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Industry Standard of the People's Republic of China
1.5t Mine Car Vertical Shaft Multi-rope Cage
1 Subject Content and Scope of Application
MT 233 91
This standard specifies the product classification, technical requirements, test methods, inspection specifications and markings, packaging, transportation and storage of 1.5t mine car vertical shaft multi-rope cage (hereinafter referred to as "cage"). This standard is applicable to 1.51 mine car vertical shaft multi-slit sheath cage. The cage is used in conjunction with a multi-rope friction hoist and a combined steel phosphorus road to lift 1.5t standard mine cars, equipment or personnel.
This standard is used in conjunction with the head rope crown hanging device, the tail rope suspension device and the roller ear. 2 Reference standards
GB 699 High-quality carbon knot saw steel grades and general technical conditions GB 700
Technical conditions for ordinary carbon structural steel
GiB 1184
Form and position tolerances Provisions for unmarked tolerances GB1228
GB 1229
GB1230
GB 1231
Commercial strength large hexagon bolts for steel structures
High strength hexagon nuts for steel structures
High strength washers for steel structures
Technical conditions for high strength large hexagon bolts, large hexagon nuts and washers for steel structures GB1804
Tolerances and fits Limit deviations of dimensions without tolerances GB3322.1
Basic parameters and dimensions of coal mine cars Type dimensions of torsion shear type high strength bolt connection pairs for fixed car box steel structures GB3632
GB3633 Technical conditions for torsion shear type high strength explosion inspection connection pairs for steel structures Code for design of steel structures
GBJ 17
JB/ZQ3011 General technical conditions for welding parts of engineering machinery MT236 Combined steel etherway roller fin ear
Multi-rope lifting container B-type wire rope suspension device Wedge-shaped rope card Multi-rope lifting container B-type wire rope suspension device Pad-type head rope suspension device MT237.2
MT 237.3 Multi-rope lifting container B-type wire rope suspension device Mouse round tail rope suspension device MT237.4
Multi-rope lifting container B-type wire rope suspension device Flat tail rope suspension device MT237.5 Multi-rope lifting container B-type wire rope suspension device Hip technical conditions 3 Terminology
3.1 Tank body This standard specifies the main body of the cage excluding the head rope suspension device, tail rope suspension device and wheel ear, referred to as the tank body. 3.2 Head rope suspension device The connecting device between the tank body and the lifting wire rope. 3.3 The connection between the tail rope suspension device and the balance wire rope (there are two types of tail rope suspension devices: round and flat). 3.4 The overwinding support claw device is a safety device to prevent the cage from falling after the cage is overwinded at the wellhead. 3.5 The four-corner ears are guides installed at the four corners of the cage to stabilize the cage when the cage is in and out of the vehicle. Approved by the Ministry of Energy of the People's Republic of China on February 2, 1991, and implemented on May 1, 1991. MT 233-91. 3.6 Braking ears are steel ears that enter the wedge-shaped tank channel when the cage is overwinding. 4 Product classification
4.1 Varieties
This standard has ten varieties:
600mm track gauge one-layer two-car cage narrow type (Figure 1)a.
600mm class two-car cage wide type (Figure 1)600mm track gauge two-layer four-car cage narrow type (Figure 2)d.
600mm track gauge two-layer four-car cage wide type (Figure 2)e.
9h mm gauge two-layer four-car cage narrow type (Figure 2) 900mm gauge two-layer four-car cage wide type (Figure 2) f.
600mm gauge three-layer four-car cage narrow type (Figure 3) 600mm gauge three-layer four-car cage wide type (Figure 3) 900mm gauge three-layer four-car cage narrow type (Figure 3) 900mm gauge three-layer four-car cage wide type (Figure 3) i.
4.2 Type
4.2.1 This standard does not include the head rope suspension device, tail rope suspension device and roller lug. The above three items have been separately compiled and the design unit shall select and match them (see Appendix A~D).
4.2.2 The head rope suspension device is directly connected to the tank body, and the center distance of the connection hole is determined according to the rope pattern. The tail rope suspension device is provided with round tail rope and flat tail rope.
4.2.3 Cover doors are set at both ends of the upper, middle and lower plates of the cage (the lower plate cover doors are locked with bolts) to facilitate the unloading of long materials or as an emergency safety exit.
4.2.4 The cage door adopts a curtain-type door that opens and closes up and down. 4.2.5 A removable safety chain is set on the top of the cage. 4.2.6 The cage body adopts a steel column, and the column and each plate body are connected with high-strength bolts. 4.2.7 The cage adopts the platform connection method, and the guide rails overlapped with the shaking platform are divided into type 1 (shaped) and type 1ⅡI (flat) to adapt to different types of operating platforms.
4.2.8 The cage adopts roller lugs to guide along the combined steel tank track, and the roller key lugs and brake lugs are set at both ends of the cage. 4.2.9 The track surface boss and the upper car stopper are arranged inside the cage to cooperate with the car stopper. The upper car stopper is opened and closed by the opening and closing curved track set by the external projection (Appendix F>). The track surface boss and the car stopper are arranged symmetrically, which is suitable for the same and different sides of the mine car entering and exiting. This cage should be used in conjunction with the pull-resistance device. 4.2.10 The upper layer of the three-layer cage is not equipped with a track, which is used exclusively for lifting personnel. 4.2.11 For the two-layer two-car and two-layer four-car cages, according to the depth of the shaft and the anti-skid requirements of the hoist, an adjustable weight block is attached to the middle position of the lower plate.
4.3 Basic integers and dimensions
The basic parameters and dimensions of the cage shall comply with the provisions of Figure 1, Figure 2, Figure 3 and Table 1, Table 2. 199
LL (limited wheel ear increase external training)
on, (track length)
(Gan this same distance)
MT 233-91
L. (External extension of wheel filler ear
L, long seat
L. (Climbing between the roads)
MT 233-91
MT 233-.- 91
1. External extension of roller ear
L Track length
L Follow the road)
Cage model
GDG1.6/6/2/2
GDG1.5/6/2/2K
GDG1.5/6/2/4
GDG1.5/9/2/4
GDG1.5/6/2/4K
GDO1.6/9/2/4K
GDG1.5/6/3/4
GDG1.5/9/3/4
GDG1.5/6/3/4K
GDG1.5/9/3/4K
Mining car model
MGC1. 7-6
MGC1, 7-6
Passenger area
Table 1 Basic parameters
Passenger number
Maximum terminal
Xie Jiaohe
13.6810.78
14.6810.93
13.6811.91
14,6811.88
13.6812.57
14.6812.77
13.6813.93
14.6813.9R
Note: The head, tail and winch specifications in the table are all calculated and selected based on the well depth of 100m for reference. 280
.39. 5
Width×Thickness
166×26
1177×28
Handao Yindu
Applicable multi-rope friction wheel
Lift model
JKM2.8×6
JKM3.5×6
JEMAX4
JKM3.5×6
JKM4×4
JKM3.5×6
JKM4X4
JKM3.5×6
JKM4X4
JKM4×4
JKM3.5×6
Dragon guide
GDG1.5/6/2/2| |tt||GDGL.5/6/2/2K
GPXG1.5/6/2/4
G>G1.5/9/2/4
GDG1.5/6/2/4K
GDG1.5/9/2/4K
GG15/6/3/4
GDG1.5 /9/3/4
GDG1.5/6/3/4K
GDG1.5/9/3/4K
cage model
GDG1.5/6/2/2
GDG1.5/6/2/2K
GDG1.5/6/2/4
GIXG1.5/9/2/4
GDG1.5/6/2/4K
GDG1.5/9/2/4K
GDG1.5/6/3/4
GTXG1.5/9/3/4
GDG1.5/6/3/4K
GDG1.5/9/3/4K
4.4 Model compilation method
MT 233—91
Main dimensions
Supplementary characteristic code
Main parameter code
Second characteristic code
First characteristic code (multiple ropes in vertical shaft)
Type code (cage)
Model compilation example:
1.5/9/2/4K
4. 5 Combination model compilation method
Combination model compilation example:
MT 233—91
Wide cage (narrow cage is not fat)
Total number of loaded mine cars: 4
Two-layer cage
-900mm gauge mine car
Nominal load of pregnant car: 1.5t
Combined steel road
Vertical and multi-rope
Roller ear model
Tail rope suspension device model
Head rope suspension device model
Cage model
For example: 1.5t mine car, 900mm gauge, four-car vertical shaft multi-rope wide cage, using combined steel road guide and 6 1350kN head rope suspension Hanging device, 3 1000kN round tail rope hanging devices, @350mm thick wheel tank ear combination, the combination model is GDG1.5/9/2/4K-XSD135(B)/6-XWY100(B)73-LS35 roller tank ear type guide
Number of tail ropes
Tail rope hanging device model
Number of first ropes
First rope hanging device model
Cage model
4.6 Selection combination
The tank cage and the first rope hanging device, tail rope hanging device, and roller tank ear shall be selected and combined by the design unit, and refer to Appendix AD when selecting. 5 Technical requirements
5.1 The cage shall comply with the requirements of this standard and be manufactured in accordance with the drawings and technical documents approved by the prescribed procedures. 5.2 The general technical requirements for equipment manufacturing not specified in this standard shall be implemented in accordance with the relevant provisions of national standards and industry standards. 5.3 The materials used for the cage must comply with the relevant technical provisions of national standards and industry standards and have a certificate of conformity from the supplier. Otherwise, they must be tested and only qualified ones can be used. It is allowed to replace materials with performance not lower than that specified in this standard. The material substitution of important parts must be approved by the design unit.
5.4 Except for the side panels, pan cover and safety canopy, they must be made of whole materials. 205
MI 233—91
5.5 All bent, forged and stamped parts shall not have defects such as cracks, breaks and pits. 5.6 The non-T-added surfaces of castings and forgings and the cut surfaces of steel plates and profiles shall be flat and intact. 5.7 The welds shall be smooth and neat, and there shall be no defects such as burn-through cracks and arc pits. 5.8 The welded parts and components must be shaped after welding. 5.9 Rivets should be firm and complete, without any defects such as tilting, cracks, looseness, etc. The dimensional tolerances are not noted in the drawings. The machined parts shall comply with the 1T14 grade in GB1804, and the welded and cast parts shall comply with the IT[6 grade. 5.10
The shape and position tolerances are not noted in the drawings. The machined parts shall comply with the D grade in GB1184. 5.11
Except for the contact surface of the components at the high-strength screw connection, the parts and components must be treated with anti-corrosion before assembly. 5.121
5.72.1 Before painting, the parts and components must be surface treated to remove only slight dot-shaped or stripe-shaped marks on the metal surface, and clean the surface with dry compressed air or other tools. The surface is silver-gray. 5.12.2 According to the conditions of the mine, choose a suitable anti-corrosion coating. Under the condition of medium or alkaline water quality with pH greater than or equal to 6, the oxidized (asphalt) type coating can be used preferentially. Under the acidic condition with pH less than 6 and in the area with high salt content of groundwater, the nitrided (chlorinated) rubber type coating can be used preferentially.
5.12.3 Select the corresponding epoxy zinc-rich primer or oxidized (nitrogen-1) rubber zinc-rich primer as the primer for removing the layer, apply one coat, and the coating thickness is 30um. Apply three coats of protective topcoat, and the total coating thickness is not less than 150um. The adhesion of the paint film is not less than 80%. The outer surface is painted with yellow paint. 5.13 The dyeing (comfort board) should be inspected by a manipulator, and the inspection content should comply with the provisions of the relevant standards. 5.14 Sulfonated body.
5.14.1 The dimensional tolerance of the tank body should comply with the provisions of Table 3. Table 3 Tolerance of tank size
Measurement object
Length square
Width direction
Frame shape
Height direction
Distance between bottom surfaces of two steel tank ears
Length direction
Four-corner tank
Ear spacing
Width square
L, -30
Basic size
1240~1274
6 280~~6 563
Limit deviation
Layer one car cage
Layer two car cage
Two-layer tank cage
Three-layer cage
Three-layer cage
Layer two car cage
Layer one car cage
Layer one car cage
Length direction
Note: The code in the table is shown in Figure 1, Figure 2, and Figure 3
M 233—97
Continued Table 3
5.14.2 The shape and position tolerance of the end body shall comply with the requirements of Table 1. Basic dimensions
Table 4 Tolerance of tank shape and position
Measured elements
Center line of suspension hole of steel beam (hanging plate)
Plane of each pan
Each column
Bottom surface of each pan's tank ears
Both sides of each pan's ears
Abutment surface and side surface of each pan's ears
Four corners of pan
Inner track
Two inner inverted surfaces
Length
Width
Side and cake surface of frame
Plane
Tolerance mm
Difference of diagonal
Difference of diagonal
Limit deviation
Center line of superstructure
Benchmark
Upper plate of excavationbZxz.net
Center line of frame
Center line of frame
Bottom and side of upper plate
Center potential
Center line of frame
5.14.3 After the barrier is manufactured, a static balance test shall be carried out, and the eccentric moment of the barrier shall not exceed 200N·m. 5.15 The contact surfaces of all high-strength bolt connections shall comply with relevant standards. 5.16 All parts of the chain cage must be inspected and qualified. Purchased and outsourced parts must have a certificate of conformity before they can be assembled. 5.17 When this standard is used, the following basic conditions should be met: equipment
One-layer one-car cage
One-layer two-year tank cage
One-layer one-car tide cage
One-layer two-car virtual cage
Two-layer shining cage
Three-layer male cage
One-layer one-car wall cage
One-layer two-car gift cage
One-layer one-car light cage
One-layer two-car tank installation
5.17.1 Rigid four-corner tunnel stabilizers must be set at the level of the cage entering and exiting the car. 5.17.2 The gaps between the cage and the tank cage, the tank cage and the counterweight, and the cage, counterweight and the shaft wall and the beam must comply with the relevant provisions of the "Coal Mine Safety Regulations". The cross-sectional layout of the cage hoisting and hoisting can refer to the appendix. 207
MT 233-91
5.17.3 Wedge-shaped brake channels and anti-collision beams shall be installed above and below the well, and a reverse claw device for the overwinding tank support shall be installed at the wellhead. 5.17.4 The upper car stopper shall be opened and closed by a curved rail, and the installation position of the curved rail at the level of the car in and out shall comply with the relevant provisions of Appendix E.
5.17.5 On the car out side of the cage, a pull-resistance device shall be used to position and pull the mine car. 5.17.6 When the cage is hoisted in a shallow well, if its own weight cannot meet the anti-skid requirements of the hoist, an adjustable counterweight block shall be installed in the middle of the lower plate of the cage. The adjustment range is shown in Appendix A.
6 Test method
6.1 Cage health inspection
The cage main beam (suspension plate) shall be inspected in accordance with the requirements of Article 5.13, and a flaw detection report shall be attached. 6.2 Riveting quality inspection
6.2.1 Rivet inspection method:
a. According to the rivet diameter, use a small hammer of 0.25~-0.1kg to inspect. h. Use a sample to check the size of the rivet head.
6.2.2 Visually inspect the appearance quality of the rivet and check whether the rivet head has defects such as cracks, incompleteness, distortion and deformation. 6.2.3 Unqualified rivets should be scraped off and re-riveted, but the number of defective rivets replaced shall not exceed 20% of the total number of rivets in this node. 6.2.4 After riveting, the degree of fit between parts can be checked with a 0.1mm feeler gauge. Rivets that are not close must be scraped off and re-riveted. The method of baking rivets shall not be used for secondary riveting.
6.3 Weld quality inspection
The appearance inspection of the weld key should be carried out before painting, and its external defects shall not exceed the allowable range specified in JB/ZQ3011. Use visual inspection or 10 times the magnification to check whether there are cracks, slag inclusions, burn-through, splash residues, weld nodules or incomplete welding, incomplete welding, etc., and use a small hammer to hit important parts to check whether there are pores and slag inclusions. 6.4 High-strength bolt connection quality inspection
6.4.1 Torque coefficient inspection should be carried out when one of the following situations occurs. 1. The purchased bolts do not have a specified torque coefficient range. b.: The bolts installed have a specified torque coefficient, but the service time has exceeded the warranty period. C. The torque coefficient is unstable during installation. 6.4.2 Torque coefficient test method:
Take 6 high-strength bolts, first install one on the axial force measuring device, and use a torque wrench. When the axial force measuring device reaches the specified preload, read the torque short value, and calculate the torque coefficient based on the preload and torque value. Continue in this way until 5 torque coefficients are obtained.
6.4.3 If the torque coefficients of the 5 high-strength bolts measured are stable between 0.110 and 0.150, and their standard deviation is less than or equal to (0), 010, the conventional torque method can be used for construction. 6.4.4 If the torque coefficient range of the high-strength bolts measured varies, the torque short value can be calculated according to the average value of the measured torque short coefficients as the basis for the torque method construction. The torque coefficient of bolts from different batches, at different times and under different placement conditions should be measured respectively, and the torque value should be determined for construction.
6.5 Friction test of contact surface of high-strength bolt connection 6.5.1 The friction test piece must be subjected to the same sandblasting, zinc-rich paint and other treatments as the production process. 6.5.2 The test piece used for the double-sided friction coefficient test is shown in Figure 4. 208
3×yang
Central
Central
MI 233--91
Central
Central
Sx 80
Figure 4 Double-sided friction test piece
124×12
12150×12
1215×12
5a x 24
15(1×12
The tension joint consists of two core plates and two splicing plates. The frequency of installation is 3 to 6. When installing the bolts, measure the preload of the single bolts at the left and right ends of the splicing (the preload of each bolt at both ends must be equal) and fill it in Table 5. Then install the specimen on the tension device for a tension test. Gradually increase the load. When the joint surfaces of the steel plates at the ends of the joint slide against each other, record the tension value and fill it in Table 5. The load continues to increase. When the other end moves, fill the tension carefully in Table 5. Table 5 Double-sided friction coefficient test
Splicing board 124×12
Core board 124×12
Splicing board 150×12
Core board 150×20
Number of bolts
Each bolt
Preshrinkage force, EN
Splicing board left wax
Load, kN
Friction coefficient
Each bolt
Preshrinkage force, kN
Splicing board end
Load, kN
Efficiency coefficient
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