CN215850566U

CN215850566U - Narrow gauge mine car is to dismounting device

Info

Publication number: CN215850566U
Application number: CN202120257620.9U
Authority: CN
Inventors: 孙刚友; 付海鹏; 于宝民
Original assignee: FOURTH INSTITUTE OF NUCLEAR ENGINEERING OF CNNC
Current assignee: FOURTH INSTITUTE OF NUCLEAR ENGINEERING OF CNNC
Priority date: 2021-01-29
Filing date: 2021-01-29
Publication date: 2022-02-18
Anticipated expiration: 2031-01-29

Abstract

This novel dismounting device that belongs to, concretely relates to narrow gauge mine car is to dismounting device. The utility model provides a narrow gauge mine car is to dismounting device, wherein, including setting up the reinforcement subassembly on the shaft, set up power component on the reinforcement subassembly, the free end of power component is towards the mine car wheel that needs to be dismantled, and this dismounting device still includes and keeps off the ring, keeps off the ring and can fix on the shaft, plays limiting displacement. This neotype effect that is showing is: the novel movable type automatic lifting device has the characteristics of strong practicability, good applicability, simple and reliable operation and the like, and particularly, the device is light and light, the weight is about 8kg, and a single person can move to a required position; the disassembly and disassembly of the wheel pair of the mining vehicle are realized, the wheel and the shaft can be replaced or maintained according to the condition by one person, and the wheel pair disassembly and maintenance work efficiency and the safe reliability are improved.

Description

Narrow gauge mine car is to dismounting device

Technical Field

This novel dismounting device that belongs to, concretely relates to narrow gauge mine car is to dismounting device.

Background

Narrow gauge mine cars are widely used as carriers for mineral transportation in small and medium sized coal mines or non-coal mines. The narrow gauge mine car has the characteristics of high flexibility, good reliability and the like in ore transportation, but in the mine production, due to the high use frequency of the mine car, the maintenance workload of each mine to the mine car is also large, the mine car is the equipment with the largest maintenance and reconstruction quantity in the mine, and the wheel pair is the most important part on the mine car, namely the travelling mechanism and the bearing mechanism. In the event of a mine car failure, wheel set failure is again the most severe. In the event of a mine car failure, the proportion of damage caused by wheel set failure is in excess of 70%. Typically, wheels, axles, bearings, seals, etc. collectively comprise a mine wheel pair. During the running process of the mine car, particularly when the mine car runs on a curve, the mine car needs to bear the action of gravity, friction force and centrifugal force. The wheels are subject to friction and wear is increasing. Therefore, the maintenance of the mine wheel set is enhanced, the reliability and the service life of the wheel set are improved, the service life is prolonged, the turnover capacity is maintained, the production cost is reduced, and the method has important significance for mine production.

The prior art of disassembling and disassembling the wheel pair of the narrow-gauge mine mainly has two modes. The first is the traditional manual disassembly scheme; the second is a scheme of adopting fixed hydraulic wheel pair disintegration equipment in the machine maintenance factory building.

Adopt the manpower to dismantle the scheme, narrow gauge mine car use 1a back wheel to need the wheel to the disintegration when carrying out the overhaul, and manual operation is higher to the physical stamina requirement of worker, wastes time and energy, especially when the wheel of wheel pair and axle interference volume are too big, needs alone fixed wheel pair one end, and another person uses the sledge hammer to beat the wheel hard, once beats and need rotate an angle of wheel and beat again, only can accomplish the work of disassembling of wheel pair up to beating the wheel axle. The sledge hammer is easy to damage the bearing, the shaft or the inner hole of the wheel when being improperly used. One set of wheel sets is provided with two wheels, 2 mine car maintenance workers in the manual disassembly mode often can only complete the disassembly of 2 sets of wheel sets at most in one day, the low disassembly and assembly process seriously affects the work efficiency, and the quality of the wheel sets is directly related to the safe use of the mine car. In the process, the risk of injury to human bodies caused by splashing of ironware can also occur, and the equipment maintenance safety condition is poor.

The technical scheme of fixed hydraulic disassembly equipment is adopted, the technical scheme is generally used in conditional medium-sized mines, a mine car maintenance workshop is constructed in a mine ground surface industrial field in a matched mode, a track is arranged on the ground of the workshop, and a lifting crane is installed on the upper portion of the workshop. After the maintenance mine car is delivered to a maintenance workshop, a crane driver operates the lifting equipment to lift the mine car wheel pair to the hydraulic disassembling equipment, and the wheel pair is disassembled into the shaft and the wheel through the hydraulic disassembling equipment. The technical scheme has the advantages of high degree of mechanization, good safety, high efficiency and low labor intensity of workers, and maintenance personnel can control the lifting crane to cooperate with the hydraulic wheel set disassembling equipment to complete the disassembly of the wheel set. The scheme needs to plan a special mine car maintenance workshop before mine construction, equipment for traveling matched with a construction workshop, wheel set hydraulic disassembly and the like. The hydraulic dismantling equipment for the mine car wheel pair has large volume and weight, belongs to fixed places for installation and use, and cannot be freely moved and has poor flexibility. Because the mine car transportation activity range is wider, the mine car also often appears the wheel pair in the pit and damages and can not drag the circumstances such as, just at this moment just needs the mine car maintenance workman to go into the pit and carry out maintenance on the spot, and this kind of fixed hydraulic pressure dismounting device just can not be used this moment, still needs manual operation method to go on dismantling of wheel pair. Meanwhile, the land for facilities such as a hoisting machine room, a wellhead room duty room, a preschool meeting room, a material warehouse and the like which are required to be built in a wellhead industrial field by using the hydraulic dismounting equipment are very short, the workshop maintained by matching with a special mine car is more difficult to construct under the condition that the indexes of the newly-built mine land are strictly controlled, and meanwhile, the mine infrastructure investment is increased by matching with the special maintenance workshop for constructing the mine car, so that the mine sensitive to the investment economy is not suitable.

Therefore, a simple and convenient mining vehicle wheel pair dismounting device is needed, and the high efficiency and the safety of the maintenance work of the mining vehicle wheel pair are realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the defects of the prior art, and provides a narrow gauge mine car wheel pair dismounting device, can be used for dismounting and disassembling a mine car wheel pair by one-man operation, and provides necessary conditions for replacing wheels or wheel pair shaft members for maintenance personnel.

This is novel to realize like this: the utility model provides a narrow gauge mine car is to dismounting device, wherein, including setting up the reinforcement subassembly on the shaft, set up power component on the reinforcement subassembly, the free end of power component is towards the mine car wheel that needs to be dismantled, and this dismounting device still includes and keeps off the ring, keeps off the ring and can fix on the shaft, plays limiting displacement.

The narrow-gauge mine car wheel pair dismounting device is characterized in that the power assembly is a jack.

The narrow-gauge mine car wheel pair dismounting device is characterized in that the number of the jacks is two, and the jacks are 5t vertical hydraulic jacks.

According to the detaching device for the wheel pair of the narrow-gauge mine car, the reinforcing assembly comprises the two side protection plates, the two side protection plates are provided with the through holes, the wheel shaft is arranged in the through holes, and the jack is fixedly connected with the two side protection plates.

The narrow-gauge mine car wheel pair dismounting device further comprises a reinforcing bolt, and the reinforcing bolt is used for fastening and connecting the two side guard plates.

The narrow gauge mine car wheel pair dismounting device further comprises a supporting back plate, and the supporting back plate is arranged on the side walls of the two side guard plates.

The narrow gauge mine car wheel pair dismounting device further comprises a base frame, the supporting back plate is fixedly connected with the base frame, and the base frame is arranged at one end of the wheel shaft.

The narrow gauge mine car wheel pair dismounting device further comprises a positioning baffle plate, and the positioning baffle plate is used for fixing the position of the wheel shaft.

This neotype effect that is showing is: the novel movable type automatic lifting device has the characteristics of strong practicability, good applicability, simple and reliable operation and the like, and particularly, the device is light and light, the weight is about 8kg, and a single person can move to a required position; the disassembly and disassembly of the wheel pair of the mining vehicle are realized, the wheel and the shaft can be replaced or maintained according to the condition by one person, and the wheel pair disassembly and maintenance work efficiency and the safe reliability are improved. The method comprises the following specific steps:

1) high practicability

The device is manufactured by a common mine tool and is tightly combined with the mine.

2) Good applicability

The device can meet the requirements of various types of narrow-gauge mine cars for ground maintenance, and can also be used for carrying out wheel set disassembly maintenance work in underground space.

3) Simple operation

The device has simple structure and convenient use and operation. The device is moved to a working place of the wheel set to be maintained, the wheel set is vertically placed on a platform of the device, the shaft of the wheel set is fed into the middle of the guard plates on the two sides and is always close to the positioning baffle plate, the baffle ring on the shaft is close to the lower parts of the guard plates on the two sides, and then the reinforcing bolt is installed well, so that the fixing preparation work is completed.

And then two vertical hydraulic jacks are placed at the upper ends of the two side guard plates, the two jacks work simultaneously to upwards jack the wheels on the wheel pair, one wheel on the wheel shaft is dismounted along with the work of the jacks, the wheel pair is adjusted in one direction after the dismounting, and the step is repeated to finish the dismounting work of the other wheel. After the wheel pair is disassembled, the mine car maintenance personnel can overhaul or replace components such as wheel shafts, wheels, bearings and the like.

Drawings

FIG. 1 is a schematic view of a narrow-gauge mine car wheel pair dismounting device;

FIG. 2 is a schematic sectional view of the structure of FIG. 1 from direction II-II.

Wherein: 1 jack, 2 two side guard plates, 3 positioning baffle plates, 4 reinforcing bolts, 5 supporting back plates, 6 base frames, 7 mine car wheels, 8 wheel shafts and 9 retaining rings

Detailed Description

This is realized like this, narrow gauge mine car is to dismounting device includes: two 5t vertical hydraulic jacks are arranged; four steel plates with the thickness of 10 mm; three No. 10I-steel; two sets of M22 x 160 bolts.

1. I-steel

The I-steel is used as a basic base of the device and plays roles of a supporting device framework and a stabilizing device. In order to ensure the strength and stability of the base, 10 # I-steel is selected. The size combines the function of the device, and the frame base is formed by welding two I-shaped steels with the length of 600mm and one I-shaped steel with the length of 270 mm.

2. Steel plate

The steel sheet mainly plays the effect of support and fixed position in this device, for the intensity of guaranteeing the steel sheet and the overall stability of device, selects 10mm thick steel sheet. The size of the supporting back plate is 480mm multiplied by 270 mm; two side guard plates with the size of 360mm multiplied by 180 mm; the size of the positioning baffle is 180mm multiplied by 70 mm.

3. Bolt

The bolt main function is fixed both sides backplate, and two bolt trompil central point on horizontal are put apart from the locating baffle 80mm, and two bolt holes are 110mm in vertical interval. The bolt is M22 × 160, and is provided with a nut.

According to the euphroe of load 1t is independently selected to the narrow gauge mine car, euphroe shell welding is in the top crossbeam department of device for tighten up wire rope.

4. Jack

According to the maintenance experience and theoretical calculation of the narrow-gauge mine car for many years, two 5t vertical hydraulic jacks are selected for pushing the wheels out of the wheel axle.

5. Connection mode

One end of two I-steel with the length of 600mm and one I-steel with the length of 270mm are welded to form a frame structure base, the other end of the two I-steel with the length of 600m is welded with a supporting back plate steel plate, short edges of two side guard plates are welded on the supporting back plate, and the distance between the two guard plates and the center line of the supporting back plate is 35 mm; the positioning baffle is welded between the two side guard plates and is 160mm away from the support back plate; the bolt holes are formed in the guard plates on the two sides, the center positions of the holes of the two transverse bolts are 80mm away from the positioning baffle, and the distance between the two bolt holes is 110mm in the vertical direction.

6. Application method

The main body of the device is moved to a working place where the wheel set needs to be disassembled, the wheel set is vertically placed on the base of the device, and the wheel set is pushed between the two side guard plates, so that the wheel shaft enters between the guard plates, and the retaining ring on one side of the wheel shaft is just positioned at the lower parts of the two side guard plates. And inserting the fixing bolt into the bolt hole, and tightening the nut to complete the fixing work of the wheel pair on the device. And then two 5t jacks are placed at the upper ends of the guard plates at the two sides of the device, the hydraulic jacks are started, the wheels are pushed out of the wheel shaft along the upward direction of the jacks along with the contact of the top ends of the jacks with the wheels, the disassembly work of the wheels and the wheel shaft at one side is completed, the steps are repeated at the other side, the disassembly and disassembly work of the wheel pair is finally completed, and conditions are created for further maintaining and replacing components for mine car maintenance personnel.

1. Firstly, placing a wheel set to be disassembled in a maintenance site, and ensuring a space for placing the disassembled component and the wheel set disassembling device;

2. moving the device to the position near the wheel pair, vertically placing the wheel pair on the device platform, pushing the wheel pair into the middle of the two side protection plates to be close to the baffle plate, and placing a fixing bolt into the bolt hole for tightening;

3. placing two jacks on the upper parts of the two side guard plates, and starting the jacks to enable the upper parts of the jacks to contact the wheels;

4. along with the upward force of the jack, the wheel shaft retaining rings at the lower sides of the wheel pairs, which are in contact with the protective plates at the two sides, can be tightly propped against the device, so that the wheel shafts cannot move upwards along with the jack, the wheels on the wheel shafts can be slowly ejected out by the jack, the disassembling work of the wheels at one side is completed, the direction of the wheel pairs is adjusted, the step of upward complaint is repeated, the disassembling work of the wheels at the other side is completed, and conditions are created for the maintenance of the wheel pairs of the mine.

Claims

1. The utility model provides a narrow gauge mine car is to dismounting device which characterized in that: the dismounting device comprises a reinforcing component arranged on a wheel shaft (8), a power component is arranged on the reinforcing component, the free end of the power component faces a mine wheel (7) needing to be dismounted, the dismounting device further comprises a baffle ring (9), and the baffle ring (9) can be fixed on the wheel shaft (8) and plays a role in limiting.

2. The narrow gauge mine car wheel set dismounting device of claim 1, wherein: the power component is a jack (1).

3. The narrow gauge mine car wheel set dismounting device according to claim 2, characterized in that: the lifting jack (1) is provided with two lifting jacks which are 5t vertical hydraulic lifting jacks.

4. The narrow gauge mine car wheel set dismounting device of claim 3, wherein: the reinforcing component comprises two side protection plates (2), through holes are formed in the two side protection plates (2), the wheel shaft (8) is arranged in the through holes, and the jack (1) is fixedly connected with the two side protection plates (2).

5. The narrow gauge mine car wheel set dismounting device of claim 4, wherein: the double-side protective plate fixing device further comprises a reinforcing bolt (4), and the reinforcing bolt (4) is used for fastening and connecting the two side protective plates (2).

6. The narrow gauge mine car wheel set dismounting device of claim 5, wherein: the novel protective plate is characterized by further comprising a supporting back plate (5), wherein the supporting back plate (5) is arranged on the side walls of the two side protective plates (2).

7. The narrow gauge mine car wheel set dismounting device of claim 6, wherein: the automobile back support device is characterized by further comprising a base frame (6), the support back plate (5) is fixedly connected with the base frame (6), and the base frame (6) is arranged at one end of the wheel shaft (8).

8. The narrow gauge mine car wheel set dismounting device of claim 7, wherein: the wheel hub fixing device further comprises a positioning baffle (3), and the positioning baffle (3) is used for fixing the position of the wheel hub (8).