A method and device for supporting large mining cars

Abstract

This invention discloses a support device for a large mining car, including a support base, a vertically arranged sleeve wall extending upward from the top of the support base, a sliding cylinder slidably sleeved on the outer side of the sleeve wall, and a mining car support chassis connected to the top of the sliding cylinder; a hydraulically driven tooling is connected between the top of the sliding cylinder and the support base, and a locking structure is formed between the sliding cylinder and the sleeve wall for controlling the relative position of the sliding cylinder and the sleeve wall. The advantages of this invention compared to the prior art are: it provides a method and device for supporting a large mining car that achieves adjustable support height, has height limits, and ensures operational safety.

Description

Technical Field

[0001] This invention relates to the field of auxiliary equipment technology for assembling mining cars, specifically to a support method and support device for large mining cars. Background Technology

[0002] Currently, large mining trucks are generally supported using fixed stirrup-type support fixtures during assembly operations. However, this existing support method has the following drawbacks: The support height is fixed and cannot be adjusted, requiring frequent ladder climbing for assembly work, which is not ergonomic and results in low work efficiency. Working at heights increases the safety risks of falls, collisions, and other accidents. After the mining car is assembled, a large-tonnage overhead crane must be used to lift the entire machine off the production line, which greatly increases the investment and operating costs of the equipment.

[0003] Therefore, developing a height-adjustable, safe, reliable mine car support device and method that does not require large hoisting equipment is of great practical significance. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the above-mentioned technical defects and provide a support method and support device for large mining cars that realizes support height adjustment, has height limit, and ensures operational safety.

[0005] To solve the above-mentioned technical problems, the technical solution provided by the present invention is as follows: a support device for a large mining car, including a support base, a vertically arranged sleeve wall extending upward from the top of the support base, a sliding cylinder slidably sleeved on the outside of the sleeve wall, and a mining car support chassis connected to the top of the sliding cylinder. A hydraulic drive fixture is provided between the top of the sliding cylinder and the support base, and a locking structure is formed between the sliding cylinder and the sleeve wall to control the relative position of the sliding cylinder and the sleeve wall.

[0006] Preferably, the side wall of the sliding cylinder is further provided with a plurality of vertically arranged guide grooves, and the outer side wall of the sleeve wall is provided with a guide rail protruding outward in accordance with the guide grooves.

[0007] Preferably, the locking structure includes a plurality of pin holes provided on the sleeve wall and a shaft groove provided on the bottom wall of the sliding cylinder corresponding to the position of the pin holes.

[0008] Preferably, the locking structure further includes a rod groove on the outer wall of the sliding cylinder and a pin engaged in the rod groove.

[0009] Preferably, a hydraulic lock that works in conjunction with the hydraulic drive fixture is also connected to one side of the support base.

[0010] Another aspect of this invention discloses a method for supporting a large mining truck, comprising the following steps: S1: The sliding cylinder is driven to rise and fall along the sleeve wall by the hydraulic drive tooling, and the mine car is adjusted to the target assembly height; S2: The relative position of the sliding cylinder and the sleeve wall is locked by the locking structure to maintain the support height; S3: After assembly, release the locking structure, control the hydraulic drive tool to drive the sliding cylinder down, so that the mine car tires touch the ground and it goes off the line by itself.

[0011] Preferably, step S2 includes pulling out the pin and inserting it into the corresponding pin hole, so that when the sliding cylinder loosens and slides down, the shaft groove abuts against the pin.

[0012] Preferably, in step S1, after the mine car is adjusted to the target assembly height, the oil circuit of the hydraulically driven tooling is closed by a hydraulic lock.

[0013] The advantages of this invention compared to the prior art are: In this invention, the support height can be continuously adjusted by hydraulic drive to adapt to the ergonomic working height, reduce climbing work, and improve assembly efficiency; This invention employs a dual protection system of hydraulic lock pressure holding and pin mechanical locking to prevent cylinder failure and slippage, thus significantly improving safety. After assembly, the support device can be lowered directly to allow the tires to touch the ground and automatically go offline, eliminating the need for large overhead cranes and reducing equipment investment. In this invention, the guide groove and guide rail work together to ensure smooth lifting, accurate positioning, and a stable and reliable structure. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the support device for a large mining truck.

[0015] Figure 2 This is a structural schematic diagram of the cross-section of a support device for a large mining truck.

[0016] Figure 3 This is an exploded view of the structural schematic diagram of the support device for a large mining truck.

[0017] As shown in the figure: 1. Support base, 2. Sleeve wall, 3. Sliding cylinder, 4. Mine car support chassis, 5. Hydraulic drive fixture, 6. Guide groove, 7. Guide rail, 8. Pin hole, 9. Shaft groove, 10. Rod groove, 11. Pin, 12. Hydraulic lock. Detailed Implementation

[0018] The present invention will now be described in further detail with reference to the accompanying drawings.

[0019] Combined with appendix Figure 1-3As shown, a support device for a large mining car includes a support base 1, which adopts a rigid support structure and is used to provide a stable support foundation when placed on the ground. A vertically arranged sleeve wall 2 extends upward from the top of the support base 1. A sliding cylinder 3 is slidably sleeved on the outside of the sleeve wall 2. The sliding cylinder 3 can slide up and down along the sleeve wall 2 to achieve overall height adjustment. A mining car support chassis 4 is also connected to the top of the sliding cylinder 3. The mining car support chassis 4 is used to directly support the bottom frame of the mining car and is compatible with 95-ton and 150-ton large mining cars.

[0020] In use, a hydraulic drive fixture 5 is connected between the top of the sliding cylinder 3 and the support base 1. The hydraulic drive fixture 5 adopts a telescopic oil cylinder to drive the sliding cylinder 3 to move up and down. A locking structure is formed between the sliding cylinder 3 and the sleeve wall 2 to control the relative position of the sliding cylinder 3 and the sleeve wall 2, so as to achieve mechanical positioning and prevent falling after the sliding cylinder 3 is raised or lowered to the correct position.

[0021] The side wall of the sliding cylinder 3 is also formed with several vertically arranged guide grooves 6. The outer side wall of the sleeve wall 2 is provided with a guide rail 7 to cooperate with the guide grooves 6. The guide grooves 6 and the guide rail 7 cooperate with each other to restrict the circumferential rotation of the sliding cylinder 3 and ensure that the lifting process is smooth and does not wobble.

[0022] The locking structure includes several pin holes 8 on the sleeve wall 2 and shaft grooves 9 on the bottom wall of the sliding cylinder 3 corresponding to the positions of the pin holes 8. The locking structure also includes a rod groove 10 on the outer wall of the sliding cylinder 3 and a pin 11 engaged in the rod groove 10. The pin 11 can be pulled out and pass through the pin holes 8 to extend into the shaft groove 9. When the hydraulic drive tooling 5 fails, the pin 11 abuts against the shaft groove 9, preventing the sliding cylinder 3 from sliding down and improving the safety of use.

[0023] A hydraulic lock 12 is also connected to one side of the support base 1 to cooperate with the hydraulic drive tool 5. The hydraulic lock 12 is used to close the oil circuit of the hydraulic drive tool 5 to achieve hydraulic pressure holding after the lifting position is reached, and to maintain the stability of the support height.

[0024] In a specific implementation of the present invention, the above-mentioned support device is arranged at the bottom of a large mine car so that the mine car support chassis 4 supports the mine car. The following steps are included: S1: The sliding cylinder 3 is driven to rise and fall along the sleeve wall 2 by the hydraulic drive tool 5 to adjust the mine car to the target assembly height that conforms to ergonomics. During the rising and falling process, the guide groove 6 and the guide rail 7 cooperate to achieve stable guidance. S2: The hydraulic lock 12 closes the oil circuit of the hydraulic drive tool 5 to achieve hydraulic pressure holding and positioning. Then, the pin 11 is pulled out from the rod groove 10 and inserted into the pin hole 8 of the corresponding height, so that the end of the pin 11 extends into the shaft groove 9 to complete the mechanical locking and maintain the support height. S3: After the mine car is assembled, pull out the pin 11 to release the mechanical lock, control the hydraulic drive tool 5 to drive the sliding cylinder 3 to slowly descend until the mine car tires are completely in contact with the ground, and the mine car can drive away by itself, and can be completed without hoisting equipment.

[0025] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0026] In this application, the support device is set up with multiple symmetrical sets according to the specifications of the mine car. The lifting adjustment and double locking structure work together to significantly improve assembly efficiency and operational safety, and reduce the investment in large hoisting equipment.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A support device for a large mining car, characterized in that: Includes a support base (1), with a vertically arranged sleeve wall (2) extending upward from the top of the support base (1), and a sliding cylinder (3) slidably sleeved on the outside of the sleeve wall (2), and a mine car support chassis (4) is also connected to the top of the sliding cylinder (3). A hydraulic drive fixture (5) is connected between the top of the sliding cylinder (3) and the support base (1). A locking structure is formed between the sliding cylinder (3) and the sleeve wall (2) to control the relative position of the sliding cylinder (3) and the sleeve wall (2).

2. The support device for a large mining car according to claim 1, characterized in that: The side wall of the sliding cylinder (3) is also formed with several vertically arranged guide grooves (6), and the outer side wall of the sleeve wall (2) is provided with a guide rail (7) in cooperation with the guide grooves (6).

3. The support device for a large mining car according to claim 1, characterized in that: The locking structure includes a plurality of pin holes (8) provided on the sleeve wall (2) and a shaft groove (9) provided on the bottom wall of the sliding cylinder (3) corresponding to the position of the pin holes (8).

4. The support device for a large mining car according to claim 3, characterized in that: The locking structure also includes a rod groove (10) on the outer wall of the sliding cylinder (3) and a pin (11) engaged in the rod groove (10).

5. A support device for a large mining car according to claim 1, characterized in that: The support base (1) is also connected to a hydraulic lock (12) that is configured to cooperate with the hydraulic drive tooling (5) on one side.

6. A method for supporting a large mining car, wherein the supporting device according to any one of claims 1-5 is arranged at the bottom of the large mining car, so that the mining car support chassis (4) supports the mining car, characterized in that: Includes the following steps: S1: Drive the sliding cylinder (3) to rise and fall along the sleeve wall (2) by hydraulic drive tooling (5) to adjust the mine car to the target assembly height; S2: The relative position of the sliding cylinder (3) and the sleeve wall (2) is locked by the locking structure to maintain the support height; S3: After assembly, release the locking structure and control the hydraulic drive tool (5) to drive the sliding cylinder (3) to descend, so that the mine car tires touch the ground and it goes offline by itself.

7. The support for a large mining car according to claim 6, characterized in that: S2 includes pulling out the pin (11) and inserting it into the corresponding pin hole (8). When the sliding cylinder (3) loosens and slides down, the shaft groove (9) abuts against the pin (11).

8. The support for a large mining car according to claim 6, characterized in that: In S1, after the mine car is adjusted to the target assembly height, the oil circuit of the hydraulic drive tool (5) is closed by the hydraulic lock (12).

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