Tool for quick replacement of disc spring

Abstract

This utility model discloses a tool for quickly replacing disc springs, applied in the field of disc spring replacement technology for mining equipment. The key technical points are: the tool includes a replacement block, with a spring-loading cavity and a spring-unloading cavity respectively opened on the top of the replacement block. Notches are opened on both the left and right sides of the spring-loading and spring-unloading cavities. The technical effect is: rotating the handle moves the clamping block downwards to fix the main shaft, inserting the partition plate into the slot. As the controlled electric telescopic column extends, it pushes the fixing plate to the right, disengaging the disc spring from the main shaft pull rod until the other end of the main shaft pull rod is completely detached from the replacement block. Then, the replacement assembly is pushed along the U-shaped groove to the right of the spring-loading cavity. The controlled electric telescopic column retracts, allowing the other end of the main shaft pull rod to enter the spring-loading cavity through the notch and pass through the arranged disc springs in sequence until the disc springs are completely fitted onto the outer wall of the main shaft pull rod. The main shaft pull rod is then removed vertically upwards. Installation is quick and convenient, greatly improving efficiency.

Description

Technical Field

[0001] This utility model relates to the field of disc spring replacement technology for mining equipment, specifically a tool for quickly replacing disc springs. Background Technology

[0002] In the field of mining equipment, disc springs on the main shaft tie rod play a crucial role. As elastic elements, disc springs, with their ability to provide significant thrust with minimal axial space, are widely used in many critical pieces of equipment, including single hydraulic props, mine hoists, scraper conveyors, and various jacks. In single hydraulic props, disc springs play a key role in providing reliable sealing for the hydraulic system, ensuring stable support of the roof in complex underground environments and maintaining a safe working face. In mine hoists, disc springs are the core component of the braking system, responsible for providing precise and powerful braking force during equipment startup, operation, and shutdown, ensuring the smooth lifting of personnel and materials. In the transmission device of scraper conveyors, disc springs effectively buffer the impact load during startup, extending the equipment's service life and ensuring the efficient transport of materials such as coal. These disc springs, by providing precise elastic support or braking functions, ensure the normal operation and safe operation of equipment, maintaining the stability of mine production.

[0003] However, in actual equipment maintenance and repair, replacing disc springs faces numerous challenges. Traditional disc spring replacement methods have significant drawbacks, severely restricting the efficiency of mining equipment maintenance. Typically, a large number of disc springs are manually detached from the main shaft tie rod, and then new disc springs are gradually fitted on until all disc springs are replaced. This method is not only cumbersome and requires operators to expend considerable time and effort, but this inefficient process can also lead to excessive equipment downtime, directly impacting the normal production schedule of the mine. Utility Model Content

[0004] The purpose of this utility model is to provide a tool for quickly replacing disc springs, so as to solve the problem mentioned in the background art that the existing disc spring replacement method for mining equipment is not only cumbersome to operate, but also requires operators to spend a lot of time and energy and is inefficient.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a tool for quickly replacing disc springs, comprising a replacement block, wherein the top of the replacement block is provided with a spring loading cavity and a spring unloading cavity, and notches are provided on both the left and right sides of the spring loading cavity and the spring unloading cavity, and a slot is provided on the top of the replacement block on the right side of the spring unloading cavity, wherein a partition is slidably connected to the replacement block through the inner wall of the slot, and a replacement component is provided on the right side of the replacement block.

[0006] The present invention is further configured as follows: the replacement component includes a base plate fixedly connected to the right side of the replacement block and a strip groove opened on the outer wall of the right side of the replacement block. A U-shaped groove is opened on the top of the base plate. A limiting block two is slidably connected to the base plate through the inner wall of the U-shaped groove. A base is fixedly connected to the top of the limiting block two. A fixing plate two and a placement plate are fixedly connected to the top of the base respectively. A limiting post is fixedly connected to the top of the placement plate. A top plate is fixedly connected to the other end of the limiting post. A clamping block is slidably sleeved on the outer wall of the limiting post. A threaded rod is rotatably connected to the top of the clamping block through a bearing. A limiting block one is slidably connected to the replacement block through the inner wall of the strip groove. A fixing plate one is fixedly connected to the top of the limiting block one. An electric telescopic post is fixedly connected between the adjacent surfaces of the fixing plate one and the fixing plate two.

[0007] Using the above technical solution, rotating the rotary handle drives the threaded rod to rotate. Under the action of the limiting column, the threaded rod drives the bottom of the clamping block away from the placement plate to a certain height. Then, the main shaft pull rod with the limiting nut removed is placed on the plate. Then, rotating the rotary handle drives the clamping block to move down until the main shaft pull rod is completely fixed. By controlling the extension and retraction of the electric telescopic column, the disc spring can be detached from the main shaft pull rod and installed, thereby achieving the purpose of replacement.

[0008] The present invention is further configured such that the bottom of the spring cavity is semi-circular and matches the outer radius of the disc spring.

[0009] By adopting the above technical solution, it is convenient for installers to neatly arrange the disc springs in the spring housing according to the installation requirements before installation, and to ensure that the disc springs do not easily shift during installation, thus making replacement easier.

[0010] The present invention is further configured such that: the notch and the bottom of the partition are provided with a semi-circular arc-shaped opening, which is slightly smaller than the outer radius of the disc spring.

[0011] By adopting the above technical solution, when removing the disc spring, it is convenient for the disc spring to detach from the outer wall of the spindle pull rod, so that the disc spring cannot move with the spindle pull rod, thereby achieving the detachment of the disc spring. When installing the disc spring, it is convenient for the disc spring to always remain in the spring cavity.

[0012] The present invention is further configured such that: the bottom of the clamping block is set in an angle shape, and the top surface of the placement plate is set in an arc shape directly below the angle of the clamping block.

[0013] By adopting the above technical solution, the top surface of the placement plate is set to be arc-shaped and the bottom of the clamping block is set to be angled, which facilitates the fixing of spindle tie rods of different radii within a certain range and the fixing effect is better.

[0014] The present invention is further configured such that: the threaded rod passes through the bottom of the top plate and is fixedly connected to a rotating handle, and the outer wall of the threaded rod is threadedly connected to the top plate.

[0015] By adopting the above technical solution, it is convenient to rotate the screw rod by rotating the handle. Under the limiting action of the two limiting posts, the bottom of the screw rod pushes the clamping block to move vertically downward.

[0016] This invention provides a tool for quickly replacing disc springs. It has the following advantages:

[0017] Before replacing the disc springs, arrange them neatly in the spring housing according to the installation requirements. During the replacement process, manually pull the partition plate out of the slot, then turn the rotary handle to rotate the threaded rod. Under the action of the limit post, the threaded rod moves the bottom of the clamping block away from the placement plate to a certain height. Then, place the spindle pull rod with the limit nut removed on the placement plate. At this time, the ends of the spindle pull rod with multiple disc springs are located in the spring release chamber. Then, turn the rotary handle to move the clamping block down until the spindle pull rod is completely fixed. Next, insert the partition plate into the slot, and then extend the electric telescopic column to push... The second moving fixed plate moves to the right. During this process, the second limiting block moves under the limiting action of the U-shaped groove, and the disc springs also detach from the outer wall of the spindle pull rod until the other end of the spindle pull rod is completely detached from the replacement block. Then, the replacement component is pushed to move along the U-shaped groove to the right side of the spring mounting cavity. The electric telescopic column is controlled to retract, so that the other end of the spindle pull rod enters the spring mounting cavity through the notch and passes through the arranged disc springs in sequence until all the disc springs are completely fitted onto the outer wall of the spindle pull rod. Then, the spindle pull rod is taken out vertically upward from the spring mounting cavity. The installation is quick and convenient, and the efficiency is greatly improved. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present utility model;

[0019] Figure 2 Top view of the replaced block in this utility model;

[0020] Figure 3 This is a bottom view of the base of this utility model;

[0021] Figure 4 This is a perspective view of the partition of this utility model;

[0022] Figure 5 This is a perspective view of the limiting block of this utility model;

[0023] Figure 6 A perspective view of the replacement block of this utility model.

[0024] In the diagram: 1. Replacement block; 2. Spring chamber; 3. Spring release chamber; 4. Notch; 5. Slot; 6. Partition; 7. Replacement component; 71. Base plate; 72. U-shaped groove; 73. Strip groove; 74. Limiting block one; 75. Fixing plate one; 76. Electric telescopic column; 77. Fixing plate two; 78. Base; 79. Placement plate; 710. Limiting column; 711. Top plate; 712. Clamping block; 713. Threaded rod; 714. Rotating handle; 715. Limiting block two; 8. Arc-shaped opening. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] like Figure 1-6 As shown, this utility model provides a technical solution: a tool for quickly replacing disc springs, including a replacement block 1. The top of the replacement block 1 is provided with a spring mounting cavity 2 and a spring removal cavity 3. The bottom of the spring mounting cavity 2 is semi-circular and matches the outer radius of the disc spring, which makes it convenient for the installer to neatly arrange the disc spring in the spring mounting cavity 2 according to the installation requirements before installation, and to keep the disc spring from shifting during the installation process, thus making it easier to replace. The replacement block 1 has notches 4 on both the left and right sides of the spring mounting cavity 2 and the spring removal cavity 3. The top of the replacement block 1 is provided with a slot 5 on the right side of the spring removal cavity 3. The replacement block 1 is slidably connected to a partition 6 through the inner wall of the slot 5. A replacement component 7 is provided on the right side of the replacement block 1. The bottom of the notches 4 and the partition 6 are provided with semi-circular arc-shaped openings 8, which are slightly smaller than the outer radius of the disc spring. When removing the disc spring, it is convenient for the disc spring to detach from the outer wall of the spindle pull rod, so that the disc spring cannot move with the spindle pull rod, thereby achieving the purpose of detaching the disc spring. When installing the disc spring, it is convenient for the disc spring to always remain in the spring mounting cavity.

[0027] The replacement component 7 includes a base plate 71 fixedly connected to the right side of the replacement block 1 and a strip groove 73 opened on the outer wall of the right side of the replacement block 1. A U-shaped groove 72 is opened on the top of the base plate 71. A limiting block 715 is slidably connected to the base plate 71 through the inner wall of the U-shaped groove 72. A base 78 is fixedly connected to the top of the limiting block 715. A fixing plate 77 and a placement plate 79 are fixedly connected to the top of the base 78. A limiting post 710 is fixedly connected to the top of the placement plate 79. A top plate 711 is fixedly connected to the other end of the limiting post 710. A clamping block 712 is slidably sleeved on the outer wall of the limiting post 710. The bottom of the clamping block 712 is set in an angle shape. The top surface of the placement plate 79 is set in an arc shape directly below the angle of the clamping block 712. The top surface of the placement plate 79 is set in an arc shape and the clamping block 712 are set in an arc shape. The bottom is set in an angled shape to facilitate the fixing of main shaft tie rods of different radii within a certain range, and the fixing effect is better. The top of the clamping block 712 is rotatably connected to a threaded rod 713 through a bearing. The threaded rod 713 passes through the bottom of the top plate 711 and is fixedly connected to a rotating handle 714. The outer wall of the threaded rod 713 is threadedly connected to the top plate 711, so that the threaded rod 713 can be rotated by rotating the rotating handle 714. Under the limiting action of the two limiting posts 710, the bottom of the threaded rod 713 pushes the clamping block 712 to move vertically downward. The replacement block 1 is slidably connected to the limiting block 74 through the inner wall of the strip groove 73. The top of the limiting block 74 is fixedly connected to the fixing plate 75. An electric telescopic column 76 is fixedly connected between the adjacent surfaces of the fixing plate 75 and the fixing plate 77.

[0028] By rotating the rotary handle 714, the threaded rod 713 is driven to rotate. Under the action of the limiting post 710, the threaded rod 713 drives the bottom of the clamping block 712 away from the placement plate 79 to a certain height. Then, the main shaft pull rod with the limiting nut removed is placed on the placement plate 79. Then, rotating the rotary handle 714 drives the clamping block 712 to move down until the main shaft pull rod is completely fixed. By controlling the extension and retraction of the electric telescopic post 76, the disc spring can be disengaged from the main shaft pull rod and installed, thereby achieving the purpose of replacement.

[0029] Working principle: Before replacing the disc springs, arrange them neatly in the spring housing 2 according to the installation requirements. During the replacement process, manually pull the partition 6 out of the slot 5, then rotate the rotary handle 714 to drive the threaded rod 713 to rotate. Under the action of the limit post 710, the threaded rod 713 drives the bottom of the clamping block 712 away from the placement plate 79 to a certain height. Then, remove the limit nut and place the spindle pull rod on the placement plate 79. At this time, the ends of the spindle pull rod with multiple disc springs are located in the spring release cavity 3. Then, rotate the rotary handle 714 to drive the clamping block 712 down until the spindle pull rod is completely fixed. Next, insert the partition 6 into the slot 5, and then control... The electric telescopic column 76 extends, pushing the fixed plate 77 to the right. During this process, the limiting block 715 moves under the limiting action of the U-shaped groove 72, and the disc springs also detach from the outer wall of the spindle pull rod until the other end of the spindle pull rod is completely detached from the replacement block 1. Then, the replacement assembly 7 is pushed to move along the U-shaped groove 72 to the right of the spring mounting cavity 2, and the electric telescopic column 76 is controlled to retract, so that the other end of the spindle pull rod enters the spring mounting cavity 2 from the notch 4 and passes through the arranged disc springs in sequence until all the disc springs are completely fitted on the outer wall of the spindle pull rod. Then, the spindle pull rod is taken out vertically upward from the spring mounting cavity. The installation is quick and convenient, and the efficiency is greatly improved.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A tool for quickly replacing disc springs, characterized in that: The replacement block (1) includes a spring-loading cavity (2) and a spring-releasing cavity (3) on its top. The replacement block (1) has notches (4) on both the left and right sides of the spring-loading cavity (2) and the spring-releasing cavity (3). The top of the replacement block (1) has a slot (5) on the right side of the spring-releasing cavity (3). The replacement block (1) is slidably connected to a partition (6) through the inner wall of the slot (5). A replacement component (7) is provided on the right side of the replacement block (1).

2. The tool for quickly replacing disc springs according to claim 1, characterized in that: The replacement component (7) includes a base plate (71) fixedly connected to the right side of the replacement block (1) and a strip groove (73) opened on the outer wall of the right side of the replacement block (1). A U-shaped groove (72) is opened on the top of the base plate (71). The base plate (71) is slidably connected to a second limiting block (715) through the inner wall of the U-shaped groove (72). A base (78) is fixedly connected to the top of the second limiting block (715). A second fixing plate (77) and a placement plate (79) are fixedly connected to the top of the base (78). A limiting plate (79) is fixedly connected to the top of the placement plate (79). The column (710) has a top plate (711) fixedly connected to the other end of the limiting column (710), and a clamping block (712) is slidably sleeved on the outer wall of the limiting column (710). A threaded rod (713) is rotatably connected to the top of the clamping block (712) through a bearing. The replacement block (1) has a limiting block one (74) slidably connected to the inner wall of the strip groove (73). A fixing plate one (75) is fixedly connected to the top of the limiting block one (74). An electric telescopic column (76) is fixedly connected between the adjacent surfaces of the fixing plate one (75) and the fixing plate two (77).

3. The tool for quickly replacing disc springs according to claim 1, characterized in that: The bottom of the spring cavity (2) is semi-circular and matches the outer radius of the disc spring.

4. The tool for quickly replacing disc springs according to claim 1, characterized in that: The bottom of the notch (4) and the partition (6) are both provided with a semi-circular arc-shaped opening (8), which is slightly smaller than the outer radius of the disc spring.

5. The tool for quickly replacing disc springs according to claim 2, characterized in that: The bottom of the clamping block (712) is set in an angle shape, and the top surface of the placement plate (79) is set in an arc shape directly below the angle of the clamping block (712).

6. The tool for quickly replacing disc springs according to claim 2, characterized in that: The threaded rod (713) passes through the bottom of the top plate (711) and is fixedly connected to a rotating handle (714), and the outer wall of the threaded rod (713) is threadedly connected to the top plate (711).

Images