Portable disassembly and assembly tool for sliding chute wearing plate

Abstract

A portable sliding groove wearing plate disassembling and assembling tool comprises a first extrusion head and a second extrusion head which are oppositely arranged, and each extrusion head is divided into a clamping part, a rotating part and a pushing part from front to back; the adjacent ends of the clamping parts of the two extrusion heads are connected with first reset springs. The rotating parts of the two extrusion heads are overlapped, and a pin shaft penetrates through the middle of the two extrusion heads; grooves are formed in the opposite sides of the pushing parts of the two extrusion heads; a U-shaped supporting seat is arranged outside the two extrusion heads, and the rear part of the U-shaped supporting seat is connected with an oil cylinder; the front portion of the oil cylinder is connected with an extrusion block, the rear portion of the oil cylinder is connected with a power module, the tail ends of the pushing parts of the two extrusion heads can extrude the outer side of the extrusion block under the action of the first reset spring, and an extrusion shaft of the oil cylinder can push the extrusion block into a gap between the two pushing parts. The tool is compact in overall design, small in size and light in weight, does not need to depend on additional structures such as an auxiliary arm, and greatly improves operation convenience and flexibility.

Description

Technical Field

[0001] The utility model relates to the technical field of railway equipment maintenance, in particular to a portable chute wear plate disassembly and assembly tool. Background Art

[0002] During the current maintenance of railway freight cars, the disassembly and assembly of bogie chute wear plates is a necessary maintenance process. In current maintenance units, low-pressure hydraulic stations and scissor-type structure tools with large oil cylinders are generally used for disassembly operations. This type of disassembly tooling has the following problems:

[0003] 1. The equipment includes hydraulic station, oil pipes, disassembly tools, auxiliary arms and other structures, which are complex in structure and high in cost.

[0004] 2. Due to the use of a low-pressure system, in order to ensure the disassembly and extrusion effect, the cylinder volume is large, and the corresponding disassembly tool size and weight are also large, which brings a series of problems, such as the inability of one person to operate the tool, the high labor intensity of the workers, etc., and an auxiliary arm must be used to balance the weight of the system.

[0005] 3. The auxiliary arm of the balancing weight is generally fixed, so it must be used at a fixed work station, which cannot meet the working needs of the current bogie assembly line operation.

[0006] In order for the disassembly tool to complete the two actions of squeezing and resetting, a double-acting cylinder and a dual-circuit control hydraulic station must be used, which makes the entire system structure and maintenance more complicated. Utility Model Content

[0007] The utility model aims to solve the technical problems that the current maintenance tooling has a complex structure, is inconvenient to operate, and cannot meet the current assembly line operation requirements. It aims to redesign a portable lithium-ion wear plate disassembly and assembly tool with a simple structure and easy operation. The tooling mainly consists of two parts: a wear plate extrusion assembly and a lithium-ion hydraulic unit.

[0008] The technical solution of this utility model is as follows:

[0009] A portable chute wear plate disassembly and assembly tool, comprising:

[0010] A first extrusion head and a second extrusion head having the same shape and arranged opposite to each other, wherein the extrusion head is divided into a clamping part, a rotating part and a pushing part from front to back;

[0011] The clamping parts of the two extrusion heads extend outwards respectively, with the ends being in the shape of hook claws, and the adjacent ends are connected to a first return spring;

[0012] The rotating parts of the two extrusion heads are arranged in a superimposed manner, with a pin running through the middle;

[0013] Grooves are provided on opposite sides of the pushing parts of the two extrusion heads;

[0014] A U-shaped support base is provided on the outside of the two extrusion heads. The U-shaped support base includes two clamping arms at the front and a connecting base at the rear. The two clamping arms are connected to the two extrusion heads through a pin shaft, and the connecting base is connected to the oil cylinder.

[0015] The front of the cylinder is connected to an extrusion block, and the rear is connected to a power module. The power module is powered by a lithium battery, achieving portability. The front of the extrusion head is smaller than the rear. The ends of the pusher parts of the two extrusion heads can be squeezed outside the extrusion block by the action of a first return spring. The extrusion shaft of the cylinder can push the extrusion block into the gap between the two pusher parts.

[0016] The extrusion block pushes the two extrusion heads' pushers outward, which in turn moves the clamping parts of the extrusion heads inward, squeezing the wear plate and facilitating its removal from or insertion into the bogie chute, enabling assembly and disassembly. Furthermore, the lever structure employed here allows the front end of the extrusion head to maintain a high tightening force during operation, ensuring smooth assembly and disassembly, even with stubborn or tightly-fitted components.

[0017] In addition, it uses lithium batteries as power, so the tool can be easily carried for operation.

[0018] Specifically, the first return spring is in a compressed state, so that the end of the pushing portion is always pressed against the extrusion block to prevent the extrusion head from shaking.

[0019] The two extrusion heads are connected by contact only at the rotating parts.

[0020] The length of the clamping arm of the support seat is greater than that of the pushing portion, and the pushing portion can be rotated out from the space between the two clamping arms.

[0021] As one embodiment, the rotating part is a semicircular structure with a thickness half that of the clamping part and the pushing part. The thickness of the clamping part and the pushing part is the same as the distance between the two clamping arms, and the width of the clamping arms is greater than the diameter of the rotating part.

[0022] The connecting seat is provided with an internal thread and is threadedly connected to the cylinder barrel of the oil cylinder.

[0023] The cylinder includes:

[0024] The piston is sealed and connected to the cylinder through a piston seal group;

[0025] The extrusion shaft has a rear end connected to the piston and a front end extending out of the cylinder and connected to the extrusion block;

[0026] The second return spring is sleeved on the extrusion shaft and connected between the front end of the cylinder and the bottom of the extrusion shaft.

[0027] As one embodiment, the extrusion block is triangular, with an arc-shaped head at the front end, which is inserted into the end of the pushing part to form a wedge-shaped structure.

[0028] An arc-shaped platform is provided at the end of the pushing portion, and the arc-shaped platform can be squeezed onto the arc-shaped head of the squeezing block.

[0029] When the wear plate needs to be released, the friction between the front extrusion head and the extrusion block is cleverly utilized to achieve a smooth and stable release process. This not only improves the smoothness of operation, but more importantly ensures the safety of use and effectively prevents accidental injuries caused by sudden release.

[0030] The lithium-ion battery hydraulic unit includes a cylinder, a micro hydraulic pump, a brushless reduction motor, and a lithium battery. This utility model uses the lithium battery as power, with the brushless reduction motor driving the micro hydraulic pump to output high pressure, pushing the cylinder piston forward. The cylinder utilizes a high-pressure, thin-arm cylinder, which is compact, lightweight, safe, and reliable. It utilizes a one-way, self-return mechanism and spring-loaded automatic reset. This assembly and disassembly tool is compact and lightweight, making it suitable for disassembling and assembling bogie runner wear plates.

[0031] Through the above design:

[0032] 1) The present invention cleverly adopts a wedge-shaped structural design. The innovation lies in its ability to efficiently convert the linear motion of the piston into the circular motion of the front extrusion head. The design of this structure is extremely streamlined, consisting of only a few key components, avoiding the use of complex connecting rod mechanisms, thereby greatly reducing the complexity and failure rate of the system. It is particularly worth mentioning that the front extrusion head part incorporates a lever structure design. This design enables the front end to maintain a large tightening force during operation, ensuring the normal disassembly and assembly operations, even when facing more stubborn or tight components. When the wear plate needs to be released, the friction between the front extrusion head and the extrusion block is cleverly utilized to achieve a smooth and stable release process, which not only improves the smoothness of the operation, but more importantly, ensures the safety of use and effectively prevents accidental injuries caused by sudden release. In addition, the overall design of the tooling is compact, small in size and light in weight, and no longer requires reliance on additional structures such as auxiliary arms, greatly improving the convenience and flexibility of operation.

[0033] 2) Another highlight of the present invention is the use of a lithium-ion hydraulic unit as a power source, completely eliminating the constraints of traditional wired power supplies. This change allows operators to hold the device and easily follow the rhythm of the production line for disassembly and assembly operations, greatly improving work efficiency and flexibility. The core components of the lithium-ion hydraulic unit - a miniaturized hydraulic pump and a thin-walled cylinder designed to withstand high pressure - together constitute the core of this efficient power system. They are not only small in size and light in weight, but also have excellent performance, completely replacing the previous large and bulky hydraulic stations and cylinders. At the same time, due to the removal of cumbersome accessories such as oil pipes, the structure of the entire system has become simpler and clearer, which not only reduces the difficulty of installation and maintenance, but also significantly improves the reliability and durability of the system. In general, this innovative design not only simplifies the operating process and reduces the burden on operators, but also provides strong technical support for the efficient operation of modern production lines. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In the attached figure:

[0035] Figure 1 It is a structural diagram of the disassembly and assembly tooling;

[0036] Figure 2 Exploded view for disassembly and assembly work;

[0037] Figure 3 Schematic diagram of the structure of the support base, where (a) is a top view and (b) is a front view;

[0038] The components represented by the reference numerals in the figure are:

[0039] 1. First extrusion head; 11. Clamping part; 12. Rotating part; 13. Pushing part; 2. Second extrusion head; 3. Support seat; 31. Clamping arm; 32. Connecting seat; 4. Extrusion block; 5. Cylinder; 51. Piston; 52. Extrusion shaft; 53. Piston sealing group; 54. Second return spring; 6. Power module; 7. First return spring. DETAILED DESCRIPTION

[0040] See also Figure 1 and Figure 2 , a portable slide wear plate disassembly and assembly tool, mainly composed of two parts: wear plate extrusion assembly and lithium battery hydraulic unit.

[0041] The wear plate extrusion assembly adopts a simple wedge-shaped extrusion structure, including:

[0042] The first extrusion head 1 and the second extrusion head 2 have the same shape and are arranged opposite to each other. The extrusion head is divided into a clamping part 11, a rotating part 12 and a pushing part 13 from front to back.

[0043] The clamping parts 11 of the two extrusion heads extend outward respectively, and the ends are in the shape of hook claws. The two clamping parts form a jaw style, which is convenient for squeezing the upper and lower edges of the wear plate. The adjacent ends are connected to the first return spring 7, which is always in a compressed state.

[0044] The rotating parts 12 of the two extrusion heads are stacked and arranged with a pin running through the middle. The rotating part 12 is a semicircular structure with a thickness half that of the clamping part 11 and the pushing part 13.

[0045] Grooves are provided on opposite sides of the pushing portions 13 of the two extrusion heads.

[0046] See also Figure 3 A U-shaped support base 3 is provided outside the two extrusion heads. The U-shaped support base 3 serves as the integral load-bearing structure of the wear plate extrusion assembly and includes two front clamping arms 31 and a rear connecting base 32. The front center of the two clamping arms 31 is connected to the two extrusion heads via a pin. The length of the clamping arms 31 of the support base 3 is greater than the pushing portion 13. The distance between the two clamping arms 31 is the same as the thickness of the clamping portion 11 and the pushing portion 13. The pushing portion 13 can be rotated out of the space between the two clamping arms 31. The width of the clamping arms 31 is greater than the diameter of the rotating portion 12.

[0047] The connecting seat 32 is provided with an internal thread and is threadedly connected to the outer wall of the cylinder barrel of the oil cylinder 5.

[0048] The front of the oil cylinder 5 is connected to the extrusion block 4, and the rear is connected to the power module 6. The power module 6 is powered by a lithium battery, achieving portability. The front of the extrusion head is smaller than the rear. The ends of the pusher parts 13 of the two extrusion heads can be squeezed outside the extrusion block 4 by the action of the first return spring 7. The extrusion shaft 52 of the oil cylinder 5 can push the extrusion block 4 into the gap between the two pusher parts 13. The two extrusion heads are only connected at the rotating part 12.

[0049] In this embodiment, the extrusion block 4 is an isosceles triangle, the bottom side of which is connected to the oil cylinder, and the front end is provided with an arc-shaped head, which is inserted into the end of the pushing part 13 to form a wedge-shaped structure.

[0050] An arc-shaped platform is provided at the end of the pushing portion 13, and the arc-shaped platform can be pressed on the arc-shaped head of the extrusion block 4, so as to facilitate the extrusion block 4 to slide in the gap between the two pushing portions.

[0051] When the wear plate needs to be released, the friction force is cleverly utilized between the front extrusion head and the extrusion block 4 to achieve a smooth and stable release process, which not only improves the smoothness of operation, but more importantly ensures the safety of use and effectively prevents accidental injuries caused by sudden release.

[0052] By pushing the extrusion block 4, the pushing parts 13 of the two extrusion heads can be moved outward respectively, and then the clamping part 11 of the head of the extrusion head can be moved inward, which can squeeze the wear plate, making it easy to take it out of or put it into the bogie slide slot, and realize the disassembly and assembly operation. Moreover, a lever structure design is adopted here. The two clamping parts 11 at the front end of the two extrusion heads rotate around the pin shaft. The end pushing part 13 is forced outward, and the two clamping parts 11 move inward with the pin shaft as the center of the circle. The front ends of the two clamping parts 11 move inward at the same time, which produces an extrusion effect on the slide slot wear plate. The tightening degree is controlled by the embedding length of the extrusion block 4. This design enables the front end of the extrusion head to maintain a large tightening force during operation, ensuring the normal progress of the disassembly and assembly operation, even when facing more stubborn or tight parts.

[0053] The lithium-ion hydraulic unit comprises an oil cylinder 5, a micro hydraulic pump, a brushless reduction motor and a lithium battery.

[0054] See also Figure 2 , oil cylinder 5 includes:

[0055] The piston 51 is sealed with the cylinder barrel through the piston seal assembly 53;

[0056] The extrusion shaft 52 has a rear end connected to the piston 51 and a front end extending out of the cylinder and connected to the extrusion block 4;

[0057] The second return spring 54 is sleeved on the extrusion shaft 52 and connected between the front end of the cylinder and the bottom of the extrusion shaft 52 .

[0058] This utility model uses a lithium battery as its power source. A brushless reduction motor drives an eccentric wheel, generating high-pressure output from a micro-hydraulic pump, which propels piston 51 of cylinder 5 forward. The hydraulic circuit integrates a manual pressure relief valve and other mechanisms. Cylinder 5 utilizes a high-pressure, thin-arm cylinder 5, which is compact, lightweight, safe, and reliable. It utilizes a one-way, self-return mechanism and a spring-loaded automatic reset mechanism. This assembly and disassembly tool is compact and lightweight, making it ideal for disassembling and assembling bogie chute wear plates.

[0059] During operation, the extrusion block 4 is connected to the extrusion shaft 52 of the oil cylinder 5. Under the action of the oil cylinder 5, it can move forward. It adopts a wedge-shaped structure (nearly triangular) with a small front width and a large rear width. When the piston is in place, only the front end of the extrusion block is between the tails of the two extrusion heads. When the extrusion shaft 52 moves forward, it pushes the extrusion block 4 forward. Due to the different front and rear widths, an outward force is applied to the tails of the two extrusion heads, thereby driving the front jaws of the two extrusion heads to contract inward. After the wear plate is squeezed to the appropriate size, the wear plate can be taken out or put in from the bogie chute to complete the disassembly and assembly operation. After the wear plate is in place, the oil cylinder 5 is kept under high pressure to relieve pressure. Due to the elasticity of the wear plate itself and the elastic force of the second return spring 54 in the oil cylinder 5, the extrusion head pushes the extrusion block 4 backward to achieve the reset of the extrusion block 4.

Claims

1. A portable chute wear plate disassembly and assembly tool, characterized in that: include: A first extrusion head (1) and a second extrusion head (2) having the same shape and arranged opposite to each other, wherein the extrusion heads are divided from front to back into a clamping portion (11), a rotating portion (12) and a pushing portion (13); The clamping parts (11) of the two extrusion heads extend outwards respectively, with the ends being in the form of hook claws, and the adjacent ends are connected to a first return spring (7); The rotating parts (12) of the two extrusion heads are arranged in a superimposed manner, with a pin running through the middle; The pushing parts (13) of the two extrusion heads are provided with grooves on opposite sides thereof; A U-shaped support seat (3) is provided outside the two extrusion heads. The U-shaped support seat (3) includes two clamping arms (31) at the front and a connecting seat (32) at the rear. The two clamping arms (31) are connected to the two extrusion heads via a pin shaft, and the connecting seat (32) is connected to the oil cylinder (5). The front of the oil cylinder (5) is connected to an extrusion block (4), and the rear is connected to a power module (6). The front size of the extrusion block (4) is smaller than the rear size. The ends of the pushing parts (13) of the two extrusion heads can be squeezed outside the extrusion block (4) under the action of a first return spring (7). The extrusion shaft (52) of the oil cylinder (5) can push the extrusion block (4) into the gap between the two pushing parts (13).

2. The disassembly and assembly tool according to claim 1, characterized in that: The first return spring (7) is in a compressed state.

3. The disassembly and assembly tool according to claim 1, characterized in that: The two extrusion heads are connected by contact only at the rotating parts (12).

4. The disassembly and assembly tool according to claim 1, characterized in that: The length of the clamping arm (31) of the support seat (3) is greater than that of the pushing portion (13), and the pushing portion (13) can be rotated out from the space between the two clamping arms (31).

5. The disassembly and assembly tool according to claim 1, characterized in that: The rotating portion (12) is a semicircular structure, and its thickness is half that of the clamping portion (11) and the pushing portion (13). The thickness of the clamping portion (11) and the pushing portion (13) is the same as the distance between the two clamping arms (31), and the width of the clamping arms (31) is greater than the diameter of the rotating portion (12).

6. The disassembly and assembly tool according to claim 1, characterized in that: The connecting seat (32) is provided with an internal thread and is threadedly connected to the cylinder barrel of the oil cylinder (5).

7. The disassembly and assembly tool according to claim 1, characterized in that: The oil cylinder (5) comprises: The piston (51) is sealed and connected to the cylinder through the piston seal assembly (53); An extrusion shaft (52), the rear end of which is connected to the piston (51), and the front end of which extends out of the cylinder and is connected to the extrusion block (4); The second return spring (54) is sleeved on the extrusion shaft (52) and connected between the front end of the cylinder and the bottom of the extrusion shaft (52).

8. The disassembly and assembly tool according to claim 1, characterized in that: The extrusion block (4) is triangular in shape, and has an arc-shaped head at the front end.

9. The disassembly and assembly tool according to claim 8, characterized in that: The end of the pushing portion (13) is provided with an arc-shaped platform, and the arc-shaped platform can be squeezed onto the arc-shaped head of the squeezing block (4).

10. The disassembly and assembly tool according to claim 1, characterized in that: The power module (6) uses a lithium battery as power.

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