A pressure test tool for track restoring device

Abstract

The utility model belongs to the technical field of subway maintenance equipment testing devices, and provides a pressure test tool for a rerailer, including a handle device and a pressure test device; wherein the pressure test device includes a base frame, a side frame, a top frame and a reinforcement frame, the side frame is arranged between the base frame and the top frame, the side frame is arranged on both sides of the top frame, the base frame, the side frame and the top frame form a pressure test area for placing the rerailer, the middle of the top frame is provided with a pressure test portion that can contact the output end of the rerailer, and the reinforcement frame is respectively arranged between the side frame and the top frame and between the side frame and the base frame. The structural design of the present application is reasonable, and the force structure of the rerailer is designed. While ensuring the stability of the overall structure, the pressure of the load of the rerailer can be quickly checked, and the pressure check when the equipment is subjected to load can be simulated, which can reduce the risk of oil leakage in key components when the equipment is officially put into use.

Description

Technical Field

[0001] This utility model belongs to the technical field of subway maintenance equipment testing devices, specifically relating to a rerailer pressure testing fixture. Background Technology

[0002] Currently, it is widely known that railway traffic accidents are serious incidents that disrupt the normal order of railway transportation. Rerailing devices are specialized rescue equipment used for rapid rescue operations of derailed railway locomotives and rolling stock, and are applicable to rerailing operations of subways, light rail, high-speed railways, and EMU trains. Therefore, regular maintenance and functional tests are required for rerailing devices to ensure their functional stability. Generally, the manual oil pump is pressurized to 40MPa with no lifting load on the hydraulic cylinder, and any leaks in the hydraulic operating components are considered normal. However, as the service life of the rerailing device increases, the performance of its internal seals gradually declines. In recent years, malfunctions such as the cracking of O-rings in the oil pipe joints, V-rings in the operating valve assembly, and Y-shaped seals on both sides of the hydraulic cylinder piston support ring have occurred during drill operations, causing some impact on production plans. Utility Model Content

[0003] In order to overcome the above-mentioned shortcomings of the prior art, the purpose of this utility model is to provide a test fixture for a rerailing device.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] A pressure testing fixture for a rerailing device includes a handle device and a pressure testing device;

[0006] The pressure testing device includes a base frame, side frames, a top frame, and reinforcing frames. The side frames are located between the base frame and the top frame, and on both sides of the top frame. The base frame, side frames, and top frame form a pressure testing area for placing the rerailing device. The top frame has a pressure testing section in the middle that can contact the output end of the rerailing device. The reinforcing frames are respectively located between the side frames and the top frame, and between the side frames and the base frame.

[0007] The handle device is located on the side frame.

[0008] Preferably, the base frame and top frame are rectangular frames, and there are two side frames on one side of the top frame. The handle device is located between the two side frames on one side of the top frame.

[0009] Preferably, the side frame is provided with a mounting groove, and both ends of the handle device are respectively engaged with the mounting groove of the side frame.

[0010] Preferably, the mounting groove includes a first groove and a second groove, the first groove and the second groove are connected and disposed in communication, the groove opening size of the first groove is larger than the groove opening size of the second groove, one end of the handle device is provided with a mating part and a limiting part, the cross-sectional size of the limiting part is larger than the cross-sectional size of the mating part, the cross-sectional size of the limiting part is smaller than the groove opening size of the first groove, and the mating part mates with the second groove.

[0011] Preferably, the pressure testing section is located inside the top frame, and the pressure testing section includes a fixed frame with an H-shaped cross-section, the fixed frame and the top frame forming the pressure testing section.

[0012] Preferably, the reinforcing frame is also disposed within the base frame and between the two side frames located on one side of the top frame.

[0013] Preferably, the reinforcing frame located between the side frame and the top frame is within the pressure test area, while the reinforcing frame located between the side frame and the bottom frame is outside the pressure test area.

[0014] Preferably, the reinforcing frames located within the pressure test area are symmetrically arranged on both sides of the pressure test section, and the reinforcing frames located between the side frame and the base frame are symmetrically arranged on both sides of the pressure test area.

[0015] Preferably, the base frame, side frame, top frame, and reinforcing frame are made of carbon structural steel, and the base frame, side frame, top frame, and reinforcing frame are connected by welding.

[0016] Preferably, the rerailing device includes a base, a hydraulic cylinder, a top support, and a chain. There are two bases and two hydraulic cylinders. The chain connects the two bases. The bases are placed on the base frame. The hydraulic cylinders are connected to the bases. The top support is connected to the output end of the hydraulic cylinders and forms the output end of the rerailing device.

[0017] Compared with the prior art, the beneficial effects of this utility model include:

[0018] The rerailer pressure testing fixture in this embodiment has a reasonable structural design. It is designed for the force-applying structure of the rerailer, ensuring the overall structural stability while quickly verifying the load pressure of the rerailer. It simulates the pressure verification when the equipment is under load, which can reduce the risk of oil leakage in key components when the equipment is put into formal use. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the installation of the present invention and the rerailing device.

[0021] Figure 2 This is a schematic diagram of the pressure testing device of this utility model.

[0022] Figure 3 This is a schematic diagram of the mounting groove of this utility model.

[0023] Figure 4 This is a schematic diagram showing the fit between the handle device and the mounting groove of this utility model.

[0024] in:

[0025] 1-Base frame, 2-Side frame, 3-Top frame, 4-Reinforcing frame, 5-Handle device, 6-First groove, 7-Second groove, 8-Matching part, 9-Limiting part, 10-Fixing frame, 11-Base, 12-Hydraulic cylinder, 13-Top support, 14-Chain. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, it will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of this utility model; the described embodiments are merely some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0028] Example:

[0029] like Figure 1-4 As shown, this embodiment provides a rerailer testing fixture, including a testing device;

[0030] The pressure testing device includes a base frame 1, side frames 2, a top frame 3, and a reinforcing frame 4. The side frames 2 are located between the base frame 1 and the top frame 3, and are located on both sides of the top frame 3. The base frame 1, side frames 2, and top frame 3 form a pressure testing area for placing the rerailer. The base frame 1 and the top frame 3 are square frame structures. There are two side frames 2 on one side of the top frame 3. A pressure testing section that can contact the output end of the rerailer is provided in the middle of the top frame 3. It includes a fixing frame 10 with an H-shaped cross-section. The fixing frame 10 is specifically located inside the square frame structure of the top frame 3. The fixing frame 10 is connected to the top frame 3 to form the aforementioned pressure testing section.

[0031] The reinforcing frames 4 are respectively installed between the side frames 2 and the top frame 3, between the side frames 2 and the bottom frame 1, between the two side frames 2 located on one side of the top frame 3, and inside the bottom frame 1 which has a square frame structure;

[0032] Specifically, the reinforcing frame 4, located between the side frame 2 and the top frame 3, is within the pressure test area and is symmetrically arranged on both sides of the pressure test section;

[0033] The reinforcing frame 4, located between the side frame 2 and the base frame 1, is outside the pressure test area and is symmetrically arranged on both sides of the pressure test area.

[0034] The rerailing device of this embodiment includes a base 11, a hydraulic cylinder 12, a top support 13, and a chain 14. There are two bases 11 and two hydraulic cylinders 12. The chain 14 connects the two bases 11. The bases 11 are placed on the base frame 1. The hydraulic cylinders 12 are connected to the bases 11. The top support 13 is connected to the output end of the hydraulic cylinders 12 and forms the output end of the rerailing device.

[0035] In this embodiment, the base 11 of the rerailer contacts the base frame 1 of the pressure testing device. Two hydraulic cylinders 12 are placed in the pressure testing area in a triangular structure with the base 11. The top support 13 contacts the top frame 3 at the pressure testing section. During the test, the output end of the hydraulic cylinder 12 lifts and applies force. The middle position of the top frame 3 (i.e., the pressure testing section) and the base frame 1 are the stress points. Since the two hydraulic cylinders 12 are used in parallel, the external force is consistent, and the middle position of the top frame 3 has the greatest force. Therefore, the H-shaped fixed frame 10 enhances the structural strength of the pressure testing section. The reinforcing frame 4 inside the base frame 1 is used to ensure the structural stability of the base frame 1 after it is subjected to pressure. At the same time, in conjunction with the reinforcing frame 4 in the pressure testing area and the reinforcing frame 4 outside the pressure testing area, the overall structural stability of the pressure testing device under stress is further improved.

[0036] In this embodiment, the base frame 1, side frame 2, top frame 3, and reinforcing frame 4 are made of carbon structural steel, specifically A3 steel (steel grade Q235) as the main material. A3 steel is carbon structural steel with relatively high plasticity, toughness, and weldability, Poisson's ratio of 0.3, yield strength of 235MPa, and tensile strength of 375-500MPa. Specifically, the base frame 1, side frame 2, top frame 3, and reinforcing frame 4 have a wall thickness of 5mm and are square steel with a cross-sectional side length of 50mm×50mm.

[0037] In this embodiment, the base frame 1, side frame 2, top frame 3, and reinforcing frame 4 are connected by welding.

[0038] Meanwhile, because the traditional frame structure of the pressure testing device has two support rods at the bottom, the space formed by the support rods and the bottom facilitates forklift lifting and transportation; however, the support rod structure causes the bottom of the frame structure to be stressed and generate bending moment, affecting the stability of the frame structure. In order to facilitate the movement of this embodiment, the following improvements have been made:

[0039] It is also equipped with a handle device 5, which is located on the side frame 2.

[0040] Specifically, the handle device 5 is located between two side frames 2 on one side of the top frame 3. The side frames 2 are provided with mounting grooves, and the two ends of the handle device 5 are respectively engaged with the mounting grooves of the side frames 2.

[0041] Specifically, the mounting groove includes a first groove 6 and a second groove 7. The first groove 6 and the second groove 7 are connected and arranged in communication. The groove opening size of the first groove 6 is larger than the groove opening size of the second groove 7. One end of the handle device 5 is provided with a mating part 8 and a limiting part 9. The cross-sectional size of the limiting part 9 is larger than the cross-sectional size of the mating part 8 and smaller than the groove opening size of the first groove 6. The mating part 8 mates with the second groove 7.

[0042] When in use, the handle device 5 is engaged with the mounting groove. Because the limiting part 9, the engaging part 8 and one end of the handle form a groove structure, the engaging part 8 and the second groove 7 can act as a limiting structure. When the user applies force to the handle device 5, the handle device 5 is in a stable state relative to the side frame 2, which facilitates the movement of the pressure testing device and makes it easy to transport. At the same time, the handle device 5 can be removed during testing without affecting the overall structure.

[0043] In summary, the rerailer pressure testing fixture of this embodiment has a reasonable structural design. It is designed for the force application structure of the rerailer, ensuring the overall structural stability while quickly verifying the load pressure of the rerailer and simulating the pressure verification when the equipment is under load. This can reduce the risk of oil leakage in key components when the equipment is put into formal use.

[0044] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A pressure test tool for a track restoring device, characterized in that: include: Handle device and pressure test device; The pressure test device comprises a bottom frame, a side frame, a top frame and a reinforcement frame, wherein the side frame is arranged between the bottom frame and the top frame, the side frame is arranged on both sides of the top frame, the bottom frame, the side frame and the top frame form a pressure test area for placing the rerailer, a pressure test portion capable of contacting the output end of the rerailer is arranged at the middle of the top frame, and the reinforcement frame is respectively arranged between the side frame and the top frame and between the side frame and the bottom frame; The handle device is arranged on the side frame.

2. The rail re-tracking pressure testing tool according to claim 1, characterized in that: The bottom frame and the top frame are square frame structures, the number of the side frames located on one side of the top frame is two, and the handle device is arranged between the two side frames located on one side of the top frame.

3. The rail restoring device pressure testing tool according to claim 2, characterized in that: The side frame is provided with a mounting groove, and the two ends of the handle device are respectively matched with the mounting grooves of the side frame.

4. The rail restoring device pressure testing tool according to claim 3, characterized in that: The mounting groove includes a first groove body and a second groove body, the first groove body is connected to the second groove body, the groove size of the first groove body is larger than the groove size of the second groove body, one end of the handle device is provided with a matching part and a limiting part, the cross-sectional size of the limiting part is larger than the cross-sectional size of the matching part, the cross-sectional size of the limiting part is smaller than the groove size of the first groove body, and the matching part matches with the second groove body.

5. The rail restoring device pressure testing tool according to claim 2, characterized in that: The pressure test part is arranged in the top frame, and the pressure test part includes a fixing frame with an H-shaped cross-section. The fixing frame and the top frame form the pressure test part.

6. The rail restoring device pressure testing tool according to claim 2, characterized in that: The reinforcing frame is also arranged in the bottom frame and between the two side frames on one side of the top frame.

7. The rail re-tracking pressure testing tool according to claim 1, characterized in that: The reinforcing frame between the side frame and the top frame is within the pressure test area, and the reinforcing frame between the side frame and the bottom frame is outside the pressure test area.

8. The rail restoring device pressure testing tool according to claim 7, characterized in that: The reinforcement frames located in the pressure test area are symmetrically arranged on both sides of the pressure test portion, and the reinforcement frames located between the side frames and the bottom frame are symmetrically arranged on both sides of the pressure test area.

9. The rail restoring device pressure testing tool according to claim 1, characterized in that: The base frame, side frame, top frame and reinforcement frame are made of carbon structural steel, and the base frame, side frame, top frame and reinforcement frame are connected by welding.

10. The rail re-tracking pressure testing tool according to claim 1, characterized in that: The rerailer includes a base, a cylinder, a jacking support and a chain. There are two bases and two cylinders. The chain connects the two bases. The base is placed on the base frame. The cylinder is connected to the base. The jacking support is connected to the output end of the cylinder and forms the output end of the rerailer.

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