Testing device for holding force of switch machine

Abstract

The utility model belongs to the technical field of switch machine maintenance, and discloses a switch machine holding force testing device which comprises a supporting base, a driving device, a force measuring sensor and a force measuring meter. The driving device comprises a power assembly and a push-and-pull movement assembly, the power assembly is arranged on the supporting base, one end of the push-and-pull movement assembly is connected with the power assembly, the other end of the push-and-pull movement assembly is connected with a to-be-detected switch machine part, and the push-and-pull movement assembly is used for testing the retention force of the to-be-detected switch machine part; one end of the force measuring sensor is connected with the push-pull motion assembly or the to-be-detected switch machine component, and the other end of the force measuring sensor is connected with the supporting base; and the force measuring meter is arranged on the supporting base and is connected with the force measuring sensor. According to the utility model, maintenance personnel can conveniently control and maintain the performance and the abrasion condition of the coupler, the testing efficiency of the retention force is improved, and the manual operation cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of switch machine maintenance, and in particular relates to a switch machine retention force testing device. Background Art

[0002] The switch plays a key role as a signal infrastructure in the railway system and is of great significance to driving safety and transportation efficiency. The holding force of the S700K switch control plate refers to the friction force generated by the contact between the upper surface of the control plate and the brake plate on the lower surface of the retaining coupler. Its size is determined by the pressure applied by the disc spring on the control plate to the retaining coupler. The friction pressure is adjusted by adding or reducing the balancing plate between the disc spring and the brake plate to control the size of the holding force. The holding force provides the rebound force of the turnout repelling the rail and the reaction force after it is in place after the turnout is switched to the right position, preventing the control plate from moving in the opposite direction and causing the turnout to lose its indication. In daily use, when the turnout is not well fitted or in poor working condition, the wheelset will continuously squeeze and impact the point rail when the train passes the turnout. The point rail connecting action rod will transfer the impact force to the retaining coupler control plate. After multiple high-intensity impacts, the pressure applied by the disc spring on the control plate to the retaining coupler is damaged and reduced, which eventually leads to a decrease in holding force. The retaining coupling is an important part of the S700K switch machine. Its control plate is fixed to the bottom of the retaining coupling by a disc spring. As a consumable part, the disc spring has a direct impact on the holding force. Therefore, when repairing the S700K switch machine, a special test device that can test the retaining force of the switch machine is required to enable maintenance personnel to control the performance and wear of the retaining coupling. The existing switch machine retention force test device has low efficiency in testing the core data control plate retention force in the S700K switch machine maintenance process.

[0003] Therefore, a new technology is needed to solve the problem of lacking a switch machine holding force testing device in the prior art. Utility Model Content

[0004] In order to solve the above problems in the prior art, the utility model provides a switch machine holding force testing device, which can facilitate maintenance personnel to control the performance and wear of the holding connector, improve the holding force testing efficiency, and reduce manual operation costs.

[0005] The utility model adopts the following technical solutions:

[0006] A switch machine holding force testing device comprises a supporting base, a driving device, a force sensor and a force gauge; the driving device comprises a power assembly and a push-pull motion assembly, the power assembly is arranged on the supporting base, one end of the push-pull motion assembly is connected to the power assembly, and the other end is connected to a switch machine component to be tested, and is used to test the holding force of the switch machine component to be tested; one end of the force sensor is connected to the push-pull motion assembly or the switch machine component to be tested, and the other end is connected to the supporting base; the force gauge is arranged on the supporting base and connected to the force sensor.

[0007] Furthermore, the support base includes a platform bracket and a tooling bracket; the tooling bracket is arranged on the platform bracket; the power assembly is arranged at the first end of the tooling bracket; one end of the push-pull motion assembly is connected to the power assembly, and the other end is connected to the switch machine component to be tested, and a retaining frame is provided under the switch machine component to be tested; one end of the force sensor is connected to the push-pull motion assembly or the switch machine component to be tested, and the other end is connected to the second end of the tooling bracket; the force gauge is arranged on the tooling bracket and connected to the force sensor.

[0008] Furthermore, a fixing rod is provided in the middle of the tooling bracket; the retaining frame is adjacent to the fixing rod and connected to the fixing rod; the switch machine component to be detected is arranged in the retaining frame and connected to the push-pull motion assembly.

[0009] Furthermore, the power assembly includes a hydraulic oil tank and a hydraulic pump, the hydraulic oil tank is arranged at the first end of the tooling bracket, and the hydraulic pump is connected to the hydraulic oil tank; the push-pull motion assembly includes a hydraulic cylinder, one end of the hydraulic cylinder is connected to the hydraulic pump, and the other end is connected to the switch machine component to be tested, for testing the holding force of the switch machine component to be tested.

[0010] Furthermore, the driving device also includes a throttle valve; the hydraulic pump is connected to one end of the hydraulic cylinder through the throttle valve.

[0011] Furthermore, the force sensor is a push-pull force gauge sensor, and the plane shape of the push-pull force gauge sensor is "Z-like" type.

[0012] Furthermore, connecting components are symmetrically provided at both ends of the force sensor, one end of the force sensor is connected to the push-pull motion component or the switch machine component to be detected through the connecting component, and the other end is also connected to the second end of the tooling bracket through the connecting component.

[0013] Furthermore, it also includes a clamping assembly; the push-pull motion assembly is connected to the switch machine component to be detected through the clamping assembly; the connecting assembly at one end of the force sensor is also connected to the push-pull motion assembly or the switch machine component to be detected through the clamping assembly.

[0014] Furthermore, the dynamometer is a digital dynamometer.

[0015] Furthermore, the digital display force gauge is internally equipped with a CPU processor, a pressure detection module, a visual display module, an alarm feedback module and a record saving module.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model provides a switch machine holding force testing device, which can perform off-line holding force testing on a holding connector component (switch machine component to be tested) of an S700K switch machine, in particular to testing the forward or reverse sliding holding force between an operating plate and a brake plate.

[0018] The driving device of the utility model preferably uses a hydraulic drive mode, which has strong flexibility and controllability, can simulate the detection of the holding force of the coupling components under different conditions, and has the advantage of positive or reverse sliding test holding force. In addition, the utility model has the advantage of the force gauge intuitively displaying data, so that the test device can better adapt to the maintenance needs of the S700K switch machine, especially the test of the holding force of the core data operating panel.

[0019] The utility model has high test efficiency and preferably adopts a hydraulic drive mode for driving, which helps to reduce manual intervention, solves the problem of low test efficiency of manual hand-cranked driving in the past, and helps to improve test efficiency.

[0020] The utility model is based on a stable support base, integrates a force sensor, and flexibly uses a force gauge (feedback mechanism), which helps to improve test accuracy, better adapt to the maintenance needs of the S700K switch machine, and ensure that high test accuracy can be maintained under various working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The technology of the utility model is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0022] Figure 1 It is a three-dimensional schematic diagram of the first viewing angle of the switch holding force testing device of the utility model;

[0023] Figure 2 It is a three-dimensional schematic diagram of the tooling bracket of the utility model;

[0024] Figure 3 It is a three-dimensional schematic diagram of the platform bracket of the utility model;

[0025] Figure 4 This is a schematic diagram of the first embodiment of the driving device of the utility model;

[0026] Figure 5 It is a stereoscopic view of the fixing rod of the utility model from the first viewing angle;

[0027] Figure 6 It is a three-dimensional schematic diagram of the first viewing angle of the retaining frame of the utility model;

[0028] Figure 7 It is a schematic diagram of the connection components symmetrically arranged at both ends of the force sensor of the utility model;

[0029] Figure 8 It is a three-dimensional schematic diagram of the force measuring sensor of the utility model from the first viewing angle.

[0030] Reference numerals:

[0031] 1-support base; 11-platform bracket; 12-tool bracket; A-first end; B-second end;

[0032] 2-driving device; 21-power assembly; 211-hydraulic oil tank; 212-hydraulic pump; 22-push-pull motion assembly; 221-hydraulic cylinder; 23-throttle valve;

[0033] 3-force sensor; 4-force gauge; 5-connector; 6-holder; C-one end; D-other end; 61-positioning hole; 7-fixing rod; 71-threaded hole; 8-connecting assembly; 9-clamping assembly. DETAILED DESCRIPTION

[0034] The following will be combined with the embodiments and drawings to clearly and completely describe the concept, specific structure and technical effects of the utility model, so as to fully understand the purpose, scheme and effect of the utility model. It should be noted that the embodiments and features in the embodiments in this application can be combined with each other without conflict. The same reference numerals used throughout the drawings indicate the same or similar parts.

[0035] It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it can be directly fixed or connected to the other feature, or it can be indirectly fixed or connected to the other feature. In addition, the descriptions of up, down, left, right, etc. used in the present invention are only relative to the relative positional relationship of the components of the present invention in the accompanying drawings.

[0036] Reference Figures 1 to 8A switch machine holding force testing device comprises a supporting base 1, a driving device 2, a force sensor 3 and a force gauge 4; the driving device 2 comprises a power assembly 21 and a push-pull motion assembly 22, the power assembly 21 is arranged on the supporting base 1, one end of the push-pull motion assembly 22 is connected to the power assembly 21, and the other end is connected to the switch machine component to be tested, for testing the holding force of the switch machine component to be tested; one end of the force sensor 3 is connected to the push-pull motion assembly 22 or the switch machine component to be tested, and the other end is connected to the supporting base 1; the force gauge 4 is arranged on the supporting base 1 and connected to the force sensor 3.

[0037] Reference Figures 1 to 8 In one embodiment, the support base 1 includes a platform bracket 11 and a tooling bracket 12; the tooling bracket 12 is arranged on the platform bracket 11; the power assembly 21 is arranged at the first end A of the tooling bracket 12; one end of the push-pull motion assembly 22 is connected to the power assembly 21, and the other end is connected to the switch machine component to be tested, and a retaining frame 6 is provided under the switch machine component to be tested. The retaining frame 6 is a key component in the entire test device, which provides necessary support, connection and accurate positioning functions for the test; one end C of the force sensor 3 is connected to the push-pull motion assembly 22 or the switch machine component to be tested, and the other end D is connected to the second end B of the tooling bracket 12; the force gauge 4 is arranged on the tooling bracket 12 and connected to the force sensor 3.

[0038] Reference Figure 1 In one embodiment, the first end A is the left end; the second end B is the right end.

[0039] Reference Figures 1 to 3 In one embodiment, the platform support 11 is located directly below the entire test device, and a positioning bolt hole is opened on the upper working surface ( Figure 3 The fixture bracket 12 is fixed by the positioning bolt hole and the bolt assembly, thereby ensuring the firmness and safety of the support base 1. The utility model provides a stable support base 1 for the test device, which is conducive to the test device to carry out test work.

[0040] Reference Figure 1 In one embodiment, a fixing rod 7 is provided in the middle position of the tooling bracket 12; the retaining frame 6 is adjacent to the fixing rod 7 and connected to the fixing rod 7; the switch machine component to be detected is arranged in the retaining frame 6 and connected to the push-pull motion assembly 22.

[0041] Reference Figure 1 and Figure 5In one embodiment, the fixing rod 7 is a T-shaped fixing rod, and threaded holes 71 are symmetrically opened on the side surface of the T-shaped fixing rod. The T-shaped fixing rod is connected to the tooling bracket 12 through the threaded holes 71 on both sides, providing a reliable limiting mechanism for fixing the switch machine components to be tested (such as the operating plate and the brake plate) to facilitate offline testing of the holding force.

[0042] Reference Figure 1 In one embodiment, the retainer 6 is the core component of the entire test device. It has the advantages of excellent stability of a cylinder, and is provided with a positioning hole 61 for the introduction of the fixing rod 7, for the connection of the push-pull motion component 22, and for the connection of the connecting piece 5. Specifically, the bottom of the retainer 6 is designed to be placed vertically according to the positioning height, ensuring that the entire test device is not prone to tilting during operation; the top of the retainer 6 is provided with a positioning hole 61, which can be used to introduce the fixing rod 7, for fixing and accurately positioning the switch machine components to be tested, ensuring that their positions in the test are accurate and stable; the left side of the retainer 6 is connected to the push-pull motion component 22, and the right side can be connected to the connecting piece 5 to achieve connection with one end of the force sensor 3.

[0043] Reference Figure 1 In one embodiment, the power assembly 21 includes a hydraulic oil tank 211 and a hydraulic pump 212. The hydraulic oil tank 211 is arranged at the first end A of the tooling support 12, and the hydraulic pump 212 is connected to the hydraulic oil tank 211. The push-pull motion assembly 22 includes a hydraulic cylinder 221. One end of the hydraulic cylinder 221 is connected to the hydraulic pump 212, and the other end is connected to the switch machine component to be tested, and is used to test the holding force of the switch machine component to be tested. The hydraulic oil is extracted from the hydraulic oil tank 211 by the hydraulic pump 212 and pushed into the hydraulic cylinder 221 to perform the corresponding action. During the test, the power assembly 21 controls the hydraulic cylinder 221 to retract horizontally to the left, withdraw the clamping assembly 9, and then introduce the switch machine component to be tested (such as the retaining connector component) into the retaining frame 6, and connect the force sensor 3 at the other end; then, the power assembly 21 controls the hydraulic cylinder 221 to move horizontally to the right to connect the switch machine component to be tested; finally, the hydraulic cylinder 221 can be used to step forward to test the holding force of the switch machine component to be tested (wherein the forward stepping is the thrust), and the hydraulic cylinder 221 can also be used to step backward to test the holding force of the switch machine component to be tested (wherein the reverse stepping is the pulling force).

[0044] In one embodiment, the driving device 2 preferably adopts a hydraulic driving mode; the driving device 2 can be connected to a controller (such as a PLC) to automatically adjust the parameters of the test device and reduce the need for manual intervention. In addition, the utility model integrates a force sensor 3 and a force gauge 4 (feedback mechanism) in the test device to enable the test device to automatically adjust according to the test situation, so that the test device can better meet the maintenance needs of the S700K switch machine, especially in the condition of long-term testing, it can still maintain a high accuracy.

[0045] Reference Figure 1 In one embodiment, the driving device 2 also includes a throttle valve 3; the hydraulic pump 212 is connected to one end of the hydraulic cylinder 221 through the throttle valve 3; the throttle valve 23 can control the flow of the hydraulic oil in the driving device 2, change the horizontal movement speed of the hydraulic cylinder 221, and thus adjust the working pressure of the testing device; the throttle valve 23 can be used to adjust the speed of the oil inlet flow and the oil return flow.

[0046] Reference Figure 1 , Figure 7 and Figure 8 In one embodiment, the force sensor 3 is a push-pull force gauge sensor, and the plane shape of the push-pull force gauge sensor is "Z-shaped".

[0047] Reference Figure 1 , Figure 7 and Figure 8 In one embodiment, connecting components 8 are symmetrically provided at both ends of the force sensor 3. One end C of the force sensor 3 is connected to the push-pull motion component 22 or the switch machine component to be detected through the connecting component 8, and the other end D is also connected to the second end B of the tooling bracket 12 through the connecting component 8.

[0048] Reference Figure 1 and Figure 7 In one embodiment, the connecting component 8 is a connecting pin.

[0049] Reference Figure 1 In one embodiment, the testing device further comprises a clamping assembly 9; the right side of the push-pull motion assembly 22 is connected to the switch machine component to be tested through the clamping assembly 9; the connecting assembly 8 at one end C of the force sensor 3 is also connected to the push-pull motion assembly 22 or the switch machine component to be tested through the connecting piece 5 and the clamping assembly 9.

[0050] Reference Figure 1 and Figure 4In one embodiment, the clamping assembly 9 is a clamping plate; the clamping plate is provided with a pin hole; the left clamping plate is connected to the push-pull motion assembly 22 through the pin hole; the other clamping plate on the right is also connected to the connecting member 5 through its own pin hole. Specifically, the other clamping plate is connected to the connecting pin on one end of the force sensor 3 through the connecting member 5. The purpose of providing a clamping assembly 9 on each side is that the two clamping assemblies 9 can be used to fix the retaining coupling component of the S700K switch machine to ensure the stability and accuracy of the component during testing.

[0051] Reference Figure 1 In one embodiment, the force gauge 4 is a digital force gauge; the digital force gauge can convert the thrust or pull of the hydraulic cylinder 221 into an electrical signal so as to monitor and record the change of force, and is used to intuitively display the test value measured by the force sensor 3, thereby providing the operator with visual information of the test results.

[0052] Reference Figure 1 In one embodiment, the digital dynamometer is internally equipped with a CPU processor, a pressure detection module, a visual display module, an alarm feedback module and a record saving module; specifically, the digital dynamometer is mounted on the upper surface of the tooling bracket 12 and is connected to a force sensor 3 to measure, record and feedback thrust data during forward sliding, or to measure, record and feedback tension data during reverse sliding.

[0053] For other contents of the switch holding force testing device described in the utility model, please refer to the prior art and will not be described in detail here.

[0054] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Therefore, any modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A switch holding force testing device, characterized in that: It comprises a supporting base, a driving device, a force sensor and a force gauge; the driving device comprises a power assembly and a push-pull motion assembly, the power assembly is arranged on the supporting base, one end of the push-pull motion assembly is connected to the power assembly, and the other end is connected to the switch machine component to be tested, so as to test the holding force of the switch machine component to be tested; one end of the force sensor is connected to the push-pull motion assembly or the switch machine component to be tested, and the other end is connected to the supporting base; the force gauge is arranged on the supporting base and connected to the force sensor.

2. The switch machine holding force testing device according to claim 1, characterized in that: The support base includes a platform bracket and a tooling bracket; the tooling bracket is arranged on the platform bracket; the power assembly is arranged at the first end of the tooling bracket; one end of the push-pull motion assembly is connected to the power assembly, and the other end is connected to the switch machine component to be tested, and a retaining frame is provided under the switch machine component to be tested; one end of the force sensor is connected to the push-pull motion assembly or the switch machine component to be tested, and the other end is connected to the second end of the tooling bracket; the force gauge is arranged on the tooling bracket and connected to the force sensor.

3. The switch machine holding force testing device according to claim 2, characterized in that: A fixing rod is provided in the middle of the tooling bracket; the retaining frame is adjacent to the fixing rod and connected to the fixing rod; the switch machine component to be detected is arranged in the retaining frame and connected to the push-pull motion assembly.

4. The switch machine holding force testing device according to claim 2, characterized in that: The power assembly includes a hydraulic oil tank and a hydraulic pump, wherein the hydraulic oil tank is arranged at the first end of the tooling bracket, and the hydraulic pump is connected to the hydraulic oil tank; the push-pull motion assembly includes a hydraulic cylinder, one end of the hydraulic cylinder is connected to the hydraulic pump, and the other end is connected to the switch machine component to be tested, so as to test the holding force of the switch machine component to be tested.

5. The switch machine holding force testing device according to claim 4, characterized in that: The driving device also includes a throttle valve; the hydraulic pump is connected to one end of the hydraulic cylinder through the throttle valve.

6. The switch machine holding force testing device according to claim 1, characterized in that: The force sensor is a push-pull force gauge sensor, and the plane shape of the push-pull force gauge sensor is "Z-shaped".

7. The switch machine holding force testing device according to claim 2, characterized in that: The two ends of the force sensor are symmetrically provided with connecting components. One end of the force sensor is connected to the push-pull motion component or the switch machine component to be detected through the connecting component, and the other end is also connected to the second end of the tooling bracket through the connecting component.

8. The switch machine holding force testing device according to claim 7, characterized in that: It also includes a clamping assembly; the push-pull motion assembly is connected to the switch machine component to be detected through the clamping assembly; the connecting assembly at one end of the force sensor is also connected to the push-pull motion assembly or the switch machine component to be detected through the clamping assembly.

9. The switch machine holding force testing device according to any one of claims 1 to 8, characterized in that: The dynamometer is a digital dynamometer.

10. The switch machine holding force testing device according to claim 9, characterized in that: The digital display force gauge is internally equipped with a CPU processor, a pressure detection module, a visual display module, an alarm feedback module and a record saving module.

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