Tow seat support test fixture

Abstract

The utility model relates to the technical field of traction seat performance test equipment, especially to a kind of traction seat support test tool, it includes test platform, two supports are installed in parallel on the top surface of test platform, pin shaft is installed on support, one loading arm is provided above two supports, loading arm is connected with pin shaft by connecting mechanism, one of the supports is below the end of loading arm, another support is below the middle of loading arm, force element for driving loading arm to move away from test platform direction is installed at the end of loading arm away from support, force element is matched with force sensor.The traction seat support test tool of the utility model can replace the performance test of support of traction seat main body, effectively save production cost;The test tool is easy to operate, effectively reduces the working strength of tester.

Description

Technical Field

[0001] This utility model relates to the technical field of traction seat performance testing equipment, and in particular to a traction seat support testing fixture. Background Technology

[0002] The traction seat is assembled from two parts, the main body and the support, via pins. When the traction seat bears a load, the force is transmitted to the pins on both sides through reinforcing ribs, and then to the corresponding supports through the pins on both sides. Currently, both the performance verification of the assembly (traction seat) and the sub-assembly (support) uses traditional testing methods, that is, testing the assembly consisting of the main body and the support. However, the main body accounts for 80% of the cost of the traction seat, which is a significant waste of resources and increases the workload of the testers. Therefore, how to reduce the cost of sub-assembly (support) performance testing while ensuring test results is a key research topic in this field. Utility Model Content

[0003] In order to solve the problems existing in the prior art, the present invention provides a traction seat support test fixture.

[0004] The present invention provides a traction seat support testing fixture with the following technical solution:

[0005] A test fixture for a traction seat support includes a test platform. Two supports are mounted side by side on the top surface of the test platform, and pins are installed on the supports. A loading arm is arranged above the two supports and is connected to the pins through a connecting mechanism. One support is located below the end of the loading arm, and the other support is located below the middle of the loading arm. A force-applying component is installed at the end of the loading arm away from the support to drive the loading arm to move away from the test platform. The force-applying component is in conjunction with a force sensor.

[0006] By adopting the above technical solution, this fixture simulates the performance testing of the support during trailer rollover. The main observation indices are the values ​​displayed by the force sensor and the deformation of the support measured by the dial indicator. When the force-applying component is working, the loading arm applies an upward pulling force to the support and pin near the cylinder through the connecting mechanism, and applies a downward pressure to the support and pin away from the cylinder through the connecting mechanism, thereby simulating the force situation of the support and pin during trailer rollover. When the force sensor displays the value required by the design, the deformation of the support can be observed by the dial indicator. This fixture can replace the main body of the towing seat for support performance testing, effectively saving production costs. The testing fixture is easy to operate and effectively reduces the workload of the testers.

[0007] Preferably, the force-applying component is installed below the loading arm, and the force sensor is a pressure sensor installed between the loading arm and the force-applying component.

[0008] Preferably, the force-applying component is a cylinder.

[0009] Preferably, the support is installed on the test platform by fixing bolts.

[0010] Preferably, the connecting mechanism includes two support plates vertically arranged on the left and right sides of the support, a pin shaft vertically passing through the two support plates, a support plate fixedly installed between the top of the two support plates, an M-shaped plate fixedly installed between the bottom surface of the support plate and the side wall of the two support plates, the M-shaped plate being located above the support, and a side plate vertically arranged on the front and rear sides of the support, the bottom of the side plate being fixedly installed on the support plate and the support plate, and the top of the side plate being fixedly installed on the loading arm.

[0011] Preferably, the bottom of the side plate is welded and fixed to the support plate and the tray, and the top of the side plate is connected to the loading arm by connecting bolts.

[0012] Preferably, the pin end is fitted with a washer that fits against the outer wall of the support plate, and the pin end is also threaded with a nut that fits tightly against the washer.

[0013] Preferably, the nut is a slotted nut, and a cotter pin is also provided at the end of the pin to restrict the rotation of the slotted nut. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the traction seat support test fixture according to an embodiment of the present utility model.

[0015] Figure 2 yes Figure 1 An exploded view of the central support, pin, and connecting mechanism after assembly.

[0016] Explanation of reference numerals in the attached drawings: 1. Test platform; 2. Support; 20. Fixing bolt; 3. Pin; 4. Loading arm; 5. Connecting mechanism; 50. Support plate; 51. Support plate; 52. M-shaped plate; 53. Side plate; 54. Connecting bolt; 55. Washer; 56. Slotted nut; 57. Cotter pin; 6. Force-applying component; 7. Force sensor. Detailed Implementation

[0017] The following combination Figures 1-2 The present invention will be described in further detail below.

[0018] This utility model discloses a testing fixture for a towing seat support, which simulates a performance test of the support 2 when a trailer overturns. (Refer to...) Figure 1 and Figure 2The traction seat support test fixture includes a test platform 1. Two supports 2 are arranged side by side on the top surface of the test platform 1. The supports 2 are fixed to the test platform 1 by fixing bolts 20. A pin 3 is passed through the supports 2. A loading arm 4 is arranged above the two supports 2. One support 2 is located directly below the middle of the loading arm 4, and the other support 2 is located directly below the end of the loading arm 4. The loading arm 4 and the pin 3 are connected by a connecting mechanism 5.

[0019] The connecting mechanism 5 includes two support plates 50 vertically arranged on the left and right sides of the support 2. A pin 3 is vertically inserted through the two support plates 50. A support plate 51 is welded and fixed between the tops of the two support plates 50. An M-shaped plate 52 is welded and fixed between the bottom surface of the support plate 51 and the sides of the two support plates 50. The M-shaped plate 52 is located above the support 2. A side plate 53 is vertically arranged on the front and rear sides of the support 2. The bottom of the side plate 53 is welded and fixed to the support plate 50 and the support plate 51. The top of the side plate 53 is installed on the loading arm 4 by a plurality of connecting bolts 54 arranged in a matrix.

[0020] A washer 55 is fitted onto the end of the pin 3, and the washer 55 is fitted against the outer wall of the support plate 50. A slotted nut 56 is also threaded onto the end of the pin 3, and the slotted nut 56 abuts against the washer 55. The slotted nut 56 is restricted from rotation by a cotter pin 57 passing through the end of the pin 3. A force-applying component 6 for lifting the loading arm 4 is vertically arranged below the end away from the two supports 2. In this embodiment, the force-applying component 6 is a cylinder. A force sensor 7 for detecting the lifting force is also installed between the force-applying component 6 and the loading arm 4. In this embodiment, the force sensor 7 is a pressure sensor.

[0021] The implementation principle of the towing seat support test fixture of this utility model embodiment is as follows: This fixture simulates the performance test of the support 2 when the trailer rolls over. The main observation indexes are the lifting force displayed by the force sensor 7 and the deformation of the support 2 measured by the dial indicator. When the cylinder lifts, the loading arm 4 applies an upward pulling force to the support 2 and pin 3 near the cylinder through the connecting bolt 54, side plate 53, and support plate 50, and applies a downward pressure to the support 2 and pin 3 away from the cylinder through the support plate 51, support plate 50, and M-shaped plate 52, thereby simulating the force on the support 2 and pin 3 during the trailer rollover. When the cylinder reaches the lifting force required for the test, the deformation of the support 2 can be observed by the dial indicator.

[0022] The traction seat support test fixture of this utility model embodiment can replace the traction seat body to conduct performance tests on the support 2, effectively saving production costs; the test fixture is easy to operate and effectively reduces the workload of the testers.

[0023] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A testing fixture for a traction seat support, characterized in that: The test platform (1) includes two supports (2) mounted side by side on the top surface of the test platform (1). A pin (3) is mounted on the support (2). A loading arm (4) is set above the two supports (2). The loading arm (4) is connected to the pin (3) through a connecting mechanism (5). One support (2) is located below the end of the loading arm (4), and the other support (2) is located below the middle of the loading arm (4). A force-applying component (6) is installed at the end of the loading arm (4) away from the support (2) to drive the loading arm (4) to move away from the test platform (1). The force-applying component (6) is in conjunction with a force sensor (7).

2. The traction seat support test fixture according to claim 1, characterized in that: The force-applying component (6) is installed below the loading arm (4), and the force sensor (7) is a pressure sensor installed between the loading arm (4) and the force-applying component (6).

3. The traction seat support test fixture according to claim 2, characterized in that: The force-applying component (6) is a cylinder.

4. The traction seat support test fixture according to claim 1, characterized in that: The support (2) is installed on the test platform (1) by fixing bolts (20).

5. The traction seat support test fixture according to any one of claims 1-4, characterized in that: The connecting mechanism (5) includes two support plates (50) vertically arranged on the left and right sides of the support (2), a pin (3) vertically passing through the two support plates (50), a support plate (51) fixedly installed between the tops of the two support plates (50), an M-shaped plate (52) fixedly installed between the bottom surface of the support plate (51) and the side wall of the two support plates (50), the M-shaped plate (52) is located above the support (2), and a side plate (53) is vertically arranged on the front and rear sides of the support (2), the bottom of the side plate (53) is fixedly installed on the support plate (50) and the support plate (51), and the top of the side plate (53) is fixedly installed on the loading arm (4).

6. The traction seat support test fixture according to claim 5, characterized in that: The bottom of the side plate (53) is welded and fixed to the support plate (50) and the support plate (51), and the top of the side plate (53) is connected to the loading arm (4) by connecting bolts (54).

7. The traction seat support test fixture according to claim 5, characterized in that: The pin (3) end is fitted with a washer (55) that fits against the outer wall of the support plate (50), and the pin (3) end is also threaded with a nut that fits tightly against the washer (55).

8. The traction seat support test fixture according to claim 7, characterized in that: The nut is a slotted nut (56), and the end of the pin (3) is also provided with a cotter pin (57) to restrict the rotation of the slotted nut (56).

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