Steering electric cylinder load test device

Abstract

The utility model provides a steering electric cylinder load test device which comprises a rack, symmetrically distributed sliding rails are arranged on the rack, a sliding table is arranged between the sliding rails in a sliding mode, connecting bases are arranged in the middles of the two sides of the sliding table, a sliding base is further arranged between the sliding rails in a sliding mode, and a sliding barrel is rotationally arranged on the sliding base through a rotating shaft. A placing plate is arranged on the upper surface of the sliding barrel, a first mounting base and a second mounting base are arranged on the sliding barrel through a distance adjusting module, and the distance adjusting module is used for adjusting the distance between the first mounting base and the second mounting base. According to the steering electric cylinder load test device provided by the utility model, during the load test of the steering electric cylinder, the installation state of the steering electric cylinder can be automatically adjusted while the steering electric cylinder to be subjected to the load test is rapidly and stably clamped and fixed, so that the device is convenient for workers to use.

Description

Technical Field

[0001] This utility model belongs to the field of testing technology for electric steering cylinders, and specifically relates to a load testing device for electric steering cylinders. Background Technology

[0002] An electric steering cylinder is an actuator that converts electrical energy into mechanical motion. It is widely used in various applications that require precise control of steering operations, especially in the electric power steering (EPS) systems of modern vehicles. Driven by an electric motor, it is usually used in conjunction with sensors and controllers to achieve precise control of steering angle, speed, and torque. In the production of electric steering cylinders, load testing equipment is required to perform load tests on the electric steering cylinders.

[0003] Existing power steering cylinder load testing devices simulate the force or torque applied to the power steering cylinder in actual use through the cooperation of guide wheels, traction ropes, and counterweights. The power steering cylinder to be tested is then installed in a designated position, with its telescopic end connected to the traction rope. The thrust and pull forces of the power steering cylinder are tested by adjusting its installation position and method. However, in actual use, the power steering cylinder needs to be disassembled and reassembled by personnel during thrust and pull force testing. This requires rotating the cylinder 180 degrees to adjust its position for testing the thrust or pull forces. This process is time-consuming, labor-intensive, and inconvenient to use. Utility Model Content

[0004] In view of this, this utility model addresses the shortcomings of the prior art by providing a steering electric cylinder load testing device. During the load test of the steering electric cylinder, it can quickly and stably clamp and fix the steering electric cylinder to be tested while automatically adjusting the installation state of the steering electric cylinder, making it convenient for operators to use.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a load testing device for a steering electric cylinder, including a frame, on which symmetrically distributed slide rails are arranged, a slide table is slidably arranged between the slide rails, a connecting seat is arranged in the middle of both sides of the slide table, a slide seat is also slidably arranged between the slide rails, a slide cylinder is rotatably arranged on the slide seat via a rotating shaft, a placement plate is arranged on the upper surface of the slide cylinder, and a mounting seat one and a mounting seat two are arranged on the slide cylinder via a spacing adjustment module. The spacing adjustment module is used to adjust the spacing between mounting seat one and mounting seat two; a buffer rubber pad is glued and fixed on the side of mounting seat one and mounting seat two near the slide cylinder.

[0006] As a further improvement of this utility model, the spacing adjustment module includes slide rods symmetrically slidably disposed inside the slide cylinder. A mounting base one is provided at the end of the left slide rod furthest from the slide cylinder, and a mounting base two is provided at the end of the right slide rod furthest from the slide cylinder. Symmetrically distributed support plates are disposed inside the slide cylinder, and adjusting screws are rotatably disposed in the middle of each support plate. The adjusting screws are threadedly connected to adjacent slide rods. A dual-axis motor is disposed in the middle of the slide cylinder, and the output shaft of the dual-axis motor is fixed to the adjacent adjusting screws via a coupling. A motor base is disposed on the lower surface of the slide seat, and a servo motor is disposed inside the motor base. The output shaft of the servo motor is fixed to the adjacent rotating shaft via a coupling. Multiple evenly distributed positioning holes are provided on both the front and rear sides of the frame, and the slide seat is fixed to the adjacent positioning holes via positioning bolts.

[0007] As a further improvement of this utility model, a support is provided on the upper surface of the frame. A rotating rod 1 is rotatably provided on the upper end of the support. A symmetrically distributed limiting wheel is fixedly sleeved on the left rotating rod 1, and a symmetrically distributed guide wheel 1 is fixedly sleeved on the right rotating rod 1. A symmetrically distributed support is provided on the support. A rotating rod 2 is rotatably provided between the supports. A symmetrically distributed guide wheel 2 is fixedly sleeved on the rotating rod 2. A traction rope is provided between the limiting wheel, guide wheel 1, and guide wheel 2 located in the same vertical plane. The left end of the traction rope is connected and fixed to the counterweight, and the right end of the traction rope is connected and fixed to the slide.

[0008] As a further improvement of this utility model, the frame is provided with symmetrically distributed guide rails, and a sliding plate is slidably arranged between the guide rails, with the upper surface of the sliding plate contacting the lower side of the counterweight.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0010] Firstly, the output shafts of the dual-axis motors drive the adjusting screws connected to them to rotate, causing mounting base one and mounting base two to move closer together, thus quickly and stably installing and fixing the steering electric cylinder.

[0011] Secondly, the output shaft of the servo motor drives the rotating shaft connected to it to rotate, which causes the mounting plate of the electric steering cylinder to rotate 180 degrees, making it easy to quickly test the thrust and pull of the electric steering cylinder without disassembling it.

[0012] Third, the edge of the limiting wheel matches the U-shaped groove of the guide wheel, so that the traction rope is limited by the limiting wheel and the guide wheel when it moves between the limiting wheel and the guide wheel, which allows the traction rope to move stably between the limiting wheel and the guide wheel.

[0013] Fourth, the buffer rubber pad can effectively buffer the outside of the electric steering cylinder when clamping and fixing it to be tested, so that the electric steering cylinder can make flexible contact with mounting base one and mounting base two, which can effectively avoid damage to the electric steering cylinder during the test. Attached Figure Description

[0014] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the internal cross-sectional structure of this utility model;

[0017] Figure 3 This is an enlarged structural diagram of point A in this utility model;

[0018] Figure 4 This is a schematic diagram of the planar structure of this utility model.

[0019] In the diagram: 101, frame; 102, guide rail; 103, sliding plate; 104, counterweight; 105, hydraulic rod; 106, rotating rod one; 107, guide wheel one; 108, limit wheel; 109, support; 110, rotating rod two; 111, guide wheel two; 112, traction rope; 201, slide rail; 202, slide table; 203, positioning hole; 204, connecting seat; 205, sliding seat; 206, motor seat; 207, servo motor; 208, slide cylinder; 209, placement plate; 210, slide rod; 211, mounting seat one; 212, mounting seat two; 213, support plate; 214, dual-axis motor; 215, adjusting screw. Detailed Implementation

[0020] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0021] like Figure 2 , 4As shown, the device includes a frame 101, on which symmetrically distributed slide rails 201 are provided. A slide table 202 is slidably arranged between the slide rails 201. A connecting seat 204 is provided at the center of both sides of the slide table 202. A slide seat 205 is also slidably arranged between the slide rails 201. A slide cylinder 208 is rotatably arranged on the slide seat 205 via a rotating shaft. A placement plate 209 is provided on the upper surface of the slide cylinder 208. A mounting seat 1 211 and a mounting seat 212 are provided on the slide cylinder 208 via a spacing adjustment module. The spacing adjustment module is used to adjust the spacing between the mounting seat 1 211 and the mounting seat 212.

[0022] like Figure 2 , 3 As shown, the spacing adjustment module includes slide rods 210 symmetrically slidably disposed inside the slide cylinder 208. A mounting base 211 is provided at the end of the left slide rod 210 furthest from the slide cylinder 208, and a mounting base 212 is provided at the end of the right slide rod 210 furthest from the slide cylinder 208. Symmetrically distributed support plates 213 are disposed inside the slide cylinder 208. Adjusting screws 215 are rotatably disposed in the middle of each support plate 213. The adjusting screws 215 are threadedly connected to adjacent slide rods 210. The middle of the slide cylinder 208... A dual-axis motor 214 is provided, and the output shaft of the dual-axis motor 214 is fixed to the adjacent adjusting screw 215 by a coupling; a motor seat 206 is provided on the lower surface of the sliding seat 205, and a servo motor 207 is provided inside the motor seat 206, and the output shaft of the servo motor 207 is fixed to the adjacent rotating shaft by a coupling; multiple evenly distributed positioning holes 203 are provided on both the front and rear sides of the frame 101, and the sliding seat 205 is connected and fixed to the adjacent positioning holes 203 by positioning bolts.

[0023] like Figure 1 , 2 As shown, a support is provided on the upper surface of the frame 101. A symmetrically distributed rotating rod 106 is rotatably mounted on the upper end of the support. A symmetrically distributed limiting wheel 108 is fixedly mounted on the left rotating rod 106, and a symmetrically distributed guide wheel 107 is fixedly mounted on the right rotating rod 106. A symmetrically distributed support 109 is provided on the support. A rotating rod 110 is rotatably mounted between the supports 109. A symmetrically distributed guide wheel 111 is fixedly mounted on the rotating rod 110. A traction rope 112 is provided between the limiting wheel 108, the guide wheel 107, and the guide wheel 111 located in the same vertical plane. The left end of the traction rope 112 is connected and fixed to the counterweight 104, and the right end of the traction rope 112 is connected and fixed to the slide table 202. The limiting wheel 108 is fitted with the adjacent guide wheel 107, and the edge of the limiting wheel 108 matches the U-shaped groove of the guide wheel 107.

[0024] like Figure 1 , 4As shown, the frame 101 is provided with symmetrically distributed guide rails 102, and a sliding plate 103 is slidably arranged between the guide rails 102. The upper surface of the sliding plate 103 is in contact with the lower side of the counterweight 104. The frame 101 is provided with symmetrically distributed hydraulic rods 105, and the telescopic ends of the hydraulic rods 105 are all connected and fixed to the sliding plate 103.

[0025] During use, the sliding seat 205 is moved to slide between the slide rails 201 to adjust the position of the sliding seat 205. Then, the bolts are tightened with external tools to fix the position of the sliding seat 205 between the sliding seat 205 and the adjacent positioning hole 203.

[0026] When it is necessary to test the pulling force of the electric steering cylinder: place the electric steering cylinder on the placement plate 209, and then drive the adjusting screw 215 connected to it to rotate by the output shaft of the dual-axis motor 214. By adjusting the thread relationship between the adjusting screw 215 and the slide rod 210, the slide rods 210 on both sides are driven to move closer together, thereby driving the mounting base 1 211 and mounting base 212 to move closer together, so as to quickly and stably install and fix the electric steering cylinder. At this time, the telescopic end of the electric steering cylinder passes through the clearance on the mounting base 1 211, so that the telescopic end of the electric steering cylinder extends to the maximum value. Then, the telescopic end of the electric steering cylinder is connected and fixed to the connecting seat 204 on the slide table 202.

[0027] The extension end of the hydraulic rod 105 drives the sliding plate 103 to slide downward between the guide rails 102, so that the traction rope 112 between the counterweight 104 and the slide table 202 is tightened.

[0028] The steering electric cylinder is activated, causing the telescopic end of the steering electric cylinder to drive the slide table 202 connected to it to slide between the slide rails 201. This causes the telescopic end of the steering electric cylinder to drive the slide table 202 to pull the counterweight 104 upward through the traction rope 112, thereby enabling the testing of the pulling force of the steering electric cylinder.

[0029] When it is necessary to test the thrust of the electric steering cylinder: the extension end of the hydraulic rod 105 drives the sliding plate 103 to slide upward between the guide rails 102, so that the traction rope 112 between the counterweight 104 and the slide table 202 is relaxed.

[0030] Disconnect the telescopic end of the electric steering cylinder from the connecting seat 204 on the slide 202, then slide the slide 202 out from the left side of the slide rail 201 and remove it, then slide it in from the right side of the slide rail 201 to adjust the position of the slide 202 so that the telescopic end of the electric steering cylinder retracts to its maximum value.

[0031] The output shaft of the servo motor 207 drives the rotating shaft connected to it to rotate, causing the rotating shaft to rotate the mounting plate 209 on which the steering electric cylinder is installed by 180 degrees, and then the telescopic end of the steering electric cylinder is connected and fixed to the connecting seat 204 on the slide table 202.

[0032] The extension end of the hydraulic rod 105 drives the sliding plate 103 to slide downward between the guide rails 102, so that the traction rope 112 between the counterweight 104 and the slide table 202 is tightened.

[0033] The steering electric cylinder is activated, causing the telescopic end of the steering electric cylinder to drive the slide table 202 connected to it to slide between the slide rails 201. This causes the telescopic end of the steering electric cylinder to drive the slide table 202 to pull the counterweight 104 upward through the traction rope 112, thereby enabling the testing of the thrust of the steering electric cylinder.

[0034] During the test, because the limiting wheel 108 is set to cooperate with the adjacent guide wheel 107, the edge of the limiting wheel 108 is located in the U-shaped groove of the guide wheel 107, so that the traction rope 112 is limited by the limiting wheel 108 and the guide wheel 107 when it moves between the limiting wheel 108 and the guide wheel 107, which allows the traction rope 112 to move stably between the limiting wheel 108 and the guide wheel 107.

[0035] According to another embodiment of the present invention, such as Figure 2 , 3 As shown, both mounting base 1 211 and mounting base 212 have cushioning rubber pads glued and fixed on the side near the slide cylinder 208. The cushioning rubber pads on mounting base 1 211 and mounting base 212 effectively cushion the outside of the steering electric cylinder when clamping and fixing it to be tested, ensuring flexible contact between the steering electric cylinder and mounting base 1 211 and mounting base 212, effectively preventing damage to the steering electric cylinder during testing.

[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A load testing device for an electric steering cylinder, comprising a frame (101), characterized in that: The frame (101) is provided with symmetrically distributed slide rails (201), and slide tables (202) are slidably arranged between the slide rails (201). Connecting seats (204) are provided in the middle of both sides of the slide tables (202). Slide seats (205) are also slidably arranged between the slide rails (201). A slide cylinder (208) is rotatably arranged on the slide seat (205) via a rotating shaft. A placement plate (209) is provided on the upper surface of the slide cylinder (208). Mounting seat one (211) and mounting seat two (212) are provided on the slide cylinder (208) via a spacing adjustment module. The spacing adjustment module is used to adjust the spacing between mounting seat one (211) and mounting seat two (212).

2. The steering electric cylinder load testing device as described in claim 1, characterized in that: The spacing adjustment module includes slide rods (210) symmetrically slidably disposed inside the slide cylinder (208). The left end of the slide rod (210) away from the slide cylinder (208) is provided with mounting seat one (211), and the right end of the slide rod (210) away from the slide cylinder (208) is provided with mounting seat two (212). The slide cylinder (208) is provided with symmetrically distributed support plates (213). Each support plate (213) is rotatably provided with an adjusting screw (215) in the middle. The adjusting screw (215) is threadedly connected to the adjacent slide rod (210). A dual-axis motor (214) is provided in the middle of the slide cylinder (208). The output shaft of the dual-axis motor (214) is fixed to the adjacent adjusting screw (215) by a coupling.

3. The steering electric cylinder load testing device as described in claim 1, characterized in that: The lower surface of the sliding seat (205) is provided with a motor seat (206), and a servo motor (207) is provided inside the motor seat (206). The output shaft of the servo motor (207) is fixed to the adjacent rotating shaft by a coupling.

4. The load testing device for the electric steering cylinder as described in claim 1, characterized in that: The frame (101) has multiple evenly distributed positioning holes (203) on both the front and rear sides. The sliding seat (205) is fixed to the adjacent positioning holes (203) by positioning bolts.

5. The load testing device for the electric steering cylinder as described in claim 1, characterized in that: The upper surface of the frame (101) is provided with a support. The upper end of the support is rotatably provided with symmetrically distributed rotating rods (106). The left rotating rod (106) is fixedly fitted with symmetrically distributed limiting wheels (108). The right rotating rod (106) is fixedly fitted with symmetrically distributed guide wheels (107). The support is provided with symmetrically distributed supports (109). Rotating rods (110) are rotatably arranged between the supports (109). The rotating rods (110) are fixedly fitted with symmetrically distributed guide wheels (111). Traction ropes (112) are provided between the limiting wheels (108), guide wheels (107) and guide wheels (111) located in the same vertical plane. The left end of the traction ropes (112) is connected and fixed to the counterweight (104), and the right end of the traction ropes (112) is connected and fixed to the slide (202).

6. The load testing device for the electric steering cylinder as described in claim 5, characterized in that: The frame (101) is provided with symmetrically distributed guide rails (102), and a sliding plate (103) is slidably arranged between the guide rails (102). The upper surface of the sliding plate (103) is in contact with the lower side of the counterweight (104).

7. The load testing device for the electric steering cylinder as described in claim 1, characterized in that: The frame (101) is provided with symmetrically distributed hydraulic rods (105), and the telescopic ends of the hydraulic rods (105) are all connected and fixed to the sliding plate (103).

8. The load testing device for the electric steering cylinder as described in claim 1, characterized in that: Both mounting base one (211) and mounting base two (212) have a buffer rubber pad glued and fixed on the side near the slide cylinder (208).

Images