Abrasion-resistant experimental equipment for spring flocking of electric tail gate system

Abstract

The invention discloses a wear-resistant experiment device for spring flocking of an electric tail gate system, and relates to the technical field of spring processing, the wear-resistant experiment device comprises an experiment table and a motor, one end of the experiment table is connected with a fixing column, the fixing column is connected with a first mounting piece, the experiment table is connected with two parallel slide rails, and the slide rails are connected with a second mounting piece. The two sliding rails are connected with a sliding seat in a sliding mode, the side, close to the fixing column, of the sliding seat is connected with a second installation part, the motor is installed at the end, away from the fixing column, of the experiment table, and an output shaft of the motor is coaxially connected with a rotating disc. The spring is repeatedly stretched, in the stretching and contracting process of the spring, flocked fluff on the spring rubs with the friction material at the bottom of the movable plate, the friction condition of the spring in the actual working state is truly simulated, the authenticity and accuracy of the spring flocked wear resistance experiment are guaranteed, and experiment data are more accurate.

Description

Technical Field

[0001] The invention relates to the technical field of spring processing, in particular to wear-resistant experimental equipment for spring flocking of an electric tailgate system. Background Art

[0002] The principle of flocking is to use the physical property that like charges repel each other and opposite charges attract each other, so that the fluff carries a negative charge. The object to be flocked is placed under zero potential or grounding conditions. The fluff is attracted by the object with different potential and accelerates vertically to the surface of the object to be flocked. Since the object is coated with adhesive, the fluff is vertically stuck to the object.

[0003] The spring flocking wear test is an experiment to detect the wear resistance of the flock of flocked springs. After searching, the existing publication number CN211179387U proposes an efficient flocking wear tester, and two pressure devices are provided on the upper surface of the fuselage, one of which is connected to an inner diameter detection device, and the other is connected to an outer diameter detection device; the advantage of improving the test efficiency of the flocking is achieved. Although the above-mentioned flocking wear tester can efficiently detect the flock condition on the flocked spring, the spring is in a fixed state in the experimental method, and the test is carried out by repeatedly rubbing the moving friction part with the spring flock, while in actual conditions, the spring will only have friction contact with other objects during the working stretching and contraction stages. Therefore, the existing flocking wear test equipment cannot truly simulate the actual working friction conditions of the spring, resulting in insufficient authenticity and accuracy of the spring flocking wear test. For this reason, a wear test equipment for spring flocking of an electric tailgate system is proposed. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the prior art and to propose a wear-resistant test device for spring flocking of an electric tailgate system.

[0005] A wear-resistant experimental equipment for spring flocking of an electric tailgate system, comprising a test bench and a motor, wherein one end of the test bench is connected to a fixed column, the fixed column is connected to a first mounting piece, two parallel slide rails are connected to the test bench, the two slide rails are slidably connected to slide seats, a second mounting piece is connected to a side of the slide seat close to the fixed column, the motor is installed at an end of the test bench away from the fixed column, the output shaft of the motor is coaxially connected to a turntable, the eccentric position on the turntable is rotatably connected to a pull rod via a pin shaft, the other end of the pull rod is rotatably connected to the slide seat via a pin shaft, and a friction adjustment mechanism is provided on the test bench for adjusting experimental variables for controlling friction.

[0006] Preferably, the friction adjustment mechanism includes two mounting frames and a main shaft, the two mounting frames are installed on the experimental table and are respectively located directly above the fixed column and the slide rail, the two ends of the main shaft are rotatably connected to the two mounting frames, the main shaft is coaxially connected with a rotating drum, a plurality of pairs of fixed plates are connected to the rotating drum in a circular array, each pair of fixed plates is slidably connected with a movable plate, a plurality of cylinders are installed on the rotating drum, and the movable ends of the plurality of cylinders are respectively connected to the corresponding movable plates.

[0007] Preferably, two clamping rods are provided on both sides of each movable plate, and slots are provided at both ends of the movable plate. An insertion rod is connected to each of the clamping rods, and the insertion rod is slidably connected to the slot. Threaded rods are rotatably connected to each of the two ends of the movable plate, and a lifting block is connected to the threaded rods via threads. A first connecting piece is connected to the two insertion rods, and a second connecting piece is connected to both sides of the lifting block. A connecting rod is rotatably connected to the first connecting piece via a pin shaft, and an end of the connecting rod away from the first connecting piece is rotatably connected to the second connecting piece via a pin shaft, and a control button is coaxially connected to the upper end of the threaded rod.

[0008] Preferably, one end of the main shaft is coaxially connected to a rocking wheel, and the end of the main shaft close to the rocking wheel is coaxially connected to a positioning plate, a sliding groove is provided on the mounting frame close to the rocking wheel, a card block is slidably connected in the sliding groove, and a plurality of card slots are provided on the positioning plate in a circular array, and the shape of the card slot matches the card block.

[0009] Preferably, the number of the slots on the positioning plate is the same as the number of the movable plates.

[0010] Preferably, the first mounting member and the second mounting member have the same structure and are both made of nickel-chromium alloy.

[0011] Compared with the prior art, the present invention has the following advantages:

[0012] 1. The present invention uses a crank connecting rod composed of a turntable and a connecting rod to pull the slide seat to slide back and forth on the slide rail, thereby repeatedly stretching the spring. During the stretching and contraction of the spring, the flocking hair on the spring rubs against the friction material at the bottom of the movable plate, truly simulating the friction condition of the spring under actual working conditions, ensuring the authenticity and accuracy of the spring flocking wear-resistant experiment, and making the experimental data more accurate.

[0013] 2. When the friction material of the experiment needs to be replaced, the present invention first slides the card block out of the card slot to release the rotation restriction of the main shaft, then rotates the rocker to drive the rotating drum to rotate, rotates the rotating plate holding the new friction material to the lowest point, and then pushes the card block to slide into the new card slot to lock the rotating shaft, so that the friction material can be quickly replaced, thereby improving the experimental efficiency.

[0014] 3. During the experiment, for the same friction material, the distance between the rotating plate and the experimental spring can be controlled by changing the extension amount of the cylinder to adjust the friction pressure, thereby increasing the experimental variables and facilitating the acquisition of more experimental data. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the present invention.

[0016] Figure 2 It is a structural schematic diagram of the experimental platform part in the present invention.

[0017] Figure 3 It is a structural schematic diagram of the friction adjustment mechanism in the present invention.

[0018] Figure 4 for Figure 3 Enlarged schematic diagram at point A in the middle.

[0019] Figure 5 It is a schematic diagram of the structure of the movable plate and the clamping rod in the present invention.

[0020] Figure 6 for Figure 5 Enlarged schematic diagram at point A in the middle.

[0021] In the figure: 1 a test bench, 11 a fixed column, 12 a slide rail, 13 a slide seat, 14 a first mounting member, 15 a second mounting member, 16 a motor, 17 a turntable, 18 a pull rod, 2 a friction adjustment mechanism, 21 a mounting frame, 211 a slide slot, 22 a spindle, 221 a positioning plate, 222 a block, 223 a slot, 23 a rotating drum, 231 a fixed plate, 24 a cylinder, 25 a moving plate, 251 a clamping rod, 252 a slot, 253 a plug rod, 26 a threaded rod, 261 a lifting block, 262 a first connecting member, 263 a second connecting member, 264 a connecting rod, 265 a control button, 27 a rocker. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0023] Reference Figure 1-6As shown, a wear-resistant experimental equipment for spring flocking of an electric tailgate system includes a test bench 1 and a motor 16, one end of the test bench 1 is connected to a fixed column 11, the fixed column 11 is connected to a first mounting member 14, two parallel slide rails 12 are connected to the test bench 1, the two slide rails 12 are slidably connected to a slide seat 13, the slide seat 13 is connected to a second mounting member 15 on a side close to the fixed column 11, the motor 16 is installed on the end of the test bench 1 away from the fixed column 11, the output shaft of the motor 16 is coaxially connected to a turntable 17, the eccentric position on the turntable 17 is rotatably connected to a pull rod 18 through a pin shaft, the other end of the pull rod 18 is rotatably connected to the slide seat 13 through a pin shaft, and a friction adjustment mechanism 2 is provided on the test bench 1 for adjusting experimental variables for controlling friction, and the experimental variables include changes in friction material (friction coefficient) and changes in pressure of friction pressure.

[0024] In this embodiment, the friction adjustment mechanism 2 includes two mounting frames 21 and a main shaft 22. The two mounting frames 21 are installed on the experimental table 1 and are respectively located directly above the fixed column 11 and the slide rail 12. The two ends of the main shaft 22 are rotatably connected to the two mounting frames 21. A rotating drum 23 is coaxially connected to the main shaft 22. A plurality of pairs of fixed plates 231 are connected to the rotating drum 23 in a circular array. A movable plate 25 is slidably connected to each pair of fixed plates 231. A plurality of cylinders 24 are installed on the rotating drum 23. The movable ends of the plurality of cylinders 24 are respectively connected to the corresponding movable plates 25.

[0025] In this embodiment, two clamping rods 251 are provided on both sides of each movable plate 25, and slots 252 are provided at both ends of the movable plate 25. An insertion rod 253 is connected to each of the clamping rods 251, and the insertion rod 253 is slidably connected to the slot 252. Threaded rods 26 are rotatably connected to each of the two ends of the movable plate 25, and a lifting block 261 is connected to the threaded rod 26 through a thread. A first connecting member 262 is connected to the two insertion rods 253, and a second connecting member 263 is connected to both sides of the lifting block 261. A connecting rod 264 is rotatably connected to the first connecting member 262 through a pin shaft, and the end of the connecting rod 264 away from the first connecting member 262 is rotatably connected to the second connecting member 263 through a pin shaft, and a control button 265 is coaxially connected to the upper end of the threaded rod 26.

[0026] In this embodiment, one end of the main shaft 22 is coaxially connected to the rocking wheel 27, and the end of the main shaft 22 close to the rocking wheel 27 is coaxially connected to the positioning plate 221. A sliding groove 211 is provided on the mounting frame 21 close to the rocking wheel 27, and a block 222 is slidably connected in the sliding groove 211. A plurality of slots 223 are provided on the positioning plate 221 in a circular array, and the shape of the slots 223 matches the block 222.

[0027] In this embodiment, the number of the slots 223 on the positioning plate 221 is the same as the number of the movable plates 25, and each movable plate 25 has a corresponding slot 223. When the block 222 slides into the slot 223 to limit the positioning plate 221, the corresponding movable plate 25 rotates to the lowest point.

[0028] In this embodiment, the first mounting member 14 and the second mounting member 15 have the same structure and are both made of nickel-chromium alloy. The first mounting member 14 and the second mounting member 15 are in contact and friction with the hook of the spring for a long time when the entire device is in use. The nickel-chromium alloy has high strength and wear resistance, thereby improving the service life of the first mounting member 14 and the second mounting member 15.

[0029] The working process and principle of the present invention are as follows:

[0030] When in use, first hook the two ends of the spring to be tested on the first mounting member 14 and the second mounting member 15 respectively, at which time the spring is in a contracted state, and then wrap the various friction materials (such as iron sheets and plastic sheets) to be tested on the plurality of movable plates 25 respectively. When wrapping, place the two sides of the friction material in the gap between the movable plate 25 and the clamping rod 251, and then turn the control button 265 to drive the threaded rod 26 to rotate, and use the thread to control the lifting block 261 to rise, so that the connecting rod 264 pulls the clamping rods 251 on both sides toward the movable plate 25, and clamps the friction material by reducing the gap, and then turn the rocker 27 to drive the rotating drum 23 to rotate, and rotate the rotating plate 25 clamping the friction material required for the experiment to the lowest point. At this time, the positioning plate 221 The card slot 223 on it corresponds to the slide slot 211, so the card block 222 can be pushed to slide into the card slot 223, and the positioning plate 221 is limited, that is, the position locking of the movable plate 25 is completed, and then the cylinder 24 is turned on to push the movable plate 25 to move down so that the friction material contacts the spring, and finally the motor 16 is turned on to drive the turntable 17 to rotate, and the crank connecting rod composed of the turntable 17 and the connecting rod 18 pulls the slide seat 13 to slide back and forth on the slide rail 12, and the spring is repeatedly stretched. During the stretching and contraction process of the spring, the flocking hair on the spring rubs against the friction material at the bottom of the movable plate 25, which truly simulates the friction condition of the spring in the actual working state, ensures the authenticity and accuracy of the spring flocking wear resistance experiment, and makes the experimental data more accurate.

[0031] When replacing the friction material of the experiment, it is only necessary to slide the block 222 out of the slot 223 to release the rotation restriction of the main shaft 22, and then rotate the rocker 27 to drive the rotating drum 23 to rotate, and rotate the rotating plate 25 holding the new friction material to the lowest point, and then push the block 222 to slide into the new slot 223 to lock the rotating shaft 22, so that the friction material can be quickly replaced. At the same time, the friction material of the rotating plate that is not involved in the experiment can be clamped during the experiment, thereby improving the experimental efficiency.

[0032] For the same friction material, the distance between the rotating plate 25 and the experimental spring can be controlled by changing the extension amount of the cylinder 24 to adjust the friction pressure, thereby increasing the experimental variables and facilitating the acquisition of more experimental data.

[0033] It is known from common technical knowledge that the present invention can be implemented by other embodiments that do not deviate from its spirit or essential features. Therefore, the above disclosed embodiments are only illustrative in all respects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A wear-resistant test equipment for electric tailgate system spring flocking, characterized by: The invention comprises a test bench (1) and a motor (16), wherein one end of the test bench (1) is connected to a fixed column (11), the fixed column (11) is connected to a first mounting member (14), the test bench (1) is connected to two mutually parallel slide rails (12), the two slide rails (12) are slidably connected to a slide seat (13), the side of the slide seat (13) close to the fixed column (11) is connected to a second mounting member (15), the motor (16) is installed at one end of the test bench (1) away from the fixed column (11), the output shaft of the motor (16) is coaxially connected to a turntable (17), the eccentric position on the turntable (17) is rotatably connected to a pull rod (18) via a pin, the other end of the pull rod (18) is rotatably connected to the slide seat (13) via a pin, and the test bench (1) is provided with a friction adjustment mechanism (2) for adjusting experimental variables for controlling friction.

2. The wear-resistant test equipment for electric tailgate system spring flocking according to claim 1, characterized in that: The friction adjustment mechanism (2) comprises two mounting frames (21) and a main shaft (22). The two mounting frames (21) are mounted on the experimental table (1) and are respectively located directly above the fixed column (11) and the slide rail (12). The two ends of the main shaft (22) are rotatably connected to the two mounting frames (21). A rotating cylinder (23) is coaxially connected to the main shaft (22). A plurality of pairs of fixed plates (231) are connected to the rotating cylinder (23) in a circular array. A movable plate (25) is slidably connected to each pair of fixed plates (231). A plurality of cylinders (24) are mounted on the rotating cylinder (23). The movable ends of the plurality of cylinders (24) are respectively connected to the corresponding movable plates (25).

3. The wear-resistant test equipment for electric tailgate system spring flocking according to claim 2, characterized in that: Two clamping rods (251) are arranged on both sides of each movable plate (25), and slots (252) are provided at both ends of the movable plate (25). Each clamping rod (251) is connected with an insertion rod (253), and the insertion rod (253) is slidably connected with the slot (252). The two ends of the movable plate (25) are rotatably connected with threaded rods (26), and the threaded rods (26) are connected with lifting blocks (261) through threads. The two insertion rods (253) are connected with a first connecting member (262), and the two sides of the lifting blocks (261) are connected with a second connecting member (263). The first connecting member (262) is rotatably connected with a connecting rod (264) through a pin shaft, and the end of the connecting rod (264) away from the first connecting member (262) is rotatably connected with the second connecting member (263) through a pin shaft, and the upper end of the threaded rod (26) is coaxially connected with a control button (265).

4. The wear-resistant test equipment for electric tailgate system spring flocking according to claim 2, characterized in that: One end of the main shaft (22) is coaxially connected to a rocking wheel (27), and one end of the main shaft (22) close to the rocking wheel (27) is coaxially connected to a positioning plate (221). A sliding groove (211) is provided on the mounting frame (21) close to the rocking wheel (27), and a clamping block (222) is slidably connected in the sliding groove (211). A plurality of clamping grooves (223) are provided on the positioning plate (221) in a circular array, and the shape of the clamping groove (223) matches that of the clamping block (222).

5. The wear-resistant test equipment for electric tailgate system spring flocking according to claim 4, characterized in that: The number of the slots (223) on the positioning plate (221) is the same as the number of the movable plate (25).

6. The wear-resistant test equipment for electric tailgate system spring flocking according to claim 1, characterized in that: The first mounting member (14) and the second mounting member (15) have the same structure and are both made of nickel-chromium alloy.

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