Engine cover lifting rod test bench
By designing a hood lifting rod test bench containing support frames, testing mechanisms and protective mechanisms, the problem of existing equipment requiring a specialized test bench for each vehicle model is solved, efficient and accurate testing is achieved, reducing cost and complexity, and improving safety.
Patent Information
- Application Number
- CN202421532070.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-01
- Publication Date
- 2025-05-02
- Estimated Expiration
- 2034-07-01
AI Technical Summary
Existing automotive hood/rear tailgate opening and closing performance testing equipment requires the design and manufacture of specialized experimental benches for each vehicle model, adding to the complexity and cost of the equipment and the test process is time-consuming and complex.
Design a hood lift rod test bench, including a support frame, a test mechanism and a protective mechanism. The test mechanism uses electric push rods to simulate the hood lift rod, laser range measuring instruments and laser reflectors to detect the telescopic length of the push rod, and the support assembly and C-type bracket adjust the position of the electric push rod, simulating the lifting time and speed at different positions. The protective mechanism prevents the test board from falling and improves safety.
Through this test bench, the performance of the hood lifting rods of different models can be efficiently simulated and tested, improve the accuracy and efficiency of testing, reduce the complexity and cost of equipment, and improve safety.
Smart Images
Figure CN222825247U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of a test bench for testing a hood lifting rod, in particular to a test bench for testing a hood lifting rod. Background Art
[0002] The car hood / tailgate opening and closing simulation test bench is a device used to test and verify the opening and closing performance of the car hood and tailgate. This device can simulate various conditions in actual use, including different ambient temperatures, humidity, pressures, etc., as well as different opening and closing speeds and forces.
[0003] At present, the application of this equipment in the automobile manufacturing industry has been very extensive. Many automobile manufacturers use this equipment to test their products to ensure their performance and quality. In addition, some automobile design companies and research institutions also use this equipment to carry out related research and development. However, although the use of this equipment has been very extensive, its development still faces some challenges. First, due to the different design and manufacturing processes of automobile hoods and tailgates, it is necessary to design and manufacture a special test bench for each model, which undoubtedly increases the complexity and cost of the equipment. Secondly, since the opening and closing performance of automobile hoods and tailgates is affected by many factors, a large number of experiments and data analysis are required, which is also a very time-consuming and complicated task. Therefore, a hood lifting rod test bench is proposed. Utility Model Content
[0004] The utility model aims to provide a hood lifting rod test bench to solve the problems raised in the above background technology.
[0005] To achieve the above object, the utility model provides the following technical solutions: a hood lifting rod test bench, comprising a support frame, a handle, an anti-slip sleeve and four universal wheels, a testing mechanism is arranged above the support frame, and a protective mechanism is arranged on the surface of the support frame;
[0006] The testing mechanism comprises a testing assembly and a supporting assembly;
[0007] The test assembly is located inside the support assembly;
[0008] The test assembly includes an experimental board, a laser distance measuring instrument and a laser reflector. A fixing hole is provided through the top surface of the experimental board. Two electric push rods are provided below the experimental board. The two electric push rods are symmetrically arranged. A hook is installed on the bottom surface of the experimental board. The laser distance measuring instrument is located at the rear side of the output rod of the electric push rod.
[0009] The supporting assembly includes a connecting plate, the top surface of the connecting plate is hinged to the bottom surfaces of two electric push rods, a C-shaped bracket is arranged above the electric push rod, a connecting frame is arranged on the outer side of the left end of the experimental board, a rotating rod is arranged inside the connecting frame, a supporting plate is arranged on the inner side of the C-shaped bracket, the top end surface of the electric push rod output rod is hinged to the bottom surface of the support plate, and the laser reflector is located on the left side of the connecting plate.
[0010] Preferably, the front and rear end faces of the connecting plate are fixedly connected to the inner side face of the supporting frame, the inner side face of the connecting frame is fixedly connected to the outer side face of the supporting frame, the rotating rod is fixedly passed through the front side face of the experimental board and extends to the rear side of the experimental board, the front and rear end faces of the rotating rod are rotatably connected to the inner side face of the connecting frame through a bearing seat, and the rotating rod facilitates the rotation of the experimental board.
[0011] Preferably, a first bolt is provided on the inner side of the C-shaped bracket, and the left end face thread of the first bolt passes through the right side of the C-shaped bracket, the left side of the experimental board and the inner wall of the fixing hole and extends to the left side of the experimental board, so as to facilitate moving the C-shaped bracket to different positions on the experimental board.
[0012] Preferably, the inner wall of the support plate is threadedly connected to the inner wall of the C-shaped bracket by a second bolt, the rear side of the laser rangefinder is fixedly connected to the inner side of the C-shaped bracket, and the right side of the laser reflector is fixedly connected to the left side of the connecting plate. The laser rangefinder and the laser reflector can measure the actual telescopic length of the electric push rod output rod, and use the distance output by the built-in software chip of the electric push rod output rod as a reference.
[0013] Preferably, the top surfaces of the four universal wheels are fixedly connected to the top surface of the support frame, and the universal wheels can drive the support frame to move.
[0014] Preferably, the right side of the handle is fixedly connected to the left side of the support frame, and the anti-slip sleeve is arranged on the surface of the handle. The handle can push the support frame, and the protective sleeve can prevent the handle from slipping.
[0015] Preferably, the protection mechanism includes a protection block, a sliding groove is formed on the top surface of the right side of the support frame, the bottom end surface of the protection block slides through the top surface of the support frame and extends into the inside of the sliding groove, the bottom surface of the protection block is fixedly connected with a sliding rod, the bottom surface of the inner bottom of the sliding groove is fixedly connected with a sliding cylinder, the bottom end surface of the sliding rod slides through the top surface of the sliding cylinder and extends into the inside of the sliding cylinder, a spring is sleeved on the surface of the sliding cylinder, the bottom end surface of the spring is fixedly connected to the bottom surface of the inner bottom of the sliding groove, and the top end surface of the spring is fixedly connected to the bottom surface of the protection block. The protection block can prevent the user's fingers from being pressed during the falling of the experimental board.
[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: through the test mechanism, the test assembly uses an electric push rod to simulate the hood lifting rod, the weights hung on the test board and the hook simulate the hood, the electric push rod output rod drives the lifting of the test board to model the opening and closing actions of the test door, and the laser rangefinder and the laser reflector are used to detect the compression and elongation time of the electric push rod output rod, the lifting time and speed brought by different lifting angles of the test board, etc., to optimize the product design of the hood lifting rod, and at the same time, the weights are hung on the hook to increase the weight of the test board, so that the experiment can be equipped with doors of different weights according to different car models with counterweights. , to collect the tensile and compression test data of different doors on the electric push rod, the support component supports the experimental component, and uses the position change of the C-shaped bracket to adjust the position of the electric push rod output rod, thereby simulating the lifting time and speed of the hood lifting rod at different positions on the door, thereby improving the accuracy and efficiency of the test bench for the hood lifting rod test; through the protection mechanism, the protection block prevents the violent collision caused by the fall of the experimental plate, avoids the squeezing of fingers on the support frame, and improves the safety effect of the experimental bench; through the equipped universal wheels and handles, the mobile support frame can be operated by one person to realize the position movement of the test bench. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is the overall main stereoscopic view of the utility model;
[0018] Figure 2 It is a left-side stereoscopic view of the entire utility model;
[0019] Figure 3 This is a partial main stereoscopic diagram of the experimental board of the utility model;
[0020] Figure 4 This is a front cutaway perspective view of the C-type bracket of the utility model;
[0021] Figure 5 It is a sectional perspective view of the left side of the rotating rod of the utility model;
[0022] Figure 6 It is a partial front cutaway stereoscopic view of the protective block of the utility model.
[0023] In the figure: support frame 1, test mechanism 2, experimental board 201, connecting plate 202, electric push rod 203, connecting frame 204, rotating rod 205, C-shaped bracket 206, support plate 207, laser distance meter 208, hook 209, laser reflector 210, protection mechanism 3, protection block 301, sliding rod 302, sliding cylinder 303, spring 304, universal wheel 4, handle 5, anti-slip sleeve 6. DETAILED DESCRIPTION
[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0025] Embodiment 1
[0026] See also Figure 1 - Figure 6 , the utility model provides a technical solution: a hood lifting rod test bench, comprising a support frame 1, a handle 5, an anti-slip sleeve 6 and four universal wheels 4, a test mechanism 2 is arranged above the support frame 1, and a protective mechanism 3 is arranged on the surface of the support frame 1;
[0027] The testing mechanism 2 includes a testing component and a supporting component;
[0028] The test assembly is located inside the support assembly;
[0029] The test assembly includes an experimental board 201, a laser distance measuring instrument 208 and a laser reflector 210. A fixing hole is provided through the top surface of the experimental board 201. Two electric push rods 203 are provided below the experimental board 201. The two electric push rods 203 are symmetrically arranged. A hook 209 is installed on the bottom surface of the experimental board 201. The laser distance measuring instrument 208 is located at the rear side of the output rod of the electric push rod 203.
[0030] The support assembly includes a connecting plate 202, the top surface of the connecting plate 202 is hinged to the bottom surfaces of two electric push rods 203, a C-shaped bracket 206 is arranged above the electric push rod 203, a connecting frame 204 is arranged on the outer side of the left end of the experimental board 201, a rotating rod 205 is arranged inside the connecting frame 204, a support plate 207 is arranged on the inner side of the C-shaped bracket 206, the top surface of the output rod of the electric push rod 203 is hinged to the bottom surface of the support plate 207, a laser reflector 210 is located on the left side of the connecting plate 202, the front and rear end surfaces of the connecting plate 202 are fixedly connected to the inner side surface of the support frame 1, and the inner side surface of the connecting frame 204 is connected to the support frame 1 is fixedly connected to the outer side, the rotating rod 205 is fixedly penetrated through the front side of the experimental board 201 and extends to the rear side of the experimental board 201, the front and rear end faces of the rotating rod 205 are rotatably connected to the inner side of the connecting frame 204 through the bearing seat, and a first bolt is arranged on the inner side of the C-shaped bracket 206. The left end face of the first bolt is threaded through the right side of the C-shaped bracket 206, the left side of the experimental board 201 and the inner wall of the fixing hole and extends to the left side of the experimental board 201. The inner wall of the support plate 207 is threadedly connected to the inner wall of the C-shaped bracket 206 through the second bolt, and the rear side of the laser distance meter 208 is fixedly connected to the inner side of the C-shaped bracket 206. The right side of the laser reflector 210 is fixedly connected to the left side of the connecting plate 202. Through the test mechanism 2, the test assembly uses the electric push rod 203 to simulate the engine hood lifting rod, the weights hung on the experimental board 201 and the hook 209 simulate the engine hood, and the output rod of the electric push rod 203 drives the experimental board 201 to move up and down to model the opening and closing actions of the experimental door. The laser rangefinder 208 and the laser reflector 210 are used to detect the compression and elongation time of the output rod of the electric push rod 203, the lifting time and speed brought by different lifting angles of the experimental board 201, and other different experimental data, and the engine The product design of the hood lifting rod is optimized, and weights are hung on the hook 209 to increase the weight of the test plate 201. In this experiment, doors of different weights can be equipped with counterweights according to different vehicle models, so as to collect the tensile and compression test data of different doors on the electric push rod 203. The support component supports the experimental component, and the position of the output rod of the electric push rod 203 is adjusted by changing the position of the C-shaped bracket 206, so as to simulate the lifting time and speed of the hood lifting rod at different positions on the door, thereby improving the accuracy and efficiency of the test bench for the hood lifting rod test.
[0031] The top surfaces of the four universal wheels 4 are fixedly connected to the top surface of the support frame 1 .
[0032] The right side of the handle 5 is fixedly connected to the left side of the support frame 1, and the anti-slip cover 6 is mounted on the surface of the handle 5. Through the universal wheel 4 and the handle 5, the support frame 1 can be moved by one person to achieve the position movement of the test bench.
[0033] Embodiment 2
[0034] Based on the first embodiment, a preferred embodiment of a hood lifting rod test bench provided by the utility model is as follows: Figure 5 As shown: the protection mechanism 3 includes a protection block 301, a sliding groove is opened on the top surface of the right side of the support frame 1, the bottom end surface of the protection block 301 slides through the top surface of the support frame 1 and extends to the inside of the sliding groove, the bottom surface of the protection block 301 is fixedly connected with a sliding rod 302, and the bottom surface of the inner bottom of the sliding groove is fixedly connected with a sliding cylinder 303, the bottom end surface of the sliding rod 302 slides through the top surface of the sliding cylinder 303 and extends to the inside of the sliding cylinder 303, and a spring 304 is sleeved on the surface of the sliding cylinder 303, the bottom end surface of the spring 304 is fixedly connected to the bottom surface of the inner bottom of the sliding groove, and the top surface of the spring 304 is fixedly connected to the bottom surface of the protection block 301. Through the protection mechanism 3, the protection block 301 prevents the experimental board 201 from falling and causing a violent collision, avoids the squeezing of fingers on the support frame 1, and improves the safety effect of the experimental bench.
[0035] When in use, according to different models of vehicles, doors of different weights are equipped with counterweights, and the weights are hung on the hook 209 to control the extension of the output rod of the electric push rod 203. The output rod of the electric push rod 203 drives the connected support plate 207 to move upward, so that the support plate 207 pushes the connected C-shaped bracket 206 to move upward, thereby driving the experimental board 201 to deflect upward, and detecting the extension time of the electric push rod 203. The laser distance meter 208 and the laser reflector 210 can measure the actual telescopic length of the output rod of the electric push rod 203, and use the distance output by the built-in software chip of the electric push rod 203 as a reference. The different lifting angles of the experimental board 201 bring The product design of the lifting rod is optimized based on different experimental data such as the lifting time and speed; the C-type bracket 206 is disassembled, and the C-type bracket 206 is installed into the fixing holes at different positions through the first bolt, so as to change the position of the telescopic rod of the electric push rod 203 on the experimental plate 201, and then the lifting and lowering of the experimental plate 201 at different positions are tested; when the experimental plate 201 moves downward and squeezes the protective block 301, the protective block 301 squeezes the connected sliding rod 302 and spring 304 downward, and the sliding rod 302 slides downward into the slide cylinder 303, and the spring 304 pushes the protective block 301 to move upward, thereby preventing the experimental plate 201 from falling and causing a violent impact.
[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A hood lifting rod test bench, comprising a support frame (1), a handle (5), an anti-slip sleeve (6) and four universal wheels (4), characterized in that: A testing mechanism (2) is arranged above the support frame (1), and a protection mechanism (3) is arranged on the surface of the support frame (1); The testing mechanism (2) comprises a testing component and a supporting component; The test assembly is located inside the support assembly; The test assembly comprises an experimental board (201), a laser distance measuring instrument (208) and a laser reflector (210); a fixing hole is provided through the top surface of the experimental board (201); two electric push rods (203) are arranged below the experimental board (201); the two electric push rods (203) are symmetrically arranged; a hook (209) is installed on the bottom surface of the experimental board (201); and the laser distance measuring instrument (208) is located at the rear side of the output rod of the electric push rod (203); The support assembly comprises a connecting plate (202), the top surface of the connecting plate (202) being hinged to the bottom surfaces of two electric push rods (203), a C-shaped bracket (206) being arranged above the electric push rods (203), a connecting frame (204) being arranged on the outer side of the left end of the experimental board (201), a rotating rod (205) being arranged inside the connecting frame (204), a supporting plate (207) being arranged on the inner side of the C-shaped bracket (206), the top end surface of the output rod of the electric push rod (203) being hinged to the bottom surface of the supporting plate (207), and the laser reflector (210) being located on the left side of the connecting plate (202).
2. The hood lift rod test bench according to claim 1, characterized in that: The front and rear end surfaces of the connecting plate (202) are both fixedly connected to the inner side surface of the support frame (1), the inner side surface of the connecting frame (204) is fixedly connected to the outer side surface of the support frame (1), the rotating rod (205) is fixedly passed through the front side surface of the experimental plate (201) and extends to the rear side of the experimental plate (201), and the front and rear end surfaces of the rotating rod (205) are both rotatably connected to the inner side surface of the connecting frame (204) through a bearing seat.
3. The hood lift rod test bench according to claim 1, characterized in that: A first bolt is arranged inside the C-shaped bracket (206), and a thread on the left end face of the first bolt penetrates the right side face of the C-shaped bracket (206), the left side face of the test board (201) and the inner wall of the fixing hole and extends to the left side of the test board (201).
4. The hood lift rod test bench according to claim 1, characterized in that: The inner wall of the support plate (207) is threadedly connected to the inner wall of the C-shaped bracket (206) via a second bolt, the rear side of the laser distance measuring instrument (208) is fixedly connected to the inner side of the C-shaped bracket (206), and the right side of the laser reflector (210) is fixedly connected to the left side of the connecting plate (202).
5. The hood lift rod test bench according to claim 1, characterized in that: The top surfaces of the four universal wheels (4) are all fixedly connected to the top surface of the support frame (1).
6. The hood lift rod test bench according to claim 1, characterized in that: The right side surface of the handle (5) is fixedly connected to the left side surface of the support frame (1), and the anti-slip sleeve (6) is sleeved on the surface of the handle (5).
7. The hood lift rod test bench according to claim 1, characterized in that: The protection mechanism (3) comprises a protection block (301), a slide groove is formed on the right top surface of the support frame (1), the bottom end surface of the protection block (301) slides through the top surface of the support frame (1) and extends to the inside of the slide groove, the bottom surface of the protection block (301) is fixedly connected with a slide rod (302), the bottom surface of the inside of the slide groove is fixedly connected with a slide cylinder (303), the bottom end surface of the slide rod (302) slides through the top surface of the slide cylinder (303) and extends to the inside of the slide cylinder (303), a spring (304) is sleeved on the surface of the slide cylinder (303), the bottom end surface of the spring (304) is fixedly connected to the bottom surface of the inside of the slide groove, and the top end surface of the spring (304) is fixedly connected to the bottom surface of the protection block (301).