Automobile pipeline vibration test device and test method
By designing a clamping structure including fixed ply plates, movable ply plates, screw rods and limit plates, the problem that existing automobile pipeline vibration testing devices cannot effectively clamp pipe fittings of different sizes is solved, and the stable clamping of pipe fittings and the accuracy of test results is achieved.
Patent Information
- Application Number
- CN202411857017.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-17
- Publication Date
- 2025-04-04
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing automobile pipeline vibration test devices cannot effectively clamp and fix pipe fittings of different sizes, resulting in some pipe fittings with too large or too small sizes not clamping firmly, easily falling, affecting the test results.
A clamping structure including fixed ply plates, movable ply plates, screw rods and limit plates is designed. By screwing the screw rods, the movable ply plates are driven to move under the limit of the limit plates, thereby achieving stable clamping of pipe fittings of different sizes. In addition, by setting up brackets, uprights, positioning structures and slots, the height and position of the brackets are quickly adjusted.
It realizes stable clamping of automobile pipes of different sizes to ensure the accuracy and reliability of test results and avoids the problem of pipe fittings falling.
Smart Images
Figure CN119756746A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the field of automobile parts testing, in particular to an automobile pipeline vibration test device and a test method. Background Art
[0002] Automobile pipelines include: air compressor intake pipes, intercoolers, oil supply and return pipes, carbon canister oil pipes, air conditioning pipes, etc. The reciprocating motion of an object or particle relative to the equilibrium position is called vibration. Vibration is divided into sinusoidal vibration, random vibration, compound vibration, scanning vibration, and fixed-frequency vibration. The main parameters describing vibration are: amplitude, velocity, acceleration, and tests conducted on physical objects or models of vibration systems on site or in the laboratory. Vibration systems are mass elastic systems excited by vibration sources, such as machines, structures or their components, organisms, etc. Vibration tests were developed from the aerospace sector and are now extended to various industrial sectors such as power machinery, transportation, and construction, as well as environmental protection and labor protection. Their applications are becoming increasingly widespread. Vibration tests include response measurement, dynamic characteristic parameter determination, load identification, and vibration environment testing. Automobile pipeline pulse vibration test benches are a type of pulse fatigue test system.
[0003] The existing device for automobile pipeline vibration test, when in use, because the sizes of the pipes to be tested are different, and the clamping structure of the test device cannot effectively clamp and fix the pipes of different sizes, so that some pipes that are too large or too small are not clamped firmly and are easy to fall, which affects the test results. Therefore, there is an urgent need for an automobile pipeline vibration test device and a test method. Summary of the invention
[0004] The purpose of the present invention is to provide an automobile pipeline vibration test device and a test method to solve the problem that, when in use, the sizes of the pipes to be tested are different, and the clamping structure of the test device cannot effectively clamp and fix the pipes of different sizes, so that some pipes that are too large or too small are not clamped firmly and are easy to fall, thereby affecting the test results and the test device cannot quickly adjust the appropriate height of the bracket according to the height of the automobile pipe.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an automobile pipeline vibration test device and a test method, comprising a test device body, a vibration table is installed on the inner side of the test device body, and a bracket is arranged above the test device body, a vertical plate is fixed to the top of the test device body, a clamping structure is arranged at the top of the vibration table, a positioning structure is arranged at the top of the bracket, and a slot is opened on the inner side of the vertical plate.
[0006] The clamping structure includes a conducting seat, a rotating seat is fixed on the top of the conducting seat, an adjusting groove is arranged on the inner side of the rotating seat, and an adjusting seat is opened on the rotating seat, a threaded rod is arranged on the inner side of the adjusting groove, a nut sleeve is sleeved on the outer wall of the threaded rod, a fixed splint is arranged on the top of the adjusting seat, a movable splint is arranged on the left side of the fixed splint, and a screw rod is movably arranged on the inner side of the fixed splint, and a limiting plate is arranged at the rear end of the screw rod.
[0007] The positioning structure comprises a fixing plate, an insert rod is movably arranged inside the fixing plate, a connecting plate is arranged on the outer wall of the insert rod, a lifting rod is fixed on the end of the insert rod, and a spring is connected to the connecting plate.
[0008] Preferably, a medium box is engaged with the outer side of the test device body, a high-temperature device is installed inside the medium box, and a battery is installed on the top of the medium box, so the outer wall of the medium box is connected to a positioning plate, a lock is provided at the end of the positioning plate, and a support plate is provided on the outer wall of the test device body.
[0009] Preferably, the medium box and the test device body are fixed by means of a positioning plate, a lock and a supporting plate, and the high-temperature equipment and the battery are electrically connected by a power line.
[0010] Preferably, the number of the rotating seat, adjustment slot, adjustment seat, threaded rod, nut sleeve, fixed splint and screw rod is two, an installation slot is provided on the inner side of the bracket, one rotating seat is fixedly connected to the conductive seat, a threaded block is provided at the top of the other rotating seat, and the rotating seat and the bracket are fixedly connected through the threaded block and the installation slot.
[0011] Preferably, the adjustment seat is rotationally connected to the rotating seat via a rotating shaft, and the adjustment seat is fixedly connected to the rotating seat via an adjustment groove and a threaded rod. There are multiple adjustment grooves, and a friction pad is connected to the inner wall of the movable splint.
[0012] Preferably, the screw rod is movably connected to the fixed splint and the movable splint via threads, and the screw rod is movably connected to the adjustment seat via a support plate and a bearing, the movable splint and the screw rod are movably connected via threads, and the limit plate is welded to the top of the adjustment seat.
[0013] Preferably, there are multiple slots, and the slots are connected by snap-fitting with the insertion rods. Two fixing plates and the insertion rods are provided at the top of the bracket, and the bracket is fixedly connected with the vertical plate through the insertion rods and the slots.
[0014] Preferably, a contraction groove matching the spring is formed on the outer wall of the fixing plate, and two ends of the spring are fixedly connected to the contraction groove and the connecting plate respectively, and a movable groove matching the insertion rod is formed on the inner side of the fixing plate.
[0015] Preferably, the method comprises the following steps: Step 1: Fix the bottom end of the automobile air conditioning pipe to the clamping structure on the vibration table; Step 2: According to the size of the automobile air conditioning duct, adjust the height and front and rear position of the bracket, and fix the bracket and the vertical plate through the positioning structure; Step 3: After adjustment, the top end of the automobile air conditioning pipe is fixedly clamped to the bracket by a clamping structure; Step 4: Operate the control panel, set the test data, and the vibration table can perform vibration tests on the automobile air conditioning ducts.
[0016] Compared with the prior art, the present invention has the following beneficial effects: First, the present invention places the bottom end of the automobile air-conditioning pipe on the inner side of the fixed splint and fits it with the friction pad by setting a fixed splint, a movable splint, a screw rod and a limit plate. At this time, the screw rod is screwed to rotate on the fixed splint through a thread, and the movable splint is driven to move to the right side under the limit of the limit plate during rotation. The movable splint continuously clamps the bottom end of the air-conditioning pipe when it moves, so that the bottom end of the air-conditioning pipe is fixed on the inner side of the movable splint and the fixed splint. Since the position of the movable splint can be adjusted arbitrarily, air-conditioning pipes of different sizes can be clamped and fixed.
[0017] The cam is pressed against the top of the support frame and the spring is pressed against the support frame to release the lifting rod and the spring, and the lifting rod and the spring are pressed against the support frame to release the lifting rod and the spring, and the lifting rod and the spring are pressed against the support frame to release the lifting rod and the spring. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the front cross-section structure of the present invention; Figure 3 It is a schematic diagram of the clamping structure of the present invention; Figure 4 It is a schematic diagram of the adjustment tank of the present invention; Figure 5 It is a schematic diagram of the movable splint of the present invention; Figure 6 It is a schematic diagram of the top view of the structure of the present invention; Figure 7 For the present invention Figure 6 A is an enlarged schematic diagram; Figure 8 It is a schematic diagram of the plunger of the present invention; Fig. 9 A schematic diagram of a slot of the present invention; Fig.10 It is a schematic diagram of the thread block of the present invention; Fig.11 It is a schematic diagram of a supporting plate of the present invention.
[0019] In the figure: 1. Test device body; 2. Vibration table; 3. Clamping structure; 301. Conducting seat; 302. Rotating seat; 303. Adjusting slot; 304. Adjusting seat; 305. Threaded rod; 306. Nut sleeve; 307. Fixed splint; 308. Screw rod; 309. Movable splint; 310. Threaded block; 311. Mounting slot; 312. Limiting plate; 4. Bracket; 5. Vertical plate; 6. Positioning structure; 601. Fixed plate; 602. Insert rod; 603. Connecting plate; 604. Spring; 605. Lifting rod; 7. Slot; 8. Medium box; 9. High temperature equipment; 10. Battery; 11. Positioning plate; 12. Lock; 13. Support plate. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.
[0021] See also Figure 1-5A vehicle pipeline vibration test device and test method, including a test device body 1, a vibration table 2 is installed on the inner side of the test device body 1, and a bracket 4 is arranged above the test device body 1, a vertical plate 5 is fixed to the top of the test device body 1, a clamping structure 3 is arranged on the top of the vibration table 2, a positioning structure 6 is arranged on the top of the bracket 4, a slot 7 is opened on the inner side of the vertical plate 5, the clamping structure 3 includes a conduction seat 301, a rotating seat 302 is fixed to the top of the conduction seat 301, an adjustment groove 303 is arranged on the inner side of the rotating seat 302, and an adjustment seat 304 is opened on the rotating seat 302, a threaded rod 305 is arranged on the inner side of the adjustment groove 303, a nut sleeve 306 is sleeved on the outer wall of the threaded rod 305, and a fixed clamp is arranged on the top of the adjustment seat 304 307, a movable splint 309 is arranged on the left side of the fixed splint 307, and a screw rod 308 is movably arranged on the inner side of the fixed splint 307, and a limit plate 312 is arranged at the rear end of the screw rod 308, a medium box 8 is clamped on the outer side of the test device body 1, a high temperature device 9 is installed inside the medium box 8, and a battery 10 is installed on the top of the medium box 8, so the outer wall of the medium box 8 is connected with a positioning plate 11, and a lock buckle 12 is arranged at the end of the positioning plate 11, and a supporting plate 13 is arranged on the outer wall of the test device body 1, the medium box 8 and the test device body 1 are clamped and fixed by the positioning plate 11, the lock buckle 12 and the supporting plate 13, the high temperature device 9 and the battery 10 are electrically connected through the power line, the rotating seat 302, the adjustment slot 303, the adjustment seat 304, the threaded rod 305, nut sleeve 306, fixed splint 307 and screw rod 308 are two in number, a mounting groove 311 is opened on the inner side of the bracket 4, a rotating seat 302 is fixedly connected to the conductive seat 301, a threaded block 310 is arranged on the top of the other rotating seat 302, and the rotating seat 302 is fixedly connected to the bracket 4 through the threaded block 310 and the mounting groove 311, the adjusting seat 304 is rotatably connected to the rotating seat 302 through a rotating shaft, and the adjusting seat 304 is fixedly connected to the rotating seat 302 through the adjusting groove 303 and the threaded rod 305, the number of the adjusting grooves 303 is multiple, a friction pad is connected to the inner wall of the movable splint 309, the screw rod 308 is movably connected to the fixed splint 307 and the movable splint 309 through threads, and the screw rod 308 is connected to the adjusting seat 304 The movable splint 309 is movably connected to the screw rod 308 through a threaded connection through a support plate and a bearing, and the limit plate 312 is welded to the top of the adjustment seat 304. The bottom end of the automobile air-conditioning pipe is placed on the inner side of the fixed splint 307 and fits with the friction pad. At this time, the screw rod 308 is screwed to rotate on the fixed splint 307 through a thread, and the movable splint 309 is driven to move to the right side under the limit of the limit plate 312 during rotation. When the movable splint 309 moves, it continuously clamps the bottom end of the air-conditioning pipe, so that the bottom end of the air-conditioning pipe is fixed on the inner side of the movable splint 309 and the fixed splint 307. Since the movable splint 309 can be adjusted to its position at will, air-conditioning pipes of different sizes can be clamped and fixed, and then according to the shape of the air-conditioning pipe,To adjust the tilt angle, push the adjustment seat 304 to move inside the rotating seat 302 to adjust the angle. After adjustment, pass the threaded rod 305 through the adjustment slot 303 at the corresponding position and fix it on the rotating seat 302 and the adjustment seat 304 through the nut sleeve 306. After the adjustment, the adjustment seat 304 is fixed to the rotating seat 302.
[0022] See also Figure 6-11 , a vehicle pipeline vibration test device and test method, the positioning structure 6 includes a fixed plate 601, a plug rod 602 is movably provided on the inner side of the fixed plate 601, a connecting plate 603 is provided on the outer wall of the plug rod 602, and a lifting rod 605 is fixed to the end of the plug rod 602, a spring 604 is connected to the connecting plate 603, the number of slots 7 is multiple, and the slots 7 are engaged with the plug rod 602, and the top of the bracket 4 is provided with two fixed plates 601 and the plug rod 602, the bracket 4 and the vertical plate 5 are fixedly connected by the plug rod 602 and the slot 7, the outer wall of the fixed plate 601 is provided with a contraction groove matching the spring 604, and the two ends of the spring 604 are respectively fixedly connected to the contraction groove and the connecting plate 603, and the inner side of the fixed plate 601 is provided with a movable groove matching the plug rod 602, and then according to the position of the top of the air-conditioning pipe, the position of the upper fixed clamping plate 307 and the movable clamping plate 309 is adjusted, first, the two lifting rods 60 are pulled outward at the same time. 5, so that it drives the insertion rod 602 and the spring 604 to move outward on the fixed plate 601. After being pulled out, the insertion rod 602 is pulled out from the slot 7 on the inner side of the vertical plate 5, so that the bracket 4 can be separated from the vertical plate 5, and at the same time, the bracket 4 is pushed on the inner side of the vertical plate 5 to move up and down and front and back positions. The slot 7 at a suitable position is selected. After selection, the lifting rod 605 and the insertion rod 602 are released. The lifting rod 605 and the insertion rod 602 return to their original positions under the elastic force of the spring 604, and pass through the fixed plate 601 and insert into the slot 7 on the inner side of the vertical plate 5, so that the bracket 4 is fixed to the vertical plate 5. After the bracket 4 is fixed, the left and right positions of the rotating seat 302 on it are adjusted, and the rotating adjustment seat 304 is adjusted to adjust the inclination angle, so that the upper fixed clamping plate 307 and the movable clamping plate 309 can clamp the top of the air-conditioning pipe, and clamp and fix the air-conditioning pipe, so that any size of the air-conditioning pipe can be firmly fixed on the main body 1 of the test device.
[0023] A test method of an automobile pipeline vibration test device comprises the following steps: Step 1: Fix the bottom end of the automobile air conditioning pipe to the clamping structure 3 on the vibration table 2; Step 2: According to the size of the automobile air conditioning duct, adjust the height and front and rear position of the bracket 4, and fix the bracket 4 and the vertical plate 5 through the positioning structure 6; Step 3: After adjustment, the top end of the automobile air conditioning pipe is fixedly clamped to the bracket 4 by the clamping structure 3; Step 4: Operate the control panel, set the test data, and the vibration table 2 can perform a vibration test on the automobile air-conditioning duct.
[0024] Working principle: When the present invention is used, the bottom end of the automobile air conditioning pipe is placed on the inner side of the fixed clamping plate 307 and fits with the friction pad. At this time, the screw rod 308 is screwed to rotate on the fixed clamping plate 307 through the thread, and the movable clamping plate 309 is driven to move to the right side under the limit of the limit plate 312 during the rotation. The movable clamping plate 309 continuously clamps the bottom end of the air conditioning pipe when it moves, so that the bottom end of the air conditioning pipe is fixed on the inner side of the movable clamping plate 309 and the fixed clamping plate 307. Since the movable clamping plate 309 can be adjusted at will, air conditioning pipes of different sizes can be clamped and fixed, and then according to the shape of the air conditioning pipe, the movable clamping plate 309 can be adjusted at will. , adjust the inclination angle, push the adjustment seat 304 to move on the inner side of the rotating seat 302, adjust the angle, after adjustment, pass the threaded rod 305 through the adjustment slot 303 at the corresponding position, and fix it on the rotating seat 302 and the adjustment seat 304 through the nut sleeve 306, so that the adjustment seat 304 is fixed with the rotating seat 302 after adjustment, and then adjust the position of the upper fixed clamping plate 307 and the movable clamping plate 309 according to the position of the top of the air-conditioning pipe. First, pull the two lifting rods 605 outward at the same time, so that it drives the insertion rod 602 and the spring 604 to move outward on the fixed plate 601. After being pulled out, the insertion rod 602 is pulled out from the vertical plate 5 The bracket 4 is pulled out from the slot 7 on the inner side, so that the bracket 4 can be separated from the vertical plate 5. At the same time, the bracket 4 is pushed on the inner side of the vertical plate 5 to move and adjust the up and down and front and back positions. The slot 7 at the appropriate position is selected. After selection, the lifting rod 605 and the insertion rod 602 are released. The lifting rod 605 and the insertion rod 602 return to their original positions under the elastic force of the spring 604, and pass through the fixing plate 601 and insert into the slot 7 on the inner side of the vertical plate 5, so that the bracket 4 is fixed to the vertical plate 5. After the bracket 4 is fixed, the left and right positions of the rotating seat 302 on it are adjusted, and the rotating adjustment seat 304 is adjusted to adjust the tilt angle, so that the upper fixed clamping plate 3 07 and the movable clamp 309 can be clamped with the top of the air-conditioning pipe, and the air-conditioning pipe is clamped and fixed, so that the air-conditioning pipe of any size can be firmly fixed on the test device body 1. Finally, the medium box 8 is fixed to the outside of the test device body 1 through the positioning plate 11, the lock 12 and the supporting plate 13 to simulate the external environment. Then the control panel is operated to set the test data. The vibration table 2 can perform vibration tests on the automobile air-conditioning ducts, and the medium box 8 and the entire pressure circulation system must be a completely sealed system. The medium heating rate is at least 2°C / minute, and the cooling rate is at least 1.5°C / minute to optimize the test environment.
[0025] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.
Claims
1. An automobile pipeline vibration test device and test method, comprising a test device body (1), characterized in that: A vibration table (2) is installed on the inner side of the test device body (1), and a bracket (4) is arranged above the test device body (1); a vertical plate (5) is fixed to the top of the test device body (1); a clamping structure (3) is arranged on the top of the vibration table (2); a positioning structure (6) is arranged on the top of the bracket (4); and a slot (7) is provided on the inner side of the vertical plate (5); The clamping structure (3) comprises a conducting seat (301), a rotating seat (302) is fixed at the top of the conducting seat (301), an adjusting groove (303) is arranged on the inner side of the rotating seat (302), and an adjusting seat (304) is provided on the rotating seat (302), a threaded rod (305) is arranged on the inner side of the adjusting groove (303), a nut sleeve (306) is sleeved on the outer wall of the threaded rod (305), a fixed clamping plate (307) is arranged on the top of the adjusting seat (304), a movable clamping plate (309) is arranged on the left side of the fixed clamping plate (307), a screw rod (308) is movably arranged on the inner side of the fixed clamping plate (307), and a limit plate (312) is arranged at the rear end of the screw rod (308); The positioning structure (6) comprises a fixing plate (601), an insert rod (602) is movably provided on the inner side of the fixing plate (601), a connecting plate (603) is provided on the outer wall of the insert rod (602), a lifting rod (605) is fixed at the end of the insert rod (602), and a spring (604) is connected to the connecting plate (603).
2. The automobile pipeline vibration test device and test method according to claim 1, characterized in that: A medium box (8) is engaged with the outside of the test device body (1), a high-temperature device (9) is installed inside the medium box (8), and a battery (10) is installed at the top of the medium box (8), so the outer wall of the medium box (8) is connected to a positioning plate (11), the end of the positioning plate (11) is provided with a lock (12), and the outer wall of the test device body (1) is provided with a supporting plate (13).
3. The automobile pipeline vibration test device and test method according to claim 2, characterized in that: The medium box (8) is fixedly engaged with the test device body (1) via a positioning plate (11), a lock buckle (12) and a supporting plate (13), and the high-temperature device (9) is electrically connected to the battery (10) via a power line.
4. The automobile pipeline vibration test device and test method according to claim 1, characterized in that: The number of the rotating seat (302), the adjusting groove (303), the adjusting seat (304), the threaded rod (305), the nut sleeve (306), the fixing clamping plate (307) and the screw rod (308) is two; a mounting groove (311) is provided on the inner side of the bracket (4); one rotating seat (302) is fixedly connected to the conducting seat (301); a threaded block (310) is provided at the top end of the other rotating seat (302); and the rotating seat (302) is fixedly connected to the bracket (4) via the threaded block (310) and the mounting groove (311).
5. The automobile pipeline vibration test device and test method according to claim 1, characterized in that: The adjustment seat (304) is rotationally connected to the rotating seat (302) via a rotating shaft, and the adjustment seat (304) is fixedly connected to the rotating seat (302) via an adjustment slot (303) and a threaded rod (305). There are a plurality of adjustment slots (303), and a friction pad is connected to the inner wall of the movable clamping plate (309).
6. The automobile pipeline vibration test device and test method according to claim 1, characterized in that: The screw rod (308) is movably connected to the fixed clamping plate (307) and the movable clamping plate (309) via threads, and the screw rod (308) is movably connected to the adjustment seat (304) via a support plate and a bearing, the movable clamping plate (309) is movably connected to the screw rod (308) via threads, and the limit plate (312) is welded to the top of the adjustment seat (304).
7. The automobile pipeline vibration test device and test method according to claim 1, characterized in that: There are a plurality of slots (7), and the slots (7) are snap-connected with the insertion rods (602); two fixing plates (601) and the insertion rods (602) are provided at the top of the bracket (4); and the bracket (4) and the vertical plate (5) are fixedly connected via the insertion rods (602) and the slots (7).
8. The automobile pipeline vibration test device and test method according to claim 1, characterized in that: The outer wall of the fixing plate (601) is provided with a contraction groove matching the spring (604), and the two ends of the spring (604) are respectively fixedly connected to the contraction groove and the connecting plate (603), and the inner side of the fixing plate (601) is provided with a movable groove matching the insertion rod (602).
9. The test method of the automobile pipeline vibration test device according to claim 1, characterized in that: The steps include: Step 1: Fixing the bottom end of the automobile air conditioning duct to the clamping structure (3) on the vibration table (2); Step 2: According to the size of the automobile air conditioning duct, adjust the height and front-to-back position of the bracket (4), and fix the bracket (4) and the vertical plate (5) by means of the positioning structure (6); Step 3: After adjustment, the top end of the automobile air conditioning pipe is fixedly clamped to the bracket (4) by the clamping structure (3); Step 4: Operate the control panel to set the test data. The vibration table (2) can perform a vibration test on the automobile air conditioning duct.