CN109724782B - Strength test testing device - Google Patents
Strength test testing device Download PDFInfo
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- CN109724782B CN109724782B CN201711052876.0A CN201711052876A CN109724782B CN 109724782 B CN109724782 B CN 109724782B CN 201711052876 A CN201711052876 A CN 201711052876A CN 109724782 B CN109724782 B CN 109724782B
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Abstract
The invention relates to the field of automobile performance testing, in particular to a strength test testing device which comprises a height adjusting assembly, an executing assembly and an angle adjusting assembly, wherein the angle adjusting assembly comprises a rotating shaft and a locking mechanism, the executing assembly is rotatably connected with the height adjusting assembly through the rotating shaft, and the locking mechanism can lock the executing assembly on the height adjusting assembly. The strength test device can simultaneously realize the loading test of the angles with multiple dimensions and can continuously adjust the tested angles, thereby being capable of adapting to the multi-dimensional angle test requirements of different vehicle types and having higher universality.
Description
Technical Field
The invention relates to the field of automobile performance testing, in particular to a strength test device.
Background
The automobile traction device is an important part which must be equipped for an automobile and comprises a traction hook and a fixed component on a body in white; the automobile traction device is a device which is used for traction of other vehicles or is pulled by external force when the automobile traction device cannot normally run. In the process of towing an automobile or being towed, the towing device is subjected to the action of towing force of a large load, so that the towing device must have enough strength to avoid failure phenomena such as fracture and the like caused by insufficient strength when the towing device is used.
The new national standard GB 32087-.
The existing testing device cannot simultaneously realize the loading test on the angles of the two dimensions, even if the angle of a certain dimension of the existing testing device can be used for the loading test, the testing angles of the existing testing device are all in a fixed form, the universality is poor, the utilization rate of the testing device is low, and the development cost and the testing cost of equipment are increased.
Disclosure of Invention
The invention aims to provide a strength test testing device for an automobile traction device, which can simultaneously realize a loading test on angles of two dimensions and has higher universality so as to reduce the development cost and the test cost of equipment.
In order to solve the problems, the invention provides a strength test testing device which comprises a height adjusting assembly, an executing assembly and an angle adjusting assembly, wherein the angle adjusting assembly comprises a rotating shaft and a locking mechanism, the executing assembly is rotatably connected with the height adjusting assembly through the rotating shaft, and the locking mechanism can lock the executing assembly on the height adjusting assembly.
Preferably, the locking mechanism comprises a pressing disc, a pressing block and a pressing screw, one end face of the pressing disc is fixedly connected with the side edge of the executing assembly, the other end face of the pressing disc is attached to the lifting slide block of the height adjusting assembly, and the pressing block is locked on the lifting slide block through the pressing screw so that the pressing block presses the pressing disc on the lifting slide block.
Preferably, the pressing block is L-shaped, the pressing block is arranged at the edge of the pressing disc, and the concave side of the pressing block is matched with the side of the pressing disc.
As a preferable scheme, the angle adjusting assembly further includes a first sliding bearing, a bearing hole is formed in the lifting slide block, an outer ring of the first sliding bearing is sleeved in the bearing hole, and the rotating shaft is sleeved in an inner ring of the first sliding bearing.
Preferably, the height adjusting assembly comprises a portal frame, and a lifting mechanism and a lifting slide block which are arranged at the top of the portal frame, guide grooves are formed in the inner sides of two upright posts of the portal frame, the lifting slide block is movably connected to the guide grooves in a matched manner, and the lifting mechanism is connected with the slide block to drive the lifting slide block to move along the guide grooves.
Preferably, the lifting slide block is provided with a T-shaped slide block, and the guide groove is a T-shaped guide groove matched with the T-shaped slide block.
Preferably, the lifting mechanism comprises a worm gear lead screw structure, the worm gear lead screw structure is installed on a top plate of the portal frame, and the lower end of a lead screw of the worm gear lead screw structure is respectively connected with the lifting slide block through a connecting piece, so that the lead screw drives the lifting slide block to move up and down along the guide groove.
Preferably, the connecting piece is a steel wire rope, the lifting slide block is provided with a lifting ring, and the end part of the steel wire rope is connected to the lifting ring.
Preferably, the actuating assembly comprises an actuating component, a driving mechanism and a guiding mechanism, wherein the guiding mechanism comprises a supporting piece and two guiding shafts movably inserted in the supporting piece; the driving mechanism comprises an actuator, and the driving end of the actuator is fixedly connected with the execution part; the angle adjusting assembly is arranged on the side wall of the supporting piece, the driving mechanism is installed on the supporting piece, and two ends of the executing component are fixedly connected with the extending ends of the two guide shafts respectively.
As a preferred scheme, the supporting piece comprises two parallel square tubes and a supporting plate for fixedly connecting the two square tubes, and the driving mechanism is arranged on the supporting plate and positioned between the two square tubes; the end part of the square tube is provided with a second sliding bearing, and the guide shaft is movably inserted in the square tube and is connected with the end part of the square tube through the second sliding bearing.
Preferably, the actuating member includes a connecting plate and a connecting lug disposed on the connecting plate, and the connecting plate is fixedly connected to the actuator and the extending end of the guide shaft.
The strength test device can simultaneously realize the loading test of the angles with multiple dimensions and can realize the continuous adjustment of the test angles, thereby being capable of adapting to the multi-dimensional angle test requirements of different vehicle types and having higher universality; therefore, the utilization rate of the testing device can be improved, and the development cost and the test cost of the testing device can be reduced.
Drawings
FIG. 1 is a schematic structural diagram of a strength test device according to a preferred embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the testing device of FIG. 1 at a location where the angle adjustment assembly is coupled to the elevator slide;
FIG. 3 is a schematic structural view of a height adjustment assembly of the test device of FIG. 1;
fig. 4 is a schematic structural view of an angle adjustment assembly of the test apparatus shown in fig. 1.
Wherein, 1, a portal frame; 11. a top plate; 12. a column; 13. a base plate; 14. a guide groove; 2. a height adjustment assembly; 21. a lifting mechanism; 211. a worm gear lead screw structure; 2111. a screw rod; 212. a connecting member; 213. a hoisting ring; 22. a lifting slide block; 221. a bearing bore; 222. a T-shaped sliding block; 3. an execution component; 31. an execution component; 311. a connecting plate; 312. connecting lugs; 32. a drive mechanism; 321. a hydraulic cylinder; 322. a controller; 33. a guide mechanism; 331. a support member; 332. a guide shaft; 333. a second sliding bearing; 4. an angle adjustment assembly; 41. a rotating shaft; 42. a locking mechanism; 421. a compression disc; 422. briquetting; 423. a compression screw; 43. a first sliding bearing.
Detailed Description
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Referring to fig. 1 to 4, a strength test apparatus according to an embodiment of the present invention is schematically shown, which includes a height adjusting assembly 2, an executing assembly 3, and an angle adjusting assembly 4;
the height adjusting assembly 2 comprises a portal frame 1, a lifting mechanism 21 and a lifting slide block 22, wherein the lifting mechanism 21 and the lifting slide block 22 are arranged at the top of the portal frame 1, the portal frame 1 comprises a top plate 11, a bottom plate 13 and two upright columns 12 which are arranged between the top plate 11 and the bottom plate 13 in a relatively parallel mode, guide grooves 14 are formed in the inner sides of the two upright columns 12, the lifting slide block 22 is movably connected with the guide grooves 14 in a matched mode, and the lifting mechanism 21 is connected with the lifting slide block 22 to drive the lifting slide block 22 to move along the guide grooves 14; two sides of the execution component 3 are respectively provided with an angle adjusting component 4;
referring to fig. 2 and 4, the angle adjusting assembly 4 includes a rotating shaft 41 and a locking mechanism 42, the actuating assembly 3 is rotatably connected to the lifting slider 22 through the rotating shaft 41, and the locking mechanism 42 can lock the actuating assembly 3 to the lifting slider 22.
According to the strength test device provided by the embodiment of the invention, the execution component 3 is connected with the lifting slide block 22 of the height adjusting component 2 through the rotating shaft 41 of the angle adjusting component 4, so that the height of the execution component 3 can be adjusted by adjusting the height of the lifting slide block 22, and the height requirements of traction devices of different vehicle types are met; the executing component 4 can be rotated, and the included angle between the loading load direction in the vertical plane and the horizontal line is adjusted by adopting an angle meter auxiliary measurement mode, so that the loading requirements of different angles in the vertical plane are met; the testing device can be horizontally rotated, and the included angle between the loading load direction in the horizontal plane and the horizontal line is adjusted in an angle instrument auxiliary measurement mode so as to meet the loading requirements of different angles in the horizontal plane; therefore, the loading test of the angles of multiple dimensions can be realized simultaneously, and the test angles can be continuously adjusted, so that the test device has higher universality, the utilization rate of the test device is improved, and the development cost and the test cost of the test device are reduced.
As shown in fig. 4, the locking mechanism 42 includes a pressing disk 421, a pressing block 422, and a pressing screw 423, where the pressing disk 421 is disc-shaped and is convenient to rotate, one end surface of the pressing disk 421 is fixedly connected (e.g., welded or bolted) to a side of the supporting member 331 of the actuator 3 to ensure that the actuator 3 can rotate synchronously with the pressing disk 421, and the other end surface of the pressing disk 421 is attached to the lifting slider 22, and after the actuator 3 rotates to a proper angle, the pressing block 422 is locked on the lifting slider 22 by the pressing screw 423 to press the pressing block 422 onto the lifting slider 22, so that the static friction force between the pressing disk 421 and the lifting slider 22 can be used to limit the actuator 3 from rotating during a loading test, and the accuracy of the loading angle of the actuator 3 is ensured.
The pressing block 422 is L-shaped, the pressing block 422 is arranged at the edge of the pressing disc 421, and the concave side of the pressing block 422 is matched with the side part of the pressing disc 421; preferably, four pressing blocks 422 are correspondingly arranged on each pressing disc 421, and the four pressing blocks 422 are uniformly distributed along the circumference of the pressing disc 421; this arrangement allows the pressing force of the pressing member 422 to be uniformly applied to the pressing disk 421, and thus, the static friction force between the entire disk surface of the pressing disk 421 and the lift slider 22 can be distributed relatively uniformly, which can prevent the rotation of the pressing disk 421 relatively reliably.
The angle adjusting assembly 4 further comprises a first sliding bearing 43, a bearing hole 221 is formed in the lifting sliding block 22, an outer ring of the first sliding bearing 43 is sleeved in the bearing hole 221, the rotating shaft 41 is sleeved in an inner ring of the first sliding bearing 43, the first sliding bearing 43 supports the rotating shaft 41, the rotating shaft 41 can be prevented from being in direct contact with the lifting sliding block 22, large friction force is generated, and the executing assembly 3 can rotate smoothly.
As shown in FIG. 2, the T-shaped slider 222 is disposed on the lifting slider 22, and the guide groove 14 is shaped as a T-shaped guide groove matched with the T-shaped slider, so that the T-shaped slider 222 is always in sliding fit with the guide groove 14, and the lifting slider 22 is prevented from being separated from the guide groove.
As shown in fig. 3, the lifting mechanism 21 of the height adjustment assembly 2 includes a worm wheel screw rod structure 211, wherein the worm wheel screw rod structure 211 is installed on the top plate 11 of the gantry 1, the lower end of the screw rod 2111 of the worm wheel screw rod structure 212 is respectively connected to the lifting slide blocks 22 on both sides of the actuating assembly 3 through a connecting piece 212, when an external electric wrench drives the worm wheel of the worm wheel screw rod structure 211 to rotate, the screw rod 2111 can drive the lifting slide blocks 22 to move up and down along the guide grooves 14, because the actuating assembly 3 is connected to the lifting slide blocks 22, the up and down movement of the lifting slide blocks 22 can drive the actuating assembly 3 to move up and down, thereby adjusting the height of the actuating assembly 3 is achieved.
Preferably, the connecting member 212 is a wire rope, the lifting slider 22 is provided with a hanging ring 213, and the two ends of the wire rope are provided with hooks respectively connected to the hanging ring 213, so that the arrangement facilitates the replacement and maintenance of the parts and the assembly and disassembly are very convenient.
As shown in fig. 1, the actuating assembly 3 includes an actuating member 31, a driving mechanism 32 and a guiding mechanism 33; the guide mechanism 33 includes a support 331 and two guide shafts 332 movably inserted in the support 331 and arranged in parallel; the driving mechanism 32 is an actuator, and the driving end of the actuator is fixedly connected with the executing part 31; in this embodiment, the actuator includes a hydraulic cylinder 321 and a controller 322, the controller 322 is installed on the cylinder body of the hydraulic cylinder 321, and the end of the rod of the hydraulic cylinder 321 is fixedly connected to the executing component 31; in other embodiments, the actuator may also be in pneumatic form; the angle adjusting assembly 4 is provided on a side wall of the support 331, and the driving mechanism 32 is mounted on the support 331.
The controller 322 controls the extension and contraction of the rod of the hydraulic cylinder 321, so as to control the actuating component 31 to reciprocate along the length direction of the support 331, thereby loading the load on the vehicle traction device to be tested; when the cylinder rod of the hydraulic cylinder 321 extends, the executing component 31 is loaded with a compressive load, and when the cylinder rod of the hydraulic cylinder 321 contracts, the executing component is loaded with a tensile load, so that the test of the tensile and compressive loads of the automobile traction device to be tested is realized; and the displacement of the cylinder rod of the hydraulic cylinder 321 is the deformation of the automobile traction device to be measured, so as to achieve the purpose of obtaining the deformation of the automobile traction device to be measured in real time.
Preferably, the supporting member 331 includes two square pipes arranged in parallel and a supporting plate for fixedly connecting the two square pipes, and the driving mechanism 32 is installed on the supporting plate and located between the two square pipes; the end of the square tube is provided with a second sliding bearing 333, and the guide shaft 332 is movably inserted into the square tube and is connected with the end of the square tube through the second sliding bearing 333; the second sliding bearing 333 may reduce a frictional force between the guide shaft 332 and the square pipe to reduce a load of the hydraulic cylinder 321.
The actuating member 31 comprises a connecting plate 311 and a connecting lug 312 arranged on the connecting plate 311, two ends of the connecting plate 311 are respectively and fixedly connected with the extending ends of the two guide shafts 332, and the middle part of the connecting plate 311 is fixedly connected with the extending end of the cylinder rod of the hydraulic cylinder 321; the testing device is connected with the automobile traction device to be tested by penetrating the connecting lug 312 through a bolt or a pin shaft, so that the assembly and disassembly are convenient, and the operation steps of the testing device are simplified.
The working principle of the strength test testing device of the automobile traction device provided by the embodiment of the invention is as follows: the worm wheel of the worm wheel screw rod structure 211 of the lifting mechanism 21 is driven to rotate, so that the screw rod 2111 drives the lifting slide block 22 to move up and down along the guide groove 14 so as to drive the execution assembly 3 to move up and down, and the height of the execution assembly 3 is adjusted to be matched with the height of the automobile traction device to be tested; loosening the compression screw 423 of the locking mechanism 42 to enable the compression disc 421 to rotate relative to the lifting slider 22, then rotating the executive component 3, enabling the compression disc 421 to rotate synchronously with the executive component 3, measuring the angle required to rotate by using an angle meter, for example, rotating by +/-5 degrees along a vertical plane, and then locking the compression screw 423, thereby obtaining a loading angle along the vertical plane; when a loading test in a horizontal plane is carried out, the angle of the execution component 3 in the vertical plane is adjusted to be 0 degree, then the height of the connecting lug 312 of the execution component 3 is adjusted to be consistent with the height of the automobile traction device to be tested through the lifting mechanism 21, then the whole testing device is horizontally translated, a required angle is measured by using an angle meter, for example, the angle is translated +/-25 degrees in the horizontal plane, and then the testing device is fixed, so that the loading angle in the horizontal plane is obtained.
In summary, the strength test testing device of the embodiment of the invention can adjust the height of the executing component 3 by adjusting the height of the lifting slider 22, so as to meet the height requirements of the traction devices of different vehicle types; the executing component 4 can be rotated, and the included angle between the loading load direction in the vertical plane and the horizontal line is adjusted by adopting an angle meter auxiliary measurement mode, so that the loading requirements of different angles in the vertical plane are met; the testing device can be horizontally rotated, and the included angle between the loading load direction in the horizontal plane and the horizontal line is adjusted in an angle instrument auxiliary measurement mode so as to meet the loading requirements of different angles in the horizontal plane; therefore, loading tests on the angles with multiple dimensions can be realized, and the test angles can be continuously adjusted, so that the method can meet the requirements of multi-dimensional angle tests of different vehicle types and has high universality; therefore, the utilization rate of the testing device can be improved, and the development cost and the test cost of the testing device can be reduced.
In addition, when the cylinder rod of the hydraulic cylinder 321 of the actuating assembly 3 extends, the actuating component 31 is loaded with a compressive load, and when the cylinder rod of the hydraulic cylinder 321 of the actuating assembly 3 contracts, the actuating component is loaded with a tensile load, so that the test that the tensile load and the compressive load can be carried out on the automobile traction device to be tested is realized; and the displacement of the cylinder rod of the hydraulic cylinder 321 is the deformation of the automobile traction device to be measured, so as to achieve the purpose of obtaining the deformation of the automobile traction device to be measured in real time.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.
Claims (7)
1. A strength test testing device is characterized by comprising a height adjusting assembly, an executing assembly and an angle adjusting assembly, wherein the angle adjusting assembly comprises a rotating shaft and a locking mechanism;
the locking mechanism comprises a pressing disc, a pressing block and a pressing screw, one end face of the pressing disc is fixedly connected with the side edge of the executing assembly, the other end face of the pressing disc is attached to the lifting slide block of the height adjusting assembly, and the pressing block is locked on the lifting slide block through the pressing screw so that the pressing block presses the pressing disc on the lifting slide block;
the pressing block is L-shaped, is arranged at the edge of the pressing disc, and the concave side of the pressing block is matched with the side part of the pressing disc;
the angle adjusting assembly further comprises a first sliding bearing, a bearing hole is formed in the lifting sliding block, an outer ring of the first sliding bearing is sleeved in the bearing hole, and the rotating shaft is sleeved in an inner ring of the first sliding bearing;
the height adjusting assembly comprises a portal frame, a lifting mechanism and a lifting slide block, the lifting mechanism and the lifting slide block are arranged at the top of the portal frame, guide grooves are formed in the inner sides of two upright columns of the portal frame, the lifting slide block is movably connected to the guide grooves in a matched mode, and the lifting mechanism is connected with the lifting slide block to drive the lifting slide block to move along the guide grooves.
2. The strength test testing device of claim 1, wherein a T-shaped sliding block is arranged on the lifting sliding block, and the guide groove is a T-shaped guide groove matched with the T-shaped sliding block.
3. The strength test device according to claim 1, wherein the lifting mechanism comprises a worm gear screw structure, the worm gear screw structure is mounted on the top plate of the gantry, and the lower ends of screws of the worm gear screw structure are respectively connected with the lifting slide block through a connecting piece, so that the screws drive the lifting slide block to move up and down along the guide groove.
4. The strength test testing device of claim 3, wherein the connecting piece is a steel wire rope, the lifting slide block is provided with a lifting ring, and the end part of the steel wire rope is connected to the lifting ring.
5. The strength test device according to any one of claims 1 to 4, wherein the actuating assembly comprises an actuating member, a driving mechanism and a guiding mechanism, the guiding mechanism comprises a supporting member and two guiding shafts movably inserted in the supporting member;
the driving mechanism comprises an actuator, and the driving end of the actuator is fixedly connected with the execution part;
the angle adjusting assembly is arranged on the side wall of the supporting piece, the driving mechanism is installed on the supporting piece, and two ends of the executing component are fixedly connected with the extending ends of the two guide shafts respectively.
6. The strength test testing device according to claim 5, wherein the supporting member comprises two parallel square tubes and a supporting plate for fixedly connecting the two square tubes, and the driving mechanism is mounted on the supporting plate and positioned between the two square tubes; the end part of the square tube is provided with a second sliding bearing, and the guide shaft is movably inserted in the square tube and is connected with the end part of the square tube through the second sliding bearing.
7. The strength test device of claim 6, wherein the actuating member comprises a connecting plate and a connecting lug arranged on the connecting plate, and the connecting plate is fixedly connected to the actuator and the extending end of the guide shaft.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711052876.0A CN109724782B (en) | 2017-10-31 | 2017-10-31 | Strength test testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711052876.0A CN109724782B (en) | 2017-10-31 | 2017-10-31 | Strength test testing device |
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| CN109724782A CN109724782A (en) | 2019-05-07 |
| CN109724782B true CN109724782B (en) | 2020-12-11 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110285963B (en) * | 2019-07-06 | 2021-02-19 | 浙江永美科技股份有限公司 | Hydraulic cylinder damage degree detection device that is obstructed |
| CN110815784A (en) * | 2019-11-21 | 2020-02-21 | 衡阳市鸿康纸塑容器包装有限公司 | Electric lifting device of vertical blow molding machine |
| CN111307428B (en) * | 2019-12-15 | 2021-09-03 | 安徽青松工具有限公司 | Auxiliary tool for detecting trailer hook |
| CN114962873A (en) * | 2022-04-18 | 2022-08-30 | 中国第一汽车股份有限公司 | Attitude adjustment decoupling type automobile traction device loading test equipment and attitude adjustment method thereof |
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| CN101706401A (en) * | 2009-11-25 | 2010-05-12 | 哈尔滨工业大学 | Rigidity testing device of fixed type metal sheet stamping part |
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