Device for testing failure torque of telescopic shaft
By designing a telescopic shaft failure torque test device that includes connecting the shaft and the sleeve, and directly measuring the breaking torque using the torque wrench, the problem of low efficiency in detecting the telescopic shaft failure torque in the prior art is solved, and fast and accurate detection results are achieved , and reduces detection risks and equipment costs.
Patent Information
- Application Number
- CN202323355422.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-08
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2033-12-08
AI Technical Summary
The prior art lacks a fast, effective, convenient and reliable method and device to detect the destructive torque of the logistics vehicle steering telescopic shaft, which affects the accuracy and efficiency of incoming material detection and after-sales analysis.
A telescopic shaft damage torque testing device is designed, including connecting shafts and sleeves. By setting grooves, through holes and splines, the torque wrench is used to directly test the damage torque of the telescopic shaft, simplifying the detection process.
It realizes rapid and accurate testing of the destructive torque of the telescopic shaft, shortens the detection time, improves work efficiency, ensures the authenticity and safety of the test results, and reduces the cost of equipment purchase.
Smart Images
Figure CN222189022U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of telescopic shaft breaking torque testing, in particular to a telescopic shaft breaking torque testing device. Background Art
[0002] At present, the items of incoming material inspection and after-sales inspection of the steering telescopic shaft of logistics vehicles generally include salt spray test, adhesion test, paint film thickness test, hot and cold shock test, durability test, etc., but there is a lack of a fast, effective, convenient and reliable method and device to test the key item of destructive torque and the problem of after-sales steering telescopic shaft fracture, which has a certain impact on the test results and the overall evaluation of the steering telescopic shaft. Therefore, in order to evaluate the steering telescopic shaft in a multi-dimensional and more realistic way, meet the needs of incoming material inspection and after-sales analysis, and at the same time ensure the accuracy and effectiveness of the inspection test, save inspection time and improve test efficiency is very important. Utility Model Content
[0003] The main purpose of the utility model is to provide a telescopic shaft breaking torque testing device to solve the problem that the telescopic shaft breaking torque in the prior art has standard requirements but no testing means.
[0004] In order to achieve the above-mentioned purpose, according to one aspect of the utility model, a telescopic shaft destructive torque testing device is provided, comprising: a connecting shaft, a first end of the connecting shaft is provided with a groove, the groove forms an installation position for installing a torque wrench; a sleeve, one end of the sleeve is connected to the second end of the connecting shaft, and the other end of the sleeve is provided with an installation position connected to the telescopic shaft to be tested.
[0005] Furthermore, the connecting shaft is provided with: a first through hole, there are two first through holes, the two first through holes are arranged oppositely on the side wall of the first end of the connecting shaft, and each first through hole is connected to the groove; a second through hole, there are two second through holes, the axes of the two second through holes are arranged at a preset angle, and the two second through holes are connected, and the two second through holes are arranged at the second end of the connecting shaft.
[0006] Furthermore, a plurality of third through holes are provided at one end of the sleeve close to the connecting shaft, and the third through holes are arranged through the side wall of the sleeve. Two third through holes arranged opposite to each other along the central axis of the sleeve form a connecting hole group, wherein the plurality of third through holes form two connecting hole groups, and the two connecting hole groups are arranged one-to-one correspondingly to the two second through holes.
[0007] Furthermore, when a connecting hole group is connected to the corresponding second through hole, the connecting pin is inserted into the second through hole and the two third through holes to connect the sleeve to the connecting shaft.
[0008] Furthermore, a spline is provided on the inner wall of the sleeve, and the sleeve is connected to the telescopic shaft to be tested via the spline.
[0009] Furthermore, the connecting shaft also includes: a first connecting part, a groove and a first through hole are arranged at the first end of the first connecting part, and the torque wrench is connected to the first connecting part through the first through hole; a second connecting part, a second through hole is arranged on the second connecting part, one end of the second connecting part is connected to the second end of the first connecting part, and the sleeve is connected to the second connecting part through the second through hole and the third through hole.
[0010] Furthermore, the diameter of the first connecting portion is R, 32 mm ≤ R ≤ 36 mm, and the length of the first connecting portion is L, 38 mm ≤ L ≤ 42 mm.
[0011] Furthermore, the diameter r of the second connecting portion is 22mm≤r≤26mm, and the length of the second connecting portion is l, 38mm≤l≤42mm.
[0012] Furthermore, the diameters of the first through hole, the second through hole and the third through hole are all O, 5mm≤O≤7mm.
[0013] Furthermore, the connecting shaft is made of SUS304 stainless steel.
[0014] By applying the technical solution of the utility model, a connecting shaft and a sleeve are arranged, a groove is arranged at the first end of the connecting shaft, the groove forms a connecting position for installing a torque wrench, the sleeve is provided with a connecting hole, a part of the connecting shaft is arranged in the sleeve and connected to the sleeve, and the sleeve is away from one end of the connecting shaft to form an installation position for placing the telescopic shaft to be tested, so that the destructive torque of the telescopic shaft can be directly tested by the torque wrench, which effectively shortens the detection time and improves the work efficiency of the tester. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:
[0016] Figure 1 A schematic structural diagram of a first embodiment of a connecting shaft according to the utility model is shown;
[0017] Figure 2 A schematic structural diagram of an embodiment of a sleeve according to the utility model is shown;
[0018] Figure 3 A schematic structural diagram of a first embodiment of a telescopic shaft breaking torque testing device according to the utility model is shown;
[0019] Figure 4 A schematic structural diagram of a second embodiment of a connecting shaft according to the utility model is shown;
[0020] Figure 5 A schematic structural diagram of a second embodiment of a telescopic shaft breaking torque testing device according to the utility model is shown;
[0021] Figure 6 A structural schematic diagram of a third embodiment of a telescopic shaft breaking torque testing device according to the utility model is shown.
[0022] The above drawings include the following reference numerals:
[0023] 10. connecting shaft; 100. groove; 11. first through hole; 12. second through hole; 13. first connecting portion; 14. second connecting portion;
[0024] 20. Sleeve; 21. Third through hole. DETAILED DESCRIPTION
[0025] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present utility model will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0027] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0028] Now, exemplary embodiments according to the present application will be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in a variety of different forms and should not be construed as being limited to the embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present application thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. In the accompanying drawings, for the sake of clarity, the thickness of the layers and regions may be enlarged, and the same reference numerals are used to represent the same devices, and thus their descriptions will be omitted.
[0029] Combination Figures 1 to 6 As shown, according to a specific embodiment of the present application, a telescopic shaft breaking torque testing device is provided.
[0030] Specifically, a telescopic shaft destructive torque testing device includes: a connecting shaft 10, a first end of the connecting shaft 10 is provided with a groove 100, and the groove 100 forms an installation position for installing a torque wrench; a sleeve 20, one end of the sleeve 20 is connected to the second end of the connecting shaft 10, and the other end of the sleeve 20 is provided with an installation position connected to the telescopic shaft to be tested.
[0031] In this embodiment, Figure 1 , Figure 3 , Figure 4 As shown, a connecting shaft and a sleeve are provided, a groove is provided at the first end of the connecting shaft, the groove forms a connecting position for installing a torque wrench, the sleeve is provided with a connecting hole, a part of the connecting shaft is arranged in the sleeve and connected to the sleeve, and an installation position for placing the telescopic shaft to be tested is formed at one end of the sleeve away from the connecting shaft, so that the destructive torque of the telescopic shaft can be directly tested by a torque wrench, which effectively shortens the detection time and improves the work efficiency of the tester.
[0032] Further, the connecting shaft 10 is provided with: a first through hole 11, there are two first through holes 11, the two first through holes 11 are oppositely arranged on the side wall of the first end of the connecting shaft 10, and each first through hole 11 is connected to the groove 100; a second through hole 12, there are two second through holes 12, the axes of the two second through holes 12 are arranged at a preset angle, and the two second through holes 12 are connected, and the two second through holes 12 are arranged at the second end of the connecting shaft 10. This arrangement enables the torque wrench to be connected to the connecting shaft 10 through the first through hole 11, and the sleeve 20 to be connected to the connecting shaft 10 through the second through hole 12, which effectively improves the convenience of installing the telescopic shaft destructive torque test device and the stability of the connecting shaft 10.
[0033] like Figure 2As shown, a plurality of third through holes 21 are provided at one end of the sleeve 20 close to the connecting shaft 10, and the third through holes 21 are arranged through the side wall of the sleeve 20, and two third through holes 21 arranged opposite to each other along the central axis of the sleeve 20 form a connecting hole group, wherein the plurality of third through holes 21 form two connecting hole groups, and the two connecting hole groups are arranged one-to-one with the two second through holes 12. Such an arrangement effectively ensures the stable connection between the sleeve 20 and the connecting shaft 10, and effectively prevents the phenomenon of the sleeve 20 and the connecting shaft 10 being broken when the telescopic shaft damaging torque test device is working.
[0034] Furthermore, when one connection hole group is connected to the corresponding second through hole 12, the connection pin is inserted into the second through hole 12 and the two third through holes 21 to connect the sleeve 20 to the connecting shaft 10. This arrangement effectively prevents the telescopic shaft from breaking the sleeve 20 and the connecting shaft 10 when the torque test device is working.
[0035] like Figure 5 , Figure 6 As shown, the connecting shaft 10 further includes: a first connecting portion 13, a groove 100 and a first through hole 11 are arranged at a first end of the first connecting portion 13, and a torque wrench is connected to the first connecting portion 13 through the first through hole 11; a second connecting portion 14, a second through hole 12 is arranged on the second connecting portion 14, one end of the second connecting portion 14 is connected to the second end of the first connecting portion 13, and a sleeve 20 is connected to the second connecting portion 14 through the second through hole 12 and the third through hole 21. This arrangement enables the telescopic shaft breaking torque test device to be connected to different telescopic shafts, thereby ensuring the diversity of the connecting shaft 10.
[0036] Furthermore, the diameter of the first connection portion 13 is R, 32 mm ≤ R ≤ 36 mm, and the length of the first connection portion 13 is L, 38 mm ≤ L ≤ 42 mm. This arrangement effectively improves the hardness and stability of the first connection portion 13.
[0037] In another embodiment of the present application, the diameter r of the second connection portion 14 is 22 mm ≤ r ≤ 26 mm, and the length l of the second connection portion 14 is 38 mm ≤ l ≤ 42 mm. This arrangement effectively improves the hardness and stability of the second connection portion 14.
[0038] Furthermore, the diameters of the first through hole 11, the second through hole 12 and the third through hole 21 are all 0, 5mm≤0≤7mm. This arrangement effectively improves the stability of the first through hole 11, the second through hole 12 and the third through hole 21, and effectively prevents the first through hole 11, the second through hole 12 and the third through hole 21 from being damaged.
[0039] Specifically, the connecting shaft 10 is made of SUS304 stainless steel, which effectively improves the hardness of the connecting shaft 10, effectively prevents the connecting shaft 10 from breaking during operation, and improves the service life of the connecting shaft 10.
[0040] In another embodiment of the present application, the connecting shaft to be tested is rigidly connected to the corresponding steering telescopic shaft sleeve by screws. After the device is assembled, the telescopic shaft body is inserted into the other end of the sleeve, and the body is completely fixed by a bench vise or other means. At this time, the torque wrench can be turned until the telescopic shaft is broken, thereby obtaining the breaking torque data of the telescopic shaft. Multiple tests of two types of telescopic shafts in sequence can obtain the average breaking torque level of the batch of supplies and compare it with the required technical parameters.
[0041] When testing the torque under specific conditions:
[0042] 1) Use different forces to operate the steering wheel and test the torque on the telescopic steering shaft:
[0043] After removing the sleeve of the connecting shaft to be tested, insert it into the device of the corresponding connecting shaft model and fix it. While operating the steering wheel with different forces, the value on the torque wrench can be directly read. The torque change when the steering wheel is fully turned or during the process in the zero-power state can be tested.
[0044] 2) Test the actual output torque of the power steering pump under different loads:
[0045] After removing the sleeve of the connecting shaft to be tested, insert it into the device of the corresponding connecting shaft model and fix it. When adjusting different load parameters to make the power steering pump work, the value on the torque wrench can be directly read to obtain the actual output torque of the power steering pump.
[0046] From the above description, it can be seen that the above embodiments of the utility model achieve the following technical effects:
[0047] The device can be used to quickly test the destructive torque of the steering telescopic shaft of the logistics vehicle, and the torque size under specific conditions can be tested with the help of a tooling model. The test procedure is simple and easy to operate, which shortens the detection time and improves the work efficiency of the testers; at the same time, it ensures the authenticity, validity and accuracy of the test results; the device is safe and reliable, and is rigidly connected to the telescopic shaft by screws, which reduces potential safety hazards and risks during the test; in addition, it also saves the purchase cost of the test and inspection equipment.
[0048] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0049] In addition to the above, it should be noted that "one embodiment", "another embodiment", "embodiment", etc. mentioned in this specification refer to the specific features, structures or characteristics described in conjunction with the embodiment included in at least one embodiment generally described in this application. The same expression appearing in multiple places in the specification does not necessarily refer to the same embodiment. Further, when describing a specific feature, structure or characteristic in conjunction with any embodiment, it is claimed that the realization of such feature, structure or characteristic in conjunction with other embodiments also falls within the scope of the present utility model.
[0050] In the above embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.
[0051] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. A telescopic shaft breaking torque test device, characterized in that: include: A connecting shaft (10), wherein a first end of the connecting shaft (10) is provided with a groove (100), wherein the groove (100) forms an installation position for installing a torque wrench; A sleeve (20), one end of the sleeve (20) is connected to the second end of the connecting shaft (10), and the other end of the sleeve (20) is provided with an installation position connected to the telescopic shaft to be tested.
2. The telescopic shaft breaking torque testing device according to claim 1, characterized in that: The connecting shaft (10) is provided with: A first through hole (11), wherein there are two first through holes (11), the two first through holes (11) are arranged oppositely on the side wall of the first end of the connecting shaft (10), and each of the first through holes (11) is connected to the groove (100); A second through hole (12), wherein there are two second through holes (12), the axes of the two second through holes (12) are arranged at a preset angle, and the two second through holes (12) are connected, and the two second through holes (12) are arranged at the second end of the connecting shaft (10).
3. The telescopic shaft breaking torque testing device according to claim 2, characterized in that: A plurality of third through holes (21) are provided at one end of the sleeve (20) close to the connecting shaft (10), and the third through holes (21) are arranged through the side wall of the sleeve (20), and two third through holes (21) arranged opposite to each other along the central axis of the sleeve (20) form a connecting hole group, wherein the plurality of third through holes (21) form two connecting hole groups, and the two connecting hole groups are arranged in one-to-one correspondence with the two second through holes (12).
4. The telescopic shaft breaking torque testing device according to claim 3, characterized in that: When one of the connection hole groups is connected to the corresponding second through hole (12), a connection pin is inserted into the second through hole (12) and the two third through holes (21) to connect the sleeve (20) to the connection shaft (10).
5. The telescopic shaft breaking torque testing device according to claim 4, characterized in that: The inner wall of the sleeve (20) is provided with a spline, and the sleeve (20) is connected to the telescopic shaft to be tested via the spline.
6. The telescopic shaft breaking torque testing device according to claim 5, characterized in that: The connecting shaft (10) further comprises: A first connecting portion (13), the groove (100) and the first through hole (11) being arranged at a first end of the first connecting portion (13), and the torque wrench being connected to the first connecting portion (13) via the first through hole (11); A second connecting portion (14), the second through hole (12) being arranged on the second connecting portion (14), one end of the second connecting portion (14) being connected to the second end of the first connecting portion (13), and the sleeve (20) being connected to the second connecting portion (14) via the second through hole (12) and the third through hole (21).
7. The telescopic shaft breaking torque testing device according to claim 6, characterized in that: The diameter of the first connecting portion (13) is R, 32 mm ≤ R ≤ 36 mm, and the length of the first connecting portion (13) is L, 38 mm ≤ L ≤ 42 mm.
8. The telescopic shaft breaking torque testing device according to claim 6, characterized in that: The diameter r of the second connecting portion (14) is 22 mm ≤ r ≤ 26 mm, and the length l of the second connecting portion (14) is 38 mm ≤ l ≤ 42 mm.
9. The telescopic shaft breaking torque testing device according to claim 3, characterized in that: The diameters of the first through hole (11), the second through hole (12) and the third through hole (21) are all 0, 5mm≤0≤7mm.
10. The telescopic shaft breaking torque testing device according to claim 1, characterized in that: The connecting shaft (10) is made of SUS304 stainless steel.