Pull-out detection device and detection system
By providing a pull-out detection device including detection wishbone and torque wrench, the problem of lack of detection detection drive shaft clamp ring in the prior art is solved, and effective detection and installation confirmation of drive shaft clamp ring is realized to ensure the normal operation of the vehicle .
Patent Information
- Application Number
- CN202323536059.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-22
- Publication Date
- 2025-01-03
- Estimated Expiration
- 2033-12-22
AI Technical Summary
The prior art lacks a device to detect whether the drive shaft snap ring is installed in place, which may cause the vehicle to fail to drive normally.
Provided is a pull-out detection device, including a detection wishbone and a torque wrench, which is connected to the detection wishbone through a torque wrench with a preset torque value. The detection wishbone can clamp the shaft to be detected and abut with an external support member, and is applied through a handle. Axial force, when the set torque value is reached, it emits a "click" sound to remind you to install it in place.
Effectively detect whether the drive shaft snap ring is installed in place to ensure the normal operation of the vehicle, remind the operator to complete the inspection through a "click" sound, and prevent the drive shaft from accidentally falling out of the drive shaft.
Smart Images
Figure CN222299122U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of vehicle manufacturing technology, and in particular to a pull-out detection device and a detection system. Background Art
[0002] The drive shaft is an important component in the automobile transmission system. Usually, the drive shaft and the differential are splined. The axial positioning of the spline pair relies on a circular retaining ring. If the retaining ring fails to enter the retaining ring groove, the external spline will move axially, causing the spline pair to not be fully stressed, resulting in premature failure of the spline and the inability of the vehicle to drive normally.
[0003] Therefore, it is necessary to detect whether the drive shaft retaining ring is installed in place. However, there is no device for detecting whether the drive shaft retaining ring is installed in place in the prior art. Utility Model Content
[0004] The purpose of the present application is to provide a pull-out detection device and a detection system, thereby solving the problem in the prior art that there is no device for detecting whether the drive shaft retaining ring is installed in place.
[0005] According to a first aspect of the present application, a pull-out detection device is provided, which includes a detection fork arm and a torque wrench; the torque wrench is pre-set with a torque value, and the torque wrench includes a handle; the detection fork arm is connected to the torque wrench; the detection fork arm can clamp the shaft to be detected, and the fulcrum of the detection fork arm can abut against an external supporting member; the handle can be used to enable the detection fork arm to apply an axial force to the shaft to be detected.
[0006] In any of the above technical solutions, further, the detection fork arm is detachably connected to the torque wrench.
[0007] In any of the above technical solutions, further, the pull-out detection device includes a plurality of detection fork arms of different sizes; and the plurality of detection fork arms of different sizes are replaceably connected to the torque wrench.
[0008] In any of the above technical solutions, further, the torque wrench also includes a torque adjustment mechanism, which can adjust the set torque value; the ratio of the distance from the fulcrum to the handle force application point to the distance from the force point of the axis to be detected to the fulcrum is 8 to 10.
[0009] In any of the above technical solutions, further, the head of the detection fork arm is U-shaped, and the head of the detection fork arm can clamp the shaft to be detected.
[0010] In any of the above technical solutions, further, a protective layer is provided on the inner side of the head, and the hardness of the protective layer is smaller than the hardness of the shaft to be detected.
[0011] In any of the above technical solutions, further, the protective layer is a rubber protective layer.
[0012] According to a second aspect of the present application, a detection system is provided, comprising the pull-out detection device as described above, and the detection system further comprises the shaft to be detected.
[0013] In any of the above technical solutions, further, the detection system also includes a transmission assembly to be detected; the shaft to be detected is a drive shaft, and the drive shaft is spline-connected to the transmission assembly.
[0014] In any of the above technical solutions, further, the transmission assembly also includes a differential, the drive shaft is spline-connected to the differential; the differential includes a housing, and the fulcrum of the detection fork arm can abut against the housing.
[0015] According to the pull-out detection device of the present application, the pull-out detection device includes a detection fork arm and a torque wrench. The torque wrench is pre-set with a torque value, and the torque wrench includes a handle; the detection fork arm is connected to the torque wrench; the detection fork arm can clamp the shaft to be detected, and the fulcrum of the detection fork arm can abut against the external support member; the handle can make the detection fork arm apply axial force to the shaft to be detected.
[0016] According to the above technical features, the beneficial effects of this application are:
[0017] When using the pull-out detection device to detect whether the shaft is installed in place:
[0018] First, according to the pull-out detection force of the drive shaft (as required by the drawing), pre-set the torque value on the torque wrench; then, clamp the shaft to be detected with the detection fork arm, and the pull-out detection device is perpendicular to the shaft to be detected; then, abut the fulcrum of the detection fork arm against the external supporting member, and then hold the handle to apply force; at this time, with the support of the fulcrum, the detection fork arm can apply axial force to the shaft to be detected through the handle; finally, when the torque value set by the torque wrench is reached, the torque wrench makes a "click" sound to remind the operator that the detection is completed, indicating that the shaft to be detected is now in place.
[0019] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are specifically cited below and described in detail with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.
[0021] Figure 1 A schematic diagram showing the overall structure of a pull-out detection device according to an embodiment of the present application is shown;
[0022] Figure 2 A force diagram of a pull-out detection device according to an embodiment of the present application is shown.
[0023] Icon: 100-detection fork arm; 101-head; 200-torque wrench; 201-handle; 202-torque adjustment mechanism; a-fulcrum. DETAILED DESCRIPTION
[0024] The following specific embodiments are provided to help the reader obtain a comprehensive understanding of the methods, devices and / or systems described herein. However, after understanding the disclosure of the present application, various changes, modifications and equivalents of the methods, devices and / or systems described herein will be apparent. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but in addition to the operations that must occur in a particular order, changes that will be apparent after understanding the disclosure of the present application may be made. In addition, in order to improve clarity and brevity, descriptions of features known in the art may be omitted.
[0025] The features described herein may be implemented in different forms and should not be interpreted as being limited to the examples described herein. Rather, the examples described herein have been provided only to illustrate some of the many possible ways of implementing the methods, devices and / or systems described herein that will be apparent after understanding the disclosure of the present application.
[0026] Throughout the specification, when an element (such as a layer, a region, or a substrate) is described as being “on”, “connected to”, “bound to”, “over”, or “covering” another element, it may be directly “on”, “connected to”, “bound to”, “over”, or “covering” another element, or one or more other elements may be present between them. In contrast, when an element is described as being “directly on”, “directly connected to”, “directly bound to”, “directly over”, or “directly covering” another element, there may be no other elements present between them.
[0027] As used herein, the term "and / or" includes any one of the associated listed items and any combination of any two or more items.
[0028] Although terms such as "first," "second," and "third" may be used herein to describe various members, components, regions, layers, or portions, these members, components, regions, layers, or portions are not limited by these terms. Rather, these terms are only used to distinguish one member, component, region, layer, or portion from another member, component, region, layer, or portion. Therefore, without departing from the teachings of the examples described herein, the first member, component, region, layer, or portion referred to may also be referred to as the second member, component, region, layer, or portion.
[0029] For ease of description, spatial relational terms such as "above", "upper", "below", and "lower" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. Such spatial relational terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the accompanying drawings. For example, if the device in the accompanying drawings is turned over, an element described as being "above" or "upper" relative to another element will subsequently be "below" or "lower" relative to the other element. Therefore, the term "above" includes both "above" and "below" orientations depending on the spatial orientation of the device. The device may also be positioned in other ways (e.g., rotated 90 degrees or in other orientations), and the spatial relational terms used herein will be interpreted accordingly.
[0030] The terms used herein are only used to describe various examples and are not used to limit the present disclosure. Unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. The terms "include", "comprise" and "have" list the stated features, quantities, operations, components, elements and / or their combinations that exist, but do not exclude the existence or addition of one or more other features, quantities, operations, components, elements and / or their combinations.
[0031] Variations in the shapes shown in the drawings may occur due to manufacturing techniques and / or tolerances. Therefore, the examples described herein are not limited to the specific shapes shown in the drawings but include variations in shapes that occur during manufacturing.
[0032] The features of the examples described herein may be combined in various ways that will be apparent after understanding the disclosure of the present application. In addition, although the examples described herein have various configurations, other configurations are possible as will be apparent after understanding the disclosure of the present application.
[0033] A first aspect of the present application provides a pull-out detection device, thereby solving the problem in the prior art that there is no device for detecting whether the drive shaft retaining ring is properly installed.
[0034] The following will refer to Figure 1 and Figure 2 The pull-out detection device according to some embodiments of the present application is described in detail.
[0035] The extraction detection device of the present application includes a detection fork arm 100 and a torque wrench 200. The torque wrench 200 is pre-set with a torque value M, and the torque wrench 200 includes a handle 201; the detection fork arm 100 is connected to the torque wrench 200; the detection fork arm 100 can clamp the shaft to be detected, and the fulcrum a of the detection fork arm 100 can abut against the external support member; the handle 201 can enable the detection fork arm 100 to apply an axial force to the shaft to be detected.
[0036] According to the above technical features, the beneficial effects of this application are:
[0037] When using the pull-out detection device to detect whether the shaft is installed in place, for example, when detecting whether the drive shaft retaining ring is installed in place:
[0038] First, according to the pull-out detection force of the drive shaft (as required by the drawing), a torque value M is pre-set on the torque wrench 200 .
[0039] Then, the detection fork arm 100 is clamped to the drive shaft to be detected, and the detection device is pulled out perpendicular to the drive shaft to be detected.
[0040] Next, the fulcrum a of the detection fork arm 100 is abutted against the external support member, and then the handle is held to apply force. At this time, with the support of the fulcrum a, the detection fork arm 100 can apply axial force to the drive shaft to be detected through the handle 201.
[0041] Finally, when the torque value M set by the torque wrench 200 is reached, the torque wrench 200 emits a "click" sound to remind the operator that the detection is completed, indicating that the drive shaft retaining ring is now installed in place.
[0042] In the embodiment of the present application, the torque value M of the torque wrench 200 is pre-set as follows:
[0043] like Figure 2As shown, F1 is the pull-out detection force of the drive shaft (as required by the drawing); F2 is the force applied by the operator; L1 is the predetermined distance between the force point of the drive shaft and the fulcrum a (measurable, depending on the on-site mechanism); L2 is the predetermined distance between the fulcrum a and the force application point of the handle 201 (measurable, depending on the on-site mechanism); L3 is the predetermined distance between the torque wrench 200 and the force application point of the handle 201 (measurable, depending on the on-site mechanism. The torque value M of the torque wrench 200 = F2 × L3).
[0044] According to the principle of the pull-out detection device: F1×L1=F2×L2, F2 can be obtained, and F2 is usually selected as 70N-100N. Therefore, the torque value M of the torque wrench 200 can be obtained as F2×L3.
[0045] Further, in the embodiments of the present application, preferably, the leverage ratio L2 / L1 is generally selected to be 8-10.
[0046] In an embodiment of the present application, the shape of the detection fork arm 100 can be designed according to the drive shaft and transmission of a specific vehicle model; on the production line, to meet the detection requirements of different vehicle models, multiple detection fork arms 100 can be replaced and can be detachably connected to the torque wrench 200.
[0047] In the embodiments of the present application, Figure 1 As shown, the head 101 of the detection fork arm 100 can be U-shaped, and the head 101 of the detection fork arm 100 can clamp the shaft to be detected. Further, a protective layer is provided on the inner side of the head 101, and the hardness of the protective layer is less than the hardness of the shaft to be detected, so as to prevent the surface paint layer of the shaft to be detected from being scratched during the detection process. As an example, the protective layer can be a rubber protective layer.
[0048] In addition, in the embodiments of the present application, Figure 1 As shown, the torque wrench 200 also includes a torque adjustment mechanism 202, which can adjust the set torque value M. The torque value M can be adjusted as needed, and the tool has good versatility (it should be noted here that the torque adjustment mechanism 202 equipped with the torque wrench 200 belongs to the prior art and will not be described in detail here).
[0049] A second aspect of the present application provides a detection system, which includes the pull-out detection device as described above and a shaft to be detected.
[0050] Furthermore, the detection system also includes a transmission assembly to be detected, and the shaft to be detected (drive shaft) is spline-connected to the transmission assembly.
[0051] As an example, the transmission assembly further includes a differential, and the drive shaft is spline-connected to the differential; the differential includes a housing, and the fulcrum a of the detection fork arm 100 can abut against the housing.
[0052] Specifically, when using the pull-out detection device to detect whether the drive shaft snap ring is installed in place, for example, when detecting whether the drive shaft snap ring and the differential are installed in place:
[0053] First, according to the pull-out detection force of the drive shaft (as required by the drawing), a torque value M is pre-set on the torque wrench 200 .
[0054] Then, the detection fork arm 100 is clamped to the drive shaft to be detected, and the detection device is pulled out perpendicular to the drive shaft to be detected.
[0055] Next, the fulcrum a of the detection fork arm 100 is placed against the housing of the differential, and the handle is held to apply force. At this time, with the support of the fulcrum a, the detection fork arm 100 can apply axial force to the drive shaft to be detected through the handle 201.
[0056] Finally, when the torque value M set by the torque wrench 200 is reached, the torque wrench 200 emits a "click" sound to remind the operator that the detection is completed, indicating that the drive shaft retaining ring is now installed in place.
[0057] In addition, after hearing a "click" sound, the operator stops applying force to prevent the drive shaft from accidentally coming out by continuing to apply force.
[0058] Finally, it should be noted that the above-described embodiments are only specific implementation methods of the present application, which are used to illustrate the technical solutions of the present application rather than to limit them. The protection scope of the present application is not limited thereto. Although the present application has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that any technician familiar with this technical field can still modify the technical solutions recorded in the aforementioned embodiments within the technical scope disclosed in the present application, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application, and should all be covered by the protection scope of the present application.
Claims
1. A pull-out detection device, characterized in that: The pull-out detection device comprises a detection fork arm and a torque wrench; The torque wrench is preset with a torque value, and the torque wrench includes a handle; The detection fork arm is connected to the torque wrench; The detection fork arm can clamp the shaft to be detected, and the fulcrum of the detection fork arm can abut against the external supporting member; The handle can be used to enable the detection fork arm to apply an axial force to the shaft to be detected.
2. The pull-out detection device according to claim 1, characterized in that: The detection fork arm is detachably connected to the torque wrench.
3. The pull-out detection device according to claim 1, characterized in that: The extraction detection device includes a plurality of detection fork arms of different sizes; A plurality of detection fork arms of different sizes can be replaceably connected to the torque wrench.
4. The pull-out detection device according to claim 1, characterized in that: The torque wrench also includes a torque adjustment mechanism, which can adjust the set torque value; The ratio of the distance from the fulcrum to the force application point of the handle to the distance from the force point of the axis to be detected to the fulcrum is 8 to 10.
5. The pull-out detection device according to claim 1, characterized in that: The head of the detection fork arm is U-shaped, and the head of the detection fork arm can clamp the shaft to be detected.
6. The pull-out detection device according to claim 5, characterized in that: A protective layer is arranged on the inner side of the head, and the hardness of the protective layer is less than the hardness of the shaft to be detected.
7. The pull-out detection device according to claim 6, characterized in that: The protective layer is a rubber protective layer.
8. A detection system, characterized in that: The detection system comprises the pull-out detection device according to any one of claims 1 to 7, and the detection system further comprises the shaft to be detected.
9. The detection system according to claim 8, characterized in that: The detection system also includes a transmission assembly to be detected; The shaft to be detected is a drive shaft, and the drive shaft is spline-connected to the transmission assembly.
10. The detection system according to claim 9, characterized in that: The transmission assembly further includes a differential, and the drive shaft is spline-connected to the differential; The differential includes a housing, and a fulcrum of the detection fork arm can abut against the housing.