CN222299122U - Pull-out detection device and detection system - Google Patents

Abstract

The present application relates to the field of vehicle manufacturing technology, and in particular to a pull-out detection device and a detection system. 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 an external supporting member; the handle can enable the detection fork arm to apply an axial force to the shaft to be detected. According to the pull-out detection device and the detection system of the present application, the problem that there is no device in the prior art to detect whether the drive shaft retaining ring is installed in place is solved.

Description

Pull-out detection device and detection system

Technical Field

The application relates to the technical field of vehicle manufacturing, in particular to a pull-out detection device and a detection system.

Background

The drive shaft is the important part in the automobile transmission system, and the drive shaft is spline connection with the differential mechanism generally, and the axial positioning of spline pair relies on circular snap ring, if the snap ring can not get into in the snap ring groove, then external spline can follow axial displacement, leads to spline pair to can not atress completely, and then produces the spline and loses efficacy in advance, the unable normal condition of going of vehicle.

Therefore, detection of whether the drive shaft snap ring is in place is necessary, however, there is no device for detecting whether the drive shaft snap ring is in place in the prior art.

Disclosure of utility model

The application aims to provide a pull-out detection device and a detection system, so that the problem that a device for detecting whether a driving shaft clamping ring is installed in place is not available in the prior art is solved.

According to the first aspect of the application, the extraction detection device comprises a detection fork arm and a torque wrench, wherein a torque value is preset in the torque wrench, the torque wrench comprises a handle, the detection fork arm is connected with the torque wrench, the detection fork arm can clamp a shaft to be detected, a fulcrum of the detection fork arm can be abutted with an external supporting member, and the detection fork arm can apply axial force to the shaft to be detected through the handle.

In any of the above technical solutions, further, the detecting fork arm is detachably connected with the torque wrench.

In any of the above technical solutions, further, the pull-out detection device includes a plurality of detection prongs with different sizes, and the plurality of detection prongs with different sizes are alternatively connected with the torque wrench.

In any of the above technical solutions, the torque wrench further includes a torque adjusting mechanism, the torque adjusting mechanism is capable of adjusting a set torque value, and a ratio of a distance from the fulcrum to a handle force application point to a distance from a stress point of the shaft to be detected to the fulcrum is 8 to 10.

In any of the above technical solutions, further, the head of the detecting fork arm is U-shaped, and the head of the detecting fork arm can clamp the shaft to be detected.

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 that of the shaft to be detected.

In any of the above technical solutions, further, the protective layer is a rubber protective layer.

According to a second aspect of the present application there is provided a detection system comprising a pull-out detection device as described above, the detection system further comprising the shaft to be detected.

In any of the above technical solutions, the detection system further comprises a transmission assembly to be detected, wherein the shaft to be detected is a driving shaft, and the driving shaft is in spline connection with the transmission assembly.

In any of the above technical solutions, further, the transmission assembly further comprises a differential, the driving shaft is in spline connection with the differential, the differential comprises a housing, and the fulcrum of the detection fork arm can be abutted with the housing.

According to the pull-out detection device of the application, the pull-out detection device comprises a detection fork arm and a torque wrench. The torque wrench is preset with a torque value, the torque wrench comprises a handle, a detection fork arm is connected with the torque wrench, the detection fork arm can clamp a shaft to be detected, a fulcrum of the detection fork arm can be abutted with an external supporting member, and the handle can enable the detection fork arm to apply axial force to the shaft to be detected.

According to the technical characteristics, the application has the beneficial effects that:

specifically, when detecting whether the shaft is installed in place by using the pull-out detection device:

Firstly, according to the pulling-out detection force of a driving shaft (according to the drawing requirement), a moment value is preset on a moment spanner, then a detection fork arm clamps the shaft to be detected, a pulling-out detection device is vertical to the shaft to be detected, then a fulcrum of the detection fork arm is abutted against an external supporting member, then the handle is held for applying force, at the moment, the support with the fulcrum can enable the detection fork arm to apply axial force to the shaft to be detected through a handle, and finally, when the moment value set by the moment spanner is reached, the moment spanner gives out a click sound to remind an operator of detection completion, and the shaft to be detected is installed in place at the moment.

In order to make the above objects, features and advantages of the present application more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view showing an overall structure of a pull-out detecting device according to an embodiment of the present application;

Fig. 2 shows a force diagram of a pull-out detection device according to an embodiment of the application.

The icon comprises a 100-detection fork arm, a 101-head, a 200-moment spanner, a 201-handle, a 202-moment adjusting mechanism and an a-fulcrum.

Detailed Description

The following detailed description is provided to assist the reader in obtaining a thorough understanding of the methods, apparatus, and/or systems described herein. However, various changes, modifications, and equivalents of the methods, apparatuses, and/or systems described herein will be apparent after an understanding of the present disclosure. For example, the order of operations described herein is merely an example, and is not limited to the order set forth herein, but rather, obvious variations may be made upon an understanding of the present disclosure, other than operations that must occur in a specific order. In addition, descriptions of features known in the art may be omitted for the sake of clarity and conciseness.

The features described herein may be embodied in different forms and should not be construed as limited to the examples described herein. Rather, the examples described herein have been provided solely 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 present disclosure.

In the entire specification, when an element (such as a layer, region or substrate) is described as being "on", "connected to", "bonded to", "over" or "covering" another element, it may be directly "on", "connected to", "bonded to", "over" or "covering" another element or there may be one or more other elements interposed therebetween. In contrast, when an element is referred to as being "directly on," directly connected to, "or" directly coupled to, "another element, directly on," or "directly covering" the other element, there may be no other element intervening therebetween.

As used herein, the term "and/or" includes any one of the listed items of interest and any combination of any two or more.

Although terms such as "first," "second," and "third" may be used herein to describe various elements, components, regions, layers or sections, these elements, components, regions, layers or sections should not be limited by these terms. Rather, these terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first member, component, region, layer or section discussed in examples described herein could also be termed a second member, component, region, layer or section without departing from the teachings of the examples.

For ease of description, spatial relationship terms such as "above," "upper," "below," and "lower" may be used herein to describe one element's relationship to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "above" or "upper" relative to another element would then be oriented "below" or "lower" relative to the other element. Thus, the term "above" includes both "above" and "below" depending on the spatial orientation of the device. The device may also be otherwise positioned (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. Singular forms also are intended to include plural forms unless the context clearly indicates otherwise. The terms "comprises," "comprising," and "having" are intended to specify the presence of stated features, integers, operations, elements, and/or groups thereof, but do not preclude the presence or addition of one or more other features, integers, operations, elements, and/or groups thereof.

Variations from the shapes of the illustrations as a result, of manufacturing techniques and/or tolerances, are to be expected. Accordingly, the examples described herein are not limited to the particular shapes shown in the drawings, but include changes in shapes that occur during manufacture.

The features of the examples described herein may be combined in various ways that will be apparent upon an understanding of the present disclosure. Further, while the examples described herein have a variety of configurations, other configurations are possible as will be apparent after an understanding of the present disclosure.

The first aspect of the present application provides a pull-out detection device, thereby solving the problem that there is no device for detecting whether the drive shaft snap ring is in place in the prior art.

The pull-out detection device according to some embodiments of the present application will be described in detail below with reference to fig. 1 and 2.

The pull-out detection device of the present application includes a detection yoke 100 and a torque wrench 200. The moment spanner 200 is preset with a moment value M, the moment spanner 200 comprises a handle 201, the detection fork arm 100 is connected with the moment spanner 200, the detection fork arm 100 can clamp a shaft to be detected, a fulcrum a of the detection fork arm 100 can be abutted with an external supporting member, and the handle 201 can enable the detection fork arm 100 to apply axial force to the shaft to be detected.

According to the technical characteristics, the application has the beneficial effects that:

Specifically, when the pull-out detection device is used to detect whether the shaft is in place, for example, when detecting whether the driving shaft snap ring is in place:

first, a torque value M is preset in the torque wrench 200 according to a pull-out detection force (as required in the drawing) of the drive shaft.

Then, the detection fork arm 100 is clamped to the driving shaft to be detected, and the detection device is pulled out to be perpendicular to the driving shaft to be detected.

Then, the fulcrum a of the detection fork arm 100 is abutted against the external support member, and the handle is gripped to apply force. At this time, with the support of the fulcrum a, the detection yoke 100 can be made to apply an axial force to the drive shaft to be detected by the handle 201.

Finally, when the moment value M set by the moment wrench 200 is reached, the moment wrench 200 makes a click sound to remind an operator of detection completion, and the driving shaft snap ring is installed in place at the moment.

In the embodiment of the present application, the moment value M of the moment wrench 200 is preset as follows:

As shown in fig. 2, where 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 of the force receiving point of the drive shaft from the fulcrum a (measurable, specifically, according to the field mechanism), L2 is the predetermined distance of the fulcrum a from the force receiving point of the handle 201 (measurable, specifically, according to the field mechanism), and L3 is the predetermined distance of the torque wrench 200 from the force receiving point of the handle 201 (measurable, specifically, according to the field mechanism. Torque value m=f2×l3 of the torque wrench 200).

Based on the principle of the pull-out detection device, f1×l1=f2×l2, it can be obtained that F2, F2 is usually 70N-100N. Thus, the torque value m=f2×l3 of the torque wrench 200 can be obtained.

Further, in embodiments of the present application, the lever ratio L2/L1 is preferably generally selected to be 8-10.

In the embodiment of the application, the shape of the detecting fork arms 100 can be designed according to the driving shaft and the transmission of a specific vehicle type, and a plurality of detecting fork arms 100 can be replaced and can be alternatively connected with the torque wrench 200 in a detachable manner on a production line according to the detecting requirements of different vehicle types.

In an embodiment of the present application, as shown in fig. 1, the head 101 of the detecting fork arm 100 may be U-shaped, and the head 101 of the detecting fork arm 100 may be capable of clamping a 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 smaller than that of the shaft to be detected, so as to prevent the surface paint layer of the shaft to be detected from being scratched in the detection process. As an example, the protective layer may be a rubber protective layer.

Furthermore, in the embodiment of the present application, as shown in fig. 1, the torque wrench 200 further includes a torque adjustment mechanism 202, and the torque adjustment mechanism 202 is capable of adjusting the set torque value M. The torque value M can be adjusted as required, and the tool has good versatility (it should be noted here that the torque adjusting mechanism 202 provided with the torque wrench 200 belongs to the prior art, and will not be described in detail here).

A second aspect of the application provides a detection system comprising a pull-out detection device as described above and a shaft to be detected.

Further, the detection system also comprises a transmission assembly to be detected, and the shaft (driving shaft) to be detected is in spline connection with the transmission assembly.

By way of example, the transmission assembly further includes a differential having a drive shaft splined thereto, the differential including a housing with which the fulcrum a of the sensing fork arm 100 is capable of abutment.

Specifically, when the pull-out detection device is used for detecting whether the driving shaft clamping ring is installed in place, for example, when detecting whether the driving shaft clamping ring and the differential mechanism are installed in place:

first, a torque value M is preset in the torque wrench 200 according to a pull-out detection force (as required in the drawing) of the drive shaft.

Then, the detection fork arm 100 is clamped to the driving shaft to be detected, and the detection device is pulled out to be perpendicular to the driving shaft to be detected.

Then, the fulcrum a of the detection fork arm 100 is abutted against the housing of the differential, and the handle is held to apply force, and at this time, the detection fork arm 100 can be made to apply an axial force to the drive shaft to be detected by the handle 201 with the support of the fulcrum a.

Finally, when the moment value M set by the moment wrench 200 is reached, the moment wrench 200 makes a click sound to remind an operator of detection completion, and the driving shaft snap ring is installed in place at the moment.

In addition, after hearing the click sound, the operator stops applying force, and prevents the drive shaft from being pulled out by mistake by continuing to apply force.

It should be noted that the foregoing embodiments are merely illustrative embodiments of the present application, and not restrictive, and the scope of the application is not limited to the embodiments, and although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that any modification, variation or substitution of some of the technical features of the embodiments described in the foregoing embodiments may be easily contemplated within the scope of the present application, and the spirit and scope of the technical solutions of the embodiments do not depart from the spirit and scope of the embodiments of the present application.

Claims (10)

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 , wherein the detection fork arm is detachably connected to the torque wrench. 3 . 3. The pull-out detection device according to claim 1, characterized in that the pull-out detection device comprises 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 further comprises a torque adjustment mechanism, and the torque adjustment mechanism 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 , wherein 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 , wherein 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. 7 . The pull-out detection device according to claim 6 , wherein 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 also comprises the shaft to be detected. 9. The detection system according to claim 8, characterized in that the detection system further comprises 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 comprises 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.