Torque detection mechanism

Abstract

The utility model discloses a torque detection mechanism. The torque detection mechanism comprises a rotating shaft and a profiling piece, wherein the profiling piece is vertically arranged at the lower part of the rotating shaft in a sliding manner and rotates synchronously with the rotating shaft; the elastic piece is used for connecting the profiling piece and the rotating shaft, and the profiling piece is pushed downwards to a static position relative to the rotating shaft by means of the elastic force of the elastic piece; the angle regulator torque detection mechanism can solve the problems that a traditional angle regulator torque detection mechanism is complex in detection structure and high in detection cost.

Description

Technical Field

[0001] The utility model relates to the technical field of torque detection, in particular to a torque detection mechanism. Background Art

[0002] A recliner is a device installed on a car seat to adjust the seat back angle. The device is generally composed of a backrest connecting plate, a seat connecting plate, a core component, a handwheel or an adjustment handle, a return spring, and other parts (in some low-cost seats, the backrest connecting plate and the seat connecting plate are generally integrated into the backrest frame and the seat frame). According to the continuity of the angle adjustment, it can be divided into a stepped recliner and a stepless recliner. In order to improve the accuracy of the seat angle adjustment, torque detection is required before the recliner leaves the factory. The traditional recliner torque detection mechanism has the problems of complex detection structure and high detection cost. Utility Model Content

[0003] In order to overcome the above disadvantages, the purpose of the utility model is to provide a torque detection mechanism.

[0004] In order to achieve the above objectives, the technical solution adopted by the utility model includes:

[0005] A rotating shaft and a profiling member, wherein the profiling member is vertically slidably disposed at a lower position of the rotating shaft and rotates synchronously with the rotating shaft;

[0006] An elastic member is used to connect the shaped member and the rotating shaft. With the elastic force of the elastic member, the shaped member is pushed down to a static position relative to the rotating shaft.

[0007] In a preferred technical solution of the above torque detection mechanism, the rotating shaft is driven to rotate by a servo motor, and a torque sensor is arranged on the rotating shaft.

[0008] In the preferred technical solution of the torque detection mechanism, the profiling member at least includes a moving seat and a profiling head, the moving seat vertically slides at the lower position of the rotating shaft, and the profiling head is detachably arranged at the bottom end of the moving seat.

[0009] In the preferred technical solution of the torque detection mechanism, a keyway for the shaft to enter is formed at the top of the movable seat, and a key matched with the keyway is formed at the side of the shaft.

[0010] In a preferred technical solution of the torque detection mechanism, the elastic member is arranged on the rotating shaft via a snap ring, and the snap ring and the rotating shaft are snap-connected via a pin.

[0011] In the preferred technical solution of the above torque detection mechanism, the servo motor is arranged on the frame through a vertical lifting component, and the vertical lifting component is used to control the vertical lifting of the servo motor.

[0012] In the preferred technical solution of the above torque detection mechanism, the vertical lifting assembly includes a tray for mounting the servo motor and a driving device fixed on the frame, and the driving device is used to drive the tray to move vertically.

[0013] In the preferred technical solution of the torque detection mechanism, a fixing seat is arranged on the tray, at least one set of bearings is arranged in the fixing seat in the vertical direction, and the inner ring of the bearing rotates synchronously with the rotating shaft.

[0014] In a preferred technical solution of the above torque detection mechanism, the fixing seat is provided with a proximity sensor located at the contoured member.

[0015] In the preferred technical solution of the above torque detection mechanism, the elastic member is one of a spring or elastic steel.

[0016] The beneficial effect of the utility model is that the servo motor controls the rotating shaft to drive the profiling member to rotate synchronously, so that the profiling head enters the rotating teeth of the recliner under the action of the elastic member, thereby avoiding the problem of excessive downward pressure of the profiling head on the rotating teeth of the recliner due to inaccurate alignment of the profiling head and the rotating teeth, causing damage to the recliner. When the profiling head is located in the rotating teeth of the recliner, the rotating shaft continues to rotate, and the torque of the recliner can be measured by the torque sensor, thereby forming a quick test of the recliner before leaving the factory, which is practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the angle adjuster after assembly;

[0018] Figure 2 It is the front view of the utility model;

[0019] Figure 3 It is a right side view of the utility model;

[0020] Figure 4 It is a front view of the utility model;

[0021] Figure 5 A diagram showing the connection relationship between the rotating shaft, the elastic member and the contour member;

[0022] Figure 6 A schematic diagram of the structure of the rotating shaft and the profiling member;

[0023] Figure 7 is a cross-sectional view of the rotating shaft, the elastic member and the contour member;

[0024] In the figure: shaft 1, profiling member 2, moving seat 21, keyway 221, profiling head 22, elastic member 3, angle adjuster 4, rotating gear 41, servo motor 5, torque sensor 6, frame 7, tray 81, driving device 82, fixed seat 9, proximity sensor 10, key 11, snap ring 12. DETAILED DESCRIPTION

[0025] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0026] It should be noted that in the description of the present invention, the terms "upper", "lower", "left", "right", "front", "rear" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] like Figures 1 to 7 As shown, the torque detection mechanism of the utility model includes: a rotating shaft 1 and a profiling member 2, wherein the profiling member 2 is vertically slidably arranged at the lower position of the rotating shaft 1 and rotates synchronously with the rotating shaft 1; an elastic member 3, wherein the elastic member 3 is used to connect the profiling member 2 and the rotating shaft 1, and by means of the elastic force of the elastic member 3, the profiling member 2 is pushed down to a static position relative to the rotating shaft 1.

[0029] See also Figure 5 The elastic member 3 has a first end and a second end opposite to each other, wherein the first end is mounted on the rotating shaft 1 and the other end is mounted on the top of the shaped member 2. The elastic member 3 can mount the shaped member 2 at the lower position of the rotating shaft 1, and the shaped member 2 and the rotating shaft 1 are in a vertical sliding relationship.

[0030] See also Figure 1 After the recliner 4 is pressed and assembled, a rotating tooth 41 is formed in the middle of the recliner 4, and the profiling member 2 has a profiling structure matching the rotating tooth 41 at the end away from the rotating shaft 1. The torque of the recliner 4 can be measured by extending the profiling structure of the profiling member 2 into the rotating tooth 41 of the recliner 4, controlling the rotating shaft 1 to rotate and recording the torque of the rotating shaft 1 at this time.

[0031] See also Figures 1 to 7 When the torque detection is performed on the recliner 4, the recliner 4 is first fixed on the detection table to keep the recliner 4 coaxial with the profiling member 2 and the rotating shaft 1; in the initial state, under the action of the elastic member 3 and the profiling member 2's own gravity, the profiling member 2 moves vertically downward relative to the rotating shaft 1 to a static position; then, the rotating shaft 1 is controlled to rotate and the profiling member 2 is moved downward, and when the profiling member 2 abuts against the upper position of the rotating teeth 41 of the recliner 4, the profiling structure of the profiling member 2 is not meshed with the rotating teeth 41, and the elastic member 3 is in a compressed state, and then, the rotating shaft 1 and the profiling member 2 are stopped from moving downward and the rotating shaft 1 and the profiling member 2 are controlled to rotate synchronously, and when the profiling structure of the profiling member 2 is vertically aligned with the recliner, the profiling structure of the profiling member 2 is vertically aligned with the recliner. 4 is adapted, under the action of the elastic member 3, the profiling member 2 is pushed down to make the profiling structure enter the rotating tooth 41, so that the profiling structure of the profiling member 2 is engaged with the rotating tooth 41 of the recliner 4, and finally, the rotating shaft 1 is controlled to drive the profiling member 2 to rotate synchronously, and the torque of the recliner 4 can be measured by testing the resistance of the rotating shaft 1 to the recliner 4; the structure is simple, and the docking steps of the profiling structure of the profiling member 2 and the recliner 4 are reduced. At the same time, this method can avoid the problem that the profiling structure of the profiling member 2 is excessively pressed on the rotating tooth 41 of the recliner 4 due to inaccurate alignment of the profiling structure and the rotating tooth 41, causing damage to the recliner 4.

[0032] In one or more embodiments, the rotating shaft 1 is driven to rotate by the servo motor 5, and a torque sensor 6 is arranged on the rotating shaft 1; the servo motor 5 is arranged on the frame 7 through a vertical lifting assembly, and the vertical lifting assembly is used to control the vertical lifting of the servo motor 5; the vertical lifting assembly includes a tray 81 for installing the servo motor 5 and a driving device 82 fixed on the frame 7, and the driving device 82 is used to drive the tray 81 to move vertically.

[0033] See also Figure 2 , Figure 3 The torque sensor 6 is connected to the rotating shaft 1, but does not rotate synchronously with the rotating shaft 1; the tray 81 is slidably mounted on the frame 7 through a slider and a guide rail, and the driving device 82 can be a driving cylinder or a screw module.

[0034] When the torque of the recliner 4 is detected, the driving device 82 controls the servo motor 5, the rotating shaft 1 and the profiling member 2 to move downward through the tray 81, and makes the profiling member 2 abut against the rotating teeth 41 of the recliner 4. At this time, the elastic member 3 is in a compressed state. Thereafter, the profiling member 2 is controlled to rotate by the servo motor 5, so that the profiling structure of the profiling member 2 rotates and the profiling structure is adapted to the rotating teeth 41 of the recliner 4 in the vertical direction. At this time, the bottom end of the profiling structure is no longer abutted and is pushed downward into the rotating teeth 41 of the recliner 4 under the action of the elastic member 3, so that the profiling structure of the profiling member 2 is meshed with the rotating teeth 41 of the recliner 4. Thereafter, the rotating shaft 1 is controlled to rotate by the servo motor 5, and the torque sensor 6 does not rotate so that the torque sensor 6 detects the resistance of the rotating shaft 1 to the recliner 4, thereby realizing the detection of the torque of the recliner 4. The structure is simple and the operation is convenient.

[0035] After the detection is completed, the servo motor 5 is first reversed to make the shaft 1 drive the contour structure of the contour member 2 to reverse, and then the rotating teeth 41 of the adjuster 4 are reset. Thereafter, the servo motor 5, the shaft 1 and the contour member 2 are controlled by the driving device 82 to move upward as a whole, so as to reduce the damage of the contour structure of the contour member 2 to the adjuster 4.

[0036] In one or more embodiments, a fixing seat 9 is disposed on the tray 81 , and at least one set of bearings is disposed in the fixing seat 9 in the vertical direction, and the inner ring of the bearing rotates synchronously with the rotating shaft 1 .

[0037] See also Figures 2 to 4 By limiting the position of the rotating shaft 1 through the bearing, the stability of the rotating shaft 1 during rotation can be ensured, thereby improving the stability of the rotating shaft 1 driving the contour member 2 to detect the torque of the angle adjuster 4.

[0038] In one or more embodiments, the mount 9 is provided with a proximity sensor 10 located at the contoured member 2. Figures 2 to 4 The proximity sensor 10 can detect the position of the profiling member 2 in the height direction, and then detect whether the profiling structure of the profiling member 2 enters the rotating teeth 41 of the angle adjuster 4, so as to adjust the working state of the servo motor 5.

[0039] In one or more embodiments, the profiling member 2 includes at least a movable seat 21 and a profiling head 22. The movable seat 21 slides vertically at the lower position of the rotating shaft 1, and the profiling head 22 is detachably configured at the bottom end of the movable seat 21; a key slot 221 for the rotating shaft 1 to enter is formed at the top of the movable seat 21, and a key 11 matching the key slot 221 is formed on the side of the rotating shaft 1.

[0040] See also Figures 5 to 7The profiling member 2 is composed of a moving seat 21 and a profiling head 22. The profiling head 22 is the above-mentioned profiling structure. A keyway 221 is vertically provided on the top of the moving seat 21, and a socket is vertically provided on the bottom. A threaded hole connected to the socket is provided at the lower side of the moving seat 21; wherein the keyway 221 is used for the rotating shaft 1 to extend into and to be assembled through the key 11, and the socket is used for installing the profiling head 22, and a bolt is threadedly connected in the threaded hole to abut or loosen the profiling head 22, so that the profiling head 22 can be replaced on the moving seat 21, thereby improving the scope of application of the present application; wherein the second end of the elastic member 3 is installed at the top of the moving seat 21.

[0041] In one or more embodiments, the elastic member 3 is disposed on the rotating shaft 1 through a snap ring 12, and the snap ring 12 and the rotating shaft 1 are clamped together through a pin; the elastic member 3 is a spring or elastic steel.

[0042] See also Figures 5 to 7 The second end of the elastic member 3 is installed on the top of the movable seat 21, and the first end of the elastic member 3 is configured on the rotating shaft 1 through the retaining ring 12, thereby realizing the synchronous rotation of the elastic member 3 and the rotating shaft 1; the retaining ring 12 of the present application is detachably connected to the rotating shaft 1 through a pin shaft, which can facilitate the overall disassembly and replacement of the movable seat 21 and the assembly of the equipment.

[0043] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A torque detection mechanism, characterized in that: include: A rotating shaft and a profiling member, wherein the profiling member is vertically slidably disposed at a lower position of the rotating shaft and rotates synchronously with the rotating shaft; An elastic member is used to connect the shaped member and the rotating shaft. With the elastic force of the elastic member, the shaped member is pushed down to a static position relative to the rotating shaft.

2. The torque detection mechanism according to claim 1, characterized in that: The rotating shaft is driven to rotate by a servo motor, and a torque sensor is arranged on the rotating shaft.

3. The torque detection mechanism according to claim 1, characterized in that: The profiling member at least comprises a moving seat and a profiling head. The moving seat vertically slides at the lower position of the rotating shaft, and the profiling head is detachably arranged at the bottom end of the moving seat.

4. The torque detection mechanism according to claim 3, characterized in that: A keyway for the rotating shaft to enter is formed at the top of the movable seat, and a latch key matched with the keyway is formed at the side of the rotating shaft.

5. The torque detection mechanism according to claim 1 or 3, characterized in that: The elastic member is arranged on the rotating shaft via a clamping ring, and the clamping ring is clamped with the rotating shaft via a pin.

6. The torque detection mechanism according to claim 2, characterized in that: The servo motor is arranged on the frame through a vertical lifting assembly, and the vertical lifting assembly is used to control the vertical lifting of the servo motor.

7. The torque detection mechanism according to claim 6, characterized in that: The vertical lifting assembly includes a tray for mounting the servo motor and a driving device fixed on the frame, wherein the driving device is used to drive the tray to move vertically.

8. The torque detection mechanism according to claim 7, characterized in that: A fixing seat is arranged on the tray, and at least one set of bearings is arranged in the fixing seat in the vertical direction, and the inner ring of the bearing rotates synchronously with the rotating shaft.

9. The torque detection mechanism according to claim 8, characterized in that: The fixing seat is provided with a proximity sensor located at the contoured member.

10. The torque detection mechanism according to claim 1, characterized in that: The elastic member is a spring or elastic steel.

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