clutch mechanism

Abstract

The present application relates to a kind of clutch mechanisms, including control, clutch disc, rotating key. Wherein clutch disc is fixedly connected with rotating shaft, rotating key mounting bracket is fixedly connected on support frame, rotating key is hinged with rotating key mounting bracket, control is hinged with support frame, control is fixedly connected with control pin. When control rotates, the rotation angle of rotating key is controlled by control pin on it, so as to realize the engagement and separation of rotating shaft and support frame. The clutch mechanism is compact in structure, and the clutch of rotating shaft and support frame is realized by the rotation of control, so the failure rate is low.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of vehicles, in particular to a clutch mechanism. BACKGROUND

[0002] A double rotating key rigid clutch is disclosed in Chinese patent CN201120324048.X, which comprises a large gear, a middle sleeve connected with the large gear through a key, a crankshaft installed in the middle sleeve, and a washer installed on the crankshaft through a key. The middle sleeve is provided with a plurality of evenly distributed axial arc-shaped key grooves, and the crankshaft is provided with corresponding two arc-shaped key grooves. An arc-shaped working key and an auxiliary key are respectively arranged in the two arc-shaped key grooves in the crankshaft. One end of the working key is connected with an engaging key, and two ends of a tension spring are respectively connected with a check ring and the engaging key. The clutch is characterized in that a driving gear is arranged on the other end of the working key through a key, and a driven gear meshing with the driving gear is arranged on one end of the auxiliary key. The clutch is achieved by the cam extending to block the engaging key, so as to rotate the working key and the auxiliary key, and realize the engagement and disengagement of the clutch. However, the engaging key needs to swing a large angle to drive the working key to rotate, which is not suitable for installation in a narrow space. In addition, the gears and other components are easy to be blocked by sundries, so that the clutch mechanism is not suitable for operation in a harsh environment. SUMMARY

[0003] The present application aims to overcome the above technical deficiencies, and provides a clutch mechanism.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a clutch mechanism for realizing the engagement and disengagement of a support frame assembly and a rotating shaft hinged thereto, comprising a control member, a clutch disc and a rotating key. The clutch disc is fixedly connected with the rotating shaft. The rotating key is hinged with the support frame assembly. The control member is hinged with the support frame assembly. The support frame assembly and / or the control member limits the rotation range of the rotating key. The rotation angle of the rotating key relative to the support frame assembly is controlled by rotating the control member, so as to realize the engagement or disengagement of the rotating shaft and the support frame assembly. The main body of the support frame assembly is a support frame.

[0005] Preferably, the control member is fixedly connected with a control pin. The rotating key has an inner groove which can be inserted and matched with the control pin. When the control member rotates, the rotating key is driven and its rotation angle is controlled by the control pin inserted into the inner groove.

[0006] Preferably, the rotating key is connected with the support frame assembly through an elastic element. When the control member does not act on the rotating key, the elastic element presses the rotating key to a fixed position relative to the support frame assembly.

[0007] Preferably, the support frame assembly is provided with a positioning pin, the rotating key is provided with a limiting pin, one end of the elastic element is connected with the limiting pin, and the other end is connected with the positioning pin. When the control member does not act on the rotating key, the limiting pin is pressed on the positioning pin.

[0008] Preferably, the support frame assembly limits the rotation range of the control member.

[0009] Preferably, the support frame assembly is provided with a plurality of limiting bosses, the limiting bosses are distributed around the rotation axis of the control member and the support member, the control member is provided with a limiting protrusion, and the limiting protrusion is located between adjacent limiting bosses, so as to limit the rotation range of the control member relative to the support frame.

[0010] Preferably, the control member is further connected with the support frame assembly through a connecting rod mechanism, the connecting rod mechanism and the control member and the support frame assembly form a Sarrus connecting rod mechanism, and the translation movement of the translation member in the connecting rod mechanism is converted into the rotation of the control member.

[0011] Preferably, the control member is coaxially hinged with the rotating shaft on the support frame assembly.

[0012] Preferably, the outer circumference of the clutch disc is uniformly provided with a plurality of semicircular grooves, and the rotating key is provided with a groove structure corresponding to the position of the clutch disc after installation.

[0013] Preferably, the support frame assembly comprises a rotating key mounting frame, the rotating key mounting frame is fixed on the support frame, and the rotating key is connected with the rotating key mounting frame.

[0014] Preferably, the rotating key mounting frame is fixed on the support frame through a support frame connecting piece.

[0015] Preferably, the rotating key mounting frame is provided with a rotating key mounting frame inner groove at a position corresponding to the clutch disc, and the rotating key mounting frame inner groove enables the clutch disc to rotate relative to the support frame assembly without interfering with the rotating key mounting frame.

[0016] Preferably, the rotating key is two, and the two rotating keys are installed in opposite directions on the support frame assembly.

[0017] Preferably, the support frame assembly has two support frames, and the two support frames are fixed together through a support frame connecting piece.

[0018] Preferably, the control member and the rotating key are two respectively, the two control members are located on the two sides of the clutch disc and are installed on the two support frames respectively, the support frames and the control members on the two sides are connected through connecting rod mechanisms, and the connecting rod mechanisms on the two sides are connected together, so as to realize the synchronous rotation of the two rotating keys.

[0019] The beneficial effects of the present application are: the clutch mechanism is compact in structure, the clutch of the rotating shaft and the support frame assembly can be realized by a very small angle rotation of the control member, and the action is agile; the same components can be combined to realize a double rotating key structure, the types of parts are less, and the maintenance is facilitated, which is helpful to control the cost; when the double rotating key structure is adopted, the two rotating keys can tightly lock the clutch disc, and there is no empty return when the rotating shaft suddenly changes the rotation direction, so that the engagement of the rotating shaft and the support frame is more reliable; the clutch mechanism has no moving pair and gear pair, and the clutch action is controlled by using the control member with fixed shaft rotation and the translation member with translation movement, so that the control is facilitated, the structure is simple, the clutch mechanism can be applied in harsh environment and heavy load working conditions, and the reliability is high. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structural schematic diagram of the present application;

[0021] Figure 2 is a schematic diagram of the rotating key in the present application;

[0022] Figure 3 is a schematic diagram of the through groove structure with two symmetrical inner grooves in the present application;

[0023] Figure 4 is a schematic diagram of the through groove structure with two asymmetrical inner grooves in the present application;

[0024] Figure 5 is a schematic diagram of the convex structure with only single side structure in the inner groove of the present application;

[0025] Figure 6 is a schematic diagram of the inner groove with chamfer structure on one side in the present application;

[0026] Figure 7 is a schematic diagram of the positioning pin installed on the rotating key in the present application;

[0027] Figure 8 is a schematic diagram of the rotating key mounting frame in the present application;

[0028] Figure 9 is a schematic diagram of the limiting pin installed on the rotating key mounting frame in the present application;

[0029] Figure 10 is a position diagram of the rotating key and the clutch disc when the control pin does not enter the inner groove of the rotating key in the present application;

[0030] Figure 11 is a position diagram of the rotating key and the clutch disc when the control pin just enters the inner groove of the rotating key in the present application;

[0031] Figure 12 is a schematic diagram of the control member driving the rotating key to contact the clutch disc in the present application;

[0032] Figure 13is a schematic diagram of a single connecting rod mechanism connected with a control element;

[0033] Figure 14 is a structural schematic diagram of the anti-rollover mechanism in the application;

[0034] Figure 15 is a schematic diagram of three connecting rod mechanisms connected with a control element in the application;

[0035] Figure 16 is a schematic diagram of the double-turn-key structure in the application;

[0036] Figure 17 is Figure 14 another direction structural schematic diagram;

[0037] Figure 18 is a schematic diagram of the rotation shaft and support frame assembly when they are engaged in the double-turn-key structure;

[0038] Figure 19 is a schematic diagram of the rotation shaft and support frame assembly when they are separated in the double-turn-key structure;

[0039] Figure 20 is a schematic diagram of the double-turn-key structure with three connecting rod mechanisms on both sides;

[0040] Figure 21 is Figure 20 a schematic diagram of the hidden side support frame;

[0041] Figure 22 is a position diagram of the connecting rod mechanism when the control pin approaches the inner groove of the turn key in the application;

[0042] Figure 23 is a position diagram of the connecting rod mechanism when the control pin just enters the inner groove of the turn key in the application;

[0043] Figure 24 is a position diagram of the connecting rod mechanism when the control pin completely enters the inner groove of the turn key in the application;

[0044] In the figure: 1, clutch disc; 2, turn key; 3, turn key mounting bracket; 4, control pin; 5, control element; 6, rotation shaft; 7, support frame assembly; 8, support frame; 9, support frame connecting element; 10, semicircular groove; 11, positioning pin; 12, limiting pin; 13, cylindrical solid; 14, inner groove; 15, groove structure; 16, arc surface; 17, positioning sleeve; 18, inner groove of the turn key mounting bracket; 19, traction rod; 20, translation element; 21, anti-rollover mechanism; 22, synchronization assembly; 23, traction rod connecting shaft; 24, translation element connecting shaft; 25, positioning base; 26, base connecting rod; 27, pull rod; 28, limiting boss; 29, limiting protrusion; 30, torsional spring; 31, through groove; 32, protrusion; 33, chamfer. DETAILED DESCRIPTION

[0045] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined with "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0047] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixed connection", "fixed connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated connection; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] Specifically, as shown in Figure 1 The clutch mechanism in the present patent is used to realize the engagement and separation of the rotating shaft 6 and the support frame assembly 7. The rotating shaft 6 is mounted on the support frame assembly 7 through a bearing, and can rotate around a fixed axis relative to the support frame assembly 7. The main body of the support frame assembly 7 is a support frame 8. The clutch mechanism mainly consists of a clutch disc 1, a rotating key 2 and a control member 5. The clutch disc is fixedly connected with the rotating shaft 6; the rotating key 2 is hinged on the support frame assembly 7 and connected with the support frame assembly through a elastic element, which presses the rotating key on the fixed position of the support frame assembly, so that it cannot freely rotate relative to the support frame assembly, at this time the rotating key is in the initial state; the control member 5 and the rotating shaft are coaxially hinged on the support frame and limited in the rotating range by the support frame, and a control pin 4 is fixedly connected on it. When the control member 5 rotates, the rotating key is driven to rotate through the control pin 4 on it, so that the rotating key contacts or separates from the clutch disc, thereby realizing the engagement or separation of the rotating shaft and the support frame.

[0049] Specifically, as shown in Figure 1As shown, the support frame assembly includes support frame 8, support frame connecting member 9, and rotating key mounting frame 3, etc. The rotating key mounting frame is fixed to the support frame connecting member, and the support frame connecting member is fixed to the support frame. The outer periphery of the clutch disc 1 is uniformly provided with a plurality of semicircular grooves 10. As shown Figure 2 As shown, the main structure of the rotating key is a cylindrical entity 13 with a groove structure 15. One end of the rotating key is provided with an inner groove 14, which can adopt various forms, such as Figure 2 As shown, the inner groove can be a one-sided inner groove, such as Figure 3 As shown, it can also be a through groove 31 symmetrical on both sides, such as Figure 4 As shown, it can also be a through groove 31 asymmetrical on both sides, such as Figure 5 As shown, it can also be a protrusion 32 with only a single side structure, such as Figure 6 As shown, it can also have a chamfer 33 on one side to facilitate the entry of the control pin. In short, as long as the control pin can enter and the rotating key can be actuated, the inner groove can adopt various forms. The radius of the cylindrical entity 13 is slightly smaller than the radius of the semicircular groove of the clutch disc, the radius of the arc surface 16 of the groove structure is slightly larger than the radius of the clutch disc, and the width of the inner groove 14 is slightly larger than the diameter of the control pin 4. As shown Figure 8 and Figure 9 As shown, the rotating key mounting frame is provided with a positioning sleeve 17 and a rotating key mounting frame inner groove 18, which passes through the positioning sleeve and has a radius slightly larger than the radius of the clutch disc.

[0050] As shown Figure 1 The cylindrical entity 13 of the rotating key is hinged to the positioning sleeve 17 through a sliding bearing, and the clutch disc is fixed to the rotating shaft through a spline, etc., and the edge portion with the semicircular groove 10 passes through the rotating key mounting frame inner groove. The rotating key mounting frame is fixed with a positioning pin 11, and the rotating key is fixed with a limiting pin 12. A torsional spring 30 is sleeved on the rotating key, one end of which is fixed to the limiting pin 12, and the other end is pressed against the positioning pin 11, so that the limiting pin is pressed against the positioning pin, thereby fixing the position of the rotating key relative to the rotating key mounting frame. At this time, the axis of the arc surface 16 coincides with the axis of the rotating shaft, i.e. the groove structure faces the clutch disc and does not interfere with the rotation of the clutch disc. At this time, the rotating shaft and the support frame assembly are in a separated state.

[0051] The process of actuating the rotating key by the control member 5 is as shown Figure 10 to Figure 12 When the control member 5 is rotated to a certain angle, the control pin 4 thereon will be inserted into the inner groove 14 of the rotating key, actuating the rotating key to separate the limiting pin from the positioning pin, and at the same time, the corresponding entity of the groove structure 15 enters the semicircular groove of the clutch disc, thereby limiting the rotation of the clutch disc relative to the rotating key mounting frame, and further realizing the engagement of the rotating shaft and the support frame assembly, as shown Figure 12When the control member 5 rotates in the opposite direction, the control pin 4 on it is out of the inner groove 14 of the rotating key, and the corresponding entity of the groove structure 15 is out of the semicircular groove 10 of the clutch disc. Under the action of the torsional spring 30, the limiting pin 12 on the rotating key will be pressed on the positioning pin 11 again, ensuring that the corresponding entity of the groove structure 15 is out of the semicircular groove 10 of the clutch disc. At this time, the rotating shaft and the support frame assembly are in a separated state, as shown in Figure 10 In the above process, the control member 5 only needs to rotate a small angle, and the corresponding entity of the groove structure can quickly enter or exit the semicircular groove on the outer circumference of the clutch disc, thereby achieving agile engagement and disengagement.

[0052] The support frame limits the rotation range of the control member 5 in the following way. As shown in Figure 1 、 Figure 10 to Figure 12 The support frame 8 has a plurality of limiting bosses 28 on the upper part, which are distributed around the rotating axis of the control member 5. The control member 5 has a limiting protrusion 29, and after the control member 5 is hingedly installed with the support frame, the limiting protrusion 29 on it is between the above two adjacent limiting bosses 28. The movement range of the limiting protrusion 29 is limited by the limiting bosses 28, thereby realizing the limitation of the rotation range of the control member 5 by the support frame.

[0053] The translation of the movement into the rotation of the control member 5 can be realized in the following way, thereby facilitating the adjustment of the rotation of the control member 5.

[0054] Specifically, as shown in Figure 13- Figure 14 The control member 5 is further connected with the support frame through a connecting rod mechanism. The connecting rod mechanism is composed of a plurality of hingedly connected connecting rods, including a traction rod 19, a translation member 20 and an anti-tilting mechanism 21. The traction rod is hingedly connected with the control member 5 through a traction rod connecting shaft 23; the translation member is hingedly connected with the corresponding traction rod through a translation member connecting shaft 24, and the end of the translation member away from the traction rod is hingedly connected with the anti-tilting mechanism.

[0055] As shown in Figure 14 The anti-tilting mechanism 21 is used to further limit the movement freedom degree of the translation member, mainly composed of a positioning base 25, a base connecting rod 26 and a pull rod 27. The positioning base is fixedly connected on the support frame; one end of the base connecting rod is hingedly connected with the positioning base; the other end of the base connecting rod is hingedly connected with one end of the pull rod, and the other end of the pull rod is hingedly connected with the translation member.

[0056] The traction rod 19, the translation member 20 and the anti-tilting mechanism 21 form a Sarrus linkage mechanism with the control member 5 and the support frame. The installation relationship of the control member 5, the traction rod, the translation member and the anti-tilting mechanism enables the translation member to only translate along the normal direction of the rotation axis of the control member 5. When the translation member translates along the normal direction of the rotation axis of the control member 5, the control member 5 is driven to rotate, thereby converting the translation movement into the rotation of the control member 5, and further controlling the engagement or disengagement of the rotation axis and the support frame.

[0057] In addition, in order to make the force on the clutch disc and other components more reasonable, a plurality of rotating keys can be installed. Specifically, a plurality of rotating keys are hinged on the rotating key mounting frame, and a plurality of control pins are installed on the control member. The hinged positions of the rotating keys and the installed positions of the control pins are matched, and are matched with the distribution of the semicircular grooves on the clutch disc. Through the rotation of the control member 5, the synchronous rotation of the plurality of rotating keys can be realized, thereby realizing the engagement and disengagement of the rotation axis and the support frame assembly.

[0058] Through the above-mentioned manner, the translation movement in multiple directions can also be converted into the rotation of the control member. As shown in Figure 15 , three traction rods 19, three translation members 20 and three anti-tilting mechanisms 21 are used. The three traction rods are evenly installed on the control member, and each traction rod is hinged to the control member through a traction rod connecting shaft 23. The three translation members are respectively hinged to the corresponding traction rods through translation member connecting shafts 24, and the ends of the translation members away from the traction rods are hinged to the anti-tilting mechanisms. Under the joint action of the anti-tilting mechanisms, the three translation members can only translate, approaching or moving away from the rotation axis of the control member. When the translation members translate, the traction rods are pulled, and the traction rods drive the control member to rotate, thereby realizing the conversion of the translation movement in multiple directions into the rotation of the control member, and further controlling the engagement or disengagement of the rotation axis and the support frame.

[0059] Through combination, the clutch mechanism can be realized as a double-rotating-key structure, as shown in Figure 16 and Figure 17 . The double-rotating-key structure can ensure that the two rotating keys tightly lock the clutch disc, and there is no empty return when the rotation direction of the rotation axis is changed, thereby making the engagement of the rotation axis and the support frame more reliable.

[0060] Specifically, the support frame assembly 7 includes two support frames 8 which are fixedly connected together through a support frame connecting member 9 and are respectively located on the two sides of the clutch disc. The control member and the rotating key are both two, which are installed on the two support frames 8 in the same manner as described above. The installation positions of the two rotating keys on the rotating key mounting frame are symmetrical, and the installation directions are opposite. The two control members rotate synchronously, and the rotating keys are driven to rotate synchronously by the control pins 4 fixedly connected thereto, but the directions are opposite, thereby realizing the engagement or disengagement of the rotation axis and the support frame assembly in the double-rotating-key structure.

[0061] The synchronous rotation of the two control members is realized by the following way. The control members on one side are connected with the support frames on the corresponding side through the connecting rod mechanisms. The connecting rod mechanisms on the two sides are connected, so that the synchronous rotation of the control members is realized. Specifically, as shown in Figure 16 and 17 , the two sides are connected through the synchronous assembly 22, so that the translation of the translation members is synchronized.

[0062] With the synchronous rotation of the two control members, the two control pins are inserted into the inner grooves of the corresponding rotation keys and rotate the rotation keys, and the corresponding entities of the groove structures of the two rotation keys are turned into the semicircular grooves of the clutch disc, so that the rotating shaft is engaged with the support frame assembly, as shown in Figure 18 . When the two control pins are driven out of the inner grooves of the corresponding rotation keys with the reverse synchronous rotation of the two control members, the corresponding entities of the groove structures 15 of the two rotation keys are driven out of the semicircular grooves 10 of the clutch disc, and the two torsion springs 30 ensure that the rotating shaft and the support frame assembly are in a separated state, as shown in Figure 19 .

[0063] Similarly, the double-rotation-key structure can also convert the translation movement in multiple directions into the rotation of the control members. As shown in Figure 20 to 24 , the support frames on the two sides are correspondingly installed with three traction rods 19, three translation members 20 and three anti-overturning mechanisms 21 in the same way, and the corresponding translation members on the two sides are connected through the synchronous assembly 22, so that the opposite translation members are fixedly connected and the movement of the two translation members is synchronized, thereby realizing the conversion of the translation movement in multiple directions into the control of the double-rotation-key clutch mechanism.

[0064] As shown in Figure 20 , 22 -24, when the translation members in the connecting rod mechanism move away from the axis of the rotating shaft, the control members are driven to rotate, the control pins gradually enter the inner grooves of the rotation keys, the rotation keys are driven to rotate, the corresponding entities of the groove structures are turned into the semicircular grooves of the clutch disc, the clutch disc is engaged with the rotation key mounting frame, and the rotating shaft is engaged with the support frame. The above process is also true in the opposite direction.

[0065] In summary, the clutch mechanism of the present application has a compact structure, and the control members can realize the engagement and disengagement of the rotating shaft and the support frame assembly with a small angle of rotation, and the action is agile; the same components can be combined to realize the double-rotation-key structure, the types of parts are few, the maintenance is convenient, and the control cost is low; when the double-rotation-key structure is used, the two rotation keys can tightly lock the clutch disc, and there is no empty return when the rotating shaft suddenly changes the direction of rotation, so that the engagement of the rotating shaft and the support frame is more reliable; the clutch mechanism has no moving pairs and gear pairs, and uses control members with fixed-axis rotation and translation members with translation movement to control the clutch action, which is convenient to control, simple in structure, applicable in harsh environments and heavy load working conditions, and high in reliability.

[0066] The above merely describes the preferred embodiments of the present application, and it should be pointed out that, for those skilled in the art, several improvements and refinements can be made without departing from the principles of the present application, and these improvements and refinements should also be considered as falling within the protection scope of the present application.

Claims

1. A clutching mechanism for effecting engagement and disengagement of a support frame assembly and a rotary shaft hingedly connected thereto, characterized by: The clutch comprises a control member, a clutch disc and a rotating key, wherein the clutch disc is fixed to the rotating shaft, the rotating key is hinged to the support frame assembly, the control member is hinged to the support frame assembly, the support frame assembly or the control member limits the rotation range of the rotating key, the rotation angle of the rotating key relative to the support frame assembly is controlled by rotating the control member, the rotating shaft and the support frame assembly are connected or disconnected, the main body of the support frame assembly is a support frame; The rotating key is connected to the support frame assembly through an elastic element, when the control member does not act on the rotating key, the elastic element presses the rotating key to a fixed position relative to the support frame assembly; a positioning pin is fixed to the support frame assembly, a limiting pin is fixed to the rotating key, one end of the elastic element is connected to the limiting pin and the other end is connected to the positioning pin, when the control member does not act on the rotating key, the limiting pin is pressed on the positioning pin.

2. The clutching mechanism of claim 1, wherein: The control member is fixed with a control pin; the rotating key has an inner groove which can be inserted and matched with the control pin, when the control member rotates, the rotating key is pushed and rotated by the control pin inserted into the inner groove, and then the rotation angle of the rotating key is controlled.

3. The clutching mechanism of claim 1, wherein: The support frame assembly limits the rotation range of the control member.

4. A clutching mechanism according to claim 3, wherein: The support frame assembly has a plurality of limiting bosses which are distributed around the rotation axis of the control member and the support frame, the control member has a limiting protrusion which is between adjacent limiting bosses, thereby limiting the rotation range of the control member relative to the support frame.

5. The clutching mechanism of claim 1, wherein: The control member is also connected to the support frame assembly through a connecting rod mechanism, the connecting rod mechanism, the control member and the support frame assembly form a Sarrus connecting rod mechanism, and the translation movement of the translating member in the connecting rod mechanism is converted into the rotation of the control member.

6. The clutching mechanism of claim 1, wherein: The control member and the rotating shaft are coaxially hinged on the support frame assembly.

7. The clutching mechanism of claim 1, wherein: The outer circumference of the clutch disc is uniformly distributed with a plurality of semicircular grooves, the rotating key has a groove structure which corresponds to the position of the clutch disc after installation.

8. The clutching mechanism of claim 1, wherein: The support frame assembly comprises a rotating key mounting frame, the rotating key mounting frame is fixed to the support frame, and the rotating key is connected to the rotating key mounting frame.

9. A clutching mechanism according to claim 8, wherein: The rotating key mounting frame is fixed to the support frame through a support frame connector.

10. The clutching mechanism of claim 8, wherein: The rotating key mounting frame has a rotating key mounting frame inner groove at a position corresponding to the clutch disc, and the rotating key mounting frame inner groove does not interfere with the rotating key mounting frame when the clutch disc rotates relative to the support frame assembly.

11. The clutching mechanism of claim 1, wherein: There are two rotating keys, and the two rotating keys are installed in opposite directions on the support frame assembly.

12. A clutching mechanism according to any one of claims 1-11, characterized in that: The support frame assembly has two support frames which are fixed together through a support frame connector.

13. A clutching mechanism according to claim 12, wherein: The control member and the rotating key are two, the two control members are located on both sides of the clutch disc and are installed on the two support frames, the support frames and the control members on both sides are connected through connecting rod mechanisms, and the connecting rod mechanisms on both sides are connected together, thereby realizing the synchronous rotation of the two rotating keys.

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