Friction actuated ratchet clutch provided with inertia cam

Abstract

The invention provides a friction actuating type ratchet clutch with an inertia cam, which is mainly applied to the technical field of transmission, in particular to the technical field of ratchet clutches. The clutch at least comprises a pawl, a ratchet wheel, a return spring, a pawl seat, a friction cam, a separation spring and an inertia cam. Under the action of rotation inertia, the separation spring is selectively contacted with the ratchet wheel, or the separation spring is selectively separated from the ratchet wheel, or the separation spring is selectively contacted with the friction cam, or the separation spring is selectively separated from the friction cam; and under the friction action of the separation spring or the ratchet wheel, the pawl and the ratchet wheel selectively realize separation and reunion, and the pawl and the ratchet wheel selectively realize contact separation. Compared with the prior art, the friction actuating type ratchet clutch with the inertia cam is low in operation noise and high in transmission efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to a friction actuated ratchet clutch provided with an inertial cam, mainly used in the field of transmission technology. BACKGROUND

[0002] The ratchet clutch uses the interaction of pawl and ratchet to selectively realize the on-off of various power or motion. Because of its simple structure and high carrying capacity, it is widely used in various transmission systems. The ratchet clutch can realize on-off by itself or under the action of external actuator. When the ratchet clutch is running in the disengaged state or the overrun state, especially when it is used as an overrun clutch, a one-way clutch or a one-way brake, the pawl and the ratchet continuously hit under the action of the spring and produce vibration and noise, thereby increasing the noise of the working environment of the operator. Therefore, how to selectively separate the pawl and the ratchet when needed has become a technical problem to be solved in the field of ratchet clutches. SUMMARY

[0003] In order to solve the technical problems existing in the ratchet clutch as described above, the present application aims to provide a friction actuated ratchet clutch provided with an inertial cam. The friction actuated ratchet clutch provided with an inertial cam is used to connect at least two parts of a machine, a device, a transmission system or a mechanism, and / or selectively realize the on-off of the power or motion of the connected moving parts by the interaction of the pawl and the ratchet, and / or selectively realize the deceleration, stop or keep the stop state of the connected moving parts by the interaction of the pawl and the ratchet.

[0004] The present application is realized by the following scheme:

[0005] The friction actuated ratchet clutch with inertia cam comprises pawl, ratchet wheel, return spring, pawl seat, friction cam, separation spring, inertia cam. The pawl is arranged on the pawl seat and can rotate within a certain angle range relative to the pawl seat. Alternatively, the pawl is arranged on the friction cam and can rotate within a certain angle range relative to the friction cam. The friction cam is arranged on the pawl seat and can rotate within a certain angle range relative to the pawl seat. The inertia cam is arranged on the pawl seat and can rotate within a certain angle range relative to the pawl seat. Alternatively, the inertia cam is arranged on the friction cam and can rotate within a certain angle range relative to the friction cam. Alternatively, the inertia cam is arranged on the separation spring and can rotate within a certain angle range relative to the separation spring. Alternatively, the inertia cam is arranged on the ratchet wheel and can rotate within a certain angle range relative to the ratchet wheel. One end of the separation spring is arranged on the friction cam, and under the action of the moment of inertia of the components of the friction actuated ratchet clutch with inertia cam, the other end of the separation spring selectively contacts or is separated from the ratchet wheel. Alternatively, one end of the separation spring is arranged on the ratchet wheel, and under the action of the moment of inertia of the components of the friction actuated ratchet clutch with inertia cam, the other end of the separation spring selectively contacts or is separated from the friction cam. The friction cam is connected with the pawl, or the pawl seat is connected with the pawl. The return spring is connected with the pawl. When the separation spring is in contact with the ratchet wheel, the pawl is selectively separated from the ratchet wheel under the friction of the ratchet wheel. Alternatively, when the separation spring is in contact with the friction cam, the pawl is selectively separated from the ratchet wheel under the friction of the separation spring. When the separation spring is in contact with the ratchet wheel, the pawl is selectively engaged or disengaged with the ratchet wheel under the friction of the ratchet wheel. Alternatively, when the separation spring is in contact with the friction cam, the pawl is selectively engaged or disengaged with the ratchet wheel under the friction of the separation spring. The ratchet wheel and the pawl seat are respectively connected with external components (the external components refer to components other than the components of the friction actuated ratchet clutch with inertia cam).

[0006] Further, the pawl comprises a first pawl 1. The ratchet comprises a first ratchet 2. The return spring comprises a first return spring 3. The pawl seat comprises a first pawl seat 4. The friction cam comprises a first friction cam 5. The separation spring comprises a first separation spring 18. The inertia cam comprises a first inertia cam 30. The first pawl 1 is arranged on the first pawl seat 4, and within a certain angle range, the first pawl 1 is rotatable relative to the first pawl seat 4. Alternatively, the first pawl 1 is arranged on the first friction cam 5, and within a certain angle range, the first pawl 1 is rotatable relative to the first pawl seat 4. The first friction cam 5 is arranged on the first pawl seat 4, and between a first limited angle and a second limited angle, the first friction cam 5 is rotatable relative to the first pawl seat 4. The first inertia cam 30 is arranged on the first pawl seat 4, and between a third limited angle and a fourth limited angle, the first inertia cam 30 is rotatable relative to the first pawl seat 4. One end of the first separation spring 18 is arranged on the first friction cam 5, and under the action of the rotational inertia of the first inertia cam 30, the other end of the first separation spring 18 selectively realizes contact with the first ratchet 2 or selectively realizes disengagement from the first ratchet 2. The first friction cam 5 is connected with the first pawl 1. The first return spring 3 is connected with the first pawl 1. When the first friction cam 5 rotates to the first limited angle position relative to the first pawl seat 4, the first pawl 1 selectively realizes engagement or disengagement with the first ratchet 2. When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, the first pawl 1 is disengaged from the first ratchet 2. When the first inertia cam 30 rotates to the third limited angle position relative to the first pawl seat 4, the other end of the first separation spring 18 is in contact with the first ratchet 2. When the first inertia cam 30 rotates to the fourth limited angle position relative to the first pawl seat 4, and when the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, the other end of the first separation spring 18 is disengaged from the first ratchet 2. The first ratchet 2 and the first pawl seat 4 are respectively connected with the external components.

[0007] Alternatively, the pawl comprises a first pawl 1. The ratchet comprises a first ratchet 2. The return spring comprises a first return spring 3. The pawl seat comprises a first pawl seat 4. The friction cam comprises a first friction cam 5. The separation spring comprises a first separation spring 18. The inertia cam comprises a first inertia cam 30. The first pawl 1 is arranged on the first pawl seat 4, and within a certain angle range, the first pawl 1 is rotatable relative to the first pawl seat 4. Alternatively, the first pawl 1 is arranged on the first friction cam 5, and within a certain angle range, the first pawl 1 is rotatable relative to the first pawl seat 4. The first friction cam 5 is arranged on the first pawl seat 4, and between a first limited angle and a second limited angle, the first friction cam 5 is rotatable relative to the first pawl seat 4. The first inertia cam 30 is arranged on the first friction cam 5, and between a third limited angle and a fourth limited angle, the first inertia cam 30 is rotatable relative to the first friction cam 5. One end of the first separation spring 18 is arranged on the first friction cam 5, and under the action of the rotational inertia of the first inertia cam 30, the other end of the first separation spring 18 selectively realizes contact with the first ratchet 2, or the other end of the first separation spring 18 selectively realizes disengagement from the first ratchet 2. The first friction cam 5 is connected with the first pawl 1. The first return spring 3 is connected with the first pawl 1. When the first friction cam 5 rotates to the first limited angle position relative to the first pawl seat 4, the first pawl 1 selectively realizes engagement and disengagement with the first ratchet 2. When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, the first pawl 1 is disengaged from the first ratchet 2. When the first inertia cam 30 rotates to the third limited angle position relative to the first friction cam 5, the other end of the first separation spring 18 is in contact with the first ratchet 2. When the first inertia cam 30 rotates to the fourth limited angle position relative to the first friction cam 5, the other end of the first separation spring 18 is disengaged from the first ratchet 2. The first ratchet 2 and the first pawl seat 4 are respectively connected with the external components.

[0008] Alternatively, the pawl comprises a first pawl 1. The ratchet comprises a first ratchet 2. The return spring comprises a first return spring 3. The pawl seat comprises a first pawl seat 4. The friction cam comprises a first friction cam 5. The separation spring comprises a first separation spring 18. The inertia cam comprises a first inertia cam 30. The first pawl 1 is arranged on the first pawl seat 4, and within a certain angle range, the first pawl 1 is rotatable relative to the first pawl seat 4. Alternatively, the first pawl 1 is arranged on the first friction cam 5, and within a certain angle range, the first pawl 1 is rotatable relative to the first pawl seat 4. The first friction cam 5 is arranged on the first pawl seat 4, and between a first limited angle and a second limited angle, the first friction cam 5 is rotatable relative to the first pawl seat 4. The first inertia cam 30 is arranged on the first separation spring 18, and between a third limited angle and a fourth limited angle, the first inertia cam 30 is rotatable relative to the first separation spring 18. One end of the first separation spring 18 is arranged on the first friction cam 5, and under the action of the rotational inertia of the first inertia cam 30, the other end of the first separation spring 18 selectively realizes contact with the first ratchet 2, or the other end of the first separation spring 18 selectively realizes disengagement from the first ratchet 2. The first friction cam 5 is connected with the first pawl 1. The first return spring 3 is connected with the first pawl 1. When the first friction cam 5 rotates to the first limited angle position relative to the first pawl seat 4, the first pawl 1 selectively realizes engagement and disengagement with the first ratchet 2. When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, the first pawl 1 is disengaged from the first ratchet 2. When the first inertia cam 30 rotates to the third limited angle position relative to the first separation spring 18, the other end of the first separation spring 18 is in contact with the first ratchet 2. When the first inertia cam 30 rotates to the fourth limited angle position relative to the first separation spring 18, the other end of the first separation spring 18 is disengaged from the first ratchet 2. The first ratchet 2 and the first pawl seat 4 are respectively connected with the external components.

[0009] Alternatively, the pawl comprises a first pawl 1. The ratchet comprises a first ratchet 2. The return spring comprises a first return spring 3. The pawl seat comprises a first pawl seat 4. The friction cam comprises a first friction cam 5. The separation spring comprises a first separation spring 18. The inertia cam comprises a first inertia cam 30. The first pawl 1 is arranged on the first pawl seat 4, and within a certain angle range, the first pawl 1 is rotatable relative to the first pawl seat 4. Alternatively, the first pawl 1 is arranged on the first friction cam 5, and within a certain angle range, the first pawl 1 is rotatable relative to the first pawl seat 4. The first friction cam 5 is arranged on the first pawl seat 4, and between a first limited angle and a second limited angle, the first friction cam 5 is rotatable relative to the first pawl seat 4. The first inertia cam 30 is arranged on the first ratchet 2, and between a third limited angle and a fourth limited angle, the first inertia cam 30 is rotatable relative to the first ratchet 2. One end of the first separation spring 18 is arranged on the first ratchet 2, and under the action of the rotational inertia of the first inertia cam 30, the other end of the first separation spring 18 selectively realizes contact with the first friction cam 5, or the other end of the first separation spring 18 selectively realizes disengagement from the first friction cam 5. The first friction cam 5 is connected with the first pawl 1. The first return spring 3 is connected with the first pawl 1. When the first friction cam 5 rotates to the first limited angle position relative to the first pawl seat 4, the first pawl 1 selectively realizes engagement and disengagement with the first ratchet 2. When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, the first pawl 1 is disengaged from the first ratchet 2. When the first inertia cam 30 rotates to the third limited angle position relative to the first ratchet 2, the other end of the first separation spring 18 is in contact with the first friction cam 5. When the first inertia cam 30 rotates to the fourth limited angle position relative to the first ratchet 2, the other end of the first separation spring 18 is disengaged from the first friction cam 5. The first ratchet 2 and the first pawl seat 4 are respectively connected with the external components.

[0010] Alternatively, the pawl comprises a first pawl 1. The ratchet comprises a first ratchet 2. The return spring comprises a first return spring 3. The pawl seat comprises a first pawl seat 4. The friction cam comprises a first friction cam 5. The separation spring comprises a first separation spring 18. The inertia cam comprises a first inertia cam 30. The first pawl 1 is arranged on the first pawl seat 4, and within a certain angle range, the first pawl 1 is rotatable relative to the first pawl seat 4. Alternatively, the first pawl 1 is arranged on the first friction cam 5, and within a certain angle range, the first pawl 1 is rotatable relative to the first pawl seat 4. The first friction cam 5 is arranged on the first pawl seat 4, and between a first limited angle and a second limited angle, the first friction cam 5 is rotatable relative to the first pawl seat 4. The first inertia cam 30 is arranged on the first separation spring 18, and between a third limited angle and a fourth limited angle, the first inertia cam 30 is rotatable relative to the first separation spring 18. One end of the first separation spring 18 is arranged on the first ratchet 2, and under the action of the rotational inertia of the first inertia cam 30, the other end of the first separation spring 18 selectively realizes contact with the first friction cam 5, or the other end of the first separation spring 18 selectively realizes disengagement from the first friction cam 5. The first friction cam 5 is connected with the first pawl 1. The first return spring 3 is connected with the first pawl 1. When the first friction cam 5 rotates to the first limited angle position relative to the first pawl seat 4, the first pawl 1 selectively realizes engagement and disengagement with the first ratchet 2. When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, the first pawl 1 is disengaged from the first ratchet 2. When the first inertia cam 30 rotates to the third limited angle position relative to the first separation spring 18, the other end of the first separation spring 18 is in contact with the first friction cam 5. When the first inertia cam 30 rotates to the fourth limited angle position relative to the first separation spring 18, the other end of the first separation spring 18 is disengaged from the first friction cam 5. The first ratchet 2 and the first pawl seat 4 are respectively connected with the external components.

[0011] Further, when the friction cam rotates to the first limited angle position relative to the pawl seat, the friction cam and the pawl seat have an angular positioning function. When the friction cam rotates to the second limited angle position relative to the pawl seat, the friction cam and the pawl seat have an angular positioning function. When the inertia cam rotates to the third limited angle position relative to the pawl seat, the inertia cam and the pawl seat have an angular positioning function. When the inertia cam rotates to the fourth limited angle position relative to the pawl seat, the inertia cam and the pawl seat have an angular positioning function.

[0012] Alternatively, when the friction cam rotates to the first limited angle position relative to the pawl seat, the friction cam and the pawl seat have an angular positioning function through a series of bosses and grooves. When the friction cam rotates to the second limited angle position relative to the pawl seat, the friction cam and the pawl seat have an angular positioning function through a series of bosses and grooves. When the inertia cam rotates to the third limited angle position relative to the pawl seat, the inertia cam and the pawl seat have an angular positioning function through a series of bosses and grooves. When the inertia cam rotates to the fourth limited angle position relative to the pawl seat, the inertia cam and the pawl seat have an angular positioning function through a series of bosses and grooves.

[0013] Alternatively, the friction actuated ratchet clutch with inertia cam comprises a positioning mechanism 8. When the friction cam rotates to the first limited angle position relative to the pawl seat, the friction cam and the pawl seat have an angular positioning function through the positioning mechanism 8. When the friction cam rotates to the second limited angle position relative to the pawl seat, the friction cam and the pawl seat have an angular positioning function through the positioning mechanism 8. When the inertia cam rotates to the third limited angle position relative to the pawl seat, the inertia cam and the pawl seat have an angular positioning function through the positioning mechanism 8. When the inertia cam rotates to the fourth limited angle position relative to the pawl seat, the inertia cam and the pawl seat have an angular positioning function through the positioning mechanism 8.

[0014] Further, the first separation spring 18 comprises a first separation spring support 31, a first separation spring friction pad 32. The first separation spring support 31 has at least a certain elastic deformation capacity. One end of the first separation spring support 31 is fixed on the first friction cam 5, and the other end of the first separation spring support 31 is fixedly connected with the first separation spring friction pad 32. Or, one end of the first separation spring support 31 is fixed on the first ratchet wheel 2, and the other end of the first separation spring support 31 is fixedly connected with the first separation spring friction pad 32. The first separation spring friction pad 32 is in contact with the first ratchet wheel 2, or the first separation spring friction pad 32 is in contact with the first friction cam 5.

[0015] Further, the friction cam is arranged on the pawl seat through a bearing. The inertia cam is arranged on the pawl seat through a bearing, or the inertia cam is arranged on the friction cam through a bearing, or the inertia cam is arranged on the separation spring through a bearing, or the inertia cam is arranged on the ratchet wheel through a bearing. The ratchet wheel is connected with the pawl seat through a bearing.

[0016] Compared with the prior art, the friction actuation type ratchet clutch provided with the inertia cam has low operation noise and high transmission efficiency. The friction actuation type ratchet clutch provided with the inertia cam can selectively realize the disengagement of the pawl and the ratchet wheel by the friction of the separation spring, so that the continuous impact noise of the pawl and the ratchet wheel in the disengaged state can be avoided. Moreover, under the action of rotational inertia, the separation spring and the friction cam are selectively disengaged, and since friction contact is avoided at this time, the transmission efficiency of the clutch in the disengaged state can be improved.

[0017] The above features and advantages of the present application, as well as other features and advantages thereof, will be more clearly understood and appreciated from the following detailed description of the preferred embodiments of the application, taken in conjunction with the accompanying drawings, of which: BRIEF DESCRIPTION OF DRAWINGS

[0018] Figures 1-52Fig. 1 is a structural schematic diagram of the embodiment 1. The marks in the figure are explained as follows: 1 - first pawl, 2 - first ratchet wheel, 3 - first return spring, 4 - first pawl seat, 5 - first friction cam, 8 - positioning mechanism, 9 - first positioning boss, 10 - first positioning groove, 11 - second positioning groove, 12 - first friction cam bearing, 13 - third positioning groove, 14 - fourth positioning groove, 15 - first rivet, 16 - second rivet, 17 - second positioning boss, 18 - first separation spring, 19 - third rivet, 20 - radial boss of the first pawl seat 4, 21 - first radial tooth groove of the first pawl seat 4, 22 - second radial tooth groove of the first pawl seat 4, 23 - radial convex tooth of the first friction cam 5, 24 - radial convex tooth of the first inertia cam support 33, 25 - axial boss of the first pawl seat 4, 26 - axial sliding groove of the first inertia cam 30, 27 - axial boss of the first friction cam 5, 28 - axial sliding groove of the first ratchet wheel 2, 29 - radial convex tooth of the first friction cam support 51, 30 - first inertia cam, 31 - first separation spring support, 32 - separation spring friction pad of the first separation spring, 33 - first inertia cam support, 34 - first inertia cam plunger, 35 - separation boss of the first inertia cam 30, 36 - second inertia cam support, 37 - first inertia cam rivet, 38 - separation boss of the first inertia cam support 33, 39 - separation boss of the second inertia cam support 36, 40 - separation boss of the first ratchet wheel 2, 50 - first bolt, 51 - first friction cam support, 52 - second friction cam support, 60 - third positioning boss. For the convenience of expression, the rotating direction shown by the arrow in the figure is the forward rotating direction adopted by the corresponding embodiment. DETAILED DESCRIPTION

[0019] The present application is further described in conjunction with the accompanying drawings and examples, but the present application is not limited to the description of the examples. Obviously, only some of the preferred embodiments of the present application are described, and not all the embodiments. Those skilled in the art can easily make many changes based on the principles of the application, so the present application is not fixed to the details shown and described, but is intended to include all changes and modifications within the scope of the claims.

[0020] The terminology used herein is for the purpose of describing particular example embodiments only and is not intended to be limiting. As used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises" and "comprising," when used in this document, are taken to specify the presence of stated features, integers, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless specifically identified as an order dependency. It is also to be understood that additional or alternative steps can be employed.

[0021] Although the terms first, second, third, etc. can be used herein to describe various elements, components, parts, assemblies, layers and / or sections, these elements, components, parts, assemblies, layers and / or sections should not be limited by these terms. These terms can be only used to distinguish one element, component, part, assembly, layer and / or section from another element, component, part, assembly, layer and / or section. Terms such as "first", "second", "third" and other numerical terms when used herein do not imply an order or sequence unless the context clearly indicates otherwise.

[0022] "axial" in the embodiments refers to the axial direction of the friction-actuated ratchet clutch provided with the inertia cam, and "radial" in the embodiments refers to the radial direction of the friction-actuated ratchet clutch provided with the inertia cam, unless the context clearly indicates otherwise.

[0023] Embodiment 1

[0024] The friction-actuated ratchet clutch provided with the inertia cam, as shown in Figures 1-12 includes a first pawl 1, a first ratchet wheel 2, a first return spring 3, a first pawl seat 4, a first friction cam 5, a positioning mechanism 8, a first rivet 15, a second rivet 16, a first separation spring 18, and a first inertia cam 30.

[0025] The first separation spring 18 comprises a first separation spring support 31 and a first separation spring friction pad 32. The first separation spring support 31 has a large elastic deformation capacity. One end of the first separation spring support 31 is arranged on the first friction cam 5 through the first rivet 15. The other end of the first separation spring support 31 is fixedly connected with the first separation spring friction pad 32 through the second rivet 16. Thus, the first separation spring support 31 and the first separation spring friction pad 32 are connected into an integral whole (i.e. the first separation spring 18). The first separation spring friction pad 32 is in contact or out of contact with the first ratchet wheel 2. Thus, in general, the first separation spring 18 is in contact or out of contact with the first ratchet wheel 2.

[0026] The first inertia cam 30 comprises a first inertia cam support 33 and a first inertia cam plunger 34. Under the action of the first pawl seat 4, the first inertia cam plunger 34 and the first inertia cam support 33 are connected into an integral whole (i.e. the first inertia cam 30). Preferably, the first inertia cam 30 is rotatably arranged on the first pawl seat 4 through a shaft hole clearance fit. Alternatively, the first inertia cam 30 can also be arranged on the first pawl seat 4 through a rolling bearing or a sliding bearing. Under the action of the first inertia cam plunger 34, the first inertia cam 30 is fixed in the axial direction relative to the first pawl seat 4. The radial teeth 24 of the first inertia cam support 33 cooperate with the second radial tooth groove 22 of the first pawl seat 4, so that the first inertia cam 30 is rotatable relative to the first pawl seat 4 between a third limited angle and a fourth limited angle.

[0027] The positioning mechanism 8 is arranged on the first inertia cam support 33 through a shaft hole interference fit. Preferably, the structure of the positioning mechanism 8 is as shown in Figure 5

[0028] The first friction cam 5 is provided with a first positioning boss 9, and the first pawl seat 4 is provided with a first positioning groove 10, a second positioning groove 11, a third positioning groove 13, and a fourth positioning groove 14. The number of the positioning mechanism 8, the first positioning boss 9, the first positioning groove 10, the second positioning groove 11, the third positioning groove 13, and the fourth positioning groove 14 can be set according to actual working conditions.

[0029] ​The first ratchet wheel 2, the first friction cam 5 and the first inertia cam 30 are coaxially arranged with the first pawl seat 4. The first ratchet wheel 2 and the first pawl seat 4 are respectively connected with external components (not shown, the external components refer to components not including the components of the friction actuated ratchet clutch with inertia cam) through splines.

[0030] The first pawl 1 is arranged on the first pawl seat 4 through shaft hole gap fit, and is rotatable relative to the first pawl seat 4, and is fixed in the axial direction relative to the first pawl seat 4 through riveting boss. The first pawl 1 is connected with the first friction cam 5 through contact. The first return spring 3 is connected with the first pawl 1. The first pawl seat 4 interacts with the first pawl 1 through the first return spring 3 and shaft hole gap fit.

[0031] Preferably, the first friction cam 5 is rotatably arranged on the first pawl seat 4 through shaft hole gap fit. Alternatively, the first friction cam 5 can also be arranged on the first pawl seat 4 through rolling bearing or sliding bearing. Under the action of the first pawl 1, the first friction cam 5 is fixed in the axial direction relative to the first pawl seat 4. The radial teeth 23 of the first friction cam 5 are matched with the first radial tooth groove 21 of the first pawl seat 4, so that the first friction cam 5 is rotatable relative to the first pawl seat 4 between the first limited angle and the second limited angle. When the first separation spring friction pad 32 is in contact with the first ratchet wheel 2, the first separation spring friction pad 32 interacts with the first ratchet wheel 2 through friction under the elastic action of the first separation spring support 31, that is, the first separation spring 18 interacts with the first ratchet wheel 2 through friction, and the first friction cam 5 interacts with the first ratchet wheel 2 through the first separation spring 18.

[0032] When the first friction cam 5 rotates to the first limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first pawl seat 4, the first pawl 1 and the first ratchet wheel 2 can realize clutching under the action of the first return spring 3 and the first friction cam 5, and the first separation spring 18 interacts with the first ratchet wheel 2 through friction. At this time, the first pawl seat 4 can selectively transmit the power or movement of the first pawl seat 4 to the first ratchet wheel 2 through the first pawl 1. Alternatively, the first ratchet wheel 2 can selectively transmit the power or movement of the first ratchet wheel 2 to the first pawl seat 4 through the first pawl 1.

[0033] When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first pawl seat 4, the first pawl 1 is out of contact with the first ratchet wheel 2 under the action of the first return spring 3 and the first friction cam 5, and the first separation spring 18 is in friction interaction with the first ratchet wheel 2 under the action of the first inertia cam plunger 34 (i.e. under the action of the first inertia cam 30).

[0034] When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the fourth limited angle position relative to the first pawl seat 4, the first pawl 1 is out of contact with the first ratchet wheel 2 under the action of the first return spring 3 and the first friction cam 5, and the first separation spring 18 is out of contact with the first ratchet wheel 2 under the action of the first inertia cam plunger 34 (i.e. under the action of the first inertia cam 30).

[0035] And, when the first friction cam 5 is in the first limited angle position relative to the first pawl seat 4, the first pawl seat 4 has a certain angle positioning effect on the first friction cam 5 through the interaction of the first positioning boss 9 and the first positioning groove 10. When the first friction cam 5 is in the second limited angle position relative to the first pawl seat 4, the first pawl seat 4 has a certain angle positioning effect on the first friction cam 5 through the interaction of the first positioning boss 9 and the second positioning groove 11. When the first inertia cam 30 is in the third limited angle position relative to the first pawl seat 4, the first pawl seat 4 has a certain angle positioning effect on the first inertia cam 30 through the interaction of the positioning mechanism 8 and the third positioning groove 13. When the first inertia cam 30 is in the fourth limited angle position relative to the first pawl seat 4, the first pawl seat 4 has a certain angle positioning effect on the first inertia cam 30 through the interaction of the positioning mechanism 8 and the fourth positioning groove 14.

[0036] Preferably, in the initial state, the first friction cam 5 is in the first limited angle position relative to the first pawl seat 4, the first inertia cam 30 is in the third limited angle position relative to the first pawl seat 4, and the first pawl 1 is in the engaged state with the first ratchet wheel 2, and the first separation spring 18 is in friction interaction with the first ratchet wheel 2, as shown in Figures 6-8As shown. At this time, in the reverse direction (opposite to the rotation direction indicated by the arrow in the figure), the first ratchet 2 is fixed relative to the first pawl seat 4. When the absolute value of the angular acceleration or angular deceleration of the first pawl seat 4 is less than a certain range, and when the first ratchet 2 rotates clockwise relative to the first pawl seat 4 (rotation direction indicated by the arrow in the figure), under the friction of the first ratchet 2, the first separation spring 18 drives the first friction cam 5 to rotate, and thus the first friction cam 5 can rotate relative to the first pawl seat 4 to the second limited angle position. When the absolute value of the angular acceleration of the first pawl seat 4 in the reverse direction or the angular deceleration in the clockwise direction is greater than a certain range, under the action of rotational inertia, the first inertial cam 30 overcomes the action of various frictional torques, thereby allowing the first inertial cam 30 to rotate relative to the first pawl seat 4 to the fourth limited angle position.

[0037] like Figures 9-10 As shown, when the first friction cam 5 rotates relative to the first pawl seat 4 to the second limited angle position, and when the first inertial cam 30 rotates relative to the first pawl seat 4 to the third limited angle position, the first pawl 1 disengages from the first ratchet 2, and the first release spring 18 interacts with the first ratchet 2 through friction. At this time, when the absolute value of the angular acceleration or angular deceleration of the first pawl seat 4 is less than a certain range, the first ratchet 2 can rotate relative to the first pawl seat 4 in the forward rotation direction (the rotation direction indicated by the arrow in the figure). When the absolute value of the angular acceleration or angular deceleration of the first pawl seat 4 is less than a certain range, and when the first ratchet 2 rotates relative to the first pawl seat 4 in the reverse direction (opposite to the rotation direction indicated by the arrow in the figure), under the friction of the first ratchet 2, the first release spring 18 drives the first friction cam 5 to rotate, and thus the first friction cam 5 can rotate relative to the first pawl seat 4 to the first limited angle position. When the absolute value of the angular acceleration of the first pawl seat 4 in the reverse direction or the angular deceleration in the forward direction is greater than a certain range, under the action of rotational inertia, the first inertial cam 30 overcomes the action of various frictional torques, thereby allowing the first inertial cam 30 to rotate relative to the first pawl seat 4 to the fourth defined angular position.

[0038] like Figures 11-12When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the fourth limited angle position relative to the first pawl seat 4, and when the absolute value of the angular acceleration or the angular deceleration of the first pawl seat 4 is less than a certain range, the first pawl 1 is out of contact with the first ratchet wheel 2, and the first separation spring 18 is out of contact with the first ratchet wheel 2. At this time, when the absolute value of the angular acceleration or the angular deceleration of the first pawl seat 4 is less than a certain range, the first ratchet wheel 2 can rotate in the forward rotation direction and the reverse rotation direction relative to the first pawl seat 4. When the absolute value of the angular acceleration of the first pawl seat 4 in the forward rotation direction or the angular deceleration in the reverse rotation direction is greater than a certain range, under the action of rotational inertia, the first inertia cam 30 overcomes various friction torques, so that the first inertia cam 30 can rotate to the third limited angle position relative to the first pawl seat 4.

[0039] When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first pawl seat 4, and when the absolute value of the angular acceleration or the angular deceleration of the first pawl seat 4 is less than a certain range, and when the first ratchet wheel 2 rotates in the forward rotation direction relative to the first pawl seat 4, the first pawl 1 is out of contact with the first ratchet wheel 2, thereby avoiding continuous impact of the pawl and the ratchet wheel at this time.

[0040] When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the fourth limited angle position relative to the first pawl seat 4, and when the absolute value of the angular acceleration or the angular deceleration of the first pawl seat 4 is less than a certain range, the first pawl 1 is out of contact with the first ratchet wheel 2, and the first ratchet wheel 2 is out of contact with the first separation spring 18, which not only avoids continuous impact of the pawl and the ratchet wheel, but also avoids contact friction between the first separation spring 18 and the first ratchet wheel 2.

[0041] When the first separation spring 18 and the first ratchet wheel 2 interact through friction, a certain amount of wear will inevitably occur after a long period of operation. However, due to the large elastic deformation capacity of the first separation spring 18, the contact pressure between the first separation spring 18 and the first ratchet wheel 2 can be stably maintained within a certain range within a certain use time range, and the wear between the first separation spring 18 and the first ratchet wheel 2 can also be compensated to some extent, thereby ensuring that the first separation spring 18 and the first ratchet wheel 2 have stable frictional action within a certain use time range.

[0042] Example 2

[0043] A friction actuated ratchet clutch with inertia cam, as shown in the figure, comprises a first pawl 1, a first ratchet wheel 2, a first return spring 3, a first pawl seat 4, a first friction cam 5, a first friction cam bearing 12, a first rivet 15, a second rivet 16, a first separation spring 18, a third rivet 19, a first inertia cam 30. Figures 13-22

[0044] The first inertia cam 30 is rotatably arranged on the first friction cam 5 by the third rivet 19. The third rivet 19 cooperates with the axial sliding slot 26 of the first inertia cam 30, so that the first inertia cam 30 is rotatable between a third limited angle and a fourth limited angle relative to the first friction cam 5.

[0045] The first friction cam 5 is rotatably arranged on the first pawl seat 4 by the first friction cam bearing 12. Alternatively, the first friction cam 5 can also be arranged on the first pawl seat 4 by a sliding bearing or a shaft hole clearance fit. The first friction cam 5 cooperates with the axial boss 25 of the first pawl seat 4, so that the first friction cam 5 is rotatable between a first limited angle and a second limited angle relative to the first pawl seat 4.

[0046] As shown in the figure, when the first friction cam 5 rotates to the first limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first friction cam 5, the first pawl 1 and the first ratchet wheel 2 can be engaged and disengaged, and the first separation spring 18 and the first ratchet wheel 2 interact by friction. Figures 17-18 As shown in the figure, when the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first friction cam 5, the first pawl 1 and the first ratchet wheel 2 are in contact, and the first separation spring 18 and the first ratchet wheel 2 interact by friction.

[0047] Figures 19-20 As shown in the figure, when the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first friction cam 5, the first pawl 1 and the first ratchet wheel 2 are in contact, and the first separation spring 18 and the first ratchet wheel 2 interact by friction.

[0048] As shown in the figure, when the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first friction cam 5, the first pawl 1 and the first ratchet wheel 2 are in contact, and the first separation spring 18 and the first ratchet wheel 2 interact by friction. Figures 21-22 As shown in the figure, when the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first friction cam 5, the first pawl 1 and the first ratchet wheel 2 are in contact, and the first separation spring 18 and the first ratchet wheel 2 interact by friction.

[0049] ​​The first inertial cam 30 has a first positioning boss 9 and a second positioning boss 17 in its axial groove 26. The number of the third rivet 19, the first positioning boss 9, and the second positioning boss 17 can be set according to the actual working conditions.

[0050] When the first inertial cam 30 is at the third defined angle relative to the first friction cam 5, the first friction cam 5 provides a certain angular positioning function for the first inertial cam 30 through the interaction between the third rivet 19 and the first positioning boss 9. When the first inertial cam 30 is at the fourth defined angle relative to the first friction cam 5, the first friction cam 5 provides a certain angular positioning function for the first inertial cam 30 through the interaction between the third rivet 19 and the second positioning boss 17.

[0051] The rest is similar to Example 1.

[0052] Example 3

[0053] Friction-actuated ratchet clutch with inertial cam, such as Figures 23-32 As shown, it includes a first pawl 1, a first ratchet 2, a first return spring 3, a first pawl seat 4, a first friction cam 5, a first rivet 15, a second rivet 16, a first separation spring 18, and a first inertia cam 30.

[0054] The first separation spring 18 includes a first separation spring bracket 31 and a first separation spring friction pad 32. The first separation spring bracket 31 has a large elastic deformation capacity. One end of the first separation spring bracket 31 is mounted on the first friction cam 5 via the first rivet 15. The other end of the first separation spring bracket 31 is fixedly connected to the first separation spring friction pad 32. Thus, the first separation spring bracket 31 and the first separation spring friction pad 32 are connected to each other to form a whole (i.e., the first separation spring 18). The first separation spring friction pad 32 is in contact with or out of contact with the first ratchet 2. Therefore, overall, the first separation spring 18 is in contact with or out of contact with the first ratchet 2.

[0055] The first inertial cam 30 is rotatably mounted on the first release spring 18 via the second rivet 16. The second rivet 16 engages with the axial groove 26 of the first inertial cam 30, thereby allowing the first inertial cam 30 to rotate relative to the first release spring 18 between a third and a fourth defined angle.

[0056] The first friction cam 5 is rotatably arranged on the first pawl seat 4 by shaft hole clearance fit. Alternatively, the first friction cam 5 can also be arranged on the first pawl seat 4 by sliding bearing or shaft hole clearance fit. The radial lugs 23 of the first friction cam 5 are matched with the first radial tooth grooves 21 of the first pawl seat 4, so that the first friction cam 5 is rotatable relative to the first pawl seat 4 between a first limited angle and a second limited angle.

[0057] As shown in FIG. 1, when the first friction cam 5 is rotated to the first limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 is rotated to the third limited angle position relative to the first separation spring 18, the first pawl 1 and the first ratchet wheel 2 can be engaged and disengaged, and the first separation spring 18 and the first ratchet wheel 2 are in frictional interaction. Figures 27-28 As shown in FIG. 2, when the first friction cam 5 is rotated to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 is rotated to the third limited angle position relative to the first separation spring 18, the first pawl 1 and the first ratchet wheel 2 are in contact, and the first separation spring 18 and the first ratchet wheel 2 are in frictional interaction.

[0058] Figures 29-30 As shown in FIG. 3, when the first friction cam 5 is rotated to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 is rotated to the fourth limited angle position relative to the first separation spring 18, the first pawl 1 and the first ratchet wheel 2 are in contact, and the first separation spring 18 and the first ratchet wheel 2 are in contact through the matching of the separation boss 35 of the first inertia cam 30 and the axial boss 27 of the first friction cam 5.

[0059] As shown in FIG. 4, when the first friction cam 5 is rotated to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 is rotated to the fourth limited angle position relative to the first separation spring 18, the first pawl 1 and the first ratchet wheel 2 are in contact, and the first separation spring 18 and the first ratchet wheel 2 are in contact through the matching of the separation boss 35 of the first inertia cam 30 and the axial boss 27 of the first friction cam 5. Figures 31-32 The rest is similar to Example 2.

[0060] Example 4

[0061] The friction actuated ratchet clutch with inertia cam, as shown in FIG. 1, comprises a first pawl 1, a first ratchet wheel 2, a first return spring 3, a first pawl seat 4, a first friction cam 5, a first rivet 15, a second rivet 16, a first separation spring 18, and a first inertia cam 30.

[0062] Figures 33-42

[0063] ​​​The first separation spring 18 includes a first separation spring support 31 and a first separation spring friction pad 32. The first separation spring support 31 has a large elastic deformation capacity. One end of the first separation spring support 31 is arranged on the first ratchet wheel 2 through the first rivet 15. The other end of the first separation spring support 31 is fixedly connected with the first separation spring friction pad 32 through the second rivet 16. Thus, the first separation spring support 31 and the first separation spring friction pad 32 are connected into a whole (i.e. the first separation spring 18). The first separation spring friction pad 32 is in contact or out of contact with the first friction cam 5. Thus, in general, the first separation spring 18 is in contact or out of contact with the first friction cam 5.

[0064] The first inertia cam 30 includes a first inertia cam support 33, a second inertia cam support 36 and a first inertia cam rivet 37. Under the action of the first ratchet wheel 2, the first inertia cam support 33, the second inertia cam support 36 and the first inertia cam rivet 37 are connected into a whole (i.e. the first inertia cam 30). The first inertia cam rivet 37 cooperates with the axial sliding groove 28 of the first ratchet wheel 2, so that the first inertia cam 30 is rotatable relative to the first ratchet wheel 2 between a third limited angle and a fourth limited angle.

[0065] The first friction cam 5 includes a first friction cam support 51 and a second friction cam support 52. Under the action of the first pawl 1, the first friction cam support 51 and the second friction cam support 52 are connected into a whole (i.e. the first friction cam 5).

[0066] The axial sliding groove 28 of the first ratchet wheel 2 is provided with a first positioning boss 9 and a second positioning boss 17. The first friction cam support 51 is provided with a third positioning boss 60. The first pawl seat 4 is provided with a first positioning groove 10 and a second positioning groove 11. The number of the first positioning boss 9, the first positioning groove 10, the second positioning groove 11, the second positioning boss 17, the first inertia cam rivet 37 and the third positioning boss 60 can be set according to actual working conditions.

[0067] The first ratchet wheel 2, the first friction cam 5 and the first inertia cam 30 are coaxially arranged with the first pawl seat 4. The first ratchet wheel 2 and the first pawl seat 4 are respectively connected with external components (not shown, the external components refer to components other than the components of the inertia cam friction actuated ratchet clutch).

[0068] The first pawl 1 is arranged on the first friction cam 5 by means of a shaft hole clearance fit, and is rotatable relative to the first friction cam 5, and is fixed axially relative to the first friction cam 5 by means of two end riveting bosses. The first pawl 1 is connected to the first pawl seat 4 by means of contact. The first return spring 3 is connected to the first pawl 1. The first friction cam 5 interacts with the first pawl 1 by means of the first return spring 3 and a shaft hole clearance fit.

[0069] Preferably, the first friction cam 5 and the axial boss 25 of the first pawl seat 4 are fitted by means of a shaft hole clearance fit, so that the first friction cam 5 is rotatably arranged on the first pawl seat 4. Alternatively, the first friction cam 5 can also be arranged on the first pawl seat 4 by means of a rolling bearing or a sliding bearing. And under the action of the first pawl 1, the first friction cam 5 is fixed axially relative to the first pawl seat 4. The radial protruding teeth 29 of the first friction cam support 51 are fitted with the axial boss 25 of the first pawl seat 4, so that the first friction cam 5 is rotatable relative to the first pawl seat 4 between a first limited angle and a second limited angle. When the first separation spring friction pad 32 is in contact with the first friction cam 5, under the elastic action of the first separation spring support 31, the first separation spring friction pad 32 and the first friction cam 5 interact by friction, that is, the first separation spring 18 and the first friction cam 5 interact by friction, and the first ratchet wheel 2 interacts with the first friction cam 5 through the first separation spring 18.

[0070] When the first friction cam 5 rotates to the first limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first ratchet wheel 2, the first pawl 1 and the first ratchet wheel 2 can be connected or disconnected under the action of the first return spring 3 and the first pawl seat 4, and the first separation spring 18 and the first friction cam 5 interact by friction. At this time, the first pawl seat 4 can selectively transmit the power or movement of the first pawl seat 4 to the first ratchet wheel 2 through the first pawl 1. Alternatively, the first ratchet wheel 2 can selectively transmit the power or movement of the first ratchet wheel 2 to the first pawl seat 4 through the first pawl 1.

[0071] When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first ratchet wheel 2, the first pawl 1 is out of contact with the first ratchet wheel 2 under the action of the first return spring 3 and the first pawl seat 4, and the first separation spring 18 is in friction interaction with the first friction cam 5.

[0072] When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the fourth limited angle position relative to the first ratchet wheel 2, the first pawl 1 is out of contact with the first ratchet wheel 2 under the action of the first return spring 3 and the first pawl seat 4, and the first separation spring 18 is out of contact with the first friction cam 5 under the action of the separation boss 38 of the first inertia cam support 33 and the separation boss 39 of the second inertia cam support 36 (i.e. under the action of the first inertia cam 30).

[0073] When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the fourth limited angle position relative to the first ratchet wheel 2, the first pawl 1 is out of contact with the first ratchet wheel 2 under the action of the first return spring 3 and the first pawl seat 4, and the first separation spring 18 is out of contact with the first friction cam 5 under the action of the separation boss 38 of the first inertia cam support 33 and the separation boss 39 of the second inertia cam support 36 (i.e. under the action of the first inertia cam 30).

[0074] Preferably, in the initial state, the first friction cam 5 is at the first limited angle position relative to the first pawl seat 4, the first inertia cam 30 is at the third limited angle position relative to the first ratchet wheel 2, and the first pawl 1 is in engagement with the first ratchet wheel 2, and the first separation spring 18 is in friction interaction with the first friction cam 5, as shown in FIG. 1. Figures 37-38As shown. At this time, in the reverse direction (opposite to the rotation direction indicated by the arrow in the figure), the first ratchet 2 is fixed relative to the first pawl seat 4. When the absolute value of the angular acceleration or angular deceleration of the first ratchet 2 is less than a certain range, and when the first ratchet 2 rotates clockwise relative to the first pawl seat 4 (rotation direction indicated by the arrow in the figure), under the frictional action of the first separation spring 18, the first friction cam 5 can rotate relative to the first pawl seat 4 to the second limited angle position. When the absolute value of the angular acceleration of the first ratchet 2 in the clockwise direction or the angular deceleration in the reverse direction is greater than a certain range, under the action of rotational inertia, the first inertial cam 30 overcomes the action of various frictional torques, thereby allowing the first inertial cam 30 to rotate relative to the first ratchet 2 to the fourth limited angle position.

[0075] like Figures 39-40 As shown, when the first friction cam 5 rotates relative to the first pawl seat 4 to the second limited angle position, and when the first inertial cam 30 rotates relative to the first ratchet 2 to the third limited angle position, the first pawl 1 disengages from the first ratchet 2, and the first release spring 18 interacts with the first friction cam 5 through friction. At this time, when the absolute value of the angular acceleration or angular deceleration of the first ratchet 2 is less than a certain range, the first ratchet 2 can rotate relative to the first pawl seat 4 in the forward rotation direction (the rotation direction indicated by the arrow in the figure). When the absolute value of the angular acceleration or angular deceleration of the first ratchet 2 is less than a certain range, and when the first ratchet 2 rotates relative to the first pawl seat 4 in the reverse direction (opposite to the rotation direction indicated by the arrow in the figure), under the frictional action of the first release spring 18, the first friction cam 5 can rotate relative to the first pawl seat 4 to the first limited angle position. When the absolute value of the angular acceleration of the first ratchet 2 in the forward rotation direction or the angular deceleration in the reverse rotation direction is greater than a certain range, under the action of rotational inertia, the first inertial cam 30 overcomes the action of various frictional torques, thereby allowing the first inertial cam 30 to rotate relative to the first ratchet 2 to the fourth defined angular position.

[0076] like Figures 41-42When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the fourth limited angle position relative to the first ratchet wheel 2, and when the absolute value of the angular acceleration or angular deceleration of the first ratchet wheel 2 is less than a certain range, the first pawl 1 is out of contact with the first ratchet wheel 2, and the first separation spring 18 is out of contact with the first friction cam 5. At this time, when the absolute value of the angular acceleration or angular deceleration of the first ratchet wheel 2 in the reverse direction or in the forward direction is greater than a certain range, the first inertia cam 30 overcomes various friction torques under the action of rotational inertia, so that the first inertia cam 30 can rotate to the third limited angle position relative to the first ratchet wheel 2.

[0077] When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the third limited angle position relative to the first ratchet wheel 2, and when the absolute value of the angular acceleration or angular deceleration of the first ratchet wheel 2 is less than a certain range, and when the first ratchet wheel 2 rotates in the forward direction relative to the first pawl seat 4, the first pawl 1 is out of contact with the first ratchet wheel 2, thereby avoiding continuous impact of the pawl and the ratchet wheel at this time.

[0078] When the first friction cam 5 rotates to the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 rotates to the fourth limited angle position relative to the first ratchet wheel 2, and when the absolute value of the angular acceleration or angular deceleration of the first ratchet wheel 2 is less than a certain range, the first pawl 1 is out of contact with the first ratchet wheel 2, and the first friction cam 5 is out of contact with the first separation spring 18, which not only avoids continuous impact of the pawl and the ratchet wheel, but also avoids contact friction between the first separation spring 18 and the first friction cam 5.

[0079] When the first separation spring 18 and the first friction cam 5 interact through friction, a certain amount of wear will inevitably occur after a long period of operation. However, due to the large elastic deformation capacity of the first separation spring 18, the contact pressure between the first separation spring 18 and the first friction cam 5 can be stably maintained within a certain range within a certain use time range, and the wear between the first separation spring 18 and the first friction cam 5 can also be compensated to some extent, thereby ensuring that the first separation spring 18 and the first friction cam 5 have stable frictional action within a certain use time range.

[0080] Example 5

[0081] Friction-actuated ratchet clutch with inertial cam, such as Figures 43-52 As shown, it includes a first pawl 1, a first ratchet 2, a first return spring 3, a first pawl seat 4, a first friction cam 5, a first rivet 15, a first separation spring 18, a first inertia cam 30, and a first bolt 50.

[0082] One end of the first release spring 18 is mounted on the first ratchet 2 via the first bolt 50. The other end of the first release spring 18 is either in contact with or out of contact with the first friction cam 5.

[0083] The first inertial cam 30 is rotatably mounted on the first separation spring 18 via the first rivet 15. The first rivet 15 engages with the axial groove 26 of the first inertial cam 30, thereby allowing the first inertial cam 30 to rotate relative to the first separation spring 18 between a third and a fourth defined angle.

[0084] The first friction cam 5 is provided with a first positioning boss 9. The first pawl seat 4 is provided with a first positioning groove 10 and a second positioning groove 11. The axial sliding groove 26 of the first inertial cam 30 is provided with a second positioning boss 17 and a third positioning boss 60. The number of the first positioning boss 9, the first positioning groove 10, the second positioning groove 11, the first rivet 15, the second positioning boss 17, and the third positioning boss 60 can be set according to the actual working conditions.

[0085] The first ratchet 2, the first friction cam 5, and the first inertia cam 30 are all coaxially arranged with the first pawl seat 4. The first ratchet 2 and the first pawl seat 4 are respectively connected to external components (not shown, the external components refer to components excluding "the components of the friction-actuated ratchet clutch with inertia cam") via splines.

[0086] The first pawl 1 is mounted on the first friction cam 5 via a clearance fit through a shaft hole. The first pawl 1 is rotatable relative to the first friction cam 5 and is radially fixed relative to the first friction cam 5 via a riveting boss. The first pawl 1 is connected to the first pawl seat 4 via a contact. The first return spring 3 is connected to the first pawl 1. The first friction cam 5 interacts with the first pawl 1 through the first return spring 3 and the clearance fit through the shaft hole.

[0087] The first friction cam 5 is rotatably arranged on the first pawl seat 4 by means of a shaft hole gap fit. The first friction cam 5 is fixed in the axial direction relative to the first pawl seat 4. The first friction cam 5 cooperates with the radial boss 20 of the first pawl seat 4, so that the first friction cam 5 is rotatable relative to the first pawl seat 4 between a first limited angle and a second limited angle. When the first separation spring 18 is in contact with the first friction cam 5, under the elastic action of the first separation spring 18, the first separation spring 18 and the first friction cam 5 interact by friction, that is, the first ratchet wheel 2 interacts with the first separation spring 18 and the first friction cam 5.

[0088] As shown in Figures 47-48 When the first friction cam 5 is in the first limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 is in the third limited angle position relative to the first separation spring 18, under the action of the first return spring 3 and the first pawl seat 4, the first pawl 1 and the first ratchet wheel 2 can be connected and disconnected, and the first separation spring 18 and the first friction cam 5 interact by friction. At this time, through the first pawl 1, the first pawl seat 4 can selectively transmit the power or movement of the first pawl seat 4 to the first ratchet wheel 2. Alternatively, through the first pawl 1, the first ratchet wheel 2 can selectively transmit the power or movement of the first ratchet wheel 2 to the first pawl seat 4.

[0089] As shown in Figures 49-50 When the first friction cam 5 is in the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 is in the third limited angle position relative to the first separation spring 18, under the action of the first return spring 3 and the first pawl seat 4, the first pawl 1 and the first ratchet wheel 2 are out of contact, and the first separation spring 18 and the first friction cam 5 interact by friction.

[0090] As shown in Figures 51-52 When the first friction cam 5 is in the second limited angle position relative to the first pawl seat 4, and when the first inertia cam 30 is in the fourth limited angle position relative to the first separation spring 18, under the action of the first return spring 3 and the first pawl seat 4, the first pawl 1 and the first ratchet wheel 2 are out of contact, and the first separation spring 18 and the first friction cam 5 are out of contact through the cooperation of the separation boss 35 of the first inertia cam 30 and the separation boss 40 of the first ratchet wheel 2.

[0091] And, when the first friction cam 5 is at the first limited angle position relative to the first pawl seat 4, the first pawl seat 4 has certain angle positioning effect on the first friction cam 5 through the interaction of the first positioning boss 9 and the first positioning groove 10. When the first friction cam 5 is at the second limited angle position relative to the first pawl seat 4, the first pawl seat 4 has certain angle positioning effect on the first friction cam 5 through the interaction of the first positioning boss 9 and the second positioning groove 11. When the first inertia cam 30 is at the third limited angle position relative to the first separation spring 18, the first separation spring 18 has certain angle positioning effect on the first inertia cam 30 through the interaction of the first rivet 15 and the second positioning boss 17. When the first inertia cam 30 is at the fourth limited angle position relative to the first separation spring 18, the first separation spring 18 has certain angle positioning effect on the first inertia cam 30 through the interaction of the first rivet 15 and the third positioning boss 60.

[0092] The rest is similar to example 4.

[0093] It should be noted that the above examples are illustrative of the application and not limiting of the application, and alternative examples can be devised by those skilled in the art without departing from the scope of the appended claims. Accordingly, the examples are to be considered exemplary and not restrictive, the scope of the application being defined by the appended claims rather than the description preceding them, and all changes which come within the meaning and range of equivalency of the claims are to be embraced within the inventive concept. None of the claims are intended to invoke 35 U.S.C. § 112 (f) unless the exact words "means for" are followed by a participle.

[0094] Furthermore, it should be understood that although the present specification has been described in language specific to structural features, material or methodological acts, the application is not limited to the specific details as set forth above and it is contemplated that modifications of the various embodiments could occur to one skilled in the art, each and every combination and permutation of features could be considered within the scope of the application, as would arise from a consideration of the specification as a whole.

Claims

1. A friction-actuated ratchet clutch with an inertial cam, used to connect at least two components of a machine, device, transmission system, or mechanism, and / or to selectively engage or disengage the power or motion of the connected moving parts by means of the interaction between the pawl and the ratchet, and / or to selectively decelerate, stop, or maintain a stopped state of the connected moving parts by means of the interaction between the pawl and the ratchet, characterized in that: The friction-actuated ratchet clutch with an inertial cam includes at least: a pawl, a ratchet, a return spring, a pawl seat, a friction cam, a release spring, and an inertial cam; and / or The pawl is directly or indirectly disposed on the pawl seat, and is rotatable relative to the pawl seat within a certain angle range; or the pawl is directly or indirectly disposed on the friction cam, and is rotatable relative to the friction cam within a certain angle range; and / or The friction cam is directly or indirectly mounted on the pawl seat, and the friction cam is rotatable relative to the pawl seat within a certain angle range; and / or The inertial cam is directly or indirectly mounted on the pawl seat and is rotatable relative to the pawl seat within a certain angle range; or the inertial cam is directly or indirectly mounted on the friction cam and is rotatable relative to the friction cam within a certain angle range; or the inertial cam is directly or indirectly mounted on the release spring and is rotatable relative to the release spring within a certain angle range; or the inertial cam is directly or indirectly mounted on the ratchet and is rotatable relative to the ratchet within a certain angle range; and / or One end of the release spring is directly or indirectly disposed on the friction cam. Under the direct or indirect action of the rotational inertia of the components of the friction-actuated ratchet clutch with the inertia cam, the other end of the release spring selectively contacts the ratchet, or selectively disengages from the ratchet; or one end of the release spring is directly or indirectly disposed on the ratchet. Under the direct or indirect action of the rotational inertia of the components of the friction-actuated ratchet clutch with the inertia cam, the other end of the release spring selectively contacts the friction cam, or selectively disengages from the friction cam; and / or The friction cam is directly or indirectly connected to the pawl, or the pawl seat is directly or indirectly connected to the pawl; and / or The return spring is directly or indirectly connected to the pawl; and / or When the release spring is in contact with the ratchet, the pawl selectively disengages from the ratchet under the friction of the ratchet; or when the release spring is in contact with the friction cam, the pawl selectively disengages from the ratchet under the friction of the release spring; and / or The pawl and the ratchet wheel selectively achieve engagement or disengagement under the friction of the ratchet wheel when the separation spring is in contact with the ratchet wheel, or selectively achieve engagement or disengagement under the friction of the separation spring when the separation spring is in contact with the friction cam; and / or The ratchet wheel and the pawl seat are respectively connected with parts of the machine, or the ratchet wheel and the pawl seat are respectively connected with parts of the device, or the ratchet wheel and the pawl seat are respectively connected with parts of the transmission system, or the ratchet wheel and the pawl seat are respectively connected with parts of the mechanism.

2. The friction-actuated ratchet clutch with inertial cam according to claim 1, characterized in that: The pawl at least comprises a first pawl (1); and / or The ratchet wheel at least comprises a first ratchet wheel (2); and / or The return spring at least comprises a first return spring (3); and / or The pawl seat at least comprises a first pawl seat (4); and / or The friction cam at least comprises a first friction cam (5); and / or The separation spring at least comprises a first separation spring (18); and / or The inertial cam at least comprises a first inertial cam (30); and / or The first pawl (1) is directly or indirectly arranged on the first pawl seat (4), and within a certain angle range, the first pawl (1) is rotatable relative to the first pawl seat (4), or the first pawl (1) is directly or indirectly arranged on the first friction cam (5), and within a certain angle range, the first pawl (1) is rotatable relative to the first pawl seat (4); and / or The first friction cam (5) is directly or indirectly arranged on the first pawl seat (4), and between a first limited angle and a second limited angle, the first friction cam (5) is rotatable relative to the first pawl seat (4); and / or The first inertial cam (30) is directly or indirectly arranged on the first pawl seat (4), and between a third limited angle and a fourth limited angle, the first inertial cam (30) is rotatable relative to the first pawl seat (4); and / or One end of the first separation spring (18) is directly or indirectly arranged on the first friction cam (5), and under the action of the moment of inertia of the first inertial cam (30), the other end of the first separation spring (18) selectively achieves contact with the first ratchet wheel (2), or the other end of the first separation spring (18) selectively achieves disengagement from the first ratchet wheel (2); and / or The first friction cam (5) is directly or indirectly connected with the first pawl (1); and / or The first return spring (3) is directly or indirectly connected with the first pawl (1); and / or The first pawl (1) and the first ratchet wheel (2) selectively achieve engagement or disengagement when the first friction cam (5) rotates to the first limited angle position relative to the first pawl seat (4); and / or The first pawl (1) and the first ratchet wheel (2) selectively achieve engagement or disengagement when the first friction cam (5) rotates to the first limited angle position relative to the first pawl seat (4); and / or when the first friction cam (5) rotates to the second limited angular position relative to the first pawl seat (4), the first pawl (1) is out of contact with the first ratchet wheel (2); and / or when the first inertia cam (30) rotates to the third limited angular position relative to the first pawl seat (4), the other end of the first separation spring (18) is in contact with the first ratchet wheel (2); and / or when the first inertia cam (30) rotates to the fourth limited angular position relative to the first pawl seat (4), and when the first friction cam (5) rotates to the second limited angular position relative to the first pawl seat (4), the other end of the first separation spring (18) is out of contact with the first ratchet wheel (2); and / or the first ratchet wheel (2) and the first pawl seat (4) are connected with the parts of the machine respectively, or the first ratchet wheel (2) and the first pawl seat (4) are connected with the parts of the device respectively, or the first ratchet wheel (2) and the first pawl seat (4) are connected with the parts of the transmission system respectively, or the first ratchet wheel (2) and the first pawl seat (4) are connected with the parts of the mechanism respectively; and / or the first pawl (1) comprises at least one or more parts; and / or the first ratchet wheel (2) comprises at least one or more parts; and / or the first return spring (3) comprises at least one or more parts; and / or the first pawl seat (4) comprises at least one or more parts; and / or the first friction cam (5) comprises at least one or more parts; and / or the first separation spring (18) comprises at least one or more parts; and / or the first inertia cam (30) comprises at least one or more parts.

3. The friction-actuated ratchet clutch with inertia cam according to claim 1, wherein: the pawl comprises at least a first pawl (1); and / or the ratchet wheel comprises at least a first ratchet wheel (2); and / or the return spring comprises at least a first return spring (3); and / or the pawl seat comprises at least a first pawl seat (4); and / or the friction cam comprises at least a first friction cam (5); and / or the separation spring comprises at least a first separation spring (18); and / or the inertia cam comprises at least a first inertia cam (30); and / or the first pawl (1) is directly or indirectly arranged on the first pawl seat (4) within a certain angular range, and the first pawl (1) is rotatable relative to the first pawl seat (4), or the first pawl (1) is directly or indirectly arranged on the first friction cam (5) within a certain angular range, and the first pawl (1) is rotatable relative to the first pawl seat (4); and / or the first friction cam (5) is directly or indirectly arranged on the first pawl seat (4) between a first limited angular position and a second limited angular position, and the first friction cam (5) is rotatable relative to the first pawl seat (4); and / or The first inertia cam (30) is directly or indirectly arranged on the first friction cam (5), and is rotatable relative to the first friction cam (5) between a third limit angle and a fourth limit angle; and / or One end of the first separation spring (18) is directly or indirectly arranged on the first friction cam (5), and the other end of the first separation spring (18) selectively contacts or is separated from the first ratchet wheel (2) under the action of the moment of inertia of the first inertia cam (30); and / or The first friction cam (5) is directly or indirectly connected with the first pawl (1); and / or The first return spring (3) is directly or indirectly connected with the first pawl (1); and / or When the first friction cam (5) rotates to the first limit angle position relative to the first pawl seat (4), the first pawl (1) selectively engages or disengages with the first ratchet wheel (2); and / or When the first friction cam (5) rotates to the second limit angle position relative to the first pawl seat (4), the first pawl (1) is separated from the first ratchet wheel (2); and / or When the first inertia cam (30) rotates to the third limit angle position relative to the first friction cam (5), the other end of the first separation spring (18) contacts the first ratchet wheel (2); and / or When the first inertia cam (30) rotates to the fourth limit angle position relative to the first friction cam (5), the other end of the first separation spring (18) is separated from the first ratchet wheel (2); and / or The first ratchet wheel (2) and the first pawl seat (4) are respectively connected with parts of the machine, or the first ratchet wheel (2) and the first pawl seat (4) are respectively connected with parts of the device, or the first ratchet wheel (2) and the first pawl seat (4) are respectively connected with parts of the transmission system, or the first ratchet wheel (2) and the first pawl seat (4) are respectively connected with parts of the mechanism; and / or The first pawl (1) comprises at least one or more parts; and / or The first ratchet wheel (2) comprises at least one or more parts; and / or The first return spring (3) comprises at least one or more parts; and / or The first pawl seat (4) comprises at least one or more parts; and / or The first friction cam (5) comprises at least one or more parts; and / or The first separation spring (18) comprises at least one or more parts; and / or The first inertia cam (30) comprises at least one or more parts.

4. The friction-actuated ratchet clutch provided with an inertia cam according to claim 1, wherein: The pawl comprises at least a first pawl (1); and / or The ratchet wheel comprises at least a first ratchet wheel (2); and / or The return spring comprises at least a first return spring (3); and / or The pawl seat comprises at least a first pawl seat (4); and / or The friction cam comprises at least a first friction cam (5); and / or The separation spring comprises at least a first separation spring (18); and / or The inertia cam comprises at least a first inertia cam (30). The pawl seat comprises at least a first pawl seat (4); and / or The friction cam comprises at least a first friction cam (5); and / or The separation spring comprises at least a first separation spring (18); and / or The inertia cam comprises at least a first inertia cam (30); and / or The first pawl (1) is directly or indirectly arranged on the first pawl seat (4) within a certain angle range, and the first pawl (1) is rotatable relative to the first pawl seat (4), or the first pawl (1) is directly or indirectly arranged on the first friction cam (5) within a certain angle range, and the first pawl (1) is rotatable relative to the first pawl seat (4); and / or The first friction cam (5) is directly or indirectly arranged on the first pawl seat (4) between a first limited angle and a second limited angle, and the first friction cam (5) is rotatable relative to the first pawl seat (4); and / or The first inertia cam (30) is directly or indirectly arranged on the first separation spring (18) between a third limited angle and a fourth limited angle, and the first inertia cam (30) is rotatable relative to the first separation spring (18); and / or One end of the first separation spring (18) is directly or indirectly arranged on the first friction cam (5), and under the action of the moment of inertia of the first inertia cam (30), the other end of the first separation spring (18) selectively realizes contact with the first ratchet wheel (2), or the other end of the first separation spring (18) selectively realizes disengagement from the first ratchet wheel (2); and / or The first friction cam (5) is directly or indirectly connected with the first pawl (1); and / or The first return spring (3) is directly or indirectly connected with the first pawl (1); and / or When the first friction cam (5) rotates to the first limited angle position relative to the first pawl seat (4), the first pawl (1) selectively realizes engagement and disengagement with the first ratchet wheel (2); and / or When the first friction cam (5) rotates to the second limited angle position relative to the first pawl seat (4), the first pawl (1) is disengaged from the first ratchet wheel (2); and / or When the first inertia cam (30) rotates to the third limited angle position relative to the first separation spring (18), the other end of the first separation spring (18) is in contact with the first ratchet wheel (2); and / or When the first inertia cam (30) rotates to the fourth limited angle position relative to the first separation spring (18), the other end of the first separation spring (18) is disengaged from the first ratchet wheel (2); and / or The first ratchet (2) and the first pawl seat (4) are connected with parts of the machine, or the first ratchet (2) and the first pawl seat (4) are connected with parts of the device, or the first ratchet (2) and the first pawl seat (4) are connected with parts of the transmission system, or the first ratchet (2) and the first pawl seat (4) are connected with parts of the mechanism; and / or The first pawl (1) comprises at least one or more parts; and / or The first ratchet (2) comprises at least one or more parts; and / or The first return spring (3) comprises at least one or more parts; and / or The first pawl seat (4) comprises at least one or more parts; and / or The first friction cam (5) comprises at least one or more parts; and / or The first separation spring (18) comprises at least one or more parts; and / or The first inertia cam (30) comprises at least one or more parts.

5. The friction-actuated ratchet clutch with inertia cam as claimed in claim 1, wherein: The pawl comprises at least a first pawl (1); and / or The ratchet comprises at least a first ratchet (2); and / or The return spring comprises at least a first return spring (3); and / or The pawl seat comprises at least a first pawl seat (4); and / or The friction cam comprises at least a first friction cam (5); and / or The separation spring comprises at least a first separation spring (18); and / or The inertia cam comprises at least a first inertia cam (30); and / or The first pawl (1) is directly or indirectly arranged on the first pawl seat (4) within a certain angle range, the first pawl (1) is rotatable relative to the first pawl seat (4), or the first pawl (1) is directly or indirectly arranged on the first friction cam (5) within a certain angle range, the first pawl (1) is rotatable relative to the first pawl seat (4); and / or The first friction cam (5) is directly or indirectly arranged on the first pawl seat (4) between a first limited angle and a second limited angle, the first friction cam (5) is rotatable relative to the first pawl seat (4); and / or The first inertia cam (30) is directly or indirectly arranged on the first ratchet (2) between a third limited angle and a fourth limited angle, the first inertia cam (30) is rotatable relative to the first ratchet (2); and / or One end of the first separation spring (18) is directly or indirectly arranged on the first ratchet (2), under the action of the moment of inertia of the first inertia cam (30), the other end of the first separation spring (18) selectively realizes contact with the first friction cam (5), or the other end of the first separation spring (18) selectively realizes disengagement from the first friction cam (5); and / or The first friction cam (5) is directly or indirectly connected with the first pawl (1); and / or The first return spring (3) is directly or indirectly connected with the first pawl (1); and / or The first pawl (1) and the first ratchet wheel (2) are selectively engaged or disengaged when the first friction cam (5) is rotated to the first or second limited angular position relative to the first pawl seat (4); and / or The first pawl (1) and the first ratchet wheel (2) are disengaged when the first friction cam (5) is rotated to the second limited angular position relative to the first pawl seat (4); and / or The other end of the first separation spring (18) is in contact with the first friction cam (5) when the first inertia cam (30) is rotated to the third limited angular position relative to the first ratchet wheel (2); and / or The other end of the first separation spring (18) is disengaged from the first friction cam (5) when the first inertia cam (30) is rotated to the fourth limited angular position relative to the first ratchet wheel (2); and / or The first ratchet wheel (2) and the first pawl seat (4) are respectively connected with the parts of the machine, or the first ratchet wheel (2) and the first pawl seat (4) are respectively connected with the parts of the device, or the first ratchet wheel (2) and the first pawl seat (4) are respectively connected with the parts of the transmission system, or the first ratchet wheel (2) and the first pawl seat (4) are respectively connected with the parts of the mechanism; and / or The first pawl (1) comprises at least one or more parts; and / or The first ratchet wheel (2) comprises at least one or more parts; and / or The first return spring (3) comprises at least one or more parts; and / or The first pawl seat (4) comprises at least one or more parts; and / or The first friction cam (5) comprises at least one or more parts; and / or The first separation spring (18) comprises at least one or more parts; and / or The first inertia cam (30) comprises at least one or more parts.

6. The friction-actuated ratchet clutch with inertia cam according to claim 1, wherein: The pawl comprises at least a first pawl (1); and / or The ratchet wheel comprises at least a first ratchet wheel (2); and / or The return spring comprises at least a first return spring (3); and / or The pawl seat comprises at least a first pawl seat (4); and / or The friction cam comprises at least a first friction cam (5); and / or The separation spring comprises at least a first separation spring (18); and / or The inertia cam comprises at least a first inertia cam (30); and / or The first pawl (1) is directly or indirectly arranged on the first pawl seat (4) within a certain angular range, the first pawl (1) is rotatable relative to the first pawl seat (4), or the first pawl (1) is directly or indirectly arranged on the first friction cam (5) within a certain angular range, the first pawl (1) is rotatable relative to the first pawl seat (4); and / or The first friction cam (5) is directly or indirectly arranged on the first pawl seat (4), and is rotatable relative to the first pawl seat (4) between a first limited angle and a second limited angle; and / or The first inertia cam (30) is directly or indirectly arranged on the first separation spring (18), and is rotatable relative to the first separation spring (18) between a third limited angle and a fourth limited angle; and / or One end of the first separation spring (18) is directly or indirectly arranged on the first ratchet wheel (2), and the other end of the first separation spring (18) selectively contacts or is separated from the first friction cam (5) under the action of the moment of inertia of the first inertia cam (30); and / or The first friction cam (5) is directly or indirectly connected with the first pawl (1); and / or The first return spring (3) is directly or indirectly connected with the first pawl (1); and / or When the first friction cam (5) rotates to the first limited angle position relative to the first pawl seat (4), the first pawl (1) selectively engages or disengages with the first ratchet wheel (2); and / or When the first friction cam (5) rotates to the second limited angle position relative to the first pawl seat (4), the first pawl (1) is separated from the first ratchet wheel (2); and / or When the first inertia cam (30) rotates to the third limited angle position relative to the first separation spring (18), the other end of the first separation spring (18) contacts the first friction cam (5); and / or When the first inertia cam (30) rotates to the fourth limited angle position relative to the first separation spring (18), the other end of the first separation spring (18) is separated from the first friction cam (5); and / or The first ratchet wheel (2) and the first pawl seat (4) are respectively connected with parts of the machine, or the first ratchet wheel (2) and the first pawl seat (4) are respectively connected with parts of the device, or the first ratchet wheel (2) and the first pawl seat (4) are respectively connected with parts of the transmission system, or the first ratchet wheel (2) and the first pawl seat (4) are respectively connected with parts of the mechanism; and / or The first pawl (1) comprises at least one or more parts; and / or The first ratchet wheel (2) comprises at least one or more parts; and / or The first return spring (3) comprises at least one or more parts; and / or The first pawl seat (4) comprises at least one or more parts; and / or The first friction cam (5) comprises at least one or more parts; and / or The first separation spring (18) comprises at least one or more parts; and / or The first inertia cam (30) comprises at least one or more parts.

7. The inertia cam-equipped friction-actuated ratchet clutch according to any one of claims 2-6, wherein: the friction cam and the pawl seat have angular positioning function when the friction cam rotates to the first defined angular position relative to the pawl seat; and / or the friction cam and the pawl seat have angular positioning function when the friction cam rotates to the second defined angular position relative to the pawl seat; and / or the inertia cam and the pawl seat have angular positioning function when the inertia cam rotates to the third defined angular position relative to the pawl seat; and / or the inertia cam and the pawl seat have angular positioning function when the inertia cam rotates to the fourth defined angular position relative to the pawl seat.

8. The inertia cam-equipped friction-actuated ratchet clutch according to any one of claims 2-6, wherein: the friction cam and the pawl seat have angular positioning function through a series of bosses and / or grooves when the friction cam rotates to the first defined angular position relative to the pawl seat; and / or the friction cam and the pawl seat have angular positioning function through a series of bosses and / or grooves when the friction cam rotates to the second defined angular position relative to the pawl seat; and / or the inertia cam and the pawl seat have angular positioning function through a series of bosses and / or grooves when the inertia cam rotates to the third defined angular position relative to the pawl seat; and / or the inertia cam and the pawl seat have angular positioning function through a series of bosses and / or grooves when the inertia cam rotates to the fourth defined angular position relative to the pawl seat.

9. The inertia cam-equipped friction-actuated ratchet clutch according to any one of claims 2-6, wherein: the inertia cam-equipped friction-actuated ratchet clutch at least comprises a positioning mechanism (8); and / or the friction cam and the pawl seat have angular positioning function through the positioning mechanism (8) when the friction cam rotates to the first defined angular position relative to the pawl seat; and / or the friction cam and the pawl seat have angular positioning function through the positioning mechanism (8) when the friction cam rotates to the second defined angular position relative to the pawl seat; and / or the inertia cam and the pawl seat have angular positioning function through the positioning mechanism (8) when the inertia cam rotates to the third defined angular position relative to the pawl seat; and / or the inertia cam and the pawl seat have angular positioning function through the positioning mechanism (8) when the inertia cam rotates to the fourth defined angular position relative to the pawl seat; and / or the first separation spring (18) at least comprises a first separation spring support (181) and a first separation spring friction pad (182); and / or the first separation spring support (181) at least has certain elastic deformation ability; and / or ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ ​ One end of the first separation spring support (181) is directly or indirectly fixed on the first friction cam (5), the other end of the first separation spring support (181) is fixedly connected with the first separation spring friction pad (182), or one end of the first separation spring support (181) is directly or indirectly fixed on the first ratchet wheel (2), the other end of the first separation spring support (181) is fixedly connected with the first separation spring friction pad (182); and / or The first separation spring friction pad (182) is in contact with the first ratchet wheel (2), or the first separation spring friction pad (182) is in contact with the first friction cam (5).

10. The friction-actuated ratchet clutch with inertial cam according to any one of claims 1-6, characterized in that: The friction cam is directly or indirectly arranged on the pawl seat via bearings; and / or The inertial cam is directly or indirectly arranged on the pawl seat via bearings, or the inertial cam is directly or indirectly arranged on the friction cam via bearings, or the inertial cam is directly or indirectly arranged on the separation spring via bearings, or the inertial cam is directly or indirectly arranged on the ratchet wheel via bearings; and / or The ratchet wheel is connected with the pawl seat directly or indirectly via bearings.

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