Clutch

Abstract

The invention provides a clutch, and belongs to the technical field of driving equipment. The clutch comprises a flywheel flange, a driven cover, a connecting shaft, a plurality of transition blocks and a plurality of friction frames. The flywheel flange comprises a driving disc and a driving barrel, the driving barrel and the driving disc are coaxially connected, the driving barrel and the driving disc movably sleeve the first end of the connecting shaft, the driven cover fixedly sleeves the second end of the connecting shaft, the driven cover surrounds the driving barrel, and the driven cover and the driving barrel define an annular inner cavity; the transition blocks and the friction frames are located in the annular inner cavity, the transition blocks correspond to the friction frames one to one, the multiple transition blocks are arranged outside the driving cylinder in the circumferential direction at intervals, the friction frames are movably connected with the corresponding transition blocks, and the friction frames are configured to slide relative to the corresponding transition blocks in the radial direction of the connecting shaft. Separating and combining functions of the clutch can be automatically completed, and the use efficiency of the clutch is improved.

Description

Technical Field

[0001] The present disclosure relates to the technical field of driving devices, and particularly relates to a clutch. Background Art

[0002] A clutch is a common power transmission device, mainly used to cut off or transmit the power output from a power source to a shafting structure. With the development of construction machinery, the requirements for clutches are getting higher and higher. The clutch needs to adapt to different speed conditions, be lightweight and have high safety and reliability.

[0003] In related technologies, a clutch includes a flywheel, a driven disk and a control component. One of the flywheel and the driven disk is in transmission connection with a power source (such as an engine), and the other of the flywheel and the driven disk is in transmission connection with a component to be driven. The control component is used to control the engagement or separation of the flywheel and the driven disk, so as to control whether the power output from the power source is output to the component to be driven.

[0004] However, the clutch in related technologies requires technicians to manually control the engagement and separation of the clutch, so as to achieve the purpose of controlling whether the power of the power source is interrupted. Therefore, the control mode is relatively complex, which is not conducive to quickly completing the engagement or separation of the clutch. Summary of the Invention

[0005] Embodiments of the present disclosure provide a clutch, which can automatically complete the separation and engagement functions of the clutch without manual control by technicians, and improve the use efficiency of the clutch. The technical solution is as follows:

[0006] Embodiments of the present disclosure provide a clutch, which includes: a flywheel flange, a driven cover, a connecting shaft, a plurality of transition blocks and a plurality of friction frames; the flywheel flange includes a driving disk and a driving cylinder, the driving cylinder is coaxially connected to the driving disk, both the driving cylinder and the driving disk are movably sleeved on the first end of the connecting shaft, the driven cover is fixedly sleeved on the second end of the connecting shaft, and the driven cover surrounds and encloses the driving cylinder, and an annular inner cavity is formed between the driven cover and the driving cylinder; both the transition blocks and the friction frames are located in the annular inner cavity, the transition blocks correspond to the friction frames one by one, the plurality of transition blocks are circumferentially arranged at intervals outside the driving cylinder, the friction frames are movably connected to the corresponding transition blocks, and the friction frames are configured to be able to slide relative to the corresponding transition blocks in the radial direction of the connecting shaft.

[0007] In one implementation manner of the embodiment of the present disclosure, opposite surfaces of the transition block are provided with connection holes; the friction bracket includes a U-shaped plate and connection bolts. The U-shaped plate clamps the transition block. Two parallel side plates of the U-shaped plate are respectively opposite to the two connection holes of the transition block, and both side plates of the U-shaped plate are provided with stepped holes. The stepped holes are coaxially opposite to the connection holes. The stepped hole includes a first hole section and a second hole section connected coaxially. The diameter of the first hole section is larger than the aperture of the second hole section, the aperture of the second hole section is smaller than the aperture of the connection hole, and the second hole section is coaxially opposite to the connection hole; the connection bolts correspond to the connection holes one by one. The connection bolts pass through the stepped holes and are inserted into the corresponding connection holes, and the connection bolts are threadedly connected to the second hole section.

[0008] In another implementation manner of the embodiment of the present disclosure, the friction bracket further includes an inflatable airbag. The inflatable airbag is located in the annular inner cavity. The inflatable airbag is connected to the arc-shaped plate of the U-shaped plate, and the inflatable airbag is located on the surface of the U-shaped plate away from the transition block.

[0009] In another implementation manner of the embodiment of the present disclosure, a resistance-increasing plate is provided on the surface of the driven cover. The resistance-increasing plate is located in the annular inner cavity and is opposite to the friction bracket.

[0010] In another implementation manner of the embodiment of the present disclosure, the resistance-increasing plate includes at least one of a rubber plate and an asbestos plate.

[0011] In another implementation manner of the embodiment of the present disclosure, the clutch further includes a connection spring. The connection spring is provided between adjacent two friction brackets, and two ends of the connection spring are respectively connected to adjacent two friction brackets.

[0012] In another implementation manner of the embodiment of the present disclosure, an internal spline is provided in the inner hole of the driven cover, an external spline is provided at the second end of the connecting shaft, the driven cover is sleeved outside the second end of the connecting shaft, and the driven cover is in spline connection with the connecting shaft.

[0013] In another implementation manner of the embodiment of the present disclosure, the clutch further includes a first annular baffle. A first annular clamping groove is provided at the second end of the connecting shaft. The first annular baffle is located in the first annular clamping groove, and the first annular baffle abuts against the end surface of the driven cover away from the flywheel flange.

[0014] In another implementation manner of the embodiment of the present disclosure, the clutch further includes a connecting bearing. The inner ring of the connecting bearing is sleeved on the first section of the connecting shaft, and the outer ring of the connecting bearing is inserted into the driving cylinder.

[0015] In another implementation of the embodiment of the present disclosure, the clutch also includes a second annular baffle, a second annular groove is provided at the first end of the connecting shaft, the second annular baffle is located in the second annular groove, and the second annular baffle is abutted against the side of the connecting bearing away from the driven cover.

[0016] The beneficial effects brought by the technical solution provided by the embodiments of the present disclosure include at least:

[0017] The disclosed embodiment provides a clutch in which the flywheel flange and the driven cover are both sleeved outside the connecting shaft, wherein the flywheel flange is movably sleeved outside the connecting shaft, that is, the flywheel flange can rotate relative to the connecting shaft. A transition block and a friction frame are also provided in the annular inner cavity between the driving cylinder and the driven cover of the flywheel flange, the transition block is fixed on the outer peripheral wall of the driving cylinder, the friction frame corresponds to the transition block one by one, and the friction frame is connected to the corresponding transition block, and the friction frame can slide on the transition block along the radial direction of the connecting shaft.

[0018] When the clutch is controlled to engage, the power source drives the drive plate of the flywheel flange to rotate, and the drive cylinder also rotates with the transition block. As the speed of the flywheel flange gradually increases, the centrifugal force on the friction frame gradually increases. When the centrifugal force is large enough to allow the friction frame to slide radially relative to the transition block, and the friction frame and the inner wall surface of the driven cover are in contact and tightly against each other, the friction force between the friction frame and the driven cover is also large enough to allow the friction frame to rotate with the driven cover. Since the driven cover is fixedly sleeved outside the connecting shaft, the driven cover can also drive the connecting shaft to rotate, so that the driven component to be driven that is transmission-connected to the connecting shaft rotates, and the clutch is automatically engaged.

[0019] When the clutch needs to be disengaged, it is only necessary to control the power source to stop driving the flywheel flange to rotate, so that the speed of the flywheel flange gradually decreases, so that the centrifugal force on the friction frame is not enough to make the friction frame contact with the inner wall surface of the driven cover, so that the friction frame cannot drive the driven cover to rotate together, that is, the flywheel flange and the driven cover are in a separated state, and the clutch is automatically separated.

[0020] The clutch provided in the embodiment of the present disclosure does not require additional operating components to allow the clutch to automatically complete the engagement and disengagement actions, thereby conveniently and quickly completing the transmission and interruption of power. The structure is simple and convenient for maintenance and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is the front view of a clutch provided by an embodiment of the present disclosure;

[0023] Figure 2 is Figure 1 a provided AA sectional view;

[0024] Figure 3 It is the assembly schematic diagram of a transition block and a friction bracket provided by an embodiment of the present disclosure;

[0025] Figure 4 It is the front view of a driven cover provided by an embodiment of the present disclosure;

[0026] Figure 5 It is the side view of a driven cover provided by an embodiment of the present disclosure;

[0027] Figure 6 It is the structural schematic diagram of a connecting shaft provided by an embodiment of the present disclosure.

[0028] The descriptions of each mark in the figure are as follows:

[0029] 10. Flywheel flange; 11. Driving disc; 12. Driving cylinder;

[0030] 20. Driven cover; 21. Resistance increasing plate; 22. Internal spline;

[0031] 30. Connecting shaft; 31. External spline; 32. First annular groove; 33. Second annular groove;

[0032] 40. Transition block; 41. Connecting hole;

[0033] 50. Friction bracket;

[0034] 51. U-shaped plate; 511. First hole section; 512. Second hole section;

[0035] 52. Connecting bolt;

[0036] 53. Inflatable airbag;

[0037] 60. Annular inner cavity;

[0038] 70. Connecting spring;

[0039] 81. First annular baffle; 82. Second annular baffle; 83. Connecting bearing. Specific embodiments

[0040] To make the purpose, technical solutions and advantages of the present disclosure clearer, the following will further describe the embodiments of the present disclosure in detail with reference to the accompanying drawings.

[0041] Unless otherwise defined, technical terms or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which this disclosure pertains. The terms "first", "second", "third" and similar terms used in the specification and claims of this patent application of the disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. Terms such as "comprising" or "including" mean that the elements or objects appearing before "comprising" or "including" cover the elements or objects listed after "comprising" or "including" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left", "right", "top", "bottom" are only used to indicate relative positional relationships, and when the absolute position of the object being described changes, the relative positional relationships may also change accordingly.

[0042] Figure 1 is the front view of a clutch provided by an embodiment of the present disclosure. Figure 2 is Figure 1 a provided AA sectional view. As Figure 1 、 2 shown, the clutch includes: a flywheel flange 10, a driven cover 20, a connecting shaft 30, a plurality of transition blocks 40 and a plurality of friction brackets 50.

[0043] As Figure 2 shown, the flywheel flange 10 includes a driving disk 11 and a driving cylinder 12. The driving cylinder 12 is coaxially connected to the driving disk 11. Both the driving cylinder 12 and the driving disk 11 are movably sleeved on the first end of the connecting shaft 30. The driven cover 20 is fixedly sleeved on the second end of the connecting shaft 30, and the driven cover 20 surrounds and encloses the driving cylinder 12. The driven cover 20 and the driving cylinder 12 define an annular inner cavity 60.

[0044] As Figure 2 shown, both the transition blocks 40 and the friction brackets 50 are located in the annular inner cavity 60. The transition blocks 40 and the friction brackets 50 are in one-to-one correspondence. The plurality of transition blocks 40 are circumferentially spaced apart outside the driving cylinder 12. The friction brackets 50 are movably connected to the corresponding transition blocks 40, and the friction brackets 50 are configured to be able to slide relative to the corresponding transition blocks 40 in the radial direction of the connecting shaft 30.

[0045] The flywheel flange 10 and the driven cover 20 of the clutch provided in the embodiment of the present disclosure are both sleeved outside the connecting shaft 30, wherein the flywheel flange 10 is movably sleeved outside the connecting shaft 30, that is, the flywheel flange 10 can rotate relative to the connecting shaft 30. A transition block 40 and a friction frame 50 are also provided in the annular inner cavity 60 between the driving cylinder 12 of the flywheel flange 10 and the driven cover 20, the transition block 40 is fixed on the outer peripheral wall of the driving cylinder 12, the friction frame 50 corresponds to the transition block 40 one by one, and the friction frame 50 is connected to the corresponding transition block 40, and the friction frame 50 can slide on the transition block 40 along the radial direction of the connecting shaft 30.

[0046] When the clutch is controlled to engage, the power source drives the drive plate 11 of the flywheel flange 10 to rotate, and the drive cylinder 12 also rotates with the transition block 40. As the speed of the flywheel flange 10 gradually increases, the centrifugal force on the friction frame 50 gradually increases. When the centrifugal force is large enough to allow the friction frame 50 to slide radially relative to the transition block 40, and the friction frame 50 and the inner wall surface of the driven cover 20 are in contact and tightly against each other, the friction force between the friction frame 50 and the driven cover 20 is also large enough to allow the friction frame 50 to rotate with the driven cover 20. Since the driven cover 20 is fixedly sleeved outside the connecting shaft 30, the driven cover 20 can also drive the connecting shaft 30 to rotate, so that the driven component to be driven that is transmission-connected to the connecting shaft 30 rotates, that is, the clutch is automatically engaged.

[0047] When the clutch needs to be disengaged, it is only necessary to control the power source to stop driving the flywheel flange 10 to rotate, so that the rotation speed of the flywheel flange 10 gradually decreases, so that the centrifugal force on the friction frame 50 is insufficient to make the friction frame 50 contact the inner wall surface of the driven cover 20, so that the friction frame 50 cannot drive the driven cover 20 to rotate together, that is, the flywheel flange 10 and the driven cover 20 are in a separated state, and the clutch is automatically disengaged.

[0048] The clutch provided in the embodiment of the present disclosure does not require additional operating components to allow the clutch to automatically complete the engagement and disengagement actions, thereby conveniently and quickly completing the transmission and interruption of power. The structure is simple and convenient for maintenance and replacement.

[0049] Figure 3 FIG. 4 is a schematic diagram of an assembly of a transition block 40 and a friction frame 50 provided in an embodiment of the present disclosure. Figure 3 As shown, two opposite surfaces of the transition block 40 have connecting holes 41 .

[0050] like Figure 3As shown, the friction bracket 50 includes a U-shaped plate 51 and a connecting bolt 52. The U-shaped plate 51 clamps the transition block 40. The two parallel side plates of the U-shaped plate 51 are respectively opposite to the two connecting holes 41 of the transition block 40, and both side plates of the U-shaped plate 51 have stepped holes, and the stepped holes are coaxially opposite to the connecting holes 41. The stepped hole includes a first hole section 511 and a second hole section 512 connected coaxially. The diameter of the first hole section 511 is larger than the aperture of the second hole section 512, and the aperture of the second hole section 512 is smaller than the aperture of the connecting hole 41, and the second hole section 512 is coaxially opposite to the connecting hole 41.

[0051] As Figure 3 shown, the connecting bolts 52 correspond to the connecting holes 41 one by one. The connecting bolts 52 pass through the stepped holes and are inserted into the corresponding connecting holes 41, and the connecting bolts 52 are threadedly connected to the second hole section 512.

[0052] In the above implementation, the friction bracket 50 clamps the transition block 40 through the U-shaped plate 51, and the two parallel side plates of the U-shaped plate 51 are attached to the end surface of the transition block 40 provided with the connecting holes 41. And the two parallel side plates on the U-shaped plate 51 are also provided with stepped holes coaxially opposite to the connecting holes 41. In this way, the connecting bolts 52 can pass through the stepped holes and be inserted into the connecting holes 41.

[0053] Among them, the second hole section 512 of the stepped hole is smaller than the aperture of the first hole section 511, and the second hole section 512 is used for threaded connection with the connecting bolt 52, while the first hole section 511 is used for accommodating the nut of the connecting bolt 52 to prevent the connecting nut from protruding from the surface of the U-shaped plate 51.

[0054] Moreover, the aperture of the second hole section 512 is smaller than the aperture of the connecting hole 41, that is, the aperture of the connecting hole 41 is larger than the diameter of the connecting bolt 52. Therefore, the connecting bolt 52 and the connecting hole 41 are in clearance fit. In this way, the connecting bolt 52 can shake radially along the connecting shaft 30 in the connecting hole 41, and the purpose of enabling the friction bracket 50 to slide radially relative to the transition block 40 along the connecting shaft 30 is achieved.

[0055] In some other implementations, two opposite surfaces of the transition block 40 have connecting holes 41. The friction bracket 50 includes a U-shaped plate 51 and a connecting bolt 52. The U-shaped plate 51 clamps the transition block 40. The two parallel side plates of the U-shaped plate 51 are respectively opposite to the two connecting holes 41 of the transition block 40, and both side plates of the U-shaped plate 51 have long holes, and the long holes are opposite to the connecting holes 41.

[0056] Among them, the connecting bolts 52 correspond to the connecting holes 41 one by one. The connecting bolts 52 pass through the long holes and are threadedly connected to the corresponding connecting holes 41.

[0057] In this implementation, the nut of the connecting bolt 52 is located within the long slot and can slide along the length direction of the long slot. In this way, when the U-shaped plate 51 is subject to centrifugal force, the U-shaped plate 51 can slide radially along the connecting shaft 30 relative to the connecting bolt 52 by utilizing the long slot, thereby achieving the purpose of enabling the friction bracket 50 to slide radially along the connecting shaft 30 relative to the transition block 40.

[0058] Optionally, as Figure 2 , 3 shown, the friction bracket 50 further includes an inflatable airbag 53. The inflatable airbag 53 is located within the annular inner cavity 60, is connected to the arc-shaped plate of the U-shaped plate 51, and is located on the surface of the U-shaped plate 51 that is away from the transition block 40.

[0059] In the embodiment of the present disclosure, by inflating the inflatable airbag 53, the volume of the inflatable airbag 53 is increased, thereby reducing the gap between the inflatable airbag 53 and the inner wall surface of the driven cover 20. In this way, when the rotational speed of the flywheel flange 10 is relatively low, that is, when the friction bracket 50 is subject to a relatively small centrifugal force, at this time, the friction bracket 50 only needs to move radially by a relatively small distance to enable the inflatable airbag 53 of the friction bracket 50 to contact the inner wall surface of the driven cover 20, achieving the purpose of driving the driven cover 20 to rotate by the friction bracket 50.

[0060] By deflating the inflatable airbag 53, the volume of the inflatable airbag 53 is reduced, thereby increasing the gap between the inflatable airbag 53 and the inner wall surface of the driven cover 20. In this way, only by increasing the rotational speed of the flywheel flange 10 to make the friction bracket 50 subject to a relatively large centrifugal force and causing the friction bracket 50 to move radially by a relatively large distance can the inflatable airbag 53 of the friction bracket 50 contact the inner wall surface of the driven cover 20, achieving the purpose of driving the driven cover 20 to rotate by the friction bracket 50.

[0061] In the above implementation, by utilizing the inflatable airbag 53, the purpose of adjusting the engagement between the flywheel flange 10 and the driven cover 20 at different rotational speeds can be achieved, improving the applicability of the clutch.

[0062] Optionally, as Figure 2 shown, a resistance-increasing plate 21 is provided on the surface of the driven cover 20. The resistance-increasing plate 21 is located within the annular inner cavity 60 and is opposite to the friction bracket 50.

[0063] By providing the resistance-increasing plate 21, the frictional force between the friction bracket 50 and the driven cover 20 can be increased, enabling the friction bracket 50 to more easily drive the driven cover 20 to rotate after contacting the driven cover 20.

[0064] Optionally, the resistance-increasing plate 21 includes at least one of a rubber plate and an asbestos plate.

[0065] Exemplarily, the resistance-increasing plate 21 can be an asbestos plate.

[0066] The asbestos board has a relatively high friction coefficient, which enables the asbestos board to be in close contact with the friction holder 50, making it easier for the friction holder 50 to drive the driven cover 20 to rotate. The asbestos board also has excellent wear resistance and corrosion resistance, which can reduce wear and corrosion, thereby extending the service life.

[0067] In some other implementation manners, a groove is provided on the inner wall surface of the driven cover 20, and the groove is used to install the resistance increasing plate 21. And, the friction holder 50 further includes an electromagnet, and the electromagnet is also located in the groove. The electromagnet is located at the bottom of the groove, and the resistance increasing plate 21 covers the electromagnet, and at least part of the resistance increasing plate 21 is located outside the groove.

[0068] Among them, the U-shaped plate 51 of the friction holder 50 can be a metal iron plate.

[0069] In this way, when it is necessary to control the combination of the flywheel flange 10 and the driven cover 20, the electromagnet can also be energized so that the electromagnet can adsorb the friction holder 50. That is, with the assistance of the electromagnet, it is easier for the flywheel flange 10 and the driven cover 20 to be combined, avoiding the problem of abnormal separation of the clutch due to the fluctuation of the rotational speed of the flywheel flange 10.

[0070] Optionally, as Figure 1 shown, the clutch further includes a connecting spring 70. A connecting spring 70 is provided between adjacent two friction holders 50, and both ends of the connecting spring 70 are respectively connected to the adjacent two friction holders 50.

[0071] By providing the connecting spring 70 between adjacent friction holders 50, under the restraint of the connecting spring 70, each friction holder 50 can move synchronously. That is, each friction holder 50 will overcome the elastic force of the connecting spring 70 by means of centrifugal force, so that each friction holder 50 can move closer to the inner wall surface of the driven cover 20 synchronously.

[0072] And, when the speed of the flywheel flange 10 gradually decreases, under the pulling force of the connecting spring 70, each friction holder 50 moves together towards the axis of the flywheel flange 10, thereby achieving the effect of separating and disengaging the flywheel flange 10 from the driven cover 20 and realizing the function of closing the power source.

[0073] Exemplarily, as Figure 1 shown, four friction holders 50 are circumferentially and evenly distributed in the annular inner cavity 60, and four connecting springs 70 are also provided. Each connecting spring 70 is arranged between adjacent two friction holders 50 and is connected to the two friction holders 50.

[0074] Figure 4 is the front view of a driven cover 20 provided by an embodiment of the present disclosure. Figure 5 is the side view of a driven cover 20 provided by an embodiment of the present disclosure. As Figure 4 、 5As shown, the inner hole of the driven cover 20 is provided with an internal spline 22.

[0075] Figure 6 FIG. is a schematic structural diagram of a connecting shaft 30 provided by an embodiment of the present disclosure. As Figure 6 shown, the second end of the connecting shaft 30 is provided with an external spline 31.

[0076] As Figure 2 shown, the driven cover 20 is sleeved outside the second end of the connecting shaft 30, and the driven cover 20 is in spline connection with the connecting shaft 30.

[0077] In the embodiment of the present disclosure, by providing the internal spline 22 in the inner hole of the driven cover 20, after the driven cover 20 is sleeved on the external spline 31 of the connecting shaft 30, circumferential locking is achieved between the driven cover 20 and the connecting shaft 30, so as to achieve the purpose of fixedly sleeving the driven cover 20 outside the connecting shaft 30.

[0078] Optionally, as Figure 2 , 6 shown, the clutch further includes a first annular baffle 81. The second end of the connecting shaft 30 is provided with a first annular groove 32. The first annular baffle 81 is located in the first annular groove 32, and the first annular baffle 81 abuts against the end face of the driven cover 20 away from the flywheel flange 10.

[0079] As Figure 2 shown, the clutch further includes a second annular baffle 82. The first end of the connecting shaft 30 is provided with a second annular groove 33. The second annular baffle 82 is located in the second annular groove 33, and the second annular baffle 82 abuts against the side of the connecting bearing 83 away from the driven cover 20.

[0080] As Figure 6 shown, annular grooves are provided at both ends of the connecting shaft 30. After the annular baffle is clamped in the annular groove, the flywheel flange 10 and the driven cover 20 can be restricted between the two annular baffles, so as to avoid the problem of loosening after the flywheel flange 10 and the driven cover 20 rotate rapidly, and improve the reliability of the clutch.

[0081] Optionally, as Figure 2 shown, the clutch further includes a connecting bearing 83. The inner ring of the connecting bearing 83 is sleeved on the first section of the connecting shaft 30, and the outer ring of the connecting bearing 83 is inserted into the driving cylinder 12.

[0082] Exemplarily, as Figure 2 shown, the clutch includes two connecting bearings 83, and the two connecting bearings 83 are arranged at intervals on the connecting shaft 30.

[0083] By arranging a connecting bearing 83 between the flywheel flange 10 and the connecting shaft 30, the friction between the rotating parts and the supporting parts is reduced by rolling or sliding, making the rotation between the flywheel flange 10 and the connecting shaft 30 smoother and reducing energy consumption. At the same time, reducing friction not only improves the mechanical efficiency but also enhances the accuracy and reliability of the equipment. Moreover, the connecting bearing 83 can bear radial and axial loads, distribute the force evenly, and prevent individual parts from bearing excessive stress, thereby prolonging the service life of the equipment.

[0084] The usage process of the clutch provided by the embodiment of the present disclosure is as follows:

[0085] First, the output shaft of the power source (such as an engine) is drivingly connected to one end of the flywheel flange 10 away from the driven cover 20.

[0086] As Figure 1 、 2 shown, a plurality of through holes arranged at circumferential intervals are provided on the peripheral edge of the driving disc 11 of the flywheel flange 10. The output shaft of the power source can be docked with the driving disc 11 through a flange, and the flange and the driving disc 11 are fixed together by bolts.

[0087] Then, the component to be driven is drivingly connected to the connecting shaft 30.

[0088] Specifically, it may include: using a coupling to drivingly connect one end of the connecting shaft 30 to the component to be driven.

[0089] Next, the flywheel flange 10 is driven to rotate by the power source, so that the flywheel flange 10 drives the transition block 40 to rotate together. As the rotational speed of the flywheel flange 10 gradually increases, when the centrifugal force received by the friction frame 50 is large enough, the friction frame 50 can slide radially relative to the transition block 40 and make the friction frame 50 contact and closely abut against the inner wall surface of the driven cover 20. In this way, the friction force between the friction frame 50 and the driven cover 20 is also large enough to allow the friction frame 50 to drive the driven cover 20 to rotate together. Therefore, the driven cover 20 can also drive the connecting shaft 30 to rotate, so that the component to be driven drivingly connected to the connecting shaft 30 rotates, that is, the clutch is automatically engaged.

[0090] Then, when it is necessary to stop working, the power source stops driving the flywheel flange 10 to rotate, and the rotational speed of the flywheel flange 10 gradually decreases. Through the pulling force of the connecting spring 70, each friction frame 50 moves closer to the axis of the flywheel flange 10 together, thereby achieving the effect of separating and disengaging the flywheel flange 10 from the driven cover 20 and realizing the function of shutting down the power source.

[0091] Meanwhile, if the current flywheel flange 10 needs to reach a relatively high rotational speed to engage with the driven cover 20, at this time, the inflatable airbag 53 can be inflated to increase the volume of the inflatable airbag 53, thereby reducing the gap between the inflatable airbag 53 and the inner wall surface of the driven cover 20. In this way, the friction bracket 50 only needs to move a small distance radially to bring the inflatable airbag 53 of the friction bracket 50 into contact with the inner wall surface of the driven cover 20, achieving the purpose of driving the driven cover 20 to rotate by the friction bracket 50.

[0092] If the current flywheel flange 10 engages with the driven cover 20 at a relatively low rotational speed and it is necessary to increase the engagement rotational speed, the inflatable airbag 53 can be deflated to reduce the volume of the inflatable airbag 53, thereby increasing the gap between the inflatable airbag 53 and the inner wall surface of the driven cover 20. In this way, the friction bracket 50 needs to move a large distance radially to bring the inflatable airbag 53 of the friction bracket 50 into contact with the inner wall surface of the driven cover 20, achieving the purpose of driving the driven cover 20 to rotate by the friction bracket 50.

[0093] The above is not any form of limitation to the present disclosure. Although the present disclosure has been disclosed as above through embodiments, it is not intended to limit the present disclosure. Any person skilled in the art can make some changes or modifications to equivalent embodiments with equivalent changes by using the disclosed technical content within the scope of the technical solution of the present disclosure. However, as long as it does not depart from the content of the technical solution of the present disclosure, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present disclosure still fall within the scope of the technical solution of the present disclosure.

Claims

1. A clutch, characterized in that: The clutch comprises: a flywheel flange (10), a driven cover (20), a connecting shaft (30), a plurality of transition blocks (40) and a plurality of friction frames (50); The flywheel flange (10) comprises a driving disc (11) and a driving cylinder (12), wherein the driving cylinder (12) is coaxially connected to the driving disc (11), the driving cylinder (12) and the driving disc (11) are both movably sleeved on the first end of the connecting shaft (30), the driven cover (20) is fixedly sleeved on the second end of the connecting shaft (30), and the driven cover (20) surrounds the driving cylinder (12), and the driven cover (20) and the driving cylinder (12) form an annular inner cavity (60); The transition block (40) and the friction frame (50) are both located in the annular inner cavity (60); the transition block (40) corresponds to the friction frame (50) one by one; a plurality of the transition blocks (40) are circumferentially spaced outside the driving cylinder (12); the friction frame (50) is movably connected to the corresponding transition block (40); and the friction frame (50) is configured to slide relative to the corresponding transition block (40) in the radial direction of the connecting shaft (30).

2. The clutch according to claim 1, characterized in that: The transition block (40) has connecting holes (41) on two opposite surfaces; The friction frame (50) comprises a U-shaped plate (51) and a connecting bolt (52), the U-shaped plate (51) clamps the transition block (40), two parallel side plates of the U-shaped plate (51) are respectively opposite to the two connecting holes (41) of the transition block (40), and the two side plates of the U-shaped plate (51) both have a stepped hole, the stepped hole is coaxially opposite to the connecting hole (41), the stepped hole comprises a first hole section (511) and a second hole section (512) which are coaxially connected, the diameter of the first hole section (511) is larger than the aperture of the second hole section (512), the aperture of the second hole section (512) is smaller than the aperture of the connecting hole (41), and the second hole section (512) is coaxially opposite to the connecting hole (41); The connecting bolts (52) correspond to the connecting holes (41) one by one. The connecting bolts (52) pass through the stepped holes and are inserted into the corresponding connecting holes (41). The connecting bolts (52) are threadedly connected to the second hole sections (512).

3. The clutch according to claim 2, characterized in that: The friction frame (50) further comprises an inflatable airbag (53), wherein the inflatable airbag (53) is located in the annular inner cavity (60), the inflatable airbag (53) is connected to the arc-shaped plate of the U-shaped plate (51), and the inflatable airbag (53) is located on the surface of the U-shaped plate (51) away from the transition block (40).

4. The clutch according to claim 2, characterized in that: A resistance increasing plate (21) is provided on the surface of the driven cover (20); the resistance increasing plate (21) is located in the annular inner cavity (60), and the resistance increasing plate (21) is opposite to the friction frame (50).

5. The clutch according to claim 4, characterized in that: The resistance increasing plate (21) comprises at least one of a rubber plate and an asbestos plate.

6. The clutch according to any one of claims 1 to 5, characterized in that: The clutch further comprises a connecting spring (70), wherein the connecting spring (70) is arranged between two adjacent friction frames (50), and the two ends of the connecting spring (70) are respectively connected to the two adjacent friction frames (50).

7. The clutch according to any one of claims 1 to 5, characterized in that: The inner hole of the driven cover (20) is provided with an inner spline (22), the second end of the connecting shaft (30) is provided with an outer spline (31), the driven cover (20) is sleeved outside the second end of the connecting shaft (30), and the driven cover (20) and the connecting shaft (30) are spline-connected.

8. The clutch according to any one of claims 1 to 5, characterized in that: The clutch further comprises a first annular baffle (81), a first annular groove (32) is provided at the second end of the connecting shaft (30), the first annular baffle (81) is located in the first annular groove (32), and the first annular baffle (81) abuts against an end surface of the driven cover (20) away from the flywheel flange (10).

9. The clutch according to any one of claims 1 to 5, characterized in that: The clutch further comprises a connecting bearing (83), the inner ring of the connecting bearing (83) being sleeved on the first section of the connecting shaft (30), and the outer ring of the connecting bearing (83) being inserted into the driving cylinder (12).

10. The clutch according to claim 9, characterized in that: The clutch further comprises a second annular baffle (82), a second annular groove (33) is provided at the first end of the connecting shaft (30), the second annular baffle (82) is located in the second annular groove (33), and the second annular baffle (82) abuts against a side of the connecting bearing (83) away from the driven cover (20).

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