Dynamic clutch device with braking function

Abstract

The invention discloses a dynamic clutch device with a braking function, which comprises a power output shaft and a power input shaft mounted on the power output shaft, a slidable clutch mechanism is mounted on the power input shaft, and a slidable braking mechanism is mounted on the power output shaft; the clutch mechanism and the brake mechanism synchronously and reversely move, and when the clutch mechanism is dynamically combined, the brake mechanism is loosened; and when the clutch mechanism is disengaged, the brake mechanism brakes. The clutch and the brake are subjected to synchronous dynamic clutch and brake functions through unified power, two separated devices can be combined together and controlled at the same time, seamless integration of the dynamic clutch and brake functions is achieved through the ingenious structural design of the device, and the mechanical performance of the device is improved. The device has the advantages of compact structure, high transmission efficiency, quick brake response and the like.

Description

Technical Field

[0001] This invention relates to the field of mechanical transmission technology, and in particular to a dynamic clutch device with braking function. Background Technology

[0002] The clutch is located inside the flywheel housing between the engine and the transmission. The clutch assembly is fixed to the rear surface of the flywheel with screws, and the clutch output shaft is the transmission input shaft. A brake is a device that decelerates, stops, or maintains a stopped state of a moving part (or moving machinery). It is a mechanical part that stops or decelerates moving parts in machinery. Traditionally, clutches and brakes are usually independent components, requiring separate control of power separation and braking. This control method leads to complex structures, response delays, and energy losses.

[0003] While existing technologies incorporate some integrated designs, they mostly employ fixed mechanical linkages, making it difficult to dynamically adjust the synergy between clutch and brake, and thus unable to adapt to complex operating conditions. Therefore, there is an urgent need for a dynamic device capable of simultaneously achieving power separation and braking. Summary of the Invention

[0004] To address the aforementioned deficiencies or shortcomings, the present invention aims to provide a dynamic clutch device with braking function, which achieves seamless integration of clutch and braking functions, thereby making the overall structure of the device compact and the transmission efficiency high.

[0005] To achieve the above objectives, the technical solution of the present invention is as follows: A dynamic clutch device with braking function includes: a power output shaft and a power input shaft mounted on the power output shaft. A slidable clutch mechanism is mounted on the power input shaft, and a slidable braking mechanism is mounted on the power output shaft. The clutch mechanism and the braking mechanism move synchronously in opposite directions. When the clutch mechanism is dynamically engaged, the braking mechanism is released; when the clutch mechanism is disengaged, the braking mechanism brakes.

[0006] A needle roller bearing is provided in the input shaft hole of the power input shaft, and the needle roller bearing is connected to the power output shaft.

[0007] The clutch mechanism includes: a clutch mounted on the power input shaft, a clutch housing mounted on the clutch, the clutch housing being connected to the power output shaft via a spline, and a braking mechanism being movably mounted on the clutch housing.

[0008] The clutch includes: a clutch friction plate and a clutch coupling steel plate installed between the clutch housing and the outer wall of the power input shaft; a clutch piston is installed between one side of the power input shaft and the clutch housing, the clutch piston is movably installed on the power output shaft and contacts the clutch friction plate and the clutch coupling steel plate, and a first power source is provided on the clutch piston for pushing the clutch piston to press or release the clutch coupling steel plate.

[0009] The first power source includes: hydraulic oil disposed between the clutch piston and the clutch housing, and a clutch spring disposed between the clutch piston and the power input shaft.

[0010] The outer wall of the power input shaft is provided with an external spline, and the clutch friction plate is provided with an internal spline. The external spline of the power input shaft is slidably connected to the internal spline of the clutch friction plate. The inner hole of the clutch housing is provided with an internal spline, and the outer side of the clutch coupling steel plate is provided with an external spline. The internal spline of the clutch housing is slidably connected to the external spline of the clutch coupling steel plate, and the clutch friction plate and the clutch coupling steel plate are staggered in the clutch housing hole.

[0011] The braking mechanism includes: a brake movably mounted on the clutch housing, and a brake friction pad installed between the brake and the clutch housing.

[0012] The brake includes a brake piston, which is connected to the clutch housing via a brake pin, and a second power source is provided on the brake piston for driving the brake piston to move.

[0013] The second power source includes: hydraulic oil disposed between the clutch housing and the brake spring mounted on the brake pin, and the brake spring mounted on the brake pin, the end of the brake spring being in contact with the brake piston.

[0014] The power output shaft has a first oil passage along its center along the axial direction, and a second oil passage along the radial direction. The first oil passage is connected to the second oil passage, and the outlet of the second oil passage is located between the clutch piston and the clutch housing. A third oil passage is provided on the clutch housing, and the third oil passage is connected to the second oil passage. When the first oil circuit is filled with oil, the hydraulic oil pushes the clutch piston to the left through the second oil circuit, squeezing the clutch friction plate and the clutch coupling steel plate together. At the same time, the hydraulic oil enters the third oil circuit, pushing the brake piston to the right, so that the brake friction plate and the power output shaft are in a relaxed state. When the first oil circuit is disconnected, the clutch spring pushes the clutch piston to the right, causing the clutch to disengage. At the same time, the brake spring pushes the brake piston to the left, pressing the brake friction plate against the clutch housing, restricting the degree of freedom on the circumference of the clutch housing. The clutch housing and the power output shaft brake the power output shaft through splines.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides a dynamic clutch device with braking function. By synchronizing the clutch and brake through a unified power, the dynamic clutch and braking functions can be combined and controlled simultaneously. Through ingenious structural design, this device achieves seamless integration of dynamic clutch and braking functions, and has the advantages of compact structure, high transmission efficiency, and rapid braking response. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the dynamic clutch device with braking function of the present invention; Figure 2 This is the working state of the dynamic clutch device with braking function of the present invention. Figure 1 ; Figure 3 This is the working state of the dynamic clutch device with braking function of the present invention. Figure 2 .

[0018] In the diagram, 1. Clutch shaft retaining ring; 2. Needle roller bearing; 3. Power output shaft; 4. Power input shaft; 5. Clutch spacer; 6. Clutch spring; 7. Clutch bore retaining ring; 8. Clutch friction plate; 9. Clutch coupling steel plate; 10. Clutch housing; 11. Clutch seal; 12. Clutch piston; 13. Brake friction plate; 14. Brake retaining ring; 15. Brake pin; 16. Brake spring; 17. Brake seal; 18. Brake piston; 19. First oil passage; 20. Second oil passage; 21. Third oil passage; a. Oil inlet; b. Oil outlet. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the protection scope of the present invention.

[0021] like Figure 1As shown, a dynamic clutch device with braking function includes: a power output shaft 3 and a power input shaft 4 mounted on the power output shaft 3. A slidable clutch mechanism is mounted on the power input shaft 4, and a slidable braking mechanism is mounted on the power output shaft 3. The clutch mechanism and the braking mechanism move synchronously in opposite directions. When the clutch mechanism is dynamically engaged, the braking mechanism is released; when the clutch mechanism is disengaged, the braking mechanism engages. A needle roller bearing 2 is provided in the input shaft hole of the power input shaft 4, and the needle roller bearing 2 is connected to the power output shaft 3.

[0022] Specifically, the clutch mechanism includes: a clutch mounted on the power input shaft 4, a clutch housing 10 mounted on the clutch, the clutch housing 10 being connected to the power output shaft 3 via a spline, and a braking mechanism movably mounted on the clutch housing 10 to transmit power from the clutch housing 10 to the power output shaft 3.

[0023] For example, the clutch includes: a clutch friction plate 8 and a clutch coupling steel plate 9 installed between the clutch housing 10 and the outer wall of the power input shaft 4; a clutch piston 12 is installed between one side of the power input shaft 4 and the clutch housing 10, the clutch piston 12 is movably installed on the power output shaft 3 and contacts the clutch friction plate 8 and the clutch coupling steel plate 9, and the clutch piston 12 is provided with a first power source for pushing the clutch piston 12 to press or release the clutch coupling steel plate 9. The first power source includes: hydraulic oil disposed between the clutch piston 12 and the clutch housing 10 and a clutch spring 6 between the clutch piston 12 and the power input shaft 4. The power input shaft 4 is provided with a clutch shaft retainer 1 and a clutch spacer 5, the clutch shaft retainer 1 restricting the axial position of the clutch spacer 5. A clutch spring 6 is provided between the clutch spacer 5 and the clutch piston 12, and the clutch spring 6 has a certain preload. A clutch seal 11 is provided between the clutch piston 12 and the clutch housing 10 for sealing. The clutch seal 11 is located inside the clutch housing 10 and the inner hole of the clutch piston 12, and is used to form a closed oil chamber between the power input shaft 4, the clutch housing 10, and the clutch piston 12.

[0024] In this invention, the outer wall of the power input shaft 4 is provided with an external spline, and the clutch friction plate 8 is provided with an internal spline. The external spline of the power input shaft is slidably connected to the internal spline of the clutch friction plate. The inner hole of the clutch housing 10 is provided with an internal spline, and the outer side of the clutch coupling steel plate 9 is provided with an external spline. The internal spline of the clutch housing is slidably connected to the external spline of the clutch coupling steel plate, and the clutch friction plate 8 and the clutch coupling steel plate 9 are staggered in the clutch housing hole.

[0025] Preferably, in order to limit the position of the clutch friction plate 8 and the clutch coupling steel plate 9, a clutch hole retaining ring 7 is installed in the groove at the left end of the inner hole of the clutch housing 10 to limit the axial position of the left end of the clutch friction plate 8 and the clutch steel plate 9. The clutch piston 12 is located at the right end of the inner hole of the clutch housing 10, pushing the clutch coupling steel plate 9 to press the clutch coupling steel plate 9 against the clutch friction plate 8.

[0026] Additionally, the braking mechanism includes a brake movably mounted on the clutch housing 10, with a brake friction pad 13 installed between the brake and the clutch housing 10. The brake friction pad 13 has a protruding block on its outer edge, which is engaged with a fixed base, restricting the circumferential movement of the brake friction pad 13, while allowing axial movement. A brake seal 17 is provided between the clutch housing 10 and the brake piston 18, forming a closed oil chamber between them.

[0027] The brake includes a brake piston 18, which is connected to the clutch housing 10 via a brake pin 15. A second power source is provided on the brake piston 18 to drive its movement. The second power source includes hydraulic oil disposed between the clutch housing 10 and a brake spring 16 mounted on the brake pin 15, and the brake spring 16 mounted on the brake pin 15, the end of which contacts the brake piston 18.

[0028] More preferably, the power output shaft 3 has a first oil passage 19 axially formed at its center, and a second oil passage 20 radially formed therefrom. The first oil passage 19 and the second oil passage 20 are connected, and the outlet of the second oil passage 20 is located between the clutch piston 12 and the clutch housing 10. The clutch housing 10 has a third oil passage 21 connected to the second oil passage 20. The power input shaft 3 has an oil inlet a at its center, through which hydraulic oil enters the closed oil chamber formed by the clutch housing 10, the clutch piston 12, and the input shaft 4, to push the clutch piston 12. The right end of the clutch housing 10 has a small hole, through which hydraulic oil is introduced into the closed oil chamber formed between the clutch housing 10 and the brake piston 18.

[0029] When the first oil passage 19 is filled with oil, the hydraulic oil pushes the clutch piston 12 to the left through the second oil passage 20, squeezing the clutch friction plate 8 and the clutch coupling steel plate 9 together. At the same time, the hydraulic oil enters the third oil passage 21, pushing the brake piston 18 to the right, so that the brake friction plate 13 is in a relaxed state and the power output shaft 3 is in a relaxed state. When the first oil passage 19 is disconnected, the clutch spring 6 pushes the clutch piston 12 to the right, causing the clutch to disengage. At the same time, the brake spring 16 pushes the brake piston 18 to the left, pressing the brake friction plate 13 against the clutch housing 10, restricting the degree of freedom on the circumference of the clutch housing 10. The clutch housing 10 and the power output shaft 3 brake the power output shaft 3 through splines.

[0030] It should be noted that the hydraulic oil used in the dynamic clutch device with braking function comes from an external supply or the machine itself, and the pressure is usually 1.0~1.5MPa.

[0031] The working process of this invention is as follows: like Figure 2 As shown, the clutch is engaged: The power output shaft 3 has an oil inlet a at its center. When oil is supplied through the oil inlet a, it pushes the clutch piston 12 to the left, pressing the clutch friction plate 8 and the clutch coupling steel plate 9 together. At this time, the clutch spring 6 is compressed, giving the clutch spring 6 elastic potential energy, thus realizing the dynamic engagement of the clutch.

[0032] Brake release: The clutch housing 10 is provided with an oil outlet b. When oil is supplied through the center oil inlet a of the power output shaft 3, the hydraulic oil in the clutch oil chamber pushes the clutch piston 12 to achieve dynamic clutch engagement. At the same time, a portion of the oil enters the brake oil chamber through the small hole on the clutch housing 10, pushing the brake piston 18 to move to the right and compressing the brake spring 16, so that the brake spring 16 has elastic potential energy. At this time, the brake friction plate 13 is in a relaxed state and the power output shaft 3 is in a relaxed state, thus realizing the release of the brake.

[0033] like Figure 3 As shown, the clutch is disengaged: When the oil circuit at the center oil inlet a of the power output shaft 3 is disconnected, the pressure in the clutch oil chamber decreases instantaneously due to the lack of continuous pressure supply. The clutch spring 6 pushes the clutch piston 12 to move to the right, thereby disengaging the clutch.

[0034] Brake braking: When the oil passage at the center oil inlet a of the power output shaft 3 is disconnected, the pressure in the clutch oil chamber decreases instantaneously, and the brake spring 16 pushes the brake piston 18 to move to the left, pressing the brake friction plate 13 against the clutch housing 10. The brake friction plate 13 and the body have a limit in the circumferential direction, which restricts the degree of freedom of the clutch housing 10 on the circumference. Since the clutch housing 10 and the power output shaft 3 are connected by a spline, the braking function is realized.

[0035] It will be apparent to those skilled in the art that the above specific examples are merely preferred embodiments of the present invention. Therefore, any improvements or modifications that may be made by those skilled in the art to certain parts of the present invention still embody the principles of the present invention and achieve the objectives of the present invention, and all fall within the scope of protection of the present invention.

Claims

1. A dynamic clutch device with braking function, characterized in that, include: The power output shaft (3) and the power input shaft (4) mounted on the power output shaft (3) are provided. A slidable clutch mechanism is mounted on the power input shaft (4), and a slidable braking mechanism is mounted on the power output shaft (3). The clutch mechanism and the braking mechanism move synchronously in opposite directions. When the clutch mechanism is dynamically engaged, the braking mechanism is released. When the clutch mechanism is disengaged, the braking mechanism brakes.

2. The dynamic clutch device with braking function according to claim 1, characterized in that, The input shaft hole of the power input shaft (4) is provided with a needle roller bearing (2), and the needle roller bearing (2) is connected to the power output shaft (3).

3. The dynamic clutch device with braking function according to claim 1 or 2, characterized in that, The clutch mechanism includes: a clutch mounted on the power input shaft (4), a clutch housing (10) mounted on the clutch, the clutch housing (10) being connected to the power output shaft (3) via a spline, and a braking mechanism being movably mounted on the clutch housing (10).

4. The dynamic clutch device with braking function according to claim 3, characterized in that, The clutch includes: a clutch friction plate (8) and a clutch coupling steel plate (9) installed between the clutch housing (10) and the outer wall of the power input shaft (4); a clutch piston (12) is installed between one side of the power input shaft (4) and the clutch housing (10), the clutch piston (12) is movably installed on the power output shaft (3) and in contact with the clutch friction plate (8) and the clutch coupling steel plate (9), and a first power source is provided on the clutch piston (12) for pushing the clutch piston (12) to press or release the clutch coupling steel plate (9).

5. The dynamic clutch device with braking function according to claim 4, characterized in that, The first power source includes: hydraulic oil disposed between the clutch piston (12) and the clutch housing (10) and a clutch spring (6) between the clutch piston (12) and the power input shaft (4).

6. The dynamic clutch device with braking function according to claim 4, characterized in that, The outer wall of the power input shaft (4) is provided with an external spline, the clutch friction plate (8) is provided with an internal spline, and the external spline of the power input shaft is slidably connected to the internal spline of the clutch friction plate; the inner hole of the clutch housing (10) is provided with an internal spline, the outer side of the clutch coupling steel plate (9) is provided with an external spline, the internal spline of the clutch housing is slidably connected to the external spline of the clutch coupling steel plate, and the clutch friction plate (8) and the clutch coupling steel plate (9) are staggered in the clutch housing hole.

7. The dynamic clutch device with braking function according to claim 1, characterized in that, The braking mechanism includes a brake movably mounted on the clutch housing (10), and a brake friction pad (13) is installed between the brake and the clutch housing (10).

8. The dynamic clutch device with braking function according to claim 7, characterized in that, The brake includes a brake piston (18), which is connected to the clutch housing (10) via a brake pin (15). The brake piston (18) is provided with a second power source for pushing the brake piston (18) to move.

9. The dynamic clutch device with braking function according to claim 8, characterized in that, The second power source includes: hydraulic oil disposed between the clutch housing (10) and the brake spring (16) mounted on the brake pin (15) of the brake piston (18), and the brake spring (16) mounted on the brake pin (15), the end of the brake spring (16) being in contact with the brake piston (18).

10. The dynamic clutch device with braking function according to claim 9, characterized in that, The power output shaft (3) has a first oil passage (19) axially formed at its center, and a second oil passage (20) radially formed thereon. The first oil passage (19) is connected to the second oil passage (20), and the outlet of the second oil passage (20) is located between the clutch piston (12) and the clutch housing (10). A third oil passage (21) is formed on the clutch housing (10), and the third oil passage (21) is connected to the second oil passage (20). When the first oil passage (19) is filled with oil, the hydraulic oil pushes the clutch piston (12) to the left through the second oil passage (20), squeezing the clutch friction plate (8) and the clutch coupling steel plate (9) together. At the same time, the hydraulic oil enters the third oil passage (21), pushing the brake piston (18) to the right, so that the brake friction plate (13) is in a relaxed state and the power output shaft (3) is in a relaxed state. When the first oil passage (19) is disconnected, the clutch spring (6) pushes the clutch piston (12) to the right, causing the clutch to disengage. At the same time, the brake spring (16) pushes the brake piston (18) to the left, pressing the brake friction plate (13) against the clutch housing (10), restricting the degree of freedom on the circumference of the clutch housing (10). The clutch housing (10) and the power output shaft (3) brake the power output shaft (3) through splines.

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