Reversing clutch assembly

Abstract

The utility model discloses a kind of reversing clutch assembly, including reversing clutch shaft, double-cavity clutch housing and single-cavity clutch housing are installed on reversing clutch shaft, there are front working cavity and rear working cavity in double-cavity clutch housing interior, the opening end in front working cavity is equipped with reverse disc hub gear, the opening end in rear working cavity is equipped with high-speed forward disc hub gear, single-cavity clutch housing is equipped with working cavity in the side away from double-cavity clutch housing, the opening end in working cavity is equipped with low-speed forward disc hub gear, the main body of reverse disc hub gear, high-speed forward disc hub gear and low-speed forward disc hub gear is all engaged with multiple driving pieces, double-cavity clutch housing and single-cavity clutch housing are clamped with driven piece corresponding to driving piece.The utility model can greatly avoid that driving piece, driven piece produce adhesion, make reversing clutch reach ideal reset effect, ensure that clutch separates thoroughly.

Description

Technical Field

[0001] This utility model relates to a reversing clutch assembly, belonging to the field of mechanical transmission technology. Background Technology

[0002] The reversing clutch assembly in a tractor chassis is the core component of the power reversing gearbox. It allows the driver to seamlessly switch between forward and reverse gears via a lever without disengaging the main clutch. This assembly is highly sophisticated and integrated, typically employing a wet, multi-plate, or hydraulically controlled design.

[0003] Currently, the hydraulic oil in the reversing clutch of a tractor chassis will generate an oil film when it is in operation. This oil film will cause the driving plate and the driven plate to stick together, which is especially common in wet multi-plate clutch structures. This will prevent the reversing clutch from achieving the ideal return effect and result in incomplete clutch disengagement.

[0004] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0005] This utility model addresses the shortcomings of the prior art by providing a reversing clutch assembly that can greatly prevent the driving and driven plates from sticking together, enabling the reversing clutch to achieve an ideal return effect and ensuring complete clutch disengagement.

[0006] To solve the above technical problems, the present invention adopts the following technical solution:

[0007] The reversing clutch assembly includes a reversing clutch shaft. A dual-chamber clutch housing and a single-chamber clutch housing are sequentially mounted on the reversing clutch shaft in the power transmission direction. The dual-chamber clutch housing has a symmetrically arranged front working chamber and a rear working chamber. A reverse gear is located in the opening of the front working chamber, and a high-speed forward gear is located in the opening of the rear working chamber. A working chamber is located on the side of the single-chamber clutch housing away from the dual-chamber clutch housing, and a low-speed forward gear is located in the opening of the working chamber. Multiple driving plates are meshed on the main bodies of the reverse gear, the high-speed forward gear, and the low-speed forward gear. Driven plates corresponding to the driving plates are engaged on the dual-chamber clutch housing and the single-chamber clutch housing.

[0008] Furthermore, a disc spring is installed between adjacent driven plates.

[0009] Furthermore, multiple rubber heads are evenly distributed near the periphery of the driven plate, with the rubber heads on adjacent driven plates arranged in an alternating pattern.

[0010] Furthermore, the dual-chamber clutch housing is fixedly connected to the reversing clutch shaft; the single-chamber clutch housing is splinedly connected to the reversing clutch shaft via the power take-off drive gear.

[0011] Furthermore, a piston is slidably installed in the front working chamber, and a return spring is installed between the piston and the reverse gear. The reverse gear is rotatably mounted on the reversing clutch shaft, and the end of the return spring near the reverse gear abuts against the spring cover of the ring structure.

[0012] Furthermore, a piston is slidably installed in the rear working chamber, and a return spring is installed between the piston and the high-speed forward gear hub. The high-speed forward gear hub is rotatably mounted on the reversing clutch shaft, and the end of the return spring near the high-speed forward gear hub abuts against the spring cover of the ring structure.

[0013] Furthermore, a piston is slidably installed in the working chamber of the single-chamber clutch housing, and a return spring is installed between the piston and the low-speed forward gear hub. The low-speed forward gear hub is rotatably mounted on the reversing clutch shaft, and the end of the return spring near the low-speed forward gear hub abuts against the spring cover of the ring structure.

[0014] Furthermore, the driving plate is located within the working chambers of the dual-chamber clutch housing and the single-chamber clutch housing.

[0015] Furthermore, pressure plates are installed inside the outer ends of the working chambers of both the dual-chamber clutch housing and the single-chamber clutch housing.

[0016] Furthermore, the reversing clutch shaft is provided with an oil passage hole inside.

[0017] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages:

[0018] Hydraulic oil enters the working chamber inside the clutch housing through the oil passage hole on the reversing clutch shaft. The hydraulic oil pushes the piston to work, and the piston will squeeze the return spring to make the driving plate and driven plate reciprocate. This allows the power of the reversing clutch shaft to be transmitted to the reverse gear, high-speed forward gear, or low-speed forward gear, thus realizing the reversing function and the high-low speed switching function.

[0019] This invention, by installing disc springs between adjacent driven plates or by installing multiple rubber heads on the driven plates, greatly avoids the adhesion between the driving and driven plates, ensuring good return of the driving and driven plates and complete clutch disengagement.

[0020] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0021] Figure 1This is a structural schematic diagram of Example 1;

[0022] Figure 2 This is a schematic diagram of the installation of the rubber head in Example 1;

[0023] Figure 3 This is a structural schematic diagram of Example 2;

[0024] Figure 4 yes Figure 3 A magnified view of point M in the middle.

[0025] In the diagram, 1-reversing clutch shaft, 2-reverse gear disc hub gear, 3-pressure plate, 4-driven plate, 5-driving plate, 6-disc spring, 7-high-speed forward gear disc hub gear, 8-piston, 9-low-speed forward gear disc hub gear, 10-spring cover, 11-reset spring, 12-dual-chamber clutch housing, 13-single-chamber clutch housing, 14-power take-off port drive gear, 15-rubber head. Detailed Implementation

[0026] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0027] Example 1

[0028] like Figure 1 and Figure 2 As shown in the figure, this utility model provides a reversing clutch assembly, including a reversing clutch shaft 1. The reversing clutch shaft 1 has an oil passage hole inside. A dual-chamber clutch housing 12 and a single-chamber clutch housing 13 are installed sequentially on the reversing clutch shaft 1 in the power transmission direction. The dual-chamber clutch housing 12 is fixedly connected to the reversing clutch shaft 1. The single-chamber clutch housing 13 is splinedly connected to the reversing clutch shaft 1 through a power take-off drive gear 14.

[0029] The dual-chamber clutch housing 12 has a symmetrically arranged front working chamber and a rear working chamber. The opening end of the front working chamber is provided with a reverse gear disc hub gear 2, and the opening end of the rear working chamber is provided with a high-speed forward gear disc hub gear 7.

[0030] A piston 8 is slidably installed in the front working chamber. A return spring 11 is installed between the piston 8 and the reverse gear 2. The reverse gear 2 is rotatably installed on the reversing clutch shaft 1. The end of the return spring 11 near the reverse gear 2 abuts against the spring cover 10 of the ring structure. The spring cover 10 is fixed to the reversing clutch shaft 1 and cooperates with the return spring 11 to realize the return of the piston 8.

[0031] A piston 8 is slidably installed in the rear working chamber. A return spring 11 is installed between the piston 8 and the high-speed forward gear 7. The high-speed forward gear 7 is rotatably installed on the reversing clutch shaft 1. The end of the return spring 11 near the high-speed forward gear 7 abuts against the spring cover 10 of the ring structure.

[0032] The single-chamber clutch housing 13 has a working chamber on the side away from the double-chamber clutch housing 12, and a low-speed forward gear 9 is provided in the opening end of the working chamber.

[0033] A piston 8 is slidably installed in the working chamber of the single-chamber clutch housing 13. A return spring 11 is installed between the piston 8 and the low-speed forward gear 9. The low-speed forward gear 9 is rotatably installed on the reversing clutch shaft 1. The end of the return spring 11 near the low-speed forward gear 9 abuts against the spring cover 10 of the ring structure.

[0034] Multiple driving plates 5 are meshed on the main bodies of the reverse gear disc hub gear 2, the high-speed forward gear disc hub gear 7, and the low-speed forward gear disc hub gear 9. The driving plates 5 are located in the working chambers of the dual-chamber clutch housing 12 and the single-chamber clutch housing 13. The dual-chamber clutch housing 12 and the single-chamber clutch housing 13 are meshed with driven plates 4 corresponding to the driving plates 5. Multiple rubber heads 15 are evenly distributed on the driven plates 4 near their outer periphery. The rubber heads 15 on adjacent driven plates 4 are staggered. The rubber heads 15 are used for the return of the driving plates 5 and the driven plates 4.

[0035] Pressure plates 3 are installed in the outer ends of the working chambers of both the dual-chamber clutch housing 12 and the single-chamber clutch housing 13. The pressure plates 3 limit the reciprocating motion of the driving plate 5 and the driven plate 4.

[0036] The active plate 5 has friction material on both sides.

[0037] Example 2

[0038] like Figure 3 and Figure 4 As shown in the figure, this utility model provides a reversing clutch assembly. The difference between Embodiment 2 and Embodiment 1 is that:

[0039] In Example 2, the driven plate 4 is not equipped with a rubber head 15. A disc spring 6 is installed between adjacent driven plates 4. The disc spring 6 is used to replace the rubber head 15 for the return of the driving plate 5 and the driven plate 4.

[0040] Practical demonstration shows that the disc spring 6 provides a better return effect for the driving plate and driven plate 4 than the rubber head 15.

[0041] The specific working principle of this utility model is as follows:

[0042] Hydraulic oil enters the working chamber inside the clutch housing through the oil passage hole on the reversing clutch shaft. The hydraulic oil pushes the piston to work, and the piston will squeeze the return spring to make the driving plate and driven plate reciprocate (the return spring is squeezed by the spring cover and the piston). Thus, the power of the reversing clutch shaft is transmitted to the reverse gear, high-speed forward gear, or low-speed forward gear, realizing the reversing function and the high-low speed switching function.

[0043] This invention, by installing disc springs between adjacent driven plates or by installing multiple rubber heads on the driven plates, greatly avoids adhesion between the driving and driven plates, thus enabling the driving and driven plates to have a good return effect.

[0044] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. A reversing clutch assembly, characterized in that: The reversing clutch shaft (1) is provided with a dual-chamber clutch housing (12) and a single-chamber clutch housing (13) installed in sequence in the power transmission direction. The dual-chamber clutch housing (12) has a symmetrically arranged front working chamber and a rear working chamber. The opening end of the front working chamber is provided with a reverse gear disc hub gear (2), and the opening end of the rear working chamber is provided with a high-speed forward gear disc hub gear (7). The single-chamber clutch housing (13) has a working chamber on the side away from the dual-chamber clutch housing (12), and the opening end of the working chamber is provided with a low-speed forward gear disc hub gear (9). Multiple driving plates (5) are meshed on the main body of the reverse gear disc hub gear (2), the high-speed forward gear disc hub gear (7) and the low-speed forward gear disc hub gear (9). The dual-chamber clutch housing (12) and the single-chamber clutch housing (13) are fitted with driven plates (4) corresponding to the driving plates (5).

2. The reversing clutch assembly as described in claim 1, characterized in that: A disc spring (6) is installed between adjacent driven plates (4).

3. The reversing clutch assembly as described in claim 1, characterized in that: Multiple rubber heads (15) are evenly distributed on the peripheral side of the driven piece (4), and the rubber heads (15) on adjacent driven pieces (4) are staggered.

4. The reversing clutch assembly as described in claim 1, characterized in that: The dual-chamber clutch housing (12) is fixedly connected to the reversing clutch shaft (1); the single-chamber clutch housing (13) is splinedly connected to the reversing clutch shaft (1) through the power take-off drive gear (14).

5. The reversing clutch assembly as described in claim 1, characterized in that: A piston (8) is slidably installed in the front working chamber. A return spring (11) is installed between the piston (8) and the reverse gear (2). The reverse gear (2) is rotatably installed on the reversing clutch shaft (1). The end of the return spring (11) near the reverse gear (2) abuts against the spring cover (10) of the ring structure.

6. The reversing clutch assembly as described in claim 1, characterized in that: A piston (8) is slidably installed in the rear working chamber. A return spring (11) is installed between the piston (8) and the high-speed forward gear (7). The high-speed forward gear (7) is rotatably installed on the reversing clutch shaft (1). The end of the return spring (11) near the high-speed forward gear (7) abuts against the spring cover (10) of the ring structure.

7. The reversing clutch assembly as described in claim 1, characterized in that: A piston (8) is slidably installed in the working chamber of the single-chamber clutch housing (13). A return spring (11) is installed between the piston (8) and the low-speed forward gear disc (9). The low-speed forward gear disc (9) is rotatably installed on the reversing clutch shaft (1). The end of the return spring (11) near the low-speed forward gear disc (9) abuts against the spring cover (10) of the ring structure.

8. The reversing clutch assembly as described in claim 1, characterized in that: The active plate (5) is located in the working chamber of the dual-chamber clutch housing (12) and the single-chamber clutch housing (13).

9. The reversing clutch assembly as described in claim 1, characterized in that: Pressure plates (3) are installed inside the outer ends of the working chambers of both the dual-chamber clutch housing (12) and the single-chamber clutch housing (13).

10. The reversing clutch assembly as described in claim 1, characterized in that: The reversing clutch shaft (1) has an oil passage hole inside.

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