Rear power output device of gearbox

Abstract

The utility model discloses a gearbox rear power output device which comprises a rear power box cover, the rear power box cover is fixedly connected to the end portion of a gearbox body in the length direction, a rear power end cover is installed on the side portion, away from a gearbox, of the rear power box cover, and a clutch installation space is formed between the rear power end cover and the rear power box cover. A power output clutch shaft and a driven gear shaft which are arranged in parallel are installed in the rear power box cover, one end of the power output clutch shaft is located in the gearbox body, and the other end of the power output clutch shaft penetrates through the rear power box cover and then is installed in the rear power end cover in a rotating mode. The power output clutch shaft is sequentially sleeved with a power output driving gear shaft, a power output clutch shell and a power output connecting sleeve. According to the rear power output device, the clutch is hydraulically controlled to be combined and separated, rear power is output and cut off, the installation position of the clutch is reasonable, and maintenance or component replacement of the clutch is facilitated.

Description

Technical Field

[0001] The utility model relates to a rear power output device of a gearbox, belonging to the technical field of gearboxes. Background Art

[0002] Tractors need to be matched with different functional modules to complete different operations. These functional modules need power drive. If the gearbox has an additional output shaft for driving certain functional modules, the application range of the gearbox can be expanded.

[0003] Patent No. CN201951245U discloses a rear power output device of a tractor, including a power output driving shaft, a power output driven shaft and a wet clutch. A high-speed driving gear and a low-speed driving gear are respectively arranged on the power output driving shaft. High-speed driven gears and low-speed driven gears meshing and driving with the high-speed driving gear and the low-speed driving gear on the power output driving shaft are respectively arranged on the power output driven shaft. A meshing sleeve is arranged between the two driven gears on the power output driven shaft.

[0004] The clutch in the above-mentioned disclosed rear power output device is installed inside the gearbox. The clutch is a vulnerable part, and the clutch friction plate needs to be replaced regularly. However, since the friction plate is located inside the gearbox, it is not convenient to replace it.

[0005] In summary, it is obvious that the prior art has inconveniences and defects in actual use, so it is necessary to improve. Content of the Utility Model

[0006] In view of the deficiencies in the background art, the utility model provides a rear power output device of a gearbox, which realizes the output and cut-off of the rear power by hydraulically controlling the engagement and separation of the clutch. The installation position of the clutch is reasonable, which is convenient for its maintenance or component replacement.

[0007] To solve the above technical problems, the utility model adopts the following technical solutions:

[0008] The rear power output device of the gearbox includes a rear power box cover fixedly connected to the end of the gearbox body along the length direction. A rear power end cover is installed on the side of the rear power box cover away from the gearbox. A clutch installation space is arranged between the rear power end cover and the rear power box cover. A power output clutch shaft and a driven gear shaft arranged in parallel are installed inside the rear power box cover. One end of the power output clutch shaft is located inside the gearbox, and the other end of the power output clutch shaft passes through the rear power box cover and is rotatably installed inside the rear power end cover. A power output driving gear shaft, a power output clutch housing and a power output connecting sleeve are sequentially sleeved on the power output clutch shaft.

[0009] Further, the driven gear shaft is coaxially arranged with the power output shaft and rotates synchronously.

[0010] Further, the power output driving gear shaft and the power output clutch housing are rotatably mounted on the main body of the power output clutch shaft, and the facing ends of the power output driving gear shaft and the power output clutch housing are meshed and connected.

[0011] Further, the power output connecting sleeve is meshed and connected with the power output clutch shaft.

[0012] Further, the power output clutch housing and the power output connecting sleeve are rotatably mounted in the installation space between the rear power box cover and the rear power end cover.

[0013] Further, a piston is arranged inside the power output clutch housing, and a piston return spring is arranged on the side of the piston.

[0014] Further, clutch driven plates and clutch driving plates are arranged at intervals outside the power output connecting sleeve. The inner ring of the clutch driving plate is meshed and connected with the power output connecting sleeve, and the outer ring of the clutch driven plate is clamped with the power output clutch housing.

[0015] Further, a power output high-speed driving gear and a power output low-speed driving gear are arranged on the power output driving gear shaft, and the power output high-speed driving gear and the power output low-speed driving gear are of an integral structure with the power output driving gear shaft.

[0016] Further, a power output high-speed driven gear and a power output low-speed driven gear are mounted on the driven gear shaft. The power output high-speed driven gear is meshed and driven with the power output high-speed driving gear, the power output low-speed driven gear is meshed and driven with the power output low-speed driving gear, and a meshing sleeve is arranged between the power output high-speed driven gear and the power output low-speed driven gear.

[0017] After the present utility model adopts the above technical solutions, compared with the prior art, it has the following advantages:

[0018] Power is transmitted from the power output clutch shaft to the power output driving gear shaft through the clutch, and then sequentially transmitted to the driven gear shaft and the power output shaft to realize the output of the rear power; the combination and separation of the clutch are controlled hydraulically to realize the output and cut-off of the rear power;

[0019] The clutch in the present utility model is arranged in the installation space between the rear power end cover and the rear power box cover. When the clutch needs maintenance or component replacement, only the rear power end cover needs to be removed, which is very convenient.

[0020] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0021] Figure 1 is a schematic structural view of the present utility model;

[0022] Figure 2 is Figure 1 a partially enlarged view of the structure in

[0023] In the figure, 1 - power output driving gear shaft, 2 - power output high-speed driven gear, 3 - power output low-speed driven gear, 4 - driven gear shaft, 5 - power output shaft, 6 - power output clutch housing, 7 - rear power box cover, 8 - rear power end cover, 9 - power output clutch shaft, 10 - power output connecting sleeve, 11 - piston return spring, 12 - clutch driven plate, 13 - clutch driving plate, 14 - piston. Specific embodiments

[0024] For a clearer understanding of the technical features, objectives, and effects of the present utility model, the specific embodiments of the present utility model will now be described with reference to the accompanying drawings.

[0025] As Figure 1 and Figure 2 collectively shown, the present utility model provides a rear power output device for a gearbox, including a rear power box cover 7, which is fixedly connected to the end of the gearbox body along the length direction. A rear power end cover 8 is installed on the side of the rear power box cover 7 away from the gearbox, and a clutch installation space is provided between the rear power end cover 8 and the rear power box cover 7.

[0026] Inside the rear power box cover 7, a power output clutch shaft 9 and a driven gear shaft 4 are installed in parallel. One end of the power output clutch shaft 9 is located inside the gearbox body, and the other end of the power output clutch shaft 9 passes through the rear power box cover 7 and is rotatably installed inside the rear power end cover 8; the driven gear shaft 4 is coaxially arranged with the power output shaft 5 and rotates synchronously.

[0027] The power output clutch shaft 9 is sequentially sleeved with a power output driving gear shaft 1, a power output clutch housing 6, and a power output connecting sleeve 10.

[0028] The power output driving gear shaft 1 and the power output clutch housing 6 are rotatably installed on the main body of the power output clutch shaft 9, and the facing ends of the power output driving gear shaft 1 and the power output clutch housing 6 are meshed and connected; the power output connecting sleeve 10 is meshed and connected with the power output clutch shaft 9.

[0029] The power output clutch housing 6 and the power output connecting sleeve 10 are rotatably installed in the installation space between the rear power box cover 7 and the rear power end cover 8.

[0030] Inside the power output clutch housing 6, there is a piston 14, and a piston return spring 11 is provided on the side of the piston 14.

[0031] Outside the power output connection sleeve 10, there are a clutch driven plate 12 and a clutch driving plate 13 arranged at intervals. The clutch driving plate 13 is a friction plate. The inner ring of the clutch driving plate 13 is meshed and connected with the power output connection sleeve 10, and the outer ring of the clutch driven plate 12 is clamped with the power output clutch housing 6.

[0032] On the power output driving gear shaft 1, there are a power output high-speed driving gear and a power output low-speed driving gear. The power output high-speed driving gear and the power output low-speed driving gear are integrally structured with the power output driving gear shaft 1.

[0033] On the driven gear shaft 4, a power output high-speed driven gear 2 and a power output low-speed driven gear 3 are installed. The power output high-speed driven gear 2 is in meshing transmission with the power output high-speed driving gear, and the power output low-speed driven gear 3 is in meshing transmission with the power output low-speed driving gear. Between the power output high-speed driven gear 2 and the power output low-speed driven gear 3, there is a meshing sleeve, which is connected with a shift fork. The shift fork drives it to slide left and right to realize gear shifting.

[0034] The specific working principle of the present utility model:

[0035] Power is transmitted from the power output clutch shaft 9 to the power output driving gear shaft 1 through the clutch, and then sequentially transmitted to the driven gear shaft 4 and the power output shaft 5 to realize the output of the rear power. Whether the power is output or not is completely controlled by the clutch.

[0036] When hydraulic oil enters the piston cavity in the power output clutch housing 6, overcoming the return force of the piston return spring 11, it pushes the piston 14 to press the paired clutch driving plates 13 and clutch driven plates 12 tightly, realizing the engagement of the clutch, so as to transmit the power from the power output clutch shaft 9 to the power output driving gear shaft 1. On the contrary, when the clutch is disengaged, the power will not be transmitted from the power output clutch shaft 9 to the power output driving gear shaft 1.

[0037] The above is an example of the best implementation mode of the present utility model. The parts not described in detail are all common general knowledge of those of ordinary skill in the art. The protection scope of the present utility model shall be subject to the content of the claims. Any equivalent transformation based on the technical inspiration of the present utility model is also within the protection scope of the present utility model.

Claims

1. The power output device behind the gearbox is characterized by: The rear power box cover (7) is fixedly connected to the end of the gearbox body along the length direction, a rear power end cover (8) is installed on the side of the rear power box cover (7) away from the gearbox, and a clutch installation space is provided between the rear power end cover (8) and the rear power box cover (7); A power output clutch shaft (9) and a driven gear shaft (4) arranged in parallel are installed inside the rear power box cover (7); one end of the power output clutch shaft (9) is located in the gearbox body, and the other end of the power output clutch shaft (9) passes through the rear power box cover (7) and is rotatably installed in the rear power end cover (8); The power output clutch shaft (9) is sleeved with a power output driving gear shaft (1), a power output clutch housing (6) and a power output connecting sleeve (10) in sequence.

2. The transmission rear power output device according to claim 1, characterized in that: The driven gear shaft (4) and the power output shaft (5) are coaxially arranged and rotate synchronously.

3. The transmission rear power output device according to claim 1, characterized in that: The power output driving gear shaft (1) and the power output clutch housing (6) are rotatably mounted on the main body of the power output clutch shaft (9), and the facing ends of the power output driving gear shaft (1) and the power output clutch housing (6) are meshed and connected.

4. The transmission rear power output device according to claim 1, characterized in that: The power output connecting sleeve (10) is meshingly connected to the power output clutch shaft (9).

5. The transmission rear power output device according to claim 1, characterized in that: The power output clutch housing (6) and the power output connecting sleeve (10) are rotatably mounted in the installation space between the rear power box cover (7) and the rear power end cover (8).

6. The transmission rear power output device according to claim 1, characterized in that: A piston (14) is provided inside the power output clutch housing (6), and a piston return spring (11) is provided on the side of the piston (14).

7. The transmission rear power output device according to claim 1, characterized in that: The power output connection sleeve (10) has a clutch driven plate (12) and a clutch active plate (13) arranged at intervals on the outside, the inner ring of the clutch active plate (13) is meshedly connected to the power output connection sleeve (10), and the outer ring of the clutch driven plate (12) is clamped to the power output clutch housing (6).

8. The transmission rear power output device according to claim 1, characterized in that: The power output driving gear shaft (1) is provided with a power output high-speed driving gear and a power output low-speed driving gear, and the power output high-speed driving gear and the power output low-speed driving gear are integrated with the power output driving gear shaft (1).

9. The transmission rear power output device according to claim 8, characterized in that: The driven gear shaft (4) is provided with a power output high-speed driven gear (2) and a power output low-speed driven gear (3); the power output high-speed driven gear (2) is meshed with the power output high-speed driving gear for transmission; the power output low-speed driven gear (3) is meshed with the power output low-speed driving gear for transmission; and a meshing sleeve is provided between the power output high-speed driven gear (2) and the power output low-speed driven gear (3).

Images