Power output clutch structure of corn crop harvester

Abstract

A power output clutch structure of a corn crop harvester relates to the technical field of clutch structures and comprises a belt pulley, a power output shaft is rotatably sleeved in the belt pulley, one end of the power output shaft is fixedly connected with a clutch hub, a friction plate set is arranged on the clutch hub, and one side of the friction plate set abuts against the end face of the belt pulley in a friction mode. A clutch shell is further fixedly connected to the belt wheel, a clutch pressing disc is horizontally arranged in the clutch shell in a sliding mode, the clutch pressing disc abuts against the other side face of the friction plate set in a friction mode, and a driving structure pushing the clutch pressing disc to slide and a reset structure enabling the clutch pressing disc to return are arranged on the clutch shell. The clutch solves the problems that the clutch is poor in reliability and difficult to work for a long time due to the fact that most of harvester clutches in the prior art are mechanical clutches.

Description

Technical Field

[0001] The utility model relates to the technical field of clutch structures, in particular to a power output clutch structure of a corn harvester. Background Art

[0002] With the increasing mechanization of corn harvesting in recent years, users have begun to pursue high-end agricultural machinery with higher quality and reliability. However, the overall performance, especially reliability, of Chinese harvesters still lags far behind that of similar harvesters from abroad. Surveys show that user satisfaction with harvester reliability is very low.

[0003] As the existing devices are used, the shortcomings of the technology are gradually exposed, mainly in the following aspects:

[0004] Most existing harvester clutches use mechanical clutches, which leads to problems such as poor clutch reliability and difficulty in long-term operation.

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

[0006] Aiming at the defects in the prior art, the utility model solves the problem that most harvester clutches in the traditional technology adopt mechanical clutches, which leads to poor reliability of the clutch and difficulty in working for a long time.

[0007] In order to solve the above problems, the present invention provides the following technical solutions:

[0008] The power output clutch structure of a corn crop harvester includes a pulley, a power output shaft is rotatably mounted inside the pulley, one end of the power output shaft is fixedly connected to a clutch hub, a friction plate group is provided on the clutch hub, one side of the friction plate group is in friction with the end face of the pulley, and a clutch housing is also fixed to the pulley, a clutch pressure plate is horizontally slidably provided in the clutch housing, the clutch pressure plate is in friction with the other side face of the friction plate group, and the clutch housing is provided with a driving structure for pushing the clutch pressure plate to slide and a reset structure for returning the clutch pressure plate to its position.

[0009] As an optimized solution, the friction plate group includes a clutch pressure plate fixed on the clutch hub, and friction plate 1 and friction plate 2 are respectively connected to the two sides of the clutch pressure plate. The friction plate 1 rubs against the inner end surface of the clutch pressure plate, and the friction plate 2 rubs against the inner end surface of the pulley. A clutch spring is also provided between the friction plate 2 and the clutch pressure plate.

[0010] As an optimized solution, the driving structure includes a power output cylinder arranged inside the clutch housing, and the driving end of the power output cylinder is connected to the clutch pressure plate.

[0011] As an optimized solution, the reset structure includes several clutch springs arranged around the clutch pressure plate, the outer end surface of the clutch pressure plate is connected to a spring guide sleeve, the spring guide sleeve is slidingly connected to the clutch housing, the clutch spring is fixed to the spring guide sleeve through a clutch spring pressure cover, and the other end of the clutch spring is against the clutch housing.

[0012] As an optimized solution, the other end of the power output shaft is connected to a driven disc, and the driven disc is connected to the engine.

[0013] As an optimized solution, the driven disc includes a driven disc hub fixedly connected to the power output shaft, a driven disc connecting plate 1 is rotatably provided on the driven disc hub, a spring pressure plate is fixedly connected to the driven disc hub, a slot is provided on the driven disc connecting plate 1, a spring is provided in the slot, two ends of the spring are respectively against the slot and the spring pressure plate, and a driven disc connecting plate 2 is fixedly provided on the outer ring of the driven disc connecting plate 1.

[0014] As an optimized solution, a power output outer shaft is rotatably mounted on the power output shaft by means of a cylindrical roller bearing, and one end of the power output outer shaft is fixedly connected to the inner wall of the pulley.

[0015] As an optimized solution, the outer ring of the power output outer shaft is rotatably mounted on the power output housing using a deep groove ball bearing, a travel pump housing is fixedly connected to the power output housing, and the power output shaft is also rotatably supported on the travel pump housing using a cylindrical roller bearing.

[0016] As an optimized solution, the clutch pressure plate, friction plate 1, friction plate 2 and clutch spring are connected by rivets.

[0017] As an optimized solution, an oil inlet connected to the power output cylinder is opened at the center of the outer end surface of the clutch housing, and a rotatable oil pipe joint is fixedly connected to the oil inlet.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The driven disc is equipped with a buffer structure to ensure that the power output of the engine is transmitted to the power output shaft more smoothly;

[0020] It has higher flexibility, easier operation and more stable performance, and plays an important role in the power transmission and control of agricultural machinery such as harvesters. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly describes the drawings required for the specific embodiments or the description of the prior art. Similar elements or parts are generally identified by similar reference numerals throughout the drawings. Elements or parts in the drawings are not necessarily drawn to scale.

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 It is a schematic diagram of the structure of the exterior of the utility model.

[0024] In the figure: 1-clutch spring; 2-clutch spring pressure cover; 3-spring guide sleeve; 4-clutch housing; 5-friction plate 1; 6-clutch pressure plate; 7-friction plate 2; 8-POT outer shaft; 9-deep groove ball bearing; 10-POT shaft; 11-driven disc connecting plate 2; 12-driven disc connecting plate 1; 13-spring pressure plate; 14-slot; 15-driven disc hub; 16-cylindrical roller bearing; 17-POT housing; 18-pulley; 19-clutch spring; 20-clutch pressure plate; 21-clutch hub; 22-POT cylinder; 23-travel pump housing; 24-oil inlet; 25-clutch spring gasket. DETAILED DESCRIPTION

[0025] The following embodiments of the technical solution of the present invention are described in detail with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention and are therefore only examples and are not intended to limit the scope of protection of the present invention.

[0026] like Figure 1 and Figure 2 As shown, the power output clutch structure of the corn crop harvester includes a pulley 18, a power output shaft 10 is rotatably mounted inside the pulley 18, a clutch hub 21 is fixedly connected to one end of the power output shaft 10, a friction plate group is provided on the clutch hub 21, one side of the friction plate group is in friction with the end face of the pulley 18, a clutch housing 4 is also fixedly connected to the pulley 18, a clutch pressure plate 20 is horizontally slidably provided in the clutch housing 4, the clutch pressure plate 20 is in friction with the other side of the friction plate group, and the clutch housing 4 is provided with a driving structure for pushing the clutch pressure plate 20 to slide and a reset structure for returning the clutch pressure plate 20 to its position.

[0027] The friction plate group includes a clutch pressure plate 6 fixed on the clutch hub 21, and friction plate 1 5 and friction plate 2 7 are respectively connected to the two sides of the clutch pressure plate 6. The friction plate 1 5 rubs against the inner end surface of the clutch pressure plate 20, and the friction plate 2 7 rubs against the inner end surface of the pulley 18. A clutch spring 19 is also provided between the friction plate 2 7 and the clutch pressure plate 6.

[0028] The driving structure includes a power output cylinder 22 disposed inside the clutch housing 4 , and a driving end of the power output cylinder 22 is connected to the clutch pressure plate 20 .

[0029] The reset structure includes several clutch springs 1 arranged around the clutch pressure plate 20. The outer end surface of the clutch pressure plate 20 is connected to the spring guide sleeve 3. The spring guide sleeve 3 is slidingly connected to the clutch housing 4. The clutch spring 1 is fixed on the spring guide sleeve 3 through the clutch spring pressure cover 2. The other end of the clutch spring 1 is against the clutch housing 4.

[0030] A clutch spring washer 25 is provided on the outer wall of the clutch housing 4 , and the other end of the clutch spring 1 abuts against the clutch spring washer 25 .

[0031] The other end of the power output shaft 10 is connected to a driven disc, which is connected to the engine.

[0032] The driven disc includes a driven disc hub 15 fixedly connected to the power output shaft 10, a driven disc connecting plate 12 is rotatably provided on the driven disc hub 15, a spring pressure plate 13 is fixedly connected to the driven disc hub 15, a slot 14 is provided on the driven disc connecting plate 12, a spring is provided in the slot 14, two ends of the spring are respectively against the slot 14 and the spring pressure plate 13, a driven disc connecting plate 2 11 is fixedly provided on the outer ring of the driven disc connecting plate 12, which can reduce the wear caused by sudden transmission.

[0033] The power output shaft 10 is rotatably mounted with a power output outer shaft 8 by means of a cylindrical roller bearing 16 , and one end of the outer shaft of the power output shaft 10 is fixedly connected to the inner wall of the pulley 18 .

[0034] The outer ring of the power output outer shaft 8 is rotatably mounted on the power output housing 17 using a deep groove ball bearing 9. The travel pump housing 23 is fixedly connected to the power output housing 17. The power output shaft 10 is also rotatably supported on the travel pump housing 23 using a cylindrical roller bearing 16.

[0035] The clutch pressure plate 6, the friction plate 1 5, the friction plate 2 7 and the clutch spring plate 19 are connected by rivets.

[0036] An oil inlet 24 connected to the power output cylinder 22 is provided at the center of the outer end surface of the clutch housing 4 , and a rotatable oil pipe joint is fixedly connected to the oil inlet 24 .

[0037] The driven disc is provided with a buffer structure to ensure that the power output of the engine is transmitted to the power output shaft 10 more smoothly;

[0038] It has higher flexibility, easier operation and more stable performance, and plays an important role in the power transmission and control of agricultural machinery such as harvesters.

[0039] The working principle of this device is:

[0040] The driven plate rotates with the engine, transmitting power to the clutch hub 21 through the power output shaft 10, which drives the friction plate group to rotate. Oil entering the oil inlet 24 drives the power output cylinder 22 to move. The clutch pressure plate 20 is pressed inward against the friction plate group, and the friction plate group and the pulley 18 are in contact, causing the pulley 18 to rotate.

[0041] After the oil supply is stopped, the clutch spring 1 retracts and drives the clutch pressure plate 20 to retreat, releasing the squeeze on the friction plate group, and then releasing the tension between the friction plate group and the pulley 18, achieving separation from the pulley 18, and the pulley 18 stops rotating.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. A power output clutch structure for a corn harvester, characterized in that: The invention comprises a pulley (18), wherein a power output shaft (10) is rotatably mounted inside the pulley (18), wherein one end of the power output shaft (10) is fixedly connected to a clutch hub (21), wherein a friction plate group is arranged on the clutch hub (21), wherein one side of the friction plate group is frictionally abutted against the end surface of the pulley (18), wherein a clutch housing (4) is also fixedly connected to the pulley (18), wherein a clutch pressure plate (20) is horizontally slidably arranged inside the clutch housing (4), wherein the clutch pressure plate (20) is frictionally abutted against the other side surface of the friction plate group, wherein the clutch housing (4) is provided with a driving structure for pushing the clutch pressure plate (20) to slide, and a resetting structure for returning the clutch pressure plate (20) to its original position.

2. The power output clutch structure of a corn harvester according to claim 1, characterized in that: The friction plate group comprises a clutch pressure plate (6) fixed on the clutch hub (21), and the two sides of the clutch pressure plate (6) are respectively connected with a friction plate 1 (5) and a friction plate 2 (7), the friction plate 1 (5) and the inner end surface of the clutch pressure plate (20) are frictionally abutted, the friction plate 2 (7) and the inner end surface of the pulley (18) are frictionally abutted, and a clutch spring plate (19) is also provided between the friction plate 2 (7) and the clutch pressure plate (6).

3. The power output clutch structure of the corn harvester according to claim 1, characterized in that: The driving structure comprises a power output cylinder (22) arranged inside the clutch housing (4), and a driving end of the power output cylinder (22) is connected to the clutch pressure plate (20).

4. The power output clutch structure of a corn harvester according to claim 1, characterized in that: The reset structure comprises a plurality of clutch springs (1) arranged around the clutch, the outer end surface of the clutch pressure plate (20) is connected with a spring guide sleeve (3), the spring guide sleeve (3) is slidably connected with the clutch housing (4), the clutch spring (1) is fixed to the spring guide sleeve (3) through a clutch spring pressure cover (2), and the other end of the clutch spring (1) is in contact with the clutch housing (4).

5. The power output clutch structure of a corn harvester according to claim 1, characterized in that: The other end of the power output shaft (10) is connected to a driven disc, and the driven disc is connected to the engine.

6. The power output clutch structure of the corn harvester according to claim 5, characterized in that: The driven disc comprises a driven disc hub (15) fixedly connected to the power output shaft (10); a driven disc connecting plate 1 (12) is rotatably provided on the driven disc hub (15); a spring pressure plate (13) is fixedly connected to the driven disc hub (15); a slot (14) is provided on the driven disc connecting plate 1 (12); a spring is provided in the slot (14); two ends of the spring are respectively abutted against the slot (14) and the spring pressure plate (13); and a driven disc connecting plate 2 (11) is fixedly provided on the outer ring of the driven disc connecting plate 1 (12).

7. The power output clutch structure of a corn harvester according to claim 1, characterized in that: The power output shaft (10) is rotatably mounted with a power output outer shaft (8) by means of a cylindrical roller bearing (16); one end of the outer shaft of the power output shaft (10) is fixedly connected to the inner wall of the pulley (18).

8. The power output clutch structure of a corn harvester according to claim 1, characterized in that: The outer ring of the power output outer shaft (8) is rotatably mounted on the power output housing (17) by means of a deep groove ball bearing (9); a travel pump housing (23) is fixedly connected to the power output housing (17); and the power output shaft (10) is rotatably supported on the travel pump housing (23) by means of a cylindrical roller bearing (16).

9. The power output clutch structure of a corn harvester according to claim 2, characterized in that: The clutch pressure plate (6), the first friction plate (5), the second friction plate (7) and the clutch elastic plate (19) are connected by rivets.

10. The power output clutch structure of a corn harvester according to claim 3, characterized in that: An oil inlet (24) connected to the power output oil cylinder (22) is provided at the center of the outer end surface of the clutch housing (4), and a rotatable oil pipe joint is fixedly connected in the oil inlet (24).

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