Device for converting circular motion into reciprocating swing motion

Abstract

The invention discloses a device for converting circular motion into reciprocating swing, which consists of a swing sleeve shaft, a swing sleeve shaft sleeve, a swing box body, a tapered roller bearing, a carbon steel deep groove ball bearing, a swing box belt pulley, a swing sleeve shaft positioning pin, a swing box body cover, a bearing gland, a fixing bolt, a baffle plate, an eccentric sleeve swing shaft pin, an eccentric shaft and the like. The device can convert circular motion into reciprocating type swinging motion, can be used as a power source of a reciprocating type cutting component of the crop harvester, and is stable and reliable in power output and few in fault.

Description

Technical Field

[0001] The invention relates to a mechanical device for converting circular motion into reciprocating swinging motion, and is particularly suitable for providing power for a reciprocating cutter of an agricultural harvesting machinery, and belongs to the technical field of agricultural machinery. Background Art

[0002] The reciprocating cutter is composed of a crank-connecting rod mechanism, in which the crank pin and connecting rod rotate, and the cutter blade and connecting rod reciprocate. Both movements generate unbalanced inertial forces, causing vibration of the machine. The higher the crank speed, the greater the inertial force and vibration generated, which causes greater deformation and damage to the cutter parts themselves and the cutter frame, thereby reducing the strength, life and cutting quality of the machine. A reciprocating cutter power output device with stable and reliable transmission and less inertial force is particularly important in agricultural production. Summary of the invention

[0003] The problem to be solved by the present invention is: in order to overcome the unbalanced inertial force generated by the reciprocating cutter composed of a crank-connecting rod mechanism in an agricultural harvesting machinery during operation, which causes the vibration of the machine, leads to deformation and damage of the cutter itself and the cutting table frame, and thus reduces the strength, life and cutting quality of the machine. The present invention provides a device that converts circular motion into reciprocating swinging motion. This device can replace the crank-connecting rod mechanism for driving the moving knife of the reciprocating cutter, thereby overcoming the disadvantages of the crank-connecting rod mechanism transmission.

[0004] The technical solution adopted by the patent of the present invention to solve its technical problem is: the swing sleeve shaft is connected with the eccentric sleeve through the eccentric sleeve swing shaft pin, the inner ring-free stamped outer ring needle roller bearing 3, and the elastic retaining ring; one end of the swing sleeve shaft is connected with the swing sleeve shaft sleeve through the inner ring-free stamped outer ring needle roller bearing 1; the swing sleeve shaft sleeve is connected with the swing box body through bolts; the other end of the swing sleeve shaft is connected with the swing box body through the inner ring-free stamped outer ring needle roller bearing 2, the swing sleeve shaft positioning shaft, the baffle, and the fixing bolts; the baffle is fixed to the swing box body by bolts to play a limiting role. The central shaft is connected to the eccentric sleeve through a tapered roller bearing, one end of the eccentric shaft is connected to the pendulum box through a carbon steel deep groove ball bearing, and the sealing ring 2 and the bearing cover play a sealing and limiting role. The bearing cover is connected to the pendulum box by bolts, and the other side of the eccentric shaft is connected to the pendulum box cover through a carbon steel deep groove ball bearing. The eccentric angle of the eccentric shaft determines the swing angle of the pendulum sleeve shaft. The pendulum box cover and the sealing ring 1 are connected to the pendulum box through bolts, and the pendulum box pulley and the eccentric shaft are connected through a key and fixed by a large nut.

[0005] The beneficial effects of the present invention are as follows: the device is connected to the engine output power through a belt and adjusted to the best working state. The swing box pulley rotates, driving the eccentric shaft to rotate, causing the eccentric sleeve to swing. The eccentric sleeve causes the swing sleeve shaft to swing through the eccentric sleeve swing shaft pin and the inner ring-free stamped outer ring needle roller bearing 3. The swing box pulley rotates one circle, and the swing sleeve shaft realizes one reciprocating swing. BRIEF DESCRIPTION OF THE DRAWINGS

[0006] The embodiments of the present invention will be further described below in conjunction with the accompanying drawings: Figure 1 The main view of the embodiment of the present invention Figure 2 is a top cross-sectional view of an embodiment of the present invention Figure 3 It is a left side cross-sectional view of an embodiment of the present invention Figure 4 Schematic diagram of an eccentric shaft according to an embodiment of the present invention In the figure, 1. swing sleeve shaft; 2. swing sleeve shaft sleeve; 3. needle roller bearing with stamped outer ring without inner ring 1; 4. swing box; 5. sealing ring 1; 6. tapered roller bearing; 7. carbon steel deep groove ball bearing; 8. swing box pulley; 9. large nut; 10. key; 11. eccentric sleeve; 12. swing box cover; 13. swing sleeve shaft locating shaft; 14. sealing ring 2; 15. bearing pressure cover; 16. fixing bolt; 17. baffle; 18. needle roller bearing with stamped outer ring without inner ring 2; 19. needle roller bearing with stamped outer ring without inner ring 3; 20. eccentric sleeve swing shaft pin; 21. elastic retaining ring; 22. eccentric shaft. DETAILED DESCRIPTION

[0007] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0008] The design purpose of the present invention is achieved in this way: Figure 1-4As shown, a device for converting circular motion into reciprocating swing motion comprises a swing sleeve shaft (1), a swing sleeve shaft sleeve (2), a needle roller bearing without inner ring and stamped outer ring 1 (3), a swing box (4), a sealing ring 1 (5), a tapered roller bearing (6), a carbon steel deep groove ball bearing (7), a swing box pulley (8), a large nut (9), a key (10), an eccentric sleeve (11), a swing box cover (12), a swing sleeve shaft positioning shaft (13), a sealing ring 2 (14), a bearing pressure cover (15), a fixing bolt (16), a baffle (17), a needle roller bearing without inner ring and stamped outer ring 2 (18), a needle roller bearing without inner ring and stamped outer ring 3 (19), an eccentric sleeve swing shaft pin (20), an elastic retaining ring (21), and an eccentric shaft (22). During operation, the engine power is transmitted to the swing box pulley (8) through the belt, driving the swing box pulley (8), the eccentric shaft (22), and the inner ring of the tapered roller bearing (6) to rotate, pushing the eccentric sleeve (11) to swing, and the eccentric sleeve (11) pushes the swing sleeve shaft (1) to swing through the eccentric sleeve swing shaft pin (20) and the inner ring-free stamped outer ring needle roller bearing 3 (19). When the swing box pulley (8) rotates one circle, the swing sleeve shaft (1) swings back and forth once. The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A device for converting circular motion into reciprocating swing motion, comprising a swing sleeve shaft (1), a swing sleeve shaft sleeve (2), a needle roller bearing without inner ring and stamped outer ring 1 (3), a swing box (4), a sealing ring 1 (5), a tapered roller bearing (6), a carbon steel deep groove ball bearing (7), a swing box pulley (8), a large nut (9), a key (10), an eccentric sleeve (11), a swing box cover (12), a swing sleeve shaft positioning shaft (13), a sealing ring 2 (14), a bearing pressure cover (15), a fixing bolt (16), a baffle (17), a needle roller bearing without inner ring and stamped outer ring 2 (18), a needle roller bearing without inner ring and stamped outer ring 3 (19), an eccentric sleeve swing shaft pin (20), an elastic retaining ring (21), and an eccentric shaft (22); the swing sleeve shaft (1) is connected to the eccentric sleeve swing shaft pin (20), the needle roller bearing without inner ring and stamped outer ring 3 (19), the eccentric sleeve swing shaft pin (20), the elastic retaining ring (21), and the eccentric shaft (22); The needle bearing 3 (19), the elastic retaining ring (21) and the eccentric sleeve (11) are connected together. One end of the swing sleeve shaft (1) is connected to the swing sleeve shaft sleeve (2) through the inner ring-free stamped outer ring needle roller bearing 1 (3). The other end of the swing sleeve shaft (1) is connected to the swing housing (4) through the inner ring-free stamped outer ring needle roller bearing 2 (18), the swing sleeve shaft positioning shaft (13), the baffle (17) and the fixing bolt (16). The eccentric shaft (22) is connected to the eccentric sleeve (11) through the tapered roller bearing (6). One end of the eccentric shaft (22) is connected to the swing housing (4) through the carbon steel deep groove ball bearing (7). The other side of the eccentric shaft (22) is connected to the swing housing cover (12) through the carbon steel deep groove ball bearing (7). The eccentric angle of the eccentric shaft (22) determines the swing angle of the swing sleeve shaft (1).

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