CN105673786A - End surface toothed chain transmission mechanism - Google Patents

Abstract

The invention relates to the field of mechanical mechanisms, in particular to a transmission mechanism with innovative design on the transmission principle and sprocket teeth distributed on the end surface of the sprocket wheel—an end-face tooth chain transmission mechanism. It is mainly composed of an adjusting seat, a fixed seat, a rolling bearing, an end-toothed sprocket assembly I, an end-toothed chain, an end-toothed sprocket assembly II, an adjusting plate, an adjusting screw and a positioning pin. The invention is an innovative principle of a chain drive mechanism, novel in conception, reasonable in structure and feasible in scheme.

Description

End tooth chain transmission mechanism

technical field

The invention relates to the field of mechanical mechanisms, in particular to a transmission mechanism with innovative design on the principle of chain transmission and sprocket teeth distributed on the end surface of the sprocket—an end-face tooth chain transmission mechanism.

Background technique

Chain transmission mechanism is a common mechanical transmission mechanism. Compared with belt transmission, it has the advantages of no slippage, high transmission efficiency, accurate average transmission ratio, compact structure, and ability to work in harsh environments, so it is widely used. Used in agricultural, mining, lifting and transportation machinery. Since the sprocket teeth of the chain transmission are distributed on the circumference of the outer cylindrical surface of the sprocket, when the chain in the chain transmission mechanism is subjected to a large axial force during transmission, it is easy to slip out of the sprocket or damage the sprocket. Thereby the scope of use of the chain drive is limited.

Contents of the invention

In order to solve the above problems, the present invention provides a chain transmission mechanism based on a brand-new chain transmission principle—an end-toothed chain transmission mechanism.

The technical scheme adopted in the present invention is:

Described end tooth chain transmission mechanism is mainly made of adjusting seat, fixed seat, rolling bearing, end tooth sprocket assembly I, end tooth chain, end tooth sprocket assembly II, connecting plate, adjusting screw mandrel and positioning pin.

The end tooth sprocket assembly I and the end tooth sprocket assembly II have the same structure, and are mainly composed of a disc seat I, a tooth unit, an end tooth disc and a disc seat II. The end face toothed disc has some tooth unit holes and shaft I evenly distributed on its end face. The tooth unit is composed of a sprocket column and a guide cylinder. The sprocket column has a guide cylinder installation hole, and the outer head of the sprocket column is a sprocket. The guide cylinder has a cylinder I. Described cylinder 1 cooperates with described guide cylinder installation hole and is fixed with jump ring.

The fixed seat has a bearing mounting hole I and a T-shaped groove, and the adjusting seat has a bearing mounting hole II, a T shape and a through hole I. The T-shape of the adjusting seat is matched with the T-shaped groove of the fixing seat.

Described disc seat 1 has fixing hole 1, pin hole 1, connecting boss, low track 1, transition track 1 and high track 1. The disc seat II has a fixing hole II, a pin hole II, a connecting groove, a low track II, a transition track II and a high track II.

The connecting plate is connected with the fixing base by two screws. The adjusting screw rod passes through the connecting plate in turn, screwing in a nut, the through hole I of the adjusting seat and screwing in another nut. The sprocket posts of several tooth units are sequentially installed in each of the tooth unit holes of the end tooth disc, and the sprocket posts can slide in the tooth unit holes. Install the shaft I of the end toothed disc into the inner hole of the inner ring of the rolling bearing, and install the outer ring of the rolling bearing in the bearing installation hole I. Insert the connecting boss of the disc base I into the connecting groove of the disc base II, respectively use two screws to connect with the fixing seat through the fixing hole I and the fixing hole II, and use Four pieces of said locating pins realize positioning. The guide cylinder is located in a circular orbit formed by the low orbit I, the transition orbit I, the high orbit I, the high orbit II, the transition orbit II and the low orbit II. In this way, the connection between the end tooth sprocket assembly 1 and the fixed seat has been realized. In the same way, the connection between the face gear sprocket assembly II and the adjusting seat is realized.

The end tooth chain is formed by connecting several chain link units. The chain link unit is composed of a connecting pin I, a chain link block, a rolling sleeve and a connecting pin II, and the chain link block, the rolling sleeve and the connecting pin II form a sprocket groove. The sprocket slots cooperate with the sprockets.

Install the end-tooth chain on the sprockets corresponding to the end-tooth sprocket assembly I and the end-tooth sprocket II, and adjust the tightness of the end-tooth chain through the adjusting screw .

The beneficial effects of the present invention are:

The invention is an innovative principle of a chain drive mechanism, novel in conception, reasonable in structure and feasible in scheme.

Description of drawings

Below in conjunction with figure of the present invention further illustrate:

Fig. 1 is a structural schematic diagram of the present invention.

Figure 2 is an exploded view of the present invention.

Fig. 3 is a structural schematic diagram of the face tooth sprocket assembly I and the face tooth sprocket assembly II.

Fig. 4 is an exploded view of the face tooth sprocket assembly I and the face tooth sprocket assembly II.

Fig. 5 and Fig. 6 are structural schematic diagrams of the end tooth disc.

Fig. 7 is a schematic structural view of the tooth unit.

Fig. 8 is a structural schematic diagram of the sprocket column.

FIG. 9 and FIG. 10 are structural schematic diagrams of the disk base I.

Fig. 11 and Fig. 12 are structural schematic diagrams of the disc base II.

Fig. 13 is a schematic structural view of the chain link unit.

Fig. 14 is an exploded view of the link unit.

Fig. 15 is a schematic structural view of the fixing seat.

Fig. 16 is a schematic structural view of the adjusting seat.

Fig. 17 is a structural schematic diagram of the guide cylinder.

In the figure, 1. Adjusting seat, 2. Fixed seat, 3. Rolling bearing, 4. End tooth sprocket assembly I, 5. End tooth chain, 6. End tooth sprocket assembly II, 7. Connecting plate, 8. Adjusting screw, 9. Locating pin, 10. Disc base I, 11. Tooth unit, 12. End tooth disc, 13. Disc base II, 14. Gear unit hole, 15. Chain tooth column, 16. Guide cylinder installation hole , 17. Fixing hole I, 18. Pin hole I, 19. Connecting boss, 20. Low track I, 21. Transition track I, 22. High track I, 23. Fixing hole II, 24. Pin hole II, 25 .Connecting groove, 26. Low rail II, 27. Transition rail II, 28. High rail II, 29. Connecting pin I, 30. Link block, 31. Rolling sleeve, 32. Connecting pin II, 33. Bearing installation Hole I, 34. T-slot, 35. Bearing mounting hole II, 36. T-type, 37. Shaft I, 38. Sprocket groove, 39. Sprocket, 40. Guide cylinder, 41. Through hole I, 42. Cylinder I.

detailed description

The end tooth chain transmission mechanism is mainly composed of the adjustment seat (1), the fixed seat (2), the two rolling bearings (3), the end tooth sprocket assembly I (4), the end surface Toothed chain (5), described end surface toothed sprocket assembly II (6), described connecting plate (7), described adjusting screw mandrel (8) and 8 described positioning pins (9) constitute. See Figure 1 and Figure 2.

The end tooth sprocket assembly I (4) and the end tooth sprocket assembly II (6) have the same structure, mainly composed of the disc seat I (10), the tooth unit (11), the end surface The toothed disc (12) and the disc seat II (13) constitute. See Figure 3 and Figure 4.

The end face toothed disc (12) has a number of said tooth unit holes (14) and said shaft I (37) uniformly distributed on its end face. See Figure 5 and Figure 6.

The tooth unit (11) is composed of the sprocket column (15) and the guide cylinder (40). The sprocket column has the guide cylinder installation hole (16), and the outer head of the sprocket column (15) is the sprocket (39). The guide cylinder (40) has the cylinder I (42). The cylinder I (42) cooperates with the guide cylinder mounting hole (16) and is fixed with a snap ring. See Figure 7 and Figure 8.

The fixed seat (2) has the bearing mounting hole I (33) and the T-shaped groove (34), and the adjusting seat (1) has the bearing mounting hole II (35) and the T-shaped ( 36). The T-shape (36) of the adjusting seat (1) cooperates with the T-shaped groove (34) of the fixing seat (2). See Figure 15 and Figure 16.

The disc seat I (10) has the fixing hole I (17), the pin hole I (18), the connecting boss (19), the low track I (20), the transition track I (21) and the high orbit I (22). The disc seat II (13) has the fixing hole II (23), the pin hole II (24), the connection groove (25), the low track II (26), and the transition track II (27) and the High Orbit II (28). See Figure 9, Figure 10, Figure 11, Figure 12.

The connecting plate (7) is connected with the fixing base (2) through two screws. The adjusting screw rod (8) penetrates into the connecting plate (7) sequentially, screws into a nut, penetrates into the through hole I (41) of the adjusting seat (1) and screws into another nut .

The sprocket posts (15) of several tooth units (11) are sequentially installed in each of the tooth unit holes (14) of the end tooth disc (12), and the sprocket posts (15) can be The tooth unit slides in the hole (14). Put the shaft I (37) of the end face gear plate (12) into the inner hole of the inner ring of the rolling bearing (3), install the outer ring of the rolling bearing (3) in the bearing installation hole I ( 33) inside. Insert the connecting boss (19) of the disc base I (10) into the connecting groove (25) of the disc base II (13), pass two screws through the fixing hole I (17) ), the fixing hole II (23) is connected with the fixing seat (2), and realizes positioning with four pieces of the positioning pins (9). The guide cylinder (40) is located on the low orbit I (20), the transition orbit I (21), the high orbit I (22), the high orbit II (28), the transition orbit II (27) and the cyclic orbit formed by the low orbit II (26). In this way, the connection between the end gear sprocket assembly I (4) and the fixed seat (2) is realized. In the same way, the connection between the end gear sprocket assembly II (6) and the adjustment seat (1) is realized.

The end tooth chain (5) is formed by connecting several chain link units.

The chain link unit is composed of the connecting pin I (29), the chain link block (30), the rolling sleeve (31) and the connecting pin II (32), the chain link block, the The rolling sleeve and the connecting pin II constitute the sprocket groove (38). The sprocket groove (38) cooperates with the sprocket (39).

Install the end tooth chain (5) on several sprockets (39) corresponding to the end tooth sprocket assembly I (4) and the end tooth sprocket assembly II (6), through the The adjusting screw rod (8) regulates the tightness of the end tooth chain (5).

The transmission case is discussed below.

Assuming that the shaft I (37) of the face tooth sprocket assembly I (4) rotates, that is, the face tooth disc (12) of the face tooth sprocket assembly I (4) rotates, due to the The disc base I (10) and the disc base II (13) are fixed on the fixed seat (2), so the guide cylinder (40) of each tooth unit (11) is sequentially along the lower Orbit I (20), the transition orbit I (21), the high orbit I (22), the high orbit II (28), the transition orbit II (27) and the low orbit II (26) The constituted circular orbital movement, when the guide column (40) enters the high orbital movement composed of the high orbit I (22) and the high orbit II (28), the sprocket column (15 ) protrudes outward immediately and inserts the sprocket (39) into the sprocket slot (38) of the end tooth chain (5), thereby driving the end tooth chain (5) to rotate, when the guide When the cylinder (40) passes through the transition orbit I (21) or the transition orbit II (27), and enters into the low orbit movement composed of the low orbit I (20) and the low orbit II (26) , the sprocket column (15) shrinks inward immediately and makes the sprocket (39) withdraw from the sprocket groove (38) of the face tooth chain (5), thereby realizing the The sprocket (39) of each sprocket column (15) of the assembly I (4) meshes with the end face tooth chain (5).

With the rotation of the end-tooth chain (5), it drives the end-tooth sprocket assembly II (6) to rotate, thereby realizing the transmission of the end-tooth chain transmission mechanism.

According to the disclosure and teaching of the above specification, those skilled in the art to which the present invention pertains can also make appropriate changes and modifications to the above embodiment. Therefore, the present invention is not limited to the specific embodiments disclosed above, and some modifications and changes to the present invention should also fall within the protection scope of the claims of the present invention, including changing the specific structure of the end tooth chain and the like. In addition, although some specific terms are used in this specification, these terms are only for convenience of description and do not constitute any limitation to the present invention.

Claims (6)

1. An end tooth chain transmission mechanism, characterized in that: it mainly consists of an adjusting seat, a fixed seat, a rolling bearing, an end tooth sprocket assembly I, an end tooth chain, an end tooth sprocket assembly II, a connecting plate, and an adjusting screw rod and positioning pins. 2. The end tooth chain transmission mechanism according to claim 1, the end tooth sprocket assembly I and the end tooth sprocket assembly II have the same structure, and it is characterized in that: it is mainly composed of a disk seat I, a tooth unit, The end tooth plate is composed of a disc seat II; the end tooth plate has a number of tooth unit holes and shaft I uniformly distributed on the end face; the tooth unit is composed of a chain tooth column and a guide cylinder; the chain tooth column is installed with a guide cylinder The outer head of the sprocket column is a sprocket; the guide cylinder is matched with the installation hole of the guide cylinder. 3. The end face gear chain transmission mechanism as claimed in claim 1, characterized in that: the fixed seat has a bearing mounting hole I and a T-shaped groove, and the adjusting seat has a bearing mounting hole II, a T-shaped hole and a through hole I; The T-shape of the adjusting seat is matched with the T-shaped groove of the fixing seat. 4. The end-face toothed chain transmission mechanism as claimed in claim 2, characterized in that: said disc seat I has a fixed hole I, a pin hole I, a connecting boss, a low track I, a transition track I and a high track I; Said disk seat II has fixing hole II, pin hole II, connection groove, low track II, transition track II and high track II. 5. The end tooth chain transmission mechanism according to claim 1, characterized in that: the connecting plate is connected to the fixing seat through two screws; A nut, the through hole I of the adjusting seat and another nut are screwed into; the sprocket posts of several of the tooth units are sequentially installed in each of the tooth unit holes of the end face toothed disc, so that The sprocket column can slide in the tooth unit hole; the shaft I of the end face toothed disc is installed in the inner hole of the inner ring of the rolling bearing, and the outer ring of the rolling bearing is installed in the bearing installation hole Inside I: insert the connecting boss of the disc base I into the connecting groove of the disc base II, and use two screws respectively to pass through the fixing hole I, the fixing hole II and the fixing seat connected, and use four positioning pins to achieve positioning; the guide cylinder is located by the low track I, the transition track I, the high track I, the high track II, the transition track II and the The circular track formed by the low track II; in this way, the connection between the end tooth sprocket assembly I and the fixed seat is realized; similarly, the connection between the end tooth sprocket assembly II and the adjustment seat is realized. 6. The end tooth chain transmission mechanism as claimed in claim 1, characterized in that: the end tooth chain is connected by several chain link units; the chain link unit is composed of connecting pin 1, chain link block, rolling sleeve and The connecting pin II is formed, and the chain link block, the rolling sleeve and the connecting pin II form a sprocket groove; the sprocket groove is matched with the sprocket.