A double chain synchronous driving device

Abstract

The present invention relates to a double-chain synchronous driving device; the characteristics include: comprising a first driving wheel assembly, a second driving wheel assembly, a first driven wheel assembly, a second driven wheel assembly, a driving mechanism, a first chain and a second chain; a guide rail is arranged between the first chain and the second chain; a conveying chain is arranged movably in the guide rail; the first chain is respectively wound around the first driving wheel assembly and the first driven wheel assembly; the second chain is respectively wound around the second driving wheel assembly and the second driven wheel assembly; the first chain and the second chain drive the conveying chain to move along the guide rail; the driving mechanism drives the first driving wheel assembly to rotate; the first driving wheel assembly is meshed with the second driving wheel assembly. The present invention solves the problems of wear between the conveying chain and the guide rail caused by the existing solution, which reduces the conveying efficiency and increases the maintenance cost, and the driving chain may shake and loosen after long-term use.

Description

Technical Field

[0001] The invention relates to a driving device, in particular to a double-chain synchronous driving device. Background Art

[0002] Generally, closed rail conveying systems are widely used in the production process. Closed rail conveying systems can realize the conveying of materials or finished products. The application of closed rail conveying systems improves production efficiency and reduces the conveying cost in the production process. In the design of closed rail conveying systems, since the chain runs in the closed rail and fits tightly with the closed rail, the inner side of the closed rail is severely worn. The rails need to be replaced frequently, which seriously affects production. At the same time, the maintenance cost is relatively high and the labor intensity is high. How to solve the problem of wear becomes crucial.

[0003] The existing solution uses a driving wheel and a driven wheel to drive the chain to move, and the chain drives the conveyor chain to move along the guide rail. This solution has the following problems: (1) After long-term use, the chain will shake and loosen; (2) The conveyor chain and the guide rail will wear, which reduces the conveying efficiency and increases the maintenance cost. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention discloses a dual-chain synchronous drive device to solve the problems in the prior art of wear between the conveying chain and the guide rail, which reduces the conveying efficiency and increases the maintenance cost, and the shaking and loosening of the drive chain after long-term use.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A double-chain synchronous drive device;

[0007] It includes a first driving wheel assembly, a second driving wheel assembly, a first driven wheel assembly, a second driven wheel assembly, a driving mechanism, a first chain and a second chain; a guide rail is arranged between the first chain and the second chain; a conveying chain is movably arranged in the guide rail; the first chain is respectively wound around the first driving wheel assembly and the first driven wheel assembly; the second chain is respectively wound around the second driving wheel assembly and the second driven wheel assembly; the first chain and the second chain drive the conveying chain to move along the guide rail; the driving mechanism drives the first driving wheel assembly to rotate; the first driving wheel assembly is meshed with the second driving wheel assembly.

[0008] A further technical solution is: the driving device is installed on a bracket; the first driving wheel assembly, the second driving wheel assembly, the first driven wheel assembly and the second driven wheel assembly are rotatably installed on the bracket; the driving mechanism and the guide rail are fixedly installed on the bracket.

[0009] A further technical solution is: the first driving wheel assembly includes a first main bearing installed on the bracket and a first main shaft rotatably arranged in the first main bearing; a first main sprocket and a first transmission wheel are coaxially installed on the first main shaft; one end of the first chain is wound around the first main sprocket; and the first transmission wheel is meshed with the second driving wheel assembly.

[0010] A further technical solution is: the first driven wheel assembly includes a first slave bearing installed on the bracket, a first slave shaft rotatably set in the first slave bearing and a first slave sprocket installed on the first slave shaft; the other end of the first chain is wound around the first slave sprocket.

[0011] A further technical solution is: the second driving wheel assembly includes a second main bearing installed on the bracket, and a second main rotating shaft rotatably set in the second main bearing; a second main sprocket and a second transmission wheel are coaxially mounted on the second main rotating shaft; one end of the second chain is wound around the second main sprocket; and the second transmission wheel is meshed with the first transmission wheel.

[0012] A further technical solution is: the second driven wheel assembly includes a second slave bearing installed on the bracket, a second slave shaft rotatably set in the second slave bearing and a second slave sprocket installed on the second slave shaft; the other end of the second chain is wound around the second slave sprocket.

[0013] A further technical solution is: the driving mechanism includes a driving chain, a power device, a first driving wheel installed on the first driving wheel assembly and a second driving wheel installed on the driving end of the power device; the driving chain is respectively wound around the first driving wheel and the second driving wheel.

[0014] A further technical solution is: the bracket is also provided with an adjusting mechanism for adjusting the tension of the drive chain; the adjusting mechanism includes a base plate fixedly mounted on the bracket, a first screw threadedly connected to the base plate and a tensioning wheel rotatably arranged on the base plate; the first screw drives the tensioning wheel to move closer to or away from the drive chain.

[0015] A further technical solution is: the bracket is also provided with a first tensioning device for adjusting the tension of the first chain; the first tensioning device includes a first fixed part, a first movable part relatively arranged on both sides of the first fixed part and a second screw threadedly connected to the first fixed part; the second screw drives the first movable part to approach or move away from the first chain.

[0016] A further technical solution is: the bracket is also provided with a second tensioning device for adjusting the tension of the second chain; the second tensioning device includes a second fixed member, a second movable member relatively arranged on both sides of the second fixed member and a third screw threadedly connected to the second fixed member; the third screw drives the second movable member to move closer to or away from the second chain.

[0017] The beneficial effects of the present invention are as follows: The present invention designs a dual-chain synchronous drive device that uses a first chain and a second chain to drive the conveyor chain to move. A driving mechanism is used to drive the first driving wheel assembly to rotate, and the first driving wheel assembly drives the second driving wheel assembly to rotate. The dual-chain synchronous drive device brings the following effects: (1) A tensioning device is used to adjust the tension of the chain to avoid loosening and shaking of the chain, thereby ensuring the transmission of power between the driving wheel assembly and the driven wheel assembly and improving the transmission effect; (2) The guide rail is used to limit the conveyor chain to prevent the conveyor chain from shaking when moving; (3) The chain supports the conveyor chain, the conveyor chain does not contact the guide rail, and the conveyor chain and the guide rail do not wear, thereby increasing the service life of the dual-chain synchronous drive device and reducing the maintenance cost; (4) The tension of the drive chain can be adjusted by the adjustment mechanism to avoid loosening of the drive chain, and the power generated by the power device can be smoothly transmitted through the drive chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a top view of the structure of the present invention.

[0019] Figure 2 It is a side structural diagram of the present invention.

[0020] In the figure: 1, first driving wheel assembly; 11, first main bearing; 12, first main shaft; 13, first main sprocket; 14, first transmission wheel; 2, second driving wheel assembly; 21, second main bearing; 22, second main shaft; 23, second main sprocket; 24, second transmission wheel; 3, driving mechanism; 31, power device; 32, first driving wheel; 33, second driving wheel; 34, driving chain; 4, first chain; 41, first tensioning device; 42, first fixing member; 43, first moving member; 44. Second screw rod; 5. Second chain; 51. Second tensioning device; 52. Second fixing member; 53. Second moving member; 54. Third screw rod; 6. Guide rail; 61. Conveyor chain; 7. Bracket; 71. Adjustment mechanism; 72. Bottom plate; 73. First screw rod; 74. Tensioning wheel; 8. First driven wheel assembly; 81. First slave bearing; 82. First slave shaft; 83. First slave sprocket; 9. Second driven wheel assembly; 91. Second slave bearing; 92. Second slave shaft; 93. Second slave sprocket. DETAILED DESCRIPTION

[0021] The specific implementation of this embodiment is described below in conjunction with the accompanying drawings.

[0022] Figure 1 It is a top view of the structure of the present invention. Figure 2 This is a side view of the structure of the present invention. Figure 1 and Figure 2 As shown, the present invention discloses a double-chain synchronous driving device. The direction of X in the figure is the upper end of the top view of the present invention, and the direction of Y in the figure is the right end of the top view of the present invention.

[0023] The double-chain synchronous drive device comprises a first driving wheel assembly 1, a second driving wheel assembly 2, a first driven wheel assembly 8, a second driven wheel assembly 9, a driving mechanism 3, a first chain 4 and a second chain 5. A guide rail 6 is arranged between the first chain 4 and the second chain 5. A conveying chain 61 is movably arranged in the guide rail 6. The first chain 4 is respectively wound around the first driving wheel assembly 1 and the first driven wheel assembly 8. The second chain 5 is respectively wound around the second driving wheel assembly 2 and the second driven wheel assembly 9. The first chain 4 and the second chain 5 drive the conveying chain 61 to move along the guide rail 6. The driving mechanism 3 drives the first driving wheel assembly 1 to rotate. The first driving wheel assembly 1 is meshed with the second driving wheel assembly 2.

[0024] The driving device is mounted on a bracket 7. A first driving wheel assembly 1, a second driving wheel assembly 2, a first driven wheel assembly 8 and a second driven wheel assembly 9 are rotatably mounted on the bracket 7. A driving mechanism 3 and a guide rail 6 are fixedly mounted on the bracket 7.

[0025] The first driving wheel assembly 1 is rotatably mounted on the right side of the rear end of the bracket 7. The second driving wheel assembly 2 is rotatably mounted on the right side of the front end of the bracket 7. The first driven wheel assembly 8 is rotatably mounted on the left side of the rear end of the bracket 7. The second driven wheel assembly 9 is rotatably mounted on the left side of the front end of the bracket 7. The guide rail 6 is mounted on the bracket 7 in the left-right direction. The driving mechanism 3 is vertically mounted on the bracket 7.

[0026] The driving mechanism 3 includes a driving chain 34, a power device 31, a first driving wheel 32 installed on the first driving wheel assembly 1 and a second driving wheel 33 installed on the driving end of the power device 31. The driving chain 34 is respectively wound around the first driving wheel 32 and the second driving wheel 33.

[0027] Preferably, the power device 31 is a motor. The power device 31 is vertically mounted on the bracket 7. The lower end of the power device 31 is the driving end of the power device 31. The second driving wheel 33 is mounted on the lower end of the power device 31. The first driving wheel 32 is mounted on the lower end of the first driving wheel assembly 1. The front end of the driving chain 34 is wound around the first driving wheel 32. The rear end of the driving chain 34 is wound around the second driving wheel 33.

[0028] The power device 31 is a motor, and the selection of the motor model belongs to common knowledge. Those skilled in the art can select according to the working conditions of the device, for example, the motor model GH22-20-30S can be selected.

[0029] The bracket 7 is also provided with an adjusting mechanism 71 for adjusting the tension of the drive chain 34. The adjusting mechanism 71 includes a bottom plate 72 fixedly mounted on the bracket 7, a first screw rod 73 threadedly connected to the bottom plate 72, and a tensioning wheel 74 rotatably arranged on the bottom plate 72. The first screw rod 73 drives the tensioning wheel 74 to move closer to or away from the drive chain 34.

[0030] The lower end of the bottom plate 72 is connected to the bracket 7. The first screw rod 73 is threadedly connected to the left end of the bottom plate 72. The right end of the first screw rod 73 is connected to the tensioning wheel 74.

[0031] When the first screw rod 73 is turned clockwise, the first screw rod 73 drives the tension wheel 74 to move rightward, and the tension wheel 74 presses the drive chain 34. When the first screw rod 73 is turned counterclockwise, the first screw rod 73 drives the tension wheel 74 to move leftward, and the tension wheel 74 no longer presses the drive chain 34.

[0032] The first driving wheel assembly 1 can be stably driven to rotate by the power device 31. The power can be stably transmitted by the drive chain 34. After the double-chain synchronous drive device is used for a long time, the drive chain 34 will become loose. The tension of the drive chain 34 can be adjusted by the adjustment mechanism 71 to prevent the drive chain 34 from becoming loose, and the power generated by the power device 31 can be stably transmitted through the drive chain 34.

[0033] The first driving wheel assembly 1 includes a first main bearing 11 mounted on the bracket 7 and a first main shaft 12 rotatably disposed in the first main bearing 11. A first main sprocket 13 and a first transmission wheel 14 are coaxially mounted on the first main shaft 12. One end of the first chain 4 is wound around the first main sprocket 13. The first transmission wheel 14 is meshed with the second driving wheel assembly 2.

[0034] The first driven wheel assembly 8 comprises a first slave bearing 81 mounted on the bracket 7, a first slave shaft 82 rotatably disposed in the first slave bearing 81, and a first slave sprocket 83 mounted on the first slave shaft 82. The other end of the first chain 4 is wound around the first slave sprocket 83.

[0035] Preferably, the first main shaft 12 is cylindrical. Preferably, there are two first main bearings 11. The first main bearings 11 are respectively located at the upper and lower sides of the first main shaft 12. The first driving wheel 32 is installed at the lower end of the first main shaft 12. The first driving wheel 32 drives the first main shaft 12, the first main sprocket 13 and the first transmission wheel 14 to rotate.

[0036] Preferably, the first slave shaft 82 is cylindrical. Preferably, there are two first slave bearings 81. The first slave bearings 81 are respectively located on the upper and lower sides of the first slave shaft 82. The right end of the first chain 4 is wound around the first main sprocket 13. The left end of the first chain 4 is wound around the first slave sprocket 83. The rotation of the first main sprocket 13 drives the movement of the first chain 4, and the first chain 4 drives the first slave shaft 82 and the first slave sprocket 83 to rotate.

[0037] The second driving wheel assembly 2 includes a second main bearing 21 mounted on the bracket 7, and a second main shaft 22 rotatably disposed in the second main bearing 21. A second main sprocket 23 and a second transmission wheel 24 are coaxially mounted on the second main shaft 22. One end of the second chain 5 is wound around the second main sprocket 23. The second transmission wheel 24 is meshed with the first transmission wheel 14.

[0038] The second driven wheel assembly 9 includes a second slave bearing 91 mounted on the bracket 7, a second slave shaft 92 rotatably disposed in the second slave bearing 91, and a second slave sprocket 93 mounted on the second slave shaft 92. The other end of the second chain 5 is wound around the second slave sprocket 93.

[0039] Preferably, the second main shaft 22 is cylindrical. Preferably, there are two second main bearings 21. The second main bearings 21 are respectively located at the upper and lower sides of the second main shaft 22. The first transmission wheel 14 drives the second main shaft 22, the second main sprocket 23 and the second transmission wheel 24 to rotate.

[0040] Preferably, the second slave shaft 92 is cylindrical. Preferably, there are two second slave bearings 91. The second slave bearings 91 are respectively located on the upper and lower sides of the second slave shaft 92. The right end of the second chain 5 is wound around the second main sprocket 23. The left end of the second chain 5 is wound around the second slave sprocket 93. The rotation of the second main sprocket 23 drives the movement of the second chain 5. The second chain 5 drives the second slave shaft 92 and the second slave sprocket 93 to rotate.

[0041] The rear end of the first chain 4 moves along the guide rail 6. The front end of the second chain 5 moves along the guide rail 6. The rear end of the first chain 4 is connected to the front end of the conveyor chain 61. The front end of the second chain 5 is connected to the rear end of the conveyor chain 61. The guide rail 6 limits the conveyor chain 61, preventing the conveyor chain 61 from shaking when moving, thereby ensuring the stability of the movement of the conveyor chain 61, the first chain 4 and the second chain 5. The first chain 4 and the second chain 5 support the conveyor chain 61. When the conveyor chain 61 moves, the conveyor chain 61 does not contact the guide rail 6, and the conveyor chain 61 and the guide rail 6 do not wear each other, thereby improving the service life of the double-chain synchronous drive device.

[0042] The second transmission wheel 24 is meshed with the first transmission wheel 14 to realize the transmission between the first driving wheel assembly 1 and the second driving wheel assembly 2, thereby ensuring the stability of the power transmission between the first driving wheel assembly 1 and the second driving wheel assembly 2. The first driving wheel assembly 1 and the second driving wheel assembly 2 can realize non-differential transmission through gear transmission, so that the first chain 4 and the second chain 5 are evenly stressed.

[0043] The bracket 7 is also provided with a first tensioning device 41 for adjusting the tension of the first chain 4. The first tensioning device 41 includes a first fixing member 42, first moving members 43 arranged on both sides of the first fixing member 42, and a second screw rod 44 threadedly connected to the first fixing member 42. The second screw rod 44 drives the first moving member 43 to approach or move away from the first chain 4.

[0044] Preferably, there are multiple second screw rods 44. Preferably, there are two first moving members 43. The first fixed member 42 is vertically arranged. The first moving member 43 is respectively located at the front and rear sides of the first fixed member 42. When the second screw rod 44 is turned clockwise, the second screw rod 44 pushes the first moving member 43 to approach the first chain 4, and the first moving member 43 presses the first chain 4. When the second screw rod 44 is turned counterclockwise, the second screw rod 44 pushes the first moving member 43 away from the first chain 4, and the first moving member 43 no longer presses the first chain 4.

[0045] The first tensioning device 41 can be used to adjust the tension of the first chain 4 to prevent the first chain 4 from loosening and shaking, thereby ensuring the transmission of power between the first driving wheel assembly 1 and the first driven wheel assembly 8 and improving the transmission effect.

[0046] The bracket 7 is also provided with a second tensioning device 51 for adjusting the tension of the second chain 5; the second tensioning device 51 comprises a second fixing member 52, second moving members 53 arranged on both sides of the second fixing member 52, and a third screw 54 threadedly connected to the second fixing member 52. The third screw 54 drives the second moving member 53 to move closer to or away from the second chain 5.

[0047] Preferably, there are multiple third screw rods 54. Preferably, there are two second moving members 53. The second fixed member 52 is vertically arranged. The second moving member 53 is respectively located at the front and rear sides of the second fixed member 52. When the third screw rod 54 is turned clockwise, the third screw rod 54 pushes the second moving member 53 close to the second chain 5, and the second moving member 53 presses the second chain 5. When the third screw rod 54 is turned counterclockwise, the third screw rod 54 pushes the second moving member 53 away from the second chain 5, and the second moving member 53 no longer presses the second chain 5.

[0048] The second tensioning device 51 can be used to adjust the tension of the second chain 5 to prevent the second chain 5 from loosening and shaking, thereby ensuring the transmission of power between the second driving wheel assembly 2 and the second driven wheel assembly 9 and improving the transmission effect.

[0049] The first chain 4 and the second chain 5 move synchronously, so that the first chain 4 and the second chain 5 are evenly stressed without the effect of lateral force.

[0050] In this embodiment, the power device 31 described is an electric motor, but it is not limited to this and can be other power devices within the scope that can perform its functions.

[0051] In addition, in this specification, the words "cylindrical" and the like are used. However, these words do not necessarily mean "cylindrical" but may be "substantially cylindrical" within a range where the functions can be exhibited.

[0052] In addition, in this specification, numbers such as "two" and "plurality" are used, but they are not limited to these and may be other numbers within the range in which the functions can be exerted.

[0053] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0054] The above description is an explanation of the present invention, not a limitation of the present invention. The scope of the present invention is defined in the claims. The present invention may be modified in any form without violating the basic structure of the present invention.

Claims

1. A double-chain synchronous driving device, characterized in that: The invention comprises a first driving wheel assembly (1), a second driving wheel assembly (2), a first driven wheel assembly (8), a second driven wheel assembly (9), a driving mechanism (3), a first chain (4) and a second chain (5); a guide rail (6) is arranged between the first chain (4) and the second chain (5); a conveying chain (61) is movably arranged in the guide rail (6); the first chain (4) is respectively wound around the first driving wheel assembly (1) and the first driven wheel assembly (8); the second chain (5) is respectively wound around the second driving wheel assembly (2) and the second driven wheel assembly (9); the first chain (4) and the second chain (5) drive the conveying chain (61) to move along the guide rail (6); the driving mechanism (3) drives the first driving wheel assembly (1) to rotate; the first driving wheel assembly (1) is meshed with the second driving wheel assembly (2); The driving device is mounted on a bracket (7); the first driving wheel assembly (1), the second driving wheel assembly (2), the first driven wheel assembly (8) and the second driven wheel assembly (9) are rotatably mounted on the bracket (7); the driving mechanism (3) and the guide rail (6) are fixedly mounted on the bracket (7); The first driving wheel assembly (1) comprises a first main bearing (11) mounted on the bracket (7) and a first main rotating shaft (12) rotatably arranged in the first main bearing (11); a first main sprocket (13) and a first transmission wheel (14) are coaxially mounted on the first main rotating shaft (12); one end of the first chain (4) is wound around the first main sprocket (13); the first transmission wheel (14) is meshed with the second driving wheel assembly (2); The driving mechanism (3) comprises a driving chain (34), a power device (31), a first driving wheel (32) mounted on the first driving wheel assembly (1), and a second driving wheel (33) mounted on the driving end of the power device (31); the driving chain (34) is respectively wound around the first driving wheel (32) and the second driving wheel (33); The first chain (4) and the second chain (5) support the conveying chain (61); when the conveying chain (61) moves, the conveying chain (61) and the guide rail (6) do not come into contact, and the conveying chain (61) and the guide rail (6) do not wear each other.

2. The double-chain synchronous driving device according to claim 1, characterized in that: The first driven wheel assembly (8) comprises a first slave bearing (81) mounted on the bracket (7), a first slave shaft (82) rotatably disposed in the first slave bearing (81), and a first slave sprocket (83) mounted on the first slave shaft (82); the other end of the first chain (4) is wound around the first slave sprocket (83).

3. The double-chain synchronous driving device according to claim 1, characterized in that: The second driving wheel assembly (2) comprises a second main bearing (21) mounted on the bracket (7), and a second main rotating shaft (22) rotatably arranged in the second main bearing (21); a second main sprocket (23) and a second transmission wheel (24) are coaxially mounted on the second main rotating shaft (22); one end of the second chain (5) is wound around the second main sprocket (23); and the second transmission wheel (24) is meshed with the first transmission wheel (14).

4. The double-chain synchronous driving device according to claim 3, characterized in that: The second driven wheel assembly (9) comprises a second slave bearing (91) mounted on the bracket (7), a second slave shaft (92) rotatably disposed in the second slave bearing (91), and a second slave sprocket (93) mounted on the second slave shaft (92); the other end of the second chain (5) is wound around the second slave sprocket (93).

5. The double-chain synchronous driving device according to claim 1, characterized in that: The bracket (7) is further provided with an adjustment mechanism (71) for adjusting the tension of the drive chain (34); the adjustment mechanism (71) comprises a base plate (72) fixedly mounted on the bracket (7), a first screw rod (73) threadedly connected to the base plate (72), and a tensioning wheel (74) rotatably arranged on the base plate (72); the first screw rod (73) drives the tensioning wheel (74) to move closer to or farther away from the drive chain (34).

6. The double-chain synchronous driving device according to claim 1, characterized in that: The bracket (7) is further provided with a first tensioning device (41) for adjusting the tensioning degree of the first chain (4); the first tensioning device (41) comprises a first fixing member (42), a first moving member (43) arranged on both sides of the first fixing member (42) and a second screw rod (44) threadedly connected to the first fixing member (42); the second screw rod (44) drives the first moving member (43) to move closer to or away from the first chain (4).

7. The double-chain synchronous driving device according to claim 1, characterized in that: The bracket (7) is further provided with a second tensioning device (51) for adjusting the tensioning degree of the second chain (5); the second tensioning device (51) comprises a second fixing member (52), second moving members (53) arranged on two sides of the second fixing member (52) and a third screw rod (54) threadedly connected to the second fixing member (52); the third screw rod (54) drives the second moving member (53) to move closer to or away from the second chain (5).

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