A tensioning mechanism for a double cradle drive belt

Abstract

The utility model relates to the field of double cradle, disclose a kind of tensioning mechanism of double cradle transmission belt, including mounting plate and locating plate, the mounting plate and locating plate are evenly arranged in the side of installation shell, the side of mounting plate is equipped with two adjustment port, the locating plate is fixed with two adjusting plate on the side close to mounting plate, the adjustment port and adjusting plate sliding fit, the inside of adjustment port is provided with several filler plates, the side of mounting plate is fixed with motor, the output shaft of motor is rotatably inserted with mounting plate, the output shaft of motor is inserted with driving pulley, the side of installation shell is rotatably provided with two driven pulleys, transmission belt is wound between driving pulley and driven pulley. By changing the interval between driving pulley and driven pulley, the transmission belt and driven pulley are in full contact, the friction between transmission belt, driving pulley and driven pulley is increased, to prevent driving pulley and driven pulley from idling.

Description

Technical Field

[0001] This utility model relates to the technical field of double rocking beds, specifically to a tensioning mechanism for a transmission belt of a double rocking bed. Background Technology

[0002] The double rocker bed is a key component in knitting machinery (such as circular knitting machines and flat knitting machines), mainly used to control the lateral (left-right) movement of the needles to achieve complex knitting patterns. It is widely used in high-end knitting machines to meet the complex process requirements of functional fabrics, seamless forming, and other applications.

[0003] According to Chinese Patent No. CN220879182U, a double-layer shaking table includes a support platform and a shaking table body. The shaking table body includes a machine head, a connecting device, and a bed. The bed has two layers. The machine head includes a housing. A speed-regulating motor is provided on one side of the housing. Pulleys are provided on the motor shaft of the speed-regulating motor and on the housing. A transmission belt is provided on the two pulleys. An eccentric component is provided on the pulley. The eccentric component is connected to the bed through the connecting device. A connecting member is provided between the two layers of the bed. The connecting member includes a vertical component and a horizontal component. The vertical component is connected to the two layers of the bed through bolts and threads.

[0004] In the above solution, the use of a transmission belt to drive the pulley has the following disadvantages: after a long period of use, the transmission belt may lose elasticity and thickness due to natural aging and wear, resulting in insufficient contact between the transmission belt and the pulley, causing the pulley to spin freely. Utility Model Content

[0005] The purpose of this invention is to provide a tensioning mechanism for the transmission belt of a double rocker, in order to solve the problem that after long-term use, the transmission belt may lose elasticity and thickness due to natural aging and wear, resulting in insufficient contact between the transmission belt and the pulley and causing the pulley to spin freely.

[0006] To achieve the above-mentioned utility model objectives, the present utility model adopts the following technical solution: a tensioning mechanism for a transmission belt of a double rocker bed, comprising a mounting plate and a positioning plate, both the mounting plate and the positioning plate being disposed on one side of a mounting housing, the mounting plate having two adjustment ports on one side, the positioning plate having two adjustment plates fixed on the side near the mounting plate, the adjustment ports slidingly engaging with the adjustment plates, the adjustment ports having a plurality of filler plates disposed inside, a motor being fixed on one side of the mounting plate, the output shaft of the motor being rotatably inserted into the mounting plate, a drive pulley being inserted into the output shaft of the motor, two driven pulleys being rotatably disposed on one side of the mounting housing, and a transmission belt being wound between the drive pulley and the driven pulleys.

[0007] Preferably, two positioning rings are fixed on one side of the filling plate, and a positioning rod is inserted inside the positioning ring. A blocking circular plate is fixed at both ends of the positioning rod.

[0008] Preferably, the mounting plate has two sliding openings on one side, and a fixing bolt is inserted into the sliding opening. The positioning plate has two through holes on one side, and one end of the fixing bolt passes through the through hole and is threadedly connected to the mounting housing.

[0009] Preferably, limit rings are fixed at both ends of the drive pulley, and a separator ring is sleeved on the drive pulley.

[0010] Preferably, one end of the drive pulley has a rotating hole, a limit strip is fixed to the surface of the motor output shaft, a limit groove is formed on the inner wall of the rotating hole, and the limit strip slides into the limit groove.

[0011] Preferably, one end of the motor output shaft is provided with a threaded groove, and the internal thread of the threaded groove is connected to a mounting bolt.

[0012] Compared with the prior art, the tensioning mechanism of the transmission belt of a double rocking bed that adopts the above technical solution has the following advantages:

[0013] 1. By changing the number of upper and lower filler plates on the adjusting plate, the height of the mounting plate on one side of the positioning plate can be changed, thereby simultaneously changing the distance between the driving pulley and the driven pulley. By changing the distance between them, the tension of the transmission belt can be increased, so that the transmission belt and the driven pulley can make full contact, increasing the friction between the transmission belt and the driving pulley and the driven pulley, and preventing the driving pulley and the driven pulley from spinning freely.

[0014] Second, when the drive pulley is placed on the output shaft of the motor, the limit strip will be inserted into the limit groove. It can then rotate synchronously under the drive of the output shaft of the motor during operation. During the rotation, the two drive belts drive the two driven pulleys to rotate synchronously. During the operation, the separator between the two drive belts and the limit rings at both ends of the drive pulley can prevent the two drive belts from interfering with each other or falling off. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of an embodiment.

[0016] Figure 2 This is a breakdown diagram of an embodiment.

[0017] Figure 3 This is a schematic diagram showing the disassembled mounting plate and positioning plate in an embodiment.

[0018] Figure 4This is a schematic diagram showing the disassembled filling plate and positioning ring in an embodiment.

[0019] In the diagram: 1. Mounting plate; 2. Positioning plate; 3. Mounting housing; 4. Adjustment port; 5. Adjustment plate; 6. Filler plate; 7. Motor; 8. Drive pulley; 9. Driven pulley; 10. Transmission belt; 11. Positioning ring; 12. Positioning rod; 13. Blocking circular plate; 14. Sliding port; 15. Through hole; 16. Fixing bolt; 17. Limiting ring; 18. Separating ring; 19. Rotating hole; 20. Limiting strip; 21. Limiting groove; 22. Threaded groove; 23. Mounting bolt. Detailed Implementation

[0020] The preferred embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] like Figures 1-4 As shown, a tensioning mechanism for a transmission belt of a double rocker includes a mounting plate 1 and a positioning plate 2. Both the mounting plate 1 and the positioning plate 2 are disposed on one side of a mounting housing 3. Two adjustment ports 4 are opened on one side of the mounting plate 1. Two adjustment plates 5 are fixed on the side of the positioning plate 2 near the mounting plate 1. The adjustment ports 4 and the adjustment plates 5 are slidably engaged. Several filling plates 6 are disposed inside the adjustment ports 4. A motor 7 is fixed on one side of the mounting plate 1. The output shaft of the motor 7 is rotatably inserted into the mounting plate 1. A drive pulley 8 is inserted on the output shaft of the motor 7. Two driven pulleys 9 are rotatably disposed on one side of the mounting housing 3. A transmission belt 10 is wound between the drive pulley 8 and the driven pulleys 9. Two positioning rings 11 are fixed on one side of the filling plate 6. A positioning rod 12 is inserted inside the positioning ring 11. A blocking circular plate 13 is fixed at both ends of the positioning rod 12. Two sliding ports 14 are opened on one side of the mounting plate 1. Fixing bolts 16 are inserted inside the sliding ports 14. Two through holes 15 are opened on one side of the positioning plate 2. One end of the fixing bolt 16 passes through the through hole 15 and is threadedly connected to the mounting housing 3.

[0022] In use, before the mounting plate 1 slides down on one side of the positioning plate 2, the fixing bolt 16 is removed from the sliding port 14 to release the position lock between the mounting plate 1, the positioning plate 2, and the mounting housing 3. Then, the operator changes the number of the upper and lower filling plates 6 of the adjusting plate 5. By increasing the filling plate 6 below the adjusting plate 5, the height of the adjusting plate 5 inside the adjusting port 4 can be increased, thereby driving the height of the mounting plate 1 on one side of the positioning plate 2 to be lowered. This also drives the drive pulley 8 to move down simultaneously. When changing the number of the upper and lower filling plates 6 of the adjusting plate 5, the operator first pulls the filling plate 6 out of the adjusting port 4. Then, by using the sliding insertion of the positioning ring 11 and the positioning rod 12, the number of the upper and lower filling plates 6 of the adjusting plate 5 can be adjusted, while also preventing multiple filling plates 6 from separating and falling off.

[0023] By changing the number of upper and lower filler plates 6 on the adjusting plate 5, the height of the mounting plate 1 on one side of the positioning plate 2 can be changed, thereby simultaneously changing the distance between the driving pulley 8 and the driven pulley 9. By changing the distance between them, the tension of the transmission belt 10 can be increased, so that the transmission belt 10 and the driven pulley 9 can be in full contact, increasing the friction between the transmission belt 10 and the driving pulley 8 and the driven pulley 9, and preventing the driving pulley 8 and the driven pulley 9 from spinning idly.

[0024] like Figure 3 As shown, limit rings 17 are fixed at both ends of the drive pulley 8, and a separator ring 18 is fitted on the drive pulley 8. A rotating hole 19 is opened at one end of the drive pulley 8. A limit strip 20 is fixed on the surface of the output shaft of the motor 7. A limit groove 21 is opened on the inner wall of the rotating hole 19. The limit strip 20 and the limit groove 21 are slidably engaged. A threaded groove 22 is opened at one end of the output shaft of the motor 7. A mounting bolt 23 is threadedly connected inside the threaded groove 22.

[0025] In use, when the drive pulley 8 is fitted onto the output shaft of the motor 7, the limiting strip 20 will be inserted into the limiting groove 21. It can then rotate synchronously under the drive of the output shaft of the motor 7 during operation. During the rotation, the two drive belts 10 drive the two driven pulleys 9 to rotate synchronously. During the operation of the drive belts 10, the separating ring 18 between the two drive belts 10 and the limiting rings 17 at both ends of the drive pulley 8 can prevent the two drive belts 10 from interfering with each other or falling off.

[0026] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A tensioning mechanism for a transmission belt of a double rocker bed, comprising a mounting plate (1) and a positioning plate (2), wherein the mounting plate (1) and the positioning plate (2) are both disposed on one side of a mounting housing (3), characterized in that, Two adjustment ports (4) are opened on one side of the mounting plate (1). Two adjustment plates (5) are fixed on the side of the positioning plate (2) near the mounting plate (1). The adjustment ports (4) and the adjustment plates (5) are slidably engaged. Several filling plates (6) are provided inside the adjustment ports (4). A motor (7) is fixed on one side of the mounting plate (1). The output shaft of the motor (7) is rotatably inserted into the mounting plate (1). A drive pulley (8) is inserted on the output shaft of the motor (7). Two driven pulleys (9) are rotatably arranged on one side of the mounting housing (3). A transmission belt (10) is wound between the drive pulley (8) and the driven pulleys (9).

2. The tensioning mechanism for a double-rocking bed drive belt according to claim 1, characterized in that: Two positioning rings (11) are fixed on one side of the filling plate (6). A positioning rod (12) is inserted inside the positioning ring (11). A blocking circular plate (13) is fixed at both ends of the positioning rod (12).

3. The tensioning mechanism for a double-rocking bed drive belt according to claim 1, characterized in that: The mounting plate (1) has two sliding openings (14) on one side, and a fixing bolt (16) is inserted inside the sliding opening (14). The positioning plate (2) has two through holes (15) on one side, and one end of the fixing bolt (16) passes through the through hole (15) and is threaded to the mounting housing (3).

4. The tensioning mechanism for a double-rocking bed drive belt according to claim 1, characterized in that: Limiting rings (17) are fixed at both ends of the drive pulley (8), and a separating ring (18) is sleeved on the drive pulley (8).

5. The tensioning mechanism for a double-rocking bed drive belt according to claim 1, characterized in that: One end of the drive pulley (8) is provided with a rotating hole (19), a limit strip (20) is fixed on the surface of the output shaft of the motor (7), a limit groove (21) is provided on the inner wall of the rotating hole (19), and the limit strip (20) and the limit groove (21) are slidably engaged.

6. The tensioning mechanism for a double-rocking bed drive belt according to claim 1, characterized in that: One end of the output shaft of the motor (7) is provided with a threaded groove (22), and the threaded groove (22) is internally connected with a mounting bolt (23).

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