Combined duplicate gear structure

Abstract

A combined duplicate gear structure belongs to the technical field of duplicate gears for gear production, and is characterized by comprising a central rotating shaft and anti-abrasion coatings arranged on the left edge and the right edge of the side surface of the central rotating shaft 1, and clamping devices are inserted into the outer side surface of the central rotating shaft in a bilateral symmetry mode. Transmission gears are symmetrically inserted in the middle of the outer side surface of the center rotating shaft left and right, a supporting device is inserted in the middle of the outer side surface of the center rotating shaft, length scales are arranged on the upper portion of the outer side surface of the supporting device, and connecting bolts are inserted in the outer side surface of the supporting device and the outer side surface of the clamping device correspondingly; a worker can quickly change the distance between the two gears at any time, and can quickly replace any gear in the duplicate gear at any time.

Description

Technical Field

[0001] This utility model belongs to the technical field of double gear machinery for gear production, and specifically relates to a combined double gear structure. Background Technology

[0002] The distance between the two gears in the existing double gear is fixed. When selecting a double gear, the staff needs to measure and select a suitable double gear. Furthermore, if one gear in the double gear is damaged, the entire double gear needs to be disassembled and replaced, which is inconvenient for the staff to operate. Utility Model Content

[0003] The purpose of this invention is to enable a single double gear to be used on gears with different spacings on a drive shaft, allowing operators to quickly change the spacing between the two gears and easily replace any one of the gears in the double gear, thus facilitating operation. The technical solution is as follows:

[0004] A combined double gear structure, characterized in that: it includes a central rotating shaft 1 and an anti-wear coating 2 disposed on the left and right edges of the side surface of the central rotating shaft 1; clamping devices 3 are symmetrically inserted into the outer surface of the central rotating shaft 1; transmission gears 4 are symmetrically inserted into the middle of the outer surface of the central rotating shaft 1; a support device 5 is inserted into the middle of the outer surface of the central rotating shaft 1; a length scale 6 is provided above the outer surface of the support device 5; connecting bolts 7 are inserted into the outer surfaces of the support device 5 and the clamping devices 3; the central rotating shaft 1 includes a main shaft 1-1 and a socket. 1-2, slots 1-3, and clips 1-4: Each of the left and right sides of the main shaft 1-1 has a socket 1-2 at its center. Each socket 1-2 has symmetrically arranged slots 1-3 on its inner side surface. Clips 1-4 are symmetrically connected to the outer side surface of the main shaft 1-1. The transmission gear 4 is inserted into the outer surface of the main shaft 1-1. The anti-wear coating 2 is applied to the left and right edges of the outer surface of the main shaft 1-1. The clamping device 3 includes a retaining ring 3-1, a rubber ring 3-2, a threaded hole 3-3, and a groove 3-4. The rubber ring 3-2 is connected to the four edges of the inner side surface of the retaining ring 3-1. The retaining ring 3-1 has a threaded hole 3-3 at the center of the front of its outer surface. The retaining ring 3-1 has symmetrical grooves 3-4 on its inner side surface. The retaining ring 3-1 is inserted into the outer surface of the main shaft 1-1. The retaining strip 1-4 is inserted into the groove 3-4. The connecting bolt 7 is inserted into the threaded hole 3-3. The inner surface of the rubber ring 3-2 contacts the outer surface of the transmission gear 4. The support device 5 includes two clamping plates 5-1, a countersunk hole 5-2, a threaded opening 5-3, and a slot 5-4. The two clamping plates 5-1 are arranged vertically opposite each other. The upper clamping plate 5-1... -1 The upper surface of the spindle 1-1 has symmetrical countersunk holes 5-2 at the middle of the left and right edges. The upper surface of the lower clamping plate 5-1 has symmetrical threaded openings 5-3 at the middle of the left and right edges. The inner surfaces of the upper and lower clamping plates 5-1 each have slots 5-4 at the middle. The positions of the countersunk holes 5-2 and the threaded openings 5-3 correspond to each other. The connecting bolts 7 penetrate the countersunk holes 5-2 and are tightened into the threaded openings 5-3. The two clamping plates 5-1 are semi-circular arc-shaped and are located at the middle of the outer surface of the spindle 1-1. The retaining strips 1-4 are inserted into the slots 5-4.

[0005] The beneficial effects of this utility model are as follows: a double gear can be used on gears with different spacing on the transmission shaft, and the operator can quickly change the spacing between the two gears at any time. The operator can also quickly replace any one of the gears in the double gear, which is convenient for the operator to operate and use. Attached Figure Description

[0006] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0007] Figure 2 This is a schematic diagram of the central rotating shaft 1 of this utility model;

[0008] Figure 3 This is a schematic diagram of the clamping device 3 of this utility model;

[0009] Figure 4 This is a schematic diagram of the support device 5 of this utility model;

[0010] In the diagram: 1. Central shaft; 2. Anti-wear coating; 3. Clamping device; 4. Transmission gear; 5. Support device; 6. Length scale; 7. Connecting bolt; 8. Main shaft; 9. Insert; 10. Slot; 11. Slot; 12. Clip; 13. Clip; 14. Snap ring; 35. Rubber ring; 36. Threaded hole; 37. Groove; 58. Clamping plate; 59. Countersunk hole; 50. Threaded opening; 51. Slot; 52. Slot. Detailed Implementation

[0011] Reference Figures 1-4 The combined double gear structure is characterized by: including a central rotating shaft 1 and an anti-wear coating 2 disposed on the left and right edges of the side surface of the central rotating shaft 1; clamping devices 3 are symmetrically inserted on the left and right sides of the outer surface of the central rotating shaft 1; transmission gears 4 are symmetrically inserted on the left and right sides of the middle of the outer surface of the central rotating shaft 1; a support device 5 is inserted at the middle of the outer surface of the central rotating shaft 1; a length scale 6 is provided above the outer surface of the support device 5; and connecting bolts 7 are inserted on the outer surface of the support device 5 and the outer surface of the clamping device 3.

[0012] In use, the operator first selects a support device 5 of appropriate length by observing the length scale 6 on the support device 5. Then, the support device 5 is installed in the middle of the side surface of the central shaft 1 and fixed with connecting bolts 7. Next, the two transmission gears 4 are inserted into the side surface of the central shaft 1 and contact the left and right surfaces of the support device 5. Then, the clamping device 3 is inserted into the side surface of the central shaft 1 and contacts the transmission gears 4. Then, the clamping device 3 is fixed with connecting bolts 7 and the transmission gears 4 are clamped. Finally, the central shaft 1 is installed in the gearbox and can be used. At the same time, the anti-wear coating 2 can reduce the wear of the central shaft 1 during use.

[0013] Furthermore, the central rotating shaft 1 includes a main shaft 1-1, a socket 1-2, a slot 1-3, and a retaining strip 1-4. A socket 1-2 is provided at the center of the left and right side surfaces of the main shaft 1-1. A slot 1-3 is symmetrically provided on the inner side surface of each socket 1-2. Retaining strips 1-4 are symmetrically connected on the outer side surface of the main shaft 1-1. The transmission gear 4 is inserted into the outer side surface of the main shaft 1-1. The anti-wear coating 2 is provided at the left and right edges of the outer side surface of the main shaft 1-1.

[0014] When in use, the drive shaft can be inserted into the socket 1-2 and the key on the main shaft can be inserted into the slot 1-3 for transmission. Alternatively, the rotating tube can be inserted into the outer sides of the left and right ends of the main shaft 1-1 and secured inside the rotating tube with the retaining strip 1-4. Meanwhile, the anti-wear coating 2 can reduce the wear on the outer surface of the main shaft 1-1.

[0015] Furthermore, the clamping device 3 includes a retaining ring 3-1, a rubber ring 3-2, a threaded hole 3-3, and a groove 3-4. The rubber ring 3-2 is connected to the periphery of the inner surface of the retaining ring 3-1. The threaded hole 3-3 is provided at the center of the front of the outer surface of the retaining ring 3-1. The grooves 3-4 are symmetrically provided on the upper and lower sides of the inner surface of the retaining ring 3-1. The retaining ring 3-1 is inserted into the outer surface of the main shaft 1-1. The retaining strip 1-4 is inserted into the groove 3-4. The connecting bolt 7 is inserted into the threaded hole 3-3. The inner surface of the rubber ring 3-2 is in contact with the outer surface of the transmission gear 4.

[0016] In use, insert the retaining ring 3-1 onto the outer surface of the spindle 1-1, while the retaining strip 1-4 is engaged in the groove 3-4. Then, make contact between the retaining ring 3-1 and the outer surface of the transmission gear 4. Finally, screw the connecting bolt 7 into the threaded hole 3-3 and make the inner surface of the connecting bolt 7 contact the spindle 1-1 to fix the retaining ring 3-1. Meanwhile, the rubber ring 3-2 can reduce the wear between the retaining ring 3-1 and the transmission gear 4.

[0017] Furthermore, the support device 5 includes two clamping plates 5-1, countersunk holes 5-2, threaded openings 5-3, and slots 5-4. The two clamping plates 5-1 are arranged vertically opposite each other. The upper clamping plate 5-1 has countersunk holes 5-2 symmetrically arranged at the middle of the left and right edges of its upper surface, and the lower clamping plate 5-1 has threaded openings 5-3 symmetrically arranged at the middle of the left and right edges of its upper surface. Each of the upper and lower clamping plates 5-1 has a slot 5-4 located at the middle of its inner surface. The position of the countersunk holes 5-2 corresponds to the position of the threaded openings 5-3. The connecting bolts 7 penetrate the countersunk holes 5-2 and are tightened into the threaded openings 5-3. The two clamping plates 5-1 are semi-circular arc-shaped and are located at the middle of the outer surface of the spindle 1-1. The retaining strip 1-4 is inserted into the slot 5-4.

[0018] In use, first set the two clamping plates 5-1 opposite each other and clamp the spindle 1-1 between the two clamping plates 5-1. At the same time, insert the clip 1-4 into the slot 5-4. Then, tighten the connecting bolt 7 through the countersunk hole 5-2 into the threaded opening 5-3 to connect the two clamping plates 5-1 and clamp the spindle 1-1.

[0019] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A combined double gear structure, characterized by: The utility model provides a center shaft (1) and the wear -resisting coating (2) of setting at the left and right edge of center shaft (1) side surface, the center shaft (1) outside surface left and right symmetry insert clamp device (3), the center shaft (1) outside surface middle symmetry insert transmission gear (4), the center shaft (1) outside surface middle insert support device (5), the length scale (6) is equipped with on support device (5) outside surface top, support device (5) outside surface and clamp device (3) outside surface each insert connecting bolt (7).

2. The combined double gear structure according to claim 1, wherein: The center shaft (1) includes a main shaft (1-1), a socket (1-2), a clamping groove (1-3), and a clamping strip (1-4). The main shaft (1-1) has a socket (1-2) on each of its left and right side surfaces. Each socket (1-2) has a clamping groove (1-3) symmetrically arranged on its inner side surface. The main shaft (1-1) has a clamping strip (1-4) symmetrically connected to its outer side surface. The transmission gear (4) is inserted into the outer side surface of the main shaft (1-1). The wear-resistant coating (2) is arranged at the left and right edges of the outer side surface of the main shaft (1-1).

3. The combined double gear structure according to claim 2, wherein: The clamp device (3) includes a clamping ring (3-1), a rubber ring (3-2), a threaded hole (3-3), and a groove (3-4). The clamping ring (3-1) has a rubber ring (3-2) connected to its inner side surface around the edge. The clamping ring (3-1) has a threaded hole (3-3) in the middle of its front outer side surface. The clamping ring (3-1) has a groove (3-4) symmetrically arranged on its inner side surface. The clamping ring (3-1) is inserted into the outer side surface of the main shaft (1-1). The clamping strip (1-4) is inserted into the groove (3-4). The connecting bolt (7) is inserted into the threaded hole (3-3). The inner side surface of the rubber ring (3-2) is in contact with the outer side surface of the transmission gear (4).

4. The combination double gear structure as claimed in claim 2, wherein: The support device (5) includes two clamping plates (5-1), a counterbore (5-2), a threaded hole (5-3), and a slot (5-4). The two clamping plates (5-1) are arranged symmetrically on the top and bottom. The upper clamping plate (5-1) has a counterbore (5-2) symmetrically arranged on its upper surface around the left and right edges. The lower clamping plate (5-1) has a threaded hole (5-3) symmetrically arranged on its upper surface around the left and right edges. The two clamping plates (5-1) each have a slot (5-4) symmetrically arranged on their inner side surfaces. The counterbore (5-2) is positioned to correspond to the threaded hole (5-3). The connecting bolt (7) penetrates the counterbore (5-2) and is tightened in the threaded hole (5-3). The two clamping plates (5-1) are in the shape of a semicircle. The two clamping plates (5-1) are arranged in the middle of the outer side surface of the main shaft (1-1). The clamping strip (1-4) is inserted into the slot (5-4).

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