Chain wheel adjusting seat

Abstract

The utility model provides a sprocket adjusting seat which comprises a mounting seat and a sprocket, and further comprises a horizontal adjusting mechanism and a lifting adjusting mechanism, the sprocket is arranged on the mounting seat through a wheel shaft, a sliding groove is formed in the mounting seat, the end of the wheel shaft is inserted into the sliding groove, a first adjusting bolt is arranged on the mounting seat, and a second adjusting bolt is arranged on the lifting adjusting mechanism. The first adjusting bolt penetrates through the side wall of the sliding groove to be connected with the wheel shaft, the horizontal adjusting mechanism comprises an adjusting plate and a second adjusting bolt, the adjusting plate is arranged at the bottom of the mounting base, a strip-shaped hole is formed in the adjusting plate, and the second adjusting bolt penetrates through the strip-shaped hole to be connected to the lifting adjusting mechanism. Through structural optimization, the adjusting seat is higher in flexibility, displacement adjustment of the X axis, the Y axis and the Z axis can be conducted, and safety is higher.

Description

Technical Field

[0001] The utility model relates to the field of sprocket transmission, in particular to a sprocket adjusting seat. Background Art

[0002] Chain drive is a transmission method that transmits the movement and power of a driving sprocket with a special tooth shape to a driven sprocket with a special tooth shape through a chain. Compared with belt drive, it has no elastic sliding and slipping, accurate average transmission ratio, reliable operation and high efficiency. However, after long-term use of the chain, the chain links will become longer due to wear, which is easy to cause tooth jumping or chain derailment. Therefore, the chain is generally tensioned again by adjusting the sprocket and changing the distance between the two wheels. However, most existing chain tensioners are fixed base structures, which are directly fixed to the position where they need to be installed or on the carrier by screws. This has poor applicability and cannot be flexibly adjusted according to needs. Moreover, the adjustment structure of the sprocket is complicated. For example, in the chain adjustment and tensioning device disclosed in patent CN108662102A, the sprocket is arranged in a slide groove by an adjusting bolt and a limit spring, which is not convenient for bidirectional displacement. In addition, if the chain breaks during the tensioning process, the wheel axle and the sprocket are easy to slip, causing safety hazards. Utility Model Content

[0003] In view of the above, the utility model provides a sprocket adjustment seat, which has higher flexibility through structural optimization, can perform displacement adjustment of the three axes of XYZ, and has higher safety.

[0004] The utility model adopts the following technical scheme: a sprocket adjustment seat, including a mounting seat and a sprocket, and also including a horizontal adjustment mechanism and a lifting adjustment mechanism, the sprocket is arranged on the mounting seat through a wheel axle, the mounting seat is provided with a slide groove, the end of the wheel axle is inserted into the slide groove, the mounting seat is provided with a first adjusting bolt, the first adjusting bolt passes through the side wall of the slide groove and connects the wheel axle, the horizontal adjustment mechanism includes an adjusting plate and a second adjusting bolt, the adjusting plate is arranged at the bottom of the mounting seat, the adjusting plate is provided with a strip hole, the lifting adjustment mechanism includes a fixing plate, a clamping plate and a third adjusting bolt, the adjusting plate is arranged on the fixing plate through a connecting block, and the second adjusting bolt passes through the strip hole and is connected to the connecting block.

[0005] Furthermore, the connection block is set on the fixing plate by screws, the third adjusting bolt passes through the clamping plate and is connected to the fixing plate, and the distance between the fixing plate and the clamping plate is adjusted by the third adjusting bolt.

[0006] Furthermore, a threaded hole is provided on the connecting block, and the second adjusting bolt is connected in the threaded hole of the connecting block.

[0007] Furthermore, a blocking portion is provided at an opening at one end of the slide slot.

[0008] Furthermore, the blocking portion is in an upward hook shape.

[0009] Furthermore, retaining springs are arranged on both sides of the sprocket on the wheel axle.

[0010] Furthermore, two of the strip-shaped holes are arranged in parallel, and there are two corresponding second adjusting bolts.

[0011] The sprocket adjustment seat of the utility model has a simple structure, low cost and is easy to use. A first adjusting bolt is arranged on the mounting seat to be directly threadedly connected to the wheel axle, so that the two-way movement of the sprocket in the slide groove can be easily adjusted, which is convenient for tensioning and disassembling the chain. By arranging a horizontal adjustment mechanism and a lifting adjustment mechanism, the position of the sprocket in the vertical and horizontal directions can be manually adjusted as needed, thereby improving the overall installation adaptability. In addition, a blocking part is arranged at the end of the slide groove of the mounting seat, which can avoid the safety hazard of slipping of the wheel axle and the sprocket due to accidental breakage of the chain. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the overall structure of the sprocket adjustment seat of the utility model.

[0013] Figure 2 This is a schematic diagram of the exploded structure of the sprocket adjustment seat of the utility model. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0015] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "setting", "connection", etc. 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 an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0016] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present utility model, it should be understood that if there are terms such as "upper", "lower", "inside", "outside", etc. indicating the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description.

[0017] Reference Figure 1-Figure 2The sprocket adjustment seat of this embodiment includes a mounting seat 1, a sprocket 2, a horizontal adjustment mechanism and a lifting adjustment mechanism. The sprocket 2 is arranged on the mounting seat 1, a chain is arranged on the outer ring of the sprocket 2, and the sprocket 2 is arranged on the mounting seat 1 through the wheel axle 3. A slide groove 11 is provided on the mounting seat 1, and the end of the wheel axle 3 is inserted into the slide groove 11. At the same time, a first adjusting bolt 12 is provided on the mounting seat 1. The first adjusting bolt 12 passes through the side wall of the slide groove 11 and connects the wheel axle 3. A threaded hole 31 is provided on the wheel axle 3. The first adjusting bolt 12 cooperates with the threaded hole 31 on the wheel axle 3, and then screwing the first adjusting bolt 12 can drive the wheel axle 3 to move in the slide groove 11.

[0018] In this embodiment, the horizontal adjustment mechanism includes an adjustment plate 4 and a second adjustment bolt 5. The adjustment plate 4 is fixed to the bottom of the mounting base 1 by screws 6. A strip hole 41 is provided on the adjustment plate 4. The lifting adjustment mechanism includes a fixing plate 7, a clamping plate 8 and a third adjustment bolt 9. The adjustment plate 4 is set on the fixing plate 7 through a connecting block 10. The connecting block 10 is fixed to the fixing plate 7 by screws 6. A threaded hole is provided on the connecting block 10. The second adjustment bolt 5 passes through the strip hole 41 and is matched and connected in the threaded hole of the connecting block 10 to fasten the adjustment plate 4 to the connecting block 10. The second adjustment bolt 5 is reversely screwed to release the fixation of the adjustment plate 4 and loosen the adjustment plate 4. Then, the adjustment plate 4 can be moved, so that the position of the second adjustment bolt 5 in the strip hole 41 of the adjustment plate 4 changes. After adjusting to the desired position, the second adjustment bolt 5 is tightened again to fix the adjustment plate 4.

[0019] Preferably, two parallel strip holes 41 are provided, and two corresponding second adjustment bolts 5 are provided to increase the connection stability. In this embodiment, the mounting seat 1 can be moved and adjusted in a horizontal position perpendicular to the direction of the slide slot 11 under the drive of the horizontal adjustment mechanism, and can be adjusted in height under the drive of the lifting adjustment mechanism.

[0020] Further, the third adjusting bolt 9 passes through the clamping plate 8 and is screwed on the fixed plate 7, so that the distance between the fixed plate 7 and the clamping plate 8 can be adjusted by the third adjusting bolt 9, and then the height of the lifting adjustment mechanism on the carrier 100 can be adjusted. Specifically, the third adjusting bolt 9 is loosened to increase the distance between the fixed plate 7 and the clamping plate 8, and the fixed plate 7 is moved to drive the connecting block 10, the adjustment plate 4 and the mounting seat 1 to change the height position on the carrier 100 as a whole. After adjusting the height, the third adjusting bolt 9 is locked to fix the fixed plate 7 and the clamping plate 8 on the carrier 100, and the vertical position adjustment can be completed. The carrier 100 referred to in this embodiment is a support body of a ready-made fixed sprocket adjustment seat.

[0021] Preferably, in this embodiment, a blocking portion 13 is provided at one end opening of the chute 11. The blocking portion 13 is hook-shaped, connected to the mounting seat 1 or integrally formed with the mounting seat 1, and blocks the wheel shaft 3 and the sprocket 2 in the chute 11 from slipping out of the chute 11 due to sudden accidental slipping.

[0022] In addition, the sprocket 1 is rotatably arranged at the center of the axle 3 , and retaining springs 32 are arranged on both sides of the axle 3 to ensure the axial stability of the sprocket 2 on the axle 3 .

[0023] The present embodiment achieves chain tension adjustment by adjusting the position of one sprocket 2 relative to the other sprocket. The specific working principle is: since the wheel axle 3 is threadedly connected to the first adjusting bolt 12, screwing the first adjusting bolt 12 can move the position of the wheel axle 3 in the slide groove 11, thereby changing the distance between the two sprockets. When the sprockets are farther apart, the chain is tensioned, and when the sprockets are closer together, the chain can be easily disassembled. The structure in the present embodiment is easy to operate. At the same time, the setting of the horizontal adjustment mechanism and the lifting adjustment mechanism in the present embodiment increases the flexibility of the mounting base 1, and can achieve position adjustment of the sprocket in the three-axis direction of XYZ, with stronger adaptability.

[0024] In addition, the above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. The understanding of this specification should be based on the technical personnel in the relevant technical field. Although this specification has described the present invention in detail with reference to the above embodiments, ordinary technical personnel in the field should understand that the technical personnel in the relevant technical field can still modify or make equivalent substitutions to the present invention, and all technical solutions and improvements thereof that do not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A sprocket adjustment seat, comprising a mounting seat and a sprocket, characterized in that: It also includes a horizontal adjustment mechanism and a lifting adjustment mechanism, the sprocket is arranged on the mounting seat through a wheel axle, a slide groove is provided on the mounting seat, the end of the wheel axle is inserted into the slide groove, a first adjusting bolt is provided on the mounting seat, the first adjusting bolt passes through the side wall of the slide groove and connects the wheel axle, the horizontal adjustment mechanism includes an adjusting plate and a second adjusting bolt, the adjusting plate is arranged at the bottom of the mounting seat, a strip hole is provided on the adjusting plate, the lifting adjustment mechanism includes a fixing plate, a clamping plate and a third adjusting bolt, the adjusting plate is arranged on the fixing plate through a connecting block, and the second adjusting bolt passes through the strip hole and is connected to the connecting block.

2. The sprocket adjustment seat according to claim 1, characterized in that: The connecting block is arranged on the fixing plate by screws, the third adjusting bolt passes through the clamping plate and is connected to the fixing plate, and the distance between the fixing plate and the clamping plate is adjusted by the third adjusting bolt.

3. The sprocket adjustment seat according to claim 1, characterized in that: The connection block is provided with a threaded hole, and the second adjusting bolt is connected in the threaded hole of the connection block.

4. The sprocket adjustment seat according to claim 1, characterized in that: A blocking portion is arranged at an opening at one end of the slide groove.

5. The sprocket adjustment seat according to claim 4, characterized in that: The blocking portion is in an upward hook shape.

6. The sprocket adjustment seat according to claim 1, characterized in that: Circlips are arranged on both sides of the sprocket on the wheel shaft.

7. The sprocket adjustment seat according to claim 1, characterized in that: The strip-shaped holes are arranged in two parallel positions, and there are two corresponding second adjusting bolts.

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