High-stability spiral bevel gear

Abstract

The utility model provides a high stability spiral bevel gear. High stability spiral bevel gear, the upper surface middle part of gear main part is passed through and is established with the through -hole of taper, the inner surface of through -hole is established with a plurality of obliquely arranged slide groove. The high stability spiral bevel gear provided by the utility model, through setting through -hole, a plurality of clamping blocks and slide piece, when installing, after the gear is sleeved on the outer surface of the shaft, the plurality of bolts outside the slide piece is rotated, along with the rotation of the bolt, the slide piece will be close to the gear main body, in this process, the slide piece will drive a plurality of clamping blocks to move to the upper part of the gear main body, a plurality of clamping blocks will be close to each other under the action of a plurality of inclined slide grooves, until the inner surface of a plurality of clamping blocks and the outer surface of the shaft are closely combined, the gear is stably installed and fixed on the outer surface of the shaft, when needing maintenance, the gear can be disassembled from the outer surface of the shaft by reversely rotating the plurality of bolts, the maintenance efficiency of equipment is improved.

Description

Technical Field

[0001] This utility model relates to the field of bevel gear structures, and in particular to a highly stable spiral bevel gear. Background Technology

[0002] Spiral bevel gears, also known as spiral conical gears, are commonly used for motion and power transmission between two intersecting shafts. The teeth of a bevel gear are distributed on the surface of a cone, with the tooth profile gradually decreasing from the large end to the small end.

[0003] When spiral bevel gears are installed on the shaft structure in equipment, they are usually connected by a key. This method is relatively robust. However, when maintenance is required or the gear structure needs to be replaced, it is often necessary to remove the shaft and gear from the equipment together, and then use hydraulic equipment to remove the gear for replacement. The whole process is quite inconvenient.

[0004] Therefore, it is necessary to provide a highly stable spiral bevel gear to solve the above-mentioned technical problems. Utility Model Content

[0005] This invention provides a highly stable spiral bevel gear, which solves the problem that current spiral bevel gears often require the shaft and gear to be removed from the equipment together when maintenance or replacement is needed, and then the gear is removed and replaced using hydraulic equipment, which is quite inconvenient.

[0006] To solve the above-mentioned technical problems, this utility model provides a high-stability spiral bevel gear, including a gear body. A tapered through hole is formed in the middle of the upper surface of the gear body. Multiple inclined sliding grooves are formed on the inner surface of the through hole. First sliding strips are slidably connected to the interior of each of the multiple sliding grooves along their length direction. A semi-circular clamping block with an outer surface contour that matches the inner contour of the through hole is fixedly connected to the inner surface of each of the multiple first sliding strips. The multiple clamping blocks can be combined to form a ring structure. An extension ring is fixedly connected to the outer edge of the lower surface of the gear body. A sliding plate is slidably connected to the interior of the extension ring along the axial direction of the gear body. A second sliding strip is fixedly connected to the middle of the lower surface of each of the multiple clamping blocks along a radial direction of the gear body. Multiple guide rails corresponding to the multiple second sliding strips are fixedly connected to the upper surface of the sliding plate. The multiple clamping blocks are slidably connected to the multiple guide rails through the multiple second sliding strips.

[0007] Preferably, the lower surface of the sliding plate has a plurality of bolt holes that extend vertically through it, and the lower surface of the gear body has a plurality of threaded holes that correspond to the plurality of bolt holes. The sliding plate is detachably mounted to the lower part of the gear body by a plurality of bolts.

[0008] Preferably, a device hole is vertically through the middle of the lower surface of the sliding piece.

[0009] Preferably, the lower surface of the extension ring is provided with a plurality of guide grooves in a vertical direction, and the outer surface of the sliding piece is fixedly connected with a plurality of protrusions corresponding to the plurality of guide grooves.

[0010] Preferably, the inner diameter of the annular structure formed by merging the multiple clamping blocks is smaller than the inner diameter of the through hole and the device hole.

[0011] Preferably, the central axes of the gear body, the through hole, the annular structure, the sliding plate, and the device hole are located on the same straight line.

[0012] Compared with related technologies, the high-stability spiral bevel gear provided by this utility model has the following beneficial effects: This utility model provides a high-stability spiral bevel gear, which, by setting through holes, multiple clamping blocks and sliding plates, allows the gear to be installed by fitting it onto the outer surface of the shaft. Then, by rotating multiple bolts on the outside of the sliding plate, the sliding plate moves closer to the gear body. During this process, the sliding plate drives multiple clamping blocks to move upwards towards the gear body. Under the action of multiple inclined sliding grooves, the clamping blocks move closer together until their inner surfaces are tightly fitted against the outer surface of the shaft. Under the action of friction, the gear can be stably installed and fixed to the outer surface of the shaft. When maintenance is required, simply rotating the bolts in the opposite direction allows the gear to be removed from the outer surface of the shaft without disassembling the shaft itself, thus improving equipment maintenance efficiency. Attached Figure Description

[0013] Figure 1 An exploded view of the high-stability spiral bevel gear provided by this utility model;

[0014] Figure 2 for Figure 1 The diagram shows the external structural design of a highly stable spiral bevel gear.

[0015] Figure 3 for Figure 1 The diagram shows a half-section of a high-stability spiral bevel gear.

[0016] The following are the labels in the diagram: 1. Gear body, 2. Through hole, 3. Slide groove, 4. First slide bar, 5. Clamping block, 6. Second slide bar, 7. Extension ring, 8. Sliding plate, 9. Guide rail, 10. Bolt hole, 11. Threaded hole, 12. Bolt, 13. Device hole. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0018] Please refer to the following: Figure 1-3 The high-stability spiral bevel gear includes a gear body 1. A tapered through hole 2 is formed in the middle of the upper surface of the gear body 1. Multiple inclined sliding grooves 3 are formed on the inner surface of the through hole 2. First sliding strips 4 are slidably connected to the interior of the multiple sliding grooves 3 along their length directions. A semi-circular clamping block 5 with an outer surface contour that matches the inner contour of the through hole 2 is fixedly connected to the inner surface of each of the multiple first sliding strips 4. The multiple clamping blocks 5 can be combined to form a ring structure. An extension ring 7 is fixedly connected to the outer edge of the lower surface of the gear body 1. A sliding plate 8 is slidably connected to the interior of the extension ring 7 along the axial direction of the gear body 1. A second sliding strip 6 is fixedly connected to the middle of the lower surface of each of the multiple clamping blocks 5 along a radial direction of the gear body 1. Multiple guide rails 9 corresponding to the multiple second sliding strips 6 are fixedly connected to the upper surface of the sliding plate 8. The multiple clamping blocks 5 are slidably connected to the multiple guide rails 9 through the multiple second sliding strips 6.

[0019] The multiple clamping blocks 5 in the device are restricted by the slide groove 3 and multiple first slide bars 4. When an external force pushes them to move along the axial direction of the gear body 1, the clamping blocks 5 will move along the inclined direction of the slide groove 3. The multiple clamping blocks 5 will move closer to each other or separate from each other. The sliding plate 8 can move along the axial direction of the gear body 1. Since it is equipped with multiple guide rails 9, it will drive the multiple clamping blocks 5 to move in the same direction during its movement. Therefore, by controlling the movement of the sliding plate 8, the multiple clamping blocks 5 can be controlled to move closer to each other or separate.

[0020] The cross-sections of the slide groove 3, the first slide bar 4, the second slide bar 6, and the guide rail 9 are all I-shaped. This structure can prevent the two structures from separating from each other.

[0021] The lower surface of the sliding plate 8 has a plurality of bolt holes 10 vertically extending through it, and the lower surface of the gear body 1 has a plurality of threaded holes 11 corresponding to the plurality of bolt holes 10. The sliding plate 8 is detachably mounted to the lower part of the gear body 1 by a plurality of bolts 12.

[0022] A device hole 13 is vertically opened in the middle of the lower surface of the sliding piece 8.

[0023] The central axes of the gear body 1, through hole 2, annular structure, sliding plate 8 and device hole 13 are located on the same straight line.

[0024] The inner diameter of the annular structure formed by the combination of multiple clamping blocks 5 is smaller than the inner diameter of the through hole 2 and the device hole 13.

[0025] When using this device, first rotate multiple bolts 12 to increase the distance between the sliding plate 8 and the gear body 1. At this time, multiple clamping blocks 5 will be driven and separated from each other. Then, the device is placed on the shaft and the position is determined. After the position is determined, rotate multiple bolts 12 in the opposite direction to make the sliding plate 8 approach the gear body 1. During this process, multiple clamping blocks 5 will also move closer to each other until the inner surface of multiple clamping blocks 5 is tightly attached to the outer surface of the shaft. At this time, the fixed installation of the device can be completed. A keyway can be opened on the inner surface of one of the clamping blocks 5. During installation, it is aligned with the key on the outer surface of the shaft to ensure that the device can rotate synchronously during the rotation of the shaft after installation, and there will be no slippage problem.

[0026] The lower surface of the extension ring 7 is provided with multiple guide grooves, and the outer surface of the sliding piece 8 is fixedly connected with multiple protrusions that correspond to the multiple guide grooves.

[0027] Multiple protruding teeth and guide grooves serve to guide and limit the movement, ensuring that the sliding plate 8 does not tilt inside the extension ring 7, thus keeping it parallel to the gear body 1 at all times.

[0028] The working principle of the high-stability spiral bevel gear provided by this utility model is as follows: When using the device, first rotate multiple bolts 12 to increase the distance between the sliding plate 8 and the gear body 1. At this time, multiple clamping blocks 5 will also be driven and separated from each other. Then, the device is put on the shaft and the position is determined. After the position is determined, rotate multiple bolts 12 in the opposite direction to make the sliding plate 8 approach the gear body 1. During this process, multiple clamping blocks 5 will also move closer to each other until the inner surface of multiple clamping blocks 5 is tightly attached to the outer surface of the shaft. At this time, the fixed installation of the device can be completed. A keyway can be opened on the inner surface of one of the clamping blocks 5. During installation, it is aligned with the key on the outer surface of the shaft to ensure that the device can rotate synchronously during the rotation of the shaft after installation, and there will be no slippage problem.

[0029] Compared with related technologies, the high-stability spiral bevel gear provided by this utility model has the following beneficial effects: This high-stability spiral bevel gear, by setting through holes 2, multiple clamping blocks 5, and sliding plates 8, allows for easy installation. After the gear is fitted onto the outer surface of the shaft, multiple bolts 12 on the outside of the sliding plate 8 are rotated. As the bolts 12 rotate, the sliding plate 8 moves closer to the gear body 1. During this process, the sliding plate 8 drives the multiple clamping blocks 5 to move upwards towards the gear body 1. Under the action of multiple inclined sliding grooves 3, the multiple clamping blocks 5 move closer together until their inner surfaces are tightly fitted with the outer surface of the shaft. Under the action of friction, the gear can be stably installed and fixed on the outer surface of the shaft. When maintenance is required, the gear can be removed from the outer surface of the shaft by rotating the multiple bolts 12 in the opposite direction, without needing to disassemble the shaft as well, thus improving the maintenance efficiency of the equipment.

[0030] The above are merely embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A high-stability spiral bevel gear, characterized in that: The gear body (1) includes a gear body (1) with a conical through hole (2) extending through the center of its upper surface. Multiple inclined sliding grooves (3) are formed on the inner surface of the through hole (2). First sliding strips (4) are slidably connected to the interior of each of the multiple sliding grooves (3) along their length. A semi-circular clamping block (5) with an outer surface contour matching the inner contour of the through hole (2) is fixedly connected to the inner surface of each of the multiple first sliding strips (4). The multiple clamping blocks (5) can be combined to form a ring structure. The gear body (1) has... An extension ring (7) is fixedly connected to the outer edge of the lower surface. A sliding plate (8) is slidably connected inside the extension ring (7) along the axial direction of the gear body (1). A second slide bar (6) is fixedly connected to the middle of the lower surface of each of the multiple clamping blocks (5) along a radial direction of the gear body (1). A plurality of guide rails (9) corresponding to the plurality of second slide bars (6) are fixedly connected to the upper surface of the sliding plate (8). The multiple clamping blocks (5) are slidably connected to the plurality of guide rails (9) through the plurality of second slide bars (6).

2. The high-stability spiral bevel gear according to claim 1, characterized in that, The lower surface of the sliding plate (8) has a plurality of bolt holes (10) that extend vertically through it. The lower surface of the gear body (1) has a plurality of threaded holes (11) that correspond to the plurality of bolt holes (10) respectively. The sliding plate (8) is detachably installed on the lower part of the gear body (1) by a plurality of bolts (12).

3. The high-stability spiral bevel gear according to claim 1, characterized in that, The lower surface of the sliding piece (8) has a vertical through hole (13) in the middle.

4. The high-stability spiral bevel gear according to claim 1, characterized in that, The lower surface of the extension ring (7) is provided with a plurality of guide grooves in a vertical direction, and the outer surface of the sliding piece (8) is fixedly connected with a plurality of protrusions that correspond to the plurality of guide grooves respectively.

5. The high-stability spiral bevel gear according to claim 3, characterized in that, The inner diameter of the annular structure formed by the combination of multiple clamping blocks (5) is smaller than the inner diameter of the through hole (2) and the device hole (13).

6. The high-stability spiral bevel gear according to claim 3, characterized in that, The central axes of the gear body (1), the through hole (2), the annular structure, the sliding plate (8), and the device hole (13) are located on the same straight line.

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