Worm gear convenient to disassemble and disassembling tool

Abstract

The utility model discloses a worm gear convenient to dismantle and a dismantling tool, and relates to the technical field of worm gears, a shaft hole is formed in the middle of the worm gear and used for installing a rotating shaft, annular grooves are formed in the surfaces of the two sides of the worm gear and located on the periphery of the shaft hole, the two annular grooves are arranged oppositely, and a plurality of threaded holes are formed in the annular grooves. The dismounting tool comprises a connecting ring, a fixing plate, first bolts, second bolts and telescopic pieces, the first bolts are arranged on the connecting ring and connected with the worm gear, the fixing plate is arranged at the upper end of the connecting ring, the telescopic pieces are arranged at the lower end of the fixing plate, and the second bolts are arranged in the middle of the fixing plate. And one end of the second bolt extends into the telescopic piece. Through the arrangement of the worm gear and the dismounting tool, the worm gear can be rapidly dismounted from the interior of the speed reducer, other structures of the speed reducer do not need to be dismounted, the dismounting time of the worm gear can be saved, the working efficiency is improved, and the worm gear cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of worm gears, in particular to a worm gear and a disassembly tool that is easy to disassemble. Background Art

[0002] The worm gear inner ring in the existing reducer is a solid iron ring, which makes it difficult to remove the worm gear during maintenance and rework. The worm gear must be disassembled after all other components are removed. In addition, the worm gear must be squeezed by a hydraulic cylinder during the disassembly process, which can easily damage the worm gear. Therefore, it is necessary to provide a new worm gear structure and worm gear disassembly tool. Utility Model Content

[0003] The purpose of the utility model is to provide a worm gear and a disassembly tool that are easy to disassemble, so as to solve the above technical problems.

[0004] The technical solutions adopted in this utility model are as follows:

[0005] A worm wheel that is easy to disassemble, wherein an axial hole is opened in the middle of the worm wheel for installing a rotating shaft, annular grooves are opened on the two side surfaces of the worm wheel, the annular grooves are located on the periphery of the axial hole, the two annular grooves are arranged opposite each other, and a plurality of threaded holes are opened in the annular grooves, and the threaded holes are connected to the two annular grooves.

[0006] A disassembly tool for a worm gear structure is used to disassemble the worm gear. The disassembly tool includes a connecting ring, a fixing plate, a first bolt, a second bolt and a telescopic piece. Several first bolts are provided on the connecting ring, and the first bolts are connected to the worm gear. The upper end of the connecting ring is provided with the fixing plate, and the telescopic piece is provided at the lower end of the fixing plate. The middle part of the fixing plate is provided with the second bolt, and one end of the second bolt extends into the telescopic piece.

[0007] As a further preference, it further includes support rods, and a plurality of the support rods are arranged between the connecting ring and the fixing plate.

[0008] As a further preference, the telescopic part includes a sleeve, a slider and a limit ring, the upper end of the sleeve is connected to the lower end of the fixed plate, the lower end of the sleeve is provided with a through hole, the slider is provided in the sleeve and can extend out of the through hole, and a limit ring is provided on the outer edge of the upper end of the slider.

[0009] As a further preference, a positioning hole is provided in the middle of the upper end of the slider.

[0010] As a further preference, the support rod is integrally connected to the fixing plate and the connecting ring.

[0011] As a further preference, a notch is provided on the fixing plate at a position facing the first bolt.

[0012] The above technical solution has the following advantages or beneficial effects:

[0013] In the utility model, the worm gear and the disassembly tooling are provided, so that the worm gear can be quickly disassembled from the inside of the reducer without disassembling other structures of the reducer, which can save the time of disassembling the worm gear, improve work efficiency, and will not damage the worm gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the disassembly tool and the worm gear in the utility model;

[0015] Figure 2 It is a top view of the disassembly tool and the worm gear in the utility model;

[0016] Figure 3 yes Figure 2 Cross-sectional view along the AA axis;

[0017] Figure 4 This is a schematic diagram of the structure of the disassembly tool and the worm gear in the utility model;

[0018] Figure 5 yes Figure 4 Cross-sectional view along the BB direction.

[0019] In the figure: 1. Worm gear; 2. Rotating shaft; 3. Annular groove; 4. Connecting ring; 5. Fixing plate; 6. First bolt; 7. Second bolt; 8. Telescopic member; 9. Support rod; 10. Sleeve; 11. Slider; 12. Limiting ring; 13. Positioning hole; 14. Notch. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0021] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like are used to indicate positions or locations based on those shown in the accompanying drawings. These terms are intended solely to facilitate the description of this utility model and to simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used solely for descriptive purposes and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Figure 1 This is a schematic diagram of the structure of the disassembly tool and the worm gear in the utility model; Figure 2 It is a top view of the disassembly tool and the worm gear in the utility model; Figure 3 yes Figure 2 Cross-sectional view along the AA axis;

[0024] Figure 4 This is a schematic diagram of the structure of the disassembly tool and the worm gear in the utility model; Figure 5 yes Figure 4 For the cross-sectional view in the BB direction, see Figures 1 to 5 As shown in FIG, a preferred embodiment is shown, which shows a worm wheel 1 that is easy to disassemble. A shaft hole is opened in the middle of the worm wheel 1 for installing the rotating shaft 2. An annular groove 3 is opened on both sides of the worm wheel 1. The annular groove 3 is located outside the shaft hole. The two annular grooves 3 are arranged opposite each other. A plurality of threaded holes are opened in the annular groove 3, and the threaded holes are connected to the two annular grooves 3. In this embodiment, see Figure 3 As shown, the axial hole in the middle of the worm gear 1 is used to cooperate with the reduction shaft 2 and is sleeved on the shaft 2, and the annular groove 3 is opened on the outer walls on both sides of the worm gear 1. At least three threaded holes are provided in the annular groove 3 for cooperating with the first bolt 6 in the disassembly tooling.

[0025] The present invention provides a disassembly tool for a worm gear 1 on the basis of the above-mentioned embodiment, which is used to disassemble the worm gear 1. The disassembly tool includes a connecting ring 4, a fixing plate 5, a first bolt 6, a second bolt 7 and a telescopic member 8. A plurality of first bolts 6 are provided on the connecting ring 4, and the first bolts 6 are connected to the worm gear 1. A fixing plate 5 is provided at the upper end of the connecting ring 4, and a telescopic member 8 is provided at the lower end of the fixing plate 5. A second bolt 7 is provided in the middle of the fixing plate 5, and one end of the second bolt 7 extends into the telescopic member 8. During use, the connecting ring 4 can be placed in the annular groove 3, and then the first bolt 6 is tightened so that the first bolt 6 enters the threaded hole, so that the first bolt 6 connects the worm gear 1 and the connecting ring 4, and then by rotating the second bolt 7, the second bolt 7 and the fixed plate 5 are threaded together. When the second bolt 7 is tightened, the second bolt 7 will support the telescopic part 8, so that the telescopic part 8 supports the rotating shaft 2 of the reducer. By continuously tightening the second bolt 7, the telescopic part 8 will extend, and at the same time will drive the fixed plate 5 to move outward, and the fixed plate 5 will drive the connecting ring 4 to move outward, and the connecting ring 4 drives the worm gear 1 to move outward through the first bolt 6, thereby removing the worm gear 1.

[0026] Furthermore, as a preferred embodiment, it further includes support rods 9. Several support rods 9 are provided between the connecting ring 4 and the fixing plate 5. The support rods 9 are integrally connected to the fixing plate 5 and the connecting ring 4. When the fixing plate 5 moves outward, the connecting ring 4 can be pulled outward by the support rods 9.

[0027] Furthermore, as a preferred embodiment, the telescopic member 8 includes a sleeve 10, a slider 11 and a limiting ring 12. The upper end of the sleeve 10 is connected to the lower end of the fixed plate 5. The lower end of the sleeve 10 is provided with a through hole. The slider 11 is provided in the sleeve 10 and can extend out of the through hole. The outer edge of the upper end of the slider 11 is provided with a limiting ring 12. Figure 5 As shown, the slider 11 can slide up and down in the sleeve 10, and the limiting ring 12 cooperates with the lower inner wall of the sleeve 10 to prevent the slider 11 from separating from the sleeve 10, and the lower end of the second bolt 7 can support the slider 11. When the second bolt 7 moves downward, it can push the slider 11 out of the sleeve 10, so that the lower end of the slider 11 can support the rotating shaft 2. The outer diameter of the slider 11 is smaller than the outer diameter of the rotating shaft 2.

[0028] Furthermore, as a preferred embodiment, a positioning hole 13 is provided in the middle of the upper end of the slider 11. When in use, the lower end of the second bolt 7 can be inserted into the positioning hole 13, making the second bolt 7 more stable when moving downward.

[0029] Furthermore, as a preferred embodiment, a notch 14 is provided on the fixing plate 5 at a position opposite to the first bolt 6, which facilitates the installation of the first bolt 6 and also facilitates observation of whether the threaded hole on the connecting ring 4 is aligned with the threaded hole on the worm gear 1. When the threaded hole on the connecting ring 4 is aligned with the threaded hole on the worm gear 1, the first bolt 6 is installed and the first bolt 6 can be removed from the connecting ring 4.

[0030] The above description is only a preferred embodiment of the present invention and does not limit the implementation method and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A worm gear that is easy to disassemble, characterized in that: An axial hole is provided in the middle of the worm wheel for installing a rotating shaft. Annular grooves are provided on both side surfaces of the worm wheel. The annular grooves are located on the periphery of the axial hole. The two annular grooves are arranged opposite each other. Several threaded holes are provided in the annular grooves, and the threaded holes are connected to the two annular grooves.

2. A worm gear disassembly tool for disassembling the worm gear according to claim 1, characterized in that: The disassembly tool includes a connecting ring, a fixing plate, a first bolt, a second bolt and a telescopic piece. Several first bolts are provided on the connecting ring, and the first bolts are connected to the worm gear. The upper end of the connecting ring is provided with the fixing plate, and the telescopic piece is provided at the lower end of the fixing plate. The second bolt is provided in the middle of the fixing plate, and one end of the second bolt extends into the telescopic piece.

3. The worm gear disassembly tool according to claim 2, characterized in that: It also includes support rods, and a plurality of the support rods are arranged between the connecting ring and the fixing plate.

4. The worm gear disassembly tool according to claim 2, characterized in that: The telescopic part includes a sleeve, a slider and a limit ring. The upper end of the sleeve is connected to the lower end of the fixed plate. The lower end of the sleeve is provided with a through hole. The slider is arranged in the sleeve and can extend out of the through hole. The upper outer edge of the slider is provided with a limit ring.

5. The worm gear disassembly tool according to claim 4, characterized in that: A positioning hole is provided in the middle of the upper end of the sliding block.

6. The worm gear disassembly tool according to claim 3, characterized in that: The support rod is integrally connected to the fixing plate and the connecting ring.

7. The worm gear disassembly tool according to claim 2, characterized in that: A notch is provided on the fixing plate at a position facing the first bolt.

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