Combined gear

Abstract

The utility model relates to the technical field of gears, and discloses a combined gear which comprises a gear body and an auxiliary mechanism, the auxiliary mechanism is arranged in the gear body and used for adjusting service conditions of the gear, the auxiliary mechanism comprises a circular groove formed in the bottom end of the gear body, and a connecting ring is arranged in the circular groove in a penetrating mode. And a first positioning mechanism is arranged between the connecting ring and the gear main body. By means of the arrangement of the circular groove and the connecting ring, when the connecting ring is inserted into the circular groove, the gear can be sleeved on the main shaft matched with the inner wall of the connecting ring for use, and when the connecting ring is taken out of the circular groove, the gear can be sleeved on the main shaft matched with the inner wall of the circular groove for use. Therefore, the gear can be suitable for main shafts of different sizes, and the applicability of the gear is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gears, in particular to a combined gear. Background Art

[0002] Gears are a common mechanical transmission device with teeth on the rim that can continuously transmit motion and power to the core.

[0003] The gear is provided with a circular hole in the middle thereof, and a limiting groove is provided in the circular hole. The gear is sleeved on the external main shaft through the circular hole, and the limiting piece on the main shaft is stuck in the limiting groove in the circular hole, so that the gear can be driven to rotate by rotating the external main shaft to work.

[0004] However, the sizes of circular holes on gears are fixed, which means that a gear can only be used with a spindle of one size. When the spindle size does not match, a new gear needs to be replaced, which reduces the applicability of the gear. For this reason, we propose a combined gear. Utility Model Content

[0005] The purpose of the utility model is to provide a combined gear to solve the problems raised in the above background technology.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a combined gear, comprising:

[0007] Gear body;

[0008] An auxiliary mechanism is arranged inside the gear body and is used to adjust the use conditions of the gear. The auxiliary mechanism includes a circular groove opened at the bottom end of the gear body, a connecting ring is inserted inside the circular groove, and a first positioning mechanism is arranged between the connecting ring and the gear body.

[0009] Preferably, a first positioning groove is formed on the inner wall of the connecting ring, and a second positioning mechanism is provided between the connecting ring and the gear body.

[0010] Preferably, the second positioning mechanism comprises a positioning block fixedly connected to the outer wall of the connecting ring, the inner wall of the circular groove is provided with a second positioning groove, and the outer wall of the positioning block is movably interlaced with the inner wall of the second positioning groove.

[0011] Preferably, the first positioning mechanism includes a positioning hole opened on the inner wall of the circular groove, the inner wall of the positioning hole is movably connected with a positioning rod, the outer wall of the connecting ring is opened with a movable hole, the outer wall of the positioning rod is movably connected with the inner wall of the movable hole, and a spring is arranged between the positioning rod and the inner wall of the movable hole.

[0012] Preferably, a connecting groove is provided at the top of the connecting ring, the interior of the connecting groove is connected to the interior of the movable hole, a connecting block is slidably provided on the inner wall of the connecting groove, and the bottom end of the connecting block is fixedly connected to the top of the positioning rod.

[0013] Preferably, the inner wall of the connecting groove is provided with a slot, the inner wall of the slot is provided with a rotating hole, the inner wall of the rotating hole is rotatably connected to a rotating shaft, and the outer wall of the rotating shaft is fixedly connected to a limiting rod.

[0014] Preferably, an annular groove is provided on the inner wall of the rotating hole, a torsion spring is arranged inside the annular groove, the torsion spring is sleeved on the outer wall of the rotating shaft, one end of the torsion spring is connected to the inner wall of the annular groove, and the other end of the torsion spring is connected to the outer wall of the rotating shaft.

[0015] Technical effects and advantages of the utility model:

[0016] The utility model utilizes the arrangement of the circular groove and the connecting ring, and when the connecting ring is inserted into the circular groove, the gear can be sleeved on the main shaft matching the inner wall of the connecting ring for use; when the connecting ring is taken out of the circular groove, the gear can be sleeved on the main shaft matching the inner wall of the circular groove for use, thereby making the gear suitable for main shafts of different sizes, thereby improving the applicability of the gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0018] Figure 2 It is a front sectional structural schematic diagram of the connecting ring of the utility model.

[0019] Figure 3 For this utility model Figure 2 Schematic diagram of the local enlarged structure at A.

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the limit rod of the utility model in a top view.

[0021] In the figure: 101, gear body; 201, circular groove; 202, connecting ring; 301, first positioning groove; 302, second positioning groove; 303, positioning block; 401, positioning hole; 402, positioning rod; 403, movable hole; 501, spring; 502, connecting groove; 503, connecting block; 601, slot; 602, rotating hole; 603, rotating shaft; 604, limiting rod; 701, annular groove; 702, torsion spring. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] The utility model provides Figure 1-4 The combined gear shown includes a gear body 101 and an auxiliary mechanism. The outer wall of the gear body 101 is provided with teeth for meshing with other gears for transmission.

[0024] In a preferred embodiment, an auxiliary mechanism is arranged inside the gear body 101 to adjust the use conditions of the gear. The auxiliary mechanism includes a circular groove 201 opened at the bottom end of the gear body 101, and a connecting ring 202 is interspersed inside the circular groove 201. A first positioning mechanism is arranged between the connecting ring 202 and the gear body 101. Through the arrangement of the circular groove 201 and the connecting ring 202, when the connecting ring 202 is inserted into the circular groove 201, the gear can be sleeved on a main shaft matching the inner wall of the connecting ring 202 for use. When the connecting ring 202 is taken out of the circular groove 201, the gear can be sleeved on a main shaft matching the inner wall of the circular groove 201 for use, so that the gear can be suitable for main shafts of different sizes, thereby improving the applicability of the gear.

[0025] Among them, a first positioning groove 301 is opened on the inner wall of the connecting ring 202, and a second positioning mechanism is arranged between the connecting ring 202 and the gear body 101. When the connecting ring 202 is inserted into the circular groove 201, it is positioned by the first positioning mechanism and the second positioning mechanism, and then the gear body 101 is sleeved on the main shaft through the inner wall of the connecting ring 202, and the limiting piece on the main shaft is stuck in the first positioning groove 301, so that the gear can be rotated by rotating the main shaft to work.

[0026] Preferably, the second positioning mechanism includes a positioning block 303 fixedly connected to the outer wall of the connecting ring 202, and the inner wall of the circular groove 201 is provided with a second positioning groove 302. The outer wall of the positioning block 303 is movably connected with the inner wall of the second positioning groove 302. After the connecting ring 202 is inserted into the circular groove 201, the positioning block 303 is also inserted into the second positioning groove 302 at the same time, so that the external main shaft can drive the connecting ring 202 to rotate, and the connecting ring 202 can also drive the gear body 101 to rotate, thereby ensuring the stable operation of the gear. When the connecting ring 202 is taken out of the circular groove 201, the external main shaft is inserted into the circular groove 201, and the limit piece on the main shaft is stuck in the second positioning groove 302, so that the gear body 101 can be driven to rotate by the rotation of the main shaft.

[0027] Preferably, the first positioning mechanism includes a positioning hole 401 opened on the inner wall of the circular groove 201, the inner wall of the positioning hole 401 is movably connected with a positioning rod 402, the outer wall of the connecting ring 202 is opened with a movable hole 403, the outer wall of the positioning rod 402 is movably connected with the inner wall of the movable hole 403, and a spring 501 is arranged between the positioning rod 402 and the inner wall of the movable hole 403. After the connecting ring 202 is inserted into the circular groove 201, and the positioning block 303 is inserted into the second positioning groove 302, the positioning rod 402 is aligned with the positioning hole 401 at this time, and the positioning rod 402 can be inserted into the positioning hole 401 under the elastic action of the spring 501, so that the connecting ring 202 and the gear body 101 can be positioned in the longitudinal direction, so that the auxiliary mechanism can work stably.

[0028] Among them, a connecting groove 502 is opened at the top of the connecting ring 202, the interior of the connecting groove 502 is connected with the interior of the movable hole 403, and a connecting block 503 is slidably provided on the inner wall of the connecting groove 502. The bottom end of the connecting block 503 is fixedly connected to the top of the positioning rod 402. By moving the connecting block 503 in the connecting groove 502, the positioning rod 402 can be driven to move, thereby improving the convenience of the operation of the first positioning mechanism.

[0029] Furthermore, a slot 601 is provided on the inner wall of the connecting groove 502, a rotating hole 602 is provided on the inner wall of the slot 601, the inner wall of the rotating hole 602 is rotatably connected to a rotating shaft 603, and a limiting rod 604 is fixedly connected to the outer wall of the rotating shaft 603. The limiting rod 604 is rotated around the rotating shaft 603 to a horizontal state, so that the limiting rod 604 can support the connecting block 503, making the connecting block 503 unable to move, thereby avoiding the situation where the first positioning mechanism is automatically released from positioning, thereby improving the working stability of the first positioning mechanism.

[0030] Furthermore, an annular groove 701 is provided on the inner wall of the rotating hole 602, and a torsion spring 702 is arranged inside the annular groove 701. The torsion spring 702 is sleeved on the outer wall of the rotating shaft 603, and one end of the torsion spring 702 is connected to the inner wall of the annular groove 701, and the other end of the torsion spring 702 is connected to the outer wall of the rotating shaft 603. Through the elastic action of the torsion spring 702, the limiting rod 604 always has a tendency to rotate downward, so that the limiting rod 604 can always press against the connecting block 503 without being subjected to a large external force, thereby improving the working stability of the limiting rod 604. When it is necessary to release the positioning of the first positioning mechanism, the limiting rod 604 is rotated upward to move the connecting block 503 in the connecting groove 502, so that the positioning rod 402 moves and separates from the positioning hole 401.

[0031] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined gear, It is characterized in that include: Gear body (101); An auxiliary mechanism is arranged inside the gear body (101) and is used to adjust the use condition of the gear. The auxiliary mechanism comprises a circular groove (201) opened at the bottom end of the gear body (101), a connecting ring (202) is inserted into the circular groove (201), and a first positioning mechanism is arranged between the connecting ring (202) and the gear body (101).

2. A combined gear according to claim 1, It is characterized in that A first positioning groove (301) is provided on the inner wall of the connecting ring (202), and a second positioning mechanism is provided between the connecting ring (202) and the gear body (101).

3. A combined gear according to claim 2, It is characterized in that The second positioning mechanism comprises a positioning block (303) fixedly connected to the outer wall of the connecting ring (202); the inner wall of the circular groove (201) is provided with a second positioning groove (302); the outer wall of the positioning block (303) is movably connected to the inner wall of the second positioning groove (302).

4. A combined gear according to claim 1, It is characterized in that The first positioning mechanism comprises a positioning hole (401) formed on the inner wall of the circular groove (201); a positioning rod (402) is movably connected to the inner wall of the positioning hole (401); a movable hole (403) is formed on the outer wall of the connecting ring (202); the outer wall of the positioning rod (402) is movably connected to the inner wall of the movable hole (403); and a spring (501) is provided between the positioning rod (402) and the inner wall of the movable hole (403).

5. A combined gear according to claim 4, It is characterized in that A connecting groove (502) is provided at the top of the connecting ring (202), the interior of the connecting groove (502) is connected to the interior of the movable hole (403), a connecting block (503) is slidably provided on the inner wall of the connecting groove (502), and the bottom end of the connecting block (503) is fixedly connected to the top end of the positioning rod (402).

6. A combined gear according to claim 5, It is characterized in that The inner wall of the connection groove (502) is provided with a slot (601), the inner wall of the slot (601) is provided with a rotating hole (602), the inner wall of the rotating hole (602) is rotatably connected to a rotating shaft (603), and the outer wall of the rotating shaft (603) is fixedly connected to a limiting rod (604).

7. A combined gear according to claim 6, It is characterized in that An annular groove (701) is formed on the inner wall of the rotating hole (602), a torsion spring (702) is arranged inside the annular groove (701), and the torsion spring (702) is sleeved on the outer wall of the rotating shaft (603), one end of the torsion spring (702) is connected to the inner wall of the annular groove (701), and the other end of the torsion spring (702) is connected to the outer wall of the rotating shaft (603).

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