Protective equipment for gear installation

Abstract

The utility model discloses gear installation protection equipment which comprises a gear shaft rod, a fixed sleeve is fixedly arranged on one side in the gear shaft rod, an output shaft sleeve is fixedly arranged in the fixed sleeve in a sleeved mode, and a side porous sound absorption cotton block is fixedly arranged on the side in a noise reduction gear disc. The noise reduction gear disc and the output shaft sleeve which are matched with the gear are arranged, the noise reduction gear disc and the output shaft sleeve are fixed, installation is easy and convenient, the noise reduction gear disc is arranged on the outer side of the gear, noise reduction and sound absorption are conducted on the gear through the inner porous sound absorption cotton block and the side porous sound absorption cotton block in the noise reduction gear disc, and noise reduction is achieved. The outer side of the noise reduction gear disc is covered with the two outer sound insulation covers, the noise reduction treatment effect is enhanced, the dustproof effect is achieved, and compared with an existing noise reduction structure which is directly and integrally arranged, the noise reduction structure is low in use cost, convenient to install, high in pertinence and good in noise reduction effect.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, in particular to protective equipment for gear installation. Background Art

[0002] Application No. 201520096495.2 discloses a noise reduction device at the front end of an engine, which includes a gear chamber, a gasket and a tightening bolt, wherein a noise reduction device is provided at the front end of the gear chamber, and the noise reduction device is a sound insulation sponge fixed by a plastic cover plate, and the shapes of the sound insulation sponge and the plastic cover plate are matched with the gear chamber cover. The beneficial effects of the utility model are as follows: by installing a noise reduction device composed of a sound insulation sponge and a plastic cover plate at the front end of the gear chamber of the engine, the problem of large noise generated at the front end of the gear chamber, which causes large noise in the entire engine, is solved; and the utility model has a simple structure, is easy to install and use, is easy to manufacture, and has a low production cost.

[0003] The above-mentioned noise reduction devices disclosed all provide noise reduction treatment by setting a noise reduction plate with an integral structure with the engine on the inner wall of the engine case. First, the noise reduction effect is limited. Second, the replaceability is poor, which will also increase the manufacturing cost of the entire engine case, and needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to provide a protective device for gear installation to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The protective equipment for gear installation includes a gear shaft, a fixed sleeve, an output shaft sleeve, a noise reduction gear plate, a limit rod, an inner porous sound-absorbing cotton block, an outer sound insulation cover and a locking rod, wherein the inner fixed sleeve of the fixed sleeve is provided with an output shaft sleeve, one end of the output shaft sleeve is fixedly connected to the noise reduction gear plate, an inner porous sound-absorbing cotton block is fixedly arranged inside the noise reduction gear plate, a side porous sound-absorbing cotton block is fixedly arranged inside the noise reduction gear plate, a gear body is fixedly installed inside the noise reduction gear plate, a gear shaft is fixedly arranged at the axis center of the gear body, and one end of the gear shaft passes through a bearing mounting groove and is placed inside the output shaft sleeve.

[0007] Preferably, the top and bottom ends of the fixed sleeve are provided with limiting grooves, and the top and bottom ends of the output shaft sleeve are provided with limiting rods that cooperate with the limiting grooves.

[0008] Preferably, a threaded end is provided at the top of the limiting rod, and a locking nut is threadedly sleeved on the top of the limiting rod through the threaded end.

[0009] Preferably, a bearing installation groove is fixedly opened in the middle of the noise reduction gear plate, and the bearing installation groove is communicated with the interior of the output shaft sleeve.

[0010] Preferably, the outer hinge of the noise reduction gear plate has two outer sound insulation covers, and one side of the two outer sound insulation covers is provided with an arc-shaped port.

[0011] Preferably, a locking rod is threadedly connected to the side of the outer sound insulation cover, and a locking hole cooperating with the locking rod is opened on the side of the noise reduction gear plate.

[0012] Technical effects and advantages of the utility model:

[0013] The present application provides a noise reduction gear plate and an output shaft sleeve that cooperate with the gear, and the output shaft sleeve is sleeved inside the fixed sleeve, and then the two limit rods on the outside of the output shaft sleeve are clamped in the limit groove of the fixed sleeve, so as to fix the noise reduction gear plate and the output shaft sleeve. The installation is simple and convenient. The noise reduction gear plate is arranged on the outside of the gear, and the gear is subjected to noise reduction and sound absorption treatment through the internal porous sound-absorbing cotton block and the side porous sound-absorbing cotton block. The outer side of the noise reduction gear plate is covered by two external sound insulation covers, which not only enhances the noise reduction treatment effect, but also has a dust-proof effect. Compared with the existing noise reduction structure that is directly integrated, the present application has low use cost and convenient installation. At the same time, it is highly targeted and has a good noise reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 The utility model is a schematic diagram of the internal structure of the noise reduction gear plate.

[0016] Figure 3 It is a schematic diagram of the structure of the external soundproof cover of the utility model.

[0017] In the figure: 1. gear shaft; 2. fixing sleeve; 3. output shaft sleeve; 4. noise reduction gear plate; 5. limit rod; 6. inner porous sound-absorbing cotton block; 7. side porous sound-absorbing cotton block; 8. bearing mounting groove; 9. locking hole; 10. gear body; 11. outer sound insulation cover; 12. locking rod; 13. arc port; 14. limit groove. DETAILED DESCRIPTION

[0018] 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.

[0019] The utility model provides Figure 1-3 The gear installation protective device shown includes a gear shaft 1, a fixed sleeve 2, an output shaft sleeve 3, a noise reduction gear plate 4, a limit rod 5, an inner porous sound-absorbing cotton block 6, an outer sound insulation cover 11 and a locking rod 12. The inner fixed sleeve of the fixed sleeve 2 is provided with an output shaft sleeve 3, one end of the output shaft sleeve 3 is fixedly connected to the noise reduction gear plate 4, the inner part of the noise reduction gear plate 4 is fixedly provided with an inner porous sound-absorbing cotton block 6, the side of the noise reduction gear plate 4 is fixedly provided with a side porous sound-absorbing cotton block 7, the inner part of the noise reduction gear plate 4 is fixedly provided with a gear body 10, the gear shaft 1 is fixedly provided at the axis center of the gear body 10, and one end of the gear shaft 1 passes through the bearing mounting groove 8 and is placed inside the output shaft sleeve 3.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the protective device for gear installation of the utility model, specifically, the top and bottom ends of the fixed sleeve 2 are provided with limit grooves 14, and the top and bottom ends of the output shaft sleeve 3 are provided with limit rods 5 that cooperate with the limit grooves 14. During installation, the output shaft sleeve 3 is inserted into the fixed sleeve 2, and then the two limit rods 5 are clamped in the limit grooves 14.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the protective device for gear installation of the utility model, specifically, a threaded end is provided at the top of the limit rod 5, and a locking nut is threadedly sleeved on the top of the limit rod 5 through the threaded end. After the limit rod 5 is stuck in the limit groove 14, it is locked by the locking nut, and then the output shaft sleeve 3 is fixed in the fixed sleeve 2. The output shaft sleeve 3 of the present application is a hollow structure, which mainly supports the shaft of the gear.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the protective device for gear installation of the utility model, specifically, a bearing installation groove 8 is fixedly opened in the middle of the noise reduction gear plate 4, and the bearing installation groove 8 is connected to the inside of the output shaft sleeve 3, and a bearing member is installed in the bearing installation groove 8 for movably supporting the shaft rod of the gear.

[0023] like Figure 1 , Figure 2 and Figure 3As shown, the protective device for gear installation of the utility model, specifically, the outer hinge of the noise reduction gear plate 4 has two outer sound insulation covers 11, and an arc port 13 is opened on one side of the two outer sound insulation covers 11, and the opened arc port 13 is convenient for pulling open the outer sound insulation covers 11, and when the outer sound insulation covers 11 are in the closed state and need to be further fixed, the outer sound insulation covers 11 can be fixed by rotating the outer locking rod 12 and inserting one end of the locking rod 12 into the locking hole 9.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the protective device for gear installation of the present invention is specifically, a locking rod 12 is threadedly connected to the side of the outer sound insulation cover 11, and a locking hole 9 cooperating with the locking rod 12 is opened on the side of the noise reduction gear plate 4.

[0025] The working principle of the utility model is as follows: the application provides a noise reduction gear plate 4 and an output shaft sleeve 3 that cooperate with the gear. During installation, the output shaft sleeve 3 is sleeved inside the fixed sleeve 2, and then the two limit rods 5 on the outside of the output shaft sleeve 3 are clamped in the limit groove 14 of the fixed sleeve 2, and then locked by the locking nut, and then the noise reduction gear plate 4 and the output shaft sleeve 3 are fixed. The installation is simple and convenient. The noise reduction gear plate 4 is arranged on the outside of the gear, and the gear is noise-reduced and sound-absorbed by the inner porous sound-absorbing cotton block 6 and the side porous sound-absorbing cotton block 7 inside the noise reduction gear plate 4. The inner porous sound-absorbing cotton block 6 and the side porous sound-absorbing cotton block 7 are both existing common noise reduction materials. The outer side of the noise reduction gear plate 4 is covered by two outer sound insulation covers 11, which not only enhances the noise reduction effect, but also makes the application also have a dustproof effect. Compared with the existing noise reduction structure directly integrated with the shell, the noise reduction device of the application has low use cost and convenient installation. At the same time, it has strong pertinence and good noise reduction effect.

[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A protective device for gear installation, comprising a gear shaft (1), a fixing sleeve (2), an output shaft sleeve (3), a noise reduction gear plate (4), a limit rod (5), an inner porous sound absorbing cotton block (6), an outer sound insulation cover (11) and a locking rod (12), characterized in that: An output shaft sleeve (3) is provided inside the fixed sleeve (2), one end of the output shaft sleeve (3) is fixedly connected to a noise reduction gear plate (4), an inner porous sound-absorbing cotton block (6) is fixedly provided inside the noise reduction gear plate (4), a side porous sound-absorbing cotton block (7) is fixedly provided inside the side of the noise reduction gear plate (4), a gear body (10) is fixedly installed inside the noise reduction gear plate (4), a gear shaft (1) is fixedly provided at the axis of the gear body (10), and one end of the gear shaft (1) passes through a bearing mounting groove (8) and is placed inside the output shaft sleeve (3).

2. The gear mounted protective device according to claim 1, characterized in that: The top and bottom ends of the fixed sleeve (2) are both provided with limiting grooves (14), and the top and bottom ends of the output shaft sleeve (3) are provided with limiting rods (5) that cooperate with the limiting grooves (14).

3. The gear mounted protective device according to claim 2, characterized in that: The top end of the limiting rod (5) is provided with a threaded end, and the top end of the limiting rod (5) is threadably sleeved with a locking nut through the threaded end.

4. The gear mounted protective device according to claim 1, characterized in that: A bearing installation groove (8) is fixedly provided in the middle of the noise reduction gear plate (4), and the bearing installation groove (8) is communicated with the interior of the output shaft sleeve (3).

5. The gear mounted protective device according to claim 1, characterized in that: The outer hinge of the noise reduction gear plate (4) has two outer sound insulation covers (11), and one side of the two outer sound insulation covers (11) is provided with an arc-shaped port (13).

6. The gear mounted protective device according to claim 5, characterized in that A locking rod (12) is threadedly connected to the side of the outer soundproof cover (11), and a locking hole (9) cooperating with the locking rod (12) is provided on the inner side of the noise reduction gear plate (4).

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