CN216643043U

CN216643043U - Noise reduction type gearbox

Info

Publication number: CN216643043U
Application number: CN202123205975.2U
Authority: CN
Inventors: 周丽杰; 王越
Original assignee: Harbin University of Science and Technology
Current assignee: Harbin University of Science and Technology
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-05-31
Anticipated expiration: 2031-12-20

Abstract

The utility model discloses a noise reduction type gearbox, which comprises a placing seat and a gearbox body, wherein a protective shell is fixedly arranged at the upper end of the placing seat, a mounting groove for assembling the gearbox body is arranged in the protective shell, an operation opening is formed in one side of the protective shell, an opening communicated with the mounting groove is formed in the other side of the protective shell, an annular insertion groove is formed in the inner wall of the protective shell, which is positioned on the outer side of the mounting groove, the mounting groove and the insertion groove are communicated through a plurality of groups of silencing holes, a noise reduction mechanism is movably inserted in the insertion groove, the noise reduction mechanism is sequentially provided with sound absorption cotton, a noise reduction plate and a vacuum layer from inside to outside, and the other side of the protective shell is also provided with a sealed access cover in a butt joint mode. The gearbox is simple and reasonable in overall structure arrangement, the noise reduction mechanism is sleeved and arranged on the outer side of the gearbox body in a plugging installation mode to perform noise reduction treatment, a good noise reduction effect is achieved, meanwhile, the subsequent overhaul and maintenance are facilitated, and the gearbox is worthy of being popularized and used in the existing market.

Description

Noise reduction type gearbox

Technical Field

The utility model relates to the field of vehicle accessories, in particular to a noise reduction type gearbox.

Background

As is well known, a gearbox is a gearbox that changes the transmission ratio and the direction of motion. Between the clutch and the central transmission. The main functions are as follows: changing the driving force and the running speed (shifting) of the vehicle with the engine speed and the torque unchanged; the vehicle can run in reverse (reverse); the engine may be parked without stalling (neutral). According to the transmission type, the gear type gear box can be divided into a double-shaft type, a three-shaft type and a combined type. At present, chinese patent of application number cn201820362642.x discloses a type of making an uproar gearbox falls, including the gearbox body, the gear adjusting lever, the gear box, small-size radiator fan, the cotton layer of amortization, conical installed part, the mounting panel, shock attenuation board and base, gearbox body one side connection gear box, gearbox body periphery is equipped with the cotton layer of amortization, cotton layer one side of amortization is through mounting bracket installation radiator fan and thermostatic control ware, radiator fan and thermostatic control ware electrical property link to each other, gearbox body bottom is equipped with the mounting panel, the conical installed part of mounting panel top welding, conical installed part is located between gearbox body and the mounting panel, conical installed part top is through altitude mixture control pole installation gearbox body, screw installation shock attenuation board is passed through to the mounting panel bottom, the shock attenuation board bottom is equipped with the base.

The existing noise reduction type gearbox still has the following technical defects: good noise reduction effect is difficult to play through the cotton configuration of simple amortization, and the cotton layer of amortization still adsorbs the oil stain easily under permanent use, very inconvenience in follow-up clearance maintenance influences holistic normal use. Accordingly, the present invention has been made to solve the above-mentioned problems occurring in the background, and an object of the present invention is to provide a noise reduction type transmission case.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above defects of the prior art, embodiments of the present invention provide a noise reduction type transmission case to solve the problems set forth in the above background art.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a type of making an uproar gearbox falls, places a fixed protective housing that is provided with in seat upper end including placing seat, gearbox body, and the protective housing embeds carries out the mounting groove of assembling to the gearbox body, protective housing one side is provided with the operation mouth, the protective housing opposite side is provided with the opening of intercommunication mounting groove, annular inserting groove has been seted up in the outside that the protective housing inner wall is located the mounting groove, and feeds through multiunit bloop hole that disappears between mounting groove, the inserting groove internalization is pegged graft and is had the mechanism of making an uproar, the mechanism of making an uproar falls from interior to exterior has set gradually and has inhaled the sound cotton, fall the board of making an uproar, vacuum layer, the protective housing opposite side still docks and is provided with the maintenance lid sealed to it.

Preferably, the bottom of the placing seat is fixedly connected with a mounting plate, and the mounting plate is detachably and fixedly mounted outside through a high-strength bolt.

Preferably, the connection pads are fixedly sleeved on the outer side of the other side of the protection shell and the outer side of the inner side face of the access cover, the adjacent connection pads are detachably and fixedly connected through fasteners, and the butt joint faces of the adjacent connection pads are provided with sealing grooves made of rubber pads.

Preferably, the inner side of the insertion groove is movably provided with a push plate contacting with the inner side end of the noise reduction mechanism, and the push plate is connected with the inner wall of the insertion groove through a spring.

Preferably, the spring is in a spring-extended state when at rest.

Preferably, a heat dissipation fan penetrates through the outer side of the access cover.

The utility model has the technical effects and advantages that:

according to the utility model, the protective shell is arranged on the outer side of the gearbox body, noise reduction is carried out by matching with the built-in noise reduction mechanism while the protective shell is installed, the noise reduction mechanism is installed in the protective shell in a plug-in installation mode and is sleeved on the outer side of the gearbox body, good noise reduction and sound insulation effects can be achieved by utilizing the silencing hole, the sound absorption cotton, the noise reduction plate and the vacuum layer, and the plug-in groove can be automatically popped out by pushing the built-in spring by opening the access cover subsequently, so that the plug-in groove is convenient to take down for maintenance. In conclusion, the overall structure of the transmission is simple and reasonable in arrangement, the noise reduction mechanism is sleeved outside the transmission body in a plugging installation mode for noise reduction treatment, a good noise reduction effect is achieved, meanwhile, the subsequent overhaul and maintenance are facilitated, and the transmission is worthy of being popularized and used in the existing market.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic cross-sectional view of the protective shell structure of fig. 1 according to the present invention.

Fig. 3 is a schematic three-dimensional view of the protective shell structure of fig. 1 according to the present invention.

FIG. 4 is a schematic cross-sectional view of the noise reduction mechanism of FIG. 3 according to the present invention.

The reference signs are: 1-placing seat, 101-mounting plate, 102-high-strength bolt, 2-protective shell, 201-connecting disc, 202-sealing layer, 3-mounting groove, 4-operation opening, 5-gearbox body, 6-insertion groove, 601-push plate, 602-spring, 7-silencing hole, 8-noise reduction mechanism, 9-sound absorption cotton, 10-noise reduction plate, 11-vacuum layer, 12-maintenance cover and 13-heat dissipation fan.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to the attached drawings 1-4 of the specification, the noise-reduction gearbox comprises a placing seat 1 and a gearbox body 5, wherein a protective shell 2 is fixedly arranged at the upper end of the placing seat 1, a mounting groove 3 for assembling the gearbox body 5 is arranged in the protective shell 2, an operation opening 4 is formed in one side of the protective shell 2, an opening communicated with the mounting groove 3 is formed in the other side of the protective shell 2, an annular inserting groove 6 is formed in the outer side, located in the mounting groove 3, of the inner wall of the protective shell 2, the mounting groove 3 is communicated with the inserting groove 6 through a plurality of groups of silencing holes 7, a noise reduction mechanism 8 is movably inserted in the inserting groove 6, the noise reduction mechanism 8 is sequentially provided with sound absorption cotton 9 from inside to outside, a noise reduction plate 10 and a vacuum layer 11, and an inspection cover 12 for sealing the other side of the protective shell 2 is also in butt joint mode.

The embodiment of the utility model is as follows: when the gearbox is used, the gearbox body 5 is fixedly assembled in the mounting groove 3 arranged in the protective shell 2, and the operating end of the gearbox body 5 extends out of the operation opening 4 for connection. Then, the noise reduction mechanism 8 is inserted into the insertion groove 6 in the side wall of the protective shell 2 and sleeved outside the gearbox body 5, the access cover 12 is butted at the other end of the protective shell 2, the connecting disc 201 on the inner side surface of the access cover 12 is butted with the connecting disc 201 on the outer side surface of the protective shell 2 and then fixedly connected through a fastener, and the sealing layer 202 on the butting surface of the connecting disc 201 can increase the overall connection sealing effect. And then the whole is arranged in the cabin of the automobile by matching the mounting plate 101 on the outer side of the placing seat 1 with the high-strength bolt 102 to complete the whole assembly. When the noise reduction device is used, noise enters the noise reduction hole 7 to reach the noise reduction mechanism 8, the noise absorption cotton 9 and the noise reduction plate 10 on the inner side of the noise reduction mechanism 8 reduce noise and then are blocked by the vacuum layer 11, and a good noise reduction effect is achieved. And use for a long time and fall the easy adhesion dust oil stain of mechanism 8 of making an uproar, through opening access cover 12 after, will fall mechanism 8 of making an uproar and release from the part in inserting groove 6 through push pedal 601 under the spring 602 elastic restoring force of inserting groove 6 medial extremity, make things convenient for the staff to take off and overhaul the maintenance.

Specifically, the bottom of the placing seat 1 is fixedly connected with a mounting plate 101, and the mounting plate 101 is detachably and fixedly mounted outside through a high-strength bolt 102.

Specifically, the connection pads 201 are fixedly sleeved on the outer side of the other side of the protective shell 2 and the outer side of the inner side face of the access cover 12, the adjacent connection pads 201 are fixedly connected through fasteners in a detachable mode, the butt joint faces of the adjacent connection pads 201 are provided with sealing grooves 202 made of rubber pads, the connection pads 201 on the inner side face of the access cover 12 are fixedly connected through fasteners after being in butt joint with the connection pads 201 on the outer side face of the protective shell 2, and the sealing layers 202 on the butt joint faces of the connection pads 201 can increase the overall connection sealing effect.

Specifically, the inboard activity of inserting groove 6 is provided with the push pedal 601 of the 8 medial extremes of falling the noise of contact, and push pedal 601 passes through spring 602 and connects the 6 inner walls of inserting groove, and spring 602 is in the elasticity state of stretching when stewing, through opening access cover 12 after, will fall the noise mechanism 8 of falling and release from the inside of inserting groove 6 through push pedal 601 under the spring 602 elastic restoring force of the 6 medial extremes of inserting groove, makes things convenient for the staff to take off and overhauls the maintenance.

Specifically, the outside of the access cover 12 is provided with a heat dissipation fan 13 in a penetrating manner, and the heat dissipation fan 13 can dissipate heat of the built-in transmission body 5 in the butt joint installation groove 3.

The above embodiments are preferred embodiments of the present invention, but the present invention is not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be construed as equivalents thereof, and all such changes, modifications, substitutions, combinations, and simplifications are intended to be included in the scope of the present invention.

In the description of the present invention, it is to be understood that the terms indicating an orientation or positional relationship are based on the orientation or positional relationship shown in the drawings only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Claims

1. The utility model provides a type of making an uproar gearbox falls, is including placing seat (1), gearbox body (5), places seat (1) upper end fixed and is provided with protective housing (2), and protective housing (2) are built-in carries out mounting groove (3) assembled gearbox body (5), its characterized in that: protective housing (2) one side is provided with operation mouth (4), protective housing (2) opposite side is provided with the opening of intercommunication mounting groove (3), annular inserting groove (6) have been seted up in the outside that protective housing (2) inner wall is located mounting groove (3), and through multiunit bloop (7) intercommunication between mounting groove (3), inserting groove (6) internalization is pegged graft and is had the mechanism of making an uproar (8) of making an uproar, the mechanism of making an uproar (8) of making an uproar has set gradually from inside to outside and has inhaled sound cotton (9), fall the board of making an uproar (10), vacuum layer (11), protective housing (2) opposite side still docks and is provided with maintenance lid (12) sealed to it.

2. The noise-reducing transmission case according to claim 1, wherein: the bottom of the placing seat (1) is fixedly connected with a mounting plate (101), and the mounting plate (101) is detachably and fixedly mounted outside through a high-strength bolt (102).

3. The noise-reducing transmission case according to claim 1, wherein: the outside of protective housing (2) opposite side and the outside of access cover (12) medial surface all fixed cover be equipped with connection pad (201), and can dismantle fixed connection through the fastener between adjacent connection pad (201), the butt joint face of adjacent connection pad (201) all is provided with seal groove (202) of rubber pad material.

4. The noise-reducing transmission case according to claim 1, wherein: the inner side of the insertion groove (6) is movably provided with a push plate (601) contacting with the inner side end of the noise reduction mechanism (8), and the push plate (601) is connected with the inner wall of the insertion groove (6) through a spring (602).

5. The noise-reducing transmission case according to claim 4, wherein: the spring (602) is in a sprung state when at rest.

6. The noise-reducing transmission case according to claim 1, wherein: and a heat dissipation fan (13) penetrates through the outer side of the access cover (12).