CN211398508U

CN211398508U - Speed reducer case with noise reduction function

Info

Publication number: CN211398508U
Application number: CN201921828394.4U
Authority: CN
Inventors: 张红克; 周金德; 朱斌
Original assignee: Shanghai Dongfangwei Reducer Co ltd
Current assignee: Shanghai Dongfangwei Reducer Co ltd
Priority date: 2019-10-29
Filing date: 2019-10-29
Publication date: 2020-09-01
Anticipated expiration: 2029-10-29

Abstract

The utility model discloses a speed reducer machine case with sound deadening function, the load simulator comprises a case, the machine case includes casing and lower casing respectively, it is the vacuum cavity to go up casing and the internal intermediate layer of inferior valve, shells inner wall can dismantle to be connected with and inhale sound device down, it includes metal sheet, special-shaped hole, plastic slab and inhales the sound cotton respectively to inhale sound device, inferior valve lateral wall switch-on connection has the blast pipe, blast pipe one side can be dismantled and be connected with the sleeve, the sleeve is close to blast pipe one side fixed surface and is connected with the rock wool board, sleeve surface equipartition has the exhaust hole. The utility model discloses a be the vacuum cavity at last casing and the internal intermediate layer of inferior valve, sound can not transmit under the vacuum state, and the internal wall of inferior valve can be dismantled and be connected with and inhale the sound device, and noise absorption in the propagation process, the rock wool board noise absorption of the sleeve inner wall of blast pipe one side go up casing and lower casing junction double-deck sealed, improve the leakproofness, noise reduction.

Description

Speed reducer case with noise reduction function

Technical Field

The utility model relates to the technical field of mechanical equipment, specifically be a speed reducer machine case with amortization function.

Background

The reducer is an independent part consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, and is commonly used as a speed reduction transmission device between a prime mover and a working machine. The function of matching the rotation speed and transmitting the torque between the prime mover and the working machine or the actuating mechanism is very extensive in modern machinery.

The quick-witted case internally mounted of speed reducer has drive assembly, and the transmission operation between the drive assembly can produce the noise, and we all know that the noise is unfavorable for the environmental protection, and current speed reducer machine case has following shortcoming:

1. the inside sound of not possessing of quick-witted case and falling the noise sum device, lead to quick-witted incasement portion's noise too big, reduced operational environment's comfort level.

2. The joint of the upper shell and the lower shell of the case has a gap, and noise is diffused to the air from the gap.

3. The exhaust pipe on one side of the case is in an open state, and noise is exhausted from the exhaust pipe while the speed reducer dissipates heat.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a speed reducer machine case with sound-absorbing function to current speed reducer machine incasement portion does not possess and inhales the sound and fall and make an uproar and device among the solution above-mentioned background art, and the noise that leads to quick-witted incasement portion is too big, has reduced operational environment's comfort level, and there is the clearance in the upper and lower casing junction of machine case, and the noise spreads to the air from the clearance, and quick-witted case one side blast pipe is open state, in the radiating while of speed reducer, the noise is from blast pipe exhaust problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a speed reducer machine case with sound deadening function, includes quick-witted case, quick-witted case includes casing and lower casing respectively, it is the vacuum cavity to go up the internal intermediate layer of casing and inferior valve, shells inner wall can dismantle down is connected with inhales the sound device, it includes metal sheet, dysmorphism hole, plastic slab and inhales the sound cotton respectively to inhale the sound device, casing lateral wall switch-on connection has the blast pipe down, blast pipe one side can be dismantled and be connected with the sleeve, the sleeve is close to blast pipe one side fixed surface and is connected with the rock wool board, sleeve surface equipartition has the exhaust hole, casing and last casing junction are equipped with No. two sealing washers and a sealing washer respectively down, it has the.

Preferably, go up the casing and can dismantle the connection through the bolt and be in casing top down, go up casing upper surface intermediate position fixedly connected with rings, lower surface welding has the bottom plate down, and bottom plate surface symmetry sets up threaded hole, makes things convenient for split and equipment machine case, overhauls the operation to inside drive assembly.

Preferably, the outer wall of the exhaust pipe is provided with an external thread, the inner wall of the sleeve is provided with an internal thread, the external thread of the exhaust pipe is in screw fit with the internal thread of the sleeve, and the sleeve and the exhaust pipe can be conveniently mounted and dismounted in a threaded connection mode.

Preferably, the metal sheet inner wall bonds and has inhales the sound cotton, the inside fixedly connected with plastic slab of metal sheet, the dysmorphism hole has been seted up on the plastic slab surface, and the noise that the inside transmission assembly of speed reducer produced gets into between metal sheet and the plastic slab through the dysmorphism hole, is inhaled the sound cotton and absorbs, at the effectual noise reduction of in-process that the noise propagated.

Preferably, the bottom end of the interior of the case is symmetrically provided with the clamping seats and is fixedly connected, the bottom end of the sound absorption device is inserted into the clamping seats, and the sound absorption device is convenient to mount and dismount and easy to operate.

Preferably, No. two sealing washers bond at casing upper surface down, No. one the sealing washer bonds at last casing lower surface, No. two sealing washers and a sealing washer are laminated mutually, improve the leakproofness of casing and casing junction down, prevent the propagation of noise.

The utility model provides a speed reducer machine case with amortization function possesses following beneficial effect:

(1) the utility model discloses an it is the vacuum cavity to go up casing and the internal intermediate layer of inferior valve, sound can not be propagated under the vacuum state, so machine case self has the fine function of making an uproar of falling, it has the sponge layer to go up the inside top of casing bonding, internal wall can be dismantled and be connected with sound absorbing device down, sound absorbing device includes the metal sheet respectively, special-shaped hole, the plastic slab is cotton with inhaling the sound, the metal sheet inner wall bonds and has inhales the sound cotton, the inside fixedly connected with plastic slab of metal sheet, special-shaped hole has been seted up on the plastic slab surface, the noise that the inside transmission assembly of speed reducer produced passes through between special-shaped hole entering metal sheet and the plastic slab, it.

(2) The utility model discloses a casing is equipped with No. two sealing washers and a sealing washer respectively with last casing junction down, and No. two sealing washers bond casing upper surface under, and a sealing washer bonds at last casing lower surface, and No. two sealing washers and a sealing washer are laminated mutually, and the cooperation of double-deck sealing washer is used, further improves the sealing performance of junction, reduces the clearance of junction, falls to make an uproar and waterproof dustproof performance is good.

(3) The utility model discloses a inferior valve body lateral wall switch-on connection has the blast pipe, blast pipe one side can be dismantled and be connected with the sleeve, the sleeve is close to blast pipe one side fixed surface and is connected with the rock wool board, sleeve surface equipartition has the exhaust hole, the heat that the transmission assembly of speed reducer machine incasement portion produced, through the blast pipe discharge, when discharging heat, transmission assembly's noise also can spread, sound striking is on the rock wool board, it makes an uproar and separates the fire behavior to have fine falling, when not influencing the radiating, the noise reduction, the external screw thread and the telescopic internal thread screw cooperation of blast pipe, mode through threaded connection, be convenient for sleeve and blast pipe's installation and dismantlement, overhaul and change the rock wool board.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of the sound absorbing device of the present invention;

FIG. 3 is a schematic side view of the case of the present invention;

fig. 4 is a schematic view of the connection structure of the exhaust pipe and the sleeve according to the present invention.

In the figure: 1. a chassis; 2. an upper housing; 201. a first sealing ring; 3. a lower housing; 301. a second sealing ring; 4. a base plate; 401. a threaded hole; 6. a sound absorbing device; 601. a metal plate; 602. a profiled hole; 603. a plastic panel; 604. sound-absorbing cotton; 7. a card holder; 8. a sponge layer; 9. a hoisting ring; 10. a vacuum chamber; 11. an exhaust pipe; 1101. an external thread; 12. a sleeve; 1201. an internal thread; 13. rock wool boards; 14. and (4) exhausting holes.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a speed reducer machine case with sound deadening function, includes quick-witted case 1, quick-witted case 1 includes casing 2 and lower casing 3 respectively, it is vacuum cavity 10 to go up casing 2 and the inside intermediate layer of casing 3 down, 3 inner walls of casing can dismantle and be connected with sound absorbing device 6 down, sound absorbing device 6 includes metal sheet 601, dysmorphism hole 602, plastic slab 603 respectively and inhales the

sound cotton

604, 3 lateral walls switch on of casing have blast pipe 11 down, 11 one side of blast pipe can be dismantled and be connected with sleeve 12, sleeve 12 is close to 11 side fixed surface of blast pipe and is connected with rock wool board 13, sleeve 12 surface equipartition has exhaust hole 14, casing 3 and last casing 2 junction are equipped with No. two sealing washer 301 and a sealing washer 201 respectively down, it has sponge layer 8 to bond on 2 inside tops of last casing.

Preferably, go up casing 2 and can dismantle the connection 3 tops of casing down through the bolt, go up 2 upper surface intermediate position fixedly connected with rings 9 of casing, 3 lower surface welding of casing has bottom plate 4 down, and 4 surperficial symmetries of bottom plate set up screw hole 401, and rings 9's effect is conveniently lifted by crane the speed reducer through hoisting equipment, and screw hole 401 through bottom plate 4 is convenient to speed reducer fixed mounting.

Preferably, the outer wall of the exhaust pipe 11 is provided with an external thread 1101, the inner wall of the sleeve 12 is provided with an internal thread 1201, the external thread 1101 of the exhaust pipe 11 is in screw fit with the internal thread 1201 of the sleeve 12, heat generated by a transmission assembly inside the speed reducer case 1 is discharged through the exhaust pipe 11, noise of the transmission assembly can be transmitted while the heat is discharged, sound impacts on the rock wool board 13, the noise reduction and insulation performance is good, and the noise reduction is realized while the heat dissipation is not influenced.

Preferably, the sound absorption cotton 604 is adhered to the inner wall of the metal plate 601, the plastic plate 603 is fixedly connected to the inside of the metal plate 601, the surface of the plastic plate 603 is provided with the special-shaped hole 602, noise generated by a transmission assembly inside the chassis 1 firstly enters the metal plate 601 through the special-shaped hole 602 of the plastic plate 603, and the sound absorption cotton 604 on the surface of the metal plate 601 absorbs the noise and has good noise reduction performance.

Preferably, the bottom symmetry in the inside of machine case 1 is equipped with cassette 7 and is fixed connection, inhale 6 bottoms of sound device and peg graft inside cassette 7, through inhaling 6 bottoms of sound device and peg graft inside cassette 7, easy to assemble and dismantlement.

Preferably, No. two sealing washer 301 bonds at casing 3 upper surface down, a sealing washer 201 bonds at last casing 2 lower surface, No. two sealing washers 301 and a sealing washer 201 are laminated mutually, go up casing 2 and casing 3's junction down and install No. two sealing washers 301 and a sealing washer 201, and double-deck sealing washer cooperation is used, further improves the sealing performance of junction, and it is good to fall the noise and waterproof dustproof performance.

It should be noted that, in the speed reducer chassis with the sound attenuation function, when working, the interlayer inside the upper casing 2 and the lower casing 3 is a vacuum cavity 10, and sound cannot be transmitted in a vacuum state, so the chassis 1 has a good noise attenuation function, the top end inside the upper casing 2 is bonded with the sponge layer 8, the inner wall of the lower casing 3 is detachably connected with the sound absorption device 6, the sound absorption device 6 respectively comprises a metal plate 601, a special-shaped hole 602, a plastic plate 603 and sound absorption cotton 604, the sound absorption cotton 604 is bonded on the inner wall of the metal plate 601, the plastic plate 603 is fixedly connected inside the metal plate 601, the special-shaped hole 602 is formed on the surface of the plastic plate 603, noise generated by a transmission assembly inside the chassis 1 firstly enters the inside of the metal plate 601 through the special-shaped hole 602 of the plastic plate 603, and the sound absorption; a second sealing ring 301 and a first sealing ring 201 are respectively arranged at the joint of the lower shell 3 and the upper shell 2, the second sealing ring 301 is adhered to the upper surface of the lower shell 3, the first sealing ring 201 is adhered to the lower surface of the upper shell 2, the second sealing ring 301 is adhered to the first sealing ring 201, the second sealing ring 301 and the first sealing ring 201 are arranged at the joint of the upper shell 2 and the lower shell 3, and the double-layer sealing rings are matched for use, so that the sealing performance of the joint is further improved, and the noise reduction, water resistance and dust resistance are good; lower 3 lateral walls of casing turn-on connection have

blast pipe

11, 11 one side of blast pipe can be dismantled and be connected with sleeve 12, sleeve 12 is close to 11 one side fixed surface of blast pipe and is connected with rock wool board 13, sleeve 12 surface equipartition has exhaust hole 14, the heat that the transmission assembly of speed reducer machine case 1 inside produced, discharge through blast pipe 11, when discharging the heat, transmission assembly's noise also can spread, the sound striking is on rock wool board 13, rock wool board 13 has fine noise reduction and fire-proof performance, when not influencing the heat dissipation, the noise reduction, the external screw thread 1101 of blast pipe 11 and the internal thread 1201 screw fit of sleeve 12, mode through threaded connection, be convenient for sleeve 12 and the installation and the dismantlement of blast pipe 11, overhaul and change rock wool board 13.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a speed reducer machine case with amortization function, includes quick-witted case (1), quick-witted case (1) includes casing (2) and lower casing (3) respectively, its characterized in that: go up casing (2) and the inside intermediate layer of casing (3) down and be vacuum chamber (10), casing (3) inner wall can be dismantled and be connected with sound absorbing device (6) down, sound absorbing device (6) include metal sheet (601), dysmorphism hole (602), plastic slab (603) respectively and inhale sound cotton (604), casing (3) lateral wall switch-on connection has blast pipe (11) down, blast pipe (11) one side can be dismantled and be connected with sleeve (12), sleeve (12) are close to blast pipe (11) one side fixed surface and are connected with rock wool board (13), sleeve (12) surface equipartition has exhaust hole (14), casing (3) and last casing (2) junction are equipped with No. two sealing washer (301) and sealing washer (201) respectively down, it has sponge layer (8) to go up the inside top of casing (2) to bond.

2. The reducer case with the sound attenuation function according to claim 1, characterized in that: go up casing (2) and can dismantle through the bolt and connect casing (3) top down, go up casing (2) upper surface intermediate position fixedly connected with rings (9), casing (3) lower surface welding has bottom plate (4) down, and bottom plate (4) surface symmetry set up screw hole (401).

3. The reducer case with the sound attenuation function according to claim 1, characterized in that: the exhaust pipe is characterized in that an external thread (1101) is formed in the outer wall of the exhaust pipe (11), an internal thread (1201) is formed in the inner wall of the sleeve (12), and the external thread (1101) of the exhaust pipe (11) is in threaded fit with the internal thread (1201) of the sleeve (12).

4. The reducer case with the sound attenuation function according to claim 1, characterized in that: the sound-absorbing cotton (604) is bonded on the inner wall of the metal plate (601), a plastic plate (603) is fixedly connected inside the metal plate (601), and a special-shaped hole (602) is formed in the surface of the plastic plate (603).

5. The reducer case with the sound attenuation function according to claim 1, characterized in that: the sound absorbing device is characterized in that clamping seats (7) are symmetrically arranged at the bottom end inside the case (1) and fixedly connected with the bottom end of the sound absorbing device (6) in an inserted mode in the clamping seats (7).

6. The reducer case with the sound attenuation function according to claim 1, characterized in that: no. two sealing washer (301) bond at casing (3) upper surface down, a sealing washer (201) bonds at last casing (2) lower surface, No. two sealing washer (301) and a sealing washer (201) are laminated mutually.