CN218468173U

CN218468173U - Dustproof and shockproof gearbox

Info

Publication number: CN218468173U
Application number: CN202222810429.XU
Authority: CN
Inventors: 高凤渭; 施迪君; 胡治明
Original assignee: Hangzhou Sukote Transmission Technology Co ltd
Current assignee: Hangzhou Sukote Transmission Technology Co ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-02-10
Anticipated expiration: 2032-10-25

Abstract

The utility model relates to the field of gearboxes, in particular to a dustproof and shockproof gearbox, which comprises a base, a shell, a cover body, a rotating bracket, a control rod, a knob, an input shaft, a driving gear, a clutch, a driven gear and an output shaft; the top of the base is connected with the shell; the top of the shell is connected with the cover body; the top of the cover body is connected with the knob through screw threads; the top of the rotating bracket is connected with the control rod; the side surface of the control rod is connected with the transmission rod; one end of the transmission rod, which is far away from the control rod, is rotationally connected with the clutch; the utility model discloses a this device can be effectual the transmission efficiency and the connection stability of improvement variable speed process, can prevent through the combination of this device casing and lid that external environment from entering into inside this device to improved the stability of this device, the control lever through this device can make this device switch between the driven gear of difference, thereby guaranteed the stability of this device, reduced simultaneously and connected transient torsion to this device internal mechanical structure's destruction.

Description

Dustproof and shockproof gearbox

Technical Field

The utility model relates to a gearbox technical field especially relates to a dustproof shockproof gearbox.

Background

The seal structure of current gearbox is single, it is inside that its input shaft gets into the gearbox with the dust of wrapping up in easily when rotating with the output shaft, pollute gearbox fluid, the life of equipment has been reduced, current gearbox does not set up the anti-vibration device, when the emergence vibration, the input shaft follows the vibration with the output shaft, influence the transmission effect, and current gearbox does not set up the cuttings sediment device, after using a period, friction between the inside gear of gearbox can produce a large amount of cuttings, the cuttings mixes the wearing and tearing speed that has further accelerated the gear in gearbox fluid, to the above-mentioned problem, need improve current equipment.

Chinese patent with an authority bulletin No. CN110925391A discloses a dustproof and shockproof gearbox, including box, input shaft, output shaft, supporting gear and slide bar, the inside baffle that is provided with of box, the box left and right sides is provided with the seal cover, and the inside dust ring and the oil seal circle of being provided with of seal cover, the dust ring sets up the one end of keeping away from the box at the seal cover, and the one end that the seal cover is close to the box is provided with the oil seal circle, the input shaft right-hand member runs through the box left side, and the input shaft sets up at dust ring and oil seal circle inboard, the output shaft left end runs through box left side and baffle, and the output shaft sets up at dust ring and oil seal circle inboard, the box is inside to be provided with the connecting axle, and both ends connecting axle are connected with box inner wall and baffle left side respectively, the connecting axle outside is provided with first planet wheel and second planet wheel, and first planet wheel is connected with first driving gear, first driving gear sets up inside the box, and it has the gearbox fluid and the cuttings that are convenient for discharging dirty through the oil through the box, the inside advantage of box of washing of both ends about the box simultaneously.

However, the above-mentioned known solutions have the following disadvantages: the structure is complicated in the middle of the actual use process, the mechanical friction is large, and meanwhile, the service life of the structure is short due to the fact that the mechanical connection is abraded instantly.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the technical problem who exists among the background art, the utility model provides a dustproof shockproof gearbox, the utility model discloses a transmission efficiency and the connection stability that this device can effectual improvement variable speed process can prevent through the combination of this device casing and lid that external environment from entering into inside this device to improve the stability of this device, the control lever through this device can make this device can switch between the driven gear of difference, thereby has guaranteed the stability of this device, has reduced simultaneously and has connected the destruction of torsion in the twinkling of an eye to this device internal mechanical structure.

The utility model provides a dustproof and shockproof gearbox, which comprises a base, a shell, a cover body, a rotating bracket, a control rod, a transmission rod, a knob, an input shaft, a driving gear, a clutch, a driven gear and an output shaft;

the top of the base is connected with the shell; the top of the shell is connected with the cover body; the top of the cover body is in threaded connection with the knob; the top of the cover body is provided with a through hole which is positioned below the knob; the base is provided with a rotating connecting piece which is rotatably connected with the rotating bracket; the top of the rotating bracket is connected with the control rod; the side surface of the control rod is connected with the transmission rod; one end of the transmission rod, which is far away from the control rod, is rotationally connected with the clutch; the inner part of the shell is rotationally connected with the input shaft; the input shaft is connected with the driving gear; the driving gear is meshed with the driven gear; the inner wall of the driven gear is provided with a shaft sleeve, and the shaft sleeve and the plurality of groups of driven gears are symmetrically distributed on two sides of the clutch; a spline is arranged at one end of the shaft sleeve close to the clutch, the center of the output shaft is disconnected, and the output shaft is positioned in the shaft sleeve; a connecting groove is arranged at one end of the output shaft close to the clutch; the clutch is in contact connection with the side face of the output shaft and the side face of the shaft sleeve.

Preferably, the bottom of the base is provided with a plurality of groups of fixing threaded holes which are distributed around the bottom of the base.

Preferably, the top of the shell is provided with a rubber sealing ring, and the rubber sealing ring is connected with a seam at the bottom of the cover body.

Preferably, a sealing piece is arranged on the bottom of the knob, and the sealing piece is in contact extrusion with the top of the cover body.

Preferably, the side face of the input shaft is provided with a protrusion, the inner wall of the driving gear is provided with a groove, and the width of the protrusion is the same as that of the groove.

Preferably, a sliding limiting part is arranged on the side surface of the input shaft, and the sliding limiting part is in contact with the side surface of the shell.

Preferably, the clutch comprises a rotating ring and a rotating connecting piece, and a wear-resistant layer is arranged on the side face of the rotating connecting piece.

Preferably, the base is provided with a locking piece, and the locking piece is connected with the side face of the rotating support.

The above technical scheme of the utility model following profitable technological effect has:

the utility model discloses a this device can effectual improvement speed change process's transmission efficiency and connection stability, can prevent through the combination of this device casing and lid that external environment from entering into inside this device, thereby the stability of this device has been improved, the control lever through this device can make this device can switch between the driven gear of difference, thereby the stability of this device has been guaranteed, simultaneously reduced and connected the destruction of torsion in the twinkling of an eye to this device internal mechanical structure, the input shaft through this device can make this device can be convenient for the drive gear of compatible different tooth ratio size, simultaneously through the combination of spline and coupling groove can effectual improvement this device's transmission stability, the risk of skidding has been reduced.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a dustproof and shockproof transmission according to the present invention;

fig. 2 is a schematic structural view of a base in the dustproof and shockproof transmission provided by the present invention;

fig. 3 is a schematic structural view of a driven gear in a dustproof and shockproof transmission provided by the present invention;

reference numerals are as follows: 1. a base; 2. a housing; 3. a cover body; 4. rotating the bracket; 5. a control lever; 6. a transmission rod; 7. a knob; 8. an input shaft; 9. a driving gear; 10. a clutch; 11. a driven gear; 12. and an output shaft.

Detailed Description

Example one

As shown in fig. 1-3, the utility model provides a dustproof and shockproof gearbox, which comprises a base 1, a housing 2, a cover 3, a rotating bracket 4, a control rod 5, a transmission rod 6, a knob 7, an input shaft 8, a driving gear 9, a clutch 10, a driven gear 11 and an output shaft 12;

the top of the base 1 is connected with the shell 2; the top of the shell 2 is connected with the cover body 3; the top of the cover body 3 is connected with the knob 7 through screw threads; the top of the cover body 3 is provided with a through hole which is positioned below the knob 7; the base 1 is provided with a rotary connecting piece which is rotationally connected with the rotary bracket 4; the top of the rotating bracket 4 is connected with a control rod 5; the side surface of the control rod 5 is connected with the transmission rod 6; one end of the transmission rod 6, which is far away from the control rod 5, is rotationally connected with the clutch 10; the inside of the shell 2 is rotationally connected with an input shaft 8; the input shaft 8 is connected with a driving gear 9; the driving gear 9 is meshed with the driven gear 11; the inner wall of the driven gear 11 is provided with a shaft sleeve, and the shaft sleeve and the plurality of groups of driven gears 11 are symmetrically distributed on two sides of the clutch 10; a spline is arranged at one end of the shaft sleeve close to the clutch 10, the center of the output shaft 12 is disconnected, and the output shaft 12 is positioned inside the shaft sleeve; a connecting groove is arranged at one end of the output shaft 12 close to the clutch 10; the clutch 10 is in contact connection with the side surface of the output shaft 12 and the side surface of the shaft sleeve; a plurality of groups of fixing threaded holes are arranged at the bottom of the base 1 and distributed around the bottom of the base 1; the bottom of the knob 7 is provided with a sealing element which is in contact extrusion with the top of the cover body 3; a sliding limiting piece is arranged on the side surface of the input shaft 8 and is in contact with the side surface of the shell 2; the clutch 10 comprises a rotating ring and a rotating connecting piece, and a wear-resistant layer is arranged on the side surface of the rotating connecting piece; the base 1 is provided with a locking piece which is connected with the side surface of the rotating bracket 4.

In this embodiment, can effectual improvement speed change structure stability in the middle of the use through this device, when this device is in operating condition, knob 7 through the top can be convenient for annotate lubricating oil for 2 insides of this device casing, thereby the friction between the mechanical structure has been reduced, thereby the life of this device has been prolonged, clutch 10 structure through this device can switch between output shaft 12 and axle sleeve, thereby can make driven gear 11 can be earlier through idle running make lie in output shaft 12 to be connected behind the same slew velocity with driving gear 9, thereby the disconnected axle risk that instantaneous torsion too big leads to has been avoided.

Example two

As shown in fig. 2-3, compared with the first embodiment, in the present embodiment, the top of the casing 2 is provided with a rubber sealing ring, and the rubber sealing ring is connected to the seam at the bottom of the cover 3; the lateral surface of the input shaft 8 is provided with a bulge, the inner wall of the driving gear 9 is provided with a groove, and the width of the bulge is the same as that of the groove.

The utility model discloses an in the embodiment, rubber seal can improve the gas tightness of this device to guaranteed the isolated effect of inner space of this device, can prevent through recess and arch that this device from taking place to skid.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited thereto, and various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A dustproof and shockproof gearbox is characterized by comprising a base (1), a shell (2), a cover body (3), a rotating bracket (4), a control rod (5), a transmission rod (6), a knob (7), an input shaft (8), a driving gear (9), a clutch (10), a driven gear (11) and an output shaft (12);

the top of the base (1) is connected with the shell (2); the top of the shell (2) is connected with the cover body (3); the top of the cover body (3) is in threaded connection with the knob (7); the top of the cover body (3) is provided with a through hole which is positioned below the knob (7); a rotary connecting piece is arranged on the base (1), and the rotary connecting piece is rotationally connected with the rotary bracket (4); the top of the rotating bracket (4) is connected with a control rod (5); the side surface of the control rod (5) is connected with the transmission rod (6); one end of the transmission rod (6) far away from the control rod (5) is rotationally connected with the clutch (10); the inner part of the shell (2) is rotationally connected with the input shaft (8); the input shaft (8) is connected with the driving gear (9); the driving gear (9) is meshed with the driven gear (11); the inner wall of the driven gear (11) is provided with a shaft sleeve, and the shaft sleeve and the plurality of groups of driven gears (11) are symmetrically distributed on two sides of the clutch (10); a spline is arranged at one end of the shaft sleeve close to the clutch (10), the center of the output shaft (12) is disconnected, and the output shaft (12) is positioned inside the shaft sleeve; a connecting groove is arranged at one end of the output shaft (12) close to the clutch (10); the clutch (10) is in contact connection with the side surface of the output shaft (12) and the side surface of the shaft sleeve.

2. The dustproof and shockproof transmission of claim 1, characterized in that a plurality of sets of fixing threaded holes are arranged on the bottom of the base (1), and the plurality of sets of fixing threaded holes are distributed around the bottom of the base (1).

3. The dustproof and shockproof gearbox according to claim 1, characterized in that a rubber seal ring is arranged on the top of the housing (2), and the rubber seal ring is connected with a seam at the bottom of the cover body (3).

4. The dustproof and shockproof gearbox according to claim 1, characterized in that a sealing member is arranged on the bottom of the knob (7), and the sealing member is in contact with and pressed against the top of the cover body (3).

5. The dustproof and shockproof transmission of claim 1, wherein the input shaft (8) is provided with protrusions on its side surface, and the driving gear (9) is provided with grooves on its inner wall, and the protrusions and grooves have the same width.

6. The dustproof and shockproof gearbox according to claim 1, characterized in that a sliding stop is provided on the side of the input shaft (8), and the sliding stop is in contact with the side of the housing (2).

7. The dustproof and shockproof gearbox according to claim 1, characterized in that the clutch (10) comprises a rotating ring and a rotating connecting piece, and the rotating connecting piece is provided with a wear-resistant layer on the side.

8. The dustproof and shockproof gearbox according to claim 1, characterized in that the base (1) is provided with a locking member, and the locking member is connected with the side surface of the rotating bracket (4).