CN218845004U

CN218845004U - Auxiliary speed reduction box assembly

Info

Publication number: CN218845004U
Application number: CN202223150118.1U
Authority: CN
Inventors: 林春为; 邓清华
Original assignee: Fujian Shangkun Gearbox Manufacturing Co ltd
Current assignee: Fujian Shangkun Gearbox Manufacturing Co ltd
Priority date: 2022-11-27
Filing date: 2022-11-27
Publication date: 2023-04-11
Anticipated expiration: 2032-11-27

Abstract

The utility model discloses a speed reduction auxiliary box assembly belongs to the drive mechanism field, which comprises a housin, the casing rear end is provided with input spline shaft and output spline shaft, input spline shaft and output spline shaft set up respectively in the casing left and right sides, be provided with input gear and output gear on input spline shaft and the output spline shaft respectively, the rotatable jackshaft that is provided with of casing front end, be provided with duplicate gear on the jackshaft, duplicate gear respectively with input gear and output gear meshing, be provided with the low-speed gear on the output spline shaft, be provided with the slip facing on the output spline shaft, the utility model discloses a setting of duplicate gear when power input drives input spline shaft and rotates, the epaxial input gear of input spline rotates because duplicate gear and input gear and output gear meshing to thereby drive output spline shaft rotation on transmitting power to output gear from input gear through gear meshing.

Description

Auxiliary speed reduction box assembly

Technical Field

The utility model discloses a speed reduction auxiliary box assembly belongs to drive mechanism technical field.

Background

The reduction gearbox is also called as a speed reducer or a speed reducer, works according to the principle that a prime motor is connected with the reduction gearbox, and the reduction gearbox is connected with a working machine, and is power transmission equipment. The gearbox can be divided into an industrial gearbox and a steam gearbox, the industrial gearbox can be divided into a worm gear gearbox, a worm gear gearbox, a planetary gearbox and the like, and the gearbox is mainly divided into a single stage, a second stage and a multi-stage according to the transmission stage number. The latter is generally used for four-wheel drive vehicles, so that the insufficient turning and the unexpected turning caused by the same rotation speed of four tires during turning can be avoided.

At present, motor vehicles, especially agricultural motor vehicles, often run in a speed reducing mode in the running process, an attached speed reducing auxiliary box adopts a multi-stage gear transmission, the speed reducing ratio is large, the vehicles are prone to shaking, in addition, the gear contact surface is small, bearing is uneven, torque is small, and the speed reducing effect is not ideal.

Therefore, a new solution is needed to solve this problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a speed reduction auxiliary box assembly in order to solve foretell problem, having the big even effect that bears of speed reduction stabilizing gear area of contact.

The utility model discloses a following technical scheme realizes above-mentioned purpose, which comprises a housin, the rotatable input spline shaft and the output spline shaft that is provided with of casing rear end, input spline shaft and output spline shaft set up respectively in the casing left and right sides and be in on the same axis, be provided with input gear and output gear on input spline shaft and the output spline shaft respectively, the rotatable jackshaft that is provided with of casing front end, be provided with the duplicate gear on the jackshaft, the duplicate gear meshes with input gear and output gear respectively, be provided with the low-speed gear on the output spline shaft, be provided with the slip facing on the output spline shaft, output gear and low-speed gear set up side by side on the slip facing, the casing is provided with gearshift in output spline shaft rear side, gearshift includes by shift fork and declutch shift shaft, the declutch shift shaft is portable to be set up on the casing and one end extends to the casing outside, shift fork one end is connected one end with the declutch shift shaft and is connected with the slip facing.

Through adopting above-mentioned technical scheme, when power input drives the rotation of input spline shaft, the epaxial input gear of input spline rotates, because duplicate gear and input gear and output gear meshing, thereby pass through gear engagement with power and transmit to output gear on thereby drive the rotation of output spline shaft from input gear, simultaneously through the slip facing, shift fork and shifting fork axle's setting, it removes to remove the shifting fork axle and drives the slip facing through the shift fork that shifts, thereby make low-speed gear replace output gear and duplicate gear meshing to mesh, can accomplish the speed reduction of shifting, it is stable gently to shift the in-process.

Preferably, the two ends of the intermediate shaft are both provided with intermediate end covers, a buffer gasket is arranged between the intermediate end covers and the intermediate shaft, and a bearing is arranged between the intermediate shaft and the shell.

Through adopting above-mentioned technical scheme, through the setting of middle end cover and buffer gasket, the leakproofness of effectual improvement casing prevents that the dust from blockking up the rotation that influences the jackshaft, and the bearing can reduce the jackshaft produced vibration when rotating simultaneously, has improved jackshaft pivoted stability effectively.

Preferably, the shell is provided with an input end cover and an output end cover corresponding to the input spline shaft and the output spline shaft respectively, the input end cover and the output end cover are connected with an input flange and an output flange respectively, and a framework type oil seal is arranged between the input end cover and the output end cover.

Through adopting above-mentioned technical scheme, through the setting of input end cover, output end cover and skeleton formula oil blanket, make it improve its pivoted stability when protection, lubricated input spline shaft and output spline shaft, make power transmission more steady, reduced the produced vibration at the in-process of shifting, be connected through input flange and output flange and axis body simultaneously and make the structure more stable.

Preferably, the upper end of the shell is provided with an upper end cover, the upper end cover is connected with the shell through bolts and nuts, and a sealing gasket is arranged between the upper end cover and the shell.

Through adopting above-mentioned technical scheme, through the setting of upper end cover, the upper end cover passes through bolt and nut and is connected with casing dismantlement, makes the maintenance of speed reduction auxiliary box more convenient, and seal gasket has improved the leakproofness of casing simultaneously.

Preferably, an oil filling hole is formed in the rear side of the shell, and an oil plug is arranged in the oil filling hole.

Through adopting above-mentioned technical scheme, through the setting of oil filler point and oil plug, when needs replenishment lubricating oil, can follow the oil filler point and pour into lubricating oil into through opening the oil plug to make the use of vice case of slowing down more convenient.

Preferably, the input spline shaft is provided with a gear spacer.

By adopting the technical scheme, the gear spacer sleeve can limit and position the input gear, so that the input gear is prevented from shaking during rotating operation, and the stability of power transmission is improved.

Compared with the prior art, the beneficial effects of the utility model are that:

one of them, drive the slip tooth cover through the shift fork of shifting and remove to control the switching between output gear and the low-speed gear, switching in-process level and smooth and stable, the velocity ratio between output gear and the low-speed gear is 1 simultaneously: 1.659, the reduction speed is smaller, effectively reducing the vibration generated by gear switching;

secondly, the middle end cover, the input end cover and the output end cover prevent lubricating liquid in the auxiliary speed reducing box from overflowing, and meanwhile, external dust and sundries can be prevented from entering the auxiliary speed reducing box to influence the operation of the auxiliary speed reducing box;

thirdly, the gear spacer sleeve can position the input gear and prevent the input gear from shaking in the operation process, so that the running stability of the reduction auxiliary box is effectively improved;

fourthly, the set up of oil filler point and oil plug makes the additional lubrication oil that vice case of speed reduction can be convenient, makes the use of vice case of speed reduction more convenient.

Drawings

FIG. 1 is a schematic view of a reduction sub-tank assembly;

FIG. 2 is a cross-sectional view of a reduction sub-tank assembly; .

Reference numerals: 1. a housing; 2. inputting a spline shaft; 3. outputting the spline shaft; 4. an input gear; 5. an output gear; 6. an intermediate shaft; 7. a duplicate gear; 8. a low-speed gear; 9. a sliding gear sleeve; 10. a gear shift mechanism; 1001. a gear shifting fork; 1002. a fork shaft; 11. a middle end cap; 12. an input end cap; 13. an output end cover; 14. an input flange; 15. an output flange; 16. an upper end cover; 17. an oil filler hole; 18. an oil plug; 19. a gear spacer sleeve.

Detailed Description

In the following description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like refer to the orientation or position relationship shown in the drawings, and are only for convenience of description and simplification of the description, but do not refer to or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus are not to be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

A reduction auxiliary box assembly is disclosed, as shown in figures 1-2, comprising a housing 1, an input spline shaft 2 and an output spline shaft 3 are rotatably arranged at the rear end of the housing 1, the input spline shaft 2 and the output spline shaft 3 are respectively arranged at the left and right sides of the housing 1 and on the same axis, an input gear 4 and an output gear 5 are respectively arranged on the input spline shaft 2 and the output spline shaft 3, a middle shaft 6 is rotatably arranged at the front end of the housing 1, a dual gear 7 is arranged on the middle shaft 6, the dual gear 7 is respectively engaged with the input gear 4 and the output gear 5, power input rotates the input spline shaft 2, the input spline shaft 2 rotates the input gear 4, the dual gear 7 is simultaneously engaged with the input gear 4 and the output gear 5, thereby power is transmitted from the input gear 4 to the output gear 5 through gear engagement to drive the output spline shaft 3 to rotate, a low-speed gear 8 is arranged on the output spline 3, a sliding tooth sleeve 9 is arranged on the output gear 5 and the reduction spline 8 are arranged side by side of the sliding gear sleeve 9, the sliding sleeve 9 is connected with a shifting fork shaft 1002, when the shifting effect of the shifting fork shaft 1002 is achieved by the shifting of the dual gear 7, the shifting mechanism 1001 and the shifting fork shaft 1002, the shifting mechanism is achieved by the shifting mechanism, the shifting mechanism 1001 and the shifting mechanism is connected with the shifting mechanism at one end of the low-side of the shifting fork shaft 1002, and gear shifting and speed reduction are completed, when high-speed output is to be recovered, the shifting fork 1001 is moved to drive the sliding gear sleeve 9 to move, and the recovery output gear 5 is meshed with the duplicate gear 7.

Middle shaft 6 both ends all are provided with middle end cover 11, be provided with buffer spacer between middle end cover 11 and the jackshaft 6, be provided with the bearing between jackshaft 6 and the casing 1, middle end cover 11 and buffer spacer can improve the leakproofness of casing 1 and prevent that the dust from blockking up the rotation that influences jackshaft 6, the bearing can reduce the vibration that jackshaft 6 produced when rotating simultaneously, the stability of jackshaft 6 pivoted has been improved effectively, casing 1 corresponds input spline shaft 2 and output spline shaft 3 position and is provided with input end cover 12 and output end cover 13 respectively, input end cover 12 and output end cover 13 are connected with input flange 14 and output flange 15 respectively, be provided with the skeleton formula oil blanket between input end cover 12 and the output end cover 13, input end cover 12, output end cover 13 and skeleton formula oil blanket improve its stability of rotating when protecting, lubricated input spline shaft 2 and output spline shaft 3, make power transmission more steady, the vibration that produces in the process of shifting has been reduced, it makes the structure more stable to connect through input flange 14 and output flange 15 with the axis body simultaneously.

The upper end of the shell 1 is provided with an upper end cover 16, the upper end cover 16 is connected with the shell 1 through a bolt nut, a sealing gasket is arranged between the upper end cover 16 and the shell 1, the upper end cover 16 is detachably connected with the shell 1 through the bolt nut, maintenance and overhaul of the speed reduction auxiliary box are more convenient and faster, meanwhile, the sealing gasket improves the sealing performance of the shell 1, an oil filling hole 17 is formed in the rear side of the shell 1, the oil filling hole 17 is provided with an oil plug 18, when lubricating oil needs to be supplemented, the lubricating oil can be injected from the oil filling hole 17 by opening the oil plug 18, the speed reduction auxiliary box is more convenient to use, a gear spacer 19 is arranged on the input spline shaft 2, the gear spacer 19 can limit and position the input gear 4, the situation that the input gear is rocked when the input gear rotates is prevented, and the stability of power transmission is improved.

When the reduction auxiliary box needs to be reduced, the movable shifting fork shaft 1002 drives the sliding gear sleeve 9 to move through the shifting fork 1001, so that the engagement between the output gear 5 and the duplicate gear 7 is removed, the gear is converted into the engagement between the low-speed gear 8 and the duplicate gear 7, and the speed of the output spline shaft 3 is reduced, when the speed is required to be increased, the movable shifting fork shaft 1002 drives the sliding gear sleeve 9 to move, the output gear 5 is recovered to be engaged with the duplicate gear 7, meanwhile, the generated vibration is small due to the fact that the reduction ratio is small, the contact surface between the gear and the gear is large, the transmission is stable, and the safety and the driving comfort of the reduction auxiliary box are effectively improved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a speed reduction auxiliary box assembly, includes casing (1), its characterized in that: the rear end of the shell (1) is rotatably provided with an input spline shaft (2) and an output spline shaft (3), the input spline shaft (2) and the output spline shaft (3) are respectively arranged at the left side and the right side of the shell (1) and are positioned on the same axis, the input spline shaft (2) and the output spline shaft (3) are respectively provided with an input gear (4) and an output gear (5), the front end of the shell (1) is rotatably provided with an intermediate shaft (6), the intermediate shaft (6) is provided with a duplicate gear (7), the duplicate gear (7) is respectively meshed with the input gear (4) and the output gear (5), a low-speed gear (8) is arranged on the output spline shaft (3), a sliding gear sleeve (9) is arranged on the output spline shaft (3), the output gear (5) and the low-speed gear (8) are arranged on the sliding gear sleeve (9) side by side, a gear shifting mechanism (10) is arranged on the rear side of the output spline shaft (3) of the shell (1), the gear shifting mechanism (10) comprises a gear shifting fork (1001) and a fork shaft (1002), the shifting fork shaft (1002) is movably arranged on the shell (1) and one end of the shifting fork shaft extends to the outer side of the shell (1), one end of the gear shifting fork (1001) is connected with the fork shaft (1002), and the other end is connected with the sliding gear sleeve (9).

2. The reduction sub-tank assembly according to claim 1, wherein: the improved bearing is characterized in that middle end covers (11) are arranged at two ends of the middle shaft (6), a buffer gasket is arranged between each middle end cover (11) and the corresponding middle shaft (6), and a bearing is arranged between each middle shaft (6) and the corresponding shell (1).

3. The reduction sub-tank assembly according to claim 1, wherein: the shell (1) is provided with an input end cover (12) and an output end cover (13) corresponding to the input spline shaft (2) and the output spline shaft (3), the input end cover (12) and the output end cover (13) are connected with an input flange (14) and an output flange (15) respectively, and a framework type oil seal is arranged between the input end cover (12) and the output end cover (13).

4. The reduction sub-tank assembly according to claim 1, wherein: an upper end cover (16) is arranged at the upper end of the shell (1), the upper end cover (16) is connected with the shell (1) through bolts and nuts, and a sealing gasket is arranged between the upper end cover (16) and the shell (1).

5. The reduction sub-box assembly according to claim 1, wherein: an oil filling hole (17) is formed in the rear side of the shell (1), and an oil plug (18) is arranged in the oil filling hole (17).

6. The reduction sub-tank assembly according to claim 1, wherein: and a gear spacer bush (19) is arranged on the input spline shaft (2).