CN217814874U

CN217814874U - Steering drive clutch and agricultural gearbox

Info

Publication number: CN217814874U
Application number: CN202222153621.6U
Authority: CN
Inventors: 黄泽伟
Original assignee: Chuzhou Yueda Industrial Co ltd
Current assignee: Chuzhou Yueda Industrial Co ltd
Priority date: 2022-08-16
Filing date: 2022-08-16
Publication date: 2022-11-15
Anticipated expiration: 2032-08-16

Abstract

The utility model discloses a turn to transmission clutch and agricultural gearbox, the steering spindle that is equipped with return spring, steering gear including both sides activity cover respectively and coaxial locating steering spindle on and be equipped with the sun gear of internal tooth, the steering gear both sides are equipped with the driving gear respectively and with the meshing of sun gear internal tooth turn to the tooth, still coaxial being fixed with on the steering spindle with the meshing of sun gear internal tooth hookup gear, the sun gear both sides all are equipped with cyclic annular boss, and the outer matching of cyclic annular boss cup joints the slip external member with sun gear elastic connection, it installs sealed external member to rotate on the steering gear, sealed external member is located and turns to between tooth and the driving gear. The utility model discloses can reduce when turning to turn to tooth and sun gear at the dynamics of meshing in-process collision each other, realize spacing meshing, the extension turns to the life of separation and reunion, and stable in structure turns to and further lubricates through lubricating oil between tooth and the sun gear, promotes the stability that turns to in-process automobile body.

Description

Steering drive clutch and agricultural gearbox

Technical Field

The utility model relates to an agricultural machine technical field especially relates to turn to transmission clutch and agricultural gearbox.

Background

With the continuous improvement of the automation degree of agricultural production, more and more agricultural machines are put into the agricultural production nowadays, and in the agricultural machines, a gearbox is a very important component, and a steering transmission clutch is also included in the gearbox, so that the gearbox controls the transmission of power to left and right driving wheels to realize the steering of a tractor.

The existing patent publication numbers are: CN102720808A, the name of this patent is "gearbox steering mechanism", including steering shaft 1, set up coaxially on steering shaft 1 and open the intermediate gear 4 of internal tooth, slip the cover respectively on the steering shaft 1 of intermediate gear 4 both sides and have left, right steering gear 3, 8, one side of left, right steering gear 3, 8 has the big tooth that engages with the internal tooth of intermediate gear 4, the other side has the small tooth, have left, right steering fork 2, 9 correspondingly on left, right steering gear 3, 8, overlap the left, right return spring 11, 10 at both ends of steering shaft 1, a connecting gear 5 is fixed coaxially on steering shaft 1, this connecting gear 5 locates between left, right steering gear 3, 8 and with the internal tooth of intermediate gear 4 meshes. The gearbox steering mechanism has the advantages of novel structure, large transmission torque, long service life, good clutch performance, high production efficiency and low manufacturing cost.

Among the above-mentioned prior art, turn to tooth and central drive gear and do not carry out the buffering processing at the meshing in-process, but direct collision meshing, because the operating condition of agricultural machinery is comparatively abominable, this kind of meshing's mode not only can cause the influence to the life of clutch, still can influence the stability of gearbox and fuselage.

SUMMERY OF THE UTILITY MODEL

The invention aims to provide a steering transmission clutch and an agricultural gearbox, which aim to solve the defects in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the steering transmission clutch comprises a steering shaft and a central gear, wherein a return spring, a steering gear and the central gear are movably sleeved on two sides of the steering shaft respectively, the steering shaft is coaxially arranged on the steering shaft and provided with inner teeth, transmission teeth and steering teeth meshed with the inner teeth of the central gear are arranged on two sides of the steering gear respectively, a connecting gear meshed with the inner teeth of the central gear is coaxially fixed on the steering shaft, annular bosses are arranged on two sides of the central gear respectively, sliding sleeve members elastically connected with the central gear are sleeved outside the annular bosses in a matched mode, sealing sleeve members are rotatably arranged on the steering gear and located between the steering teeth and the transmission teeth, the end portions of the sliding sleeve members are sleeved in a matched mode and elastically connected with the sealing sleeve members, in the process that the steering teeth are meshed with the inner teeth of the central gear, buffering is carried out through elastic connection relations among the sliding sleeve members, the central gear and the sealing sleeve members, and a lubricating oil cavity is formed between the sliding sleeve members and the sealing sleeve members.

Preferably, the sliding sleeve piece comprises a sleeve with two open ends, the inner wall of the opening at one end of the sleeve is attached to the outer surface of the annular boss, a sealing ring is embedded in the inner wall of the annular boss, and the outer wall of the opening at the other end of the sleeve is attached to the inner surface of the sealing sleeve piece.

Preferably, the central gear is provided with a limiting slot matched with the sleeve, and a spring gasket is arranged in the limiting slot.

Preferably, the sealing kit comprises a sealing end cover, one side of the sealing end cover is sleeved outside the sleeve and is provided with a buffer spring connected with the sleeve, the other side of the sealing end cover is fixedly connected with a connecting ring, and the connecting ring is nested on the steering gear.

Preferably, a positioning ring is arranged at one end of the sleeve in the sealing end cover, and an annular positioning groove for the positioning ring to move is formed in the sealing end cover.

Preferably, a plurality of groups of stirring rods are annularly distributed on one side, close to the sealing sleeve, of the inner wall of the sleeve.

The agricultural gearbox comprises the steering transmission clutch and a gearbox shell, wherein the steering transmission clutch is arranged inside the gearbox.

The utility model provides a turn to transmission clutch and agricultural gearbox. The method has the following beneficial effects:

this turn to transmission clutch and agricultural gearbox, through install spring gasket and buffer spring additional between slip external member and sealing sleeve spare, can reduce to turn to the tooth and central gear at the collision dynamics of meshing in-process when turning to, it is spacing to dock before the meshing simultaneously, prevent to cause the gear damaged when the butt joint because of the axostylus axostyle skew, the life of extension clutch, slip external member and sealing sleeve spare are mutually supported, can not only more comprehensive protection live and turn to the driving tooth, can also utilize fluid in the lubricating oil chamber to lubricate it, the stability of automobile body when promoting to turn to.

Drawings

Fig. 1 is a schematic view of the overall structure of a steering transmission clutch according to the present invention;

fig. 2 is an enlarged view of a portion a of the steering transmission clutch according to the present invention;

fig. 3 is a schematic structural view of a sliding sleeve and a sealing sleeve in the steering transmission clutch according to the present invention;

fig. 4 is a schematic view showing the connection of the sliding sleeve and the sealing sleeve in the steering transmission clutch according to the present invention.

Illustration of the drawings:

1. a steering shaft; 101. a return spring; 102. a steering gear; 103. a transmission gear; 104. a steering tooth; 105. a coupling gear; 2. a sun gear; 201. an annular boss; 202. limiting slots; 203. a spring washer; 3. a sliding sleeve member; 301. a sleeve; 302. a seal ring; 303. a stirring rod; 304. a positioning ring; 4. a sealing sleeve; 401. sealing the end cap; 402. a connecting ring; 403. positioning a groove; 5. a buffer spring; 6. and a lubricating oil cavity.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-4, a steering transmission clutch includes a return spring 101 movably sleeved on both sides of a steering shaft 1 of a steering gear 102 and a central gear 2 coaxially disposed on the steering shaft 1 and having internal teeth, the steering gear 102 is provided with a transmission tooth 103 and a steering tooth 104 engaged with the internal teeth of the central gear 2 on both sides thereof, the steering gear 102 moves toward the central gear 2 and is finally engaged with the internal teeth of the central gear 2 under the action of the return spring 101, and then power is transmitted through the central gear 2, the steering gear 102 is driven by a steering fork and can slide in the opposite direction to be disengaged, a coupling gear 105 engaged with the internal teeth of the central gear 2 is coaxially fixed on the steering shaft 1, the coupling gear 105 is disposed between the two steering gears 102, annular bosses 201 are disposed on both sides of the central gear 2, a sliding sleeve 3 elastically connected with the central gear 2 is sleeved outside the annular bosses 201, a sealing sleeve 4 is rotatably mounted on the steering gear 102, when the steering gear 102 slides under the action of the return spring 101, the sealing sleeve 4 is positioned between the transmission tooth 103 and the sliding sleeve 3 elastically connected with the central gear 2, and the sealing sleeve 4 is connected with the central gear 2, and the sealing sleeve 102, and the sealing sleeve 4 is capable of reducing the axial force generated when the sealing sleeve 2 slides under the central gear 102, and the sealing sleeve 2, the sealing sleeve 102, the sealing sleeve is engaged with the central gear 102, and the central gear 102, and the central gear 2, the sealing sleeve can be engaged with the central gear 102, and the sealing sleeve can slide in the sealing sleeve during the process, avoid causing the gear to be damaged when the butt joint because of the axostylus axostyle skew, be formed with lubricating oil chamber 6 between slip external member 3 and the sealing sleeve 4, utilize lubricating oil to further lubricate turning to tooth 104 and sun gear 2.

The utility model discloses an among the further technical scheme, slip external member 3 includes both ends open-ended sleeve pipe 301, and the open-ended inner wall of sleeve pipe 301 one end is laminated in the surface of cyclic annular boss 201, and its inside embedding is equipped with sealing washer 302, and sleeve pipe 301 other end open-ended outer wall is laminated in seal assembly 4's internal surface, lets slip external member 3 closely laminate all the time on sun gear 2 and seal assembly 4, avoids revealing of lubricated fluid.

The utility model discloses an among the further technical scheme, be equipped with on the sun gear 2 with sleeve pipe 301 assorted spacing slot 202, be equipped with spring shim 203 in the spacing slot 202, further carry out spacing and shock attenuation to slip external member 3 to avoid slip external member 3 and sun gear 2 to produce rigid collision.

The utility model discloses an among the further technical scheme, sealed external member 4 includes end cover 401, and end cover 401 cup joints outside sleeve 301 on one side of the end cover, and end cover 401 opposite side fixedly connected with go-between 402, go-between 402 nestification are on steering gear 102 for sealed external member 4 can follow steering gear 102 and remove, and then supports slip external member 3.

The utility model discloses an among the further technical scheme, sleeve pipe 301 one end installs holding ring 304 in end cover 401, has seted up the annular positioning groove 403 that supplies holding ring 304 to remove in end cover 401, prevents that end cover 401 from coming off from sleeve pipe 301 tip when removing.

The utility model discloses an among the further technical scheme, one side annular distribution that sleeve pipe 301 inner wall is close to seal assembly 4 has multiunit stirring rod 303, and when steering gear 102 rotated, stirring rod 303 stirred the fluid in the lubricating oil chamber rather than the cooperation, avoided the iron fillings to gather.

An agricultural gearbox comprises the steering transmission clutch and a gearbox, wherein the steering transmission clutch is arranged in the gearbox.

During normal driving, the steering teeth 104 on the steering gears 102 on the two sides are meshed with the inner teeth of the central gear 2, so that forward power is provided, a machine is enabled to run forwards linearly, when the machine steers, the steering gears 102 slide in opposite directions under the driving of the steering forks on the two sides, the meshing with the inner teeth of the central gear 2 is released, one-side braking is achieved, so that steering is completed, after the steering is completed, the steering gears 102 slide to return under the action of the return springs 101, when the sliding sleeve 3 is ready to be meshed with the central gear 2, the sliding sleeve 3 is inserted into the limiting slot 202 on the central gear 2 under the action of the sealing sleeve 4 in advance, so that the limiting of the axis of the steering gears 102 is achieved, the gears are prevented from being damaged during butt joint due to shaft rod deviation, then after double buffering of the spring gaskets 203 and the buffer springs 5, the steering gears 102 are meshed with the central gear 2, hard collision between the steering gears 102 and the central gear 2 is avoided, the sliding sleeve 3 is matched with the sealing sleeve 4 in a sleeved mode, the steering teeth 104 on the steering gears 102 are surrounded, and the steering gears can be protected more comprehensively, lubricating oil in the lubricating oil can be used for lubricating oil, and the stability of a vehicle body is improved.

After the steering transmission clutch is installed in the gearbox, the amplitude of the steering transmission clutch can be reduced during steering, so that the vehicle body is more stable in the driving process.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. Turn to transmission clutch, including both sides respectively the movable sleeve be equipped with return spring (101), steering shaft (1) of steering gear (102) and coaxial central gear (2) of locating on steering shaft (1) and being equipped with the internal tooth, steering gear (102) both sides are equipped with driving tooth (103) respectively and with central gear (2) internal tooth engaged with turn to tooth (104), still coaxial fixed is connected gear (105) with central gear (2) internal tooth engaged with on steering shaft (1), its characterized in that:

two sides of the central gear (2) are respectively provided with an annular boss (201), and the outside of the annular boss (201) is sleeved with a sliding sleeve (3) elastically connected with the central gear (2) in a matching way;

a sealing sleeve (4) is rotatably mounted on the steering gear (102), and the sealing sleeve (4) is positioned between the steering gear (104) and the transmission gear (103);

the sealing sleeve (4) is matched with and sleeved on the end part of the sliding sleeve (3) and is elastically connected with the end part;

in the process that the steering teeth (104) are meshed with the inner teeth of the central gear (2), buffering is performed through the elastic connection relation among the sliding sleeve (3), the central gear (2) and the sealing sleeve (4);

and a lubricating oil cavity (6) is formed between the sliding sleeve (3) and the sealing sleeve (4).

2. The steering transmission clutch according to claim 1, wherein the sliding sleeve (3) comprises a sleeve (301) with openings at two ends, the inner wall of the opening at one end of the sleeve (301) is attached to the outer surface of the annular boss (201), a sealing ring (302) is embedded in the inner wall of the opening at one end of the sleeve (301), and the outer wall of the opening at the other end of the sleeve (301) is attached to the inner surface of the sealing sleeve (4).

3. The steering transmission clutch according to claim 2, wherein the sun gear (2) is provided with a limit slot (202) matching with the sleeve (301), and a spring washer (203) is provided in the limit slot (202).

4. The steering transmission clutch according to claim 2, wherein the seal assembly (4) comprises a seal end cover (401), one side of the seal end cover (401) is sleeved outside the sleeve (301) and is provided with a buffer spring (5) connected with the sleeve (301), the other side of the seal end cover (401) is fixedly connected with a connecting ring (402), and the connecting ring (402) is nested on the steering gear (102).

5. The steering transmission clutch according to claim 4, wherein the sleeve (301) has a retaining ring (304) mounted at one end in a sealing end cap (401), and wherein the sealing end cap (401) has an annular retaining groove (403) for movement of the retaining ring (304).

6. The steering transmission clutch according to claim 4, characterized in that a plurality of groups of stirring rods (303) are annularly distributed on one side of the inner wall of the sleeve (301) close to the sealing sleeve (4).

7. An agricultural gearbox comprising the steering drive clutch of any one of claims 1 to 6, and further comprising a gearbox, the steering drive clutch being located within the gearbox.