CN217198338U - Steering cylinder protective sleeve for mountain tractor - Google Patents

Abstract

The utility model discloses a steering cylinder protective sleeve for a hillside tractor, which relates to the technical field of hillside tractors and comprises a first connecting pipe, a telescopic elastic protective pipe and a second connecting pipe, wherein the first connecting pipe, the telescopic elastic protective pipe and the second connecting pipe are all of hollow tubular structures, the telescopic elastic protective pipe is positioned between the first connecting pipe and the second connecting pipe, the first connecting pipe, the telescopic elastic protective pipe and the second connecting pipe are of integrated structures, a steering cylinder shell and a piston rod are arranged in the whole body formed by the first connecting pipe, the telescopic elastic protective pipe and the second connecting pipe, the steering cylinder protective sleeve for the hillside tractor can play a role in protecting the steering cylinder shell and the piston rod, avoids the situation that the steering cylinder shell leaks oil due to the fact that dust and gravel enter the steering cylinder shell under the severe environment, improves the service life of the steering cylinder shell and the piston rod, the use cost is reduced.

Description

Steering cylinder protective sleeve for mountain tractor

Technical Field

The utility model relates to a mountain region tractor technical field specifically is a steering cylinder protective sheath for mountain region tractor.

Background

With the high-speed development of economy in China, agricultural modernization is strongly promoted, agricultural machinery such as tractors and the like is quite common in vast rural areas, a mountain tractor is a main tool for cultivating hills and mountains in China, the mountain tractor mainly comprises a transmission system, a running system, a steering system, a braking system and the like, wherein the steering system is used for controlling the running direction of a vehicle, a hydraulic steering system is used on part of tractors, namely a hydraulic oil cylinder drives a half-shaft guide pipe of the tractor to realize steering, and compared with a mechanical steering system, the hydraulic steering system is light in steering and is fixedly connected with a frame of the mountain tractor.

Chinese patent with application number CN201620656684.5 discloses a tractor hydraulic steering front axle, this patent adopts two-way cylinder to be connected with left and right tie rod ball head assembly, tie rod has been replaced, connect between movable joint and left and right tie rod ball head assembly by threaded connection, the anteversion angle of wheel hub is adjusted to the steering arm about the accessible, adjust convenient operation swiftly, the wearing and tearing of tire have been reduced, the life of tire has been prolonged, however, the hydraulic cylinder that this patent relates to exists because of the harsh and inside dust gravel that gets into of hydraulic cylinder of service environment, the problem of the hydraulic cylinder production oil leak condition after long-time

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a steering cylinder protective sheath for hillside tractor has solved hydraulic cylinder and has had the problem that hydraulic cylinder produces the oil leak condition because of the abominable dust gravel that makes of service environment that hydraulic cylinder inside gets into, long-time back hydraulic cylinder.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a steering cylinder protective sheath for mountain tractor, includes first connecting pipe, flexible elastic protection tube and second connecting pipe, first connecting pipe, flexible elastic protection tube and second connecting pipe are cavity tubular structure, flexible elastic protection tube is located between first connecting pipe and the second connecting pipe, first connecting pipe, flexible elastic protection tube and second connecting pipe structure as an organic whole, the whole inside that first connecting pipe, flexible elastic protection tube and second connecting pipe are constituteed is equipped with and turns to cylinder housing and piston rod, flexible elastic protection tube all passes through locating part fixed connection with steering cylinder housing and second connecting pipe and piston rod.

Through the technical scheme, be convenient for flexible elastic protection pipe and turn to cylinder housing and second connecting pipe and piston rod fixed connection through the effect of locating part, avoid the second connecting pipe to drop from the piston rod, and avoid flexible elastic protection pipe to drop from turning to cylinder housing, simultaneously through first connecting pipe, flexible elastic protection pipe and second connecting pipe can play the guard action to turning to cylinder housing and piston rod, avoid turning to the inside dust gravel that gets into of cylinder housing under the abominable condition of environment and make to turn to cylinder housing oil leak condition and take place, it is current structure to turn to cylinder housing and piston rod, do not do too much to describe here repeatedly.

Preferably, the first connecting pipe, the flexible elastic protection pipe and the second connecting pipe are concentrically arranged, the inner diameters of the first connecting pipe and the flexible elastic protection pipe are larger than the inner diameter of the second connecting pipe, the two ends of the first connecting pipe, the flexible elastic protection pipe and the second connecting pipe are both in an open state, one end, far away from the piston rod, of the steering cylinder shell extends out of the first connecting pipe, and one end, far away from the steering cylinder shell, of the piston rod extends out of the second connecting pipe.

Through above-mentioned technical scheme, can avoid dust grit to get into the inside that turns to cylinder housing through the effect of first connecting pipe, flexible elastic protection pipe and second connecting pipe, but first connecting pipe, flexible elastic protection pipe and second connecting pipe can not influence the use that turns to cylinder housing and piston rod.

Preferably, the limiting part comprises a first limiting plate and a second limiting plate, the first limiting plate and the second limiting plate are both arc-shaped plate-shaped structures, the first limiting plate and the second limiting plate are both elastic, two guide posts are fixedly mounted at two ends of the first limiting plate, and the first limiting plate and the second limiting plate are connected through a fixing part.

Through above-mentioned technical scheme, first limiting plate and the combination of second limiting plate are around in the circumference outside at flexible elastic protection pipe or second connecting pipe, are convenient for first limiting plate and second limiting plate fixed connection through the effect of mounting, and the locating part can be applicable to the tubular structure of different diameters.

Preferably, the mounting is including the guide post that is located first limiting plate both ends, first limiting plate and guide post fixed connection, the equal fixed mounting in both ends of second limiting plate has the fixed block that is located the second limiting plate surface, the inside cylindrical groove of offering with guide post size adaptation of fixed block, the guide post runs through the fixed block through the cylindrical groove, the circumference outer wall in cylindrical groove is equipped with the thread groove, the outside of guide post is equipped with the spacing ring that is located the fixed block side through the thread bush.

Through above-mentioned technical scheme, inside the user can insert the guide post to the fixed block through the post groove, the guide post runs through the fixed block through the post groove, later passes through the thread bush in the guide post outside and is equipped with the spacing ring, can play fixed fastening effect to guide post and fixed block through the effect of spacing ring.

Preferably, the inner surfaces of the first limiting plate and the second limiting plate are provided with rubber anti-slip pads, and one sides of the rubber anti-slip pads departing from the first limiting plate and the second limiting plate are provided with anti-slip particles.

Through above-mentioned technical scheme, the fixed connection of first limiting plate and second limiting plate and flexible elastic protection pipe or second connecting pipe can be convenient for through the cooperation of rubber slipmat and anti-skidding granule, has improved the stability that the device connects.

Preferably, the diameter of the circular diameter formed when the two ends of the first limiting plate are abutted to the two ends of the second limiting plate is smaller than that of the second connecting pipe, the diameter of the telescopic elastic protection pipe is larger than that of the steering cylinder shell, and the diameter of the second connecting pipe is larger than that of the piston rod.

Through above-mentioned technical scheme, because the circular diameter that forms when first limiting plate and second limiting plate both ends are contradicted is less than the diameter of second connecting pipe, and the bottom of guide post inserts through the columnar groove to the fixed block inside and when not extending the fixed block inside, the circular diameter that first limiting plate and second limiting plate formed is greater than the diameter of flexible elastic protection pipe.

Preferably, the outer surfaces of the first connecting pipe, the flexible elastic protection pipe, the second connecting pipe, the first limiting plate and the second limiting plate are all provided with waterproof coatings, and the outer surfaces of the first limiting plate and the second limiting plate are all provided with heat insulation coatings.

Through above-mentioned technical scheme, the sewage that avoids mountain tractor process mud ground splash to first connecting pipe, flexible elastic protection pipe, second connecting pipe, first limiting plate and second limiting plate influential through waterproof coating's effect.

(III) advantageous effects

The utility model provides a steering cylinder protective sheath for mountain tractor. The method has the following beneficial effects:

(1) this steering cylinder protective sheath for mountain tractor can play the guard action to steering cylinder casing and piston rod through the cooperation of first connecting pipe, flexible elastic protection pipe and second connecting pipe, avoids getting into the inside dust gravel of oil cylinder casing under the abominable condition of environment and makes steering cylinder casing oil leakage condition take place.

(2) This steering cylinder protective sheath for mountain tractor, the effect through the locating part can be convenient for second connecting pipe and piston rod fixed connection, flexible elastic protection pipe with turn to hydro-cylinder casing fixed connection, avoid first connecting pipe, flexible elastic protection pipe and second connecting pipe to deviate from in turning to hydro-cylinder casing and piston rod use, and can not realize the guard action to turning to hydro-cylinder casing and piston rod.

Drawings

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

FIG. 2 is a schematic diagram of a first stop plate structure of the present invention;

fig. 3 is a schematic sectional view of the first connecting pipe of the present invention.

In the figure: 1. a first connecting pipe; 2. a flexible elastic protection tube; 3. a second connection pipe; 4. a stopper; 5. a first limit plate; 6. a guide post; 7. a second limiting plate; 8. a fixed block; 9. a cylindrical groove; 10. a limiting ring; 11. a steering cylinder housing; 12. a piston rod.

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. 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.

As shown in fig. 1-3, the utility model provides a technical solution: a steering oil cylinder protective sleeve for a mountain tractor comprises a first connecting pipe 1, a telescopic elastic protective pipe 2 and a second connecting pipe 3, wherein the first connecting pipe 1, the telescopic elastic protective pipe 2 and the second connecting pipe 3 are all of a hollow tubular structure, the telescopic elastic protective pipe 2 is positioned between the first connecting pipe 1 and the second connecting pipe 3, the first connecting pipe 1, the telescopic elastic protective pipe 2 and the second connecting pipe 3 are of an integrated structure, a steering oil cylinder shell 11 and a piston rod 12 are arranged in the whole formed by the first connecting pipe 1, the telescopic elastic protective pipe 2 and the second connecting pipe 3, the telescopic elastic protective pipe 2 and the steering oil cylinder shell 11 as well as the second connecting pipe 3 and the piston rod 12 are fixedly connected through a limiting part 4, and the telescopic elastic protective pipe 2 and the steering oil cylinder shell 11 as well as the second connecting pipe 3 and the piston rod 12 are fixedly connected through the action of the limiting part 4, the second connecting pipe 3 is prevented from falling off the piston rod 12, the telescopic elastic protection pipe 2 is prevented from falling off the steering cylinder shell 11, meanwhile, the first connecting pipe 1, the telescopic elastic protection pipe 2 and the second connecting pipe 3 can play a role in protecting the steering cylinder shell 11 and the piston rod 12, the situation that oil leaks from the steering cylinder shell 11 due to dust and gravel entering the steering cylinder shell 11 under the severe environment is avoided, the steering cylinder shell 11 and the piston rod 12 are of the existing structure, and redundant description is not given here;

as shown in fig. 1, a first connecting pipe 1, a telescopic elastic protection pipe 2 and a second connecting pipe 3 are concentrically arranged, the inner diameters of the first connecting pipe 1 and the telescopic elastic protection pipe 2 are both larger than the inner diameter of the second connecting pipe 3, both ends of the first connecting pipe 1, the telescopic elastic protection pipe 2 and the second connecting pipe 3 are in an open state, one end of the steering cylinder housing 11, which is far away from the piston rod 12, extends out of the first connecting pipe 1, one end of the piston rod 12, which is far away from the steering cylinder housing 11, extends out of the second connecting pipe 3, dust and gravel can be prevented from entering the steering cylinder housing 11 under the action of the first connecting pipe 1, the telescopic elastic protection pipe 2 and the second connecting pipe 3, but the first connecting pipe 1, the telescopic elastic protection pipe 2 and the second connecting pipe 3 cannot affect the use of the steering cylinder housing 11 and the piston rod 12;

as shown in fig. 2, the limiting member 4 includes a first limiting plate 5 and a second limiting plate 7, the first limiting plate 5 and the second limiting plate 7 are both arc-shaped plate-shaped structures, the first limiting plate 5 and the second limiting plate 7 are both elastic, two guide posts 6 are fixedly mounted at both ends of the first limiting plate 5, the first limiting plate 5 and the second limiting plate 7 are connected by a fixing member, the first limiting plate 5 and the second limiting plate 7 are combined and wound on the outer side of the circumference of the flexible elastic protection tube 2 or the second connection tube 3, the first limiting plate 5 and the second limiting plate 7 are fixedly connected by the fixing member, and the limiting member 4 is applicable to tubular structures with different diameters;

as shown in fig. 2, the fixing member includes guide posts 6 located at two ends of the first limiting plate 5, the first limiting plate 5 is fixedly connected with the guide posts 6, fixing blocks 8 located on the outer surface of the second limiting plate 7 are fixedly mounted at two ends of the second limiting plate 7, a cylindrical groove 9 matched with the size of the guide posts 6 is formed in the fixing block 8, the guide posts 6 penetrate through the fixing blocks 8 through the cylindrical groove 9, a thread groove is formed in the outer circumferential wall of the cylindrical groove 9, a limiting ring 10 located beside the fixing block 8 is sleeved outside the guide posts 6 through threads, a user can insert the guide posts 6 into the fixing block 8 through the cylindrical groove 9, the guide posts 6 penetrate out of the fixing blocks 8 through the cylindrical groove 9, then limiting rings 10 are sleeved outside the guide posts 6 through the threads, and a fixing and fastening effect can be achieved on the guide posts 6 and the fixing blocks 8 through the effect of the limiting rings 10;

as shown in fig. 2, rubber anti-slip pads are arranged on the inner surfaces of the first limiting plate 5 and the second limiting plate 7, anti-slip particles are arranged on the sides of the rubber anti-slip pads, which are far away from the first limiting plate 5 and the second limiting plate 7, and the first limiting plate 5 and the second limiting plate 7 can be conveniently and fixedly connected with the flexible elastic protection tube 2 or the second connecting tube 3 by matching the rubber anti-slip pads and the anti-slip particles, so that the connection stability of the device is improved;

as shown in fig. 3, when the two ends of the first limiting plate 5 abut against the two ends of the second limiting plate 7 to form a circular diameter smaller than the diameter of the second connecting pipe 3, the diameter of the flexible elastic protection pipe 2 is larger than the diameter of the steering cylinder housing 11, and the diameter of the second connecting pipe 3 is larger than the diameter of the piston rod 12, since the circular diameter formed when the two ends of the first limiting plate 5 abut against the two ends of the second limiting plate 7 is smaller than the diameter of the second connecting pipe 3, and the bottom end of the guide post 6 is inserted into the fixed block 8 through the cylindrical groove 9 and does not extend out of the fixed block 8, the circular diameter formed by the first limiting plate 5 and the second limiting plate 7 is larger than the diameter of the flexible elastic protection pipe 2;

as fig. 1, the surface of first connecting pipe 1, flexible elastic protection pipe 2, second connecting pipe 3, first limiting plate 5 and second limiting plate 7 all is equipped with water proof coating, and the surface of first limiting plate 5 and second limiting plate 7 all is equipped with thermal barrier coating, and the effect of avoiding mountain tractor through the waterproof coating is influential to first connecting pipe 1, flexible elastic protection pipe 2, second connecting pipe 3, first limiting plate 5 and second limiting plate 7 through the sewage that the muddy ground splashes.

When the steering oil cylinder is used, a user can sleeve the first connecting pipe 1, the telescopic elastic protection pipe 2 and the second connecting pipe 3 on the outer sides of the steering oil cylinder shell 11 and the piston rod 12, the second connecting pipe 3 is located on the outer side of the piston rod 12, the first connecting pipe 1 is located on the outer side of the steering oil cylinder shell 11, and then the user can enable the second connecting pipe 3 and the piston rod 12 to extend out of one end of the steering oil cylinder shell 11 to be fixedly connected and the telescopic elastic protection pipe 2 and one end of the steering oil cylinder shell 11 to be fixedly connected through the limiting piece 4 respectively;

a user can place the first limiting plate 5 and the second limiting plate 7 on the circumferential outer wall of the second connecting pipe 3, then the guide post 6 can penetrate through the fixing block 8 through the cylindrical groove 9, the diameter of the piston rod 12 is close to the inner diameter of the second connecting pipe 3, then the limiting ring 10 can be sleeved on the outer side of the guide post 6 under the action of threads, one end of the limiting ring 10 is abutted against one end of the fixing block 8, the guide post 6 can be limited under the action of the limiting ring 10, the guide post 6 is prevented from being separated from the fixing block 8, meanwhile, the inner surfaces of the first limiting plate 5 and the second limiting plate 7 can be tightly attached to the circumferential outer wall of the second connecting pipe 3, and the second connecting pipe 3 is fixedly connected with the piston rod 12;

then, another first limiting plate 5 and another second limiting plate 7 can be sleeved on the circumferential outer wall of the telescopic elastic protection tube 2, then the guide post 6 on the first limiting plate 5 can penetrate through the fixing block 8 through the cylindrical groove 9, the diameter of the steering cylinder shell 11 is close to the inner diameter of the telescopic elastic protection tube 2, then the limiting ring 10 can be sleeved on the outer side of the guide post 6 under the action of threads, one end of the limiting ring 10 is abutted against one end of the fixing block 8, the guide post 6 can be limited under the action of the limiting ring 10, the guide post 6 is prevented from being separated from the fixing block 8, meanwhile, the inner surfaces of the first limiting plate 5 and the second limiting plate 7 can be tightly attached to the circumferential outer wall of the telescopic elastic protection tube 2, and the telescopic elastic protection tube 2 is fixedly connected with the steering cylinder shell 11;

the steering cylinder shell 11 and the piston rod 12 can be protected through the matching of the first connecting pipe 1, the telescopic elastic protection pipe 2 and the second connecting pipe 3, the situation that oil leaks from the steering cylinder shell 11 due to dust and gravel entering the inside of the steering cylinder shell 11 under the severe environment is avoided, the steering cylinder shell 11 and the piston rod 12 are of the existing structure and are not described in detail herein, and therefore the use process of the steering cylinder protective sleeve for the mountain tractor is achieved, and meanwhile, the content which is not described in detail in the description belongs to the prior art known by the skilled person in the art.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

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 (7)

1. The utility model provides a steering cylinder protective sheath for mountain tractor, includes first connecting pipe (1), flexible elasticity protection tube (2) and second connecting pipe (3), its characterized in that: first connecting pipe (1), flexible elastic protection pipe (2) and second connecting pipe (3) are cavity tubular structure, flexible elastic protection pipe (2) are located between first connecting pipe (1) and second connecting pipe (3), first connecting pipe (1), flexible elastic protection pipe (2) and second connecting pipe (3) structure as an organic whole, the whole inside of first connecting pipe (1), flexible elastic protection pipe (2) and second connecting pipe (3) constitution is equipped with and turns to hydro-cylinder casing (11) and piston rod (12), flexible elastic protection pipe (2) all through locating part (4) fixed connection with turning to hydro-cylinder casing (11) and second connecting pipe (3) and piston rod (12).

2. The steering cylinder protective sleeve for the hillside tractor according to claim 1, wherein: first connecting pipe (1), flexible elastic protection pipe (2) and second connecting pipe (3) set up with one heart, the internal diameter of first connecting pipe (1) and flexible elastic protection pipe (2) all is greater than the internal diameter of second connecting pipe (3), the both ends of first connecting pipe (1), flexible elastic protection pipe (2) and second connecting pipe (3) are the open mode, turn to the one end that piston rod (12) was kept away from in hydro-cylinder casing (11) and extend first connecting pipe (1), the one end that turns to hydro-cylinder casing (11) is kept away from in piston rod (12) extends second connecting pipe (3).

3. The steering cylinder protective sleeve for the hillside tractor as claimed in claim 1, wherein: the limiting part (4) comprises a first limiting plate (5) and a second limiting plate (7), the first limiting plate (5) and the second limiting plate (7) are both arc-shaped plate-shaped structures, the first limiting plate (5) and the second limiting plate (7) are both elastic, two guide posts (6) are fixedly mounted at two ends of the first limiting plate (5), and the first limiting plate (5) and the second limiting plate (7) are connected through a fixing part.

4. The steering cylinder protective sleeve for the hillside tractor according to claim 3, wherein: the mounting is including guide post (6) that are located first limiting plate (5) both ends, first limiting plate (5) and guide post (6) fixed connection, the equal fixed mounting in both ends of second limiting plate (7) has fixed block (8) that are located second limiting plate (7) surface, fixed block (8) inside offer with guide post (6) size adaptation's columnar groove (9), guide post (6) run through fixed block (8) through columnar groove (9), the circumference outer wall of columnar groove (9) is equipped with the thread groove, the outside of guide post (6) is equipped with spacing ring (10) that are located fixed block (8) side through the thread bush.

5. The steering cylinder protective sleeve for the hillside tractor according to claim 3, wherein: the inner surfaces of the first limiting plate (5) and the second limiting plate (7) are provided with rubber anti-slip pads, and one sides of the rubber anti-slip pads departing from the first limiting plate (5) and the second limiting plate (7) are provided with anti-slip particles.

6. The steering cylinder protective sleeve for the hillside tractor as claimed in claim 3, wherein: the diameter that the circular diameter that forms when conflicting in the both ends of first limiting plate (5) and the both ends of second limiting plate (7) is less than the diameter of second connecting pipe (3), the diameter of flexible elasticity protection tube (2) is greater than the diameter that turns to cylinder housing (11), the diameter of second connecting pipe (3) is greater than the diameter of piston rod (12).

7. The steering cylinder protective sleeve for the hillside tractor according to claim 3, wherein: the surface of first connecting pipe (1), flexible elasticity protection tube (2), second connecting pipe (3), first limiting plate (5) and second limiting plate (7) all is equipped with waterproof coating, the surface of first limiting plate (5) and second limiting plate (7) all is equipped with thermal barrier coating.

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