阅读说明：本技术 一种自卸车液压缸 (Hydraulic cylinder of dumper ) 是由 王化平 赵秀碧 张亚蒙 于 2019-09-12 设计创作，主要内容包括：本发明提供一种自卸车液压缸,包括液压缸主体、密封块和外衬唇；所述液压缸主体的右端与活塞杆相连接处密封有密封盖,其密封盖通过液压缸主体外壁上设置的螺纹封盖在液压缸主体上；所述密封盖内封堵有密封块,其密封块与液压缸主体内筒侧壁之间密封有密封圈。本发明由于液压缸主体的后端耳块的两个外侧壁上均固定设置有扇形状的咬合齿,当液压缸主体在伸缩扩张时,液压缸主体以咬合齿的轴心为转动轴进行转动,且加固环带的外端内嵌在加固轴座中部开设的带槽中,通过加固环带,可将加固轴座与液压缸主体连接为一体结构,加强液压缸主体与加固轴座之间的联系,可解决传统的自卸车液压缸在使用时,轴座易断裂的问题。(The invention provides a hydraulic cylinder of a dumper, which comprises a hydraulic cylinder main body, a sealing block and an outer lining lip; a sealing cover is sealed at the joint of the right end of the hydraulic cylinder main body and the piston rod, and the sealing cover is sealed on the hydraulic cylinder main body through threads arranged on the outer wall of the hydraulic cylinder main body; the sealing cover is internally provided with a sealing block in a plugging way, and a sealing ring is sealed between the sealing block and the side wall of the inner cylinder of the hydraulic cylinder main body. According to the invention, as the two outer side walls of the rear end lug block of the hydraulic cylinder main body are respectively and fixedly provided with the fan-shaped meshing teeth, when the hydraulic cylinder main body is expanded in a telescopic way, the hydraulic cylinder main body rotates by taking the axis of the meshing teeth as a rotating shaft, and the outer end of the reinforcing ring belt is embedded in the belt groove formed in the middle of the reinforcing shaft seat, the reinforcing shaft seat and the hydraulic cylinder main body can be connected into an integral structure through the reinforcing ring belt, so that the connection between the hydraulic cylinder main body and the reinforcing shaft seat is enhanced, and the problem that the shaft seat is easy to break when the traditional hydraulic cylinder of.)

1. A hydraulic cylinder of a dumper is characterized in that: the hydraulic cylinder of the dumper comprises a hydraulic cylinder main body (1), a sealing ring (101), threads (102), a sealing cover (2), a tooth socket (201), a reinforcing shaft seat (3), inner socket teeth (301), a clamping block (302), a groove (303), meshing teeth (4), a reinforcing annular belt (5), a piston rod (6), a sealing block (7) and an outer lining lip (701);

A sealing cover (2) is sealed at the joint of the right end of the hydraulic cylinder main body (1) and the piston rod (6), and the sealing cover (2) is sealed on the hydraulic cylinder main body (1) through threads (102) arranged on the outer wall of the hydraulic cylinder main body (1); a sealing block (7) is sealed in the sealing cover (2), and a sealing ring (101) is sealed between the sealing block (7) and the side wall of the inner cylinder of the hydraulic cylinder main body (1).

2. the hydraulic cylinder of the dump truck as set forth in claim 1, wherein: the outer end edge of the sealing cover (2) is provided with a rectangular tooth socket (201).

3. The hydraulic cylinder of the dump truck as set forth in claim 1, wherein: the outer end of the sealing block (7) is provided with an outer lining lip (701) with the diameter consistent with the outer diameter of the hydraulic cylinder main body (1), and the inner wall of the sealing cover (2) is just consistent with the outer wall of the outer lining lip (701).

4. The hydraulic cylinder of the dump truck as set forth in claim 1, wherein: and fan-shaped meshing teeth (4) are fixedly arranged on two outer side walls of the rear end lug of the hydraulic cylinder main body (1).

5. The hydraulic cylinder of the dump truck as set forth in claim 1, wherein: the rear side of the hydraulic cylinder main body (1) is provided with a reinforcing shaft seat (3) which is arranged on the dump truck through a rotating shaft, and the reinforcing shaft seat (3) is provided with two inner groove teeth (301) which are meshed with the meshing teeth (4).

6. The hydraulic cylinder of the dump truck as set forth in claim 1, wherein: the reinforcing shaft seat (3) on the outer side of the inner groove teeth (301) is provided with a clamping block (302) higher than the bottom of the inner groove teeth (301), and the outer edge of the inner end side wall of the clamping block (302) is just tangent to the outer wall of the meshing teeth (4).

7. The hydraulic cylinder of the dump truck as set forth in claim 1, wherein: the bottom and the top of the rear end of the hydraulic cylinder main body (1) are fixedly provided with a U-shaped reinforcing ring belt (5) through bolts, and the outer end of the reinforcing ring belt (5) is embedded in a belt groove (303) formed in the middle of the reinforcing shaft seat (3).

Technical Field

The invention belongs to the technical field of mechanical equipment, and particularly relates to a hydraulic cylinder of a dumper.

background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When the lifting mechanism is used for realizing reciprocating motion, a speed reduction device can be omitted, no transmission gap exists, and the motion is stable, so the lifting mechanism is widely applied to hydraulic systems of various machines, for example, a hydraulic middle lifting mechanism of a dump truck in patent application CN201720484965.1, the lifting mechanism comprises a draw arm support, the upper end of the draw arm support is fixed with the lifting mechanism, the lifting mechanism comprises a draw arm, a lifting triangular arm and a lifting hydraulic cylinder, the tail end of the draw arm is fixed on the draw arm support through a fixing bolt, a rotary valve is connected between the draw arm and the lifting triangular arm, and the tail end of the lifting triangular arm is connected to a chassis of the dump truck; the pull arm consists of an upper arm and a lower arm; the lifting hydraulic cylinder comprises a hydraulic cylinder base, the hydraulic cylinder base is fixedly installed on the side edge of the draw arm support, a hydraulic cylinder body is fixedly bonded on the upper surface of the hydraulic cylinder base, a high-pressure oil port is connected to the lower side edge of the hydraulic cylinder body, a bypass type limiting valve is installed on the upper side edge of the hydraulic cylinder body, a piston rod is inserted into the hydraulic cylinder body, and a piston is sleeved on the top end of the piston rod. The invention can accurately realize height and angle control, is convenient to operate and improves the working efficiency.

when the hydraulic cylinder is used, the hydraulic cylinder is used for unloading the dumper, the weight of cargos is different, the shaft seat part of the hydraulic cylinder is easy to stress and break in the repeated use process, the hydraulic cylinder is easy to incline in the long-term use, and the dumper is easier to have accidents when being unloaded.

Disclosure of Invention

The invention aims to provide a hydraulic cylinder of a dumper, which aims to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

A hydraulic cylinder of a dumper comprises a hydraulic cylinder main body, a sealing ring, threads, a sealing cover, a tooth socket, a reinforcing shaft seat, inner groove teeth, a clamping block, a groove, meshing teeth, a reinforcing ring belt, a piston rod, a sealing block and an outer lining lip;

A sealing cover is sealed at the joint of the right end of the hydraulic cylinder main body and the piston rod, and the sealing cover is sealed on the hydraulic cylinder main body through threads arranged on the outer wall of the hydraulic cylinder main body; the sealing cover is internally provided with a sealing block in a plugging way, and a sealing ring is sealed between the sealing block and the side wall of the inner cylinder of the hydraulic cylinder main body.

Furthermore, a rectangular tooth socket is formed in the edge of the outer end of the sealing cover.

Furthermore, the outer end of the sealing block is provided with an outer lining lip with the diameter consistent with the outer diameter of the hydraulic cylinder main body, and the inner wall of the sealing cover is just consistent with the outer wall of the outer lining lip.

Furthermore, fan-shaped meshing teeth are fixedly arranged on two outer side walls of the lug block at the rear end of the hydraulic cylinder main body.

Furthermore, a reinforcing shaft seat arranged on the dump truck through a rotating shaft is arranged on the rear side of the hydraulic cylinder main body, and two inner groove teeth meshed with the meshing teeth are arranged on the reinforcing shaft seat.

Furthermore, a clamping block higher than the bottom of the inner groove tooth is arranged on the reinforcing shaft seat outside the inner groove tooth, and the outer edge of the inner end side wall of the clamping block is just tangent to the outer wall of the meshing tooth.

Furthermore, the bottom and the top of the rear end of the hydraulic cylinder main body are fixedly provided with a U-shaped reinforcing ring belt through bolts, and the outer end of the reinforcing ring belt is embedded in a belt groove formed in the middle of the reinforcing shaft seat.

Compared with the prior art, the invention has the following beneficial effects:

Because the two outer side walls of the rear end lug block of the hydraulic cylinder main body are fixedly provided with the fan-shaped occlusion teeth, when the hydraulic cylinder main body is expanded in a stretching way, the hydraulic cylinder main body rotates by taking the axis of the occlusion teeth as a rotating shaft, under the action of the occlusion teeth, the hydraulic cylinder main body can stably rotate, the rear side of the hydraulic cylinder main body is provided with a reinforcing shaft seat which is arranged on a dump truck through the rotating shaft, and the reinforcing shaft seat is provided with two inner groove teeth which are occluded with the occlusion teeth, so that the occlusion teeth can be mutually occluded with the inner groove teeth for transmission when rotating, the eccentricity of the hydraulic cylinder main body caused by the different self-discharging weights when rotating is avoided, the bottom and the top of the rear end of the hydraulic cylinder main body are fixedly provided with U-shaped reinforcing ring belts through bolts, the outer ends of the reinforcing ring belts are embedded in belt grooves arranged in the middle part of the reinforcing shaft, the connection between the main body of the reinforced hydraulic cylinder and the reinforced shaft seat can be enhanced, and the problem that the shaft seat is easy to break when the traditional hydraulic cylinder of the dump truck is used can be solved.

Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.

Drawings

Fig. 1 is a schematic view of the left rear upper axial view of the present invention.

Fig. 2 is a schematic diagram of the right front upper axial view structure of the invention.

Fig. 3 is a schematic structural view of the reinforced shaft seat of the present invention.

Fig. 4 is an axial view of the cylinder body of the present invention.

fig. 5 is a partial axial view of the cylinder body and the seal cover of the present invention.

fig. 6 is a schematic axial view of the cylinder body of the present invention, separated from the seal block and seal cover.

in the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. A hydraulic cylinder main body; 101. a seal ring; 102. a thread; 2. a sealing cover; 201. a tooth socket; 3. reinforcing the shaft seat; 301. inner groove teeth; 302. a clamping block; 303. a belt groove is formed; 4. engaging teeth; 5. reinforcing the ring belt; 6. a piston rod; 7. a sealing block; 701. an outer liner lip.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.