CN209839140U

CN209839140U - Friction-resistant piston rod

Info

Publication number: CN209839140U
Application number: CN201822188294.1U
Authority: CN
Inventors: 陈志荣
Original assignee: WUXI YUSHEN HYDRAULIC MACHINERY CO Ltd
Current assignee: WUXI YUSHEN HYDRAULIC MACHINERY CO Ltd
Priority date: 2018-12-25
Filing date: 2018-12-25
Publication date: 2019-12-24
Anticipated expiration: 2028-12-25

Abstract

The utility model discloses a novel piston rod technical field's antifriction's piston rod, including the piston rod body and end, the one end of the piston rod body is connected with the end to the pulley groove has all been seted up on the surperficial upside of the piston rod body, downside, left side and right side, the inside activity in pulley groove is provided with a plurality of bearing formula pulley to bearing formula pulley includes bearing inner circle, roller type bearing inner race and axle pearl, the axle pearl sets up between bearing inner circle and roller type bearing inner race, fixed interlude is provided with the connecting axle in the bearing inner circle to the both ends terminal surface of connecting axle and the fixed welding of inside wall in pulley groove. The bearing type pulley rolls on the inner wall of the cylinder barrel to replace the surface of the piston rod body to directly contact with the inner wall of the cylinder barrel to slide, so that friction can be greatly reduced, the temperature and the loss of the device are greatly reduced, the service life of the device is prolonged, and the risk caused by high temperature is avoided.

Description

Friction-resistant piston rod

Technical Field

The utility model relates to a novel piston rod technical field specifically is antifriction's piston rod.

Background

The piston rod is the adapting unit who supports the piston and do work, and most use in hydro-cylinder, cylinder motion executive component, is a motion part that the motion is frequent, technical requirement is high, traditional piston rod surface and the inside contact of cylinder, have the friction in the motion, and long-time frequent motion leads to the high loss of temperature serious, and the cylinder internal pressure is just very high originally, if the temperature lasts to rise and can bring unpredictable risk, it is very necessary to design the piston rod of antifriction.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a resistant friction's piston rod to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: antifriction's piston rod, including the piston rod body and end, the one end of the piston rod body is connected with the end to the pulley groove has all been seted up on the surperficial upside of the piston rod body, downside, left side and right side, the inside activity in pulley groove is provided with a plurality of bearing formula pulley, and bearing formula pulley includes bearing inner race, roller type bearing outer lane and axle pearl, the axle pearl sets up between bearing inner race and roller type bearing outer lane, fixed interlude is provided with the connecting axle in the bearing inner race to the both ends terminal surface of connecting axle and the fixed welding of inside wall in pulley groove.

Preferably, the pulley grooves are arranged in four, the distance between any two adjacent pulley grooves is equal, and the four pulley grooves are respectively arranged in the upper center, the lower center, the left center and the right center of the piston rod body.

Preferably, a minimum of three bearing pulleys are arranged in a single pulley groove, and the distance between any two adjacent bearing pulleys is equal.

Preferably, the middle part of the surface of the connecting shaft is fixedly welded with the inner wall of the bearing inner ring, and the outer side wheel surface of the roller type bearing outer ring is higher than the surface of the piston rod body and is in a protruding state.

Preferably, the distance between the inner bottom surface of the pulley groove and the center of the bearing inner ring is greater than the radius of the bearing inner ring.

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

1, roll at the cylinder inner wall with bearing formula pulley and replace piston rod body surface and cylinder inner wall direct contact slip, can reduce the friction greatly, the loss of so temperature and device of friction greatly reduced also can reduce by a wide margin, the life of extension device avoids the risk that high temperature brought.

2, this device simple structure, the rational in infrastructure and the practicality are strong, and market potential is huge to be fit for a large amount of and promote production.

Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

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

FIG. 2 is an enlarged view of area A of FIG. 1;

fig. 3 is a schematic view of the installation of the bearing type pulley and the connecting shaft.

In the drawings, the components represented by the respective reference numerals are listed below:

1-a piston rod body, 2-an end, 3-a pulley groove, 4-a bearing type pulley, 41-a bearing inner ring, 42-a roller type bearing outer ring, 43-a shaft bead and 5-a connecting shaft.

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 of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: antifriction's piston rod, including the piston rod body 1 and end 2, the one end of the piston rod body 1 is connected with end 2, and the surperficial upside of the piston rod body 1, the downside, pulley groove 3 has all been seted up on left side and right side, pulley groove 3's inside activity is provided with a plurality of bearing formula pulley 4, and bearing formula pulley 4 includes bearing inner race 41, roller type bearing outer lane 42 and axle pearl 43, axle pearl 43 sets up between bearing inner race 41 and roller type bearing outer lane 42, fixed interlude is provided with connecting axle 5 in the bearing inner race 41, and the both ends terminal surface of connecting axle 5 and the inside wall fixed weld of pulley groove 3.

Further, in the above solution, the pulley grooves 3 are disposed in four, and the distances between any two adjacent pulley grooves 3 are all equal, the four pulley grooves 3 are respectively disposed at the positions of the top center, the bottom center, the left center and the right center of the piston rod body 1, and the uniform disposition of the pulley grooves 3 is to uniformly dispose 4 on the surface of the piston rod body 1.

Further, in the above scheme, three bearing type pulleys 4 are arranged in a single pulley groove 3, and the distance between any two adjacent bearing type pulleys 4 is equal, so that the plurality of bearing type pulleys 4 can uniformly disperse the friction force between the piston rod and the cylinder barrel during the movement.

Further, in the above solution, the middle part of the surface of the connecting shaft 5 is fixedly welded to the inner wall of the bearing inner ring 41, the outer side of the roller type bearing outer ring 42 is higher than the surface of the piston rod body 1 and is in a protruding state, the rotation of the rolling type bearing outer ring 42 does not affect the bearing inner ring 41, and when the rolling type bearing outer ring 42 rolls in contact with the inner wall of the cylinder, the bearing inner ring 41 is still fixed inside the pulley groove 3 through the connecting shaft 5.

Further, in the above solution, the distance between the inner bottom surface of the pulley groove 3 and the center of the bearing inner ring 41 is larger than the radius of the bearing inner ring 41, which means that the roller bearing outer ring 42 can rotate smoothly.

One specific application of this embodiment is: this device sets up in the cylinder, and when the piston rod body 1 carried out relative motion with the cylinder, bearing formula pulley 4 rolled the laminating with the cylinder inner wall, rolled at the cylinder inner wall with bearing formula pulley 4 and replaced 1 surface of the piston rod body and cylinder inner wall direct contact slip, can reduce the friction greatly, and the loss of friction greatly reduced temperature so and device also can reduce by a wide margin, and the life of extension fixture avoids the risk that high temperature brought.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., 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 preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, to thereby enable others skilled in the art to best understand the invention for and utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. Friction-resistant piston rod comprises a piston rod body (1) and a tip (2), and is characterized in that: the one end of the piston rod body (1) is connected with end (2) to pulley groove (3) have all been seted up on the surperficial upside of the piston rod body (1), downside, left side and right side, the inside activity of pulley groove (3) is provided with a plurality of bearing formula pulley (4) to bearing formula pulley (4) are including bearing inner race (41), roller type bearing outer lane (42) and axle pearl (43), axle pearl (43) set up between bearing inner race (41) and roller type bearing outer lane (42), fixed interlude is provided with connecting axle (5) in bearing inner race (41) to the both ends terminal surface of connecting axle (5) and the inside wall fixed weld of pulley groove (3).

2. A friction-resistant piston rod according to claim 1, characterized in that: pulley groove (3) set up in four to the interval homogeneous phase of two arbitrary adjacent pulley grooves (3) equals, four pulley grooves (3) set up respectively in the top of the piston rod body (1) centre, the centre of below, the centre of left and right-hand centre position.

3. A friction-resistant piston rod according to claim 1, characterized in that: a minimum of three bearing type pulleys (4) are arranged in a single pulley groove (3), and the distance between any two adjacent bearing type pulleys (4) is equal.

4. A friction-resistant piston rod according to claim 1, characterized in that: the middle of the surface of the connecting shaft (5) is fixedly welded with the inner wall of the bearing inner ring (41), and the outer side wheel surface of the roller type bearing outer ring (42) is higher than the surface of the piston rod body (1) and is in a protruding state.

5. A friction-resistant piston rod according to claim 1, characterized in that: the distance between the inner bottom surface of the pulley groove (3) and the center of the bearing inner ring (41) is larger than the radius of the bearing inner ring (41).