CN110925274A

CN110925274A - Piston rod oil cylinder

Info

Publication number: CN110925274A
Application number: CN201911302770.0A
Authority: CN
Inventors: 李志强
Original assignee: Nanan Yi Dun Trade Co Ltd
Current assignee: Nanan Yi Dun Trade Co Ltd
Priority date: 2019-12-17
Filing date: 2019-12-17
Publication date: 2020-03-27

Abstract

The invention discloses a piston rod oil-through oil cylinder, which structurally comprises a hydraulic cylinder, a connecting rod, a bushing and an oil inlet and outlet pipe, wherein the hydraulic cylinder consists of a cylinder body, a piston rod, an upper cylinder cover, an oil-through mechanism, a buffering warning device and a limiting bracket, the hydraulic cylinder utilizes an oil dirt filtering mechanism to prevent oil dirt from being adhered to the inner wall of the cylinder body, the phenomenon that the oil temperature rises due to too fast friction between the piston rod and the cylinder body is avoided, the sealing performance in the cylinder body is deteriorated under the conditions of thermal expansion and cold contraction, the service life of the hydraulic cylinder is influenced, the service life of a sealing ring and the service life of the hydraulic cylinder are prolonged by utilizing the sealing mechanism, the sealing performance in the hydraulic cylinder is improved, and whether the hydraulic cylinder leaks or not is.

Description

Piston rod oil cylinder

Technical Field

The invention relates to the field of hydraulic equipment, in particular to a piston rod oil through oil cylinder.

Background

At present, the oil cylinder adopts the working modes of cylinder body fixation and piston rod movement, and working oil enters and exits from a connector positioned on the cylinder body. When some equipment needs to adopt the working mode of piston rod fixation and cylinder body movement due to the structure, the oil pipe connected to the cylinder body interface influences the normal action of the oil cylinder. The pneumatic cylinder is the quick business turn over of fluid in piston and the cylinder body when doing piston motion at a high speed, can lead to the grease adhesion of fluid on the cylinder body inner wall for the too fast oil temperature of friction risees between piston and the cylinder body, can lead to the leakproofness variation of cylinder body under expend with heat and contract with cold, influences the life of pneumatic cylinder, and in case the piston rod has the exosmosis or leaks with the sealed of sealing washer, can lead to the use of pneumatic cylinder to appear the accident emergence.

Disclosure of Invention

Aiming at the defects of the prior art, the invention is realized by the following technical scheme: a piston rod oil cylinder comprises a hydraulic cylinder, a connecting rod, a bushing and an oil inlet and outlet pipe, wherein the connecting rod is installed on the surface of the hydraulic cylinder;

the pneumatic cylinder constitute by cylinder body, piston rod, last cylinder cap, logical oily mechanism, buffering warning device, spacing support, the inside intermediate position of cylinder body on be equipped with the piston rod, cylinder body and piston rod mechanical connection, piston rod one serve and install logical oily mechanism, the cylinder body top on be equipped with the cylinder cap, cylinder body and last cylinder cap swing joint, the inside bottom of cylinder body have buffering warning device, cylinder body and buffering warning device be connected, cylinder body bottom have spacing support, cylinder body and spacing support fixed connection.

As the further optimization of this technical scheme, logical oily mechanism constitute by piston, buffering plunger, filtration oil dirt mechanism, sealing mechanism, ring baffle, piston rod one end on install the piston, piston bottom intermediate position on be equipped with the buffering plunger, piston and buffering plunger fixed connection, buffering plunger on be equipped with on the surface and filter oil dirt mechanism, buffering plunger and filtration oil dirt mechanism adopt clearance fit, the piston on the surface install sealing mechanism, the piston top on be equipped with the ring baffle, piston and ring baffle structure as an organic whole.

As the further optimization of this technical scheme, filtration oil dirt mechanism constitute by rotary disk, water conservancy diversion leaf, filter screen, oil feed annular, race ring, the inside equidistance of rotary disk distribute and be equipped with the water conservancy diversion leaf more than two, the inside intermediate position of rotary disk on be equipped with the race ring, rotary disk and race ring adopt clearance fit, race ring and water conservancy diversion leaf between be equipped with the oil feed annular, one of water conservancy diversion leaf serve and install the filter screen.

As the further optimization of this technical scheme, sealing mechanism constitute by sealing washer, arc holding strip, ejector pin, the inboard equidistance of sealing washer distribute and be equipped with four arc holding strips, sealing washer and arc holding strip laminate mutually, arc holding strip inboard on the surface be equipped with the ejector pin, arc holding strip and ejector pin swing joint.

As the further optimization of this technical scheme, buffering warning device constitute by a buffer cylinder, logical hydraulic fluid port, warning post, buffer cylinder bottom under be equipped with warning post, a buffer cylinder and warning post structure as an organic whole, a buffer cylinder on the surface be equipped with logical hydraulic fluid port.

As a further optimization of the technical scheme, the oil inlet and outlet pipe is communicated with the cylinder body through an oil inlet.

As further optimization of the technical scheme, the buffer plunger and the rotating disc are in clearance fit through a bearing ring.

As a further optimization of the technical scheme, the warning post and the limiting bracket are parallel to each other and are positioned on the same horizontal plane.

Advantageous effects

According to the piston rod oil-through oil cylinder, when a piston rod drives a piston to rapidly work in a cylinder body, the piston drives an oil dirt filtering mechanism to flow and rotate with oil, when the piston drives a rotating disc to rotate upwards, the rotating disc rotates clockwise and generates a vortex by utilizing rotation of a flow guide vane, the oil flows out of the rotating disc from the flow guide vane after passing through a filter screen through an oil inlet ring groove, the oil dirt in the oil is filtered through the filter screen, when the piston drives the rotating disc to rotate downwards, the rotating disc rotates anticlockwise, so that the oil enters from the flow guide vane and takes the oil dirt on the filter screen out of the cylinder body, and the rotating disc enables a buffer plunger not to influence the rotating work of the rotating disc by utilizing the matching between a; can lead to the wearing and tearing of sealing washer outer wall when piston and cylinder body inner wall long-term friction, cause the leakproofness poor, and the piston utilizes the ejector pin to drive the arc holding strip and outwards ejecting with the sealing washer, make the sealing washer can increase life, and when the inside problem that goes wrong of pneumatic cylinder, the buffering plunger can strike the buffer tube, make the buffer tube outwards roll-off of pneumatic cylinder, consequently inside the user can follow the outside and observe warning post and shift out the pneumatic cylinder, and then judge whether the pneumatic cylinder appears leaking, utilize spacing support to block dropping of buffer tube.

Compared with the prior art, the invention has the beneficial effects that: the pneumatic cylinder utilizes and filters the grease mechanism and avoids the grease adhesion on the cylinder body inner wall, avoid resulting in the too fast oil temperature rising of friction between piston rod and the cylinder body, can let the leakproofness variation in the cylinder body under expend with heat and contract with cold, influence the life of pneumatic cylinder, the pneumatic cylinder utilizes sealing mechanism to increase the life of sealing washer and self, and improve the leakproofness in the pneumatic cylinder, and judge whether the pneumatic cylinder appears leaking through buffering warning device, the accident takes place in the use of avoidng the pneumatic cylinder.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic structural diagram of a piston rod oil cylinder according to the present invention.

Fig. 2 is a front sectional static state diagram of the piston rod oil cylinder of the present invention.

Fig. 3 is a front sectional view of the piston rod oil cylinder according to the present invention.

Fig. 4 is a schematic structural diagram of the oil dirt filtering mechanism of the present invention.

Fig. 5 is a schematic top view of the oil dirt filtering mechanism of the present invention.

Fig. 6 is a schematic structural view of the sealing mechanism of the present invention.

Fig. 7 is a schematic structural diagram of the buffering warning device of the present invention.

In the figure: the device comprises a hydraulic cylinder-1, a connecting rod-2, a bushing-3, an oil inlet and outlet pipe-4, a cylinder body-1 a, a piston rod-1 b, an upper cylinder cover-1 c, an oil passing mechanism-1 d, a buffering warning device-1 e, a limiting bracket-1 f, a piston-1 d1, a buffering plunger-1 d2, an oil dirt filtering mechanism-1 d3, a sealing mechanism-1 d4, a baffle ring plate-1 d5, a rotating disc-1 d31, a flow guide vane-1 d32, a filter screen-1 d33, an oil inlet ring groove-1 d34, a bearing ring-1 d35, a sealing ring-1 d41, an arc-shaped clamping strip-1 d42, a push rod-1 d43, a buffering cylinder-1 e1, an oil passing port-1 e2 and a warning column-1 e 3.

Detailed Description

In order to make the technical means, the original characteristics, the achieved purposes and the effects of the invention easy to understand, the following description and the accompanying drawings further illustrate the preferred embodiments of the invention.

Example 1

Referring to fig. 1-5, the invention provides a piston rod oil cylinder, which comprises a hydraulic cylinder 1, a connecting rod 2, a bushing 3 and an oil inlet and outlet pipe 4, wherein the connecting rod 2 is installed on the surface of the hydraulic cylinder 1, the bushing 3 is installed below the bottom end of the hydraulic cylinder 1, the hydraulic cylinder 1 and the bushing 3 are of an integrated structure, the oil inlet and outlet pipe 4 is installed on the surface of the hydraulic cylinder 1, the hydraulic cylinder 1 comprises a cylinder body 1a, a piston rod 1b, an upper cylinder cover 1c, an oil inlet mechanism 1d, a buffering warning device 1e and a limiting bracket 1f, a piston rod 1b is arranged in the middle of the inside of the cylinder body 1a, the cylinder body 1a and the piston rod 1b are mechanically connected, an oil inlet mechanism 1d is installed on one end of the piston rod 1b, an upper cylinder cover 1c is arranged on the top end of the cylinder body 1a, the cylinder body 1a and the upper cylinder, inside bottom of cylinder body 1a have buffering warning device 1e, cylinder body 1a and buffering warning device 1e be connected, cylinder body 1a bottom have spacing support 1f, cylinder body 1a and spacing support 1f fixed connection.

Oil mechanism 1d by piston 1d1, buffering plunger 1d2, filter oil dirt mechanism 1d3, sealing mechanism 1d4, fender ring board 1d5 constitute, piston rod 1b one end on install piston 1d1, piston 1d1 bottom intermediate position on be equipped with buffering plunger 1d2, piston 1d1 and buffering plunger 1d2 fixed connection, buffering plunger 1d2 on be equipped with on the surface and filter oil dirt mechanism 1d3, buffering plunger 1d2 and filter oil dirt mechanism 1d3 adopt clearance fit, piston 1d1 on the surface install sealing mechanism 1d4, piston 1d1 on be equipped with fender ring board 1d5 on the top, piston 1d1 and fender ring board 1d5 be the integrated structure.

Filter oil dirt mechanism 1d3 constitute by rotary disk 1d31, water conservancy diversion leaf 1d32, filter screen 1d33, oil feed annular 1d34, race ring 1d35, the inside equidistance distribution of rotary disk 1d31 be equipped with the water conservancy diversion leaf 1d32 more than two, the inside intermediate position of rotary disk 1d31 on be equipped with race ring 1d35, rotary disk 1d31 and race ring 1d35 adopt clearance fit, race ring 1d35 and water conservancy diversion leaf 1d32 between be equipped with oil feed annular 1d34, water conservancy diversion leaf 1d32 one serve and install filter screen 1d 33.

The principle of the invention is as follows: when the piston rod 1b drives the piston 1d1 to rapidly work in the cylinder body 1a, the piston 1d1 drives the oil dirt filtering mechanism 1d3 to rotate with oil, when the piston 1d1 drives the rotating disc 1d31 to rotate upwards, the rotating disc 1d31 rotates clockwise and rotates by using the guide vane 1d32 to generate vortex, the oil passes through the filter screen 1d33 from the oil inlet ring groove 1d34 and then flows out of the rotating disc 1d31 from the guide vane 1d32, the oil dirt in the oil is filtered by the filter screen 1d33, when the piston 1d1 drives the rotating disc 1d31 to rotate downwards, the rotating disc 1d31 rotates counterclockwise, so that the oil enters from the guide vane 1d32 and carries the oil dirt on the filter screen 1d33 out of the cylinder body 1a, the rotating disc 1d31 utilizes the matching between the bearing ring 1d35 and the buffer plunger 1d2, and the rotating disc buffer 1d2 does not influence the rotating disc plunger 1d31 to rotate.

The method for solving the problems comprises the following steps: the pneumatic cylinder 1 utilizes the oil dirt filtering mechanism 1d3 to avoid oil dirt from adhering to the inner wall of the cylinder body 1a, so that the oil temperature is prevented from rising due to the fact that friction between the piston rod 1b and the cylinder body 1a is too fast, the sealing performance in the cylinder body 1a is reduced under the conditions of expansion with heat and contraction with cold, and the service life of the pneumatic cylinder 1 is influenced.

Example 2

Referring to fig. 1-7, the invention provides a piston rod oil cylinder, where the sealing mechanism 1d4 is composed of a sealing ring 1d41, arc-shaped clamping strips 1d42, and a push rod 1d43, four arc-shaped clamping strips 1d42 are equidistantly distributed on the inner side of the sealing ring 1d41, the sealing ring 1d41 is attached to the arc-shaped clamping strips 1d42, the surface of the inner side of the arc-shaped clamping strips 1d42 is provided with the push rod 1d43, and the arc-shaped clamping strips 1d42 are movably connected to the push rod 1d 43.

Buffering warning device 1e by buffer cylinder 1e1, lead to oil mouth 1e2, warning post 1e3 and constitute, buffer cylinder 1e1 bottom have warning post 1e3, buffer cylinder 1e1 and warning post 1e3 structure as an organic whole, buffer cylinder 1e1 on the surface be equipped with lead to oil mouth 1e 2.

The oil inlet and outlet pipe 4 is communicated with the cylinder body 1a through an oil through port 1e2, the buffering plunger 1d2 is in clearance fit with the rotating disc 1d31 through a bearing ring 1d35, and the warning column 1e3 is parallel to the limiting bracket 1f and is positioned on the same horizontal plane.

The principle of the invention is as follows: when the piston 1d1 and the inner wall of the cylinder body 1a rub for a long time, the outer wall of the sealing ring 1d41 is abraded, and the sealing performance is poor, the piston 1d1 drives the arc-shaped clamping strip 1d42 to eject the sealing ring 1d41 outwards by using the ejector rod 1d43, so that the sealing ring 1d41 can prolong the service life, and when the inside of the hydraulic cylinder 1 is in a problem, the buffer plunger 1d2 can impact the buffer cylinder 1e1, so that the buffer cylinder 1e1 slides out of the hydraulic cylinder 1, a user can observe whether the warning column 1e3 is moved out of the hydraulic cylinder 1 from the outside, further judge whether the hydraulic cylinder 1 leaks, and the limiting bracket 1f is used for stopping the buffer cylinder 1e1 from dropping.

The method for solving the problems comprises the following steps: the hydraulic cylinder 1 utilizes the sealing mechanism 1d4 to prolong the service life of the sealing ring 1d41 and the sealing mechanism itself, improve the sealing performance in the hydraulic cylinder 1, judge whether the hydraulic cylinder 1 leaks or not through the buffer warning device 1e, and avoid the occurrence of accidents in the use of the hydraulic cylinder 1.

While there have been shown and described what are at present considered the fundamental principles of the invention, the essential features and advantages thereof, it will be understood by those skilled in the art that the present invention is not limited by the embodiments described above, which are merely illustrative of the principles of the invention, but rather, is capable of numerous changes and modifications in various forms without departing from the spirit or essential characteristics thereof, and it is intended that the invention be limited not by the foregoing descriptions, but rather by the appended claims and their equivalents.

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 piston rod leads to oil cylinder, its structure includes pneumatic cylinder (1), connecting rod (2), bush (3), business turn over oil pipe (4), pneumatic cylinder (1) install connecting rod (2) on the surface, pneumatic cylinder (1) bottom have bush (3), pneumatic cylinder (1) and bush (3) structure as an organic whole, pneumatic cylinder (1) be equipped with business turn over oil pipe (4) on the surface, its characterized in that:

the hydraulic cylinder (1) consists of a cylinder body (1a), a piston rod (1b), an upper cylinder cover (1c), an oil passing mechanism (1d), a buffering warning device (1e) and a limiting bracket (1f), a piston rod (1b) is arranged in the middle position in the cylinder body (1a), the cylinder body (1a) is mechanically connected with the piston rod (1b), one end of the piston rod (1b) is provided with an oil passing mechanism (1d), the top end of the cylinder body (1a) is provided with an upper cylinder cover (1c), the cylinder body (1a) is movably connected with the upper cylinder cover (1c), a buffering warning device (1e) is arranged below the bottom end in the cylinder body (1a), cylinder body (1a) and buffering warning device (1e) be connected, cylinder body (1a) bottom under be equipped with spacing support (1f), cylinder body (1a) and spacing support (1f) fixed connection.

2. The piston rod oil cylinder according to claim 1, characterized in that: the oil passing mechanism (1d) consists of a piston (1d1), a buffering plunger (1d2), an oil dirt filtering mechanism (1d3), a sealing mechanism (1d4) and a baffle ring plate (1d5), a piston (1d1) is arranged at one end of the piston rod (1b), a buffer plunger (1d2) is arranged at the middle position of the bottom end of the piston (1d1), the piston (1d1) is fixedly connected with the buffering plunger (1d2), the surface of the buffering plunger (1d2) is provided with an oil dirt filtering mechanism (1d3), the buffer plunger (1d2) and the oil dirt filtering mechanism (1d3) adopt clearance fit, the piston (1d1) surface on install sealing mechanism (1d4), piston (1d1) top on be equipped with ring baffle (1d5), piston (1d1) and ring baffle (1d5) structure as an organic whole.

3. The piston rod oil cylinder according to claim 2, characterized in that: filter oil dirt mechanism (1d3) constitute by rotary disk (1d31), water conservancy diversion leaf (1d32), filter screen (1d33), oil feed annular (1d34), bearing circle (1d35), rotary disk (1d31) inside equidistance distribute and be equipped with water conservancy diversion leaf (1d32) more than two, rotary disk (1d31) inside intermediate position on be equipped with bearing circle (1d35), rotary disk (1d31) and bearing circle (1d35) adopt clearance fit, bearing circle (1d35) and water conservancy diversion leaf (1d32) between be equipped with oil feed annular (1d34), water conservancy diversion leaf (1d32) one end on install filter screen (1d 33).

4. The piston rod oil cylinder according to claim 2, characterized in that: sealing mechanism (1d4) constitute by sealing washer (1d41), arc holding strip (1d42), ejector pin (1d43), inboard equidistance distribution of sealing washer (1d41) be equipped with four arc holding strip (1d42), sealing washer (1d41) and arc holding strip (1d42) laminate mutually, arc holding strip (1d42) inboard on the surface be equipped with ejector pin (1d43), arc holding strip (1d42) and ejector pin (1d43) swing joint.

5. The piston rod oil cylinder according to claim 1, characterized in that: buffering warning device (1e) constitute by a buffer cylinder (1e1), logical hydraulic fluid port (1e2), warning post (1e3), a buffer cylinder (1e1) bottom have warning post (1e3), a buffer cylinder (1e1) and warning post (1e3) structure as an organic whole, a buffer cylinder (1e1) on the surface be equipped with logical hydraulic fluid port (1e 2).