CN217682579U

CN217682579U - Novel hydraulic cylinder uide bushing

Info

Publication number: CN217682579U
Application number: CN202221856578.3U
Authority: CN
Inventors: 王明泉; 赵增元; 李基成
Original assignee: Yantai Rongye Machinery Equipment Co ltd
Current assignee: Yantai Rongye Machinery Equipment Co ltd
Priority date: 2022-07-19
Filing date: 2022-07-19
Publication date: 2022-10-28
Anticipated expiration: 2032-07-19

Abstract

The utility model relates to the technical field of hydraulic workpieces, and discloses a novel hydraulic oil cylinder guide sleeve, which comprises a hydraulic oil cylinder body, wherein a guide sleeve body is embedded at the top of an inner cavity of the hydraulic oil cylinder body, an annular ring is embedded at the inner side of the guide sleeve body, an inner groove is formed in the inner cavity of the annular ring, an outer groove is integrally processed on the surface of the annular ring, a plurality of air holes are formed in the surface of the outer groove, the air holes are communicated with the inner groove, a miniature air pump is fixed around the inner cavity of the guide sleeve body, an output shaft of the miniature air pump is communicated with a first air pipe, and the first air pipe penetrates through the guide sleeve body and is communicated with the outer side of the hydraulic oil cylinder body; the utility model discloses added the miniature air pump that is used for forming the air film in the uide bushing body, at piston rod and uide bushing relative displacement in-process cooperation lubricating oil, be used for reducing the frictional force between piston rod and the uide bushing to improve the life of piston rod, reduce the frequency that the staff changed lubricating oil.

Description

Novel hydraulic cylinder uide bushing

Technical Field

The utility model relates to a hydraulic pressure work piece technical field specifically is a novel hydraulic cylinder uide bushing.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion. It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder basically comprises a cylinder barrel, a cylinder cover, a piston rod, a guide sleeve, a buffering device and an exhaust device, wherein the guide sleeve is a common component for ensuring the normal operation of the hydraulic cylinder and has a guide function on the stroke of the hydraulic cylinder in the movement process.

The uide bushing is as comparatively common part in the pneumatic cylinder, often use and do reciprocating motion at hydraulic cylinder head auxiliary piston rod, at the piston rod at present with the uide bushing repeated relative motion in-process, can lead to the piston rod to produce wearing and tearing because frictional force exists, and present piston rod only uses lubricating oil to alleviate frictional force usually, improve the life of pneumatic cylinder, but in the hydraulic oil use, still there is certain frictional force, produce certain iron fillings easily, need often to change lubricating oil, be unfavorable for the use of piston rod.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel hydraulic cylinder uide bushing has added the miniature air pump that is used for forming the air film in the uide bushing body, cooperates lubricating oil at piston rod and uide bushing relative displacement in-process, is used for reducing the frictional force between piston rod and the uide bushing, reduces the frequency that the staff changed lubricating oil.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel hydraulic cylinder uide bushing, includes the hydraulic cylinder body, the top of hydraulic cylinder body inner chamber is inlayed and is had the uide bushing body, the inboard of uide bushing body is inlayed and is had the annular ring, the inside groove has been seted up to the inner chamber of annular ring, the surface integrated into one piece of annular ring has the kerve, a plurality of gas pocket has been seted up on the surface of kerve, the gas pocket communicates to the inside groove, uide bushing body inner chamber all is fixed with miniature air pump all around, the output shaft intercommunication of miniature air pump has first trachea, first trachea runs through the uide bushing body and communicates to the outside of hydraulic cylinder body, the opposite side intercommunication of miniature air pump output shaft has the second trachea, the second trachea communicates to inside groove.

Preferably, the longitudinal section of the outer tank is square, and the longitudinal section of the inner tank is concave.

Preferably, an upper oil seal is inlaid above the inner side of the guide sleeve body, and a lower oil seal is inlaid below the inner side of the guide sleeve body.

Preferably, the periphery of the inner side of the guide sleeve body is communicated with an oil guide pipe, one side of the oil guide pipe is communicated with the upper side of the upper oil seal, and the other side of the oil guide pipe is communicated with the lower side of the lower oil seal.

Preferably, the number of the oil guide pipes is 8, and the oil guide pipes are uniformly distributed among the micro air pumps.

Preferably, the number of the air holes is several, and the air holes are distributed on the surface of the outer groove at equal intervals.

Preferably, the number of the micro air pumps is 4, and the micro air pumps are distributed in the inner cavity of the annular ring at equal intervals.

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

the utility model discloses added the miniature air pump that is used for forming the air film in the uide bushing body, at piston rod and uide bushing relative displacement in-process cooperation lubricating oil, be used for reducing the frictional force between piston rod and the uide bushing to improve the life of piston rod, reduce the frequency that the staff changed lubricating oil, solved at present in the pneumatic cylinder use, only used lubricating oil to reduce partial frictional force and leaded to piston rod life low and the problem that need the high frequency to change lubricating oil.

Drawings

Fig. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic view of a partial three-dimensional structure of the present invention;

FIG. 3 is a schematic view of a partial three-dimensional structure of the present invention;

FIG. 4 is a schematic view of a partial three-dimensional structure of the present invention;

FIG. 5 is a schematic view of a partial three-dimensional structure of the present invention;

fig. 6 is a schematic view of a partial three-dimensional structure of the present invention.

In the figure: 1. a hydraulic cylinder body; 2. a first air pipe; 3. a guide sleeve body; 4. mounting an oil seal; 5. a lower oil seal; 6. an annular ring; 7. a micro air pump; 8. a second air pipe; 9. an oil guide pipe; 10. an inner tank; 11. an outer tank; 12. and (4) air holes.

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.

Please refer to fig. 1-6, a novel hydraulic cylinder guide sleeve, including the hydraulic cylinder body 1, the top of the inner chamber of the hydraulic cylinder body 1 is inlaid with the guide sleeve body 3, the inner side of the guide sleeve body 3 is inlaid with the annular ring 6, the inner chamber of the annular ring 6 is provided with the inner groove 10, the surface of the annular ring 6 is integrally processed with the outer groove 11, the surface of the outer groove 11 is provided with a plurality of air holes 12, the air holes 12 are communicated to the inner groove 10, the periphery of the inner chamber of the guide sleeve body 3 is fixed with the micro air pump 7, the output shaft of the micro air pump 7 is communicated with the first air pipe 2, the first air pipe 2 penetrates through the guide sleeve body 3 and is communicated to the outside of the hydraulic cylinder body 1, the other side of the output shaft of the micro air pump 7 is communicated with the inner groove 10, the utility model adds the micro air pump 7 for forming the air film in the guide sleeve body 3, and the lubricating oil is matched in the relative displacement process of the piston rod and the guide sleeve, so as to reduce the friction force between the piston rod and the service life of the piston rod, thus improving the service life of the piston rod, reducing the frequency of the lubricating oil changing, and solving the problem that only the friction of the high frequency of the lubricating oil changing of the hydraulic cylinder and the piston rod.

In the embodiment, the longitudinal section of the outer groove 11 is square, and the longitudinal section of the inner groove 10 is concave, so that when the micro air pump 7 works, the air flow is firstly introduced into the inner groove 10 and generates a certain pressure in the inner groove 10 to blow the air hole 12, and when the hydraulic rod and the guide sleeve body 3 move relatively, an air film is formed to reduce the friction force between the guide sleeve body 3 and the hydraulic rod.

The inboard top of uide bushing body 3 is inlayed and is had last oil blanket 4, and the inboard below of uide bushing body 3 is inlayed and is had lower oil blanket 5, and in this embodiment, through last oil blanket 4 and lower oil blanket 5's setting, be convenient for in the use of hydraulic cylinder body 1, make lubricating oil can't go into in the second trachea 8, avoid leading-in 11 outer grooves of the unable air current that leads to miniature air pump 7 to produce to influence the use of miniature air pump 7.

The inboard intercommunication all around of uide bushing body 3 has oil pipe 9, and oil pipe 9 is led to one side intercommunication to the upside of supreme oil blanket 4, and oil pipe 9's opposite side communicates to the downside of oil blanket 5 down, and in this embodiment, through oil pipe 9's setting, when hydraulic cylinder body 1 used, lubricating oil can follow and lead in oil pipe 9 and pass through, avoids lubricating oil can't lubricate hydraulic cylinder body 1.

The number of the oil guide pipes 9 is 8, and the oil guide pipes are uniformly distributed among the micro air pumps 7. In this embodiment, by setting the number of the oil guide pipes 9, when the lubricating oil works in the hydraulic cylinder body 1, the lubricating oil can fully and uniformly pass through the oil guide pipes 9 to play a role.

The quantity of gas pocket 12 is a plurality of, and the equidistance distributes on the surface of outer tank 11, in this embodiment, through the setting to gas pocket 12 quantity, when using miniature air pump 7, can make the air current spout from interior groove 10 uniformly to the gas mould that forms on outer tank 11 surface also can be relatively even, reaches the stability of increasing hydraulic cylinder body 1 during operation.

The quantity of miniature air pump 7 is 4, and the equidistance distributes in the inner chamber of annular ring 6, in this embodiment, through the setting to miniature air pump 7 quantity and position, when the staff used miniature air pump 7, can make the air current that its produced balanced relatively in inside groove 10, increase the stability of miniature air pump 7 during operation, reinforcing miniature air pump 7's practicality.

The working principle is as follows: when using hydraulic cylinder body 1, at the in-process that the hydraulic stem removed, carry out the guide effect to the hydraulic stem through uide bushing body 3, and when the relative uide bushing body 3 of hydraulic stem moved, can produce certain frictional force, use lubricating oil to lubricate the hydraulic stem usually, thereby reduce frictional force the utility model discloses in, use hydraulic cylinder body 1 at the staff, when the hydraulic stem carries out relative displacement and produces frictional force with uide bushing body 3, then hydraulic cylinder body 1 can open miniature air pump 7, under the effect of miniature air pump 7, the air current enters into inside groove 10 from first trachea 2, and produce the high pressure and erupt from gas pocket 12, and form the air current membrane in uide bushing body 3 and hydraulic stem relative displacement department, thereby reduce the frictional force of hydraulic stem and uide bushing body 3, reduce the wearing and tearing of hydraulic stem, improve the life of hydraulic stem, and lubricating oil can follow oil guide pipe 9 and pass through, can not influence the original effect of lubricating oil.

It should be noted that, in this document, relational terms such as first and second, and the like are 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 a … …" does not exclude the presence of another identical element 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

1. The utility model provides a novel hydraulic cylinder uide bushing, includes hydraulic cylinder body (1), its characterized in that: the hydraulic cylinder is characterized in that a guide sleeve body (3) is inlaid at the top of an inner cavity of the hydraulic cylinder body (1), an annular ring (6) is inlaid on the inner side of the guide sleeve body (3), an inner groove (10) is formed in the inner cavity of the annular ring (6), an outer groove (11) is integrally formed in the surface of the annular ring (6), a plurality of air holes (12) are formed in the surface of the outer groove (11), the air holes (12) are communicated with the inner groove (10), miniature air pumps (7) are fixed on the periphery of the inner cavity of the guide sleeve body (3), output shafts of the miniature air pumps (7) are communicated with first air pipes (2), the first air pipes (2) penetrate through the guide sleeve body (3) and are communicated to the outer side of the hydraulic cylinder body (1), the other sides of the output shafts of the miniature air pumps (7) are communicated with second air pipes (8), and the inner groove (10) is communicated with the second air pipes (8).

2. The novel hydraulic oil cylinder guide sleeve is characterized in that: the longitudinal section of the outer groove (11) is square, and the longitudinal section of the inner groove (10) is concave.

3. The novel hydraulic oil cylinder guide sleeve is characterized in that: the top of uide bushing body (3) inboard is inlayed and is had oil blanket (4), the below of uide bushing body (3) inboard is inlayed and is had lower oil blanket (5).

4. The novel hydraulic oil cylinder guide sleeve is characterized in that: the periphery of the inner side of the guide sleeve body (3) is communicated with an oil guide pipe (9), one side of the oil guide pipe (9) is communicated with the upper side of the upper oil seal (4), and the other side of the oil guide pipe (9) is communicated with the lower side of the lower oil seal (5).

5. The novel hydraulic oil cylinder guide sleeve is characterized in that: the number of the oil guide pipes (9) is 8, and the oil guide pipes are uniformly distributed among the micro air pumps (7).

6. The novel hydraulic oil cylinder guide sleeve is characterized in that: the number of the air holes (12) is a plurality, and the air holes are distributed on the surface of the outer groove (11) at equal intervals.

7. The novel hydraulic oil cylinder guide sleeve is characterized in that: the number of the micro air pumps (7) is 4, and the micro air pumps are distributed in the inner cavity of the annular ring (6) at equal intervals.