CN213511450U

CN213511450U - Swing oil cylinder with opening end and terminal provided with buffer structure

Info

Publication number: CN213511450U
Application number: CN202022732232.XU
Authority: CN
Inventors: 刘科良; 于华忠; 孙军龙; 王云龙; 王宏义; 王志江
Original assignee: Weihai Kaite Hydraulic Technology Co ltd
Current assignee: Weihai Kaite Hydraulic Technology Co ltd
Priority date: 2020-11-23
Filing date: 2020-11-23
Publication date: 2021-06-22
Anticipated expiration: 2030-11-23

Abstract

The utility model belongs to the technical field of the swing hydro-cylinder, especially, be a swing hydro-cylinder of opening end and terminal area buffer structure. The oil-water separation device comprises a barrel body, a rear end cover is installed on the lower end face of the barrel body, a central shaft is connected to the upper end face of the barrel body in a penetrating mode, a first protruding block is fixedly connected to the outer wall of the central shaft, a second protruding block is fixedly connected to the upper end face of the rear end cover, a first oil port and a second oil port are formed in the left side of the barrel body, a first large oil hole and a first small oil hole are formed in the inner wall and the right side of the first protruding block respectively, a second large oil hole and a second small oil hole are formed in the inner wall and the right side of the second protruding block respectively, an intermediate sleeve is installed between the central shaft and the. The utility model discloses a center sleeve reciprocates, drives during the rebound and goes up the sprue and block up the first big oilhole, drives the sprue and blocks up the big oilhole of second down during the rebound to remain two little oilholes oil returns respectively, thereby reach the speed reduction purpose.

Description

Swing oil cylinder with opening end and terminal provided with buffer structure

Technical Field

The utility model relates to a swing hydro-cylinder technical field, concretely relates to open end and terminal area buffer structure's swing hydro-cylinder.

Background

The rack-and-pinion formula passes through hydraulic pressure power promotion both sides piston motion, moves about the rack and moves, and the rack drives the jackshaft, makes the rotation of axes, advantage: the gear-rack type swing oil cylinder is simple to manufacture and low in cost; the existing swing oil cylinder has no buffer function, and has large impact when rotating to a terminal position when meeting the working condition of high rotating speed or large load.

Disclosure of Invention

For solving the technical problem that exists among the prior art, the utility model provides an open end and terminal area buffer structure's swing hydro-cylinder has increased buffer gear, can realize starting end and terminal slow rotation, and the quick pivoted purpose of mid portion, and then automatic deceleration when the hydro-cylinder starts and stops realizes buffer function.

In order to achieve the above object, the utility model provides a following technical scheme: a swing oil cylinder with a buffering structure at an opening end and a terminal comprises a cylinder body, wherein a rear end cover is installed on the lower end face of the cylinder body, a central shaft is connected on the upper end face of the cylinder body in a penetrating manner, the lower end of the central shaft is connected with the rear end cover in a penetrating manner, a first lug is fixedly connected to the outer wall of the central shaft, the outer wall of the first lug is abutted to the inner wall of the cylinder body, a second lug is fixedly connected to the upper end face of the rear end cover, the outer wall of the second lug is abutted to the inner wall of the cylinder body, a first oil port and a second oil port are formed in the left side of the cylinder body from top to bottom, a first large oil hole is formed in the inner wall of the first lug, the right end of the first large oil hole is communicated with the first oil port, a first small oil hole is formed in the lower end face of the first lug, the upper end of the first small oil hole is communicated with the first large oil hole, a, the lower end of the second small oil hole is communicated with the second large oil hole, the outer wall of the central shaft is meshed with a middle sleeve through a gear, the outer wall of the middle sleeve is meshed with a supporting block through a gear, the outer wall of the supporting block is fixedly connected with the inner wall of the barrel, and the upper end and the lower end of the middle sleeve are fixedly connected with an upper blocking block and a lower blocking block respectively.

Keep sealed between the cover and the barrel when removing in order to make, conduct the utility model relates to an it is preferred to open end and terminal area buffer structure's swing hydro-cylinder, and the fixed cover of outer wall of middle cover has connect first sealing washer, and the outer wall of first sealing washer is inlayed and is had first sealing strip, the outer lane of first sealing strip and the inner wall swing joint of barrel.

Keep sealed between the cover removal and the center pin in the middle of in order to make, conduct the utility model relates to an open end and terminal area buffer structure's swing hydro-cylinder preferred, the inner wall fixed connection second sealing washer of cover in the middle, the inner circle of second sealing washer is inlayed and is had the second sealing strip, the inner circle of second sealing strip and the outer wall swing joint of center pin.

For conveniently block up first big oilhole and first little oilhole completely, conduct the utility model relates to an it is preferred to open end and terminal area buffer structure's swing hydro-cylinder, goes up the high the same with first lug of sprue.

For conveniently block up the big oilhole of second and the little oilhole of second completely, conduct the utility model relates to an it is preferred to open end and terminal area buffer structure's swing hydro-cylinder, the highly the same of lower sprue and second lug.

Compared with the prior art, the utility model discloses possess following beneficial effect:

1. this kind of open end and terminal area buffer structure's swing hydro-cylinder, hydraulic oil gets into inner chamber on the barrel through first hydraulic fluid port, and then promotes middle cover downstream, when middle cover removes, drives the center pin through two sets of helical gears and is clockwise rotation, when middle cover removes rear end cap department, the big oilhole of second on the rear end cap is covered gradually to lower sprue to remain the little oilhole oil return of second, the fluid of backward flow produces pressure to middle cover, and then reaches the mesh of slowing down.

2. This kind of open end and terminal area buffer structure's swing hydro-cylinder, hydraulic oil get into the cavity below the barrel through the second hydraulic fluid port, and the counter clockwise turning is done to the center pin, and middle cover moves to the upper end of center pin outer wall, and then drives the sprue and shifts up and cover first big oilhole gradually, remains first little oilhole oil return simultaneously to reach the mesh of slowing down.

3. The utility model discloses increased buffer gear, can realize starting end and the terminal slow rotation, and the quick pivoted purpose of mid portion, and then automatic deceleration when the hydro-cylinder starts and stops realizes buffer function.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic sectional view of a swing cylinder of the present invention;

FIG. 2 is an enlarged schematic view of the present invention at A in FIG. 1;

fig. 3 is an enlarged schematic view of the point B in fig. 1 according to the present invention.

The symbols in the figures indicate:

1. a barrel; 101. a first oil port; 102. a second oil port; 103. a support block; 2. a central shaft; 3. a first bump; 301. a first large oil hole; 302. a first small oil hole; 4. a rear end cap; 5. a second bump; 501. a second large oil hole; 502. a second small oil hole; 6. a middle sleeve; 601. a first seal ring; 602. a first seal strip; 603. an upper plugging block; 7. a second seal ring; 701. a second seal strip; 702. and (4) a lower blocking block.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

Referring to fig. 1-3, the present invention provides the following technical solutions: the utility model provides an open end and terminal area buffer structure's swing hydro-cylinder, including barrel 1, rear end cap 4 is installed to the lower terminal surface of barrel 1, the up end through connection of barrel 1 has center pin 2, the lower extreme and the rear end cap 4 through connection of center pin 2, the first lug 3 of the outer wall fixedly connected with of center pin 2, the outer wall of first lug 3 and the inner wall butt of barrel 1, the up end fixedly connected with second lug 5 of rear end cap 4, the outer wall of second lug 5 and the inner wall butt of barrel 1.

The left side of the cylinder body 1 is provided with a first oil port 101 and a second oil port 102 from top to bottom, the inner wall of the first bump 3 is provided with a first large oil hole 301, the right end of the first large oil hole 301 is communicated with the first oil port 101, the lower end face of the first bump 3 is provided with a first small oil hole 302, the upper end of the first small oil hole 302 is communicated with the first large oil hole 301, the inner wall of the second bump 5 is provided with a second large oil hole 501, the right end of the second large oil hole 501 is communicated with the second oil port 102, the upper end face of the second bump 5 is provided with a second small oil hole 502, the lower end of the second small oil hole 502 is communicated with the second large oil hole 501, the outer wall of the central shaft 2 is engaged with a middle sleeve 6 through a gear, the outer wall of the middle sleeve 6 is engaged with a support block 103 through a gear, the outer wall of the support block 103 is fixedly connected with the inner wall of the cylinder body 1, and the upper.

In this embodiment: hydraulic oil enters an upper inner cavity of the cylinder body 1 (oil cylinder) through the first oil port 101 to further push the middle sleeve 6 to move downwards, the middle sleeve 6 drives the central shaft 2 to rotate clockwise through the two sets of bevel gears while moving, when the middle sleeve 6 moves to the rear end cover 4, the lower blocking block 702 gradually covers the second large oil hole 501 in the rear end cover 4, oil return of the second small oil hole 502 is reserved, and the returned oil generates pressure on the middle sleeve 6, so that the aim of speed reduction is achieved; hydraulic oil enters a cavity below the cylinder body 1 (oil cylinder) through the second oil port 102, the central shaft 2 rotates anticlockwise, the middle sleeve 6 moves to the upper end of the outer wall of the central shaft 2, the upper blocking block 603 is driven to move upwards and cover the first big oil hole 301 gradually, and meanwhile the first small oil hole 302 is reserved for oil return, so that the purpose of speed reduction is achieved.

As a technical optimization scheme of the utility model, the fixed cover of outer wall of middle cover 6 has connect first sealing washer 601, and the outer wall of first sealing washer 601 is inlayed and is had first sealing strip 602, and the inner wall fixed connection second sealing washer 7 of middle cover 6, the inner circle of second sealing washer 7 are inlayed and are had second sealing strip 701, the inner circle of second sealing strip 701 and the outer wall swing joint of center pin 2.

In this embodiment: when the middle sleeve 6 moves upwards, oil on the upper side inside the cylinder 1 is extruded, so that the oil is discharged through the first oil port 101, and the oil on the upper cavity of the cylinder 1 can be prevented from flowing into the lower cavity of the cylinder 1 by arranging the first sealing ring 601 and the first sealing strip 602; when the middle sleeve 6 moves downwards, oil on the lower side inside the barrel body 1 is extruded, the oil is discharged through the second oil port 102, the second sealing ring 7 and the second sealing strip 701 are arranged, the oil in the lower cavity of the barrel body 1 can be prevented from flowing into the upper cavity of the barrel body 1, and accordingly the normal internal pressure of the barrel body 1 is guaranteed.

As a technical optimization scheme of the utility model, it is the same with the height of first lug 3 to go up sprue 603, and lower sprue 702 is the same with the height of second lug 5.

In this embodiment: when the upper end of the upper block 603 moves to the uppermost side of the cylinder 1, the right side of the upper block 603 and the upper end surface of the first seal ring 601 block the first large oil hole 301 and the first small oil hole 302, respectively, and when the lower end of the lower block 702 moves to the upper surface of the rear end cover 4, the right side of the lower block 702 completely blocks the second large oil hole 501, so that the intermediate sleeve 6 reciprocates.

The utility model discloses a theory of operation and use flow: hydraulic oil enters an upper inner cavity of the cylinder body 1 (oil cylinder) through the first oil port 101 to further push the middle sleeve 6 to move downwards, the middle sleeve 6 drives the central shaft 2 to rotate clockwise through the two sets of bevel gears while moving, when the middle sleeve 6 moves to the rear end cover 4, the lower blocking block 702 gradually covers the second large oil hole 501 in the rear end cover 4, oil return of the second small oil hole 502 is reserved, and the returned oil generates pressure on the middle sleeve 6, so that the aim of speed reduction is achieved; hydraulic oil enters a cavity below the cylinder body 1 (oil cylinder) through the second oil port 102, the central shaft 2 rotates anticlockwise, the middle sleeve 6 moves to the upper end of the outer wall of the central shaft 2, the upper blocking block 603 is driven to move upwards and cover the first big oil hole 301 gradually, and meanwhile the first small oil hole 302 is reserved for oil return, so that the purpose of speed reduction is achieved.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. In addition, in the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides an open end and terminal area buffer structure's swing hydro-cylinder, it includes the barrel, its characterized in that: a rear end cover is mounted on the lower end face of the barrel, a central shaft is connected to the upper end face of the barrel in a penetrating manner, the lower end of the central shaft is connected to the rear end cover in a penetrating manner, a first projection is fixedly connected to the outer wall of the central shaft, the outer wall of the first projection is abutted to the inner wall of the barrel, a second projection is fixedly connected to the upper end face of the rear end cover, the outer wall of the second projection is abutted to the inner wall of the barrel, a first oil port and a second oil port are formed in the left side of the barrel from top to bottom, a first large oil hole is formed in the inner wall of the first projection, the right end of the first large oil hole is communicated with the first oil port, a first small oil hole is formed in the lower end face of the first projection, the upper end of the first small oil hole is communicated with the first large oil hole, a second large oil hole is formed in the inner wall of the second projection, the right end of the second large oil, the lower end of the second small oil hole is communicated with the second large oil hole, the outer wall of the central shaft is meshed with a middle sleeve through a gear, the outer wall of the middle sleeve is meshed with a supporting block through a gear, the outer wall of the supporting block is fixedly connected with the inner wall of the barrel, and the upper end and the lower end of the middle sleeve are fixedly connected with an upper blocking block and a lower blocking block respectively.

2. The swing cylinder with the buffering structure at the opening end and the terminal end as claimed in claim 1, wherein: the outer wall of the middle sleeve is fixedly sleeved with a first sealing ring, a first sealing strip is embedded in the outer wall of the first sealing ring, and the outer ring of the first sealing strip is movably connected with the inner wall of the barrel.

3. The swing cylinder with the buffering structure at the opening end and the terminal end as claimed in claim 1, wherein: the inner wall of the middle sleeve is fixedly connected with a second sealing ring, a second sealing strip is embedded in the inner ring of the second sealing ring, and the inner ring of the second sealing strip is movably connected with the outer wall of the central shaft.

4. The swing cylinder with the buffering structure at the opening end and the terminal end as claimed in claim 1, wherein: the upper blocking block is as high as the first bump.

5. The swing cylinder with the buffering structure at the opening end and the terminal end as claimed in claim 1, wherein: the lower blocking block and the second bump are the same in height.