CN215333718U - Positive pressure control circulation system - Google Patents
Positive pressure control circulation system Download PDFInfo
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- CN215333718U CN215333718U CN202120032757.4U CN202120032757U CN215333718U CN 215333718 U CN215333718 U CN 215333718U CN 202120032757 U CN202120032757 U CN 202120032757U CN 215333718 U CN215333718 U CN 215333718U
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Abstract
The utility model discloses a positive pressure control circulating system which comprises a hydraulic rack cylinder, a first hydraulic port, a second hydraulic port, a first oil liquid pipe, a second oil liquid pipe and a piston, wherein the top and the bottom of two ends of the hydraulic rack cylinder are respectively provided with the first hydraulic port and the second hydraulic port, the first oil liquid pipe is respectively connected onto the first hydraulic port, the end part of the first oil liquid pipe is connected with a first three-way valve through a flange, the end part of the second oil liquid pipe is connected with a second three-way valve through a flange, the liquid outlet end of the first three-way valve is connected with a first connecting pipe, and the liquid outlet end of the second three-way valve is connected with a second connecting pipe. The whole positive pressure control circulation system has high stability in use, can help personnel to adjust the hydraulic flow velocity, has a good buffer mechanism, is durable, has small friction force, has stable buffering effectiveness at the bottom of the damage to the cylinder body, cannot cause the problems of buffering failure and cylinder scratch, and has higher practicability.
Description
Technical Field
The utility model relates to the technical field of hydraulic pressure, in particular to a positive pressure control circulating system.
Background
When the existing hydraulic system of the rack cylinder works, after the stroke is in place, the common buffer is gap buffer, and the buffer effect is realized by the clearance fit of the buffer sleeve and the cylinder bottom. After long-time work, the buffer sleeve rubs with the cylinder tail, so that the buffer sleeve and the cylinder tail are seriously abraded, even the phenomenon of scraps appears, finally the cylinder barrel is scratched, the rack cylinder cannot normally work, the problems of buffer failure and cylinder barrel scratching of the rack cylinder after long-time use cannot be avoided, the durable buffer mechanism is lacked, and when different hydraulic motions are needed, a part for assisting the cylinder body to change the hydraulic flow speed is lacked. Therefore, the rack cylinder with good buffering effect is provided. To this end, we propose a positive pressure control circulation system.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims to provide a positive pressure control circulating system which can effectively solve the problems in the background technology.
In order to achieve the purpose, the utility model adopts the technical scheme that:
the utility model provides a malleation control circulation system, includes hydraulic pressure rack cylinder, first hydraulic pressure mouth, second hydraulic pressure mouth, first oil liquid pipe, second oil liquid pipe and piston, first hydraulic pressure mouth and second hydraulic pressure mouth have been seted up respectively to the top and the bottom at hydraulic pressure rack cylinder both ends, be connected with first oil liquid pipe on the first hydraulic pressure mouth respectively, there is first three-way valve the tip of first oil liquid pipe through flange joint, there is the second three-way valve the tip of second oil liquid pipe through flange joint, the play liquid end of first three-way valve is connected with first connecting pipe, the play liquid end of second three-way valve is connected with the second connecting pipe.
Furthermore, a rack is arranged in the hydraulic rack cylinder, pistons are respectively installed at two ends of the rack through bolts, rotating teeth are installed on one side in the hydraulic rack cylinder through bearings, and the rack is meshed with the rotating teeth.
Furthermore, both ends are equipped with the buffer board that corresponds with the piston respectively in the hydraulic rack jar, buffer board one side is equipped with the spring, the spring both ends are welded respectively with buffer board and hydraulic rack jar and are established the connection.
Further, the first oil liquid pipe and the second oil liquid pipe are respectively provided with a throttle valve through flanges.
Compared with the prior art, the utility model has the following beneficial effects:
1. through the hydraulic pressure mouth of seting up hydraulic rack cylinder both ends top and bottom, the realization is adjusted the hydraulic pressure velocity of flow at hydraulic rack cylinder both ends, and during the use, personnel assemble first oil liquid pipe and second oil liquid pipe respectively to first hydraulic pressure mouth and second hydraulic pressure mouth, and be connected first oil liquid pipe and second oil liquid pipe and hydraulic pump respectively through first three-way valve and second three-way valve, make the inside hydraulic pressure of hydraulic rack cylinder realize the circulation, and personnel adjust the hydraulic pressure velocity of the hydraulic pressure mouth of hydraulic rack cylinder both ends top and bottom respectively through the choke valve, and personnel's accessible choke valve reduces or closes one of them oil liquid pipe of first hydraulic pressure mouth and second hydraulic pressure mouth, make the inside fluid velocity of flow of hydraulic rack cylinder reduce, thereby change the rotational speed of the work of hydraulic rack cylinder.
2. Through the setting of buffer board and spring, can effectively cushion the piston of the inside removal of hydraulic rack jar to reduce the fish tail wearing and tearing problem of piston to hydraulic rack jar, whole malleation control circulation system stability in use is high, can help personnel to adjust hydraulic flow velocity, has good buffer gear, durable, frictional force is little, at the bottom of the injury to the cylinder body, the buffering ageing is stable, the problem of buffering inefficacy, cylinder fish tail can not appear, has higher practicality.
Drawings
Fig. 1 is a schematic cross-sectional view of a positive pressure control circulation system according to the present invention.
Fig. 2 is a schematic structural diagram of a positive pressure control circulation system according to the present invention.
Fig. 3 is a schematic view of a buffer plate structure of a positive pressure control circulation system according to the present invention.
In the figure: 1. a hydraulic rack cylinder; 2. a rack; 3. a piston; 4. rotating the teeth; 5. a spring; 6. a buffer plate; 7. a first hydraulic port; 8. a first oil liquid pipe; 9. a first three-way valve; 10. a first connecting pipe; 11. a second hydraulic port; 12. a second oil liquid pipe; 13. a second connecting pipe; 14. a second three-way valve; 15. a throttle valve.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.
As shown in fig. 1 to 3, a positive pressure control circulation system includes a hydraulic rack cylinder 1, a first hydraulic port 7, a second hydraulic port 11, a first oil liquid pipe 8, a second oil liquid pipe 12 and a piston 3, the first hydraulic port 7 and the second hydraulic port 11 are respectively disposed at the top and the bottom of the two ends of the hydraulic rack cylinder 1, the first oil liquid pipe 8 is respectively connected to the first hydraulic port 7, the end of the first oil liquid pipe 8 is connected to a first three-way valve 9 through a flange, the end of the second oil liquid pipe 12 is connected to a second three-way valve 14 through a flange, the liquid outlet of the first three-way valve 9 is connected to a first connection pipe 10, and the liquid outlet of the second three-way valve 14 is connected to a second connection pipe 13.
The hydraulic rack cylinder is characterized in that a rack 2 is arranged in the hydraulic rack cylinder 1, pistons 3 are respectively installed at two ends of the rack 2 through bolts, rotating teeth 4 are installed on one side in the hydraulic rack cylinder 1 through bearings, and the rack 2 is meshed with the rotating teeth 4.
In this embodiment, as shown in fig. 1, the pistons 3 at the two ends of the rack 2 can be pushed by pushing hydraulic pressure at the two ends of the hydraulic rack cylinder 1, so that the rotary teeth 4 can rotate.
Wherein, both ends are equipped with the buffer board 6 that corresponds with piston 3 respectively in the hydraulic rack jar 1, 6 one sides of buffer board are equipped with spring 5, 5 both ends of spring weld respectively with buffer board 6 and hydraulic rack jar 1 and establish the connection.
In this embodiment, as shown in fig. 1, the piston 3 moving inside the hydraulic rack cylinder 1 can be effectively buffered by the arrangement of the buffer plate 6 and the spring 5.
Wherein, the first oil liquid pipe 8 and the second oil liquid pipe 12 are respectively provided with a throttle valve 15 through flanges.
In this embodiment, as shown in fig. 1, a throttle valve 15 helps a person to adjust the hydraulic flow rates of the first and second fluid pipes 8 and 12.
It should be noted that, the present invention is a positive pressure control circulation system, when working, a person adjusts the hydraulic flow rate at the two ends of the hydraulic rack cylinder 1 through the hydraulic ports formed at the top and the bottom of the two ends of the hydraulic rack cylinder 1, and when using, the person assembles the first oil liquid pipe 8 and the second oil liquid pipe 12 to the first hydraulic port 7 and the second hydraulic port 11 respectively, and connects the first oil liquid pipe 8 and the second oil liquid pipe 12 with the hydraulic pump through the first three-way valve 9 and the second three-way valve 14 respectively, so as to circulate the hydraulic pressure inside the hydraulic rack cylinder 1, and the person adjusts the hydraulic flow rate at the top and the bottom of the hydraulic port at the two ends of the hydraulic rack cylinder 1 through the throttle valve 15 respectively, and the person can reduce or close one of the first hydraulic port 7 and the second hydraulic port 11 through the throttle valve 15, so as to reduce the flow rate of the hydraulic fluid inside the hydraulic rack cylinder 1, thereby changing the rotational speed of the operation of the hydraulic rack cylinder 1; through the arrangement of the buffer plate 6 and the spring 5, the piston 3 moving inside the hydraulic rack cylinder 1 can be effectively buffered, so that the problem of scratch and abrasion of the piston 3 on the hydraulic rack cylinder 1 is solved.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a malleation control circulation system, includes hydraulic pressure rack cylinder (1), first hydraulic pressure mouth (7), second hydraulic pressure mouth (11), first oil liquid pipe (8), second oil liquid pipe (12) and piston (3), its characterized in that, first hydraulic pressure mouth (7) and second hydraulic pressure mouth (11) have been seted up respectively to the top and the bottom at hydraulic pressure rack cylinder (1) both ends, be connected with first oil liquid pipe (8) on first hydraulic pressure mouth (7) respectively, the tip of first oil liquid pipe (8) has first three-way valve (9) through flange connection, the tip of second oil liquid pipe (12) has second three-way valve (14) through flange connection, the play liquid end of first three-way valve (9) is connected with first connecting pipe (10), the play liquid end of second three-way valve (14) is connected with second connecting pipe (13).
2. The positive pressure control circulation system according to claim 1, wherein: be equipped with rack (2) in hydraulic rack cylinder (1), piston (3) are installed through the bolt respectively at rack (2) both ends, in hydraulic rack cylinder (1) one side install through the bearing and change tooth (4), rack (2) are connected with changeing tooth (4) meshing.
3. The positive pressure control circulation system according to claim 1, wherein: both ends are equipped with buffer board (6) that correspond with piston (3) respectively in hydraulic rack jar (1), buffer board (6) one side is equipped with spring (5), spring (5) both ends are welded respectively with buffer board (6) and hydraulic rack jar (1) and are established the connection.
4. The positive pressure control circulation system according to claim 1, wherein: the first oil liquid pipe (8) and the second oil liquid pipe (12) are respectively provided with a throttle valve (15) through flanges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120032757.4U CN215333718U (en) | 2021-01-07 | 2021-01-07 | Positive pressure control circulation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120032757.4U CN215333718U (en) | 2021-01-07 | 2021-01-07 | Positive pressure control circulation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215333718U true CN215333718U (en) | 2021-12-28 |
Family
ID=79571690
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120032757.4U Active CN215333718U (en) | 2021-01-07 | 2021-01-07 | Positive pressure control circulation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215333718U (en) |
-
2021
- 2021-01-07 CN CN202120032757.4U patent/CN215333718U/en active Active
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