CN202062697U - Prefill valve mounting structure for large-tonnage oil cylinder - Google Patents
Prefill valve mounting structure for large-tonnage oil cylinder Download PDFInfo
- Publication number
- CN202062697U CN202062697U CN2011201301883U CN201120130188U CN202062697U CN 202062697 U CN202062697 U CN 202062697U CN 2011201301883 U CN2011201301883 U CN 2011201301883U CN 201120130188 U CN201120130188 U CN 201120130188U CN 202062697 U CN202062697 U CN 202062697U
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- CN
- China
- Prior art keywords
- oil cylinder
- prefill
- mounting structure
- tonnage
- prefill valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a hydraulic press, in particular to a prefill valve mounting structure for a large-tonnage oil cylinder, which belongs to the technical field of machining. According to the mounting structure, two or a plurality of prefill valves are mounted on the large-tonnage oil cylinder, and the switches of the prefill valves are controlled by the same oil circuit control, so that the requirements for oil prefilling and drainage when the large-tonnage oil cylinder is running at a high speed are met; moreover, the equivalent drift diameter of a single prefill valve is not too large, so the running is highly reliable, the motion is rapid, the switching time is short and the hydraulic impact is small.
Description
Technical field
The utility model relates to a kind of hydraulic press, is specifically related to a kind of mounting structure of large-tonnage oil cylinder prefill valve, belongs to the Machining Technology field.
Background technology
Its master cylinder prefill valve on the large-tonnage hydraulic press at present, adopt the single prefill valve mounting means of single cylinder mostly, if it is fast to large-tonnage oil cylinder hydraulic press speed, the turnover oil flow of its prefill valve will be very big, and the structural design of prefill valve can be very big, and is very poor to the reliability that makes prefill valve, impact during its switch also can be very big, process equipment is fragile, and maintain and replace is very difficult, has strengthened the workpiece processing cost.
Summary of the invention
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art part, a kind of mounting structure of large-tonnage oil cylinder prefill valve is provided, this mounting structure is that two or more prefill valves are installed on the cylinder body of large-tonnage oil cylinder, control the prefill valve switch with same control oil circuit, the up and down topping up and the discharge opeing requirement of cylinder body annular seal space during rapid movement of the plunger that satisfies the large-tonnage oil cylinder, and because the equivalent latus rectum of single prefill valve is not too big, therefore, its operational reliability height, be swift in motion, switch time is few, and hydraulic shock is little.
The utility model is realized with following technical scheme: a kind of mounting structure of large-tonnage oil cylinder prefill valve, this structure includes upper beam, be fixed with master cylinder on the upper beam, it is characterized in that: be equipped with several prefill valves on the described master cylinder, the topping up case is fixed on the oil cylinder end face by screw, nut.
Be equipped with two or more prefill valves on the described master cylinder, described master cylinder and upper beam are connected with a plurality of prefill valves, and shared same control oil circuit.
The utility model has the advantages that: this mounting structure is simple, connection and reasonable arrangement, two or more prefill valves are installed on the large-tonnage oil cylinder, are controlled the prefill valve switch, topping up and discharge opeing requirement when satisfying the large-tonnage oil cylinder and moving fast with same control oil circuit, and because the equivalent latus rectum of single prefill valve is not too big, therefore, its operational reliability height is swift in motion, switch time is few, and hydraulic shock is little.
Description of drawings
Below in conjunction with drawings and the specific embodiments the utility model is described in further detail:
Fig. 1 is the utility model structural representation:
Fig. 2 is the vertical view of Fig. 1:
Shown in the figure: 1, topping up case, 2, prefill valve, 3, master cylinder, 4, put the beams in place.
The specific embodiment
As shown in the figure: a kind of mounting structure of large-tonnage oil cylinder prefill valve, this structure include puts the beams in place 4, is fixed with master cylinder 3 on the upper beam, is equipped with several prefill valves 2 on the described oil cylinder, and topping up case 1 is fixed on the oil cylinder end face by screw, nut.
Be equipped with two or more prefill valves 2 on the described oil cylinder, described master cylinder cylinder 3 is connected with a plurality of prefill valves 2 with upper beam 4, and shared same control oil circuit.
Claims (2)
1. the mounting structure of a large-tonnage oil cylinder prefill valve, this structure includes upper beam (4), be fixed with master cylinder (3) on the upper beam, it is characterized in that: be equipped with several prefill valves (2) on the described oil cylinder, topping up case (1) is fixed on the oil cylinder end face by screw, nut.
2. the mounting structure of a kind of large-tonnage oil cylinder prefill valve according to claim 1, it is characterized in that: be equipped with two or more prefill valves (2) on the described master cylinder, described master cylinder (3) is connected with a plurality of prefill valves (2) with put the beams in place (4), and shared same control oil circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201301883U CN202062697U (en) | 2011-04-22 | 2011-04-22 | Prefill valve mounting structure for large-tonnage oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201301883U CN202062697U (en) | 2011-04-22 | 2011-04-22 | Prefill valve mounting structure for large-tonnage oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202062697U true CN202062697U (en) | 2011-12-07 |
Family
ID=45056574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201301883U Expired - Fee Related CN202062697U (en) | 2011-04-22 | 2011-04-22 | Prefill valve mounting structure for large-tonnage oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202062697U (en) |
-
2011
- 2011-04-22 CN CN2011201301883U patent/CN202062697U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20120422 |