CN202719197U - Switch valve of tower crane jacking system - Google Patents
Switch valve of tower crane jacking system Download PDFInfo
- Publication number
- CN202719197U CN202719197U CN 201220250132 CN201220250132U CN202719197U CN 202719197 U CN202719197 U CN 202719197U CN 201220250132 CN201220250132 CN 201220250132 CN 201220250132 U CN201220250132 U CN 201220250132U CN 202719197 U CN202719197 U CN 202719197U
- Authority
- CN
- China
- Prior art keywords
- valve
- valve rod
- valve body
- handle
- tower crane
- 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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- Mechanically-Actuated Valves (AREA)
Abstract
The utility model discloses a switch valve of a tower crane jacking system. The switch valve comprises a reset spring, a valve body, a valve rod, a fixing base and a handle, wherein the valve rod is positioned in a central through hole of the valve body; the front end of the valve rod is positioned through the reset spring; the fixing base is sleeved on the tail end of the valve rod and is fixedly arranged on the valve body; the handle is moveably connected to the fixing base; the tail end of the handle and the valve rod are connected through a pin shaft; and a clearance between the valve rod and the valve body is 0 to 0.005mm. The clearance between the valve rod and the valve body of the switch valve of the tower crane jacking system is adjusted to be 0 to 0.005mm, the bearing pressure is high and is between 35 to 45MPA, the sealing property is better, and the working efficiency is improved.
Description
Technical field
The utility model relates to a kind of selector valve, specifically a kind of tower machine jack-up system selector valve.
Background technique
Tower machine jack-up system is by pumping plant, hydraulic jack, the system that high-pressure rubber pipe and specific hydraulic fluid form, it can jacking go up the above part of rotating tower machine pivoting support with descending, and can make it rest on any position, so that the mounting or dismounting of tower-body standard section, it has compact structure, and efficient is high, easy maintenance, the advantage such as safe and reliable can be used for various ton Mi Taji jackings.Common change valve and valve lever clearance are larger, be generally about 0.02mm, and poor sealing, the pressure that bears is little, and scope is between 30MPA-31.5MPA.
Summary of the invention
For the problem that above-mentioned prior art exists, the utility model provides a kind of tower machine jack-up system selector valve, and the gap between valve rod and the valve body reduces, better tightness, and the pressure that bears is larger.
To achieve these goals, the technical solution adopted in the utility model is: a kind of tower machine jack-up system selector valve, comprise Returnning spring, valve body, valve rod, fixed base and handle, valve rod is positioned at the valve body central through bore, and the valve rod front end is located by Returnning spring, and terminal cover has fixed base, fixed base is fixed on valve body, handle is movably connected on the fixed base, and handle end is connected by bearing pin with valve rod, and the gap of described valve rod and valve body is 0mm-0.005mm.
The gap of the utility model tower machine jack-up system selector valve valve rod and valve body is adjusted into 0mm-0.005mm, and the pressure that bears is large, and scope is between 35MPA-45MPA, and better tightness has improved working efficiency.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, Returnning spring, 2, valve body, 3, valve rod, 4, fixed base, 5, handle.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model tower machine jack-up system selector valve, comprise Returnning spring 1, valve body 2, valve rod 3, fixed base 4 and handle 5, valve rod 3 is positioned at valve body 2 central through bores, and valve rod 3 front ends are by Returnning spring 1 location, terminal cover has fixed base 4, fixed base 4 is fixed on valve body 2, and handle 5 is movably connected on the fixed base 4, and handle 5 is terminal to be connected by bearing pin with valve rod 3, it is characterized in that, described valve rod 3 is 0mm-0.005mm with the gap of valve body 2.
During work, come the push-and-pull valve rod to realize the road of changing of hydraulic oil by handle 5, the gap of the utility model tower machine jack-up system selector valve valve rod and valve body is adjusted into 0mm-0.005mm, better tightness, and the pressure that bears is larger.Pressure till now between the improved 35MPA-45MPA, has improved working efficiency by common 31.5MPA.
Claims (1)
1. tower machine jack-up system selector valve, comprise Returnning spring (1), valve body (2), valve rod (3), fixed base (4) and handle (5), valve rod (3) is positioned at valve body (2) central through bore, valve rod (3) front end is by Returnning spring (1) location, terminal cover has fixed base (4), fixed base (4) is fixed on valve body (2), handle (5) is movably connected on the fixed base (4), handle (5) is terminal to be connected by bearing pin with valve rod (3), it is characterized in that, described valve rod (3) is 0mm-0.005mm with the gap of valve body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220250132 CN202719197U (en) | 2012-05-30 | 2012-05-30 | Switch valve of tower crane jacking system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220250132 CN202719197U (en) | 2012-05-30 | 2012-05-30 | Switch valve of tower crane jacking system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202719197U true CN202719197U (en) | 2013-02-06 |
Family
ID=47621021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220250132 Expired - Fee Related CN202719197U (en) | 2012-05-30 | 2012-05-30 | Switch valve of tower crane jacking system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202719197U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105189A (en) * | 2017-11-09 | 2018-06-01 | 武汉船用机械有限责任公司 | A kind of proportional direction valve |
-
2012
- 2012-05-30 CN CN 201220250132 patent/CN202719197U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108105189A (en) * | 2017-11-09 | 2018-06-01 | 武汉船用机械有限责任公司 | A kind of proportional direction valve |
| CN108105189B (en) * | 2017-11-09 | 2020-04-14 | 武汉船用机械有限责任公司 | Proportional direction valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Xuzhou Tian Long pivoting support Co., Ltd Assignor: Xuzhou Tianlong Hydraulic Machinery Co.,Ltd. Contract record no.: 2013320000143 Denomination of utility model: Switch valve of tower crane jacking system Granted publication date: 20130206 License type: Exclusive License Record date: 20130319 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130206 Termination date: 20140530 |