CN104454735A - Three-position five-way air-operated reversing valve of air hoist - Google Patents
Three-position five-way air-operated reversing valve of air hoist Download PDFInfo
- Publication number
- CN104454735A CN104454735A CN201410736078.XA CN201410736078A CN104454735A CN 104454735 A CN104454735 A CN 104454735A CN 201410736078 A CN201410736078 A CN 201410736078A CN 104454735 A CN104454735 A CN 104454735A
- Authority
- CN
- China
- Prior art keywords
- air
- valve
- valve body
- spool
- inlet hole
- 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.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
- B66D1/28—Other constructional details
- B66D1/40—Control devices
- B66D1/42—Control devices non-automatic
- B66D1/44—Control devices non-automatic pneumatic of hydraulic
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention relates to a three-position five-way air-operated reversing valve of an air hoist. The main technical characteristic is that a forward air inlet and a backward air inlet are formed in a valve element in a valve body; a forward air outlet and a backward air outlet are respectively formed in positions, corresponding to the forward air inlet and the backward air inlet, of the valve element, in the valve body; a main air outlet is formed in the valve body between the forward air outlet and the backward air outlet; a left air inlet is formed in the valve body on one side of the forward air inlet; a right air inlet is formed in the valve body on one side of the backward air inlet; a brake reversing valve is mounted in the valve body; a left air cylinder and a right air cylinder corresponding to the valve element are coaxially and respectively mounted on the left and right sides of the valve body; the left air cylinder and the right air cylinder are in mirror symmetry. According to the reversing valve, the axial three-position control of the valve element is designed, forward rotation, backward rotation, valve element left position control, valve element right position control and air-out air ways are designed, and through the control of a pneumatic valve, so that the three-position accurate position control of the valve element is realized, and the accuracy control of the air hoist during lifting, declining and braking is realized.
Description
Technical field
The invention belongs to lifting field, relate to the control valve of air hoist, especially a kind of three-position five-way pneumatic selector valve of air hoist.
Background technique
Air hoist is the one of Hoisting Machinery, and Application comparison is extensive.Air hoist is the clockwise and anticlockwise being controlled motor by main valve and air operated reversing valve, thus realizes promoting and declining and even brake.The air operated reversing valve that current air hoist adopts, the gas flow rate flow of the rotating forward controlled and reversion is unreasonable, and can not link with brake formation one when forward and reverse, cause lifting, declining and brake can not be synchronous, control can not reach accurate, meticulous.
In addition, the control of most air operated reversing valve also adopts manually, have impact on the accuracy starting and control.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of air hoist three-position five-way pneumatic selector valve making lifting, decline and brake realize accurate linkage is provided, solves the electrodeless variable-speed problem of air hoist from principle.
The object of the invention is to take following technological scheme to realize:
A kind of three-position five-way pneumatic selector valve of air hoist, comprise valve body, spool, copper sheathing and suction tude, brake steam outlet pipe, in valve body, copper sheathing is installed, in this copper sheathing, coaxial sliding and running has spool, this spool is shaped with and rotates forward inlet hole, reversion inlet hole, to should the made rotating forward inlet hole of spool, reversion inlet hole position valve body on rotate forward respectively air outlet hole, reversion air outlet hole, rotate forward air outlet hole, reversion air outlet hole between valve body on be shaped with main air outlet hole; The valve body rotating forward inlet hole side is shaped with left inlet hole, the valve body of reversion inlet hole side is shaped with right inlet hole, in valve body, brake selector valve is also installed, in the valve body left and right sides, corresponding spool coaxially installs left cylinder and right cylinder respectively, left and right cylinder specular is arranged, and respectively by left cylinder cap, the sealing of right cylinder cap, be communicated with at body base the interface that spool is provided with an external air valve.
And, valve body is provided with horizontally-guided bar.
And, one end of described brake selector valve is provided with and the rotating forward suction port rotating forward air outlet hole and be communicated with, the other end of brake selector valve is provided with the reversion suction port be communicated with the air outlet hole that reverses, brake selector valve is communicated with brake steam outlet pipe, realize rotating forward by the left and right shutoff of ball in ball seat, reversion time releasing brake air feed.
And, left piston is coaxially installed with in described left cylinder, the front portion of this left piston is coaxially fixedly mounted with left push rod, and this left push rod promotes the left and right displacement of spool by the Horizontal displacement of left piston, the cylinder cap at the rear portion of left piston is coaxially installed with the interface of spring and external air valve;
Be coaxially installed with right piston in described right cylinder, the front portion of this right piston is coaxially fixedly mounted with right push rod, and this right push rod promotes the left and right displacement of spool by the Horizontal displacement of left piston, the cylinder cap at the rear portion of right piston is coaxially installed with the interface of spring and external air valve.
And described rotating forward inlet hole is 4-8 of radial equipartition, and the inlet hole that reverses is 2-4 of radial equipartition.
Advantage of the present invention and good effect are:
1, this reversing valve designs spool control of three in the axial direction, five gas circuits devising rotating forward, reversion, the control of spool right position simultaneously and give vent to anger, and by the control of pneumatic valve, not only realize the control of three exact positions of spool, namely achieve the accurate control that air hoist is hoisting, declines and braking.
2, this selector valve is controlled by the gas circuit of spool, can realize braking and the interlock rotated forward, reverse, and stepless change, drastically increases the level of control of air hoist.
3, this selector valve expands the number of channels of gas circuit at forward position, reversion gas circuit is few but more close with air outlet hole, improves the efficiency that gas circuit controls, makes the control more science of rotating forward and reversion, more accurate, the air hoist accurately controlled for a new generation provides guarantee.
Accompanying drawing explanation
Fig. 1 is form structure plan view of the present invention;
Fig. 2 is the right elevation (broken section) of Fig. 1;
Fig. 3 is that the A-A of Fig. 2 is to cross-sectional view.
Embodiment
Below in conjunction with accompanying drawing, embodiments of the invention are further described; The present embodiment is descriptive, is not determinate, can not limit protection scope of the present invention thus.
A kind of three-position five-way pneumatic selector valve of air hoist, comprise valve body 3, spool 23, copper sheathing 17 and suction tude 5, brake steam outlet pipe 4, in valve body, copper sheathing is installed, in this copper sheathing, coaxial sliding and running has spool, this spool is shaped with and rotates forward inlet hole 27, reversion inlet hole 22, to should the made rotating forward inlet hole of spool, reversion inlet hole position valve body on rotate forward respectively air outlet hole 28, reversion air outlet hole 24, rotate forward air outlet hole, reversion air outlet hole between valve body on be shaped with main air outlet hole 25; The valve body rotating forward inlet hole side is shaped with left inlet hole, the valve body of reversion inlet hole side is shaped with right inlet hole 18; In order to ensure the Horizontal displacement of spool, avoiding skew, valve body is provided with horizontally-guided bar 26; Brake selector valve 15 is also installed in valve body, one end of this brake selector valve is provided with and the rotating forward suction port 13 rotating forward air outlet hole and be communicated with, the other end of brake selector valve is provided with the reversion suction port 16 be communicated with the air outlet hole that reverses, brake selector valve is communicated with brake steam outlet pipe, realize rotating forward by the left and right shutoff of ball in ball seat 14, reversion time brake exhaust.In the valve body left and right sides, corresponding spool coaxially installs left cylinder 2 and right cylinder 6 respectively, and left and right cylinder specular is arranged, and seals respectively by left cylinder cap 1, right cylinder cap 7, is communicated with at body base the interface 9 that spool is provided with an external air valve.
Described rotating forward inlet hole is 4-8 of radial equipartition, and the inlet hole that reverses is 2-4 of radial equipartition.
Left piston 31 is coaxially installed with in described left cylinder, the front portion of this left piston is coaxially fixedly mounted with left push rod 30, this left push rod promotes the left and right displacement of spool by the Horizontal displacement of left piston, the cylinder cap at the rear portion of left piston is coaxially installed with the interface 10 of spring 12 and external air valve.
Right piston 20 is coaxially installed with in described right cylinder, the front portion of this right piston is coaxially fixedly mounted with right push rod 21, this right push rod promotes the left and right displacement of spool by the Horizontal displacement of left piston, the cylinder cap at the rear portion of right piston is coaxially installed with the interface 8 of spring 19 and external air valve.
Working principle of the present invention is:
During rotating forward, the gas of external air valve enters through left cylinder and promotes the displacement to the right of left push rod, the rotating forward inlet hole making spool made is thus communicated with rotating forward air outlet hole gradually, realize the stepless speed regulation rotated forward, gas enters and rotates forward air outlet hole and the rotating forward driving air hoist through rotating forward pipeline, because the rotating forward inlet hole arranged is multiple, the efficiency of rotating forward can be improved; Meanwhile, rotate forward air outlet hole and be also communicated with rotating forward brake steam outlet pipe simultaneously, realize rotating forward and the control of braking.
During reversion, the gas of external air valve enters through right cylinder and promotes right push rod to left dislocation, the reversion inlet hole making spool made is thus communicated with reversion air outlet hole gradually, realize the stepless speed regulation of reversion, gas enters reversion air outlet hole and drives the reversion of air hoist through reversion pipeline, reversion air outlet hole is also communicated with reverse brake steam outlet pipe simultaneously, realizes the control of reversion and brake.
Claims (5)
1. the three-position five-way pneumatic selector valve of an air hoist, it is characterized in that: comprise valve body, spool, copper sheathing and suction tude, brake steam outlet pipe, in valve body, copper sheathing is installed, in this copper sheathing, coaxial sliding and running has spool, this spool is shaped with and rotates forward inlet hole, reversion inlet hole, to should the made rotating forward inlet hole of spool, reversion inlet hole position valve body on rotate forward respectively air outlet hole, reversion air outlet hole, rotate forward air outlet hole, reversion air outlet hole between valve body on be shaped with main air outlet hole; The valve body rotating forward inlet hole side is shaped with left inlet hole, the valve body of reversion inlet hole side is shaped with right inlet hole, in valve body, brake selector valve is also installed, in the valve body left and right sides, corresponding spool coaxially installs left cylinder and right cylinder respectively, left and right cylinder specular is arranged, and respectively by left cylinder cap, the sealing of right cylinder cap, be communicated with at body base the interface that spool is provided with an external air valve.
2. the three-position five-way pneumatic selector valve of air hoist according to claim 1, is characterized in that: on valve body, be provided with horizontally-guided bar.
3. the three-position five-way pneumatic selector valve of air hoist according to claim 1, it is characterized in that: one end of described brake selector valve is provided with and the rotating forward suction port rotating forward air outlet hole and be communicated with, the other end of brake selector valve is provided with the reversion suction port be communicated with the air outlet hole that reverses, brake selector valve is communicated with brake steam outlet pipe, realize rotating forward by the left and right shutoff of ball in ball seat, reversion time releasing brake air feed.
4. the three-position five-way pneumatic selector valve of air hoist according to claim 1, it is characterized in that: in described left cylinder, be coaxially installed with left piston, the front portion of this left piston is coaxially fixedly mounted with left push rod, this left push rod promotes the left and right displacement of spool by the Horizontal displacement of left piston, the cylinder cap at the rear portion of left piston is coaxially installed with the interface of spring and external air valve;
Be coaxially installed with right piston in described right cylinder, the front portion of this right piston is coaxially fixedly mounted with right push rod, and this right push rod promotes the left and right displacement of spool by the Horizontal displacement of left piston, the cylinder cap at the rear portion of right piston is coaxially installed with the interface of spring and external air valve.
5. the three-position five-way pneumatic selector valve of air hoist according to claim 1, is characterized in that: described rotating forward inlet hole is 4-8 of radial equipartition, and the inlet hole that reverses is 2-4 of radial equipartition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410736078.XA CN104454735B (en) | 2014-12-05 | 2014-12-05 | A kind of three-position five-way pneumatic reversal valve of air hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410736078.XA CN104454735B (en) | 2014-12-05 | 2014-12-05 | A kind of three-position five-way pneumatic reversal valve of air hoist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104454735A true CN104454735A (en) | 2015-03-25 |
| CN104454735B CN104454735B (en) | 2016-06-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410736078.XA Expired - Fee Related CN104454735B (en) | 2014-12-05 | 2014-12-05 | A kind of three-position five-way pneumatic reversal valve of air hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104454735B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106564823A (en) * | 2015-10-10 | 2017-04-19 | 常州市博金机械制造有限公司 | Pneumatic hoist |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2445585A (en) * | 1946-02-15 | 1948-07-20 | Keller Tool Co | Pneumatic hoist and reversing valve mechanism therefor |
| EP0092279A2 (en) * | 1982-04-20 | 1983-10-26 | Jacobus Hendrikus Van Leusden | Pneumatically controlled air motor, for example, for hoisting implement |
| EP0786583A2 (en) * | 1996-01-23 | 1997-07-30 | Ingersoll-Rand Company | Rotary valve and directional valve combination |
| CN201908882U (en) * | 2010-05-06 | 2011-07-27 | 杨铭 | Pinion-and-rack type three-position four-way hydraulic rotary valve |
| CN202449778U (en) * | 2012-01-04 | 2012-09-26 | 江苏新象股份有限公司 | Novel remote control device for pneumatic hoist |
| CN104370213A (en) * | 2014-10-24 | 2015-02-25 | 山东鑫鹏宇矿业装备有限公司 | Pneumatic monorail crane |
| CN204300001U (en) * | 2014-12-05 | 2015-04-29 | 天津市瑞芬机电技术开发有限公司 | A kind of three-position five-way pneumatic change-over valve of air hoist |
-
2014
- 2014-12-05 CN CN201410736078.XA patent/CN104454735B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2445585A (en) * | 1946-02-15 | 1948-07-20 | Keller Tool Co | Pneumatic hoist and reversing valve mechanism therefor |
| EP0092279A2 (en) * | 1982-04-20 | 1983-10-26 | Jacobus Hendrikus Van Leusden | Pneumatically controlled air motor, for example, for hoisting implement |
| EP0786583A2 (en) * | 1996-01-23 | 1997-07-30 | Ingersoll-Rand Company | Rotary valve and directional valve combination |
| CN201908882U (en) * | 2010-05-06 | 2011-07-27 | 杨铭 | Pinion-and-rack type three-position four-way hydraulic rotary valve |
| CN202449778U (en) * | 2012-01-04 | 2012-09-26 | 江苏新象股份有限公司 | Novel remote control device for pneumatic hoist |
| CN104370213A (en) * | 2014-10-24 | 2015-02-25 | 山东鑫鹏宇矿业装备有限公司 | Pneumatic monorail crane |
| CN204300001U (en) * | 2014-12-05 | 2015-04-29 | 天津市瑞芬机电技术开发有限公司 | A kind of three-position five-way pneumatic change-over valve of air hoist |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106564823A (en) * | 2015-10-10 | 2017-04-19 | 常州市博金机械制造有限公司 | Pneumatic hoist |
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| Publication number | Publication date |
|---|---|
| CN104454735B (en) | 2016-06-29 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160629 Termination date: 20191205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |