CN108679263A - Reversal valve and chain tightener - Google Patents
Reversal valve and chain tightener Download PDFInfo
- Publication number
- CN108679263A CN108679263A CN201810584084.6A CN201810584084A CN108679263A CN 108679263 A CN108679263 A CN 108679263A CN 201810584084 A CN201810584084 A CN 201810584084A CN 108679263 A CN108679263 A CN 108679263A
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- China
- Prior art keywords
- blow vent
- spool
- valve body
- venthole
- groove
- 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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- 238000007789 sealing Methods 0.000 claims description 18
- 230000008878 coupling Effects 0.000 claims description 3
- 238000010168 coupling process Methods 0.000 claims description 3
- 238000005859 coupling reaction Methods 0.000 claims description 3
- 238000009423 ventilation Methods 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 21
- 238000000354 decomposition reaction Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005191 phase separation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/072—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members
- F16K11/076—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with pivoted closure members with sealing faces shaped as surfaces of solids of revolution
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- 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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Sliding Valves (AREA)
- Multiple-Way Valves (AREA)
Abstract
The invention discloses a kind of reversal valve and chain tightener, wherein reversal valve includes：Valve body, the blow vent for having connection inside and outside on valve body, blow vent include the first blow vent, the second blow vent, third blow vent and the 4th blow vent；Spool is assemblied in valve body, the first venthole and the second venthole for having connection inside and outside on the barrel of spool, and the first groove and the second groove are provided in the outside wall surface of spool, also has air inlet on spool；Changement, changement is for driving spool relative to valve body；When wherein spool is relative to valve body to first position, the first venthole is opposite with the first blow vent, and the second groove is connected to third blow vent and the 4th blow vent；When spool is relative to valve body to the second position, the second venthole is opposite with third blow vent, and the first groove is connected to the first blow vent and the second blow vent.The present invention can simplify air motor switch operation.
Description
Technical field
The present invention relates to tightening equipment technical field, more particularly to a kind of reversal valve and chain tightener.
Background technology
The present invention belongs to the relevant technologies related to the present invention for the description of background technology, be only used for explanation and just
In the invention content for understanding the present invention, it should not be construed as applicant and be specifically identified to or estimate applicant being considered of the invention for the first time
The prior art for the applying date filed an application.
Chain tightener is used for multiple industries, such as the drag conveyor mating for coalcutter.Underground coal mine scraper plate conveys
The chain connected between each scraper plate in machine, scraper chain overrelaxation can cause chain to be blocked in derailleur, scraper chain caused to be jumped
Chain such as falls chain, slides down at the accidents.And chain can be tightened to degree appropriate by chain tightener.
Manual actuation or motor driving etc. can be used in chain tightener.Motor-driven chain tightener is chiefly used in large scale equipment.
Since chain tightener carries out loosening, tighten operation, its driving mechanism is driven to need positive and negative operating.When being driven using motor at
This is higher.Air motor uses compressed air-driven, small, at low cost.But it when air motor will convert outbound course, needs
It is exchanged into outlet, operation is inconvenient.
Invention content
In view of this, a kind of reversal valve of offer of the embodiment of the present invention and chain tightener, main purpose are simplified air motors
Switch operation.
In order to achieve the above objectives, present invention generally provides following technical solutions：
In a first aspect, an embodiment of the present invention provides a kind of reversal valves, including：
Valve body, the blow vent for having connection inside and outside on the valve body, the blow vent include the first blow vent, the second ventilation
Mouth, third blow vent and the 4th blow vent；
Spool is assemblied in the valve body, the first venthole and second for having connection inside and outside on the barrel of the spool
Venthole is provided with the first groove and the second groove in the outside wall surface of the spool, also has air inlet on the spool；
Changement, the changement is for driving the spool relative to the valve body；Wherein
When the spool is relative to the valve body to first position, first venthole and first blow vent
Relatively, second groove is connected to the third blow vent and the 4th blow vent；
When the spool is relative to the valve body to the second position, second venthole and the third blow vent
Relatively, first groove is connected to first blow vent and the second blow vent.
As the preferred of above-described embodiment, at least described spool has the first groove and the second groove and the first outlet
The outside wall surface of hole and the second venthole and the internal face sealing with blow vent of the valve body coordinate.
As the preferred of above-described embodiment, location structure is equipped between the spool and the valve body.
As the preferred of above-described embodiment, the spool by being relatively rotated positioned at the first position with the valve body or
The second position；Or the spool is slidably disposed in the first position or the second by opposite with the valve body
It sets.
As the preferred of above-described embodiment, the valve body is cylindrical shape, and the spool is cylindrical shape.
As the preferred of above-described embodiment, first blow vent, the second blow vent, third blow vent and the 4th blow vent
On the periphery of the valve body, first venthole, the second venthole, the first groove and the second groove are set to the valve
On the periphery of core, the air inlet is set on the end face of the spool.
As the preferred of above-described embodiment, first blow vent and the second blow vent are located at the same circumference of the valve body
On, the third blow vent and the 4th blow vent are located on the same circumference of the valve body；First venthole and first recessed
Slot is located on the same circumference of the spool, and second venthole and the second groove are located on the same circumference of the spool.
As the preferred of above-described embodiment, the changement is handle, and the handle is detachably connected with the spool.
As the preferred of above-described embodiment, the valve body includes cylinder and end cap, has mounting flange on the cylinder,
The end cap is bolted with the ring flange.
Second aspect, an embodiment of the present invention provides a kind of chain tighteners comprising driving mechanism, rack tube, rack and
First coupler body, the rack tube are fixedly connected with the driving mechanism, and the rack is assemblied in rack tube, the rack and institute
Driving mechanism drive connection is stated, the driving mechanism drives the rack slide along the rack tube, the rack and described the
One coupler body connects, and is connected with fixing piece on the rack tube, and the driving mechanism includes retarder and air motor, described pneumatic
Motor is sequentially connected with the retarder, and the retarder is connect with the rack drives, the first air holes of the air motor
Reversal valve is connected by the first air hose, the second air holes of the air motor connects reversal valve, the commutation by the second air hose
Valve connects compressed air source.
As the preferred of above-described embodiment, the reversal valve be any of the above-described embodiment described in reversal valve, described first
Blow vent is connect by the first air hose with first air holes, and the third blow vent passes through the second air hose and second air holes
Connection.
As the preferred of above-described embodiment, first coupler body is rotatably connected by connecting mechanism for rotating and the rack
It connects.
As the preferred of above-described embodiment, rotary shaft and the rack of first coupler body relative to the racks turn
It is parallel.
As the preferred of above-described embodiment, the connecting mechanism for rotating is joint coupling.
Compared with prior art, the advantageous effect of the embodiment of the present invention is：
Reversal valve provided in an embodiment of the present invention can easily realize the output commutation of air motor, simplify operation.This
The first blow vent and third blow vent of the reversal valve of inventive embodiments are connect with two air holes of air motor respectively, by changing
Air motor is delivered to by the first blow vent to valve control compressed air, then by third blow vent return reversal valve and by the 4th
Blow vent is discharged；Or compressed air is delivered to air motor by third blow vent, then returns to reversal valve by the first blow vent
And it is discharged by the second blow vent.The output that air motor can be realized in air hose need not be plugged between two air holes of air motor
Commutation.
Description of the drawings
Fig. 1 shows the structural decomposition diagram of the first embodiment of reversal valve of the present invention；
Schematic diagram after being assembled Fig. 2 shows the main body of the first embodiment of reversal valve of the present invention；
Fig. 3 a show showing when spool is located at first position relative to valve body in the second embodiment of reversal valve of the present invention
It is intended to；
Fig. 3 b show showing when spool is located at the second position relative to valve body in the second embodiment of reversal valve of the present invention
It is intended to；
Fig. 4 a show the schematic diagram of the circumferential surface expansion of valve body in the 3rd embodiment of reversal valve of the present invention；
Fig. 4 b show the schematic diagram of the circumferential surface expansion of spool in the 3rd embodiment of reversal valve of the present invention；
Fig. 5 shows the structural decomposition diagram of the fourth embodiment of reversal valve of the present invention；
Fig. 6 shows the structural decomposition diagram of the 5th embodiment of reversal valve of the present invention；
Fig. 7 shows the one of the chain tightener of the present invention structural schematic diagram for applying example；
Fig. 8 shows the connection diagram of the first coupler body and one embodiment of connecting mechanism for rotating in the embodiment of the present invention.
Description of symbols in figure：Valve body 1；First blow vent 11；Second blow vent 12；Third blow vent 13；4th blow vent
14；Ring flange 15；End cap 16；Spool 2；First venthole 21；Second venthole 22；First groove 23；Second groove 24；Into
Gas port 25；Changement 3；Sealing ring 4；First limiting plate 7；Second limiting plate 8；Locating slot 51；Positioning pin 52；Fixing piece 400；
Driving mechanism 600；Rack tube 700；Rack 800；First coupler body 900；Retarder 610；Air motor 620；First air holes 621；
Second air holes 622；First air hose 5；Second air hose 6.
Specific implementation mode
With reference to specific embodiment, present invention is further described in detail, but not as a limitation of the invention.
In following the description, what different " embodiment " or " embodiment " referred to is not necessarily the same embodiment.In addition, one or more are implemented
Special characteristic, structure or feature in example can be combined by any suitable form.
An embodiment of the present invention provides a kind of reversal valve, Fig. 1 shows the structure of the first embodiment of reversal valve of the present invention
Decomposition diagram；Schematic diagram after being assembled Fig. 2 shows the main body of the first embodiment of reversal valve of the present invention；Fig. 3 a show this
Schematic diagram when spool is located at first position relative to valve body in the second embodiment of invention reversal valve；Fig. 3 b show the present invention
Schematic diagram when spool is located at the second position relative to valve body in the second embodiment of reversal valve；Fig. 4 a show commutation of the present invention
The schematic diagram of the circumferential surface expansion of valve body in the 3rd embodiment of valve；Fig. 4 b show valve in the 3rd embodiment of reversal valve of the present invention
The schematic diagram of the circumferential surface expansion of core；Fig. 5 shows the structural decomposition diagram of the fourth embodiment of reversal valve of the present invention；Fig. 6 shows
The structural decomposition diagram of the 5th embodiment of reversal valve of the present invention is gone out.Referring to Fig. 1 to Fig. 6, the commutation of the embodiment of the present invention
Valve includes：
Valve body 1, the blow vent for having connection inside and outside on valve body 1, blow vent include the first blow vent 11, the second blow vent
12, third blow vent 13 and the 4th blow vent 14；
Spool 2 is assemblied in valve body 1, the first venthole 21 and the second outlet for having connection inside and outside on the barrel of spool 2
Hole 22 is provided with the first groove 23 and the second groove 24 in the outside wall surface of spool 2, also has air inlet 25 on spool 2；
Changement 3, changement 3 is for driving spool 2 to be moved relative to valve body 1；Wherein
When spool 2 moves to first position relative to valve body 1, the first venthole 21 and the first blow vent 11 are opposite, and second
Groove 24 is connected to third blow vent 13 and the 4th blow vent 14；
When spool 2 moves to the second position relative to valve body 1, the second venthole 22 is opposite with third blow vent 13, and first
Groove 23 is connected to the first blow vent 11 and the second blow vent 12.
Reversal valve provided in an embodiment of the present invention can easily realize the output commutation of air motor 620, simplify operation.
The first blow vent 11 and third blow vent 13 of the reversal valve of the embodiment of the present invention connect with two air holes of air motor 620 respectively
It connects, control compressed air by reversal valve is delivered to air motor 620 by the first blow vent 11, is then returned by third blow vent 13
It returns reversal valve and is discharged by the 4th blow vent 14；Or compressed air is delivered to air motor 620 by third blow vent 13, then
Reversal valve is returned by the first blow vent 11 and is discharged by the second blow vent 12.Using the reversal valve of the embodiment of the present invention, it is not necessary to
The output commutation that air motor 620 can be realized in air hose is plugged between two air holes of air motor 620.
As the preferred of above-described embodiment, at least spool 2 has the first groove 23 and the second groove 24 and first goes out
The outside wall surface of stomata 21 and the second venthole 22 and the internal face sealing with blow vent of valve body 1 coordinate.The present embodiment passes through
Between 1 corresponding wall surface of spool 2 and valve body sealing cooperation can to avoid reversal valve to 620 conveying high-pressure air of air motor when leak
Gas, guarantee have enough pressure that air motor 620 is driven to work.Certainly, spool 2 and the wall surface of the sealing cooperation of valve body 1 are not limited to
State the wall surface of preferred embodiment restriction.Can also be all wall surfaces of spool 2 and 1 joint of valve body.Such as spool 2 and valve body 1
For cylindrical shape when, if the first groove 23 and the second groove 24 and the first venthole 21 and the second venthole 22 are set to spool 2
On periphery, blow vent is set on the periphery of valve body 1, then can the only outer circumference surface of spool 2 and valve body 1 inner peripheral surface
Sealing cooperation.
Certainly, other modes can also be used to avoid reversal valve from leaking out.For example, the outside wall surface and/or valve body 1 of spool 2
Internal face is equipped with sealing ring 4.Gas leakage can also be avoided the problem that by the way that sealing ring 4 is arranged.The number of sealing ring 4 and the tool of setting
Body position is not especially limited, as long as gas leakage in the reversal valve course of work can be reduced.Such as it can be if figure is the of spool 2
Sealing ring is respectively set around one groove 23, around the second groove 24, around the first venthole 21 and around the second venthole 22
4.It can ensure in this way, when spool 2 moves to first position relative to valve body 1, the first venthole 21 and the first blow vent 11 weeks
Sealing is enclosed, will not be revealed, the sealing ring 4 around the second groove 24 makes the gas returned by third blow vent 13 through the second groove
24 by the 4th blow vent 14 when being discharged, and will not be revealed；When spool 2 moves to the second position relative to valve body 1, the second venthole 22
It seals, will not reveal with 13 surrounding of third blow vent, what the sealing ring 4 around the first groove 23 made to be returned by the first blow vent 11
When gas is discharged through the first groove 23 by the second blow vent 12, it will not reveal.
In addition, also lubricating grease can be applied on 1 corresponding face of spool 2 and valve body.The sealing between two faces can be realized,
Frictional resistance can be reduced again, utilize handover operation.Certainly, the face sealing in above-described embodiment, the sealing of sealing ring 4 and painting profit
Consistent lubricant etc., which can be used alone, any can also be used in combination.
For the ease of the handover operation of reversal valve, make spool 2 relative to 1 accurate motion of valve body to first position or second
It sets.In a preferred embodiment of the present invention, location structure is equipped between spool 2 and valve body 1.The location structure is used for valve
Core 2 is positioned at first position or the second position relative to valve body 1.The concrete form of location structure is unlimited, as long as can be in spool 2
When moving to first position relative to valve body 1, spool 2 is prevented to continue to move relative to valve body 1, or in spool 2 relative to valve
When body 1 moves to the second position, spool 2 is prevented to continue to move relative to valve body 1.
For example, location structure can be with mutually matched block between spool 2 and valve body 1, specifically, can be on valve body 1
With and corresponding first block in first position and the second block corresponding with the second position, when spool 2 is moved relative to valve body 1
When to first position, some position (including the component being connect with spool 2) and the first block of spool 2 act on, and prevent spool 2
Continue to move；When spool 2 moves to the second position relative to valve body 1, some position of spool 2 (includes being connect with spool 2
Component) it is acted on the second block, prevent spool 2 from continuing to move.
For another example location structure can be specific as follows：On the outer wall of spool 2 have locating slot 51, and on valve body 1 have with
The positioning pin 52 that locating slot 51 coordinates.When spool 2 is located at first position relative to valve body 1, positioning pin 52 is located at locating slot 51
One end, when spool 2 is located at the second position relative to valve body 1, positioning pin 52 is located at the other end of locating slot 51.Positioning pin
52 can be specifically bolt, be screwed in valve body 1 by screw hole one end on valve body 1, coordinate with locating slot 51.
In the embodiment of the present invention, spool 2 is unlimited relative to the mode that valve body 1 moves, such as can be rotation, can also be
Sliding.Spool 2 is located at first position or the second position by being relatively rotated with valve body 1, which is easily achieved, as long as valve body
1 can be achieved rotation for axisymmetric shapes such as cylindrical shape, truncated cone-shapeds.Or spool 2 is slidably disposed in first by opposite with valve body 1
Position or the second position.The embodiment is relatively low to the shape need of valve body 1 and spool 2, is not limited to cylindrical shape, truncated cone-shaped, cydariform
Etc. axisymmetric shapes, as long as spool 2 can along a direction relative to valve body 1 slide.Such as 1 inner cavity of valve body is semicolumn
Shape, spool 2 are compatible semi-cylindrical therewith.
Described in embodiment as above, the reversal valve of the embodiment of the present invention is not especially limited the shape of valve body 1 and spool 2.
As one of preferred embodiment, valve body 1 is cylindrical shape, and spool 2 is cylindrical shape.It is opposite that spool 2 may be implemented in the embodiment
It is rotated in valve body 1, spool 2 can also be realized relative to the sliding of valve body 1 (such as in an axial direction).Specifically, valve body 1 can be one end
The cylinder of opening can also be the cylinder of both ends open, and spool 2 should be closed cylinder, have for inputting on spool 2
The air inlet 25 of compressed air and the first venthole 21 and the second venthole 22 for exporting compressed air.Compressed air by
After air inlet 25 is input in spool 2, exported by the first venthole 21 or the second venthole 22, and by valve body 1 with first
Venthole 21 or the corresponding blow vent of the second venthole 22 (such as first blow vent 11 opposite with the first venthole 21, with
The opposite third blow vent 13 of two ventholes 22) it is delivered to air motor 620.It is returned again by the compressed air of air motor 620
Reversal valve is returned, pneumatic horse (is delivered to by the first blow vent 11 by the discharge of the 4th blow vent 14 after being returned by third blow vent 13
When up to 620), or (be delivered to by third blow vent 13 pneumatic by the discharge of the second blow vent 12 after being returned by the first blow vent 11
When motor 620).
In the embodiment of the present invention, the specific location and arrangement mode of the settings such as blow vent, venthole and groove are not made
It is specific to limit, as long as meeting corresponding for first position and the second position.Such as the preferred of above-described embodiment,
One blow vent 11, the second blow vent 12, third blow vent 13 and the 4th blow vent 14 are set on the periphery of valve body 1, and first goes out
Stomata 21, the second venthole 22, the first groove 23 and the second groove 24 are set on the periphery of spool 2, and air inlet 25 is set to valve
On the end face of core 2.When no matter valve body 1 is cylinder in the embodiment, it is one end open or both ends open, can realizes.
As another preferred embodiment, Fig. 3 a are schematic diagram when spool 2 is located at first position relative to valve body 1；
Fig. 3 b are schematic diagram when spool 2 is located at the second position relative to valve body 1.As shown in Figure 3a and Figure 3b shows, in valve body 1 and spool 2
When being cylindrical shape (or relatively turnable any shape such as truncated cone-shaped, this is illustrated by taking cylinder as an example), blow vent can be with
(in the present embodiment cylinder have end face) is set on the end face of valve body 1, venthole and groove are set to the end face of spool 2
On.First blow vent 11, the second blow vent 12, third blow vent 13 and the 4th blow vent 14 are set to an end face of valve body 1
On concentric circles, the first venthole 21, the second venthole 22, the first groove 23 and the second groove 24 are set to one of spool 2 relatively
On the concentric circles for the end face answered, two concentric circles overlap.The first venthole 21 and the first blow vent 11 are with respect to (in Fig. 3 a in Fig. 3 a
Overlapping), the second groove 24 is connected to third blow vent 13 and the 4th blow vent 14.Spool 2 is relative to valve body 1 by the first of Fig. 3 a
Position is rotated clockwise to the second position shown in Fig. 3 b, and the second venthole 22 and third blow vent 13 are with respect to (in Fig. 3 b at this time
Overlapping), the first groove 23 is connected to the first blow vent 11 and the second blow vent 12.Spool 2 is as crossed to be set to relative to air inlet 25
On the end face of spool 2.
Referring to Fig. 4 a and Fig. 4 b, in another embodiment of the present invention, the first blow vent 11 and the second blow vent 12
In on the same circumference of valve body 1, third blow vent 13 and the 4th blow vent 14 are located on the same circumference of valve body 1；First outlet
Hole 21 and the first groove 23 are located on the same circumference of spool 2, and the second venthole 22 and the second groove 24 are located at the same of spool 2
On circumference.It (is embodied in the expanded view of Fig. 4 a and Fig. 4 b relative to the rotation of valve body 1 by spool 2, shows as opposite fortune up and down
It is dynamic), when spool 2 is located at first position relative to valve body 1, the first venthole 21 and the first blow vent 11 are opposite, the second groove 24
It is connected to third blow vent 13 and the 4th blow vent 14；When spool 2 is located at the second position relative to valve body 1, the second venthole 22
Opposite with third blow vent 13, the first groove 23 is connected to the first blow vent 11 and the second blow vent 12.
Referring to Fig. 5, in another embodiment of the invention, valve body 1 is the cylinder that cross section is rectangle, the main body of spool 2
Partial cross section is also rectangle, to be adapted with valve body 1.Certainly, come with 1 matched face of valve body as long as spool 2 has
First groove 23 and the second groove 24 and the first venthole 21 and the second venthole 22 are set, however it is not limited to this.Such as spool 2
Cross section can be two trapezoidal infundibulates being combined into or other any shapes.In the present embodiment, spool 2 is relative to valve body 1
It slides and is located at first position or the second position.First blow vent 11, the second blow vent 12, third blow vent 13 and the 4th are ventilated
Mouth 14 is divided into two rows, and the first venthole 21 and the first groove 23 form one opposite with the first blow vent 11 and the second blow vent 12
Row, the second venthole 22 and the second groove 24 form a row opposite with third blow vent 13 and the 4th blow vent 14.This implementation
It, can be by the cooperation of positioning pin 52 and locating slot 51, in realization first position and the after spool 2 is assembled in valve body 1 in example
While two positions position, spool 2 and the assembly limit of valve body 1 are realized.Certainly, other constructions can also be further increased to realize
Spool 2 and the assembly limit of valve body 1.The changement 3 moved relative to valve body 1 as driving spool 2 can be affixed to spool
Handle on 2 can also be equipped with the gear mechanism between spool 2 and valve body 1.
Equally, in spool 2 and the embodiment of the opposite sliding of valve body 1, the first blow vent 11, the second blow vent 12, third
Blow vent 13 and the 4th blow vent 14 in a row can also be arranged, and the first venthole 21, the second venthole 22, the first groove 23
With the second groove 24 also corresponding setting in a row.Specific distribution can refer to Fig. 4 a and Fig. 4 b.
In embodiment shown in FIG. 1, the first blow vent 11, the second blow vent 12, third blow vent 13 and the 4th blow vent
14 are distributed at two rows, the first blow vent 11 and the setting of 13 pairs of linea angulata of third blow vent.Referring to Fig. 6, embodiment shown in Fig. 1
On the basis of, by adjusting the first venthole 21, the second venthole 22, the first groove 23 and the second groove 24 on spool 2
The first blow vent 11 and third blow vent 13 may be implemented in same row in position.
In the embodiment of the present invention, the specific configuration of changement 3 is not construed as limiting.For example, changement 3 can be handle,
Handle (referring to Fig. 1), gear structure etc..Handle can generally be connect with spool 2, by holding movement of the handle along spool 2
Direction exerts a force to spool 2, you can driving spool 2 is slided relative to valve body 1.Or connect handle with spool 2, it is driven by handle
Spool 2 is set to be rotated relative to valve body 1.Handle and handle etc. are preferably detachably connected with spool 2.As for driving spool 2 relative to
Valve body 1 relatively rotates or the changement 3 of the gear structure of sliding or other concrete forms, on the basis of the embodiment of the present invention
On, those skilled in the art are easy to get, and details are not described herein.
In the embodiment of the present invention, spool 2 and the assembling structure of valve body 1 are not especially limited.For example, such as Fig. 1 and Fig. 2 institutes
Show, valve body 1 includes cylinder and end cap 16, on cylinder there is mounting flange 15, end cap 16 to be bolted with ring flange 15.
After in the assembly of spool 2 and valve body 1, end cap 16 is connect with cylinder, you can realize that spool 2 and the assembly of valve body 1 limit.Again
For example, valve body 1 can also be to be fastened by symmetrical two parts, it can also realize that spool 2 and the assembly of valve body 1 limit.Or
Person can be by being respectively set position-limit mechanism when valve body 1 is the cylinder of both ends open on the both ends that spool 2 stretches out valve body 1
(such as ring flange 15) realizes that the assembly of spool 2 and valve body 1 limits.Alternatively, referring to Fig. 6, position-limit mechanism is the first limiting plate 7
With the second limiting plate 8, the first limiting plate 7 and the second limiting plate 8 are fixedly connected with the both ends of spool 2 respectively (such as passes through bolt
It is fixed), the both ends phase separation of the first limiting plate 7 and the second limiting plate 8 and valve body 1 exists to limit spool 2 relative to valve body 1
Relative motion in axial direction.Handle as changement 3 can be fixedly connected with the first limiting plate 7.It can be on second limiting plate 8
With air admission hole corresponding with the air inlet 25 on spool 2.This is no longer going to repeat them for other concrete forms.
Can be metal, nonmetallic or metal and nonmetallic combination as the material of spool 2 and valve body 1.
Furthermore it is also possible to include holder, holder is connect with valve body 1.Holder can be to the support of valve body 1 or fixation etc., holder
The stability of valve body 1 can be enhanced, be convenient for switch operation.The concrete form of holder is unlimited, such as can be fixed bracket,
Can be movable support or Collapsible rack.Holder may be a fixed connection with valve body 1, it may also be said to it is detachably connected,
Either it is rotatably connected.This is no longer going to repeat them.
Second aspect, an embodiment of the present invention provides a kind of chain tighteners.Fig. 7 is one embodiment of chain tightener of the present invention
Structural schematic diagram；Fig. 8 shows the connection diagram of the first coupler body and one embodiment of connecting mechanism for rotating in the embodiment of the present invention.
Referring also to Fig. 1 to Fig. 8, chain tightener include driving mechanism 600, rack tube 700, rack 800 and the first coupler body 900, rack
Set 700 is fixedly connected with driving mechanism 600, and rack 800 is assemblied in rack tube 700, and rack 800 is passed with driving mechanism 600
Dynamic connection, driving mechanism 600 drive rack 800 to be slided along rack tube 700, and rack 800 is connect with the first coupler body 900, rack tube
Fixing piece 400 is connected on 700, driving mechanism 600 includes retarder 610 and air motor 620, air motor 620 and deceleration
Device 610 is sequentially connected, and retarder 610 is drivingly connected with rack 800, and the first air holes 621 of air motor 620 passes through the first wind
Pipe 5 connects reversal valve, and the second air holes 622 of air motor 620 connects reversal valve, reversal valve connection compression by the second air hose 6
Air-source.
In the prior art, it needs to be inserted into the first air holes 621 through air hose and carries out positive output, compressed air is by the first air holes
621 enter, and are discharged by the second air holes 622；When needing commutation, needs to pull air hose from the first air holes 621, then insert
Onto the second air holes 622, compressed air is entered by the second air holes 622, is discharged by the first air holes 621, reversed to export.It is not only numerous
It is trivial and inconvenient, or even can not operate in some cases or dangerous.In the chain tightener of the embodiment of the present invention, wind
Dynamic motor 620 connects reversal valve, without plugging air hose between the first air holes 621 and the second air holes 622 of air motor 620
Positive reinfusion can be realized, realize the switching of elastic operation.
In the embodiment of the present invention, the reversal valve of any of the above-described embodiment, as shown in Figure 7, first may be used in reversal valve
Blow vent 11 is connect by the first air hose 5 (only schematic illustration connection relation) with the first air holes 621, and third blow vent 13 is logical
The second air hose 6 (only schematic illustration connection relation) is crossed to connect with the second air holes 622.
In another embodiment of the invention, the first coupler body 900 is rotatably connected by connecting mechanism for rotating and rack 800
It connects.In the present embodiment, the first coupler body 900 can be rotated relative to rack 800, when the object tilt of its connection, avoid tight chain
Device receives distortion power.
In the embodiment of the present invention, the first coupler body 900 and rack 800 can be that a direction is attended class relative rotation, can also
It is class relative rotation in a plurality of directions.For example, Fig. 8 is the first coupler body 900 and connecting mechanism for rotating one in the embodiment of the present invention
The connection diagram of embodiment.Referring to Fig. 8, the first coupler body 900 is parallel with rack 800 relative to the rotary shaft that rack 800 rotates.
Rack 800 is strip object, therefore the straight line parallel for referring to and extending along 800 length direction of rack parallel with rack 800.This
Embodiment can be such that chain tightener distorts to avoid the inclination due to the object being connect with chain tightener (such as scraper plate).
The concrete structure of connecting mechanism for rotating is unlimited in the embodiment of the present invention, such as can be shown in Fig. 8, to make the first hook
Body 900 is rotated along fixing axle relative to rack 800 or connecting mechanism for rotating may be joint coupling.It can make first
Coupler body 900 rotates in a plurality of directions relative to rack 800.
Place is not addressed in the embodiment of the present invention, the prior art can be used.For example, the fixing piece 400 on rack tube 700
Can be the second coupler body, connection machine of first coupler body 900 with the second coupler body as fixing piece 400 as chain tightener both sides
Structure.Retarder can be uniaxial output, can also be as shown in the figure, be exported for twin shaft.The chain tightener of the embodiment of the present invention can
Using air compressor as compressed air source.
In the present invention, term " first ", " second " etc. are only used for the purpose of description, are not understood to indicate or imply
Relative importance or sequence；Term " multiple " then refers to two or more, unless otherwise restricted clearly.Term " installation ",
The terms such as " connected ", " connection ", " fixation " shall be understood in a broad sense, for example, " connection " may be a fixed connection, can also be can
Dismantling connection, or be integrally connected；" connected " can be directly connected, can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In description of the invention, it is to be understood that the orientation or positional relationship of the instructions such as term "upper", "lower" be based on
Orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than indicates or imply institute
The device or unit of finger must have specific direction, with specific azimuth configuration and operation, it is thus impossible to be interpreted as to this hair
Bright limitation.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (14)
1. reversal valve, including：
Valve body, the blow vent for having connection inside and outside on the valve body, the blow vent include the first blow vent, the second blow vent,
Third blow vent and the 4th blow vent；
Spool is assemblied in the valve body, the first venthole and the second outlet for having connection inside and outside on the barrel of the spool
Hole is provided with the first groove and the second groove in the outside wall surface of the spool, also has air inlet on the spool；
Changement, the changement is for driving the spool relative to the valve body；Wherein
When the spool is relative to the valve body to first position, first venthole and the first blow vent phase
Right, second groove is connected to the third blow vent and the 4th blow vent；
When the spool is relative to the valve body to the second position, second venthole and the third blow vent phase
Right, first groove is connected to first blow vent and the second blow vent.
2. reversal valve according to claim 1, which is characterized in that at least described spool has the first groove and second recessed
Slot and the outside wall surface of the first venthole and the second venthole and the internal face sealing with blow vent of the valve body coordinate.
3. reversal valve according to claim 1, which is characterized in that be equipped with positioning knot between the spool and the valve body
Structure.
4. reversal valve according to claim 1, which is characterized in that the spool with valve body relative rotation by being located at
The first position or the second position；Or the spool is slidably disposed in the first position by opposite with the valve body
Or the second position.
5. reversal valve according to claim 1, which is characterized in that the valve body is cylindrical shape, and the spool is cylindrical shape.
6. reversal valve according to claim 5, which is characterized in that first blow vent, the second blow vent, third ventilation
Mouth and the 4th blow vent are set on the periphery of the valve body, first venthole, the second venthole, the first groove and second
Groove is set on the periphery of the spool, and the air inlet is set on the end face of the spool.
7. reversal valve according to claim 6, which is characterized in that first blow vent and the second blow vent are positioned at described
On the same circumference of valve body, the third blow vent and the 4th blow vent are located on the same circumference of the valve body；Described first
Venthole and the first groove are located on the same circumference of the spool, and second venthole and the second groove are located at the spool
Same circumference on.
8. reversal valve according to claim 1, which is characterized in that the changement be handle, the handle with it is described
Spool is detachably connected.
9. reversal valve according to claim 1, which is characterized in that the valve body includes cylinder and end cap, on the cylinder
With mounting flange, the end cap is bolted with the ring flange.
10. chain tightener comprising driving mechanism, rack tube, rack and the first coupler body, the rack tube and the driving mechanism
It is fixedly connected, the rack is assemblied in rack tube, and the rack is sequentially connected with the driving mechanism, and the driving mechanism is driven
The rack is set to be slided along the rack tube, the rack is connect with first coupler body, and fixation is connected on the rack tube
Part, the driving mechanism include retarder and air motor, and the air motor is sequentially connected with the retarder, the deceleration
Device is connect with the rack drives, and the first air holes of the air motor connects reversal valve, the pneumatic horse by the first air hose
The second air holes reached connects reversal valve by the second air hose, and the reversal valve connects compressed air source.
11. chain tightener according to claim 10, which is characterized in that the reversal valve is any one of claim 1-9
The reversal valve, first blow vent are connect by the first air hose with first air holes, and the third blow vent passes through
Second air hose is connect with second air holes.
12. chain tightener according to claim 10, which is characterized in that first coupler body by connecting mechanism for rotating with
The rack is rotatably connected.
13. chain tightener according to claim 11, which is characterized in that first coupler body is relative to the racks turn
Rotary shaft it is parallel with the rack.
14. chain tightener according to claim 11, which is characterized in that the connecting mechanism for rotating is joint coupling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810584084.6A CN108679263B (en) | 2018-06-08 | 2018-06-08 | Reversing valve and chain tightening device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810584084.6A CN108679263B (en) | 2018-06-08 | 2018-06-08 | Reversing valve and chain tightening device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108679263A true CN108679263A (en) | 2018-10-19 |
| CN108679263B CN108679263B (en) | 2021-10-19 |
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ID=63810222
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810584084.6A Active CN108679263B (en) | 2018-06-08 | 2018-06-08 | Reversing valve and chain tightening device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108679263B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219325A (en) * | 2020-01-19 | 2020-06-02 | 沈维强 | Flow-adjustable hydraulic pump |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785215A (en) * | 2012-08-24 | 2012-11-21 | 长治市远路矿用设备有限责任公司 | Chain tightener |
| CN106958551A (en) * | 2016-01-12 | 2017-07-18 | 郑瑞源 | Rotary type hydraulic valve |
-
2018
- 2018-06-08 CN CN201810584084.6A patent/CN108679263B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102785215A (en) * | 2012-08-24 | 2012-11-21 | 长治市远路矿用设备有限责任公司 | Chain tightener |
| CN106958551A (en) * | 2016-01-12 | 2017-07-18 | 郑瑞源 | Rotary type hydraulic valve |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111219325A (en) * | 2020-01-19 | 2020-06-02 | 沈维强 | Flow-adjustable hydraulic pump |
| CN111219325B (en) * | 2020-01-19 | 2021-11-05 | 上海韦航装备科技有限公司 | Flow-adjustable hydraulic pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108679263B (en) | 2021-10-19 |
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Effective date of registration: 20210812 Address after: 046011 southeast of Daxinzhuang village, Daxinzhuang town, suburb, Changzhi City, Shanxi Province Applicant after: CHANGZHI YUANLU MINING EQUIPMENT Co.,Ltd. Address before: 046031 No.202, unit 3, building 24, zone 2, xingzhang Road, Zhangcun village, xibaitu Township, Changzhi suburb, Shanxi Province Applicant before: Wang Yueping |
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