CN106523355A - Transient damping and reversing preventing structure of rotor piston pump - Google Patents
Transient damping and reversing preventing structure of rotor piston pump Download PDFInfo
- Publication number
- CN106523355A CN106523355A CN201610994580.XA CN201610994580A CN106523355A CN 106523355 A CN106523355 A CN 106523355A CN 201610994580 A CN201610994580 A CN 201610994580A CN 106523355 A CN106523355 A CN 106523355A
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- China
- Prior art keywords
- chamber
- gear
- pump
- return
- check 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/28—Safety arrangements; Monitoring
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2270/00—Control; Monitoring or safety arrangements
- F04C2270/70—Safety, emergency conditions or requirements
- F04C2270/72—Safety, emergency conditions or requirements preventing reverse rotation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention discloses a transient damping and reversing preventing structure of a rotor piston pump. The transient damping and reversing preventing structure of the rotor piston pump comprises a driven shaft and a gear box cover which are positioned on the rotor piston pump. The transient damping and reversing preventing structure of the rotor piston pump is characterized by comprising a non-return seat, a plurality of non-return buckles which are positioned on the non-return seat, an axial ratchet wheel which is in contact with the non-return buckles, and an outer driven gear which is positioned in one end of the axial ratchet wheel, wherein one end of the axial ratchet wheel is positioned in an oil cylinder body which is fixed to the gear box cover of the rotor piston pump. With the adoption of the transient damping and reversing preventing structure, the impact can be reduced and the impacting force can be absorbed when a core of the rotor piston pump transiently reverses, and moreover, the core of the pump can be stabilized and effectively prevented from being reversed.
Description
【Technical field】
The present invention relates to the technical field of pump housing brake unit, the transient state of more particularly to a kind of rotopiston pump is damped prevents
Inversion structures.
【Background technology】
When rotopiston pump is shut down during running up suddenly, as the import and export of pump have pressure differential, go out
Mouthful pressure will cause rotor or impeller in piston pump to reverse more than inlet pressure, and make rotor or impeller tightens nut pine
It is dynamic to come off, rotor or impeller failure are caused when serious；Meanwhile, the reversion of pump causes pipeline water hammer, causes system shock, causes
Motor and device damage, cause mechanical seal to damage.
In order to avoid the generation of pump housing Reversion, unilateral bearing is installed on the rotary body of pump generally at this stage, this kind
Bearing arrangement normal use under low pressure operating mode, but when carrying out reverse-rotation preventing function under high voltage transient operating mode, due to moment impact
Power is lifted, and easily causes unilateral bearing to fail.
So being badly in need of a kind of moment anti-reverse-rotation structure, under moment reversing damped condition, being prevented from can be with weak while reversion
Change impact, absorb instant impact.
【The content of the invention】
The purpose of the present invention is exactly pump core cannot stably be had under high voltage transient operating mode to solve prior art
The anti-reverse braking of effect, proposes a kind of transient state damping anti-reverse-rotation structure of rotopiston pump, for rotary piston pump core moment
Under reversing damped condition, impact can be weakened, absorb impulsive force, and stablizing effectively prevents pump core from inverting.
For achieving the above object, the present invention proposes a kind of transient state damping anti-reverse-rotation structure of rotopiston pump, including position
Driven shaft and gear box cover on the rotopiston pump, it is characterised in that also include：
- non-return seat, in annular, non-return seat endoporus is fixedly set in driven shaft one end of rotopiston pump to the non-return seat
On；
- non-return fastener, the non-return fastener are arranged between non-return fastener and the non-return seat circumferentially on non-return seat end face
There is spring；
- axial ratchet, described axial ratchet one end are provided with ratchet, and the other end is provided with integral type internal gear, described interior
The oil through of multiple axial arrays is provided with the cylindrical outer wall of gear, the axial ratchet is coaxially arranged with non-return seat, and
Wavy spring, ratchet and non-return fastener joint are provided between axial ratchet and non-return seat；
- driven external gear, the driven external gear are fixed in the internal gear by a jackshaft, described driven outer
Gear is connected by gear teeth intermeshing with internal gear；
- cylinder body, the cylinder body are enclosed within the outside of the cylinder wall of the internal gear, and flange is provided with cylinder body, oil
Cylinder body is fixed by screws on the gear box cover of rotopiston pump, so as to carrying the non-return fastener of spring and being connected to ripple bullet
The axial ratchet of spring carries out axial constraint；
The side of cylinder body is provided with the first chamber of vertical distribution and the second chamber below first chamber, described
Enclose between the internal face of the cylindrical outer wall and cylinder body of external gear and be provided with the 3rd chamber and the 4th chamber below the 3rd chamber
Room；The first check valve for being respectively arranged between the second chamber and the 4th chamber positioned at second chamber side and vertically arranging
With above the second chamber and the second horizontally disposed check valve, the conducting direction of first check valve is from the 4th chamber
To second chamber, the conducting direction of second check valve is from second chamber to the 4th chamber；Below the first chamber and
Side is respectively arranged with the 3rd check valve that is connected with second chamber and vertically arranged and is connected and vertically arranges with the 3rd chamber
The 4th check valve, the conducting direction of the 3rd check valve be from first chamber to second chamber, the 4th check valve
Conducting direction is from the 3rd chamber to first chamber.
Preferably, the other end of the driven shaft is set with sliding bearing, the sliding bearing is arranged on a pump cover
On, the driving shaft of a distribution parallel with the driven shaft, the driving shaft are additionally provided between the pump cover and gear box cover
Be provided with the rotor that is meshed on driven shaft, the rotor exterior is provided with the pump housing, the pump housing by screw with it is described
Pump cover is fixedly connected；Gear-box is provided between the pump housing and the gear box cover, the driven shaft and master in the gear-box
Ball bearing and intermeshing synchromesh gear are provided with moving axis；Driven shaft and driving shaft between the pump housing and gear-box
Place is provided with sealing ring.
Preferably, the quantity of the non-return fastener is 8-9.
Preferably, the number of teeth of the internal gear is 9-13, the number of teeth few of the gear ratio internal gear of driven external gear
It is individual.
Beneficial effects of the present invention：The present invention is anti-reverse by the driven shaft end of rotopiston pump is arranged transient state damping
Structure, wherein transient state damping anti-reverse-rotation structure includes chamber fluid transformational structure, under high voltage transient impact, effectively can enter
Row absorbing, and stably brake, the rotopiston pump of unexpected stalling is prevented because outlet pressure occurs to reverse more than inlet pressure.
The feature and advantage of the present invention will combine accompanying drawing by embodiment and be described in detail.
【Description of the drawings】
Fig. 1 is the front view that the transient state of rotopiston pump of the present invention damps anti-reverse-rotation structure；
Fig. 2 is A-A visual angles profile in Fig. 1；
Fig. 3 is B-B visual angles profile in Fig. 2；
Fig. 4 is the assembling structure schematic diagram of present invention practical application in rotopiston pump；
Fig. 5 is the rotor structure schematic diagram of rotopiston pump in the present invention.
In figure：In 1- non-return seats, 2- axial ratchets, 3- cylinder bodies, 4- driven shafts, 5- non-return fasteners, the driven external gears of 6-, 7-
Countershaft, 8- ripple springs, 9- flanges, 10- gear-boxes, 11- sliding bearings, 12- pump covers, 13- rotors, the 14- pump housings, 15- sealings
Ring, 16- driving shafts, 17- ball bearings, 18- synchromesh gears, 19- gear box covers, 201- internal gears, 301- first chambers, 302-
Three check valves, the second check valves of 303-, 304- second chambers, the first check valves of 305-, the 3rd chambers of 306-, the 4th chambers of 307-
Room, the 4th check valves of 308-.
【Specific embodiment】
Refering to Fig. 1～Fig. 5, the transient state damping anti-reverse-rotation structure of a kind of rotopiston pump of the invention, including positioned at rotor work
Driven shaft 4 and gear box cover 19 on plug pump, it is characterised in that also include：
- non-return seat 1, in annular, 1 endoporus of non-return seat is fixedly set in the driven shaft 4 of rotopiston pump to the non-return seat 1
On one end；
- non-return fastener 5, the non-return fastener 5 circumferentially on 1 end face of non-return seat, non-return fastener 5 and the non-return seat 1 it
Between be provided with spring；
- axial ratchet 2,2 one end of the axial ratchet are provided with ratchet, and the other end is provided with integral type internal gear 201, institute
The oil through of multiple axial arrays is provided with the cylindrical outer wall for stating internal gear 201, the axial ratchet 2 is coaxial with non-return seat 1
Arrangement, and is provided with wavy spring 8 between axial ratchet 2 and non-return seat 1, ratchet and 5 joint of non-return fastener；
- driven external gear 6, the driven external gear 6 are fixed in the internal gear 201 by a jackshaft 7, described
Driven external gear 6 is connected by gear teeth intermeshing with internal gear 201；
- cylinder body 3, the cylinder body 3 are enclosed within the outside of the cylinder wall of the internal gear 201, are provided with method on cylinder body 3
Blue 9, cylinder body 3 is fixed by screws on the gear box cover 19 of rotopiston pump, so as to carrying the non-return fastener 5 of spring and connecting
Then the axial ratchet 2 of ripple spring 8 carries out axial constraint；
The side of cylinder body 3 is provided with the first chamber 301 of vertical distribution and the second chamber below first chamber 301
Room 304, encloses between the internal face of the cylindrical outer wall and cylinder body 3 of the external gear and is provided with the 3rd chamber 306 and is located at the 3rd chamber
The 4th chamber 307 below room 306；It is respectively arranged with positioned at second chamber between the second chamber 304 and the 4th chamber 307
304 sides the first check valve 305 for vertically arranging and above second chamber 304 and the second horizontally disposed check valve
303, the conducting direction of first check valve 305 is second check valve 303 from the 4th chamber 307 to second chamber 304
Conducting direction be from second chamber 304 to the 4th chamber 307；Below the first chamber 301 and side be respectively arranged with
Second chamber 304 is connected and the 3rd check valve 302 vertically arranged and the 4th list for being connected with the 3rd chamber 306 and vertically being arranged
To valve 308, the conducting direction of the 3rd check valve 302 is that, from first chamber 301 to second chamber 304, the described 4th is unidirectional
The conducting direction of valve 308 is from the 3rd chamber 306 to first chamber 301.
The other end of the driven shaft 4 is set with sliding bearing 11, and the sliding bearing 11 is arranged on a pump cover 12,
The driving shaft 16 of one and 4 parallel distribution of the driven shaft, the master are additionally provided between the pump cover 12 and gear box cover 19
The rotor 13 being meshed is provided with moving axis 16 and driven shaft 4, the pump housing 14, the pump housing 14 outside the rotor 13, is provided with
It is fixedly connected with the pump cover 12 by screw；Gear-box 10, institute are provided between the pump housing 14 and the gear box cover 19
State ball bearing 17 and intermeshing synchromesh gear 18 are provided with driven shaft 4 and driving shaft 16 in gear-box 10；It is described
Sealing ring 15 is provided with driven shaft 4 and driving shaft 16 between the pump housing 14 and gear-box 10.
The quantity of the non-return fastener 5 is 8-9.
The number of teeth of the internal gear 201 is 9-13, and the number of teeth of the gear ratio internal gear 201 of driven external gear 6 is few one.
The course of work of the present invention：
A kind of transient state damping anti-reverse-rotation structure of rotopiston pump of the present invention, when rotopiston pump is quit work suddenly,
If the inlet pressure of pump is less than outlet pressure, non-return seat 1 is rotated backward with driven shaft 4, drives non-return fastener 5 to rotate backward, axially
Ratchet 2 is inverted by the twisting force of non-return fastener 5, drives the internal gear 201 of integral type to rotate, and internal gear 201 drives position in the inner
The driven external gear 6 in portion is rotated；Liquid full of viscosity more than 150 in first chamber 301 and second chamber 304 in cylinder body 3
Force feed, the hydraulic oil in first chamber 301 press logical 3rd check valve 302 under gravity, make second chamber 304 be full of hydraulic pressure
Oil, rotary piston sudden-stop of bump when inverting, driven external gear 6 is rotated clockwise, and the 306 original hydraulic oil for accumulating of the 3rd chamber leads to
Cross oil through and be stressed and act on and enter the 4th chamber 307, last hydraulic oil is delayed by the damping action of the first check valve 305
Slow-motion enters second chamber 304, and after second chamber 304 is full of hydraulic oil, then driven shaft 4 stops operating.
Above-described embodiment is the description of the invention, is not limitation of the invention, it is any to simple transformation of the present invention after
Scheme belong to protection scope of the present invention.
Claims (4)
1. a kind of transient state of rotopiston pump damps anti-reverse-rotation structure, including driven shaft (4) and tooth on rotopiston pump
Wheel case lid (19), it is characterised in that：Also include：
- non-return seat (1), in annular, non-return seat (1) endoporus is fixedly set in the driven of rotopiston pump to the non-return seat (1)
On axle (4) one end；
- non-return fastener (5), the non-return fastener (5) circumferentially on non-return seat (1) end face, non-return fastener (5) and the non-return seat
(1) spring is provided between；
- axial ratchet (2), described axial ratchet (2) one end are provided with ratchet, and the other end is provided with integral type internal gear (201),
The oil through of multiple axial arrays, the axial ratchet (2) and non-return seat are provided with the cylindrical outer wall of the internal gear (201)
(1) it is coaxially arranged, and between axial ratchet (2) and non-return seat (1), be provided with wavy spring (8), ratchet and non-return fastener (5) phase
Meet place；
- driven external gear (6), the driven external gear (6) are fixed in the internal gear (201) by a jackshaft (7),
The driven external gear (6) is connected by gear teeth intermeshing with internal gear (201)；
- cylinder body (3), the cylinder body (3) are enclosed within the outside of the cylinder wall of the internal gear (201), are arranged on cylinder body (3)
There is flange (9), cylinder body (3) is fixed by screws on the gear box cover (19) of rotopiston pump, so as to carrying spring
Non-return fastener (5) and it is connected to the axial ratchet (2) of ripple spring (8) and carries out axial constraint；
The side of cylinder body (3) is provided with the first chamber (301) of vertical distribution and be located at below first chamber (301) second
Chamber (304), encloses between the internal face of the cylindrical outer wall and cylinder body (3) of the external gear and is provided with the 3rd chamber (306) and position
The 4th chamber (307) below the 3rd chamber (306)；Set between the second chamber (304) and the 4th chamber (307) respectively
The first check valve (305) for being equipped with positioned at second chamber (304) side and vertically arranging and it is located above second chamber (304) simultaneously
Horizontally disposed the second check valve (303), the conducting direction of first check valve (305) are from the 4th chamber (307) to
Two chambers (304), the conducting direction of second check valve (303) is from second chamber (304) to the 4th chamber (307)；Institute
State below first chamber (301) and side is respectively arranged with the 3rd check valve for being connected with second chamber (304) and vertically arranging
(302) the 4th check valve (308) that and with the 3rd chamber (306) is connected and vertically arranges, the 3rd check valve (302) are led
Logical direction is that the conducting direction of the 4th check valve (308) is from the 3rd from first chamber (301) to second chamber (304)
Chamber (306) is to first chamber (301).
2. the transient state of rotopiston pump as claimed in claim 1 damps anti-reverse-rotation structure, it is characterised in that：The driven shaft
(4) the other end is set with sliding bearing (11), and the sliding bearing (11) is arranged on a pump cover (12), the pump cover
(12) driving shaft (16) of a distribution parallel with the driven shaft (4), the master are additionally provided between gear box cover (19)
The rotor (13) being meshed is provided with moving axis (16) and driven shaft (4), outside the rotor (13), the pump housing (14) is provided with,
The pump housing (14) is fixedly connected with the pump cover (12) by screw；Between the pump housing (14) and the gear box cover (19)
Gear-box (10) is provided with, on the driven shaft (4) and driving shaft (16) in the gear-box (10), ball bearing (17) is provided with
With intermeshing synchromesh gear (18)；Driven shaft (4) and driving shaft (16) between the pump housing (14) and gear-box (10)
Place is provided with sealing ring (15).
3. the transient state of rotopiston pump as claimed in claim 1 damps anti-reverse-rotation structure, it is characterised in that：The non-return fastener
(5) quantity is 8-9.
4. the transient state of rotopiston pump as claimed in claim 1 damps anti-reverse-rotation structure, it is characterised in that：The internal gear
(201) the number of teeth is 9-13, and the number of teeth of the gear ratio internal gear (201) of driven external gear (6) is few one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610994580.XA CN106523355A (en) | 2016-11-11 | 2016-11-11 | Transient damping and reversing preventing structure of rotor piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610994580.XA CN106523355A (en) | 2016-11-11 | 2016-11-11 | Transient damping and reversing preventing structure of rotor piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106523355A true CN106523355A (en) | 2017-03-22 |
Family
ID=58351020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610994580.XA Pending CN106523355A (en) | 2016-11-11 | 2016-11-11 | Transient damping and reversing preventing structure of rotor piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106523355A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3799692A (en) * | 1972-09-22 | 1974-03-26 | Carrier Corp | Anti-reverse rotation structure for rotary gas compressors |
| CN201155475Y (en) * | 2007-12-29 | 2008-11-26 | 上海东方泵业(集团)有限公司 | Vertical pump reverse turn prevention device |
| CN204152828U (en) * | 2014-10-09 | 2015-02-11 | 无锡利欧锡泵制造有限公司 | Water pump anti-reverse mechanism |
| CN205423204U (en) * | 2016-03-21 | 2016-08-03 | 温州博铭机械有限公司 | Reverse rotator is prevented to latent oily charge pump of modified |
| CN206190516U (en) * | 2016-11-11 | 2017-05-24 | 浙江大学城市学院 | Transient state damping inversion -preventing structure of rotopiston pump |
-
2016
- 2016-11-11 CN CN201610994580.XA patent/CN106523355A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3799692A (en) * | 1972-09-22 | 1974-03-26 | Carrier Corp | Anti-reverse rotation structure for rotary gas compressors |
| CN201155475Y (en) * | 2007-12-29 | 2008-11-26 | 上海东方泵业(集团)有限公司 | Vertical pump reverse turn prevention device |
| CN204152828U (en) * | 2014-10-09 | 2015-02-11 | 无锡利欧锡泵制造有限公司 | Water pump anti-reverse mechanism |
| CN205423204U (en) * | 2016-03-21 | 2016-08-03 | 温州博铭机械有限公司 | Reverse rotator is prevented to latent oily charge pump of modified |
| CN206190516U (en) * | 2016-11-11 | 2017-05-24 | 浙江大学城市学院 | Transient state damping inversion -preventing structure of rotopiston pump |
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| C06 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20170322 |