CN207437350U - A kind of extreme pressure pump - Google Patents
A kind of extreme pressure pump Download PDFInfo
- Publication number
- CN207437350U CN207437350U CN201721142126.8U CN201721142126U CN207437350U CN 207437350 U CN207437350 U CN 207437350U CN 201721142126 U CN201721142126 U CN 201721142126U CN 207437350 U CN207437350 U CN 207437350U
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- pump
- water
- water inlet
- pressure
- flow channel
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Abstract
The utility model provides a kind of extreme pressure pump, belongs to water pump technology.It solves the problems, such as that existing extreme pressure pump security is relatively low.This extreme pressure pumps, including pump case and the pump housing being fixed in pump case, there is at least one pump chamber in the pump housing, the inlet opening being connected with pump chamber and apopore are offered on the pump housing, inlet and outlet are offered on pump case respectively, water inlet is connected by water inlet flow channel with inlet opening, and water outlet is connected by outlet passage with apopore, and the pressure relief that outlet passage can be made to be connected with water inlet flow channel when the hydraulic pressure in outlet passage is more than setting value is equipped between water inlet flow channel and outlet passage.This extreme pressure pump has higher security performance.
Description
Technical field
The utility model belongs to water pump technology, is related to a kind of extreme pressure pump.
Background technology
Water pump is the mechanical equipment for conveying liquid or being pressurized liquid, and the technical parameter of pump performance has flow, suction, raises
Journey, shaft power, water-horse power, efficiency etc. can be divided into the types such as volume water pump, vane pump according to different operation principles.Vane pump
It is to transfer energy, such as centrifugal pump using the interaction of rotary vane and water, the centrifugal force for rotating at a high speed and generating in impeller
Under the action of, the water in impeller channel is thrown toward surrounding, is pressed into spiral case, and impeller eye forms vacuum, and water is in external atmospheric pressure
Under be inhaled into supplemented with this space, it is limited yet with centrifugal force, therefore this kind of water pump is lacked there are hydraulic pressure is low, lift is small
It falls into.
And positive displacement pump is to transfer energy using the variation of its swept volume of a single chamber, therefore larger hydraulic pressure can be generated, such as
Chinese invention patent application (application number：201010549615.1) a kind of positive displacement pump is disclosed, cylindrical pump is equipped with including interior
The pump case of chamber, eccentric setting has rotor in pump case；Several radial holes are circumferentially uniformly provided on rotor, coordinate insertion in radial hole
There is a plunger, plunger is equipped with idler wheel towards the end of pump chamber, and when rotor rotates, oil distribution shaft is blocked always in the gradual increased footpath of volume
Be equipped with to hole one side, in radial hole and push the spring that plunger outward is stretched out, the plunger by spring and pump chamber inner wall against, due to
Centrifugal pump using impeller is using centrifugal force, and impeller can dally when the hydraulic pressure of output terminal needs is not achieved in it, make
In vivo hydraulic pressure must be pumped and remain within a relatively low level, but above-mentioned positive displacement pump is difficult to dally, when the hydraulic pressure of output terminal
It is larger and react on pump in vivo rotor when, rotor is difficult to rotate, and easily burns motor.
The content of the invention
The purpose of this utility model is that there are the above problems for existing technology, it is proposed that a kind of extreme pressure pump, the extreme pressure
Pump has higher security performance.
The purpose of this utility model can be realized by following technical proposal：A kind of extreme pressure pump, including pump case and is fixed on
The pump housing in pump case has at least one pump chamber in the pump housing, offered on the pump housing inlet opening that is connected with pump chamber and
Apopore, which is characterized in that offer inlet and outlet on the pump case respectively, the water inlet by water inlet flow channel with
Inlet opening is connected, and the water outlet is connected by outlet passage with apopore, between the water inlet flow channel and outlet passage
Equipped with the pressure relief that outlet passage can be made to be connected with water inlet flow channel when the hydraulic pressure in outlet passage is more than setting value.
Extreme pressure pump is driven by motor so that water is entered by water inlet, is entered successively by water inlet flow channel and inlet opening
In pump chamber, pass through apopore and outlet passage successively after higher hydraulic pressure is generated in pump chamber, discharged by water outlet, and work as pole
Press pump water outlet hydraulic pressure can cause the shipwreck in pump chamber to discharge when excessively high, and then the hydraulic pressure in pump chamber is caused to raise, and work as pump chamber
Interior hydraulic pressure be higher than setting value when, i.e., the hydraulic pressure in outlet passage be higher than setting value, pressure relief can make outlet passage and into
Water flow passage connects, and the water in pump chamber can return to water inlet flow channel through outlet passage, so as to discharge the pressure in pump chamber, avoid pump chamber
Interior hypertonia causes motor to be difficult to drive and burn, while the water of outlet passage is released to water inlet flow channel rather than directly releases
It is external to be put into extreme pressure pump, therefore energy dissipation can be avoided, plays energy-conserving action.
In above-mentioned extreme pressure pump, the pressure relief includes pressure release runner, one end of the pressure release runner and water inlet flow channel
It is connected, the other end is connected with outlet passage, and the spool that can block pressure release runner is connected in the pressure release runner, and is worked as
Spool is opened and water inlet flow channel is made to be connected with outlet passage when hydraulic pressure in outlet passage is more than setting value.It was working normally
Spool blocks pressure release runner in journey, and water inlet flow channel is not connected with outlet passage, when the hydraulic pressure in outlet passage is higher than setting value
Can pushing tow spool, spool open so that water inlet flow channel be connected with outlet passage.
In above-mentioned extreme pressure pump, the outer wall of the pump case is equipped with return port, the inner end of the return port and feed water flow
Road is connected, and valve body is fixed on the pump case outer wall, and above-mentioned pressure release runner is opened on valve body, and pressure release runner is respectively with going out
The mouth of a river and return port are connected, and the spool is slidably arranged in valve body.Valve body is additionally installed on the outer wall of pump case, it is only necessary to
Open up return port on pump case, water outlet is connected by the pressure release runner on valve body with return port, and processing is more convenient.
In above-mentioned extreme pressure pump, the pressure release runner includes the pressure release import being opened on valve body side and pressure release goes out
Mouthful, the pressure release import is opposite with water outlet to be connected, and the pressure relief vent is opposite with return port to be connected, and the pressure release import and is let out
It extrudes mouth by water hole to be connected, the spool is in the form of a column, and spring is additionally provided in valve body, one end phase of the spring and spool
Be connected, under the action of the spring spool other end grafting block in water hole, offered on the lateral surface of the valve body with
The connector that pressure release import is connected.Connector for connecting water pipe, water outlet by pressure release import and connector always with water
Pipe connects, and water hole is between pressure release import and pressure relief vent, when the hydraulic pressure in water pipe and outlet passage is higher than setting value
It being capable of pushing tow spool so that spool compresses spring and departed from the mouth of a river so that cross the mouth of a river and open, is i.e. pressure release import and pressure relief vent
Pressure release is realized in connection.
In above-mentioned extreme pressure pump, slideway is offered in the valve body, which is connected with pressure relief vent, above-mentioned to cross water
Hole is opposite with slideway, and the spool is slidably connected in slideway, and spool grafting is blocked in water hole under the action of the spring.
Slideway is used to install spool and spring so that spool can slide in slideway, so as to block or open water hole, structure letter
Monostable fixed, certainly during actual processing, pressure relief can also directly select solenoid valve, and one is opened up on pump case with going out
The through hole of water flow passage connection, the through hole are directly connected with outside, and then solenoid valve is mounted in through hole, and in outlet passage
The pressure sensor that be connected with solenoid valve is installed, aerial solenoid valve is opened when the pressure value that pressure sensor detects is more than setting value
It opens, realizes pressure release.
In above-mentioned extreme pressure pump, the pump housing is in the form of a column, and the pump case has columnar inner cavity, and above-mentioned pump housing grafting is consolidated
It is scheduled in the inner cavity of pump case, two pump chambers is offered in the pump housing, two pump chamber is axially distributed, the inlet opening on the pump housing
With apopore it is equal there are two, two inlet openings are connected with water inlet flow channel, and two apopores are connected with outlet passage, wherein one
A inlet opening and an apopore are connected with a pump chamber, another inlet opening and another apopore and another pump chamber phase
Connection.Tool is there are two pump chamber in the pump housing, has a higher work efficiency, and two pump chambers are with same water inlet flow channel and going out current
Road connects so that the simpler convenience of connection of pump case and water pipe.
In above-mentioned extreme pressure pump, the water inlet is opened on the end face of pump case, and the water inlet flow channel is located on pump case,
And water inlet flow channel includes the axial direction part one axially set along pump case along the circumferentially disposed circumferential sections one and two of pump case, the circumferential sections
One is located at the end of pump case, and the one end of the both ends of circumferential sections one respectively with two axial direction parts one is connected, two axial direction parts one
The other end be connected respectively with two inlet openings.Pass through circumferential sections one so that the water that water inlet enters flows to pump housing center respectively
The both sides of line are entering the inlet opening of both sides so that overall structure is symmetrically regular through axial direction part one respectively.
In above-mentioned extreme pressure pump, the water inlet is located at the center of pump case end face, and the water inlet is by along footpath
It is connected to the water section of crossing of setting with circumferential sections one, the return port is connected with the middle part of circumferential sections one.By crossing water section, make
The center that water inlet is located at end face is obtained, structure is more regular.
In above-mentioned extreme pressure pump, the outlet passage is opened on the inner wall of pump case, and outlet passage is included vertically
The circumferentially arranged circumferential sections two of the axial direction part two and two of setting, the both ends of the axial direction part two respectively with two circumferential sections two one
End is connected, and the other end of two circumferential sections two is connected respectively with two apopores, and the water outlet is connected with axial direction part two
It is logical.Similarly, by two circumferential sections two, the water that can flow out both sides apopore is collected to the water outlet on pump case side wall so that
Structure is more regular.
Compared with prior art, this extreme pressure pump has the following advantages：
1st, since pressure relief can be such that outlet passage is connected with water inlet flow channel, when the hydraulic pressure in pump chamber is higher than setting
During value, the water in pump chamber can return to water inlet flow channel through outlet passage, so as to discharge the pressure in pump chamber, avoid pump cavity pressure
It is excessively high that motor is caused to be difficult to drive and burn.
It 2nd, can since the water of outlet passage is released to water inlet flow channel rather than is directly released into extreme pressure pump outside
Energy dissipation is avoided, plays energy-conserving action.
3rd, since valve body is additionally installed on the outer wall of pump case, it is only necessary to open up return port on pump case, letting out on valve body
Water outlet is connected by pressure runner with return port, and processing is more convenient.
Description of the drawings
Fig. 1 is the dimensional structure diagram of extreme pressure pump.
Fig. 2 is the structure rearview of extreme pressure pump.
Fig. 3 is the structure sectional view at A-A in Fig. 2.
Fig. 4 is the structure sectional view at B-B in Fig. 3.
Fig. 5 is the structure sectional view at C-C in Fig. 2.
Fig. 6 is the dimensional structure diagram of pump case.
Fig. 7 is the structure sectional view at D-D in Fig. 2.
Fig. 8 is the schematic enlarged-scale view at E in Fig. 5.
In figure, 1, pump case；11st, water inlet；12nd, water outlet；13rd, water inlet flow channel；131st, circumferential sections one；132nd, axial direction part
One；133rd, water section is crossed；14th, outlet passage；141st, axial direction part two；142nd, circumferential sections two；15th, return port；2nd, the pump housing；21st, pump chamber；
22nd, inlet opening；23rd, apopore；3rd, valve body；31st, pressure release runner；311st, pressure release import；312nd, pressure relief vent；313rd, water hole；
32nd, connector；33rd, slideway；4th, spool；5th, spring；6th, pump shaft.
Specific embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1 and Figure 2, a kind of extreme pressure pump, including pump case 1, the pump housing 2 and pump shaft 6, pump case 1 is cylindrical in shape, and has column
Inner cavity, the pump housing 2 is in the form of a column, and the pump housing 2 is fixedly plugged in pump case 1, and pump shaft 6 is rotatably connected in the pump housing 2, pump case 1 it is outer
Block-like valve body 3 is fixed on wall, with reference to shown in Fig. 3, Fig. 4, the end face center position of pump case 1 offers water inlet 11, is pumping
Water inlet flow channel 13 is further opened on shell 1, which includes pumping along circumferentially disposed one 131 and two edge of circumferential sections of pump case 1
The axial direction part 1 that shell 1 is axially set, circumferential sections 1 are located at the end of pump case 1, and water inlet 11 is by being disposed radially
It crosses water section 133 with circumferential sections 1 to be connected, the one end of the both ends of circumferential sections 1 respectively with two axial direction parts 1 is connected
It is logical, and there are two pump chambers 21 in the pump housing 2, two pump chamber 21 is axially distributed, and two inlet openings are offered on the side wall of the pump housing 2
22, which is connected respectively with two pump chambers 21, and the other end of two axial direction parts 1 is connected respectively with two inlet openings 22
It is logical.With reference to shown in Fig. 5, Fig. 6, Fig. 7, water outlet 12 is offered on the side wall of pump case 1, water outlet is further opened on 1 inner wall of pump case
Runner 14, outlet passage 14 include the circumferentially arranged circumferential sections 2 142 of axially disposed axial direction part 2 141 and two, water outlet
Mouth 12 is connected with axial direction part 2 141, and the one end of the both ends of axial direction part 2 141 respectively with two circumferential sections 2 142 is connected,
Two apopores 23 are offered on the side wall of the pump housing 2, which is connected respectively with two pump chambers 21, two circumferential sections 2 142
The other end be connected respectively with two apopores 23.
With reference to shown in Fig. 8, pressure release runner 31 is offered in valve body 3, which includes being opened on 3 side of valve body
Pressure release import 311 and pressure relief vent 312, the outer wall of pump case 1 be equipped with return port 15, the return port 15 and circumferential sections 1
Middle part be connected, pressure relief vent 312 and return port 15 are opposite connect, and pressure release import 311 and water outlet 12 are with respect to connecting, pressure release
Import 311 is connected with pressure relief vent 312 by water hole 313, and slideway 33 is further opened in valve body 3, the slideway 33 and mistake
Water hole 313 is opposite to be connected, and slidably connects columnar spool 4 in slideway 33, spring 5 is additionally provided in slideway 33, the spring 5 with
One end of spool 4 is fixedly connected with, and the other end of spool 4 is crossing water towards pressure release import 311 and grafting closure under the action of spring 5
In hole 313, spool 4 can be ejected water hole 313 when the hydraulic pressure in outlet passage 14 is more than setting value so that pressure release import
311 are connected with pressure relief vent 312.The connector 32 being connected with pressure release import 311 is offered on the lateral surface of valve body 3, even
Interface 32 is used to connect water pipe.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although the terms such as pump case 1, water inlet 11, water outlet 12 are used more herein, it is not precluded from using other
The possibility of term.The use of these terms is merely for the convenience of describing and explaining the nature of the invention；Them
It is all contrary to the spirit of the present invention to be construed to any one of the additional limitations.
Claims (9)
1. a kind of extreme pressure pump, including pump case (1) and the pump housing (2) being fixed in pump case (1), has at least in the pump housing (2)
One pump chamber (21) offers the inlet opening (22) being connected with pump chamber (21) and apopore (23), feature on the pump housing (2)
It is, offer water inlet (11) and water outlet (12) on the pump case (1) respectively, the water inlet (11) passes through water inlet flow channel
(13) it is connected with inlet opening (22), the water outlet (12) is connected by outlet passage (14) with apopore (23), described
Being equipped between water inlet flow channel (13) and outlet passage (14) can use when the hydraulic pressure in outlet passage (14) is more than setting value
The pressure relief that water flow passage (14) is connected with water inlet flow channel (13).
2. extreme pressure pump according to claim 1, which is characterized in that the pressure relief includes pressure release runner (31), this is let out
One end of pressure runner (31) is connected with water inlet flow channel (13), and the other end is connected with outlet passage (14), the pressure release runner
(31) spool (4) that can block pressure release runner (31) is connected in, and when the hydraulic pressure in outlet passage (14) is more than setting value
When spool (4) open and water inlet flow channel (13) is made to be connected with outlet passage (14).
3. extreme pressure pump according to claim 2, which is characterized in that the outer wall of the pump case (1) is equipped with return port (15),
The inner end of the return port (15) is connected with water inlet flow channel (13), and valve body (3) is fixed on pump case (1) outer wall, above-mentioned
Pressure release runner (31) is opened on valve body (3), and pressure release runner (31) is connected respectively with water outlet (12) and return port (15),
The spool (4) is slidably arranged in valve body (3).
4. extreme pressure pump according to claim 3, which is characterized in that the pressure release runner (31) includes being opened in valve body (3)
Pressure release import (311) and pressure relief vent (312) on side, the pressure release import (311) is opposite with water outlet (12) to be connected, institute
It states pressure relief vent (312) to connect relatively with return port (15), the pressure release import (311) and pressure relief vent (312) are by crossing water
Hole (313) is connected, and the spool (4) is in the form of a column, and spring (5) is additionally provided in valve body (3), the spring (5) and spool (4)
One end is fixedly connected with, and the other end grafting closure of spool (4) is in water hole (313) under the action of spring (5), the valve body
(3) connector (32) being connected with pressure release import (311) is offered on lateral surface.
5. extreme pressure pump according to claim 4, which is characterized in that offer slideway (33), the slideway in the valve body (3)
(33) it is connected with pressure relief vent (312), with slideway (33) relatively, the spool (4) is slidably connected at above-mentioned water hole (313)
In slideway (33), and spool (4) grafting closure is interior in water hole (313) under the action of spring (5).
6. the extreme pressure pump according to any one in claim 3 to 5, which is characterized in that the pump housing (2) is in the form of a column, institute
Pump case (1) is stated with columnar inner cavity, the above-mentioned pump housing (2) plugged and fixed is opened in the inner cavity of pump case (1) in the pump housing (2)
Equipped with two pump chambers (21), two pump chamber (21) is axially distributed, and the inlet opening (22) and apopore (23) on the pump housing (2) are equal
There are two, two inlet openings (22) are connected with water inlet flow channel (13), and two apopores (23) are connected with outlet passage (14),
One of inlet opening (22) and an apopore (23) are connected with a pump chamber (21), another inlet opening (22) and another
A apopore (23) is connected with another pump chamber (21).
7. extreme pressure pump according to claim 6, which is characterized in that the water inlet (11) is opened in the end face of pump case (1)
On, the water inlet flow channel (13) is located on pump case (1), and water inlet flow channel (13) is included along the circumferentially disposed circumferential sections of pump case (1)
One (131) and two axial direction parts one (132) axially set along pump case (1), the circumferential sections one (131) are located at the end of pump case (1)
Portion, and the one end of the both ends of circumferential sections one (131) respectively with two axial direction parts one (132) is connected, two axial direction parts one (132)
The other end be connected respectively with two inlet openings (22).
8. extreme pressure pump according to claim 7, which is characterized in that the water inlet (11) is located in pump case (1) end face
Heart position, the water inlet (11) are connected by the water section (133) of crossing being disposed radially with circumferential sections one (131), described time
Discharge orifice (15) in the middle part of circumferential sections one (131) with being connected.
9. extreme pressure pump according to claim 6, which is characterized in that the outlet passage (14) is opened in the interior of pump case (1)
On wall, and outlet passage (14) includes axially disposed axial direction part two (141) and two circumferentially arranged circumferential sections two
(142), the one end of the both ends of the axial direction part two (141) respectively with two circumferential sections two (142) is connected, two circumferential sections two
(142) the other end is connected respectively with two apopores (23), and the water outlet (12) is connected with axial direction part two (141).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721142126.8U CN207437350U (en) | 2017-09-07 | 2017-09-07 | A kind of extreme pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721142126.8U CN207437350U (en) | 2017-09-07 | 2017-09-07 | A kind of extreme pressure pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437350U true CN207437350U (en) | 2018-06-01 |
Family
ID=62302335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721142126.8U Expired - Fee Related CN207437350U (en) | 2017-09-07 | 2017-09-07 | A kind of extreme pressure pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437350U (en) |
-
2017
- 2017-09-07 CN CN201721142126.8U patent/CN207437350U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20210907 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |