CN219754793U - Gear pump with rear inlet and rear outlet - Google Patents
Gear pump with rear inlet and rear outlet Download PDFInfo
- Publication number
- CN219754793U CN219754793U CN202320230987.0U CN202320230987U CN219754793U CN 219754793 U CN219754793 U CN 219754793U CN 202320230987 U CN202320230987 U CN 202320230987U CN 219754793 U CN219754793 U CN 219754793U
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- gear pump
- gear
- shaft
- driving
- driving shaft
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- 238000007789 sealing Methods 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 239000000523 sample Substances 0.000 claims description 3
- 230000007306 turnover Effects 0.000 claims description 3
- 238000004080 punching Methods 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
The utility model discloses a back-in and back-out gear pump, which comprises a gear pump shell, a front cover and a back cover, wherein a driving shaft is arranged on the gear pump shell, a driving gear is arranged in the gear pump shell, a driven shaft is arranged on the gear pump shell, a driven gear is arranged on a punching shaft, the driving gear and the driven gear are meshed with each other, an oil inlet and an oil outlet are respectively arranged on the back cover, an annular groove is formed in the gear pump shell and positioned at the outer side of the driving shaft, and a brake piece assembly convenient to control is arranged in the annular groove; according to the utility model, the rotating speed pressure of the gear pump is sensed by the rotating speed sensor, an external servo motor receives an electric signal and transmits the electric signal to the air cylinder, and the telescopic end of the air cylinder pushes the mounting bar block to move so as to drive the brake sheet assembly to brake the driving shaft, so that the rotating speed of the driving shaft is reduced, the damage to parts caused by the overlarge internal pressure of the gear pump in operation is avoided, and the service life of the gear pump is ensured.
Description
Technical Field
The utility model relates to the technical field of hydraulic gear pumps, in particular to a back-in back-out gear pump.
Background
Gear pumps are rotary pumps that rely on the change and movement of working volume created between the pump body and the meshing gears to deliver or pressurize fluid. When the gears rotate, the volume of the space at the disengaging side of the gears is changed from small to large, vacuum is formed, liquid is sucked in, the volume of the space at the engaging side of the gears is changed from large to small, and the liquid is extruded into the pipeline.
The existing gear pump is connected with the motor through a coupling, the two ends of the gear pump are required to be connected with a pipeline and a flange, the pressure of the discharge outlet of the gear pump depends on the resistance of the pump outlet, a driving shaft in the gear pump is connected with the motor to drive the driving gear to rotate in the running process of the gear pump, the driven gear is driven to rotate, the valve is not closed at the outlet side in running, the internal pressure of the gear pump is possibly overlarge and parts are damaged after long-time use, and the service life of the gear pump is reduced.
Disclosure of Invention
The utility model aims to provide a rear-in rear-out gear pump so as to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a back business turn over back goes out gear pump, includes gear pump housing, protecgulum and hou gai, be provided with the drive shaft on the gear pump housing, be provided with the driving gear in the inside that is located gear pump housing on the drive shaft, be provided with the driven shaft on the gear pump housing, be provided with driven gear on the punching shaft, intermesh between driving gear and the driven gear, be provided with oil inlet and oil-out respectively on the back lid, the ring channel has been seted up in the outside that is located the drive shaft in the gear pump housing, be provided with the brake piece subassembly of being convenient for control in the gear pump housing on being located the ring channel.
Preferably, sealing rings are arranged between the front cover and the gear pump housing and between the rear cover and the gear pump housing, and the front cover and the gear pump housing and the rear cover and the gear pump housing are fixedly connected through bolts.
Preferably, the rear cover is provided with a spigot, the spigot is connected with a valve block of the power unit, the driving shaft is sleeved with a shaft sleeve, and the front cover is provided with an oil seal at the outer side of the driving shaft.
Preferably, the brake pad assembly comprises a rotating speed sensor, the rotating speed sensor is fixedly arranged on the gear pump shell in the annular groove, and a probe of the rotating speed sensor is attached to the driving shaft.
Preferably, a guide rod is arranged in the annular groove on the gear pump housing, a mounting bar block is sleeved on the guide rod in a sliding manner, an annular brake seat is arranged on the driving shaft, a cylinder is arranged on the gear pump housing, and the telescopic end of the cylinder is fixedly connected with the mounting bar block.
Preferably, a supporting spring is arranged at the bottom of the guide rod, a brake sheet is arranged at the bottom of the mounting bar block, and the brake sheet and the annular brake seat are correspondingly arranged.
Compared with the prior art, the utility model has the beneficial effects that:
according to the utility model, the rotating speed sensor is arranged on one side of the driving shaft, the rotating speed sensor senses the rotating speed pressure of the gear pump, an external servo motor receives an electric signal and transmits the electric signal to the air cylinder, the telescopic end of the air cylinder pushes the mounting bar block to move, and the brake sheet assembly is driven to brake the driving shaft, so that the rotating speed of the driving shaft is reduced, the damage to components caused by the overlarge pressure in the gear pump during operation is avoided, and the service life of the gear pump is ensured.
Drawings
FIG. 1 is a schematic view of the structure of a back-in back-out gear pump of the present utility model.
Fig. 2 is a schematic structural view of the rear cover of the present utility model.
Fig. 3 is an enlarged schematic view of the structure of fig. 1 a according to the present utility model.
In the figure: 1. a gear pump housing; 11. a cylinder; 2. a front cover; 3. a rear cover; 31. an oil inlet; 32. an oil outlet; 33. a seal ring; 4. a drive shaft; 41. a shaft sleeve; 42. an annular groove; 43. an annular brake seat; 5. a drive gear; 6. a driven shaft; 7. a driven gear; 8. an oil seal; 9. a rotation speed sensor; 91. a guide rod; 92. mounting a bar block; 93. a support spring; 94. and (5) a brake piece.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1 to 3, the present utility model provides a technical solution: the utility model provides a back business turn over gear pump, including gear pump housing 1, protecgulum 2 and hou gai 3, the last rotation of gear pump housing 1 is connected with drive shaft 4, drive shaft 4 passes through the coupling joint with the motor, the inside that is located gear pump housing 1 on drive shaft 4 is fixed to be cup jointed driving gear 5, the last rotation of gear pump housing 1 is connected with driven shaft 6, driven gear 7 has been fixedly cup jointed on the impulse shaft 6, intermesh between driving gear 5 and the driven gear 7, oil inlet 31 and oil-out 32 have been seted up respectively on the hou gai 3, be provided with the tang on the hou gai 3, be connected between the valve piece of tang and power unit.
The shaft sleeve 41 is sleeved on the driving shaft 4, the sealing rings 33 are adhered between the front cover 2 and the gear pump shell 1 and between the rear cover 3 and the gear pump shell 1, the front cover 2 and the gear pump shell 1 and the rear cover 3 and the gear pump shell 1 are fixedly connected through bolts, the oil seal 8 is arranged on the outer side of the driving shaft 4 on the front cover 2, and the oil seal 8 and the sealing rings 33 play a sealing role, so that the possibility of leakage is reduced.
An annular groove 42 is formed in the gear pump housing 1 and located on the outer side of the driving shaft 4, a brake piece assembly which is convenient to control is arranged on the annular groove 42 in the gear pump housing 1, the brake piece assembly comprises a rotation speed sensor 9, the rotation speed sensor 9 is located on the annular groove 42 and fixedly installed on the gear pump housing 1, a probe of the rotation speed sensor 9 is attached to the driving shaft 4, the type of the rotation speed sensor 9 can be selected according to actual working conditions, and the rotation speed sensor 9 is electrically connected with an external driving mechanism.
The gear pump shell 1 is internally fixed with a guide rod 91 positioned in the annular groove 42, the guide rod 91 is sleeved with a mounting bar 92 in a sliding manner, the bottom of the guide rod 91 is sleeved with a supporting spring 93, the bottom of the mounting bar 92 is provided with a brake piece 94, the driving shaft 4 is provided with an annular brake seat 43, the brake piece 94 and the annular brake seat 43 are correspondingly arranged, and the mounting bar 92 is abutted under the action of the elasticity of the supporting spring 93, so that the brake piece 94 and the annular brake seat 43 are separated.
The cylinder 11 is installed on the gear pump housing 1, the model of the cylinder 11 can be selected according to actual working conditions, the telescopic end of the cylinder 11 is fixedly connected with the installation bar 92, the cylinder 11 is electrically connected with an external driving mechanism, namely, the rotation speed sensor 9 senses the rotation speed and the pressure of the gear pump, and an external servo motor receives an electric signal and transmits the electric signal to the cylinder 11.
During actual use, in the process of the rotation operation of the driving shaft 4, when the rotation speed sensor 9 senses the larger rotation speed pressure of the gear pump operation, the external servo motor receives an electric signal and transmits the electric signal to the air cylinder 11, the telescopic end of the air cylinder 11 pushes the mounting bar 92 to move, so that the brake sheet 94 is close to the annular brake seat 43 and contacts with the annular brake seat, larger friction force is generated, the brake sheet assembly is driven to brake the driving shaft 4, the rotation speed of the driving shaft 4 is reduced, the damage to parts caused by the overlarge internal pressure of the gear pump during operation is avoided, and the service life of the gear pump is ensured.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a back business turn over gear pump, includes gear pump casing (1), protecgulum (2) and hou gai (3), its characterized in that: be provided with drive shaft (4) on gear pump casing (1), be located the inside of gear pump casing (1) on drive shaft (4) and be provided with driving gear (5), be provided with driven shaft (6) on gear pump casing (1), be provided with driven gear (7) on driven shaft (6), intermesh between driving gear (5) and driven gear (7), be provided with oil inlet (31) and oil-out (32) on back lid (3) respectively, annular groove (42) have been seted up in being located the outside of drive shaft (4) in gear pump casing (1), be provided with the brake piece subassembly of being convenient for control on being located annular groove (42) in gear pump casing (1).
2. A backentry backexit gear pump as defined in claim 1, wherein: sealing rings (33) are arranged between the front cover (2) and the gear pump shell (1) and between the rear cover (3) and the gear pump shell (1), and the front cover (2) and the gear pump shell (1) and the rear cover (3) and the gear pump shell (1) are fixedly connected through bolts.
3. A backentry backexit gear pump as defined in claim 1, wherein: the rear cover (3) is provided with a spigot, the spigot is connected with a valve block of the power unit, the driving shaft (4) is sleeved with a shaft sleeve (41), and the outer side of the driving shaft (4) on the front cover (2) is provided with an oil seal (8).
4. A backentry backexit gear pump as defined in claim 1, wherein: the brake piece assembly comprises a rotating speed sensor (9), the rotating speed sensor (9) is positioned in the annular groove (42) and fixedly installed on the gear pump housing (1), and a probe of the rotating speed sensor (9) is attached to the driving shaft (4).
5. A backentry backexit gear pump as defined in claim 1, wherein: be provided with guide bar (91) on gear pump casing (1) in ring channel (42), sliding sleeve has installed strip piece (92) on guide bar (91), is provided with annular seat (43) of stopping on drive shaft (4), is provided with cylinder (11) on gear pump casing (1), fixed connection between the flexible end of cylinder (11) and installation strip piece (92).
6. The backin-backout gear pump of claim 5, wherein: the bottom of guide bar (91) is provided with supporting spring (93), and the bottom of installation strip piece (92) is provided with brake piece (94), corresponds between brake piece (94) and annular seat (43) of stopping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320230987.0U CN219754793U (en) | 2023-02-16 | 2023-02-16 | Gear pump with rear inlet and rear outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320230987.0U CN219754793U (en) | 2023-02-16 | 2023-02-16 | Gear pump with rear inlet and rear outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219754793U true CN219754793U (en) | 2023-09-26 |
Family
ID=88087540
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320230987.0U Active CN219754793U (en) | 2023-02-16 | 2023-02-16 | Gear pump with rear inlet and rear outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219754793U (en) |
-
2023
- 2023-02-16 CN CN202320230987.0U patent/CN219754793U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |