CN213332064U - Gear pump shaft sleeve structure - Google Patents
Gear pump shaft sleeve structure Download PDFInfo
- Publication number
- CN213332064U CN213332064U CN202022028134.8U CN202022028134U CN213332064U CN 213332064 U CN213332064 U CN 213332064U CN 202022028134 U CN202022028134 U CN 202022028134U CN 213332064 U CN213332064 U CN 213332064U
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- groove
- sleeve body
- oil
- gear shaft
- axle sleeve
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Abstract
The utility model discloses a gear pump shaft sleeve structure, including the axle sleeve body, the surface of axle sleeve body is provided with gear shaft supported hole, the surface of axle sleeve body evenly is provided with the low-pressure groove, the one end of low-pressure groove is connected with the ring channel, the ring channel sets up the upper end edge at gear shaft supported hole, the inner wall symmetry of gear shaft supported hole is provided with the lubrication groove. When low-pressure oil in the oil tank rises to high-pressure oil through the lubricating groove, the low-pressure groove, the annular groove, the first circulating hole, the oil groove and the second circulating hole, the balance of the shaft sleeve body and the rotor is kept through oil circulation, and the abrasion of the shaft sleeve body is reduced; through the setting of strengthening rib and enhancement layer, the intensity and the coefficient of wear-resisting of the axle sleeve body that improve can improve the life of axle sleeve body.
Description
Technical Field
The utility model relates to a gear shaft technical field specifically is a gear pump axle sleeve structure.
Background
Gear pumps are rotary pumps that deliver or pressurize fluid by virtue of the change in working volume and movement created between a pump cylinder and a meshing gear. Two closed holes are formed by two gears, a pump body and front and rear covers, when the gears rotate, the volume between the holes on the gear disengagement side is increased from small to large to form a real hole, liquid is sucked, and the volume between the holes on the gear engagement side is decreased from large to small to squeeze the liquid into a pipeline. The suction chamber and the discharge chamber are separated by a meshing line of two gears. The pressure at the discharge of the gear pump is entirely dependent on the amount of resistance at the pump outlet.
Because the pressure of oil in the oil tank entering the cavity is very low, and the pressure of the oil in the oil tank leaving the cavity is very high, the stress of the rotor is unbalanced, the phenomenon that the shaft sleeve close to the entering cavity is seriously abraded is caused, and meanwhile, the gear seriously abrades the chamber sweeping of the pump body.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gear pump axle sleeve structure to solve the serious problem of axle sleeve wearing and tearing.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a gear pump axle sleeve structure, includes the axle sleeve body, the surface of axle sleeve body is provided with gear shaft support hole, the surface of axle sleeve body evenly is provided with the low-pressure groove, the one end in low-pressure groove is connected with the ring channel.
Preferably, the axial of axle sleeve body is provided with the oil groove, and the UNICOM is provided with the second and circulates the hole between oil groove and the lubrication groove, and the UNICOM is provided with first circulation hole between oil groove and the low pressure groove, and oil gets into the ring channel through the low pressure groove in, then gets into gear shaft support hole inboard through the lubrication groove, then with the gear shaft contact to lubricate it reduce with the friction between the axle sleeve body, then oil can get into the oil groove inboard through the second circulation hole, again by the oil groove from first circulation hole discharge form a circulation.
Preferably, the inner wall of the gear shaft supporting hole is provided with a reinforcing layer, and the wear resistance coefficient of the gear shaft supporting hole is improved through the reinforcing layer.
Preferably, the lateral wall of oil groove is provided with the strengthening rib, and the strengthening rib is ring structure, improves the bulk strength of axle sleeve body through the strengthening rib.
Preferably, the annular groove is provided at an upper end edge of the gear shaft support hole.
Preferably, the inner wall of the gear shaft supporting hole is symmetrically provided with lubricating grooves, and the lubricating grooves can lubricate the gear shaft when the gear shaft rotates so as to reduce friction between the gear shaft and the gear shaft supporting hole.
Compared with the prior art, the beneficial effects of the utility model are that: when low-pressure oil in the oil tank rises to high-pressure oil through the lubricating groove, the low-pressure groove, the annular groove, the first circulating hole, the oil groove and the second circulating hole, the balance of the shaft sleeve body and the rotor is kept through oil circulation, and the abrasion of the shaft sleeve body is reduced; through the setting of strengthening rib and enhancement layer, the intensity and the coefficient of wear-resisting of the axle sleeve body that improve can improve the life of axle sleeve body.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a side sectional view of the overall structure of the present invention.
In the figure: 1 axle sleeve body, 2 gear shaft support holes, 3 enhancement layers, 4 lubrication grooves, 5 low-pressure grooves, 6 ring channels, 7 first circulation holes, 8 oil grooves, 9 strengthening ribs, 10 second circulation holes.
Detailed Description
Referring to fig. 1, a gear pump bushing structure includes a bushing body 1, a gear shaft support hole 2 is formed in a surface of the bushing body 1, low pressure grooves 5 are uniformly formed in the surface of the bushing body 1, one end of each low pressure groove 5 is connected with an annular groove 6, the annular groove 6 is formed in an upper end edge of the gear shaft support hole 2, lubrication grooves 4 are symmetrically formed in an inner wall of the gear shaft support hole 2, and the lubrication grooves 4 can lubricate a gear shaft when the gear shaft rotates to reduce friction between the gear shaft and the gear shaft support hole 2.
Referring to fig. 1 and 2, an oil groove 8 is axially formed in the shaft sleeve body 1, a second circulation hole 10 is communicated between the oil groove 8 and the lubrication groove 4, a first circulation hole 7 is communicated between the oil groove 8 and the low pressure groove 5, oil enters the annular groove 6 through the low pressure groove 5, then enters the inner side of the gear shaft support hole 2 through the lubrication groove 4, then contacts with the gear shaft to lubricate the gear shaft and reduce friction between the gear shaft and the shaft sleeve body 1, then the oil enters the inner side of the oil groove 8 through the second circulation hole 10, and then is discharged from the first circulation hole 7 through the oil groove 8 to form a circulation.
Referring to fig. 1, the inner wall of the gear shaft support hole 2 is provided with a reinforcing layer 3, and the wear resistance coefficient of the gear shaft support hole 2 is improved by the reinforcing layer 3.
Referring to fig. 2, the side wall of the oil groove 8 is provided with a reinforcing rib 9, the reinforcing rib 9 is of an annular structure, and the reinforcing rib 9 improves the overall strength of the shaft sleeve body 1.
The utility model discloses when concrete implementation: when the gear pump works, oil enters the annular groove 6 through the low-pressure groove 5, because the inner side of the edge gear shaft supporting hole 2 of the annular groove 6 is provided with the lubricating groove 4, then the oil enters the inner side of the gear shaft supporting hole 2 through the lubricating groove 4 and contacts with a gear shaft, the gear shaft is lubricated to reduce friction between the gear shaft and the shaft sleeve body 1 when rotating, because the oil groove 8 and the lubricating groove 4 are communicated with each other to form a second circulation hole 10, the oil groove 8 and the low-pressure groove 5 are communicated with each other to form a first circulation hole 7, then the oil enters the inner side of the oil groove 8 through the second circulation hole 10 and is discharged from the first circulation hole 7 through the oil groove 8 to form a circulation, and therefore when the low-pressure oil in the oil tank rises to high-pressure oil, the shaft sleeve body 1 and a rotor are kept balanced through oil circulation, and; and the inboard of gear shaft support hole 2 is provided with enhancement layer 3, the inboard of oil groove 8 is provided with strengthening rib 9, and through the setting of strengthening rib 9 and enhancement layer 3, the intensity and the coefficient of wear-resisting of axle sleeve body 1 that can improve to this life who improves axle sleeve body 1.
Claims (6)
1. The utility model provides a gear pump axle sleeve structure, includes axle sleeve body (1), its characterized in that: the gear shaft supporting structure is characterized in that a gear shaft supporting hole (2) is formed in the surface of the shaft sleeve body (1), low-pressure grooves (5) are uniformly formed in the surface of the shaft sleeve body (1), and one ends of the low-pressure grooves (5) are connected with annular grooves (6).
2. The gear pump bushing structure of claim 1, wherein: the axial of axle sleeve body (1) is provided with oil groove (8), and the UNICOM is provided with second circulation hole (10) between oil groove (8) and lubrication groove (4), and the UNICOM is provided with first circulation hole (7) between oil groove (8) and low-pressure tank (5).
3. The gear pump bushing structure of claim 1, wherein: and a reinforcing layer (3) is arranged on the inner wall of the gear shaft supporting hole (2).
4. The gear pump shaft sleeve structure of claim 2, wherein: and reinforcing ribs (9) are arranged on the side wall of the oil groove (8).
5. The gear pump bushing structure of claim 1, wherein: the annular groove (6) is arranged at the edge of the upper end of the gear shaft support hole (2).
6. The gear pump bushing structure of claim 1, wherein: and lubricating grooves (4) are symmetrically arranged on the inner wall of the gear shaft supporting hole (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022028134.8U CN213332064U (en) | 2020-09-16 | 2020-09-16 | Gear pump shaft sleeve structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022028134.8U CN213332064U (en) | 2020-09-16 | 2020-09-16 | Gear pump shaft sleeve structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213332064U true CN213332064U (en) | 2021-06-01 |
Family
ID=76063300
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022028134.8U Active CN213332064U (en) | 2020-09-16 | 2020-09-16 | Gear pump shaft sleeve structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213332064U (en) |
-
2020
- 2020-09-16 CN CN202022028134.8U patent/CN213332064U/en active Active
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