CN216342621U - Displacement pump using sliding bearing - Google Patents
Displacement pump using sliding bearing Download PDFInfo
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- CN216342621U CN216342621U CN202122591447.9U CN202122591447U CN216342621U CN 216342621 U CN216342621 U CN 216342621U CN 202122591447 U CN202122591447 U CN 202122591447U CN 216342621 U CN216342621 U CN 216342621U
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Abstract
The utility model discloses a displacement pump adopting a sliding bearing, which relates to the technical field of displacement pumps and comprises a bearing box, a pump body, a pump cover, a cooling cover, a runner nut, a mechanical seal, a pump shaft, a runner gasket, a bearing cover, a shaft sleeve, an oil slinger, a round nut, a gear, an elastic expansion ring, a compression ring, an end cover, a cooling gland, a positioning pin and an adjusting pad; the bearing comprises a sliding bearing and an angular contact bearing; the sliding bearing is matched with the shaft sleeve, and the shaft sleeve is positioned as a first clamping ring in the axial direction of the pump shaft; the angular contact bearing and the bearing box are fixed together through bolts by the bearing cover, and the angular contact bearing is positioned on the pump shaft as a second clamping ring. The utility model adopts a sliding bearing and an angular contact bearing; the rotating wheel and the pump cavity are reasonably matched, the rotating wheel rotates forwards and backwards without obstruction, the pumping efficiency is high, the self-sucking capacity is strong, and when the rotating wheel is used for pumping food media, the stable operation of the displacement pump is ensured; the gear oil cavity, the bearing and the shaft sleeve can be effectively lubricated, and the service life of the displacement pump is prolonged.
Description
Technical Field
The utility model relates to the technical field of displacement pumps, in particular to a displacement pump adopting a sliding bearing.
Background
The positive displacement pump is suitable for pumping high-viscosity and solid-containing large media, can also be suitable for pumping gas, liquid and solid mixed media, and pumps media such as syrup, milk, food slurry, crude oil, paper pulp and the like, is very widely applied, and is widely applied to the fields of food factories, petrochemical factories, mine paper mills, municipal sewage discharge and the like. The displacement pump pumps media by periodic rotation change of a plurality of fixed volume cavities formed by a rotating wheel and a pump body, and the rotating wheel has the capabilities of positive rotation and negative rotation, and is high in pumping efficiency and strong in self-absorption capacity. The existing displacement pump has the following main problems:
the dimensioning of the rotor and the pump chamber is therefore of great importance, depending on the characteristics of the displacement pump itself, in order to ensure a stable operation of the pump when used for pumping food medium.
The existing displacement pump cannot effectively lubricate a gear oil cavity, a bearing and a shaft sleeve, and a rotating wheel and a pump cavity are unreasonably matched. Therefore, important accessories such as bearings in the pump are easy to damage and have short service life.
SUMMERY OF THE UTILITY MODEL
The utility model provides a displacement pump using a sliding bearing. The utility model adopts a sliding bearing and an angular contact bearing; the rotating wheel and the pump cavity are reasonably matched, the rotating wheel rotates forwards and backwards without obstruction, the pumping efficiency is high, the self-sucking capacity is strong, and when the rotating wheel is used for pumping food media, the stable operation of the displacement pump is ensured; the gear oil cavity, the bearing and the shaft sleeve can be effectively lubricated, and the service life of the displacement pump is prolonged.
The technical scheme is as follows: a displacement pump employing a sliding bearing, comprising a displacement pump body, the displacement pump comprising: the pump comprises a bearing box 1, a pump body 2, a pump cover 4, a cooling cover 5, a runner nut 71, a mechanical seal 24, a pump shaft 17, a runner 75, a runner gasket 149, a bearing cover 137, a shaft sleeve 131, an oil slinger, a round nut 33, a gear 32, an elastic expansion ring 36, a compression ring 38, an end cover 43, a cooling gland 52, a positioning pin 20 and an adjusting pad 21;
the slinger includes a first slinger 142, a second slinger 145;
a bearing oil cavity 97 and a gear oil cavity 99 are arranged on the bearing box 1; the shaft sleeve 131 is arranged between bearings, the round nut 33 locks the bearings and the shaft sleeve 131 and then is fixed on the pump shaft 17, the pump shaft 17 is inserted into the bearing box 1 to enable the bearings to be matched with the bearing box 1 and then is fixed by the bearing cover 137, the gear 32 is sleeved on the pump shaft 17 to enable the elastic expansion ring 36 to be arranged in the gear 32 to be matched with the pump shaft 17 after passing through the pump shaft 17, the pressing ring 38 is sleeved on the pump shaft 17 and then is matched with the elastic expansion ring 36, a bolt penetrates through the pressing ring 38 and then is connected with the gear 32 to enable the elastic expansion ring 36 to axially move to fix the gear 32 on the pump shaft 17, the end cover 43 is fixedly arranged on the bearing box 1 after passing through the pump shaft, the cooling gland 52 is fixedly arranged on the bearing box 1, the mechanical seal 24 is sleeved on the pump shaft, the positioning pin is arranged on the bearing box 1, and the adjusting pad 21 is attached to the bearing box 1 after passing through the positioning pin 20;
the bearing is arranged on the pump shaft 17, and the flinger is arranged on the pump shaft; the pump body 2 is matched with the positioning pin 20, the adjusting pad 21 and the mechanical seal 24 through the rear part of the pump shaft, the mechanical seal is fixed on the pump body 2 through screws, the rotating wheel is sleeved on the pump shaft and then matched with the pump body 2, the adjusting pad is adjusted to ensure a gap A, B and C, then the pump body 2 and the bearing box 1 are locked and fixed through bolts, and the rotating wheel gasket is placed in the rotating wheel;
the rotating wheel nut 71 is inserted into the rotating wheel 75 to be matched with the pump shaft, then the rotating wheel is locked and fixed on the pump shaft and is tightly matched with the pump shaft, the pump cover 4 is fixedly installed on the pump body 2 through bolts to be matched with the end faces of the rotating wheel and the rotating wheel nut, the cooling cover 5 is fixedly installed on the pump cover 4 through bolts, and the exhaust plug 28 and the oil pointer 54 are installed on the bearing box 1 to form the positive displacement pump;
the bearings include a plain bearing 130 and an angular contact bearing 136;
the sliding bearing 130 is provided with the sleeve 131 matched with the sliding bearing;
the angular contact bearing 136 is provided with the bearing cover 137 matched with the angular contact bearing;
the sliding bearing 130 is matched with a shaft sleeve 131, and the shaft sleeve 131 is positioned as a first clamping ring 134 in the axial direction of the pump shaft;
the angular contact bearing 136 and the bearing housing 1 are fixed by a bearing cap 137 by bolt pressing, and the angular contact bearing 136 is positioned on the pump shaft as a second collar 135.
Further: angular contact bearing 136, bearing cap 137 and round nut combine to form oil return ring 133, oil return ring 133 is used to: the lubricating oil lubricated by the angular contact bearing 136 is returned to the gear oil chamber 99.
Further: slide bearing 130 is last to be provided with the overflow groove, the overflow groove is used for: when the lubricating oil flows through the flow grooves from the sliding bearing 130 and the sleeve 131, the sliding bearing 130 and the sleeve 131 are effectively lubricated, and the effective sizes of the clearance a, the clearance B, and the clearance C during the operation of the displacement pump can be further ensured.
Preferably: the overflow groove is a spiral groove 138.
Preferably: the overflow groove is a strip-shaped groove 139.
Preferably: the number of the spiral grooves 138 is 2-6.
Preferably: the number of the strip-shaped grooves 139 is 4-12.
Advantageous effects
1. The utility model adopts the sliding bearing and the angular contact bearing, the position of the rotating wheel of the displacement pump is matched with the position of the pump cavity, when the displacement pump pumps food media, the rotating wheel rotates forwards and backwards without obstruction, the pumping efficiency is high, the self-priming capability is strong, and when the displacement pump pumps food media, the stable operation of the displacement pump is ensured.
2. The lubricating oil lubricated by the angular contact bearing 136 can be returned to the gear oil chamber 99.
3. When the lubricating oil flows through the flow grooves from the sliding bearing 130 and the sleeve 131, the sliding bearing 130 and the sleeve 131 are effectively lubricated, and the effective sizes of the clearance a, the clearance B, and the clearance C during the operation of the displacement pump can be further ensured.
4. The utility model can effectively lubricate the gear oil cavity, the bearing and the shaft sleeve, and the matching of the rotating wheel and the pump cavity is reasonable, so that important accessories such as the bearing in the pump are not easy to damage, and the service life of the displacement pump is prolonged.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic diagram of a positive displacement pump according to an embodiment of the present invention;
FIG. 2 is a schematic view of a bearing housing according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a sliding bearing according to an embodiment of the present invention.
Wherein, 1, the bearing box; 2. a pump body; 4. a pump cover; 5. a cooling cover; 71. a runner nut; 24. mechanical sealing; 17. a pump shaft; 75. a rotating wheel; 149. a runner gasket; 137. a bearing cap; 131. a shaft sleeve; a round nut; 32. a gear; 36. an elastic expansion ring; 38. a compression ring; 43. an end cap; 52. cooling the gland; 20. positioning pins; 21. an adjustment pad; 142. a first slinger; 145. a second slinger; bearing oil pockets; 99. a gear oil cavity; 28. a vent plug; 54. oil marks; a plain bearing 130; 136. an angular contact bearing; 134. a first collar; 135. a second collar; 133. an oil return ring; a helical groove 138; 139. a strip-shaped groove.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those specifically described and will be readily apparent to those of ordinary skill in the art without departing from the spirit of the present invention, and therefore the present invention is not limited to the specific embodiments disclosed below.
Fig. 1-2 show a displacement pump using a sliding bearing, including a displacement pump body, the displacement pump including: the pump comprises a bearing box 1, a pump body 2, a pump cover 4, a cooling cover 5, a runner nut 71, a mechanical seal 24, a pump shaft 17, a runner 75, a runner gasket 149, a bearing cover 137, a shaft sleeve 131, an oil slinger, a round nut 33, a gear 32, an elastic expansion ring 36, a compression ring 38, an end cover 43, a cooling gland 52, a positioning pin 20 and an adjusting pad 21;
the slinger includes a first slinger 142, a second slinger 145;
a bearing oil cavity 97 and a gear oil cavity 99 are arranged on the bearing box 1; the shaft sleeve 131 is arranged between bearings, the round nut 33 locks the bearings and the shaft sleeve 131 and then is fixed on the pump shaft 17, the pump shaft 17 is inserted into the bearing box 1 to enable the bearings to be matched with the bearing box 1 and then is fixed by the bearing cover 137, the gear 32 is sleeved on the pump shaft 17 to enable the elastic expansion ring 36 to be arranged in the gear 32 to be matched with the pump shaft 17 after passing through the pump shaft 17, the pressing ring 38 is sleeved on the pump shaft 17 and then is matched with the elastic expansion ring 36, a bolt penetrates through the pressing ring 38 and then is connected with the gear 32 to enable the elastic expansion ring 36 to axially move to fix the gear 32 on the pump shaft 17, the end cover 43 is fixedly arranged on the bearing box 1 after passing through the pump shaft, the cooling gland 52 is fixedly arranged on the bearing box 1, the mechanical seal 24 is sleeved on the pump shaft, the positioning pin is arranged on the bearing box 1, and the adjusting pad 21 is attached to the bearing box 1 after passing through the positioning pin 20;
the bearing is arranged on the pump shaft 17, and the flinger is arranged on the pump shaft; the pump body 2 is matched with the positioning pin 20, the adjusting pad 21 and the mechanical seal 24 through the rear part of the pump shaft, the mechanical seal is fixed on the pump body 2 through screws, the rotating wheel is sleeved on the pump shaft and then matched with the pump body 2, the adjusting pad is adjusted to ensure a gap A, B and C, then the pump body 2 and the bearing box 1 are locked and fixed through bolts, and the rotating wheel gasket is placed in the rotating wheel;
the rotating wheel nut 71 is inserted into the rotating wheel 75 to be matched with the pump shaft, then the rotating wheel is locked and fixed on the pump shaft and is tightly matched with the pump shaft, the pump cover 4 is fixedly installed on the pump body 2 through bolts to be matched with the end faces of the rotating wheel and the rotating wheel nut, the cooling cover 5 is fixedly installed on the pump cover 4 through bolts, and the exhaust plug 28 and the oil pointer 54 are installed on the bearing box 1 to form the positive displacement pump;
the bearings include a plain bearing 130 and an angular contact bearing 136;
the sliding bearing 130 is provided with the sleeve 131 matched with the sliding bearing;
the angular contact bearing 136 is provided with the bearing cover 137 matched with the angular contact bearing;
the sliding bearing 130 is matched with a shaft sleeve 131, and the shaft sleeve 131 is positioned as a first clamping ring 134 in the axial direction of the pump shaft;
the angular contact bearing 136 and the bearing housing 1 are fixed by a bearing cap 137 by bolt pressing, and the angular contact bearing 136 is positioned on the pump shaft as a second collar 135.
The utility model adopts the sliding bearing and the angular contact bearing, the position of the rotating wheel of the displacement pump is matched with the position of the pump cavity, when the displacement pump pumps food media, the rotating wheel rotates forwards and backwards without obstruction, the pumping efficiency is high, the self-priming capability is strong, and when the displacement pump pumps food media, the stable operation of the displacement pump is ensured.
As shown in fig. 1 and 3, angular contact bearing 136, bearing cap 137 and round nut combine to form oil return ring 133, oil return ring 133 being used to: the lubricating oil lubricated by the angular contact bearing 136 is returned to the gear oil chamber 99.
As shown in fig. 1 and 3, the sliding bearing 130 is provided with a flow passage groove, and the flow passage groove is used for: when the lubricating oil flows through the flow grooves from the sliding bearing 130 and the sleeve 131, the sliding bearing 130 and the sleeve 131 are effectively lubricated, and the effective sizes of the clearance a, the clearance B, and the clearance C during the operation of the displacement pump can be further ensured.
As shown in fig. 3, the overflow groove is a spiral groove 138.
As shown in fig. 3, the overflow trough is a strip-shaped trough 139.
As shown in FIG. 3, the number of the spiral grooves 138 is 2 to 6.
As shown in fig. 3, the number of the strip-shaped grooves 139 is 4 to 12.
The utility model adopts the sliding bearing and the angular contact bearing to replace the prior conventional bearing; the rotating wheel and the pump cavity are reasonably matched, the rotating wheel rotates forwards and backwards without obstruction, the pumping efficiency is high, the self-sucking capacity is strong, and when the rotating wheel is used for pumping food media, the stable operation of the displacement pump is ensured; the gear oil cavity, the bearing and the shaft sleeve can be effectively lubricated, and the service life of the displacement pump is prolonged.
Claims (7)
1. The utility model provides an adopt displacement pump of slide bearing, includes the displacement pump body, its characterized in that: the positive displacement pump comprises: the pump comprises a bearing box (1), a pump body (2), a pump cover (4), a cooling cover (5), a rotating wheel nut (71), a mechanical seal (24), a pump shaft (17), a rotating wheel (75), a rotating wheel gasket (149), a bearing cover (137), a shaft sleeve (131), a flinger, a round nut (33), a gear (32), an elastic expansion ring (36), a compression ring (38), an end cover (43), a cooling gland (52), a positioning pin (20) and an adjusting pad (21);
the flinger includes a first flinger (142), a second flinger (145);
a bearing oil cavity (97) and a gear oil cavity (99) are arranged on the bearing box (1); the pump shaft structure comprises shaft sleeves (131), a round nut (33), a bearing, the shaft sleeves (131) and a pump shaft (17), the pump shaft (17) is arranged in a bearing box (1), the bearing is matched with the bearing box (1) and fixed by a bearing cover (137), a gear (32) is sleeved on the pump shaft (17), an elastic expansion ring (36) is matched with the pump shaft (17) by the pump shaft (17) and arranged in the gear (32), a pressing ring (38) is sleeved on the pump shaft (17) and matched with the elastic expansion ring (36), a bolt penetrates through the pressing ring (38) and is connected with the gear (32), the elastic expansion ring (36) and the gear (32) are fixed on the pump shaft (17), an end cover (43) is fixedly arranged on the bearing box (1) by the pump shaft, a cooling gland (52) is fixedly arranged on the bearing box (1), a mechanical seal (24) is sleeved on the pump shaft, a positioning pin is arranged on the bearing box (1), the adjusting pad (21) is attached to the bearing box (1) through the positioning pin (20);
the bearing is arranged on the pump shaft (17), and the flinger is arranged on the pump shaft; the pump body (2) is matched with the positioning pin (20), the adjusting pad (21) and the mechanical seal (24) through the pump shaft, the mechanical seal is fixed on the pump body (2) through screws, the rotating wheel is sleeved on the pump shaft and matched with the pump body (2) to form a gap A, B and a gap C, the pump body (2) and the bearing box (1) are locked and fixed through bolts, and the rotating wheel gasket is arranged in the rotating wheel;
the rotary wheel nut (71) is arranged in the rotary wheel (75) and matched with the pump shaft, the rotary wheel is locked and fixed on the pump shaft and is tightly matched with the pump shaft, the pump cover (4) is fixedly arranged on the pump body (2) through a bolt and is matched with the end face of the rotary wheel and the rotary wheel nut, the cooling cover (5) is fixedly arranged on the pump cover (4) through a bolt and is formed into the displacement pump after the exhaust plug (28) and the oil pointer (54) are arranged on the bearing box (1);
the bearings include a plain bearing (130) and an angular contact bearing (136);
the sliding bearing (130) is provided with the shaft sleeve (131) matched with the sliding bearing;
the angular contact bearing (136) is provided with the bearing cover (137) matched with the angular contact bearing;
the sliding bearing (130) is matched with a shaft sleeve (131), and the shaft sleeve (131) is positioned as a first clamping ring (134) in the axial direction of the pump shaft;
the angular contact bearing (136) and the bearing box (1) are pressed and fixed together through a bolt by a bearing cover (137), and the angular contact bearing (136) is positioned on the pump shaft as a second clamping ring (135).
2. A positive displacement pump using plain bearings as claimed in claim 1, wherein: the angular contact bearing (136), the bearing cap (137) and the round nut are combined to form an oil return ring (133), and the oil return ring (133) is used for: and lubricating oil lubricated by the angular contact bearing (136) flows back into the gear oil chamber (99).
3. A positive displacement pump using plain bearings as claimed in claim 1, wherein: be provided with the overflow groove on slide bearing (130), the overflow groove is used for: when the lubricating oil flows through the flow grooves from the sliding bearing (130) and the shaft sleeve (131), the sliding bearing (130) and the shaft sleeve (131) are effectively lubricated, and the effective sizes of the clearance A, the clearance B and the clearance C can be further ensured when the displacement pump operates.
4. A positive displacement pump using plain bearings as claimed in claim 3, wherein: the overflow groove is a spiral groove (138).
5. A positive displacement pump using plain bearings as claimed in claim 3, wherein: the overflow groove is a strip-shaped groove (139).
6. A positive displacement pump using plain bearings as claimed in claim 4, wherein: the number of the spiral grooves (138) is 2-6.
7. A positive displacement pump using plain bearings as claimed in claim 5, wherein: the number of the strip-shaped grooves (139) is 4-12.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122591447.9U CN216342621U (en) | 2021-10-27 | 2021-10-27 | Displacement pump using sliding bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122591447.9U CN216342621U (en) | 2021-10-27 | 2021-10-27 | Displacement pump using sliding bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216342621U true CN216342621U (en) | 2022-04-19 |
Family
ID=81131395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122591447.9U Active CN216342621U (en) | 2021-10-27 | 2021-10-27 | Displacement pump using sliding bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216342621U (en) |
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2021
- 2021-10-27 CN CN202122591447.9U patent/CN216342621U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Positive displacement pump with sliding bearing Effective date of registration: 20220428 Granted publication date: 20220419 Pledgee: Bank of China Limited Guangzhou Development Zone Branch Pledgor: GUANGZHOU LEPU MACHINERY Co.,Ltd. Registration number: Y2022980004985 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right |