CN212583936U - Chemical fiber spinning gear metering pump - Google Patents
Chemical fiber spinning gear metering pump Download PDFInfo
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- CN212583936U CN212583936U CN202021122718.5U CN202021122718U CN212583936U CN 212583936 U CN212583936 U CN 212583936U CN 202021122718 U CN202021122718 U CN 202021122718U CN 212583936 U CN212583936 U CN 212583936U
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- metering pump
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Abstract
The utility model discloses a chemical fiber spinning gear metering pump, which comprises a bottom plate, a middle plate and a top plate, wherein the bottom plate, the middle plate and the top plate form an airtight cavity, a driving gear and a driven gear which are mutually meshed are arranged in the cavity, and a pair of meshed gears divides the airtight volume into a left airtight working cavity and a right airtight working cavity; the driving shaft is connected with the driving gear through a pin key, the driven shaft is in clearance fit with the driven gear, and the driving shaft passes through the top plate and then is axially sealed through the sealing seat, the packing sealing element and the adjusting gland; the driving gear, the driven gear, the driving shaft and the driven shaft are coated with a diamond-like coating, and a wear-resistant ring is additionally arranged at the matching position of the driving shaft and the top plate. The utility model has the characteristics of simple structure, measurement accuracy height, corrosion resistance are strong, the wearing and tearing volume is little, stability is good, longe-lived etc.
Description
Technical Field
The utility model relates to a measuring pump technique, concretely relates to chemical fiber spinning gear metering pump.
Background
The gear metering pump has the advantages of simple structure, small volume, reliable work and convenient maintenance, and can accurately meter and continuously convey the high polymer melt or solution. The spinning metering pump is widely applied to the industries of chemical fiber spinning, petrifaction, chemical industry, electric power, papermaking, pharmacy, environmental protection, water treatment and the like, wherein the spinning metering pump is an important part in the chemical fiber industry, and the high precision and corrosion resistance are key performances of the spinning metering pump.
The chemical fiber spinning gear metering pump continuously operates for a long time in certain temperature, humidity, viscosity, torque, pressure and corrosion environments, and under the working condition, the transmission structure part of the existing spinning metering pump is very easy to have serious abrasion, so that serious leakage is caused, the metering precision is greatly reduced, and the chemical fiber spinning gear metering pump cannot be used finally.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a chemical fibre spinning gear metering pump.
Realize the utility model discloses the technical scheme of purpose does: a chemical fiber spinning gear metering pump comprises a bottom plate, a middle plate and a top plate, wherein the bottom plate, the middle plate and the top plate form a closed cavity, a driving gear and a driven gear which are mutually meshed are arranged in the cavity, and a pair of meshed gears divides the closed volume into a left closed working cavity and a right closed working cavity; the driving shaft is connected with the driving gear through a pin key, the driven shaft is in clearance fit with the driven gear, and the driving shaft passes through the top plate and then is axially sealed through the sealing seat, the packing sealing element and the adjusting gland; the driving gear, the driven gear, the driving shaft and the driven shaft are coated with a diamond-like coating, and a wear-resistant ring is additionally arranged at the matching position of the driving shaft and the top plate.
Furthermore, the bottom plate, the middle plate, the top plate, the driving gear, the driven gear, the driving shaft and the driven shaft are all made of martensitic stainless steel materials.
Furthermore, the driving gear and the driven gear are a pair of externally meshed involute straight toothed cylindrical gears with identical geometric parameters.
Further, the bottom plate, the middle plate and the top plate are sequentially attached and are fixedly connected through screws.
Furthermore, the driving shaft sequentially penetrates through the adjusting gland, the sealing seat, the top plate, the driving gear and the bottom plate, and the driving shaft is in clearance fit with the bottom plate and the top plate respectively; the driven shaft penetrates through the top plate, the driven gear and the bottom plate in sequence, the driven shaft is in clearance fit with the bottom plate and the driven gear respectively, and the driven shaft is in interference connection with the top plate.
Further, the wear-resistant ring is made of a nylon material.
Furthermore, the seal receptacle is connected with the top plate through a screw, and a packing seal member is arranged in the seal receptacle.
Further, the adjusting gland is connected with the sealing seat through a screw.
Compared with the prior art, the utility model discloses a show the advantage and do: the utility model has simple structure, convenient installation and good sealing performance; the designed matching of the adjusting gland and the packing sealing element reduces the leakage of the internal liquid and simplifies the adjustment of the axial clearance of the metering pump; through increasing wear-resisting ring, increase the surface coating film of transmission structure, the wearing and tearing of the structure spare part that has significantly reduced further has reduced the frequency that liquid reveals the appearance, has finally increased the measurement accuracy and the life of measuring pump.
Drawings
Figure 1 is the utility model discloses a measuring pump structure two dimension cross-sectional view.
Fig. 2 is the utility model discloses wear ring structure two dimension cross-sectional view of measuring pump.
Reference numbers in the figures: the novel anti-wear sealing device comprises a base plate 1, a middle plate 2, a top plate 3, a driving gear 4, a driven gear 5, a driving shaft 6, a driven shaft 7, a pin key 8, a packing sealing element 9, a sealing seat 10, an adjusting gland 11 and a wear-resisting ring 12.
Detailed Description
As shown in fig. 1, a chemical fiber spinning gear metering pump includes a bottom plate 1, a middle plate 2, a top plate 3, a driving gear 4, a driven gear 5, a driving shaft 6, a driven shaft 7, a pin key 8, a packing seal 9, a seal seat 10, an adjusting gland 11, and a wear-resistant ring 12. The driving gear 4 and the driven gear 5 are a pair of externally meshed involute straight toothed spur gears with completely same geometric parameters; a driving shaft 6 is driven by a motor and a speed reducer, the driving shaft 6 and a driving gear 4 are driven by a pin key 8, and a driven shaft 7 and a driven gear 5 are in clearance fit, so that the driving gear 4 and the driven gear 5 are driven; bottom plate 1, medium plate 2 and roof 3 laminate in proper order to through screw fastening connection, place intermeshing's driving gear 4 and driven gear 5 in the airtight cavity that the three-plate constitutes. The meshed gears divide the sealed volume into a left sealed working cavity and a right sealed working cavity, the gears rotate continuously, and oil in the two sealed cavities is transferred continuously, so that oil is absorbed and pressed continuously.
The driving shaft 6 sequentially penetrates through the adjusting gland 11, the sealing seat 10, the top plate 3, the driving gear 4 and the bottom plate 1, the driving shaft 6 is in clearance fit with the bottom plate 1 and the top plate 3 respectively, and the driving shaft 6 is connected with the driving gear 4 through a pin key; the driven shaft 7 sequentially penetrates through the top plate 3, the driven gear 5 and the bottom plate 1, the driven shaft 7 is in clearance fit with the bottom plate 1 and the driven gear 5 respectively, and the driven shaft 7 is in interference connection with the top plate 3.
As shown in fig. 2, the wear-resistant ring 12 is made of nylon material and is arranged between the driving shaft and the top plate to reduce the abrasion of the rotation of the driving shaft to the top plate; the outer surfaces of the driving gear 4, the driven gear 5, the driving shaft 6 and the driven shaft 7 are coated with a layer of diamond-like carbon film, so that the abrasion of a transmission structure is reduced.
The bottom plate 1, the middle plate 2 and the top plate 3 are connected through screws in a fastening mode, and two cylindrical pins are arranged in the bottom plate for positioning and assembling. The sealing seat 10 is connected with the top plate 3 through a screw, and a packing sealing element is arranged in the sealing seat; the adjusting gland is connected with the sealing seat through a screw, the adjusting gland applies pressure to the packing sealing element by screwing the screw, the packing sealing element extrudes the top plate, the higher the pressure is, the tighter the pressure is, the smaller the axial gap is, and the leakage can be reduced; if the pump works in a low-pressure state, the screw can be unscrewed, the pressing force is reduced, and leakage cannot be increased.
The bottom plate 1, the medium plate 2, the roof 3, the driving gear 4, the driven gear 5, the driving shaft 6, the driven shaft 7 all adopt martensite stainless steel material, improve the corrosion resistance of the pump body.
The utility model discloses simple structure, simple to operate, sealing performance is good. The designed matching of the adjusting gland and the packing sealing element reduces the leakage of the internal liquid and simplifies the adjustment of the axial clearance of the metering pump. Through increasing wear-resisting ring, increase the surface coating film of transmission structure, the wearing and tearing of the structure spare part that has significantly reduced further has reduced the frequency that liquid reveals the appearance, has finally increased the measurement accuracy and the life of measuring pump.
Claims (8)
1. A chemical fiber spinning gear metering pump comprises a bottom plate (1), a middle plate (2) and a top plate (3), and is characterized in that the bottom plate (1), the middle plate (2) and the top plate (3) form a closed cavity, a driving gear (4) and a driven gear (5) which are meshed with each other are arranged in the cavity, and a pair of meshed gears divides the closed volume into a left closed working cavity and a right closed working cavity; the driving shaft (6) is connected with the driving gear (4) through a pin key (8), the driven shaft (7) is in clearance fit with the driven gear (5), and the driving shaft (6) passes through the top plate (3) and then is axially sealed by a sealing seat (10), a packing sealing element (9) and an adjusting gland (11); the driving gear (4), the driven gear (5), the driving shaft (6) and the driven shaft (7) are coated with a diamond-like coating, and a wear-resistant ring (12) is additionally arranged at the matching position of the driving shaft (6) and the top plate (3).
2. A chemical fiber spinning gear metering pump according to claim 1, characterized in that the bottom plate (1), the middle plate (2), the top plate (3), the driving gear (4), the driven gear (5), the driving shaft (6) and the driven shaft (7) are all made of martensitic stainless steel material.
3. A chemical fiber spinning gear metering pump according to claim 1, characterized in that the driving gear (4) and the driven gear (5) are a pair of externally meshed involute spur gears with identical geometric parameters.
4. A chemical fiber spinning gear metering pump according to claim 1, characterized in that the bottom plate (1), the middle plate (2) and the top plate (3) are sequentially attached and fastened by screws.
5. A chemical fiber spinning gear metering pump according to claim 1, characterized in that the driving shaft (6) passes through the adjusting gland (11), the sealing seat (10), the top plate (3), the driving gear (4) and the bottom plate (1) in sequence, and the driving shaft (6) is in clearance fit with the bottom plate (1) and the top plate (3) respectively; the driven shaft (7) sequentially penetrates through the top plate (3), the driven gear (5) and the bottom plate (1), the driven shaft (7) is in clearance fit with the bottom plate (1) and the driven gear (5) respectively, and the driven shaft (7) is in interference connection with the top plate (3).
6. The chemical fiber spinning gear metering pump according to claim 1, characterized in that the wear-resistant ring (12) is made of nylon material.
7. A chemical fiber spinning gear metering pump according to claim 1, characterized in that the sealing seat (10) is connected with the top plate (3) by screws, and a packing seal is arranged in the sealing seat (10).
8. Chemical fiber spinning gear metering pump according to claim 1 or 7, characterized in that the adjusting gland (11) is connected with the sealing seat (10) by screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021122718.5U CN212583936U (en) | 2020-06-17 | 2020-06-17 | Chemical fiber spinning gear metering pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021122718.5U CN212583936U (en) | 2020-06-17 | 2020-06-17 | Chemical fiber spinning gear metering pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212583936U true CN212583936U (en) | 2021-02-23 |
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ID=74650864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021122718.5U Active CN212583936U (en) | 2020-06-17 | 2020-06-17 | Chemical fiber spinning gear metering pump |
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| Country | Link |
|---|---|
| CN (1) | CN212583936U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111155A (en) * | 2022-08-30 | 2022-09-27 | 成都东日瑞姆机械有限公司 | A gear pump for new forms of energy battery module injecting glue |
-
2020
- 2020-06-17 CN CN202021122718.5U patent/CN212583936U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115111155A (en) * | 2022-08-30 | 2022-09-27 | 成都东日瑞姆机械有限公司 | A gear pump for new forms of energy battery module injecting glue |
| CN115111155B (en) * | 2022-08-30 | 2022-11-11 | 成都东日瑞姆机械有限公司 | A gear pump for new forms of energy battery module injecting glue |
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