CN212959130U - Gear drive type pitot tube pump - Google Patents
Gear drive type pitot tube pump Download PDFInfo
- Publication number
- CN212959130U CN212959130U CN201920314003.0U CN201920314003U CN212959130U CN 212959130 U CN212959130 U CN 212959130U CN 201920314003 U CN201920314003 U CN 201920314003U CN 212959130 U CN212959130 U CN 212959130U
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- gear
- driven
- pitot tube
- shaft
- driven shaft
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Abstract
The utility model relates to a gear transmission type pitot tube pump, which comprises a bearing box with openings at two ends, a driven shaft in transmission connection with the bearing box and an impeller cover, wherein the impeller cover is provided with a channel for fluid to enter; the tail end of the driven shaft is fixedly connected with a rotating shell, the rotating shell and an impeller cover form an impeller with a rotor cavity, a pitot tube coaxial with the driven shaft is fixedly connected to the bearing box, one end of the pitot tube is positioned in the driven shaft, and the other end of the pitot tube is positioned in the rotor cavity; the bearing box is connected with a driving shaft parallel to the driven shaft in a rotating mode, the driving shaft is sleeved with a driving gear, the driven shaft is sleeved with a driven gear meshed with the driving gear, and the diameter of the driving gear is larger than that of the driven gear. The driving gear is meshed with the driven gear, so that the pitot tube pump is provided with the speed increasing mechanism, and the application range of the pitot tube pump is wider; in addition, the driving shaft is parallel to the driven shaft, so that the occupied area of the pitot tube pump is reduced, and the structure is simple.
Description
Technical Field
The utility model relates to a fluid pump especially relates to a gear drive formula pitot tube pump.
Background
The pitot tube pump comprises main parts such as a pump body, a flow guide assembly, a mechanical seal assembly, a pitot tube, a shaft, an impeller, a rotating shell, a bearing box body and the like, wherein the rotating part consisting of the shaft, the rotating shell and the impeller is connected with the bearing box through a rolling bearing, and the bearing box is fixed on a base or a foundation. During operation, the shaft drives the rotating shell to rotate, the pitot tube is still in the rotating shell cavity, the rotating shell rotates to drive liquid in the rotating shell cavity to rotate, and the liquid enters the pitot tube and flows out of the pump body through the liquid outlet channel of the flow guide assembly.
However, when the required rotation speed of the pitot tube pump is higher than that of the common frequency motor, a gear box needs to be connected outside the pitot tube pump, so that the occupied area of the pitot tube pump is increased, and the installation position of the pitot tube pump is greatly limited.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gear drive formula pitot tube pump combines gear box and pitot tube pump together, has simple structure, advantage that area is little.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a gear transmission type pitot tube pump comprises a bearing box with openings at two ends, a driven shaft and an impeller cover, wherein the driven shaft is connected in the bearing box in a transmission way, and the impeller cover is provided with a channel for fluid to enter; the tail end of the driven shaft is fixedly connected with a rotating shell, the rotating shell and the impeller cover form an impeller with a rotor cavity, a pitot tube coaxial with the driven shaft is fixedly connected to the bearing box, one end of the pitot tube is located in the driven shaft, and the other end of the pitot tube is located in the rotor cavity; the bearing box is rotatably connected with a driving shaft parallel to the driven shaft, the driving shaft is sleeved with a driving gear, the driven shaft is sleeved with a driven gear meshed with the driving gear, and the diameter of the driving gear is larger than that of the driven gear.
By adopting the technical scheme, the driving gear is meshed with the driven gear, so that the pitot tube pump is provided with the speed increasing mechanism, and the rotating speed of the pitot tube pump is increased without an external gear box or a frequency converter, so that the application range of the pitot tube pump is wider; in addition, the driving shaft is parallel to the driven shaft, namely the driving shaft is assembled to the gear box and located on the same vertical surface of the driven shaft, so that the occupied area of the pitot tube pump is reduced, and the structure is simple.
The utility model discloses further set up to: still including being used for respectively drive gear can dismantle connect in on the drive shaft with driven gear can dismantle in coupling assembling on the driven shaft.
By adopting the technical scheme, the driving gear and the driven gear can be detached through the connecting assembly, and when the driving gear or the driven gear is damaged, the driving gear or the driven gear is easier to replace; in addition, the driving gear and the driven gear set with different diameter ratios are replaced, so that the accelerating ratio of the pitot tube pump can be changed, and the application range of the pitot tube pump is wider.
The utility model discloses further set up to: coupling assembling including seting up respectively in the drive shaft with spread groove on the driven shaft, seting up respectively drive gear on with last sliding groove and the sliding connection in of driven gear slide in the inslot and with spread groove grafting complex connecting rod, drive gear with driven gear is last all seted up with the screw hole that sliding groove communicates mutually, screw hole female connection have with the bolt that the terminal surface of connecting rod offseted, the bolt with the butt face of connecting rod is the inclined plane towards the spread groove.
By adopting the technical scheme, the end face of the bolt abuts against the connecting rod to be inserted into the connecting groove by screwing in the bolt, and then the driving gear is fixedly connected to the driving shaft or the driven gear is fixedly connected to the driven shaft; when drive gear or driven gear are dismantled to needs, make its terminal surface be located the screwed hole through screwing out the bolt, rotate drive shaft or driven shaft and make the bolt be located its below, the connecting rod will be under the effect of self gravity with the spread groove phase separation, can accomplish the work of dismantling drive gear or driven gear.
The utility model discloses further set up to: the end of the bolt is provided with an adjusting hole.
By adopting the technical scheme, the bolt can be more easily rotated by inserting the tool into the adjusting hole.
The utility model discloses further set up to: a first bearing is arranged between the driving shaft and the bearing box.
By adopting the technical scheme, the energy consumption is smaller when the external motor drives the driving shaft to rotate through the first bearing.
The utility model discloses further set up to: a second bearing is arranged between the driven shaft and the bearing box, and a third bearing is arranged between the impeller cover and the bearing box.
By adopting the technical scheme, the pitot tube pump has lower energy consumption when delivering fluid through the second bearing and the third bearing.
The utility model discloses further set up to: a first mechanical sealing assembly is arranged between the driven shaft and the bearing box and is positioned outside the second bearing; and a second mechanical sealing assembly is arranged between the impeller cover and the bearing box and is positioned on the outer side of the third bearing.
Adopt above-mentioned technical scheme, will increase the sealed effect between bearing box and rotatory shell, the driven shaft through first mechanical seal subassembly and second mechanical seal subassembly to it is excessive to reduce the fluid that leads to the fact when pitot tube pump carries fluid.
To sum up, the utility model discloses a beneficial technological effect does: the driving gear is meshed with the driven gear, so that the pitot tube pump is provided with the speed increasing mechanism, and the rotating speed of the pitot tube pump is increased without an external gear box or a frequency converter, so that the application range of the pitot tube pump is wider; in addition, the driving shaft is parallel to the driven shaft, namely the driving shaft is assembled to the gear box and located on the same vertical surface of the driven shaft, so that the occupied area of the pitot tube pump is reduced, and the structure is simple. Through the drive gear and the driven gear set of changing different diameter ratios, can change the proportion of pitot tube pump acceleration rate, and then make pitot tube pump's application scope wider.
Drawings
FIG. 1 is a cross-sectional view of the structure of an embodiment of the present invention;
FIG. 2 is a partial schematic view of a driven shaft and a driving shaft according to an embodiment of the present invention;
fig. 3 is an enlarged view of a portion a in fig. 2.
In the figure, 1, a bearing housing; 2. a driven shaft; 3. an impeller cover; 4. rotating the housing; 5. a pitot tube; 6. a drive shaft; 7. a drive gear; 8. a driven gear; 91. connecting grooves; 92. a sliding groove; 93. a connecting rod; 94. a threaded hole; 95. a bolt; 96. an adjustment hole; 10. a first bearing; 11. a second bearing; 12. a third bearing; 13. a first mechanical seal assembly; 14. a second mechanical seal assembly.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
A gear transmission type pitot tube pump is shown in figures 1 and 2 and comprises a bearing box 1 with two open ends, a driven shaft 2 connected in the bearing box 1 in a transmission way and an impeller cover 3, wherein the impeller cover 3 is provided with a channel for fluid to enter; the tail end of the driven shaft 2 is fixedly connected with a rotating shell 4, the rotating shell 4 and an impeller cover 3 form an impeller with a rotor cavity, a pitot tube 5 which is coaxial with the driven shaft 2 is fixedly connected onto the bearing box 1, one end of the pitot tube 5 is located in the driven shaft 2, and the other end of the pitot tube is located in the rotor cavity. When the pitot tube pump is used for conveying fluid, the fluid enters the rotor cavity from the channel of the impeller cover 3 and is conveyed out from the outlet of the pitot tube 5.
The bearing box 1 is rotatably connected with a driving shaft 6 parallel to the driven shaft 2, the driving shaft 6 is sleeved with a driving gear 7, the driven shaft 2 is sleeved with a driven gear 8 meshed with the driving gear 7, and the diameter of the driving gear 7 is larger than that of the driven gear 8. The driving gear 7 is meshed with the driven gear 8, so that the pitot tube pump is provided with an accelerating mechanism, and the rotating speed of the pitot tube pump is increased without an external gear box or a frequency converter, so that the application range of the pitot tube pump is wider; in addition, the driving shaft 6 is parallel to the driven shaft 2, namely the driving shaft 6 is assembled to the gear box on the same vertical surface of the driven shaft 2, so that the occupied area of the pitot tube pump is reduced, and the structure is simple.
A first bearing 10 is arranged between the driving shaft 6 and the bearing box 1, and the energy consumption is lower when the external motor drives the driving shaft 6 to rotate through the first bearing 10; a second bearing 11 is arranged between the driven shaft 2 and the bearing box 1, a third bearing 12 is arranged between the impeller cover 3 and the bearing box 1, and the pitot tube pump has lower energy consumption when delivering fluid through the second bearing 11 and the third bearing 12. A first mechanical sealing assembly 13 is arranged between the driven shaft 2 and the bearing box 1, and the first mechanical sealing assembly 13 is positioned at the outer side of the second bearing 11; a second mechanical seal assembly 14 is mounted between the impeller cover 3 and the bearing housing 1, the second mechanical seal assembly 14 being located outside the third bearing 12. The sealing effect between the bearing box 1 and the rotating shell 4 and the driven shaft 2 is increased through the first mechanical sealing assembly 13 and the second mechanical sealing assembly 14, so that the overflow of fluid caused when the pitot tube pump delivers the fluid is reduced. The first bearing 10, the second bearing 11 and the third bearing 12 are the same, the first mechanical seal assembly 13 and the second mechanical seal assembly 14 are the same, and the mechanical seal assembly refers to a device for preventing fluid leakage, which is formed by keeping fit and relative sliding of at least one pair of end surfaces perpendicular to a rotation axis under the action of fluid pressure and elastic force (or magnetic force) of a compensation mechanism and under the cooperation of auxiliary seal.
As shown in fig. 2 and 3, the device further comprises connecting assemblies for detachably connecting the driving gear 7 to the driving shaft 6 and the driven gear 8 to the driven shaft 2 respectively; the driving gear 7 and the driven gear 8 can be detached through the connecting assembly, and when the driving gear 7 or the driven gear 8 is damaged, the driving gear 7 or the driven gear 8 can be replaced more easily; in addition, by replacing the driving gear 7 and the driven gear 8 with different diameter ratios, the acceleration ratio of the pitot tube pump can be changed, and the application range of the pitot tube pump is wider.
Coupling assembling is including seting up respectively on drive shaft 6 and the connecting groove 91 on driven shaft 2, seting up respectively on drive gear 7 and on driven gear 8 the groove 92 that slides and slide and connect in the groove 92 that slides and with connecting groove 91 grafting complex connecting rod 93, all set up the screw hole 94 that is linked together with the groove 92 that slides on drive gear 7 and the driven gear 8, screw hole 94 female connection has the bolt 95 that offsets with the terminal surface of connecting rod 93, bolt 95 is the inclined plane towards connecting groove 91 with the butt face of connecting rod 93. The end face of the bolt 95 is inserted into the connecting groove 91 against the connecting rod 93 by screwing the bolt 95, so that the driving gear 7 is fixedly connected to the driving shaft 6 or the driven gear 8 is fixedly connected to the driven shaft 2; when the driving gear 7 or the driven gear 8 needs to be disassembled, the end face of the bolt 95 is located in the threaded hole 94 by screwing the bolt 95 out, the driving shaft 6 or the driven shaft 2 is rotated to enable the bolt 95 to be located below the bolt, the connecting rod 93 is separated from the connecting groove 91 under the action of self gravity, and the work of disassembling the driving gear 7 or the driven gear 8 can be completed. An adjusting hole 96 is formed at the end of the bolt 95, and a tool is inserted into the adjusting hole 96 to make the bolt 95 rotate more easily.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (7)
1. A gear drive type pitot tube pump is characterized in that: the impeller comprises a bearing box (1) with openings at two ends, a driven shaft (2) and an impeller cover (3), wherein the driven shaft is in transmission connection with the inside of the bearing box (1), and the impeller cover (3) is provided with a channel for fluid to enter; the tail end of the driven shaft (2) is fixedly connected with a rotating shell (4), the rotating shell (4) and the impeller cover (3) form an impeller with a rotor cavity, a pitot tube (5) coaxial with the driven shaft (2) is fixedly connected to the bearing box (1), one end of the pitot tube (5) is located in the driven shaft (2), and the other end of the pitot tube is located in the rotor cavity; a driving shaft (6) parallel to the driven shaft (2) is rotatably connected to the bearing box (1), a driving gear (7) is sleeved on the driving shaft (6), a driven gear (8) meshed with the driving gear (7) is sleeved on the driven shaft (2), and the diameter of the driving gear (7) is larger than that of the driven gear (8); a first mechanical sealing assembly (13) is arranged between the driven shaft (2) and the bearing box (1), and a second mechanical sealing assembly (14) is arranged between the impeller cover (3) and the bearing box (1).
2. A gear driven pitot tube pump as claimed in claim 1, wherein: the driving gear (7) is detachably connected to the driving shaft (6) and the driven gear (8) is detachably connected to the connecting assembly on the driven shaft (2).
3. A gear driven pitot tube pump as claimed in claim 2, wherein: coupling assembling is including offering respectively on drive shaft (6) with spread groove (91) on driven shaft (2), offer respectively on drive gear (7) go up with slide groove (92) on driven gear (8) and slide connect in slide groove (92) in and with spread groove (91) grafting complex connecting rod (93), drive gear (7) with driven gear (8) are gone up all seted up with screw hole (94) that slide groove (92) are linked together, screw hole (94) female connection have with bolt (95) that the terminal surface of connecting rod (93) offseted, bolt (95) with the butt surface of connecting rod (93) is the inclined plane towards spread groove (91).
4. A gear driven pitot tube pump as claimed in claim 3 wherein: the end part of the bolt (95) is provided with an adjusting hole (96).
5. A gear driven pitot tube pump as claimed in claim 1, wherein: a first bearing (10) is arranged between the driving shaft (6) and the bearing box (1).
6. A gear driven pitot tube pump as claimed in claim 1, wherein: a second bearing (11) is arranged between the driven shaft (2) and the bearing box (1), and a third bearing (12) is arranged between the impeller cover (3) and the bearing box (1).
7. The gear driven pitot tube pump of claim 6, wherein: the first mechanical seal assembly (13) is located outside the second bearing (11), and the second mechanical seal assembly (14) is located outside the third bearing (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920314003.0U CN212959130U (en) | 2019-03-13 | 2019-03-13 | Gear drive type pitot tube pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920314003.0U CN212959130U (en) | 2019-03-13 | 2019-03-13 | Gear drive type pitot tube pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212959130U true CN212959130U (en) | 2021-04-13 |
Family
ID=75340558
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920314003.0U Active CN212959130U (en) | 2019-03-13 | 2019-03-13 | Gear drive type pitot tube pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212959130U (en) |
-
2019
- 2019-03-13 CN CN201920314003.0U patent/CN212959130U/en active Active
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