CN216554457U - Water pump convenient for replacing mechanical seal - Google Patents
Water pump convenient for replacing mechanical seal Download PDFInfo
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- CN216554457U CN216554457U CN202123363724.7U CN202123363724U CN216554457U CN 216554457 U CN216554457 U CN 216554457U CN 202123363724 U CN202123363724 U CN 202123363724U CN 216554457 U CN216554457 U CN 216554457U
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- mechanical seal
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- shaft
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Abstract
The utility model relates to a water pump field, the utility model discloses a conveniently change mechanical seal's water pump, it is including the driving motor who from top to bottom sets gradually, link and pump case, the inside pump shaft that is provided with that rotates of pump case, the pump shaft upwards extends the pump case, the pump shaft sets up mechanical seal with the pump case junction, mechanical seal passes through bolted connection with the pump case, be provided with coupling assembling between driving motor's motor shaft and the pump shaft, coupling assembling is including connecting the pipe box, fixed connection piece and the inside connecting rod of slip setting at connecting the pipe box of connecting pipe box one end of setting, the connection piece can be dismantled with driving motor's motor shaft and be connected, the spliced eye has been seted up at the top of pump shaft, the cooperation of pegging graft of connecting rod and spliced eye, the spout has been seted up on the lateral wall of connecting the pipe box, fixedly connected with slide bar on the connecting rod, the spout is extended to the one end of slide bar. This application has the effect of conveniently changing mechanical seal.
Description
Technical Field
The application relates to the field of water pumps, in particular to a water pump with a mechanical seal convenient to replace.
Background
Water pumps are machines that deliver or pressurize a liquid. It transfers the mechanical energy of prime mover or other external energy to liquid to increase the energy of liquid, mainly used to transport liquid including water, oil and liquid metal. Vane pumps use the interaction of rotating vanes with water to transfer energy.
Referring to fig. 1, a current water pump is including driving motor 1 that from top to bottom sets gradually, link 2 and pump case 3, driving motor 1 and pump case 3 all are connected with link 2 through the bolt, it is provided with pump shaft 31 to rotate inside the pump case 3, the impeller sets up on pump shaft 31, pump shaft 31 and the 1 coaxial settings of driving motor 1 axle of driving motor 1, pump shaft 31 upwards extends pump case 3, and be connected with driving motor 1's motor shaft, install mechanical seal 4 in the junction of pump shaft 31 and pump case 3, mechanical seal 4 passes through bolted connection with pump case 3.
In the process of implementing the application, the inventor finds that at least the following problems exist in the technology: mechanical seal can sealing performance decline after using a period, influences the sealing performance of water pump, needs to change it, changes mechanical seal at present and just can dismantle mechanical seal after need dismantling pump case and pump shaft earlier, and is comparatively inconvenient.
SUMMERY OF THE UTILITY MODEL
In order to conveniently change the mechanical seal of water pump, this application provides a conveniently change mechanical seal's water pump.
The application provides a conveniently change mechanical seal's water pump adopts following technical scheme:
a water pump convenient for replacing a mechanical seal comprises a driving motor, a connecting frame and a pump shell which are sequentially arranged from top to bottom, wherein a pump shaft is rotatably arranged in the pump shell, the pump shaft extends upwards out of the pump shell, a mechanical seal is arranged at the joint of the pump shaft and the pump shell, the mechanical seal is connected with the pump shell through a bolt, a connecting assembly is arranged between a motor shaft of the driving motor and the pump shaft, the connecting assembly comprises a connecting pipe sleeve, a connecting sheet fixedly arranged at one end of the connecting pipe sleeve and a connecting rod slidably arranged in the connecting pipe sleeve, the connecting sheet is detachably connected with the motor shaft of the driving motor, an inserting hole is formed in the top of the pump shaft, the connecting rod extends out of the other end of the connecting pipe sleeve, the connecting rod is inserted and matched with the inserting hole, a sliding groove is formed in the side wall of the connecting pipe sleeve, and a sliding rod is fixedly connected onto the connecting rod, one end of the sliding rod extends out of the sliding groove.
By adopting the technical scheme, when the mechanical seal is replaced, the connecting sheet is separated from the motor shaft of the driving motor, and then the connecting rod is contracted into the connecting pipe sleeve by utilizing the sliding of the sliding rod, so that the connection between the connecting rod and the pump shaft is disconnected, the connecting assembly is detached, and then the mechanical seal is replaced; during installation, according to the reverse operation of the steps, the installation of the connecting assembly is realized, the motor shaft of the driving motor is connected with the pump shaft, and finally, the mechanical seal of the water pump is convenient to replace.
Optionally, a connecting disc is integrally formed on a motor shaft of the driving motor, and the connecting disc is connected with the connecting disc through a bolt.
Through adopting above-mentioned technical scheme, pass through bolted connection with connection pad and connection piece, when convenient the dismantlement, promote the connection stability of connection pad and connection piece.
Optionally, a spring is arranged between the connecting rod and the connecting piece.
Through adopting above-mentioned technical scheme, utilize the spring to exert a power that is close to the spliced eye for the connecting rod to reduce the possibility of connecting rod roll-off spliced eye, promote the reliability that connecting rod and pump shaft are connected.
Optionally, a telescopic rod penetrates through the spring, one end of the telescopic rod is connected with the connecting rod, and the other end of the telescopic rod is connected with the connecting sheet.
Through adopting above-mentioned technical scheme, utilize the telescopic link to lead the slip of connecting rod, promote the gliding stability of connecting rod.
Optionally, the connecting pipe sleeve is connected with a locking bolt in a threaded manner, and the locking bolt is abutted to the connecting rod.
Through adopting above-mentioned technical scheme, screw up the locking bolt after, it is spacing to utilize the locking bolt to contradict to the connecting rod, reduces the connecting rod and produces gliding possibility at the during operation.
Optionally, a locking groove is formed in the position, close to the locking bolt, of the connecting rod, and a screw rod of the locking bolt is in plug-in fit with the locking groove.
Through adopting above-mentioned technical scheme, with the screw rod and the cooperation of pegging graft of locking bolt in locking groove, further carry on spacingly to the connecting rod, promote the stability of connecting rod work.
Optionally, a guide head is arranged at one end of the connecting rod close to the insertion hole, and the guide head gradually increases along a direction from the end close to the insertion hole to the end far away from the insertion hole.
Through adopting above-mentioned technical scheme, when the installation, also can insert the spliced eye with the connecting rod under the condition that connecting rod and spliced eye exist the deviation, promote the convenience of coupling assembling installation.
Optionally, one end of the connecting pipe sleeve close to the insertion hole is provided with an elastic sheet, and the elastic sheet abuts against the pump shaft.
Through adopting above-mentioned technical scheme, utilize the flexure strip to contradict with the pump shaft, the gap between connecting pipe sleeve and the pump shaft is filled to the flexure strip, seals and protects the junction of connecting pipe sleeve and pump shaft.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the mechanical seal is replaced, the connecting sheet is separated from a motor shaft of the driving motor, and then the connecting rod is contracted into the connecting pipe sleeve by utilizing the sliding of the sliding rod, so that the connection between the connecting rod and the pump shaft is disconnected, the connecting assembly is detached, and then the mechanical seal is replaced; during installation, the connecting assembly is installed according to the reverse operation of the steps, a motor shaft of the driving motor is connected with a pump shaft, and finally the mechanical seal of the water pump is convenient to replace;
2. the spring is utilized to apply a force close to the plug hole to the connecting rod, so that the possibility that the connecting rod slides out of the plug hole is reduced, and the reliability of connection between the connecting rod and the pump shaft is improved;
3. the elastic sheet is abutted against the pump shaft, and fills a gap between the connecting pipe sleeve and the pump shaft, so that the connecting part of the connecting pipe sleeve and the pump shaft is sealed and protected.
Drawings
Fig. 1 is a schematic structural view of a water pump in the background art of the present application.
Fig. 2 is a schematic overall structure diagram of an embodiment of the present application.
Fig. 3 is an exploded view of a connecting assembly structure embodied in an embodiment of the present application.
Fig. 4 is a schematic diagram showing a connecting assembly structure in the embodiment of the present application.
Fig. 5 is a sectional view taken along the line a-a in fig. 4.
Description of reference numerals:
1. a drive motor; 11. a connecting disc; 2. a connecting frame; 3. a pump housing; 31. a pump shaft; 311. inserting holes; 4. mechanical sealing; 5. a connecting assembly; 51. a connecting pipe sleeve; 511. a chute; 52. connecting sheets; 53. a connecting rod; 531. a slide bar; 532. a locking groove; 533. a guide head; 61. a spring; 62. a telescopic rod; 7. locking the bolt; 8. an elastic sheet.
Detailed Description
The present application is described in further detail below with reference to figures 2-5.
The embodiment of the application discloses a conveniently change mechanical seal's water pump. Referring to fig. 2, a conveniently change mechanical seal's water pump includes driving motor 1, link 2 and pump case 3 that from top to bottom set gradually, and driving motor 1 can dismantle with link 2 through the bolt and be connected, and pump case 3 can dismantle with link 2 through the bolt and be connected. The pump shell 3 is internally and rotatably provided with a pump shaft 31, the top end of the pump shaft 31 extends out of the pump shell 3, the joint of the pump shaft 31 and the pump shell 3 is provided with a mechanical seal 4, and the mechanical seal 4 is connected with the pump shell 3 through a bolt. A connection assembly 5 is provided between the motor shaft of the drive motor 1 and the pump shaft 31.
Referring to fig. 3, the connecting assembly 5 includes a connecting pipe sleeve 51, a connecting piece 52 and a connecting rod 53, the connecting pipe sleeve 51 is vertically arranged, the connecting piece 52 is fixedly connected to the top end of the connecting pipe sleeve 51, the connecting plate 11 is integrally formed on the motor shaft of the driving motor 1, and the connecting piece 52 is detachably connected to the connecting plate 11 through a bolt.
Referring to fig. 3, the connecting rod 53 is a square rod, the connecting rod 53 is slidably disposed inside the connecting pipe sleeve 51, friction exists between the connecting rod 53 and the inner wall of the connecting pipe sleeve 51, the bottom end of the connecting rod 53 extends out of the bottom end of the connecting pipe sleeve 51, the top of the pump shaft 31 is provided with an insertion hole 311, and the connecting rod 53 is in insertion fit with the insertion hole 311.
Referring to fig. 3, in order to facilitate the insertion and engagement of the connection rod 53 with the insertion hole 311, a guide head 533 is disposed at the bottom end of the connection rod 53, and the guide head 533 gradually increases in a direction from the connection hole 311 to a direction away from the connection hole 311, so as to guide the connection rod 53 when the connection rod 53 is inserted and engaged with the connection hole 311.
Referring to fig. 3, a sliding groove 511 is formed in a side wall of the connecting pipe sleeve 51 along an axial direction thereof, a sliding rod 531 is fixedly connected to the connecting rod 53, the sliding rod 531 is horizontally disposed, and one end of the sliding rod 531, which is far away from the connecting rod 53, extends out of the sliding groove 511. The sliding rod 531 is used for driving the sliding rod 531 to slide in the connecting pipe sleeve 51, so that the connection between the sliding rod 531 and the pump shaft 31 is realized.
Referring to fig. 4 and 5, in order to make the connection rod 53 not easily come off the insertion hole 311 during operation, a spring 61 is disposed between the connection rod 53 and the connection piece 52, and one end of the spring 61 is fixedly connected to the connection rod 53 and the other end is fixedly connected to the connection piece 52. An expansion link 62 is further arranged inside the spring 61 in a penetrating manner, one end of the expansion link 62 is fixedly connected with the connecting rod 53, and the other end of the expansion link 62 is fixedly connected with the connecting sheet 52. The connecting rod 53 is urged toward the insertion hole 311 by the spring 61.
Referring to fig. 5, since vibration is generated during operation of the water pump and the connecting rod 53 may move due to the vibration, a locking bolt 7 is threadedly coupled to the connecting socket 51, and a locking groove 532 is formed in the connecting rod 53 at a position of the locking bolt 7 near the bottom end of the connecting socket 51. After the connecting rod 53 is inserted into the insertion hole 311, the locking bolt 7 is tightened to insert the screw of the locking bolt 7 into the locking groove 532. The locking of the connecting rod 53 is realized.
Referring to fig. 3, an elastic piece 8 is fixedly connected to one end of the connection pipe sleeve 51 near the insertion hole 311, and the elastic piece 8 abuts against the pump shaft 31. The joint of the connecting pipe sleeve 51 and the pump shaft 31 is sealed and protected by the elastic sheet 8.
The implementation principle of the water pump with the mechanical seal convenient to replace is as follows: when the mechanical seal 4 is replaced, the connecting sheet 52 and the connecting disc 11 are firstly disassembled, then the locking bolt 7 is unscrewed, the sliding rod 531 is driven by manpower to slide until the sliding rod 531 slides out of the inserting hole 311, the connecting assembly 5 is disassembled, and the mechanical seal 4 is replaced. During installation, the connection between the motor shaft of the driving motor 1 and the pump shaft 31 is performed according to the reverse operation of the above steps.
The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. The utility model provides a conveniently change mechanical seal's water pump, includes driving motor (1), link (2) and pump case (3) that from top to bottom set gradually, inside the rotating of pump case (3) is provided with pump shaft (31), pump shaft (31) upwards extend pump case (3), pump shaft (31) with pump case (3) junction sets up mechanical seal (4), mechanical seal (4) with pump case (3) are through bolted connection, its characterized in that: the pump shaft connecting structure is characterized in that a connecting assembly (5) is arranged between a motor shaft of the driving motor (1) and the pump shaft (31), the connecting assembly (5) comprises a connecting pipe sleeve (51), a connecting piece (52) fixedly arranged at one end of the connecting pipe sleeve (51) and a connecting rod (53) arranged inside the connecting pipe sleeve (51) in a sliding mode, the connecting piece (52) is detachably connected with the motor shaft of the driving motor (1), a plug-in hole (311) is formed in the top of the pump shaft (31), the connecting rod (53) extends out of the other end of the connecting pipe sleeve (51), the connecting rod (53) is in plug-in fit with the plug-in hole (311), a sliding groove (511) is formed in the side wall of the connecting pipe sleeve (51), a sliding rod (531) is fixedly connected to the connecting rod (53), and the sliding groove (511) is formed in one end of the sliding rod (531).
2. The water pump convenient for replacing the mechanical seal as claimed in claim 1, wherein: a connecting disc (11) is integrally formed on a motor shaft of the driving motor (1), and the connecting disc (11) is connected with the connecting sheet (52) through a bolt.
3. The water pump convenient for replacing the mechanical seal as claimed in claim 1, wherein: a spring (61) is arranged between the connecting rod (53) and the connecting piece (52).
4. The water pump convenient for replacing the mechanical seal as claimed in claim 3, wherein: an expansion rod (62) penetrates through the spring (61), one end of the expansion rod (62) is connected with the connecting rod (53), and the other end of the expansion rod (62) is connected with the connecting sheet (52).
5. The water pump convenient for replacing the mechanical seal as claimed in claim 1, wherein: the connecting pipe sleeve (51) is connected with a locking bolt (7) in a threaded mode, and the locking bolt (7) is abutted to the connecting rod (53).
6. The water pump convenient for replacing the mechanical seal as claimed in claim 5, wherein: and a locking groove (532) is formed in the position, close to the locking bolt (7), of the connecting rod (53), and a screw rod of the locking bolt (7) is in plug-in fit with the locking groove (532).
7. The water pump convenient for replacing the mechanical seal as claimed in claim 1, wherein: one end, close to the insertion hole (311), of the connecting rod (53) is provided with a guide head (533), and the guide head (533) is gradually enlarged along the direction from the end close to the insertion hole (311) to the end far away from the insertion hole (311).
8. The water pump convenient for replacing the mechanical seal as claimed in claim 1, wherein: an elastic sheet (8) is arranged at one end, close to the inserting hole (311), of the connecting pipe sleeve (51), and the elastic sheet (8) is abutted against the pump shaft (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123363724.7U CN216554457U (en) | 2021-12-29 | 2021-12-29 | Water pump convenient for replacing mechanical seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123363724.7U CN216554457U (en) | 2021-12-29 | 2021-12-29 | Water pump convenient for replacing mechanical seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216554457U true CN216554457U (en) | 2022-05-17 |
Family
ID=81558671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123363724.7U Active CN216554457U (en) | 2021-12-29 | 2021-12-29 | Water pump convenient for replacing mechanical seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216554457U (en) |
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2021
- 2021-12-29 CN CN202123363724.7U patent/CN216554457U/en active Active
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