CN219282072U - Submerged pump and electric submerged pump - Google Patents
Submerged pump and electric submerged pump Download PDFInfo
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- CN219282072U CN219282072U CN202223338875.1U CN202223338875U CN219282072U CN 219282072 U CN219282072 U CN 219282072U CN 202223338875 U CN202223338875 U CN 202223338875U CN 219282072 U CN219282072 U CN 219282072U
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- pump
- shaft
- submerged pump
- connecting groove
- submerged
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Abstract
The utility model discloses a submerged pump and an electric submerged pump, which comprise a pump body and a pump shaft penetrating through the pump body, wherein a supporting pipe is sleeved outside the pump shaft, the pump body comprises a shaft connecting seat, a connecting groove for inserting one end of the supporting pipe is formed in the shaft connecting seat, the pump shaft penetrates through the inner side of an inner ring of the connecting groove, and the supporting pipe is fixed with an outer ring of the connecting groove. The supporting pipe is inserted into the connecting groove, so that the installation is more convenient and accurate; the supporting pipe is fixed with the outer ring of the connecting groove, so that a sufficient gap is reserved between the supporting pipe and the pump shaft; the axial force at the bottom end of the supporting tube is dispersed while the rotating movement of the supporting tube is prevented by threaded connection or penetrating screw connection.
Description
Technical Field
The utility model relates to the technical field of pump manufacturing, in particular to a motor-driven long-shaft submerged pump.
Background
The submerged pump is a vertical pump which submerges the over-current components such as the impeller, the pump body and the like in the conveyed materials and is connected with the motor, so that the submerged pump is a positive pressure conveying vertical pump which can effectively solve the problems of air resistance and cavitation, and is widely applied to civil and especially chemical fields.
Because the submerged pump is entirely submerged in the material being conveyed, and the drive equipment is often located above the material being conveyed, the submerged pump often has a longer pump shaft. In order to protect the pump shaft structure from being corroded by conveyed materials, a structure similar to a supporting pipe needs to be sleeved outside the pump shaft to protect the pump shaft and support the pump shaft. For example, a "submerged pump" disclosed in chinese patent literature, its publication No. CN108443173a, including a pump shaft, there are first and second bearings arranged along its axial interval on the pump shaft, the lower end of the pump shaft includes a large shaft diameter section, a middle shaft diameter section and a small shaft diameter section arranged in turn from top to bottom, the small shaft diameter section is inserted in the impeller shaft hole and connected with the impeller, the shaft sleeve sleeved on the middle shaft diameter section is placed in the first bearing, the shaft sleeve extends to the shaft body periphery of the large shaft diameter section, the axial table surface formed by the step of the large and middle shaft diameter sections and the axial table surface formed by the step hole of the shaft sleeve are in clearance fit in the axial direction. The motor is provided with the support pipe that loops the pump shaft between motor and the submerged pump, and support pipe and submerged pump top direct butt joint installation, clearance fit's shortcoming is that support pipe takes place to rotate easily and leads to the installation insecure, and the axial gravity that support pipe bore concentrates on support pipe lower extreme, leads to the unstable structure and damages easily.
Disclosure of Invention
In order to solve the problems that the support pipe of the existing submerged pump is not firmly installed and damaged, the submerged pump with the support pipe firmly installed is provided.
The utility model is realized by the following technical scheme: the utility model provides a submerged pump, includes the pump body and wears to establish the pump shaft on the pump body, the outside cover of pump shaft is equipped with the support pipe, the pump body includes the hub connection seat, is provided with the spread groove that is used for inserting support pipe one end on the hub connection seat, the pump shaft passes from the inboard of the inner circle of spread groove, the support pipe is fixed with the outer lane of spread groove.
The supporting pipe is inserted into the connecting groove, so that the installation is more convenient and accurate; the supporting pipe is fixed with the outer ring of the connecting groove, so that a sufficient gap is reserved between the supporting pipe and the pump shaft; the axial force at the bottom end of the supporting tube is dispersed while the rotating movement of the supporting tube is prevented by threaded connection or penetrating screw connection.
Preferably, the shaft connecting seat further comprises a sliding bearing sleeved outside the pump shaft, and the sliding bearing is positioned on the inner side of the inner ring of the connecting groove.
The dynamic bearing is made of a tin bronze material with a lubricating effect, so that the abrasion of the pump shaft to the pump body joint can be prevented while the resistance is reduced, the problems of pump shaft runout and noise caused by abrasion are prevented, and the service life and the user experience are prolonged; in addition, the pump body can be directly injection-molded on the sliding bearing during injection molding, so that the steps of a case are reduced.
Preferably, the inner side of the outer ring of the connecting groove is provided with a plurality of raised strips, the raised strips can reduce the resistance of the shaft connecting seat to the pump shaft during installation, and the raised strips have certain elasticity due to material reasons, so that tolerance redundancy can be provided, and clamping force is formed on the supporting tube.
Preferably, the protruding strips are provided with guide surfaces on one side facing the pump shaft, so that the support tube can be conveniently guided into the connecting grooves.
Preferably, the convex ring is circumferentially arranged on the inner ring inner layer of the connecting groove, the concave ring for accommodating the convex ring is arranged at the corresponding position of the sliding bearing, the contact area between the sliding bearing and the connecting groove is increased, and the connection between the sliding bearing and the connecting groove is firmer after injection molding.
Preferably, the pump body further comprises a base containing blades, a water inlet structure is arranged between the base and the shaft connecting seat, and the water inlet structure comprises a plurality of water guide plates which are axially arranged.
The water inlet structure is arranged above the blades, so that the submerged pump can be buried into the ground according to the situation when in use, and the whole submerged pump is firmer; the water inlet is higher, so that the submerged pump is prevented from being blocked due to impurities sucked into the bottom of the liquid; in addition, the water guide plate arranged along the axial direction can play a supporting role, so that the opening size of the water inlet structure of the submerged pump is increased, and meanwhile, the structural strength is not weakened.
Preferably, the water guide plate comprises a plurality of anti-tilting water guide plates, wherein the lower ends of the anti-tilting water guide plates are connected to the upper portion of the Su search fox base, and the inner sides of the upper ends of the water guide plates are connected to the outer sides of the outer rings of the connecting grooves, so that the water guide plates can prevent the pump shaft, the support tube and the upper structure thereof from tilting to the side under the condition of not affecting water guide.
Preferably, a nut for being in threaded connection with the pump shaft is arranged in the center of the vane in the pump body, and a self-locking ring without threads is arranged between the lower end of the nut and the joint of the vane.
The blade structure is directly injection molded on the nut and the self-locking ring, and redundant mounting steps are not needed, so that the pump shaft and the blade are more firmly mounted; the self-locking ring can effectively prevent the blade from falling off during working.
Preferably, the pump shaft is provided with coarse threads above the nut, and the thread pitch of the coarse threads is larger than that of the nut, so that the blade cannot be further screwed into the coarse threads during installation, and the installation and positioning effects are achieved.
The electric submerged pump comprises the submerged pump and further comprises a motor for driving the submerged pump, and a motor shaft of the motor is coaxially connected with a pump shaft through a shaft sleeve. The motor is located and waits to carry the material top, and the motor shaft passes through shaft sleeve connection with the pump shaft, like threaded connection, simple to operate.
Compared with the prior art, the utility model has the advantages that:
the supporting pipe is inserted into the connecting groove, so that the installation is more convenient and accurate; the supporting pipe is fixed with the outer ring of the connecting groove, so that a sufficient gap is reserved between the supporting pipe and the pump shaft; the axial force at the bottom end of the supporting tube is dispersed while the rotating movement of the supporting tube is prevented by threaded connection or penetrating screw connection.
Drawings
FIG. 1 is a schematic side view of a first embodiment of the present utility model;
FIG. 2 is a schematic top view of a first embodiment of the present utility model;
FIG. 3 is a schematic cross-sectional view at A-A in FIG. 2;
FIG. 4 is an enlarged schematic view at B in FIG. 3;
FIG. 5 is a schematic perspective view of a second embodiment of the utility model;
FIG. 6 is an enlarged schematic view of FIG. 5A;
fig. 7 is a schematic side sectional view of a second embodiment of the utility model.
In the figure: pump body 1, shaft connection seat 11, connection groove 111, convex ring 1111, convex strip 112, sliding bearing 113, concave ring 1131, base 12, water guide plate 13, anti-tilting water guide plate 131, blade 2, nut 21, self-locking ring 22, coarse thread 23, pump shaft 3, support tube 4, screw 5, motor 6, motor shaft 7, shaft sleeve 8, water outlet 9.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the present utility model easy to understand, the following further describes how the present utility model is implemented with reference to the accompanying drawings and the detailed description.
1-4, a submerged pump, comprising:
the pump body 1 comprises a base 12 containing the blades 2, a water inlet structure is arranged between the base 12 and the shaft connecting seat 11, the water inlet structure comprises a plurality of axially arranged water guide plates 13, the water guide plates 13 comprise a plurality of anti-tilting water guide plates 131, the lower ends of the anti-tilting water guide plates 131 are connected to the upper part of the base 12, and the inner sides of the upper ends of the water guide plates 13 are connected to the outer sides of the outer rings of the connecting grooves 111;
the pump shaft 3 is arranged on the pump body 1 in a penetrating way, the pump shaft 3 is provided with coarse threads 23 above the nut 21, and the thread interval of the coarse threads 23 is larger than that of the nut 21, so that the blade 2 cannot be screwed into the coarse threads 23 further during installation, and the installation and positioning effects are achieved;
the supporting pipe 4 is sleeved outside the pump shaft 3;
the water outlet 9 is arranged on one side of the pump body, the water outlet 9 is communicated with the space of the blade 2 in the base, and an anti-tilting water guide plate 131 is arranged between the water outlet and the shaft connecting seat 11 to prevent the water outlet from tilting.
The pump body 1 includes:
a shaft connection seat 11;
the base 12 is internally provided with the blade 2, the center of the blade 2 is provided with a nut 21 for being in threaded connection with the pump shaft 3, and a self-locking ring 22 without threads is arranged between the lower end of the nut 21 and the joint of the blade 2.
The shaft connection seat 11 includes:
the connecting groove 111 is used for being inserted into the lower end of the supporting tube 4, the pump shaft 3 passes through the inner side of the inner ring of the connecting groove 111, and the supporting tube 4 and the outer ring of the connecting groove 111 are fixedly penetrated by the screw 5;
the sliding bearing 113 is positioned on the inner side of the inner ring of the connecting groove 111 and sleeved outside the pump shaft 3.
In addition, a plurality of raised strips 112 are uniformly arranged on the inner side of the outer ring of the connecting groove 111, and a guide surface is arranged on one side of the raised strips 112, which faces the pump shaft, so that the support tube can be conveniently guided into the connecting groove; the convex ring 1111 is circumferentially arranged on the inner side surface of the inner ring of the connecting groove 111, the concave ring 1131 for accommodating the convex ring 1111 is arranged at the corresponding position of the sliding bearing 113, and the contact area between the sliding bearing and the connecting groove is increased, so that the connection between the sliding bearing and the connecting groove is firmer after injection molding.
The beneficial effects of this embodiment include: the supporting pipe 4 is inserted into the connecting groove, so that the installation is more convenient and accurate; the supporting tube 4 is fixed with the outer ring of the connecting groove, so that a sufficient gap is reserved between the supporting tube 4 and the pump shaft; the axial force at the bottom end of the supporting tube 4 can be dispersed while the supporting tube 4 is prevented from rotating and moving by threaded connection or penetrating screw connection; the water inlet structure is arranged above the blade 2, so that the submerged pump can be buried into the ground according to the situation when in use, and the whole submerged pump is firmer; the water inlet is higher, prevents to inhale impurity at liquid bottom and lead to submerged pump to take place to block up.
The sliding bearing is made of a tin bronze material with a lubricating effect, so that the abrasion of the pump shaft to the joint of the pump body 1 can be prevented while the resistance is reduced, the problems of pump shaft runout and noise caused by abrasion are prevented, and the service life and the user experience are prolonged; in addition, the pump body 1 can be directly injection-molded on the sliding bearing during injection molding, so that the steps of a case are reduced.
The functions of the raised strips include: the raised strips can reduce the resistance of the shaft connecting seat to the pump shaft during installation, and the raised strips have certain elasticity due to material reasons, so that the clamping force can be formed on the supporting tube while tolerance redundancy is provided.
The water guide plate has the following functions: the submerged pump can play a supporting role, so that the opening size of the water inlet structure is increased, and meanwhile, the structural strength is not weakened; the lower extreme of preventing inclining the water guide plate is connected in the upper portion of thresh search fox base 12, and the outside at the outer lane of spread groove is connected to the inboard of the upper end of water guide plate for the water guide plate is under the condition of not influencing the water guide, prevents pump shaft and stay tube and upper structure toward the side and emptys.
The pump body 1 is manufactured in an injection molding mode, and a sliding bearing, a nut and a self-locking ring are arranged at the corresponding position of the die during manufacturing, so that redundant mounting steps are reduced.
In a second embodiment, as shown in fig. 5-7, an electric submerged pump includes a submerged pump according to the first embodiment, and further includes a motor 6 for driving the submerged pump, where a motor shaft 7 of the motor 6 is coaxially connected to the pump shaft through a shaft sleeve 8. The motor 6 is positioned above the materials to be conveyed, and the motor shaft 7 is connected with the pump shaft through a shaft sleeve 8, such as threaded connection, so that the installation is convenient.
Claims (10)
1. The utility model provides a submerged pump, includes the pump body and wears to establish the pump shaft on the pump body, the outside cover of pump shaft is equipped with support pipe, its characterized in that: the pump body comprises an axle connecting seat, a connecting groove for inserting one end of a supporting tube is formed in the axle connecting seat, the pump shaft penetrates through the inner side of the inner ring of the connecting groove, and the supporting tube is fixed with the outer ring of the connecting groove.
2. Submerged pump according to claim 1, characterized in that: the shaft connecting seat further comprises a sliding bearing sleeved outside the pump shaft, and the sliding bearing is positioned on the inner side of the inner ring of the connecting groove.
3. Submerged pump according to claim 1, characterized in that: and a plurality of raised strips are arranged on the inner side of the outer ring of the connecting groove.
4. A submerged pump according to claim 3, characterized in that: the convex strip is provided with a guide surface on one side facing the pump shaft.
5. Submerged pump according to claim 2, characterized in that: the inner ring inner layer circumference of the connecting groove is provided with a convex ring, and the sliding bearing is provided with a concave ring for accommodating the convex ring at a corresponding position.
6. Submerged pump according to claim 1 or 2 or 3 or 4, characterized in that: the pump body is further provided with a water inlet structure including a plurality of water guide plates arranged axially, and the water inlet structure is arranged between the base and the shaft connecting seat.
7. The submerged pump of claim 6, wherein: the water guide plate comprises a plurality of anti-tilting water guide plates, the lower ends of the anti-tilting water guide plates are connected to the upper portion of the Su search fox base, and the inner sides of the upper ends of the water guide plates are connected to the outer sides of the outer rings of the connecting grooves.
8. Submerged pump according to claim 1 or 2 or 3 or 4, characterized in that: the center of the vane in the pump body is provided with a nut for being in threaded connection with the pump shaft, and a self-locking ring without threads is arranged between the lower end of the nut and the joint of the vane.
9. The submerged pump of claim 8, wherein: the pump shaft is provided with coarse threads above the nut, and the thread pitch of the coarse threads is larger than that of the nut.
10. An electric submerged pump comprising a submerged pump according to any one of the preceding claims 1-9, characterized in that: the submerged pump is characterized by further comprising a motor for driving the submerged pump, wherein a motor shaft of the motor is coaxially connected with the pump shaft through a shaft sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223338875.1U CN219282072U (en) | 2022-12-12 | 2022-12-12 | Submerged pump and electric submerged pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223338875.1U CN219282072U (en) | 2022-12-12 | 2022-12-12 | Submerged pump and electric submerged pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219282072U true CN219282072U (en) | 2023-06-30 |
Family
ID=86939663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223338875.1U Active CN219282072U (en) | 2022-12-12 | 2022-12-12 | Submerged pump and electric submerged pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219282072U (en) |
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2022
- 2022-12-12 CN CN202223338875.1U patent/CN219282072U/en active Active
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