CN218207107U

CN218207107U - Stealthily defile pump sand control structure and stealthily defile pump

Info

Publication number: CN218207107U
Application number: CN202222142007.XU
Authority: CN
Inventors: 郭亚平; 陈金强; 罗小伍
Original assignee: Frog Pump Co ltd
Current assignee: Frog Pump Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2023-01-03
Anticipated expiration: 2032-08-15

Abstract

The utility model relates to a stealthily dirty pump sand control structure and stealthily dirty pump, stealthily dirty pump sand control structure include skeleton oil blanket and the cover on the oil cylinder lid establish the epaxial ceramic axle sleeve of pivot, skeleton oil blanket outer wall supports tight ceramic axle sleeve outer wall, one side interference towards the pivot of ceramic axle sleeve is connected with the elastic sleeve, the elastic sleeve is established to the pivot cover and supports tightly fixedly with the interior rampart of elastic sleeve. Due to the arrangement of the ceramic shaft sleeve and the elastic sleeve, the assembly time of the rotating shaft and the ceramic shaft sleeve is short, and the assembly efficiency of workers is improved; the arrangement of the bulge ensures that the rubber sleeve is not easy to deviate on the rotating shaft, and further improves the connection stability of the ceramic shaft sleeve and the rotating shaft; the setting of collar makes the difficult rubber sleeve that breaks away from of ceramic axle sleeve, further improves the stability of being connected of ceramic axle sleeve and rubber sleeve.

Description

Stealthily defile pump sand control structure and stealthily defile pump

Technical Field

The utility model relates to a stealthily dirty pump subassembly's field especially relates to a stealthily dirty pump sand control structure and stealthily dirty pump.

Background

The submersible pump is an important device for pumping water from a deep well, the whole unit is submerged to work when in use, underground water is pumped to the ground, and when the submersible pump is used in a water area with heavy silt, silt can enter the pump body to influence the normal work of the submersible pump.

The traditional sand prevention structure is mainly characterized in that a rotating shaft and a ceramic shaft sleeve are in clearance fit, and the ceramic shaft sleeve is bonded by glue and forms a sand prevention structure with a framework oil seal.

Aiming at the related technologies, the inventor thinks that the glue amount in the traditional spinning sand structure is not easy to control, the glue is easy to overflow when the glue amount is too much, the overflowed glue is processed by manpower in the later period, and the production cost of the submersible pump is increased; when the glue consumption is too small, the ceramic shaft sleeve and the rotating shaft are not completely bonded, so that the ceramic shaft sleeve and the rotating shaft are easy to relatively rotate, the ceramic shaft sleeve is damaged, and sand prevention is ineffective; the glue has long solidification time during the assembly of the traditional sand prevention structure, and needs to be manufactured in advance under an assembly line; therefore, the working efficiency of workers for assembling the ceramic shaft sleeve and the rotating shaft is low.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem of the installation of ceramic axle sleeve and pivot, this application provides a stealthily dirty pump sand control structure and stealthily dirty pump.

First aspect, the application provides a stealthily dirty pump sand control structure adopts following technical scheme:

the utility model provides a stealthily dirty pump sand control structure, includes skeleton oil blanket and the cover on the hydro-cylinder lid and establishes the epaxial ceramic axle sleeve of pivot, skeleton oil blanket outer wall supports tight ceramic axle sleeve outer wall, one side interference towards the pivot of ceramic axle sleeve is connected with the elastic sleeve, the pivot cover is established the elastic sleeve and is supported tightly fixedly with elastic sleeve inner ring wall.

By adopting the technical scheme, when the sand prevention structure of the submersible sewage pump is used, the end part of the rotating shaft penetrates through the elastic sleeve, the inner annular wall of the elastic sleeve is abutted against the circumferential outer wall of the rotating shaft to form sealing, the outer wall of the ceramic shaft sleeve is abutted against and fixed with the outer annular wall of the elastic sleeve and limits the ceramic shaft sleeve on the circumferential outer wall of the rotating shaft, so that the ceramic shaft sleeve is not easy to deviate on the rotating shaft, the installation of the ceramic shaft sleeve and the rotating shaft is realized, and the sand prevention structure is formed together with the framework oil seal; the staff can operate the installation completion of ceramic axle sleeve and pivot on the assembly line, makes the pivot short consuming time with the assembly of ceramic axle sleeve, improves staff's assembly efficiency.

Optionally, the elastic sleeve is a rubber sleeve.

Through adopting above-mentioned technical scheme, the elastic component is the rubber sleeve, has certain deformability, and ceramic axle sleeve and pivot are through realizing rotating with rubber sleeve interference fit, make ceramic axle sleeve be difficult for breaking away from the pivot, further improve the stability of being connected of ceramic axle sleeve and pivot.

Optionally, a protrusion is arranged on one side of the rubber sleeve facing the rotating shaft, and the end face of the protrusion is tightly abutted and fixed with the outer wall of the rotating shaft.

Through adopting above-mentioned technical scheme, protruding outer wall supports tightly fixedly with the pivot outer wall, increases the magnitude of interference between rubber sleeve and the pivot, makes the difficult emergence skew of rubber sleeve in the pivot, further improves the stability of being connected of ceramic axle sleeve and pivot.

Optionally, one side of the rubber sleeve facing the ceramic shaft sleeve is provided with a mounting ring, and the end of the ceramic shaft sleeve is nested on the inner ring wall of the mounting ring.

Through adopting above-mentioned technical scheme, when ceramic axle sleeve tip nestification installation intra-annular wall was gone up, the ceramic axle sleeve outer wall supported tight installation intra-annular wall and formed sealedly, made the difficult rubber sleeve that breaks away from of ceramic axle sleeve, further improved the stability of being connected of ceramic axle sleeve and rubber sleeve.

Optionally, the framework oil seal comprises an oil seal body, a framework is arranged in the oil seal body, and a self-tightening spiral spring is arranged on one side, facing the pump body, of the oil seal body.

By adopting the technical scheme, the framework plays a role in strengthening the oil seal body, so that the oil seal body keeps better shape and tension; when the framework oil seal is used for a long time, the tension of the oil seal body is reduced due to oxidation of the oil seal body, and the self-tightening spiral spring can compensate the self-tightening force of the oil seal body.

Optionally, one side of the oil seal body facing the ceramic shaft sleeve is provided with a seal lip, a lip waist part and a dust lip in sequence.

Through adopting above-mentioned technical scheme, when external pressure oppresses the internal lip of oil blanket, the oil blanket body orders about seal lip, lip waist and dust lip and supports tightly fixedly with ceramic axle sleeve outer wall, further improves the fastness to tight of ceramic axle sleeve and rubber sleeve.

In a second aspect, the present application provides a submersible sewage pump, which adopts the following technical scheme:

the utility model provides a stealthily dirty pump, includes the pump body, sets up the driving motor on the pump body, be provided with the hydro-cylinder between the pump body and the driving motor, the coaxial pivot that is provided with on driving motor's the motor shaft, the hydro-cylinder is worn to establish by pivot length direction's one end and the pump body is gone into to the hydro-cylinder, the hydro-cylinder is provided with the cylinder cap towards one side of the pump body, the pottery axle sleeve is located one side of cylinder cap towards the pump body.

Through adopting above-mentioned technical scheme, driving motor drives the pivot and rotates, and ceramic axle sleeve passes through rubber sleeve interference fit with the pivot and realizes synchronous rotation, and constitutes sand control structure jointly with the skeleton oil blanket, makes the difficult junction of follow pivot and oil cylinder lid of gravel and sand get into the hydro-cylinder inner chamber to improve the life of stealthily dirty pump, reduce user's use cost.

Optionally, the oil cylinder cover is arranged at one end of the connecting bolt in a penetrating mode, and the connecting bolt is connected to the pump body in a threaded mode.

Through adopting above-mentioned technical scheme, when the pump body damaged, the staff unscrewed connecting bolt, realized the split of the pump body and cylinder cap, made things convenient for the staff to install new pump body on the cylinder cap, need not to change whole stealthily dirty pump, reduced the waste of material.

Optionally, one side of the pump body towards the oil cylinder cover is provided with a sealing groove, a sealing ring is arranged in the sealing groove, and the pump body is tightly abutted to the oil cylinder cover through the sealing ring to form sealing.

Through adopting above-mentioned technical scheme, the pump body supports tight oil cylinder lid through the sealing ring and forms sealedly, makes fluid be difficult for spilling over from the junction of pump body and oil cylinder lid, reduces the waste of fluid, and the grit is difficult for getting into the hydro-cylinder inner chamber from the junction of pump body and oil cylinder lid, makes stealthily dirty pump be difficult for impairedly to reduce staff's use cost.

In summary, the present application includes at least one of the following beneficial technical effects:

1. due to the arrangement of the ceramic shaft sleeve and the elastic sleeve, the assembly time of the rotating shaft and the ceramic shaft sleeve is short, and the assembly efficiency of workers is improved;

2. the arrangement of the bulge ensures that the rubber sleeve is not easy to deviate on the rotating shaft, and further improves the connection stability of the ceramic shaft sleeve and the rotating shaft;

3. the setting of collar makes the difficult rubber sleeve that breaks away from of ceramic axle sleeve, further improves the stability of being connected of ceramic axle sleeve and rubber sleeve.

Drawings

Fig. 1 is a schematic view of the overall structure of a submersible sewage pump in the embodiment of the present application.

Fig. 2 is an enlarged view at a in fig. 1.

Description of the reference numerals: 1. a pump body; 11. a pump chamber; 12. a sealing groove; 121. a seal ring; 2. a drive motor; 21. a rotating shaft; 211. an impeller; 3. an oil cylinder; 31. a framework oil seal; 311. an oil seal body; 3111. a sealing lip; 3112. the lip and waist part; 3113. a dust lip; 312. a framework; 313. a self-tightening coil spring; 32. an oil cylinder cover; 4. a ceramic shaft sleeve; 5. an elastic sleeve; 51. a rubber sleeve; 511. a protrusion; 512. a mounting ring; 6. and connecting the bolts.

Detailed Description

The present application is described in further detail below with reference to figures 1-2.

The embodiment of the application discloses stealthily dirty pump sand control structure. Referring to fig. 1 and 2, including skeleton oil blanket 31 on the oil cylinder cover 32 and the ceramic axle sleeve 4 of cover on the pivot 21, skeleton oil blanket 31 is located ceramic axle sleeve 4 and keeps away from one side of pivot 21 and skeleton oil blanket 31 outer wall and supports tight ceramic axle sleeve 4 outer wall, and ceramic axle sleeve 4 is connected with elastic sleeve 5 towards the outer wall of pivot 21, and elastic sleeve 5 is rubber sleeve 51, has certain deformability.

Referring to fig. 2, the rotating shaft 21 penetrates through the inner ring of the elastic sleeve 5 and abuts against the inner ring wall of the elastic sleeve 5 to form a seal, the outer wall of the ceramic shaft sleeve 4 abuts against and is fixed to the outer ring of the elastic sleeve 5, and when the rotating shaft 21 rotates, the ceramic shaft sleeve 4 abutting against the rubber sleeve 51 is driven to rotate and forms a sand prevention structure with the framework oil seal 31.

Referring to fig. 2, a protrusion 511 is fixed on an inner annular wall of the rubber sleeve 51 facing the rotating shaft 21, and an outer wall of the protrusion 511 is tightly fixed with a circumferential outer wall of the rotating shaft 21, so that interference between the rubber sleeve 51 and the rotating shaft 21 is increased.

Referring to fig. 2, a mounting ring 512 is fixed on the circumferential outer wall of the rubber sleeve 51 facing the ceramic shaft sleeve 4, the end portion of the ceramic shaft sleeve 4 far away from the oil seal body 311 is nested on the inner annular wall of the mounting ring 512, the outer wall of the ceramic shaft sleeve 4 abuts against the inner annular wall of the mounting ring 512 to form a seal, and the connection stability of the ceramic shaft sleeve 4 and the mounting ring 512 is improved.

Referring to fig. 2, the framework oil seal 31 includes an oil seal body 311, and the oil seal body 311 is made of rubber and has a certain deformation capability. The outer wall of the oil seal body 311 is tightly abutted with the outer wall of the oil chamber 3 to form a seal.

Referring to fig. 2, a frame 312 is fixed in the oil seal body 311, and the frame 312 is used for supporting the oil seal body 311 so that the oil seal body 311 maintains a good shape and tension.

Referring to fig. 1 and 2, a self-tightening coil spring 313 is connected to one side of the oil seal body 311 facing the pump body 1, and the self-tightening coil spring 313 is used for compensating the self-tightening force of the oil seal body 311 and increasing the service life of the framework oil seal 31.

Referring to fig. 2, the oil seal body 311 includes a seal lip 3111, a lip waist portion 3112 and a dust lip 3113 in this order from the side facing the ceramic boss 4, and end faces of the seal lip 3111, the lip waist portion 3112 and the dust lip 3113 are brought into contact with an outer wall of the ceramic boss 4.

The implementation principle of this application embodiment a stealthily dirty pump sand control structure does: ceramic shaft sleeve 4 and pivot 21 realize synchronous rotation through with rubber sleeve 51 interference fit, and form sand control structure with skeleton oil blanket 31, make the staff convenient to ceramic shaft sleeve 4 and pivot 21's installation operation on the assembly line, the assembly is consuming time weak, improves staff's work efficiency, reduces the manufacturing cost of stealthily dirty pump.

The embodiment of the application also discloses a submersible sewage pump. Referring to fig. 1, the pump comprises a pump body 1 and a driving motor 2 connected to the pump body 1, wherein an oil cylinder 3 is arranged between the pump body 1 and the driving motor 2; the motor shaft of driving motor 2 is towards hydro-cylinder 3, and coaxial fixed with pivot 21 on driving motor 2's motor shaft, and the tip that driving motor 2 was kept away from to pivot 21 wears to establish hydro-cylinder 3 and gets into in the pump body 1.

Referring to fig. 1 and 2, an oil cylinder cover 32 is connected to one side of the oil cylinder 3 facing the pump body 1, the ceramic bushing 4 is located on one side of the oil cylinder cover 32 facing the pump body 1, and the framework oil seal 31 is located on one side of the ceramic bushing 4 away from the rotating shaft 21.

Referring to fig. 1, a pump chamber 11 is formed in a pump body 1, and an impeller 211 is connected to an end of a rotating shaft 21 located in the pump chamber 11.

Referring to fig. 1, the sand control structure of the submersible sewage pump further comprises a connecting bolt 6, wherein one end of the connecting bolt 6 penetrates through the oil cylinder 3 and is in threaded connection with the pump body 1.

Referring to fig. 1, a sealing groove 12 is circumferentially formed in one side of the pump body 1 facing the oil cylinder 3, a sealing ring 121 is arranged in the sealing groove 12, and the pump body 1 abuts against the oil cylinder 3 through the sealing ring 121 to form sealing.

The implementation principle of the submersible sewage pump in the embodiment of the application is as follows: when the sand control structure of the submersible sewage pump is used, the circumferential inner annular wall of the rubber sleeve 51 is abutted against the circumferential outer annular wall of the rotating shaft 21 to form a seal, the pressure in the pump body 1 extrudes the lip of the oil seal body 311 to enable the oil seal body 311 to generate certain deformation and drive the outer wall of the ceramic shaft sleeve 4 to be abutted against the circumferential inner annular wall of the mounting ring 512 to form a seal, and the ceramic shaft sleeve 4 is abutted against the circumferential outer wall of the rotating shaft 21 through the rubber sleeve 51 to form a seal, so that the mounting of the ceramic shaft sleeve 4 and the rotating shaft 21 is realized; the rotation of the rotating shaft 21 drives the ceramic shaft sleeve 4 to rotate and forms a sand prevention structure with the framework oil seal 31, so that the submersible sewage pump is not easy to damage, and the use cost of workers is reduced.

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

1. The utility model provides a stealthily dirty pump sand control structure which characterized in that: including skeleton oil blanket (31) and the cover on hydro-cylinder cap (32) establish ceramic axle sleeve (4) on pivot (21), skeleton oil blanket (31) outer wall supports tight ceramic axle sleeve (4) outer wall, one side interference fit connection of ceramic axle sleeve (4) towards pivot (21) has elastic sleeve (5), pivot (21) cover is established elastic sleeve (5) and is supported tightly fixedly with elastic sleeve (5) inner ring wall.

2. The sand control structure of the submersible sewage pump according to claim 1, wherein: the elastic sleeve (5) is a rubber sleeve (51).

3. The sand control structure of the submersible sewage pump according to claim 2, wherein: one side of the rubber sleeve (51) facing the rotating shaft (21) is provided with a bulge (511), and the end face of the bulge (511) is tightly fixed with the outer wall of the rotating shaft (21).

4. The sand control structure of the submersible sewage pump according to claim 2, wherein: one side of the rubber sleeve (51) facing the ceramic shaft sleeve (4) is provided with a mounting ring (512), and the end part of the ceramic shaft sleeve (4) is embedded on the inner ring wall of the mounting ring (512).

5. The sand control structure of the submersible sewage pump according to claim 1, wherein: the framework oil seal (31) comprises an oil seal body (311), a framework (312) is arranged in the oil seal body (311), and a self-tightening spiral spring (313) is arranged on one side, facing the pump body (1), of the oil seal body (311).

6. The sand control structure of the submersible sewage pump according to claim 5, wherein: one side of the oil seal body (311) facing the ceramic shaft sleeve (4) is provided with a seal lip (3111), a lip waist part (3112) and a dust lip (3113) in sequence.

7. A submersible sewage pump is characterized in that: including the pump body (1), set up driving motor (2) on the pump body (1), be provided with hydro-cylinder (3) between the pump body (1) and driving motor (2), coaxial pivot (21) that is provided with on the motor shaft of driving motor (2), hydro-cylinder (3) are worn to establish and the pump body (1) is gone into in pivot (21) length direction's one end, one side that hydro-cylinder (3) were towards the pump body (1) is provided with hydro-cylinder lid (32), still includes any requirement in the claim 1-6 stealthily dirty pump sand control structure, among the stealthily dirty pump sand control structure ceramic axle sleeve (4) are located one side that hydro-cylinder lid (32) were towards the pump body (1).

8. A submersible sewage pump as recited in claim 7, further comprising: the oil cylinder cover is characterized by further comprising a connecting bolt (6), wherein one end of the connecting bolt (6) penetrates through the oil cylinder cover (32) and is in threaded connection with the pump body (1).

9. The submersible sewage pump of claim 7, wherein: one side of the pump body (1) towards the oil cylinder cover (32) is provided with a sealing groove (12), a sealing ring (121) is arranged in the sealing groove (12), and the pump body (1) abuts against the oil cylinder cover (32) through the sealing ring (121) to form sealing.