CN215890565U

CN215890565U - Immersible pump bearing frame subassembly

Info

Publication number: CN215890565U
Application number: CN202122263859.XU
Authority: CN
Inventors: 陈贤元; 刘伟
Original assignee: Taizhou Jiadi Pump Industry Co ltd
Current assignee: Taizhou Jiadi Pump Industry Co ltd
Priority date: 2021-09-17
Filing date: 2021-09-17
Publication date: 2022-02-22
Anticipated expiration: 2031-09-17

Abstract

The utility model provides a submersible pump bearing seat assembly, and belongs to the technical field of water pumps. It has solved the current not good problem of bearing frame life-span. This immersible pump bearing frame subassembly is including the body that possesses the centre bore, be equipped with annular step one on the inner wall of centre bore upper end, annular step one comprises annular lateral wall and annular diapire, from the top down is equipped with angular contact ball bearing and radial ball bearing in proper order in the annular step one, be equipped with the packing ring between angular contact ball bearing and the radial ball bearing, angular contact ball bearing and radial ball bearing's outer lane all links firmly with annular lateral wall, the packing ring both ends face is pressed respectively on angular contact ball bearing outer lane and radial ball bearing outer lane, radial ball bearing outer lane diapire is pressed on annular diapire, be equipped with the limit structure who is used for restricting angular contact ball bearing and shifts up on the body, and limit structure effect is on angular contact ball bearing outer lane. The submersible pump bearing block assembly is long in service life.

Description

Immersible pump bearing frame subassembly

Technical Field

The utility model belongs to the technical field of water pumps, and relates to a submersible pump, in particular to a bearing seat assembly of the submersible pump.

Background

The submersible pump is an important device for pumping water from a deep well, when in use, the whole unit is submerged into water to work, and the underground water is pumped to the ground surface, so that the submersible pump is used for domestic water, mine emergency rescue, industrial cooling, farmland irrigation, seawater lifting and ship load regulation, and can also be used for fountain landscape.

An existing submersible pump motor is generally supported by a bearing seat with a bearing, for example, a bearing mounting structure (application number: 201921912098.2) of a solar sewage pump disclosed in the chinese patent library includes a motor and a pump head which are mutually matched, a bearing seat is arranged at a head of the motor and a bearing is mounted, a circular pressing plate is fixed on an end surface of the bearing seat by a screw, an inner ring of the pressing plate protrudes downwards near a central shaft hole to form a circle of positioning strip in a spherical structure, and the bottom of the positioning strip abuts against an outer ring of the bearing.

In the above mounting structure, the bearing generally adopts a deep groove ball bearing, and the bearing of the type has weak load capacity and is easy to damage when used in a submersible pump with high lift.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems in the prior art and provides a submersible pump bearing seat assembly with high load bearing capacity.

The purpose of the utility model can be realized by the following technical scheme: immersible pump bearing frame subassembly, including the body that possesses the centre bore, be equipped with annular step one on the inner wall of centre bore upper end, annular step one comprises annular lateral wall and annular diapire, a serial communication port, from the top down is equipped with angular contact ball bearing and radial ball bearing in proper order in the annular step one, be equipped with the packing ring between angular contact ball bearing and the radial ball bearing, angular contact ball bearing, radial ball bearing, four coaxial arrangements of packing ring and centre bore, angular contact ball bearing and radial ball bearing's outer lane all links firmly with annular lateral wall, the packing ring both ends face is pressed respectively on angular contact ball bearing outer lane and radial ball bearing outer lane, radial ball bearing outer lane diapire is pressed on annular diapire, be equipped with the limit structure who is used for restricting angular contact ball bearing and shifts up on the body, and limit structure is used for on angular contact ball bearing outer lane.

The angular contact ball bearings and the radial ball bearings are arranged in the central hole in parallel up and down, so that the whole bearing seat assembly has strong axial and radial load capacity, and can not only stably bear large radial and axial force generated when the motor operates, but also effectively inhibit the upward movement of a rotor when the motor is just started, thereby effectively enhancing the support stability of the motor, improving the working stability of the submersible pump and prolonging the service life of the submersible pump.

Meanwhile, the angular ball bearing is arranged below the angular ball bearing, so that the angular ball bearing bears most of axial force generated by the upward movement tendency of the rotor when the motor is started, the transmission of the axial force to the angular ball bearing is effectively reduced, the protection effect is achieved, and the service life of the whole bearing seat assembly is prolonged.

In the submersible pump bearing block assembly, the outer rings of the angular contact ball bearing and the radial ball bearing are fixedly connected with the annular side wall in an interference fit mode, and the submersible pump bearing block assembly has the advantages of being simple in structure and convenient to install.

In the submersible pump bearing seat assembly, the inner wall of the central hole, which is positioned at the upper orifice, is a first conical surface which is always radially and gradually reduced downwards, and the outer wall of the outer ring of the angular contact ball bearing is provided with a second conical surface matched with the first conical surface, and the first conical surface is in close contact with the second conical surface. The first conical surface and the second conical surface are matched and used for correcting the position of the angular contact ball bearing, so that the angular contact ball bearing and the radial ball bearing are always linearly distributed, and the structural stability of the bearing seat assembly is improved.

In the submersible pump bearing seat assembly, the upper end of the outer ring of the angular contact ball bearing extends out of the central hole, so that the angular contact ball bearing is convenient to mount.

In foretell submersible pump bearing frame subassembly, limit structure is including the clamping ring of cover outside angular contact ball bearing, and the clamping ring links firmly with the body, is equipped with on angular contact ball bearing's the outer lane and supplies the clamping ring to support and press at the annular face, and the annular face is coaxial with angular contact ball bearing, and the annular face is in between clamping ring and the packing ring.

In foretell submersible pump bearing frame subassembly, the clamping ring sticiss on the body roof, and the clamping ring links firmly with the body through the screw that the round distributes along body circumference, has simple structure, simple to operate's advantage.

As another scheme, in the submersible pump bearing block assembly, the pressing ring is fixedly connected with the body in a welding mode.

In the submersible pump bearing seat assembly, the outer wall of the outer ring of the angular contact ball bearing is provided with the second annular step, the bottom wall of the second annular step is the annular surface, an annular groove is formed between the second annular step and the first conical surface, the pressing ring extends towards the direction of the annular groove and is integrally formed with the annular part, and the annular part is pressed on the annular surface. The contact position of clamping ring and angular contact ball bearing is in the centre bore, can effectively avoid outside to the interference of above-mentioned position, ensures that the clamping ring steadily pushes down angular contact ball bearing, and structural stability is better.

In foretell submersible pump bearing frame subassembly, the lateral wall of ring portion is the conical surface three that matches with conical surface one, and conical surface one pastes with conical surface three phase and leans on for the clamping ring installation direction makes the clamping ring once only remove and targets in place, the equipment of being convenient for.

As another scheme, in the submersible pump bearing block assembly, the limiting structure comprises a first insertion hole radially formed in the outer wall of the outer ring of the angular contact ball bearing, a threaded hole is correspondingly formed in the body, a bolt is screwed in the threaded hole, and the rod part of the bolt is inserted into the first insertion hole.

Compared with the prior art, this immersible pump bearing frame subassembly has following advantage:

1. the angular contact ball bearings and the radial ball bearings are arranged in the central hole in parallel up and down, so that the whole bearing seat assembly has strong axial and radial load capacity, and can not only stably bear large radial and axial force generated when the motor operates, but also effectively inhibit the upward movement of a rotor when the motor is just started, thereby effectively enhancing the support stability of the motor, improving the working stability of the submersible pump and prolonging the service life of the submersible pump.

2. The angular ball bearing is arranged below the angular ball bearing, so that the angular ball bearing bears most of axial force generated by the upward movement tendency of the rotor when the motor is started, the transmission of the axial force to the angular ball bearing is effectively reduced, the protection effect is achieved, and the service life of the whole bearing seat assembly is prolonged.

3. The first conical surface and the second conical surface are matched and used for correcting the position of the angular contact ball bearing, so that the angular contact ball bearing and the radial ball bearing are always linearly distributed, and the structural stability of the bearing seat assembly is improved.

Drawings

Fig. 1 is a schematic structural view of a bearing seat assembly of a submersible pump.

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

Fig. 3 is a schematic structural view of an angular contact ball bearing.

Fig. 4 is a schematic structural view of the body.

In the figure, 1, a body; 1a, a central hole; 1a1, a first conical surface; 1b, a pipe body; 1c, a ring body; 1d, bolt holes; 1e, a first annular step; 1e1, annular sidewall; 1e2, annular bottom wall; 2. angular contact ball bearings; 2a, a second conical surface; 2b, an annular surface; 3. a radial ball bearing; 4. a gasket; 5. pressing a ring; 5a, a ring part; 5a1 and a conical surface III; 6. and (4) screws.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, the bearing seat assembly for the submersible pump comprises a body 1 with a central hole 1a, wherein in an actual product, the body 1 is composed of a pipe body 1b and a ring body 1c formed on the outer wall of the pipe body 1b, wherein an inner hole of the pipe body 1b is the central hole 1 a; the axial cross section of the ring body 1c is L-shaped, an annular concave cavity is formed between the ring body 1c and the pipe body 1b, and a bolt hole 1d is formed in the bottom wall of the annular concave cavity and used for positioning the body 1.

In particular, the present invention relates to a method for producing,

as shown in fig. 1 and 4, the inner wall of the upper end of the central hole 1a is provided with an annular step 1e, the annular step 1e is arranged coaxially with the central hole 1a, and the annular step 1e is composed of an annular side wall 1e1 and an annular bottom wall 1e 2. The first annular step 1e is internally provided with an angular contact ball bearing 2 and a radial ball bearing 3 from top to bottom in sequence, a gasket 4 is arranged between the angular contact ball bearing 2 and the radial ball bearing 3, and the angular contact ball bearing 2, the radial ball bearing 3, the gasket 4 and the central hole 1a are coaxially arranged.

The angular contact ball bearing 2 and the radial ball bearing 3 are both existing products, and the structures thereof are public technologies and will not be described in detail here. The angular contact ball bearing 2 and the radial ball bearing 3 both comprise outer rings, and the outer ring of the angular contact ball bearing 2 and the outer ring of the radial ball bearing 3 are fixedly connected with the annular side wall 1e 1. In the present embodiment, preferably, the outer rings of the angular contact ball bearing 2 and the radial ball bearing 3 are fixedly connected with the annular side wall 1e1 by interference fit. As shown in fig. 1, two end faces of the washer 4 are respectively pressed on the bottom wall of the outer ring of the angular contact ball bearing 2 and the top wall of the outer ring of the radial ball bearing 3, the bottom wall of the outer ring of the radial ball bearing 3 is pressed on the annular bottom wall 1e2, the body 1 is provided with a limiting structure for limiting the angular contact ball bearing 2 to move upwards, and the limiting structure acts on the outer ring of the angular contact ball bearing 2.

The angular contact ball bearings 2 and the radial ball bearings 3 are arranged in the central hole 1a in parallel up and down, so that the whole bearing seat assembly has strong axial and radial load capacity, and can not only stably bear large radial and axial force generated when the motor operates, but also effectively inhibit the upward movement of a rotor when the motor is just started, thereby effectively enhancing the support stability of the motor, improving the working stability and prolonging the service life of the submersible pump.

In the present embodiment, it is preferred that,

as shown in fig. 2 and fig. 3, the limiting structure includes a pressing ring 5 sleeved outside the angular contact ball bearing 2, the pressing ring 5 is fixedly connected with the body 1, the outer ring of the angular contact ball bearing 2 is provided with a pressing ring 5 which is pressed against the annular surface 2b, the annular surface 2b is coaxial with the angular contact ball bearing 2, and the annular surface 2b is located between the pressing ring 5 and the gasket 4.

The clamping ring 5 is tightly pressed on the top wall of the body 1, and the clamping ring 5 is fixedly connected with the body 1 through a circle of screws 6 distributed along the circumferential direction of the body 1, so that the clamping ring has the advantages of simple structure and convenience in installation. Naturally, it is also possible that the pressing ring 5 and the body 1 are fixedly connected by welding.

For a further explanation,

the upper end of the outer ring of the angular contact ball bearing 2 extends out of the central hole 1a, so that the angular contact ball bearing 2 is convenient to mount.

The inner wall of the central hole 1a at the upper hole opening is a conical surface I1 a1, the diameter of the conical surface I1 a1 is gradually reduced downwards, a conical surface II 2a matched with the conical surface I1 a1 is arranged on the outer wall of the outer ring of the angular contact ball bearing 2, the conical surface I1 a1 is in close contact with the conical surface II 2a, the position of the angular contact ball bearing 2 is corrected, the angular contact ball bearing 2 and the radial ball bearing 3 are ensured to be always in linear distribution, and the structural stability of the bearing seat assembly is improved.

An annular step II is arranged on the outer wall of the outer ring of the angular contact ball bearing 2, the bottom wall of the annular step II is the annular surface 2b, an annular groove is formed between the annular step II and the conical surface 1a1, the pressing ring 5 extends towards the annular groove direction to form an integrally-formed ring part 5a, and the ring part 5a is pressed on the annular surface 2b so as to hide the contact position of the pressing ring 5 and the angular contact ball bearing 2 and avoid the interference of the outside on the position. The outer side wall of the ring part 5a is a conical surface III 5a1 matched with the conical surface I1 a1, and the conical surface I1 a1 is attached to the conical surface III 5a1 and used for installing and guiding the pressing ring 5, so that the pressing ring 5 can move in place at one time and is convenient to assemble.

Example two

The structure and principle of the second embodiment are the same as those of the first embodiment, and different points are as follows: the limiting structure comprises a first insertion hole radially formed in the outer wall of the outer ring of the angular contact ball bearing 2, a threaded hole is correspondingly formed in the body 1, a bolt is connected in the threaded hole in a screwed mode, and the rod portion of the bolt is inserted into the first insertion hole.

The specific embodiments described herein are merely illustrative of the spirit of the utility model. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the utility model as defined in the appended claims.

Claims

1. A submersible pump bearing seat assembly comprises a body (1) with a center hole (1a), wherein a first annular step (1e) is arranged on the inner wall of the upper end of the center hole (1a), the first annular step (1e) is composed of an annular side wall (1e1) and an annular bottom wall (1e2), and is characterized in that an angular contact ball bearing (2) and a radial ball bearing (3) are sequentially arranged in the first annular step (1e) from top to bottom, a gasket (4) is arranged between the angular contact ball bearing (2) and the radial ball bearing (3), the angular contact ball bearing (2), the radial ball bearing (3), the gasket (4) and the center hole (1a) are coaxially arranged, the outer rings of the angular contact ball bearing (2) and the radial ball bearing (3) are fixedly connected with the annular side wall (1e1), and two end faces of the gasket (4) are respectively pressed on the outer ring of the angular contact ball bearing (2) and the radial ball bearing (3), the bottom wall of the outer ring of the radial ball bearing (3) is pressed on the annular bottom wall (1e2), the body (1) is provided with a limiting structure used for limiting the angular contact ball bearing (2) to move upwards, and the limiting structure acts on the outer ring of the angular contact ball bearing (2).

2. The bearing block assembly according to claim 1, characterized in that the outer rings of the angular contact ball bearing (2) and the radial ball bearing (3) are fixedly connected with the annular side wall (1e1) by interference fit.

3. The bearing seat assembly for the submersible pump according to claim 2, characterized in that the inner wall of the central hole (1a) at the upper hole opening is a first conical surface (1a1), the diameter of the first conical surface (1a1) is gradually reduced downwards, a second conical surface (2a) matched with the first conical surface (1a1) is arranged on the outer wall of the outer ring of the angular contact ball bearing (2), and the first conical surface (1a1) is tightly contacted with the second conical surface (2 a).

4. A submersible pump bearing housing assembly according to claim 2 or 3, characterized in that the upper end of the outer ring of the angular contact ball bearing (2) protrudes out of the central bore (1 a).

5. The submersible pump bearing seat assembly according to claim 3, wherein the limiting structure comprises a pressing ring (5) sleeved outside the angular contact ball bearing (2), the pressing ring (5) is fixedly connected with the body (1), the outer ring of the angular contact ball bearing (2) is provided with a pressing ring (5) which is pressed against the annular surface (2b), the annular surface (2b) is coaxial with the angular contact ball bearing (2), and the annular surface (2b) is positioned between the pressing ring (5) and the gasket (4).

6. A bearing block assembly for a submersible pump according to claim 5, characterized in that the pressure ring (5) is pressed against the top wall of the body (1) and in that the pressure ring (5) is secured to the body (1) by a ring of screws (6) distributed circumferentially along the body (1).

7. A bearing housing assembly for a submersible pump according to claim 5, characterized in that the pressure ring (5) and the body (1) are fixedly connected by welding.

8. The bearing seat assembly for the submersible pump according to claim 5 or 6, characterized in that a second annular step is arranged on the outer wall of the outer ring of the angular contact ball bearing (2), the bottom wall of the second annular step is the annular surface (2b), an annular groove is formed between the second annular step and the first conical surface (1a1), the pressing ring (5) extends towards the annular groove to form an integrally-formed ring part (5a), and the ring part (5a) presses on the annular surface (2 b).

9. The bearing block assembly according to claim 8, wherein the outer side wall of the ring portion (5a) is a tapered surface three (5a1) matching with the tapered surface one (1a1), and the tapered surface one (1a1) abuts against the tapered surface three (5a 1).

10. The submersible pump bearing seat assembly according to claim 2, wherein the limiting structure comprises a first insertion hole radially formed in the outer wall of the outer ring of the angular contact ball bearing (2), a threaded hole is correspondingly formed in the body (1), a bolt is screwed in the threaded hole, and the rod part of the bolt is inserted into the first insertion hole.