Multi-stage centrifugal pump bearing device

Abstract

The utility model belongs to the technical field of multi-stage centrifugal pump bearings, and particularly relates to a multi-stage centrifugal pump bearing device which comprises a box body. The device comprises a box body, a threaded rod, a rotating wheel, two threaded sleeves, two supporting rods, a supporting plate and a bearing, the threaded rod is rotatably connected to the inner wall of the box body, the left side of the threaded rod extends to the outside of the box body, the rotating wheel is fixedly connected to the left side of the threaded rod, the number of the threaded sleeves and the number of the supporting rods are both two, and the supporting plate is slidably connected to the inner wall of the box body; the supporting rod is conveniently driven to move through rotation of the rotating wheel, so that the supporting plate is pushed to enable the bearing to move up and down, the effect of conveniently taking the bearing is achieved, the rotating wheel is conveniently fixed through the clamping block, and the rotating wheel can be conveniently taken out through the clamping block. And the situation that the bearing moves due to rotation of the threaded rod caused by vibration, mistaken touch and the like is prevented, and high practicability is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of multi-stage centrifugal pump bearings, in particular to a multi-stage centrifugal pump bearing device. Background Art

[0002] The utility model with announcement number: CN208073850U discloses a multi-stage centrifugal pump bearing device, whose structure includes a bearing, a protection box, a fixed support leg, and a sealing ring. The outer surface of the bearing is installed on the inner surface of the protection box and is clearance-matched. The protection box includes a fixed block, a rivet, a limit groove, an outer shell, a left fixed plate, a torsion spring, a right fixed plate, a top cover, a locking column, a limit block, a rotating shaft, and a protective sleeve. The right surface of the fixed block is bonded to the left surface of the outer shell. The utility model discloses a multi-stage centrifugal pump bearing device, wherein the fixed support leg is installed and fixed in a suitable position, the rivet is pulled out, the torsion spring drives the top cover to pop open, the outer steel ring is placed in the limit groove, the top cover is covered, the limit block is inserted into the inner steel ring, the locking column is inserted into the fixed block, the rivet locks the locking column, and the outer shell protects the bearing. The bearing is not easy to collide during transportation, thereby reducing the damage of the bearing.

[0003] However, the above technical solution lacks the function of lifting the bearing, which will cause the bearing to be embedded in the box when it is stored, making it difficult to remove the bearing, which makes it inconvenient to use. Therefore, we propose a multi-stage centrifugal pump bearing device to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the prior art lacks the function of lifting and lowering the bearing, which will cause the bearing to be embedded in the box when it is stored, making it difficult to remove the bearing, thereby causing inconvenience in use, and a multi-stage centrifugal pump bearing device is proposed.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A multi-stage centrifugal pump bearing device, including a housing;

[0007] A threaded rod, a rotating wheel, a threaded sleeve, a support rod, a support plate and a bearing, wherein the threaded rod is rotatably connected to the inner wall of the box, and the left side of the threaded rod extends to the outside of the box, the rotating wheel is fixedly connected to the left side of the threaded rod, the threaded sleeve and the support rod are both two in number, the support plate is slidably connected to the inner wall of the box, the bearing is movably connected to the top of the support plate, the two threaded sleeves are symmetrically threadedly connected to the outer wall of the threaded rod, the two support rods are rotatably connected to the front sides of the corresponding threaded sleeves, and the tops of the two support rods are rotatably connected to the bottoms of the corresponding support plates;

[0008] A connecting plate and a card block, wherein the connecting plate is slidably connected to the left side of the box body, the card block is fixedly connected to the bottom of the connecting plate, and a plurality of card slots are evenly spaced on the outer wall of the rotating wheel, and the card slots are arranged in a ring shape, and the card slots are adapted to the corresponding card blocks;

[0009] A limiting mechanism is connected to the clamping block, and the limiting mechanism is used to fix or unlock the rotating wheel.

[0010] As a preferred solution of the utility model, the limiting mechanism includes a push plate, a push rod, a lifting rod and a fixed plate;

[0011] The fixed plate is fixedly connected to the left side of the box body, the push plate is slidably connected to the top of the fixed plate, the push rod is rotatably connected to the front side of the push plate, the lifting rod is slidably connected to the left side of the box body, and the lifting rod passes through the fixed plate, the front side of the lifting rod is rotatably connected to the rear side of the push rod, and the bottom of the lifting rod is fixedly connected to the top of the connecting plate.

[0012] As a preferred solution of the utility model, the inner wall of the box body is fixedly connected with a support frame, and the top of the support frame is in movable contact with the bottom of the support plate.

[0013] As a preferred solution of the utility model, the top of the support plate is fixedly connected to a limiting ring, and the inner wall of the limiting ring is matched with the outer wall of the bearing.

[0014] As a preferred solution of the utility model, a push spring is fixedly connected to the top of the connecting plate, and the top of the push spring is fixedly connected to the bottom of the fixed plate.

[0015] As a preferred solution of the utility model, the fixed plate is a hollow structure, the inner wall of the fixed plate is fixedly connected with a slide rail, the outer wall of the slide rail is slidably connected with a slider, and the top of the slider is fixedly connected to the bottom of the push plate.

[0016] Beneficial effects:

[0017] 1. The rotating wheel can be used to drive the threaded rod to rotate, and the threaded sleeve can be moved by rotating the threaded rod, thereby driving the support rod to move, and the support plate can be moved up by the support rod, thereby driving the bearing to move up, so as to remove the bearing;

[0018] 2. Push the push plate to move right. When the push plate moves, it will push the push rod. At this time, the push rod will push the lifting rod upward. The movement of the lifting rod will drive the connecting plate upward and drive the card block upward to disengage from the card slot, thereby unlocking the rotating wheel. By fixing the rotating wheel, the threaded rod and the rotating wheel remain stable when not in use, preventing the threaded rod from rotating due to vibration, accidental touch, etc.

[0019] The utility model conveniently drives the support rod to move by rotating the rotating wheel, thereby pushing the support plate to move the bearing up and down, realizing the effect of facilitating the taking of the bearing. The rotating wheel is conveniently fixed by the clamping block to prevent the threaded rod from rotating and causing the bearing to move due to vibration, accidental touch, etc., and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front cross-sectional view of the utility model;

[0021] Figure 2 The utility model is attached Figure 1 The structural diagram of part A in the figure;

[0022] Figure 3 It is a three-dimensional diagram of the threaded sleeve and the support rod of the utility model;

[0023] Figure 4 It is a three-dimensional diagram of the lifting rod, the connecting plate and the clamping block of the utility model.

[0024] In the figure: 1. box body; 2. threaded rod; 3. rotating wheel; 4. threaded sleeve; 5. support rod; 6. support plate; 7. push plate; 8. push rod; 9. lifting rod; 10. fixing plate; 11. pushing spring; 12. connecting plate; 13. block; 14. bearing. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0026] Example

[0027] Reference Figure 1-Figure 4 , a multistage centrifugal pump bearing device, comprising a housing 1;

[0028] Threaded rod 2, rotating wheel 3, threaded sleeve 4, support rod 5, support plate 6 and bearing 14, the threaded rod 2 is rotatably connected to the inner wall of the box body 1, and the left side of the threaded rod 2 extends to the outside of the box body 1, the rotating wheel 3 is fixedly connected to the left side of the threaded rod 2, the number of threaded sleeves 4 and support rod 5 is two, the support plate 6 is slidably connected to the inner wall of the box body 1, the bearing 14 is movably connected to the top of the support plate 6, the two threaded sleeves 4 are symmetrically threadedly connected to the outer wall of the threaded rod 2, the two support rods 5 are rotatably connected to the front side of the corresponding threaded sleeves 4, and the tops of the two support rods 5 are rotatably connected to the bottoms of the corresponding support plates 6;

[0029] The connecting plate 12 and the card block 13, the connecting plate 12 is slidably connected to the left side of the box body 1, the card block 13 is fixedly connected to the bottom of the connecting plate 12, and the outer wall of the rotating wheel 3 is provided with a plurality of card slots at equal intervals, and the card slots are arranged in a ring shape, and the card slots are adapted to the corresponding card blocks 13;

[0030] The limiting mechanism is connected to the clamping block 13 and is used to fix or unlock the rotating wheel 3 .

[0031] By means of the above mechanism: the rotating wheel 3 can conveniently drive the threaded rod 2 to rotate, and the threaded sleeve 4 can be conveniently moved by the rotation of the threaded rod 2, thereby driving the support rod 5 to move, and the support plate 6 can be conveniently moved upward by the support rod 5, thereby driving the bearing 14 to move upward, so as to remove the bearing 14.

[0032] As a preferred solution of the utility model, the limiting mechanism includes a push plate 7, a push rod 8, a lifting rod 9 and a fixed plate 10; the fixed plate 10 is fixedly connected to the left side of the box body 1, the push plate 7 is slidably connected to the top of the fixed plate 10, the push rod 8 is rotatably connected to the front side of the push plate 7, the lifting rod 9 is slidably connected to the left side of the box body 1, and the lifting rod 9 passes through the fixed plate 10, the front side of the lifting rod 9 is rotatably connected to the rear side of the push rod 8, and the bottom of the lifting rod 9 is fixedly connected to the top of the connecting plate 12. By pushing the push plate 7 to move right, when the push plate 7 moves, the push rod 8 will be pushed. At this time, the push rod 8 will push the lifting rod 9 to move up. The movement of the lifting rod 9 will drive the connecting plate 12 to move up and drive the card block 13 to move up and disengage from the card slot, thereby unlocking the rotating wheel 3. By fixing the rotating wheel 3, the threaded rod 2 and the rotating wheel 3 remain stable when not in use, preventing the threaded rod 2 from rotating due to vibration, accidental touch, etc.

[0033] As a preferred solution of the utility model, a support frame is fixedly connected to the inner wall of the box body 1, and the top of the support frame is in movable contact with the bottom of the support plate 6. The support frame facilitates the support plate 6 to maintain stability inside the box body 1.

[0034] As a preferred solution of the utility model, the top of the support plate 6 is fixedly connected to a limiting ring, and the inner wall of the limiting ring is adapted to the outer wall of the bearing 14. The limiting ring is used to conveniently limit the bearing 14 to prevent the box body 1 from shaking and causing the bearing 14 to shake and collide.

[0035] As a preferred solution of the utility model, the top of the connecting plate 12 is fixedly connected with a push spring 11, and the top of the push spring 11 is fixedly connected to the bottom of the fixed plate 10. Through the elastic force of the push spring 11, the fixed plate 10 is conveniently pushed down and reset.

[0036] As a preferred solution of the utility model, the fixed plate 10 is a hollow structure, the inner wall of the fixed plate 10 is fixedly connected with a slide rail, the outer wall of the slide rail is slidably connected with a slider, the top of the slider is fixedly connected to the bottom of the push plate 7, and through the cooperation of the slider and the slide rail, the push plate 7 can be conveniently restricted so that the push plate 7 can move stably laterally.

[0037] The working principle of the utility model is as follows: in actual use, the top of the box body 1 is rotatably connected with a box cover, and the box cover is fixed or unlocked with the box body 1 by a lock. When the bearing 14 needs to be stored, the lock is first opened and the box cover is rotated. At this time, the bearing 14 can be placed on the top of the support plate 6, and the limiting ring is aligned with the bearing 14 to limit the bearing 14 so that the bearing 14 can be kept stable during transportation. At this time, the lock hook is closed and locked to fix the box cover, thereby protecting the bearing 14. When the bearing 14 needs to be taken out, the box cover is first opened, and the push plate 7 is pushed to move right. When When the push plate 7 moves, it will push the push rod 8, and at this time the push rod 8 will push the lifting rod 9 upward. The movement of the lifting rod 9 will drive the connecting plate 12 to move upward and compress the push spring 11. At the same time, the connecting plate 12 drives the card block 13 to move upward and disengage from the card slot, thereby unlocking the rotating wheel 3. At this time, the rotating wheel 3 can be rotated. When the rotating wheel 3 rotates, it will drive the two threaded sleeves 4 to move toward each other and push the support rod 5. The movement of the support rod 5 will push the support plate 6 upward. The movement of the support plate 6 will drive the bearing 14 to move to the outside of the box body 1, thereby facilitating the removal of the bearing 14.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multistage centrifugal pump bearing device, characterized in that: include Box body (1); A threaded rod (2), a rotating wheel (3), a threaded sleeve (4), a support rod (5), a support plate (6) and a bearing (14), wherein the threaded rod (2) is rotatably connected to the inner wall of the box body (1), and the left side of the threaded rod (2) extends to the outside of the box body (1), the rotating wheel (3) is fixedly connected to the left side of the threaded rod (2), the threaded sleeve (4) and the support rod (5) are both two in number, the support plate (6) is slidably connected to the inner wall of the box body (1), the bearing (14) is movably connected to the top of the support plate (6), the two threaded sleeves (4) are symmetrically threadedly connected to the outer wall of the threaded rod (2), the two support rods (5) are rotatably connected to the front side of the corresponding threaded sleeves (4), and the tops of the two support rods (5) are rotatably connected to the bottoms of the corresponding support plates (6); A connecting plate (12) and a card block (13), wherein the connecting plate (12) is slidably connected to the left side of the box body (1), and the card block (13) is fixedly connected to the bottom of the connecting plate (12), and a plurality of card slots are formed on the outer wall of the rotating wheel (3) at equal intervals, and the card slots are arranged in a ring shape, and the card slots are adapted to the corresponding card blocks (13); A limiting mechanism is connected to the clamping block (13), and is used to fix or unlock the rotating wheel (3).

2. The multistage centrifugal pump bearing device according to claim 1, characterized in that: The limiting mechanism comprises a push plate (7), a push rod (8), a lifting rod (9) and a fixing plate (10); The fixed plate (10) is fixedly connected to the left side of the box body (1), the push plate (7) is slidably connected to the top of the fixed plate (10), the push rod (8) is rotatably connected to the front side of the push plate (7), the lifting rod (9) is slidably connected to the left side of the box body (1), and the lifting rod (9) passes through the fixed plate (10), the front side of the lifting rod (9) is rotatably connected to the rear side of the push rod (8), and the bottom of the lifting rod (9) is fixedly connected to the top of the connecting plate (12).

3. The multi-stage centrifugal pump bearing device according to claim 1, characterized in that: The inner wall of the box body (1) is fixedly connected with a support frame, and the top of the support frame is in movable contact with the bottom of the support plate (6).

4. The multi-stage centrifugal pump bearing device according to claim 1, characterized in that: The top of the support plate (6) is fixedly connected to a limiting ring, and the inner wall of the limiting ring is matched with the outer wall of the bearing (14).

5. The multi-stage centrifugal pump bearing device according to claim 2, characterized in that: The top of the connecting plate (12) is fixedly connected to a push spring (11), and the top of the push spring (11) is fixedly connected to the bottom of the fixing plate (10).

6. The multi-stage centrifugal pump bearing device according to claim 2, characterized in that: The fixed plate (10) is a hollow structure, the inner wall of the fixed plate (10) is fixedly connected to a slide rail, the outer wall of the slide rail is slidably connected to a slider, and the top of the slider is fixedly connected to the bottom of the push plate (7).

Images