CN218266468U

CN218266468U - Bearing bracket of double-suction pump

Info

Publication number: CN218266468U
Application number: CN202123251890.8U
Authority: CN
Inventors: 李莹光; 李平洲; 邴晓琪; 支发林
Original assignee: Wilo China Water Pump System Co Ltd
Current assignee: Wilo China Water Pump System Co Ltd
Priority date: 2021-12-22
Filing date: 2021-12-22
Publication date: 2023-01-10
Anticipated expiration: 2031-12-22

Abstract

The utility model relates to a bearing bracket of double entry pump belongs to the field of pump, double entry pump includes the pump body and the pump cover through bolt rigid coupling, be provided with the pump shaft between the pump body and the pump cover, install the bearing on the pump shaft, bearing bracket is including the main part that is used for support bearing, be provided with the second connecting portion that are used for connecting the first connecting portion of the pump body and are used for connecting the lid in the main part. This application has the effect of reinforcing double entry pump operating stability.

Description

Bearing bracket of double-suction pump

Technical Field

The present application relates to the field of pumps, and more particularly, to bearing brackets for double suction pumps.

Background

The double suction pump is an important form of the centrifugal pump, and is widely applied to engineering due to the characteristics of high lift, large flow and the like. The double suction means a suction mode of an impeller, and the impeller of the double suction pump is generally an impeller with suction ports on both sides or two single-stage impellers arranged back to back. The double suction pump has the following characteristics: the double-suction pump is equivalent to two single-suction impellers with the same diameter to work simultaneously, and the flow can be doubled under the same impeller outer diameter; the pump shell consists of a pump body and a pump cover which are connected by bolts, so that the inspection and the maintenance are convenient, and meanwhile, the inlet and the outlet of the double-suction pump are in the same direction and are vertical to the pump shaft, thereby being beneficial to the arrangement and the installation of the pump and the water inlet and outlet pipes; the impeller structure of the double suction pump is symmetrical, almost no axial force exists, and the operation is stable; both ends of the double suction pump shaft are provided with bearings, so that the structural stability is good.

In view of the above-mentioned related art, the inventor believes that the bearing bracket of the double suction pump for supporting the bearing is usually fixed on the pump body, which is liable to cause unstable operation.

SUMMERY OF THE UTILITY MODEL

In order to strengthen the stability of double suction pump operation, this application provides a bearing bracket of double suction pump.

The application provides a bearing bracket of double entry pump adopts following technical scheme:

the bearing bracket of double entry pump, double entry pump includes the pump body and the pump cover through bolt rigid coupling, be provided with the pump shaft between the pump body and the pump cover, install the bearing on the pump shaft, the bearing bracket is including the main part that is used for supporting bearing, be provided with the second connecting portion that are used for connecting the first connecting portion of the pump body and are used for connecting the lid in the main part.

By adopting the technical scheme, the bearing bracket is fixedly connected with the pump body through the bolt, and the bearing bracket is also fixedly connected with the pump cover through the bolt, so that the stability of the bearing bracket is improved, the running stability of the double-suction pump is enhanced, the vibration and the noise of the double-suction pump during running are reduced, and the service life of the double-suction pump is prolonged.

Optionally, a third spigot is arranged on the first connecting portion, a fourth spigot is arranged on the second connecting portion, and the third spigot and the fourth spigot are matched with each other to position the bearing bracket on the double-suction pump.

By adopting the technical scheme, when the bearing bracket is installed, the pre-positioning of the bearing bracket is realized through the first spigot of the third spigot clamping pump body and the second spigot of the fourth spigot clamping pump cover, so that the worker can fix the bearing bracket on the double-suction pump through screws, and the installation efficiency of the bearing bracket is improved.

Optionally, the main body is also provided with a seam allowance structure, and the seam allowance structure on the main body is connected with the third seam allowance and the fourth seam allowance to form a circular seam allowance.

By adopting the technical scheme, the processing technology of the spigot structure on the bearing bracket is reduced.

Optionally, the main body is provided with a mounting groove for mounting a bearing, and a bearing cover is detachably mounted at a notch of the mounting groove.

Optionally, the bearing cover is provided with a fixing member for fixing the bearing, and when the bearing is mounted on the bearing bracket, the bearing is clamped between the bottom wall of the mounting groove and the fixing member.

By adopting the technical scheme, the stability of the bearing is enhanced.

Optionally, a yielding hole for the pump shaft to penetrate is formed in the bottom wall of the mounting groove.

Optionally, a water baffle is disposed on a side of the bearing cover facing away from the main body.

Through adopting above-mentioned technical scheme, when the mechanical seal of double entry pump takes place to leak, under the effect of blockking of breakwater, reduced liquid and got into the mounting groove, influence the possibility of bearing work.

Optionally, a vibration measurement interface is arranged on the bearing bracket.

By adopting the technical scheme, the vibration condition of the double suction pump during working is convenient to detect.

Optionally, a temperature measuring interface is arranged on the bearing bracket.

By adopting the technical scheme, the temperature condition of the double suction pump during working is convenient to detect.

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

1. the bearing bracket is fixedly connected with the pump body through a bolt, and the bearing bracket is also fixedly connected with the pump cover through a bolt, so that the stability of the bearing bracket is increased, the running stability of the double-suction pump is enhanced, the vibration and the noise of the double-suction pump during running are reduced, and the service life of the double-suction pump is prolonged;

2. when the bearing bracket is installed, the first spigot of the pump body is clamped through the third spigot, and the second spigot of the pump cover is clamped through the fourth spigot, so that the pre-positioning of the bearing bracket is realized, workers can conveniently fix the bearing bracket on the double-suction pump through screws, and the installation efficiency of the bearing bracket is improved;

3. the processing technology of the spigot structure on the bearing bracket is reduced.

Drawings

Fig. 1 is a schematic structural diagram of a bearing bracket of a double suction pump according to an embodiment of the present application.

Fig. 2 isbase:Sub>A sectional view taken along linebase:Sub>A-base:Sub>A of fig. 1.

Fig. 3 is an exploded view illustrating the structure of the bearing bracket.

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

Description of reference numerals: 1. a pump body; 11. a first extension arm; 111. a first spigot; 2. a pump cover; 21. a second extension arm; 211. a second spigot; 3. a pump shaft; 4. an impeller; 5. a bearing; 6. a main body; 61. a first connection portion; 611. a third spigot; 62. a second connecting portion; 621. a fourth spigot; 63. mounting grooves; 64. a hole of abdication; 65. a vibration measurement interface; 66. a temperature measurement interface; 7. a bearing cap; 71. perforating; 72. a fixing member; 8. a water baffle.

Detailed Description

The present application is described in further detail below with reference to figures 1-4.

The embodiment of the application discloses bearing bracket of double entry pump. Referring to fig. 1 and 2, the double suction pump includes a pump case and a rotating part disposed inside the pump case; the pump shell comprises a pump body 1 and a pump cover 2 which are fixedly connected together through bolts; the rotating component comprises a pump shaft 3 and an impeller 4 sleeved on the pump shaft 3. Pump shaft 3 rotates and sets up between pump body 1 and pump cover 2, and the both ends of pump shaft 3 all stand out in the pump case. Two opposite sides of the pump body 1 are respectively provided with a first extension arm 11, and the arrangement direction of the two first extension arms 11 is parallel to the length direction of the pump shaft 3; both sides that pump cover 2 carried on the back mutually all are provided with a second extension arm 21, and the direction of arranging of two second extension arms 21 is on a parallel with the length direction of pump shaft 3.

Referring to fig. 3 and 4, in the present embodiment, two sides of the double suction pump are provided with bearing brackets, and the two bearing brackets are respectively used for mounting the bearing 5 at the driving end of the pump shaft 3 and the bearing 5 at the non-driving end of the pump shaft 3. The two bearing brackets are similar in construction and will first be described for mounting the drive end bearing 5 of the pump shaft 3. The bearing bracket includes a main body 6 for mounting the bearing 5, a first connecting portion 61 provided on the main body 6 for connecting the pump body 1, and a second connecting portion 62 provided on the main body 6 for connecting the pump cover 2.

Referring to fig. 3 and 4, in particular, the first connection portion 61 and the second connection portion 62 are integrally formed on the main body 6. The first connecting portion 61 is provided with two through holes for bolts to pass through, and the second connecting portion 62 is also provided with two through holes for bolts to pass through. When the bearing bracket is mounted on the double suction pump, the first connecting portion 61 is fixedly coupled to the first extension arm 11 by two bolts. The second connecting portion 62 is fixedly connected to the second extension arm 21 through two bolts, so that the bearing bracket is fixedly connected to the pump body 1 and the pump cover 2, and the stability of the bearing bracket is enhanced.

Referring to fig. 3 and 4, a first spigot 111 is provided on one side of the end of the first extension arm 11 away from the pump body 1 and facing the second extension arm 21, a second spigot 211 is provided on one side of the end of the second extension arm 21 away from the pump cover 2 and facing the first extension arm 11, the first spigot 111 and the second spigot 211 are both arc-shaped, and the first spigot 111 and the second spigot 211 are located on the same circle. One side of the first connecting portion 61, which is used for abutting against the first extension arm 11, is provided with a third spigot 611, and the third spigot 611 is matched with the first spigot 111; one side of the second connecting portion 62 for abutting against the second extension arm 21 is provided with a fourth seam allowance 621, and the fourth seam allowance 621 is matched with the second seam allowance 211. In order to facilitate the processing of the upper stop structure of the bearing bracket, the main body 6 is also provided with two arc-shaped stop structures, and the third stop 611 is connected with the fourth stop 621 through the two arc-shaped stop structures to form a circular stop.

During the installation of the bearing bracket, the first seam allowance 111 is clamped through the third seam allowance 611, the second seam allowance 211 is clamped through the fourth seam allowance 621, the pre-positioning of the bearing bracket is realized, the worker can conveniently fix the bearing bracket on the double-suction pump through the bolt, and the installation efficiency of the bearing bracket is improved.

Referring to fig. 3 and 4, a mounting groove 63 for mounting the bearing 5 is formed in one side of the main body 6 on which the spigot structure is formed, the mounting groove 63 is a circular groove, and the diameter of the mounting groove 63 is matched with the outer diameter of the bearing 5. The diapire of mounting groove 63 is seted up one and is supplied the pump shaft 3 to wear to establish hole 64 of stepping down, and hole 64 of stepping down sets up with mounting groove 63 is coaxial. The main body 6 is provided with a bearing cover 7 on one side of the mounting groove 63, and the bearing cover 7 is of an annular plate-shaped structure. The perforation 71 that the middle part of bearing cap 7 wore to establish for supplying pump shaft 3, has still seted up four through-holes that supply the bolt to wear to establish on the bearing cap 7, and four through-holes are around perforation 71 a week evenly distributed, and the rigid coupling can be dismantled on main part 6 through four bolts to bearing cap 7. The through hole 71 is provided coaxially with the mounting groove 63 when the bearing cap 7 is mounted on the main body 6 by bolts.

Referring to fig. 2 and 3, the bearing bracket further includes a water guard 8, and the water guard 8 is an annular plate. When the bearing bracket is installed on the double suction pump, the water baffle 8 is in interference fit with the pump shaft 3, and the water baffle 8 is positioned on one side of the bearing cover 7 departing from the main body 6. When the mechanical seal of the double suction pump leaks, the possibility that liquid enters the installation groove 63 to influence the work of the bearing 5 is reduced under the blocking action of the water baffle 8.

Referring to fig. 1 and 4, in order to facilitate detection of the vibration condition of the double suction pump during operation, a vibration measurement interface 65 for connecting a vibration detection device is disposed on a side edge of the first connecting portion 61, the vibration measurement interface 65 is a blind hole, and an extending direction of the vibration measurement interface 65 points to an axis of the mounting groove 63. In order to facilitate the detection of the working temperature condition of the double suction pump, two temperature measuring interfaces 66 for connecting temperature detection equipment are arranged on the side edge of the main body 6, the two temperature measuring interfaces 66 are symmetrically arranged on two sides of the axis of the mounting groove 63, the two temperature measuring interfaces 66 are blind holes, and the extending direction of the temperature measuring interfaces 66 points to the axis of the mounting groove 63.

In order to explain the bearing bracket for mounting the drive end bearing 5 of the pump shaft 3, a bearing bracket for mounting the non-drive end bearing 5 of the pump shaft 3 is explained below. Referring to fig. 1 and 2, the difference between the bearing bracket for mounting the non-drive end bearing 5 of the pump shaft 3 and the bearing bracket for mounting the drive end bearing 5 of the pump shaft 3 is that: the bottom of the mounting groove 63 is not provided with a yielding hole 64, and one side of the bearing cover 7 plate facing the main body 6 is fixedly connected with a fixing piece 72 for abutting against the bearing 5. The fixing member 72 has a ring-shaped structure, and the outer diameter of the fixing member 72 is equal to the outer diameter of the bearing 5. When the bearing bracket for mounting the non-drive end bearing 5 of the pump shaft 3 is mounted on the double suction pump, the non-drive end bearing 5 of the pump shaft 3 is clamped between the fixing piece 72 and the bottom wall of the mounting groove 63, so that the displacement of the bearing 5 of the non-drive end bearing 5 of the pump shaft 3 is limited, and the stability of the non-drive end bearing 5 of the pump shaft 3 is enhanced.

The implementation principle of the bearing bracket of the double suction pump in the embodiment of the application is as follows: the bearing bracket is fixedly connected with the pump body 1 through a bolt and is also fixedly connected with the pump cover 2 through a bolt, so that the stability of the bearing bracket is improved, the running stability of the double-suction pump is enhanced, the vibration and the noise of the double-suction pump during running are reduced, and the service life of the double-suction pump is prolonged.

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. Bearing bracket of double suction pump, double suction pump includes the pump body (1) and pump cover (2) through the bolt rigid coupling, be provided with pump shaft (3) between the pump body (1) and pump cover (2), install bearing (5), its characterized in that on pump shaft (3): the bearing bracket comprises a main body (6) for supporting the bearing (5), wherein a first connecting part (61) for connecting the pump body (1) and a second connecting part (62) for connecting the cover body are arranged on the main body (6).

2. The bearing bracket for a double suction pump according to claim 1, wherein: be provided with third tang (611) on first connecting portion (61), be provided with fourth tang (621) on second connecting portion (62), third tang (611) and fourth tang (621) are mutually supported and are used for realizing the location of bearing bracket on the double entry pump.

3. The bearing bracket for a double suction pump according to claim 2, wherein: the main body (6) is also provided with a spigot structure, and the spigot structure on the main body (6) is connected with the third spigot (611) and the fourth spigot (621) to form a circular spigot.

4. Bearing bracket for a double suction pump according to any of claims 1-3, characterized in that: the bearing is characterized in that a mounting groove (63) for mounting the bearing (5) is formed in the main body (6), and a bearing cover (7) is detachably mounted at a notch of the mounting groove (63).

5. The bearing bracket for a double suction pump according to claim 4, wherein: the bearing cover (7) is provided with a fixing piece (72) for fixing the bearing (5), and when the bearing (5) is installed on the bearing bracket, the bearing (5) is clamped between the bottom wall of the installation groove (63) and the fixing piece (72).

6. The bearing bracket for a double suction pump according to claim 4, wherein: and a yielding hole (64) for the pump shaft (3) to penetrate is formed in the bottom wall of the mounting groove (63).

7. The bearing bracket for a double suction pump according to claim 4, wherein: and a water baffle (8) is arranged on one side of the bearing cover (7) departing from the main body (6).

8. The bearing bracket for a double suction pump according to claim 4, wherein: and a vibration measuring interface (65) is arranged on the bearing bracket.

9. The bearing bracket for a double suction pump according to claim 4, wherein: and a temperature measuring interface (66) is arranged on the bearing bracket.