CN209781238U - single-shaft three-support submerged pump - Google Patents

Abstract

The utility model discloses a three support submerged pumps of unipolar, including bearing bracket, pivot and pump cover, the top of pivot is located to bearing bracket, the bottom of pivot is located to the pump cover, both sides are connected with first rotating member and second rotating member respectively about the bearing bracket, first rotating member and second rotating member and bearing bracket swivelling joint are passed through in the pivot, the pump cover is connected with the third rotating member, third rotating member and pump cover swivelling joint are passed through in the pivot. A three submerged pumps that support of unipolar can avoid pump head submerged position slide bearing by excessive loss, avoid repetitious dismouting submerged pump many times, reduce its maintenance cost.

Description

Single-shaft three-support submerged pump

Technical Field

The utility model relates to a submerged pump especially relates to a three support submerged pumps of unipolar.

Background

The submerged pump is a single-stage single-suction long-shaft submerged centrifugal pump, the vertical motor of the submerged pump is fastened on a motor base by bolts, and is directly driven by the pump through an elastic coupling, and the pump body, the intermediate connecting pipe, the pump frame, the liquid outlet pipe and the pipe flange are connected into a whole by bolts and fixed on a bottom plate, and the whole pump is installed on a container through the bottom plate. The supporting points of the conventional double-support submerged pump are respectively arranged at the submerged part of the pump head and the upper side of the bearing support, the supporting bearing arranged at the upper side of the bearing support is lubricated by grease, and the supporting bearing arranged at the submerged part of the pump head is self-lubricated by a medium. Because the pump head needs to extend into a liquid medium, the supporting bearing at the pump head is mostly an acid-base-resistant and corrosion-resistant sliding bearing. Meanwhile, in the working process of the submerged pump, the existence of medium particles can not be avoided, so that the sliding bearing has short service life and high maintenance cost.

Disclosure of Invention

The purpose of the invention is as follows: in order to overcome the not enough of existence among the prior art, the utility model provides a three support submerged pump of unipolar to increase slide bearing's life, reduce its maintenance cost.

The technical scheme is as follows: in order to realize the above-mentioned purpose, the utility model discloses a three support submerged pumps of unipolar, including bearing bracket, pivot and pump cover, the top of pivot is located to bearing bracket, the bottom of pivot is located to the pump cover, both sides are connected with first rotating member and second rotating member respectively about the bearing bracket, first rotating member and second rotating member and bearing bracket swivelling joint are passed through in the pivot, the pump cover is connected with the third rotating member, third rotating member and pump cover swivelling joint are passed through in the pivot.

Further, the first rotating member, the second rotating member and the third rotating member are all provided with bearings capable of bearing radial force.

Further, the first rotating member is a double-row angular contact bearing, the second rotating member is a deep groove ball bearing, and the third rotating member is a sliding bearing.

Further, the upper side and the lower side of the bearing support are respectively provided with a fixing hole, the first rotating part and the second rotating part are fixedly connected in the fixing holes, a first end cover is covered above the first rotating part, the first end cover is connected with the bearing support, a second end cover is covered above the second rotating part, and the second end cover is connected with the bearing support.

Furthermore, the pump cover further comprises a supporting tube, a swelling end is formed at the top of the supporting tube and covers the outside of the second end cover, and the bottom of the supporting tube covers the outside of the third rotating part and is fixed with the pump cover.

The utility model has the advantages as follows: the utility model provides a three support submerged pump of unipolar, has increased new support between pump head submerged support and bearing frame upside support, and new support adopts the bearing that can bear radial force, has shared the pump head submerged support radial force that bears, has prevented that slide bearing from by excessive loss, has reduced the maintenance cost of submerged pump.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of a portion A of FIG. 1, namely, a bearing support;

Fig. 3 is a schematic structural diagram of part B of fig. 2, namely, a pump head submerged support.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The single-shaft three-support submerged pump as shown in fig. 1 to 3 comprises a bearing support 1, a rotating shaft 2, a pump cover 3, a driving motor 10, a pump body 11, an impeller 12, a liquid outlet pipe 13 and a support pipe 9, wherein the bearing support 1 is arranged at the top end of the rotating shaft 2, the pump cover 3 is arranged at the bottom end of the rotating shaft 2, the driving motor 10 is arranged above the bearing support 1, an output shaft of the driving motor 10 is in driving connection with the top end of the rotating shaft 2 through a connector, the bottom end of the rotating shaft 2 is connected with the impeller 12, the pump cover 3 and the pump body 11 are connected up and down to form a cavity which is arranged at the bottom end of the rotating shaft 2, the impeller 12 is arranged in the cavity formed by the pump cover and the pump body, the support pipe is arranged at the outer side of the rotating shaft, the bottom end of the support pipe is fixed with the pump cover, the bottom end of the liquid outlet pipe is communicated with a cavity formed by the pump body and the pump cover and used for discharging liquid.

The upper side and the lower side of the bearing support 1 are respectively connected with a first rotating part 4 and a second rotating part 5, the rotating shaft 2 is rotatably connected with the bearing support 1 through the first rotating part 4 and the second rotating part 5, the pump cover 3 is connected with a third rotating part 6, and the rotating shaft 2 is rotatably connected with the pump cover 3 through the third rotating part 6; the first rotating member 4, the second rotating member 5 and the third rotating member 6 are all bearings capable of bearing radial force, preferably, the first rotating member 4 is a double-row angular contact bearing, the second rotating member 5 is a deep groove ball bearing, and the third rotating member 6 is a sliding bearing. The second rotating part 5 can share the radial force applied to the third rotating part, so that excessive loss of the third rotating part is avoided, frequent disassembly and assembly of the submerged pump are avoided, and the maintenance cost of the submerged pump is reduced.

The upper and lower both sides of bearing bracket 1 are provided with the fixed orifices respectively, the bearing inner race fixed connection of first rotating member 4 and second rotating member 5 is in the fixed orifices, the inner circle of first rotating member and second rotating member is fixed with pivot 2, first end cover 7 is covered to first rotating member 4 top, first end cover 7 is connected with bearing bracket 1, second end cover 8 is covered to second rotating member 5 top, second end cover 8 is connected with bearing bracket 1. The upside of first rotating member and second rotating member all chooses for use packing to seal, the downside of first rotating member and second rotating member all adopts skeleton seal, first rotating member and second rotating member adopt the lubricated form of fat.

The top of the supporting tube 9 forms a swelling end which is covered outside the second end cover 8.

The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.

Claims (5)

1. The utility model provides a three support submerged pumps of unipolar which characterized in that: including bearing bracket (1), pivot (2) and pump cover (3), the top of pivot (2) is located in bearing bracket (1), the bottom of pivot (2) is located in pump cover (3), both sides are connected with first rotating member (4) and second rotating member (5) respectively about bearing bracket (1), pivot (2) are through first rotating member (4) and second rotating member (5) and bearing bracket (1) swivelling joint, pump cover (3) are connected with third rotating member (6), pivot (2) are through third rotating member (6) and pump cover (3) swivelling joint.

2. A single-shaft, three-support submersible pump according to claim 1, wherein: the first rotating part (4), the second rotating part (5) and the third rotating part (6) are all bearings capable of bearing radial force.

3. A single-shaft, three-support submersible pump according to claim 2, wherein: the first rotating piece (4) is a double-row angular contact bearing, the second rotating piece (5) is a deep groove ball bearing, and the third rotating piece (6) is a sliding bearing.

4. A single-shaft, three-support submersible pump according to claim 1, wherein: the bearing bracket is characterized in that fixing holes are respectively formed in the upper side and the lower side of the bearing bracket (1), a first rotating part (4) and a second rotating part (5) are fixedly connected to the fixing holes, a first end cover (7) is arranged above the first rotating part (4) in a covering mode, the first end cover (7) is connected with the bearing bracket (1), a second end cover (8) is arranged above the second rotating part (5) in a covering mode, and the second end cover (8) is connected with the bearing bracket (1).

5. A uni-axial three support submersible pump according to claim 4 wherein: the pump cover is characterized by further comprising a supporting pipe (9), an expanded end is formed at the top of the supporting pipe (9), the supporting pipe covers the outer portion of the second end cover (8), and the bottom of the supporting pipe (9) covers the outer portion of the third rotating part (6) and is fixed with the pump cover (3).