Vertical pipeline pump with bearing box structure

Abstract

The utility model relates to a vertical pipeline pump with a bearing box structure. The vertical pipeline pump comprises a pump body, an impeller and a motor bracket, the impeller is arranged in the pump body, the impeller shaft is arranged above the impeller, the pump cover is sleeved on the impeller shaft above the impeller, the mechanical seal is sleeved on the impeller shaft above the pump cover, the multifunctional bearing box is arranged on the impeller shaft above the mechanical seal, and the bearing gland is arranged above the multifunctional bearing box; under the condition that the multifunctional bearing box is not disassembled, the working state of the multifunctional bearing box can be rapidly and conveniently detected through the external temperature measuring sensor and the vibration measuring sensor, and the liquid level of lubricating oil in the multifunctional bearing box can be observed by observing the oil level sight glass and the constant oil level oil cup. The oil level sight glass and the constant oil level oil cup are located on the two sides of the multifunctional bearing box respectively, observation from multiple angles is facilitated, the problems of the multifunctional bearing box can be found rapidly and accurately in daily inspection, various detection devices can be connected, and functionality is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of vertical pipeline pumps, and in particular relates to a vertical pipeline pump with a bearing box structure. Background Art

[0002] When a vertical pipeline pump is working, the pressure at the suction and discharge ports is unequal, which causes the liquid pressure on both sides of the impeller, which is not completely symmetrical, to be unequal, thereby generating an axial force. Because the outlet pressure is always greater than the inlet pressure, when the pipeline pump is working, there is a force along the axis and pointing to the inlet acting on the bearing, which increases the friction of the bearing. The prior art sets a bearing box at the bearing. The bearing box is a device that can reduce the friction when the machine is running. It mainly supports the bearing, transmits power and reduces friction.

[0003] Patent CN215890496U discloses a vertical pipeline pump, including a bearing housing. An upper bearing mounting structure is provided above the bearing housing, and a lower bearing mounting structure is provided below the bearing housing, so that a lubricating oil cavity is formed in the bearing housing. The running speed of the pump is increased by using thin oil to lubricate the rolling bearing.

[0004] However, traditional bearing boxes generally do not have interfaces, and it is impossible to monitor the working status of the bearings in real time, such as working temperature, bearing vibration frequency and other data. The bearing damage can only be known after the bearing damage causes the vertical pipeline pump to malfunction and the bearing box is opened. However, the bearing box is inconvenient to disassemble due to its sealing. Frequent disassembly may cause the sealing of the bearing box to fail.

[0005] Therefore, a multifunctional bearing box structure is needed with a reserved interface to detect and monitor the working status of the bearings in the bearing box in real time, so as to avoid the situation where the bearings need to be disassembled to determine the working status of the bearings when problems occur in the pipeline pump. Utility Model Content

[0006] In order to solve the technical problem that the working state of the bearing box cannot be detected when it is working, the utility model provides a vertical pipeline pump with a bearing box structure.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A vertical pipeline pump with a bearing box structure, comprising a pump body, an impeller, a motor bracket and a multifunctional bearing box;

[0009] The impeller is arranged in the pump body, the impeller shaft is arranged above the impeller, the pump cover is sleeved on the impeller shaft above the impeller, the impeller shaft above the pump cover is sleeved with a mechanical seal, the impeller shaft above the mechanical seal is arranged on the impeller shaft, the bearing gland is arranged above the multifunctional bearing box, the top of the impeller shaft is connected with the motor shaft above the motor bracket through a coupling;

[0010] A bearing groove is respectively arranged at the upper and lower ends of the multifunctional bearing box, a plane plate is respectively arranged at the left and right sides of the multifunctional bearing box, and a first threaded joint is respectively arranged above and below each plane plate.

[0011] Furthermore, the plane plate is a rectangular plane plate, and the two rectangular plane plates are respectively installed with a constant oil level oil cup and an oil level sight glass.

[0012] Furthermore, the depth of the first threaded joint is not less than 7 mm, and the first threaded joint does not penetrate the multifunctional bearing box.

[0013] Furthermore, a tapered hole is provided in the center of the first threaded joint.

[0014] Furthermore, a nameplate is arranged at the center of the front side of the multifunctional bearing box, and a breathing cap installation opening is arranged below the nameplate.

[0015] Furthermore, a second threaded joint is arranged above the sign.

[0016] Furthermore, a threaded oil drain hole is provided in the center of the rear side of the multifunctional bearing box, and the threaded oil drain hole is connected to an adapter, a connecting pipe and an oil drain valve.

[0017] Beneficial effects of the utility model:

[0018] The utility model can quickly and conveniently detect the working status of the multifunctional bearing box through external temperature sensors and vibration sensors without disassembling the multifunctional bearing box, and observe the lubricating oil level in the multifunctional bearing box by observing the oil level sight glass and the constant oil level oil cup. The oil level sight glass and the constant oil level oil cup are respectively located on both sides of the multifunctional bearing box, which are convenient for observation from multiple angles. Problems with the multifunctional bearing box can be quickly and accurately discovered during daily inspections, and a variety of detection equipment can be connected, with good functionality. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is an assembly diagram of a vertical pipeline pump with a bearing box structure of the utility model;

[0021] Figure 2 This is one of the axonometric drawings of the multifunctional bearing box in the utility model;

[0022] Figure 3 This is the second axonometric drawing of the multifunctional bearing box in the utility model;

[0023] Figure 4 It is a cross-sectional view of the multifunctional bearing box in the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0025] 1. Motor bracket; 2. Coupling; 3. Impeller shaft; 4. Bearing cover; 5. Thrust bearing; 6. Multifunctional bearing box; 601. Breathing cap mounting port; 602. Flat plate; 603. First threaded joint; 604. Tapered hole; 605. Bearing groove; 606. Nameplate; 607. Threaded oil drain hole; 7. Radial bearing; 8. Mechanical seal; 9. Pump cover; 10. Impeller; 11. Pump body. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] See also Figure 1 As shown, a vertical pipeline pump with a bearing box structure includes a pump body 11, an impeller 10 and a motor bracket 1, the impeller 10 is arranged in the pump body 11, an impeller shaft 3 is arranged above the impeller 10, a pump cover 9 is sleeved on the impeller shaft 3 above the impeller 10, a mechanical seal 8 is sleeved on the impeller shaft 3 above the pump cover 9, a multifunctional bearing box 6 is arranged on the impeller shaft 3 above the mechanical seal 8, a bearing pressure cover 4 is arranged above the multifunctional bearing box 6, and the top of the impeller shaft 3 is connected to the motor shaft above the motor bracket 1 through a coupling 2;

[0028] A radial bearing 7 is arranged in the multifunctional bearing box 6 and sleeved on the impeller shaft 3 , and a thrust bearing 5 is sleeved on the impeller shaft 3 below the bearing pressure cover 4 .

[0029] See also Figure 2-Figure 3 As shown, two cylindrical bearing grooves 605 are respectively arranged at the upper and lower ends of the multifunctional bearing box 6, and a rectangular plane plate 602 is respectively arranged on the left and right sides of the multifunctional bearing box 6. The two plane plates 602 are respectively used to install the constant oil level oil cup and the oil level sight glass. A first threaded joint 603 is respectively arranged above and below the plane plate 602. A tapered hole 604 is arranged in the center of the first threaded joint 603 to facilitate the connection of the temperature sensor and the vibration sensor to measure the working state of the multifunctional bearing box 6 during inspection. The first threaded joint 603 is not connected to the inner cavity of the multifunctional bearing box 6;

[0030] A nameplate 606 is set in the center of the front side of the multifunctional bearing box 6, a second threaded joint is set above the nameplate 606, a breathing cap installation port 601 is set below the nameplate 606, and a threaded oil drain hole 607 is opened in the center of the rear side of the multifunctional bearing box 6 for connecting an adapter, a connecting pipe and an oil drain valve.

[0031] See also Figure 4 As shown, a hollow space is arranged between the two bearing grooves 605 of the multifunctional bearing box 6, and the breathing cap mounting port 601 is connected to the inside of the multifunctional bearing box 6, which is used to discharge gas when the temperature of the multifunctional bearing box 6 rises during operation, so as to maintain the internal pressure of the multifunctional bearing box 6 stable.

[0032] Working principle:

[0033] When the utility model is in use, the flat plates 602 on the left and right sides are respectively installed with oil cups and oil level sight glasses, which is convenient for workers to inspect and observe the lubricating oil level in the multifunctional bearing box 6. At the same time, a first threaded joint 603 is respectively arranged above and below the flat plate 602, which is convenient for inspection workers to connect the temperature sensor and the vibration sensor from any side of the left and right sides of the multifunctional bearing box 6 through the tapered hole 604 arranged in the center of the first threaded joint 603. The disassembly and assembly are simple, and the measurement process is simple and convenient, so that the working status of the bearings in the multifunctional bearing box 6 can be well grasped.

[0034] In the description of the specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0035] The above contents are merely examples and explanations of the structure of the utility model. The technicians in the technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of the utility model.

Claims

1. A vertical pipeline pump with a bearing box structure, comprising a pump body (11), an impeller (10) and a motor bracket (1), characterized in that: Also includes a multifunctional bearing box (6); The impeller (10) is arranged in a pump body (11); an impeller shaft (3) is arranged above the impeller (10); a pump cover (9) is sleeved on the impeller shaft (3) above the impeller (10); a mechanical seal (8) is sleeved on the impeller shaft (3) above the pump cover (9); a multifunctional bearing box (6) is arranged on the impeller shaft (3) above the mechanical seal (8); a bearing gland (4) is arranged above the multifunctional bearing box (6); and the top of the impeller shaft (3) is connected to the motor shaft above the motor bracket (1) through a coupling (2); The multifunctional bearing box (6) is provided with a bearing groove (605) at the upper and lower ends respectively, a plane plate (602) is provided at the left and right sides respectively, and a first threaded joint (603) is provided above and below each plane plate (602) respectively.

2. A vertical pipeline pump with a bearing box structure according to claim 1, characterized in that: The plane plate (602) is rectangular, and the two plane plates (602) are respectively mounted with a constant oil level cup and an oil level sight glass.

3. A vertical pipeline pump with a bearing box structure according to claim 1, characterized in that: The first threaded joint (603) does not penetrate the multifunctional bearing housing (6).

4. A vertical pipeline pump with a bearing box structure according to claim 3, characterized in that: A tapered hole (604) is provided in the center of the first threaded joint (603).

5. A vertical pipeline pump with a bearing box structure according to claim 1, characterized in that: A sign (606) is arranged at the center of the front side of the multifunctional bearing box (6), and a breathing cap mounting opening (601) is arranged below the sign (606).

6. A vertical pipeline pump with a bearing box structure according to claim 5, characterized in that: A second threaded joint is arranged above the sign (606).

7. A vertical pipeline pump with a bearing box structure according to claim 1, characterized in that: A threaded oil drain hole (607) is provided at the center of the rear side of the multifunctional bearing box (6), and the threaded oil drain hole (607) is connected to the adapter, the connecting pipe and the oil drain valve.

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