CN210059844U - Boring bar supporting and positioning mechanism of double-suction centrifugal pump - Google Patents

Abstract

The utility model discloses a double suction centrifugal pump boring bar supporting and positioning mechanism, which comprises a guide seat, a U-shaped bracket arranged on the guide seat and a positioning component positioned in the U-shaped bracket; the positioning assembly comprises a positioning box body arranged in the U-shaped bracket, a bearing positioned in the positioning box body and a positioning box cover positioned at the end part of the bearing, the positioning box cover is matched with the positioning box body, a lining is arranged in the positioning box cover, and the end part of the lining is connected with a locking piece; the mechanism is simple in structure, convenient to disassemble and assemble, simple to operate and quick to replace and overhaul.

Description

Boring bar supporting and positioning mechanism of double-suction centrifugal pump

Technical Field

The utility model relates to a double suction centrifugal pump technical field, concretely relates to double suction centrifugal pump boring bar supports positioning mechanism.

Background

The boring bar of the existing double-suction centrifugal pump is positioned by adopting a common bearing seat, the structure easily causes the problem of excessive or insufficient positioning in the working process of the device, and the positioning is inaccurate, so that the normal work of the device is influenced, and the service life is reduced; and the structure is complicated, the disassembly and the assembly are inconvenient, the maintenance is troublesome, and the working efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a location reliable and stable double entry centrifugal pump boring bar supports positioning mechanism.

The utility model provides an above-mentioned technical problem's technical scheme as follows: the double-suction centrifugal pump boring bar supporting and positioning mechanism comprises a guide seat, a U-shaped bracket arranged on the guide seat and a positioning assembly positioned in the U-shaped bracket;

the locating component comprises a locating box body arranged in the U-shaped support, a bearing located inside the locating box body and a locating box cover located at the end part of the bearing, the locating box cover is matched with the locating box body, a lining is arranged inside the locating box cover, and the end part of the lining is connected with a locking piece.

Further, the U-shaped support comprises a U-shaped positioning section and a fixing section connected to the lower end of the U-shaped positioning section, the fixing section is connected with the guide seat, and the positioning box body is located in the U-shaped positioning section.

Furthermore, the location box body include first location section and with the second location section that first location section is connected, first location section is connected on the U type support, just the inner wall of first location section with the outer wall of bearing is connected, the second location section with the bearing is kept away from the terminal surface of location box body and is connected.

Furthermore, an oil seal is arranged in the second positioning section of the positioning box body.

Furthermore, a check ring is arranged in the first positioning section of the positioning box body.

Further, the locking piece adopts a nut.

Furthermore, the lining is made of soft materials with good wear resistance.

The utility model discloses following beneficial effect has: the boring bar supporting and positioning mechanism of the double-suction centrifugal pump has a simple structure, stably and effectively positions the boring bar through the U-shaped bracket and the positioning assembly, radially limits the boring bar through the positioning box body, axially limits the boring bar through the positioning box cover, ensures the stable and reliable fixation of the boring bar, and ensures the positioning accuracy of the boring bar; the positioning assembly and the boring rod are locked through the locking piece, when the positioning assembly and the boring rod need to be disassembled, the positioning assembly and the boring rod can be taken out only by disassembling the locking piece, the disassembly and the assembly are convenient, the operation is simple, and the replacement and the overhaul are quick; by the liner protection effect of the lining, the sealing performance is improved, the abrasion of a shaft in the boring bar is reduced, and the service life is prolonged.

Drawings

FIG. 1 is a front view of the present invention;

FIG. 2 is a side sectional view of the present invention;

the reference numerals shown in fig. 1 to 2 are respectively expressed as: 1-a guide seat, 2-a U-shaped bracket, 3-a positioning assembly, 30-a positioning box body, 32-a bearing, 31-a positioning box cover, 4-a lining, 5-a locking piece, 20-a U-shaped positioning section, 21-a fixing section, 301-a first positioning section, 302-a second positioning section, 6-an oil seal and 7-a retainer ring.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1 to fig. 2, the boring bar supporting and positioning mechanism of the double suction centrifugal pump comprises a guide base 1, a U-shaped bracket 2 arranged on the guide base 1, and a positioning assembly 3 positioned in the U-shaped bracket 2. The guide seat 1 is a boring machine guide seat 1, and the positioning assembly 3 is used for stabilizing and limiting the boring bar, ensuring the positioning precision and avoiding the influence on the working performance due to deviation.

The positioning assembly 3 comprises a positioning box body 30 arranged in the U-shaped support 2, a bearing 32 positioned inside the positioning box body 30 and a positioning box cover 31 positioned at the end part of the bearing 32, the positioning box cover 31 is matched with the positioning box body 30, a lining 4 is arranged inside the positioning box cover 31, and the end part of the lining 4 is connected with a locking part 5. U type support 2 includes U type location section 20 and connects the canned paragraph 21 at U type location section 20 lower extreme, and canned paragraph 21 is connected with guide holder 1, and location box body 30 is located U type location section 20.

Preferably, the positioning box body 30 is a bearing box, the interior of the positioning box body is a hollow structure, the boring bar 100 is located in a bearing 32 inside the positioning box body 30, the bearing 32 is used for positioning the boring bar 100 to reduce friction, and the positioning box body 30 is used for limiting the bearing 32 to prevent radial movement of the bearing; the positioning box cover 31 is used for limiting the axial direction of the boring bar; the accurate positioning of the bearing is ensured, and further the accurate positioning of the boring bar is ensured, and preferably the positioning box cover 31 is a bearing cover. The bushing 4 is located between the boring bar and the positioning box cover 31, and the bushing 4 is a ring sleeve functioning as a gasket and made of a material with low hardness and good wear resistance, such as rubber, nylon or a non-metallic polymer. Through the liner protection effect of the lining, the internal sealing performance is improved, and the abrasion of the boring bar is reduced. The preferable retaining member 5 adopts the nut, when the boring bar is dismantled to needs and overhauls or change, unscrews the nut of tip, can wholly take off locating component 3, and then takes off bush 4, location lid 31 and location box body 30 again, finally takes off bearing and boring bar, its easy dismounting, easy operation, labour saving and time saving.

In order to improve the limiting displacement to the bearing, and then guarantee the accurate positioning of boring bar, the utility model discloses in, location box body 30 includes first location section 301 and the second location section 302 of being connected with first location section 301, and first location section 301 is connected on U type support 2, and the inner wall of first location section 301 with the outer wall of bearing 32 is connected, and the terminal surface that location box body 31 was kept away from with bearing 32 to second location section 302 is connected. First location section 301 is used for radially carrying on spacingly to the bearing, and second location section 302 is used for carrying on spacingly to one side axial of bearing, and the axial of opposite side is spacing then acts on through location lid 31, and is provided with retaining ring 7 in the first location section 302 of location box body 30, through retaining ring 7, strengthens axial positioning's ability, and the location is accurate reliable.

In order to improve the sealing performance of the interior, the utility model discloses in, be provided with the oil blanket 6 in the second location section 302 of location box body 30. And the parts needing lubrication and the output parts in the transmission part are isolated by the oil seal 6, so that the leakage of lubricating oil is avoided.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. The double suction centrifugal pump boring bar supporting and positioning mechanism is characterized by comprising a guide seat (1), a U-shaped support (2) arranged on the guide seat (1) and a positioning assembly (3) positioned in the U-shaped support (2);

locating component (3) is including setting up location box body (30), the position in U type support (2) are in inside bearing (32) of location box body (30) and be located the location lid (31) of bearing (32) tip, just location lid (31) with location box body (30) cooperate, location lid (31) inside is provided with bush (4), the end connection of bush (4) has retaining member (5).

2. The double suction centrifugal pump boring bar supporting and positioning mechanism according to claim 1, characterized in that the U-shaped bracket (2) comprises a U-shaped positioning section (20) and a fixing section (21) connected to the lower end of the U-shaped positioning section (20), the fixing section (21) is connected with the guide base (1), and the positioning box body (30) is positioned in the U-shaped positioning section (20).

3. The double suction centrifugal pump boring bar supporting and positioning mechanism according to claim 1, wherein the positioning box body (30) comprises a first positioning section (301) and a second positioning section (302) connected with the first positioning section (301), the first positioning section (301) is connected with the U-shaped bracket (2), the inner wall of the first positioning section (301) is connected with the outer wall of the bearing (32), and the second positioning section (302) is connected with the end face, away from the positioning box body (30), of the bearing (32).

4. The double suction centrifugal pump boring bar supporting and positioning mechanism according to claim 3, characterized in that an oil seal (6) is provided in the second positioning section (302) of the positioning box body (30).

5. The double suction centrifugal pump boring bar supporting and positioning mechanism according to claim 3, characterized in that a retaining ring (7) is provided in the first positioning section (301) of the positioning box body (30).

6. The double suction centrifugal pump boring bar supporting and positioning mechanism according to any one of claims 1 to 5, characterized in that the locking member (5) employs a nut.

7. The double suction centrifugal pump boring bar supporting and positioning mechanism according to claim 6, characterized in that the bushing (4) is made of soft material with good wear resistance.

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