Crankshaft bearing outer circle extractor for water injection pump

Abstract

The utility model provides a crankshaft bearing outer circle extractor for a water injection pump. The crankshaft bearing outer circle extractor for the water injection pump comprises a base and a fixing table, the top of the base is fixedly sleeved with a bearing sleeve, and a limiting groove is formed in the side face of the fixing table. According to the crankshaft bearing outer circle extractor for the water injection pump, the lifting base is arranged, when a hollow bearing sleeve is detached, the lifting base is connected to the bottom of the bearing sleeve in a sleeved mode, at the moment, the supporting column is pressed on the top of the base, and the bottom of the first threaded column is connected to the top of the lifting base in a threaded and sleeved mode; at the moment, a nut is rotated so that the nut can drive a first threaded column to be slowly lifted, that is, the bearing sleeve is driven to be lifted through a lifting seat, so that the bearing sleeve can be moved out of the interior of the base, and the effect of disassembling the hollow bearing sleeve is achieved; therefore, convenience is brought to the disassembly of the bearing.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of crankshaft bearing outer circle extractor, especially relates to a crankshaft bearing outer circle extractor for water injection pump. BACKGROUND

[0002] Bearing is an important part indispensable in all kinds of machinery. Its main function is to support the rotating body of machinery, reduce the friction coefficient in its movement process, and ensure its rotation accuracy. Replacing bearings has always been a headache for all factories. If the bearing is not removed well, it will have a huge impact on the subsequent operation of the machinery. Some even replace the entire large machinery because of a small bearing. The commonly used bearing removal method is to remove the bearing by impact. This method is low in work efficiency, high in labor intensity, poor in safety, and easy to damage the bearing, resulting in increased removal cost.

[0003] In the prior art, such as the "bearing dismounting device" with the authorization announcement number CN222060184U, it includes a bearing body mounted on a shaft body; a dismounting mechanism for dismounting the bearing body, the dismounting mechanism includes a driving assembly, and the driving assembly is installed with dismounting assemblies on both sides; wherein the driving assembly includes a mounting seat, a threaded sleeve is fixedly connected on the mounting seat, a threaded rod is threadedly connected on the threaded sleeve, and an abutting block is rotatably installed on the end of the threaded rod through a bearing. The utility model first abuts the abutting pad against the bottom end of the shaft body, then rotates the driving rod, and makes the limiting buckle block clamped on both sides of the bearing. Then, the rotating handle is rotated, the rotating handle drives the threaded rod to rotate, so that the mounting seat can be driven to move downward under the thread action of the threaded sleeve, thereby the bearing body can be dismounted from the shaft body through the two limiting buckle blocks. This not only avoids the damage to the bearing caused by impact dismounting, but also is low in labor intensity, time-saving and labor-saving, and thus improves the dismounting efficiency of the bearing.

[0004] When dismounting the bearing in the prior art, since the bearing is mostly fixed by the bearing sleeve, the hollow area in the bearing sleeve is difficult to support the supporting block, which leads to the problem that the bearing sleeve cannot be dismounted, thereby greatly limiting the use range of the bearing dismounting device.

[0005] Therefore, it is necessary to provide a crankshaft bearing outer circle extractor for water injection pump to solve the above technical problems. UTILITY MODEL CONTENTS

[0006] The utility model provides a crankshaft bearing outer circle extractor for water injection pump, which solves the problem that the bearing sleeve cannot be dismounted due to the difficulty of the hollow area in the bearing sleeve to support the supporting block, thereby greatly limiting the use range of the bearing dismounting device.

[0007] In order to solve the above technical problems, the utility model provides a kind of outer circle extractor of crankshaft bearing for water injection pump, including base and fixed platform, the top of base is fixedly connected with bearing sleeve, the side of fixed platform is equipped with limiting slot, the inside of limiting slot is movably connected with sliding block, the bottom of sliding block is fixedly connected with support column, the inside of sliding block is threadedly connected with threaded rod, the inside of fixed platform is movably connected with No.

[0008] Preferably, the number of the lifting seat is two, and the two lifting seats are symmetrically distributed with the bearing sleeve as the axis of symmetry.

[0009] Preferably, the threaded rod is movably connected in the inside of the limiting slot, and the threaded rod and the No.

[0010] Preferably, the limiting slot is matched with the sliding block, and the sliding block is located in the middle of the side of the fixed platform.

[0011] Preferably, the gasket is in close contact with the top of the fixed platform, and the number of the gasket is two.

[0012] Preferably, the auxiliary mechanism includes a positioning port, which is provided in the inside of the lifting seat, and the top of the fixed platform is threadedly connected with a No.

[0013] Preferably, the front surface of the support column is in the shape of an inverted L, and the bottom of the support column is in close contact with the top of the base.

[0014] Preferably, the number of the sliding balls is several, and the several sliding balls are uniformly distributed on the bottom of the inner cavity of the limiting slot.

[0015] Compared with the related art, the utility model provides a kind of outer circle extractor of crankshaft bearing for water injection pump, which has the following beneficial effects:

[0016] The utility model provides a kind of outer circle extractor of crankshaft bearing for water injection pump, by setting lifting seat, when hollow bearing sleeve is disassembled, lifting seat is connected in the bottom of bearing sleeve, at this time, support column is pressed on the top of base and the bottom of No.

[0017] When the bearing needs to be disassembled, the support column is inverted to the two sides of the bearing, at this time the bottom nut of the rotating fixed table is rotated, so that the nut can drive the lifting seat to push through the No. 1 threaded column, so that the support column can pull the bearing out of the shaft column, thereby achieving the disassembly effect of the bearing, thereby improving the practical effect of the taking-out device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided.

[0019] Figure 2 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided. Figure 1 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided.

[0020] Figure 3 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided. Figure 1 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided.

[0021] Figure 4 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided. Figure 1 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided.

[0022] In the figure, the reference numerals are: 1, base; 2, fixed table; 3, bearing sleeve; 4, limiting groove; 5, sliding block; 6, support column; 7, threaded rod; 8, No. 1 threaded column; 9, nut; 10, gasket; 11, lifting seat; 12, auxiliary mechanism; 121, positioning port; 122, No. 2 threaded column; 13, sliding ball. DETAILED DESCRIPTION

[0023] The utility model will be further described below in combination with the drawings and embodiments.

[0024] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 Among them, Figure 1 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided. Figure 2 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided. Figure 1 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided. Figure 3 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided. Figure 1 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided. Figure 4 A preferred embodiment structure diagram of a water injection pump crankshaft bearing outer circle taking-out device is provided. Figure 1It is shown that a kind of water injection pump crankshaft bearing outer circle extractor support column elevation view. A kind of water injection pump crankshaft bearing outer circle extractor, including base 1 and fixed platform 2, the top of base 1 is fixedly sleeved with bearing sleeve 3, the side of fixed platform 2 is provided with limiting groove 4, the inside of limiting groove 4 is movably sleeved with sliding block 5, the bottom of sliding block 5 is fixedly connected with support column 6, the inside of sliding block 5 is threadedly sleeved with threaded rod 7, the inside of fixed platform 2 is threadedly sleeved with No.1 threaded column 8, the outside of No.1 threaded column 8 is threadedly sleeved with nut 9, the outside of No.1 threaded column 8 is movably sleeved with gasket 10, the bottom of No.1 threaded column 8 is movably sleeved with lifting seat 11, the inside of fixed platform 2 is provided with auxiliary mechanism 12, the bottom of limiting groove 4 inner cavity is movably sleeved with sliding ball 13.

[0025] The number of lifting seat 11 is two, and the two lifting seats 11 are symmetrically distributed with bearing sleeve 3 as the axis of symmetry. By arranging the lifting seat 11, when the hollow bearing sleeve 3 is disassembled, the lifting seat 11 is sleeved at the bottom of the bearing sleeve 3, at this time, the support column 6 is pressed on the top of the base 1 and the bottom of the No.1 threaded column 8 is threadedly sleeved on the top of the lifting seat 11, so that the support column 6 can support and limit the fixed platform 2, at this time, the nut 9 is rotated, so that the nut 9 drives the No.1 threaded column 8 to slowly lift, that is, the bearing sleeve 3 is lifted by the lifting seat 11, so that the bearing sleeve 3 can be removed from the inside of the base 1, thereby achieving the disassembly effect of the hollow bearing sleeve 3, that is, the disassembly of the bearing is facilitated.

[0026] The threaded rod 7 is movably sleeved in the inside of the limiting groove 4, and the threaded rod 7 and the No.1 threaded column 8 are perpendicular to each other. By arranging the threaded rod 7, when different diameter bearing sleeves 3 need to be disassembled, the threaded rod 7 is rotated, so that the threaded rod 7 drives the sliding block 5 to move horizontally, that is, the support column 6 is driven to move horizontally, thereby achieving the adjustment effect of the distance between the two support columns 6, so that the two support columns 6 can support the fixed platform 2, thereby facilitating the disassembly of the bearing sleeve 3 of different diameters.

[0027] The limiting groove 4 is matched with the sliding block 5, and the sliding block 5 is located in the middle of the side of the fixed platform 2. By arranging the limiting groove 4, when the threaded rod 7 drives the sliding block 5 to move horizontally, the limiting groove 4 can limit the horizontally moving sliding block 5, so that the problem of rotating deviation of the sliding block 5 when moving horizontally is avoided, thereby improving the stability of the sliding block 5 when moving horizontally, that is, improving the stability of the support column 6 when moving horizontally.

[0028] The gasket 10 is in close contact with the top of the fixed table 2, and the number of the gasket 10 is two; by arranging the gasket 10, when the nut 9 drives the first threaded column 8 to lift, the gasket 10 can protect and support the bottom of the nut 9, so that the problem of damage caused by friction between the nut 9 and the top of the fixed table 2 when the nut 9 rotates is avoided, thereby achieving the protection effect of the nut 9, that is, the service life of the shaft sleeve extractor is improved.

[0029] The auxiliary mechanism 12 comprises a positioning opening 121 arranged in the inner portion of the lifting seat 11, and the top of the fixed table 2 is threadedly sleeved with a second threaded column 122; by arranging the auxiliary mechanism 12, when the bearing inner sleeve needs to be disassembled, the supporting column 6 is abutted to the two sides of the bearing, at this time, the bottom of the second threaded column 122 is threadedly sleeved in the inner portion of the bearing inner sleeve, so that the second threaded column 122 can slowly stretch the bearing inner sleeve, so that the bearing inner sleeve can be pulled out from the inner portion of the bearing, thereby facilitating the disassembly of the small-aperture bearing inner sleeve, that is, the functionality of the extractor is improved.

[0030] The front surface of the supporting column 6 is in the shape of an inverted L, and the bottom of the supporting column 6 is in close contact with the top of the base 1; by arranging the supporting column 6, when the bearing needs to be disassembled, the supporting column 6 is invertedly buckled to the two sides of the bearing, at this time, the bottom nut 9 of the fixed table 2 is rotated, so that the nut 9 can drive the lifting seat 11 to push through the first threaded column 8, so that the supporting column 6 can pull the bearing to be disassembled from the outer portion of the shaft column, thereby achieving the disassembly effect of the bearing, thereby improving the practical effect of the extractor.

[0031] The number of the sliding balls 13 is several, and the several sliding balls 13 are uniformly distributed at the bottom of the inner cavity of the limiting groove 4; by arranging the sliding balls 13, when the threaded rod 7 drives the sliding block 5 to move horizontally, the sliding balls 13 can support and limit the horizontally moving sliding block 5, so that the problem of friction between the horizontally moving sliding block 5 and the bottom of the inner cavity of the limiting groove 4 is avoided, thereby improving the smoothness of the horizontally moving sliding block 5, that is, the smoothness of the extractor during adjustment is improved.

[0032] The working principle of the extractor for the outer circle of the crankshaft bearing of the water injection pump is as follows:

[0033] The first step: when the hollow bearing sleeve 3 is disassembled, the lifting seat 11 is sleeved at the bottom of the bearing sleeve 3, the support column 6 is pressed on the top of the base 1, and the bottom of the first threaded column 8 is threadedly sleeved on the top of the lifting seat 11, so that the support column 6 can support and limit the fixed table 2, at this time, the nut 9 is rotated, so that the nut 9 drives the first threaded column 8 to slowly lift, that is, the bearing sleeve 3 is lifted through the lifting seat 11, so that the bearing sleeve 3 is moved out of the base 1, thereby achieving the disassembly effect of the hollow bearing sleeve 3, that is, the bearing disassembly is facilitated, when the bearing sleeve 3 with different diameters needs to be disassembled, the threaded rod 7 is rotated, so that the threaded rod 7 drives the sliding block 5 to move horizontally, that is, the support column 6 is driven to move horizontally, thereby achieving the adjustment effect of the distance between the two support columns 6, so that the two support columns 6 can support the fixed table 2, thereby facilitating the disassembly of the bearing sleeve 3 with different diameters, when the threaded rod 7 drives the sliding block 5 to move horizontally, the limiting groove 4 can limit the horizontal movement of the sliding block 5, so that the problem of rotation deviation of the sliding block 5 during horizontal movement is avoided, thereby improving the stability of the horizontal movement of the sliding block 5, that is, improving the stability of the horizontal movement of the support column 6, when the nut 9 drives the first threaded column 8 to lift, the gasket 10 can protect and support the bottom of the nut 9, so that the problem of damage caused by friction between the nut 9 and the top of the fixed table 2 during rotation is avoided, thereby achieving the protection effect of the nut 9, that is, improving the service life of the shaft sleeve extractor;

[0034] The second step: when the bearing inner sleeve needs to be disassembled, the support column 6 is placed on both sides of the bearing, the bottom of the second threaded column 122 is threadedly sleeved in the bearing inner sleeve, so that the second threaded column 122 can slowly stretch the bearing inner sleeve, so that the bearing inner sleeve is pulled out of the bearing, thereby facilitating the disassembly of the small-aperture bearing inner sleeve, that is, improving the functionality of the extractor, when the bearing needs to be disassembled, the support column 6 is placed on both sides of the bearing, the nut 9 at the bottom of the fixed table 2 is rotated, so that the nut 9 drives the lifting seat 11 to move through the first threaded column 8, so that the support column 6 can pull the bearing out of the shaft column, thereby achieving the disassembly effect of the bearing, thereby improving the practical effect of the extractor, when the threaded rod 7 drives the sliding block 5 to move horizontally, the sliding ball 13 can support and limit the horizontal movement of the sliding block 5, so that the problem of friction between the sliding block 5 and the bottom of the limiting groove 4 during horizontal movement is avoided, thereby improving the smoothness of the horizontal movement of the sliding block 5, that is, improving the smoothness of the adjustment of the extractor.

[0035] Compared with the related art, the water injection pump crankshaft bearing outer circle extractor has the following beneficial effects:

[0036] By setting the lifting seat 11, when the hollow bearing sleeve 3 is disassembled, the lifting seat 11 is sleeved at the bottom of the bearing sleeve 3, at this time, the supporting column 6 is pressed on the top of the base 1 and the bottom of the first threaded column 8 is threadedly sleeved on the top of the lifting seat 11, so that the supporting column 6 can support and limit the fixed table 2, at this time, the nut 9 is rotated, so that the nut 9 drives the first threaded column 8 to slowly lift, that is, the bearing sleeve 3 is lifted through the lifting seat 11, so that the bearing sleeve 3 can be moved out of the base 1, thereby achieving the disassembly effect of the hollow bearing sleeve 3, that is, the bearing is disassembled conveniently.

[0037] The above is only an embodiment of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation obtained by using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A crankshaft bearing outer circle extractor for water injection pumps, comprising a base (1) and a fixing table (2), characterized in that: The top of the base (1) is fixedly sleeved with a bearing sleeve (3), the side of the fixed table (2) is provided with a limiting groove (4), the inside of the limiting groove (4) is movably sleeved with a sliding block (5), the bottom of the sliding block (5) is fixedly connected with a supporting column (6), the inside of the sliding block (5) is threadedly sleeved with a threaded rod (7), the inside of the fixed table (2) is movably sleeved with a threaded column (8), the outside of the threaded column (8) is threadedly sleeved with a nut (9), the outside of the threaded column (8) is movably sleeved with a gasket (10), the bottom of the threaded column (8) is threadedly sleeved with a lifting seat (11), the inside of the fixed table (2) is provided with an auxiliary mechanism (12), and the bottom of the limiting groove (4) is movably sleeved with a sliding ball (13).

2. A crank bearing outer circle extractor for a water injection pump according to claim 1, characterized in that The number of the lifting seat (11) is two, and the two lifting seats (11) are symmetrically distributed with the bearing sleeve (3) as the axis of symmetry.

3. The crankshaft bearing outer circle extractor for water injection pumps according to claim 1, characterized in that, The threaded rod (7) is movably sleeved in the inside of the limiting groove (4), and the threaded rod (7) and the threaded column (8) are perpendicular to each other.

4. The crankshaft bearing outer circle extractor for water injection pumps according to claim 1, characterized in that, The limiting groove (4) is matched with the sliding block (5), and the sliding block (5) is located at the middle of the side of the fixed table (2).

5. The crankshaft bearing outer circle extractor for water injection pumps according to claim 1, characterized in that, The gasket (10) is in close contact with the top of the fixed table (2), and the number of the gasket (10) is two.

6. The crankshaft bearing outer circle extractor for water injection pumps according to claim 1, characterized in that, The auxiliary mechanism (12) comprises a positioning port (121), the positioning port (121) is arranged in the inside of the lifting seat (11), and the top of the fixed table (2) is threadedly sleeved with a second threaded column (122).

7. The crankshaft bearing outer circle extractor for water injection pumps according to claim 1, characterized in that, The front of the supporting column (6) is in inverted L shape, and the bottom of the supporting column (6) is in close contact with the top of the base (1).

8. The crankshaft bearing outer circle extractor for water injection pumps according to claim 1, characterized in that, The number of the sliding ball (13) is several, and the several sliding balls (13) are uniformly distributed on the bottom of the inside of the limiting groove (4).

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