Mounting tool for bearing with withdrawal bush

Abstract

The utility model discloses a mounting tool for a bearing with a withdrawal bush, which relates to the technical field of bearings and comprises the bearing, a bearing seat and the withdrawal bush, the bearing is mounted on the bearing seat, the withdrawal bush is arranged on the inner side of the bearing, cross-shaped oil grooves are formed in the upper and lower parts of the inner and outer circular surfaces of the withdrawal bush, and the bearing seat is mounted on the bearing seat. One end of the withdrawing bushing is connected with a notch, the notch is connected with an oiling assembly, the oiling assembly comprises an oil pipe, one end of the oil pipe is connected with an oil pipe joint, the oil pipe joint is connected with the notch, the other end of the oil pipe is connected with an oil pump, and the oiling assembly enables a pressure oil film to be formed between the bearing and the withdrawing bushing. Meanwhile, an ejector rod, an oil ejector and a plate are arranged beside the withdrawal bushing to apply axial thrust to the withdrawal bushing, so that the withdrawal bushing is matched with the bearing, the mounting precision of the bearing is guaranteed, the bearing can be assembled in place at a time, the clearance value of bearing mounting is guaranteed, the service life of the bearing is prolonged, and normal use of the sintering main machine transmission device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field related to bearings, and in particular to an installation tool for a bearing with a withdrawable bushing. Background Art

[0002] The driving device of the sintering main machine in the metallurgical industry is mainly composed of a star wheel, a bearing seat, a bearing seat moving adjustment device, a flexible transmission device, a safety protection device, an electric motor and other components. Among them, spherical roller bearings are installed in the bearing seats on both sides of the star wheel, the driving side bearing seat is fixed, and the other side bearing seat is free. The bearing seat can be moved longitudinally along the sintering machine by operating the hydraulic screw jack, so as to adjust the deviation of the trolley. The installation of the bearing on the shaft in the driving device is related to the use effect and quality of the entire driving device. The bearings installed in the two bearing seats of the driving device are composed of a withdrawal bushing and a spherical roller bearing. The outer ring of the withdrawal bushing and the inner hole of the spherical roller bearing are tapered holes. If the bearing clearance is too large or too small, the working life of the bearing and even the stability of the entire equipment operation will be reduced. In the existing technology, the installation of the bearing is generally to apply a certain axial force to the inner and outer circular end faces of the bushing, so that the bushing can be inserted between the bearing and the shaft;

[0003] The disadvantages of the above-mentioned prior art solutions are that it is inconvenient to detect the clearance of the bearing installation in the prior art, and the bearing installation method in the prior art is also relatively rough, which affects the installation accuracy. Utility Model Content

[0004] The purpose of the utility model is to provide a mounting fixture for a bearing with a removable bushing, so as to solve the technical problems in the prior art of low bearing mounting accuracy and inconvenient bearing clearance detection.

[0005] The technical problem to be solved by the present invention can be achieved through the following technical solutions:

[0006] A mounting fixture for a bearing with a withdrawal bushing, comprising a bearing, a bearing seat, and a withdrawal bushing. The bearing is mounted on the bearing seat and is used to support a shaft. A withdrawal bushing is provided on the inner side of the bearing, the withdrawal bushing is provided with a fracture, cross oil grooves are provided on the inner and outer circumferential surfaces of the withdrawal bushing, and a notch is provided on one end of the withdrawal bushing.

[0007] The notch is connected to a refueling assembly, which includes an oil pipe, one end of which is connected to an oil pipe joint, which is connected to the notch, and the other end of the oil pipe is connected to an oil pump. The end surfaces of the inner and outer circles of the withdrawal bushing are connected to a power assembly.

[0008] As a further solution of the present invention: the power assembly includes an oil top and a plate, the oil top is arranged on both sides of the shaft, the plate is fixedly connected to the shaft, the two sides of the plate are fixedly connected to one end of the oil top, the other end of the oil top is connected to a push rod, and the push rod is fixedly connected to the end faces of the inner and outer circles of the withdrawal bushing.

[0009] As a further solution of the present invention: the plate is a steel plate.

[0010] Beneficial effects of the utility model:

[0011] The utility model provides an oiling assembly on the withdrawal bushing, and the oiling assembly includes an oil pipe, an oil pump, an oil pipe joint, a cross oil groove, etc., so that a pressure oil film is formed between the bearing and the withdrawal bushing. At the same time, a push rod, an oil ejector and a plate are provided beside the withdrawal bushing to give the withdrawal bushing an axial thrust, so that the withdrawal bushing is adapted to the bearing, the installation accuracy of the bearing is guaranteed, the bearing can be assembled in place at one time, and the installation data of the bearing can be conveniently measured, thereby ensuring the clearance value of the bearing installation, extending the service life of the bearing, and ensuring the normal use of the sintering main engine transmission device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawings.

[0013] Figure 1 This is the main view of the overall structure of the utility model;

[0014] Figure 2 This is a top view of the overall structure of the utility model;

[0015] Figure 3 It is a top view of the withdrawable bushing structure in the utility model.

[0016] In the figure: 1. Shaft; 2. Bearing seat; 3. Bearing; 4. Withdrawal bushing; 5. Oil pipe joint; 6. Oil pipe; 7. Oil ejector; 8. Ejector rod; 9. Plate; 10. Cross oil groove; 11. Notch; 12. Oil pump. DETAILED DESCRIPTION

[0017] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0018] like Figure 1-Figure 3As shown, a mounting fixture for a bearing with a withdrawable bushing includes a bearing 3, a bearing seat 2, and a withdrawable bushing 4. The bearing 3 is mounted on the bearing seat 2. The bearing 3 is used to support the shaft 1, reduce its friction coefficient during movement, and ensure its rotation accuracy. A withdrawable bushing 4 is provided on the inner side of the bearing 3. The withdrawable bushing 4 is used for installing and replacing the bearing 3. A notch 11 is provided at one end of the withdrawable bushing 4. A fracture is provided on the withdrawable bushing 4. Cross oil grooves 10 are provided on the upper and lower inner and outer circumferential surfaces of the withdrawable bushing 4.

[0019] The notch 11 is connected to a refueling assembly, which includes an oil pipe 6. One end of the oil pipe 6 is connected to an oil pipe joint 5, which is connected to the notch 11. The other end of the oil pipe 6 is connected to an oil pump 12, which is used to refuel the withdrawn bushing 4.

[0020] The inner and outer circle end faces of the withdrawal bushing 4 are connected with a power assembly, which is used to apply axial force to the withdrawal bushing 4 so that the withdrawal bushing 4 and the bearing 3 are installed more tightly. The power assembly includes an oil top 7 and a plate 9. The oil top 7 is arranged on both sides of the shaft 1. The plate 9 is fixedly connected to the shaft 1. The two sides of the plate 9 are fixedly connected to one end of the oil top 7. The plate 9 is generally a steel plate, which can make the plate 9 have high tensile strength and strong impact toughness. The other end of the oil top 7 is connected with a push rod 8, which is fixedly connected to the inner and outer circle end faces of the withdrawal bushing 4. The push rod 8 is used to push and pull the withdrawal bushing 4.

[0021] The working principle of the present invention is as follows: when the bearing 3 is installed on the shaft 1, the withdrawal bushing 4 is first placed inside the bearing 3, and then the bearing 3 is sleeved on the shaft 1. Since the gap between the bearing 3 and the shaft 1 is small, the withdrawal bushing 4 is not easy to adapt to the bearing 3 and the shaft 1, which will affect the installation accuracy of the bearing 3 and is not convenient for detecting the clearance value of the bearing 3, thereby reducing the working life of the bearing 3 and even the stability of the entire equipment operation. At this time, the oil pump 12 is used to refuel the oil pipe 6, and the oil enters the notch 11 of the withdrawal bushing 4 from the oil pipe 6 through the oil pipe joint 5, and then flows into the cross oil groove 10 through the fracture. The oil enters between the bearing 3 and the withdrawal bushing 4 through the cross oil groove 10, forming a pressure oil film, which makes the bearing 3 of the containing part swell and the withdrawal bushing of the contained part The sleeve 4 shrinks. At the same time, the oil top 7 is started. Since the oil top 7 is relatively fixed to the plate 9, the push rod 8 extends toward the withdrawal bushing 4. The withdrawal bushing 4 is subjected to an axial thrust, which makes the withdrawal bushing 4 and the bearing 3 move relative to each other. When they move relatively to the matching positions, the oil top 7 and the oil pump 12 stop working, and the lubricating oil between the withdrawal bushing 4 and the bearing 3 is discharged. At this time, the bearing 3 with the withdrawal bushing 4 is installed successfully. This installation tool that pressurizes the withdrawal bushing 4 with the oil pump 12 and applies axial mechanical pressure makes the withdrawal bushing 4 match the bearing 3, ensures the installation accuracy of the bearing 3, enables the bearing 3 to be assembled in place at one time, and conveniently measures the installation data of the bearing 3, ensures the installation clearance value of the bearing 3, extends the service life of the bearing 3, and ensures the normal use of the sintering main engine transmission device.

[0022] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A mounting tool for a bearing with a removable bushing, characterized in that: The invention comprises a bearing (3), a bearing seat (2) and a withdrawal bushing (4), wherein the bearing (3) is mounted on the bearing seat (2), the bearing (3) is used to support the shaft (1), a withdrawal bushing (4) is arranged on the inner side of the bearing (3), a fracture is arranged on the withdrawal bushing (4), cross oil grooves (10) are arranged on the inner and outer circumferential surfaces of the withdrawal bushing (4), and a notch (11) is arranged on one end of the withdrawal bushing (4); The notch (11) is connected to a refueling assembly, which includes an oil pipe (6), one end of the oil pipe (6) is connected to an oil pipe joint (5), the oil pipe joint (5) is connected to the notch (11), the other end of the oil pipe (6) is connected to an oil pump (12), and the end surfaces on both sides of the inner and outer circles of the withdrawal bushing (4) are connected to a power assembly.

2. The installation tool for a bearing with a removable bushing according to claim 1, characterized in that: The power assembly comprises an oil top (7) and a plate (9), wherein the oil top (7) is arranged on both sides of the shaft (1), the plate (9) is fixedly connected to the shaft (1), both sides of the plate (9) are fixedly connected to one end of the oil top (7), the other end of the oil top (7) is connected to a push rod (8), and the push rod (8) is fixedly connected to both end surfaces of the inner and outer circles of the withdrawal bushing (4).

3. The installation tool for a bearing with a removable bushing according to claim 2, characterized in that: The plate (9) is a steel plate.

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