Combined structure of combined sliding bearing

Abstract

The utility model relates to the technical field of sliding bearings, and discloses a combined structure of a combined sliding bearing, which comprises a bearing seat and a bearing cover, a screw rod is mounted on the upper side of the bearing seat in a threaded manner, the bearing cover covers the upper side of the bearing seat, the screw rod penetrates through the bearing cover, and a nut is mounted at the top end of the screw rod in a threaded manner; a bearing bush is arranged in the bearing seat and the bearing cover, a liquid inlet hole is formed in the surface of the bearing bush, and an oil cup is installed on the upper side of the bearing cover. According to the combined structure of the combined sliding bearing, the oil cup is arranged on the upper side of the bearing cover, the cut-off sleeve is arranged between the oil cup and the bearing bush, the angle of the plug is rotated, and the overlapping area of the first oil hole and the second oil hole is controlled, so that the speed of conveying lubricating oil to the bearing bush by the oil cup is adjustable, and the problem that the lubricating flow speed of an existing sliding bearing cannot be adjusted is solved; under different working conditions, the effective lubrication service life of the sliding bearing is prolonged, and the maintenance burden is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to sliding bearing technical field, concretely is a combined structure of combined sliding bearing. BACKGROUND

[0002] The sliding surface is separated by lubricating oil and does not have direct contact under the condition of liquid lubrication of sliding bearing, and the friction loss and surface wear can be greatly reduced, and the oil film also has a certain vibration absorption capacity, in order to facilitate dismounting, the inside is generally provided with a bushing, in the prior art, the patent file with the announcement number CN207989567U discloses a modular combined sliding bearing group, including support block, the top of support block is fixedly connected with bearing seat, the upper side of bearing seat is equipped with bearing cover, the inside of bearing seat is equipped with lower screw hole, the inside of bearing cover is equipped with upper screw hole, bearing seat is connected with bearing cover through fastening bolt and screw thread, the right side of bearing cover is fixedly connected with fastening device, the bottom of fastening device is fixedly connected with clamping plate.

[0003] Under different working conditions, the lubricating oil supply speed of the bushing needs to be adjusted, and the lubricating oil loss speed is reduced, but the oil inlet hole provided in the existing combined sliding shaft is a fixed hole diameter, which brings inconvenience to adjustment, and further improvement is needed. UTILITY MODEL CONTENTS

[0004] The utility model discloses a combined structure of combined sliding bearing, which solves the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: a combined structure of combined sliding bearing, including bearing seat and bearing cover, the upper side of bearing seat is equipped with screw rod and is installed in screw thread, bearing cover covers the upper side of bearing seat, screw rod passes through bearing cover, and the top of screw rod is equipped with nut and is installed in screw thread;

[0006] The inside of bearing seat and bearing cover is provided with bushing, the surface of bushing is equipped with liquid inlet hole, the upper side of bearing cover is equipped with installation hole and communicates with liquid inlet hole, installation hole is tightly fitted and is installed with intercepting sleeve, the inside of intercepting sleeve is inserted with plug, the bottom of intercepting sleeve is equipped with first oil hole, the end of plug is equipped with second oil hole and is penetrated up and down, the upper side of bearing cover is equipped with oil cup and is installed in screw thread at installation hole, the overlapping area of first oil hole and second oil hole is adjustable, so that the speed of oil cup conveying lubricating oil to bushing is adjustable.

[0007] In some embodiments, the inner part of the bearing seat and bearing cover is provided with an annular sealing groove, the outer surface of the bearing bush and the inner wall of the annular sealing groove form an annular sealing filling cavity, and the annular sealing filling cavity can be filled with sealant, thereby improving the sealing performance of the bearing bush, bearing seat and bearing cover.

[0008] In some embodiments, the bearing bush has a two-piece structure, and comprises an upper bush body and a lower bush body, the liquid inlet hole is arranged on the upper side of the upper bush body, the inner wall of the bearing bush is provided with a first groove and two second grooves, the liquid inlet hole is communicated with the first groove, and the two second grooves are arranged at the joint of the upper bush body and the lower bush body, and the first groove and the second grooves can store more lubricating oil.

[0009] In some embodiments, the inner part of the upper bush body is provided with a plurality of spiral grooves, and the first groove and the second grooves are communicated through the spiral grooves, the lubricating oil flows along the spiral grooves, so that the diffusion coverage is wider, and the lubricating efficiency is improved.

[0010] In some embodiments, the inner part of the oil cup is provided with a liquid storage cavity, the bottom end of the oil cup is provided with a liquid outlet hole communicated with the liquid storage cavity, the first oil hole and the second oil hole overlap to form a flow guide channel communicated in the up-down direction, the oil cup is communicated with the liquid inlet hole through the flow guide channel, the mounting hole of the bearing cover is provided with a pre-tightening spring, the upper and lower ends of the pre-tightening spring are respectively abutted against the oil cup and the plug, and the plug can be angle-adjusted by disassembling the oil cup.

[0011] Advantages

[0012] The utility model provides a combined structure of combined sliding bearing, has the following advantages:

[0013] 1. The combined structure of combined sliding bearing, through setting up the oil cup on the upper side of bearing cover, and setting up the intercepting sleeve between the oil cup and bearing bush, the angle of plug is rotated, the overlapping area of first oil hole and second oil hole is controlled, the speed of oil cup to bearing bush conveying lubricating oil is adjustable, the problem of current sliding bearing lubricating flow rate being not adjustable is solved, the effective lubricating life of sliding bearing under different working conditions is prolonged, and the maintenance burden is reduced.

[0014] 2. The combined structure of combined sliding bearing, through setting up the bearing bush which is composed of upper bush body and lower bush body, and setting up the spiral groove in the upper bush body, the lubricating oil flows along the spiral groove, so that the diffusion coverage is wider, and the lubricating efficiency is improved, when the upper bush body and the lower bush body are worn, the upper bush body and the lower bush body can be replaced separately, so that the combined sliding bearing is more convenient to disassemble and assemble, and is more practical. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the utility model;

[0016] Figure 2 It is a partial sectional structure schematic view of the utility model;

[0017] Figure 3 It is Figure 2 It is an enlarged structure schematic view of A in the middle;

[0018] Figure 4 It is a bearing bush three-dimensional structure schematic view;

[0019] Figure 5 It is a cut-off sleeve and plug split structure schematic view.

[0020] In the drawing: 1 bearing seat, 2 bearing cover, 3 screw rod, 4 nut, 5 bearing bush, 6 liquid inlet hole, 7 cut-off sleeve, 8 plug, 9 first oil hole, 10 second oil hole, 11 oil cup, 12 annular sealing groove, 13 upper bush body, 14 lower bush body, 15 first recess, 16 second recess, 17 spiral groove, 18 pre-tightening spring. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be apparently and completely described in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] Please refer to Figures 1-5 The utility model provides a technical scheme: a combined structure of combined sliding bearing, including bearing seat 1 and bearing cover 2, the upper side threaded mounting of bearing seat 1 has screw rod 3, bearing cover 2 covers in the upper side of bearing seat 1, screw rod 3 passes through bearing cover 2, and the top end threaded mounting of screw rod 3 has nut 4, bearing cover 2 is pressed tightly by nut 4.

[0023] The inside of bearing seat 1 and bearing cover 2 is provided with bearing bush 5, and the inside of bearing seat 1 and bearing cover 2 is provided with annular sealing groove 12, the outer surface of bearing bush 5 and the inner wall of annular sealing groove 12 form annular sealing filling cavity, and the annular sealing filling cavity can be filled with sealant.

[0024] The surface of bearing bush 5 is provided with liquid inlet hole 6, and the upper side of bearing cover 2 is provided with mounting hole communicated with liquid inlet hole 6, and cut-off sleeve 7 is tightly fitted and mounted in mounting hole, and plug 8 is inserted in the inside of cut-off sleeve 7.

[0025] The bottom of the intercepting sleeve 7 is provided with a first oil hole 9, the end of the plug 8 is provided with a second oil hole 10 which penetrates up and down, the upper side of the bearing cover 2 is provided with an oil cup 11 which is screwed at the mounting hole, the inside of the oil cup 11 is provided with a liquid storage cavity, the bottom end of the oil cup 11 is provided with a liquid outlet hole which communicates with the liquid storage cavity, the first oil hole 9 and the second oil hole 10 overlap to form a flow guide channel which communicates up and down, the oil cup 11 communicates with the liquid inlet hole 6 through the flow guide channel, the oil cup 11 is removed to facilitate the angle adjustment of the plug 8, the plug 8 is rotated to change the overlapping area of the first oil hole 9 and the second oil hole 10, so as to change the flow capacity of the flow guide channel.

[0026] The mounting hole of the bearing cover 2 is provided with a pre-tightening spring 18, the upper and lower ends of the pre-tightening spring 18 abut against the oil cup 11 and the plug 8 respectively.

[0027] The bearing bush 5 is a two-piece structure, the bearing bush 5 includes an upper bush body 13 and a lower bush body 14, the liquid inlet hole 6 is arranged at the upper side of the upper bush body 13 to facilitate the disassembly of the upper bush body 13 and the lower bush body 14.

[0028] Reference Figure 4 The inner wall of the bearing bush 5 is provided with a first groove 15 and two second grooves 16 respectively, the liquid inlet hole 6 communicates with the first groove 15, the two second grooves 16 are arranged at the abutting position of the upper bush body 13 and the lower bush body 14, the inside of the upper bush body 13 is provided with a plurality of spiral grooves 17, the first groove 15 and the second grooves 16 communicate through the spiral grooves 17, and the first groove 15 and the second grooves 16 can store more lubricating oil.

[0029] The bearing bush 5 is composed of the upper bush body 13 and the lower bush body 14, and the spiral grooves 17 are arranged in the upper bush body 13, the lubricating oil flows along the spiral grooves 17 to make the diffusion coverage wider and improve the lubrication efficiency, and when the upper bush body 13 and the lower bush body 14 are worn, the upper bush body 13 and the lower bush body 14 can be replaced separately, so that the combined sliding bearing is more convenient and practical to disassemble.

[0030] The combined structure of the combined sliding bearing, the oil cup 11 is arranged on the upper side of the bearing cover 2, and the intercepting sleeve 7 is arranged between the oil cup 11 and the bearing bush 5, the overlapping area of the first oil hole 9 and the second oil hole 10 is controlled by rotating the angle of the plug 8, the speed of the oil cup 11 to deliver lubricating oil to the bearing bush 5 is adjustable, the problem that the lubricating flow rate of the existing sliding bearing is not adjustable is solved, the effective lubrication life of the sliding bearing is prolonged under different working conditions, and the maintenance burden is reduced.

[0031] Working principle: firstly install bearing seat 1, and then make the upper tile body 13 and the lower tile body 14 wrap the end of the rotating shaft, then make the bearing bush 5 install on the bearing seat 1, and then install the bearing cover 2, fill the sealing glue in the annular sealing filling cavity through the upper side of the bearing cover 2 in the installation hole, then install the intercepting sleeve 7, and make the intercepting sleeve 7 insert into the liquid hole 6, rotate the plug 8, make the first oil hole 9 and the second oil hole 10 overlap area change, thereby change the flow capacity of the flow channel, then install the pre-tightening spring 18 and the oil cup 11, the lubricating oil in the oil cup 11 flows into the liquid hole 6 by the flow channel, and then flows into the spiral groove 17, thereby lubricate the surface of the rotating shaft in the bearing bush 5.

[0032] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A combined structure for a composite sliding bearing, comprising a bearing housing (1) and a bearing cap (2), characterized in that: The upper side of the bearing housing (1) is threaded with a screw (3), the bearing cover (2) is fitted on the upper side of the bearing housing (1), the screw (3) passes through the bearing cover (2), and a nut (4) is threaded on the top of the screw (3). The bearing housing (1) and bearing cover (2) are provided with bearing bushes (5), and the surface of the bearing bushes (5) is provided with liquid inlet holes (6). The upper side of the bearing cover (2) is provided with an installation hole that communicates with the liquid inlet holes (6). A flow-stopping sleeve (7) is tightly fitted in the installation hole. A plug (8) is inserted inside the flow-stopping sleeve (7). A first oil hole (9) is provided at the bottom of the flow-stopping sleeve (7). A second oil hole (10) is provided at the end of the plug (8) that runs through the top and bottom. An oil cup (11) is threadedly installed on the upper side of the bearing cover (2) at the installation hole.

2. The combined structure of a combined sliding bearing according to claim 1, characterized in that: The bearing housing (1) and bearing cover (2) are provided with annular sealing grooves (12), and the outer surface of the bearing bush (5) and the inner wall of the annular sealing groove (12) form an annular sealing filling cavity.

3. The combined structure of a combined sliding bearing according to claim 2, characterized in that: The bearing (5) has a two-part structure, comprising an upper bearing body (13) and a lower bearing body (14), with a liquid inlet (6) located on the upper side of the upper bearing body (13).

4. The combined structure of a combined sliding bearing according to claim 3, characterized in that: The inner wall of the bearing (5) is provided with a first groove (15) and two second grooves (16). The liquid inlet hole (6) is connected to the first groove (15), and the two second grooves (16) are located at the joint of the upper bearing body (13) and the lower bearing body (14).

5. The combined structure of a combined sliding bearing according to claim 4, characterized in that: The upper tile body (13) has multiple spiral grooves (17) inside, and the first groove (15) and the second groove (16) are connected through the spiral grooves (17).

6. The combined structure of a combined sliding bearing according to claim 5, characterized in that: The oil cup (11) has a liquid storage chamber inside, and the bottom end of the oil cup (11) has an outlet hole that connects to the liquid storage chamber.

7. The combined structure of a combined sliding bearing according to claim 6, characterized in that: The first oil hole (9) and the second oil hole (10) overlap to form a vertically connected guide channel, and the oil cup (11) is connected to the liquid inlet hole (6) through the guide channel.

8. The combined structure of a combined sliding bearing according to claim 7, characterized in that: A preload spring (18) is provided in the mounting hole of the bearing cover (2), and the upper and lower ends of the preload spring (18) abut against the oil cup (11) and the plug (8) respectively.

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