Thrust sliding bearing device

Abstract

The utility model discloses a thrust sliding bearing device, and relates to the technical field of sliding bearings, the thrust sliding bearing device comprises a left thrust disc, a sliding bearing, a right thrust disc and a main shaft, the sliding bearing is divided into an upper part and a lower part, and the top of the upper half part of the sliding bearing is provided with an anti-rotation pin shaft and a temperature measuring element hole; the main shaft is a three-section stepped shaft, the sliding bearing is arranged on the middle shaft portion of the main shaft in a sleeving mode, the sliding bearing is in clearance fit with the main shaft, the left thrust disc and the right thrust disc are installed on the left side and the right side of the sliding bearing respectively, and the left thrust disc and the right thrust disc are both installed on the main shaft. The thrust sliding bearing device has the advantages that the thrust sliding bearing device is simple in structure, convenient and fast to machine and stable to use, the machining and manufacturing cost of the bearing can be greatly reduced, and the use cost of a machine is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding bearings, in particular to a thrust sliding bearing device. Background Art

[0002] Sliding bearings are bearings that work under sliding friction. They work smoothly, reliably and without noise. Under liquid lubrication conditions, the sliding surfaces are separated by lubricating oil without direct contact, which can greatly reduce friction loss and surface wear. The oil film also has a certain vibration absorption ability, but the starting friction resistance is relatively large.

[0003] Nowadays, sliding bearings have become an indispensable component of various mechanical equipment. They are widely used in automobiles, ships, aviation, machinery, metallurgy, petroleum, chemical and other industries. People are constantly improving and innovating the manufacturing process and design structure of sliding bearings to meet the ever-changing market demand. Thrust sliding bearings are generally used as positioning bearings. They need to bear both supporting force and axial force at the same time. They will wear out as the use time increases, and the wear will affect the operation stability of the machine. In order to ensure the stable operation of the machine, they need to be inspected and replaced regularly. They are wearing parts. In the long run, the cost of using the machine must increase. For this reason, we propose a thrust sliding bearing device. Utility Model Content

[0004] The purpose of the utility model is to provide a thrust sliding bearing device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thrust sliding bearing device, comprising a left thrust plate, a sliding bearing, a right thrust plate and a main shaft, the sliding bearing being divided into an upper and lower part, an anti-rotation pin shaft and a temperature measuring element hole being provided at the top of the upper half of the sliding bearing, the main shaft being a three-section stepped shaft, the sliding bearing being sleeved on the middle shaft part of the main shaft, and the sliding bearing being clearance-fitted with the main shaft, the left thrust plate and the right thrust plate being respectively installed on the left and right sides of the sliding bearing, and both the left thrust plate and the right thrust plate being installed on the main shaft, and the left thrust plate and the right thrust plate being interference-fitted with the main shaft.

[0006] As a further solution of the present invention: two symmetrically distributed oil inlet grooves are provided on the circumferential surface of the sliding bearing, and both of the oil inlet grooves are square in design.

[0007] As a further solution of the present invention: both end faces and the inner circumferential surface of the sliding bearing are provided with a Babbitt alloy layer, and the surface of the Babbitt alloy layer is smooth.

[0008] As a further solution of the present invention: a group of U-shaped oil guide grooves evenly distributed in an annular shape are provided on opposite sides of the left thrust plate and the right thrust plate.

[0009] As a further solution of the present invention: a chamfered surface is provided on the side of each of the U-shaped oil guide grooves opposite to the rotation direction of the main shaft.

[0010] As a further solution of the present invention: the number of each group of U-shaped oil guide grooves is set to eight.

[0011] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The end faces and inner hole of the sliding bearing proposed by the present invention are cast with a babbitt alloy layer, which can reduce friction. The babbitt alloy layers on both sides of the sliding bearing are simple planes without complicated oil grooves, which shortens the processing time and reduces the bearing manufacturing cost. The lubricating oil enters from the two oil inlet grooves of the sliding bearing, and forms an oil film between the inner hole of the sliding bearing and the rotating main shaft, reducing the wear of the supporting direction force; the lubricating oil is squeezed to flow to both sides of the sliding bearing, and is discharged through the U-shaped oil guide grooves of the left thrust plate and the right thrust plate. The rotating left thrust plate, right thrust plate and sliding bearing form an oil film, reducing the wear of the axial thrust.

[0013] Other advantages, objectives and features of the present invention will be described in part in the following description and will be apparent to those skilled in the art based on an examination of the following or may be learned from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall assembly structure in an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the three-dimensional structure of the sliding bearing in the embodiment of the utility model;

[0016] Figure 3 In the embodiment of the present utility model Figure 1 Schematic diagram of the cross-sectional structure in the AA direction;

[0017] Figure 4 In the embodiment of the present utility model Figure 1 Schematic diagram of the cross-sectional structure in the middle BB direction;

[0018] Figure 5 It is a side view of a group of U-shaped oil guide grooves in an embodiment of the present utility model.

[0019] In the figure: 1. Sliding bearing; 2. Main shaft; 3. Left thrust plate; 4. Right thrust plate; 5. Anti-rotation pin; 6. Temperature measuring element hole; 7. Oil inlet groove; 8. Babbitt alloy layer; 9. U-shaped oil guide groove. DETAILED DESCRIPTION

[0020] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0021] In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0022] Please see the attached Figure 1 -Attached Figure 5 The utility model provides a thrust sliding bearing device, comprising a left thrust plate 3, a sliding bearing 1, a right thrust plate 4 and a main shaft 2. The sliding bearing 1 is divided into an upper and lower part. The top of the upper half of the sliding bearing 1 is provided with an anti-rotation pin shaft 5 and a temperature measuring element hole 6. The main shaft 2 is arranged as a three-section stepped shaft. The sliding bearing 1 is sleeved on the intermediate shaft part of the main shaft 2, and the sliding bearing 1 and the main shaft 2 are clearance-fitted. The left thrust plate 3 and the right thrust plate 4 are respectively installed on the left and right sides of the sliding bearing 1, and the left thrust plate 3 and the right thrust plate 4 are both installed on the main shaft 2. The left thrust plate 3 and the right thrust plate 4 are both interference fit with the main shaft 2, and a certain axial clearance is left between the sliding bearing 1 and the left thrust plate 3 and the right thrust plate 4.

[0023] In one embodiment of the present invention, two symmetrically distributed oil inlet grooves 7 are provided on the circumferential surface of the sliding bearing 1 , and both oil inlet grooves 7 are square in shape.

[0024] In one embodiment of the present invention, both end faces and the inner circumferential surface of the sliding bearing 1 are provided with a babbitt alloy layer 8. The surface of the babbitt alloy layer 8 is smooth, which can reduce friction. The babbitt alloy layers 8 on both sides of the sliding bearing 1 are simple planes, which shortens the processing time and reduces the bearing manufacturing cost.

[0025] In one embodiment of the present utility model: a group of U-shaped oil guide grooves 9 uniformly distributed in an annular shape are provided on opposite sides of the left thrust plate 3 and the right thrust plate 4. Each U-shaped oil guide groove 9 is provided with a beveled surface on the side opposite to the rotation direction of the main shaft 2, which is conducive to the formation of an oil film. The oil grooves of the left thrust plate 3 and the right thrust plate 4 are processed once and can be used for a long time without replacement.

[0026] In one embodiment of the present invention, the number of each group of U-shaped oil guide grooves 9 is set to eight.

[0027] Working principle:

[0028] By casting a babbitt alloy layer 8 on the end faces and inner hole of both sides of the sliding bearing 1, friction can be reduced. The babbitt alloy layers 8 on both sides of the sliding bearing 1 are simple planes without complicated oil grooves, which shortens the processing time and reduces the bearing manufacturing cost. The lubricating oil enters from the two oil inlet grooves 7 of the sliding bearing 1, and forms an oil film between the inner hole of the sliding bearing 1 and the rotating main shaft 2, reducing the wear of the supporting direction force; the lubricating oil is squeezed to flow to both sides of the sliding bearing 1, and is discharged through the U-shaped oil guide grooves of the left thrust plate 3 and the right thrust plate 4. The rotating left thrust plate 3, the right thrust plate 4 and the sliding bearing 1 form an oil film, reducing the wear of the axial thrust.

[0029] The above-mentioned front, back, left, right, up and down are all based on the Figure 1 As a benchmark, according to the person's observation perspective, the side of the device facing the observer is defined as the front, the left side of the observer is defined as the left, and so on.

[0030] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0031] It should be noted that the equipment structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. On the premise that those skilled in the art understand the principle of the above-mentioned utility model, they can clearly know the details of its power mechanism, power supply system and control system. The control method of the application document is automatic control through a controller, and the control circuit of the controller can be realized by simple programming by those skilled in the art.

[0032] The standard parts used can be purchased from the market and can be customized according to the description in the specification and drawings. The specific connection methods of each part adopt conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt conventional models in the existing technology, and the components known to technical personnel in this field, their structures and principles can be known to these technical personnel through technical manuals or through conventional experimental methods.

[0033] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments.

[0034] For those skilled in the art, it is possible to make various changes, modifications, substitutions and variations to these embodiments without departing from the principles and spirit of the present invention, and they still fall within the scope of protection of the present invention.

Claims

1. A thrust sliding bearing device, comprising a left thrust plate (3), a sliding bearing (1), a right thrust plate (4) and a main shaft (2), characterized in that: The sliding bearing (1) is divided into two parts, an upper part and an lower part. The top of the upper part of the sliding bearing (1) is provided with an anti-rotation pin shaft (5) and a temperature measuring element hole (6). The main shaft (2) is a three-section stepped shaft. The sliding bearing (1) is sleeved on the middle shaft part of the main shaft (2), and the sliding bearing (1) and the main shaft (2) are clearance-fitted. The left thrust plate (3) and the right thrust plate (4) are respectively installed on the left and right sides of the sliding bearing (1), and the left thrust plate (3) and the right thrust plate (4) are both installed on the main shaft (2). The left thrust plate (3) and the right thrust plate (4) are both interference-fitted with the main shaft (2).

2. A thrust sliding bearing device according to claim 1, characterized in that: Two symmetrically distributed oil inlet grooves (7) are provided on the circumferential surface of the sliding bearing (1), and both of the oil inlet grooves (7) are arranged in a square shape.

3. The thrust sliding bearing device according to claim 1, characterized in that: Both end faces and the inner circumferential surface of the sliding bearing (1) are provided with a Babbitt alloy layer (8), and the surface of the Babbitt alloy layer (8) is smooth.

4. The thrust sliding bearing device according to claim 1, characterized in that: A group of U-shaped oil guide grooves (9) evenly distributed in an annular shape are provided on opposite sides of the left thrust plate (3) and the right thrust plate (4).

5. The thrust sliding bearing device according to claim 4, characterized in that: Each of the U-shaped oil guide grooves (9) is provided with an oblique surface on the side opposite to the rotation direction of the main shaft (2).

6. The thrust sliding bearing device according to claim 4, characterized in that: The number of each group of U-shaped oil guide grooves (9) is set to eight.

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