High-temperature-resistant deep groove ball bearing

Abstract

The utility model discloses a high-temperature-resistant deep groove ball bearing and relates to the technical field of bearings. The bearing comprises an inner ring, the inner ring is sleeved outside the inner ring, a plurality of balls are arranged between the inner ring and an outer ring, the plurality of balls are positioned through a nickel-based alloy retainer, and a graphite cushion block is embedded in the inner side of the nickel-based alloy retainer; the upper end and the lower end of the inner ring and the upper end and the lower end of the outer ring are each provided with an embedding groove for installing the corresponding annular dustproof cover, spring bolt plates are movably connected to the inner side walls and the outer side walls of the two annular dustproof covers correspondingly, the spring bolt plates on the two sides penetrate into sliding grooves in the middles of the two embedding grooves correspondingly, and auxiliary steel balls for reducing friction are arranged on the surfaces of the spring bolt plates at equal intervals. The nickel-based alloy retainer is matched with the graphite cushion blocks to play a high-temperature-resistant role on the retainer, compared with a traditional steel plate retainer and a brass retainer, the heat resistance is improved, and the graphite cushion blocks can insulate heat between the retainer and the balls.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bearing field, concretely relates to a high temperature resistant deep groove ball bearing. BACKGROUND

[0002] At present, the domestic cooling bed mainly adopts high temperature bearing, adopts the steel plate stamping retainer or brass retainer in the bearing, but the retainer of the two kinds of bearings is not high temperature resistant, under the high temperature condition, the bearing inner lubricating grease will volatilize, therefore needs to dismantle the dust cover regularly and supplements the lubricating grease, the existing dust cover is difficult to dismantle, in view of this, the utility model is presented. UTILITY MODEL CONTENTS

[0003] The utility model solves the technical problem in at overcoming the prior art's insufficient, provides a high temperature resistant deep groove ball bearing.

[0004] In order to solve the above technical problem, the basic concept of technical scheme of the utility model is:

[0005] A high temperature resistant deep groove ball bearing, including the inner ring, the outer part of the inner ring is equipped with the inner ring, is equipped with a plurality of ball bearings between the inner ring and the outer ring, a plurality of ball bearings are positioned by nickel base alloy retainer, the inner side of the nickel base alloy retainer is embedded with graphite pad block;

[0006] The upper and lower ends of the inner ring and the outer ring are provided with embedded grooves for installing annular dust covers, and lock tongue plates are movably connected to the inner side walls and the outer side walls of the two annular dust covers, the two lock tongue plates are respectively inserted into the sliding grooves in the middle parts of the two embedded grooves, and the surfaces of the lock tongue plates are provided with auxiliary steel balls at equal intervals for reducing friction, and the surfaces of the auxiliary steel balls are in contact with the surfaces of the annular graphite blocks in the middle parts of the sliding grooves.

[0007] The middle parts of the two annular dust covers are provided with supplement cavities for supplementing lubricating grease.

[0008] Optionally, the inner side and the outer side of the annular dust cover are provided with cavities for the extension and retraction of the lock tongue plates, a return spring is arranged between the cavity and the lock tongue plate, and a V-shaped pulling rod is fixedly installed on the one side and the upper end of the lock tongue plate.

[0009] Optionally, the V-shaped pulling rod is inserted into the middle part of the accommodation groove, and the accommodation groove is arranged at the upper end of the sealing cover, and the sealing cover is fixedly connected with the annular dust cover through the fixing bolt.

[0010] Optionally, a hard film is fixedly arranged on the inside and the upper side of the supplement cavity, and a cross groove is arranged in the middle part of the hard film.

[0011] Optionally, the bottom of the supplementary cavity communicates with a groove in the bottom of the annular dustproof cover, a sealing plate for sealing the bottom of the supplementary cavity is hinged in the groove, and a torsional spring is arranged between the sealing plate and the groove.

[0012] Optionally, a sealing gasket is attached to the upper end of the sealing plate.

[0013] Compared with the prior art, the utility model has the following beneficial effects, of course, any product implementing the utility model does not necessarily need to achieve all the advantages described below:

[0014] The nickel-based alloy retainer cooperates with the graphite pad to provide high-temperature resistance for the retainer, and the graphite pad can insulate the retainer and the ball, and the retainer is made of nickel-based alloy, which has good heat resistance and corrosion resistance, so that the ball is not dislocated due to deformation even at high temperature, and the supplementary cavity for injecting lubricating grease is arranged in the middle of the annular dustproof cover, and the sealing plate and the hard film are designed to prevent the lubricating grease from overflowing, and the sealing plate is in contact with the torsional spring to open the sealing plate when the injection nozzle is inserted into the supplementary cavity to supplement the lubricating grease, and the hard film prevents dust from entering the bearing when the lubricating grease is injected.

[0015] The specific embodiments of the utility model will be further described in detail below with reference to the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0016] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor. In the drawings:

[0017] Figure 1 It is a front view of the structure of the utility model;

[0018] Figure 2 It is a top view of the combined parts structure of the annular dustproof cover, the locking tongue plate and the sealing cover in the utility model;

[0019] Figure 3 It is a combined parts structure diagram of the locking tongue plate and the V-shaped rod in the utility model;

[0020] Figure 4 is a combined part structure diagram of the annular graphite block in the utility model;

[0021] Figure 5 is Figure 1 A part structure schematic view in the utility model;

[0022] Figure 6 is Figure 1 B part structure schematic view in the utility model.

[0023] In the drawings, the component list represented by each mark is as follows:

[0024] 1, inner ring; 2, outer ring; 3, ball; 4, nickel-based alloy retainer; 5, graphite pad; 6, annular dust cover; 7, lock tongue plate; 8, sliding groove; 9, auxiliary steel ball; 10, annular graphite block; 11, supplementary cavity; 12, cavity; 13, reset spring; 14, V-shaped pull rod; 15, accommodation groove; 16, sealing cover; 17, fixing bolt; 18, hard film; 19, sealing plate; 20, torsion spring; 21, connecting column; 22, sealing gasket.

[0025] It should be noted that these drawings and textual descriptions are not intended to limit the concept range of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail in combination with the drawings.

[0027] Please refer to Figures 1 to 6 The utility model provides a technical scheme: a high-temperature-resistant deep groove ball bearing, which comprises an inner ring 1, the outer part of the inner ring 1 is provided with an inner ring 1, a plurality of balls 3 are arranged between the inner ring 1 and an outer ring 2, the plurality of balls 3 are positioned by a nickel-based alloy retainer 4, the inner side of the nickel-based alloy retainer 4 is inlaid with a graphite pad 5;

[0028] The upper and lower ends of the inner ring 1 and the outer ring 2 are both provided with embedded grooves for installing annular dust covers 6, lock tongue plates 7 are movably connected to the inner side wall and the outer side wall of the two annular dust covers 6, the two lock tongue plates 7 are respectively penetrated into sliding grooves 8 in the middle of the two embedded grooves, the surface of the lock tongue plate 7 is provided with auxiliary steel balls 9 for reducing friction at equal intervals, and the surface of the auxiliary steel ball 9 is in contact with the surface of an annular graphite block 10 in the middle of the sliding groove 8;

[0029] The middle part of the two annular dust covers 6 is provided with a supplement cavity 11 for supplementing lubricating grease, at present, domestic cooling beds mainly adopt high-temperature bearings, and steel plate stamping retainer or brass retainer is adopted in the bearing, but the retainers of the two bearings are not resistant to high temperature, and the lubricating grease in the bearing will volatilize under high temperature, therefore, it is necessary to regularly dismount the dust cover to supplement the lubricating grease, in the case that the existing dust cover is difficult to dismount, the nickel-based alloy retainer 4 cooperates with the graphite pad 5 to play a role of being resistant to high temperature, compared with the traditional steel plate retainer and brass retainer, the heat resistance is improved, the graphite pad 5 can heat insulate between the retainer and the ball 3, and the retainer of the utility model is made of nickel-based alloy material, and has good heat resistance and corrosion resistance, so that the ball 3 will not be dislocated due to deformation under high temperature, and in order to facilitate the maintenance personnel to inject the lubricating grease between the inner ring 1, the outer ring 2 and the ball 3 without dismounting the annular dust cover 6, the supplement cavity 11 for injecting the lubricating grease is arranged in the middle part of the annular dust cover 6, and in order to prevent the lubricating grease from overflowing, the sealing plate 19 and the hard film 18 are designed, the sealing plate 19 is abutted by the return spring 13, so that when the injection nozzle for adding the lubricating grease is inserted into the supplement cavity 11 to open the sealing plate 19, the supplement of the lubricating grease can be completed, when the injection nozzle is not inserted into the supplement cavity 11, the sealing plate 19 abuts against the bottom of the supplement cavity 11 to prevent the lubricating grease from leaking, and the existence of the hard film 18 prevents the dust from entering the supplement cavity 11 and then entering the bearing together with the injected lubricating grease, and considering that the inner ring 1 rotates to rub against the side wall of the annular dust cover 6, the auxiliary steel ball 9 for reducing the friction is arranged on the side wall of the lock tongue plate 7, and in order to ensure the smoothness of the auxiliary steel ball 9 when rotating, the annular graphite block 10 is arranged in the sliding groove 8, and the ball 3 is lubricated by the annular graphite block 10, that is, the essence of the annular graphite block 10 is a solid lubricant.

[0030] Wherein, the inner side and the outer side of the annular dust cover 6 are provided with cavities 12 for the extension of the lock tongue plate 7, the return spring 13 is abutted between the cavity 12 and the lock tongue plate 7, and the V-shaped pull rod 14 is fixedly installed on the side upper end of the lock tongue plate 7, when the annular dust cover 6 needs to be dismounted for replacement and maintenance of the ball 3 in the bearing, the V-shaped pull rod 14 can be directly pulled to make the lock tongue plate 7 retract to the inside of the cavity 12, so that the annular dust cover 6 can be taken off from the inner ring 1 and the outer ring 2.

[0031] Wherein, the V-shaped pull rod 14 penetrates to the middle part of the accommodation groove 15, and the accommodation groove 15 is arranged at the upper end of the sealing cover 16, the sealing cover 16 is fixedly connected with the annular dust cover 6 through the fixed bolt 17, and the fixed bolt 17 plays a role of fixing between the sealing cover 16 and the annular dust cover 6, which facilitates workers to assemble the lock tongue plate 7 and the return spring 13 in the cavity 12.

[0032] The inside upper side of the supplement cavity 11 is fixed with a hard film 18, a cross slot is arranged in the middle of the hard film 18, and the hard film 18 is arranged to prevent dust from entering the supplement cavity 11 without affecting the supplement of lubricating grease through the oil nozzle later.

[0033] The bottom of the supplement cavity 11 is communicated with the groove at the bottom of the annular dustproof cover 6, a sealing plate 19 for sealing the bottom of the supplement cavity 11 is hinged in the groove, the sealing plate 19 is abutted by a torsion spring 20 between the sealing plate 19 and the groove, a connecting column 21 for sleeving the torsion spring 20 is fixed on one side of the groove, and the torsion spring 20 is arranged to abut the sealing plate 19, so that the sealing plate 19 can seal the bottom of the supplement cavity 11 and prevent dust from entering the inside of the bearing.

[0034] The upper end of the sealing plate 19 is bonded with a sealing gasket 22, the sealing gasket 22 is arranged to further seal the contact surface between the surface of the sealing plate 19 and the supplement cavity 11, and the sealing gasket 22 prevents the existence of gaps in the sealing part due to pits on the surface of the sealing plate 19.

[0035] The utility model is not limited to the above-mentioned embodiment, any person should know the structural change made under the inspiration of the utility model, any technical scheme with the same or similar utility model falls into the protection scope of the utility model. The utility model is not described in detail, and the technical, shape and structure parts are known technology.

Claims

1. A high temperature resistant deep groove ball bearing comprising an inner ring (1), characterized in that, The outer part of the inner ring (1) is sleeved with the inner ring (1), a plurality of balls (3) are arranged between the inner ring (1) and the outer ring (2), the plurality of balls (3) are positioned by a nickel-based alloy retainer (4), the inner side of the nickel-based alloy retainer (4) is inlaid with a graphite pad (5); The upper and lower ends of the inner ring (1) and the outer ring (2) are provided with embedded grooves for installing annular dust covers (6), the inner side wall and the outer side wall of the two annular dust covers (6) are movably connected with lock tongue plates (7), the two lock tongue plates (7) are respectively penetrated into the sliding grooves (8) in the middle of the two embedded grooves, the surface of the lock tongue plate (7) is provided with auxiliary steel balls (9) at equal intervals for reducing friction, and the surface of the auxiliary steel ball (9) is in contact with the surface of the annular graphite block (10) in the middle of the sliding groove (8). The middle part of the two annular dust covers (6) is penetrated and provided with a supplement cavity (11) for supplementing lubricating grease.

2. The high temperature resistant deep groove ball bearing of claim 1, wherein, The inner side and the outer side of the annular dust cover (6) are provided with cavities (12) for the expansion of the lock tongue plate (7), the reset spring (13) is in contact between the cavity (12) and the lock tongue plate (7), and the V-shaped pull rod (14) is fixedly installed on one side of the upper end of the lock tongue plate (7).

3. The high temperature resistant deep groove ball bearing of claim 2, wherein, The V-shaped pull rod (14) penetrates the middle part of the accommodation groove (15), and the accommodation groove (15) is arranged at the upper end of the sealing cover (16), and the sealing cover (16) is fixedly connected with the annular dust cover (6) through the fixed bolt (17).

4. The high temperature resistant deep groove ball bearing of claim 1, wherein, The inside of the supplement cavity (11) is fixedly provided with a hard film (18), and a cross groove is arranged in the middle of the hard film (18).

5. The high temperature resistant deep groove ball bearing of claim 1, wherein, The bottom of the supplement cavity (11) is in communication with the groove in the bottom of the annular dust cover (6), the sealing plate (19) for sealing the bottom of the supplement cavity (11) is hinged in the groove, the sealing plate (19) and the groove are in contact through the torsional spring (20), and the inside of the groove is fixedly provided with a connecting column (21) for sleeving the torsional spring (20).

6. The high temperature resistant deep groove ball bearing of claim 5, wherein, The upper end of the sealing plate (19) is bonded with a sealing gasket (22).

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