Shaft connection bearing with dustproof assembly

Abstract

The shaft connecting bearing comprises a combined shaft sleeve, outer thread sleeves are symmetrically fixed to the left side and the right side of the combined shaft sleeve, sealing ring plates are arranged on the opposite sides of the outer thread sleeves in a threaded fit mode, sleeves are fixed to the centers of the opposite sides of the sealing ring plates in a communicated mode, and the outer thread sleeves are sleeved with the sleeves. Outer sliding pipes are arranged on the inner sides of the sleeves in a left-right sliding fit mode, inner sliding pipes are erected at the centers of the inner sides of the outer sliding pipes, and a plurality of layers of annular filter screens are fixed between the inner sliding pipes and the outer sliding pipes at equal intervals in the left-right direction. The efficient transmission state of the rotating shaft is kept, the sleeve is used for prolonging the circulation path inside and outside the bearing, the outer sliding pipe is arranged to be matched with the multiple annular filter screens to conduct multi-stage filtering on air flowing through the channel, then the dust filtering strength is improved, and the problem that dust enters the bearing to cause pollution is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of shaft connecting bearing, especially to a shaft connecting bearing with dustproof assembly. BACKGROUND

[0002] The shaft connecting bearing is a double supporting bearing with simplified structure, the two supporting bearings have no inner sleeve ring, the rolling track of the rolling body is directly made on the shaft, the outer sleeve ring of the two supporting bearings is made into a whole, the two sides of the sleeve ring are sealed by the sealing element, the assembly of the shaft sleeve is formed, under the same load capacity condition, the radial dimension is smaller than that of the general type bearing, under the same radial dimension condition, the load capacity is larger than that of the general type bearing.

[0003] Since the inner ring is directly matched with the rotating shaft, the rotating shaft extends out of the outer side of the shaft sleeve, a ring groove is formed between the rotating shaft and the shaft sleeve, the inside and outside are communicated, the bearing inside continuously generates heat during the continuous rotating work of the rotating shaft, the internal air expands and is discharged along the ring groove, the bearing inside is cooled after the rotating shaft stops working, the external air enters the bearing inside, and the dust in the external air easily enters the bearing inside to cause pollution and affect the transmission efficiency. UTILITY MODEL CONTENTS

[0004] The utility model discloses a kind of shaft connecting bearings with dustproof assembly, can carry out multistage filtration to the air circulation inside and outside bearing while keeping the efficient transmission state of rotating shaft, to further improve its dust filtration strength, avoid dust to enter bearing inside to cause pollution problem.

[0005] In order to achieve the above object, a shaft connecting bearing with a dustproof assembly is provided, which comprises a combined shaft sleeve, a rotating shaft is arranged on the inner side center of the combined shaft sleeve in the left-right direction, a plurality of rolling balls are rolling fitted between the rotating shaft and the combined shaft sleeve, outer screw sleeves are symmetrically fixed on the left and right sides of the combined shaft sleeve, sealing ring plates are threadedly fitted on the opposite sides of the outer screw sleeves, sleeve sleeves are fixedly connected on the opposite side centers of the sealing ring plates, outer sliding tubes are sliding fitted on the inner sides of the sleeve sleeves, inner sliding tubes are arranged on the inner side centers of the outer sliding tubes, a plurality of layers of annular filter screens are fixedly arranged between the inner sliding tubes and the outer sliding tubes at equal distances in the left-right direction, gaps are reserved between the inner sliding tubes and the rotating shaft, insertion holes are horizontally arranged on the top of the opposite sides of the sleeve sleeves, insertion rods are fitted in the insertion holes, clamping heads are fixedly connected on the opposite ends of the insertion rods, L-shaped frame rods are fixedly connected on the bottom centers of the clamping heads, and the opposite ends of the L-shaped frame rods penetrate through the annular filter screens and are fixedly connected therewith. The outer side of the rotating shaft is isolated and covered by the symmetrically arranged sealing ring plates and sleeve sleeves without being in contact with the rotating shaft, so that the efficient transmission state of the rotating shaft is maintained. The circulation path inside and outside the bearing is extended by the sleeve sleeves, and the outer sliding tubes are used to cooperate with the multiple annular filter screens to perform multi-stage filtering on the air flowing in the circulation path, thereby improving the dust filtering strength and avoiding the pollution caused by the dust entering the inside of the bearing. The inner ring tube is arranged to isolate the annular filter screen and the rotating shaft to avoid the dust falling on the rotating shaft and accumulating to cause pollution.

[0006] According to the shaft connecting bearing with the dustproof assembly, a sliding film is arranged on the outer side surface of the outer sliding tube, and the sliding film is slidingly attached to the inner side surface of the sleeve sleeve. The sliding film facilitates the smooth taking and placing of the outer sliding tube, avoids friction loss and generation of waste chips, and prevents the waste chips from entering the inside of the bearing and affecting the normal rolling of the rolling balls.

[0007] According to the shaft connecting bearing with the dustproof assembly, the inner sliding tube is made of a water-absorbing material. The water-absorbing material prevents moisture in the external humid air from entering the inside of the bearing and causing rusting problems.

[0008] According to the shaft connecting bearing with the dustproof assembly, the pore size of the annular filter screen gradually decreases as it approaches the combined shaft sleeve. Different sizes of dust particles are layered and filtered, and the problem of easy and rapid clogging of a single filter screen is avoided.

[0009] According to the shaft connecting bearing with the dustproof assembly, a heat insulation ring sleeve is fixedly arranged on the outer side of the sleeve sleeve, and anti-slip patterns are arranged on the outer side surface of the heat insulation ring sleeve. The heat insulation ring sleeve facilitates the operator to hold the sleeve sleeve and rotate the sleeve sleeve together with the sealing ring plate and the combined shaft sleeve to be tightly connected.

[0010] According to the shaft connecting bearing with the dustproof assembly, a rubber sleeve is arranged on the outer side of the clamping head. The rubber sleeve facilitates the flexible contact and anti-slip protection of the fingers when the fingers pinch and pull out the insertion rod, and prevents the fingers from slipping due to sweating during pulling out, thereby affecting the disassembly and assembly rate.

[0011] The above-mentioned scheme has the beneficial effects of:

[0012] In the utility model, the sealing ring plate and the sleeve are symmetrically arranged to isolate and cover the outer side of the rotating shaft without contacting the rotating shaft, the high efficient transmission state of the rotating shaft is maintained, the circulation path inside and outside the bearing is prolonged by the sleeve, the outer sliding pipe is arranged to cooperate with the multiple annular filter screens to perform multi-stage filtration on the air flowing in the path, the strength of dust filtration is improved, dust is prevented from entering the bearing and causing pollution, and the inner ring pipe is arranged to isolate the annular filter screen and the rotating shaft to prevent dust from falling on the rotating shaft and accumulating to cause pollution.

[0013] The additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0014] The utility model will be further explained in combination with the drawings and embodiments;

[0015] Figure 1 It is a connecting structure schematic view of the sealing ring plate and the combined shaft sleeve in the shaft connecting bearing with the dustproof assembly of the utility model;

[0016] Figure 2 It is a connecting structure schematic view of the outer sliding pipe and the sleeve in the shaft connecting bearing with the dustproof assembly of the utility model;

[0017] Figure 3 It is a distribution schematic view of the annular filter screen in the shaft connecting bearing with the dustproof assembly of the utility model;

[0018] Figure 4 It is a whole schematic view of the shaft connecting bearing with the dustproof assembly of the utility model.

[0019] LEGEND:

[0020] 1, combined shaft sleeve; 2, rotating shaft; 3, outer screw sleeve; 4, sealing ring plate; 5, sleeve; 6, outer sliding pipe; 7, annular filter screen; 8, inner sliding pipe; 9, insertion hole; 10, insertion rod; 11, clamp; 12, L-shaped frame rod; 13, heat insulation ring sleeve. DETAILED DESCRIPTION

[0021] This part will describe the specific embodiments of the utility model in detail, the preferred embodiments of the utility model are shown in the drawings, the drawings are used to supplement the description of the text part in the form of graphics, so that people can intuitively and visually understand each technical feature and the overall technical scheme of the utility model, but it cannot be understood as the limitation of the protection scope of the utility model.

[0022] REFERENCE Figures 1-4The utility model discloses an axle bearing with dustproof assembly, comprising: combined shaft sleeve 1, the inside center of combined shaft sleeve 1 is erected with the rotation axis 2 in left and right directions, a plurality of balls are rolled and fit between rotation axis 2 and combined shaft sleeve 1, the both sides of combined shaft sleeve 1 are fixed with the outer screw sleeve 3, the opposite side of outer screw sleeve 3 is all screwed with the sealing ring plate 4, the opposite side center of sealing ring plate 4 is all connected with the sleeve 5, the outside middle part of sleeve 5 is all surrounded with the heat insulation ring 13, the outside surface of heat insulation ring 13 is equipped with the antiskid line, and the sleeve cooperation sealing ring plate is used to extend the flow path inside and outside the bearing on the outside of rotation axis, and then multiple filtering protection can be carried out in the extended flow path.

[0023] The inside of sleeve 5 is all slid and fit with the outer slide pipe 6, the outside surface of outer slide pipe 6 is all covered with a layer of slip film, and the inside surface of sleeve 5 is all slid and fit with the slip film, the inside center of outer slide pipe 6 is erected with the inner slide pipe 8, the inner slide pipe 8 is made of water absorption material, a plurality of layers of annular filter screens 7 are fixed with equidistance between the inner slide pipe 8 and outer slide pipe 6, the aperture size of annular filter screen 7 gradually decreases with the approach to combined shaft sleeve 1, and the gap is reserved between inner slide pipe 8 and rotation axis 2, and the outer slide pipe is set to cooperate with multiple annular filter screens to carry out multiple filtering to the air flowing in the passage, thereby improving the strength of dust filtering, avoiding the pollution problem caused by the dust into the bearing interior, and the inner ring pipe is set to isolate the annular filter screen and rotation axis outward to avoid the dust falling on the rotation axis and accumulating to cause pollution, and the distance between the inside and rotation axis is kept between 0.1-0.5mm.

[0024] The top of the opposite side of sleeve 5 is all horizontally provided with the insertion hole 9, the insertion hole 9 is all fit with the insertion rod 10, the opposite end of insertion rod 10 is all fixedly connected with the clamping head 11, the bottom center of clamping head 11 is all fixedly connected with the L-shaped frame rod 12, the opposite end of L-shaped frame rod 12 is all penetrated through annular filter screen 7 and fixedly connected with it, the outside of clamping head 11 is covered with rubber sleeve, and the annular filter screen is assisted to be erected and carried out fast taking and placing operation.

[0025] Working principle: in the utility model, the sealing ring plate 4 cooperation sleeve 5 is isolated and coated to the outside of rotation axis 2 but not contacted with rotation axis 2, keeps the high -efficient transmission state of rotation axis 2, utilizes sleeve 5 to extend the flow path inside and outside the bearing and sets up outer slide pipe 6 cooperation multiple annular filter screens 7 to carry out multiple filtering to the air flowing in the passage, thereby improving the strength of dust filtering, avoiding the pollution problem caused by the dust into the bearing interior, and the inner ring pipe is set to isolate annular filter screen 7 and rotation axis 2 outward to avoid the dust falling on rotation axis 2 and accumulating to cause pollution;

[0026] The air in the bearing is replaced and circulated during the process of being heated and cooled, the utility model utilizes the annular filter screen with different sizes to maintain the normal air circulation state and to classify and filter the dust particles in the external air in the passage of the sleeve extension, and to maintain the non-contact high efficient transmission state of the rotating shaft.

[0027] The above has made detailed description to the embodiments of the utility model in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. A shaft coupling bearing having a dust protection assembly, comprising: The utility model provides a combination axle sleeve (1), its characterized in be that the inside center of combination axle sleeve (1) is left and right direction and erects the rotating shaft (2), and a plurality of ball bearings are rolled in between rotating shaft (2) and combination axle sleeve (1), and the both sides symmetry of combination axle sleeve (1) are fixed with outer screw sleeve (3), and the opposite side of outer screw sleeve (3) is all thread cooperation with sealing ring plate (4), and the opposite side center of sealing ring plate (4) is all communicated and fixed with sleeve (5), and the inside of sleeve (5) is all left and right slide cooperation with outer slide tube (6), and the inside center of outer slide tube (6) erects the inner slide tube (8), and a plurality of layers annular filter screen (7) are fixed with between inner slide tube (8) and outer slide tube (6) left and right equidistant, and the clearance is reserved between inner slide tube (8) and rotating shaft (2), and the top of opposite side of sleeve (5) is all horizontally opened and is equipped with the insertion hole (9), and the insertion hole (9) is all cooperation with the insertion rod (10), and the opposite end of insertion rod (10) is all fixedly connected with the clamp head (11), and the bottom center of clamp head (11) is all fixedly connected with L type frame rod (12), and the opposite end of L type frame rod (12) is all through annular filter screen (7) and is connected with fixedly.

2. A shaft coupling bearing having a dust-proof assembly according to claim 1, wherein The outer side of outer slide tube (6) is covered with a layer of synovial membrane, which is in sliding fit with the inner side of sleeve (5).

3. The shaft coupling bearing with a dust-proof assembly according to claim 1, wherein, The inner slide tube (8) is made of water-absorbing material.

4. The shaft coupling bearing with a dust-proof assembly according to claim 1, wherein, The aperture size of annular filter screen (7) gradually decreases as it approaches combination axle sleeve (1).

5. The shaft coupling bearing with a dust-proof assembly according to claim 1, wherein, The outer side of sleeve (5) is surrounded by a heat insulation ring (13) in the middle, and the outer side of heat insulation ring (13) is provided with anti-skid lines.

6. The shaft coupling bearing with a dust-proof assembly according to claim 1, wherein, The outer side of clamp head (11) is covered with a rubber sleeve.

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