KR200186541Y1 - Bearing housing cartridges - Google Patents

Abstract

The bearing housing cartridge according to the present invention is simple and convenient to improve the structure of the bearing housing cartridge (1) of the roller supporting the belt in the belt conveyor which is widely used in various logistics transfers, thereby reducing the production cost of the rollers and the product life. The ball bearing 4 is accommodated by the noise prevention plate 13 even if the ball 7 and the groove 8 of the ball bearing 4 are worn out after a certain period of use of the roller. By maintaining the verticality of the inner race 9 and the outer race 10 as it is, it is possible to minimize the noise and vibration of the roller, at least one or more on the sealing member by taking advantage of the labyrinth seal of the sealing member (5) By forming a multi-lip (11) to reduce friction with the shaft (15) to minimize the entry of foreign matter such as grease and dust to the gap with the shaft, bearing housing Insert the ball bearing 4, the shiring member 5 and the retaining washer 6 into the inner circumference of the deep drawing section 16 of the gong 3, and then form the projection 12 by caulking, embossing or stamping. By finishing them, it is possible to fundamentally prevent the reduction of work process and the occurrence of product defects, compared to the conventional snap ring fixing.

Description

Bearing housing cartridges

The present invention relates to a bearing housing cartridge which is well suited to the roller of the belt conveyor used for various logistic conveyance, more specifically, to extend the life of the bearing housing cartridge, easy to maintain and repair, as well as to the belt conveyor system The present invention relates to an improved bearing housing cartridge which can minimize noise and vibration of the installed roller and block foreign substances such as grease and dust into the bearing housing cartridge.

Belt conveyor system is a very important component to realize logistics automation in various logistics automation. In this way, the belt conveyor system that automates the transport of the logistics is mostly driven by the belt from the drive means, and by a plurality of rollers installed on these belts to automatically transport the logistics as a desired distance, even if the transported distance of the logistics Therefore, although the number of installation of the rollers is different, a large number of rollers are installed in one belt conveyor.

The belt supporting rollers are one of the most important components in the belt conveyor system.These rollers must have the basic ability to always support the belt correctly and to support the dynamic load of the package. It should be kept in good condition, transported logistics without spills, no pollution or noise during operation, and the installation price should be reasonable.

The rollers applied to the belt conveyor system include a carrier roller for supporting the belt on the side of conveying goods, a return roller for supporting the belt on the return side, and a trough for supporting the belt in a trough state. Rollers, transition rollers with varying trough angles, flat rollers to support the belt flat, impact rollers to mitigate impact of cargo, careful rollers to adjust the knitting of the belt, and belt The guide roller which regulates the direction of a ship or a cargo, and the suspension trough roller which connects several rollers with a link, and supports a belt in trough state.

The rollers of the belt conveyor were originally made of brass plain bearings on the cast iron rollers, and the oil supply was made by punching the grease into the grease cups by drilling holes in the shafts, and the carrier rollers mainly used the V-type two rollers in the center bracket. It became.

However, with the development of the industry, many belt conveyors have been adopted in the yards of coal mines and harbors. Trough rollers with ball bearings have been used for steel pipe rollers. .

The cast iron rollers are used in places where the frequency of use and consumption are high. Some products are made of a centrifugal cast iron pipe made of a mold by the super-dravo method. This has an excellent advantage in the hardness and corrosion resistance of the pipe surface, and the roller of the general steel pipe material has a number of advantages, such as light weight and low resistance of the rotating part to reduce power consumption and belt tension.

Steel pipe rollers are mainly made of carbon steel pipes for pipes, and some centrifugal mold steel pipes for water supply are also used, but recently, heavy-duty mechanical structural carbon steel pipes (STKM) have been used for heavy loads. In addition, vinyl chloride pipes, resin pipes, hard chrome plated pipes, stainless steel pipes, etc. are used in today's wide range of industries, and rollers coated with bakelite lining or rubber lining are used for the sealing tube.

As the sealing member for sealing the roller, it has been changed from the felt ring, which has been used for a long time, to a rubber oil sealing ring, and recently, a labyrinth thread of a non-contact type has been used for a high performance roller.

The structure of the rotating part of the belt conveyor roller is used for light loads that are used at low speeds and difficult repairs, and for heavy loads used for medium speeds and belt widths of less than 600 mm, and for heavy loads that require dust and water resistance. It is roughly divided into three kinds.

In addition, depending on the manufacturer, it may be further subdivided in consideration of the use conditions such as load, belt speed, maintenance difficulty, and the environment of the installation site. As an example, the rotary part of the light load roller, which is subdivided for the logistics system or the process work, expects only the sealing effect of the ball bearing itself in the seal function, and attaches a bearing cover to prevent the inflow of dust directly from the outside. Things.

In addition, the rotating part structure for heavy loads has been further developed to meet the industrial demands of long distance, large capacity, and high speed. Among them, the sealing member is particularly important, so it is most ideal to prevent dust or water from invading from the outside under any use conditions and to have a long life so that it does not need to be replaced frequently.

Therefore, the developed roller is designed to reduce running resistance and improve bearing cover for dustproof and waterproof by non-contact labyrinth mechanism with high speed rotation performance, and the bearing housing is generally capable of deep-drawing. By using high quality cold-rolled steel sheet, the machine is polished again after precision press processing, ensuring assembly accuracy and overall eccentricity. This can be expected to further improve the performance by adopting the automation of the production process and assembly line of the roller.

However, such a ring member has a disadvantage in that it is structurally complicated and difficult to manufacture and costly, and after a certain period of time, the ball of the ball bearing stored in the bearing housing and the groove for accommodating the ball are worn out. Of inner race and outer race are not matched with each other, which causes extreme noise and vibration, causing environmental pollution, and it is very difficult to maintain and repair individual rollers among numerous rollers, as well as obstacles in performance due to noise and vibration. The factor had the disadvantage of occurring.

Looking at the noise generation of the belt conveyor roller having a shiring member made of a general non-contact labyrinth seal, it can maintain approximately 58 ~ 75 decibels at the beginning of the installation of the belt conveyor roller, but each component as the service life of the roller increases The amount of noise and vibration is increased due to wear of parts. Since the noise level regulated by the government is 55 decibels, it is currently producing noise and vibration that are out of government regulation at the beginning of installation.

In addition, bearing housings are generally machined after precision press processing using high-quality cold-rolled steel sheets that can be deep-drawn, ensuring assembly accuracy and overall eccentricity. In the method of inserting ball bearings, shiring members and retaining washers, and fixing them in the bearing housings, forming a groove or fixing jaw in the inner circumference of the bearing housing, and then fixing them with a separate snap ring so that the snap rings are in use. This wear caused a failure, and it is difficult to maintain and repair each of the rollers as a whole, as well as the manufacturing process of the bearing housing and the snap ring has had the disadvantage of raising the production cost of the roller.

The present invention was developed in order to solve the above problems, the bearing housing cartridge of the present invention is simply and conveniently the bearing housing cartridge structure of the roller supporting the belt in the belt conveyor used for logistics transport of various industrial sites It is possible to reduce the production cost of the rollers, to extend the life of the product, to facilitate maintenance and repair, and to maintain the inner and outer races of the ball bearings even if the balls and grooves of the ball bearings wear out after a certain period of use. By maintaining the verticality, the noise generated by the roller can be minimized up to 48 ~ 53 decibels, which is below the government regulation, and at least one multi-lip (MULTI-LIP) on the sealing member by utilizing the advantages of labyrinth seals By reducing the friction with the shaft It minimizes the entry of foreign substances such as dust, inserts ball bearings, sealing members and retaining washers into the bearing housings, and finishes them by caulking, embossing, or stamping. Compared to fixing, it is possible to fundamentally prevent the reduction of work process and the occurrence of product defects.

In order to achieve the above object, the bearing housing cartridge of the present invention has a bearing housing having a deep drawing portion for accommodating a ball bearing, a shiring member and a retaining washer, and a ball bearing inserted into the bottom surface of the deep drawing portion of the bearing housing. And a sealing member inserted into the ball bearing in contact with the ball bearing to block entry of foreign substances such as grease and dust between the shaft and a retaining washer installed in contact with the sealing member to fix one side thereof. It is.

1 is a partially cutaway perspective view of a bearing housing cartridge showing a preferred embodiment of the present invention

2 is a longitudinal longitudinal cross-sectional view of FIG. 1;

3 is a longitudinal cross-sectional view of a bearing housing cartridge showing another embodiment of FIG.

Figure 4 is an installation state showing a state in which the bearing housing cartridge of the present invention is installed on the roller of the belt conveyor

＊ Code explanations for main parts of the drawings ＊

1: bearing housing cartridge 2: roller

3: bearing housing 4: ball bearing

5: shiring member 6: retaining washer

7: ball 8: groove

9: inner race 10: outer race

11: multi-lip 12: projection

13: Soundproof plate 14: Tube

15: shaft 16: deep drawing unit

1, 2,

Reference numeral 1 denotes a bearing housing cartridge showing a preferred embodiment of the present invention, wherein the bearing housing cartridge 1 of the present invention is configured of a belt conveyor or another type of industrial machine applied to logistic transportation of various industrial sites. It can be applied to a wide range of elements.

4 shows a state in which the bearing housing cartridge 1 of the present invention is applied to the roller 2 of the belt conveyor, although the scope of application of the bearing housing cartridge 1 of the present invention to the roller 2 of the belt conveyor is shown. Although the applied state is demonstrated as an Example, it is not limited to the roller 2 of a belt conveyor.

When the bearing housing cartridge 1 of the present invention is applied to the roller 2, a pair is fixedly fixed by welding at both ends of the tube 14 made of a cold rolled steel sheet as shown in FIG. 4, and a shaft ( 15) is condensed and becomes the completed roller 2.

When the bearing housing cartridge 1 of the present invention is applied to the roller 2, the roller 2 is divided into a tube 14, a shaft 15, and a bearing housing cartridge 1.

The tube 14 serves to support and transport the belt in direct contact with the belt. The tube 14 has a roundness of the pipes that influences the life of the roller.

The bearing housing cartridge (1) of the present invention accommodates a ball bearing (4), a shiring member (5) and a retaining washer (6) inside a precision assembled bearing housing (3), and is caulking, embossing, or stamping. The projections 12 are formed to finish the production. At this time, the bearing housing cartridge 1 is welded to be integrated with the tube 14.

The bearing housing cartridge 1 of the present invention is formed by deep drawing, and has a bearing housing 3 having a deep drawing portion 16 for accommodating a ball bearing, a shiring member, and a retaining washer to be described later, and a dip of the bearing housing. A ball bearing 4 inserted into the bottom surface of the drawing portion 16, a sealing member 5 in contact with the ball bearing to block entry of foreign matter such as grease and dust between the shaft 15, and the sealing member It consists of a retaining washer 6 which abuts on and fixes one side thereof.

The ball bearing 4 is inserted into the bottom surface of the deep drawing portion 16 of the bearing housing 3, and the ball bearing has a rectangular or round ball 7 of a general shape, a groove 8 surrounding the ball and And an inner race 9 and an outer race 10 for supporting them, and the ball bearing 4 is generally formed of a tube 14 around the shaft 15 in a roller 2 having a rotational motion. It is to help smooth rotation.

And the ring member 5 is formed at least one or more multi-lips 11, the front end of the multi-lips 11 are formed to be inclined by a predetermined angle, such as 15 ° to outward as shown in Figs. As the material of the shiring member 5, a material such as polyurethane or nylon may be used.

The sealing member 5 serves to prevent the grease in the bearing housing 3 from leaking to the outside by the multi-lips 11 and to prevent external dust and the like from penetrating into the inside. At least one of the multi-lips 11 formed in 5) to form the structure of the labyrinth seal inclined outward to the shaft 15 to reduce the friction between the shiring member 5 and the shaft 15 and to prevent the leakage of grease. .

Therefore, the sealing member 5 prevents the grease inside from leaking to the outside through the shaft 15 and the bearing housing cartridge 1 while being installed in the bearing housing cartridge 1 by the multi-lips 11. In addition, to prevent foreign substances such as water and dust from entering the bearing housing cartridge (1) from the outside.

On the other hand, the retaining washer (6) serves as a stopper to lock the ball bearing (4) and the sealing member (5) in the deep drawing portion 16 of the bearing housing (3), the retaining Assembling of the washer 6 involves inserting the ball bearing 4, the shiring member 5 and the retaining washer 6 into the deep drawing portion 16 of the bearing housing 3 sequentially, and then caulking or embossing the deep drawing portion. Machining or stamping to form at least three projections 12 to firmly fix the ball bearings 4, the shiring member 5 and the retaining washer 6 to the deep drawing portion 16 of the bearing housing 3. To make it possible.

Therefore, by forming at least three or more projections 12 on the outer circumference of the deep drawing portion 16 of the bearing housing 3, the reduction of the work process and the reduction of the product compared to fixing the ball bearings and the shiring member with snap rings as in the prior art. It is possible to minimize defects, noise and vibration.

3 shows another embodiment of the present invention, in which the bearing housing cartridge of the present embodiment is similar in structure to the bearing housing cartridge 1 of FIG. 2, but the deep drawing portion 16 of the bearing housing 3 described above. Between the inner circumferential bottom surface and the ball bearing 4 is inserted into the noise prevention plate 13 to block the noise and vibration to extend the life of the product.

The noise prevention plate 13 may be made of polyurethane, nylon, steel, copper, or the like, and the noise prevention plate 13 may be worn with the ball 7 and the groove 8 of the ball bearing 4. Even if the position of the ball bearing (4) until the end of its life to hold it in place to reduce vibration and noise.

Therefore, the noise prevention plate 13 prevents the noise and vibration generated from these parts from leaking to the outside, and also extends the service life of the ball bearing 4, and after using the roller 2 for a certain period of time, the ball bearing Although the balls 7 and the grooves 8 of 4 are worn out, the verticality of the inner race 9 and the outer race 10 which accommodates the balls 7 and the grooves 8 of the ball bearings 4 is determined by the ball bearings ( As long as the service life of 4) can be maintained, the noise generated by the roller 2 can be minimized to within 48 to 53 decibels, which is below the government regulation.

The bearing housing cartridge 1 of the present invention configured as described above includes a bearing housing 3 having a deep drawing portion for accommodating the ball bearing and the shiring member, and a ball bearing 4 inserted into the bottom surface of the deep drawing portion of the bearing housing. , A sealing ring 5 which contacts the ball bearing to block the entry of foreign substances such as grease and dust between the shaft 15 and a retaining washer 6 that contacts the sealing ring and fixes one side thereof. By configuring)

In the belt conveyor used for logistics transportation of various industrial sites, the structure of the bearing housing cartridge (1) of the roller (2) supporting the belt is simply and conveniently improved to reduce the production cost of the roller and to extend the service life of the product. As well as to minimize the noise and vibration generated during the rotation of the roller 2, the maintenance and repair of the roller is very easy.

In addition, the bearing housing cartridge 1 according to the present invention constitutes at least one or more multi-lips 11 on the sealing member 5 to prevent grease in the bearing housing 3 from leaking to the outside, external dust, etc. The bearing housing is prevented from infiltrating into the bearing housing, and the at least one multi-lip 11 formed in the seal member 5 forms the structure of the labyrinth chamber to be inclined outwardly to the shaft 15 so as to seal the seal member 5. To reduce the friction of the shaft 15 and to prevent the leakage of grease.

In addition, the bearing housing cartridge 1 according to the present invention locks the ball bearing 4 and the sealing member 5 to the deep drawing portion 16 of the bearing housing 3, and closes the retaining washer 6, and then the bearing housing ( 3) Deep drawing part caulking, embossing or stamping to form at least three projections (12) by reducing the work process and the reduction of the product compared to fixing the ball bearing and the sealing member by a separate snap ring as in the prior art It can minimize defects, noise and vibration.

In addition, the bearing housing cartridge 1 according to the present invention inserts a noise preventing plate 13 to block noise and vibration between the inner peripheral surface of the deep drawing portion 16 of the bearing housing 3 and the ball bearing 4. By fixing, the noise and vibration generated at these parts are prevented from leaking to the outside, and the ball bearings 4 and the grooves 8 of the ball bearings 4 are worn out after a certain period of use. Can maintain the verticality of the inner race (9) and the outer race (10) for accommodating the ball and groove of the ball bearing (4) until the service life of the ball bearing (4) as it is 48 ~ 53 de It can be minimized to within the civil, it is possible to extend the service life of the ball bearing (4).

As described above, the bearing housing cartridge 1 according to the present invention is a belt conveyor in which various logistic transfers are widely used in an industrial site, and thus the roller housing cartridge structure of the roller supporting the belt is simply and conveniently improved to produce rollers. Not only reduces the cost, extends the service life of the product, is very easy to maintain and repair, but also prevents the wear of the ball bearings (4) and the grooves (8) of the ball bearings after a certain period of use. By maintaining the verticality of the inner race (9) and the outer race (10) for accommodating the ball of the ball bearing (4) as it can be minimized the noise and vibration of the roller, the sealing member (5) labyrinth seal At least one multi-lip (11) formed on the shiring member to maximize the advantages of the friction to reduce the friction with the shaft 15, far away from the grease in the shaft and clearance It restrains the entry of foreign matters, etc. as much as possible, inserts the ball bearing 4 and the shiring member 5 into the bearing housing 3, blocks the retaining washer 6, and turns it into a caulking, embossing or stamping process ( 12) by forming them and finishing them, there is a special feature and advantages, such as to reduce the work process and to prevent the occurrence of defects of the product, compared to the conventional snap ring fixed.

Claims (4)

A bearing housing 3 having a deep drawing portion 16 for accommodating the ball bearing and the shiring member, a ball bearing 4 inserted into the bottom surface of the deep drawing portion 16 of the bearing housing, and abutting the ball bearing. And a retaining washer 6 between the shaft 15 and a seal member 5 for blocking the entry of foreign substances such as grease and dust, and a retaining washer 6 which is in contact with the seal member and fixes one side thereof. Characteristic bearing housing cartridge. The method of claim 1, A bearing housing cartridge formed by inserting an anti-noise plate (13) that blocks noise and vibration between the deep drawing portion (16) of the bearing housing (3) and the inner peripheral bottom of the bearing housing (3) and the ball bearing (4). The method of claim 1, At least one multi-lip (11) is formed on the inner circumference of the seal member (5), wherein the multi-lip (11) is formed in the bearing housing cartridge inclined at an angle to the outward to the shaft (15). The method of claim 1, Insert the ball bearing 4, the shiring member 5 and the retaining washer 6 in the inner circumference of the deep drawing portion 16 of the bearing housing 3, and then turn into a caulking, embossing or stamping process. A bearing housing cartridge characterized by forming 12 and finishing them.