Roller / guide roller with bearings embedded at two ends and simple device for disassembling bearings at two ends of roller / guide roller

Abstract

The utility model relates to a roller / guide roller with two ends embedded with bearings and a simple device for dismounting the bearings at the two ends, the device comprises a bottom gasket, a screw-out gasket, a bearing and a screw-out bolt, the bottom gasket is arranged at the bottommost part of the bearing position of the roller / guide roller, then the screw-out gasket and the bearing are sequentially arranged, the center of the screw-out gasket is provided with a threaded hole, and the screw-out bolt is arranged in the threaded hole. No hole is formed in the bottom gasket; the length size of the screwing-out bolt is 2-3 times larger than the thickness size of the bearing, the outer diameter of the long bolt is not larger than the inner diameter of the bearing, and the long bolt can be connected with the threaded hole of the screwing-out gasket in a threaded fit mode. According to the utility model, the bearings embedded at the two ends of the roller / guide roller can be more conveniently detached, and the subsequent maintenance and replacement of the bearings are very simple and convenient.

Description

Technical Field:

[0001] The utility model belongs to the technical field of the machining industry, and particularly relates to a simple device suitable for disassembling the bearings embedded at both ends of a roller / a guide roller. Background Art:

[0002] At present, many mechanical devices in the machining industry use rollers / guide rollers with bearings embedded at both ends. The inner wall structure of the roller / guide roller is mostly designed in a hollow form. At both ends of the roller / guide roller, the inner diameter of the bearing position is based on the outer diameter of the embedded bearing, and the depth dimension of the bearing position is the sum of the thickness of the embedded bearing and the thickness of the bearing retainer. Then the bearing is directly embedded into the bearing position, and a bearing retainer is installed outside to prevent the bearing from coming out easily. If the bearings at both ends of such a roller / guide roller need to be replaced later or need to be pulled out of the bearing position for maintenance, it is very troublesome to disassemble the bearings. If the overall length dimension of the roller / guide roller is short, an iron rod can be inserted into the opening at the other end of the roller / guide roller. After the iron rod abuts against the bearing, the iron rod is struck with a hammer, and the bearing is slowly knocked out from the other end by the iron rod. If the length dimension of the roller / guide roller is too long, it is even more troublesome to strike the bearing with an iron rod and a hammer. Therefore, the disassembly of the bearings embedded at both ends of the roller / guide roller has always troubled everyone. Content of the Utility Model:

[0003] Aiming at the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a simple device suitable for disassembling the bearings embedded at both ends of a roller / a guide roller.

[0004] The technical solution adopted by the utility model to solve the above technical problem is as follows:

[0005] A simple device suitable for disassembling the bearings embedded at both ends of a roller / guide roller, the device includes a bottom gasket 2, a screwing-out gasket 3, a bearing 4, and a screwing-out bolt 5. The bottom gasket is placed at the bottom of the bearing position of the roller / guide roller, and then the screwing-out gasket and the bearing are placed in sequence. A threaded hole is provided in the center of the screwing-out gasket, and there is no hole in the bottom gasket;

[0006] The length dimension of the screwing-out bolt is 2-3 times greater than the thickness dimension of the bearing 4,

[0007] The outer diameter of the long bolt is not greater than the inner diameter of the bearing, and it can be threadedly connected with the threaded hole of the screwing-out gasket.

[0008] Further, the outer diameter of the bottom gasket is 5 / 4 of the outer diameter of the bearing, and the thickness is greater than 3 mm,

[0009] The outer diameter of the screwing-out gasket is 5 / 4 of the outer diameter of the bearing, and the thickness is 3-5 mm. The screwing-out gasket and the bottom gasket are stacked and installed on the bearing position.

[0010] Further, the screwed-out gasket has the same outer diameter, thickness, and material as the bottom gasket. The thickness is 4 mm, and the bottom gasket is made of metal.

[0011] The present utility model also provides a roller / guide roller with bearings embedded at both ends. The depth of the bearing position of the roller / guide roller is set to accommodate the bottom gasket, the screwed-out gasket, and the bearing. The bottom gasket, the screwed-out gasket, and the bearing are fixedly arranged in sequence from the inside to the outside in the bearing position, and a bearing retaining ring is provided for fixed limit.

[0012] Further, the length of the roller / guide roller is 2 - 3 m, and the roller / guide roller is of a hollow structure.

[0013] In the present utility model, the depth dimension of the bearing position is the sum of the thickness dimension of the original bearing and the thickness dimensions of the bottom gasket and the screwed-out gasket. When assembling the bearing, in the first step, the bottom gasket is installed at the bottommost part of the bearing position, then the screwed-out gasket is installed next to the bottom gasket, then the bearing to be installed is installed into the bearing position, and finally the snap ring retaining ring is installed into the snap ring retaining ring groove. When disassembling the bearing, first, the snap ring is removed with a special snap ring pliers, and then the screw-out bolt is directly screwed into the middle threaded hole of the screwed-out gasket.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] The structure of the present utility model is simple, with low cost, convenient for installation, and strong practicability. It can more conveniently disassemble the bearings embedded at both ends of the roller / guide roller, and it is very simple for subsequent bearing maintenance and bearing replacement. Brief Description of the Drawings:

[0016] Figure 1 It is a schematic structural diagram of the roller / guide roller in the present utility model;

[0017] Figure 2 It is a schematic assembly structure diagram of the simple device of the present utility model.

[0018] Among them, 1 is the roller / guide roller, 2 is the bottom gasket, 3 is the screwed-out gasket, 4 is the bearing, 5 is the screw-out bolt, 6 is the snap ring retaining ring groove, and 7 is the bearing position. Specific Embodiments:

[0019] The following further explains the present utility model in conjunction with the implementation cases and the drawings, but it is not used as a limitation to the protection scope of this application.

[0020] The present utility model is applicable to a simple device for disassembling the bearings embedded at both ends of the roller / guide roller (see Figure 2) It includes a bottom gasket 2, a screwed-out gasket 3, a bearing 4, and a screwed-out bolt 5. The roller / guide roller is a hollow structure, with bearing positions 7 provided at both ends. A circlip retaining groove 6 is provided near the outer side inside the bearing position. The bottom gasket is placed at the bottommost part of the bearing position, and then the screwed-out gasket, the bearing, and the bearing retaining ring are placed in sequence. The bearing retaining ring is embedded in the circlip retaining groove to achieve the fixation of the simple device and the roller / guide roller.

[0021] A threaded hole is provided at the center of the screwed-out gasket.

[0022] The length dimension of the screwed-out bolt is 2 - 3 times greater than the thickness dimension of the bearing 4. Preferably, it is a long bolt. The outer diameter of the long bolt is not greater than the inner diameter of the bearing and can be threadedly engaged with the threaded hole of the screwed-out gasket.

[0023] When removing the bearing, use a special circlip pliers to remove the bearing circlip retaining ring embedded in the circlip retaining groove. Then, a long bolt with a suitable size can be passed through the inner hole of the bearing 4 and directly screwed onto the central threaded hole of the screwed-out gasket. Slowly rotate the bolt. While rotating the bolt, the top end of the bolt will directly press against the bottom gasket. When the bolt is rotated and pressed against the bottom gasket, continue to rotate the thread in the same direction. Since the top end of the bolt has pressed against the bottom gasket 2, the bolt cannot continue to go in. At this time, the long bolt will give a reaction force to the screwed-out gasket 3, and the screwed-out gasket will slowly push out under the received reaction force until the bearing is completely pushed out from the bearing position.

[0024] In this way, the bearing of a roller / guide roller can be easily pushed out by a single screwed-out bolt, realizing the low-cost and more convenient disassembly and assembly of the bearings at both ends of the roller / guide roller.

[0025] In the present utility model, the inner wall structure of the roller / guide roller is mostly in a hollow form, and the inner wall of the roller / guide roller is in communication with the bearing positions at both ends. A bottom gasket is provided at the bearing position, which can completely block the hollow roller / guide roller and provide a force application point for the screwed-out bolt. The outer diameter of the bottom gasket is 5 / 4 of the outer diameter of the bearing, and the thickness is greater than 3 mm. It is installed at the bottommost part of the bearing position.

[0026] If the roller / guide roller is not a hollow structure, the bottom gasket may not be provided either. The depth dimension of the bearing position is the sum of the thickness of the bearing and the thickness dimension of the screwed-out gasket. Additionally, during installation, the bottom gasket may not be installed. After directly installing the screwed-out gasket, the bearing and the circlip retaining ring can be installed.

[0027] The screwed-out gasket is a gasket with a threaded hole in the middle. The outer diameter is 5 / 4 of the outer diameter of the bearing, and the thickness is 3 - 5 mm. The screwed-out gasket and the bottom gasket are stacked and installed on the bearing position.

[0028] The screwed-out gasket and the bottom gasket have the same outer diameter, thickness, and material. Preferably, the thickness is 4 mm.

[0029] The bottom gasket is made of a metal material with certain strength and hardness, and it cannot be too brittle to avoid fracture when stressed.

[0030] The utility model is applied to a roller / guide roller with bearings embedded at both ends. For the existing roller / guide roller, only the depth of the bearing position needs to be deepened so that it can accommodate the bottom gasket, the screw-out gasket and the bearing. When manufacturing the roller / guide roller, the production cost is low and it is convenient for installation.

[0031] In the utility model, the length of the roller / guide roller is generally 2 - 5 m.

[0032] The roller / guide roller can be a carbon fiber rubber roller, and the bearings, the bottom gasket and the screw-out gasket in the simple device of the utility model are arranged on the carbon fiber rubber roller.

[0033] Matters not described in the present utility model are applicable to the prior art.

Claims

1. A simple device applicable to disassembling the bearings at both ends of an inlaid roller / guide roller, characterized in that, The device includes a bottom gasket, a screwed-out gasket, a bearing, and a screwed-out bolt. The bottom gasket is placed at the bottommost part of the bearing position of the roller / guide roller, and then the screwed-out gasket and the bearing are placed in sequence. The center of the screwed-out gasket is provided with a threaded hole, and the bottom gasket has no hole. The length dimension of the screwed-out bolt is 2-3 times greater than the thickness dimension of the bearing. The outer diameter of the long bolt is not greater than the inner diameter of the bearing, and it can be threadedly fitted and connected with the threaded hole of the screwed-out gasket.

2. The simple device according to claim 1, characterized in that, The outer diameter of the bottom gasket is 5 / 4 of the outer diameter dimension of the bearing, and the thickness is greater than 3 mm. The outer diameter of the screwed-out gasket is 5 / 4 of the outer diameter dimension of the bearing, and the thickness is 3-5 mm. The screwed-out gasket and the bottom gasket are stacked and installed on the bearing position.

3. The simple device according to claim 2, wherein, The screwed-out gasket and the bottom gasket have the same outer diameter, thickness, and material, with a thickness of 4 mm, and the bottom gasket is made of metal.

4. A roller / guide roller with bearings embedded at both ends, characterized in that, The depth setting of the bearing position of the roller / guide roller can accommodate the bottom gasket, the screwed-out gasket, and the bearing. The bottom gasket, the screwed-out gasket, and the bearing are fixed in sequence from the inside to the outside in the bearing position, and a bearing retaining ring is provided for fixed limit.

5. The roller / guide roller with bearings inserted at both ends according to claim 4, characterized in that, The length of the roller / guide roller is 2-3 m, and the roller / guide roller is a hollow structure.

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