CN210034159U - Bolt type cylindrical roller for guide wheel of top drive pulley - Google Patents
Bolt type cylindrical roller for guide wheel of top drive pulley Download PDFInfo
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- CN210034159U CN210034159U CN201920454288.8U CN201920454288U CN210034159U CN 210034159 U CN210034159 U CN 210034159U CN 201920454288 U CN201920454288 U CN 201920454288U CN 210034159 U CN210034159 U CN 210034159U
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- bolt
- bolt shaft
- oil hole
- cylindrical roller
- outer ring
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Abstract
A bolt type cylindrical roller for a guide wheel of a top drive pulley comprises a bolt shaft, an outer ring, a roller, a plastic retainer and a retainer ring, wherein the bolt shaft is divided into a head part, a neck part and a thread part; the inner end surface of the flange at the head part of the bolt shaft and the inner end surface of the retainer ring are provided with abdicating steps. The utility model discloses can bear big radial load, have stand wear and tear and long service life's advantage.
Description
Technical Field
The utility model relates to a bolt type cylindrical roller gyro wheel.
Background
The top drive drilling device, called top drive device for short, is a novel drilling device, is developed in the beginning of the 20 th century and the 80 th era, and is developed into the most advanced integral top drive drilling device. The top drive pulley guide wheel adopts a bolt type cylindrical roller, a plurality of rollers are required to be used together during working, the top drive device is guided to move up and down along the guide rail, the rotating speed is low, and the top drive pulley guide wheel belongs to the working condition of low-speed heavy load. Especially, the front two rollers have the largest load bearing and have the fastest failure. The roller is usually of a full-complement cylindrical roller structure, in practice, the bearing capacity of the roller is large, so that the surface of the roller is ground out of a platform, and the roller inside is seriously abraded and even broken. Because the top drive roller often receives great impact in work, the dust cover in interference fit with the roller flange can fall off, the oil derrick is high, and once the dust cover falls off, people are easily injured when the dust cover falls off from a high place, and safety accidents occur.
Disclosure of Invention
The utility model discloses drive bearing that exists among the use practical application inadequately, easily wearing and tearing, life are not long as the top to bolt type roller gyro wheel, provide a top of taking the holder that can bear big radial load, stand wear and tear and long service life and drive coaster type cylindrical roller gyro wheel for leading wheel.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the bolt comprises a bolt shaft, an outer ring, rollers, a plastic retainer and a retainer ring, wherein the bolt shaft is divided into a head part, a neck part and a thread part, the head part of the bolt shaft is provided with a head part flange and two inner ring channels, the inner wall of the outer ring is provided with two outer ring channels, the rollers are respectively arranged between the two inner and outer ring channels through the two plastic retainers, the retainer ring is in interference fit with the neck part of the bolt shaft, the head part flange and the retainer ring of the bolt shaft respectively form clearance seal with the flanges at two sides of the outer ring, the thread part of the bolt shaft is provided with two round nuts and a stop washer for the round nuts, an oil hole is arranged in the bolt shaft, the oil hole comprises an axial oil hole, a head part radial oil hole and; and the inner end surface of the flange at the head part of the bolt shaft and the inner end surface of the retainer ring are provided with abdicating steps for abdicating the plastic retainer.
One end of the bolt shaft is provided with an inner hexagonal hole for auxiliary installation, and the end part of the axial oil hole at the other end of the bolt shaft is provided with an oil cup.
The end part of the oil cup is positioned in a counter bore at the end part of the threaded part of the bolt shaft.
The outer ring is made of high-quality alloy steel 20Cr2Ni4A, and the outer surface of the outer ring is an arc surface.
The roller is a cylindrical roller.
The diameter of the cylindrical roller is 12-15 mm.
The head radial oil hole is arranged between the two inner ring channels, and the orifice of the head radial oil hole corresponds to the roller.
The utility model comprises an outer ring, a bolt shaft, a roller, a retainer ring, an oil cup, a round nut and a stop washer for the round nut, wherein the outer ring is made of high-quality alloy steel 20Cr2Ni4A, the mechanical property of the outer ring is superior to that of an outer ring material commonly used by a roller, and the outer ring is provided with a bus with R being more than or equal to 500, so that the edge stress generated by the inclination of the roller relative to a support track can be avoided; the rollers are arranged in double rows, and the diameters of the rollers are increased so as to improve the bearing capacity; two plastic retainers are arranged in the roller cage to uniformly separate the rollers and avoid mutual abrasion; the inner end surface of the flange at the head part of the bolt shaft and the inner end surface of the retainer ring are provided with abdicating steps to provide an accommodating space of the retainer; the center of the large end face of the head of the bolt shaft is provided with an inner hexagonal hole for auxiliary installation, the center of the end face of the threaded part is provided with a counter bore for installing a through type oil cup, and the end face of the bolt shaft is not exposed out of the oil cup. The flange at the head of the bolt shaft and the retainer ring respectively form clearance seal with the flanges at the two sides of the outer ring.
Two round nuts are used and are locked by a round nut stop washer. The utility model discloses a radial load capacity has improved 60% than former full complement cylindrical roller gyro wheel, and life reaches 3 times of former gyro wheel.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The oil cup comprises a base, an outer ring 1, an outer ring 2, a bolt shaft 3, a roller 4, a retainer 5, a retainer ring 6, a stop washer for a round nut 7, a round nut 8 and an oil cup.
Detailed Description
The invention is described in further detail below with reference to the drawings and the detailed description.
In figure 1, the utility model discloses a bolt shaft 2, outer lane 1, roller 3, plastics holder 4 and retaining ring 5, 1 materials in outer lane are high-quality alloy steel, and its mechanical properties all is superior to gyro wheel common materials, and outer lane 1 has R and is greater than or equal to 500 circular arc generating lines, can avoid because the marginal stress that the gyro wheel produced for supporting the track slope. One end of the bolt shaft 2 is provided with an inner hexagonal hole for auxiliary installation, one end of the bolt shaft is provided with a straight-through oil cup 8, and the rollers 3 are in double rows and are uniformly separated by two retainers 4. The rollers 3 arranged in two rows have larger diameters than the full-filling design, and the bearing capacity is improved by 60 percent. The retainer 4 is 2 plastic retainers, and the rollers are uniformly spaced, so that abrasion caused by mutual contact of the rollers is avoided. The inner end face of the flange at the head of the bolt shaft 2 and the inner end face of the retainer ring 5 are provided with abdicating steps to provide a space for arranging the plastic retainer 4, and the abdicating steps are in interference fit with the neck of the bolt shaft 2 to ensure the integrity of the roller when the roller is not on line.
The bolt shaft 2 is structurally divided into a head part, a neck part and a thread part, and an oil hole is formed in the bolt shaft. The head part is provided with a flange and a roller path, the flange is provided with a step to provide a space for arranging the retainer, the width of the roller path is larger than the length of the roller, a radial oil hole is arranged in the middle of the roller path, and the radial oil hole is vertically intersected with the axial oil hole. The neck is provided with a retainer ring 5 which is in interference fit with the retainer ring, and the neck is provided with a radial oil hole. The flange at the head of the bolt shaft 2 and the retainer ring 5 respectively form clearance seal with the flanges at the two sides of the outer ring 1.
The thread part is provided with a stop washer 6 and two round nuts 7 for round nuts so as to prevent the nuts from loosening, a counter bore is formed in the center of the end face, a threaded hole is formed in the counter bore and used for mounting a through type oil cup, the height of the oil cup 5 is lower than that of the thread end face, and the threaded hole is connected with an axial oil hole. Lubricating grease is added from the oil cup 8, and the lubricating grease can enter parts needing to be lubricated inside the roller through the axial oil hole and the radial oil hole.
Claims (7)
1. The utility model provides a coaster is top driven bolt type cylindrical roller gyro wheel for leading wheel which characterized in that: comprises a bolt shaft (2), an outer ring (1), rollers (3), plastic retainers (4) and retainer rings (5), wherein the bolt shaft (2) is divided into a head part, a neck part and a thread part, the head part of the bolt shaft (2) is provided with a head retaining edge and two inner ring channels, the inner wall of the outer ring (1) is provided with two outer ring channels, the rollers (3) are respectively arranged in the two outer ring channels through the two plastic retainers (4), between outer ring channels, a retainer ring (5) is in interference fit with the neck of a bolt shaft (2), a head retaining edge and the retainer ring (5) of the bolt shaft (2) respectively form clearance seal with retaining edges on two sides of an outer ring (1), two round nuts (6) and a stop washer (7) for the round nuts are arranged on a threaded portion of the bolt shaft (2), an oil hole is formed in the bolt shaft (2), the oil hole comprises an axial oil hole, a head radial oil hole and a shaft neck radial oil hole, and the head radial oil hole and the shaft neck radial oil hole are perpendicularly intersected with the axial oil hole; the inner end surface of the head flange of the bolt shaft (2) and the inner end surface of the retainer ring (5) are provided with abdicating steps for abdicating the plastic retainer (4).
2. The bolt-type cylindrical roller for a guide wheel of a top drive tackle according to claim 1, wherein: an inner hexagonal hole for auxiliary installation is formed in one end of the bolt shaft (2), and an oil cup (8) is arranged at the end part of the axial oil hole at the other end of the bolt shaft (2).
3. The bolt-type cylindrical roller for a guide wheel of a top drive tackle as claimed in claim 2, wherein: the end part of the oil cup (8) is positioned in a counter bore at the end part of the thread part of the bolt shaft (2).
4. The bolt-type cylindrical roller for a guide wheel of a top drive tackle according to claim 1, wherein: the outer ring is made of alloy steel 20Cr2Ni4A, and the outer surface of the outer ring is a circular arc surface.
5. The bolt-type cylindrical roller for a guide wheel of a top drive tackle according to claim 1, wherein: the roller (3) is a cylindrical roller.
6. The bolt-type cylindrical roller for a top drive sheave guide wheel of claim 5, wherein: the diameter of the cylindrical roller is 12-15 mm.
7. The bolt-type cylindrical roller for a guide wheel of a top drive tackle according to claim 1, wherein: the head radial oil hole is arranged between the two inner ring channels, and the orifice of the head radial oil hole corresponds to the roller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454288.8U CN210034159U (en) | 2019-04-04 | 2019-04-04 | Bolt type cylindrical roller for guide wheel of top drive pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920454288.8U CN210034159U (en) | 2019-04-04 | 2019-04-04 | Bolt type cylindrical roller for guide wheel of top drive pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210034159U true CN210034159U (en) | 2020-02-07 |
Family
ID=69358069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920454288.8U Active CN210034159U (en) | 2019-04-04 | 2019-04-04 | Bolt type cylindrical roller for guide wheel of top drive pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210034159U (en) |
-
2019
- 2019-04-04 CN CN201920454288.8U patent/CN210034159U/en active Active
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