CN218983024U - Cold rolling bearing ring device for pipe materials - Google Patents
Cold rolling bearing ring device for pipe materials Download PDFInfo
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- CN218983024U CN218983024U CN202320045125.0U CN202320045125U CN218983024U CN 218983024 U CN218983024 U CN 218983024U CN 202320045125 U CN202320045125 U CN 202320045125U CN 218983024 U CN218983024 U CN 218983024U
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Abstract
The utility model discloses a tube cold rolling bearing ring device which comprises a pressurizing unit, a grating ruler, a driving roller bearing seat, a cold rolling roller bearing seat, a driving roller, a power source and two frames, wherein the pressurizing unit is arranged on the grating ruler; the driving roller is transversely arranged on the two frames through a driving roller bearing seat and is connected with a power source; the cold rolling roller is transversely arranged on the two frames through a cold rolling roller bearing seat and is positioned above the driving roller and is parallel to the driving roller; the cold rolling roller bearing seats at two ends of the cold rolling roller are respectively connected with a pressurizing unit, and the pressurizing units push the cold rolling roller bearing seats to move downwards to drive the cold rolling roller to press downwards to finish rolling way cold rolling; the grating ruler is arranged on one of the frames and is used for measuring the height of the cold rolling roller and the clearance value between the cold rolling roller and the driving roller, and the clearance between the cold rolling roller and the driving roller is adjusted through the pressurizing unit so as to adapt to seamless steel pipes with different thicknesses. The utility model can effectively improve the production efficiency and reduce the working strength and the production cost of workers.
Description
Technical Field
The utility model relates to the technical field of bearing production, in particular to a tube cold rolling bearing ring device.
Background
The bearing is an indispensable part of mechanical equipment, and is mainly used for supporting the rotating body and reducing the friction coefficient in the rotating process of the rotating body so as to achieve the aim of ensuring high rotating precision and rotating speed. Bearing is of various kinds and is widely applied to the important fields of automobiles, railway vehicles, various industrial machines, household appliances and the like.
The prior bearing rings are mostly produced by adopting a forging process, but the utilization rate of materials is low, and the production flow is long. At present, in the large-batch processing of small and medium-sized bearing rings, a turning seamless bearing steel tube is used for replacing a forging process, in the medium-batch processing, a flat forging/forging-rolling-shaping process is adopted, and in the small-batch processing, a hammer forging forming-rolling process is adopted.
At present, most of the processes for processing the bearing ring by using the seamless steel tube are used for turning, the thickness of the turning tool and the fixed part of the three-jaw or four-jaw chuck are inevitably wasted by turning the steel tube, the material utilization rate is reduced, the technical requirement of the turning on workers is high, and the labor intensity of the workers is high.
The rolling is a nearly lossless processing mode, the prior heating oblique rolling slitting bearing steel pipe is a main form of rolling bearing steel pipe, but has high equipment requirement, high heating temperature reaching more than 1100 ℃ generally, long heating time, long heating and heat preservation time reaching more than 5 hours generally, huge energy consumption, perforation in advance for oblique rolling slitting, increased working procedure, labor cost increase, production efficiency reduction, less improvement on the performance of finished products due to damage to complete metal streamline formed after rolling by heating, and feasibility due to popularization of the technology for producing seamless steel pipes by cold drawing annealing.
Disclosure of Invention
The utility model aims to overcome the defects and shortcomings of the prior art, and provides a tube cold rolling bearing ring device which is simple and reliable in structure and convenient to operate, and can effectively improve the production efficiency and reduce the working strength and the production cost of workers.
In order to achieve the above purpose, the technical scheme provided by the utility model is as follows: a tube cold rolling bearing ring device comprises a pressurizing unit, a grating ruler, a driving roller bearing seat, a cold rolling roller bearing seat, a driving roller, a power source and two frames; the driving roller is transversely arranged on the two frames through driving roller bearing seats at two ends of the driving roller and is connected with a power source, and the power source provides power to rotate the driving roller; the cold rolling rollers are transversely arranged on the two frames through cold rolling roller bearing blocks at two ends of the cold rolling rollers and are positioned above the driving rollers and are parallel to the driving rollers; the cold rolling roller bearing seats at two ends of the cold rolling roller are respectively connected with a pressurizing unit, and a rack is matched with the pressurizing unit, and the pressurizing unit pushes the cold rolling roller bearing seats to move downwards to drive the cold rolling roller to press downwards to finish rolling way cold rolling; the grating ruler is arranged on one of the frames and used for measuring the height of the cold rolling roller and the clearance value between the cold rolling roller and the driving roller, and the clearance between the cold rolling roller and the driving roller is adjusted through the pressurizing unit so as to adapt to seamless steel pipes with different thicknesses, and the seamless steel pipes are sleeved on the driving roller.
Further, the cold rolling roller is formed by assembling a cold rolling ring and a core roller, the cold rolling ring is sleeved on the core roller and is used for processing a roller path on the surface of a seamless steel pipe, threaded holes are formed in the surface of the core roller at equal intervals, and the threaded holes are fixedly connected with the cold rolling ring through bolts.
Further, the pressurizing unit is a screw stepping motor, a screw of the screw stepping motor is fixed on the corresponding frame, an external driving motor is connected with the cold rolling roller bearing seat, and the external driving motor is pushed to move downwards through rotation of the screw, so that the cold rolling roller is pushed to be pressed downwards.
Further, the pressurizing unit is a hydraulic cylinder, a cylinder body of the hydraulic cylinder is fixed on the corresponding frame, a hydraulic rod of the hydraulic cylinder is connected with the cold rolling roller bearing seat, and the hydraulic rod is driven to be pressed down by a hydraulic pushing piston, so that the cold rolling roller is pushed to be pressed down.
Further, the pressurizing unit is a jack, the base of the jack is fixed on the cold rolling roller bearing seat, the supporting rods of the jack support the corresponding frame, and the supporting rods are lifted by twisting the pressurizing rods of the jack, so that the cold rolling roller is pushed to be pressed down.
Further, the power source comprises a speed reducer and a servo motor with a frequency converter, the driving roller is connected with the speed reducer through a key coupler, and the speed reducer is connected with the servo motor; two screw rods and matched nuts are adopted to fasten the two frames together; the driving roller bearing seat and the cold rolling roller bearing seat are both provided with sliding bearings, the driving roller bearing seat and the cold rolling roller bearing seat are hot-packed, and the sliding bearings, the cold rolling roller and the driving roller are in clearance fit.
Further, the cold rolling bearing ring device for the tube stock further comprises a stepping motor and a guide rail, wherein the power source is positioned on the outer side of one of the frames, the frame is defined to be a first frame, the other frame is slidably mounted on the guide rail, the frame is defined to be a second frame, the stepping motor is connected with the second frame through a screw rod, the screw rod penetrates through the bottom of the second frame and is locked by a nut, and the second frame can move along the guide rail under the driving of the stepping motor, so that the distance between the second frame and the first frame is pulled to change a cold rolling roller.
Further, the cold rolling bearing ring device for the tube stock further comprises a hydraulic cylinder and a guide rail, wherein the power source is positioned on the outer side of one of the frames, the frame is defined to be a first frame, the other frame is slidably mounted on the guide rail, the frame is defined to be a second frame, the hydraulic cylinder is connected with the second frame through a hydraulic rod, and the second frame can move along the guide rail under the driving of the hydraulic cylinder, so that the distance between the second frame and the first frame is pulled to change the cold rolling roller.
Further, the cold rolling bearing ring device for the pipe material further comprises an auxiliary clamping mechanism, the auxiliary clamping mechanism is composed of an upper part, a lower part and a shell, the upper part is composed of four hinge rods matched with a telescopic rod, one end of the telescopic rod is fixed on the shell, the other end of the telescopic rod is a free end, two hinge rods are symmetrically hinged to two sides of the free end, the two hinge rods are respectively hinged to a hinge rod fixed on the shell, the telescopic rod is pulled out to drive the four hinge rods to support a cold rolling bearing seat on one of the frames, the frame is defined to be a second frame, the lower part is composed of four worm wheel and worm mechanisms matched with five gears, the five gears are composed of a driving gear and four driven gears, the driving gear is provided with a handle, the four driven gears are distributed around the driving gear and are meshed with the driving gear, one driven gear is matched with one worm wheel and worm mechanism, the driven gears are coaxially fixed with the worm wheel of the corresponding worm mechanism, and can drive the worm wheel and the corresponding worm mechanism to rotate, so that the worm wheel and the worm wheel can drive the worm bearing seat to move, and the worm wheel can be driven to be moved from the driving roller to the seamless operation frame through tightening nut.
Compared with the prior art, the utility model has the following advantages and beneficial effects:
the utility model adopts the annealed cold-drawn seamless steel pipe as the raw material, has high utilization ratio compared with the forging material, high production efficiency, energy conservation and environmental protection, saves energy compared with the hot-rolled slitting perforated pierced billet, enhances the surface of the raceway due to the cold working hardening effect, improves the surface hardness, does not damage good metal streamline formed by rolling due to heating, and greatly improves the performance of the finished product.
The device designed by the utility model has the advantages of simple and reliable structure, low cost, convenient assembly, simple operation and good rigidity of the whole machine, and can meet the processing of various small and medium-sized bearing rings with different diameters.
The device designed by the utility model can process the whole pipe material by one-time clamping without cutting and then putting the pipe material into a ring rolling machine for processing, thereby reducing the working intensity and the production cost of workers and greatly improving the production efficiency.
The device designed by the utility model has high tolerance precision of the parts obtained after processing, small unevenness of the wall thickness of the ring, meets the precision requirement of common bearings, and can simply and rapidly process the middle and small bearing rings.
Drawings
Fig. 1 is a schematic view of a tube stock cold rolling bearing ring apparatus in example 1.
Fig. 2 is an installation schematic diagram of the pressurizing unit in embodiment 1.
FIG. 3 is a schematic view of the structure of the cold roll in example 1.
Fig. 4a is one of the installation schematic diagrams of the stepping motor, the guide rail and the second frame in embodiment 1.
Fig. 4b is a second schematic view of the installation of the stepping motor, the guide rail and the second frame in embodiment 1.
Fig. 5 is a schematic structural view of the auxiliary clamping mechanism in embodiment 1.
Fig. 6 is a cross-sectional view A-A of fig. 5.
Fig. 7 is a schematic view showing the installation of the pressurizing unit in embodiment 2.
Fig. 8 is a schematic diagram showing the installation of the pressurizing unit in embodiment 3.
Fig. 9a is one of the installation schematic diagrams of the hydraulic cylinder, the guide rail and the second frame in embodiment 4.
Fig. 9b is a second schematic view of the installation of the hydraulic cylinder, rail and second frame in embodiment 4.
Detailed Description
The present utility model will be described in further detail with reference to examples and drawings, but embodiments of the present utility model are not limited thereto.
Example 1
As shown in fig. 1 to 6, the embodiment discloses a cold rolling bearing ring device for pipe materials, which comprises a pressurizing unit 1, a grating ruler 3, an auxiliary clamping mechanism 4, a driving roller bearing seat 5, a stepping motor 6, a cold rolling roller, a guide rail 8, a cold rolling roller bearing seat 10, a driving roller 13, a power source and two frames 14; the driving roller 13 is transversely arranged on the two frames 14 through driving roller bearing seats 5 at two ends of the driving roller 13, is connected with a power source, and is powered by the power source to rotate; the power source is located outside one of the frames 14 (defining that frame as the first frame); the cold rolling rollers are transversely arranged on two frames 14 through cold rolling roller bearing blocks 10 at two ends of the cold rolling rollers and are positioned above a driving roller 13 and are parallel to the driving roller 13; the cold rolling roller bearing blocks 10 at two ends of the cold rolling roller are respectively connected with a pressurizing unit 1, and a rack 14 is matched with the pressurizing unit 1, and the pressurizing unit 1 pushes the cold rolling roller bearing blocks 10 to move downwards to drive the cold rolling roller to press downwards to finish rolling way cold rolling; the grating ruler 3 is arranged on one of the frames 14 (defining the frame as a second frame) and is used for measuring the height of the cold rolling roller and the clearance value between the cold rolling roller and the driving roller 13, and the clearance between the cold rolling roller and the driving roller 13 is adjusted through the pressurizing unit 1 so as to adapt to seamless steel pipes 11 with different thicknesses, and the seamless steel pipes 11 are sleeved on the driving roller 13; two screw matched nuts are adopted to fasten the two frames 14 together, so that stability is improved; the second frame is slidably mounted on the guide rail 8, the stepping motor 6 is connected with the second frame through a screw rod 7, the screw rod 7 penetrates through the bottom of the second frame and is locked by a nut, and the second frame can move along the guide rail 8 under the driving of the stepping motor 6, so that the distance between the second frame and the first frame is pulled to perform cold rolling roller replacement operation; the auxiliary clamping mechanism 4 consists of an upper part, a lower part and a shell 21, wherein the upper part consists of four hinge rods 28 matched with a telescopic rod 22, one end of the telescopic rod 22 is fixed on the shell 21, the other end of the telescopic rod 22 is a free end, two hinge rods 28 are symmetrically hinged on two sides of the free end, the two hinge rods 28 are respectively hinged with one hinge rod 28 fixed on the shell 21, the telescopic rod 22 is pulled out to drive the four hinge rods 28 to support the cold rolling roller bearing seat 10 on one of the frames 14, the frames are defined as second frames, the lower part consists of five gears matched with four worm wheel and worm mechanisms, the five gears consist of a driving gear 23 and four driven gears 24, the driving gear 23 is provided with a handle, the four driven gears 24 are distributed around the driving gear 23 and are meshed with the driving gear, one driven gear 24 is matched with a worm mechanism, the driven gear 24 is coaxially fixed with a corresponding worm mechanism, the worm wheel bearing seat 26 can be driven to rotate, the worm wheel and worm 25 of the corresponding worm wheel and worm mechanism is driven to move, and the worm wheel bearing seat 26 can be fastened on the driving roller and the driving shaft seat 25 to be replaced by the driving roller and the driving shaft nut 5.
Preferably, the cold rolling roller is assembled by a cold rolling ring 9 and a core roller 2, the cold rolling ring 9 is sleeved on the core roller 2 and is used for processing a rollaway nest on the surface of a seamless steel pipe 11, threaded holes are formed in the surface of the core roller 2 at equal intervals, and the cold rolling ring 9 is connected and fixed through m6 bolts 17.
Preferably, the pressurizing unit 1 is a screw stepping motor (see reference numeral 18 shown in fig. 2), the screw of the screw stepping motor 18 is fixed on the corresponding frame 14, the external driving motor is connected with the cold rolling roller bearing seat 10, and the external driving motor is pushed to move downwards by the rotation of the screw, so as to push the cold rolling roller to press downwards.
Preferably, the power source comprises a decelerator 15 and a servo motor 16 provided with a frequency converter 27, the driving roller 13 is connected with the decelerator 15 through a key coupling 12, and the decelerator 15 is connected with the servo motor 16.
Preferably, the driving roller bearing seat 5 and the cold rolling roller bearing seat 10 are both slide bearings, the slide bearings and the driving roller bearing seat 5 and the cold rolling roller bearing seat 10 are hot-packed, and the slide bearings and the cold rolling roller and the driving roller 13 are in clearance fit, so that the axis alignment is ensured, and the disassembly is convenient.
Example 2
Unlike embodiment 1, the pressurizing unit 1 in this embodiment is a hydraulic cylinder (see reference numeral 19 shown in fig. 7), the cylinder body of the hydraulic cylinder 19 is fixed on the corresponding frame 14, and the hydraulic rod is connected with the cold rolling roller bearing seat 10, and the hydraulic rod is driven to be pushed down by the hydraulic pushing piston, so that the cold rolling roller is pushed down.
Example 3
Unlike embodiment 1, the pressurizing unit 1 of this embodiment is a jack (see reference numeral 20 shown in fig. 8), the base of which is fixed on the cold rolling roller bearing housing 10, the support bar of which is pressed against the corresponding frame 14, and the pressurizing rod of which is twisted to raise the support bar, thereby pushing the cold rolling roller to be pressed down.
Example 4
Unlike in embodiment 1, the second frame is pulled to move on the sliding rail 8 by the hydraulic cylinder 29, as shown in fig. 9a and 9b, the hydraulic cylinder 29 is connected with the second frame by the hydraulic rod 30, and the second frame can move along the guide rail 8 under the driving of the hydraulic cylinder 29, so that the distance between the second frame and the first frame is pulled to perform the cold rolling roller replacement operation.
The following is a method for processing the tube stock cold rolling bearing ring device according to any one of embodiments 1 to 4, which specifically includes the following steps:
firstly, removing an oxide layer on the surface of an annealed cold-drawn seamless steel tube 11 by using a lathe, and sleeving the seamless steel tube 11 on a driving roller 13 after finishing; then starting a power source to enable the driving roller 13 to rotate so as to drive the seamless steel tube 11 and the cold rolling roller to rotate, and then starting the pressurizing unit 1 to enable the cold rolling roller to be pressed down, and enabling the cold rolling ring 9 to process a rollaway on the surface of the seamless steel tube 11; then the pressurizing unit 1 resets to drive the cold rolling roller to reset, and the processes are repeated, so that a plurality of bearing rings can be clamped and processed at one time, a semi-finished bearing ring product is obtained by cutting, the semi-finished bearing ring product is deburred and clean, and the qualified bearing ring product can be obtained by carrying out subsequent heat treatment or diameter adjustment according to requirements;
if bearing rings with different diameters are required to be processed, cold rolling rollers with different sizes are required to be replaced, and the roller replacement is driven by the stepping motor 6 or the hydraulic cylinder 29 according to working environments with different loads; when the roller is replaced under the condition of low load, the distance between the second frame and the first frame is pulled by the stepping motor 6, after the cold rolling roller is separated from the cold rolling roller bearing seat 10, the original cold rolling roller is taken out, a new cold rolling roller is replaced, then the second frame is reset by the stepping motor 6, after the new cold rolling roller is installed in the cold rolling roller bearing seat 10, the stepping motor 6 is stopped, the second frame is fixed, and the roller replacing operation is completed; when the roll is replaced under the condition of high load, the distance between the second frame and the first frame is pulled by the hydraulic cylinder 29, after the cold rolling roll is separated from the cold rolling roll bearing seat 10, the original cold rolling roll is taken out, a new cold rolling roll is replaced, then the second frame is reset by the hydraulic cylinder 29, after the new cold rolling roll is installed in the cold rolling roll bearing seat 10, the hydraulic cylinder 29 is stopped, the second frame is fixed, and the roll replacing operation is completed;
if a seamless steel tube 11 is processed, a new seamless steel tube 11 needs to be replaced for processing, firstly, the telescopic rod 22 is pulled out to drive the four hinge rods 28 to form a support to support the cold rolling roller bearing seat 10, then the handle on the driving gear 23 is rotated to drive the driving gear 23 to rotate, the four driven gears 24 are coupled to drive the worm wheel 26 to rotate, thereby driving the worm 25 to move, the driving roller bearing seat 5 is driven by the worm 25 to be pulled away from the second frame, the processed seamless steel tube 11 is taken out, then the seamless steel tube to be processed is loaded into the driving roller 13, and finally, the handle on the driving gear 23 is reversely rotated to load the driving roller bearing seat 5 back into the second frame, so that seamless steel tube replacing operation is completed.
The above examples are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited to the above examples, and any other changes, modifications, substitutions, combinations, and simplifications that do not depart from the spirit and principle of the present utility model should be made in the equivalent manner, and the embodiments are included in the protection scope of the present utility model.
Claims (10)
1. A cold rolling bearing ring device of tube stock, its characterized in that: comprises a pressurizing unit (1), a grating ruler (3), a driving roller bearing seat (5), a cold rolling roller bearing seat (10), a driving roller (13), a power source and two frames (14); the driving roller (13) is transversely arranged on the two frames (14) through driving roller bearing seats (5) at two ends of the driving roller and is connected with a power source, and the power source provides power to rotate the driving roller; the cold rolling rollers are transversely arranged on the two frames (14) through cold rolling roller bearing blocks (10) at two ends of the cold rolling rollers and are positioned above the driving rollers (13) and are parallel to the driving rollers (13); the cold rolling roller bearing seats (10) at two ends of the cold rolling roller are respectively connected with a pressurizing unit (1), and a frame (14) is matched with the pressurizing unit (1), and the pressurizing unit (1) pushes the cold rolling roller bearing seats (10) to move downwards to drive the cold rolling roller to press downwards to finish rollaway cold rolling; the grating ruler (3) is arranged on one of the frames (14) and used for measuring the height of the cold rolling roller and the gap value between the cold rolling roller and the driving roller (13), and the gap between the cold rolling roller and the driving roller (13) is adjusted through the pressurizing unit (1) so as to adapt to seamless steel pipes (11) with different thicknesses, and the seamless steel pipes (11) are sleeved on the driving roller (13).
2. A tube stock cold rolling bearing ring apparatus according to claim 1, characterized in that: the cold rolling roller is formed by assembling a cold rolling ring (9) and a core roller (2), the cold rolling ring (9) is sleeved on the core roller (2) and is used for machining a roller path on the surface of a seamless steel tube (11), threaded holes are formed in the surface of the core roller (2) at equal intervals, and the threaded holes are fixedly connected with the cold rolling ring (9) through bolts (17).
3. A tube stock cold rolling bearing ring apparatus according to claim 1, characterized in that: the pressurizing unit (1) is a screw stepping motor, a screw of the screw stepping motor is fixed on a corresponding frame (14), and an external motor of the screw stepping motor is connected with the cold rolling roller bearing seat (10).
4. A tube stock cold rolling bearing ring apparatus according to claim 1, characterized in that: the pressurizing unit (1) is a hydraulic cylinder, the cylinder body of the hydraulic cylinder is fixed on a corresponding frame (14), and a hydraulic rod of the hydraulic cylinder is connected with the cold rolling roller bearing seat (10).
5. A tube stock cold rolling bearing ring apparatus according to claim 1, characterized in that: the pressurizing unit (1) is a jack, the base of the jack is fixed on the cold rolling roller bearing seat (10), and the supporting rod of the jack props against the corresponding frame (14).
6. A tube stock cold rolling bearing ring apparatus according to claim 1, characterized in that: the power source comprises a speed reducer (15) and a servo motor (16) provided with a frequency converter (27), the driving roller (13) is connected with the speed reducer (15) through a key coupler (12), and the speed reducer (15) is connected with the servo motor (16).
7. A tube stock cold rolling bearing ring apparatus according to claim 1, characterized in that: two screw matched nuts are adopted to fasten and connect the two frames (14) together; the hot rolling device is characterized in that the driving roller bearing seat (5) and the cold rolling roller bearing seat (10) are both provided with sliding bearings, the driving roller bearing seat (5) and the cold rolling roller bearing seat (10) are hot-packed, and the sliding bearings, the cold rolling roller and the driving roller (13) are in clearance fit.
8. A tube stock cold rolling bearing ring apparatus according to claim 1, characterized in that: still include step motor (6) and guide rail (8), the power supply is located one of them frame (14) outside, defines this frame to be first frame, and another frame (14) slidable mounting is on guide rail (8), defines this frame to be the second frame, step motor (6) are connected the second frame through lead screw (7), lead screw (7) pass second frame bottom and lock with the nut, the second frame can be moved along guide rail (8) under step motor (6) drive to pull open the distance between its and the first frame.
9. A tube stock cold rolling bearing ring apparatus according to claim 1, characterized in that: still include pneumatic cylinder (29) and guide rail (8), the power supply is located one of them frame (14) outside, defines this frame to be first frame, and another frame (14) slidable mounting is on guide rail (8), defines this frame to be the second frame, pneumatic cylinder (29) are connected the second frame through the hydraulic stem, the second frame can be moved along guide rail (8) under the drive of pneumatic cylinder (29) to pull open the distance between its and the first frame.
10. A tube stock cold rolling bearing ring apparatus according to claim 1, characterized in that: the auxiliary clamping mechanism (4) is composed of an upper part, a lower part and a shell (21), the upper part is composed of four hinge rods (28) matched with a telescopic rod (22), one end of the telescopic rod (22) is fixed on the shell (21), the other end of the telescopic rod is a free end, two hinge rods (28) are symmetrically hinged to two sides of the free end, the two hinge rods (28) are respectively hinged to a hinge rod (28) fixed on the shell (21), the telescopic rod (22) is pulled out to drive the four hinge rods (28) to support a cold rolling roller bearing seat (10) on one of the frames (14), the frame is defined as a second frame, the lower part is composed of four worm and gear mechanisms matched with five gears, the five gears are composed of a driving gear (23) and four driven gears (24), handles are arranged on the driving gear (23), the four driven gears (24) are distributed around the driving gear (23) and meshed with the driving gear, one worm wheel (24) drives a worm wheel and a worm wheel (24) to drive a corresponding worm (26) to drive a worm (25) to rotate, so that the worm (26) can be fastened on a corresponding worm and a corresponding worm (25) and a worm (25) to be fastened and a corresponding worm (25) to move, thereby driving the driving roller bearing seat (5) to be pulled away from the second frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320045125.0U CN218983024U (en) | 2023-01-09 | 2023-01-09 | Cold rolling bearing ring device for pipe materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320045125.0U CN218983024U (en) | 2023-01-09 | 2023-01-09 | Cold rolling bearing ring device for pipe materials |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218983024U true CN218983024U (en) | 2023-05-09 |
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ID=86195134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320045125.0U Active CN218983024U (en) | 2023-01-09 | 2023-01-09 | Cold rolling bearing ring device for pipe materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218983024U (en) |
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2023
- 2023-01-09 CN CN202320045125.0U patent/CN218983024U/en active Active
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