CN112589478A - Composite rotary supporting device and method for rotary worktable for machine tool - Google Patents
Composite rotary supporting device and method for rotary worktable for machine tool Download PDFInfo
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- CN112589478A CN112589478A CN202011343238.6A CN202011343238A CN112589478A CN 112589478 A CN112589478 A CN 112589478A CN 202011343238 A CN202011343238 A CN 202011343238A CN 112589478 A CN112589478 A CN 112589478A
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- supporting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/44—Movable or adjustable work or tool supports using particular mechanisms
- B23Q1/50—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism
- B23Q1/52—Movable or adjustable work or tool supports using particular mechanisms with rotating pairs only, the rotating pairs being the first two elements of the mechanism a single rotating pair
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Abstract
The invention discloses a composite rotary supporting device and a method of a rotary worktable for a machine tool, which comprises a machine tool frame, a supporting outer ring rotationally connected with the machine tool frame and a supporting inner ring rotationally connected with the supporting outer ring, wherein the supporting outer ring is provided with a plurality of groups of rotating devices which are convenient for lifting up and rotating the supporting inner ring and the supporting outer ring for a certain angle to reduce the serious abrasion of a certain specific area of the supporting outer ring and the supporting inner ring when the supporting inner ring rotates for a certain number of times, the rotating devices are arranged to facilitate lifting up and rotating the supporting inner ring and the supporting outer ring for a certain angle to reduce the serious abrasion of a certain specific area of the supporting outer ring and the supporting inner ring when the supporting inner ring rotates for a certain number of times, the device realizes automation, is simple and fast to operate, improves the working efficiency and prolongs the service life of the supporting, is convenient for people to use.
Description
Technical Field
The invention relates to the technical field of machine tool supporting, in particular to a composite rotary supporting device and a composite rotary supporting method for a rotary worktable for a machine tool.
Background
The slewing bearing is a large bearing capable of bearing comprehensive load and simultaneously bearing larger axial and radial loads and overturning moment. The rotation is carried out around the central axis of the rotary supporting mechanism, and the full rotation can realize the rotation movement within the range of 360 degrees, and the rotation movement can be clockwise or anticlockwise.
And in the use of the existing machine tool, the condition that 360-degree rotary motion is needed is less, the machine tool only needs to work within the angle range smaller than 90 degrees under most specific working conditions, and meanwhile, the lateral force is generated when the machine tool works, so that the bearing far away from one side of the working table is stressed greatly, the abrasion is more serious, and the abrasion of the rotary bearing outer gear ring in the whole rotary bearing mechanism in a specific area is aggravated. Therefore, a composite rotary supporting device and a method for a rotary table for a machine tool are provided.
Disclosure of Invention
The invention aims to provide a composite rotary supporting device and a composite rotary supporting method for a rotary worktable of a machine tool, which are convenient for lifting and rotating a supporting inner ring and a supporting outer ring for a certain angle when the supporting inner ring rotates for a certain number of times so as to reduce serious abrasion of a certain specific area of the supporting outer ring and the supporting inner ring, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a composite rotary supporting device and method for a rotary worktable for a machine tool comprises a machine tool frame, a supporting outer ring rotationally connected with the machine tool frame and a supporting inner ring rotationally connected with the supporting outer ring, wherein a plurality of groups of rotating devices are arranged on the supporting outer ring, and are used for lifting the supporting inner ring and the supporting outer ring and rotating the supporting inner ring and the supporting outer ring by a certain angle when the supporting inner ring rotates for a certain number of times so as to reduce serious abrasion of a certain specific area of the supporting outer ring and the supporting inner ring.
Preferably, the rotating device comprises a detection device for detecting the number of times of rotation of the supporting outer ring and the supporting inner ring, the supporting outer ring is provided with a fixing device for fixing and fixing the supporting outer ring and the machine tool frame, the machine tool frame is provided with a lifting device for lifting the supporting outer ring and the supporting inner ring to remove the connection between the supporting outer ring and the supporting inner ring and the machine tool frame, the machine tool frame is provided with a rotating device for rotating the lifted supporting outer ring and the lifted supporting inner ring by a certain angle, the rotating devices are linked with each other, and the whole function can be realized by only one driving source.
Preferably, the detection device comprises a roller in rolling connection with the inner bearing ring, and the roller is connected with a detection sensor fixedly mounted on the machine frame and used for detecting the rotation frequency of the roller, so as to detect the rotation frequency of the inner bearing ring.
Preferably, the fixing device comprises a fixing ring which is fixedly arranged at the bottom of the supporting outer ring and is rotationally connected with the machine tool frame, a plurality of groups of insertion grooves are arranged on the outer wall of the fixing ring, an insertion block is inserted in any one of the insertion grooves, a sliding groove is arranged on the side surface of the insertion block, a device box is fixedly arranged on the machine tool frame, a device groove is arranged in the device box, a motor which is electrically connected with the detection sensor is fixedly arranged in the device box, the output end of the motor is fixedly connected with a first bevel gear, the first bevel gear is meshed with a second bevel gear which is rotationally connected with the device groove, the second bevel gear is coaxially and fixedly connected with a first gear, the first gear is meshed with a first rack and a second rack which are slidably connected with the device groove, one end of the first rack is fixedly connected with an elastic part which is fixedly connected with the device groove, and the other, the middle part of the first rack is provided with a chute which is in sliding connection with one end of the second rack, the output end of the motor is connected with the lifting device and the rotating device, and a stable state can be kept when the motor is fixed or released.
Preferably, the lifting device comprises a second gear fixedly connected to the output end of the motor, a third rack meshed with the second gear is installed on the side surface of the insert block, an annular limiting groove convenient for limiting the top of the insert block is formed in the bottom surface of the supporting outer ring, the output end of the motor is connected with the rotating device, the annular limiting groove can limit the insert block, and the insert block is prevented from deflecting in the process of jacking and supporting outer ring rotation.
Preferably, the rotating device comprises a fourth gear which is fixedly connected with the second bevel gear in a coaxial mode, a gear ring which is meshed with the fourth gear is fixedly connected to the lower portion of the side face of the supporting outer ring, the gear ring can rotate when being lifted up, meshing is broken when the gear ring is put down, and the structure is ingenious.
Preferably, the inserting groove is triangular, so that inserting is convenient and the inserting is more stable.
Preferably, the elastic member is a spring, which is convenient for production.
A use method of a composite rotary supporting device of a rotary table for a machine tool comprises the following steps: step one, detection: the rolling connection of the roller on the detection sensor and the supporting inner ring is used for detecting the rotating times of the supporting inner ring, and when the certain times are reached, the detection sensor can transmit signals to the fixing device, the lifting device and the rotating device for the next operation; step two, operation: after the detection of the first step, the detection sensor transmits a signal to the motor, the motor starts the fixing device to release the fixation of the supporting outer ring, the linkage lifting device lifts the supporting outer ring and the supporting inner ring at the same time, the linkage rotating device rotates the supporting outer ring and the supporting inner ring by a certain angle after the lifting, then the motor stops rotating, the supporting outer ring and the supporting inner ring move downwards, and the motor rotates reversely, so that the fixing device fixes the supporting outer ring; step three, circulation: and after the operation of the second step is finished, the fixing device fixes the outer ring of the support, at the moment, the roller on the detection sensor continues to detect the rotation times of the inner ring of the support, and the first step and the second step are circularly repeated.
Compared with the prior art, the invention has the beneficial effects that:
the invention solves the problem that the bearing far away from one side of the worktable is stressed and abraded more seriously due to the long-term frequent rotation of the bearing inner ring and the lateral force generated when the machine tool works in the use of the existing composite rotary supporting device of the rotary worktable for the machine tool.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the cartridge of the present invention;
FIG. 3 is an exploded view of the rotary device of the present invention;
FIG. 4 is an enlarged view of area A of FIG. 1;
FIG. 5 is an enlarged view of area B of FIG. 2;
FIG. 6 is a cross-sectional view of a rotary device of the present invention;
fig. 7 is an enlarged view of the region C in fig. 6.
In the figure: 1-machine tool frame; 2-supporting the outer ring; 3-supporting the inner ring; 4-a rotating device; 5-a detection device; 6-a fixing device; 7-lifting means; 8-a rotating device; 9-a roller; 10-a detection sensor; 11-a fixed ring; 12-a plug groove; 13-inserting blocks; 14-a chute; 15-a device cartridge; 16-a device tank; 17-a motor; 18-a first bevel gear; 19-a second bevel gear; 20-a first gear; 21-a first rack; 22-a second rack; 23-an elastic member; 24-a chute; 25-a second gear; 26-a third rack; 27-an annular limiting groove; 28-fourth gear; 29-gear ring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides a technical solution: a composite rotary supporting device and method for a rotary worktable for a machine tool comprises a machine tool frame 1, a supporting outer ring 2 rotationally connected with the machine tool frame 1 and a supporting inner ring 3 rotationally connected with the supporting outer ring 2, wherein a plurality of groups of rotating devices 4 are arranged on the supporting outer ring 2, and are used for lifting up the supporting inner ring 3 and the supporting outer ring 2 and rotating the supporting outer ring 2 by a certain angle to reduce serious abrasion of a certain specific area of the supporting outer ring 2 and the supporting inner ring 3 when the supporting inner ring 3 rotates for a certain number of times, so that the supporting inner ring 3 and the supporting outer ring 2 are lifted up and rotate by a certain angle to reduce serious abrasion of a certain specific area of the supporting outer ring 2 and the supporting inner ring 3 when the supporting inner ring 3 rotates for a certain number of times.
The rotating device 4 comprises a detecting device 5 which is convenient for detecting the number of times of rotation of the supporting outer ring 2 and the supporting inner ring 3, a fixing device 6 which is convenient for fixing and unfixing the supporting outer ring 2 and the machine frame 1 is arranged on the supporting outer ring 2, a lifting device 7 which is convenient for lifting the supporting outer ring 2 and the supporting inner ring 3 to unfix the supporting outer ring 2 and the supporting inner ring 3 from the machine frame 1 is arranged on the machine frame 1, a rotating device 8 which is convenient for rotating the lifted supporting outer ring 2 and the lifted supporting inner ring 3 by a certain angle is arranged on the machine frame 1, the fixing device 6 tightly fixes the supporting outer ring 2 on the machine frame 1 in a normal state, the detecting device 5 can detect the number of times of rotation of the supporting outer ring 2 and the supporting inner ring 3, the fixing device 6 can be started to unfix when the number of times reaches a certain number, and the lifting device 7 operates to lift the supporting outer ring 2 and the, after the supporting outer ring 2 is lifted up, the rotating device 8 operates to enable the supporting outer ring 2 to rotate a certain angle, at the moment, the supporting outer ring 2 and the supporting inner ring 3 fall down, the fixing device 6 resets to fix the supporting outer ring 2 and the machine tool frame 1, all devices are linked with each other, the process can be realized only by one driving source, the structure is ingenious, and the use is convenient.
The detection device 5 comprises a roller 9 in rolling connection with the supporting inner ring 3, the roller 9 is connected with a detection sensor 10 fixedly mounted on the machine frame 1 and used for detecting the rotation times of the roller 9, the roller 9 is in rolling connection with the supporting inner ring 3 and can drive the roller 9 to rotate when the supporting inner ring 3 rotates, and the detection sensor 10 can detect the rotation times of the roller 9, namely the rotation times of the supporting inner ring 3.
The fixing device 6 comprises a fixing ring 11 which is fixedly arranged at the bottom of a supporting outer ring 2 and is rotationally connected with a machine tool frame 1, the outer wall of the fixing ring 11 is provided with a plurality of groups of insertion grooves 12, an insertion block 13 is inserted in any one of the insertion grooves 12, the side surface of the insertion block 13 is provided with a sliding groove 14, a device box 15 is fixedly arranged on the machine tool frame 1, a device groove 16 is arranged in the device box 15, a motor 17 which is electrically connected with a detection sensor 10 is fixedly arranged in the device box 15, the output end of the motor 17 is fixedly connected with a first bevel gear 18, the first bevel gear 18 is meshed with a second bevel gear 19 which is rotationally connected with the device groove 16, the second bevel gear 19 is coaxially and fixedly connected with a first gear 20, the first gear 20 is meshed with a first rack 21 and a second rack 22 which are slidably connected with the device groove 16, one end of the first rack 21 is fixedly connected with an elastic piece 23 which is fixedly connected with, the other end of the first rack 21 is connected with the chute 14 in a sliding manner, the middle part of the first rack 21 is provided with a chute 24 connected with one end of the second rack 22 in a sliding manner, the output end of the motor 17 is connected with the lifting device 7 and the rotating device 8, in a normal state, the elastic piece 23 pushes the first rack 21 to enable the plugging block to be plugged with the plugging groove 12, when the detection device 5 starts the motor 17 to operate, the motor 17 drives the first bevel gear 18 to rotate, the first bevel gear 18 drives the second bevel gear 19 and the first gear 20 to rotate, the first gear 20 drives the first rack 21 and the second rack 22 to slide in the device groove 16, the elastic piece 23 compresses, the second rack 22 pulls the plugging block 13 out of the plugging groove 12 to release the fixation, when one end of the second rack 22 is plugged into the chute 24, the first rack 21 is not meshed with the first gear 20, and the second rack 22 pushes the first rack 21 to move, the first rack 21 continuously pulls the insert 13 until the insert 13 is connected with the lifting device 7, namely the insert 13 and the supporting outer ring 2 are jacked up through the lifting device 7, the supporting outer ring 2 can be rotated by the rotating device 8 after jacking, after the rotation is completed, the supporting outer ring 2 and the insert 13 fall down, the motor 17 rotates reversely, the first rack 21 moves under the action of the elastic piece 23 and is meshed with the first gear 20, the first gear 20 drives the first rack 21 to push the insert 13 to move, and the insert 13 is inserted into the insertion groove 12 to be fixed.
The lifting device 7 comprises a second gear 25 fixedly connected to the output end of the motor 17, a third rack 26 meshed with the second gear 25 is installed on the side surface of the insert block 13, an annular limiting groove 27 convenient for limiting the top of the insert block 13 is formed in the bottom surface of the supporting outer ring 2, the output end of the motor 17 is connected with the rotating device 8, the motor 17 drives the second gear 25 to rotate, when the insert block 13 moves outwards and slides into the annular limiting groove 27, the third rack 26 is meshed with the second gear 25, the insert block 13 is lifted upwards by the second gear 25, the support outer ring 2 is jacked up by the insert block 13, the rotating device 4 is provided with a plurality of groups, so that the fixing of the device and the lifting of the support outer ring 2 are facilitated, when the rotating device 8 rotates the support outer ring 2 for a certain angle after jacking, the motor 17 stops running, the support outer ring 2 and the insert block 13 fall (the distance is small), and a buffer device can be arranged at the bottom, the machine is prevented from being damaged in the falling process, because the fixing devices 6 are mutually meshed, the second gear 25, the first bevel gear 18, the second bevel gear 19 and the first gear 20 can be reversely rotated when the plug block 13 falls, so that the first rack 21 and the second rack 22 can be reset, and at the moment, the motor 17 is reversely rotated, so that the first rack 21 can push the plug block 13 to move and be inserted into the plug groove 12 for fixing.
The rotating device 8 comprises a fourth gear 28 coaxially and fixedly connected with a second bevel gear 19, a gear ring 29 meshed with the fourth gear 28 is fixedly connected below the side surface of the outer bearing ring 2, the second bevel gear 19 rotates to drive the fourth gear 28 to rotate, at the moment, the fourth gear 28 idles, when the second gear 25 lifts the insert block 13 and the outer bearing ring 2, the gear ring 29 is meshed with the fourth gear 28, so that the outer bearing ring 2 can rotate at a certain angle, when the set angle is reached, the motor 17 stops rotating, the outer bearing ring 2 and the insert block 13 can fall down, and the gear ring 29 is disconnected from being meshed with the fourth gear 28.
The inserting groove 12 is triangular, so that the inserting is more convenient and the connection is tighter.
The elastic part 23 is a spring, is common and is convenient to produce.
A use method of a composite rotary supporting device of a rotary table for a machine tool comprises the following steps: step one, detection: the rolling connection of the roller 9 on the detection sensor 10 and the supporting inner ring 3 is detected, so that the number of times of rotation of the supporting inner ring 3 is detected, and when the number of times reaches a certain number, the detection sensor 10 transmits signals to the fixing device 6, the lifting device 7 and the rotating device 8 to perform the following operation; step two, operation: after the detection of the first step, the detection sensor 10 transmits a signal to the motor 17, the motor 17 starts the fixing device 6 to release the fixing of the supporting outer ring 2, the linkage lifting device 7 lifts the supporting outer ring 2 and the supporting inner ring 3, the linkage rotating device 8 rotates the supporting outer ring 2 and the supporting inner ring 3 by a certain angle after the lifting, then the motor 17 stops rotating, the supporting outer ring 2 and the supporting inner ring 3 move downwards, and the motor 17 rotates reversely, so that the fixing device 6 fixes the supporting outer ring 2; step three, circulation: after the operation of the second step is finished, the fixing device 6 fixes the outer bearing ring 2, at the moment, the roller 9 on the detection sensor 10 continuously detects the rotation times of the inner bearing ring 3, and the first step and the second step are circularly repeated.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. The utility model provides a rotary worktable combined type rotary supporting device for lathe, includes bedstead (1), rotates supporting outer lane (2) of being connected and supports inner circle (3) of being connected with supporting outer lane (2) with bedstead (1), its characterized in that: and a plurality of groups of rotating devices (4) which are convenient for lifting the supporting inner ring (3) and the supporting outer ring (2) and rotating for a certain angle when the supporting inner ring (3) rotates for a certain number of times so as to reduce serious abrasion of a certain specific area of the supporting outer ring (2) and the supporting inner ring (3) are arranged on the supporting outer ring (2).
2. The composite rotary supporting device of a rotary table for a machine tool according to claim 1, wherein: the rotating device (4) comprises a detecting device (5) which is convenient for detecting the number of times of rotation of the supporting outer ring (2) and the supporting inner ring (3), a fixing device (6) which is convenient for fixing and unfixing the supporting outer ring (2) and the machine frame (1) is arranged on the supporting outer ring (2), a lifting device (7) which is convenient for lifting the supporting outer ring (2) and the supporting inner ring (3) to remove connection between the supporting outer ring (2) and the supporting inner ring (3) and the machine frame (1) is arranged on the machine frame (1), and a rotating device (8) which is convenient for rotating the lifted supporting outer ring (2) and the lifted supporting inner ring (3) by a certain angle is arranged on the machine frame (1).
3. The composite rotary supporting device of a rotary table for a machine tool according to claim 2, wherein: the detection device (5) comprises a roller (9) in rolling connection with the supporting inner ring (3), and the roller (9) is connected with a detection sensor (10) which is fixedly arranged on the machine frame (1) and is convenient for detecting the rotation times of the roller (9).
4. The composite rotary supporting device of a rotary table for a machine tool according to claim 3, wherein: the fixing device (6) comprises a fixing ring (11) which is fixedly arranged at the bottom of a supporting outer ring (2) and is rotationally connected with a machine bed frame (1), the outer wall of the fixing ring (11) is provided with a plurality of groups of insertion grooves (12), an insertion block (13) is inserted in any one of the insertion grooves (12), the side surface of the insertion block (13) is provided with a sliding groove (14), the machine bed frame (1) is fixedly provided with a device box (15), a device groove (16) is arranged in the device box (15), a motor (17) which is electrically connected with a detection sensor (10) is fixedly arranged in the device box (15), the output end of the motor (17) is fixedly connected with a first bevel gear (18), the first bevel gear (18) is meshed with a second bevel gear (19) which is rotationally connected with the device groove (16), and the second bevel gear (19) is coaxially and fixedly connected with a first gear (20), the device comprises a first gear (20), a second gear (22) and a first rack (21), wherein the first rack (21) and the second rack (22) are in sliding connection with a device groove (16) in a meshed mode, one end of the first rack (21) is fixedly connected with an elastic piece (23) fixedly connected with the device groove (16), the other end of the first rack (21) is in sliding connection with a sliding groove (14), a chute (24) in sliding connection with one end of the second rack (22) is formed in the middle of the first rack (21), and the output end of a motor (17) is connected with a lifting device (7) and a rotating device (8).
5. The composite rotary supporting device of a rotary table for a machine tool according to claim 4, wherein: the lifting device (7) comprises a second gear (25) fixedly connected to the output end of the motor (17), a third rack (26) meshed with the second gear (25) is installed on the side face of the insert block (13), an annular limiting groove (27) convenient for limiting the top of the insert block (13) is formed in the bottom face of the supporting outer ring (2), and the output end of the motor (17) is connected with the rotating device (8).
6. The composite rotary supporting device of a rotary table for a machine tool according to claim 5, wherein: the rotating device (8) comprises a fourth gear (28) coaxially and fixedly connected with the second bevel gear (19), and a gear ring (29) meshed with the fourth gear (28) is fixedly connected below the side surface of the supporting outer ring (2).
7. The composite rotary supporting device of a rotary table for a machine tool according to claim 4, wherein: the insertion groove (12) is triangular.
8. The composite rotary supporting device of a rotary table for a machine tool according to claim 4, wherein: the elastic piece (23) is a spring.
9. A method for using the composite rotary supporting device of the rotary table for the machine tool according to claims 1 to 8, wherein: the method comprises the following steps: step one, detection: the rolling connection of the roller (9) on the detection sensor (10) and the supporting inner ring (3) is detected, so that the rotating times of the supporting inner ring (3) are detected, and when the certain times are reached, the detection sensor (10) can transmit signals to the fixing device (6), the lifting device (7) and the rotating device (8) for the next operation; step two, operation: after the detection of the first step, a detection sensor (10) transmits a signal to a motor (17), the motor (17) starts a fixing device (6) to release the fixing of the supporting outer ring (2), meanwhile, a linkage lifting device (7) lifts the supporting outer ring (2) and the supporting inner ring (3), after the lifting, a linkage rotating device (8) rotates the supporting outer ring (2) and the supporting inner ring (3) by a certain angle, then the motor (17) stops rotating, the supporting outer ring (2) and the supporting inner ring (3) move downwards, and the motor (17) rotates reversely to enable the fixing device (6) to fix the supporting outer ring (2); step three, circulation: after the operation of the second step is finished, the fixing device (6) fixes the outer bearing ring (2), at the moment, the roller (9) on the detection sensor (10) continues to detect the rotation times of the inner bearing ring (3), and the first step and the second step are circularly repeated.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011343238.6A CN112589478B (en) | 2020-11-26 | 2020-11-26 | Combined type rotary supporting device and method for rotary worktable for machine tool |
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| CN202011343238.6A CN112589478B (en) | 2020-11-26 | 2020-11-26 | Combined type rotary supporting device and method for rotary worktable for machine tool |
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| CN112589478A true CN112589478A (en) | 2021-04-02 |
| CN112589478B CN112589478B (en) | 2022-07-26 |
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| CN111422765A (en) * | 2020-05-11 | 2020-07-17 | 马鞍山统力回转支承有限公司 | Slewing bearing device for hoisting equipment |
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| CN208409176U (en) * | 2018-07-19 | 2019-01-22 | 巨轮中德机器人智能制造有限公司 | High-precision rotary working-table with automatic gap eliminating device |
| CN210613863U (en) * | 2019-09-12 | 2020-05-26 | 内蒙古万晨化工有限公司 | Novel crushing roller of crusher |
| CN111422765A (en) * | 2020-05-11 | 2020-07-17 | 马鞍山统力回转支承有限公司 | Slewing bearing device for hoisting equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111422765A (en) * | 2020-05-11 | 2020-07-17 | 马鞍山统力回转支承有限公司 | Slewing bearing device for hoisting equipment |
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| CN112589478B (en) | 2022-07-26 |
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