Rotary table with balance brake

Abstract

The invention relates to the technical field of rotary tables, in particular to a rotary table with a balance brake, which comprises a base and a rotary table, a rotary shaft seat is arranged on the rotary table, an encoder is coaxially sleeved on the rotary shaft seat, the rotary shaft seat is in running fit with the rotary table, and a driving part for driving the rotary shaft seat to rotate is arranged on the base. A brake assembly is arranged between the base and the rotating table and comprises a brake ring which is arranged on the base and coaxially arranged on the rotating shaft seat in a sleeving mode, and a brake piece which drives the circumferential inner side wall of the brake ring to abut against the circumferential outer side wall of the rotating shaft seat is arranged on the base. The rotary table has the effect of improving the rotary stability and the rotary precision of the rotary table.

Description

Technical Field

[0001] The present application relates to the technical field of turntables, and in particular to a turntable with a balancing brake. Background Art

[0002] A turntable is a device that can rotate around a single axis. This device plays an important role in the field of automation, especially in applications that require precise control and positioning. The design and implementation of an automated turntable involves knowledge from multiple disciplines, including but not limited to automation science, mechanical engineering, and electronic engineering, to ensure that it can meet the needs of a variety of complex applications. With the development of multifunctional composite CNC machine tools, the use of automated turntables to expand machine tool functions has become an important part of machine tool development.

[0003] A Chinese patent with announcement number CN111922997A discloses a turntable, wherein a through hole is provided at the center of the rotating table surface of the turntable as a seat hole, and a base is connected to the rotating table surface through a main shaft and a bearing group arranged in the seat hole, and a first outer cylindrical step is also provided between the end surfaces at both ends of the rotating table surface, and three or more deceleration grooves arranged in a centrally symmetrical manner are provided on the large end ring surface of the first outer cylindrical step, and a deceleration device is assembled and connected to the deceleration groove. The deceleration device includes a hydraulic cylinder, a brake piston, a piston shaft and a brake seat connected in sequence, and the end face of the brake seat and the deceleration groove are separated or contacted due to the extension and contraction of the brake piston, and the end face of the brake seat is perpendicular to the center line of the brake piston, and the center line of the brake piston is parallel to the axis of the seat hole.

[0004] The above technology utilizes the cooperation of the hydraulic cylinder and the brake seat to apply pressure to the rotating table, and decelerates the rotating table through friction to achieve the effect of braking the rotating table. However, the entire rotating table has a large effective area, and the hydraulic cylinder only acts on the outer circumferential area of ​​the turntable, so that when the rotating table is subjected to force, only the outer periphery is decelerated. At the same time, the lifting effect of the hydraulic cylinder will cause local stress concentration at the lifting position of the outer circumference of the rotating table. In this way, when the rotating table is braked, it will vibrate due to uneven force, and the vibration will reduce the rotation accuracy of the turntable. The reduced rotation accuracy of the turntable will further aggravate the damage to the turntable, seriously affecting the service life of the turntable. There are shortcomings. Summary of the invention

[0005] In order to improve the problem that stress concentration during turntable braking leads to reduced rotation accuracy of the turntable, thereby affecting the service life of the turntable, the present application provides a turntable with a balancing brake.

[0006] The present application provides a turntable with a balancing brake, which adopts the following technical solution: A turntable with a balancing brake comprises a base and a rotating table, wherein a rotating shaft seat is arranged on the rotating table, an encoder is coaxially sleeved on the rotating shaft seat, the rotating shaft seat and the rotating table are rotatably matched, a driving member for driving the rotating shaft seat to rotate is arranged on the base, a brake assembly is arranged between the base and the rotating table, the brake assembly comprises a brake ring arranged on the base and coaxially sleeved on the rotating shaft seat, and a brake member for driving the circumferential inner side wall of the brake ring to press against the circumferential outer side wall of the rotating shaft seat is arranged on the base.

[0007] By adopting the above technical solution, the driving member drives the rotating shaft seat to rotate, and the rotating shaft seat drives the rotating table to rotate synchronously. When the rotating table needs to stop rotating, the brake member drives the circumferential inner wall of the brake ring to press against the circumferential outer wall of the rotating shaft seat. Through the friction between the brake ring and the rotating shaft seat, the rotation speed of the rotating shaft seat is gradually reduced until the rotating shaft seat stops rotating. In this process, since the brake ring is sleeved on the rotating shaft seat, the rotating shaft seat is subjected to uniform circumferential friction, so that the rotating shaft seat can be decelerated smoothly, reducing the possibility of vibration of the rotating shaft seat due to uneven force, which is beneficial to extending the service life of the turntable.

[0008] Optionally, the brake ring includes a first brake disc ring, both ends of which are provided with first end ring seats, the first end ring seat is bolted to the base, a first sealing ring is provided between the first end ring seat and the base, the brake member includes the first end ring seat, the first brake disc ring and the base to form a first brake chamber, and the base is provided with a pressurized channel connected to the first brake chamber.

[0009] By adopting the above technical solution, maintenance personnel apply pressure to the pressurized channel through external pressurizing equipment. Since the first end ring seat is fixed on the base and a first sealing ring is installed between the first end ring seat and the base, the pressure inside the first brake chamber continues to increase, and the first brake disc ring is deformed. The deformed first brake disc ring is squeezed onto the rotating shaft seat by the increased pressure. Since the structural strength of each part of the first brake disc ring is the same, the circumferential inner wall of the first brake disc ring is tightly attached to the circumferential outer wall of the rotating shaft seat, and the friction between the first brake disc ring and the rotating shaft seat gradually reduces the rotation speed of the rotating shaft seat, thereby finally achieving the effect of stopping rotation.

[0010] Optionally, the driving member includes an outer shell seat arranged on the base, a stator electrically connected to the control system is arranged on the outer shell seat, a connecting ring seat is coaxially arranged on the rotating table relative to the axis of the rotating shaft seat, and a rotor opposite to the stator is coaxially arranged on the connecting ring seat.

[0011] By adopting the above technical solution, the control system supplies power to the stator. Under the action of the magnetic field force, the stator drives the rotor to rotate. The rotor drives the rotating table to rotate synchronously through the connecting ring seat. The rotating table drives the rotating shaft seat to rotate synchronously. At the same time, the rotating shaft seat plays a role in stabilizing the rotation state of the rotating table.

[0012] Optionally, a second brake disc ring coaxial with the first brake disc ring is arranged between the base and the connecting ring seat, the second brake disc ring is used to abut against the inner wall of the connecting ring seat, second end ring seats are arranged at both ends of the second brake disc ring, a second sealing ring is arranged between the second end ring seat and the base, a second brake chamber is formed between the second end ring seat, the second brake disc ring and the base, and the second brake chamber is connected to the pressurized channel.

[0013] By adopting the above technical solution, when the internal pressure of the pressurized channel increases, the pressure in the second brake chamber connected to the pressurized channel increases synchronously, and the increased pressure causes the second brake disc ring to deform, and the circumferential outer side wall of the deformed second brake disc ring is pressed against the circumferential inner side wall of the connecting ring seat, and the rotation speed of the connecting ring seat is gradually reduced by the friction between the second brake disc ring and the connecting ring seat. Under the joint action of the first brake disc ring and the second brake disc ring, the friction provided by the first brake disc ring and the second brake disc ring is dispersed, and the wear loss of the first brake disc ring and the second brake disc ring is reduced, so that the rotation speed of the rotating table can be rapidly reduced in a short time, which is conducive to shortening the time taken for the rotating table to stop rotating.

[0014] Optionally, a support groove for installing the second end ring seat is formed on the base, and a clamping ring seat is detachably provided on the base, and the clamping ring seat is used to fix the second end ring seat on the support groove.

[0015] By adopting the above technical solution, the clamping ring seat reduces the possibility that the second end ring seat drives the second brake sheet ring to move during the rotation of the rotating table.

[0016] Optionally, a first dirt storage groove is formed on the first end ring seat, and the first dirt storage groove is located at the contact point between the rotating shaft seat and the first brake disc ring. A second dirt storage groove is formed on the second end ring seat, and the second dirt storage groove is located at the contact point between the connecting ring seat and the second brake disc ring.

[0017] By adopting the above technical solution, the friction powder between the rotating shaft seat and the first brake plate ring will accumulate in the first dirt storage groove, and the friction powder between the connecting ring seat and the second brake plate ring will accumulate in the second dirt storage groove, thereby reducing the possibility of powder generated by friction diffusing into the interior of the turntable, which is beneficial to maintaining the working accuracy of the turntable, and at the same time facilitates subsequent maintenance personnel to clean up, which is beneficial to reducing the workload of maintenance personnel.

[0018] Optionally, an oil storage ring groove is formed at one end of the second end ring seat close to the clamping ring seat, and an oil retaining ring is arranged on the connecting ring seat, and the circumferential outer side wall of the oil retaining ring is in close contact with the circumferential inner side wall of the oil storage ring groove.

[0019] By adopting the above technical solution, the hydraulic oil that may overflow from the closed part of the pressurized channel will flow into the oil storage ring groove, thereby reducing the possibility of the hydraulic oil spreading in the turntable.

[0020] Optionally, a dust ring is detachably provided on the rotating table, the dust ring is rotatably engaged with the outer shell seat, a step groove is provided on a side of the dust ring close to the outer shell seat, and a storage groove is provided on a side of the outer shell seat facing the dust ring.

[0021] By adopting the above technical solution, the step groove improves the sealing between the dustproof ring and the turntable, and the storage groove can prevent external impurities from continuing to enter the turntable through the step groove, which is beneficial to improving the rotation accuracy of the turntable.

[0022] Optionally, the rotating table is integrally formed on the rotating shaft seat, and a first sewage discharge channel communicating with the first sewage storage tank is opened on the rotating table. A through pipe is connected between the rotating table and the connecting ring seat, and a second sewage discharge channel communicating with the second sewage storage tank is jointly opened on the rotating table and the connecting ring seat, and the second sewage discharge channel is connected to the through pipe.

[0023] By adopting the above technical solution, when maintenance personnel regularly perform maintenance on the turntable, the maintenance personnel connect the first sewage discharge channel and the second sewage discharge channel through an external dust suction device, and the wear powder accumulated in the first sewage storage tank and the second sewage storage tank can be directly extracted. In this process, the maintenance personnel do not need to disassemble the entire turntable equipment, which is beneficial to reduce the maintenance workload.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. The driving member drives the rotating shaft seat to rotate, and the rotating shaft seat drives the rotating table to rotate synchronously. When the rotating table needs to stop rotating, the brake member drives the circumferential inner wall of the brake ring to press against the circumferential outer wall of the rotating shaft seat. Through the friction between the brake ring and the rotating shaft seat, the rotating shaft seat gradually decreases its rotation speed until the rotating shaft seat stops rotating. In this process, since the brake ring is sleeved on the rotating shaft seat, the rotating shaft seat is subjected to circumferential uniform friction, so that the rotating shaft seat can be steadily decelerated, reducing the possibility of vibration of the rotating shaft seat due to uneven force, which is conducive to extending the service life of the turntable; 2. The maintenance personnel apply pressure to the pressurized channel through an external pressurizing device. Since the first end ring seat is fixed on the base and a first sealing ring is installed between the first end ring seat and the base, the pressure inside the first brake chamber increases continuously, and the first brake disc ring is deformed. The deformed first brake disc ring is squeezed onto the rotating shaft seat by the increased pressure. Since the structural strength of each part of the first brake disc ring is the same, the circumferential inner side wall of the first brake disc ring is tightly attached to the circumferential outer side wall of the rotating shaft seat. Then, the friction between the first brake disc ring and the rotating shaft seat gradually reduces the rotation speed of the rotating shaft seat. 3. The friction powder between the rotating shaft seat and the first brake disc ring will accumulate in the first dirt storage tank, and the friction powder between the connecting ring seat and the second brake disc ring will accumulate in the second dirt storage tank, which reduces the possibility of the powder generated by friction spreading to the inside of the turntable, which is conducive to maintaining the working accuracy of the turntable, and is convenient for subsequent maintenance personnel to clean up, which is conducive to reducing the work intensity of maintenance personnel; 4. When maintenance personnel regularly perform maintenance on the turntable, they connect the first sewage discharge channel and the second sewage discharge channel through external dust suction equipment, and the wear powder accumulated in the first sewage storage tank and the second sewage storage tank can be directly sucked out. In this process, the maintenance personnel do not need to disassemble the entire turntable equipment, which is conducive to reducing the maintenance workload. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application.

[0026] Figure 2 It is a cross-sectional view showing the positional relationship among the stator, rotor and rotating shaft seat in the embodiment of the present application.

[0027] Figure 3 yes Figure 2 Enlarged view of part A.

[0028] Description of reference numerals: 1. base; 2. rotating table; 3. rotating shaft seat; 4. encoder; 5. driving member; 51. housing seat; 52. stator; 53. connecting ring seat; 54. rotor; 6. brake assembly; 61. brake ring; 611. first brake disc ring; 612. first end ring seat; 613. first sealing ring; 62. brake member; 621. first brake chamber; 622. pressurizing channel; 7. second brake disc ring; 8. Second end ring seat; 9. Second sealing ring; 10. Second brake chamber; 11. Abutment groove; 12. Clamping ring seat; 13. First dirt storage groove; 14. Second dirt storage groove; 15. Oil storage ring groove; 16. Oil retaining ring; 17. Dustproof ring; 18. Step groove; 19. Storage groove; 20. First sewage discharge channel; 21. Through pipe; 22. Second sewage discharge channel; 23. First leak-proof rubber ring; 24. Second leak-proof rubber ring; 25. Dustproof head. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0030] The embodiment of the present application discloses a turntable with a balancing brake.

[0031] Reference Figure 1 A turntable with a balancing brake comprises a base 1 and a rotating platform 2. A rotating shaft seat 3 is integrally formed on the rotating platform 2. An encoder 4 is coaxially sleeved on the rotating shaft seat 3. The encoder 4 is bolted to the base 1. The rotating shaft seat 3 rotates in coordination with the rotating platform 2.

[0032] Reference Figure 1 , Figure 2 and Figure 3 A driving member 5 for driving the rotating shaft seat 3 to rotate is arranged on the base 1. The driving member 5 includes an outer shell seat 51 welded on the base 1. The outer shell seat 51 is hollow inside and open at both axial ends. A stator 52 electrically connected to the control system is arranged on the inner wall of the outer shell seat 51. A connecting ring seat 53 is coaxially bolted with the axis of the rotating shaft seat 3 on the rotating table 2. A rotor 54 opposite to the stator 52 is coaxially sleeved on the outer wall of the connecting ring seat 53.

[0033] Reference Figure 1 , Figure 2 and Figure 3 A dustproof ring 17 is bolted on the rotating table 2, and the dustproof ring 17 is rotatably matched with the outer shell seat 51. A step groove 18 is provided on the side of the dustproof ring 17 close to the outer shell seat 51, and a storage groove 19 is provided on the side of the outer shell seat 51 facing the dustproof ring 17.

[0034] The control system supplies power to the stator 52 , which generates a magnetic field around the rotor 54 . Under the action of the magnetic field force, the rotor 54 drives the connecting ring seat 53 to rotate, and the connecting ring seat 53 drives the rotating shaft seat 3 to rotate synchronously through the rotating table 2 . At the same time, the rotating shaft seat 3 stabilizes the rotation state of the rotating table 2 .

[0035] Reference Figure 1 , Figure 2 and Figure 3 A brake assembly 6 is arranged between the base 1 and the rotating table 2. The brake assembly 6 includes a brake ring 61 arranged on the base 1 and coaxially sleeved on the rotating shaft seat 3. A brake member 62 is arranged on the base 1, which drives the circumferential inner wall of the brake ring 61 to press against the circumferential outer wall of the rotating shaft seat 3.

[0036] Reference Figure 1 , Figure 2 and Figure 3 The brake ring 61 includes a first brake disc ring 611 coaxially sleeved on the rotating shaft seat 3, the circumferential inner wall of the first brake disc ring 611 is close to the circumferential outer wall of the rotating shaft seat 3, both ends of the first brake disc ring 611 are integrally formed with a first end ring seat 612, the first end ring seat 612 is bolted to the base 1, and a first sealing ring 613 is arranged between the first end ring seat 612 and the base 1.

[0037] Reference Figure 1 , Figure 2 and Figure 3 A second brake disc ring 7 coaxial with the first brake disc ring 611 is arranged between the base 1 and the connecting ring seat 53, the circumferential outer wall of the second brake disc ring 7 is close to the circumferential inner wall of the connecting ring seat 53, and second end ring seats 8 are integrally formed at both ends of the second brake disc ring 7. The second end ring seat 8 is bolted to the base 1, and a second sealing ring 9 is arranged between the second end ring seat 8 and the base 1.

[0038] Reference Figure 1 , Figure 2 and Figure 3 The brake component 62 includes a first end ring seat 612, a first brake disc ring 611 and a base 1 to form a first brake chamber 621, a pressurized channel 622 connected to the first brake chamber 621 is opened on the base 1, and a second end ring seat 8, a second brake disc ring 7 and the base 1 to form a second brake chamber 10, and the second brake chamber 10 is connected to the pressurized channel 622.

[0039] When the rotating table 2 needs to stop rotating, the worker injects hydraulic oil into the pressurized channel 622 through an external pressurizing device. Since the first end ring seat 612 is fixed on the base 1 and a first sealing ring 613 is installed between the first end ring seat 612 and the base 1, the injected hydraulic oil causes the pressure inside the first brake chamber 621 to continuously increase, thereby causing the first brake disc ring 611 to deform.

[0040] Since the first brake disc ring 611 has the same structural strength at all locations, the circumferential inner wall of the deformed first brake disc ring 611 is pressed against the circumferential outer wall of the rotating shaft seat 3, and the friction between the first brake disc ring 611 and the rotating shaft seat 3 gradually reduces the rotation speed of the rotating shaft seat 3.

[0041] At the same time, hydraulic oil is injected to increase the pressure in the second brake chamber 10 synchronously. The increased pressure causes the second brake disc ring 7 to deform. Since the structural strength of the second brake disc ring 7 is the same at all places, the circumferential outer side wall of the deformed second brake disc ring 7 is pressed against the circumferential inner side wall of the connecting ring seat 53.

[0042] The friction force between the second brake plate ring 7 and the connecting ring seat 53 synchronously decelerates the connecting ring seat 53. The friction force required to stop the rotating table 2 is dispersed by the first brake plate ring 611 and the second brake plate ring 7, so that the rotation speed of the rotating table 2 can be steadily and quickly reduced in a short time, thereby reducing the possibility of vibration of the rotating table 2 during the deceleration process.

[0043] Reference Figure 1 , Figure 2 and Figure 3 A base groove 11 for installing the second end ring seat 8 is opened on the base 1, and a clamping ring seat 12 is arranged between the base 1 and the rotating table 2. The clamping ring seat 12 is bolted to the base 1. The clamping ring seat 12 is used to press the second end ring seat 8 on the base groove 11. An oil storage ring groove 15 is opened at one end of the second end ring seat 8 close to the clamping ring seat 12, and an oil retaining ring 16 is integrally formed on the connecting ring seat 53. The circumferential outer side wall of the oil retaining ring 16 is in close contact with the circumferential inner side wall of the oil storage ring groove 15.

[0044] The hydraulic oil that may overflow from the closed part of the pressurized channel 622 will flow into the oil storage ring groove 15, thereby reducing the diffusion of the hydraulic oil inside the turntable.

[0045] Reference Figure 1 , Figure 2 and Figure 3A first dirt storage groove 13 is provided on the first end ring seat 612, and the first dirt storage groove 13 is located at the contact point between the rotating shaft seat 3 and the first brake disc ring 611. A first leakage-proof rubber ring 23 is arranged between the rotating shaft seat 3 and the first dirt storage groove 13. A second dirt storage groove 14 is provided on the second end ring seat 8, and the second dirt storage groove 14 is located at the contact point between the connecting ring seat 53 and the second brake disc ring 7. A second leakage-proof rubber ring 24 is arranged between the connecting ring seat 53 and the second dirt storage groove 14.

[0046] Reference Figure 1 , Figure 2 and Figure 3 A first sewage discharge channel 20 communicating with the first sewage storage tank 13 is provided on the rotating table 2, and the first sewage discharge channel 20 passes through the rotating table 2 and the rotating shaft seat 3. A through pipe 21 is inserted between the rotating table 2 and the connecting ring seat 53. A second sewage discharge channel 22 communicating with the second sewage storage tank 14 is jointly provided on the rotating table 2 and the connecting ring seat 53. The second sewage discharge channel 22 is communicated with the through pipe 21. The first sewage discharge channel 20 and the second sewage discharge channel 22 are both bolted with a dustproof head 25 at the connection points with the rotating table 2.

[0047] During the operation of the turntable, the first anti-leakage rubber ring 23 prevents the friction powder of the first brake disc ring 611 accumulated in the first sewage storage groove 13 from spreading, and the second anti-leakage rubber ring 24 prevents the friction powder of the second brake disc ring 7 accumulated in the second sewage storage groove 14 from spreading. After the turntable has been working for a period of time, the maintenance personnel connect the external dust collection equipment to the first sewage discharge channel 20 and the second sewage discharge channel 22.

[0048] The friction powder accumulated in the first sewage storage tank 13 will be extracted through the first sewage discharge channel 20, and the friction powder accumulated in the second sewage storage tank 14 will be extracted through the second sewage discharge channel 22. In this process, the maintenance personnel can understand the wear conditions of the first brake plate ring 611 and the second brake plate ring 7 according to the quality of the extracted friction powder. The friction powder accumulated in the first sewage storage tank 13 and the second sewage storage tank 14 can be cleaned without disassembling the entire turntable. At the same time, it is convenient for the maintenance personnel to overhaul the turntable according to the wear conditions.

[0049] The implementation principle of a turntable with a balancing brake in an embodiment of the present application is: the control system supplies power to the stator 52, the stator 52 will generate a magnetic field around the rotor 54, under the action of the magnetic field force, the rotor 54 drives the connecting ring seat 53 to rotate, and the connecting ring seat 53 drives the rotating shaft seat 3 to rotate synchronously through the rotating table 2, and the rotating shaft seat 3 stabilizes the rotation state of the rotating table 2.

[0050] When the rotating table 2 needs to stop rotating, the worker injects hydraulic oil into the pressurized channel 622 through an external pressurizing device. Since the first end ring seat 612 is fixed on the base 1 and a first sealing ring 613 is installed between the first end ring seat 612 and the base 1, the injected hydraulic oil causes the pressure inside the first brake chamber 621 to continuously increase, thereby causing the first brake disc ring 611 to deform.

[0051] Since the first brake disc ring 611 has the same structural strength at all locations, the circumferential inner wall of the deformed first brake disc ring 611 is pressed against the circumferential outer wall of the rotating shaft seat 3, and the friction between the first brake disc ring 611 and the rotating shaft seat 3 gradually reduces the rotation speed of the rotating shaft seat 3.

[0052] At the same time, hydraulic oil is injected to increase the pressure in the second brake chamber 10 synchronously. The increased pressure causes the second brake disc ring 7 to deform. Since the structural strength of the second brake disc ring 7 is the same at all places, the circumferential outer side wall of the deformed second brake disc ring 7 is pressed against the circumferential inner side wall of the connecting ring seat 53.

[0053] The friction force between the second brake plate ring 7 and the connecting ring seat 53 synchronously decelerates the connecting ring seat 53. The friction force required to stop the rotating table 2 is dispersed by the first brake plate ring 611 and the second brake plate ring 7, so that the rotation speed of the rotating table 2 can be steadily and quickly reduced in a short time, thereby reducing the possibility of vibration of the rotating table 2 during the deceleration process.

[0054] The hydraulic oil that may overflow from the closed part of the pressurized channel 622 will flow into the oil storage ring groove 15, thereby reducing the diffusion of the hydraulic oil inside the turntable.

[0055] During the operation of the turntable, the first anti-leakage rubber ring 23 prevents the friction powder of the first brake disc ring 611 accumulated in the first sewage storage groove 13 from spreading, and the second anti-leakage rubber ring 24 prevents the friction powder of the second brake disc ring 7 accumulated in the second sewage storage groove 14 from spreading. After the turntable has been working for a period of time, the maintenance personnel connect the external dust collection equipment to the first sewage discharge channel 20 and the second sewage discharge channel 22.

[0056] The friction powder accumulated in the first sewage storage tank 13 will be extracted through the first sewage discharge channel 20, and the friction powder accumulated in the second sewage storage tank 14 will be extracted through the second sewage discharge channel 22. In this process, the maintenance personnel can understand the wear conditions of the first brake plate ring 611 and the second brake plate ring 7 according to the quality of the extracted friction powder. The friction powder accumulated in the first sewage storage tank 13 and the second sewage storage tank 14 can be cleaned without disassembling the entire turntable. At the same time, it is convenient for the maintenance personnel to overhaul the turntable according to the wear conditions.

[0057] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A turntable with a balancing brake, characterized in that: The invention comprises a base (1) and a rotating table (2), wherein a rotating shaft seat (3) is arranged on the rotating table (2), an encoder (4) is coaxially sleeved on the rotating shaft seat (3), the rotating shaft seat (3) and the rotating table (2) are rotatably matched, a driving member (5) is arranged on the base (1) for driving the rotating shaft seat (3) to rotate, a brake assembly (6) is arranged between the base (1) and the rotating table (2), the brake assembly (6) comprises a brake ring (61) arranged on the base (1) and coaxially sleeved on the rotating shaft seat (3), and a brake member (62) is arranged on the base (1) for driving the circumferential inner wall of the brake ring (61) to press against the circumferential outer wall of the rotating shaft seat (3).

2. A turntable with a balanced brake according to claim 1, characterized in that: The brake ring (61) comprises a first brake disc ring (611), both ends of the first brake disc ring (611) are provided with a first end ring seat (612), the first end ring seat (612) is bolted to the base (1), a first sealing ring (613) is provided between the first end ring seat (612) and the base (1), the brake component (62) comprises the first end ring seat (612), the first brake disc ring (611) and the base (1) to form a first brake chamber (621), and the base (1) is provided with a pressurized channel (622) connected to the first brake chamber (621).

3. A turntable with a balance brake according to claim 2, characterized in that: The driving member (5) comprises an outer shell seat (51) arranged on the base (1), a stator (52) electrically connected to a control system being arranged on the outer shell seat (51), a connecting ring seat (53) being coaxially arranged on the rotating table (2) relative to the axis of the rotating shaft seat (3), and a rotor (54) being coaxially arranged on the connecting ring seat (53) opposite to the stator (52).

4. A turntable with a balance brake according to claim 3, characterized in that: A second brake disc ring (7) coaxial with the first brake disc ring (611) is arranged between the base (1) and the connecting ring seat (53); the second brake disc ring (7) is used to abut against the inner wall of the connecting ring seat (53); second end ring seats (8) are arranged at both ends of the second brake disc ring (7); a second sealing ring (9) is arranged between the second end ring seat (8) and the base (1); a second brake chamber (10) is formed between the second end ring seat (8), the second brake disc ring (7) and the base (1); and the second brake chamber (10) is communicated with the pressurized channel (622).

5. A turntable with a balance brake according to claim 4, characterized in that: The base (1) is provided with a support groove (11) for mounting the second end ring seat (8), and the base (1) is detachably provided with a clamping ring seat (12), and the clamping ring seat (12) is used to fix the second end ring seat (8) on the support groove (11).

6. A turntable with a balance brake according to claim 5, characterized in that: The first end ring seat (612) is provided with a first dirt storage groove (13), and the first dirt storage groove (13) is located at the contact point between the rotating shaft seat (3) and the first brake disc ring (611); the second end ring seat (8) is provided with a second dirt storage groove (14), and the second dirt storage groove (14) is located at the contact point between the connecting ring seat (53) and the second brake disc ring (7).

7. A turntable with a balance brake according to claim 5, characterized in that: An oil storage ring groove (15) is formed at one end of the second end ring seat (8) close to the clamping ring seat (12), and an oil retaining ring (16) is arranged on the connecting ring seat (53), and the circumferential outer side wall of the oil retaining ring (16) is in close contact with the circumferential inner side wall of the oil storage ring groove (15).

8. The turntable with a balance brake according to claim 3, characterized in that: A dustproof ring (17) is detachably provided on the rotating table (2), and the dustproof ring (17) is rotatably matched with the outer shell seat (51). A step groove (18) is provided on a side of the dustproof ring (17) close to the outer shell seat (51), and a storage groove (19) is provided on a side of the outer shell seat (51) facing the dustproof ring (17).

9. A turntable with a balance brake according to claim 6, characterized in that: The rotating table (2) is integrally formed on the rotating shaft seat (3); a first sewage discharge channel (20) communicating with the first sewage storage tank (13) is provided on the rotating table (2); a through pipe (21) is connected between the rotating table (2) and the connecting ring seat (53); a second sewage discharge channel (22) communicating with the second sewage storage tank (14) is provided on the rotating table (2) and the connecting ring seat (53); the second sewage discharge channel (22) is connected with the through pipe (21).

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