Transmission mechanism of ball valve grinding machine

Abstract

The utility model relates to ball valve processing equipment, in particular to a transmission mechanism of a ball valve grinding machine, which comprises a working table, a turntable and a grinding mechanism are arranged on the working table, a first support is arranged on the turntable, a rotating shaft is arranged on the first support, and a first power source and a second power source are both positioned below the working table. The second power source is in transmission connection with a driving shaft, the driving shaft is in transmission connection with a synchronizing shaft, the synchronizing shaft is arranged on the first support, the rotating center line of the synchronizing shaft is perpendicular to the rotating center line of the driving shaft, the synchronizing shaft is in transmission connection with the rotating shaft, and the rotating disc is connected with a driving part which is in transmission connection with the first power source. The rotating disc and the driving part are provided with through holes in a penetrating mode for the driving shaft to penetrate through, the rotating speed of the driving part is different from that of the driving shaft, the second power source is located below the workbench and can be connected with a power source, the winding problem is avoided, and the second power source cannot move in the working process and is good in stability.

Description

Technical Field

[0001] The utility model relates to ball valve processing equipment, in particular to a transmission mechanism of a ball valve grinding machine. Background Art

[0002] A Chinese invention patent with announcement number CN104325387B discloses a ball grinding machine, which is designed with a clamping and rotating mechanism to clamp a ball and drive the ball to rotate. The clamping and rotating mechanism is arranged on a rotating workbench and can grind the entire spherical surface. However, a second motor connected to a pin in the clamping and rotating mechanism is arranged on a bracket and moves with the bracket under the drive of the rotating workbench. In order to prevent winding, the second motor cannot be connected to the power supply. Utility Model Content

[0003] In view of the technical problems existing in the background technology, the utility model aims to provide a transmission mechanism of a ball valve grinder, wherein a first power source and a second power source are both located below a workbench, and the second power source can be connected to supply power.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: the transmission mechanism of the ball valve grinding machine comprises a workbench, a turntable and a grinding mechanism are arranged on the workbench, the turntable is transmission-connected to a first power source, a first bracket is arranged on the turntable, a rotating shaft is arranged on the first bracket, and the rotating shaft is transmission-connected to a second power source, wherein the first power source and the second power source are both located below the workbench, the second power source is transmission-connected to a driving shaft, the bottom end of the driving shaft is transmission-connected to the second power source, the driving shaft is transmission-connected to a synchronous shaft, the synchronous shaft is arranged on the first bracket, the rotation center line of the synchronous shaft is perpendicular to the rotation center line of the driving shaft, the synchronous shaft is transmission-connected to the rotating shaft, the turntable is connected to a driving part, the driving part is transmission-connected to the first power source, a through hole is provided through the turntable and the driving part for the driving shaft to pass through, the rotation center line of the driving part is consistent with the rotation center line of the driving shaft, and the rotation speed of the driving part is different from that of the driving shaft.

[0005] In this solution, the second power source is located under the workbench and can be connected to a power source without the problem of winding wires. In addition, the second power source will not move during operation and has good stability.

[0006] Preferably, the synchronization shaft is connected to a first synchronization wheel, the drive shaft is connected to a second synchronization wheel, and a synchronization belt is wound around the first synchronization wheel and the second synchronization wheel.

[0007] In this solution, synchronous belt drive is suitable for low noise, low speed and small torque occasions.

[0008] Preferably, a second bracket is further provided on the turntable, the second bracket is arranged opposite to the first bracket, the drive shaft is detachably connected with a mounting shaft for penetrating a ball valve, and a thimble is provided on the second bracket, the thimble abuts against one end of the mounting shaft.

[0009] In this scheme, the installation shaft is removed to penetrate the ball valve, one end of the installation shaft is in contact with the ejector pin, and the other end is connected to the drive shaft to stably drive the ball valve to rotate.

[0010] Preferably, the other end of the mounting shaft is provided with an inner hexagon, and one end of the driving shaft is correspondingly provided with an outer hexagon.

[0011] In this solution, the nesting of inner and outer hexagons ensures reliable connection between the mounting shaft and the drive shaft and effective transmission.

[0012] Preferably, the drive shaft is a spline shaft, and the drive shaft is arranged to move axially relative to the second synchronous wheel.

[0013] In this solution, the axial movement of the drive shaft relative to the second synchronous wheel provides space for disassembly of the mounting shaft. The drive shaft is configured as a spline shaft, and the second synchronous wheel and the drive shaft can transmit reliably.

[0014] Preferably, the drive shaft is threadedly connected with a first limit member and a second limit member, the first limit member abuts against the first bracket, and the second limit member abuts against the second synchronous wheel.

[0015] In this solution, the first limit member and the second limit member are rotated into place so that the drive shaft will not move axially relative to the second synchronous wheel during operation, and the first limit member and the second limit member are rotated relatively away from each other so that the drive shaft can move axially.

[0016] Preferably, the first power source is transmission-connected with a first gear, the driving part is installed with a second gear, and the first gear is meshed with the second gear.

[0017] In this scheme, the gear transmission torque is large.

[0018] Preferably, the first power source is arranged on the first mounting plate, the second power source is arranged on the second mounting plate, the rotation center line of the output shaft of the second power source is consistent with the rotation center line of the drive shaft, and the rotation center line of the output shaft of the first power source is consistent with the rotation center line of the first gear.

[0019] In this solution, the output shaft of the second power source is directly connected to the drive shaft, and the output shaft of the first power source is directly connected to the first gear, and the structure is compact.

[0020] Preferably, a first bevel gear is installed at the top end of the driving shaft, the first bevel gear is meshed with the second bevel gear, and the second bevel gear is connected to the synchronization shaft.

[0021] In this solution, the transmission is stable and the load-bearing capacity is high.

[0022] The beneficial effects of the utility model are as follows: the second power source is located below the workbench and can be connected to a power source without the problem of winding, and the second power source will not move during operation, and has good stability; the axial movement of the drive shaft relative to the second synchronous wheel provides space for the disassembly of the mounting shaft, the drive shaft is set as a spline shaft, and the second synchronous wheel and the drive shaft are reliably transmitted. Therefore, compared with the prior art, the utility model has substantial characteristics and progress. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The following describes the relevant details and working principles of the implementation methods and embodiments of the present utility model in conjunction with the accompanying drawings.

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0025] Figure 2 for Figure 1 A is an enlarged view of the middle image.

[0026] Figure 3 It is a structural schematic diagram of the synchronous shaft and the rotating shaft in the utility model.

[0027] Figure 4 It is a structural schematic diagram of the first power source and the second power source in the utility model.

[0028] Figure 5 It is a schematic diagram of the structure of the first gear and the second gear in the utility model.

[0029] In the figure: 1. workbench; 3. second power source; 6. turntable; 7. first power source; 8. first bracket; 9. second bracket; 10. rotating shaft; 11. grinding mechanism; 13. first gear; 14. driving shaft; 15. first bevel gear; 16. second bevel gear; 17. synchronous shaft; 18. driving part; 19. second gear; 20. first synchronous wheel; 21. second synchronous wheel; 22. synchronous belt; 23. first limit member; 24. second limit member. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the implementation of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field without making creative work based on the embodiments of the utility model are within the scope of protection of the utility model.

[0031] In the description of the present application, it should be understood that the terms "upper", "lower", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0032] In the description of this application, the terms "first", "second", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0033] See attached Figure 1-5 In the embodiment of the present embodiment, a transmission mechanism of a ball valve grinder includes a workbench 1, on which a turntable 6 and a grinding mechanism 11 are provided, the turntable 6 is transmission-connected to a first power source 7, a first bracket 8 is provided on the turntable 6, a rotating shaft 10 is provided on the first bracket 8, and the rotating shaft 10 is transmission-connected to a second power source 3.

[0034] Among them, the first power source 7 and the second power source 3 are both located below the workbench 1, the first power source 7 is transmission-connected with the first gear 13, the second power source 3 is transmission-connected with the drive shaft 14, the bottom end of the drive shaft 14 is transmission-connected with the second power source 3, the top end of the drive shaft 14 is installed with the first bevel gear 15, the first bevel gear 15 is meshed with the second bevel gear 16, the second bevel gear 16 is connected with the synchronization shaft 17, the synchronization shaft 17 is arranged on the first bracket 8, the rotation center line of the synchronization shaft 17 is perpendicular to the rotation center line of the drive shaft 14, the synchronization shaft 17 is located below the rotating shaft 10, the synchronization shaft 17 is connected with the first synchronization wheel 20, the drive shaft 14 is connected with the second synchronization wheel 21, the first synchronization wheel 20 and the second synchronization wheel 21 are wound with The synchronous belt 22 and the rotation center line of the synchronous shaft 17 are parallel to the rotation center line of the rotating shaft 10. The turntable 6 is connected to the driving part 18, and the driving part 18 is equipped with a second gear 19. The first gear 13 is meshed with the second gear 19. The turntable 6 and the driving part 18 are penetrated by a through hole for the driving shaft 14 to pass through. The rotation center line of the driving part 18 is consistent with the rotation center line of the driving shaft 14. The rotation speed of the driving part 18 is different from that of the driving shaft 14. The first power source 7 is arranged on the first mounting plate, and the second power source 3 is arranged on the second mounting plate. The rotation center line of the output shaft of the second power source 3 is consistent with the rotation center line of the driving shaft 14, and the rotation center line of the output shaft of the first power source 7 is consistent with the rotation center line of the first gear 13.

[0035] In this embodiment, the first power source 7 drives the driving part 18 to rotate through the first gear 13 and the second gear 19, driving the turntable 6 and the first bracket 8 to rotate, and the second power source 3 drives the driving shaft 14 to rotate. Because the rotation speeds of the driving part 18 and the driving shaft 14 are different, there is a speed difference between the two, so the first bevel gear 15 rotates relative to the second bevel gear 16, and the driving shaft 14 drives the synchronous shaft 17 to rotate through the first bevel gear 15 and the second bevel gear 16. The synchronous shaft 17 drives the rotating shaft 10 to rotate through the first synchronous wheel 20, the synchronous belt 22 and the second synchronous wheel 21 to realize three-dimensional rotation. Among them, the second power source 3 is located below the workbench 1, and can be connected to the power supply without winding problems. The second power source 3 will not move during operation and has good stability. The driving part 18 and the driving shaft 14 are concentrically arranged and do not interfere with each other. The first power source 7 and the second power source 3 are arranged on corresponding mounting plates, and the output shafts are respectively connected to the driving shaft 14 and the first gear 13, with a compact structure.

[0036] In other alternative embodiments, the synchronization shaft 17 and the rotating shaft 10 may also be driven by chains or gears, which is a mature technology; the drive unit 18 and the first power source 7 may also be driven by chains or synchronous belts 22, which is a mature technology; the drive shaft 14 and the synchronization shaft 17 may also be driven by worm gears or universal joints, as long as the rotation centerline of the rotating shaft 10 intersects with the rotation centerline of the drive shaft 14.

[0037] See attached Figure 2-3 A second bracket 9 is also provided on the turntable 6, and the second bracket 9 is arranged opposite to the first bracket 8. The drive shaft 14 is detachably connected with a mounting shaft for penetrating a ball valve. A thimble is provided on the second bracket 9, and the thimble abuts against one end of the mounting shaft. An inner hexagon is provided at the other end of the mounting shaft, and an outer hexagon is correspondingly provided at one end of the drive shaft 14. The drive shaft 14 is a spline shaft, and the drive shaft 14 is axially movable relative to the second synchronous wheel 21. The drive shaft 14 is threadedly connected with a first limit member 23 and a second limit member 24. The first limit member 23 abuts against the first bracket 8, and the second limit member 24 abuts against the second synchronous wheel 21.

[0038] In this embodiment, during installation, the installation shaft passes through the ball valve and is connected to the drive shaft 14 through the inner and outer hexagonal nesting. The axial movement of the drive shaft 14 relative to the second synchronous wheel 21 drives the installation shaft to abut against the ejector pin, and the first limit member 23 and the second limit member 24 are tightened. The two cooperate to limit the axial movement of the drive shaft 14 relative to the second synchronous wheel 21.

[0039] In other alternative embodiments, installation can be achieved by ejecting the installation shaft with two ejectors, and the rotating shaft drives one of the ejectors to rotate. Alternatively, a clamp can clamp one end of the installation shaft, and the ejector can press against the other end of the installation shaft, and the rotating shaft can drive the clamp to rotate. This is a mature technology.

[0040] The above is a preferred embodiment of the utility model, and it should be noted that the protection scope of the utility model is not limited thereto. For those skilled in the art, multiple improvements and modifications or equivalent replacements can be made without departing from the equivalent utility model concept of the technical scope disclosed by the utility model, which are also regarded as the protection scope of the utility model.

Claims

1. A transmission mechanism of a ball valve grinding machine, comprising a workbench (1), on which is provided A rotating disk (6) is connected to a first power source (7) in a transmission manner. A first bracket (8) is provided on the rotating disk (6). A rotating shaft (10) is provided on the first bracket (8). The rotating shaft (10) is connected to a second power source (3) in a transmission manner. Grinding mechanism (11); Features: The first power source (7) and the second power source (3) are both located below the workbench (1), and the second power source (3) is drivingly connected to a drive shaft (14); The bottom end of the driving shaft (14) is drivingly connected to the second power source (3), the driving shaft (14) is drivingly connected to a synchronizing shaft (17), the synchronizing shaft (17) is arranged on the first bracket (8), the rotation centerline of the synchronizing shaft (17) is perpendicular to the rotation centerline of the driving shaft (14), and the synchronizing shaft (17) is drivingly connected to the rotating shaft (10); The rotating disk (6) is connected to a driving part (18), the driving part (18) is in driving connection with the first power source (7), a through hole is provided through the rotating disk (6) and the driving part (18) for the driving shaft (14) to pass through, the rotation center line of the driving part (18) is consistent with the rotation center line of the driving shaft (14), and the driving part (18) and the driving shaft (14) have different rotation speeds.

2. The transmission mechanism of a ball valve grinding machine according to claim 1, characterized in that: The synchronization shaft (17) is connected to a first synchronization wheel (20), the drive shaft (14) is connected to a second synchronization wheel (21), and a synchronization belt (22) is wound around the first synchronization wheel (20) and the second synchronization wheel (21).

3. The transmission mechanism of a ball valve grinding machine according to claim 2, characterized in that: The turntable (6) is also provided with a second bracket (9), the second bracket (9) being arranged opposite to the first bracket (8), the drive shaft (14) being detachably connected to a mounting shaft for inserting a ball valve, the second bracket (9) being provided with an ejector pin, the ejector pin being in contact with one end of the mounting shaft.

4. The transmission mechanism of a ball valve grinding machine according to claim 3, characterized in that: The other end of the mounting shaft is provided with an inner hexagon socket, and one end of the driving shaft (14) is correspondingly provided with an outer hexagon socket.

5. The transmission mechanism of a ball valve grinding machine according to claim 3, characterized in that: The drive shaft (14) is a spline shaft, and the drive shaft (14) is axially movable relative to the second synchronous wheel (21).

6. The transmission mechanism of a ball valve grinding machine according to claim 5, characterized in that: The drive shaft (14) is threadedly connected with a first limiting member (23) and a second limiting member (24); the first limiting member (23) abuts against the first bracket (8), and the second limiting member (24) abuts against the second synchronous wheel (21).

7. The transmission mechanism of a ball valve grinding machine according to claim 1, characterized in that: The first power source (7) is transmission-connected to a first gear (13), the driving unit (18) is mounted with a second gear (19), and the first gear (13) is meshed with the second gear (19).

8. The transmission mechanism of a ball valve grinding machine according to claim 7, characterized in that: The first power source (7) is arranged on the first mounting plate, the second power source (3) is arranged on the second mounting plate, the rotation center line of the output shaft of the second power source (3) is consistent with the rotation center line of the drive shaft (14), and the rotation center line of the output shaft of the first power source (7) is consistent with the rotation center line of the first gear (13).

9. The transmission mechanism of a ball valve grinding machine according to claim 1, characterized in that: A first bevel gear (15) is mounted on the top end of the driving shaft (14); the first bevel gear (15) is meshed with a second bevel gear (16); and the second bevel gear (16) is connected to a synchronous shaft (17).

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