Coupling with clamping protection function

Abstract

The utility model belongs to the technical field of couplings, and discloses a coupling with a clamping protection function, which comprises a driving disc connected with a driving shaft of a motor, a driven disc arranged at one end, far away from the motor, of the driving disc, and a driven shaft sleeve arranged on the driven disc and fixed with a variable ceramic vacuum capacitor, the driven disc is provided with a transmission assembly which is used for being connected with the driving disc and enabling the driving disc to idle after the vacuum capacitance capacity of the variable ceramic vacuum capacitor is adjusted to a set value. In the application, through the arrangement of the transmission assembly, when the motor drives the driving disc to rotate, the driven disc and the driven shaft sleeve synchronously rotate along with the driving disc, so that the variable ceramic vacuum capacitor rotates, the capacity of the vacuum capacitor is adjusted, and the transmission assembly enables the driving disc to idle after the capacity of the vacuum capacitor is adjusted to a set value; and the vacuum capacitor is prevented from being damaged.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, and in particular to a coupling with a locking protection function. Background Technology

[0002] In the current electronics field, variable ceramic vacuum capacitor devices are widely used in the semiconductor field, such as plasma generation equipment, dielectric heating and semiconductor manufacturing; among them, vacuum capacitors are used as the impedance variation part in the automatic matching network in chip and flat panel display manufacturing.

[0003] Currently, most variable vacuum capacitors have their support sleeves placed outside the mounting ring, with a rotating screw passing through the center. Rotating the screw drives the movable electrode in a reciprocating motion, thus adjusting the capacitor's capacitance. With the increasing application of variable vacuum capacitors in semiconductor manufacturing equipment, existing technologies increasingly use external drive motors connected to couplings to rotate the variable ceramic vacuum capacitor for capacitance adjustment. However, once the capacitance is adjusted to the set value, if the motor continues to operate, it may continue to rotate the variable ceramic vacuum capacitor, potentially damaging it. Therefore, the coupling design in these technologies needs improvement. Utility Model Content

[0004] To solve the above problems, this utility model provides a coupling with a locking protection function.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a coupling with a locking protection function, including a driving disc for connecting to the drive shaft of a motor, a driven disc disposed at the end of the driving disc away from the motor, and a driven shaft sleeve disposed on the driven disc and fixed to a variable ceramic vacuum capacitor. The driven disc is provided with a transmission component for connecting to the driving disc and for causing the driving disc to idle after the vacuum capacitance of the variable ceramic vacuum capacitor is adjusted to a set value.

[0006] By adopting the above technical solution, the transmission component is designed so that when the motor drives the active disk to rotate, the driven disk and the driven bushing rotate synchronously with the active disk, thereby causing the variable ceramic vacuum capacitor to rotate and the capacity of the vacuum capacitor to be adjusted. After the capacity of the vacuum capacitor is adjusted to the set value, the transmission component allows the active disk to idle, which helps to prevent the vacuum capacitor from being damaged.

[0007] Furthermore, the transmission assembly includes a guide plate detachably connected to the side of the driven disc near the driving disc. Two symmetrically arranged mounting blocks are fixed on the side of the driven disc away from the driving disc. Two symmetrically arranged mounting holes are provided on the side of the driven disc near the driving disc, each extending into the mounting block. The transmission assembly also includes a clamping bolt threaded through the side wall of the mounting block away from the driving disc, a spring disposed in the mounting hole and abutting against the end of the clamping bolt near the driving disc, and a steel ball fixed to the end of the spring away from the clamping bolt. The guide plate has a limiting hole for the steel ball to pass through and to prevent the steel ball from falling off. The side wall of the driving disc near the driven disc has multiple arc-shaped grooves evenly distributed about the axis of the driving disc and abutting against the side of the steel ball away from the clamping bolt. Two springs and two steel balls are provided, each located in one of the two mounting holes.

[0008] By adopting the above technical solution, when the vacuum capacitor capacity is adjusted to the set value, if the motor continues to drive the drive plate to rotate, the drive plate will start to slip and spin freely because the end of the clamping bolt on the driven plate is connected to a spring and a steel ball. The spring, the steel ball and the arc groove work together to prevent the vacuum capacitor from being damaged as the motor continues to rotate.

[0009] Furthermore, the active disk has an integrally formed guide shaft coaxially arranged with the active disk on the side near the driven disk. Both the guide plate and the active disk have through holes for the guide shaft to pass through. The guide plate has a fixing bolt that is clearance-fitted with the guide plate on the side near the active disk. The fixing bolt is threaded to the side of the driven disk near the active disk. There are four fixing bolts, which are evenly distributed about the axis of the driven disk.

[0010] By adopting the above technical solution, the setting of the fixing bolts facilitates the detachable connection of the force guide plate, so as to assemble the spring and steel ball.

[0011] Furthermore, the driving disc is provided with a first threaded hole for a fastening screw to be threaded through, and the driven bushing is provided with a second threaded hole for a fastening screw to be threaded through.

[0012] By adopting the above technical solution, the operator can use multiple fastening screws to fix the active disc to the drive shaft of the motor and the driven bushing to the rotating shaft of the variable ceramic vacuum capacitor, so that the variable ceramic vacuum capacitor rotates with the motor during operation, thereby adjusting the capacity of the vacuum capacitor.

[0013] Furthermore, both sides of the driven bushing are provided with cutting surfaces, and the cutting surfaces on both sides of the driven bushing are respectively located between two mounting blocks.

[0014] Furthermore, a fixing screw that is clearance-fitted with the driven bushing is provided through the driven bushing. The fixing screw is threaded to the side of the driven bushing away from the driving bushing. There are two fixing screws, which are symmetrically arranged about the axis of the driven bushing.

[0015] By adopting the above technical solution,

[0016] In summary, this utility model has the following beneficial effects:

[0017] 1. In this application, the transmission component is configured such that when the motor drives the drive disk to rotate, the driven disk and the driven bushing rotate synchronously with the drive disk, thereby causing the variable ceramic vacuum capacitor to rotate and the capacity of the vacuum capacitor to be adjusted. After the capacity of the vacuum capacitor is adjusted to the set value, the transmission component allows the drive disk to idle, which helps to prevent the vacuum capacitor from being damaged.

[0018] 2. In this application, when the vacuum capacitor capacity is adjusted to the set value, if the motor continues to drive the drive plate to rotate, since the end of the clamping bolt on the driven plate is connected to a spring and a steel ball, the spring, the steel ball and the arc groove work together to make the drive plate start to slip and rotate freely, which helps to prevent the vacuum capacitor from being damaged as the motor continues to rotate. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0020] Figure 2 yes Figure 1 A structural diagram from another perspective;

[0021] Figure 3 yes Figure 2 The main view;

[0022] Figure 4 This is a plan view of an embodiment of the present utility model;

[0023] Figure 5 This is an exploded structural diagram of an embodiment of the present invention.

[0024] In the diagram: 1. Driven disc; 11. Arc-shaped groove; 12. Guide shaft; 13. First threaded hole; 2. Driven disc; 21. Mounting block; 22. Second threaded hole; 3. Driven bushing; 4. Transmission assembly; 41. Guide plate; 411. Limiting hole; 42. Clamping bolt; 43. Spring; 44. Steel ball; 5. Mounting hole; 6. Through hole; 7. Fixing bolt; 8. Cutting plane; 9. Fixing screw. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figure 1-5 As shown in the figure, this application discloses a coupling with a locking protection function, including a driving disk 1 for connecting to the drive shaft of a motor, a driven disk 2 disposed at the end of the driving disk 1 away from the motor, and a driven bushing 3 disposed on the driven disk 2 and fixed to a variable ceramic vacuum capacitor. The driven disk 2 is provided with a transmission component 4 for connecting to the driving disk 1 and for causing the driving disk 1 to rotate idling after the vacuum capacitance of the variable ceramic vacuum capacitor is adjusted to a set value.

[0027] The transmission component 4 enables the driven disk 2 and the driven bushing 3 to rotate synchronously with the driven disk 1 when the motor drives the driven disk 1 to rotate. This allows the variable ceramic vacuum capacitor to rotate, and the capacity of the vacuum capacitor can be adjusted (the adjustment principle is the same as the prior art, such as the Chinese utility model patent application with publication number CN219085824U, the specification of the prior art [0002, 0003, 0037-0056], which does not need to be described in detail in this application). After the vacuum capacitor capacity is adjusted to the set value, the transmission component 4 allows the driven disk 1 to idle, which helps to prevent the vacuum capacitor from being damaged.

[0028] The transmission assembly 4 includes a guide plate 41 detachably connected to the side of the driven disc 2 near the driving disc 1. Two symmetrically arranged mounting blocks 21 are fixed to the side of the driven disc 2 away from the driving disc 1. Two symmetrically arranged mounting holes 5 are provided on the side of the driven disc 2 near the driving disc 1, each extending into one of the mounting blocks 21. The transmission assembly 4 also includes a tightening bolt 42 (thread details not shown in this application) threaded through the side wall of the mounting block 21 away from the driving disc 1, located within the mounting hole 5 and engaging with the guide plate 42. The spring 43 is abutted against the end of the bolt 42 near the drive disc 1, and the steel ball 44 is fixed to the end of the spring 43 away from the bolt 42. The guide plate 41 is provided with a limiting hole 411 for the steel ball 44 to pass through and to prevent the steel ball 44 from falling off. The side wall of the drive disc 1 near the driven disc 2 is provided with a plurality of arc-shaped grooves 11 evenly distributed about the axis of the drive disc 1 and abutting against the side of the steel ball 44 away from the bolt 42. There are two springs 43 and two steel balls 44, which are respectively located in two mounting holes 5.

[0029] When the vacuum capacitor capacity is adjusted to the set value, if the motor continues to drive the drive plate 1 to rotate, the drive plate 1 will start to slip and spin freely because the end of the clamping bolt 42 on the driven plate 2 is connected to the spring 43 and the steel ball 44. The spring 43, the steel ball 44 and the arc groove 11 work together to prevent the vacuum capacitor from being damaged as the motor continues to rotate.

[0030] A guide shaft 12, coaxially arranged with the drive disc 1, is integrally formed on the side of the drive disc 1 near the driven disc 2. Both the guide plate 41 and the drive disc 1 have through holes 6 for the guide shaft 12 to pass through. A fixing bolt 7, with a clearance fit, is installed on the side of the guide plate 41 near the drive disc 1. The fixing bolt 7 is threaded to the side of the driven disc 2 near the drive disc 1. Four fixing bolts 7 are provided and evenly distributed about the axis of the driven disc 2. The fixing bolts 7 facilitate the detachable connection of the guide plate 41 for the assembly of the spring 43 and the steel ball 44.

[0031] The driving disc 1 has a first threaded hole 13 for threaded connection of a fastening screw, and the driven shaft sleeve 3 has a second threaded hole 22 for threaded connection of a fastening screw. This allows operators to use multiple fastening screws to fix the driving disc 1 to the motor's drive shaft (specifically, holes for fastening screws can be provided on the motor's drive shaft), and the driven shaft sleeve 3 to the rotating shaft of the variable ceramic vacuum capacitor (specifically, holes for fastening screws can be provided on the rotating shaft of the variable ceramic vacuum capacitor). This allows the variable ceramic vacuum capacitor to rotate during motor operation, thereby adjusting the vacuum capacitor's capacity.

[0032] Both sides of the driven bushing 3 are provided with cutting surfaces 8, which are located between the two mounting blocks 21 respectively. A fixing screw 9 is provided through the driven bushing 3 with clearance fit. The fixing screw 9 is threaded to the side of the driven disc 2 away from the driving disc 1. There are two fixing screws 9, which are symmetrically arranged about the axis of the driven bushing 3.

[0033] The working principle of a coupling with a locking protection function in this embodiment is as follows: the transmission component 4 enables the driven disk 2 and the driven bushing 3 to rotate synchronously with the driven disk 1 when the motor drives the driven disk 1 to rotate, thereby causing the variable ceramic vacuum capacitor to rotate and the capacity of the vacuum capacitor to be adjusted. After the capacity of the vacuum capacitor is adjusted to the set value, the transmission component 4 causes the driven disk 1 to idle, which helps to prevent the vacuum capacitor from being damaged.

[0034] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A coupling with a detent protection function, characterized by: The transmission assembly (4) includes a guide plate (41) detachably connected to the side of the driven disc (2) close to the driving disc (1), two symmetrically arranged mounting blocks (21) fixed to the side of the driven disc (2) away from the driving disc (1), two symmetrically arranged mounting holes (5) provided in the driven disc (2) and extending into the mounting blocks (21), a resisting bolt (42) threadedly connected to the side wall of the mounting blocks (21) away from the driving disc (1), a spring (43) provided in the mounting hole (5) and abutting against the end of the resisting bolt (42) close to the driving disc (1), and a steel ball (44) fixed to the end of the spring (43) away from the resisting bolt (42), wherein the guide plate (41) is provided with a limiting hole (411) through which the steel ball (44) passes and prevents the steel ball (44) from falling off, and the side wall of the driving disc (1) close to the driven disc (2) is provided with a plurality of arc-shaped grooves (11) uniformly distributed about the axis of the driving disc (1) and abutting against the side of the steel ball (44) away from the resisting bolt (42), and the spring (43) and the steel ball (44) are both provided with two and located in the two mounting holes (5), respectively.

2. The coupling with the function of the locking protection according to claim 1, characterized in that: The driving disc (1) is integrally formed with a guide shaft (12) coaxially arranged on the side of the driving disc (1) close to the driven disc (2), the guide plate (41) and the driving disc (1) are both provided with a through hole (6) through which the guide shaft (12) passes, the side of the guide plate (41) close to the driving disc (1) is provided with a fixing bolt (7) threadedly connected to the side of the driven disc (2) close to the driving disc (1) and gap-fitted with the guide plate (41), and the fixing bolt (7) is provided with four and uniformly distributed about the axis of the driven disc (2).

3. The coupling with the function of the locking protection according to claim 2, characterized in that: The driving disc (1) is provided with a first threaded hole (13) through which a fastening screw is threadedly connected, and the driven shaft sleeve (3) is provided with a second threaded hole (22) through which the fastening screw is threadedly connected.

4. The coupling with the function of the locking protection according to claim 3, characterized in that: The driven shaft sleeve (3) is provided with a cutting plane (8) on both sides, and the cutting planes (8) on both sides of the driven shaft sleeve (3) are located between the two mounting blocks (21), respectively.

5. The coupling with the function of the card position protection according to claim 4, characterized in that: The driven shaft sleeve (3) is provided with a fixing screw (9) gap-fitted with the driven shaft sleeve (3), the fixing screw (9) is threadedly connected to the side of the driven disc (2) away from the driving disc (1), and the fixing screw (9) is provided with two and symmetrically arranged about the axis of the driven shaft sleeve (3).

6. The coupling with the function of the locking protection according to claim 5, characterized in that: ​

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