Automatic control device for locking nut position

Abstract

A kind of locking nut position automatic control device for locking the position of movable end of electrolytic cell, including locking nut, the locking nut is connected with the drive device that it moves back and forth on screw rod, the drive device includes driving gear, the driving gear is engaged with locking nut, the driving gear can be synchronously rotated with spline shaft and is installed on spline shaft and moves along spline shaft axial direction, the spline shaft is connected with servo motor that it rotates.The utility model discloses simple structure, promotes the automation level and security of electrolytic cell locking nut, and only locking nut and driving gear axial movement, more easily control.

Description

Technical Field

[0001] This utility model belongs to the technical field of chlor-alkali industrial equipment, specifically relating to an automatic control device for the position of a locking nut to achieve locking of an electrolytic cell. Background Technology

[0002] An ion-exchange membrane electrolyzer is a highly efficient and compact electrolysis device widely used in the chlor-alkali industry, water electrolysis for hydrogen production, and metal electrowinning. It consists of dozens or even hundreds of electrolysis units connected in series and stacked together, with all units sealed and compressed using a hydraulic press.

[0003] The existing locking device for electrolytic cells is a traditional manual operation method, which uses a screw and nut structure for manual adjustment. The locking screw is partially threaded and fixed to the movable end, while the guide sleeve flange end face is fixed to the rear fixed end. The tail of the locking rod moves axially back and forth within the guide sleeve. When the process conditions of the electrolytic cell change, the nut needs to be loosened or tightened. Manual adjustment inevitably leads to some delays and deviations, and its timeliness and accuracy are not ideal.

[0004] Patent CN221028703U discloses an automatic locking device for a squeeze-type ion-exchange membrane electrolyzer, including a mounting plate, a slide, a drive unit, a driving gear, a driven gear, and a clutch control mechanism. The mounting plate is connected to a screw via a sliding fit. The slide is mounted on the mounting plate via a sliding fit. The drive unit is mounted on the slide and is used to drive the driving gear to rotate. The driven gear meshes with the driving gear and is also fixedly connected to a locking nut. The driven gear or the locking nut is connected to the mounting plate via a rotatable connection. The clutch control mechanism is mounted on the mounting plate and is used to control the movement of the slide relative to the mounting plate to achieve the meshing and disengagement of the driving gear and the driven gear. In automatic control, this structure requires the drive unit to move back and forth simultaneously, resulting in a complex structure and low efficiency. Summary of the Invention

[0005] To overcome the shortcomings of existing technologies, this utility model proposes an automatic control device for the position of locking nuts, which has a simple structure and improves the automation level and safety of locking nuts in electrolytic cells.

[0006] The technical solution adopted in this utility model is: An automatic control device for locking the position of a locking nut is provided for locking the position of the movable end of an electrolytic cell. The device includes a locking nut connected to a drive device that drives the locking nut to move back and forth on a screw. The drive device includes a drive gear that meshes with the locking nut. The drive gear is mounted on the spline shaft and can rotate synchronously with it and move axially along the spline shaft. The spline shaft is connected to a servo motor that drives its rotation.

[0007] Furthermore, a planetary reducer is installed between the servo motor and the splined shaft.

[0008] Furthermore, the servo motor is fixed on the mounting plate, and the mounting plate is fixed to the side of the fixed end of the electrolytic cell.

[0009] Furthermore, the spline shaft is rotatably mounted on a support bracket, and the support bracket is fixed to a mounting plate.

[0010] Furthermore, a large gear is fixed on the locking nut, and the drive gear meshes with the large gear.

[0011] Furthermore, the inner hole of the drive gear is a spline hole, which allows the drive gear to rotate synchronously with the spline shaft and move axially along the spline shaft.

[0012] Furthermore, the drive gear is clamped and mounted on the spline shaft by pressure plates on both sides.

[0013] Furthermore, a sliding shim is provided between the drive gear and the pressure plate to reduce frictional resistance and increase motor efficiency.

[0014] Furthermore, it also includes a displacement sensor, which is fixed on the support bracket, and its telescopic rod rests on the pressure plate and is driven to extend and retract by the pressure plate.

[0015] Furthermore, both the displacement sensor and the servo motor are connected to the controller.

[0016] The advantages of this invention are: simple structure, improved automation and safety of electrolytic cell locking nuts. Attached Figure Description

[0017] Figure 1 This is a top view of the structure of the ion membrane electrolyzer of this utility model.

[0018] Figure 2 This is a schematic diagram of the main structure of this utility model.

[0019] Figure 3 This is a top view of the structure of this utility model. Detailed Implementation

[0020] The present invention will be further described below with reference to specific embodiments, but the present invention is not limited to these specific embodiments. Those skilled in the art should recognize that the present invention covers all alternatives, improvements and equivalents that may be included within the scope of the claims.

[0021] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] See Figure 1 The ion-exchange membrane electrolyzer includes a movable end 1 and a fixed end 3. The front end of the screw 2 is fixedly connected to the movable end 1, and its rear end is inserted into the guide sleeve 4. The guide sleeve 4 is fixed to the fixed end 3. The movable end 1 is driven to move by the oil cylinder 6. A locking nut 5 for locking position is installed on the screw 2.

[0025] See Figure 2 , Figure 3This embodiment provides an automatic control device for locking the position of a locking nut, used to lock the position of the movable end 1 of an electrolytic cell. It includes a locking nut 5, which is connected to a drive device that drives it to move back and forth on a screw 2. The drive device includes a drive gear 15, which meshes with the locking nut 5. The drive gear 15 is mounted on the spline shaft 7 and can rotate synchronously with the spline shaft 7 and move axially along the spline shaft 7. The spline shaft 7 is connected to a servo motor 11 that drives it to rotate.

[0026] In this embodiment, a planetary reducer 12 is installed between the servo motor 11 and the splined shaft 7. The servo motor 11 and the planetary reducer 12 are fixed on a mounting plate 9, which is fixed to the side of the electrolytic cell fixing end 3. The splined shaft 7 is rotatably mounted on a support bracket 13, which is fixed to the mounting plate 9. The keyway hole of the splined shaft 7 is inserted into the planetary reducer 12, and the planetary reducer 12 is screwed to the servo motor 11.

[0027] In this embodiment, a large gear 10 is fixed to the locking nut 5, and the drive gear 15 meshes with the large gear 10. The inner hole of the drive gear 15 is a spline hole, which allows the drive gear 15 to rotate synchronously with the spline shaft 7 and move axially along the spline shaft 7. The drive gear 15 is clamped and fitted onto the spline shaft 7 by pressure plates 16 on both sides. A sliding washer 14 is provided between the drive gear 15 and the pressure plate 16 to reduce frictional resistance and increase motor efficiency.

[0028] This embodiment also includes a displacement sensor 8, which is fixed on the support bracket 13, and its telescopic rod rests on the pressure plate 16 and is driven to extend and retract by the pressure plate 16. The displacement sensor 8 and the servo motor 11 are both connected to the controller.

[0029] When using this invention, pressing the start button triggers the displacement sensor 8 to send a controller signal based on the current position. The servo motor 11 then rotates forward or backward to the target position according to the signal. As the servo motor 11 rotates, the drive gear 15 rotates synchronously, simultaneously driving the large gear 10 to rotate. The large gear 10 is mounted on the locking nut 5, which rotates and moves back and forth. Simultaneously, it drives the large gear 10 to move back and forth. Clamped by the pressure plates 16 on both sides of the drive gear 15, the drive gear 15 slides back and forth on the splined shaft 7, following the large gear 10. The sliding washers 14 on both sides reduce frictional resistance and increase motor efficiency. When the displacement sensor 8's telescopic rod reaches the predetermined position, it sends a stop signal. At this point, the servo motor 11 stops rotating and engages the brake, completing the automatic control of the locking nut 5.

[0030] This invention has a simple structure, improves the automation level and safety of the electrolytic cell locking nut, and only the locking nut and the drive gear move axially, making it easier to control.

Claims

1. An automatic control device for locking the position of a locking nut, used to lock the position of the movable end of an electrolytic cell, comprising a locking nut, the locking nut being connected to a drive device for driving it to move back and forth on a screw, the drive device comprising a drive gear meshing with the locking nut, characterized in that: The drive gear is mounted on the spline shaft and can rotate synchronously with the spline shaft and move axially along the spline shaft. The spline shaft is connected to a servo motor that drives its rotation.

2. The automatic control device for the position of a locking nut according to claim 1, characterized in that: A planetary reducer is installed between the servo motor and the splined shaft.

3. The automatic control device for the position of a locking nut according to claim 2, characterized in that: The servo motor is fixed to the mounting plate, and the mounting plate is fixed to the side of the fixed end of the electrolytic cell.

4. The automatic control device for the position of a locking nut according to claim 3, characterized in that: The splined shaft is rotatably mounted on a support bracket, which is fixed to a mounting plate.

5. The automatic control device for the position of a locking nut according to claim 1, characterized in that: A large gear is fixed on the locking nut, and the drive gear meshes with the large gear.

6. The automatic control device for the position of a locking nut according to claim 1, characterized in that: The inner hole of the drive gear is a spline hole, which allows the drive gear to rotate synchronously with the spline shaft and move axially along the spline shaft.

7. The automatic control device for the position of a locking nut according to claim 6, characterized in that: The drive gear is clamped and mounted on the splined shaft by pressure plates on both sides.

8. The automatic control device for the position of a locking nut according to claim 7, characterized in that: A sliding washer is provided between the drive gear and the pressure plate.

9. The automatic control device for the position of a locking nut according to claim 1, characterized in that: It also includes a displacement sensor, which is fixed on a support bracket and its telescopic rod rests on a pressure plate and is driven to extend and retract by the pressure plate.

10. The automatic control device for the position of a locking nut according to claim 9, characterized in that: The displacement sensor and servo motor are both connected to the controller.

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