Controllable pre-tightening pressure core group fastening equipment

Abstract

The utility model discloses controllable pre-tightening pressure core group fastening equipment, and relates to the technical field of lightning arrester core group production. The device comprises a connecting plate, a servo motor, a pressure sensor, a pressing frame and a Z-shaped plate, the servo motor is arranged in the center of the top of the connecting plate, a lead screw is fixed to the output end of the servo motor, a fixing frame is rotatably connected to the bottom end of the lead screw, the pressure sensor is fixed to the bottom of the fixing frame, and a fixing rod is fixed to the input end of the pressure sensor. A pressing block is fixed to the bottom end of the fixing rod, a pressing frame is arranged below the pressing block, a Z-shaped plate is fixed to one side of the lead screw on the top of the fixing frame, and a baffle is fixed to the corner, close to the upper portion, of the Z-shaped plate. Through the arrangement of the connecting plate, the servo motor, the pressure sensor, the pressing frame and the Z-shaped plate, the problems that the pre-tightening pressure of core assembly fastening equipment is not convenient enough to control, and after a core assembly is pressed and machined, the servo motor needs to be controlled, so that the working procedures are more, and the operation is tedious are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of arrester core group production, in particular to a core group fastening device with controllable pre-tightening pressure. Background Art

[0002] The arrester core pack is the core component of the arrester. It consists of multiple resistor plates and is used to limit overvoltage and protect electrical equipment from overvoltages caused by lightning strikes and switching operations. The design and manufacture of the arrester core pack is crucial to the performance of the arrester. In order to carry out production, the arrester core pack needs to be compressed and processed. The current process of the core pack tightening equipment requires a 110kV pre-tightening pressure of 800-1000N. The operation is performed by the compression equipment, but it still has the following disadvantages in actual use:

[0003] The core group fastening equipment is directly pressed to perform pre-tightening operations, which completely rely on personnel's experience. There is a risk that the pre-tightening force executed in the process may not meet the design process requirements. If the pre-tightening force is too large, there is a risk that the materials of the core group fixing components will fatigue beyond the design. If the pre-tightening force is too small, there is a risk that the core group connection will be loose and not reliable.

[0004] When working, after the core group fastening device completes the compaction production of the core group, it is necessary to start the servo motor to reverse and leave the structure of the pressed core group, and after the pressed structure reaches a suitable height, turn off the servo motor. There are many steps. Utility Model Content

[0005] The purpose of the utility model is to provide a core group fastening device with controllable pre-tightening pressure. By setting a connecting plate, a servo motor, a pressure sensor, a pressing frame and a Z-shaped plate, the utility model solves the problems that the pre-tightening pressure control of the core group fastening device is not convenient, and after the core group is pressed and processed, it is necessary to control the servo motor work process and the operation is complicated.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The utility model discloses a controllable pre-tightening pressure core group fastening device, comprising a connecting plate, a servo motor, a pressure sensor, a pressing frame and a Z-shaped plate, wherein a servo motor is arranged at the top center of the connecting plate, the output end of the servo motor is fixed with a screw rod, the screw rod is vertically threaded and connected in the connecting plate, the bottom end of the screw rod is rotatably connected to the fixing frame, the bottom of the fixing frame is fixed with a pressure sensor, the input end of the pressure sensor is fixed with a fixing rod, the bottom end of the fixing rod is fixed with a pressure block, a pressing frame is arranged below the pressure block, and a Z-shaped plate is fixed on one side of the screw rod at the top of the fixing frame, and a baffle is fixed on the Z-shaped plate near the upper corner. When working, the servo motor is supported thereon by the connecting plate, the screw rod is driven to rotate by the servo motor, and the pressure sensor is driven to rise and fall when the screw rod rotates, and the pressure on the pressure block is transmitted through the pressing frame, and the insertion rod is inserted into the connecting plate through the Z-shaped plate to prevent the pressure sensor from rotating with the rotation of the screw rod.

[0008] Furthermore, a fixing bracket is fixed to the bottom of the connecting plate on the side of the screw rod close to the Z-shaped plate, and a photoelectric switch is fixed through the lower part of the fixing bracket. The photoelectric switch corresponds to the position of the baffle, and the fixing bracket is arranged behind the baffle. A mounting bracket is fixed to the top of the connecting plate. The connecting plate is connected to the photoelectric switch through the fixing bracket. When the photoelectric switch is blocked, the servo motor is turned off.

[0009] Furthermore, movable rods are fixed at the four corners of the bottom of the servo motor outside the screw rod. The movable rods are inserted into the connecting plate. The servo motor is inserted into the connecting plate through the movable rods, so that the servo motor will not rotate with the screw rod during the lifting process.

[0010] Furthermore, a pressure display is fixed to one side of the pressure sensor, and the pressure display is electrically connected to the pressure sensor. The pressure sensor displays the pressure applied to the core group body through the pressure display.

[0011] Furthermore, a core group body is provided at the bottom end of the pressing frame, and limiting rods are inserted through the pressing frame outside the core group body in a circular array. The bottom ends of all the limiting rods are fixed to a chassis, and the bottom end of the core group body is provided at the top end of the chassis. The pressing frame limits the core group body through the limiting rods and the chassis.

[0012] Furthermore, a fixed plate is fixed at the lower edge of the side of the Z-shaped plate away from the screw rod, and an insertion rod is fixed on the top of the fixed plate. The insertion rod is inserted into the connecting plate, and the Z-shaped plate cooperates with the insertion rod on the fixed plate to prevent the pressure sensor from rotating with the rotation of the screw rod.

[0013] The utility model has the following beneficial effects:

[0014] The utility model solves the problem of inconvenient control of the pre-tightening pressure of the core group fastening device by arranging a connecting plate, a servo motor, a pressure sensor and a pressing frame. During operation, the servo motor drives the screw rod to rotate, drives the pressure sensor to descend, drives the fixing rod and the pressing block to be pressed onto the pressing frame, and after pressing onto the core group body, observes the pressure display instrument until the reading displayed on the pressure display instrument reaches -N, stops the servo motor, performs processing, and restarts the servo motor to drive the pressure sensor to rise. The pre-tightening pressure of the core group fastening device can be conveniently controlled within a reasonable range, and the operation is more convenient.

[0015] The utility model solves the problem that the core group fastening device needs to control the servo motor work process and the operation is complicated after the core group is pressed and processed by arranging a connecting plate, a servo motor, a pressing frame and a Z-shaped plate. When the core group body is pressed and processed, the servo motor is started to reverse. When the servo motor reverses, the lead screw is driven to rotate, and the servo motor, the pressure sensor and the Z-shaped plate are driven to rise until the baffle shields the photoelectric switch, and the servo motor is stopped to complete a working cycle. After the core group fastening device is pressed and processed, the servo motor can be directly started to reverse. The servo motor can stop working without manual control, and the operation is simpler. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 A three-dimensional diagram of the assembly structure of a controllable pre-tightening pressure core group fastening device;

[0018] Figure 2 It is a three-dimensional diagram of the connecting plate structure;

[0019] Figure 3 It is a three-dimensional diagram of the servo motor structure;

[0020] Figure 4 It is a three-dimensional diagram of the pressure sensor structure;

[0021] Figure 5 It is a three-dimensional diagram of the pressing frame structure;

[0022] Figure 6 It is a three-dimensional diagram of the Z-shaped plate structure.

[0023] Reference numerals:

[0024] 1. Connecting plate; 101. Mounting frame; 102. Fixing frame; 103. Photoelectric switch; 2. Servo motor; 201. Movable rod; 202. Screw rod; 203. Fixing frame; 3. Pressure sensor; 301. Pressure display; 302. Fixing rod; 303. Pressing block; 4. Pressing frame; 401. Limiting rod; 402. Chassis; 403. Core group body; 5. Z-shaped plate; 501. Baffle; 502. Fixing plate; 503. Inserting rod. DETAILED DESCRIPTION

[0025] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Specific embodiment 1

[0026] See also Figure 1-3 The utility model is a controllable pre-tightening pressure core group fastening device, including a connecting plate 1, a servo motor 2, a pressure sensor 3, a pressing frame 4 and a Z-shaped plate 5. A servo motor 2 is set at the top center of the connecting plate 1. When the connecting plate 1 is working, the servo motor 2 is supported on it, and the servo motor 2 drives the screw rod 202 to rotate. The output end of the servo motor 2 is fixed with a screw rod 202, and the screw rod 202 is vertically threaded and connected to the connecting plate 1. The bottom end of the screw rod 202 is rotatably connected to the fixed frame 203. When the screw rod 202 is driven to rotate by the servo motor 2, the servo motor 2 is pushed up, and the fixed frame 203 movable frame is driven up. A pressure sensor 3 is fixed to the bottom of the fixed frame 203, and a fixed rod 302 is fixed to the input end of the pressure sensor 3. A pressure block 303 is fixed to the bottom end of the rod 302. When the pressure sensor 3 descends, the fixed rod 302 and the pressure block 303 are driven to descend. When the pressure block 303 descends and presses on the pressing frame 4, the core group body 403 below the pressing frame 4 is pressed. A pressing frame 4 is provided below the pressure block 303. The position of the top of the core group body 403 is limited by the pressing frame 4. A Z-shaped plate 5 is fixed to one side of the screw rod 202 at the top of the fixed frame 203. The position of the fixed frame 203 is limited by the Z-shaped plate 5, so that the fixed frame 203 does not rotate with the rotation of the screw rod 202. A baffle 501 is fixed to the corner near the upper part of the Z-shaped plate 5. When the baffle 501 rises with the rise of the Z-shaped plate 5, the photoelectric switch 103 is shielded, and the servo motor 2 is turned off.

[0027] Specifically, a fixing bracket 102 is fixed to the bottom of the connecting plate 1 on the side of the screw rod 202 close to the Z-shaped plate 5, and a photoelectric switch 103 is fixed through the lower part of the fixing bracket 102. The photoelectric switch 103 corresponds to the position of the baffle 501. The fixing bracket 102 is set behind the baffle 501. A mounting bracket 101 is fixed to the top of the connecting plate 1. The connecting plate 1 is installed on an external bracket through the mounting bracket 101. The photoelectric switch 103 is fixed to the bottom of the connecting plate 1 through the fixing bracket 102. After the photoelectric switch 103 is blocked by the baffle 501, the servo motor 2 is turned off.

[0028] Furthermore, movable rods 201 are fixed at the four corners of the bottom of the servo motor 2 outside the screw rod 202. The movable rods 201 are inserted into the connecting plate 1. The servo motor 2 is inserted into the connecting plate 1 through the movable rods 201, so that when working, the servo motor 2 will not rotate during the process of rising and falling above the connecting plate 1.

[0029] The operation process of this embodiment is as follows: when working, the servo motor 2 is started, and the servo motor 2 drives the screw rod 202 to rotate, which is connected to the connecting plate 1 through the screw rod 202, driving the fixed frame 203 to descend, causing the pressure sensor 3 to descend, and the pressure block 303 to be pressed onto the pressing frame 4. After the core group main body 403 is compacted and processed, the servo motor 2 is started to reverse. When the servo motor 2 reverses, it drives the screw rod 202 to rotate, driving the servo motor 2, the pressure sensor 3 and the Z-shaped plate 5 to rise until the baffle 501 covers the photoelectric switch 103, and then the servo motor 2 is stopped to complete a working cycle. Specific embodiment 2

[0030] See also Figure 1 、 4 , 5, 6, on the basis of the specific embodiment 1, a pressure display 301 is fixed to one side of the pressure sensor 3, and the pressure display 301 is electrically connected to the pressure sensor 3. When the pressure block 303 at the bottom end of the fixing rod 302 is pressed onto the pressing frame 4, the core group body 403 is pressed, and the pressure on the pressure block 303 is detected by the pressure sensor 3, and the pressure on the core group body 403 is displayed by the pressure display 301.

[0031] Specifically, a core group body 403 is provided at the bottom end of the pressing frame 4, and a limiting rod 401 is inserted through the pressing frame 4 outside the core group body 403 in a circular array. The bottom ends of all the limiting rods 401 are fixed to the chassis 402, and the bottom end of the core group body 403 is set at the top end of the chassis 402. When working, the pressing frame 4 is pushed upward to remove the pressing frame 4 from the three limiting rods 401, and then the processed core group body 403 is moved away from between the three limiting rods 401, and then the unprocessed core group body 403 is placed between the three limiting rods 401 and supported by the chassis 402. After completion, the pressing frame 4 is aligned with the three limiting rods 401, so that the three limiting rods 401 pass through the pressing frame 4, and the pressing frame 4 is pressed to the top end of the core group body 403, ready to be pressed.

[0032] Furthermore, a fixed plate 502 is fixed at the lower edge of one side of the Z-shaped plate 5 away from the screw rod 202, and an insertion rod 503 is fixed to the top of the fixed plate 502. The insertion rod 503 is inserted through the connecting plate 1. The Z-shaped plate 5 is connected to the insertion rod 503 through the fixed plate 502 and is inserted into the connecting plate 1 through the insertion rod 503. When the servo motor 2 drives the screw rod 202 to rotate, the pressure sensor 3 will not rotate with the rotation of the screw rod 202.

[0033] The operation process of this embodiment is as follows: when the screw rod 202 is driven to rotate by the servo motor 2, the screw rod 202 drives the fixed frame 203 to rise when it rotates, and the insertion rod 503 on the fixed disk 502 connected by the Z-shaped plate 5 is inserted into the connecting plate 1, so that the pressure sensor 3 will not rotate with the rotation of the screw rod 202 during the lifting process. When working, first start the servo motor 2 to drive the pressure sensor 3 to rise, then push the pressing frame 4 upward, remove the pressing frame 4 from the three limit rods 401, then move the processed core group body 403 away from between the three limit rods 401, and then put the unprocessed core group body 403 on the three limit rods. The pressure sensor 3 is pressed down, and the fixed rod 302 and the pressure block 303 are pressed onto the pressure frame 4. After pressing onto the core group body 403, the pressure display 301 is observed until the reading displayed on the pressure display 301 is 80-100kG, the servo motor 2 is stopped, and after processing, the servo motor 2 is restarted to drive the pressure sensor 3 to rise.

[0034] Throughout this specification, references to terms such as "one embodiment," "example," or "specific example" indicate that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0035] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments do not describe all details in detail, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A controllable pre-tightening pressure core group fastening device, comprising a connecting plate (1), a servo motor (2), a pressure sensor (3), a pressing frame (4) and a Z-shaped plate (5), characterized in that: A servo motor (2) is provided at the center of the top of the connecting plate (1), a screw rod (202) is fixed to the output end of the servo motor (2), the screw rod (202) is vertically threaded and connected to the connecting plate (1), the bottom end of the screw rod (202) is rotatably connected to a fixed frame (203), a pressure sensor (3) is fixed to the bottom of the fixed frame (203), a fixing rod (302) is fixed to the input end of the pressure sensor (3), a pressure block (303) is fixed to the bottom end of the fixing rod (302), a pressing frame (4) is provided below the pressure block (303), a Z-shaped plate (5) is fixed to one side of the screw rod (202) at the top of the fixing frame (203), and a baffle (501) is fixed to the corner of the Z-shaped plate (5) near the top.

2. The controllable pre-tightening pressure core group fastening device according to claim 1, characterized in that: A fixing frame (102) is fixed to the bottom of the connecting plate (1) on the side of the screw rod (202) close to the Z-shaped plate (5), and a photoelectric switch (103) is fixed through the lower part of the fixing frame (102). The photoelectric switch (103) corresponds to the position of the baffle (501). The fixing frame (102) is arranged behind the baffle (501), and a mounting frame (101) is fixed to the top of the connecting plate (1).

3. The controllable pre-tightening pressure core group fastening device according to claim 1, characterized in that: Movable rods (201) are fixed at the four corners of the bottom of the servo motor (2) outside the screw rod (202), and the movable rods (201) are inserted through the connecting plate (1).

4. The controllable pre-tightening pressure core group fastening device according to claim 1, characterized in that: A pressure display instrument (301) is fixed to one side of the pressure sensor (3), and the pressure display instrument (301) is electrically connected to the pressure sensor (3).

5. The controllable pre-tightening pressure core group fastening device according to claim 1, characterized in that: A core group body (403) is provided at the bottom end of the pressing frame (4), and limiting rods (401) are inserted in a circular array in the pressing frame (4) outside the core group body (403), and the bottom ends of all the limiting rods (401) are fixed to a chassis (402) in common, and the bottom end of the core group body (403) is provided at the top end of the chassis (402).

6. The controllable pre-tightening pressure core group fastening device according to claim 1, characterized in that: A fixed disk (502) is fixed at the lower edge of a side of the Z-shaped plate (5) away from the screw rod (202), and an insertion rod (503) is fixed at the top of the fixed disk (502). The insertion rod (503) is inserted through the connecting plate (1).

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