Ball valve maintenance workbench and ball valve maintenance device

Abstract

The utility model discloses a ball valve maintenance workbench and a ball valve maintenance device, and relates to the technical field of valve maintenance. The maintenance platform comprises a maintenance platform body, moving columns and a disassembling assembly and further comprises a first hydraulic cylinder fixedly connected to the moving column located on the right side, a piston shaft of the first hydraulic cylinder is fixedly connected with a moving frame, one side of the moving frame is fixedly connected with a second driving motor, and an output shaft of the second driving motor is fixedly connected with a rotating shaft. The first hydraulic cylinder and the second driving motor drive the rotating frame to move, the rotating frame drives a valve seat of a ball valve to move, and the problems that in the prior art, two valve seats of the ball valve are inconvenient to disassemble, and the valve seat of the ball valve is inconvenient to disassemble are solved. And meanwhile, external force is applied to the ball body in the ball valve through the ejector rod, and the problem that in the prior art, the ball body in the ball valve is inconvenient to disassemble is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of valve maintenance, in particular to a ball valve maintenance workbench and a ball valve maintenance device. Background Art

[0002] A ball valve is one of the most common valves. It refers to a valve in which the ball is driven by a valve stem and rotates around the axis of the ball valve. Ball valves can be divided into pneumatic ball valves, electric ball valves and manual ball valves according to the driving method. The structure of a ball valve mainly includes a ball, a valve seat, a valve stem, a sealing ring and a driving mechanism. It has the advantages of simple structure, good sealing and long service life. It is widely used in petrochemical, chemical, electric power, water treatment and other industries. During the long-term use of the ball valve, it is necessary to perform regular maintenance on it. In order to facilitate the maintenance of the ball valve, a ball valve maintenance device is generally used to disassemble the ball valve.

[0003] The existing document with publication number CN220516713U discloses a valve body separation device for ball valve maintenance, including a workbench on which a separation seat for separating the valve body is movably mounted;

[0004] However, it still has the following disadvantages in actual use:

[0005] 1. The valve body separation device for ball valve maintenance mentioned above, its clamping mechanism includes a clamping plate and a bidirectional screw rod, the clamping plate is driven to move toward or away from each other by the rotation of the bidirectional screw rod, and the valve body is clamped by the clamping plate, but during use, its valve seat is generally composed of a left valve seat and a right valve seat, and the left valve seat and the right valve seat are connected by screw thread engagement, and the valve body separation device for ball valve maintenance mentioned above cannot disassemble the valve seat, which makes it inconvenient to take and put the ball inside, and it is inconvenient to use;

[0006] 2. The valve body separation device for ball valve maintenance mentioned above has a separation seat on its workbench movably connected through a separation drive mechanism, and a clamping mechanism is provided on the separation seat. The valve body is fixed by the clamping mechanism, and the separation seat is driven to move by the separation drive mechanism, thereby realizing separation of the valve body. However, during use, it is impossible to take out the ball inside the valve body, which is inconvenient to repair or replace the ball inside the valve body.

[0007] To this end, we provide a ball valve maintenance workbench and a ball valve maintenance device to solve the above problems. Utility Model Content

[0008] The purpose of the utility model is to provide a ball valve maintenance workbench and a ball valve maintenance device, which drive a rotating frame to move through a first hydraulic cylinder and a second drive motor, and drive a valve seat of the ball valve to move through the rotating frame, thereby solving the problem that it is inconvenient to split the two valve seats of the ball valve. At the same time, an external force is applied to the ball inside the ball valve through a push rod, thereby solving the problem that it is inconvenient to disassemble the ball inside the ball valve.

[0009] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0010] The utility model discloses a ball valve maintenance workbench, comprising a maintenance platform; a moving column, which is movably connected to two sides of the top of the maintenance platform; and a disassembly component, comprising a first hydraulic cylinder fixedly connected to the moving column located on the right side, a piston shaft of the first hydraulic cylinder fixedly connected to a moving frame, one side of the moving frame fixedly connected to a second drive motor, an output shaft of the second drive motor fixedly connected to a rotating shaft, an end of the rotating shaft away from the second drive motor movably passes through the moving column and is fixedly connected to a rotating frame, the rotating frame is located between adjacent moving columns, and a first clamping rod is fixedly connected to the upper and lower sides of a side of the rotating frame away from the rotating shaft.

[0011] The utility model is further configured such that first sliding grooves are opened on both sides of the top of the maintenance platform, a first screw rod is rotatably connected inside the first sliding groove, one end of the first screw rod rotates through an inner wall of one side of the first sliding groove and is sleeved with a first synchronous wheel, a first sliding block is threadedly sleeved on the first screw rod, and the bottom end of the movable column is fixedly connected to the top of the first sliding block.

[0012] The utility model is further configured such that a dual-axis motor is fixedly connected to the bottom center of the maintenance platform via a motor frame, bearing seats are fixedly connected to both sides of the bottom of the maintenance platform, output shafts of the dual-axis motors are fixedly connected to drive rods, one end of the drive rod away from the dual-axis motor rotates through the bearing seat and is sleeved with a second synchronous wheel, and the second synchronous wheel is transmission-connected to the first synchronous wheel via a first V-belt.

[0013] The utility model is further configured such that a placement component is also provided at the top rear end of the maintenance platform, the placement component includes mounting columns respectively fixedly connected to both sides of the top rear end of the maintenance platform, the inside of the mounting columns are rotatably connected with a second screw rod, the second screw rod is threadedly sleeved with a second slider, a fixing rod is welded on the front end surface of the second slider, a placement plate is welded on the front end of the fixing rod, a second slide groove is opened at the center position of the surface of the placement plate, a bidirectional screw rod is rotatably connected inside the second slide groove, the two ends of the bidirectional screw rod respectively rotate through the inner walls of both sides of the second slide groove and are fixedly connected with handles, a third slider is threadedly sleeved on both sides of the bidirectional screw rod, and a pad is welded on the top of the third slider.

[0014] The utility model is further configured such that the top end of the second screw rod rotates through the top end of the mounting column and is sleeved with a third synchronous wheel, a fixing plate is fixedly connected between adjacent mounting columns, a first drive motor is fixedly connected to the center position of the lower surface of the fixing plate, a fourth synchronous wheel is sleeved on the output shaft of the first drive motor, and the third synchronous wheel is transmission-connected to the fourth synchronous wheel via a second V-belt.

[0015] The utility model is further configured such that a third sliding groove is provided on the vertical support arms of the rotating frame, a plurality of threaded holes are provided at equal intervals on the outer wall of one side of the rotating frame close to the rotating shaft, mounting blocks are movably connected to the upper and lower parts of the interior of the rotating frame, one end of the first clamping rod is fixedly connected to the outer wall of one side of the mounting block, and a fastening nut is threadedly sleeved on the other end of the first clamping rod.

[0016] The utility model is further configured such that a protrusion is movably connected inside the third slide groove, and fastening screws are threaded through the end faces of the protrusions. One ends of the plurality of fastening screws are respectively threadedly connected to the front and rear end faces of the mounting block, and a limiting plate is welded on the outer wall on the other side of the mounting block, a positioning bolt is threaded through the limiting plate, and one end of the positioning bolt is threadedly connected to the inside of the threaded hole.

[0017] In view of the problem that it is inconvenient to take out the ball inside the ball valve on a ball valve maintenance workbench, a ball valve maintenance device is proposed.

[0018] The ball valve maintenance device also includes a material taking assembly, including a sleeve rod passing through the outer wall of the movable column located on the left side, one end of the sleeve rod is fixedly connected to a fixed frame, and the fixed frame is fixedly connected to a second clamping rod on the upper and lower sides of the side away from the sleeve rod, and a push rod is movably passed through the interior of the sleeve rod, one end of the push rod movably passes through the fixed frame and is bonded with a rubber pad, and the other end of the push rod is fixedly connected to a mounting plate.

[0019] The utility model is further configured that a return spring is sleeved on the outer side of the push rod, and two ends of the return spring are respectively fixedly connected to the facing surfaces of the moving column and the mounting plate.

[0020] The utility model is further configured such that a second hydraulic cylinder is fixedly connected to the lower side of an outer wall of one side of the moving column, a piston shaft of the second hydraulic cylinder is fixedly connected to a connecting plate, and an upper end of the connecting plate is fixedly connected to an outer wall of one side of the mounting plate away from the top rod.

[0021] The utility model has the following beneficial effects:

[0022] 1. The utility model starts the first hydraulic cylinder and the second drive motor, the piston shaft of the first hydraulic cylinder drives the movable frame to move horizontally, and the movable frame drives the second drive motor and the rotating frame to move synchronously in the horizontal direction, and at the same time, the output shaft of the second drive motor drives the rotating frame to rotate through the rotating shaft, and drives one of the valve seats of the ball valve to rotate through the rotating frame, thereby realizing the disassembly of the two valve seats of the ball valve that are screwed together, facilitating the disassembly of the ball valve, and facilitating the maintenance of the ball valve.

[0023] 2. The utility model fixes the fixing frame and the other valve seat of the ball valve by the second clamping rod, and starts the second hydraulic cylinder. The piston shaft of the second hydraulic cylinder drives the connecting plate to perform linear reciprocating motion in the lateral direction, and the connecting plate drives the push rod to perform linear reciprocating motion in the lateral direction through the mounting plate. The push rod applies an external force to the ball inside the valve seat, so that the ball is separated from the inside of the valve seat, which is convenient for disassembly of the ball inside the ball valve and maintenance work on it.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 The utility model is a schematic diagram of the overall structure of a ball valve maintenance workbench and a ball valve maintenance device.

[0026] Figure 2 It is a structural schematic diagram of the movable column of the utility model.

[0027] Figure 3 It is a structural schematic diagram of the placement components of the utility model.

[0028] Figure 4 It is a structural schematic diagram of the installation column of the utility model.

[0029] Figure 5 It is a structural schematic diagram of the placement plate of the utility model.

[0030] Figure 6 It is a structural schematic diagram of the cushion block of the utility model.

[0031] Figure 7 It is a structural schematic diagram of the disassembled components of the utility model.

[0032] Figure 8 It is a structural schematic diagram of the rotating frame of the utility model.

[0033] Fig. 9 It is a structural schematic diagram of the first clamping rod of the utility model.

[0034] Fig.10 It is a structural schematic diagram of the material taking component of the utility model.

[0035] Fig.11 It is a schematic diagram of the installation between the sleeve rod and the fixed frame of the utility model.

[0036] Fig.12 It is a structural schematic diagram of the top rod of the utility model.

[0037] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0038] 1-maintenance platform, 101-first slide, 2-moving column, 201-first screw rod, 201a-first synchronous wheel, 202-first slider, 203-double-axis motor, 203a-motor frame, 204-bearing seat, 205-driving rod, 205a-second synchronous wheel, 205b-first V-belt, 3-placing assembly, 301-mounting column, 301a-second screw rod, 301b-third synchronous wheel, 301c-fixing plate, 301d-first driving motor, 301e-fourth synchronous wheel, 301f-second V-belt, 302-placing plate, 302a-second slider, 302b-fixing rod, 302c-second slide, 303-pad, 303a-bidirectional screw rod, 3 03b-the third slider, 303c-handle, 4-split assembly, 401-the first hydraulic cylinder, 402-moving frame, 403-the second driving motor, 404-rotating shaft, 405-rotating frame, 405a-the third slide groove, 405b-threaded hole, 406-the first clamping rod, 406a-mounting block, 406b-fastening nut, 406c-bump, 406c-1-fastening screw, 406d-limiting plate, 406e-positioning bolt, 5-material taking assembly, 501-sleeve rod, 502-fixed frame, 503-the second clamping rod, 504-the push rod, 504a-rubber pad, 504b-mounting plate, 504c-reset spring, 505-the second hydraulic cylinder, 506-connecting plate. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] Example 1

[0041] Reference Figure 1 , Figure 2 and Figure 7, which is the first embodiment of the utility model, provides a ball valve maintenance workbench, including a maintenance platform 1, movable columns 2 movably connected to both sides of the top of the maintenance platform 1, and a disassembly component 4. The first hydraulic cylinder 401 and the second drive motor 403 in the disassembly component 4 drive the rotating frame 405 to move, and the rotating frame 405 is connected to a valve seat of the ball valve through the first clamping rod 406, which solves the existing problem of inconvenience in disassembling the valve seat.

[0042] Specifically, the split component 4 includes a first hydraulic cylinder 401 fixedly connected to the mobile column 2 located on the right side, the piston shaft of the first hydraulic cylinder 401 is fixedly connected to the mobile frame 402, the first hydraulic cylinder 401 is externally connected to the hydraulic station, and the mobile frame 402 is driven to move by the setting of the first hydraulic cylinder 401, one side of the mobile frame 402 is fixedly connected to the second drive motor 403, the setting of the mobile frame 402 is used to drive the second drive motor 403 and the rotating frame 405 to move horizontally, and the output shaft of the second drive motor 403 is fixedly connected to the rotating shaft 404, and the second drive motor 403 is used to drive the rotating shaft 4 04 rotates, one end of the rotating shaft 404 away from the second driving motor 403 movably passes through the moving column 2 and is fixedly connected with a rotating frame 405, the rotating shaft 404 is configured to drive the rotating frame 405 to rotate, the rotating frame 405 is located between adjacent moving columns 2, the rotating frame 405 is H-shaped, and the rotating frame 405 is configured to drive one of the valve seats of the ball valve to move, thereby separating the two valve seats of the ball valve, and the upper and lower parts of the side of the rotating frame 405 away from the rotating shaft 404 are fixedly connected with a first clamping rod 406, and the first clamping rod 406 is configured to connect the rotating frame 405 and the valve seat of the ball valve.

[0043] Furthermore, first slide grooves 101 are provided on both sides of the top of the maintenance platform 1, and a first screw rod 201 is rotatably connected inside the first slide groove 101. One end of the first screw rod 201 rotates through an inner wall of one side of the first slide groove 101 and is sleeved with a first synchronous wheel 201a. A first slider 202 is threadedly sleeved on the first screw rod 201, and the bottom end of the movable column 2 is fixedly connected to the top of the first slider 202.

[0044] Furthermore, a dual-axis motor 203 is fixedly connected to the bottom center of the maintenance platform 1 through a motor frame 203a, and bearing seats 204 are fixedly connected to both sides of the bottom of the maintenance platform 1. The output shafts of the dual-axis motor 203 are fixedly connected to a driving rod 205, and one end of the driving rod 205 away from the dual-axis motor 203 rotates through the bearing seat 204 and is sleeved with a second synchronous wheel 205a, and the second synchronous wheel 205a is transmission-connected to the first synchronous wheel 201a through a first V-belt 205b.

[0045] Operation process: start the first hydraulic cylinder 401 and the second drive motor 403, the piston shaft of the first hydraulic cylinder 401 drives the movable frame 402 to move horizontally, and the movable frame 402 drives the second drive motor 403 and the rotating frame 405 to move horizontally synchronously, and at the same time, the output shaft of the second drive motor 403 drives the rotating frame 405 to rotate through the rotating shaft 404, and drives one of the valve seats of the ball valve to rotate through the rotating frame 405, thereby realizing the separation of the two valve seats of the ball valve that are screwed together.

[0046] Example 2

[0047] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , which is the second implementation of the utility model. This embodiment is different from the first embodiment in that it is convenient to place ball valves of different lengths and solves the problem that the existing ball valve maintenance workbench is not convenient for repairing ball valves of different sizes.

[0048] Specifically, a placement component 3 is also provided at the top rear end of the maintenance platform 1, and the placement component 3 includes mounting columns 301 respectively fixedly connected to both sides of the top rear end of the maintenance platform 1, and a second screw rod 301a is rotatably connected inside the mounting columns 301, and a second slider 302a is threadedly sleeved on the second screw rod 301a, and a fixing rod 302b is welded on the front end surface of the second slider 302a, and a placement plate 302 is welded on the front end of the fixing rod 302b, and a second slide groove 302c is opened at the center position of the surface of the placement plate 302, and a bidirectional screw rod 303a is rotatably connected inside the second slide groove 302c, and both ends of the bidirectional screw rod 303a are respectively rotated to penetrate the inner walls of both sides of the second slide groove 302c and are fixedly connected with handles 303c, and a third slider 303b is threadedly sleeved on both sides of the bidirectional screw rod 303a, and a pad 303 is welded on the top of the third slider 303b.

[0049] Furthermore, the top end of the second screw rod 301a rotates through the top end of the mounting column 301 and is sleeved with a third synchronous wheel 301b, and adjacent mounting columns 301 are fixedly connected with fixed plates 301c, and the center position of the lower surface of the fixed plate 301c is fixedly connected with a first drive motor 301d, and the output shaft of the first drive motor 301d is sleeved with a fourth synchronous wheel 301e, and the third synchronous wheel 301b is transmission-connected to the fourth synchronous wheel 301e through a second V-belt 301f.

[0050] The rest of the structure is the same as that of Example 1.

[0051] Operation process: Turn the handle 303c, the handle 303c drives the bidirectional screw rod 303a to rotate synchronously, and under the action of the threaded connection between the bidirectional screw rod 303a and the second slider 302a, the second slider 302a drives the cushion block 303 to move toward or away from each other in the lateral direction. When the spacing between the cushion blocks 303 reaches a preset value, stop turning the handle 303c, and place both sides of the ball valve on the cushion block 303. Then start the first drive motor 301d, and the output shaft of the first drive motor 301d drives the fourth synchronous wheel 301e to rotate, and under the transmission action of the second V-belt 301f, the third synchronous wheel 301b drives the second screw rod 301a to rotate, and drives the second slider 302a to rise and fall through the second screw rod 301a, so that the placement plate 302 drives the ball valve to rise and fall, so that the axis of the ball valve and the center of the rotating frame 405 are kept on the same horizontal line.

[0052] Example 3

[0053] Reference Figure 8 and Fig. 9 , which is the third implementation of the utility model, is different from the above embodiments in that in order to facilitate the fixation between the valve seat and the rotating frame 405, the structures of the rotating frame 405 and the first clamping rod 406 are refined.

[0054] Specifically, a third slide groove 405a is provided on the vertical support arm of the rotating frame 405, a plurality of threaded holes 405b are provided at equal intervals on the outer wall of one side of the rotating frame 405 close to the rotating shaft 404, and mounting blocks 406a are movably connected to the upper and lower parts of the rotating frame 405, one end of the first clamping rod 406 is fixedly connected to the outer wall of one side of the mounting block 406a, and a fastening nut 406b is threadedly sleeved on the other end of the first clamping rod 406, and a protrusion 406c is movably connected to the inside of the third slide groove 405a, and a fastening screw 306c-1 is threadedly penetrated on the end surface of the protrusion 406c, and one end of the plurality of fastening screws 306c-1 is respectively screwed The threads are connected to the front and rear end surfaces of the mounting block 406a. During installation, the mounting block 406a is first placed inside the rotating frame 405, and the protrusions 406c are placed in the third slide grooves 405a respectively. Finally, one end of the fastening screw 306c-1 is threaded through the protrusion 406c and threadedly connected to the mounting block 406a, thereby realizing the movable installation of the mounting block 406a inside the rotating frame 405. A limiting plate 406d is welded on the outer wall on the other side of the mounting block 406a, and a positioning bolt 406e is threaded through the limiting plate 406d, and one end of the positioning bolt 406e is threadedly connected to the inside of the threaded hole 405b.

[0055] The rest of the structure is the same as that of Example 2.

[0056] Operation process: first unscrew the positioning bolt 406e, and adjust the spacing between the first clamping rods 406 according to the flange diameter of the valve seat, apply external force to the mounting block 406a, so that the mounting block 406a drives the first clamping rod 406 to move, so that the first clamping rod 406 is aligned with the through hole on the valve seat flange, and then the positioning bolt 406e is threaded through the limit plate 406d and threadedly connected to the inside of the new threaded hole 405b, finally, the first clamping rod 406 is passed through the through hole on the valve seat flange, and the fastening nut 406b is threadedly sleeved on the first clamping rod 406, so as to fix the valve seat and the rotating frame 405.

[0057] Example 4

[0058] Reference Figure 1 , Fig.10 , Fig.11 and Fig.12 , which is the fourth implementation of the utility model. This embodiment is different from the above embodiments in that it is convenient to take out the ball inside the valve seat, and solves the problem that the existing ball valve maintenance device is not convenient for disassembling the ball of the ball valve.

[0059] Specifically, it also includes a material-taking component 5 arranged on the moving column 2 located on the left side, and the material-taking component 5 includes a sleeve rod 501 that passes through the upper part of the outer wall of the moving column 2, one end of the sleeve rod 501 is fixedly connected to a fixed frame 502, and the fixed frame 502 is fixedly connected to a second clamping rod 503 on the upper and lower sides of the side away from the sleeve rod 501, and the structure of the fixed frame 502 is similar to the rotating frame 405, and the structure of the second clamping rod 503 is similar to the first clamping rod 406, and a push rod 504 is movably passed through the interior of the sleeve rod 501, one end of the push rod 504 movably passes through the fixed frame 502 and is bonded with a rubber pad 504a, and the other end of the push rod 504 is fixedly connected to a mounting plate 504b, and a second hydraulic cylinder 505 is fixedly connected to the lower part of the outer wall of one side of the moving column 2, and the piston shaft of the second hydraulic cylinder 505 is fixedly connected to a connecting plate 506, and the upper end of the connecting plate 506 is fixedly connected to the outer wall of the mounting plate 504b on the side away from the push rod 504.

[0060] Furthermore, a return spring 504c is sleeved on the outer side of the push rod 504, and two ends of the return spring 504c are respectively fixedly connected to the facing surfaces of the moving column 2 and the mounting plate 504b.

[0061] The rest of the structure is the same as that of Example 3.

[0062] Operation process: fix the fixing frame 502 and the other valve seat of the ball valve through the second clamping rod 503, and start the second hydraulic cylinder 505, the piston shaft of the second hydraulic cylinder 505 drives the connecting plate 506 to perform a linear reciprocating motion in the lateral direction, and the connecting plate 506 drives the push rod 504 to perform a linear reciprocating motion in the lateral direction through the mounting plate 504b, and an external force is applied to the ball inside the valve seat through the push rod 504, so that the ball is separated from the inside of the valve seat.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A ball valve maintenance workbench, characterized by: include, A maintenance platform (1); a movable column (2), movably connected to both sides of the top of the maintenance platform (1); and, The split assembly (4) comprises a first hydraulic cylinder (401) fixedly connected to a moving column (2) located on the right side, the piston shaft of the first hydraulic cylinder (401) is fixedly connected to a moving frame (402), and one side of the moving frame (402) is fixedly connected to a second drive motor (403), the output shaft of the second drive motor (403) is fixedly connected to a rotating shaft (404), and one end of the rotating shaft (404) away from the second drive motor (403) movably passes through the moving column (2) and is fixedly connected to a rotating frame (405), the rotating frame (405) is located between adjacent moving columns (2), and the upper and lower sides of the side of the rotating frame (405) away from the rotating shaft (404) are fixedly connected to a first clamping rod (406).

2. The ball valve maintenance workbench according to claim 1, characterized in that: A first slide groove (101) is provided on both sides of the top of the maintenance platform (1), and a first screw rod (201) is rotatably connected inside the first slide groove (101), one end of the first screw rod (201) is rotatably passed through an inner wall of one side of the first slide groove (101) and is sleeved with a first synchronous wheel (201a), and a first slider (202) is threadedly sleeved on the first screw rod (201), and the bottom end of the movable column (2) is fixedly connected to the top of the first slider (202).

3. The ball valve maintenance workbench according to claim 2, characterized in that: A dual-axis motor (203) is fixedly connected to the center of the bottom of the maintenance platform (1) via a motor frame (203a), and bearing seats (204) are fixedly connected to both sides of the bottom of the maintenance platform (1), and the output shafts of the dual-axis motor (203) are fixedly connected to drive rods (205), and one end of the drive rod (205) away from the dual-axis motor (203) rotates through the bearing seat (204) and is sleeved with a second synchronous wheel (205a), and the second synchronous wheel (205a) is transmission-connected to the first synchronous wheel (201a) via a first V-belt (205b).

4. The ball valve maintenance workbench according to claim 3, characterized in that: A placement assembly (3) is further provided at the top rear end of the maintenance platform (1), and the placement assembly (3) comprises mounting columns (301) respectively fixedly connected to both sides of the top rear end of the maintenance platform (1), the interior of the mounting columns (301) are rotatably connected to second screw rods (301a), and the second screw rods (301a) are threadedly sleeved with second sliders (302a), the front end surfaces of the second sliders (302a) are welded with fixing rods (302b), and the front ends of the fixing rods (302b) are welded with placement plates ( 302), a second slide groove (302c) is provided at the center of the surface of the placement plate (302), and a bidirectional screw rod (303a) is rotatably connected inside the second slide groove (302c), two ends of the bidirectional screw rod (303a) are respectively rotated to pass through the inner walls on both sides of the second slide groove (302c) and are fixedly connected to handles (303c), and third sliders (303b) are threadedly sleeved on both sides of the bidirectional screw rod (303a), and a pad (303) is welded on the top of the third slider (303b).

5. The ball valve maintenance workbench according to claim 4, characterized in that: The top end of the second screw rod (301a) rotates through the top end of the mounting column (301) and is sleeved with a third synchronous wheel (301b), and adjacent mounting columns (301) are fixedly connected with fixed plates (301c), a first drive motor (301d) is fixedly connected to the center position of the lower surface of the fixed plate (301c), and a fourth synchronous wheel (301e) is sleeved on the output shaft of the first drive motor (301d), and the third synchronous wheel (301b) is transmission-connected to the fourth synchronous wheel (301e) via a second V-belt (301f).

6. The ball valve maintenance workbench according to claim 1, characterized in that: A third slide groove (405a) is provided on each vertical support arm of the rotating frame (405), and a plurality of threaded holes (405b) are provided at equal intervals on an outer wall of one side of the rotating frame (405) close to the rotating shaft (404). The upper and lower parts of the rotating frame (405) are movably connected to mounting blocks (406a), and one end of the first clamping rod (406) is fixedly connected to an outer wall of one side of the mounting block (406a), and a fastening nut (406b) is threadedly sleeved on the other end of the first clamping rod (406).

7. The ball valve maintenance workbench according to claim 6, characterized in that: A protrusion (406c) is movably connected inside the third slide groove (405a), and a fastening screw (306c-1) is threadedly penetrated on the end surface of the protrusion (406c), one end of the plurality of fastening screws (306c-1) is respectively threadedly connected to the front and rear end surfaces of the mounting block (406a), a limiting plate (406d) is welded on the outer wall on the other side of the mounting block (406a), and a positioning bolt (406e) is threadedly penetrated on the limiting plate (406d), and one end of the positioning bolt (406e) is threadedly connected to the inside of the threaded hole (405b).

8. A ball valve maintenance device, characterized in that: A ball valve maintenance workbench comprising any one of claims 1 to 7; and The material taking assembly (5) comprises a sleeve rod (501) penetrating above the outer wall of the movable column (2) located on the left side, one end of the sleeve rod (501) is fixedly connected to a fixed frame (502), and the fixed frame (502) is fixedly connected to a second clamping rod (503) at the upper and lower sides of the side away from the sleeve rod (501), a push rod (504) is movably penetrated inside the sleeve rod (501), one end of the push rod (504) movably penetrates the fixed frame (502) and is bonded with a rubber pad (504a), and the other end of the push rod (504) is fixedly connected to a mounting plate (504b).

9. The ball valve maintenance device according to claim 8, characterized in that: A return spring (504c) is sleeved on the outer side of the push rod (504), and two ends of the return spring (504c) are respectively fixedly connected to the facing surfaces of the moving column (2) and the mounting plate (504b).

10. The ball valve maintenance device according to claim 9, characterized in that: A second hydraulic cylinder (505) is fixedly connected below an outer wall on one side of the movable column (2), and a piston shaft of the second hydraulic cylinder (505) is fixedly connected to a connecting plate (506), and an upper end of the connecting plate (506) is fixedly connected to an outer wall on one side of the mounting plate (504b) away from the push rod (504).

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