Pressure screen lifting device welding tool

Abstract

The utility model discloses a pressure screen hoisting device welding tool relates to pressure screen technical field, aims at solving the problem of welding deformation and size deviation, adopts the technical scheme, including the chassis, sleeve connecting tray and derrick connecting tray, is equipped with the slide rail on the chassis, and sleeve connecting tray and derrick connecting tray all are through the sliding block sliding connection on the slide rail, the ball screw is also rotationally connected on the chassis, and the ball screw is equipped with the adjusting hand wheel in one end, and the ball screw drives sleeve connecting tray and derrick connecting tray to move to each other or to move away, and sleeve connecting tray and derrick connecting tray are equipped with sleeve tool and derrick tool respectively, and sleeve tool and derrick tool are used for the spacing of hoisting device processing, and the sleeve tool and derrick tool of modularization design can match the pressure screen hoisting device of different specifications, thereby realizing the serialization of pressure screen hoisting device welding tool.

Description

Technical Field

[0001] This utility model relates to the field of pressure screen technology, specifically to a welding fixture for a pressure screen lifting device. Background Technology

[0002] The lifting device for a pressure screen is a crucial component, primarily consisting of a lifting support, a rotating shaft, a rotating shaft sleeve, and a drive unit. The lifting support is fixed to the pressure screen cylinder, and the rotating shaft sleeve is hinged to the top cover via stiffening plates. The drive unit typically includes a lifting screw, a nut support, and bearings. Rotation of the lifting screw drives the rotating shaft sleeve to move up and down along the shaft, thereby raising and lowering the top cover. Simultaneously, the design of the bearings and connecting rods limits the axial displacement of the rotating shaft sleeve and reduces friction, ensuring smooth lifting and lowering of the top cover. Some devices are also equipped with a motor or handwheel drive to meet the needs of manual or automated operation. The application of this type of lifting device effectively reduces the risks of manual operation, shortens equipment maintenance time, and ensures the screening accuracy and service life of the pressure screen.

[0003] However, existing pressure screen lifting devices suffer from significant welding technology problems during manufacturing: deformation easily occurs during welding, and dimensional deviations are prone to occur during docking. These accumulated deformations adversely affect the connection dimensions of the lifting device, leading to malfunctions such as seizing, increased friction making opening and closing difficult, and severely impacting normal equipment operation. Currently, existing lifting devices are mostly welded to the pressure screen cylinder and top cover; however, welding shrinkage and deformation during the docking process still cannot completely prevent the aforementioned dimensional deviations and operational malfunctions.

[0004] With the serialization and standardization of pressure screen equipment, its lifting device has basically formed three specifications. In order to achieve precise and efficient welding of the lifting device, there is a clear demand for serialized welding tooling. Serialized welding tooling can ensure the docking dimension accuracy of the lifting device, thereby solving the usage problems caused by welding deformation and dimensional deviation, and improving production efficiency. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the existing defects and provide a welding fixture for a pressure screen lifting device, which can effectively solve the problems in the background art.

[0006] To achieve the above objectives, this utility model discloses a welding fixture for a pressure screen lifting device. The technical solution adopted includes a base frame, a sleeve connecting tray, and a hanging column connecting tray. The base frame is provided with a slide rail, and the sleeve connecting tray and the hanging column connecting tray are slidably connected to the slide rail by a slider.

[0007] A ball screw is rotatably connected to the base frame. One end of the ball screw is equipped with an adjusting handwheel. The ball screw drives the sleeve connecting tray and the hanging column connecting tray to move towards or away from each other.

[0008] The sleeve connecting tray and the hanging column connecting tray are respectively equipped with sleeve fixtures and hanging column fixtures. The sleeve fixtures and the hanging column fixtures are used to limit the processing of the lifting device. The modularly designed sleeve fixtures and hanging column fixtures can be matched with pressure screen lifting devices of different specifications, thereby realizing the serialization of welding fixtures for pressure screen lifting devices.

[0009] As a preferred technical solution of this utility model, the sleeve tooling includes a sleeve base and a sleeve pressure plate. The sleeve base is installed on the sleeve connecting tray. From bottom to top, the upper edge of the sleeve base is provided with a sleeve limiting post and a sleeve clamping stud. The sleeve pressure plate is slidably connected to the sleeve clamping stud. A sleeve clamping handwheel for clamping and limiting the sleeve pressure plate is engaged on the sleeve clamping stud.

[0010] As a preferred embodiment of this utility model, an annular groove is also provided on the facing surfaces of the sleeve limiting post and the lifting device to reduce the contact area with the lifting device.

[0011] As a preferred technical solution of this utility model, the top surface of the sleeve base near the column fixture is also provided with a rib plate limiting block. The rib plate limiting block is provided with a slot. Both the sleeve fixture and the column fixture are provided with slots for limiting the rib plate, which makes it easier to connect the rib plate with the sleeve and the column, and the positioning is more accurate, thereby further ensuring the forming dimensions.

[0012] As a preferred technical solution of this utility model, the lifting column fixture includes a lifting column base and a lifting column pressure plate. The lifting column base is installed on the lifting column connecting tray. The lifting column base is provided with a lifting column clamping stud. The lifting column pressure plate is fitted on the lifting column clamping stud. A lifting column handwheel that clamps and limits the lifting column pressure plate is engaged on the lifting column clamping stud.

[0013] As a preferred technical solution of this utility model, the base of the hanging column is also provided with a stiffening plate limiting ring, the stiffening plate limiting ring is coaxially arranged with the hanging column clamping stud, and the stiffening plate limiting ring is provided with a slot.

[0014] As a preferred technical solution of this utility model, the slide rail is provided in two sets, and two sliders are slidably connected on each set of the slide rail. The two sliders with corresponding longitudinal positions form a set, which are respectively installed at the bottom of the sleeve connecting tray and the hanging column connecting tray. By setting the cooperation of the slide rail, slider and ball screw, it is convenient to accurately adjust the distance between the sleeve fixture and the hanging column fixture. At the same time, the setting of double slide rail ensures the straightness during the displacement process.

[0015] As a preferred embodiment of this utility model, the slide rail is provided with a scale, and the slider is provided with an indicator arrow corresponding to the position of the scale. By providing an indicator arrow on the slider and a scale on the slide rail, the operator can read the values ​​more conveniently.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model, through the cooperation of slide rails, sliders, and ball screws, facilitates precise adjustment of the distance between the sleeve fixture and the hanging column fixture. Simultaneously, the double slide rail configuration ensures straightness during displacement. Indicator arrows are provided on the sliders, and scales are provided on the slide rails, allowing workers to read the values ​​more conveniently. Both the sleeve fixture and the hanging column fixture have slots for limiting the rib plates, making the connection between the rib plates and the sleeve and hanging column easier and more accurate, thereby further ensuring the forming dimensions. The modular design of the sleeve fixture and hanging column fixture allows for matching with pressure screen lifting devices of different specifications, thus achieving a series of welding fixtures for pressure screen lifting devices. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the base frame structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the sleeve fixture and the lifting column fixture of this utility model;

[0020] Figure 4 This is a schematic diagram of the sleeve tooling structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the lifting column tooling structure of this utility model;

[0022] Figure 6 This is an enlarged view of section A of this utility model.

[0023] In the diagram: 1. Base frame; 2. Slide rail; 3. Ball screw; 4. Sleeve connecting tray; 5. Sleeve base; 6. Sleeve clamping handwheel; 7. Sleeve pressure plate; 8. Lifting device; 9. Hanging column handwheel; 10. Hanging column pressure plate; 11. Hanging column base; 12. Hanging column connecting tray; 13. Adjusting handwheel; 14. Sliding block; 15. Scale; 16. Indicating arrow; 17. Sleeve clamping stud; 18. Sleeve limiting post; 19. Hanging column clamping stud; 20. Rib plate limiting ring; 21. Rib plate limiting block; 22. Slot. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example 1

[0025] like Figures 1 to 6 As shown, this utility model discloses a welding fixture for a pressure screen lifting device. The technical solution adopted is as follows: base frame 1, slide rail 2, ball screw 3, sleeve connecting tray 4, sleeve base 5, sleeve clamping handwheel 6, sleeve pressure plate 7, lifting device 8, hanging column handwheel 9, hanging column pressure plate 10, hanging column base 11, hanging column connecting tray 12, adjusting handwheel 13, slider 14, scale 15 and indicating arrow 16.

[0026] The slide rail 2 and ball screw 3 are fixed on the base frame 1. The adjusting handwheel 13 is installed on one end of the ball screw 3. The slider 14 is placed on the slide rail 2. The sleeve connecting tray 4 and the hanging column connecting tray 12 are fixed above the slider 14. The sleeve fixture is fixed above the sleeve connecting tray 4. The hanging column fixture is fixed above the hanging column connecting tray 12. The center distance of the fixture is indicated by the scale 15 and the indicator arrow 16. After adjusting to the required size by adjusting the handwheel 13, the ball screw 3 and the slider 14 are tightened. The pressure screen lifting device 8 to be welded is placed above the sleeve fixture and the hanging column fixture. The sleeve clamping handwheel 6 is used to clamp the positioning sleeve pressure plate 7. The hanging column handwheel 9 is used to clamp the positioning hanging column pressure plate 10. Then the welding of the pressure screen lifting device 8 can begin.

[0027] like Figure 4 As shown, the sleeve fixture includes a sleeve base 5 and a sleeve pressure plate 7. The sleeve base 5 is mounted on the sleeve connecting tray 4. From bottom to top, the upper edge of the sleeve base 5 is provided with a sleeve limiting post 18 and a sleeve clamping stud 17. The sleeve pressure plate 7 is slidably connected to the sleeve clamping stud 17. A sleeve clamping handwheel 6 is engaged on the sleeve clamping stud 17 to clamp and limit the sleeve pressure plate 7. The sleeve is fitted onto the sleeve limiting post 18 and the sleeve clamping stud 17, and the sleeve is limited by the sleeve pressure plate 7 in conjunction with the sleeve clamping handwheel 6.

[0028] The sleeve base 5 is also provided with a rib plate limiting block 21 on the top surface near the column tooling. The rib plate limiting block 21 is provided with a slot 22 for locking and supporting the rib plate.

[0029] like Figure 6As shown, an annular groove is also provided on the facing surfaces of the sleeve limiting post 18 and the lifting device 8 to reduce the contact area with the lifting device 8, making it easier for workers to remove the lifting device 8 after welding.

[0030] like Figure 5 As shown, the lifting column fixture includes a lifting column base 11 and a lifting column pressure plate 10. The lifting column base 11 is mounted on the lifting column connecting tray 12. The lifting column base 11 is provided with a lifting column clamping stud 19. The lifting column pressure plate 10 is fitted on the lifting column clamping stud 19. A lifting column handwheel 9 is engaged on the lifting column clamping stud 19 to clamp and limit the lifting column pressure plate 10.

[0031] The base 11 of the hanging column is also provided with a stiffening plate limiting ring 20. The stiffening plate limiting ring 20 is coaxially arranged with the hanging column clamping stud 19, and the stiffening plate limiting ring 20 is provided with a slot 22. When the hanging column is installed, the outer wall of its bottom is in contact with the inner wall of the stiffening plate limiting ring 20, and the hanging column is limited by the hanging column pressure plate 10 and the hanging column handwheel 9.

[0032] The working principle of this utility model is as follows: Based on the size and model of the pressure screen lifting device 8, select the corresponding sleeve fixture and hanging column fixture, fix the sleeve fixture and hanging column fixture on the sleeve connecting tray 4 and the hanging column connecting tray 12, adjust the distance between the sleeve connecting tray 4 and the hanging column connecting tray 12 to the required size using the adjusting handwheel 13 according to the size of the pressure screen lifting device 8, tighten the ball screw 3 and the slider 14, install the rotating shaft sleeve and the hanging column in the pressure screen lifting device 8 onto the sleeve fixture and the hanging column fixture respectively, tighten the sleeve pressure plate 7 using the sleeve clamping handwheel 6, tighten the hanging column pressure plate 10 using the hanging column handwheel 9, place the stiffening plate in the pressure screen lifting device 8 into the slot 22 in the sleeve fixture and the hanging column fixture, and then weld as required.

[0033] The circuits and mechanical connections involved in this utility model are common practices used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments. They are common knowledge.

[0034] Components not described in detail in this article are existing technologies.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A welding fixture for a pressure screen lifting device, characterized in that: It includes a base frame (1), a sleeve connecting tray (4) and a hanging column connecting tray (12). The base frame (1) is provided with a slide rail (2). The sleeve connecting tray (4) and the hanging column connecting tray (12) are slidably connected to the slide rail (2) by a slider (14). A ball screw (3) is rotatably connected to the base frame (1). One end of the ball screw (3) is provided with an adjusting handwheel (13). The ball screw (3) drives the sleeve connecting tray (4) and the hanging column connecting tray (12) to move towards each other or away from each other. The sleeve connecting tray (4) and the hanging column connecting tray (12) are respectively provided with sleeve fixture and hanging column fixture, which are used to limit the processing of the lifting device (8).

2. The welding fixture for a pressure screen lifting device according to claim 1, characterized in that: The sleeve fixture includes a sleeve base (5) and a sleeve pressure plate (7). The sleeve base (5) is mounted on the sleeve connecting tray (4). The upper edge of the sleeve base (5) is provided with a sleeve limiting post (18) and a sleeve clamping stud (17) from bottom to top. The sleeve pressure plate (7) is slidably connected to the sleeve clamping stud (17). A sleeve clamping handwheel (6) for clamping and limiting the sleeve pressure plate (7) is engaged on the sleeve clamping stud (17).

3. The welding fixture for a pressure screen lifting device according to claim 2, characterized in that: The sleeve limiting post (18) and the lifting device (8) have an annular groove on their facing surfaces to reduce the contact area with the lifting device (8).

4. The welding fixture for a pressure screen lifting device according to claim 2, characterized in that: The sleeve base (5) is also provided with a rib plate limiting block (21) on the top surface near the column tooling, and a slot (22) is provided on the rib plate limiting block (21).

5. The welding fixture for a pressure screen lifting device according to claim 1, characterized in that: The lifting column fixture includes a lifting column base (11) and a lifting column pressure plate (10). The lifting column base (11) is installed on the lifting column connecting tray (12). The lifting column base (11) is provided with a lifting column clamping stud (19). The lifting column pressure plate (10) is fitted on the lifting column clamping stud (19). A lifting column handwheel (9) for clamping and limiting the lifting column pressure plate (10) is engaged on the lifting column clamping stud (19).

6. The welding fixture for a pressure screen lifting device according to claim 5, characterized in that: The base (11) of the hanging column is also provided with a stiffening plate limiting ring (20), which is coaxially arranged with the hanging column clamping stud (19), and a slot (22) is provided on the stiffening plate limiting ring (20).

7. The welding fixture for a pressure screen lifting device according to claim 1, characterized in that: The slide rail (2) is provided in two sets. Each set of slide rail (2) has two sliders (14) slidably connected on it. The two sliders (14) with corresponding longitudinal positions form a set and are respectively installed at the bottom of the sleeve connecting tray (4) and the hanging column connecting tray (12).

8. The welding fixture for a pressure screen lifting device according to claim 1 or 7, characterized in that: The slide rail (2) is provided with a scale (15), and the slider (14) is provided with an indicator arrow (16) corresponding to the position of the scale (15).

Images