Adjustable support device for mid-slot mid-plate assembly

Abstract

The application discloses a middle groove middle plate assembly adjustable supporting device, and relates to the technical field of mechanical manufacturing process and assembly tooling technology.The device comprises a jackscrew and a jack seat.The jackscrew is screwed with the jack seat, the axis of the jackscrew coincides with the central axis of the jack seat, and the jackscrew can move up and down along the axis direction relative to the jack seat.The bottom of the jack seat is placed on the assembly platform of the middle plate of the middle groove, and the jackscrew is used for contacting and supporting the lower surface of the middle plate.Through the arrangement, the middle plate can be stably supported, the middle plate can be quickly and accurately adjusted in height, and the operation safety is ensured.

Description

Technical Field

[0001] This application relates to the field of mechanical manufacturing processes and assembly tooling technology, and in particular to an adjustable support device for assembling the middle plate of a central trough. Background Technology

[0002] Scraper conveyors are core equipment in mining, coal transportation, and other fields. The central trough, as a critical load-bearing component (accounting for approximately 75%–85% of the total weight), directly affects the equipment's service life and efficiency. The central trough consists of a central plate, bottom plate, shovel plates, and baffle plates. Traditionally, assembling the central plate requires inverting the shovel plates and baffle plates onto a platform, then using an overhead crane to hoist the central plate to a predetermined height for positioning. However, this assembly method suffers from several drawbacks. The central plate continuously sways in the air due to gravity, requiring repeated adjustments, making positioning difficult and time-consuming. Furthermore, operators must manually stabilize the central plate for positioning, increasing the risk of finger injuries. Manual adjustments also rely on experience and cannot quickly adapt to height variations of different central plate sizes. Utility Model Content

[0003] This application aims to address at least one of the technical problems existing in the prior art. To this end, this application proposes an adjustable support device for assembling the middle plate of a central channel, which can stably support the middle plate, achieve rapid and precise height adjustment of the middle plate, and ensure operational safety.

[0004] This application provides an adjustable support device for assembling a central slot plate, comprising: a set screw and a top seat; the set screw is threadedly connected to the top seat, the axis of the set screw coincides with the central axis of the top seat, and the set screw can move up and down relative to the top seat along the axial direction; The bottom of the top seat rests flat on the assembly platform of the middle plate of the central groove, and the set screw is used to contact and support the lower surface of the middle plate.

[0005] According to some embodiments of this application, the lower end of the set screw is machined with an external thread, and the top seat has an internal thread hole that matches the external thread. The external thread end of the set screw is vertically screwed into the internal thread hole of the top seat.

[0006] According to some embodiments of this application, the external thread machined at the lower end of the set screw is an M30 external thread, and the internal thread hole opened in the top seat is an M30 internal thread hole.

[0007] According to some embodiments of this application, the bottom of the top seat is provided with a trapezoidal support end.

[0008] According to some embodiments of this application, the head of the set screw is provided with a plate-tightening structure.

[0009] The technical effects achieved by this application are as follows: 1. Eliminate center plate sway and achieve precise positioning: The top seat is placed on the assembly platform, and the top screws act as rigid support points to directly support the center plate, replacing the overhead crane suspension method. This changes the center plate from "dynamic suspension" to "static support," eliminating gravitational sway and transforming position adjustment from "dynamic alignment in the air" to "static fine-tuning on the platform," significantly improving positioning accuracy and speed. 2. Ensure operational safety and avoid work-related injury risks: Operators do not need to perform high-risk manual straightening operations under the suspended middle plate, avoiding the risk of fingers being caught in the swaying middle plate, which complies with safety production regulations; 3. Adaptable to different specifications, improving versatility and efficiency: Through the threaded connection structure, stepless height adjustment can be achieved by rotating the set screw, covering the height requirements of different middle plates. A single set of devices can be used for the assembly of multiple models of middle slots, reducing tooling change time and significantly improving efficiency.

[0010] 4. Simplify the process and reduce the difficulty of operation: The crane only needs to place the middle plate on the support device initially, and the subsequent height adjustment is completed by the threaded mechanism, which reduces the dependence on the accuracy of crane operation, reduces the labor intensity of workers, shortens the training cycle, and is suitable for mass production scenarios.

[0011] This application transforms the high-risk "aerial dynamic positioning" in traditional processes into a safe "platform static adjustment" through this setup. It not only solves the safety and accuracy issues, but also achieves versatility through standardized design, meeting the needs of mass production of the middle tank. It can stably support the middle plate, enable rapid and accurate height adjustment of the middle plate, and ensure operational safety.

[0012] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0013] Additional aspects and advantages of this application will become apparent and readily understood in conjunction with the following description of the embodiments, in which: Figure 1 This is a schematic diagram of the structure of the central groove provided in an embodiment of this application; Figure 2 A schematic diagram of the adjustable support device for assembling the middle plate of the central channel provided in this application embodiment; Figure 3 This is a schematic diagram of the structure of the set screw provided in an embodiment of this application; Figure 4 This is a schematic diagram of the structure of the top seat provided in an embodiment of this application.

[0014] Figure label: The middle trough plate assembly includes an adjustable support device 100, a set screw 110, a plate screwing structure 111, an external thread end 112, a top seat 120, and a trapezoidal support end 121. Assembly platform 200, middle plate 210, shovel plate groove 220, baffle plate groove 230. Detailed Implementation

[0015] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0016] In the description of this application, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and 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. Therefore, they should not be construed as limitations on this application.

[0017] In the description of this application, the use of "first" and "second" is for the purpose of distinguishing technical features only, and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or the order of the technical features indicated.

[0018] In the description of this application, unless otherwise expressly defined, terms such as "setup," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this application in conjunction with the specific content of the technical solution.

[0019] Scraper conveyors are core equipment in mining, coal transportation, and other fields. The central trough, as a critical load-bearing component (accounting for approximately 75%–85% of the total weight), directly affects the equipment's service life and efficiency. The central trough consists of a central plate, bottom plate, shovel plates, and baffle plates. Traditionally, assembling the central plate requires inverting the shovel plates and baffle plates onto a platform, then using an overhead crane to hoist the central plate to a predetermined height for positioning. However, this assembly method suffers from several drawbacks. The central plate continuously sways in the air due to gravity, requiring repeated adjustments, making positioning difficult and time-consuming. Furthermore, operators must manually stabilize the central plate for positioning, increasing the risk of finger injuries. Manual adjustments also rely on experience and cannot quickly adapt to height variations of different central plate sizes.

[0020] To address the aforementioned problems, this application proposes an adjustable support device 100 for assembling the middle plate of a central trough. The embodiments of this application will be further described below with reference to the accompanying drawings.

[0021] Reference Figures 1 to 4This application provides an adjustable support device 100 for assembling the middle plate of a central slot, including a set screw 110 and a top seat 120; the set screw 110 is threadedly connected to the top seat 120, the axis of the set screw 110 coincides with the central axis of the top seat 120, and the set screw 110 can move up and down relative to the top seat 120 along the axial direction; the bottom of the top seat 120 is placed flat on the assembly platform 200 of the middle plate 210 of the central slot, and the set screw 110 is used to contact and support the lower surface of the middle plate 210.

[0022] It should be noted that the bottom surface of the top seat 120 is in direct contact with the working surface of the assembly platform 200. The top seat 120 is stably placed on the platform by its own weight and the widened bottom design. Its position can be freely moved and placed on the assembly platform 200 as needed.

[0023] It should be noted that after the overhead crane lifts the middle plate 210 over, it is gently placed on the upper surface of the head of the adjustable top screw 110. The upper surface of the top screw 110 directly contacts and supports the lower surface of the middle plate 210, with the top of the top screw 110 serving as the support point for the middle plate 210. Typically, multiple (at least two, usually near the four corners) adjustable support points are used under a middle plate 210.

[0024] It should be noted that the specific functions of the set screw 110 are: (1) Height adjustment actuator: By rotating the set screw 110, it can be screwed into or out of the top seat 120, thereby precisely and continuously changing the vertical height (Z direction) of its head relative to the platform (i.e., relative to the inverted groove side); (2) Direct support point: The head (upper end) of the set screw 110 is the part that directly bears the weight of the middle plate 210 and provides support; (3) Force transmission rod: It transmits the weight of the middle plate 210 to the top seat 120 through itself. The top seat 120 serves as a reference for the positioning of the support point: The position of the top seat 120 placed on the platform determines the position of the support point on the platform plane (XY direction).

[0025] For example, the overall workflow of the adjustable support device 100 for assembling the middle plate of the middle channel is as follows: (1) Placement of supports: According to the approximate position of the middle plate 210 and the support point requirements, the workers place multiple assembled adjustable supports (top screws 110 screwed into top seats 120) in the corresponding positions of the assembly platform 200; (2) Preliminary height adjustment: According to the height of the middle plate 210 required by the drawings (relative to the position of the inverted channel side), the workers use tools to rotate each top screw 110 to preliminarily adjust its head to reach the preset height range; (3) Placement of the middle plate 210: The overhead crane lifts the middle plate 210 to above the support point. Slowly lower and place it on the heads of each set screw 110 that has been adjusted in height. At this time, the middle plate 210 is stably supported by the adjustable support and no longer shakes; (4) Fine adjustment positioning: The worker can safely and conveniently fine adjust the height of each set screw 110, accurately control the position of the middle plate 210 in the vertical direction, and can assist in adjusting the position of the middle plate 210 in the horizontal plane (XY direction) by tapping, etc., until the assembly size requirements are fully met; (5) Positioning assembly: After the middle plate 210 is accurately positioned, it can be welded or bolted to the shovel plate groove side 220 and the baffle plate groove side 230 for assembly processes.

[0026] The technical effects achieved by this application are as follows: 1. Eliminate the swaying of the middle plate 210 and achieve precise positioning: The top seat 120 is placed on the assembly platform 200, and the top screw 110 directly supports the middle plate 210 as a rigid support point, replacing the overhead crane suspension method. This changes the middle plate 210 from "dynamic suspension" to "static support," eliminating gravity swaying and transforming position adjustment from "dynamic alignment in the air" to "static fine-tuning on the platform," significantly improving positioning accuracy and speed. 2. Ensure operational safety and avoid work-related injury risks: Operators do not need to perform high-risk manual straightening operations under the suspended middle plate 210, avoiding the risk of fingers being caught in the shaking middle plate 210, which complies with safety production regulations; 3. Adaptable to different specifications, improving versatility and efficiency: Through the threaded connection structure, stepless height adjustment can be achieved by rotating the set screw 110, covering the height requirements of different middle plates 210. A single set of devices can be used for the assembly of multiple models of middle slots, reducing tooling change time and significantly improving efficiency.

[0027] 4. Simplify the process and reduce the difficulty of operation: The crane only needs to initially place the middle plate 210 on the support device, and the subsequent height adjustment is completed by the threaded mechanism, which reduces the dependence on the crane operation accuracy, reduces the labor intensity of workers, shortens the training cycle, and is suitable for mass production scenarios.

[0028] This application transforms the high-risk "aerial dynamic positioning" in traditional processes into a safe "platform static adjustment" through this setup. It not only solves the safety and accuracy issues, but also achieves versatility through standardized design, meeting the needs of mass production of the middle tank. It can stably support the middle plate 210, enable the middle plate 210 to be quickly and accurately adjusted in height, and ensure operational safety.

[0029] Reference Figure 2 It is understandable that the lower end of the set screw 110 is machined with an external thread, and the top seat 120 has an internal thread hole that matches the external thread. The external thread end 112 of the set screw 110 is screwed vertically into the internal thread hole of the top seat 120.

[0030] It should be noted that the internal threaded hole in the top seat 120 serves to accommodate and guide the set screw 110 screwed into it, ensuring that the set screw 110 can only move up and down along the axial direction and remain vertical.

[0031] It should be noted that the external thread (set screw 110) and the internal threaded hole (top seat 120) form a precision thread pair, converting rotational motion into linear displacement. When the set screw 110 is rotated, the thread engagement forces the set screw 110 to move precisely up and down along the axial direction (Z-axis movement), achieving stepless height adjustment. Furthermore, the internal threaded hole provides full circumferential constraint to the set screw 110, ensuring that the set screw 110 moves strictly vertically and avoiding support instability caused by tilting. At the same time, the self-locking characteristic of the thread engagement can prevent the set screw 110 from accidentally sinking under the gravity of the middle plate 210. The load transmission path is: gravity of the middle plate 210 → head of the set screw 110 → threaded section of the set screw 110 → internal threaded hole of the top seat 120 → bottom of the top seat 120 → assembly platform 200, forming a closed-loop force chain to ensure efficient and reliable force transmission. The screw-in structure facilitates the disassembly and maintenance of the device and also allows for the replacement of different specifications of the set screw 110 to adapt to special working conditions.

[0032] It is understandable that the external thread machined at the lower end of the set screw 110 is an M30 external thread, and the internal thread hole opened in the top seat 120 is an M30 internal thread hole.

[0033] It should be noted that the internal M30 threaded hole and the M30 external thread of the set screw 110 together form a precision threaded pair. This threaded pair is the mechanical structural basis for achieving height adjustment, converting the rotational motion of the set screw 110 into precise linear lifting motion.

[0034] It should be noted that the M30 thread (nominal diameter 30mm) is a medium-sized thread specification. Its shear and compressive strength can withstand the static and dynamic adjustment loads of heavy-duty medium plates 210, avoiding thread deformation or stripping. The standardized thread ensures the fit accuracy of the thread pair, reduces backlash, and improves the repeatability of height adjustment. At the same time, the M30 size balances adjustment accuracy and operating torque: if the thread is too small, it will wear easily and be difficult to adjust; if it is too large, it will make the device bulky. This specification is within the operating range of a manual wrench, balancing efficiency and ergonomics. In addition, the standard thread parameters facilitate spare parts replacement, reduce maintenance costs, and also facilitate standardized management of production line equipment.

[0035] Reference Figure 2 and Figure 4 It is understandable that the bottom of the top seat 120 is provided with a trapezoidal support end 121.

[0036] It should be noted that the bottom of the top seat 120 is designed as a trapezoidal support end 121, so that its bottom is wide. The purpose is to increase the contact area with the assembly platform 200, significantly reduce the pressure per unit area, improve the overall stability of the support, and prevent overturning, sliding or sinking when supporting the middle plate 210. It bears the task of transferring and distributing all the loads from the top screw 110 and the middle plate 210 to the assembly platform 200.

[0037] It should be noted that the trapezoidal support end 121 at the bottom of the top seat 120 serves the following specific functions: ① Anti-overturning stability: The trapezoidal structure creates a low center of gravity and a wide base (analogous to the stability principle of a pyramid), significantly improving the resistance to lateral overturning. When the middle plate 210 is finely adjusted and generates a horizontal component force, the trapezoidal support end 121 can effectively suppress the sliding or overturning of the top seat 120; ② Pressure dispersion and platform protection: Increasing the bottom contact area disperses the concentrated load of the middle plate 210 to the assembly platform 200, preventing the platform surface from being crushed and deformed; ③ Adaptive to platform flatness: The trapezoidal edges can slightly embed into minor unevenness in the platform, enhancing the frictional self-locking effect and reducing accidental displacement during fine-tuning; ④ Quick positioning assistance: The trapezoidal contour provides workers with visual alignment reference lines, facilitating the rapid placement of multiple support points on the platform while maintaining directional consistency.

[0038] Reference Figures 2 to 3 It is understandable that the head of the set screw 110 is provided with a plate screwing structure 111.

[0039] In some embodiments, the upper surface head of the plate screw structure 111 is designed as a flat surface, a spherical surface, or with a small groove to increase stability. Sufficient bearing area and strength are required to prevent crushing or scratching of the middle plate 210.

[0040] It should be noted that the plate screwing structure 111 can be a hexagonal head, a square head, or a star-shaped head with meshing teeth. This embodiment of the application does not limit the specific type of screwing structure.

[0041] It should be noted that the plate screw-on structure 111 provides a reliable and efficient physical interface for transmitting torque to the tool. When workers use tools such as wrenches, screwdrivers, sockets, and Allen wrenches, the tool needs to be firmly engaged with the screw head. The plate screw-on structure 111 (such as hexagonal, square, grooved, or hole-shaped) effectively and reliably transmits the rotational force (torque) applied by the tool to the body of the set screw 110, driving the set screw 110 to screw into or out of the workpiece. When the smooth cylindrical head of the set screw 110 cannot withstand the torque, the tool will slip. The plate screw-on structure 111 increases the contact area and friction between the tool and the screw, and provides physical barriers (the engagement of surfaces and teeth), ensuring that the tool will not easily slip when a large torque is applied.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above 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 one or more embodiments or examples.

[0043] The above description is the preferred embodiment of this application. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this application, and these improvements and modifications are also considered to be within the scope of protection of this application.

[0044] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An adjustable support device for assembling a central groove plate, characterized in that, include: set screw and set seat; The set screw is threadedly connected to the top seat, the axis of the set screw coincides with the central axis of the top seat, and the set screw can move up and down relative to the top seat along the axial direction. The bottom of the top seat rests flat on the assembly platform of the middle plate of the central groove, and the set screw is used to contact and support the lower surface of the middle plate.

2. The adjustable support device for assembling the middle plate of the central channel according to claim 1, characterized in that, The lower end of the set screw is machined with an external thread, and the top seat has an internal thread hole that matches the external thread. The external thread end of the set screw is screwed vertically into the internal thread hole of the top seat.

3. The adjustable support device for assembling the middle plate of the central channel according to claim 2, characterized in that, The lower end of the set screw is machined with an M30 external thread, and the internal thread hole opened in the top seat is an M30 internal thread hole.

4. The adjustable support device for assembling the middle plate of the central channel according to claim 1, characterized in that, The bottom of the top seat is provided with a trapezoidal support end.

5. The adjustable support device for assembling the middle plate of the central channel according to claim 1, characterized in that, The head of the set screw is provided with a plate-tightening structure.

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