Automatic alignment rotation stopping device for assembly of stand column outer cylinder body

Abstract

The utility model provides a stand column outer cylinder body assembly automatic centering rotation device which comprises a bottom plate provided with a bottom hole and a pair of side plates arranged on the bottom plate, the side plates are distributed on the two sides of the bottom hole, the center of each side plate is provided with a side plate groove used for front-back sliding centering, and the side plate grooves are communicated with the bottom hole. The side plate grooves are internally provided with stop blocks for left and right gliding and centering respectively; the central axis of the pair of check blocks coincides with one central line of the bottom hole, and the central line of the side plate groove coincides with the other central line of the bottom hole. According to the automatic centering rotation stopping device for assembly of the stand column outer cylinder body, the function of automatic centering of the stand column outer cylinder body in the front-back and left-right directions can be achieved, the stability of the falling process of the stand column outer cylinder body is guaranteed, the centering precision is improved, and the rotation stopping function can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic columns, specifically to an automatic centering and anti-rotation device for assembling the outer cylinder of a column. Background Technology

[0002] As a crucial component of hydraulic supports, the column serves to withstand roof pressure and adjust the height of the hydraulic support. Traditional column assembly relies on manual operation, resulting in low automation and standardization, low assembly efficiency, and poor assembly quality. Automated assembly of hydraulic support columns has become an important aspect of automated hydraulic support production. Automated assembly improves efficiency, precision, prevents component damage, and enhances overall assembly quality. In the column assembly production line, the outer cylinder body is placed on an automatic alignment and anti-rotation mechanism. The middle cylinder assembly is then lifted using a middle cylinder lifter and placed inside the outer cylinder. A guide sleeve is then placed, and the automated assembly device screws the guide sleeve into the cylinder body to complete the assembly. Achieving automatic alignment of the outer cylinder body during column assembly is a critical issue. Since the bottom of the outer cylinder body is a non-machined surface, axial alignment of the outer cylinder components is crucial during automated assembly. Alignment is essential for the assembly of the middle cylinder, guide sleeve, and other components with the outer cylinder body. Especially during the assembly of the middle cylinder assembly and the cylinder body, misalignment of the outer cylinder can lead to seal damage, guide sleeve wear, and other problems, affecting product quality.

[0003] Patent CN115488619B discloses a novel automatic positioning and disassembly mechanism for hydraulic support pins, comprising a three-dimensional moving support and a disassembly mechanism. The disassembly mechanism includes a fixed frame, a starter motor, a central gear, a central lead screw, and a base plate. A drive gear is coaxially fixedly connected to the output shaft of the starter motor; the central gear is coaxially fixedly connected to the central lead screw, which is threaded to a bushing. An internal gear ring is fixedly mounted on the base plate, and a connecting rod is fixedly mounted on the middle plate. The connecting rod is hinged to a positioning rod, and a clutch rod is hinged to the positioning rod. A synchronous gear and a clutch gear are respectively connected to the two ends of the clutch rod. When the output shaft is in the retracted position, the drive gear meshes with the synchronous gear, and the clutch gear meshes with the internal gear ring. When the output shaft is in the extended position, the drive gear meshes with the central gear, and the clutch gear disengages from the internal gear ring. This novel automatic positioning and disassembly mechanism for hydraulic support pins achieves high torque output through a high-ratio gear set, enabling smooth and low-speed pin assembly and disassembly. However, this mechanism cannot be directly applied to the assembly of outer cylinder blocks on large-diameter cylinder columns. Utility Model Content

[0004] To improve the stability and centering accuracy during the installation of the outer cylinder of the column and to achieve the anti-rotation function, the technical solution adopted by this utility model is: an automatic centering and anti-rotation device for assembling the outer cylinder of the column, including a base plate with a bottom hole and a pair of side plates disposed on the base plate. The side plates are distributed on both sides of the bottom hole, and the center of each side plate is provided with a side plate groove for sliding forward and backward for centering. The side plate groove is provided with a stop block for sliding left and right for centering.

[0005] The central axis of the pair of stops coincides with one center line of the bottom hole, and the center line of the side plate groove coincides with another center line of the bottom hole.

[0006] Based on the above, in order to guide the device before it enters the side plate groove, guide plates are respectively provided on the top two sides of the side plate groove, and the front and rear sides of the side plate groove are obliquely connected to the inner side of the corresponding guide plate to form front and rear centering oblique sides for sliding and centering.

[0007] Based on the above, in order to achieve centering both the top and bottom, the bottom inner side of the side plate groove is provided with a first left-right centering oblique edge, and the inner side of the stop block is provided with a second left-right centering oblique edge. The central axis of the pair of first left-right centering oblique edges and the central axis of the pair of second left-right centering oblique edges coincide with a center line of the bottom hole.

[0008] Based on the above, in order to improve the structural strength, a number of stiffening plates are respectively provided on the outer side of the side plate, wherein the upper part of a pair of stiffening plates is connected to the outer side wall of the stop block.

[0009] Based on the above, in order to facilitate installation and improve structural stability, the center of the bottom hole coincides with the center of the base plate.

[0010] Based on the above, for ease of installation, the specifications of the pair of side plates are the same, and the specifications of the plurality of guide plates are the same.

[0011] Based on the above, in order to facilitate movement and lifting, a pair of lifting rings are provided on each side plate, and the lifting rings are located at the upper ends of the side plate.

[0012] This utility model has substantial features and advancements compared to existing technologies. Specifically, the column outer cylinder body provided by this utility model is equipped with an automatic centering and anti-rotation device. A guide plate guides the column outer cylinder body to fall smoothly. The bottom hole completes the initial positioning of the column outer cylinder body into the automatic centering mechanism. After the trunnion enters the side plate groove, it completes the repositioning. That is, during the falling process, the oblique angle of the guide plate can be used to achieve front-to-back centering of the column outer cylinder body, and the left and right centering oblique edges of the side plates and the stop blocks are used respectively to achieve automatic left-to-right centering of the column outer cylinder body. This ensures the stability of the column outer cylinder body during the falling process and improves the centering accuracy of the column outer cylinder body.

[0013] Furthermore, during assembly, the guide sleeve needs to be tightened onto the outer cylinder body, at which point the outer cylinder body needs to be fixed within the mechanism. When the assembly machine tightens the guide sleeve, force is applied at four points, and the side stops and side plates on both sides will prevent the trunnion from rotating, thereby achieving the purpose of tightening the guide sleeve. At the same time, for different trunnion sizes, the side plate grooves and stops need to be specifically designed to ensure that the side plate grooves and stops can fix the trunnion, while ensuring that the column outer cylinder body falls smoothly and that the trunnion does not bump or collide during the fall. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of the top surface of the automatic centering and anti-rotation device for the column outer cylinder assembly provided by this utility model.

[0015] Figure 2 This is a side view of the overall structure of the automatic centering and anti-rotation device for the column outer cylinder assembly provided by this utility model.

[0016] Figure 3 This is a schematic diagram of the side plate structure in the automatic centering and anti-rotation device for the outer cylinder assembly of the column provided by this utility model.

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the stop block in the automatic centering and rotation stop device for assembling the outer cylinder of the column provided by this utility model.

[0018] Figure 5 This is a schematic diagram of the second stiffening plate structure in the automatic centering and anti-rotation device for the outer cylinder assembly of the column provided by this utility model.

[0019] In the diagram: 1. Base plate; 2. Lifting ring; 3. Side plate; 4. Guide plate; 5. First stiffening plate; 6. Second stiffening plate; 7. Stop block; 8. Bottom hole; 9. First left and right centering bevel; 10. Side plate groove; 11. Second left and right centering bevel. Detailed Implementation

[0020] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0021] Example 1

[0022] This embodiment provides an automatic centering and anti-rotation device for assembling the outer cylinder of a column, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the device includes a base plate 1 with a bottom hole 8 and a pair of side plates 3 disposed on the base plate 1. The side plates 3 are distributed on both sides of the bottom hole 8, and the center of each side plate 3 is provided with a side plate groove 10 for forward and backward sliding alignment. The side plate groove 10 is provided with a stop block 7 for left and right sliding alignment.

[0023] The central axis of the pair of stops 7 coincides with one center line of the bottom hole 8, and the center line of the side plate groove 10 coincides with another center line of the bottom hole 8.

[0024] In this embodiment, in order to guide the device before it enters the side plate groove 10, guide plates 4 are respectively provided on the top two sides of the side plate groove 10. The front and rear sides of the side plate groove 10 are obliquely connected to the inner side of the corresponding guide plate 4 to form front and rear centering oblique sides for sliding and centering.

[0025] Example 2

[0026] This embodiment provides an automatic centering and anti-rotation device for assembling the outer cylinder of a column. The main difference from Embodiment 1 is that, in this embodiment, to achieve centering both vertically and horizontally, the inner bottom edge of the side plate groove 10 is provided with a first left-right centering oblique edge 9. The inner edge of the stop block 7 is provided with a second left-right centering oblique edge 11. The central axis of the pair of first left-right centering oblique edges 9 and the central axis of the pair of second left-right centering oblique edges 11 coincide with a center line of the bottom hole 8.

[0027] Example 3

[0028] This embodiment provides an automatic centering and anti-rotation device for the outer cylinder assembly of a column. The main difference from Embodiment 1 is that, in this embodiment, to improve structural strength, several stiffening ribs are provided on the outer side of the side plate, with the upper part of a pair of stiffening ribs connected to the outer wall of the stop block. For ease of distinction, the stiffening ribs can be divided into a first stiffening rib 5 and a second stiffening rib 6. The bottom of the stop block is supported on the groove of the side plate.

[0029] Example 4

[0030] This embodiment provides an automatic centering and anti-rotation device for assembling the outer cylinder of the column. The main difference from Embodiment 1 is that, in this embodiment, in order to facilitate installation and improve structural stability, the center of the bottom hole 8 coincides with the center of the base plate 1.

[0031] Example 5

[0032] This embodiment provides an automatic centering and anti-rotation device for assembling the outer cylinder of a column. The main difference from Embodiment 1 is that, in this embodiment, for ease of installation, the pair of side plates 3 are of the same specification, and the plurality of guide plates 4 are of the same specification. For ease of movement and lifting, a pair of lifting rings 2 are respectively provided on the side plates 3, and the lifting rings 2 are located at the upper ends of the side plates 3.

[0033] Specifically, when assembling the column outer cylinder body using the automatic anti-rotation device provided by this utility model, the specific operation steps are as follows:

[0034] When the outer cylinder body is placed into the centering mechanism, it first contacts four guide plates 4, and the front-to-back centering of the cylinder is controlled by the slope of the guide plates 4. During the descent, it then contacts two stops 7, and the left-to-right centering of the cylinder body is adjusted by the slope formed by the second left-to-right centering slope 11 between a pair of stops 7. Finally, it falls onto the base plate 1 with the bottom hole 8. The bottom hole 8 on the base plate 1 matches the cylinder bottom arc of the outer cylinder body, thereby realizing the automatic centering function of the outer cylinder body.

[0035] When the guide sleeve is rotated under force, there are four stress points on the trunnions, side plates, and stops on both sides of the outer cylinder body. By utilizing the second and first stiffening plates welded to the back of the stops and side plates, the anti-rotation function of the cylinder body can be fully guaranteed.

[0036] Tests show that the automatic alignment and anti-rotation device for the outer cylinder assembly of the column provided by this utility model can increase the production efficiency by more than 80% in the automatic assembly production line of the column, thereby effectively avoiding quality problems such as damage to the column guide sleeve and seal damage during the alignment process, thus improving the quality and efficiency of automatic assembly.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and not to limit it; although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications can still be made to the specific implementation of this utility model or equivalent substitutions can be made to some technical features without departing from the spirit of the technical solution of this utility model, and all such modifications and substitutions should be covered within the scope of the technical solution claimed by this utility model.

Claims

1. An automatic centering and anti-rotation device for assembling an outer cylinder body of a column, characterized in that: It includes a base plate with a bottom hole and a pair of side plates disposed on the base plate. The side plates are distributed on both sides of the bottom hole. The center of each side plate has a side plate groove for sliding forward and backward for centering. The side plate groove is provided with a stop block for sliding left and right for centering. The central axis of the pair of stops coincides with one center line of the bottom hole, and the center line of the side plate groove coincides with another center line of the bottom hole.

2. The automatic centering and anti-rotation device for the outer cylinder assembly of the column according to claim 1, characterized in that: Guide plates are provided on both sides of the top of the side plate groove. The front and rear sides of the side plate groove are obliquely connected to the inner side of the corresponding guide plate to form front and rear centering oblique sides for sliding and centering.

3. The automatic centering and anti-rotation device for the outer cylinder body assembly of the column according to claim 1 or 2, characterized in that: The bottom inner side of the side plate groove is provided with a first left-right aligning oblique edge, and the inner side of the stop block is provided with a second left-right aligning oblique edge. The central axis of the pair of first left-right aligning oblique edges and the central axis of the pair of second left-right aligning oblique edges coincide with a center line of the bottom hole.

4. The automatic centering and anti-rotation device for the outer cylinder assembly of the column according to claim 1, characterized in that: Several stiffeners are provided on the outer side of the side plate, and the upper part of a pair of stiffeners is connected to the outer side wall of the block.

5. The automatic centering and anti-rotation device for the outer cylinder assembly of the column according to claim 1 or 2 or 4, characterized in that: The center of the bottom hole coincides with the center of the bottom plate.

6. The automatic centering and anti-rotation device for the outer cylinder assembly of the column according to claim 2, characterized in that: The side plates are identical in size, and the guide plates are identical in size.

7. The automatic centering and anti-rotation device for the outer cylinder assembly of the column according to claim 1, 2, 4, or 6, characterized in that: A pair of lifting rings are provided on each side plate, and the lifting rings are located at the upper two ends of the side plate.

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