Bellows-style internal protective structure with two-way composite motion
By adopting a bellows-style protective structure with bidirectional compound motion on the power head, the problem of isolation of the protective area under bidirectional motion is solved, achieving efficient closed protection in a confined space and reducing maintenance difficulty and cost.
Patent Information
- Application Number
- CN202522565538.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-03
- Publication Date
- 2026-11-06
- Estimated Expiration
- 2035-12-03
AI Technical Summary
Existing technologies struggle to achieve efficient protection on bidirectional moving heads, especially in confined spaces, where it is difficult to completely isolate the processing area from the protection area while maintaining low protection costs.
The internal protective structure adopts a bidirectional composite motion bellows-style structure, including sheet metal protective connectors, telescopic bellows covers, upper bellows covers, and lower bellows covers. The front and rear bellows covers, which are fixed at the front of the square tube, are embedded and superimposed with the power head to form a closed protection, and the various protective components are installed sequentially in a narrow space.
It achieves effective enclosed protection for the bidirectional moving power head in a confined space, ensuring complete isolation between the processing area and the protected area, reducing mud splashing, extending the cleaning cycle, and reducing maintenance difficulty.
Smart Images

Figure CN224939635U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of protection technology for processing power components, specifically relating to a bellows-style internal protection structure for bidirectional composite motion. Background Technology
[0002] In the internal processing area of photovoltaic silicon crystal production equipment, high-speed jets of water are often used to wash away the crystal dust generated during processing, thereby ensuring the continuity and efficiency of cutting and the smoothness of the cut surface. This creates a processing area with splashing black water and a porous surface. Internal protection is a barrier that immediately seals off this processing area and isolates it from the electromechanical equipment, while complying with the mechanical and electrical operation. When the requirements for this barrier are strict, it is necessary to achieve complete isolation between the processing area and the protected area, achieving a "watertight" effect.
[0003] Currently, the most common protection method for unidirectional, single-axis motion is the use of bellows-style telescopic protective covers. These covers compress the protected area into the internal space of the telescopic cover, while the space integrated between the outer side of each protective cover and the inner side of the equipment's external protection forms a continuous processing area. The advantages of this type of protection are its airtightness, completely isolating the electromechanical devices (including their moving parts) within the cover from the processing area, achieving the aforementioned "watertight" protection effect. Furthermore, this type of protective cover boasts advantages such as compact structure, standardized specifications, and low cost.
[0004] However, due to the precision and complexity of the equipment's electromechanical devices and its compact structure, when a bellows-style protective cover is used to protect a bidirectional moving power head, the composite structure of the cover, the connection method of the overlapping motions, and the installation and sequence of the protective components under the constraints of a small space present unique challenges to the above design arrangement and implementation. Utility Model Content
[0005] The purpose of this invention is to provide a bellows-style internal protective structure for bidirectional composite motion, which can completely isolate the processing area from the protective area to achieve efficient protection.
[0006] The specific technical solution adopted by this utility model is as follows: The accordion-style internal protective structure for bidirectional composite motion includes an equipment body assembly and sheet metal protective connectors. The sheet metal protective connectors include a partition wall fixing cover, a lower connector at the bottom of the partition wall fixing cover, a power head spindle inside the partition wall fixing cover, a spindle sleeve on the outside of the power head spindle, a power head bearing housing at the rear of the partition wall fixing cover, the spindle sleeve being fitted into the power head bearing housing, a slide assembly below the power head bearing housing, and an equipment component assembly on one side of the slide assembly. The power head main shaft is equipped with a telescopic bellows cover, a rear mounting frame assembly, an upper bellows cover, and a lower bellows cover on its outer side.
[0007] Furthermore, the telescopic accordion cover includes a telescopic accordion cover body, a fixed end flange, and a movable end flange. The telescopic accordion cover body is fixedly connected between the fixed end flange and the movable end flange. The fixed end flange is fixedly connected to the partition wall fixed cover. The telescopic accordion cover body has a U-shaped structure.
[0008] Furthermore, the rear mounting frame assembly includes a rear mounting frame, an L-shaped baffle, and a bellows cover slide rail. The moving end flange is fixedly connected to the rear mounting frame, the rear mounting frame is fixedly connected to the partition wall fixing cover, the L-shaped baffle is fixedly connected to the side wall of the rear mounting frame, the L-shaped baffle is located between the power head main shaft and the telescopic bellows cover, and the bellows cover slide rail is arranged between the L-shaped baffle and the power head main shaft.
[0009] Furthermore, the upper accordion cover includes an upper fixed flange, an upper accordion cover body, and an upper movable flange. The upper accordion cover body is fixedly connected between the upper fixed flange and the upper movable flange. The upper fixed flange is fixedly connected to the rear mounting frame. An upper semi-circular connecting plate is fixedly connected to the side wall of the upper movable flange. The upper semi-circular connecting plate is assembled on the upper side of the power head spindle.
[0010] Furthermore, the lower accordion cover includes a lower fixed flange, a lower accordion cover body, and a lower movable flange. The lower accordion cover body is fixedly connected between the lower fixed flange and the lower movable flange, and a lower semi-circular connecting plate is fixedly connected to the side wall of the lower fixed flange.
[0011] Furthermore, a water receiving tray is fixedly connected to the side wall of the lower movable flange.
[0012] The technical effects achieved by this utility model are as follows: This utility model's bidirectional composite motion accordion-style internal protective structure, through the cooperation of sheet metal protective connectors, telescopic accordion covers, upper accordion covers, and lower accordion covers, differs from the conventional accordion cover setup. This technical solution uses a square cylindrical, fixed-end front-mounted front and rear accordion covers to form a protective partition wall, and embeds and stacks the upper and lower accordion covers, which are then installed and connected to the power head. This allows for the sequential installation of various protective components within a limited layout space, meeting the closed protection requirements for the power head's front-to-back and up-and-down composite motion. Attached Figure Description
[0013] Figure 1 This is a perspective view of the present invention; Figure 2 This is a front view of the present invention; Figure 3 This is a utility model Figure 2 Sectional view at point AA; Figure 4 This is a utility model Figure 2 Sectional view at point BB; Figure 5 This is a utility model Figure 3 Enlarged view of point A in the image; Figure 6 This is a utility model Figure 3 Enlarged view of point B in the image; Figure 7 This is a utility model Figure 4 Enlarged view of point C in the image.
[0014] The attached diagram lists the components represented by each number as follows: 0. Equipment body assembly; 01. Power head spindle; 02. Spindle sleeve; 03. Slide assembly; 04. Power head bearing body; 05. Equipment component assembly; 1. Sheet metal protective connectors; 11. Partition wall fixing cover; 12. Lower connector; 2. Telescopic bellows cover; 21. Telescopic bellows cover body; 22. Fixed end flange; 23. Moving end flange; 3. Rear end mounting frame assembly; 31. Rear end mounting frame; 32. L-shaped baffle; 33. Bellows cover slide rail; 4. Upper bellows cover; 41. Upper fixed flange; 42. Upper bellows cover body; 43. Upper moving flange; 5. Lower bellows cover; 51. Lower fixed flange; 52. Lower bellows cover body; 53. Lower moving flange; 6. Upper semi-circular connecting plate; 7. Lower semi-circular connecting plate; 8. Water receiving tray. Detailed Implementation
[0015] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.
[0016] like Figures 1-7 As shown, the accordion-style internal protective structure for bidirectional composite motion includes a machine body assembly 0 and a sheet metal protective connector 1. The sheet metal protective connector 1 includes a partition wall fixing cover 11. A lower connector 12 is provided at the bottom of the partition wall fixing cover 11. A power head spindle 01 is provided inside the partition wall fixing cover 11. A spindle sleeve 02 is sleeved on the outside of the power head spindle 01. A power head bearing body 04 is provided at the rear of the partition wall fixing cover 11. The spindle sleeve 02 is assembled inside the power head bearing body 04. A slide assembly 03 is provided below the power head bearing body 04. A machine component assembly 05 is provided on one side of the slide assembly 03. The slide group 03 is a horizontal movement power facility, such as slide rails, lead screws and other drive methods; secondly, the equipment body group 0 can realize horizontal and vertical movement, and the equipment component group 05 is a load-bearing component used to enhance the overall strength.
[0017] A telescopic bellows cover 2, a rear end mounting frame set 3, an upper bellows cover 4 and a lower bellows cover 5 are arranged on the outer side of the power head spindle 01.
[0018] The telescopic bellows cover 2 includes a telescopic bellows cover body 21, a fixed end flange 22 and a movable end flange 23. The telescopic bellows cover body 21 is fixedly connected between the fixed end flange 22 and the movable end flange 23. The fixed end flange 22 is fixedly connected to the partition wall fixing cover 11, and the telescopic bellows cover body 21 is a loop-shaped structure.
[0019] The rear end mounting frame set 3 includes a rear end mounting frame 31, an L-shaped stop strip 32 and a bellows cover slideway 33. The movable end flange 23 is fixedly connected to the rear end mounting frame 31, the rear end mounting frame 31 is fixedly connected to the partition wall fixing cover 11, the L-shaped stop strip 32 is fixedly connected to the side wall of the rear end mounting frame 31, the L-shaped stop strip 32 is located between the power head spindle 01 and the telescopic bellows cover body 21, and the bellows cover slideway 33 is arranged between the L-shaped stop strip 32 and the power head spindle 01.
[0020] Herein, a set of front-rear telescopic telescopic bellows cover bodies 21 is adopted to form a wall-type partition, which completely isolates the processing area from the protection area. The telescopic bellows cover body 21 is a square cylinder-shaped cover body in a "loop" shape, the front end (in the inward feeding direction) of which is a fixed end, and the outer edges around the fixed end flange 22 are respectively and fixedly connected with the wall connecting pieces arranged at the upper, lower, left and right sides thereof; correspondingly, the rear end of the telescopic bellows cover body 21 is a movable end, and the movable end flange 23 is fixedly connected with the top surface and left and right sides of the power head bearing body 04 as well as the front end of the sliding table set 03 through the rear end mounting frame 31 in different connection forms that do not interfere with the movement, are easy to install and have a reasonable installation sequence; the square hole in the middle of the "loop"-shaped telescopic bellows cover body 21 is the outer side of the telescopic bellows cover body 21, which is the contact interface with the processing area, and the power head spindle 01 protrudes from the middle position of the square hole and performs up-and-down reciprocating motion driven by the mechanical device of the equipment.
[0021] The upper bellows cover includes an upper fixed flange 41, an upper bellows cover body 42 and an upper movable flange 43. The upper bellows cover body 42 is fixedly connected between the upper fixed flange 41 and the upper movable flange 43. The upper fixed flange 41 is fixedly connected to the rear end mounting frame 31, an upper semicircular connecting plate 6 is fixedly connected to the side wall of the upper movable flange 43, and the upper semicircular connecting plate 6 is assembled on the upper side of the power head spindle 01.
[0022] The lower bellows cover 5 includes a lower fixed flange 51, a lower bellows cover body 52 and a lower movable flange 53. The lower bellows cover body 52 is fixedly connected between the lower fixed flange 51 and the lower movable flange 53. A lower semicircular connecting plate 7 is fixedly connected to the side wall of the lower fixed flange 51. A water receiving tray 8 is fixedly connected to the side wall of the lower movable flange 53.
[0023] In this scheme, based on the goal of complete enclosure and the bidirectional compound superposition of motion, an upper accordion cover 4 and a lower accordion cover 5 are installed above and below the main shaft 01 of the power head, respectively. Their covers are embedded in the square holes of the telescopic accordion cover 21. The upper accordion cover 4 and the lower accordion cover 5 are both movable at the end facing the center of the power head, and are connected to the main shaft 01 of the power head through an upper semi-circular connecting plate 6 or a lower semi-circular connecting plate 7 fixed on the main shaft sleeve 02. The fixed ends of the upper accordion cover 4 and the lower accordion cover 5 are respectively connected to the movable end flange of the telescopic accordion cover 21. This structural arrangement allows the upper accordion cover 4 and the lower accordion cover 5 to reciprocate up and down while the telescopic accordion cover 21 reciprocates back and forth under the pull of the main shaft 01 of the power head.
[0024] To achieve the desired sealing effect, it is crucial to carefully design the sealing structures at the boundaries of each protective component and the gaps between their movements. Therefore, a pair of L-shaped baffles 32 are symmetrically welded to both sides of the front face of the rear mounting frame 31. The L-shaped baffles 32 extend from the gaps between the sides of the inner square opening of the telescopic accordion cover 21 and the sides of the upper accordion cover 4 and the lower accordion cover 5. The short sides of the "L"-shaped corners cover the outer corners of the upper accordion cover 4 and the lower accordion cover 5. Together with the upper and lower accordion slides installed on the front edges of the two sides of the rear mounting frame 31, and the "Z"-shaped bends on both sides of the upper and lower semi-circular connecting plates, they form a multi-turn, labyrinthine sealing structure between the upper and lower accordion sides and the inner side of the telescopic accordion cover 21. This structure can completely block the high-speed splashed mud from being protected during complex movements.
[0025] To reduce the accumulation of mud on the bottom surface of the square opening of the telescopic bellows cover 21, a removable scoop-type water receiving tray 8 is fastened to the bottom surface of the fixed end of the lower bellows cover 5. This tray can catch most of the mud washed down from the main shaft 01 of the power head and the protective surfaces of the upper and lower bellows covers, thus extending the cleaning cycle of the mud deposited on the telescopic bellows cover 21. It also makes disassembly, maintenance and cleaning more convenient.
[0026] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.
Claims
1. A concertinaed internal protective structure for bidirectional composite movement, characterised in that: The equipment includes a body assembly (0) and a sheet metal protective connector (1). The sheet metal protective connector (1) includes a partition wall fixing cover (11). A lower connector (12) is provided at the bottom of the partition wall fixing cover (11). A power head spindle (01) is provided inside the partition wall fixing cover (11). A spindle sleeve (02) is sleeved on the outside of the power head spindle (01). A power head bearing body (04) is provided on the rear side of the partition wall fixing cover (11). The spindle sleeve (02) is assembled inside the power head bearing body (04). A slide assembly (03) is provided on the lower side of the power head bearing body (04). An equipment component assembly (05) is provided on one side of the slide assembly (03). The power head spindle (01) is provided with a telescopic accordion cover (2), a rear mounting frame assembly (3), an upper accordion cover (4), and a lower accordion cover (5) on its outer side.
2. The accordion-style internal protective structure with bidirectional composite motion according to claim 1, characterized in that: The telescopic accordion cover (2) includes a telescopic accordion cover body (21), a fixed end flange (22), and a movable end flange (23). The telescopic accordion cover body (21) is fixedly connected between the fixed end flange (22) and the movable end flange (23). The fixed end flange (22) is fixedly connected to the partition wall fixed cover (11). The telescopic accordion cover body (21) has a U-shaped structure.
3. The accordion-style internal protective structure with bidirectional composite motion according to claim 2, characterized in that: The rear mounting frame assembly (3) includes a rear mounting frame (31), an L-shaped baffle (32), and a bellows cover slide (33). The moving end flange (23) is fixedly connected to the rear mounting frame (31). The rear mounting frame (31) is fixedly connected to the partition wall fixing cover (11). The L-shaped baffle (32) is fixedly connected to the side wall of the rear mounting frame (31). The L-shaped baffle (32) is located between the power head spindle (01) and the telescopic bellows cover (21). The bellows cover slide (33) is set between the L-shaped baffle (32) and the power head spindle (01).
4. The accordion-style internal protective structure with bidirectional composite motion according to claim 3, characterized in that: The upper accordion cover includes an upper fixed flange (41), an upper accordion cover body (42), and an upper movable flange (43). The upper accordion cover body (42) is fixedly connected between the upper fixed flange (41) and the upper movable flange (43). The upper fixed flange (41) is fixedly connected to the rear mounting frame (31). The upper movable flange (43) has an upper semi-circular connecting plate (6) fixedly connected to its side wall. The upper semi-circular connecting plate (6) is mounted on the upper side of the power head spindle (01).
5. The accordion-style internal protective structure with bidirectional composite motion according to claim 1, characterized in that: The lower accordion cover (5) includes a lower fixed flange (51), a lower accordion cover body (52) and a lower movable flange (53). The lower accordion cover body (52) is fixedly connected between the lower fixed flange (51) and the lower movable flange (53). A lower semi-circular connecting plate (7) is fixedly connected to the side wall of the lower fixed flange (51).
6. The accordion-style internal protective structure with bidirectional composite motion according to claim 5, characterized in that: A water receiving tray (8) is fixedly connected to the side wall of the lower movable flange (53).
