Anti-rotation spraying sling chain

Abstract

The utility model relates to a spraying sling chain, in particular to an anti-rotation spraying sling chain, and aims to solve the problems that when an existing spraying sling chain and a front power take-off box type gearbox are used for assembling, a front power take-off gearbox needs to be hung for paint spraying on a paint spraying line, then a gearbox needs to be hung for paint spraying on the paint spraying line, then off-line combined assembling is carried out, and paint repairing is carried out after combined assembling, so that the whole process is very tedious, and the working efficiency is high. And a large amount of cost and time are wasted. The lifting chain comprises a lifting chain main body and an anti-rotation tool which is detachably connected with the lifting chain main body, the sling chain body comprises a connecting seat, a rotating disc and a lower connecting rod, a hole cavity is formed in the connecting seat, the rotating disc is rotatably connected to the lower portion of the connecting seat, and the lower connecting rod is fixedly connected to the lower portion of the rotating disc; the anti-rotation tool comprises an upper insertion rod, a lower insertion rod and a vertical rod; the upper inserting rod is vertically connected to the top of the vertical rod, the lower inserting rod comprises a tailstock part and a pair of blocking arm parts oppositely arranged on the front side of the tailstock part, the tailstock part is connected to the middle of the vertical rod, and the lower inserting rod is located under the upper inserting rod.

Description

Technical Field

[0001] This utility model relates to a spray painting suspension chain, specifically an anti-rotation spray painting suspension chain. Background Technology

[0002] The cleaning and painting of the transmission assembly is a key process in manual transmissions. The transmission needs to be cleaned, dried and painted in sequence on the painting line. Currently in the machinery industry, the transmission painting line can be divided into two types according to the transmission's entry posture: vertical posture and horizontal posture. In order to achieve compatibility with all products, the internal cavity of the painting line must be able to cover all product sizes.

[0003] For vertical painting lines, the gearbox is suspended from the painting line's lifting chain via a single point. Existing vertical painting lines typically use a rotating disc structure for this lifting chain, which allows the gearbox to rotate continuously during painting. However, the front take-off (PTO) gearbox of heavy-duty trucks is a rare and special structure with significant width variations in different directions. Using existing painting chains to suspend the PTO gearbox presents a problem: when the gearbox passes through the cleaning and drying channels on the painting line, the limited width of these channels causes interference with the rotation of the gearbox, preventing it from passing. Expanding the space to accommodate one product would be extremely costly. Therefore, using existing painting chains, the assembly process for the PTO gearbox requires first suspending it on the painting line for painting, then suspending it on the painting line for painting again, followed by offline assembly, and finally touch-up painting. This entire process is extremely cumbersome and wastes considerable time and resources.

[0004] Chinese invention patent application CN107297292A discloses a paint spraying suspension device, including a guide rail and a trolley. A roller is mounted on the top inner side of the trolley, a bracket is mounted on the bottom of the trolley, a top rod is mounted on the bottom of the bracket, and a sleeve is fitted onto the bottom outer wall of the top rod. A insertion rod is mounted on the left end of a baffle, and a slot is provided on the right outer wall of the top rod. Support rods are mounted on both sides of the bottom of the sleeve, and hooks are mounted on the bottom of the support rods. This paint spraying suspension device, through the cooperation of the trolley, insertion rod, and slot, allows the trolley to slide left and right at the bottom of the guide rail. Pulling the handle to the right moves the pull rod to the right, causing the pull rod to disengage from the slot to the right via the baffle. The sleeve can move up and down on the outer wall of the top rod to adjust the height of the hook. Releasing the handle causes the first compression spring to move the baffle to the left, inserting the insertion rod into the slot to the left, and the sleeve is fixed. The height adjustment of the hook is convenient and meets the user's needs. However, this paint spraying suspension device cannot meet the requirement that the front PTO gearbox needs to rotate continuously during the painting process. Utility Model Content

[0005] The purpose of this utility model is to solve the technical problem that when using existing spray painting chains, the front take-off gearbox type gearbox needs to be painted first by hanging it on the front take-off gearbox paint line, then on the gearbox paint line, and then assembled offline, and then touched up with paint. The whole process is very cumbersome and wastes a lot of cost and time. The present invention provides an anti-rotation spray painting chain.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A type of anti-rotation spray painting chain, characterized by:

[0008] Includes the main body of the lifting chain and an anti-rotation fixture detachably connected to the main body of the lifting chain;

[0009] The main body of the suspension chain includes a connecting seat, a rotating disk, and a lower connecting rod. The connecting seat has a cavity with an opening facing the side. The rotating disk is rotatably connected to the bottom of the connecting seat, and the lower connecting rod is fixedly connected to the bottom of the rotating disk. The lower connecting rod is used to suspend the gearbox.

[0010] The anti-rotation fixture includes an upper insert rod, a lower insert rod, and a vertical rod;

[0011] The upper insertion rod is vertically connected to the top of the upright, and the lower insertion rod includes a tailstock and a pair of stop arms disposed opposite to each other on the front side of the tailstock. The tailstock is connected to the middle of the upright, and the lower insertion rod is located directly below the upper insertion rod.

[0012] The upper insertion rod is used to be detachably inserted into the cavity, and a pair of stop arms are used to lock on both sides of the lower connecting rod to limit the relative rotation between the rotating disk and the connecting seat.

[0013] Furthermore, the upright includes an upper pole section, a ring section, and a lower pole section connected sequentially from top to bottom;

[0014] The upper end of the upper rod is fixedly connected to the upper insert rod. Multiple teeth are evenly distributed around the circumference of the rotating disk. The plane of the ring sleeve is perpendicular to the axis of the upper insert rod. The ring sleeve is used to fit onto the teeth on the circumference of the rotating disk to limit the relative rotation between the rotating disk and the connecting seat. The tailstock is fixedly connected to the upper part of the lower rod.

[0015] Furthermore, the axes of both stop arms are parallel to the axis of the upper insert rod.

[0016] Furthermore, the front end of the upper insertion rod is provided with a guide cone surface that is smaller at the front and larger at the back.

[0017] Furthermore, the upper insertion rod is welded and fixed to the upper rod section, and the tailstock section is welded and fixed to the lower rod section.

[0018] Furthermore, a insertion hole is provided on the lower rear end of the upper insertion rod, and the upper end of the upper rod is inserted into the insertion hole; a through hole is provided on the tailstock, and the lower rod passes through the through hole.

[0019] Furthermore, a mesh pattern is provided on the lower outer periphery of the lower rod.

[0020] Furthermore, the connector includes an upper connector and a lower connector;

[0021] The upper connector has an inverted U-shaped cross section. The U-shaped groove of the inverted U-shaped structure forms a cavity, through which the conveyor chain of the paint spraying line can pass. The horizontal shaft fixed to the lower part of the upper connector passes through the U-shaped groove of the inverted U-shaped structure, and the lower connector is hung on the horizontal shaft.

[0022] The rotating disk is rotatably connected to the lower connector below.

[0023] Furthermore, the main body of the chain also includes a vertical shaft and a nut. The vertical shaft passes through the rotating disk from bottom to top, and is connected to the nut at the bottom of the lower connector. A bearing is provided between the vertical shaft and the rotating disk. The lower connecting rod is U-shaped.

[0024] The advantages of this utility model compared to the prior art are:

[0025] 1. The anti-rotation spraying chain of this utility model has a rotating disk of the main body of the chain that can rotate relative to the connecting seat, which can meet the requirement that the front take-off gearbox needs to rotate continuously during the spraying process;

[0026] 2. The anti-rotation spraying chain of this utility model is equipped with an anti-rotation fixture that is detachably connected to the main body of the chain. The anti-rotation fixture can quickly position and lock the main body of the chain, restricting the relative rotation between the rotating disk and the connecting seat. This allows the front take-off gearbox to maintain its posture during the cleaning and drying process without rotating. This satisfies the requirements for painting the front take-off gearbox and also facilitates quick installation and disassembly by on-site operators to achieve the purpose of assembly.

[0027] 3. The anti-rotation spraying chain of this utility model solves the problem of painting the front take-off gearbox, effectively reducing unnecessary workload, alleviating the labor intensity of workers, and greatly improving the convenience and precision of workers' operation. Attached Figure Description

[0028] Figure 1 This is a three-dimensional structural diagram of the anti-rotation tooling in an embodiment of an anti-rotation spraying chain according to this utility model;

[0029] Figure 2 This is a side view of the anti-rotation tooling in an embodiment of an anti-rotation spraying chain according to the present invention;

[0030] Figure 3 This is a cross-sectional view of the upper insert rod in an embodiment of an anti-rotation spray coating suspension chain of this utility model;

[0031] Figure 4This is a top view of the lower insert rod in an embodiment of the anti-rotation spray coating suspension chain of this utility model;

[0032] Figure 5 This is a schematic diagram of the structure of the upright in an embodiment of an anti-rotation spray coating suspension chain of this utility model;

[0033] Figure 6 This is a schematic diagram of the main body of the suspension chain in an embodiment of the anti-rotation spray-coated suspension chain of this utility model.

[0034] The annotations in the attached figures are explained as follows:

[0035] 1-Upper insert rod, 11-Guide cone surface, 12-Insertion hole, 2-Lower insert rod, 21-Stop arm, 22-Tail seat, 221-Through hole, 3-Upright rod, 31-Upper rod, 32-Ring sleeve, 33-Lower rod, 4-Connecting seat, 41-Upper connector, 42-Lower connector, 43-Cavity, 44-Horizontal shaft, 5-Rotating disk, 6-Lower connecting rod, 7-Vertical shaft, 8-Nut. Detailed Implementation

[0036] To make the objectives, advantages and features of this utility model clearer, the following describes in further detail an anti-rotation spray coating suspension chain proposed by this utility model in conjunction with the accompanying drawings and specific embodiments.

[0037] Reference Figure 1 and Figure 6 This utility model relates to an anti-rotation spraying chain, which includes a chain body and an anti-rotation fixture detachably connected to the chain body.

[0038] like Figure 6 As shown, the main body of the hanging chain includes a connecting seat 4, a rotating disk 5, a lower connecting rod 6, a vertical shaft 7, and a nut 8. The connecting seat 4 includes an upper connecting member 41 and a lower connecting member 42. The upper connecting member 41 has an inverted U-shaped cross-section, and the U-shaped groove of the inverted U-shaped structure forms a cavity 43, through which the conveyor chain of the painting line can pass. The horizontal shaft 44, which is fixed to the lower part of the upper connecting member 41, passes through the U-shaped groove of the inverted U-shaped structure. The lower connecting member 42 is hung on the horizontal shaft 44. The vertical shaft 7 passes through the rotating disk 5 from bottom to top, and is connected to the nut 8 at the lower part of the lower connecting member 42. A bearing is provided between the vertical shaft 7 and the rotating disk 5, so that the rotating disk 5 is rotatably connected to the lower part of the lower connecting member 42. Multiple teeth are evenly distributed around the circumference of the rotating disk 5. The lower connecting rod 6 is U-shaped and is fixedly connected to the lower part of the rotating disk 5. The lower connecting rod 6 is used to hang the gearbox. The rotating disk 5 is rotatable relative to the connecting seat 4, which can meet the requirement that the front power take-off gearbox needs to rotate continuously during the painting process.

[0039] like Figure 2 , Figure 3 , Figure 5 and Figure 6As shown, the anti-rotation fixture includes an upper insert rod 1, a lower insert rod 2, and a vertical rod 3. The vertical rod 3 includes an upper rod portion 31, a ring portion 32, and a lower rod portion 33 connected sequentially from top to bottom. The upper insert rod 1 is vertically connected to the top of the vertical rod 3 and is used for detachable insertion into the cavity 43. A insertion hole 12 is provided on the lower side of the rear end of the upper insert rod 1. The upper end of the upper rod portion 31 is inserted into the insertion hole 12, and the upper insert rod 1 is welded and fixed to the upper rod portion 31. The setting of the insertion hole 12 can make the connection between the upper insert rod 1 and the vertical rod 3 more secure and reliable. The front end of the upper insert rod 1 is provided with a guide cone surface 11 that is smaller at the front and larger at the back, which facilitates the insertion of the upper insert rod 1 into the cavity 43. Figure 2 , Figure 4 , Figure 5 and Figure 6 As shown, the lower insert rod 2 includes a tailstock 22 and a pair of stop arms 21 oppositely arranged on the front side of the tailstock 22. The tailstock 22 is provided with a through hole 221. The upper part of the lower rod 33 passes through the through hole 221, and the tailstock 22 and the lower rod 33 are welded and fixed. The through hole 221 can make the connection between the lower insert rod 2 and the upright rod 3 more secure and reliable. The pair of stop arms 21 are used to respectively lock on both sides of the lower connecting rod 6 to limit the relative rotation between the rotating disk 5 and the connecting seat 4. The axes of the pair of stop arms 21 are parallel to the axis of the upper insert rod 1, and the lower insert rod 2 is located directly below the upper insert rod 1. The plane of the ring sleeve 32 is perpendicular to the axis of the upper insert rod 1. The ring sleeve 32 is used to fit on the teeth on the periphery of the rotating disk 5 to limit the relative rotation between the rotating disk 5 and the connecting seat 4. The ring sleeve 32 can also play a role in avoiding rotation and help prevent the anti-rotation tooling from falling off. The anti-rotation fixture uses a long upright pole, making it convenient for workers to install and disassemble the fixture while standing on the ground. The lower end of the lower pole 33 has a mesh pattern on its outer periphery for easy hand gripping. When assembling the anti-rotation fixture, first insert the upper end of the upper pole 31 of the upright pole 3 into the insertion hole 12, and then insert the lower pole 33 of the upright pole 3 into the through hole 221. After adjusting the relative positions of the upper insertion rod 1, the lower insertion rod 2, and the upright pole 3, weld the upright pole 3 to the upper insertion rod 1 and the lower insertion rod 2 respectively.

[0040] When it is necessary to restrict the relative rotation between the rotating disk 5 and the connecting seat 4, the upper insert rod 1 is inserted into the cavity 43, and a pair of stop arms 21 are respectively locked on both sides of the lower connecting rod 6. At the same time, the ring sleeve 32 is fitted onto the teeth on the periphery of the rotating disk 5, thus forming an upper and lower lock to prevent the rotating disk 5 from rotating relative to the connecting seat 4. When it is not necessary to restrict the relative rotation between the rotating disk 5 and the connecting seat 4, the anti-rotation fixture can be removed horizontally. The anti-rotation fixture can quickly position and lock the main body of the lifting chain, restricting the relative rotation between the rotating disk 5 and the connecting seat 4, so that the front PTO gearbox can maintain its posture when it is on the line during the cleaning and drying process, and thus can pass smoothly through the cleaning and drying channel. By detecting the front PTO gearbox's posture before and after passing through the cleaning and drying channel, the stability and security of the anti-rotation fixture can be checked, thus ensuring that the assembly meets the process requirements.

[0041] This utility model of an anti-rotation spray painting chain solves the problem of painting the front take-off gearbox, effectively reducing unnecessary workload, alleviating the labor intensity of workers, and greatly improving the convenience and precision of worker operation.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the specific technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of this utility model.

Claims

1. An anti-rotation spray coating suspension chain, characterized in that: Includes the main body of the lifting chain and an anti-rotation fixture detachably connected to the main body of the lifting chain; The main body of the suspension chain includes a connecting seat (4), a rotating disk (5) and a lower connecting rod (6). The connecting seat (4) is provided with a cavity (43) with the opening facing the side. The rotating disk (5) is rotatably connected to the bottom of the connecting seat (4). The lower connecting rod (6) is fixedly connected to the bottom of the rotating disk (5). The lower connecting rod (6) is used to suspend the gearbox. The anti-rotation fixture includes an upper insert rod (1), a lower insert rod (2), and a vertical rod (3); The upper insertion rod (1) is vertically connected to the top of the upright (3). The lower insertion rod (2) includes a tail seat (22) and a pair of stop arms (21) opposite to each other on the front side of the tail seat (22). The tail seat (22) is connected to the middle of the upright (3), and the lower insertion rod (2) is located directly below the upper insertion rod (1). The upper insert rod (1) is detachably inserted into the cavity (43), and a pair of the stop arms (21) are respectively positioned on both sides of the lower connecting rod (6) to limit the relative rotation between the rotating disk (5) and the connecting seat (4).

2. The anti-rotation spray-coated lifting chain according to claim 1, characterized in that: The upright (3) includes an upper pole part (31), a ring part (32) and a lower pole part (33) connected from top to bottom; The upper end of the upper rod (31) is fixedly connected to the upper insert rod (1). The rotating disk (5) has multiple teeth evenly distributed around its circumference. The plane of the ring sleeve (32) is perpendicular to the axis of the upper insert rod (1). The ring sleeve (32) is used to fit onto the teeth on the circumference of the rotating disk (5) to restrict the relative rotation between the rotating disk (5) and the connecting seat (4). The tail seat (22) is fixedly connected to the upper part of the lower rod (33).

3. The anti-rotation spray coating chain according to claim 2, characterized in that: The axes of both of the aforementioned arm portions (21) are parallel to the axis of the upper insert rod (1).

4. The anti-rotation spray coating chain according to claim 3, characterized in that: The front end of the upper insertion rod (1) is provided with a guide cone surface (11) that is smaller at the front and larger at the back.

5. The anti-rotation spray coating chain according to claim 3, characterized in that: The upper insertion rod (1) is welded and fixed to the upper rod part (31), and the tail seat part (22) is welded and fixed to the lower rod part (33).

6. The anti-rotation spray coating chain according to claim 5, characterized in that: The lower rear end of the upper rod (1) is provided with a insertion hole (12), and the upper end of the upper rod (31) is inserted into the insertion hole (12); the tailstock (22) is provided with a through hole (221), and the lower rod (33) passes through the through hole (221).

7. The anti-rotation spray coating chain according to claim 3, characterized in that: The lower end of the lower rod (33) is provided with a mesh pattern.

8. The anti-rotation spray coating chain according to claim 1, characterized in that: The connecting seat (4) includes an upper connecting member (41) and a lower connecting member (42); The upper connector (41) has an inverted U-shaped cross section, and the U-shaped groove of the inverted U-shaped structure forms the cavity (43). The cavity (43) allows the conveyor chain of the paint spraying line to pass through. The horizontal shaft (44) fixed to the lower part of the upper connector (41) passes through the U-shaped groove of the inverted U-shaped structure, and the lower connector (42) is hung on the horizontal shaft (44). The rotating disk (5) is rotatably connected below the lower connector (42).

9. The anti-rotation spray coating chain according to claim 8, characterized in that: The main body of the hanging chain also includes a vertical shaft (7) and a nut (8). The vertical shaft (7) passes through the rotating disk (5) and the lower part of the lower connector (42) from bottom to top and is connected to the nut (8). A bearing is provided between the vertical shaft (7) and the rotating disk (5). The lower connecting rod (6) is U-shaped.

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