A paint spraying device for producing a gear ring of a gearbox

By combining a partitioned spray painting device and a positional restriction device, the problem of workpieces being unable to move during the air drying process of the spray painting device was solved, achieving a highly efficient and uniform spray painting effect and improving processing efficiency and quality.

CN224321695UActive Publication Date: 2026-06-05CHONGQING HUAYI XINGSHENG MACHINERY CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING HUAYI XINGSHENG MACHINERY CO LTD
Filing Date
2025-06-30
Publication Date
2026-06-05

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Abstract

The utility model belongs to gearbox paint spraying technical field, concretely relates to a paint spraying equipment for gearbox steel ring gear production, including main body platform, the top fixed connection of main body platform has the containing frame, the inner wall fixed connection of containing frame has the isolating plate, the inner wall bottom of containing frame is provided with the gear ring main part, the inner wall bottom of containing frame is provided with fixed assembly, the top of main body platform is provided with the compartmented paint spraying device, the compartmented paint spraying device includes the hanging position frame, the bottom rotation connection of hanging position frame is in the top of main body platform, the inner wall bottom fixed connection of hanging position frame has main rotary lever. The utility model has solved the existing paint spraying device when carrying out paint spraying operation to workpiece, needs to carry out air drying after finishing painting, and workpiece cannot carry out position movement in the air drying process, leads to the processing efficiency of workpiece to be very low problem, thereby improved the processing efficiency of device.
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Description

Technical Field

[0001] This utility model belongs to the field of gearbox painting technology, specifically relating to a painting equipment for the production of gearbox steel ring gears. Background Technology

[0002] Transmission steel ring gears are crucial transmission components in automotive transmissions, and their surface treatment processes significantly impact their lifespan and performance. Painting, a common surface treatment method, is widely used for rust prevention, corrosion protection, and aesthetic enhancement of steel ring gears. However, with the continuous development of production automation, traditional painting processes are increasingly unable to meet the requirements of mass production, quality stability, and environmental protection. Therefore, developing efficient, automated, and environmentally friendly transmission steel ring gear painting equipment is particularly important. High performance requirements: Transmission steel ring gears need to possess excellent wear resistance, corrosion resistance, and high strength. To achieve these requirements, the surface coating is crucial. The paint coating not only improves the appearance of the gear but also enhances its wear resistance and corrosion resistance. With the rapid development of the automotive industry, the production scale of transmissions is constantly expanding, and the production volume of steel ring gears is also increasing year by year. Therefore, the production process requires more efficient and automated equipment to ensure high output and consistent quality.

[0003] Patent publication number CN115487963B discloses a painting equipment and its method for producing gearbox bodies, including a left conveyor belt for feeding the gearbox housing on the left and a right conveyor belt for feeding the gearbox housing on the right. This patent utilizes a rotating rotating ring along an arc support. The gear ring on the rotating ring drives the gear disc and shaft on the moving seat to rotate, and along a rocker arm, causes the locked gearbox housing to rotate horizontally, allowing it to be fully exposed to the paint spray head for painting. Simultaneously, the rotating gear disc crawls along the gear ring on the fixed ring, causing the moving seat to revolve around the fixed ring, rotating ring, and ring edge, thereby driving the gearbox housing to rotate vertically. By continuously changing the gearbox's angle position, the painting position changes three-dimensionally, reducing the generation of painting dead angles and achieving excellent painting results, making it highly practical.

[0004] However, the current painting equipment and its usage methods used in gearbox body production have the following problems: When the existing painting equipment is used to paint the workpiece, it needs to be air-dried after the paint is applied. However, the workpiece cannot be moved during the air-drying process, which results in very low processing efficiency. Therefore, we propose a painting equipment for the production of gearbox steel ring gears. Utility Model Content

[0005] The purpose of this invention is to provide a painting equipment for the production of gearbox steel ring gears, which can solve the problem that the existing painting equipment in the related technology has very low processing efficiency when painting workpieces. After the paint is applied, the workpiece needs to be dried, and the workpiece cannot be moved during the drying process.

[0006] The specific technical solution adopted by this utility model is as follows:

[0007] A painting device for producing gearbox steel ring gears includes a main platform. A receiving frame is fixedly connected to the top of the main platform. An isolation plate is fixedly connected to the inner wall of the receiving frame. The gear ring body is disposed at the bottom of the inner wall of the receiving frame. A fixing component is disposed at the bottom of the inner wall of the receiving frame. A partitioned painting device is disposed on the top of the main platform. The partitioned painting device includes a hanging frame. The bottom of the hanging frame is rotatably connected to the top of the main platform. A main rotating rod is fixedly connected to the bottom of the inner wall of the hanging frame. An adjusting plate is fixedly connected to the bottom of the main rotating rod. A driving component is disposed on the top of the adjusting plate. A square and round spray gun is fixedly connected to the driving end of the driving component.

[0008] The drive assembly includes a drive motor, the bottom of which is fixedly connected to the top of the adjustment plate. The output shaft of the drive motor is fixedly connected to an electric telescopic rod. The telescopic end of the electric telescopic rod is fixedly connected to a rotating plate. The top of the square spray gun is fixedly connected to the bottom of the rotating plate. A paint storage tank is fixedly connected to the top of the rotating plate. A booster pump is fixedly connected to the top of the paint storage tank. A dust removal scraper is fixedly connected to the outer wall of the rotating plate. The rotating plate is the drive end of the drive assembly.

[0009] The fixing component includes a central column, the bottom of which is fixedly connected to the bottom of the inner wall of the receiving frame, and four electric push rods are fixedly connected to the outer wall of the central column. Each of the four electric push rods has a fastening pad fixedly connected to its telescopic end.

[0010] The dust removal scraper is made of a high-toughness, smooth material, and the top of the toothed ring body is located on the movement trajectory of the bottom of the dust removal scraper.

[0011] The bottom of the inner wall of the hanging frame is provided with an orientation limiting device, which includes an elastic telescopic rod. The fixed end of the elastic telescopic rod is fixedly connected to the bottom of the inner wall of the hanging frame, and the telescopic end of the elastic telescopic rod is fixedly connected to a limiting arc block. The top of the adjusting plate is provided with a limiting groove.

[0012] The bottom of the limiting arc block is curved, and the inner diameter of the limiting groove is equal to the outer diameter of the limiting arc block.

[0013] The bottom arc surface of the limiting arc block is located on the movement trajectory of the top of the adjusting plate, and the inner wall of the limiting groove is located on the movement trajectory of the outer wall of the limiting arc block.

[0014] The technical effects achieved by this utility model are as follows:

[0015] This invention utilizes a segmented painting device that integrates a hanging frame, main rotating rod, adjusting plate, drive motor, electric telescopic rod, rotating plate, square and round spray gun, paint storage tank, booster pump, and dust removal scraper. The output shaft of the drive motor rotates, causing the electric telescopic rod to rotate, which in turn causes the rotating plate to rotate. This rotation of the rotating plate causes the square and round spray gun and the dust removal scraper to rotate around the center point of the gear ring body. This allows the dust removal scraper to remove dust from the surface of the gear ring body before painting, ensuring a better paint finish. By rotating the main rotating rod, the segmented painting device can perform segmented painting on the gear ring body in different positions and within different accommodating frames, thereby improving the overall processing efficiency of the device.

[0016] This invention utilizes a positioning limiting device to coordinate the elastic telescopic rod, the limiting arc block, and the limiting groove. The surface of the adjusting plate first contacts the arc surface of the limiting arc block, causing the limiting arc block to move towards the hanging frame under the force of the adjusting plate. When the limiting groove moves and aligns with the limiting arc block, the limiting arc block is no longer subjected to the force of the adjusting plate. At this point, it moves away from the hanging frame under the elastic force of the elastic telescopic rod, thus locking the limiting arc block and the limiting groove together. This further restricts the basic position of the partitioned spray painting device, preventing errors in the spray painting operation due to positional deviation. Attached Figure Description

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

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

[0019] Figure 3 This is a schematic diagram of the structure of the hanging bracket of this utility model;

[0020] Figure 4 This is a utility model Figure 3 A magnified schematic diagram of the structure at point A in the middle;

[0021] Figure 5 This is a schematic diagram of the structure at the limiting arc block of this utility model.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1. Main platform; 2. Receiving frame; 3. Isolation plate; 4. Gear ring main body; 5. Fixing components; 51. Central column; 52. Electric push rod; 53. Fastening pad; 6. Separated spray painting device; 61. Hanging frame; 62. Main rotating rod; 63. Adjusting plate; 64. Drive motor; 65. Electric telescopic rod; 66. Rotating plate; 67. Square and round spray gun; 68. Paint storage tank; 69. Booster pump; 610. Dust removal scraper; 7. Orientation limiting device; 71. Elastic telescopic rod; 72. Limiting arc block; 73. Limiting groove. Detailed Implementation

[0024] 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.

[0025] like Figure 1-5 As shown, a painting equipment for producing gearbox steel ring gears includes a main platform 1, a receiving frame 2 fixedly connected to the top of the main platform 1, an isolation plate 3 fixedly connected to the inner wall of the receiving frame 2, a gear ring body 4 provided at the bottom of the inner wall of the receiving frame 2, a fixing component 5 provided at the bottom of the inner wall of the receiving frame 2, a partitioned painting device 6 provided at the top of the main platform 1, the partitioned painting device 6 includes a hanging frame 61, the bottom of the hanging frame 61 is rotatably connected to the top of the main platform 1, a main rotating rod 62 fixedly connected to the bottom of the inner wall of the hanging frame 61, an adjusting plate 63 fixedly connected to the bottom of the main rotating rod 62, a driving component provided at the top of the adjusting plate 63, and a square and round spray gun 67 fixedly connected to the driving end of the driving component, the square and round spray gun 67 is used for circular rotating painting operation;

[0026] The drive assembly includes a drive motor 64, the bottom of which is fixedly connected to the top of the adjustment plate 63. The output shaft of the drive motor 64 is fixedly connected to an electric telescopic rod 65. The telescopic end of the electric telescopic rod 65 is fixedly connected to a rotating plate 66. The top of the square spray gun 67 is fixedly connected to the bottom of the rotating plate 66. The top of the rotating plate 66 is fixedly connected to a paint storage tank 68. The top of the paint storage tank 68 is fixedly connected to a booster pump 69. A dust removal scraper 610 is fixedly connected to the outer wall of the rotating plate 66. The rotating plate 66 is the drive end of the drive assembly, and the drive end ensures the basic operation of the device.

[0027] The fixing component 5 includes a central column 51, the bottom of which is fixedly connected to the bottom of the inner wall of the receiving frame 2. Four electric push rods 52 are fixedly connected to the outer wall of the central column 51. Each of the four electric push rods 52 has a fastening pad 53 fixedly connected to its telescopic end. This is existing technology and will not be further elaborated.

[0028] The dust removal scraper 610 is made of a high-toughness smooth material. The top of the toothed ring body 4 is located on the movement trajectory of the bottom of the dust removal scraper 610. The high-toughness smooth material can reduce the friction generated after contact.

[0029] Based on the above structure, the gear ring body 4 is placed inside the receiving frame 2. Then, the operator activates four electric push rods 52 via an external controller, causing the telescopic ends of the four electric push rods 52 to move simultaneously towards the inner wall of the gear ring body 4. This movement of the four electric push rods 52 simultaneously moves four fastening pads 53 towards the inner wall of the gear ring body 4 until they are in close contact with the inner wall, thus restricting the position of the gear ring body 4. Next, the operator manually rotates the main rotating rod 62. The rotation of the main rotating rod 62 causes the adjusting plate 63 to rotate, which in turn causes the electric telescopic rod 65 to rotate. The electric telescopic rod 65 then causes the rotating plate 66 to rotate, which in turn causes the square-round spray gun 67 and the dust removal scraper 610 to rotate simultaneously, positioning the square-round spray gun 67 above the gear ring body 4 to be processed. Finally, the operator activates the electric telescopic rod 65 via an external controller. The telescopic end of the electric telescopic rod 65 moves downward, which in turn drives the rotating plate 66 to move downward. The rotating plate 66 then drives the square and round spray gun 67 and the dust removal scraper 610 to move downward simultaneously until the dust removal scraper 610 contacts the top surface of the gear ring body 4. Finally, the operator turns on the drive motor 64 through the external controller. The output shaft of the drive motor 64 rotates, which drives the electric telescopic rod 65 to rotate. The rotation of the electric telescopic rod 65 drives the rotating plate 66 to rotate. The rotation of the rotating plate 66 drives the square and round spray gun 67 and the dust removal scraper 610 to rotate around the center point of the gear ring body 4. This allows the dust removal scraper 610 to remove dust from the surface of the gear ring body 4 before the painting operation, thus ensuring the effect after painting. By rotating the main rotating rod 62, the partitioned painting device 6 can perform partitioned painting processing on the gear ring body 4 in different positions and in different accommodating frames 2, thereby improving the overall processing efficiency of the device.

[0030] like Figure 1-5 As shown, a position limiting device 7 is provided at the bottom of the inner wall of the hanging frame 61. The position limiting device 7 includes an elastic telescopic rod 71. The fixed end of the elastic telescopic rod 71 is fixedly connected to the bottom of the inner wall of the hanging frame 61. The telescopic end of the elastic telescopic rod 71 is fixedly connected to a limiting arc block 72. A limiting groove 73 is provided at the top of the adjusting plate 63. The elastic telescopic rod 71 is composed of a fixed rod and a telescopic rod, as well as an elastic element installed between the fixed rod and the telescopic rod.

[0031] The bottom of the limiting arc block 72 is set with an arc surface, and the inner diameter of the limiting groove 73 is equal to the outer diameter of the limiting arc block 72, so that the two will not loosen after they overlap.

[0032] The bottom arc surface of the limiting arc block 72 is located on the movement trajectory of the top of the adjusting plate 63, and the inner wall of the slot of the limiting groove 73 is located on the movement trajectory of the outer wall of the limiting arc block 72, ensuring basic smooth operation between the devices;

[0033] According to the above structure, when the adjusting plate 63 rotates for orientation adjustment, the rotation of the adjusting plate 63 causes the limiting groove 73 to rotate. At this time, when the adjusting plate 63 rotates, the surface of the adjusting plate 63 first contacts the arc surface of the limiting arc block 72, causing the limiting arc block 72 to move towards the hanging frame 61 after being subjected to the force of the adjusting plate 63. When the limiting groove 73 moves and aligns with the limiting arc block 72, the limiting arc block 72 is no longer subjected to the force of the adjusting plate 63. At this time, under the elastic force of the elastic telescopic rod 71, it moves away from the hanging frame 61, thereby making the limiting arc block 72 and the limiting groove 73 interlock, further restricting the basic position of the partitioned spray painting device 6, so as to prevent errors in the spray painting operation due to position deviation during the spray painting operation.

[0034] 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 painting equipment for producing gearbox steel ring gears, comprising a main platform (1), a receiving frame (2) fixedly connected to the top of the main platform (1), an isolation plate (3) fixedly connected to the inner wall of the receiving frame (2), a gear ring body (4) disposed at the bottom of the inner wall of the receiving frame (2), and a fixing component (5) disposed at the bottom of the inner wall of the receiving frame (2), characterized in that: The top of the main platform (1) is provided with a partitioned spray painting device (6). The partitioned spray painting device (6) includes a hanging frame (61). The bottom of the hanging frame (61) is rotatably connected to the top of the main platform (1). The bottom of the inner wall of the hanging frame (61) is fixedly connected with a main rotating rod (62). The bottom of the main rotating rod (62) is fixedly connected with an adjusting plate (63). The top of the adjusting plate (63) is provided with a driving assembly. The driving end of the driving assembly is fixedly connected with a square and round spray gun (67).

2. The painting equipment for producing gearbox steel ring gears according to claim 1, characterized in that: The drive assembly includes a drive motor (64), the bottom of which is fixedly connected to the top of the adjustment plate (63). The output shaft of the drive motor (64) is fixedly connected to an electric telescopic rod (65). The telescopic end of the electric telescopic rod (65) is fixedly connected to a rotating plate (66). The top of the square spray gun (67) is fixedly connected to the bottom of the rotating plate (66). The top of the rotating plate (66) is fixedly connected to a paint storage tank (68). The top of the paint storage tank (68) is fixedly connected to a booster pump (69). A dust removal scraper (610) is fixedly connected to the outer wall of the rotating plate (66). The rotating plate (66) is the drive end of the drive assembly.

3. The painting equipment for producing gearbox steel ring gears according to claim 1, characterized in that: The fixing component (5) includes a central column (51), the bottom of which is fixedly connected to the bottom of the inner wall of the receiving frame (2), and four electric push rods (52) are fixedly connected to the outer wall of the central column (51). The telescopic ends of the four electric push rods (52) are all fixedly connected to fastening pads (53).

4. The painting equipment for producing gearbox steel ring gears according to claim 2, characterized in that: The dust removal scraper (610) is made of a high-toughness and smooth material, and the top of the toothed ring body (4) is located on the movement trajectory of the bottom of the dust removal scraper (610).

5. The painting equipment for producing gearbox steel ring gears according to claim 1, characterized in that: The bottom of the inner wall of the hanging frame (61) is provided with an orientation limiting device (7). The orientation limiting device (7) includes an elastic telescopic rod (71). The fixed end of the elastic telescopic rod (71) is fixedly connected to the bottom of the inner wall of the hanging frame (61). The telescopic end of the elastic telescopic rod (71) is fixedly connected to a limiting arc block (72). The top of the adjusting plate (63) is provided with a limiting groove (73).

6. The painting equipment for producing gearbox steel ring gears according to claim 5, characterized in that: The bottom of the limiting arc block (72) is set with an arc surface, and the inner diameter of the limiting groove (73) is equal to the outer diameter of the limiting arc block (72).

7. The painting equipment for producing gearbox steel ring gears according to claim 5, characterized in that: The bottom arc surface of the limiting arc block (72) is located on the movement trajectory of the top of the adjusting plate (63), and the inner wall of the groove of the limiting slot (73) is located on the movement trajectory of the outer wall of the limiting arc block (72).