Special equipment for preparing wear-resistant coating of high-speed gear

Abstract

The utility model relates to the technical field of gear coating, in particular to special equipment for preparing a wear-resistant coating of a high-speed gear, which comprises a working table, supporting legs are arranged below the working table, a working groove is arranged on the upper surface of the working table, the size of the working groove is larger than that of the high-speed gear, and a cavity is arranged inside the working table below the working groove. A plurality of channels are formed in the inner side wall of the operation groove in the circumferential direction and communicate with the cavity, and a positioning column is arranged on the inner bottom wall of the operation groove and is in sliding fit with the high-speed gear after penetrating through an inner hole of the gear; a top cover is arranged above the operation groove in a liftable mode, sealing gaskets are arranged below the top cover and on the inner bottom wall of the operation groove, and the two sealing gaskets are used for sealing the upper face and the lower face of the gear. The device further comprises a telescopic part, a glue conveying assembly and a pressure relief assembly, the telescopic part is used for driving the top cover to ascend and descend, the glue conveying assembly is used for conveying wear-resistant coating glue to the cavity, and the pressure relief assembly is used for conducting pressure relief on the cavity. According to the invention, the labor intensity of manually coating the wear-resistant coating of the high-speed gear can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gear coating, in particular to a special device for preparing a wear-resistant coating for high-speed gears. Background Art

[0002] Gears are one of the important components in the mechanical transmission system. Different working environments, loads, and rotational speeds require the selection of different materials. Therefore, the selection of gear materials is one of the key links in gear design, and multiple factors need to be comprehensively considered according to actual needs, including the mechanical properties, thermal properties, wear resistance, corrosion resistance, machining properties, etc. of the materials. The selection of gear materials needs to comprehensively consider several factors such as the working environment, load, rotational speed, and machining properties. For gears with different rotational speeds, there are different requirements for the selection of their materials. For example, high-speed gears need to have good wear resistance, fatigue resistance, and thermal stability. These properties can be achieved by reasonably selecting materials and appropriate surface treatment. In order to increase the wear resistance of high-speed gears, a wear-resistant coating can be applied to the surface of high-speed gears. Wear-resistant coating materials are materials that can form a hard and wear-resistant protective layer on the surface, and are usually used to enhance the wear resistance of materials and extend their service life. Wear-resistant coating materials are widely used in industrial production, mechanical manufacturing, automobile manufacturing and other fields, and are of great significance for improving the service life of equipment and reducing maintenance costs.

[0003] Wear-resistant coating materials are mainly divided into two categories. One category is the wear-resistant coatings formed by spraying ceramics, alloys, oxides, fluoroplastics, etc. on the metal surface using plasma spraying, arc spraying, and flame spraying, which are generally referred to as thermal spraying wear-resistant coatings; the other category is the wear-resistant coating adhesives prepared from various resins, elastomers, etc. The wear-resistant coatings obtained by applying them to the metal surface and curing naturally or by heating are called chemically bonded wear-resistant coatings.

[0004] For thermal spraying wear-resistant coatings, a thermal spraying process is required, and the thermal spraying process requires the use of special equipment and skilled operation techniques, with relatively high operation difficulty. For chemically bonded wear-resistant coatings, the bonding process is relatively simple. Usually, it is only necessary to configure the wear-resistant coating adhesive according to the regulations and evenly coat the parts of the high-speed gear that need to be protected. When using the wear-resistant coating adhesive to coat the high-speed gear, usually the construction personnel manually use the coating tool to coat the working surfaces of multiple teeth of the high-speed gear, with a large operation intensity and long time consumption. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a special device for preparing a wear-resistant coating for high-speed gears to solve the problem of large operation intensity of manually coating the wear-resistant coating adhesive on high-speed gears.

[0006] The utility model is realized by the following technical solutions:

[0007] A special device for preparing a wear-resistant coating for high-speed gears, including an operating table. Multiple legs are provided below the operating table. An operating groove with a shape consistent with that of the gear is formed on the upper surface of the operating table. The size of the operating groove is larger than that of the high-speed gear. A cavity is formed inside the operating table below the operating groove. Multiple channels are circumferentially formed on the inner sidewall of the operating groove, and all the multiple channels are communicated with the cavity. A positioning column is provided on the inner bottom wall of the operating groove, and the positioning column coincides with the central axis of the operating groove. The positioning column passes through the inner hole of the gear and is slidably matched with the high-speed gear. A top cover is liftably arranged above the operating groove. Sealing gaskets are provided below the top cover and on the inner bottom wall of the operating groove. The two sealing gaskets are used to shield and seal the upper and lower surfaces of the gear. It further includes a lifting member, a glue feeding assembly, and a pressure relief assembly. The lifting member is used to drive the top cover to lift and lower. The glue feeding assembly is used to convey the wear-resistant coating glue into the cavity. The pressure relief assembly is used to relieve the pressure in the cavity.

[0008] Further, a plurality of operating grooves are provided on the operating table, and the inner sidewall of each operating groove is communicated with the cavity through a plurality of the channels. A positioning column and a sealing gasket are provided on the inner sidewall of each operating groove. The top cover is used to cover all the operating grooves, and a plurality of sealing gaskets for shielding and sealing the upper surface of the corresponding gear are provided below the top cover.

[0009] Further, an installation frame is provided above the operating table. The lifting member includes a cylinder. One end of the cylinder is connected to the installation frame, and the other end extends vertically downward and is connected to the top cover.

[0010] Further, the glue feeding assembly includes a glue storage tank and a glue feeding pump. The glue storage tank is located below the workbench. A glue suction pipe is communicated between the pump inlet end of the glue feeding pump and the glue storage tank, and a glue delivery pipe is communicated between the pump outlet end and the cavity of the operating table. A stop valve is provided on the glue delivery pipe.

[0011] Further, the pressure relief assembly includes a pressure relief pipe and a pressure relief valve. One end of the pressure relief pipe is connected to the lower surface of the operating table and is communicated with the cavity, and the other end is communicated with the glue storage tank.

[0012] Further, a plurality of support columns are provided in the cavity, and the plurality of support columns are used to support the top wall of the cavity.

[0013] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0014] In the present utility model, when a wear-resistant coating needs to be applied to a high-speed gear, first place the high-speed gear in the working tank so that the high-speed gear is sleeved outside the positioning column to achieve the positioning of the high-speed gear. At this time, there is a small gap between the working surfaces of all teeth of the high-speed gear and the inner wall of the working tank. Subsequently, drive the top cover to descend through the lifting member so that the top cover covers the working tank, and the two sealing gaskets seal and cover the upper and lower surfaces of the high-speed gear. Then, convey the wear-resistant coating glue into the cavity through the glue conveying assembly. As the wear-resistant coating glue in the cavity increases, the wear-resistant coating glue will flow into the working tank through multiple channels, so that the wear-resistant coating glue fills the gap between the high-speed gear and the inner wall of the working tank, and further makes the wear-resistant coating glue adhere to the working surfaces of all teeth of the high-speed gear. Subsequently, stop conveying the wear-resistant coating glue, relieve the pressure in the cavity through the pressure relief assembly, and then drive the top cover to rise through the lifting member. At this time, the high-speed gear can be taken out of the working tank by a magnetic adsorption tool, and then subsequent curing treatment is carried out to complete the coating preparation work of the wear-resistant coating of the high-speed gear, reducing the workload of manual coating and the input of labor force. Description of the Drawings

[0015] The drawings described herein are used to provide a further understanding of the embodiments of the present utility model, form a part of this application, and do not limit the embodiments of the present utility model.

[0016] In the drawings:

[0017] Figure 1 is a partial cross-sectional view of the present utility model;

[0018] Figure 2 is of the present utility model Figure 1 enlarged view of part A.

[0019] Markings in the drawings and corresponding component names:

[0020] 1, working table; 2, support leg; 3, working tank; 4, cavity; 5, channel; 6, positioning column; 7, top cover; 8, mounting rack; 9, cylinder; 10, glue storage tank; 11, glue conveying pump; 12, glue suction pipe; 13, glue conveying pipe; 14, stop valve; 15, pressure relief pipe; 16, pressure relief valve; 17, support column; 18, sealing gasket; 19, high-speed gear. Detailed Embodiments

[0021] To make the purpose, technical solutions, and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with embodiments and drawings. The illustrative embodiments and descriptions thereof of the present utility model are only used to explain the present utility model and do not limit the present utility model. It should be noted that the present utility model has been in the actual R & D and use stage.

[0022] Embodiment 1

[0023] A special device for preparing a wear-resistant coating for high-speed gears, referring to Figure 1 , Figure 2 , includes an operating table 1, multiple legs 2 are arranged below the operating table 1, an operating groove 3 with a shape consistent with that of the gear is opened on the upper surface of the operating table 1, the size of the operating groove 3 is larger than that of the high-speed gear 19, a cavity 4 is opened inside the operating table 1 below the operating groove 3, multiple channels 5 are circumferentially opened on the inner side wall of the operating groove 3, and the multiple channels 5 are all communicated with the cavity 4. A positioning column 6 is arranged on the inner bottom wall of the operating groove 3, the positioning column 6 coincides with the central axis of the operating groove 3, and after passing through the inner hole of the gear, the positioning column 6 is slidably matched with the high-speed gear 19; a top cover 7 is arranged above the operating groove 3 in a liftable manner, and sealing gaskets 18 are arranged below the top cover 7 and on the inner bottom wall of the operating groove 3, and the two sealing gaskets 18 are used to shield and seal the upper and lower surfaces of the gear; it also includes a lifting member, a glue feeding assembly and a pressure relief assembly, the lifting member is used to drive the top cover 7 to lift and lower, the glue feeding assembly is used to convey the wear-resistant coating glue to the cavity 4, and the pressure relief assembly is used to relieve the pressure in the cavity 4.

[0024] In this solution, when it is necessary to coat the high-speed gear 19 with a wear-resistant coating, first place the high-speed gear 19 in the operating groove 3, so that the high-speed gear 19 is sleeved outside the positioning column 6 to realize the positioning of the high-speed gear 19. At this time, a small gap is left between the working surfaces of all the teeth of the high-speed gear 19 and the inner side wall of the operating groove 3. Subsequently, the lifting member is used to drive the top cover 7 to descend, so that the top cover 7 covers the operating groove 3, and the two sealing gaskets 18 seal and cover the upper and lower surfaces of the high-speed gear 19. Then, the wear-resistant coating glue is conveyed into the cavity 4 through the glue feeding assembly. As the wear-resistant coating glue in the cavity 4 increases, the wear-resistant coating glue will flow into the operating groove 3 through the multiple channels 5, so that the wear-resistant coating glue fills the gap between the high-speed gear 19 and the inner side wall of the operating groove 3, and further makes the wear-resistant coating glue adhere to the working surfaces of all the teeth of the high-speed gear 19. Subsequently, stop conveying the wear-resistant coating glue, relieve the pressure in the cavity 4 through the pressure relief assembly, and then drive the top cover 7 to rise through the lifting member. At this time, the high-speed gear 19 can be taken out of the operating groove 3 by a magnetic tool, and then subsequent curing treatment is carried out, and the coating preparation work of the wear-resistant coating of the high-speed gear 19 can be completed, reducing the workload of manual coating and reducing the input of labor. The thickness of the wear-resistant coating can be controlled and adjusted by designing the size of the gap between the high-speed gear 19 and the inner side wall of the operating groove 3.

[0025] Embodiment 2

[0026] On the basis of Embodiment 1, in this embodiment, referring to Figure 1 , Figure 2, there are multiple working slots 3 on the working table 1, and the inner side walls of each working slot 3 are connected to the cavity 4 through multiple channels 5. Positioning posts 6 and gaskets 18 are provided on the inner side walls of each working slot 3. The top cover 7 is used to cover all the working slots 3, and multiple gaskets 18 for covering and sealing the upper surfaces of the corresponding gears are provided below the top cover 7. In this solution, multiple high-speed gears 19 can be placed in the corresponding working slots 3 at the same time, that is, the surfaces of multiple high-speed gears 19 can be coated with wear-resistant coatings simultaneously, which is convenient for improving the efficiency of batch coating of high-speed gears 19.

[0027] Embodiment 3

[0028] Based on Embodiment 1, in this embodiment, referring to Figure 1 , Figure 2 , an installation frame 8 is provided above the working table 1. The lifting member includes a cylinder 9. One end of the cylinder 9 is connected to the installation frame 8, and the other end extends vertically downward and is connected to the top cover 7. After placing the high-speed gear 19 in the working slot 3, the top cover 7 can be conveniently pressed against the working table 1 through the cylinder 9, so that the top cover 7 covers the working slot 3. After glue injection and pressure relief processing, the top cover 7 can be conveniently lifted by shortening the cylinder 9, which is convenient for taking out the high-speed gear 19 in the working slot 3 subsequently. In other embodiments, the lifting member can also use an electric cylinder or a hydraulic cylinder.

[0029] Embodiment 4

[0030] Based on Embodiment 1, in this embodiment, referring to Figure 1 , Figure 2 , the glue injection assembly includes a glue storage tank 10 and a glue injection pump 11. The glue storage tank 10 is located below the working table. A glue suction pipe 12 is connected between the pump inlet end of the glue injection pump 11 and the glue storage tank 10, and a glue injection pipe 13 is connected between the pump outlet end and the cavity 4 of the working table 1. A stop valve 14 is provided on the glue injection pipe 13. After filling the prepared wear-resistant coating glue into the glue storage tank 10 and placing the high-speed gear 19 in the working slot 3, the stop valve 14 is opened and the glue injection pump 11 is started. The glue injection pump 11 transports the wear-resistant coating glue in the glue storage tank 10 to the cavity 4 through the glue suction pipe 12 and the glue injection pipe 13. The wear-resistant coating glue in the cavity 4 is then transported to the working slot 3 through multiple channels 5, so that the wear-resistant coating glue fills the gaps between the working surfaces of all teeth of the high-speed gear 19 and the inner side wall of the working slot 3. Furthermore, a layer of wear-resistant coating glue is covered on the working surfaces of all teeth of the high-speed gear 19. And because the glue injection pump 11 can pressurize the cavity 4 and the working slot 3, it is convenient for the wear-resistant coating glue to be more stably attached to the working surfaces of all teeth of the high-speed gear 19.

[0031] Embodiment 5

[0032] Based on Embodiment 1, in this embodiment, referring to Figure 1 ,Figure 2 , the pressure relief component includes a pressure relief pipe 15 and a pressure relief valve 16. One end of the pressure relief pipe 15 is connected to the lower surface of the working table 1 and communicates with the cavity 4, and the other end communicates with the glue storage tank 10. After pressurizing and fully conveying the wear-resistant coating glue into the cavity 4 and the working tank 3 through the glue delivery pump 11, turn off the glue delivery pump 11, close the stop valve 14, and then open the pressure relief valve 16. The wear-resistant coating glue in the cavity 4 and the working tank 3 is discharged and depressurized through the pressure relief pipe 15. Subsequently, drive the top cover 7 to rise through the lifting member to prevent the wear-resistant coating glue in the working tank 3 from splashing out when lifting the top cover 7, causing material waste.

[0033] Example 6

[0034] Based on Example 2, in this example, refer to Figure 1 , Figure 2 , a plurality of support columns 17 are arranged in the cavity 4, and the plurality of support columns 17 are used to support the top wall of the cavity 4. When the number of working tanks 3 is large, the area of the cavity 4 is increased. The stability of the top wall of the cavity 4 can be improved through the support columns 17 to prevent the top wall of the cavity 4 from being squeezed and deformed.

[0035] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above description is only the specific embodiments of the present invention and is not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A special equipment for preparing a wear-resistant coating for high-speed gears, characterized in that: It includes a workbench (1), multiple legs (2) are arranged below the workbench (1), a work groove (3) with a shape consistent with that of a gear is formed on the upper surface of the workbench (1), the size of the work groove (3) is larger than that of a high-speed gear (19), a cavity (4) is formed inside the workbench (1) below the work groove (3), multiple channels (5) are formed along the circumferential direction on the inner side wall of the work groove (3), and multiple channels (5) are all communicated with the cavity (4). A positioning column (6) is arranged on the inner bottom wall of the work groove (3), the positioning column (6) coincides with the central axis of the work groove (3), and the positioning column (6) passes through the inner hole of the gear and is in sliding fit with the high-speed gear (19); a top cover (7) is arranged above the work groove (3) in a liftable manner, and sealing gaskets (18) are arranged below the top cover (7) and on the inner bottom wall of the work groove (3), and the two sealing gaskets (18) are used for shielding and sealing the upper and lower surfaces of the gear; it further includes a lifting member, a glue conveying assembly and a pressure relief assembly. The lifting member is used to drive the top cover (7) to lift, the glue conveying assembly is used to convey wear-resistant coating glue to the cavity (4), and the pressure relief assembly is used to relieve the pressure of the cavity (4).

2. The special equipment for preparing a wear-resistant coating for high-speed gears according to claim 1, characterized in that: A plurality of work grooves (3) are arranged on the workbench (1), and the inner side wall of each work groove (3) is communicated with the cavity (4) through a plurality of channels (5). A positioning column (6) and a sealing gasket (18) are arranged on the inner side wall of each work groove (3). The top cover (7) is used to cover all the work grooves (3), and a plurality of sealing gaskets (18) for shielding and sealing the upper surface of the corresponding gear are arranged below the top cover (7).

3. The special equipment for preparing the wear-resistant coating of the high-speed gear according to claim 1, wherein: An installation frame (8) is arranged above the workbench (1). The lifting member includes a cylinder (9). One end of the cylinder (9) is connected to the installation frame (8), and the other end extends vertically downward and is connected to the top cover (7).

4. A special equipment for preparing a wear-resistant coating for high-speed gears according to claim 1, characterized in that: The glue conveying assembly includes a glue storage tank (10) and a glue conveying pump (11). The glue storage tank (10) is located below the workbench. A glue suction pipe (12) is communicated between the pump inlet end of the glue conveying pump (11) and the glue storage tank (10), and a glue conveying pipe (13) is communicated between the pump outlet end and the cavity (4) of the workbench (1). A stop valve (14) is arranged on the glue conveying pipe (13).

5. The special equipment for preparing a wear-resistant coating for a high-speed gear according to claim 1, characterized in that: The pressure relief assembly includes a pressure relief pipe (15) and a pressure relief valve (16). One end of the pressure relief pipe (15) is connected to the lower surface of the workbench (1) and is communicated with the cavity (4), and the other end is communicated with the glue storage tank (10).

6. The special equipment for preparing a wear-resistant coating for a high-speed gear according to claim 2, wherein: Multiple support columns (17) are arranged in the cavity (4), and the multiple support columns (17) are used to support the top wall of the cavity (4).

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