Tool for blackening bearing at normal temperature
Through the normal temperature blackening tooling and using ultrasonic degreasing, hydrochloric acid and other tank areas to treat, the traditional high-temperature blackening has poor anti-rust effect and environmental pollution problems in humid environments, and the energy-saving, convenient and efficient bearing blackening process is achieved.
Patent Information
- Application Number
- CN202421116897.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-05-22
AI Technical Summary
Traditional alkaline high-temperature blackening technology has poor anti-rust effect in water or humid environments, and there are problems such as harmful substances, high energy consumption, environmental pollution and beautiful life during the treatment process.
Provide a normal temperature blackening tool, including ultrasonic degreasing tank, hot water tank, hydrochloric acid tank, water washing tank and blackening tank, and the circulating pump drives the lifting hook structure to lift and lower the moving bearings in turn, using normal temperature blackening agent, and the circulating pump ensures the liquid concentration Uniform, liquid reflux structure prevents leakage, and sewage pipes are conveniently discharged.
It realizes the blackening of bearings at room temperature, saves energy, reduces costs, optimizes processes, improves efficiency, reduces environmental pollution, and improves beauty and service life.
Smart Images
Figure CN222250980U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of blackening of bearings, and in particular provides a tooling for blackening of bearings at room temperature. Background Art
[0002] Traditional bearing blackening adopts alkaline high-temperature blackening treatment method, and needs to be hoisted and operated with cranes. The principle is that at high temperature, metal iron interacts with oxidants and alkalis to produce chemical reactions to form a black alkaline iron oxide film layer. This film layer is dense and has high hardness, has good rust prevention performance, and is especially suitable for high temperature environments; however, this treatment method has poor rust prevention effect in water or humid environments, so it is usually treated with oil immersion and other post-treatments after oxidation treatment to improve rust prevention performance. After the metal blackening treatment, rinse with hot soapy water for several minutes, rinse with cold water, and then rinse with hot water and blow dry; however, this treatment method also has some disadvantages, such as the treatment liquid contains nitrites that are harmful to the human body, the temperature is high during treatment, the energy consumption is large, and a large amount of acidic or alkaline wastewater will be generated, which may cause pollution to the environment. In addition, alkaline substances may remain and oxidize on the surface of steel under high temperature and high pressure environment, causing the surface to blacken, affecting the appearance and service life. Therefore, before alkaline high-temperature blackening treatment, the steel surface usually needs to be cleaned and passivated to remove alkaline substances and oxides on the surface and form a protective film to prevent re-oxidation. Utility Model Content
[0003] In order to solve the above technical problems, the utility model provides a tool for blackening bearings at room temperature.
[0004] The utility model is implemented in this way. It provides a tooling for blackening bearings at room temperature, including a lifting structure and multiple working grooves. The lifting structure includes a lifting drive assembly and a lifting hook structure. The lifting hook structure is connected to the lifting drive assembly. The working grooves at least include an ultrasonic degreasing groove, a hot water groove, a hydrochloric acid groove, a first water washing groove, a blackening groove, and a second water washing groove arranged in sequence. Each working groove includes a groove body. A circulation pipe is provided on the side wall of the groove body. One end of the circulation pipe is connected to the lower end of the groove body, and the other end is connected to the upper end of the groove body. A circulation pump is provided on the circulation pipe. The lifting drive assembly drives the lifting hook structure to lift and move between the multiple working grooves in sequence.
[0005] Preferably, the lifting drive assembly includes a bracket, a motor, a screw, a limit rod, a moving block and an electric telescopic rod. The bracket is arranged on both sides of the plurality of working grooves, and the screw is rotatably connected and fixedly connected to the limit rod between the two brackets. One end of the screw extends out of the bracket and is connected to the output end of the motor. The moving block is threadedly connected to the screw and movably socketed with the limit rod. The lower end of the moving block is fixedly connected to the electric telescopic rod, and a lifting hook structure is arranged on the electric telescopic rod.
[0006] Further preferably, the lifting hook structure includes a hook plate and a hook, the hook plate is provided on the telescopic portion of the electric telescopic rod, and a plurality of hooks are provided on the outer periphery of the hook plate.
[0007] It is further preferred that a liquid reflux structure is provided between two adjacent working grooves. The liquid reflux structure is a slope structure, the lower end of which is connected to the upper edge of the working groove of the previous process, and the higher end of which is connected to the upper edge of the working groove of the next process. Baffles are provided on the front and rear sides of the liquid reflux structure.
[0008] Further preferably, the bottom of each working tank is a conical bottom, the lowermost end of the conical bottom is connected to a sewage pipe, and a sewage valve is provided on the sewage pipe.
[0009] Further preferably, the upper end of the circulation pipe extends into the tank body and is connected to a nozzle.
[0010] Compared with the prior art, the advantages of the utility model are:
[0011] Provided is a tooling for bearing blackening at room temperature, which improves the traditional high-temperature blackening treatment to room-temperature blackening treatment, saves energy and reduces costs, optimizes processes and improves efficiency, and improves the tooling to be more convenient for reaction and discharge. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The present invention is further described in detail below with reference to the accompanying drawings and implementation modes:
[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0014] Figure 2 This is a structural diagram of a working tank in the utility model. DETAILED DESCRIPTION
[0015] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0016] refer to Figure 1 and Figure 2The utility model provides a tooling for blackening bearings at room temperature, including a lifting structure and multiple working tanks, the lifting structure including a lifting drive assembly and a lifting hook structure, the lifting hook structure is connected to the lifting drive assembly, the working tank at least includes an ultrasonic degreasing tank 1, a hot water tank 2, a hydrochloric acid tank 3, a first water washing tank 4, a blackening tank 5, and a second water washing tank 6 arranged in sequence, each working tank includes a tank body 7, a circulation pipe 8 is provided on the side wall of the tank body 7, one end of the circulation pipe 8 is connected to the lower end of the tank body 7, and the other end is connected to the upper end of the tank body 7, a circulation pump 9 is provided on the circulation pipe 8, and the lifting drive assembly drives the lifting hook structure to rise and fall and move between the multiple working tanks in sequence.
[0017] When the utility model is used to blacken the bearing at room temperature, the following steps are included:
[0018] 1) Surface cleaning: Wipe the bearing surface with a rag to remove contaminants, ensure that there are no impurities that affect the black dyeing results, and hang the bearing on the lifting hook structure;
[0019] 2) Ultrasonic cleaning: inject an acidic degreasing agent into the ultrasonic degreasing tank 1, and move the lifting hook structure to the top of the ultrasonic degreasing tank 1 under the drive of the lifting drive assembly, and then drive it down, so that the bearing enters the acidic degreasing agent. Control the temperature of the acidic degreasing agent at 50-70°C, and perform ultrasonic cleaning on the bearing in the ultrasonic degreasing tank 1, generally for about 10 minutes;
[0020] 3) Hot water washing: Pour hot water into the hot water tank 2 and keep the hot water at 50-70°C. Driven by the lifting drive assembly, move the lifting hook structure to the top of the hot water tank 2, and then drive it down. The bearing enters the hot water for cleaning, which usually takes about 2 minutes.
[0021] 4) Rust removal with hydrochloric acid: Hydrochloric acid and water are injected into the hydrochloric acid tank 3 at a ratio of 4%-6%. Under the drive of the lifting drive assembly, the lifting hook structure is moved to the top of the hydrochloric acid tank 3, and then driven down. The bearing enters the hydrochloric acid for pickling, which usually takes about 1 minute;
[0022] 5) Water washing: cold water is poured into the first water washing tank 4, and the lifting hook structure is moved to the top of the first water washing tank 4 under the drive of the lifting drive assembly, and then driven down, and the bearing enters the cold water and is washed in the cold water, generally for about 1 minute;
[0023] 6) Blackening: Inject purchased room temperature blackening agent and water into the blackening tank 5, usually in a ratio of 1:3. Driven by the lifting drive assembly, move the lifting hook structure to the top of the blackening tank 5, and then drive it down. The bearing enters the blackening agent to perform the blackening process. First, soak for about 2 minutes, then lift the bearing through the lifting drive assembly, rotate it at a certain angle, and immerse it in the blackening agent again. Continue to soak for about 3 minutes to ensure that the surface is evenly blackened.
[0024] 7) Water washing: cold water is poured into the second water washing tank 6, and the lifting hook structure is moved to the top of the second water washing tank 6 under the drive of the lifting drive assembly, and then driven down, and the bearing enters the cold water for cleaning;
[0025] 8) Rust prevention: Carry out reasonable rust prevention according to the storage time of the workpiece.
[0026] During the working process of each working tank, the circulation pump 9 circulates the working fluid from the lower end of the working tank to the upper end of the working tank, so that the concentration of the working fluid is more uniform.
[0027] As a specific implementation method of the lifting drive component, the lifting drive component includes a bracket 13, a motor 14, a screw 15, a limit rod 21, a moving block 16 and an electric telescopic rod 17. The bracket 13 is arranged on both sides of the multiple working grooves, and the screw 15 is rotatably connected and fixedly connected to the limit rod 21 between the two brackets 13. One end of the screw 15 extends out of the bracket 13 and is connected to the output end of the motor 14. The moving block 16 is threadedly connected to the screw 15 and movably socketed with the limit rod 21. The lower end of the moving block 16 is fixedly connected to the electric telescopic rod 17, and a lifting hook structure is arranged on the electric telescopic rod 17.
[0028] During the lifting and driving process, the motor 14 drives the lead screw 15 to rotate, and both ends of the lead screw 15 can be rotatably connected to the bracket 13 through bearings. Due to the limitation of the limit rod 21, the moving block 16 moves on the lead screw 15 and moves to the top of the target working groove in different process steps. Then, the electric telescopic rod 17 is extended and retracted to complete the lifting and lowering of the bearing, so that it is immersed in or comes out of different working fluids.
[0029] As a specific implementation of the lifting hook structure, the lifting hook structure includes a hook plate 18 and a hook 19 . The hook plate 18 is provided at the telescopic portion of the electric telescopic rod 17 , and a plurality of hooks 19 are provided on the outer periphery of the hook plate 18 .
[0030] A bearing can be hung on each hook 19, thus improving work efficiency.
[0031] In order to prevent the working fluid from leaking from between the two working grooves during the bearing replacement process, as an improvement of the technical solution, a liquid reflux structure 20 is provided between two adjacent working grooves. The liquid reflux structure 20 is a slope structure, the lower end of which is connected to the upper edge of the working groove of the previous process, and the higher end of which is connected to the upper edge of the working groove of the next process. Baffles are provided on the front and rear sides of the liquid reflux structure.
[0032] In order to conveniently discharge the working fluid that has been used for a certain period of time, as an improvement, the bottom of each working tank is a conical bottom 10, the lowermost end of the conical bottom 10 is connected to a drain pipe 11, and a drain valve 12 is provided on the drain pipe 11.
[0033] In order to circulate the working fluid over a large range, as an improvement of the technical solution, the upper end of the circulation pipe 8 extends into the tank body 7 and is connected to a nozzle.
[0034] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in this field without departing from the purpose of the present invention.
Claims
1. A tool for blackening bearings at room temperature, characterized in that: The invention comprises a lifting structure and a plurality of working tanks, wherein the lifting structure comprises a lifting drive assembly and a lifting hook structure, wherein the lifting hook structure is connected to the lifting drive assembly, wherein the working tanks at least comprise an ultrasonic degreasing tank (1), a hot water tank (2), a hydrochloric acid tank (3), a first water washing tank (4), a blackening tank (5), and a second water washing tank (6) which are arranged in sequence, wherein each working tank comprises a tank body (7), wherein a circulation pipe (8) is arranged on the side wall of the tank body (7), wherein one end of the circulation pipe (8) is connected to the lower end of the tank body (7), and the other end is connected to the upper end of the tank body (7), wherein a circulation pump (9) is arranged on the circulation pipe (8), and the lifting drive assembly drives the lifting hook structure to rise and fall and move in sequence between the plurality of working tanks.
2. The tooling for blackening bearings at room temperature according to claim 1, characterized in that: The lifting drive assembly comprises a bracket (13), a motor (14), a lead screw (15), a limit rod (21), a moving block (16) and an electric telescopic rod (17); the bracket (13) is arranged on both sides of the plurality of working grooves; the lead screw (15) is rotatably connected between two brackets (13) and the limit rod (21) is fixedly connected; one end of the lead screw (15) extends out of the bracket (13) and is connected to the output end of the motor (14); the moving block (16) is threadedly connected to the lead screw (15) and movably sleeved with the limit rod (21); the lower end of the moving block (16) is fixedly connected to the electric telescopic rod (17); and a lifting hook structure is arranged on the electric telescopic rod (17).
3. The tooling for blackening bearings at room temperature according to claim 2, characterized in that: The hoisting hook structure comprises a hook plate (18) and a hook (19); the hook plate (18) is provided at the telescopic portion of the electric telescopic rod (17); and a plurality of hooks (19) are provided on the outer periphery of the hook plate (18).
4. The tooling for bearing blackening at room temperature according to claim 1, characterized in that: A liquid reflux structure (20) is provided between two adjacent working grooves. The liquid reflux structure (20) is a slope structure, with a lower end connected to the upper edge of the working groove of the previous process and a higher end connected to the upper edge of the working groove of the next process. Baffles are provided on the front and rear sides of the liquid reflux structure.
5. The tooling for bearing blackening at room temperature according to claim 1, characterized in that: The bottom of each working tank is a conical bottom (10), the lowermost end of the conical bottom (10) is connected to a sewage pipe (11), and a sewage valve (12) is provided on the sewage pipe (11).
6. The tooling for blackening bearings at room temperature according to claim 1, characterized in that: The upper end of the circulation pipe (8) extends into the tank body (7) and is connected to a nozzle.