Salt bath for heat treatment of bearing parts

Abstract

The utility model discloses a salt bath pool for heat treatment of bearing parts, which comprises a shell, a transfer frame, a first pool body and a second pool body, and the transfer frame is provided with a bracket and a sliding driving piece for driving the bracket to slide between the first pool body and the second pool body. A tray and a lifting driving part for driving the tray to lift are arranged on the bracket, a connecting channel is arranged between the first pool body and the second pool body, and isolation plates are movably arranged at the positions, corresponding to the connecting channel, of the first pool body and the second pool body respectively. And the structural layout is more reasonable, continuous salt bath treatment is facilitated, and a good use effect is achieved.

Description

Technical Field

[0001] The utility model relates to a salt bath used for heat treatment of bearing parts. Background Art

[0002] A salt bath refers to an industrial furnace that uses molten salt liquid as a heating medium and immerses the workpiece in the salt liquid for heating. According to the working temperature of the furnace, sodium chloride, potassium chloride, barium chloride, sodium cyanide, potassium cyanide, sodium nitrate, potassium nitrate and other salts are usually selected as heating media. The salt bath furnace has a fast heating speed and uniform temperature. When heat treating some bearing parts, it usually involves multiple salt bath operations under different temperature conditions. This causes the workpiece to be moved from one salt bath to another, which has low operating efficiency. In addition, the ambient temperature fluctuates greatly during the movement, which can easily affect the heat treatment effect and subsequent testing. Utility Model Content

[0003] In view of the deficiencies in the prior art, the utility model provides a salt bath pool for heat treatment of bearing parts, which has a more reasonable structural layout, is convenient for continuous salt bath treatment, and has a good use effect.

[0004] To achieve the above-mentioned objectives, the utility model provides a salt bath pool for heat treatment of bearing components, comprising a transfer frame, a first pool body and a second pool body, the transfer frame is provided with a bracket and a sliding drive component for driving the bracket to slide between the first pool body and the second pool body, the bracket is provided with a tray and a lifting drive component for driving the tray to rise and fall, a connecting path is provided between the first pool body and the second pool body, and isolation plates are movably provided at positions of the first pool body and the second pool body corresponding to the connecting path.

[0005] The beneficial effect of such arrangement is as follows: such arrangement, through the two tank bodies, the two tank bodies can accommodate salt bath liquids with different temperature conditions, thereby meeting the heat treatment requirements of multiple salt baths. When in use, the material to be salt bathed is first placed in a tray, and the tray is immersed in the first tank body through a lifting drive member. The lifting drive member here belongs to the prior art, and can adopt a combination of a cylinder, an oil cylinder, or a rack and pinion structure, etc., which will not be elaborated here. After the first tank body is immersed to meet the processing time requirements, the tray is lifted up and separated from the first tank body by the lifting drive member, and the bracket moves to the second tank body under the action of the sliding drive member. The sliding drive member here The moving part can be driven by a motor or a pulley, which will not be elaborated here. The movement trajectory of the bracket here is above the connecting channel. The salt bath liquid poured in the connecting channel here is the same as the salt bath liquid in the second tank body. When the bracket moves to the corresponding position of the connecting channel, the lifting drive member immerses the tray into the connecting channel. The isolation plates on both sides of the connecting channel can achieve isolation between the liquid in the connecting channel and the tank body. The isolation plates at the corresponding positions can be opened according to different transfer directions to facilitate the sharing of the salt bath liquid, thereby reducing the impact on the heat treatment state of the workpiece during the transfer process. At the same time, this layout is simple and compact, easy to implement, and has a good use effect.

[0006] As a further configuration of the present invention, the first pool body and the second pool body are respectively provided with an agitation component for forming bubbles in the first pool body or the second pool body.

[0007] The beneficial effect of such an arrangement is as follows: such an arrangement, through the agitation component, which may be a negative pressure device, through multiple air ports at the bottom of the pool body, the negative pressure device is connected to the air ports to allow external gas to enter the pool body, thereby forming bubbles in the pool body, thereby achieving agitation of the liquid in the pool body, allowing the liquid in the pool body to flow fully, thereby better allowing the material to undergo a salt bath and improving the heat treatment effect.

[0008] As a further configuration of the utility model, the first pool body or the second pool body is respectively provided with installation grooves at positions corresponding to the connecting paths, the isolation plate is inserted into the installation grooves, guide grooves and guide blocks are provided between the two sides of the isolation plate and the installation grooves, and the guide grooves and the guide blocks are slidably matched.

[0009] The beneficial effect of such arrangement is that such arrangement facilitates the disassembly and installation of the isolation plate, and at the same time the installation is stable and has a good use effect.

[0010] As a further configuration of the utility model, a heating component for keeping the salt bath liquid in the connecting channel warm is provided on the bottom surface of the connecting channel.

[0011] The beneficial effect of such arrangement is that the salt bath liquid in the connecting channel meets the temperature requirement of the salt bath step, so that the salt bath material can maintain the salt bath during the movement, thereby improving the heat treatment effect and having a good use effect.

[0012] As a further configuration of the present invention, the bottom surface of the tray is hollowed out.

[0013] The beneficial effect of such arrangement is that such arrangement enables the salt bath material to contact the salt bath liquid more fully, thereby ensuring the salt bath effect; meanwhile, the structure is simple, easy to implement, and has a good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an embodiment of the utility model;

[0015] Figure 2 It is a partial enlarged view of the position of the isolation plate in the embodiment of the utility model. DETAILED DESCRIPTION

[0016] The salt bath for heat treatment of bearing parts of the utility model is implemented as follows Figure 1 and Figure 2As shown: it includes a transfer rack 3, a first cell body 1 and a second cell body 2, the transfer rack 3 is provided with a bracket 4 and a sliding drive component for driving the bracket 4 to slide between the first cell body 1 and the second cell body 2, the bracket 4 is provided with a tray 42 and a lifting drive component 41 for driving the tray 42 to rise and fall, a connecting path 5 is provided between the first cell body 1 and the second cell body 2, and isolation plates 6 are movably provided at the positions of the first cell body 1 and the second cell body 2 corresponding to the connecting path 5. The beneficial effect of such arrangement is as follows: such arrangement, through the two tank bodies, the two tank bodies can accommodate salt bath liquids with different temperature conditions, thereby meeting the heat treatment requirements of multiple salt baths. When in use, the material to be salt bathed is first placed in the tray 42, and the tray 42 is immersed in the first tank body 1 through the lifting drive 41. The lifting drive 41 here belongs to the prior art, and can adopt a combination of a cylinder, an oil cylinder, or a rack and pinion structure, etc., which will not be elaborated here. After the first tank body 1 is immersed to meet the processing time requirements, the tray 42 is lifted up and separated from the first tank body 1 by the lifting drive 41, and the bracket 4 moves to the second tank body 2 under the action of the sliding drive. The sliding drive here is The driving member can be driven by a motor or a pulley, which will not be elaborated here. The movement trajectory of the bracket 4 is above the connecting channel 5. The salt bath liquid filled in the connecting channel 5 is the same as the salt bath liquid in the second tank body 2. When the bracket 4 moves to the corresponding position of the connecting channel 5, the lifting driving member 41 immerses the tray 42 into the connecting channel 5. The isolation plates 6 on both sides of the connecting channel 5 can achieve isolation between the liquid in the connecting channel 5 and the tank body. The isolation plates 6 at the corresponding positions can be opened according to different transport directions to facilitate the sharing of the salt bath liquid, thereby reducing the impact on the heat treatment state of the workpiece during the transport process. At the same time, this layout is simple and compact, easy to implement, and has a good use effect.

[0017] As a further configuration of this embodiment, the first cell body 1 and the second cell body 2 are respectively provided with an agitation component for forming bubbles in the first cell body 1 or the second cell body 2. The beneficial effect of such configuration is that, through such configuration, the agitation component, which may be a negative pressure device, passes external gas into the cell body through multiple gas ports at the bottom of the cell body, and the negative pressure device is connected to the gas ports to form bubbles in the cell body, thereby achieving agitation of the liquid in the cell body, so that the liquid in the cell body can flow fully, thereby better allowing the material to undergo salt bathing and improving the heat treatment effect.

[0018] As a further configuration of this embodiment, the first cell body 1 or the second cell body 2 is respectively provided with a mounting groove at a position corresponding to the connection channel 5, the isolation plate 6 is inserted into the mounting groove, and guide grooves and guide blocks 61 are provided between the two sides of the isolation plate 6 and the mounting groove, and the guide grooves and the guide blocks 61 are slidably matched. The beneficial effect of this configuration is that it is convenient to disassemble and install the isolation plate 6, and the installation is stable, and has a good use effect.

[0019] As a further configuration of this embodiment, a heating component for keeping the salt bath liquid in the connecting channel 5 warm is provided on the bottom surface of the connecting channel 5. The beneficial effect of such configuration is that the salt bath liquid in the connecting channel 5 meets the temperature requirement of the salt bath step, so that the salt bath material can maintain the salt bath during the movement process, thereby improving the heat treatment effect and having a good use effect.

[0020] As a further configuration of this embodiment, the bottom surface of the tray 42 is hollowed out. The beneficial effect of this configuration is that the salt bath material can be more fully in contact with the salt bath liquid to ensure the salt bath effect, and the structure is simple, easy to implement, and has a good use effect.

[0021] The above example is only one preferred specific example of the present invention. The common changes and substitutions made by those skilled in the art within the technical solution of the present invention are all included in the protection scope of the present invention.

Claims

1. A salt bath for heat treatment of bearing parts, characterized in that: It includes a transfer rack, a first pool body and a second pool body. The transfer rack is provided with a bracket and a sliding drive component for driving the bracket to slide between the first pool body and the second pool body. The bracket is provided with a tray and a lifting drive component for driving the tray to rise and fall. A connecting path is provided between the first pool body and the second pool body. Isolation plates are movably provided at positions of the first pool body and the second pool body corresponding to the connecting path.

2. The salt bath for heat treatment of bearing parts according to claim 1, characterized in that: The first pool body and the second pool body are respectively provided with an agitation component for forming bubbles in the first pool body or the second pool body.

3. The salt bath for heat treatment of bearing parts according to claim 1 or 2, characterized in that: The first cell body or the second cell body is respectively provided with mounting grooves at positions corresponding to the connecting paths, the isolation plate is inserted into the mounting grooves, guide grooves and guide blocks are provided between the two sides of the isolation plate and the mounting grooves, and the guide grooves and the guide blocks are slidably matched.

4. The salt bath for heat treatment of bearing parts according to claim 1, characterized in that: The bottom surface of the connecting channel is provided with a heating component for keeping the salt bath liquid in the connecting channel warm.

5. The salt bath for heat treatment of bearing parts according to claim 1, characterized in that: The bottom surface of the tray is hollowed out.

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