CN212655846U - QPQ treatment production line - Google Patents
QPQ treatment production line Download PDFInfo
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- CN212655846U CN212655846U CN202021435672.2U CN202021435672U CN212655846U CN 212655846 U CN212655846 U CN 212655846U CN 202021435672 U CN202021435672 U CN 202021435672U CN 212655846 U CN212655846 U CN 212655846U
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Abstract
The utility model relates to a second generation QPQ treatment process equipment of a hydraulic cylinder, and discloses a QPQ treatment production line, which comprises a preheating furnace, a nitriding furnace and an oxygen infiltration furnace which are connected in sequence, wherein the preheating furnace, the nitriding furnace and the oxygen infiltration furnace are all provided with openings arranged at the top ends; a conveying mechanism for conveying workpieces is arranged above the preheating furnace, the nitriding furnace and the oxygen permeation furnace; the conveying mechanism comprises a feeding mechanism and a material taking mechanism matched with the feeding mechanism; an ion penetrating agent for QPQ treatment is arranged in the feeding mechanism; the material taking mechanism is used for automatically taking out or putting in the ion permeating agent and the workpiece from each opening in sequence. The utility model discloses can effectively reduce current QPQ treatment facility's cost input.
Description
Technical Field
The utility model relates to a second generation QPQ processing technology of pneumatic cylinder, concretely relates to QPQ handles production line.
Background
QPQ treatment, which is an abbreviated form of Quench-Polish-Quench. The method is characterized in that a ferrous metal part is placed into two ion permeating agents with different properties, and a QPQ treatment production line is formed by permeating multiple elements into the metal surface, so that the purpose of modifying the surface of the part is achieved. It is not quenched, but achieves the effect of surface quenching, so it is called QPQ abroad. The technology is called as a nitrogen-oxygen composite treatment technology in China.
Although the QPQ treatment has been widely applied abroad, the QPQ treatment needs a complete set of special equipment, and the investment in the early stage is high, so most enterprises in China still use the hard chromium plating process due to cost consideration.
The hard chromium plating process can ensure that the surface of the part has higher wear resistance and corrosion resistance at the same time, so the hard chromium plating process has wide application in various mechanical parts, particularly in the field of hydraulic systems of coal mines, and can hardly replace the hard chromium plating process by other methods due to the cost and the like. However, hexavalent chromium ions are generated during the hard chromium plating process, and not only are the hexavalent chromium ions seriously polluting the environment, but also are difficult to eliminate than cyanide.
Therefore, it is imperative to replace the hard chrome plating process entirely. In consideration of the high investment cost of the existing QPQ treatment process, a QPQ treatment production line with lower investment cost needs to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model provides a QPQ handles production line to solve the higher problem of present QPQ processing input cost.
In order to solve the above problems, the following scheme is provided:
the QPQ treatment production line comprises a preheating furnace, a nitriding furnace and an oxygen permeation furnace which are connected in sequence, wherein the preheating furnace, the nitriding furnace and the oxygen permeation furnace are provided with openings arranged at the top ends; a conveying mechanism for conveying workpieces is arranged above the preheating furnace, the nitriding furnace and the oxygen permeation furnace; the conveying mechanism comprises a feeding mechanism and a material taking mechanism matched with the feeding mechanism; an ion penetrating agent for QPQ treatment is arranged in the feeding mechanism; the material taking mechanism is used for automatically taking out or putting in the ion permeating agent and the workpiece from each opening in sequence.
The scheme has the advantages that:
by arranging the conveying mechanism, the ion permeation agent and the workpiece can be automatically conveyed to each station device; and the openings of the preheating furnace, the nitriding furnace and the oxygen permeation furnace are arranged at the top ends, so that the conveying mechanism is convenient to take and place.
The whole production line is integrated, so that the occupied space can be reduced as much as possible, and the occupied land cost is reduced.
In addition, each device in this scheme can both be reformed transform by current device and form, and the input cost is low, can effectively solve the problem that professional equipment input cost is high.
Furthermore, the feeding mechanism comprises slide rails arranged above the preheating furnace, the nitriding furnace and the oxygen permeation furnace and a feeding barrel connected with the slide rails in a sliding manner.
Through the arrangement of the sliding rails, the conveying of the feeding barrel is facilitated.
Further, the feeding barrel comprises a hanging part, a hook is connected to the hanging part, a sliding block is connected to the sliding rail in a sliding mode, and the hook is arranged on the bottom face of the sliding block.
Through the hook connection, not only convenient to detach can not block the material loading of sending the storage bucket yet.
Furthermore, an opening for pouring the ionic penetrant is formed in the top end of the feeding barrel, and a feeding pipe for flowing the ionic penetrant out is connected to the bottom end of the feeding barrel; the diameter of the feeding pipe is smaller than that of the feeding barrel.
And conveying the ion permeating agent or the workpiece in the feeding barrel to a preheating furnace, an oxygen permeating furnace, a nitriding furnace or a material taking mechanism through a feeding pipe.
Furthermore, the lower end of the feeding barrel is connected with a limiting barrel for limiting the material taking mechanism.
Make feeding agencies and pay-off bucket align through spacing section of thick bamboo, avoid spilling hourglass.
Furthermore, the top ends of the preheating furnace, the nitriding furnace and the oxygen permeation furnace are respectively provided with a furnace cover for covering the opening; the furnace cover can be turned over, and the turning direction of the furnace cover is different from the traveling direction of the conveying mechanism.
The switches of the preheating furnace, the oxygen permeation furnace and the nitriding furnace do not influence the operation of the conveying mechanism.
Further, the furnace cover is provided with a cover body communicated with the furnace body and a sealing cover used for covering the cover body, and a sealing cover assembly used for pushing the sealing cover to automatically turn over is arranged in the cover body.
The cover is automatically turned to be opened or closed by the cover assembly.
Furthermore, the sealing cover assembly comprises triangular supports formed by hinging a support rod, a hydraulic rod and a connecting rod in pairs, and one end of the connecting rod is fixedly connected with the outer side wall of the sealing cover; the closing cap is a shell structure that inside was equipped with the cavity, and the hydraulic stem can drive the connecting rod and use the articulated shaft of bracing piece and connecting rod to prize as the fulcrum the closing cap cover is on cyclic annular boss, just the spring is compressed by the closing cap terminal surface to seal the last port of the cover body.
Such a structure makes the flip cover more stable.
Furthermore, a limiting block used for carrying out positioning control on the material taking mechanism is arranged on the connecting rod.
Through the limiting block, each station device can be accurately positioned by the material taking mechanism.
Furthermore, a photosensitive resistor is arranged in the limiting block, and the photosensitive resistor and the hydraulic rod driving circuit are located in the same circuit loop.
The photosensitive resistor is a common device, can sensitively detect whether light is sheltered from, can pinpoint, and when transport mechanism moved to station device top, the photosensitive resistor was sheltered from, and then made the action of drive circuit drive hydraulic stem in the same circuit return circuit, opened the closing cap.
Drawings
Fig. 1 is a schematic structural diagram of a first embodiment of the present invention.
Fig. 2 is a schematic structural view of a feeding mechanism according to an embodiment of the present invention.
Fig. 3 is a schematic structural view of a material taking mechanism in the first embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a flip assembly according to a first embodiment of the present invention.
Fig. 5 is a top view of fig. 4.
Fig. 6 is a sectional view in the direction a-a of fig. 5.
Fig. 7 is an enlarged view of I.
Detailed Description
The following is further detailed by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a support 1, a slide rail 2, a conveying mechanism 3, a preheating furnace 4, a nitriding furnace 5, an oxygen permeation furnace 6, a hanging part 301, a feeding barrel 302, a limiting barrel 303, a reinforcing plate 304, a push rod 305, a feeding pipe 306, a cover plate 311, a material taking barrel 312, a lifting handle 313, a notch 314, a sealing cover 401, a connecting rod 402, a supporting rod 403, a hydraulic rod 404, a limiting block 405, an air pipe 406, an annular boss 407, a spring 408, a cover body 409, a small conical cavity 410 and a large conical cavity 411.
Example one
The embodiment is basically as shown in the attached figure 1: the QPQ treatment production line formed in the embodiment is suitable for production of products such as a cylinder, a plunger and a piston rod in the hydraulic support 1 for the underground coal mine.
The QPQ treatment production line in the embodiment comprises a preheating furnace 4, a nitriding furnace 5 and an oxygen permeation furnace 6 which are connected in sequence, wherein the preheating furnace 4, the nitriding furnace 5 and the oxygen permeation furnace 6 are provided with openings arranged at the top ends; above the preheating furnace 4, nitriding furnace 5 and oxygen permeation furnace 6, a transfer mechanism 3 for conveying the work pieces is provided.
As shown in fig. 2 and 3, the conveying mechanism includes a feeding mechanism and a material taking mechanism matched with the feeding mechanism; an ion penetrating agent for QPQ treatment is arranged in the feeding mechanism; the material taking mechanism is used for automatically taking out or putting in the ion permeating agent and the workpiece from each opening in sequence.
The feeding mechanism comprises slide rails 2 arranged above the preheating furnace 4, the nitriding furnace 5 and the oxygen permeation furnace 6, and a feeding barrel 302 connected with the slide rails 2 in a sliding manner. The feeding barrel 302 comprises a hanging part 301, a hook is connected to the hanging part 301, a sliding block is connected to the sliding rail 2 in a sliding mode, and the hook is arranged on the bottom face of the sliding block.
An opening for pouring the ionic penetrant is formed in the top end of the feeding barrel 302, and a feeding pipe 306 for flowing the ionic penetrant out is connected to the bottom end of the feeding barrel 302; feed tube 306 has a smaller diameter than feed barrel 302.
The lower end of the feeding barrel 302 is connected with a limiting barrel 303 for limiting the material taking mechanism; the limiting cylinder 303 is in an open shape with a small upper part and a large lower part. Three reinforcing plates 304 are uniformly distributed between the limiting barrel 303 and the feeding barrel 302.
The lower end of the feeding barrel 302 is also provided with a push rod 305, and the push rod 305 passes through the feeding pipe 306 and is opposite to the outlet direction at the bottom of the feeding pipe 306. In this embodiment, the push rod 305 is an electric push rod 305, and the baffle plate blocking the outlet of the feeding pipe 306 can slide open by stretching and retracting to expose the outlet of the feeding pipe 306, so that the ion diffusion agent or the workpiece in the feeding barrel 302 can fall down from the outlet to the preheating furnace, the oxygen diffusion furnace 6, the nitriding furnace 5 or the material taking mechanism aligned with the feeding pipe 306.
In this embodiment, a tapered tube with a gradually decreasing opening is welded between the feeding tube 306 and the feeding barrel 302. The junction of the conical barrel and the feed barrel 302 and the feed tube 306 is smoothed without gaps and dead corners.
As shown in fig. 3, the material taking mechanism in this embodiment includes a material taking barrel 312 with an open top end, a cover plate 311 is welded on the top end of the material taking barrel 312, the cover plate 311 occupies one half to two thirds of the open area of the material taking barrel 312, and the cover plate 311 seals one side of the open top of the material taking barrel 312, that is, the cover plate 311 seals one side of the toppling direction of the material taking barrel 312. The dispensing bucket 312 has a pouring opening protruding outward in the pouring direction, and the cover 311 has a notch 314 at a position corresponding to the pouring opening for exposing the pouring opening. The area of the gap 314 is one fiftieth to one twentieth of the area of the top opening of the extracting bucket 312.
Two mounting rings are connected to the top end of the material taking barrel 312, and a handle 313 for lifting the material taking barrel 312 is connected through the two mounting rings.
The top opening of the material taking barrel 312 is larger than the bottom outlet of the feeding pipe 306 and smaller than the bottom outlet of the limiting barrel 303. The take-up barrel 312 is restrained by an annular space between the restraining barrel 303 and the delivery barrel 302.
As shown in fig. 4 to 7, the preheating furnace 4, the nitriding furnace 5 and the oxygen diffusion furnace 6 in this embodiment each include a furnace body with an open top end, and a furnace cover is mounted on the upper end of the furnace body. The furnace cover can be turned over, and the turning direction of the furnace cover is different from the traveling direction of the conveying mechanism. In this embodiment, the turning direction of the furnace cover and the traveling direction of the conveying mechanism, i.e. the installation direction of the slide rail 2, form an included angle of ninety degrees.
The furnace cover is provided with a cover body 409 communicated with the furnace body and a sealing cover 401 used for covering the cover body 409, and a sealing cover 401 assembly used for pushing the sealing cover 401 to automatically turn is arranged in the cover body 409.
The furnace cover comprises a cylindrical cover body 409 with openings at the upper end and the lower end, and an air pipe 406 tangent to the arc wall is arranged on the arc wall at one side of the cover body 409; an annular boss 407 is arranged at the upper end of the cover body 409, the annular boss 407 is coaxial with the cover body 409, a spring 408 is sleeved outside the annular boss, and the bottom end of the spring 408 is fixed on the upper end face of the cover body 409.
A flip cover component is arranged in the cover body 409, the cover 401 component comprises a triangular bracket 1 formed by hinging a support rod 403, a hydraulic rod 404 and a connecting rod 402 in pairs, and one end of the connecting rod 402 is fixedly connected with the outer side wall of the cover 401; the cover 401 is a shell structure with a cavity inside, the hydraulic rod 404 can drive the connecting rod 402 to pry the cover 401 to cover on the annular boss by taking the hinge shaft of the support rod 403 and the connecting rod 402 as a fulcrum, and the spring 408 is compressed by the end face of the cover 401, so that the upper port of the cover 409 is sealed.
The annular boss is conical, and the large end of the annular boss is fixedly connected with the upper end of the cover body 409; the concave cavity comprises a large conical cavity 411 and a small conical cavity 410 which are coaxially communicated from bottom to top in sequence; when the sealing cover 401 covers the annular boss, the small end of the annular boss extends into the small conical cavity 410, and the step at the joint of the large conical cavity 411 and the small conical cavity 410 is pressed on the top end of the spring 408. The conical structure can enable the sealing cover 401 and the annular boss to be tightly occluded, the coaxiality is good, collision is not easy to generate under the guiding effect of the conical surface, and the bearing force in the vertical direction is stronger.
The spring 408 is a conical spring 408, and the large end face thereof is fixed on the upper end face of the cover 409. Conical spring 408 matches with big conical cavity 411 and conical cyclic annular boss, stable in structure, and the interlock contact is more steady, and buffering damping effect is better.
The step wall of the step is an arc wall, and the arc radius of the arc wall is not smaller than the wire radius of the conical spring 408, so that the end face of the conical spring 408 can be better contacted and attached with the step.
The connecting rod 402 is provided with a limiting block 405 for positioning control with the material taking mechanism.
In this embodiment, a photosensitive resistor is provided in the limiting block 405, and the photosensitive resistor and the hydraulic rod 404 driving circuit are located in the same circuit loop.
Example two
Compared with the first embodiment, in the present embodiment, a cooling box with an open top end is further installed behind the oxygen permeation furnace 6, a plurality of cooling basins arranged in an array are arranged in the cooling box, and the material taking barrel 312 in the material taking mechanism can directly dump the processed ion permeation agent or the workpiece directly into the cooling basins for cooling.
EXAMPLE III
Compared with the first embodiment, in the first embodiment, a protection blanket for preventing fire, explosion and other dangers is paved on the ground among the preheating furnace 4, the oxygen permeation furnace 6 and the nitriding furnace 5, the protection blanket is made of high-temperature-resistant ceramics, the protection blanket is of a hollow structure, an accommodating cavity protruding upwards is integrally formed and connected to the top surface of the protection blanket, a fire extinguishing agent is filled in the accommodating cavity, and the top end of the accommodating cavity is connected with a switch for opening the accommodating cavity.
The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (10)
- A QPQ processing production line, characterized in that: the device comprises a preheating furnace, a nitriding furnace and an oxygen permeation furnace which are connected in sequence, wherein the preheating furnace, the nitriding furnace and the oxygen permeation furnace are provided with openings arranged at the top ends; a conveying mechanism for conveying workpieces is arranged above the preheating furnace, the nitriding furnace and the oxygen permeation furnace; the conveying mechanism comprises a feeding mechanism and a material taking mechanism matched with the feeding mechanism; an ion penetrating agent for QPQ treatment is arranged in the feeding mechanism; the material taking mechanism is used for automatically taking out or putting in the ion permeating agent and the workpiece from each opening in sequence.
- 2. The QPQ processing production line according to claim 1, characterized in that: the feeding mechanism comprises slide rails arranged above the preheating furnace, the nitriding furnace and the oxygen permeation furnace and a feeding barrel connected with the slide rails in a sliding mode.
- 3. The QPQ processing production line according to claim 2, characterized in that: the feeding barrel comprises a hanging part, a hook is connected to the hanging part, a sliding block is connected to the sliding rail in a sliding mode, and the hook is arranged on the bottom face of the sliding block.
- 4. The QPQ processing production line according to claim 3, wherein: an opening for pouring an ion permeating agent is formed in the top end of the feeding barrel, and a feeding pipe for flowing out the ion permeating agent is connected to the bottom end of the feeding barrel; the diameter of the feeding pipe is smaller than that of the feeding barrel.
- 5. The QPQ processing production line according to claim 4, wherein: the lower end of the material feeding barrel is connected with a limiting barrel used for limiting the material taking mechanism.
- 6. The QPQ processing production line according to claim 1, characterized in that: the top ends of the preheating furnace, the nitriding furnace and the oxygen permeation furnace are provided with furnace covers for covering the openings; the furnace cover can be turned over, and the turning direction of the furnace cover is different from the traveling direction of the conveying mechanism.
- 7. The QPQ processing production line according to claim 6, wherein: the furnace cover is provided with a cover body communicated with the furnace body and a sealing cover used for covering the cover body, and a sealing cover assembly used for pushing the sealing cover to automatically turn over is arranged in the cover body.
- 8. The QPQ processing production line according to claim 7, characterized in that: the sealing cover assembly comprises a triangular bracket formed by hinging a support rod, a hydraulic rod and a connecting rod in pairs, and one end of the connecting rod is fixedly connected with the outer side wall of the sealing cover; the closing cap is a inside shell structure who is equipped with the cavity, and the hydraulic stem can drive the connecting rod and use the articulated shaft of bracing piece and connecting rod to prize as the fulcrum the closing cap cover is on cyclic annular boss, and cyclic annular boss outside cover has the spring, just the spring is compressed by the closing cap terminal surface to seal the last port of the cover body.
- 9. The QPQ processing production line according to claim 8, characterized in that: and the connecting rod is provided with a limiting block for positioning control with the material taking mechanism.
- 10. The QPQ processing production line according to claim 9, characterized in that: a photosensitive resistor is arranged in the limiting block, and the photosensitive resistor and the hydraulic rod driving circuit are located in the same circuit loop.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021435672.2U CN212655846U (en) | 2020-07-20 | 2020-07-20 | QPQ treatment production line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021435672.2U CN212655846U (en) | 2020-07-20 | 2020-07-20 | QPQ treatment production line |
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| CN212655846U true CN212655846U (en) | 2021-03-05 |
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| CN202021435672.2U Active CN212655846U (en) | 2020-07-20 | 2020-07-20 | QPQ treatment production line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113736974A (en) * | 2021-07-28 | 2021-12-03 | 安庆帝伯格茨缸套有限公司 | Preparation process of high-strength isothermal bainite diesel engine cylinder sleeve |
| CN115522160A (en) * | 2022-10-12 | 2022-12-27 | 济源市丰泽特钢实业有限公司 | QPQ treatment production line |
-
2020
- 2020-07-20 CN CN202021435672.2U patent/CN212655846U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113736974A (en) * | 2021-07-28 | 2021-12-03 | 安庆帝伯格茨缸套有限公司 | Preparation process of high-strength isothermal bainite diesel engine cylinder sleeve |
| CN113736974B (en) * | 2021-07-28 | 2022-12-09 | 安庆帝伯格茨缸套有限公司 | Preparation process of high-strength isothermal bainite diesel engine cylinder sleeve |
| CN115522160A (en) * | 2022-10-12 | 2022-12-27 | 济源市丰泽特钢实业有限公司 | QPQ treatment production line |
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