Metal part quenching equipment

Abstract

The utility model discloses quenching equipment for metal pieces, which is used for cooling and heating workpieces in quenching. Comprising a receiving hopper, a quenching channel, a receiving groove and an oil collecting groove, the material receiving hopper comprises a first box body, an inclined material receiving plate is arranged in the first box body, a first gap is formed between the lower end of the material receiving plate and the first box body, a first oil spraying pipe is arranged above the material receiving plate, and a plurality of first oil spraying holes are formed in a pipe body; the quenching channel comprises a quenching unit, the quenching unit comprises a second box body, a material guiding plate is obliquely arranged in the second box body, a second gap is formed between the lower end of the material guiding plate and the second box body, a second oil spraying pipe is arranged above the material guiding plate, a second oil spraying hole is formed in a pipe body, and the inclination direction of the material guiding plate is opposite to that of the material receiving plate; the material receiving groove comprises a frame body and an inclined filter groove, the frame body is connected with the filter groove through a first spring, filter holes are formed in the bottom surface of the filter groove, the upper end part of the filter groove is supported below the lower end part of the material guide plate, and a vibration device is arranged on the filter groove; the oil collecting groove has a cavity and an oil outlet pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of metal part quenching, in particular to a metal part quenching device. Background Art

[0002] Quenching is a heat treatment process. Steel quenching involves heating the steel to a temperature above the critical temperature Ac3 (for hypoeutectoid steel) or Ac1 (for hypereutectoid steel), holding the temperature for a period of time to fully or partially austenitize it, and then rapidly cooling it to below Ms (or isothermally near Ms) at a rate greater than the critical cooling rate to undergo martensite (or bainite) transformation.

[0003] In order to achieve efficient batch quenching operations, a longer tunnel-type heating device can be set up to heat the workpieces that need to be quenched. During the transportation process, the workpieces are heated to a temperature above the critical temperature Ac3 (hypoeutectoid steel) or Ac1 (hypereutectoid steel) and kept warm for a period of time. Then, after leaving the heating device, they quickly enter a dedicated metal quenching device. The metal quenching device sprays a large amount of quenching liquid on the heated workpiece, and the quenching liquid cools the workpiece so that the workpiece is quickly cooled to below Ms (or isothermally near Ms) at a cooling rate greater than the critical cooling rate to undergo martensite (or bainite) transformation and complete quenching. Utility Model Content

[0004] The purpose of the utility model is to provide a metal part quenching device, which is used for rapid cooling of the workpiece after it is heated during the quenching process.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] and a tube connecting the dischar e side of the pump with a plug in the forward end of the crank case, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, said tube having a check valve in it at the pump end, and said former tube which connects the pump to the oil drain plug, and said former tube which connects the pump to the oil drain plug, and said former tube which connects the pump to the oil drain plug, The top of the oil drain plug is connected with the oil pump sleeve, and the bottom of the oil drain plug is connected with the oil pump sleeve, and the oil pump sleeve has a round shank to contact with the oil pump sleeve.

[0007] On the basis of the above solution and as a preferred solution of the above solution: a buffer plate is provided in the upper end direction of the material receiving plate, the buffer plate is provided on the material receiving plate, and the buffer plate and the material receiving plate are supported by a plurality of second springs.

[0008] On the basis of the above scheme and as a preferred scheme of the above scheme: the quenching channel is provided with a plurality of quenching units, and the plurality of quenching units are arranged opposite to each other from top to bottom, and the upper end of the guide plate of the lower quenching unit is connected to the lower end of the guide plate of the upper quenching unit, and the inclination directions of the two adjacent guide plates are opposite; the upper end of the uppermost guide plate is connected to the lower end of the receiving plate; the upper end of the oil collecting trough is connected to the lower end of the lowermost guide plate.

[0009] On the basis of the above solution and as a preferred solution of the above solution: the frame is extended vertically upward, and the first box, the second box and the oil collecting tank are all fixedly connected to the frame.

[0010] On the basis of the above solution and as a preferred solution of the above solution: a material guide trough extending away from the oil collecting trough is provided at the lower end of the filter tank.

[0011] On the basis of the above solution and as a preferred solution of the above solution: a ridge extending along the width direction of the filter tank is provided at the lower end of the bottom of the filter tank.

[0012] The utility model has the following beneficial effects:

[0013] The metal part quenching equipment of the utility model is used for the rapid cooling process of a workpiece after it is heated during the quenching process.

[0014] When in use, the metal part quenching equipment is set at the lower side of the discharge end of the tunnel-type heating equipment or other heating equipment, and the receiving hopper is connected to the discharge port of the heating equipment, so that the workpiece flowing out of the discharge port of the heating equipment can be received by the upper end of the receiving plate. After the workpiece enters the receiving plate, it rolls or slides downward and enters the quenching channel after passing through the first gap. The workpiece entering the quenching unit will first fall into the upper end direction of the guide plate, and then roll or slide down along the slope of the guide plate and flow out of the quenching unit from the second gap. First, during the whole process, the first oil injection hole of the first oil injection pipe will continuously spray a large amount of quenching liquid onto the workpiece in the first box, and at the same time, the second oil injection hole of the second oil injection pipe will also continuously spray a large amount of quenching liquid onto the workpiece in the second box. By spraying a large amount of quenching liquid on the workpiece, the effect of rapidly cooling the workpiece at a cooling rate greater than the critical cooling rate is achieved.

[0015] Among them, the cooling flow path is extended by the action of the receiving hopper and the quenching channel, and the falling speed of the workpiece is slowed down by the alternating slope of the receiving plate and the guide plate, which further delays the cooling residence time of the workpiece and further ensures the quenching effect.

[0016] Among them, the workpiece falls by gravity during the quenching process, and does not require a third power, which saves energy.

[0017] The receiving plate is equipped with a first filter hole, and the guide plate has a second filter hole. This allows the quenching liquid, heated by the workpiece after cooling it, to fall smoothly and leave the workpiece, ensuring that the workpiece is continuously exposed to the newly sprayed coolant, thus ensuring the quality of the quenching. At the same time, the coolant that naturally leaks from the upper layer to the lower layer is also naturally cooled during the fall.

[0018] Among them, after the coolant and the workpiece enter the receiving trough, the filter trough vibrating (shaking) driven by the vibration device can quickly separate the workpiece and the coolant. At the same time, the first spring can eliminate or reduce the impact of the filter trough shaking on the frame.

[0019] The oil collecting tank can collect the quenching liquid and then discharge the quenching liquid from the oil outlet pipe, which can be recycled after being discharged.

[0020] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of the metal parts quenching equipment of the present utility model;

[0022] Figure 2 This is a cross-sectional view of the metal parts quenching equipment of the present utility model;

[0023] Figure 3 This is a schematic cross-sectional view of the material receiving hopper of the present utility model;

[0024] Figure 4 This is a schematic diagram of the quenching unit of the present invention. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention are clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] See Figure 1-4 The utility model discloses a metal part quenching device, which can be used for the rapid cooling process of the workpiece after it is heated during the quenching process.

[0027] In the embodiment of the present disclosure, Figure 1 and Figure 2 As shown, the metal part quenching equipment includes a material receiving hopper 100, a quenching channel 200, a material receiving trough 300 and an oil collecting trough 400.

[0028] in, Figure 3As shown, the material receiving hopper 100 includes a first box body 101 that is not closed at both ends, a material receiving plate 102 and a first oil injection pipe 105 are provided in the first box body 101, a plurality of hollow first filter holes 103 are provided on the material receiving plate 102, the material receiving plate 102 is inclined from top to bottom, so that the upper surface of the material receiving plate 102 forms a slope transitioning from top to bottom, and a first gap 104 is provided between the lower end of the material receiving plate 102 and the inner wall of the first box body 101, the first oil injection pipe 105 is provided above the material receiving plate 102, one end of the first oil injection pipe 105 is closed, and the other end is provided with an interface 106, and a plurality of first oil injection holes 107 are arranged along the length direction on the pipe body. A plurality of first oil injection pipes 105 can be provided so that the oil injection direction is dispersed toward different areas in the first box body 101.

[0029] The quenching channel 200 is arranged directly below the receiving hopper 100 and includes at least one quenching unit 201, such as Figure 4 As shown, the quenching unit 201 includes a second box body 202 that is not closed at both ends, and a guide plate 203 and a second oil injection pipe 206 are provided in the second box body 202. The guide plate 203 is covered with a plurality of hollow second filter holes 204. The guide plate 203 is inclined from top to bottom, so that the upper surface of the guide plate 203 forms a slope transitioning from top to bottom. A second gap 205 is provided between the lower end of the guide plate 203 and the inner wall of the second box body 202. The second oil injection pipe 206 is provided above the guide plate 203. One end of the second oil injection pipe 206 is closed and the other end is provided with an interface 106. A plurality of second oil injection holes 207 are arranged along the length direction of the pipe body. The upper part of the second box body 202 of the quenching unit 201 is opposite to the lower part of the first box body 101, and the inclination direction of the guide plate 203 is opposite to the inclination direction of the receiving plate 102. A plurality of second fuel injection pipes 206 may be provided so that the fuel injection directions are dispersedly directed toward different areas within the second housing 202 .

[0030] Among them, Figure 1 and Figure 2 As shown, the material receiving trough 300 is arranged directly below the quenching channel 200, including a support frame 301 and a filter trough 303 connected to the frame 301 through a first spring 302. The bottom surface of the filter trough 303 is covered with hollow filter holes 304. The filter trough 303 is tilted downward, and the upper end is supported under the lower end of the guide plate 203. The tilt direction of the filter trough 303 is opposite to the tilt direction of the guide plate 203, and a vibration device 307 is provided on the filter trough 303. The vibration device 307 can be purchased as a durable and stable pneumatic vibrator.

[0031] The oil collecting tank 400 has a concave cavity 401 with an open top. The upper opening of the concave cavity 401 is connected to the bottom of the filter tank 303. An oil outlet pipe 402 connected to the concave cavity 401 is provided at the bottom of the oil collecting tank 400.

[0032] When in use, the metal part quenching equipment is set on the lower side of the discharge end of the tunnel-type heating equipment or other heating equipment, and the receiving hopper 100 is docked with the discharge port of the heating equipment, so that the workpiece flowing out of the discharge port of the heating equipment can be received by the upper end of the receiving plate 102. After the workpiece enters the receiving plate 102, it rolls or slides downward and passes through the first gap 104 into the quenching channel 200. The workpiece entering the quenching unit 201 will first fall into the upper end direction of the guide plate 203, and then roll or slide down along the slope of the guide plate 203 and flow out of the quenching unit 201 from the second gap 205. First, during the entire process, the first oil spray hole 107 of the first oil spray will continuously spray a large amount of quenching liquid onto the workpiece in the first box 101. At the same time, the second oil spray hole 207 of the second oil spray pipe 206 will also continuously spray a large amount of quenching liquid onto the workpiece in the second box 202. By spraying a large amount of quenching liquid on the workpiece, the workpiece can be quickly cooled at a cooling rate greater than the critical cooling rate.

[0033] Among them, the cooling flow path is extended by the action of the receiving hopper 100 and the quenching channel 200, and the alternating slopes of the receiving plate 102 and the guide plate 203 slow down the falling speed of the workpiece, further delaying the cooling residence time of the workpiece and further ensuring the quenching effect.

[0034] Among them, the workpiece falls by gravity during the quenching process, and does not require a third power, which saves energy.

[0035] The receiving plate 102 is provided with a first filter hole 103, and the guide plate 203 is provided with a second filter hole 204. This allows the quenching liquid, heated by the workpiece after cooling it, to fall smoothly and leave the workpiece, ensuring that the workpiece is continuously exposed to the newly ejected coolant, thus ensuring the quality of the quenching. Simultaneously, the coolant naturally leaking from the upper layer to the lower layer is also naturally cooled during its fall.

[0036] Among them, after the coolant and the workpiece enter the receiving trough 300, the filter trough 303 vibrates (shakes) under the drive of the vibration device 307 and can quickly separate the workpiece and the coolant. At the same time, the first spring 302 can eliminate or reduce the impact of the shaking of the filter trough 303 on the frame 301.

[0037] The oil collecting tank 400 can collect the quenching liquid and then discharge the quenching liquid from the oil outlet pipe 402 , which can be recycled after being discharged.

[0038] In some embodiments, the receiving plate 102 may be a high-temperature resistant plastic plate. Since the hardness of a high-temperature workpiece is relatively low, the plastic plate receiving the workpiece can relatively reduce the damage to the workpiece caused by collision.

[0039] In the embodiment of the present disclosure, Figure 3 As shown, in order to reduce or avoid the damage to the high-temperature workpiece due to collision, a buffer plate 108 is provided in the upper end direction of the receiving plate 102. The buffer plate 108 is arranged on the receiving plate 102. A plurality of second spring supports 109 are passed between the buffer plate 108 and the receiving plate 102. The second springs play the role of buffering and shock absorption and reducing the probability of damage due to hard collision. Of course, the buffer plate 108 can also be made of a high-temperature resistant plastic plate.

[0040] In the embodiment of the present disclosure, in order to further extend the cooling flow path during the quenching process of the workpiece, the quenching channel 200 is provided with a plurality of quenching units 201, and the plurality of quenching units 201 are arranged opposite to each other from top to bottom, and the upper end of the guide plate 203 of the lower quenching unit 201 is connected to the lower end of the guide plate 203 of the upper quenching unit 201, and the inclination directions of the two adjacent guide plates are opposite; wherein, the upper end of the uppermost guide plate 203 is connected to the lower end of the receiving plate 102; wherein, the upper end of the oil collecting tank 400 is connected to the lower end of the lowermost guide plate 203.

[0041] In the embodiment of the present disclosure, Figure 1 As shown, the frame 301 extends vertically upward, and the first box 101 , the second box 202 and the oil collecting tank 400 are all fixedly connected to the frame 301 .

[0042] In the embodiment of the present disclosure, a material guide trough 305 extending away from the oil collecting tank 400 is provided at the lower end of the filter tank 303. The material guide trough 305 guides the workpiece outward to facilitate the workpiece to enter the next workstation, such as automatically entering a conveying device such as a lifting conveyor.

[0043] In the embodiment of the present disclosure, a ridge 306 extending along the width direction of the filter tank 303 is provided at the lower end of the bottom of the filter tank 303. The ridge 306 can form a certain barrier to the quenching liquid sliding down along the bottom of the tank to prevent the quenching liquid from flowing out.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A metal part quenching equipment, characterized in that: include: The material receiving hopper includes a first box body that is not closed at both ends, a material receiving plate and a first oil injection pipe are provided in the first box body, a plurality of hollow first filter holes are provided on the material receiving plate, the material receiving plate is inclined from top to bottom, so that the upper surface of the material receiving plate forms a slope transitioning from top to bottom, a first gap is defined between the lower end of the material receiving plate and the inner wall of the first box body, the first oil injection pipe is provided above the material receiving plate, one end of the first oil injection pipe is closed, and the other end is provided with a joint, and a plurality of first oil injection holes are arranged along the length direction of the pipe body; a quenching channel arranged just below the receiving hopper, comprising at least one quenching unit, the quenching unit comprising a second box body which is not closed at both upper and lower ends, a material guide plate and a second oil injection pipe being arranged in the second box body, the material guide plate being covered with a plurality of hollow second filter holes, the material guide plate being inclined from top to bottom so that the upper surface of the material guide plate forms a slope transitioning from top to bottom, a second gap being provided between the lower end of the material guide plate and the inner wall of the second box body, the second oil injection pipe being arranged above the material guide plate, one end of the second oil injection pipe being closed and the other end being provided with an interface, a plurality of second oil injection holes being arranged along the length direction of the pipe body, the upper part of the second box body of the quenching unit being directly opposite to the lower part of the first box body, and the inclination direction of the material guide plate being opposite to the inclination direction of the receiving plate; A receiving trough is provided directly below the quenching channel, comprising a frame for support and a filter trough connected to the frame via a first spring, wherein the bottom surface of the filter trough is covered with hollow filter holes, the filter trough is arranged downwardly in an inclined manner, and the upper end thereof is supported under the lower end of the material guide plate, the inclination direction of the filter trough is opposite to the inclination direction of the material guide plate, and a vibration device is provided on the filter trough; The oil collecting tank has a concave cavity with an open top, the upper opening of the concave cavity is connected to the bottom of the filter tank, and an oil outlet pipe connected to the concave cavity is provided at the bottom of the oil collecting tank.

2. The metal part quenching equipment according to claim 1, characterized in that: A buffer plate is provided in the direction of the upper end portion of the material receiving plate. The buffer plate is provided on the material receiving plate. The buffer plate and the material receiving plate are supported by a plurality of second springs.

3. The metal part quenching equipment according to claim 1, characterized in that: The quenching channel is provided with a plurality of quenching units, and the plurality of quenching units are arranged opposite to each other from top to bottom, the upper end of the guide plate of the lower quenching unit is supported below the lower end of the guide plate of the upper quenching unit, and the inclination directions of the two adjacent guide plates are opposite; The upper end of the uppermost material guide plate is supported below the lower end of the material receiving plate; The upper end portion of the oil collecting tank is connected to the lower end portion of the lowermost material guide plate.

4. The metal part quenching equipment according to claim 1, characterized in that: The frame extends vertically upward, and the first box, the second box and the oil collecting tank are all fixedly connected to the frame.

5. The metal part quenching equipment according to claim 1, characterized in that: A material guide trough extending away from the oil collecting trough is provided at the lower end of the filter trough.

6. The metal part quenching equipment according to claim 1 or 5, characterized in that: A ridge extending along the width direction of the filter tank is provided at the lower end of the bottom of the filter tank.

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