Forge piece quenching device

Abstract

The utility model discloses a forge piece quenching device which comprises a quenching pool and guide rods arranged at each corner position of the quenching pool, a bearing plate is arranged in the quenching pool, the bearing plate is vertically sleeved on the plurality of guide rods in a sliding manner, springs are sleeved on the guide rods, the springs are arranged between the bottom surface of the quenching pool and the bearing plate, and the bearing plate is arranged on the bottom surface of the quenching pool. A plurality of liquid passing holes are formed in the bearing plate in a matrix mode, and a drainage pipe is arranged at the bottom of the quenching pool. The forge piece quenching device does not need an additional stirring device, and the forge piece quenching effect is improved.

Description

Technical Field

[0001] The utility model relates to the field of forging quenching, and particularly to a forging quenching device. Background Art

[0002] Quenching treatment of forgings is a common metal heat treatment process, and its main purpose is to improve the mechanical properties and service life of forgings. The quenching process usually includes steps such as heating, heat preservation, rapid cooling and tempering. After being heated to a certain temperature, the metal is rapidly cooled, usually in water, oil or other media, to form a hardened surface.

[0003] Chinese Patent CN201210189134.3 discloses a ring forging quenching device, which includes a water tank for quenching the ring forging. A water inlet pipe is arranged in the water tank, the end of the water inlet pipe is located at the central part of the water tank and the water outlet direction of the water inlet pipe is vertically upward. A plurality of impellers and driving devices for driving the impellers to rotate are uniformly arranged around the water tank, and each impeller faces the central part of the water tank.

[0004] This ring forging quenching device relies on the driving device to drive the impellers to rotate to make the temperature of the quenching medium more uniform. However, this method requires an additional impeller for stirring, which requires additional energy loss and has poor energy-saving effect. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a forging quenching device which does not need to rely on an additional stirring device and can improve the quenching effect of forgings.

[0006] To achieve the above purpose, the utility model provides a forging quenching device, which includes a quenching pool and guide rods arranged at each corner position of the quenching pool. A bearing plate is arranged in the quenching pool, the bearing plate is vertically slidably sleeved on a plurality of the guide rods, a spring is sleeved on the guide rod, and the spring is arranged between the bottom surface of the quenching pool and the bearing plate. A plurality of liquid passing holes are arranged in a matrix on the bearing plate, and a drain pipe is arranged at the bottom of the quenching pool.

[0007] Preferably, a plurality of guide holes corresponding to the guide rods one by one are arranged on the bearing plate, a nest is inserted into the guide hole, a flange ring is arranged at the upper end of the nest, and the flange ring is connected with the bearing plate through a plurality of first bolts.

[0008] Preferably, a plurality of vertically extending semi-cylinders are arranged on the inner wall of the nest, the side surface of the semi-cylinder is in sliding contact with the outer wall of the guide rod, and a plurality of first through holes corresponding to the first bolts are arranged on the flange ring.

[0009] Preferably, a right-angle sleeve is detachably installed at each corner position of the quenching pool. A positioning block is fixedly connected to the inner side of the right-angle sleeve, and a positioning hole for sleeving the upper end of the guide rod is provided on the positioning block.

[0010] Preferably, a right-angle slot is provided at the bottom side of the right-angle sleeve, a second through hole is provided on the outer side of the right-angle sleeve, a threaded hole corresponding to the second through hole is provided on the outer side of the quenching pool, and a second bolt screwed into the threaded hole is inserted into the second through hole.

[0011] Preferably, a limit post is provided at the bottom of the guide rod, and the diameter of the limit post is larger than that of the guide rod.

[0012] Preferably, the aperture of the liquid passing hole gradually increases from top to bottom.

[0013] According to the above technical solution, the present utility model provides a forging quenching device, which includes a quenching pool and guide rods arranged at each corner position of the quenching pool. A bearing plate is arranged in the quenching pool, and the bearing plate is vertically slidably sleeved on a plurality of the guide rods. A spring is sleeved on the guide rods, and the spring is arranged between the bottom surface of the quenching pool and the bearing plate. A plurality of liquid passing holes are arranged in a matrix on the bearing plate, and a drain pipe is arranged at the bottom of the quenching pool.

[0014] The usage method and beneficial effects of the forging quenching device are as follows: Before use, close the gate valve on the drain pipe, and then fill the quenching pool with quenching liquid so that the quenching liquid can submerge the bearing plate and be higher than the height of at least one forging in the natural state of the bearing plate. Then, hoist the forging onto the bearing plate by a hoisting device. The forging is first quenched in the liquid level above the bearing plate. Subsequently, the forging will press down the bearing plate under the guidance of the guide rod due to the action of gravity. During the process of the bearing plate being pressed down, the spring is compressed, and the quenching liquid in the bearing plate is also compressed. The compressed quenching liquid will surge through the liquid passing holes. On the one hand, it stirs the quenching liquid above the bearing plate, making the temperature of the quenching liquid above the bearing plate more balanced. On the other hand, the quenching liquid surging from below the bearing plate mixes with the quenching liquid above the bearing plate, cooling the temperature of the quenching liquid above the bearing plate, so that the temperature of the quenching liquid around the forging rises relatively slowly and the temperature difference of the quenching liquid around the forging is reduced, thereby increasing the quenching effect. In addition, the forging quenching device relies on the gravity of the forging itself to improve the mixing effect of the quenching liquid, which is more energy-saving.

[0015] Other features and advantages of the present utility model will be described in detail in the subsequent specific implementation part. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the accompanying drawings:

[0017] Figure 1 is a schematic structural diagram of a preferred embodiment of a forging quenching device;

[0018] Figure 2 is a top view structural diagram of a preferred embodiment of a forging quenching device;

[0019] Figure 3 is Figure 2 a schematic A-A sectional structure diagram of

[0020] Figure 4 is a schematic structural diagram of a preferred embodiment of a nested part;

[0021] Figure 5 is a schematic structural diagram of a preferred embodiment of a right-angle sleeve;

[0022] Figure 6 is a schematic structural diagram of a quenching pool provided with guide rods.

[0023] Explanation of reference numerals

[0024] 1 - Quenching pool; 2 - Drain pipe; 3 - Bearing plate; 4 - Flange ring; 5 - First bolt; 6 - Guide rod; 7 - Liquid passing hole; 8 - Right-angle sleeve; 9 - Second bolt; 10 - Positioning block; 11 - Spring; 12 - Limit post; 13 - Nested part; 14 - First through hole; 15 - Semi-cylinder; 16 - Positioning hole; 17 - Outside of the quenching pool; 18 - Inside of the right-angle sleeve; 19 - Second through hole; 20 - Screw hole. Specific embodiments

[0025] The following provides a detailed description of the specific embodiments of the present utility model with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present utility model and do not limit the present utility model.

[0026] In the present utility model, unless otherwise stated, the directional terms such as "up and down, left and right, front and back, inside and outside" included in the terms only represent the orientation of the term in its normal use state, or the common name understood by those skilled in the art, and should not be regarded as a limitation to the term.

[0027] See Figures 1-6The forging quenching device shown includes a quenching pool 1 and guide rods 6 arranged at each corner position of the quenching pool 1. A bearing plate 3 is arranged in the quenching pool 1. The bearing plate 3 is vertically slidably sleeved on a plurality of the guide rods 6. A spring 11 is sleeved on the guide rod 6. The spring 11 is arranged between the bottom surface of the quenching pool 1 and the bearing plate 3. A plurality of liquid passing holes 7 are arranged on the bearing plate 3 in a matrix arrangement. A drain pipe 2 is arranged at the bottom of the quenching pool 1.

[0028] By implementing the above technical solution, before use, close the gate valve on the drain pipe 2, and then fill the quenching pool 1 with quenching liquid so that the quenching liquid can submerge the bearing plate 3 and be higher than the height of at least one forging in the natural state of the bearing plate 3. Then, use a hoisting device to hoist the forging onto the bearing plate 3. The forging is first quenched in the liquid level above the bearing plate 3. Subsequently, the forging will press down the bearing plate 3 under the action of gravity and be guided by the guide rod 6. During the process of the bearing plate 3 being pressed down, the spring 11 is compressed, and the quenching liquid in the bearing plate 3 is also compressed. The compressed quenching liquid will surge upward through the liquid passing holes 7. On the one hand, it stirs the quenching liquid above the bearing plate 3, making the temperature of the quenching liquid above the bearing plate 3 more balanced. In addition, the quenching liquid surging upward below the bearing plate 3 mixes with the quenching liquid above the bearing plate 3, cooling the temperature of the quenching liquid above the bearing plate 3, so that the temperature of the quenching liquid around the forging rises relatively slowly and the temperature difference of the quenching liquid around the forging is reduced, thereby increasing the quenching effect. In addition, this forging quenching device relies on the gravity of the forging itself to improve the stirring effect of the quenching liquid, which is more energy-saving compared to external force drive, such as impeller-driven stirring of the quenching liquid.

[0029] In this embodiment, a plurality of guide holes corresponding to the guide rods 6 one by one are arranged on the bearing plate 3. A nest 13 is inserted into the guide holes. A flange ring 4 is arranged at the upper end of the nest 13. The flange ring 4 and the bearing plate 3 are connected by a plurality of first bolts 5. By detachably installing the nest 13 on the bearing plate 3 through the first bolts 5, the detachable replacement of the nest 13 is realized.

[0030] In this embodiment, a plurality of vertically extending semi-cylinders 15 are arranged on the inner wall of the nest 13. The side surface of the semi-cylinder 15 is in sliding contact with the outer wall of the guide rod 6. A plurality of first through holes 14 corresponding to the first bolts 5 are arranged on the flange ring 4. Through such a setting, the contact area between the inner wall of the nest 13 and the guide rod 6 is reduced, thereby increasing the smoothness of the vertical movement of the bearing plate 3.

[0031] In this embodiment, a right-angle sleeve 8 is detachably installed at each corner position of the quenching pool 1. A positioning block 10 is fixedly connected to the inner side 18 of the right-angle sleeve. A positioning hole 16 for sleeving the upper end of the guide rod 6 is provided on the positioning block 10. Through such a setting, on the one hand, the stability of the guide rod 6 is increased by the positioning block 10, and on the other hand, the upper end of the guide rod 6 is provided with a stop function by the positioning block 10 to stop the upper end of the bearing plate 3.

[0032] In this embodiment, in order to further provide a right-angle sleeve 8, a right-angle slot is provided on the bottom side of the right-angle sleeve 8, and a second through hole 19 is provided on the outer side of the right-angle sleeve 8. A threaded hole 20 corresponding to the second through hole 19 is provided on the outer side 17 of the quenching pool. A second bolt 9 screwed into the threaded hole 20 is inserted into the second through hole 19. When assembling the right-angle sleeve 8, after aligning the right-angle slot with the corresponding position of the quenching pool 1, it is inserted downward onto the quenching pool 1. At the same time, the positioning hole 16 is inserted onto the upper end of the guide rod 6, and then the right-angle sleeve 8 is fixed by screwing the second bolt 9 through the second through hole 19 and into the threaded hole 20.

[0033] In this embodiment, a limiting column 12 is provided at the bottom of the guide rod 6, and the diameter of the limiting column 12 is larger than the diameter of the guide rod 6. Through the setting of the limiting column 12, the lower part of the bearing plate 3 can be limited, avoiding excessive downward movement of the bearing plate 3 resulting in excessive compression of the spring 11 and causing damage to the spring 11.

[0034] In this embodiment, the aperture of the liquid passing hole 7 gradually increases from top to bottom. Through such a setting, the water intake area at the bottom of the liquid passing hole 7 is increased, and the flow rate of the quenching liquid passing through also gradually increases as the aperture decreases. After the quenching liquid flows to the upper side of the bearing plate 3, the mixing effect of the quenching liquid is further increased under the flow of the accelerating quenching liquid.

[0035] The elastic coefficient of the spring 11 in the present utility model is selected according to the weight of the forging to be quenched, and it should be ensured that the forging can be compressed downward by a certain distance after being placed on the bearing plate 3, for example, it can be compressed downward by 10 - 30 cm.

[0036] The preferred embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present utility model, various simple modifications can be made to the technical solutions of the present utility model, and these simple modifications all belong to the protection scope of the present utility model.

[0037] In addition, it should be noted that, in the above specific embodiments, the various specific technical features described can be combined in any suitable manner without conflict. To avoid unnecessary repetition, the present utility model will not separately describe various possible combination methods.

[0038] In addition, any combination can be made among various different embodiments of the present utility model, as long as it does not violate the idea of the present utility model, and it should equally be regarded as the content disclosed by the present utility model.

Claims

1. A forging quenching device, characterized in that, The forging quenching device includes a quenching pool (1) and guide rods (6) arranged at each corner position of the quenching pool (1). A bearing plate (3) is arranged in the quenching pool (1), and the bearing plate (3) is vertically slidably sleeved on a plurality of the guide rods (6). A spring (11) is sleeved on the guide rod (6), and the spring (11) is arranged between the bottom surface of the quenching pool (1) and the bearing plate (3). A plurality of liquid passing holes (7) are arranged in a matrix on the bearing plate (3), and a drain pipe (2) is arranged at the bottom of the quenching pool (1).

2. The forging quenching device according to claim 1, wherein, A plurality of guide holes corresponding to the guide rods (6) one by one are arranged on the bearing plate (3). A nest (13) is inserted into the guide holes. A flange ring (4) is arranged at the upper end of the nest (13), and the flange ring (4) is connected to the bearing plate (3) by a plurality of first bolts (5).

3. The forging quenching device according to claim 2, wherein, A plurality of vertically extending semi-cylinders (15) are arranged on the inner wall of the nest (13), and the side surface of the semi-cylinder (15) is in sliding contact with the outer wall of the guide rod (6). A plurality of first through holes (14) corresponding to the first bolts (5) are arranged on the flange ring (4).

4. The forging quenching device according to claim 1, characterized in that, A right-angle sleeve (8) is detachably installed at each corner position of the quenching pool (1). A positioning block (10) is fixedly connected to the inner side (18) of the right-angle sleeve. A positioning hole (16) for sleeving the upper end of the guide rod (6) is arranged on the positioning block (10).

5. The forging quenching device according to claim 4, wherein, A right-angle slot is arranged at the bottom side of the right-angle sleeve (8), and a second through hole (19) is arranged on the outer side of the right-angle sleeve (8). A screw hole (20) corresponding to the second through hole (19) is arranged on the outer side (17) of the quenching pool. A second bolt (9) screwed into the screw hole (20) is inserted into the second through hole (19).

6. The forging quenching device according to claim 1, characterized in that, A limit post (12) is arranged at the bottom of the guide rod (6); The diameter of the limit post (12) is larger than the diameter of the guide rod (6).

7. The forging quenching device according to any one of claims 1-6, characterized in that, The aperture of the liquid passing hole (7) gradually increases from top to bottom.

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