Quenching and cooling device for pin bush

Abstract

The invention relates to the technical field of pin bush quenching, in particular to a pin bush quenching cooling device which comprises a supporting seat, an outer cooling mechanism is arranged on the supporting seat, a buffer seat is further arranged on the supporting seat, the buffer seat and the supporting seat are connected through an elastic part, and an inner cooling mechanism is further arranged on the buffer seat. The method has the advantage that the probability of pin bush gouges in the high-temperature state can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of pin sleeve quenching, and in particular to a pin sleeve quenching cooling device. Background Art

[0002] CN116814932A discloses a medium frequency heat treatment device for a pin sleeve, wherein when cooling the pin sleeve, four column water pipes evenly distributed on the circumference are used to cool the pin sleeve. When loading and unloading the pin sleeve, the pin sleeve is moved between the four column water pipes by sliding obliquely, but this method has a large impact and is easy to damage the pin sleeve in a high temperature state. Summary of the invention

[0003] In view of the shortcomings of the prior art, one of the purposes of the present application is to provide a pin sleeve quenching and cooling device, which has the advantage of being able to reduce the probability of the pin sleeve being damaged under high temperature conditions.

[0004] The above-mentioned purpose of the present application is achieved through the following technical solutions: A pin sleeve quenching cooling device comprises a support seat, an external cooling mechanism is arranged on the support seat, a buffer seat is also arranged on the support seat, the buffer seat and the support seat are connected via an elastic member, and an internal cooling mechanism is also arranged on the buffer seat.

[0005] By adopting the above technical solution, during use, due to the presence of the buffer seat, when the pin sleeve falls, the pin sleeve contacts the buffer seat, and under the action of the impact force, the elastic member will be displaced, thereby buffering the impact force, thereby reducing the probability of the pin sleeve being damaged.

[0006] In a preferred example, the present application can be further configured as follows: the external cooling mechanism includes an annular cooling wall, an external cooling cavity is provided on the cooling wall, and an outgoing liquid hole connected to the external cooling cavity is also provided on the cooling wall.

[0007] By adopting the above technical solution, during use, since the cooling wall is annular and has an external cooling cavity and an external liquid hole, the pin sleeve can be cooled in all directions during use, so that the cooling effect of the pin sleeve is better.

[0008] In a preferred example, the present application can be further configured as follows: the cooling wall and the support seat are sealed and connected.

[0009] By adopting the above technical solution, during use, the liquid discharged from the outgoing liquid hole will gather in the chamber formed by the cooling wall and the support seat, so that the pin sleeve is immersed in the liquid, thereby being able to cool the pin sleeve more comprehensively.

[0010] In a preferred example, the present application can be further configured as follows: the internal cooling mechanism includes a cooling column, the cooling column is provided with an internal cooling cavity and an internal liquid outlet, and the internal liquid outlet is connected to the internal cooling cavity.

[0011] By adopting the above technical solution, the inner side of the pin sleeve is cooled by the cooling column, so that the cooling of the pin sleeve is more uniform.

[0012] In a preferred example, the present application can be further configured as follows: a retaining frame is also provided on the buffer seat, and the internal cooling mechanism is located in a cavity formed by the retaining frame.

[0013] By adopting the above technical solution, the existence of the retaining frame can limit the position of the pin sleeve, thereby reducing the probability of excessive displacement of the pin sleeve.

[0014] In a preferred example, the present application can be further configured as follows: the retaining frame includes a limiting frame and a supporting frame, the supporting frame is connected to the buffer seat, and the contact area between the supporting frame and the pin sleeve is smaller than the bottom area of ​​the pin sleeve.

[0015] By adopting the above technical solution, that is, the contact area is small, a larger area of ​​the pin sleeve can be in contact with the cooling liquid, thereby achieving a better cooling effect on the pin sleeve.

[0016] In a preferred example, the present application can be further configured as follows: a partition plate 1 is provided in the outer cooling cavity, and the partition plate 1 divides the outer cooling cavity into a plurality of chambers 1 that are not interconnected.

[0017] By adopting the above technical solution, the evenly divided chamber can ensure that the water pressure in the external coolant hole is the same, reducing the probability of the water pressure colliding and offsetting part of the kinetic energy of the water during the water intake process, thereby causing inconsistent pressure in the external coolant hole, resulting in untimely cooling of the pin sleeve and resulting in local soft spots.

[0018] In a preferred example, the present application can be further configured as follows: the elastic member is arranged between the support seat and the buffer seat, and the support seat is also provided with a limiting component for limiting the position of the buffer seat.

[0019] By adopting the above technical solution, the probability of the buffer seat being offset when receiving an impact can be effectively reduced.

[0020] In a preferred example, the present application can be further configured as follows: the limiting assembly includes a limiting rod, the support seat is provided with a limiting hole for the limiting rod to slide, and the limiting rod is arranged on the buffer seat.

[0021] By adopting the above technical solution, when the buffer seat moves, the existence of the limiting rod and the limiting hole can limit the buffer seat and reduce the probability of the buffer seat being offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of this application.

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of this application.

[0024] Figure 3 It is a schematic diagram of the internal structure of this application.

[0025] Figure 4 It is a schematic diagram of the cage structure of this application.

[0026] Figure numerals: 1. support seat; 2. cooling wall; 21. external cooling cavity; 211. chamber one; 22. outgoing liquid hole; 3. cooling column; 31. internal cooling cavity; 32. internal liquid hole; 311. chamber two; 4. retaining frame; 41. limiting frame; 42. support frame; 421. support ring; 422. support plate; 5. buffer seat; 6. elastic member. DETAILED DESCRIPTION

[0027] The present application is further described in detail below in conjunction with the accompanying drawings.

[0028] Reference Figure 1-Figure 4 , is a pin sleeve quenching cooling device disclosed in the present application, comprising a support seat 1, on which an external cooling mechanism and a buffer seat 5 are provided, the external cooling mechanism comprising a cooling wall 2, the cooling wall 2 is annular, and the lower end is fixedly and sealedly connected to the support seat 1, the buffer seat 5 is located in a chamber formed by the cooling wall 2 and the support seat 1, and the buffer seat 5 and the support seat 1 are connected by an elastic member 6. The elastic member 6 is arranged between the support seat 1 and the buffer seat 5, and the support seat 1 is also provided with a limiting assembly for limiting the position of the buffer seat 5, the limiting assembly comprising a limiting rod, and a limiting hole for sliding the limiting rod is opened on the support seat 1, and the limiting rod is arranged on the buffer seat 5. In this embodiment, the elastic member 6 can be a spring, and the spring sleeve is arranged on the limiting rod. In other embodiments, it can also be an elastic structure composed of rubber.

[0029] A retaining frame 4 is also provided on the buffer seat 5, and the retaining frame 4 includes a limit frame 41 and a support frame 42 which are connected to each other. The support frame 42 is connected to the buffer seat 5, and the support frame 42 includes a support plate 422 and a support ring 421. The lower end of the support plate 422 is connected to the buffer seat 5, and the upper end is connected to the support ring 421. The support ring 421 is used to support the pin sleeve and is in linear contact with the pin sleeve.

[0030] The buffer seat 5 is also provided with an internal cooling mechanism, which includes a cooling column 3. The cooling column 3 is located within the range formed by the retaining frame 4. The cooling column 3 is provided with an internal cooling cavity 31 and an internal liquid outlet 32. In other embodiments, the cooling column 3 may also be provided with a plurality of partitions 2, which divide the internal cooling cavity 31 into a plurality of chambers 2 311 that are not connected to each other, and the internal liquid outlet 32 ​​is connected to the internal cooling cavity 31.

[0031] An external cooling cavity 21 is provided on the cooling wall 2, and a partition 1 is provided inside the external cooling cavity 21. The partition 1 divides the external cooling cavity 21 into a plurality of chambers 1 211 that are not connected to each other. The cooling wall 2 is also provided with an outgoing liquid hole 22 that is connected to the external cooling cavity 21. A plurality of injection holes for connecting to the chamber 1 211 are provided on the support seat. In the present embodiment, each chamber 1 211 corresponds to two injection holes. Each chamber 1 211 and the internal cooling cavity 31 (each chamber 2 311) are independently connected to an external water source. Under the action of a pump, each chamber 1 211 and / or the internal cooling cavity 31 (each chamber 2 311) can be separately injected or pumped. In other embodiments, one or more chambers 1 211 and / or the internal cooling cavity 31 (one or more chambers 2 311) can share one or more water sources.

[0032] The support seat 1 is also provided with a lifting component, which is used to drive the buffer seat 5 to move up and down. In this embodiment, the lifting component can be a cylinder, a hydraulic cylinder or an electric push rod. For example, the cooling column 3 is driven up and down by the hydraulic cylinder, thereby driving the buffer seat 5 to move up and down. In other embodiments, a motor can be used to wind up the rope to pull the buffer seat 5 to move the buffer seat 5 downward. When an airbag-type elastic member 6 is used, the lifting and lowering of the buffer seat 5 can be achieved by controlling the inflation and deflation of the airbag.

[0033] The implementation principle of this embodiment is as follows: during use, the support seat 1 is tilted (the tilt angle is 0-90°, such as 30°, 45° or 60°), and the pin sleeve slides into the limit frame 41 under the action of gravity and is supported by the support ring 421. During the contact between the pin sleeve and the support ring 421, due to the presence of the elastic member 6, the support ring 421 will move downward to buffer the impact of the pin sleeve. At the same time, when the pin sleeve enters the chamber formed by the cooling wall 2 and the support seat 1, the coolant in the chamber can also buffer the pin sleeve. When the pin sleeve contacts the support ring 421, the support seat 1 drives the pin sleeve to become a vertical state. As the cooling proceeds, the outgoing liquid hole 22 and the inner liquid hole 32 continuously move toward the cooling wall 2 and the support seat 1. Coolant is injected into the formed chamber, and the coolant in the chamber will overflow from the top, that is, the heated quenching medium will be continuously squeezed out of the quenching device by the cold water quenching medium; during immersion quenching, because the quenching water is not atomized, the cooling rate of the surface metal on the inner and outer surfaces of the pin sleeve decreases, and at the same time, the large flow of quenching water can ensure that the surface metal can always be at a lower temperature of 120-140°C, ensuring the temperature drop rate of the inner layer of the tread metal. During the quenching process, by adjusting the pressure of each chamber 1 211 and the pressure of the inner cooling chamber 31 (or each chamber 2 311), and coordinating the rapid descent of the drive seat, the pin sleeve is not in contact with the support ring 421 for a short time. Under the action of the impact force, the position of the pin sleeve can be adjusted, so that the quenching effect of the pin sleeve is better.

[0034] The embodiments of this specific implementation method are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, all equivalent changes made based on the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pin sleeve quenching cooling device, characterized in that: The invention comprises a support seat (1), wherein the support seat (1) is provided with an external cooling mechanism, and the support seat (1) is also provided with a buffer seat (5), wherein the buffer seat (5) and the support seat (1) are connected via an elastic member (6), and the buffer seat (5) is also provided with an internal cooling mechanism.

2. A pin sleeve quenching and cooling device according to claim 1, characterized in that: The external cooling mechanism comprises an annular cooling wall (2), an external cooling cavity (21) is provided on the cooling wall (2), and an outflowing liquid hole (22) connected to the external cooling cavity (21) is also provided on the cooling wall (2).

3. A pin sleeve quenching and cooling device according to claim 1, characterized in that: The cooling wall (2) and the supporting seat (1) are sealed and connected.

4. A pin sleeve quenching and cooling device according to claim 1, characterized in that: The inner cooling mechanism comprises a cooling column (3), wherein the cooling column (3) is provided with an inner cooling cavity (31) and an inner liquid outlet hole (32), and the inner liquid outlet hole (32) is connected to the inner cooling cavity (31).

5. The pin sleeve quenching and cooling device according to claim 1, characterized in that: A retaining frame (4) is also provided on the buffer seat (5), and the internal cooling mechanism is located in a cavity formed by the retaining frame (4).

6. A pin sleeve quenching and cooling device according to claim 5, characterized in that: The retaining frame (4) comprises a limiting frame (41) and a supporting frame (42); the supporting frame (42) is connected to the buffer seat (5); and the contact area between the supporting frame (42) and the pin sleeve is smaller than the bottom area of ​​the pin sleeve.

7. A pin sleeve quenching and cooling device according to claim 2, characterized in that: A partition plate 1 is provided in the outer cooling cavity (21), and the partition plate 1 divides the outer cooling cavity (21) into a plurality of chambers 1 (211) that are not connected to each other.

8. The pin sleeve quenching and cooling device according to claim 1, characterized in that: The elastic member (6) is arranged between the support seat (1) and the buffer seat (5), and the support seat (1) is also provided with a limiting component for limiting the position of the buffer seat (5).

9. A pin sleeve quenching and cooling device according to claim 8, characterized in that: The limiting assembly comprises a limiting rod, a limiting hole for the limiting rod to slide is provided on the supporting seat (1), and the limiting rod is arranged on the buffer seat (5).

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