A quenching and cooling device for a pin bushing

Abstract

This application relates to a quenching and cooling device for a pin bushing, and pertains to the technical field of pin bushing quenching. It includes a support base, an external cooling mechanism is provided on the support base, a buffer base is also provided on the support base, the buffer base and the support base are connected by an elastic member, and an internal cooling mechanism is further provided on the buffer base. This application has the advantage of being able to reduce the probability of the pin bushing being bruised at high temperatures.

Description

Technical Field

[0001] This application relates to the technical field of quenching of pin sleeves, and particularly relates to a pin sleeve quenching and cooling device. Background Art

[0002] CN116814932A discloses a pin sleeve intermediate frequency heat treatment device. When cooling the pin sleeve, four vertical water pipes evenly distributed on the circumference are used to cool the pin sleeve. When loading and unloading the pin sleeve, by making the pin sleeve slide obliquely and move between the four vertical water pipes, however, this method has a large impact and is likely to damage the pin sleeve in the high-temperature state. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, one of the purposes of this 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 in the high-temperature state.

[0004] The above object of this application is achieved through the following technical solutions:

[0005] A pin sleeve quenching and cooling device includes a support base. An outer cooling mechanism is provided on the support base. A buffer base is further provided on the support base. The buffer base and the support base are connected by an elastic member. An inner cooling mechanism is further provided on the buffer base.

[0006] By adopting the above technical solution, during use, due to the presence of the buffer base, when the pin sleeve falls, the pin sleeve contacts the buffer base. Under the action of the impact force, the elastic member will displace, thereby buffering the impact force and reducing the probability of the pin sleeve being damaged.

[0007] In a preferred example of this application, it can be further configured that: the outer cooling mechanism includes an annular cooling wall. An outer cooling cavity is opened on the cooling wall. An outer liquid outlet hole communicating with the outer cooling cavity is further provided on the cooling wall.

[0008] By adopting the above technical solution, during use, since the cooling wall is annular and there are an outer cooling cavity and an outer liquid outlet hole, during use, the pin sleeve can be cooled in all directions, making the cooling effect on the pin sleeve better.

[0009] In a preferred example of this application, it can be further configured that: the cooling wall is hermetically connected to the support base.

[0010] By adopting the above technical solution, that is, during use, the liquid discharged from the outer liquid outlet hole will gather in the cavity formed by the cooling wall and the support base, so that the pin sleeve is immersed in the liquid, and thus the pin sleeve can be cooled more comprehensively.

[0011] In a preferred embodiment, 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 hole, and the internal liquid outlet hole is communicated with the internal cooling cavity.

[0012] 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.

[0013] In a preferred embodiment, the present application can be further configured as follows: a cage is further provided on the buffer seat, and the internal cooling mechanism is located in the cavity formed by the cage.

[0014] By adopting the above technical solution, the presence of the cage can limit the pin sleeve, thereby reducing the probability of excessive offset of the pin sleeve.

[0015] In a preferred embodiment, the present application can be further configured as follows: the cage 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.

[0016] By adopting the above technical solution, that is, the small contact area enables the pin sleeve to have more area in contact with the cooling liquid, so that the cooling effect on the pin sleeve is better.

[0017] In a preferred embodiment, the present application can be further configured as follows: a partition one is provided in the external cooling cavity, and the partition one divides the external cooling cavity into several non-communicating cavity ones.

[0018] By adopting the above technical solution, the evenly divided cavities can ensure the same water pressure in the external coolant holes, reducing the probability that during the water inlet process, the water pressure collides successively and offsets part of the kinetic energy of the water, resulting in inconsistent pressure in the external coolant holes and causing local soft spots due to untimely cooling of the pin sleeve.

[0019] In a preferred embodiment, the present application can be further configured as follows: the elastic member is arranged between the support seat and the buffer seat, and a limiting component for restricting the position of the buffer seat is further provided on the support seat.

[0020] By adopting the above technical solution, the probability of the buffer seat shifting when receiving an impact can be effectively reduced.

[0021] In a preferred embodiment, the present application can be further configured as follows: the limiting component includes a limiting rod, a limiting hole for the limiting rod to slide is formed on the support seat, and the limiting rod is arranged on the buffer seat.

[0022] By adopting the above technical solution, when the buffer seat moves, the presence of the limiting rod and the limiting hole can limit the buffer seat and reduce the probability of the buffer seat shifting. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the present application.

[0024] Figure 2 is a schematic cross-sectional structural diagram of the present application.

[0025] Figure 3 is a schematic internal structural diagram of the present application.

[0026] Figure 4 is a schematic structural diagram of the cage of the present application.

[0027] Reference numerals: 1, support seat; 2, cooling wall; 21, outer cooling cavity; 211, chamber one; 22, outer liquid outlet hole; 3, cooling column; 31, inner cooling cavity; 32, inner liquid outlet hole; 311, chamber two; 4, cage; 41, limiting frame; 42, support frame; 421, support ring; 422, support plate; 5, buffer seat; 6, elastic member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The present application will be further described in detail below with reference to the accompanying drawings.

[0029] Referring to Figures 1 - 4 , a pin bushing quenching and cooling device disclosed in the present application includes a support seat 1. An outer cooling mechanism and a buffer seat 5 are provided on the support seat 1. The outer cooling mechanism includes a cooling wall 2. The cooling wall 2 is annular, and the lower end is fixedly and sealingly connected to the support seat 1. The buffer seat 5 is located in the cavity formed by the cooling wall 2 and the support seat 1. 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. A limiting component for limiting the position of the buffer seat 5 is further provided on the support seat 1. The limiting component includes a limiting rod. A limiting hole for the limiting rod to slide is formed on the support seat 1. The limiting rod is arranged on the buffer seat 5. In this embodiment, the elastic member 6 can be a spring, and the spring is sleeved on the limiting rod. In other embodiments, it can also be an elastic structure made of rubber.

[0030] A cage 4 is further provided on the buffer seat 5. The cage 4 includes a limiting frame 41 and a support frame 42 connected to each other. The support frame 42 is connected to the buffer seat 5. 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 bushing and is in line contact with the pin bushing.

[0031] The buffer seat 5 is also provided with an internal cooling mechanism. The internal cooling mechanism includes a cooling column 3. The cooling column 3 is located within the range formed by the cage 4. The cooling column 3 is provided with an internal cooling cavity 31 and an internal liquid outlet hole 32. In other embodiments, a plurality of second partitions may also be provided inside the cooling column 3. The second partitions divide the internal cooling cavity 31 into several non-communicating chamber two 311. The internal liquid outlet hole 32 communicates with the internal cooling cavity 31.

[0032] An external cooling cavity 21 is formed on the cooling wall 2. A first partition is provided inside the external cooling cavity 21. The first partition divides the external cooling cavity 21 into several non-communicating chamber one 211. The cooling wall 2 is also provided with an external liquid outlet hole 22 communicating with the external cooling cavity 21. The support seat is provided with a plurality of liquid injection holes for communicating with the chamber one 211. In this embodiment, each chamber one 211 corresponds to two liquid injection holes. Each chamber one 211 and the internal cooling cavity 31 (each chamber two 311) are independently connected to an external water source, and under the action of a pump, water injection or pumping can be performed separately on each chamber one 211 and / or the internal cooling cavity 31 (each chamber two 311). In other embodiments, one or more chamber one 211 and / or the internal cooling cavity 31 (one or more chamber two 311) can share one or more water sources.

[0033] The support seat 1 is also provided with a lifting assembly for driving the buffer seat 5 to lift. In this embodiment, the lifting member can be a cylinder, a hydraulic cylinder or an electric push rod. For example, the cooling column 3 is driven by a hydraulic cylinder to lift, thereby driving the buffer seat 5 to lift. In other embodiments, a motor can also be used to wind a rope to pull the buffer seat 5 to realize the downward movement of the buffer seat 5. When an airbag-type elastic member 6 is used, by controlling the inflation and deflation of the airbag, the lifting of the buffer seat 5 can be realized.

[0034] The implementation principle of this embodiment is as follows: During use, the support base 1 is inclined (the inclination angle is 0 - 90°, such as 30°, 45° or 60°). Under the action of gravity, the pin sleeve slides into the limit frame 41 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 generated by the pin sleeve. At the same time, when the pin sleeve enters the chamber formed by the cooling wall 2 and the support base 1, the coolant in the chamber can also buffer the pin sleeve. After the pin sleeve contacts the support ring 421, the support base 1 drives the pin sleeve to become vertical. As the cooling progresses, the external liquid outlet hole 22 and the internal liquid outlet hole 32 continuously inject coolant into the chamber formed by the cooling wall 2 and the support base 1, 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, since the quenching water is not atomized, the cooling rate of the surface layer metal on the inner and outer surfaces of the pin sleeve decreases. At the same time, the large-flow quenching water can ensure that the surface layer metal can always be at a lower temperature of 120 - 140 °C, ensuring the temperature drop rate of the metal in the inner layer of the tread. During the quenching process, by adjusting the pressure of each chamber one 211 and the pressure of the internal cooling chamber 31 (or each chamber two 311), and cooperating with the rapid descent of the driving seat, there is a short time when the pin sleeve does not contact the support ring 421. Under the action of the impact force, the position of the pin sleeve can be adjusted to make the quenching effect on the pin sleeve better.

[0035] The embodiments of this specific implementation manner are all preferred embodiments of this application, and do not limit the protection scope of this application accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this 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, and the support seat (1) is also provided with a lifting assembly, wherein the lifting assembly is used to drive the buffer seat (5) to rise and fall, and during the quenching process, by adjusting the pressure of the external cooling mechanism and / or the pressure of the internal cooling mechanism, the buffer seat (5) is coordinated with the rapid descent, so that the pin sleeve is not in contact with the buffer seat (5) for a short time, and the position of the pin sleeve can be adjusted under the action of the impact force; the external cooling mechanism comprises an annular cooling wall (2), wherein the cooling wall (2) is provided with an external cooling cavity (21), and the cooling wall (2) is also provided with a 1) an outgoing liquid hole (22) connected to the outer cooling cavity (21); a partition is provided in the outer cooling cavity (21), and the partition divides the outer cooling cavity (21) into a plurality of chambers (211) that are not connected to each other; a retaining frame (4) is also provided on the buffer seat (5), and the inner cooling mechanism is located in the chamber formed by the retaining frame (4); the retaining frame (4) includes a limit frame (41) and a support frame (42), the support frame (42) and the buffer seat (5) are connected, and the contact area between the support frame (42) and the pin sleeve is smaller than the bottom area of ​​the pin sleeve; 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 line contact with the pin sleeve.

2. 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.

3. 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).

4. A 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).

5. A pin sleeve quenching and cooling device according to claim 4, 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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