Cooling equipment used after processing and quenching of steel plate spring

Abstract

The invention relates to the technical field of cooling equipment, and discloses cooling equipment used after machining and quenching of a steel plate spring. Comprising a flowing type cooling mechanism, an annular reserved cavity located in the top of a cooling cylinder and capable of spraying cooling liquid into the cooling cylinder, and a second liquid flowing channel arranged at the bottom of the cooling cylinder and used for discharging the cooling liquid. The longitudinal rotating shaft is mounted at the bottom end of the cooling cylinder and can indirectly rotate along with the driving motor; and the liquid driving disc is mounted at the top end of the longitudinal rotating shaft and can rotate along with the longitudinal rotating shaft. According to the cooling equipment used after machining and quenching of the steel plate spring, a cooling liquid located in the cooling cylinder can have a circular flowing effect, so that the flowing rate between the cooling liquid and the steel plate spring is increased, the cooling efficiency of the steel plate spring is further improved, in addition, the device can be used in cooperation with external refrigeration equipment, and the cooling efficiency is improved. Therefore, the temperature of the cooling liquid in the circulation process is reduced, and the cooling efficiency is further improved.

Description

Technical Field

[0001] This invention relates to the field of cooling equipment technology, specifically to a cooling device for steel leaf springs after quenching during processing. Background Technology

[0002] Currently, the common method for cooling leaf springs is to manually use pliers to clamp the leaf spring and then drop it into water to cool it. After cooling, the leaf spring is then manually removed. However, the water will heat up over time, which can affect the cooling effect. Furthermore, manually removing the leaf spring is also quite troublesome and labor-intensive.

[0003] To this end, Chinese Patent Publication No. CN114934166B discloses "A Cooling Device for Steel Leaf Springs After Quenching," whose main structure includes a frame with a soaking water tank connected to the middle of the frame for cooling the steel leaf springs; a first guide rail connected to one side of the top of the frame; a first slider slidably connected to the first guide rail; a first spring connected between the first slider and the first guide rail; a second guide rail connected to one side of the top of the frame; and a second slider slidably connected to the second guide rail. This cooling device for steel leaf springs after quenching uses a rack to hold the steel leaf springs, and the soaking water tank is filled with water. The steel leaf springs from the rack are then added to the soaking water tank.

[0004] It is evident that the aforementioned cooling equipment for quenched steel leaf springs cools them by immersing the quenched steel leaf springs in a water tank. However, the coolant inside the tank is stationary. When the steel leaf spring is immersed in the coolant from top to bottom, the coolant in contact with the spring will instantly evaporate due to the high temperature, while the coolant further away from the spring will not provide effective cooling. The coolant closer to the spring will also evaporate due to excessively high contact temperature. The main reason for this is the relatively low relative motion between the steel leaf spring and the coolant, leading to the aforementioned defects and resulting in low cooling efficiency. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this invention provides a cooling device for steel leaf springs after quenching during processing. This device enables the coolant inside the cooling cylinder to circulate, thereby increasing the flow rate between the coolant and the steel leaf spring, and thus improving the cooling efficiency of the steel leaf spring. Furthermore, this device can be used in conjunction with external refrigeration equipment to reduce the temperature of the coolant during circulation, thereby further improving the cooling efficiency and solving the aforementioned technical problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a cooling device for steel leaf springs after quenching, comprising a support base plate on which a drive motor is mounted on the upper surface and a fixed base sleeve mounted directly above the support base plate via a longitudinal support rod, and further comprising a flow cooling mechanism, the structure of which includes a cooling cylinder fixedly mounted at the center of the fixed base sleeve and having a hollow internal structure, an annular reserved cavity located at the top of the cooling cylinder and capable of spraying coolant into the cooling cylinder, a second liquid flow channel located at the bottom of the cooling cylinder for discharging coolant, a longitudinal rotating shaft mounted at the bottom of the cooling cylinder and capable of indirectly rotating with the drive motor, and a liquid drive disc mounted at the top of the longitudinal rotating shaft and capable of rotating with the longitudinal rotating shaft.

[0007] Preferably, the flow cooling mechanism further includes a longitudinal cooling chamber disposed inside the cooling cylinder for storing coolant. The bottom end of the longitudinal cooling chamber is provided with a converging cavity with a gradually decreasing radius. The bottom end of the converging cavity is provided with a shaft mounting hole with an open bottom structure. The top area of ​​the cooling cylinder is provided with a closed annular reserved cavity. The inner wall of the cooling cylinder is provided with multiple liquid nozzles connecting the inner side of the annular reserved cavity and the longitudinal cooling chamber. The outer circumferential surface of the cooling cylinder is provided with a first liquid flow channel connecting the external space and the annular reserved cavity. The circumferential side of the cooling cylinder is provided with a second liquid flow channel connecting the external space and the converging cavity. The cooling cylinder has a rotatable longitudinal shaft installed inside the shaft mounting hole via bearings and a sealing ring. The bottom end of the longitudinal shaft is provided with a first connecting plate integrally formed with it. The top end of the longitudinal shaft is fitted with a liquid drive disc.

[0008] Preferably, the top port of the cooling cylinder is provided with a constriction port to prevent the rotating coolant from leaking outward.

[0009] Preferably, when the liquid drive disk rotates, the raised structure on its upper surface can cause the surrounding liquid to have a following effect.

[0010] Preferably, a protective cover is installed directly above the liquid drive disk to prevent objects from sliding down and contacting the liquid drive disk.

[0011] Preferably, it also includes a piston-type circulation mechanism, the structure of which includes a horizontal cylinder capable of pre-storing coolant and having a hollow internal structure, a piston plate located inside the horizontal cylinder and capable of driving the coolant, a first liquid check valve and a second liquid check valve that cooperate with the piston plate to enable unidirectional flow of coolant, a crankshaft that can rotate with the rotor of the drive motor and drive the longitudinal shaft to rotate, and a movable connecting rod that enables the piston plate to generate reciprocating piston motion with the crankshaft.

[0012] Preferably, the piston-type circulation mechanism further includes a fixed base for fixing the horizontal cylinder to the support base plate. The horizontal cylinder has an open-end liquid compression chamber inside. The solid end of the horizontal cylinder has a third liquid flow channel integrally formed with and communicating with the liquid compression chamber. Near the pipe body of the third liquid flow channel, a fourth liquid flow channel is provided, communicating between the inner hole of the third liquid flow channel and the external space. A first liquid check valve and a second liquid check valve are respectively installed inside the third and fourth liquid flow channels. The port of the fourth liquid flow channel is connected to the second liquid flow channel through a docking channel. Inside the liquid compression chamber, the horizontal cylinder has a piston plate that can move along the axial direction of the liquid compression chamber. One end of the piston plate is provided with a concave hemispherical mounting groove. Inside the hemispherical mounting groove, the piston plate has a rotatable sphere. One side of the rotatable sphere is provided with a movable connecting rod integrally formed with it. The top of the crankshaft is provided with a second connecting plate that is fixedly connected to the first connecting plate. The bottom end of the crankshaft is fixedly connected to the rotor end of the drive motor through a coupling.

[0013] Preferably, the No. 1 liquid check valve and the No. 2 liquid check valve can control the coolant to be drawn in through the docking channel and then discharged outward through the No. 3 liquid flow channel.

[0014] Preferably, the radius of the hemispherical mounting groove is adapted to the radius of the rotating sphere, and the depth of the hemispherical mounting groove is greater than the radius of the rotating sphere and less than the diameter of the rotating sphere.

[0015] Preferably, during operation, the third liquid flow channel is connected to the inlet of a refrigeration device capable of cooling the coolant, and the outlet of the refrigeration device is connected to the first liquid flow channel.

[0016] Compared with the prior art, the present invention provides a cooling device for steel leaf springs after quenching, which has the following beneficial effects:

[0017] This device enables the coolant inside the cooling cylinder to circulate, thereby increasing the flow rate between the coolant and the leaf spring and thus improving the cooling efficiency of the leaf spring. In addition, the device can be used in conjunction with external refrigeration equipment to reduce the temperature of the coolant during circulation, thereby further improving the cooling efficiency. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention;

[0019] Figure 2 This is a three-dimensional cross-sectional view of the present invention;

[0020] Figure 3This is a perspective view of the flow cooling mechanism in this invention;

[0021] Figure 4 This is a three-dimensional cross-sectional view of the flow cooling mechanism in this invention;

[0022] Figure 5 This is a perspective view of the liquid-driven disk in this invention;

[0023] Figure 6 This is a perspective view of the piston-type circulation mechanism in this invention;

[0024] Figure 7 This is a three-dimensional cross-sectional view of the piston-type circulation mechanism in this invention.

[0025] The components include: 1. Support base plate; 2. Longitudinal support rod; 3. Fixed base sleeve; 4. Drive motor; 5. Flow cooling mechanism; 51. Cooling cylinder; 52. Longitudinal cooling chamber; 53. Closing opening; 54. Closing chamber; 55. Shaft mounting hole; 56. Annular reserved cavity; 57. Liquid nozzle; 58. No. 1 liquid flow channel; 59. Longitudinal rotating shaft; 510. Liquid drive disc; 511. Protective cover; 512. No. 2 liquid flow channel; 513. No. 1 connecting plate. 6. Piston-type circulation mechanism; 61. Fixed base; 62. Horizontal cylinder; 63. Liquid compression chamber; 64. No. 3 liquid flow channel; 65. No. 4 liquid flow channel; 66. No. 1 liquid check valve; 67. No. 2 liquid check valve; 68. Docking channel; 69. Piston plate; 610. Hemispherical mounting groove; 611. Rotating ball; 612. Movable connecting rod; 613. Bushing; 614. Crankshaft; 615. No. 2 connecting plate; 616. Coupling. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] Please see Figure 1 and Figure 2 A cooling device for steel leaf springs after quenching includes a support base plate 1 with a drive motor 4 mounted on its upper surface and a fixed base sleeve 3 mounted directly above the support base plate 1 via a longitudinal support rod 2. During operation, the third liquid flow channel 64 is connected to the inlet of a refrigeration device capable of cooling the coolant, and the outlet of the refrigeration device is connected to the first liquid flow channel 58.

[0028] To achieve the function of driving the coolant, thereby increasing the flow rate between the coolant and the leaf spring, please refer to... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A flow-type cooling mechanism 5 needs to be installed, the structure of which includes a cooling cylinder 51 fixedly installed at the center of the fixed base sleeve 3 and having a hollow internal structure; an annular reserved cavity 56 located at the top of the cooling cylinder 51 and capable of spraying coolant into the cooling cylinder 51; a second liquid flow channel 512 located at the bottom of the cooling cylinder 51 for discharging coolant; a longitudinal rotating shaft 59 installed at the bottom end of the cooling cylinder 51 and capable of indirectly rotating with the drive motor 4; and a liquid drive disk 510 installed at the top end of the longitudinal rotating shaft 59 and capable of rotating with the longitudinal rotating shaft 59. First, pour an appropriate amount of coolant into the cooling cylinder 51. The longitudinal rotating shaft 59 rotates with the crankshaft 614, and the longitudinal rotating shaft 59 will simultaneously drive the liquid drive disk 510 to rotate. The rotation of the liquid drive disk 510 will cause the coolant around it to rotate. When the quenched steel leaf spring is immersed in the coolant, the rotating coolant can cool the steel leaf spring. Due to the fluidity of the coolant, the coolant at different positions can cool the quenched steel leaf spring, thereby improving the flow rate between the coolant and the steel leaf spring.

[0029] For details regarding the specific structure of the flow cooling mechanism 5, please refer to [link / reference]. Figure 3 , Figure 4 and Figure 5It also includes a longitudinal cooling chamber 52 disposed inside the cooling cylinder 51 for storing coolant. The bottom end of the longitudinal cooling chamber 52 has a gradually decreasing radius converging cavity 54. The bottom end of the converging cavity 54 has a shaft mounting hole 55 with an open bottom. The top region of the cooling cylinder 51 has a closed annular pre-reserved cavity 56. The inner wall of the cooling cylinder 51 has multiple liquid nozzles 57 connecting the inner side of the annular pre-reserved cavity 56 and the longitudinal cooling chamber 52. The outer circumferential surface of the cooling cylinder 51 has a first liquid flow channel 58 connecting the external space and the annular pre-reserved cavity 56. The circumferential side of the cooling cylinder 51 has a channel connecting the external space and the converging cavity 54. The second liquid flow channel 512 has a longitudinal shaft 59 mounted inside the shaft mounting hole 55 of the cooling cylinder 51 via bearings and a sealing ring. The bottom end of the longitudinal shaft 59 is provided with a first connecting plate 513 integrally formed with it. The top end of the longitudinal shaft 59 is fitted with a liquid drive disk 510. The top port of the cooling cylinder 51 is provided with a constriction port 53 to prevent the rotating coolant from leaking outward. When the liquid drive disk 510 rotates, the raised structure on its upper surface can generate a following effect on the liquid around it. A protective cover 511 is installed directly above the liquid drive disk 510 to prevent objects from falling and contacting the liquid drive disk 510.

[0030] To achieve the functions of coolant circulation and cooling, and to accelerate coolant flow rate, please refer to [link / reference needed]. Figure 1 , Figure 2 , Figure 6 and Figure 7 A piston-type circulation mechanism 6 needs to be installed. Its structure includes a horizontal cylinder 62 with a hollow interior capable of pre-storing coolant, a piston plate 69 located inside the horizontal cylinder 62 and capable of driving the coolant, a first liquid check valve 66 and a second liquid check valve 67 that cooperate with the piston plate 69 to allow unidirectional flow of coolant, a crankshaft 614 that rotates with the rotor of the drive motor 4 and drives the longitudinal shaft 59 to rotate, and a movable connecting rod 612 that causes the piston plate 69 to reciprocate with the crankshaft 614. When the cooling equipment and drive motor 4 are started, the rotor of the drive motor 4 will drive... The crankshaft 614 rotates, which drives the piston plate 69 to reciprocate inside the horizontal cylinder 62 via the movable connecting rod 612. At the same time, due to the cooperation of the first liquid check valve 66 and the second liquid check valve 67, the coolant inside the longitudinal cooling chamber 52 is drawn into the horizontal cylinder 62, and then compressed by the piston plate 69 before entering the refrigeration equipment. After being cooled, the coolant enters the annular reserved cavity 56 and finally flows back into the longitudinal cooling chamber 52 through the liquid nozzle 57, thereby realizing the function of circulating cooling of the coolant and accelerating the flow rate of the coolant.

[0031] For details regarding the specific structure of the piston-type circulation mechanism 6, please refer to [link / reference]. Figure 6 and Figure 7 It also includes a fixed base 61 for fixing the horizontal cylinder 62 to the support base plate 1. The horizontal cylinder 62 has a liquid compression chamber 63 with one open end. The solid end of the horizontal cylinder 62 has a third liquid flow channel 64 integrally formed with it and connected to the liquid compression chamber 63. The third liquid flow channel 64 has a fourth liquid flow channel 65 near the tube of the horizontal cylinder 62, which connects the inner hole of the third liquid flow channel 64 to the outside space. The third liquid flow channel 64 and the fourth liquid flow channel 65 are respectively equipped with a first liquid check valve 66 and a second liquid check valve 67. The port of the fourth liquid flow channel 65 is connected to the second liquid flow channel 512 through a docking channel 68. The horizontal cylinder 62 has a piston plate 6 that can move axially along the liquid compression chamber 63 inside the liquid compression chamber 63. 9. One end of the piston plate 69 is provided with a concave hemispherical mounting groove 610. A rotatable rotating ball 611 is placed inside the hemispherical mounting groove 610. A movable connecting rod 612 integrally formed with the rotating ball 611 is provided on one side of the rotating ball 611. The top end of the crankshaft 614 is provided with a second connecting plate 615 fixedly connected to the first connecting plate 513. The bottom end of the crankshaft 614 is fixedly connected to the rotor end of the drive motor 4 through a coupling 616. The first liquid check valve 66 and the second liquid check valve 67 can control the coolant to be drawn in through the docking channel 68 and then discharged outward through the third liquid flow channel 64. The radius of the hemispherical mounting groove 610 is adapted to the radius of the rotating ball 611, and the depth of the hemispherical mounting groove 610 is greater than the radius of the rotating ball 611 and less than the diameter of the rotating ball 611.

[0032] In use, the third liquid flow channel 64 is connected to the inlet of a refrigeration device capable of cooling the coolant, and the outlet of the refrigeration device is connected to the first liquid flow channel 58. An appropriate amount of coolant is poured into the cooling cylinder 51. The longitudinal rotating shaft 59 rotates with the crankshaft 614, and simultaneously drives the liquid drive disk 510 to rotate. The rotation of the liquid drive disk 510 causes the surrounding coolant to rotate. When the quenched leaf spring is immersed in the coolant, the rotating coolant cools the leaf spring. Due to the fluidity of the coolant, it allows the coolant at different locations to cool the quenched leaf spring. After the steel leaf spring is cooled, the cooling equipment and drive motor 4 are started. The rotor of drive motor 4 drives crankshaft 614, and the rotation of crankshaft 614 drives piston plate 69 to reciprocate piston motion inside horizontal cylinder 62 through movable connecting rod 612. At the same time, due to the cooperation of liquid one-way valve 66 and liquid one-way valve 67, the coolant inside the longitudinal cooling chamber 52 is drawn into the horizontal cylinder 62, and then compressed by piston plate 69 into the refrigeration equipment. After being cooled, the coolant enters the annular reserved cavity 56, and finally flows back into the longitudinal cooling chamber 52 through liquid nozzle 57.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cooling device for steel plate spring processing after quenching, comprising a support base plate (1) with a driving motor (4) mounted on the upper surface and a fixed base sleeve (3) mounted on the support base plate (1) directly above by a longitudinal support rod (2), characterized in that: Also comprising, The flow type cooling mechanism (5) further comprises a longitudinal cooling cavity (52) arranged inside the cooling cylinder (51) and used for storing the cooling liquid, the bottom end of the longitudinal cooling cavity (52) is provided with a converging cavity (54) with gradually reduced radius, the bottom end of the converging cavity (54) is provided with a shaft mounting hole (55) with an open structure at the bottom end, the top region of the cooling cylinder (51) is provided with a closed annular reserved cavity (56) at the periphery, the inner wall of the cooling cylinder (51) is provided with a plurality of liquid injection ports (57) communicating the inside of the annular reserved cavity (56) and the longitudinal cooling cavity (52), the outer circumferential surface of the cooling cylinder (51) is provided with a first liquid flow channel (58) communicating the outside space and the annular reserved cavity (56), the circumferential side surface of the cooling cylinder (51) is provided with a second liquid flow channel (512) communicating the outside space and the converging cavity (54), the cooling cylinder (51) is provided with a rotatable longitudinal rotating shaft (59) at the inside of the shaft mounting hole (55) through a bearing and a sealing ring, the bottom end of the longitudinal rotating shaft (59) is provided with a first connecting plate (513) in an integral structure, the top end of the longitudinal rotating shaft (59) is sleeved with a liquid driving disc (510).

2. A device for cooling a steel plate spring after quenching according to claim 1, characterized in that: The top end of the cooling cylinder (51) is provided with a converging port (53) for preventing the leakage of the rotating cooling liquid.

3. A device for cooling a steel plate spring after quenching according to claim 2, characterized in that: When the liquid driving disc (510) rotates, the convex structure on its upper surface can produce a driven effect on the liquid around it.

4. A device for cooling a steel plate spring after quenching according to claim 3, characterized in that: The liquid driving disc (510) is installed above a protective cover (511) which can prevent objects from moving down to contact the liquid driving disc (510).

5. A device for cooling a steel plate spring after quenching according to claim 4, characterized in that: The piston type circulation mechanism (6) further comprises a horizontal cylinder (62) capable of pre-storing cooling liquid and having a hollow structure, a piston plate (69) arranged inside the horizontal cylinder (62) and capable of achieving a driving effect on the cooling liquid, a first liquid check valve (66) and a second liquid check valve (67) capable of making the cooling liquid flow in one direction in cooperation with the piston plate (69), a crankshaft (614) capable of rotating with the rotor of the driving motor (4) and driving the longitudinal rotating shaft (59) to rotate, and a movable connecting rod (612) capable of making the piston plate (69) produce reciprocating piston motion with the crankshaft (614).

6. A device for cooling quenched steel plate springs according to any one of claims 2-5, characterized in that: ​ 7. A device for cooling a steel plate spring after quenching according to claim 6, characterized in that: The piston circulation mechanism (6) further comprises a fixed base (61) for fixing the horizontal cylinder (62) above the support base plate (1), an open liquid compression cavity (63) is arranged in the horizontal cylinder (62), a No. 3 liquid flow channel (64) is arranged in the solid end of the horizontal cylinder (62) and communicates with the liquid compression cavity (63), the No. 3 liquid flow channel (64) is provided with a No. 4 liquid flow channel (65) near the pipe of the horizontal cylinder (62), the No. 3 liquid flow channel (64) and the No. 4 liquid flow channel (65) are respectively provided with a No. 1 liquid check valve (66) and a No. 2 liquid check valve (67), the port of the No. 4 liquid flow channel (65) communicates with the No. 2 liquid flow channel (512) through a docking channel (68), the horizontal cylinder (62) is provided with a piston plate (69) capable of moving axially along the liquid compression cavity (63) in the liquid compression cavity (63), one end of the piston plate (69) is provided with a concave hemispherical mounting groove (610), the piston plate (69) is provided with a rotatable rotating ball (611) in the hemispherical mounting groove (610), one side of the rotating ball (611) is provided with a movable connecting rod (612) in an integral structure, the top end of the crankshaft (614) is provided with a No. 2 connecting plate (615) fixedly connected with a No. 1 connecting plate (513), the bottom end of the crankshaft (614) is fixedly connected with the rotor end of the driving motor (4) through a shaft coupling (616).

8. A device for cooling a steel plate spring after quenching according to claim 7, characterized in that: The No. 1 liquid check valve (66) and the No. 2 liquid check valve (67) can control the cooling liquid to be sucked from the docking channel (68) and then discharged outward through the No. 3 liquid flow channel (64).

9. A device for cooling a steel plate spring after quenching according to claim 8, characterized in that: The radius of the hemispherical mounting groove (610) is matched with the radius of the rotating ball (611), and the depth of the hemispherical mounting groove (610) is greater than the radius of the rotating ball (611) and less than the diameter of the rotating ball (611).

10. A device for cooling a steel plate spring after quenching according to claim 9, characterized in that: During operation, the No. 3 liquid flow channel (64) is docked with the liquid inlet of a refrigeration device capable of refrigerating the cooling liquid, and the liquid outlet of the refrigeration device is docked with the No. 1 liquid flow channel (58).

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