Circulating cooling device for quenching oil of nickel-titanium alloy spring

Abstract

The invention belongs to the technical field of nickel-titanium alloy spring quenching, and particularly relates to a nickel-titanium alloy spring quenching oil circulating cooling device which is characterized in that a plurality of groups of fixed straight pipes are transversely and fixedly mounted in a cooling box, and a fixed bent pipe is fixedly communicated between the side edges of every two groups of fixed straight pipes; and the side edges of the connecting pipe and the conveying pipe fixedly communicate with the fixed bent pipe, a liquid pumping pipe is fixedly installed at the top of the inner side of the cooling box, and a liquid discharging pipe is fixedly installed at the bottom of the inner side of the cooling box. According to the cooling device, the flowing time of quenching oil in the cooling box can be prolonged, meanwhile, cooling liquid can make full contact with the fixed straight pipe and the fixed bent pipe, the quenching oil flowing in the fixed straight pipe and the fixed bent pipe is cooled, and meanwhile the flowability of the cooling liquid is improved; and the cooling effect of the cooling liquid on the quenching oil conveyed in the fixed straight pipe and the fixed bent pipe is further improved, and the quenching and cooling use quality of the quenching oil on the nickel-titanium alloy spring is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of quenching technology for nickel-titanium alloy springs, and specifically to a quenching oil circulation cooling device for nickel-titanium alloy springs. Background Technique

[0002] Nickel-titanium alloy is a shape memory alloy. A shape memory alloy is a special alloy that can automatically restore its own plastic deformation to its original shape at a specific temperature, and has good plasticity. A nickel-titanium alloy spring combines the material characteristics of nickel-titanium alloy and the functionality of a spring. In the case of being tightly wound, depending on different actual application temperatures, it can automatically expand and restore its shape in the parent phase. During the quenching process of a nickel-titanium alloy spring, quenching oil is needed for cooling.

[0003] According to the patent (with the publication number "CN216337831U") for a nickel-titanium alloy spring quenching oil circulation cooling system, it includes a quenching oil tank and a cooling mechanism arranged inside the quenching oil tank. The cooling mechanism includes a circulation pump installed on the outer wall of the quenching oil tank. An input pipe is installed at the upper end of the circulation pump, and an output pipe is installed at the lower end of the circulation pump. One end of the input pipe away from the circulation pump is fixedly connected to an input joint, and one end of the output pipe away from the circulation pump is fixedly connected to an output joint. When the quenching oil cools the nickel-titanium alloy spring, first start the circulation pump to drive the quenching oil to enter the input pipe from the input joint, then enter the output pipe from the input pipe, and finally the quenching oil enters the cavity through the output joint from the output pipe and circulates. During the movement, the quenching oil is quickly cooled, which can slow down the heating rate of the quenching oil, solve the problem of slightly insufficient cooling efficiency resulting in a relatively long waiting period, and has high working efficiency.

[0004] However, in the above patent, in order to improve the cooling treatment of the quenching oil, the quenching oil is pumped out and circulated through the output pipe. The output pipe only cools the pumped-out quenching oil through the operation of a cooling fan below the quenching oil tank. Such a cooling method not only has a short time for the quenching oil to be removed from the inside of the tank for heat dissipation, but also when the cooling fan generates air flow during operation, it cannot fully contact different positions of the output pipe to cool the quenching oil flowing inside, resulting in insufficient cooling efficiency of the quenching oil and affecting the quenching and cooling quality of the nickel-titanium alloy spring by the quenching oil. Therefore, a new technical solution needs to be designed to solve this problem. Summary of the Invention

[0005] The purpose of the present invention is to provide a quenching oil circulation cooling device for nickel-titanium alloy springs, which solves the problems raised in the background technique.

[0006] To achieve the above object, the present invention provides the following technical solutions: A suction pipe is fixedly installed on the side of the bottom end inside the fuel storage tank, and a drain pipe is fixedly installed on the other side of the top end inside the fuel storage tank;

[0007] A connecting pipe is fixedly communicated with the side of the suction pipe, and a conveying pipe is fixedly communicated with the side of the drain pipe. A cooling tank is fixedly installed on the outer surface of the fuel storage tank, and the side of the connecting pipe and the bottom of the outer side of the cooling tank are fixedly connected through penetration. The side of the conveying pipe and the side of the top of the cooling tank are fixedly connected through penetration;

[0008] A fixed straight pipe is fixedly installed horizontally inside the cooling tank, and the number of the fixed straight pipes is several groups. A fixed elbow pipe is fixedly communicated between the sides of every two groups of the fixed straight pipes, and the sides of the connecting pipe and the conveying pipe are fixedly connected and communicated with the fixed elbow pipe;

[0009] A liquid suction pipe is fixedly installed on the inner top of the cooling tank, and a liquid discharge pipe is fixedly installed on the inner bottom of the cooling tank. The middle of the top of the liquid suction pipe is fixedly communicated with an output pipe, and the middle of the side of the liquid discharge pipe is fixedly communicated with an input pipe. A heat dissipation box is fixedly installed on the outer top surface of the cooling tank. An installation pipe is fixedly installed vertically through the inside of the heat dissipation box, and the top of the installation pipe is fixedly connected with the bottom of the output pipe, and the bottom of the installation pipe is fixedly connected with the input pipe.

[0010] By adopting the above technical solutions, through the communication function of the fixed straight pipe and the fixed elbow pipe, and combined with the communication function of the liquid suction pipe and the liquid discharge pipe, while increasing the flow time of the quenching oil inside the cooling tank, the coolant can fully contact the fixed straight pipe and the fixed elbow pipe to cool the quenching oil flowing inside them. At the same time, the fluidity of the coolant is improved, further improving the cooling effect of the coolant on the quenching oil conveyed inside the fixed straight pipe and the fixed elbow pipe, and ensuring the quenching and cooling use quality of the quenching oil for the nickel-titanium alloy spring.

[0011] As a preferred embodiment of the present invention, a filter screen frame is placed obliquely and movably on the side of the bottom end inside the fuel storage tank, and the filter screen frame is located outside the suction pipe, and a bearing plate is fixedly installed at the bottom of the side of the filter screen frame.

[0012] By adopting the above technical solutions, through the structural function of the filter screen frame, it can ensure the extraction and filtration treatment of the quenching oil by the suction pipe.

[0013] As a preferred embodiment of the present invention, drive rods are vertically and fixedly installed on both sides of the top surface of the filter screen frame. Sliding grooves are formed in both ends of the inner side of the oil storage tank, and the drive rods are slidably inserted into the sliding grooves. A hand-pulling plate is fixedly installed between the tops of the two drive rods, and the bottom surface of the hand-pulling plate is movably attached to the top surface of the oil storage tank. Limit bolts are screwed through the inner sides of both ends of the hand-pulling plate, and the bottoms of the limit bolts are screwed to the top of the oil storage tank.

[0014] By adopting the above technical solution, the reasonable transmission connection between the hand-pulling plate and the filter screen frame is ensured through the transmission connection of the drive rods.

[0015] As a preferred embodiment of the present invention, a temperature sensor is fixedly installed at the bottom of the inner side of the oil storage tank, and a controller is fixedly installed on the top surface of the outer side of the cooling tank.

[0016] By adopting the above technical solution, the automatic operation of the overall mechanism can be improved through the structural functions of the controller and the temperature sensor.

[0017] As a preferred embodiment of the present invention, a liquid injection pipe is vertically and fixedly communicated with the side of the top of the cooling tank, and a sealing cover is screwed to the top of the liquid injection pipe.

[0018] By adopting the above technical solution, it is convenient to add and inject the coolant into the cooling tank for cooling use through the structural function of the liquid injection pipe.

[0019] As a preferred embodiment of the present invention, a second circulation pump is fixedly installed on the outer side of the connecting pipe, a booster pump is fixedly installed on the outer side of the conveying pipe, and the bottom of the installation pipe and the top of the input pipe are fixedly connected and communicated through a first circulation pump.

[0020] By adopting the above technical solution, the pressurized transportation of the quenching oil and the circulating extraction and transportation treatment of the coolant are realized through the structural functions of the booster pump and the first circulation pump.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. In the present invention, coolant is injected inside the cooling box. After a plurality of fixed straight pipes are connected and placed inside the cooling box through fixed bent pipes, by combining the extraction of quenching oil by the oil extraction pipe, the quenching oil stored inside the storage oil tank can be transported into the fixed bent pipes and the fixed straight pipes. This allows for an increase in the flow time of the quenching oil inside the cooling box, and enables the coolant to fully contact the fixed straight pipes and the fixed bent pipes to cool the quenching oil flowing inside them. Subsequently, by combining the liquid extraction pipe and the liquid discharge pipe provided on both sides inside the cooling box, the coolant stored inside the cooling box can be extracted and made to flow through the corresponding heat dissipation box. By combining the heat dissipation fan inside the heat dissipation box, the coolant can be cooled while improving its fluidity, further enhancing the cooling effect of the coolant on the quenching oil transported inside the fixed straight pipes and the fixed bent pipes, and ensuring the quality of the quenching and cooling of the nickel-titanium alloy spring using the quenching oil.

[0023] 2. In the present invention, a filter screen frame is provided on the side of the oil extraction pipe. When the oil extraction pipe extracts the quenching oil inside the storage oil tank for circulating cooling, solid impurities doped inside the quenching oil body can be filtered and removed, preventing the nickel-titanium alloy spring metal debris doped inside the oil body from clogging the pipeline and affecting the flow cooling rate of the quenching oil, and further ensuring the cooling and temperature reduction efficiency of the quenching oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Other features, objectives, and advantages of the present invention will become more apparent by reading the detailed description of the non-limiting embodiments with reference to the following drawings:

[0025] Figure 1 is the overall three-dimensional structure schematic diagram of a nickel-titanium alloy spring quenching oil circulating cooling device of the present invention;

[0026] Figure 2 is the overall cooling box structure schematic diagram of a nickel-titanium alloy spring quenching oil circulating cooling device of the present invention;

[0027] Figure 3 is the top view sectional structure schematic diagram of the storage oil tank of a nickel-titanium alloy spring quenching oil circulating cooling device of the present invention.

[0028] In the figure: 1, storage oil tank; 11, oil extraction pipe; 12, oil discharge pipe; 13, connecting pipe; 14, delivery pipe; 2, cooling box; 21, fixed straight pipe; 22, fixed bent pipe; 23, liquid extraction pipe; 24, output pipe; 25, heat dissipation box; 26, installation pipe; 27, first circulation pump; 28, input pipe; 29, liquid discharge pipe; 3, second circulation pump; 31, booster pump; 32, liquid injection pipe; 33, sealing cover; 4, filter screen frame; 41, bearing plate; 42, transmission rod; 43, sliding groove; 44, hand-pulling plate; 45, limit bolt; 5, controller; 51, temperature sensor. Detailed implementation manners

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0030] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0031] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense. For example, they can be fixedly connected and set, or detachably connected and set, or integrally connected and set. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. The models of the electrical appliances provided in the present invention are only for reference, and different models of electrical appliances with the same function can be replaced according to actual use situations.

[0032] Please refer to Figures 1-3 , the present invention provides a technical solution: a nickel-titanium alloy spring quenching oil circulating cooling device. A suction pipe 11 is fixedly installed on the side of the inner bottom end of a storage tank 1, and a drain pipe 12 is fixedly installed on the other side of the inner top end of the storage tank 1. A connecting pipe 13 is fixedly communicated with the side of the suction pipe 11, and a conveying pipe 14 is fixedly communicated with the side of the drain pipe 12. A cooling box 2 is fixedly installed on the outer surface of the storage tank 1, and the side of the connecting pipe 13 and the bottom of the outside of the cooling box 2 are fixedly connected through penetration. The side of the conveying pipe 14 and the side of the top of the cooling box 2 are fixedly connected through penetration. A fixed straight pipe 21 is fixedly installed horizontally in the cooling box 2, and the number of the fixed straight pipes 21 is several groups. A fixed elbow pipe 22 is fixedly communicated between the sides of every two groups of fixed straight pipes 21, and the sides of the connecting pipe 13 and the conveying pipe 14 are both fixedly connected with the fixed elbow pipe 22. A liquid suction pipe 23 is fixedly installed on the inner top of the cooling box 2, and a liquid discharge pipe 29 is fixedly installed on the inner bottom of the cooling box 2. The middle of the top of the liquid suction pipe 23 is fixedly communicated with an output pipe 24, and the middle of the side of the liquid discharge pipe 29 is fixedly communicated with an input pipe 28. A heat dissipation box 25 is fixedly installed on the outer surface of the top of the cooling box 2. An installation pipe 26 is fixedly installed vertically through the heat dissipation box 25, and the top of the installation pipe 26 is fixedly connected with the bottom of the output pipe 24, and the bottom of the installation pipe 26 is fixedly connected with the input pipe 28. A second circulation pump 3 is fixedly installed on the outside of the connecting pipe 13, and a booster pump 31 is fixedly installed on the outside of the conveying pipe 14.

[0033] In an alternative embodiment, a temperature sensor 51 is fixedly installed at the inner bottom of the fuel storage tank 1, and a controller 5 is fixedly installed on the outer top surface of the cooling tank 2. The signal output end of the temperature sensor 51 is electrically connected to the signal input end of the controller 5, and the signal output end of the controller 5 is electrically connected to the signal input ends of the first circulation pump 27, the second circulation pump 3, and the booster pump 31.

[0034] In an alternative embodiment, a filter screen frame 4 is placed obliquely and movably at the inner bottom side of the fuel storage tank 1, and the filter screen frame 4 is located outside the oil suction pipe 11. A bearing plate 41 is fixedly installed at the bottom side of the filter screen frame 4. Transmission rods 42 are vertically fixedly installed on both side surfaces of the top of the filter screen frame 4. Sliding grooves 43 are formed in both inner ends of the side of the fuel storage tank 1, and the transmission rods 42 are slidably inserted into the sliding grooves 43. A hand-pulling plate 44 is fixedly installed between the tops of the two groups of transmission rods 42, and the bottom surface of the hand-pulling plate 44 is movably attached to the top surface of the fuel storage tank 1. Limit bolts 45 are screwed through the inner ends of both sides of the hand-pulling plate 44, and the bottoms of the limit bolts 45 are screwed to the top of the fuel storage tank 1.

[0035] In an alternative embodiment, a liquid injection pipe 32 is vertically fixedly communicated with the side of the top of the cooling tank 2, and a sealing cover 33 is screwed to the top of the liquid injection pipe 32.

[0036] In an alternative embodiment, the bottom of the installation pipe 26 and the top of the input pipe 28 are fixedly connected and communicated through the first circulation pump 27.

[0037] During operation, after pouring the quenching oil to be used into the interior of the storage tank 1, place the nickel-titanium alloy spring to be quenched and cooled in the interior of the storage tank 1 and soak it in the quenching oil. Then, simultaneously start the controller 5 and the temperature sensor 51. After rotating the sealing cover 33 to move it away from the top of the liquid injection pipe 32, inject the coolant into the interior of the cooling tank 2 through the liquid injection pipe 32. After the quenching oil has been used for a long time, the temperature sensor 51 collects the temperature information of the quenching oil in the interior of the storage tank 1 and transmits it to the interior of the controller 5. Then, the controller 5 analyzes the temperature information and compares it with a preset threshold value. When the threshold value is exceeded, start the first circulation pump 27, the second circulation pump 3, and the booster pump 31. Under the operation of the second circulation pump 3, the quenching oil is extracted through the oil suction pipe 11 and, under the connection effect of the connecting pipe 13, is transported to the interior of the fixed elbow pipe 22 and the fixed straight pipe 21 located in the cooling tank 2. Then, the quenching oil can flow in the fixed straight pipe 21 and the fixed elbow pipe 22 in the interior of the cooling tank 2, enabling the coolant to cool down the flowing quenching oil. Subsequently, after the boosting treatment by the booster pump 31, the cooled quenching oil is re-discharged and transported back to the interior of the storage tank 1 through the delivery pipe 14 and the drain pipe 12, realizing the circulating cooling treatment of the quenching oil. At the same time, simultaneously start the cooling fan in the radiator box 25, so that under the operation of the first circulation pump 27, the coolant in the interior of the cooling tank 2 is transported to the interior of the installation pipe 26 through the liquid extraction and delivery pipe 23 and the output pipe 24. The cooling fan can quickly dissipate the heat of the coolant during its operation and rotation. Subsequently, after the heat is dissipated and cooled down, the coolant is circulated back to the interior of the cooling tank 2 through the input pipe 28 and the drain pipe 29 to cool down the quenching oil. After a long time of cooling and treating the quenching oil, turn the limit bolt 45 to move it away from the top of the storage tank 1, then lift the pull plate 44 to drive the filter screen frame 4 to vertically lift synchronously, and clean the solid debris filtered and accumulated on its surface to prevent it from affecting the extraction rate of the quenching oil by the oil suction pipe 11.

[0038] In addition, the components included in a nickel-titanium alloy spring quenching oil circulating cooling device according to the present invention are all common standard parts or parts known to those skilled in the art. Their structures and principles can all be known by those skilled in the art through technical manuals or obtained through conventional experimental methods. At the idle place of this device, connect all the above-mentioned electrical components, which refer to power components, electrical components, and the adapted monitoring computer and power supply through wires. For the specific connection means, reference should be made to the following working principle to complete the electrical connection according to the sequential working order among the electrical components. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process and will not explain the electrical control.

[0039] The foregoing has shown and described the basic principles, main features and advantages of the present invention. For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and without departing from the spirit or basic features of the present invention, the present invention can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention. Any reference signs in the claims should not be construed as limiting the claims concerned.

[0040] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A nickel-titanium alloy spring quenching oil circulation cooling device, comprising an oil storage tank (1), characterized in that: An oil extraction pipe (11) is fixedly installed on the side of the bottom end of the oil storage tank (1), and an oil discharge pipe (12) is fixedly installed on the other side of the top end of the oil storage tank (1); The side of the oil extraction pipe (11) is fixedly connected to a connecting pipe, the side of the oil discharge pipe (12) is fixedly connected to a delivery pipe (14), a cooling box (2) is fixedly installed on the outer surface of the oil storage tank (1), and the side of the connecting pipe (13) and the outer bottom of the cooling box (2) are fixedly connected, and the side of the delivery pipe (14) and the top side of the cooling box (2) are fixedly connected; A fixed straight pipe (21) is transversely fixedly installed inside the cooling box (2), and the number of the fixed straight pipes (21) is a plurality of groups, and a fixed curved pipe (22) is fixedly connected between the sides of every two groups of the fixed straight pipes (21), and the sides of the connecting pipe (13) and the conveying pipe (14) are fixedly connected to the fixed curved pipe (22); A liquid extraction pipe (23) is fixedly installed on the top of the inner side of the cooling box (2), a liquid discharge pipe (29) is fixedly installed on the bottom of the inner side of the cooling box (2), the middle end of the top of the liquid extraction pipe (23) is fixedly connected to the output pipe (24), the middle end of the side of the liquid discharge pipe (29) is fixedly connected to the input pipe (28), a heat dissipation box (25) is fixedly installed on the top surface of the outer side of the cooling box (2), a mounting pipe (26) is vertically penetrated and fixedly installed inside the heat dissipation box (25), the top of the mounting pipe (26) and the bottom of the output pipe (24) are fixedly connected, and the bottom of the mounting pipe (26) and the input pipe (28) are fixedly connected.

2. A nickel-titanium alloy spring quenching oil circulation cooling device according to claim 1, characterized in that: A filter frame (4) is placed on the bottom side of the oil storage tank (1) in an inclined and movable manner, and the filter frame (4) is located outside the oil extraction pipe (11). A bearing plate (41) is fixedly installed on the bottom of the side of the filter frame (4).

3. A nickel-titanium alloy spring quenching oil circulation cooling device according to claim 2, characterized in that: Transmission rods (42) are vertically fixedly mounted on both sides of the top of the filter frame (4), and sliding grooves (43) are provided inside both ends of the side of the oil storage tank (1), and the transmission rods (42) are slidably inserted into the sliding grooves (43).

4. A nickel-titanium alloy spring quenching oil circulation cooling device according to claim 3, characterized in that: A hand-pull plate (44) is fixedly installed between the tops of the two groups of transmission rods (42), and the bottom surface of the hand-pull plate (44) is movably fitted to the top surface of the oil storage tank (1). Limiting bolts (45) are threadedly penetrated and screwed into the inside of both ends of the side of the hand-pull plate (44), and the bottom of the limiting bolt (45) is threadedly screwed into the top of the oil storage tank (1).

5. The nickel-titanium alloy spring quenching oil circulation cooling device according to claim 1, characterized in that: A temperature sensor (51) is fixedly mounted on the inner bottom of the oil storage tank (1), and a controller (5) is fixedly mounted on the outer top surface of the cooling box (2).

6. A nickel-titanium alloy spring quenching oil circulation cooling device according to claim 1, characterized in that: A liquid injection pipe (32) is vertically fixedly connected to the side of the top of the cooling box (2), and a sealing cover (33) is screwed on the top of the liquid injection pipe (32) via a thread.

7. The nickel-titanium alloy spring quenching oil circulation cooling device according to claim 1, characterized in that: A second circulation pump (3) is fixedly installed on the outside of the connecting pipe (13), and a booster pump (31) is fixedly installed on the outside of the delivery pipe (14).

8. The nickel-titanium alloy spring quenching oil circulation cooling device according to claim 1, characterized in that: The bottom of the installation pipe (26) and the top of the input pipe (28) are fixedly connected via a first circulation pump (27).

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