Oil temperature adjusting device for ring rolling machine

Abstract

The utility model relates to the technical field of ring rolling machine auxiliary equipment, in particular to an oil temperature adjusting device for a ring rolling machine, which comprises a support frame, an oil inlet pipe and a water inlet pipe are arranged at the top of the support frame, and first, second, third and fourth heat exchange cylinders communicated with the water inlet pipe are fixedly mounted in the support frame. A first oil passing pipe, a second oil passing pipe, a third oil passing pipe and a fourth oil passing pipe are fixedly installed in the first heat exchange cylinder, the second heat exchange cylinder, the third heat exchange cylinder and the fourth heat exchange cylinder respectively, the inlet end of each oil passing pipe is communicated with an oil inlet pipe, the outlet end of each oil passing pipe is communicated with an oil outlet pipe, and the oil outlet pipe is communicated with a ring rolling machine hydraulic oil tank. According to the utility model, the oil temperature of the hydraulic oil can be adjusted without shutting down the ring rolling machine by an operator, the continuous and efficient operation of the ring rolling machine can be ensured, the leakage of the hydraulic oil can be effectively avoided, the neatness of an operation environment is ensured, the safety risk is reduced, and the occurrence of safety accidents is avoided, so that the device has very wide application prospects.

Description

Technical Field

[0001] This utility model relates to the technical field of auxiliary equipment for ring rolling machines, and specifically discloses an oil temperature regulating device for ring rolling machines. Background Technology

[0002] A ring rolling mill is a forging and pressing equipment used to manufacture ring-shaped parts. It achieves reduced wall thickness, increased diameter, and shaped cross-sectional profiles through continuous localized plastic deformation, thereby producing ring-shaped mechanical parts of various shapes and sizes, such as bearing rings, gear rings, flanges, hubs, thin-walled cylindrical parts, wind turbine flanges, and high-neck flanges. Ring rolling mills generally require a hydraulic system, which consists of a hydraulic oil tank and pipelines. Its main functions include energy transmission, lubrication, cooling, and control. By circulating hydraulic oil through the pipelines inside the ring rolling mill, the oil not only absorbs and dissipates the heat generated by the system, thus providing cooling, but also maintains the stable operation of the hydraulic system, preventing performance degradation or malfunctions caused by high temperatures.

[0003] Currently, after prolonged operation, the hydraulic oil temperature of the ring rolling machine requires adjustment. Generally, on-site operators use a draining and refilling method for oil temperature adjustment; specifically, the operator drains about one-quarter of the old oil and, based on the ring rolling machine's operating parameters, injects an appropriate amount of room-temperature hydraulic oil into the hydraulic tank to ensure the hydraulic circuit of the ring rolling machine maintains a stable temperature. However, this existing technology requires the operator to shut down the ring rolling machine during actual operation, thus consuming significant production time. Furthermore, hydraulic oil leakage is inevitable during the draining process, which can contaminate the working environment and, in severe cases, easily lead to explosions, fires, and other accidents, posing a high safety risk. Utility Model Content

[0004] In view of the problems of wasted production time and high safety risks in the current process of regulating hydraulic oil temperature in ring rolling machines, this utility model provides an oil temperature regulating device for ring rolling machines.

[0005] To solve the above problems, this utility model provides the following technical solution:

[0006] An oil temperature regulating device for a ring rolling machine includes a support frame. The top of the support frame is provided with an oil inlet pipe connected to the hydraulic oil tank of the ring rolling machine. A water inlet pipe connected to a condenser is provided on the side of the oil inlet pipe. A first heat exchanger, a second heat exchanger, a third heat exchanger, and a fourth heat exchanger are fixedly installed vertically and evenly distributed inside the support frame. The inner cavities of the first, second, third, and fourth heat exchangers are all connected to the water inlet pipe. Water outlet pipes are fixedly installed on the outer walls of the four heat exchange cylinders. First oil passage pipe, second oil passage pipe, third oil passage pipe, and fourth oil passage pipe are fixedly installed inside the first, second, third, and fourth heat exchange cylinders, respectively. The inlet ends of the first, second, third, and fourth oil passage pipes are all connected to the oil inlet pipe, and the outlet ends of the first, second, third, and fourth oil passage pipes are all connected to the oil outlet pipe. The oil outlet pipe is connected to the hydraulic oil tank of the ring rolling machine.

[0007] Preferably, a water pressure sensor is fixedly installed on the water inlet pipe, and an oil pressure sensor is fixedly installed on the oil outlet pipe. Both the water pressure sensor and the oil pressure sensor are securely connected to the support frame.

[0008] Preferably, the first heat exchange cylinder, the second heat exchange cylinder, the third heat exchange cylinder, and the fourth heat exchange cylinder are provided with connecting pipes on both sides that are connected to their inner cavities. The connecting pipes on the same side are connected to the water collection pipe for unified flow, and the water collection pipe on one side is connected to the water inlet pipe.

[0009] Preferably, all the water outlet pipes are Z-shaped tubular structures, and the outlet end of each water outlet pipe is arranged at a height higher than the connecting end.

[0010] Preferably, the first oil passage pipe, the second oil passage pipe, the third oil passage pipe, and the fourth oil passage pipe are respectively fixedly connected to a first oil collection pipe and a second oil collection pipe at both ends. The first oil collection pipe is connected to the oil inlet pipe, and the second oil collection pipe is connected to the oil outlet pipe.

[0011] Preferably, an oil container is fixedly installed inside the support frame, a first guide pipe connected to the second oil collection pipe is installed on the top of the oil container, and a second guide pipe connected to the oil outlet pipe is installed on the bottom side wall of the oil container.

[0012] Preferably, a centrifugal oil pump is fixedly installed on the oil outlet pipe.

[0013] Preferably, the inlet height of the oil inlet pipe is lower than the outlet height of the oil outlet pipe, and the inlet height of the water inlet pipe is the same as the inlet height of the oil inlet pipe.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] This invention introduces high-temperature hydraulic oil from the ring rolling machine's hydraulic oil tank into various oil pipes and injects condensate into each heat exchange cylinder, thereby achieving heat exchange for the hydraulic oil and rapidly cooling it. This neutralizes the high-temperature hydraulic oil in the ring rolling machine's hydraulic oil tank, bringing it within the standard temperature range. This invention allows for hydraulic oil temperature regulation without requiring operators to shut down the ring rolling machine, ensuring continuous and efficient operation. It also effectively prevents hydraulic oil leakage, ensuring a clean working environment, reducing safety risks, and eliminating accidents. Therefore, it has a very broad application prospect. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall device structure of this utility model. Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the overall device structure of this utility model. Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the installation structure of the oil tank and centrifugal oil pump of this utility model;

[0020] Figure 4 This is a schematic diagram of the first oil passage pipe, second oil passage pipe, third oil passage pipe, fourth oil passage pipe, and installation structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting pipe installation structure of this utility model;

[0022] In the diagram: 1. Support frame, 2. Oil inlet pipe, 3. Water inlet pipe, 4. First heat exchanger, 5. Second heat exchanger, 6. Third heat exchanger, 7. Fourth heat exchanger, 8. Water outlet pipe, 9. First oil passage pipe, 10. Second oil passage pipe, 11. Third oil passage pipe, 12. Fourth oil passage pipe, 13. Oil outlet pipe, 14. Water pressure sensor, 15. Oil pressure sensor, 16. Connecting pipe, 17. Water collection pipe, 18. First oil collection pipe, 19. Second oil collection pipe, 20. Oil container, 21. First connecting pipe, 22. Second connecting pipe, 23. Centrifugal oil pump. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] This specific embodiment provides an oil temperature regulating device for a ring rolling mill, such as... Figures 1-5 As shown, the device includes a support frame 1, which is the mounting structure for the entire device and has a hollow interior. An oil inlet pipe 2 is provided at the top of the support frame 1, which can be connected to the hydraulic oil tank of the ring rolling machine, allowing hydraulic oil from the tank to enter the device through the inlet pipe 2. A water inlet pipe 3 is provided on the side of the oil inlet pipe 2, which can be connected to the outlet pipe of the condenser, allowing low-temperature condensate from the condenser to enter the device.

[0025] The support frame 1 houses a first heat exchanger 4, a second heat exchanger 5, a third heat exchanger 6, and a fourth heat exchanger 7, all arranged horizontally. These heat exchangers are vertically and evenly distributed from top to bottom. Each heat exchanger has an internal cavity and is fitted with a cap at both ends. Connecting pipes 16, communicating with the internal cavities of each heat exchanger, are located on both sides of each heat exchanger. The connecting pipes 16 on the same side converge via a water collection pipe 17. One water collection pipe 17 connects to the inlet pipe 3, allowing the condensate from the condenser to flow sequentially into each heat exchanger. Water outlet pipes 8 are fixedly installed on the outer walls of the first heat exchange cylinder 4, the second heat exchange cylinder 5, the third heat exchange cylinder 6, and the fourth heat exchange cylinder 7. The water outlet pipes 8 are all Z-shaped tubular structures. The outlet end of the water outlet pipe 8 can be connected to the circulating water circuit of the condenser. The arrangement height of the outlet end of the water outlet pipe 8 is higher than the connection end, so as to facilitate the temporary storage of condensate in each heat exchange cylinder.

[0026] The first heat exchange cylinder 4, the second heat exchange cylinder 5, the third heat exchange cylinder 6, and the fourth heat exchange cylinder 7 are respectively fixedly installed with a first oil passage pipe 9, a second oil passage pipe 10, a third oil passage pipe 11, and a fourth oil passage pipe 12. Each oil passage pipe is located at the axial position relative to the heat exchange cylinder, which facilitates the heat exchange of hydraulic oil. The inlet ends of the first oil passage pipe 9, the second oil passage pipe 10, the third oil passage pipe 11, and the fourth oil passage pipe 12 are fixedly connected to a first oil collection pipe 18, which is connected to the oil inlet pipe 2. The first oil collection pipe 18 can evenly deliver hydraulic oil to each oil passage pipe. The outlet ends of the first oil passage pipe 9, the second oil passage pipe 10, the third oil passage pipe 11, and the fourth oil passage pipe 12 are fixedly connected to a second oil collection pipe 19, which is connected to the oil outlet pipe 13. The oil outlet pipe 12 is connected to the hydraulic oil tank of the ring rolling machine. After heat exchange, the hydraulic oil can re-enter the hydraulic oil tank of the ring rolling machine through the oil outlet pipe 12, thereby assisting the operation of the ring rolling machine.

[0027] The support frame 1 is equipped with an oil tank 20, which is located at the bottom of the support frame 1. The top of the oil tank 20 is equipped with a first guide pipe 21 connected to the second oil collection pipe 19, and the bottom side wall of the oil tank 20 is equipped with a second guide pipe 22 connected to the oil outlet pipe 13. The oil tank 20 can be used to temporarily store hydraulic oil, which can avoid the pipe pressure imbalance caused by temperature difference, thus acting as a buffer container. On the other hand, it can increase the volume of hydraulic oil that the overall device can hold, thereby improving the practicality of the overall device.

[0028] A centrifugal oil pump 23 is fixedly installed on the oil outlet pipe 13. The inlet end of the centrifugal oil pump 23 is connected to the second guide pipe 22 of the oil tank 20. By setting the centrifugal oil pump 23, the centrifugal oil pump 23 can transport the hydraulic oil flowing through the oil tank 20 from a low level to a high level.

[0029] In addition, the inlet height of the oil inlet pipe 2 is lower than the outlet height of the oil outlet pipe 13, and the inlet height of the water inlet pipe 3 is the same as the inlet height of the oil inlet pipe 2. The above structural design facilitates the flow of hydraulic oil from the bottom of the ring rolling machine hydraulic oil tank and allows the heated hydraulic oil to be re-injected from the top of the ring rolling machine hydraulic oil tank, thereby increasing the overall coordination of the device operation.

[0030] The working principle of this utility model is as follows:

[0031] Hydraulic oil from the ring rolling machine's hydraulic oil tank enters the device through the inlet pipe 2 and is guided through the first oil collection pipe 18 to the first oil passage pipe 9, the second oil passage pipe 10, the third oil passage pipe 11, and the fourth oil passage pipe 12. Condensate from the condenser enters the device through the inlet pipe 3 and is guided through the water collection pipe 17 to the first heat exchange cylinder 4, the second heat exchange cylinder 5, the third heat exchange cylinder 6, and the fourth heat exchange cylinder 7. The hydraulic oil can fully exchange heat with the condensate. After heat exchange, the hydraulic oil enters the oil container 20 and is then re-injected into the ring rolling machine's hydraulic oil tank by the centrifugal oil pump 23, ensuring the temperature of the hydraulic oil in the ring rolling machine's hydraulic oil tank remains within the standard range. The condensate, after heat exchange, returns sequentially to the condensate pipeline through each outlet pipe 8, thus forming a complete circuit.

[0032] In this invention, condensate enters sequentially from the bottom into the first heat exchange cylinder 4, the second heat exchange cylinder 5, the third heat exchange cylinder 6, and the fourth heat exchange cylinder 7, while hydraulic oil is sequentially introduced from the top into the first oil passage pipe 9, the second oil passage pipe 10, the third oil passage pipe 11, and the fourth oil passage pipe 12. This design avoids pressure imbalance caused by instantaneous heat exchange between high-temperature hydraulic oil and low-temperature condensate, and also slows down the flow rate of high-temperature hydraulic oil through the pipelines, allowing it to cool down beforehand and facilitating subsequent heat exchange operations.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An oil temperature regulating device for a ring rolling machine, comprising a support frame (1), characterized in that, The top of the support frame (1) is provided with an oil inlet pipe (2) connected to the hydraulic oil tank of the ring rolling machine. The side of the oil inlet pipe (2) is provided with a water inlet pipe (3) connected to the condenser. The support frame (1) is fixedly installed with vertically and evenly distributed first heat exchange cylinder (4), second heat exchange cylinder (5), third heat exchange cylinder (6), and fourth heat exchange cylinder (7). The inner cavities of the first heat exchange cylinder (4), second heat exchange cylinder (5), third heat exchange cylinder (6), and fourth heat exchange cylinder (7) are all connected to the water inlet pipe (3). The outer walls of the first heat exchange cylinder (4), second heat exchange cylinder (5), third heat exchange cylinder (6), and fourth heat exchange cylinder (7) are all fixedly installed with water outlet pipes. 8) The first heat exchange cylinder (4), the second heat exchange cylinder (5), the third heat exchange cylinder (6), and the fourth heat exchange cylinder (7) are respectively fixedly installed with a first oil passage pipe (9), a second oil passage pipe (10), a third oil passage pipe (11), and a fourth oil passage pipe (12). The inlet ends of the first oil passage pipe (9), the second oil passage pipe (10), the third oil passage pipe (11), and the fourth oil passage pipe (12) are all connected to the oil inlet pipe (2). The outlet ends of the first oil passage pipe (9), the second oil passage pipe (10), the third oil passage pipe (11), and the fourth oil passage pipe (12) are all connected to the oil outlet pipe (13). The oil outlet pipe (13) is connected to the hydraulic oil tank of the ring rolling machine.

2. The oil temperature regulating device for a ring rolling machine according to claim 1, characterized in that, A water pressure sensor (14) is fixedly installed on the water inlet pipe (3), and an oil pressure sensor (15) is fixedly installed on the oil outlet pipe (13). Both the water pressure sensor (14) and the oil pressure sensor (15) are tightly connected to the support frame (1).

3. The oil temperature regulating device for a ring rolling machine according to claim 1, characterized in that, The first heat exchange cylinder (4), the second heat exchange cylinder (5), the third heat exchange cylinder (6), and the fourth heat exchange cylinder (7) are provided with connecting pipes (16) that communicate with their inner cavities on both sides. The connecting pipes (16) on the same side are connected to the water collection pipe (17) for unified flow. The water collection pipe (17) on one side is connected to the water inlet pipe (3).

4. The oil temperature regulating device for a ring rolling machine according to claim 1, characterized in that, All the water outlet pipes (8) are Z-shaped tubular structures, and the outlet end of the water outlet pipe (8) is arranged at a height higher than the connection end.

5. The oil temperature regulating device for a ring rolling machine according to claim 1, characterized in that, The first oil passage pipe (9), the second oil passage pipe (10), the third oil passage pipe (11), and the fourth oil passage pipe (12) are respectively fixedly connected to the first oil collection pipe (18) and the second oil collection pipe (19). The first oil collection pipe (18) is connected to the oil inlet pipe (2), and the second oil collection pipe (19) is connected to the oil outlet pipe (13).

6. The oil temperature regulating device for a ring rolling mill according to claim 1, characterized in that, An oil tank (20) is fixedly installed inside the support frame (1). A first guide pipe (21) connected to the second oil collection pipe (19) is installed on the top of the oil tank (20). A second guide pipe (22) connected to the oil outlet pipe (13) is installed on the bottom side wall of the oil tank (20).

7. The oil temperature regulating device for a ring rolling mill according to claim 1, characterized in that, A centrifugal oil pump (23) is fixedly installed on the oil outlet pipe (13).

8. The oil temperature regulating device for a ring rolling mill according to claim 1, characterized in that, The inlet height of the oil inlet pipe (2) is lower than the outlet height of the oil outlet pipe (13), and the inlet height of the water inlet pipe (3) is the same as the inlet height of the oil inlet pipe (2).

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