CN116274847A - Intelligent temperature control device and method for crank throw of precision warm forging press - Google Patents
Intelligent temperature control device and method for crank throw of precision warm forging press Download PDFInfo
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- CN116274847A CN116274847A CN202310071419.5A CN202310071419A CN116274847A CN 116274847 A CN116274847 A CN 116274847A CN 202310071419 A CN202310071419 A CN 202310071419A CN 116274847 A CN116274847 A CN 116274847A
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- 238000005242 forging Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 title claims abstract description 9
- 238000001816 cooling Methods 0.000 claims abstract description 85
- 238000009423 ventilation Methods 0.000 claims description 21
- 230000001105 regulatory effect Effects 0.000 claims description 2
- 230000005540 biological transmission Effects 0.000 abstract description 9
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 230000033001 locomotion Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 238000005299 abrasion Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000007405 data analysis Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000004088 simulation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K29/00—Arrangements for heating or cooling during processing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
- B21K1/00—Making machine elements
- B21K1/06—Making machine elements axles or shafts
- B21K1/08—Making machine elements axles or shafts crankshafts
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Automation & Control Theory (AREA)
- Forging (AREA)
Abstract
The invention relates to the manufacturing industry of high-end equipment, in particular to an intelligent temperature control device and method for a crank throw of a precision warm forging press, comprising a crank throw shaft diameter cooling circulation system and an intelligent precise temperature control system, wherein the crank throw shaft diameter cooling circulation system directly performs precise cooling function on a crank throw shaft diameter heating source of high-frequency forging operation by arranging a cooling hole on a crank throw and arranging an air inlet channel on a crank shaft or a connecting rod; the intelligent accurate temperature control system utilizes a temperature sensor, an air cooler, an electromagnetic valve and a PLC controller to intelligently control the diameter temperature rise of the crank shaft, thereby achieving the purpose of reducing the thermal deformation and further reducing the fit clearance. The invention has unique structural scheme, has the intelligent green manufacturing characteristics of obviously improving the operation precision, efficiency and reliability of a transmission system, improves the product precision by more than 70 percent compared with the national standard, improves the rotation speed of a crankshaft by 50-60 percent, prolongs the service life of a connecting rod shoe by more than 50 percent, and achieves the obvious effects of high-precision, high-speed rotation and accurate intelligent temperature control of a precise warm forging press and an automatic line complete machine thereof.
Description
Technical field:
the invention relates to the technical field of high-end equipment manufacturing industry, in particular to an intelligent temperature control device and method for a crank throw of a precision warm forging press.
The background technology is as follows:
at present, the structure of the existing mechanical press is shown in fig. 8, and the existing mechanical press comprises a machine body, wherein mounting through holes are formed in two sides of the upper portion of the machine body, a first supporting sleeve and a second supporting sleeve are respectively arranged in the mounting through holes, the supporting sleeves are fixed on the machine body through bolts, bearing bushes are arranged in the supporting sleeves, a crankshaft is arranged in an inner hole of each bearing bush, a connecting rod bush is arranged on the outer side of a crank in the middle of the crankshaft, a connecting rod cover and a connecting rod inner hole are arranged on each connecting rod bush, and the connecting rod bush, the connecting rod cover and the connecting rod are fixed together through double-headed screws and nuts.
When the device works, the connecting rod cover and the connecting rod tile reciprocate up and down along with the rotation of the crankshaft, the crank and the connecting rod tile form a sliding friction pair to rotate relatively, the crank and the connecting rod tile rotate relatively under the action of a working force, the temperature of the crank and the connecting rod tile continuously rises due to extrusion friction, the diameter of the crank shaft is thickened due to outward expansion after being heated, the diameter of the hole of the connecting rod tile is reduced due to inward expansion after being heated, and then the fit clearance between the diameter of the crank shaft and the connecting rod tile is gradually reduced. After the fit clearance between the crank shaft diameter and the connecting rod bush is reduced, on one hand, the fit precision and the rotation speed of a transmission system of the precise warm forging press are severely restricted and greatly improved; on the other hand, the quick abrasion, damage or locking shutdown accidents of the crank throw and the connecting rod shoe can be caused.
The existing structure can basically meet the requirements of a mechanical press with lower crankshaft rotating speed or low precision performance index requirements, but cannot meet the higher performance requirements of high-speed precise operation, stability and reliability of a high-speed precise warm forging press and an automatic production line thereof. With the continuous innovation of the technology, some technical problems are primarily improved, but through the finding of practical application effects, other deep key technical problems are needed to be further applied to basic research to seek breakthrough, such as the problem of shaft diameter thermal expansion caused by crank throw temperature rise of a crank shaft, the key technical restriction of neck clamping of the oil cooling patent technology of an international similar product is only overcome by intelligent cooling of cold air outside a connecting rod shoe, but the problem of crank shaft diameter temperature rise expansion still restricts the further improvement effect of precision and rotation speed (efficiency) of a crank and connecting rod shoe transmission system (fit clearance). Therefore, how to create an intelligent control system for the temperature rise of the crank shaft diameter of a precision warm forging press is still an urgent need to solve the key technical problems facing the intelligent manufacturing in the current constraint of the improvement of the intelligent equipment performance of a high-speed precision metal forming machine tool.
The foregoing is not necessarily a prior art, and falls within the technical scope of the inventors.
The invention comprises the following steps:
the invention aims to solve the problems in the prior art and provide the intelligent temperature control device and the intelligent temperature control method for the crank throw of the precision warm forging press, which have the advantages of reasonable structural design, precise intelligent temperature control, obvious temperature control effect, prolonged service life of a connecting rod shoe and obvious improvement of the speed, precision, efficiency and reliability of the whole machine.
The invention realizes the aim by adopting the following technical scheme:
accurate warm forging press crank intelligent temperature control device includes:
the crank shaft path cooling circulation system comprises a plurality of cooling holes axially arranged on a crank, wherein the cooling holes are positioned on one side of the crank far away from the axis of a crank, the cooling holes are arranged at intervals along the circumferential direction of the crank, one end of each cooling hole is connected with a first cold air deflector, the other end of each cooling hole is connected with a second cold air deflector, all the cooling holes are communicated in series in an S shape, an exhaust hole is arranged on each second cold air deflector, a connecting rod tile is arranged on the crank, the connecting rod tile is arranged on a connecting rod cover and an inner hole of the connecting rod, and the first cold air deflector is communicated with an air inlet channel A arranged on the crank and the crank, or the cooling holes positioned at the starting end are directly communicated with an air inlet channel B arranged on the connecting rod and the connecting rod tile;
the intelligent accurate temperature control system comprises an air cooler, wherein the air cooler is connected with an electromagnetic valve, the electromagnetic valve is communicated with an air inlet air passage A or an air inlet air passage B through an air inlet pipe, a temperature sensor is arranged at the lower part in a connecting rod and close to a connecting rod tile, the temperature sensor is connected with a PLC, and the PLC is respectively connected with the air cooler and the electromagnetic valve.
The air inlet circuit A comprises a cooling air inlet hole A axially formed in the crankshaft and a cooling air vent A radially formed in the crank, a rotary joint communicated with the cooling air inlet hole A is arranged at the end part of the crankshaft and connected with an air inlet pipe, the cooling air inlet hole A is communicated with the cooling air vent A, and the cooling air vent A is connected with a first cold air deflector arranged on the crank.
The air inlet circuit B comprises a cooling air inlet hole B, the cooling air inlet hole B is arranged on one side of the lower portion in the connecting rod, a connector communicated with the cooling air inlet hole B is arranged on the connecting rod, the connector is connected with an air inlet pipe, a connecting rod tile ventilation hole communicated with the cooling air inlet hole B is radially formed in the connecting rod tile, an annular connecting rod tile ventilation groove is formed in the inner wall of the connecting rod tile, one end of the connecting rod tile ventilation groove is communicated with the connecting rod tile ventilation hole, the other end of the connecting rod tile ventilation groove is communicated with a crank ventilation hole arranged on a crank, and the crank ventilation hole is directly communicated with a cooling hole located at the starting end.
The two sides of the crank are respectively provided with a mounting groove, one of the mounting grooves is used for mounting the first cold air deflector, and the other mounting groove is used for mounting the second cold air deflector.
The intelligent temperature control method for the crank throw of the precise warm forging press comprises the intelligent temperature control device for the crank throw, when the temperature rise is detected by a temperature sensor or reaches a set value, a PLC controller controls an air cooler and an electromagnetic valve to start to work so as to convey cold air, the temperature, the flow and the flow rate of the cold air can be intelligently regulated and controlled according to set parameters of a system, the cold air in an air inlet pipe enters a cooling hole through an air inlet channel A or an air inlet channel B to carry out rapid intelligent temperature control on the diameter of the crank throw shaft, and when the temperature detected by the temperature sensor is recovered to be within a normal set value range, the PLC controller controls the air cooler and the electromagnetic valve to stop working.
By adopting the technical scheme, the invention can bring the following beneficial effects:
in consideration of important influence factors of temperature rise on the matching precision of a crank connecting rod transmission system, based on the application research of temperature control basic theory, a gas circuit temperature control and temperature detection control integrated technology system under intelligent temperature control is established, an innovative structural design and PLC control integrated technology is combined, a temperature data acquisition, data analysis, active early warning and early intervention mode is adopted, cold air is used as the cheapest medium for cooling, an on-machine body frequency conversion speed regulation air cooler and an electromagnetic valve are combined with an intelligent cooling system to set optimal parameters for controlling and adjusting the start-stop, flow speed and temperature of each air outlet during operation, and the cold air is input into a cooling hole of a crank to directly act, so that the crank connecting rod transmission link is completely in a direct contact state, the thermal temperature rise of high-speed movement under high-frequency forging operation is reduced, and the limit of the thermal temperature rise on the precision and efficiency improvement of the crank connecting rod transmission link is reduced. The structure innovation design of the intelligent temperature control device for the crank is adopted to remarkably improve the matching precision and the rotating speed between the crank and the connecting rod tile. The general temperature rise of the bearing bush in the prior art (national standard) is 40 ℃, the highest temperature is not more than 70 ℃, the experiment and simulation prediction prove that the innovative intelligent temperature control device technology effectively controls the temperature rise range of the high-speed rotating connecting rod bush within 10-30 ℃, the highest temperature is not more than 50 ℃, the ratio of the rotary motion clearance of the shaft diameter of the connecting rod bush and the shaft diameter of the crank throw is optimally reduced to 4-5/1000000 from 8-10/1000000 in the prior art, the product precision is improved by more than 70% compared with the national standard, the crankshaft rotation speed is improved by 50-60%, the precision, the efficiency and the reliability of the whole machine are obviously improved, and the service life of the connecting rod bush is prolonged by more than 50%.
Description of the drawings:
FIG. 1 is a schematic diagram of a crank intelligent temperature control device according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram of an air inlet channel a according to embodiment 1 of the present invention;
FIG. 3 is a side view of the intelligent temperature control device of embodiment 1 of the present invention;
FIG. 4 is a schematic diagram of a crank intelligent temperature control device according to embodiment 2 of the present invention;
fig. 5 is a schematic structural diagram of an air inlet channel B according to embodiment 2 of the present invention;
FIG. 6 is an enlarged view of part A of FIG. 5;
FIG. 7 is a side view of the intelligent temperature control device for a bell crank of embodiment 2 of the present invention;
FIG. 8 is a schematic view of a conventional mechanical press;
in the figure, 1, a crank, 2, a cooling hole, 3, a crankshaft, 4, a first cold air deflector, 5, a second cold air deflector, 6, an exhaust hole, 7, a connecting rod tile, 8, a connecting rod cover, 9, a connecting rod, 10, an air inlet passage A,1001, a cooling air inlet hole A,1002, a cooling air vent A,1003, a rotary joint, 11, an air inlet passage B,1101, a cooling air inlet hole B,1102, a joint, 1103, a connecting rod tile air vent, 1104, a connecting rod tile air vent groove, 1105, a crank air vent, 12, an air cooler, 13, an electromagnetic valve, 14, an air inlet pipe, 15, a temperature sensor, 16, a mounting groove, 17, a bearing bush, 18 and a machine body.
The specific embodiment is as follows:
in order to more clearly illustrate the general inventive concept, a detailed description is given below by way of example with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those described herein, and therefore the scope of the present invention is not limited to the specific embodiments disclosed below.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.
In the present invention, the terms "axial", "radial", "circumferential", "a", "B", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the location of the indicated technical feature.
In the present invention, unless explicitly stated and limited otherwise, the terms "provided," "configured," "connected," and the like are to be construed broadly, and for example, "provided" and "configured" may be fixedly mounted, removably mounted, or integrally formed; "coupled" may be directly connected or connected via an intermediate medium. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.
Example 1
As shown in fig. 1-3, the intelligent temperature control device for the crank throw of the precision warm forging press comprises:
the crank shaft path cooling circulation system comprises a plurality of cooling holes 2 axially arranged on a crank shaft 1, wherein the cooling holes 2 are positioned at one side of the crank shaft 2 far away from the axis of a crank shaft 3 (in the forging and pressing process of a precision warm forging press, when a connecting rod moves up and down repeatedly to a range close to a bottom dead center nominal pressure angle, the outer side surface of the crank shaft 1 starts to be acted by extrusion force, the friction between the outer side of the crank shaft 1 far away from the center position and the lower sliding contact surface of a connecting rod tile 7 is increased when the crank shaft is approaching to the bottom dead center, the friction between the outer side of the crank shaft 1 and the lower sliding contact surface of the connecting rod tile 4 is actually tested to be a heating root source, therefore, the cooling holes 2 are arranged at the heating source position on the crank shaft 1 for accurate cooling, the cooling effect is half-time), a plurality of the cooling holes 2 are arranged at intervals along the circumferential direction of the crank shaft 1, one end of the cooling holes 2 is connected with a first cold air deflector 4, the other end of the cooling holes 2 is connected with a second cold air deflector 5, the first cold air deflector 4 and the second cold air deflector 5 are communicated with the lower sliding contact surface of the crank shaft tile 7 (form a circulating cooling channel), the cooling channel is actually tested, the second air deflector 5 is provided with the cold air channel 6 is arranged on the crank shaft 1, and is connected with the connecting rod 7 in series with the crank shaft 7, and an air channel 7 is connected with the cold air channel 7, and an air channel 7, and is connected with the air channel 3, and is connected with the air channel and an air channel and is connected with the air channel and 3, and is provided with the cooling device and 3;
the intelligent accurate temperature control system comprises an air cooler 12, wherein the air cooler 12 is connected with an electromagnetic valve 13, the electromagnetic valve 13 is connected with an air inlet channel A10 through an air inlet pipe 14, a temperature sensor 15 is arranged at the lower part in a connecting rod 9 and close to a connecting rod tile 7, the temperature sensor 15 is connected with a PLC controller, and the PLC controller is respectively connected with the air cooler 12 and the electromagnetic valve 13. In consideration of important influencing factors of temperature rise on the matching precision of the crank 1 connecting rod 9 transmission system, based on the application research of temperature control basic theory, a gas circuit temperature control and temperature detection control integrated technology system under intelligent temperature control is established, an innovative structural design and PLC control integrated technology is combined, a temperature data acquisition, data analysis, active early warning and advanced intervention mode is adopted, cold air is used as the cheapest medium for cooling, during operation, the start-stop, flow speed, flow rate and temperature of each gas outlet are controlled and adjusted by setting optimized parameters by the upper frequency conversion speed-regulating air cooler 12 and the electromagnetic valve 13 of the machine body 18 in combination with an intelligent cooling system, and cold air is input into a cold air circulation channel (an air inlet gas circuit and a cooling hole) of the crank 1 to directly act, so that the cold air circulation channel is completely in a direct contact state, the thermal temperature rise of high-speed movement under high-frequency operation is reduced, the range of the temperature rise of the crank 1 shaft path is shortened, and the restriction of the thermal temperature rise on the improvement of the forging and stamping precision efficiency of the crank 1 connecting rod 9 transmission link is reduced. In practical application, the intelligent temperature control system can be matched with the connecting rod bush to more effectively realize the comprehensive intelligent rapid accurate cooling excellent effect of the crank throw and the bearing bush. The structure innovation design of the intelligent temperature control system of the crank is adopted to obviously improve the matching precision and the rotating speed between the crank 1 and the connecting rod tile 4. The general temperature of the bearing bush 17 in the prior art (national standard) is raised to 40 ℃, the highest temperature is not more than 70 ℃, the experiment and simulation prediction prove that the innovative intelligent temperature control system technology effectively controls the temperature rise range of the high-speed rotating connecting rod bush within 10-30 ℃, the highest temperature is not more than 50 ℃, the ratio of the rotating movement gap of the connecting rod bush and the crank shaft diameter to the shaft diameter is optimally reduced to 4-5/1000000 from 8-10/1000000 in the prior art, the product precision is improved by more than 70% compared with the national standard, the crankshaft rotating speed is improved by 50-60%, the precision, the efficiency and the reliability of the whole machine are obviously improved, and the service life of the connecting rod bush 7 is prolonged by more than 50%.
The air inlet path A10 comprises a cooling air inlet hole A1001 axially formed in the crankshaft 3 and a cooling air vent A1002 radially formed in the crank 2, a rotary joint 1003 communicated with the cooling air inlet hole A1001 is arranged at the end part of the crankshaft 3, the rotary joint 1003 is connected with the air inlet pipe 14, the cooling air inlet hole A1001 is communicated with the cooling air vent A1002, and the cooling air vent A1003 is connected with a first cold air deflector 4 arranged on the crank 1. The specific implementation mode of the air inlet air path is provided, so that cold air can be ensured to rapidly enter the cooling hole 2 for circulating cooling under the sealed condition.
The two sides of the crank 1 are respectively provided with a mounting groove 16, wherein one mounting groove 16 is used for mounting the first cold air deflector 4, and the other mounting groove 16 is used for mounting the second cold air deflector 5. Reliable installation of the first cold air deflector 4 and the second cold air deflector 5 is achieved.
Example 2
As shown in fig. 4 to 7, this embodiment differs from embodiment 1 in that:
the cooling hole 2 at the initial end is directly communicated with an air inlet channel B11 arranged on the connecting rod 9 and the connecting rod tile 7, and the air inlet channel B11 is communicated with an air inlet pipe 14.
The air inlet path B11 comprises a cooling air inlet hole B1101, the cooling air inlet hole B1101 is arranged on one side of the lower portion in the connecting rod 9, a connector 1102 communicated with the cooling air inlet hole B1101 is arranged on the connecting rod 9, the connector 1102 is connected with an air inlet pipe 14, a connecting rod tile ventilation hole 1103 communicated with the cooling air inlet hole B1101 is radially arranged on the connecting rod tile 7, a circular connecting rod tile ventilation groove 1104 is arranged on the inner wall of the connecting rod tile 7, one end of the connecting rod tile ventilation groove 1104 is communicated with the connecting rod tile ventilation hole 1103, the other end of the connecting rod tile ventilation groove is communicated with a crank ventilation hole 1105 arranged on the crank 1, and the crank ventilation hole 1105 is communicated with a cooling hole 2 at the starting end. Another implementation mode of the air inlet path is provided, and the air inlet mode realizes the simultaneous cooling of the shaft diameter of the crank 1 and the connecting rod tile 7 related to the heating source.
The intelligent temperature control method for the crank throw of the precision warm forging press comprises the intelligent temperature control device for the crank throw, when the temperature sensor 15 detects temperature rise or reaches a set value, the PLC controller controls the air cooler 12 and the electromagnetic valve 13 to start working and conveying cold air of variable, cold air in the air inlet pipe 14 enters the cooling hole 2 through the air inlet air passage A10 or the air inlet air passage B11 to carry out rapid intelligent temperature control on the crank throw 1, and when the temperature detected by the temperature sensor 15 is recovered to be within a normal set value range, the PLC controller controls the air cooler 12 and the electromagnetic valve 13 to stop working. The invention solves the problem that the crank thermal expansion is seriously restricted by the matching precision and the rotation speed of a transmission system due to continuous temperature rise caused by high-speed rotation friction heating between a precision warm forging press shaft and a shoe, avoids the rapid abrasion or damage of the connecting rod shoe 7, prolongs the service life of the connecting rod shoe 7, effectively improves the movement speed, precision, production efficiency and processing product quality of the precision warm forging press, and realizes the effective breakthrough of the core key technology of the precision warm forging press and an automatic production line thereof in the aspect of high-efficiency precise intelligent green manufacturing.
The above embodiments are not to be taken as limiting the scope of the invention, and any alternatives or modifications to the embodiments of the invention will be apparent to those skilled in the art and fall within the scope of the invention.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Claims (4)
1. Accurate warm forging press crank intelligent temperature control device, its characterized in that includes:
the crank shaft diameter cooling circulation system comprises a plurality of cooling holes axially arranged on a crank, wherein the cooling holes are positioned on one side of the crank far away from the axis of a crank, the cooling holes are arranged at intervals along the circumferential direction of the crank, one end of each cooling hole is connected with a first cold air deflector, the other end of each cooling hole is connected with a second cold air deflector, all the cooling holes are communicated in series in an S shape, an exhaust hole is arranged on each second cold air deflector, a connecting rod tile is arranged on the crank, the connecting rod tile is arranged on a connecting rod cover and an inner hole of the connecting rod, and the first cold air deflector is communicated with an air inlet channel A arranged on the crank and the crank, or the cooling holes positioned at the starting end are directly communicated with an air inlet channel B arranged on the connecting rod and the connecting rod tile;
the intelligent accurate temperature control system comprises an air cooler, wherein the air cooler is connected with an electromagnetic valve, the electromagnetic valve is communicated with an air inlet air passage A or an air inlet air passage B through an air inlet pipe, a temperature sensor is arranged at the lower part in a connecting rod and close to a connecting rod tile, the temperature sensor is connected with a PLC, and the PLC is respectively connected with the air cooler and the electromagnetic valve.
2. The intelligent temperature control device for the crank throw of the precision warm forging press according to claim 1, wherein the air inlet air path A comprises a cooling air inlet hole A axially formed in a crankshaft and a cooling air vent A radially formed in the crank throw, a rotary joint communicated with the cooling air inlet hole A is arranged at the end part of the crankshaft and connected with an air inlet pipe, the cooling air inlet hole A is communicated with the cooling air vent A, and the cooling air vent A is connected with a first cold air deflector arranged on the crank throw.
3. The intelligent temperature control device for the crank throw of the precise warm forging press according to claim 1, wherein the air inlet channel B comprises a cooling air inlet hole B, the cooling air inlet hole B is arranged on one side of the lower part in the connecting rod, a connector communicated with the cooling air inlet hole B is arranged on the connecting rod and connected with the air inlet pipe, a connecting rod bush ventilation hole communicated with the cooling air inlet hole B is radially arranged on the connecting rod bush, an annular connecting rod bush ventilation groove is arranged on the inner wall of the connecting rod bush, one end of the connecting rod bush ventilation groove is communicated with the connecting rod bush ventilation hole, the other end of the connecting rod bush ventilation groove is communicated with the crank throw ventilation hole arranged on the crank throw, and the crank throw ventilation hole is communicated with the cooling hole at the starting end.
4. The intelligent temperature control method for the crank throw of the precision warm forging press is characterized by comprising the intelligent temperature control device for the crank throw according to any one of claims 1-3, when the temperature rise is detected by a temperature sensor or reaches a set value, a PLC (programmable logic controller) controls an air cooler and an electromagnetic valve to start working and convey variable cold air, the temperature, the flow and the flow rate of the cold air can be intelligently regulated and controlled according to system set parameters, the cold air in an air inlet pipe enters a cooling hole through an air inlet channel A or an air inlet channel B to carry out rapid intelligent temperature control on the diameter of the crank throw, and when the temperature detected by the temperature sensor is restored to be within a normal set value range, the PLC controls the air cooler and the electromagnetic valve to stop working.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310071419.5A CN116274847A (en) | 2023-01-17 | 2023-01-17 | Intelligent temperature control device and method for crank throw of precision warm forging press |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310071419.5A CN116274847A (en) | 2023-01-17 | 2023-01-17 | Intelligent temperature control device and method for crank throw of precision warm forging press |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116274847A true CN116274847A (en) | 2023-06-23 |
Family
ID=86793190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310071419.5A Pending CN116274847A (en) | 2023-01-17 | 2023-01-17 | Intelligent temperature control device and method for crank throw of precision warm forging press |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116274847A (en) |
-
2023
- 2023-01-17 CN CN202310071419.5A patent/CN116274847A/en active Pending
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