Temperature detection device suitable for roller centrifugal casting

Abstract

The invention relates to the field of centrifugal casting temperature measurement tools, and particularly discloses a temperature detection device suitable for roller centrifugal casting, and the temperature detection device is used for detecting the temperature of flowing metal liquid when the metal liquid in a high-temperature state is poured into a centrifugal casting machine. The temperature detection device comprises a thermocouple temperature detector; the driving piece is used for driving the movable thermocouple temperature detector to move; and the elastic supporting piece is connected with the driving piece and the thermocouple temperature detector and is at least used for providing buffering supporting force and buffering moving space for the thermocouple temperature detector in a preset direction. The centrifugal casting device has the effect of accurately detecting the temperature of the metal liquid during centrifugal casting.

Description

Technical Field

[0001] The present application relates to the field of centrifugal casting temperature measurement tooling, and in particular to a temperature detection device suitable for centrifugal casting of rollers. Background Art

[0002] At present, centrifugal casting uses a heater to melt the metal into liquid metal at high temperature. After the liquid metal is heated to a specified temperature, it is poured into a centrifugal casting machine to make the liquid metal perform centrifugal motion to fill the mold cavity. Due to the centrifugal motion, the liquid metal can fill the mold cavity well in the radial direction and form a free surface of the casting; it helps to remove gas and inclusions in the liquid metal; thereby improving the mechanical and physical properties of the casting.

[0003] The method for judging whether the temperature of the metal liquid is qualified is mainly to use a thermocouple temperature detector for detection. The staff stands at a position far away from the centrifugal casting machine and inserts the probe of the thermocouple temperature detector into the metal liquid in the heater to detect the temperature of the metal liquid. After the temperature of the metal liquid is qualified, the metal liquid is added to the centrifugal casting machine.

[0004] With respect to the above-mentioned related technologies, the inventor believes that there are the following defects: The thermocouple temperature detector detects the temperature of the metal liquid in the heater. After the metal liquid in the heater is poured into the centrifugal casting machine, the metal liquid contacts with the outside air for heat exchange after leaving the heater, and is easy to cool down. Therefore, the temperature of the metal liquid after entering the centrifugal casting machine does not match the detected temperature, and it is difficult to accurately detect the temperature of the metal liquid during centrifugal casting. However, the probe of the thermocouple temperature detector cannot be inserted into the centrifugal casting machine. When the probe of the thermocouple temperature detector is inserted into the molten metal poured out from the heater, the molten metal flows into the centrifugal casting machine under gravity. The molten metal is poured on the probe, and the probe is subjected to a large lateral force, which can easily damage the probe of the thermocouple metal detector and cause inaccurate subsequent detection results. Therefore, it is difficult to accurately detect the temperature of the molten metal during centrifugal casting. Summary of the invention

[0005] In order to improve the problem that it is difficult to accurately detect the temperature of molten metal during centrifugal casting, the present application provides a temperature detection device suitable for centrifugal casting of rolling mill rolls.

[0006] The present application provides a temperature detection device suitable for centrifugal casting of rollers, which adopts the following technical solution: A temperature detection device suitable for centrifugal casting of a rolling mill roll, the temperature detection device is used to detect the temperature of flowing molten metal when the molten metal in a high-temperature state is poured into a centrifugal casting machine; the temperature detection device comprises: a thermocouple temperature detector, which is used to be inserted into the flowing molten metal for temperature detection; a driving member, which is used to drive the moving thermocouple temperature detector to move so that the thermocouple temperature detector is inserted into the flowing molten metal and withdrawn from the flowing molten metal; an elastic support member, which is connected to the driving member and the thermocouple temperature detector, and is used to provide a buffer support force and a buffer movement space for the thermocouple temperature detector in at least a preset direction; wherein, when the thermocouple temperature detector is inserted into the flowing molten metal, the thermocouple temperature detector is subjected to an impact force away from the preset direction, and the thermocouple temperature detector moves in the buffer movement space.

[0007] By adopting the above technical solution, the temperature detection device is used to detect the process of pouring the high-temperature molten metal into the centrifugal casting machine. The molten metal flows into the centrifugal casting machine in the air. The state of the molten metal in the air is the flowing molten metal, and the air refers to the state before entering the centrifugal casting machine. The flowing molten metal is closest to the temperature entering the centrifugal casting machine. Therefore, by detecting the temperature of the flowing molten metal, the temperature of the molten metal during centrifugal casting can be more accurately detected, and it can be determined whether it meets the requirements of flow core casting.

[0008] By adopting the above-mentioned technical solution, when the thermocouple temperature detector moves into the flowing metal liquid, the flowing metal liquid falls and generates an impact force on the thermocouple temperature detector, causing the probe of the thermocouple temperature detector to be subjected to a lateral offset external force. The elastic support member is used to provide a buffer support force to the thermocouple temperature detector, so that the temperature detector can move slowly in a direction away from the preset direction under the action of the buffer support force, that is, move in the buffer space. Therefore, after the thermocouple temperature detector is impacted by the flowing metal liquid, the thermocouple temperature detector moves slowly under the action of the elastic support member, buffering the impact on the thermocouple temperature detector, preventing the probe of the thermocouple temperature detector from being subjected to a large lateral offset external force at one time, causing the probe of the thermocouple temperature detector to bend or be damaged, avoiding affecting the accuracy of the subsequent temperature detection by the thermocouple temperature detector, and better protecting the probe of the thermocouple temperature detector.

[0009] Optionally, the elastic support member includes: a supporting frame, a connecting structure and an elastic structure; the connecting structure is used to establish a connection between the thermocouple temperature detector and the supporting frame for the thermocouple temperature detector to rotate relative to the supporting frame; the elastic structure is used to provide a buffering support force and a buffering movement space for the thermocouple temperature detector along the preset direction between the supporting frame and the thermocouple temperature detector; when the thermocouple temperature detector is inserted into the flowing metal liquid, the thermocouple temperature detector is subjected to an impact force away from the preset direction, and the thermocouple temperature detector rotates in the buffering movement space.

[0010] By adopting the above-mentioned technical scheme, the connection structure is used to enable the thermocouple temperature detector to rotate relative to the supporting frame. Then, after the thermocouple temperature detector is impacted by the flowing metal liquid, it will rotate. The rotation can change the angle at which the metal liquid falls on the thermocouple temperature detector probe. Therefore, not only can the rotation be used to reduce the impact of the metal liquid on the thermocouple temperature detector probe in an instant, but the rotation can also be used to change the angle so that the probe is tilted downward after the metal liquid falls on the probe, thereby further reducing the external force exerted by the metal liquid on the probe and better protecting the thermocouple temperature detector.

[0011] Optionally, the connecting structure includes: a ball connecting component and a support plate fixing the ball connecting component to the supporting frame; the elastic structure includes: an elastic expansion bladder for forming an expansion control chamber and a pump body component for injecting and extracting a fluid medium from the expansion control chamber; the elastic expansion bladder is used to provide a buffering support force and a buffering movement space between the supporting frame and the thermocouple temperature detector when the thermocouple temperature detector rotates.

[0012] By adopting the above technical solution, the connection structure adopts a ball connection component, which can make the thermocouple temperature detector rotate more accurately along the flow direction of the flowing metal liquid after being affected by the flowing metal liquid. There is a possibility that its rotation direction is not directional, such as the probe is located at the position where the metal liquid just begins to fall, the metal liquid falls on the probe, the probe rotates, and the probe rotates to a position away from the position where the metal liquid just falls. The width of the metal liquid is smaller at the position where it just falls. As the metal liquid falls, the width increases. Therefore, the metal liquid falls on the inclined probe, and the probe continues to rotate along the direction of the falling metal liquid and rotates along the direction in which the metal liquid widens to both sides. Therefore, the thermocouple temperature detector has multiple angles of rotation. Therefore, the use of a ball connection component can better rotate the thermocouple temperature detector along the direction of the force, reduce the impact on the thermocouple temperature detector, and increase the protection effect.

[0013] By adopting the above-mentioned technical scheme, the elastic expansion bladder provides a buffering support force for the thermocouple temperature detector when it rotates between the carrier frame and the thermocouple temperature detector. Therefore, when the thermocouple temperature detector rotates, the elastic expansion bladder is compressed to receive a reaction buffering support force from the elastic expansion bladder. Therefore, in the process of the thermocouple temperature detector changing its rotation direction, the elastic expansion bladder can provide a buffering support force for the thermocouple temperature detector. In addition, the buffering support force generated by the compression of the elastic expansion bladder can be adjusted by injecting and withdrawing a fluid medium. The buffering support force of the elastic expansion bladder can be adjusted according to the speed at which the metal liquid is poured into the centrifugal casting machine, so as to better protect the probe of the thermocouple temperature detector.

[0014] Optionally, a mounting groove is formed in the support plate, and the ball connecting member is arranged in the mounting groove; the connecting structure also includes a connecting rod, one end of which is connected to the ball connecting member, and the other end is connected to the driving member and the thermocouple temperature detector; the elastic expansion bladder is arranged in the mounting groove; a socket is formed in the elastic expansion bladder and is inserted into the connecting rod, and when the fluid medium is injected into the expansion control chamber, the elastic expansion bladder expands until it is tightly pressed against the connecting rod.

[0015] By adopting the above technical solution, a plug hole is formed in the elastic expansion bag, and the elastic expansion bag is inserted into the connecting rod and pressed against the connecting rod. When the thermocouple temperature detector rotates, the connecting rod rotates, and the connecting rod will exert pressure on the elastic expansion bag, causing the elastic expansion bag to be compressed and deformed. Therefore, the elastic expansion bag can tightly wrap the connecting rod, and apply elastic buffering force to the connecting rod 360° without dead angles, so that the thermocouple temperature detector can better buffer the impact force under the action of the elastic buffering force when it is subjected to impact force.

[0016] Optionally, a plurality of flexible partitions are formed in the expansion control chamber, and the plurality of flexible partitions divide the expansion control chamber into a plurality of support chambers; the pump body component is used to simultaneously inject and extract the fluid medium into and from the plurality of support chambers; and the plurality of support chambers are arranged in a circular array around the circumference of the ball connection component.

[0017] By adopting the above-mentioned technical solution, a plurality of supporting cavities are formed in the expansion control chamber. Then, when the elastic expansion bladder is subjected to external force, the external force will specifically act on one of the supporting cavities. This supporting cavity is a closed space. Therefore, the supporting cavity is compressed to produce a buffering supporting force for the thermocouple temperature detector, thereby realizing the buffering supporting force on a plurality of supporting cavities, thereby avoiding the situation in which the elastic expansion bladder is easily deformed inconspicuously and it is difficult to ensure the buffering supporting force by using an entire expansion control chamber.

[0018] Optionally, the temperature detection device also includes: a protective member, a mounting frame and a cooling member; the mounting frame is connected to the ball connecting member, and the mounting frame is used to install the driving member, the protective member and the cooling member; the protective member is used to form a protective chamber for accommodating the thermocouple temperature detector probe and a tightening hole for the thermocouple temperature detector to penetrate; the cooling member is arranged below the protective member; the driving member is also used to drive the thermocouple temperature detector to move to the protective chamber.

[0019] By adopting the above technical solution, after the probe detects the temperature of the flowing metal liquid, the probe moves to the cooling part to cool down, so that the probe returns to the state of normal temperature, and then enters the protective chamber for storage, preventing external air or dust impurities from contacting the probe, causing the probe to form a stain outer layer, affecting the accuracy of temperature detection. The abutment hole on the protective chamber will abut against the probe, so during the movement of the probe, friction is generated between the inner wall of the abutment hole and the probe, which will cause the probe to be cleaned by the inner wall of the abutment hole, so that the probe enters the protective chamber in a clean state for storage.

[0020] Optionally, the protective member is also used to form a preheating chamber outside the protective chamber; the preheating chamber is used to perform heat exchange with the protective chamber to increase the temperature of the protective chamber; when the driving member is used to drive the thermocouple temperature detector to be inserted into the flowing metal liquid, the probe rod of the thermocouple temperature detector enters the flowing metal liquid after being preheated by the protective chamber.

[0021] By adopting the above technical solution, the probe of the thermocouple temperature detector is first preheated, and then the thermocouple temperature detector is allowed to enter the flowing metal liquid, thereby avoiding the temperature of the thermocouple temperature detector probe being too low, and allowing it to enter the flowing metal liquid at a suitable temperature, which can reduce thermal expansion and contraction to a certain extent.

[0022] Optionally, the driving member is also used to inject and extract protective gas from the protective chamber; when the thermocouple temperature detector performs temperature detection on the flowing metal liquid, the driving member extracts the protective gas from the protective chamber; when the thermocouple temperature detector stops performing temperature detection on the flowing metal liquid, the driving member injects protective gas into the protective chamber, and the probe of the thermocouple temperature detector is located in the protective chamber.

[0023] By adopting the above technical solution, the protective gas is injected into the protective chamber, and the protective gas contacts the probe, which can prevent the surface of the probe from being contaminated and moldy, thereby better protecting the probe.

[0024] Optionally, a plurality of cleaning protrusions are formed on the inner wall surface of the protection chamber; when the driving member draws the protective gas out of the protection chamber, the inner wall of the protection chamber is tightened against the probe of the thermocouple temperature detector so that the cleaning protrusions are pressed against the probe of the thermocouple temperature detector; when the thermocouple temperature detector stops detecting the temperature of the flowing metal liquid, the driving member moves the probe of the thermocouple temperature detector to the middle of the protection chamber, and then the driving member injects the protective gas into the protection chamber.

[0025] By adopting the above technical solution, the inner wall surface of the protective chamber is closely attached to the probe, so when the probe moves, the cleaning protrusion will contact the surface of the probe and generate friction and wiping, thereby cleaning the probe.

[0026] Optionally, the expansion control chamber is connected to the preheating chamber; when the elastic expansion bladder expands to be in tight contact with the connecting rod, the elastic expansion bladder forms a wrapping portion outside the mounting groove that wraps the support plate; the wrapping portion performs heat exchange with the ball connecting member through the support plate.

[0027] By adopting the above technical solution, the expansion control chamber is connected with the preheating chamber, so the temperature of the expansion control chamber will be higher. The elastic expansion bladder will expand to the outside of the mounting groove to form a wrapping portion, and the wrapping portion will perform heat exchange with the ball connecting component, thereby heating the ball connecting component. When not in use for a long time, the ball connecting component will be preheated while the probe is preheated, so the lubricating oil in the ball connecting component will have a better lubrication effect, making the thermocouple temperature detector less obstructed when rotating, and better utilizing the elastic support member to provide buffer support force for the thermocouple temperature detector.

[0028] In summary, the beneficial technical effects of this application are: By using a thermocouple temperature detector to detect the flowing molten metal, the temperature of the molten metal entering the centrifugal casting machine can be obtained more accurately, and an elastic buffer can be used to prevent the flowing molten metal from being directly poured onto the probe of the thermocouple temperature detector, causing the probe to be subjected to a large lateral force and damaged. This better protects the thermocouple temperature detector and more accurately detects the temperature of the molten metal entering the centrifugal casting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is an overall schematic diagram according to an embodiment of the present application; Figure 2 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the carrier and some surrounding parts; Figure 3It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the elastic structure and some surrounding parts; Figure 4 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the mounting frame and some surrounding parts; Figure 5 It is a schematic structural diagram of a part of the embodiment, mainly showing the structure of the driving wheel and some surrounding parts; Figure 6 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the mounting frame and the vertical rod; Figure 7 It is a structural diagram of a part of the embodiment, mainly showing Figure 2 The cross-sectional structure of Figure 8 It is a structural schematic diagram of a part of the embodiment, mainly showing the Figure 7 structure; Fig. 9 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the preheating chamber and the protection chamber; Fig.10 It is a structural schematic diagram of a part of the embodiment, mainly showing the Fig. 9 structure; Fig.11 It is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the first elastic membrane; Fig.12 It is a structural schematic diagram of a part of the embodiment, mainly showing the cross-sectional structure of the expansion control chamber; Fig.13 It is a structural schematic diagram of a part of the embodiment, mainly showing the Fig.12 structure.

[0030] Reference numerals: 1. Thermocouple temperature detector; 2. Carrying frame; 3. Connection structure; 31. Ball connection member; 32. Support plate; 321. Mounting groove; 33. Connection rod; 4. Elastic structure; 41. Elastic expansion bag; 411. Insertion hole; 412. Flexible partition; 413. Support cavity; 414. Wrapping part; 42. Pump body component; 421. First liquid pump; 422. Connecting pipe; 423. Electric push rod; 424. Piston plate; 425. Branch pipeline; 5. Protective element; 51. Protective chamber; 52. Preheating chamber; 53. First elastic membrane; 531. Contact hole; 532. First annular cavity; 533. Second annular cavity; 54. Second elastic membrane; 541. Abutment hole; 55. Vertical rod; 6. Mounting frame; 61. Slideway; 7. Cooling parts; 8. driving motor; 81. driving wheel; 82. driven wheel; 9. Air pump; 91. Second liquid pump. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-13 This application is described in further detail.

[0032] The embodiment of the present application discloses a temperature detection device suitable for centrifugal casting of a rolling roller.

[0033] A temperature detection device suitable for centrifugal casting of a rolling mill roll, the temperature detection device is used to detect the temperature of the flowing metal liquid when the metal liquid in a high temperature state is poured into a centrifugal casting machine. Specifically, the metal liquid in a high temperature state is poured into the centrifugal casting machine from a heating container, the metal is placed in the heating container and heated to become a metal in a liquid state, and then after the metal liquid leaves the heating container and before it reaches the centrifugal casting machine, the metal liquid flows downward in the air, and the metal liquid at this time is a flowing metal liquid. After the flowing metal liquid enters the centrifugal casting machine, centrifugal casting production is immediately carried out. Therefore, this scheme mainly detects the temperature of the flowing metal liquid, and can more accurately measure the temperature of the metal liquid when it enters the centrifugal casting machine, thereby making the centrifugal casting temperature measurement more accurate. Among them, the metal liquid is a liquid of aluminum alloy, and the metal liquid is passed through a centrifugal casting machine to obtain a die-cast aluminum alloy workpiece with a high strength, toughness and lightweight structure. The die-cast aluminum alloy workpiece with a high strength, toughness and lightweight structure originally prepared by die casting is obtained by centrifugal casting, and centrifugal casting mainly improves the quality of the product.

[0034] The temperature detection device comprises: a thermocouple temperature detector 1, a driving member and an elastic supporting member.

[0035] The thermocouple temperature detector 1 is used for inserting into the flowing metal liquid to detect the temperature.

[0036] The driving member is used to drive the thermocouple temperature detector 1 to move, so that the thermocouple temperature detector 1 is inserted into the flowing metal liquid, and is withdrawn from the flowing metal liquid. In a specific solution, the driving member drives the thermocouple temperature detector 1 to move up and down, so that the thermocouple temperature detector 1 enters the flowing metal liquid vertically on the ground to perform temperature detection.

[0037] The elastic support member is connected to the driving member and the thermocouple temperature detector 1, and is used to provide a buffer support force and a buffer movement space for the thermocouple temperature detector 1 at least in a preset direction. In a specific scheme, the elastic support member includes a movable frame and a spring, and the movable frame is used to install the driving member and the thermocouple temperature detector 1, and the spring applies an external force to the movable frame along the preset direction. When the thermocouple temperature detector 1 is inserted into the flowing metal liquid, the thermocouple temperature detector 1 deviates from the preset direction and is subjected to an impact force. The thermocouple temperature detector 1 moves away from the preset direction, and the spring is compressed, so that the spring applies a buffer support force. And the thermocouple temperature detector 1 moves in the buffer movement space, so after the thermocouple temperature detector 1 is impacted and moved, it is buffered by the spring, which better protects the probe.

[0038] By adopting the above-mentioned technical solution, when the thermocouple temperature detector 1 moves into the flowing metal liquid, the flowing metal liquid falls and generates an impact force on the thermocouple temperature detector 1, so that the probe of the thermocouple temperature detector 1 is subjected to a lateral offset external force. The elastic support member is used to provide a buffer support force to the thermocouple temperature detector 1, so that the temperature detector can move slowly in a direction away from the preset direction under the action of the buffer support force, that is, move in the buffer space. Therefore, after the thermocouple temperature detector 1 is impacted by the flowing metal liquid, the thermocouple temperature detector 1 moves slowly under the action of the elastic support member, buffering the impact on the thermocouple temperature detector 1, preventing the probe of the thermocouple temperature detector 1 from being subjected to a large lateral offset external force at one time, causing the probe of the thermocouple temperature detector 1 to bend or be damaged, avoiding affecting the accuracy of the subsequent temperature detection by the thermocouple temperature detector 1, and better protecting the probe of the thermocouple temperature detector 1.

[0039] Example 2

[0040] After the probe is inserted into the flowing liquid, the probe will be moved by the impact of the flowing liquid. The spring is used to slowly move the probe, thereby providing a buffer for the probe. However, after the probe moves, the spring is compressed to the limit and cannot be compressed any further. The probe will still be subject to a large lateral displacement force. This can only reduce the impact force that the probe receives instantly after being inserted into the flowing liquid, and reduce the instantaneous large lateral displacement force. However, when the flowing metal liquid flows at a faster speed, that is, when the speed at which it is introduced into the centrifugal casting machine is faster, the probe will still be subject to a large lateral displacement force even if it is buffered.

[0041] Therefore, the difference between this embodiment and embodiment 1 is that: The elastic support member includes: a carrier frame 2, a connecting structure 3 and an elastic structure 4. The connecting structure 3 is used to establish a connection between the thermocouple temperature detector 1 and the carrier frame 2 so that the thermocouple temperature detector 1 can rotate relative to the carrier frame 2. The connecting structure 3 specifically adopts a hinge, and the hinge is used to realize the rotation connection between the thermocouple temperature detector 1 and the carrier frame 2. The elastic structure 4 is used to provide a buffer support force and a buffer movement space for the thermocouple temperature detector 1 along a preset direction between the carrier frame 2 and the thermocouple temperature detector 1. The elastic structure 4 specifically adopts a torsion spring or other types of springs. When the elastic structure 4 adopts a torsion spring, one end of the torsion spring abuts against the carrier frame 2, and the other end is connected to the thermocouple temperature detector 1. When the thermocouple temperature detector 1 is inserted into the flowing metal liquid, the thermocouple temperature detector 1 is subjected to an impact force away from the preset direction, and the thermocouple temperature detector 1 rotates in the buffer movement space. Rotation can change the angle at which the metal liquid falls on the probe of the thermocouple temperature detector 1. Therefore, not only can the rotation be used to reduce the impact of the metal liquid on the probe of the thermocouple temperature detector 1 in an instant, but the rotation can also be used to change the angle so that the probe is tilted downward after the metal liquid falls on the probe, thereby further reducing the external force exerted by the metal liquid on the probe and better protecting the thermocouple temperature detector 1.

[0042] Example 3

[0043] When the molten metal is poured into the centrifugal casting machine, the width of the position where the molten metal just falls is small. As the molten metal falls, the width will increase, so the molten metal falls on the inclined probe. As the speed of the molten metal pouring increases, the difference in the flow width of the molten metal will become more obvious. Therefore, after the probe is inserted into the flowing molten metal, the probe is not only subjected to a directional rotational external force. The probe is not only subjected to the gravity of the flow of the molten metal and the direction of the flow of the molten metal to both sides that is different from the direction of the gravity of the flow of the molten metal. If the thermocouple temperature detector 1 can only be rotated by the hinge, there will be a situation where the thermocouple temperature detector 1 is subjected to an external force in a direction different from the rotational freedom provided by the hinge, and the probe is still prone to bending or being damaged by a large lateral force.

[0044] Therefore, the difference between this embodiment and embodiment 2 is that: The connection structure 3 includes: a ball connection member 31 and a support plate 32 for fixing the ball connection member 31 to the support frame 2. The elastic structure 4 includes: an elastic expansion bladder 41 for forming an expansion control chamber and a pump body member 42 for injecting and extracting a fluid medium into and out of the expansion control chamber. The fluid medium is air or liquid, preferably liquid such as water. The elastic expansion bladder 41 is used to provide a buffering support force and a buffering movement space for the thermocouple temperature detector 1 when it rotates between the support frame 2 and the thermocouple temperature detector 1. The elastic expansion bladder 41 acts as a buffer air cushion or a buffer bag. Therefore, the elastic expansion bladder 41 can provide a 360° buffer without dead angles for the thermocouple temperature detector 1.

[0045] By adopting the above-mentioned technical solution, the connection structure 3 adopts a ball connection component 31, which can make the thermocouple temperature detector 1 rotate more accurately in the opposite direction of the flow of the flowing metal liquid after being affected by the flowing metal liquid. The probe continues to rotate along the direction of the falling metal liquid and along the direction of the metal liquid widening to both sides. Therefore, the thermocouple temperature detector 1 has multiple angles of rotation. Therefore, the use of the ball connection component 31 can better make the thermocouple temperature detector 1 rotate along the direction of the force, reduce the impact on the thermocouple temperature detector 1, and increase the protection effect. The elastic expansion bladder 41 provides a buffering support force for the thermocouple temperature detector 1 when it rotates between the carrier frame 2 and the thermocouple temperature detector 1. Therefore, when the thermocouple temperature detector 1 rotates, the elastic expansion bladder 41 is compressed to receive a reaction buffering support force from the elastic expansion bladder 41. Therefore, in the process of the rotation direction of the thermocouple temperature detector 1 changing, the elastic expansion bladder 41 can provide a buffering support force for the thermocouple temperature detector 1. In addition, the buffering support force generated by the compression of the elastic expansion bladder 41 can be adjusted by injecting and withdrawing the fluid medium. The buffering support force of the elastic expansion bladder 41 can be adjusted according to the speed at which the metal liquid is poured into the centrifugal casting machine, so as to better protect the probe of the thermocouple temperature detector 1.

[0046] Specifically, a mounting groove 321 is formed in the support plate 32, and the mounting groove 321 is a circular groove body. The ball connection member 31 is arranged in the mounting groove 321. The ball connection member 31 is a ball connection structure, which will not be elaborated in detail. The connection structure 3 also includes a connecting rod 33, one end of the connecting rod 33 is connected to the ball connection member 31, and the other end is connected to the driving member and the thermocouple temperature detector 1. The elastic expansion bladder 41 is arranged in the mounting groove 321, and the elastic expansion bladder 41 forms a socket 411 that is inserted into the connecting rod 33. When the fluid medium is injected into the expansion control chamber, the elastic expansion bladder 41 expands to be tightly pressed against the connecting rod 33. When the thermocouple temperature detector 1 rotates, the connecting rod 33 rotates, and the connecting rod 33 will cause pressure on the elastic expansion bag 41, causing the elastic expansion bag 41 to be compressed and deformed. Therefore, the elastic expansion bag 41 can tightly wrap the connecting rod 33, and apply an elastic buffering force to the connecting rod 33360° without dead angles, so that when the thermocouple temperature detector 1 is subjected to impact force, it can better buffer the impact force under the action of the elastic buffering force.

[0047] More specifically, a plurality of flexible partitions 412 are formed in the expansion control chamber, and the plurality of flexible partitions 412 divide the expansion control chamber into a plurality of support chambers 413. The flexible partitions 412 are membrane bodies. The pump body member 42 is used to simultaneously inject and extract the fluid medium from the plurality of support chambers 413; the plurality of support chambers 413 are arranged in a circular array around the ball connection member 31. When the elastic expansion bladder 41 is subjected to an external force, the external force will specifically act on one of the support chambers 413, and this support chamber 413 is a closed space. Therefore, the support chamber 413 is compressed to generate a buffering support force for the thermocouple temperature detector 1, thereby implementing the buffering support force on the plurality of support chambers 413, thereby avoiding the situation where the elastic expansion bladder 41 is not easily deformed and it is difficult to ensure the buffering support force due to the use of an entire expansion control chamber.

[0048] The specific scheme about the pump body component 42 is: The pump body component 42 includes a first liquid pump 421, a connecting pipe 422, an electric push rod 423, a piston plate 424 and a plurality of branch pipes 425 connected to the support cavity 413. The first liquid pump 421 and the connecting pipe 422 are both arranged on the support frame 2, the first liquid pump 421 is connected to the outer circumference of the connecting pipe 422, the piston plate 424 is located in the connecting pipe 422, the output end of the electric push rod 423 is connected to the piston plate 424, and the piston plate 424 abuts against the inner wall of the connecting pipe 422. The first liquid pump 421 is connected to an external water source, and the first liquid pump 421 injects water into the connecting pipe 422, and injects water into the branch pipe 425 and the support cavity 413 through the connecting pipe 422. After the water injection is completed, the electric push rod 423 drives the piston plate 424 to move, so that the piston plate 424 moves to the position where the connecting pipe 422 is connected with multiple branch pipes 425, and the multiple branch pipes 425 are isolated and sealed from each other, and none of them are connected to the connecting pipe 422, thereby realizing that the support cavity 413 is a closed space, which better provides a buffer for the connecting rod 33.

[0049] Example 4

[0050] The temperature detection device also includes: a protective member 5, a mounting frame 6 and a cooling member 7. Among them, the connecting rod 33 is connected to the thermocouple temperature detector 1 through the mounting frame 6. The mounting frame 6 is connected to the ball connection member 31, and the mounting frame 6 is used to install the driving member, the protective member 5 and the cooling member 7. The protective member 5 is used to form a protective chamber 51 for accommodating the probe of the thermocouple temperature detector 1 and a tightening hole 541 for the thermocouple temperature detector 1 to penetrate. The cooling member 7 is arranged below the protective member 5; the driving member is also used to drive the thermocouple temperature detector 1 to move to the protective chamber 51. The cooling member 7 restores the probe to a temperature close to normal temperature before entering the protective chamber 51. The cooling member 7 adopts the existing technology and will not be explained. The driving member includes a driving motor 8, a driving wheel 81 and a driven wheel 82. The driving wheel 81 and the driven wheel 82 are both rotatably connected to the mounting frame 6. The driving motor 8 is used to drive the driving wheel 81 to rotate. The driving wheel 81 and the driven wheel 82 clamp the probe of the thermocouple temperature detector 1. The driving wheel 81 rotates to move the thermocouple temperature detector 1. Then the mounting frame 6 installs and sets the thermocouple temperature detector 1 through the driving motor 8 and the driving wheel 81.

[0051] The protective member 5 is also used to form a preheating chamber 52 outside the protective chamber 51; the preheating chamber 52 is used to perform heat exchange with the protective chamber 51 to heat up the protective chamber 51; when the driving member is used to drive the thermocouple temperature detector 1 to be inserted into the flowing metal liquid, the probe rod of the thermocouple temperature detector 1 enters the flowing metal liquid after being preheated by the protective chamber 51.

[0052] In a specific embodiment, the protective member 5 includes a first elastic membrane 53, a second elastic membrane 54 and a plurality of vertical rods 55. A plurality of slide grooves 61 are formed on the mounting frame 6, and the vertical rods 55 are slidably connected to the slide grooves 61. The first elastic member is wound around the plurality of vertical rods 55 and fixed to the vertical rods 55. The first elastic membrane 53 is fixed to both sides of the vertical rods 55, thereby forming a cavity, which is the preheating chamber 52. The first elastic membrane 53 encloses a chamber with openings at both ends, and the second elastic membrane 54 is placed in the chamber with openings at both ends and blocks the openings, so that the second elastic membrane 54 and the first elastic membrane 53 form a protective chamber 51. A tightening hole 541 is formed on the second elastic membrane 54. A contact hole 531 is formed on the first elastic membrane 53. The preheating chamber 52 formed by the first elastic membrane 53 is composed of a first annular chamber 532 and a second annular chamber 533. The cross-sectional dimension of the second annular chamber 533 is larger than the cross-sectional dimension of the first annular chamber 532, so that the second annular chamber 533 can make the contact hole 531 formed by the first elastic membrane 53 press against the probe, that is, the first elastic membrane 53 presses against the probe.

[0053] Specifically, the driving member is also used to inject and extract the protective gas from the protective chamber 51. When the thermocouple temperature detector 1 detects the temperature of the flowing metal liquid, the driving member extracts the protective gas from the protective chamber 51. When the thermocouple temperature detector 1 stops detecting the temperature of the flowing metal liquid, the driving member injects the protective gas into the protective chamber 51, and the probe of the thermocouple temperature detector 1 is located in the protective chamber 51. When the protective gas is injected into the protective chamber 51, the protective gas contacts the probe, which can prevent the surface of the probe from being contaminated and moldy, thereby better protecting the probe.

[0054] Specifically, a plurality of cleaning protrusions are formed on the inner wall surface of the protection chamber 51; when the driving member extracts the protective gas from the protection chamber 51, the inner wall of the protection chamber 51 is tightly bound on the probe of the thermocouple temperature detector 1, so that the cleaning protrusions are pressed against the probe of the thermocouple temperature detector 1, and at the same time, the vertical rod 55 slides in the slide groove 61, and the vertical rod 55 is pressed against the probe of the thermocouple temperature detector 1. When the thermocouple temperature detector 1 stops detecting the temperature of the flowing metal liquid, the driving member moves the probe of the thermocouple temperature detector 1 to the middle of the protection chamber 51, and then the driving member injects the protective gas into the protection chamber 51. After the probe moves to the middle of the protection chamber 51, the contact hole 531 and the pressing hole 541 will contact and clean the surface of the probe, thereby improving the degree of cleaning of the probe surface, and at the same time, the probe can be contacted with the cleaning protrusions. After further cleaning, the protective gas is injected into the protection chamber 51, thereby protecting the clean probe. The inner wall surface of the protection chamber 51 is close to the probe, so when the probe moves, the cleaning protrusion will contact the surface of the probe and produce friction and wiping, thereby cleaning the probe. In addition, the driver is also used to inject and extract the heat exchange medium into the preheating chamber 52, and the heat exchange medium is a high-temperature liquid or gas. When the driver extracts the protective gas from the protection chamber 51, the driver will also extract the heat exchange medium from the preheating chamber 52, so that the protection chamber 51 can shrink better, and after the protection chamber 51 shrinks, the vertical rod 55 in the preheating chamber 52 is close to the probe through the first elastic membrane 53, thereby improving the effect of cleaning the probe. Among them, the driver also includes an air pump 9, a gas tank and a second liquid pump 91, and the air pump 9 injects the gas in the gas tank into the protection chamber 51 through a hose, and the gas in the gas tank is a protective gas, preferably nitrogen. The first liquid pump 421 adds the fluid medium into the expansion control chamber through a hose, and the expansion control chamber is connected to the preheating chamber 52 through a hose, and can also add the fluid medium into the preheating chamber 52. The second liquid pump 91 adds the heat exchange medium into the preheating chamber 52 through a hose, and both the heat exchange medium and the fluid medium are high-temperature water.

[0055] Specifically, the expansion control chamber is connected to the preheating chamber 52, specifically through a hose. A control valve is provided on the hose connecting the expansion control chamber and the preheating chamber 52. When the elastic expansion bladder 41 expands to be in tight contact with the connecting rod 33, the elastic expansion bladder 41 forms a wrapping portion 414 wrapping the support plate 32 outside the mounting groove 321; the wrapping portion 414 performs heat exchange with the ball connecting member 31 through the support plate 32. By connecting the expansion control chamber with the preheating chamber 52, the temperature of the expansion control chamber will be higher. The elastic expansion bladder 41 will expand to the outside of the mounting groove 321 to form the wrapping portion 414, and the wrapping portion 414 performs heat exchange with the ball connecting member 31, thereby heating the ball connecting member 31. When not in use for a long time, the ball connection component 31 will be preheated while the probe is preheated, so the lubricating oil in the ball connection component 31 will have a better lubrication effect, so that the thermocouple temperature detector 1 will encounter less obstruction when rotating, and the elastic support will be better used to provide buffer support force for the thermocouple temperature detector 1.

[0056] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A temperature detection device suitable for centrifugal casting of rollers, characterized in that: The temperature detection device is used to detect the temperature of the flowing metal liquid when the high-temperature metal liquid is poured into the centrifugal casting machine; The temperature detection device comprises: Thermocouple temperature detector, used to insert into the flowing metal liquid for temperature detection; A driving member, used for driving the dynamic thermocouple temperature detector to move, so that the thermocouple temperature detector is inserted into the flowing metal liquid, and is withdrawn from the flowing metal liquid; An elastic support member connected to the driving member and the thermocouple temperature detector, and used to provide a buffer support force and a buffer movement space for the thermocouple temperature detector at least in a preset direction; When the thermocouple temperature detector is inserted into the flowing metal liquid, the thermocouple temperature detector is subjected to an impact force away from a preset direction, and the thermocouple temperature detector moves in the buffer movement space.

2. A temperature detection device suitable for centrifugal casting of rollers according to claim 1, characterized in that: The elastic support member comprises: a bearing frame, a connecting structure and an elastic structure; The connection structure is used to establish a connection between the thermocouple temperature detector and the carrier so that the thermocouple temperature detector can rotate relative to the carrier; The elastic structure is used to provide a buffer support force and a buffer movement space for the thermocouple temperature detector along the preset direction between the carrier and the thermocouple temperature detector; When the thermocouple temperature detector is inserted into the flowing metal liquid, the thermocouple temperature detector is subjected to an impact force away from a preset direction, and the thermocouple temperature detector rotates in the buffer movement space.

3. A temperature detection device suitable for centrifugal casting of rollers according to claim 2, characterized in that: The connection structure comprises: a ball connection member and a support plate for fixing the ball connection member to the carrier; The elastic structure includes: an elastic expansion bladder for forming an expansion control chamber and a pump body member for injecting and extracting a fluid medium from the expansion control chamber; The elastic expansion bag is used to provide a buffer support force and a buffer movement space between the support frame and the thermocouple temperature detector when the thermocouple temperature detector rotates.

4. A temperature detection device suitable for centrifugal casting of rollers according to claim 1, characterized in that: A mounting groove is formed in the support plate, and the ball connection member is arranged in the mounting groove; The connection structure further comprises a connecting rod, one end of which is connected to the ball connection member, and the other end of which is connected to the driving member and the thermocouple temperature detector; The elastic expansion bag is arranged in the installation groove; a plug hole is formed in the elastic expansion bag and inserted into the connecting rod. When the fluid medium is injected into the expansion control chamber, the elastic expansion bag expands until it is tightly pressed against the connecting rod.

5. A temperature detection device suitable for centrifugal casting of rollers according to claim 1, characterized in that: A plurality of flexible partitions are formed in the expansion control chamber, and the plurality of flexible partitions divide the expansion control chamber into a plurality of support chambers; The pump body member is used to simultaneously inject and extract the fluid medium from the plurality of support cavities; A plurality of the support cavities are arranged in an array around the circumference of the ball connection member.

6. A temperature detection device suitable for centrifugal casting of rollers according to claim 4 or 5, characterized in that: The temperature detection device also includes: a protective member, a mounting frame and a cooling member; The mounting frame is connected to the ball connection member, and the mounting frame is used to mount the driving member, the protective member and the cooling member; The protective member is used to form a protective chamber for accommodating the probe of the thermocouple temperature detector and a tightening hole for the thermocouple temperature detector to penetrate; The cooling element is arranged below the protective element; The driving member is also used to drive the thermocouple temperature detector to move to the protection chamber.

7. A temperature detection device suitable for centrifugal casting of rollers according to claim 6, characterized in that: The protection member is also used to form a preheating chamber outside the protection chamber; the preheating chamber is used to perform heat exchange with the protection chamber to increase the temperature of the protection chamber; When the driving member is used to drive the thermocouple temperature detector to be inserted into the flowing metal liquid, the probe rod of the thermocouple temperature detector enters the flowing metal liquid after being preheated by the protection chamber.

8. A temperature detection device suitable for centrifugal casting of rollers according to claim 6, characterized in that: The driving member is also used to inject and extract the protective gas from the protective chamber; When the thermocouple temperature detector detects the temperature of the flowing metal liquid, the driving member draws the protective gas out of the protective chamber; When the thermocouple temperature detector stops detecting the temperature of the flowing metal liquid, the driving member injects the protective gas into the protective chamber, and the probe of the thermocouple temperature detector is located in the protective chamber.

9. A temperature detection device suitable for centrifugal casting of rollers according to claim 8, characterized in that: A plurality of cleaning protrusions are formed on the inner wall surface of the protection chamber; when the driving member draws the protective gas out of the protection chamber, the inner wall of the protection chamber is tightly bound to the probe of the thermocouple temperature detector, so that the cleaning protrusions are pressed against the probe of the thermocouple temperature detector; When the thermocouple temperature detector stops detecting the temperature of the flowing metal liquid, the driving member moves the probe of the thermocouple temperature detector to the middle of the protection chamber, and then the driving member injects the protection gas into the protection chamber.

10. A temperature detection device suitable for centrifugal casting of rollers according to claim 6, characterized in that: The expansion control chamber is in communication with the preheating chamber; When the elastic expansion bag expands to be tightly pressed against the connecting rod, the elastic expansion bag forms a wrapping portion wrapping the support plate outside the mounting groove; The wrapping portion performs heat exchange with the ball connecting member through the support plate.

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