CN108617041B

CN108617041B - Heating mechanism capable of being evacuated quickly

Info

Publication number: CN108617041B
Application number: CN201810696108.7A
Authority: CN
Inventors: 汤忠斌; 李玉龙; 索涛; 徐绯
Original assignee: Northwestern Polytechnical University
Current assignee: Northwestern Polytechnical University
Priority date: 2018-06-29
Filing date: 2018-06-29
Publication date: 2020-09-04
Anticipated expiration: 2038-06-29
Also published as: CN108617041A

Abstract

The invention discloses a heating mechanism capable of being quickly evacuated, which comprises a base, wherein a first support column is arranged on the base, an electromagnetic induction heating unit is arranged on one side of the support, a second support is arranged at one end of the base far away from the first support, the lower end of the second strut is connected with a first fixing block, the first fixing block is fixed with the base, the upper end of the second strut is provided with a second fixing block, the second fixed block is fixed with the second support column, an ejection device for rapidly cutting off the magnetic conduction loop to stop heating the parts is arranged between the second fixed block and the first fixed block, the base is also internally provided with a demagnetization unit and a temperature sensor which are respectively and electrically connected with a controller arranged outside the base, the controller is electrically connected with the electronic display screen, and the electronic display screen and the controller are both electrically connected with the power supply through the control switch. The invention has the advantages of high heating efficiency, low economic cost, convenient and safe use and strong practicability, and is worthy of popularization.

Description

Heating mechanism capable of being evacuated quickly

Technical Field

The invention belongs to the technical field of auxiliary equipment for mechanical assembly, and particularly relates to a heating mechanism capable of being evacuated quickly.

Background

In the machining industry, the shaft sleeves are assembled in a plurality of manners, but for interference fit assembly, generally, the ring sleeves are heated, the shaft sleeves and the shaft parts are assembled after being frozen, the shaft sleeves and the shaft parts can be assembled in an interference fit state at normal temperature, the ring sleeves are subjected to heat treatment in the manner of hot plates, steam, ovens and the like at present, but the temperature of the ring sleeves is not easy to control, the economic cost is high, the heating efficiency is low, and a common problem is that the temperature reaches a preset target, but the heat source cannot exit from the heating process timely and quickly, so that the temperature is overheated.

Disclosure of Invention

The object of the present invention is to provide a heating mechanism that can be evacuated quickly to solve all the problems mentioned above.

The technical scheme of the invention is as follows: the utility model provides a heating mechanism that can withdraw fast, includes the base, be provided with pillar one on the base, a pillar side is provided with electromagnetic induction heating unit, the one end that pillar one was kept away from to the base is provided with pillar two, fixed block one is connected to the lower extreme of pillar two, fixed block one is fixed with the base, the upper end of pillar two is provided with fixed block two, fixed block two is fixed with pillar two, be provided with the jettison device who is used for cutting off magnetic conduction return circuit stop heating spare part fast between fixed block two and the fixed block one, still be provided with demagnetization unit, temperature sensor in the base, demagnetization unit, temperature sensor are connected at the outside controller electricity of base with the setting respectively, the controller is connected with the electronic display screen electricity, electronic display screen, controller all are connected through control switch and power supply electricity.

Preferably, the electromagnetic induction heating unit comprises a yoke iron hinged to the top end of the pillar, a magnetic conduction interface is arranged in the middle of the lower portion of the yoke iron, a U-shaped iron is arranged in the base and comprises a first rod, a second rod and a third rod which are fixedly connected end to end in sequence, a winding group is arranged on the second rod, a joint of the winding group is electrically connected with the frequency converter, the frequency converter is electrically connected with the controller, and one end, far away from the winding group, of the third rod and the first rod is in contact with the magnetic conduction interface to form a magnetic conduction loop.

Preferably, the ejection device comprises a guide rod vertical to the second fixed block and the first fixed block, a rubber cushion block for buffering is arranged at the top end of the guide rod, the bottom end of the guide rod is fixed with the first fixing block, the guide rod is sleeved with an elastic piece, a sliding block is arranged above the elastic piece, the slide block is sleeved on the guide rod and extends leftwards through a guide groove arranged on the second support column, a hydraulic cylinder is horizontally fixed at the left end part of the sliding block, a screw rod is arranged at the right side of the guide rod, the upper end of the screw rod passes through a mounting hole I formed in the fixing block II and then is connected with an output shaft of the motor I through a coupler, the first motor is electrically connected with the controller, the lower end of the screw rod is sleeved with a bearing, the bearing is arranged in a second mounting hole formed in the first fixing block, the middle part of the screw rod is provided with a nut seat, and the nut seat is provided with a transverse moving device used for realizing contact or separation with the guide rod.

Preferably, the lateral shifting device comprises a guide rail fixed at the back of the nut seat, a pressing block connected with the guide rail in a sliding manner is arranged on the guide rail, a slot inserted in a matching manner with the guide rod is formed in the left side of the pressing block, a rack is arranged on the lower surface of the pressing block, the rack is meshed with a gear, the gear is meshed with an output shaft of a second motor, the second motor is electrically connected with the controller, the second motor is fixed with the mounting plate, and the mounting plate is fixed with the nut seat.

Preferably, the elastic member is a spring.

Compared with the prior art, the heating mechanism capable of being evacuated quickly provided by the invention has the advantages of easiness in temperature control, high heating efficiency, low economic cost, convenience and safety in use, strong practicability and high popularization value.

Drawings

FIG. 1 is a front view of the overall structure of the present invention;

fig. 2 is a right side view of the nut holder of the present invention and the partial structure of the attachment thereto.

Detailed Description

An embodiment of the present invention will be described in detail with reference to fig. 1 and 2, but it should be understood that the scope of the present invention is not limited by the embodiment.

As shown in fig. 1 and 2, an embodiment of the present invention provides a heating mechanism capable of being evacuated rapidly, which includes a base 1, wherein a first support column 2 is disposed on the base 1, an electromagnetic induction heating unit is disposed on a side edge of the first support column 2, a second support column 8 is disposed at an end of the base 1 away from the first support column 2, a first fixed block 16 is connected to a lower end of the second support column 8, the first fixed block 16 is fixed to the base 1, a second fixed block 9 is disposed at an upper end of the second support column 8, the second fixed block 9 is fixed to the second support column 8, an ejection device for rapidly cutting off a magnetic conduction loop and stopping heating components is disposed between the second fixed block 9 and the first fixed block 16, a demagnetization unit and a temperature sensor are further disposed in the base 1, the demagnetization unit and the temperature sensor are respectively electrically connected to a controller disposed outside the base 1, and the controller is electrically connected, the electronic display screen and the controller are electrically connected with the power supply through the control switch.

Further, the electromagnetic induction heating unit comprises a pillar I2 and a yoke 4 hinged to the top end, a magnetic conduction interface is arranged in the middle of the lower portion of the yoke 4, U-shaped iron is arranged in the base 1 and comprises a first rod 3, a second rod 17 and a third rod 6 which are sequentially and fixedly connected end to end, a winding group 18 is arranged on the second rod 17, a joint of the winding group 18 is electrically connected with a frequency converter, the frequency converter is electrically connected with the controller, and one end, far away from the winding group 18, of the third rod 6 and the first rod 3 is in contact with the magnetic conduction interface to form a magnetic conduction loop.

Further, the ejection device comprises a guide rod 10 perpendicular to a second fixed block 9 and a first fixed block 16, a rubber cushion block 22 for buffering is arranged at the top end of the guide rod 10, the bottom end of the guide rod 10 is fixed with the first fixed block 16, an elastic part 14 is sleeved on the guide rod 10, a sliding block 11 is arranged above the elastic part 14, the sliding block 11 is sleeved on the guide rod 10, the sliding block 11 extends leftwards through a guide groove formed in a second support column 8, a hydraulic cylinder 7 is horizontally fixed at the end part of the left side of the sliding block 11, a screw rod 15 is arranged on the right side of the guide rod 10, the upper end of the screw rod 15 penetrates through a first mounting hole formed in the second fixed block 9 and then is connected with an output shaft of a first motor 23 through a coupler, the first motor 23 is electrically connected with a controller, a bearing is sleeved at the lower end of the screw rod 15, and the bearing is arranged in, the middle part of the screw rod 15 is provided with a nut seat 13, and the nut seat 13 is provided with a transverse moving device for realizing the contact or separation with the guide rod 10.

Further, the transverse moving device comprises a guide rail 21 fixed behind the nut seat 13, a pressing block 12 connected with the guide rail 21 in a sliding mode is arranged on the guide rail 21, a slot matched and inserted with the guide rod 10 is formed in the left side of the pressing block 12, a rack 20 is arranged on the lower surface of the pressing block 12, the rack 20 is meshed with a gear 24, the gear 24 is meshed with an output shaft of a second motor 5, the second motor 5 is electrically connected with the controller, the second motor 5 is fixed with the mounting plate 19, and the mounting plate 19 is fixed with the nut seat 13.

Further, the elastic member 14 is a spring.

Wherein, the controller is the singlechip, and the model is STM8S103F 3.

The middle part of the yoke can be selectively sleeved with sleeves made of nonmetal heat-insulating materials with various specifications, and the sleeves are matched with ring sleeve parts to prevent the parts from being mixed.

When conductors such as the ring sleeve type parts and the like are placed on the yoke, the bearing cuts alternating magnetic lines of force to generate heat energy, so that the heating is carried out, and the heating temperature can be controlled through the electric cabinet.

The ejection device is used for rapidly withdrawing the yoke iron, so that the magnetic conduction loop is cut off.

When the device is used, a sleeve made of a proper non-metal heat-insulating material is sleeved in the middle of the yoke, the ring-sleeve type parts are sleeved on the sleeve made of the non-metal heat-insulating material, an external temperature sensor is attached to the ring-sleeve type parts, the free end of the yoke is slowly placed at the piston rod end of the hydraulic cylinder, a start button can be pressed after the temperature is set on the electronic display screen, at the moment, a controller firstly sends a control command to a motor II of the transverse moving device, the motor II rotates to drive a gear to rotate, a rack meshed with the gear starts to transversely move to drive the pressing block to move towards the direction of the guide rod along the guide rail, the motor II stops rotating until the guide rod is inserted into a slot at the front end of the pressing block and reaches a stroke limit position, the motor I starts to drive the screw rod to rotate, a nut seat on the screw rod moves downwards to drive the pressing block to move downwards until the pressing block sliding block presses the hydraulic cylinder to, after the yoke iron is contacted with the upper end surface of the U-shaped iron, a magnetic conductive loop is formed, heating is started, the controller sends a control command to stop the motor I, the temperature sensor detects a temperature signal in real time and transmits the temperature signal into the controller to be compared with a preset temperature lower threshold value, when the temperature detected by the temperature sensor is equal to the preset temperature lower threshold value, the controller sends the control command to the motor II of the transverse moving device, the motor II rotates to drive the gear to rotate reversely, the rack meshed with the gear starts to move transversely in the reverse direction to drive the pressing block to move along the guide rail in the reverse direction of the guide rod and to be away from the guide rod, the pressing force of the sliding block is lost, the sliding block is quickly jacked up by utilizing the reset force of the spring, the sliding block rises along the guide rod, the hydraulic cylinder on the sliding block synchronously, the yoke iron is jacked by the end of the piston rod, the quality problem caused by the ultrahigh temperature is avoided.

In conclusion, compared with the prior art, the heating mechanism capable of being evacuated quickly provided by the invention has the advantages of easiness in temperature control, high heating efficiency, low economic cost, convenience and safety in use, strong practicability and high popularization value.

The above disclosure is only for a few specific embodiments of the present invention, however, the present invention is not limited to the above embodiments, and any variations that can be made by those skilled in the art are intended to fall within the scope of the present invention.

Claims

1. The utility model provides a heating mechanism that can withdraw fast, includes base (1), its characterized in that, be provided with pillar one (2) on base (1), pillar one (2) side is provided with electromagnetic induction heating unit, the one end that pillar one (2) were kept away from in base (1) is provided with pillar two (8), fixed block one (16) is connected to the lower extreme of pillar two (8), fixed block one (16) are fixed with base (1), the upper end of pillar two (8) is provided with fixed block two (9), fixed block two (9) are fixed with pillar two (8), be provided with the jettison device that is used for cutting off magnetic conduction return circuit fast and stops heating spare part between fixed block two (9) and fixed block one (16), still be provided with demagnetization unit, temperature sensor in base (1), demagnetization unit, temperature sensor are connected with the controller electricity that sets up in base (1) outside respectively, the controller is electrically connected with the electronic display screen, and the electronic display screen and the controller are both electrically connected with the power supply through the control switch; the ejection device comprises a guide rod (10) which is vertical to a second fixed block (9) and a first fixed block (16), a rubber cushion block (22) for buffering is arranged at the top end of the guide rod (10), the bottom end of the guide rod (10) is fixed to the first fixed block (16), an elastic part (14) is sleeved on the guide rod (10), a sliding block (11) is arranged above the elastic part (14), the sliding block (11) is sleeved on the guide rod (10), the sliding block (11) extends leftwards through a guide groove formed in a second support column (8) and horizontally fixes a hydraulic cylinder (7) at the left end of the sliding block (11), a screw rod (15) is arranged on the right side of the guide rod (10), the upper end of the screw rod (15) passes through an output shaft of a first motor (23) and then passes through a first mounting hole formed in the second fixed block (9), and the first motor (23) is electrically connected with a controller, the lower end of the screw rod (15) is sleeved with a bearing, the bearing is arranged in a mounting hole II formed in the first fixing block (16), a nut seat (13) is arranged in the middle of the screw rod (15), and a transverse moving device used for achieving contact or separation with the guide rod (10) is arranged on the nut seat (13).

2. The heating mechanism capable of rapidly withdrawing as claimed in claim 1, wherein the electromagnetic induction heating unit comprises a first pillar (2) and a yoke (4) hinged to the top end, a magnetic conducting interface is arranged at the lower middle part of the yoke (4), a U-shaped iron is arranged in the base (1), the U-shaped iron comprises a first rod (3), a second rod (17) and a third rod (6) which are fixedly connected end to end, a winding set (18) is arranged on the second rod (17), a joint of the winding set (18) is electrically connected with a frequency converter, the frequency converter is electrically connected with a controller, and one end of the third rod (6) and one end of the first rod (3) far away from the winding set (18) are contacted with the magnetic conducting interface to form a magnetic conducting loop.

3. A heating mechanism capable of being evacuated rapidly as claimed in claim 1, wherein the lateral moving device comprises a guide rail (21) fixed to the rear face of the nut seat (13), a pressing block (12) slidably connected with the guide rail (21) is arranged on the guide rail (21), a slot matched and inserted with the guide rod (10) is formed in the left side of the pressing block (12), a rack (20) is arranged on the lower surface of the pressing block (12), the rack (20) is meshed with a gear (24), the gear (24) is meshed with an output shaft of a second motor (5), the second motor (5) is electrically connected with the controller, the second motor (5) is fixed with the mounting plate (19), and the mounting plate (19) is fixed with the nut seat (13).

4. A rapidly evacuable heating apparatus according to claim 1, wherein said elastic member (14) is a spring.