Stepped induction bearing heater

Abstract

The utility model belongs to the technical field of magnetic induction heating equipment, and provides a stepped induction bearing heater which comprises a base. The heating assembly comprises a stepped cover, a plurality of steps are sequentially arranged on the stepped cover from top to bottom, the diameters of the steps are sequentially increased from top to bottom, the bearing is placed at the top of one step, a winding frame is arranged in the stepped cover and is conical, and an electromagnetic coil is wound on the winding frame; the stepped cover and the winding frame are detachably connected to the base. The temperature sensor is detachably connected to the bearing; and the control assembly is arranged on the base, and the electromagnetic coil and the temperature sensor are electrically connected with the control assembly. According to the utility model, the electromagnetic coil can be protected, and a bearing with any size in a working range can be quickly placed at a heating station, so that the bearing can be quickly heated.

Description

Technical Field

[0001] The utility model belongs to the technical field of magnetic induction heating equipment, and particularly relates to a stepped induction bearing heater. Background Art

[0002] Bearing heaters are mainly used to heat various types of metal parts such as bearings, gears, bushings, shaft sleeves, diameter rings, pulleys, shrink rings, connectors, etc. The bearing heater expands it by heating to meet the requirements of interference fitting.

[0003] The working principle of the bearing heater is that when metal is in an alternating magnetic field, current will be generated due to electromagnetic induction. After current is generated inside the thicker metal, the current will form a spiral flow path inside the metal. In this way, the heat generated due to the current flow is absorbed by the metal itself, which will cause the metal to heat up quickly. The tower-type induction bearing heater has the advantages of being convenient to use and fast heating during the use process, but there are also some other problems during the use process. For example, in order to fix the height of the bearing during the heating process, it is necessary to limit the bearing to fix the height of the bearing and make the electromagnetic coil inside the bearing. This fixing process is relatively cumbersome; the electromagnetic coil is directly exposed outside. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a stepped induction bearing heater to solve the above problems, achieve the protection of the electromagnetic coil, and quickly place any sized bearing within the working range onto the heating station to quickly realize the purpose of bearing heating.

[0005] To achieve the above purpose, the utility model provides the following solution: A stepped induction bearing heater, comprising:

[0006] A base;

[0007] A heating component, the heating component includes a stepped cover, and several steps are sequentially arranged on the stepped cover from top to bottom. The diameters of several steps increase sequentially from top to bottom. A bearing is placed on the top of one of the steps. A winding frame is arranged inside the stepped cover. The winding frame is conical, and an electromagnetic coil is wound on the winding frame. The stepped cover and the winding frame are respectively detachably connected to the base;

[0008] A temperature sensor, the temperature sensor is detachably connected to the bearing;

[0009] A control component, the control component is arranged on the base, and the electromagnetic coil and the temperature sensor are respectively electrically connected to the control component.

[0010] Preferably, a magnet is provided at the bottom of the temperature sensor, and the temperature sensor is detachably connected to the bearing through the magnet.

[0011] Preferably, two sets of heat insulation pads are further included. The heat insulation pads include rubber strips, and a plurality of fixed magnets are fixedly connected to one side wall of the rubber strips. The plurality of fixed magnets are arranged corresponding to the side wall of the bearing.

[0012] Preferably, a heat insulation pad placement assembly is further provided on the base. The heat insulation pad placement assembly includes a distance measuring member and two sets of lifting frames fixedly connected to the base. A slider is vertically slidably connected in the lifting frame. A height adjusting member is arranged between the slider and the lifting frame. A horizontally fixed electric telescopic rod is connected to the slider. The extending direction of the electric telescopic rod is parallel to the diameter direction of the bearing. A placement seat is fixedly connected to the telescopic end of the electric telescopic rod. The heat insulation pad is placed in the placement seat.

[0013] Preferably, the distance measuring member includes a laser distance sensor fixedly connected to the bottom of the step cover. The laser distance sensor is used to measure the distance between the bearing and the laser distance sensor. The laser distance sensor is electrically connected to the control assembly.

[0014] Preferably, the height adjusting member includes a lead screw rotatably connected in the lifting frame. The slider is drivingly connected to the lead screw. A motor is fixedly connected in the lifting frame. One end of the lead screw is fixedly connected to the output shaft of the motor coaxially.

[0015] Compared with the prior art, the utility model has the following advantages and technical effects: The main function of the step cover is to enable bearings with different inner diameters to be quickly placed on the top of the corresponding diameter steps after being lowered from the top of the step cover through a plurality of steps uniformly arranged on its outer side, playing a role of supporting and limiting the bearings; the main function of the winding frame is to fix the electromagnetic coil; the main function of the temperature sensor is to measure the inner ring temperature of the bearing; the main function of the control assembly is to receive the bearing temperature value monitored by the temperature sensor and control the electromagnetic coil to heat the bearing. Overall, the utility model can protect the electromagnetic coil, and can quickly place each size of bearing within the working range to an appropriate heating station, quickly realizing the heating of the bearing. The heating process is energy-saving, environmentally friendly, noiseless, and the heating operation is simple. Description of the Drawings

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0017] Figure 1 Schematic diagram of the bearing heater of the present invention;

[0018] Figure 2 Schematic diagram of the stepped cover and winding frame of the present invention;

[0019] Figure 3 Schematic diagram of the lifting frame of the present invention;

[0020] Figure 4 Cross-sectional view of the lifting frame of the present invention;

[0021] Wherein, 1, base; 2, display screen; 3, operation button; 4, stepped cover; 5, first through hole; 6, step; 7, bearing; 8, temperature sensor; 9, lifting frame; 10, chute; 11, slider; 12, electric telescopic rod; 13, placement seat; 14, rubber strip; 15, fixed magnet; 16, winding frame; 17, second through hole; 18, electromagnetic coil; 19, lead screw; 20, motor; 21, perforation; 22, laser ranging sensor. Specific embodiments

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0023] To make the above objects, features and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0024] Referring to Figures 1 - 4 , the present invention provides a stepped induction bearing heater, comprising:

[0025] Base 1;

[0026] Heating assembly, the heating assembly includes a stepped cover 4, on which a number of steps 6 are arranged in sequence from top to bottom, the diameters of the number of steps 6 increase in sequence from top to bottom, a bearing 7 is placed on the top of one step 6, a winding frame 16 is arranged inside the stepped cover 4, the winding frame 16 is conical, an electromagnetic coil 18 is wound on the winding frame 16, and the stepped cover 4 and the winding frame 16 are respectively detachably connected to the base 1;

[0027] Temperature sensor 8, the temperature sensor 8 is detachably connected to the bearing 7;

[0028] Control assembly, the control assembly is arranged on the base 1, and the electromagnetic coil 18 and the temperature sensor 8 are respectively electrically connected to the control assembly.

[0029] The main function of the stepped cover 4 is that through a number of steps 6 evenly arranged on its outer side, after bearings 7 with different inner diameters are lowered from the top of the stepped cover 4, they can be quickly placed on the top of the steps 6 with corresponding diameters, playing a role of supporting and limiting the bearings 7; the main function of the electromagnetic coil 18 is to generate an alternating magnetic field around the bearing 7, and use the characteristic that metal generates eddy current in the alternating magnetic field to heat itself to quickly heat the bearing 7; the main function of the winding frame 16 is to fix the electromagnetic coil 18; by setting the stepped cover 4, the winding frame 16 and the base 1 to be detachably connected, it is convenient to maintain the electromagnetic coil 18; the main function of the temperature sensor 8 is to measure the inner ring temperature of the bearing 7; the main function of the control assembly is to receive the temperature value of the bearing 7 monitored by the temperature sensor 8 and control the electromagnetic coil 18 to heat the bearing 7. Overall, the utility model can protect the electromagnetic coil, and can quickly place any size of bearing within the working range to an appropriate heating station, quickly realize the heating of the bearing, and the heating process is energy-saving, environmentally friendly, noiseless, and the heating operation is simple.

[0030] Since magnetic induction heating is an existing technology, its heating circuit and specific heating principle will not be elaborated.

[0031] Further optimized solution, as Figure 1 and Figure 2 shown, a number of first through holes 5 are opened at the bottom of the stepped cover 4, a number of second through holes 17 are opened at the bottom of the winding frame 16, and the number of first through holes 5 and the number of second through holes 17 are arranged correspondingly.

[0032] A number of threaded holes (not shown in the figure) are opened on the base 1. After the winding frame 16 and the stepped cover 4 are sequentially placed on the base 1, bolts are passed through the first through holes 5 and the second through holes 17 and tightened in the threaded holes to realize the fixation between the winding frame 16, the stepped cover 4 and the base 1. When it is necessary to remove the stepped cover 4, a number of bolts are sequentially unscrewed to remove the stepped cover 4.

[0033] For a further optimized solution, a magnet is provided at the bottom of the temperature sensor 8, and the temperature sensor 8 is detachably connected to the bearing 7 through the magnet.

[0034] As Figure 1 shown, after the bearing 7 is placed on a step 6 of the stepped cover 4, the temperature sensor 8 can be quickly fixed to the inner top of the bearing 7 through the magnet at the bottom of the temperature sensor 8, so that the temperature sensor 8 can monitor the temperature of the inner ring during the heating process of the bearing 7.

[0035] For a further optimized solution, the control assembly includes a control circuit board (not shown in the figure) provided in the base 1, a display screen 2 embedded in the base 1, and a number of operation buttons 3. The display screen 2 and the number of operation buttons 3 are electrically connected to the control circuit board respectively.

[0036] The main function of the display screen 2 is to display information such as the temperature at which the bearing 7 is heated and the set heating time. The operator can control the heating temperature, heating time control, heating temperature holding control, temperature coefficient adjustment, heat preservation times setting, and temperature holding temperature difference value adjustment function by operating a number of operation buttons 3. At the same time, it has functions such as cooling protection, no-load protection, temperature non-change protection, over-temperature protection, and abnormal disconnection protection of the temperature sensor, making the use in the working process safer and more reliable, and effectively extending the service life of the heater.

[0037] For a further optimized solution, there are also two groups of heat insulation pads. The heat insulation pads include rubber strips 14, and a number of fixed magnets 15 are fixedly connected to one side wall of the rubber strips 14. The number of fixed magnets 15 is arranged corresponding to the side wall of the bearing 7.

[0038] After the bearing 7 is heated, the temperature of the bearing 7 is relatively high. To prevent scalding, the operator often needs to hold tools such as towels to pick up the bearing 7, and the operation is relatively cumbersome.

[0039] As Figure 1 shown, the two groups of rubber strips 14 are symmetrically magnetically attracted to both sides of the bearing 7 through the fixed magnets 15. When the operator picks up the bearing 7, he only needs to pinch the two rubber strips 14 with his hand, and utilize the heat insulation performance of the rubber to avoid scalding.

[0040] For a further optimized solution, a heat insulation pad placement assembly is also provided on the base 1. The heat insulation pad placement assembly includes a ranging member and two groups of lifting frames 9 fixedly connected to the base 1. A slider 11 is vertically slidably connected in the lifting frame 9. A height adjustment member is provided between the slider 11 and the lifting frame 9. An electric telescopic rod 12 is horizontally fixedly connected to the slider 11. The extending direction of the electric telescopic rod 12 is parallel to the diameter direction of the bearing 7. A placement seat 13 is fixedly connected to the telescopic end of the electric telescopic rod 12, and the heat insulation pad is placed in the placement seat 13.

[0041] For a further optimized solution, a sliding groove 10 is provided inside the lifting frame 9, and a slider 11 is slidably connected inside the sliding groove 10.

[0042] For a further optimized solution, a through hole 21 is formed on the slider 11, and an electric telescopic rod 12 is inserted through the through hole 21, and the electric telescopic rod 12 penetrates through the sliding groove 10.

[0043] For a further optimized solution, the distance measuring member includes a laser distance sensor 22 fixedly connected to the bottom of the stepped cover 4. The laser distance sensor 22 is used to measure the distance between the bearing 7 and the laser distance sensor 22, and the laser distance sensor 22 is electrically connected to the control component.

[0044] As Figure 1 and Figure 3 shown, the laser distance sensor 22 is fixedly connected to the bottom of the stepped cover 4 in an inclined manner, and the laser emitted by the laser distance sensor 22 irradiates the bottom of the inner ring of the bearing 7 along the outside of the stepped cover 4. Since the angle between the laser emitted by the laser distance sensor 22 and the horizontal plane remains unchanged, the height of the bearing 7 from the base 1 can be deduced after it is placed.

[0045] After the bearing 7 is placed on the stepped cover 4, the height of the bearing 7 from the base 1 is measured by the laser distance sensor 22. Then, the control circuit board controls the height of the slider 11 through the height adjusting member. The slider 11 drives the rubber strip 14 to move to the same height as the bearing 7 through the electric telescopic rod 12 and the placing seat 13. After the bearing 7 is heated, the control circuit board automatically controls the electric telescopic rod 12 to extend, so that the placing seat 13 drives the rubber strip 14 to approach the side wall of the bearing 7, and finally the rubber strip 14 is magnetically attracted to the side wall of the bearing 7 through the fixed magnet 15.

[0046] For a further optimized solution, the height adjusting member includes a lead screw 19 rotatably connected inside the lifting frame 9. The slider 11 is drivingly connected to the lead screw 19. A motor 20 is fixedly connected inside the lifting frame 9, and one end of the lead screw 19 is fixedly connected to the output shaft of the motor 20 coaxially.

[0047] As Figure 4 shown, two sets of lead screws 19 are provided at both ends of the slider 11, and the two sets of lead screws 19 are respectively driven by a motor 20. When it is necessary to lift the height of the slider 11, the control circuit board controls the two motors 20 to rotate. The rotation of the motor 20 drives the lead screw 19 to rotate. When the lead screw 19 rotates, it drives the slider 11 to move upward inside the sliding groove 10 through screw drive, so as to drive the electric telescopic rod 12 and the placing seat 13 in sequence to lift the rubber strip 14 to the same height as the bearing 7 on the stepped cover 4. When it is necessary to lower the height of the slider 11, it is only necessary to control the two motors 20 to rotate in reverse through the control circuit board.

[0048] The working process of this embodiment is as follows: Before use, the slider 11 is located at the bottom of the chute 10, and the electric telescopic rod 12 is in a retracted state.

[0049] When it is necessary to heat the bearing 7 to the target temperature, the user places the bearing 7 to be heated downwards from the top of the stepped cover 4 until the bearing 7 lands on the top of a step 6 to complete the placement of the bearing 7. Then, the temperature sensor 8 is placed on the inner side of the top of the bearing 7. After that, the user operates the relevant operation button 3 to make the laser range finder 22 measure the placement height of the bearing 7. The control circuit board controls the motor 20 to rotate according to the measurement result of the laser range finder 22, raises the slider 11 to an appropriate height, and the user immediately places the two rubber strips 14 on the placement seat 13. By pressing the operation button 3, the target temperature of heating is set, and the bearing 7 is quickly heated through the electromagnetic coil. After heating is completed, the control circuit board automatically controls the electric telescopic rod 12 to extend, moves the placement seat 13 towards the bearing 7, makes the rubber strips 14 approach the bearing 7, and finally magnetically attracts the rubber strips 14 to the bearing 7 through the fixed magnet 15. The user can remove the bearing 7 from the stepped cover 4 by pinching the two rubber strips 14 by hand.

[0050] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0051] The above-described embodiments are only descriptions of the preferred modes of the present invention, and do not limit the scope of the present invention. Without departing from the design spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A stepped induction bearing heater, characterized in that: include: Base (1); A heating component, the heating component comprising a stepped cover (4), the stepped cover (4) being provided with a plurality of steps (6) in sequence from top to bottom, the diameters of the plurality of steps (6) increasing in sequence from top to bottom, a bearing (7) being placed on the top of one of the steps (6), a winding frame (16) being provided in the stepped cover (4), the winding frame (16) being in a conical shape, an electromagnetic coil (18) being wound around the winding frame (16), the stepped cover (4) and the winding frame (16) being respectively detachably connected to the base (1); a temperature sensor (8), wherein the temperature sensor (8) is detachably connected to the bearing (7); A control component is arranged on the base (1), and the electromagnetic coil (18) and the temperature sensor (8) are respectively electrically connected to the control component.

2. A stepped induction bearing heater according to claim 1, characterized in that: A magnet is provided at the bottom of the temperature sensor (8), and the temperature sensor (8) is detachably connected to the bearing (7) via the magnet.

3. A stepped induction bearing heater according to claim 1, characterized in that: It also includes two groups of heat-insulating pads, each of which includes a rubber strip (14), a side wall of which is fixedly connected to a plurality of fixed magnets (15), and the plurality of fixed magnets (15) are arranged corresponding to the side wall of the bearing (7).

4. A stepped induction bearing heater according to claim 3, characterized in that: The base (1) is also provided with a heat insulation pad placement component, the heat insulation pad placement component comprising a distance measuring component and two groups of lifting frames (9) fixedly connected to the base (1), a slider (11) being vertically slidably connected inside the lifting frame (9), a height adjustment component being provided between the slider (11) and the lifting frame (9), an electric telescopic rod (12) being horizontally fixedly connected to the slider (11), the extension direction of the electric telescopic rod (12) being parallel to the diameter direction of the bearing (7), a placement seat (13) being fixedly connected to the telescopic end of the electric telescopic rod (12), and the heat insulation pad being placed inside the placement seat (13).

5. A stepped induction bearing heater according to claim 4, characterized in that: The distance measuring component comprises a laser distance measuring sensor (22) fixedly connected to the bottom of the step cover (4), the laser distance measuring sensor (22) being used to measure the distance between the bearing (7) and the laser distance measuring sensor (22), and the laser distance measuring sensor (22) being electrically connected to the control component.

6. A stepped induction bearing heater according to claim 4, characterized in that: The height adjustment member comprises a screw rod (19) rotatably connected to the lifting frame (9), the slider (11) is transmission-connected to the screw rod (19), a motor (20) is fixedly connected to the lifting frame (9), and one end of the screw rod (19) is coaxially fixedly connected to an output shaft of the motor (20).

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