CN201455617U

CN201455617U - Gear heater

Info

Publication number: CN201455617U
Application number: CN2009201189725U
Authority: CN
Inventors: 管忠林
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-27
Filing date: 2009-04-27
Publication date: 2010-05-12
Anticipated expiration: 2019-04-27

Abstract

The utility model discloses a gear heater. The gear heater comprises a induction heating device and a control circuit, wherein the induction heating device comprises a winding, a winding iron core wound by the winding, a fixed iron core which is fixedly arranged on the lower side surface of the winding iron core and a movable iron core which is arranged above the fixed iron core and of which side surface sticks to the upper side surface of the winding iron core; the winding iron core is arranged in an engine seat, the movable iron core is hinged with the top of the engine seat through a scalable connecting rod; and the control circuit provides high frequency alternating current for the winding. The utility model overcomes the defects of the existing gear heating method, is characterized by fast temperature rise and high thermal efficiency, can not generate thermal radiation to the surrounding environment, thus being beneficial to improve the environment and the fitness of working personnel; in addition, the calorification of the gear can be used for heating and the heating is very uniform, thus being beneficial to increase the assembly quality with the assembly shaft.

Description

A kind of gear heater

Technical field

The utility model relates to a kind of heater, particularly a kind of gear heater.

Background technology

In the assembling process of gear and gear shaft, because of both assembly relation belongs to interference fit, if adopt the mode of hard extruding, be easy to cause the damage of gear or gear shaft, assembly quality is difficult to be guaranteed, for this reason, in the middle of reality, for guaranteeing assembly quality, improve efficiency of assembling, the general employing preheats processing to gear.At present, traditional heating means have a variety of, but all there is certain defective in the whole bag of tricks, heat as the employing instrument that freezes, and can cause gear shifting quadrant texturing; The heating of employing stove fire, the gear two sides can be heated irregular; Employing oil bath heating can make gear pollute because of oil is unclean; Adopt oven heat, too time-consuming.

The utility model content

For overcoming the problems referred to above, the utility model provides a kind of gear heater, and it has, and energy consumption is low, high efficiency, gear are heated evenly, the characteristics of clean environment firendly, helps improving working environment and guarantees that the staff's is healthy.

For achieving the above object, the utility model is by the following technical solutions:

A kind of gear heater, it is characterized in that: form by induction heating apparatus and control circuit, wherein induction heating apparatus comprise coiling, by the wound core of coiling parcel, being connected is arranged on the fixed core of wound core downside and is arranged on directly over the fixed core and the side is formed with the moving iron core that the wound core upper side pastes mutually; Described wound core is arranged in the middle of the support, and moving iron core is hinged by telescopic connecting rod and support top; Described control circuit provides the alternating current of high frequency for coiling.

Above-mentioned control circuit also comprises a temperature controller.

Above-mentioned control circuit also comprises a time controller.

In use, on carry removable moving iron core and gear to be heated be put on the upper surface of fixed core, decontrol moving iron core compacting then and live gear, iron core, gear, fixed core three's end face is fully contacted, thereby form wound core → fixed core → gear → moving iron core → wound core heating circuit.At this, coiling forms the one-level coil, and gear to be heated forms secondary coil.When having alternating current to flow through in the coiling as the one-level coil, the alternating magnetic field of its generation will cut gear and make as the induced-current that produces alternation in the gear of secondary coil.

At work, when in coiling, leading to the alternating current of high frequency, will produce the induced field of alternation, the alternation magnetic force line cutting gear of induced field and at the inner electric current that produces alternation of gear, be eddy current, eddy current makes the molecule high speed random motion of gear, and molecule runs foul of each other, rubs and produces heat energy, make gear heating at a high speed voluntarily itself, thereby reach the purpose of gear heating.

At this, for realizing real-time control, be provided with temperature controller and time controller in the control circuit, promptly cut off circuit in case temperature or heat time heating time reach setting value, avoid temperature too high and damage gear surface hardness and inherent quality.

The utility model quick heating, thermal efficiency height, heat time heating time be traditional heating mode 1/4th less than, the flames of anger when heating simultaneously, no flue dust, no pernicious gas, surrounding environment is not produced heat radiation, help the healthy of enhancement of environment and staff, in addition, gear heats by the heating of self, and it is very even to be heated, and helps improving the assembly quality with assembled shaft.

Description of drawings

Fig. 1, perspective view of the present utility model;

Fig. 2, fundamental diagram of the present utility model.

The specific embodiment

As illustrated in fig. 1 and 2, a kind of gear heater, form by induction heating apparatus and control circuit, wherein induction heating apparatus comprise coiling 1, by the wound core 2 of coiling parcel, the fixed core 3 that is arranged on the wound core downside and be arranged on directly over the fixed core and the side is formed with the moving iron core 4 that wound core 2 upper sides paste mutually is connected.

Described wound core 2 is arranged in the middle of the support 5, and moving iron core 4 is hinged with support 5 tops by telescopic connecting rod 41, and at this, movably moving iron core 4 is pressed in gear 6 on the end face of fixed core 3, and the three is closely connected.Described control circuit provides the alternating current of high frequency for coiling.

As shown in Figure 2, in use, on carry and move moving iron core 4 gear 6 to be heated is put on the upper surface of fixed core 3, decontrol moving iron core 4 compactings then and live gear 6, iron core 4, gear 6, fixed core 3 threes' end face is fully contacted, thereby form wound core 2 → fixed core 3 → gear 6 → moving iron core 4 → wound core 2 heating circuits.At this, coiling 1 forms the one-level coil, and gear 6 to be heated forms secondary coil.When having alternating current to flow through in the coiling 1 as the one-level coil, the alternating magnetic field of its generation will cut gear 6 and make as the induced-current 61 that produces alternation in the gear of secondary coil.

At work, when in coiling 1, leading to the alternating current of high frequency, will produce the induced field of alternation, the alternation magnetic line of force 11 cutting gears of induced field and at the gear 6 inner electric currents 61 that produce alternations, be eddy current, eddy current makes the molecule high speed random motion of gear 6, and molecule runs foul of each other, rubs and produces heat energy, gear 6 itself is generated heat at a high speed voluntarily, thereby reach the purpose of gear 6 heating.

At this, for realizing real-time control, can be provided with temperature controller 7 and time controller 8 in the control circuit, promptly cut off circuit in case temperature or heat time heating time reach setting value, avoid temperature too high and damage gear surface hardness and inherent quality.

Claims

1. gear heater, it is characterized in that: form by induction heating apparatus and control circuit, wherein induction heating apparatus comprise coiling, by the wound core of coiling parcel, being connected is arranged on the fixed core of wound core downside and is arranged on directly over the fixed core and the side is formed with the moving iron core that the wound core upper side pastes mutually; Described wound core is arranged in the middle of the support, and moving iron core is hinged by telescopic connecting rod and support top; Described control circuit provides the alternating current of high frequency for coiling.

2. a kind of gear heater as claimed in claim 1, it is characterized in that: described control circuit also comprises a temperature controller.

3. a kind of gear heater as claimed in claim 1 is characterized in that: described control circuit also comprises a time controller.