CN215365912U

CN215365912U - Quenching inductor for hinged pin shaft of engineering machinery loader

Info

Publication number: CN215365912U
Application number: CN202122229877.6U
Authority: CN
Inventors: 杨明霞; 刘滨; 吴则蛟
Original assignee: Linyi Yelong Universal Mechanical Co ltd
Current assignee: Linyi Yelong Universal Mechanical Co ltd
Priority date: 2021-09-15
Filing date: 2021-09-15
Publication date: 2021-12-31
Anticipated expiration: 2031-09-15

Abstract

The utility model discloses a quenching inductor for a hinged pin shaft of an engineering machinery loader, and belongs to the technical field of medium-frequency quenching inductors. The induction heating coil mainly comprises an induction heating coil with an opening, a spraying cooling coil with an opening is arranged on the outer ring of the induction heating coil, spraying holes are formed in the spraying cooling coil, a heating pipe and a cooling pipe are respectively arranged at the opening parts of the induction heating coil and the spraying cooling coil, and an insulating plate is arranged between the heating pipe and the cooling pipe. The utility model has low cost, only needs to adopt the heating single coil and the spraying single coil, meets the requirement of a surface quenching area, simultaneously avoids the integral heating of the pin shaft by a processing mode of firstly induction heating and then spraying cooling, and greatly reduces the production cost. The utility model is mainly used for quenching the hinge pin shaft.

Description

Quenching inductor for hinged pin shaft of engineering machinery loader

Technical Field

The utility model belongs to the technical field of medium-frequency quenching inductors, and particularly relates to a quenching inductor for a hinge pin shaft of an engineering machinery loader.

Background

The hinge pin for the engineering machinery loader is a reducing pin, the maximum reducing difference of the pin is 27mm, and the distance between a surface quenching area and a large reducing end face is 7.5 +/-2.5 mm. The existing induction heaters are a single-coil common scanning surface quenching induction heater and a profiling integral induction heating quenching inductor. The former has low cost, but when the large reducing pin shaft is heated, the workpiece has the problem of heating and cooling at the same time, so that the cooling is sprayed to the reducing part and splashed, the part of the pin shaft with the length of about 20-25mm cannot be quenched, and finally the quenching area on the surface of the pin shaft cannot be guaranteed to reach the standard. Although the profiling integral induction heating quenching inductor can heat the large reducing pin shaft and ensure that the surface quenching area reaches the standard, the profiling induction heater needs to perform spray cooling after integrally heating the pin shaft, so that the manufacturing cost is increased, and the process requires larger power of an induction quenching machine tool, so that the production cost is increased.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: the defects of the prior art are overcome, the quenching inductor for the hinged pin shaft for the engineering machinery loader is low in manufacturing cost, only a heating single coil and a spraying single coil are adopted, the requirement of a surface quenching area is met, meanwhile, the whole heating of the pin shaft is avoided through a processing mode of firstly carrying out induction heating and then carrying out spraying cooling, and the production cost is greatly reduced.

The quenching inductor for the hinged pin shaft for the engineering machinery loader comprises an induction heating ring with an opening, a spraying cooling ring with an opening is arranged on the outer ring of the induction heating ring, spraying holes are formed in the spraying cooling ring, a heating pipe and a cooling pipe are respectively arranged at the opening parts of the induction heating ring and the spraying cooling ring, and an insulating plate is arranged between the heating pipe and the cooling pipe.

Preferably, quick-operation joint is equipped with respectively on heating pipe and the cooling tube, and heating pipe and cooling tube are equipped with the fixing base respectively, and the insulation board sets up between two fixing bases, and the cooling tube passes through fixing base and insulation board and heating pipe fixed connection, and the heating pipe is connected with the connecting plate that converges.

Preferably, the lifting device further comprises a pin shaft lifting mechanism, the pin shaft lifting mechanism comprises a support and a lifting frame, the lifting frame is connected with the support through a sliding block, a rack is arranged on the support, a gear is arranged on the lifting frame, the gear is connected with an output shaft of the motor, and the lifting frame is meshed with the rack through the gear.

Preferably, the crane comprises an upper frame and a lower frame which are fixedly connected, a lower tip is arranged on the lower frame, a fixed cylinder is arranged on the upper frame, a telescopic positioning rod is arranged in the fixed cylinder, the upper end of the positioning rod is connected with the fixed cylinder through an elastic device, an upper tip is arranged at the lower end of the positioning rod, and a handle matched with the positioning rod is hinged to the fixed cylinder.

Compared with the prior art, the utility model has the beneficial effects that:

1. the utility model adopts the heating single coil and the spraying single coil to carry out quenching on the small-diameter end of the pin shaft in a mode of firstly carrying out induction heating and then carrying out spraying cooling, the device has low manufacturing cost and convenient use, avoids the integral heating of the pin shaft, reduces the heating area and is suitable for a low-power induction quenching machine tool;

2. the pin shaft lifting mechanism is additionally arranged, the upper center and the lower center are matched with a center hole of a pin shaft to be processed, so that the pin shaft is clamped, the motor drives the gear, the lifting frame drives the pin shaft to move, the pin shaft penetrates through the induction heating ring and the spray cooling ring to be subjected to induction quenching, the installation is more reliable, and meanwhile, a necessary quenching area is achieved.

Drawings

FIG. 1 is a front view of the first embodiment;

FIG. 2 is a left side view of the first embodiment;

FIG. 3 is a schematic view of a bus bar connection plate;

FIG. 4 is a schematic structural diagram of the second embodiment;

fig. 5 is a schematic diagram of the matching of the induction heating coil and the pin shaft to be processed.

In the figure, 1, a bus connection plate; 2. heating a tube; 3. an insulating plate; 4. a cooling tube; 5. an induction heating coil; 6. spraying a cooling ring; 7. a fixed seat; 8. a quick coupling; 9. a support; 10. a slider; 11. a gear; 12. putting on a shelf; 13. an elastic device; 14. a handle; 15. a fixed cylinder; 16. positioning a rod; 17. an upper center; 18. a pin shaft; 19. a lower center; 20. and (5) putting down the shelf.

Detailed Description

The utility model will be further described with reference to the accompanying drawings in which:

the first embodiment is as follows: the quenching inductor for the hinged pin shaft for the engineering machinery loader comprises an induction heating ring 5 arranged at an opening, a spray cooling ring 6 arranged at the opening is arranged at the outer ring of the induction heating ring 5, spray holes are formed in the spray cooling ring 6, a heating pipe 2 and a cooling pipe 4 are respectively arranged at the opening parts of the induction heating ring 5 and the spray cooling ring 6, and an insulating plate 3 is arranged between the heating pipe 2 and the cooling pipe 4. The heating pipe 2 is communicated with the induction heating ring 5, and the cooling pipe 4 is communicated with the spray cooling ring 6.

Be equipped with quick-operation joint 8 on heating pipe 2 and the cooling tube 4 respectively, heating pipe 2 and cooling tube 4 are equipped with fixing base 7 respectively, and insulation board 3 sets up between two fixing bases 7, and cooling tube 4 passes through fixing base 7 and insulation board 3 and heating pipe 2 fixed connection, and heating pipe 2 is connected with the connecting plate 1 that converges.

The induction heating ring 5 and the spray cooling ring 6 both adopt a whole copper coil with an opening, and the two heating pipes 2 and the two cooling pipes 4 at the opening are both copper pipes. The heating pipe 2 and the cooling pipe 4 are respectively connected with a cooling water supply device through a quick connector 8, cooling water cools the induction heating ring 5 through the heating pipe 2, and the cooling pipe 4 cools the pin shaft 18 through a spraying hole in the spraying cooling ring 6.

Example two: the lifting mechanism of the pin shaft comprises a support 9 and a lifting frame, the lifting frame is connected with the support 9 through a sliding block 10, a rack is arranged on the support 9, a gear 11 is arranged on the lifting frame, the gear 11 is connected with an output shaft of a motor, and the lifting frame is meshed with the rack through the gear 11; the lifting frame comprises an upper frame 12 and a lower frame 20 which are fixedly connected, a lower tip 19 is arranged on the lower frame 20, a fixed cylinder 15 is arranged on the upper frame 12, a telescopic positioning rod 16 is arranged in the fixed cylinder 15, the upper end of the positioning rod 16 is connected with the fixed cylinder 15 through an elastic device 13, an upper tip 17 is arranged at the lower end of the positioning rod 16, and a handle 14 matched with the positioning rod 16 is hinged on the fixed cylinder 15; the rest is the same as the first embodiment.

When the induction heating type pin roll machining device works, a pin roll 18 to be machined penetrates through the induction heating ring 5 and is placed between the lower frame 20 and the upper frame 12, a center hole of the pin roll 18 is in contact with the lower center tip 19, the handle 14 swings downwards, the handle 14 drives the positioning rod 16 and the upper center tip 17 to move downwards, the upper center tip 17 is matched with the lower center tip 19, the pin roll 18 is clamped tightly, during induction heating, the induction heating ring 5 is started, the copper coil is electrified to generate an induction magnetic field, the induction heating ring 5 heats the pin roll 18 to a required temperature firstly, after heating is delayed, the motor drives the lifting frame to move downwards through the gear 11, the pin roll 18 penetrates through the induction heating ring 5 to be scanned and heated, after the pin roll 18 reaches a certain position, the spray cooling ring 6 is subjected to spray cooling, and through a quenching mode of firstly induction heating and then spray cooling, the surface quenching area of the pin roll 18 can be effectively controlled, and the induction heating type pin roll machining device is convenient to use. The descending position of the pin shaft 18 can be controlled by a delay relay or a travel switch arranged on the lifting frame.

Claims

1. The utility model provides an engineering machine tool is articulated round pin axle quenching inductor for loader which characterized in that: the cooling device comprises an induction heating ring (5) with an opening, wherein the outer ring of the induction heating ring (5) is provided with a spray cooling ring (6) with an opening, spray holes are formed in the spray cooling ring (6), the induction heating ring (5) and the spray cooling ring (6) are respectively provided with a heating pipe (2) and a cooling pipe (4) at the opening, and an insulating plate (3) is arranged between the heating pipe (2) and the cooling pipe (4).

2. The quenching inductor for the hinge pin shaft of the engineering machinery loader according to claim 1, characterized in that: be equipped with quick-operation joint (8) on heating pipe (2) and cooling tube (4) respectively, heating pipe (2) and cooling tube (4) are equipped with fixing base (7) respectively, and insulation board (3) set up between two fixing base (7), and cooling tube (4) are through fixing base (7) and insulation board (3) and heating pipe (2) fixed connection, heating pipe (2) with converge connecting plate (1) and be connected.

3. The quenching inductor for the hinge pin shaft of the engineering machinery loader as claimed in claim 2, wherein: still include round pin axle elevating system, round pin axle elevating system includes support (9) and crane, and the crane passes through slider (10) and is connected with support (9), is equipped with the rack on support (9), is equipped with gear (11) on the crane, and gear (11) and the output shaft of motor, the crane passes through gear (11) and rack toothing.

4. The quenching inductor for the hinge pin shaft of the engineering machinery loader as claimed in claim 3, wherein: the lifting frame comprises an upper frame (12) and a lower frame (20) which are fixedly connected, a lower tip (19) is arranged on the lower frame (20), a fixed cylinder (15) is arranged on the upper frame (12), a telescopic positioning rod (16) is arranged in the fixed cylinder (15), the upper end of the positioning rod (16) is connected with the fixed cylinder (15) through an elastic device (13), an upper tip (17) is arranged at the lower end of the positioning rod (16), and a handle (14) matched with the positioning rod (16) is hinged to the fixed cylinder (15).