CN202755021U

CN202755021U - Stepping automatic feed thermal treatment furnace

Info

Publication number: CN202755021U
Application number: CN 201220400954
Authority: CN
Inventors: 张文俊; 庄雷
Original assignee: Suzhou Huike Equipment Co Ltd
Current assignee: Suzhou Huike Equipment Co Ltd
Priority date: 2012-08-14
Filing date: 2012-08-14
Publication date: 2013-02-27
Anticipated expiration: 2022-08-14

Abstract

The utility model provides a stepping automatic feed thermal treatment furnace, and belongs to the technical field of thermal treatment furnaces. The stepping automatic feed thermal treatment furnace comprises a furnace frame, a furnace body, a machine frame, a pulling trolley lifting mechanism, a trolley guide rail frame, a pulling trolley, and a pulling trolley reciprocating moving mechanism. The furnace body is arranged on the furnace frame, and bottoms at two sides of a hearth are respectively fixed with a pair of workpiece bearing frames and are respectively provided with a group of jack-prop receding cavities. The machine frame corresponds to the bottom of the furnace body. The pulling trolley lifting mechanism is installed above the machine frame. The trolley guide rail frame is connected with the pulling trolley lifting mechanism. The pulling trolley is arranged on the trolley guide rail frame, a group of jack-props are fixed on positions at two sides of the pulling trolley and corresponding to the jack-prop receding cavities, each jack-prop extends into each jack-prop redesign hole, the upper portion of each group of the jack-props is fixed with a workpiece supporting and conveying mechanism, and each workpiece supporting and conveying mechanism corresponds between one pair of the workpiece bearing frames. The pulling trolley reciprocating moving mechanism is arranged on the machine frame and is connected with the pulling trolley. The stepping automatic feed thermal treatment furnace has the advantages of reflecting stepping displacement of workpieces, meeting stepping motion requirements of the workpieces, and being convenient to manufacture, install, use and maintain.

Description

Stepped start-stop system self-feeding heat treatment furnace

Technical field

The utility model belongs to the heat treatment furnace technical field, is specifically related to a kind of stepped start-stop system self-feeding heat treatment furnace

Background technology

As is known in the industry, be in the manufacturing processed of mechanical component (such as the chain rail), metallic substance (such as bar, tubing and forging) etc. of metal in material, usually need to be to its thermal treatment for quality assurance for example improves hardness.Generally, be used for heat treated workpiece and send into burner hearth from the opening for feed of an end of the length direction of heat treatment furnace, and within according to the time period of technique initialization, make workpiece towards capable the moving of discharge port of the other end of the length direction of heat treatment furnace by driving fortune mechanism, until from discharge port output, finish thermal treatment.

" pushing-bar type continuous vacuum tempering and annealing multi-purpose furnace " that Chinese invention patent publication number CN101333591A introduces is to utilize push rod to promote principle workpiece is passed towards the discharge port direction from the opening for feed of heat treatment furnace, until evict burner hearth from, because this patent application does not provide any synoptic diagram, therefore concrete structure can't be known; " the high-frequency annealing machine location feed mechanism " that CN201284351Y recommends adopts synchronous belt drive mechanism to drive the fortune workpiece, because Timing Belt travel mechanism is positioned at burner hearth, therefore not only damage easily, and troublesome maintenance; " quenching apparatus " that publication number CN101144112A discloses utilizes the forklift principle will finish the workpiece after the thermal treatment and shovels out and be transferred in the quenching bath from burner hearth, illustrated to be arranged on the roller that is used for ordering about workpiece movable in the burner hearth in the Figure of description of this patent scheme; " transmission device for quenching furnace of seamless steel pipe " that CN201614391U provides utilizes transfer roller to drive and send steel pipe.

The common ground of the patent that is not limited to exemplify above or patent application scheme all is to be arranged in the burner hearth being used for ordering about the capable feed mechanism that moves of workpiece, thereby work-ing life is short, the maintenance trouble is common shortcoming, and utility model patent Granted publication CN20181706U disclosed " feeding mechanism of vacuum annealing furnace " perhaps can avoid described shortcoming, but complicated integral structure is its shortcoming, and because this patent scheme does not provide such as the actuating unit that orders about the trailer wagon motion, structure annexation between feeding chassis and the trailer wagon, the enlightenment of the technology essential factors such as the guide rail in guide rail and the body of heater docks, thereby have obstacle for the deciphering of industry.

For above-mentioned prior art, the applicant has done useful design, and technical scheme described below produces under this background

Summary of the invention

Task of the present utility model be to provide a kind of help to make workpiece when the charging aperture of body of heater is introduced burner hearth and workpiece is heat-treated in burner hearth in a stepwise manner towards the discharging opening direction of body of heater move the heat treatment process of having used workpiece until draw from discharging opening, be conducive to ensure and Workpiece carrier in burner hearth between fiting effect and use the step-by-step movement movement requirement that meets workpiece and be of value to remarkable simplified structure and use and meet step-by-step movement self-feeding heat-treatment furnace easy to install.

Task of the present utility model is finished like this, and a kind of stepped start-stop system self-feeding heat treatment furnace comprises a grate; Be arranged on that a end on the grate has opening for feed and the other end has the body of heater that the discharge port corresponding with opening for feed and middle part constitute burner hearth with airborne, bottom in the both sides of the length direction of described burner hearth respectively is fixed with parallel and the pair of workpieces carrier that is used for the carrying workpiece that maintain each other spacing, and also each offers the one group of corresponding fore-set of position each other that runs through described body of heater and communicate with the external world chamber of stepping down with the interval state in the bottom of the both sides of the length direction of burner hearth, and each fore-set is stepped down the chamber corresponding between the described pair of workpieces carrier; One frame, this frame is corresponding to the bottom of the length direction of described body of heater; One trailer wagon hoisting appliance, this trailer wagon hoisting appliance is installed in the top of described frame; One vehicle guide frame, this vehicle guide frame is fixedly connected with described trailer wagon hoisting appliance; One trailer wagon, this trailer wagon is arranged on the described vehicle guide frame movably, each is fixed with quantity and the fore-set one group of fore-set that the quantity in chamber equates of stepping down with the interval state in the both sides of the length direction of this trailer wagon and in the position in the chamber of stepping down corresponding to described fore-set, each fore-set probes into described fore-set and steps down in the chamber, and be fixed with workpiece delivery mechanism on the top of each group fore-set, workpiece delivery mechanism is corresponding between the described pair of workpieces carrier; One is used for ordering about the trailer wagon reciprocating device that described trailer wagon moves back and forth, and this trailer wagon reciprocating device is arranged on the described frame and with trailer wagon and is connected.

In a specific embodiment of the present utility model, described pair of workpieces carrier respectively comprises carrying stand and a supporting plate, bottom and the described burner hearth of the length direction of carrying stand are fixed, supporting plate is fixed on the top of the length direction of carrying stand, and the supporting plate on the pair of workpieces carrier faces with each other face tilt and forms inverted splayed relation.

In another specific embodiment of the present utility model, on the outer wall of the bottom of described body of heater and in the position of the both sides in the chamber of stepping down corresponding to described fore-set, respectively be fixed with a slip shrouding guide rail, between pair of sliding shrouding guide rail, be equipped with slidably the slip shrouding back to the accent sealing of an end of described furnace chamber for chamber that described fore-set is stepped down, offer the fore-set sliding eye on the slip shrouding and in the position corresponding to described fore-set, fore-set and fore-set sliding eye are slidingly matched.

In another specific embodiment of the present utility model, described trailer wagon hoisting appliance comprises the dolly lifting motor, dolly lifter wheel reduction box, the dolly lifting screw, main shaft, main tie, a pair of driven shaft and transitional pull rod, the dolly lifting motor cooperates with the transmission of dolly lifter wheel reduction box, and be fixed on the end top of the length direction of described frame together with the dolly lifting motor by dolly lifter wheel reduction box, main shaft is arranged on frame rotationally towards the top of an end of dolly lifter wheel reduction box, at the two ends of this main shaft and respectively be fixed with an end of a main shaft pivoted arm in the position corresponding to the both sides of the length direction of described vehicle guide frame, and the other end pivot of main shaft pivoted arm is provided with a main shaft pivoted arm lifting Connection Block, main shaft pivoted arm lifting Connection Block is connected with the vehicle guide frame, and on main shaft, also be fixed with a main draft arm, one end of dolly lifting screw and described dolly lifter wheel reduction box are in transmission connection, the other end and described main draft arm are hinged, one end of main tie is connected with main draft arm, a pair of driven shaft is spaced apart and be arranged on rotationally the middle part of frame and be positioned at the top of frame, on each driven shaft and respectively be fixed with an end of a driven shaft pivoted arm in the position corresponding to the both sides of the length direction of vehicle guide frame, and the other end pivot of driven shaft pivoted arm is provided with a driven shaft pivoted arm lifting Connection Block, driven shaft pivoted arm lifting Connection Block is connected with the vehicle guide frame, and on each driven shaft, also be fixed with the driven shaft draft arm, described driven shaft draft arm on one of them driven shaft in one end of transitional pull rod and a pair of driven shaft is connected, and the driven shaft draft arm on another driven shaft in the other end of transitional pull rod and a pair of driven shaft is connected, the other end of described main tie is connected with described driven shaft draft arm on the adjacent driven shaft, described trailer wagon reciprocating device is arranged on the top of the other end of frame, described trailer wagon is fixed with a traction Connection Block on the outer wall at the position placed in the middle of an end of trailer wagon reciprocating device, this traction Connection Block is connected with the trailer wagon reciprocating device.

In another specific embodiment of the present utility model, described dolly lifting motor is the servomotor with rotating function, and the shape of described main draft arm is triangular in shape or fan-shaped.

Also have in the specific embodiment of the present utility model, each consists of at two upper lateral parts of the length direction of described vehicle guide frame a guide rail, each is provided with trolley idler wheels rotationally on one side of the length direction of described trailer wagon and the outer wall of opposite side, trolley idler wheels and described guide rail consist of rolling pair, be fixed with the fore-set supporting plate at trailer wagon towards a side of described body of heater and in the position corresponding to described fore-set, fore-set is fixed on the fore-set supporting plate.

More of the present utility model and in specific embodiment, described workpiece is consigned mechanism and is comprised workpiece upper frame and workpiece upper frame seat, the workpiece upper frame is fixed on the workpiece upper frame seat, and between described pair of workpieces carrier, workpiece upper frame seat is fixed on the top of described one group of fore-set.

In of the present utility model and then specific embodiment, the top of the length direction of described workpiece upper frame consists of a upper frame groove that is used for the support workpiece that is used for for the workpiece contact.

Of the present utility model again more and in specific embodiment, described trailer wagon reciprocating device comprises dolly traction electric machine, dolly traction gear reduction box and dolly traction screw, the dolly traction electric machine cooperates with the transmission of dolly traction gear reduction box, and be fixed on the top of the described the other end of described frame together with the dolly traction electric machine by dolly traction gear reduction box, one end of dolly traction screw and dolly traction gear reduction box are in transmission connection, and the other end is connected with described traction Connection Block.

In again of the present utility model and then specific embodiment, described dolly traction electric machine is the servomotor with rotating function.

The technical scheme that the utility model provides is made trailer wagon produce lifting and the reciprocal compound motion that replaces by the alternating motion of trailer wagon hoisting appliance and trailer wagon reciprocating device, thereby by driving workpiece delivery mechanism with the fixing fore-set of trailer wagon, and then driven the workpiece that is positioned on the Workpiece carrier by workpiece delivery mechanism mobile and until draw from discharge port, use the stepped start-stop system displacement that embodies workpiece in a stepwise manner in the heat treated while of burner hearth; Because workpiece is consigned mechanism corresponding between the pair of workpieces carrier in the burner hearth, thereby interference situations each other can not occur, be conducive to satisfy the step motion requirement to workpiece; Because one-piece construction is terse, therefore manufacturing, mounting, commissioning and maintenance are conveniently.

Description of drawings

Fig. 1 is example structure figure of the present utility model.

Fig. 2 is the sectional view of Fig. 1.

Fig. 3 is the side schematic view of Fig. 1.

Embodiment

For the auditor that the makes Patent Office especially public can be expressly understood technical spirit of the present utility model and beneficial effect more, the applicant general elaborates in the mode of embodiment below, but all be not restriction to the utility model scheme to the description of embodiment, any according to the utility model design done only for pro forma but not substantial equivalent transformation all should be considered as the technical solution of the utility model category.

See also Fig. 1 to Fig. 3, having provided one, to be used for material be that workpiece 9(Fig. 3 of metal shows) body of heater 2 of heat-treating, this body of heater 2 is placed on the grate 1 with airborne, and the airborne of saying here refers to body of heater 2 hangings in the state of terrace, namely and maintain distance between the terrace.Workpiece in the present embodiment 10 is roller class workpiece again, the chain rail wheel of roller class workpiece such as big machinery, but be not limited only to roller class workpiece.

By shown in Figure 2, one end of body of heater 2 is that the left end of location status illustrated in figures 1 and 2 has an opening for feed 21, and being right-hand member, the other end has a discharge port 22, central region constitutes the burner hearth 23 of body of heater 2, and charging and discharging mouth 21,22 position correspond to each other and all communicate with burner hearth 23 according to common practise.

In the both sides of the length direction of burner hearth 23 and the bottom that is positioned at burner hearth 23 respectively be fixed with pair of workpieces carrier 231, Fig. 1 and Fig. 3 clearly show that this two pairs of Workpiece carriers 231, because the structure of two pairs of Workpiece carriers 231 is identical, so the applicant only selects a pair of describing wherein.Pair of workpieces carrier 231 is not only parallel but also be separated with each other the distance of the diameter of the cross section that namely is slightly less than workpiece 9 that the diameter with the cross section of workpiece 9 adapts, each Workpiece carrier 231 comprises carrying stand 2311 and supporting plate 2312, the bottom of the bottom of carrying stand 2311 and the length direction of burner hearth 23 is fixed, and supporting plate 2312 is fixed with the top of the length direction of carrying stand 2311.By Fig. 1 and shown in Figure 3, the supporting plate 2312 on the pair of workpieces carrier 231 faces with each other face tilt and constitutes the splayed relation of inverted Chinese character.Again, be opened in the interval state in the both sides of the length direction of the bottom of burner hearth 23 and run through (perforation) to aforesaid body of heater 2 and each corresponding one group of fore-set of position that communicate with the external world and that quantity each other equates chamber 232 of stepping down, in the present embodiment, the step down quantity in chamber 232 of each group fore-set is three, but be not subject to the restriction of this quantity, for example for being suitable for the thermal treatment of and workpiece of heavy long to length, the corresponding prolongation of the length of body of heater 2 is so can correspondingly increase the step down quantity in chamber 232 of fore-set.

By shown in Figure 3, on the outer wall of the bottom of body of heater 2 and in the position of the both sides in the chamber 232 of stepping down corresponding to aforesaid fore-set, respectively be fixed with a slip shrouding guide rail 24, between pair of sliding shrouding guide rail 24, be equipped with slidably one and be used for the step down slip shrouding 24 back to the accent sealing of an end of aforesaid burner hearth 23 in chamber 232 of fore-set.Because as aforementioned, the fore-set chamber 232 of stepping down both communicated with furnace chamber 23, ran through again body of heater 2 and communicated with the external world, therefore in order to prevent that the heat in the burner hearth 23 from escaping and wasting energy from the fore-set chamber 232 of stepping down, thereby was sealed by slip shrouding 24.On slip shrouding 241 and in the position corresponding to the following fore-set that also will mention 61, offer fore-set sliding eye 2411.

Please continue to see Fig. 1 to Fig. 3, provided frame 3, although illustrated in the present embodiment a pair of of that frame 3 has a same structure and equal in length, but because both are connected to each other under the use state, therefore the applicant is referred to as frame 3, this frame 3 corresponding to the bottom of the length direction of body of heater 2, and is provided with a trailer wagon hoisting appliance 4 in frame 3 under the use state.

Preferably but not the trailer wagon hoisting appliance 4 that definitely is limited to comprises dolly lifting motor 41, dolly lifter wheel reduction box 42, dolly lifting screw 43, main shaft 44, main tie 45, a pair of driven shaft 46 and transitional pull rod 47, the servomotor of dolly lifting motor 41 for having the rotating function, and cooperate with 42 transmissions of dolly lifter wheel reduction box, be fixed on the lifting deceleration block 421 together with dolly lifting motor 41 by dolly lifter wheel reduction box 42, and lifting deceleration block 421 is fixed on the top of an end of aforementioned frame 3, namely is fixed on the top of the right-hand member of frame 3.Each is bearing in the two ends of main shaft 44 on the spindle bearing holder 443 rotationally, and spindle bearing holder 443 is screwed above frame 3, more precisely, spindle bearing holder 443 is fixed on frame 3 towards the top of an end of aforesaid dolly lifter wheel reduction box 42, at the two ends of main shaft 44 and in that each is fixed with an end of a main shaft pivoted arm 441 with the flat key fixed form corresponding to the position of the both sides of the length direction of the following vehicle guide frame 5 that also will describe, and the other end of main shaft pivoted arm 441 namely is hinged with a main shaft pivoted arm lifting Connection Block 4411 by the 412 pivot settings of Connection Block bearing pin, main shaft pivoted arm lifting Connection Block 4411 by screw with fix with the bottom of vehicle guide frame 5, and on main shaft 44, be fixed with the main draft arm 442 of a shape (present embodiment is selected trilateral, specifically by Fig. 2 signal) triangular in shape or fan-shaped by flat key.One end of dolly lifting screw 43 and dolly lifter wheel reduction box 42 are in transmission connection, the other end of dolly lifting screw 43 namely has a screw rod connecting joint 431 towards the end formation of aforesaid main draft arm 442, and this screw rod connecting joint 431 is connected with main draft arm 442 by screw rod connecting joint bearing pin 4311.One end of main tie 45 is that right-hand member illustrated in figures 1 and 2 has connected a main tie with the screw thread docked mode and adjusts joint 451, and this main tie is adjusted joint 451 and is connected with axis hole 4421 on being opened in aforesaid main draft arm 442 by bearing pin 4511.A pair of driven shaft 46 is bearing in the middle part of frame 3 separately and rotationally, is positioned at the top of frame 3, and specifically: the two ends of each driven shaft 46 are bearing on the driven shaft bearing support 463 rotationally, and driven shaft bearing support 463 is fixed on the top of frame 3.At the two ends of a pair of driven shaft 46 and in that each is fixed with an end of a driven shaft pivoted arm 461 with the flat key fixed form corresponding to the position of the both sides of the length direction of vehicle guide frame 5, and the other end of driven shaft pivoted arm 461 namely is hinged with a driven shaft pivoted arm lifting Connection Block 4611 by the 4612 pivot settings of lifting Connection Block bearing pin, driven shaft pivoted arm lifting Connection Block 4611 is fixed by the bottom of screw and vehicle guide frame 5, and respectively is fixed with a driven shaft draft arm 462 by flat key on a pair of driven shaft 461.Each has connected transitional pull rod adjustment joint 471 with the screw thread docked mode two ends of transitional pull rod 47, the driven shaft draft arm 462 that the transitional pull rod that is arranged in transitional pull rod 47 1 ends is adjusted on one of them driven shaft 46 of joint 471 and a pair of driven shaft 46 is articulated and connected, and the driven shaft draft arm 462 that the transitional pull rod that is arranged in transitional pull rod 47 the other ends is adjusted on another driven shaft 46 of joint 471 and a pair of driven shaft 46 is articulated and connected.To be left end illustrated in figures 1 and 2 be connected with driven shaft draft arm 462 on the adjacent driven shaft 46 the other end of above mentioned main tie 45, more particularly with a transitional pull rod 47 that is positioned at right-hand member on the transitional pull rod of right-hand member adjust joint 471 and be connected.

If increase the quantity of driven shaft 46, on the driven shaft 46 that increases, driven shaft pivoted arm 461 and driven shaft draft arm 462 need be set all so, and the quantity of corresponding increase transitional pull rod 47.In the present embodiment, because driven shaft 46 has a pair of i.e. two (Fig. 2 shows), therefore, transitional pull rod 47 only is one, yet if the quantity of driven shaft 46 is increased to three or four, the quantity of transitional pull rod 47 should have two or three mutually so, and the rest may be inferred.Therefore can't limit with the number change of driven shaft 46 essence of the disclosed technical scheme of the utility model.

Each formation of the both sides, top of the length direction of the vehicle guide frame 5 that the above has mentioned has a guide rail 51.Take location status at present illustrated in figures 1 and 2 as example, the two bottom sides of the right-hand member of vehicle guide frame 5 is fixedly connected with aforesaid main shaft pivoted arm lifting Connection Block 4411, and the two bottom sides of middle part and left end is fixedly connected with aforesaid driven shaft pivoted arm lifting Connection Block 4611.

The trailer wagon 6 of illustrating among the figure is essentially the belfry of a rectangular parallelepiped, respectively be fixed with a fore-set supporting plate 64 at this trailer wagon 6 towards two ends and the middle part of a side of body of heater 2, each is fixed with a fore-set 61 bottoms with vertical plumbness at the two ends of each fore-set supporting plate 64 and in the position in the chamber 232 of stepping down corresponding to aforesaid fore-set, the middle part of fore-set 61 slides up and down with fore-set sliding eye 2411 on the aforesaid slip shrouding 241 and cooperates, and the top of fore-set 61 is fixed with workpiece delivery mechanism 7.Each is provided with trolley idler wheels 63 rotationally on the outer wall of the both sides of the length direction of trailer wagon 6, and trolley idler wheels 63 consists of rolling pairs with aforesaid guide rail 51.Shown in figure, on the outer wall of the both sides of the length direction of trailer wagon 6, respectively have four trolley idler wheels 63, wherein two trolley idler wheels 63 are positioned at left end, and two then are positioned at right-hand member in addition, match with pair of guide rails 51 so have eight trolley idler wheels 63.But, if deliberately increase or reduce the quantity of trolley idler wheels 63, should be considered as so equivalence and substitute and still belong to the disclosed technology contents category of the utility model.Trailer wagon 6 on the outer wall of an end of the following trailer wagon reciprocating device 8 that will describe and be positioned at position placed in the middle be fixed with one the traction Connection Block 62.

Because aforesaid fore-set 61 has two groups, one group of one group of fore-set corresponding to a side of the spaced apart length direction bottom of being located at burner hearth 23 chamber 232 of stepping down wherein, and another group is corresponding to one group of fore-set of the opposite side of the spaced apart length direction bottom of being located at burner hearth 23 chamber 232 of stepping down, chamber 232 respectively is three in the present embodiment because the fore-set that is positioned at the both sides of burner hearth bottom is stepped down again, therefore fore-set 61 has two groups, and every group has three.

As aforementioned, because fore-set 61 has two groups, therefore also there be a pair of of same structure in workpiece delivery mechanism 7, following description is to consign mechanism 7 for a workpiece at the top that is arranged at one group of fore-set 61, this workpiece delivery mechanism 7 comprises workpiece upper frame 71 and workpiece upper frame seat 72, the top of workpiece upper frame seat 72 and one group of fore-set 61 is fixed, and workpiece upper frame 71 is fixed on the top of the length direction of workpiece upper frame seat 72.Preferably, one group of positioning boss 721 is fixed at interval, top at the length direction of workpiece upper frame seat 72, and at workpiece upper frame 71 towards a side of workpiece upper frame seat 72 and consisting of the cavity 712 that has the size that equates with positioning boss 721 quantity to adapt corresponding to the position of positioning boss 721, by positioning boss 721 embedding cavitys 712 workpiece upper frame 71 is positioned on the workpiece upper frame seat 72 reliably.Certainly workpiece upper frame 71 also can be fixing by the top (upper surface) of welding or other similar fashion and workpiece upper frame seat 72.Workpiece upper frame 71 is corresponding between the aforesaid pair of workpieces carrier 231, and in order to ensure that workpiece upper frame 71 is able to show with workpiece 9(Fig. 3 ideally) match, therefore consist of on the top of the length direction of workpiece upper frame 71 a upper frame groove 711 is arranged, the shape of cross section of upper frame groove 711 be the V font and semicircular any one, perhaps other similar shape needs only the requirement that can satisfy with workpiece 9 good contacts and support workpiece 9.

Above mentioned trailer wagon reciprocating device 8 preferably but not the structure that definitely is limited to is as follows: comprise dolly traction electric machine 81, dolly traction gear reduction box 82 and dolly traction screw 83, the motor of dolly traction electric machine 81 for having the rotating function, connect with 82 transmissions of dolly traction gear reduction box, and be fixed on the other end of aforesaid frame 3 by dolly traction gear reduction box 82 together with dolly traction electric machine 81, namely be fixed on the left end top of frame 3.Specifically: dolly traction gear reduction box 82 is fixed on the traction gear deceleration block 821, and traction gear deceleration block 821 is fixed by bolts on the frame 3.One end of dolly traction screw 83 cooperates with 82 transmissions of dolly traction gear reduction box, and the other end is connected with the traction Connection Block 62 of aforesaid trailer wagon 6 by swivel pin 831.

Please still see Fig. 1 and Fig. 3, the applicant describes principle of work of the present utility model, await heat treated workpiece 9 on the opening for feed 21 of body of heater 2 is introduced respectively two pairs of Workpiece carriers 231 in the burner hearth 23, that is to say on every a pair of Workpiece carrier 231 to carry workpiece 9.

At first, in the PLC(programmable controller) control under, by 8 work of trailer wagon reciprocator, specifically: 81 work of dolly traction electric machine, drive dolly traction gear reduction box 82, nut by the gear that cooperates with 83 transmissions of dolly traction screw in the dolly traction gear reduction box 82 drives dolly traction screw 83 to left dislocation, because dolly traction screw 83 is connected with traction Connection Block 62 on the trailer wagon 6 by swivel pin 831, so make trolley idler wheels 63 on the trailer wagon 6 follow guide rail 51 on the vehicle guide frame 5 to left dislocation.In this process, be fixed in two groups of fore-sets 61 on the fore-set supporting plate 64 of trailer wagon 6 also to left dislocation, drive workpiece delivery mechanisms 7 by fore-set 61 and step down the interval range in chamber 232 to left dislocation at fore-set, thereby the workpiece upper frame seat 72 of workpiece delivery mechanism 7 is moved to the left together with workpiece upper frame 71, thereby has finished the first step action that trailer wagon 6 is moved to the left.

Then, same under the control of PLC, start dolly lifting motor 41 work of trailer wagon hoisting appliance 4, driven the pinion(gear) 422 of dolly lifter wheel reduction box 42 by dolly lifting motor 41, by the master wheel 423 of pinion(gear) 422 drives with its engagement, master wheel nut 4231 by master wheel 423 drives the dolly lifting screw 43 that is mated, make dolly lifting screw 43 towards the direction displacement of dolly lifter wheel reduction box 42, drive main draft arm 442 and rotate an angle to counter clockwise direction.Because main draft arm 442 is fixed on the main shaft 44, therefore drive main shaft 44 by main draft arm 442 and rotate an angle to counter clockwise direction, owing to being fixed on the main shaft 44 and with vehicle guide frame 5, a pair of main shaft pivoted arm 441 is fixedly connected with again, therefore drive a pair of main shaft pivoted arm 441 by main shaft 44 and rotate an angle to counter clockwise direction, this moment a pair of main shaft pivoted arm 441 an end that is connected with vehicle guide frame 5 be upturned (lifting), simultaneously under the effect of main tie 45 and transitional pull rod 47, make a pair of driven shaft 46 also do the motion identical with main shaft 44, driven shaft pivoted arm 461 on a pair of driven shaft 46 and driven shaft draft arm 462 are also done the motion identical with main shaft pivoted arm 441 and main shaft draft arm 442, thereby vehicle guide frame 5 is upwards lifted.By fore-set 61 workpiece is consigned mechanism 7 this moment and upwards rise, until the upper frame groove 71 on the workpiece upper frame 71 of workpiece delivery mechanism 7 contacts and holds up workpiece 9, finish the first step action that trailer wagon 6 rises.

Follow again, dolly traction electric machine 81 reverse operations of trailer wagon reciprocating device 8, the process of describing in the above by the applicant and make trailer wagon 6 towards the direction on the right side at guide rail 51 top offsets, because the workpiece 9 of this moment has been supported on the workpiece upper frame 71, therefore in trailer wagon 6 displacement to the right, workpiece 9 is finished the second step action that trailer wagon 6 moves right with the displacement to the right of workpiece delivery mechanism 7.And then follow again, dolly lifting motor 41 reverse operations of trailer wagon hoisting appliance 4, by the opposite mode of the aforesaid action of applicant until vehicle guide frame 5 is descended, the workpiece 9 that is before headed on by workpiece upper frame 71 is drop on the Workpiece carrier 231, finish the second step action that trailer wagon 6 descends, workpiece 9 has namely moved a distance to discharge port 22 to the right.

By above-mentioned action alternately embody in a stepwise manner until make workpiece 9 from opening for feed 21 behind burner hearth 23, drawing from the plate 221 that connects material of discharge port 22, finish the heat treatment process to workpiece 9.

In sum, the technical scheme that the utility model provides has remedied the shortcoming in the prior art, has finished the invention task, has embodied objectively the applicant at the technique effect described in the technique effect hurdle, thereby to can yet be regarded as be a ultimate attainment scheme

Claims

1. A kind of stepped start-stop system self-feeding heat treatment furnace is characterized in that comprising a grate (1); Be arranged on that a end on the grate (1) has opening for feed (21) and the other end has the body of heater (2) that the discharge port (22) corresponding with opening for feed (21) and middle part constitute burner hearth (23) with airborne, bottom in the both sides of the length direction of described burner hearth (23) respectively is fixed with parallel and the pair of workpieces carrier (231) that is used for the carrying workpiece that maintain each other spacing, and also each offers the one group of corresponding fore-set of position each other that runs through described body of heater (2) and communicate with the external world chamber (232) of stepping down with the interval state in the bottom of the both sides of the length direction of burner hearth (23), and each fore-set is stepped down chamber (232) corresponding between the described pair of workpieces carrier (231); One frame (3), this frame (3) is corresponding to the bottom of the length direction of described body of heater (2); One trailer wagon hoisting appliance (4), this trailer wagon hoisting appliance (4) is installed in the top of described frame (3); One vehicle guide frame (5), this vehicle guide frame (5) is fixedly connected with described trailer wagon hoisting appliance (4); One trailer wagon (6), this trailer wagon (6) is arranged on the described vehicle guide frame (5) movably, each is fixed with quantity and the fore-set one group of fore-set (61) that the quantity in chamber (232) equates of stepping down with the interval state in the both sides of the length direction of this trailer wagon (6) and in the position in the chamber (232) of stepping down corresponding to described fore-set, each fore-set (61) probes into described fore-set and steps down in the chamber (232), and be fixed with workpiece delivery mechanism (7) on the top of each group fore-set (61), workpiece delivery mechanism (7) is corresponding between the described pair of workpieces carrier (131); One is used for ordering about the trailer wagon reciprocating device (8) that described trailer wagon (6) moves back and forth, and this trailer wagon reciprocating device (8) is arranged on described frame (3) and upward and with trailer wagon (6) is connected.

2. Stepped start-stop system self-feeding heat treatment furnace according to claim 1, it is characterized in that described pair of workpieces carrier (231) respectively comprises carrying stand (2311) and a supporting plate (2312), the bottom of the length direction of carrying stand (2311) and described burner hearth (23) are fixing, supporting plate (2312) is fixed on the top of the length direction of carrying stand (2311), and the supporting plate (2312) on the pair of workpieces carrier (231) faces with each other face tilt and forms inverted splayed relation.

3. Stepped start-stop system self-feeding heat treatment furnace according to claim 1, it is characterized in that on the outer wall of the bottom of described body of heater (2) and respectively be fixed with a slip shrouding guide rail (24) in the position of the both sides in the chamber (232) of stepping down corresponding to described fore-set, between pair of sliding shrouding guide rail (24), be equipped with slidably the slip shrouding (241) back to the accent sealing of an end of described furnace chamber (23) for chamber (232) that described fore-set is stepped down, upward and in the position corresponding to described fore-set (61) offer fore-set sliding eye (2411) at slip shrouding (241), fore-set (61) is slidingly matched with fore-set sliding eye (2411).

4. Stepped start-stop system self-feeding heat treatment furnace according to claim 1, it is characterized in that described trailer wagon hoisting appliance (4) comprises dolly lifting motor (41), dolly lifter wheel reduction box (42), dolly lifting screw (43), main shaft (44), main tie (45), a pair of driven shaft (46) and transitional pull rod (47), dolly lifting motor (41) cooperates with dolly lifter wheel reduction box (42) transmission, and be fixed on the end top of the length direction of described frame (3) together with dolly lifting motor (41) by dolly lifter wheel reduction box (42), main shaft (44) is arranged on frame (3) rotationally towards the top of an end of dolly lifter wheel reduction box (42), at the two ends of this main shaft (44) and respectively be fixed with an end of a main shaft pivoted arm (441) in the position corresponding to the both sides of the length direction of described vehicle guide frame (5), and the other end pivot of main shaft pivoted arm (441) is provided with a main shaft pivoted arm lifting Connection Block (4411), main shaft pivoted arm lifting Connection Block (4411) is connected with vehicle guide frame (5), and on main shaft (44), also be fixed with a main draft arm (442), one end of dolly lifting screw (43) and described dolly lifter wheel reduction box (42) are in transmission connection, the other end and described main draft arm (442) are hinged, one end of main tie (45) is connected with main draft arm (442), a pair of driven shaft (46) is spaced apart and be arranged on rotationally the middle part of frame (3) and be positioned at the top of frame (3), upper and respectively be fixed with an end of a driven shaft pivoted arm (461) in the position corresponding to the both sides of the length direction of vehicle guide frame (5) at each driven shaft (46), and the other end pivot of driven shaft pivoted arm (461) is provided with a driven shaft pivoted arm lifting Connection Block (4611), driven shaft pivoted arm lifting Connection Block (4611) is connected with vehicle guide frame (5), and on each driven shaft (46), also be fixed with driven shaft draft arm (462), described driven shaft draft arm (462) on one of them driven shaft (46) in one end of transitional pull rod (47) and a pair of driven shaft (46) is connected, and the driven shaft draft arm (462) on another driven shaft (46) in the other end of transitional pull rod (47) and a pair of driven shaft (46) is connected, the other end of described main tie (45) is connected with described driven shaft draft arm (462) on the adjacent driven shaft (46), described trailer wagon reciprocating device (8) is arranged on the top of the other end of frame (3), described trailer wagon (6) is fixed with a traction Connection Block (62) on the outer wall at the position placed in the middle of an end of trailer wagon reciprocating device (8), this traction Connection Block (62) is connected with trailer wagon reciprocating device (8).

5. Stepped start-stop system self-feeding heat treatment furnace according to claim 4 is characterized in that the servomotor of described dolly lifting motor (4) for having the rotating function, and the shape of described main draft arm (442) is triangular in shape or fan-shaped.

6. Stepped start-stop system self-feeding heat treatment furnace according to claim 1, it is characterized in that at two upper lateral parts of the length direction of described vehicle guide frame (5) each consists of a guide rail (51) is arranged, each is provided with trolley idler wheels (63) rotationally on one side of the length direction of described trailer wagon (6) and the outer wall of opposite side, trolley idler wheels (63) consists of rolling pair with described guide rail (51), be fixed with fore-set supporting plate (64) at trailer wagon (6) towards a side of described body of heater (2) and in the position corresponding to described fore-set (61), fore-set (61) is fixed on the fore-set supporting plate (64).

7. Stepped start-stop system self-feeding heat treatment furnace according to claim 1, it is characterized in that described workpiece delivery mechanism (7) comprises workpiece upper frame (71) and workpiece upper frame seat (72), workpiece upper frame (71) is fixed on the workpiece upper frame seat (72), and between described pair of workpieces carrier (231), workpiece upper frame seat (72) is fixed on the top of described one group of fore-set (6).

8. Stepped start-stop system self-feeding heat treatment furnace according to claim 7 is characterized in that the top formation of the length direction of described workpiece upper frame (71) has a upper frame groove (711) that is used for the support workpiece that is used for for the workpiece contact.

9. Stepped start-stop system self-feeding heat treatment furnace according to claim 4, it is characterized in that described trailer wagon reciprocating device (8) comprises dolly traction electric machine (81), dolly traction gear reduction box (82) and dolly traction screw (83), dolly traction electric machine (81) cooperates with dolly traction gear reduction box (82) transmission, and be fixed on the top of the described the other end of described frame (3) together with dolly traction electric machine (81) by dolly traction gear reduction box (82), one end of dolly traction screw (83) and dolly traction gear reduction box (82) are in transmission connection, and the other end is connected with described traction Connection Block (62).

10. Stepped start-stop system self-feeding heat treatment furnace according to claim 9 is characterized in that the servomotor of described dolly traction electric machine (81) for having the rotating function