CN215832399U - Trolley oven is with drawing structure - Google Patents

Abstract

The application discloses a traction structure for a trolley oven, which comprises a base and a traction mechanism, wherein a channel penetrates through the interior of the base along the front-back direction, and the top of the channel penetrates upwards to be provided with a abdicating groove; the traction mechanism comprises two fixed shafts, a fixed pulley, a connecting rope, a driving motor and a transmission mechanism, the two fixed shafts are respectively arranged at the front end and the rear end of the channel, and the axes of the two fixed shafts are arranged along the left-right direction; the fixed pulleys are two and can be respectively and rotatably arranged on the two fixed shafts; the connecting rope is respectively wound on the two fixed pulleys, and both ends of the connecting rope are fixed on the trolley body; the driving motor is arranged in the channel, and an output shaft of the driving motor drives one of the fixed pulleys to rotate through the transmission mechanism. The connecting rope is simple in structure, reasonable in layout, good in stability and easy to control, and can slide between the connecting rope and the two fixed pulleys, so that the overload protection effect can be achieved.

Description

Trolley oven is with drawing structure

Technical Field

The application relates to the field of drying equipment, in particular to a traction structure for a trolley drying oven.

Background

At present, the trolley oven is mainly used for drying transformer cores and coils, drying paint-spraying electric cabinets and parts, drying rare earth, drying casting sand molds, drying motors and the like. In the process of surface treatment of the automobile parts, after the procedures of paint spraying, galvanizing and the like of the automobile parts, the car-type feeding and discharging mode is mostly adopted, and the requirement of drying the parts in large batch is met.

The existing trolley oven generally comprises a box body and a support frame, in the actual use process, a workpiece is placed on the support frame, the workpiece is dried by utilizing a heat source in the box body, and after the drying is finished, the box body is opened again to pull out the support frame, so that the workpiece can be recovered. However, the existing trolley oven mainly has the following defects:

1. the width in the box body is often fixed, and when workpieces with smaller sizes are dried, the space occupancy rate in the box body is lower, the heat efficiency is low, and the energy consumption is large;

2. the size of an object stage on the trolley is fixed, and when a workpiece with a larger size is placed, the workpiece is easy to shake or displace under the action of inertia, so that the workpiece is collided and damaged and even falls off;

3. the support frame generally drags the form of business turn over, because place a lot of work pieces on the support frame, the frictional force between support frame and the holding surface is great, drags out comparatively hard, and is not convenient for operate.

SUMMERY OF THE UTILITY MODEL

An aim at of this application provides a simple structure, and is rationally distributed, and the function is various, convenient operation, and the platform truck oven that drying efficiency is high.

Another aim at of this application provides a simple structure, rationally distributed, big or small adjustable, the thermal efficiency is high, and the oven body that the leakproofness is good.

Another aim at of this application provides a simple structure, and is rationally distributed, is convenient for remove, and stability is good, size adjustable, and easy operation's platform truck body.

Another aim at of this application provides a simple structure, and is rationally distributed, and the installation is simple, convenient, and stability is good, and the drive mechanism of the control of being convenient for.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: a trolley oven comprises a base, an oven body and a trolley body;

the oven body comprises a left side plate, a right side plate, a top plate and a heating assembly, the top plate is arranged right above the base, the upper end of the left side plate and the upper end of the right side plate are arranged on the lower surface of the top plate in a left-right sliding mode, the lower end of the left side plate and the lower end of the right side plate are arranged on the upper surface of the base in a left-right sliding mode, a box body with front and rear ends open is defined among the base, the left side plate, the right side plate and the top plate, and the heating assembly is arranged inside the box body;

the trolley body comprises guide wheels, a support frame and an object stage, the lower end of the support frame is arranged on the base in a rolling mode through at least three guide wheels, the object stage is arranged at the upper end of the support frame, and the length of the object stage in the left-right direction is adjustable;

the traction mechanism is arranged on the base and used for drawing the object stage to pass through the box body along the front-back direction.

Preferably, the upper end and the lower end of the left side plate and the upper end and the lower end of the right side plate extend towards the inner side of the box body and are provided with sealing plates. The advantages are that: the sealing performance between the left side plate and the right side plate and the base and the top plate is improved; moreover, the sealing plate can act as the base and the top plate within an equally adjustable space, thereby facilitating a reduction in the size of the base and the top plate.

Preferably, a left driving mechanism and a right driving mechanism are arranged on the top plate, the left driving mechanism is used for driving the left side plate to slide left and right, and the right driving mechanism is used for driving the right side plate to slide left and right. The advantages are that: the sliding of the left side plate is automatically controlled through the left driving mechanism, and the sliding of the right side plate is automatically controlled through the right driving mechanism.

Preferably, the front end and the rear end of the box body are respectively provided with a sealing element, the sealing element comprises a left sliding chute, a right sliding chute, a left sliding block, a right sliding block, a left fixing rod, a right fixing rod and a sealing curtain, the left sliding chute is arranged on the left side plate, and the left sliding block is arranged in the left sliding chute in a vertically sliding manner; the right sliding groove is arranged on the right side plate, and the right sliding block is arranged in the right sliding groove in a vertically sliding manner; the sealing curtain is of a structure capable of stretching along the left-right direction, the left fixing rod and the right fixing rod are respectively arranged at the left end and the right end of the sealing curtain, the left fixing rod is connected with the left sliding block, and the right fixing rod is connected with the right sliding block. The advantages are that: because the sealing curtain is of a structure which can stretch along the left-right direction, when the left side plate and the right side plate respectively slide towards two sides, the sealing curtain can always seal the front side and the rear side of the box body, so that the loss of heat in the box body is reduced, the heat insulation performance of the box body is improved, and the heat efficiency of the box body is improved; in addition, when the trolley body enters and exits the box body, the left sliding block and the right sliding block can slide upwards simultaneously, so that the sealing curtain is driven to slide upwards integrally through the left fixing rod and the right fixing rod, and the trolley body and workpieces on the trolley body can enter and exit the box body.

Preferably, a left driving piece used for driving the left sliding block to slide up and down is arranged on the left side plate, and a right driving piece used for driving the right sliding block to slide up and down is arranged on the right side plate. The advantages are that: the left sliding block and the right sliding block can be automatically and simultaneously driven to slide up and down through the left driving piece and the right driving piece.

Preferably, a channel penetrates through the interior of the base along the front-back direction, and a abdicating groove penetrates upwards from the top of the channel; the objective table is located the top of base, the lower extreme of support frame passes through the groove of stepping down run through arrange in the inside of passageway, drive mechanism sets up in the inside of passageway. The advantages are that: when the trolley body enters the box body, only the object stage and the upper end of the support frame are located inside the box body, the lower end of the support frame and other parts on the trolley body are located inside the channel, so that the space occupancy rate inside the box body can be improved, the heat efficiency of the box body is improved, the traction mechanism and the guide wheel can be prevented from interfering when a workpiece is placed on the guide wheel, and safety accidents are avoided.

Preferably, the left side and the right side of the support frame are respectively connected with the left side and the right side of the abdicating groove in a sliding manner. The advantages are that: the sealing performance between the support frame and the yielding groove is improved, the heat inside the box body is prevented from being discharged in a large amount of gaps between the support frame and the yielding groove, and therefore the heat insulation performance of the box body is improved.

Preferably, the outer ring surface of the guide wheel is provided with a limiting groove along the circumferential direction, the inner bottom of the channel is provided with a positioning guide rail along the front-back direction, and the limiting groove is arranged on the positioning guide rail in a rolling manner. The advantages are that: the positioning guide rail and the limiting groove are matched in a positioning mode, so that the guide wheel can be accurately guided, and the trolley body is prevented from deviating.

Preferably, the inner top of the channel is provided with a limiting guide rail along the front-back direction, and the limiting groove is in clearance fit in the limiting guide rail. The advantages are that: because the limiting groove is in clearance fit in the limiting guide rail, the limiting guide rail does not influence the rolling of the guide wheel, namely, the guide wheel and the limiting groove do not generate contact friction; however, when the center of gravity of the workpiece placed on the object stage is deviated to the two sides of the trolley body or the operation is improper, the limiting guide rail and the limiting groove form limiting fit when the trolley body is about to turn over, so that the trolley body is prevented from turning over.

Preferably, the traction mechanism comprises two fixed shafts, a fixed pulley, a connecting rope, a driving motor and a transmission mechanism, the two fixed shafts are respectively arranged at the front end and the rear end of the channel, and the axes of the two fixed shafts are arranged along the left-right direction; the number of the fixed pulleys is two, and the fixed pulleys are respectively and rotatably arranged on the two fixed shafts; the connecting rope is wound on the two fixed pulleys respectively, and two ends of the connecting rope are fixed on the trolley body; the driving motor is arranged in the channel, and an output shaft of the driving motor drives one of the fixed pulleys to rotate through the transmission mechanism. The advantages are that: the trolley body can be dragged in the front-back direction through the two fixed pulleys and the connecting rope, and the trolley is simple and reasonable in structure and easy to control; moreover, relative sliding can be allowed to occur between the connecting rope and the two fixed pulleys, so that an overload protection effect can be achieved.

Preferably, at least one end of the front end and the rear end of the channel is provided with an adjusting piece, and the adjusting piece is used for adjusting the tension of the connecting rope between the two fixed pulleys. The advantages are that: through the regulating part can adjust connect the rope with two tensioning force between the fixed pulley can reduce connect the rope and the installation degree of difficulty of fixed pulley.

Preferably, the adjusting part comprises two adjusting rods, the two adjusting rods are respectively rotatably arranged at the left side and the right side of the channel, and the axes of the two adjusting rods are arranged along the front-back direction; two the middle part of adjusting the pole all is equipped with the external screw thread, both ends all run through along the fore-and-aft direction about the fixed axle and are equipped with the internal thread hole, two internal thread hole difference threaded connection is in two on the external screw thread. The advantages are that: because the external thread is in threaded connection with the internal thread hole, when the two adjusting rods are simultaneously rotated and adjusted, the fixing shaft can be driven to move in the front-back direction, and the tension of the connecting rope can be adjusted.

Preferably, the transmission mechanism is a belt transmission or a chain transmission. The advantages are that: it is convenient for the degree of tensioning of the belt drive or chain drive to be simultaneously adjusted by means of the adjusting element.

Preferably, the front end and the rear end of the channel are provided with sealing end covers. The advantages are that: when the sealing end cover is disassembled, all parts in the channel can be detected and maintained, and when the sealing end cover is assembled, all parts in the channel can be sealed and protected.

Preferably, the trolley bodies are multiple and are sequentially arranged between two ends of the connecting rope in series. The advantages are that: one or more of the trolley bodies carry workpieces to enter the box body for drying, and the other trolley bodies can be loaded or unloaded.

Preferably, the objective table includes backup pad, left slide and right slide, the backup pad set up in the support frame upper end, left side slide and right slide are a plurality ofly, left side slide and arrange in turn between the right slide, just left side slide and right slide all can the horizontal slip set up in on the upper surface of backup pad. The advantages are that: workpieces with different sizes can be placed by sliding the left sliding plate and the right sliding plate towards the left side and the right side respectively.

Preferably, a left guard plate is arranged at the left end of each of the left sliding plates in an upward mode, and a right guard plate is arranged at the right end of each of the right sliding plates in an upward mode. The advantages are that: on one hand, the left guard plate and the right guard plate can play a role in protecting a workpiece; on the other hand, the left guard plate can connect a plurality of left sliding plates into a whole, and the right guard plate can connect a plurality of right sliding plates into a whole, so that the sliding operation of the left sliding plate and the right sliding plate is simplified.

Preferably, a plurality of vent holes are formed between the upper surface and the lower surface of the support plate in a penetrating manner. The advantages are that: the ventilation holes can accelerate the air flow between the upper side and the lower side of the supporting plate, so that the drying efficiency of the bottom of the workpiece is accelerated.

Compared with the prior art, the beneficial effect of this application lies in:

(1) the size of the box body can be changed by sliding the left side plate and the right side plate to the left side and the right side, so that the size of the box body can be adjusted in time according to the sizes of the trolley bodies with different sizes and the sizes of the workpieces placed on the trolley bodies, the space occupancy rate in the box body is improved, the heat efficiency of the box body is improved, and the energy consumption is reduced;

(2) because the sealing curtain is of a structure which can stretch along the left-right direction, when the left side plate and the right side plate slide towards the left-right direction, the sealing curtain can seal the front side and the rear side of the box body; moreover, the left slider and the right slider can drive the whole sealing curtain to slide up and down by sliding the left slider and the right slider up and down simultaneously, so that the sealing curtain is driven to slide up only when the trolley body enters or exits the box body, the box body is opened to allow the trolley body and workpieces placed on the trolley body to pass through, the heat loss in the box body is greatly reduced, the heat insulation performance of the box body is improved, and the energy consumption is further reduced;

(3) the size of the object stage can be adjusted along the left and right directions according to the size of a workpiece to be placed, so that the workpiece can be completely placed on the object stage, the object stage has high occupancy rate and good stability, and the workpiece is not easy to fall off;

(4) the guide wheel is arranged at the lower end of the support frame, so that the support frame is convenient to move, and the support frame has good stability in the moving process, and workpieces are not easy to shake or displace on the objective table;

(5) the objective table, the guide wheel and the traction mechanism can be separated through the channel in the base, so that the guide wheel and the traction mechanism can be prevented from interfering when a workpiece is placed, the space occupancy rate in the box body can be improved, the heat efficiency in the box body can be improved, and the energy consumption can be reduced;

(6) because both ends of the connecting rope are connected with the trolley body, the connecting rope can form a closed loop structure between the two fixed pulleys, the front and back movement of the trolley body can be controlled by controlling the positive and negative rotation of the motor, the trolley is simple in structure, reasonable in layout, good in stability and easy to control, and the connecting rope and the two fixed pulleys can slide to play a role in overload protection;

(7) the tension of the connecting rope can be adjusted through the adjusting piece, so that the installation difficulty of the traction mechanism is reduced; and the transmission mechanism adopts a belt transmission or chain transmission mode, the tensioning degree of the belt transmission or chain transmission can be adjusted simultaneously through the adjusting piece, and the installation difficulty of the motor and the transmission mechanism can be reduced.

Drawings

FIG. 1 is a perspective view of a trolley oven;

FIG. 2 is a perspective view of the oven body;

FIG. 3 is a cross-sectional view of the oven body;

FIG. 4 is a schematic view of the installation of the seal;

FIG. 5 is a perspective view of the trolley body;

FIG. 6 is a schematic view of the installation of the trolley body;

FIG. 7 is a schematic view of the installation of the traction mechanism;

FIG. 8 is an enlarged view of a portion of FIG. 7 at I;

fig. 9 is a schematic view of the installation of the adjustment member.

In the figure: 1. a base; 11. a channel; 12. a yielding groove; 13. positioning the guide rail; 14. limiting a guide rail; 15. sealing the end cap; 16. mounting holes; 17. a fixed block; 2. a baking oven body; 20. a box body; 21. a left side plate; 22. a right side plate; 23. a top plate; 24. a heating assembly; 25. a sealing plate; 26. a seal member; 261. a left chute; 262. a right chute; 263. a left slider; 264. a right slider; 265. a left fixed link; 266. a right fixing rod; 267. a sealing curtain; 268. a left drive member; 269. a right driving member; 27. a left drive mechanism; 28. a right drive mechanism; 3. a trolley body; 31. a guide rail; 311. a limiting groove; 32. a support frame; 33. an object stage; 331. a support plate; 332. a left slide plate; 333. a right slide plate; 334. a left guard plate; 335. a right guard plate; 336. a vent hole; 4. a traction mechanism; 41. a fixed shaft; 42. a fixed pulley; 43. connecting ropes; 44. a drive motor; 45. a transmission mechanism; 5. an adjustment member; 51. and adjusting the rod.

Detailed Description

The present application is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it indicates that the orientation and positional relationship shown in the drawings are based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Referring to fig. 1-9, a trolley oven comprises a base 1, an oven body 2, a trolley body 3 and a traction mechanism 4;

the oven body 2 includes a left side plate 21, a right side plate 22, a top plate 23, a left driving mechanism 27, a right driving mechanism 28, a heating assembly 24, a sealing plate 25 and a sealing member 26, the top plate 23 is disposed directly above the base 1, and the top plate 23 can be mounted and fixed on the base 1 in a supporting manner by a supporting rod (it should be noted that the supporting rod cannot interfere with the trolley body 3 and a workpiece placed thereon through the box 20), or can be mounted and fixed on a ceiling or other structures above the base 1 in a hanging rod hoisting manner. The upper end of the left side plate 21 and the upper end of the right side plate 22 are arranged on the lower surface of the top plate 23 in a left-right sliding manner, and the lower end of the left side plate 21 and the lower end of the right side plate 22 are arranged on the upper surface of the base 1 in a left-right sliding manner; as shown in fig. 2, the sliding arrangement of the left side plate 21 and the right side plate 22 can be realized by the sliding fit between the sliding groove sliders; the left driving mechanism 27 is mounted on the top plate 23 and is used for automatically driving the left side plate 21 to slide along the left-right direction; the right driving mechanism 28 is mounted on the top plate 23 and is used for automatically driving the right side plate 22 to slide along the left-right direction; the left drive 27 and the right drive 28 are preferably air cylinders or hydraulic cylinders or screw drives or worm gear drives. Enclose between base 1, left side board 21, right side board 22 and the roof 23 and enclose to have both ends to be open box 20 around, through sliding left side board 21 and right side board 22 along the left and right sides direction, can change the size of box 20 to can adapt to the not work piece of the not equidimension platform truck body 3 and different width. As shown in fig. 3, the sealing plate 25 may improve the sealing performance between the left/ right side plates 21, 22 and the top plate 23 and the base 1, and within the adjustment range of the same size of the box body 20, the sealing plate 25 may serve as a part of the base 1 and the top plate 23, so that the sizes of the base 1 and the top plate 23 may be reduced. The heating assembly 24 is disposed inside the cabinet 20 and can be fixedly mounted on the top plate 23 and/or the left side plate 21 and/or the right side plate 22. Two sealing members 26 are provided at the front and rear ends of the case 20, respectively.

As shown in fig. 4, the sealing member 26 includes a left sliding slot 261, a right sliding slot 262 (the right sliding slot 262 is not shown in fig. 4, the right sliding slot 262 and the left sliding slot 261 are in a left-right symmetrical relationship, as shown in fig. 2), a left slider 263, a right slider 264, a left fixing rod 265, a right fixing rod 266, a sealing curtain 267, a left driving member 268 and a right driving member 269, the left sliding slot 261 is fixed on the left side plate 21 by welding or screwing, and the left slider 263 is disposed in the left sliding slot 261 in a vertical sliding manner; the right sliding groove 262 is fixedly installed on the right side plate 22 by welding or screwing and the like, and the right sliding block 264 is arranged in the right sliding groove 262 in a vertical sliding manner. The sealing curtain 267 is a structure which can stretch along the left and right directions, and the sealing curtain 267 can be made of elastic or flexible materials or can be of a bendable plate-shaped structure; the left fixing rod 265 and the right fixing rod 266 are respectively fixed to the left and right ends of the sealing curtain 267, so as to prevent the upper and lower portions of the sealing curtain 267 from interfering with each other, thereby ensuring that the sealing curtain 267 can stably extend and retract in the left-right direction, and ensuring that the sealing curtain 267 can seal the front and rear ends of the box 20 when the left side plate 21 and the right side plate 22 slide in the left-right direction. The left fixing rod 265 is connected with the left sliding block 263, and the right fixing rod 266 is connected with the right sliding block 264, so that the sealing curtain 267 can be driven to integrally slide up and down by simultaneously sliding the left sliding block 263 and the right sliding block 264; the left driving piece 268 is fixedly arranged on the left side plate 21 and is used for automatically driving the left sliding block 263 to slide up and down; the right driving piece 269 is fixed on the right side plate 22 and is used for automatically driving the right slider 264 to slide up and down; because the height of the sealing curtain 267 and the amplitude of the movement thereof are large, the left driving piece 268 and the right driving piece 269 are preferably driven by a lead screw, so that the structure is more compact, and the driving stability and the precision are good. When the trolley body 3 needs to enter or exit the box body 20, the sealing curtain 267 is driven to move upwards by the left driving piece 268 and the right driving piece 269, so that the front end and/or the rear end of the box body 20 are/is opened, and the opening height of the sealing curtain 267 can be adjusted according to the highest point of a workpiece, so that the trolley body 3 and the workpiece placed on the trolley body can pass through; when the trolley body 3 does not pass through, the sealing curtain 267 can be driven to move downwards, so that the front end and the rear end of the box body 20 are sealed, the heat loss is reduced, and the energy consumption is reduced. If the top plate 23 interferes with the vertical movement of the sealing curtain 267, a corresponding abdicating structure should be provided on the top plate 23.

As shown in fig. 5, the trolley body 3 includes at least three guide wheels 31, a support frame 32 and an object stage 33, the guide wheels 31 are fixed to the lower end of the support frame 32 through a rotating shaft and a bearing, so that the support frame 32 can be moved more easily, and the support stability of the support frame 32 by the guide wheels 31 is good in the moving process. As shown in fig. 6, a channel 11 is provided in the base 1 in a front-back direction, and an abdicating groove 12 is provided in the top of the channel 11 in an upward direction, so that the object stage 33 is disposed above the base 1, and the lower end of the supporting frame 32 is disposed in the channel 11 through the abdicating groove 12, so that the traction mechanism 4 and the guide wheel 31 can be disposed in the channel 11. On one hand, after the trolley body 3 enters the box body 20, only the object carrying platform 33 and the upper end of the support frame 32 are positioned in the box body 20, and the lower end of the support frame 32 and other parts on the trolley body 3 are positioned in the channel 11, so that the space occupancy rate in the box body 20 is improved, and the heat efficiency of the box body 20 is improved; on the other hand, the traction mechanism 4 and the guide wheel 31 can be prevented from interfering when the workpiece is placed, so that safety accidents are avoided. In addition, the left side and the right side of the support frame 32 are respectively connected to the left side and the right side of the abdicating groove 12 in a sliding manner, so that the sealing performance between the support frame 32 and the abdicating groove 12 is improved, the heat inside the box body 20 is prevented from being discharged in a large amount through the gap between the support frame 32 and the abdicating groove 12, and the heat insulation performance of the box body 20 is improved. In addition, as shown in fig. 6, a limiting groove 311 is formed in the outer annular surface of the guide wheel 31 along the circumferential direction, a positioning guide rail 13 is welded to the inner bottom of the channel 11 along the front-rear direction, the limiting groove 311 is arranged on the positioning guide rail 13 in a rolling manner, and the guide wheel 31 can be accurately guided by positioning fit between the positioning guide rail 13 and the limiting groove 311, so that the guide wheel 31 is prevented from deviating, and the moving precision of the trolley body 3 is ensured. Moreover, a limit guide rail 14 can be arranged at the inner top of the channel 11 along the front-back direction, the limit groove 311 is in clearance fit in the limit guide rail 14, and the limit groove 311 is in clearance fit in the limit guide rail 14, namely, contact friction cannot be generated between the guide wheel 31 and the limit groove 311, so that the limit guide rail 14 does not influence the rolling of the guide wheel 31; however, when the center of gravity of the workpiece placed on the stage 33 is shifted to the both sides of the carriage body 3 or the operation is not proper and the carriage body 3 is about to turn over, the limit rail 14 is engaged with the limit groove 311 in a limit manner, thereby preventing the carriage body 3 from turning over.

As shown in fig. 5, the object stage 33 includes a support plate 331, a left slide plate 332 and a right slide plate 333, the support plate 331 is welded or screwed on the upper end of the support frame 32, the left slide plate 332 and the right slide plate 333 are multiple, the left slide plate 332 and the right slide plate 333 are alternately arranged, and both the left slide plate 332 and the right slide plate 333 can be slidably arranged on the upper surface of the support plate 331 from left to right; the left slide plate 332 and the right slide plate 333 can slide along the left-right direction according to the size of the workpiece, so that the size of the whole formed by the left slide plate 332 and the right slide plate 333 in the left-right direction is changed, and the workpiece with different sizes can be adapted; when a workpiece with a large size is placed, the gap between the left slide plate 332 and the right slide plate 333 which is staggered is large, so that the air circulation between the upper side and the lower side of the left slide plate 332 and the right slide plate 333 is good, and the drying efficiency of the bottom of the workpiece is accelerated. The sliding connection between the left sliding plate 332 and the right sliding plate 333 and the support plate 331 can be realized by adopting a sliding chute and a sliding block; it should be noted that, since the rolling direction of the guide wheel 31 is perpendicular to the sliding direction of the left sliding plate 332 and the right sliding plate 333, the left sliding plate 332 and the right sliding plate 333 do not slide artificially during the rolling process of the guide wheel 31, but for the sake of safety, the sliding resistance of the left sliding plate 332 and the right sliding plate 333 may be increased, for example, a wear-resistant gasket may be added between the sliding block of the sliding slot between them to increase the sliding resistance of the left sliding plate 332 and the right sliding plate 333, thereby ensuring the stability of the left sliding plate 332 and the right sliding plate 333 for supporting the workpiece. In addition, a left guard plate 334 is welded at the left end of each left sliding plate 332 upwards, and a right guard plate 335 is welded at the right end of each right sliding plate 333 upwards, so that on one hand, the left guard plate 334 and the right guard plate 335 can play a role in protecting workpieces; on the other hand, the left cover 334 may integrally connect the plurality of left slide plates 332 and the right cover 335 may integrally connect the plurality of right slide plates 333, thereby simplifying the sliding operation of the left and right slide plates 332 and 333. In addition, a plurality of ventilation holes 336 penetrate through the upper surface and the lower surface of the supporting plate 331, and the ventilation holes 336 can accelerate the air flow between the upper side and the lower side of the supporting plate 331, so that the drying efficiency of the bottom of the workpiece is accelerated.

As shown in fig. 7 and 8, the traction mechanism 4 includes two fixed shafts 41, a fixed pulley 42, a connecting rope 43, a driving motor 44 and a transmission mechanism 45, the two fixed shafts 41 are respectively disposed at the front and rear ends of the channel 11, and the axes of the two fixed shafts 41 are arranged along the left-right direction; the fixed pulleys 42 are two and rotatably disposed on the two fixed shafts 41 through bearings, respectively. The connecting rope 43 is respectively wound on the two fixed pulleys 42, two ends of the connecting rope 43 are fixed on the support frame 32, the connecting rope 43 can be tensioned under the action of the two fixed pulleys 42 to form an annular structure, and the support frame 32 can be pulled to move back and forth by freely rotating one of the fixed pulleys 42 through the connecting rope 43. The driving motor 44 is disposed in the channel 11, and an output shaft of the driving motor 44 drives one of the fixed pulleys 42 to rotate through the transmission mechanism 45, so as to drive the supporting frame 32 to move along the front-back direction by controlling the driving motor 44 to rotate in the forward and backward directions, thereby controlling the trolley body 3 to pass through the box 20 along the front-back direction. Moreover, the connecting rope 43 and the two fixed pulleys 42 can allow relative sliding, so that an overload protection effect can be realized. In addition, at least one end of the front end and the rear end of the channel 11 is provided with an adjusting piece 5, the adjusting piece 5 comprises two adjusting rods 51, and the two adjusting rods 51 are respectively and rotatably arranged at the left side and the right side of the channel 11. As shown in fig. 9, one end of the adjusting rod 51 is inserted into the mounting hole 16 formed on the base 1, and the other end of the adjusting rod is limited by the limiting hole 171 of the fixing block 17, so that it is ensured that the adjusting rod 51 can only rotate but not displace, in order to rotate the adjusting rod 51, the limiting hole 171 can be of a step-shaped structure, so that while the adjusting rod 51 is axially limited, one end of the adjusting rod 51 can be exposed, and one end of the adjusting rod 51 exposed on the adjusting rod 51 is provided with a hexagon socket head cap screw hole, so that the adjusting rod 51 can be rotated. Of course, the adjustment lever 51 may be directly rotated by a vise. Moreover, the axes of the two adjusting rods 51 are arranged along the front-back direction, and the middle parts of the two adjusting rods 51 are provided with external threads; both ends all run through along the fore-and-aft direction and are equipped with the internal thread hole about fixed axle 41, and two internal thread holes are threaded connection respectively on two external screw threads, then when rotating regulation pole 51 simultaneously, can drive fixed axle 41 and remove along the fore-and-aft direction to can adjust the tensile force of connecting rope 43 between two fixed pulleys 42, can adjust the tensile force of connecting rope 43 after installing two fixed axles 41, thereby greatly reduced fixed axle 41 installs the degree of difficulty. In addition, the transmission mechanism 45 is preferably a belt transmission or a chain transmission, so that the tension between the transmission mechanism 45 and the fixed pulley 42 does not need to be approached when the driving motor 44 is installed, and the adjustment can be performed by the adjusting piece 5 after the driving motor 44 is installed. It should be noted that, when there is one adjusting member 5, the driving motor 44 should be located between the two fixed shafts 41 and should be disposed at the side having the adjusting member 5, so that the tensioning degree of the transmission mechanism 45 and the connecting rope 43 can be adjusted by one adjusting member 5; when the two adjusting members 5 are provided, the arrangement orientation of the driving motor 44 does not need to be considered, and the tension of the belt drive or chain drive can be adjusted by the adjusting member 5 near one side of the driving motor 44, and then the tension of the connecting rope 43 can be adjusted by the other adjusting member 5. In addition, as shown in fig. 1, the front end and the rear end of the channel 11 are respectively fixed with the sealing end covers 15 through screws, when the sealing end covers 15 are removed, each part inside the channel 11 can be detected and maintained, and when the sealing end covers 15 are installed, each part inside the channel 11 can be sealed and protected.

It should be noted that, the trolley bodies 3 may be multiple, and are sequentially connected in series between two ends of the connecting rope 43, when in operation, one or more trolley bodies 3 carry a workpiece to enter the box body 20 for drying, and the other trolley bodies 3 are located outside the box body 20, and can be used for loading or unloading respectively.

The foregoing has described the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (6)

1. The utility model provides a platform truck oven is with pulling structure, includes base and drive mechanism, its characterized in that: a channel penetrates through the interior of the base along the front-back direction, and a abdicating groove penetrates through the top of the channel upwards; the traction mechanism comprises two fixed shafts, a fixed pulley, a connecting rope, a driving motor and a transmission mechanism, the two fixed shafts are respectively arranged at the front end and the rear end of the channel, and the axes of the two fixed shafts are arranged along the left-right direction; the number of the fixed pulleys is two, and the fixed pulleys are respectively and rotatably arranged on the two fixed shafts; the connecting rope is wound on the two fixed pulleys respectively, and two ends of the connecting rope are fixed on the trolley body; the driving motor is arranged in the channel, and an output shaft of the driving motor drives one of the fixed pulleys to rotate through the transmission mechanism.

2. The traction structure for a trolley oven according to claim 1, wherein at least one of the front and rear ends of the channel is provided with an adjusting member for adjusting the tension of the connecting rope between the two fixed pulleys.

3. The traction structure for the trolley oven as claimed in claim 2, wherein the adjusting member comprises two adjusting rods, the two adjusting rods are respectively rotatably arranged at the left side and the right side of the channel, and the axes of the two adjusting rods are arranged along the front-back direction; two the middle part of adjusting the pole all is equipped with the external screw thread, both ends all run through along the fore-and-aft direction about the fixed axle and are equipped with the internal thread hole, two internal thread hole difference threaded connection is in two on the external screw thread.

4. The traction structure for the trolley oven as claimed in claim 3, wherein the transmission mechanism is a belt transmission or a chain transmission.

5. The pulling structure for trolley ovens according to any one of claims 1 to 4, wherein the front and rear ends of the channel are provided with sealing end caps.

6. The traction structure for the trolley oven as claimed in any one of claims 1 to 4, wherein the trolley body is provided in plurality and is sequentially arranged between two ends of the connecting rope in series.

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