CN201862733U - Ingot trolley - Google Patents

Abstract

The utility model discloses an fortune ingot dolly locates on fortune ingot dolly track, fortune ingot dolly track intersects with the manipulator track, and fortune ingot dolly includes: a vehicle body; the running mechanism is arranged at the bottom of the trolley body and drives the ingot conveying trolley to run on the ingot conveying trolley track; a rotary mechanism for bearing weight of and rotational positioning forges on locating the automobile body, the utility model discloses an ingot transport dolly can make forging and pressing material loading time significantly reduce, effectively improves the work efficiency of whole forging and pressing unit equipment, and fixes a position accurately, can promote the forging and pressing quality.

Description

Ingot trolley

technical field

The utility model relates to forging conveying equipment, in particular to a trolley for transporting ingots.

Background technique

In the current field of forging and forging technology, various presses are developing towards high precision, numerical control, automation, networking, and high production efficiency. The high production efficiency of rapid free forging is not only reflected in the high speed of the press itself, High efficiency, high automation and high efficiency of auxiliary processes and auxiliary equipment in forging production also play a very important role. For example, before the press press forges steel ingots and other raw materials, the steel ingots must be transported to the appropriate position by the conveying equipment. In order to facilitate the mechanical structure of the press to operate the steel ingot, and in order to realize the smooth operation of the press, the angle and height of the position of the steel ingot should be precisely controlled, and subsequently, in order to meet the above requirements, the conveying equipment, It will take a long time to adjust, and the work efficiency is low. Even under some special working conditions, even if it takes a long time to adjust, the relevant precision requirements cannot be met, thereby affecting the quality of forging.

For example, the common conveying equipment in the prior art is the lifting and rotating table, which is installed in the track of the manipulator, which has the function of lifting and rotating. machine track, and rotate to adjust the angle for the press to carry out the forging operation, but the work efficiency of the lifting rotary table is low, and the accuracy of the rotation positioning is also low. In some cases where the working space is insufficient, this lifting rotary table It is not easy to set up, and there may be problems blocking the manipulator track.

As mentioned above, how to improve the working efficiency of the auxiliary process and auxiliary equipment, so as to minimize the maneuvering time occupied by the press, so as to improve the efficiency of the entire forging process, has become a problem that those skilled in the art are devoted to research.

In view of this situation, the designer has continuously carried out research and development and improvement by virtue of his years of technical experience in related fields and rich professional knowledge, and through a large number of practical verifications, he has proposed the technical scheme of the ingot transporting trolley of the present utility model.

Utility model content

The purpose of the utility model is to provide a trolley for transporting ingots, which can greatly reduce the feeding time of the forging press, effectively improve the working efficiency of the entire forging press unit equipment, and has accurate positioning, which can improve the forging press quality.

In order to achieve the above object, the utility model provides an ingot transporting trolley, the ingot transporting trolley is arranged on the track of the ingot transporting trolley, the track of the ingot transporting trolley intersects with the manipulator track, and the ingot transporting trolley comprises: a car body The traveling mechanism that drives the ingot transporting trolley to walk on the track of the ingot transporting trolley is arranged at the bottom of the car body; the rotating mechanism for carrying and rotating and positioning forgings is arranged on the car body.

The above-mentioned ingot conveying trolley, wherein, the traveling mechanism includes: a first wheel set, and the first wheel set includes a plurality of walking wheel sets, and the walking wheel set further includes an axle and two wheels installed at both ends of the axle. Wheels, the axle is mounted on the bottom of the car body, a plurality of the walking wheel sets are arranged in parallel, and the wheel on one side of the plurality of walking wheel sets is provided on the wheel surface for accommodating ingots. The guide groove of the trolley track; the second wheel set includes a plurality of the walking wheel sets, and the wheels on the same side of the multiple walking wheel sets are connected to each other through a connecting rod; the driving device is connected and drives the plurality of walking wheels One of the groups.

The above-mentioned ingot conveying trolley, wherein, the driving device includes: a driving motor, arranged at the bottom of the car body; a first transmission gear, arranged on the axle of a running wheel set in the second wheel set; The gear is arranged on the output shaft of the driving motor, and the second transmission gear meshes with the first transmission gear.

The above-mentioned ingot conveying trolley, wherein the connecting rod is arranged horizontally, one end of which is rotatably connected to the outer side of a wheel in a road wheel set, and the other end is rotatably connected to the same side wheel in the adjacent road wheel set outside.

The above-mentioned ingot conveying trolley, wherein, the traveling mechanism includes a plurality of second wheel sets, and the second wheel set further includes: a plurality of walking wheel sets, and the walking wheel set further includes an axle and is installed on the axle The wheels at both ends, the axles are mounted on the bottom of the car body, a plurality of the walking wheel sets are arranged in parallel, and the wheels on one side of the plurality of walking wheel sets are provided on the wheel surface for accommodating The guide groove of the trolley track for transporting ingots, the wheels on the same side of the plurality of walking wheel sets are connected to each other through connecting rods; the driving device is connected to and drives one of the plurality of walking wheel sets.

The above-mentioned ingot transporting trolley, wherein, the rotating mechanism includes: a slewing support, including an inner ring and an outer ring, the inner ring is fixed on the car body, the outer ring is sleeved on the outer side of the inner ring and can Rotate relative to the inner ring; the turret for carrying forgings is set on the outer ring of the slewing support; the slewing drive is connected to the outer ring of the slewing support and can drive and brake the rotation of the outer ring ; A rotary encoder structure for detecting the rotation angle of the turntable and feeding back signals to the rotary drive is installed on the car body and the turntable.

The above-mentioned ingot conveying trolley, wherein, the turntable includes: a base body, which is cylindrical, with a through hole vertically opened in the middle part, and a circle of extensions protruding outward from the lower part of the base body, and the extensions are fixed. On the outer ring, a base guide sleeve is provided on the extension part, and the opening of the base guide sleeve faces upwards; the carrying platform has a platform part for carrying forged parts, and the middle part of the platform part faces A rotating shaft is arranged below, and the rotating shaft is inserted into the through hole of the base body, and a platform guide sleeve is provided on the lower surface of the platform portion opposite to the guide sleeve of the base body, and the opening of the platform guide sleeve faces downward; One end of the transmission shaft is fitly inserted into the base guide sleeve, and the other end is fitly inserted into the platform guide sleeve; a plurality of pressure springs are vertically arranged between the platform portion and the extension portion.

In the aforementioned ingot conveying trolley, a plurality of the pressure springs are distributed between the platform portion and the extension portion to form a circle.

The above-mentioned ingot conveying trolley, wherein, the rotary drive is a servo motor.

In the above-mentioned ingot conveying trolley, wherein the encoder structure includes an encoder rotating shaft, the encoder rotating shaft is coaxially connected to the rotating shaft and can rotate coaxially therewith.

The above-mentioned ingot transporting trolley, wherein, the ingot transporting trolley is provided with a proximity switch.

As can be seen from the above, the ingot transport trolley of the utility model has the following advantages and characteristics:

1. The ingot transport trolley of the utility model can realize fast loading of steel ingots by means of the traveling mechanism and the rotating mechanism, and effectively improve the working efficiency of the overall forging equipment.

2. The ingot transport trolley of the utility model can realize the precise positioning of the steel ingot at any angle by means of the rotating mechanism, so as to facilitate the forging operation of the press.

3. The ingot transport trolley of the utility model is easy to control, and it is convenient to realize the automation of control, which conforms to the development trend of automation of forging technology.

4. The ingot transport trolley of the utility model can enter and exit the track of the manipulator, thereby avoiding affecting the normal operation of the manipulator and press, and can be adapted to various working spaces and working environments.

5. The trolley for transporting ingots of the utility model has advantages over the prior art in terms of safety and maintenance.

Description of drawings

The following drawings are only intended to illustrate and explain the utility model schematically, and do not limit the scope of the utility model.

Fig. 1 is a schematic diagram of the overall front view of the ingot transport trolley of the utility model;

Fig. 2 is a schematic diagram of the overall side view of the ingot transport trolley of the utility model;

Fig. 3 is a schematic plan view of the traveling mechanism of the trolley for transporting ingots of the utility model;

Fig. 4 is a schematic diagram of the rotating mechanism of the ingot transporting trolley of the utility model;

Fig. 5 is a schematic diagram of the application of the ingot transport trolley of the present invention.

Explanation of reference signs:

100 ingot trolley

200 ingot trolley track

300 proximity switch

1 body

2 walking mechanism

21 first wheel set

211 axle

212 bearing

213 wheels

2131 guide groove

22 second wheel set

221 connecting rod

222 driving device

2221 drive motor

2222 First drive gear

2223 Second drive gear

3 rotating mechanism

31 Slewing support

311 inner ring

312 outer ring

32 Turntable

321 substrate

3211 through hole

3212 Epitaxy

3213 Base guide sleeve

322 carrying platform

3221 Platform Department

3222 shaft

3223 platform guide sleeve

323 drive shaft

324 pressure spring

33 Rotary drive

34 Rotary encoder structure

341 encoder rotary shaft

342 encoder

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present utility model, the specific implementation of the present utility model is now described with reference to the accompanying drawings, but those skilled in the art should understand that this is not a limitation.

Please refer to Figure 1 and Figure 2 in conjunction, wherein Figure 1 is a schematic diagram of the overall front view of the utility model ingot transport trolley, and Figure 2 is a schematic diagram of the overall side view of the utility model ingot transport trolley, as shown in the figure, the utility model of the utility model ingot transport trolley 100 mainly includes: a car body 1, a traveling mechanism 2 and a rotating mechanism 3, wherein the traveling mechanism 2 is arranged at the bottom of the car body 1, and it is mainly used to drive the ingot transport trolley 100 to make it move; the rotating mechanism 3 is arranged on the car body 1, It is mainly used to carry forgings such as steel ingots and rotate and position them, so as to facilitate the clamping operation of the manipulator.

The ingot transporting trolley 100 walks on the ingot transporting trolley track 200 (with reference to Fig. 5), and the traveling mechanism 2 is arranged on the ingot transporting trolley track to drive the ingot transporting trolley 100 to walk on its track. The ingot transporting trolley track is the same as the known operation The track of the machine is intersected, usually vertically, so as to avoid mutual obstruction of the progress of the equipment. Those skilled in the art should easily think that at the intersection of the two tracks, the track of the ingot transporting trolley should be provided with a gap to accommodate the track of the manipulator. , ideally, the clearance of the track of the ingot transport trolley should be slightly larger than the track width of the manipulator track. In this way, the steel ingot is sent to the manipulator track by the ingot transport trolley for the manipulator to carry out the clamping operation.

In addition, a proximity switch 300 can be installed on the car body of the trolley, and a metal plate that can sense each other with the proximity switch is installed at an appropriate position on the track or external equipment, so that when the ingot transport trolley walks to a designated position, the proximity switch 300 and the proximity switch The induction of the metal plate causes the ingot conveying trolley 100 to stop walking. The technology related to the proximity switch is a relatively mature technology in this field, so it will not be repeated here.

Please refer to Fig. 3 below, which is a schematic plan view of the traveling mechanism of the ingot transporting trolley of the present invention. As shown in the figure, the traveling mechanism 2 is arranged at the bottom of the car body 1, which mainly includes: the first wheel group 21 and the second wheel group 22. The first and second wheel sets are arranged side by side at the bottom of the car body 1 and on the track of the ingot transporting trolley, extending the feeding direction of the ingot transporting trolley 100, and the first wheel set 21 is arranged at the bottom of the front end of the ingot transporting trolley 100, The second wheel set 22 is arranged on the rear end bottom of the ingot transporting trolley 100, as shown in Figure 3, or the two are also interchangeable, the first wheel set 21 is located on the rear end bottom of the ingot transporting trolley 100, and the second wheel Group 22 is located at the bottom of the front end of the ingot trolley 100 .

The first wheel set 21 includes two axles 211, which are installed in parallel at the bottom of the car body 1, and can be installed at the bottom of the car body 1 through common bearings 212, as shown in Figure 3. In this embodiment, each An axle 211 is mounted on the bottom of the vehicle body 1 through two bearings 212 . Both ends of the two axles 211 are equipped with wheels 213, and the wheels 213 are located on the track of the trolley for transporting ingots. Each axle 212 and the wheels 213 installed at both ends thereof form a walking wheel group. A wheel set 21 includes two walking wheel sets, and the two walking wheel sets are arranged parallel to the bottom of the car body 1. When the ingot transport trolley 100 is walking, the two walking wheel sets move synchronously, while in other embodiments Among them, according to the needs of the actual situation, the front wheel set 21 can also include three or more walking wheel sets to provide a more stable bearing capacity. Similarly, multiple walking wheel sets are arranged parallel to each other. The wheel 213 on one side of the plurality of walking wheel sets has a guide groove 2131 on the wheel surface, which is used to accommodate a single ingot transporting trolley track 200, so as to prevent the ingot transporting trolley 100 from sliding laterally from its track and ensure the ingot transporting. The trolley 100 is stable in walking. It is worth mentioning that, in general, only one side of the wheel is provided with the above-mentioned guide groove 2131. If the wheels on both sides are provided with guide grooves, then due to deviations in machining accuracy and matching accuracy, it is easy for the ingot transporting trolley to move. There is a phenomenon that the wheels and tracks are stuck.

The second wheel set 22 has the same structure as most of the first wheel set 21, and it also includes a plurality of running wheel sets, and the running wheel set of the second wheel set 22 is arranged in parallel with the running wheel set of the first wheel set 21. The wheels on one side of the plurality of walking wheel sets included in the second wheel set 22 are also provided with a guide groove for accommodating the ingot transport trolley track, and the wheels with the guide groove in the second wheel set 22 are provided with the first wheel set. The wheels of the channel are on the same side. The difference between the second wheel set 22 and the first wheel set 21 is that the wheels on the same side in a plurality of road wheel sets are connected to each other by a connecting rod 221, so that when one of the road wheel sets rotates, it will pass through the connecting rod 221. Drive other walking wheel sets to rotate to make them rotate synchronously. Regarding the connection mode between the wheels and the connecting rod 221, as shown in Figures 1 and 3, the connecting rod 221 is arranged horizontally, and one end of the connecting rod 221 is rotatably connected to a walking wheel The outer side of one wheel in the group, and the other end is rotatably connected to the outer side of the wheel on the same side in the adjacent road wheel group. This kind of connecting rod connection transmission structure is relatively common in the prior art, so the details are here Just not going into details, multiple wheels in different walking wheel sets are thus connected. The second wheel set 22 also includes a driving device 222, the driving device 222 is connected to one of a plurality of road wheel sets, and drives the road wheel set to rotate, and the driven wheel set will pass through the connecting rod 221 drives the walking wheel sets adjacent to the branch to rotate, and then drives a plurality of walking wheel sets in the second wheel set 22 to rotate together.

The driving device 222 can include a driving motor 2221, a first transmission gear 2222 and a second transmission gear 2223, wherein the first transmission gear 2222 is arranged on an axle shaft in the second wheel set 22, and the second transmission gear 2223 is provided On the output shaft of the driving motor 2221 , the first transmission gear 2222 and the second transmission gear 2223 mesh with each other, and the driving motor 2221 can be directly arranged on the bottom of the vehicle body 1 . In this way, when the driving motor 2221 starts, it will drive the second transmission gear 2223 to rotate, and the second transmission gear 2223 drives the first transmission gear 2222 to rotate through gear transmission, thereby realizing the rotation of the axle where it is located, that is, the rotation of the walking wheel set .

For the whole traveling mechanism 2 in this embodiment, it includes a first wheel set 21 and a second wheel set 22, and the second wheel set 22 has a driving device, which is used as a power wheel set to drive the ingot moving trolley walk on its tracks. Of course, the running mechanism 2 is not limited to only including a first wheel set 21 and a second wheel set 22. Those skilled in the art should be able to imagine that the running mechanism 2 can also A combination of a second wheel set 22 and a plurality of first wheel sets 21, a combination of a plurality of second wheel sets 22 and a first wheel set 21, a plurality of second wheel sets 22 and a plurality of first wheel sets 21 Combined or only include a plurality of second wheel sets 22, in the case of including a plurality of second wheel sets 22, the plurality of second wheel sets 22 should be driven synchronously. The structure and working principle of the first wheel set and the second wheel set are the same as above, the arrangement of multiple first wheel sets and the second wheel set can also be deduced by those skilled in the art based on general professional knowledge, so it will not be discussed here Let me repeat. The structural design of multiple wheel sets can increase the load capacity of the ingot transport trolley.

Please refer to Figure 4 below, which is a schematic diagram of the rotating mechanism of the ingot transport trolley of the present invention. The rotating mechanism 3 is arranged on the car body 1, and is mainly used to carry forgings such as steel ingots and rotate and position them. As shown in the figure, the rotating mechanism 3 mainly includes: rotary support 31, rotary table 32, rotary drive 33 and rotary encoder structure 34, wherein the rotary support 31 includes an inner ring 311 and an outer ring 312, the inner ring 311 is fixed on the car body 1, and the outer ring 312 It is sleeved on the outside of the inner ring 311 and can rotate relative to the inner ring 311. The further specific structure of the slewing support 31 is well known in the art, and will not be repeated here; the turntable 32 is set on the outer ring 312 of the slewing support , the rotary table 32 can carry forgings such as steel ingots; the rotary drive 33 is connected to the outer ring 312 of the rotary support and can drive and brake the rotation of the outer ring 312; the rotary encoder structure 34 is installed on the car body 1 and the rotary table 32 above, used to detect the rotation angle of the turntable 32, and feed back the signal to the turntable drive 33, and the turntable drive 33 controls the rotation of the turntable 32 and stops at any angle according to the feedback signal.

Please continue to refer to Figure 4, the turntable 32 further includes a base body 321, a bearing platform 322, a transmission shaft 323 and a pressure spring 324, wherein the base body 321 is fixed to the outer ring 312 and can rotate with the outer ring 312, and the base body 321 is cylindrical , the middle part is vertically provided with a through hole 3211, and the lower part of the base body 321 protrudes outwards with a circle of extension part 3212. The opening of the 3213 faces upwards. The carrying platform 322 has a platform portion 3221 for carrying forged parts such as steel ingots. The middle part of the platform portion 3221 is provided with a rotating shaft 3222 downward. A platform guide sleeve 3223 is provided at the position opposite to the base guide sleeve 3213 on the lower surface, and the opening of the platform guide sleeve 3223 faces downward. The transmission shaft 323 is arranged vertically, one end of which is matched to be inserted in the base guide sleeve 3213, and the other end is matched to be inserted into the platform guide sleeve 3223, so that when the base body 321 rotates with the outer ring 312, the The shaft 323 drives the platform portion 3221 to rotate together, thereby driving the entire bearing platform 322 to rotate. A plurality of pressure springs 324 are vertically arranged between the platform part 3221 and the extension part 3212, which are mainly used for buffering the load when the steel ingot is placed on the carrying platform 322, so as to avoid damage to the lower part equipment due to excessive load. The arrangement and distribution of the springs 324 are not specifically limited, but considering the best load buffering performance, a plurality of pressure springs 324 can be distributed to form a circle and arranged between the platform portion 3221 and the extension portion 3212 .

The slewing drive 33 is connected to the outer ring 312 of the slewing support and can drive the outer ring 312 to rotate. The slewing drive 33 can be selected as a servo motor, and can rotate forward and reverse, and has a precise angular positioning function, so that the turntable 32 can be realized The rotation and precise positioning of the steel ingots carried on it.

The rotary encoder structure 34 is used to detect the rotation angle of the turntable 32, and feeds back the signal to the rotary drive 33. The rotary encoder structure 34 has an encoder rotating shaft 341 and an encoder 342, and the encoder rotating shaft 341 is coaxially connected to the rotating shaft 3222 and can rotate coaxially therewith. For example, the two can be connected by a shaft coupling. The encoder 342 is fixed on the car body 1. The encoder 342 can convert the rotation angle of the encoder rotating shaft 341 into an electrical signal and feed back To the rotary drive 33, the rotary drive 33 outputs the speed and torque according to the electric signal, so that the rotation of the rotary table 32 at any angle and the precise stop can be controlled, thereby realizing the rotation of the steel ingot forging on the rotary table 32 and the precise rotation of any angle. stop. The details about the structure and function realization of the rotary encoder are relatively mature technologies in this field, and will not be repeated here.

Please refer to Figure 5 and the above-mentioned figures below to illustrate the working principle of the utility model ingot transport trolley, wherein Figure 5 is a schematic diagram of the application of the utility model ingot transport trolley. Intersect with the existing manipulator track, preferably vertically. The predetermined trolley track 200 is provided with a gap to accommodate the steel rail of the manipulator track.

The ingot transporting trolley 100 is set on the ingot transporting trolley track 200, and the traveling mechanism 2 drives the car body to walk along the track. When the traveling mechanism 2 crosses the track gap of the ingot transporting trolley track 200, in view of the possible slipping phenomenon, the utility model A good solution is provided. Taking the preferred embodiment described above as an example, the running gear has a first wheel set 21 and a second wheel set 22. When the first wheel set 21 walks to the track gap, due to the second The wheel group 22 is also walking on the track, by the driving of the second wheel group 22, the first wheel group 21 can be driven to cross the track gap. Connected with connecting rod 221, so when one of the walking wheel sets slips across the track gap, the other walking wheel sets are still walking on the track normally, so the walking wheel set with slipping phenomenon can be driven by the connecting rod 221 to cross the track gap , so that the whole second wheel set 22 can normally pass through the track gap.

The steel ingot is placed on the turntable 32, and the pressure spring 324 produces a load buffering effect to prevent the steel ingot from being overloaded and damaging the lower parts. When the ingot transport trolley 100 transports the steel ingot to the track position of the manipulator, the rotary mechanism 3 operates, and the rotary drive 33 drives the rotary table 32 to rotate through the rotary support 31, and the steel ingot carried on the rotary table 32 also rotates accordingly, and at the same time, the rotary encoder structure 34 detects the rotation angle and speed of the turntable 32 and sends the feedback signal to the turntable drive 33, and then the turntable drive 33 controls the precise rotation of the turntable 32 and the stop at any angle, so as to realize the control of the steel ingots carried on the turntable 32 The precise rotation and stop at any angle, after the rotation to the ideal position, the steel ingot is clamped by the manipulator.

After the manipulator completes the clamping operation of the steel ingot, the ingot transport trolley 100 exits the track of the manipulator driven by the traveling mechanism 2. Its operation process and principle are the same as when the ingot transport trolley 100 feeds materials, and will not be repeated here.

After the above-mentioned steps, the whole process of feeding the ingot trolley 100 is completed. With the help of the ingot trolley 100 of the present invention, fast loading of forged parts can be realized, and the working efficiency of the forging equipment and process can be effectively improved.

The above descriptions are only illustrative specific implementations of the present utility model, and are not intended to limit the scope of the present utility model. Any equivalent changes and modifications made by those skilled in the art without departing from the concept and principles of the present invention shall fall within the protection scope of the present invention.

Claims (11)

1. an ingot dolly is characterized in that, described ingot dolly is located on the ingot trolley track, and described ingot trolley track and manipulator track intersect, and described ingot dolly comprises:

Car body;

Drive the walking mechanism that described ingot dolly is walked on the ingot trolley track, be arranged at described car body bottom;

Be used to carry and rotate the rotating mechanism of location forge piece, be located on the described car body.

2. ingot dolly according to claim 1 is characterized in that, described walking mechanism comprises:

First set of wheels, described first set of wheels comprises a plurality of walking wheels again, described walking wheels further comprise an axletree and are installed on the wheel at described axletree two ends, described axletree is installed in described car body bottom, parallel being set up in parallel of a plurality of described walking wheels, the described wheel of a side offers the guide groove that is used to be installed with the ingot trolley track in a plurality of described walking wheels on wheel face;

Second set of wheels comprise a plurality of described walking wheels, and the wheel of described a plurality of walking wheels homonymies interconnects by connecting rod; Drive unit connects and drives wherein a group of described a plurality of walking wheels.

3. ingot dolly according to claim 2 is characterized in that, described drive unit comprises:

Drive motors is arranged at described car body bottom;

First travelling gear is arranged on the axletree of a road wheel group in described second set of wheels;

Second travelling gear is arranged at the output shaft of described drive motors, and described second travelling gear and first travelling gear are meshing with each other.

4. ingot dolly according to claim 2 is characterized in that described connecting rod is horizontally disposed with, and the one end can rotate is connected in a lateral wheel in the road wheel group, and the outside that is connected in homonymy wheel in the adjacent walking wheels that the other end can rotate.

5. ingot dolly according to claim 1 is characterized in that, described walking mechanism comprises a plurality of second set of wheels, and described second set of wheels comprises again:

A plurality of walking wheels, described walking wheels further comprise an axletree and are installed on the wheel at described axletree two ends, described axletree is installed in described car body bottom, parallel being set up in parallel of a plurality of described walking wheels, the described wheel of a side offers the guide groove that is used to be installed with the ingot trolley track in a plurality of described walking wheels on wheel face, and the wheel of described a plurality of walking wheels homonymies interconnects by connecting rod;

Drive unit connects and drives wherein a group of described a plurality of walking wheels.

6. ingot dolly according to claim 1 is characterized in that, described rotating mechanism comprises:

Revolution is supported, and comprises inner ring and outer ring, and described inner ring is fixedly arranged on the described car body, and described outer ring is sheathed on the described inner ring outside and can rotates by described relatively inner ring;

Be used to carry the panoramic table of forge piece, be arranged at described revolution and support on the outer ring;

Revolution drives, and the outer ring that is connected in described revolution support also can drive and brake the rotation of described outer ring;

Be used to detect the anglec of rotation of described panoramic table, and feed back signal to the rotary encoder structure that described revolution drives, be installed on described car body and the panoramic table.

7. ingot dolly according to claim 6 is characterized in that, described panoramic table comprises:

Matrix, for cylindric, its middle part vertically offers through hole, and described matrix underpart outwards convexes with a circle epitaxy part, and described this epitaxy part is fixedly arranged on the described outer ring, and described epitaxy part is provided with a matrix guide pin bushing, and the perforate of described matrix guide pin bushing is towards the top;

Carrying platform, has a platform part that is used to carry forge piece, the middle part of described platform part is provided with a rotating shaft downwards, described rotating shaft is inserted in the through hole of described matrix, the position that described platform part lower surface is relative with described matrix guide pin bushing is provided with the platform guide pin bushing, and the perforate of described platform guide pin bushing is towards the below;

Power transmission shaft, end cooperation is inserted in the described matrix guide pin bushing, and other end cooperation is inserted in the described platform guide pin bushing;

A plurality of compression springs vertically are arranged between described platform part and the described epitaxy part.

8. ingot dolly according to claim 7 is characterized in that, a plurality of described compression springs distribute between described platform part and described epitaxy part and form circle.

9. ingot dolly according to claim 6 is characterized in that, described revolution drives and is servomotor.

10. ingot dolly according to claim 6 is characterized in that described coder structure comprises the encoder rotating shaft, and described encoder rotating shaft coaxle is connected in described rotating shaft also can coaxial thereupon rotation.

11. ingot dolly according to claim 1 is characterized in that, described ingot dolly is provided with near switch.

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