CN110937347A - Simple automatic walking transport trolley and application thereof - Google Patents
Simple automatic walking transport trolley and application thereof Download PDFInfo
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- CN110937347A CN110937347A CN201911382411.0A CN201911382411A CN110937347A CN 110937347 A CN110937347 A CN 110937347A CN 201911382411 A CN201911382411 A CN 201911382411A CN 110937347 A CN110937347 A CN 110937347A
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- 229910052742 iron Inorganic materials 0.000 claims description 21
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- 230000006872 improvement Effects 0.000 abstract description 2
- 239000002994 raw material Substances 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 9
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- 238000009826 distribution Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 2
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- 238000004519 manufacturing process Methods 0.000 description 2
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G35/00—Mechanical conveyors not otherwise provided for
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G43/00—Control devices, e.g. for safety, warning or fault-correcting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G2203/00—Indexing code relating to control or detection of the articles or the load carriers during conveying
- B65G2203/02—Control or detection
- B65G2203/0266—Control or detection relating to the load carrier(s)
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Abstract
The invention discloses a simple automatic walking transport trolley and application thereof, wherein the simple automatic walking transport trolley comprises a trolley frame, rollers, an inductive switch, a power supply and a control system, wherein the rollers are arranged at the bottom of the trolley frame; the inductive switch is fixed at the front end of the frame; the control system comprises a controller, a servo motor and a starting switch; the controller is used for receiving signals of the induction switch and controlling the start and stop of the servo motor; the starting switch is fixed at the rear end of the frame; the front end of the frame is provided with a fixed guide device, and the rear end of the frame is provided with an adjusting guide device; the distance from the adjusting guide device to the right side of the frame is equal to the distance from the fixed guide device to the right side of the frame; the guide device comprises a fixed rod and a guide piece; the upper end of the fixed rod is fixed with the bottom of the frame, and the lower end of the fixed rod is fixed with the guide piece. The invention has the advantages of compact structure, raw material saving, operation stability improvement and the like.
Description
Technical Field
The invention relates to the technical field of delivery vehicles, in particular to a simple automatic walking transport trolley and application thereof in an engine assembly line.
Background
The engine can carry out SPS distribution of materials before assembly, and in the distribution process, in order to ensure that the engine and the material trolley can be correspondingly and circularly assembled one by one, the distribution of the engine materials needs a simple and convenient automatic walking transport tool. When the common material trolley is used for manual push-pull feeding at present, the dislocation of the single material trolley for line side distribution and the online engine is easily caused, the walking of post workers is caused to take materials and miss assembly parts, and the production efficiency and the product quality control are influenced.
The above background disclosure is only for the purpose of assisting understanding of the concept and technical solution of the present invention and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.
Disclosure of Invention
The invention aims to provide an automatic walking transport vehicle which is compact in structure, saves raw materials and improves operation stability.
Preferably, the invention can also have the following technical features:
a simple automatic walking transport trolley comprises a trolley frame, rollers, an inductive switch, a power supply and a control system, wherein the rollers are arranged at the bottom of the trolley frame; the inductive switch is fixed at the front end of the frame; the control system comprises a controller, a servo motor and a starting switch; the controller is used for receiving signals of the induction switch and controlling the start and stop of the servo motor; the starting switch is fixed at the rear end of the frame; the front end of the frame is provided with a fixed guide device, and the rear end of the frame is provided with an adjusting guide device; the distance from the adjusting guide device to the right side of the frame is equal to the distance from the fixed guide device to the right side of the frame; the guide device comprises a fixed rod and a guide piece; the upper end of the fixed rod is fixed with the bottom of the frame, and the lower end of the fixed rod is fixed with the guide piece.
The bicycle frame further comprises a fixing plate, wherein one end of the fixing plate is fixed with the right side of the bicycle frame, and the other end of the fixing plate is connected with the fixing rod; the guide is a bearing.
Furthermore, the fixing rod comprises a cylinder and a screw rod, the screw rod is sleeved with a matched nut, the upper end of the screw rod is in threaded connection with the cylinder, and the lower end of the screw rod is used for fixing the bearing; the upper end of the cylinder body is fixedly connected with the frame.
Further, the structure of the fixing guide is the same as that of the adjusting guide.
Furthermore, the adjusting and guiding device also comprises a spring and a servo cylinder, wherein the upper end of the spring is fixed at the bottom of the frame, and the lower end of the spring is fixed on the upper end surface of the cylinder; the servo cylinder is horizontally fixed on the right side of the frame, and the end part of a telescopic rod of the servo cylinder is connected with the barrel; and the servo cylinder is in signal connection with the controller.
Furthermore, the guide piece is a guide wheel and comprises a base, an iron ball and a limiting device, and the top surface of the base is fixedly connected with the lower end of the screw rod; the base is a square block, two opposite end faces of the base are provided with U-shaped grooves, and the whole base is of an I-shaped structure; screw holes penetrating through the upper side wall and the lower side wall of the U-shaped groove are formed in two ends of the base, and the screw holes are perpendicular to the side walls of the U-shaped groove; the limiting device is arranged in the screw hole; the iron ball is positioned in the U-shaped groove through a limiting device.
Furthermore, the limiting device comprises a sleeve and a limiting bearing, the sleeve is in threaded connection with the screw hole, a counter bore is formed in the lower end face of the sleeve, and the limiting bearing is installed in the counter bore; the centers of the screw hole, the counter bore and the limiting bearing are coaxial.
The application of the simple automatic walking transport trolley on the engine assembly line comprises the following steps:
starting: laying a guide rail groove at the side of an engine assembly line, arranging a stopping point of a trolley on the guide rail groove, moving the trolley to the position right above the guide rail groove, rotating a screw rod for adjusting a guide device and fixing the guide device, and locking a nut to limit the rotation of the screw rod after a bearing is adjusted to the guide rail groove; pressing a start button of a start switch, stopping the trolley after the trolley travels to a stop point along the guide rail groove, flashing a yellow warning lamp on the trolley, pressing the start button again, continuing to travel the trolley, and flashing a green warning lamp on the trolley;
obstacle recognition: after the trolley starts to run, when the inductive switch senses that an obstacle exists in front of the running trolley, the inductive switch sends a signal to the controller, the controller controls the servo motor to stop, the trolley stops, and a red warning lamp on the trolley flickers; when the inductive switch senses that the front barrier is cleared, the inductive switch sends a signal to the controller, the controller controls the servo motor to rotate, the trolley automatically runs and moves forward, and a green warning lamp on the trolley flickers;
turning the trolley: the turning angle of the trolley on the guide rail groove is adjusted by the ratio of the width of the guide rail groove to the diameter of the bearing.
The upper end of the spring is fixed at the bottom of the frame, and the lower end of the spring is fixed on the upper end surface of the cylinder; the servo cylinder is horizontally fixed on the right side of the frame, and the end part of a telescopic rod of the servo cylinder is connected with the barrel; and the servo cylinder is in signal connection with the controller.
Further, the vehicle turning control: signal strips are respectively arranged at the inlet and the outlet of the turning area of the guide rail groove; when the trolley turns right, the signal strip at the inlet of the turning area is sensed before the trolley turns, the controller receives the signal of the sensing switch on the signal strip and then controls the servo cylinder to extend, the cylinder body is pushed to the left side of the frame, the spring bends, when the trolley drives the turning area, the controller senses the signal strip at the outlet, the controller receives the signal of the sensing switch on the signal strip and then controls the servo cylinder to contract, the cylinder returns to the initial position, and the spring returns to the positive position; on the contrary, when the trolley turns left, the signal strip at the inlet of the turning area is sensed before the trolley turns, the controller receives the signal of the sensing switch to the signal strip and then controls the servo cylinder to contract, the cylinder is pushed to the right side of the frame, the spring is bent, when the trolley drives to the outlet of the turning area, the signal strip at the outlet is sensed by the controller, the controller receives the signal of the sensing switch to the signal strip and then controls the servo cylinder to contract, the cylinder returns to the initial position, and the spring returns to the right position.
Compared with the prior art, the invention has the advantages that: 1) through automatic control, the automation degree of the trolley for transporting materials is improved, and the labor intensity of operators is reduced; 2) by arranging the inductive switch, obstacles can be prevented from being found in time in the advancing process of the trolley, the servo motor is stopped to rotate by using the controller, and the trolley is prevented from colliding with the obstacles; 3) a driving wheel is arranged to drive the trolley, so that the problem of material is solved; 4) the spring is arranged on the guide device, so that the turning angle of the trolley is increased by utilizing the elastic stretching characteristic of the spring, and meanwhile, the effect of buffering impact can be achieved, so that the trolley moves forward more stably; 5) the iron balls are clamped in the two horizontally arranged limiting bearings, and the resistance of the horizontal rotation of the iron balls is reduced while the limiting bearings rotate in the horizontal direction, so that the iron balls tend to rotate in the horizontal direction when the trolley moves forwards, and the requirement of the trolley for moving forwards is met; moreover, even if the fixed rod or the screw rod is impacted and inclined, the iron ball can still normally rotate, and the trolley cannot be influenced by moving forwards.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic structural view of an adjustment guide device according to embodiment 2 of the present invention.
Fig. 3 is a perspective view of a fixing plate of the present invention.
Fig. 4 is a schematic structural view of a guide member according to embodiment 3 of the present invention.
Fig. 5 is a top view of fig. 4.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description and accompanying drawings. It should be emphasized that the following description is merely exemplary in nature and is not intended to limit the scope of the invention or its application.
Non-limiting and non-exclusive embodiments will be described with reference to the following figures, wherein like reference numerals refer to like parts, unless otherwise specified.
The simple automatic walking transport trolley shown in fig. 1-3 comprises a trolley frame 5, 4 rollers fixed at the bottom of the trolley frame 5, an inductive switch 2 installed on the trolley frame 5, and a control system. The control system comprises a controller 4, a battery 6, a servo motor and a start switch 3. A power box is arranged at the right side of the vehicle frame 5, and the battery 6 and the controller 4 are fixed in the power box through bolts. The servo motor fixes the outer side of the power box through a bolt. The starting switch 3 is fixed at the rear end of the frame 5 through a vertical frame, so that an operator can conveniently operate a button on the starting switch 3. The front end of the frame 5 is provided with the inductive switch 2, so that whether an obstacle exists in front of the running path of the trolley can be sensed in time. The battery 6 is used as a power supply to supply power for the inductive switch 2, the starting switch 3 and the servo motor. The controller controls the servo motor to start or stop by receiving the signal of the inductive switch 2, thereby achieving the purpose of controlling the driving state of the trolley. When the inductive switch 2 induces that an obstacle exists in front of the running of the trolley, the inductive switch 2 sends a signal to the controller 4, and then the controller 4 controls the servo motor to brake; after the inductive switch 2 induces that the obstacles in front are cleared, the inductive switch 2 sends a signal to the controller 4, the controller 4 controls the servo motor to rotate, and the trolley automatically runs and moves forward. Through automatic control, improve the degree of automation of dolly transportation material, alleviate operation workman's intensity of labour.
More specifically, the starting switch 3 comprises three functional buttons of starting, stopping and speed regulating. When the trolley needs to be used, manually pressing a starting button to adjust the trolley into a starting state, and enabling the trolley to move forwards along the guide rail groove in the starting state; in the running process of the trolley, when an obstacle is in front of the guide rail groove, the running state of the trolley is controlled by controlling whether the motor is electrified or not through the controller, and the running speed of the trolley can be adjusted through the speed regulating button; when the trolley is used or cannot be used for a long time, the stop button is pressed, and in the state, the battery of the trolley cuts off the power supply to each load.
One 1 of the 4 rollers is used as a driving wheel 7, the driving wheel 7 is driven by a servo motor to rotate, and the other 3 rollers are common rollers 9 and rotate along with the driving wheel 7. The front end and the rear end of the frame 5 are also provided with the connecting mechanisms 1 so as to facilitate dragging by using other tools or pulling other objects by using a trolley.
In order to ensure that the trolley travels along a certain track, a guide rail groove is laid on the ground beside the production line, and a guide device is arranged at the bottom of the frame 5, so that the trolley can move along the travel of the guide rail groove through the guide device. The guiding device comprises a fixed guiding device and an adjusting guiding device 8, the fixed guiding device is fixed at the front end of the frame 5 through a bolt, and the adjusting guiding device 8 is fixed at the rear end of the frame. The adjusting guide device 8 comprises a fixing rod 89, a bearing 81 and a fixing plate 82. The upper end of the fixed rod 89 is welded and fixed with the bottom of the frame 5, the lower end of the fixed rod 89 is fixed with the bearing 81, the left end of the fixed plate 82 clamps the middle part of the fixed rod 89, and the right end of the fixed plate is fixed on the right side of the frame 5 through a bolt, so that the rigidity of the fixed rod 89 is enhanced. In order to ensure that the trolley can smoothly run, the diameter of the bearing 81 is smaller than the width of the guide rail groove, and the turning angle of the trolley is adjusted by controlling the diameter ratio of the width of the guide rail groove to the diameter of the bearing 81.
Further, the fixing rod 89 includes a cylinder 85, a screw 84, and a nut 87 screwed into the screw 84. The inner hole of the cylinder 85 is provided with a thread matched with the screw 84, the inner hole of the bearing 81 is fixed at the lower end of the screw 84, the upper end of the screw 84 is screwed into the cylinder 85, and the lower end of the cylinder 85 is propped against by the nut 87 to limit the rotation of the screw 84. After the trolley is used, the screw 84 is screwed into the cylinder 85, so that the lower end of the bearing 81 is higher than the ground. When the trolley needs to be used, the trolley is adjusted to be above the guide rail groove, then the screw rod 84 is rotated, the bearing 81 is guided into the proper position of the guide rail groove, and the upper nut 87 of the screw rod 84 is locked, so that the phenomenon that the horizontal height of the bearing 81 is changed due to vibration rotation of the screw rod 84 in the using process to influence the use of the trolley is avoided. The distance from the adjusting guide 8 to the right side of the vehicle frame 5 is equal to the distance from the fixing guide to the right side of the vehicle frame 5.
The turning angle of the trolley on the guide rail groove is adjusted by the ratio of the width of the guide rail groove to the diameter of the bearing 81, and several embodiments of the guide device are explained below.
Example 1
In this embodiment, the adjusting guide 8 and the fixing guide have the same structure. If the fixing guide device comprises a second fixing rod, a second bearing and a second fixing plate; the second fixing rod comprises a second cylinder and a second screw, and a second nut matched with the second screw is screwed into the second screw. The sizes and the connection relations of all the parts are the same as those of the adjusting and guiding mechanism.
Example 2
In embodiment 1, since the adjusting guide device 8 and the fixed guide device have the same structure, and both can not adjust the position relationship during use to obtain a more beneficial solution for turning, the width of the guide rail groove is generally 20-30mm larger than the diameter of the bearing 81 to meet the turning requirement of the trolley. If the distance between the bearing 81 and the two sides of the guide rail groove is smaller, the turning angle of the trolley is reduced; if the distance between the bearing 81 and the two sides of the guide rail groove is large, the running process of the trolley is unstable, the bearing 81 impacts the inner side of the guide rail groove back and forth to aggravate the whole trolley to shake, and parts on the trolley are shaken. For this reason, the present embodiment further improves the adjustment guide 8 provided at the rear end of the vehicle body frame 5. Referring to fig. 2 specifically, the adjusting and guiding device 8 further includes a spring 86 with a diameter of 30-38mm, and a servo cylinder 83, and the fixing plate 82 is provided with a long groove 82-1 matching with the outer diameter of the cylinder 85, and the cylinder 85 is in clearance fit with the long groove 82-1 and can move along the length direction of the long groove 82-1. The upper end of the spring 86 is fixed to the bottom of the frame 5, and the lower end is fixed to the upper end surface of the cylinder 85. The spring 86 is used as a link for connecting the adjusting guide 8 and the frame 5, and at the same time, because the length direction of the long groove 82-1 on the fixing plate 82 is the same as the width direction of the guide rail groove, the adjusting guide 8 can swing in the long groove of the fixing plate 82 through the spring 86, thereby adjusting the position of the adjusting guide 8. The servo cylinder 83 is horizontally arranged on the character fixing plate 82, the end part of the telescopic rod of the cylinder is fixedly connected with the cylinder 85, and the controller 4 is used for controlling the telescopic displacement of the servo cylinder 83. The position of the telescopic rod telescopic displacement adjusting bearing 81 through controlling the servo cylinder 83 can improve the turning angle of the trolley and reduce the width of the guide rail groove. In the technical scheme, signal strips are arranged at the bottoms of an inlet and an outlet of a turning area of a guide rail groove. When the trolley is about to enter a turning zone, the trolley passes through a signal strip at an inlet of the turning zone, the inductive switch 2 at the front end of the frame senses the signal strip and sends a signal to the controller, and the controller 4 controls the servo cylinder 83 to extend or contract.
The technical scheme is an application example of adjusting the turning angle of the trolley by controlling the servo cylinder 83 to stretch. When the trolley turns right, a signal strip at an inlet of a turning area is sensed before the trolley turns, the controller 4 receives a signal of the sensing switch 2 for the signal strip and then controls the servo cylinder 83 to extend, the barrel 85 is pushed to the left side of the frame 5, the spring 86 bends, when the trolley exits from an outlet of the turning area, the trolley senses the signal strip at the outlet, the controller 4 receives a signal of the sensing switch 2 for the signal strip and then controls the servo cylinder 83 to contract, the cylinder 83 returns to an initial position, and the spring 86 returns to a positive position; on the contrary, when the trolley turns left, the controller 4 controls the servo cylinder 83 to contract when sensing the signal strip at the inlet of the turning area before the trolley turns, the cylinder 85 is pushed to the right side of the frame 5, the spring 86 bends, when the trolley exits from the outlet of the turning area, the controller 4 controls the servo cylinder 83 to contract when sensing the signal strip at the outlet, the cylinder 83 returns to the initial position, and the spring 86 returns to the positive position.
The technical scheme of the embodiment can enlarge the turning angle of the trolley by changing the position of the bearing 81, thereby controlling the width of the guide rail groove to be less than 10mm larger than the diameter of the bearing 81, achieving the turning effect of the embodiment 1, reducing the width of the guide rail groove, reducing the cost, reducing the impact force of the bearing 81 on the inner side of the guide rail groove, and enabling the running process of the trolley to be more stable.
Example 3
In a further modification of embodiment 2, when the bearing 81 is used as a guide for guiding, the bearing 81 must be in a horizontal state, if the fixing rod 89 or the screw 81 or other components are impacted to make the bearing 81 incline upwards or downwards, the bearing 81 will be separated upwards or downwards when contacting with the side wall of the guide rail groove, and not only the guiding capability of the bearing 81 is affected, but also the advancing speed of the trolley is affected. Therefore, a ball-type guide wheel is designed as a guide instead of the bearing 81. Referring to fig. 4-5 in particular, the guide wheel comprises a base 14, an iron ball 10 and a limiting device, wherein the top surface of the base 14 is welded with the lower end of a screw 81. The base 14 is a square block, and two opposite end surfaces of the base are provided with U-shaped grooves 15, so that the base 14 is in an I-shaped structure. Screw holes 16 penetrating through two side walls of the U-shaped groove 15 are formed at two ends of the base 14, and the screw holes 16 are perpendicular to the side walls of the U-shaped groove 15. The limiting device is arranged in the screw hole 16, the iron ball 10 is arranged in the opening of the U-shaped groove 15, and the limiting device is used for fixing. The limiting device comprises a sleeve 12 and a limiting bearing 13, wherein threads are arranged on the outer side of the sleeve 12, a counter bore 17 is formed in the lower end face of the sleeve, and the limiting bearing 13 is installed in the counter bore 17. The side walls of the U-shaped groove 15 are also provided with horizontally oriented screw holes 18, and locking screws for locking the sleeve 12 in the screw holes 16 are also provided in the horizontally oriented screw holes 18. The sleeve 12 is screwed into the screw hole 16, and at the moment, the screw hole 16, the counter bore 17 and the limit bearing 13 are coaxial in center. The iron ball 10 is placed on the limiting bearing 13 at the lower part, then the sleeve 12 is rotated, the upper and lower limiting bearings 13 are used for clamping the iron ball 10, and the screw hole 16, the counter bore 17, the limiting bearing 13 and the iron ball 10 are coaxial in center. Although the rotation direction of iron ball 10 is unrestricted, this technical scheme is through pressing from both sides iron ball 10 in the spacing bearing 13 of two level settings, and spacing bearing 13 rotates in the horizontal direction, can reduce the horizontal pivoted resistance of iron ball 10 to make the dolly when advancing, iron ball 10 more tends to do the horizontal direction and rotates, accords with the demand that the dolly advanced. Moreover, even if the fixing rod 89 or the screw 81 or other components are impacted to incline the bearing 81, the iron ball 10 can still normally rotate, and the forward movement of the trolley is not influenced.
According to the further improvement of the technical scheme, a limiting piece 11 with the radian identical to that of the iron ball 10 is fixed on the end face of the inner ring of the limiting bearing 13, and the limiting bearing 13 is in contact with the iron ball through the limiting piece 11. The bottom surface of the U-shaped groove 15 is in contact with the iron ball 10.
The application of the simple automatic walking transport trolley on the engine assembly line comprises the following steps:
starting: after the trolley is assembled, a stopping point of the trolley and an inlet signal strip of a turning area are arranged in the guide rail groove, the trolley is moved right above the guide rail groove, the adjusting guide device 8 and the screw 84 of the fixing guide device are rotated, and the screw 84 is limited by the locking nut 87 after the bearing 81 is adjusted to the guide rail groove; pressing start switch 3's start button, the dolly is stopped after advancing to the stop point along the guide rail groove, has yellow warning light scintillation on the car, presses start button once more, and the dolly continues to advance, has green warning light scintillation on the car.
Obstacle recognition: after the trolley starts to run, when the inductive switch 2 senses that an obstacle exists in front of the running trolley, the inductive switch 2 sends a signal to the controller 4, the controller 4 controls the servo motor to stop, the trolley stops, and a red warning lamp on the trolley flickers; after the barrier in the place ahead was driven in induction switch 2 induction, induction switch 2 sent a signal to controller 4, and controller 4 control servo motor rotates, and dolly automatic operation gos forward, has green warning light scintillation on the car.
Controlling the turning of the trolley: when the trolley turns right, a signal strip at the inlet of a turning area is sensed before the trolley turns, the controller 4 receives a signal of the sensing switch 2 for the signal strip and then controls the servo cylinder 83 to extend, the barrel 85 is pushed to the left side of the frame 5, the spring 86 bends, when the trolley drives to turn at the outlet, the controller 4 senses the signal strip at the outlet, the controller 4 receives a signal of the sensing switch 2 for the signal strip and then controls the servo cylinder 83 to contract, the cylinder 83 returns to the initial position, and the spring 86 returns to the positive position; on the contrary, when the trolley turns left, the controller senses the signal strip at the inlet of the turning area before the trolley turns, the controller receives the signal of the sensing switch 2 to the signal strip and then controls the servo cylinder 83 to contract, the cylinder 85 is pushed to the right side of the frame 5, the spring 86 bends, when the trolley drives the turning area to exit, the controller receives the signal of the sensing switch 2 to the signal strip and then controls the servo cylinder 83 to contract, the cylinder 83 returns to the initial position, and the spring 86 returns to the positive position.
Those skilled in the art will recognize that numerous variations are possible in light of the above description, and therefore the examples and drawings are merely intended to describe one or more specific embodiments.
While there has been described and illustrated what are considered to be example embodiments of the present invention, it will be understood by those skilled in the art that various changes and substitutions may be made therein without departing from the spirit of the invention. In addition, many modifications may be made to adapt a particular situation to the teachings of the present invention without departing from the central concept described herein. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments and equivalents falling within the scope of the invention.
Claims (10)
1. The utility model provides a simple and easy automatic walking travelling bogie which characterized in that: the trolley comprises a trolley frame, a roller, an inductive switch, a power supply and a control system, wherein the roller is arranged at the bottom of the trolley frame; the inductive switch is fixed at the front end of the frame; the control system comprises a controller, a servo motor and a starting switch; the controller is used for receiving signals of the induction switch and controlling the start and stop of the servo motor; the starting switch is fixed at the rear end of the frame; the front end of the frame is provided with a fixed guide device, and the rear end of the frame is provided with an adjusting guide device; the distance from the adjusting guide device to the right side of the frame is equal to the distance from the fixed guide device to the right side of the frame; the guide device comprises a fixed rod and a guide piece; the upper end of the fixed rod is fixed with the bottom of the frame, and the lower end of the fixed rod is fixed with the guide piece.
2. A simple self-propelled wagon as defined in claim 1, wherein: the bicycle frame is characterized by further comprising a fixing plate, wherein one end of the fixing plate is fixed to the right side of the bicycle frame, and the other end of the fixing plate is connected with the fixing rod; the guide is a bearing.
3. A simple self-propelled wagon as defined in claim 2, wherein: the fixing rod comprises a barrel and a screw rod, a nut matched with the screw rod is sleeved on the screw rod, the upper end of the screw rod is in threaded connection with the barrel, and the lower end of the screw rod is used for fixing the bearing; the upper end of the cylinder body is fixedly connected with the frame.
4. A simple self-propelled wagon as defined in claim 3 wherein: the structure of the fixed guide device is the same as that of the adjusting guide device.
5. A simple self-propelled wagon as defined in claim 3 wherein: the adjusting and guiding device further comprises a spring and a servo cylinder, wherein the upper end of the spring is fixed at the bottom of the frame, and the lower end of the spring is fixed on the upper end face of the barrel; the servo cylinder is horizontally fixed on the right side of the frame, and the end part of a telescopic rod of the servo cylinder is connected with the barrel; and the servo cylinder is in signal connection with the controller.
6. A simple self-propelled wagon as defined in claim 1, wherein: the guide piece is a guide wheel and comprises a base, an iron ball and a limiting device, and the top surface of the base is fixedly connected with the lower end of the screw rod; the base is a square block, two opposite end faces of the base are provided with U-shaped grooves, and the whole base is of an I-shaped structure; screw holes penetrating through the upper side wall and the lower side wall of the U-shaped groove are formed in two ends of the base, and the screw holes are perpendicular to the side walls of the U-shaped groove; the limiting device is arranged in the screw hole; the iron ball is positioned in the U-shaped groove through a limiting device.
7. The simple self-propelled transportation trolley of claim 6, wherein: the limiting device comprises a sleeve and a limiting bearing, the sleeve is in threaded connection with the screw hole, a counter bore is formed in the lower end face of the sleeve, and the limiting bearing is installed in the counter bore; the centers of the screw hole, the counter bore and the limiting bearing are coaxial.
8. The use of a simple self-propelled travelling bogie as defined in claim 1 in an engine assembly line, wherein: the method comprises the following steps:
starting: laying a guide rail groove at the side of an engine assembly line, arranging a stopping point of a trolley on the guide rail groove, moving the trolley to the position right above the guide rail groove, rotating a screw rod for adjusting a guide device and fixing the guide device, and locking a nut to limit the rotation of the screw rod after a bearing is adjusted to the guide rail groove; pressing a start button of a start switch, stopping the trolley after the trolley travels to a stop point along the guide rail groove, flashing a yellow warning lamp on the trolley, pressing the start button again, continuing to travel the trolley, and flashing a green warning lamp on the trolley;
obstacle recognition: after the trolley starts to run, when the inductive switch senses that an obstacle exists in front of the running trolley, the inductive switch sends a signal to the controller, the controller controls the servo motor to stop, the trolley stops, and a red warning lamp on the trolley flickers; when the inductive switch senses that the front barrier is cleared, the inductive switch sends a signal to the controller, the controller controls the servo motor to rotate, the trolley automatically runs and moves forward, and a green warning lamp on the trolley flickers;
turning the trolley: the turning angle of the trolley on the guide rail groove is adjusted by the ratio of the width of the guide rail groove to the diameter of the bearing.
9. The use of a simple self-propelled travelling bogie as defined in claim 8 in an engine assembly line, wherein: the upper end of the spring is fixed at the bottom of the frame, and the lower end of the spring is fixed on the upper end surface of the barrel; the servo cylinder is horizontally fixed on the right side of the frame, and the end part of a telescopic rod of the servo cylinder is connected with the barrel; and the servo cylinder is in signal connection with the controller.
10. The use of a simple self-propelled travelling bogie as defined in claim 9 in an engine assembly line, wherein: controlling the turning of the trolley: signal strips are respectively arranged at the inlet and the outlet of the turning area of the guide rail groove; when the trolley turns right, the signal strip at the inlet of the turning area is sensed before the trolley turns, the controller receives the signal of the sensing switch on the signal strip and then controls the servo cylinder to extend, the cylinder body is pushed to the left side of the frame, the spring bends, when the trolley drives the turning area, the controller senses the signal strip at the outlet, the controller receives the signal of the sensing switch on the signal strip and then controls the servo cylinder to contract, the cylinder returns to the initial position, and the spring returns to the positive position; on the contrary, when the trolley turns left, the signal strip at the inlet of the turning area is sensed before the trolley turns, the controller receives the signal of the sensing switch to the signal strip and then controls the servo cylinder to contract, the cylinder is pushed to the right side of the frame, the spring is bent, when the trolley drives to the outlet of the turning area, the signal strip at the outlet is sensed by the controller, the controller receives the signal of the sensing switch to the signal strip and then controls the servo cylinder to contract, the cylinder returns to the initial position, and the spring returns to the right position.
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