A device and method for correcting the deviation and preventing rail gnawing of the trolley traveling of bridge and gantry cranes

Abstract

The present invention relates to the field of cranes, and particularly to a device for correcting the deviation and preventing rail gnawing of the trolley of a bridge or gantry crane, which includes a trolley wheel set and a deviation correction and rail gnawing prevention device. The deviation correction and rail gnawing prevention device is arranged on the trolley wheel set. The device for correcting the deviation and preventing rail gnawing of the trolley of the bridge or gantry crane of the present invention has a deviation correction and rail gnawing prevention device. When the trolley wheel set tilts, the deviation correction and rail gnawing prevention device can timely correct it, prevent the trolley wheel set from gnawing the rail due to inconsistent traveling speeds, effectively increase the service life of the trolley traveling wheels and the traveling rails, and at the same time effectively reduce potential safety hazards and prevent the trolley from derailing. After the correction is completed, the position of the trolley wheel set can be limited, which has a strong practical effect. The device has a simple and reasonable structure, a strong practical significance, strong applicability, and a low cost, which is conducive to popularization.

Description

Technical Field

[0001] The present invention belongs to the field of cranes, and particularly relates to a deviation correction and anti-rail gnawing device, and more particularly to a deviation correction and anti-rail gnawing device for the traveling of the trolley of a bridge or gantry crane. Background Art

[0002] A bridge crane is a lifting equipment that spans over workshops, warehouses, and yards for material hoisting. Since its two ends are seated on tall cement columns or metal brackets, it resembles a bridge. The bridge of the bridge crane runs longitudinally along the tracks laid on both sides of the elevated racks, and can make full use of the space under the bridge to hoist materials without being hindered by ground equipment. It is a kind of lifting machinery with the widest application range and the largest number. A bridge crane generally consists of a bridge, a lifting mechanism, a trolley, a traveling mechanism for the trolley, an operator's cab, a trolley current conducting device, a main power current conducting device of the crane, etc.

[0003] When the existing bridge crane trolley is running, since the large wheel sets on both sides of the main beam are driven by a single motor, the traveling speeds of the large wheel sets on both sides of the main beam will be different during traveling. The different traveling speeds of the large wheel sets on both sides will cause the trolley to deviate in position, resulting in rail gnawing. Rail gnawing will reduce the service life of the traveling wheels and the running rails of the trolley, and at the same time, there are relatively large potential safety hazards. Some existing anti-rail gnawing devices have high manufacturing costs and high selling prices, which are not conducive to popularization. Therefore, how to overcome the above existing technical problems and defects has become a key problem to be solved. Summary of the Invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a deviation correction and anti-rail gnawing device and a using method for the traveling of the trolley of a bridge or gantry crane, which can effectively solve the problems in the prior art such as the deviation of the trolley position caused by different traveling speeds of the large wheel sets, rail gnawing, reduction of the service life of the traveling wheels and the running rails of the trolley, relatively large potential safety hazards, high manufacturing costs and high selling prices of some existing anti-rail gnawing devices, and unfavorable promotion.

[0005] To achieve the above object, the technical solution of the present invention is: a deviation correction and anti-rail gnawing device for the traveling of the trolley of a bridge or gantry crane, including a large wheel set and a deviation correction and anti-rail gnawing device. The deviation correction and anti-rail gnawing device is arranged on the large wheel set. The large wheel set includes a frame, traveling wheels, traveling motors, and running rails. The traveling wheels are arranged at both ends of the frame. The traveling motors are arranged on the side of the frame. The traveling motors are connected to the traveling wheels through speed reducers. The traveling wheels travel on the running rails. The running rails are arranged on load-bearing high walls.

[0006] Further, the deviation rectifying and anti-rail gnawing device includes a sensor, a reset motor and a reset mechanism. The sensor is arranged on the side of the vehicle frame above the walking wheel, the reset motor is arranged at the middle position of the side of the vehicle frame, and the reset mechanism is arranged between the side of the vehicle frame and the load-bearing high wall.

[0007] Further, the walking motor is a reversible motor, the walking rail is an I-shaped walking rail, the walking motor is arranged inside the vehicle frame, and a buffer is also arranged on the vehicle frame above the walking wheel.

[0008] Further, the sensor is a distance sensor, the reset motor is a double-output-shaft reversible reduction motor, and the rotating shaft of the reset motor is connected to the vehicle frame through a shaft bracket.

[0009] Further, the reset mechanism includes a transmission mechanism and a reset device. The reset motor is connected to the reset device through the transmission mechanism. The transmission mechanism includes a transmission gear A, a worm, a transmission gear B, and a transmission gear C. The reset devices are symmetrically arranged on the outside of the vehicle frame. The transmission gear A and the transmission gear C are both arranged on the reset device. Worms are arranged on the rotating shafts on both sides of the reset motor. The left worm of the reset motor is in transmission connection with the transmission gear A, and the right worm is in transmission connection with the transmission gear B. The transmission gear B is meshed with the transmission gear C.

[0010] Further, the reset device includes a rotating seat, a threaded sleeve, a threaded rod and a walking seat. The rotating seat is arranged on the outside of the vehicle frame, the walking seat is arranged on the load-bearing high wall. The rotating seat is connected to the walking seat through the threaded sleeve and the threaded rod. A limit turntable is arranged at the right end of the threaded sleeve. A rotating groove adapted to the specification of the limit turntable is opened in the middle of the rotating seat. The threaded sleeve is rotatably arranged in the rotating groove in the middle of the rotating seat through the limit turntable at the right end. The left end of the threaded sleeve is threadedly connected to the threaded rod. A sliding block is arranged at the left end of the threaded rod. A limit groove is opened in the middle of the walking seat. The threaded rod is slidably arranged in the limit groove in the middle of the walking seat through the sliding block at the left end. The rotating seat includes two symmetrically arranged N-shaped buckles, and the N-shaped buckles are connected by a retaining bolt.

[0011] Further, the walking seat includes a limit buckle plate, a retaining plate and a reinforcing plate. The limit buckle plate is fixedly arranged on the right side of the retaining plate. The retaining plate is fixedly arranged on the load-bearing high wall. A reinforcing plate is arranged at the connecting angle between the limit buckle plate and the retaining plate. The reinforcing plate is connected to the limit buckle plate and the retaining plate by bolts. Columnar balls are also arranged inside the limit groove of the walking seat.

[0012] Further, the present invention also includes a method for using the deviation rectifying and anti-rail gnawing device for the trolley traveling of a bridge or gantry crane, which is realized based on the deviation rectifying and anti-rail gnawing device for the trolley traveling of a bridge or gantry crane, and includes the following steps:

[0013] Step 1: Install the deviation correction and anti-rail gnawing device on the side of the large wheel set at both ends of the crane main girder, and install the sensor on the side of the frame above the trolley wheel.

[0014] Step 2: When there is a deviation due to different traveling speeds of the trolleys on both sides of the main girder, the sensor located above the trolley wheel senses that the distances from the front and rear of the same large wheel set to the load-bearing wall are different. The sensor transmits the sensed data to the control system of the large wheel set. After the control system receives the measurement data of the two large wheel sets on both sides of the main girder, since the two large wheel sets have different traveling speeds at this time and their positions have deviated, the measurement data should be that the distance between the front sensor of one large wheel set and the load-bearing wall is less than the distance between the rear sensor and the load-bearing wall, and the distance between the front sensor of the other large wheel set and the load-bearing wall is greater than the distance between the rear sensor and the load-bearing wall. The control system then controls the traveling motor speed of the large wheel set on the side where the distance between the front sensor and the load-bearing wall is less than the distance between the rear sensor and the load-bearing wall to increase, so that the large wheel set on the side with a lagging position speeds up its traveling speed, thereby adjusting its position sensing and traveling speed.

[0015] Step 3: While correcting the deviation of the large wheel set, start the reset motor. The reset motor runs and drives the transmission gear A and the transmission gear B to rotate in the same direction through the worm. The rotation of the transmission gear A drives the thread sleeve to rotate. The rotation of the thread sleeve cooperates with the threaded rod to apply a lateral thrust to the front traveling wheel of the large wheel set on the side with a lagging position while the large wheel set is traveling. The rotation of the transmission gear B drives the thread sleeve to rotate. The rotation of the thread sleeve cooperates with the threaded rod to apply a lateral pulling force to the rear traveling wheel, so as to push and pull the position of the large wheel set back to its original position while it is traveling, thus completing the deviation correction.

[0016] Step 4: When the positions of the large wheel sets on both sides of the main girder are the same and the deviation correction is completed, start the reset motor to reverse. The reverse rotation of the reset motor drives the thread sleeve to rotate, so that the length of the threaded rod extending out of the thread sleeve is reset, making the lengths of the resetters on the front and rear sides of the large wheel set the same, and limiting the large wheel set during its travel, thereby preventing rail gnawing.

[0017] The beneficial effects of a trolley traveling deviation correction and anti-rail gnawing device for bridge and gantry cranes of the present invention:

[0018] The large vehicle traveling deviation correction and anti-rail gnawing device for bridge and gantry cranes of the present invention has a deviation correction and anti-rail gnawing device. The inclination angle of the large wheel sets on both sides of the main beam can be sensed by the sensors of the deviation correction and anti-rail gnawing device. When the sensors sense that the distances between the front and rear of the large wheel sets and the load-bearing wall are inconsistent, the reset motor is started. The operation of the reset motor drives the transmission gear A and the transmission gear B to rotate through the worm gears on both sides of the rotating shafts. The rotation of the transmission gear A drives the threaded sleeve at the transmission gear A to rotate. The rotation of the threaded sleeve cooperates with the threaded rod to push and pull and correct the position of the traveling wheels on the front side of the large wheel set. The operation of the transmission gear B drives the transmission gear C to rotate. The rotation of the transmission gear C drives the threaded sleeve at the transmission gear C to rotate. The rotation of the threaded sleeve cooperates with the threaded rod to push and pull and correct the position of the traveling wheels on the rear side of the large wheel set. Thus, while the large wheel set is traveling, an overall push and pull correction is performed on it. This device can timely correct the large wheel set through the deviation correction and anti-rail gnawing device when the large wheel set is tilted, prevent the large wheel set from gnawing the rail due to inconsistent traveling speeds, effectively increase the service life of the large vehicle traveling wheels and the traveling rails, and at the same time effectively reduce potential safety hazards and prevent the large vehicle from derailing. After the correction is completed, the position of the large wheel set can be limited, which has a strong practical effect. This device has a simple and reasonable structure, and at the same time has a strong practical significance, strong applicability, low cost, and is conducive to large-area promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is the front view structural schematic diagram of the large vehicle traveling deviation correction and anti-rail gnawing device for bridge and gantry cranes of the present invention;

[0020] Figure 2 is the side view structural sectional schematic diagram of the large vehicle traveling deviation correction and anti-rail gnawing device for bridge and gantry cranes of the present invention;

[0021] Figure 3 is the side view structural sectional schematic diagram of the reset device of the large vehicle traveling deviation correction and anti-rail gnawing device for bridge and gantry cranes of the present invention;

[0022] Figure 4 is the top view schematic diagram of the sensing position and sensing distance of the sensors of the large vehicle traveling deviation correction and anti-rail gnawing device for bridge and gantry cranes of the present invention after the large wheel set is offset.

[0023] In the figure:

[0024] 1 - large wheel set: 101 - vehicle frame, 102 - traveling wheel, 103 - traveling motor, 104 - traveling rail, 105 - speed reducer, 106 - buffer;

[0025] 2 - Deviation rectification and anti - rail gnawing device: 201 - Inductor, 202 - Reset motor, 203 - Reset mechanism, 204 - Axle support, 205 - Transmission mechanism, 206 - Resetter, 207 - Transmission gear A, 208 - Worm, 209 - Transmission gear B, 210 - Transmission gear C, 211 - Rotating seat, 212 - Threaded sleeve, 213 - Threaded rod, 214 - Traveling seat, 215 - Limit turntable, 216 - Rotating groove, 217 - Sliding block, 218 - Limit groove, 219 - N - type buckle plate, 220 - Limit buckle plate, 221 - Retaining plate, 222 - Reinforcing plate, 223 - Columnar ball;

[0026] 3 - Load - bearing high wall. Detailed implementation mode

[0027] The following combines the attached drawings and through specific implementation modes to make a more detailed description of a bridge and gantry crane trolley traveling deviation rectification and anti - rail gnawing device and its usage method of the present invention.

[0028] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention.

[0029] See Figure 1 , a bridge and gantry crane trolley traveling deviation rectification and anti - rail gnawing device, including a large wheel set 1 and a deviation rectification and anti - rail gnawing device 2. The bridge and gantry crane trolley traveling deviation rectification and anti - rail gnawing device of the present invention has a deviation rectification and anti - rail gnawing device. When the large wheel set is tilted, the deviation rectification and anti - rail gnawing device can timely correct it, prevent the large wheel set from gnawing the rail due to inconsistent traveling speeds, effectively extend the service life of the trolley traveling wheels and the traveling rails, and at the same time effectively reduce potential safety hazards and prevent the trolley from derailing. After the correction is completed, the position of the large wheel set can be limited, which has a strong practical effect. The device has a simple and reasonable structure, and at the same time has strong practical significance, strong applicability, low cost, and is conducive to large - area promotion. The deviation rectification and anti - rail gnawing device 2 is arranged on the large wheel set 1.

[0030] See Figure 1 , Figure 2, the large wheel set 1 includes a frame 101, traveling wheels 102, a traveling motor 103 and a traveling rail 104. The traveling wheels 102 are arranged at both ends of the frame 101, the traveling motor 103 is arranged on the side of the frame 101, the traveling motor 103 is connected to the traveling wheels 102 through a speed reducer 105, and the traveling motor and the speed reducer are used for the operation of the traveling wheels. The traveling wheels 102 travel on the traveling rail 104, and the traveling rail 104 is arranged on the load-bearing high wall 3, and the traveling rail is used to limit the traveling direction of the traveling wheels.

[0031] See Figure 1 、 Figure 2 , the traveling motor 103 is a reversible motor, the traveling rail 104 is an I-shaped traveling rail 104, the traveling motor 103 is arranged inside the frame 101, and a buffer 106 is further arranged on the frame 101 above the traveling wheels 102. The buffer is used to buffer the impact received when the large wheel set travels to the end of the traveling rail.

[0032] See Figure 1 、 Figure 2 、 Figure 4 , the deviation correction and anti-rail gnawing device 2 includes a sensor 201, a reset motor 202 and a reset mechanism 203. The sensor 201 is arranged on the side of the frame 101 above the traveling wheels 102, the reset motor 202 is arranged at the middle position on the side of the frame 101, and the reset motor is used to drive the reset mechanism to operate. The reset mechanism 203 is arranged between the side of the frame 101 and the load-bearing high wall 3. The sensor 201 is a distance sensor, and the distance sensor is used to sense the distance between the large wheel set and the load-bearing wall. The reset motor 202 is a double-output shaft reversible reduction motor, and the rotating shaft of the reset motor 202 is connected to the frame 101 through a shaft bracket 204. The shaft bracket is used to support the rotating shaft of the reset motor and enhance the stability of the reset motor during operation.

[0033] See Figure 1 、 Figure 2 、 Figure 3, the reset mechanism 203 includes a transmission mechanism 205 and a resetter 206. The reset motor 202 is connected to the resetter 206 through the transmission mechanism 205. The transmission mechanism 205 includes a transmission gear A 207, a worm 208, a transmission gear B 209, and a transmission gear C 210. The resetters 206 are symmetrically arranged outside the vehicle frame 101. The transmission gear A 207 and the transmission gear C 210 are both arranged on the resetter 206. The transmission gear A and the transmission gear C are used to drive the threaded sleeve of the resetter to rotate. Worms 208 are arranged on the rotating shafts on both sides of the reset motor 202. The worms are used to drive the transmission gear A and the transmission gear B to rotate. The left worm 208 of the reset motor 202 is drivingly connected to the transmission gear A 207, and the right worm 208 is drivingly connected to the transmission gear B 209. The transmission gear B 209 is meshingly connected to the transmission gear C 210.

[0034] See Figure 2 , Figure 3 , the resetter 206 includes a rotating seat 211, a threaded sleeve 212, a threaded rod 213, and a traveling seat 214. The rotating seat 211 is arranged outside the vehicle frame 101. The traveling seat 214 is arranged on the load-bearing high wall 3. The rotating seat 211 is connected to the traveling seat 214 through the threaded sleeve 212 and the threaded rod 213. A limit turntable 215 is arranged at the right end of the threaded sleeve 212. A rotating groove 216 adapted to the specification of the limit turntable 215 is opened in the middle of the rotating seat 211. The threaded sleeve 212 is rotatably arranged in the rotating groove 216 in the middle of the rotating seat 211 through the limit turntable 215 at the right end. Through the cooperation of the limit turntable and the rotating groove, the threaded sleeve can be rotated. The left end of the threaded sleeve 212 is threadedly connected to the threaded rod 213. A sliding block 217 is arranged at the left end of the threaded rod 213. A limit groove 218 is opened in the middle of the traveling seat 214. The threaded rod 213 is slidably arranged in the limit groove 218 in the middle of the traveling seat 214 through the sliding block 217 at the left end. Through the cooperation of the sliding block and the limit groove of the traveling seat, the threaded rod can be slid. The rotating seat 211 includes two symmetrically arranged N-shaped buckle plates 219. The N-shaped buckle plates 219 are connected by fixing bolts, which is convenient for the installation of the fiber turntable.

[0035] See Figure 3 , the traveling seat 214 includes a limit buckle plate 220, a fixing plate 221, and a reinforcing plate 222. The limit buckle plate 220 is fixedly arranged on the right side of the fixing plate 221, which is convenient for the installation of the sliding block. The fixing plate 221 is fixedly arranged on the load-bearing high wall 3. A reinforcing plate 222 is arranged at the connecting angle between the limit buckle plate 220 and the fixing plate 221. The reinforcing plate 222 is connected to the limit buckle plate 220 and the fixing plate 221 by bolts. Columnar balls 223 are also arranged inside the limit groove 218 of the traveling seat 214. The columnar balls are used to reduce the friction when the sliding block slides, making it smoother when sliding.

[0036] Usage method of the device for correcting deviation and preventing rail gnawing of the trolley traveling of bridge and gantry cranes:

[0037] Step 1: Install the deviation correction and rail gnawing prevention device 2 on the side of the large wheel set 1 at both ends of the crane main girder, and install the inductor 201 on the side of the frame 101 above the trolley traveling wheel 102.

[0038] Step 2: When the deviation occurs due to different traveling speeds of the trolleys on both sides of the main girder, the inductor 201 above the trolley traveling wheel 102 senses that the distances from the front and rear of the same large wheel set 1 to the load-bearing wall are different. The inductor 201 transmits the sensed data to the control system of the large wheel set 1. After the control system receives the measurement data of the two large wheel sets 1 on both sides of the main girder, since the two large wheel sets 1 have different traveling speeds at this time and their positions have deviated (see Figure 4 ), the measurement data should be that the distance between the front inductor 201 of one large wheel set 1 and the load-bearing wall is less than the distance between the rear inductor 201 and the load-bearing wall, and the distance between the front inductor 201 of the other large wheel set 1 and the load-bearing wall is greater than the distance between the rear inductor 201 and the load-bearing wall. The control system then controls the traveling motor 103 of the large wheel set 1 on the side where the distance between the front inductor 201 and the load-bearing wall is less than the distance between the rear inductor 201 and the load-bearing wall to increase the rotation speed, so that the large wheel set 1 on the side with the lagging position increases the traveling speed, thereby adjusting its position sensing and traveling speed.

[0039] Step 3: While correcting the deviation of the large wheel set 1, start the reset motor 202. The reset motor 202 drives the transmission gear A 207 and the transmission gear B 209 to rotate in the same direction through the worm 208. The rotation of the transmission gear A 207 drives the threaded sleeve 212 to rotate. The rotation of the threaded sleeve 212 cooperates with the threaded rod 213 to apply a lateral thrust to the front trolley traveling wheel 102 while the large wheel set 1 on the side with the lagging position is traveling. The rotation of the transmission gear B 209 drives the threaded sleeve 212 to rotate. The rotation of the threaded sleeve 212 cooperates with the threaded rod 213 to apply a lateral pulling force to the rear trolley traveling wheel 102, so as to push and pull the position of the large wheel set 1 back to the original position while it is traveling, thus completing the deviation correction.

[0040] Step 4: When the positions of the large wheel sets 1 on both sides of the main girder are the same and the deviation correction is completed, start the reset motor 202 to reverse it. The reverse rotation of the reset motor 202 drives the threaded sleeve 212 to rotate, so that the length of the threaded rod 213 extending out of the threaded sleeve 212 is reset, making the lengths of the resetters 206 on the front and rear sides of the large wheel set 1 the same, and limiting it during the traveling of the large wheel set 1, thereby preventing rail gnawing.

[0041] Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meanings as understood by those of ordinary skill in the art to which this invention pertains. As used in the specification and claims of this application, words such as "a" or "an" do not necessarily denote a limitation of quantity. Words such as "comprising" or "including" mean that the elements or items appearing before that word encompass the elements or items listed after that word and their equivalents, without excluding other elements or items. Words such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect.

[0042] The exemplary embodiments of the present invention have been described in detail above with reference to the preferred embodiments. However, those skilled in the art can understand that, without departing from the concept of the present invention, various modifications and variations can be made to the above specific embodiments, and various combinations can be made to the technical features and structures proposed by the present invention, without exceeding the protection scope of the present invention.

Claims

1. A device for correcting the deviation and preventing rail gnawing of the trolley traveling of bridge and gantry cranes, characterized in that: It includes a large wheel set and a deviation rectifying and anti-rail gnawing device. The deviation rectifying and anti-rail gnawing device is arranged on the large wheel set. The large wheel set includes a frame, traveling wheels, traveling motors and traveling rails. The traveling wheels are arranged at both ends of the frame. The traveling motors are arranged on the side of the frame. The traveling motors are connected to the traveling wheels through speed reducers. The traveling wheels travel on the traveling rails, and the traveling rails are arranged on load-bearing high walls. The deviation rectifying and anti-rail gnawing device includes sensors, a reset motor and a reset mechanism. The sensors are arranged on the side of the frame above the traveling wheels. The reset motor is arranged at the middle position of the side of the frame. The reset mechanism is arranged between the side of the frame and the load-bearing high wall.

2. The bridge and gantry crane trolley walking deviation correction and anti-rail gnawing device according to claim 1, characterized in that: The traveling motors are reversible motors. The traveling rails are I-shaped traveling rails. The traveling motors are arranged inside the frame. Buffers are also arranged on the frame above the traveling wheels.

3. The bridge and gantry crane trolley traveling deviation correction and anti-rail gnawing device according to claim 1, characterized in that: The sensors are distance sensors. The reset motor is a double-output-shaft reversible reduction motor. The rotating shaft of the reset motor is connected to the frame through a shaft bracket.

4. The bridge and gantry crane trolley walking deviation correction and anti-rail gnawing device according to claim 1, characterized in that: The reset mechanism includes a transmission mechanism and a resetter. The reset motor is connected to the resetter through the transmission mechanism. The transmission mechanism includes transmission gear A, a worm, transmission gear B and transmission gear C. The resetters are symmetrically arranged on the outside of the frame. Both transmission gear A and transmission gear C are arranged on the resetters. Worms are arranged on the rotating shafts on both sides of the reset motor. The worm on the left side of the reset motor is in transmission connection with transmission gear A, and the worm on the right side is in transmission connection with transmission gear B. Transmission gear B is meshed with transmission gear C.

5. The bridge and gantry crane trolley traveling deviation correction and anti-rail gnawing device according to claim 4, characterized in that: The resetter includes a rotating seat, a threaded sleeve, a threaded rod and a traveling seat. The rotating seat is arranged on the outside of the frame. The traveling seat is arranged on the load-bearing high wall. The rotating seat is connected to the traveling seat through the threaded sleeve and the threaded rod. A limit turntable is arranged at the right end of the threaded sleeve. A rotating groove adapted to the specification of the limit turntable is opened in the middle of the rotating seat. The threaded sleeve is rotatably arranged in the rotating groove in the middle of the rotating seat through the limit turntable at the right end. The left end of the threaded sleeve is threadedly connected to the threaded rod. A sliding block is arranged at the left end of the threaded rod. A limit groove is opened in the middle of the traveling seat. The threaded rod is slidably arranged in the limit groove in the middle of the traveling seat through the sliding block at the left end. The rotating seat includes two symmetrically arranged N-shaped buckle plates, and the N-shaped buckle plates are connected by fixing bolts.

6. The bridge and gantry crane trolley walking deviation correction and anti-rail gnawing device according to claim 5, characterized in that: The traveling seat includes a limit buckle plate, a fixing plate and a reinforcing plate. The limit buckle plate is fixedly arranged on the right side of the fixing plate. The fixing plate is fixedly arranged on the load-bearing high wall. A reinforcing plate is arranged at the connecting angle between the limit buckle plate and the fixing plate. The reinforcing plate is connected to the limit buckle plate and the fixing plate by bolts. Columnar balls are also arranged inside the limit groove of the traveling seat.

7. A method for using the device for correcting the deviation and preventing rail gnawing of the trolley traveling of a bridge or gantry crane, which is realized based on the device for correcting the deviation and preventing rail gnawing of the trolley traveling of a bridge or gantry crane according to claim 5 or 6, characterized in that, It includes the following steps: Step 1: Install the deviation rectifying and anti-rail gnawing device on the side of the large wheel set at both ends of the crane main girder, and install the inductor on the side of the frame above the trolley wheel; Step 2: When there is a deviation due to different traveling speeds of the trolleys on both sides of the main girder, the inductor above the trolley wheel senses that the distances from the front and rear of the same large wheel set to the load-bearing wall are different. The inductor transmits the sensed data to the control system of the large wheel set. After the control system receives the measurement data of the two groups of large wheel sets on both sides of the main girder, since the two groups of large wheel sets have deviated in position due to different traveling speeds at this time, the measurement data should be that the distance between the front inductor of one side of the large wheel set and the load-bearing wall is less than the distance between the rear inductor and the load-bearing wall, and the distance between the front inductor of the other side of the large wheel set and the load-bearing wall is greater than the distance between the rear inductor and the load-bearing wall. The control system then controls the traveling motor speed of the large wheel set on the side where the distance between the front inductor and the load-bearing wall is less than the distance between the rear inductor and the load-bearing wall to increase, so that the large wheel set on the side with a lagging position speeds up its traveling speed, thereby adjusting its position sensing and traveling speed; Step 3: While rectifying the deviation of the large wheel set, start the reset motor. The reset motor runs to drive the transmission gear A and the transmission gear B to rotate in the same direction through the worm. The rotation of the transmission gear A drives the threaded sleeve to rotate. The rotation of the threaded sleeve cooperates with the threaded rod to apply a lateral thrust to the front traveling wheel of the large wheel set on the side with a lagging position while it is traveling. The rotation of the transmission gear B drives the threaded sleeve to rotate. The rotation of the threaded sleeve cooperates with the threaded rod to apply a lateral pulling force to the rear traveling wheel, so as to push and pull the position of the large wheel set back to its original position while it is traveling, thus completing the deviation rectification; Step 4: When the positions of the large wheel sets on both sides of the main girder are the same and the deviation rectification is completed, start the reset motor to reverse. The reverse rotation of the reset motor drives the threaded sleeve to rotate, so that the length of the threaded rod extending out of the threaded sleeve is reset, making the lengths of the resetters on the front and rear sides of the large wheel set the same, and limiting the large wheel set during its travel, thereby preventing it from gnawing the rail.

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