CN114291176A - Heavy object shifting device for bridge construction - Google Patents
Heavy object shifting device for bridge construction Download PDFInfo
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- CN114291176A CN114291176A CN202210043723.4A CN202210043723A CN114291176A CN 114291176 A CN114291176 A CN 114291176A CN 202210043723 A CN202210043723 A CN 202210043723A CN 114291176 A CN114291176 A CN 114291176A
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Abstract
The invention discloses a weight shifting device for bridge construction, which relates to the field of construction equipment, and adopts the technical scheme that the weight shifting device comprises a frame, wherein the frame is connected with two roller bodies which are arranged in parallel; the frame comprises a support rod in the middle and a machine shell positioned on two sides of the support rod, and a driving unit and a steering unit are respectively arranged in the machine shell; the two roller bodies are arranged between the machine shells on the two sides, and the two roller bodies are respectively positioned on the two sides of the supporting rod; the driving unit comprises a driving device and two output shafts which are linked with the driving device and move synchronously, and the two output shafts are linked with the roller shaft of one roller body respectively. The invention has the beneficial effects that: the device adopts the roller body as the movement unit, is different from a common wheel type structure, and the rotating roller body can bear heavier load. The roller body is used as a main body for mainly bearing and moving. After bearing the long-strip building materials by the device, under the condition that the roller bodies have the same total rotating angles, the moving distance of the device to the heavy object is longer, and therefore higher construction efficiency is brought.
Description
Technical Field
The invention relates to the field of building equipment, in particular to a weight shifting device for bridge construction.
Background
When a bridge is constructed, the whole process involves a large amount of building materials and equipment, generally speaking, the components of the bridge comprise various objects with large volume and heavy weight, and the components correspond to different load-carrying devices, and common portal cranes, crawler cranes and plate erecting machines are all suitable for extremely large members. And the relatively smaller bridge plate, steel structure and the like are more convenient to transport by virtue of small equipment.
At present, a special weight shifter is used for meeting the requirements, but most of the existing weight shifters work by means of tracks on construction sites, the moving positions are limited, and the carrying capacity and the carrying speed are relatively slow.
Disclosure of Invention
In order to solve the technical problems, the invention provides a weight shifting device for bridge construction.
The technical scheme is that the roller comprises a frame, wherein the frame is connected with two roller bodies which are arranged in parallel;
the frame is H-shaped and comprises a support rod in the middle and machine shells positioned on two sides of the support rod, and a driving unit and a steering unit are respectively arranged in the machine shells on the two sides; the two roller bodies are arranged between the machine shells on the two sides, and the two roller bodies are respectively positioned on the two sides of the supporting rod;
the driving unit comprises a driving device and two output shafts which are linked with the driving device and move synchronously, and the two output shafts are linked with the roller shaft of the roller body respectively; the driving device can be an electric motor or a fuel engine and is linked with the output shaft through a speed reducing mechanism.
The steering unit comprises two steering wheels, each steering wheel is connected with the casing through a lifting frame, the lifting frame is connected with the vertically arranged rotating rod, the rotating rod is connected with the casing in a rotating mode, and each rotating rod is linked with a steering mechanism in the steering unit.
The steering mechanism selects a gear combination to steer, and comprises steering gears fixedly connected with the end parts of the rotating rods, a steering motor is arranged between the two steering gears, a motor shaft of the steering motor is fixedly connected with a driving wheel, and the driving wheel and the steering gears on the two sides are linked through different reduction gear sets to realize synchronous reverse rotation of the two steering gears.
Each steering wheel is linked with a driving motor and driven by the driving motor to move, and the linkage form of the driving motor and the steering wheel is driven by a chain and chain wheel combination, or a belt and a belt pulley, or a gear set.
The lifting frame can adopt a lifting rod in the prior art to be combined with a wheel frame, and the lifting rod can adopt a hydraulic or pneumatic rod.
Preferably, the roller body is a solid roller body, such as a rubber roller.
The inside support skeleton that sets up of roll body, skeleton cladding elastic material, skeleton can divide multiple form, and its effect can adopt prior art for playing inside auxiliary stay's effect, and concrete form is no longer repeated here.
The lower part of the shell where the driving unit is located is connected with a positioning wheel through another lifting frame, the positioning wheel is a sphere, a connecting block with a ball groove is arranged on the lower side of the lifting frame corresponding to the positioning wheel, and the positioning wheel is embedded in the ball groove and is rotationally connected with the inner wall of the ball groove; the driven wheel only serves as a driven wheel, and a related driving unit is not needed to be linked;
the positioning wheels and the two steering wheels are distributed in an isosceles triangle shape.
Preferably, the outer diameter of the roller body is larger than the height of the frame, and the distance between the upper end face of the roller body and the ground surface is larger than the distance between the upper end face of the frame and the ground surface.
Preferably, the machine shell on the two sides is respectively provided with a top plate;
the upper side of the machine shell is provided with a counter bore, and the lower side of the top plate is connected with the counter bore of the machine shell through a lifting rod;
after the lifting rod is completely lifted, the upper end face of the lifting rod is flush with the upper end face of the roller body or higher than the upper end face of the roller body.
Preferably, two top plates are arranged on the casing corresponding to the driving unit, and the two top plates are respectively positioned at two ends of the upper side of the casing;
and a top plate is arranged on the shell corresponding to the steering unit and is positioned in the middle of the shell.
Preferably, distance sensor groups are respectively arranged on the outer sides of the shell on the two sides, and each distance sensor group comprises two symmetrically arranged distance sensors;
each distance sensor is electrically connected with a driving motor of a steering wheel and a steering motor through a control module to form a control loop.
Preferably, the direction of the device is adjusted by combining the distance sensor with a steering wheel according to the following method;
a1, arranging an alignment reference object on at least one side of the advancing direction of the device, wherein the alignment reference object is a long-strip-shaped shelter, and the covering height of the alignment reference object on the vertical plane exceeds the horizontal height of the distance sensor;
a2, adjusting the alignment reference object to ensure that the long axis of the alignment reference object is parallel to the axis of the carrying forward direction; the alignment reference object can be selected from cloth strips, plate bodies and the like, and if the bridge building is partially formed, the bridge body side plate can be used as the alignment reference object;
a3, starting a distance sensor group facing one side of the adjustment reference object, and respectively measuring the distance of the adjustment reference object by two distance sensors 4;
a4, the distance sensor feeds back the measurement result to the control module, and the control module controls the rotation direction and the rotation angle of the device by adjusting the motors corresponding to the two steering wheels according to the feedback result;
a5, after the alignment in the step A4 is finished, the two distance sensors of the same distance sensor group perform distance measurement relative to the alignment reference again, and when the distance measured by the two distance sensors is equal, the steering wheel is braked; and finishing the direction alignment of the device, and if the deviation exists, continuing the alignment.
After the alignment is finished, the device is in place, the lifting frames of the steering wheel and the positioning wheel are retracted, and the roller body is in close contact with the ground to wait for transportation.
Preferably, the distance sensor can be any one of a doppler radar, an ultrasonic, a laser or an infrared distance sensor. As long as it is sufficient that the distance between the distance sensor 4 and the alignment reference can be measured.
Preferably, in the method a4, the control module determines that the device needs to be rotated by an angle,
defining one distance sensor in the same distance sensor group as a point A, the other distance sensor as a point B, the projection of the point A on the vertical plane where the point B is located as a point C, and the distance between the point A and the alignment reference object as D1B is spaced from the alignment reference by a distance D2Then, it can be:
BC＝|D1-D2|
to obtain the angle CBA which is arccos BC/AB, namely,
further, the angle α at which the device needs to be rotated is:
wherein AB is the spacing between the two distance sensors, a known quantity; the direction in which the device needs to be rotated can be judged by D1And D2The size of (2) is obtained.
Further, the main control module can calculate that the distance L that any steering wheel needs to move is as follows:
wherein R is the distance from the driven wheel to any one of the steering wheels;
and the total angle of the steering wheel required to rotate can be obtained according to the distance L and the radius of the steering wheel.
By combining the method, the operation and control of the device can be manually controlled, and the direction regulation of the device can be automatically completed by the device, so that the problem that the device is difficult to master by visual inspection during manual operation is avoided.
Preferably, two gear speed change assemblies are arranged in the driving unit and respectively correspond to two rotation directions of the roller body, one of the two gear speed change assemblies is a low-rotation-speed high-torque speed change assembly, and the other gear speed change assembly is a high-rotation-speed low-torque speed change assembly.
Preferably, one end of each of the two shells is provided with a set of auxiliary supporting components;
the auxiliary supporting component comprises a bracket and a pressing plate; the bracket comprises at least one push rod, the fixed end of the push rod is fixedly connected with the shell, and the movable end of the push rod is hinged with the lower side surface of the pressing plate; the push rod can be electric, pneumatic or hydraulic;
the pressing plate extends to the roller shaft of the roller body at the end where the pressing plate is located, an arc-shaped tile plate is arranged on the outer side of the roller shaft of the roller body, and a push rod is fixedly connected to the outer side of the tile plate; a positioning plate is fixedly arranged on one side of the machine shell facing the roller body, a guide hole is formed in the plate body of the positioning plate corresponding to the push rod, and the tile plate is connected with the positioning plate in a sliding mode through the push rod and the guide hole;
a pressing rod is arranged between the push rod and the pressing plate and is a telescopic rod, and two ends of the pressing rod are hinged to the pressing plate and the push rod respectively.
The weight linear displacement method based on the weight displacement device comprises the following steps,
s1, arranging a plurality of weight shifting devices into a line, selecting the number of the weight shifting devices to be used according to actual requirements, wherein the number of the weight shifting devices is at least three, and the advancing direction of the weight shifting devices is the large-torque gear direction;
s2, placing the weight to be moved on a roller body of the weight shifting device;
s3, starting the weight shifting device to move forward to the target position;
s4, with the forward movement of the heavy object, when the heavy object shifting device at the tail end is unloaded, controlling the device at the tail end to translate for a distance of at least half the width of the vehicle frame, and then rotating the heavy object shifting device for 180 degrees;
s5, the weight shifting device adjusts the direction according to the adjusting reference object;
and S6, after the alignment is completed, the weight shifting device is switched to a high-rotation-speed gear, the weight is moved to the foremost end of the weight in the reverse rotation direction of the roller body, then the weight is rotated by 180 degrees again, the weight is translated by the same amount as the S4, and the weight is waited to be carried on the roller body.
And S7, repeating the steps S3-S6 until the weight is moved to the required position.
The technical scheme provided by the embodiment of the invention has the following beneficial effects: the device adopts the roller body as the movement unit, is different from a common wheel type structure, and the rotating roller body can bear heavier load. The roller body is used as a main body for mainly bearing and moving. After the device queue bears the long-strip building materials, when the roller body moves, the device self moves to drive the building materials to move, and the building materials on the device queue also move forwards slowly along with the movement of the roller body. Under the condition that the roller bodies have the same total rotating angles, the moving distance of the device to the heavy object is longer, and therefore higher construction efficiency is achieved.
Drawings
Fig. 1 is a first overall structural diagram of an embodiment of the present invention.
Fig. 2 is a schematic overall structure diagram of the embodiment of the invention.
Fig. 3 is a schematic overall structure diagram of the embodiment of the present invention.
Fig. 4 is a partially enlarged view a of fig. 3.
Fig. 5 is a schematic view of the embodiment of the present invention in a state where the top plate is raised.
Fig. 6 is a schematic view of a turning state according to an embodiment of the present invention.
Fig. 7 is a schematic view of a method for calculating a rotation angle according to an embodiment of the present invention.
Wherein the reference numerals are: 1. a roller body; 2. a frame; 21. a drive unit; 22. a steering unit; 221. a steering wheel; 222. positioning wheels; 23. a strut; 3. a top plate; 4. a sensor; 5. an auxiliary support assembly; 51. a support; 52. pressing a plate; 53. a push rod; 54. positioning a plate; 55. a pressure lever.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. Of course, the specific embodiments described herein are merely illustrative of the invention and are not intended to be limiting.
It should be noted that the embodiments and features of the embodiments of the present invention may be combined with each other without conflict.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings, which are merely for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be construed as limiting the invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "disposed" are to be construed broadly, e.g. as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1
Referring to fig. 1-3 and fig. 6, the invention provides a weight shifting device for bridge construction, which comprises a frame 2, wherein the frame 2 is connected with two roller bodies 1 arranged in parallel;
the frame 2 is H-shaped and comprises a support rod 23 in the middle and machine cases positioned at two sides of the support rod 23, and a driving unit 21 and a steering unit 22 are respectively arranged in the machine cases at two sides; the two roller bodies 1 are arranged between the machine shells on the two sides, and the two roller bodies 1 are respectively positioned on the two sides of the supporting rod 23;
the driving unit 21 comprises a driving device and two output shafts which are linked with the driving device and move synchronously, and the two output shafts are linked with a roll shaft of one roll body 1 respectively; the driving device selects a fuel engine and is linked with the output shaft through a speed reducing mechanism.
The steering unit 22 comprises two steering wheels 221, each steering wheel 221 is connected with the casing through a lifting frame, the upper side of the lifting frame is connected with a vertically arranged rotating rod, the rotating rod is connected with the casing in a rotating mode, and each rotating rod is linked with a steering mechanism in the steering unit 22.
The steering mechanism selects gear combination to steer, and comprises steering gears fixedly connected with the end parts of the rotating rods, a steering motor is arranged between the two steering gears, a motor shaft of the steering motor is fixedly connected with a driving wheel, and the driving wheel and the steering gears on the two sides are linked through different reduction gear sets to realize synchronous reverse rotation of the two steering gears.
Each steering wheel 221 is linked with a driving motor and driven by the driving motor to move, and the linkage form of the driving motor and the steering wheel 221 is driven by a chain and chain wheel combination, or a belt and a belt pulley, or a gear set.
The lifting frame can adopt a lifting rod in the prior art to combine with the wheel frame, and the lifting rod adopts a hydraulic rod.
The roll body 1 is a solid roll body, such as a rubber roll.
The inside skeleton that supports that sets up of roll body 1, skeleton cladding elastic material, skeleton can divide the multiform, and its effect can adopt prior art for playing inside auxiliary stay's effect, and concrete form is no longer repeated here.
The lower part of the machine shell where the driving unit 22 is located is connected with a positioning wheel 222 through another lifting frame, the positioning wheel 222 is a sphere, a connecting block with a sphere groove is arranged at the lower side of the lifting frame corresponding to the positioning wheel 222, and the positioning wheel 222 is embedded in the sphere groove and is rotationally connected with the inner wall of the sphere groove; the driven wheel 222 only serves as a driven wheel, and does not need to be linked with a related driving unit;
the positioning wheel 222 and the two steering wheels 221 are distributed in an isosceles triangle.
The device adopts the roller body 1 as a moving unit, is different from a common wheel type structure, and the rotating roller body can bear heavier load. The roller body 1 is used as a main body for mainly bearing and moving. Considering that the roller body 1 is adapted to move in a linear direction but is insufficient in rotation capability, a steering mechanism is added. In the in-service use process, miniature heavy object shifting device does not need to turn to when transporting the object usually, as long as guarantee empty load turn to nimble can, this scheme uses triangular wheel distribution, combine the crane, when needs turn to, the crane is transferred directive wheel 221 and locating wheel 222 and jack-up frame 2, makes roll body 1 leave ground slightly, locating wheel 222 plays the effect as centre of a circle location, two directive wheels 221 use locating wheel 222 to rotate as the centre of a circle to realize turning to of this device. When the device needs to move transversely, the axial direction of the steering wheel 221 can be adjusted to be vertical to the axial direction of the roller body 1, and the whole device is driven to move by the movement of the steering wheel 221. On the basis of meeting the enough load-carrying capacity, the flexible transfer can be ensured when the vehicle is unloaded.
The outer diameter of the roller body 1 is larger than the height of the frame 2, and the distance between the upper end surface of the roller body 1 and the earth surface is larger than the distance between the upper end surface of the frame 2 and the earth surface.
Through this scheme, this device has adopted frame 2 and the form of bearing different with current carrying device. Because in the bridge work progress, long banding heavy object accounts for than very big, and during the use of this device, can adopt the mode of a plurality of devices joint transportation, arrange into one or multiseriate with a plurality of devices, directly with the help of roll body 1 as the community that removes and bear, place long banding building materials on partly device roll body 1 wherein, slowly move forward, when roll body 1 removed, device self displacement drives the building materials and removes, and along with the motion of roll body 1, the building materials on it also slowly moves forward. When the device at the rear side is unloaded as the building material advances, the device is advanced to the foremost end of the building material at a higher speed to serve as a traction and support for the front part, and the operation is repeated.
Example 2
Referring to fig. 5, on the basis of embodiment 1, top plates 3 are respectively arranged on the machine cases on both sides;
the upper side of the machine shell is provided with a counter bore, and the lower side of the top plate 3 is connected with the counter bore of the machine shell through a lifting rod;
after the lifting rod is completely lifted, the upper end surface of the lifting rod is flush with the upper end surface of the roller body 1 or higher than the upper end surface of the roller body 1.
The device can be used as a conventional carrying device by combining the lifting rod and the top plate 3, the lifting rod is lifted to place heavy objects to be transported on the top plate 3, or other bearing structures such as plates, boxes and the like are additionally arranged on the top plate 3, so that the device can be used as a traditional transporting device.
Two top plates 3 are arranged on the shell corresponding to the driving unit 21, and the two top plates 3 are respectively positioned at two ends of the upper side of the shell;
a top plate 3 is arranged on the corresponding machine shell of the steering unit 22, and the top plate 3 is positioned in the middle of the machine shell.
Since the frame 2 is smaller than the roller body 1, the device is as space-saving as possible, and the positioning wheel 222 is arranged in the middle of the driving unit 21, and the positioning wheel 222 is provided with a lifting structure, so that the top plate 3 and the lifting rod thereof are arranged at two ends of the machine shell. And on the contrary, the casing corresponding to the steering unit 22 has the top plate 3 arranged in the middle part because the steering wheel 221 and the lifting structure are arranged on both sides, and the three top plates 3 distributed in a triangular shape can stably support the load-bearing object, and relatively save the space of the device.
Example 3
Referring to fig. 7, on the basis of the above embodiment, distance sensor groups are respectively arranged on the outer sides of the housings on both sides, and each distance sensor group includes two distance sensors 4 symmetrically arranged;
each distance sensor 4 is electrically connected with a driving and steering motor of the steering wheel 221 through a control module to form a control loop.
The direction of the device is adjusted by combining the distance sensor 4 with the steering wheel 221 according to the following method;
a1, arranging an alignment reference object on at least one side of the advancing direction of the device, wherein the alignment reference object is a long-strip-shaped shelter, and the coverage height of the alignment reference object on the vertical plane exceeds the horizontal height of the distance sensor 4;
a2, adjusting and aligning the reference object to ensure that the long axis of the reference object is parallel to the axis of the carrying forward direction; the alignment reference object can be selected from cloth strips, plate bodies and the like, and if the bridge building is partially formed, the bridge body side plate can be used as the alignment reference object;
a3, starting a distance sensor group facing one side of the adjustment reference object, and respectively measuring the distance of the adjustment reference object by two distance sensors 4;
a4, the distance sensor 4 feeds back the measurement result to the control module, and the control module controls the rotation direction and the rotation angle of the device by adjusting the corresponding motors of the two steering wheels 221 according to the feedback result;
a5, after the alignment in the step A4 is finished, the two distance sensors 4 of the same distance sensor group measure distance relative to the alignment reference again, and when the distances measured by the two distance sensors 4 are equal, the steering wheel 221 brakes; and finishing the direction alignment of the device, and if the deviation exists, continuing the alignment.
After the alignment is finished, the device is in place, the lifting frames of the steering wheel 221 and the positioning wheel 222 are retracted, and the roller body 1 is in close contact with the ground to wait for transportation.
The distance sensor 4 may be any one of a doppler radar, an ultrasonic, a laser, or an infrared distance sensor. As long as it is sufficient that the distance between the distance sensor 4 and the alignment reference can be measured.
Since the roller body 1 itself has no turning ability, the alignment of the apparatus is very important, and if the apparatus is not oriented during transportation, it is easy to make the subsequent carrying cheap. By the method, the correct advancing direction of the device can be ensured.
In a4, the control module determines that the device requires a turning angle by,
defining one distance sensor 4 in the same distance sensor group as a point A, the other distance sensor 4 as a point B, the projection of the point A on the vertical plane where the point B is located as a point C, and the distance between the point A and the alignment reference object as D1B is spaced from the alignment reference by a distance D2Then, it can be:
BC＝|D1-D2|
to obtain the angle CBA which is arccos BC/AB, namely,
further, the angle α at which the device needs to be rotated is:
where AB is the spacing between the two distance sensors 4, a known quantity; the direction in which the device needs to be rotated can be judged by D1And D2The size of (2) is obtained.
Further, the main control module can calculate that the distance L that any steering wheel (221) needs to move is as follows:
where R is the distance from the driven wheel 222 to any of the steerable wheels 221;
from the distance L in combination with the radius of the steered wheel 221, the total angle that the steered wheel 221 needs to turn can be known.
By combining the method, the operation and control of the device can be manually controlled, and the direction regulation of the device can be automatically completed by the device, so that the problem that the device is difficult to master by visual inspection during manual operation is avoided.
Example 4
On the basis of the above embodiment, two gear speed change assemblies are arranged in the driving unit 21, and respectively correspond to two rotation directions of the roller body 1, wherein one of the two gear speed change assemblies is a low-rotation-speed high-torque speed change assembly, and the other one of the two gear speed change assemblies is a high-rotation-speed low-torque speed change assembly.
The scheme adopts a two-gear speed change mode, and the speed changer and the specific structure inside the speed changer can be realized by using the prior art, so that the detailed description is omitted. With two gears, the forward direction of the high torque gear is used when the load is going forward. When the corresponding device needs to be moved to the forefront end of the carrying queue to which the device belongs, the device is firstly turned by 180 degrees by means of the turning wheel 221 and the positioning wheel 222 of the 22-stage turning unit, then the device is switched to another gear, the roller body 1 is reversely rotated, the device is driven to the forefront end of the carrying queue at a high speed, then the device is turned to 180 degrees again, the device is switched back to a large torque gear, and the device continues to carry load and advance.
Example 5
Referring to fig. 4, on the basis of the above embodiment, a set of auxiliary supporting components 5 is arranged at one end of each of the two housings;
the auxiliary supporting component 5 comprises a bracket 51 and a pressing plate 52; the bracket 51 comprises at least one push rod, the fixed end of the push rod is fixedly connected with the shell, and the movable end of the push rod is hinged with the lower side surface of the pressing plate 52; the push rod can be electric, pneumatic or hydraulic;
the pressing plate 52 extends to the roller shaft of the roller body 1 at the end where the pressing plate is located, an arc-shaped tile plate is arranged on the outer side of the roller shaft of the roller body 1, and a push rod 53 is fixedly connected to the outer side of the tile plate; a positioning plate 54 is fixedly arranged on one side of the machine shell facing the roller body 1, a guide hole is formed in the plate body of the positioning plate 54 corresponding to the push rod 53, and the tile plate is connected with the positioning plate 54 in a sliding mode through the push rod 53 and the guide hole;
a pressure lever 55 is arranged between the push rod 53 and the pressure plate 52, the pressure lever 55 is a telescopic lever, and two ends of the pressure lever 55 are respectively hinged with the pressure plate 52 and the push rod 53.
Because the roller body 1 is slightly deformed after bearing the heavy object, the upper end surface of the roller body 1 of the device which is positioned at the foremost end of the queue and is unloaded is slightly higher than the lower end surface of the heavy object, and the auxiliary supporting component 5 is additionally arranged, so that the problem is solved.
When the roller is used, the push rod 53 retracts, the auxiliary pressing plate 52 is driven at the moment, the inclination relative to the horizontal plane is larger, and the auxiliary pressing plate is slightly higher than the roller body 1 and is convenient to contact with the lower surface of a heavy object coming from the rear. When the weight is contacted with the pressing plate 52, the upper part of the pressing plate 52 is pressed down under the pushing of the weight, and the pressing rod 55 applies downward pressure to the pushing rod 53, so that the tile plate is tightly pressed on the roller shaft of the roller body 1. On one hand, the weight is convenient to carry on the roller body 1 through the inclined pressing plate, and on the other hand, the roller shaft of the roller body 1 is pressed through the tile plate by means of the force applied by the weight. The situation that the whole device is pushed when the braking system of the device is not enough to resist the thrust of a heavy object is avoided.
After the heavy object is carried, the push rod of the controllable bracket 51 slightly extends outwards, so that the inclination degree of the press plate 52 is reduced, the press plate is not pressed by the heavy object any more, and the roller body 1 can move forwards unaffected.
The weight linear displacement method based on the weight displacement device comprises the following steps,
s1, arranging a plurality of weight shifting devices into a line, selecting the number of the weight shifting devices to be used according to actual requirements, wherein the number of the weight shifting devices is at least three, and the advancing direction of the weight shifting devices is the large-torque gear direction;
s2, placing the weight to be moved on the roller body 1 of the weight shifting device;
s3, starting the weight shifting device to move forward to the target position;
s4, with the forward movement of the heavy object, when the heavy object shifting device at the tail end is unloaded, the device at the tail end is controlled to translate for a distance of at least half the width of the frame 2, and then the heavy object shifting device is rotated for 180 degrees;
s5, the weight shifting device adjusts the direction according to the adjusting reference object;
and S6, after the alignment is completed, the weight shifting device is switched to a high-rotation-speed gear, the roller body 1 moves forwards to the foremost end of the weight in the reverse rotation direction, then the roller body rotates 180 degrees again, the translation equal to that of the S4 is carried out, and the weight is waited to be carried on the roller body 1.
And S7, repeating the steps S3-S6 until the weight is moved to the required position.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent replacements, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A heavy object shifting device for bridge construction is characterized by comprising a frame (2), wherein the frame (2) is connected with two roller bodies (1) which are arranged in parallel;
the frame (2) is H-shaped and comprises a support rod (23) in the middle and machine shells positioned on two sides of the support rod (23), and a driving unit (21) and a steering unit (22) are respectively arranged in the machine shells on the two sides; the two roller bodies (1) are arranged between the machine shells on the two sides, and the two roller bodies (1) are respectively positioned on the two sides of the supporting rod (23);
the driving unit (21) comprises a driving device and two output shafts which are linked with the driving device and move synchronously, and the two output shafts are linked with a roll shaft of the roll body (1) respectively;
turn to unit (22) including two directive wheel (221), every directive wheel (221) all through a crane with the casing is connected, the crane upside connect the dwang of vertical setting, the dwang with the casing rotates to be connected, and every dwang all with turn to the steering mechanism linkage in the unit (22).
The lower part of the machine shell where the driving unit (22) is located is connected with a positioning wheel (222) through another lifting frame, the positioning wheel (222) is a sphere, a connecting block with a sphere groove is arranged on the lower side of the lifting frame corresponding to the positioning wheel (222), and the positioning wheel (222) is embedded in the sphere groove and is rotationally connected with the inner wall of the sphere groove;
the positioning wheels (222) and the two steering wheels (221) are distributed in an isosceles triangle.
2. The weight shifting apparatus for bridge construction according to claim 1, wherein the outer diameter of the roller body (1) is larger than the height of the vehicle frame (2), and the distance between the upper end surface of the roller body (1) and the ground surface is larger than the distance between the upper end surface of the vehicle frame (2) and the ground surface.
3. The weight shifting apparatus for bridge construction according to claim 2, wherein top plates (3) are provided on the housings at both sides, respectively;
the upper side of the machine shell is provided with a counter bore, and the lower side of the top plate (3) is connected with the counter bore of the machine shell through a lifting rod;
after the lifting rod is completely lifted, the upper end face of the lifting rod is flush with the upper end face of the roller body (1) or higher than the upper end face of the roller body (1).
4. The weight shifting device for bridge construction according to claim 3, wherein two top plates (3) are arranged on the corresponding housing of the driving unit (21), and the two top plates (3) are respectively arranged at two ends of the upper side of the housing;
a top plate (3) is arranged on the shell corresponding to the steering unit (22), and the top plate (3) is located in the middle of the shell.
5. The weight shifting device for bridge construction according to claim 4, wherein distance sensor groups are respectively arranged at the outer sides of the housings at two sides, and each distance sensor group comprises two symmetrically arranged distance sensors (4);
each distance sensor (4) is electrically connected with a driving and steering motor of a steering wheel (221) through a control module to form a control loop.
6. The weight shifting apparatus for bridge construction according to claim 5, wherein the distance sensor (4) is combined with a steering wheel (221) to perform the direction adjustment of the apparatus according to the following method;
a1, arranging an alignment reference object on at least one side of the advancing direction of the device, wherein the alignment reference object is a long-strip-shaped shelter, and the covering height of the alignment reference object on the vertical plane exceeds the horizontal height of the distance sensor (4);
a2, adjusting the alignment reference object to ensure that the long axis of the alignment reference object is parallel to the axis of the carrying forward direction;
a3, starting a distance sensor group facing one side of the adjustment reference object, and respectively measuring the distance of the adjustment reference object by two distance sensors 4;
a4, the distance sensor (4) feeds back the measurement result to the control module, and the control module controls the rotation direction and the rotation angle of the device by adjusting the corresponding motors of the two steering wheels (221) according to the feedback result;
a5, after the alignment in the step A4 is finished, the two distance sensors (4) of the same distance sensor group measure distance relative to the alignment reference again, and when the distances measured by the two distance sensors (4) are equal, the steering wheel (221) brakes; and finishing the direction alignment of the device, and if the deviation exists, continuing the alignment.
7. The weight shifting apparatus for bridge construction according to claim 6, wherein in A4, the method for determining the required rotation angle of the apparatus by the control module is,
defining one distance sensor (4) in the same distance sensor group as a point A, the other distance sensor (4) as a point B, the projection of the point A on the vertical plane where the point B is located is a point C, and the distance between the point A and the alignment reference object is D1B is spaced from the alignment reference by a distance D2Then, it can be:
the angle α that the device needs to rotate is:
wherein AB is the spacing between the two distance sensors (4), a known quantity; the direction in which the device needs to be rotated can be judged by D1And D2The size of (2) is obtained.
8. The weight shifting apparatus for bridge construction according to claim 2, wherein two shift speed changing assemblies are provided in the driving unit (21) respectively corresponding to two rotation directions of the roller (1), one of which is a low rotation speed high torque speed changing assembly and the other is a high rotation speed low torque speed changing assembly.
9. The weight shifting apparatus for bridge construction according to any one of claims 1 to 8, wherein one end of each of the two housings is provided with a set of auxiliary support members (5);
the auxiliary supporting component (5) comprises a bracket (51) and a pressing plate (52); the support (51) comprises at least one push rod, the fixed end of the push rod is fixedly connected with the shell, and the movable end of the push rod is hinged with the lower side surface of the pressing plate (52);
the pressing plate (52) extends to the roller shaft of the roller body (1) at the end where the pressing plate is located, an arc-shaped tile plate is arranged on the outer side of the roller shaft of the roller body (1), and a push rod (53) is fixedly connected to the outer side of the tile plate; a positioning plate (54) is fixedly arranged on one side, facing the roller body (1), of the machine shell, a guide hole is formed in a plate body of the positioning plate (54) corresponding to the push rod (53), and the tile plate is connected with the positioning plate (54) in a sliding mode through the push rod (53) and the guide hole;
a pressing rod (55) is arranged between the push rod (53) and the pressing plate (52), the pressing rod (55) is a telescopic rod, and two ends of the pressing rod (55) are hinged to the pressing plate (52) and the push rod (53) respectively.
10. A method for linearly displacing a weight based on the weight displacing device according to any one of claims 1 to 9, comprising the steps of,
s1, arranging a plurality of weight shifting devices into a row, wherein the advancing direction of the weight shifting devices is the large-torque gear direction;
s2, placing the weight to be moved on a roller body (1) of the weight shifting device;
s3, starting the weight shifting device to move forward to the target position;
s4, with the forward movement of the heavy object, when the heavy object shifting device at the tail end is unloaded, the device at the tail end is controlled to translate for a distance of at least half the width of the vehicle frame (2), and then the heavy object shifting device is rotated for 180 degrees;
s5, the weight shifting device adjusts the direction according to the adjusting reference object;
and S6, after the alignment is finished, the weight shifting device is switched to a high-rotation-speed gear, the roller body (1) moves forwards to the foremost end of the weight in the reverse rotation direction, then the roller body rotates 180 degrees again, the translation equal to that of the S4 is carried out, and the weight is waited to be carried on the roller body (1).
And S7, repeating the steps S3-S6 until the weight is moved to the required position.
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| CN202210043723.4A CN114291176B (en) | 2022-01-14 | 2022-01-14 | Heavy object displacement device for bridge construction |
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| CN114291176B (en) | 2023-12-22 |
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