CN117090400B - Prestress tensioning trolley - Google Patents
Prestress tensioning trolley Download PDFInfo
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- CN117090400B CN117090400B CN202311361261.1A CN202311361261A CN117090400B CN 117090400 B CN117090400 B CN 117090400B CN 202311361261 A CN202311361261 A CN 202311361261A CN 117090400 B CN117090400 B CN 117090400B
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- 230000007246 mechanism Effects 0.000 claims abstract description 17
- 229910000831 Steel Inorganic materials 0.000 claims description 29
- 239000010959 steel Substances 0.000 claims description 29
- 230000008093 supporting effect Effects 0.000 claims description 10
- 230000009467 reduction Effects 0.000 claims description 4
- 238000003466 welding Methods 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 13
- 230000003014 reinforcing effect Effects 0.000 description 10
- 230000001681 protective effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000001795 light effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/12—Mounting of reinforcing inserts; Prestressing
- E04G21/121—Construction of stressing jacks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D21/00—Understructures, i.e. chassis frame on which a vehicle body may be mounted
- B62D21/02—Understructures, i.e. chassis frame on which a vehicle body may be mounted comprising longitudinally or transversely arranged frame members
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C11/00—Trolleys or crabs, e.g. operating above runways
- B66C11/02—Trolleys or crabs, e.g. operating above runways with operating gear or operator's cabin suspended, or laterally offset, from runway or track
- B66C11/04—Underhung trolleys
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The application belongs to bridge engineering auxiliary construction equipment technical field, relates to a prestressing force tensioning platform truck, include: the chassis system comprises a frame and four wheels connected with the frame; each wheel is connected with a speed reducing mechanism and a motor, so that four-wheel steering is achieved; the lifter bracket comprises a stand column; a slide plate support is arranged in the upright post, and can slide in the upright post; the lifting frame body is connected with the lifting machine support through the sliding plate support so as to move in the vertical direction; the pulley is arranged on the transverse rod piece at the top of the lifting frame body; the sliding beam assembly is connected with the pulley; the jack is arranged at the free end of the sliding beam assembly; the jack can move on the sliding beam assembly through the pulley, and prestress is applied to the bridge anchor rod after the jack reaches a designated position. The four-wheel steering system adopted by the prestress tensioning trolley can effectively reduce and eliminate the occurrence probability of side slip accidents of the tensioning trolley, and the running stability and the running safety of the prestress tensioning trolley are obviously improved.
Description
Technical Field
The invention belongs to the technical field of bridge engineering auxiliary construction equipment, and particularly relates to a prestress tensioning trolley.
Background
The prestress tensioning is to add tension in advance in the component, so that the prestressed tensioning component bears compressive stress, and the prestressed tensioning component generates certain deformation to cope with the load born by the structure. Before the engineering structural member bears external load, pre-stressing is applied to the tensioned steel strands so as to improve the bending resistance and rigidity of the member, delay the occurrence time of cracks, increase the durability of the member, and particularly for bridges, the increasing of the pre-stressing can obviously improve the bearing capacity of the bridge.
Therefore, a prestressed girder is generally used as one of the main structures of the bridge in the current mainstream bridge design. However, in the prestressed construction process, various different devices are required to be used, and the various devices cannot be integrated, so that the construction workload can be increased when the various devices are carried and assembled, the prestress tensioning efficiency of the beam body is low, and the construction period of the bridge is not facilitated to be accelerated. The prior art has not been provided with a prestress tensioning trolley capable of accurately positioning the position of tensioning equipment while meeting equipment integration.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
Disclosure of Invention
In order to achieve the above purpose, the invention provides the tensioning trolley which can integrate equipment used in prestress tensioning operation and accurately position the position of tensioning equipment, thereby being more convenient for applying prestress to a prestress beam. The invention provides the following technical scheme:
in a prestressed tensioning trolley, the improvement comprising:
the chassis system comprises a frame which is arranged parallel to the ground, and the frame comprises a frame body which is arranged in the same horizontal plane and is formed by rods which are vertically connected in the transverse direction and the longitudinal direction; four wheels connected with the frame; each wheel is connected with a speed reducing mechanism and a motor, so that four-wheel steering is achieved;
the lifter bracket comprises an upright post vertically arranged on the chassis system; the upright post is connected with a supporting plate arranged on the frame; the upright post comprises channel steel; a slide plate support is arranged in the upright post, and can slide in the upright post;
the lifting frame body comprises a frame structure formed by transverse rod pieces, longitudinal rod pieces and vertical rod pieces which are mutually perpendicular; the movable plate is arranged in the lifting frame body; the lifting frame body is connected with the lifting machine support through the sliding plate support so as to move in the vertical direction;
the pulley is arranged on the transverse rod piece at the top of the lifting frame body; the cross bar part at the top of the lifting frame body comprises an I-shaped beam; the pulley can slide in the I-beam;
a slip beam assembly comprising a rod-like member; is connected with the pulley;
the jack is hoisted on the sliding beam assembly; the jack can move on the sliding beam assembly through the pulley roller, and prestress is applied to the bridge anchor rod after the jack reaches a designated position.
Wherein the chassis system further comprises:
the swing frame comprises a frame body formed by rod pieces which are vertically connected in the transverse direction and the longitudinal direction and plate pieces; the swing frame is symmetrically arranged on the frame; the swing frame comprises two symmetrically arranged plates; a hole site is arranged on each plate;
the wheel bracket is provided with four wheel brackets which are respectively arranged corresponding to the four hole sites, and comprises a first through hole and a second through hole, the axes of which are mutually perpendicular, and the first through hole is arranged corresponding to the hole site; the second through hole is connected with the wheel;
the speed reducing mechanism comprises a rotary speed reducing driving mechanism; the four rotary speed reduction driving mechanisms are respectively arranged between the wheel bracket and the frame and connected to the hole site, so that four-wheel steering can be achieved;
a motor provided in each wheel bracket, connected to the wheel; four-wheel rotation can be achieved by transmitting power to each wheel.
Wherein, the frame includes:
the first frame body comprises a frame body formed by vertically connecting a first cross rod and a longitudinal rod; the first frame body is arranged in the center of the frame; the first rail has a first length; the length of the longitudinal rod corresponds to the width of the frame;
the second frame body comprises a frame body formed by vertically connecting a second cross rod and a longitudinal rod; are arranged on two sides of the frame; the second rail has a second length;
the connecting frame is used for connecting the first frame body and the second frame body; the first frame body and the second frame body are arranged at the bottoms of the first frame body and the second frame body.
Wherein, the link includes: and a frame structure formed by transverse connecting rods and longitudinal connecting rods which are mutually and perpendicularly connected.
Wherein, the wheel support includes: the first wheel plate, the second wheel plate and the steel pipe; a first through hole is formed in the first wheel plate; the steel pipe is provided with a second through hole; the second wheel plate is connected with the first wheel plate and the steel pipe.
The prestress tensioning trolley further comprises a ceiling; the ceiling comprises a plurality of transparent lighting tiles which are longitudinally overlapped.
The upright post comprises a pair of channel steel with opposite openings; both sides of the lifting frame body are simultaneously connected with slide plate brackets respectively arranged in the channel steel; the hydraulic driving device is arranged on the outer side of the upright post and used for driving and positioning the lifting position of the sliding plate support.
Wherein, the crossbeam subassembly that slides includes overlapping the connection in vertical direction and is the I-beam of a whole two unequal lengths: the long I-shaped beam arranged above the sliding beam assembly is connected with the pulley; the short I-beam arranged below the sliding beam assembly is connected with the lifting jack.
Wherein the pulley comprises a first pulley and a second pulley which are connected to the same pulley plate; the first sled includes: two groups of rollers which are oppositely arranged and have axes on the same horizontal plane; the rollers positioned on the same side are connected by a hanging plate.
The second pulley is arranged on the lower surface of the pulley plate, and is identical to the first pulley in structure, and the first pulley is rotated by 90 degrees and welded on the lower surface of the pulley plate in an inverted mode to form the second pulley.
Advantageous effects
First, the stability of the travel of the tensioning trolley can be significantly improved during steering. The four-wheel steering system can effectively reduce and eliminate the occurrence probability of side slip accidents of the tensioning trolley through in-phase steering of the rear wheels and the front wheels, and obviously improve the running stability and safety of the tensioning trolley.
And secondly, reducing the turning radius of the tensioning trolley when the tensioning trolley turns at a low speed. When the vehicle turns at a low speed, the turning radius of the tensioning trolley can be reduced by 20% due to the reverse turning of the front and rear wheels. Four-wheel steering technology gives large vehicles steering and parking agility as small vehicles.
And the four-wheel steering system greatly improves the follow-up property and the correctness of steering operation and improves the operability, the stability and the safety of the running of the tensioning trolley.
Simultaneously, the lifting machine support that this application adopted can accurate control lifting height of lifting frame body.
Through a plurality of pulleys of being connected with the crossbeam subassembly that slides, can realize the crossbeam subassembly that slides transversely and longitudinal movement thereby can realize more accurate location to the jack, the constructor work of being convenient for more.
The application adopts a plurality of lifting frame bodies so as to simultaneously apply prestress to a plurality of anchor rods or anchor cables, and greatly improves the prestress tensioning construction efficiency.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. Wherein:
fig. 1 is a perspective view of a tensioning trolley according to the present invention;
fig. 2 is a second perspective view of the tensioning carriage according to the present invention;
FIG. 3 is a perspective view of a chassis system in accordance with the present invention;
FIG. 4 is a second perspective view of the chassis system according to the present invention;
FIG. 5 is a perspective view of a vehicle frame according to the present invention;
FIG. 6 is a perspective view of a swing frame in accordance with the present invention;
FIG. 7 is a perspective view of a wheel carriage according to the present invention;
FIG. 8 is an assembly view of a wheel carriage in accordance with the present invention;
FIG. 9 is a perspective view of a lift bracket according to the present invention;
FIG. 10 is a front view of a lift bracket according to the present invention;
fig. 11 is a perspective view of a lifting frame according to the present invention;
fig. 12 is a perspective view of a frame structure of the lifting frame according to the present invention;
fig. 13 is a perspective view of a moving plate according to the present invention;
FIG. 14 is a schematic view of the bottom of a mobile plate according to the present invention;
fig. 15 is a perspective view of a sled according to the present invention;
FIG. 16 is a schematic view of a skid beam assembly in accordance with the present invention;
FIG. 17 is a schematic cross-sectional view of a slip beam assembly in accordance with the present invention;
fig. 18 is a perspective view of a ceiling according to the present invention;
fig. 19 is a perspective view of a ceiling mount according to the present invention;
FIG. 20 is a schematic illustration of the connection of a slip beam assembly in accordance with the present invention;
wherein, the chassis system 1, the 1-1 frame, the 1-2 swing frame, the 1-3 wheel bracket, the 1-4 speed reducing mechanism, the 1-5 motor, the 1-6 coaming and the 1-7 hanging frame;
1-1-1 first frame body, 1-1-2 second frame body, 1-1-3 connecting frame and 1-1-4 fixing frame;
1-2-1 plate and 1-2-2 reinforcing ribs;
1-3-1 first wheel plate, 1-3-2 second wheel plate and 1-3-3 steel pipe;
the device comprises a lifter bracket 2, an upright post 2-1, a slide plate bracket 2-2 and a supporting plate 2-3;
the lifting frame comprises a lifting frame body 3, a frame structure 3-1, a moving plate 3-2, a connecting rod 3-3 and a cross rod piece 3-4;
the pulley 4, the first pulley 4-1, the second pulley 4-2, the pulley plate 4-3 and the hanging plate 4-4;
a slip beam assembly 5;
a ceiling 6, a ceiling bracket 6-1 and a vertical rod 6-2;
a control cabinet 7;
a pull rod assembly 8.
Detailed Description
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments, which are derived by a person skilled in the art based on the embodiments of the invention, fall within the scope of protection of the invention.
In the description of the present invention, the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", etc. refer to the orientation or positional relationship based on that shown in the drawings, merely for convenience of description of the present invention and do not require that the present invention must be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. The terms "coupled" and "connected" as used herein are to be construed broadly and may be, for example, fixedly coupled or detachably coupled; either directly or indirectly through intermediate components, the specific meaning of the terms being understood by those of ordinary skill in the art as the case may be.
The invention will be described in detail below with reference to the drawings in connection with embodiments. It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
Prestressed beams are commonly used as one of the main structures of bridges in the current mainstream bridge design. However, in the prestressed construction process, various different devices are required to be used, and the various devices cannot be integrated, so that the construction workload is increased, the prestress tensioning efficiency of the beam body is low, and the construction period of the bridge is not facilitated to be shortened.
Accordingly, there is a need to provide an improved solution to the above-mentioned deficiencies of the prior art.
As shown in fig. 1-2, the present application relates to a prestressed tensioning trolley, the improvement comprising: the chassis system 1 comprises a frame which is arranged parallel to the ground, and the frame comprises a frame body which is arranged in the same horizontal plane and is formed by rods which are vertically connected in the transverse direction and the longitudinal direction; four wheels connected with the frame; each wheel is connected with a speed reducing mechanism and a motor, so that four-wheel steering is achieved;
the lifter bracket 2 comprises an upright post vertically arranged on the chassis system; the upright post is connected with a supporting plate arranged on the frame; the upright post comprises channel steel; a slide plate support is arranged in the upright post, and can slide in the upright post;
the lifting frame body 3 comprises a frame structure formed by transverse rod pieces, longitudinal rod pieces and vertical rod pieces which are mutually perpendicular; the movable plate is arranged in the lifting frame body; the lifting frame body is connected with the lifting machine support through the sliding plate support so as to move in the vertical direction;
the pulley 4 is arranged on the transverse rod piece at the top of the lifting frame body; the cross bar part at the top of the lifting frame body comprises an I-shaped beam; the pulley can slide in the I-beam;
a slip beam assembly 5 comprising a rod-like member; is connected with the pulley;
the jack is hoisted on the sliding beam assembly; the jack can move on the sliding beam assembly through the pulley roller, and prestress is applied to the bridge anchor rod after the jack reaches a designated position.
As shown in fig. 3 to 4, the chassis system 1 adopted in the present application includes: frame 1-1, swing frame 1-2 and wheel support 1-3.
Specifically, the frame 1-1 is arranged parallel to the ground and comprises a frame body formed by rods which are arranged in the same horizontal plane and are vertically connected in the transverse direction and the longitudinal direction. Specifically, the frame is a main structure forming the chassis system of the tensioning trolley, and can be made of steel plates to form a plate-shaped body. Wherein the rod piece arranged transversely is a cross rod; the rod piece which is longitudinally arranged is a longitudinal rod; the cross bars and the longitudinal bars are symmetrically arranged along the central line of the frame body.
Preferably, as shown in fig. 5, the frame 1-1 comprises a first frame body 1-1-1, and comprises a frame body formed by vertically connecting a first cross rod and a longitudinal rod; the first frame body is arranged in the center of the frame; the first rail has a first length; the length of the longitudinal rod corresponds to the width of the frame. Specifically, the first frame body forms a main frame body of the frame, the length of the main frame body at least occupies 1/2 of the length of the whole frame, and a plurality of first transverse rods which are arranged in parallel, namely long transverse rods, are intersected with a plurality of longitudinal rods which are arranged in parallel longitudinally and are welded at an angle of 90 degrees.
The second frame body 1-1-2 comprises a frame body formed by vertically connecting a second cross rod and a longitudinal rod; are arranged on two sides of the frame; the second rail has a second length. Specifically, the second frame body forms a sub-frame body of the frame and is transversely arranged at two sides of the frame, the length of the second cross rod is about 1/4 of the length of the whole frame, and the axis of the short cross rod needs to be kept on the same horizontal line with the axis of the long cross rod.
The first frame body is connected with the second frame body by a connecting frame 1-1-3. The connecting frame needs to play a role in connecting the main frame body and the auxiliary frame body, and also needs to bear the functions of supporting and connecting the subsequent swinging frames, so that the connecting frames 1-1-3 need to be arranged at the bottoms of the main frame body and the auxiliary frame body.
The connecting frame 1-1-3 can comprise a plurality of transverse connecting rods which are longitudinally added and are directly welded at the bottoms of the main frame body and the auxiliary frame body. Preferably, as shown in fig. 2, the connecting frame 1-1-3 comprises a frame structure formed by transverse connecting rods and longitudinal connecting rods which are connected vertically, and is connected with the main frame body and the auxiliary frame body through vertical connecting rods which are welded at the bottoms of the main frame body and the auxiliary frame body respectively and are vertical to the ground. Preferably, in order to enhance the connection and supporting effects, the transverse connection rod may be extended, and a reinforcing rod having the same extension length as that of the main frame body and the sub frame body may be disposed at a corresponding position of the main frame body and the sub frame body, and the extension portion may be connected to the reinforcing rod by a vertical connection rod. Meanwhile, a connecting rod lug plate with a hole site is arranged on the longitudinal connecting rod and is used for being connected with the swing frame 1-2 subsequently.
The swing frame 1-2, as shown in figure 6, comprises a frame body formed by a rod piece and a plate piece which are vertically connected in the transverse direction and the longitudinal direction, and is symmetrically arranged on the frame 1-1; the swing frame comprises symmetrically arranged plates; and hole sites are arranged on each plate. Specifically, the swing frame is symmetrically arranged along the longitudinal center line of the frame 1-1 and is respectively arranged on the connecting frames 1-1-3 for connecting the main frame body and the auxiliary frame body. The plates are symmetrically arranged along the transverse center line of the frame 1-1. The swing frame can be a plate-shaped object, and only hole sites are needed to be arranged for the subsequent installation of a wheel bracket for connecting wheels. Preferably, the swing frame 1-2 used in the present application includes two plate members 1-2-1 at both ends of the swing frame 1-2 and a rod member for connecting the two plate members for the sake of simple material and reduced weight. Specifically, the two longitudinal bars are arranged outside the two plate pieces 1-2-1 corresponding to the width of the frame; the two cross bars are welded on the inner side of the plate, i.e. the movable side of the plate, and are welded with the two longitudinal bars at the same time in order to limit the longitudinal movement of the plate. Hole sites are arranged on the plate and are used for the subsequent connecting wheel bracket. Preferably, in order to strengthen the supporting strength of the plate, reinforcing ribs 1-2-2 which are transversely and longitudinally vertically intersected are also arranged on the surface of the plate; the reinforcing ribs need to be staggered with the hole sites arranged on the plate.
The lower part of the swing frame 1-2 is also provided with a swing frame lug plate corresponding to the connecting rod lug plate.
The wheel brackets 1-3 are provided with four wheel brackets which are respectively corresponding to the four hole sites, and each wheel bracket comprises a first through hole and a second through hole with mutually perpendicular axes, wherein the first through holes are corresponding to the hole sites; the second through hole is connected with the wheel. Specifically, as shown in fig. 5, the wheel bracket 1-3 includes a first wheel plate 1-3-1 and a second wheel plate 1-3-2 which are disposed perpendicularly to each other and are each of a plate-like structure. The first wheel plate is provided with a first through hole which corresponds to the hole position on the swing frame in size. The steel tube 1-3-3 is provided with a second through hole, the axis of the steel tube 1-3-3 is perpendicular to the axis of the first through hole, and the first wheel plate 1-3-1 is connected with the steel tube 1-3-3 through the second wheel plate 1-3-2.
The speed reducing mechanism 1-4 comprises a rotary speed reducing driving mechanism, as shown in fig. 8, the rotary speed reducing driving mechanism adopts a rotary speed reducer commonly used in the market, and the four rotary speed reducing driving mechanisms are respectively arranged at the corresponding hole positions of the wheel bracket 1-3 and the swing frame 1-2 and are coaxial with the hole positions; bolts uniformly arranged on the outer ring of the hole position fixedly connect the swing frame 1-2, the rotary speed reduction driving mechanism and the wheel bracket 1-3.
The motors 1-5 are arranged in each wheel bracket and are connected with the wheels; four-wheel rotation can be achieved by transmitting power to each wheel.
As shown in fig. 8, corresponding ear plates are further required to be arranged on the swinging support and the connecting frame, wherein the two ear plates are connected through a pin, and the swinging support can swing for 3 degrees on the connecting frame through the ear plates. The wheel support 1-3 is rotated around the axis of the first through hole by the hydraulic driving rotary speed reduction driving mechanism so as to realize wheel steering.
The chassis system to which the present application relates further includes: the fixing frames 1-1-4 comprise rod-shaped objects which are uniformly arranged at the edge of the frame perpendicular to the ground; the fixed frame connected with the longitudinal rod comprises a first fixed rod which is perpendicular to the ground and is uniformly arranged at the edge of the frame, and a second fixed rod which is connected with the first fixed rod at an acute angle and is connected to the longitudinal rod. The cross sections of the first fixing rod, the second fixing rod and the longitudinal rod form a right triangle, so that the stability of the frame can be enhanced. 1-6, comprising a plate-shaped body; surrounding the frame perpendicular to the ground; the coaming is attached to the fixing frame.
The chassis system to which the present application relates further includes: the hanging frames 1-7 comprise frames formed by rod pieces; is transversely fixed at two ends of the frame; for placing the control cabinet 7.
The chassis system to which the present application relates further includes: 2-3, which are plate-shaped objects; is arranged on the frame 1-1. The supporting plate is arranged according to construction requirements and is used for bearing facilities such as a lifting frame for connecting a tensioning trolley.
The lifter bracket 2, as shown in fig. 9, comprises an upright post 2-1 vertically arranged on the chassis system, and the bottom of the upright post is connected with the chassis system through a supporting plate. Specifically, the upright posts adopt channel steel, and the notch of two channel steel is relatively arranged to form a group of upright posts so as to be provided with a slide plate bracket connected with a subsequent lifting frame body at the notch. The sliding plate support comprises a clamping plate structure, can be clamped and slide in the channel steel, and can enable the lifting frame to slide vertically on the channel steel.
Preferably, an independent slide plate support 2-2 is provided in each upright, the slide plate supports in two opposite uprights forming a set of slide plate supports. In order to ensure that the slide plate supports can synchronously lift, two slide plate supports of each group are connected by a steel wire rope, and a protective cover plate is arranged to shield the steel wire rope on the frame 1-1. The protective cover plate comprises a plate-shaped object, is arranged on the frame 1-1 and is connected with the supporting plate 2-3.
Preferably, the bottom of the channel steel is provided with a reinforcing rib. The reinforcing ribs are simultaneously connected with the channel steel and the protective cover plate, and the sections of the reinforcing ribs and the channel steel and the protective cover plate are in right-angled triangle shapes.
Preferably, a hydraulic driving device is arranged outside the upright post and connected with the slide plate bracket for driving and positioning the lifting position of the slide plate bracket.
Preferably, when more than one group of channels is provided, channels located at intermediate positions may be connected as a unit. Specifically, two lifting frame bodies are adopted in the embodiment of the application, so that two pairs of lifting frame bodies are required to be arranged in the application. As shown in fig. 9 and 10, two upright posts placed in the middle position weld the smooth sides together to form a whole, and are respectively arranged opposite to the independent channel steel to form two groups of corresponding upright posts 2-1.
Preferably, as shown in fig. 1, in order to achieve a better fixing effect of the lifter support 2, a pull rod assembly 8 is further provided. The pull rod assembly includes a shaft, and in the preferred embodiment of the present application, the pull rod assembly employs a lead screw, the length of which can be conveniently adjusted at the time of installation. Each upright 2-1 is fixed by two symmetrically placed tie rod assemblies. One end of the pull rod assembly is connected with the upright post 2-1 through bolts or riveted, and the other end of the pull rod assembly is connected with the frame 1-1 through bolts or riveted.
As shown in fig. 11 and 12, the lifting frame body 3 according to the present application includes a frame structure 3-1 composed of a transverse bar member, a longitudinal bar member and a vertical bar member disposed perpendicularly to each other, that is, includes a tetrahedral frame body composed of a plurality of bars disposed in parallel and intersecting with each other in the transverse, longitudinal and vertical directions; and a moving plate 3-2 arranged in the lifting frame body; the lifting frame body is connected with the lifting frame and moves in the vertical direction through the lifting frame.
The method comprises the following steps: the lifting frame body 3 comprises a bottom frame formed by intersecting a plurality of transverse rods and longitudinal rods which are arranged in parallel, a rear frame body formed by intersecting a plurality of transverse rods and rods which are arranged in parallel in the vertical direction, and two corresponding side frame bodies formed by a plurality of rods which are arranged in parallel and extend in the vertical direction.
The lifting frame body is connected with the slide plate support of the lifter support through a connecting rod, so that the lifting frame body can move in the vertical direction. Wherein the longitudinal rod can be used as a connecting rod to be connected with the slide plate bracket.
As shown in fig. 13 and 14, the moving plate is a plate-like body, and reinforcing bars intersecting in the lateral and longitudinal directions are added to the bottom surface thereof for reinforcing the load-bearing capacity of the moving plate.
In order to enable the movable plate to move, a longitudinal connecting rod 3-3 is arranged at the bottom of the lifting frame body 3, so that the movable plate can be clamped in the connecting rod, and sliding in the connecting rod can be realized.
Preferably, the cross bar member 3-4 arranged at the top of the lifting frame body adopts an I-beam for connecting a subsequent pulley, so that the pulley slides in the connecting rod at the top of the lifting frame body.
Wherein, as shown in fig. 15, the trolley 4 comprises a first trolley 4-1 and a second trolley 4-2, and the first trolley and the second trolley are connected by the same trolley plate 4-3. The first coaster setting includes at the upper surface of coaster plate: two sets of rollers arranged oppositely; in order to enable the pulley to slide on two sides of the I-beam at the top of the lifting frame body, a gap corresponding to the thickness of the I-beam is reserved at the center of the roller which is oppositely placed; the axes of the two groups of rollers are also required to be on the same horizontal plane.
The rollers on the same side are connected by hanging plates 4-4. Bolts which are axially parallel to the rollers are arranged between the two opposite hanging plates; the center of the bolt is also provided with a connecting plate vertical to the pulley plate, which is used for enhancing the connection and bearing strength of the pulley 4; the connecting plate and the hanging plate are welded with the pulley plate.
The second pulley is arranged on the lower surface of the pulley plate, and the second pulley is formed by rotating the first pulley by 90 degrees and inversely welding the first pulley on the lower surface of the pulley plate 4-3 by adopting the same structure as the first pulley.
Wherein, as shown in fig. 16 and 17, the sliding beam assembly 5 is longitudinally arranged and connected with the lifting frame 3 through the pulley 4. The sliding beam assembly 5 includes two i-beams that are connected to each other in a vertical direction as a unit. The length of the two I-beams is different, the long I-beam arranged above the sliding beam assembly is used for placing a pulley, and the rollers of the pulley roll in the long I-beam and the cross bar piece 3-4, so that the sliding beam assembly can move transversely and longitudinally through the pulley at the same time, and the whole extension, retraction and positioning of the sliding beam assembly can be ensured. The short I-beam arranged below the sliding beam assembly is used for placing a lifting jack, and pulley rollers of the lifting jack roll on the short I-beam, so that the jack moves along with the pulley on the short I-beam, and the sliding retraction length and the positioning of the jack are ensured. The jack is provided with a driving rope and a hoisting rope, and the jack commonly used in the prior art is adopted. The pulley idler wheels comprise one or two groups of idler wheels which are oppositely arranged, and hanging plate holes are formed below the pulley idler wheels and are used for hanging the jack.
As shown in fig. 18 and 19, the prestress tensioning trolley according to the present application further includes a ceiling 6 formed by overlapping a plurality of longitudinally arranged transparent lighting tiles.
A ceiling bracket 6-1 is arranged at the bottom of the ceiling 6 and is connected to the lifting frame body, in particular to a cross bar 3-4 which is used for arranging the ceiling bracket 6-1 at the top of the lifting frame body. The ceiling support comprises a plurality of rods which are transversely and longitudinally intersected and uniformly arranged so as to fix the transparent lighting tiles on the ceiling support. The ceiling support is connected with the cross bar piece 3-4 through the vertical rods 6-2, and the two ends of the ceiling support adopt the vertical rods with different lengths, so that the ceiling can form an inclined angle of 5 degrees.
The ceiling 6 is connected to the lifting frame body, so that the structural stability of the lifting frame body can be improved, the lighting effect of the prestress tensioning trolley can be improved, and the dependence on electric power illumination can be reduced. Meanwhile, brighter light effect is provided for construction operation in poor weather.
Application scene:
the chassis system 1 is used to move the prestressed tensioning trolley to the side of the specified prestressed beam. The construction worker is required to stand on the moving plate 3-2 of the lifting frame 3. The hydraulic driving device controls the movement of the slide plate support 2-2 arranged in the upright post 2-1 to enable the lifting frame body 3 to move along the upright post 2-1, and the height of the upright post 2-1 is the maximum movement height of the lifting frame body 3.
As shown in fig. 20, the trolley 4 is provided on the cross bar members 3-4 of the lifting frame 3, and in order to maintain the balance of the sliding cross bar assembly 5, the trolley 4 is required to be provided on the front and rear cross bar members 3-4 of the lifting frame 3. In particular, the first carriage 4-1 of the carriage 4 is arranged on the cross bar member 3-4, in which case the carriage 4 can be moved laterally, i.e. left and right, on the cross bar member 3-4. The long i-beam of the sliding beam assembly 5 passes through the second trolley 4-2 of the trolley 4, because the first trolley 4-1 is identical in construction to the second trolley 4-2, but the second trolley is rotated 90 ° and is arranged upside down with respect to the first trolley 4-1, so that the sliding beam assembly 5 is able to perform a longitudinal movement, i.e. a back-and-forth movement, with respect to the cross bar member 3-4 when connected to the second trolley 4-2. The pulley 4 is controlled by a control device provided by a control cabinet 7, and the sliding beam assembly 5 can be accurately positioned. The short I-beam arranged below the sliding beam assembly is used for placing a lifting jack, and pulley rollers of the lifting jack roll on the short I-beam, so that the jack longitudinally moves on the short I-beam along with the pulley. The lifting rope of the jack can enable the lifting rope to vertically move, namely, move up and down so as to adjust the height. When the jack is adjusted in height, the worker uses the jack to perform prestress application operation on the prestress beam. The short I-beam below the sliding beam assembly limits the longitudinal movement distance of the jack, so that the operation safety of constructors can be ensured, and the constructors cannot be impacted due to the fact that the jack is too close to the rear.
The application adopts two sets of upright posts 2-1 which are oppositely arranged to form two sets of lifter brackets 2. Therefore, two lifting frame bodies 3 can be arranged, and the positioning is controlled through pulleys connected with the two lifting frame bodies, so that the application can respectively apply prestress to different anchor rods/anchor ropes by adopting two jacks which are not mutually interfered.
The foregoing description of the preferred embodiments of the invention is not intended to limit the invention to the particular embodiments disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A prestressed tensioning trolley, characterized in that the tensioning trolley comprises:
the chassis system comprises a frame which is arranged parallel to the ground, and the frame comprises a frame body which is arranged in the same horizontal plane and is formed by rods which are vertically connected in the transverse direction and the longitudinal direction; four wheels connected with the frame; each wheel is connected with a speed reducing mechanism and a motor, so that four-wheel steering is achieved;
the lifter bracket comprises an upright post vertically arranged on the chassis system; the upright posts are connected with the supporting plates arranged on the frame; the upright post comprises channel steel; a slide plate support is arranged in the upright post, and the slide plate support can slide in the upright post;
the lifting frame body comprises a frame structure formed by transverse rod pieces, longitudinal rod pieces and vertical rod pieces which are mutually perpendicular; and a moving plate disposed inside the lifting frame body; the lifting frame body is connected with the lifter support through the sliding plate support so as to move in the vertical direction;
the pulley is arranged on the transverse rod piece at the top of the lifting frame body; the cross bar piece at the top of the lifting frame body comprises an I-shaped beam; the pulley can slide in the I-beam;
a slip beam assembly comprising a rod-like member; is connected with the pulley;
the jack is hoisted on the sliding beam assembly; the jack can move on the sliding beam assembly through a pulley roller, and prestress is applied to the bridge anchor rod after the jack reaches a designated position;
the chassis system further comprises:
the swing frame comprises a frame body formed by rod pieces which are vertically connected in the transverse direction and the longitudinal direction and plate pieces; the swing frame is symmetrically arranged on the frame; the swing frame comprises two symmetrically arranged plates; a hole site is arranged on each plate;
the wheel bracket is provided with four wheel brackets which are respectively arranged corresponding to the four hole sites, the wheel bracket comprises a first through hole and a second through hole, the axes of the first through hole and the second through hole are mutually perpendicular, and the first through hole is arranged corresponding to the hole site; the second through hole is connected with the wheel;
the speed reducing mechanism comprises a rotary speed reducing driving mechanism; the four rotary speed reduction driving mechanisms are respectively arranged between the wheel bracket and the frame and connected to the hole site, so that four-wheel steering can be achieved;
a motor provided in each of the wheel brackets, connected to the wheels; for transmitting power to each of the wheels, four-wheel rotation can be achieved;
the frame comprises:
the first frame body comprises a frame body formed by vertically connecting a first cross rod and a longitudinal rod; the first frame body is arranged in the center of the frame; the first rail has a first length; the length of the longitudinal rod corresponds to the width of the frame;
the second frame body comprises a frame body formed by vertically connecting a second cross rod and a longitudinal rod; are arranged on two sides of the frame; the second rail has a second length;
the connecting frame is used for connecting the first frame body and the second frame body; the first frame body and the second frame body are arranged at the bottoms of the first frame body and the second frame body;
the connecting frame comprises: a frame structure formed by transverse connecting rods and longitudinal connecting rods which are mutually and perpendicularly connected;
a connecting rod lug plate provided with a hole site is arranged on the longitudinal connecting rod;
a swing frame lug plate corresponding to the connecting rod lug plate is arranged below the swing frame;
the connecting rod lug plate and the swing frame lug plate are connected through a pin shaft, and the swing frame can reach a swing range of 3 degrees on the connecting frame.
2. The prestressed tensioning trolley of claim 1 wherein said wheel carriage includes: the first wheel plate, the second wheel plate and the steel pipe; the first through hole is formed in the first wheel plate; the steel pipe is provided with the second through hole; the second wheel plate is connected with the first wheel plate and the steel pipe.
3. The prestressed tensioning trolley of claim 1 further comprising a ceiling; the ceiling comprises a plurality of transparent daylighting tiles which are longitudinally overlapped.
4. The prestressed tensioning trolley of claim 1 wherein said upright includes a pair of open-faced channel steel; both sides of the lifting frame body are simultaneously connected with slide plate brackets respectively arranged in the channel steel; and a hydraulic driving device is arranged on the outer side of the upright post and used for driving and positioning the lifting position of the sliding plate support.
5. The prestressed tensioning truck according to claim 1, wherein the slip beam assembly includes two i-beams of unequal length vertically stacked together as a unit: the long I-shaped beam arranged above the sliding beam assembly is connected with the pulley; the short I-beam arranged below the sliding beam assembly is connected with the lifting jack.
6. The prestressed tensioning trolley of claim 1 wherein the trolley includes a first trolley and a second trolley connected to the same trolley plate member; the first sled includes: two groups of rollers which are oppositely arranged and have axes on the same horizontal plane; the rollers positioned on the same side are connected by a hanging plate.
7. The prestressed tensioning trolley of claim 6 wherein a second trolley is disposed on the lower surface of the trolley plate and is constructed in the same manner as the first trolley by rotating the first trolley by 90 ° and welding the first trolley upside down on the lower surface of the trolley plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311361261.1A CN117090400B (en) | 2023-10-20 | 2023-10-20 | Prestress tensioning trolley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311361261.1A CN117090400B (en) | 2023-10-20 | 2023-10-20 | Prestress tensioning trolley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117090400A CN117090400A (en) | 2023-11-21 |
| CN117090400B true CN117090400B (en) | 2024-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202311361261.1A Active CN117090400B (en) | 2023-10-20 | 2023-10-20 | Prestress tensioning trolley |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108860308A (en) * | 2018-08-09 | 2018-11-23 | 辽宁工业大学 | A kind of omnidirectional's electric drive platform truck |
| CN208543625U (en) * | 2018-07-04 | 2019-02-26 | 湖南联智智能科技有限公司 | A kind of precast beam production line tensioning trolley |
| CN208844424U (en) * | 2018-09-18 | 2019-05-10 | 河南省公路工程局集团有限公司 | Multifunctional assembled construction trolley |
| CN212052335U (en) * | 2019-12-28 | 2020-12-01 | 武汉希萌科技有限公司 | Tensioning trolley |
| CN216505885U (en) * | 2021-11-04 | 2022-05-13 | 中铁四局集团第二工程有限公司 | Cantilever type stretch-draw moving trolley |
-
2023
- 2023-10-20 CN CN202311361261.1A patent/CN117090400B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208543625U (en) * | 2018-07-04 | 2019-02-26 | 湖南联智智能科技有限公司 | A kind of precast beam production line tensioning trolley |
| CN108860308A (en) * | 2018-08-09 | 2018-11-23 | 辽宁工业大学 | A kind of omnidirectional's electric drive platform truck |
| CN208844424U (en) * | 2018-09-18 | 2019-05-10 | 河南省公路工程局集团有限公司 | Multifunctional assembled construction trolley |
| CN212052335U (en) * | 2019-12-28 | 2020-12-01 | 武汉希萌科技有限公司 | Tensioning trolley |
| CN216505885U (en) * | 2021-11-04 | 2022-05-13 | 中铁四局集团第二工程有限公司 | Cantilever type stretch-draw moving trolley |
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|---|---|
| CN117090400A (en) | 2023-11-21 |
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Effective date of registration: 20231220 Address after: No. 15 Beihuan East Road, Chang'an District, Shijiazhuang City, Hebei Province, 050011 Applicant after: HEBEI YITIE ELECTROMECHANICAL TECHNOLOGY CO.,LTD. Applicant after: China Railway ninth Bureau Group No.3 Construction Co.,Ltd. Address before: 528200 unit 507, floor 5, building 11, Fengming Plaza, No. 7, Shugang Road, Guicheng Street, Nanhai District, Foshan City, Guangdong Province Applicant before: China Railway ninth Bureau Group No.3 Construction Co.,Ltd. |
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