CN213923781U - Trolley for moving beam - Google Patents
Trolley for moving beam Download PDFInfo
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- CN213923781U CN213923781U CN202022457763.2U CN202022457763U CN213923781U CN 213923781 U CN213923781 U CN 213923781U CN 202022457763 U CN202022457763 U CN 202022457763U CN 213923781 U CN213923781 U CN 213923781U
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Abstract
The application relates to a platform truck for moving roof beam relates to the precast concrete unit field, and it includes: a frame; the jacking mechanism is arranged on the frame; the travelling wheel assembly comprises a travelling wheel and a driving unit, and the travelling wheel is arranged at the bottom of the frame; the driving unit is connected with the travelling wheel; the power source is connected with the driving unit and the jacking mechanism and used for providing power for the driving unit and the jacking mechanism so as to enable the jacking mechanism to jack or lower the bottom die bearing the bridge prefabricated part; the power source also enables the driving unit to drive the travelling wheels to travel to the hoisting position on the preset track. In the moving and transporting process, the travelling wheels slowly start and travel after jacking the bottom die, and the travelling wheels move the trolley forward at a constant speed after starting, so that the bridge prefabricated member and the trolley synchronously run, and the potential safety hazard of toppling over the bridge prefabricated member is eliminated. Therefore, the moving speed is improved on the premise of ensuring the stability and safety of the moving process.
Description
Technical Field
The application relates to the field of concrete member prefabrication, in particular to a trolley for moving a beam.
Background
With the development of construction technology, more and more prefabricated parts are more prone to factory production. At present, in the construction of factory prefabricated components, because the conditions of a workshop are limited, hoisting equipment may not meet the operation requirements of safe hoisting and moving to a storage area and the like of large-size and overweight prefabricated components, the common moving mode is to move the prefabricated components to the outside of the workshop through a sliding track system in the workshop and then use a large hoisting machine for hoisting and storing.
In the related technology, a winch is usually adopted for traction and slippage, and the trolley is not moved when the pulling force of the winch does not exceed the friction force between the trolley and the track in the moving process; when the pulling force of hoist engine surpasss the condition of walking suddenly in the twinkling of an eye of the frictional force between platform truck and track, the platform truck can appear, and prefabricated component has the potential safety hazard of empting. And in the moving process of the trolley, the traction speed of the winch needs to be controlled at any time. In addition, the phenomenon of rail clamping can occur in the moving process of the trolley, the phenomenon of breaking of a steel wire rope of the winch can be caused, and the potential safety hazard is great.
Disclosure of Invention
The embodiment of the application provides a platform truck for moving roof beam to adopt the hoist engine to pull among the solution correlation technique and slide, lead to moving the transportation process unstable, have the potential safety hazard, and the slow problem of traction speed.
In a first aspect, a trolley for moving a beam is provided, comprising:
a frame;
the jacking mechanism is arranged on the frame;
the travelling wheel assembly comprises a travelling wheel and a driving unit, and the travelling wheel is arranged at the bottom of the frame; the driving unit is connected with the travelling wheels;
the power source is connected with the driving unit and the jacking mechanism and used for providing power for the driving unit and the jacking mechanism so as to enable the jacking mechanism to jack or lower the bottom die bearing the bridge prefabricated part; the power source also enables the driving unit to drive the travelling wheels to travel to a lifting position on a preset track.
In some embodiments, the trolley further comprises a first control device and a second control device, wherein the first control device is connected with the power source and is used for controlling the jacking of the jacking mechanism; and the second control device is connected with the power source and is used for controlling the walking of the walking wheels.
In some embodiments, the power source comprises:
the hydraulic oil tank is arranged on the frame;
the oil pump is arranged on the frame, an oil inlet of the oil pump is connected with the hydraulic oil tank, and an oil outlet of the oil pump is connected with the driving unit and the jacking mechanism;
the first control device is connected with the oil pump and is used for controlling the oil pump to input the hydraulic oil in the hydraulic oil tank into the jacking mechanism;
and the second control device is connected with the oil pump and is used for controlling the oil pump to input the hydraulic oil in the hydraulic oil tank into the driving unit.
In some embodiments, the first control device is a hydraulic control valve.
In some embodiments:
the power source also comprises at least two first connecting components, and each first connecting component corresponds to one driving unit;
the first connecting assembly comprises a three-way electromagnetic valve and three first oil paths, one of the first oil paths is connected with the oil pump and the inlet of the three-way electromagnetic valve, one end of each of the other two first oil paths is connected with the outlet of the three-way electromagnetic valve, and the other end of each of the other two first oil paths is connected with the driving unit;
the second control device is also connected with the three-way electromagnetic valve and is used for controlling the opening and closing of the three-way electromagnetic valve.
In some embodiments:
the power source also comprises at least two second connecting assemblies, and each second connecting assembly corresponds to one driving unit;
the second connecting assembly comprises four-way electromagnetic valves and two second oil paths, inlets of the two adjacent four-way electromagnetic valves are communicated through a third oil path, and the third oil path is communicated with the oil pump;
one end of each of the two second oil paths is connected with the outlet of the four-way electromagnetic valve, and the other end of each of the two second oil paths is communicated with the driving unit;
the second control device is also connected with the four-way electromagnetic valve and is used for controlling the four-way electromagnetic valve to be opened and closed.
In some embodiments:
the power source further comprises a third connecting assembly, the third connecting assembly comprises two fourth oil paths, and one ends of the two fourth oil paths are respectively connected to the top end and the bottom end of the jacking mechanism;
the first control device is connected with the other ends of the two fourth oil paths and used for controlling the on-off of the two fourth oil paths.
In some embodiments, the jacking mechanism comprises four hydraulic cylinders, and the four hydraulic cylinders are distributed at intervals along the circumferential direction of the frame.
In some embodiments, the drive unit is a hydraulic motor.
The beneficial effect that technical scheme that this application provided brought includes: this application adopts a power supply to provide power for drive unit and climbing mechanism, improve the integrated level of platform truck, reduce the volume of platform truck, and the power supply provides power for drive unit after, drive unit driving walking wheel walks under the die block that bears the weight of the bridge prefab, the power supply provides power for climbing mechanism again, climbing mechanism jacking die block, so that the die block breaks away from ground, and through the height of adjusting the climbing mechanism jacking, make the bridge prefab keep at balanced state, walk to lifting by crane the position on predetermined track through drive unit driving walking wheel at last, realize moving of bridge prefab and transport. In the moving and transporting process, the travelling wheels slowly start and travel after jacking the bottom die, and the travelling wheels move the trolley forward at a constant speed after starting, so that the bridge prefabricated member and the trolley synchronously run, and the potential safety hazard of toppling over the bridge prefabricated member is eliminated. Therefore, the moving speed is improved on the premise of ensuring the stability and safety of the moving process.
The embodiment of the application provides a platform truck for moving roof beam, because this application embodiment adopts a power supply to provide power for drive unit and climbing mechanism, improve the integrated level of platform truck, reduce the volume of platform truck, and the power supply provides power for drive unit after, drive unit driving walking wheel walks to bear the weight of under the die block of bridge prefab, the power supply provides power for climbing mechanism again, climbing mechanism jacking die block, so that the die block breaks away from ground, and through the height of adjusting the jacking of climbing mechanism, make the bridge prefab keep at balanced state, walk to lifting by crane the position on predetermined track through drive unit driving walking wheel at last, realize moving of bridge prefab and transport. In the moving and transporting process, the walking wheels slowly start and walk after jacking the bottom die, and the walking wheels move forward to move the trolley at a constant speed after starting, so that the bridge prefabricated member and the trolley run synchronously, and the potential safety hazard of toppling of the bridge prefabricated member is eliminated. And the moving speed is improved on the premise of ensuring the stability and safety of the moving process.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a front view of a trolley for moving a beam provided in embodiment 1 of the present application;
fig. 2 is a top view of a trolley for moving a beam provided in embodiment 1 of the present application;
fig. 3 is a top view of a trolley for moving a beam according to embodiment 2 of the present application;
FIG. 4 is a right side view of FIG. 3;
fig. 5 is a schematic state diagram of a trolley moving beam for moving a beam according to an embodiment of the present application.
In the figure: 1. a frame; 2. a jacking mechanism; 20. a hydraulic cylinder; 3. bridge prefabricated parts; 4. Bottom die; 5. a traveling wheel assembly; 50. a traveling wheel; 51. a drive unit; 6. a power source; 60. A hydraulic oil tank; 61. an oil pump; 62. a first connection assembly; 620. a three-way electromagnetic valve; 621. a first oil passage; 63. a second connection assembly; 630. a four-way solenoid valve; 631. a second oil passage; 632. A third oil passage; 64. a third connection assembly; 640. a fourth oil passage; 7. a first control device; 8. a second control device.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example 1:
referring to fig. 1 and 2, embodiment 1 of the present application provides a trolley for moving a beam, which includes a frame 1, a jacking mechanism 2, at least two road wheel assemblies 5 and a power source 6, where the jacking mechanism 2 is disposed on the frame 1; the walking wheel assembly 5 comprises walking wheels 50 and a driving unit 51, the walking wheels 50 are arranged at the bottom of the frame 1, and the driving unit 51 is connected with the walking wheels 50; the power source 6 is connected with the driving unit 51 and the jacking mechanism 2 and is used for providing power for the driving unit 51 and the jacking mechanism 2 so as to enable the jacking mechanism 2 to jack or lower the bottom die 4 bearing the bridge prefabricated part 3; the power source 6 also causes the driving unit 51 to drive the traveling wheels 50 to travel to the lifting position on a predetermined track.
This application embodiment 1 adopts a power supply 6 to provide power for drive unit 51 and climbing mechanism 2, improve the integrated level of platform truck, reduce the volume of platform truck, and power supply 6 provides power for drive unit 51 after, drive unit 51 road wheel 50 walks to bear the weight of under the die block 4 of bridge prefab 3, power supply 6 provides power for climbing mechanism 2 again, 2 jacking die blocks 4 of climbing mechanism, so that die block 4 breaks away from ground, and through the height of adjusting 2 jacking of climbing mechanism, make bridge prefab 3 keep at balanced state, walk to lifting position on the track of predetermineeing through drive unit 51 road wheel 50 at last, realize moving of bridge prefab 3 and transport. In the moving and transporting process, after the bottom die 4 is jacked up, the travelling wheels 50 start and travel slowly, and the travelling wheels 50 advance at a constant speed to move the trolley after starting, so that the bridge prefabricated member 3 and the trolley run synchronously, and the potential safety hazard of toppling over the bridge prefabricated member 3 is eliminated. Therefore, the moving speed is improved on the premise of ensuring the stability and safety of the moving process in the embodiment 1 of the application.
Optionally, referring to fig. 2, the trolley further comprises a first control device 7 and a second control device 8, wherein the first control device 7 is connected with the power source 6 and is used for controlling the jacking of the jacking mechanism 2; the second control device 8 is connected to the power source 6 and is used to control the traveling of the traveling wheels 50. In the embodiment 1 of the application, the power source 6 is controlled by the first control device 7 to provide power for the jacking mechanism 2, so that the jacking mechanism 2 jacks or lowers the bottom die 4 bearing the bridge prefabricated part 3; the second control device 8 controls the power source 6 to provide power for the driving unit 51, so that the driving unit 51 drives the travelling wheels 50 to travel to the lifting position on the preset track. The jacking mechanism 2 and the walking wheels 50 are integrated on the trolley, and the moving efficiency is improved through the step-by-step work of the jacking mechanism 2 and the walking wheels 50.
Further, as shown in fig. 2 and 3, the power source 6 includes a hydraulic oil tank 60 and an oil pump 61, the hydraulic oil tank 60 being provided on the frame 1; the oil pump 61 is arranged on the frame 1, an oil inlet of the oil pump 61 is connected with the hydraulic oil tank 60, and an oil outlet is connected with both the driving unit 51 and the jacking mechanism 2; the first control device 7 is connected with the oil pump 61 and is used for controlling the oil pump 61 to input the hydraulic oil in the hydraulic oil tank 60 into the jacking mechanism 2; the second control device 8 is connected to the oil pump 61 and is configured to control the oil pump 61 to supply the hydraulic oil in the hydraulic oil tank 60 to the drive unit 51.
The operating principle of the jacking mechanism 2 in embodiment 1 of the application is as follows:
the jacking mechanism 2 is communicated with the oil pump 61 through two oil pipes, and when hydraulic oil in the hydraulic oil tank 60 is pumped into the jacking mechanism 2 through one of the oil pipes through the oil pump 61, a piston rod of the jacking mechanism 2 is pushed to ascend so as to jack the bottom die 4; when hydraulic oil in the hydraulic oil tank 60 is pumped into the jacking mechanism 2 through the oil pump 61 via another oil pipe, the piston rod of the jacking mechanism 2 is pushed to descend, and the bottom die 4 is lowered.
The working principle of the walking wheel assembly 5 in embodiment 1 of the application is as follows:
the driving unit 51 is communicated with the oil pump 61 through two oil pipes, when hydraulic oil in the hydraulic oil tank 60 is pumped into the driving unit 51 through one oil pipe through the oil pump 61, the interior of the driving unit 51 is pushed by the pressure of the hydraulic oil, so that the rotor in the driving unit 51 continuously rotates clockwise, and forward power is provided; when the hydraulic oil in the hydraulic oil tank 60 is pumped into the driving unit 51 through another oil pipe by the oil pump 61, the driving unit 51 rotates in reverse, and the backward movement function is realized.
Preferably, the jacking mechanism 2 comprises four hydraulic oil cylinders 20, and the four hydraulic oil cylinders 20 are distributed at intervals along the circumferential direction of the frame 1; the drive unit 51 is a hydraulic motor. Four hydraulic cylinder 20 are more steady when jacking bridge prefab 3, and hydraulic cylinder 20 and hydraulic motor's response is quick, improve fortune roof beam efficiency.
Preferably, the first control device 7 is a hydraulic control valve. The pressure, the flow and the direction of the hydraulic oil are controlled by the hydraulic control valve to control the jacking force of the jacking mechanism 2, so that the jacking height is adjusted.
Further, referring to fig. 2, the power source 6 further includes at least two first connecting assemblies 62, and each first connecting assembly 62 corresponds to one driving unit 51; the first connecting assembly 62 comprises a three-way solenoid valve 620 and three first oil paths 621, wherein one first oil path 621 is connected with the oil pump 61 and the inlet of the three-way solenoid valve 620, one end of the other two first oil paths 621 is connected with the outlet of the three-way solenoid valve 620, and the other end of the other two first oil paths 621 are connected with the driving unit 51; the second control device 8 is also connected with the three-way solenoid valve 620 and is used for controlling the opening and closing of the three-way solenoid valve 620.
Specifically, the method comprises the following steps: the second control device 8 controls one outlet of the three-way electromagnetic valve 620 to be opened, hydraulic oil in the hydraulic oil tank 60 enters the driving unit 51 through the oil pump 61 through the first oil path 621 communicated with the outlet, and the driving unit 51 is pushed by the pressure of the hydraulic oil to realize continuous clockwise rotation of the rotor in the driving unit 51 and provide forward power; the second control device 8 controls the other outlet of the three-way electromagnetic valve 620 to be opened, the hydraulic oil in the hydraulic oil tank 60 enters the driving unit 51 through the first oil path 621 communicated with the outlet through the oil pump 61, and the interior of the driving unit 51 is pushed by the hydraulic oil pressure, so that the rotor in the driving unit 51 continuously rotates anticlockwise, and the backward power is provided.
Example 2:
further, referring to fig. 3 and 4, the power source 6 provided in embodiment 2 of the present application further includes at least two second connecting assemblies 63, where each second connecting assembly 63 corresponds to one driving unit 51; the second connecting assembly 63 comprises four-way solenoid valves 630 and two second oil paths 631, inlets of the two adjacent four-way solenoid valves 630 are communicated through a third oil path 632, and the third oil path 632 is communicated with the oil pump 61; one end of each of the two second oil paths 631 is connected to an outlet of the four-way solenoid valve 630, and the other end is communicated with the driving unit 51; the second control device 8 is also connected to the four-way solenoid valve 630 and is used to control the opening and closing of the four-way solenoid valve 630.
Specifically, the method comprises the following steps: the second control device 8 controls one outlet of the four-way solenoid valve 630 to be opened, hydraulic oil in the hydraulic oil tank 60 enters the driving unit 51 through the oil pump 61 via a second oil path 631 communicated with the outlet, and the driving unit 51 is pushed by the pressure of the hydraulic oil to realize continuous clockwise rotation of the rotor in the driving unit 51 and provide forward power; the second control device 8 controls the other outlet of the four-way solenoid valve 630 to be opened, the hydraulic oil in the hydraulic oil tank 60 enters the driving unit 51 through the oil pump 61 via the second oil path 631 communicated with the outlet, and the driving unit 51 is pushed by the hydraulic oil pressure to realize the continuous anticlockwise rotation of the rotor in the driving unit 51 and provide the backward power.
Further, referring to fig. 2 and 3, the power source 6 further includes a third connecting assembly 64, the third connecting assembly 64 includes two fourth oil paths 640, and one end of each of the two fourth oil paths 640 is connected to the top end and the bottom end of the jacking mechanism 2 respectively; the first control device 7 is connected to the other ends of the two fourth oil paths 640, and is configured to control on/off of the two fourth oil paths 640.
Specifically, the method comprises the following steps: the jacking mechanism 2 is a hydraulic oil cylinder 20, the hydraulic oil cylinder 20 comprises two cavities, a piston is movably connected in each cavity, a piston rod is connected to each piston, and each piston rod extends out of each cavity. The first control device 7 controls one of the fourth oil paths 640 to be opened, the fourth oil path 640 is connected with the bottom end of the jacking mechanism 2, hydraulic oil in the hydraulic oil tank 60 is pumped into a cavity without a piston rod from the bottom end of the jacking mechanism 2 through the fourth oil path 640 through the oil pump 61, and the piston rod is pushed to ascend so as to jack the bottom die 4; the first control device 7 controls the other fourth oil path 640 to be opened, the fourth oil path 640 is connected with the top end of the jacking mechanism 2, hydraulic oil in the hydraulic oil tank 60 is pumped into the cavity where the piston rod is located from the top end of the jacking mechanism 2 through the fourth oil path 640 through the oil pump 61, the piston rod is pushed to descend, and the bottom die 4 is placed below.
Example 3:
referring to fig. 5, embodiment 3 of the present application provides a beam moving method using the above-described trolley, which includes the following steps:
s1: moving the trolley to the position below a bottom die 4 bearing the bridge prefabricated part 3;
s2: driving the jacking mechanism 2 to jack up the bottom die 4;
s3: the travelling wheels 50 are driven to travel on a preset track to move the bottom mold 4 to the lifting position.
Specifically, the method comprises the following steps: after the power source 6 provides power for the driving unit 51, the driving unit 51 drives the travelling wheels 50 to travel to the position below the bottom die 4 bearing the bridge prefabricated part 3, then the power source 6 provides power for the jacking mechanism 2, the jacking mechanism 2 jacks the bottom die 4 to enable the bottom die 4 to be separated from the ground, the bridge prefabricated part 3 is kept in a balance state by adjusting the jacking height of the jacking mechanism 2, and finally the driving unit 51 drives the travelling wheels 50 to travel to a lifting position on a preset track to achieve moving and transporting of the bridge prefabricated part 3. In the moving and transporting process, after the bottom die 4 is jacked up, the travelling wheels 50 start and travel slowly, and the travelling wheels 50 advance at a constant speed to move the trolley after starting, so that the bridge prefabricated member 3 and the trolley run synchronously, and the potential safety hazard of toppling over the bridge prefabricated member 3 is eliminated. Therefore, the moving speed is improved on the premise of ensuring the stability and safety of the moving process in the embodiment 1 of the application.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be 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 present application can be understood by those of ordinary skill in the art as appropriate.
It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is merely exemplary of the present application and is presented to enable those skilled in the art to understand and practice the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A trolley for moving a beam, characterized in that it comprises:
a frame (1);
the jacking mechanism (2) is arranged on the frame (1);
the walking wheel assembly comprises at least two walking wheel assemblies (5), each walking wheel assembly (5) comprises a walking wheel (50) and a driving unit (51), and the walking wheels (50) are arranged at the bottom of the frame (1); the driving unit (51) is connected with the travelling wheel (50);
the power source (6) is connected with the driving unit (51) and the jacking mechanism (2) and is used for providing power for the driving unit (51) and the jacking mechanism (2) so as to enable the jacking mechanism (2) to jack or lower the bottom die (4) bearing the bridge prefabricated part (3); the power source (6) enables the driving unit (51) to drive the travelling wheels (50) to travel to a lifting position on a preset track.
2. The trolley for moving a beam according to claim 1, further comprising a first control device (7) and a second control device (8), wherein the first control device (7) is connected to the power source (6) and is used for controlling the jacking of the jacking mechanism (2); the second control device (8) is connected with the power source (6) and is used for controlling the walking of the walking wheels (50).
3. Trolley for moving beams according to claim 2, characterised in that said power source (6) comprises:
a hydraulic oil tank (60) provided on the vehicle frame (1);
the oil pump (61) is arranged on the frame (1), an oil inlet of the oil pump (61) is connected with the hydraulic oil tank (60), and an oil outlet of the oil pump is connected with the driving unit (51) and the jacking mechanism (2);
the first control device (7) is connected with the oil pump (61) and is used for controlling the oil pump (61) to input the hydraulic oil in the hydraulic oil tank (60) into the jacking mechanism (2);
the second control device (8) is connected with the oil pump (61) and is used for controlling the oil pump (61) to input the hydraulic oil in the hydraulic oil tank (60) into the driving unit (51).
4. Trolley for moving beams according to claim 2, characterised in that said first control means (7) are hydraulic control valves.
5. A trolley for moving a beam as claimed in claim 3, wherein:
the power source (6) further comprises at least two first connecting assemblies (62), each first connecting assembly (62) corresponding to one of the drive units (51);
the first connecting assembly (62) comprises a three-way electromagnetic valve (620) and three first oil paths (621), wherein one first oil path (621) is connected with the oil pump (61) and an inlet of the three-way electromagnetic valve (620), one end of each of the other two first oil paths (621) is connected with an outlet of the three-way electromagnetic valve (620), and the other end of each of the other two first oil paths is connected with the driving unit (51);
the second control device (8) is also connected with the three-way electromagnetic valve (620) and is used for controlling the opening and closing of the three-way electromagnetic valve (620).
6. A trolley for moving a beam as claimed in claim 3, wherein:
the power source (6) further comprises at least two second connecting assemblies (63), each second connecting assembly (63) corresponding to one of the drive units (51);
the second connecting assembly (63) comprises four-way solenoid valves (630) and two second oil paths (631), inlets of the two adjacent four-way solenoid valves (630) are communicated through a third oil path (632), and the third oil path (632) is communicated with the oil pump (61);
one end of each of the two second oil passages (631) is connected with the outlet of the four-way solenoid valve (630), and the other end of each of the two second oil passages is communicated with the driving unit (51);
the second control device (8) is also connected with the four-way electromagnetic valve (630) and is used for controlling the four-way electromagnetic valve (630) to be opened and closed.
7. A trolley for moving a beam as claimed in claim 3, wherein:
the power source (6) further comprises a third connecting assembly (64), the third connecting assembly (64) comprises two fourth oil paths (640), and one ends of the two fourth oil paths (640) are respectively connected to the top end and the bottom end of the jacking mechanism (2);
and the first control device (7) is connected with the other ends of the two fourth oil paths (640) and is used for controlling the on-off of the two fourth oil paths (640).
8. The trolley for shifting beams according to claim 1, characterized in that the jacking mechanism (2) comprises four hydraulic cylinders (20), the four hydraulic cylinders (20) being spaced apart along the circumference of the frame (1).
9. Trolley for moving beams according to claim 1, characterised in that said driving unit (51) is a hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022457763.2U CN213923781U (en) | 2020-10-29 | 2020-10-29 | Trolley for moving beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022457763.2U CN213923781U (en) | 2020-10-29 | 2020-10-29 | Trolley for moving beam |
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| Publication Number | Publication Date |
|---|---|
| CN213923781U true CN213923781U (en) | 2021-08-10 |
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| CN202022457763.2U Active CN213923781U (en) | 2020-10-29 | 2020-10-29 | Trolley for moving beam |
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