Position adjusting device of bridge girder erection machine

Abstract

The invention discloses a bridge girder erection machine position adjusting device which comprises a supporting mechanism used for bearing a bridge girder erection machine. The turning mechanism is arranged below the supporting mechanism; the transverse moving mechanism is arranged below the turning-around mechanism and comprises a transverse moving rail and a transverse moving oil cylinder, a cylinder body of the transverse moving oil cylinder is fixed to the turning-around mechanism, and the end of a piston rod is fixed to a first lug plate on the transverse moving rail; the longitudinal moving mechanism comprises a longitudinal moving rail and a longitudinal moving oil cylinder, and the longitudinal moving rail is arranged below the transverse moving rail and is in sliding fit with the transverse moving rail; a cylinder body of the longitudinal moving oil cylinder is fixed on the transverse moving track; the end part of a piston rod is fixed on a second lug plate on the longitudinal moving track; the jacking oil cylinder is arranged below the transverse moving rail, and the end of a piston rod of the jacking oil cylinder is connected with the transverse moving rail. The supporting lead screw mechanism is fixedly arranged on the side portion of the turning-around mechanism. And the hydraulic pump station is provided with a plurality of independent oil ways. By integrating the functions of rotary turning, bidirectional translation and jacking adjustment, autonomous operation of the whole process of in-place, hole passing and turning of the bridge girder erection machine is achieved, and high integration of the functions is achieved.

Description

Technical Field

[0001] This invention belongs to the field of construction equipment technology, and specifically relates to a bridge erecting machine position adjustment device. Background Technology

[0002] In bridge construction, especially in the precast beam erection of highways, railways, and urban viaducts, bridge erecting machines are core equipment. Their operational efficiency and positioning accuracy directly affect the overall progress and quality of the project. After completing the erection of one span of a bridge, the bridge erecting machine needs to move to the next working position or turn around to carry out the next stage of work (such as reverse erection or transfer to an adjacent span). This process is called the bridge erecting machine's "crossing the span" and "turning around".

[0003] Traditional bridge erecting machine relocation and turning mainly rely on large lifting equipment (such as crawler cranes) for assistance. This method has significant drawbacks: First, it requires high site conditions, needing a wide and sturdy working surface; second, it requires the use of additional large equipment, resulting in high rental and operating costs; third, the operation process is cumbersome, involving multiple hoisting, support, and adjustment operations, posing high safety risks and being inefficient, severely impacting the construction schedule; finally, positioning accuracy depends on manual experience and measurement, making it difficult to achieve rapid and precise alignment.

[0004] To overcome the aforementioned problems, some integrated displacement devices have emerged in the industry. For example, some solutions use a combination of transverse and longitudinal trolleys to adjust the planar position of the bridge erecting machine. However, these existing technical solutions still have significant shortcomings:

[0005] Limited functionality: Most devices can only perform translation (horizontal or longitudinal movement) and cannot complete the overall rotation and turning of the bridge erecting machine at the same workstation. Turning still requires the assistance of external equipment or a complex disassembly and reassembly process.

[0006] Limited adjustment capability: When it is necessary to make both height fine-tuning (such as adapting to changes in track elevation and compensating for foundation settlement) and planar position adjustment at the same time, existing devices often lack integrated and synchronous jacking and adjustment functions, or the jacking mechanism interferes with other moving mechanisms, making operation inconvenient.

[0007] Poor automation and coordination: Lateral movement, longitudinal movement, and lifting are usually controlled by independent hydraulic or mechanical systems, lacking a unified electro-hydraulic coordinated control system. Operation requires multiple people to coordinate and work in stages, which is not only inefficient but also prone to structural tilting and jamming under uneven loads, posing safety risks.

[0008] Insufficient stability and support redundancy: During long-distance, heavy-load movement or turning, especially when the main drive mechanism (such as hydraulic cylinder) needs to change direction or maintain pressure, the device lacks reliable mechanical auxiliary support (such as lead screw), and the overall structure is weak in resisting overturning and maintaining its position for a long time.

[0009] Therefore, there is an urgent need to develop a bridge erecting machine position adjustment device that integrates rotation, turning, lateral movement, longitudinal movement, and lifting and lowering functions, and can achieve multi-mechanism collaborative operation through an electronic control system and has mechanical redundancy protection, so as to realize the bridge erecting machine's rapid, accurate, safe and economical work position change and meet the needs of modern and efficient bridge construction. Summary of the Invention

[0010] The purpose of this invention is to overcome the shortcomings of the prior art and realize a bridge erecting machine position adjustment device that integrates rotation, turning, lateral movement, longitudinal movement, lifting and lowering functions, and can realize multi-mechanism collaborative operation through an electronic control system and has mechanical redundancy protection, so as to realize the bridge erecting machine's rapid, accurate, safe and economical work position change, and to provide a bridge erecting machine position adjustment device.

[0011] To achieve the above objectives, the present invention adopts the following technical solution:

[0012] A bridge erecting machine position adjustment device, comprising:

[0013] Support mechanism, used to support the bridge erecting machine;

[0014] A turning mechanism is provided below the support mechanism to support the support mechanism and drive the bridge erecting machine to rotate and turn around. The controlled end of the turning mechanism is connected to the electrical control system.

[0015] A lateral movement mechanism is disposed below the turning mechanism to support the turning mechanism and drive the turning mechanism to move laterally; the lateral movement mechanism includes a lateral movement track and at least one lateral movement cylinder, the cylinder body of the lateral movement cylinder is fixed to the turning mechanism, a first ear plate is provided on the lateral movement track, and the piston rod end of the lateral movement cylinder is fixed to the first ear plate;

[0016] A longitudinal movement mechanism includes a longitudinal movement track and at least one longitudinal movement cylinder. The longitudinal movement track is disposed below the transverse movement track and is slidably engaged with the transverse movement track. The cylinder body of the longitudinal movement cylinder is fixed to the transverse movement track. A second lug is provided on the longitudinal movement track, and the end of the piston rod of the longitudinal movement cylinder is fixed to the second lug.

[0017] A lifting cylinder is located below the transverse track, and the end of its piston rod is connected to the transverse track.

[0018] A supporting lead screw mechanism is fixedly mounted on the side of the turning mechanism;

[0019] The hydraulic pump station is equipped with multiple independent oil circuits that are respectively connected to the transverse oil cylinder, the longitudinal oil cylinder and the lifting oil cylinder, and each oil circuit is equipped with a control valve controlled by the electronic control system.

[0020] The electronic control system is used to control the opening and closing of each of the control valves to coordinate the operation of the transverse mechanism, the longitudinal mechanism and the lifting cylinder, and to control the turning mechanism to rotate and turn.

[0021] This invention integrates the four core adjustment functions required for bridge erection machine construction—rotation and turning, lateral movement, longitudinal movement, and height lifting—into a single base-type device. After the bridge erection machine completes the erection of one span, there is no need to call upon external large-scale hoisting equipment for cumbersome disassembly, hoisting, turning, and reassembly. Through the unified control of the various control valves and turning drive mechanisms on the hydraulic pump station by the electronic control system, electro-hydraulic coordination and sequential control of lateral movement, longitudinal movement, lifting, and rotation are achieved. While the lifting cylinder provides the main vertical support and adjustment, an independent support screw mechanism is added to the side of the turning mechanism to serve as a mechanical rigid support during lateral movement operations. This enables the bridge erection machine to change positions quickly, accurately, safely, and economically.

[0022] Preferably, the support mechanism includes a front crossbeam, a rear crossbeam, four combined columns arranged at four corners, and side longitudinal beams; the two ends of the front crossbeam are respectively connected to two forward combined columns, the two ends of the rear crossbeam are respectively connected to two backward combined columns, and the two ends of the side longitudinal beams are respectively connected to two front and two rear combined columns.

[0023] Preferably, the support mechanism further includes multiple diagonal braces disposed between the combined column and the front and rear crossbeams, and the combined column is provided with a ladder and a working platform.

[0024] Preferably, a weighing base is provided at the end of both the front crossbeam and the rear crossbeam, and a pressure sensor is provided on the weighing base. The data output terminal of the pressure sensor is connected to the electronic control system. A displacement sensor or a level sensor is provided on the front crossbeam or the rear crossbeam, and the data output terminal of the displacement sensor or the level sensor is connected to the electronic control system.

[0025] Preferably, the turning mechanism includes an upper turntable, a lower turntable, a slewing bearing disposed between the upper and lower turntables, and a turning drive mechanism; the lower turntable is provided with anchoring holes, and the turning drive mechanism includes a variable frequency motor and a reducer controlled by the electronic control system, wherein the output shaft of the reducer is connected to the slewing bearing in a transmission manner.

[0026] Preferably, the turning mechanism further includes a side support wheel assembly connected to the lower part of the upper turntable, the side support wheel assembly being used for sliding support on the lower turntable.

[0027] Preferably, the lower part of the transverse mechanism is provided with an inverted support member, and the longitudinal track is slidably suspended below the transverse mechanism through the inverted support member.

[0028] Preferably, the supporting screw mechanism includes a nut, a screw, and a connecting seat, wherein the nut is threadedly connected to the screw.

[0029] Preferably, the lower end of the screw is spherical and is in contact with a spherical base.

[0030] Preferably, the electronic control system includes a control panel, a main power indicator, a control power indicator, an encoder status indicator, a frequency converter status indicator, a skew indicator, a buzzer, and a pressure sensor display screen.

[0031] The beneficial effects of this invention are as follows:

[0032] By integrating rotation, bidirectional translation, and lifting adjustment functions, the bridge erecting machine achieves autonomous operation throughout the entire process of positioning, crossing, and turning, greatly reducing reliance on large external hoisting equipment and realizing a high degree of functional integration.

[0033] By integrating pressure, displacement, and level sensors, and with information processing and coordinated control by the electronic control system, load balancing monitoring, action sequence linkage, and abnormal status alarms are achieved, significantly improving operational safety, accuracy, and efficiency, and enhancing the level of automation and intelligence.

[0034] By using a combination of "lifting cylinder + support screw mechanism" for support, the system provides support for the lateral movement track and the turning mechanism during lateral movement, ensuring that they can complete the lateral movement operation. This effectively prevents the risk of overturning that may be caused by cylinder depressurization and ensures absolute stability under heavy load conditions.

[0035] The combined columns of the support mechanism can be flexibly assembled according to the height of the bridge erecting machine; the lower turntable of the turning mechanism adopts a split bolt connection, which facilitates transportation and on-site adaptation, and enhances the versatility and engineering applicability of the device. Attached Figure Description

[0036] The present invention will now be described in further detail with reference to the accompanying drawings:

[0037] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0038] Figure 2 This is a schematic diagram of the rear view structure of the present invention;

[0039] Figure 3 This is a side view of the structure of the present invention;

[0040] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0041] Figure 5 This is a schematic diagram of the longitudinal displacement cylinder of the present invention;

[0042] Figure 6 This is a schematic diagram of the support screw mechanism of the present invention.

[0043] Explanation of reference numerals in the attached figures:

[0044] 1-Support mechanism; 101-Front crossbeam; 102-Rear crossbeam; 103-Combined column; 104-Side longitudinal beam; 105-Diagonal brace; 106-Ladder; 107-Working platform; 108-Weighing seat; 2-Turning mechanism; 201-Upper turntable; 202-Lower turntable; 203-Slewing bearing; 204-Turning drive mechanism; 205-Side support wheel assembly; 3-Transverse movement mechanism; 301-Transverse movement track; 302-Transverse movement cylinder; 303-First ear plate; 4-Longitudinal movement mechanism; 401-Longitudinal movement track; 402-Longitudinal movement cylinder; 5-Lifting cylinder; 6-Support screw mechanism; 601-Nut; 602-Screw; 603-Connecting seat; 604-Base; 7-Hydraulic pump station; 8-Bridge erecting machine main beam; 9-Concrete beam. Detailed Implementation

[0045] like Figure 1-3 As shown, the present invention provides a bridge erecting machine position adjustment device, including a support mechanism 1, a turning mechanism 2, a transverse movement mechanism 3, a longitudinal movement mechanism 4, a lifting cylinder 5, a support screw mechanism 6, a hydraulic pump station 7, and an electrical control system.

[0046] The support mechanism 1 is used to support the bridge erecting machine; the support mechanism 1 includes a front crossbeam 101, a rear crossbeam 102, four combined columns 103 arranged in a four-corner configuration, and a side longitudinal beam 104; the two ends of the front crossbeam 101 are respectively connected to two forward combined columns 103, the two ends of the rear crossbeam 102 are respectively connected to two backward combined columns 103, and the two ends of the side longitudinal beam 104 are respectively connected to the front and rear combined columns 103.

[0047] The combined column 103 includes multiple columns connected by bolts. Different columns can be assembled according to the height of the bridge erecting machine required on site to meet the needs of bridge erecting machines of different types and heights.

[0048] The support mechanism 1 also includes multiple diagonal braces 105 disposed between the combined column 103 and the front crossbeam 101 and the rear crossbeam 102. The combined column 103 is equipped with a ladder 106 and a working platform 107. The diagonal braces 105 are provided to ensure the stability of the support mechanism 1.

[0049] Weighing seats 108 are installed at the ends of both the front crossbeam 101 and the rear crossbeam 102. Pressure sensors are mounted on the weighing seats 108, and their data outputs are connected to the electronic control system. Displacement and level sensors are also installed on either the front or rear crossbeam 101, with their data outputs also connected to the electronic control system. By measuring the force, displacement, and levelness on the front and rear crossbeams 101 and 102 using the pressure, displacement, and level sensors, the position of the bridge erecting machine or the forward / backward position of the traveling carriage on the bridge erecting machine can be adjusted to ensure force balance at all points. Specifically, the main beam 8 of the bridge erecting machine is erected on the weighing seats 108, and after adjustment for balance, the bridge erecting machine and the support mechanism 1 are fixedly connected using precision-rolled threaded steel bars.

[0050] The turning mechanism 2 is located below the support mechanism 1 and is used to support the support mechanism 1 and drive the bridge erecting machine to rotate and turn around. The controlled end of the turning mechanism 2 is connected to the electrical control system.

[0051] The turning mechanism 2 includes an upper turntable 201, a lower turntable 202, a slewing bearing 203 disposed between the upper turntable 201 and the lower turntable 202, and a turning drive mechanism 204; the lower turntable 202 is provided with anchoring holes for fixed installation. The turning drive mechanism 204 includes a variable frequency motor and a reducer controlled by an electronic control system, and the output shaft of the reducer is connected to the slewing bearing 203 for transmission.

[0052] The turning drive mechanism 204 includes two symmetrically arranged variable frequency motors and reducers connected to them. The output gears of both reducers mesh with the external gear ring of the slewing bearing. One variable frequency motor serves as the main drive motor, operating at a set speed, while the other variable frequency motor serves as the slave drive motor, following the output torque of the main drive motor to achieve synchronous drive and load sharing between the two motors. The main drive motor is connected to a high-precision encoder for real-time feedback of the motor's speed and rotor position information to the electronic control system.

[0053] In this embodiment, for ease of transportation, the lower turntable 202 is divided into two parts and connected by separate bolts, which facilitates transportation and on-site adaptation, and enhances the versatility and engineering applicability of the device.

[0054] The turning mechanism 2 also includes a side support wheel assembly 205 connected to the lower part of the upper turntable 201, which is used for sliding support on the lower turntable 202.

[0055] like Figure 1 , Figure 2 , Figure 4 and Figure 5As shown, the lateral movement mechanism 3 is located below the turning mechanism 2 and is used to support the turning mechanism 2 and drive the turning mechanism 2 to move laterally. The lateral movement mechanism 3 includes a lateral movement track 301 and at least one lateral movement cylinder 302. The cylinder body of the lateral movement cylinder 302 is fixed to the turning mechanism 2, and the end of the piston rod is fixed to the lateral movement track 301. An inverted support is provided at the lower part of the lateral movement mechanism 3, and the longitudinal movement track 401 is slidably suspended below the lateral movement mechanism 3 through the inverted support.

[0056] In this embodiment, two transverse tracks 301 are provided, arranged one in front of the other, and four transverse cylinders 302 are provided, located at both ends of the two transverse tracks 301. A first ear plate 303 is provided on the transverse track 301, and the piston rod end of the transverse cylinder 302 is fixed to the first ear plate 303.

[0057] The longitudinal movement mechanism 4 includes a longitudinal movement track 401 and at least one longitudinal movement cylinder 402. The longitudinal movement track 401 is disposed below the transverse movement track 301 and is slidably engaged with the transverse movement track 301. The cylinder body of the longitudinal movement cylinder 402 is fixed to the transverse movement track 301, and the piston rod end is fixed to the longitudinal movement track 401.

[0058] In this embodiment, two longitudinal tracks 401 are provided, arranged side to side, and four longitudinal cylinders 402 are provided, located at both ends of the two longitudinal tracks 401. A second lug is provided on the longitudinal track 401, and the piston rod end of the longitudinal cylinder 402 is fixed to the second lug.

[0059] The lifting cylinder 5 is located below the transverse track 301, and the end of its piston rod is connected to the transverse track 301.

[0060] A supporting screw mechanism 6 is fixedly mounted on the side of the turning mechanism 2. The supporting screw mechanism 6 includes a nut 601, a screw 602, and a connecting seat 603. The nut 601 is threadedly connected to the screw 602. The lower end of the screw 602 is spherical and contacts a spherical base 604. The supporting screw mechanism 6 is used to support the concrete beam 9 during lateral movement and provides stable support for the turning mechanism 2, ensuring the lateral movement of the lateral track 301.

[0061] The combination of "lifting cylinder + support screw mechanism" provides support for the lateral track 301 and the turning mechanism 2 during lateral movement, ensuring that they can complete the lateral movement operation. This effectively prevents the risk of overturning that may be caused by cylinder depressurization and ensures absolute stability under heavy load conditions.

[0062] The hydraulic pump station 7 is equipped with multiple independent oil circuits that are respectively connected to the transverse oil cylinder 302, the longitudinal oil cylinder 402 and the lifting oil cylinder 5. Each oil circuit is equipped with a control valve controlled by the electronic control system.

[0063] The electronic control system is used to control the opening and closing of each control valve to coordinate the operation of the transverse movement mechanism 3, the longitudinal movement mechanism 4 and the lifting cylinder 5, and to control the turning mechanism 2 to rotate and turn.

[0064] The electrical control system includes a control panel, PLC controller, main power indicator, control power indicator, encoder status indicator, inverter status indicator, skew indicator, buzzer, and pressure sensor display screen.

[0065] The PCL controller is connected to the encoder command input terminal, the frequency converter command input terminal, and the controlled terminal of the variable frequency motor in the turning drive mechanism 204 on the control panel.

[0066] In this embodiment, the main power indicator light is used to indicate the opening and closing of the electronic control system and is connected in the main power supply circuit of the electronic control system; the control power indicator light is used to indicate the opening and closing of the control panel and is connected in the power supply circuit of the control panel; the encoder status light and the inverter status indicator light are used to indicate the working status of the variable frequency motor and are connected in the circuit between the control panel and the variable frequency motor; the pressure sensor display screen is used to display the measurement data of the pressure sensor; the skew indicator light is used to light up after the measurement data of the horizontal sensor exceeds the set value; and the buzzer is used to sound an alarm after the measurement data of the pressure sensor, the displacement sensor, or the horizontal sensor exceeds the set value.

[0067] The working principle and operation procedure of this device are as follows:

[0068] First, place the entire device on the erected concrete beam 9. In the initial state, the longitudinal track 401 supports the device, and the lifting cylinder 5 is detached.

[0069] Longitudinal movement operation process:

[0070] S1. Open the control valve on the oil line connected to the longitudinal cylinder 402. The piston rod of the longitudinal cylinder 402 extends, and the longitudinal track 401 and the transverse track 301 generate relative displacement. The transverse track 301 starts to move on the longitudinal track 401, thereby driving the turning mechanism 2 on the transverse track 301 to move longitudinally.

[0071] S2. When the turning mechanism 2 moves longitudinally to the set position, the control valve on the oil line connected to the lifting cylinder 5 is opened, and the piston rod of the lifting cylinder 5 extends to support the ground, so that the transverse track 301, the turning mechanism 2 on the transverse track 301 and the longitudinal track 401 are lifted synchronously, so that the longitudinal track 401 is disengaged, and the transverse track 301 and the turning mechanism 2 on the transverse track 301 are stably supported on the concrete beam 9 by the lifting cylinder 5.

[0072] S3. At this time, the piston rod of the longitudinal cylinder 402 retracts, causing the longitudinal track 401 to move longitudinally;

[0073] S4. The piston rod of the lifting cylinder 5 retracts, causing the transverse track 301 to fall onto the longitudinal track 401. Then the lifting cylinder 5 disengages, completing the longitudinal movement.

[0074] Lateral movement operation process:

[0075] S1. Open the control valve on the oil line connected to the lifting cylinder 5, and the piston rod of the lifting cylinder 5 extends, causing the longitudinal track 401 to detach from the concrete beam 9.

[0076] S2. Rotate the screw 602 in the support screw mechanism 6 so that it is in spherical contact with the base 604 to support on the concrete beam 9 and provide stable support for the turning mechanism 2;

[0077] S3. The piston rod of the lifting cylinder 5 retracts, and then the lifting cylinder 5 disengages.

[0078] S4. Open the control valve on the oil line connected to the transverse cylinder 302. The piston rod of the transverse cylinder 302 extends, and relative displacement is generated between the turning mechanism 2 and the transverse track 301 connected to both ends of the transverse cylinder 302. The transverse track 301 begins to move transversely together with the lifting cylinder 5 and the longitudinal track 401, so that it is symmetrical with the concrete beam 9 in the transverse direction.

[0079] S5. The piston rod of the lifting cylinder 5 extends and touches the ground for support, providing stable support for the transverse track 301. The support screw is rotated to disengage it.

[0080] S6. The piston rod of the transverse cylinder 302 retracts, driving the turning mechanism 2 to move laterally to the transverse center of the concrete beam 9; thus completing the transverse movement.

[0081] U-turn operation procedure:

[0082] Test rotation: Start the turning mechanism 2 to rotate the support mechanism 1 by a small angle. Check the pressure, displacement angle, and levelness through the control panel. When there are no significant changes in any value, it indicates that the turning mechanism 2 and the support mechanism 1 are in a balanced and stable rotation state. Otherwise, check all connecting parts and readjust them.

[0083] Rotation and turning: When the pressure and displacement values ​​are stable, operate the driving turning mechanism 2 to rotate the support mechanism 1 180 degrees, with the speed controlled at about 0.1 r / min, to ensure that the entire rotation process is carried out at a uniform speed, and the entire rotation process is controlled within half an hour.

[0084] Bridge erecting machine positioning: Measure the placement position of the rotated bridge erecting machine in advance and mark it with paint. After the bridge erecting machine is rotated into place, use a beam lifting machine to hoist the bridge erecting machine to the designated position. Once the bridge erecting machine is in place, the turning operation is complete.

[0085] Through the above process, this device can safely, efficiently, and accurately complete the all-round position adjustment and steering of the bridge erecting machine.

[0086] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope defined in the claims.

Claims

1. A bridge position adjustment device for a bridge machine, characterized by, The utility model provides a bridge erecting machine, which comprises a support mechanism, a turning mechanism arranged below the support mechanism, a horizontal moving mechanism arranged below the turning mechanism, a vertical moving mechanism, a jacking oil cylinder, a hydraulic pump station and an electric control system. The support mechanism comprises a front cross beam, a rear cross beam, four combined columns arranged in a quadrilateral and side longitudinal beams. The two ends of the front cross beam are connected to two front combined columns respectively, the two ends of the rear cross beam are connected to two rear combined columns respectively, and the two ends of the side longitudinal beams are connected to the front and rear combined columns respectively. The support mechanism further comprises a plurality of inclined braces arranged between the combined columns and the front cross beam and the rear cross beam. The combined columns are provided with a ladder and a working platform. The ends of the front cross beam and the rear cross beam are provided with a weighing seat, and a pressure sensor is arranged on the weighing seat. The data output end of the pressure sensor is connected to the electric control system. A displacement sensor or a level sensor is arranged on the front cross beam or the rear cross beam, and the data output end of the displacement sensor or the level sensor is connected to the electric control system. The turning mechanism comprises an upper turntable, a lower turntable, a slewing bearing arranged between the upper turntable and the lower turntable and a turning driving mechanism.

2. The apparatus of claim 1, wherein, The lower turntable is provided with an anchoring hole, the turning driving mechanism comprises a variable frequency motor and a speed reducer controlled by the electric control system, and the output shaft of the speed reducer is in driving connection with the slewing bearing.

3. The apparatus of claim 2, wherein, The turning mechanism further comprises a side support wheel set connected to the lower part of the upper turntable, which is used for sliding support on the lower turntable.

4. The apparatus of claim 2, wherein, The lower part of the horizontal moving mechanism is provided with an inverted support, and the vertical moving track is slidably hung below the horizontal moving mechanism through the inverted support.

5. The apparatus of claim 1, wherein, The support screw mechanism comprises a nut, a screw rod and a connecting seat, and the nut is in threaded connection with the screw rod.

6. The apparatus of claim 5, wherein, The electric control system is used for controlling the opening and closing of each control valve to cooperatively control the actions of the horizontal moving mechanism, the vertical moving mechanism and the jacking oil cylinder, and control the rotation of the turning mechanism.

7. The apparatus of claim 1, wherein, ​ 8. The apparatus of claim 1, wherein, ​ 9. The apparatus of claim 8, wherein, The lower end of the screw rod is spherical and is arranged in spherical contact with a base.

10. The apparatus of claim 1, wherein, The electric control system comprises a control panel, a main power indicator light, a control power indicator light, an encoder state indicator light, a frequency converter state indicator light, a deflection indicator light, a buzzer and a pressure sensor display screen.

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