Turn-around device

Abstract

The utility model discloses a turning-around device which comprises a lower rotating disc, an upper rotating disc, a slewing bearing, a driving device, a supporting frame, a plurality of weighing seats, a plurality of anchoring assemblies and an electrical control system, the lower rotating disc is provided with at least two groups of anchoring hole groups, each group of anchoring hole group is provided with at least three anchoring holes, and the upper rotating disc is provided with at least two groups of anchoring holes. One end of the first anchor rod assembly is fixedly installed in the anchoring hole, and the other end of the first anchor rod assembly can be fixedly connected to the box girder so that the lower rotating disc can be fixedly connected to the box girder. The slewing bearing comprises an outer ring and an inner ring which rotate relatively, the outer ring is detachably connected to the lower rotating disc, and the inner ring is located in the outer ring and detachably connected with the upper rotating disc; the driving device is arranged on the upper rotating disc, and the output end of the driving device is connected to the outer ring in a driving mode so that the outer ring and the inner ring can rotate relatively. Therefore, the U-turn construction operation of the transporting and erecting equipment can be quickly realized, the U-turn efficiency is high, and the construction cost is low.

Description

Technical Field

[0001] This utility model relates to the field of bridge construction equipment technology, and in particular to a turning device. Background Technology

[0002] During the box girder transportation and erection process, the continuous beams, high-voltage lines, and land acquisition and demolition work necessitate multiple relocations and turns for the bridge erection machine and girder transport vehicle to be carried out on suitable working surfaces. Previously, the turning around of the transportation equipment (bridge erection machine, girder transport vehicle, etc.) was done within the beam yard. This involved the girder transport vehicle carrying the bridge erection machine back to the beam yard, followed by a 450t gantry crane lifting both the transport vehicle and the bridge erection machine to the bridge site. The transport vehicle then rotated 180 degrees within the beam yard. This process required clearing obstacles and hardening the site in the turning area, and subsequent land reclamation after project completion. This resulted in low efficiency and high construction costs for the transportation equipment. Utility Model Content

[0003] This utility model aims to at least partially solve one of the technical problems in the related art.

[0004] Therefore, one objective of this utility model is to provide a turning device that can quickly realize the turning operation of transport equipment, with high turning efficiency and low construction cost.

[0005] To achieve the above objectives, this utility model proposes a turning device, including a lower turntable, an upper turntable, a slewing bearing, a drive device, a support frame, multiple weighing seats, multiple anchoring components, and an electrical control system. The lower turntable has at least two sets of anchoring hole groups, each set having at least three anchoring holes. One end of a first anchor bolt assembly is fixedly installed in one of the anchoring holes, and the other end is fixedly connected to a box girder to secure the lower turntable to the box girder. The slewing bearing includes an outer ring and an inner ring that rotate relative to each other. The outer ring is detachably connected to the lower turntable, and the inner ring is located within the outer ring and detachably connected to the upper turntable. The drive device is mounted on the upper turntable, and its output end is connected to a drive mechanism. The outer ring allows the outer ring and the inner ring to rotate relative to each other; the support frame is detachably connected to the upper turntable; the weighing seat is movably mounted on the support frame, and a pressure sensor is provided on the weighing seat; multiple anchoring components are arranged one-to-one with multiple weighing seats, and the anchoring components are detachably connected to the support frame. Each anchoring component includes a limiting beam and two second anchor rod components. One end of the second anchor rod component is fixed to the limiting beam, and the other end of the second anchor rod component is fixed to the support frame, so as to fix the preset fixing part of the transport equipment in the inverted U-shaped area formed by the two second anchor rod components and the limiting beam; the electrical control system is connected to the drive device and the pressure sensor.

[0006] This utility model's turning device first involves hoisting the transport equipment onto a weighing base using a gantry crane, and then securing the equipment to its pre-set fixed parts using anchoring components. Next, the positions of the two lifting beams of the transport equipment are adjusted so that its center of gravity is near the center line of the turning device's support base, until the difference in values ​​displayed by multiple pressure sensors is less than 10t. The drive unit is then activated, rotating the transport equipment 5 degrees. The pressure and levelness values ​​are monitored through the electrical control system. If no significant changes occur in these values, the turning device and the transport equipment are in a balanced state; otherwise, all connecting parts should be checked and readjusted. Finally, the drive unit can be controlled to rotate the upper turntable, enabling rapid turning operations of the transport equipment with high efficiency and low construction costs.

[0007] In addition, the turning device proposed in the application may also have the following additional technical features:

[0008] Specifically, the lower turntable includes a first connecting block, a second connecting block, and a plurality of first anchor bolt assemblies. The first connecting block and the second connecting block are connected by bolts. The first connecting block has at least three anchor holes, and the second connecting block has at least three anchor holes. The three anchor holes on the first connecting block and the three anchor holes on the second connecting block are symmetrically arranged with respect to the transverse central axis of the lower turntable. The first anchor bolt assemblies fix the first connecting block or the second connecting block to the box girder through the anchor holes.

[0009] Specifically, the first anchor bolt assembly installed on the first connecting block and the first anchor bolt assembly installed on the second connecting block are arranged in a staggered manner.

[0010] Specifically, the first anchor bolt assembly includes an anchor bolt, two anchor heads, and a washer. The two anchor heads are threaded to the head and tail ends of the anchor bolt, respectively. The washer is fitted onto the anchor bolt. The anchor head at one end presses the washer against the first connecting block or the second connecting block, and the anchor head at the other end is fixedly connected to the box girder.

[0011] Specifically, the support frame includes: two lower longitudinal beams, which are arranged side-by-side along the length of the upper turntable and are detachably connected to the upper turntable; a first crossbeam and a second crossbeam, which are detachably connected between the two lower longitudinal beams; two first combined columns and two second combined columns, with one first combined column and one second combined column detachably connected to each of the lower longitudinal beams; a front crossbeam, which is detachably connected to each of the two first combined columns; a third crossbeam and a second crossbeam. The four crossbeams include a third crossbeam detachably connected to the front crossbeam with a hinge point between them, a fourth crossbeam detachably connected to two second combined columns, and a weighing seat movably mounted on the third and fourth crossbeams; a first diagonal brace and a second diagonal brace, one end of the first diagonal brace hinged to the fourth crossbeam and the other end hinged to the first combined column, one end of the second diagonal brace hinged to the second combined column and the other end hinged to the front crossbeam.

[0012] Specifically, the support frame further includes: two third diagonal braces, which are distributed in a figure-eight shape. One end of each third diagonal brace is hinged to the fourth crossbeam, and the other end of each third diagonal brace is hinged to one of the multiple hinge seats provided on the second combined column or the second crossbeam.

[0013] Specifically, guardrail platforms are respectively provided on the opposite sides of the third and fourth crossbeams.

[0014] Specifically, the support frame is detachably connected to a combination escalator, which includes multiple escalators, and the escalators are fixedly connected to each other by U-bolts.

[0015] Specifically, it also includes a side support wheel, which is fixed to the surface of the upper turntable adjacent to the lower turntable. When the upper turntable rotates, the side support wheel follows the upper turntable in a circular motion.

[0016] Specifically, it also includes two pads, one of which is disposed on the first connecting block and the other of which is disposed on the second connecting block. After the first connecting block and the second connecting block are spliced ​​and fixed, the two pads form a circular track, and the side support wheel rolls on the pads. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a partial structural schematic diagram of a turning device according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the installation of a turning device and a box girder according to an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of the lower turntable according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the structure of a first anchor bolt assembly according to an embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of a U-bolt according to an embodiment of the present invention;

[0024] Figure 6 This is a schematic diagram of the connection between the upper turntable and the side support wheel according to an embodiment of the present invention.

[0025] As shown in the figure:

[0026] 1. Lower turntable; 10. First connecting block; 11. Second connecting block; 12. First anchor bolt assembly; 13. Pad; 100. Anchor hole; 120. Anchor bolt; 121. Anchor head; 122. Washer;

[0027] 2. Turn the wheel up;

[0028] 3. Slewing bearing;

[0029] 4. Support frame; 40. Lower longitudinal beam; 41. First crossbeam; 42. Second crossbeam; 43. First combined column; 44. Second combined column; 45. Front crossbeam; 46. Third crossbeam; 47. Fourth crossbeam; 48. First diagonal brace; 49. Second diagonal brace; 410. Third diagonal brace; 420. Hinge seat;

[0030] 5. Weighing stand;

[0031] 6. Anchoring assembly; 60. Second anchor bolt assembly; 61. Limiting beam;

[0032] 7. Electrical control system;

[0033] 8. Guardrail platform;

[0034] 9. Combination escalator; 90. U-bolt;

[0035] 1000, Side support wheel. Detailed Implementation

[0036] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0037] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0038] The turning device of this utility model embodiment will now be described with reference to the accompanying drawings.

[0039] The turning device provided in this embodiment of the utility model can be applied to the field of bridge construction. It can realize the construction operation of turning the bridge erection equipment in place. The turning efficiency is high and the construction cost is low. The bridge erection equipment can be a bridge erecting machine or a beam transport vehicle. The following uses a bridge erecting machine as an example.

[0040] like Figure 1 , Figure 2 As shown, the turning device of this utility model embodiment may include a lower turntable 1, an upper turntable 2, a slewing bearing 3, a drive device (not shown in the figure), a support frame 4, multiple weighing seats 5, multiple anchoring components 6, and an electrical control system 7.

[0041] The lower turntable 1 is provided with at least two sets of anchor hole groups, and each set of anchor hole groups is provided with at least three anchor holes 100, wherein, as can be referred to Figure 3 Each set of anchor holes has four anchor holes 100. One end of the first anchor rod assembly 12 is fixedly installed in the anchor hole 100, and the other end can be fixedly connected to the box girder to fix the lower turntable 1 to the box girder. The specifications of the first anchor rod assembly 12 can be selected according to the specifications of the anchor hole 100 to be suitable for the anchoring connection of different models of box girders.

[0042] Among them, such as Figure 3 As shown, the lower turntable 1 includes a first connecting block 10, a second connecting block 11, and a plurality of first anchor bolt assemblies 12. The first connecting block 10 and the second connecting block 11 are connected by bolts, which facilitates the storage and transportation of the lower turntable 1.

[0043] The first connecting block 10 has at least three anchor holes 100, and the second connecting block 11 has at least three anchor holes 100. The three anchor holes 100 on the first connecting block 10 and the three anchor holes 100 on the second connecting block 11 are arranged symmetrically with reference to the transverse central axis of the turntable 1. The first anchor rod assembly 12 fixes the first connecting block 10 or the second connecting block 11 to the box girder through the anchor holes 100. That is, the first anchor rod assembly 12 can fix the first connecting block 10 or the second connecting block 11 to the box girder.

[0044] Among them, reference Figure 4 As shown, the first anchor bolt assembly 12 includes an anchor bolt 120, two anchor heads 121, and a washer 122. The two anchor heads 121 are threaded to the head and tail ends of the anchor bolt 120, respectively. The washer 122 is fitted onto the anchor bolt 120. One end of the anchor head 121 presses the washer 122 against the first connecting block 10 or the second connecting block 11, and the other end of the anchor head 121 is fixedly connected to the box girder.

[0045] Specifically, in the process of using the first anchor bolt assembly 12 to stabilize the first connecting block 10 and the second connecting block 11, the anchor bolt 120 first needs to be passed through the corresponding anchor hole 100, ensuring that it also passes through the anchor hole 100 and the corresponding fixing hole on the box girder. Then, the washer 122 is fitted onto the anchor bolt 120 and its position is adjusted so that the washer 122 is tightly against the surface of the lower turntable 1. Next, the two anchor heads 121 are tightened sequentially, ensuring that one anchor head 121 is tightly pressed against the washer 122, while the other is firmly fixed to the box girder, thus achieving the fixation of the lower turntable 1. The operation is simple and convenient. The anchor bolt 120 can be made of high-strength threaded steel.

[0046] It should be noted that during the anchoring of the lower turntable 1 to the box girder (or roadbed), the anchoring points and the area in contact with the box girder will first be laid and leveled using self-leveling mortar. This grouting needs to be done 2 hours in advance, and the lower turntable 1 can only be installed after the grout reaches a strength of 20 MPa. Furthermore, the assembly personnel need to perform precise adjustments to the horizontal level of the contact surface of the lower turntable 1. This adjustment process can be precisely achieved using a level sensor, ensuring that the lower turntable 1 reaches the required horizontal state during installation, thereby guaranteeing the stability of the entire turning device during installation.

[0047] Furthermore, such as Figure 3As shown, the first anchor bolt assembly 12 installed on the first connecting block 10 and the first anchor bolt assembly 12 installed on the second connecting block 11 are staggered, which makes the spatial distribution between each anchoring point more uniform and better disperses the load. The staggered arrangement makes the mechanical action points of the first anchor bolt assembly 12 staggered in the width direction, avoiding the problem of excessive local stress caused by concentration in a single position, thereby effectively improving the stability of the overall structure.

[0048] For example, refer to Figure 3 There are four first anchor bolt assemblies 12. The first anchor bolt assembly 12 installed on the first connecting block 10 is misaligned with the first anchor bolt assembly 12 installed on the second connecting block 11. The projection position of the first anchor bolt assembly 12 installed on the first connecting block 10 in the width direction can be between the two first anchor bolt assemblies 12 installed on the second connecting block 11.

[0049] In some other embodiments, the projection position of the first anchor bolt assembly 12 on the first connecting block 10 in the width direction may not be between the two first anchor bolt assemblies 12 on the second connecting block 11, or one of the first anchor bolt assemblies 12 on the first connecting block 10 may be between the two first anchor bolt assemblies 12 on the second connecting block 11, and the other first anchor bolt assembly 12 on the first connecting block 10 may not be between the two first anchor bolt assemblies 12 on the second connecting block 11.

[0050] The slewing bearing 3 includes an outer ring and an inner ring that rotate relative to each other. The outer ring is detachably connected to the lower turntable 1, and the inner ring is located inside the outer ring and is detachably connected to the upper turntable 2. That is, the outer ring of the slewing bearing 3 can be connected to the lower turntable 1 by flange and bolts, or it can be directly connected to the lower turntable 1 by bolts. Similarly, the inner ring and the upper turntable 2 can also be connected in the same way. The inner ring and the outer ring of the slewing bearing 3 are rotatably connected by rolling elements, and the slewing bearing 3 is a slewing bearing 3 with teeth on the outer ring.

[0051] The drive unit is mounted on the upper turntable 2, and the output end of the drive unit is connected to the outer ring so that the outer ring and the inner ring rotate relative to each other.

[0052] It should be noted that the drive device can be a motor and gear mechanism or a motor and worm gear mechanism, as long as it can drive the outer ring teeth to rotate through the motor and transmission components. The choice can be made according to the actual situation.

[0053] Specifically, the outer ring teeth of the slewing bearing 3 remain stationary, and the upper turntable 2 rotates by means of the output shaft of the drive device rotating through the gears and the meshing force between the gears and the teeth.

[0054] Furthermore, in order to ensure the reliability of the drive turntable 2 when it rotates, the drive device can be set into two sets arranged on both sides of the slewing bearing 3 respectively. The drive device uses the programmable controller in the electrical control system 7 as the control core, and adopts remote touch screen control and local manual control, which is convenient, flexible and reliable.

[0055] The support frame 4 is detachably connected to the upper turntable 2, and the weighing seat 5 is movably mounted on the support frame 4. By changing the position of the weighing seat 5 on the support frame 4, rotational support for different models of bridge erecting machines can be achieved. The weighing seat 5 is equipped with a pressure sensor (not shown in the drawing).

[0056] The weighing base 5 can be multiple, meaning multiple pressure sensors are installed. This allows for precise detection of the bridge erecting machine's center of gravity shift, ensuring the machine remains level both longitudinally and laterally. Operators can constantly observe the suspension status of the front and rear booms of the bridge erecting machine. If tilting occurs, adjustments can be made promptly via the gantry crane. Simultaneously, each pressure sensor provides real-time feedback on the load at its corresponding location, offering detailed data on the bridge erecting machine's balance. This refined detection method enables more accurate adjustment of the bridge erecting machine's center of gravity.

[0057] For example, refer to Figure 1 Weighing base 5 has four units. The bridge erecting machine is placed on weighing base 5. The positions of the two gantry cranes of the bridge erecting machine are adjusted so that the center of gravity of the bridge erecting machine is near the center line of the support base, until the difference in values ​​displayed by the four pressure sensors is less than 10t (refer to...). Figure 1 The difference between the sum of the weighing values ​​of the two horizontally arranged pressure sensors in the front row and the sum of the weighing values ​​of the two horizontally arranged pressure sensors in the rear row is used to ensure that the center of gravity of the bridge erecting machine has been correctly adjusted to the designated position, thus ensuring that the bridge erecting machine remains stable and balanced during rotation.

[0058] Multiple anchoring components 6 are arranged one-to-one with multiple weighing seats 5, and the anchoring components 6 are detachably connected to the support frame 4. Each anchoring component 6 includes a limiting beam 61 and two second anchor rod components 60. One end of each second anchor rod component 60 is fixed to the limiting beam 61, and the other end is fixed to the support frame 4, thus fixing the pre-fixed part of the bridge erecting equipment within the inverted U-shaped area formed by the two second anchor rod components 60 and the limiting beam 61. For example, the bridge erecting equipment can be a bridge erecting machine, and the pre-fixed part is the machine arm of the bridge erecting machine. This prevents the bridge erecting machine from shifting or tilting during operation due to imbalance or external forces, ensuring that the bridge erecting machine remains in a stable working state.

[0059] It should be noted that the second anchor bolt assembly 60 has the same structure as the first anchor bolt assembly 12, and also includes an anchor bolt 120, two anchor heads 121, and a washer 122.

[0060] It should be noted that, in order to better determine whether the anchor point position is compatible with the bridge erecting machine of different tonnages, the center distance between two adjacent weighing seats 5 arranged along the length of the support frame 4 can be set as 'a', and the center distance between two second anchor bolt assemblies 60 arranged along the length of the support frame 4 and adjacent to the same weighing seat 5 can be set as 'c'. Similarly, the center distance 'a' between two adjacent weighing seats 5 is also the center distance between the two arms of the bridge erecting machine. The reasonable spatial distribution between the arms of the bridge erecting machine of different tonnages and the weighing seats 5 and anchor bolt assemblies 6 can be ensured based on the range of the a / c ratio. This can be used to determine whether the anchor point position of the second anchor bolt assembly 60 is appropriate relative to the arm or weighing seat. The range of the a / c ratio can be determined by conducting mechanical tests in the laboratory or on-site to simulate the stress conditions of bridge erecting machines of different tonnages during operation, evaluate the stability and safety of the structure under different a / c ratios, or use computer simulation software to perform finite element analysis on the bridge erecting machine structure under different a / c ratios to evaluate its stress distribution, deformation, etc., thereby determining a reasonable range of ratios.

[0061] For example, if c is 1450mm, and the a / c ratio ranges from 2.8 to 4.9, the anchor point position when c is 1450mm can be deduced. This method is applicable to bridge erecting machines where the center distance between the two booms is between 4000mm and 7105mm, thus determining whether the position of the second anchor bolt assembly 60 needs to be readjusted.

[0062] For example, if c is 2600mm, and the a / c ratio is between 0.46 and 0.77, the anchor point position for c is 2600mm, which is applicable to bridge erecting machines where the center distance between the two booms is between 1196mm and 2002mm.

[0063] Specifically, for example, if the distance between the two booms of the bridge erecting machine is 7000mm, or 4200mm, or 6000mm, it can be determined that when the center distance c between the second anchor bolt assemblies 60 is 1450mm, the center distance between the booms of the bridge erecting machines of different tonnages is within the above range. Therefore, there is no need to readjust the position of the second anchor bolt assembly 60, ensuring the stability of the anchoring assembly 6 when fixing the boom, and avoiding the risk of boom loosening and instability caused by improper anchoring point position of the second anchor bolt assembly 60.

[0064] The electrical control system 7 is connected to the drive unit and pressure sensor.

[0065] It should be noted that the electrical control system 7 can be connected to the drive device and pressure sensor via wired or wireless (WiFi) connection. The electrical control system 7 includes an operating console, a touch screen, a programmable logic controller (PLC), and a remote control box. The operating console is equipped with various indicator lights, such as the main power indicator, control power indicator, and encoder status indicator. The remote control box is used for remote operation to increase control flexibility. The touch screen can also display the status of each component and real-time operating parameters. In addition, the electrical control system 7 is equipped with three control modes: local manual mode, remote manual mode, and remote automatic mode, to adapt to various rotational working conditions.

[0066] Specifically, based on the center of gravity position provided by the bridge erecting machine manufacturer, ensure that the rotation center of this turning device coincides with the center of gravity of the bridge erecting machine, with a horizontal and longitudinal error not exceeding ±10cm, and mark it with paint beforehand. Then, hoist the bridge erecting machine onto the weighing seat using the lifting beam gantry, and fix the boom of the bridge erecting machine using the anchoring component 6. Then, adjust the position of the two lifting beams of the bridge erecting machine so that the center of gravity of the bridge erecting machine is near the center line of the turning device support seat, until the difference in values ​​displayed by multiple pressure sensors is less than 10t. Start the drive device to rotate the bridge erecting machine by 5 degrees, and check the pressure, levelness, and other values ​​through the electrical control system 7. When there are no significant changes in the values, it can be proved that the turning device and the bridge erecting machine are in a balanced state; otherwise, check all connection parts and readjust them.

[0067] Finally, the controllable drive device works with the slewing bearing 3 to drive the upper turntable 2, thereby enabling the rapid turning operation of the transport equipment, which has high turning efficiency and low construction cost.

[0068] If, during rotation, the machine is in its most unfavorable position (around 90 degrees) or encounters extremely uncontrollable factors (such as wind), and the difference in pressure between the two pressure sensors at the front and rear of the bridge erecting machine exceeds 10t, rotation should be stopped. A hydraulic jack (e.g., a 400T jack) should be installed on support frame 4, and the balance of the bridge erecting machine should be readjusted by raising (and retracting) the jack. Rotation can only resume after the entire bridge erecting machine is in a stable state. During rotation, the real-time wind speed should be measured with an anemometer beforehand. Operation can only proceed when the wind speed is below level 4 to ensure the entire rotation process is unaffected by wind.

[0069] Furthermore, such as Figure 1 As shown, the support frame 4 includes two lower longitudinal beams 40, a first crossbeam 41, a second crossbeam 42, two first combined columns 43, two second combined columns 44, a front crossbeam 45, a third crossbeam 46, a fourth crossbeam 47, a first diagonal brace 48, and a second diagonal brace 49.

[0070] Among them, the two lower longitudinal beams 40 are arranged side by side along the length of the upper turntable 2, and the lower longitudinal beams 40 are detachably connected to the upper turntable 2.

[0071] It should be noted that the upper turntable 2 is I-shaped, which not only facilitates the installation of the two lower longitudinal beams 40 and increases the contact area between them, but also saves materials and reduces manufacturing costs.

[0072] The first crossbeam 41 and the second crossbeam 42 are detachably connected between the two lower longitudinal beams 40. It can be understood that by setting the first crossbeam 41 and the second crossbeam 42, the two lower longitudinal beams 40 are reinforced.

[0073] Each lower longitudinal beam 40 is detachably connected to a first combined column 43 and a second combined column 44.

[0074] It should be noted that the first combination column 43 and the second combination column 44 are composed of multiple columns of different lengths that are spliced ​​and fixed together by bolts, thereby achieving different height adjustments to meet the needs of bridge erecting machines of different types and heights and to improve the applicability.

[0075] The front crossbeam 45 is detachably connected to the two first combined columns 43, and the third crossbeam 46 is detachably connected to the front crossbeam 45. A hinge point is provided between the third crossbeam 46 and the front crossbeam 45. This hinge point, combined with two other force-bearing points on the third crossbeam 46 that contact the front crossbeam 45, forms a three-point stable force-bearing structure. When the transport equipment is placed on the support frame 4, its weight generates a downward vertical force. In this three-point stable force-bearing structure, these forces are distributed to three different points, thereby reducing local stress at each point. Furthermore, because these three points are not collinear, they form a stable triangular structure that can resist external forces from multiple directions, maintaining the overall stability of the support frame and resulting in more uniform force distribution when supporting the transport equipment.

[0076] The fourth crossbeam 47 is detachably connected to the two second combined columns 44. The weighing seat 5 is movably mounted on the third crossbeam 46 and the fourth crossbeam 47. Specifically, the position of the weighing seat 5 after it has been moved can be adjusted and fixed by changing the position of the bolts on the third crossbeam 46 or the fourth crossbeam 47.

[0077] One end of the first diagonal brace 48 is hinged to the fourth crossbeam 47, and the other end of the first diagonal brace 48 is hinged to the first combined column 43. One end of the second diagonal brace 49 is hinged to the second combined column 44, and the other end of the second diagonal brace 49 is hinged to the front crossbeam 45. By setting the first diagonal brace 48 and the second diagonal brace 49, the first combined column 43 and the second combined column 44 are further fixed, thereby improving the stability of the first combined column 43 and the second combined column 44 when supported.

[0078] Furthermore, such as Figure 2 As shown, the support frame 4 also includes two third diagonal braces 410, which are arranged in a V-shape. One end of each third diagonal brace 410 is hinged to the fourth crossbeam 47, and the other end is hinged to one of the multiple hinge seats 420 provided on the second combined column 44 or the second crossbeam 42. The V-shaped arrangement of the third diagonal braces 410 can disperse concentrated stress over a larger area, thereby reducing localized stress on individual components. This helps extend the service life of the support frame 4 and reduce structural damage caused by stress concentration. Furthermore, by rationally arranging the third diagonal braces 410, the support frame 4 can be subjected to more even stress, avoiding structural deformation or damage caused by uneven stress. One end of each third diagonal brace 410 is hinged to the fourth crossbeam 47, and the other end can be hinged to one of the multiple hinge seats 420 provided on the second combined column 44 or the second crossbeam 42. This design allows the third diagonal braces 410 to be adjusted according to specific construction conditions and requirements, improving their adaptability and flexibility.

[0079] In one embodiment of this utility model, such as Figure 1 As shown, guardrail platforms 8 are respectively installed on the opposite sides of the third crossbeam 46 and the fourth crossbeam 47. The guardrail platforms 8 provide construction workers with a relatively spacious and safe working area. On the guardrail platforms 8, construction workers can perform various operations more stably, such as installation, debugging, and maintenance, thereby reducing the safety risks caused by unstable operation.

[0080] In one embodiment of this utility model, such as Figure 1 As shown, a combination escalator 9 is detachably connected to the support frame 4. The combination escalator 9 includes multiple escalators, which are fixedly connected to each other by U-bolts 90.

[0081] The combination escalator 9 features a detachable connection, facilitating installation and disassembly as needed. This not only saves storage space but also allows for flexible adjustment of the escalator's position and number based on changes in the construction site. For example, one end of the combination escalator 9 can extend to the guardrail platform 8, while the other end extends to the ground, making it easier for construction workers to reach the guardrail platform 8 from the ground without climbing other structures or using other tools, thus improving work efficiency.

[0082] For reference Figure 5 The U-bolt 90 may include a U-shaped clamp, a limiting plate, and a bolt. This provides a simple and reliable fixing connection, is easy to install and disassemble, and ensures a stable connection between escalators. By fixing two adjacent escalators together with the U-bolt 90, a robust combined escalator structure is formed. This structure can withstand significant loads, ensuring the safety of workers when using the escalators.

[0083] In one embodiment of this utility model, such as Figure 6 As shown, the turning device of this utility model also includes a side support wheel 1000, which is fixed on the side of the upper turntable 2 near the lower turntable 1. When the upper turntable 2 rotates, the side support wheel 1000 follows the upper turntable 2 in a circular motion. The side support wheel 1000 provides additional support force to the upper turntable 2. During the rotation of the upper turntable 2, the side support wheel 1000 rolls along a preset path, which helps to ensure that the upper turntable 2 rotates in a predetermined direction and angle, thereby improving the stability of the upper turntable 2 during the rotation process. There may be multiple side support wheels 1000.

[0084] It should be noted that, for ease of installation, disassembly, and relocation, this turning device can be assembled into a single unit before leaving the factory, consisting of the lower turntable 1, upper turntable 2, slewing bearing 3, drive unit, and side support wheel 1000, without further disassembly.

[0085] Furthermore, such as Figure 3 As shown, the turning device of this utility model also includes two pads 13. One pad 13 is disposed on the first connecting block 10, and the other pad 13 is disposed on the second connecting block 11. After the first connecting block 10 and the second connecting block 11 are spliced ​​and fixed, the two pads 13 form a circular track, and the side support wheel 1000 rolls on the pads 13. By fixing the pads 13 to the first connecting block 10 and the second connecting block 11 respectively, and forming a circular track after splicing, a stable rolling path is provided for the side support wheel 1000. This design helps to prevent the side support wheel 1000 from deviating or jumping due to uneven force or external interference during rolling, thereby ensuring that the side support wheel 1000 makes smooth circular motion.

[0086] In summary, the turning device of this utility model embodiment can quickly realize the turning operation of the transport equipment, with high turning efficiency and low construction cost.

[0087] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0088] The above description is merely a specific embodiment of the present invention, enabling those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments described herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A turning device, characterized in that The device comprises a lower turntable, an upper turntable, a slewing bearing, a driving device, a support frame, a plurality of weighing seats, a plurality of anchoring assemblies and an electrical control system, wherein, The lower turntable is provided with at least two groups of anchoring hole groups, each group of anchoring hole groups is provided with at least three anchoring holes, a first anchor rod assembly is fixedly installed at one end of the anchoring hole, and the other end can be fixedly connected to a box girder to fix the lower turntable to the box girder; The slewing bearing comprises an outer ring and an inner ring that rotate relative to each other, the outer ring is detachably connected to the lower turntable, and the inner ring is located in the outer ring and is detachably connected to the upper turntable; The driving device is arranged on the upper turntable, and an output end of the driving device is drivingly connected to the outer ring to enable the outer ring and the inner ring to rotate relative to each other; The support frame is detachably connected to the upper turntable; The weighing seat is movably arranged on the support frame, and a pressure sensor is arranged on the weighing seat; A plurality of the anchoring assemblies are arranged in one-to-one correspondence with a plurality of the weighing seats, and the anchoring assemblies are detachably connected to the support frame, the anchoring assembly comprises a limiting beam and two second anchor rod assemblies, one end of the second anchor rod assembly is fixed to the limiting beam, and the other end of the second anchor rod assembly is fixed to the support frame to fix a preset fixing part of the transport frame device in a region formed in a reverse U shape by the two second anchor rod assemblies and the limiting beam; The electrical control system is connected to the driving device and the pressure sensor.

2. The turning device according to claim 1, characterized in that The lower turntable comprises a first connecting block, a second connecting block and a plurality of first anchor rod assemblies, the first connecting block and the second connecting block are connected by bolts, wherein, The first connecting block is provided with at least three anchoring holes, the second connecting block is provided with at least three anchoring holes, and the three anchoring holes on the first connecting block and the three anchoring holes on the second connecting block are arranged in one-to-one symmetry with the transverse central axis of the lower turntable as the reference; The first anchor rod assembly fixes the first connecting block or the second connecting block to the box girder through the anchoring hole.

3. The turning device according to claim 2, characterized in that The first anchor rod assembly mounted on the first connecting block is arranged in a staggered manner with the first anchor rod assembly mounted on the second connecting block.

4. The turning device of claim 2, wherein The first anchor rod assembly comprises an anchor rod, two anchoring heads, a gasket, the two anchoring heads are threadedly connected to the head and tail of the anchor rod respectively, the gasket is sleeved on the anchor rod, the anchoring head at one end presses the gasket against the first connecting block or the second connecting block, and the anchoring head at the other end is fixedly connected to the box girder.

5. The turning device of claim 1, wherein The support frame comprises: Two lower longitudinal beams, the two lower longitudinal beams are arranged side by side along the length direction of the upper turntable, and the lower longitudinal beams are detachably connected to the upper turntable; A first cross beam and a second cross beam, the first cross beam and the second cross beam are detachably connected between the two lower longitudinal beams; Two first combined columns and two second combined columns, one first combined column and one second combined column are detachably connected to each lower longitudinal beam; A front cross beam, the front cross beam is detachably connected to the two first combined columns respectively; A third crossbeam and a fourth crossbeam, the third crossbeam is detachably connected on the front crossbeam, and a hinge joint is arranged between the third crossbeam and the front crossbeam, the fourth crossbeam is detachably connected on the two second combined columns, and the weighing seat is movably arranged on the third crossbeam and the fourth crossbeam; A first diagonal brace and a second diagonal brace, one end of the first diagonal brace is hingedly connected on the fourth crossbeam, the other end of the first diagonal brace is hingedly connected on the first combined column, one end of the second diagonal brace is hingedly connected on the second combined column, and the other end of the second diagonal brace is hingedly connected on the front crossbeam.

6. The turning device according to claim 5, characterized in that The support frame further comprises two third diagonal braces, the two third diagonal braces are distributed in a m-shape, one end of the third diagonal brace is hingedly connected on the fourth crossbeam, and the other end of the third diagonal brace is hingedly connected on the second combined column or one of the hinge seats arranged on the second crossbeam.

7. The turning device according to claim 5, characterized in that Opposite sides of the third crossbeam and the fourth crossbeam are respectively provided with guardrail platforms.

8. The turning arrangement of claim 1, wherein, The support frame is detachably connected with a combined escalator, the combined escalator comprises a plurality of escalators, and the escalators are fixedly connected with each other through U-shaped bolts.

9. The turning device of claim 2, wherein The support frame further comprises a side support wheel, the side support wheel is fixed on one side of the upper turntable close to the lower turntable, and the side support wheel follows the upper turntable to make a circular motion when the upper turntable rotates.

10. The turning arrangement of claim 9, wherein The support frame further comprises two pads, one pad is arranged on the first connecting block, and the other pad is arranged on the second connecting block, and the two pads form a circular track after the first connecting block and the second connecting block are spliced and fixed, and the side support wheel rolls on the pads.

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