Gantry rotating system of TPD construction method machine
By using a hydraulically driven, multi-axis coordinated adjustment gantry rotation system, the problem of insufficient verticality control of the cutter assembly in complex geological conditions of the TPD method machine has been solved, achieving multi-degree-of-freedom tilt angle adjustment and high stability, thus improving construction accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-19
- Publication Date
- 2026-04-07
AI Technical Summary
Traditional TPD (Transformer-Doped Diameter) machines have low gantry system adjustment freedom, making it difficult to flexibly adjust the verticality of the cutter assembly under complex geological conditions. Furthermore, they rely on external adjustment devices, which are cumbersome and inefficient.
The gantry rotation system adopts hydraulic drive and multi-axis coordinated adjustment. The gantry is driven to rotate around the central axis by hydraulic cylinders and moves in the strip shaft hole through the auxiliary shaft tooling to achieve multi-degree-of-freedom tilt angle adjustment. Combined with the design of elliptical slide groove and oil groove, lubrication and stability are ensured.
It significantly improves the adjustability and reliability of the gantry system, making it suitable for high-precision construction under complex geological conditions. It also enhances the flexibility and efficiency of verticality control of the cutter chain assembly, reduces maintenance costs, and extends the service life of the equipment.
Smart Images
Figure CN224093401U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to underground continuous wall construction equipment technical field especially relates to a TPD method machine's portal rotation system. BACKGROUND
[0002] In the field of underground continuous wall construction, TPD method machine (Trenching Pile Diaphragm method machine) as the core equipment, undertakes the key task of high-precision, high-efficiency trenching operation. Its continuous cutting and trenching through chain cutter assembly form underground continuous wall structure, and are widely used in subway, foundation pit support, water conservancy engineering and other scenes. The performance of TPD method machine directly determines the construction quality and efficiency, and the perpendicularity control of chain cutter assembly is particularly critical - if the perpendicularity deviation is too large, it is easy to cause uneven wall, joint leakage and other problems, and even cause engineering accidents in serious cases.
[0003] The traditional TPD method machine mainly consists of the following core components:
[0004] 1. Chassis system: adopt track or wheel type structure, provide overall support and walking function for the equipment, to adapt to the moving demand of complex terrain;
[0005] 2. Frame: installed on the chassis system, as the main frame bearing the load of portal system and chain cutter assembly;
[0006] 3. Portal system: fixed on the frame, controls the vertical lifting movement of chain cutter assembly through the guide mechanism, to ensure the trenching accuracy;
[0007] 4. Chain cutter assembly: continuously cuts through the guide of portal system, and its movement stability directly determines the trenching quality.
[0008] However, in the prior art, the portal system usually adopts rigid fixed structure or single shaft adjustment mode, which has the following limitations:
[0009] 1. Low adjustment freedom: the traditional portal system can only realize the vertical lifting of chain cutter assembly, and it is difficult to flexibly adjust the left and right inclination angle, resulting in insufficient perpendicularity control of chain cutter assembly under complex geological conditions (such as inclined stratum, uneven stratum);
[0010] 2. Dependence on external adjustment device: some equipment need to rely on additional auxiliary device (such as ground oil cylinder or manual adjustment mechanism) to correct the inclination angle, which is complicated and inefficient;
[0011] In view of the above problems, there is an urgent need for a gantry rotation system capable of realizing multi-degree-of-freedom inclination angle adjustment of the gantry, autonomous control of the verticality of the chain cutter assembly, and high stability. SUMMARY
[0012] To solve the above problems, the utility model discloses a gantry rotation system of TPD construction method machine has the advantages of improving the adjustment ability and reliability of the gantry system, realizing multi-degree-of-freedom inclination angle adjustment, and autonomously controlling the verticality of the chain cutter assembly.
[0013] To achieve the above purpose, the application provides a gantry rotation system of TPD construction method machine, and the technical scheme is as follows: a fixed gantry is connected to a device fixed mounting seat at the bottom, a center shaft hole and a plurality of strip-shaped shaft holes centered on the center shaft hole are arranged in the middle; a rotating gantry is arranged in the middle and is provided with a center shaft hole and a plurality of auxiliary shaft holes centered on the center shaft hole; a center shaft tool is arranged in the center shaft hole of the fixed gantry and the center shaft hole of the rotating gantry; a plurality of auxiliary shaft tools are arranged through the strip-shaped shaft hole of the fixed gantry and the auxiliary shaft hole of the rotating gantry respectively; a hydraulic oil cylinder is hinged to the connecting seat of the fixed gantry and the rotating gantry at the cylinder body end and the output shaft end respectively; the hydraulic oil cylinder drives the rotating gantry to rotate around the center shaft tool, and adjusts the left and right inclination angles of the rotating gantry through the moving range of the auxiliary shaft tool in the strip-shaped shaft hole.
[0014] Further, the application also provides that the hydraulic oil cylinder is two, which are arranged horizontally and parallel on the upper and lower sides of the center shaft hole, and the cylinder body end and the output shaft end are hinged to the corresponding connecting seats of the fixed gantry and the rotating gantry respectively.
[0015] Further, the application also provides that the left and right directions of the hydraulic oil cylinders on the upper and lower sides are consistent, one of the hydraulic oil cylinders is pushed out, and the other hydraulic oil cylinder is pulled back synchronously to realize the inclination angle adjustment of the rotating gantry.
[0016] Further, the application also provides that the connecting seats are arranged on the fixed gantry and the rotating gantry respectively, the cylinder body end of the hydraulic oil cylinder is hinged to the connecting seat of the fixed gantry, and the output shaft end is hinged to the connecting seat of the rotating gantry.
[0017] Further, the application also provides that the center rotating shaft tool and the auxiliary rotating shaft tool each include a rotating shaft body, a first end of which is provided with a radially outwardly protruding stop ring, and an outer surface of a second end of which is concave to form an annular groove; a gasket is sleeved on the first end of the rotating shaft body and located inside the stop ring; after the rotating shaft body passes through corresponding shaft holes of the fixed gantry and the rotating gantry, the gasket and the stop ring are pressed against the surface of the gantry; a lock plate is fixedly connected with the gasket and at least partially clamped into the annular groove of the rotating shaft body.
[0018] Further, the application also provides that the stop ring is a circular ring structure arranged circumferentially along the first end of the rotating shaft body.
[0019] Further, the application also provides that the lock plate is two or more, and the multiple lock plates are enclosed into an annular structure with an inner ring embedded in the annular groove.
[0020] Further, the application also provides that the gasket is provided with a threaded hole, the lock plate is provided with a through hole, and a bolt is fixedly connected with the threaded hole through the through hole, so as to fix the lock plate and the gasket.
[0021] Further, the application also provides that the rotating shaft body is internally provided with an oil channel, an oil channel inlet is arranged on an end surface of the first end of the rotating shaft body, and at least two oil channel outlets are arranged on the side surface of the rotating shaft body between the gasket and the stop ring; for the center rotating shaft tool, the oil channel outlets are respectively communicated with the oil grooves in the center shaft hole of the fixed gantry and the center shaft hole of the rotating gantry; for the auxiliary rotating shaft tool, the oil channel outlets are respectively communicated with the oil grooves in the strip-shaped shaft hole of the fixed gantry and the auxiliary shaft hole of the rotating gantry.
[0022] Further, the application also provides that the strip-shaped shaft hole is a symmetrically distributed elliptical sliding groove, which is used for limiting the movement range of the auxiliary rotating shaft tool and realizing lubrication through the oil groove.
[0023] As can be seen from the above, the gantry rotating system of the TPD construction method machine, the hydraulic oil cylinder and the rotating shaft tool provided by the application significantly improve the adjusting ability and reliability of the gantry system through the coordinated adjustment of the multiple shafts driven by the hydraulic pressure, and are especially suitable for high-precision construction requirements under complex geological conditions, and have the advantages of improving the adjusting ability and reliability of the gantry system, realizing multi-degree-of-freedom inclination adjustment and autonomously controlling the perpendicularity of the chain cutter assembly. BRIEF DESCRIPTION OF DRAWINGS
[0024] Figure 1 It is a perspective view of the gantry rotating system provided by the application (without a top gantry).
[0025] Figure 2 It is a front view of the gantry rotating system provided by the application (with a top gantry).
[0026] Figure 3An assembly diagram of a fixed gantry and a rotating gantry is provided.
[0027] Figure 4 An assembly diagram of a rotating gantry (without a top gantry).
[0028] Figure 5 An assembly diagram of a fixed gantry.
[0029] Figure 6 An assembly diagram of a center shaft tooling or a sub-shaft tooling.
[0030] Figure 7 An assembly sectional view of a center shaft tooling or a sub-shaft tooling. DETAILED DESCRIPTION
[0031] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments shown in the drawings are examples, and are intended to explain the present application, and cannot be understood as limiting the present application.
[0032] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0033] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.
[0034] In the utility model, unless another definite provision and limitation, the terms "mount", "link", "connect", "fix" and so on should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connect, can be mechanical connection, also can be electrical connection, can be direct connection, also can indirectly connect through intermediate medium, can be the intercommunication of two elements. For ordinary skilled in the art, can understand the concrete meaning of the above terms in the utility model according to specific circumstances.
[0035] In the utility model, unless another definite provision and limitation, the first feature is "on" or "under" the second feature can include the direct contact of the first and second features, or the contact of the first and second features through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than the second feature. The first feature "under", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than the second feature.
[0036] As shown in Figures 1-7 The utility model discloses a TPD construction method machine's portal rotation system, including fixed portal 1, rotating portal 2, center pivot tooling 3, a plurality of vice pivot tooling 4 and hydraulic cylinder 5. The bottom of fixed portal 1 is connected to the equipment fixed mounting seat, and the middle part is provided with a center shaft hole 100 and a plurality of strip shaft holes 101 with the center shaft hole 100 as the center. The middle part of rotating portal 2 is provided with a center shaft hole 100 and a plurality of vice shaft holes 202 with the center shaft hole 100 as the center. Center pivot tooling 3 is arranged in the center shaft hole 100 of fixed portal 1 and the center shaft hole 100 of rotating portal 2. A plurality of vice pivot tooling 4 respectively pass through the strip shaft hole 101 of fixed portal 1 and the vice shaft hole 202 of rotating portal 2. The cylinder end and the output shaft end of hydraulic cylinder 5 are respectively hinged on the connecting seat 103 of fixed portal 1 and rotating portal 2. Hydraulic cylinder 5 drives rotating portal 2 to rotate around center pivot tooling 3, and adjusts the left and right inclination angle of rotating portal 2 through the moving range of vice pivot tooling 4 in strip shaft hole 101.
[0037] Specifically, the fixed gantry 1 provides stable support and guidance through the central shaft hole 100 and the bar-shaped shaft hole 101, ensuring the stability of the rotating gantry 2 during rotation. The rotating gantry 2 is connected to the fixed gantry 1 through the central shaft hole 100 and the secondary shaft hole 202, realizing rotation and inclination adjustment. The central rotating shaft tooling 3 serves as the rotation center of the rotating gantry 2, ensuring the stability of the rotating gantry 2 rotating around the fixed shaft. The secondary rotating shaft tooling 4 adjusts the left and right inclination angles of the rotating gantry 2 through the movement range limitation of the bar-shaped shaft hole 101, thereby realizing multi-degree-of-freedom adjustment. The hydraulic oil cylinder 5 drives the rotating gantry 2 to rotate and adjusts the inclination angle of the rotating gantry 2 through the movement of the secondary rotating shaft tooling 4 in the bar-shaped shaft hole 101, thereby solving the technical problem of the gantry system being difficult to flexibly adjust the left and right inclination angles under complex geological conditions.
[0038] The technical solution of the present application significantly improves the adjustment capability and reliability of the gantry system through hydraulic drive multi-axis cooperative adjustment. The structural design of the fixed gantry 1 and the rotating gantry 2 ensures the stability of the system, and the cooperation of the central rotating shaft tooling 3 and the secondary rotating shaft tooling 4 realizes multi-degree-of-freedom adjustment of the rotating gantry 2. The driving mode of the hydraulic oil cylinder 5 makes the inclination angle adjustment of the rotating gantry 2 more flexible and accurate. Compared with the prior art, the technical solution of the present application can better adapt to and adjust the perpendicularity of the chain cutter assembly under complex geological conditions, improving the construction precision and efficiency.
[0039] Further, the bar-shaped shaft hole 101 is a symmetrically distributed elliptical sliding groove for limiting the movement range of the secondary rotating shaft tooling 4 and realizing lubrication through the oil groove 400. Among them, the design of the elliptical sliding groove effectively limits the movement range of the secondary rotating shaft tooling 4 between the fixed gantry 1 and the rotating gantry 2, ensuring that the inclination angle adjustment of the rotating gantry 2 is within a controllable range. The oil groove 400 in it can provide necessary lubrication during the movement of the secondary rotating shaft tooling 4, reduce friction, and improve the stability and service life of the system. Specifically, the symmetric distribution design of the elliptical sliding groove enables the secondary rotating shaft tooling 4 to maintain balance during movement, avoiding structural deformation or damage due to excessive unilateral stress. The oil groove 400 can be arranged on the inner wall of the bar-shaped shaft hole 101 or the surface of the secondary rotating shaft tooling 4, and the lubricating oil is delivered to the friction part through the oil circuit system to ensure the lubrication effect. The lubricating oil circuit of the oil groove 400 is described in detail below. Thus, through the synergistic effect of the elliptical sliding groove and the oil groove 400, not only the problem of excessive movement range of the secondary rotating shaft tooling 4 is solved, but also the operation efficiency of the system is improved through the lubrication mechanism. Compared with the prior art, this design not only ensures the stability of the gantry system, but also reduces maintenance costs and prolongs the service life of the equipment.
[0040] As Figure 2As shown, there are two hydraulic cylinders 5, which are horizontally parallel to each other on the upper and lower sides of the central shaft hole 100, respectively. The cylinder body end and the output shaft end are respectively hinged to the corresponding connecting seats 103 of the fixed gantry 1 and the rotating gantry 2. Specifically, the horizontal parallel arrangement of the hydraulic cylinders 5 allows the two cylinders to work synchronously when driving the rotating gantry 2, thereby achieving precise adjustment of the tilt angle of the rotating gantry 2. This arrangement not only enhances the system's adjustment capability but also ensures the stability of the rotating gantry 2 during the adjustment process. The cylinder body end and the output shaft end of the hydraulic cylinder 5 are respectively hinged to the connecting seats 103 of the fixed gantry 1 and the rotating gantry 2, ensuring the stability and reliability of the cylinder when driving the rotating gantry 2 to rotate. In addition, the installation position and hinge method of the hydraulic cylinders 5 can be adjusted according to the actual application scenario to adapt to different working requirements.
[0041] Therefore, by setting two hydraulic cylinders 5, located on the upper and lower sides of the central shaft hole 100 respectively, and hinged to the connecting seats 103 of the fixed gantry 1 and the rotating gantry 2 respectively, the adjustment capability of the gantry rotation system is significantly enhanced. The parallel arrangement of the two hydraulic cylinders 5 makes the tilt angle adjustment of the rotating gantry 2 more stable and precise, solving the problem of insufficient adjustment capability of a single hydraulic cylinder 5. The cylinder body end and output shaft end of the hydraulic cylinder 5 are hinged to the connecting seats 103 of the fixed gantry 1 and the rotating gantry 2 respectively, ensuring the stability and reliability of the hydraulic cylinder 5 when driving the rotating gantry 2 to rotate. Compared with the prior art, the technical solution of this application has significantly improved in terms of adjustment accuracy, stability and reliability, and is especially suitable for high-precision construction requirements under complex geological conditions.
[0042] Furthermore, the hydraulic cylinders 5 on both the upper and lower sides are oriented symmetrically. When one hydraulic cylinder 5 pushes outward, the other hydraulic cylinder 5 simultaneously pulls back, thereby adjusting the tilt angle of the rotating gantry 2. The symmetrical orientation of the hydraulic cylinders 5 means that the two hydraulic cylinders 5 are installed in the same direction, i.e., their cylinder bodies and output shafts are in the same relative position. This design allows the hydraulic cylinders 5 to work collaboratively during the pushing and pulling process, avoiding motion interference caused by inconsistent orientations. As a preferred embodiment, the pushing and pulling action of the hydraulic cylinders 5 can be achieved through a hydraulic control system. This system can precisely control the extension and retraction speed and force of the hydraulic cylinders 5, ensuring the synchronization of the two hydraulic cylinders 5. In addition, the pushing and pulling action of the hydraulic cylinders 5 can be monitored and adjusted in real time through sensors and a feedback system to further improve the accuracy and stability of the tilt angle adjustment.
[0043] Specifically, when one hydraulic cylinder 5 pushes outward, the other hydraulic cylinder 5 simultaneously pulls back. This push-pull action allows the rotating gantry 2 to adjust its tilt angle around the central pivot fixture 3. Through this synchronized push-pull method, the tilt angle of the rotating gantry 2 can be precisely adjusted within a certain range, thus solving the technical problem of tilt angle adjustment for the rotating gantry 2. Compared with existing technologies, the technical solution of this application achieves multi-degree-of-freedom tilt angle adjustment of the rotating gantry 2 through the synchronized push-pull action of the hydraulic cylinders 5, significantly improving the adjustment capability and reliability of the gantry system, and is particularly suitable for high-precision construction requirements under complex geological conditions.
[0044] In the specific design, both the fixed gantry 1 and the rotating gantry 2 are equipped with connecting seats 103. The cylinder body end of the hydraulic cylinder 5 is hinged to the connecting seat 103 of the fixed gantry 1, and the output shaft end is hinged to the connecting seat 103 of the rotating gantry 2. The connecting seat 103 can be designed in various ways. For example, it can be a metal plate welded or bolted to the gantry, with hinge holes on its surface for hinged connection to the end of the hydraulic cylinder 5. Bearings or bushings can be installed in the hinge holes to reduce friction and improve the flexibility of the hinge. Furthermore, the position of the connecting seat 103 can be adjusted according to the length of the hydraulic cylinder 5 and the structure of the gantry to ensure that the hydraulic cylinder 5 provides sufficient torque and stability when driving the rotating gantry 2. As a preferred embodiment, the connecting seat 103 can be made of high-strength steel to withstand larger loads and impacts. By setting the connecting seat 103, the cylinder body end and output shaft end of the hydraulic cylinder 5 are hinged to the fixed gantry 1 and the rotating gantry 2 respectively. This ensures that the connection point can withstand a large torque and impact force when the hydraulic cylinder 5 drives the rotating gantry 2 to rotate, preventing loosening or damage at the connection point, thereby improving the stability and reliability of the system. Specifically, the hinged connection allows the hydraulic cylinder 5 a certain degree of freedom during the driving process, enabling it to adapt to small displacements during gantry rotation, reducing stress concentration, and extending the service life of the equipment. Compared with existing technologies, this technical solution significantly improves the stability and reliability of the gantry system by optimizing the connection structure, and is particularly suitable for high-precision construction requirements under complex geological conditions.
[0045] like Figure 6 and 7As shown, both the central rotating shaft fixture 3 and the secondary rotating shaft fixture 4 include: a rotating shaft body 301, with a radially outwardly protruding retaining ring 302 at its first end and an annular groove 303 formed by the concave outer surface of its second end; a washer 304, fitted onto the first end of the rotating shaft body 301 and located inside the retaining ring 302; after the rotating shaft body 301 passes through the corresponding shaft holes of the fixed gantry 1 and the rotating gantry 2, the washer 304 and the retaining ring 302 press against the surface of the gantry; and a locking plate 305, fixedly connected to the washer 304 and at least partially engaged in the annular groove 303 of the rotating shaft body 301. The retaining ring 302 and the washer 304 of the rotating shaft body 301, by pressing against the surface of the gantry, ensure the fixing of the rotating shaft fixture on the gantry and prevent displacement of the rotating shaft during rotation. The locking plate 305, fixedly connected to the washer 304 and engaged in the annular groove 303 of the rotating shaft body 301, further enhances the stability of the rotating shaft fixture. The central rotating shaft fixture 3 and the auxiliary rotating shaft fixture 4, through the combined design of retaining ring 302, washer 304, and locking plate 305, enable rapid assembly and disassembly with high stability without modifying the fixed gantry 1 and the rotating gantry 2, significantly improving the system's maintenance convenience and adaptability. Specifically, retaining ring 302 and washer 304 press against the corresponding shaft holes on both sides of the fixed gantry 1 and the rotating gantry 2, ensuring stable installation of the rotating shaft; locking plate 305 is fixed on washer 304, and locking plate 305 also engages in the groove to form an axial lock, further restricting the axial movement of the rotating shaft. Thus, this technical solution solves the technical problems of installation stability, axial limiting capability, and ease of assembly and disassembly of rotating shaft fixtures in gantry rotation systems, and compared with existing technologies, it has higher installation efficiency and better maintenance convenience. In summary, this application effectively solves the problem of fixing and lubrication of the rotating shaft tooling in the gantry rotation system through the combined design of the retaining ring 302, washer 304 and locking plate 305, as well as the oil circuit design inside the rotating shaft body 301, which significantly improves the system's installation efficiency, maintenance convenience and operational stability.
[0046] In the specific design, the retaining ring 302 is a circular ring structure circumferentially arranged along the first end of the rotating shaft body 301. The design of the retaining ring 302 can be achieved in various ways. For example, the retaining ring 302 can be integrally molded and directly cast or forged with the rotating shaft body 301, or fixed to the first end of the rotating shaft body 301 by welding, bolting, or other methods. The material of the retaining ring 302 can be high-strength steel or other wear-resistant materials to ensure its stability during long-term use. Furthermore, the circular ring structure of the retaining ring 302 can be designed as a continuous closed ring or a segmented ring for easy installation and disassembly. As a component of the rotating shaft body 301, the circular ring structure of the retaining ring 302 allows it to be evenly distributed at the first end of the rotating shaft body 301. This ensures that after the rotating shaft body 301 passes through the shaft hole of the gantry, the retaining ring 302 can effectively press against the surface of the gantry, ensuring a stable connection between the rotating shaft body 301 and the gantry. This design not only strengthens the connection between the shaft body 301 and the gantry, ensuring uniform circumferential stress, but also solves the problem of unstable connection in traditional designs. Compared with existing technologies, this design simplifies the installation and disassembly process and improves the overall stability and reliability of the system.
[0047] Furthermore, the locking plate 305 consists of two or more pieces, forming a ring structure, with its inner ring embedded in the annular groove 303. Specifically, the locking plate 305 is designed in a multi-piece combination manner, forming a ring structure so that the inner ring of the locking plate 305 can be tightly embedded in the annular groove 303 of the rotating shaft body 301. This design not only increases the contact area between the locking plate 305 and the washer 304, but also improves the fixing firmness between the locking plate 305 and the washer 304 through multiple fixing points. As a preferred embodiment, the number of locking plates 305 can be adjusted according to actual needs, for example, using two, three, or more locking plates 305 to ensure a tight fit between the locking plate 305 and the annular groove 303. In addition, the material of the locking plate 305 can be high-strength alloy steel to enhance its compressive strength and wear resistance. To address this, the technical solution utilizes a multi-plate enclosure structure 305, allowing the plates 305 to be more evenly distributed within the annular groove 303 of the rotating shaft body 301, thereby enhancing overall stability and vibration resistance. Compared to existing technologies, this design effectively solves the problem of insecure fixing between the locking plates 305 and the washers 304, improving the reliability and service life of the equipment. By increasing the contact area and fixing points, the connection between the locking plates 305 and the washers 304 is more stable, reducing loosening caused by vibration or impact, thus improving the overall performance of the equipment.
[0048] In the specific design, the washer 304 has a threaded hole 306, and the locking plate 305 has a through hole 307. A bolt 308 passes through the through hole 307 and is fixed to the threaded hole 306, thus securing the locking plate 305 and the washer 304. Specifically, the threaded hole 306 is located on the surface of the washer 304, and the through hole 307 is located at the corresponding position on the locking plate 305. The bolt 308 passes through the through hole 307 of the locking plate 305 and is threadedly connected to the threaded hole 306 on the washer 304, thereby tightly fixing the locking plate 305 and the washer 304 together. As a preferred embodiment, the head of the bolt 308 can be designed as hexagonal to facilitate tightening with tools. Furthermore, the bolt 308 can be made of high-strength steel to ensure that it will not loosen or break during long-term use. Through the above technical means, the fixation between the locking plate 305 and the washer 304 is more secure, avoiding loosening problems caused by vibration or external forces. This design, through the tightening action of bolt 308, ensures the reliable connection between locking plate 305 and washer 304, thereby improving the stability of the overall structure. Compared with existing technologies, this solution not only simplifies the fixing structure but also enhances the strength and durability of the connection, making it suitable for mechanical devices requiring high stability and reliability.
[0049] like Figure 7 As shown, the rotating shaft body 301 has an oil passage 309 inside. The oil passage inlet 310 is opened on the end face of the first end of the rotating shaft body 301, and at least two oil passage outlets 311 are opened on the side of the rotating shaft body 301 between the washer 304 and the retaining ring 302. For the central rotating shaft fixture 3, its oil passage outlet 311 is connected to the oil groove 400 in the central shaft hole 100 of the fixed gantry 1 and the central shaft hole 100 of the rotating gantry 2, respectively. For the auxiliary rotating shaft fixture 4, its oil passage outlet 311 is connected to the oil groove 400 in the strip shaft hole 101 of the fixed gantry 1 and the auxiliary shaft hole 202 of the rotating gantry 2, respectively. Specifically, the design of the oil passage 309 allows lubricating oil to enter the interior of the rotating shaft body 301 through the oil passage inlet 310 and flow into the oil groove 400 in the shaft holes of the fixed gantry 1 and the rotating gantry 2 through the oil passage outlet 311. The oil inlet 310 is located on the end face of the first end to facilitate the injection of lubricating oil, while the oil outlet 311 is located on the side of the rotating shaft body 301 between the washer 304 and the retaining ring 302 to ensure that the lubricating oil can be evenly distributed to the parts that need lubrication. For the central rotating shaft fixture 3, the oil outlet 311 is connected to the oil groove 400 in the central shaft hole 100 of the fixed gantry 1 and the rotating gantry 2 to ensure that the central rotating shaft fixture 3 is adequately lubricated during rotation. For the auxiliary rotating shaft fixture 4, the oil outlet 311 is connected to the oil groove 400 in the strip-shaped shaft hole 101 of the fixed gantry 1 and the auxiliary shaft hole 202 of the rotating gantry 2 to ensure that the auxiliary rotating shaft fixture 4 is adequately lubricated during movement.
[0050] As a preferred embodiment, the number of oil outlets 311 can be adjusted according to actual needs to ensure that the lubricating oil can cover all parts requiring lubrication. Furthermore, the position and size of the oil outlets 311 can be optimized according to the flow rate and pressure of the lubricating oil to improve lubrication efficiency. Thus, this technical solution, through the design of the oil passage 309, achieves effective lubrication between the shaft and the gantry, reducing friction and wear, and improving the stability and service life of the system. Compared with existing technologies, this solution, through the design of the internal oil passage 309, avoids the complexity and instability of external lubrication devices, simplifies the system structure, and simultaneously improves the uniformity and reliability of lubrication.
[0051] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0052] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.
Claims
1. A gantry rotation system for a TPD (Transformer-Doped Diagnostics) machine, characterized in that, include: A fixed gantry (1) is connected to a fixed mounting base for equipment at its bottom and has a central shaft hole (100) in the middle and a plurality of strip shaft holes (101) centered on the central shaft hole (100); A rotating gantry (2) has a central shaft hole (100) and a plurality of secondary shaft holes (202) centered on the central shaft hole (100); A central rotating shaft fixture (3) is inserted into the central shaft hole (100) of the fixed gantry (1) and the central shaft hole (100) of the rotating gantry (2); Multiple auxiliary rotating shaft fixtures (4) pass through the strip shaft hole (101) of the fixed gantry (1) and the auxiliary shaft hole (202) of the rotating gantry (2), respectively; The hydraulic cylinder (5) has its cylinder body end and output shaft end hinged to the connecting seat (103) of the fixed gantry (1) and the rotating gantry (2), respectively. The hydraulic cylinder (5) drives the rotating gantry (2) to rotate around the central rotating shaft tooling (3), and adjusts the left and right tilt angles of the rotating gantry (2) by the movement range of the auxiliary rotating shaft tooling (4) within the strip shaft hole (101).
2. The gantry rotation system according to claim 1, characterized in that, There are two hydraulic cylinders (5), which are arranged horizontally and parallel to each other on the upper and lower sides of the central shaft hole (100), and the cylinder body end and the output shaft end are respectively hinged to the corresponding connecting seats (103) of the fixed gantry (1) and the rotating gantry (2).
3. The gantry rotation system according to claim 2, characterized in that, The hydraulic cylinders (5) on the upper and lower sides are aligned in the same direction. When one hydraulic cylinder (5) pushes outward, the other hydraulic cylinder (5) pulls back simultaneously to achieve the tilt angle adjustment of the rotating gantry (2).
4. The gantry rotation system according to claim 1, characterized in that, The fixed gantry (1) and the rotating gantry (2) are respectively provided with connecting seats (103). The cylinder end of the hydraulic cylinder (5) is hinged to the connecting seat (103) of the fixed gantry (1), and the output shaft end is hinged to the connecting seat (103) of the rotating gantry (2).
5. The gantry rotation system according to claim 1, characterized in that, Both the central rotating shaft fixture (3) and the secondary rotating shaft fixture (4) include: The rotating shaft body (301) has a retaining ring (302) that protrudes radially outward at its first end, and an annular groove (303) formed by the inward concavity of the outer surface of its second end; Washer (304) is fitted onto the first end of the rotating shaft body (301) and located inside the retaining ring (302); after the rotating shaft body (301) passes through the corresponding shaft holes of the fixed gantry (1) and the rotating gantry (2), the washer (304) and the retaining ring (302) press against the surface of the gantry. The locking plate (305) is fixedly connected to the washer (304) and is at least partially engaged in the annular groove (303) of the rotating shaft body (301).
6. The gantry rotation system according to claim 5, characterized in that, The retaining ring (302) is a circular ring structure arranged circumferentially along the first end of the rotating shaft body (301).
7. The gantry rotation system according to claim 5, characterized in that, The locking plate (305) consists of two or more pieces, with multiple locking plates forming a ring structure, and its inner ring is embedded in the ring groove (303).
8. The gantry rotation system according to claim 5, characterized in that, The washer (304) has a threaded hole (306), and the locking plate (305) has a through hole (307). The bolt (308) passes through the through hole (307) and is fixed to the threaded hole (306) to achieve the fixing of the locking plate (305) and the washer (304).
9. The gantry rotation system according to claim 5, characterized in that, The rotating shaft body (301) is provided with an oil passage (309) inside. The oil passage inlet (310) is opened on the end face of the first end of the rotating shaft body (301), and at least two oil passage outlets (311) are opened on the side of the rotating shaft body (301) between the washer (304) and the retaining ring (302). For the central rotating shaft tooling (3), its oil outlet (311) is connected to the oil groove in the central shaft hole (100) of the fixed gantry (1) and the central shaft hole (100) of the rotating gantry (2); For the auxiliary shaft tooling (4), its oil outlet (311) is connected to the oil groove in the strip shaft hole (101) of the fixed gantry (1) and the auxiliary shaft hole (202) of the rotating gantry (2).
10. The gantry rotation system according to claim 9, characterized in that, The strip-shaped shaft hole (101) is a symmetrically distributed elliptical groove, which is used to limit the movement range of the auxiliary rotating shaft tool (4) and to achieve lubrication through the oil groove.