Tower crane lifting hydraulic system test and detection system

Abstract

A tower crane lifting hydraulic system test and detection system disclosed in an embodiment of the present invention comprises: a fixed frame, comprising an upper fixed end, a lower fixed end and a plurality of fixed columns, the lower fixed end being provided with a first articulated seat for connecting the first connecting end of a hydraulic cylinder of a hydraulic system to be tested; a sleeve frame, which is sleeved outside the fixed frame and can reciprocate relative to the fixed frame along a first direction of the fixed frame; the sleeve frame comprises an upper movable end, a lower movable end and a plurality of movable columns, the sleeve frame is also provided with a first hydraulic cylinder support beam, the two ends of the first hydraulic cylinder support beam are connected to two movable columns of the plurality of movable columns in a one-to-one correspondence, and are located at an end of the sleeve frame adjacent to the upper movable end; the first hydraulic cylinder support beam is provided with a second articulated seat for connecting the second connecting end of the hydraulic cylinder opposite to the first connecting end; and a hydraulic system detection module connected to the hydraulic cylinder. The embodiment of the present invention can reduce the difficulty of designing, testing and maintaining the tower crane lifting hydraulic system.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic system detection, and in particular to a tower crane jacking hydraulic system test detection system. Background Art

[0002] Tower crane (short for "tower crane", also known as "tower crane") is a kind of lifting equipment used in construction. The jacking hydraulic system is a very important and main component of the tower crane. The jacking hydraulic system includes, for example, a jacking cylinder and a hydraulic pump and other hydraulic control components connected to the jacking hydraulic cylinder. The working performance and status of the jacking hydraulic system seriously affect the stability and reliability of the tower crane. At present, the test and inspection of the jacking hydraulic system and the jacking hydraulic cylinder are only carried out in the type test of the jacking hydraulic cylinder before it leaves the factory. After the jacking hydraulic cylinder is installed on the tower crane, the working environment and scene of the jacking hydraulic cylinder are different from the test scene of the type test. As a result, the jacking hydraulic cylinder and the jacking hydraulic system in which it is located, which have passed the type test, often fail after being installed on the tower crane, and it is difficult to identify the cause of the failure, which greatly increases the difficulty of designing, testing and maintaining the jacking hydraulic system of the tower crane, and also increases the user's cost of use. Summary of the invention

[0003] In view of at least some of the defects or shortcomings in the prior art, an embodiment of the present invention provides a tower crane jacking hydraulic system test and detection system, which performs test and detection in a real test scenario, can detect faults in the jacking hydraulic system in advance, reduce the difficulty of designing, testing and maintaining the tower crane jacking hydraulic system, and save use costs.

[0004] On the one hand, the present invention provides a tower crane jacking hydraulic system test and detection system, including: a fixed frame, including: an upper fixed end, including a first fixed beam, a second fixed beam, a third fixed beam and a fourth fixed beam; a lower fixed end, arranged opposite to the upper fixed end and including a fifth fixed beam, a sixth fixed beam, a seventh fixed beam and an eighth fixed beam, and a first articulated seat for connecting the first connecting end of a hydraulic cylinder of a hydraulic system to be tested is arranged on a side of the fifth fixed beam adjacent to the upper fixed end; a first fixed column, one end of which is connected to the first fixed beam and the second fixed beam, and the other end of which is connected to the fifth fixed beam and the sixth fixed beam; a second fixed column, one end of which is connected to the second fixed beam and the third fixed beam, the other end of which is connected to the sixth fixed beam and the seventh fixed beam; a third fixed column; one end of which is connected to the third fixed beam and the fourth fixed beam, and the other end of which is connected to the seventh fixed beam and the eighth fixed beam; and a fourth fixed column, one end of which is connected to the fourth fixed beam and the first fixed beam, and the other end of which is connected to the eighth fixed beam and the fifth fixed beam; a sleeve, which is sleeved outside the fixed frame and can reciprocate relative to the fixed frame in a first direction, and the sleeve includes: an upper moving end, including a first moving beam, a second moving beam, a third moving beam and a fourth moving beam; a lower moving end, which is arranged opposite to the upper moving end and includes a fifth moving beam , the sixth moving beam, the seventh moving beam and the eighth moving beam; a first moving column, one end of which is connected to the first moving beam and the second moving beam, and the other end of which is connected to the fifth moving beam and the sixth moving beam; a second moving column, one end of which is connected to the second moving beam and the third moving beam, and the other end of which is connected to the sixth moving beam and the seventh moving beam; a third moving column; one end of which is connected to the third moving beam and the fourth moving beam, and the other end of which is connected to the seventh moving beam and the eighth moving beam; a fourth moving column, one end of which is connected to the fourth moving beam and the first moving beam, and the other end of which is connected to the eighth moving beam and the fifth moving beam; and a first hydraulic A cylinder support beam, whose two ends are respectively connected to the first movable column and the fourth movable column and are located between the first movable crossbeam and the fifth movable crossbeam; a second hinged seat for connecting the second connecting end of the hydraulic cylinder opposite to the first connecting end is provided on the side of the first hydraulic cylinder support beam adjacent to the lower movable end; a plurality of counterweight brackets are respectively arranged on the outside of the sleeve and arranged in pairs for placing counterweight blocks; a lifting device is installed on the upper fixed end of the fixed frame for placing the counterweight block on a pair of counterweight brackets of the plurality of counterweight brackets or removing the counterweight block from a pair of counterweight brackets on the plurality of counterweight brackets; and a hydraulic system detection module, connected to the hydraulic cylinder to detect the operating status of the hydraulic system to be detected.

[0005] On the other hand, an embodiment of the present invention provides a tower crane lifting hydraulic system test detection system, comprising: a fixed frame, comprising an upper fixed end, a lower fixed end and a plurality of fixed columns, the upper fixed end and the lower fixed end are respectively connected to the two ends of the plurality of fixed columns, and the lower fixed end is provided with a first hinge seat for connecting the first connecting end of the hydraulic cylinder of the hydraulic system to be tested; a sleeve frame, which is sleeved outside the fixed frame and can reciprocate relative to the fixed frame along a first direction of the fixed frame; the sleeve frame comprises an upper movable end, a lower movable end and a plurality of movable columns, the upper movable end and the lower movable end are respectively connected to the two ends of the plurality of movable columns, and a first hydraulic cylinder support beam is also provided on the sleeve frame, the two ends of the first hydraulic cylinder support beam are connected to two movable columns of the plurality of movable columns one by one, and are located at an end of the sleeve frame adjacent to the upper movable end; the first hydraulic cylinder support beam is provided with a second hinge seat for connecting the second connecting end of the hydraulic cylinder opposite to the first connecting end; and a hydraulic system detection module, connected to the hydraulic cylinder to detect the operating state of the hydraulic system to be detected.

[0006] In one embodiment of the present invention, the first articulated seat includes a first articulated ear and a second articulated ear that are arranged opposite to and at intervals, the first articulated ear is provided with a first U-shaped articulated hole, and the second articulated ear is provided with a second U-shaped articulated hole; the first connecting end of the hydraulic cylinder is located between the first articulated ear and the second articulated ear and is articulated to the first articulated seat through the first U-shaped articulated hole and the second U-shaped articulated hole.

[0007] In one embodiment of the present invention, the sleeve frame also includes a plurality of roller groups, which are respectively arranged on the sleeve frame; each of the roller groups includes a roller support mounted on the sleeve frame and a roller hinged on the roller support, and the roller is in rolling contact with the outer side surface of one of the plurality of fixed columns of the fixed frame that is perpendicular to the first direction so that the sleeve frame can reciprocate along the first direction relative to the fixed frame through the roller.

[0008] In one embodiment of the present invention, a limiting device is also provided on the sleeve frame, and the limiting device includes: a rotation limiting plate and a rotation limiting plate support plate, the rotation limiting plate support plate is fixed to the sleeve frame, the rotation limiting plate is provided with a first through hole, the rotation limiting plate support plate is provided with a pin, and the rotation limiting plate and the rotation limiting plate support plate are hingedly connected through the pin through the first through hole; a fixed limiting plate is also provided on the fixed frame, and the fixed limiting plate corresponds to the limiting device, when the sleeve frame moves upward along the first direction relative to the fixed frame, the fixed limiting plate drives the rotation limiting plate to rotate so that the fixed limiting plate bypasses the rotation limiting plate; when the sleeve frame moves downward along the first direction relative to the fixed frame, the first limiting end of the rotation limiting plate away from the first through hole abuts against the fixed limiting plate, and the second limiting end of the rotation limiting plate away from the first through hole and opposite to the first limiting end abuts against the sleeve frame.

[0009] In one embodiment of the present invention, a third articulated seat and a fourth articulated seat are further provided on the lower fixed end, and the third articulated seat and the fourth articulated seat are located on both sides of the first articulated seat; a second hydraulic cylinder support beam is also provided on the frame, and both ends of the second hydraulic cylinder support beam are connected to the two movable columns one by one, and are connected between the upper fixed end and the first hydraulic cylinder support beam; a fifth articulated seat and a sixth articulated seat are provided on the second hydraulic cylinder support beam, and the fifth articulated seat is provided corresponding to the third articulated seat, and the sixth articulated seat is provided corresponding to the fourth articulated seat.

[0010] In one embodiment of the present invention, the sleeve frame further comprises a plurality of counterweight brackets, and the plurality of counterweight brackets are respectively arranged outside the sleeve frame for placing counterweight blocks.

[0011] In one embodiment of the present invention, the plurality of counterweight supports are arranged in layers along the first direction and the counterweight supports on each layer are arranged in pairs.

[0012] In one embodiment of the present invention, the tower crane jacking hydraulic system test and detection system also includes a lifting device installed on the upper fixed end of the fixed frame, so as to place the counterweight block on the counterweight bracket arranged in pairs or remove the counterweight block from the counterweight bracket arranged in pairs.

[0013] In one embodiment of the present invention, the hydraulic system detection module includes: a data acquisition and conversion unit and a data processing and output unit; the data acquisition and conversion unit is used to connect to the hydraulic cylinder of the hydraulic system to be detected, and the data acquisition and conversion unit is connected to the data processing and output unit.

[0014] The above-mentioned one or more technical solutions may have the following advantages: the embodiment of the present invention simulates the actual working scene of the tower crane through the specific structure and setting of the tower crane jacking hydraulic system test and detection system, and performs test and detection in a real test scene, so that the fault of the jacking hydraulic system can be found in advance, so that the tower crane jacking hydraulic system can be accurately tested and detected, and the probability of failure of the tower crane jacking hydraulic system after being installed on the tower crane is reduced, and the difficulty of design, test and maintenance of the tower crane jacking hydraulic system is reduced, and the use cost is saved. At the same time, the tower crane jacking hydraulic system test and detection system provided by the present invention can be installed with hydraulic cylinders of different types and sizes for test and detection. Compared with the prior art that a corresponding and different test and detection equipment is required for a jacking hydraulic cylinder, the test and detection range of the hydraulic cylinder is expanded, so that the tower crane jacking hydraulic system test and detection system provided by the present invention has great versatility, and truly realizes one machine for multiple uses. In addition, compared with the conventional design of the circular hinge hole in the prior art, the setting of the U-shaped hinge hole is conducive to the installation and disassembly of the hydraulic cylinder and improves the work efficiency. In addition, the setting of the roller can reduce the movement resistance of the sleeve relative to the fixed frame in the first direction (Z direction), so that the rolling relative movement can be achieved between the two, which improves the smoothness of the relative movement, reduces the power loss, and saves costs. Furthermore, the coordinated setting of the limit device and the fixed limit plate does not affect the upward movement of the sleeve driven by the hydraulic cylinder, nor does it affect the test and detection of the lifting hydraulic system and the hydraulic cylinder. When the pressure holding performance of the hydraulic cylinder 20 is poor and the sleeve falls automatically, the sleeve can be limited to ensure the safety of equipment and personnel, and improve the safety of the equipment. In addition, the setting of the multi-articulated seat enables the tower crane lifting hydraulic system test and detection system to test and detect hydraulic cylinders of different strokes, further expanding the test and detection range of the hydraulic cylinder. The setting of the counterweight bracket can simulate the actual scenes of tower cranes of different specifications, thereby improving the versatility of the equipment. The setting of the lifting device can use the existing fixed frame as the bracket of the lifting device, so as to realize the lifting and removal of the configuration, so that there is no need to set up an additional bracket of the lifting device with a counterweight, which saves costs and improves efficiency. The hydraulic system detection module includes a data acquisition and conversion unit and a data processing and output unit, so that users can intuitively, directly and clearly understand the operating status of the hydraulic cylinder or even the jacking hydraulic system. Users can perform optimization operations such as troubleshooting and design improvement based on the displayed data, thus realizing digital test and detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 A three-dimensional structural schematic diagram of a tower crane jacking hydraulic system test and detection system provided by an embodiment of the present invention.

[0017] Figure 2 for Figure 1 Schematic diagram of the three-dimensional structure of the fixing frame.

[0018] Figure 3 for Figure 1 Schematic diagram of the three-dimensional structure of the frame.

[0019] Figure 4 for Figure 2 A local enlarged schematic diagram of area A in FIG.

[0020] Figure 5 for Figure 1 A structural schematic diagram of the tower crane jacking hydraulic system test and detection system from another perspective.

[0021] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure of the BB section.

[0022] Figure 7a for Figure 5 A local enlarged schematic diagram of the C area in FIG.

[0023] Figure 7b for Figure 7a Schematic diagram of the relative state of the rotating limit plate when it moves upward relative to the fixed limit plate.

[0024] Figure 7c for Figure 7a Schematic diagram of the relative state of the rotating limit plate when it moves downward relative to the fixed limit plate.

[0025] Figure 8 for Figure 1 A schematic diagram of the three-dimensional structure of another type of sleeve.

[0026] Fig. 9 for Figure 1 A schematic diagram of the three-dimensional structure of another fixing frame.

[0027] Fig.10 A three-dimensional structural schematic diagram of another tower crane jacking hydraulic system test and detection system provided by an embodiment of the present invention.

[0028] Fig.11 for Figure 1 Schematic diagram of the structure of the hydraulic system detection module.

[0029] Fig.12 for Fig.11 Schematic diagram of the data acquisition and conversion unit structure. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. In the description of the present invention, it should be noted that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figures 1 to 5 As shown, the embodiment of the present invention provides a tower crane jacking hydraulic system test detection system 10. Specifically, as Figure 1 As shown, the tower crane jacking hydraulic system test detection system 10 includes, for example: a fixed frame 100, a sleeve frame 200, and a hydraulic system detection module 500. The fixed frame 100 and the sleeve frame 200 are respectively provided with hydraulic cylinder mounting seats for mounting the hydraulic cylinder 20 of the hydraulic system to be detected. The fixed frame 100 is fixed to the ground by bolts, for example, to simulate the foundation of the tower crane. The sleeve frame 200 is sleeved on the outside of the fixed frame 100, simulating the tower body of the tower crane, which can, for example, be vertically ( Figure 1 The hydraulic system detection module 500 reciprocates relative to the fixed frame 100 in the Z direction. The hydraulic system detection module 500 is connected to the hydraulic cylinder 20. The hydraulic system here is, for example, a jacking hydraulic system of a tower crane, and the hydraulic cylinder is, for example, a jacking hydraulic cylinder. When the hydraulic system to be detected drives the hydraulic cylinder 20 to move, the hydraulic cylinder 20 drives the sleeve frame 200 to reciprocate in the Z direction, and the hydraulic system detection module 500 detects the performance parameters and state parameter data of the hydraulic cylinder 20 during the movement, so as to detect the operating state of the hydraulic system to be detected and the hydraulic cylinder 20.

[0032] Based on the above, Figure 2As shown, the fixing frame 100 includes, for example, an upper fixing end 110, a lower fixing end 120, and a plurality of fixing columns 130. The upper fixing end 110 and the lower fixing end 120 are arranged opposite to each other and are respectively connected to the two ends of the plurality of fixing columns 130. The upper fixing end 110 includes, for example, a first fixing beam 111, a second fixing beam 112, a third fixing beam 113, and a fourth fixing beam 114. The first fixing beam 111, the second fixing beam 112, the third fixing beam 113, and the fourth fixing beam 114 are sequentially connected to form a rectangular frame structure. The lower fixing end 120 includes, for example, a fifth fixing beam 121, a sixth fixing beam 122, a seventh fixing beam 123, and an eighth fixing beam 124, and the fifth fixing beam 121, the sixth fixing beam 122, the seventh fixing beam 123, and the eighth fixing beam 124 are sequentially connected to form a rectangular frame structure. The lower fixed end 120 is provided with a first hinge seat 140 for connecting the first connection end 210 of the hydraulic cylinder 20 of the hydraulic system to be tested. Specifically, the side of the fifth fixed beam 121 adjacent to the upper fixed end 110 is provided with a first hinge seat 140 for connecting the first connection end 210 of the hydraulic cylinder 20. The first fixed beam 111, the second fixed beam 112, the third fixed beam 113, the fourth fixed beam 114, the fifth fixed beam 121, the sixth fixed beam 122, the seventh fixed beam 123, and the eighth fixed beam 124 are, for example, respectively made of square steel pipes or assembled by angle steels or steel plates. The lower fixed end 120 is fixed on a flat ground, for example, by bolts or the like, so that the fixing frame 100 can be set as vertically as possible as a whole.

[0033] like Figure 2 As shown, the plurality of fixed columns 130 include, for example, a first fixed column 131, a second fixed column 132, a third fixed column 133, and a fourth fixed column 134. One end of the first fixed column 131 is connected to the first fixed beam 111 and the second fixed beam 112, and the other end thereof is connected to the fifth fixed beam 121 and the sixth fixed beam 122. One end of the second fixed column 132 is connected to the second fixed beam 122 and the third fixed beam 123, and the other end thereof is connected to the sixth fixed beam 122 and the seventh fixed beam 123; a third fixed column 133; one end thereof is connected to the third fixed beam 113 and the fourth fixed beam 114, and the other end thereof is connected to the seventh fixed beam 123 and the eighth fixed beam 124; and one end of the fourth fixed column 134 is connected to the fourth fixed beam 114 and the first fixed beam 111, and the other end thereof is connected to the eighth fixed beam 124 and the fifth fixed beam 121. In addition, reinforcing ribs are provided between two adjacent fixing columns to enhance the rigidity and strength of the fixing frame 100 and enhance the reliability of the equipment.

[0034] Of course, the first fixed beam 111, the second fixed beam 112, the third fixed beam 113 and the fourth fixed beam 114 may not be connected in sequence to form a rectangular frame structure, and two adjacent fixed beams among the first fixed beam 111, the second fixed beam 112, the third fixed beam 113 and the fourth fixed beam 114 are connected by one end of a corresponding fixed column. Similarly, the fifth fixed beam 121, the sixth fixed beam 122, the seventh fixed beam 123 and the eighth fixed beam 124 may not be connected in sequence to form a rectangular frame structure, and two adjacent fixed beams among the fifth fixed beam 121, the sixth fixed beam 122, the seventh fixed beam 123 and the eighth fixed beam 124 are connected by one end of a corresponding fixed column.

[0035] In addition, if Figure 1 and Figure 3 As shown, the sleeve frame 200 is sleeved on the outside of the fixed frame 100, and can be driven by the hydraulic cylinder 20 along the first direction ( Figure 1 The sleeve frame 200 reciprocates relative to the fixed frame (in the Z direction). The sleeve frame 200, for example, includes: an upper mobile end 210, a lower mobile end 220 and a plurality of mobile columns 230. The upper mobile end 210 and the lower mobile end 220 are respectively connected to the two ends of the plurality of mobile columns 230. Specifically, the upper mobile end 210, for example, includes a first mobile beam 211, a second mobile beam 212, a third mobile beam 213 and a fourth mobile beam 214. The first mobile beam 211, the second mobile beam 212, the third mobile beam 213 and the fourth mobile beam 214 are sequentially connected to form a rectangular frame structure. The lower mobile end 220 is arranged opposite to the upper mobile end 210, and includes a fifth mobile beam 221, a sixth mobile beam 222, a seventh mobile beam 223 and an eighth mobile beam 224; the fifth mobile beam 221, the sixth mobile beam 222, the seventh mobile beam 223 and the eighth mobile beam 224 are sequentially connected to form a rectangular frame structure.

[0036] Based on the above, the plurality of moving columns 230 include, for example, a first moving column 231, a second moving column 232, a third moving column 233, and a fourth moving column 234. One end of the first moving column 231 is connected to the first moving beam 211 and the second moving beam 212, and the other end thereof is connected to the fifth moving beam 221 and the sixth moving beam 222; one end of the second moving column 232 is connected to the second moving beam 212 and the third moving beam 213, and the other end thereof is connected to the sixth moving beam 222 and the seventh moving beam 223; one end of the third moving column 233 is connected to the third moving beam 213 and the fourth moving beam 214, and the other end thereof is connected to the seventh moving beam 223 and the eighth moving beam 224; one end of the fourth moving column 234 is connected to the fourth moving beam 214 and the first moving beam 211, and the other end thereof is connected to the eighth moving beam 224 and the fifth moving beam 221. In addition, reinforcing ribs are provided between two adjacent movable columns to enhance the rigidity and strength of the sleeve frame 200 and enhance the reliability of the equipment.

[0037] It is worth mentioning that the first moving beam 211, the second moving beam 212, the third moving beam 213 and the fourth moving beam 214 may not be connected in sequence to form a rectangular frame structure; two adjacent moving beams among the first moving beam 211, the second moving beam 212, the third moving beam 213 and the fourth moving beam 214 are connected by one end of a corresponding moving column. The fifth moving beam 221, the sixth moving beam 222, the seventh moving beam 223 and the eighth moving beam 224 may not be connected in sequence to form a rectangular frame structure, and two adjacent moving beams among the fifth moving beam 221, the sixth moving beam 222, the seventh moving beam 223 and the eighth moving beam 224 are connected by one end of a corresponding moving column.

[0038] In addition, if Figure 3 As shown, the sleeve frame 200 is also provided with a first hydraulic cylinder support beam 240. The two ends of the first hydraulic cylinder support beam 240 are connected one by one to two moving columns of the plurality of moving columns 230, such as the moving column 231 and the moving column 234. The first hydraulic cylinder support beam 240 is located at one end of the sleeve frame 200 adjacent to the upper moving end 210; Figure 5 As shown, the first hydraulic cylinder support beam 240 is provided with a second hinge seat 250 for connecting the second connection end 220 of the hydraulic cylinder 20 opposite to the first connection end 210. Here, the first connection end 210 and the second connection end 220 of the hydraulic cylinder can be a rod end connection end and a cylinder end connection end, respectively, and of course, it can also be the other way around, and the present invention is not limited thereto.

[0039] When testing a hydraulic system to be tested, such as a jacking hydraulic system, the first connection end 210 and the second connection end 220 of the hydraulic cylinder 20, such as a jacking hydraulic cylinder, are respectively hinged to the first hinge seat 140 and the second hinge seat 250. The hydraulic system detection module 500 is connected to the hydraulic cylinder 20. After the hydraulic system is running, the hydraulic system detection module 500 obtains the operating status data of the hydraulic cylinder 20 or even the hydraulic system from the hydraulic cylinder 20, converts, processes and outputs the data, so that the user can timely and clearly understand the operating status of the hydraulic cylinder 20 or even the hydraulic system.

[0040] In this way, through the specific structure and setting of the tower crane jacking hydraulic system test and detection system 10 provided by the present invention, the actual working scene of the tower crane is simulated, and the test and detection are carried out in a real test scene, so that the fault of the jacking hydraulic system can be discovered in advance, so that the tower crane jacking hydraulic system can be accurately tested and detected, and the probability of failure of the tower crane jacking hydraulic system after being installed on the tower crane is reduced, and the difficulty of designing, testing and maintaining the tower crane jacking hydraulic system is reduced, and the use cost is saved. At the same time, the tower crane jacking hydraulic system test and detection system 10 provided by the present invention can be installed with hydraulic cylinders of different types and sizes for test and detection. Compared with the prior art that a jacking hydraulic cylinder requires a corresponding and different test and detection equipment, the test and detection range of the hydraulic cylinder is expanded, so that the tower crane jacking hydraulic system test and detection system 10 provided by the present invention has great versatility, and truly realizes one machine with multiple uses.

[0041] Furthermore, if Figure 2 , Figure 4 and Figure 5 As shown, the first hinge seat 140 includes, for example, a first hinge ear 141 and a second hinge ear 142 that are arranged oppositely and at intervals. The first hinge ear 141 is provided with a first U-shaped hinge hole 1411, and the second hinge ear 142 is provided with a second U-shaped hinge hole 1421. The first connecting end 210 of the hydraulic cylinder 20 is located between the first hinge ear 141 and the second hinge ear 142, and is hinged to the first hinge seat 140 through the first U-shaped hinge 1411 and the second U-shaped hinge hole 1421. Specifically, a pin is provided on the first connecting end 210 of the hydraulic cylinder 20, and the pin is located in the first U-shaped hinge 1411 and the second U-shaped hinge hole 1421. Compared with the conventional design of a circular hinge hole in the prior art, the setting of such a U-shaped hinge hole is conducive to the installation and disassembly of the hydraulic cylinder 20, and improves the work efficiency.

[0042] Furthermore, if Figure 3 and Figure 6As shown, the sleeve frame 200 further includes, for example, a plurality of roller groups 260, which are respectively arranged on the sleeve frame. For example, roller groups 260 are arranged on the four sides of the sleeve frame 200 in the X and Y directions, and four roller groups 260 are arranged on each side. Each roller group 260, for example, includes a roller support 261 installed on the sleeve frame, and a roller 262 hinged on the roller support 261. The roller group 260 is, for example, arranged on each moving beam of the lower moving end 220 or the upper moving end 210, or arranged on a plurality of moving columns 230. The roller 262 is in rolling contact with the outer side surface of one of the plurality of fixed columns 130 of the fixed frame (131, 132, 133 or 134) perpendicular to the first direction (Z direction), so that the sleeve frame 200 reciprocates along the first direction (Z direction) relative to the fixed frame 100 through the roller 262. The setting of the roller can reduce the movement resistance of the sleeve frame 200 relative to the fixing frame 100 in the first direction (Z direction) reciprocating motion, so as to realize rolling relative motion between the two, improve the smoothness of relative motion, reduce power loss and save costs.

[0043] In addition, if Figure 7a , Figure 7b and Figure 7c As shown, a limiting device 300 is also provided on the sleeve frame. The limiting device 300, for example, includes: a rotating limiting plate 320 and a rotating limiting plate support plate 310. The rotating limiting plate support plate 310 is fixed to the sleeve frame 200, for example, by welding or threaded connection, such as on the moving beam of the lower moving end 220 of the sleeve frame 200. The rotating limiting plate 320 is provided with a first through hole 321, and the rotating limiting plate support plate 310 is provided with a pin shaft 311. The rotating limiting plate 320 and the rotating limiting plate support plate 310 are hingedly connected by the pin shaft 311 passing through the first through hole 321. A fixed limiting plate 150 is also provided on the fixed frame 100, and the fixed limiting plate 150 is arranged corresponding to the limiting device 300. As shown Figure 7b As shown, when the sleeve 200 moves upward along the first direction (Z direction) relative to the fixed frame 100, the fixed limit plate 150 drives the rotation limit plate 320 to rotate, for example, around the pin 311, so that the fixed limit plate 150 bypasses the rotation limit plate 320 and does not affect the upward movement of the sleeve 200. Figure 7cAs shown, when the sleeve 200 moves downward along the first direction (Z direction) relative to the fixed frame 100, the first limiting end 322 of the rotation limiting plate 320 away from the first through hole 321 abuts against the fixed limiting plate 150, and the second limiting end 323 of the rotation limiting plate 320 away from the first through hole 321 and opposite to the first limiting end 322 abuts against the sleeve 200, such as abutting against a moving beam of the lower moving end 220 of the sleeve 200, so that the fixed limiting plate 150 limits the downward movement of the sleeve 200. Due to the heavy weight of the entire equipment, when the pressure-maintaining performance of the hydraulic cylinder 20 is poor, the sleeve 200 may fall down automatically. The structural design of the present invention does not affect the hydraulic cylinder 20 driving the sleeve frame 200 to move upward, nor does it affect the test and inspection of the jacking hydraulic system and the hydraulic cylinder 20. When the pressure holding performance of the hydraulic cylinder 20 is poor and causes the sleeve frame 200 to fall automatically, the sleeve frame 200 can be limited to ensure the safety of the equipment and personnel, thereby improving the safety of the equipment.

[0044] Also, if Figure 2 As shown, the lower fixed end 120 is further provided with a third hinge seat 160 and a fourth hinge seat 170, and the third hinge seat 160 and the fourth hinge seat 170 are located on both sides of the first hinge seat 140, such as both sides in the X direction. Preferably, the structures of the third hinge seat 160 and the fourth hinge seat 170 may be the same as those of the first hinge seat 140. Figure 3 As shown, the sleeve frame 200 is also provided with a second hydraulic cylinder support beam 270, and the two ends of the second hydraulic cylinder support beam 270 are connected to the two movable columns 231 and 234 one by one, and are connected between the upper fixed end 110 and the first hydraulic cylinder support beam 240. The second hydraulic cylinder support beam 270 is provided with a fifth articulated seat 280 and a sixth articulated seat 290, and the fifth articulated seat 280 is provided corresponding to the third articulated seat 160, and the sixth articulated seat 290 is provided corresponding to the fourth articulated seat 170. The provision of the second hydraulic cylinder support beam 270, the fifth articulated seat 280 and the sixth articulated seat 290 enables the tower crane jacking hydraulic system test and detection system 10 to test and detect hydraulic cylinders of different strokes, further expanding the test and detection range of the hydraulic cylinders.

[0045] In other specific embodiments of the present invention, Figure 8 and Fig.10As shown, the sleeve 200 also includes a plurality of counterweight brackets 350, which are respectively arranged outside the sleeve 200 for placing counterweight blocks 60. Placing different numbers of counterweight blocks 60 each time can simulate the actual scene of tower cranes of different specifications, thereby improving the versatility of the equipment. Specifically, the plurality of counterweight brackets 350 are arranged in layers along the first direction (Z direction), and the counterweight brackets on each layer are arranged in pairs.

[0046] In other specific embodiments of the present invention, Fig. 9 and Fig.10 As shown, the tower crane jacking hydraulic system test and detection system 10 also includes a lifting device 180, which is installed on the upper fixed end 110 of the fixed frame 100, and is used to place the counterweight block 60 on the counterweight bracket 350 arranged in pairs or remove the counterweight block 60 from the counterweight bracket 350 arranged in pairs. Preferably, the lifting device can be, for example, a cantilever crane. In this way, when conducting tests and inspections, the existing fixed frame 100 can be used as a bracket of the lifting device 180, so as to realize the lifting and removal of the configuration, so that there is no need to set up an additional bracket of the counterweight lifting device, which saves costs and improves efficiency.

[0047] In addition, if Fig.11 As shown, the hydraulic system detection module 500 includes: a data acquisition and conversion unit 510, and a data processing and output unit 520. The data acquisition and conversion unit 510 is used to connect to the hydraulic cylinder 20 of the hydraulic system to be detected, and the data acquisition and conversion unit 510 is connected to the data processing and output unit 520 to collect the operating status data of the hydraulic cylinder 20 and even the hydraulic system from the hydraulic cylinder 20 and perform data conversion, and then send the converted data to the data processing and output unit 520. The data processing and output unit 520 is used to process and output the converted data for users or test detection personnel to perform corresponding processing.

[0048] Specifically, Fig.12As shown, the data acquisition and conversion unit 510 includes, for example, a hydraulic cylinder load detection subunit 511, a hydraulic cylinder stroke detection subunit 512, a pressure detection subunit 513, a flow detection subunit 514, an oil temperature detection subunit 515, a multiplexer 516, and an analog-to-digital converter 517. The multiplexer 516 is, for example, a multi-way selection switch, which inputs multiple channels of data and selects one of them to be turned on according to the setting. The analog-to-digital converter 517 is, for example, an electronic component having the function of converting analog data into digital data. The hydraulic cylinder load detection subunit 511 may, for example, include a force sensor to detect the lifting force of the hydraulic cylinder. The hydraulic cylinder stroke detection subunit 512 may, for example, include a displacement sensor to detect the stroke of the hydraulic cylinder. The pressure detection subunit 513 may, for example, include a pressure sensor to detect the oil pressure inside the hydraulic cylinder. The flow detection subunit 514 may, for example, include a flow sensor to detect the flow of the hydraulic cylinder. The oil temperature detection subunit 515 may, for example, include a temperature sensor to detect the oil temperature in the hydraulic cylinder or even the hydraulic system. The hydraulic cylinder load detection subunit 511, the hydraulic cylinder stroke detection subunit 512, the pressure detection subunit 513, the flow detection subunit 514, and the oil temperature detection subunit 515 are respectively connected to the hydraulic cylinder 20 to obtain corresponding data, and the data here is, for example, analog data. The hydraulic cylinder load detection subunit 511, the hydraulic cylinder stroke detection subunit 512, the pressure detection subunit 513, the flow detection subunit 514, and the oil temperature detection subunit 515 are also respectively connected to the multiplexer 516, for example, the data detected by the hydraulic cylinder load detection subunit 511, the hydraulic cylinder stroke detection subunit 512, the pressure detection subunit 513, the flow detection subunit 514, and the oil temperature detection subunit 515 are selectively transmitted to the analog-to-digital converter 517 in time periods for analog-to-digital conversion. Therefore, the pressure change in the hydraulic cylinder can be directly and in real time observed through the pressure sensor, and the flow change in the hydraulic cylinder during the lifting process can be directly and in real time observed through the flow sensor. The temperature change of the hydraulic oil in the lifting hydraulic system can be observed through the temperature sensor. The embodiment of the present invention can also detect the lifting force of the lifting hydraulic system, the lifting speed, the working efficiency of the oil cylinder, the working efficiency of the entire hydraulic system, etc. through the tower crane lifting hydraulic system test detection system. For a lifting hydraulic system equipped with multiple hydraulic cylinders, the synchronization performance of multiple hydraulic cylinders can also be detected, which will not be listed or elaborated here. The hydraulic system detection module 500 is connected to the hydraulic cylinder 20. Specifically, it can be a pressure detection subunit 513, a flow detection subunit 514, and an oil temperature detection subunit 515, which can be connected to the oil circuit of the hydraulic cylinder 20, and the hydraulic cylinder load detection subunit 511 and the hydraulic cylinder stroke detection subunit 512 are connected and set on the hydraulic cylinder 20.

[0049] In addition, the data acquisition and conversion unit 510 may, for example, use a commercially available DAM-E3058N data acquisition and conversion element to complete data acquisition and conversion. The data processing and output unit 520 may, for example, include a processor and a display connected to the processor, the processor being, for example, a single-chip microcomputer or an MCU, etc., for processing the data converted by the analog-to-digital converter 517, and then displaying it through the display for the user to perform corresponding processing. The data processing and output unit 520 is typically an industrial computer or a PC, etc.

[0050] It is worth mentioning here that three symmetrical articulated seats can also be provided on the seventh fixed beam on the lower fixed end 120 of the fixed frame 100, which is opposite to the fifth fixed beam on which the first articulated seat 140, the third articulated seat 160 and the fourth articulated seat 170 are provided. A first hydraulic cylinder support beam 240 and a second hydraulic cylinder support beam 270 are also provided on the side of the sleeve 200 opposite to the first hydraulic cylinder support beam 240 and the second hydraulic cylinder support beam 270, and three symmetrical articulated seats are also provided thereon. In this way, the tower crane jacking hydraulic system test and detection system 10 can simultaneously realize the test and detection of multiple pairs of hydraulic cylinders, thereby improving the test and detection efficiency and saving costs.

[0051] In summary, the embodiment of the present invention simulates the actual working scene of the tower crane through the specific structure and setting of the tower crane jacking hydraulic system test and detection system, and performs test and detection in a real test scene, so that the fault of the jacking hydraulic system can be discovered in advance, so that the tower crane jacking hydraulic system can be accurately tested and detected, and the probability of failure of the tower crane jacking hydraulic system after being installed on the tower crane is reduced, and the difficulty of design, test and maintenance of the tower crane jacking hydraulic system is reduced, and the use cost is saved. At the same time, the tower crane jacking hydraulic system test and detection system provided by the present invention can be installed with hydraulic cylinders of different types and sizes for test and detection. Compared with the prior art that a corresponding and different test and detection equipment is required for a jacking hydraulic cylinder, the test and detection range of the hydraulic cylinder is expanded, so that the tower crane jacking hydraulic system test and detection system provided by the present invention has great versatility, and truly realizes one machine for multiple uses. In addition, compared with the conventional design of the circular hinge hole in the prior art, the setting of the U-shaped hinge hole is conducive to the installation and disassembly of the hydraulic cylinder, and improves the work efficiency. In addition, the setting of the roller can reduce the movement resistance of the sleeve relative to the fixed frame in the first direction (Z direction), so that the rolling relative movement can be achieved between the two, which improves the smoothness of the relative movement, reduces the power loss, and saves costs. Furthermore, the coordinated setting of the limit device and the fixed limit plate does not affect the upward movement of the sleeve driven by the hydraulic cylinder, nor does it affect the test and detection of the lifting hydraulic system and the hydraulic cylinder. When the pressure holding performance of the hydraulic cylinder 20 is poor and the sleeve falls automatically, the sleeve can be limited to ensure the safety of equipment and personnel, and improve the safety of the equipment. In addition, the setting of the multi-articulated seat enables the tower crane lifting hydraulic system test and detection system to test and detect hydraulic cylinders of different strokes, further expanding the test and detection range of the hydraulic cylinder. The setting of the counterweight bracket can simulate the actual scenes of tower cranes of different specifications, thereby improving the versatility of the equipment. The setting of the lifting device can use the existing fixed frame as the bracket of the lifting device, so as to realize the lifting and removal of the configuration, so that there is no need to set up an additional bracket of the lifting device with a counterweight, which saves costs and improves efficiency. The hydraulic system detection module includes a data acquisition and conversion unit and a data processing and output unit, so that users can intuitively, directly and clearly understand the operating status of the hydraulic cylinder or even the jacking hydraulic system. Users can perform optimization operations such as troubleshooting and design improvement based on the displayed data, thus realizing digital test and detection.

[0052] In addition, it can be understood that the aforementioned embodiments are only exemplary descriptions of the present invention. Under the premise that the technical features do not conflict, the structures do not contradict, and the purpose of the present invention is not violated, the technical solutions of the various embodiments can be arbitrarily combined and used in combination.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A tower crane lifting hydraulic system test and detection system, It is characterized in that include: A fixing frame, comprising an upper fixing end, a lower fixing end and a plurality of fixing columns, wherein the upper fixing end and the lower fixing end are respectively connected to two ends of the plurality of fixing columns, and the lower fixing end is provided with a first articulated seat for connecting a first connecting end of a hydraulic cylinder of a hydraulic system to be tested; A sleeve frame, which is sleeved outside the fixed frame and can reciprocate relative to the fixed frame along a first direction of the fixed frame; the sleeve frame includes an upper movable end, a lower movable end and a plurality of movable columns, the upper movable end and the lower movable end are respectively connected to two ends of the plurality of movable columns, and a first hydraulic cylinder support beam is further provided on the sleeve frame, the two ends of the first hydraulic cylinder support beam are connected to two movable columns of the plurality of movable columns one by one, and are located at an end of the sleeve frame adjacent to the upper movable end; the first hydraulic cylinder support beam is provided with a second hinge seat for connecting a second connecting end of the hydraulic cylinder opposite to the first connecting end; and The sleeve frame further comprises a plurality of roller groups, which are respectively arranged on the sleeve frame; each of the roller groups comprises a roller support mounted on the sleeve frame and a roller hinged on the roller support, wherein the roller is in rolling contact with an outer side surface of one of the plurality of fixed columns of the fixed frame that is perpendicular to the first direction so that the sleeve frame reciprocates relative to the fixed frame along the first direction through the roller; The cam frame is provided with a limit stop device, the limit stop device comprising: a rotation limit plate and a rotation limit plate support plate, the rotation limit plate support plate is fixed to the cam frame, the rotation limit plate is provided with a first through hole, the rotation limit plate support plate is provided with a pin, the rotation limit plate and the rotation limit plate support plate are hinged through the pin and pass through the first through hole; the fixed frame is also provided with a fixed limit plate, the fixed limit plate corresponds to the limit device, when the cam frame moves upward relative to the fixed frame in the first direction, the fixed limit plate shifts the rotation limit plate to rotate so that the fixed limit plate bypasses the rotation limit plate; when the cam frame moves downward relative to the fixed frame in the first direction, the first limit end of the rotation limit plate away from the first through hole abuts against the fixed limit plate, and the second limit end of the rotation limit plate away from the first through hole and opposite to the first limit end abuts against the cam frame; The hydraulic system detection module is connected to the hydraulic cylinder to detect the operating status of the hydraulic system to be detected.

2. The tower crane lifting hydraulic system test and detection system according to claim 1, It is characterized in that The first articulated seat includes a first articulated ear and a second articulated ear which are arranged opposite to and at intervals, the first articulated ear is provided with a first U-shaped articulated hole, and the second articulated ear is provided with a second U-shaped articulated hole; the first connecting end of the hydraulic cylinder is located between the first articulated ear and the second articulated ear and is articulated with the first articulated seat through the first U-shaped articulated hole and the second U-shaped articulated hole.

3. The tower crane jacking hydraulic system test and detection system according to claim 1, It is characterized in that A third hinge seat and a fourth hinge seat are also provided on the lower fixed end, and the third hinge seat and the fourth hinge seat are located on both sides of the first hinge seat; A second hydraulic cylinder support beam is also provided on the sleeve frame, and both ends of the second hydraulic cylinder support beam are connected to the two movable columns one by one, and are connected between the upper fixed end and the first hydraulic cylinder support beam; a fifth articulated seat and a sixth articulated seat are provided on the second hydraulic cylinder support beam, and the fifth articulated seat is arranged corresponding to the third articulated seat, and the sixth articulated seat is arranged corresponding to the fourth articulated seat.

4. The tower crane jacking hydraulic system test and detection system according to claim 1, It is characterized in that The sleeve frame also includes a plurality of counterweight brackets, which are respectively arranged outside the sleeve frame for placing counterweight blocks.

5. The tower crane jacking hydraulic system test and detection system according to claim 4, It is characterized in that The plurality of counterweight supports are arranged in layers along the first direction, and the counterweight supports on each layer are arranged in pairs.

6. The tower crane jacking hydraulic system test and detection system according to claim 5, It is characterized in that It also includes a lifting device installed on the upper fixed end of the fixed frame, so as to place the counterweight block on the counterweight brackets arranged in pairs or remove the counterweight block from the counterweight brackets arranged in pairs.

7. The tower crane jacking hydraulic system test and detection system according to any one of claims 1 to 6, It is characterized in that The hydraulic system detection module includes: a data acquisition and conversion unit and a data processing and output unit; the data acquisition and conversion unit is used to connect to the hydraulic cylinder of the hydraulic system to be detected, and the data acquisition and conversion unit is connected to the data processing and output unit.

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