Length-adjustable test platform

Abstract

The invention discloses a length-adjustable test platform, which comprises a supporting box body, and the supporting box body comprises a first main body component, a second main body component, a transverse moving device, a plurality of chain plate guide rails, a telescopic table top and two telescopic devices which are arranged in parallel; the transverse moving device is positioned at the bottom of the first main body component, so that the first main body component can transversely move on the track; the telescopic table top comprises a plurality of chain plate devices, each chain plate device comprises a chain plate, chain links are arranged at the two ends of each chain plate, pin shafts and pin holes are correspondingly formed in the two sides of each chain link respectively, and the pin shafts are inserted into the pin holes of the adjacent chain links, so that the connected chain plate devices form the telescopic table top. The two telescopic devices are located in the first main body component and the second main body component respectively, and the upper ends of the telescopic devices are connected with the chain plate devices at the two ends of the telescopic table top and used for driving the chain plate devices to move so that the telescopic table top can be switched between the contracted state and the unfolded state. According to the test platform, the length of the test platform can be conveniently and quickly adjusted.

Description

Technical Field

[0001] The present application relates to the field of testing technology, and in particular to a testing platform capable of adjusting its length. Background Art

[0002] Testing the static or dynamic balance of a machine or structural component typically requires a test platform. Because the type, specifications, and dimensions of the machine or structural component being tested vary, the length and height of the support platform often need to be adjusted.

[0003] The dimensions of existing test platforms are typically determined during the assembly phase, requiring manual disassembly and assembly to adjust height or length, which is time-consuming and labor-intensive. Furthermore, when idle, the platform takes up a large amount of space, making access difficult, disrupting other normal tasks and making it difficult to meet the demands of flexible and ever-changing work. Summary of the Invention

[0004] In order to solve the above technical problems, an object of the present invention is to provide a test platform with adjustable length.

[0005] The technical solutions provided by the present invention are as follows: A test platform capable of adjusting its length comprises a support box, wherein the support box comprises a first main component, a second main component, a lateral movement device, a plurality of chain plate guide rails, a telescopic table, and two telescopic devices arranged in parallel; the lateral movement device is located at the bottom of the first main component, so that the first main component can move laterally on the rails; the telescopic table comprises a multi-section chain plate device, each section of the chain plate device comprises a chain plate, and chain links are provided at both ends of the chain plate, and pin shafts and pin holes are respectively provided on both sides of each chain link, and the pin shafts are inserted into the pin holes of adjacent chain links, so that the connected chain plate devices form a telescopic table; the two telescopic devices are respectively located in the first main component and the second main component, and the upper ends are connected to the chain plate devices at both ends of the telescopic table. , used to drive the chain plate device to move so that the telescopic table can switch between the retracted and extended states; when the test platform is in the retracted state, the first main body component and the second main body component are close to each other, and the telescopic device is retracted so that multiple chain plate devices are located inside the first main body component and the second main body component; when extended, the lateral moving device drives the first main body component to move in the direction away from the second main body component, and at the same time, the two telescopic devices push the chain plate device to make each chain plate device extend upward until the extended length of the chain plate device meets the platform size requirements; when retracted again, the lateral moving device drives the first main body component to move in the direction close to the second main body component, and at the same time, the two telescopic devices pull back the chain plate device to make each chain plate device retract downward.

[0006] Preferably, each of the telescopic devices includes a telescopic device motor, a telescopic device reducer, a telescopic device screw rod, and a telescopic device sleeve. The telescopic device motor is connected to the telescopic device screw rod through the telescopic device reducer. The telescopic device sleeve is located at the top of the telescopic device screw rod and is connected to the chain plate device, so that the telescopic device motor drives the telescopic device screw rod to rotate through the telescopic device reducer, and then drives the telescopic device sleeve to move up and down, thereby realizing the expansion or contraction of the telescopic table.

[0007] Preferably, a chain roller is provided at the outer end of each pin shaft, and the test platform is provided with two chain guide rails at both ends of each telescopic table, respectively, for accommodating the chain rollers on the chain devices at the ends of the corresponding telescopic tables, and guiding the chain rollers so that each chain device can be extended or retracted along the chain guide rails.

[0008] Preferably, a positioning rod is provided between the telescopic device sleeve and the chain plate device, a through hole is provided in the middle of the positioning rod for the telescopic device sleeve to be inserted and fixed, and positioning rollers are installed at both ends. The positioning rollers are accommodated in the chain plate guide rail, so that the telescopic device sleeve and the chain plate device are connected through the positioning rod.

[0009] Preferably, the lateral movement device is a driving trolley, including a trolley motor, a trolley reducer, a trolley support frame, and wheels. The wheels are rotatably connected to the trolley support frame through the wheel axle thereon. The trolley support frame is fixed to the first main body component. The trolley motor is connected to the wheel axle through the trolley reducer, so that the trolley motor drives the wheel to rotate through the trolley reducer and the wheel axle, thereby realizing lateral movement of the first main body component.

[0010] Preferably, a height adjustment device is connected below the telescopic device to drive the telescopic device to move up and down to adjust the height of the telescopic table top.

[0011] Preferably, the height adjustment device includes a connecting mechanism and a jacking mechanism. The jacking mechanism includes a jacking device motor, a dual-axis reducer, two jacking device screw rods, and two jacking device sleeves. The corresponding jacking device screw rods and the telescopic device are connected to the connecting mechanism. The jacking device sleeves are respectively fixed to the first main body component and the second main body component. The jacking device motor is respectively connected to the two jacking device screw rods through the dual-axis reducer, so that the jacking device motor drives the jacking device screw rod to rotate through the dual-axis reducer, and then drives the connecting mechanism to move up and down, and the height of the telescopic table is adjusted through the telescopic device.

[0012] Preferably, the connecting mechanism includes a horizontal connecting plate and two vertical connecting plates, the lifting device screw and the telescopic device are both connected to the horizontal connecting plate, the two vertical connecting plates are located on both sides of the horizontal connecting plate, and each vertical connecting plate is provided with an upright track bar on the outside, which is used to cooperate with the guide member fixed on the first main body component or the second main body component, and the connecting mechanism is guided to move up and down along the first main body component or the second main body component through the cooperation between the guide member and the track bar.

[0013] Preferably, the support box includes two first telescopic tables and one second telescopic table side by side, the second telescopic table is located between the two first telescopic tables, and two first telescopic devices and two second telescopic devices are respectively provided corresponding to each first telescopic table and second telescopic table. The two first telescopic devices are respectively installed on the first main body component and the second main body component, and a height adjustment device is connected underneath the two second telescopic devices.

[0014] Preferably, the test platform includes two support boxes arranged side by side and adjacent to each other, namely a first support box and a second support box; the first support box includes a first main body component and a second main body component arranged side by side, and two first telescopic tables and one second telescopic table arranged side by side, the second telescopic table is located between the two first telescopic tables, and two first telescopic devices and two second telescopic devices are respectively provided corresponding to each first telescopic table and the second telescopic table, the two first telescopic devices are respectively installed on the first main body component and the second main body component, and a height adjustment device is connected below the two second telescopic devices; the second support box includes two third main body components and two third telescopic tables arranged side by side, two third telescopic devices are provided corresponding to each third telescopic table, and the two third telescopic devices are respectively installed on the third main body component and the fourth main body component.

[0015] Compared with the existing technology, the length-adjustable test platform of the present invention is equipped with a lateral moving device, multiple chain plate guide rails, a telescopic table, and two telescopic devices. The chain plate devices at both ends of the telescopic table are connected by the two telescopic devices to drive the chain plate devices to move, so that the telescopic table can switch between the retracted and expanded states, thereby realizing the convenient and quick adjustment of the length of the test platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1This is a schematic structural diagram of a length-adjustable test platform according to an embodiment of the present invention; Figure 2 for Figure 1 A schematic structural diagram of the test platform in which the first supporting box is in an expanded state; Figure 3 for Figure 2 A schematic structural diagram of the first main body component in the first supporting box; Figure 4 for Figure 2 A schematic structural diagram of the chain plate device in the first supporting box is shown; Figure 5 for Figure 2 The schematic structural diagram of the chain plate guide rail in the first supporting box is shown; Figure 6 for Figure 2 A schematic structural diagram of the telescopic device in the first supporting box is shown; Figure 7 for Figure 2 A schematic structural diagram of the positioning rod in the first supporting box is shown; Figure 8 for Figure 2 A schematic structural diagram of the jacking device, the connecting mechanism and the adjacent structure in the first supporting box; Figure 9 for Figure 8 A schematic structural diagram of the jacking device, connecting mechanism and adjacent structures from another angle; Figure 10 for Figure 2 A schematic structural diagram of the jacking device in the first supporting box is shown; Figure 11 for Figure 2 A schematic structural diagram of the connecting mechanism in the first supporting box is shown; Figure 12 for Figure 2 A schematic structural diagram of the lateral moving device in the first supporting box is shown; Figure 13 for Figure 2 A schematic structural diagram of the anti-overturning device in the first supporting box is shown; Figure 14 for Figure 1 A schematic structural diagram of the second support box in the test platform shown; Figure 15 for Figure 14 A schematic structural diagram of the third main body component in the second supporting box is shown; Figure 16 for Figure 14 A schematic structural diagram of the second telescopic device in the second supporting box is shown; Figure 17 for Figure 14A schematic structural diagram of the second lateral moving device in the second supporting box is shown; Figure 18 for Figure 1 A schematic structural diagram of the first supporting box in the test platform shown in the initial state.

[0018] In the figure, 1, the first supporting box, 101, the first main component, 101-1, the middle supporting channel steel, 101-2, the top supporting channel steel, 101-3, the connecting channel steel, 101-4, the supporting I-beam, 101-5, the bottom pad, 102, the second main component, 103, the bottom fixing plate, 104, the first transverse moving device, 104-1, the trolley motor, 104-2, the trolley reducer, 104-3, the fastening plate, 104-4, the trolley supporting frame, 104-5, the wheel, 105, the guide member, 106, the chain plate guide rail, 107, the first positioning rod, 107-1, the through hole, 109, the chain plate device, 109-1, the chain plate, 109-2, the chain link, 109-3, the pin shaft, 109-4, the chain plate Roller, 109-5, pin hole, 110, anti-slip protection steel plate, 111, control device, 112, lifting device, 112-1, lifting device motor, 112-2, dual-axis reducer, 112-3, lifting device screw, 112-4, lifting device sleeve, 113, connecting mechanism, 113-1, horizontal connecting plate, 113-2, vertical connecting plate, 113-3, track bar, 114, first telescopic device, 114-1, telescopic device motor, 114-2, telescopic device reducer, 114-3, telescopic device screw, 114-4, telescopic device sleeve, 115, anti-overturning device, 115-1, anti-overturning frame, 115-2, reinforcing ribs, 115-3, anti-overturning device wheel, 116, locking device, 2- Second supporting box, 201, third main component, 201-1, I-beam, 201-2, bottom supporting channel steel, 201-3, top supporting I-beam, 201-4, pad, 202, third telescopic device, 202-1, third telescopic device motor, 202-2, third telescopic device reducer, 202-3, third telescopic device screw, 202-4, third telescopic device sleeve, 205, second lateral moving device, 205-1, second trolley motor, 205-2, second trolley reducer, 205-3, second trolley main frame, 205-4, second trolley fastening plate, 205-5, second trolley wheel, 206, second positioning rod, 207, cover plate, 3-Track DETAILED DESCRIPTION In order to help those skilled in the art better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative efforts shall fall within the scope of protection of this application.

[0019] It should be noted that when an element is referred to as being “fixed on” or “set on” another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being “connected to” another element, it can be directly connected to the other element or indirectly connected to the other element.

[0020] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply 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 this application.

[0021] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Throughout the description of this application, "plurality" or "several" means two or more, unless otherwise specifically defined.

[0022] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the efficacy and purpose that can be achieved by this application.

[0023] like Figure 1As shown, an embodiment of the present invention provides a test platform comprising a first support box 1 and a second support box 2. The first support box 1 and the second support box 2 can be used individually or in combination. During normal operation, only the first support box 1 (also referred to as the "primary support box") is typically used. However, in certain special operating conditions, the second support box 2 (also referred to as the "secondary support box") is required to perform specific functions, such as extending the support box to accommodate test equipment and conducting tests on the second support box 2. Both the first support box 1 and the second support box 2 are placed on rails 3.

[0024] like Figures 2 to 13 As shown, in this embodiment, the first supporting box 1 mainly includes a first main body component 101, a second main body component 102, a first transverse moving device 104, a plurality of chain plate guide rails 106, three telescopic tables, and a plurality of telescopic devices arranged in parallel.

[0025] like Figure 2 、 Figure 3 As shown, in this embodiment, the first main member 101 comprises a central support channel 101-1, a top support channel 101-2, a connecting channel 101-3, a supporting I-beam 101-4, a bottom spacer 101-5, a bottom fixing plate 103, and an anti-slip protection steel plate 110. The first main member 101 comprises four supporting I-beams 101-4, arranged to form three frames. The center frame is smaller than the two side frames, and the two side frames are of equal length. A bottom fixing plate 103 is fixed to the bottom of the center frame, and anti-slip protection steel plates 110 are fixed to the tops of all frames. The connecting channel 101-3 connects the two center supporting I-beams 101-4. The bottom spacer 101-5 is welded to the supporting I-beams 101-4 and bolted to the bottom plate below it. The bottom plate is used to mate with the track. The second main member 102 has the same shape and structure as the first main member 101. The two are arranged opposite each other, forming three corresponding frames to mate with the three retractable platforms. For the convenience of description, the telescopic table tops on both sides are named as the first telescopic table top, and the telescopic table top in the middle is named as the second telescopic table top.

[0026] like Figure 4As shown, in this embodiment, each first telescopic platform includes a multi-section chain assembly 109. Each chain assembly 109 includes a chain plate 109-1, a chain link 109-2, a pin 109-3, and a chain roller 109-4. Chain plate 109-1 and chain link 109-2 are connected by welding. Chain roller 109-4 and pin 109-3 are located on one side of chain link 109-2. Chain link 109-2 and chain roller 109-4 are connected by pin 109-3. A pin hole 109-5 is provided on the other side of chain link 109-2. Chain roller 109-4 is supported by chain guide rails 106. Chain link 109-2 is fixed to the top support channel steel 101-2. Each chain plate assembly 109 is connected by a pin hole 109-5 of a chain link 109-2 to the pin of the chain link 109-2 of an adjacent chain plate assembly. The chain plate assembly 109 is flattened by the telescopic assembly to form a platform. The structure of the second telescopic platform is basically the same as the first telescopic platform, but it is smaller in size, so it will not be described here.

[0027] like Figure 5 As shown, in this embodiment, two chain plate guide rails 106 are provided at each end of each telescopic table to accommodate and guide the chain plate rollers 109-4 on the chain plate device 109 at the end of the corresponding telescopic table. The chain plate guide rails 106 corresponding to the first telescopic table are fixed to the first main body member 101 and the second main body member 102.

[0028] like Figure 2 、 Figure 6 As shown, in this embodiment, each telescopic table is connected to a telescopic device at both ends. The first telescopic table corresponds to the first telescopic device 114, and the second telescopic device corresponds to the second telescopic table (not numbered). Each first telescopic device 114 includes a telescopic device motor 114-1 (preferably a servo motor), a telescopic device reducer 114-2 (preferably a planetary reducer), a telescopic device screw 114-3 (the screw is a trapezoidal screw with a self-locking function), and a telescopic device sleeve 114-4. The telescopic device motor 114-1 is connected to the telescopic device screw 114-3 via the telescopic device reducer 114-2. The telescopic device sleeve 114-4 is located at the top of the telescopic device screw 114-3 and is connected to the chain plate device 109. The telescopic device motor 114-1 drives the telescopic device screw 114-3 to rotate through the telescopic device reducer 114-2, thereby driving the telescopic device sleeve 114-4 to move up and down, thereby achieving the expansion or contraction of the telescopic table. The structure of the second telescopic device is the same as that of the first telescopic device 114 and will not be described in detail here.

[0029] like Figure 7As shown, in this embodiment, a first positioning rod 107 is disposed between the telescopic mechanism sleeve 114-4 and the chain assembly 109. A through-hole 107-1 is provided in the center of the first positioning rod 107 for insertion and fixation of the telescopic mechanism sleeve 114-4. Positioning rollers (not shown) are mounted on both ends of the first positioning rod 107. These rollers are received in the chain guide rail 106, guiding the vertical movement of the first positioning rod 107. The telescopic mechanism sleeve 114-4 is connected to the chain assembly 109 via the first positioning rod 107. The use of the first positioning rod 107 simplifies the structure of the chain assembly 109.

[0030] In the telescopic device corresponding to the first telescopic table, the telescopic device motor 114 - 1 and the telescopic device reducer 114 - 2 are fixed to the first main body component 101 and the second main body component 102 . The telescopic device shaft sleeve 114 - 4 is positioned and matched with the middle through hole of the first positioning rod 107 .

[0031] like Figures 8 to 11 As shown, in this embodiment, a height adjustment device is connected below the telescopic device of the second telescopic table to drive the telescopic device to move up and down to adjust the height of the telescopic table. The height adjustment device includes a connecting mechanism 113 and a lifting device 112.

[0032] like Figure 10 As shown, in this embodiment, the lifting device 112 includes a lifting device motor 112-1, a dual-axis reducer 112-2, two lifting device screws 112-3, and two lifting device sleeves 112-4. The lifting device screws 112-3 are all placed on the connecting mechanism 113, are of the same length, and are located on either side of the dual-axis reducer 112-2. The lifting device sleeves 112-4 are connected to the bottom fixing plate 103 via bolts.

[0033] like Figure 11 As shown, in this embodiment, the connecting mechanism 113 is a concave steel structure, including a horizontal connecting plate 113-1 and two vertical connecting plates 113-2. The lifting device screw rod 112-3 and the first telescopic device 114 or the second telescopic device are all connected to the horizontal connecting plate 113-1. The two vertical connecting plates 113-2 are located on both sides of the horizontal connecting plate 113-1. The outer side of each vertical connecting plate 113-2 is provided with an upright track bar 113-3, which is used to cooperate with the guide member 105 fixed to the first main member or the second main member. The guide member 105 cooperates with the track bar 113-3 to guide the connecting mechanism to move up and down along the first main member or the second main member. A chain plate guide 106 is welded to the inner side of each vertical connecting plate 113-2.

[0034] like Figure 12As shown, in this embodiment, the first transverse motion device 104 is a driving trolley and includes a trolley motor 104-1, a trolley reducer 104-2 (preferably a planetary reducer), a fastening plate 104-3, a trolley support frame 104-4, and wheels 104-5. The trolley motor 104-1 and trolley reducer 104-2 are connected to the trolley 104-4 and the trolley support frame 104-5 via shafts. The fastening plate 104-3 has a through hole that mates with the trolley support frame 104-5. The fastening plate 104-3 is bolted to the central support channel steel 101-1 (each central support channel steel 101-1 of the first main body member 101 is connected to a first transverse motion device 104). The trolley motor 104 - 1 is connected to the wheel shaft through the trolley reducer 104 - 2 , so that the trolley motor 104 - 1 drives the wheel 104 - 5 to rotate through the trolley reducer 104 - 2 and the wheel shaft, thereby realizing the lateral movement of the first main body component 101 .

[0035] like Figure 13 As shown, in this embodiment, the first support box 1 is further provided with an anti-overturning device 115. The anti-overturning device 115 comprises an anti-overturning frame 115-1, reinforcement ribs 115-2, and anti-overturning device wheels 115-3. The anti-overturning frame 115-1 is connected to the reinforcement ribs 115-2 by welding and to the anti-overturning device wheels 115-3 by an axle. The top of the anti-overturning frame 115-1 is also welded to the middle support channel steel 101-1.

[0036] One end of the first main member 101 is fixed to the track by an anchor bolt, and the other end moves on the track with a locking device 116 and is fixed to the track by the locking device 116. In the middle of the first main member 101, the middle support channel steel 101-1 and the connecting channel steel 101-3 serve as the support components of the platform. The jacking device 112 is connected to the bottom fixing plate 103 by bolts. The first lateral movement device 104 is fixed to the bottom of the first main member 101. The anti-overturning device 115 is connected to the bottom of the support steel plate 101-1 by welding. Chain plate guides 106 are welded to the inner side of the frame on both sides of the first main member 101 and the inner side of the vertical connecting plate, and the guide member 105 is welded to the outer side of the middle frame of the first main member 101. The top of the first main member 101 is connected to the anti-slip protection steel plate 110 by welding. The control device 111 is fixed to the support steel plate 101-1 by bolt connection.

[0037] like Figures 14 to 17As shown, in this embodiment, the second supporting box 2 includes two third main members 201 arranged in parallel, a second lateral movement device 205, and two third telescopic platforms arranged side by side. Two third telescopic devices 202 are provided for each third telescopic platform, and the two third telescopic devices 202 are respectively mounted on the two third main members 201. The structure of the third telescopic platform is identical to that of the first telescopic platform, except for the width, so it will not be described again. Other identical parts will not be repeated.

[0038] like Figure 15 As shown, in this embodiment, the third main member 201 primarily comprises an I-beam 201-1, a bottom support channel 201-2, a top support I-beam 201-3, and a spacer 201-4. The I-beam 201-1 is welded together with the bottom support channel 201-2 and the top support I-beam 201-3. The spacer 201-4 is secured to the bottom support channel 201-1 via bolts.

[0039] like Figure 16 As shown, in this embodiment, the third telescopic device 202 includes a third telescopic device motor 202-1, a third telescopic device reducer 202-2, two third telescopic device screw rods 202-3, and two third telescopic device sleeves 202-4. The third telescopic device screw rods 202-3 are placed on the spacer 201-4, maintaining the same height as the third telescopic device reducer 202-2. The third telescopic device sleeve 202-4 engages with the central through hole of the second positioning rod 206.

[0040] like Figure 17 As shown, in this embodiment, the second lateral movement device 205 is also a driving trolley structure, including a second trolley motor 205-1, a second trolley reducer 205-2, a second trolley main frame 205-3, a second trolley fastening plate 205-4, and a second trolley wheel 205-5. The second trolley wheel 205-5 is connected to the second trolley main frame 205-3 via a wheel axle. The second trolley fastening plate 205-4 is connected to the bottom support channel steel 201-2 via bolts.

[0041] The ends of the third main component 201 are fixed to the floor by a locking device through anchor bolts. The anti-overturning trolley 203 is connected to the bottom support channel steel 201-2 by welding. The second lateral moving device 205 cooperates with the bottom support channel steel 201-2 through the fastening plate 205-3. The third telescopic device 202 is placed on the pad 201-4. The electric control box 204 is placed in the I-beam 201-2 by welding. In the third main component 201, a chain plate guide is welded to the inner side of the I-beam 201-1, and a cover plate 207 is welded to the top. The second positioning rod 206 is fixed with the sleeve 202-4 to connect the third telescopic device and the third telescopic table.

[0042] The working mode of the test platform of this embodiment is: taking the first support box 1 as an example, the first horizontal moving device 104 drives the main support box to move in the horizontal direction, extends the chain plate device 109, and changes the platform length; at the same time, the jacking device 112 is lifted by the screw rod to realize the movement of the chain plate device 109 in the vertical direction, thereby changing the platform height.

[0043] When the test platform is in use, first loosen the anchor bolts in the locking device 116 with a wrench to make one end of the first support box 1 movable. Figure 18 As shown, in the initial state, all the chain plates 109-1 of the chain plate device 109 are hidden in the first main body component 101, and the chain plate roller 109-4 is located in the chain plate guide rail 106. The platform in the first support box 1 is divided into three parts. The chain plate devices 109 on the left and right sides have the same width and height, and the height is fixed and cannot be adjusted. The width of the middle chain plate device 109 is smaller than the two sides, but the height can be adjusted according to the jacking device 112. The jacking device 112 controls the jacking device screw rod 112-3 to adjust the position in the height direction through the jacking device motor 112-1, and the jacking device screw rod 112-3 drives the connecting mechanism 113 to move in the first main body component 101 until the required height dimension of the middle chain plate is reached. After the height dimension is determined, the chain plate device needs to be extended to build a platform of the required length dimension.

[0044] The specific process of unfolding the chain plate device 109 to build a platform: in the initial state, the chain plate device is hidden between the first main body components 101. As the first transverse moving device 104 moves horizontally in the bottom plate track, the telescopic device screw rod 114-3 in the jacking device rotates to drive the chain plate roller 109-4 in the chain plate device to move upward along the chain plate guide rail 106. When the chain plate device 109 reaches the top, it moves horizontally along the chain plate guide rail 106. The rear part of the chain link 109-2 of the previous chain plate device 109 and the front part of the chain link 109-2 of the next chain plate device 109 are fixed by the pin shaft 109-3. Each chain plate device 109 is matched as described above. Top support channel steel 101-2 is welded in the first main body components 101 at both ends to support the chain plate device 109 at the end of the platform. Each chain plate device 109 in the middle of the platform is tensioned by the matched pin shaft 109-3 to ensure the flatness and load-bearing capacity of the platform. When the platform shrinks, the chain plate device 109 slides to both sides of the box. Since each chain link 109-2 is connected by the pin shaft 109-3, the chain link 109-2 can rotate around the pin shaft and move to both sides of the box to realize the recovery function. The first transverse moving device 104 changes the height of the fastening plate 104-3 by adjusting the disc spring in the trolley support frame 104-4, so that the fastening plate 104-3 fits with the middle support channel steel 101-1, and then reinforced with bolts. The electrical control box 204 controls the first transverse moving device 104 to move horizontally in the bottom plate track, and at the same time, the telescopic device screw rod 114-3 drags the chain plate device 109 from the first main body components 101 on both sides to the middle at the same time, until the extended length of the chain plate device 109 meets the platform size requirements (such as Figure 2 After the platform is built, tighten the anchor bolts of the locking device 116 to fix the first support box 1 to the bottom plate. The anti-overturning device 115 supports the middle support channel steel 101-1 to prevent the first support box 1 from tilting and collapsing.

[0045] Similarly, the deployment method for the second support box 2 is similar to that for the first support box 1. When a specific operating condition requires the use of the second support box 2, the first support box 1 is first extended. After extension is complete, the position is confirmed, and the locking device 116 of the first support box 1 is locked. After the second support box is moved to the desired position via the baseplate track, the outer side of the I-beam 201-1 on the third main body member 201 is welded with a pivot bolt, connecting it to the first support box 1, and then the second support box is deployed. Similar to the first support box 1, the platform of the second support box 2 consists of two parts, both of the same height and cannot be adjusted. The platform length can only be adjusted horizontally by lifting the chain plate assembly using the second support box lifting device. The box lifting device can simultaneously lift the chain plate assembly on both sides, allowing the platforms on both sides of the second support box to deploy simultaneously. The second lateral movement device 205 drives the third main body member 201 on one side of the second support box along the track. Driven by the lifting device, the chain plate assembly hidden in the box frame on both sides simultaneously moves toward the center until the platform is built to the desired size. After the platform is built, tighten the anchor bolts of the locking device to fix the second support box platform. The anti-overturning device supports the bottom support channel steel 201-2 to prevent the second support box 2 from tilting and collapsing.

[0046] The overall expansion and contraction of the test platform can be controlled through a visual panel in the control cabinet, which controls the movement of the servo motor to achieve the specific required expansion height and width of the platform.

[0047] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A test platform capable of adjusting length, characterized in that: The support box comprises a first main body component, a second main body component, a transverse moving device, a plurality of chain plate guide rails, a telescopic table, and two telescopic devices arranged in parallel; the transverse moving device is located at the bottom of the first main body component, so that the first main body component can move transversely on the rails; the telescopic table comprises a multi-section chain plate device, each chain plate device comprises a chain plate, and chain links are provided at both ends of the chain plate, and pins and pin holes are provided on both sides of each chain link, and the pins are inserted into the pin holes of adjacent chain links, so that the connected chain plate devices form a telescopic table; the two telescopic devices are respectively located in the first main body component and the second main body component, and the upper ends are connected to the chain plate devices at both ends of the telescopic table to drive the chain plate devices to move, so that the telescopic table can switch between a retracted state and an expanded state; When the test platform is in a retracted state, the first main body component and the second main body component are close to each other, and the telescopic device is retracted so that the multiple chain plate devices are located inside the first main body component and the second main body component; when expanded, the lateral moving device drives the first main body component to move in the direction away from the second main body component, and at the same time, the two telescopic devices push the chain plate devices to extend each chain plate device upward until the extended length of the chain plate device meets the platform size requirements; when retracted again, the lateral moving device drives the first main body component to move in the direction close to the second main body component, and at the same time, the two telescopic devices pull back the chain plate devices to retract each chain plate device downward.

2. The length-adjustable test platform according to claim 1, wherein: Each of the telescopic devices includes a telescopic device motor, a telescopic device reducer, a telescopic device screw rod, and a telescopic device sleeve. The telescopic device motor is connected to the telescopic device screw rod through the telescopic device reducer. The telescopic device sleeve is located at the top of the telescopic device screw rod and is connected to the chain plate device, so that the telescopic device motor drives the telescopic device screw rod to rotate through the telescopic device reducer, and then drives the telescopic device sleeve to move up and down, thereby realizing the expansion or contraction of the telescopic table.

3. The length-adjustable test platform according to claim 2, wherein: A chain roller is provided at the outer end of each pin shaft, and the test platform is provided with two chain guide rails at both ends of each telescopic table, which are used to accommodate the chain rollers on the chain devices at the ends of the corresponding telescopic tables, and guide the chain rollers so that each chain device can be extended or retracted along the chain guide rails.

4. The length-adjustable test platform according to claim 3, wherein: A positioning rod is provided between the telescopic device sleeve and the chain plate device. A through hole is provided in the middle of the positioning rod for the telescopic device sleeve to be inserted and fixed. Positioning rollers are installed at both ends. The positioning rollers are accommodated in the chain plate guide rail, so that the telescopic device sleeve and the chain plate device are connected through the positioning rod.

5. The length-adjustable test platform according to claim 1, wherein: The lateral movement device is used to drive the trolley, including a trolley motor, a trolley reducer, a trolley support frame, and wheels. The wheels are rotatably connected to the trolley support frame through the wheel axle thereon. The trolley support frame is fixed to the first main body component. The trolley motor is connected to the wheel axle through the trolley reducer, so that the trolley motor drives the wheel to rotate through the trolley reducer and the wheel axle, thereby realizing lateral movement of the first main body component.

6. The length-adjustable test platform according to claim 1, wherein: A height adjustment device is connected below the telescopic device to drive the telescopic device to move up and down to adjust the height of the telescopic table.

7. The length-adjustable test platform according to claim 6, wherein: The height adjustment device includes a connecting mechanism and a jacking mechanism. The jacking mechanism includes a jacking device motor, a dual-axis reducer, two jacking device screw rods, and two jacking device sleeves. The corresponding jacking device screw rods and the telescopic device are both connected to the connecting mechanism. The jacking device sleeves are respectively fixed to the first main body component and the second main body component. The jacking device motor is respectively connected to the two jacking device screw rods through the dual-axis reducer, so that the jacking device motor drives the jacking device screw rods to rotate through the dual-axis reducer, and then drives the connecting mechanism to move up and down, and the height of the telescopic table is adjusted through the telescopic device.

8. The length-adjustable test platform according to claim 7, wherein: The connecting mechanism includes a horizontal connecting plate and two vertical connecting plates. The lifting device screw and the telescopic device are both connected to the horizontal connecting plate. The two vertical connecting plates are located on both sides of the horizontal connecting plate. An upright track bar is provided on the outer side of each vertical connecting plate, which is used to cooperate with a guide member fixed on the first main body component or the second main body component. The connecting mechanism is guided to move up and down along the first main body component or the second main body component through the cooperation between the guide member and the track bar.

9. The length-adjustable testing platform according to claim 6, 7 or 8, characterized in that: The supporting box includes two first telescopic tables and a second telescopic table side by side. The second telescopic table is located between the two first telescopic tables. Two first telescopic devices and two second telescopic devices are respectively provided corresponding to each first telescopic table and second telescopic table. The two first telescopic devices are respectively installed on the first main body component and the second main body component. A height adjustment device is connected underneath the two second telescopic devices.

10. The length-adjustable testing platform according to claim 6, 7 or 8, characterized in that: The test platform includes two support boxes arranged adjacent to each other in parallel, namely the first support box and the second support box; the first support box includes a first main body component and a second main body component arranged side by side, and two first telescopic tables and one second telescopic table arranged side by side, the second telescopic table is located between the two first telescopic tables, and two first telescopic devices and two second telescopic devices are respectively provided corresponding to each first telescopic table and the second telescopic table, the two first telescopic devices are respectively installed on the first main body component and the second main body component, and a height adjustment device is connected below the two second telescopic devices; the second support box includes two third main body components and two third telescopic tables arranged side by side, two third telescopic devices are provided corresponding to each third telescopic table, and the two third telescopic devices are respectively installed on the third main body component and the fourth main body component.

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