A crane track elevation detection tool

Abstract

The utility model belongs to crane track installation engineering precision detection field, concretely relates to a crane track elevation detection frock, including detection subassembly and observation subassembly, detection subassembly includes inverted U -shaped clamp, fixed part, leveling piece, gasket, horizontal connecting rod, level, connecting rod and scale, inverted U -shaped clamp slidingly sets up above crane track, is provided with fixed part and leveling piece on inverted U -shaped clamp, and leveling piece is used for adjusting inverted U -shaped clamp level, and fixed part is used for fixing inverted U -shaped clamp on crane track, and the upside of inverted U -shaped clamp is fixedly provided with level, and horizontal connecting rod one end with inverted U -shaped clamp upside fixed, the other end fixed connecting rod, and the lower end of connecting rod is fixed with scale, and the scale is equipped with scale mark, and observation subassembly sets up on ground, is used for observing scale mark. The utility model through leveling piece leveling and fixed detection subassembly, through observation subassembly determines track elevation value, and the detection is accurate, and dismounts and transports conveniently.

Description

Technical Field

[0001] This utility model belongs to the field of precision testing of crane track installation engineering, and specifically relates to a crane track elevation testing fixture. Background Technology

[0002] Currently, the installation accuracy of cranes in most small and medium-sized enterprises in China is not high. Taking the elevation of the main track of a long-span bridge crane as an example, the national standard requires that "the relative difference between the elevations of two parallel tracks in the same section shall not be greater than 10mm".

[0003] Current methods for detecting crane track elevation involve direct measurement with a measuring tape. However, due to the relatively high absolute elevation of the crane track, typically 6-8 meters above the ground, direct measurement with a measuring tape cannot guarantee accuracy. Another method involves one inspector placing a measuring tape on the track while another inspector is raised to the corresponding height using a lift vehicle. A level is then used to check the level of the platform on the lift vehicle, and the inspector observes the tape's scale using telescopes or other equipment to determine the elevation. However, the high height of the lift vehicle causes swaying, affecting the inspection process and again compromising accuracy. Another method involves welding a temporary instrument storage rack to a specific height for measuring the track elevation. However, this method is problematic because the rack is difficult to weld, tall and thin, prone to tipping, and difficult to transport, making it unsuitable for detecting crane track elevations at varying heights. Summary of the Invention

[0004] This invention addresses the problems of existing crane track elevation detection methods, which often suffer from high absolute values, leading to inconsistent accuracy during testing. For example, measuring tapes may bend or tilt during testing, or the upper platform of a lifting vehicle may sway, affecting accuracy. Additionally, welding storage racks of a certain height presents challenges due to low adaptability and inconvenience in transportation. This invention provides a crane track elevation detection fixture. By adjusting the level of the inverted U-shaped clamp with a leveling component and checking the level with a spirit level, ground personnel can then determine the track elevation by observing the scale. The fixture can be repositioned at different locations on the crane track to achieve elevation detection at various positions, ensuring measurement stability and accuracy. Furthermore, it is convenient to transport and has good applicability.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows: A crane track elevation detection fixture is provided for detecting the elevation of a crane track, wherein the crane track is an "I"-shaped track. The fixture includes a detection component and an observation component. The detection component includes an inverted U-shaped clamp, a fixing component, a leveling component, a shim, a transverse connecting rod, a level, a connecting rod, and a ruler. The inverted U-shaped clamp is slidably mounted above the crane track. The fixing component and the leveling component are provided on the inverted U-shaped clamp. The leveling component is used to adjust the inverted U-shaped clamp to be horizontal. The fixing component is used to fix the inverted U-shaped clamp to the crane track. A shim is provided between the lower side of the transverse plate of the inverted U-shaped clamp and the upper side of the crane track, and the upper side of the shim is horizontal. The lower side of the inverted U-shaped clamp matches the upper side of the crane rail. A level is fixedly installed on the upper side of the inverted U-shaped clamp to detect whether the upper side of the inverted U-shaped clamp is level. One end of the transverse connecting rod is fixedly connected to the upper side of the inverted U-shaped clamp, and the other end extends above the crane rail and is fixedly connected to the connecting rod. A scale is fixedly connected to the lower end of the connecting rod, and the scale has graduations. The observation component is set on the ground to observe the graduations on the scale. The inverted U-shaped clamp and its transverse connecting rod are adjusted to be level by the leveling component. After the level is confirmed by the level, it is fixed by the fixing component. Then, the elevation is detected by observing the graduations on the scale using the observation component.

[0006] Preferably, the fixing component includes multiple fixing bolts threaded to both sides of the inverted U-shaped clamp. The fixing bolts pass through the vertical plate of the inverted U-shaped clamp and abut against both sides of the middle part of the crane rail. The inverted U-shaped clamp is clamped and fixed on the crane rail by rotating the fixing bolts.

[0007] Preferably, the leveling component includes multiple leveling screws threaded to both sides of the inverted U-shaped clamp. The leveling screws pass through the vertical plate of the inverted U-shaped clamp and abut against the upper sides of the crane rail. The upper side of the inverted U-shaped clamp is leveled by rotating the leveling screws.

[0008] Preferably, the inverted U-shaped clamp and the shim are fixedly connected by screws to ensure that the inverted U-shaped clamp is stably installed on the crane rail through the shim.

[0009] Preferably, both ends of the upper side of the inverted U-shaped clamp are fixedly provided with carrying rings, which facilitate the handling of the detection components and the movement of the inverted U-shaped clamp.

[0010] Preferably, diagonal bracing is fixedly provided between the transverse connecting rod and the connecting rod to ensure the perpendicularity and connection strength between the transverse connecting rod and the connecting rod.

[0011] Preferably, the connecting rod and the scale are fixedly connected by connecting bolts. The connecting rod has multiple fixing holes, and the scale has multiple through holes corresponding to the fixing holes. The connecting bolts pass through the corresponding fixing holes and through holes, and the scale height is adjusted by cooperating with the multiple fixing holes and connecting bolts.

[0012] Preferably, the observation component is a high-precision electronic level.

[0013] The beneficial effects of this utility model through the above technical solution are as follows: 1. This utility model ensures the stability of the inverted U-shaped clamp on the crane rail by setting a shim and making the lower part of the shim match the arc shape of the side of the crane rail. This ensures that the top of the inverted U-shaped clamp is level after installation. By rotating the leveling screw corresponding to the leveling component, the lateral movement of the inverted U-shaped clamp can be slightly adjusted. Combined with the mini high-precision level bubble set on the top, the top of the inverted U-shaped clamp can be kept level. Then, the inverted U-shaped clamp is fixed by the fixing component to ensure its stable level state, thereby ensuring measurement accuracy.

[0014] 2. This utility model reduces structural weight and makes it easy to carry by setting the transverse connecting rod as a tubular structure and the connecting rod as a right-angle plate, and both are made of aluminum alloy material, while having good rigidity and being not easily deformed.

[0015] 3. This utility model uses bolts to fix the scale, so that the height of the scale can be adjusted on the connecting rod as needed to adapt to the observation range of the ground observation component (high-precision electronic level), and thus is suitable for track elevation detection needs at different heights.

[0016] 4. The detection component of this utility model is easy to assemble and disassemble. It can be assembled and disassembled by rotating the fixing bolt. The staff can carry the detection component on the track to change the installation position of the detection component and realize the elevation detection at different positions. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 .

[0018] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0019] Figure 3 This is a schematic diagram of the detection component of this utility model installed on a crane rail. Figure 1 .

[0020] Figure 4 This is a schematic diagram of the detection component of this utility model installed on a crane rail. Figure 2 .

[0021] Figure 5 This is a schematic diagram of the detection component of this utility model installed on a crane rail. Figure 3 .

[0022] Figure 6This is a schematic diagram of the detection component of this utility model installed on a crane rail. Figure 4 .

[0023] Figure 7 This utility model Figure 2 Enlarged view of point A in the middle.

[0024] The attached diagram is labeled as follows: 1 is the crane rail, 2 is the inverted U-shaped clamp, 3 is the fixing component, 4 is the leveling component, 5 is the shim, 6 is the transverse connecting rod, 7 is the level, 8 is the connecting rod, 9 is the scale, 10 is the carrying ring, 11 is the diagonal brace reinforcement, 12 is the connecting bolt, 13 is the fixing hole, and 14 is the observation component. Detailed Implementation

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments: like Figures 1 to 7 As shown, this embodiment provides a crane track elevation detection fixture for detecting the elevation of crane track 1, and further, for the precise detection of the elevation of bridge crane track. The crane track 1 is an "I"-shaped track. Taking GB / T2585-2021 railway hot-rolled steel rail 43KG as an example, it includes a detection component and an observation component 14. The detection component includes an inverted U-shaped clamp 2, a fixing component 3, a leveling component 4, a shim 5, a transverse connecting rod 6, a level 7, a connecting rod 8, and a ruler 9.

[0026] The inverted U-shaped clamp 2 is slidably disposed above the crane rail 1. The inverted U-shaped clamp 2 is fastened to the upper part of the crane rail 1. The inverted U-shaped clamp 2 is an inverted U-shaped (or n-shaped) structure with a length of 200mm and a height of 106mm made of 16mm thick steel plate. The inverted U-shaped clamp 2 is provided with a fixing part 3 and a leveling part 4. The leveling part 4 is used to adjust the level of the inverted U-shaped clamp 2. The leveling part 4 includes multiple leveling screws threaded to both sides of the inverted U-shaped clamp 1. The leveling screws pass through the vertical plate of the inverted U-shaped clamp 2 and then abut against the upper sides of the crane rail 1. The leveling screws are M10*35 leveling screws and are matched with M10 nuts for locking. The inverted U-shaped clamp 2 can be moved laterally (i.e., moved along the width direction of the crane rail 1) by rotating the leveling screws. After the position is adjusted, it is locked by the nuts.

[0027] It should be noted that the inner width of the inverted U-shaped clamp 2 is 0.2-0.3 mm wider than the upper width of the crane rail 1.

[0028] The fixing component 3 is used to fix the inverted U-shaped clamp 2 on the crane rail 1. The fixing component 3 includes multiple fixing bolts threaded to both sides of the inverted U-shaped clamp 2. The fixing bolts pass through the vertical plate of the inverted U-shaped clamp 2 and abut against the middle two sides of the crane rail 1. The fixing bolts are M16*65 external hex bolts, and there are four of them symmetrically arranged on the inverted U-shaped clamp 2. After the leveling and position determination of the inverted U-shaped clamp 2 are completed, the inverted U-shaped clamp 2 is fixed by rotating the fixing bolts, and four M16 nuts are provided to lock and prevent loosening.

[0029] A shim 5 is provided between the lower side of the horizontal plate of the inverted U-shaped clamp 2 and the upper side of the crane rail 1. The upper side of the shim 5 is horizontal, and the lower side matches the upper side of the crane rail 1. The lower side of the brass shim 5 is machined into an arc shape to match the top contour of the crane rail 1, and the upper side is set as a plane to match the inner top surface of the inverted U-shaped clamp 2, thereby ensuring the installation stability of the inverted U-shaped clamp 2. Furthermore, the inverted U-shaped clamp 2 and the shim 5 are fixedly connected by screws. The shim 5 can be replaced according to different rail shapes to improve the adaptability of the device.

[0030] A level 7 is fixedly installed on the upper side of the inverted U-shaped clamp 2 to detect whether the upper side of the inverted U-shaped clamp 2 is level. The level 7 is a 100*18*22 mini high-precision bar level with an internal bubble and an accuracy of 4” / 2mm. It is fixed to the inverted U-shaped clamp 2 by two M5X35 internal hex screws to detect whether the upper side of the inverted U-shaped clamp 2 is level.

[0031] One end of the transverse connecting rod 6 is fixedly connected to the upper side of the inverted U-shaped clamp 2, and the other end extends above the crane rail 1 and is fixedly connected to the connecting rod 8. The connecting rod 8 is vertically set and its upper end is welded to the transverse connecting rod 6. The transverse connecting rod 6 avoids the crane rail 1. The transverse connecting rod 6 adopts an aluminum alloy square tube (20*12*δ2GB / T4436-1996) structure and is connected by two M8*30 internal hexagon screws and one ф6X25GB / T120.1-2000 internal thread cylinder. The pin is precisely fixed on the upper surface of the inverted U-shaped clamp 2. While adjusting the inverted U-shaped clamp 2 to be horizontal, the horizontal connecting rod 6 is also horizontal. The connecting rod 8 is set at a right angle to the horizontal connecting rod 6. That is, when the horizontal connecting rod 6 is horizontal, the connecting rod 8 is vertical. The connecting rod 8 is made of 30*20*5 unequal-sided aluminum. To ensure strength and maintain rigidity, a diagonal bracing rib 11 is fixed between the horizontal connecting rod 6 and the connecting rod 8. The diagonal bracing rib 11 is a 10*16*2 square hollow tube.

[0032] A scale 9 is fixedly connected to the lower end of the connecting rod 6. The scale 9 has graduations. The connecting rod 8 and the scale 9 are fixedly connected by connecting bolts 12. The connecting rod 8 has multiple fixing holes 13. The scale 9 has multiple through holes corresponding to the fixing holes 13. The connecting bolts 12 pass through the corresponding fixing holes 13 and through holes. There are two connecting bolts 12, located at the upper and lower ends of the scale 9 respectively. The connecting bolts 12 are M4*12 hexagonal bolts. Correspondingly, there are two through holes, located at the upper and lower ends of the scale 9 respectively. There are multiple fixing holes 13 to meet the needs of adjusting the scale 9 up and down, so that the observation component 14 can clearly read the graduations of the scale 9.

[0033] The observation component 14 is set on the ground and is used to observe the scale on the scale 9. The observation component 14 is a high-precision electronic level. Specifically, the observation component 14 can be a DS03 elevation detection instrument manufactured by Suzhou Yiguang, with an accuracy of ±0.3mm.

[0034] As one possible implementation, the accuracy of the scale 9 is 0.5mm, which, combined with the ±0.3mm accuracy of the observation component, results in an overall track elevation detection accuracy of ±0.5mm, meeting the national standard requirement of an accuracy of less than or equal to 10mm [GB50278-2010 Construction and Acceptance Specification for Lifting Equipment Installation Engineering].

[0035] Both ends of the inverted U-shaped clamp 2 are fixedly provided with a carrying ring 10. The carrying ring 10 is a round rod with a diameter of 6mm folded into a semi-circle, and its two ends are welded and fixed to both sides of the inverted U-shaped clamp 2. The detection component can be moved conveniently by holding the carrying ring 10.

[0036] In use, one worker first places the inverted U-shaped clamp 2 onto the position to be tested on the crane rail 1. Then, the leveling screws are adjusted to make the top of the inverted U-shaped clamp 2 level (the level is confirmed by the level instrument 7). The four fixing bolts are then tightened to secure the inverted U-shaped clamp 2. The end of the transverse connecting rod 6 is then fixed to the upper side of the inverted U-shaped clamp 2 with screws and cylindrical pins, and offset laterally by 300-400mm below the crane rail 1. Another worker sets up the observation component 14 on the ground and adjusts the scale 9 so that the scale of the observation component 14 can be clearly seen. The elevation value of that point is then read. The detection component is then removed from the crane rail 1 and moved laterally a certain distance (e.g., 12 or 24m) along the extension direction of the rail. The above steps are repeated, and the elevation values ​​of different positions on the crane rail 1 can be detected in a similar manner, thereby determining the relative elevation of different positions and providing a technical basis for precise adjustment.

[0037] As one possible implementation, in this embodiment, the elevation of the crane rail 1 is 1800mm (the top of the crane rail 1 is 1800mm from the ground), the lateral distance of the scale 9 is 300mm (the distance between the scale 9 and the crane rail 1 is 300mm), and the longitudinal distance between the center of the observation component 14 and the monitoring point of the crane rail 1 is 500mm (the distance between the observation component 14 and the scale 9 is 500mm). Furthermore, according to the actual needs of the work, the elevation of the crane rail 1 can be 6-8m, the lateral distance of the scale 9 can be 300-500m, and the longitudinal distance between the center of the observation component 14 and the monitoring point of the rail can be 5m-50m, and the specific values ​​are not limited to the above ranges.

[0038] The embodiments described above are merely preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes or modifications made to the structure, features and principles described in the patent claims of this utility model should be included within the scope of the patent application of this utility model.

Claims

1. A crane track elevation detection fixture, used for elevation detection of a crane track (1), wherein the crane track (1) is an "I"-shaped track, characterized in that, The system includes a detection component and an observation component (14). The detection component includes an inverted U-shaped clamp (2), a fixing component (3), a leveling component (4), a shim (5), a transverse connecting rod (6), a level (7), a connecting rod (8), and a scale (9). The inverted U-shaped clamp (2) is slidably mounted above the crane rail (1). The inverted U-shaped clamp (1) is provided with a fixing component (3) and a leveling component (4). The leveling component (4) is used to adjust the level of the inverted U-shaped clamp (2). The fixing component (3) is used to fix the inverted U-shaped clamp (2) on the crane rail (1). A shim (5) is provided between the lower side of the horizontal plate of (2) and the upper side of the crane rail (1). The upper side of the shim (5) is horizontal and the lower side matches the upper side of the crane rail (1). A level (7) is fixedly provided on the upper side of the inverted U-shaped clamp (2) to detect whether the upper side of the inverted U-shaped clamp (2) is horizontal. One end of the transverse connecting rod (6) is fixedly connected to the upper side of the inverted U-shaped clamp (2), and the other end extends above the crane rail (1) and is fixedly connected to the connecting rod (6). A scale (9) is fixedly connected to the lower end of the connecting rod (6). The scale (9) is provided with graduations. The observation component (14) is set on the ground and is used to observe the scale on the ruler (9).

2. The crane track elevation detection fixture according to claim 1, characterized in that, The fixing component (3) includes multiple fixing bolts threadedly connected to both sides of the inverted U-shaped clamp (2), and the fixing bolts pass through the vertical plate of the inverted U-shaped clamp (2) and then abut against the middle sides of the crane rail (1).

3. The crane track elevation detection fixture according to claim 1, characterized in that, The leveling component (4) includes multiple leveling screws threaded to both sides of the inverted U-shaped clamp (1). The leveling screws pass through the vertical plate of the inverted U-shaped clamp (2) and then abut against the upper sides of the crane rail (1).

4. The crane track elevation detection fixture according to claim 1, characterized in that, The inverted U-shaped clamp (2) and the gasket (5) are fixedly connected by screws.

5. The crane track elevation detection fixture according to claim 1, characterized in that, The inverted U-shaped clamp (2) has handles (10) fixedly installed at both ends of its upper side.

6. The crane track elevation detection fixture according to claim 1, characterized in that, A diagonal bracing rib (11) is fixedly provided between the transverse connecting rod (6) and the connecting rod (8).

7. The crane track elevation detection fixture according to claim 1, characterized in that, The connecting rod (8) and the scale (9) are fixedly connected by a connecting bolt (12). The connecting rod (8) has multiple fixing holes (13), and the scale (9) has multiple through holes corresponding to the fixing holes (13). The connecting bolt (12) passes through the corresponding fixing holes (13) and through holes.

8. The crane track elevation detection fixture according to claim 1, characterized in that, The observation component (14) is a high-precision electronic level.

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