Trackless fixed measurement device for overhead line system
By designing a trackless contact network measurement device and utilizing adjustment and correction components, precise adjustment and efficient measurement of the trackless contact network were achieved. This solved the problems of complex operation and large errors in traditional methods, and improved the accuracy and efficiency of measurement.
Patent Information
- Application Number
- CN202511667560.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-14
- Publication Date
- 2026-01-27
AI Technical Summary
Traditional trackless measurement methods are complex to operate, require professional personnel, and are time-consuming, resulting in low measurement efficiency and a high susceptibility to errors.
A trackless contact network measurement device was designed, including a measuring bracket and a measuring platform, equipped with adjustment and correction components. The height and position can be precisely adjusted by the adjustment components, and a contact network laser detector is integrated to directly project the positioning point, reducing errors.
It improves the accuracy and efficiency of measurements, simplifies the operation process, reduces reliance on professional personnel, and reduces measurement errors.
Smart Images
Figure CN121409199A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of engineering surveying, in particular to a contact net non-rail fixed measuring device. BACKGROUND
[0002] In the process of urban rail transit contact net construction, non-rail fixed measurement is a crucial preliminary work, and its precision and efficiency are directly related to the progress and quality of the project. The traditional non-rail measurement method adopts total station combined with track control points for positioning and lofting. Although the precision is high, the operation threshold is also high, and a series of complex operations such as instrument erection, calibration and data processing must be completed by professional personnel. From the erection and calibration of the instrument to the collection and processing of data, each link must be strictly executed according to the operation procedures, and any slight negligence may cause deviation in the measurement results. In addition, due to the tedious operation steps, the time consumed is relatively long, which leads to low efficiency of fixed measurement. SUMMARY
[0003] In view of the deficiencies of the prior art, the present application provides a contact net non-rail fixed measuring device to solve the problems in the background art.
[0004] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a contact net non-rail fixed measuring device, comprising a measuring support and a measuring platform arranged on the measuring support, the measuring support comprising an upper support mechanism and a lower moving platform, the upper support mechanism and the lower moving platform being vertically connected to form an I-shaped structure, the measuring platform being installed on the upper support mechanism, the lower moving platform top end middle position being provided with an adjusting assembly for adjusting the horizontal height of the upper support mechanism and the measuring platform, the upper support mechanism middle part being further provided with a correction assembly for adjusting the horizontal position of the measuring platform, the lower moving platform comprising two foot support rods, two longitudinal square tubes and a transverse square tube, the two foot support rods being horizontally symmetrically arranged and mutually parallel, the two longitudinal square tubes being respectively fixedly connected at the top end middle positions of the two foot support rods, and the transverse square tube being horizontally arranged between the two longitudinal square tubes and being fixedly sleeved with the two longitudinal square tubes.
[0005] Further, the upper support mechanism comprises a supporting rod, two connecting rods and two sliding rods, the supporting rod being horizontally arranged above the transverse square tube, the two connecting rods being symmetrically fixed at the bottom of the supporting rod, the two sliding rods being respectively fixedly connected at the bottom ends of the two connecting rods, the top of each longitudinal square tube being provided with a sliding groove, the two sliding rods being respectively extended into the two sliding grooves and being in sliding connection with the two sliding grooves, the bottom end of each sliding rod being fixedly connected with a bottom plate, the sliding groove being provided with a first spring inside, and the two ends of the first spring being respectively abutted against the bottom plate and the inner bottom wall of the sliding groove.
[0006] Further, the measuring platform comprises a mounting rod, a mounting base for mounting the overhead line laser detector and two limiting assemblies, the mounting rod is horizontally arranged above the supporting rod, the two limiting assemblies are symmetrically arranged at the bottom of the mounting rod, limiting grooves are arranged on both sides of the supporting rod, the two limiting grooves penetrate into the two connecting rods, the two limiting assemblies are respectively inserted into the two limiting grooves, and the mounting base is fixedly arranged on one side of the top of the mounting rod.
[0007] Further, the adjusting assembly comprises a rotating drum, an adjusting screw, a first locking nut and a second locking nut, the rotating drum is rotatably arranged at the middle position of the top of the horizontal square tube through a bearing, one end of the adjusting screw is threadedly connected to the inside of the rotating drum, the other end of the adjusting screw extends to the bottom end of the mounting rod through the middle of the supporting rod, and the other end of the adjusting screw is fixedly connected to the mounting rod, the first locking nut and the second locking nut are respectively arranged at the upper end and the lower end of the supporting rod, and the first locking nut and the second locking nut are both threadedly connected with the adjusting screw.
[0008] Further, the outer walls of the first locking nut and the second locking nut are uniformly provided with a plurality of handles in the circumferential direction.
[0009] Further, the limiting assembly comprises a lead screw, a T-shaped nut and a second spring, the top end of the lead screw is fixedly connected to the bottom of the mounting rod through an angle steel, the bottom end of the lead screw is inserted into the limiting groove and is in sliding connection with the limiting groove, the T-shaped nut is threadedly connected to the outer wall of the lead screw and abuts against the top of the mounting rod, and the second spring is movably sleeved on the outer wall of the lead screw, and the two ends of the second spring abut against the T-shaped nut and the angle steel respectively.
[0010] Further, the bottom side of the foot support rod is provided with a pulley, a screw hole is arranged on the side of the foot support rod away from the pulley, and a leveling screw is threadedly connected in the screw hole.
[0011] Further, a handle is arranged at the middle position of the top end of the mounting rod, recesses are arranged on both sides of the top of the mounting rod, rotating shafts are fixedly connected in the two recesses, and the handle is rotatably connected with the rotating shafts in the two recesses.
[0012] Further, the correcting assembly comprises two mounting blocks and two groups of micro laser range finders, the two mounting blocks are symmetrically distributed about the central axis of the mounting block, and mounting grooves are arranged on the sides away from each other of the two mounting blocks, and the two groups of micro laser range finders are fixedly installed in the two mounting grooves respectively.
[0013] Compared with the prior art, the present application has the following beneficial effects: In the application, by adjusting the setting of the adjusting assembly, the height of the upper supporting mechanism and the measuring platform can be precisely adjusted, the measuring platform can reach the required measuring height, the height of the ballast bed can be simulated, or by checking the data, the height difference of the measuring platform can be adjusted, the super height of the track can be simulated, and the measurement error can be reduced. After adjustment, the device integrates the catenary laser detector, the positioning point can be directly projected to the top of the tunnel, the error caused by multiple measurements in the traditional measurement is avoided, and the measurement accuracy and efficiency are greatly improved. BRIEF DESCRIPTION OF DRAWINGS
[0014] Fig. 1 It is a schematic diagram of the overall structure of the catenary trackless measuring device of the application. Fig. 2 It is a schematic diagram of the structure of the lower moving platform. Fig. 3 It is a schematic diagram of the connection structure of the upper supporting mechanism and the measuring platform. Fig. 4 It is a sectional view of the overall structure of the catenary trackless measuring device of the application.
[0015] In the figure: 1, measuring support; 2, measuring platform; 3, upper supporting mechanism; 4, lower moving platform; 5, adjusting assembly; 6, correcting assembly; 7, pulley; 8, leveling screw; 9, handle; 10, groove; 21, mounting rod; 22, mounting base; 23, limiting assembly; 24, screw rod; 25, T-shaped nut; 26, second spring; 27, limiting groove; 31, supporting rod; 32, connecting rod; 33, sliding rod; 34, sliding groove; 35, bottom plate; 36, first spring; 41, foot support rod; 42, longitudinal square tube; 43, transverse square tube; 51, rotating drum; 52, adjusting screw; 53, first locking nut; 54, second locking nut; 55, handle; 61, mounting block; 62, miniature laser range finder. DETAILED DESCRIPTION
[0016] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, not all the embodiments.
[0017] Please refer to Figs. 1 to 4The application provides a contact network trackless measuring device, which comprises a measuring support 1 and a measuring platform 2 arranged on the measuring support 1, characterized in that the measuring support 1 comprises an upper support mechanism 3 and a lower moving platform 4, the upper support mechanism 3 and the lower moving platform 4 are vertically connected to form an I-shaped structure, the measuring platform 2 is arranged on the upper support mechanism 3, the lower moving platform 4 is provided with an adjusting assembly 5 arranged at the top middle position of the lower moving platform 4 and used for adjusting the horizontal height of the upper support mechanism 3 and the measuring platform 2, and the upper support mechanism 3 is further provided with a correcting assembly 6 arranged at the middle position of the upper support mechanism 3 and used for adjusting the horizontal position of the measuring platform 2.
[0018] Before measurement, the device is moved to the track base pile by the lower moving platform 4, the lower moving platform 4 is stably placed in a suitable position, and the stability is ensured. Then, the horizontal height of the upper support mechanism 3 and the measuring platform 2 is accurately adjusted by the adjusting assembly 5, so that the measuring platform 2 reaches the required measuring height, thereby the height of the ballast bed can be simulated, or the height difference of the measuring platform 2 is adjusted according to the data, thereby the super elevation of the track can be simulated, after the adjustment is completed, the state of the track after laying can be simulated, and after the height adjustment is completed, the horizontal position of the measuring platform 2 is finely adjusted by the correcting assembly 6, so that the measuring platform 2 is in a horizontal state, and the measurement error is reduced. After the adjustment is completed, the device is integrated with a contact network laser detector, the positioning point can be directly projected to the top of the tunnel, the error caused by multiple measurements in the traditional measurement is avoided, the accuracy and efficiency of the measurement are greatly improved, and meanwhile, the two foot struts 41 provide a stable support foundation through the arrangement of the lower moving platform 4, and the combined structure of the two longitudinal square tubes 42 and the transverse square tube 43 not only enhances the stability of the overall structure, but also makes the device more flexible and convenient during movement and adjustment.
[0019] Specifically, the upper support mechanism 3 comprises a supporting rod 31, two connecting rods 32 and two sliding rods 33, the supporting rod 31 is horizontally arranged above the transverse square tube 43, the two connecting rods 32 are symmetrically fixed at the bottom of the supporting rod 31, the two sliding rods 33 are respectively fixedly connected to the bottom ends of the two connecting rods 32, the top of each longitudinal square tube 42 is provided with a sliding groove 34, the two sliding rods 33 extend into the two sliding grooves 34 and are in sliding connection with the two sliding grooves 34, and the bottom end of each sliding rod 33 is fixedly connected with a bottom plate 35.
[0020] The measuring platform 2 comprises a mounting rod 21, a mounting base 22 for mounting the overhead line laser detector and two limiting assemblies 23, the mounting rod 21 is horizontally arranged above the supporting rod 31, the two limiting assemblies 23 are symmetrically arranged at the bottom of the mounting rod 21, the limiting grooves 27 are arranged at the two sides of the supporting rod 31, the two limiting grooves 27 penetrate into the two connecting rods 32, the two limiting assemblies 23 are respectively inserted into the two limiting grooves 27, and the mounting base 22 is fixedly arranged at one side of the top of the mounting rod 21.
[0021] The adjusting assembly 5 comprises a rotating barrel 51, an adjusting screw 52, a first locking nut 53 and a second locking nut 54, the rotating barrel 51 is rotationally arranged at the middle position of the top end of the transverse square tube 43 through a bearing, one end of the adjusting screw 52 is threadedly connected to the inside of the rotating barrel 51, the other end penetrates through the middle of the supporting rod 31 and extends to the bottom end of the mounting rod 21 and is fixedly connected with the mounting rod 21, and the first locking nut 53 and the second locking nut 54 are respectively located at the upper end and the lower end of the supporting rod 31 and are both threadedly connected with the adjusting screw 52.
[0022] In the initial state, the first locking nut 53 and the second locking nut 54 are respectively threadedly connected to the outer wall of the adjusting screw 52 and are located at the upper end and the lower end of the supporting rod 31, when it is necessary to adjust the height of the upper supporting mechanism 3, the rotating barrel 51 is rotated, the first locking nut 53 is rotated according to the height to be adjusted, the second locking nut 54 is moved downward along the outer wall of the adjusting screw 52, then the rotating barrel 51 is rotated, the rotating barrel 51 drives the adjusting screw 52 to rotate, since the adjusting screw 52 is fixedly connected with the mounting rod 21 and the mounting rod 21 is matched with the limiting groove 27 of the supporting rod 31 through the limiting assembly 23, the mounting rod 21 does not rotate with the adjusting screw 52 but moves along the axial direction of the adjusting screw 52, thereby driving the whole upper supporting mechanism 3 to ascend or descend.
[0023] The limiting assembly 23 comprises a lead screw 24, a T-shaped nut 25 and a second spring 26, the top end of the lead screw 24 is fixedly connected to the bottom of the mounting rod 21 through an angle steel, the bottom end of the lead screw 24 is inserted into the limiting groove 27 and is slidably connected with the limiting groove 27, the T-shaped nut 25 is threadedly connected to the outer wall of the lead screw 24 and abuts against the top of the mounting rod 21, and the second spring 26 is movably sleeved on the outer wall of the lead screw 24 and abuts against the T-shaped nut 25 and the angle steel at two ends.
[0024] When the height of the measuring platform 2 needs to be adjusted, the T-shaped nut 25 is rotated according to the required height adjustment position, so that the T-shaped nut 25 moves upward or downward along the outer wall of the lead screw 24, and then the first locking nut 53 or the second locking nut 54 is rotated according to the required height adjustment position. If the mounting rod 21 needs to be moved upward, the first locking nut 53 is rotated upward to provide the required space. If the mounting rod 21 needs to be moved downward, the second locking nut 54 is rotated downward. Then the rotating drum 51 is rotated to drive the adjusting screw 52 to move. Since the lead screw 24 is fixedly connected to the bottom of the mounting rod 21 through the angle steel, and the lead screw 24 can only slide axially in the limiting groove 27, when the adjusting screw 52 moves, it can drive the mounting rod 21 and the measuring platform 2 connected to the top of the mounting rod 21 to rise or fall as a whole, so as to realize the precise adjustment of the height of the measuring platform 2. When the measuring platform 2 is adjusted to the appropriate height, the first locking nut 53 and the second locking nut 54 are tightened again to tightly fit the upper and lower ends of the supporting rod 31, respectively, and the T-shaped nut 25 also tightly abuts against the top of the mounting rod 21. Through the locking and fixing of the three places, the height position of the upper supporting mechanism 3 and the measuring platform 2 after adjustment is kept stable, and the height will not change due to slight disturbance from the outside, so as to ensure the accuracy and reliability of the overhead line trolley fixed measurement device during the measurement process.
[0025] Meanwhile, the first spring 36 and the second spring 26 can play a buffering role when the device is subjected to vibration or external force impact, further enhancing the adaptability and measurement stability of the overhead line trolley fixed measurement device in complex environments.
[0026] The outer wall of the first locking nut 53 and the second locking nut 54 is uniformly provided with a plurality of handles 55 in the circumferential direction.
[0027] The handles 55 are arranged to facilitate the operator to rotate the first locking nut 53 and the second locking nut 54. During the adjustment of the height of the upper supporting mechanism 3, without the aid of additional tools, the operator can directly hold the handles 55 and apply force to easily realize the rotation operation of the first locking nut 53 and the second locking nut 54, greatly improving the convenience and efficiency of the adjustment, and also reducing the operation difficulty, so that the entire height adjustment process is more smooth.
[0028] Two foot support rods 41 bottom side of one side of the pulley 7, foot support rod 41 away from the pulley 7 side of the screw hole, the screw hole inside the threaded connection has leveling screw 8. Because of the tunnel positioning points, the device carrying mobile frequently, this for the test personnel physical consumption is still larger, therefore, through the foot support rod 41 bottom setting pulley 7 facilitates the flexible movement of the device in the tunnel, effectively reduce the carrying burden of test personnel. And leveling screw 8 design makes the device placed in uneven ground, can adjust the level of the device by rotating leveling screw 8, ensure the stability of the measurement platform 2, and then guarantee the accuracy of the measurement data. This pulley 7 and leveling screw 8 combination design, both improve the convenience of the device movement, and enhance its adaptability and measurement stability in complex terrain.
[0029] The top of the mounting rod 21 is provided with a handle 9, and the top of the mounting rod 21 is provided with a recess 10. The two recesses 10 are fixedly connected with the shafts, and the two ends of the handle 9 are rotatably connected with the shafts in the two recesses 10.
[0030] The handle 9 can rotate around the shaft in the recess 10, which is convenient for the staff to push the device to move. When the contact net trackless measurement device needs to be moved or carried, the handle 9 is rotated to the appropriate position, and the operator holds the handle 9 and exerts force, so that the device can be easily lifted or dragged, which provides convenience for the carrying and moving of the device, and further improves the convenience of the device.
[0031] The correction assembly 6 includes two mounting blocks 61 and two groups of micro laser range finders 62. The two mounting blocks 61 are symmetrically distributed about the center axis of the mounting block 61, and the opposite sides of the two mounting blocks 61 are provided with mounting grooves. The two groups of micro laser range finders 62 are fixedly installed in the two mounting grooves, respectively.
[0032] By setting the correction assembly 6 in the middle of the supporting rod 31, when the device is moved to the track foundation pile, in order to ensure that the measuring platform 2 is at the track center point, two groups of micro laser range finders 62 respectively emit laser beams to both sides of the supporting rod 31, and the relative distance between the measuring platform 2 and the two sides of the track is measured. When the distance data fed back by the two laser range finders are equal, it can be determined that the measuring platform 2 is accurately at the track center point position, effectively avoiding the measurement error caused by the position deviation, and improving the accuracy and reliability of the measurement operation. It is worth noting that if the laser beam on one side of the supporting rod 31 is blocked, it indicates that the position of the measuring platform 2 is deviated, at this time, the position of the measuring platform 2 can be adjusted according to the direction of the blocked laser beam, until the distance data fed back by the two laser range finders are equal again, ensuring that the measuring platform 2 is accurately located at the track center point. This position correction method using the correction assembly 6 and the micro laser range finder 62 is simple and quick in operation, and can quickly and accurately complete the positioning work of the measuring platform 2, effectively improving the quality and efficiency of the whole measurement work.
[0033] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A trackless contact wire measurement device, comprising a measuring bracket (1) and a measuring platform (2) mounted on the measuring bracket (1), characterized in that, The measuring bracket (1) includes an upper support mechanism (3) and a lower moving platform (4). The upper support mechanism (3) and the lower moving platform (4) are connected vertically to form an I-beam structure. The measuring platform (2) is installed on the upper support mechanism (3). An adjustment component (5) for adjusting the horizontal height of the upper support mechanism (3) and the measuring platform (2) is installed at the middle of the top of the lower moving platform (4). A correction component (6) for adjusting the horizontal position of the measuring platform (2) is also provided in the middle of the upper support mechanism (3). The lower moving platform (4) includes two foot support rods (41), two longitudinal square tubes (42), and one transverse square tube (43). The two foot support rods (41) are arranged horizontally symmetrically and are parallel to each other. The two longitudinal square tubes (42) are vertically fixedly connected to the middle of the top of the two foot support rods (41). The transverse square tube (43) is horizontally arranged between the two longitudinal square tubes (42) and is fixedly sleeved with the two longitudinal square tubes (42).
2. The contact wire trackless measurement device according to claim 1, characterized in that, The upper support mechanism (3) includes a support rod (31), two connecting rods (32) and two sliding rods (33). The support rod (31) is horizontally arranged above the transverse square tube (43). The two connecting rods (32) are symmetrically fixed on both sides of the bottom of the support rod (31). The two sliding rods (33) are respectively fixedly connected to the bottom ends of the two connecting rods (32). The top of the two longitudinal square tubes (42) is provided with a sliding groove (34). The two sliding rods (33) extend into the two sliding grooves (34) and are slidably connected to the two sliding grooves (34). The bottom ends of the two sliding rods (33) are fixedly connected to a base plate (35). A first spring (36) is provided inside the sliding groove (34). The two ends of the first spring (36) abut against the bottom plate (35) and the bottom wall of the sliding groove (34) respectively.
3. The contact wire trackless measurement device according to claim 1, characterized in that, The measuring platform (2) includes a mounting rod (21), a mounting base (22) for mounting a contact wire laser detector, and two limiting components (23). The mounting rod (21) is horizontally positioned directly above the support rod (31). The two limiting components (23) are symmetrically positioned on both sides of the bottom of the mounting rod (21). Limiting grooves (27) are provided on both sides of the support rod (31). The two limiting grooves (27) extend into the interior of the two connecting rods (32). The two limiting components (23) are respectively inserted into the two limiting grooves (27). The mounting base (22) is fixedly positioned on one side of the top of the mounting rod (21).
4. The contact wire trackless measurement device according to claim 2, characterized in that, The adjustment assembly (5) includes a rotating drum (51), an adjusting screw (52), a first locking nut (53), and a second locking nut (54). The rotating drum (51) is rotatably mounted at the middle position of the top of the transverse square tube (43) via a bearing. One end of the adjusting screw (52) is threaded into the inside of the rotating drum (51), and the other end extends through the middle of the support rod (31) to the bottom end of the mounting rod (21) and is fixedly connected to the mounting rod (21). The first locking nut (53) and the second locking nut (54) are located at the upper and lower ends of the support rod (31), respectively, and both the first nut and the second nut are threadedly connected to the adjusting screw (52).
5. The contact wire trackless measurement device according to claim 4, characterized in that, The outer walls of the first locking nut (53) and the second locking nut (54) are evenly provided with multiple handles (55) along the circumferential direction.
6. The contact wire trackless measurement device according to claim 3, characterized in that, The limiting component (23) includes a lead screw (24), a T-nut (25), and a second spring (26). The top end of the lead screw (24) is fixedly connected to the bottom of the mounting rod (21) by an angle steel. The bottom end of the lead screw (24) is inserted into the limiting groove (27) and is slidably connected to the limiting groove (27). The T-nut (25) is threadedly connected to the outer wall of the lead screw (24) and abuts against the top of the mounting rod (21). The second spring (26) is movably sleeved on the outer wall of the lead screw (24), and both ends of the second spring (26) abut against the T-nut (25) and the angle steel, respectively.
7. The contact wire trackless measurement device according to claim 1, characterized in that, A pulley (7) is installed on one side of the bottom of the two support rods (41). A screw hole is opened on the side of the support rod (41) away from the pulley (7), and a leveling screw (8) is threaded inside the screw hole.
8. The contact wire trackless measurement device according to claim 3, characterized in that, A handle (9) is provided at the middle position of the top of the mounting rod (21). Grooves (10) are provided on both sides of the top of the mounting rod (21). Rotating shafts are fixedly connected in both grooves (10). The two ends of the handle (9) are rotatably connected to the rotating shafts in the two grooves (10).
9. The trackless contact wire measurement device according to claim 1, characterized in that, The correction component (6) includes two mounting blocks (61) and two sets of miniature laser rangefinders (62). The two mounting blocks (61) are symmetrically distributed about the central axis of the mounting blocks (61), and mounting grooves are opened on the opposite side of the two mounting blocks (61). The two sets of miniature laser rangefinders (62) are fixedly installed in the two mounting grooves respectively.