Winding mechanism for control point positioning lofting device

Abstract

The utility model discloses a winding mechanism for a control point positioning and lofting device, which belongs to the technical field of railway line control point positioning and lofting equipment and particularly structurally comprises a winding drum, a rotating shaft and a winding handle, the rotating shaft is fixedly connected onto a mounting frame, and the winding drum is rotatably connected onto the rotating shaft through a bearing and locked by a locking mechanism. The winding handle is mounted on the winding drum and deviates from the axis by a certain distance; the lofting rope is wound through the winding mechanism of the locking mechanism, fixed-length drawing and fixing can be achieved according to needs, only the drawn part needs to be measured when the length is measured, the problem that whether the lofting rope is too long or not does not need to be considered, the measuring efficiency and the measuring precision are greatly improved, and drawing and pulling are convenient and fast.

Description

Technical Field

[0001] The utility model belongs to the technical field of line control point positioning and setting out equipment, and relates to a winding mechanism used for a control point positioning and setting out device. Background Art

[0002] At present, when reconstructing the ballasted track of the existing railway and locating the ballasted track with the adjacent line, the control points are marked on site at the adjacent line of the existing line, the line spacing between the adjacent line and the line to be switched (or the newly rebuilt line) is calculated, and the control points of the connecting line are positioned by a tape measure (long steel ruler), so as to control the direction of the switching line (or the newly rebuilt line). The direction of the tape measure can only be determined visually, especially when the tape measure reading is taken for the line with a line spacing greater than 5m, the deviation is large. After the line connection is completed, the direction error of the newly built line is large, and the workload of fine adjustment and rectification in the later stage is large. Even the uneven line causes the car to shake, which seriously affects the driving stability and safety. Therefore, there is an urgent need for a positioning and setting out device for the control points of the adjacent line of the existing railway, which can accurately locate the control points of the switching line (newly rebuilt line) to improve the efficiency and accuracy of the switching construction, while reducing the workload of fine adjustment in the later stage, so as to ensure that the existing railway is switched and opened smoothly within a limited time.

[0003] At the same time, when laying railway track lines, crooked sleepers are a common quality problem in railway construction. Usually, a square ruler is used for positioning and correction. Since the square ruler is long, easy to deform and inconvenient to carry, it is inconvenient to use. A positioning and staking out device for control points of adjacent lines of existing railways can be provided to replace the square ruler for sleeper correction; however, in the process of using the equipment for laying out, if a fixed-length staking out rope is used, it is difficult to determine the exact position of the fixed point of the staking out rope, which is inconvenient to mark and affects the measurement accuracy. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a winding mechanism for a control point positioning and setting out device, which can realize fixed-length release according to needs, is convenient for measurement, and improves measurement accuracy and efficiency.

[0005] The technical solution adopted by the utility model is: a winding mechanism for a control point positioning and lofting device, comprising a winding drum, a rotating shaft and a winding handle, the rotating shaft is fixedly connected to a mounting frame, the winding drum is rotatably connected to the rotating shaft through a bearing and is locked by a locking mechanism, and the winding handle is installed on the winding drum and deviates from its axis by a certain distance.

[0006] Furthermore, the locking mechanism comprises a step hole, a telescopic shaft and an annular end face tooth vertically arranged on the cylindrical arm inside the winding drum, the step hole is larger at the bottom and smaller at the top, the telescopic shaft is inserted therein, an annular step is arranged near the lower end of the telescopic shaft, a latching tooth is arranged at the lower end of the telescopic shaft, and a detachable handle is arranged after the upper end of the telescopic shaft extends out of the upper end face of the winding drum, the annular end face tooth is fixedly connected to an annular disk arranged near the lower end of the rotating shaft, a compression spring is sleeved on the telescopic shaft, two ends of the compression spring respectively abut against the annular step and the inner end of the large hole of the step hole, the latching tooth can be stuck in the tooth groove of the annular end face tooth, the rotating shaft is higher than the upper end face of the winding drum by a section, and after the handle is rotated, its free end can be placed on the top of the rotating shaft, and a spherical groove 1 is arranged at the bottom of the free end, a ball abuts in the spherical groove 1, and the ball abuts in the spherical groove 2 at the top of the rotating shaft, and the latching tooth disengages from the tooth groove when the free end of the handle is placed on the top of the rotating shaft.

[0007] Furthermore, the above-mentioned mounting frame includes a mounting beam and two magnetic meter seats, and the two ends of the mounting beam are respectively fixedly connected to the two magnetic meter seats. One side of the magnetic meter seat adsorbs the surface of the rail and is set to be consistent with the shape of the rail surface. The wire outlet hole is located in the middle of the front end of the mounting beam. A strip groove with an upper end opening is set in the mounting beam. The wire outlet hole is connected to the strip groove. A guide wheel is horizontally rotatably connected to the right side of the strip groove. A vertical redirecting wheel is set at the strip groove corresponding to the wire outlet hole. After the sample rope enters the wire outlet hole, it is successively wrapped around the redirecting wheel and the guide wheel and then out of the strip groove.

[0008] The beneficial effects of the utility model: compared with the prior art, the utility model winds the sample rope through the winding mechanism of the locking mechanism, and can be pulled out and fixed at a fixed length as needed. When measuring the length, only the pulled-out part needs to be measured, and there is no need to consider whether it is too long. The measurement efficiency and measurement accuracy are greatly improved, and the pulling is convenient and quick. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1 A schematic diagram of the installation structure of the control point positioning and setting out device for an existing railway line;

[0010] Figure 2 It is a schematic diagram of the installation side structure of the control point positioning and setting out device for an existing railway line;

[0011] Figure 3 It is a schematic diagram of the installation plan of the control point positioning and setting out device for the existing railway line;

[0012] Figure 4 is a schematic diagram of the top view of the mounting frame;

[0013] Figure 5 is a schematic diagram of a side cross-sectional structure of a mounting frame;

[0014] Figure 6 It is a structural schematic diagram of the winding mechanism;

[0015] Figure 7 It is a schematic diagram of the structure of the winding mechanism (the latching teeth are disengaged from the annular end face gear disc);

[0016] Figure 8 Schematic diagram of hypotenuse calculation. DETAILED DESCRIPTION

[0017] The utility model is further introduced below in conjunction with the accompanying drawings and specific embodiments.

[0018] Example 1: Figure 1 to Figure 7 As shown, the winding mechanism 4 for the control point positioning and staking out device includes a winding drum 401, a rotating shaft 402 and a winding handle 403. The rotating shaft 402 is fixedly connected to the mounting frame 1. The winding drum 401 is rotatably connected to the rotating shaft 402 through a bearing and is locked by a locking mechanism. The winding handle 403 is installed on the winding drum 401 and deviates from its axis by a certain distance. This structure can realize locked winding, which is convenient for accurate measurement of the length of the staking out rope.

[0019] The locking mechanism comprises a stepped hole 404, a telescopic shaft 405 and an annular end face gear 408 vertically arranged on the inner cylindrical arm of the winding drum 401. The stepped hole 404 is larger at the bottom and smaller at the top, and the telescopic shaft 405 is inserted therein. The telescopic shaft 405 is provided with an annular step 406 near the lower end, and a latching tooth 407 is provided at the lower end of the telescopic shaft 405. A detachable handle 406 is provided after the upper end of the telescopic shaft 405 extends out of the upper end surface of the winding drum 401. The annular end face gear 408 is fixedly connected to an annular disk 409 arranged near the lower end of the rotating shaft 402. A compression spring 410 is sleeved on the telescopic shaft 405, and the two ends of the compression spring 410 respectively abut against the annular step 406 and the inner end of the large hole of the stepped hole 404, and the latching tooth 407 can be snapped into the annular In the tooth groove of the end face tooth 408, the rotating shaft 402 is higher than the upper end surface of the winding drum 401 by a section. After the handle 406 is rotated, its free end can be placed on the top of the rotating shaft 402, and a spherical groove 411 is provided at the bottom of the free end. A ball 412 is abutted in the spherical groove 410, and the ball 412 abuts in the spherical groove 413 at the top of the rotating shaft 402. When the free end of the handle 414 can be placed on the top of the rotating shaft 402, the latch 407 disengages from the tooth groove, and the locking state is that the latch is engaged in the tooth groove. Under the action of the spring force, the locking state of the winding mechanism is always maintained. By pulling out the telescopic shaft and rotating it 90 degrees, the handle can be pressed against the roller to achieve the disengagement of the latch and the tooth groove. When the rotating shaft is rotated, the handle follows the rotation without interference.

[0020] Example 1: Figure 1 to Figure 7As shown, a device for positioning and staking out control points of an existing railway line comprises a mounting frame 1, a staking out rope 2, a protractor 3 and a winding mechanism 4. The mounting frame 1 is mounted on one side of a rail 5, the staking out rope 2 passes through a wire outlet hole 6 on the mounting frame 1, the wire outlet hole 6 is 16 mm away from the upper surface of the rail 5, the protractor 3 is horizontally mounted on the mounting frame 1 and the staking out rope 2 passes through the top of the protractor 3, the origin of the protractor 3 is located at the wire outlet hole 6, the staking out rope 2 passes through the mounting frame 1 and is wound around the winding mechanism 4 after being wound out of the mounting frame 1, and the free end of the staking out rope 2 is positioned to the control point on the adjacent rail 8 to be measured. According to the distance calculated by line spacing in the direction of the design angle (generally 90°) of the existing adjacent line and the switching line (new and rebuilt line), the rail line control point is accurately located, so as to determine the switching amount of the switching line (new and rebuilt line) and guide the switching construction; and it can also replace the square ruler to correct the direction of the sleeper, especially in the curved section, to reduce the gap between the gauge blocks and improve the assembly quality of the track row;

[0021] Through the simple installation of the device, the reference point can be quickly positioned, and then the sampling rope can be quickly pulled to the control point of the adjacent railway track, and the winding mechanism can be locked. The length of the stretched and straightened sampling rope is the length to be measured, which can greatly improve the measurement accuracy and reduce the measurement error. The test after installation is convenient and fast, and only one person is needed to complete the measurement, which reduces the labor cost. After the sampling rope is recovered, the structure is compact, the equipment is small and easy to carry. The sampling rope is stretched and measured with little deformation. The utility model can replace the square ruler to correct the direction of the sleeper, especially in curved sections, reduce the gap between the gauge blocks and improve the assembly quality of the track row.

[0022] In order to quickly achieve installation, the above-mentioned mounting frame 1 includes a mounting crossbeam 101 and two magnetic meter seats 102. The magnetic meter seats 102 are provided with a magnetic switch. By rotating the magnetic switch, the magnetic meter seats can produce a magnetic state and a non-magnetic state. The two ends of the mounting crossbeam 101 are respectively fixedly connected to the two magnetic meter seats 102. The magnetic meter seats 102 adsorb one side of the surface of the rail 5 and are set to be consistent with the rail surface of the rail 5. Through the magnetic meter seats, the mounting frame can be quickly installed, easy to assemble and disassemble, and convenient to use. The outlet hole 6 is located in front of the mounting crossbeam 101. In the middle of the end, a strip groove 103 with an upper opening is arranged in the mounting crossbeam 101, the wire outlet hole 6 is connected with the strip groove 103, and a guide wheel 104 is horizontally rotatably connected to the right side of the strip groove 103. A vertical redirecting wheel 105 is arranged at the strip groove 103 corresponding to the wire outlet hole 6. After the setting-out rope 2 enters from the wire outlet hole 6, it is successively wound around the redirecting wheel 105 and the guide wheel 104 and then winds out of the strip groove 103. The redirecting wheel and the guide wheel are arranged to facilitate the redirection and guiding of the setting-out rope and avoid jamming, which is beneficial to the rapid winding and rapid pulling of the winding mechanism.

[0023] Among them, the above-mentioned winding mechanism 4 includes a winding drum 401, a rotating shaft 402 and a winding handle 403. The rotating shaft 402 is fixedly connected to the mounting frame 1. The winding drum 401 is rotatably connected to the rotating shaft 402 through a bearing and is locked by a locking mechanism. The winding handle 403 is installed on the winding drum 401 and deviates from its axis by a certain distance. This structure can realize locked winding, which is convenient for accurate measurement of the length of the sampling rope.

[0024] Furthermore, the locking mechanism includes a stepped hole 404, a telescopic shaft 405 and an annular end face gear 408 vertically arranged on the inner cylindrical arm of the winding drum 401. The stepped hole 404 is larger at the bottom and smaller at the top, and the telescopic shaft 405 is inserted therein. The telescopic shaft 405 is provided with an annular step 406 near the lower end, and a latching tooth 407 is provided at the lower end of the telescopic shaft 405. A detachable handle 406 is provided after the upper end of the telescopic shaft 405 extends out of the upper end surface of the winding drum 401. The annular end face gear 408 is fixedly connected to an annular disk 409 arranged near the lower end of the rotating shaft 402. A compression spring 410 is sleeved on the telescopic shaft 405, and the two ends of the compression spring 410 respectively abut against the annular step 406 and the inner end of the large hole of the stepped hole 404, and the latching tooth 407 can be snapped into the annular step 406. In the tooth groove of the shaped end face tooth 408, the rotating shaft 402 is higher than the upper end surface of the winding drum 401 by a section. After the handle 406 is rotated, its free end can be placed on the top of the rotating shaft 402, and a spherical groove 411 is provided at the bottom of the free end. A ball 412 is abutted in the spherical groove 410, and the ball 412 abuts in the spherical groove 413 at the top of the rotating shaft 402. When the free end of the handle 414 can be placed on the top of the rotating shaft 402, the latch 407 disengages from the tooth groove, and the locking state is that the latch is engaged in the tooth groove. Under the action of the spring force, the locking state of the winding mechanism is always maintained. By pulling out the telescopic shaft and rotating it 90 degrees, the handle can be pressed against the roller to achieve the disengagement of the latch and the tooth groove. When the rotating shaft is rotated, the handle follows the rotation without interference.

[0025] In order to achieve a modular structure, the straight edge of the protractor 3 is provided with a positioning pin 7, and the positioning pin 7 is inserted into the mounting beam 101. The mounting beam 101 is horizontally provided with a support plate 106. The straight edge of the protractor 3 and the support plate are locked with screws. The disassembly structure is adopted to facilitate assembly, disassembly, storage and placement, reduce occupied space, and is more convenient to carry. The positioning pin can ensure the positioning accuracy of repeated use.

[0026] Furthermore, a camera 9 for photographing the angle on the protractor 3 is installed on the mounting frame 1, and the angle can be viewed remotely through the camera.

[0027] Furthermore, a rotating frame 11 is rotatably connected to the straight edge of the protractor 3 through a bearing 12, and a threading hole 13 facing the wire outlet hole 6 is provided on the rotating frame 11. A distance sensor 10 is provided on the rotating frame 11. The probe direction of the distance sensor 10 is kept parallel to the pulling direction of the sample rope 2. The rotating frame rotates with the pulling and rotation of the sample rope, and always keeps parallel and in the same direction, and can be connected to the rail surface of the adjacent guide rail to be measured for distance detection, with high detection accuracy.

[0028] The camera 9 and the distance sensor 10 are connected to the signal receiving end of the controller. The controller is provided with a wireless module, and the wireless module is connected to the mobile phone terminal. Through the mobile phone terminal, the distance situation can be detected in real time, which saves time and effort, greatly improves efficiency, and greatly reduces labor costs.

[0029] The utility model designs a switchable intelligent adsorption base (installation bracket), which is installed along the non-working side of the rail. At the same time, a protractor with an angle scale is arranged at the handwheel coil and the wire outlet of the threading hole (located 16 mm below the rail surface). After the wire is outlet, it is extended according to the distance converted from the line spacing in the direction of the design angle (generally 90°) of the existing adjacent line and the dialing line (newly rebuilt line), and the rail line control point is accurately located, so as to determine the dialing amount of the dialing line (newly rebuilt line) and guide the dialing construction.

[0030] Embodiment 2: A method for using an existing railway line control point positioning and staking out device, the method comprising: installing a protractor on a mounting beam, and according to the selected reference point position, installing the mounting beam on the non-working side of the rail surface through two magnetic table seats and ensuring that the mounting beam is parallel to the rail, and that the wire outlet hole is kept 16 mm from the top of the rail surface, adjusting the angle between the staking out rope and the protractor as needed, leading the free end of the staking out rope to the control point of the rail to be measured adjacent to the rail for positioning and straightening the staking out rope, locking the winding mechanism, measuring the length of the free end of the staking out rope after the threading hole, and calculating the distance L between the reference point and the control point, comparing the distance with the set distance, adjusting the position of the adjacent track through a track shifter, and after multiple measurements and shifting, until the design requirements are met; the length of the free end of the staking out rope after the threading hole is measured by a tape measure, that is, the control point is staked out using the distance stakeout principle in measurement and stakeout.

[0031] Among them, Figure 8 As shown, the distance L is calculated as follows: let a be the distance from the reference point of the track surface to the threading hole, which is a known value; b be the distance from the stakeout rope to the control point after it comes out of the threading hole; the angle measured by the stakeout rope on the protractor is C; then the angle D between the side corresponding to a and the side corresponding to b is 180°-C; according to the law of cosines, the length L from the reference point to the control point is the hypotenuse, and its length L²=a²+b²-2abcos(180°-C); L is obtained according to this formula.

[0032] The above description is only a specific implementation method of the present utility model, but the protection scope of the present utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present utility model, which should be included in the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be based on the protection scope of the claims.

Claims

1. A winding mechanism for a control point positioning and setting-out device, characterized in that: The invention comprises a winding drum (401), a rotating shaft (402) and a winding handle (403), wherein the rotating shaft (402) is fixedly connected to the mounting frame (1), the winding drum (401) is rotatably connected to the rotating shaft (402) via a bearing and is locked by a locking mechanism, and the winding handle (403) is mounted on the winding drum (401) and deviates from its axis by a certain distance.

2. The winding mechanism for a control point positioning and setting out device according to claim 1, characterized in that: The locking mechanism comprises a stepped hole (404) vertically arranged on a cylindrical arm inside the winding drum (401), a telescopic shaft (405) and an annular end face gear (408); the stepped hole (404) is larger at the bottom and smaller at the top, and the telescopic shaft (405) is inserted therein; an annular step (406) is arranged near the lower end of the telescopic shaft (405); a latching tooth (407) is arranged at the lower end of the telescopic shaft (405); a detachable handle (414) is arranged at the upper end of the telescopic shaft (405) after the upper end of the telescopic shaft (405) extends out of the upper end surface of the winding drum (401); the annular end face gear (408) is fixedly connected to an annular disk (409) arranged near the lower end of the rotating shaft (402); a compression spring (410) is sleeved on the telescopic shaft (405); The two ends of the spring (410) respectively abut against the inner ends of the large holes of the annular step (406) and the step hole (404); the latching teeth (407) can be inserted into the tooth grooves of the annular end face teeth (408); the rotating shaft (402) is higher than the upper end surface of the winding drum (401) by a certain length; after the handle (414) is rotated, its free end can be placed on the top of the rotating shaft (402); a spherical groove 1 (411) is provided at the bottom of the free end; a ball (412) abuts against the spherical groove 1 (411); the ball (412) abuts against the spherical groove 2 (413) at the top of the rotating shaft (402); and the latching teeth (407) are disengaged from the tooth grooves when the free end of the handle (414) is placed on the top of the rotating shaft (402).

3. The winding mechanism for a control point positioning and setting out device according to claim 1, characterized in that: The mounting frame (1) comprises a mounting crossbeam (101) and two magnetic meter bases (102). The two ends of the mounting crossbeam (101) are respectively fixedly connected to the two magnetic meter bases (102). One side of the magnetic meter base (102) adsorbs the surface of the rail (5) and is arranged to have a shape consistent with the rail surface of the rail (5). The wire outlet hole (6) is located in the middle of the front end of the mounting crossbeam (101). A strip groove (103) with an upper end opening is arranged in the mounting crossbeam (101). The wire outlet hole (6) is connected to the strip groove (103). The right side of the strip groove (103) is horizontally rotatably connected to a guide wheel (104). A vertical redirecting wheel (105) is arranged at the strip groove (103) corresponding to the wire outlet hole (6). After the setting-out rope (2) enters the wire outlet hole (6), it is wound around the redirecting wheel (105) and the guide wheel (104) in sequence and then winds out of the strip groove (103).

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