A hand-operated sand removal device
By designing a hand-operated sand removal device, combined with an operating mechanism and a floating connection device, the problem of low efficiency in cleaning accumulated sand on railway tracks has been solved, achieving a highly efficient and easy-to-operate sand removal effect, and ensuring the safety and stability of train operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 陕西风润智能制造研究院有限公司
- Filing Date
- 2026-05-21
- Publication Date
- 2026-07-31
AI Technical Summary
In existing technologies, cleaning sand accumulation on railway tracks relies on manual labor or small machinery, resulting in high labor intensity, low efficiency in sand removal, difficulty in timely processing, and impact on train operation safety.
A hand-operated sand removal device was designed, including a working mechanism, a hand-operated mechanism, and a floating connection device. The hand-operated mechanism controls the movement along the track, and the screw conveyor and sand pumping device remove sand and dust from the track. The floating connection device isolates vibration, improves removal efficiency, and reduces the labor intensity of operators.
It improved the efficiency of sand removal, reduced the labor intensity of operators, and achieved a highly efficient and easy-to-operate sand removal effect, ensuring the smoothness and safety of train operation.
Smart Images
Figure CN122485196A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of sand removal technology, specifically to a hand-held sand removal device. Background Technology
[0002] Due to the influence of the natural environment and wind and sand activity, some railway lines suffer from significant sand accumulation problems. In railway track structures, two parallel steel rails are fixedly installed on sleepers. In areas with frequent wind and sand activity, sand particles carried by strong winds easily deposit in the track area, forming sand accumulation. In severe cases, this can bury the wheel-rail (wheel and rail) contact surface or completely cover the track structure. Sand particles remaining at the wheel-rail contact interface accelerate the wear of the rail surface and reduce the smoothness of train operation, posing a potential impact on train safety.
[0003] In existing technologies, the removal of track sand mainly relies on manual labor or small machinery. This method suffers from high labor intensity for workers and low sand removal efficiency, making it difficult to achieve timely treatment of track sand accumulation. Therefore, there is an urgent need for a sand removal device that is highly integrated, easy to operate, and has a significant sand removal effect. Summary of the Invention
[0004] This application provides a hand-operated sand removal device to solve problems such as high labor intensity for operators and low efficiency in removing accumulated sand.
[0005] This application provides a hand-operated sand removal device for removing sand and dust from a track. The hand-operated sand removal device includes a working mechanism, a hand-operated mechanism, and a floating connection device. Along the forward direction of the hand-operated sand removal device, the hand-operated mechanism is located behind the working mechanism. One end of the floating connection device is fixed to the front of the hand-operated mechanism, and the other end is hinged to the rear of the working mechanism. The handrail mechanism is used by the operator to control the handrail mechanism to move along the track and to push the working mechanism to move along the track; The operating mechanism includes a screw conveyor, a sand dredging device, a speed reduction transmission mechanism, and a first power source. The sand dredging device is fixed on the input shaft of the speed reduction transmission mechanism, and the screw conveyor is fixed on the output shaft of the speed reduction transmission mechanism. The first power source is connected to the input shaft of the speed reduction transmission mechanism to drive the input shaft of the speed reduction transmission mechanism to rotate. The input shaft of the speed reduction transmission mechanism drives the sand dredging device to rotate, and through the speed reduction transmission mechanism, drives the output shaft of the speed reduction transmission mechanism and the screw conveyor to rotate.
[0006] Optionally, the sand dredging device includes a sand dredging pipe and sand dredging blades arranged around the circumference of the sand dredging pipe, and the sand dredging blades and the sand dredging pipe are integrally formed.
[0007] Optionally, the reduction transmission mechanism is a worm gear reducer, and the sand dredging pipe is fixed on the input shaft of the worm gear reducer; The spiral conveying device includes multiple first spiral blades, multiple second spiral blades, and a spiral shaft. The spiral shaft is connected to the output shaft of the worm gear reducer. The multiple first spiral blades are respectively fixed in the central region of the spiral shaft, and the multiple second spiral blades are respectively fixed in the two end regions near the spiral shaft. The size of the first spiral blades is larger than the size of the second spiral blades.
[0008] Optionally, the working mechanism further includes a cover, the spiral shaft is located within the receiving space formed by the cover, and the two ends of the spiral shaft are fixed to the left and right sides of the cover; The outer walls on the left and right sides of the shell cover are respectively provided with height adjustment mechanisms, which are used to adjust the distance between the working mechanism and the top surface of the rail on the track.
[0009] Optionally, the height adjustment mechanism includes a fixed frame and a lifting device; The fixing frame includes a fixing plate and a guide channel. The guide channel is fixed on the fixing plate and at least one positioning hole is provided on the guide channel. The lifting device includes a lifting rod with multiple through holes along its longitudinal direction. The lifting rod is slidably inserted into the guide channel. By passing a first fixing member through the positioning hole and any of the through holes on the lifting rod, the height of the lifting rod relative to the fixing frame can be adjusted.
[0010] Optionally, the lifting device further includes a mounting plate, which is fixed to one end of the lifting rod near the top surface of the rail, and the length direction of the mounting plate is perpendicular to the length direction of the lifting rod; Limiting wheels are respectively provided at the left and right ends near the mounting plate. When the hand-held sand removal device is in operation, the limiting wheels travel on the top surface of the rail. A first mounting rod is provided at the center of the mounting plate. When the hand-held sand removal device is not in operation, the first mounting rod is used to install the beach wheel.
[0011] Optionally, a second mounting rod is provided on the top plate of the shell cover. When the hand-held sand removal device is in operation, the second mounting rod is used to install the beach wheel to increase the counterweight of the working mechanism.
[0012] Optionally, sand-shoveling plates are fixed to the front ends of the left and right sides of the shell cover, and the lower surface of the sand-shoveling plate has a recessed step. When the hand-held sand removal device is in operation, the bottom edge of the step abuts against the top surface of the rail.
[0013] Optionally, the working mechanism further includes a sand discharge pipe, the bottom end of which is provided with an arc-shaped guide groove, the arc-shaped guide groove being located in the horizontal plane; A mounting bracket is provided on the rear side of the shell cover. The sand outlet pipe is fixed to the mounting bracket by a second fixing member. The second fixing member passes through the arc-shaped guide groove and is screwed into the fixing hole on the mounting bracket. When the second fixing member is loosened, the sand outlet pipe rotates along the arc-shaped guide groove to adjust the direction. When it is tightened, the direction is locked.
[0014] Optionally, the floating connection device includes a triangular bracket, a crossbeam, a shock absorber, a first floating shaft, and a second floating shaft; The top of the triangular bracket is hinged to the middle of the crossbeam via the first floating shaft, and the bottom side of the triangular bracket is fixed to the front of the handrail mechanism. The side rods on the left and right sides of the triangular bracket are flexibly connected to the crossbeam through the vibration damper; The left and right ends of the crossbeam are respectively hinged to the rear of the working mechanism via a second floating shaft.
[0015] Compared with the prior art, this application has the following advantages: This application provides a hand-operated sand removal device for removing sand and dust from a track. The device includes a working mechanism, a hand-operated mechanism, and a floating connecting device. Along the forward direction of the hand-operated sand removal device, the hand-operated mechanism is located behind the working mechanism. One end of the floating connecting device is fixed to the front of the hand-operated mechanism, and the other end is hinged to the rear of the working mechanism. The hand-operated mechanism is operated by a worker to control its movement along the track and to push the working mechanism along the track. The working mechanism includes a screw conveyor, a sand-dredging device, a speed reduction transmission mechanism, and a first power source. The sand-dredging device is fixed to the input shaft of the speed reduction transmission mechanism, and the screw conveyor is fixed to the output shaft of the speed reduction transmission mechanism. The first power source is connected to the input shaft of the speed reduction transmission mechanism to drive the input shaft of the speed reduction transmission mechanism to rotate. The input shaft of the speed reduction transmission mechanism drives the sand-dredging device to rotate, and through the speed reduction transmission mechanism, drives the output shaft of the speed reduction transmission mechanism and the screw conveyor to rotate.
[0016] This application provides a hand-operated sand removal device, which connects the working mechanism and the hand-operated mechanism through a floating connection device. The operator operates the hand-operated mechanism to move along the track, which can push the working mechanism to move on the track. The working mechanism removes the sand accumulated on the track, which can improve the sand removal efficiency. Moreover, the operator only needs to operate the hand-operated mechanism, which is convenient to operate and reduces the labor intensity. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of a hand-held sand removal device provided in an embodiment of this application.
[0018] Figure 2 yes Figure 1 A schematic diagram of the working mechanism.
[0019] Figure 3 yes Figure 2 A sectional view.
[0020] Figure 4 yes Figure 1 A schematic diagram of the floating connection device.
[0021] Figure 5 yes Figure 1 A schematic diagram of the central handrail mechanism.
[0022] Figure label: 1: Operating mechanism; 11: Worm gear reducer; 111: First helical blade; 112: Second helical blade; 113: Helical shaft; 12: Sand dredging device; 121: Sand dredging pipe; 122: Sand dredging blades; 13: The first engine; 14: Shell cover; 141: Second mounting rod; 142: Sand scraper plate; 1421: Lowering step; 143: Mounting bracket; 15: Height adjustment mechanism; 151: Fixing frame; 1511: Fixing plate; 1512: Guide channel; 1512-1: Positioning hole; 152: Lifting device; 1521: Lifting rod; 1521-1: Through hole; 1522: Mounting plate; 1522-1: First mounting rod; 16: Limiting wheel; 17: Beach wheel; 18: Sand outlet pipe; 181: Arc-shaped guide groove; 2: Hand-held mechanism; 21: Second engine; 3: Floating connection device; 31: Triangular bracket; 32: Crossbeam; 33: Vibration damper; 34: First floating shaft; 35: Second floating shaft; 4: Track. Detailed Implementation
[0023] Many specific details are set forth in the following description to provide a full understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of this application; therefore, this application is not limited to the specific embodiments disclosed below.
[0024] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0025] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0026] In areas with frequent sandstorms, such as Xinjiang, strong winds easily carry sand particles that deposit in railway areas, forming accumulated sand. In severe cases, this can bury the wheel-rail contact surface or completely cover the track structure. Sand particles remaining at the wheel-rail contact interface accelerate rail surface wear and reduce train stability, posing a potential impact on train safety. Current technologies primarily rely on manual labor or small machinery for cleaning accumulated sand from tracks. This method suffers from high labor intensity for workers and low sand removal efficiency, making it difficult to achieve timely treatment of track sand accumulation. Therefore, there is an urgent need for a sand removal device with high integration, ease of operation, and significant sand removal effect.
[0027] Next, the specific structure of a hand-held sand removal device provided in this application will be described in detail with reference to the accompanying drawings.
[0028] Figure 1 This is a schematic diagram of the structure of a hand-held sand removal device provided in an embodiment of this application. Figure 2 yes Figure 1 A schematic diagram of the working mechanism. Figure 3 yes Figure 2 A sectional view. Figure 4 yes Figure 1 A schematic diagram of the floating connection device. Figure 5 yes Figure 1 A schematic diagram of the central handrail mechanism.
[0029] like Figure 1 As shown, this application provides a hand-held sand removal device, which is used to remove sand and dust from the track 4. The purpose of removing sand and dust from the track 4 is to clean the sand and dust on the top surface of the track and the area between the rails, that is, to clean the sand and dust on the train's travel path.
[0030] The hand-operated sand removal device includes: a working mechanism 1, a hand-operated mechanism 2, and a floating connecting device 3. Along the forward direction of the hand-operated sand removal device, the hand-operated mechanism 2 is located behind the working mechanism 1. One end of the floating connecting device 3 is fixed to the front of the hand-operated mechanism 2, and the other end is hinged to the rear of the working mechanism 1. The hand-operated mechanism 2 is used for operation by the operator to control its movement along the track 4 and to push the working mechanism 1 to move along the track 4.
[0031] Specifically, the hand-operated sand removal device moves forward along track 4, with the working mechanism 1 in front and the hand-operated mechanism 2 behind, and the working mechanism 1 and the hand-operated mechanism 2 connected by a floating connecting device 3. One end of the floating connecting device 3 is fixed to the front of the hand-operated mechanism 2, which is located near the working mechanism 1. The floating connecting device 3 can be fixed to the front of the hand-operated mechanism 2 by screws, welding, or bolts. In this embodiment, the hand-operated mechanism 2 is a hand-operated tracked vehicle.
[0032] The rear of the handrail mechanism 2 is located away from the working mechanism 1, and the rear of the handrail mechanism 2 is equipped with a handrail operating lever and an operating table, etc., allowing the operator to control the handrail mechanism 2 via the handrail operating lever and the operating table. Furthermore, as... Figure 5 As shown, the hand-held mechanism 2 is equipped with a second power source, namely a second engine 21, which drives the hand-held mechanism 2 to move. In other words, the second engine 21 provides power to the hand-held sand removal device. The control panel is equipped with a gear control button to control the speed of the hand-held mechanism 2, and also includes a switch for controlling the lighting, etc. These are not listed here.
[0033] When the second engine 21 is started, the operator manipulates the handrail to control the direction of movement of the handrail mechanism 2, thereby controlling the handrail mechanism 2 to move along the track 4. The handrail mechanism 2 travels on the sleepers between the two tracks 4. Furthermore, the working mechanism 1 is located in front of the handrail mechanism 2. The movement of the handrail mechanism 2 on the track 4 will push the working mechanism 1 in front to travel on the top surface of the track 4. It should be noted that whether the handrail mechanism 2 travels on the sleepers or the working mechanism 1 travels on the top surface of the track 4, both can be understood as traveling on the track 4.
[0034] The other end of the floating connection device 3 is hinged to the rear of the working mechanism 1. The rear of the working mechanism 1 is the part close to the handrail mechanism 2, specifically the rear of the working mechanism 1 is close to the front of the handrail mechanism 2.
[0035] In this embodiment of the application, the working mechanism and the hand-held mechanism are connected by a floating connection device. The device has a high degree of integration and is easy for operators to use, i.e., it is highly operable.
[0036] like Figure 4 As shown, the floating connection device 3 includes a triangular bracket 31, a crossbeam 32, a shock absorber 33, a first floating shaft 34, and a second floating shaft 35; the top of the triangular bracket 31 is hinged to the middle of the crossbeam 32 through the first floating shaft 34, and the bottom side of the triangular bracket 31 is fixed to the front of the handrail mechanism 2; the side rods on the left and right sides of the triangular bracket 31 are flexibly connected to the crossbeam 32 through the shock absorber 33; the left and right ends of the crossbeam 32 are hinged to the rear of the working mechanism 1 through the second floating shaft 35.
[0037] The floating connection device is used to flexibly connect the handrail mechanism and the working mechanism indirectly. Specifically, the bottom side of the triangular bracket 31 is fixed to the front of the handrail mechanism, and the left and right ends of the crossbeam 32 are respectively hinged to the rear of the working mechanism through the second floating shaft 35. The purpose of the floating connection device is to isolate vibration, that is, to isolate the vibration generated by the handrail mechanism during operation, so that when the handrail mechanism is in operation, the vibration it generates will not be transmitted to the working mechanism, and the working mechanism can operate smoothly.
[0038] The top of the triangular bracket 31 is hinged to the middle of the crossbeam 32 via the first floating shaft 34, that is, the triangular bracket 31 and the crossbeam 32 are hingedly connected. Furthermore, one side of the crossbeam 32, which is the side closest to the triangular bracket 31, is flexibly connected to the side rods on the left and right sides of the triangular bracket 31 via two shock absorbers.
[0039] The shock absorber is a spring shock absorber. Taking the left side rod of the triangular bracket 31 as an example, one end of the spring shock absorber is flexibly connected to a position near the left end of the crossbeam 32, and the other end is flexibly connected to a position near the middle of the left side rod. The right side rod is flexibly connected to the crossbeam 32 via the spring shock absorber, similar to the flexible connection on the left side. Of course, the shock absorber can also be of other types; examples are not provided here, as long as they meet the operational requirements.
[0040] This can be understood as the floating connection device effectively isolating the vibrations generated by the movement of the hand-held mechanism, reducing the transmission of vibrations to the working mechanism, and ensuring that the working mechanism remains close to the working surface, thus ensuring the stable operation of the hand-held sand removal device. Furthermore, the vibration dampers 33 arranged in the left-right direction on the floating connection device 3 prevent the working mechanism from being tilted when the deflection angle is too large, ensuring smooth operation of the working mechanism.
[0041] Furthermore, the operating mechanism and the handrail mechanism are connected via the floating connection device. In emergency situations, the second floating shaft 35 can be quickly disconnected from the operating mechanism, leaving the operating mechanism and the handrail mechanism in a disconnected state. This allows for the independent transfer of the operating mechanism and the handrail mechanism, improving transport efficiency. The operating mechanism can be transferred using manual towing, tracked vehicle pushing, or sand motorcycle towing.
[0042] like Figures 2-3 As shown, the working mechanism 1 includes a screw conveyor, a sand dredging device 12, a speed reduction transmission mechanism, and a first power source. The sand dredging device 12 is fixed on the input shaft of the speed reduction transmission mechanism, and the screw conveyor is fixed on the output shaft of the speed reduction transmission mechanism. The first power source is connected to the input shaft of the speed reduction transmission mechanism to drive the input shaft of the speed reduction transmission mechanism to rotate. The input shaft of the speed reduction transmission mechanism drives the sand dredging device 12 to rotate, and drives the output shaft of the speed reduction transmission mechanism and the screw conveyor to rotate through the speed reduction transmission mechanism.
[0043] Specifically, the first power source is a first engine 13, mounted on top of the working mechanism 1. A drive wheel is fixed to the output shaft of the first engine 13, and a driven wheel is fixed to one end of the input shaft of the reduction transmission mechanism. The drive wheel and the driven wheel are connected by two V-belts. A tensioning wheel is provided on the slack side of the belts of the drive wheel and the driven wheel. The tensioning wheel is used to adjust the tension of the belts to prevent slippage and increase the wrap angle between the belt and the pulley. The wrap angle refers to the central angle corresponding to the arc length of the contact between the belt and the pulley. When the first engine 13 starts, the drive wheel drives the driven wheel to rotate via the belt, thereby driving the input shaft of the reduction transmission mechanism to rotate.
[0044] Furthermore, the spiral conveyor and the sand-dredging device 12 are connected via the speed reduction transmission mechanism. Specifically, the sand-dredging device 12 is mounted on the input shaft of the speed reduction transmission mechanism, thus fixing the sand-dredging device 12 to the input shaft. Rotation of the input shaft of the speed reduction transmission mechanism will drive the sand-dredging device 12 fixed thereon to rotate. The spiral conveyor is fixed to the output shaft of the speed reduction transmission mechanism, specifically, the output shaft of the spiral conveyor can be fixed to the output shaft of the speed reduction transmission mechanism via a coupling. Of course, the output shaft of the speed reduction transmission mechanism is the same as the output shaft of the spiral conveyor.
[0045] When the first engine 13 starts, the driving wheel drives the driven wheel to rotate via the belt, which in turn drives the input shaft of the reduction transmission mechanism and the sand dredging device 12 to rotate. The input shaft of the reduction transmission mechanism drives the output shaft of the reduction transmission mechanism and the screw conveyor to rotate.
[0046] In this embodiment of the application, the working mechanism 1 of the hand-held sand removal device is equipped with the first engine 13, and the hand-held mechanism 2 is equipped with the second engine 21. That is, the hand-held sand removal device adopts two independent engine systems to achieve power decoupling, flexible and adjustable walking speed, and can match multiple speed ratios with the working speed to adapt to various thicknesses of sand accumulation.
[0047] The sand dredging device 12 includes a sand dredging pipe 121 and sand dredging blades 122 arranged circumferentially around the sand dredging pipe, wherein the sand dredging blades 122 and the sand dredging pipe 121 are integrally formed. Specifically, the sand dredging device 12 includes the sand dredging pipe 121 and the sand dredging blades 122, and the sand dredging pipe 121 and the sand dredging blades 122 are integrally formed. The sand dredging blades 122 are arranged circumferentially around the sand dredging pipe 121, and the number and size of the sand dredging blades 122 can be determined according to the specific working conditions, and no specific restrictions are imposed here.
[0048] The speed reduction transmission mechanism is a worm gear reducer 11, and the sand suction pipe 121 is fixed on the input shaft of the worm gear reducer 11. The screw conveying device includes multiple first screw blades 111, multiple second screw blades 112, and a screw shaft 113. The screw shaft 113 is connected to the output shaft of the worm gear reducer. The multiple first screw blades 111 are respectively fixed in the central region of the screw shaft 113, and the multiple second screw blades 112 are respectively fixed in the two end regions near the screw shaft 113. The size of the first screw blades 111 is larger than the size of the second screw blades 112.
[0049] Specifically, the reduction transmission mechanism is a worm gear reducer 11, the middle part of the sand dredging pipe 121 is hollow and the pipe wall of the sand dredging pipe 121 is provided with a mounting hole, the input shaft of the worm gear reducer passes through the middle part of the sand dredging pipe 121 and is inserted into the mounting hole by a pin to fix the sand dredging device 12 on the input shaft of the worm gear reducer.
[0050] The spiral conveying device includes multiple first spiral blades 111, multiple second spiral blades 112, and a spiral shaft 113. The spiral shaft 113 is integrally formed with the output shaft of the worm gear reducer, which can be understood as the spiral shaft 113 being the output shaft of the worm gear reducer. Moreover, the number of first spiral blades 111 and second spiral blades 112 can be determined according to specific working conditions.
[0051] The first helical blade 111 can be fixed to the central region of the helical shaft 113 by bolts, screws, etc., and the second helical blade 112 can be fixed to the end region near the helical shaft 113 by bolts, screws, etc. Moreover, the size of the first helical blade 111 is larger than the size of the second helical blade 112. The smaller second helical blade 112 is fixed to the end region near the helical shaft 113, which can avoid the fasteners on the rail. The second helical blade 112 can remove sand accumulated above the fasteners and also avoid damage to the fasteners.
[0052] The working mechanism also includes a cover 14, the spiral shaft 113 is located in the accommodating space formed by the cover 14, and the two ends of the spiral shaft 113 are fixed on the left and right sides of the cover; the outer walls of the left and right sides of the cover are respectively provided with height adjustment mechanisms 15, which are used to adjust the distance between the working mechanism and the top surface of the rail on the track.
[0053] Specifically, the working mechanism also includes the housing 14, which comprises a top plate, a rear plate, and left and right side plates; that is, the housing 14 is not a completely closed structure. The top plate, the rear plate, and the left and right side plates form an accommodating space, and the spiral shaft 113 is installed within this accommodating space. Specifically, both ends of the spiral shaft 113 are fixed to the left and right side plates of the housing, thus securing both ends of the spiral shaft 113 to the left and right sides of the housing.
[0054] Furthermore, the height adjustment mechanism 15 is respectively provided on the outer wall of the side plate on the left and right sides of the shell cover. The height adjustment mechanism 15 can adjust the distance between the working mechanism and the top surface of the rail, thereby enabling the working mechanism to adapt to different types and sizes of rails.
[0055] The height adjustment mechanism 15 includes a fixed frame 151 and a lifting device 152. The fixed frame 151 includes a fixed plate 1511 and a guide channel 1512. The guide channel 1512 is fixed on the fixed plate 1511, and at least one positioning hole 1512-1 is provided on the guide channel 1512. The lifting device 152 includes a lifting rod 1521. The lifting rod 1521 is provided with multiple through holes 1521-1 along the longitudinal direction. The lifting rod 1521 is slidably inserted into the guide channel 1512. By passing a first fixing member through the positioning hole 1512-1 and any through hole 1521-1 on the lifting rod 1521, the height of the lifting rod 1521 relative to the fixed frame 151 is adjusted.
[0056] A height adjustment mechanism 15 is installed on each of the left and right sides of the cover 14. The height adjustment mechanism 15 includes a fixing frame 151 and a lifting device 152. In this embodiment, the fixing frame 151 includes a fixing plate 1511 and two guide channels 1512. The fixing plate 1511 can be fixed to the outer wall of the side plate of the cover 14 by welding, bolts, or other means. The two guide channels 1512 are fixed to the two sides near the fixing plate 1511 by welding, bolts, or other means. Alternatively, the two guide channels 1512 and the fixing plate 1511 can be integrally formed. Each guide channel 1512 has at least one positioning hole 1512-1.
[0057] The lifting device 152 includes lifting rods 1521, the number of which is the same as the number of guide channels 1512. Each lifting rod 1521 has multiple through holes 1521-1 along its length. During assembly, the lifting rods 1521 are inserted into the guide channels 1512 from bottom to top or top to bottom and can slide up and down along the guide channels 1512. When the lifting rod 1521 slides to the target height, a first fixing component (such as a pin or bolt) is sequentially passed through the positioning hole 1512-1 on the guide channel 1512 and the corresponding through hole 1521-1 on the lifting rod 1521 to restrict the axial movement of the lifting rod 1521, thus locking the height. By selecting different heights of the through holes 1521-1 on the lifting rod 1521 to mate with the positioning holes 1512-1, multi-level height adjustment of the lifting rod 1521 relative to the fixing frame 151 can be achieved.
[0058] The lifting device 152 also includes a mounting plate 1522, which is fixed to one end of the lifting rod 1521 near the top surface of the rail, and the length direction of the mounting plate 1522 is perpendicular to the length direction of the lifting rod 1521. Limiting wheels 16 are respectively provided near the left and right ends of the mounting plate 1522. When the hand-held sand removal device is in operation, the limiting wheels 16 travel on the top surface of the rail. A first mounting rod 1522-1 is provided at the center of the mounting plate 1522. When the hand-held sand removal device is not in operation, the first mounting rod 1522-1 is used to install the beach wheel 17.
[0059] Specifically, the lifting device 152 also includes a mounting plate 1522, which is fixedly connected to one end of the lifting rod 1521 near the top surface of the rail. In the installation direction, the length direction of the mounting plate 1522 is perpendicular to the length direction of the lifting rod 1521. To meet the requirements of rail operations, limit wheels 16 are respectively installed at the left and right ends of the mounting plate 1522, which are located along the length direction of the mounting plate 1522. When the hand-held sand removal device performs sand removal operations, these two limit wheels 16 roll along the top surface of the rail, ensuring that the hand-held sand removal device travels stably along the rail.
[0060] Meanwhile, to facilitate the movement of the hand-held sand removal device when not in operation, a first mounting rod 1522-1 is also provided at the center of the mounting plate 1522. When the hand-held sand removal device is not in operation, the beach wheel 17 can be quickly installed through the first mounting rod 1522-1, allowing the device to be pushed or moved on non-track surfaces such as beaches and roads. A threaded through hole 1521-1 is provided at the center of the beach wheel 17, and the first mounting rod 1522-1 is provided with a thread that matches the threaded through hole 1521-1. The beach wheel 17 is screwed and fixed to the first mounting rod 1522-1 by a threaded connection.
[0061] When the hand-operated sand removal device is in operation, the lifting rod 1521 descends relative to the fixed frame 151, causing the limiting wheel 16 to contact and travel along the top surface of the rail. At this time, the beach wheel 17 is mounted on the second mounting rod 141. The distance between the working mechanism and the top surface of the rail can be adjusted according to the thickness of the accumulated sand and to accommodate different types and sizes of rails. This allows the limiting wheel 16 to travel along the rail, ensuring directional consistency and precise movement of the working mechanism along the track, avoiding lateral deviation that could lead to missed sand removal or scraping of the working mechanism.
[0062] When the hand-operated sand removal device is not in operation, the lifting rod 1521 rises relative to the fixed frame 151, lifting the limiting wheel 16 away from the top surface of the rail, and installing the beach wheel 17 through the first mounting rod 1522-1, so that the beach wheel 17 touches the ground, so that the device can move on the ground outside the track 4.
[0063] A second mounting rod 141 is provided on the top plate of the shell cover 14. When the hand-held sand removal device is in operation, the second mounting rod 141 is used to install the beach wheel 17 to increase the counterweight of the working mechanism.
[0064] The second mounting rod 141 is fixed to the top plate of the cover 14 by bolts, welding, or other means. When the hand-held sand removal device is in operation, the limiting wheel 16 contacts and travels along the top surface of the rail. At this time, the beach wheel 17 is installed on the second mounting rod 141. Specifically, the second mounting rod 141 is provided with a thread that matches the threaded through hole 1521-1 of the beach wheel 17. The beach wheel 17 is screwed and fixed to the second mounting rod 141 by a threaded connection. When the beach wheel 17 is installed on the second mounting rod 141, the counterweight of the working mechanism 1 can be increased. In this embodiment, there are two beach wheels 17. When the hand-held sand removal device is in operation, both beach wheels 17 are installed on the second mounting rod 141.
[0065] When the hand-held sand removal device is being transported, the beach wheel 17 is mounted on the first mounting rod 1522-1, allowing it to pass through various terrains such as sand dunes, deserts, and highways. When the hand-held sand removal device is operating between railway tracks, the beach wheel 17 can be quickly removed from the first mounting rod 1522-1 and mounted on the second mounting rod 141 to act as a counterweight, ensuring the stability of the center of gravity of the operating mechanism 1 during operation without increasing the transport weight when not in operation.
[0066] The front ends of the left and right sides of the shell cover 14 are respectively fixed with sand-shoveling plates 142. The lower surface of the sand-shoveling plate 142 has a sunken step 1421. When the hand-held sand removal device is in operation, the bottom edge of the step abuts against the top surface of the rail.
[0067] A sand-shoveling plate 142 is fixedly installed at the front end of each of the left and right sides of the cover 14. Each sand-shoveling plate 142 has a recessed step 1421 on its lower surface, making the bottom edge of the sand-shoveling plate 142 lower than other parts. The recessed steps 1421 are located on the left and right sides away from the cover 14, meaning they are located on the outer side of the sand-shoveling plate 142 and are partially installed along the length of the sand-shoveling plate 142. When the hand-operated sand removal device is in operation (i.e., the limiting wheel travels along the top surface of the rail), the bottom edge of the recessed step 1421 contacts and abuts against the top surface of the rail. As the device moves forward, this bottom edge can shovel up the sand covering the top surface of the rail and guide it to the inside or sides of the rail, thereby cleaning the top surface of the rail.
[0068] The sand-shoveling plate 142 can be made of non-metallic materials, such as polyoxymethylene (POM) or polyurethane (PU). Using a non-metallic material avoids damaging the top surface of the rail, and the bottom edge of its recessed step 1421 forms an acute angle with the top surface of the rail, which facilitates sand removal. The sand-shoveling plate 142 is located in front of the limiting wheel 16, thus prioritizing the removal of sand from the rail surface during the movement of the sand removal device, ensuring a clean travel path for the limiting wheel 16.
[0069] The sand removal device also includes a lubrication mechanism located behind the sand-shoveling plate 142. When the accumulated sand on the rail surface and fastener surface is cleaned (e.g., by sensor detection or preset delay), the lubrication mechanism automatically starts and applies lubricating oil to the rail surface and fastener surface through an oil nozzle or oil brush located at the bottom of the device.
[0070] The operating mechanism 1 also includes a sand outlet pipe 18, the bottom end of which is provided with an arc-shaped guide groove 181, which is located in the horizontal plane; a mounting bracket 143 is provided on the rear side of the cover 14, and the sand outlet pipe 18 is fixed to the mounting bracket 143 by a second fixing member, which passes through the arc-shaped guide groove 181 and is screwed into the fixing hole on the mounting bracket 143; when the second fixing member is loosened, the sand outlet pipe 18 rotates along the arc-shaped guide groove 181 to adjust the direction, and when it is tightened, the direction is locked.
[0071] Specifically, a mounting bracket 143 and a support plate are provided on the rear side of the cover 14. The mounting bracket 143 is used to install the sand discharge pipe 18, and the support plate is used to install the first engine 13. The sand discharge pipe 18 has a certain curvature, which can be set according to specific working conditions. The main body of the sand discharge pipe 18 has a semi-enclosed structure, that is, its cross-section is C-shaped or U-shaped, lacking a complete side wall. A detachable side plate is provided at the position of the missing side wall. The side plate is fixedly connected to the main body of the sand discharge pipe 18 by bolts or movable buckles. When the hand-held sand removal device is in operation and the sand discharge volume is relatively large, the side plate can be removed to allow for faster sand discharge.
[0072] Furthermore, multiple arc-shaped guide grooves 181 are formed circumferentially on the outer peripheral wall of the bottom end of the sand outlet pipe 18. These arc-shaped guide grooves 181 are entirely located within a horizontal plane, meaning their arc-shaped extension direction is parallel to the horizontal plane. Correspondingly, fixing holes are provided on the mounting bracket 143. During assembly, the sand outlet pipe 18 is placed in the corresponding position on the mounting bracket 143, allowing the second fixing component (such as a bolt or screw) to pass through the arc-shaped guide grooves 181 and be screwed into the fixing holes of the mounting bracket 143.
[0073] When it is necessary to adjust the sand discharge direction, simply loosen the second fixing member appropriately. At this time, the sand discharge pipe 18 can rotate freely along the arc-shaped guide groove 181. The sand discharge pipe 18 can rotate around its own axis within the angle range defined by the arc-shaped guide groove 181, for example, 10° to 30°, to adjust the orientation of the sand discharge port. This is a fine adjustment of the sand discharge port. If the fine adjustment angle still cannot meet the orientation requirements of the sand discharge port, the second fixing member can be removed, and the orientation of the sand discharge port can be readjusted. The ratio can be adjusted 180° in the opposite direction. Since the arc-shaped guide groove 181 is located in the horizontal plane, the rotation of the sand discharge pipe 18 is a horizontal angle adjustment. The orientation of the sand discharge port is usually consistent with the wind direction during operation. If there is no wind during operation, the orientation of the sand discharge port is opposite to the position of the first engine 13 to avoid sand and dust falling onto the first engine 13.
[0074] After the sand outlet pipe 18 is rotated to the desired direction, tighten the second fixing member again so that the head of the second fixing member presses against the wall of the sand outlet pipe 18 or the edge of the arc-shaped guide groove 181, thereby locking the sand outlet pipe 18 and preventing it from deflecting accidentally during use.
[0075] The above describes a hand-operated sand removal device provided in this application. The working mechanism and the hand-operated mechanism are connected by a floating connection device. The operator controls the hand-operated mechanism to move along the track, which can drive the working mechanism to move on the track. The working mechanism removes the accumulated sand on the track, which can improve the efficiency of sand removal. Moreover, the operator only needs to operate the hand-operated mechanism, which is convenient to operate and reduces the labor intensity.
[0076] It should be noted that although several structures, components, or units for implementing the relevant functions have been mentioned in the detailed description above, this division is not mandatory. In fact, according to the specific embodiments of this application, the features and functions of two or more structures, components, or units described above can be embodied in one structure, component, or unit. Conversely, the features and functions of one structure, component, or unit described above can be further divided and embodied by multiple components, structures, or units.
[0077] Furthermore, although the various components of the components or apparatus in this application and the mounting arrangements between them are described in a specific order in the accompanying drawings, this does not require or imply that the components or apparatus must be designed according to that specific component or mounting arrangement, or that all the components shown must be included to achieve the desired result. Additional or alternative components may be omitted, multiple components may be combined into one component to achieve the corresponding function, and / or a component may be decomposed into multiple components to achieve the corresponding function, etc.
[0078] Although this application discloses preferred embodiments as described above, it is not intended to limit this application. Any person skilled in the art can make possible changes and modifications without departing from the spirit and scope of this application. Therefore, the scope of protection of this application should be determined by the scope defined in the claims of this application.
Claims
1. A hand-operated sand removal device, characterized in that, The hand-operated sand removal device is used to remove sand and dust on the track. It includes: a working mechanism, a hand-operated mechanism, and a floating connection device. Along the forward direction of the hand-operated sand removal device, the hand-operated mechanism is located behind the working mechanism. One end of the floating connection device is fixed to the front of the hand-operated mechanism, and the other end is hinged to the rear of the working mechanism. The handrail mechanism is used by the operator to control the handrail mechanism to move along the track and to push the working mechanism to move along the track; The operating mechanism includes a screw conveyor, a sand dredging device, a speed reduction transmission mechanism, and a first power source. The sand dredging device is fixed on the input shaft of the speed reduction transmission mechanism, and the screw conveyor is fixed on the output shaft of the speed reduction transmission mechanism. The first power source is connected to the input shaft of the speed reduction transmission mechanism to drive the input shaft of the speed reduction transmission mechanism to rotate. The input shaft of the speed reduction transmission mechanism drives the sand dredging device to rotate, and through the speed reduction transmission mechanism, drives the output shaft of the speed reduction transmission mechanism and the screw conveyor to rotate.
2. The hand-operated sand removal device according to claim 1, characterized in that, The sand dredging device includes a sand dredging pipe and sand dredging blades arranged around the circumference of the sand dredging pipe, and the sand dredging blades and the sand dredging pipe are integrally formed.
3. The hand-operated sand removal device according to claim 2, characterized in that, The reduction transmission mechanism is a worm gear reducer, and the sand dredging pipe is fixed on the input shaft of the worm gear reducer; The spiral conveying device includes multiple first spiral blades, multiple second spiral blades, and a spiral shaft. The spiral shaft is connected to the output shaft of the worm gear reducer. The multiple first spiral blades are respectively fixed in the central region of the spiral shaft, and the multiple second spiral blades are respectively fixed in the two end regions near the spiral shaft. The size of the first spiral blades is larger than the size of the second spiral blades.
4. The hand-operated sand removal device according to claim 3, characterized in that, The working mechanism also includes a cover, the spiral shaft is located within the receiving space formed by the cover, and the two ends of the spiral shaft are fixed to the left and right sides of the cover. The outer walls on the left and right sides of the shell cover are respectively provided with height adjustment mechanisms, which are used to adjust the distance between the working mechanism and the top surface of the rail on the track.
5. The hand-operated sand removal device according to claim 4, characterized in that, The height adjustment mechanism includes a fixed frame and a lifting device; The fixing frame includes a fixing plate and a guide channel. The guide channel is fixed on the fixing plate and at least one positioning hole is provided on the guide channel. The lifting device includes a lifting rod with multiple through holes along its longitudinal direction. The lifting rod is slidably inserted into the guide channel. By passing a first fixing member through the positioning hole and any of the through holes on the lifting rod, the height of the lifting rod relative to the fixing frame can be adjusted.
6. The hand-operated sand removal device according to claim 5, characterized in that, The lifting device also includes a mounting plate, which is fixed to one end of the lifting rod near the top surface of the rail, and the length direction of the mounting plate is perpendicular to the length direction of the lifting rod. Limiting wheels are respectively provided at the left and right ends near the mounting plate. When the hand-held sand removal device is in operation, the limiting wheels travel on the top surface of the rail. A first mounting rod is provided at the center of the mounting plate. When the hand-held sand removal device is not in operation, the first mounting rod is used to install the beach wheel.
7. The hand-operated sand removal device according to claim 6, characterized in that, A second mounting rod is provided on the top plate of the shell cover. When the hand-held sand removal device is in operation, the second mounting rod is used to install the beach wheel to increase the counterweight of the working mechanism.
8. The hand-operated sand removal device according to claim 4, characterized in that, Sand-shoveling plates are fixed to the front ends of the left and right sides of the shell cover, and the lower surface of the sand-shoveling plates has a recessed step. When the hand-held sand removal device is in operation, the bottom edge of the step abuts against the top surface of the rail.
9. The hand-operated sand removal device according to claim 4, characterized in that, The operating mechanism also includes a sand outlet pipe, and the bottom end of the sand outlet pipe is provided with an arc-shaped guide groove, which is located in the horizontal plane; A mounting bracket is provided on the rear side of the shell cover. The sand outlet pipe is fixed to the mounting bracket by a second fixing member. The second fixing member passes through the arc-shaped guide groove and is screwed into the fixing hole on the mounting bracket. When the second fixing member is loosened, the sand outlet pipe rotates along the arc-shaped guide groove to adjust the direction. When it is tightened, the direction is locked.
10. The hand-operated sand removal device according to claim 1, characterized in that, The floating connection device includes a triangular bracket, a crossbeam, a shock absorber, a first floating shaft, and a second floating shaft; The top of the triangular bracket is hinged to the middle of the crossbeam via the first floating shaft, and the bottom side of the triangular bracket is fixed to the front of the handrail mechanism. The side rods on the left and right sides of the triangular bracket are flexibly connected to the crossbeam through the vibration damper; The left and right ends of the crossbeam are respectively hinged to the rear of the working mechanism via a second floating shaft.