Railway portal excavating device

Abstract

The application discloses a railway mouth excavating device, which comprises a chassis trolley, a lifting rack arranged on the chassis trolley, and a rake chain transmission mechanism arranged on the lifting rack. The chassis trolley is provided with a plurality of guide columns and gear columns, the gear columns are provided with passive gears, and the passive gears are connected with a driving device. The lifting rack is provided with lifting columns and lifting lead screws, the lifting columns are slidably connected with the guide columns, the lifting lead screws are engaged with the passive gears, the passive gears rotate to drive the lifting lead screws to ascend or descend, and a chain wheel is arranged on the periphery of the lifting rack. The rake chain transmission mechanism comprises a ballast removing rake chain and is driven by a driving motor. The device replaces manual operation with machine operation for the mouth excavating work, realizes high-efficiency, high-standard and low-cost operation of the mouth excavating work, and has the advantages of simple structure and convenience in operation and maintenance.

Description

Technical Field

[0001] This utility model relates to the field of railway track engineering technology, and more specifically, to a railway track excavation device. Background Technology

[0002] Ballast railways require regular cleaning and screening to restore track bed elasticity, improve rail smoothness, and ensure traffic safety. Before each large-scale mechanical cleaning operation, the cleaning rake chain needs to be passed under the sleepers and connected. Therefore, before each rake chain insertion, manual excavation of the track bed is necessary. After a track maintenance window ends, the track bed needs to be restored, and then the excavation of the "dragon's mouth" needs to be restarted for the next maintenance window. Currently, the industry practice involves 4 to 6 people manually excavating using tools such as rakes, picks, and shovels. The required "dragon's mouth" dimensions are generally required to be at least 1.5 meters wide, at least 1 meter long along the track direction, and at least 300 mm deeper than the sleepers. This manual operation takes more than 30 minutes, significantly shortening the effective working time during maintenance windows and increasing labor costs.

[0003] Application No. 201510970525.2 discloses a ballast excavation device in railway track cleaning equipment, including a chassis, a ballast excavation mechanism, and a ballast conveying device. The excavation mechanism includes a lifting cylinder, a drive motor, and an excavation chain assembly. The lifting cylinder is connected to the chassis and the drive motor, which in turn drives the excavation chain assembly. The excavation chain assembly has an excavation sprocket, an annular ballast removal chain, and rake teeth. The excavation sprocket meshes with the annular ballast removal chain, and the annular ballast removal chain is equipped with rake teeth. The ballast conveying device includes a ballast suction pipe, a ballast storage container, a ballast filter, a vacuum pump, and a conveyor belt. There is one ballast excavation mechanism on each side of the chassis. The lifting cylinder of the ballast excavation mechanism is connected to the chassis via a sliding mechanism that can move along the width direction of the chassis. The excavation mechanism in this device is complex and has poor operation convenience. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a railway slit excavation device for slit excavation operations.

[0005] The specific details of this utility model are as follows:

[0006] A railway shovel excavation device includes a chassis trolley, a lifting platform mounted on the chassis trolley, and a rake chain transmission mechanism mounted on the lifting platform. The chassis trolley includes a bottom frame and multiple guide columns and gear columns vertically fixed on the bottom frame. The bottom frame is equipped with track wheels that travel on railway rails. A driven gear is mounted on each gear column and connected to a drive device. The lifting platform is equipped with a lifting column and a lifting screw. The lifting column is slidably connected to the guide columns. The lifting screw meshes with the driven gear, and the rotation of the driven gear drives the lifting screw to rise or fall. A sprocket is arranged on the periphery of the lifting platform. The rake chain transmission mechanism includes a ballast rake chain and a drive motor. The ballast rake chain meshes with the sprockets on the periphery of the lifting platform. The drive motor is fixed on the lifting platform and is connected to the sprocket drive mechanism.

[0007] Furthermore, the railway excavation device also includes a tractor vehicle positioned in the direction of travel of the chassis trolley. The tractor vehicle is a rail vehicle connected to the chassis trolley.

[0008] Furthermore, the ballast rake chain includes multiple links, each link having horizontal rake teeth in the horizontal direction and vertical rake teeth in the vertical direction, and the multiple links are detachably connected to form a ring.

[0009] Furthermore, four guide columns are provided and are located at the four corners of the chassis trolley.

[0010] Furthermore, the gear column is provided in two parts, which are set on both sides of the rail.

[0011] Furthermore, the track wheels are configured to have four.

[0012] Furthermore, the driving device includes a rocker arm with a drive gear that meshes with a driven gear.

[0013] Furthermore, the drive device includes a lifting motor, which meshes with a driven gear via a gear set.

[0014] Furthermore, the lifting platform is also equipped with a tensioning mechanism to tension the ballast rake chain.

[0015] Furthermore, the drive motor and the sprocket are transmitted through a drive chain.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] This device uses a lifting platform mounted on a chassis trolley, with a rake chain drive mechanism installed on the lifting platform, to excavate the "dragon mouth". The cleaning depth of the rake chain can be controlled by raising or lowering the lifting platform. This device replaces manual labor with machine operation for "dragon mouth" excavation, achieving high-efficiency, high-standard, and low-cost operation. In addition, the device has a simple structure, making it easy for operators to operate and maintain. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the device structure in this application;

[0019] Figure 2 This is a schematic diagram of the lifting platform structure in this application;

[0020] Figure 3 This is a schematic diagram of the side structure of the lifting platform in this application;

[0021] Figure 4 This is a front view schematic diagram of the device structure of this application;

[0022] Figure 5 This is a front view structural diagram of the ballast rake chain in this application;

[0023] The components include: 1. sleeper; 2. rail; 3. chassis trolley; 4. lifting platform; 5. drive motor; 6. drive chain; 7. ballast rake chain; 8. gear column; 9. rocker arm; 10. drive gear; 11. driven gear; 12. lifting screw; 13. sprocket; 14. tensioning mechanism; 15. drive shaft; 16. lifting column; 17. guide column; 18. horizontal rake teeth; 19. vertical rake teeth; 20. track wheel. Detailed Implementation

[0024] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application; however, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below. Furthermore, it should be understood in the description of this application that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships 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. Therefore, they should not be construed as limitations on this application. In addition, 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 indicated technical features. Thus, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified. In this application, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In this application, unless otherwise explicitly specified and limited, "on" or "below" a second feature can mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that the specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

[0025] Example 1

[0026] Please see Figures 1 to 5 As shown, one embodiment of this utility model is provided:

[0027] A railway excavation device includes a chassis trolley 3, a lifting platform 4 mounted on the chassis trolley 3, and a rake chain transmission mechanism mounted on the lifting platform 4.

[0028] The chassis trolley 3 includes a bottom frame and four guide columns 17 and two gear columns 8 vertically fixed on the bottom frame. The guide columns 17 are located at the four corners of the chassis trolley 3, providing support for the entire device. The bottom frame is equipped with four track wheels 20, allowing manual movement on the rails 2. A driven gear 11 is mounted on each gear column 8 and is connected to a drive device. The drive device includes a rocker arm 9 connected to a transmission shaft 15. A drive gear 10 is mounted on the transmission shaft 15 and connects to... The passive gear 11 is engaged and is fixed in the vertical direction, but can rotate in a circular motion. The lifting platform 4 is equipped with a lifting column 16 and a lifting screw 12. The lifting column 16 is slidably connected to the guide column 17. The lifting screw 12 is engaged with the passive gear 11. Manually shaking the rocker arm 9 can rotate the driving gear 10, which drives the passive gear 11 to rotate. The passive gear 11 is helically connected to the lifting screw 12. The rotation of the passive gear 11 will drive the lifting screw 12 to rise or fall, thereby realizing the up and down movement of the lifting platform 4.

[0029] Four sprockets 13 are also provided on the periphery of the lifting platform 4. The sprockets 13 are located at the four corners of the lifting platform 4, with the two lowest sprockets being lower than the plane of the rails. The rake chain transmission mechanism includes a ballast rake chain 7 and a drive motor 5. The ballast rake chain 7 includes multiple chain links. The chain links are provided with horizontal rake teeth 18 in the horizontal direction and vertical rake teeth 19 in the vertical direction. The multiple chain links are detachably connected in a ring shape by pins. The ballast rake chain 7 meshes with the peripheral sprockets 13 of the lifting platform 4. The drive motor 5 is installed in the middle of the lifting platform 4. It drives the sprocket 13 to rotate through the drive chains 6 on the left and right sides, which in turn drives the ballast rake chain 7 to rotate clockwise or counterclockwise. Through the rake teeth on the ballast rake chain 7, the ballast at the bottom of the sleeper 1 is brought to the side. Then, the workers can directly shovel the ballast to one side with the help of tools. The horizontal rake teeth are used to loosen the ballast on the side of the rake chain, and the vertical rake teeth are used to loosen the ballast at the bottom and pull the loosened ballast to the end of the sleeper.

[0030] When carrying out the ballast excavation operation, first disconnect the ballast rake chain 7 at a certain pin point on a chain link. Manually pass the ballast rake chain 7 through the bottom of the sleeper 1 and install it on the sprocket 13. Then connect the chain links at the joints with pins. After the ballast rake chain 7 is installed, start the drive motor 5 to carry out the excavation operation. During the operation, the operator can adjust the height of the lifting platform 4 according to the ballast clearing depth to control the excavation depth of the ballast rake chain 7. After the operation is completed, remove the ballast rake chain 7.

[0031] Example 2

[0032] Please see Figures 1 to 5 As shown, one embodiment of this utility model is provided:

[0033] A railway excavation device includes a chassis trolley 3, a lifting platform 4 mounted on the chassis trolley 3, and a rake chain transmission mechanism mounted on the lifting platform 4.

[0034] The chassis trolley 3 includes a bottom frame and four guide columns 17 and two gear columns 8 vertically fixed on the bottom frame. The guide columns 17 are located at the four corners of the chassis trolley 3, providing support for the entire device. The bottom frame is equipped with four track wheels 20, allowing manual movement on the rails 2. A driven gear 11 is mounted on each gear column 8 and is connected to a drive device. The drive device includes a rocker arm 9 connected to a transmission shaft 15. A drive gear 10 is mounted on the transmission shaft 15 and connects to... The passive gear 11 is engaged and is fixed in the vertical direction, but can rotate in a circular motion. The lifting platform 4 is equipped with a lifting column 16 and a lifting screw 12. The lifting column 16 is slidably connected to the guide column 17. The lifting screw 12 is engaged with the passive gear 11. Manually shaking the rocker arm 9 can rotate the driving gear 10, which drives the passive gear 11 to rotate. The passive gear 11 is helically connected to the lifting screw 12. The rotation of the passive gear 11 will drive the lifting screw 12 to rise or fall, thereby realizing the up and down movement of the lifting platform 4.

[0035] Four sprockets 13 are also provided on the periphery of the lifting platform 4. The sprockets 13 are located at the four corners of the lifting platform 4, with the two lowest sprockets being lower than the plane of the rails. The rake chain transmission mechanism includes a ballast rake chain 7 and a drive motor 5. The ballast rake chain 7 includes multiple chain links. The chain links are provided with horizontal rake teeth 18 in the horizontal direction and vertical rake teeth 19 in the vertical direction. The multiple chain links are detachably connected in a ring shape by pins. The ballast rake chain 7 meshes with the peripheral sprockets 13 of the lifting platform 4. The drive motor 5 is installed in the middle of the lifting platform 4. It drives the sprocket 13 to rotate through the drive chains 6 on the left and right sides, which in turn drives the ballast rake chain 7 to rotate clockwise or counterclockwise. Through the rake teeth on the ballast rake chain 7, the ballast at the bottom of the sleeper 1 is brought to the side. Then, the workers can directly shovel the ballast to one side with the help of tools. The horizontal rake teeth are used to loosen the ballast on the side of the rake chain, and the vertical rake teeth are used to loosen the ballast at the bottom and pull the loosened ballast to the end of the sleeper.

[0036] Furthermore, the lifting platform 4 is also equipped with a tensioning mechanism 14, which tensions the ballast rake chain 7. The tensioning mechanism includes a push screw and a base. The base is fixed to the lifting platform by bolts. The base is provided with a sliding groove, and a sprocket is installed in the sliding groove. The push screw is screwed into the screw hole side plate of the lifting platform. The front end of the screw presses against the bearing seat of the sprocket. The spacing between the sprockets is adjusted by screwing the push screw in or out, thereby achieving the tensioning of the ballast rake chain.

[0037] During the ballast excavation operation, the ballast rake chain 7 is first disconnected at a pin point on a certain link. The ballast rake chain 7 is then manually passed through the bottom of the sleeper 1 and installed on the sprocket 13. The links are then connected using pins. After the ballast rake chain 7 is installed, it is tensioned using the tensioning mechanism 14. The drive motor 5 is then started to begin the excavation operation. During the operation, the operator can adjust the height of the lifting platform 4 according to the ballast clearing depth to control the excavation depth of the ballast rake chain 7. After the operation is completed, the ballast rake chain 7 is removed.

[0038] Example 3

[0039] Please see Figures 1 to 5 As shown, one embodiment of this utility model is provided:

[0040] A railway excavation device includes a chassis trolley 3, a lifting platform 4 mounted on the chassis trolley 3, and a rake chain transmission mechanism mounted on the lifting platform 4.

[0041] The chassis trolley 3 includes a bottom frame and four guide columns 17 and two gear columns 8 vertically fixed on the bottom frame. The guide columns 17 are located at the four corners of the chassis trolley 3 and provide support for the entire device. The bottom frame is equipped with four track wheels 20, which can be manually pushed on the rails 2. A driven gear 11 is installed on the gear column 8. The driven gear 11 is connected to the drive device. In this embodiment, the drive device is a lifting motor. The lifting motor meshes with the driven gear 11 through a gear set, and the torque of the motor replaces manual hand-cranking. The lifting platform 4 is equipped with a lifting column 16 and a lifting screw 12. The lifting column 16 is slidably connected to the guide columns 17. The lifting screw 12 meshes with the driven gear 11. Starting the lifting motor can rotate the driving gear 10, which drives the driven gear 11 to rotate. The driven gear 11 is helically connected to the lifting screw 12. The rotation of the driven gear 11 will drive the lifting screw 12 to rise, thereby realizing the up and down movement of the lifting platform 4.

[0042] Four sprockets 13 are also provided on the periphery of the lifting platform 4. The sprockets 13 are located at the four corners of the lifting platform 4, with the two lowest sprockets being lower than the plane of the rails. The rake chain transmission mechanism includes a ballast rake chain 7 and a drive motor 5. The ballast rake chain 7 includes multiple chain links. The chain links are provided with horizontal rake teeth 18 in the horizontal direction and vertical rake teeth 19 in the vertical direction. The multiple chain links are detachably connected in a ring shape by pins. The ballast rake chain 7 meshes with the peripheral sprockets 13 of the lifting platform 4. The drive motor 5 is installed in the middle of the lifting platform 4. It drives the sprocket 13 to rotate through the drive chains 6 on the left and right sides, which in turn drives the ballast rake chain 7 to rotate clockwise or counterclockwise. Through the rake teeth on the ballast rake chain 7, the ballast at the bottom of the sleeper 1 is brought to the side. Then, the workers can directly shovel the ballast to one side with the help of tools. The horizontal rake teeth are used to loosen the ballast on the side of the rake chain, and the vertical rake teeth are used to loosen the ballast at the bottom and pull the loosened ballast to the end of the sleeper.

[0043] Furthermore, the railway excavation device also includes a tractor set in the direction of travel of the chassis trolley 3. The tractor is a rail vehicle connected to the chassis trolley. Operators can operate the tractor to move the device without manual pushing, which reduces the workload of the operators.

[0044] When carrying out the ballast excavation operation, first disconnect the ballast rake chain 7 at a certain pin point on a chain link. Manually pass the ballast rake chain 7 through the bottom of the sleeper 1 and install it on the sprocket 13. Then connect the chain links at the joints with pins. After the ballast rake chain 7 is installed, start the drive motor 5 to carry out the excavation operation. During the operation, the operator can adjust the height of the lifting platform 4 according to the ballast clearing depth to control the excavation depth of the ballast rake chain 7. After the operation is completed, remove the ballast rake chain 7.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention, and no reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A railway sluice gate excavation device, characterized in that, It includes a chassis trolley, a lifting platform mounted on the chassis trolley, and a rake chain drive mechanism mounted on the lifting platform; The chassis trolley includes a bottom frame and multiple guide columns and gear columns that are vertically fixed on the bottom frame. The bottom frame is equipped with track wheels that travel on railway rails. The gear columns are equipped with driven gears that are connected to a drive device. The lifting platform is equipped with a lifting column and a lifting screw. The lifting column is slidably connected to the guide column. The lifting screw meshes with a driven gear. The rotation of the driven gear drives the lifting screw to rise or fall. A sprocket is provided on the periphery of the lifting platform. The rake chain transmission mechanism includes a ballast rake chain and a drive motor. The ballast rake chain meshes with the outer sprocket of the lifting platform. The drive motor is fixed on the lifting platform and is connected to the sprocket drive.

2. The railway sluice gate excavation device according to claim 1, characterized in that, The railway excavation device also includes a tractor set in the direction of travel of the chassis trolley. The tractor is a rail vehicle connected to the chassis trolley.

3. The railway sluice gate excavation device according to claim 1, characterized in that, The ballast rake chain includes multiple links, each link having horizontal rake teeth in the horizontal direction and vertical rake teeth in the vertical direction, and the multiple links are detachably connected to form a ring.

4. The railway sluice gate excavation device according to claim 1, characterized in that, Four guide columns are provided and are located at the four corners of the chassis trolley.

5. A railway sluice gate excavation device according to claim 1, characterized in that, Two gear columns are provided, located on both sides of the rail.

6. A railway sluice gate excavation device according to claim 1, characterized in that, The track wheels are configured to have 4.

7. A railway sluice gate excavation device according to claim 1, characterized in that, The driving device includes a rocker arm connected to a transmission shaft, on which a drive gear is mounted, and the drive gear meshes with a driven gear.

8. A railway sluice gate excavation device according to claim 1, characterized in that, The drive device includes a lifting motor, which meshes with a driven gear through a gear set.

9. A railway sluice gate excavation device according to claim 1, characterized in that, The lifting platform is also equipped with a tensioning mechanism, which tensions the ballast rake chain.

10. A railway sluice gate excavation device according to claim 1, characterized in that, The drive motor and sprocket are connected by a drive chain.

Images