Special limiting lifting appliance for carriage of high-speed rail motor train unit

Abstract

The utility model relates to the technical field of hoisting facilities, and discloses a special limiting lifting appliance for a compartment of a high-speed rail motor train unit, which comprises a hydraulic cylinder, a connecting block is arranged at the output end of the hydraulic cylinder, and a connecting pipe is arranged at the bottom of the connecting block. According to the special limiting lifting appliance for the carriage of the high-speed rail motor train unit, a worm is driven to rotate by starting a servo motor, then two transmission shafts and two driving bevel gears are driven to rotate through two worm gears, and then two threaded rods are driven to rotate through two driven bevel gears; the two threaded rods can drive the two positioning blocks to move oppositely in the rotating process, so that one ends of the two positioning blocks move out of the interior of the annular groove, position limitation between the connecting column and the connecting pipe is relieved, at the moment, the hydraulic cylinder is started to drive the connecting pipe to move upwards, and the connecting column and the connecting pipe can be separated; and finally, the purpose of conveniently disassembling the hoisting equipment is achieved, and then use of a user is facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting facilities, in particular to a special limit sling for high-speed rail EMU carriages. Background Technique

[0002] Railway, as the main artery of the national economy, a national infrastructure and a popular means of transportation, its development model and speed are not only an economic issue, but more importantly, it reflects political power. Especially, high-speed railways play a very important role in enhancing the political influence of a country and a nation in the international arena. With the development of high-speed rail EMUs, the research and development of special limit slings for them are also of great significance. However, in the actual use process of existing special limit slings for high-speed rail EMU carriages, most of them do not have the function of self-unloading. Since there are high-voltage lines installed on the top of high-speed rail EMU carriages, when hoisting, it is a certain safety hazard for workers to climb onto the carriage roof to remove the hoisting equipment, which is not conducive to use. Therefore, a special limit sling for high-speed rail EMU carriages is proposed. Content of the Utility Model

[0003] (I) Technical Problems to be Solved

[0004] Aiming at the deficiencies of the prior art, the utility model provides a special limit sling for high-speed rail EMU carriages, which has the advantages of being easy to disassemble, etc., and solves the problems that in the actual use process of existing special limit slings for high-speed rail EMU carriages, most of them do not have the function of self-unloading. Since there are high-voltage lines installed on the top of high-speed rail EMU carriages, when hoisting, it is a certain safety hazard for workers to climb onto the carriage roof to remove the hoisting equipment, which is not conducive to use.

[0005] (II) Technical Solutions

[0006] To achieve the above-mentioned purpose of facilitating disassembly, the present utility model provides the following technical solution: A special limit lifting tool for high-speed EMU carriages, including a hydraulic cylinder, the output end of the hydraulic cylinder is provided with a connecting block, the bottom of the connecting block is provided with a connecting pipe, the inside of the connecting pipe is provided with a connecting column with one end extending to its bottom, the top of the connecting column is provided with a frustum located inside the connecting pipe and one end of which is in contact with the bottom of the connecting block, the bottom of the connecting column is provided with a reinforcement seat, the bottom of the reinforcement seat is provided with a mounting plate, both the left and right sides of the connecting pipe are provided with mounting blocks, and opposite sides of the two mounting blocks are both provided with rectangular grooves, the inner walls of the opposite sides of the two rectangular grooves are both provided with threaded rods, the outside of the connecting column is provided with an annular groove, and both the inside of the two rectangular grooves are provided with positioning blocks with one end respectively threadedly connected to the outside of the two threaded rods and the other end extending into the annular groove, the inside of the connecting block is provided with a mounting cavity, both the left and right sides of the inner top wall of the mounting cavity are provided with transmission components with one end respectively extending into the two rectangular grooves and fixedly connected to the outside of the two threaded rods, and the left side of the inner wall of the mounting cavity is provided with a driving component with one end fixedly connected to the outside of the two transmission components and the other end extending to the right side of the connecting block.

[0007] Preferably, the transmission component includes a transmission shaft, both the left and right sides of the inner top wall of the mounting cavity are movably installed with transmission shafts with one end respectively extending into the two rectangular grooves, the bottoms of the two transmission shafts are both fixedly installed with driving bevel gears, and the outside of the two threaded rods are both fixedly installed with driven bevel gears respectively located on the opposite sides of the two positioning blocks and one end of which is respectively meshed with the two driving bevel gears.

[0008] Preferably, the driving component includes a servo motor, the right side of the connecting block is fixedly installed with a servo motor, the right side of the connecting block is fixedly installed with a housing located outside the servo motor, the output shaft of the servo motor extends into the interior of the mounting cavity and is fixedly installed with a worm located behind the two transmission shafts and one end of which is movably connected to the left side of the inner wall of the mounting cavity, and the outside of the two transmission shafts are both fixedly installed with worm wheels located inside the mounting cavity and one end of which is meshed with the worm.

[0009] Preferably, both the inner walls of the opposite sides of the two rectangular grooves are fixedly installed with first bearings, and the threaded rods are rotatably connected to the inner walls of the rectangular grooves through the first bearings, and threaded grooves respectively adapted to the two threaded rods are opened on the opposite sides of the two positioning blocks.

[0010] Preferably, both the left and right sides of the inner top wall of the mounting cavity are fixedly installed with second bearings, and the transmission shafts are rotatably connected to the inner top wall of the mounting cavity through the second bearings.

[0011] Preferably, the left side of the inner wall of the mounting cavity is fixedly installed with a third bearing, and the worm is rotatably connected to the left side of the inner wall of the mounting cavity through the third bearing.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a special limit sling for the carriage of high-speed EMUs, having the following beneficial effects:

[0014] For the special limit sling for the carriage of high-speed EMUs, by starting the servo motor to drive the worm to rotate, and then driving the two transmission shafts and the two driving bevel gears to rotate through the two worm wheels, and then driving the two threaded rods to rotate through the two driven bevel gears. During the rotation of the two threaded rods, the two positioning blocks will move away from each other, so that one end of each of the two positioning blocks moves out of the inside of the annular groove, thereby releasing the position limitation between the connecting column and the connecting pipe. At this time, starting the hydraulic cylinder to drive the connecting pipe to move upward can separate the connecting column from the connecting pipe, finally achieving the purpose of facilitating the disassembly of the hoisting equipment, and thus facilitating the use of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is a schematic structural diagram of the utility model;

[0016] Figure 2 is a partial structural schematic diagram of the connection between the connection block and the connection pipe of the utility model;

[0017] Figure 3 is a partial top view sectional schematic diagram of the annular groove of the utility model.

[0018] In the figure: 1 hydraulic cylinder, 2 connection block, 3 connection pipe, 4 connection column, 5 frustum, 6 reinforcement base, 7 mounting plate, 8 mounting block, 9 rectangular groove, 10 threaded rod, 11 annular groove, 12 positioning block, 13 mounting cavity, 14 transmission assembly, 141 transmission shaft, 142 driving bevel gear, 143 driven bevel gear, 15 driving assembly, 151 servo motor, 152 housing, 153 worm, 154 worm wheel. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0019] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0020] Please refer to Figures 1-3, the present utility model provides a technical solution: a special limiting sling for high-speed EMU carriages, including a hydraulic cylinder 1, the model of the hydraulic cylinder 1 can be QF630T-200, a connecting block 2 is fixedly installed at the output end of the hydraulic cylinder 1, a connecting pipe 3 is fixedly installed at the bottom of the connecting block 2, a connecting column 4 with one end extending to its bottom is movably installed inside the connecting pipe 3, a frustum 5 located inside the connecting pipe 3 and having one end fitting against the bottom of the connecting block 2 is fixedly installed at the top of the connecting column 4, a reinforcement base 6 is fixedly installed at the bottom of the connecting column 4, and a mounting plate 7 is fixedly installed at the bottom of the reinforcement base 6.

[0021] Mounting blocks 8 are fixedly installed on both the left and right sides of the connecting pipe 3, rectangular grooves 9 are opened on the opposite sides of the two mounting blocks 8, threaded rods 10 are movably installed on the inner walls of the opposite sides of the two rectangular grooves 9, an annular groove 11 is opened on the outer side of the connecting column 4, positioning blocks 12 with one end respectively threadedly connected to the outer sides of the two threaded rods 10 and the other end extending into the annular groove 11 are movably installed inside the two rectangular grooves 9, first bearings are fixedly installed on the inner walls of the opposite sides of the two rectangular grooves 9, and the threaded rods 10 are rotatably connected to the inner walls of the rectangular grooves 9 through the first bearings. Threaded grooves adapted to the two threaded rods 10 are opened on the opposite sides of the two positioning blocks 12, through holes adapted to the positioning blocks 12 are opened on both the left and right sides of the connecting pipe 3, and a mounting cavity 13 is opened inside the connecting block 2.

[0022] Driving components 14 with one end respectively extending into the two rectangular grooves 9 and fixedly connected to the outer sides of the two threaded rods 10 are movably installed on both the left and right sides of the inner top wall of the mounting cavity 13. The driving component 14 includes a transmission shaft 141. Transmission shafts 141 with one end respectively extending into the two rectangular grooves 9 are movably installed on both the left and right sides of the inner top wall of the mounting cavity 13. Second bearings are fixedly installed on both the left and right sides of the inner top wall of the mounting cavity 13, and the transmission shafts 141 are rotatably connected to the inner top wall of the mounting cavity 13 through the second bearings. First mounting holes adapted to the transmission shafts 141 and opened on the connecting block 2 are communicated with both the left and right sides of the inner bottom wall of the mounting cavity 13. Second mounting holes adapted to the transmission shafts 141 are opened on the tops of the two mounting blocks 8. Driving bevel gears 142 are fixedly installed at the bottoms of the two transmission shafts 141, and driven bevel gears 143 respectively located on the opposite sides of the two positioning blocks 12 and meshing with the two driving bevel gears 142 are fixedly installed on the outer sides of the two threaded rods 10.

[0023] On the left side of the inner wall of the installation cavity 13, a driving component 15 is movably installed, one end of which is fixedly connected to the outer sides of two transmission components 14 and the other end extends to the right side of the connection block 2. The driving component 15 includes a servo motor 151. A servo motor 151 is fixedly installed on the right side of the connection block 2. The model of the servo motor 151 can be YB2-315S-6-70. A housing 152 located outside the servo motor 151 is fixedly installed on the right side of the connection block 2. The output shaft of the servo motor 151 extends into the interior of the installation cavity 13 and is fixedly installed with a worm 153 located behind the two transmission shafts 141 and one end of which is movably connected to the left side of the inner wall of the installation cavity 13. A third bearing is fixedly installed on the left side of the inner wall of the installation cavity 13. The worm 153 is rotationally connected to the left side of the inner wall of the installation cavity 13 through the third bearing. On the outer sides of the two transmission shafts 141, worm wheels 154 located inside the installation cavity 13 and meshing with the worm 153 at one end are fixedly installed.

[0024] All the electrical components appearing in this text are electrically connected to an external controller and 220V mains power, and the controller can be a conventional known device such as a computer for control.

[0025] During use, the mounting plate 7 is fixedly connected to the top of the high-speed train car body to install this limit lifting device. When it is necessary to lift the car body, the hydraulic cylinder 1 can be started through an external controller to drive the connection block 2, the connecting pipe 3, the connecting column 4, the reinforcement base 6, the mounting plate 7 and the high-speed train car body to move upward as a whole, so as to carry out the lifting operation on the high-speed train car body. When it is necessary to disassemble the lifting device, the servo motor 151 can be started through an external controller to drive the worm 153 to rotate, and then drive the two transmission shafts 141 and the two driving bevel gears 142 to rotate through the two worm wheels 154. Then, the two driven bevel gears 143 drive the two threaded rods 10 to rotate. During the rotation of the two threaded rods 10, the two positioning blocks 12 will move away from each other, so that one end of each of the two positioning blocks 12 moves out of the inside of the annular groove 11, thereby releasing the position restriction between the connecting column 4 and the connecting pipe 3. At this time, the hydraulic cylinder 1 is started to drive the connecting pipe 3 to move upward, so that the connecting column 4 and the connecting pipe 3 can be separated from each other, and then the self-unloading of the lifting device is completed. In the actual application process, since the volume of the connecting column 4, the reinforcement base 6 and the mounting plate 7 is small and does not affect the overall structure of the car body, it can be directly installed when the car body leaves the factory, thus reducing the time spent on subsequent lifting and facilitating the use.

[0026] In summary, for the special limit sling used for the high-speed train EMU carriages, starting the servo motor 151 drives the worm 153 to rotate. Then, two worm wheels 154 drive two transmission shafts 141 and two driving bevel gears 142 to rotate. Next, two driven bevel gears 143 drive two threaded rods 10 to rotate. During the rotation of the two threaded rods 10, the two positioning blocks 12 move away from each other, causing one end of each of the two positioning blocks 12 to move out of the inside of the annular groove 11, thereby releasing the position limitation between the connecting column 4 and the connecting pipe 3. At this time, starting the hydraulic cylinder 1 to drive the connecting pipe 3 to move upward can separate the connecting column 4 from the connecting pipe 3, ultimately achieving the purpose of facilitating the disassembly of the hoisting equipment, thus facilitating the use of the user, and solving the problem that most of the existing special limit slings for high-speed train EMU carriages do not have the function of self-unloading. Since there are high-voltage lines arranged on the top of the high-speed train EMU carriages, when hoisting, it poses a certain safety hazard for the staff to climb onto the carriage roof to remove the hoisting equipment, which is not conducive to use.

[0027] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the element.

[0028] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special limit sling for the carriage of high-speed EMUs, comprising a hydraulic cylinder (1), the output end of the hydraulic cylinder (1) is provided with a connecting block (2), the bottom of the connecting block (2) is provided with a connecting pipe (3), the inside of the connecting pipe (3) is provided with a connecting column (4) with one end extending to its bottom, the top of the connecting column (4) is provided with a frustum (5) located inside the connecting pipe (3) and one end of which is in contact with the bottom of the connecting block (2), the bottom of the connecting column (4) is provided with a reinforcement seat (6), and the bottom of the reinforcement seat (6) is provided with a mounting plate (7), characterized in that: Installation blocks (8) are arranged on both the left and right sides of the connecting pipe (3). Rectangular grooves (9) are arranged on the opposite sides of the two installation blocks (8). Threaded rods (10) are arranged on the inner walls of the opposite sides of the two rectangular grooves (9). An annular groove (11) is arranged on the outer side of the connecting column (4). Positioning blocks (12) are arranged inside the two rectangular grooves (9). One ends of the positioning blocks are respectively in threaded connection with the outer sides of the two threaded rods (10), and the other ends extend into the annular groove (11). An installation cavity (13) is arranged inside the connecting block (2). Transmission components (14) are arranged on the left and right sides of the inner top wall of the installation cavity (13). One ends of the transmission components respectively extend into the two rectangular grooves (9) and are fixedly connected with the outer sides of the two threaded rods (10). A driving component (15) is arranged on the left side of the inner wall of the installation cavity (13). One end of the driving component is fixedly connected with the outer sides of the two transmission components (14), and the other end extends to the right side of the connecting block (2).

2. The special limit suspension device for the carriage of high-speed EMU trains according to claim 1, characterized in that: The transmission component (14) includes a transmission shaft (141). Transmission shafts (141) are movably installed on the left and right sides of the inner top wall of the installation cavity (13). One ends of the transmission shafts respectively extend into the two rectangular grooves (9). Driving bevel gears (142) are fixedly installed at the bottoms of the two transmission shafts (141). Driven bevel gears (143) are fixedly installed on the outer sides of the two threaded rods (10). The driven bevel gears are respectively located on the opposite sides of the two positioning blocks (12), and one ends of the driven bevel gears are respectively meshed with the two driving bevel gears (142).

3. The special limit sling for the carriage of high-speed EMU according to claim 2, characterized in that: The driving component (15) includes a servo motor (151). A servo motor (151) is fixedly installed on the right side of the connecting block (2). A housing (152) is fixedly installed on the right side of the connecting block (2) and is located outside the servo motor (151). The output shaft of the servo motor (151) extends into the installation cavity (13) and is fixedly installed with a worm (153) located behind the two transmission shafts (141). One end of the worm is movably connected with the left side of the inner wall of the installation cavity (13). Worms (154) are fixedly installed on the outer sides of the two transmission shafts (141). The worms are located inside the installation cavity (13), and one ends of the worms are meshed with the worm (153).

4. The special limit sling for the carriage of high-speed EMU trains according to claim 1, wherein: First bearings are fixedly installed on the inner walls of the opposite sides of the two rectangular grooves (9). The threaded rod (10) is rotatably connected with the inner wall of the rectangular groove (9) through the first bearing. Threaded grooves adapted to the two threaded rods (10) are respectively formed on the opposite sides of the two positioning blocks (12).

5. The special limit sling for the carriage of high-speed EMU according to claim 2, characterized in that: Second bearings are fixedly installed on the left and right sides of the inner top wall of the installation cavity (13). The transmission shaft (141) is rotatably connected with the inner top wall of the installation cavity (13) through the second bearing.

6. The special limit suspension device for the carriage of high-speed EMU according to claim 3, characterized in that: A third bearing is fixedly installed on the left side of the inner wall of the installation cavity (13). The worm (153) is rotatably connected with the left side of the inner wall of the installation cavity (13) through the third bearing.

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