Hydraulic lifting ejector rod device for installing coupler bearing piece

Abstract

The utility model provides a hydraulic lifting ejector rod device for installing a car coupler bearing piece, which comprises a hydraulic lifting device, the hydraulic lifting device is installed on a walking mechanism, a supporting device is installed on the end portion of the hydraulic lifting device, and a transmission assembly is installed on the supporting device. The supporting device comprises a bearing supporting table and a hollow cylindrical bearing table, one side of the bearing supporting table is connected with the hollow cylindrical bearing table, a circular baffle is arranged in the hollow cylindrical bearing table, a hook tail round pin is placed on the circular baffle, an adjustable axial baffle is installed at the top of the bearing supporting table, and an adjustable transverse clamping arm is installed at the bottom of the bearing supporting table. A safety supporting plate is placed on the top of the bearing supporting table. The transmission assembly comprises a rolling bearing, a transmission lead screw and a hand wheel, the top end of the transmission lead screw is connected with a circular baffle, the bottom end of the transmission lead screw is connected with the hand wheel, and the rolling bearing is installed on the bearing supporting table.

Description

Technical Field

[0001] This utility model relates to the field of railway freight car manufacturing, and in particular to a hydraulic lifting rod device for installing coupler support components. Background Technology

[0002] The coupler and buffer device is an important component of railway vehicles, used to connect cars and locomotives, transmitting traction and longitudinal impact forces. It consists of a coupler head, buffer, and coupler tail frame, forming a whole, and is installed in the traction beam at the undercarriage end via safety support plates and coupler tail pins. During loading, the coupler head, buffer, and coupler tail frame are transported to the traction beam at the undercarriage end using a forklift. Then, the coupler tail pin and safety support plate are manually lifted to the corresponding positions on the center beam and tightened with bolts and nuts. Considering the coupler support component weighs approximately 50 kg, and the operation requires alignment and bolt tightening, the entire process is not only labor-intensive and inefficient, but also carries the risk of the disassembled support component falling off or becoming unstable.

[0003] In existing technologies, the auxiliary tools for disassembling and assembling coupler buffer devices are not only complex in structure but also bulky, making them unsuitable for long-distance movement. Furthermore, considering the on-site working conditions, they cannot be used interchangeably across multiple vehicle types, and are unsuitable for working with large equipment when operating under vehicles. Utility Model Content

[0004] The technical problem this invention aims to solve is that existing auxiliary tools for disassembling and assembling coupler buffer devices are not only complex in structure but also bulky, making them unsuitable for long-distance movement. Furthermore, considering the specific working conditions, they cannot be used interchangeably across different vehicle models, and are unsuitable for working under large equipment.

[0005] To solve the above-mentioned technical problems, this utility model provides a hydraulic lifting rod device for installing coupler support components, including a hydraulic lifting device mounted on a traveling mechanism, a support device mounted at the end of the hydraulic lifting device, and a transmission assembly mounted on the support device; the support device includes a bearing platform and a hollow cylindrical bearing platform, with the hollow cylindrical bearing platform connected to one side of the bearing platform, a circular baffle provided inside the hollow cylindrical bearing platform, a hook tail pin placed on the circular baffle, an adjustable axial baffle mounted on the top of the bearing platform, an adjustable transverse locking arm mounted on the bottom of the bearing platform, and a safety plate placed on the top of the bearing platform; the transmission assembly includes a rolling bearing, a transmission screw, and a handwheel, with the circular baffle connected to the top of the transmission screw and the handwheel connected to the bottom, and the rolling bearing mounted on the bearing platform.

[0006] Preferably, the hydraulic lifting device includes a hydraulic cylinder, which is connected to the support platform via a hydraulic lifting assembly.

[0007] Preferably, the hydraulic lifting device further includes a lifting foot pedal assembly, wherein a spring is provided inside the lifting foot pedal assembly.

[0008] Preferably, a fixing buckle is provided on one side of the hydraulic cylinder.

[0009] Preferably, the walking mechanism includes a base frame, on which directional wheels and omnidirectional wheels are mounted.

[0010] Preferably, one side of the bearing support platform end face is provided with a set of adjustment grooves, and an axial baffle is installed on the adjustment grooves by threaded parts. The other side of the bearing support platform end face is provided with a set of rolling grooves, and a rolling bearing is installed in the rolling grooves.

[0011] Preferably, the bottom surface of the support platform is provided with positioning slots on both sides, the positioning slots are connected in sequence, and a transverse clamping arm is installed on the positioning slot.

[0012] Preferably, the positioning slot includes a first positioning hole, a second positioning hole, and a third positioning hole, which are connected in sequence, and the width of the connecting channel is smaller than the diameter of the positioning hole.

[0013] Preferably, the support platform and the transverse clamping arm are provided with clamping posts on both sides, one end of the transverse clamping arm is installed on the positioning hole by rotating the handle nut, and the other end is connected to the clamping post.

[0014] Preferably, the supporting platform and the hollow cylindrical supporting platform are connected by a reinforcing frame.

[0015] Advantages of this utility model:

[0016] This utility model is not only applicable to the installation of various types of railway freight car coupler support components, but also has a simple structure, high safety and reliability, sufficient strength and flexibility, which greatly reduces the workload and shortens the operation time. Attached Figure Description

[0017] Figure 1 A schematic diagram of a hydraulic lifting jack device for installing coupler support components. Figure 1 ;

[0018] Figure 2 A schematic diagram of a hydraulic lifting jack device for installing coupler support components. Figure 2 ;

[0019] Figure 3 This is a top view of a support device for a hydraulic lifting jack for installing coupler support components;

[0020] Figure 4A bottom view of a support device for a hydraulic lifting jack for installing coupler support components;

[0021] Figure 5 This is a schematic diagram of the positioning slot of a hydraulic lifting jack device used for installing coupler support components;

[0022] As shown in the figure:

[0023] 1. Base frame

[0024] 2. Directional wheel

[0025] 3. Casters

[0026] 4. Hydraulic cylinder

[0027] 5. Adjustable foot pedal assembly

[0028] 6. Spring

[0029] 7. Fixing buckle

[0030] 8. Hook tail pin

[0031] 9. Supporting platform

[0032] 10. Hollow cylindrical support platform

[0033] 11. Reinforcement frame

[0034] 12. Circular baffle

[0035] 13. Lateral clamping arm

[0036] 14. Axial baffle

[0037] 15. Pier

[0038] 16. Threaded parts

[0039] 17. Rotary handle nut

[0040] 18. Rolling bearings

[0041] 19. Lead screw

[0042] 20. Handwheel

[0043] 21. Adjustment groove

[0044] 22. Rolling groove

[0045] 23. First positioning hole

[0046] 24. Second positioning hole

[0047] 25. Third positioning hole

[0048] 26. Positioning slot hole

[0049] 27. Safety tray

[0050] 28. Limiting hole

[0051] 29. Positioning pin

[0052] 30. Hollow ring. Detailed Implementation

[0053] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. Identical components are indicated by the same reference numerals.

[0054] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.

[0055] To make the content of this utility model easier to understand, the technical solutions in the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0056] Combined with appendix Figure 1-5 As shown, a hydraulic lifting rod device for installing a coupler support includes a hydraulic lifting device mounted on a traveling mechanism, a support device mounted at the end of the hydraulic lifting device, and a transmission component mounted on the support device.

[0057] The hydraulic lifting device is used to control the lifting of the support device, the traveling mechanism is used to drive the hydraulic lifting device and the support device to move, the support device is used to receive and control the hook tail pin 8, and the transmission component is used to control the hook tail pin 8 and the moving safety plate 27.

[0058] The support device includes a bearing platform 9 and a hollow cylindrical bearing platform 10. The hollow cylindrical bearing platform 10 is connected to one side of the bearing platform 9, and the bearing platform 9 and the hollow cylindrical bearing platform 10 are connected by a reinforcing frame 11. A circular baffle 12 is provided inside the hollow cylindrical bearing platform 10, and a hook-tail pin 8 is placed on the circular baffle 12. The hollow cylindrical bearing platform 10 and the circular baffle 12 are designed according to the shape and size of the hook-tail pin 8, which serves to restrict and constrain movement, and also limits the axial movement of the safety plate. The bearing platform 9 is a rectangular plate structure, welded from steel, possessing sufficient rigidity to ensure that the load-bearing capacity meets the usage requirements. The base frame 1 adopts an integrated fixed structure, using welded square steel. A reinforcing frame 11 is also provided on the bearing platform 9 to ensure the reinforcement of the hollow cylindrical bearing platform 10.

[0059] An adjustable axial baffle 14 is installed on the top of the support platform 9, an adjustable transverse locking arm 13 is installed on the bottom of the support platform 9, and a safety plate 27 is placed on the top of the support platform 9; the transverse locking arm 13 and the axial baffle 14 are used to restrict the spatial freedom of the safety plate 27 to prevent it from falling off.

[0060] The transmission assembly includes a rolling bearing 18, a transmission screw 19, and a handwheel 20. The top end of the transmission screw 19 is connected to a circular baffle 12, and the bottom end is connected to the handwheel 20. The rolling bearing 18 is mounted on a support platform 9. A set of rolling grooves 22 is provided on one side of the end face of the support platform 9, and the rolling bearing 18 is installed in the rolling grooves 22.

[0061] The transmission screw 19 is used to push the hook tail pin 8 upward. When the safety pallet 27 and hook tail pin 8, after maintenance, are moved to the bottom of the vehicle via the walking mechanism, the operator can turn the handwheel 20 to control the transmission of the transmission screw 19. The rolling bearing 18 is used to slide the safety pallet 27. Considering that the installation of the safety pallet 27 can only proceed after the hook tail pin 8 is installed, directly moving the safety pallet 27 would result in high friction and a risk of scratching the bottom of the safety pallet 27. To change the movement method and allow the operator to easily and conveniently push the safety pallet 27, a rolling groove 22 is opened on the top of the support platform 9, and a rolling bearing 18 is installed, which can quickly and smoothly complete the connection between the two processes.

[0062] The hydraulic lifting device includes a hydraulic cylinder 4, which is connected to the support platform 9 via a hydraulic lifting assembly. The hydraulic lifting device also includes a lifting foot pedal assembly 5, which contains a spring 6. During operation, pressing the lifting foot pedal assembly 5 and the spring 6 extends the push rod of the hydraulic cylinder, thereby lifting the hook pin 8 and the safety support plate 27 to a predetermined height. A fixing buckle 7 is provided on one side of the hydraulic cylinder 4. The hydraulic lifting device changes the previous manual lifting operation mode, shortening the installation and alignment time. During operation, the installation of the safety support plate can be performed simply by controlling the working stroke of the hydraulic cylinder through the lifting foot pedal assembly 5.

[0063] The traveling mechanism includes a base frame 1, on which are mounted directional wheels 2 and omnidirectional wheels 3. The traveling mechanism is used for overall movement. To ensure stability, the base frame 1 adopts an integrated fixed structure. Directional wheels 2 are used for the two rollers located at the front of the base frame 1 to ensure guidance; omnidirectional wheels 3 are used for the two rollers located at the rear of the base frame 1 to ensure steering. A 135° turning angle is designed on the crossbeam of the base frame 1 where the directional wheels 2 are mounted for their installation. During movement, the directional wheels 2 are placed at the front for easy guidance, and the omnidirectional wheels 3 are placed at the rear for easy operator control. By using a base frame 1 combining directional wheels 2 and omnidirectional wheels 3, the hydraulic lifting jack device can be moved to different locations, increasing the operator's control over the movement of the lifting jack and further improving labor efficiency.

[0064] Considering the different structural dimensions of the safety pallet 27 used in different vehicle models, adjustment grooves 21 and multiple positioning slots 26 are provided on the top and bottom of the support platform 9 to adjust the position of the axial baffle 14 and the transverse clamping arm 13, ensuring the reinforcement and positional constraint of the safety pallet 27, so that the safety pallet 27 is vibration resistant and not easy to fall off during transportation.

[0065] Therefore, an adjustment groove 21 is provided on one side of the end face of the bearing support 9. The adjustment groove 21 is used to adjust the position of the axial baffle 14. The axial baffle 14 is installed on the adjustment groove 21 by a threaded part 16. Positioning slots 26 are provided on both sides of the bottom surface of the bearing support 9. The positioning slots 26 are connected in sequence. A transverse locking arm 13 is installed on the positioning slots 26. The positioning slots 26 include a first positioning hole 23, a second positioning hole 24 and a third positioning hole 25. The first positioning hole 23, the second positioning hole 24 and the third positioning hole 25 are connected in sequence, and the width of the connecting channel is smaller than the diameter of the positioning hole.

[0066] During operation, a suitable positioning slot 26 is selected based on the workpiece size, and the safety pallet 27 is reinforced via the adjustment slot 21. This support platform 9, through the positioning slot 26, can be converted into multiple different working positions. In on-site operations, a suitable working position is selected based on the structural dimensions of the safety pallet for different vehicle models to meet production needs.

[0067] The supporting platform 9 and the transverse clamping arm 13 are respectively provided with clamping posts 15 on both sides to limit excessive rotation of the transverse clamping arm 13. One end of each clamping post 15 has a cross-section to limit the two sides of the safety plate 27, and the other end is threaded for connecting to the transverse clamping arm 13. One end of the transverse clamping arm 13 is installed in the positioning slot 26 through a rotary handle nut 17, and the other end is connected to the clamping post 15. To avoid spending too much time during the reinforcement process, a rotary handle nut was designed, which simplifies the reinforcement tools, reduces the reinforcement time, and improves on-site work efficiency.

[0068] Positioning pins 29 are installed on both sides of the bottom of the support platform 9 to limit the excessive rotation of the transverse clamping arm 13.

[0069] To prevent the lateral locking arm 13 from rotating in the opposite direction, limiting holes 28 were drilled on both sides of the bearing support platform 9, which served to restrict the movement of the lateral locking arm 13 during the reinforcement process.

[0070] A hollow ring 30 is welded to the bottom of the support platform 9. During installation, the telescopic rod of the hydraulic lifting device is inserted into the hollow ring 30 and fixedly connected to the support platform 9 by bolts.

[0071] The working process is as follows: First, place the repaired hook tail pin 8 into the hollow cylindrical support platform 10. Then, place the safety support plate 27 on the support platform 9. Select the positioning slot 26 to ensure the lateral positioning of the transverse locking arm 13, and move the axial baffle 14 to ensure axial positioning. Then, the hydraulic cylinder 4 rises, lifting both to the bottom of the vehicle body. Use the transmission screw 19 and handwheel 20 to align and lift the hook tail pin 8 until it is installed. Next, loosen the transverse locking arm 13 and the axial baffle 14 to ensure a certain clearance. At the same time, use the rolling bearing 18 to slide the safety support plate 27 to the bottom of the hook tail pin 8. Raise the hydraulic cylinder 4 again to complete the installation of the safety support plate 27. Finally, flip the fixing buckle 7, retract the hydraulic cylinder 4, and move it to both sides of the vehicle body through the walking mechanism.

[0072] This application can be further improved so that the adjustment range of the hydraulic cylinder extension stroke of the hydraulic lifting device can be matched according to the working conditions, such as an extension range of 0.2-1.0 meters or an extension range of 0.2-3.0 meters, which can adapt to the installation height requirements of different models of couplers; the lifting speed and limit of the hydraulic cylinder are dynamically adjusted by pressure sensors and height sensors to ensure accurate lifting while avoiding overload or misoperation.

[0073] Strength improvement of hollow cylindrical support platform: Reinforcing ribs or polymer materials are added inside the hollow cylindrical support platform to further improve compressive strength; high-strength alloy materials are used to replace ordinary steel to improve load-bearing capacity and durability.

[0074] All standard parts used in this utility model are purchased from the market, and irregular parts are customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0075] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A hydraulic lifting jack device for installing coupler support components, comprising a hydraulic lifting device, characterized in that: The hydraulic lifting device is mounted on the traveling mechanism, and a support device is installed at the end of the hydraulic lifting device. A transmission component is installed on the support device. The support device includes a support platform (9) and a hollow cylindrical support platform (10). The hollow cylindrical support platform (10) is connected to one side of the support platform (9). A circular baffle (12) is provided inside the hollow cylindrical support platform (10). A hook-tail pin (8) is placed on the circular baffle (12). An adjustable axial baffle (14) is installed on the top of the support platform (9). An adjustable transverse locking arm (13) is installed on the bottom of the support platform (9). A safety plate (27) is placed on the top of the support platform (9). The transmission assembly includes a rolling bearing (18), a transmission screw (19), and a handwheel (20). The top end of the transmission screw (19) is connected to a circular baffle (12), and the bottom end is connected to a handwheel (20). The rolling bearing (18) is mounted on a support platform (9).

2. The hydraulic lifting jack device for installing a coupler support component according to claim 1, characterized in that: The hydraulic lifting device includes a hydraulic cylinder (4), which is connected to the support platform (9) via a hydraulic lifting assembly.

3. The hydraulic lifting jack device for installing a coupler support component according to claim 1, characterized in that: The hydraulic lifting device also includes a lifting foot pedal assembly (5), and a spring (6) is provided inside the lifting foot pedal assembly (5).

4. The hydraulic lifting jack device for installing a coupler support component according to claim 2, characterized in that: The hydraulic cylinder (4) is provided with a fixing buckle (7) on one side.

5. The hydraulic lifting jack device for installing a coupler support component according to claim 1, characterized in that: The walking mechanism includes a base frame (1), on which directional wheels (2) and omnidirectional wheels (3) are mounted.

6. The hydraulic lifting jack device for installing a coupler support component according to claim 1, characterized in that: A set of adjustment grooves (21) is provided on one side of the end face of the bearing support (9). An axial baffle (14) is installed on the adjustment groove (21) by means of a threaded part (16). A set of rolling grooves (22) is provided on the other side of the end face of the bearing support (9). A rolling bearing (18) is installed in the rolling groove (22).

7. The hydraulic lifting jack device for installing a coupler support component according to claim 1, characterized in that: The support platform (9) has positioning slots (26) on both sides of its bottom surface. The positioning slots (26) are connected in sequence, and a transverse clamping arm (13) is installed on the positioning slot (26).

8. The hydraulic lifting jack device for installing a coupler support component according to claim 7, characterized in that: The positioning slot (26) includes a first positioning hole (23), a second positioning hole (24) and a third positioning hole (25), the first positioning hole (23), the second positioning hole (24) and the third positioning hole (25) are connected in sequence, and the width of the connecting channel is smaller than the diameter of the positioning hole.

9. A hydraulic lifting jack device for installing a coupler support component according to claim 5, characterized in that: The bearing support (9) and the transverse clamping arm (13) are provided with clamping posts (15) on both sides. One end of the transverse clamping arm (13) is installed on the positioning hole through the rotary handle nut (17), and the other end is connected to the clamping post (15).

10. The hydraulic lifting jack device for installing a coupler support component according to claim 1, characterized in that: The support platform (9) and the hollow cylindrical support platform (10) are connected by a reinforcing frame (11).

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