Improved 40T flat car axle clamp fixing structure
By introducing the coordinated operation of the axle 2, axle clip assembly, plug-in support mechanism and drive mechanism into the axle clip fixing structure of the 40T flatbed truck, the problem of widening gap between the thrust ring and the axle clip is solved, enabling rapid adjustment and tight fit, and improving the maintenance efficiency and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-24
AI Technical Summary
After prolonged use, the gap between the thrust ring and the axle clamp of the existing 40T flatbed truck axle clamp fixing structure continues to widen, resulting in cumbersome maintenance operations and increased maintenance costs.
The system employs the coordinated operation of the axle 2, axle clamp assembly, plug-in support mechanism, bidirectional screw slide, and drive mechanism to achieve a tight fit between the thrust ring and the U-shaped axle clamp plate, and enables rapid adjustment and fixation through threaded and gear transmission.
It simplifies the maintenance process, improves the maintainability and operational stability of the equipment, and reduces maintenance difficulty and cost.
Smart Images
Figure CN224028987U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of mine transportation, in particular to 40T flat car axle card fixed improvement structure. BACKGROUND
[0002] With the improvement of the production scale of coal mines, the transportation efficiency and transportation safety requirements of large mechanical equipment on the coal mine are also improved. In the prior art, many large mechanical equipment are added in the coal mine, such as ZY10000-23-50 large mining height hydraulic support, and the length, width and height of the support are 3625mm*1580mm*2300mm, and the total weight of a single unit is about 40 tons.
[0003] The existing 40T flat car axle card fixed structure, the flat car axle one is fixed, relying on the axle card assembly composed of L-shaped axle card seat and U-shaped clamping plate. The inner side of the axle card closely fits the thrust ring, the thrust ring is sleeved on the outer wall of the axle one, and is fixed with the axle one by the way of electric welding. This design prevents the axle one from moving in the axial direction and rotating in the circumferential direction, and ensures the stability of the flat car running. However, in actual working condition, a single flat car weighs 40 tons. When driving for a long time, the vehicle vibration is transmitted to the axle one, causing the thrust ring to continuously vibrate. With the increase of use time, the gap between the axle card and the thrust ring is continuously expanded. When maintaining the equipment, the staff cannot quickly make the axle card and the thrust ring fit, and the L-shaped axle card seat and the U-shaped clamping plate need to be disassembled, reassembled and spot welded to reset. This cumbersome process increases the maintenance cost and brings inconvenience to the on-site maintenance. UTILITY MODEL CONTENTS
[0004] The utility model aims at providing 40T flat car axle card fixed improvement structure, which solves the problems of 40T flat car axle card fixed structure, continuous vibration of the thrust ring caused by the vibration of the axle one during long time driving, continuous expansion of the gap between the axle card and the thrust ring, disassembly of the axle card during maintenance, reassembly and spot welding reset, and increases the operation, maintenance cost and difficulty.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: 40T flat car axle card fixed improvement structure, including axle two, two axle card assemblies arranged at intervals on the axle two, the axle two includes shaft body, plug-in top holding mechanism sleeved on the outer wall of the shaft body and slidingly matched with the shaft body, bidirectional screw slide table arranged on the shaft body, driving mechanism arranged on the outer wall of the shaft body and drivingly matched with the bidirectional screw slide table, two plug-in top holding mechanisms can move linearly on the shaft body in forward or reverse direction through the bidirectional screw slide table, two plug-in top holding mechanisms are respectively inserted and matched with two axle card assemblies, and the contact surfaces of two plug-in top holding mechanisms are closely fitted with two axle card assemblies.
[0006] Further, the shaft clamping assembly comprises a U-shaped shaft clamping plate abutting against the bottom of the outer wall of the shaft body, shaft clamping connecting plates respectively arranged on the two ends of the upper side of the U-shaped shaft clamping plate, a T-shaped block arranged between the two shaft clamping connecting plates and abutting against the upper part of the outer wall of the shaft body, and two limiting insertion holes arranged at intervals on one side of the U-shaped shaft clamping connecting plate.
[0007] Further, the plug-in top holding mechanism comprises a thrusting circular ring, two limiting insertion columns arranged on one side of the thrusting circular ring and matched with the limiting insertion holes.
[0008] Further, the outer wall of the shaft body is provided with a first groove and a second groove, the first groove and the second groove are symmetrical about the axis of the shaft body and are mirror-symmetrically distributed, the bidirectional screw slide table comprises a bidirectional threaded rod rotatably connected between the two sides inside the first groove, two threaded sleeves threadedly matched with the bidirectional threaded rod and arranged at intervals, and two sliding blocks slidably matched in the second groove and arranged at intervals, and one threaded sleeve and one sliding block are connected with the inner wall of the corresponding thrusting circular ring.
[0009] Further, the driving mechanism comprises a mounting plate arranged on the outer wall of the shaft body, a first straight bevel gear arranged on the middle part of the outer wall of the bidirectional threaded rod, a second straight bevel gear meshingly connected with the first straight bevel gear, a driving shaft connected with the second straight bevel gear, a handle connected with one end of the driving shaft and located outside the mounting plate, and a lock shaft device arranged outside the mounting plate and matched with the driving shaft.
[0010] Further, the lock shaft device comprises a locking internal thread ring arranged outside the mounting plate, a threaded connecting ring threadedly matched with the inner wall of the locking internal thread ring, and a rotating ring connected with one end of the threaded connecting ring and located between the locking internal thread ring and the handle, the rotating ring and the locking internal thread ring are gap-fitted on the outer wall of the driving shaft, and the inner wall of the threaded connecting ring is threadedly matched with the outer wall of the driving shaft.
[0011] Compared with the prior art, the 40T flat car shaft clamping fixing structure has the following beneficial effects:
[0012] When the 40T flat car shaft clamping fixing structure needs to be adjusted and maintained after long-term use, the shaft clamping assembly, the shaft body, the plug-in top holding mechanism, the bidirectional screw slide table and the driving mechanism can work cooperatively to realize the close adhesion of the thrusting circular ring and the U-shaped shaft clamping plate. The T flat car shaft clamping fixing improved structure improves the on-site maintenance efficiency, simplifies the operation process, enhances the maintainability of the equipment, and guarantees the continuous and stable operation of the flat car. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 is a sectional view of the 40T flat car shaft clamping fixing improved structure of the utility model;
[0014] Figure 2The utility model discloses a structure schematic drawing of the second axle;
[0015] Figure 3 The utility model discloses a sectional view schematic drawing of the axle clamp assembly,
[0016] Figure 4 The utility model discloses a side sectional view schematic drawing of the second axle,
[0017] Figure 5 The utility model discloses a Figure 4 The utility model discloses an enlarged schematic drawing of A place,
[0018] Figure 6 The utility model discloses a structure schematic drawing of the axle locking device. Specific implementation
[0019] Please refer to Figures 1-6 40T flat car axle clamp fixing improvement structure, including two axle clamp assemblies 1 that are arranged on the second axle 2 and are spaced, the second axle 2 includes axle body 7, the plug-in top holding mechanism that is arranged on the outer wall of axle body 7 and is slidably connected with axle body 7, the bidirectional screw slide platform that is arranged on axle body 7, the drive mechanism 16 that is arranged on the outer wall of axle body 7 and is drivingly connected with the bidirectional screw slide platform, two plug-in top holding mechanisms can be linearly moved on axle body 7 in the positive direction or the reverse direction through the bidirectional screw slide platform, two plug-in top holding mechanisms are respectively inserted and held with two axle clamp assemblies 1, and two plug-in top holding mechanisms are respectively tightly attached to the contact surface of two axle clamp assemblies 1.
[0020] The axle clamp assembly 1 includes the U-shaped axle clamp plate 4 that is abutted with the bottom of the outer wall of axle body 7, the axle clamp connecting plate 3 that is respectively connected with the upper side two ends of the U-shaped axle clamp plate 4, the T-shaped block 5 that is tightly attached between two axle clamp connecting plates 3 and is abutted with the upper part of the outer wall of axle body 7, and the two limiting insertion holes 6 that are arranged on one side of the U-shaped axle clamp connecting plate 3 and are spaced.
[0021] The plug-in top holding mechanism includes the thrusting ring 11, the two limiting insertion columns 12 that are connected on one side of the thrusting ring 11 and are inserted and held with the limiting insertion hole 6.
[0022] The outer wall of the shaft body 7 is provided with a first groove 8 and a second groove 9, the first groove 8 and the second groove 9 are symmetrical about the axis of the shaft body 7 and are mirror-symmetrically distributed; the bidirectional screw slide table comprises a bidirectional threaded rod 13 rotatably connected between the two sides inside the first groove 8, two threaded sleeves 14 threadedly matched with the bidirectional threaded rod 13 and spacedly arranged, two sliding blocks 10 slidingly matched in the second groove 9 and spacedly arranged, one threaded sleeve 14 and one sliding block 10 are connected with the inner wall of the corresponding thrust circular ring 11.
[0023] The driving mechanism 16 comprises a mounting plate 15 connected to the outer wall of the shaft body 7, a first straight bevel gear 17 connected to the outer wall of the bidirectional threaded rod 13, a second straight bevel gear 18 meshingly connected with the first straight bevel gear 17, a driving shaft 19 connected with the second straight bevel gear 18, a handle 20 connected with one end of the driving shaft 19 and located outside the mounting plate 15, and a lock shaft device provided outside the mounting plate 15 and matched with the driving shaft 19. The lock shaft device comprises a locking inner threaded ring 21 connected to the outside of the mounting plate 15, a threaded connecting ring 22 threadedly matched with the inner wall of the locking inner threaded ring 21, and a rotating ring 23 connected with one end of the threaded connecting ring 22 and located between the locking inner threaded ring 21 and the handle 20, the rotating ring 23 and the locking inner threaded ring 21 are both clearance-fitted on the outer wall of the driving shaft 19, and the inner wall of the threaded connecting ring 22 is threadedly matched with the outer wall of the driving shaft 19. When the rotating ring 23 is rotated clockwise, the threaded connecting ring 22 is screwed into the locking inner threaded ring 21 by virtue of the right-handed outer thread of the threaded connecting ring 22. At the same time, the left-handed inner thread of the threaded connecting ring 22 is matched with the corresponding thread on the driving shaft 19, thereby locking the driving shaft 19.
[0024] Working process and principle: in the use of 40T flat car axle card fixed improved structure, the shaft body 7 and the flat car body are connected and fixed, first, the T-shaped block 5 is welded on the car body, then the shaft body 7 is placed under the T-shaped block 5 and abuts with it. Then, the U-shaped axle card plate 4 is sleeved on the outside of the shaft body 7. Two axle card connecting plates 3 connected with the U-shaped axle card plate 4 are welded on the car body respectively and are fastened and connected by bolts, and the two axle card connecting plates 3 are located on the two sides of the T-shaped block 5 respectively. After the above steps are completed, the operator holds the handle 20 and rotates, the handle 20 drives the driving shaft 19 to rotate. The second straight bevel gear 18 connected with the driving shaft 19 rotates synchronously, and the second straight bevel gear 18 drives the first straight bevel gear 17 engaged with it to rotate. The rotation of the first straight bevel gear 17 drives the bidirectional threaded rod 13 to rotate. The two threaded sleeves 14 threaded with the bidirectional threaded rod 13 will move in opposite directions along the bidirectional threaded rod 13, respectively driving the two thrust circular rings 11 to move to both sides until they are tightly fitted with the two U-shaped axle card plates 4. In this process, the slider 10 connected with the thrust circular ring 11 slides in the second groove 9, playing a guiding and stabilizing role. At the same time, the two limiting insertion columns 12 connected with the thrust circular ring 11 also move deeply into the limiting insertion hole 6. Then the fixation of the shaft body 7 and the car body is completed. In the improved structure of fixation, the two thrust circular rings 11 can prevent the shaft body 7 from moving in the axial direction, and the limiting insertion column 12 inserted into the limiting insertion hole 6 can prevent the shaft body 7 from rotating in the U-shaped axle card plate 4. In order to prevent the driving shaft 19 from rotating accidentally, after the fixation of the shaft body 7 is completed, the rotating ring 23 is rotated, the rotating ring 23 drives the threaded connecting ring 22 to be threaded with the driving shaft 19 and gradually rotated into the locking inner threaded ring 21. With the threaded connecting ring 22 constantly rotating into the threaded connection with the locking inner threaded ring 21, at this time, the threaded connecting ring 22 is simultaneously threaded with the locking inner threaded ring 21 and the driving shaft 19, thereby realizing the locking of the driving shaft 19, ensuring that the driving shaft 19 will not rotate randomly.
[0025] With the growth of the use of the device, the vibration generated during the vehicle driving process will be transmitted to the shaft body 7. The vibration of the shaft body 7 will continue to drive the two thrust rings 11 to vibrate. Under the action of long-term repeated vibration, the gap between the thrust ring 11 and the U-shaped shaft clamping plate 4 may gradually increase. At this time, when the device is maintained, first rotate the rotating ring 23, the rotating ring 23 drives the threaded connecting ring 22 to rotate out of the locking inner threaded ring 21, and the locking of the driving shaft 19 is released. Then, the operator holds the handle 20 again and rotates, and the subsequent driving process is consistent with the installation and fixation. That is, the driving shaft 19 rotates to drive the second straight bevel gear 18 to rotate, the second straight bevel gear 18 drives the first straight bevel gear 17 to rotate, the first straight bevel gear 17 drives the bidirectional threaded rod 13 to rotate, and the two threaded sleeves 14 move away from each other along the bidirectional threaded rod 13, drive the two thrust rings 11 to be tightly attached to the two U-shaped shaft clamping plates 4 again. During this period, the slider 10 connected with the thrust ring 11 normally slides in the second groove 9, and the two limiting insertion columns 12 connected with the thrust ring 11 continue to move into the limiting insertion hole 6 until the initial tightly attached state is restored, and the maintenance work is completed.
[0026] In summary, the improved structure of the 40T flat car shaft clamping can quickly realize the attachment of the thrust ring 11 and the U-shaped shaft clamping plate 4, facilitate the on-site maintenance work, and improve the maintainability and use efficiency of the equipment. The above is only a preferred embodiment of the present application, and is not intended to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. 40 The improved structure of the axle clamp for 40T flatbed truck, comprising two axle shafts (2) and two axle clamp assemblies (1) arranged on the axle shafts (2) and spaced apart, characterized in that, The axle two (2) includes an axle body (7), a plug-in top holding mechanism sleeved on the outer wall of the axle body (7) and in sliding fit with the axle body (7), a bidirectional screw slide table arranged on the axle body (7), a driving mechanism (16) arranged on the outer wall of the axle body (7) and in transmission fit with the bidirectional screw slide table, the two plug-in top holding mechanisms are linearly movable on the axle body (7) in a positive direction or a reverse direction through the bidirectional screw slide table, the two plug-in top holding mechanisms are in plug-in fit with the two axle clamping assemblies (1) respectively, and the two plug-in top holding mechanisms are in close contact with the contact surfaces of the two axle clamping assemblies (1) respectively.
2. The axle clamp fixing improvement of claim 1, wherein The axle clamping assembly (1) includes a U-shaped axle clamping plate (4) in abutment with the bottom of the outer wall of the axle body (7), axle clamping connecting plates (3) respectively arranged on the two ends on the upper side of the U-shaped axle clamping plate (4), a T-shaped block (5) arranged between the two axle clamping connecting plates (3) and in abutment with the upper part of the outer wall of the axle body (7), and two limiting insertion holes (6) arranged on one side of the U-shaped axle clamping connecting plate (3) and spaced apart.
3. The axle clamp fixing improvement of claim 2, wherein The plug-in top holding mechanism includes a thrusting circular ring (11), two limiting insertion columns (12) arranged on one side of the thrusting circular ring (11) and in plug-in fit with the limiting insertion holes (6).
4. The axle clamp fixing improvement of claim 3, wherein The outer wall of the axle body (7) is provided with a first groove (8) and a second groove (9), the first groove (8) and the second groove (9) are symmetrical about the axis of the axle body (7) and are mirror-symmetrically distributed, the bidirectional screw slide table includes a bidirectional screw rod (13) rotatably connected between the two sides in the first groove (8), two threaded sleeves (14) in thread fit with the bidirectional screw rod (13) and spaced apart, and two sliding blocks (10) in sliding fit in the second groove (9) and spaced apart, and one threaded sleeve (14) and one sliding block (10) are connected with the inner wall of the corresponding thrusting circular ring (11).
5. The axle clamp securing improvement of claim 4, wherein, The driving mechanism (16) includes a mounting plate (15) arranged on the outer wall of the axle body (7), a first straight bevel gear (17) arranged on the outer wall of the bidirectional screw rod (13), a second straight bevel gear (18) in meshing connection with the first straight bevel gear (17), a driving shaft (19) connected with the second straight bevel gear (18), a handle (20) connected with one end of the driving shaft (19) and located on the outer side of the mounting plate (15), and a lock shaft device arranged on the outer side of the mounting plate (15) and in mutual fit with the driving shaft (19).
6. The axle clamp fixing improvement of claim 5, wherein The lock shaft device includes a locking internal thread ring (21) arranged on the outer side of the mounting plate (15), a threaded connecting ring (22) in thread fit with the inner wall of the locking internal thread ring (21), and a rotating ring (23) connected with one end of the threaded connecting ring (22) and located between the locking internal thread ring (21) and the handle (20), the rotating ring (23) and the locking internal thread ring (21) are in clearance fit on the outer wall of the driving shaft (19), and the inner wall of the threaded connecting ring (22) is in thread fit with the outer wall of the driving shaft (19).