Trolley steering mechanism

Abstract

The utility model relates to a trolley steering mechanism which comprises a driving assembly, a guide rail and a guide assembly. The driving assembly comprises a base, a winch, a first rolling wheel and a second rolling wheel, the output end of the winch is connected with a driving shaft, and the first rolling wheel and the second rolling wheel are arranged on the driving shaft in a sleeving mode; a driving lantern ring is arranged on the driving shaft and slides between the first rolling wheel and the second rolling wheel; first clamping blocks and second clamping blocks are arranged at the two ends of the driving lantern ring correspondingly, and the multiple first clamping blocks and the multiple second clamping blocks are arranged in the circumferential direction of the driving lantern ring at intervals. The first rolling wheel is provided with a first matching block, the first matching block is inserted between two adjacent first clamping blocks, the second rolling wheel is provided with a second matching block, and the second matching block is inserted between two adjacent second clamping blocks; the first rolling wheel is connected with one end of the trolley through a first traction rope, and the second rolling wheel is connected with the other end of the trolley through a second traction rope. The method has the effect of improving the safety and the transportation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of steering mechanisms, and in particular to a steering mechanism for a car. Background Technology

[0002] The trolley is a vehicle used to transport molten iron ladles during the tapping process; the molten iron ladles are filled with molten iron.

[0003] Traditionally, when the trolley needs to be turned, it is manually pulled. Since the trolley contains molten iron, the molten iron may shake or even splash out when the operator pulls the trolley and the applied pulling force changes, which is dangerous and has low transportation efficiency. Utility Model Content

[0004] To address the aforementioned technical problems, this application provides a vehicle steering mechanism.

[0005] The steering mechanism for a trolley provided in this application adopts the following technical solution:

[0006] A trolley steering mechanism includes a drive assembly, a guide rail, and a guide assembly. The drive assembly includes a base, a winch, a first reel, and a second reel. The output end of the winch is coaxially connected to a drive shaft, and the other end of the drive shaft is rotatably connected to the base via a support plate. Both the first and second reels are sleeved on the drive shaft. A drive collar is provided on the drive shaft, located between the first and second reels. The drive collar slides along the axial direction of the drive shaft via a sliding assembly. A first locking block and a second locking block are respectively provided at both ends of the drive collar along the axial direction. Multiple engagement blocks are spaced apart circumferentially along the drive collar; a first circular plate is coaxially connected to one end of the first winding wheel near the drive collar, and a first mating block is provided on the side of the first circular plate near the first locking block. The first mating blocks are spaced apart circumferentially along the first circular plate and can be inserted between two adjacent first locking blocks; a second circular plate is coaxially connected to one end of the second winding wheel near the drive collar, and a second mating block is provided on the side of the second circular plate near the second locking block. The second mating block is spaced apart circumferentially along the second circular plate and can be inserted between two adjacent second locking blocks;

[0007] The first reel is connected to one end of the trolley via a first traction rope, and the second reel is connected to the other end of the trolley via a second traction rope. The wheels of the trolley travel along the guide rail, and the guiding assembly is used to guide the first and second traction ropes.

[0008] Preferably, the sliding assembly includes a rocker arm, a cylinder, a fixed rod, and a limiting rod. A mating groove is provided in the middle of the axial direction of the drive collar. One end of the rocker arm is engaged in the mating groove, and the other end of the rocker arm is hinged to the piston rod end of the cylinder. The end of the cylinder away from the rocker arm is connected to the base through the fixed rod. The fixed rod is vertically fixed to the base. The cylinder is horizontally arranged and hinged to the top of the fixed rod. The limiting rod is vertically fixed to the base, and the middle of the rocker arm in the length direction is rotatably connected to the limiting rod.

[0009] Preferably, the guide rail is U-shaped, and the guide rail includes an arc segment and straight segments located on both sides of the arc segment. The drive component is located between the two straight segments and in the middle of the length direction of the straight segments.

[0010] Preferably, the guiding assembly includes a guide roller and a support base, wherein the guide roller is rotatably connected to the support base.

[0011] Preferably, the guide rail has guide components for both the arc-shaped section and the straight section. Multiple sets of guide components are arranged at intervals along the arc-shaped section. A set of guide components is arranged in the middle of each straight section. Four sets of guide components located on a straight line are arranged between two straight sections. The guide rollers of the guide components located in the arc-shaped section and between the two straight sections are located on the side of the support base away from the drive component. The guide rollers of the guide components located in the straight section are located on the side of the support base closer to the drive component.

[0012] The first traction rope abuts against the side of the guide roller away from the drive assembly at the arc section, abuts against the side of the guide roller near the drive assembly at the straight section, and abuts against the side of the guide rollers of two adjacent sets of guide assemblies away from the drive assembly between the straight sections.

[0013] The second traction rope abuts against the side of the guide roller away from the drive assembly at the arc section, against the side of the guide roller near the drive assembly at the straight section, and against the side of the guide rollers of two other adjacent sets of guide assemblies away from the drive assembly between the straight sections.

[0014] Preferably, the vehicle platform of the trolley is located above the guide assembly, and a support column is provided on the bottom surface of the vehicle platform. The first traction rope and the second traction rope are both movably connected to the support column through a connecting rod. One end of the connecting rod is hinged to the support column, and the other end of the connecting rod is hinged to the corresponding first traction rope or second traction rope.

[0015] Preferably, the guide rail includes two parallel tracks, the wheels of the trolley are located on both sides of the trolley with two on each side, the two wheels on both sides of the trolley travel on the same track, the wheels of the trolley are I-beam wheels, and the track is engaged between the two side plates of the I-beam wheel axial direction.

[0016] In summary, this application includes the following beneficial technical effects:

[0017] When the trolley moves from the straight section to the curved section of the guide rail, the first locking block of the drive collar engages with the first mating block of the first winding wheel, or the second locking block of the drive collar engages with the second mating block of the second winding wheel. Then, the winch is started, causing the drive shaft to rotate. When the first winding wheel rotates to wind up the first traction rope, the second traction rope on the second winding wheel unwinds. When the second winding wheel rotates to wind up the second traction rope, the second traction rope on the first winding wheel unwinds. This allows the trolley to move and turn stably, and the trolley can turn automatically, improving the safety of the workers and the efficiency of transportation. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of a car steering mechanism in an embodiment of this application.

[0019] Figure 2 This is used to illustrate the embodiments of this application. Figure 1 A magnified structural diagram of point A in the middle.

[0020] Figure 3 This is used to illustrate the embodiments of this application. Figure 1 A magnified structural diagram at point B in the middle.

[0021] Figure 4 This is used to illustrate the embodiments of this application. Figure 1 A magnified structural diagram at point C.

[0022] Figure 5 This is used to illustrate the embodiments of this application. Figure 1 A magnified structural diagram at point D.

[0023] Figure 6 This is a structural schematic diagram used in the embodiments of this application to illustrate the first mating block and the second mating block.

[0024] Figure 7 This is a cross-sectional structural diagram of the limiting ring plate and the limiting ring groove used in the embodiments of this application.

[0025] Figure 8 This is a structural schematic diagram used to illustrate the support and connecting rod in the embodiments of this application.

[0026] Explanation of reference numerals in the attached drawings: 1. Drive assembly; 11. Base; 12. Winch; 13. First reel; 131. First circular plate; 132. First mating block; 14. Second reel; 141. Second circular plate; 142. Second mating block; 15. Drive shaft; 151. Limiting ring plate; 152. Limiting ring groove; 16. Support plate; 17. Drive collar; 171. First locking block; 172. Second locking block; 173. Mating ring groove; 2. Guide rail; 21. Arc-shaped section; 22. Straight section; 23. Track; 3. Guide assembly; 31. Guide roller; 32. Support seat; 4. Sliding assembly; 41. Swing rod; 42. Cylinder; 43. Fixed rod; 44. Limiting rod; 5. First traction rope; 6. Second traction rope; 7. Trolley; 71. Car platform; 711. Support column; 712. Connecting rod; 72. Wheel. Detailed Implementation

[0027] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0028] This application discloses a steering mechanism for a small vehicle.

[0029] Reference Figure 1-8 The trolley steering mechanism includes a drive assembly 1, a guide rail 2, and a guide assembly 3.

[0030] The drive assembly 1 includes a base 11, a winch 12, a first reel 13, and a second reel 14. The winch 12 is fixedly installed on the base 11. A drive shaft 15 is coaxially connected to the output end of the winch 12. The other end of the drive shaft 15 is rotatably connected to the base 11 through a support plate 16. The first reel 13 and the second reel 14 are both sleeved on the drive shaft 15.

[0031] A drive collar 17 is provided on the drive shaft 15. The drive collar 17 is located between the first winding wheel 13 and the second winding wheel 14. The drive collar 17 slides along the axial direction of the drive shaft 15 through the sliding assembly 4.

[0032] The drive collar 17 has a first locking block 171 and a second locking block 172 at its two ends along its axial direction. Multiple first locking blocks 171 and second locking blocks 172 are spaced apart along the circumference of the drive collar 17. A first circular plate 131 is coaxially connected to the end of the first winding wheel 13 near the drive collar 17. A first mating block 132 is provided on the surface of the first circular plate 131 near the first locking block 171. The first mating blocks 132 are spaced one circle around the circumference of the first circular plate 131 and can be inserted between two adjacent first locking blocks 171. A second circular plate 141 is coaxially connected to the end of the second winding wheel 14 near the drive collar 17. A second mating block 142 is provided on the surface of the second circular plate 141 near the second locking block 172. The second mating blocks 142 are spaced one circle around the circumference of the second circular plate 141 and can be inserted between two adjacent second locking blocks 172.

[0033] A limiting ring plate 151 is connected to the outer peripheral wall of the drive shaft 15. The inner peripheral walls of the first winding wheel 13 and the second winding wheel 14 are provided with limiting ring grooves 152. The limiting ring plate 151 is locked in the corresponding limiting ring groove 152 to prevent the first winding wheel 13 and the second winding wheel 14 from axial displacement.

[0034] The first reel 13 is connected to one end of the trolley 7 via the first traction rope 5, and the second reel 14 is connected to the other end of the trolley 7 via the second traction rope 6. The wheels 72 of the trolley 7 travel along the guide rail 2, and the guide assembly 3 is used to guide the first traction rope 5 and the second traction rope 6.

[0035] The platform 71 of the trolley 7 is located above the guide assembly 3, so that the trolley 7 will not interfere when passing through the guide assembly 3. A support column 711 is provided on the bottom surface of the platform 71 of the trolley 7. The first traction rope 5 and the second traction rope 6 are both movably connected to the support column 711 through the connecting rod 712. One end of the connecting rod 712 is hinged to the support column 711, and the other end of the connecting rod 712 is hinged to the corresponding first traction rope 5 or second traction rope 6.

[0036] The sliding assembly 4 includes a rocker arm 41, a cylinder 42, a fixed rod 43, and a limiting rod 44. A mating ring groove 173 is provided in the middle of the drive collar 17 along the axial direction. One end of the rocker arm 41 is locked in the mating ring groove 173, and the other end of the rocker arm 41 is hinged to the piston rod end of the cylinder 42. The end of the cylinder 42 away from the rocker arm 41 is connected to the base 11 through the fixed rod 43. The fixed rod 43 is vertically fixed on the base 11. The cylinder 42 is horizontally set and is hinged to the top of the fixed rod 43. The limiting rod 44 is vertically fixed on the base 11, and the middle of the rocker arm 41 along the length direction is rotatably connected to the limiting rod 44.

[0037] When the first reel 13 needs to rotate, the piston rod of the cylinder 42 retracts, and the end of the swing rod 41 connected to the cylinder 42 moves toward the direction closer to the second reel 14. The end of the swing rod 41 located in the mating ring groove 173 moves toward the direction closer to the first reel 13. The first locking block 171 of the drive collar 17 engages with the first mating block 132 of the first reel 13. At this time, the winch 12 drives the first reel 13 to rotate. The first reel 13 winds up the first traction rope 5, and the second reel 14 rotates freely. The second reel 14 winds up the second traction rope 6 in accordance with the rotation speed of the first reel 13.

[0038] When the second reel 14 needs to rotate, the piston rod of the cylinder 42 extends, and the end of the swing rod 41 connected to the cylinder 42 moves toward the direction closer to the first reel 13. The end of the swing rod 41 located in the mating ring groove 173 moves toward the direction closer to the second reel 14. The second locking block 172 of the drive collar 17 engages with the second mating block 142 of the second reel 14. At this time, the winch 12 drives the second reel 14 to rotate, and the second reel 14 winds up the second traction rope 6. The first reel 13 rotates freely, and the first reel 13 winds up the first traction rope 5 in coordination with the rotation speed of the second reel 14.

[0039] The guide rail 2 is U-shaped and includes an arc segment 21 and straight segments 22 located on both sides of the arc segment 21. The drive assembly 1 is located between the two straight segments 22 and in the middle of the length direction of the straight segments 22.

[0040] The guide assembly 3 includes a guide roller 31 and a support base 32, with the guide roller 31 and the support base 32 being rotatably connected.

[0041] The guide rail 2 has guide components 3 on both the arc-shaped section 21 and the straight section 22. Multiple sets of guide components 3 are arranged at intervals along the arc-shaped section 21. A set of guide components 3 is arranged in the middle of each straight section 22. Four sets of guide components 3 are arranged on a straight line between two straight sections 22. The guide rollers 31 of the guide components 3 located between the arc-shaped section 21 and the two straight sections 22 are located on the side of the support 32 away from the drive component 1. The guide rollers 31 of the guide components 3 located in the straight section 22 are located on the side of the support 32 closer to the drive component 1, so that the first traction rope 5 and the second traction rope 6 will not detach from the guide components 3 whether they are being wound up or unwound.

[0042] The first traction rope 5 abuts against the side of the guide roller 31 at the arc section 21 away from the drive assembly 1, abuts against the side of the guide roller 31 at the straight section 22 close to the drive assembly 1, and abuts against the side of the guide roller 31 of two adjacent sets of guide assemblies 3 between the straight sections 22 away from the drive assembly 1.

[0043] The second traction rope 6 abuts against the side of the guide roller 31 at the arc section 21 away from the drive assembly 1, abuts against the side of the guide roller 31 at the straight section 22 close to the drive assembly 1, and abuts against the side of the guide roller 31 of the other two adjacent sets of guide assemblies 3 between the straight sections 22 away from the drive assembly 1.

[0044] The guide rail 2 includes two parallel tracks 23. The wheels 72 of the trolley 7 are located on both sides of the trolley 7, with two on each side. The two wheels 72 on both sides of the trolley 7 travel on the same track 23. The wheels 72 of the trolley 7 are I-shaped wheels. The track 23 is positioned between the two side plates along the axial direction of the I-shaped wheels.

[0045] The implementation principle of a car steering mechanism in this application embodiment is as follows:

[0046] When the trolley 7 moves from the straight section 22 of the guide rail 2 to the arc section 21, the first locking block 171 of the drive collar 17 engages with the first mating block 132 of the first winding wheel 13, or the second locking block 172 of the drive collar 17 engages with the second mating block 142 of the second winding wheel 14. Then, the winch 12 is started, causing the drive shaft 15 to rotate. When the first winding wheel 13 rotates to wind up the first traction rope 5, the second traction rope 6 on the second winding wheel 14 is unwound. When the second winding wheel 14 rotates to wind up the second traction rope 6, the second traction rope 6 on the first winding wheel 13 is unwound, enabling the trolley 7 to move and turn stably. The trolley 7 can turn automatically, improving the safety of the workers and the efficiency of transportation.

[0047] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A steering mechanism for a trolley, characterized in that: The system includes a drive assembly, a guide rail, and a guide assembly. The drive assembly includes a base, a winch, a first reel, and a second reel. A drive shaft is coaxially connected to the output end of the winch, and the other end of the drive shaft is rotatably connected to the base via a support plate. Both the first and second reels are sleeved on the drive shaft. A drive collar is provided on the drive shaft, located between the first and second reels. The drive collar slides along the axial direction of the drive shaft via a sliding assembly. A first locking block and a second locking block are respectively provided at both ends of the drive collar along the drive shaft. Multiple rings are spaced circumferentially; the first winding wheel is coaxially connected to a first circular plate at one end near the drive collar, and a first mating block is provided on the side of the first circular plate near the first locking block. The first mating block is spaced circumferentially around the first circular plate and can be inserted between two adjacent first locking blocks. The second winding wheel is coaxially connected to a second circular plate at one end near the drive collar, and a second mating block is provided on the side of the second circular plate near the second locking block. The second mating block is spaced circumferentially around the second circular plate and can be inserted between two adjacent second locking blocks. The first reel is connected to one end of the trolley via a first traction rope, and the second reel is connected to the other end of the trolley via a second traction rope. The wheels of the trolley travel along the guide rail, and the guiding assembly is used to guide the first and second traction ropes.

2. The trolley steering mechanism according to claim 1, characterized in that: The sliding assembly includes a rocker arm, a cylinder, a fixed rod, and a limiting rod. A mating groove is provided in the middle of the axial direction of the driving collar. One end of the rocker arm is engaged in the mating groove, and the other end of the rocker arm is hinged to the piston rod end of the cylinder. The end of the cylinder away from the rocker arm is connected to the base through the fixed rod. The fixed rod is vertically fixed to the base. The cylinder is horizontally positioned and hinged to the top of the fixed rod. The limiting rod is vertically fixed to the base, and the middle of the rocker arm in the length direction is rotatably connected to the limiting rod.

3. The trolley steering mechanism according to claim 1, characterized in that: The guide rail is U-shaped and includes an arc segment and straight segments on both sides of the arc segment. The drive component is located between the two straight segments and in the middle of the length direction of the straight segments.

4. The trolley steering mechanism according to claim 1, characterized in that: The guiding assembly includes a guide roller and a support base, and the guide roller is rotatably connected to the support base.

5. The trolley steering mechanism according to claim 4, characterized in that: The guide rail has guide components in both the arc-shaped section and the straight section. Multiple sets of guide components are arranged at intervals along the arc-shaped section. A set of guide components is arranged in the middle of each straight section. Four sets of guide components are arranged in a straight line between two straight sections. The guide rollers of the guide components located in the arc-shaped section and between the two straight sections are located on the side of the support base away from the drive component. The guide rollers of the guide components located in the straight section are located on the side of the support base closer to the drive component. The first traction rope abuts against the side of the guide roller away from the drive assembly at the arc section, abuts against the side of the guide roller near the drive assembly at the straight section, and abuts against the side of the guide rollers of two adjacent sets of guide assemblies away from the drive assembly between the straight sections. The second traction rope abuts against the side of the guide roller away from the drive assembly at the arc section, against the side of the guide roller near the drive assembly at the straight section, and against the side of the guide rollers of two other adjacent sets of guide assemblies away from the drive assembly between the straight sections.

6. The trolley steering mechanism according to claim 1, characterized in that: The trolley's platform is located above the guide assembly, and a support column is provided on the bottom surface of the trolley's platform. The first traction rope and the second traction rope are both movably connected to the support column through a connecting rod. One end of the connecting rod is hinged to the support column, and the other end of the connecting rod is hinged to the corresponding first traction rope or second traction rope.

7. The trolley steering mechanism according to claim 1, characterized in that: The guide rail includes two parallel tracks. The wheels of the trolley are located on both sides of the trolley, with two on each side. The two wheels on both sides of the trolley travel on the same track. The wheels of the trolley are I-beam wheels. The track is positioned between the two side plates along the axial direction of the I-beam wheels.

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