Cart traveling mechanism

Abstract

The utility model discloses a cart traveling mechanism which comprises a mounting plate, a plurality of rollers are arranged at the bottom of the mounting plate, rotating shafts are fixed in the rollers, two supporting plates are rotatably connected to the outer side wall of each rotating shaft, and the tops of the supporting plates are fixedly connected with the bottom of the mounting plate. According to the cart walking mechanism, an air pump, a first electromagnetic three-way valve and a second electromagnetic three-way valve are started, so that air enters an air pipe and then enters an air cylinder, the air cylinder pushes a rotating block on the lower portion to move, the rotating block drives a middle fixing rod to move, the middle fixing rod drives a rotating plate to rotate, and the rotating plate rotates. A rotating plate drives a rotating shaft and a roller to rotate, a middle fixing rod drives a connecting rod to rotate, so that the roller rotates, then a second electromagnetic three-way valve is started to enable gas to enter an air pipe above, the gas enters an air cylinder, an output shaft of the air cylinder returns to the original state, the roller can rotate by one circle, and the device can be moved.

Description

Technical Field

[0001] The utility model relates to the technical field of traveling mechanisms, in particular to a traveling mechanism for a large vehicle. Background Art

[0002] At present, in modern automated container terminals, horizontal transport vehicles (mostly automatic guided vehicles) cannot enter the container yard area for operation, which directly affects the yard efficiency. Therefore, how to design more efficient, stable and reliable container yard equipment is of great engineering significance to improving the terminal yard efficiency and developing automated container terminals. For this reason, rail-mounted container cranes came into being.

[0003] After searching, the existing patent (publication number: CN107161853A) discloses a trolley travel mechanism, including a frame and a plurality of wheels, characterized in that: a wheel frame is hinged between the frame and each corresponding wheel, there is a vertical deviation between the center of the wheel and the corresponding hinge point on the frame, and two adjacent wheel frames are connected by a balancing link. The present invention reduces the deadweight of the trolley mechanism to the maximum extent and reduces the height, further improving the running stability and driving ability.

[0004] Each wheel can be used as a driving wheel to improve the driving ability, that is, the hinge is used to replace the traditional crankshaft deviation device, which overcomes the disadvantage of limited motor installation space in the traditional structure. However, it has its shortcomings. In fact, it is driven by a motor and equipped with a large reducer, so it still occupies a large space. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a traveling mechanism for a large vehicle, which solves the problems raised by the above-mentioned background technology.

[0006] To achieve the above objectives, the utility model is implemented through the following technical solutions: a trolley walking mechanism includes a mounting plate, a plurality of rollers are provided at the bottom of the mounting plate, a rotating shaft is fixed inside the roller, the outer side wall of the rotating shaft is rotatably connected to two support plates, the top of the support plate and the bottom of the mounting plate are fixedly connected, two driving mechanisms are provided below the mounting plate, the driving mechanisms include a plurality of connecting rods, a plurality of fixed rods, a plurality of rotating plates, two cylinders, four air pipes, a three-way pipe, a first electromagnetic three-way valve, two second electromagnetic three-way valves and an air pump, a brake mechanism is provided below the mounting plate, the brake mechanism includes a fixed cylinder, a brake disc and a rotating disc.

[0007] Preferably, the inner wall of the rotating plate and the outer wall of the rotating shaft are fixedly connected, the end of the fixing rod close to the roller and the end of the rotating plate away from the roller are fixedly connected, the inner wall of the connecting rod and the outer wall of the fixing rod are rotatably connected, the bottom of the mounting plate is located at the front and rear of the roller and two fixing plates are fixed thereon, the outer wall of the fixing rod between the two fixing plates and in the middle is rotatably connected with a rotating block, and the two ends of the cylinder are respectively fixedly connected to the opposite sides of the two rotating blocks.

[0008] Preferably, the right side of the mounting plate and the left side of the air pump are fixedly connected, the top of the air pump and the bottom of the first electromagnetic three-way valve are fixedly connected, the top of the first electromagnetic three-way valve and the bottom of the three-way pipe are fixedly connected, the upper two ends of the three-way pipe are respectively fixedly connected to the opposite sides of the two second electromagnetic three-way valves, the other two ends of the second electromagnetic three-way valve are respectively fixedly connected to the right ends of the two air pipes, and the left end of the air pipe is fixedly connected to the cylinder.

[0009] Preferably, the fixed cylinder is sleeved on the outer side of the rotating shaft on the right side, the fixed cylinder is fixedly connected to the front surface of the support plate at the right rear, the inner wall of the fixed cylinder is rotatably connected to the outer wall of the rotating disk, the brake disc is located in front of the rotating disk, and the brake disc is internally slidably connected with a plurality of limit rods, the rear end of the limit rod is fixedly connected to the inner rear surface of the fixed cylinder, and a plurality of first springs are sleeved on the outer side of the limit rod, and the two ends of the first spring are respectively fixedly connected to the rear surface of the brake disc and the inner rear surface of the fixed cylinder.

[0010] Preferably, an outer side wall of the fixing tube is provided with an opening, a fixing block is fixed to the outer side wall of the rotating disk, a pull rope is fixed to the right side of the fixing block, and the other end of the pull rope passes through the fixing tube.

[0011] Preferably, a rectangular block is fixed on the right side of the mounting plate, a circular hole is opened inside the rectangular block, a fixing ring is fixed inside the circular hole, a second spring is fixed to the bottom of the fixing ring, a piston is fixed to the other end of the second spring, a moving rod is fixed to the bottom of the piston, the bottom end of the moving rod passes through the rectangular block, the top end of the pull rope passes through the rectangular block and is fixedly connected to the bottom end of the moving rod, a limiting sleeve is provided on the outer side of the pull rope, and the two ends of the limiting sleeve are respectively fixedly connected to the outer side walls of the rectangular block and the fixing cylinder, a connecting pipe is fixed to the rear end of the first electromagnetic three-way valve, and the bottom end of the connecting pipe is fixedly connected to the top of the rectangular block.

[0012] Beneficial Effects

[0013] The utility model provides a traveling mechanism for a large vehicle. Compared with the prior art, it has the following beneficial effects:

[0014] 1. The traveling mechanism of the trolley is provided with a driving mechanism, and the air pump and the first electromagnetic three-way valve and the second electromagnetic three-way valve are started, so that the gas enters the air pipe, and then the gas enters the inside of the cylinder, so that the cylinder pushes the lower rotating block to move, and the rotating block moves with the middle fixed rod, and the middle fixed rod rotates the rotating plate, and the rotating plate rotates with the rotating shaft and the roller, and the middle fixed rod rotates with the connecting rod, so that the roller rotates, and then the second electromagnetic three-way valve is started to allow the gas to enter the upper air pipe, and the gas enters the cylinder, so that the output shaft of the cylinder returns to its original state, so that the roller can rotate one circle, and the device can be moved, and the flow rate of the gas is controlled by the electromagnetic valve, thereby controlling the speed of movement.

[0015] 2. The traveling mechanism of the trolley is provided with a brake mechanism, which starts the first electromagnetic three-way valve, and the gas enters the connecting pipe. The gas pushes the piston to move, and the piston moves the moving rod. The moving rod pulls the pull rope, and the pull rope pulls the fixed block. The fixed block rotates the turntable, and the turntable squeezes the brake disc to move, and the brake disc contacts the roller to brake. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic cross-sectional structure diagram of a rectangular block in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the brake mechanism in the utility model;

[0019] Figure 4 It is a schematic cross-sectional structural diagram of the cylinder in the utility model.

[0020] In the figure: 1. rotating plate; 2. rotating shaft; 3. fixing rod; 4. connecting rod; 5. rotating block; 6. cylinder; 7. second electromagnetic three-way valve; 8. air pipe; 9. fixing plate; 10. brake mechanism; 11. first electromagnetic three-way valve; 12. three-way pipe; 13. supporting plate; 14. mounting plate; 15. driving mechanism; 16. rectangular block; 17. fixing ring; 18. second spring; 19. piston; 20. round hole; 21. limiting sleeve; 22. pull rope; 23. moving rod; 24. limiting rod; 25. fixing cylinder; 26. brake disc; 27. first spring; 28. opening; 29. ​​rotating disk; 30. fixing block; 31. air pump; 32. roller; 33. connecting pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 The utility model provides a technical solution: a trolley walking mechanism includes a mounting plate 14, a plurality of rollers 32 are arranged at the bottom of the mounting plate 14, a rotating shaft 2 is fixed inside the roller 32, the outer wall of the rotating shaft 2 is rotatably connected to two support plates 13, the top of the support plate 13 and the bottom of the mounting plate 14 are fixedly connected, and two driving mechanisms 15 are arranged below the mounting plate 14, and the driving mechanism 15 includes a plurality of connecting rods 4, a plurality of fixing rods 3, a plurality of rotating plates 1, two cylinders 6, four air pipes 8, a three-way pipe 12, a first electromagnetic three-way valve 11, and two second electromagnetic A three-way valve 7 and an air pump 31 are provided below the mounting plate 14. A brake mechanism 10 is provided below the mounting plate 14. The brake mechanism 10 includes a fixed cylinder 25, a brake disc 26 and a rotating disc 29. The inner wall of the rotating plate 1 is fixedly connected to the outer wall of the rotating shaft 2. The end of the fixed rod 3 close to the roller 32 is fixedly connected to the end of the rotating plate 1 away from the roller 32. The inner wall of the connecting rod 4 is rotatably connected to the outer wall of the fixed rod 3. The bottom of the mounting plate 14 is located in front and behind the roller 32 and two fixed plates 9 are fixed thereto. A rotating block 5 is rotatably connected between the two fixed plates 9 and the outer wall of the middle fixed rod 3. The cylinder The two ends of 6 are fixedly connected to the opposite sides of the two rotating blocks 5, the right side of the mounting plate 14 is fixedly connected to the left side of the air pump 31, the top of the air pump 31 is fixedly connected to the bottom of the first electromagnetic three-way valve 11, the top of the first electromagnetic three-way valve 11 is fixedly connected to the bottom of the three-way pipe 12, the upper two ends of the three-way pipe 12 are fixedly connected to the opposite sides of the two second electromagnetic three-way valves 7, the other two ends of the second electromagnetic three-way valve 7 are fixedly connected to the right ends of the two air pipes 8, the left end of the air pipe 8 is fixedly connected to the cylinder 6, the air pump 31 and the first electromagnetic three-way valve 11 and The second electromagnetic three-way valve 7, so that the gas enters the air pipe 8, and then the gas enters the inside of the cylinder 6, so that the cylinder 6 pushes the lower rotating block 5 to move, the rotating block 5 moves with the middle fixed rod 3, the middle fixed rod 3 rotates with the rotating plate 1, the rotating plate 1 rotates with the rotating shaft 2 and the roller 32, the middle fixed rod 3 rotates with the connecting rod 4, so that the roller 32 rotates, and then the second electromagnetic three-way valve 7 is started to allow the gas to enter the upper air pipe 8, the gas enters the cylinder 6, and the output shaft of the cylinder 6 returns to its original state, so that the roller 32 can rotate one circle, and the device can be moved.

[0023] Furthermore, the fixed cylinder 25 is sleeved on the outer side of the right rotating shaft 2, the fixed cylinder 25 and the front surface of the right rear support plate 13 are fixedly connected, the inner side wall of the fixed cylinder 25 is rotatably connected to the outer side wall of the rotating disk 29, the brake disc 26 is located in front of the rotating disk 29, and a plurality of limiting rods 24 are slidably connected inside the brake disc 26, the rear end of the limiting rod 24 is fixedly connected to the inner rear surface of the fixed cylinder 25, and a plurality of first springs 27 are sleeved on the outer side of the limiting rod 24, and the two ends of the first spring 27 are respectively fixedly connected to the rear surface of the brake disc 26 and the inner rear surface of the fixed cylinder 25, an opening 28 is provided on the outer side wall of the fixed cylinder 25, a fixing block 30 is fixed to the outer side wall of the rotating disk 29, a pull rope 22 is fixed to the right side of the fixing block 30, and the other end of the pull rope 22 passes through the fixed cylinder 25, a rectangular block 16 is fixed to the right side of the mounting plate 14, a circular hole 20 is provided inside the rectangular block 16, and a fixing ring 17 is fixed inside the circular hole 20, A second spring 18 is fixed to the bottom of the fixed ring 17, and a piston 19 is fixed to the other end of the second spring 18. A moving rod 23 is fixed to the bottom of the piston 19. The bottom end of the moving rod 23 passes through the rectangular block 16, and the top of the pull rope 22 passes through the rectangular block 16 and is fixedly connected to the bottom end of the moving rod 23. A limiting sleeve 21 is sleeved on the outer side of the pull rope 22, and the two ends of the limiting sleeve 21 are respectively fixedly connected to the outer side walls of the rectangular block 16 and the fixed cylinder 25. A connecting pipe 33 is fixed to the rear end of the first electromagnetic three-way valve 11, and the bottom end of the connecting pipe 33 is fixedly connected to the top of the rectangular block 16. The first electromagnetic three-way valve 11 is started, and gas enters the connecting pipe 33. The gas pushes the piston 19 to move, and the piston 19 moves with the moving rod 23. The moving rod 23 pulls the pull rope 22, and the pull rope 22 pulls the fixed block 30. The fixed block 30 rotates with the turntable 29, and the turntable 29 squeezes the brake disc 26 to move, and the brake disc 26 contacts the roller 32 to brake.

[0024] During operation, the air pump 31 and the first electromagnetic three-way valve 11 and the second electromagnetic three-way valve 7 are started, so that the gas enters the air pipe 8, and then the gas enters the interior of the cylinder 6, so that the cylinder 6 pushes the lower rotating block 5 to move, the rotating block 5 moves with the middle fixed rod 3, the middle fixed rod 3 rotates with the rotating plate 1, the rotating plate 1 rotates with the rotating shaft 2 and the roller 32, the middle fixed rod 3 rotates with the connecting rod 4, so that the roller 32 rotates, and then the second electromagnetic three-way valve 7 is started to allow the gas to enter the upper air pipe 8, the gas enters the cylinder 6, and the output shaft of the cylinder 6 returns to its original state, so that the roller 32 can rotate one circle, and the device can be moved.

[0025] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions. The sentence "includes an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. The traveling mechanism of the carriage includes a mounting plate (14), Features: A plurality of rollers (32) are provided at the bottom of the mounting plate (14), a rotating shaft (2) is fixed inside the roller (32), the outer wall of the rotating shaft (2) is rotatably connected to two support plates (13), the top of the support plate (13) is fixedly connected to the bottom of the mounting plate (14), two driving mechanisms (15) are provided below the mounting plate (14), the driving mechanisms (15) include a plurality of connecting rods (4), a plurality of fixing rods (3), a plurality of rotating plates (1), two cylinders (6), four air pipes (8), a three-way pipe (12), a first electromagnetic three-way valve (11), two second electromagnetic three-way valves (7) and an air pump (31), a brake mechanism (10) is provided below the mounting plate (14), and the brake mechanism (10) includes a fixing cylinder (25), a brake disc (26) and a rotating disc (29).

2. The traveling mechanism of the trolley according to claim 1, Features: The inner wall of the rotating plate (1) and the outer wall of the rotating shaft (2) are fixedly connected, one end of the fixing rod (3) close to the roller (32) and the end of the rotating plate (1) away from the roller (32) are fixedly connected, the inner wall of the connecting rod (4) and the outer wall of the fixing rod (3) are rotatably connected, the bottom of the mounting plate (14) is located in front and behind the roller (32) and is fixed with two fixing plates (9), the outer wall of the fixing rod (3) between the two fixing plates (9) and in the middle is rotatably connected with a rotating block (5), and the two ends of the cylinder (6) are respectively fixedly connected to the opposite sides of the two rotating blocks (5).

3. The traveling mechanism of the vehicle according to claim 2, Features: The right side of the mounting plate (14) is fixedly connected to the left side of the air pump (31), the top of the air pump (31) is fixedly connected to the bottom of the first electromagnetic three-way valve (11), the top of the first electromagnetic three-way valve (11) is fixedly connected to the bottom of the three-way pipe (12), the upper two ends of the three-way pipe (12) are respectively fixedly connected to the opposite sides of the two second electromagnetic three-way valves (7), the other two ends of the second electromagnetic three-way valve (7) are respectively fixedly connected to the right ends of the two air pipes (8), and the left end of the air pipe (8) is fixedly connected to the cylinder (6).

4. The traveling mechanism of the vehicle according to claim 3, Features: The fixed cylinder (25) is sleeved on the outer side of the rotating shaft (2) on the right side, the fixed cylinder (25) is fixedly connected to the front surface of the right rear support plate (13), the inner side wall of the fixed cylinder (25) is rotatably connected to the outer side wall of the rotating disk (29), the brake disc (26) is located in front of the rotating disk (29), and the brake disc (26) is slidably connected to the inside of a plurality of limiting rods (24), the rear end of the limiting rod (24) is fixedly connected to the inner rear surface of the fixed cylinder (25), and the outer side of the limiting rod (24) is sleeved with a plurality of first springs (27), and the two ends of the first spring (27) are respectively fixedly connected to the rear surface of the brake disc (26) and the inner rear surface of the fixed cylinder (25).

5. The traveling mechanism of the trolley according to claim 4, Features: The outer wall of the fixed cylinder (25) is provided with an opening (28), the outer wall of the rotating disk (29) is fixed with a fixed block (30), a pull rope (22) is fixed on the right side of the fixed block (30), and the other end of the pull rope (22) passes through the fixed cylinder (25).

6. The traveling mechanism of the trolley according to claim 5, Features: A rectangular block (16) is fixed on the right side of the mounting plate (14), a circular hole (20) is opened inside the rectangular block (16), a fixing ring (17) is fixed inside the circular hole (20), a second spring (18) is fixed at the bottom of the fixing ring (17), a piston (19) is fixed at the other end of the second spring (18), a moving rod (23) is fixed at the bottom of the piston (19), and the bottom end of the moving rod (23) passes through the rectangular block (16). The top end of the pull rope (22) passes through the rectangular block (16) and is fixedly connected to the bottom end of the moving rod (23); a limit sleeve (21) is provided on the outer side of the pull rope (22); the two ends of the limit sleeve (21) are respectively fixedly connected to the outer side walls of the rectangular block (16) and the fixed cylinder (25); a connecting pipe (33) is fixedly provided at the rear end of the first electromagnetic three-way valve (11); the bottom end of the connecting pipe (33) is fixedly connected to the top of the rectangular block (16).

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