CN213007469U

CN213007469U - Connecting rod synchronous lifting type steering wheel suspension structure

Info

Publication number: CN213007469U
Application number: CN202021365272.9U
Authority: CN
Inventors: 黄涛; 陈晓; 李长宏; 赵双望
Original assignee: Shanghai Hictrl Automation Technology Co ltd
Current assignee: Shanghai Hictrl Automation Technology Co ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-04-20
Anticipated expiration: 2030-07-13

Abstract

The utility model provides a synchronous over-and-under type helm suspended structure of connecting rod, including frame and helm subassembly, frame difference fixed mounting is in automobile body side surface bottom, helm subassembly both sides are respectively through the one end of two connecting rods of first round pin hub connection, the other end of two connecting rods all is in the frame through second round pin hub connection, two connecting rod parallel arrangement, and be connected through the connecting plate between two connecting rods, the connecting plate is fixed at the both sides face of two connecting rods through third round pin axle and fourth round pin hub connection respectively, third round pin axle surface still is connected with the one end of spring axle, the other end of spring axle passes the frame and through screw thread fixedly connected with set nut, the spring has been cup jointed to the spring axle surface, the both ends of spring are contradicted. The utility model overcomes prior art's is not enough, can let the wheel atress even, improves steering wheel life, can also reduce the impact to equipment, reduces the vibration range of equipment, guarantees equipment even running.

Description

Connecting rod synchronous lifting type steering wheel suspension structure

Technical Field

The utility model relates to a steering wheel technical field, concretely relates to synchronous over-and-under type steering wheel suspended structure of connecting rod.

Background

With the increasingly wide application of the steering wheel on the AGV, various steering wheel suspension structures appear, most of the steering wheel suspension structures adopt a one-way suspension structure, but the one-way suspension structure has a lateral deflection moment, so that the stress on the wheel is uneven, the stress on one side of the wheel is too concentrated, the bearing capacity of the walking wheel is greatly reduced, and the service life of the steering wheel is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a synchronous over-and-under type rudderwheel suspended structure of connecting rod has overcome the not enough of prior art, and reasonable in design can let the wheel atress even, improves rudderwheel life, can also reduce the impact to equipment, reduces the vibration range of equipment, guarantees equipment even running.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:

the utility model provides a synchronous over-and-under type helm suspended structure of connecting rod, includes frame and helm subassembly, frame fixed mounting is in automobile body side surface bottom respectively, helm subassembly both sides are respectively through the one end of two connecting rods of first round pin hub connection, and the other end of two connecting rods all is through second round pin hub connection in the frame, two connecting rod parallel arrangement, and is connected through the connecting plate between two connecting rods, the connecting plate is connected at the both sides face of two connecting rods through third round pin axle and fourth round pin hub connection respectively, third round pin axle surface still is connected with the one end of spring axle, the other end of spring axle passes the frame and through screw thread fixedly connected with set nut, the spring has been cup jointed to the spring axle surface, contradict respectively between frame and spring axle lower extreme face in the both.

Preferably, the steering wheel assembly comprises a steering wheel and a connecting seat, two sides of the connecting seat are respectively connected with two connecting rods through first pin shafts, a rotary speed reduction motor is fixedly mounted on the upper surface of the connecting seat, an externally-mounted seat is fixedly mounted on the lower surface of the connecting seat, the externally-mounted seat is fixedly mounted in an inner ring of a rotary bearing, an outer ring of the rotary bearing is fixedly mounted on the rotary bearing seat, a first gear is arranged on the outer surface of the rotary bearing, a driving end of the rotary speed reduction motor penetrates through the connecting seat and is movably connected with a rotary gear, the rotary gear is in transmission connection with the first gear, a walking speed reduction motor is fixedly mounted in the rotary bearing seat, a steering wheel shaft is fixedly connected in the middle of the steering wheel through a key, two ends of the steering wheel shaft are movably connected in the inner ring of the bearing, the steering wheel shaft bearing is fixedly connected with the rotating shaft bearing, one end of the steering wheel shaft penetrates through the steering wheel shaft bearing and is fixedly connected with a second gear, a walking gear is arranged at the driving end of the walking speed reduction motor, and the walking gear is in transmission connection with the second gear.

Preferably, a damper is fixedly mounted on the frame, and a buffering end of the damper is in contact with the upper surface of the connecting rod.

Preferably, a waist-shaped hole is formed in the surface of the machine frame, and the end part of the spring shaft penetrates through the waist-shaped hole to be in threaded connection with the positioning nut.

The utility model provides a synchronous over-and-under type helm suspended structure of connecting rod. The method has the following beneficial effects: through the synchronous lifting action of the connecting rod, the horizontal lifting adjustment of the steering wheel assemblies in the walking process is ensured, so that the steering wheel assemblies are stressed more uniformly, the service life of the steering wheel is prolonged, the impact on equipment is reduced, the vibration amplitude of the equipment is reduced, and the stable operation of the equipment is further ensured; and through the elastic action of the spring on the outer surface of the spring shaft, the steering wheel assembly can be ensured to be fully contacted with the ground, and meanwhile, the effect of buffering and vibration reduction is also achieved. The damper can effectively reduce the vibration amplitude of the equipment and ensure the stable operation of the equipment.

Drawings

In order to more clearly illustrate the present invention or the technical solutions in the prior art, the drawings used in the description of the prior art will be briefly described below.

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic structural view of a connecting rod of the present invention;

FIG. 4 is a schematic structural view of a spring shaft of the present invention;

the reference numbers in the figures illustrate:

1. a frame; 2. a steering wheel assembly; 3. a first pin shaft; 4. a connecting rod; 5. a second pin shaft; 6. a connecting plate; 7. a third pin shaft; 8. a fourth pin shaft; 9. positioning a nut; 10. a spring; 11. a steering wheel; 12. a connecting seat; 13. a walking speed reducing motor; 14. a rotating gear motor; 15. an external hanging seat; 16. a rotating bearing; 17. rotating the bearing block; 18. a first gear; 19. a rotating gear; 20. a rudder wheel shaft; 21. a bearing; 22. a rudder wheel bearing; 23. a second gear; 24. a traveling gear; 25. a damper; 26. a spring shaft; 27. a waist-shaped hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings of the present invention will be combined below to clearly and completely describe the technical solutions of the present invention.

In the first embodiment, as shown in fig. 1 to 4, a connecting rod synchronous lifting type steering wheel suspension structure comprises a frame 1 and a steering wheel assembly 2, wherein the frame 1 is respectively and fixedly installed at the bottom of the side surface of a vehicle body, two sides of the steering wheel assembly 2 are respectively connected with one end of two connecting rods 4 through first pin shafts 3, the other ends of the two connecting rods 4 are respectively connected with the frame 1 through second pin shafts 5, the two connecting rods 4 are arranged in parallel, and two connecting rods 4 are connected through a connecting plate 6, the connecting plate 6 is respectively connected and fixed on two side surfaces of the two connecting rods 4 through a third pin shaft 7 and a fourth pin shaft 8, the surface of the third pin shaft 7 is also connected with one end of a spring shaft 26, the other end of the spring shaft 26 penetrates through the rack 1 and is fixedly connected with a positioning nut 9 through threads, the outer surface of the spring shaft 26 is sleeved with a spring 10, and two ends of the spring 10 are respectively abutted between the lower end surfaces of the rack 1 and the spring shaft 26.

When the steering wheel assembly 2 works, the whole travelling mechanism is provided with travelling and rotating power through the steering wheel assembly 2, and in the travelling and rotating processes, the steering wheel assembly 2 is connected with the rack 1 through the two connecting rods 4 which are arranged in parallel, so that the horizontal lifting adjustment of the steering wheel assembly 2 in the travelling process is ensured through the synchronous lifting action of the connecting rods, the stress on each steering wheel assembly 2 is more uniform, the service life of the steering wheel 11 is prolonged, the impact on equipment is reduced, the vibration amplitude of the equipment is reduced, and the stable running of the equipment is further ensured; and through the elastic action of the spring 10 on the outer surface of the spring shaft 26, not only can the steering wheel assembly 2 be ensured to be fully contacted with the ground, but also the damping effect is achieved.

In the second embodiment, as a further scheme of the first embodiment, the steering wheel assembly 2 includes a steering wheel 11 and a connecting seat 12, two sides of the connecting seat 12 are respectively connected with two connecting rods 4 through first pin shafts 3, a rotating speed-reducing motor 14 is fixedly installed on the upper surface of the connecting seat 12, an external hanging seat 15 is fixedly installed on the lower surface of the connecting seat 12, the external hanging seat 15 is fixedly installed in an inner ring of a rotating bearing 16, an outer ring of the rotating bearing 16 is fixedly installed on a rotating bearing seat 17, a first gear 18 is arranged on the outer surface of the rotating bearing 16, a driving end of the rotating speed-reducing motor 14 penetrates through the connecting seat 12 to be movably connected with a rotating gear 19, the rotating gear 19 is in transmission connection with the first gear 18, a traveling speed-reducing motor 13 is fixedly installed in the rotating bearing seat 17, a steering wheel shaft 20 is fixedly connected in the middle of the steering wheel 11 through keys, two ends of the steering wheel, the rudder wheel bearing 22 is fixedly connected with the rotating bearing 17, one end of the rudder wheel shaft 20 penetrates through the rudder wheel bearing 22 and is fixedly connected with a second gear 23, a walking gear 24 is arranged at the driving end of the walking speed reducing motor 13, and the walking gear 24 is in transmission connection with the second gear 23.

When the steering wheel steering device operates, the rotating gear 19 is driven to rotate by the driving end of the rotating speed reduction motor 14 by controlling the starting of the rotating speed reduction motor 14, and then the first gear 18 is driven to rotate by the transmission chain, because the first gear 18 is fixed on the outer ring of the rotating bearing 16, and the rotating bearing seat 17 is also fixed on the outer ring of the rotating bearing 16, the rotating bearing seat 17 and the steering wheel 11 below the rotating bearing seat 17 can be driven to rotate by driving the first gear 18 to rotate under the relative rotation action of the inner ring and the outer ring of the rotating bearing 16; by controlling the start of the traveling gear motor 13, the driving end of the traveling gear motor 13 drives the traveling gear 24 to rotate, and then the second gear 23 is driven to rotate by the transmission chain, and the second gear 23 is fixed on the rudder wheel shaft 20, and the rudder wheel shaft 20 is fixedly connected with the rudder wheel 11 by keys, so that the rotation of the second gear 23 can drive the rudder wheel 11 to rotate and travel.

In the third embodiment, as a further scheme of the first embodiment, a damper 25 is further fixedly mounted on the frame 1, and a buffering end of the damper 25 is in contact with the upper surface of the connecting rod 4. The vibration amplitude of the whole steering wheel suspension structure can be effectively reduced through the damper 25, so that the stable operation of the equipment is further ensured.

In the fourth embodiment, as a further scheme of the first embodiment, a kidney-shaped hole 27 is formed in the surface of the frame 1, and the end of the spring shaft 26 passes through the kidney-shaped hole 27 and is in threaded connection with the positioning nut 9. The fixing position of the end of the spring shaft 26 can be finely adjusted by means of the slotted hole 27, and by means of the fixing nut 9 at the end of the spring shaft 26, a sufficient precompression of the spring is ensured.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. The utility model provides a synchronous over-and-under type helm suspension structure of connecting rod which characterized in that: the steering wheel assembly comprises a rack (1) and a steering wheel assembly (2), wherein the rack (1) is fixedly installed at the bottom of the side surface of a vehicle body respectively, two sides of the steering wheel assembly (2) are connected with one ends of two connecting rods (4) respectively through first pin shafts (3), the other ends of the two connecting rods (4) are connected onto the rack (1) respectively through second pin shafts (5), the two connecting rods (4) are arranged in parallel, the two connecting rods (4) are connected with each other through connecting plates (6), the connecting plates (6) are connected and fixed on the two side surfaces of the two connecting rods (4) respectively through third pin shafts (7) and fourth pin shafts (8), the surface of the third pin shaft (7) is also connected with one end of a spring shaft (26), the other end of the spring shaft (26) penetrates through the rack (1) and is fixedly connected with a positioning nut (9) through threads, and a spring (10) is sleeved on, two ends of the spring (10) respectively abut against the lower end faces of the rack (1) and the spring shaft (26).

2. The connecting rod synchronous lifting type steering wheel suspension structure according to claim 1, wherein: the steering wheel subassembly (2) includes steering wheel (11) and connecting seat (12), connecting seat (12) both sides are connected with two connecting rods (4) through first round pin axle (3) respectively, fixed surface installs rotatory gear motor (14) on connecting seat (12), fixed surface installs outer seat (15) of hanging under connecting seat (12), outer seat (15) fixed mounting is in the inner circle of swivel bearing (16), the outer lane fixed mounting of swivel bearing (16) is on swivel bearing seat (17), swivel bearing (16) surface is provided with first gear (18), the drive end of rotatory gear motor (14) passes connecting seat (12) swing joint and has turning gear (19), turning gear (19) are connected with first gear (18) transmission, fixed mounting has walking gear motor (13) in swivel bearing seat (17), the utility model discloses a rudder wheel, including rudder wheel, bearing, rudder wheel axle and rudder wheel axle bearing (11), there is rudder wheel axle (20) through key fixedly connected with in the middle of the rudder wheel (11), the equal swing joint in the inner circle of bearing (21) in both ends of rudder wheel axle (20), the outer lane of bearing (21) is fixed mounting respectively on two rudder wheel bearings (22), rudder wheel bearing (22) and rotation axis bearing (17) fixed connection, rudder wheel axle bearing (22) fixedly connected with second gear (23) are passed to the one end of rudder wheel axle (20), the drive end of walking gear motor (13) is provided with walking gear (24), walking gear (24) are connected with second gear (23) transmission.

3. The connecting rod synchronous lifting type steering wheel suspension structure according to claim 1, wherein: still fixed mounting has attenuator (25) on frame (1), the buffering end of attenuator (25) contacts with the upper surface of connecting rod (4).

4. The connecting rod synchronous lifting type steering wheel suspension structure according to claim 1, wherein: waist-shaped holes (27) are formed in the surface of the rack (1), and the end portions of the spring shafts (26) penetrate through the waist-shaped holes (27) to be in threaded connection with the positioning nuts (9).