CN218371593U

CN218371593U - Steering wheel, suspension structure and forklift

Info

Publication number: CN218371593U
Application number: CN202222887750.8U
Authority: CN
Inventors: 陈龙; 陈兴; 王鹏; 祝春燕; 贺鸿达
Original assignee: Hengyang Heli Industrial Vehicle Co Ltd
Current assignee: Hengyang Heli Industrial Vehicle Co Ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-01-24
Anticipated expiration: 2032-10-31

Abstract

The utility model relates to a steering wheel, a suspension structure and a forklift, wherein the steering wheel comprises a driving wheel and a mounting seat; the shock absorption assembly is connected with the mounting seat; the adjusting assembly comprises a supporting oil cylinder, and the supporting oil cylinder is communicated with the lifting oil cylinder; the supporting oil cylinder comprises an oil cylinder barrel and a piston rod forming a sliding pair with an inner cavity of the oil cylinder barrel, the piston rod is connected with the damping assembly, and the driving wheel is installed below the damping assembly. The application provides a steering wheel, suspension structure and fork truck can be under the load that the chassis bore changes the condition for the bearing of steering wheel keeps unchangeable basically, realizes that fork truck has good adhesive force on uneven road surface, reduces fork truck and skids the condition because of the not enough wheel of adhesive force appears in the use.

Description

Steering wheel, suspension structure and forklift

Technical Field

The utility model belongs to the technical field of the technique of fork truck suspension and specifically relates to a steering wheel, suspension structure and fork truck.

Background

A forklift is a typical industrial transportation vehicle, which refers to various wheeled transportation vehicles for loading, unloading, stacking and short-distance transportation of finished pallet goods, and is commonly used for transportation of large warehoused objects, and is usually driven by an oil-fired machine or a battery. Industrial transportation vehicles are widely used in ports, stations, airports, cargo yards, factory workshops, warehouses, distribution centers, and the like, and are equipments essential for carrying and loading/unloading pallet goods in cabins, carriages, and containers.

Traditional fork truck's drive wheel and stabilizer adopt rigid connection more, and the shock attenuation effect is relatively poor like this, when uneven road surface or crossing the barrier, vibrations directly transmit the people on one's body, and driver's driving comfort is poor, and when the pit was crossed to the drive wheel, traditional suspension mechanism appeared the automobile body easily and was jack-up by the stabilizer, caused the drive wheel adhesive force little and appeared unsettledly, and then fork truck skidded and can't march.

Therefore, it is an urgent technical problem to be solved by those skilled in the art to provide a steering wheel adjusting assembly for preventing a forklift from slipping by changing the adhesion of a driving wheel in a steering wheel.

SUMMERY OF THE UTILITY MODEL

The technical problem of be solved, an object of the utility model is to provide a helm, suspension structure and fork truck can be under the load change's that the chassis bore the condition for the bearing of helm remains unchanged basically, realizes that fork truck has good adhesive force on uneven road surface, reduces fork truck and skids because of the not enough wheel of adhesive force appearing the condition in the use.

The technical scheme of the utility model as follows:

a steering wheel, comprising: a driving wheel and a mounting seat;

the damping assembly is connected with the mounting seat;

the adjusting assembly comprises a supporting oil cylinder, and the supporting oil cylinder is communicated with the lifting oil cylinder;

the supporting oil cylinder comprises an oil cylinder barrel and a piston rod forming a sliding pair with an inner cavity of the oil cylinder barrel, the piston rod is connected with the damping assembly, and the driving wheel is installed below the damping assembly.

Preferably, the oil cylinder barrel is provided with an oil hole, and the oil hole is communicated with the lifting oil cylinder through a hydraulic pipeline.

Preferably, the adjusting assembly comprises a force increasing spring, one end of the force increasing spring abuts against one end, far away from the oil cylinder barrel, of the piston rod, and the force increasing spring is sleeved on the outer wall of the oil cylinder barrel.

A suspension structure comprises the steering wheel, the shock absorption assembly comprises an upper cross beam and a lower cross beam, the upper cross beam and the lower cross beam are arranged oppositely, and the upper cross beam and/or the lower cross beam are connected with a vehicle body assembly; the mounting seat is arranged above the lower cross beam, and a guide unit is arranged between the upper cross beam and the lower cross beam.

Preferably, the guide unit includes a first guide post, one end of the first guide post is connected with the upper beam, the other end of the first guide post passes through the mounting seat and is connected with the lower beam, a first spring is sleeved on the first guide post, and one end of the first spring abuts against the upper side of the mounting seat.

Preferably, the guide unit includes a second guide post, the second guide post is disposed opposite to the first guide post, one end of the second guide post is connected to the upper beam, the other end of the second guide post passes through the mounting seat and is connected to the lower beam, a second spring is sleeved on the second guide post, and one end of the second spring abuts against the upper side of the mounting seat.

Preferably, the auxiliary support wheel support device comprises two auxiliary support wheels, the auxiliary support wheels and the driving wheel are coaxially arranged, and the two auxiliary support wheels are symmetrically arranged on two sides of the driving wheel.

Preferably, a reinforcing part is arranged on one side of each of the first guide column and the second guide column, and the reinforcing parts are connected with the upper part of the mounting seat.

A lift truck, comprising: the fork, the suspension structure and the vehicle body assembly are connected with the steering wheel; and the lifting oil cylinder is used for driving the pallet fork to lift, and the pallet fork is connected with the vehicle body assembly.

Preferably, front support wheels are included, the front support wheels being connected with the forks.

The application provides a steering wheel, a suspension structure and a forklift, wherein the steering wheel comprises a driving wheel, a mounting seat and a damping component, and the damping component is connected with the mounting seat; the adjusting assembly comprises a supporting oil cylinder, and the supporting oil cylinder is communicated with the lifting oil cylinder; the support oil cylinder comprises an oil cylinder barrel and a piston rod forming a sliding pair with an inner cavity of the oil cylinder barrel, the piston rod is connected with the damping assembly, and the driving wheel is installed below the damping assembly. Compared with the prior art, the application provides a steering wheel, suspension structure and fork truck, because fork truck bears the load, it plays to rise the hydro-cylinder and plays the hydro-cylinder intercommunication to rise, it gives the support cylinder with the hydraulic oil medium transmission to rise hydro-cylinder production pressure to rise the hydro-cylinder, it includes the hydro-cylinder section to rise the hydro-cylinder section of thick bamboo, the hydro-cylinder section of thick bamboo and piston rod seal fit, and form the sliding pair with the inner chamber of hydro-cylinder section of thick bamboo, hydraulic oil exerts pressure to the piston rod, and the piston rod is connected with shock-absorbing component, so just realize through making support cylinder and play to rise the hydro-cylinder pressure unanimous, adjust the adhesive force size of drive wheel, and then realize that the steering wheel can be according to ground height, vehicle load and actual comprehensive circumstances such as shock attenuation, adjust the adhesive force size of drive wheel. Therefore, the application provides a steering wheel, suspension structure and fork truck, can be under the load that the chassis bore changes the condition for the bearing of steering wheel keeps unchangeable basically, realizes that fork truck has good adhesive force on uneven road surface, reduces fork truck and skids the condition because of the not enough wheel of adhesive force appears in the use.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural view of a steering wheel provided by an embodiment of the present invention;

fig. 2 is a cross-sectional view of a support cylinder provided in an embodiment of the present invention;

fig. 3 is a schematic structural diagram of the forklift provided by the embodiment of the present invention.

Reference numbers in the drawings illustrate: 1. a drive wheel; 2. a mounting seat; 3. a shock absorbing assembly; 31. an upper cross beam; 32. a lower cross beam; 33. a first guide post; 34. a first spring; 35. a second guide post; 36. a second spring; 4. an adjustment assembly; 41. a support cylinder; 42. an oil cylinder barrel; 421. an oil hole; 43. a piston rod; 44. a force increasing spring; 5. a lifting oil cylinder; 6. an auxiliary support wheel; 7. a reinforcing portion; 8. a body component; 9. a pallet fork; 10. a front support wheel; 11. a hydraulic line.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present invention, it is to be understood that the terms "upper", "lower", and the like indicate orientations or positional relationships, and are used merely for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the components or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.

As shown in fig. 1 to 3, the steering wheel provided by the present application includes: the driving wheel 1, the mounting seat 2 and the damping component 3 are connected with the mounting seat 2; the adjusting assembly 4 comprises a supporting oil cylinder 41, and the supporting oil cylinder 41 is communicated with the lifting oil cylinder 5; the supporting oil cylinder 41 comprises an oil cylinder barrel 42 and a piston rod 43 forming a sliding pair with an inner cavity of the oil cylinder barrel 42, the piston rod 43 is connected with the shock absorption assembly 3, and the driving wheel 1 is installed below the shock absorption assembly 3.

The application provides a steering wheel, a suspension structure and a forklift, wherein the steering wheel comprises a driving wheel 1, a mounting seat 2 and a damping component 3, and the damping component 3 is connected with the mounting seat 2; the adjusting assembly 4 comprises a supporting oil cylinder 41, and the supporting oil cylinder 41 is communicated with the lifting oil cylinder 5; the supporting oil cylinder 41 comprises an oil cylinder barrel 42 and a piston rod 43 forming a sliding pair with an inner cavity of the oil cylinder barrel 42, the piston rod 43 is connected with the shock absorption assembly 3, and the driving wheel 1 is installed below the shock absorption assembly 3. Compared with the prior art, the helm, suspension structure and fork truck that this application provided, because fork truck bears the load, the work of rising hydro-cylinder 5, through with the lift hydro-cylinder 5 intercommunication of support cylinder 41 with external world, the rising hydro-cylinder 5 produces pressure and transmits the hydraulic oil medium for support cylinder 41, support cylinder 41 includes oil cylinder 42, oil cylinder 42 and piston rod 43 seal fit, and form the sliding pair with the inner chamber of oil cylinder 42, hydraulic oil exerts pressure to piston rod 43, and piston rod 43 is connected with damper assembly 3, just so realize through making support cylinder 41 and the unanimous with the pressure of rising hydro-cylinder 5, adjust the adhesive force size of drive wheel 1, and then realize that the helm can be according to comprehensive condition such as ground height, vehicle load and actual shock attenuation, adjust the adhesive force size of drive wheel 1. Therefore, the application provides a steering wheel, suspension structure and fork truck, can be under the load that the chassis bore changes the condition for the bearing of steering wheel keeps unchangeable basically, realizes that fork truck has good adhesive force on uneven road surface, reduces fork truck and skids the condition because of the not enough wheel of adhesive force appears in the use.

Wherein, be equipped with oilhole 421 on the oil cylinder 42, oilhole 421 passes through hydraulic line 11 and rises hydro-cylinder 5 intercommunication, and in the in-process of in-service use, can set up oilhole 421 according to the structural feature of oil cylinder 42, for example, can set up oilhole 421 into vertical structure or L type structure. Furthermore, the joint of the oil cylinder 42 and the hydraulic pipeline 11 should be sealed, so that the pressure relief and the like cannot occur, and the situation that the pressure of the supporting oil cylinder 41 is the same as that of the lifting oil cylinder 5 cannot be formed is avoided.

Further, the adjusting assembly 4 includes a force increasing spring 44, one end of the force increasing spring 44 abuts against one end of the piston rod 43 away from the oil cylinder 42, and the force increasing spring 44 is sleeved on the outer wall of the oil cylinder 42. Preferably, an abutting portion is disposed on the piston rod 43, a protruding portion is disposed at one end of the oil cylinder 42, and the force-increasing spring is disposed between the abutting portion and the protruding portion, so that when hydraulic oil enters the oil cylinder 42, the pressure continuously increases to apply pressure to the piston rod 43, and meanwhile, the force-increasing spring 44 is also under stress and stores force, and once the pressure in the oil cylinder 42 changes, the force-increasing spring 44 is disposed to rapidly return to the initial state.

The application provides a suspension structure, including foretell steering wheel, damper assembly 3 includes entablature 31, bottom end rail 32, and entablature 31 and bottom end rail 32 set up relatively, and entablature 31 and/or bottom end rail 32 are connected with automobile body subassembly 8, and mount pad 2 is located the bottom end rail 32 top, is equipped with the guide unit between entablature 31 and the bottom end rail 32. The structure can ensure that the steering wheel is stably arranged on the suspension structure, and the impact on the steering wheel in the driving process due to unstable structure is reduced. On the other hand, the guide structure can convert the driving impact force into kinetic energy for consumption, and the shock absorption effect is achieved.

Specifically, the guide unit includes a first guide post 33, one end of which is connected to the upper beam 31, the other end of which passes through the mounting base 2 and is connected to the lower beam 32, a first spring 34 is sleeved on the first guide post 33, and one end of the first spring 34 abuts against the upper side of the mounting base 2. Meanwhile, the guide unit comprises a second guide column 35, the second guide column 35 is arranged opposite to the first guide column 33, one end of the second guide column is connected with the upper cross beam 31, the other end of the second guide column penetrates through the mounting seat 2 and is connected with the lower cross beam 32, a second spring 36 is sleeved on the second guide column 35, and one end of the second spring 36 abuts against the upper side of the mounting seat 2. The first guide post 33 and the second guide post 35 are symmetrical so as to be structurally stable. On the other hand, the first spring 34 and the second spring 36 can play a role of shock absorption.

The steering wheel is connected with the vehicle body assembly 8 through the upper cross beam 31, the upper cross beam 31 and/or the lower cross beam 32, the driving wheel 1 is fixedly connected with the mounting seat 2 above the driving wheel 1, the driving wheel 1 and the mounting seat 2 can move up and down along the guide unit, the upper end of the supporting oil cylinder 41 is connected with the upper cross beam 31, the lower end of the supporting oil cylinder 41 is fixedly connected with the mounting seat 2, the driving wheel 1 has self-adaptive ground positive pressure and a damping effect under the action of hydraulic oil pressure entering the supporting oil cylinder 41 and acting on the mounting seat 2, the bearing capacity of the steering wheel can be basically kept unchanged under the condition that the load borne by the chassis is changed, the forklift has good adhesion on uneven road surfaces, and the condition that the wheels of the forklift are not easy to slip due to insufficient adhesion in the using process is reduced.

The utility model provides an in the embodiment, including two auxiliary stay wheels 6, auxiliary stay wheel 6 and the coaxial setting of

drive wheel

1, 1 both sides of drive wheel are located to 6 symmetries of two auxiliary stay wheels. The auxiliary supporting wheels 6 and the driving wheels 1 are arranged on the same axis, and the auxiliary supporting wheels 6 are mainly arranged to improve the transverse stability of the forklift during operation.

Preferably, the first guide pillar 33 and the second guide pillar 35 are provided with a reinforcing portion 7 at one side, and the reinforcing portion 7 is connected to the upper portion of the mounting seat 2. So can make the structural strength of mount pad 2 more excellent, can also play certain guard action simultaneously.

The utility model provides a forklift, which comprises a pallet fork 9 and the suspension structure, a body assembly 8, wherein the body assembly 8 is connected with a steering wheel; and the lifting oil cylinder 5 is used for driving the pallet fork 9 to lift, and the pallet fork 9 is connected with the vehicle body assembly 8. When fork truck need transport the goods, place the goods on fork 9, fork 9 provides the bearing capacity for the goods during operation, then drives the up-and-down motion of fork 9 through the lift that rises to rise hydro-cylinder 5.

Further, the forklift includes front support wheels 10, and the front support wheels 10 are connected with the forks 9. The front supporting wheel 10 is fixedly arranged and is a driven wheel, so that the forklift can move conveniently.

The application still provides a fork truck, including foretell suspension structure, can reach foretell technological effect equally, no longer describe herein.

The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts in the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A steering wheel, comprising: a driving wheel (1) and a mounting seat (2);

the shock absorption assembly (3) is connected with the mounting seat (2);

the adjusting assembly (4) comprises a supporting oil cylinder (41), and the supporting oil cylinder (41) is communicated with the lifting oil cylinder (5);

the supporting oil cylinder (41) comprises an oil cylinder barrel (42) and a piston rod (43) forming a sliding pair with an inner cavity of the oil cylinder barrel (42), the piston rod (43) is connected with the damping assembly (3), and the driving wheel (1) is installed below the damping assembly (3).

2. Rudder wheel according to claim 1, wherein the oil cylinder (42) is provided with an oil hole (421), and the oil hole (421) is connected to the lift cylinder (5) via a hydraulic line (11).

3. Rudder wheel according to claim 1, wherein the adjustment assembly (4) comprises a force increasing spring (44), one end of the force increasing spring (44) abuts against the end of the piston rod (43) remote from the oil cylinder (42), and the force increasing spring (44) is mounted on the outer wall of the oil cylinder (42).

4. Suspension arrangement, comprising a steering wheel according to any of claims 1 to 3, wherein the damping assembly (3) comprises an upper cross member (31), a lower cross member (32), wherein the upper cross member (31) is arranged opposite to the lower cross member (32), and wherein the upper cross member (31) and/or the lower cross member (32) is connected to a body assembly (8);

the mounting seat (2) is arranged above the lower cross beam (32), and a guide unit is arranged between the upper cross beam (31) and the lower cross beam (32).

5. The suspension structure according to claim 4, characterized in that the guiding unit comprises a first guiding column (33) having one end connected to the upper cross member (31) and the other end passing through the mounting seat (2) and connected to the lower cross member (32), wherein a first spring (34) is sleeved on the first guiding column (33), and one end of the first spring (34) abuts against the upper side of the mounting seat (2).

6. The suspension structure according to claim 5, wherein the guide unit comprises a second guide post (35), the second guide post (35) is arranged opposite to the first guide post (33), one end of the second guide post is connected with the upper cross beam (31), the other end of the second guide post passes through the mounting seat (2) and is connected with the lower cross beam (32), a second spring (36) is sleeved on the second guide post (35), and one end of the second spring (36) abuts against the upper side of the mounting seat (2).

7. The suspension structure according to claim 6, characterized by comprising two auxiliary support wheels (6), wherein the auxiliary support wheels (6) are arranged coaxially with the driving wheel (1), and the two auxiliary support wheels (6) are symmetrically arranged on both sides of the driving wheel (1).

8. The suspension structure according to claim 6 wherein the first guide post (33) and the second guide post (35) are each provided with a reinforcement portion (7) on one side, the reinforcement portion (7) being connected to the upper side of the mount base (2).

9. A forklift, comprising: fork (9) and suspension arrangement according to any of claims 4-8,

the vehicle body assembly (8), the vehicle body assembly (8) is connected with the steering wheel;

and the lifting oil cylinder (5) is used for driving the pallet fork (9) to lift, and the pallet fork (9) is connected with the vehicle body assembly (8).

10. A fork lift truck as claimed in claim 9, characterized by comprising front support wheels (10), said front support wheels (10) being connected to said forks (9).