All-electrified system suitable for forklift operation

Abstract

The utility model relates to an all-electrified system suitable for forklift operation, which belongs to the technical field of forklifts and structurally comprises a lifting gantry, a fixed gantry, a lifting electric cylinder component, an inclined electric cylinder component, an accessory, a frame component, a counterweight component, a chassis component, a steering electric cylinder component, a rear wheel component and a front wheel component. The lifting electric cylinder assembly comprises a lifting driving motor, an upper connecting piece, a lifting reduction gear box, a lifting lead screw pair, a lifting push rod, a lifting cylinder barrel and a lower supporting base. The inclined electric cylinder assembly comprises an inclined driving motor, an upper supporting lug, an inclined cylinder barrel, an inclined push rod, an inclined lead screw pair, an inclined reduction gear box and a lower supporting lug. Extension and retraction of the lifting push rod are controlled through the lifting electric cylinder assembly, the lifting portal is pushed to move up and down, the accessory is driven to move up and down, and lifting and falling of goods are achieved. A hydraulic actuating system on an existing forklift is replaced, full-electric control and operation are achieved, operation and installation are easy, environment protection and pollution free are achieved, the service life is long, transmission is stable, and noise is low.

Description

Technical Field

[0001] The utility model patent discloses a fully electric system applicable to forklift operation, belonging to the technical field of forklifts. Background Art

[0002] With the development of the logistics transportation and warehousing industries, the usage frequency and market share of forklifts are getting higher and higher. The traditional forklift operation structure is mainly based on a hydraulic system, which has the defects of hydraulic oil leakage such as running, leaking, dripping, and polluting the environment. In addition, it has a short maintenance cycle and a complex installation structure. Content of the Utility Model

[0003] In order to solve and optimize the above technical problems, the utility model proposes a fully electric system applicable to forklift operation, which has a simple structure, is convenient to install, is green and environmentally friendly, uses electric drive, has high energy utilization rate, and can adapt to various complex working conditions.

[0004] The technical solution adopted by the utility model is as follows:

[0005] A fully electric system applicable to forklift operation, characterized by comprising a lifting mast, a fixed mast, a lifting electric cylinder assembly, a tilting electric cylinder assembly, attachments, a vehicle frame assembly, a counterweight assembly, a chassis assembly, a steering electric cylinder assembly, a rear wheel assembly, and a front wheel assembly. The lifting electric cylinder assembly includes a lifting drive motor, an upper connecting piece, a lifting reduction gearbox, a lifting lead screw pair, a lifting push rod, a lifting cylinder barrel, and a lower support seat. The tilting electric cylinder assembly includes a tilting drive motor, an upper support ear, a tilting cylinder barrel, a tilting push rod, a tilting lead screw pair, a tilting reduction gearbox, and a lower support ear. The steering electric cylinder assembly includes a steering support ear, a steering push rod, a steering cylinder barrel, a steering lead screw pair, a steering reduction gearbox, and a steering drive motor. The lifting electric cylinder assembly controls the extension and retraction of the lifting push rod, pushes the lifting mast to move up and down, drives the attachments to move up and down, and realizes the elevation and lowering of goods. The tilting electric cylinder assembly controls the extension and retraction of the tilting push rod, controls the tilting angle of the lifting mast and the fixed mast, and realizes the forward and backward tilting of the attachments. The steering electric cylinder assembly controls the extension and retraction of the steering push rod, controls the rotation angle of the rear wheel assembly around the axis, and realizes the steering action of the forklift.

[0006] Further, for the lifting electric cylinder assembly, the electric cylinders are vertically placed and symmetrically arranged in two on the left and right. The upper ends are connected to the lifting mast through upper connecting pieces, and the lower ends are connected to the fixed mast through lower support seats.

[0007] Further, for the tilting electric cylinder assembly, the electric cylinders are obliquely arranged and symmetrically arranged in two on the left and right. The upper ends are connected to the hinge shafts welded to the side ends of the fixed mast through upper support ears, and the lower ends are connected to the hinge shafts welded to the inner sides of the vehicle frame assembly through lower support ears.

[0008] Further, for the steering electric cylinder assembly, the left and right sides of the steering electric cylinder are connected to the rear wheel assembly through steering lugs, and the middle is fixedly connected to the frame assembly through bolts. The thread directions of the left and right ends of the internal steering lead screw pair are the same.

[0009] The beneficial effects of the present utility model are as follows: The present utility model provides a fully electrified system applicable to forklift operations, which replaces the hydraulic actuation system in existing forklifts. It has a simple structure, is easy to install, uses electric drive, is green, environmentally friendly and pollution-free, has high energy utilization rate, realizes fully electrified control and operation, has high load capacity, long service life, smooth transmission and low noise, good compatibility, can be applicable to all forklifts on the market, and can cope with various complex working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0011] Figure 1 It is a schematic diagram of the installation suitability of the present utility model.

[0012] Figure 2 It is a schematic structural diagram of the lifting electric cylinder assembly of the present utility model.

[0013] Figure 3 It is a schematic structural diagram of the tilt electric cylinder assembly of the present utility model.

[0014] Figure 4 It is a schematic structural diagram of the steering electric cylinder assembly of the present utility model.

[0015] DESCRIPTION OF THE REFERENCE NUMERALS

[0016] 1. Lifting mast; 2. Fixed mast; 3. Lifting electric cylinder assembly; 31. Lifting drive motor; 32. Upper connecting member; 33. Lifting reduction gearbox; 34. Lifting lead screw pair; 35. Lifting push rod; 36. Lifting cylinder barrel; 37. Lower support seat; 4. Tilt electric cylinder assembly; 41. Tilt drive motor; 42. Upper lug; 43. Tilt cylinder barrel; 44. Tilt push rod; 45. Tilt lead screw pair; 46. Tilt reduction gearbox; 47. Lower lug; 5. Attachment; 6. Frame assembly; 7. Counterweight assembly; 8. Chassis assembly; 9. Steering electric cylinder assembly; 91. Steering lug; 92. Steering push rod; 93. Steering cylinder barrel; 94. Steering lead screw pair; 95. Steering reduction gearbox; 96. Steering drive motor; 10. Rear wheel assembly; 11. Front wheel assembly. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the following will clearly describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0018] The following will specifically describe the embodiments of the present utility model in conjunction with Figures 1 to 4 the accompanying drawings.

[0019] As Figure 1 shown in Figure 2 and Figure 3 and Figure 4 shown, a fully electrified system applicable to forklift operations includes a lifting mast (1), a fixed mast (2), a lifting electric cylinder assembly (3), a tilting electric cylinder assembly (4), a attachment (5), a vehicle frame assembly (6), a counterweight assembly (7), a chassis assembly (8), a steering electric cylinder assembly (9), a rear wheel assembly (10), and a front wheel assembly (11). The lifting electric cylinder assembly (3) includes a lifting drive motor (31), an upper connecting member (32), a lifting reduction gearbox (33), a lifting lead screw pair (34), a lifting push rod (35), a lifting cylinder barrel (36), and a lower support base (37). The tilting electric cylinder assembly (4) includes a tilting drive motor (41), an upper support ear (42), a tilting cylinder barrel (43), a tilting push rod (44), a tilting lead screw pair (45), a tilting reduction gearbox (46), and a lower support ear (47). The steering electric cylinder assembly (9) includes a steering support ear (91), a steering push rod (92), a steering cylinder barrel (93), a steering lead screw pair (94), a steering reduction gearbox (95), and a steering drive motor (96). The lifting electric cylinder assembly (3) controls the extension and retraction of the lifting push rod (35) to push the lifting mast (1) to move up and down, driving the attachment (5) to move up and down to achieve the elevation and lowering of goods. The tilting electric cylinder assembly (4) controls the extension and retraction of the tilting push rod (44) to control the tilting angle of the lifting mast (1) and the fixed mast (2) to achieve the forward and backward tilting of the attachment (5). The steering electric cylinder assembly (9) controls the extension and retraction of the steering push rod (92) to control the rotation angle of the rear wheel assembly (10) around the axis to achieve the steering actuation of the forklift.

[0020] Specifically, for the lifting electric cylinder assembly (3), the electric cylinders are vertically placed and symmetrically arranged in two on the left and right. The upper ends are connected to the lifting mast (1) through the upper connecting member (32), and the lower ends are connected to the fixed mast (2) through the lower support base (37).

[0021] Specifically, for the tilting electric cylinder assembly (4), the electric cylinders are arranged in a tilted manner, with two cylinders arranged symmetrically on the left and right. The upper ends are connected to the hinge shafts welded to the side ends of the fixed gantry (2) through upper lugs (42), and the lower ends are connected to the hinge shafts welded to the inner sides of the vehicle frame assembly (6) through lower lugs (47).

[0022] Specifically, for the steering electric cylinder assembly (9), it is connected to the rear wheel assembly (10) through steering lugs (91) on the left and right, and is fixedly connected to the vehicle frame assembly (6) through bolts in the middle. The left and right ends of the internal steering screw pair (94) have the same thread helix direction.

[0023] Specifically, the present invention provides a fully electrified system applicable to forklift operations, which replaces the hydraulic actuation system on existing forklifts. It has a simple structure, is easy to install, uses electric drive, is green and pollution-free, has high energy utilization rate, realizes fully electrified control and operation, has high load capacity, long service life, smooth transmission and low noise, good compatibility, can be applied to all forklifts on the market, and can handle various complex working conditions.

[0024] Specifically, during the implementation process, the installation and use of screws, the specific selection of materials, the calculation and verification of components, modeling and assembly belong to the common knowledge of those in this field, and the present invention will not elaborate on them here.

[0025] Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts, including but not limited to equivalent replacements, modifications or improvements, fall within the protection scope of the present invention. Although various aspects are illustrated in the examples, the drawings do not have to be drawn to scale unless specifically indicated.

Claims

1. A fully electrified system suitable for forklift operation, characterized in that: It includes a lifting gantry, a fixed gantry, a lifting electric cylinder assembly, a tilting electric cylinder assembly, accessories, a frame assembly, a counterweight assembly, a chassis assembly, a steering electric cylinder assembly, a rear wheel assembly and a front wheel assembly, wherein the lifting electric cylinder assembly includes a lifting drive motor, an upper connecting piece, a lifting reduction gearbox, a lifting lead screw pair, a lifting push rod, a lifting cylinder barrel and a lower support seat; the tilting electric cylinder assembly includes a tilting drive motor, an upper support ear, a tilting cylinder barrel, a tilting push rod, a tilting lead screw pair, a tilt reduction gearbox and a lower support ear; the steering electric cylinder assembly includes a steering support ear, a steering Steering push rod, steering cylinder, steering screw pair, steering reduction gear box, steering drive motor, the lifting electric cylinder assembly controls the extension and retraction of the lifting push rod, pushes the lifting gantry to move up and down, drives the accessories to move up and down, and realizes the lifting and falling of the goods. The tilting electric cylinder assembly controls the extension and retraction of the tilting push rod to control the tilt angle of the lifting gantry and the fixed gantry to realize the forward and backward tilt of the accessories. The steering electric cylinder assembly controls the extension and retraction of the steering push rod to control the angle of rotation of the rear wheel assembly around the axis to realize the steering actuation of the forklift.

2. A fully electrified system suitable for forklift operation according to claim 1, characterized in that: The electric cylinder is placed vertically, with two cylinders symmetrically arranged on the left and right. The upper end is connected to the lifting gantry through an upper connecting piece, and the lower end is connected to the fixed gantry through a lower supporting seat.

3. A fully electrified system suitable for forklift operation according to claim 1, characterized in that: The electric cylinder is arranged obliquely, with two cylinders symmetrically arranged on the left and right. The upper end is connected to a hinge shaft welded to the side end of the fixed mast through an upper support ear, and the lower end is connected to a hinge shaft welded to the inner side of the frame assembly through a lower support ear.

4. A fully electrified system suitable for forklift operation according to claim 1, characterized in that: The steering electric cylinder is connected to the rear wheel assembly through the steering lugs on the left and right, and is fixedly connected to the frame assembly through bolts in the middle. The threads on the left and right ends of the internal steering screw pair have the same rotation direction.

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