CN212740650U

CN212740650U - Forklift truck

Info

Publication number: CN212740650U
Application number: CN202021527723.4U
Authority: CN
Inventors: 乔智; 邹晓辰
Original assignee: Hangzhou Hikrobot Technology Co Ltd
Current assignee: Hangzhou Hikrobot Co Ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-03-19
Anticipated expiration: 2030-07-29

Abstract

The application provides a forklift, including automobile body, elevating system, horizontal floating assembly and be used for bearing the carrier assembly who is born the weight of the thing, the automobile body links to each other with elevating system, carrier assembly passes through horizontal floating assembly and links to each other with elevating system, and horizontal floating assembly can make carrier assembly move for elevating system along the second horizontal direction of the first horizontal direction of perpendicular to, and carrier assembly includes bearing plate and bears the weight of the setting element. This application is through linking to each other through the horizontal slip subassembly between with carrier assembly and elevating system to allow carrier assembly to can the horizontal slip for elevating system, and set up the bearing setting element that possesses the location inclined plane on bearing plate, like this when bearing plate is close to and the butt with the thing of bearing, the location inclined plane can drive bearing plate level according to shape fit effect and float, finally realizes the technical effect that can automatic positioning between carrier assembly and the thing of bearing.

Description

Forklift truck

Technical Field

The invention relates to the field of transport machinery, in particular to a forklift.

Background

The forklift is widely applied to production places such as storage yards, production workshops and the like as a transportation machine capable of conveniently supporting and carrying a carried object, and particularly has the function of lifting the carried object to a certain height, so that the labor can be saved.

In the process of lifting and lifting the carried object, the relative position of the carrying assembly of the forklift for carrying the carried object and the carried object can only be judged by the visual and experience of an operator, and the risk of damaging the carried object exists when the relative position of the carrying assembly and the carried object is inaccurate.

Disclosure of Invention

The embodiment of the application provides a forklift to solve the problem that automatic positioning cannot be carried out between a bearing assembly and a carried object.

The embodiment of the application adopts the following technical scheme:

the embodiment of the application provides a forklift, which comprises a forklift body, a lifting mechanism, a horizontal floating assembly and a bearing assembly for bearing a borne object, wherein the forklift body is connected with the lifting mechanism, the bearing assembly is connected with the lifting mechanism through the horizontal floating assembly and extends in a direction far away from the lifting mechanism along a first horizontal direction, and the horizontal floating assembly can enable the bearing assembly to move relative to the lifting mechanism along a second horizontal direction perpendicular to the first horizontal direction; the bearing component comprises a bearing supporting plate and a bearing positioning piece, the bearing supporting plate is provided with a bearing surface which faces upwards and is used for bearing a borne object, the bearing positioning piece is arranged on the bearing surface, the bearing positioning piece is provided with a positioning inclined plane facing to the second horizontal direction, and when the borne object is abutted to the positioning inclined plane, the positioning inclined plane can move along the second horizontal direction and drive the bearing component to float horizontally.

Preferably, the bearing positioning piece is a positioning pile convexly arranged on the bearing surface.

Preferably, the bearing positioning piece is provided with two positioning slopes which face away from each other.

Preferably, the bearing assembly comprises a plurality of bearing positioning members.

Preferably, the vehicle body further comprises a scissor assembly and a scissor assembly chassis, wherein the scissor assembly comprises at least two rotating ends and at least two sliding ends, the scissor assembly chassis is connected with the vehicle body and extends along the first horizontal direction, the scissor assembly chassis and the bearing support plate are arranged oppositely along the vertical direction, the rotating ends are respectively connected with the bearing support plate and the scissor assembly chassis, and the sliding ends are respectively connected with the bearing support plate and the scissor assembly chassis.

Preferably, the horizontal floating assembly includes a horizontal sliding rail and a horizontal sliding block, the horizontal sliding block is connected to the horizontal sliding rail in a sliding manner and can slide relative to the horizontal sliding rail along the second horizontal direction, one of the horizontal sliding rail and the horizontal sliding block is connected to the lifting mechanism, and the other is connected to the bearing assembly.

Preferably, the horizontal floating assembly further comprises a pair of elastic arms which are oppositely arranged, the elastic arms extend along the second horizontal direction, the horizontal sliding block is provided with a first abutting surface and a second abutting surface which face towards the second horizontal direction and depart from each other, the opposite ends of the elastic arms are respectively abutted against the first abutting surface and the second abutting surface, the ends of the elastic arms which depart from each other are connected with the lifting mechanism, and the elastic arms can follow the horizontal sliding block to slide along the second horizontal direction to generate elastic deformation.

Preferably, the elastic arm comprises a spring and a spring pretightening force adjusting piece, the spring pretightening force adjusting piece is fixedly connected with the lifting mechanism and is abutted against one end of the spring, which is far away from the horizontal sliding block, of the spring, the end of the spring pretightening force adjusting piece abutted against the spring is an adjusting end, and the pretightening force of the spring can be changed by changing the distance between the adjusting end and the horizontal sliding block; the bearing assembly further comprises a positioning distance measuring piece, and the positioning distance measuring piece is connected with the bearing supporting plate and is used for measuring the distance between the bearing surface and the supported object.

Preferably, the bearing component further comprises a position measuring part, and the position measuring part is connected with the bearing supporting plate and is used for measuring the horizontal position of the bearing supporting plate.

This application embodiment is through linking to each other through the horizontal slip subassembly between with carrier assembly and elevating system to allow carrier assembly to can the horizontal slip for elevating system, and set up the bearing locating piece that possesses the location inclined plane on bearing plate, like this when bearing plate is close to and the butt with the thing that bears, the location inclined plane can drive bearing plate level according to shape fit effect and float, finally realizes the technical effect that can automatic positioning between carrier assembly and the thing that bears.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic view of a lift truck provided in an embodiment of the present application;

FIG. 2 is a schematic view of a part of the structure of a forklift truck provided in an embodiment of the present application;

fig. 3 is a schematic view of a partial structure of a forklift truck according to an embodiment of the present application.

Reference numerals:

the device comprises a vehicle body 1, a lifting mechanism 2, a horizontal floating assembly 3, a bearing assembly 4, a scissor assembly 5, a scissor assembly chassis 6, a lead screw 20, a nut 22, a horizontal sliding block 30, a horizontal sliding rail 32, an elastic arm 34, a bearing supporting plate 40, a bearing positioning piece 42, a bearing protective plate 44, a positioning distance measuring piece 46, a position measuring piece 48, a rotating end 50, a sliding end 52, a first abutting surface 300, a second abutting surface 302, a spring 340, a spring pretightening force adjusting piece 342, a bearing surface 400, a positioning inclined surface 420, a first horizontal direction a and a second horizontal direction b.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of 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.

The embodiment of the present application provides a forklift, as shown in fig. 1, the forklift shown in fig. 1 includes a body 1, a lifting mechanism 2, a horizontal floating assembly 3, and a carrying assembly 4, wherein the body 1 may be a box-type body as shown in fig. 1 and is disposed on one side of the lifting mechanism 2, the body 1 shown in fig. 1 does not have exposed wheels, the wheels are hidden inside a housing of the body 1, or may be configured to be a structure similar to a running chassis with the exposed wheels, the lifting mechanism 2, the horizontal floating assembly 3, and the like are supported above the body, the body 1 may be in the form of a large-sized carrier vehicle or a small-sized vehicle, the size and the form of the body are not limited in the embodiment of the present application, and the body may run and carry other assemblies. The carrying assembly 4 of the forklift shown in fig. 1 is provided with only one carrying pallet 40 for supporting the carried objects such as robots, cargo boxes and the like, and can be provided with 2 carrying pallets according to specific needs, so as to form a form similar to a double-fork arm of a common forklift, and can be provided with 3 or more carrying pallets, and the forklift provided with one carrying pallet 40 is exemplified here.

The lifting mechanism 2 according to the embodiment of the present invention is connected to the load bearing member 4 through the horizontal floating member 3, and the lifting mechanism 2 is used for lifting the horizontal floating member 3 and the load bearing member 4, and further lifting a lifted object, such as a cargo container or a machine, placed on the load bearing member 4, and the forklift according to the embodiment of the present invention is preferably adapted to lift and transport an automatic traveling robot, so that the lifting height does not need to be high, as shown in fig. 3, and the lifting mechanism 2 according to the embodiment of the present invention is a ball screw assembly including a screw 20 and a nut 22, the screw 20 is connected to the body 1 and extends in a vertical direction as shown in fig. 1 and 3, and the nut 22 is sleeved on the screw 20 and connected to the horizontal floating member 3, so that when the screw 20 rotates, the nut 22 is lifted to lift the horizontal floating member 3. Elevating system 2 can also set up to other structures such as multisection arm, can possess the lifting function can, this application embodiment uses the ball screw subassembly, mainly is in order to improve the stability in promotion and the transportation.

The main body of the bearing assembly 4 shown in fig. 1 is shaped like a tongue plate, or may be in a fork shape formed by two fork arms, and the like, and can lift up a load-bearing object such as a cargo box, and in this embodiment, the bearing assembly 4 is connected with the lifting mechanism 2 through the horizontal floating assembly 3 and extends in the direction away from the lifting mechanism 2 along the first horizontal direction a shown in fig. 2, so that a shape similar to a lifting arm extending out of the lifting mechanism 2 can be formed, and when a lifting task is completed, the cargo box is placed on the bearing assembly 4 similar to the lifting arm, and then the bearing assembly 4 is lifted up by the lifting mechanism 2, and then the lifting is completed. The first horizontal direction a described here is a horizontal direction away from the lifting mechanism 2 in the horizontal direction, as shown in fig. 2.

As shown in fig. 2, in order to enable the bearing component 4 to float according to a certain structural design when placing the object to be carried, and further achieve the function of automatic positioning, the horizontal floating component 3 can enable the bearing component 4 to move relative to the lifting mechanism 2 along a second horizontal direction b perpendicular to the first horizontal direction a, as shown in fig. 2, the horizontal floating component 3 is configured to include a horizontal slider 30 and a horizontal sliding rail 32, one of the horizontal slider 30 and the horizontal sliding rail 32 is connected with the lifting mechanism 2, and the other one is connected with the bearing component 4, as shown in the embodiment shown in fig. 2, the horizontal slider 30 is connected with the bearing component 4, the horizontal sliding rail 32 is connected with the lifting mechanism 2, or vice versa, by configuring the horizontal sliding rail 32 to extend along the second horizontal direction b, so that the horizontal slider 30 can also move along the second horizontal direction b, the horizontal slider 30 can drive the carrier assembly 4 to move relative to the lifting mechanism 2 along the second horizontal direction b. The horizontal floating assembly 3 can also be set to swing rods and other components capable of driving the lifting mechanism 2 to float along the second horizontal direction b, wherein the swing rods and other components can float along the second horizontal direction b, the components are not listed one by one here, the horizontal sliding rails 32 can be arranged in the vertical direction and are parallel to each other, the corresponding horizontal sliding blocks 30 are set to be two, and the two horizontal sliding blocks 32 respectively slide along the two horizontal sliding rails 32, as shown in fig. 3, so that the sliding stability is better, the horizontal floating assembly 3 used in the embodiment of the application comprises the structures of the horizontal sliding blocks 30 and the horizontal sliding rails 32, and the stability of the floating action is mainly improved.

As shown in fig. 1, the carrying assembly 4 includes a carrying pallet 40 and a carrying positioning member 42, the carrying pallet 40 is configured to have an approximately conical structure as shown in fig. 1, because the forklift provided in the embodiment of the present application is mainly used for lifting the automatic traveling robot, and during a specific use process, the carrying pallet 40 extends from below the chassis of the automatic traveling robot and is lifted upwards, and the approximately conical structure helps to simplify the extending action.

In order to realize the automatic positioning of the bearing plate 40 in the process of lifting the supported object, the bearing plate 40 has an upward bearing surface 400 for bearing the supported object, the bearing positioning member 42 is disposed on the bearing surface 400, and may be a structure which is approximately conical and protrudes upward as shown in fig. 2, or may be a structure which is approximately socket-shaped and protrudes downward, and correspondingly, the corresponding positioning structure on the supported object is socket-shaped or conical, the bearing positioning member 42 has a positioning inclined surface 420, the positioning inclined surface 420 may be a side surface with a certain volume, such as one side surface of a triangular pyramid, or an infinitesimal side surface of a conical or truncated cone, a plurality of such infinitesimal side surfaces are spliced to form a complete peripheral surface, as shown in fig. 2, when the bearing positioning member 42 is set to be conical and protrudes upward, the positioning inclined surface 420 is set to be a side surface facing a second horizontal direction b in a conical shape, the positioning inclined plane 420 may be two sides or one side, when the bearing positioning member 42 is configured as a socket shape which is recessed downward, the positioning inclined plane 420 is configured as an inner side surface of the socket hole facing the second horizontal direction b, that is, the bearing positioning member 42 described in the embodiment of the present application may have various shapes, and the positioning inclined plane may have an inclined positioning surface facing the second horizontal direction b as shown in fig. 2, when the bearing supporting plate 40 is close to the object to be carried, even if there is a certain degree of inaccurate positioning, as long as a part of the object to be carried can be made to be the corresponding positioning structure described above, or a part of the fixing structure of the object to be carried itself is abutted against the positioning inclined plane 420, because the positioning inclined plane 420 is an inclined plane, a component force can be generated in the second horizontal direction b, and then the positioning inclined plane 420 is driven to move along the second horizontal direction b, and the bearing assembly 4 is driven to float horizontally, thereby the bearing supporting plate 40 is better aligned with the carried object, and the technical effect of automatic positioning is realized.

As mentioned above, the bearing positioning member 42 may have two positioning slopes 420 that face away from each other, which may enlarge the range of allowing mutual misalignment between the carried object and the bearing positioning member 42, thereby further reducing the alignment difficulty. As shown in fig. 2, when the bearing positioning member 42 is disposed in a conical shape, two positioning slopes 420 are provided, that is, two sides of the conical bearing positioning member 42 facing the second horizontal direction b are provided. As shown in fig. 2, the carrying assembly 4 includes a plurality of carrying positioning members 42, which not only can achieve the effect of automatic positioning, but also can avoid the risk that the carried object rotates on the carrying pallet 40 and gets out of the carrying pallet 40.

In order to increase the stability of the carrying pallet 40 when carrying a load, the forklift described in the embodiment of the present application further includes a scissor assembly 5 and a scissor assembly chassis 6, the scissor assembly 5 includes at least two rotating ends 50 and at least two sliding ends 52 which are mutually deviated as shown in fig. 1, the rotating ends 50 and the sliding ends 52 can be set to 2 as shown in fig. 1, the stable lifting which can be provided by the scissor assembly 5 formed by such setting is more, or can be set to 1 or other numbers, the setting can be performed according to specific needs, the rotating ends 50 and the sliding ends 52 are both connected with the carrying pallet 40 and the scissor assembly chassis 6, the scissor assembly chassis 6 is arranged opposite to the carrying pallet 40 and is connected with the vehicle body 1, so as shown in fig. 1, the scissor assembly 5 can be normally extended and retracted. The scissors assembly 5 according to the embodiment of the present application does not have a power source, and is used only as a stable structure.

In order to enable the horizontal sliding block 30 to return to a predetermined position, such as the middle position of the horizontal sliding rail 32, when the forklift does not work, as shown in fig. 2, the horizontal floating assembly 3 according to the embodiment of the present invention further includes a pair of elastic arms 34 disposed oppositely, the elastic arms 34 both extend along the second horizontal direction b, as shown in fig. 2, the elastic arms 34 may be disposed with springs as the main body, or may be disposed with elastic rubbers as the main body, the horizontal sliding block 30 has a first abutting surface 300 and a second abutting surface 302 facing the second horizontal direction b and deviating from each other, opposite ends of the pair of elastic arms 34 abut against the first abutting surface 300 and the second abutting surface 302, and ends of the elastic arms 34 deviating from each other are connected to the lifting mechanism 2, thereby forming a clamping structure, such that when the horizontal sliding block 30 slides along the second horizontal direction b, the elastic arms 34 can be driven and elastically deformed, by means of the elastic deformation, the horizontal sliding block 30 will return to the position where the two elastic arms 34 have the same elasticity, thereby achieving the effect of automatic return. When the main body of the elastic arm 34 is the spring 340 shown in fig. 2, the elastic arm may further include a spring pre-tightening force adjusting part 342, the spring pre-tightening force adjusting part 342 is fixedly connected to the lifting mechanism 2 and abuts against one end of the spring 340 away from the horizontal slider 30, the spring pre-tightening force adjusting part 342 may be a telescopic plate similar to a scissor structure, and the adjusting end is a small telescopic arm, which can change the length of the spring 340 and then change the pre-tightening force of the spring 340, so that the final return stable position of the horizontal slider 30 can be changed.

In order to reduce the probability of damage to the fragile horizontal floating assembly 3 caused by collision of the carried object during the process of lifting the carried object, as shown in the figure, the carrying assembly 4 further includes a carrying protection plate 44, the carrying support plate 40 is connected with the horizontal floating assembly 3 through the carrying protection plate 44, as shown in fig. 1, the carrying protection plate 44 is connected with the horizontal slider 30 and shields one side of the horizontal slider 30 facing the carrying support plate 40, the carrying protection plate 44 extends along the vertical direction, the main surface of the carrying protection plate 44 is perpendicular to the first horizontal direction a, the carrying support plate 40 is connected with the lower end of the carrying protection plate 44, as shown in the figure, the carrying protection plate 44 is vertically connected and integrally arranged, so as to obtain the best mechanical strength, and a certain angle can be provided according to actual needs.

The lifting mechanism 2 in the embodiment of the present application is a ball screw assembly, and includes a screw 20 and a nut 22, as shown in fig. 3, the screw 20 is connected to the vehicle body 1 and extends in a vertical direction, the nut 22 is sleeved on the screw 20 and is connected to the horizontal floating assembly 3, so that when the screw 20 is driven to rotate, the nut 22 can ascend or descend and drive the horizontal floating assembly 3 to ascend or descend, the forklift described in the embodiment of the present application is preferably suitable for lifting an automatic traveling robot, so that an excessive lifting height is not required, and instead, the stability of lifting is emphasized, so that the lifting mechanism 2 in the embodiment of the present application can be set as a ball screw assembly.

In order to better monitor the positioning effect and the recovery effect of the supporting board 40, the supporting assembly 4 further includes a positioning distance measuring device 46 and a positioning device 48, the positioning distance measuring device is connected to the supporting board 40 and is used for measuring the distance between the supporting surface 400 and the object to be supported, for example, if the measured distance exceeds a preset range, it can be determined that the conical supporting positioning device 42 does not extend into the circular hole-shaped object to be supported below the object to be supported, resulting in a larger distance.

The position measuring member 48 is connected to the support plate 40 and is used for measuring the horizontal position of the support plate 40, so as to determine whether the support plate 40 can return to the predetermined position, thereby facilitating the adjustment of the above-mentioned structures such as the spring preload adjusting member 342. The positioning and ranging

members

46, 48 may be one or more of a laser positioning member, an ultrasonic positioning member, and an infrared positioning member.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalents, improvements and the like made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a forklift, its characterized in that, includes automobile body, elevating system, horizontal floating assembly and is used for bearing the weight of the load-bearing assembly of thing, wherein:

the vehicle body is connected with the lifting mechanism, the bearing component is connected with the lifting mechanism through the horizontal floating component and extends in a direction away from the lifting mechanism along a first horizontal direction, and the horizontal floating component can enable the bearing component to move relative to the lifting mechanism along a second horizontal direction perpendicular to the first horizontal direction;

the bearing component comprises a bearing supporting plate and a bearing positioning piece, the bearing supporting plate is provided with a bearing surface which faces upwards and is used for bearing a borne object, the bearing positioning piece is arranged on the bearing surface, the bearing positioning piece is provided with a positioning inclined plane facing to the second horizontal direction, and when the borne object is abutted to the positioning inclined plane, the positioning inclined plane can move along the second horizontal direction and drive the bearing component to float horizontally.

2. The forklift of claim 1, wherein the load bearing positioning member is a positioning pile protruding from the load bearing surface.

3. Fork lift truck as claimed in claim 1, characterized in that the load-bearing location part is provided with two locating ramps facing away from each other.

4. The lift truck of claim 1, wherein said load bearing assembly includes a plurality of said load bearing locators.

5. The lift truck of claim 1, further comprising a scissor assembly and a scissor assembly chassis, the scissor assembly including at least two rotating ends and at least two sliding ends, the scissor assembly chassis coupled to the body and extending in the first horizontal direction, the scissor assembly chassis disposed vertically opposite the load bearing plate, the rotating ends coupled to the load bearing plate and the scissor assembly chassis, respectively, and the sliding ends coupled to the load bearing plate and the scissor assembly chassis, respectively.

6. The lift truck of claim 1, wherein the horizontal float assembly includes a horizontal slide rail and a horizontal slider, the horizontal slider slidably coupled to the horizontal slide rail and slidable relative to the horizontal slide rail in the second horizontal direction, one of the horizontal slide rail and the horizontal slider coupled to the lift mechanism and the other of the horizontal slide rail and the horizontal slider coupled to the load bearing assembly.

7. The forklift of claim 6, wherein the horizontal floating assembly further comprises a pair of oppositely disposed resilient arms, the resilient arms each extending in the second horizontal direction, the horizontal slider having a first abutting surface and a second abutting surface facing in the second horizontal direction and facing away from each other, opposite ends of the pair of resilient arms respectively abutting against the first abutting surface and the second abutting surface, opposite ends of the pair of resilient arms each being connected to the lifting mechanism, the resilient arms being capable of being resiliently deformed following sliding of the horizontal slider in the second horizontal direction.

8. The forklift of claim 7, wherein the resilient arm includes a spring and a spring preload adjuster, the spring preload adjuster is fixedly connected to the lifting mechanism and abuts against an end of the spring away from the horizontal slider, an end of the spring preload adjuster abutting against the spring is an adjustment end, and the spring preload adjuster is capable of changing the preload of the spring by changing a distance between the adjustment end and the horizontal slider.

9. The lift truck of claim 1, wherein said load bearing assembly further comprises a load bearing fender, said load bearing plate being connected to said horizontally buoyant assembly by said load bearing fender, said load bearing fender extending in a vertical direction with a major face of said load bearing fender perpendicular to said first horizontal direction, said load bearing plate being connected to a lower end of said load bearing fender; the bearing assembly further comprises a positioning distance measuring piece, and the positioning distance measuring piece is connected with the bearing supporting plate and is used for measuring the distance between the bearing surface and the supported object.

10. The lift truck of claim 1, wherein the load bearing assembly further comprises a position measuring member coupled to the load bearing pallet for measuring a horizontal position of the load bearing pallet.