CN114044469B

CN114044469B - Fork truck and fork assembly thereof

Info

Publication number: CN114044469B
Application number: CN202111434109.2A
Authority: CN
Inventors: 戴欢
Original assignee: Hangzhou Hikrobot Co Ltd
Current assignee: Hangzhou Hikrobot Co Ltd
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2023-06-30
Anticipated expiration: 2041-11-29
Also published as: CN114044469A

Abstract

The application discloses fork truck and fork subassembly thereof, the fork subassembly includes fork frame, fork and actuating mechanism, wherein: the fork comprises a bearing part and a mounting part which are connected, the fork is movably arranged on a fork frame through the mounting part, and the bearing part is used for bearing goods; the fork frame is provided with an open accommodating cavity, the driving mechanism is at least partially arranged in the accommodating cavity, and the driving mechanism is connected with the fork through the opening of the accommodating cavity and is used for driving the fork to move. The scheme can reduce the load loss distance of the fork.

Description

Fork truck and fork assembly thereof

Technical Field

The application relates to the technical field of forks, in particular to a forklift and a fork assembly thereof.

Background

With the continuous improvement of the requirements on logistics efficiency, the popularity of forklift trucks is increasing. The fork is used as a common accessory of a forklift, and the fork needs to be movably arranged in order to adapt to more application scenes.

In the related art, a fork and a side shifter of a forklift are both mounted on a fork frame, and the fork frame, the fork and the side shifter are stacked along the extending direction of the fork, so that the fork with the structural layout has a larger off-load distance; when the load center of the forklift is correspondingly moved forward when the load center is applied to the forklift, so that the bearing capacity of the forklift is reduced.

Disclosure of Invention

The application discloses fork truck and fork subassembly thereof to reduce the off-load distance of fork.

In order to solve the problems, the application adopts the following technical scheme:

in a first aspect, the present application provides a fork assembly for a forklift, comprising a fork carriage, a fork and a drive mechanism, wherein:

the fork comprises a bearing part and a mounting part which are connected, the fork is movably arranged on a fork frame through the mounting part, and the bearing part is used for bearing goods;

the fork frame is provided with an open accommodating cavity, the driving mechanism is at least partially arranged in the accommodating cavity, and the driving mechanism is connected with the fork through the opening of the accommodating cavity and is used for driving the fork to move.

In a second aspect, the present application provides a forklift comprising the pallet fork assembly of the first aspect of the present application.

The technical scheme that this application adopted can reach following beneficial effect:

in the fork assembly of fork truck that this application disclosed, open holding chamber has been seted up to the fork frame to through setting up at least partial actuating mechanism in the holding intracavity, will also inlay actuating mechanism and establish inside the fork frame, so, can undoubtedly reduce the fork assembly in the ascending overall dimension of fork's extending direction, and then effectively reduce the holistic off-load distance of fork assembly.

Compared with the prior art, after the fork assembly disclosed by the application is applied to a forklift, the load center of the forklift can be moved backwards, and then the technical effect of improving the bearing capacity of the forklift is achieved.

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 embodiments of the application and together with the description serve to explain the application and do not constitute an undue limitation to the application. In the drawings:

FIG. 1 is a schematic diagram of an exploded construction of a fork assembly according to an embodiment of the present disclosure;

FIG. 2 is a front view of a fork assembly as disclosed in an embodiment of the present application;

FIG. 3 is a schematic diagram illustrating operation of a fork assembly according to an embodiment of the present disclosure;

FIG. 4 is a schematic view of the structure of a fork carriage disclosed in an embodiment of the present application;

FIG. 5 is a side cross-sectional view of a fork assembly as disclosed in an embodiment of the present application;

FIG. 6 is an enlarged view of a portion of FIG. 5 at A;

fig. 7 is a schematic structural diagram of a first pushing component disclosed in an embodiment of the present application;

FIG. 8 is a schematic diagram illustrating a relationship between a second pushing component and a fork according to an embodiment of the present disclosure;

fig. 9 is a schematic diagram illustrating a matching relationship between a switching assembly and a pallet fork according to an embodiment of the present disclosure.

Reference numerals illustrate:

100-fork frame, 110-accommodating cavity, 120-third guide rail, 130-fourth guide rail,

200-forks, 210-bearing parts, 220-mounting parts, 221-first clamping grooves, 222-second clamping grooves,

300-drive mechanism, 310-drive device, 320-pushing assembly, 321-base plate, 322-pushing piece, 322 a-first projection, 322 b-second projection, 322 c-main body, 322 d-first arm, 322 e-second arm,

C-first buffer gap, S1-avoidance space, F-fastener,

330-transmission assembly, 331-first sprocket, 332-second sprocket, 333-transmission chain, 333 a-first chain segment, 333 b-second chain segment, 333 c-chain connecting base,

400-a first guide rail, 500-a second guide rail, S2-a slide block,

600-position sensor, 700-locking device, 800-cable protection device.

Detailed Description

For the purposes, technical solutions and advantages of the present application, the technical solutions of the present application will be clearly and completely described below with reference to specific embodiments of the present application and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

The following describes in detail the technical solutions disclosed in the embodiments of the present application with reference to the accompanying drawings.

In order to solve the technical problems that the load loss distance is large and the carrying capacity of a forklift is insufficient in a fork of the related art, the embodiment of the application provides a fork assembly of the forklift.

As shown in fig. 1-9, the fork assembly disclosed in the embodiments of the present application includes a fork carriage 100, a fork 200, and a drive mechanism 300.

Among other things, the fork carriage 100 is a base member of a fork assembly that can serve as a mounting base for the forks 200 and the drive mechanism 300. Specifically, the fork 200 is movably disposed on the fork carriage 100 such that the fork 200 can be moved relative to the fork carriage 100.

The fork 200 includes a carrying portion 210 and a mounting portion 220 connected to each other, the fork 200 is movably disposed on the fork frame 100 through the mounting portion 220, and the carrying portion 210 is used for carrying cargo. By controlling the movement of the fork 200, the position of the carrying portion 210 can be adjusted to meet various carrying requirements of the cargo.

In the present embodiment, the specific number of forks 200 is not limited, and may be two, three, etc.

The specific shape of the pallet fork 200 is not limited in the embodiment of the present application, for example, the carrying portion 210 and the mounting portion 220 are disposed at a predetermined angle, and optionally, the predetermined angle is 90 °.

As shown in fig. 1-3, in an alternative embodiment, the fork assembly of the present application may include two forks 200, each of which 200 may be moved relative to the fork carriage 100. Meanwhile, the two forks 200 are arranged side by side on the fork frame 100, so that when the two forks move laterally, the two forks can move close to each other or move away from each other, and the distance between the two forks 200 is adjusted, so that the two forks can be adapted to bear cargoes of different specifications. At this time, the fork assembly is a roll adjustment fork assembly.

The drive mechanism 300 is a power member of the fork assembly that is coupled to the fork 200 and is used to drive the movement of the fork 200. In the case of two forks 200, the driving mechanism 300 is used to drive the two forks 200 toward each other or away from each other.

In the embodiment of the present application, the fork frame 100 is provided with an open accommodating cavity 110, the driving mechanism 300 is at least partially disposed in the accommodating cavity 110, and the driving mechanism 300 is connected with the fork 200 through the opening of the accommodating cavity 110.

Specifically, the accommodating cavity 110 provides an installation space for the driving mechanism 300, and the driving mechanism 300 may be partially disposed in the accommodating cavity 110 or may be disposed in the accommodating cavity 110 entirely; since the accommodating cavity 110 is of an open structure, the driving mechanism 300 can be smoothly connected with the fork 200 through the opening of the accommodating cavity 110, so as to drive the fork 200 to move.

Just because the actuating mechanism 300 of this application embodiment can be at least partially installed in the accommodation chamber 110, just be equivalent to at least partially inlay actuating mechanism 300 in the inside of fork truck 100, under such circumstances, compare in the scheme that the extending direction of fork was all piled up along to fork truck, fork and side shifter in the related art, the actuating mechanism 300 of this application embodiment and fork truck 100 are less in the ascending thickness of piling up of extending direction of fork 200, consequently, from fork assembly overall, the overall dimension along the extending direction of fork 200 tends to be reduced, and then the off-load distance of fork assembly is reduced.

When the fork assembly of the embodiment of the application is applied to a forklift, under the condition that the off-load distance of the fork assembly is smaller, the load center of the forklift can be enabled to move backwards, and then the technical purpose of improving the bearing capacity of the forklift is achieved. It should be understood that the center of load of the forklift is shifted rearward, that is, the center of load of the forklift is shifted toward the body side of the forklift.

As can be seen from the above description, in the fork assembly of the forklift disclosed in the embodiments of the present application, the fork frame 100 is provided with the open accommodating cavity 110, and at least a portion of the driving mechanism 300 is disposed in the accommodating cavity 110, that is, the driving mechanism 300 is embedded in the fork frame 100, so that the overall size of the fork assembly in the extending direction of the fork 200 can be certainly reduced, and further the overall load loss distance of the fork assembly can be effectively reduced.

Compared with the prior art, after the fork assembly disclosed by the embodiment of the application is applied to a forklift, the load center of the forklift can be moved backwards, and then the technical effect of improving the bearing capacity of the forklift is achieved. In the present embodiment, the engagement relationship between the drive mechanism 300 and the pallet fork 200 is of various types.

In an alternative, as shown in fig. 9, the driving mechanism 300 of the embodiment of the present application may include a driving device 310 and an equal number of adapter assemblies as the forks 200, wherein: the adapter assembly includes a base 321 and a fastener F, the fork 200 is connected to the base 321 by the fastener F, and the driving device 310 is connected to the base 321 and is used for driving the adapter assembly to move.

Under this structural layout, since the fork 200 is directly connected with the base plate 321 through the fastening member F, when the driving device 310 drives the base plate 321 to move, the fork 200 is driven to move through the fastening member F, so as to further realize the distance adjusting function between the two forks 200. In the embodiment of the application, the types of the fasteners F can be various, and alternatively, the fasteners F are pin shafts; further, the fastener F may be a screw, a bolt, or the like.

In the scheme that the driving mechanism 300 and the pallet fork 200 have a direct connection relationship, because the pallet fork 200 may have mechanical collision when carrying goods, so that acting force is transmitted to the driving mechanism 300 through the pallet fork 200, and the driving mechanism 300 is damaged, thereby influencing the service life.

Based on this, in an alternative, as shown in fig. 1, 2, and 5-7, the driving mechanism 300 of the embodiment of the present application may include a driving device 310 and a pushing assembly 320 equal in number to the forks 200, wherein: the pushing component 320 includes a base 321 and a pushing piece 322, and the pushing piece 322 is disposed on the base 321; the pushing piece 322 can be in limit fit with the fork 200 at two sides of the mounting part 220 along the width direction; the driving device 310 is connected with the base plate 321 and is used for driving the pushing component 320 to move; a first buffer gap C is provided between the mounting portion 220 and the corresponding substrate 321; in the extending direction of the carrying portion 210, the fork carriage 100 can be in a limit fit with the mounting portion 220.

It should be understood that the base plate 321 is a bearing base of the pushing member 322, and when the driving device 310 drives the base plate 321 to move, the pushing member 322 can move along with the base plate 321. Because the pushing piece 322 can be in limit fit with the mounting portion 220 at two sides of the width direction of the mounting portion 220, when the pushing piece 322 and the mounting portion are in limit contact, the driving device 310 can drive the whole pushing component 320, and the pushing piece 322 drives the fork 200 to move; the driving device 310 drives the pushing component 320 to move in different directions, so that the pushing component 322 can drive the fork 200 to move in different directions on two sides of the mounting portion 220 in the width direction.

In embodiments in which the fork assembly includes a plurality of forks 200, the cooperation of the plurality of forks 200 may be facilitated by the cooperation of the driving device 310 and the plurality of pushing assemblies 320.

Meanwhile, since the first buffer clearance C between the mounting portion 220 and the corresponding base plate 321 is reserved during processing, the abutting relationship between the fork 200 and the base plate 321 is avoided. Meanwhile, since the fork frame 100 can be in limit fit with the mounting portion 220 in the extending direction of the bearing portion 210, in this case, when the fork 200 is mechanically collided, the acting force is transmitted to the fork frame 100 by the acting force transmission path, and the fork frame 100 is transmitted to the forklift, so that the bearing capacity of the forklift is strong, and the acting force can be borne without being damaged.

From the above analysis, the first buffer clearance C blocks the force from being directly transmitted from the fork 200 to the driving mechanism 300, so as to avoid damage to the driving mechanism 300 and protect the driving mechanism 300. In the embodiment in which the subsequent drive mechanism 300 includes a rail structure and a chain structure, such a structural arrangement may prevent damage to the rail structure and the chain structure, etc.

In the embodiment of the present application, the type of the driving device 310 may be selected according to the actual working condition, for example, the driving device 310 may be a linear motor, a hydraulic telescopic assembly, a pneumatic telescopic assembly, etc.

In the embodiment of the present application, the pushing component 320 may be of various types, which is not limited by the embodiment of the present application.

In a specific embodiment, as shown in fig. 7, the pushing member 322 in the embodiment of the present application may include a first protrusion 322a and a second protrusion 322b, where the first protrusion 322a and the second protrusion 322b are disposed on the substrate 321 side by side, and a avoidance space S1 is defined between the first protrusion 322a and the second protrusion 322 b; the mounting portion 220 is at least partially disposed in the avoidance space S1 of the pushing member 322, and the mounting portion 220 and the corresponding first protrusion 322a and second protrusion 322b can be in limit fit.

It should be understood that, in this structural layout, the first protrusion 322a and the second protrusion 322b are disposed on the surface of the base 321 as protruding structures, and they respectively abut against the mounting portion 220 to limit the fork 200. When the base plate 321 is driven to move by the driving device 310, the first protrusion 322a and the second protrusion 322b move along with the base plate 321, and the fork 200 is driven to move as a whole because the two sides of the mounting portion 220 are in limit fit with the first protrusion 322a and the second protrusion 322 b. Of course, since the first protrusion 322a and the second protrusion 322b are located at two sides of the mounting portion 220, when the fork 200 is driven to move by different protrusion structures (i.e., the first protrusion 322a and the second protrusion 322 b), the moving direction of the fork 200 is correspondingly changed.

Meanwhile, the pushing piece 322 with the structural layout is of an open structure, so that the mounting portion 220 is placed in the avoidance space S1, and the mounting portion 220 is conveniently taken out of the avoidance space S1, and therefore, the pushing piece 322 with the structural layout can improve the convenience in dismounting of the fork 200. Of course, the mounting portion 220 may be partially provided in the escape space S1, or may be provided entirely in the escape space S1.

In another embodiment, as shown in fig. 8, the pushing member 322 of the embodiment of the present application may include a main body portion 322c, a first arm 322d and a second arm 322e, where the first arm 322d and the second arm 322e are respectively connected to two opposite sides of the main body portion 322c, and the first arm 322d is disposed opposite to the second arm 322 e; the pushing piece 322 is buckled on the mounting portion 220, the pushing piece 322 is fixedly connected with the base plate 321 through the first support arm 322d and the second support arm 322e, and a second buffer gap is arranged between the main body portion 322c and the end surface of the mounting portion 220, which is away from the base plate 321; the first arm 322d and the second arm 322e may be respectively engaged with the mounting portion 220 in a limited manner at two sides of the mounting portion 220 along the width direction thereof.

It should be understood that, under such a structural layout, when the mounting portion 220 abuts against the first arm 322d or the second arm 322e, the limit fit with the mounting portion 220 is achieved, and thus the overall limit of the fork 200 is achieved. In a specific installation process, the fork 200 is first installed on the fork frame 100, then the pushing piece 322 is buckled on the fork 200, and finally the pushing piece 322 is connected with the base plate 321. Alternatively, the bottoms of the first and

second arms

322d and 322e may be coupled to the base plate 321 by screws, pins, or the like. Since the second buffer gap exists between the main body portion 322c and the end surface of the mounting portion 220 facing away from the base plate 321, the mounting portion 220 and the main body portion 322c can be prevented from being in contact with each other, that is, damage to the driving mechanism 300 caused by transmission of force by the fork 200 is avoided.

Under such a setting, when the driving device 310 drives the base plate 321 to move, the pushing member 322 moves along with the base plate 321, so that the first arm 322d and the second arm 322e move relatively to the mounting portion 220, and the first arm 322d or the second arm 322e is in limit fit with the mounting portion 220, so that the mounting portion 220 is also driven to move, thereby realizing movement of the fork 200. Of course, since the first arm 322d and the second arm 322e are located at two sides of the fork 200, when the fork 200 is driven to move by different arm structures (i.e. the first arm 322d and the second arm 322 e), the moving direction of the fork 200 is correspondingly changed.

In order to improve the driving precision and stability, in an alternative solution, as shown in fig. 1 and 2, the number of the forks 200 is two, two forks 200 are arranged side by side on the fork frame 100, and the driving mechanism 300 is used for driving the two forks 200 to approach toward each other or to depart away from each other; the driving mechanism 300 of the embodiment of the present application may further include a transmission assembly 330, where the transmission assembly 330 includes a first sprocket 331, a second sprocket 332 and a transmission chain 333, the first sprocket 331 and the second sprocket 332 are rotatably disposed on the fork frame 100, and the transmission chain 333 is disposed on the first sprocket 331 and the second sprocket 332; the driving device 310 is connected with the first sprocket 331, the first sprocket 331 rotates under the driving of the driving device 310, and the transmission chain 333 is transmitted along with the rotation of the first sprocket 331; the driving chain 333 includes a first chain segment 333a and a second chain segment 333b between the first sprocket 331 and the second sprocket 332, wherein one base plate 321 is connected to the first chain segment 333a, and the other base plate 321 is connected to the second chain segment 333 b.

It should be appreciated that the first sprocket 331 is a drive wheel and the second sprocket 332 is a driven wheel, with the drive chain 333 being in meshing relationship with both the first sprocket 331 and the second sprocket 332. When the driving device 310 drives the first sprocket 331 to rotate, the driving chain 333 rotates along with the first sprocket 331, and the base plate 321 connected to the driving chain 333 moves along with the first sprocket 331, so as to drive the fork 200 to move.

Since the first chain segment 333a and the second chain segment 333b are located between the first sprocket 331 and the second sprocket 332, the first chain segment 333a and the second chain segment 333b are arranged opposite to each other, and the driving directions of the first chain segment 333a and the second chain segment 333b are opposite based on that the driving chain 333 as a whole can only be driven in a clockwise direction or a counterclockwise direction.

With this arrangement, in the specific transmission process of the transmission chain 333, the transmission directions of the first chain segment 333a and the second chain segment 333b are opposite, so that the two base plates 321 can move in opposite directions, and further the fork 200 can be moved toward or away from each other.

Specifically, as shown in fig. 3, when the driving chain 333 rotates counterclockwise, the first chain segment 333a drives the right base plate 321 to move along the horizontal left direction, and the second chain segment 333b drives the left base plate 321 to move along the horizontal right direction, so that two base plates 321 can be moved toward each other, and two forks 200 can be moved toward each other; when the driving chain 333 rotates clockwise, the first chain segment 333a drives the right base plate 321 to move along the horizontal right direction, and the second chain segment 333b drives the left base plate 321 to move along the horizontal left direction, so that the two base plates 321 can be away from each other, and the two forks 200 can be driven to be away from each other.

It should be noted that, the first sprocket 331, the second sprocket 332 and the transmission chain 333 in this embodiment form a sprocket chain assembly, and the sprocket chain assembly has the advantages of high transmission precision and good transmission stability, and will not be described herein. As shown in fig. 1 and 3, a chain connection seat 333c may be provided on the driving chain 333, and the driving chain 333 may be connected to the base plate 321 through the chain connection seat 333 c. Of course, as shown in fig. 2, the drive chain 333 may also be connected to the fork carriage 100 by a chain connecting seat 333c, and the chain connecting seat 333c supports the drive chain 333.

In an alternative solution, as shown in fig. 1 and fig. 2, the fork assembly of the embodiment of the present application further includes a first rail 400, where the first rail 400 is disposed in the accommodating cavity 110, the extending direction of the first rail 400 is consistent with the moving direction of the fork 200, and the base 321 is slidably matched with the first rail 400; and/or, the fork assembly further comprises a second guide rail 500, the second guide rail 500 is disposed in the accommodating cavity 110, the extending direction of the second guide rail 500 is consistent with the moving direction of the fork 200, and the base 321 is slidably matched with the second guide rail 500.

It should be understood that in the fork assembly of the present embodiment, the first rail 400 and the second rail 500 may be provided at the same time, or only one of them may be provided.

Under the condition that only the first guide rail 400 (or the second guide rail 500) is arranged, when the base plate 321 is in sliding fit with the first guide rail 400 (or the second guide rail 500), the first guide rail 400 (or the second guide rail 500) can restrict the moving path of the base plate 321, and then the moving path of the fork 200 is guided, so that the deflection of the fork 200 during moving is avoided, abrasion between the fork 200 and the fork frame 100 is avoided, the service life of the internal structure of the fork assembly is prolonged, and the stability of the moving action of the fork 200 is improved.

Meanwhile, since the first guide rail 400 (or the second guide rail 500) is located in the accommodating cavity 110, the first guide rail 400 (or the second guide rail 500) does not occupy the space between the fork frame 100 and the fork 200, so that the overall size of the fork assembly in the extending direction of the fork 200 can be reduced, and the off-load distance of the fork assembly can be reduced.

In the case where the first rail 400 and the second rail 500 are provided at the same time, the base 321 is slidably engaged with the two rail structures, so that the guiding function of the fork 200 can be enhanced, and the stability of the movement of the fork 200 can be further improved.

As shown in fig. 1 and 2, in the foregoing embodiment in which the transmission assembly 330 includes the first sprocket 331, the second sprocket 332 and the transmission chain 333, the fork assembly according to the embodiment of the present application may further include a first guide rail 400 and a second guide rail 500, where the first guide rail 400 and the second guide rail 500 are both disposed in the accommodating cavity 110, the first guide rail 400 is disposed on a side of the transmission assembly 330 near the first chain segment 333a, and the second guide rail 500 is disposed on a side of the transmission assembly 330 near the second chain segment 333 b; the extending directions of the first guide rail 400 and the second guide rail 500 are identical to the moving direction of the fork 200, and the base 321 is simultaneously slidably engaged with the first guide rail 400 and the second guide rail 500.

Under such a structural layout, since the first guide rail 400 and the second guide rail 500 are respectively disposed at two sides of the transmission assembly 330, the fork 200 can be guided at two sides of the transmission assembly 330, and the overall distribution of the guiding forces is more balanced, so that the stability of the movement of the fork 200 can be further improved.

As shown in fig. 1 and 5, in embodiments where the fork assembly includes a rail structure (first rail 400 and/or second rail 500), the base 321 may be a sliding fit over the rail structure via a slider S2.

In the embodiment of the present application, the fork 200 may have various moving engagement relationship with the fork carriage 100, for example, the top of the fork 200 may be provided with a hooking structure and be movably hung on the fork carriage 100 through the hooking structure.

In another embodiment, as shown in fig. 4 and 5, the mounting portion 220 of the embodiment of the present application is provided with a first clamping groove 221 and a second clamping groove 222 that are arranged oppositely, and the extending directions of the first clamping groove 221 and the second clamping groove 222 are consistent; the fork frame 100 is provided with a third guide rail 120 and a fourth guide rail 130 which are arranged in opposite directions, and the extension directions of the third guide rail 120 and the fourth guide rail 130 are consistent; the first clamping groove 221 can be clamped and matched with the third guide rail 120, and the first clamping groove and the third guide rail can slide relatively; the second clamping groove 222 is in clamping fit with the fourth guide rail 130, and the second clamping groove and the fourth guide rail can slide relatively.

Specifically, the mounting portion 220 may be respectively engaged with the third rail 120 and the fourth rail 130 through the first slot 221 and the second slot 222, so as to mount the fork 200 on the fork frame 100; of course, the extending directions of the first clamping groove 221, the second clamping groove 222, the third rail 120 and the fourth rail 130 need to be preset to match the moving direction of the fork 200. As shown in fig. 5, under such a structural layout, the fork frame 100 can be assembled by clamping the upper and lower sides of the fork 200 through the third guide rail 120 and the fourth guide rail 130, so that the problem that the fork 200 is easily separated from the fork frame 100 only by top mounting can be avoided, and the connection reliability of the fork 200 and the fork frame 100 is further improved.

Of course, in this structural layout, the forks 200 need to be disposed in an open manner on at least one side of the extending directions of the first and second clamping

grooves

221 and 222, so that the third rail 120 slides in through the open side of the first clamping groove 221 and the fourth rail 130 slides in through the open side of the second clamping groove 222, thereby realizing the mounting of the forks 200 on the fork carriage 100; when the disassembly is required, the mounting part 220 of the fork 200 is directly pulled out from one side of the fork frame 100; the structure layout is simple in structure, and can certainly improve the disassembly and assembly convenience of the pallet fork 200.

As shown in fig. 1, 2 and 5, the fork assembly according to the embodiments of the present application may further include a position sensor 600, where the position sensor 600 is configured to detect position information of the mounting portion 220, so as to detect position information of the fork 200.

As shown in fig. 1, 2 and 5, the fork assembly according to the embodiment of the present application may further include a locking device 700, where the locking device 700 is configured to lock the fork 200 after the fork 200 loads the cargo, so as to avoid the fork 200 from shaking when the fork truck transfers the cargo, and thus, the reliability of transferring the cargo by the fork 200 may be improved. Alternatively, the locking device 700 may be a threaded fastener extending through the fork 200, which may be tightened against the fork carriage 100 by tightening the threaded fastener, thereby locking the fork 200.

As shown in fig. 1, the pallet fork assembly according to the embodiment of the present application may further include a cable protection device 800, where the cable protection device 800 may perform a beam-closing protection on various connection cables inside the pallet fork assembly, so as to avoid the problems of scattering and damage of the cables. In particular, the cable protection device 800 may be a drag chain, see in particular fig. 1.

Based on the foregoing pallet fork assembly, the embodiment of the present application further provides a forklift, which includes the pallet fork assembly mentioned in any of the foregoing schemes, so that the forklift has the beneficial effects of any of the foregoing schemes, which is not described herein again.

In the embodiments described above, the differences between the embodiments are mainly described, and as long as there is no contradiction between the different optimization features between the embodiments, the different optimization features may be combined to form a better embodiment, and in consideration of brevity of line text, the description is omitted here.

The foregoing is merely exemplary of the present application and is not intended to limit the present application. Various modifications and changes may be made to the present application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc. which are within the spirit and principles of the present application are intended to be included within the scope of the claims of the present application.

Claims

1. Fork assembly of a fork truck, comprising a fork carriage (100), a fork (200) and a drive mechanism (300), wherein:

the fork (200) comprises a bearing part (210) and a mounting part (220) which are connected, the fork (200) is movably arranged on the fork frame (100) through the mounting part (220), and the bearing part (210) is used for bearing cargoes;

the fork frame (100) is provided with an open accommodating cavity (110), the driving mechanism (300) is at least partially arranged in the accommodating cavity (110), and the driving mechanism (300) is connected with the fork (200) through the opening of the accommodating cavity (110) and is used for driving the fork (200) to move;

the drive mechanism (300) comprises a drive device (310) and a pushing assembly (320) equal in number to the forks (200), wherein:

the pushing component (320) is arranged in the accommodating cavity (110), the pushing component (320) comprises a base plate (321) and a pushing piece (322), and the pushing piece (322) is arranged on the base plate (321); the pushing piece (322) can be in limit fit with the fork (200) at two sides of the mounting part (220) along the width direction; the driving device (310) is connected with the base plate (321) and is used for driving the pushing component (320) to move; a first buffer gap (C) is provided between the mounting portion (220) and the corresponding substrate (321).

2. The fork assembly according to claim 1, wherein the fork carriage (100) is positively engageable with the mounting portion (220) in the direction of extension of the carrier portion (210).

3. The fork assembly according to claim 2, wherein the pushing member (322) comprises a first protrusion (322 a) and a second protrusion (322 b), the first protrusion (322 a) and the second protrusion (322 b) are arranged side by side on the base plate (321), and a relief space (S1) is defined between the first protrusion (322 a) and the second protrusion (322 b);

the installation part (220) is at least partially arranged in the avoidance space (S1), and the installation part (220) is in limit fit with the corresponding first protrusion (322 a) and second protrusion (322 b).

4. The fork assembly of claim 2, wherein the pushing member (322) includes a main body portion (322 c), a first arm (322 d) and a second arm (322 e), the first arm (322 d) and the second arm (322 e) are respectively connected to opposite sides of the main body portion (322 c), and the first arm (322 d) is disposed opposite to the second arm (322 e);

the pushing piece (322) is buckled on the mounting portion (220), the pushing piece (322) is fixedly connected with the base plate (321) through the first support arm (322 d) and the second support arm (322 e), and a second buffer gap is arranged between the main body portion (322 c) and the end face, away from the base plate (321), of the mounting portion (220); the first support arm (322 d) and the second support arm (322 e) can be respectively in limit fit with the mounting part (220) at two sides of the mounting part (220) along the width direction.

5. The fork assembly according to claim 2, wherein the number of forks (200) is two, two of the forks (200) being arranged side by side on the fork carriage (100), the drive mechanism (300) being adapted to drive two of the forks (200) towards each other or away from each other;

the driving mechanism (300) further comprises a transmission assembly (330) arranged in the accommodating cavity (110), the transmission assembly (330) comprises a first sprocket (331), a second sprocket (332) and a transmission chain (333), the first sprocket (331) and the second sprocket (332) are rotatably arranged on the fork frame (100), and the transmission chain (333) is arranged on the first sprocket (331) and the second sprocket (332);

the driving device (310) is connected with the first sprocket (331), the first sprocket (331) is driven by the driving device (310) to rotate, and the transmission chain (333) is transmitted along with the rotation of the first sprocket (331); the transmission chain (333) comprises a first chain segment (333 a) and a second chain segment (333 b) which are positioned between the first chain wheel (331) and the second chain wheel (332), wherein one base plate (321) is connected with the first chain segment (333 a), and the other base plate (321) is connected with the second chain segment (333 b).

6. The fork assembly according to claim 2, further comprising a first rail (400), the first rail (400) being disposed within the receiving cavity (110), the first rail (400) extending in a direction that coincides with the direction of movement of the fork (200), the base plate (321) being slidably fitted to the first rail (400);

and/or, the fork assembly further comprises a second guide rail (500), the second guide rail (500) is arranged in the accommodating cavity (110), the extending direction of the second guide rail (500) is consistent with the moving direction of the fork (200), and the base plate (321) is in sliding fit with the second guide rail (500).

7. The fork assembly of claim 5, further comprising a first rail (400) and a second rail (500), wherein the first rail (400) and the second rail (500) are both disposed within the receiving cavity (110), wherein the first rail (400) is disposed on a side of the transmission assembly (330) proximate the first segment (333 a), and wherein the second rail (500) is disposed on a side of the transmission assembly (330) proximate the second segment (333 b);

the extending directions of the first guide rail (400) and the second guide rail (500) are consistent with the moving direction of the fork (200), and the base plate (321) is in sliding fit with the first guide rail (400) and the second guide rail (500) at the same time.

8. The fork assembly of claim 1, wherein the drive mechanism (300) includes a drive device (310) and an equal number of adapter assemblies as the forks (200), wherein:

the switching assembly comprises a base plate (321) and a fastener (F), the mounting part (220) is connected with the base plate (321) through the fastener (F), and the driving device (310) is connected with the base plate (321) and is used for driving the switching assembly to move.

9. The fork assembly according to claim 1, wherein the mounting portion (220) is provided with a first clamping groove (221) and a second clamping groove (222) which are arranged oppositely, and the extending directions of the first clamping groove (221) and the second clamping groove (222) are consistent; a third guide rail (120) and a fourth guide rail (130) which are arranged in opposite directions are arranged on the fork frame (100), and the extension directions of the third guide rail (120) and the fourth guide rail (130) are consistent;

the first clamping groove (221) can be in clamping fit with the third guide rail (120), and the first clamping groove and the third guide rail can slide relatively; the second clamping groove (222) can be in clamping fit with the fourth guide rail (130), and the second clamping groove and the fourth guide rail can slide relatively.

10. A forklift truck comprising a fork assembly according to any one of claims 1 to 9.