CN218622382U

CN218622382U - Holding fork device and loader

Info

Publication number: CN218622382U
Application number: CN202223026422.5U
Authority: CN
Inventors: 徐诗瑶; 沈洪伟; 徐百双
Original assignee: Guangxi Liugong Machinery Co Ltd
Current assignee: Guangxi Liugong Machinery Co Ltd
Priority date: 2022-11-14
Filing date: 2022-11-14
Publication date: 2023-03-14
Anticipated expiration: 2032-11-14

Abstract

The utility model relates to a loader technical field discloses an embrace fork device and loader, not only can go up and down to embracing the fork through equipment, can also go up and down for the after-poppet through lift drive unit drive fore-stock, realizes going up and down to embracing the fork subassembly. Compared with the traditional method that the fork holding assembly is driven to lift only through the working device, the unloading height is improved, the operation is fast and convenient, and the operation efficiency is higher; the structure is simple, side turning is avoided, and the reliability of the whole machine is high.

Description

Holding fork device and loader

Technical Field

The utility model relates to a loader technical field especially relates to an embrace fork device and loader.

Background

The holding fork is arranged on a working device of the loader and is mainly used for stacking operation of wood and forage, and comprises a lower fork body, two upper fork bodies and a holding fork oil cylinder for driving each upper fork body to act. The upper fork body and the lower fork body are connected through a pin shaft, and the fork is controlled to be opened and closed through the extension and contraction of a piston rod of the fork-holding oil cylinder, so that the grabbing of materials is realized.

Specifically, the piston rod of the holding fork oil cylinder is used for controlling the holding fork to open and close to grab the material, the material is unloaded from the truck, the rotating bucket oil cylinder and the movable arm oil cylinder are controlled to lift after the loader conveys the material to a stacking place, and the holding fork is controlled to open to unload the material after the working device reaches a preset unloading height.

The stacking height of the materials is mostly determined by the unloading height of the holding fork, and the unloading height of the holding fork is closely related to the parameters of the working device. In order to meet the stacking requirement, one of the current common modes is that an elongated arm is adopted to match with a holding fork to unfold and stack materials, but the unloading height always cannot meet the requirement of a user; the other mode is to apply the overlong arm, and although the lifting height of the overlong arm is higher, the influence of the tipping parameters of the whole machine and the reliability of the whole machine are considered, the material of the holding fork clamp is required not to be too heavy, and the holding diameter of the holding fork is required not to be too large, so that the operation efficiency of matching the overlong arm with the holding fork is lower.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an embrace fork device and loader can improve and embrace fork operating efficiency when satisfying the heap height requirement.

To achieve the purpose, the utility model adopts the following technical proposal:

embrace and pitch device including embracing the fork subassembly and lifting the subassembly, lifting the subassembly and including:

the front bracket is connected to the lower fork body of the holding fork assembly;

the rear support is used for connecting a working device of the loader, and the front support can be lifted relative to the rear support;

the lifting driving unit is connected with the front support through a movable end, and the fixed end of the lifting driving unit is connected with the rear support so as to drive the front support to lift relative to the rear support.

As a preferable technical solution of the above-mentioned fork holding device, the elevation driving unit includes:

the cylinder body of the lifting oil cylinder is arranged on the rear support, and a piston rod of the lifting oil cylinder is in transmission connection with the front support.

As a preferable technical solution of the above-mentioned fork holding device, the lift driving unit further includes:

the fixed pulley is rotationally connected to the rear bracket;

and one end of the pull rope is connected to a piston rod of the lifting oil cylinder, and the other end of the pull rope is connected to the front support after bypassing the fixed pulley.

As an optimal technical scheme of the fork holding device, two lifting oil cylinders are arranged, and the two lifting oil cylinders are arranged at intervals along the left and right directions of the lower fork body.

As a preferred technical solution of the above fork holding device, the front bracket is rotatably connected to the lower fork body; embrace fork subassembly includes:

and two ends of the front compensation oil cylinder are respectively and rotatably connected to the front bracket and the lower fork body.

As a preferable technical solution of the above fork holding device, the front bracket includes:

the front frame body is connected to the rear support in a sliding manner and is connected with the lifting driving unit;

the two front arms are arranged at intervals along the left and right directions of the lower fork body, and the front frame body is positioned between the two front arms; one end of each front arm is connected to the front frame body, and the other end of each front arm is rotatably connected to the lower fork body.

As an optimal technical solution of the above-mentioned embracing fork device, be equipped with mounting structure on the rear bracket for connect in with the equipment with rotating, the embracing fork device still includes:

and two ends of the rear compensation oil cylinder are respectively and rotatably connected with the rear bracket and the working device.

As an optimal technical scheme of the fork holding device, the number of the mounting structures is two, the two mounting structures are arranged at intervals along the left and right direction of the lower fork body, and the rear compensation oil cylinder is located between the two mounting structures.

As a preferred technical scheme of the fork holding device, the number of the rear compensation oil cylinders is two, and the two rear compensation oil cylinders are arranged at intervals along the left and right directions of the lower fork body.

The utility model also provides a loader, including above-mentioned arbitrary scheme embrace the fork device.

The utility model discloses beneficial effect: the utility model provides an embrace fork device and loader not only can go up and down to embracing the fork through equipment, can also go up and down for the after-poppet through lift drive unit drive fore-stock, realizes going up and down to embracing the fork subassembly. Compared with the traditional method that the fork holding assembly is driven to lift only through the working device, the unloading height is improved, the operation is fast and convenient, and the operation efficiency is higher; the structure is simple, the side turning is avoided, and the reliability of the whole machine is high.

Drawings

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

Fig. 1 is a first schematic structural diagram of a fork holding device connected to a working device according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a fork holding device connected to a working device according to an embodiment of the present invention;

fig. 3 is a first schematic structural diagram of a lifting assembly according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram ii of a lifting assembly according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature "on," "above" and "over" the second feature may include the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "right", etc. are used in an orientation or positional relationship based on that shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element 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. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to be limiting.

As shown in fig. 1 to fig. 4, the present embodiment provides a fork clasping apparatus and a loader, wherein the loader fork clasping apparatus includes a fork clasping assembly 11 and a lifting assembly 12, the lifting assembly 12 includes a front bracket 121, a rear bracket 122 and a lifting driving unit, wherein the front bracket 121 is connected to a lower fork body 111 of the fork clasping assembly 11; the rear bracket 122 is used for connecting the working device 2 of the loader, and the front bracket 121 can be lifted and lowered relative to the rear bracket 122; the movable end of the lifting driving unit is connected to the front bracket 121, and the fixed end of the lifting driving unit is connected to the rear bracket 122, so as to drive the front bracket 121 to lift relative to the rear bracket 122.

When the holding fork device provided by the embodiment is used for a loader, the holding fork can be lifted through the working device 2, and the front support 121 can be driven to lift relative to the rear support 122 through the lifting driving unit, so that the holding fork assembly 11 is lifted. Compared with the traditional method that the working device 2 only drives the fork holding assembly 11 to ascend and descend, the unloading height is improved, the operation is fast and convenient, and the operation efficiency is higher; the structure is simple, the side turning is avoided, and the reliability of the whole machine is high.

Specifically, the lifting driving unit includes a lifting cylinder 123, a cylinder body of the lifting cylinder 123 is mounted on the rear bracket 122, and a piston rod of the lifting cylinder 123 is in transmission connection with the front bracket 121. The front support 121 and the rear support 122 slide relative to each other by the lift cylinder 123, so that the front support 121 can be lifted.

Optionally, the lifting driving unit further comprises a pulling rope 126 and a fixed pulley 125, wherein the fixed pulley 125 is rotatably connected to the rear bracket 122, one end of the pulling rope 126 is connected to the piston rod of the lifting cylinder 123, and the other end of the pulling rope passes around the fixed pulley 125 and is connected to the front bracket 121. Due to the design, when the piston rod of the lifting oil cylinder 123 extends, the front bracket 121 can be lifted relative to the rear bracket 122 by changing the direction through the pull rope 126; and the moving direction is changed by the fixed pulley 125, thereby reducing the length of the entire rear bracket 122 in the telescopic direction of the piston rod of the lift cylinder 123. Illustratively, the fixed pulley 125 is a sprocket, and the pull rope 126 is a chain, and the sprocket and the chain are engaged, so that the pulling and loading capacity and the stability can be improved.

Alternatively, in order to improve the lifting stability of the front bracket 121, two lifting cylinders 123 are provided, and the two lifting cylinders 123 are spaced apart from each other in the left-right direction of the lower fork 111.

Further, the fork holding assembly 11 includes an upper fork body 112 and a fork holding cylinder in addition to the lower fork body 111, and the fork holding cylinder is used for driving the upper fork body 112 to rotate relative to the lower fork body 111, so as to realize the opening and closing of the fork holding. This is prior art in the field and will not be described in detail here.

In order to enable the operating state of the fork holding assembly 11 to meet requirements, such as state switching between material holding and discharging, the front bracket 121 is rotatably connected with the lower fork body 111; the fork holding device further comprises a front compensation oil cylinder 113, and two ends of the front compensation oil cylinder 113 are respectively connected to the front support 121 and the lower fork body 111 in a rotating mode. The rotation of the lower fork body 111 relative to the front bracket 121 can be realized through the extension and contraction of the piston of the front compensation oil cylinder 113, so that the opening and closing opening of the embracing fork assembly 11 faces downwards when unloading and embracing materials; when carrying out the material after embracing the material and transporting, the opening face of embracing fork subassembly 11 is forward, perhaps first-class towards.

Optionally, the front frame 121 comprises a front frame 1211 and two front arms 1212, wherein the front frame 1211 is slidably connected to the rear frame 122 and connected to the lifting driving unit; the two front arms 1212 are spaced apart from each other in the left-right direction of the lower fork 111, and the front frame 1211 is located between the two front arms 1212; each front arm 1212 has one end connected to the front frame 1211 and the other end rotatably connected to the lower fork 111. Due to the design, the stability of the holding fork assembly 11 during the operation of the whole holding fork device can be improved.

Illustratively, the front arm 1212 and the lower fork body 111, the front compensation cylinder 113 and the front frame 1211 are rotatably connected through a pin shaft.

Further, the rear bracket 122 is provided with a mounting structure 12221 for rotatably connecting to the working device 2, the fork holding device further includes a rear compensation cylinder 124, and two ends of the rear compensation cylinder 124 are rotatably connected to the rear bracket 122 and the working device 2, respectively. By the design, the lifting assembly 12 is wholly in a state perpendicular to the ground in the lifting process of the working device 2, and the stability of the holding fork assembly 11 is improved.

Alternatively, two mounting structures 12221 are provided, the two mounting structures 12221 are spaced apart from each other in the left-right direction of the lower fork 111, and the rear compensation cylinder 124 is located between the two mounting structures 12221. Two rear compensation oil cylinders 124 are provided, and the two rear compensation oil cylinders 124 are arranged at intervals along the left and right direction of the lower fork body 111. By the design, the stability of the lifting assembly 12 is improved in the process of lifting the lifting assembly 12 through the working device 2.

Illustratively, the rear compensation cylinder 124 and the rear bracket 122, and the rear bracket 122 and the working device 2 are rotatably connected through a pin.

In this embodiment, the rear frame 122 includes a first rear frame 1221 and a second rear frame 1222, the front frame 1211 is slidably connected to the first rear frame 1221, the lift cylinder 123 is located at a side of the first rear frame 1221 opposite to the front frame 1211, a cylinder body of the lift cylinder 123 is mounted on the first rear frame 1221, and a piston rod of the lift cylinder 123 is in transmission connection with the front frame 1211. In order to improve the stability of the lift cylinder 123, the cylinder body of the lift cylinder 123 is limited between the first rear frame body 1221 and the second rear frame body 1222, the rear frame 122 further comprises a plurality of limiting plates 1223 fixedly connected to the first rear frame body 1221 and arranged at intervals with the first rear frame body 1221, the second rear frame body 1222, the plurality of limiting plates 1223 are arranged at intervals from top to bottom, the lift cylinder 123 and the pull rope 126 are limited by the plurality of limiting plates 1223, and the stability of the lift cylinder 123 is improved.

The process of adjusting the unloading height of the loader for the fork holding operation provided by the embodiment is as follows:

and controlling the lifting oil cylinder 123 to work, wherein a piston rod of the lifting oil cylinder 123 rises at a speed V, and the embracing fork assembly 11 rises at a speed 2V.

When the lifting cylinder 123 moves to the maximum stroke position, the embracing fork assembly 11 is at the extreme position above the lifting assembly 12, and the boom cylinder 21 of the working device 2 is lifted to the maximum stroke position thereof, so that the embracing fork assembly 11 can reach the maximum unloading height.

When the piston rod of the boom cylinder 21 extends, the position of the lifting assembly 12 is adjusted by the rear compensation cylinder 124, and the lifting assembly 12 is always in a state of being vertical to the ground.

In addition, the foregoing is only the preferred embodiment of the present invention and the technical principles applied thereto. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments illustrated herein, but is capable of various obvious modifications, rearrangements and substitutions without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. Embrace fork device, including embracing fork subassembly (11) and lifting assembly (12), its characterized in that, lifting assembly (12) includes:

the front bracket (121), the front bracket (121) is connected to the lower fork body (111) of the embracing fork assembly (11);

a rear bracket (122), wherein the rear bracket (122) is used for connecting a working device (2) of the loader, and the front bracket (121) can lift relative to the rear bracket (122);

the movable end of the lifting driving unit is connected to the front support (121), and the fixed end of the lifting driving unit is connected to the rear support (122) to drive the front support (121) to lift relative to the rear support (122).

2. A fork gripping device according to claim 1, wherein the lifting drive unit comprises:

the lifting oil cylinder (123), the cylinder body of the lifting oil cylinder (123) is installed in the rear support (122), and the piston rod of the lifting oil cylinder (123) is in transmission connection with the front support (121).

3. The fork embracing device of claim 2, wherein the lift driving unit further comprises:

a fixed pulley (125), the fixed pulley (125) being rotatably connected to the rear bracket (122);

and one end of the pull rope (126) is connected to a piston rod of the lifting oil cylinder (123), and the other end of the pull rope (126) is connected to the front bracket (121) after passing around the fixed pulley (125).

4. The embracing fork device according to claim 2, wherein the number of the lifting cylinders (123) is two, and the two lifting cylinders (123) are arranged at intervals along the left-right direction of the lower fork body (111).

5. A fork-embracing device according to claim 1, wherein the front bracket (121) is rotatably connected with the lower fork body (111); the fork holding assembly (11) comprises:

and two ends of the front compensation oil cylinder (113) are respectively and rotatably connected to the front bracket (121) and the lower fork body (111).

6. A fork device as claimed in claim 5, wherein the front bracket (121) comprises:

a front frame body (1211), wherein the front frame body (1211) is connected to the rear support (122) in a sliding manner and is connected with the lifting driving unit;

two front arms (1212) spaced apart from each other in a left-right direction of the lower fork (111), the front frame body (1211) being located between the two front arms (1212); one end of each front arm (1212) is connected to the front frame body (1211), and the other end is rotatably connected to the lower fork body (111).

7. A fork holding device according to any one of claims 1 to 6, wherein the rear bracket (122) is provided with a mounting structure (12221) for rotatably connecting to the working device (2), the fork holding device further comprising:

and two ends of the rear compensation oil cylinder (124) are respectively in rotary connection with the rear bracket (122) and the working device (2).

8. The fork embracing device according to claim 7, wherein the number of the mounting structures (12221) is two, the two mounting structures (12221) are arranged at intervals along the left-right direction of the lower fork body (111), and the rear compensation cylinder (124) is positioned between the two mounting structures (12221).

9. The embracing fork device according to claim 8, wherein the number of the rear compensation cylinders (124) is two, and the two rear compensation cylinders (124) are arranged at intervals in the left-right direction of the lower fork body (111).

10. A loader comprising a fork gripping device as claimed in any one of claims 1 to 9.