CN113184756A - Pneumatic crawler-type rotatable forklift and method - Google Patents

Pneumatic crawler-type rotatable forklift and method Download PDF

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Publication number
CN113184756A
CN113184756A CN202110657355.8A CN202110657355A CN113184756A CN 113184756 A CN113184756 A CN 113184756A CN 202110657355 A CN202110657355 A CN 202110657355A CN 113184756 A CN113184756 A CN 113184756A
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CN
China
Prior art keywords
forklift
assembly
oil cylinder
fork
gantry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
CN202110657355.8A
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Chinese (zh)
Inventor
石晓军
井兴虎
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Shaanxi Jinshi Turing Electromechanical Equipment Co ltd
Shaanxi Qinzhiji Intelligent Technology Co ltd
Original Assignee
Shaanxi Jinshi Turing Electromechanical Equipment Co ltd
Shaanxi Qinzhiji Intelligent Technology Co ltd
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Application filed by Shaanxi Jinshi Turing Electromechanical Equipment Co ltd, Shaanxi Qinzhiji Intelligent Technology Co ltd filed Critical Shaanxi Jinshi Turing Electromechanical Equipment Co ltd
Priority to CN202110657355.8A priority Critical patent/CN113184756A/en
Publication of CN113184756A publication Critical patent/CN113184756A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/08—Masts; Guides; Chains
    • B66F9/082—Masts; Guides; Chains inclinable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/12—Platforms; Forks; Other load supporting or gripping members
    • B66F9/125—Platforms; Forks; Other load supporting or gripping members rotatable about a longitudinal axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F9/00—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes
    • B66F9/06—Devices for lifting or lowering bulky or heavy goods for loading or unloading purposes movable, with their loads, on wheels or the like, e.g. fork-lift trucks
    • B66F9/075—Constructional features or details
    • B66F9/20—Means for actuating or controlling masts, platforms, or forks
    • B66F9/22—Hydraulic devices or systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
    • F15B21/04—Special measures taken in connection with the properties of the fluid
    • F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering

Abstract

The invention discloses a pneumatic crawler-type rotatable forklift and a method, wherein the forklift comprises a walking crawler assembly and a forklift gantry assembly; the rotary assembly is arranged on the walking crawler assembly, and the rotary platform is arranged on the rotary assembly; a fork truck gantry pushing oil cylinder is mounted at the front end of the rotary platform, and the inclined oil cylinder, the hydraulic oil tank assembly, the gear oil pump and the pneumatic motor are mounted on the rotary platform; the lower part of the forklift gantry assembly is connected with a rotating shaft of a pushing oil cylinder of the forklift gantry through a pin shaft, and the middle part of the forklift gantry assembly is connected with an inclined oil cylinder; the output shaft of the pneumatic motor is connected with the input shaft of the gear oil pump, and the hydraulic oil tank assembly is connected to the forklift gantry assembly, the tilting oil cylinder, the forklift gantry pushing oil cylinder and the rotating assembly through the gear oil pump. The pneumatic crawler-type forklift adopts compressed air as a power source, is environment-friendly, energy-saving, explosion-proof and reliable, and the air-pressing pipelines at the sides of the underground driving tunnel and the transportation tunnel extend along with the driving development project, so that the compressed air is convenient to use.

Description

Pneumatic crawler-type rotatable forklift and method
Technical Field
The invention belongs to the field of auxiliary transport vehicles for mines, and particularly relates to a pneumatic crawler-type rotatable forklift and a method.
Background
The existing modern mine coal mine auxiliary transport vehicle adopts an explosion-proof diesel rubber-tired vehicle, has the problems of high oil consumption, environmental pollution caused by diesel combustion and exhaust, and even carbon monoxide overproof safety, and has larger volume, when equipment such as a belt conveyor and the like runs in a roadway, the explosion-proof diesel vehicle transports materials required by a tunneling working face and a recovery working face to an underground working roadway, and cannot directly transport the materials to the working face, and usually at least more than 200 meters of distance is remained to manually carry support materials such as anchor rods, anchoring agents, pipelines, trays, anchor cables and the like required by the working face to an operation place, so that the working efficiency is low, the labor intensity is high, personnel injuries are easily caused, and the material transportation is one of key influence factors of the support speed and the tunneling footage.
The existing underground pipeline installation engineering adopts an explosion-proof diesel rubber-tyred vehicle to transport a pipeline to an installation place, aligns the pipeline by using a crow bar, manually connects bolts, then fixes and lifts two ends of the pipeline by using a chain block, and before the chain block is used, an anchor rod needs to be constructed and suspended at the top of a roadway at the position of the installation pipeline, so that the process is complex, the labor intensity is high, the working efficiency is low, and the safety problem of personnel is involved.
When a heading machine, a scraper conveyor and a rubber belt conveyor on a heading face have faults, main equipment accessories are disassembled and then need to be transported to lift a shaft for maintenance, or when the heading face is replaced, the scraper conveyor and the rubber belt conveyor need to be disassembled and transported to a new heading face, at present, a manual chain block pulling mode is mainly adopted to pull out two hundred meters of the heading face, then an explosion-proof loader is used for loading, the labor intensity is high, the working efficiency is very low, and the safety problem of personnel is involved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to solve the problems of high labor intensity, low working efficiency and influence on personnel safety in the existing working face material equipment transportation, pipeline installation and the like, and provides the pneumatic crawler type rotatable forklift and the method with simple structure and high reliability.
In order to achieve the purpose, the invention is realized by the following technical scheme:
a pneumatic crawler type rotatable forklift comprises a walking crawler assembly and a forklift gantry assembly;
the front end of the walking crawler assembly is provided with a portal support platform; the rotary assembly is arranged on the walking crawler assembly, and the rotary platform is arranged on the rotary assembly; a fork truck gantry pushing oil cylinder is mounted at the front end of the rotary platform, and the inclined oil cylinder, the hydraulic oil tank assembly, the gear oil pump and the pneumatic motor are mounted on the rotary platform;
the lower part of the forklift portal assembly is connected with a rotating shaft of a pushing oil cylinder of the forklift portal through a pin shaft, the middle part of the forklift portal assembly is connected with an inclined oil cylinder, and the bottom of the forklift portal assembly is provided with universal wheels;
the output shaft of the pneumatic motor is connected with the input shaft of the gear oil pump, and the hydraulic oil tank assembly is connected to the forklift gantry assembly, the tilting oil cylinder, the forklift gantry pushing oil cylinder and the rotating assembly through the gear oil pump.
Further, the walking crawler assembly comprises a crawler and a walking frame; the gantry supporting platform and the rotary assembly are both arranged on the walking frame; the walking frame is provided with a driving motor, a speed reducer and a driving wheel, the driving motor is connected with the driving wheel after being reduced by the speed reducer, and the crawler belt is arranged on the driving wheel; the two ends of the walking frame are respectively provided with a left guide wheel, a right guide wheel, a left tension device and a right tension device; the bottom end of the walking frame is provided with a supporting wheel, and the upper part of the walking frame is provided with a supporting chain wheel.
Further, the rotary assembly comprises a rotary motor, a rotary speed reducer and a rotary support; the rotary platform is installed on the walking frame through a rotary support, the rotary motor is connected with the rotary support through a rotary speed reducer, and the gear oil pump is connected with the rotary motor.
Further, the forklift mast assembly comprises a fork head, a lifting oil cylinder, a fork lifting oil cylinder, a forklift mast assembly and a mast; the fork head is provided with a chain ring hole;
the fork head is hung on a forklift portal frame assembly, and the forklift portal frame assembly is sleeved in the portal frame through second rollers fixed at two ends;
a piston rod of the lifting oil cylinder is fixed on a lifting oil cylinder cross beam, and two ends of the lifting oil cylinder cross beam are sleeved in the gantry through first rollers; a support connecting plate is arranged at the bottom end of the portal frame, and a cylinder barrel base of the lifting oil cylinder is fixed on the support connecting plate;
the cylinder barrel of the fork lifting oil cylinder is fixed on a beam of the lifting oil cylinder, and a piston rod of the fork lifting oil cylinder is fixed with the forklift gantry assembly.
Further, the portal top is provided with the connecting plate.
Further, the hydraulic oil tank assembly comprises an oil suction filter, an oil return filter and an oil tank body; the oil suction filter is arranged on the oil inlet side of the gear oil pump, and the oil return filter is arranged on the oil return side of the oil tank body.
Further, the output shaft of the pneumatic motor is connected with the input shaft of the gear oil pump by adopting a flat key or a spline.
Furthermore, a cast iron shield is used as a rotation protection device at the joint of the output shaft of the pneumatic motor and the input shaft of the gear oil pump.
Further, a silencer is installed at an exhaust port of the air motor.
The embodiment of the invention provides another technical scheme that:
a working method of an air-actuated crawler-type rotatable forklift comprises the following steps:
if long material transportation is carried out, the steps are as follows:
s11, rotating the rotary platform by an angle of 90 degrees, and forming an angle of 90 degrees between the forklift gantry and the center line of the vehicle;
s12, extending the fork frame lifting oil cylinder, retracting the lifting oil cylinder at the same time, and enabling the forklift gantry assembly to land; if the long material is loaded and unloaded from other vehicles, the lifting oil cylinder or the fork lifting oil cylinder acts to ensure that the fork head and the long material are aligned correctly;
s13, the forklift moves forwards, and a fork head fork takes long materials;
s14, the tilt oil cylinder contracts, and the forklift gantry assembly tilts backwards;
s15, fixing one ends of two chain rings with proper strength by penetrating a horseshoe ring through chain ring holes reserved on a fork head, and fixing the other ends of the chain rings on a cross beam at the top end of the forklift portal assembly;
s16, retracting the fork lifting oil cylinder to lift the long material to enable the long material to be parallel to the vehicle, and enabling the vehicle to run;
s17, after the vehicle runs in place, extending the fork frame lifting oil cylinder, retracting the lifting oil cylinder, and enabling the forklift gantry assembly to land;
s18, disassembling the chain ring;
s19, extending the inclined oil cylinder and landing the long timber;
if the box goods or equipment are transported, the steps are as follows:
s21, stretching out the fork truck gantry pushing oil cylinder;
s22, extending out of the fork frame lifting oil cylinder, extending out of the tilting oil cylinder, and enabling the fork frame gantry assembly to land;
s23, forking box goods or equipment by using a fork head;
s24, retracting the inclined oil cylinder and retracting the fork lifting oil cylinder;
s25, retracting the fork truck gantry pushing cylinder, extending the inclined cylinder, and enabling the gantry and goods or equipment to fall on the front supporting platform 3 of the fork truck together;
s26, transporting goods or equipment to a proper position by the operation of a forklift;
s27, contracting the inclined oil cylinder and extending out of the fork truck gantry pushing oil cylinder;
and S28, extending the fork frame to lift the oil cylinder, and enabling the goods or equipment to land.
Compared with the prior art, the technical scheme of the invention has the following advantages:
1) the pneumatic crawler-type forklift for the mine provided by the embodiment of the invention adopts compressed air as a power source, is environment-friendly, energy-saving and reliable in explosion prevention, and the pneumatic pipeline at the side part of the underground driving tunnel and the transportation tunnel extends along with the driving development project, so that the compressed air is convenient to use.
2) The pneumatic crawler-type rotatable forklift provided by the embodiment of the invention adopts the crawler-type traveling mechanism, is hydraulically driven, has strong climbing capability and reliable braking, and is suitable for underground excavation of a roadway and a severe road surface.
3) The pneumatic crawler-type rotatable forklift provided by the embodiment of the invention adopts the forklift gantry, not only has the auxiliary transportation function of materials and equipment, but also has the loading and unloading function of the material equipment, realizes the tidy stacking of the material equipment, improves the safety quality standardization level of underground tunneling operation, greatly improves the working efficiency of underground personnel, reduces the labor intensity and ensures the personal safety.
4) According to the pneumatic crawler-type rotatable forklift provided by the embodiment of the invention, the forklift gantry is pushed to move to the front end supporting platform of the vehicle by adopting the forklift gantry pushing oil cylinder in the transportation process, the fork lifting oil cylinder and the lifting oil cylinder do not bear loads, the center distance between the loads and the gravity center of the vehicle is shortened when long materials are transported, and the energy efficiency of a hydraulic system is greatly improved.
5) The pneumatic crawler-type rotatable forklift provided by the embodiment of the invention adopts the rotary assembly and the rotary platform, the turning radius is small, when long materials are transported, the forklift gantry can rotate to the two sides of the forklift, the long materials are parallel to vehicles, and the pneumatic crawler-type rotatable forklift is suitable for underground narrow roadway transportation.
6) According to the forklift gantry assembly provided by the embodiment of the invention, the lifting oil cylinder adopts a two-stage or three-stage oil cylinder, is arranged in the gantry to slide and lift, so that the effective lifting height is exerted to the maximum value, the lifting capacity of the forklift is improved, the design efficiency is high, and the forklift gantry assembly is simple and reliable and is suitable for being used in underground humid and dust environments.
7) According to the forklift mast assembly provided by the embodiment of the invention, the fork head is provided with the chain ring connecting hole, so that long materials can be fastened in the transportation process.
8) According to the forklift mast assembly provided by the embodiment of the invention, the fork lifting oil cylinder is adopted, so that the lifting height of goods can be further improved, when a vehicle rotates or the forklift is used for transportation, only the fork lifting oil cylinder needs to be contracted, and when the forklift is used for lifting an installation pipeline, the fork lifting oil cylinder and the lifting oil cylinder simultaneously act, so that the service life of the lifting oil cylinder is prolonged.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of an air-tracked rotatable forklift of the present invention;
FIG. 2 is a schematic view of an air-tracked rotatable forklift mast assembly of the present invention;
wherein: 1, a fork head; 2, a forklift gantry assembly; 3, a portal support platform; 4, universal wheels; 5 pushing the limiting block; 6, a pin shaft; 7, inclining the oil cylinder; 8, pushing an oil cylinder of the forklift gantry; 9 an operation table; 10 overhead guard; 11 a driver seat; 12 a hydraulic tank assembly; 13 a gear oil pump; 14 a pneumatic motor; 15 fixing the bolt; 16 a rotary platform; 17 a swivel assembly; 18 torr sprocket wheel; 19 thrust wheels; 20 driving wheels; 21 lifting the oil cylinder; 22 fork lift cylinders; 23, rollers; 24 lifting the cylinder beam; 25 forks; 26 rollers; 27 supporting the connecting plate; 28 connecting plates; 29 a portal; 30 tracks.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
As shown in fig. 1, an embodiment of the present invention provides a pneumatic crawler type rotatable forklift, comprising a walking crawler assembly and a forklift gantry assembly 2; the front end of the walking crawler assembly is provided with a portal support platform 3; the rotary assembly 17 is arranged on the walking crawler assembly, and the rotary platform 16 is arranged on the rotary assembly 17; the front end of the rotary platform 16 is provided with a forklift portal pushing cylinder 8, and in the preferred embodiment of the invention, a pushing limiting block 5 is further arranged in front of the forklift portal pushing cylinder 8 and used for limiting the forklift portal pushing cylinder 8. The tilt cylinder 7, the hydraulic oil tank assembly 12, the gear oil pump 13 and the pneumatic motor 14 are all installed on a rotary platform 16, an operating platform 9 is located at the front part of the rotary platform 16, a driver seat 11 is arranged behind the operating platform 9, and a driver head protection device 10 is arranged on the driver seat 11.
The hydraulic oil tank assembly 12 comprises an air filter, a liquid level meter, an oil absorption filter, an oil return filter and an oil tank body; the oil suction filter is installed on the oil inlet side of the gear oil pump 13, and the oil return filter is installed on the oil return side of the oil tank body. The air filter and the liquid level meter are arranged on the oil tank body.
The lower part of the forklift mast assembly 2 is connected with a forklift mast pushing oil cylinder 8 through a pin shaft 6 in a rotating mode, the middle part of the forklift mast assembly 2 is connected with an inclined oil cylinder 7, two universal wheels 4 are installed at the bottom of the forklift mast assembly 2, and the forklift mast 29 can move flexibly in the action process of the forklift mast pushing oil cylinder 8 or the rotation process of the rotary platform 16.
The pneumatic motor 14 is fixed on a rotary platform 16 through a fixing bolt 15, an output shaft of the pneumatic motor 14 is connected with an input shaft of the gear oil pump 13 by adopting a flat key or a spline, a cast iron shield is used as a rotary protection device at the connection position of the output shaft of the pneumatic motor 14 and the input shaft of the gear oil pump 13, and a silencer is arranged at an exhaust port of the pneumatic motor 14; the hydraulic oil tank assembly 12 is connected to the forklift mast assembly 2, the tilting oil cylinder 7, the forklift mast push oil cylinder 8 and the rotating assembly 17 through a gear oil pump 13. The operation table 9 comprises a support frame and a multi-way reversing valve and is used for switching oil paths of the gear oil pump 13 for supplying oil to each motor and each oil cylinder.
The walking crawler assembly comprises a crawler 30 and a walking frame; the gantry supporting platform 3 and the rotary assembly 17 are both arranged on the walking frame; the walking frame is provided with a driving motor, a speed reducer and a driving wheel 20, the driving motor is connected with the driving wheel 20 after being reduced by the speed reducer, and the crawler 30 is arranged on the driving wheel 20; the two ends of the walking frame are respectively provided with a left guide wheel, a right guide wheel, a left tension device and a right tension device; the bottom end of the walking frame is provided with a supporting wheel 19, and the upper part is provided with a supporting chain wheel 18.
The rotary assembly 17 comprises a rotary motor, a rotary speed reducer and a rotary support; the rotary platform 16 is arranged on the walking frame through a rotary support, the rotary motor is connected with the rotary support through a rotary speed reducer, and the gear oil pump 13 is connected with the rotary motor.
The forklift mast assembly 2 comprises a fork head 1, a lifting oil cylinder 21, a fork frame lifting oil cylinder 22, a forklift mast assembly 25 and a mast 29; a chain ring hole is arranged on the fork head 1; the fork head 1 is hung on a forklift gantry assembly 25, and the forklift gantry assembly 25 is sleeved in a gantry 29 through second rollers 26 fixed at two ends and can slide up and down along the gantry 29; a piston rod of the lifting oil cylinder 21 is fixed on a lifting oil cylinder cross beam 24, two ends of the lifting oil cylinder cross beam 24 are sleeved in the door frame 29 through first rollers 23, and the lifting oil cylinder 21 slides up and down along the door frame 29 in the telescopic operation process; the bottom end of the portal 29 is provided with a support connecting plate 27, and the cylinder barrel base of the lifting oil cylinder 21 is fixed on the support connecting plate 27; a cylinder barrel of the fork frame lifting cylinder 22 is fixed on a lifting cylinder cross beam 24, and a piston rod of the fork frame lifting cylinder 22 is fixed with a forklift gantry assembly 25; the top end of the gantry 29 is provided with a connecting plate 28, and the connecting plate 28 also serves as a limiting device for the lift cylinder beam 24.
In the preferred embodiment of the invention, the height of the cylinder barrel of the lifting oil cylinder 21 is nearly one half of the height of the portal frame; or the lifting oil cylinder 21 adopts a three-stage oil cylinder, and the height of the cylinder barrel of the lifting oil cylinder 21 is nearly one third of the height of the portal frame;
the invention also provides a working method of the pneumatic crawler-type rotatable forklift, which comprises the following steps:
if long material transportation is carried out, the steps are as follows:
the method comprises the following steps: the rotary platform 16 rotates by an angle of 90 degrees, and the forklift gantry 29 forms an angle of 90 degrees with the center line of the vehicle;
step two: extending the fork frame lifting oil cylinder 22, retracting the lifting oil cylinder 21 at the same time, and enabling the forklift gantry assembly 2 to land; if the long material is loaded and unloaded from other vehicles, the lifting oil cylinder 21 or the fork lifting oil cylinder 22 acts to ensure that the fork head 1 is aligned with the long material correctly;
step three: the forklift moves the fork head 1 forward to fork the long material;
step four: the tilting oil cylinder 7 contracts, and the forklift gantry assembly 2 slightly tilts backwards;
step five: one ends of two chain rings with proper strength are fixed by a horseshoe ring penetrating through a chain ring hole reserved on the fork head 1, and the other ends of the chain rings are fixed on a beam at the top end of the forklift gantry assembly 25;
step six: the fork frame is contracted to lift the oil cylinder 22 to lift the long material;
step seven: the lifting oil cylinder 21 is extended out to further lift the long material, and if the lifting height meets the requirement, the step can be omitted;
step eight: the long material is parallel to the vehicle, and the vehicle runs;
step nine: after the vehicle runs in place, the fork frame lifting oil cylinder 22 extends out, the lifting oil cylinder 21 contracts, and the forklift gantry assembly 2 lands;
step ten: disassembling the chain ring;
step eleven: the inclined oil cylinder 7 extends out, and the long material falls to the ground;
step twelve: the fork lift cylinder 22 is retracted and the rotary platform 16 is rotated in the reverse direction through an angle of 90 degrees, and the forklift returns to the initial state.
If the box goods or equipment are transported, the steps are as follows:
the method comprises the following steps: extending out of a fork truck gantry pushing cylinder 8;
step two: the fork extends out of the fork lifting oil cylinder 22, extends out of the tilting oil cylinder 7, and falls to the ground;
step three: a fork head 1 is used for forking box goods or equipment;
step four: a contraction tilt cylinder 7, a contraction fork lift cylinder 22;
step five: retracting the fork truck gantry pushing cylinder 8, extending the tilting cylinder 7, and dropping the gantry 29 together with the goods or equipment onto the fork truck front support platform 3;
step six: the forklift is operated to transport goods or equipment in place;
step seven: contracting the inclined oil cylinder 7 and extending out of a fork truck portal pushing oil cylinder 8;
step eight: the fork-extending lift cylinder 22, the goods or equipment landing;
step nine: the fork lifting cylinder 22 is contracted, the fork gantry pushing cylinder 8 is contracted, and the fork returns to the initial state.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims (10)

1. A pneumatic crawler type rotatable forklift is characterized by comprising a walking crawler assembly and a forklift gantry assembly (2);
the front end of the walking crawler assembly is provided with a portal support platform (3); the rotary assembly (17) is arranged on the walking crawler assembly, and the rotary platform (16) is arranged on the rotary assembly (17); a fork truck gantry pushing oil cylinder (8) is mounted at the front end of the rotary platform (16), and the inclined oil cylinder (7), the hydraulic oil tank assembly (12), the gear oil pump (13) and the air motor (14) are mounted on the rotary platform (16);
the lower part of the forklift mast assembly (2) is connected with a rotating shaft of a forklift mast pushing oil cylinder (8) through a pin shaft (6), the middle part of the forklift mast assembly (2) is connected with an inclined oil cylinder (7), and the bottom of the forklift mast assembly (2) is provided with a universal wheel (4);
an output shaft of the pneumatic motor (14) is connected with an input shaft of a gear oil pump (13), and the hydraulic oil tank assembly (12) is connected to the forklift mast assembly (2), the inclined oil cylinder (7), the forklift mast pushing oil cylinder (8) and the rotating assembly (17) through the gear oil pump (13).
2. An air-operated tracked rotatable forklift according to claim 1, wherein the walking track assembly comprises tracks (30) and a walking frame; the gantry supporting platform (3) and the rotary assembly (17) are both arranged on the walking frame; the walking frame is provided with a driving motor, a speed reducer and a driving wheel (20), the driving motor is connected with the driving wheel (20) after being reduced by the speed reducer, and the crawler belt (30) is arranged on the driving wheel (20); the two ends of the walking frame are respectively provided with a left guide wheel, a right guide wheel, a left tension device and a right tension device; the bottom end of the walking frame is provided with a supporting wheel (19), and the upper part is provided with a supporting chain wheel (18).
3. An airtrack-type rotatable forklift as claimed in claim 2, wherein the slewing assembly (17) comprises a slewing motor, a slewing reducer and a slewing bearing; the rotary platform (16) is arranged on the walking frame through a rotary support, the rotary motor is connected with the rotary support through a rotary speed reducer, and the gear oil pump (13) is connected with the rotary motor.
4. An air-actuated tracked rotatable forklift according to claim 2, wherein the forklift mast assembly (2) comprises a fork head (1), a lift cylinder (21), a fork lift cylinder (22), a forklift mast assembly (25) and a mast (29); a chain ring hole is arranged on the fork head (1);
the fork head (1) is hung on a forklift portal assembly (25), and the forklift portal assembly (25) is sleeved in a portal (29) through second rollers (26) fixed at two ends;
a piston rod of the lifting oil cylinder (21) is fixed on a lifting oil cylinder cross beam (24), and two ends of the lifting oil cylinder cross beam (24) are sleeved in the gantry (29) through first rollers (23); a support connecting plate (27) is arranged at the bottom end of the portal (29), and a cylinder barrel base of the lifting oil cylinder (21) is fixed on the support connecting plate (27);
the cylinder barrel of the fork frame lifting oil cylinder (22) is fixed on a lifting oil cylinder cross beam (24), and a piston rod of the fork frame lifting oil cylinder (22) is fixed with a forklift gantry assembly (25).
5. An airtrack-type rotatable forklift as claimed in claim 4, characterised in that the mast (29) is provided at its top end with a connection plate (28).
6. An air-actuated tracked rotatable forklift according to claim 1, wherein the hydraulic tank assembly (12) comprises an oil suction filter, an oil return filter and a tank body; the oil suction filter is arranged on the oil inlet side of the gear oil pump (13), and the oil return filter is arranged on the oil return side of the oil tank body.
7. An airtracked rotatable forklift according to claim 1, wherein the output shaft of the air motor (14) is splined to the input shaft of the gear oil pump (13).
8. An air-operated tracked rotatable forklift according to claim 1, wherein the coupling of the output shaft of the air motor (14) and the input shaft of the gear oil pump (13) uses a cast iron shield as a rotation guard.
9. An air-operated tracked rotatable forklift according to claim 1, wherein the air discharge of the air motor (14) is fitted with a muffler.
10. A working method of an air-actuated crawler-type rotatable forklift is characterized by comprising the following steps:
if long material transportation is carried out, the steps are as follows:
s11, rotating the rotary platform (16) by an angle of 90 degrees, and forming an angle of 90 degrees between the forklift gantry (29) and the center line of the vehicle;
s12, extending the fork lifting oil cylinder (22), retracting the lifting oil cylinder (21) and enabling the forklift gantry assembly (2) to land; if the long material is loaded and unloaded from other vehicles, the lifting oil cylinder (21) or the fork lifting oil cylinder (22) acts to ensure that the fork head (1) is correctly aligned with the long material;
s13, the forklift moves forwards, and the fork head (1) forks long materials;
s14, the tilting oil cylinder (7) contracts, and the forklift mast assembly (2) tilts backwards;
s15, fixing one ends of two chain links with proper strength by using horseshoe rings to penetrate through chain ring holes reserved on the fork head (1), and fixing the other ends of the chain links on a cross beam at the top end of the forklift gantry assembly (25);
s16, retracting the fork lifting oil cylinder (22) to lift the long material to enable the long material to be parallel to the vehicle, and enabling the vehicle to run;
s17, after the vehicle runs in place, extending out of the fork frame lifting oil cylinder (22), retracting the lifting oil cylinder (21) at the same time, and enabling the forklift mast assembly (2) to land;
s18, disassembling the chain ring;
s19, extending the inclined oil cylinder (7) and enabling the long timber to land;
if the box goods or equipment are transported, the steps are as follows:
s21, extending out of a fork truck gantry pushing cylinder (8);
s22, extending out of the fork frame lifting oil cylinder (22), extending out of the tilting oil cylinder (7), and landing the fork frame gantry assembly (2);
s23, forking box goods or equipment by using the fork head (1);
s24, a contraction tilting cylinder (7) and a contraction fork lifting cylinder (22);
s25, contracting the fork truck gantry pushing cylinder (8), extending the inclined cylinder (7), and enabling the gantry (29) and goods or equipment to fall on the fork truck front supporting platform 3;
s26, transporting goods or equipment to a proper position by the operation of a forklift;
s27, contracting the inclined oil cylinder (7) and extending out of a fork truck gantry pushing oil cylinder (8);
s28, extending the fork lifting oil cylinder (22), and enabling the goods or equipment to land.
CN202110657355.8A 2021-06-11 2021-06-11 Pneumatic crawler-type rotatable forklift and method Withdrawn CN113184756A (en)

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CN202110657355.8A CN113184756A (en) 2021-06-11 2021-06-11 Pneumatic crawler-type rotatable forklift and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110657355.8A CN113184756A (en) 2021-06-11 2021-06-11 Pneumatic crawler-type rotatable forklift and method

Publications (1)

Publication Number Publication Date
CN113184756A true CN113184756A (en) 2021-07-30

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Country Link
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