CN105253820A - Explosionproof internal-combustion forklift truck - Google Patents
Explosionproof internal-combustion forklift truck Download PDFInfo
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- CN105253820A CN105253820A CN201510847437.3A CN201510847437A CN105253820A CN 105253820 A CN105253820 A CN 105253820A CN 201510847437 A CN201510847437 A CN 201510847437A CN 105253820 A CN105253820 A CN 105253820A
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Abstract
The invention discloses an explosionproof internal-combustion forklift truck. The forklift truck comprises an operation and brake system, a dynamical system, a transmission system, an electrical system, an air intake and exhaust system, a heat exchange system and a lifting system, wherein the lifting system is fixedly connected with a truck frame of the explosionproof internal-combustion forklift truck to be used for lifting heavy cargoes; the lifting system comprises forks, a bracket and a hydraulic device; the hydraulic device comprises two stages of hydraulic cylinder assemblies arranged in the front-rear direction; each stage of hydraulic cylinder assemblies comprises a left hydraulic cylinder set and a right hydraulic cylinder set, which are respectively arranged on two sides of the bracket; a flow splitting and baffling structure is arranged at the bottom of an oil cylinder of one of the two hydraulic cylinder sets, and comprises a movable part and a fixed part, which cooperate with each other; the movable part is provided with oil ports; the fixed part is provided with flow baffling walls; the movable part is positioned at the bottom of the movement stroke of a piston rod in the oil cylinder; the piston rod can push the movable part during the movement stroke, so that the flow baffling walls can shield the oil ports. The explosionproof internal-combustion forklift truck disclosed by the invention can effectively solve the technical problems that a lifting system of a conventional internal-combustion forklift truck is liable to shake during working, and the like.
Description
Technical field
The present invention relates to vehicle arrangement technical field, more particularly, relate to a kind of explosion-proof diesel fork lift truck.
Background technology
At present, Working vehicle that can be explosion-proof especially explosion proof forklift can be widely used in the place containing explosive mixture such as the industrial sectors such as oil, chemical industry, pharmacy, light textile, military project, paint, pigment, coal and harbour, railway, goods yard, warehouse, carry out fork dress, lifting, transport operation, be specially adapted to narrow cave depot, workshop, harbour, tunnel etc. and require higher place handling and stacking operation to mobility performance, its field of application widely.
But at home in explosion proof forklift the development of explosion-proof battery counterbalanced lift truck very fast, but the research for explosion-proof engine balance forklift is domestic still belongs to blank, domestic still without the explosion-proof engine balance forklift of independent research at present, in especially explosion-proof internal combustion industrial vehicle, the core component such as explosion-proof combustion engine still belongs to blank; Explosion-proof engine balance forklift take combustion engine as power, and its power is powerful, compares explosion-proof battery counterbalanced lift truck applied widely, and running velocity is large, and can realize operation in 24 hours, and cost is lower.
Contriver finds that existing explosion-proof diesel fork lift truck technology more or less all exists certain safety problem, under the restriction of suitable productive costs, there is open defect in the explosion-proof performance of diesel fork lift truck, naked light issuable in car and extraneous inflammable and explosive environment can not leave by blast resistance construction completely.
In addition, contriver is also noted that in the work of the tackling system of fork truck, often there will be such problem, in the process that weight declines by fork truck, when pallet fork is about to touch the end, pallet fork slows down not in time, under the inertia of weight drives, the tackling system of fork truck easily and ground there is frictional impact, produce larger vibrations, this characteristic easily produces spark and vibrations, both the comfort level of driving had been reduced, simultaneously because the reason of vibrations easily causes device damage, overall service life shortens, simultaneously owing to easily producing collision spark, very large challenge be also result in the explosion-proof performance of fork truck.
In sum, how effectively solving the technical matters such as easy vibrations in the tackling system work of existing diesel fork lift truck, is current those skilled in the art's urgent problem.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of explosion-proof diesel fork lift truck, the structure design of this explosion-proof diesel fork lift truck can solve the technical matters such as easy vibrations in the tackling system work of existing diesel fork lift truck effectively.
In order to achieve the above object, the invention provides following technical scheme:
A kind of explosion-proof diesel fork lift truck, comprising:
Operation and brake system, power system, driving system, electric system, air inlet and exhaust system, heat exchange series are unified tackling system, described tackling system is fixedly connected with for operating weight with the vehicle frame of described explosion-proof diesel fork lift truck, comprises pallet fork, support and hydraulic efficiency gear;
The two-stage hydraulic pressure cylinder assembly arranged before and after described hydraulic efficiency gear comprises, every grade of described hydraulic pressure cylinder assembly includes the left hydraulic cylinder group and right hydraulic actuating cylinder group that are arranged at described support both sides respectively, one of them the bottom of oil cylinder part of two described hydraulic actuating cylinder groups is provided with shunting reducing-flow structure, described shunting reducing-flow structure comprises the movable part and fixed part that cooperatively interact, described movable part and described fixed part are respectively arranged with hydraulic fluid port and choked flow wall, described moving part is in the bottom position of described in-oil cylinder piston rod movement stroke, described piston rod can promote described movable part in its movement travel, described choked flow wall is made to block described hydraulic fluid port.
Preferably, in above-mentioned explosion-proof diesel fork lift truck, described movable part comprises piston valve core, and described piston valve core diverse location is along its length provided with described hydraulic fluid port, and described movable part also comprises the spring installation between described piston valve core and described oil cylinder.
Preferably, in above-mentioned explosion-proof diesel fork lift truck, described fixed part is specially the tube-in-tube structure being sheathed on described piston valve core periphery, and the sidewall of described tube-in-tube structure is provided with the opening corresponding with described hydraulic fluid port position, slidably fits in the periphery of described tube-in-tube structure inwall and described piston valve core.
Preferably, in above-mentioned explosion-proof diesel fork lift truck, one end of described piston valve core and described plunger rod contacts is provided with addendum cone structure, and described piston rod correspondence position is provided with the cone groove with described addendum cone structure male-female engagement.
Preferably, in above-mentioned explosion-proof diesel fork lift truck, the overhead guard of described explosion-proof diesel fork lift truck comprises the front retaining frame of integral structure, rear retaining frame and upper frame, and described overhead guard is installed on the vehicle frame header board of described explosion-proof diesel fork lift truck.
Preferably, in above-mentioned explosion-proof diesel fork lift truck, described air inlet and exhaust system comprise extinguishes Mars in tail gas and the exhaust resistance flame device reducing exhaust temperature, and described exhaust resistance flame device is communicated with the exhaust emissions pipeline of described air inlet and exhaust system.
Preferably, in above-mentioned explosion-proof diesel fork lift truck, described exhaust resistance flame device comprises back-fire relief chamber shell, and shell inside in described back-fire relief chamber is provided with the fire-proof plate of isolating Mars from tail gas and the trellis work passed through for tail gas.
Preferably, in above-mentioned explosion-proof diesel fork lift truck, the admission line in described air inlet and exhaust system has connected gas and dust grade filters and air inlet flame trap successively, the back-fire relief air door that described air inlet flame trap comprises closed cavity and arranges in the inner.
Preferably, in above-mentioned explosion-proof diesel fork lift truck, described heat-exchange system comprises:
Be arranged at the cooling line of described exhaust resistance flame device periphery;
The air inlet of driving engine is carried out to the preheating device of preheating, described preheating device comprises the explosion-proof heating plug being installed on engine interior; Described heat-exchange system also comprises the radiator fan to described refrigerant fluid pipeline cooling, and the concrete surface of flabellum of described radiator fan scribbles the static conductive plastics flabellum of static conductive coating.
Preferably; in above-mentioned explosion-proof diesel fork lift truck; described explosion proof forklift also comprises detection and protection system; described detection and protection system comprise detecting sensor, warning device and alarm response device; described detecting sensor comprises the temperature sensor being arranged at described cooling line, described exhaust emissions pipeline, described driving engine and brake facing position, and described alarm response device comprises the air inlet stop valve be arranged in described admission line and the Fuel Cut Solenoid Valve cutting off the supply of described engine fuel.
Explosion-proof diesel fork lift truck provided by the invention, comprising:
Operation and brake system, power system, driving system, electric system, air inlet and exhaust system, heat exchange series are unified tackling system, described tackling system is fixedly connected with for operating weight with the vehicle frame of described explosion-proof diesel fork lift truck, comprises pallet fork, support and hydraulic efficiency gear;
The two-stage hydraulic pressure cylinder assembly arranged before and after hydraulic efficiency gear comprises, every grade of described hydraulic pressure cylinder assembly includes the left hydraulic cylinder group and right hydraulic actuating cylinder group that are arranged at described support both sides respectively, one of them the bottom of oil cylinder part of two described hydraulic actuating cylinder groups is provided with shunting reducing-flow structure, described shunting reducing-flow structure comprises the movable part and fixed part that cooperatively interact, described movable part and described fixed part are respectively arranged with hydraulic fluid port and choked flow wall, described moving part is in the bottom position of described in-oil cylinder piston rod movement stroke, described piston rod can promote described movable part in its movement travel, described choked flow wall is made to block described hydraulic fluid port.This design makes piston rod promote movable part when being about to the bottom arriving oil cylinder, movable part is with piston rod straight-line motion, because movable part and fixed part arrange the hydraulic fluid port and choked flow wall cooperatively interacted separately, the motion of the relative fixed part of movable part makes the choked flow wall of fixed part block the hydraulic fluid port of movable part, make hydraulic oil by hydraulic fluid port effective aperture reduce, slow down the speed of hydraulic oil backflow, the speed making piston rod decline is tending towards slow, reach the technical purpose of leading reduction of speed before piston rod touches the end, arranging by means of this makes pallet fork be unlikely in the operation dropping to the end because inertia is large and ground collides, decrease equipment operation vibration, reduce the possibility causing spark, greatly improve the safety performance of explosion-proof diesel fork lift truck.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the hydraulic actuating cylinder group of the explosion-proof diesel fork lift truck that Fig. 1 provides for the embodiment of the present invention;
The integral structure schematic diagram of the explosion-proof diesel fork lift truck that Fig. 2 provides for the embodiment of the present invention.
In accompanying drawing, mark is as follows:
Piston rod 1, oil cylinder 2, piston valve core 3, hydraulic fluid port 3-1, tube-in-tube structure 4, opening 4-1, spring installation 5, tackling system 6, electric system 7, overhead guard 8, heat-exchange system 9, air inlet and exhaust system 10, exhaust resistance flame device 10-1.
Detailed description of the invention
The embodiment of the invention discloses a kind of explosion-proof diesel fork lift truck, with the easy technical matters such as vibrations in the tackling system work solving existing diesel fork lift truck.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Refer to Fig. 1-Fig. 2, the structural representation of the hydraulic actuating cylinder group of the explosion-proof diesel fork lift truck that Fig. 1 provides for the embodiment of the present invention; The integral structure schematic diagram of the explosion-proof diesel fork lift truck that Fig. 2 provides for the embodiment of the present invention.
The explosion-proof diesel fork lift truck that the embodiment of the present invention provides, comprise: operation and brake system, power system, driving system, electric system 7, air inlet and exhaust system 10, heat-exchange system 9 and tackling system 6, described tackling system 6 is fixedly connected with for operating weight with the vehicle frame of described explosion-proof diesel fork lift truck, comprises pallet fork, support and hydraulic efficiency gear;
The two-stage hydraulic pressure cylinder assembly arranged before and after described hydraulic efficiency gear comprises, every grade of described hydraulic pressure cylinder assembly includes the left hydraulic cylinder group and right hydraulic actuating cylinder group that are arranged at described support both sides respectively, one of them the bottom of oil cylinder 2 part of two described hydraulic actuating cylinder groups is provided with shunting reducing-flow structure, described shunting reducing-flow structure comprises the movable part and fixed part that cooperatively interact, described movable part and described fixed part are respectively arranged with hydraulic fluid port 3-1 and choked flow wall, the bottom position of piston rod 1 movement travel of described moving part in described oil cylinder 2, described piston rod 1 can promote described movable part in its movement travel, described choked flow wall is made to block described hydraulic fluid port 3-1.
This design makes piston rod 1 promote movable part when being about to the bottom arriving oil cylinder 2, movable part is with piston rod 1 straight-line motion, because movable part and fixed part arrange the hydraulic fluid port 3-1 and choked flow wall cooperatively interacted separately, the motion of the relative fixed part of movable part makes the choked flow wall of fixed part block the hydraulic fluid port 3-1 of movable part, make hydraulic oil by hydraulic fluid port 3-1 effective aperture reduce, slow down the speed of hydraulic oil backflow, the speed making piston rod 1 decline is tending towards slow, reach the technical purpose of leading reduction of speed before piston rod 1 touches the end, arranging by means of this makes pallet fork be unlikely in the operation dropping to the end because inertia is large and ground collides, decrease equipment operation vibration, reduce the possibility causing spark, greatly improve the safety performance of explosion-proof diesel fork lift truck.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned explosion-proof diesel fork lift truck, described movable part comprises piston valve core 3, described piston valve core 3 diverse location is along its length provided with described hydraulic fluid port 3-1, and described movable part also comprises the spring installation 5 between described piston valve core 3 and described oil cylinder 2.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned explosion-proof diesel fork lift truck, described fixed part is specially the tube-in-tube structure 4 being sheathed on described piston valve core 3 periphery, the sidewall of described tube-in-tube structure 4 is provided with the opening 4-1 corresponding with described hydraulic fluid port 3-1 position, slidably fits in the periphery of described tube-in-tube structure 4 inwall and described piston valve core 3.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned explosion-proof diesel fork lift truck, one end that described piston valve core 3 contacts with described piston rod 1 is provided with addendum cone structure, and described piston rod 1 correspondence position is provided with the cone groove with described addendum cone structure male-female engagement.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned explosion-proof diesel fork lift truck, the overhead guard 8 of described explosion-proof diesel fork lift truck comprises the front retaining frame of integral structure, rear retaining frame and upper frame, and described overhead guard 8 is installed on the vehicle frame header board of described explosion-proof diesel fork lift truck.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned explosion-proof diesel fork lift truck, described air inlet and exhaust system 10 comprise extinguishes Mars in tail gas and the exhaust resistance flame device 10-1 reducing exhaust temperature, and described exhaust resistance flame device 10-1 is communicated with the exhaust emissions pipeline of described air inlet and exhaust system 10.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned explosion-proof diesel fork lift truck, described exhaust resistance flame device 10-1 comprises back-fire relief chamber shell, and shell inside in described back-fire relief chamber is provided with the fire-proof plate of isolating Mars from tail gas and the trellis work passed through for tail gas.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned explosion-proof diesel fork lift truck, admission line in described air inlet and exhaust system 10 has connected gas and dust grade filters and air inlet flame trap successively, the back-fire relief air door that described air inlet flame trap comprises closed cavity and arranges in the inner.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned explosion-proof diesel fork lift truck, described heat-exchange system 9 comprises:
Be arranged at the cooling line of described exhaust resistance flame device 10-1 periphery;
The air inlet of driving engine is carried out to the preheating device of preheating, described preheating device comprises the explosion-proof heating plug being installed on engine interior; Described heat-exchange system 9 also comprises the radiator fan to described refrigerant fluid pipeline cooling, and the concrete surface of flabellum of described radiator fan scribbles the static conductive plastics flabellum of static conductive coating.
For optimizing technique scheme further, preferred on the basis of above-described embodiment, in above-mentioned explosion-proof diesel fork lift truck, described explosion proof forklift also comprises detection and protection system, described detection and protection system comprise detecting sensor, warning device and alarm response device, described detecting sensor comprises and is arranged at described cooling line, described exhaust emissions pipeline, the temperature sensor of described driving engine and brake facing position, described alarm response device comprises the air inlet stop valve be arranged in described admission line and the Fuel Cut Solenoid Valve cutting off the supply of described engine fuel.
In this specification sheets, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. an explosion-proof diesel fork lift truck, comprise: operation and brake system, power system, driving system, electric system (7), air inlet and exhaust system (10), heat-exchange system (9) and tackling system (6), described tackling system (6) is fixedly connected with for operating weight with the vehicle frame of described explosion-proof diesel fork lift truck, comprises pallet fork, support and hydraulic efficiency gear;
It is characterized in that, the two-stage hydraulic pressure cylinder assembly arranged before and after described hydraulic efficiency gear comprises, every grade of described hydraulic pressure cylinder assembly includes the left hydraulic cylinder group and right hydraulic actuating cylinder group that are arranged at described support both sides respectively, one of them the bottom of oil cylinder (2) part of two described hydraulic actuating cylinder groups is provided with shunting reducing-flow structure, described shunting reducing-flow structure comprises the movable part and fixed part that cooperatively interact, described movable part and described fixed part are respectively arranged with hydraulic fluid port (3-1) and choked flow wall, the bottom position of piston rod (1) movement travel of described moving part in described oil cylinder (2), described piston rod (1) can promote described movable part in its movement travel, described choked flow wall is made to block described hydraulic fluid port (3-1).
2. explosion-proof diesel fork lift truck according to claim 1, it is characterized in that, described movable part comprises piston valve core (3), described piston valve core (3) diverse location is along its length provided with described hydraulic fluid port (3-1), and described movable part also comprises the spring installation (5) be positioned between described piston valve core (3) and described oil cylinder (2).
3. explosion-proof diesel fork lift truck according to claim 2, it is characterized in that, described fixed part is specially the tube-in-tube structure (4) being sheathed on described piston valve core (3) periphery, the sidewall of described tube-in-tube structure (4) is provided with the opening (4-1) corresponding with described hydraulic fluid port (3-1) position, slidably fits in the periphery of described tube-in-tube structure (4) inwall and described piston valve core (3).
4. explosion-proof diesel fork lift truck according to claim 3, it is characterized in that, one end that described piston valve core (3) contacts with described piston rod (1) is provided with addendum cone structure, and described piston rod (1) correspondence position is provided with the cone groove with described addendum cone structure male-female engagement.
5. the explosion-proof diesel fork lift truck according to any one of Claims 1-4, it is characterized in that, the overhead guard (8) of described explosion-proof diesel fork lift truck comprises the front retaining frame of integral structure, rear retaining frame and upper frame, and described overhead guard (8) is installed on the vehicle frame header board of described explosion-proof diesel fork lift truck.
6. explosion-proof diesel fork lift truck according to claim 5, it is characterized in that, described air inlet and exhaust system (10) comprise extinguishes Mars in tail gas and exhaust resistance flame device (10-1) reducing exhaust temperature, and described exhaust resistance flame device (10-1) is communicated with the exhaust emissions pipeline of described air inlet and exhaust system (10).
7. explosion-proof diesel fork lift truck according to claim 6, is characterized in that, described exhaust resistance flame device (10-1) comprises back-fire relief chamber shell, and shell inside in described back-fire relief chamber is provided with the fire-proof plate of isolating Mars from tail gas and the trellis work passed through for tail gas.
8. explosion-proof diesel fork lift truck according to claim 7, it is characterized in that, admission line in described air inlet and exhaust system (10) has connected gas and dust grade filters and air inlet flame trap successively, the back-fire relief air door that described air inlet flame trap comprises closed cavity and arranges in the inner.
9. explosion-proof diesel fork lift truck according to claim 8, is characterized in that, described heat-exchange system (9) comprising:
Be arranged at the cooling line that described exhaust resistance flame device (10-1) is peripheral;
The air inlet of driving engine is carried out to the preheating device of preheating, described preheating device comprises the explosion-proof heating plug being installed on engine interior; Described heat-exchange system (9) also comprises the radiator fan to described refrigerant fluid pipeline cooling, and the concrete surface of flabellum of described radiator fan scribbles the static conductive plastics flabellum of static conductive coating.
10. dynamic control device according to claim 9; it is characterized in that; described explosion proof forklift also comprises detection and protection system; described detection and protection system comprise detecting sensor, warning device and alarm response device; described detecting sensor comprises the temperature sensor being arranged at described cooling line, described exhaust emissions pipeline, described driving engine and brake facing position, and described alarm response device comprises the air inlet stop valve be arranged in described admission line and the Fuel Cut Solenoid Valve cutting off the supply of described engine fuel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510847437.3A CN105253820A (en) | 2015-11-27 | 2015-11-27 | Explosionproof internal-combustion forklift truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510847437.3A CN105253820A (en) | 2015-11-27 | 2015-11-27 | Explosionproof internal-combustion forklift truck |
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| Publication Number | Publication Date |
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| CN105253820A true CN105253820A (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510847437.3A Pending CN105253820A (en) | 2015-11-27 | 2015-11-27 | Explosionproof internal-combustion forklift truck |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106762945A (en) * | 2016-12-29 | 2017-05-31 | 浙江科力车辆控制系统有限公司 | Explosion proof joint component and its elevating ram |
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