CN201597500U - Self-propelled aerial platform truck and chassis - Google Patents
Self-propelled aerial platform truck and chassis Download PDFInfo
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- CN201597500U CN201597500U CN2009201791245U CN200920179124U CN201597500U CN 201597500 U CN201597500 U CN 201597500U CN 2009201791245 U CN2009201791245 U CN 2009201791245U CN 200920179124 U CN200920179124 U CN 200920179124U CN 201597500 U CN201597500 U CN 201597500U
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Abstract
The utility model discloses a self-propelled aerial platform truck chassis, wherein a frame thereof is respectively articulated with a front bridge and a rear bridge, the chassis further comprises a left and a right hydraulic oil cylinders and a three-position six-way reversing valve, the left and the right hydraulic oil cylinders are respectively articulated on the left and the right sides of the frame and the front bridge or the frame and the rear bridge, a first and a third oil ports of the three-position six-way reversing valve are communicated with a pressure oil circuit, a second, a fourth oil ports are communicated with an oil return circuit, a fifth oil port is respectively communicated with a rod cavity of the right hydraulic oil cylinder and a non-rod cavity of the left hydraulic oil cylinder, and a sixth oil port is respectively communicated with a non-rod cavity of the right hydraulic oil cylinder and a rod cavity of the left hydraulic oil cylinder. The three-position six-way reversing valve is arranged between the frame and the rear bridge or the frame and the front bridge, the two ends of a connecting rod are respectively articulated with a valve rod of the three-position six-way reversing valve and the rear bridge or the front bridge. The chassis can balance force and moment between vehicle wheels and a vehicle frame of a stiffening bar vehicle. Based on this, the utility model further provides a self-propelled aerial platform truck with the chassis.
Description
Technical field
The utility model relates to a kind of construction machinery and equipment, is specifically related to a kind of self-propelled aerial working car and chassis thereof.
Background technology
The jib top of self-propelled aerial working car is provided with mechanisms such as workplatform, gets off to be provided with special-purpose self-propelled frame, thereby can realize from walking and aloft work function.As the special-use vehicle of height rescue or aloft work, the self-propelled aerial working car has obtained in each aloft work field using widely.
See also Fig. 1, this figure is the integral structure scheme drawing of existing self-propelled aerial working chassis.
As shown in Figure 1, existing self-propelled frame generally adopts unit frame and vehicle bridge, is rigidly connected between vehicle frame and the vehicle bridge to be integral body.Therefore, when travelling at uneven road surface, the tire grounding state of rigid axle is bad, and it is unsettled that certain tire appears in four tires on chassis, that is, and and the phenomenon of three points of contact.Obviously, for the self-propelled aerial working car, the unsettled phenomenon of tire can influence its vehicle performance: one, vehicle bridge tire grounding state are bad, cause reducing the propulsive effort or the steering capability on chassis; Two, during Uneven road, will produce with the rigidly connected vehicle frame of vehicle bridge and cause and leveling to get on the bus, influence the security and stability of aloft work.
In view of this, but the tire grounded capacity is guaranteed on the chassis of demanding developing power and moment between a kind of wheel of balance rigidity beam vehicle and the vehicle frame urgently, and then balance is got on the bus stressedly in the train operation performance of chassis, prevents that inclination from turning over.
The utility model content
At above-mentioned defective, the technical matters that the utility model solves is, a kind of self-propelled aerial working chassis is provided, this chassis is by Optimal Structure Designing, wheel and power between the vehicle frame and moment with active balance buttress bracing struts vehicle, thereby guarantee the tire grounded capacity, the strained condition that balance is got on the bus when guaranteeing the chassis train operation performance.On this basis, the utility model also provides a kind of self-propelled aerial working car with this chassis.
The self-propelled aerial working chassis that the utility model provides comprises: vehicle frame, propons and back axle, described vehicle frame are hinged with propons and back axle respectively; And this chassis also comprises the right side, right hydraulic ram and three six-way transfer valves; Wherein, described left and right hydraulic ram respectively with the left and right sides that is articulated in described vehicle frame and propons or described vehicle frame and back axle; First hydraulic fluid port of described three six-way transfer valves and the 3rd hydraulic fluid port are communicated with the pressure oil circuit, second hydraulic fluid port and the 4th hydraulic fluid port is communicated with oil return circuit, the 5th hydraulic fluid port is communicated with the rodless cavity of the rod chamber of right hydraulic ram and left hydraulic ram respectively, the 6th hydraulic fluid port is communicated with the rodless cavity of right hydraulic ram and the rod chamber of left hydraulic ram respectively; At first control position, first hydraulic fluid port of this valve is communicated with the 5th hydraulic fluid port, and second hydraulic fluid port is communicated with the 6th hydraulic fluid port, and the 3rd hydraulic fluid port and the 4th hydraulic fluid port are non-conduction; At second control position, the 3rd hydraulic fluid port of this valve and the 4th hydraulic fluid port are communicated with, and first hydraulic fluid port, second hydraulic fluid port, the 5th hydraulic fluid port, the 6th hydraulic fluid port are non-conduction; At the 3rd control position, first hydraulic fluid port of this valve is communicated with the 6th hydraulic fluid port, and second hydraulic fluid port is communicated with the 5th hydraulic fluid port, and the 3rd hydraulic fluid port and the 4th hydraulic fluid port are non-conduction; Being arranged between described vehicle frame and back axle or described vehicle frame and the propons of described three six-way transfer valves, and the two ends of connecting rod are hinged with the valve rod of described three six-way transfer valves and back axle or propons respectively.
Preferably, the unidirectional conducting of oil circuit between described pressure oil circuit to the first hydraulic fluid port.
Preferably, also comprise first balance cock and second balance cock; Wherein, described first balance cock is arranged between the rodless cavity of the 6th hydraulic fluid port of the rod chamber of the 5th hydraulic fluid port of described three six-way transfer valves and right hydraulic ram and described three six-way transfer valves and right hydraulic ram; Described second balance cock is arranged between the rodless cavity of the 5th hydraulic fluid port of the rod chamber of the 6th hydraulic fluid port of described three six-way transfer valves and left hydraulic ram and described three six-way transfer valves and left hydraulic ram.
Preferably, also comprise by pass valve on the oil circuit that is arranged between pressure oil circuit to the first hydraulic fluid port.
The self-propelled aerial working car that the utility model provides comprises chassis, jib and workplatform, and described jib is arranged between chassis and the workplatform, and foregoing self-propelled aerial working chassis is adopted on described chassis.
Between the vehicle frame of the self-propelled aerial working chassis that the utility model provides and the forward and backward bridge for being articulated and connected, and utilize that change in displacement makes change-over valve commutate between vehicle bridge and the vehicle frame, thereby control left and right sides hydraulic ram is flexible with the grounded capacity that guarantees the vehicle bridge tire and the leveling of getting on the bus.In the course of the work, when condition of road surface was comparatively smooth, vehicle bridge was in the mode of operation of basic horizontal, under this state, only passed through jointed shaft carrying between the two between vehicle frame and the vehicle bridge; When condition of road surface was poor slightly, vehicle bridge had to tilt but the unlikely mode of operation that causes the change-over valve commutation, and under this state, jointed shaft and left and right hydraulic ram by between the two between vehicle frame and the vehicle bridge carry simultaneously; When condition of road surface was relatively poor, vehicle bridge had the mode of operation that tilts and cause the change-over valve commutation, under this state, between vehicle frame and the vehicle bridge also jointed shaft and the left and right hydraulic ram by between the two carry simultaneously.
Compared with prior art, the utility model has overcome existing vehicle bridge and vehicle frame is rigidly connected for the limitation of operation site requirements, has higher road surface conformability; All can guarantee the grounded capacity of vehicle bridge tire and the leveling of getting on the bus under any condition of road surface, therefore, the strained condition of can balance when guaranteeing the chassis train operation performance getting on the bus has improved the security and stability of aerial platform greatly.
Description of drawings
Fig. 1 is the integral structure scheme drawing of existing self-propelled aerial working chassis;
Fig. 2 is the integral structure scheme drawing of the car of self-propelled aerial working described in the specific embodiment;
Fig. 3 is the integral structure scheme drawing of the chassis of self-propelled aerial working described in the specific embodiment;
Fig. 4 is the A portion enlarged drawing of Fig. 3;
Fig. 5 is the hydraulic schematic diagram of the chassis of self-propelled aerial working described in the specific embodiment.
Among Fig. 2 to Fig. 5:
Self-propelled aerial working car 100, chassis 10, jib 20, workplatform 30;
The specific embodiment
The utility model is by Optimal Structure Designing, its key points in design is arranged on the forward and backward bridge and vehicle frame on chassis, wheel and power between the vehicle frame and moment with active balance buttress bracing struts vehicle, thereby guarantee the tire grounded capacity, the strained condition that balance is got on the bus when guaranteeing the chassis train operation performance, thus prevent that effectively inclination from turning over.
Be without loss of generality, this paper specifies present embodiment in conjunction with the self-propelled aerial working car shown in the Figure of description 2.
As shown in Figure 2, the self-propelled aerial working car 100 that present embodiment provides comprises chassis 10, jib 20 and workplatform 30, and jib 20 is arranged between chassis 10 and the workplatform 30.Need to prove, jib 20 and workplatform 30 are identical with prior art in this programme, the two ends of this jib 20 are hinged with chassis 10 and workplatform 30 respectively, and jib 20 adopts the telescopic arm support structure, during concrete the application, the operator can be according to operating angle and the length for the treatment of job position adjusting jib 20, so that carry out corresponding aloft work and height rescue.
Certainly, need finish flexible, the luffing operation of jib 20 by corresponding electric control system and hydraulic control system control.Because those of ordinary skill in the art can realize fully based on prior art, so will not give unnecessary details for the detailed structure of jib 20 and workplatform 30 herein.To elaborate the structure and the principle of work on chassis 10 below.
See also Fig. 3, this figure is the integral structure scheme drawing of the described self-propelled aerial working chassis of present embodiment.
As shown in Figure 3, the self-propelled aerial working chassis 10 that provides of present embodiment mainly comprises: vehicle frame 1, propons 2 and back axle 3; Its chief component and prior art basically identical, what both were different is that the vehicle frame 1 in the present embodiment is hinged with propons 2 and back axle 3 respectively, as shown in the figure, realizes aforementioned hinged relationship by jointed shaft 4.Should be appreciated that this jointed shaft 4 need have certain load-carrying capacity, with the security and stability of the operation of guaranteeing to get on the bus.
In addition, as shown in Figure 3, this chassis 10 also comprises right hydraulic ram 51, left hydraulic ram 52 and three six-way transfer valves 6; Wherein, right hydraulic ram 51 and left hydraulic ram 52 respectively be articulated in vehicle frame 1 the left and right sides with back axle 3 so that adjust vehicle bridge with respect to the relative position relation between the vehicle frame by the expanding-contracting action of oil cylinder.
Please in the lump referring to Fig. 4, this figure is the A portion enlarged drawing of Fig. 3.Three six-way transfer valves 6 are arranged at the right positions between vehicle frame 1 and the propons 2, wherein, valve seat 61 is fixedly set on the vehicle frame 1, and valve rod 62 is hinged by connecting rod 7 and propons 2, as shown in the figure, the two ends of connecting rod 7 are hinged with propons 2 with the valve rod 62 of three six-way transfer valves 6 respectively.So design, when producing when vehicle bridge chance uneven road surface, can act on the valve rod 62 of three six-way transfer valves 6 by connecting rod 7, thereby make change-over valve 6 commutate controlling the flexible of right hydraulic ram 51 and left hydraulic ram 52, and then guarantee the vehicle bridge tire grounded capacity and the leveling of getting on the bus.Special version be, only show hydraulic ram among Fig. 3 and be positioned at one group of leveling system that back axle, change-over valve are positioned at propons, and not shown hydraulic ram is positioned at the leveling system annexation that propons, change-over valve are positioned at back axle, with the clear inventive point place that the application is shown.
See also Fig. 5, this figure is the hydraulic schematic diagram of the balanced system of the described self-propelled aerial working chassis of present embodiment.
As shown in Figure 5, three six-way transfer valves 6 have six hydraulic fluid ports, three control positioies, and at first control position, the first hydraulic fluid port 6a of this valve is communicated with the 5th hydraulic fluid port 6e, and the second hydraulic fluid port 6b is communicated with the 6th hydraulic fluid port 6f, and the 3rd hydraulic fluid port 6c and the 4th hydraulic fluid port 6d are non-conduction; At second control position, the 3rd hydraulic fluid port 6c of this valve and the 4th hydraulic fluid port 6d are communicated with, and the first hydraulic fluid port 6a, the second hydraulic fluid port 6b, the 5th hydraulic fluid port 6e, the 6th hydraulic fluid port 6f are non-conduction; At the 3rd control position, the first hydraulic fluid port 6a of this valve is communicated with the 6th hydraulic fluid port 6f, and the second hydraulic fluid port 6b is communicated with the 5th hydraulic fluid port 6e, and the 3rd hydraulic fluid port 6c and the 4th hydraulic fluid port 6d are non-conduction.
After the system pipeline connection is finished, first hydraulic fluid port 6a of three six-way transfer valves 6 and the 3rd hydraulic fluid port 6c are communicated with pressure oil circuit P, preferably, the oil circuit between described pressure oil circuit to the first hydraulic fluid port is provided with check valve 8, to realize the unidirectional conducting between pressure oil circuit to the first hydraulic fluid port; The second hydraulic fluid port 6b and the 4th hydraulic fluid port 6d of three six-way transfer valves 6 are communicated with oil return circuit T; The 5th hydraulic fluid port 6e of three six-way transfer valves 6 is communicated with the rod chamber of right hydraulic ram 51 and the rodless cavity of left hydraulic ram 52 respectively; The 6th hydraulic fluid port 6f of three six-way transfer valves 6 is communicated with the rodless cavity of right hydraulic ram 51 and the rod chamber of left hydraulic ram 52 respectively.
Principle of work below in conjunction with Brief Description Of Drawings chassis balanced system.
In the course of the work, when condition of road surface was comparatively smooth, vehicle bridge was in the mode of operation of basic horizontal, under this state, only passed through jointed shaft 4 carryings between the two between vehicle frame and the vehicle bridge; When the poor slightly displacement of valve rod to three position four-way directional control valve 6 (being positioned at the right side) of condition of road surface was big, the change-over valve commutation is position, a left side (first control position) extremely, at this moment, and the rod chamber oil-feed of right side hydraulic ram 51, the rodless cavity oil-feed of left side hydraulic ram 52; When displacement diminished, change-over valve commutation was to right position (the 3rd control position), and this advances, the rodless cavity oil-feed of right side hydraulic ram 51, the rod chamber oil-feed of left side hydraulic ram 52, thus finish the leveling of vehicle frame, adapt to different road surfaces.Under the situation of Uneven road, jointed shaft and left and right hydraulic ram by between the two between vehicle frame and the vehicle bridge carry simultaneously.
Compared with prior art, this programme has overcome existing vehicle bridge and vehicle frame is rigidly connected for the limitation of operation site requirements, has higher road surface conformability; All can guarantee the grounded capacity of vehicle bridge tire and the leveling of getting on the bus under any condition of road surface, therefore, the strained condition of can balance when guaranteeing the chassis train operation performance getting on the bus has improved the security and stability of aerial platform greatly.
In the engineering process, stretching out along with the variation of load of hydraulic ram changes, and still can move reposefully in load variations for guaranteeing hydraulic ram, and as shown in Figure 5, this programme is provided with and comprises first balance cock 91 and second balance cock 92.
Simultaneously, for avoiding system pressure too high service life that influences the aforementioned hydraulic oil cylinder, to the oil circuit between first hydraulic fluid port of change-over valve, the by pass valve (not shown) can be set at pressure oil circuit P.
To sum up, for being articulated and connected, and utilize that change in displacement makes change-over valve commutate between vehicle bridge and the vehicle frame between the vehicle frame of the self-propelled aerial working chassis that the utility model provides and the forward and backward bridge, thereby control the flexible of right hydraulic ram; And, strengthen the grounded capacity of change-over valve place bridge by being arranged at hydraulic ram and the change-over valve on the different forward and backward bridges.Use chassis described in the utility model when running into uneven road surface, can guarantee that simultaneously vehicle frame is in the mode of operation of basic horizontal at the grounded capacity that guarantees tire.
The above only is a preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. self-propelled aerial working chassis comprises: vehicle frame, propons and back axle, it is characterized in that,
Described vehicle frame is hinged with propons and back axle respectively; And this chassis also comprises:
Left and right hydraulic ram is respectively with the left and right sides that is articulated in described vehicle frame and propons or described vehicle frame and back axle;
Three six-way transfer valves, its first hydraulic fluid port and the 3rd hydraulic fluid port are communicated with the pressure oil circuit, second hydraulic fluid port and the 4th hydraulic fluid port is communicated with oil return circuit, the 5th hydraulic fluid port is communicated with the rodless cavity of the rod chamber of right hydraulic ram and left hydraulic ram respectively, the 6th hydraulic fluid port is communicated with the rodless cavity of right hydraulic ram and the rod chamber of left hydraulic ram respectively; At first control position, first hydraulic fluid port of this valve is communicated with the 5th hydraulic fluid port, and second hydraulic fluid port is communicated with the 6th hydraulic fluid port, and the 3rd hydraulic fluid port and the 4th hydraulic fluid port are non-conduction; At second control position, the 3rd hydraulic fluid port of this valve and the 4th hydraulic fluid port are communicated with, and first hydraulic fluid port, second hydraulic fluid port, the 5th hydraulic fluid port, the 6th hydraulic fluid port are non-conduction; At the 3rd control position, first hydraulic fluid port of this valve is communicated with the 6th hydraulic fluid port, and second hydraulic fluid port is communicated with the 5th hydraulic fluid port, and the 3rd hydraulic fluid port and the 4th hydraulic fluid port are non-conduction; And
Being arranged between described vehicle frame and back axle or described vehicle frame and the propons of described three six-way transfer valves, and the two ends of connecting rod are hinged with the valve rod of described three six-way transfer valves and back axle or propons respectively.
2. self-propelled aerial working chassis according to claim 1 is characterized in that, the unidirectional conducting of oil circuit between described pressure oil circuit to the first hydraulic fluid port.
3. self-propelled aerial working chassis according to claim 1 is characterized in that, also comprises:
First balance cock is arranged between the rodless cavity of the 6th hydraulic fluid port of the rod chamber of the 5th hydraulic fluid port of described three six-way transfer valves and right hydraulic ram and described three six-way transfer valves and right hydraulic ram; With
Second balance cock is arranged at the 5th hydraulic fluid port of the rod chamber of the 6th hydraulic fluid port of described three six-way transfer valves and left hydraulic ram and described three six-way transfer valves and between the rodless cavity of hydraulic ram.
4. self-propelled aerial working chassis according to claim 1 is characterized in that, also comprises:
By pass valve is arranged on the oil circuit between pressure oil circuit to the first hydraulic fluid port.
5. the self-propelled aerial working car comprises chassis, jib and workplatform, and described jib is arranged between chassis and the workplatform, it is characterized in that, adopt as each described self-propelled aerial working chassis in the claim 1 to 5 on described chassis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201791245U CN201597500U (en) | 2009-09-24 | 2009-09-24 | Self-propelled aerial platform truck and chassis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201791245U CN201597500U (en) | 2009-09-24 | 2009-09-24 | Self-propelled aerial platform truck and chassis |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201597500U true CN201597500U (en) | 2010-10-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201791245U Expired - Lifetime CN201597500U (en) | 2009-09-24 | 2009-09-24 | Self-propelled aerial platform truck and chassis |
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| Country | Link |
|---|---|
| CN (1) | CN201597500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264132B (en) * | 2013-05-17 | 2016-12-28 | 天津市天锻压力机有限公司 | Mobile working platform hydraulic control system based on balanced valve |
| CN110271997A (en) * | 2019-06-27 | 2019-09-24 | 中车四方车辆有限公司 | A kind of track aerial operation platform leveling device and road rail vehicle |
-
2009
- 2009-09-24 CN CN2009201791245U patent/CN201597500U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264132B (en) * | 2013-05-17 | 2016-12-28 | 天津市天锻压力机有限公司 | Mobile working platform hydraulic control system based on balanced valve |
| CN110271997A (en) * | 2019-06-27 | 2019-09-24 | 中车四方车辆有限公司 | A kind of track aerial operation platform leveling device and road rail vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170224 Address after: 221004 Jiangsu Province, Xuzhou City Yunlong District No. 165 Patentee after: Xugong fire safety equipment Co. Ltd. Address before: 221004 Xuzhou, Zhejiang Province, Jiangsu Road No. 165 Patentee before: Xuzhou Heavy Machinery Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20101006 |
|
| CX01 | Expiry of patent term |