CN202186256U - Oil gas suspension mechanism and engineering truck comprising same - Google Patents
Oil gas suspension mechanism and engineering truck comprising same Download PDFInfo
- Publication number
- CN202186256U CN202186256U CN201120200303XU CN201120200303U CN202186256U CN 202186256 U CN202186256 U CN 202186256U CN 201120200303X U CN201120200303X U CN 201120200303XU CN 201120200303 U CN201120200303 U CN 201120200303U CN 202186256 U CN202186256 U CN 202186256U
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- ball pivot
- oleo
- oil cylinder
- pneumatic suspension
- half free
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Abstract
The utility model provides an oil gas suspension mechanism and an engineering truck comprising the same. The oil gas suspension mechanism comprises a spherical hinge seat, a connecting portion and a suspended oil cylinder, wherein the connecting portion is provided with an inner spherical surface and used for being connected with a truck frame, the suspended oil cylinder is mounted on the spherical hinge seat, a spherical hinge portion projected spherically is arranged in the middle of the body of the suspended oil cylinder, and the spherical hinge portion is matched with the inner spherical surface of the spherical hinge seat to form a hinge mechanism. An extending end of a piston rod of the suspended oil cylinder is provided with a hinge portion hinged with an axle of the truck. The suspended oil cylinder of the oil gas suspension mechanism is connected with the truck frame by the aid of the spherical hinge seat arranged in the middle of the body of the suspended oil cylinder, the upper connecting point of the suspended oil cylinder is lowered, and thereby the integral height of the engineering truck can be effectively reduced, the gravity center is lowered and stability of the integral engineering truck is improved.
Description
Technical field
The utility model relates to the vehicle suspension system field, especially, relates to a kind of oleo-pneumatic suspension mechanism and has the engineering truck of this hitch.
Background technology
For general oil cylinder,, adopt ball pivot or universal-joint, ball pivot or the effect of universal-joint bearing radial force at the oil cylinder two ends in order to let oil cylinder swing within the specific limits.Like the oleo-pneumatic suspension oil cylinder, it is for connecting the shock absorber of vehicle bridge and vehicle frame, and effect is that ground is delivered to vehicle frame, the traveling comfort of increase car load in the face of the impact of vehicle bridge when alleviating running car.Simultaneously, for preventing too much vibration, in oleo-pneumatic suspension, be added with damping hole, with damped vibration rapidly.
As shown in Figure 1; The mounting means of oleo-pneumatic suspension oil cylinder commonly used is that bearing pin is installed; Be that the hanging oil cylinder upper/lower terminal is respectively arranged with bulb 1 and following bulb 2; On vehicle frame and vehicle bridge, leave simultaneously a bearing, oleo-pneumatic suspension oil cylinder upper/lower terminal is connected with vehicle bridge with vehicle frame through the bearing pin that passes through separately respectively.Adopt the oleo-pneumatic suspension oil cylinder of this structure, as far as its connection hinge or universal-joint, stressed is diametral load, the load of hinge or universal-joint is had relatively high expectations, and, connect the two ends that the joint is arranged in oil cylinder, limited the layout of oil cylinder to a certain extent.In order to reduce the car load center of gravity, attachment point need be arranged in the vehicle frame upper end as far as possible on the oil cylinder, increases design difficulty.Simultaneously, oil cylinder requires to be arranged in the vehicle frame both sides, when frame width during greater than vehicle bridge oil cylinder attachment point width, need carry out bigger change to vehicle frame and could arrange the suspension oil cylinder.
Therefore, be necessary to provide a kind of and can effectively reduce the car load height, increase whole vehicle stability, and mounting means flexibly and be easy to install the oleo-pneumatic suspension oil cylinder mechanism.
The utility model content
The engineering truck that the utility model purpose is that a kind of oleo-pneumatic suspension mechanism is provided and has this hitch; With the oleo-pneumatic suspension system that solves existing engineering truck during with the use of twins vehicle bridge coupling; Because spacing is little between vehicle bridge tire and the vehicle frame, the technical matters that the oleo-pneumatic suspension oil cylinder is difficult to arrange.
For realizing above-mentioned purpose, according to an aspect of the utility model, a kind of oleo-pneumatic suspension mechanism is provided, comprising: the ball pivot seat has Internal Spherical Surface and is used for connecting portion connected to ground; Hanging oil cylinder is installed on the ball pivot seat, wherein: the middle part of the cylinder body of hanging oil cylinder has the ball pivot portion of protrusion spherical in shape, and ball pivot portion matches with the Internal Spherical Surface of ball pivot seat to constitute linkwork; The external part of the piston rod of hanging oil cylinder has and vehicle bridge pivotally attached articulated section.
Further, the ball pivot seat comprises the first half free bearings and the second half free bearings of mutual fastening, and connecting portion is arranged on the first half free bearings or the second half free bearings.
Further, be respectively arranged with first docking section and second docking section on the first half free bearings and the second half free bearings, first docking section is provided with the screw that is connected that cooperatively interacts with second docking section.
Further; The maximum cross-section coplane of the interface of the first half free bearings and the second half free bearings and the along continuous straight runs of ball pivot portion; First docking section is the first gimbal panel that is arranged at the first half free bearing peripheries, and second docking section is the second gimbal panel that is arranged at the second half free bearing peripheries.
Further; Comprise a plurality of first screws that are provided with equally spacedly along first circumference on the first gimbal panel; Comprise a plurality of second screws that are provided with equally spacedly along second circumference on the second gimbal panel; Wherein, first circumference and the coaxial same radius of second circumference, and the quantity of first screw and second screw is all identical with radius.
Further; The periphery of the first gimbal panel or the second gimbal panel is provided with the outward extending ring portion of along continuous straight runs; The external diameter of ring portion greater than with the external diameter of its opposing horizontal anchor ring plate to form connecting portion, connecting portion is provided with the 3rd screw that along the circumferential direction is uniformly distributed with.
Further, the inboard of ball pivot seat is provided with the oil storage annular groove, and the arranged outside of ball pivot seat has the filler port that is communicated with and points to the center of ball pivot seat with the oil storage annular groove, is provided with the oiling plug screw in the said filler port.
Further, ball pivot portion along Boring mill to the cornerite radian greater than the ball pivot seat along Boring mill to the cornerite radian.
Further, be provided with telescopic dust protecting cap between the lower end of the articulated section of piston rod and cylinder body.
According to the utility model on the other hand, a kind of engineering truck is provided also, has been connected through above-mentioned oleo-pneumatic suspension mechanism between the vehicle frame of this project vehicle and the vehicle bridge.
The utlity model has following beneficial effect:
Hanging oil cylinder links to each other with vehicle frame through the ball pivot seat that is arranged on the cylinder body middle part, with the last point of connection reduction of hanging oil cylinder, and then can reduce the car load height effectively, lowers the center of gravity, and increases whole vehicle stability; In addition, because hanging oil cylinder is installed in bottom of frame, but not the vehicle frame side, thereby can avoid because vehicle frame side and tire pitch deficiency cause installing the problem of hanging oil cylinder by actv..
Except top described purpose, feature and advantage, the utility model also has other purpose, feature and advantage.To do further detailed explanation to the utility model with reference to figure below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide the further understanding to the utility model, and illustrative examples of the utility model and explanation thereof are used to explain the utility model, do not constitute the improper qualification to the utility model.In the accompanying drawings:
Fig. 1 is existing oleo-pneumatic suspension cylinder structure scheme drawing;
Fig. 2 is the mounting structure scheme drawing of oleo-pneumatic suspension mechanism on vehicle of the utility model preferred embodiment;
Fig. 3 is the cylinder body cross-sectional view of the utility model preferred embodiment;
Fig. 4 is the hanging oil cylinder of the utility model preferred embodiment and the unitized construction scheme drawing of ball pivot seat;
Fig. 5 is the first half free bearings of the utility model preferred embodiment and the plan structure signal of first docking section;
Fig. 6 be the utility model preferred embodiment the second half free bearings, second docking section and connecting portion look up structural representation;
Fig. 7 is the cross-sectional view of the first half free bearings and the second half free bearings of the utility model preferred embodiment; And
Fig. 8 is the hanging oil cylinder pendulum angle scheme drawing of the utility model preferred embodiment.
The specific embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figures 2 and 3, according to an aspect of the utility model, a kind of oleo-pneumatic suspension mechanism is provided, this oleo-pneumatic suspension mechanism comprises hanging oil cylinder, and the middle part of the cylinder body 11 of hanging oil cylinder has the 11a of ball pivot portion of protrusion spherical in shape.Correspondingly; The lower shoe 20 of vehicle frame is provided with ball pivot seat 30; The periphery of the inside face of this ball pivot seat 30 and the 11a of ball pivot portion is complementary, and like this, ball pivot portion can be installed in the ball pivot seat 30 that the shape with the 11a of ball pivot portion adapts; So that the 11a of ball pivot portion and ball pivot seat 30 constitutes linkworks, and then to make cylinder body 11 be that supporting base can be swung with ball pivot seat 30.Ball pivot seat 30 is provided with and is used for the connecting portion that links to each other with the lower shoe 20 of vehicle frame; The external part of the piston rod 13 of hanging oil cylinder has and vehicle bridge 40 pivotally attached articulated section 13a.
Dismounting for the ease of ball pivot seat 30; Ball pivot seat 30 can comprise the first half free bearings 31 and the second half free bearings 32 of mutual fastening; The connecting portion that is used for linking to each other with the lower shoe 20 of vehicle frame can be arranged on the first half free bearings 31, also can be arranged on the second half free bearings 32.
As shown in Figure 4; For the first half free bearings 31 and the second half free bearings 32 can be snapped together; And can adapt to the impact in the vehicle ' process; Be respectively arranged with first docking section 311 on the first half free bearings 31 and the second half free bearings 32 and 321, the first docking sections 311, second docking section are provided with the screw that is connected that cooperatively interacts with second docking section 321.When ball pivot seat 30 is installed; The first half free bearings 31 and the second half free bearings 32 are set on the 11a of ball pivot portion of cylinder body 11; Then with cooperatively interacting on first docking section 311 and second docking section 321 be connected the screw alignment, utilize bolt that the first half free bearings 31 and the second half free bearings 32 are snapped together at last.
The first half free bearings 31 and the second half free bearings 32 can snap together by along continuous straight runs, also can vertically snap together.Preferably; The first half free bearings 31 and the second half free bearing 32 along continuous straight runs snap together; That is to say; The maximum cross-section coplane of the interface of the first half free bearings 31 and the second half free bearings 32 and the along continuous straight runs of the 11a of ball pivot portion, first docking section 311 be for being arranged at the first gimbal panel of the first half free bearing 31 peripheries, and second docking section 321 is for being arranged at the second gimbal panel of the second half free bearing 32 peripheries.That is to say that the first half free bearings 31 are passed down through from the upper end of cylinder body 11, the second half free bearings 32 are upward through from the lower end of cylinder body 11 with the first half free bearings 31 and fasten.
Like Fig. 5 and shown in Figure 6; For the first half free bearings 31 and the second half free bearings 32 can closely be fastened; And can bear the various impacts in the vehicle ' process; Can on first gimbal panel (first docking section 311) and the second gimbal panel (second docking section 321), many tapped bore to cooperatively interacting be set, carry out fastening with a plurality of bolts again.Preferably; Can be provided with a plurality of first screws 313 equally spacedly at the first gimbal panel upper edge, first circumference; Second circumference is provided with a plurality of second screws 323 equally spacedly in the second gimbal panel upper edge; Wherein, the coaxial same radius of first circumference and second circumference, the quantity of first screw 313 and second screw 323 is all identical with radius.
In order to practice thrift installing space; Simplify the structure of oleo-pneumatic suspension mechanism; The periphery of the first gimbal panel or the second gimbal panel is provided with the outward extending ring portion of along continuous straight runs, the external diameter of ring portion greater than with the external diameter of its opposing horizontal anchor ring plate to form said connecting portion.Preferably; The connecting portion that is used for linking to each other with the lower shoe 20 of vehicle frame can be the 3rd gimbal panel 324 that radially outward stretches out along the second gimbal panel; And the external diameter of the 3rd gimbal panel 324 is greater than the external diameter of the first gimbal panel; So that the 3rd gimbal panel 324 can directly link to each other with the lower shoe 20 of vehicle frame, and can the first gimbal panel be clipped in the middle.A plurality of the 3rd screw 325, the three screws of along the circumferential direction equidistantly arranging 325 can be set on the 3rd gimbal panel 324 can be used to realize purpose that ball pivot seat 30 is linked to each other with the lower shoe 20 of vehicle frame.
In fact; The 3rd gimbal panel 324 and the second gimbal panel are the panel of one, do not have tangible demarcation line, but in order to distinguish; Adopt dotted line that the 3rd gimbal panel 324 and the second gimbal panel area are separated among Fig. 6, be merely and be convenient to understand.
As shown in Figure 7; Owing to can produce relative motion between the 11a of ball pivot portion of ball pivot seat 30 and cylinder body 11; In order to improve the lubricity between ball pivot seat 30 and the 11a of ball pivot portion; The inboard of ball pivot seat 30 is provided with oil storage annular groove 34, and the arranged outside of ball pivot seat 30 has the filler port 35 that is communicated with and points to the center of ball pivot seat 30 with oil storage annular groove 34, and is provided with oiling plug screw 36 in the filler port 35.
When car load goes; There is relative motion between vehicle bridge 40 and the vehicle frame; Therefore, the design of oil cylinder should be able to be satisfied the needs of this relative motion, that is to say; Cylinder body 11 need decide according to the carrying capacity of car load design-calculated size and requirement with the amplitude of fluctuation of ball pivot seat 30 for a spot wobble, promptly will satisfy the car load requirement.
As shown in Figure 8, between cylinder body 11 in service and the first half free bearings 31 and the second half free bearings 32, interfere, the 11a of ball pivot portion along the axial cornerite radian of cylinder body 11 greater than ball pivot seat 30 along the axial cornerite radian of cylinder body 11.Also we can say; The two ends of the 11a of ball pivot portion are reserved with the reservation arc portion that is not covered by ball pivot seat 30; The arc length of reservation arc portion becomes big greatly with the change of the full swing angle of cylinder body 11; That is to say, can change the arc length of the reservation arc portion of the 11a of ball pivot portion according to the variation of the full swing angle of the cylinder body 11 of hanging oil cylinder.Changing an angle sees; Also can utilize formula α≤min (Φ 1, and Φ 2) to represent, wherein; α is the maximum pendulum angle of hanging oil cylinder; Angle Φ 1 and angle Φ 2 are respectively the pairing angle of reservation arc portion of the top and bottom of the 11a of ball pivot portion, if Φ 1, Φ 2 less than the required maximum pendulum angle α of hanging oil cylinder, then should increase ball pivot seat 30 top and bottom reservation arc portion length (in other words; Should reduce the cornerite arc length of the first half free bearings 31 and the second half free bearings 32, and also want to satisfy the force request of ball pivot seat 30 when reducing the cornerite arc length).
In order to prevent that dust from passing through to get in the cylinder body 11 with the fore and aft motion of piston rod 13, telescopic, rubber-like dust protecting cap 50 can be set between the lower end of the articulated section of piston rod 13 13a and cylinder body 11.
Another aspect according to the utility model also provides a kind of engineering truck, can connect through above-mentioned oleo-pneumatic suspension mechanism between the vehicle frame of this project vehicle and the vehicle bridge.The lower end of hanging oil cylinder and the connection mode of vehicle bridge are constant, and the point of connection of upper end moves to the midway location of oil cylinder.Oil cylinder adopts bolted connection with being connected of other parts, and after oil cylinder installed, the upper end can be hidden in the vehicle frame box house, practiced thrift the height on car load chassis.
Hanging oil cylinder can be arranged in the inside of vehicle frame casing, has effectively utilized the car load space, is beneficial to the layout of other parts, simultaneously owing in casing, can prevent the pollution of dust to oil cylinder to a certain extent.Cylinder pipe can be arranged from box house, makes car load more attractive in appearance.
When master layout, frame width is during greater than the width of vehicle bridge upper cylinder mounting bracket, and the oil cylinder hitch that adopts the utility model to provide is the most suitable.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (11)
1. an oleo-pneumatic suspension mechanism is characterized in that, comprising:
Ball pivot seat (30) has Internal Spherical Surface and is used for connecting portion connected to ground;
Hanging oil cylinder is installed on the said ball pivot seat (30), and the middle part of the cylinder body of said hanging oil cylinder (11) has the ball pivot portion (11a) of protrusion spherical in shape, said ball pivot portion (11a) the formation linkwork that matches with the Internal Spherical Surface of said ball pivot seat (30).
2. oleo-pneumatic suspension according to claim 1 mechanism is characterized in that, the external part of the piston rod of said hanging oil cylinder (13) has and vehicle bridge (40) pivotally attached articulated section (13a).
3. oleo-pneumatic suspension according to claim 2 mechanism; It is characterized in that; Said ball pivot seat (30) comprises the first half free bearings (31) and the second half free bearings (32) of mutual fastening; Be respectively arranged with first docking section (311) and second docking section (321) on said the first half free bearings (31) and said the second half free bearings (32), said first docking section (311) is provided with the screw that is connected that cooperatively interacts with said second docking section (321).
4. oleo-pneumatic suspension according to claim 3 mechanism is characterized in that, said connecting portion is arranged on said the first half free bearings (31) or said the second half free bearings (32).
5. oleo-pneumatic suspension according to claim 4 mechanism; It is characterized in that; The maximum cross-section coplane of the interface of said the first half free bearings (31) and said the second half free bearings (32) and the along continuous straight runs of said ball pivot portion (11a); Said first docking section (311) is for being arranged at the first gimbal panel of said the first half free bearing (31) peripheries, and said second docking section (321) is for being arranged at the second gimbal panel of said the second half free bearing (32) peripheries.
6. oleo-pneumatic suspension according to claim 5 mechanism; It is characterized in that; Comprise a plurality of first screws (313) that are provided with equally spacedly along first circumference on the said first gimbal panel, comprise a plurality of second screws (323) that are provided with equally spacedly along second circumference on the said second gimbal panel, wherein; Said first circumference and the coaxial same radius of said second circumference, and the quantity of said first screw (313) and said second screw (323) is all identical with radius.
7. oleo-pneumatic suspension according to claim 6 mechanism; It is characterized in that; The periphery of said first gimbal panel or the said second gimbal panel is provided with the outward extending ring portion of along continuous straight runs; The external diameter of said ring portion greater than with the external diameter of its opposing horizontal anchor ring plate to form said connecting portion, said connecting portion is provided with the 3rd screw (325) that along the circumferential direction is uniformly distributed with.
8. according to each described oleo-pneumatic suspension mechanism in the claim 1 to 7; It is characterized in that; The inboard of said ball pivot seat (30) is provided with oil storage annular groove (34); The arranged outside of said ball pivot seat (30) has the filler port (35) that is communicated with and points to the center of said ball pivot seat (30) with said oil storage annular groove (34), is provided with oiling plug screw (36) in the said filler port (35).
9. oleo-pneumatic suspension according to claim 8 mechanism is characterized in that, the axial cornerite radian of the said cylinder body in edge (11) of said ball pivot portion (11a) greater than said ball pivot seat (30) along the axial cornerite radian of said cylinder body (11).
10. oleo-pneumatic suspension according to claim 8 mechanism is characterized in that, is provided with telescopic dust protecting cap (50) between the articulated section (13a) of the piston rod of said hanging oil cylinder (13) and the lower end of said cylinder body (11).
11. an engineering truck has vehicle frame and vehicle bridge, it is characterized in that, connects through each described oleo-pneumatic suspension mechanism in the claim 1 to 10 between said vehicle frame and the said vehicle bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120200303XU CN202186256U (en) | 2011-06-14 | 2011-06-14 | Oil gas suspension mechanism and engineering truck comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120200303XU CN202186256U (en) | 2011-06-14 | 2011-06-14 | Oil gas suspension mechanism and engineering truck comprising same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202186256U true CN202186256U (en) | 2012-04-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120200303XU Expired - Fee Related CN202186256U (en) | 2011-06-14 | 2011-06-14 | Oil gas suspension mechanism and engineering truck comprising same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202186256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275481A (en) * | 2011-06-14 | 2011-12-14 | 三一汽车起重机械有限公司 | Oil-gas suspension mechanism and engineering vehicle with suspension mechanism |
-
2011
- 2011-06-14 CN CN201120200303XU patent/CN202186256U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102275481A (en) * | 2011-06-14 | 2011-12-14 | 三一汽车起重机械有限公司 | Oil-gas suspension mechanism and engineering vehicle with suspension mechanism |
| WO2012171411A1 (en) * | 2011-06-14 | 2012-12-20 | 湖南三一智能控制设备有限公司 | Oil-gas suspension mechanism and engineering vehicle with the suspension mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120411 Termination date: 20130614 |