CN212827760U - Air spring suitable for adjusting height of truck frame - Google Patents
Air spring suitable for adjusting height of truck frame Download PDFInfo
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- CN212827760U CN212827760U CN202021388215.2U CN202021388215U CN212827760U CN 212827760 U CN212827760 U CN 212827760U CN 202021388215 U CN202021388215 U CN 202021388215U CN 212827760 U CN212827760 U CN 212827760U
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- air spring
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- height
- end plate
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Abstract
The utility model discloses an air spring suitable for adjusting the height of a truck frame, which belongs to the technical field of truck spare and accessory parts, and comprises a base, wherein the base is fixedly connected on a chassis of a truck, three air spring units are fixedly connected on the base, each air spring unit comprises an air spring end plate, an end plate connecting bolt, an air spring fixing frame, an air bag and an oil-resistant rubber sleeve, the number of the air spring end plates is two, and the two air spring end plates are arranged in a mirror image manner from top to bottom, so that the adjustment of the height of the frame can be adapted, the multistage air bags can be automatically filled, thereby providing stable shock absorption performance, the multistage air bags are sequentially filled to the optimal shock absorption state according to the height of the frame, the quantity of the filled air bags is selected according to the rising height of the frame, so that stable damping performance can be ensured, and the supporting rigidity of the air spring can be improved.
Description
Technical Field
The utility model relates to a lorry spare and accessory part technical field, more specifically say, relate to an air spring that is suitable for adjustment lorry frame height.
Background
A number of air spring embodiments are known in which the air spring is clamped between the chassis and the vehicle frame and has an air spring bellows which is in turn secured between the air spring cover and the rolling piston. The air spring is under internal overpressure during operation. The air spring bellows rolls under load and during the movement of the spring, forming a rolling fold, on the concentric air spring piston/rolling piston outer contour. The air spring is often used in a road automobile or a rail vehicle to realize comfortable elasticity, but the air spring is used on a lorry, the truck frame of the lorry has larger weight after loading, and the height of the truck frame can be adjusted according to the loading and the running conditions, and the existing air spring has the problem that the fluctuation of the damping capacity provided by the air spring is larger after the truck frame rises due to the fact that only one air bag is arranged, and the relation between the internal pressure of the air spring and the jacking height of the air spring is nonlinear, so that a good damping effect cannot be provided for the lorry.
SUMMERY OF THE UTILITY MODEL
1. Technical problem to be solved
To the problem that exists among the prior art, the utility model aims to provide a be suitable for air spring of adjustment lorry frame height, it can realize the adjustment of adaptation frame height, automatic filling multistage gasbag to provide stable shock-absorbing performance, multistage gasbag highly fills to best shock attenuation state according to the frame in proper order, according to the gasbag quantity of highly selecting the packing that the frame rises, can guarantee stable shock-absorbing performance, and can improve air spring's support rigidity.
2. Technical scheme
In order to solve the above problems, the utility model adopts the following technical proposal.
An air spring suitable for adjusting the height of a truck frame comprises a base, wherein the base is fixedly connected to a chassis of a truck, the upper end of the base is fixedly connected with three air spring units through base connecting bolts, each air spring unit comprises an air spring end plate, an end plate connecting bolt, an air spring fixing frame, an air bag and an oil-resistant rubber sleeve, the number of the air spring end plates is two, the two air spring end plates are arranged in a mirror mode from top to bottom, one opposite surfaces of the upper air spring end plate and the lower air spring end plate are fixedly connected with an insertion ring, the insertion ring is inserted into an inner cavity of the air spring fixing frame, the oil-resistant rubber sleeves are fixedly connected between the upper air spring end plate and the lower air spring end plate, the outer side of the air spring fixing frame is fixedly connected with, the outer end of inflation interface and the inflation inlet fixed connection of gasbag are located a plurality ofly the last inflation interface of air spring unit passes through inflation valve and gas-supply pipe fixed connection, gas transmission device fixed connection in gas-supply pipe and the base, and is a plurality of the inflation valve is connected with the controlling means electricity in the base, a plurality of end plate fixed orificess have been seted up on the air spring end plate, and the end plate fixed orifices is the ring array and arranges, is located the air spring unit downside of lower extreme the air spring end plate passes through the upper end fixed connection of base connecting bolt and base, and the air spring end plate that is located the air spring unit of the top passes through roof connecting bolt and roof fixed, roof fixed connection is on the frame.
Furthermore, flange fixing edges are fixedly connected to the side walls of the base and the top plate, and the flange fixing edges are convenient to fixedly install the base and the top plate on a chassis and a frame of the truck.
Furthermore, the inflation valve is an X-shaped electromagnetic valve which is a normally closed two-position two-way direct-acting electromagnetic valve and can keep a normally closed state after the gas filled in the air bag meets the requirement.
Furthermore, one end of the insert ring, which is far away from the air spring end plate, is provided with an inflation seat clamping groove, and the inflation seat clamping groove is arranged at a position corresponding to the inflation seat, so that the upper insert ring and the lower insert ring can be abutted against each other, and the support rigidity in the air spring unit which is not filled with air at the upper end is improved.
Furthermore, the total of four inflating seats are arranged on the inner wall of the four inflating seats surrounding the air spring fixing frame in an annular array mode, so that the inflating speed of the air bag can be greatly improved, the pressure in the air bag is more uniform during inflation, and the operation of equipment can not be hindered when one inflating opening fails, so that later maintenance is facilitated.
Furthermore, the air delivery pipe is a spring spiral high-pressure air pipe and can stretch along with the air spring unit.
Furthermore, the control device in the base can select the number of the inflation valves to be opened according to the height of the vehicle frame, and controls the inflation valves to be opened step by step from bottom to top.
Furthermore, the number of the air spring units can be increased or decreased according to the requirement of the lifting height of the frame between the base and the top plate, and the applicability of the device can be improved by increasing or decreasing the number of the air spring units.
3. Advantageous effects
Compared with the prior art, the utility model has the advantages of:
(1) this scheme can realize the adjustment of adaptation frame height, automatic multistage gasbag of filling to provide stable shock attenuation performance, multistage gasbag fills to best shock attenuation state according to the height of frame in proper order, and the gasbag quantity of filling is selected according to the height that the frame rises, can guarantee stable shock attenuation performance, and can improve air spring's support rigidity.
(2) Fixedly connected with flange fixed edge on the lateral wall of base and roof, the setting up of flange fixed edge makes things convenient for the fixed mounting of base and roof on the chassis of lorry and frame.
(3) The inflation valve is an X-shaped electromagnetic valve which is a normally closed two-position two-way direct-acting electromagnetic valve and can keep a normally closed state after the gas filled in the air bag meets the requirement.
(4) The one end that inserts the ring and keep away from the air spring end plate has seted up the seat draw-in groove of aerifing, and aerify the position setting that the seat draw-in groove corresponds the seat of aerifing for can offset between two upper and lower insert rings, thereby improve the support rigidity in the air spring unit of not filling the air in the upper end.
(5) The air inflation seats are four in number, the four air inflation seats are arranged around the inner wall of the air spring fixing frame in an annular array mode, the air inflation speed of the air bag can be greatly improved, the pressure in the air bag is more uniform when the air bag is inflated, the operation of equipment can not be hindered when one of the air inflation ports breaks down, and later maintenance is facilitated.
(6) The air delivery pipe is a spring spiral high-pressure air pipe and can stretch along with the air spring unit.
(7) The control device in the base can select the quantity that the inflation valve opened according to the height that the frame promoted to control a plurality of inflation valves and open from bottom to top step by step, because the air spring unit that is close to the lower extreme is close to the air supply more, because the air spring frequency of use in being close to the upper end more is lower, fills from bottom to top step by step and can improve the filling efficiency when multistage air spring unit uses.
(8) The number of the air spring units can be increased or decreased according to the requirement of the lifting height of the frame between the base and the top plate, and the applicability of the device can be improved by increasing or decreasing the number of the air spring units.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic view of a three-dimensional structure of an air spring end cap according to the present invention;
fig. 3 is a schematic view of the overhead structure of the air spring fixing frame of the present invention.
The reference numbers in the figures illustrate:
the air spring comprises a base 1, a top plate 2, an air spring end plate 3, a base connecting bolt 4, a top plate connecting bolt 5, an end plate connecting bolt 6, an air spring fixing frame 7, an air bag 8, an oil-resistant rubber sleeve 9, an air conveying pipe 10, an inflation valve 11, a flange fixing edge 12, an inserting ring 13, an inflation seat clamping groove 14, an end plate fixing hole 15, an inflation seat 16 and an inflation connector 17.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1:
referring to fig. 1-3, an air spring suitable for adjusting the height of a truck frame comprises a base 1, wherein the base 1 is fixedly connected to a chassis of a truck, the upper end of the base 1 is fixedly connected with three air spring units through a base connecting bolt 4, the number of the air spring units between the base 1 and a top plate 2 can be increased or decreased according to the requirement of the height of the truck frame, the applicability of the device can be improved by increasing or decreasing the number of the air spring units, the air spring units comprise air spring end plates 3, end plate connecting bolts 6, an air spring fixing frame 7, an air bag 8 and an oil-resistant rubber sleeve 9, the number of the air spring end plates 3 is two, the two air spring end plates 3 are arranged in a vertically mirrored manner, one surfaces of the upper air spring end plate and the lower air spring end plate 3 which, an oil-resistant rubber sleeve 9 is fixedly connected between the upper and lower corresponding air spring end plates 3, an air bag 8 is fixedly connected to the outer side of the air spring fixing frame 7, an inflation seat 16 is fixedly connected to the side wall of the air spring fixing frame 7, the number of the inflation seats 16 is four, the four inflation seats 16 are arranged around the inner wall of the air spring fixing frame 7 in an annular array mode, the inflation speed of the air bag 8 can be greatly improved, the pressure in the air bag 8 is more uniform during inflation, the operation of equipment can not be hindered when one inflation inlet fails, the later maintenance is convenient, an inflation seat clamping groove 14 is formed in one end, away from the air spring end plate 3, of each insertion ring 13, the inflation seat clamping groove 14 is arranged corresponding to the inflation seat 16, the upper and lower insertion rings 13 can be abutted against each other, and the support rigidity in the air spring unit without air filling at the upper end is improved, an inflation connector 17 is fixedly connected to an inflation seat 16, the outer end of the inflation connector 17 is fixedly connected with an inflation opening of an air bag 8, the inflation connector 17 on a plurality of air spring units is fixedly connected with an air delivery pipe 10 through an inflation valve 11, the air delivery pipe 10 is a spring spiral high-pressure air pipe, the air delivery pipe 10 can stretch along with the air spring units, the inflation valve 11 is an X-shaped electromagnetic valve, the X-shaped electromagnetic valve is a normally closed two-position two-way direct-acting electromagnetic valve, the normally closed state can be kept after the air filled in the air bag 8 meets the requirement, the air delivery pipe 10 is fixedly connected with an air delivery device in a base 1, a control device in the base 1 can select the opening number of the inflation valves 11 according to the lifting height of a frame, and control the inflation valves 11 to be opened step by step from bottom to top, because the air spring units closer to the lower end are closer to, fill the packing efficiency when can improve the use of multistage air spring unit step by step from upwards down, a plurality of inflation valves 11 are connected with the controlling means electricity in the base 1, a plurality of end plate fixed orifices 15 have been seted up on the air spring end plate 3, and end plate fixed orifices 15 are the ring type array and arrange, the air spring end plate 3 that is located the air spring unit downside of bottom passes through base connecting bolt 4 and base 1's upper end fixed connection, the air spring end plate 3 that is located the air spring unit of the top passes through roof connecting bolt 5 and is fixed with roof 2, 2 fixed connection of roof are on the frame, fixedly connected with flange fixed edge 12 on the lateral wall of base 1 and roof 2, the setting up of flange fixed edge 12 makes things convenient for the fixed mounting of base 1 and roof 2 on the chassis of lorry and frame.
When the air spring is installed, the base 1 and the top plate 2 are respectively installed on a chassis and a frame of a truck, a plurality of air spring units are fixedly connected between the base 1 and the top plate 2, when the air spring works, the control device in the base 1 selects the number of inflated air spring units according to the lifting height of the frame, and sequentially opens the air spring filling units from bottom to top, firstly opens the inflation valve 11 when the air spring filling units are filled, so that the corresponding air bags 8 are filled with air, and closes the inflation valve 11 when the air bags 8 reach the optimal damping state, thus the adjustment of the height of the truck frame can be realized except that the uppermost air spring unit is in the optimal damping state, the multi-stage air bags are automatically filled, thereby providing stable damping performance, the multi-stage air bags are sequentially filled to the optimal damping state according to the height of the frame, and the number of the filled air bags is, stable damping performance can be ensured, and the support rigidity of the air spring can be improved.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (8)
1. The utility model provides a be suitable for air spring of adjustment lorry frame height, includes base (1), base (1) fixed connection is on lorry's chassis, its characterized in that: the air spring fixing device is characterized in that three air spring units are fixedly connected to the base (1), each air spring unit comprises an air spring end plate (3), an end plate connecting bolt (6), an air spring fixing frame (7), air bags (8) and an oil-resistant rubber sleeve (9), the air spring end plates (3) are two in total, the two air spring end plates (3) are arranged in a mirror image mode from top to bottom, an inserting ring (13) is fixedly connected to one side, opposite to the upper air spring end plate and the lower air spring end plate (3), the inserting ring (13) is inserted into an inner cavity of the air spring fixing frame (7), the oil-resistant rubber sleeve (9) is fixedly connected between the upper air spring end plate and the lower air spring end plate (3), the air bags (8) are fixedly connected to the outer side of the air spring fixing frame (7), an inflating seat (16) is fixedly, the outer end of inflation interface (17) and the inflation inlet fixed connection of gasbag (8) are located a plurality of inflation interface (17) on the air spring unit are through inflation valve (11) and air pipe (10) fixed connection, air pipe (10) and the air transmission device fixed connection in base (1), and are a plurality of inflation valve (11) are connected with the controlling means electricity in base (1), a plurality of end plate fixed orifices (15) have been seted up on air spring end plate (3), and end plate fixed orifices (15) are the ring array and arrange, are located the air spring unit downside of lower extreme air spring end plate (3) are through the upper end fixed connection of base connecting bolt (4) and base (1), are located the air spring unit of upper extreme air spring end plate (3) are fixed with roof (2) through connecting roof connecting bolt (5), the top plate (2) is fixedly connected to the frame.
2. An air spring adapted for adjusting the height of a truck frame according to claim 1, wherein: and flange fixing edges (12) are fixedly connected to the side walls of the base (1) and the top plate (2).
3. An air spring adapted for adjusting the height of a truck frame according to claim 1, wherein: the inflation valve (11) is an X-shaped electromagnetic valve.
4. An air spring adapted for adjusting the height of a truck frame according to claim 1, wherein: one end, far away from the air spring end plate (3), of the insertion ring (13) is provided with an inflating seat clamping groove (14), and the inflating seat clamping groove (14) is arranged corresponding to the inflating seat (16).
5. An air spring adapted for adjusting the height of a truck frame according to claim 1, wherein: the number of the air inflation seats (16) is four, and the four air inflation seats (16) are arranged in an annular array around the inner wall of the air spring fixing frame (7).
6. An air spring adapted for adjusting the height of a truck frame according to claim 1, wherein: the gas transmission pipe (10) is a spring spiral high-pressure gas pipe.
7. An air spring adapted for adjusting the height of a truck frame according to claim 1, wherein: the control device in the base (1) can select the number of the inflation valves (11) to be opened according to the lifting height of the frame, and controls the inflation valves (11) to be opened step by step from bottom to top.
8. An air spring adapted for adjusting the height of a truck frame according to claim 1, wherein: the number of the air spring units can be increased or decreased between the base (1) and the top plate (2) according to the requirement of the lifting height of the vehicle frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021388215.2U CN212827760U (en) | 2020-07-14 | 2020-07-14 | Air spring suitable for adjusting height of truck frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021388215.2U CN212827760U (en) | 2020-07-14 | 2020-07-14 | Air spring suitable for adjusting height of truck frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212827760U true CN212827760U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021388215.2U Active CN212827760U (en) | 2020-07-14 | 2020-07-14 | Air spring suitable for adjusting height of truck frame |
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| Country | Link |
|---|---|
| CN (1) | CN212827760U (en) |
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2020
- 2020-07-14 CN CN202021388215.2U patent/CN212827760U/en active Active
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