CN214450525U - Three-stage tipping air cylinder and tipping vehicle - Google Patents
Three-stage tipping air cylinder and tipping vehicle Download PDFInfo
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- CN214450525U CN214450525U CN202022920415.4U CN202022920415U CN214450525U CN 214450525 U CN214450525 U CN 214450525U CN 202022920415 U CN202022920415 U CN 202022920415U CN 214450525 U CN214450525 U CN 214450525U
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Abstract
The utility model discloses a three-stage tipping air cylinder and a tipping vehicle, which comprises an air cylinder jacket; the three-stage tilting air cylinder comprises an outer piston, an air cylinder jacket, a first through hole, a first packing groove, a second outer step, an inner piston, a piston rod, a lower end and an inner piston, wherein the outer piston is inserted into the outer piston, a sealing cover is arranged at the upper end of the middle piston, the middle of the sealing cover is provided with the first through hole, the first packing groove is formed in the inner wall of the first through hole, the second outer step is arranged at the lower end of the middle piston, the inner piston is arranged in the middle piston in a sliding mode, the lower end of the piston rod is connected with the inner piston, the upper end of the piston rod penetrates through the first through hole, the head of the piston rod is connected with a carriage of a tilting vehicle in a rotating mode, a first pin hole is formed in the upper end of the piston rod, a first convex disc is annular and is arranged at the upper portion of the air cylinder jacket, the three-stage tilting air cylinder not only meets the installation space at the bottom of the tilting vehicle, but also has enough stroke, and the sealing performance of the three-stage tilting air cylinder is improved through the arrangement of packing.
Description
Technical Field
The utility model belongs to the technical field of freight train control system, more specifically relates to a tertiary reservoir and the car that tumbles of tumbling.
Background
The air reservoir used for tipping the carriage in China is only a second-stage tipping cylinder for a KF60AK self-dumping car with a load of 60t, and the air reservoir stroke (1218mm) required by the air reservoir is shorter and is only suitable for the requirement of tipping the carriage at 45 degrees. In order to meet the requirement of the using stroke of the single-side dump self-dumping car with the dumping angle of 65 degrees, the dumping air cylinder is limited by the space of the car, and needs to be designed into a three-stage dumping air cylinder, the effective pushing stroke of the dumping air cylinder needs to be larger than 2020mm, and the outline height needs to be smaller than 1100 mm. The existing two-stage tilting cylinder has some problems in the practical application process, and mainly comprises the following steps: the air cylinder is not tightly sealed, so that grease in the air cylinder is hardened, and the action of the air cylinder is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a tertiary reservoir and the tipping wagon of tumbling to the not enough that exists among the prior art, this tertiary reservoir of tumbling had both satisfied the installation space of tipping wagon bottom, had sufficient stroke again to improve the leakproofness of this tertiary reservoir of tumbling through the setting of packing.
In order to achieve the above object, the present invention provides a three-stage tilting reservoir, including:
an air cylinder outer sleeve;
the outer piston is inserted into the air cylinder outer sleeve, a first inner step is arranged at the upper part of the outer piston, and a first outer step is arranged at the lower part of the outer piston;
the middle piston is inserted into the outer piston, a sealing cover is arranged at the upper end of the middle piston, a first through hole is formed in the middle of the sealing cover, a first packing groove is formed in the inner wall of the first through hole, and a second outer step is arranged at the lower part of the middle piston;
the inner piston is arranged in the middle piston in a sliding mode;
the lower end of the piston rod is connected with the inner piston, the upper end of the piston rod penetrates through the first through hole, the head of the piston rod is rotatably connected with a carriage of the tipping vehicle, and the upper end of the piston rod is provided with a first pin hole;
the first convex disc is annular and is arranged at the upper part of the air cylinder outer sleeve, the inner periphery of the first convex disc is in sliding connection with the outer side wall of the outer piston, and a second packing groove is formed in the inner periphery of the first convex disc;
the second convex disc is annular and is arranged at the upper part of the outer piston, the inner periphery of the second convex disc is in sliding connection with the outer side wall of the middle piston, and a third packing groove is formed in the inner periphery of the second convex disc;
and fillers are filled in the third filler groove, the second filler groove and the third filler groove.
Optionally, three limiting blocks are evenly distributed on the lower portion of the inner side wall of the outer piston along the circumference, and the peripheries of the limiting blocks are matched with the inner periphery of the outer piston.
Optionally, the periphery of the lower portion of the piston rod is provided with threads, the lower side of the inner piston is provided with a nut matched with the threads, and an anti-loosening piece is arranged between the nut and the inner piston.
Optionally, the outer periphery of the first outer step, the outer periphery of the second outer step and the outer periphery of the inner piston are provided with Y-shaped sealing rings.
Optionally, a limiting groove is axially formed in the lower portion of the piston rod, the anti-loosening piece is annular, a protruding portion matched with the limiting groove is arranged on the inner periphery of the anti-loosening piece, a bending portion is arranged on the outer periphery of the anti-loosening piece, and the bending portion can be wrapped on the outer side of the nut through bending.
Optionally, the both sides of reservoir overcoat are provided with the ear, one of them the ear is provided with fills the exhaust interface, it passes through the air flue intercommunication to fill the exhaust interface tertiary reservoir bottom of tumbling, the air flue is including seting up in the first part of reservoir overcoat bottom, seting up second part on the reservoir overcoat lateral wall and seting up in the third part in the ear, first part upper portion is open.
Optionally, two bushings are arranged in the first pin hole, an oil storage groove is formed in a gap between the two bushings, and a pressure filling oil cup is arranged on one side of the oil storage groove.
Optionally, the ear of the air cylinder jacket is provided with a sliding bearing, and the sliding bearing is provided with a lubricating structure.
The utility model also provides a tipping vehicle, including foretell tertiary reservoir of tumbling.
Optionally, a connecting plate is arranged on the lower side of the carriage of the tipper, a fixing hole is formed in the connecting plate, the fixing hole and the first pin hole are connected with a round top car pin in a rotating mode together, a limiting piece is arranged on the round top car pin, and the limiting piece is fixed on the connecting plate through a bolt.
The utility model provides a tertiary reservoir and the car that tumbles of tumbling, its beneficial effect lies in:
1. the design of the three-stage tipping air cylinder can provide technical support for the design of a large-angle tipping railway wagon, the conventional loose cargo with a large repose angle and viscosity can be changed into railway transportation from road transportation, the cargo transportation capacity is improved, the transportation cost is greatly reduced, the transportation workload and the risk coefficient are reduced, and the three-stage tipping air cylinder has high practicability and economy;
2. the three-stage tipping air cylinder is provided with an air path interface, has a certain self-locking function in a contraction pressure maintaining state, and can ensure the stability of a tipping box body of a vehicle in the running process, thereby ensuring the running safety of the vehicle;
3. the three-stage tilting air cylinder adopts the Y-shaped sealing ring, so that the key sealing performance and the key overhauling performance of the air cylinder are improved;
4. the piston rod of the three-level tilting air cylinder and the filler are arranged between the middle piston and the outer piston, between the outer piston and the air cylinder outer sleeve, so that the stability of the air cylinder in the extending and rotating process is improved, the integral dustproof and waterproof capacity of the air cylinder is improved, the manufacturing cost is saved, and the maintainability is improved.
Other features and advantages of the present invention will be described in detail in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout the exemplary embodiments of the present invention.
Fig. 1 shows a schematic structural view of a three-stage rollover reservoir according to an embodiment of the present invention.
Fig. 2 illustrates a front view of a piston rod of a three stage rollover reservoir in accordance with an embodiment of the present invention.
Fig. 3 illustrates a left side view of a piston rod of a three stage rollover reservoir in accordance with an embodiment of the present invention.
Fig. 4 shows a front view of a top round pin of a tipper according to an exemplary embodiment of the present disclosure.
Fig. 5 shows a left side view of a roof round pin of a tipper according to an embodiment of the invention.
Fig. 6 illustrates a top view of the anti-loosening tab of a three stage rollover reservoir according to an embodiment of the present invention.
Fig. 7 illustrates a front view of a stop block of a three-level rollover reservoir according to an embodiment of the present invention.
Fig. 8 illustrates a top view of a stop block for a three stage rollover reservoir according to an embodiment of the present invention.
Description of reference numerals:
1. an air cylinder outer sleeve; 2. a sliding bearing; 3. an outer piston; 4. a middle piston; 5. an inner piston; 6. a piston rod; 7. carrying out top turning on a round pin; 8. a first convex disc; 9. a limiting block; 10. a second convex disc; 11. a limiting groove; 12. an anti-loosening sheet; 13. a Y-shaped seal ring; 14. an inflation and exhaust interface; 15. a bushing; 16. pressing and filling the oil cup; 17. a filler; 18. and a nut.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The utility model provides a tertiary reservoir of tumbling, include:
an air cylinder outer sleeve;
the outer piston is inserted into the air cylinder outer sleeve, a first inner step is arranged at the upper part of the outer piston, and a first outer step is arranged at the lower part of the outer piston;
the middle piston is inserted into the outer piston, a sealing cover is arranged at the upper end of the middle piston, a first through hole is formed in the middle of the sealing cover, a first packing groove is formed in the inner wall of the first through hole, and a second outer step is arranged at the lower part of the middle piston;
the inner piston is arranged in the middle piston in a sliding mode;
the lower end of the piston rod is connected with the inner piston, the upper end of the piston rod penetrates through the first through hole, the head of the piston rod is rotatably connected with a carriage of the tipping vehicle, and the upper end of the piston rod is provided with a first pin hole;
the first convex disc is annular and is arranged at the upper part of the air cylinder outer sleeve, the inner periphery of the first convex disc is connected with the outer side wall of the outer piston in a sliding manner, and a second packing groove is formed in the inner periphery of the first convex disc;
the second convex disc is annular and is arranged at the upper part of the outer piston, the inner periphery of the second convex disc is connected with the outer side wall of the middle piston in a sliding way, and a third packing groove is formed in the inner periphery of the second convex disc;
and the third packing groove, the second packing groove and the third packing groove are filled with packing.
Specifically, the piston rod is connected with the tilting box body, when a vehicle charges air to the tilting air cylinder, the thrust of the air cylinder is continuously increased along with the gradual rise of the pressure at the bottom of the air cylinder, when the pressure reaches 500kPa, the air cylinder reaches the maximum tilting thrust, the three-stage piston of the air cylinder is simultaneously pushed out, when a first outer step is contacted with a first convex circular disc, an outer piston is blocked and limited by the first convex circular disc, a middle piston and an inner piston are continuously pushed out, when a second outer step is contacted with the first step, the middle piston is blocked and limited by the outer piston, the inner piston is continuously pushed out at the moment, when the inner piston is stopped in contact with a sealing cover of an inner cavity of the middle piston, the piston rod is completely pushed out, the tilting air cylinder reaches the maximum stroke, the air cylinder is pushed out, and in the moving process of the piston, the filler not only ensures the good guidance of each piston in the contraction and pushing-out process of each piston of the air cylinder, but also improves the dustproof performance of the air cylinder, and can carry out the self-cleaning of the extended piston in the contraction process, the piston is prevented from bringing large-particle magazines into the air cylinder; when the vehicle exhausts air for the tilting air cylinder, the dead weight of the vehicle tilting box body compresses the piston rod, the piston rod drives the inner piston to contract quickly, the inner piston compresses the middle piston, the middle piston compresses the outer piston to contract when reaching the bottom, and the tilting air cylinder contracts completely until the tilting box body falls to the underframe for limitation.
Furthermore, in order to solve the problem that the air cylinder interferes with the bottom of the box body in the tilting and rotating process, the air cylinder occupies a smaller top space in the tilting and rotating process, the piston rod is connected with the vehicle body through a round pin, the head of the piston rod is of an arc structure concentric with the first pin hole, and the arc structure at the head of the piston rod is thinned and optimized due to the fact that the piston rod is of a main stress structure.
Furthermore, the inner piston, the first outer step and the second outer step are provided with C5 chamfers along the periphery, so that a certain amount of lubricating grease can be stored, the air cylinder outer sleeve and the inner piston, and the middle piston and the outer piston are lubricated for a long time and are convenient to assemble.
In one example, the profile height is less than 1100mm when the air cylinder is compressed, the effective piston push-out stroke is greater than 2020mm, and the maximum overhead pressure is greater than 21t when the air pressure is 0.5 MPa.
Optionally, three limiting blocks are uniformly distributed on the lower portion of the inner side wall of the outer piston along the circumference, and the peripheries of the limiting blocks are matched with the inner periphery of the outer piston.
Specifically, when the vehicle exhausts air for the rollover air cylinder, the vehicle rollover box body compresses the three-stage piston by self weight and contracts simultaneously, and the bottom of the middle piston contacts with the limiting block to compress the outer piston to contract.
In an example, three limiting blocks are uniformly distributed on the inner wall of the outer step at the lower part of the outer piston along the circumference, the limiting blocks are of circular arc structures, the circular arc radius is the same as the inner diameter of the outer piston, each limiting block is fastened on the inner wall of the outer piston by three M12 screws, the connection strength of the limiting blocks is guaranteed, the uniform stress of the middle piston when the middle piston drives the outer piston to contract through the limiting blocks is also guaranteed, and the middle piston and the outer piston keep good coaxiality.
Optionally, the outer periphery of the lower portion of the piston rod is provided with threads, the lower side of the inner piston is provided with a nut matched with the threads, and an anti-loosening sheet is arranged between the nut and the inner piston.
Specifically, the inner piston and the piston rod are connected by adopting a bolt-nut structure, a thread is processed at the tail part of the piston rod, the thread penetrates through the inner piston, and the inner piston is fastened by a nut on the lower side of the inner piston.
Optionally, the outer periphery of the first outer step, the outer periphery of the second outer step and the outer periphery of the inner piston are provided with Y-shaped sealing rings.
The sealing ring mounting grooves are formed in the peripheries of the first outer step, the second outer step and the inner piston, the Y-shaped sealing ring is mounted in the mounting groove, the mounting groove is integrally of a thinning structure, the diameter of the lower side is smaller than that of the upper side, the sealing ring is convenient to mount, and the sealing performance and the overhauling performance of the air cylinder are improved.
Optionally, the lower portion of the piston rod is axially provided with a limiting groove, the anti-loosening piece is annular, a protruding portion matched with the limiting groove is arranged on the inner periphery of the anti-loosening piece, a bending portion is arranged on the outer periphery of the anti-loosening piece, and the bending portion can be wrapped on the outer side of the nut through bending.
Specifically, the convex part card of anti-loosening sheet is clamped into the limiting groove, the nut is screwed, the bent part of the anti-loosening sheet is rolled up along the edge of the nut after the nut is screwed, and the anti-loosening sheet is wrapped outside the nut to prevent the piston nut from loosening.
In one example, the width of the restraint slot is 8 x 8 mm.
Optionally, ears are arranged on two sides of the air cylinder outer sleeve, one ear is provided with an air charging and discharging interface, the air charging and discharging interface is communicated with the bottom of the three-stage tipping air cylinder through an air passage, the air passage comprises a first part arranged at the bottom of the air cylinder outer sleeve, a second part arranged on the side wall of the air cylinder outer sleeve and a third part arranged in the ears, and the upper part of the first part is open.
The air cylinder outer sleeve is a casting, the steel wall of the ear is of a thickened structure, the ear strength of the air cylinder is improved, one ear of the air cylinder outer sleeve is provided with an air charging and exhausting interface, the interface can be connected with a threaded pipe and a DN25 flange pipe, the arrangement of a connecting pipeline is reduced, the leakage rate of the pipeline is reduced, and the swing of the connecting pipeline in the process of overturning the air cylinder is avoided.
Furthermore, the steel wall corresponding to the ear part is internally provided with a sectional area of 8.5cm2The air cavity is directly communicated with the bottom of the air cylinder, so that the air charging and discharging speed of the air cylinder is ensured.
Optionally, two bushings are arranged in the first pin hole, an oil storage groove is formed in a gap between the two bushings, and a pressure filling oil cup is arranged on one side of the oil storage groove.
Specifically, two bushings and a pressure filling oil cup are additionally arranged in the first pin hole, an oil storage groove is formed in the middle of the two bushings after the two bushings are pressed in place to store lubricating oil, and the pressure filling oil cup is used for filling oil to supplement consumption.
Optionally, the ear of the air cylinder jacket is provided with a sliding bearing, and the sliding bearing is provided with a lubricating structure.
Concretely, for reducing the wearing and tearing of reservoir overcoat ear in the rotation of tumbling, reduce cylinder rotation resistance, set up with reservoir overcoat ear assorted slide bearing to be equipped with oil storage tank and pressure injection oil cup on slide bearing, can carry out continuous good lubrication to the cylinder ear in the reservoir is rotatory
The utility model also provides a tipping vehicle, including foretell tertiary reservoir of tumbling.
Optionally, a connecting plate is arranged on the lower side of the carriage of the tipper, a fixing hole is formed in the connecting plate, the fixing hole and the first pin hole are connected with a round top car pin in a rotating mode, a limiting piece is arranged on the round top car pin, and the limiting piece is fixed on the connecting plate through a bolt.
Specifically, the limiting piece is welded on the jacking round pin, a long round hole is formed in the limiting piece, the jacking round pin can penetrate into the long round hole of the limiting piece through a bolt and a nut and is fastened on the connecting plate, and abrasion of the jacking round pin is reduced.
Examples
As shown in fig. 1 to 8, the present invention provides a three-stage rollover reservoir, comprising:
an air cylinder outer sleeve 1;
the outer piston 3 is inserted into the air cylinder outer sleeve 1, a first inner step is arranged at the upper part of the outer piston 3, and a first outer step is arranged at the lower part of the outer piston 3;
the middle piston 4 is inserted into the outer piston 3, a sealing cover is arranged at the upper end of the middle piston 4, a first through hole is formed in the middle of the sealing cover, a first packing groove is formed in the inner wall of the first through hole, and a second outer step is arranged at the lower part of the middle piston 4;
an inner piston 5 slidably disposed within the middle piston 4;
the lower end of the piston rod 6 is connected with the inner piston 5, the upper end of the piston rod penetrates through the first through hole, the head of the piston rod 6 is rotatably connected with a carriage of the tipping vehicle, and the upper end of the piston rod 6 is provided with a first pin hole;
the first convex disc 8 is annular and is arranged at the upper part of the air cylinder outer sleeve 1, the inner periphery of the first convex disc 8 is connected with the outer side wall of the outer piston 3 in a sliding manner, and a second packing groove is formed in the inner periphery of the first convex disc 8;
the second convex disc 10 is annular and is arranged at the upper part of the outer piston 3, the inner periphery of the second convex disc 10 is connected with the outer side wall of the middle piston 4 in a sliding way, and a third packing groove is arranged on the inner periphery of the second convex disc 10;
and the third packing groove, the second packing groove and the third packing groove are filled with packing 17.
In this embodiment, three limiting blocks 9 are evenly distributed along the circumference at the lower part of the inner side wall of the outer piston 3, and the outer peripheries of the limiting blocks 9 are matched with the inner periphery of the outer piston 3.
In the present embodiment, a thread is provided on the lower outer periphery of the piston rod 6, a nut 18 that fits the thread is provided on the lower side of the inner piston 5, and the anti-loosening element 12 is provided between the nut 18 and the inner piston 5.
In this embodiment, Y-shaped seal rings 13 are provided on the outer periphery of the first outer step, the outer periphery of the second outer step, and the outer periphery of the inner piston 5.
In this embodiment, the lower portion of the piston rod 6 is axially provided with a limit groove 11, the anti-loosening element 12 is annular, the inner periphery of the anti-loosening element 12 is provided with a protruding portion which is matched with the limit groove 11, the outer periphery of the anti-loosening element 12 is provided with a bending portion, and the bending portion can be wrapped on the outer side of the nut 18 through bending.
In this embodiment, the two sides of the reservoir jacket 1 are provided with ear portions, one of the ear portions is provided with an air charging and discharging port 14, the air charging and discharging port 14 is communicated with the bottom of the three-stage tilting reservoir through an air passage, the air passage comprises a first portion arranged at the bottom of the reservoir jacket 1, a second portion arranged on the side wall of the reservoir jacket 1 and a third portion arranged in the ear portion, and the upper portion of the first portion is open.
In this embodiment, two bushings 15 are provided in the first pin hole, a gap between the two bushings 15 forms an oil reservoir, and a pressure filling cup 16 is provided on one side of the oil reservoir.
In this embodiment, the ear portion of the reservoir jacket 1 is provided with a sliding bearing 2, and the sliding bearing 2 is provided with a lubricating structure.
The utility model also provides a tipping vehicle, including foretell tertiary reservoir of tumbling.
In this embodiment, the carriage downside of tipper is provided with the connecting plate, has seted up the fixed orifices on the connecting plate, and fixed orifices and first pinhole rotate jointly and are connected with a car backing round pin 7, are equipped with spacing piece on the car backing round pin 7, and spacing piece passes through the bolt fastening on the connecting plate.
To sum up, when the three-stage air cylinder provided by the utility model is used, the air charging and discharging port 14 is communicated with the air pump, the air pump blows air to enter the bottom of the air cylinder through the air charging and discharging port 14 and the air passage, the three-stage piston of the air cylinder is simultaneously pushed out, when the boss of the outer piston 3 is contacted with the first convex disc 8, the outer piston 3 is blocked and limited by the first convex disc 8, the middle piston 4 and the inner piston 5 are continuously pushed out, when the second stage of the middle piston 4 is contacted with the first inner stage of the outer piston 3, the middle piston 4 is blocked and limited by the outer piston 3, the inner piston 5 is continuously pushed out at the moment, when the inner piston 5 is contacted and stopped with the sealing cover of the inner cavity of the middle piston 4, the piston rod 6 is completely pushed out, the tilting air cylinder reaches the maximum stroke, the air cylinder is pushed out, the vehicle body turns over with the top vehicle round pin 7 as the circle center during the ejection process, when the tilting air cylinder exhausts air, the vehicle tilting box body deadweight compresses the piston rod 6, the piston rod 6 drives the inner piston 5 to rapidly contract, the inner piston 5 compresses the middle piston 4 through the limiting block 9 to shrink, the middle piston 4 compresses the outer piston 3 to shrink when reaching the bottom, until the tilting box body falls to the underframe for limitation, and the tilting air cylinder resets.
While various embodiments of the present invention have been described above, the above description is intended to be illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A three-stage tipping reservoir, comprising:
an air cylinder outer sleeve;
the outer piston is inserted into the air cylinder outer sleeve, a first inner step is arranged at the upper part of the outer piston, and a first outer step is arranged at the lower part of the outer piston;
the middle piston is inserted into the outer piston, a sealing cover is arranged at the upper end of the middle piston, a first through hole is formed in the middle of the sealing cover, a first packing groove is formed in the inner wall of the first through hole, and a second outer step is arranged at the lower part of the middle piston;
the inner piston is arranged in the middle piston in a sliding mode;
the lower end of the piston rod is connected with the inner piston, the upper end of the piston rod penetrates through the first through hole, the head of the piston rod is rotatably connected with a carriage of the tipping vehicle, and the upper end of the piston rod is provided with a first pin hole;
the first convex disc is annular and is arranged at the upper part of the air cylinder outer sleeve, the inner periphery of the first convex disc is in sliding connection with the outer side wall of the outer piston, and a second packing groove is formed in the inner periphery of the first convex disc;
the second convex disc is annular and is arranged at the upper part of the outer piston, the inner periphery of the second convex disc is in sliding connection with the outer side wall of the middle piston, and a third packing groove is formed in the inner periphery of the second convex disc;
and fillers are filled in the third filler groove, the second filler groove and the third filler groove.
2. The three-stage tilting air cylinder as claimed in claim 1, wherein three limiting blocks are uniformly distributed on the lower part of the inner side wall of the outer piston along the circumference, and the outer peripheries of the limiting blocks are matched with the inner periphery of the outer piston.
3. The tertiary tipping air cylinder as claimed in claim 1, wherein the piston rod is provided with a thread on the lower periphery, the lower side of the inner piston is provided with a nut matched with the thread, and an anti-loosening sheet is arranged between the nut and the inner piston.
4. The three stage rollover reservoir according to claim 1, wherein Y-ring seals are disposed on the outer periphery of the first outer step, the outer periphery of the second outer step, and the outer periphery of the inner piston.
5. The three-stage tilting air cylinder according to claim 3, wherein the lower portion of the piston rod is axially provided with a limiting groove, the anti-loosening plate is annular, the inner periphery of the anti-loosening plate is provided with a protruding portion matched with the limiting groove, the outer periphery of the anti-loosening plate is provided with a bent portion, and the bent portion can be wrapped on the outer side of the nut through bending.
6. The three-stage tipping air cylinder as claimed in claim 1, wherein the air cylinder jacket is provided with ear parts at two sides, one of the ear parts is provided with an air charging and discharging port which is communicated with the bottom of the three-stage tipping air cylinder through an air passage, the air passage comprises a first part arranged at the bottom of the air cylinder jacket (1), a second part arranged on the side wall of the air cylinder jacket and a third part arranged in the ear part, and the upper part of the first part is open.
7. The tertiary tipping air cylinder as claimed in claim 1, wherein two bushings are provided in the first pin hole, a gap between the two bushings forms an oil storage tank, and a pressure filling cup is provided on one side of the oil storage tank.
8. The three-stage tilting air cylinder according to claim 1, wherein the ear portion of the air cylinder outer sleeve is provided with a sliding bearing, and the sliding bearing is provided with a lubricating structure.
9. A dump truck comprising a three stage rollover reservoir as set forth in any of claims 1-8.
10. The dumper according to claim 9, wherein a connecting plate is arranged on the lower side of the carriage of the dumper, a fixing hole is formed in the connecting plate, the fixing hole and the first pin hole are connected with a top round pin in a rotating mode together, a limiting piece is arranged on the top round pin, and the limiting piece is fixed on the connecting plate through a bolt.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022920415.4U CN214450525U (en) | 2020-12-09 | 2020-12-09 | Three-stage tipping air cylinder and tipping vehicle |
| PCT/CN2021/104983 WO2022121299A1 (en) | 2020-12-09 | 2021-07-07 | Three-stage tilting air cylinder and tilting vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022920415.4U CN214450525U (en) | 2020-12-09 | 2020-12-09 | Three-stage tipping air cylinder and tipping vehicle |
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| Publication Number | Publication Date |
|---|---|
| CN214450525U true CN214450525U (en) | 2021-10-22 |
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| CN202022920415.4U Active CN214450525U (en) | 2020-12-09 | 2020-12-09 | Three-stage tipping air cylinder and tipping vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112477725A (en) * | 2020-12-09 | 2021-03-12 | 中车太原机车车辆有限公司 | Three-stage tipping air cylinder and tipping vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112477725A (en) * | 2020-12-09 | 2021-03-12 | 中车太原机车车辆有限公司 | Three-stage tipping air cylinder and tipping vehicle |
| CN112477725B (en) * | 2020-12-09 | 2024-07-02 | 中车太原机车车辆有限公司 | Three-stage tipping air cylinder and tipping vehicle |
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