阅读说明：本技术 一种用于自卸车的油气悬架机构 (Hydro-pneumatic suspension mechanism for dump truck ) 是由 董小洋 殷玉明 于 2019-09-04 设计创作，主要内容包括：一种用于自卸车的油气悬架机构,包括前桥、弹簧套杆和连接装置,所述前桥的两端均活动安装有车轮,所述前桥外表面的两侧均通过连接装置与弹簧套杆活动连接,所述弹簧套杆远离连接装置的一端与减震装置活动连接,所述减震装置顶部的一侧活动连接有支架,所述支架的底部活动连接有断面纵梁,所述断面纵梁的底部固定连接有缓冲块,所述连接装置的一侧活动连接有横向推力杆。本发明通过弹簧套杆的设置,能够辅助减震装置削弱自卸车装载时所收到了冲击力,提高自卸车行驶时的稳定性,通过连接装置的设置,起到了便于安装弹簧套杆和减震装置的作用,通过缓冲块的设置,能够防止自卸车体过度下压。(The utility model provides an oil gas suspension mechanism for tipper, includes front axle, spring loop pole and connecting device, the equal movable mounting in both ends of front axle has the wheel, the both sides of front axle surface all are through connecting device and spring loop pole swing joint, the one end and the damping device swing joint that connecting device was kept away from to the spring loop pole, one side swing joint at damping device top has the support, the bottom swing joint of support has the section longeron, the bottom fixedly connected with buffer block of section longeron, one side swing joint of connecting device has the lateral thrust pole. According to the invention, through the arrangement of the spring sleeve rod, the shock absorption device can be assisted to weaken the impact force received by the dump truck during loading, the running stability of the dump truck is improved, through the arrangement of the connecting device, the effect of conveniently installing the spring sleeve rod and the shock absorption device is achieved, and through the arrangement of the buffer block, the dump truck body can be prevented from being excessively pressed down.)

1. The utility model provides an oil gas suspension mechanism for tipper, its characterized in that, the mechanism includes front axle, spring loop pole and connecting device, the equal movable mounting in both ends of front axle has the wheel, the both sides of front axle surface all are through connecting device and spring loop pole swing joint, the one end and the damping device swing joint that connecting device was kept away from to the spring loop pole, one side swing joint at damping device top has the support, the bottom swing joint of support has the section longeron, the bottom fixedly connected with buffer block of section longeron.

2. The hydro-pneumatic suspension mechanism for the dump truck as set forth in claim 1, wherein a lateral thrust rod is movably connected to one side of the connecting device, and an end of the lateral thrust rod away from the connecting device is movably connected to the cross-sectional side member.

3. The hydro-pneumatic suspension mechanism for the dump truck according to claim 2, wherein a longitudinal thrust rod is movably connected to the other side of the connecting device, and a connecting member is provided at one end of the longitudinal thrust rod.

4. The hydro-pneumatic suspension mechanism for the dump truck as claimed in any one of claims 1 to 3, wherein the connecting device comprises a lower arc plate and an upper arc plate, wherein shaft seats are fixedly connected to the left and right sides of the upper surface of the lower arc plate, and the middle parts of the shaft seats are movably connected with the movable base through rotating shafts.

5. The oil-gas suspension mechanism for the dump truck as claimed in claim 4, wherein a shaft groove is formed in the middle of the upper surface of the lower arc plate, insertion holes are formed in both sides of the shaft groove, a U-shaped snap ring is inserted into the insertion holes, an upper arc plate is movably connected to the top of the U-shaped snap ring, and fastening nuts are connected to both ends of the U-shaped snap ring through threads.

6. The oil-gas suspension mechanism for the dumper according to any one of claims 1-3, wherein the damping device comprises a cylinder, a piston rod and a floating piston, a first hydraulic cavity and a second hydraulic cavity are arranged inside the cylinder, the piston rod is inserted in the middle of the cylinder, the floating piston is arranged below the inside of the cylinder, and an air cavity is arranged below the floating piston.

7. The hydro-pneumatic suspension mechanism for the dump truck as claimed in claim 6, wherein a damping hole is formed in the surface of the piston rod, and a check valve is arranged below the damping hole.

8. The oil-gas suspension mechanism for the dump truck as claimed in any one of claims 1 to 3, wherein the spring loop bar comprises a loop bar and a telescopic bar, the outer surface of the loop bar is sleeved with the buffer spring, and the telescopic bar is inserted into the loop bar.

9. The hydro-pneumatic suspension mechanism for the dump truck according to any one of claims 1 to 3, wherein the number of the shock absorbing devices is four, and the four shock absorbing devices are symmetrically arranged by taking a vertical center line of the front axle as a symmetry axis.

Technical Field

The invention relates to the technical field of suspension mechanisms, in particular to an oil-gas suspension mechanism for a dump truck.

Background

The traditional dump truck has the disadvantages of poor driving road condition, complex and changeable driving condition, great change of the posture of the whole truck in the driving process, damage to the comfort of the dump truck, reduction of the operation stability of the dump truck, and potential hazards of dumping.

Disclosure of Invention

In order to overcome the defects of poor comfort and poor control stability of the existing dump truck, the invention provides the hydro-pneumatic suspension mechanism for the dump truck, the elasticity characteristic of the hydro-pneumatic suspension mechanism greatly improves the comfort and the control stability of the whole truck, the impact during loading can be reduced, meanwhile, the truck can better adapt to various road conditions, the rollover is effectively prevented, and the hydro-pneumatic suspension mechanism has good application prospect

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides an oil gas suspension mechanism for tipper, includes front axle, spring loop pole and connecting device, the equal movable mounting in both ends of front axle has the wheel, the both sides of front axle surface all are through connecting device and spring loop pole swing joint, the one end and the damping device swing joint that connecting device was kept away from to the spring loop pole, one side swing joint at damping device top has the support, the bottom swing joint of support has the section longeron, the bottom fixedly connected with buffer block of section longeron.

Furthermore, one side of the connecting device is movably connected with a transverse thrust rod, and one end, far away from the connecting device, of the transverse thrust rod is movably connected with the section longitudinal beam.

Still further, the other side of the connecting device is movably connected with a longitudinal thrust rod, and one end of the longitudinal thrust rod is provided with a connecting piece.

Furthermore, the connecting device comprises a lower arc plate and an upper arc plate, wherein shaft seats are fixedly connected to the left side and the right side of the upper surface of the lower arc plate, and the middle parts of the shaft seats are movably connected with the movable base through rotating shafts.

Preferably, the middle part of the upper surface of the lower arc plate is provided with an axial groove, the two sides of the axial groove are provided with insertion holes, the insertion holes are internally inserted with a U-shaped clamping ring, the top of the U-shaped clamping ring is movably connected with the upper arc plate, and the two ends of the U-shaped clamping ring are in threaded connection with fastening nuts.

Preferably, damping device includes cylinder, piston rod and floating piston, the inside of cylinder is provided with first hydraulic pressure chamber and second hydraulic pressure chamber, the middle part of cylinder is pegged graft and is had the piston rod, the inside below of cylinder is provided with floating piston, floating piston's below is provided with the air cavity.

Preferably, the surface of the piston rod is provided with a damping hole, and a one-way valve is arranged below the damping hole.

Preferably, the spring loop bar comprises a loop bar and a telescopic rod, the outer surface of the loop bar is sleeved with the buffer spring, and the telescopic rod is inserted in the loop bar.

Preferably, the number of the shock absorption devices is four, and the four shock absorption devices are symmetrically arranged by taking a vertical central line of the front axle as a symmetry axis.

The invention has the following beneficial effects:

1. through the arrangement of the damping device, when the dump truck runs on the road surface, the fluctuation of the road surface is transmitted to the damping device through the wheels, so that the piston rod, other piston components and the floating piston do reciprocating motion in the cylinder barrel, the load is increased, when the damping device is in a compression stroke, the piston rod and the piston components are pressed into the cylinder barrel, the volume of the first hydraulic cavity is reduced, the volume of the second hydraulic cavity is increased, the reduced volume of the second hydraulic cavity is larger than the increased volume of the first hydraulic cavity, one part of hydraulic oil in the second hydraulic cavity flows into the first hydraulic cavity through the check valve and the damping hole, the other part pushes the floating piston to move downwards, the volume of the air cavity is reduced, the air pressure is increased, when the air pressure in the air cavity is increased to be balanced with the external load, the piston rod and the piston components stop moving, because the check valve and the damping hole are opened simultaneously during the compression, the velocity of flow is slower, the damping force that produces is less, the resistance of piston rod and piston assembly downstream is mainly the elastic force that compressed gas produced, in order to alleviate the impact, thereby travelling comfort and operating stability when whole car is gone have been improved greatly, the load reduces, damping device is when stretching the stroke, piston rod and piston assembly stretch out the cylinder, second hydraulic chamber oil pressure reduces, first hydraulic chamber fluid flows into second hydraulic chamber through the damping hole, on the other hand high-pressure gas in the gas chamber promotes the floating piston and upwards moves, the gas chamber volume increases, atmospheric pressure reduces, when atmospheric pressure in the gas chamber drops to and balances with external load, piston rod and piston assembly stop motion, when stretching the stroke, the check valve closes, the velocity of flow that fluid flowed through the damping hole accelerates, the damping force increases, so that the damping vibration rapidly.

2. Through the setting of spring loop pole, can assist damping device to weaken the impact force that has received when the tipper loads, stability when improving the tipper and traveling, through connecting device's setting, played the effect of being convenient for install spring loop pole and damping device, through the setting of buffer block, can prevent that the tipper automobile body from excessively pushing down.

Drawings

FIG. 1 is a schematic structural diagram of an oil-gas suspension mechanism for a dump truck according to the present invention;

FIG. 2 is a left side view structural schematic diagram of an oil gas suspension mechanism for a dump truck according to the present invention;

FIG. 3 is a schematic diagram of the principle of the damping device of the hydro-pneumatic suspension mechanism for the dump truck according to the present invention;

fig. 4 is a schematic structural view of a lower arc plate of the hydro-pneumatic suspension mechanism for the dump truck.

In the figure: 1. a front axle; 2. a spring loop bar; 201. a loop bar; 202. a telescopic rod; 203. a buffer spring; 3. a connecting device; 301. a lower arc plate; 302. an upper arc plate; 303. a shaft seat; 304. a movable base; 305. a U-shaped snap ring; 4. a wheel; 5. a damping device; 501. a cylinder barrel; 502. a piston rod; 503. a floating piston; 504. a first hydraulic chamber; 505. a second hydraulic chamber; 506. an air cavity; 507. a damping hole; 508. a one-way valve; 6. a support; 7. a section stringer; 8. a buffer block; 9. a lateral thrust rod; 10. a longitudinal thrust rod; 11. a connecting member.

Detailed Description

The invention is further described below with reference to the accompanying drawings.

Referring to fig. 1-4, an oil gas suspension mechanism for a dump truck comprises a front axle 1, a spring loop bar 2 and a connecting device 3, wherein wheels 4 are movably mounted at both ends of the front axle 1, both sides of the outer surface of the front axle 1 are movably connected with the spring loop bar 2 through the connecting device 3, one end of the spring loop bar 2, which is far away from the connecting device 3, is movably connected with a damping device 5, one side of the top of the damping device 5 is movably connected with a bracket 6, the bottom of the bracket 6 is movably connected with a section longitudinal beam 7, the bottom of the section longitudinal beam 7 is fixedly connected with a buffer block 8, through the arrangement of the buffer block 8, the dump truck body can be prevented from being excessively pressed downwards, one side of the connecting device 3 is movably connected with a transverse thrust rod 9, one end of the transverse thrust rod 9, which is far away from the connecting device 3, is movably connected, one end of the longitudinal thrust rod 10 is provided with a connecting piece 11, the connecting device 3 comprises a lower arc plate 301 and an upper arc plate 302, the left side and the right side of the upper surface of the lower arc plate 301 are fixedly connected with a shaft seat 303, the middle part of the shaft seat 303 is movably connected with a movable base 304 through a rotating shaft, the middle part of the upper surface of the lower arc plate 301 is provided with a shaft groove, two sides of the shaft groove are provided with jacks, a U-shaped snap ring 305 is inserted into the jacks, the top of the U-shaped snap ring 305 is movably connected with the upper arc plate 302, two ends of the U-shaped snap ring 305 are both in threaded connection with fastening nuts, through the arrangement of the connecting device 3, the effect of conveniently installing the spring sleeve rod 2 and the damping device 5 is achieved, the damping device 5 comprises a cylinder 501, a piston rod 502 and a floating piston 503, a first hydraulic cavity 504 and a second hydraulic cavity 505 are arranged inside the cylinder 501, a piston rod 502 is inserted into, an air cavity 506 is arranged below the floating piston 503, a damping hole 507 is formed in the surface of the piston rod 502, and a one-way valve 508 is arranged below the damping hole 507;

through the arrangement of the damping device 5, when the dump truck runs on the road surface, the undulation of the road surface is transmitted to the damping device 5 through wheels, so that the piston rod 502 and other piston assemblies and the floating piston 503 do reciprocating motion in the cylinder 501, the load is increased, when the damping device 5 is in a compression stroke, the piston rod 502 and the piston assemblies are pressed into the cylinder 501, the volume of the first hydraulic cavity 504 is reduced, the volume of the second hydraulic cavity 505 is increased, the reduced volume of the second hydraulic cavity 505 is larger than the increased volume of the first hydraulic cavity 504, one part of hydraulic oil in the second hydraulic cavity 505 flows into the first hydraulic cavity 504 through the check valve 508 and the damping hole 507, the other part pushes the floating piston 503 to move downwards, the volume of the air cavity 506 is reduced, the air pressure is increased, when the pressure of the air cavity 506 is increased to be balanced with the external load, the piston rod 502 and the piston assemblies stop moving, and the check valve 508 and the damping hole 507 are opened, the flow area of the oil flowing through is large, the flow speed is slow, the generated damping force is small, the resistance of the piston rod 502 and the piston assembly moving downwards is mainly the elastic force generated by the compressed gas to ease the impact, thereby greatly improving the comfort and the operation stability when the whole vehicle runs, reducing the load, when the damping device 5 is in the extension stroke, the piston rod 502 and the piston component extend out of the cylinder 501, the oil pressure of the second hydraulic cavity 505 is reduced, the oil in the first hydraulic cavity 504 flows into the second hydraulic cavity 505 through the damping hole, on the other hand, the high-pressure gas in the air cavity 506 pushes the floating piston 503 to move upwards, the volume of the air cavity is increased, the air pressure is reduced, when the air pressure in the air cavity is reduced to be balanced with the external load, the piston rod 502 and the piston assembly stop moving, and during the extension stroke, the one-way valve 508 is closed, the flow rate of oil flowing through the damping holes 507 is accelerated, and the damping force is increased so as to quickly attenuate vibration;

spring loop pole 2 includes loop bar 201 and telescopic link 202, buffer spring 203 has been cup jointed to the surface of loop bar 201, the inside of loop bar 201 is pegged graft and is had telescopic link 202, setting through spring loop pole 2, the impact force that has received when can assisting damping device 5 to weaken the tipper and load, stability when improving the tipper and traveling, damping device 5's quantity is four, and the perpendicular central line that four damping device 5 used front axle 1 is the symmetry axis and is the symmetry setting, damping device 5 sets up both sides around front axle 1, the received topography when powerful buffering tipper load, very big promotion the travelling comfort when tipper drives simultaneously can various complicacies.

When the oil-gas suspension mechanism for the dump truck is used, through the arrangement of the damping device 5, when the dump truck runs on a road surface, the undulation of the road surface is transmitted to the damping device 5 through wheels, so that the piston rod 502 and other piston components and the floating piston 503 do reciprocating motion in the cylinder 501, the load is increased, when the damping device 5 is in a compression stroke, the piston rod 502 and the piston components are pressed into the cylinder 501, the volume of the first hydraulic cavity 504 is reduced, the volume of the second hydraulic cavity 505 is increased, the reduced volume of the second hydraulic cavity 505 is larger than the increased volume of the first hydraulic cavity 504, one part of hydraulic oil in the second hydraulic cavity 505 flows into the first hydraulic cavity 504 through the check valve 508 and the damping hole 507, the other part pushes the floating piston 503 to move downwards, the volume of the air cavity 506 is reduced, the air pressure is increased, when the air pressure in the air cavity 506 is increased to be balanced with an external load, the piston rod 502 and the, because the check valve 508 and the damping hole 507 are opened simultaneously during the compression stroke, the flow area through which the oil flows is large, the flow rate is slow, the generated damping force is small, the resistance of the downward movement of the piston rod 502 and the piston assembly is mainly the elastic force generated by the compressed gas to mitigate the impact, thereby greatly improving the comfort and the operation stability during the running of the whole vehicle, the load is reduced, when the shock absorption device 5 is in the extension stroke, the piston rod 502 and the piston assembly extend out of the cylinder 501, the oil pressure of the second hydraulic chamber 505 is reduced, the oil in the first hydraulic chamber 504 flows into the second hydraulic chamber 505 through the damping hole, on the other hand, the high-pressure gas in the air chamber 506 pushes the floating piston 503 to move upwards, the volume of the air chamber is increased, the air pressure is reduced, when the air pressure in the air chamber is reduced to be balanced with the external load, the piston rod 502 and the piston assembly stop moving, during the extension stroke, damping force increases to the rapid damping vibration, through the setting of spring loop pole 2, can assist damping device 5 to weaken the tipper impact force that has received when loading, stability when improving the tipper and traveling, through connecting device 3's setting, played the effect of being convenient for install spring loop pole 2 and damping device 5, through the setting of buffer block 8, can prevent that the tipper automobile body from excessively pushing down.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the use of the verb "comprise a" to define an element does not exclude the presence of another, same element in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.