CN211969581U

CN211969581U - Hydraulic oil cylinder type chassis

Info

Publication number: CN211969581U
Application number: CN202020085127.9U
Authority: CN
Inventors: 夏朝伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-15
Filing date: 2020-01-15
Publication date: 2020-11-20
Anticipated expiration: 2030-01-15

Abstract

The utility model belongs to the technical field of the automotive technology and specifically relates to a hydraulic pressure hydro-cylinder formula chassis is related to, including automobile beam, the automobile beam inboard is provided with big hydro-cylinder, there is little hydro-cylinder big hydro-cylinder lower extreme both sides through the bolt fastening, the inside slidable mounting of little hydro-cylinder has the piston rod, the piston rod is through round pin axle and welding the fixing base of automobile beam lower extreme is fixed together, the inside slidable mounting of big hydro-cylinder has the oil cylinder lid, the oil cylinder lid with it has the sealing washer to inlay on the big hydro-cylinder inner wall contact surface, the oil cylinder lid with space intussuseption between the bottom has the medium oil in the. Has the advantages that: hydraulic chassis shock attenuation is effectual, provides the hydraulic oil of high density through hydraulic circuit and supports, can alleviate the pressure that the tire bore, alleviates tire wear, reduces fuel consumption, and hydraulic chassis height can be adjusted according to the goods, and pressure in the big hydro-cylinder is controllable, can automatic pressure release when pressure is too big, can avoid hydraulic chassis to damage.

Description

Hydraulic oil cylinder type chassis

Technical Field

The utility model belongs to the technical field of the automotive technology and specifically relates to a hydraulic cylinder formula chassis is related to.

Background

The existing automobile chassis is welded by directly utilizing steel materials, and a carriage hopper is directly fixed on the chassis, so that the chassis has poor damping capacity, is easy to damage after bearing heavy objects, and easily causes traffic accidents when goods swing during driving when the load is large and the goods are high.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a hydraulic cylinder chassis for solving the above problems.

The technical scheme of the utility model is realized like this:

the hydraulic oil cylinder type chassis comprises an automobile beam, wherein a large oil cylinder is arranged on the inner side of the automobile beam, small oil cylinders are fixed on two sides of the lower end of the large oil cylinder through bolts, a piston rod is slidably mounted in the small oil cylinder, the piston rod is fixed with a fixing seat welded on the lower end of the automobile beam through a pin shaft, an oil cylinder cover is slidably mounted in the large oil cylinder, a sealing ring is embedded on the contact surface of the oil cylinder cover and the inner wall of the large oil cylinder, medium oil is filled in a space between the oil cylinder cover and the bottom in the large oil cylinder, a compression spring is vertically placed in the medium oil, a bearing chassis is fixed at the upper end of the oil cylinder cover through bolts, a high-pressure liquid supplementing pipe is fixed on the side wall of the lower end of the large oil cylinder through threads, the end of the high-pressure liquid supplementing, and a pressure reducing valve is fixed on the lower side wall of the large oil cylinder through threads and is connected to the inside of the oil tank through a low-pressure liquid return pipe.

Furthermore, the number of the large oil cylinders is at least one, the large oil cylinders are communicated through a pipeline, and all the small oil cylinders are communicated to the bottom in the large oil cylinder through a high-pressure oil pipe.

Furthermore, the number of the compression springs is four to eight, all the compression springs are distributed in the large oil cylinder in an annular array mode, and one end of each compression spring is fixed to the lower surface of the oil cylinder cover.

Furthermore, a check valve is installed on the high-pressure liquid supplementing pipe through threads.

Furthermore, the outer wall of the piston rod, which is in contact with the inner wall of the small oil cylinder, is embedded with the sealing ring.

Furthermore, the height of the large oil cylinder is not more than that of the automobile girder, and the bearing chassis is positioned above the automobile girder.

Furthermore, a sealing cover is fixed on the upper surface of the large oil cylinder through a bolt, and a through hole convenient for the oil cylinder cover to pass through is formed in the center of the sealing cover.

Furthermore, an adjusting valve is arranged on one side of the pressure reducing valve, the adjusting valve is fixed on the side wall of the large oil cylinder through threads, and the adjusting valve is connected to the inside of the oil tank through the low-pressure liquid return pipe.

Furthermore, a pressure sensor is installed on the side wall of the large oil cylinder through threads.

Furthermore, a filter is fixed at one end of the high-pressure liquid supplementing pipe extending into the oil tank.

By adopting the technical scheme, the beneficial effects of the utility model are that: hydraulic chassis shock attenuation is effectual, provides the hydraulic oil of high density through hydraulic circuit and supports, can alleviate the pressure that the tire bore, alleviates tire wear, reduces fuel consumption, and hydraulic chassis height can be adjusted according to the goods, and pressure in the big hydro-cylinder is controllable, can automatic pressure release when pressure is too big, can avoid hydraulic chassis to damage.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a top view of the present invention;

fig. 2 is a front sectional view of the present invention;

fig. 3 is a cross-sectional view of the small oil cylinder of the present invention.

The reference numerals are explained below:

1. a large oil cylinder; 2. a small oil cylinder; 3. a piston rod; 4. a vehicle frame; 5. a compression spring; 6. a medium oil; 7. a seal ring; 8. a fixed seat; 9. a low-pressure liquid return pipe; 10. an oil cylinder cover; 11. a load-bearing chassis; 12. A pressure reducing valve; 13. a one-way valve; 14. a gear oil pump; 15. an oil tank; 16. a high-pressure liquid supplementing pipe; 17. adjusting a valve; 18. a pressure sensor; 19. sealing the cover; 20. a filter.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-3, a hydraulic oil cylinder type chassis comprises an automobile frame 4, a large oil cylinder 1 is arranged inside the automobile frame 4, small oil cylinders 2 are fixed on two sides of the lower end of the large oil cylinder 1 through bolts, piston rods 3 are slidably mounted inside the small oil cylinders 2, the piston rods 3 are fixed together with a fixing seat 8 welded on the lower end of the automobile frame 4 through pin shafts, an oil cylinder cover 10 is slidably mounted inside the large oil cylinder 1, a sealing ring 7 is embedded on the contact surface of the oil cylinder cover 10 and the inner wall of the large oil cylinder 1, the sealing effect is improved, pressure relief and oil leakage are avoided, a medium oil 6 is filled in a space between the oil cylinder cover 10 and the inner bottom of the large oil cylinder 1, a compression spring 5 is vertically placed in the medium oil 6, the compression spring 5 can provide elastic support, the supporting force is improved, a bearing chassis 11 is fixed on, utilize hydraulic oil to support, there is high-pressure fluid infusion pipe 16 through the threaded fastening on the 1 lower extreme lateral wall of big hydro-cylinder, 16 tip of high-pressure fluid infusion pipe pass through the screw thread and gear oil pump 14 fixed together, gear oil pump 14 has oil tank 15 through the pipe connection, has relief pressure valve 12 through the threaded fastening on the lateral wall under 1 big hydro-cylinder, opens the oil extraction pressure release automatically when pressure is too big, relief pressure valve 12 is connected to inside the oil tank 15 through low pressure liquid return pipe 9.

In the embodiment, at least one large oil cylinder 1 is provided, the large oil cylinders 1 are communicated through a pipeline, the number of the large oil cylinders 1 is selected according to the length of a vehicle frame, the bearing capacity can be increased by increasing the number of the large oil cylinders 1, and all the small oil cylinders 2 are communicated to the bottom in the large oil cylinders 1 through high-pressure oil pipes to realize the communication of oil.

In the embodiment, the number of the compression springs 5 is four to eight, all the compression springs 5 are distributed in the large oil cylinder 1 in an annular array mode, and one end of each compression spring 5 is fixed to the lower surface of the oil cylinder cover 10, so that the bearing capacity can be improved.

In this embodiment, the check valve 13 is installed on the high-pressure fluid supplementing pipe 16 through threads, so that the oil is prevented from flowing backwards.

In this embodiment, inlay on the outer wall of piston rod 3 and the contact of 2 inner walls of little hydro-cylinders and have sealing washer 7, improve sealed effect, avoid pressure to reveal.

In the embodiment, the height of the large oil cylinder 1 does not exceed the height of the automobile beam 4, and the bearing chassis 11 is positioned above the automobile beam 4.

In this embodiment, the upper surface of the large oil cylinder 1 is fixed with the sealing cover 19 through a bolt, and the center of the sealing cover 19 is formed with a through hole which is convenient for the oil cylinder cover 10 to pass through, so that the oil cylinder cover 10 is prevented from sliding out of the large oil cylinder 1.

In this embodiment, a regulating valve 17 is arranged on one side of the pressure reducing valve 12, the regulating valve 17 is fixed on the side wall of the large oil cylinder 1 through threads, the regulating valve 17 is connected to the inside of the oil tank 15 through a low-pressure liquid return pipe 9, the maximum bearing pressure of the regulating valve 17 is greater than the maximum bearing pressure of the pressure reducing valve 12, and when the pressure reducing valve 12 fails, decompression can be performed through the regulating valve 17, so that double safety is provided.

In this embodiment, install pressure sensor 18 through the screw thread on the big hydro-cylinder 1 lateral wall, can monitor big hydro-cylinder 1 internal pressure, pressure sensor 18 is connected with the on-vehicle controller electricity of car, and the driver of being convenient for knows the big hydro-cylinder 1 internal pressure condition.

In this embodiment, the filter 20 is fixed to the one end that high pressure fluid infusion pipe 16 stretched into oil tank 15, filters fluid, avoids blockking up the pipeline.

The utility model discloses a theory of operation does: when the device is used, the device is arranged on a frame of an automobile, a carriage is arranged on a bearing chassis 11, when the automobile is low in bearing, the bearing chassis 11 is low in stress, the pressure of the medium oil 6 is low, so that the gear oil pump 14 is not started, when the automobile is high in bearing, the bearing chassis 11 is high in stress, the pressure of the medium oil 6 in the large oil cylinder 1 is increased, after the gear oil pump 14 is started, the gear oil pump 14 pumps oil in the oil tank 15 into the large oil cylinder 1 through the high-pressure liquid supplementing pipe 16, the capacity of the medium oil 6 in the large oil cylinder 1 is increased, after the capacity of the medium oil 6 is increased, the oil is compressed under the combined action of the pressure borne by the bearing chassis 11, the density of the medium oil 6 is increased, the relative bearing capacity is increased after the density of the medium oil 6 is increased, strong support can be provided, when the pressure of the medium oil 6 exceeds a set pressure value, the medium oil 6 enters the low-pressure liquid returning pipe, then the oil flows back to the inside of the oil tank 15 through the low-pressure liquid return pipe 9 to be decompressed, and the damage caused by overlarge pressure inside the large oil cylinder 1 is avoided.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Hydraulic pressure hydro-cylinder formula chassis, its characterized in that: including automobile frame (4), automobile frame (4) inboard is provided with big hydro-cylinder (1), big hydro-cylinder (1) lower extreme both sides are fixed with little hydro-cylinder (2) through the bolt, little hydro-cylinder (2) inside slidable mounting has piston rod (3), piston rod (3) through round pin axle and welding fixing base (8) of automobile frame (4) lower extreme are fixed together, big hydro-cylinder (1) inside slidable mounting has hydro-cylinder lid (10), hydro-cylinder lid (10) with it has sealing washer (7) to inlay on big hydro-cylinder (1) inner wall contact surface, the space intussuseption between bottom has medium oil (6) in hydro-cylinder lid (10) with big hydro-cylinder (1), compression spring (5) have been placed perpendicularly in medium oil (6), there is bearing chassis (11) on hydro-cylinder lid (10) through the bolt fastening, there is high pressure fluid infusion pipe (16) on big hydro-cylinder (1) lower extreme lateral wall through the screw thread fastening, high-pressure fluid infusion pipe (16) tip is together fixed through screw thread and gear oil pump (14), gear oil pump (14) have oil tank (15) through the pipe connection, there are relief pressure valve (12) through the threaded fixation under big hydro-cylinder (1) on the lateral wall, relief pressure valve (12) are connected to through low pressure liquid return pipe (9) inside oil tank (15).

2. The hydraulic cylinder chassis of claim 1, wherein: the number of the large oil cylinders (1) is at least one, the large oil cylinders (1) are communicated through a pipeline, and all the small oil cylinders (2) are communicated to the inner bottom of the large oil cylinder (1) through high-pressure oil pipes.

3. The hydraulic cylinder chassis of claim 1, wherein: the number of the compression springs (5) is four to eight, all the compression springs (5) are distributed in the large oil cylinder (1) in an annular array mode, and one end of each compression spring (5) is fixed to the lower surface of the oil cylinder cover (10).

4. The hydraulic cylinder chassis of claim 1, wherein: and the high-pressure liquid supplementing pipe (16) is provided with a one-way valve (13) through threads.

5. The hydraulic cylinder chassis of claim 1, wherein: the outer wall of the piston rod (3) in contact with the inner wall of the small oil cylinder (2) is embedded with the sealing ring (7).

6. The hydraulic cylinder chassis of claim 1, wherein: the height of the large oil cylinder (1) is not more than that of the automobile beam (4), and the bearing chassis (11) is located above the automobile beam (4).

7. The hydraulic cylinder chassis of claim 1, wherein: big hydro-cylinder (1) upper surface is fixed with closing cap (19) through the bolt, closing cap (19) central shaping has the through-hole of being convenient for oil cylinder lid (10) pass through.

8. The hydraulic cylinder chassis of claim 1, wherein: reducing valve (12) one side is provided with governing valve (17), governing valve (17) pass through the threaded fixation on big hydro-cylinder (1) lateral wall, governing valve (17) pass through low pressure liquid return pipe (9) are connected to inside oil tank (15).

9. The hydraulic cylinder chassis of claim 1, wherein: and a pressure sensor (18) is arranged on the side wall of the large oil cylinder (1) through threads.

10. The hydraulic cylinder chassis of claim 1, wherein: and a filter (20) is fixed at one end of the high-pressure liquid supplementing pipe (16) extending into the oil tank (15).