CN102923120A

CN102923120A - Trailer axle air cylinder structure

Info

Publication number: CN102923120A
Application number: CN2012104698795A
Authority: CN
Inventors: 纪建奕; 刘宗强; 马长城; 李建光; 梁伯江; 孙锡强; 赵剑斌
Original assignee: Qingte Group Co Ltd
Current assignee: Qingte Group Co Ltd
Priority date: 2012-11-20
Filing date: 2012-11-20
Publication date: 2013-02-13

Abstract

The invention discloses a trailer axle air cylinder structure which comprises an axle main body with a sealed cavity, wherein an air inlet, an air outlet and a water drainage hole, which are communicated with the sealed cavity, are formed in a non pressure bearing section of the axle main body; the water drainage hole is formed in the side surface of the axle main body; a screw seat connected with the axle main body is arranged in the water drainage hole; a guide pipe downwardly extending from the arranging direction of the water drainage hole to the bottom of the sealed cavity of the axle main body is arranged in the screw seat; and the guide pipe is fixedly connected with the screw seat by a water drainage valve. Air is stored by the sealed cavity of the trailer axle instead of the traditional air cylinder, the number of parts is directly reduced, the weight of the finished vehicle is reduced, a chain connecting position of the air inlet and the air outlet is placed on the side surface of an axle tube, a protector is prevented from being collided in the vehicle running process and the distance between the air cylinder and a brake air chamber is reduced, so that the trailer axle air cylinder structure is beneficial for the layout of the finished vehicle. As accumulated water is drained under the control of the water drainage valve, convenience in operation as well as good water drainage and air storage sealing effects are achieved.

Description

A kind of Trailer car shaft air receiver structure

Technical field

The present invention relates to automotive field, specifically a kind of with the structure of trailer axle tube as air receiver.

Background technology

At present, the trailer braking protection valve accumulator unit uses air receiver gas storage both at home and abroad, because the volume of storage tank is larger, has taken very large space, the layout that is unfavorable for space, car load chassis, and affected the bearing capacity of superimposed trailer, strengthened oil consumption, increased productive costs, and be subjected to the special vehicle of structural limitations for part, air receiver is placed apart from compressed air brake cylinder etc. at a distance, and piping layout is long, has the potential safety hazards such as conduit failure, gas leakage.Chinese utility model patent CN 201753056 U disclose a kind of axletree, comprise the axletree body with inner chamber, characteristics are: be respectively equipped with the end cap with bore seal at the two ends of axletree body, non-pressure-bearing section place at the axletree body is provided with induction opening and the air gate that is communicated with inner chamber, induction opening is communicated with Air compressor by air inlet pipe, and air gate is communicated with the axletree brake equipment by freeing pipe.Although this axletree solved superimposed trailer weight large, take chassis space and the higher problem of cost, but the ponding drainage problem of axletree inner chamber is also unresolved, drain gutter is located at the bottom of the non-pressure-bearing section of axletree, and the drain gutter by the plug for seal axletree, has following defective: first, ponding needs manual unlocking to stop up discharge, timely draining and troublesome poeration, second, drain gutter is located at the bottom, its obstruction is dropped in the automobile bumpiness process easily, and then the gas storage effect was lost efficacy, and leads to a disaster.

Summary of the invention

Deficiency for the prior art existence, technical matters to be solved by this invention is, provide a kind of when guaranteeing carrying with central siphon as the gas storage parts, shorten the active distance of gas storage position and compressed air brake cylinder, reduce bearing capacity and oil consumption, solve because of the long existing pipeline fracture of pipeline, the joint Trailer car shaft air receiver structure of potential problem and compact conformation, gas storage safety, long service life such as collide with.

For solving the problems of the technologies described above, the technical solution used in the present invention is: a kind of Trailer car shaft air receiver structure, comprise the axletree body with closed inner chamber, the non-pressure-bearing section of described axletree body is provided with induction opening, air gate and the drain gutter that is connected with closed inner chamber, described drain gutter is located at the side of axletree body, the silk seat that is connected with the axletree body is set on the described drain gutter, in the silk seat, be provided with one from the drain gutter setting party conduit to the closed inner chamber bottom that extends downward the axletree body, described conduit is captiveed joint by sluicing valve and silk.

Above-mentioned Trailer car shaft air receiver structure, described conduit is set to plastic hose or metal tube.

The advantage of Trailer car shaft air receiver structure of the present invention is: this project utilizes the inner chamber of Trailer car shaft sealing to come gas storage; replace traditional air receiver; in the quantity that directly reduces parts; reduce complete vehicle weight; the chain attached site of inlet, outlet is placed the side of central siphon; protector is avoided colliding with in the Vehicle Driving Cycle process, shortens simultaneously the distance of air receiver and compressed air brake cylinder, is conducive to the layout of car load.Choose preferred plan by analysis and guarantee under the prerequisite that does not affect the central siphon in-use performance, to utilize cavity gas storage in the central siphon, substitute traditional air receiver, easy to operate by the discharge of sluicing valve control ponding, and draining and gas storage good sealing effect.

Description of drawings

Fig. 1 is the integral structure scheme drawing of the embodiment of the invention 1;

Fig. 2 is the structure for amplifying cutaway view of A-A among Fig. 1;

Fig. 3 is draining pore structure enlarged diagram in the embodiment of the invention 2.

The specific embodiment

Below in conjunction with drawings and the specific embodiments the present invention is described in further details;

Embodiment 1:

Such as Fig. 1, shown in 2, a kind of Trailer car shaft air receiver structure, comprise the axletree body 2 with closed inner chamber 1, the non-pressure-bearing section of axletree body 2 is provided with the induction opening 3 that is connected with closed inner chamber 1, air gate 4 and drain gutter 5, induction opening 3 is communicated with Air compressor by air inlet pipe, air gate 4 is communicated with the axletree brake equipment by freeing pipe, this drain gutter 5 is located at the side of axletree body 2, the silk seat 6 that is connected with axletree body 2 is set at drain gutter 5, in silk seat 6, be provided with one from drain gutter 5 setting parties the conduit 7 to closed inner chamber 1 bottom that extends downward axletree body 2, this conduit 7 is captiveed joint by sluicing valve 8 and silk 6.Conduit 7 is set to plastic hose, passes through sluicing valve 8 with the flexible pipe press seal in silk seat 6, and conduit 7 is simple in structure, is convenient to processing and installs, and flexible pipe can guarantee that the mouth of pipe hangs down into the bottom surface of the closed inner chamber 1 of central siphon.

Embodiment 2:

As shown in Figure 3, conduit 7 is set to metal tube, joint O type circle 9 is with conduit 7 press seals, metal tube is threaded connection on the silk seat 6, the side opening angle of conduit 7, the conduit mouth that guarantees conduit 7 reaches lowest part, adjusts conduit 7 and behind the bottom surface of the closed inner chamber 1 of central siphon silk seat 6 is welded on the axletree body 2.

1, the design is to reference standard conditions central siphon (wheelspan 1840mm, the 150x150x12mm square tube, ∮ 152.4mm, ∮ 177.8mm) calculates, about 23L～the 30L of volume that its single axletree obtains, trailer is generally the volume that three axles obtain about 69L～90L altogether at present, and common trailer generally is equipped with 60L air receiver (weight is about 45kg), reaches operating needs;

2, the design designs circular central siphon (∮ 152.4mm, ∮ 177.8mm) and three kinds of states of square central siphon (cross section is 150x150mm), turnover gas interface position is placed near the central siphon spring block side, and discharge port places near side or the bottom position the spring block;

3, for central siphon and spindle nose welded type and integral structure, after the antirust processing of employing shaft tube inner wall scarfing cinder, at relevant position welding admission port, air extractor duct connecting filament seat, then be threaded connection installation and connect mouth, so that be connected with the pipeline of car load;

4, the central siphon of welded structure directly forms confined space by the welding of spindle nose and axis body, and the integral structure central siphon needs to utilize screw thread and welding to seal at two ends, to satisfy the demand of its pressure;

5, for the state of discharge port in the central siphon side, increase the bottom that plastic hose or metal tube be connected to central siphon at the silk seat and by the central siphon air pressure inside water of bottom is discharged by conduit;

Certainly, above-mentioned explanation is not to be limitation of the present invention, and the present invention also is not limited to above-mentioned giving an example; those skilled in the art; in essential scope of the present invention, the variation of making, remodeling, interpolation or replacement all should belong to protection scope of the present invention.

Claims

1. Trailer car shaft air receiver structure, comprise the axletree body with closed inner chamber, the non-pressure-bearing section of described axletree body is provided with induction opening, air gate and the drain gutter that is connected with closed inner chamber, it is characterized in that: described drain gutter is located at the side of axletree body, the silk seat that is connected with the axletree body is set on the described drain gutter, in the silk seat, be provided with one from the drain gutter setting party conduit to the closed inner chamber bottom that extends downward the axletree body, described conduit is captiveed joint by sluicing valve and silk.

2. Trailer car shaft air receiver structure according to claim 1, it is characterized in that: described conduit is set to plastic hose or metal tube.