CN201540182U - Static detection device for impact braking system of full trailer - Google Patents
Static detection device for impact braking system of full trailer Download PDFInfo
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- CN201540182U CN201540182U CN 200920273810 CN200920273810U CN201540182U CN 201540182 U CN201540182 U CN 201540182U CN 200920273810 CN200920273810 CN 200920273810 CN 200920273810 U CN200920273810 U CN 200920273810U CN 201540182 U CN201540182 U CN 201540182U
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Abstract
The utility model relates to a static detection device for the impact braking system of a full trailer, which is characterized in that the device mainly comprises a traction ring loading unit and a torque detecting unit. The traction ring loading unit comprises a hydraulic system, a rack assembly, a crossbeam assembly, a fixed connection assembly and steel wire rope assemblies, wherein the hydraulic system is fixed on the rack assembly; guide wheels which not in the same axis are respectively arranged on two sides of the rack; and one end of the steel wire rope assembly and one end of the right steel wire rope assembly are connected with the crossbeam assembly through a guide wheel while the other end thereof are fixed on the traction engine head of the trailer. The utility model has the following benefits that the static detection device for the full trailer impact braking system can statically detect the braking performance of the impact braking system of the trailer, and has the characteristics of portability and simple operation, and an important effect on the safety of the running of the trailer.
Description
Technical field
The utility model belongs to motor vehicle detector, and relating in particular to a kind of brake system that is applicable to is to impact the static detection device of the full-trailer impact braking system of braking.
Background technology
The structure of full-trailer impact braking system is mainly by the bail compressing mechanism, the steel wire backguy, and brake pulling wire, detent is formed.Principle of work: the braking procedure of impact braking system is that in the truck combination driving process, after tractor was stepped on brake pedal, main car was braked, slowed down.Trailer still advances by original speed owing to inertia effect, the draw hook of main like this car produces impact to the bail of trailer, hydro-pneumatic spring in the bail is compressed, thereby tension braking stay cord, after impacting braking sensing device and transmission levers systems communicate, shoe brake is opened, and detent works, and trailer produces braking.
There is a large amount of impact braking system chassis of trailers using at present.The inspection of its security performance mainly is before use truck combination to be carried out the road inspection.Also there is not at present special brake system device for detecting performance at the full trailor that has impact braking system.The public technology that retrieves, according to the literature 1, Flickma.Tests to Evaluate B and G Brake Torque Tester. U.S. government science and technology report (NTIS), PB97-108203; 2, what is brave, Xi Wenbin, Qiu Zhengjun. portable tractor-semitrailer unit braking ability detector .CN 2378528,2000-07-12; 3, Luo Shizhong, Pan Qingping, Luo Gan. a kind of automobile brake perfrmance detecting device .CN 2054001,1990-03-07.Whether above-mentioned technology to be automobile (or truck combination) braking ability that has air pressure or hydraulic braking qualified if detecting, this technology can't detect the braking system energy that has the impact braking system trailer.
The braking ability of articulated vehicle is more than the braking ability complexity of single car.The former is except braking force distribution comparatively the complexity, and in braking procedure, the interaction partners insensitivity between tractor and the trailer also has bigger influence.During braking,, can have a strong impact on car load brake efficiency and directional stability if trailer braking protection valve power size is improper.
A. the damping force of left and right wheels (square) imbalance.Can cause brake side-slipping, the bad stability during the truck combination braking.
B. braking is excessively sensitive, and promptly damping force is excessive.To make the locking of Trailer car shaft elder generation produce whipping, thereby reduce the trailer braking protection valve security; Also can allow trailer usually be in on-position, detent is easy to heating fails braking ability rapidly, has reduced the serviceable life of detent.
C. brake insensitive or brake fade, promptly brakeless power or damping force are too small.Trailer will produce impact to tractor, cause folding, dangerous phenomenons such as braking distance is excessive, sideslip, influence safe in utilization.
Braking ability detects the mandatory Interventions Requested that belong to the national security technical checking, respectively braking distance and brake-force balance has been made concrete regulation as 7.13.1.1 and 7.14.1.2 bar among the GB7258-2004 " motor vehicle security of operation technical conditions ".Demand urgently in the industry developing have portable convenience, characteristics simple to operate, the driving safety that improves trailer is had vital role, can detect the device of impact braking system trailer braking protection valve performance.
The utility model content
The purpose of this utility model is to overcome the deficiency of above-mentioned technology, and provide a kind of static detection device that is applicable to the full-trailer impact braking system that has impact braking system, utilize the torgue measurement method, adopt trailer itself as anchor point, the hydraulic system pressurization, oil cylinder produces thrust, oppositely bail is applied pulling force by wire rope, the thrust of hydraulic system is become pulling force to bail, become the internal force of system generally, the problem of trailer self poisoning when having solved the bail compression.Impact a braking procedure difficult problem by solving static simulation, realize that impact braking system adopts the purpose of pick-up unit Static Detection.
The utility model for achieving the above object, by the following technical solutions: a kind of static detection device of full-trailer impact braking system, it is characterized in that: mainly constitute by bail loading unit and moment detecting unit, described bail loading unit is by hydraulic system, support assembly, the crossbeam assembly, fixedly connected assembly and wire rope assembly constitute, described hydraulic system is fixed on the support assembly, the frame both sides are respectively equipped with out of line angle sheave, described left and right sides wire rope assembly one end is connected with the crossbeam assembly by angle sheave, and the other end is fixed on the traction head of trailer.
Described fixedly connected assembly is divided into the activity weldering plate assembly or the Connection Block assembly of two kinds of different fixing positions, described movable weldering plate assembly is in turn connected into the movable weldering of frame-type plate assembly by thin plate, expansion plate, hinge, shifting board and middle baffle plate, and described Connection Block assembly is made of the Connection Block welding assembly, base plate and the bolt that connect successively.
Described hydraulic system is made of the hydraulic thrust device and the tensimeter of hydraulic cylinder and hydraulic pump integral type.
Described support assembly is made of biside plate, the V-type plate that is connected with its bottom, the hydraulic thrust device baffle plate that is connected with the side plate rear end, described biside plate center fixed has intermediate support plate and connecting link, the biside plate front portion is fixed with limit guide rail respectively, biside plate is provided with above-mentioned angle sheave, affixed movable weldering plate assembly or Connection Block assembly in the middle of described intermediate support plate and the V-type plate.
Described left and right wire rope assembly is connected and composed successively with the wire rope fixed block by bail fixed block, long fixed pin, wire rope, short fixed pin or is connected by eave tile, locating sleeve, bi-directional regulator, wire rope and short fixed pin, wire rope fixed block.
Described crossbeam assembly is made of crossbeam and guide pole, and described crossbeam is provided with two unthreaded holes of the short connecting pin that is used for fixing left and right wire rope assembly, and guide pole inserts on the limit guide rail of support assembly.
Described moment detecting unit mainly is made of tabular form torque spanner, spindle nose welding assembly, hook assembly, described spindle nose welding assembly comprises axle sleeve ring, tenon cover, link, described tenon is sheathed on axle sleeve ring center, uniform three links in axle sleeve ring neighboring, described axle sleeve ring is installed on the spindle nose of wheel, described hook assembly is made up of the hook and the bidirectional modulation handle at two ends, the hook and the link of described hook assembly one end articulate, the hook assembly other end is articulated in the hole of wheel rim of wheel, the tabular form torque spanner tenon be fixed in the square hole of spindle nose welding assembly.
The utility model beneficial effect: the braking ability that trailer impact braking system pick-up unit can Static Detection impact braking system trailer, have portable convenience, characteristics simple to operate, the driving safety that improves trailer is had vital role.
Description of drawings
Fig. 1-2 is a bail loading unit structural representation;
Fig. 3-the 4th, moment detecting unit structural representation;
Fig. 5-the 6th, hydraulic system component profile figure;
Fig. 7-the 9th, the support assembly structural representation;
Figure 10-the 11st, movable weldering plate assembly structure synoptic diagram;
Figure 12-12A, 13-13A-13B are the structural representations of two kinds of different wire rope assemblies;
Figure 14-the 15th, crossbeam assembly structure synoptic diagram;
Figure 16-17, Figure 16 A-17A are the synoptic diagram of two kinds of installation forms of bail loading unit;
Figure 18-the 19th, moment detecting unit are installed in the synoptic diagram on the wheel rim of wheel;
Figure 20-the 22nd, the structural representation of Connection Block assembly.
Among the figure: I, the bail loading unit, II, the moment detecting unit, 1, movable weldering plate assembly, 1-1, thin plate, 1-2, expansion plate, 1-3, hinge, 1-4, shifting board, 1-5, middle baffle plate, 2, the crossbeam assembly, 2-1, crossbeam, 2-2, guide pole, 2-3, unthreaded hole, 3, hydraulic system, 3-1, the hydraulic thrust device, 3-2, tensimeter, 4, support assembly, 4-1, angle sheave, 4-2, intermediate support plate, 4-3, V-type plate, 4-4, limit guide rail, 4-5, side plate, 4-6, hydraulic thrust device baffle plate, 4-7, connecting link, 5, the wire rope assembly, 5-1, the bail fixed block, 5-2, wire rope, 5-3, long fixed pin, 5-4, the wire rope fixed block, 5-5, short fixed pin, 5-6, bi-directional regulator, 5-7, locating sleeve, 5-8, eave tile 6, the tabular form torque spanner, 7, spindle nose welding assembly, 7-1, the axle sleeve ring, 7-2, the tenon cover, 7-3, link, 8, hook assembly, 8-1, hook, 8-2, the bidirectional modulation handle, 9, the Connection Block assembly, 9-1, Connection Block welding assembly, 9-2, base plate, 9-3, bolt.
Embodiment
Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing and preferred embodiment.
See accompanying drawing for details, a kind of static detection device of full-trailer impact braking system, mainly constitute by bail loading unit I and moment detecting unit II, described bail loading unit is made of hydraulic system 3, support assembly 4, crossbeam assembly 2, movable weldering plate assembly 1 or Connection Block assembly 9 and wire rope assembly 5, described hydraulic system is fixed on the support assembly, the frame both sides are respectively equipped with out of line angle sheave 4-1, described left and right sides wire rope assembly one end is connected with crossbeam assembly 2 by angle sheave, and the other end is fixed on the traction head of trailer.Described fixedly connected assembly is divided into the activity weldering plate assembly or the Connection Block assembly of two kinds of different fixing positions, and described movable weldering plate assembly is in turn connected into the movable weldering of frame-type plate assembly by thin plate 1-1, expansion plate 1-2, hinge 1-3, shifting board 1-4 and middle baffle plate 1-5.Described Connection Block assembly 9 is made of Connection Block welding assembly 9-1, the base plate 9-2 and the bolt 9-3 that connect successively.Described hydraulic system is made of the hydraulic thrust device 3-1 and the tensimeter 3-2 of hydraulic cylinder and hydraulic pump integral type.The hydraulic thrust device is used for hydraulic pressure can be converted to mechanical energy, realizes the bail compression.Described support assembly is made of biside plate 4-5, the V-type plate that is connected with its bottom, the hydraulic thrust device baffle plate 4-6 that is connected with the side plate rear end, described biside plate center fixed has intermediate support plate and connecting link 4-7, the biside plate front portion is welded with limit guide rail 4-4 respectively, biside plate is provided with above-mentioned angle sheave 4-1, be plugged with movable weldering plate assembly 1 in the middle of described intermediate support plate 4-2 and the V-type plate 4-3, movable weldering plate assembly or Connection Block assembly, and by dish shape nut plate assembly or Connection Block assembly and support assembly are welded in activity and be fixed into integral body.When detecting, shifting board is stuck in the rear end of traction head, is used for fixing the bail loading unit, realizes the compression of bail; On expansion plate, be drilled with six bolts hole, can regulate position with the support assembly mating holes according to the length of the traction head of different chassis of trailers like this.Described left and right wire rope assembly has two kinds of versions, first kind is connected and composed successively by bail fixed block 5-1, wire rope 5-2, long fixed pin 5-3, wire rope fixed block 5-4 and short fixed pin 5-5, the structure of the right wire rope assembly of this kind version and the structure of left wire rope assembly are except that the profile of fixed block is different with size, and all the other are consistent with the structure of left wire rope assembly.Another kind is made up of wire rope fixed block 5-4, short connecting pin 5-5, wire rope 5-2, bi-directional regulator 5-6, locating sleeve 5-7 and eave tile 5-8.The effect of wire rope assembly is that the pressure with the hydraulic thrust device passes to bail, makes the bail compression.Described crossbeam assembly is made of crossbeam 2-1 and guide pole 2-2, and described crossbeam is provided with two unthreaded hole 2-3 of the short connecting pin that is used for fixing left and right wire rope assembly, and guide pole inserts on the limit guide rail 4-4 of support assembly.When piston is flexible, play the effect of guiding.On guide pole, be carved with can reading scale, be used to show the bail stroke.Described moment detecting unit is mainly by tabular form torque spanner 6, spindle nose welding assembly 7, hook assembly 8 constitutes, described spindle nose welding assembly comprises axle sleeve ring 7-1, tenon cover 7-2, link 7-3, described tenon is sheathed on axle sleeve ring center, uniform three links in axle sleeve ring neighboring, described axle sleeve ring is installed on the spindle nose of wheel, described hook assembly is made up of the hook 8-1 and the bidirectional modulation handle 8-2 at two ends, the hook and the link of described hook assembly one end articulate, the hook assembly other end is articulated in the hole of wheel rim of wheel, the tabular form torque spanner tenon be fixed in the axle sleeve ring square hole of spindle nose welding assembly.Detect the wheel rim of different sizes during installation by the length of regulating the bidirectional modulation handle.Torque spanner is used for detecting the braking moment size of wheel.For reducing operator's labour intensity, is furnished with afterburning lever.
During detection, the moment detecting unit is fixed on the wheel rim of wheel.The bail loading unit has two kinds of mounting meanss, a kind of back that is mounted in the traction head, and utilization activity weldering plate assembly and wire rope assembly are realized the location, wherein left and right rope capacity is fixed, and can not adjust; Another kind is to utilize the Connection Block assembly that the bail loading unit is fixed on the bail, moves with bail.At first Connection Block is welded assembly, base plate and be bolted on the bail; The connecting link that the support assembly of hydraulic system will be housed again is stuck in the groove of Connection Block assembly, realizes the location of support assembly; The two ends of left and right wire rope assembly are separately fixed on the rear end and crossbeam assembly of traction head, and wherein left and right rope capacity can be adjusted according to different trailers.Though different according to different its installation sites of trailer vehicle, principle of work is the same.
Principle of work: at first bail is compressed, the state when the simulation bail is clashed into after bail is compressed, is measured the moment that can make left and right wheel respectively.According to measured (bail displacement, moment) corresponding relation, whether the braking moment size of the brake system of judgement institute inspection trailer is qualified.
One, testing process
(1) the bail loading unit is installed
At first hydraulic system is fixed on the support assembly, subsequently in the insertion support assembly limit guide rail with the guide pole of crossbeam assembly; The plate assembly is welded in activity is installed on the support assembly, be separately fixed at the two ends of left and right wire rope assembly on the bail again and the crossbeam assembly on; Select the mating holes of movable weldering plate and support assembly at last according to the length of traction head for use, and lock with wing nut; Or adopt another kind of mounting means: promptly utilize the Connection Block assembly that the bail loading unit is fixed on the bail, move with bail.At first Connection Block is welded assembly, base plate and be bolted on the bail; The connecting link that the support assembly of hydraulic system will be housed again is stuck in the groove of Connection Block assembly, realizes the location of support assembly; The two ends of left and right wire rope assembly are separately fixed on the rear end and crossbeam assembly of traction head, and wherein left and right rope capacity can realize adjusting by locating sleeve according to different trailers.
(2) mounting torque detecting unit
The axle sleeve ring that at first spindle nose is welded assembly is installed on the spindle nose of wheel, and the two ends with hook assembly are separately fixed in the hole of spindle nose welding assembly and rim for automobile wheel again.Realize locking by the bidirectional modulation handle of regulating hook assembly.At last with torque spanner tenon be fixed in the square hole of spindle nose welding assembly.
(3) compressive traction ring
Hand hydraulic pressure assembly handle, piston is compressed, left and right wire rope assembly tension bail, bail is compressed, braking system acts.The interior pressure of oil pipe this moment increases, the piston rod elongation, and bail constantly is compressed; Read rod reading simultaneously, wait to reach regulation numerical value after, stop to shake hydraulic pressure assembly handle.
(4) detect braking moment
Utilize torque spanner firmly to rotate wheel rim it is rotated, and read the moment values that wheel rim is rotated.
(5) contrast standard form, result of determination
To detect numerical value and the contrast of regulation numerical value, judge whether the brake system of this sidecar wheel is qualified.
1. the data acquisition of the criteria table process of criterion of acceptability (judge)
(1) earlier the peek platform detects brake system according to the examination of GB-7258-2004 " motor vehicle security of operation technical conditions " pathway and detects qualified trailer, utilizes this pick-up unit to measure that (s, some M) is as standard value.
(2) according to actual conditions, (s M), calculates (s, M respectively in correction
Max), (s, M
Min).
(3) according to measuring (s, M) table that the result draws a standard.
(4) according to standard (s, M) table carries out road examination to the trailer of being regulated again, revises criteria table, draws final (s, M) table through repetition test.
When (5) detecting according to testing result with (s, M) standard value in the table is made comparisons:
A. if M
Min〉=M
Survey, then think and brake the damping force deficiency;
B. if M
Max≤ M
Survey, think that then braking is too sensitive;
C. δ M
Survey right＜M
Survey a left side＜λ M
Survey right(or δ M
Survey a left side＜M
Survey right＜λ M
Survey a left side), then think left and right sides equalising torque, otherwise think left and right sides moment unbalance.
Wherein: the displacement of s-bail, at the reading of guided way crossbeam scale;
The moment that M-turns a wheel;
M
Max-the maximum moment that can allow wheel allow;
M
Min-minimum the moment that can allow wheel allow;
M
Survey a left side-actual recording can make left side wheel rotate required moment;
M
Survey right-actual recording can make right side wheels rotate required moment;
δ, γ-correction factor.
In the process of test, 20 chassis have been used altogether.Rod reading is respectively from 35-60mm, and with 1mm position unit, repetition test is measured corresponding (bail displacement, braking moment) respectively, has drawn (bail displacement, a braking moment) form.According to this form trailer is carried out braking moment then and regulate, carry out road examination check again and whether meet national standard.Above-mentioned repeatedly test, drawing finally can be in conjunction with the criteria table of actual conditions use, and the testing staff is according to the data of this form correspondence, and whether the braking ability that can draw institute's survey trailer is qualified.
Two, the partial data of test findings
Table one 1
#Trailer detects data
Table two 2# trailer detects data
Table three 3# trailer detects data
Table four 4# trailer detects data
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all still belongs in the scope of the technical solution of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (7)
1. the static detection device of a full-trailer impact braking system, it is characterized in that: mainly constitute by bail loading unit and moment detecting unit, described bail loading unit is made of hydraulic system, support assembly, crossbeam assembly, fixedly connected assembly and wire rope assembly, described hydraulic system is fixed on the support assembly, the frame both sides are respectively equipped with out of line angle sheave, described left and right sides wire rope assembly one end is connected with the crossbeam assembly by angle sheave, and the other end is fixed on the traction head of trailer.
2. the static detection device of full-trailer impact braking system according to claim 1, it is characterized in that: described fixedly connected assembly is divided into the activity weldering plate assembly or the Connection Block assembly of two kinds of different fixing positions, described movable weldering plate assembly is in turn connected into the movable weldering of frame-type plate assembly by thin plate, expansion plate, hinge, shifting board and middle baffle plate, and described Connection Block assembly is made of the Connection Block welding assembly, base plate and the bolt that connect successively.
3. the static detection device of full-trailer impact braking system according to claim 1, it is characterized in that: described hydraulic system is made of the hydraulic thrust device and the tensimeter of hydraulic cylinder and hydraulic pump integral type.
4. the static detection device of full-trailer impact braking system according to claim 1, it is characterized in that: described support assembly is made of biside plate, the V-type plate that is connected with its bottom, the hydraulic thrust device baffle plate that is connected with the side plate rear end, described biside plate center fixed has intermediate support plate and connecting link, the biside plate front portion is fixed with limit guide rail respectively, biside plate is provided with above-mentioned angle sheave, and described intermediate support plate and V-type plate center fixed are connected with movable weldering plate assembly or Connection Block assembly.
5. the static detection device of full-trailer impact braking system according to claim 1 is characterized in that: described left and right wire rope assembly is connected and composed successively with the wire rope fixed block by bail fixed block, long fixed pin, wire rope, short fixed pin or is connected by eave tile, locating sleeve, bi-directional regulator, wire rope and short fixed pin, wire rope fixed block.
6. the static detection device of full-trailer impact braking system according to claim 1, it is characterized in that: described crossbeam assembly is made of crossbeam and guide pole, described crossbeam is provided with two unthreaded holes of the short connecting pin that is used for fixing left and right wire rope assembly, and guide pole inserts on the limit guide rail of support assembly.
7. the static detection device of full-trailer impact braking system according to claim 1, it is characterized in that: described moment detecting unit is mainly by the tabular form torque spanner, spindle nose welding assembly, hook assembly constitutes, described spindle nose welding assembly comprises the axle sleeve ring, the tenon cover, link, described tenon is sheathed on axle sleeve ring center, uniform three links in axle sleeve ring neighboring, described axle sleeve ring is installed on the spindle nose of wheel, described hook assembly is made up of the hook and the bidirectional modulation handle at two ends, the hook and the link of described hook assembly one end articulate, the hook assembly other end is articulated in the hole of wheel rim of wheel, the tabular form torque spanner tenon be fixed in the square hole of spindle nose welding assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920273810 CN201540182U (en) | 2009-11-25 | 2009-11-25 | Static detection device for impact braking system of full trailer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200920273810 CN201540182U (en) | 2009-11-25 | 2009-11-25 | Static detection device for impact braking system of full trailer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201540182U true CN201540182U (en) | 2010-08-04 |
Family
ID=42591638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200920273810 Expired - Fee Related CN201540182U (en) | 2009-11-25 | 2009-11-25 | Static detection device for impact braking system of full trailer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201540182U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110494727A (en) * | 2017-03-22 | 2019-11-22 | 迈梭电子马耳他股份有限公司 | Sensor module based on magnetoelasticity |
| CN117848740A (en) * | 2024-03-08 | 2024-04-09 | 山东天鸿汽车科技股份有限公司 | Trailer chassis load detection device |
-
2009
- 2009-11-25 CN CN 200920273810 patent/CN201540182U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110494727A (en) * | 2017-03-22 | 2019-11-22 | 迈梭电子马耳他股份有限公司 | Sensor module based on magnetoelasticity |
| CN117848740A (en) * | 2024-03-08 | 2024-04-09 | 山东天鸿汽车科技股份有限公司 | Trailer chassis load detection device |
| CN117848740B (en) * | 2024-03-08 | 2024-05-14 | 山东天鸿汽车科技股份有限公司 | Trailer chassis load detection device |
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100804 Termination date: 20121125 |