CN201329902Y - Telescopic semi-trailer and telescopic box girder thereof - Google Patents
Telescopic semi-trailer and telescopic box girder thereof Download PDFInfo
- Publication number
- CN201329902Y CN201329902Y CNU2008202388774U CN200820238877U CN201329902Y CN 201329902 Y CN201329902 Y CN 201329902Y CN U2008202388774 U CNU2008202388774 U CN U2008202388774U CN 200820238877 U CN200820238877 U CN 200820238877U CN 201329902 Y CN201329902 Y CN 201329902Y
- Authority
- CN
- China
- Prior art keywords
- case beam
- fixed case
- telescopic
- box girder
- active box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Body Structure For Vehicles (AREA)
Abstract
The utility model relates to a telescopic semi-trailer and a telescopic box girder thereof; the telescopic box girder comprises a fixed box girder and a movable box girder; the movable box girder is sleeved in the fixed box girder; the lower part of the inner cavity of the fixed box girder is provided with a row of rollers; the lower end surface of the movable box girder contacts with the outer periphery of the rollers in a rolling friction way; the side wall of the fixed box girder is provided with a locating hole and a limiting hole; the side wall of the movable box girder is correspondingly provided with a plurality of locating holes and a limiting hole for telescopic locating and limiting. The telescopic semi-trailer comprises a chassis; the chassis comprises the telescopic box girder, a wheel and a carriage plate; the locating hole of the fixed box girder is provided with a locating mechanism; and the limiting hole of the fixing box girder is provided with a limiting mechanism. The utility model adopts rolling frictions, and the friction force is greatly reduced; the required traction fore is small and the telescopic process is stabler and smoother, and the economic benefit after promotion is good.
Description
One, technical field:
The utility model relates to a kind of transport trolley, particularly relates to a kind of telescoping superimposed trailer and telescopic case beam thereof.
Two, background technology:
Development along with economy and technology, logistics is more and more unimpeded, and shipping also progressively develops into the goods of transportation super large, overlength, transport exceptional length freight at present and generally all use long towed vehicle, when loading, long towed vehicle has incomparable advantage, can be transported to the destination to exceptional length freight smoothly, but when zero load, also there are some defectives in long towed vehicle: vehicle body is oversize, and it is many to take road when setting out on a journey, it is big to take the storehouse place during stop, consume social resources, also the situation that long vehicle draws short shipment can occur in addition, the waste transport resource.At this situation, people develop the long towed vehicle with Telescopic, and its vehicle body can stretch as required, and shipping goods is convenient in elongation when needing, and shorten when unloaded, can be convenient to travel and do not take too much path resource and storehouse place resource.This vehicle generally all adopts the box crossbeam of mutual sheathing, its active box beam casing is contained in the fixed case beam, can stretch, and between active box beam and the fixed case beam detent mechanism is set, determine as required to carry out the mutual position of locking phase behind the collapsing length, this suit sliding structure has following deficiency: the fore and aft motion between active box beam and the fixed case beam is a cliding friction, and its friction force is big, it is flexible to need bigger tractive force to realize, it is not very convenient using.
Three, utility model content:
Technical problem to be solved in the utility model is: overcome the deficiencies in the prior art, a kind of telescopic easily case beam reasonable in design, flexible is provided, a kind of telescoping superimposed trailer that has this telescopic case beam is provided simultaneously.
The technical solution of the utility model is: a kind of telescopic case beam, contain fixed case beam and active box beam, and described active box beam casing is contained in the described fixed case beam, described fixed case beam inner chamber bottom is equipped with row's roller bearing, described active box beam lower surface contacts with described roller bearing periphery, it between the two friction of rolling, the sidewall of described fixed case beam is provided with a knock hole and a spacing hole, corresponding setting has a plurality of knock holees and a spacing hole on the sidewall of described active box beam, is convenient to flexible location and spacing.
Be rotating shaft and axle sleeve type structure between the both sides sidewall of described roller bearing two ends and described fixed case beam.Perhaps, be separately installed with antifriction-bearing box between the both sides sidewall of described roller bearing two ends and described fixed case beam.
The end surface shape of described fixed case beam and active box beam is rectangle, or is square.
A kind of telescoping superimposed trailer that contains described telescopic case beam, also contain the chassis, described chassis is by described telescopic case beam, axletree, wheel and compartment board, described compartment board is a split-type structural, its front portion is installed on the described fixed case beam, the rear portion is installed on the described active box beam rear end, and the front end sleeve of described active box beam is contained in the inner chamber of described fixed case beam, and described wheel used support to be installed in the lower end of fixed case beam and active box beam respectively; The knock hole place of described fixed case beam is equipped with detent mechanism, and the spacing hole place of described fixed case beam is equipped with stop gear.
Described detent mechanism contains locating dowel pin, fixed cover, stage clip and air cylinder, and described locating bush is installed on the described fixed case beam lateral wall, and suit locating dowel pin in its inner chamber is set with spring on the described locating dowel pin, and its rear end is connected with the piston rod of air cylinder.
Described stop gear contains locating dowel pin, fixed cover and spring, and described locating dowel pin front end is an angled end-face, and the rear end is a handle, and described locating bush is installed in described fixed case beam lateral wall, and suit locating dowel pin in its inner chamber is set with spring on the described locating dowel pin.
The beneficial effects of the utility model are:
1, fixed case beam inner chamber of the present utility model bottom is equipped with row's roller bearing, active box beam lower surface contacts with roller bearing, adopt friction of rolling to replace cliding friction in the past, its friction force reduces greatly, use less tractive force just can realize the flexible of active box beam, flexible, and telescopic process steady and smooth more.
2, be provided with detent mechanism and stop gear between the utility model active box beam and the fixed case beam, active box beam and fixed case beam can be located and lock to detent mechanism, and can realize accurate location; Its use principle is to connect the source of the gas rear pin shaft to break away from knock hole, disconnect the source of the gas rear pin shaft the effect downside pin of spring force go into the knock hole stop gear the active box beam be evacuated to carry out when the longest spacing, guarantee that the active box beam is not broken away from the fixed case beam by excessive pull, increases the safety of use.
3, the utility model is reasonable in design, is widely used in various vehicles such as common railing panel semi-trailer, low flat bed semi trailer, container transport semi-trailer, is easy to promote, and has good economic benefit.
Four, description of drawings:
Fig. 1 is the structural representation of telescopic case beam;
Fig. 2 is the structural representation of container semi-trailer;
Fig. 3 is the structural representation of common superimposed trailer.
Five, the specific embodiment:
Embodiment: referring to Fig. 1, Fig. 2 and Fig. 3, among the figure, telescopic case beam contains fixed case beam 1 and active box beam 2, and active box beam 2 is sleeved in the fixed case beam 1, fixed case beam 1 inner chamber bottom is equipped with row's roller bearing 4, active box beam 2 lower surfaces contact with roller bearing 4 peripheries, it between the two friction of rolling, the sidewall of fixed case beam 1 is provided with a knock hole and a spacing hole, corresponding setting has a plurality of knock holees and a spacing hole on the sidewall of active box beam 2, is convenient to flexible location and spacing.
For rotating shaft and axle sleeve type structure, also can adopt the scheme that is separately installed with antifriction-bearing box between the both sides sidewall of roller bearing 4 two ends and fixed case beam 1 between the both sides sidewall of roller bearing 4 two ends and fixed case beam 1.The end surface shape of fixed case beam 1 and active box beam 2 is rectangle, or is square.
The telescoping superimposed trailer contains the chassis, the chassis is by telescopic case beam, wheel and compartment board, compartment board is a split-type structural, its front portion is installed on the fixed case beam 1, the rear portion is installed on active box beam 2 rear ends, the front end sleeve of active box beam 2 is contained in the inner chamber of fixed case beam 1, and wheel used support to be installed in the lower end of fixed case beam 1 and active box beam 2 respectively; The knock hole place of fixed case beam 1 is equipped with detent mechanism 3, and the spacing hole place of fixed case beam 1 is equipped with stop gear 5.
When needing to stretch, connect source of the gas, air cylinder overcomes the effect of spring force, the pulling locating dowel pin breaks away from knock hole, active box beam 2 is flexible from fixed case beam 1 under the effect of traction external force, on roller bearing 4, slide in the telescopic process, according to length mark in the time will sliding to needed dowel hole, close source of the gas, this moment, locating dowel pin was pressed to active box beam 1 by the knock hole on the fixed case beam 1 under the effect of spring force, continued mobile active box beam 2, during knock hole on alignment activity case beam 2, locating dowel pin inserts under the effect of spring force in the knock hole of active box beam 2, and promptly finish flexible position fixing process this moment, makes superimposed trailer keep Len req.
The locating dowel pin of stop gear 3 is being pressed to active box beam 1 by the spacing hole on the fixed case beam 1 under the effect of spring force, continue mobile active box beam 2, when reaching end position, spacing hole on the locating dowel pin alignment activity case beam 2, locating dowel pin inserts in the spacing hole of active box beam 2 under the effect of spring force, prevent that active box beam 2 from pulling, and increases its safety in utilization from fixed case beam 1.When end position need be withdrawn, the pulling handle overcame in the spring, and locating dowel pin is pulled out from the spacing hole of active box beam 2, and active box beam 2 begins withdrawal, finishes a spacing process.
Claims (7)
1, a kind of telescopic case beam, contain fixed case beam and active box beam, and described active box beam casing is contained in the described fixed case beam, it is characterized in that: described fixed case beam inner chamber bottom is equipped with row's roller bearing, described active box beam lower surface contacts with described roller bearing periphery, it between the two friction of rolling, the sidewall of described fixed case beam is provided with a knock hole and a spacing hole, corresponding setting has a plurality of knock holees and a spacing hole on the sidewall of described active box beam, is convenient to flexible location and spacing.
2, telescopic case beam according to claim 1 is characterized in that: be rotating shaft and axle sleeve type structure between the both sides sidewall of described roller bearing two ends and described fixed case beam.
3, telescopic case beam according to claim 1 is characterized in that: be separately installed with antifriction-bearing box between the both sides sidewall of described roller bearing two ends and described fixed case beam.
4, according to claim 1 or 2 or 3 described telescopic case beams, it is characterized in that: the end surface shape of described fixed case beam and active box beam is rectangle, or is square.
5, a kind of telescoping superimposed trailer that contains the described telescopic case beam of claim 1, also contain the chassis, it is characterized in that: described chassis is by described telescopic case beam, axletree, wheel and compartment board, described compartment board is a split-type structural, its front portion is installed on the described fixed case beam, the rear portion is installed on the described active box beam rear end, and the front end sleeve of described active box beam is contained in the inner chamber of described fixed case beam, and described wheel used support to be installed in the lower end of fixed case beam and active box beam respectively; The knock hole place of described fixed case beam is equipped with detent mechanism, and the spacing hole place of described fixed case beam is equipped with stop gear.
6, telescoping superimposed trailer according to claim 5, it is characterized in that: described detent mechanism contains locating dowel pin, fixed cover, stage clip and air cylinder, described locating bush is installed on the described fixed case beam lateral wall, suit locating dowel pin in its inner chamber, be set with spring on the described locating dowel pin, its rear end is connected with the piston rod of air cylinder.
7, telescoping superimposed trailer according to claim 5, it is characterized in that: described stop gear contains locating dowel pin, fixed cover and spring, described locating dowel pin front end is an angled end-face, the rear end is a handle, described locating bush is installed in described fixed case beam lateral wall, suit locating dowel pin in its inner chamber is set with spring on the described locating dowel pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202388774U CN201329902Y (en) | 2008-12-29 | 2008-12-29 | Telescopic semi-trailer and telescopic box girder thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202388774U CN201329902Y (en) | 2008-12-29 | 2008-12-29 | Telescopic semi-trailer and telescopic box girder thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201329902Y true CN201329902Y (en) | 2009-10-21 |
Family
ID=41223277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202388774U Expired - Fee Related CN201329902Y (en) | 2008-12-29 | 2008-12-29 | Telescopic semi-trailer and telescopic box girder thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201329902Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530086A (en) * | 2010-12-31 | 2012-07-04 | 北京理工大学 | Minitype electrocar with telescopic chassis |
| CN103921862A (en) * | 2014-04-09 | 2014-07-16 | 江苏海鹏特种车辆有限公司 | Platform trailer with multiple steerable and retractable axles |
| CN110356475A (en) * | 2019-08-14 | 2019-10-22 | 山东畅达专用车有限公司 | A kind of two-layer equation dumper frame |
| CN114381995A (en) * | 2022-02-21 | 2022-04-22 | 河北扶波机械制造有限公司 | Telescopic pavement thermal regeneration vehicle and using method |
-
2008
- 2008-12-29 CN CNU2008202388774U patent/CN201329902Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102530086A (en) * | 2010-12-31 | 2012-07-04 | 北京理工大学 | Minitype electrocar with telescopic chassis |
| CN103921862A (en) * | 2014-04-09 | 2014-07-16 | 江苏海鹏特种车辆有限公司 | Platform trailer with multiple steerable and retractable axles |
| CN103921862B (en) * | 2014-04-09 | 2016-06-22 | 江苏海鹏特种车辆有限公司 | Multiaxis can turn to scalable flat bed transport vehicle |
| CN110356475A (en) * | 2019-08-14 | 2019-10-22 | 山东畅达专用车有限公司 | A kind of two-layer equation dumper frame |
| CN114381995A (en) * | 2022-02-21 | 2022-04-22 | 河北扶波机械制造有限公司 | Telescopic pavement thermal regeneration vehicle and using method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201329902Y (en) | Telescopic semi-trailer and telescopic box girder thereof | |
| CN202810277U (en) | Hand-pushed straddle forklift with vehicle carrying pallet for parking lot | |
| CN206704346U (en) | A kind of central axle trailer | |
| CN201895680U (en) | Draw hook trolley based interchange control mechanism of universal wheel and directional wheel | |
| CN203568780U (en) | Traction carrier | |
| CN200964125Y (en) | Van | |
| CN204095849U (en) | A kind of fluctuating travelling bogie | |
| CN204309972U (en) | One word three-wheeled electric flat truck | |
| CN204605940U (en) | A kind of arc bogie vehicle frame | |
| CN204161499U (en) | Superimposed trailer gooseneck structure and there is the superimposed trailer of this gooseneck structure | |
| CN201932243U (en) | Movable platform of trailer for vehicle transportation | |
| CN203005584U (en) | Bimetal light weight semi-trailer | |
| CN202225893U (en) | Convey vehicle for printed and dyed cloth | |
| CN201784731U (en) | Tipping trailer | |
| CN201932881U (en) | Crawler-type explosion-proof forklift | |
| CN205737659U (en) | Vertically wallpaper transport vehicle | |
| CN207607571U (en) | Efficiently heavy duty transfer car(buggy) | |
| CN207157026U (en) | A kind of automatic Quick overturning device of towed vehicle | |
| CN201415717Y (en) | Dual-use transport vehicle for peacetime and wartime | |
| CN203345043U (en) | Chassis secondary beam for hoisting and conveying vehicle | |
| CN208732149U (en) | A kind of cargo transfer pressure track handling facilities | |
| CN102963287A (en) | Hydraulic tail plate of novel material support vehicle | |
| CN215826582U (en) | Carriage push-and-pull tray for truck | |
| CN202847534U (en) | Multifunctional oil tank truck | |
| CN220314824U (en) | Turning structure of freight car |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20141229 |
|
| EXPY | Termination of patent right or utility model |