CN107199933A - Self-discharging semitrailer and its vehicle frame - Google Patents
Self-discharging semitrailer and its vehicle frame Download PDFInfo
- Publication number
- CN107199933A CN107199933A CN201610151776.2A CN201610151776A CN107199933A CN 107199933 A CN107199933 A CN 107199933A CN 201610151776 A CN201610151776 A CN 201610151776A CN 107199933 A CN107199933 A CN 107199933A
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- vehicle frame
- support
- support base
- self
- support bar
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- 238000007599 discharging Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 27
- 230000003028 elevating effect Effects 0.000 claims abstract description 5
- 230000009471 action Effects 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 4
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60P—VEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
- B60P1/00—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading
- B60P1/04—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element
- B60P1/16—Vehicles predominantly for transporting loads and modified to facilitate loading, consolidating the load, or unloading with a tipping movement of load-transporting element actuated by fluid-operated mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60S—SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
- B60S9/00—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks
- B60S9/02—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting
- B60S9/10—Ground-engaging vehicle fittings for supporting, lifting, or manoeuvring the vehicle, wholly or in part, e.g. built-in jacks for only lifting or supporting by fluid pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D59/00—Trailers with driven ground wheels or the like
- B62D59/02—Trailers with driven ground wheels or the like driven from external propulsion unit
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transportation (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Vehicle Cleaning, Maintenance, Repair, Refitting, And Outriggers (AREA)
Abstract
A kind of self-discharging semitrailer and its vehicle frame, self-discharging semitrailer includes vehicle frame, is arranged at the walking mechanism of vehicle frame lower rear and the compartment being arranged above vehicle frame, elevating ram is installed between the compartment front end and vehicle frame front end, position before the towing pin that the vehicle frame includes main body of vehicle frame, is arranged on the towing plate of main body of vehicle frame front bottom surface and is arranged on the towing plate, the correspondence towing pin of the main body of vehicle frame front end has support meanss.The support meanss cause semitrailer when get rid of extension lifting operation, can resist oil cylinder to the anterior support reaction of vehicle frame, it is ensured that the security and stability after lifting, prevent the anterior stress of trailer from damaging.
Description
Technical field
Self-discharging semitrailer is turned over the present invention relates to transport vehicle field, more particularly to after one kind.
Background technology
Self-discharging semitrailer is turned over after existing, as shown in figure 1, including：Vehicle frame 2, it is arranged on the lower section of vehicle frame 2 and the walking mechanism 3 of position and is arranged on the compartment 4 of the top of vehicle frame 2 rearward.
The lower front of vehicle frame 2 is provided with supporting leg 26, when semitrailer is separated with tractor, supporting leg 26 supports vehicle frame together with the walking mechanism 3 at the rear of vehicle frame 2.
Oil cylinder 5 is also associated between the front wall in compartment 4 and the front end of vehicle frame 2, to lift compartment 4 by oil cylinder 5, compartment 4 is turned over and realizes unloading.
Oil cylinder 5 is arranged on vehicle frame 2 by cylinder installation seat and positioned at the position in the front of towing pin 24, when trailer lifts operation, oil cylinder 5 is anterior to vehicle frame（Position mainly between cylinder installation seat and towing pin）Very big support reaction can be produced, and supporting leg 26 is arranged on the position at the rear of towing pin 24, thus the support reaction can not be resisted, to ensure the security and stability after lifting, prevent the anterior stress of trailer from damaging, it is desirable to which it is necessary to have corresponding support for the anterior oil cylinder 5 of trailer to the position between towing pin 24.When self-discharging semitrailer, which is mounted, to be lifted, trailer front portion is in itself as support, but this unloading mode can take tractor, reduce the service efficiency of tractor using tractor.
To improve tractor service efficiency, in the market releases the support meanss that some can be installed on semitrailer temporarily, such as the Chinese patent of Application No. 201020126465.9, its open one kind gets rid of trailer Special supporting device, hung when tractor is de-, when trailer needs to get rid of extension lifting operation, it can will get rid of trailer Special supporting device and be temporarily mounted to semitrailer front portion, support is provided for trailer front portion, improve the security and stability that oil cylinder lifts operation, but it is this install additional temporarily get rid of trailer Special supporting device due to use nut screw formula flexible pipe structure, required installing space is big, stroke is shorter, bottom closure is highly big, the road clearance is relatively low after installation, interference thus can be produced with tractor, so as to which the anterior position close to oil cylinder and towing pin of trailer can not be arranged on.Also have part user using below trailer towing pin plus temporary fixing rack stupid method, but temporary fixing rack not only wastes time and energy, and operating efficiency is low, and due to can not onboard, often occur situation about can not timely use, delay car unloading operation.
The content of the invention
The present invention's essentially consists in a kind of self-discharging semitrailer of offer and its vehicle frame, and the Front-end Design of the vehicle frame has support meanss so that semitrailer, which can be realized, gets rid of extension lifting operation.
In order to solve the above technical problems, the present invention proposes a kind of self-discharging semitrailer vehicle frame, including：Position before main body of vehicle frame, the towing pin for being arranged on the towing plate of main body of vehicle frame front bottom surface and being arranged on the towing plate, the correspondence towing pin of the main body of vehicle frame front end has support meanss.
More preferably, the support meanss can be supported in ground by lifting, upset or expanding-contracting action, or, it is retracted to the bottom surface that its bottom surface is not less than towing plate.
More preferably, the support meanss include：Two support bases and two support bars, two support base is separately fixed at the both sides of the main body of vehicle frame front end and the bottom surface of the support base is not less than the towing plate bottom surface, and each support bar one support base of correspondence can simultaneously be moved up and down relative to the support base.
More preferably, gear and the rotating mechanism to be rotated with moving gear are provided with the support base, the support bar is disposed with the rack engaged with the gear along its length.
More preferably, the rotating mechanism includes rocking handle, and the rocking handle and the gear are coaxially connected, or are connected by transmission mechanism with the gear.
More preferably, locking device is provided between the support base and support bar, the locking device includes：The locking hole that is arranged on support base, be arranged on the support bar close top and bottom position multiple positioning holes and lock pin, the lock pin inserts the locking hole and any positioning hole and the support bar is fixed on the support base.
More preferably, the support base is in sleeve-shaped, and the support bar is arranged in the support base of sleeve-shaped.
More preferably, the support bar includes：The body of rod supports sole with body of rod bottom one is hinged on, the Breadth Maximum of the body of rod is less than the Breadth Maximum of the support base inner cylinder and can moved up and down in the support base, the width of the support sole is more than the Breadth Maximum of the support base inner cylinder, the bottom surface of the support base is higher than the setpoint distance of towing plate bottom surface one, to form a receiving space to accommodate the support sole in the support base bottom surface.
More preferably, the support bar is moved up and down using hydraulic cylinder or cylinder as power source relative to the support base.
More preferably, the support meanss include：Two hinged seats and two support bars, two hinged seat is separately fixed at the both sides of the main body of vehicle frame front end and the bottom surface of the hinged seat and is not less than the towing plate bottom surface, two support bar is corresponded respectively to be hinged on each hinged seat and can up or down be overturn relative to hinged seat, and when the support bar is flipped up in place, the bottom surface of support bar is not less than the bottom surface of the towing plate.
More preferably, the support bar is connected with the piston rod of hydraulic cylinder or cylinder by toggle and realizes and spin upside down.
To solve above-mentioned technical problem, the present invention also proposes a kind of self-discharging semitrailer, including vehicle frame, the walking mechanism of vehicle frame lower rear and the compartment being arranged above vehicle frame are arranged at, elevating ram is installed between the compartment front end and vehicle frame front end, the vehicle frame is above-mentioned dumper frame.
Compared with prior art, the present invention has the advantages that：The present invention installs support meanss additional by the position before the towing pin of semitrailer front end, make semitrailer when get rid of extension lifting operation, oil cylinder can be resisted to the anterior support reaction of vehicle frame using support meanss as support, ensure the security and stability after lifting, prevent the anterior stress of trailer from damaging；In addition, the support meanss of present pre-ferred embodiments realize that support bar is lifted using pitch wheel rack, it is not only simple to operate, it is easy to use, and required installing space is small, and stroke is larger, bottom closure is highly small, the road clearance is higher after installation, will not produce interference with tractor, from without influenceing tractor and semitrailer normally to mount.
Brief description of the drawings
The structural representation of the existing self-discharging semitrailer vehicle frames of Fig. 1；
Fig. 2 is the structural representation of the self-discharging semitrailer vehicle frame side of the present invention；
Fig. 3 is structural representation of the support meanss in working condition of the first embodiment of the close front position in self-discharging semitrailer side of the present invention；
Fig. 4 be Fig. 3 along A to structural representation；
Fig. 5 is structural representation of the support meanss in off working state of the first embodiment of the close front position in self-discharging semitrailer side of the present invention；
Fig. 6 be Fig. 5 along B to structural representation；
Fig. 7 is connected to the schematic diagram of semitrailer hitch structure both sides for the support meanss of second embodiment；
Fig. 8 is the structure chart of the drive mechanism of the support meanss of second embodiment.
Description of reference numerals is as follows：2nd, vehicle frame；23rd, towing plate；24th, towing pin；25th, support meanss；251st, support base；252nd, support bar；2521st, the body of rod；2522nd, sole is supported；253rd, drive mechanism；2531st, rack；2532nd, gear；2533rd, rotating mechanism；256th, lock pin；25a, support meanss；251a, support base；252a, support bar；253a, drive mechanism；2531a, oil cylinder；2532a, piston rod；2533a, toggle；254a, rotating shaft；26th, supporting leg.
Embodiment
In order to further illustrate the principle and structure of the present invention, in conjunction with accompanying drawing to a preferred embodiment of the present invention will be described in detail.
The present invention is when describing orientation, and orientation where using dumper headstock is before, after orientation where the tailstock is.
The self-discharging semitrailer of the present invention includes vehicle frame, is arranged at the walking mechanism of vehicle frame lower rear and the compartment being arranged above vehicle frame, and elevating ram is provided between compartment front end and vehicle frame front end.
Refering to Fig. 2 to Fig. 8, the self-discharging semitrailer vehicle frame includes：Main body of vehicle frame 21, the towing pin 24 for being arranged on the towing plate 23 of the front bottom surface of main body of vehicle frame 21 and being arranged on the towing plate 23.
Main body of vehicle frame 21 includes：Two longerons and the crossbeam being connected between two longerons.
Towing plate 23 is connected to the position of the close front end between two longerons, and towing pin 24 is fixed on towing plate 23 and extends downwardly from towing plate 23.When semitrailer is docked with tractor, tractor saddle is located at the lower section of towing plate 23 and slid into along towing plate 23 to be mounted with towing pin 24.
Position after the correspondence towing pin 24 of main body of vehicle frame 21 is provided with supporting leg 26, and when semitrailer is separated with tractor, supporting leg 26 supports vehicle frame together with the walking mechanism 3 at the rear of vehicle frame 2.
Position before the correspondence towing pin 24 of main body of vehicle frame 21 is additionally provided with support meanss 25, and the support meanss 25 can be supported in ground, can also pack up and be located on towing plate 23.
Support meanss 25 can switch on working condition or off working state by lifting, upset or expanding-contracting action, and during working condition, support meanss 25 can be supported in ground, so that when semitrailer is separated with tractor and during elevating ram（When getting rid of extension lifting operation）, trailer front portion can be using support meanss 25 as support, and resistance oil cylinder is to the anterior support reaction of vehicle frame, it is ensured that the security and stability after lifting, prevent the anterior stress of trailer from damaging；During off working state, support meanss 25 can be retracted to the bottom surface that its bottom surface is not less than towing plate 23 by lifting, upset or expanding-contracting action, it is ensured that tractor and semitrailer are normally mounted, and do not influence normal transport to operate.
The concrete structure of support meanss 25 is varied, and the structure of several preferred embodiments is enumerated below with reference to accompanying drawing.
Support meanss first embodiment.
Refering to Fig. 2 to Fig. 6, the support meanss 25 of the present embodiment include：Two support bases 251 and two support bars 252, two support bases 251 are separately fixed at the both sides of main body of vehicle frame front end and the bottom surface of support base 251 is not less than the bottom surface of towing plate 23, and each correspondence of support bar 252 is arranged on a support base 251.
It is preferred that support base 251 is in sleeve-shaped, support bar 252 is arranged in the support base 251 of sleeve-shaped.
Support bar 252 includes：The body of rod 2521 can increase the contact area with ground, improve the stability used with the bottom one of the body of rod 2521 support sole 2522, support sole 2522 is hinged on.
The Breadth Maximum of the body of rod 2521 is less than the Breadth Maximum of the inner cylinder of support base 251 and can moved up and down in support base 251, the Breadth Maximum of sole 2522 is supported to be more than the Breadth Maximum of the inner cylinder of support base 251, thus when the body of rod 2521 is moved up in place, support sole 2522 can be exposed to the lower section of support base 251.
To avoid support sole 2522 influence tractor and semitrailer from normally mounting, support base 251 is when mounted, it is preferred that making its bottom surface higher than the setpoint distance of bottom surface one of towing plate 23, the setpoint distance is substantially equal to the height of support sole 2522, so as to form a receiving space in the bottom surface of support base 251, just support sole 2522 can be accommodated, support sole 2522 is not less than the bottom surface of towing plate 23 in 252 collapsed state of support bar, it is ensured that tractor and semitrailer can be mounted normally.
Support meanss 25 also include one to drive support bar 252 relative to the drive mechanism 253 that support base 251 is moved up and down.
It is preferred that in the present embodiment, drive mechanism 253 includes：Rack 2531, gear 2532 and the rotating mechanism 2533 to be rotated with moving gear 2532.
Rack 2531 is arranged on support bar 252 and arranged along the length direction of support bar 252.
Gear 2532 sets on support base 251 and can be meshed with gear 2532.
Rotating mechanism 2533 is connected with gear 2532 and can rotated with moving gear 2532.
In the present embodiment, rotating mechanism includes rocking handle, the rocking handle and gear 2532 are coaxially connected, or pass through transmission mechanism, such as gear train, it is connected with gear 2532, so as to which directly or indirectly band moving gear 2532 is rotated, the forward direction of gear 2532 or reversion rotation are realized, and engaged while rotation with the rack 2531 on support bar 252, support bar 252 is set to decline relative to support base 251 and be supported in ground or rising and pack up, so as to switch on working condition or off working state.
Gear 2532 to drive each support bar 252 to move can connect a rocking handle respectively, to drive each support bar 252 to rise or fall respectively, also the gear 2532 of wherein side can be connected a rocking handle, and by the coaxially connected another side gear 2532 of a connecting rod, risen or fallen so as to by a rocking handle two support bars 252 can be driven to realize.
The locking device being additionally provided between support base 251 and support bar 252, so that when support bar 252 rises or falls and moved into place, support bar 252 to be fixed with support base 251 by locking device, the two relative motion of limitation.
Locking device can be hook, latch, the structure such as latch.
It is preferred that in the present embodiment, locking device includes：The locking hole that is arranged on support base 251, be arranged on support bar 252 close top and bottom position multiple positioning holes and lock pin 256, lock pin 256 can be inserted into locking hole and any positioning hole and support bar 252 is fixed on support base 251.Specifically, when support bar 252 drops to contact ground, the positioning hole of the close upper end of support bar 252 is aligned with the locking hole on support base 251, support bar 252 can be locked at stretching state by insertion lock pin 256, similarly, when support bar 252 rises in place, now, positioning hole of the support bar 252 close to lower end is aligned with the locking hole on support base 251, and support bar 252 can be locked at collapsed state by insertion lock pin 256.
It is worth mentioning that, in other embodiments, support bar 252 can also be moved up and down using hydraulic cylinder or cylinder as power source relative to support base 251, i.e., to drive support bar 252 relative to the drive mechanism 253 that support base 251 is moved up and down the actuating units such as cylinder or oil cylinder are substituted for by above-mentioned, piston rod that can be by support bar 252 directly with cylinder or oil cylinder is connected, and piston rod that also can be by linkage indirectly with cylinder or oil cylinder is connected.
Support meanss second embodiment.
Refering to Fig. 7, the support meanss 25a of the present embodiment includes：Two hinged seat 251a and two support bar 252a.
Two hinged seat 251a are separately fixed at the both sides of main body of vehicle frame front end and hinged seat 251a bottom surface and are not less than the bottom surface of towing plate 23.
Two support bar 252a are corresponded respectively to be hinged on each hinged seat 251a and can up or down be overturn relative to hinged seat 251a.
Hinged seat 215a may include that two are hinged seat board 2511a and the rotating shaft 254 being rotatably connected on two hinged seats on 2511a.During working condition, support bar 252a 254a axis can be downwardly turned over around the shaft and be supported in ground, so as to facilitate semitrailer to carry out getting rid of extension lifting operation, it is ensured that the security and stability after lifting, prevent the anterior stress of trailer from damaging；During off working state, support bar 252a 254a axis can be flipped up around the shaft and be retracted to the bottom surface that its bottom surface is not less than towing plate 23, it is ensured that tractor and semitrailer are normally mounted, and do not influence normal transport to operate.
Support bar 252a can switch on working condition or off working state by overturning by hand, can also realize and overturn by drive mechanism.
Drive mechanism can be the actuating units such as oil cylinder or cylinder.
Refering to Fig. 8, in the present embodiment, drive mechanism 253a includes：The oil cylinder 2531a and toggle 2533a being hinged with cylinder piston rod 2532a, the other end that toggle 2533a is not connected with cylinder piston rod 2532a is fixedly connected with rotating shaft 254, support bar 252a is connected by toggle 2533a with hydraulic cylinder 2531a piston rod 2532a, when piston rod 2532a stretches out or retracts, drive toggle 2532a rotations, so as to drive rotating shaft 254a to rotate forward or backwards by toggle 2532a rotations, and then drive the support bar 252a being fixedly connected with rotating shaft 254a to be flipped up or downwardly turn over.
Similarly, in other embodiments, also above-mentioned oil cylinder can be substituted for cylinder.
The preferable possible embodiments of the present invention are these are only, are not limited the scope of the invention the equivalent structure change made by all utilization description of the invention and accompanying drawing content is all contained in protection scope of the present invention.
Claims (12)
1. a kind of self-discharging semitrailer vehicle frame, including：Main body of vehicle frame, the towing pin for being arranged on the towing plate of main body of vehicle frame front bottom surface and being arranged on the towing plate, it is characterised in that the position before the correspondence towing pin of the main body of vehicle frame front end has support meanss.
2. self-discharging semitrailer vehicle frame as claimed in claim 1, it is characterised in that the support meanss can be supported in ground by lifting, upset or expanding-contracting action, or, it is retracted to the bottom surface that its bottom surface is not less than towing plate.
3. self-discharging semitrailer vehicle frame as claimed in claim 2, it is characterised in that the support meanss include：Two support bases and two support bars, two support base is separately fixed at the both sides of the main body of vehicle frame front end and the bottom surface of the support base is not less than the towing plate bottom surface, and each support bar one support base of correspondence can simultaneously be moved up and down relative to the support base.
4. self-discharging semitrailer vehicle frame as claimed in claim 3, it is characterised in that gear and the rotating mechanism to be rotated with moving gear are provided with the support base, the support bar is disposed with the rack engaged with the gear along its length.
5. self-discharging semitrailer vehicle frame as claimed in claim 4, it is characterised in that the rotating mechanism includes rocking handle, and the rocking handle and the gear are coaxially connected, or are connected by transmission mechanism with the gear.
6. self-discharging semitrailer vehicle frame as claimed in claim 3, it is characterised in that locking device is provided between the support base and support bar, the locking device includes：The locking hole that is arranged on support base, be arranged on the support bar close top and bottom position multiple positioning holes and lock pin, the lock pin inserts the locking hole and any positioning hole and the support bar is fixed on the support base.
7. self-discharging semitrailer vehicle frame as claimed in claim 3, it is characterised in that the support base is in sleeve-shaped, the support bar is arranged in the support base of sleeve-shaped.
8. self-discharging semitrailer vehicle frame as claimed in claim 7, it is characterised in that the support bar includes：The body of rod supports sole with body of rod bottom one is hinged on, the Breadth Maximum of the body of rod is less than the Breadth Maximum of the support base inner cylinder and can moved up and down in the support base, the width of the support sole is more than the Breadth Maximum of the support base inner cylinder, the bottom surface of the support base is higher than the setpoint distance of towing plate bottom surface one, to form a receiving space to accommodate the support sole in the support base bottom surface.
9. self-discharging semitrailer vehicle frame as claimed in claim 3, it is characterised in that the support bar is moved up and down using hydraulic cylinder or cylinder as power source relative to the support base.
10. self-discharging semitrailer vehicle frame as claimed in claim 2, it is characterised in that the support meanss include：Two hinged seats and two support bars, two hinged seat is separately fixed at the both sides of the main body of vehicle frame front end and the bottom surface of the hinged seat and is not less than the towing plate bottom surface, two support bar is corresponded respectively to be hinged on each hinged seat and can up or down be overturn relative to hinged seat, and when the support bar is flipped up in place, the bottom surface of support bar is not less than the bottom surface of the towing plate.
11. self-discharging semitrailer vehicle frame as claimed in claim 10, it is characterised in that the support bar is connected with the piston rod of hydraulic cylinder or cylinder by toggle and realizes and spin upside down.
12. a kind of self-discharging semitrailer, including vehicle frame, it is arranged at the walking mechanism of vehicle frame lower rear and the compartment being arranged above vehicle frame, elevating ram is installed between the compartment front end and vehicle frame front end, it is characterised in that the vehicle frame is the dumper frame described in claim 1-11 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151776.2A CN107199933B (en) | 2016-03-16 | 2016-03-16 | Self-unloading semitrailer and frame thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610151776.2A CN107199933B (en) | 2016-03-16 | 2016-03-16 | Self-unloading semitrailer and frame thereof |
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| Publication Number | Publication Date |
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| CN107199933A true CN107199933A (en) | 2017-09-26 |
| CN107199933B CN107199933B (en) | 2024-06-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610151776.2A Active CN107199933B (en) | 2016-03-16 | 2016-03-16 | Self-unloading semitrailer and frame thereof |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107933714A (en) * | 2017-11-28 | 2018-04-20 | 东风商用车有限公司 | Trailer for whole-vehicle field test of tractor |
| CN108275056A (en) * | 2018-03-19 | 2018-07-13 | 赵彬 | A kind of no special self-discharging semitrailer of subframe container |
| CN108867277A (en) * | 2018-07-11 | 2018-11-23 | 中安（天津）航空设备有限公司 | A kind of walking mechanism |
| CN110171342A (en) * | 2019-05-09 | 2019-08-27 | 惠州市明恒梯井有限公司 | Rotary hopper-type compartment |
| CN110509878A (en) * | 2019-09-28 | 2019-11-29 | 江苏海丰交通设备科技有限公司 | A kind of semitrailer rear defence thick stick device |
| CN113246923A (en) * | 2021-07-01 | 2021-08-13 | 合肥正浩机械科技有限公司 | Supporting leg of semitrailer |
| CN114312684A (en) * | 2022-01-14 | 2022-04-12 | 洛阳中集凌宇汽车有限公司 | Get rid of and hang structure concrete mixing transportation semitrailer |
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| CN107933714A (en) * | 2017-11-28 | 2018-04-20 | 东风商用车有限公司 | Trailer for whole-vehicle field test of tractor |
| CN108275056A (en) * | 2018-03-19 | 2018-07-13 | 赵彬 | A kind of no special self-discharging semitrailer of subframe container |
| CN108867277A (en) * | 2018-07-11 | 2018-11-23 | 中安（天津）航空设备有限公司 | A kind of walking mechanism |
| CN110171342A (en) * | 2019-05-09 | 2019-08-27 | 惠州市明恒梯井有限公司 | Rotary hopper-type compartment |
| CN110509878A (en) * | 2019-09-28 | 2019-11-29 | 江苏海丰交通设备科技有限公司 | A kind of semitrailer rear defence thick stick device |
| CN113246923A (en) * | 2021-07-01 | 2021-08-13 | 合肥正浩机械科技有限公司 | Supporting leg of semitrailer |
| CN114312684A (en) * | 2022-01-14 | 2022-04-12 | 洛阳中集凌宇汽车有限公司 | Get rid of and hang structure concrete mixing transportation semitrailer |
| CN114312684B (en) * | 2022-01-14 | 2023-08-29 | 洛阳中集凌宇汽车有限公司 | Concrete mixing transportation semitrailer with drop and pull structure |
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