CN108909857A - A kind of continuous pipe oil field operation semitrailer - Google Patents

A kind of continuous pipe oil field operation semitrailer Download PDF

Info

Publication number
CN108909857A
CN108909857A CN201810558532.5A CN201810558532A CN108909857A CN 108909857 A CN108909857 A CN 108909857A CN 201810558532 A CN201810558532 A CN 201810558532A CN 108909857 A CN108909857 A CN 108909857A
Authority
CN
China
Prior art keywords
side bar
main side
stringer
continuous pipe
oil field
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.)
Pending
Application number
CN201810558532.5A
Other languages
Chinese (zh)
Inventor
刘其山
黄璜
杨武红
邢维民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SINOTRUCK HUBEI HUAWIN SPECIAL VEHICLE CO Ltd
Original Assignee
SINOTRUCK HUBEI HUAWIN SPECIAL VEHICLE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SINOTRUCK HUBEI HUAWIN SPECIAL VEHICLE CO Ltd filed Critical SINOTRUCK HUBEI HUAWIN SPECIAL VEHICLE CO Ltd
Priority to CN201810558532.5A priority Critical patent/CN108909857A/en
Publication of CN108909857A publication Critical patent/CN108909857A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B62LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62DMOTOR VEHICLES; TRAILERS
    • B62D53/00Tractor-trailer combinations; Road trains
    • B62D53/04Tractor-trailer combinations; Road trains comprising a vehicle carrying an essential part of the other vehicle's load by having supporting means for the front or rear part of the other vehicle
    • B62D53/06Semi-trailers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60PVEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P3/00Vehicles adapted to transport, to carry or to comprise special loads or objects
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60PVEHICLES ADAPTED FOR LOAD TRANSPORTATION OR TO TRANSPORT, TO CARRY, OR TO COMPRISE SPECIAL LOADS OR OBJECTS
    • B60P7/00Securing or covering of load on vehicles
    • B60P7/06Securing of load
    • B60P7/08Securing to the vehicle floor or sides
    • B60P7/12Securing to the vehicle floor or sides the load being tree-trunks, beams, drums, tubes, or the like

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Vehicle Body Suspensions (AREA)

Abstract

The invention discloses a kind of continuous pipe oil field operation semitrailer, the vehicle frame including roller and oil field operation for carrying continuous pipe, vehicle frame include main side bar and the front haulage structure being successively set on main side bar, middle part large span structure and after travel structure;Front haulage structure is side bar bearing structure and is arranged in main side bar front that middle part large span structure setting is in the middle part of main side bar, and the rear structure setting that travels is at main side bar rear portion;It is set between front haulage structure and middle part large span structure in the middle part large space being equipped with there are two hydraulic leg, roller setting middle part large span structure;Traveling structure includes suspension system and axle tire running system afterwards, axle tire running system is fixed with suspension system, body crossbeam in all directions is equipped between suspension system and middle part large span structure, the both ends of octahedra crossbeam are fixedly connected with two side stringers of main side bar respectively.Present invention reduces semitrailer center of gravity, indivisible overlength continuous pipe is securely and reliably transported in realization.

Description

A kind of continuous pipe oil field operation semitrailer
Technical field
The present invention relates to continuous pipe transport fields, particularly relate to a kind of continuous pipe oil field operation semitrailer.
Background technique
Continuous pipe range reaches 7000m or more, is mounted on roller, realizes folding and unfolding movement.Roller and larger, the ruler of continuous pipe self weight Very little larger, diameter reaches 4000mm or more, and wide 2400mm or more, weight is in 50T or more.In highway transportation, because weight is big, center of gravity Height, occupied space is big, and common low flat bed semi trailer is difficult to meet the requirements.To solve concentrfated load and highway limit for height, passability etc. Problem, the present invention develop a kind of continuous pipe oil field operation semitrailer, realize safe transportation, good passability, center of gravity It is low, transportation safety.In addition to the continuous pipe of transport, the indivisible tube wire such as overlength cable and optical cable can also be transported.
Summary of the invention
To solve the problems mentioned above in the background art, the purpose of the present invention is to provide a kind of continuous pipe oil field operations Semitrailer.
To achieve the above object, the technical scheme adopted by the invention is as follows:
A kind of continuous pipe oil field operation semitrailer, the vehicle including roller and oil field operation for carrying continuous pipe Frame, the vehicle frame include main side bar and the front haulage structure being successively set on main side bar, middle part large span structure and rear traveling Structure;
The front haulage structure is side bar bearing structure and is arranged in the main side bar front, the middle part large span structure It is arranged in the middle part of the main side bar, structure setting is travelled after described at the main side bar rear portion;
Hydraulic leg there are two setting between the front haulage structure and the middle part large span structure, two described hydraulic Supporting leg is symmetrically mounted on the inboard beams wall of two side stringers of the main side bar, and the roller is arranged in the middle part large span In the middle part large space that structure is equipped with;
Traveling structure includes suspension system and axle tire running system after described, the axle tire running system and institute It states suspension system to fix, all directions body crossbeam, the octahedral is equipped between the suspension system and the middle part large span structure The both ends of body crossbeam are fixedly connected with two side stringers of the main side bar respectively.
In above-mentioned technical proposal, the front haulage structure structure includes traction crossbeam, the both ends difference of the traction crossbeam It is fixedly connected with the front of two side stringers of main side bar, towing pin seat board is equipped in the middle part of the traction crossbeam, is led described Draw key seat plate equipped with towing pin.
In above-mentioned technical proposal, the inside in the middle part of two side stringers of the main side bar has been equipped with reinforcement support plate.
In above-mentioned technical proposal, the middle part large span structure setting has the middle part large space of installation cylinder position, in institute The position that the interior side-lower of large span structure avoids roller in the middle part of stating is welded with middle cross beam.
In above-mentioned technical proposal, at I-shaped structure in the middle part of the side stringer of the main side bar.
In above-mentioned technical proposal, the suspension system is including middle stringer, several back crossbeams after two and is arranged two A plurality of rear middle cross beam after item between middle stringer, the both ends of every rear middle stringer are respectively and on all directions body crossbeam and main side bar Corresponding side crossbeam is fixedly connected, middle stringer and a line stringer after the both ends of every back crossbeam are respectively corresponded with one It is fixedly connected, the both ends of middle cross beam are respectively corresponded after every is fixedly connected with rear middle stringer described in two.
In above-mentioned technical proposal, the axle tire running system includes suspension and axle tire, and the suspension is welded on In after described on stringer, the axle tire is assemblied on suspension 11.
In above-mentioned technical proposal, each hydraulic leg includes hydraulic cylinder, supporting leg and mechanical lock, the hydraulic cylinder It is fixed on the side stringer of the main side bar, the supporting leg is fixed on the output shaft of the hydraulic cylinder, and the mechanical lock is set It sets on the supporting leg.
In above-mentioned technical proposal, multiple support beams are additionally provided in the side stringer front of the main side bar.
Compared with prior art, the beneficial effects of the invention are as follows:
1, it is connect by towing pin with tractor, realizes that de- hang is transported, improve conevying efficiency.
2, hydraulic leg is housed, hydraulic leg band hydraulic cylinder, supporting leg and mechanical lock guarantee de- hang on the main side bar of vehicle frame Rear frame support is reliable for a long time.
3, vehicle frame is carried using side bar, and middle part large span structure setting is in the middle part of main side bar, roller setting middle part large span In the middle part large space of structure, for roller some below main side bar, the vehicle that can reduce roller center of gravity and transport vehicle is high Degree realizes safe transportation and good passability.
4, the position that side-lower avoids roller in middle part large span structure is welded with middle cross beam, increases vehicle frame torsional strength.
5, vehicle frame rear design has suspension system, suspension and axle tire, and axle tire is connect by suspension with suspension system, Suspension is in rear on stringer, and for suspension system in addition to rear middle stringer, another design has back crossbeam, rear middle cross beam, it is rear in stringer with Side stringer is linked into an integrated entity by back crossbeam, is linked into an integrated entity between rear middle stringer by rear middle cross beam, is increased whole antitorque Bending resistance, reducing middle part concentrfated load effect keeps vehicle frame rear portion upwardly-deformed.
The present invention uses the side stringer load-bearing of main side bar, is designed to large span in the middle part of main side bar, by roller and continuous pipe Decentralization reduces height.After being arranged on middle stringer, rear middle stringer, side stringer, octahedron are horizontal for suspension system and driving system Beam and side crossbeam link into an integrated entity, in the place assembly middle cross beam for not influencing roller installation between the side stringer in the middle part of main side bar, no The bending resistance torsional strength for only increasing continuous pipe oil field operation semitrailer, can also realize and lower the center of gravity, and realize safe and reliable Transport indivisible overlength continuous pipe.
Detailed description of the invention
Fig. 1 is positive structure diagram of the invention;
Fig. 2 is overlooking structure diagram of the invention;
Description of symbols:
1, roller;2, main side bar;2-1, side stringer;2-1a, reinforce support plate;2-1b, I-shaped structure;2-2, side crossbeam; 3, hydraulic leg;4, all directions body crossbeam;5, traction crossbeam;6, towing pin seat board;6-1, towing pin;7, middle cross beam;8, it is indulged in rear Beam;9, back crossbeam;10, rear middle cross beam;11, suspension;12, axle tire;13, support beam.
Specific embodiment
To be easy to understand the technical means, the creative features, the aims and the efficiencies achieved by the present invention, below with reference to The drawings and specific embodiments, how the present invention is further explained implements.
As depicted in figs. 1 and 2, a kind of continuous pipe oil field operation semitrailer, including the roller 1 for carrying continuous pipe And the vehicle frame of oil field operation, vehicle frame include main side bar 2 and the front haulage structure being successively set on main side bar 2, middle part large span Structure and after travel structure;Front haulage structure is side bar bearing structure and is arranged in main 2 front of side bar that middle part large span structure is set It sets at main 2 middle part of side bar, the rear structure setting that travels is at main 2 rear portion of side bar;Between front haulage structure and middle part large span structure If two hydraulic legs 3 are symmetrically mounted on the inboard beams wall of two side stringer 2-1 of main side bar 2 there are two hydraulic leg 3, In the middle part large space that the setting of roller 1 middle part large span structure is equipped with, the vehicle that can reduce by 1 center of gravity of roller and transport vehicle is high Degree;
Traveling structure includes suspension system and axle tire running system afterwards, and axle tire running system and suspension system are solid It is fixed, be equipped with all directions body crossbeam 4 between suspension system and middle part large span structure, the both ends of octahedra crossbeam 4 respectively with main side Two side stringer 2-1 of beam 2 are fixedly connected.
In the present invention, front haulage structure structure includes traction crossbeam 5, the both ends of traction crossbeam 5 respectively with main side bar 2 two The front of a side stringer 2-1 is fixedly connected, and towing pin seat board 6 is equipped in the middle part of traction crossbeam 5, is equipped on towing pin seat board 6 Towing pin 6-1.
In the present invention, has on the inside of the side stringer 2-1 at main 2 middle part of side bar and reinforce support plate 2-1a, increase side stringer 2-1's Bending strength.
In the present invention, middle part large span structure setting has the middle part large space of installation 1 position of roller, in middle part large span knot The position that side-lower avoids roller 1 in structure is welded with middle cross beam 7, increases middle part anti-twisting property, and then can effectively adapt to desert Road conditions.
In the present invention, I-shaped structure 2-1b is designed in the middle part of two side stringer 2-1 of main side bar 2, overcomes 1 mistake of roller Cause the deformation of vehicle frame, and again convenient for arrangement spool.
In the present invention, suspension system is indulged including middle stringer 8, several back crossbeams 9 after two and in being arranged after two Middle cross beam 10 after a plurality of between beam 8, the both ends of middle stringer 8 are corresponding on all directions body crossbeam 4 and main side bar 2 respectively after every Side crossbeam 2-2 is fixed, middle stringer 8 and a line stringer 2-1 is fixed connects after every 9 both ends of back crossbeam are respectively corresponded with one It connects, the both ends of middle cross beam 10 are respectively corresponded after every is fixedly connected with stringer 8 middle after two.The outstanding of main 2 rear portion of side bar is set For frame system in addition to rear middle stringer 8, another design has back crossbeam 9, rear middle cross beam 10, and rear middle stringer 8 and side stringer 2-1 passes through back Crossbeam 9 links into an integrated entity, and is linked into an integrated entity between rear middle stringer 8 by rear middle cross beam 10, increase torsion resistant and bending resistant ability, in reduction Concentrfated load effect in portion's keeps vehicle frame rear portion upwardly-deformed.
In the present invention, axle tire running system includes suspension 11 and axle tire 12, the middle stringer 8 after being welded on of suspension 11 On, axle tire 12 is assemblied on suspension 11.
In the present invention, each hydraulic leg 3 includes hydraulic cylinder, supporting leg and mechanical lock, and hydraulic cylinder is fixed on main side bar 2 Side stringer 2-1 on, supporting leg is fixed on the output shaft of hydraulic cylinder, mechanical lock be arranged on supporting leg;Hydraulic leg 3 can meet It is de- for a long time to hang support requirement.
In the present invention, multiple support beams 13 are additionally provided in the side front stringer 2-1 of main side bar 2.
When transport, tractor saddle and the towing pin 6-1 in the present invention are connected firmly, by the mechanical lock of hydraulic leg 3 Unlock, and hydraulic cylinder is risen in place, disengage bearing of the supporting leg to ground.Continuous pipe oil field operation semi-mounted provided by the invention Transport vehicle is moved with tractor, completes transport.By other attachmentes on continuous pipe oil field operation semitrailer, Complete continuous pipe draw-in and draw-off function.It, will by hydraulic cylinder when tractor to be disengaged and continuous pipe oil field operation semitrailer Supporting leg decline, supports ground, locks mechanical lock, tractor saddle and towing pin 6-1 is disengaged, can drive away tractor.
The present invention uses the side stringer 2-1 load-bearing of main side bar 2, is designed to large span in the middle part of main side bar 2, by roller and continuously The decentralization of pipe reduces height, and center of gravity is low, while transport vehicle can be made to have good passability on road, to realize Reliable and secure transport.After being arranged on middle stringer 8, rear middle stringer 8, side stringer 2-1, octahedron are horizontal for suspension system and driving system Beam 4 and side crossbeam 2-2 link into an integrated entity, in the place for not influencing the installation of roller 1 between the both sides stringer 2-1 at main 2 middle part of side bar Middle cross beam 7 is assembled, increases the bending resistance torsional strength of continuous pipe oil field operation semitrailer, realizes indivisible continuous pipe Transport.
Finally, it is stated that the above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to compared with Good embodiment describes the invention in detail, those skilled in the art should understand that, it can be to skill of the invention Art scheme is modified or replaced equivalently, and without departing from the objective and range of technical solution of the present invention, should all be covered at this In the scope of the claims of invention.

Claims (8)

1. a kind of continuous pipe oil field operation semitrailer, the vehicle including roller (1) and oil field operation for carrying continuous pipe Frame, which is characterized in that the vehicle frame includes that main side bar (2) and the front haulage structure being successively set on main side bar (2), middle part are big Span structure and after travel structure;
The front haulage structure is side bar bearing structure and is arranged in main side bar (2) front, the middle part large span structure Setting travels structure setting at main side bar (2) rear portion in the middle part of the main side bar (2) after described;
There are two setting between the front haulage structure and the middle part large span structure hydraulic leg (3), two described hydraulic Supporting leg (3) is symmetrically mounted on the inboard beams wall of two side stringers (2-1) of the main side bar (2), and roller (1) setting exists In the middle part large space that the middle part large span structure is equipped with;
Traveling structure includes suspension system and axle tire running system after described, and the axle tire running system is hanged with described Frame system is fixed, and all directions body crossbeam (4), the octahedron are equipped between the suspension system and the middle part large span structure The both ends of crossbeam (4) are fixedly connected with two side stringers (2-1) of the main side bar (2) respectively.
2. a kind of continuous pipe oil field operation semitrailer according to claim 1, which is characterized in that the front haulage knot Structure structure includes traction crossbeam (5), the both ends of the traction crossbeam (5) two side stringer (2- with the main side bar (2) respectively 1) front is fixedly connected, and towing pin seat board (6) is equipped in the middle part of the traction crossbeam (5), on the towing pin seat board (6) Equipped with towing pin (6-1).
3. a kind of continuous pipe oil field operation semitrailer according to claim 1, which is characterized in that in the main side bar (2) the inside in the middle part of two side stringers (2-1), which is equipped with, reinforces support plate (2-1a).
4. a kind of continuous pipe oil field operation semitrailer according to claim 1, which is characterized in that big at the middle part The position that the interior side-lower of span structure avoids roller (1) is welded with middle cross beam (7).
5. a kind of continuous pipe oil field operation semitrailer according to claim 1, which is characterized in that the main side bar (2) at I-shaped structure (2-1b) in the middle part of side stringer (2-1).
6. a kind of continuous pipe oil field operation semitrailer according to claim 1, which is characterized in that the suspension system Including stringer (8) middle after two, several back crossbeams (9) and it is arranged between stringer (8) middle after two a plurality of rear middle horizontal The both ends of beam (10), every rear middle stringer (8) are solid with the side crossbeam (2-2) of all directions body crossbeam (4) and main side bar (2) respectively Fixed connection, middle stringer (8) and a line stringer (2-1) fixation after every back crossbeam (9) both ends are respectively corresponded with one It connects, the both ends of middle cross beam (10) are respectively corresponded after every is fixedly connected with rear middle stringer (8) described in two;
The axle tire running system includes suspension (11) and axle tire (12), the suspension (11) be welded on it is described after in On stringer (8), the axle tire (12) is assemblied on suspension (11).
7. a kind of continuous pipe oil field operation semitrailer according to claim 1, which is characterized in that each described hydraulic Supporting leg (3) includes hydraulic cylinder, supporting leg and mechanical lock, and the hydraulic cylinder is fixed on the side stringer (2-1) of the main side bar (2) On, the supporting leg is fixed on the output shaft of the hydraulic cylinder, and the mechanical lock is arranged on the supporting leg.
8. a kind of continuous pipe oil field operation semitrailer according to claim 1, which is characterized in that in the main side bar (2) multiple support beams (13) are additionally provided on front side stringer (2-1).
CN201810558532.5A 2018-06-01 2018-06-01 A kind of continuous pipe oil field operation semitrailer Pending CN108909857A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810558532.5A CN108909857A (en) 2018-06-01 2018-06-01 A kind of continuous pipe oil field operation semitrailer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810558532.5A CN108909857A (en) 2018-06-01 2018-06-01 A kind of continuous pipe oil field operation semitrailer

Publications (1)

Publication Number Publication Date
CN108909857A true CN108909857A (en) 2018-11-30

Family

ID=64418119

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810558532.5A Pending CN108909857A (en) 2018-06-01 2018-06-01 A kind of continuous pipe oil field operation semitrailer

Country Status (1)

Country Link
CN (1) CN108909857A (en)

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101190456A (en) * 2006-11-21 2008-06-04 中国国际海运集装箱(集团)股份有限公司 Liquid metal bag transport vehicle
CN201092345Y (en) * 2007-08-27 2008-07-30 李承相 Light semi-trailer
CN201914319U (en) * 2011-01-27 2011-08-03 中集车辆(集团)有限公司 Semitrailer frame and semitrailer with same
CN202063186U (en) * 2011-05-23 2011-12-07 南车眉山车辆有限公司 Whole vehicle frame of low-bed transportation vehicle
CN202669944U (en) * 2012-07-07 2013-01-16 烟台杰瑞石油装备技术有限公司 Heavy semi-trailer for coiled tubing equipment
CN202743349U (en) * 2012-07-12 2013-02-20 中国石油天然气集团公司 Sunken roller fixing semitrailer for continuous tube of oil field
CN105459879A (en) * 2015-08-10 2016-04-06 山东科瑞机械制造有限公司 Hydraulically-driven continuous oil pipe roller transport vehicle
CN205930900U (en) * 2016-08-22 2017-02-08 山东红荷专用汽车有限公司 Height bears integrative lightweight frame
CN108082286A (en) * 2017-12-04 2018-05-29 中国石油天然气集团公司 Continuous pipe drilling machine roller transport vehicle
CN208731082U (en) * 2018-06-01 2019-04-12 中国重汽集团湖北华威专用汽车有限公司 Continuous pipe oil field operation semitrailer

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101190456A (en) * 2006-11-21 2008-06-04 中国国际海运集装箱(集团)股份有限公司 Liquid metal bag transport vehicle
CN201092345Y (en) * 2007-08-27 2008-07-30 李承相 Light semi-trailer
CN201914319U (en) * 2011-01-27 2011-08-03 中集车辆(集团)有限公司 Semitrailer frame and semitrailer with same
CN202063186U (en) * 2011-05-23 2011-12-07 南车眉山车辆有限公司 Whole vehicle frame of low-bed transportation vehicle
CN202669944U (en) * 2012-07-07 2013-01-16 烟台杰瑞石油装备技术有限公司 Heavy semi-trailer for coiled tubing equipment
CN202743349U (en) * 2012-07-12 2013-02-20 中国石油天然气集团公司 Sunken roller fixing semitrailer for continuous tube of oil field
CN105459879A (en) * 2015-08-10 2016-04-06 山东科瑞机械制造有限公司 Hydraulically-driven continuous oil pipe roller transport vehicle
CN205930900U (en) * 2016-08-22 2017-02-08 山东红荷专用汽车有限公司 Height bears integrative lightweight frame
CN108082286A (en) * 2017-12-04 2018-05-29 中国石油天然气集团公司 Continuous pipe drilling machine roller transport vehicle
CN208731082U (en) * 2018-06-01 2019-04-12 中国重汽集团湖北华威专用汽车有限公司 Continuous pipe oil field operation semitrailer

Similar Documents

Publication Publication Date Title
US7198298B2 (en) Movable subframe for semi-trailers
US4163578A (en) Main frame assembly for road vehicles
CN202827805U (en) Longitudinal-beam-free van semi trailer and compartment structure thereof
CN208278162U (en) A kind of aluminum-steel hybrid lightweight vehicle frame
CN208731082U (en) Continuous pipe oil field operation semitrailer
CN205930900U (en) Height bears integrative lightweight frame
CN206679072U (en) Novel semi-trailer
CA2500571A1 (en) Vehicle frame
CN202806918U (en) Synchronously steered hydraulic heavy over-limit transportation trailer
CN108909857A (en) A kind of continuous pipe oil field operation semitrailer
CN201784725U (en) Half-trailer towing tractor
CN211568094U (en) Novel trolley frame
CN109792866A (en) A kind of harvester cutting bench trailer wagon
CN211308584U (en) Underneath type railway wagon bogie wheel set radial device
CZ267592A3 (en) Frame for agricultural trailer
EP2873558B1 (en) Semi-trailer for transporting goods
CN208881905U (en) A kind of automobile rear longitudinal girder assembly structure
CN208278183U (en) A kind of frame system and frame of closed-type semitrailer
KR101812220B1 (en) Wing body integrated trailer and method for manufacturing the same
CN207523786U (en) A kind of subframe
CN213322975U (en) Large-tonnage type light dumper frame and mining dumper
CN210454368U (en) Draw gear, semitrailer frame and semitrailer
CN213322976U (en) Large-tonnage gradual change section type light dumper frame and mining dumper
CN220924286U (en) Dumper frame and dumper with same
CN218536848U (en) Workover rig frame assembly without auxiliary frame

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20181130

RJ01 Rejection of invention patent application after publication