CN106926910B - A kind of triangle crawler belt assist device - Google Patents
A kind of triangle crawler belt assist device Download PDFInfo
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- CN106926910B CN106926910B CN201511021634.6A CN201511021634A CN106926910B CN 106926910 B CN106926910 B CN 106926910B CN 201511021634 A CN201511021634 A CN 201511021634A CN 106926910 B CN106926910 B CN 106926910B
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- assist device
- mountainous region
- pipeline construction
- oil cylinder
- triangle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/06—Endless track vehicles with tracks without ground wheels
- B62D55/075—Tracked vehicles for ascending or descending stairs, steep slopes or vertical surfaces
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Body Structure For Vehicles (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The invention discloses a kind of triangle crawler belt assist devices, belong to mountainous region technical field of pipeline construction.The assist device is connect with mountainous region pipeline construction equipment tail portion, which includes: triangle pedrail mechanism (10), luffing jib (20) and amplitude oil cylinder (30)；The first end of the luffing jib (20) and the triangle pedrail mechanism (10) are articulated and connected, and the second end of the luffing jib (20) and the mountainous region pipeline construction equipment tail portion are articulated and connected；The first end of the amplitude oil cylinder (30) is connect with the luffing jib (20), and the second end of the amplitude oil cylinder (30) is connect with the mountainous region pipeline construction equipment tail portion.The assist device can be effectively improved the ground contact pressure distribution of the main vehicle crawler belt of mountainous region pipeline construction equipment, improve the adhesive force between crawler belt and ground, it plays and increases mountainous region pipeline construction device drives power, prevent the effect glided, enable mountainous region pipeline construction equipment safe construction on 35 ° of ramps, walks safely on 40 ° of ramps.
Description
Technical field
The present invention relates to mountainous region technical field of pipeline construction, in particular to a kind of triangle crawler belt assist device.
Background technique
In alpine terrain pipeline construction, when the gradient of construction ground band is more than 30 °, conventional mountainous region sideboom tractor, welding
The ability to work of climbing capacity, ramp job stability and the safety of the mountainous regions pipeline construction equipment such as engineering truck etc. by
To limitation.In order to guarantee normal work of the above-mentioned mountainous region pipeline construction equipment in the pipeline construction of mountainous region, usually to take descending grade,
Repair the construction methods such as zigzag course.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems: descending grade and repairing it
The construction methods earth volume such as word road is very big, cost is high, very big to the destructiveness of landforms, vegetation；As people's environmental protection is anticipated
The construction method of zigzag course has been forbidden using descending grade and repaired to the raising of knowledge, some countries or state's inland lot.
Summary of the invention
Conventional mountainous region pipeline construction equipment can be provided and be pushed away in order to solve the above technical problem, the present invention provides one kind
The triangle crawler belt boosting of stability and safety when power, the climbing capacity for improving mountainous region pipeline construction equipment and abrupt slope work
Device.
Specifically, including following technical scheme:
A kind of triangle crawler belt assist device, the assist device are connect with mountainous region pipeline construction equipment tail portion, the boosting
Device includes: triangle pedrail mechanism, luffing jib and amplitude oil cylinder；The first end of the luffing jib and the triangle pedrail mechanism
Articulated connection, the second end of the luffing jib and the mountainous region pipeline construction equipment tail portion are articulated and connected；The amplitude oil cylinder
First end is connect with the luffing jib, and the second end of the amplitude oil cylinder is connect with the mountainous region pipeline construction equipment tail portion.
Further, the triangle pedrail mechanism includes bogie frame, 2 guide wheels, 1 driving wheel and crawler belt；Described 1
A driving wheel is mounted on the top of the bogie frame, and 2 guide wheels are separately mounted to the bottom both ends of the bogie frame；Institute
It states crawler belt and forms triangular track transmission around the periphery of the driving wheel and the guide wheel；The first end of the luffing jib
It is articulated and connected by the second luffing rotary shaft and the bogie frame.
Further, the assist device further include: connecting plate；The connecting plate and mountainous region pipeline construction equipment tail portion are solid
Fixed connection；The second end of the luffing jib is articulated and connected by the first luffing rotary shaft and the connecting plate.
Further, the assist device further include: variable-amplitude oil cylinder seat；One end of the variable-amplitude oil cylinder seat and the connection
Plate connection, the other end of the variable-amplitude oil cylinder seat are connect with the second end of the amplitude oil cylinder.
Further, the assist device further include: damper mechanism；The damper mechanism includes: spring cushion, and 2
Vibration damping pin shaft and 2 shock-absorbing spring seats；2 shock-absorbing spring seats are separately fixed on the bogie frame and the luffing jib
On, the both ends of the spring cushion pass through the vibration damping pin shaft respectively and the shock-absorbing spring seat is articulated and connected.
Further, the triangle pedrail mechanism further include: thrust wheel；The bottom of the bogie frame is arranged in the thrust wheel
Portion.
Further, the amplitude oil cylinder is nitrogen liquid composite oil cylinder.
The beneficial effect of technical solution provided in an embodiment of the present invention is:
The embodiment of the present invention is used for mountainous region pipeline and applies by combining triangle pedrail mechanism with luffing jib to have obtained one kind
The assist device of work.The assist device of the embodiment of the present invention is connected with the tail portion of mountainous region pipeline construction equipment, it can be effective
Improve the ground contact pressure distribution of the main vehicle crawler belt of mountainous region pipeline construction equipment, improves the adhesive force between crawler belt and ground, play increase
Mountainous region pipeline construction device drives power, the effect for preventing mountainous region pipeline construction equipment from gliding, enables mountainous region pipeline construction equipment
The safe construction on 35 ° of ramps is walked safely on 40 ° of ramps.And assist device structure letter provided in an embodiment of the present invention
Single, cost is relatively low.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the structural schematic diagram of triangle crawler belt assist device provided in an embodiment of the present invention；
Fig. 2 is the side view of Fig. 1；
Fig. 3 is that triangle crawler belt assist device provided in an embodiment of the present invention is connect with mountainous region pipeline construction equipment walking mechanism
Schematic diagram；
Fig. 4 is the general assembly drawing of triangle crawler belt assist device provided in an embodiment of the present invention and mountainous region pipeline construction equipment；
Fig. 5 is the top view of Fig. 4；
Fig. 6 is the right view of Fig. 4.
Appended drawing reference respectively indicates:
100- assist device,
10- triangle pedrail mechanism,
101- bogie frame, 102- guide wheel, 103- crawler belt, 104- thrust wheel, 105- hold out against lead screw,
106- nut, 107- driving speed reducer, 108- driving wheel,
20- luffing jib,
30- amplitude oil cylinder,
40- amplitude oil cylinder axis,
50- connecting plate,
60- connecting shaft,
70- variable-amplitude oil cylinder seat,
801- the first luffing rotary shaft, 802- the second luffing rotary shaft,
90- damper mechanism,
901- spring cushion, 902- vibration damping pin shaft, 903- shock-absorbing spring seat,
The mountainous region 200- pipeline construction equipment.
Specific embodiment
To keep technical solution of the present invention and advantage clearer, below in conjunction with attached drawing to embodiment of the present invention make into
One step it is described in detail.
The embodiment of the present invention provides a kind of triangle crawler belt assist device, the assist device and mountainous region pipeline construction equipment tail portion
Connection referring to Fig. 1 and combines Fig. 2, which includes: triangle pedrail mechanism 10, luffing jib 20 and amplitude oil cylinder
30；
The first end and triangle pedrail mechanism 10 of luffing jib 20 are articulated and connected, and second end and the mountainous region pipeline of luffing jib 20 are applied
The articulated connection of 200 tail portion of construction equipment；
The first end of amplitude oil cylinder 30 is connect with luffing jib 20, the second end and mountainous region pipeline construction equipment of amplitude oil cylinder 30
The connection of 200 tail portions.
The walking mechanism of currently used mountainous region pipeline construction equipment is crawler type walking mechanism.In mountainous region pipeline construction
Cheng Zhong, when mountainous region pipeline construction equipment climb very steep slopes, its center of gravity can be to mobile, the trend tumbled under oriented slope below abrupt slope, this meeting
The grounding pressure on mountainous region pipeline construction equipment and ground is caused to have a generally triangular shape distribution, it may be assumed that for corresponding whole traveling crawler, place
Reduce in one end grounding pressure on slope, an end grounding pressure increases under the slope, at this moment on crawler belt slope, under slope both ends by ground branch
Support force is uneven, and crawler belt overall adhesion is caused to decline, and influences on equipment climbing capacity very big.To improve such case, the present invention
Embodiment provides a kind of assist device 100 based on triangle pedrail mechanism.Referring to Fig. 3~6, in the embodiment of the present invention, triangle is carried out
Connect by luffing jib 20 with the tail portion of mountainous region pipeline construction equipment 200 with mechanism 10, the control luffing jib 20 of amplitude oil cylinder 30 and
The angle of horizontal direction lands so that triangle pedrail mechanism 10 be made to remain.The assist device 100 of the embodiment of the present invention can
Certain support force is provided ground, obtain two crawler belt slopes upper end, the slope lower end of mountainous region pipeline construction equipment 200 can
Relatively uniform grounding pressure can not only alleviate equipment and tumble trend, but also mountainous region pipeline construction equipment 200 can be improved and climb energy
Power.Other than improving the grounding pressure of complete machine, improving the climbing capacity of host, which also has driving function, makes
The climbing capacity of mountainous region pipeline construction equipment 200 further gets a promotion.To sum up, assist device provided in an embodiment of the present invention
100 can be effectively improved the ground contact pressure distribution of the main vehicle crawler belt of mountainous region pipeline construction equipment 200, improve attached between crawler belt and ground
Put forth effort, plays the role of increasing 200 driving force of mountainous region pipeline construction equipment, prevent mountainous region pipeline construction equipment from gliding, make mountainous region
Pipeline construction equipment 200 can on 35 ° of ramps safe construction, walk safely on 40 ° of ramps.
Further, referring to Fig. 1, in above-mentioned assist device 100, triangle pedrail mechanism 10 includes bogie frame 101,2
102,1 driving wheels 108 of guide wheel and crawler belt 103；1 driving wheel 108 is mounted on the top of bogie frame 101,2 guide wheels
102 are separately mounted to the bottom both ends of bogie frame 101, i.e. 1 driving wheel 108 and 2 guide wheel 102 is located at triangle
Three apexes and driving wheel 108 are located at the top of guide wheel 102.Circle of the crawler belt 103 around driving wheel 108 and guide wheel 102
Circumferential surface forms triangular track transmission；The first end of luffing jib 20 is hingedly connected by the second luffing rotary shaft 802 with bogie frame 101
It connects.It will be appreciated by persons skilled in the art that crawler belt 103 described in the embodiment of the present invention includes that crawler belt itself and connection are carried out
The components such as the pin shaft with each chain link；Guide wheel 102 includes guide wheel itself and the pin for connecting guide wheel and bogie frame 101
The components such as axis.
Further, in above-mentioned assist device 100, triangle pedrail mechanism 10 further include hydraulic control system (in figure not
Show), the movement of assist device entirety is controlled.Referring to fig. 2, hydraulic control system is passed by driving speed reducer 107 equal
Dynamic device is connect with driving wheel 108, to control the movement of assist device.It can make assist device by Control System Design
100 fltting speed is synchronous with the holding of the speed of travel of mountainous region pipeline construction equipment 200, so that it is appropriate to provide constant and size
Boosting power.The hydraulic oil source of the assist device 100 can be used the hydraulic pump in parallel with mountainous region pipeline construction 200 traveling pumps of equipment and mention
For, when operator, which controls mountainous region pipeline construction equipment 200, to walk, the height of the traveling pump offer of mountainous region pipeline construction equipment 200
While pressure oil drives the running motor of mountainous region pipeline construction equipment 200, the high pressure oil that hydraulic pump connected in parallel provides is driven
Running motor in the hydraulic control system of assist device 100, to realize assist device 100 and mountainous region pipeline construction equipment
200 realize automatic linkage in walking, stopping, the movements such as upward slope, descending.
Further, referring to Fig. 1, above-mentioned assist device 100 further includes connecting plate 50.Referring to Fig. 3~6, connecting plate 50
Be fixedly connected with 200 tail portion of mountainous region pipeline construction equipment, the second end of luffing jib 20 by the first luffing rotary shaft 801 with connect
Plate 50 is articulated and connected.Connecting plate 50 can be connect with mountainous region pipeline construction equipment 200 by welding.Connecting plate 50 can be with
For shapes such as triangle or quadrangles.
Further, referring to Fig. 1, above-mentioned assist device 100 further includes variable-amplitude oil cylinder seat 70.The one of variable-amplitude oil cylinder seat 70
End is connect by connecting shaft 60 with connecting plate 50, and the other end of variable-amplitude oil cylinder seat 70 passes through amplitude oil cylinder axis 40 and amplitude oil cylinder 30
Second end connection.Similarly, the first end of amplitude oil cylinder 30 is connect also by amplitude oil cylinder axis 40 with luffing jib 20.
Further, referring to Fig. 1, in order to reduce the vibration of assist device 100 in the process of running with increase booster device
100 service life is additionally provided with damper mechanism 90 in above-mentioned assist device 100.Specifically, damper mechanism 90 subtracts including spring
Shake 901,2 vibration damping pin shafts 902 of device and 2 shock-absorbing spring seats 903.2 shock-absorbing spring seats 903 are separately fixed at bogie frame
On 101 and in luffing jib 20, the both ends of spring cushion 901 pass through vibration damping pin shaft 902 respectively and hingedly connect with shock-absorbing spring seat 903
It connects.
Further, it is also set up in triangle pedrail mechanism 10 referring to Fig. 1 in order to improve the load-bearing capacity of assist device 100
There is thrust wheel 104.The bottom of bogie frame 101 is arranged in thrust wheel 104.The quantity of thrust wheel 104 includes but is not limited to 3, excellent
Thrust wheel 104 is evenly distributed on 101 bottom of bogie frame by choosing.
Further, it referring to Fig. 1, in above-mentioned assist device 100, is additionally provided in triangle pedrail mechanism 10 and holds out against lead screw
105 and nut 106.It holds out against lead screw 105 to be arranged between two locating wheels 102,106 sets of nut on holding out against lead screw 105.Pass through
Adjusting nut 106 adjusts the tensioning degree of crawler belt 103 in the position for holding out against lead screw 105.Wherein, nut 106 can be hexagonal
Nut.
Further, in above-mentioned assist device 100, amplitude oil cylinder 30 uses nitrogen liquid composite oil cylinder, to guarantee helping
Pushing device 100 is advanced during (retrogressing), and triangle pedrail mechanism 10, which remains, to land, and realizes full landform walking.
Each main component in assist device 100 provided in an embodiment of the present invention can be using existing rule listed in table 1
The component of lattice number is assembled.
1 assist device allocation list of table
| Appended drawing reference | Title | Specifications and models |
| 101 | Bogie frame | SLV-01-0 |
| 20 | Luffing jib | SLV-02-0 |
| 30 | Liquid nitrogen composite oil cylinder | BYG-SLY-YG |
| 40 | Luffing rotary shaft | SLV-07 |
| 103 | High tooth caterpillar chain rail assembly | LMW171.45/27/G |
| 102 | Guide wheel assembly | WY10B.1.2 |
| 903 | Damping spring seat | SLV-12 |
| 902 | Damping pin shaft | SLV-10 |
| 901 | Spring damper | FYG83-87-50-60 |
| 104 | Thrust wheel | SC4A |
| 107 | Driving speed reducer | TM18VC-a-43/69-1 |
| 108 | Driving wheel | HY100A-0105 |
It should be noted that a Taishan pipeline construction equipment 200 need to install two sets of assist devices 100.It, will when construction
The walker welding of connecting plate 50 and mountainous region pipeline construction equipment 200 in assist device 100 is thus by assist device 100 and mountain
Ground pipeline construction equipment 200 connects.Welding position should be the driving wheel side of mountainous region pipeline construction equipment 200.
To sum up, assist device provided in an embodiment of the present invention is suitable for being that pipe machine, mountain are transported in mountainous region the pipeline construction of mountainous region
The mountainous regions pipeline construction equipment such as ground sideboom tractor, mobile welding workshop provides boosting power, is effectively improved the main vehicle of mountainous region pipeline construction equipment
The ground contact pressure distribution of crawler belt improves the adhesive force between crawler belt and ground, increases mountainous region pipeline construction device drives power, prevents mountain
Pipeline construction equipment in ground glides, and enables mountainous region pipeline construction equipment safe construction on 35 ° of ramps, the safety on 40 ° of ramps
Walking.
The above is merely for convenience of it will be understood by those skilled in the art that technical solution of the present invention, not to limit
The present invention.All within the spirits and principles of the present invention, any modification, equivalent replacement, improvement and so on should be included in this
Within the protection scope of invention.
Claims (5)
1. a kind of triangle crawler belt assist device, which is characterized in that the assist device is connect with mountainous region pipeline construction equipment tail portion,
The assist device includes: triangle pedrail mechanism (10), luffing jib (20), amplitude oil cylinder (30), hydraulic control system, speed reducer
(107), connecting plate (50) and variable-amplitude oil cylinder seat (70)；
The first end of the amplitude oil cylinder (30) is connect with the luffing jib (20),
The triangle pedrail mechanism (10) includes bogie frame (101), 2 guide wheels (102), 1 driving wheel (108), crawler belt
(103) lead screw (105) and nut (106) are held out against；
1 driving wheel (108) is mounted on the top of the bogie frame (101), and 2 guide wheels (102) are installed respectively
At the bottom both ends of the bogie frame (101)；
The crawler belt (103) forms triangle around the periphery of the driving wheel (108) and 2 guide wheels (102) and carries out
V belt translation；
The first end of the luffing jib (20) is articulated and connected by the second luffing rotary shaft (802) and the bogie frame (101)；
Described hold out against lead screw (105) are arranged between 2 guide wheels (102), and nut (106) setting is held out against described
On lead screw (105), holds out against the position on lead screw (105) described by adjusting the nut (106) and adjust the crawler belt
(103) tensioning degree；
The hydraulic control system is connect by speed reducer (107) with the driving wheel (108), and the hydraulic control system is used for
Control assist device and mountainous region pipeline construction equipment synchronous walking；
The connecting plate (50) is fixedly connected with mountainous region pipeline construction equipment tail portion；
The second end of the luffing jib (20) is articulated and connected by the first luffing rotary shaft (801) and the connecting plate (50)；
One end of the variable-amplitude oil cylinder seat (70) is connect with the connecting plate (50), the other end of the variable-amplitude oil cylinder seat (70) with
The second end of the amplitude oil cylinder (30) connects；
The amplitude oil cylinder (30) is nitrogen liquid composite oil cylinder.
2. assist device according to claim 1, which is characterized in that the assist device further include: damper mechanism (90)；
The damper mechanism (90) includes: spring cushion (901), 2 vibration damping pin shafts (902) and 2 shock-absorbing spring seats
(903)；
2 shock-absorbing spring seats (903) be separately fixed on the bogie frame (101) and the luffing jib (20) on, it is described
The both ends of spring cushion (901) pass through the vibration damping pin shaft (902) respectively and the shock-absorbing spring seat (903) is articulated and connected.
3. assist device according to claim 1, which is characterized in that the triangle pedrail mechanism (10) further include: Zhi Chong
It takes turns (104)；Bottom of thrust wheel (104) setting in the bogie frame (101).
4. assist device according to claim 1, which is characterized in that the connecting plate (50) and mountainous region pipeline construction equipment
The walker of tail portion is welded to connect.
5. assist device according to claim 1, which is characterized in that the connecting plate (50) is triangle or quadrangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511021634.6A CN106926910B (en) | 2015-12-31 | 2015-12-31 | A kind of triangle crawler belt assist device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511021634.6A CN106926910B (en) | 2015-12-31 | 2015-12-31 | A kind of triangle crawler belt assist device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106926910A CN106926910A (en) | 2017-07-07 |
| CN106926910B true CN106926910B (en) | 2019-08-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511021634.6A Active CN106926910B (en) | 2015-12-31 | 2015-12-31 | A kind of triangle crawler belt assist device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035757B (en) * | 2017-12-07 | 2019-11-26 | 辽宁工程技术大学 | A kind of travelling hydraulic support having auxiliary balance and driving capability of escaping |
| JP7344829B2 (en) * | 2020-03-31 | 2023-09-14 | 松本システムエンジニアリング株式会社 | felling work vehicle |
| CN114673209B (en) * | 2022-01-27 | 2023-06-30 | 中铁工程装备集团有限公司 | Hard rock ditcher and hard rock ditching method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3841424A (en) * | 1971-12-27 | 1974-10-15 | Caterpillar Tractor Co | Triangular track resilient bogie suspension |
| JP2010132173A (en) * | 2008-12-05 | 2010-06-17 | Hitachi Constr Mach Co Ltd | Stair ascending/descending work vehicle |
| CN202529053U (en) * | 2012-04-25 | 2012-11-14 | 厦门大学 | Triangular track walking device adopting spring to damp |
| CN104309479A (en) * | 2014-10-23 | 2015-01-28 | 中国石油天然气集团公司 | Boosting device |
| CN204355181U (en) * | 2015-01-08 | 2015-05-27 | 陈博华 | The mechanical trolley that a kind of having electronic eye is followed the tracks of |
-
2015
- 2015-12-31 CN CN201511021634.6A patent/CN106926910B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3841424A (en) * | 1971-12-27 | 1974-10-15 | Caterpillar Tractor Co | Triangular track resilient bogie suspension |
| JP2010132173A (en) * | 2008-12-05 | 2010-06-17 | Hitachi Constr Mach Co Ltd | Stair ascending/descending work vehicle |
| CN202529053U (en) * | 2012-04-25 | 2012-11-14 | 厦门大学 | Triangular track walking device adopting spring to damp |
| CN104309479A (en) * | 2014-10-23 | 2015-01-28 | 中国石油天然气集团公司 | Boosting device |
| CN204355181U (en) * | 2015-01-08 | 2015-05-27 | 陈博华 | The mechanical trolley that a kind of having electronic eye is followed the tracks of |
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| Publication number | Publication date |
|---|---|
| CN106926910A (en) | 2017-07-07 |
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