CN106364267B - Rigid drawbar with automatic latch - Google Patents
Rigid drawbar with automatic latch Download PDFInfo
- Publication number
- CN106364267B CN106364267B CN201610868817.XA CN201610868817A CN106364267B CN 106364267 B CN106364267 B CN 106364267B CN 201610868817 A CN201610868817 A CN 201610868817A CN 106364267 B CN106364267 B CN 106364267B
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- China
- Prior art keywords
- automatic latch
- connecting rod
- mobile jib
- secondary bar
- rigid
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- 230000003139 buffering effect Effects 0.000 claims abstract description 4
- 230000007246 mechanism Effects 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- 238000003780 insertion Methods 0.000 claims description 3
- 230000037431 insertion Effects 0.000 claims description 3
- 102000004315 Forkhead Transcription Factors Human genes 0.000 claims 1
- 108090000852 Forkhead Transcription Factors Proteins 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 2
- 230000001603 reducing effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000012447 hatching Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60D—VEHICLE CONNECTIONS
- B60D1/00—Traction couplings; Hitches; Draw-gear; Towing devices
- B60D1/14—Draw-gear or towing devices characterised by their type
- B60D1/167—Draw-gear or towing devices characterised by their type consisting of articulated or rigidly assembled bars or tubes forming a V-, Y-, or U-shaped draw gear
- B60D1/1675—Draw-gear or towing devices characterised by their type consisting of articulated or rigidly assembled bars or tubes forming a V-, Y-, or U-shaped draw gear comprising extendable, retractable or foldable members
Landscapes
- Engineering & Computer Science (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Forklifts And Lifting Vehicles (AREA)
Abstract
The present invention relates to a kind of rigid drawbars with automatic latch, including mobile jib, secondary bar and two link blocks, described two link blocks pass through respectively on the support that fixed pin is hinged in rear car, one end of mobile jib and secondary bar is hinged by connecting pin and mounts with the center draw hook with buffering on front truck, it is hinged with link block that mobile jib and the other end of secondary bar pass through connecting pin respectively, form multistage hinged " triangle " rigid support form, automatic latch is equipped on mobile jib and secondary bar, and mobile jib and secondary bar are two-segment type foldable structure, it is hinged by automatic latch and realize semi-rigid and rigid state be quickly converted, improve the flexibility and adaptability of connection and disassembly, the expansion of reducing property traction device, the operation difficulties such as installation and disassembly, improve service efficiency, improve operator and equipment safety Property.
Description
Technical field
The invention belongs to a kind of traction devices, and in particular to it is a kind of on heavy vehicle with automatic latch
Rigid drawbar.
Background technique
Existing all kinds of heavy wreckers are each equipped with rigid drawbar, applied to sending after fault car traction, there is work
There are many shortcomings in use in the features such as industry load is big, stress is complicated:
1) rigid drawbar being mounted and being dismantled all by being accomplished manually, and large labor intensity, operation time is long.
2) when carrying out rigid drawbar connection operation, to rescue carrigae and by the relative position (spacing and right of tractor
Moderate) height is required, and need to carry out reversing operation during the connection process, personnel and equipment are easy to produce damage, and it is hidden to there is safety
Suffer from, and joint efficiency is low, holding time is long, needs personnel more.
3) it when carrying out rigid drawbar disassembly operation, in any case since tractive force cannot discharge, can make
It is extremely difficult at dismantling.
Summary of the invention
The technical problem to be solved by the present invention is to overcome above-mentioned deficiency, provide it is a kind of it is safe and reliable, efficiently with from
The rigid drawbar of dynamic bolt mechanism, under the premise of not influencing hauling ability, effectively reduce rigid drawbar expansion,
The difficulty of installation and disassembly, improves service efficiency, improves operator and device security.
Technical solution of the present invention: a kind of rigid drawbar with automatic latch, including mobile jib, secondary bar and two
A link block, described two link blocks pass through respectively on the support that fixed pin is hinged in rear car, and one end of mobile jib and secondary bar is logical
It crosses connecting pin hingedly and is mounted with the center draw hook with buffering on front truck, the other end of mobile jib and secondary bar passes through connection respectively
It sells hinged with link block, forms multistage hinged " triangle " rigid support form；
The mobile jib includes connection ring, first connecting rod, automatic latch, the second connecting rod and the first plug, connection
Ring is connect with first connecting rod, and the other end of first connecting rod is connect with automatic latch, the other end of automatic latch
It is connect with the second connecting rod, the other end of the second connecting rod is connect with the first plug；
The secondary bar includes the second plug, third connecting rod, automatic latch, the 4th connecting rod and third plug, the
Two plugs are connect with third connecting rod, and the other end of third connecting rod is connect with automatic latch, automatic latch it is another
One end is connect with the 4th connecting rod, and the other end of the 4th connecting rod is connect with third plug；
Mobile jib is identical with the automatic latch structure in secondary bar；The automatic latch includes connector, fork-join head, limit
Position block, guide seat, the connector and fork-join head are hinged by connecting bolt, and a limited block is equipped on connector, passes through limit
Block limits hunting range at 85 °~180 °, and hinge joint deviates 5~8 millimeters of center line of mobile jib or secondary bar, and the guide seat is logical
It crosses screw to be mounted on fork-join head, the resilient pin machine formed in guide seat equipped with screw rod, spring, bolt, guide plate and nut
Structure, resilient pin mechanism go to upper and lower symmetrical arrangement, and one end of the screw rod is connected with bolt, and screw rod is oriented to by guide plate
In the hole for making bolt insertion connector, spring is arranged on screw rod, the other end end of screw rod is equipped with nut.
Further, the junction of connection ring, first connecting rod and automatic latch and the first plug, the second connection
Bar is all made of welding manner with automatic latch junction and connects.
Further, mobile jib and secondary bar are two-segment type foldable structure, hinged by automatic latch and realize semi-rigid
Property and rigid state are quickly converted.
Further, the second plug, the junction of third connecting rod and automatic latch and third plug, the 4th connect
Extension bar is connected with the mode that the junction of automatic latch is all made of welding.
Further, the connection ring is forged using high strength alloy steel, is determined and is connected according to the angle between mobile jib and secondary bar
Connect ring structure size and stress point.
Compared with the prior art, the invention has the following beneficial effects: 1, mobile jib of the invention and secondary bar are two-segment type folding
Stack structure, it is hinged by automatic latch and realize it is semi-rigid and rigid state be quickly converted, improve connection and disassembly
Flexibility and adaptability, reduce using operation difficulty.2, the center draw hook of tractor tail portion is to positive tolerance
Within the scope of 700mm × 500mm, the connection operation of draw bar can be carried out, and no longer need to move vehicle before completing connection, improved
Service efficiency and safety.3, it is quick, convenient to connect, and after actual measurement, operation number 2 people can traction device in 1 minute
Connection and expansion, after completing connection, vehicle advances, and mobile jib and secondary bar can automatically form rigidity under automatic latch effect
Bar when freeing, frees tension side automatic latch, makes mobile jib and secondary bar at semi-rigid state, discharges the power that draw bar is born,
Disassembly can be easily accomplished.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention；
Fig. 2 is the structural schematic diagram of mobile jib in the present invention
The structural schematic diagram of secondary bar in Fig. 3 present invention；
Fig. 4 is the structural schematic diagram of automatic latch in the present invention；
Fig. 5 is cross-sectional view of the Fig. 4 along A-A hatching；
Fig. 6 is that automatic latch frees state diagram in the present invention；
Fig. 7 is that procedure chart is unfolded in automatic latch in the present invention；
Fig. 8 is automatic latch lockup state in the present invention
In figure: 1- mobile jib, 2- secondary bar, 3- connecting pin, 4- link block, 5- fixed pin, 6- connection ring, 7- first connecting rod,
8- automatic latch, the second connecting rod of 9-, the first plug of 10-, the second plug of 11-, 12- third connecting rod, the connection of 13- the 4th
Bar, 14- third plug, 22- connector, 23- fork-join head, 24- connecting bolt, 25- limited block, 26- guide seat, 27- screw rod, 28-
Spring, 29- guide plate, 30 bolts, 31 nuts, 32 screws.
Specific embodiment
In order to make those skilled in the art more fully understand the objectives, technical solutions, and advantages of the present invention, below with reference to saying
The present invention will be described in further detail for bright book attached drawing.It should be appreciated that specific embodiment described herein is only used to solve
The present invention is released, is not intended to limit the present invention.
A kind of rigid drawbar with automatic latch, as shown in FIG. 1 to FIG. 8, including mobile jib 1, secondary bar 2 and two
A link block 4, described two link blocks 4 are hinged on the support in rear car by fixed pin 5 respectively, and the one of mobile jib 1 and secondary bar 2
End is hinged by connecting pin 3 and mounts with the center draw hook with buffering on front truck, the other end difference of mobile jib 1 and secondary bar 2
It is hinged by connecting pin 3 and link block 4, form multistage hinged " triangle " rigid support form.The mobile jib 1 includes connection
Ring 6, first connecting rod 7, automatic latch 8, the second connecting rod 9 and the first plug 10, connection ring 6 and first connecting rod 7 connect
It connects, the other end of first connecting rod 7 is connect with automatic latch 8, the other end of automatic latch 8 and the second connecting rod 9
Connection, the other end of the second connecting rod 9 are connect with the first plug 10.The connection ring 6 is forged using high strength alloy steel, according to
Angle between mobile jib 1 and secondary bar 2 determines connection ring structure size and stress point.It connection ring 6, first connecting rod 7 and automatic inserts
The junction of pin mechanism 8 and the junction of the first plug 10, the second connecting rod 9 and automatic latch 8 are all made of welding side
Formula connection, as shown in Figure 2.The secondary bar 2 includes the second plug 11, third connecting rod 12, the connection of automatic latch the 8, the 4th
Bar 13 and third plug 14, the second plug 11 are connect with third connecting rod 12, the other end and automatic pinning of third connecting rod 12
Mechanism 8 connects, and the other end of automatic latch 8 is connect with the 4th connecting rod 13, the other end and third of the 4th connecting rod 13
Plug 14 connects.Second plug 11, the junction of third connecting rod 12 and automatic latch 8 and third plug the 14, the 4th
Connecting rod 13 is connected with the mode that the junction of automatic latch 8 is all made of welding, as shown in Figure 3.
Mobile jib 1 is identical with 8 structure of automatic latch in secondary bar 2.As shown in Figure 4, Figure 5, the automatic latch 8
Including connector 22, fork-join head 23, limited block 25, guide seat 26, the connector 22 and fork-join head 23 are hinged by connecting bolt 24,
It is equipped with a limited block 25 on connector 22, hunting range is limited at 85 °~180 ° by limited block 25, hinge joint deviates master
Bar 1 or 5~8 millimeters of the center line of secondary bar 2, the guide seat 26 is mounted on fork-join head 23 by screw 32, in guide seat 26
Equipped with the resilient pin mechanism that screw rod 27, spring 28, bolt 30, guide plate 29 and nut 31 are formed, resilient pin mechanism presents,
Lower symmetrical arrangement, one end of the screw rod 27 are connected with bolt 30, and screw rod 27 connects bolt insertion by the guiding of guide plate 29
In first 22 hole, spring 28 is arranged on screw rod 27, the end of the other end of screw rod 27 is equipped with nut 31.
When mobile jib 1 or secondary bar 2 are rocked to linear state by folded state, upper and lower bolt 30 under the action of the spring 28,
It is automatically inserted into the hole of connector 22, is together formed mobile jib 1 and secondary bar 2 with connecting bolt 24 and be rigidly connected；When freeing, spiral shell is turned
Bar 27 drives bolt 30 to move up or down, and so that bolt 30 is extracted the hole of connector 22, makes mobile jib 1 or secondary bar 2 at semi-rigid shape
Operation is freed in formula, completion.As can be seen from figures 6 to 8.
The mobile jib 1 and secondary bar 2 of rigid drawbar are two-segment type foldable structure, hinged and real by automatic latch
It is now semi-rigid and rigid state to be quickly converted, the flexibility and adaptability of connection and disassembly are improved, is reduced using operation
Difficulty.In use, being 700mm × 500mm, Ji Kejin when the center draw hook of tractor tail portion is in positive tolerance range
The connection operation of row draw bar, and move vehicle is no longer needed to before completing connection, improve service efficiency and safety.The company of completion
After connecing, vehicle advances, and mobile jib 1 and secondary bar 2 can automatically form rigid rod under the effect of automatic latch 8.When freeing, free by
Side automatic latch 8 is drawn, makes mobile jib 1 and secondary bar 2 at semi-rigid state, discharges the power that draw bar is born, can be easily accomplished
Disassembly.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (5)
1. having the rigid drawbar of automatic latch, it is characterised in that: including mobile jib, secondary bar and two link blocks, institute
It states two link blocks to pass through respectively on the support that fixed pin is hinged in rear car, one end of mobile jib and secondary bar is hinged by connecting pin
And mounted with the center draw hook with buffering on front truck, the other end of mobile jib and secondary bar passes through connecting pin respectively and link block is cut with scissors
It connects, forms multistage hinged " triangle " rigid support form；
The mobile jib includes connection ring, first connecting rod, automatic latch, the second connecting rod and the first plug, connection ring with
First connecting rod connection, the other end of first connecting rod connect with automatic latch, the other end of automatic latch and the
The connection of two connecting rods, the other end of the second connecting rod are connect with the first plug；
The secondary bar includes the second plug, third connecting rod, automatic latch, the 4th connecting rod and third plug, the second fork
Head is connect with third connecting rod, and the other end of third connecting rod is connect with automatic latch, the other end of automatic latch
It is connect with the 4th connecting rod, the other end of the 4th connecting rod is connect with third plug；
Mobile jib is identical with the automatic latch structure in secondary bar；The automatic latch includes connector, fork-join head, limit
Block, guide seat, the connector and fork-join head are hinged by connecting bolt, and a limited block is equipped on connector, passes through limited block
Hunting range is limited at 85 °~180 °, hinge joint deviates 5~8 millimeters of center line of mobile jib or secondary bar, and the guide seat passes through
Screw is mounted on fork-join head, the resilient pin mechanism formed in guide seat equipped with screw rod, spring, bolt, guide plate and nut,
Resilient pin mechanism goes to upper and lower symmetrical arrangement, and one end of the screw rod is connected with bolt, and screw rod makes to insert by guide plate guiding
In the hole of pin insertion connector, spring is arranged on screw rod, the other end end of screw rod is equipped with nut.
2. the rigid drawbar according to claim 1 with automatic latch, it is characterised in that: connection ring,
One connecting rod and the junction and the first plug of automatic latch, the second connecting rod and automatic latch junction are adopted
It is connected with welding manner.
3. the rigid drawbar according to claim 1 with automatic latch, it is characterised in that: mobile jib and secondary bar
It is two-segment type foldable structure, it is hinged by automatic latch and realize semi-rigid and rigid state be quickly converted.
4. the rigid drawbar according to claim 1 with automatic latch, it is characterised in that: the second plug,
The junction of the junction and third plug, the 4th connecting rod and automatic latch of third connecting rod and automatic latch
The mode for being all made of welding connects.
5. the rigid drawbar according to any one of claims 1 to 4 with automatic latch, it is characterised in that:
The connection ring using high strength alloy steel forge, according to the angle between mobile jib and secondary bar determine connection ring structure size and by
Force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610868817.XA CN106364267B (en) | 2016-09-30 | 2016-09-30 | Rigid drawbar with automatic latch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610868817.XA CN106364267B (en) | 2016-09-30 | 2016-09-30 | Rigid drawbar with automatic latch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106364267A CN106364267A (en) | 2017-02-01 |
| CN106364267B true CN106364267B (en) | 2019-03-15 |
Family
ID=57897635
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610868817.XA Active CN106364267B (en) | 2016-09-30 | 2016-09-30 | Rigid drawbar with automatic latch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106364267B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112976968A (en) * | 2019-12-18 | 2021-06-18 | 山河智能装备股份有限公司 | Telescopic rod type rigid traction device |
| CN114670935B (en) * | 2022-04-14 | 2024-03-12 | 中国煤炭科工集团太原研究院有限公司 | Support carrier that can disassemble fast |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3512773A1 (en) * | 1985-04-10 | 1986-10-23 | Dr.Ing.H.C. F. Porsche Ag, 7000 Stuttgart | Towing-away device |
| US5071153A (en) * | 1989-10-30 | 1991-12-10 | Duncan Lee H | Vehicle tow bar |
| US5516140A (en) * | 1995-04-07 | 1996-05-14 | Hinte Products, Inc. | Tow bar assembly |
| US7988179B1 (en) * | 2009-04-15 | 2011-08-02 | Automatic Equipment Manufacturing Company | Tow bar having orthogonally-articulated towed-vehicle connectors |
| US9592711B2 (en) * | 2011-03-31 | 2017-03-14 | Defense Products and Services Holding Company | Towing assembly with pivot joints |
| CN204432273U (en) * | 2015-01-28 | 2015-07-01 | 中国人民解放军装甲兵工程学院 | Heavy Vehicle Rigid Towing Devices |
| CN206155053U (en) * | 2016-09-30 | 2017-05-10 | 中信机电制造公司科研设计院 | Rigid traction device with automatic bolt mechanism |
-
2016
- 2016-09-30 CN CN201610868817.XA patent/CN106364267B/en active Active
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| Publication number | Publication date |
|---|---|
| CN106364267A (en) | 2017-02-01 |
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Effective date of registration: 20190619 Address after: 043601 Muri Village, Jiangxian Development Zone, Yuncheng City, Shanxi Province Patentee after: State-owned Hongshan Machinery Factory Address before: 043000 No. 32 Shifu Road, Houma City, Linfen City, Shanxi Province Patentee before: Research Design Institute of CITIC Machinery Manufacturing Inc. |