CN107814320B - Arch frame mounting trolley, telescopic arm and protection device thereof - Google Patents
Arch frame mounting trolley, telescopic arm and protection device thereof Download PDFInfo
- Publication number
- CN107814320B CN107814320B CN201711080733.0A CN201711080733A CN107814320B CN 107814320 B CN107814320 B CN 107814320B CN 201711080733 A CN201711080733 A CN 201711080733A CN 107814320 B CN107814320 B CN 107814320B
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- CN
- China
- Prior art keywords
- arm
- section
- telescopic
- sections
- oil scraping
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- 238000007790 scraping Methods 0.000 claims abstract description 38
- 239000010687 lubricating oil Substances 0.000 claims abstract description 12
- 239000003921 oil Substances 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 5
- 238000010276 construction Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001012 protector Effects 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
- B66C23/62—Constructional features or details
- B66C23/64—Jibs
- B66C23/70—Jibs constructed of sections adapted to be assembled to form jibs or various lengths
- B66C23/701—Jibs constructed of sections adapted to be assembled to form jibs or various lengths telescopic
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Lining And Supports For Tunnels (AREA)
Abstract
The present disclosure relates to a telescopic arm protection device, a telescopic arm and an arch frame mounting trolley, the telescopic arm includes a plurality of arm sections, a preceding one of the adjacent two arm sections is sleeved in a succeeding one of the arm sections, the preceding arm can be extended/retracted with respect to the succeeding one of the arm sections by driving of a driving device, wherein the telescopic arm protection device (2) is disposed between the adjacent two arm sections, the telescopic arm protection device (2) includes: a scraping element (21) for scraping the lubricating oil from the surface of the preceding arm section during the extension of the preceding arm section from the following arm section, and a connecting structure (22) for connecting the scraping element (21) to the following arm section. The telescopic boom protection device that this disclosure provided stretches can guarantee the nature of lubricating oil, avoids appearing telescopic boom flexible jamming trouble simultaneously.
Description
Technical Field
The disclosure relates to the field of engineering machinery, in particular to a telescopic boom protection device, a telescopic boom and an arch frame installation trolley.
Background
The telescopic arm has a larger bearing capacity when being extended in a small extent, and has a longer working distance and a higher working height under the allowed load condition. Based on this advantage, the telescopic boom structure is used in many engineering vehicles or other transportation means.
For example, in the course of tunnel excavation, the arch mounting trolley used uses telescopic arms to achieve construction at a high working height.
Typically, the telescopic arm has a plurality of arm segments, and the front arm segment is sleeved in the rear arm segment, and the front arm segment is extended forward or retracted backward from the rear arm segment under the drive of a driving device (such as a hydraulic cylinder). In order to reduce wear caused by telescoping between two arm segments and to improve telescoping smoothness, a layer of lubricating oil is typically applied to the outer surface of the preceding arm segment. However, when working under higher working height working conditions, the lubricating oil on the surface of the arm joint is exposed to the air due to the extension of the arm joint, so that the arm joint is not only easy to dry, but also easy to adhere dust and small stone particles, the property of the lubricating oil is affected, and even the telescopic clamping stagnation fault of the arm joint is caused.
Disclosure of Invention
The purpose of this disclosure is to provide a flexible arm protection device to guarantee the nature of lubricating oil, avoid appearing flexible clamping stagnation trouble of flexible arm simultaneously.
In order to achieve the above object, the present disclosure provides a telescopic arm protection apparatus, the telescopic arm including a plurality of arm sections, a front one of two adjacent arm sections being sleeved in a rear one of the arm sections, the front one of the arm sections being extendable/retractable with respect to the rear one of the arm sections by driving of a driving device, wherein the telescopic arm protection apparatus is provided between the two adjacent arm sections, the telescopic arm protection apparatus comprising: a scraping part for scraping lubricating oil on the surface of the previous arm section during the process that the previous arm section extends from the next arm section, and a connecting structure for connecting the scraping part to the next arm section.
Optionally, the oil scraping piece is in a ring shape and sleeved outside the previous arm section.
Optionally, the telescopic arm protection device comprises a plurality of oil scraping pieces, and each oil scraping piece is correspondingly connected with at least one connecting structure.
Optionally, the number of the oil scraping pieces is four, the four oil scraping pieces are sequentially connected end to form a quadrilateral structure, and the four oil scraping pieces encircle the periphery of the previous arm section.
Optionally, the connecting structure is configured as a hinge structure and comprises a first fan blade and a second fan blade hinged through a hinge shaft, wherein the first fan blade is used for being connected with the tail end of the subsequent arm section, and the second fan blade is used for being connected with the oil scraping piece.
Optionally, the connecting structure further includes an elastic member, one end of the elastic member biases the first leaf inwards, and the other end biases the second leaf inwards.
Optionally, the elastic element is a spring, and the spring is sleeved on the hinge shaft.
Optionally, the oil scraping piece has a V-shaped cross section, and includes a first edge and a second edge, and a connection part between the first edge and the second edge is formed as a vertex angle of the V-shaped cross section, the vertex angle faces and contacts with an outer surface of a previous arm section, and the second fan blade is connected with the first edge or the second edge in a coplanar manner.
On the basis of the technical scheme, the present disclosure further provides a telescopic arm, which comprises a plurality of arm sections, wherein a previous arm section of two adjacent arm sections is sleeved in a next arm section, and the previous arm section can extend/retract relative to the next arm section through the driving of the driving device, and the telescopic arm further comprises the telescopic arm protection device provided by the present disclosure.
In addition, the present disclosure also provides an arch mounting trolley, comprising a trolley unit and a working unit, the working unit comprising a working arm and a clamp for clamping an arch, the clamp being connected at a distal end of the working arm, a proximal end of the working arm being hinged to the trolley unit, wherein the arch mounting trolley comprises the telescopic arm described above, the telescopic arm serving as the working arm.
Through above-mentioned technical scheme, when the in-process that the arm festival stretches out, the lubricating oil of arm festival surface is blockked by the oil scraping piece, no longer adheres to on the relevant position of arm festival surface, consequently, on the one hand, can avoid the arm festival to stretch out under the condition that the long time stretches out the lubricating oil limit, and then influence lubricated effect, on the other hand, can also avoid when the tunnel construction, adhesion dust and drop the little stone grain on the arm festival, and then jamming arm festival thereby influences the normal flexible of flexible arm.
Additional features and advantages of the present disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings are included to provide a further understanding of the disclosure, and are incorporated in and constitute a part of this specification, illustrate the disclosure and together with the description serve to explain, but do not limit the disclosure. In the drawings:
FIG. 1 is a perspective view of a telescoping arm according to an embodiment of the present disclosure;
FIG. 2 is a perspective view of a telescoping arm protector according to an embodiment of the present disclosure, wherein the telescoping arm protector is attached to the end of the subsequent arm segment;
fig. 3 is another perspective view of a telescoping arm protection assembly according to an embodiment of the present disclosure.
Description of the reference numerals
11-first arm section, 111-start end, 112-end, 12-second arm section, 13-third arm section, 2-telescopic arm protection device, 21-oil scraping piece, 211-first edge, 212-second edge, 22-connection structure, 221-first fan blade, 222-second fan blade, 223-hinge shaft and 23-elastic piece.
Detailed Description
Specific embodiments of the present disclosure are described in detail below with reference to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating and illustrating the disclosure, are not intended to limit the disclosure.
In the present disclosure, unless otherwise indicated, terms of orientation such as "front and rear" are used to generally refer to the direction in which the arm segment extends in the telescoping direction of the telescoping arm as the front and the direction in which the arm segment retracts as the rear; "inner and outer" means inner and outer relative to the contour of each component itself. "far and near" means far and near with respect to the carriage unit.
According to a specific embodiment of the present disclosure, there is provided a telescopic arm protection apparatus 2, the telescopic arm including a plurality of arm sections, a front one of the two adjacent arm sections being sleeved in a rear one of the arm sections, the front one of the arm sections being extendable/retractable with respect to the rear one of the arm sections by driving of a driving apparatus, wherein the telescopic arm protection apparatus 2 is disposed between the two adjacent arm sections, the telescopic arm protection apparatus 2 comprising: a scraping member 21 for scraping the lubricating oil from the surface of the preceding arm section during the process of the preceding arm section being extended from the following arm section, and a connecting structure 22 for connecting the scraping member 21 to the following arm section.
Through above-mentioned technical scheme, when the in-process that the arm festival stretches out, the lubricating oil of arm festival surface is blockked by scraping oil 21 when scraping oil 21, no longer adheres to on the relevant position of arm festival surface, consequently, on the one hand, can avoid the arm festival to stretch out under the condition that the long time is dry, and then influence lubricated effect, on the other hand, can also avoid when the tunnel construction, adhesion dust and drop the little stone grain on the arm festival, and then jamming arm festival thereby influences the normal flexible of flexible arm.
The present disclosure will be described in detail below with reference to the specific embodiments shown in fig. 1 to 3.
Referring to fig. 1, the telescopic arm includes a first arm segment 11, a second arm segment 12, and a third arm segment 13, a start end 111 of the first arm segment 11 is for being hinged on a work vehicle such as an arch mounting cart, a start end of the second arm segment 12 is sleeved in an end 112 of the first arm segment 11, a start end of the third arm segment 13 is sleeved in an end of the second arm segment 12, and an end of the third arm segment 13 is for being connected with a work tool such as a jig. The telescopic arm protection 2 is connected to the end 112 of the first arm segment 11. A telescopic arm protection 2 is arranged between the first arm segment 11 and the second arm segment 12. In other embodiments provided by the present disclosure, the telescopic arm protection apparatus 2 provided by the present disclosure may be disposed between two adjacent arm segments in the telescopic arm.
In the embodiment provided in the present disclosure, the oil scraping member 21 may be configured in a ring shape to be sleeved on the outer side of the second arm section 12 so as to block the lubricant on the outer surface during the extension of the second arm section 12 from the first arm section.
In the specific embodiment provided in the present disclosure, the telescopic arm protection device 2 includes a plurality of oil scraping members 21, and for installation, at least one connection structure 22 is correspondingly connected to each oil scraping member 21.
For example, in the embodiment shown in fig. 1 to 3, the number of the oil scraping members 21 is four, and the four oil scraping members 21 are sequentially connected end to form a quadrilateral structure and encircle the periphery of the previous arm segment. It should be noted here that such a quadrangular structure corresponds to an arm segment having a quadrangular cross section, and if it is an arm segment having a circular cross section, the oil scraper 21 may be configured as a circular structure, i.e., the structure of the oil scraper 21 may be designed according to the applied arm segment.
In the specific embodiments provided in this disclosure, the connection structure may be configured in any suitable manner. Referring to the specific embodiment shown in fig. 3, the connection structure 22 is configured as a hinge structure, and includes a first leaf and a second leaf hinged by a hinge shaft 223, where the first leaf 221 is used for connecting with the end of the subsequent arm section, and the second leaf is used for connecting with the oil scraping member 21.
In order to reduce the impact force applied to the connecting structure 22 during the extension and retraction of the arm segment, the connecting structure 22 may further include an elastic member 23, where one end of the elastic member 23 biases the first leaf inwards, and the other end biases the second leaf inwards.
In the specific embodiment provided in the present disclosure, the elastic member 23 may be a spring, which is sleeved on the hinge shaft 223.
In the specific embodiments provided in the present disclosure, the wiper 21 may be configured in any suitable manner. Alternatively, referring to fig. 3, the oil scraping member 21 has a V-shaped cross section, and includes a first edge 211 and a second edge 212, where the connection between the first edge 211 and the second edge 212 is formed as a vertex angle of the V-shaped cross section, the vertex angle faces and contacts with the outer surface of the previous arm segment, and the second fan blade 222 is connected coplanar with the first edge 211 or the second edge 212.
On the basis of the technical scheme, the present disclosure further provides a telescopic arm, which comprises a plurality of arm sections, wherein a previous arm section of two adjacent arm sections is sleeved in a next arm section, and the previous arm section can extend/retract relative to the next arm section through the driving of the driving device, and the telescopic arm further comprises the telescopic arm protection device 2 provided by the present disclosure.
In addition, the present disclosure also provides an arch mounting trolley, comprising a trolley unit and a working unit, the working unit comprising a working arm and a clamp for clamping an arch, the clamp being connected at a distal end of the working arm, a proximal end of the working arm being hinged to the trolley unit, wherein the arch mounting trolley comprises the above-mentioned telescopic arm serving as the working arm.
The preferred embodiments of the present disclosure have been described in detail above with reference to the accompanying drawings, but the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solutions of the present disclosure within the scope of the technical concept of the present disclosure, and all the simple modifications belong to the protection scope of the present disclosure.
In addition, the specific features described in the above embodiments may be combined in any suitable manner without contradiction. The various possible combinations are not described further in this disclosure in order to avoid unnecessary repetition.
Moreover, any combination between the various embodiments of the present disclosure is possible as long as it does not depart from the spirit of the present disclosure, which should also be construed as the disclosure of the present disclosure.
Claims (5)
1. A telescopic arm protection device, said telescopic arm includes several arm sections, the front one of two adjacent arm sections is sleeved in the rear one, and the front one can be extended/retracted relative to the rear one by driving device, characterized by,
the telescopic arm protection device (2) is arranged between two adjacent arm sections, and the telescopic arm protection device (2) comprises: a plurality of oil scraping members (21) for scraping the lubricating oil from the surface of the previous arm section during the process of extending the previous arm section from the next arm section, and a connecting structure (22) for connecting each of the oil scraping members (21) to the next arm section,
the plurality of oil scraping pieces (21) are configured to correspond to the ring shape of the previous arm section and are sleeved outside the previous arm section,
each oil scraping piece (21) is correspondingly connected with at least one connecting structure (22), is connected in the subsequent arm section through the connecting structure (22),
the oil scraping piece (21) has a V-shaped cross section and comprises a first side part (211) and a second side part (212), the connection part of the first side part (211) and the second side part (212) is formed into the vertex angle of the V-shaped cross section, the vertex angle faces to and contacts with the outer surface of the previous arm section,
the connecting structure (22) is a hinge structure and comprises a first leaf (221) and a second leaf (222) which are hinged through a hinge shaft (223), the first leaf (221) is used for being connected with the tail end of the subsequent arm section, the second leaf (222) is used for being connected with the oil scraping piece (21), the second leaf (222) is connected with the first edge (211) in a coplanar manner,
the connecting structure (22) further comprises an elastic member (23), wherein one end of the elastic member (23) biases the first leaf (221) inwards, and the other end biases the second leaf (222) inwards.
2. A telescopic arm protection as claimed in claim 1, wherein,
the cross section corresponding to the previous arm section is provided with four oil scraping pieces (21), the four oil scraping pieces (21) are sequentially connected end to form a quadrilateral structure, and the four oil scraping pieces encircle the periphery of the previous arm section.
3. A telescopic arm protection as claimed in claim 1, wherein,
the elastic piece (23) is a spring, and the spring is sleeved on the hinge shaft (223).
4. A telescopic arm comprising a plurality of arm sections, wherein a front one of two adjacent arm sections is sleeved in a rear one of the arm sections, the front one of the arm sections can extend/retract relative to the rear one of the arm sections by driving of a driving device,
the telescopic boom further comprises a telescopic boom protection (2) according to any of claims 1-3.
5. An arch centering assembly trolley comprising a trolley unit and a working unit, the working unit comprising a working arm and a clamp for clamping an arch centering, the clamp being connected to a distal end of the working arm, a proximal end of the working arm being hinged to the trolley unit, characterized in that,
the arch mounting trolley comprises a telescopic arm according to claim 4, which telescopic arm serves as the working arm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080733.0A CN107814320B (en) | 2017-11-06 | 2017-11-06 | Arch frame mounting trolley, telescopic arm and protection device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711080733.0A CN107814320B (en) | 2017-11-06 | 2017-11-06 | Arch frame mounting trolley, telescopic arm and protection device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107814320A CN107814320A (en) | 2018-03-20 |
| CN107814320B true CN107814320B (en) | 2024-03-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201711080733.0A Active CN107814320B (en) | 2017-11-06 | 2017-11-06 | Arch frame mounting trolley, telescopic arm and protection device thereof |
Country Status (1)
| Country | Link |
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| CN (1) | CN107814320B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201874588U (en) * | 2010-11-19 | 2011-06-22 | 徐工集团工程机械股份有限公司建设机械分公司 | Cement spraying equipment and arm end device thereof |
| JP2013023859A (en) * | 2011-07-19 | 2013-02-04 | Kobelco Contstruction Machinery Ltd | Work machine |
| CN103866983A (en) * | 2014-03-27 | 2014-06-18 | 湖南五新重型装备有限公司 | Lengthened type concrete spraying vehicle manipulator |
| CN205558921U (en) * | 2016-04-18 | 2016-09-07 | 湖南五新隧道智能装备股份有限公司 | Telescopic boom and concrete spraying vehicle |
| CN207551779U (en) * | 2017-11-06 | 2018-06-29 | 北京新能正源环境科技有限公司 | Arch installation trolley, telescopic arm and its protective device |
-
2017
- 2017-11-06 CN CN201711080733.0A patent/CN107814320B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201874588U (en) * | 2010-11-19 | 2011-06-22 | 徐工集团工程机械股份有限公司建设机械分公司 | Cement spraying equipment and arm end device thereof |
| JP2013023859A (en) * | 2011-07-19 | 2013-02-04 | Kobelco Contstruction Machinery Ltd | Work machine |
| CN103866983A (en) * | 2014-03-27 | 2014-06-18 | 湖南五新重型装备有限公司 | Lengthened type concrete spraying vehicle manipulator |
| CN205558921U (en) * | 2016-04-18 | 2016-09-07 | 湖南五新隧道智能装备股份有限公司 | Telescopic boom and concrete spraying vehicle |
| CN207551779U (en) * | 2017-11-06 | 2018-06-29 | 北京新能正源环境科技有限公司 | Arch installation trolley, telescopic arm and its protective device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107814320A (en) | 2018-03-20 |
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Address after: No. 10, color Xiang Dong Road, South color Town, Beijing, Shunyi District, Beijing Applicant after: BEIJING XINNENG ZHENGYUAN INTELLIGENT EQUIPMENT Co.,Ltd. Address before: 101300 No. 8 Choi Yuan Industrial Park, 10 Choi Cheung Road, Shunyi District, Beijing. Applicant before: BEIJING XIN NENG ZHENG YUAN ENVIRONMENT TECHNOLOGY Co.,Ltd. |
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