CN110917544A - Boom structure and operation equipment - Google Patents
Boom structure and operation equipment Download PDFInfo
- Publication number
- CN110917544A CN110917544A CN201911219512.6A CN201911219512A CN110917544A CN 110917544 A CN110917544 A CN 110917544A CN 201911219512 A CN201911219512 A CN 201911219512A CN 110917544 A CN110917544 A CN 110917544A
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- horizontal
- section
- arm
- vertical
- boom structure
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- 238000010276 construction Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C31/00—Delivery of fire-extinguishing material
- A62C31/28—Accessories for delivery devices, e.g. supports
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- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Jib Cranes (AREA)
Abstract
The invention relates to the field of engineering machinery and discloses a boom structure and operation equipment. The arm support structure comprises a main arm, an auxiliary arm, a main arm conveying pipe arranged on the main arm and an auxiliary arm conveying pipe arranged on the auxiliary arm, wherein the main arm comprises a vertical section extending along the vertical direction, the main arm conveying pipe comprises a vertical pipe section corresponding to the vertical section, the auxiliary arm comprises a horizontal section extending along the horizontal direction, the auxiliary arm conveying pipe comprises a horizontal pipe section corresponding to the horizontal section, the auxiliary arm is connected to the vertical section through the horizontal section and can rotate around the vertical section in the axial direction, one end of the horizontal pipe section is connected to one end of the vertical pipe section through a rotating elbow, the arm support structure further comprises a rigid connecting piece, and the rotating elbow is connected to the auxiliary arm through the rigid connecting piece to rotate along with the auxiliary arm. The arm support structure can effectively improve the followability of the rotary elbow, thereby avoiding the problems of abrasion, clamping stagnation, leakage and the like of the rotary elbow due to uneven stress, and further avoiding the breakage and leakage of the hose.
Description
Technical Field
The invention relates to the field of engineering machinery, in particular to a boom structure and operation equipment comprising the boom structure.
Background
At present, the operation equipment with the arm support structure is more and more widely applied to engineering operation, such as a concrete pump truck, a fire engine and the like, and brings great convenience to operation or construction. The boom structure typically comprises a boom and a conveying pipe mounted on the boom, the boom structure being adapted to convey material (e.g. water in case of fire fighting), and in operation the outlet of the conveying pipe being arranged at a predetermined position, and material being able to enter from the inlet of the conveying pipe and be conveyed via the conveying pipe to the predetermined position.
However, in order to improve the compactness of the device structure in accordance with the demand for miniaturization of the device, many devices provide an arm support including a main arm and an auxiliary arm rotatably coupled to the main arm, and couple a delivery pipe mounted on the auxiliary arm to the delivery pipe on the main arm by fitting a hose through a swivel elbow to accommodate the rotation of the auxiliary arm. However, in the above arrangement, when the auxiliary arm rotates, the rotation power of the rotation elbow is completely provided by the hose, which not only easily causes the breakage and leakage of the hose in the use process, but also causes the problems of wear, clamping stagnation, leakage and the like due to the fact that the rotation elbow cannot follow up well and is stressed unevenly.
Disclosure of Invention
The invention aims to provide a boom structure and operation equipment comprising the boom structure, so as to solve the problems.
In order to achieve the above object, an aspect of the present invention provides a boom structure including a main arm, an auxiliary arm, a main arm delivery pipe mounted on the main arm, and an auxiliary arm delivery pipe mounted on the auxiliary arm, the main arm comprises a vertical section extending in a vertical direction, the main arm conveying pipe comprises a vertical pipe section corresponding to the vertical section, the auxiliary arm comprises a horizontal section extending along the horizontal direction, the auxiliary arm conveying pipe comprises a horizontal pipe section corresponding to the horizontal section, the auxiliary arm is connected to the vertical section through the horizontal section and can rotate around the axial direction of the vertical section, one end of the horizontal pipe section is connected with one end of the vertical pipe section through a rotary elbow, the arm support structure also comprises a rigid connecting piece, the swivel elbow is connected to the secondary arm by the rigid connection for rotation therewith.
Optionally, one end of the rigid connector is connected to the swivel elbow and the other end of the rigid connector is connected to the horizontal segment.
Optionally, one end of the rigid connector is fixedly connected to the rotary elbow at a position close to the vertical pipe section, and the other end of the rigid connector is movably connected to the horizontal section so as to be movable in a horizontal direction relative to the horizontal section.
Optionally, the rigid connector is a bent rod.
Optionally, the rigid connection member includes a first horizontal portion, a second horizontal portion, and an inclined portion connected between the first horizontal portion and the second horizontal portion, one end of the first horizontal portion, which is far away from the inclined portion, is fixedly connected to the swivel elbow, one end of the second horizontal portion, which is far away from the inclined portion, is provided with a horizontally extending strip-shaped hole, the horizontal segment is provided with a connection pin for the strip-shaped hole to be sleeved in, and the diameter of the connection pin is smaller than the length of the strip-shaped hole.
Optionally, the rigid connection member includes a yoke portion having a root connected to an end of the first horizontal portion distal from the inclined portion, a U-shaped yoke portion of the yoke portion being coaxially secured around the swivel elbow.
Optionally, the root of the fork portion is connected to the first horizontal portion by a bolt, and the U-shaped fork portion of the fork portion is welded to the swivel elbow.
Optionally, the horizontal pipe section is connected with the rotary elbow through a hose, and the length of the hose is greater than the connection distance between the horizontal pipe section and the rotary elbow.
The invention further provides operating equipment which comprises the arm support structure.
Optionally, the work equipment is a fire engine.
According to the arm support structure, the rotating elbow is rigidly connected to the auxiliary arm through the rigid connecting piece, when the auxiliary arm rotates, the rotating power of the rotating elbow is provided by the rigid connecting piece, the follow-up property of the rotating elbow can be effectively improved, the problems of abrasion, clamping stagnation, leakage and the like of the rotating elbow due to uneven stress are avoided, and in addition, the breakage and leakage of a hose can be avoided.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic view of an embodiment of a boom structure according to the present invention;
fig. 2 is a fragmentary top view of fig. 1.
Description of the reference numerals
10-vertical section, 11-horizontal section, 12-connecting pin, 20-vertical section, 21-horizontal section, 22-rotary elbow, 23-hose, 30-rigid connecting piece, 31-first horizontal section, 32-inclined section, 33-second horizontal section, 34-strip-shaped hole, 35-shifting fork section and 36-bolt.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
In the present invention, the use of directional terms such as "upper, lower, horizontal, vertical" generally refers to the orientation as illustrated in the drawings, unless otherwise specified.
The invention provides an arm support structure, which comprises a main arm, an auxiliary arm, a main arm conveying pipe arranged on the main arm and an auxiliary arm conveying pipe arranged on the auxiliary arm, the main arm comprises a vertical section 10 extending in a vertical direction, the main arm conveying pipe comprises a vertical pipe section 20 corresponding to the vertical section 10, the sub-arm comprises a horizontal section 11 extending in a horizontal direction, the sub-arm conveying pipe comprises a horizontal pipe section 21 corresponding to the horizontal section 11, the sub-arm is connected to the vertical section 10 through the horizontal section 11 and can rotate around the axial direction of the vertical section 10, one end of the horizontal pipe section 21 is connected to one end of the vertical pipe section 20 by a swivel elbow 22, the boom structure further comprises a rigid connection 30, the swivel elbow 22 being connected to the secondary arm by the rigid connection 30 to swivel with the secondary arm.
According to the arm support structure, the rotating elbow 22 is rigidly connected to the auxiliary arm through the rigid connecting piece 30, when the auxiliary arm rotates, the rotating power of the rotating elbow 22 is provided by the rigid connecting piece 30, the follow-up property of the rotating elbow 22 can be effectively improved, the problems of abrasion, clamping stagnation, leakage and the like of the rotating elbow 22 due to uneven stress are avoided, and in addition, the breakage and leakage of a hose can be avoided.
It should be noted that the present invention is mainly based on the improvement of the structure of the connecting portion of the main arm and the sub-arm, and therefore, the structure of the main arm and the sub-arm will not be described in detail, and certainly, the structural form of the main arm and the sub-arm will not be limited, as long as the main arm includes a vertical section for connecting with the sub-arm, and the sub-arm includes a horizontal section for connecting with the main arm. Furthermore, the references to horizontal and vertical are also for ease of understanding with reference to the orientation shown in the drawings and do not represent the orientation of the boom structure in actual use.
It will be further appreciated that the swivel elbow 22 described above is able to swivel relative to the upright tube section 20, so that the swivel elbow 22 follows as the secondary arm swivels.
Fig. 1 is a schematic view showing an embodiment of the boom structure, in which only the structure of the connection portion of the main arm and the sub arm is shown. As shown in fig. 1, one end of the horizontal section 11 of the sub-boom is connected to the upper end of the vertical section 10 of the main boom, one end of the horizontal pipe section 21 of the sub-boom conveying pipe is connected to the upper end of the vertical pipe section 20 of the main boom conveying pipe through the rotating elbow 22, and the horizontal pipe section 21, the rotating elbow 22 are communicated with the vertical pipe section 20.
In the present invention, the rigid connection member 30 may have any suitable structure as long as the rigid connection between the swivel elbow 22 and the auxiliary arm can be realized. Wherein, one end of the rigid connecting piece 30 is connected to the rotating elbow 22, and the other end of the rigid connecting piece 30 is preferably connected to the horizontal section 11 of the auxiliary arm, so that the moment for driving the rotating elbow 22 can be shortened, the follow-up property of the rotating elbow 22 can be improved, and the structure of the rigid connecting piece 30 can be simplified.
Further, in order to improve the force uniformity of the swivel elbow 22, one end of the rigid connector 30 is fixedly connected to the swivel elbow 22 at a position close to the vertical pipe section 20 (i.e. the lower end of the swivel elbow 22 in fig. 1). In addition, in order to adapt to the position requirements of different rotation angles of the auxiliary arm, the other end of the rigid connecting piece 30 is movably connected to the horizontal section 11 to be capable of moving in the horizontal direction relative to the horizontal section 11, so that the rigid connecting piece 30 can realize self-adaptive adjustment.
According to one embodiment of the invention, the rigid connection 30 is a bent rod. Specifically, for example, as shown in fig. 1, the rigid connecting member 30 may include a first horizontal portion 31, a second horizontal portion 33, and an inclined portion 32 connected between the first horizontal portion 31 and the second horizontal portion 33, one end of the first horizontal portion 31, which is far away from the inclined portion 32, is fixedly connected to the swivel elbow 22, one end of the second horizontal portion 33, which is far away from the inclined portion 32, is provided with a horizontally extending strip-shaped hole 34, the horizontal section 11 is provided with a connecting pin 12 for the strip-shaped hole 34 to be sleeved in, and a diameter of the connecting pin 12 is smaller than a length of the strip-shaped hole 34, as shown in fig. 2 (it is to be noted that, in fig. 2, the boom structure of fig. 1 is simplified, mainly to show a relationship between the connecting pin 12 and the strip-shaped hole 34). During the rotation of the secondary arm, on the one hand, the connecting pin 12 can drive the rigid connecting piece 30 to rotate, and further drive the rotary elbow 22 to rotate; on the other hand, the connecting pin 12 is movable relative to the rigid connecting piece 30 along the strip-shaped hole 34, that is, the connecting pin 12 and the inclined part 32 can be adjusted in pitch according to the rotation angle of the auxiliary arm, so as to adapt to the position requirements of different rotation angles of the auxiliary arm.
In order to further improve the force uniformity of the swivel elbow 22, the rigid connection member 30 may further include a fork portion 35, a root portion of the fork portion 35 is connected to an end of the first horizontal portion 31 far from the inclined portion 32, and a U-shaped fork portion of the fork portion 35 is coaxially forked around the swivel elbow 22. Specifically, as shown in fig. 1, the U-shaped fork of the shift fork 35 is disposed at the lower end of the rotary elbow 22, the U-shaped fork is coaxial with the lower end of the rotary elbow 22, the inner circumferential surface of the U-shaped fork is attached to the outer circumferential surface of the lower end of the rotary elbow 22, and the U-shaped fork may be fixedly connected to the rotary elbow 22 by bolts, or may be welded or riveted to the rotary elbow 22.
As shown in fig. 1 and 2, the base of the yoke 35 may be connected to the first horizontal portion 31 by a bolt 36. Of course, the yoke portion 35 may be formed integrally with the first horizontal portion 31, the inclined portion 32, and the second horizontal portion 33 to form the rigid connection member 30.
In the present invention, the horizontal pipe section 21 and the rotary elbow 22 can be connected by a hose 23, and the length of the hose 23 is greater than the connection distance between the horizontal pipe section 21 and the rotary elbow 22. Since the main arm conveying pipe and the auxiliary arm conveying pipe are both hard pipes in a normal condition, the auxiliary arm conveying pipe can adapt to the length change of the auxiliary arm during rotation by arranging the hose 23. In addition, since the rotational power of the swivel elbow 22 is provided by the rigid connection 30 during the rotation of the secondary arm, damage to the hose 23 during rotation can be reduced.
The invention further provides operating equipment which comprises the arm support structure.
Wherein the work equipment may be a fire engine.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. Boom structure, characterized in that the boom structure comprises a main arm, an auxiliary arm, a main arm delivery pipe mounted on the main arm and an auxiliary arm delivery pipe mounted on the auxiliary arm, the main arm comprises a vertical section (10) extending in a vertical direction, the main arm delivery pipe comprises a vertical pipe section (20) corresponding to the vertical section (10), the auxiliary arm comprises a horizontal section (11) extending in a horizontal direction, the auxiliary arm delivery pipe comprises a horizontal pipe section (21) corresponding to the horizontal section (11), the auxiliary arm is connected to the vertical section (10) through the horizontal section (11) and can rotate around the axial direction of the vertical section (10), one end of the horizontal pipe section (21) is connected to one end of the vertical pipe section (20) through a swivel elbow (22), the boom structure further comprises a rigid connector (30), the swivel elbow (22) is connected to the secondary arm by the rigid connection (30) to swivel with the secondary arm.
2. Boom structure according to claim 1, characterized in that one end of the rigid connection (30) is connected to the swivel elbow (22) and the other end of the rigid connection (30) is connected to the horizontal section (11).
3. Boom structure according to claim 2, characterized in that one end of the rigid connector (30) is fixedly connected to the swivel elbow (22) at a position close to the vertical pipe section (20), and the other end of the rigid connector (30) is movably connected to the horizontal section (11) to be movable in a horizontal direction in relation to the horizontal section (11).
4. Boom structure according to claim 3, characterized in that the rigid connection (30) is a bent rod.
5. The boom structure according to claim 4, characterized in that the rigid connecting member (30) comprises a first horizontal part (31), a second horizontal part (33) and an inclined part (32) connected between the first horizontal part (31) and the second horizontal part (33), one end of the first horizontal part (31) far away from the inclined part (32) is fixedly connected to the swivel elbow (22), one end of the second horizontal part (33) far away from the inclined part (32) is provided with a horizontally extending strip-shaped hole (34), the horizontal section (11) is provided with a connecting pin (12) for the strip-shaped hole (34) to be sleeved in, and the diameter of the connecting pin (12) is smaller than the length of the strip-shaped hole (34).
6. Boom structure according to claim 5, characterized in that the rigid connection (30) comprises a fork part (35), the root of the fork part (35) being connected to the end of the first horizontal part (31) remote from the inclined part (32), the U-shaped fork part of the fork part (35) being forked coaxially around the swivel elbow (22).
7. Boom structure according to claim 6, characterized in that the root of the yoke part (35) is connected with the first horizontal part (31) by means of a bolt (36), the U-shaped fork part of the yoke part (35) being welded to the swivel elbow (22).
8. Boom structure according to any of claims 1-7, characterized in that the horizontal pipe section (21) is connected to the swivel elbow (22) by means of a hose (23), the length of the hose (23) being larger than the connection distance between the horizontal pipe section (21) and the swivel elbow (22).
9. A working device, characterized in that the working device comprises a boom construction according to any of claims 1-8.
10. The work device of claim 9, wherein the work device is a fire engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219512.6A CN110917544B (en) | 2019-12-03 | 2019-12-03 | Arm support structure and operation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911219512.6A CN110917544B (en) | 2019-12-03 | 2019-12-03 | Arm support structure and operation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN110917544A true CN110917544A (en) | 2020-03-27 |
| CN110917544B CN110917544B (en) | 2024-05-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911219512.6A Active CN110917544B (en) | 2019-12-03 | 2019-12-03 | Arm support structure and operation equipment |
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| CN (1) | CN110917544B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0648692A (en) * | 1992-07-24 | 1994-02-22 | Komatsu Ltd | Bending type elevated spot work vehicle |
| CN201857758U (en) * | 2010-07-29 | 2011-06-08 | 三一重工股份有限公司 | Delivery pipe supporting device and concreting machinery employing same |
| CN202139858U (en) * | 2011-06-28 | 2012-02-08 | 三一重工股份有限公司 | Jib system and concrete pump vehicle provided with jib system |
| CN102500082A (en) * | 2011-11-18 | 2012-06-20 | 长沙中联消防机械有限公司 | Water pipeline connecting structure for fire truck and fire truck with same |
| CN102827978A (en) * | 2012-09-04 | 2012-12-19 | 无锡市长江液压缸厂 | Hydraulic pipeline connection structure of hydraulic mud gun |
| CN103486370A (en) * | 2013-09-30 | 2014-01-01 | 张胜虎 | Rotating joint, loading arm with rotating joint and loading equipment with loading arm |
| CN203441114U (en) * | 2013-08-09 | 2014-02-19 | 北汽福田汽车股份有限公司 | Material distribution arm support system and material distribution equipment |
| CN104555877A (en) * | 2014-12-30 | 2015-04-29 | 芜湖市金宇石化设备有限公司 | Rotating arm crane pipe for loading hydrochloric acid |
| CN110258256A (en) * | 2019-07-18 | 2019-09-20 | 山东大山路桥工程有限公司 | A kind of spray arm of rotary joint and vehicle-mounted spread equipment |
| CN211486321U (en) * | 2019-12-03 | 2020-09-15 | 长沙中联消防机械有限公司 | Boom structure and operation equipment |
-
2019
- 2019-12-03 CN CN201911219512.6A patent/CN110917544B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0648692A (en) * | 1992-07-24 | 1994-02-22 | Komatsu Ltd | Bending type elevated spot work vehicle |
| CN201857758U (en) * | 2010-07-29 | 2011-06-08 | 三一重工股份有限公司 | Delivery pipe supporting device and concreting machinery employing same |
| CN202139858U (en) * | 2011-06-28 | 2012-02-08 | 三一重工股份有限公司 | Jib system and concrete pump vehicle provided with jib system |
| CN102500082A (en) * | 2011-11-18 | 2012-06-20 | 长沙中联消防机械有限公司 | Water pipeline connecting structure for fire truck and fire truck with same |
| CN102827978A (en) * | 2012-09-04 | 2012-12-19 | 无锡市长江液压缸厂 | Hydraulic pipeline connection structure of hydraulic mud gun |
| CN203441114U (en) * | 2013-08-09 | 2014-02-19 | 北汽福田汽车股份有限公司 | Material distribution arm support system and material distribution equipment |
| CN103486370A (en) * | 2013-09-30 | 2014-01-01 | 张胜虎 | Rotating joint, loading arm with rotating joint and loading equipment with loading arm |
| CN104555877A (en) * | 2014-12-30 | 2015-04-29 | 芜湖市金宇石化设备有限公司 | Rotating arm crane pipe for loading hydrochloric acid |
| CN110258256A (en) * | 2019-07-18 | 2019-09-20 | 山东大山路桥工程有限公司 | A kind of spray arm of rotary joint and vehicle-mounted spread equipment |
| CN211486321U (en) * | 2019-12-03 | 2020-09-15 | 长沙中联消防机械有限公司 | Boom structure and operation equipment |
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| Publication number | Publication date |
|---|---|
| CN110917544B (en) | 2024-05-07 |
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Address after: 410200 No. 997, Section 2, Tengfei Road, Wangcheng District, Changsha City, Hunan Province Applicant after: Hunan Zoomlion emergency equipment Co.,Ltd. Address before: 410200 No. 997, Jinxing Road, Wangcheng District, Changsha City, Hunan Province Applicant before: Changsha Zhonglian Fire-Fighting Machinery Co.,Ltd. |
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