CN102003598B - Knuckle arm bracket device - Google Patents
Knuckle arm bracket device Download PDFInfo
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- CN102003598B CN102003598B CN 201010532893 CN201010532893A CN102003598B CN 102003598 B CN102003598 B CN 102003598B CN 201010532893 CN201010532893 CN 201010532893 CN 201010532893 A CN201010532893 A CN 201010532893A CN 102003598 B CN102003598 B CN 102003598B
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Abstract
The invention discloses a knuckle arm bracket device. The device comprises a frame and a support piece which is positioned on the frame and used for supporting a knuckle arm and is characterized in that: the support piece comprises a first support piece and a second support piece which are arranged oppositely; the frame is hinged with a part outside the end face of the first support piece through a first hinged shaft and is hinged with a part outside the end face of the second support piece through a second hinged shaft; the first hinged shaft is parallel to the axis of the second hinged shaft; the frame also comprises a first limiting structure and a second limiting structure; the outer end of the first support piece and the outer end of the second support piece are supported by the first limiting structure and the second limiting structure respectively; and in the working process, the knuckle arm is supported between the first support piece and the second support piece. The knuckle arm bracket device can compensate a knuckle arm angle deviation, so that the knuckle arm can be always fully contacted with the support piece and higher flexibility and adaptability are achieved.
Description
Technical field
The present invention relates to technical field of engineering machinery, particularly relate to a kind of joint arm support device.
Background technique
Collapsible or telescopic joint arm configuration is used comparatively extensive in technical field of engineering machinery, have this kind joint arm configuration usually such as concreting machineries such as concrete mixer, whitewashing cars.In order to protect joint arm and convenient transportation, behind end-of-job, the joint arm need be packed up and be positioned on the car body usually, at this moment, needs a kind of support device of supporting section arm.
As shown in Figure 1, Fig. 1 is a kind of perspective view of typical joint arm support device; Fig. 2 is the structure explosive view of joint arm support device shown in Figure 1.
This kind joint arm support device mainly comprises frame 10, pad 20 and V-arrangement assembly 30.Frame 10 bottoms are connected on the car body, and the top of frame 10 has crossbeam 101, are fixedly connected a plate 102 on the crossbeam 101; V-arrangement assembly 30 comprises two support blocks 301 of direct contact joint arm, the V shaped slab 302 of fixed support block 301 and the fixed plate of fixing with V shaped slab 302 bottoms 303; Place several piece pad 20 between fixed plate 303 and the connecting plate 102; Fixed plate 303, pad 20 are provided with through hole, are being provided with tapped hole with the corresponding position of through hole on the connecting plate 102, through screw 40 three are fixed together; During work, the joint arm is supported by two support blocks 301.
In the withdrawal process of joint arm, possibly there is the state of not receiving the position, so can produce deviation on the angle; There is certain skew in the luffing plane, promptly produces the skew of substantially horizontal, in addition; When processing joint arm, possibly there are deviation in the contour shape and the preset shape of joint arm, and these situations all possibly cause saving on the support block 301 that arm only falls within a side; And the angle between two support blocks 301 is consistent with the angle of v-component in the existing technology, does not have the function of angle adjustment, therefore; The joint arm disengages or contacts inadequate situation because function of friction can't reset thereby the joint arm occurs with support, make support not have due supporting effect.Thereby joint arm support device of the prior art can not carry out the compensation of augular offset, and adaptability and flexibility are relatively poor.
In addition, each pad 20 in this joint arm support device has certain thickness, thereby can carry out the adjusting of height through the quantity of increase and decrease pad 20.Yet when highly regulating through the mode of increase and decrease pad 20 quantity, the height of adjusting is the integral multiple of pad 20 quantity, regulates discontinuous; And each the adjusting all needs knockout screw 40, complex procedures, and efficient is lower.
Therefore, how the automatic adjusting angle of envoy's arm support device is the present technical issues that need to address of those skilled in the art.
Summary of the invention
The purpose of this invention is to provide a kind of joint arm support device, this joint arm support device possesses the function of automatic adjusting angle.
For solving the problems of the technologies described above; The present invention provides a kind of joint arm support device; Comprise frame and be positioned on the said frame in order to the supporting element of supporting section arm that said supporting element comprises first supporting element and second supporting element that is oppositely arranged, said frame is hinged with said first supporting element end face part in addition through first hinging shaft; Said frame is hinged through the part beyond second hinging shaft and the said second supporting element end face, the parallel axes of said first hinging shaft and said second hinging shaft; Said frame also comprises first limit structure and second limit structure, and the outer end of the outer end of said first supporting element and said second supporting element is supported by said first limit structure and said second limit structure respectively; During work, said joint arm is supported between said first supporting element and said second supporting element.
Preferably, said frame comprises first supporting post and second supporting post on the crossbeam that is fixed on frame, and said first supporting element and said first supporting post are hinged, and said second supporting element and said second supporting post are hinged.
Preferably; Said first limit structure and said second limit structure are located at respectively on said first supporting post and said second supporting post; The top of said first limit structure is towards the downside of the said first supporting element outer end, and the top of said second limit structure is towards the downside of the said second supporting element outer end.
Preferably, the top of said first supporting post is provided with first nut block, and said first nut block is provided with first bolt, and the top of said second supporting post is provided with second nut block, and said second nut block is provided with second bolt; Said first limit structure comprises said first bolt, and said second limit structure comprises said second bolt.
Preferably, inner upper-end surface and the inner all upwards bendings of upper-end surface of said second supporting element of said first supporting element.
Preferably; Said first supporting element and said second supporting element include top plate and two suitable side plates; One end of said top plate has the arcuate structure of downward indent; Said side plate lays respectively at the both sides of said first supporting post and said second supporting post, and said first hinging shaft runs through said first supporting post and two said side plates thereof, and said second hinging shaft runs through said second supporting post and two said side plates thereof.
Preferably, said frame comprises the clamp of Ka Gai on said crossbeam, and said supporting element is positioned on the said clamp; Be provided with stay bolt between the top board of said clamp and the top of said crossbeam, said stay bolt is connected in the top of said crossbeam.
Preferably; The side plate of said clamp is provided with the slotted hole that extends along said bracket height direction; Has tapped hole on the said crossbeam; Said clamp is fixed through the clamping bolt and the said crossbeam that pass said slotted hole and said tapped hole, and the diameter of said clamping bolt is less than the height of said slotted hole.
Preferably, said clamp is fixed through leading screw and said crossbeam.
Preferably, have connecting plate and bolt on the said crossbeam, an end of said bolt and the roof anchorage of said crossbeam, the other end runs through said connecting plate, and the nut of said connecting plate is supported in configuration on the said bolt; Said supporting element is positioned on the said connecting plate.
Supporting element in the joint arm support device provided by the present invention comprises first supporting element and second supporting element that is oppositely arranged; Said frame is hinged through the part beyond first hinging shaft and the said first supporting element end face; Said frame is hinged through the part beyond second hinging shaft and the said second supporting element end face, the parallel axes of said first hinging shaft and said second hinging shaft; Said frame also comprises first limit structure and second limit structure, and the outer end of the outer end of said first supporting element and said second supporting element is supported by said first limit structure and said second limit structure respectively; During work, said joint arm is supported between said first supporting element and said second supporting element.When the joint arm falls between first supporting element and second supporting element, but when having augular offset, at first contact with the supporting element line with predeterminated position; And to supporting element generation pressure, this pressure is along with the whereabouts of joint arm increases gradually, and first supporting element and second supporting element can receive to compel to rotate around hinging shaft; The joint arm finally is able to reset then to preset rotated position, and realizes contacting with the face of joint arm; At this moment, supporting element contacts with the joint arm fully, rests on stable status; In addition, when processing joint arm, possibly there are deviation in the contour shape and the preset shape of joint arm, can compensate through the rotation of first supporting element and second supporting element equally.Therefore, this kind joint arm support device can compensate the augular offset of joint arm, and; The process that supporting element sways has continuity; Can adjust angle in accurate and flexible ground, envoy's arm can fully contact with supporting element all the time, has higher flexibility and adaptability.
In another kind of embodiment, said frame comprises the clamp of Ka Gai on said crossbeam, and said supporting element is positioned on the said clamp; Be provided with stay bolt between the top board of said clamp and the top of said crossbeam, said stay bolt is connected in the top of said crossbeam.Can realize the continuous adjusting of height through rotation stay bolt adjustment joint arm support height of devices; And, in the process of regulating height, need not other handling procedures, the action that only need implement to rotate gets final product, and is easy and simple to handle, helps to increase work efficiency.
Description of drawings
Fig. 1 is a kind of perspective view of typical joint arm support device;
Fig. 2 is the structure explosive view of joint arm support device shown in Figure 1;
Fig. 3 is the structural representation of a kind of embodiment of joint arm support device provided by the present invention;
Fig. 4 is a kind of perspective view of first supporting element in the joint arm support device shown in Figure 3;
Fig. 5 is the another kind of perspective view of first supporting element in the joint arm support device shown in Figure 3;
Fig. 6 is the structural representation of limit structure in the joint arm support device shown in Figure 3;
Fig. 7 is the structural representation of another embodiment of joint arm support device provided by the present invention.
Embodiment
Core of the present invention provides a kind of joint arm support device, and this joint arm support device possesses the function of automatic adjusting angle.
In order to make those skilled in the art person understand the present invention program better, the present invention is done further detailed description below in conjunction with accompanying drawing and embodiment.
Please refer to Fig. 3, Fig. 3 is the structural representation of a kind of embodiment of joint arm support device provided by the present invention.
Joint arm support device comprises frame 1, and frame 1 generally includes crossbeam 1-1 and base 1-3, and crossbeam 1-1 and base 1-3 fix through the frame matrix 1-2 between the two.Joint arm support device is mainly used in jib class machinery, and jib class machinery generally includes car body, and joint arm support device places car body to support the joint arm of regaining, and joint arm support device links to each other with car body through the base 1-3 in the frame 1.
Be provided with the supporting element that carries the supporting section arm on the frame 1 in this mode of execution; Supporting element comprises first supporting element 2 and second supporting element 3 that is oppositely arranged; Frame 1 is hinged through the part beyond first hinging shaft 4 and first supporting element, 2 end faces; Frame 1 is hinged through the part beyond second hinging shaft 5 and second supporting element, 3 end faces; Be that part first supporting element 2 and part second supporting element 3 are between two hinging shafts; This paper will be called the inner of inner and second supporting element 3 of first supporting element 2 at the two-part between first hinging shaft 4 and second hinging shaft 5, and the other end of two relative therewith supporting elements is the outer end of first supporting element 2 and the outer end of second supporting element 3; Frame 1 also comprises first limit structure and second limit structure, and the outer end of first supporting element 2 is supported by first limit structure, and the outer end of second supporting element 3 is supported by second limit structure; Support described herein is not a kind of fixing state; When first supporting element 2 and 3 rotations of second supporting element, corresponding limit structure is left in the outer end of two supporting elements, and this kind set-up mode can make between first supporting element 2 and second supporting element 3 and have certain included angle; In addition; First supporting element 2 inner with second supporting element, 3 the inners between distance need maximum diameter less than the joint arm, when guaranteeing that the joint arm falls, meeting contact with the inner of supporting element; In addition, the parallel axes of first hinging shaft 4 and second hinging shaft 5, thus first supporting element 2 and second supporting element 3 are rotated along same vertical plane.
When the joint arm falls between first supporting element 2 and second supporting element 3, but when having augular offset, at first contact the inner of first supporting element 2 or the inner of second supporting element 3 with predeterminated position; Or be partial to one of them, this kind contact is the line contact, and supporting element is produced pressure; This pressure is along with the whereabouts of joint arm increases gradually, and first supporting element 2 and second supporting element 3 can receive to compel to rotate around hinging shaft, and the joint arm is then to preset rotated position; Finally be able to reset, and realize contacting, at this moment with the face of joint arm; Supporting element contacts with the joint arm fully, rests on stable status; In addition, when processing joint arm, possibly there are deviation in the contour shape and the preset shape of joint arm, with in like manner above-mentioned, can adjust angle between first supporting element 2 and second supporting element 3 to compensate this kind deviation.
Therefore, this kind joint arm support device can compensate the augular offset of joint arm, and; The process that supporting element sways has continuity; Can adjust angle in accurate and flexible ground, envoy's arm can fully contact with supporting element all the time, has higher flexibility and adaptability.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is a kind of perspective view of first supporting element in the joint arm support device shown in Figure 3; Fig. 5 is the another kind of perspective view of first supporting element in the joint arm support device shown in Figure 3.
In this embodiment; Can fixedly install first supporting post 6 and second supporting post 7 on the frame 1; One end of first supporting element 2 is hinged through first hinging shaft 4 and first supporting post 6, and an end of second supporting element 3 is hinged through second hinging shaft 5 and second supporting post 7.First supporting post 6 and second supporting post 7 can be column structures, also can be tubular structures as shown in Figure 3; First supporting element 2 can be made up of two blocks of side plates and top board; Form plate frame structure; All has corresponding axis hole on the two blocks of side plates and first supporting post 6; First hinging shaft 4 (can be bearing pin) runs through axis hole, is fixed with first support block, 21, the second supporting elements 3 and first supporting element 2 on the top board and has same structure.First support block 21 is directly fitted with the joint arm that falls with second support block 31 and is contacted, and bears the gravity of joint arm, and the materials processing that support block can adopt anti-pressure ability can damage the joint arm by force and not forms.
Can the upwards shape of bending be processed in the upper-end surface of the inner of the inner of first supporting element 2 and second supporting element 3; Be a spoonful shape like Fig. 3 and first supporting element 2 shown in Figure 4; First supporting element 2 comprises top plate and two suitable side plates; The arcuate structure that one end of top plate (promptly forming an end of first supporting element, 2 the inners) has downward indent, then the upper-end surface of the inner of first supporting element has the radian that necessarily makes progress, and first hinging shaft 4 runs through first supporting post 6 and two side plates thereof; Second supporting element 3 has identical structure with first supporting element 2; This kind structure can be responded to the pressure of joint arm more delicately, is convenient to receive to compel the generation of rotation, supports the joint arm simultaneously better.
This kind joint arm support apparatus structure is simple, process easyly, and the angle adjustment that the structure of first supporting post 6 and second supporting post 7 makes supporting element is freedom more.
Joint arm support device is in the process of angular adjustment, and the sense of rotation of first supporting element 2 and second supporting element 3 is in opposite directions the time, can realize the increase of angle between supporting element or reduces.Can first limit structure and second limit structure be arranged on first supporting post 6 and second supporting post 7; First limit structure and second limit structure have certain height; And the top of the top of first limit structure and second limit structure is respectively towards the downside of first supporting element, 2 outer ends and the downside of second supporting element, 3 outer ends, and promptly the outer end of the outer end of first supporting element 2 and second supporting element 3 is supported by first limit structure on the frame 1 and second limit structure.After first supporting element 2 outwards flipped an angle, the downside of its outer end and first limit structure were conflicted, no longer upset, and second supporting element 3 and second limit structure are like this equally.Therefore, first limit structure and second limit structure can limit the angle between first supporting element 2 and second supporting element 3 within the specific limits, help to prevent first supporting element 2 and 6 upsets of first supporting post excessively, thus the effect that forfeiture is supported.
Please refer to Fig. 6, Fig. 6 is the structural representation of limit structure in the joint arm support device shown in Figure 3.
First limit structure and second limit structure can be the limiting stopper structures that is fixed on the frame 1; Also can be bolt component as shown in Figure 6, on fixing respectively first nut block 13 in the top of first supporting post 6 and second supporting post 7 and second nut block, 11, the first nut block 13 and second nut block 11, dispose first bolt 12 and second bolt 10 respectively; As shown in Figure 3 (in Fig. 3; Because the angle of diagrammatic sketch, first bolt 12 and first nut block 13 do not show, please combine Fig. 6); The downside of first bolt 12 and first supporting element 2 is conflicted; The downside of second bolt 10 and second supporting element 3 is conflicted, and confirms the maximum angle between first supporting element 2 and second supporting element 3, and can be through the height of rotation adjusting first bolt 10 and second bolt 12; And then the number of degrees of adjusting angle, the flexibility that further improves joint arm support device.
Please refer to Fig. 7, Fig. 7 is the structural representation of another embodiment of joint arm support device provided by the present invention.
In this embodiment; Frame 1 can also comprise clamp 1-4; Clamp 1-4 comprises two horizontal side plate and top boards, and two horizontal side plates lay respectively at the both sides of crossbeam 1-1, and top board Ka Gai is on crossbeam 1-1 top; The crossbeam 1-1 that is frame 1 is set in the clamp 1-4, and first supporting element 2 and second supporting element 3 are positioned on the clamp 1-4.Be provided with stay bolt 9 between clamp 1-4 and the crossbeam 1-1.
Tapped hole can be offered in the top of crossbeam 1-1, and stay bolt 9 screws in the tapped hole, and more than one stay bolt 9 can be set, and at this moment, clamp 1-4 is supported by stay bolt 9.Rotation stay bolt 9, stay bolt 9 is in its rotational, along its axial direction translation; Promptly move up and down; And then the distance between increase or shortening clamp 1-4 and the crossbeam 1-1, realize whole joint arm support height of devices adjusting, the height tolerance that produces when falling with the expansion joint arm.
In this mode of execution,, can realize the continuous adjusting of height through rotation stay bolt 9 adjustment joint arm support height of devices; And, in the process of regulating height, need not other handling procedures, the action that only need implement to rotate gets final product, and is easy and simple to handle, helps to increase work efficiency.
In order to reach above-mentioned technique effect, also connecting plate and bolt can be set on crossbeam 1-1, connecting plate can be a slab construction, also can be processed into the shape of above-mentioned clamp 1-4; One end of bolt and the roof anchorage of crossbeam 1-1, the other end runs through connecting plate, disposes nut on the bolt, by this nut support connecting plate; Supporting element is positioned on the connecting plate.Swivel nut can increase or shorten the distance between connecting plate and the crossbeam 1-1, can realize saving the arm support height of devices equally and regulate.
Further, can on the horizontal side plate of clamp 1-4, process the slotted hole 8 that extends along frame 1 short transverse, tapped hole correspondingly is set on the crossbeam 1-1; Clamping bolt passes slotted hole 8 and tapped hole is fixed clamp 1-4 and crossbeam 1-1; And the diameter of clamping bolt is less than the height of slotted hole 8, therefore, and when clamp 1-4 moves up and down; Because there is certain height in slotted hole 8, clamp 1-4 moves up and down the restriction that does not receive clamping bolt.Therefore, being provided with of slotted hole 8 helps clamping bolt fixing chuck plate 1-4 to a certain extent, can realize that envoy's arm support device is in more firm state on the basis of highly regulating.
Can also clamp 1-4 and crossbeam 1-1 be fixed through leading screw and with the supporting nut of leading screw.Through the position of adjustment nut, adjust the horizontal relative position of clamp 1-4 and crossbeam 1-1, thereby can realize the adjusting of supporting element substantially horizontal, further improve the flexibility of joint arm support device.
More than joint arm support device provided by the present invention has been carried out detailed introduction.Used concrete example among this paper principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (11)
1. one kind is saved the arm support device; Comprise frame (1) and be positioned on the said frame (1) supporting element in order to the supporting section arm; It is characterized in that; Said supporting element comprises first supporting element (2) and second supporting element (3) that is oppositely arranged; Said frame (1) is hinged through the part beyond first hinging shaft (4) and said first supporting element (2) end face, and said frame (1) is hinged with the part beyond said second supporting element (3) end face through second hinging shaft (5), the parallel axes of said first hinging shaft (4) and said second hinging shaft (5); Said frame also comprises first limit structure and second limit structure; The outer end of the outer end of said first supporting element (2) and said second supporting element (3) is supported by said first limit structure and said second limit structure respectively; Part on said first supporting element and said second supporting element between said first hinging shaft and said second hinging shaft is the inner of first supporting element, the inner of second supporting element, is respectively the outer end of the outer end of first supporting element, second supporting element with the inner of first supporting element, the inner relative the other end of second supporting element; During work, said joint arm is supported between said first supporting element (2) and said second supporting element (3).
2. joint arm support device according to claim 1; It is characterized in that; Said frame (1) comprises first supporting post (6) and second supporting post (7) on the crossbeam (1-1) that is fixed on frame (1); Said first supporting element (2) is hinged with said first supporting post (6), and said second supporting element (3) is hinged with said second supporting post (7).
3. joint arm support device according to claim 2; It is characterized in that; Said first limit structure and said second limit structure are located at respectively on said first supporting post (6) and said second supporting post (7); The top of said first limit structure is towards the downside of said first supporting element (2) outer end, and the top of said second limit structure is towards the downside of said second supporting element (3) outer end.
4. joint arm support device according to claim 3; It is characterized in that; The top of said first supporting post (6) is provided with first nut block (13); Said first nut block (13) is provided with first bolt (12), and the top of said second supporting post (7) is provided with second nut block (11), and said second nut block (11) is provided with second bolt (10); Said first limit structure comprises said first bolt (12), and said second limit structure comprises said second bolt (10).
5. according to each described joint arm support device of claim 2 to 4, it is characterized in that all upwards bendings of upper-end surface that upper-end surface that said first supporting element (2) is inner and said second supporting element (3) are inner.
6. joint arm support device according to claim 5; It is characterized in that; Said first supporting element (2) includes top plate and two suitable side plates with said second supporting element (3); One end of said top plate has the arcuate structure of downward indent; Said side plate lays respectively at the both sides of said first supporting post (6) and said second supporting post (7), and said first hinging shaft (4) runs through said first supporting post (6) and two said side plates thereof, and said second hinging shaft (5) runs through said second supporting post (7) and two said side plates thereof.
7. joint arm support device according to claim 5 is characterized in that, said frame (1) comprises the clamp (1-4) of Ka Gai on said crossbeam (1-1), and said supporting element is positioned on the said clamp (1-4); Be provided with stay bolt (9) between the top of the top board of said clamp (1-4) and said crossbeam (1-1), said stay bolt (9) is connected in the top of said crossbeam (1-1).
8. joint arm support device according to claim 7; It is characterized in that; The side plate of said clamp (1-4) is provided with the slotted hole (8) that extends along said frame (1) short transverse; Have tapped hole on the said crossbeam (1-1), said clamp (1-4) is fixing through the clamping bolt and the said crossbeam (1-1) that pass said slotted hole (8) and said tapped hole, and the diameter of said clamping bolt is less than the height of said slotted hole (8).
9. joint arm support device according to claim 7 is characterized in that, said clamp (1-4) is fixing through leading screw and said crossbeam (1-1).
10. joint arm support device according to claim 5; It is characterized in that having connecting plate and bolt on the said crossbeam (1-1), the roof anchorage of an end of said bolt and said crossbeam (1-1); The other end runs through said connecting plate, and the nut of said connecting plate is supported in configuration on the said bolt; Said supporting element is positioned on the said connecting plate.
11. joint arm support device according to claim 1 is characterized in that, all upwards bendings of upper-end surface that upper-end surface that said first supporting element (2) is inner and said second supporting element (3) are inner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010532893 CN102003598B (en) | 2010-11-04 | 2010-11-04 | Knuckle arm bracket device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010532893 CN102003598B (en) | 2010-11-04 | 2010-11-04 | Knuckle arm bracket device |
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| CN102003598A CN102003598A (en) | 2011-04-06 |
| CN102003598B true CN102003598B (en) | 2012-11-07 |
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| CN 201010532893 Active CN102003598B (en) | 2010-11-04 | 2010-11-04 | Knuckle arm bracket device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| EP2881524A1 (en) * | 2013-12-09 | 2015-06-10 | Putzmeister Engineering GmbH | Automatic concrete pump comprising a mast placement unit for a distribution mast |
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| CN102628320B (en) * | 2012-04-20 | 2014-09-10 | 三一汽车制造有限公司 | Concrete pump truck and boom-replacing system thereof |
| CN105788665A (en) * | 2014-12-26 | 2016-07-20 | 中核建中核燃料元件有限公司 | Device for assembling and supporting fuel assemblies |
| CN110172804B (en) * | 2019-06-18 | 2024-05-07 | 珠海格力电器股份有限公司 | Supporting device |
| CN110153973A (en) * | 2019-06-28 | 2019-08-23 | 辽宁军锋机械制造有限公司 | A kind of three axis six-way adjustable tools of automobile power assembly |
| CN114537258B (en) * | 2022-03-31 | 2023-06-23 | 湖南三一中型起重机械有限公司 | Arm support frame and arm dismounting auxiliary device |
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| CN102003598A (en) | 2011-04-06 |
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Owner name: XUZHOU XUGONG SCHWING MACHINERY CO., LTD. Free format text: FORMER OWNER: BUILDING MACHINERY CO., LTD., XCMG CONSTRUCTION MACHINERY CO., LTD. Effective date: 20130424 |
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