CN103010968B - Suspension arm support and engineering machinery - Google Patents
Suspension arm support and engineering machinery Download PDFInfo
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- CN103010968B CN103010968B CN201210524433.8A CN201210524433A CN103010968B CN 103010968 B CN103010968 B CN 103010968B CN 201210524433 A CN201210524433 A CN 201210524433A CN 103010968 B CN103010968 B CN 103010968B
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- suspension arm
- arm support
- rolling body
- bearing
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Abstract
The invention discloses a suspension arm support. The suspension arm support (100) comprises a support body (20) and a rolling body (10); both ends of the rolling body (10) are borne on the support body (20); and the rolling body (10) can rotate around the axial line (C-C) of the rolling body (10). The invention further discloses engineering machinery. The suspension arm support is in rolling friction with a suspension arm, so that the attrition of the suspension arm and the suspension arm support can be reduced, so the service lives of the suspension arm and the suspension arm support are prolonged.
Description
Technical field
The present invention relates to engineering machinery field, particularly, relate to a kind of suspension arm support and construction machinery and equipment.
Background technology
In the elevator machineries such as hoisting crane, arm, as the important load-supporting part in hoisting crane, plays vital effect in hoisting crane working process.Usually, the arm of car hosit is arranged on turntable, and turntable is arranged on chassis, the vehicle frame on chassis is also provided with the suspension arm support for supporting arm, when hoisting crane does not work, arm is placed in suspension arm support, so that ensure in the process of mobile crane in translation and parking that arm is stablized.
Be illustrated in figure 1 the structural representation of the suspension arm support of prior art, suspension arm support 100 is fixedly mounted on vehicle frame 410 by fastener, the top of suspension arm support 100 is formed with recess 21, two cushion blocks 23 are relatively set with in recess 21, arm 200 is placed in recess 21 and the bottom of arm 200 is pressed against on cushion block 23 under the Action of Gravity Field of arm 200, make the position stability of arm 200, not easily shake or tilt, suspension arm support 100 can play supporting role to arm 200.In the process of mobile crane in translation, due to the external factor such as to jolt of car hosit, slight motion can be there is in arm 200, thus can relative sliding be there is between arm 200 and the cushion block 23 being fixed in recess 21, cause producing larger force of sliding friction between arm 200 and cushion block 23, make the fastener installing suspension arm support 100 be subject to larger External Force Acting, it may be caused impaired.In addition, arm 200 and suspension arm support 100 each other friction can cause arm 200 and suspension arm support 100 to be all worn, and reduce their service life.
Summary of the invention
The object of this invention is to provide a kind of suspension arm support and construction machinery and equipment, be friction of rolling between this suspension arm support and arm, the wearing and tearing of arm and suspension arm support can be reduced, the service life of both prolongations.
To achieve these goals, an aspect of of the present present invention provides a kind of suspension arm support, and wherein, this suspension arm support comprises stake body and rolling body, and the two supports of described rolling body is on described stake body, and described rolling body can rotate around the axis of described rolling body.
Preferably, described rolling body comprises cylinder and is fixedly installed on two rotating shafts at two ends of this cylinder, and described rotating shaft is arranged on described stake body rotationally.
Preferably, described rolling body also comprises bearing and bearing seat, and this bearing seat is fixed on described stake body, and described bearing to be contained in described bearing seat and to be set in corresponding described rotating shaft.
Preferably, described bearing is antifriction-bearing box.
Preferably, each described rotating shaft is arranged with two bearings, these two bearings are arranged along axis at intervals.
Preferably, described rolling body also comprises spacer, and this spacer to be set in described bearing seat and between described two bearings.
Preferably, described bearing seat is formed with lubrication hole, described spacer is formed with the through hole corresponding with described lubrication hole.
Preferably, described rolling body also comprises lubricated plug, and this lubricated plug can block described lubrication hole from outside.
Preferably, described rotating shaft is formed with the shaft shoulder, one end of described rotating shaft is formed with threaded portion, and described rolling body also comprises jam nut, and this jam nut is connected with described threaded portion, to be pressed against on the described shaft shoulder by the described bearing near described cylinder.
Preferably, described rolling body also comprises end cap, and this end cap is arranged on one end of described bearing seat, to close the end face of described bearing seat.
Preferably, described rolling body also comprises sealing member, and the seal is arranged on the other end of described bearing seat, to close the end face of described bearing seat.
Preferably, described rolling body also comprises attaching parts, and this attaching parts is fixed on the other end of described rotating shaft and described rotating shaft is fixedly connected with described cylinder by described attaching parts.
Preferably, described cylinder is cylindric, and described attaching parts is fixedly nested in described cylinder.
Preferably, described rolling body is multiple, and the two ends of each described rolling body are all bearing on described stake body.
Preferably, the top of described stake body is formed with recess.
Preferably, described stake body comprises two legs, and these two legs are fixedly connected with vehicle frame respectively.
Another aspect of the present invention provides a kind of construction machinery and equipment, this project machinery comprises arm, suspension arm support, turntable and chassis, described arm is arranged on described turntable, described turntable is arranged on described chassis, described suspension arm support is fixedly mounted on the vehicle frame on described chassis, described arm can be bearing in described suspension arm support, and wherein, described suspension arm support is suspension arm support recited above.
Another aspect of the invention provides a kind of construction machinery and equipment, this project machinery comprises arm, suspension arm support, turntable, chassis and trailer, described arm is arranged on described turntable, described turntable is arranged on described chassis, described suspension arm support is fixedly mounted on described trailer, described arm can be bearing in described suspension arm support, and wherein, described suspension arm support is suspension arm support recited above.
By technique scheme, the stake body of suspension arm support of the present invention is fixedly mounted on vehicle frame, and rolling element bearing can rotate on stake body on stake body.When the arm of suspension arm support supporting moves under external force, rolling body can roll thereupon, thus between suspension arm support and arm, friction of rolling occurs, to reduce the wearing and tearing of arm and suspension arm support, and the service life of both prolongations.Meanwhile, the stressed reduction in junction of stake body and vehicle frame, is not easily damaged, and improves structural stability.
Other features and advantages of the present invention are described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the assembly drowing of the suspension arm support of prior art;
Fig. 2 is the structural representation of the suspension arm support of embodiments of the present invention;
Fig. 3 is the assembly drowing of the suspension arm support of embodiments of the present invention;
Fig. 4 is the schematic diagram of the construction machinery and equipment of the first embodiment of the present invention; And
Fig. 5 is the schematic diagram of the construction machinery and equipment of the second embodiment of the present invention.
Description of reference numerals
10 rolling body 11 cylinders
The 12 rotating shaft 12 ' shaft shoulders
12 " threaded portion 13 bearing
14 bearing seat 14 ' lubrication holes
14 " lubricated plug 15 spacer
15 ' through hole 16 attaching parts
17 jam nut 18 end caps
19 sealing member 20 stake bodies
21 recess 22 legs
23 cushion blocks
100 suspension arm support 200 arms
300 turntable 400 chassis
410 vehicle frame 500 trailers
C-C axis
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, detailed description of the invention described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
As shown in Figure 3, an aspect of of the present present invention provides a kind of suspension arm support, and wherein, this suspension arm support 100 comprises stake body 20 and rolling body 10, the two supports of described rolling body 10 is on described stake body 20, and described rolling body 10 can rotate around the axis C-C of described rolling body 10.
The stake body 20 of suspension arm support 100 of the present invention is fixedly mounted on vehicle frame 410, and rolling body 10 to be bearing on stake body 20 and can to rotate on stake body 20.When the arm 200 that suspension arm support 100 supports moves under external force, rolling body 10 can roll thereupon, thus there is friction of rolling between suspension arm support 100 and arm 200, and to reduce the wearing and tearing of arm 200 and suspension arm support 100, the service life of both prolongations.Meanwhile, stake body 20 and the stressed reduction in junction of vehicle frame 410, be not easily damaged, improve structural stability.In order to ensure the stability of strutting system of suspension arm support 100 pairs of arms 200, suspension arm support 100 is preferably formed to symmetrical structure.
Rolling body 10 can be formed as various structure and shape, such as, rolling body 10 is formed as columniform shaft-like, as shown in Figure 2, as a kind of preferred implementation of the present invention, described rolling body 10 comprises cylinder 11 and is fixedly installed on two rotating shafts 12 at two ends of this cylinder 11, and described rotating shaft 12 is arranged on described stake body 20 rotationally.Cylinder 11 is formed as the cylindrical shape of hollow, to facilitate the weight of rotating and reducing suspension arm support 100.Arm 200 is supported on cylinder 11, and the lower surface of arm 200 is preferably formed as plane, thus suspension arm support 100 and arm 200 are formed as plane-plane contact.The surperficial smoother of cylinder 11, thus reduce the friction force between suspension arm support 100 and arm 200.Cylinder 11 is arranged on stake body 20 by the rotating shaft 12 at two ends, rotating shaft 12 can be rotated relative to stake body 20, thus drives cylinder 11 to rotate, and makes to be formed as friction of rolling between suspension arm support 100 and arm 200, to reduce the resistance of motion of arm 200, and then reduce wearing and tearing.
As shown in Figure 2, more smooth and easy in order to make rotating shaft 12 rotate, preferably, described rolling body 10 also comprises bearing 13 and bearing seat 14, this bearing seat 14 is fixed on described stake body 20, and described bearing 13 to be contained in described bearing seat 14 and to be set in corresponding described rotating shaft 12.Rotating shaft 12 is arranged in bearing seat 14 by bearing 13, thus can reduce the rotary resistance that rotating shaft 12 is subject to, and make it rotate more smooth and easy, and then the friction force between arm 200 and suspension arm support 100 reduces further, anti-wear better effects if.Bearing seat 14 is formed as cylindric and can be welded on stake body 20, and bearing 13 is arranged on stake body 20 by bearing seat 14, facilitates the installation of all parts and fixes.
Bearing 13 can select the bearing of various known features, and as shown in Figure 2, preferably, described bearing 13 is antifriction-bearing box.The friction drag of antifriction-bearing box is less, and the resistance that rotating shaft 12 is rotated is reduced to minimum, farthest can reduce the friction force between arm 200 and suspension arm support 100.
As shown in Figure 2, stably support in order to countershaft 12 is formed, preferably, each described rotating shaft 12 is arranged with two bearings 13, these two bearings 13 are arranged along axis C-C interval.Two bearings 13 to be set in successively in rotating shaft 12 and along the axis of axis C-C(and rotating shaft 12) interval arranges, prevent from mutually interfering and friction between two bearings 13, and two bearing 13 countershafts 12 form two strong points, make the installation of rotating shaft 12 more stable.
Because the rotation of rotating shaft 12 can produce application force to bearing 13, in order to prevent bearing 13 C-C play vertically, as shown in Figure 2, preferably, described rolling body 10 also comprises spacer 15, this spacer 15 to be set in described bearing seat 14 and between described two bearings 13, thus prevents two bearings 13 C-C play and mutually interfering vertically.Spacer 15 is formed as circular and diameter is slightly less than bearing seat 14, makes the outer circumference surface of spacer 15 be fitted on the inner peripheral surface of bearing seat 14, with by two bearings 13 vertically C-C separate.
As shown in Figure 2, conveniently countershaft 12 and bearing 13 lubricate, and preferably, described bearing seat 14 is formed with lubrication hole 14 ', described spacer 15 is formed with the through hole 15 ' corresponding with described lubrication hole 14 '.Lubrication hole 14 ' is communicated with through hole 15 ', lubricating oil can inject the space of the inside of spacer 15 by lubrication hole 14 ' and through hole 15 ', thus can countershaft 12 and bearing 13 lubricate, reduce the friction between rotating shaft 12 and bearing 13, extend their service life.
As shown in Figure 2, in order to the closed lubrication hole 14 ' when not adding lubricating oil, preferably, described rolling body 10 also comprises lubricated plug 14 ", this lubricated plug 14 " described lubrication hole 14 ' can be blocked from outside.When adding lubricating oil, by lubricated plug 14 " screw down from lubrication hole 14 ', add lubricating oil by lubrication hole 14 '; When not needing to add lubricating oil, lubricated plug 14 " block lubrication hole 14 ', prevent outside impurity etc. from entering bearing seat 14 inner.
As shown in Figure 2, in order to carry out axial location to all parts in bearing seat 14, preferably, described rotating shaft 12 is formed with the shaft shoulder 12 ', one end of described rotating shaft 12 is formed with threaded portion 12 "; described rolling body 10 also comprises jam nut 17, this jam nut 17 and described threaded portion 12 " be threaded, so that the described bearing 13 near described cylinder 11 is pressed against on the described shaft shoulder 12 '.Jam nut 17 is tightened in the threaded portion 12 of rotating shaft 12 " on, to apply thrust to the bearing 13 of one end near rotating shaft 12, make bearing 13 and spacer 15 can not C-C play vertically, ensure that installation site is stablized.
Bearing 13 and rotating shaft 12 is caused to wear and tear in order to prevent extraneous impurity etc. from entering in bearing seat 14, as shown in Figure 2, preferably, described rolling body 10 also comprises end cap 18, this end cap 18 is arranged on the right-hand member of described bearing seat 14, to close the right side of described bearing seat 14; Described rolling body 10 also comprises sealing member 19, the seal 19 is arranged on the left end of described bearing seat 14, to close the left side of described bearing seat 14, thus form Packed cavity in bearing seat 14, to hold rotating shaft 12, bearing 13 and spacer 15, avoid them be subject to the impact of external environment condition and wearing and tearing occur and prevents lubricating oil from leaking, ensure good lubricant effect.
As shown in Figure 2, the connection of conveniently cylinder 11 and rotating shaft 12, preferably, described rolling body 10 also comprises attaching parts 16, and this attaching parts 16 is fixed on the other end of described rotating shaft 12 and described rotating shaft 12 is fixedly connected with described cylinder 11 by described attaching parts 16.Because cylinder 11 is the cylindrical shape of hollow, rotating shaft 12 is cylindrical, is inconvenient between the two connect, is therefore connected by attaching parts 16, to ensure the stability that both connect and higher by force intensity.Further preferably, as shown in Figure 2, attaching parts 16 is formed as circular lid, described attaching parts 16 is fixedly nested in described cylinder 11, the inner peripheral surface that the outer circumference surface of attaching parts 16 is fitted in cylinder 11 is fixed together by modes such as welding, and the end face of attaching parts 16 and the left end of rotating shaft 12 are fixed together.When cylinder 11 is subject to the application force of arm 200, cylinder 11 can drive rotating shaft 12 to rotate, and cylinder 11 and rotating shaft 12 are connected firmly.
In order to support arm 200 better, preferably, described rolling body 10 is multiple, the two ends of each described rolling body 10 are all bearing on described stake body 20, multiple rolling body 10 is arranged along the axial parallel interval of arm 200, to provide larger bearing force to arm 200, ensure that arm 200 is stably placed.
As shown in Figure 2, because rolling body 10 is arranged on the top of stake body 20, preferably, the top of described stake body 20 is formed with recess 21, cylinder 11 is positioned at the top of recess 21, thus avoids stake body 20 pairs of cylinders 11 cause obstruction and interfere, and makes cylinder 11 can rotate flexibly, the impact of obstacle can not be subject to, and also more convenient installation.
As shown in Figure 3, conveniently suspension arm support 100 is installed on vehicle frame 410, and preferably, described stake body 20 comprises two legs 22, and these two legs 22 are fixedly connected with vehicle frame 410 respectively.Two legs 22 are formed in the bottom of stake body 20 and are fastenedly connected by fastener and vehicle frame 410, and suspension arm support 100 can be arranged on vehicle frame 410 easily, and Stability Analysis of Structures, be connected firmly.
As shown in Figure 4, another aspect of the present invention provides a kind of construction machinery and equipment, this project machinery comprises arm 200, suspension arm support 100, turntable 300 and chassis 400, described arm 200 is arranged on described turntable 300, described turntable 300 is arranged on described chassis 400, and described suspension arm support 100 is fixedly mounted on the vehicle frame 410 on described chassis 400, and described arm 200 can be bearing in described suspension arm support 100, wherein, described suspension arm support 100 is suspension arm support recited above.Suspension arm support 100 of the present invention is applicable to any construction machinery and equipment with arm 200, particularly car hosit, and as shown in the first embodiment of construction machinery and equipment of the present invention, this project machinery is middle-size and small-size car hosit, its arm 200 shorter.Owing to being formed as friction of rolling between suspension arm support 100 and arm 200, the friction drag between suspension arm support 100 and arm 200 can be reduced, arm 200 is moved swimmingly in suspension arm support 100, thus the wearing and tearing of suspension arm support 100 and arm 200 can be reduced, the service life of elongate member.
As shown in Figure 5, another aspect of the invention provides a kind of construction machinery and equipment, this project machinery comprises arm 200, suspension arm support 100, turntable 300, chassis 400 and trailer 500, described arm 200 is arranged on described turntable 300, described turntable 300 is arranged on described chassis 400, and described suspension arm support 100 is fixedly mounted on described trailer 500, and described arm 200 can be bearing in described suspension arm support 100, wherein, described suspension arm support 100 is suspension arm support recited above.As shown in the second embodiment of construction machinery and equipment of the present invention, this project machinery is large-scale car hosit, its arm 200 longer, suspension arm support 100 is arranged on trailer 500, with stable support arm 200.Owing to being formed as friction of rolling between suspension arm support 100 and arm 200, the friction drag between suspension arm support 100 and arm 200 can be reduced, arm 200 is moved swimmingly in suspension arm support 100, thus the wearing and tearing of suspension arm support 100 and arm 200 can be reduced, the service life of elongate member.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, can be combined by any suitable mode, in order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible array mode.
In addition, also can carry out combination in any between various different embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (13)
1. a suspension arm support, it is characterized in that, this suspension arm support (100) comprises stake body (20) and rolling body (10), the two supports of described rolling body (10) is on described stake body (20), described rolling body (10) can rotate around the axis of described rolling body (10) (C-C)
Described rolling body (10) comprises cylinder (11) and is fixedly installed on two rotating shafts (12) at two ends of this cylinder (11), described rotating shaft (12) is arranged on described stake body (20) rotationally
Described rolling body (10) also comprises bearing (13) and bearing seat (14), this bearing seat (14) is fixed on described stake body (20), described bearing (13) to be contained in described bearing seat (14) and to be set in corresponding described rotating shaft (12)
Each described rotating shaft (12) is arranged with two bearings (13), these two bearings (13) are arranged along axis (C-C) interval,
Described rolling body (10) also comprises spacer (15), and this spacer (15) to be set in described bearing seat (14) and to be positioned between described two bearings (13),
(14) are formed with lubrication hole (14 ') to described bearing seat, and described spacer (15) is formed with the through hole (15 ') corresponding with described lubrication hole (14 ').
2. suspension arm support according to claim 1, is characterized in that, described bearing (13) is antifriction-bearing box.
3. suspension arm support according to claim 1, is characterized in that, described rolling body (10) also comprises lubricated plug (14 "), and this lubricated plug (14 ") described lubrication hole (14 ') can be blocked from outside.
4. suspension arm support according to claim 1, it is characterized in that, (12) are formed with the shaft shoulder (12 ') in described rotating shaft, one end of described rotating shaft (12) is formed with threaded portion (12 "); described rolling body (10) also comprises jam nut (17); and this jam nut (17) and described threaded portion (12 ") be threaded, so that the described bearing (13) near described cylinder (11) is pressed against on the described shaft shoulder (12 ').
5. suspension arm support according to claim 1, it is characterized in that, described rolling body (10) also comprises end cap (18), this end cap (18) is arranged on one end of described bearing seat (14), to close the end face of described bearing seat (14).
6. suspension arm support according to claim 5, it is characterized in that, described rolling body (10) also comprises sealing member (19), the seal (19) is arranged on the other end of described bearing seat (14), to close the end face of described bearing seat (14).
7. suspension arm support according to claim 1, it is characterized in that, described rolling body (10) also comprises attaching parts (16), and this attaching parts (16) is fixed on the other end of described rotating shaft (12) and described rotating shaft (12) is fixedly connected with described cylinder (11) by described attaching parts (16).
8. suspension arm support according to claim 7, is characterized in that, described cylinder (11) is cylindric, and described attaching parts (16) is fixedly nested in described cylinder (11).
9. suspension arm support according to claim 1, is characterized in that, described rolling body (10) is for multiple, and the two ends of each described rolling body (10) are all bearing on described stake body (20).
10. suspension arm support according to claim 1, is characterized in that, the top of described stake body (20) is formed with recess (21).
11. suspension arm support according to claim 1, is characterized in that, described stake body (20) comprises two legs (22), and these two legs (22) are fixedly connected with vehicle frame (410) respectively.
12. 1 kinds of construction machinery and equipments, this project machinery comprises arm (200), suspension arm support (100), turntable (300) and chassis (400), described arm (200) is arranged on described turntable (300), described turntable (300) is arranged on described chassis (400), described suspension arm support (100) is fixedly mounted on the vehicle frame (410) of described chassis (400), described arm (200) can be bearing in described suspension arm support (100), it is characterized in that, described suspension arm support (100) is for according to the suspension arm support in claim 1-11 described in any one.
13. 1 kinds of construction machinery and equipments, this project machinery comprises arm (200), suspension arm support (100), turntable (300), chassis (400) and trailer (500), described arm (200) is arranged on described turntable (300), described turntable (300) is arranged on described chassis (400), described suspension arm support (100) is fixedly mounted on described trailer (500), described arm (200) can be bearing in described suspension arm support (100), it is characterized in that, described suspension arm support (100) is for according to the suspension arm support in claim 1-11 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524433.8A CN103010968B (en) | 2012-12-07 | 2012-12-07 | Suspension arm support and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210524433.8A CN103010968B (en) | 2012-12-07 | 2012-12-07 | Suspension arm support and engineering machinery |
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| Publication Number | Publication Date |
|---|---|
| CN103010968A CN103010968A (en) | 2013-04-03 |
| CN103010968B true CN103010968B (en) | 2015-03-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210524433.8A Active CN103010968B (en) | 2012-12-07 | 2012-12-07 | Suspension arm support and engineering machinery |
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| CN (1) | CN103010968B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106966309B (en) * | 2017-05-10 | 2018-07-31 | 中铁工程机械研究设计院有限公司 | A kind of arm of multiple equilibrium elevation angle adjustable shelves locking device and method |
| CN113460240B (en) * | 2021-08-16 | 2022-09-20 | 青岛海西重机有限责任公司 | Protection device for slender structural member in marine transportation process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903695A (en) * | 2006-07-31 | 2007-01-31 | 张琳 | Semitrailer self walking type automobile crane |
| CN201068373Y (en) * | 2007-07-20 | 2008-06-04 | 娄合群 | Whip crane |
| CN201124607Y (en) * | 2007-12-21 | 2008-10-01 | 上海光华印刷机械有限公司 | Drum axial motion control device for plate mangle group type offset press |
-
2012
- 2012-12-07 CN CN201210524433.8A patent/CN103010968B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1903695A (en) * | 2006-07-31 | 2007-01-31 | 张琳 | Semitrailer self walking type automobile crane |
| CN201068373Y (en) * | 2007-07-20 | 2008-06-04 | 娄合群 | Whip crane |
| CN201124607Y (en) * | 2007-12-21 | 2008-10-01 | 上海光华印刷机械有限公司 | Drum axial motion control device for plate mangle group type offset press |
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| CN103010968A (en) | 2013-04-03 |
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