CN103342297A - Sliding type counterweight mounting rack and crane - Google Patents
Sliding type counterweight mounting rack and crane Download PDFInfo
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- CN103342297A CN103342297A CN2013102856661A CN201310285666A CN103342297A CN 103342297 A CN103342297 A CN 103342297A CN 2013102856661 A CN2013102856661 A CN 2013102856661A CN 201310285666 A CN201310285666 A CN 201310285666A CN 103342297 A CN103342297 A CN 103342297A
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- counterbalanced weight
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- sliding type
- slippage
- supporting seat
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Abstract
The invention discloses a sliding type counterweight mounting rack which comprises a supporting seat and a sliding rack, wherein the supporting seat is mounted on a rotating table of a crane; the sliding rack is arranged on the supporting seat in a sliding mode; a mounting part for mounting a counterweight is arranged on the sliding rack. The counterweight can be lighter under equal balance moment, so that the cost and the complete crane weight are reduced; the length of the whole crane can be shorter under equal balance moment, and thus the maneuverability of the whole crane is improved. The lifting stability of the whole crane is improved on the basis that the weight of the counterweight and the length of the whole crane in a running state do not increase. The invention also discloses the crane with the sliding type counterweight mounting rack.
Description
Technical field
The present invention relates to the weight-lifting equipment technical field, more particularly, relate to a kind of sliding type counterbalanced weight erecting frame and hoisting crane.
Background technology
At present, the lifting construction of large and heavy objects arrive in little assembling, dismounting to tiny parts greatly, all needs hoisting crane with these manpowers inconvenience or irremovable weight, is placed to accurately on the position of needs, and hoisting crane has been brought into play enormous function in these work.Hoisting crane passes through the weight of its jib bearing goods, and finishes the movement of goods by the movement mobile at jib or hoisting crane of movement, the goods of jib.
Counterbalanced weight is the important operation part of hoisting crane, and as shown in Figure 1, traditional counterbalanced weight 103 hangs on the afterbody of rotating table 101 by bolt or oil cylinder 102, and balancing torque is a fixed value, and balancing torque refers to the product of counterbalanced weight weight and balance weight arm.As shown in Figure 2, when hoisting heavy 105, the reach of car load center of gravity, weight mainly is distributed on the place ahead supporting leg 104.This moment, rear weight was lighter, by setting the weight of counterbalanced weight 103, tumbled before lifting process vehicle is not understood during design.Significantly under the operating mode, lifting performance is mainly determined by whole vehicle stability for long or crane arm at crane arm.At this moment just require to increase counterbalanced weight weight or increase and move after the counterbalanced weight arm of force makes center of gravity, to increase balancing torque, so then make complete vehicle weight increase, or length increases.
The place operation band motor-driven, flexible and crawler crane that rough terrain wheeled crane has been inherited car hosit carries the advantage of travelling.At present the counterbalanced weight of rough terrain wheeled crane adopts oil cylinder to articulate or the mode of bolt, in order to improve whole vehicle stability, require to increase counterbalanced weight weight or increase and move after the counterbalanced weight arm of force makes center of gravity, increasing balancing torque, the maneuverability theory of this and rough terrain wheeled crane has produced contradiction.If the raising maneuverability, require rough terrain wheeled crane to have less bodywork length and turn radius, this also is unfavorable for whole vehicle stability.
Therefore, how on the basis that does not increase car load length under counterbalanced weight weight and the motoring condition, improve car load lifting stability, become the technical matters that those skilled in the art need to be resolved hurrily.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of sliding type counterbalanced weight erecting frame, with on the basis that does not increase car load length under counterbalanced weight weight and the motoring condition, improve car load lifting stability;
Another object of the present invention is to provide a kind of hoisting crane with above-mentioned sliding type counterbalanced weight erecting frame.
For achieving the above object, the invention provides following technical scheme:
A kind of sliding type counterbalanced weight erecting frame comprises:
Supporting seat is for the rotating table that is mounted to hoisting crane;
The slippage frame, described slippage frame is mounted slidably on described supporting seat, and has on the described slippage frame for the installation portion that counterbalanced weight is installed.
Preferably, in above-mentioned sliding type counterbalanced weight erecting frame, described supporting seat has slideway, and described slippage frame passes described slideway, and with described slideway bearing fit.
Preferably, in above-mentioned sliding type counterbalanced weight erecting frame, the inwall of described slideway is provided with the slide block with the outer wall bearing fit of described slippage frame.
Preferably, in above-mentioned sliding type counterbalanced weight erecting frame, described slideway screw thread fit has jackscrew, and an end and the described slide block of described jackscrew offset.
Preferably, in above-mentioned sliding type counterbalanced weight erecting frame, described supporting seat is a plurality of, and arranges at interval along the length direction of described slippage frame.
Preferably, in above-mentioned sliding type counterbalanced weight erecting frame, described installation portion comprises:
Be arranged at the mount pad on the described slippage frame;
Be arranged at the vertical oil cylinder on the described mount pad, the piston rod of described vertical oil cylinder is used for linking to each other with described counterbalanced weight.
Preferably, in above-mentioned sliding type counterbalanced weight erecting frame, described slippage frame is two that are arranged in parallel, and two described slippage framves link to each other by link span.
A kind of hoisting crane comprises rotating table and counterbalanced weight, also comprises as above each described sliding type counterbalanced weight erecting frame;
Described supporting seat is arranged on the described rotating table;
Described counterbalanced weight is installed on the described installation portion.
Preferably, in above-mentioned hoisting crane, comprise that also an end is arranged on the described rotating table, the cross cylinder that the other end links to each other with described slippage frame.
Preferably, in above-mentioned hoisting crane, described slippage frame has the hiding hole that distributes along its length direction;
The piston rod of described cross cylinder stretches in the described hiding hole, and hinged with described slippage frame, and the cylinder body of described cross cylinder and described rotating table are hinged.
From above-mentioned technical scheme as can be seen, sliding type counterbalanced weight erecting frame provided by the invention, changed the heavy mounting means of conventional balanced, be not directly counterbalanced weight to be mounted on the rotating table, but be mounted on the rotating table by sliding type counterbalanced weight erecting frame provided by the invention.Sliding type counterbalanced weight erecting frame is mounted on the rotating table by its supporting seat, counterbalanced weight is mounted on the installation portion of slippage frame, and the slippage frame can slide along supporting seat, therefore can drive the counterbalanced weight reach and after move.When the crane loading operation, need bigger balancing torque, can be by the slip of slippage frame, it is mobile backward to drive counterbalanced weight, moves after the counterbalanced weight arm of force makes center of gravity to increase, and improves whole vehicle stability.When motoring condition, can drive counterbalanced weight and move forward by the slip of slippage frame, make the center of gravity reach to shorten the counterbalanced weight arm of force, improve maneuverability.
The present invention can make counterbalanced weight lighter under the situation of equal balancing torque, and cost-cutting reduces complete vehicle weight; Under the situation of equal balancing torque, make that car load length is shorter, improve the maneuverability of car load.The present invention can improve car load lifting stability on the basis that does not increase car load length under counterbalanced weight weight and the motoring condition.
The invention also discloses a kind of hoisting crane, because sliding type counterbalanced weight erecting frame provided by the invention has above-mentioned technique effect, the hoisting crane that therefore has this sliding type counterbalanced weight erecting frame has above-mentioned technique effect equally, and this paper repeats no more.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the mounting structure scheme drawing of counterbalanced weight in the prior art;
Fig. 2 is the structural representation of hoisting crane in the prior art;
The mounting structure scheme drawing of the slippage frame that Fig. 3 provides for the embodiment of the invention;
The structural representation of the slippage frame that counterbalanced weight is installed that Fig. 4 provides for the embodiment of the invention;
The structural representation of the slippage frame retracted state that Fig. 5 provides for the embodiment of the invention;
The slippage frame that Fig. 6 provides for the embodiment of the invention stretches out the structural representation of state;
The front elevation of the slippage frame retracted state that Fig. 7 provides for the embodiment of the invention;
The slippage frame that Fig. 8 provides for the embodiment of the invention stretches out the front elevation of state;
Fig. 9 is that Fig. 8 is along the cutaway view of A-A line.
Wherein:
101 is rotating table, and 102 is oil cylinder, and 103 is counterbalanced weight, and 104 is supporting leg, and 105 is weight;
201 is rotating table, and 202 is supporting seat, and 203 are the slippage frame, and 204 is vertical oil cylinder, and 205 is cross cylinder, and 206 is counterbalanced weight, and 207 is slide block, and 208 is mount pad, and 209 is link span.
The specific embodiment
Core of the present invention is to provide a kind of sliding type counterbalanced weight erecting frame, with on the basis that does not increase car load length under counterbalanced weight weight and the motoring condition, improves car load lifting stability;
Another core of the present invention is to provide a kind of hoisting crane with above-mentioned sliding type counterbalanced weight erecting frame.
Below in conjunction with the accompanying drawing in the embodiment of the invention, the technical scheme in the embodiment of the invention is clearly and completely described, obviously, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that obtains under the creative work prerequisite.
See also Fig. 3 and Fig. 4, the mounting structure scheme drawing of the slippage frame that Fig. 3 provides for the embodiment of the invention; The structural representation of the slippage frame that counterbalanced weight is installed that Fig. 4 provides for the embodiment of the invention.
The sliding type counterbalanced weight erecting frame that the embodiment of the invention provides comprises supporting seat 202 and slippage frame 203.
Supporting seat 202 is used for being mounted to the rotating table 201 of hoisting crane, and particularly, supporting seat 202 can directly be soldered on the rotating table 201, also can be mounted on the rotating table 202 by attaching parts (as bolt, screw, rivet etc.).
If supporting seat 202 directly is welded on the rotating table 201, then have higher intensity, can provide more stable support for slippage frame 203.If supporting seat 202 is mounted on the rotating table 202 by attaching parts, can after supporting seat 202 wearing and tearing, can change easily, be convenient to safeguard.
It will be appreciated by persons skilled in the art that supporting seat 202 except above-mentioned two kinds of mounting meanss, also can be made of one the formula structure with rotating table 201, the present invention does not do restriction to the mounting means of supporting seat 202.
Sliding type counterbalanced weight erecting frame provided by the invention has changed the heavy mounting means of conventional balanced, is not directly counterbalanced weight 206 to be mounted on the rotating table 201, but is mounted on the rotating table 201 by sliding type counterbalanced weight erecting frame provided by the invention.Sliding type counterbalanced weight erecting frame is mounted on the rotating table 201 by its supporting seat 202, counterbalanced weight 206 is mounted on the installation portion of slippage frame 203, and slippage frame 203 can slide along supporting seat 202, therefore can drive counterbalanced weight 206 reaches and after move.
See also Fig. 5, the structural representation of the slippage frame retracted state that Fig. 5 provides for the embodiment of the invention.
When the hoisting crane motoring condition, can drive counterbalanced weight 206 and move forward by the slip of slippage frame 203, make the center of gravity reach to shorten the counterbalanced weight arm of force, improve the maneuverability of hoisting crane.As shown in Figure 7, when the hoisting crane motoring condition, the counterbalanced weight arm of force is L.
See also Fig. 6, the slippage frame that Fig. 6 provides for the embodiment of the invention stretches out the structural representation of state.
When the crane loading operation, need bigger balancing torque, can be by the slip of slippage frame, it is mobile backward to drive counterbalanced weight 206, moves after the counterbalanced weight arm of force makes center of gravity to increase, and improves whole vehicle stability.As shown in Figure 8, when the crane loading operation, the counterbalanced weight arm of force is L+X, and wherein X is the distance that counterbalanced weight moves.
The present invention can make counterbalanced weight lighter under the situation of equal balancing torque, and cost-cutting reduces complete vehicle weight; Under the situation of equal balancing torque, make that car load length is shorter, improve the maneuverability of car load.The present invention can improve car load lifting stability on the basis that does not increase car load length under counterbalanced weight weight and the motoring condition.
In order to prevent slippage frame 203 in moving process, by coming off on the supporting seat 202, in the present invention's one specific embodiment, supporting seat 202 has slideway, and slippage frame 203 passes slideway, and with the slideway bearing fit.Counterbalanced weight 206 is mounted to an end of slippage frame 203, slippage frame 203 is applied with moment of flexure, make slippage frame 203 have the trend of upset, the present invention is by passing slideway with counterbalanced weight 206, the top of slideway has position-limiting action to the upset of slippage frame 203, can prevent slippage frame 203 under the effect of counterbalanced weight 206, by coming off on the supporting seat 202.
It will be appreciated by persons skilled in the art that and at supporting seat 202 slideway to be set, also supporting seat 202 can be designed to the structure of slideway.Except the cooperating of slideway and slippage frame 203, also can adopt the mode of non-slideway, for example can be dovetail furrow with supporting seat 202 and the matching design of slippage frame 203 and the cooperating of dovetail slide rail, can overcome the inverting action of counterbalanced weight moment of flexure equally.
See also Fig. 9, Fig. 9 is that Fig. 8 is along the cutaway view of A-A line.
Rocking when sliding in slideway for fear of slippage frame 203, in the present invention's one specific embodiment, the inwall of slideway is provided with the slide block 207 with the outer wall bearing fit of slippage frame 203.Slide block 207 is used for being close to slippage frame 203, has the gap between the outer wall with the inwall of avoiding slideway and slippage frame 203 and shakes.Slide block 207 can be selected high-abrasive material for use, and the little material manufacturing of friction coefficient.
In order further to optimize technique scheme, slideway screw thread fit of the present invention has jackscrew, and an end and the slide block 207 of jackscrew offset.Be to offer the tapped bore that connects this sidewall on one of them sidewall of slideway, jackscrew cooperates with this tapped bore, and props up slide block 207, makes slide block 207 be close to the outer wall of slippage frame 203.
It will be appreciated by persons skilled in the art that jackscrew should be corresponding with the position of slide block 207.If a slideway is to there being three slide blocks 207, the top, bottom and one of them side that are slippage frame 203 all are furnished with slide block 207, jackscrew also will be relatively installed in top, bottom and one of them side of slideway so, with the slide block of the top, bottom and one of them side that prop up slippage frame 203 respectively.
At a slide block 207 jackscrew can be set, can design a plurality of jackscrews yet, the present invention does not do restriction.When a plurality of jackscrew is set, should a plurality of jackscrews be evenly arranged as far as possible, and will guarantee that the screw-in amount of a plurality of jackscrews is identical as far as possible.
In the present invention's one specific embodiment, supporting seat 202 is a plurality of, and arranges at interval along the length direction of slippage frame 203.As previously mentioned, if the long enough of supporting seat 202 designs can provide enough bearing forces for slippage frame 203, a supporting seat 202 can be set also.
As shown in Figure 2, in the present invention's one specific embodiment, installation portion comprises mount pad 208 and vertical oil cylinder 204.
Wherein, mount pad 208 is arranged on the slippage frame 203, is used to vertical oil cylinder 204 to provide the basis is installed.Particularly, mount pad 208 can directly be soldered on the slippage frame 203, also can be mounted on the slippage frame 203 by attaching parts (as bolt, screw, rivet etc.).
If mount pad 208 directly is welded on the slippage frame 203, then have higher intensity, can provide more stable support for vertical oil cylinder 204.If mount pad 208 is mounted on the slippage frame 203 by attaching parts, can after mount pad 208 wearing and tearing, can change easily, be convenient to safeguard.
It will be appreciated by persons skilled in the art that mount pad 208 except above-mentioned two kinds of mounting meanss, also can be made of one the formula structure with slippage frame 203, the present invention does not do restriction to the mounting means of mount pad 208.
In order to guarantee the more stable support of counterbalanced weight 206, slippage frame 203 is two of being arranged in parallel, and two slippage framves 203 link to each other by link span 209.It will be appreciated by persons skilled in the art that when slippage frame 203 is two correspondingly, supporting seat 202 is two covers that cooperate with two slippage framves 203 respectively; In like manner, vertical oil cylinder 204 also is two.The present invention can provide more stable support for counterbalanced weight by two slippage framves 203 are set, and two vertical oil cylinders 204 should be connected with counterbalanced weight 206 symmetrically, with the problem of avoiding one of them slippage frame 203 that counterbalanced weight 206 arranged off-centre cause to damage.
The hoisting crane that the embodiment of the invention provides comprises rotating table 201 and counterbalanced weight 206, and of the present invention focusing on also comprises the as above disclosed sliding type counterbalanced weight of embodiment erecting frame.
Wherein, supporting seat 202 is arranged on the rotating table 201, and counterbalanced weight 206 is installed on the installation portion.
Therefore the hoisting crane that the embodiment of the invention provides has all technique effects of sliding type counterbalanced weight erecting frame concurrently owing to have above-mentioned sliding type counterbalanced weight erecting frame, and this paper does not repeat them here.
Because the weight of counterbalanced weight 206 is generally bigger, make that therefore the movement of slippage frame 203 is comparatively difficult.Based on this, the present invention can comprise that also an end is arranged on the rotating table 201, the cross cylinder 205 that the other end links to each other with slippage frame 203.When the mobile slippage of needs frame 203, can drive cross cylinder 205, make the piston rod of cross cylinder 205 stretch out or withdraw, spur slippage frame 203 and slide along supporting seat 202.
For the tractive force that guarantees cross cylinder 205 consistent with the direction of slip of slippage frame 203, piston rod that should cross cylinder 205 axially consistent with the direction of slip of slippage frame 203.
In the present invention's one specific embodiment, slippage frame 203 has the hiding hole that distributes along its length direction, also slippage frame 203 can be designed to a hollow tube, and then the centre hole of this hollow tube was just for hiding the hole.
The piston rod of cross cylinder 205 stretches into to be hidden in the hole, and hinged with slippage frame 203, and the cylinder body of cross cylinder 205 and rotating table 201 are hinged.Can make that like this counterbalanced weight arm of force is shorter when the hoisting crane motoring condition, the counterbalanced weight migration.Accordingly, slippage frame 203 can move to first end position (this first end position is the most forward position of slippage frame 203), because stretching into, hides in the hole in piston rod, so when piston rod is withdrawn, whole cross cylinder 205 can stretch into to be hidden in the hole, the length that is cross cylinder 205 can not cause interference to the movement of slippage frame 203, under the prerequisite that guarantees slippage, can not increase the length of vehicle body like this.
It will be understood by those skilled in the art that, the piston rod of cross cylinder 205 also can link to each other with the end of slippage frame 203, can realize goal of the invention equally, but under the prerequisite of identical slippage, bodywork length increases the length of a cross cylinder 205 than the bodywork length in above-described embodiment.
Each embodiment adopts the mode of going forward one by one to describe in this specification sheets, and what each embodiment stressed is and the difference of other embodiment that identical similar part is mutually referring to getting final product between each embodiment.
To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the present invention.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from the spirit or scope of the present invention in other embodiments herein.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a sliding type counterbalanced weight erecting frame is characterized in that, comprising:
Supporting seat (202) is for the rotating table (201) that is mounted to hoisting crane;
Slippage frame (203), described slippage frame (203) is mounted slidably on described supporting seat (202), and has on the described slippage frame (203) for the installation portion that counterbalanced weight (206) is installed.
2. sliding type counterbalanced weight erecting frame as claimed in claim 1 is characterized in that, described supporting seat (202) has slideway, and described slippage frame (203) passes described slideway, and with described slideway bearing fit.
3. sliding type counterbalanced weight erecting frame as claimed in claim 2 is characterized in that, the inwall of described slideway is provided with the slide block (207) with the outer wall bearing fit of described slippage frame (203).
4. sliding type counterbalanced weight erecting frame as claimed in claim 3 is characterized in that, described slideway screw thread fit has jackscrew, and an end of described jackscrew and described slide block (207) offset.
5. sliding type counterbalanced weight erecting frame as claimed in claim 1 is characterized in that, described supporting seat (202) is a plurality of, and arranges at interval along the length direction of described slippage frame (203).
6. as each described sliding type counterbalanced weight erecting frame of claim 1-5, it is characterized in that described installation portion comprises:
Be arranged at the mount pad (208) on the described slippage frame (203);
Be arranged at the vertical oil cylinder (204) on the described mount pad (208), the piston rod of described vertical oil cylinder (204) is used for linking to each other with described counterbalanced weight (206).
7. sliding type counterbalanced weight erecting frame as claimed in claim 6 is characterized in that, described slippage frame (203) is two that are arranged in parallel, and two described slippage framves (203) link to each other by link span (209).
8. a hoisting crane comprises rotating table (201) and counterbalanced weight (206), it is characterized in that, also comprises each described sliding type counterbalanced weight erecting frame as claim 1-7;
Described supporting seat (202) is arranged on the described rotating table (201);
Described counterbalanced weight (206) is installed on the described installation portion.
9. hoisting crane as claimed in claim 8 is characterized in that, comprises that also an end is arranged on the described rotating table (201), the cross cylinder (205) that the other end links to each other with described slippage frame (203).
10. hoisting crane as claimed in claim 9 is characterized in that, described slippage frame (203) has the hiding hole that distributes along its length direction;
The piston rod of described cross cylinder (205) stretches in the described hiding hole, and hinged with described slippage frame (203), and the cylinder body of described cross cylinder (205) and described rotating table (201) are hinged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310285666.1A CN103342297B (en) | 2013-07-08 | 2013-07-08 | A kind of slidingtype balance weight installing rack and crane |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310285666.1A CN103342297B (en) | 2013-07-08 | 2013-07-08 | A kind of slidingtype balance weight installing rack and crane |
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| Publication Number | Publication Date |
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| CN103342297A true CN103342297A (en) | 2013-10-09 |
| CN103342297B CN103342297B (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310285666.1A Active CN103342297B (en) | 2013-07-08 | 2013-07-08 | A kind of slidingtype balance weight installing rack and crane |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565183A (en) * | 2014-10-31 | 2016-05-11 | 利勃海尔工厂埃英根有限公司 | Mobile crane with ballast receiving device |
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| EP0669280A1 (en) * | 1994-02-23 | 1995-08-30 | Kidde Industries Inc. | Lifting arrangement for detachable counterweight |
| JP2005138962A (en) * | 2003-11-07 | 2005-06-02 | Mitsubishi Heavy Ind Ltd | Load handling vehicle |
| CN201284198Y (en) * | 2008-08-21 | 2009-08-05 | 徐州徐工随车起重机有限公司 | Built-in telescopic counterweight mechanism of lorry-mounted crane |
| CN101624165A (en) * | 2008-07-07 | 2010-01-13 | 徐州重型机械有限公司 | Combined counterweight device and crane using same |
| CN201713238U (en) * | 2010-07-08 | 2011-01-19 | 徐州重型机械有限公司 | Engineering vehicle and arm-frame adjusting device thereof |
| CN202936119U (en) * | 2012-11-26 | 2013-05-15 | 徐州徐工随车起重机有限公司 | Counterweight mechanism and crane |
| CN203382409U (en) * | 2013-07-08 | 2014-01-08 | 徐州重型机械有限公司 | Sliding type counterweight mounting rack and crane |
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2013
- 2013-07-08 CN CN201310285666.1A patent/CN103342297B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0669280A1 (en) * | 1994-02-23 | 1995-08-30 | Kidde Industries Inc. | Lifting arrangement for detachable counterweight |
| JP2005138962A (en) * | 2003-11-07 | 2005-06-02 | Mitsubishi Heavy Ind Ltd | Load handling vehicle |
| CN101624165A (en) * | 2008-07-07 | 2010-01-13 | 徐州重型机械有限公司 | Combined counterweight device and crane using same |
| CN201284198Y (en) * | 2008-08-21 | 2009-08-05 | 徐州徐工随车起重机有限公司 | Built-in telescopic counterweight mechanism of lorry-mounted crane |
| CN201713238U (en) * | 2010-07-08 | 2011-01-19 | 徐州重型机械有限公司 | Engineering vehicle and arm-frame adjusting device thereof |
| CN202936119U (en) * | 2012-11-26 | 2013-05-15 | 徐州徐工随车起重机有限公司 | Counterweight mechanism and crane |
| CN203382409U (en) * | 2013-07-08 | 2014-01-08 | 徐州重型机械有限公司 | Sliding type counterweight mounting rack and crane |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105565183A (en) * | 2014-10-31 | 2016-05-11 | 利勃海尔工厂埃英根有限公司 | Mobile crane with ballast receiving device |
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| CN103342297B (en) | 2016-07-06 |
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