CN102583176A - Mobile counterweight mechanism for engineering machine - Google Patents
Mobile counterweight mechanism for engineering machine Download PDFInfo
- Publication number
- CN102583176A CN102583176A CN2012100617093A CN201210061709A CN102583176A CN 102583176 A CN102583176 A CN 102583176A CN 2012100617093 A CN2012100617093 A CN 2012100617093A CN 201210061709 A CN201210061709 A CN 201210061709A CN 102583176 A CN102583176 A CN 102583176A
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- clump weight
- construction machinery
- connecting panel
- balance weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Cage And Drive Apparatuses For Elevators (AREA)
Abstract
The invention provides a mobile counterweight mechanism for an engineering machine. The engineering machine comprises a counterweight block, a rotary table base body and a winding housing fixedly connected to the rotary table base body; the mobile counterweight mechanism comprises a force transferring part, a position-changing oil cylinder and locking devices, wherein two ends of the force transferring part are respectively connected with the winding housing and the counterweight block; one end of the position-changing oil cylinder is connected with the rotary table base body and/or the winding housing, and the other end of the position-changing oil cylinder is connected with the counterweight block; and after the counterweight block moves to a target position along with the force transferring part and the position-changing oil cylinder, the locking devices can be connected with connecting plates arranged on the counterweight block so as to lock the counterweight block. Through the technical scheme of the invention, the mobile counterweight mechanism can be fixed before and after the counterweight block is moved so that the stability of the mobile counterweight mechanism is improved, and the service life of a finished automobile is prolonged.
Description
Technical field
The present invention relates to technical field of engineering machinery, in particular to a kind of portable balance weight mechanism that is used for construction machinery and equipment.
Background technology
Car hosit is used increasingly extensive in construction machinery and equipment; Car hosit mainly is to improve the car load lifting performance through changing the complete vehicle weight center; Mainly be to improve the car load lifting performance at present, prevent to topple through increasing fixed type counterweight and counterweight move mode.
But there is following shortcoming in swinging gear in the portable mechanism of the counterweight that exists at present:
1) it is bigger to hang when carrying revolution car load rolling momentum before and after the counterweight swing, and whole vehicle stability is low;
2) hang horizontal thrust cylinder force when carrying before and after the counterweight swing, influence the oil cylinder life-span;
3) hinge on the counterweight bearing is stressed bigger, and the weld seam fatiguability damages.
Therefore, need a kind of new portable counterweight field engineering that is used for construction machinery and equipment, can before and after self-balanced upper rotary, fix, to increase stability and integeral vehicle life to it.
Summary of the invention
The present invention just is being based on the problems referred to above, has proposed a kind of new portable counterweight field engineering that is used for construction machinery and equipment, can before and after self-balanced upper rotary, fix it, to increase stability and integeral vehicle life.
In view of this; The present invention proposes a kind of portable balance weight mechanism that is used for construction machinery and equipment; Said construction machinery and equipment comprises clump weight, turntable pedestal and the elevator case that is fixedly connected on said turntable pedestal; Said portable balance weight mechanism comprises: force transmission element, displacement oil cylinder, the two ends of said force transmission element link to each other with said clump weight with said elevator case respectively; One end of said displacement oil cylinder links to each other with said turntable pedestal and/or said elevator case, and the other end links to each other with said clump weight; Said portable balance weight mechanism also comprises: latching device; Said latching device is after said clump weight moves to the target location with said force transmission element and said displacement oil cylinder; Can be connected with the connecting panel on being arranged on said clump weight, to lock said clump weight.
In this technical scheme, through locking, thereby reduced the stressed of displacement oil cylinder, force transmission element etc. to clump weight, help controlling the rolling momentum of car load simultaneously, thereby promote car load lifting performance, stability and reliability.The target location can be the initial position of clump weight; Or the final position after the displacement oil cylinder promotes; But these two positions are all fixed, and therefore, the relative position relation between latching device and the clump weight is also fixed; Thereby can on clump weight, connecting panel be set the position corresponding to latching device, with the locking clump weight.
In technique scheme, preferably, said latching device specifically comprises: plugging pin oil cylinder, latch, induction installation and controller, and wherein, said plugging pin oil cylinder is fixedly connected on the said elevator case; Said latch is connected with the piston rod of said plugging pin oil cylinder; Said induction installation is arranged on said plugging pin oil cylinder and/or the said latch, is used for the axis direction of said latch is responded to, and when sensing said connecting panel, generates induced signal; And said controller is connected to said plugging pin oil cylinder and said induction installation, is used for receiving under the situation of said induced signal, controls said plugging pin oil cylinder and promotes said latch and insert the pin-and-hole on the said connecting panel.
In this technical scheme, there are corresponding position in elevator case and clump weight, therefore can latching device be arranged on the elevator case.Through latch being inserted the pin-and-hole on the connecting panel, with locking, fixed weight piece.
In technique scheme, preferably, said connecting panel is a plurality of, and each said connecting panel can align said pin-and-hole after said clump weight moves to the target location with said latch.In this technical scheme, a plurality of connecting panels are set on clump weight, one corresponding to final position corresponding to initial position such as one, thereby after configuration block moves to any target location, all can be locked.
In technique scheme, preferably, said latching device is a plurality of, and a plurality of said latching devices are along the axis of symmetry setting of said elevator case, and each said latching device is all to there being at least one said connecting panel to be connected in said target location with it.In this technical scheme, when each target location, use a plurality of latching devices, such as symmetrically arranged two latching devices, clump weight is locked, to guarantee to lock fully clump weight.Certainly, better for locking effect, obviously can also use more latching device.
In technique scheme, preferably, said induction installation comprises: distance measuring equipment (DME), said distance measuring equipment (DME) is used for the emitting detection signal, and receives cooresponding feedback signal.
In technique scheme, preferably, said distance measuring equipment (DME) emitting detection signal; And said controller is used for judging whether the range data that said feedback signal comprises is complementary with the predeterminable range data, thereby judges whether said clump weight arrives the target location.
In this technical scheme, induction installation and latch are positioned on the same axis, when clump weight arrives the target location; The detection signal that can send out distance measuring equipment (DME) reflects; Thereby the feedback signal of receiving, and confirm that thus clump weight has arrived the target location, and latch aligns with pin-and-hole.Perhaps; Distance measuring equipment (DME) also possibly can receive feedback signal always, such as being the distance that records in real time, so; When connecting panel is positioned at distance measuring equipment (DME) the place ahead; The cooresponding distance of feedback signal is the distance between distance measuring equipment (DME) and the connecting panel, and this distance that obviously before records with it is different fully, can be in order to two kinds of situation are distinguished significantly.
In technique scheme, preferably, said distance measuring equipment (DME) comprise following one of at least or its combination: ultrasonic range finder, laser rangefinder and infrared range-measurement system.
In technique scheme, preferably, said distance measuring equipment (DME) comprises: near switch.In this technical scheme, can judge detected distance near switch self, and not need other judgment means, be more preferably to install.
In technique scheme, preferably, said force transmission element and said displacement oil cylinder are respectively welded to the clump weight that said connecting panel is installed.In this technical scheme, the mode through welding makes this clump weight to be unloaded, but can be installed on the construction machinery and equipment always, when needing to add other clump weights, is connected to this clump weight below again, realizes weightening finish.
In technique scheme, preferably, said construction machinery and equipment is a hoisting crane.
Through above technical scheme, can before and after self-balanced upper rotary, fix, to increase stability and integeral vehicle life to it.
Description of drawings
Fig. 1 shows the front view of the portable balance weight mechanism (clump weight is in initial position) that is used for construction machinery and equipment according to an embodiment of the invention;
Fig. 2 is the birds-eye view of Fig. 1;
Structural representation when Fig. 3 is in end position for the clump weight of the portable balance weight mechanism that is used for construction machinery and equipment shown in Fig. 1;
Fig. 4 is the birds-eye view of Fig. 3.
The specific embodiment
In order more to be expressly understood above-mentioned purpose of the present invention, feature and advantage, the present invention is further described in detail below in conjunction with the accompanying drawing and the specific embodiment.
Set forth a lot of details in the following description so that make much of the present invention, still, the present invention can also adopt other to be different from other modes described here and implement, and therefore, the present invention is not limited to the restriction of following disclosed specific embodiment.
Below in conjunction with Fig. 1 to Fig. 4 a kind of portable balance weight mechanism that is used for construction machinery and equipment of embodiments of the invention is elaborated.
As shown in the figure, construction machinery and equipment comprises clump weight 4, turntable pedestal 9 and the elevator case 10 that is fixedly connected on turntable pedestal 9, and portable balance weight mechanism comprises: force transmission element 2, displacement oil cylinder 1, the two ends of force transmission element 2 link to each other with clump weight 4 with elevator case 10 respectively; One end of displacement oil cylinder 1 links to each other with turntable pedestal 9 and/or elevator case 10, and the other end links to each other with clump weight 4; Portable balance weight mechanism also comprises: latching device 102; This latching device 102 is after clump weight 4 moves to the target location with force transmission element 2 and displacement oil cylinder 1; Can be connected with connecting panel 51 and/or the connecting panel 52 on being arranged on clump weight 4, with locking clump weight 4.
In this technical scheme; The target location of clump weight 4 comprises initial position and end position; Wherein, initial position is meant the position (like Fig. 1, shown in Figure 2) of clump weight 4 when displacement oil cylinder 1 is withdrawn fully, when end position is meant displacement oil cylinder 1 full extension the position of clump weight 4 (like Fig. 3, shown in Figure 4); Through clump weight 4 is moved between initial position and end position, thereby make the center of gravity of engineering mechanical device is regulated.
In technique scheme, latching device 102 can comprise: plugging pin oil cylinder 8, latch 7, induction installation 6 and controller (not shown), and wherein, plugging pin oil cylinder 8 is fixedly connected on the elevator case 10; Latch 7 is connected with the piston rod of plugging pin oil cylinder 8; Induction installation 6 is arranged on plugging pin oil cylinder 8 and/or the latch 7, is used for the axis direction of latch 7 is responded to, and when sensing connecting panel 51 or connecting panel 52, generates induced signal; And controller is connected to plugging pin oil cylinder 8 and induction installation 6, is used for receiving under the situation of induced signal, and control plugging pin oil cylinder 8 promotes the pin-and-hole that latches 7 insert on connecting panels 51 or the connecting panel 52.
In this technical scheme, there is corresponding position in elevator case 10 with clump weight 4, therefore can latching device 102 be arranged on the elevator case 10.Through the pin-and-hole that latch 7 is inserted on connecting panel 51 or the connecting panel 52, with locking, fixed weight piece 4.Particularly, after clump weight 4 moved to initial position, connecting panel 51 alignd with catch gear 102, behind the pin-and-hole that latch 7 is inserted on the connecting panel 51, fixed clump weight 4; After clump weight 4 moved to end position, connecting panel 52 alignd with catch gear 102, behind the pin-and-hole that latch 7 is inserted on the connecting panel 52, fixed clump weight 4.
In technique scheme, connecting panel 5 is a plurality of, and each connecting panel can align pin-and-hole after clump weight 4 moves to the target location with latch.In this technical scheme; A plurality of connecting panels are set on clump weight 4, and when being positioned at initial position such as clump weight 4, latching device 102 is corresponding to the connecting panel 51 among the figure; When clump weight 4 is positioned at end position; Latching device 102 corresponding to figure in connecting panel 52, thereby after configuration block 4 moves to any target location, all can be locked.
In technique scheme, latching device 102 is a plurality of, and a plurality of latching devices 102 are along the axis of symmetry setting of elevator case 10, and each latching device 102 is all to there being at least one connecting panel 5 to be connected in the target location with it.In this technical scheme, when each target location, use a plurality of latching devices 102; Such as symmetrically arranged two latching devices 102; Clump weight 4 is locked, to guarantee locking clump weight 4 fully, at this moment; Need at least 4 connecting panels be set on clump weight 4, two other connecting panel that comprises connecting panel 51, connecting panel 52 and be symmetrical in the axis of symmetry setting of elevator case 10 respectively.Certainly, better for locking effect, obviously can also use more latching device 102.
In technique scheme, induction installation 6 can comprise: distance measuring equipment (DME), this distance measuring equipment (DME) is used for the emitting detection signal, and receives cooresponding feedback signal.
In technique scheme, distance measuring equipment (DME) emitting detection signal; And controller is used for judging whether the range data that feedback signal comprises is complementary with the predeterminable range data, thereby judges whether clump weight 4 arrives the target location.
In this technical scheme; Induction installation 6 is positioned on the same axis with latch 7; When clump weight 4 arrival target locations, can the detection signal that distance measuring equipment (DME) sends out be reflected, thus the feedback signal of receiving; And confirm that thus clump weight 4 has arrived the target location, and latch 7 aligns with pin-and-hole on connecting panel 51 or the connecting panel 52.Perhaps; Distance measuring equipment (DME) also possibly can receive feedback signal always, such as being the distance that records in real time, so; When connecting panel 51 or connecting panel 52 are positioned at distance measuring equipment (DME) the place ahead; The cooresponding distance of feedback signal is the distance between distance measuring equipment (DME) and connecting panel 51 or the connecting panel 52, and this distance that obviously before records with it is different fully, can be in order to two kinds of situation are distinguished significantly.Certainly; The concrete installation site of induction installation 6 is not limited on the latching device 102, also can be installed in elsewhere, on elevator case 10; Only need be behind clump weight 4 arrival target locations, can whether align to connecting panel 5 and judge and get final product with latching device 102.
In technique scheme, distance measuring equipment (DME) comprise following one of at least or its combination: ultrasonic range finder, laser rangefinder and infrared range-measurement system.
In technique scheme, distance measuring equipment (DME) comprises: near switch.In this technical scheme, can judge detected distance near switch self, and not need other judgment means, be more preferably to install.
In technique scheme, force transmission element 2 is respectively welded to the clump weight 4 that connecting panel 51 and connecting panel 52 are installed with displacement oil cylinder 1.In this technical scheme, the mode through welding makes that this clump weight 4 need not be unloaded, but can be installed on the construction machinery and equipment always, when needing to add other clump weights, is connected to this clump weight 4 belows again, realizes weightening finish.
In technique scheme, this project machinery is hoisting crane.Certainly, the Other Engineering mechanical equipment for adopting or can adopt similar clump weight mechanism obviously can adopt technical scheme of the present invention.
More than be described with reference to the accompanying drawings technical scheme of the present invention; Consider in the correlation technique; Whole vehicle stability is low, and shortcomings such as weld seam fatiguability damage the invention provides a kind of portable balance weight mechanism that is used for construction machinery and equipment; Can before and after self-balanced upper rotary, fix, to increase stability and integeral vehicle life it.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. portable balance weight mechanism that is used for construction machinery and equipment; Said construction machinery and equipment comprises clump weight (4), turntable pedestal (9) and the elevator case (10) that is fixedly connected on said turntable pedestal (9); Said portable balance weight mechanism comprises: force transmission element (2), displacement oil cylinder (1); The two ends of said force transmission element (2) link to each other with said clump weight (4) with said elevator case (10) respectively, and an end of said displacement oil cylinder (1) links to each other with said turntable pedestal (9) and/or said elevator case (10), and the other end links to each other with said clump weight (4); It is characterized in that said portable balance weight mechanism also comprises:
Latching device (102); Said latching device (102) is after said clump weight (4) moves to the target location with said force transmission element (2) and said displacement oil cylinder (1); Can be connected with the connecting panel (5) on being arranged on said clump weight (4), to lock said clump weight (4).
2. the portable balance weight mechanism that is used for construction machinery and equipment according to claim 1 is characterized in that, said latching device (102) specifically comprises: plugging pin oil cylinder (8), latch (7), induction installation (6) and controller, wherein,
Said plugging pin oil cylinder (8) is fixedly connected on the said elevator case (10);
Said latch (7) is connected with the piston rod of said plugging pin oil cylinder (8);
Said induction installation (6) is arranged on said plugging pin oil cylinder (8) and/or the said latch (7), is used for the axis direction of said latch (7) is responded to, and when sensing said connecting panel (5), generates induced signal; And
Said controller is used for receiving under the situation of said induced signal, controls said plugging pin oil cylinder (8) and promotes said latch (7) and insert the pin-and-hole on the said connecting panel (5).
3. the portable balance weight mechanism that is used for construction machinery and equipment according to claim 2; It is characterized in that; Said connecting panel (5) is a plurality of, and each said connecting panel (5) can align said pin-and-hole after said clump weight (4) move to the target location with said latch (7).
4. the portable balance weight mechanism that is used for construction machinery and equipment according to claim 3; It is characterized in that; Said latching device (102) is a plurality of; A plurality of said latching devices (102) are along the axis of symmetry setting of said elevator case (10), and each said latching device (102) is all to there being at least one said connecting panel (5) to be connected in said target location with it.
5. the portable balance weight mechanism that is used for construction machinery and equipment according to claim 2 is characterized in that, said induction installation (6) comprising: distance measuring equipment (DME), said distance measuring equipment (DME) is used for the emitting detection signal, and receives cooresponding feedback signal.
6. the portable balance weight mechanism that is used for construction machinery and equipment according to claim 5 is characterized in that, said distance measuring equipment (DME) emitting detection signal; And
Said controller is used for judging whether the range data that said feedback signal comprises is complementary with the predeterminable range data, thereby judges whether said clump weight (4) arrives the target location.
7. the portable balance weight mechanism that is used for construction machinery and equipment according to claim 5 is characterized in that, said distance measuring equipment (DME) comprise following one of at least or its combination: ultrasonic range finder, laser rangefinder and infrared range-measurement system.
8. the portable balance weight mechanism that is used for construction machinery and equipment according to claim 5 is characterized in that said distance measuring equipment (DME) comprises: near switch.
9. the portable balance weight mechanism that is used for construction machinery and equipment according to claim 1 is characterized in that, said force transmission element (2) and said displacement oil cylinder (1) are respectively welded to the clump weight (4) that said connecting panel (5) are installed.
10. the portable counter weight construction that is used for construction machinery and equipment according to claim 1 is characterized in that said construction machinery and equipment is a hoisting crane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061709.3A CN102583176B (en) | 2012-03-09 | 2012-03-09 | Mobile counterweight mechanism for engineering machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210061709.3A CN102583176B (en) | 2012-03-09 | 2012-03-09 | Mobile counterweight mechanism for engineering machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102583176A true CN102583176A (en) | 2012-07-18 |
| CN102583176B CN102583176B (en) | 2014-03-19 |
Family
ID=46472548
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210061709.3A Active CN102583176B (en) | 2012-03-09 | 2012-03-09 | Mobile counterweight mechanism for engineering machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102583176B (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010308A (en) * | 2012-12-27 | 2013-04-03 | 徐州重型机械有限公司 | Crane and split type frame structure thereof |
| CN104210968A (en) * | 2014-08-06 | 2014-12-17 | 徐州重型机械有限公司 | Counterweight slipping control method and system |
| WO2016119135A1 (en) * | 2015-01-28 | 2016-08-04 | 徐州重型机械有限公司 | Movable counterweight mechanism of hoisting machinery and hoisting machinery |
| CN106698213A (en) * | 2017-01-20 | 2017-05-24 | 徐州重型机械有限公司 | Crane and assembly method thereof |
| CN108119604A (en) * | 2017-12-27 | 2018-06-05 | 徐州重型机械有限公司 | A kind of Mobile counterweight mechanism for engineering machinery |
| CN110127542A (en) * | 2019-05-27 | 2019-08-16 | 太原理工大学 | A kind of Combined balance weight mechanism and its application method for engineering machinery |
| WO2021259170A1 (en) * | 2020-06-24 | 2021-12-30 | 三一汽车起重机械有限公司 | Counterweight displacement mechanism and crane |
| WO2021259165A1 (en) * | 2020-06-23 | 2021-12-30 | 三一汽车起重机械有限公司 | Self-dismounting-mounting displacement counterweight apparatus and crane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008050068A (en) * | 2006-08-22 | 2008-03-06 | Tadano Ltd | Counterweight attachment/detachment device and fitting method for mobile crane |
| CN201228208Y (en) * | 2008-05-30 | 2009-04-29 | 刘成旭 | Removable counter weight device of lorry-mounted crane |
| CN102011386A (en) * | 2010-06-05 | 2011-04-13 | 常州液压成套设备厂有限公司 | Lifting pull-plug pin system of self-installed production platform |
| CN201952140U (en) * | 2011-01-19 | 2011-08-31 | 上海三一科技有限公司 | Movable rear counterweight device of crawler crane |
| CN102229415A (en) * | 2011-06-30 | 2011-11-02 | 三一汽车起重机械有限公司 | Crane and movable-type balance weight mechanism thereof |
-
2012
- 2012-03-09 CN CN201210061709.3A patent/CN102583176B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008050068A (en) * | 2006-08-22 | 2008-03-06 | Tadano Ltd | Counterweight attachment/detachment device and fitting method for mobile crane |
| CN201228208Y (en) * | 2008-05-30 | 2009-04-29 | 刘成旭 | Removable counter weight device of lorry-mounted crane |
| CN102011386A (en) * | 2010-06-05 | 2011-04-13 | 常州液压成套设备厂有限公司 | Lifting pull-plug pin system of self-installed production platform |
| CN201952140U (en) * | 2011-01-19 | 2011-08-31 | 上海三一科技有限公司 | Movable rear counterweight device of crawler crane |
| CN102229415A (en) * | 2011-06-30 | 2011-11-02 | 三一汽车起重机械有限公司 | Crane and movable-type balance weight mechanism thereof |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010308A (en) * | 2012-12-27 | 2013-04-03 | 徐州重型机械有限公司 | Crane and split type frame structure thereof |
| CN104210968A (en) * | 2014-08-06 | 2014-12-17 | 徐州重型机械有限公司 | Counterweight slipping control method and system |
| WO2016119135A1 (en) * | 2015-01-28 | 2016-08-04 | 徐州重型机械有限公司 | Movable counterweight mechanism of hoisting machinery and hoisting machinery |
| US10150656B2 (en) | 2015-01-28 | 2018-12-11 | Xuzhou Heavy Machinery Co., Ltd. | Mobile counterweight mechanism of a hoisting machine as well as a hoisting machine |
| DE112015006066B4 (en) | 2015-01-28 | 2021-09-16 | Xuzhou Heavy Machinery Co., Ltd. | Movable counterweight mechanism of a hoist as well as a hoist |
| CN106698213A (en) * | 2017-01-20 | 2017-05-24 | 徐州重型机械有限公司 | Crane and assembly method thereof |
| CN108119604A (en) * | 2017-12-27 | 2018-06-05 | 徐州重型机械有限公司 | A kind of Mobile counterweight mechanism for engineering machinery |
| CN110127542A (en) * | 2019-05-27 | 2019-08-16 | 太原理工大学 | A kind of Combined balance weight mechanism and its application method for engineering machinery |
| WO2021259165A1 (en) * | 2020-06-23 | 2021-12-30 | 三一汽车起重机械有限公司 | Self-dismounting-mounting displacement counterweight apparatus and crane |
| WO2021259170A1 (en) * | 2020-06-24 | 2021-12-30 | 三一汽车起重机械有限公司 | Counterweight displacement mechanism and crane |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102583176B (en) | 2014-03-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102583176B (en) | Mobile counterweight mechanism for engineering machine | |
| CN103912218B (en) | Rotary drilling rig and whole vehicle gravity center control method and system thereof | |
| CN101633478B (en) | Cable traction automatic leveling hanger and method thereof | |
| NL2021228B1 (en) | Mobile lifting column, lifting system comprising one or more of such lifting columns, and method for lifting a vehicle | |
| KR101216871B1 (en) | System for preventing collision of crane and method for controlling a crane | |
| CN203295034U (en) | Lifting hook, winding plant, crane and crane deviation early-warning device | |
| US20130335271A1 (en) | System And Method For Identifying And Tracking 3D Location Of Precast Components | |
| CN101643184B (en) | Crane and lifting rope swing angle detection device thereof | |
| CN105712177A (en) | Device for hoisting and controlling loads | |
| CN101774508B (en) | System for closed-loop detection of complete machine stability of crawler crane and control method thereof | |
| CN102799193B (en) | Arm frame position control device, concrete mixer | |
| CN102020211A (en) | Balancing device and crane with same | |
| CN102602812A (en) | Device for positioning a load in a lifting apparatus | |
| CN102774757B (en) | Engineering machinery | |
| JP2006111435A (en) | Automatic lifting/lowering motion control method and automatic lifting/lowering type frame control device for movable power generator | |
| CN105715622B (en) | Engineering machinery and its pumping system | |
| CN204374412U (en) | Tunnel geology radar antenna position control car | |
| CN106829741A (en) | Driving tele-control system and control method | |
| CN103362080B (en) | Sound barrier bolton equipment | |
| CN110422768A (en) | Anti-collision system and crane for crane | |
| CN102417144B (en) | Folding arm support structure and engineering machinery | |
| CN102826464A (en) | Crawler crane mobile counterweight device and crawler crane | |
| CN108867747B (en) | Automatic return adjusting system and method for engineering machinery operation arm support and engineering machinery | |
| CN115676634A (en) | Hydraulic control system for engineering machinery | |
| JP2011219242A (en) | Hoisting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |