CN202848954U - Hook height limit detecting device and dynamic compactor - Google Patents
Hook height limit detecting device and dynamic compactor Download PDFInfo
- Publication number
- CN202848954U CN202848954U CN 201220392391 CN201220392391U CN202848954U CN 202848954 U CN202848954 U CN 202848954U CN 201220392391 CN201220392391 CN 201220392391 CN 201220392391 U CN201220392391 U CN 201220392391U CN 202848954 U CN202848954 U CN 202848954U
- Authority
- CN
- China
- Prior art keywords
- hoists
- elevator
- mounting bracket
- rope
- detection device
- 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.)
- Withdrawn - After Issue
Links
Images
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The utility model relates to a hook height limit detecting device and a dynamic compactor. The hook height limit detecting device comprises a pressing rope mechanism and a position detecting mechanism, wherein the pressing rope mechanism comprises a compacting part and a to-be-detected part, the compacting part is used for compacting a hoist rope wound on a hoist, the to-be-detected part is connected to the compacting part and changes along with changes of the position, in the axial direction of the hoist, of the compacting part, and the position detecting mechanism comprises a detecting switch used for detecting whether the to-be-detected part is close or touched. According to the hook height limit detecting device and the dynamic compactor, height changes of the hoist rope are reflected indirectly by measuring thickness changes of the hoist, and therefore interferences received are few when engineering equipment works, sending of error signals is reduced or avoided, and influence of false commands on working of the engineering equipment is avoided to the greatest extent. Furthermore, the hook height limit detecting device and the dynamic compactor can be installed on a rotary table on which the hoist is located, stable working is achieved, and the occurrence that a steel wire rope, on which a hammer is hung, of an existing hammer type height limit switch, is broken is avoided.
Description
Technical field
The utility model relates to engineering machinery field, relates in particular to a kind of height under hook limit detection device and dynamic compaction machinery.
Background technology
At present, domestic greatly mainly with 300 ~ 500 tons of rice crawler type dynamic compaction machineries of 50 ~ 80 tons medium and small tonnage caterpiller cranes transformations, the dynamic compaction machinery of this transformation does not have special-purpose height limit switch, the general weight hammer type height limit switch of commonly using on the crawler crane that adopts, this weight hammer type height limit switch hangs over the jib head of dynamic compaction machinery usually by double-screw bolt, the below thin steel rope of switch is hung a weight; One through hole is arranged on the weight, and hoist rope passes from the hole of weight.Under normal circumstances, hoist rope can be in the hole of weight free up-and-down movement, can not drive weight; But when jib or hoist rope shake because dropping hammer, weight is shaken up and down.
Deadweight and connecting steel wire ropes by weight, weight can be in the free suspension state below arm head, make height limit switch be subjected to the pulling force of weight and connect, after if suspension hook rising highest point holds up weight, height limit switch is not subjected to the pulling force of weight and disconnects, and control system is controlled the upward movement of suspension hook by the make-and-break signal of height limit switch.
Drop hammer during the dynamic compaction machinery operation and can bring larger vibrations to jib, the weight hammer type height limit switch also can be along with jib shakes, make the easy fracture of thin steel rope of connecting valve and weight hammer type, cisco unity malfunction, jib vibrations easily cause also vertical tremor thereupon of weight in addition, make height limit switch send spurious signal, cause control system to send false command, thereby can not adapt to the strong rammer job requirements.
The utility model content
The purpose of this utility model is to propose a kind of height under hook limit detection device and dynamic compaction machinery, can satisfy under the dynamic compaction machinery job requirements, effectively carries out the spacing detection of height under hook.
For achieving the above object, the utility model provides a kind of height under hook limit detection device, comprise and press rope mechanism and position detecting mechanism, described pressure rope mechanism comprises for compression and hoists the compressed part of the hoist rope that twines on the elevator with the change in location that is connected with described compressed part and makes progress in the footpath of the described elevator that hoists along with compressed part and the section to be detected that changes, described position detecting mechanism comprise for detection of described section to be detected whether near to or in contact with detector switch.
Further, described compressed part comprises cylinder, elastomeric element and mounting bracket, described cylinder is installed in described mounting bracket near an end of the described elevator that hoists, described mounting bracket is hinged on the described elevator place turntable that hoists away from an end of the described elevator that hoists, described elastomeric element is installed on the described mounting bracket, and the predetermincd tension that compresses described hoist rope is provided for described cylinder.
Further, described to be detected for the sidepiece plane of described mounting bracket or be arranged on the detection plane of the sidepiece of described mounting bracket.
Further, on described elastomeric element, also be provided with by changing length and regulate the adjust bar of the predetermincd tension of described elastomeric element.
Further, also be included on the described elevator place turntable that hoists and arrange, described mounting bracket and elastomeric element are parallel to the pressure rope level(l)ing mechanism that the position of the axis direction of the described elevator that hoists is adjusted.
Further, also be included on the described elevator place turntable that hoists and arrange, according to the position of described pressure rope mechanism described detector switch is carried out the switch level regulating mechanism that the position of horizontal direction is adjusted.
Further, described cylinder is the nylon cylinder, and described cylinder is fixed on by antifriction-bearing box and is installed in the rotating shaft of an end of the close described elevator that hoists of described mounting bracket, and perhaps described cylinder is installed in an end of the close described elevator that hoists of described mounting bracket by antifriction-bearing box.
Further, the one or both ends of described cylinder on axis direction are provided with chamfering or fillet.
For achieving the above object, the utility model provides a kind of dynamic compaction machinery, comprise turntable, jib, elevator and hanger system hoist, the described elevator that hoists is fixed on the described turntable, the hoist rope that twines on the described elevator that hoists links to each other with described hanger system by the lifting pulley on the described jib, it is characterized in that, also comprise the aforementioned height under hook limit detection device that is arranged on the described turntable, compressed part in the pressure rope mechanism of described height under hook limit detection device compresses the hoist rope that twines on the described elevator that hoists, detector switch in the described position detecting mechanism to the section to be detected in the described pressure rope mechanism whether near to or in contact with detecting, and output detection signal.
Further, also comprise the hydraulic control that the detection signal that sends according to described detector switch limits the height of described hanger system.
Based on technique scheme, the utility model utilization presses rope mechanism to compress the hoist rope that twines on the elevator that hoists, the variation in thickness of twining at the elevator that hoists along with hoist rope, press rope mechanism also occurrence positions change, detect the position of pressing the section to be detected in the rope mechanism by detector switch again and determine whether hanger system has reached the constrain height position relevant with the hoist rope thickness that twines on the elevator that hoists.The spacing monitoring device of the utility model height under hook embodies the height change of hoist rope indirectly by hoist variation in thickness on the elevator of measurement, therefore when the engineering equipment operation, be interfered less, sending of minimizing and eliminating error signal avoids false command on the impact of engineering equipment operation as far as possible; In addition, the spacing monitoring device of the utility model height under hook can be installed on the elevator place turntable that hoists, more stable when operation, be not easy to occur along with operation process larger vibrations, normal operation that can be continual and steady has also avoided existing weight hammer type height limit switch may hang the problem of the wire cable rupture of weight.The utility model is applicable to the various engineering equipments that need to use hanger systems, especially is fit to be applied to dynamic compaction machinery, can be effectively the height of hanger system is detected and controls.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, consists of the application's a part, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation under the embodiment installing condition of the utility model height under hook limit detection device.
Fig. 2 is the applied control system structural representation of the utility model height under hook limit detection device embodiment.
Fig. 3,4,5 is respectively the schematic diagram in front, depression angle and the AA cross section of pressing rope mechanism among the utility model height under hook limit detection device embodiment.
Fig. 6,7,8 is respectively the schematic diagram of front, depression angle and the LOOK LEFT degree of position detecting mechanism among the utility model height under hook limit detection device embodiment.
Fig. 9,10 is respectively the positive angle of another embodiment of the utility model height under hook limit detection device and the schematic diagram of depression angle.
The specific embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
As shown in Figure 1, be the structural representation under the embodiment installing condition of the utility model height under hook limit detection device.In the present embodiment, the height under hook limit detection device comprises presses rope mechanism 4 and position detecting mechanism 5, wherein press rope mechanism 4 to comprise for compression hoist compressed part and the section to be detected of the hoist rope that twines on the elevator 1, wherein to be detected change in location that is connected with compressed part and makes progress in the footpath of the elevator 1 that hoists along with compressed part and changing.Position detecting mechanism 5 comprises the detector switch that whether approaches for detection of described section to be detected.
The elevator 1 that hoists among Fig. 1 can be fixed on the plane of turntable 2 of dynamic compaction machinery by support 3, same, press rope mechanism 4 and position detecting mechanism 5 to be arranged on too on the plane of this turntable 2, because turntable 2 is because own wt, structure and the center of gravity in-scope that is in whole dynamic compaction machinery, therefore then more stable than the jib of dynamic compaction machinery, when dynamic compaction machinery carries out operation, the turntable 2 of dynamic compaction machinery is much smaller than the vibrations that jib occurs, therefore the impact that is arranged on the suffered vibrations of height under hook limit detection device on the turntable is also therefore much smaller, this just reduces to a certain extent or shakes sending of the spurious signal that causes when having been avoided because of operation, and then avoided control system to send wrong control command as far as possible, keep the continual and steady operation of dynamic compaction machinery.
Fig. 2 has provided the applied control system structure of the utility model height under hook limit detection device embodiment, as can see from Figure 2, press rope mechanism near hoisting elevator, and change the position of its section to be detected that connects along with the steel rope thickness that twines on the elevator that hoists, and position detecting mechanism detects the change in location of pressing the section to be detected in the rope mechanism just, in case detecting the position of section to be detected has reached predeterminated position (this process can realize by the distance quantitative determination, also can be qualitative assay mode realization of whether being detected of section to be detected etc.) or detector switch contact section to be detected, thereby trigger position testing agency sends detection signal.
The equipment or the element that receive this detection signal can be the alarm units of acoustooptic form, are used for the generation that alert reaches the constrain height event, in time carry out manual intervention to impel operating personal; The equipment or the element that receive this detection signal also can be automatic control units, the hydraulic control shown in Fig. 2 for example, directly the hydraulic drive mechanism of the elevator that hoists is carried out the transmission of control command according to default program, with change the hoist running etc. of elevator of rotation direction, velocity of rotation and the termination of elevator that hoists.Certainly also allow the combination of said units or integratedly jointly play a role, perhaps selectable playing a role.
Fig. 3-5 has provided respectively the schematic diagram in front, depression angle and the AA cross section of pressing rope mechanism among the utility model height under hook limit detection device embodiment.From Fig. 3-5, can see, press rope mechanism to comprise cylinder 54,55, elastomeric element 53 and mounting bracket 51.With reference to the position relationship of pressing rope mechanism with the elevator that hoists among Fig. 9 and Figure 10, cylinder 54 and cylinder 55 are installed in mounting bracket 51 near an end of the elevator 1 that hoists, mounting bracket 51 is hinged on the elevator 1 place turntable 2 that hoists away from an end of the elevator 1 that hoists, elastomeric element 53 is installed on the mounting bracket 51, and the predetermincd tension that compresses the hoist rope on the elevator 1 that hoists is provided for cylinder 54,55.Why compressed part adopts roll form, then be consider the friction of rolling mode in the cliding friction mode can the reduce cylinder and steel rope between because the loss that rubs and cause.
In another kind of implementation, rotating shaft 56 can directly be fixed on mounting bracket 51 near an end of the elevator 1 that hoists, rotating shaft 56 is static with respect to mounting bracket 51, and cylinder 54,55 is installed in the rotating shaft 56 by antifriction-bearing box 57, wherein the outer ring of antifriction-bearing box 57 and cylinder 54,55 are fixed, and inner ring and rotating shaft 56 are fixing, thereby realization cylinder 54,55 also can be realized the rotational action with respect to mounting bracket 51.The employing antifriction-bearing box can reduce the friction between cylinder and the axle effectively, makes the rolling of cylinder more smooth and easy.In addition, consider that hoist rope may can change the position in the elevator rotation process that hoists, may skid off the cylinder in-scope, therefore can be provided with chamfering or fillet in the one or both ends on the axis direction of cylinder, guide that hoist rope is easier to be entered in the scope that cylinder compresses.
Provide the predetermincd tension that compresses the hoist rope on the elevator 1 that hoists for cylinder 54,55 in order to adjust elastomeric element 53, can the adjust bar 52 that come the predetermincd tension of adjustable elastic parts 53 by changing length be set at elastomeric element 53.Can see from Fig. 3,4, adjust bar 52 can be arranged on such as spring, elastic threads etc. of elastomeric element 53() and mounting bracket 51 between, just can adjust the predetermincd tension (being that elastomeric element 53 provides the predetermincd tension that compresses the hoist rope on the elevator 1 that hoists for cylinder 54,55) of elastomeric element 53 by the length that changes adjust bar 52, the position of certainly changing adjust bar 52 and elastomeric element 53 is feasible too.Elastomeric element 53 also can adopt the form that is arranged on mounting bracket 51 tops, utilize downward pressure that predetermincd tension is provided, equally, can utilize adjust bar 52 to adjust the predetermincd tension of elastomeric element 53 (being that elastomeric element 53 provides the predetermincd tension that compresses the hoist rope on the elevator 1 that hoists for cylinder 54,55).
In conjunction with Fig. 5, Fig. 9 and Figure 10, can find out, press the cylinder of rope mechanism one end pressing the elevator 1 that hoists, and the hinge hole 58 of the other end can be fixed on the bearing of turntable 2 by bearing pin etc., press like this rope mechanism just can change rotational angle around hinge hole 58 corresponding axis along with the variation in thickness of hoist rope on the elevator 1 that hoists, for example ought hoisting, the thickness of hoist rope becomes large on the elevator 1, then hoist rope overcomes cylinder to its predetermincd tension that applies, cylinder is moved to the direction away from the elevator that hoists, accordingly, mounting bracket also prolongs the angle between 58 respective axes increases of hinge hole and turntable 2 planes thereupon.
The below describes by the structure of Fig. 6-8 pair position detecting mechanism again, wherein position detecting mechanism has the switch mounting bracket 42 of detector switch 41 and fixed test switch 41, wherein detector switch 41 can adopt approach switch or travel switch, the position of its setting can be selected near mounting bracket 51(referring to Fig. 3) the side, and the section to be detected that presses rope mechanism is set to the sidepiece plane of mounting bracket 51 or is arranged on the detection plane of the sidepiece of mounting bracket, and corresponding detection signal is sent in the detection that utilizes detector switch to treat test section.For instance, can be first so that detector switch 41 just can detect the section to be detected on the mounting bracket 51, rotation along with mounting bracket 51, its section to be detected is gradually away from detector switch 41, corresponding detector switch 41 measured detection signals also change thereupon, when this detection signal less than certain preset value or when can't detect to be detected, then judge the limitation in height that has reached hanger system, to send corresponding detection signal this moment, and carry out and to warn, to control hammer ram and come off, reduce the equiprobable operation of elevator rotating speed.Perhaps adopt another kind of implementation, the position to be detected place during the maximum height that namely determine to limit first, and set the detector switch position with this, when normal operation, if the signal that detector switch detects is greater than certain preset value or when detecting to be detected, illustrate that section to be detected is very near detector switch this moment, namely corresponding to the position of the maximum height that limits, then can judge the limitation in height that has reached hanger system, to send corresponding detection signal this moment, and carry out and to warn, to control hammer ram and come off, reduce the equiprobable operation of elevator rotating speed.
Consider the position that is arranged on the spacing required hoist rope of height under hook that the position of cylinder setting may not be lucky, and during work, the mode that is fixedly installed rope press device with respect to turntable may cause hoist rope to be separated from the scope that cylinder compresses, thereby cause the inaccurate of detection, therefore preferably can be to pressing rope mechanism to adjust, to adapt to the position at hoist rope place.
Can adjust on the axis direction with respect to the elevator that hoists in order to make cylinder, can arrange at the elevator 1 place turntable 2 that hoists and press the rope level(l)ing mechanism, can be parallel to mounting bracket and elastomeric element the position adjustment of the axis direction of the described elevator that hoists.Wherein pressure rope level adjusting structure has not only comprised the position adjustment structure of mounting bracket, has also comprised the position adjustment structure of elastomeric element.Wherein the hinge hole 58 of the mounting bracket level of can passing is transferred double-screw bolt 581, and interchangeable by left-handed nut 584 and right handed unt 585(left-handed nut 584 and right handed unt's 585 installation site) fix mounting bracket and adjust mounting bracket in the position of the axis direction that is parallel to the elevator 1 that hoists.Can secures resilient member on the levelling lever 582, and elastomeric element can carry out the adjustment of position at levelling lever 582.
Accordingly, can also the switch level regulating mechanism be set at the elevator 1 place turntable 2 that hoists, can carry out the position adjustment of horizontal direction to detector switch 41 according to the position of pressing rope mechanism.Put the switch level regulating mechanism and comprise mount pad 44, mount pad 44 is provided with long and narrow groove, the switch mounting bracket 42 of fixed test switch 41 is bolted on the mount pad 44, bolt can slide in the groove of mount pad 44, realize that the position of detector switch on the axis direction that is parallel to the elevator that hoists is adjustable, the position adjustment tank 43 by switch mounting bracket 42 tops can realize that the position of detector switch 41 on the vertical direction of the groove direction of slip of mount pad 44 that is arranged in the position adjustment tank 43 is adjustable again.
These adjusting mechanisms can make detector switch 41 can successfully adjust to suitable position, thereby obtain accurate and the actv. detection signal.
The engineering equipment that foregoing various height under hook limit detection device embodiment goes for all kinds of use hanger systems and need to limit the height of hanger system, especially be fit to be applied on the dynamic compaction machinery, in a dynamic compaction machinery embodiment of the present utility model, dynamic compaction machinery comprises turntable, jib, elevator and hanger system hoist, the elevator that hoists is fixed on the described turntable, the hoist rope that twines on the elevator that hoists links to each other with hanger system by the lifting pulley on the jib, this dynamic compaction machinery also comprises and is arranged on any height under hook limit detection device embodiment that introduces the front on the described turntable, compressed part in the pressure rope mechanism of this height under hook limit detection device compresses the hoist rope that twines on the described elevator that hoists, detector switch in the described position detecting mechanism to the section to be detected in the described pressure rope mechanism whether near to or in contact with detecting, and output detection signal.
This dynamic compaction machinery of using height under hook limit detection device embodiment can reduce or rocks when avoiding operation greatly the impact of height under hook limit detection device, avoids sending of spurious signal, guarantees that the stable of operation carries out.
In another dynamic compaction machinery embodiment, also comprise the hydraulic control that the detection signal that sends according to described detector switch limits the height of described hanger system.
The below describes the spacing testing process of height under hook take dynamic compaction machinery as example, and is as follows:
Before the dynamic compaction machinery operation, can allow the maximum height that rises according to the brachium of the jib of dynamic compaction machinery and suspension hook, transfer double-screw bolt, right handed unt and left-handed nut to adjust the installation site of pressing rope mechanism by the adjustment level, the position of hoist rope on the elevator that hoists when making compressed part just in time be pressed in the suspension hook hit the ceiling.After adjusting the installation site of compressed part, adjust again the installation site of detector switch by switch mounting bracket and mount pad, make detector switch just in time can detect to be detected of mounting bracket side fully or just in time can't detect section to be detected.When the suspension hook hit the ceiling, hoist rope is wound into the below of compressed part, and the angle of its mounting bracket is changed, and causes the detection signal of detector switch to change thereupon.The signal that transmits by detector switch is controlled the unloader valve of hydraulic efficiency pressure system, and the restriction suspension hook can not continue to rise, and can only descend.
Should be noted that at last: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement the specific embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (10)
1. height under hook limit detection device, it is characterized in that, comprise and press rope mechanism and position detecting mechanism, described pressure rope mechanism comprises for compression and hoists the compressed part of the hoist rope that twines on the elevator with the change in location that is connected with described compressed part and makes progress in the footpath of the described elevator that hoists along with compressed part and the section to be detected that changes, described position detecting mechanism comprise for detection of described section to be detected whether near to or in contact with detector switch.
2. height under hook limit detection device according to claim 1, it is characterized in that, described compressed part comprises cylinder, elastomeric element and mounting bracket, described cylinder is installed in described mounting bracket near an end of the described elevator that hoists, described mounting bracket is hinged on the described elevator place turntable that hoists away from an end of the described elevator that hoists, described elastomeric element is installed on the described mounting bracket, and the predetermincd tension that compresses described hoist rope is provided for described cylinder.
3. height under hook limit detection device according to claim 2 is characterized in that, described to be detected for the sidepiece plane of described mounting bracket or be arranged on the detection plane of the sidepiece of described mounting bracket.
4. height under hook limit detection device according to claim 2 is characterized in that, also is provided with on described elastomeric element by changing length and regulates the adjust bar of the predetermincd tension of described elastomeric element.
5. height under hook limit detection device according to claim 2, it is characterized in that, also be included on the described elevator place turntable that hoists and arrange, described mounting bracket and elastomeric element are parallel to the pressure rope level(l)ing mechanism that the position of the axis direction of the described elevator that hoists is adjusted.
6. height under hook limit detection device according to claim 5, it is characterized in that, also be included on the described elevator place turntable that hoists and arrange, according to the position of described pressure rope mechanism described detector switch is carried out the switch level regulating mechanism that the position of horizontal direction is adjusted.
7. height under hook limit detection device according to claim 2, it is characterized in that, described cylinder is the nylon cylinder, and described cylinder is fixed on by antifriction-bearing box and is installed in the rotating shaft of an end of the close described elevator that hoists of described mounting bracket, and perhaps described cylinder is installed in an end of the close described elevator that hoists of described mounting bracket by antifriction-bearing box.
8. height under hook limit detection device according to claim 7 is characterized in that, the one or both ends of described cylinder on axis direction are provided with chamfering or fillet.
9. dynamic compaction machinery, comprise turntable, jib, elevator and hanger system hoist, the described elevator that hoists is fixed on the described turntable, the hoist rope that twines on the described elevator that hoists links to each other with described hanger system by the lifting pulley on the described jib, it is characterized in that, also comprise the arbitrary described height under hook limit detection device of the claim 1 ~ 8 that is arranged on the described turntable, compressed part in the pressure rope mechanism of described height under hook limit detection device compresses the hoist rope that twines on the described elevator that hoists, detector switch in the described position detecting mechanism to the section to be detected in the described pressure rope mechanism whether near to or in contact with detecting, and output detection signal.
10. dynamic compaction machinery according to claim 9 is characterized in that, also comprises the hydraulic control that the detection signal that sends according to described detector switch limits the height of described hanger system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392391 CN202848954U (en) | 2012-08-09 | 2012-08-09 | Hook height limit detecting device and dynamic compactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220392391 CN202848954U (en) | 2012-08-09 | 2012-08-09 | Hook height limit detecting device and dynamic compactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202848954U true CN202848954U (en) | 2013-04-03 |
Family
ID=47980174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220392391 Withdrawn - After Issue CN202848954U (en) | 2012-08-09 | 2012-08-09 | Hook height limit detecting device and dynamic compactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202848954U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768030A (en) * | 2012-08-09 | 2012-11-07 | 徐工集团工程机械股份有限公司 | Hook height limit detection device and dynamic compactor |
| CN108894223A (en) * | 2018-08-09 | 2018-11-27 | 杭叉集团股份有限公司 | A kind of piling machine and its ward off rope device |
| CN109205492A (en) * | 2018-11-16 | 2019-01-15 | 上海汇焰智能科技有限公司 | Rope winch control system |
| CN110862039A (en) * | 2019-11-12 | 2020-03-06 | 湖南博邦重工有限公司 | Dynamic compaction machine control system |
| CN112593927A (en) * | 2020-12-07 | 2021-04-02 | 北京三一智造科技有限公司 | Depth sounding device of rotary drilling rig and rotary drilling rig |
| CN114104974A (en) * | 2021-10-22 | 2022-03-01 | 天津一汽丰田汽车有限公司 | Warning device for crane sling, control method, terminal, storage medium and application |
-
2012
- 2012-08-09 CN CN 201220392391 patent/CN202848954U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102768030A (en) * | 2012-08-09 | 2012-11-07 | 徐工集团工程机械股份有限公司 | Hook height limit detection device and dynamic compactor |
| CN102768030B (en) * | 2012-08-09 | 2015-04-29 | 徐工集团工程机械股份有限公司 | Hook height limit detection device and dynamic compactor |
| CN108894223A (en) * | 2018-08-09 | 2018-11-27 | 杭叉集团股份有限公司 | A kind of piling machine and its ward off rope device |
| CN109205492A (en) * | 2018-11-16 | 2019-01-15 | 上海汇焰智能科技有限公司 | Rope winch control system |
| CN110862039A (en) * | 2019-11-12 | 2020-03-06 | 湖南博邦重工有限公司 | Dynamic compaction machine control system |
| CN112593927A (en) * | 2020-12-07 | 2021-04-02 | 北京三一智造科技有限公司 | Depth sounding device of rotary drilling rig and rotary drilling rig |
| CN112593927B (en) * | 2020-12-07 | 2023-08-22 | 北京三一智造科技有限公司 | Depth measuring device of rotary drilling rig and rotary drilling rig |
| CN114104974A (en) * | 2021-10-22 | 2022-03-01 | 天津一汽丰田汽车有限公司 | Warning device for crane sling, control method, terminal, storage medium and application |
| CN114104974B (en) * | 2021-10-22 | 2023-09-19 | 天津一汽丰田汽车有限公司 | Crown block lifting appliance warning device, control method, terminal, storage medium and application |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202848954U (en) | Hook height limit detecting device and dynamic compactor | |
| AU2014328348B2 (en) | Method and apparatus for monitoring displacement adjustment state of steel rope tension balancing of multi-rope hoist | |
| RU2401241C2 (en) | Device to sling parts with force compensation and lifting system therewith | |
| CN102768030B (en) | Hook height limit detection device and dynamic compactor | |
| CN202729680U (en) | Rope pressing device | |
| CN203158963U (en) | Device for monitoring tension of steel wire ropes of multi-rope friction hoist on line | |
| CN205616444U (en) | Examine type electric block lifting hook in initiative | |
| CN103644172A (en) | Device and method for detecting and protecting telescopic oil cylinder of crane | |
| CN103342288A (en) | Mast rise and fall synchronous control system of crawler crane | |
| CN205170251U (en) | Slack rope protection monitoring alarm device | |
| CN102633190A (en) | Control method and device for super-lift system, super-lift system and engineering machinery | |
| CN202704850U (en) | Control device for super-lift system, super-lift system and engineering machinery | |
| CN202030402U (en) | Dynamic monitoring and fault diagnosis device for head sheave of friction hoist | |
| CN105417415A (en) | Backward-tipping prevention protection method, device and system based on movable arm tower crane | |
| CN209819069U (en) | Suspension anti-falling mechanism for X-ray machine | |
| CN201647760U (en) | Wire breaking real-time detector of elevator hauling rope | |
| CN212769275U (en) | Detection and safety device for tension of hoisting rope | |
| CN102120538A (en) | Falling protector and dynamic operation monitoring system for cage guide rope | |
| CN112607596A (en) | Method and device for inhibiting swinging of lifting hook of automobile crane | |
| CN112249934A (en) | Large pile-winding type full-circle slewing crane | |
| CN220950974U (en) | Luffing hinge pin type weighing structure and mobile crane | |
| CN205151450U (en) | Adjust rope fastening in order to change tensile device of wire rope | |
| CN201952078U (en) | Running state monitoring system for falling protectors and cage guide ropes | |
| CN215924194U (en) | Moment limiter | |
| CN202766116U (en) | Lifting hook steel wire rope left-right deviation detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130403 Effective date of abandoning: 20150429 |