CN213897074U

CN213897074U - Automatic hook releasing device of hydraulic tamper

Info

Publication number: CN213897074U
Application number: CN202022747174.8U
Authority: CN
Inventors: 郭贵敏; 刘俊毕; 邓育荣; 徐万龙; 王锡良
Original assignee: China Zhonghua Geotechnical Engineering Group Co ltd
Current assignee: China Zhonghua Geotechnical Engineering Group Co ltd
Priority date: 2020-11-24
Filing date: 2020-11-24
Publication date: 2021-08-06
Anticipated expiration: 2030-11-24

Abstract

The utility model discloses an automatic hook releasing device of a hydraulic tamper, which comprises a connector, at least two hooks, a single-action hydraulic cylinder and a hoisting base, wherein the connector comprises at least two pairs of corresponding vertical hanging plates, a connecting plate is connected between the adjacent vertical hanging plates, the vertical hanging plates are provided with lower through holes, the outer end surface of the vertical hanging plate above the lower through holes is convexly provided with a guide bulge, the paired vertical hanging plates are hinged between the two lower through holes, the single-action hydraulic cylinder is arranged between the two pairs of vertical hanging plates in a penetrating way, the single-action hydraulic cylinder is connected with the upper end of the vertical hanging plates, the lower end sleeve of the piston rod of the single-action hydraulic cylinder is provided with a guide positioning sleeve corresponding to the hook, the hoisting base comprises a guide cone, a positioning cylinder and a supporting leg, the small-diameter end of the guide cone is connected above the top wall of the positioning cylinder in a pressing way, the inner edge of the positioning cylinder forms a positioning part, the top wall of the positioning part corresponds to the guide bulge, the bottom wall of the positioning part corresponds to the hook, the upper end of the landing leg is fixedly connected to the guide cone, and the lower end of the landing leg is fixedly connected to the rammer.

Description

Automatic hook releasing device of hydraulic tamper

Technical Field

The utility model belongs to dynamic compaction construction equipment field especially indicates an automatic couple ware that takes off of hydraulic ram.

Background

The existing detacher in the dynamic compaction construction process widely uses an artificial hook, a mechanical automatic detacher and a small amount of hydraulic detachers. The mechanical detacher has the advantages that the time for auxiliary operation such as manual hooking is long, the construction efficiency is low, and the potential safety hazard of hooking personnel is increased; the mechanical automatic unhooking device adopts steel wire rope tension to forcibly unhook, and strong impact force can generate great influence on the unhooking device and a boom system, so that the service life and the safety of the unhooking device and the boom are influenced. The hydraulic detacher mostly adopts active control, an oil supply pipeline is required to take off and land along with the take-off and land of the detacher during operation, and the pipeline has short service life and poor safety because of the influence of conditions such as repeated bending, flying stones, environment and the like; in addition, due to the limitation of factors such as oil supply pressure, structural form and the like, the conventional hydraulic automatic detacher is mostly suitable for medium and small-tonnage rammers, and is not suitable for large-tonnage rammers with the weight of more than 50 tons.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the above-mentioned technical problem and provide an automatic couple ware that takes off of hydraulic pressure dynamic compaction that convenient operation, operating efficiency are high and the cost is lower relatively.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a hydraulic ram automatic hook releasing device comprises a connector, at least two hooks, a single-action hydraulic cylinder and a hoisting base, wherein the connector comprises at least two pairs of corresponding vertical hanging plates, adjacent vertical hanging plates are connected through a connecting plate, lower through holes are formed in the vertical hanging plates, guide bulges are convexly arranged on the outer end surfaces of the vertical hanging plates above the lower through holes, the hooks are hinged between the two lower through holes of the paired vertical hanging plates, the single-action hydraulic cylinder is arranged between the two pairs of vertical hanging plates in a penetrating way and is connected with the upper ends of the vertical hanging plates, a guide positioning sleeve corresponding to the hooks is fixed on the lower end sleeve of a piston rod of the single-action hydraulic cylinder, the hoisting base comprises a guide cone, a positioning cylinder and supporting legs, the small-diameter end of the guide cone is connected above the top wall of the positioning cylinder in a pressing way, a positioning part is formed on the inner edge of the positioning cylinder, and the top wall of the positioning part corresponds to the guide bulges, the bottom wall of the positioning part corresponds to the hook, the upper end of the supporting leg is fixedly connected to the guide conical cylinder, and the lower end of the supporting leg is fixedly connected to the rammer.

Preferably, the connector comprises four pairs of vertical hanging plates which are uniformly and annularly arranged, the upper ends of the vertical hanging plates are provided with upper through holes, the outer wall of the single-action hydraulic oil cylinder is annularly provided with more than two lug plates, the lower ends of the lug plates are clamped between the two upper through holes of the paired vertical hanging plates, and the lower ends of the lug plates are provided with connecting holes corresponding to the upper through holes and are connected through pin shafts.

Further, the hydraulic pressure part is communicated to the single-acting hydraulic cylinder, the hydraulic pressure part comprises a high-level oil tank, a one-way valve, an electromagnetic directional valve and a logic valve, a liquid inlet of the one-way valve is communicated with the high-level oil tank, a liquid outlet of the one-way valve is communicated with an upper cavity of the single-acting hydraulic cylinder, a liquid inlet of the electromagnetic directional valve is communicated with the upper cavity of the single-acting hydraulic cylinder, a liquid outlet of the electromagnetic directional valve is communicated with a control port of the logic valve, a liquid inlet of the logic valve is communicated with the upper cavity of the single-acting hydraulic cylinder, a liquid outlet of the logic valve is communicated with the.

The utility model has the advantages that: the utility model discloses convenient operation, the operating efficiency height and the cost is lower relatively can realize automatic string hammer of rammer and dynamic unhook in the face of the operating mode of various complicacies.

Drawings

In order to more clearly illustrate the embodiments of the present invention, the embodiments will be described below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of the hook state of the present invention.

FIG. 2 is a schematic structural view of the unhooking state of the present invention

Fig. 3 is a schematic structural diagram of the connector and the hook according to the present invention.

Fig. 3A is a schematic structural diagram of the connector of the present invention.

Fig. 4 is a schematic structural view of the hoisting base of the present invention.

Fig. 5 is a schematic structural view of the single-acting hydraulic cylinder of the present invention.

Fig. 6 is a hydraulic schematic diagram of the hydraulic cylinder and the hydraulic component of the present invention.

1: connector, 11: perpendicular link plate, 111: upper perforation, 112: lower perforation, 113: guide projection, 2: hook, 3: single-acting hydraulic cylinder, 31: ear plate, 32: guiding and positioning sleeve, 33: baffle, 34: fastening nut, 4: hoisting a base, 41: guide cone, 42: positioning cylinder, 421: positioning portion, 422: trim portion, 43: leg, 5: ram, 61: high-level oil tank, 62: check valve, 63: electromagnetic directional valve, 64: logic valve, 7: a hook group.

Detailed Description

The following description is given by way of example only, and not by way of limitation, of the scope of the invention.

For a better understanding of the features and technical content of the present invention, please refer to the detailed description and drawings related to the present invention.

As shown in fig. 1 to 6, which are the first preferred embodiment of the present invention, a hydraulic ram automatic unhooking device includes a connector 1, four hooks 2, a single-acting hydraulic cylinder 3 and a hoisting base 4; the connector 1 comprises at least two pairs of vertical hanging plates 11 which are uniformly and annularly arranged, the adjacent vertical hanging plates 11 are connected through a connecting plate, the upper end of each vertical hanging plate 11 is provided with an upper through hole 111, the middle part of each vertical hanging plate is provided with a lower through hole 112, the outer end surface of each vertical hanging plate 11 above the lower through hole 111 is convexly provided with a guide bulge 113, and the hook 2 is hinged between the two lower through holes of the paired vertical hanging plates; the outer wall of the single-acting hydraulic cylinder 3 is annularly provided with more than two lug plates 31, the lower end of each lug plate 31 is clamped between two upper through holes 111 of the paired vertical hanging plates 11, the lower end of each lug plate 31 is provided with a connecting hole corresponding to the upper through hole 111, and the upper through hole and the connecting hole are provided with a pin shaft in a penetrating way so that the outer single-acting hydraulic cylinder 3 is connected with the connector 1; a guide positioning sleeve 32 corresponding to the hook 2 is fixedly sleeved at the lower end of a piston rod of the single-action hydraulic cylinder 3, a baffle 33 is arranged on a screw rod below the guide positioning sleeve 32, and a fastening nut 34 is screwed on the screw rod below the baffle; the hoisting base 4 comprises a guide cone cylinder 41, a positioning cylinder 42 and a supporting leg 43, wherein the small-diameter end of the guide cone cylinder 41 is connected above the middle part of the top wall of the positioning cylinder 42 in a pressing mode, a clamping part 422 is formed at the outer edge of the positioning cylinder, a positioning part 421 is formed at the inner edge of the positioning cylinder 42, the top wall of the positioning part 421 corresponds to the guide bulge 113, and the bottom wall of the positioning part 421 corresponds to the hook 2; an L-shaped socket is formed in the inner wall of the supporting leg 43, the oblique top wall of the supporting leg is connected with the outer wall of the guide cone, the clamping part 422 is located at the upper end of the L-shaped socket, and the lower end of the supporting leg is fixedly connected to the rammer 5.

The hydraulic pressure part is connected to the single-acting hydraulic cylinder, this hydraulic pressure part includes high-order oil tank 61, check valve 62, solenoid directional valve 63 and logic valve 64, this check valve 62's inlet communicates high-order oil tank 61, this check valve 62's liquid outlet communicates this single-acting hydraulic cylinder 3's epicoele, this solenoid directional valve 63's inlet communicates this single-acting hydraulic cylinder 3's epicoele, this solenoid directional valve 63's liquid outlet communicates logic valve 64's control port, this logic valve 64's inlet communicates this single-acting hydraulic cylinder 3's epicoele, this logic valve 64's liquid outlet communicates high-order oil tank, this check valve 62 does not have case reset spring and vertical installation, consequently the utility model discloses a hydraulic system does not need the power supply.

The working process of the utility model is described as follows: the utility model discloses a detacher is from corresponding highly doing the whereabouts of free fall, hoisting mechanism brake reduces detacher falling speed when reacing apart from the ram take the altitude, make its slow whereabouts, the direction awl section of thick bamboo that the direction arch of connector contacted the hoist and mount base in the detacher continues the whereabouts along the direction awl section of thick bamboo, the detacher is under the guide action, fall into the vestibule of hoist and mount base, the direction arch of connector is pressed on the location portion of hoist and mount base this moment, the detacher stops the whereabouts, the location is accomplished.

After the detacher is positioned, the lifting mechanism continues to slowly release to enable a hook group 7 (the hook group is connected with the upper end of a piston rod of the single-acting hydraulic cylinder) to fall, at the moment, the piston rod falls under the action of self weight and gravity of the hook group, a guide positioning sleeve is driven to move downwards in the falling process, the guide positioning sleeve is in contact with the inner end of the hook and pushes the hook to rotate outwards, when the piston rod falls to a limited position, the hook rotates to the hook position (shown in figure 1), the electromagnetic valve and the logic valve are controlled to be closed when the piston rod falls, the check valve is vertically installed without a valve core return spring, the two ends of a valve core of the check valve can be automatically opened when no pressure difference exists, hydraulic oil in a high-level oil tank flows into the hydraulic cylinder under the action of gravity and adsorption of an upper cavity of the oil cylinder until the whole upper cavity is filled; and then, slowly lifting the hoisting steel wire rope to a tightening state, and connecting the oil cylinder with the rammer through the detacher, so that pressure is built in the oil cylinder, the one-way valve and the logic valve are simultaneously in a closed state under the pressure, hydraulic oil in an upper cavity of the oil cylinder is completely locked, the oil cylinder does not act any more, and the hooking is completed.

After the hook is hooked, the lifting mechanism drives the hook group and the detacher to lift, and after the rammer reaches the lifting height, the lifting mechanism stops moving. At the moment, a unhooking signal is given through a remote controller, an electromagnetic valve is opened, hydraulic oil in an upper cavity of a hydraulic oil cylinder instantly flows back to a high-level oil tank through a logic valve under the action of pressure, after the pressure is lost, a piston rod moves upwards under the action of the tension of a steel wire rope, simultaneously, a rammer, an oil cylinder outer cylinder, a connector and the like begin to fall under the action of gravity, in the motion process, the piston rod drives a guide positioning sleeve to be rapidly separated from a hook, the hook rotates under the action of the gravity of the rammer, and the dynamic separation of the unhooking device and the rammer is realized when the hook is.

The utility model discloses an unhooking device can realize accurate guiding orientation, through protruding and the two-way completion of the awl section of thick bamboo that leads on the hoist and mount base of connector lower part guiding orientation. The utility model discloses simple structure, convenient operation is swift, and application scope is wide, and the operating efficiency is high and the cost is relatively lower can realize automatic string hammer of rammer and dynamic unhook work in the face of various complicated operating modes.

Claims

1. The utility model provides an automatic couple ware that takes off of hydraulic ram which characterized in that: the connector comprises at least two pairs of corresponding vertical hanging plates, adjacent vertical hanging plates are connected through a connecting plate, lower through holes are formed in the vertical hanging plates, guide bulges are convexly arranged on the outer end faces of the vertical hanging plates above the lower through holes, the hooks are hinged between the two lower through holes of the paired vertical hanging plates, a single-action hydraulic oil cylinder is arranged between the two pairs of vertical hanging plates in a penetrating manner, the single-action hydraulic oil cylinder is connected with the upper ends of the vertical hanging plates, a guide positioning sleeve corresponding to the hooks is fixed on the lower end sleeve of a piston rod of the single-action hydraulic oil cylinder, the hoisting base comprises a guide conical cylinder, a positioning cylinder and supporting legs, the small-diameter end of the guide conical cylinder is connected above the top wall of the positioning cylinder in a pressing manner, a positioning part is formed on the inner edge of the positioning cylinder, the positioning part corresponds to the guide bulges, and the bottom wall of the positioning part corresponds to the hooks, the upper end of the landing leg is fixedly connected to the guide cone, and the lower end of the landing leg is fixedly connected to the rammer.

2. The automatic uncoupling device of hydraulic ram of claim 1, wherein: the connector comprises four pairs of vertical hanging plates which are evenly arranged in a surrounding mode, the upper ends of the vertical hanging plates are provided with through holes, the outer wall of the single-action hydraulic oil cylinder is annularly provided with more than two lug plates, the lower ends of the lug plates are clamped between the two through holes of the paired vertical hanging plates, and the lower ends of the lug plates are provided with connecting holes corresponding to the upper through holes and are connected through pin shafts.

3. The automatic uncoupling device of hydraulic ram of claim 1, wherein: the hydraulic pressure part of nonoculture, this hydraulic pressure part includes high-order oil tank, a check valve, solenoid directional valve and logic valve, the inlet of this check valve communicates high-order oil tank, the liquid outlet of this check valve communicates the epicoele of this nonoculture pneumatic cylinder, the inlet of this solenoid directional valve communicates the epicoele of this nonoculture pneumatic cylinder, the liquid outlet of this solenoid directional valve communicates the control port of logic valve, the inlet of this logic valve communicates the epicoele of this nonoculture pneumatic cylinder, the liquid outlet of this logic valve communicates high-order oil tank, the vertical installation of this check valve.