CN2729034Y

CN2729034Y - Drop hammer lifting releasing mechanism

Info

Publication number: CN2729034Y
Application number: CN 200420107468
Authority: CN
Inventors: 魏燕定; 陈晋军
Original assignee: Zhejiang University ZJU
Current assignee: Zhejiang University ZJU
Priority date: 2004-10-19
Filing date: 2004-10-19
Publication date: 2005-09-28
Anticipated expiration: 2014-10-19

Abstract

The utility model discloses a drop hammer lifting releasing mechanism. An upper slide sleeve is arranged in a lifting frame; the inner wall of the lower end of the upper slide sleeve is provided with a ring shaped concave groove, and the interior of the upper slide sleeve is provided with a lower slide sleeve whose periphery of the inner wall of the lower end is provided with steel balls; the steel balls and the inner surface of the upper slide sleeve form a sliding fit; both end surfaces of the upper slide sleeve are respectively provided with the big ends of the drop hammer of the guide inclined plane, and the big ends of the drop hammer of the guide inclined plane are arranged in the lower slide sleeve; the shoulder surface of the lower table of each big end of the drop hammer is held on the steel balls on the periphery of the inner wall of the lower slide sleeve; a spring is provided between the upper and the lower slide sleeve; the outer side surface of the lifting frame is provided with a fixed plate connected with a screw nut on a screw rod matched with the complete machine. The grasping and the releasing of the impact drop hammer are respectively realized through the controlling for an electromagnet by a computer, and the danger brought by the breaking of the impacted material is avoided; the lifting of the drop hammer is completed through an electric machine and the screw rod, which is labor saving and smooth, and that the lifting height is controllable is realized through a code device; the grasping and releasing mechanism completes the grasping and releasing action through a small-sized electromagnet actuating mechanism, which is safe and reliable, and has low cost. The utility model can be suitable for the occasion that the weight is automatically controlled to be lifted and the grasped and put.

Description

The lifting releasing mechanism drops hammer

Technical field

The utility model relates to the lifting releasing mechanism that drops hammer in a kind of lifting percussion mechanism that drops hammer.

Background technology

Ballistic method realizes that the standard negative step force is to demarcate a step crucial in the force sensor system, it is to utilize impact to drop hammer to rise to certain altitude, discharge then drop hammer do the movement of falling object pound with hard brittle material that impact bar links to each other on, hard brittle material is ruptured suddenly, be subjected to the force gauge of predetermincd tension to be subjected to a negative step excitation power suddenly by load maintainer thereby make.In implementation procedure, require to impact to drop hammer steadily, have higher verticality, and set the hoisting depth that drops hammer, will take into full account the safety of operation simultaneously according to different force gauge ranges.

Design-calculated impacts the weight of dropping hammer generally tens to the hundreds of kilogram, therefore can not go the operation carrying by manual, and total system requires to be operated by the computer realization full automatic control.

Summary of the invention

Be suitable for lifting and the release that the computer controlled automatic operation is dropped hammer in order to satisfy, the purpose of this utility model is to provide a kind of lifting releasing mechanism that drops hammer, and it can will drop hammer according to survey sensor and rise to specified altitude assignment.

The technical scheme that its technical matters that solves the utility model adopts is to comprise: last, following two ends have in the raising legs of through hole, the baseplane is housed upwards, downward opening upper sliding sleeve, the inwall of upper sliding sleeve lower end has annular groove, the baseplane is housed upwards in the upper sliding sleeve, downward opening low sleeve, steel ball is housed around the inwall of low sleeve lower end, steel ball and upper sliding sleeve inside face form bearing fit, both ends of the surface all have the big end of dropping hammer of guiding surface to be contained in the low sleeve, the big end lower shoulder face holder of dropping hammer is on the steel ball around the low sleeve inwall, baseplane and low sleeve outer bottom interplanar are equipped with spring in the upper sliding sleeve, raising legs lower end and low sleeve open end are equipped with end cap, the raising legs lateral surface is equipped with adapter plate, and the nut on the supporting leading screw of adapter plate and complete machine is connected.

The useful effect that the utlity model has is:

1) impacts the extracting and the release of dropping hammer and all can realize that operating personal need not to operate at the scene like this, the danger that has brought when having avoided the impact material fracture by computer remote small-signal control electromagnet;

2) lifting is finished by motor and leading screw etc., and is laborsaving and steady, can realize that by coder hoisting depth is controlled;

3) guide rail adopts X rail form, has guaranteed to impact the whereabouts stationarity of dropping hammer;

4) extracting and releasing mechanism are to carry out a cover mechanism by a small electrical magnet to finish the pick-and-place action, and safe and reliable, cost is low.

The utility model can be widely applied to the occasion that needs automatic guidance lifting and pick-and-place weight.

Description of drawings

Fig. 1 is that the utility model is installed in the constructional drawing in the lifting percussion mechanism that drops hammer;

Fig. 2 is that the utility model drops hammer and promotes the constructional drawing of releasing mechanism.

Among Fig. 1: the 1-photoelectric encoder, 2-promotes motor, 3-synchronous pulley group, the 4-lifting releasing mechanism that drops hammer, the 5-nut, 6-drops hammer, the 7-leading screw.

Among Fig. 2: 4.1-raising legs, 4.2-upper sliding sleeve, 4.3-spring, 4.4-low sleeve, 4.5-steel ball, 4.6-cover plate, 4.7-mounting plate.

The specific embodiment

Below in conjunction with drawings and Examples the utility model is further specified.

As shown in Figure 2, the utility model comprises: last, following two ends have in the raising legs 4.1 of through hole, the baseplane is housed upwards, downward opening upper sliding sleeve 4.2, the inwall of upper sliding sleeve 4.2 lower ends has annular groove, the baseplane is housed upwards in the upper sliding sleeve 4.2, downward opening low sleeve 4.4, steel ball 4.5 is housed around the inwall of low sleeve 4.2 lower ends, steel ball 4.5 forms bearing fit with upper sliding sleeve 4.2 inside faces, both ends of the surface all have the 6 big ends that drop hammer of guiding surface to be contained in the low sleeve 4.4, drop hammer 6 big end lower shoulder face holder on the steel ball 4.5 around low sleeve 4.4 inwalls, baseplane and low sleeve 4.4 outer bottom interplanars are equipped with spring 4.3 in the upper sliding sleeve 4.2, raising legs 4.1 lower ends and low sleeve 4.4 open ends are equipped with end cap, raising legs 4.1 lateral surfaces are equipped with adapter plate 4.7, and the nut on the supporting leading screw of adapter plate 4.7 and complete machine is connected.

Shown in Figure 1, will drop hammer promotes releasing mechanism 4 and is contained in to drop hammer and promotes in the percussion mechanism, drops hammer to promote releasing mechanism 4 and hold to impact and drop hammer 6, promotes releasing mechanism 4 and leading screw 7 supporting nuts 5 and connects firmly mutually and drop hammer.Drive leading screw 7 rotations when promoting motor 2 by synchronous pulley group 3, drive nut 6 and move up and down, thereby drive 6 up-and-down movements that drop hammer.Drop hammer 6 hoisting depth by photoelectric encoder 1 record rotational pulse number, according to the pulse step pitch of having set and leading screw pitch promptly can be regarded as hoisting depth.

Guide rail adopts X rail form, and guarantees that verticality is better than 0.03mm/m, makes 6 four the side angle limits of dropping hammer have guidance quality preferably with the X rail like this, guarantees the impact 6 whereabouts stationarities of dropping hammer.

In conjunction with shown in Figure 2,6 the dispose procedure of dropping hammer is as follows: a tractive magnet is housed above raising legs 4.1, when it is switched on, during to upper sliding sleeve 4.2 effects one impulsive force F, because of upper sliding sleeve 4.2 moves downward, when its groove alignment steel ball 4.5, be hit drop hammer 6 extruding of steel ball 4.5 rolls in upper sliding sleeve 4.2 inboard wall grooves, drop hammer and 6 lean on the gravity free fall because of the support that loses steel ball 4.5, dropping hammer 6 discharges.Its extracting process is as follows: drop hammer 6 in foundation bottom this moment, nut 5 drive raising legss 4.1 by leading screw 7 move downward, in the time of on the steel ball on the low sleeve 4.4 4.5 is run into the handle that drops hammer, spring 4.3 will be compressed, this moment, low sleeve 4.4 continued upward movement with respect to raising legs 4.1, in steel ball 4.5 is pressed into the inboard wall groove of upper sliding sleeve 4.2, raising legs 4.1 continues to move downward, after the button bottom of dropping hammer surpasses inner wall groove, low sleeve 4.4 moves downward under the effect of spring 4.3 restoring forces, extruding steel ball 4.5 ejects in groove, be supported on the button lower position, this moment, raising legs 4.1 motion was cut off automatically by predefined travel switch, dropped hammer like this 6 will be supported by steel ball 4.5.Steel ball 4.5 diameters should be slightly larger than the low sleeve wall thickness in this device, and the perforate on the low sleeve 4.4 should have certain taper, in order to avoid steel ball 4.5 is extruded in the hole.Lifting weight is mainly by steel ball 4.5 quantity and steel ball 4.5 diameters and the decision of low sleeve 4.4 wall thickness dimensions ratio, but steel ball 4.5 diameters can not be too big with low sleeve 4.4 wall thickness dimensions ratio, otherwise can cause steel ball 4.5 extruding difficulties.

Claims

1, a kind of lifting releasing mechanism that drops hammer, it is characterized in that comprising: last, following two ends have in the raising legs (4.1) of through hole, the baseplane is housed upwards, downward opening upper sliding sleeve (4.2), the inwall of upper sliding sleeve (4.2) lower end has annular groove, the baseplane is housed upwards in the upper sliding sleeve (4.2), downward opening low sleeve (4.4), steel ball (4.5) is housed around the inwall of low sleeve (4.2) lower end, steel ball (4.5) forms bearing fit with upper sliding sleeve (4.2) inside face, both ends of the surface all have drop hammer (6) big end of guiding surface to be contained in the low sleeve (4.4), drop hammer on the steel ball (4.5) of big end lower shoulder face holder around low sleeve (4.4) inwall of (6), interior baseplane of upper sliding sleeve (4.2) and low sleeve (4.4) outer bottom interplanar are equipped with spring (4.3), raising legs (4.1) lower end and low sleeve (4.4) open end are equipped with end cap, raising legs (4.1) lateral surface is equipped with adapter plate (4.7), and the nut (5) on the supporting leading screw (7) of adapter plate (4.7) and complete machine is connected.