CN2249410Y

CN2249410Y - Mechanical secondary-impact-proof chatcher for rebounder

Info

Publication number: CN2249410Y
Application number: CN 95216383
Authority: CN
Inventors: 门志斌
Original assignee: CHENGDE CITY TEST-MACHINE GENERAL FACTORY HEBEI PROV
Current assignee: CHENGDE CITY TEST-MACHINE GENERAL FACTORY HEBEI PROV
Priority date: 1995-07-21
Filing date: 1995-07-21
Publication date: 1997-03-12
Anticipated expiration: 2005-07-21

Abstract

The utility model discloses a catcher for a falling impact tester, mainly comprising a guide sleeve support plate, a box body, a baffle plate and an operating mechanism. [The catcher for the falling impact tester is characterized in that the operating mechanism is composed of a half-ring recoiling rod and a counter-weight handle. The recoiling rod and the counter-weight handle are connected with the box body through a movable shaft. When a hammer falls and rebounds with stress, the half-ring recoiling rod causes the counter-weight handle to loss the balance because of friction and produce a force moment. The movable shaft operate the recoiling rod to drive the baffle plate to close to catch the hammer. The utility model has the advantages of no need of any energy sources, no need of the external control, accurate actions, 100% catching rate, simple structure, convenient installation and operation, etc.

Description

The anti-secondary pulse bounce-back of mechanical type falling bodies catcher

The utility model relates to a kind of anti-secondary pulse device, particularly relates to a kind of catcher of falling body type impact testing machine.

In the prior art, be used for the catcher of the anti-secondary pulse of various falling body type impact testing machines, adopt Electromagnetic Control or pneumatic control mostly, the motion by solenoid valve or pneumatic valve spool drives the secondary pulse of the closed falling bodies of realizing preventing rebounding of baffle plate.This device needs power supply even source of the gas and corresponding operation control system, cost height not only, and volume is big, but also has that noise is big, the part rapid wear, the problem such as waste time and energy, catch rate is low of regulating is installed.

Task of the present utility model is, a kind of mechanical type catcher that does not need any energy is provided, and it utilizes self structure just can reach the function of automatic seizure bounce-back falling bodies.

For solving above-mentioned task, the technical solution adopted in the utility model is: this device is made up of guide pin bushing supporting plate, casing, baffle plate and operating mechanism, casing and guide pin bushing supporting plate combine as a whole, baffle plate places on the guide pin bushing supporting plate, it is characterized in that operating mechanism is made up of recoil bar, counterweight handle and movable axis of semi-ring, semi-ring recoil bar and counterweight handle all are fixed on the movable axis, movable axis is connected on the casing, wherein an end of semi-ring recoil bar semi-ring and the maximum gauge of falling bodies leave very little gap, and an end of bar connects with baffle plate.

Principle of work of the present utility model is: utilize the characteristic of hammer body bounce-back back change perpendicular line, and friction operation mechanism when allowing hammer body upspring, thus drive the baffle plate closure, catch hammer body.Particularly, when vertically falling, hammer body pounds after stressed bounce-back on the sample, owing to hammer body rising perpendicular line can change the slight friction that the semi-ring that makes semi-ring recoil bar is subjected to hammer body to some extent, because semi-ring recoil bar and counterweight handle all are fixed on the movable axis, and before this, both are in equilibrium state, at this moment, because of the stressed destruction of balance of semi-ring, thereby produce following chain reaction: produce moment Yi Bian the counterweight handle is swung to, movable axis is rotated, handle the action of semi-ring recoil bar, drive baffle plate closure is caught the falling hammer body.Facts have proved that if do not rub semi-ring after hammer body rebounds, the perpendicular line change then can be bigger when falling after rise because of hammer body, also can run into semi-ring, can make the baffle plate closure equally, catches hammer body.

In order to make the baffle plate quick-make, between baffle plate and guide pin bushing supporting plate, rolling bearing is housed, to reduce friction.

In order to guarantee that counterweight handle and semi-ring recoil bar is in equilibrium state, is equipped with adjusting screw at counterweight handle and movable axis connection place.

Realize above-mentioned purpose, its operating mechanism can be one, also can be about two, the heavy handle of one of them not establishing of operating mechanism preferably, and two movable axis are connected the composition one with two sector gears engagements.

The utility model compared with prior art has following characteristics and progress:

1, without power supply source of the gas and control corresponding operating system.

2, cost is low, volume is little, easy to install, no consumable accessory.

3, do not need extraneous control and manually-operated, only just can achieve the goal by self structure.

4, move accurately and reliably catch rate 100%.

5, noiselessness.

Below in conjunction with accompanying drawing and preferred forms the utility model is described in detail.

Fig. 1 is the front view of this device, looks along the B-B portion of Fig. 2.

Fig. 2 is the vertical view of Fig. 1, analyses and observe along the A-A of Fig. 1.

Fig. 3 is the left view of Fig. 1, analyses and observe along the C-C of Fig. 1.

In the drawings, the 2nd, the guide pin bushing supporting plate also is the base plate of catcher, and it is connected on the guidepost (books do not draw) of testing machine, and the intermediate portion has the hole, and this hole is the passage of falling bodies, is again the closure place of baffle plate 3, is the key point of catching falling bodies.Casing 8 combines as a whole with guide pin bushing supporting plate 2.Baffle plate 3 is positioned on the guide pin bushing supporting plate 2, and its end is equipped with the hole, and in order to connect semi-ring recoil bar, in order to reduce the friction of baffle plate 3 and guide pin bushing supporting plate 2, correspondence has two grooves above the supporting plate 2 below baffle plate 3, rolling bearing is housed in the groove connects.About semi-ring recoil bar 4 is divided into two, be separately fixed on two movable axis 5, an end of its semi-ring and falling bodies 9 maximum directly through leaving very little gap can pass through when guaranteeing that falling bodies vertically fall for the first time smoothly, and the semi-ring that when rebounding, can rub; One end of its bar inserts in the hole of baffle plate 3.Movable axis 5 is connected on the bearing 6 of casing 8, wherein on an axle counterweight handle 10 is housed, and the effect of this handle is to make itself and semi-ring recoil bar 4 keep equilibrium state, and when balance is destroyed, produce moment, thereby drive the quick acting of semi-ring recoil bar.For the adjustment state, adjusting screw 11 is housed in counterweight handle 10 and movable axis 5 connection places.In order to guarantee two semi-ring recoil bar synchronization actions, the sector gear 12 that is meshed is housed on two movable axis 5.For neat appearance, get up with outer cover 7 covers on every side.

As above install, its course of work is, when hypophysis 9 is pounded after sample 1 stressed bounce-back by the semi-ring of two semi-ring recoil bars 4, the friction semi-ring is to making counterweight handle 10 out of trim force of labor squares, and by movable axis and two semi-rings recoils of sector gear drive bar, 4 synchronization actions, stir two baffle plates 3 respectively and close up, catch hammer body.

Claims

1, the anti-secondary pulse bounce-back of a kind of mechanical type falling bodies catcher, comprise guide pin bushing supporting plate (2), casing (8), baffle plate (3) and operating mechanism, casing (8) combines as a whole with guide pin bushing supporting plate (2), baffle plate places on the guide pin bushing supporting plate (2), it is characterized in that operating mechanism is by the semi-ring bar (4) that recoils, counterweight handle (10) and movable axis (5) are formed, semi-ring recoil bar (4) and counterweight handle (10) all are fixed on the movable axis (5), movable axis (5) is connected on the casing (8), one end of said semi-ring recoil bar (4) semi-ring and the maximum gauge of falling bodies leave very little gap, and an end of bar connects with baffle plate (3).

2, catcher according to claim 1 is characterized in that between baffle plate (3) and the guide pin bushing supporting plate (2) be that rolling bearing connects.

3, catcher according to claim 1 and 2 is characterized in that counterweight handle (10) advises axle (a 5) connection place that adjusting screw (11) is housed with living.

4, catcher according to claim 3, its spy is that operating mechanism is one.

5, catcher according to claim 3, it is characterized in that operating mechanism be about two.

6, catcher according to claim 5, available two sector gears of two movable axis (5) (12) connect about it is characterized in that.