JPS6340633A - Hammer striking together with each other - Google Patents

Abstract

PURPOSE:To improve the durability of a hammer and to miniaturize it by engaging each other the tip couple of a T-shaped arm fitting to a parallel fulcrum shaft and engaging the other arm couple with the piston rod of a hydraulic device and the sliding hammer member of a frame respectively. CONSTITUTION:T-shaped shift levers 2a, 2b are fitted freely rockably respectively to the parallel fulcrum shafts 1a, 1b of a frame F. A pair of arms b, b' thereof are engaged each other at a linking part 3, arm couple, c, c' are engaged with the piston rods 5, 5' of a hydraulic device 4 respectively by linking shafts 6, 6' and arm couple a, a' are engaged by fitting parts 10, 10' with hammer holder 8a, 8b with hammer members 9a, 9b striking together with each other sliding to a guide part (f). The shift levers 2a, 2b are regulated with a linking part 3 and rocked feeding an oil pressure from a liquid feeding pipe 7 and actuating the piston rods 5, 5', and actuate the hammer members 9a, 9b in the mutual opposition direction.

Description

Detailed Description of the Invention O Industrial Field of Application: This invention comprises a pair of mutually striking hammer members that reciprocate in a straight line along a guide formed in a frame, and is deformed by mutual impact of the hammer members. This is about a trading hammer that performs the following.

○ Conventional technology: Compared to the ffa hammer, in which the hammer member is reciprocated toward a fixed anvil, the mutual hammer has the same ability, has the same overall weight, and has a lower impact. It has the advantage that the construction of a foundation of 84 years can be reduced to about X-B.

Conventional reciprocating hammers connect upper and lower reciprocating hammer members that move vertically up and down through rollers installed at the top of the frame with steel cables or steel plate strips with 5mm relaxation springs at both ends. The upper bar of the lower hammer member was made to follow the descent (for example, the new edition of "Steel Handbook" edited by Japan Iron and Steel Institute, published by Maruzen Co., Ltd. 1962 2 J)
420 days 2nd edition 3rd printing published page 987.988 Figure 10
．． (See 36 pesos type hammer).

In order to simultaneously operate a pair of mutually striking hammer members that strike each other as described above, the conventional mutually striking hammer members are connected by a steel cable or steel plate strip equipped with a buffer spring, and are equipped with r'iT hardening properties. Because of the shortcomings of being susceptible to cracking, deformation, and breakage, the development of a more rigid and durable hammer has been delayed.

○Means for solving the problem: Therefore, the present invention provides a pair of fulcrum shafts whose axes are parallel to each other in the frame, and the -, ? The actuating levers of Ichibun/1 each integrally equipped with three arms in the shape of a letter L are swingably supported on the fulcrum shaft of l, and the tips of the medium arms of the pair of actuating levers face each other. and engage each other,
Both operating levers are connected through the central arm so as to simultaneously cause rocking, while fluid pressure is applied to one of the two arms that are connected in a straight line perpendicular to the fulcrum axis. The ends of the piston rods of the device are respectively engaged, and the other arm is respectively engaged with a pair of counter-striking hammer members slidably supported on the frame. To provide a mutually striking hammer # characterized in that the operating levers are simultaneously swung so that the faceted mutually striking hammer members strike each other (114).

0 action In the reciprocating hammer of the present invention configured as described above, the hammer members that strike each other are connected to a pair of actuating levers that are connected to each other via a central arm and are combined to perform rocking motions at the same time. Since the hammer members are connected to each other and driven by the connection of the rigid shafts, it is possible to eliminate the drawbacks of conventional devices in which the hammer members are connected by steel cables, steel plate strips, or the like.

○Example of implementation: Embodiments of the present invention will be described below with reference to the drawings.

In the figure, (F) is a box-shaped frame forming a cube.

(la) and (1b) are a pair of fulcrum shafts that are horizontally suspended in upper and lower levels in the central part of the frame (F) parallel to the front (left end surface in Figure 1), and whose axes are parallel to each other.

(2a) and (2b) are three -y-mu (a) and (a
), (b), (G), and (C) and (g) are integrally provided in a character shape, and are swingably supported by fulcrum shafts (1a) and (1b), respectively, and form a pair of upper and lower operating levers. +: (l'ri, formed at the tips of the central arms (b) and (d) of the pair of actuation levers (2a) and (2b), respectively, and ) to this central arm (b)
, (H) is a connecting portion provided so as to cause both to simultaneously swing. This connecting part (3) has central arms (b), (b) that face each other and engage with each other from above and below.
), a fitting part (3a) formed in a bifurcated shape at the tip of the lower arm (h), and a fitting part (3a) formed in a round shape along the horizontal axis direction at the tip of the upper arm (b). A fitting part (3b) that fits into (3a), a fitting part (3a), and a fitting part (3b)
It consists of a pair of slide shoes (3C) interposed between the central arm (
b) Eliminate mutual interference caused by rocking in (6). The above-mentioned Swiddon Yu (3C) has a curved part on the inner surface that contacts the roller-shaped side surface of the fitting part (3b) from the swinging force direction of the arm (b), and contacts the inner and outer surfaces of the fitting part (3a) from the inner surface. A left and right pair each having a concave outer surface are used as a pair. (4) refers to the two arms (a) and (a'
), (C), and (d) (upper and lower arms protruding toward the back) A fluid pressure device in which the axis is vertical between (C) and (Co). (151, l
ft is a connecting shaft that connects the tip of this piston rod (5), +5'+v, and the tip of one arm (C), (d) of 1) M.

Reference numeral 17) indicates three fluid supply/discharge pipes protruding from the rear side of the fluid pressure device (4), at both upper and lower ends and in the middle. These three fluid supply/discharge pipes (7) are respectively passed through the back frame (F') and received at 111111 so as to be able to slide freely in the horizontal direction, and are used to operate the fluid pressure device (4). There is a configuration for eliminating mutual interference caused by the swinging of the arms (C) and (a') following the movement of the arms (C) and (a'). (8a) and (8b) are hammer holders that engage the tips of the other arms (upper and lower arms extended from the operating levers (2a) and (2b) to the front side, respectively) (a) and (a'), respectively. , this hammer holder (8a), (
8b) is provided with one thorn on each side of the guide part (f) which is erected in a gate shape in front of the frame (F), so that it can be lowered freely, forming a pair of upper and lower parts, and facing each other. While attaching the reciprocating hammer members (9a) and (9b), inserts similar to the tips of the central arms (b) and (b') into the fitting parts (10) and (10') that open toward the rear of the +il. The tips (11) of the arms (a) and (a') are formed into a round shape.
, (+6) and by interposing two sets of slides/--aa, a6 above and below the tips (11), Oi, respectively, the swinging of each arm (a), (a') is achieved. 61 to eliminate mutual interference with the hammer holders (8a) and (8b).

This mutual hammer configured as described above is operated by connecting a pressure circuit (not shown) to the fluid supply/discharge pipe (7) of the fluid pressure device (4). Pressure circuit to fluid pressure device (4)
When pressure fluid is supplied to the center of the cylinder and fluid at both ends of the cylinder is simultaneously discharged from the upper and lower fluid supply and discharge pipes (7), the piston rods (5) and (5') protrude and the fulcrum shaft (1a
), (1b) as the fulcrum, the upper operating lever (2a)
At the same time, the lower operating lever (2b), which is located to the left in FIG. 1, swings to the right in the same diagram. As a result, the pair of upper and lower hammer holders (8a), (8b) approach each other, and at the extreme end, the mutually striking hammer members (9a), (9b) strike each other as shown in FIG. Also, when the pressure circuit is switched, the upper and lower operating levers (2a) and (2b)
are swung in opposite rotations to each other and are separated as shown in FIG.

This device repeatedly performs the following operations. Then, connect the pair of operating levers (2a) and (2b) to the connecting part (3).
The central arms (b), (b') connected to each other in the embodiment (2) shown in FIGS. ),
(2b) so as to give an even swing angle.

Next, Embodiment II shown in FIG.
(b') is formed with long and short lengths, and the pair of mutually striking hammer members (9a) and (9b) are connected to the arm (b).
, (b'), for example, by forming a removal amount that is inversely proportional to the ratio of the lengths of (b'),
) is formed into a large set 5k with a small stroke, and by reducing the weight (jl) with a large stroke on the relatively upper mutual hammer member (9a), it is configured so that the impact of the 14 members is combined. This is the case when

In general, striking hammers require a balanced impact. As shown in the example, when the hammer is of the upper and lower type,
If the acceleration of gravity is eliminated, the weight of the pair of opposing hammer members and the length of each arm of the pair of operating levers can be balanced by making them equal to each other, but the weight of the lower hammer member is increased and the weight of the upper hammer member is In some cases, it is advantageous in machining plains to make the member relatively lightweight and to increase the stroke. According to the invention, it is possible to do so very easily.

In the above-described embodiment II, the claw 1i1 of the lower hammer part (9b) is 10 t, and the upper hammer member (9a) is
In this example, the upper and lower operating levers (2a),
The distances from the fulcrum axes (1a) and (1b) of the central 7-arms (b) and (b') of (2b) to the substantial engagement connection points of both arms are A and B, respectively; Fulcrum shaft (1a), (I
The distance from b) to the center of the hammer is 1500mm, and the total workpiece of the mutual hammer is 21.00mm, and the height is 1500mm.
l 500mmA
B 2A : B A + B = 2100mm, so A + 2A = 3A = 2100mm A = 700mm B = 1400mm Then, the balance is achieved and the lower hammer member (
If the weight of 2b) is doubled compared to the upper side, the length of the central arm (a) of the upper UNI operating lever (2a) is halved compared to the lower side, so that a striking hammer with balanced impact can be created. Obtainable.

○Effects of invention.

According to the present invention, configured as described above and used as described above, a pair of mutually striking hammer members are each driven by a fluid pressure device and connected to a pair of actuating levers that repeatedly swing at the same time. Since it has a combination structure of rigid bodies, it can prevent stretching, deformation, and breakage that would occur with conventional devices that use flexible connecting members, and allows the use of highly durable mutual hammers. . and,
A mutual hammer member is connected to one end of the actuating lever with a fulcrum shaft interposed in the middle, and a fluid pressure device is attached to the curved end, allowing for a design that is resistant to uneven and b loads while maintaining the linear accuracy of the fluid pressure device. Easy design. Furthermore, the above M
By adopting the E-motion flavor, its elasticity cushions the impact during descent, making the entire device more compact, and improving workability due to the fact that the fluid pressure device and the hammer position fil are in opposite positions. is obtained, and the structure is also iYi
There are many advantages such as 'itli'.

[Brief explanation of drawings]

The drawings show embodiments of the present invention, and FIG. 1 shows embodiment I.
Partial longitudinal side view of. Figure 2 is a front view of the same as above. FIG. 3 is a partially cross-sectional plan view taken along the line x-x' of FIG. FIG. 4 is a partially cut-away side view showing the striking state of the hammer. FIG. 5 is a partially longitudinal side view (2) showing the hammer in a separated state. FIG. 6 is a partially longitudinal side view of Example II. (F)...Frame, (F')...Back frame,
(f)...Guide part, (1a), (lb)
---Fulcrum shaft, (2a), (2b) --- Actuation lever, (a) (a), (b) (b'), (C) (C'
)・-7-4, (:3)...Connection part, (3a)・
...Fitting part, (3b)...Fitting part, (3C)...
・Slide tour, 14)...Fluid pressure device, (5
), (5')...Piston rod, la), (6'
)...Connection shaft, (7)...Fluid supply and discharge pipe, (8a),
(8,b)...Hammer holder, (9a), (9b)-
・- mutual hammer member, (10), ++6+-...+
y joint, (11), ai) --- Arm (a), (a'
), 02, aj・-Slide Tsuyu-1A, B
...Length of central arms (b) and (b'). Figure 3 b + b

Claims (2)

[Claims] (1) A pair of fulcrum shafts whose axes are parallel to each other is provided on the frame, and a pair of operating levers each having three arms in a T-shape are swingably supported on the pair of fulcrum shafts. At the same time, the tips of the central arms of the pair of operating levers face each other and engage with each other, and are connected via the central arms so as to cause both operating levers to swing simultaneously, while the fulcrum shaft The ends of the piston rods of the fluid pressure device are respectively engaged with one arm of the two arms connected in a straight line orthogonal to the frame, and the other arm is slidably supported on the frame. A pair of mutually striking hammer members are engaged with each other, and the pair of actuating levers are simultaneously swung by the operation of the fluid pressure device, so that the mutually striking hammer members are struck against each other. . (2) Since the central arms of the pair of actuating levers have a length difference from the fulcrum shaft to their connecting portions, the strokes of the pair of mutually striking hammer members that strike each other are different. (speed difference) and a weight ratio inversely proportional to the length ratio of the central arm is formed in the pair of mutually striking hammer members, according to claim 1. .