FR2627234A3 - Gear-less drive for pump mechanism - has large diameter driven wheel with circumferential pushing members contacting receiver to transmit reciprocating drive - Google Patents

Abstract

The pump mechanism has a rotary portion (4) carrying a number of pushing members (1) equally spaced around its circumference. The push members are positioned to engage against a receiver member (2). The receiver is connected rigidly to the balance mechanism (5) of the pump, and drives it with a vertical reciprocating motion. The receiver member is formed by a pneumatic wheel to absorb the initial impacts of the pushing members. USE - Simple pump construction, e.g. for drive by animal traction etc.

Description

The present invention relates to an animal-drawn carousel and a pendulum control device ensuring the alternating vertical displacement of the pump piston housed in the cylinder, to a depth of a few tens of meters.

Merry-go-round pumps already exist, but they are generally composed of a robust hand pump, with rotary operation, whose pumping stroke is less than 0.3 m, and whose mechanism, comprising expensive gears, is '' purchase and maintenance.This mechanism ensures the transmission between 11 vertical shaft of the carousel and the horizontal shaft of the pump.

The present invention does not include any mechanism: a pusher linked to the vertical shaft of the merry-go-round moves a receiving element linked to the horizontal shaft of the pendulum; the connections can be elastic in order to attenuate the impact of the pusher when moving on the stationary receiver ; the pusher and the receiver can themselves be mounted elastically. All these elastic connections can cause kinematic variations in the pendulum trajectory, but these variations can be controlled and have no drawbacks.

Our merry-go-round is simple, robust, economical ... but it must @@ - badly activate various types of pumps and provide in each case the greatest possible flow, i.e. produce the piston rise as quickly as possible; this can be re-.

aliser by exerting, from the start of the race, the greatest acceleration compatible with the resistance of the elements concerned ... our arrangement does not control the kinematic characteristics; it controls and limits the forces exerted.

On the other hand, our "push-button" receiver allows us to adjust or transform our carousel to adapt it to various stroke pumps, or, with the same stroke, to modify the duration of the pumping cycle.

The provisions of the patent were chosen to allow a fairly large pumping stroke (0.7 to 1.5m approximately.), This arrangement, with a large stroke, allows greater flows in the same drilling diameter, but it it is also possible to carry out runs from 0.3 to 0.7m
Our merry-go-round produces, via the pendulum, the rise of the piston, but it has no action on the descent of this piston; this descent occurs under the effect of gravity, and, possibly, under the effect of devices complementary part of the "piston-cylinder delivery pipes" assembly. A complete "vertical-reciprocating" cycle of the pumping piston will be caused by two different actions: ascent controlled by armory and pendulum ...

 descent controlled by gravity and "possible supplement".

If the whole "armory-balance wheel is arranged to produce six round trips of the balance wheel per ride for the duration of one.

 "round trip" will be substantially constant; in this total "constant we can possibly reduce the time of" ascent "; this reduction will leave a longer time available for the descent which can be carried out completely;; we will thus obtain the maximum flow In our wmanège-pendulum arrangement we provide an equal duration for "ascent" and for "descent" by reserving the possibility of reducing the duration of "ascent" by a simple adjustment during testing. In our device this reduced action will always be possible .... it will result in a slight increase in the maximum effort between "pusher" and "receiver", but the total energy absorbed will remain theoretically constant and the work to be done for a ride - will remain constant subject that its inertia is sufficient.

The combination of "large pumping stroke" and the possibility of a longer duration for the "descent", linked to the "accelerated climb" will make it possible to obtain the greatest possible flow with the same pump. "free" descent will take less time for 12 free descents of I meter than for 24 free descents of 50 centimeters.

Regardless of the possibilities indicated above, the whole mechanism is arranged to avoid any risk of breakage or accident if the free descent is not completed by the time the climb must begin: it simply results in a reduction in the useful length of the race.

As previously indicated "... the connections can be elastic in order to attenuate the shock of the pusher.", But this shock can also be attenuated by "delaying" the effect of part of the total mass in movement. ..: this effect may only occur within a certain time after the initial shock.

The IVF.1 of board i / 3 is a front view showing the pendulum and part of the turntable, with a vertical axis which surmounts it. The tray carries, by radial arms, the pushers (1) (six pushers in the drawing); each pusher will push back the oscillating "receiver" (2), carried by the pendulum In the example of FIG.1 the "receiver is a single tire with pneumatic tire n able to support a load greater than 1000kg. FIG.2 , from plate 1 / T, represents, seen from above, the arrangement of the "armory-balance" assembly, In this FIG. 2 the pushers
(1) are maintained by the radial arms (3);; there are 6 radial arms, maintained by the superimposed discs (4). The six arms (3) are equidistant, by 6 angles of 60. carousel can include 3,4,5,6,7,8 pushers, or more ... always equidistant. The arms (3) can be removed, the arms will then be held by the discs (4). can act by their lower part, in "overhang", but this lower part can possibly be removed, the pushers (1) acting then by their central part, between the arms (3) or between the discs (4 It is then necessary that the spacing between the superimposed arms, or superimposed discs is sufficient so that the receiver (2) has no contact with the arms or discs during its oscillation. In the example of plate'1 / the pushers (1) are cylindrical, -from diameter 70 to 100mmenvir- .on / the external layer is fize. When pushing (1) on the receiver (2) there is a movement of -ripage resulting from the different this between the trajectories in contact with (1) and (2
This drawback disadvantage is greatly reduced when one of the el
contact elements has a degree of freedom in its contact surface. In example 1/3 the receiver is a wheel and it is not necessary to provide a possibility of rotation for the pusher. This possibility can be used for provisions of plate 2/3.

The FIGI of the board 1/5 shows, in (1 ') and (2') respectively the position of the pusher (1) and the position of the receiver
(2) at the end of the pendulum climb stroke; the corresponding positions of the end of the middle part of the pendulum are shown, FIG. 1, in (5) for the low position at the start of the race, in (5 ′) for the high position at the end of the course, the corresponding positions of the receiving wheel are shown, FIG. 1, in (?), corresponding to the low position of the balance, in (? ') corresponding to the high position of the balance. These positions are also represented in FIG. 2, plate 1/3, in the top view. To come from (1) to (1 ') the pusher describes the center circumference (6), (6) being on the vertical axis of rotation of the carousel. Your pusher (1) presses on the pneumatic wheel (2) whose axis can move along a circumference of horizontal axis (7). This plunger deforms the tire of the wheel (2) and causes the displacement and rotation of the wheel (2) until the position (2 ') of the wheel, the pusher being reached (2 '); from these positions the trajectories of (1) and (2) separate ;; (1) abandons (2) which returns to the initial position, driven by the descent of the balance (5 )
The shifting indicated on page 3, line 21 is exerted only by a slight vertical displacement on the pusher and its effect is attenuated by the swaying movement of (2) whose surface of whose tact on (l) moves during rotation of the wheel hub wheel (2) is supported by a fixed shaft (8) secured to the base (9) bolted to a plate (10) secured to the balance.

ha fixing by bolts of (8) to (9) made by 3 or 4 bolts, allows, before locking, a slight movement in the contact plane for possible adjustment of the position of (2). Independently of this possibility of adjustment we can reserve a low possibility of elastic displacement of (9) relative to (10) by interposing elastic washers between the heads of bolts or nuts and the bearing surfaces on (9) and (10).

This possibility of slight elastic displacement can be useful in position (2 '), the pusher being in (l'), in the exhaust position of its support on the wheel (2 '): a slight displacement of the spoke (S' ) - (6) can cause, by knockdown effect, between Cl ') - (6) and the radius of (2') passing through (1 ') a
very large effort which will be eliminated by a retreat of a few millimeters. A pneumatic wheel presents this possibility: the "elastic displacement will allow the pneumatic wheel to be replaced by an" elastic bandage ", or possibly by a" non elastic "metallic wheel.
The board ~ 2 / D presents, FIG.T, a partial front view of the pendulum and the carousel, FIG.4 a right view of the receiver assembly (2) FIG.5 a partial top view of the carousel and The pusher elements (1) are mounted cantilevered under the disc (4). The receiving element (2) comprises a spring (15) in large round wire formed hot and treated. This spring comprises.

two branches and a loop (12) which connects these two branches elastically. The two ends of the spring are folded (see FIG. 4) and fixed to the plate (8) by four fasteners (IO) bolted to this plate (8), board 2/3, plays the same support r81e as the fixed shaft (8) board 1/3. The large round spring wire (11) can be replaced by several smaller wires twisted together.

The loop (12) provides an elastic connection between the two branches of (11) and distributes forces and deformations between these two branches which can be applied together on (1) during part of the oscillation stroke of (8) and together withstand the deformation Until the end of the stroke. At the end of the oscillation stroke, when the pusher (1) comes to the position (11), it lets escape, from below, the spring and the plate come into position ( 2 '), thus allowing the balance (5) to return to the initial position. During the "push" stroke of (1) on (11) there is "friction" of the spring ## ##### (11 ) on the periphery, then on the base of the pusher (1) which may have, at its lower part, a rounded or a frustoconical part, to facilitate escape. The friction of (11) on (1) can be reduced by replacement of the fixed part of the tappets by a rotating part: for example a roller, fixed on a "ball bearing" hub present in FIG. 6 of the board 2/3; there would thus be, in this example, six push rollers, with a vertical axis, replacing the fixed cylindrical lifters with a vertical axis. By this replacement, friction will be considerably reduced: the friction stroke will be reduced, the roller being able to rotate to accompany the movement. 3 the exhaust is not done sideways, like plate 1/3 but from below: the exhaust results from the variation in the level of the receiver, it does not depend on the number of pushers. The example of plate 2 / 3 has six pushers; the same mechanism could be used for 7,8,9,10 or more pushers.

Plate 3/3 has, FIG. 7 vertical section, the rotating disks (4) of the arena, held by a spacer (14) fixed on the vertical shaft (6). This shaft rotates and is supported in the bearings and a The horizontal upper face of (14) supports a collar (15) which can rotate freely on the support (14) and around the shaft (6). On this collar (15) is fixed by stirrups or bolts a long bar (or tube) (16) carrying at one end the attachment of the coupling whose circulation circulation radius can be between 3 and 5m; the other end of this drive bar (16) will be of sufficient length, or weighted to approximately balance the weight of the coupling end. On the upper part of (15) rests a second collar (17) identical to (15 The collar (17) supports, by stirrup or bolts, a long bar or a tube similar to (16), this tube (18) carries, symmetrically, at each end, a mass of inertia "made of metal, concrete , or a container containing sand or water.

 The assembly (17), (18), and masses, possibly stiffened and guyed by central support on (17) will constitute the inertia assembly ", shown, in its central part, in top view, FIG. 8.In this FIG.8 the engine stopper "(19), fixed on the plate (4) receives the thrust from the drive bar" (16) and causes the rotation of the merry-go-round in the direction of rotation of the arrow (16) corresponding to the displacement of the coupling (possibly the mechanism could turn in the opposite direction by a symmetrical modification) If, for some reason, the animal of traction slows down or falls the merry-go-round continues on its run, but does not risk of immediately train the animal or injure it. If the carousel slows down after contact and impact of the pusher (1) on the "receiver" the inertia bar "(18) which is normally pushed by the engine stopper" (19) continues its course alone and comes "pushing the inertia stopper" (20), causing the rotation of the disc (4) and the carousel. This inertia bar "(18) exerts an effect of timed inertia accelerating the thrust exerted by the pusher (1) on the receiver (2). All the elements of these movements can be adjusted, by variation of the inertia effects of the rotating parts (adjustment of the masses and action radii) and by The stopper (20) can be adjusted by moving the fixing center on (4) and by eccentric mounting of its fixing axis. To reduce the instantaneous forces of metal-to-metal contact the contact surfaces of bars and stops can receive an elastic coating.

The moments of inertia of the drive bar and the inertia bar can be adjusted between certain limits; it is also possible to adjust the time delay by moving the inertia buffer. All these adjustments can only give results. approximate because the traction power of the animals is variable, as well as their own inertia ... nevertheless our device presents exceptional adjustment possibilities which do not exist in competing devices. But these adjustments, approximate, must be made exclusively by the installers or by maintenance services during checks or modifications to the coupling.

Claims (6)

CLAIMS.  1.Pumping station composed of a rotating part carrying several push buttons (1) equidistant, characterized in that, successively, each of the push buttons (1) acts, by initial shock and complementary push, on a single receiver (2) linked the pumping arm (5) which drives the pump in reciprocating vertical motion  2. Assembly according to 1, characterized in that the single receiver (2) is a pneumatic wheel whose elasticity attenuates the instantaneous contact with (1) and prolongs the pushing effect of (1).  3.Assembly according to 1 and 2 characterized in that the pneumatic wheel (2), mounted on base (G) and plate (10) with interposition of elastic washers can, in position (21), FIG.2, deviate slightly from the axis (6), facilitating the escape and the return to the initial position (2). This interposition of elastic washers can allow the replacement of the pneumatic wheel by a rubberized wheel or by a metal wheel.  4.Assembly according to 1, characterized in that the receiver (2) is a spring (11) comprising a loop (12) and characterized in that the exhaust't allowing the return of (2) - (11) - (12) in the initial position is done below and does not depend on the number of pushers (1).  5.Set according to and 4, characterized in that the fixed ssoirs (1) are replaced by rotary pushers: rollers shown in FIG. 6 board 2 / 3.This solution reduces friction, and the friction stroke of the spring (15) on (1).  6.Assembly according to 1 ~, 2; 3,4, or 5, characterized in that the rotating shaft (6) guides, above the spacer (14) two collars (15) and (17) supporting a power bar ( 16) and an inertia bar (n8) with adjustable stop (20); these provisions make it possible to attenuate the initial shock of (1) on (2) and to prolong the thrust on the receiver (2) after the initial shock of the push see (f).