DE3024930A1 - Multiple toggle lever mechanism - has four four levers at regular intervals guided in grooves in parabolic cone - Google Patents

Abstract

The multiple toggle-lever mechanism acts as a thrust intensifier and has a parabolic cone in a concentric cylinder, moving four toggle-levers simultaneously into the extended position, without altering the primary thrust pressure. The four levers are at intervals of 90 deg. their thrust links(c) being secured in a common pneumatic piston (3), Their hinge links(a) work in guide grooves in the cone (2), and their base links(b) are fixed in the cylinder. Primary pressure in the axial direction on the cone causes intensification of the piston movement and thus compresses the air space (6) to a minimum. The base links form the static counterforce.

Description

Description and claims for application dated July 2, 1980

Title: Multivalent toggle lever system as a pressure booster.

Field of application: The invention relates to a multivalent toggle lever system as a pressure booster in a concentric cylinder by means of four toggle levers united in a common parabolic cone and this simultaneously with each linear stroke brings up to the approximate stretched position. From the axial primary pressure on the parabolic cone, which this transmits continuously and simultaneously to the four toggle levers due to the kinematic principle and according to the dimensional design the toggle lever achieved a multiplication of the input pressure through this. These Primary pressure multiplication mediates the pneumatic high pressure amplification that the piston in the compressed air chamber causes. This mode of operation ensures the highest Overall efficiency for areas of application in individual work processes but also as Component in machine groups, the Zochkraftdruck processes by means of pneumatic Have to cope with pressure intensification, or need a high power reserve for a short time.

Purpose: The invention aims with the kinematic multiplication axial primary pressures to provide greater output power without the energy-consuming Primarily having to increase pressures, and also the pneumatic ones in the same operation To increase the pressure in the compression cell many times over; this with the savings of additional external energy, whereby lower primary pressures are also sufficient to achieve high pressure gains.

State of the art: To generate linear drives, feeds, stand known linear motors are available which are electromotive or pneumatic and also operated hydraulically. These are different types of simple or double-acting cylinders; Positioners, press holders, swivel motors, in different Output size for different areas of application. Also pressure booster units as cascaded pneumatic cylinder with common Piston rods are known, but they often have a second medium with complex control mechanisms require. The known toggle lever systems are characterized by very low stroke lengths and mainly integrated into donostructures of pressing techniques - they are consistently one-sided process-oriented.

Task: The invention is based on the task of providing primary pressures with kinematic construction elements without additional external energy expenditure to be amplified many times over on larger strokes, so that the highest pneumatic Pressure intensification for use in individual work processes as well as in groups of machines with the best possible overall efficiency.

Solution: The solution to this problem is achieved by using the four - offset by 90 ° - toggle levers and their anchored in the common piston and at the same time linear pushing thrust joints as well as the knee joints in his Oemeinsafaen parabolic cones leading to grooves and bringing them approximately to the extended position In the kinematic principle, one acts on this cone in a concentric cylinder axial primary pressure is increased many times over. The ones fixed in the cylinder base The basic joints of the toggle levers form the static counterforce.

The pneumatic pressure boost takes place with the piston stroke in the Compressed air chamber, which narrows to form a compression cell Compressed air volumes compressed to a minimum and thus the pressure many times over is reinforced.

Another embodiment of the invention: The Eegel in parabolic form (with Guide grooves for the four close joints of the toggle levers) allow a longer one Stroke at primary pressure compared to straight cones; this results in a greater stretching length for the toggle levers tells what a higher pressure build-up in the Compressed air chamber has a very positive effect.

All moving parts of the inventive Druc werstarkers are from One to the other in connection with each other. Starting with a force application element on the primary pressure side, which mechanically applies its push-push force over the entire stroke length in the lower part of the parabolic cone introduces; then the parabolic cone, which is connected to the toggle levers via the knee joints in its guide grooves is and the piston with the four sliding joints anchored in it of the toggle lever.

he return process takes place during the pressure boosting process moving parts in a network. By applying the valve to (after the work process) The evacuated compressed air chamber becomes the piston as the volume of compressed air in it increases pushed back with the Xnie Hebel-Schubgeleniçe; at the same time give way the knee joints - with the support of the compression springs on the extended position reducers - from the approximate extended position, so that they have the parabolic cone in the guide grooves also force to the starting position; the cone pushes again on its part the force introduction element acted on it at the primary pressure up to the starting position back, with which every oeasegel mile continuously their new starting position and are ready to function again at the same time.

The paths of the individual components correspond to the Rückilol process those in the pressure intensification process in the opposite proportion. It is omitted otherwise common and often complex control mechanism and the associated time and expense.

Achievable Advantages: The multivalent on which the invention is based Toggle lever system as a pressure booster enables - corresponding to the kinematic Principle - due to its construction and the special shapes of its components the multiplication of primary pressures to high-performance pneumatic jerks for all corresponding areas of application without the use of additional ones, otherwise for Pressure intensification of necessary external energies. Because of the self-contained in this System achievable maximum pressures in the compression cell of the compressed air chamber can be expected from the beginning with much lower primary pressures, so that Part of the energy used to generate them can also be saved. The otherwise with pressure boosters not always sufficient forces for all tasks (due to the high performance demands) are generated according to the invention and made available. A pressure regulator is possible by lowering or increasing the primary pressure, as it is between The minimum and maximum pressure is necessary for each application; the kinematic Construction elements provide the prerequisite for this.

Description of an exemplary embodiment: An exemplary embodiment of the The invention is shown in the drawing and is described in more detail below. It shows drawing LG / XEKn.-S-79- & 0, a functional diagram of the multivalent toggle lever system as a pressure booster in start position. With (1) are the positions of three toggle levers (3.90 °) (the fourth - 3600 - is on the opposite side of the middle knee lever). The parabolic cone (2) takes in its upper narrow Part the knee joints (la) of the knee lever (1) in its guide grooves. At the insert the primary pressure (4), which takes place via a force application element, on the Cones (2) are moved over the knee joints (1a) as the stroke continues (due to the parabolic shape longer stroke path compared to straight cones) the four toggle levers (1) almost simultaneously (R = knee joint extended position reducer with compression spring) brought to extended position, that means: F-xposition for the base joints (1b) in the cylinder base (7a) and stroke for the thrust joints (1c), the piston (3) connected to them up to End of its stroke, with the force from the primary pressure being multiplied - according to the kinematic principle - lead. The piston (3) - (3a) piston stroke to compression end phase (3b) - sets the kinematic multiplication of the primary pressure in the compressed air chamber (6) pneumatically. The there now by compression in the Compression cell (6b) (Khmmer narrowing maximum) can multiply amplified compressed air Delivered directly to a consumer through the inlet / outlet valve (ota) or via a supply line will. The concentric cylinder housing (7) is via screw connections (5) or to be connected to the primary pressure side (4) by means of a flange (choice of user, how the cone (2) should receive the axial primary pressure).

The process of kinematic multiplication of the primary pressure test pressure amplification finds - as the drawing shows - in a closed system (1 - 7a) instead, peripheral disturbances can be avoided. The retrieval of the moving Parts are made by pressing the inlet-outlet valve (6a) on the evacuated Compression cell (6b) whereby the piston (3) during its backward movement by filling the chamber (6) with compressed air the toggle lever (1) again from the reduced (i.e. not total) extended position and the parabolic cone (2) in the simultaneous fourfold toggle lever return is forced back to the starting position. Here will possibly also the one between the cone (2) and the primary pressure side (4) Force introduction element with returned.

The starting position of the moving parts is therefore for further primary pressure boosting process taken.

Multivalent toggle lever system as pressure booster IG / MEn.-ES-79-80 Explanation of symbols: 1 = four knee levers (one covered 3600) a knee joint, b base joint, c sliding joint; 2 = parabolic cone (with grooved guide for the single lever knee joint); 3 = piston (with sliding joints Ic) aa-Eolbenhubweg to compression end phase-3b; 4 = primary pressure side (force introduction element); 5 = screw connections (possibly flange); 6 = compressed air chamber 6b compression point (chamber constriction maximum) for maximum pressure after kinematic primary pressure multiplication; 6a = inlet-outlet valve; 7 = cylinder housing R = extended position reducer with compression spring; 7a = base for base joints Ib.

Primary pressure direction / piston stroke direction in the pressure boosting process.

Claims (1)

Claims: Apber term:;? Ö.Multivalent toggle lever system as a pressure booster in a concentric cylinder by means of four toggle levers united in a common parabolic cone and this simultaneously with each linear stroke brings up to the approximate stretched position. From the axial primary pressure on the parabolic cone, which this transmits continuously and simultaneously to the four toggle levers due to the kinematic principle and according to the dimensional design the toggle lever achieves a multiplication of the inlet pressure through this. The primary pressure multiplication mediates the pneumatic high pressure amplification that the piston in the compressed air chamber causes. This mode of operation ensures the highest overall efficiency for areas of application in individual work processes but also as a component in machine groups, the high performance pressure processes have to cope with pneumatic pressure intensification, or a high one for a short time Need power reserve. Identifying part: characterized in that the four - offset by 900 - lever levers and their anchored in the common piston and at the same time linear pushing thrust joints as well as the knee joints in his Grooves leading and bringing these approximately to the extended position common parabolic cones in the kinematic principle in a concentric cylinder one acting on this cone axial primary pressure is increased many times over. The ones fixed in the cylinder base The base joints of the toggle levers form the static counterforce. The pneumatic pressure boost takes place with the piston stroke in the Compressed air chamber, which narrows to form a compression cell The volume of compressed air is compressed to a minimum, and thus the pressure many times over is reinforced. Generic term of the sub-claim: Nultivalent toggle lever system as Pressure intensifier according to claim 1. Characteristic part of the sub-claim: characterized, that the cone in the parabolic shape (with guide grooves for the four knee joints of the Toggle lever) allows a longer sub-travel at primary pressure compared to straight cones and thereby a greater stretching length for the toggle lever is achieved, which is good for a higher pressure capacity build-up in the compressed air chamber has a very positive effect. All moving parts of the pressure booster according to the invention are from one to the other in connection with each other. Starting with a force application element on the primary pressure side, that its pressure-thrust force mechanically over the entire stroke length in the lower part of the Introduces parabolic cone; then the parabolic cone, which over the knee joints in its guide grooves is in communication with the toggle levers and the piston with the in it four sliding joints anchored the toggle lever. As with the printing process, the return process takes place in the moving parts in a network. By applying the valve to (after the work process) The evacuated 3 compressed air chamber becomes the piston as the volume of compressed air in it increases pushed back while taking along the lever joint; at the same time they give way Knee steering - with the support of the compression springs on the stretching-reduction pieces - from the approximate extended position, so that they the parabolic Eegel in the guide grooves also force to the starting position; the cone in turn pushes itself the force introduction element acted on it at the primary pressure up to the starting position back, which means that all moving parts continuously return to their new starting position and are operational again at the same time. The paths of the individual components in the return process correspond to those in the pressure intensification process in the opposite direction Relationship. There is no need for an otherwise common and often complex control mechanism and the associated expenditure of time and money.