摘要:
A solenoid valve battery includes in each case a solenoid valve (9), which exhibits coil contacts and can be constructed advantageously for the variation of the number of device components for the handling of connections and for cable assembly as well as with respect to its device size. A pluggable connector module (13) is furnished for the contacting of the protective grounded conductor (19), of the signal line, and of the neutral conductor (20). At least one protective grounded conductor (19) and/or a parallel running neutral conductor (20) are through-connected and running in the longitudinal extension direction (17) of the strip. The grounded conductor (19) and the neutral conductor (20) can be contacted by plugging the connector modules (13) together in longitudinal direction. A signal line (21) is furnished individually at each connector module (13) and includes a connector clamp (23) at an input (22) and a connection to the corresponding coil contact (20a) at an output (24).
摘要:
A working cylinder is described which features a cylinder of compact construction. The openings provided for the tension member can be very well sealed by simple means. The tension element features a cross-section having a continuous circumferential line. The size of the cylinder is also reduced through the use of a generally elliptical piston. The tension element is preferably comprised of several plastic tension strands encased in a jacket of plastic material which also has a generally elliptical cross-sectional shape.
摘要:
A compact fluid actuated working cylinder is disclosed having a cam driven by a piston via a flexible tension member. At the ends of the cylinder housing there are deflection pulleys for providing continuous tension for the tension member. The pulleys are each mounted on pulley supports which extend from secondary bores in the main cylinder housing. The pulley supports are spring loaded and urge the two pulleys away from the cylinder housing and each other. The pulley supports are preferably rectangular in cross-section to protect against torsion.
摘要:
A fluid controlled rotary shaft speed limiting arrangement has a brake disk secured to the shaft for rotational movement therewith. A braking arrangement exerts a braking force on the brake disk according to the amount of fluid pressure present in a brake piston chamber. The flow of pressurized fluid into and the flow of pressurized fluid out of the brake piston chamber is controlled by a valve arrangement, a portion of which is formed on the brake disk. The portion of the valve arrangement formed on the brake disk effects a change in the flow of pressurized fluid through the brake piston chamber if the rotational velocity of the shaft and brake disk varies from a preselected value. Such variation in the rotational velocity corresponds to such change in pressurized fluid flow such that, a proportional braking force is exerted on the brake disk.
摘要:
A multiway valve device in which a handle-operated ball member is operatively disposed in a spherical cavity to which a plurality of passages is connected. The ball member is arranged with a single seal ring that encloses a recessed area at one end of the ball that is sized to establish fluid pressure communication between a supply passage and one or the other of a pair of delivery passages depending upon the handle being located in an extreme right- or left-hand position. A vent passage opens into the spherical cavity in the area of the ball opposite the recessed area enclosed by the seal ring to exhaust pressure from whichever delivery passage is cut off from the supply passage. The spherical cavity lies partly in the body of the valve device and partly in a cover portion, which when secured to the body, rotatably supports the ball member. An annular recess or flattened region is formed on the surface of the ball member to increase the flow capacity of the vented delivery passage and to also permit removal of the ball, when the interface between the body and cover is offset from the center of the spherical cavity. By offsetting the body/cover interface, the larger area in which to accommodate all the passages within the body portion is provided without increasing the overall size of the valve device.
摘要:
A three-way valve device or the like having valving that is operably disposed within a bushing contained in the housing of the valve device, and a permanent magnet that is disposed in surrounding relationship with the bushing so as to be operable along the axial dimension thereof from an inactive position that is magnetically remote from a movable member of the valving to an active position that is in magnetic proximity with the movable valve member, to thereby shift the valve member and accordingly control fluid pressure communication between the valve porting with snap action. In one embodiment of the invention, the permanent magnet is operated by a push-button against the action of a spring, and in a second embodiment, the permanent magnet is encapsulated within a fluid-pressure-operated member subject to fluid pressure on it opposite sides.
摘要:
A piston-cylinder unit for pressure fluids includes a housing bounded by a head piece at each end thereof; a cylinder disposed within the housing; a piston reciprocatingly movable within the cylinder; a pulley having a circumferential outer surface is mounted for rotation about an axis within each of the head pieces; a pull belt is secured to the piston and looped around the outer surface of the pulleys; a power pick-up is attached to the pull belt; a braking device for the pull belt is disposed within the head piece and juxtaposed with at least one of the pulleys and has a shape which is complementary to at least a portion of the circumferential surface of the pulley; and a feed conduit connected to the head piece for feeding the pressure fluid to the braking device.
摘要:
A valve device and method for controlling the operation of the valve device, in particular a proportionally acting solenoid valve, consisting of a valve housing in which several pressure fluid chambers provided with pressure fluid connections are present, having two valves which are arranged within the valve housing and are providing with moveable valve members, the valve members being connected to a valve rod which serves for actuation.In order to simplify the construction of the valve, and provide reliable and reproducible detection and control of the valve opening cross section, two valves members (4, 5) and (12, 13) of the two valves are arranged coaxially and are jointly connected to a valve rod (20), actuatable simultaneously with it. A pressure fluid chamber is arranged between the valves. A permanent magnet (9) is arranged on or in the valve rod (20) for detecting the position of the valve rod in such a manner that the range of the displacement path produced by actuation of the valve rod lies within the pressure fluid chamber (10). A field sensor 29 extends through the valve housing wall into the corresponding pressure fluid chamber (10).
摘要:
A device is furnished for the connection of electrical contacts, in particular for solenoid valves disposed in rows, where the device includes mutually engaging contact pins. The following construction is advantageous for an arbitrarily large number of electrical users disposed in a row. Several successively disposed, fixed support bodies (2) are furnished for coaxially disposed contact pins (3). The coaxially disposed contact pins (3) can be electrically connected to each other. Rotor bodies (5) are rotatably supported between, in each case, successively disposed support bodies (2). Each rotor body (5) exhibits a contact projection (6), wherein the radial distance (7) of the contact projection (6) from the support-body center longitudinal axis (4) corresponds to the radial distance of the individual contact pins (3) from the support-body center longitudinal axis (4).
摘要:
A contactless proximity switch and mounting arrangement for determining the position of a movable member within a cylinder which has two end covers secured on the cylinder by means of a plurality of tie rods, includes a switch housing which secures to one of the tie rods. A contact opening formed in the switch housing has disposed therein, a switch having a pair of contacts and a permanent magnet disposed in a fixed manner. One pole of the permanent magnet is connected to a first contact, while the second pole is disposed in a contacting relation to the cylinder. A second contact is electrically coupled to the cylinder at a position a predetermined distance from where the second pole is disposed. As the movable member, which is constructed of a ferromagnetic material, nears the switch housing, the air gap between the second contact and second pole is bridged and the contacts close indicating the proximity of the movable member to the switch element. The entire proximity switch apparatus can be moved along the longitudinal axis of the cylinder.