38results about How to "Reliable force transmission" patented technology

In a method and an arrangement for the rapid connection and detachment of connectable elements (4, 6), particularly tubes or rods and/or driving elements and/or working elements capable of being fixed thereto such as, for instance, drill bits or the like, wherein an element (4) having a profiled end piece (9) is introduced into a respective reception opening (11) of the element (6) to be connected therewith and/or an intermediate or connection piece (7), particularly a bushing or sleeve, and connected with the second element (6) in a positive and force-transmitting manner, it is provided that, for the connection and detachment of the two elements (4, 6) to be connected, the profiled end piece (9) after a movement in the axial or connection direction (12) is rotated, by a partial region (15) of the reception opening (11) provided with a profile complementary to that of the end piece, relative to the reception opening (11) in a partial region (13) of the reception opening (11) having an enlarged clear cross section, and subsequently is again moved in the axial direction (12) into a further partial region (10) of the reception opening (11) provided with a profile complementary to that of the end piece (9), thus enabling rapid and simple connection and detachment at structurally simple expenses.

The invention discloses a U-shaped thin-wall steel-prestress reinforced concrete combined bent cap and thin-wall steel tube concrete pier node structure and a construction process. The structure comprises a U-shaped thin-wall steel-prestress reinforced concrete combined bent cap and a thin-wall steel tube concrete pier, when the thin-wall steel tube concrete pier and the U-shaped thin-wall steel-prestress reinforced concrete combined bent cap are connected, a connecting piece, an ear plate, a telescopic threaded steel tube, a platform beam, a telescopic steel rope and a hoop are arranged on the thin-wall steel tube concrete pier, the stability of the installation process is ensured, concrete is poured into a machined U-shaped thin-wall steel beam to form the the U-shaped thin-wall steel-prestress reinforced concrete combined bent cap, and when the concrete is solidified to the designed strength, the combined bent cap is formed by tensioning prestressed steel bars embedded in the concrete. According to the structure, the connection between the U-shaped thin-wall steel-prestress concrete combined bent cap and the steel tube concrete pier is reliable, installing is convenient, construction is simple, the seismic resistance and fire resistance are good, and the manufacturing cost is low.

In a device on a draw frame having a drafting system for textile fibre slivers with weighting of the upper rolls of the drafting system which comprises roll pairs arranged one behind the other, the pairs having lower and upper rolls, the rotating journals at the ends of the upper roll are mounted by means of bearing elements and the bearing elements each have at least one deep-groove ball bearing having an immovable outer housing (outer ring) and an internal rotational body (inner ring). In order to provide a structurally simple way in which the bearing housings can be mounted on or removed from the presser roll in a simple, quick and reliable manner, the bearing elements are in the form of deep-groove ball bearings and there is a coupling between the journal and the rotational body.

A furniture drive system includes a mechanical control unit having a pivotably mounted control arm for moving a movable furniture part, a spring device for applying force to the control arm, and a movably mounted control part having a transmission opening for transmitting a force from the spring device to the control arm. An electrical drive unit has an electric motor for moving the movable furniture part, and a driver to be driven by the electric motor for transmitting a torque of the electric motor to the mechanical control unit. The driver can be inserted into the transmission opening, and the electrical drive unit and the mechanical control unit are designed as separate assemblies and can be fastened to each other. A contact surface for the driver is arranged laterally adjacent to the transmission opening and the driver is preloaded toward the contact surface by a force store.

The present invention relates to a continuously variable transmission apparatus, which is characterized by comprising: an input shaft transferred with torque inputted from the outside; a plurality of driven gears which are arranged around the circumference of the input shaft as a certain phase difference and transferred with the power from the input shaft; a variable cam of which the turning radius can be varied by an external load; a variable input link which is coupled to and transferred with the torque of the input haft and allows the rotation thereof; a one-way clutch which is transferred undirectionally with the bidirectional torque to be transferred to the driven gears, respectively, and rotates the driven gears in one direction; a plurality of cam shafts which contact the one-way direction clutch internally or externally; and a plurality of output links, each of which one end revolves together with the variable cam around the center of rotation of the variable input link and the other ends of which are coupled to the cam shafts respectively and allow swiveling thereof.

In a device on a drafting system for textile fibre slivers with weighting of the upper rolls of the drafting system which comprises roll pairs arranged one behind the other, the pairs having lower and upper rolls, the rotating journals at the ends of the upper roll are mounted by means of bearing elements and the bearing elements each have at least one rolling-element bearing having an immovable outer housing (outer ring) and an internal rotational body (inner ring). In order to provide a structurally simple way in which the bearing housings can be mounted on or removed from the presser roll in a simple, quick and reliable manner, the bearing elements are in the form of rolling-element bearings and there is a coupling between the journal and the rotational body.

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The invention relates to a tool system (11) for a ground milling machine (1), in particular a road miller, a road recycler, a road stabilizer or a surface miner. The tool system (11) comprises: a milling bit (14) with a highly wear-resistant bit tip (17), in particular comprising PCD material, and a bit shaft (20) extending along a longitudinal axis (35); and a bit holder (29) with a shaft-receiving socket (26), wherein the bit shaft (20) of the milling bit (14) has at least one tapered section (23) that narrows in a direction running away from the bit tip (17). A securing device (19) is also provided, and is designed to draw the milling bit (14) along the longitudinal axis (35) of the latter away from the bit tip (17) into the shaft-receiving socket (26). The shaft-receiving socket (26) of the bit holder (29) are designed to be complementary to the bit shaft (20) of the milling bit (14) such that the tapered section (23), when interlocked with the securing device (19), lies in the shaft-receiving socket (26) against the bit holder (29) in a friction-locked manner. In addition, the bit holder (29) comprises a base holder (12) and an interchangeable holder (13). The base holder (12) comprises a holder-receiving socket (37) for receiving the interchangeable holder (13) and the interchangeable holder (13) comprises the shaft-receiving socket (26). The securing device (19) is designed such that it draws the milling bit (14) along the longitudinal axis (35) of the latter in a direction away from the bit tip (17) into the shaft-receiving socket (26) and also draws the interchangeable holder (13) into the holder-receiving socket (37) in the base holder (12). The invention also relates to a milling bit and to an interchangeable holder for the tool system and to a ground milling machine comprising the tool system.

The invention discloses a U-shaped thin-wall steel-prestress concrete combined bent cap and thin-wall steel tube concrete pier node structure and a construction process. The structure comprises a U-shaped thin-wall steel-prestress concrete combined bent cap and a thin-wall steel tube concrete pier, when the thin-wall steel tube concrete pier and the U-shaped thin-wall steel-prestress concrete combined bent cap are connected, a connecting piece, an ear plate, a telescopic threaded steel tube, a platform beam and a telescopic steel rope are arranged on the thin-wall steel tube concrete pier, thestability of the installation process is ensured, concrete is poured into a machined U-shaped thin-wall steel beam to form the the U-shaped thin-wall steel-prestress concrete combined bent cap, and when the concrete is solidified to the designed strength, the combined bent cap is formed by tensioning prestressed steel bars embedded in the concrete. According to the structure, the connection between the U-shaped thin-wall steel-prestress concrete combined bent cap and the steel tube concrete pier is reliable, installing is convenient, construction is simple, the seismic resistance and fire resistance are good, and the manufacturing cost is low.

The invention provides a rail fastening system for fastening at least one rail (2) to a rail substrate, preferably a solid travel path, which comprises: a rail support plate (1) arranged for holding the rail (2), wherein the rail (2) in the mounted state is in contact with the rail support plate and is fastened thereto by means of a rail mount (1a, 1b, 1c); a base plate (3) arranged for fasteningthe rail support plate (1) on the rail substrate, wherein the rail support plate (1) in the mounted state is fastened on the base plate (3) by way of one or more, preferably two, retaining elements (6) and the base plate (3) is in contact with the rail substrate; wherein the base plate (3) is of multi-part, preferably two-part, construction so that this is adjustable to different dimensions of therail support plate (1).

The invention relates to a bit holder for an earth working machine, in particular a road milling machine, having a support member onto which an insertion projection is indirectly or directly attached on an insertion projection side, the support member comprising two first and/or two second stripping surfaces that are at an angle to one another, and the support member having a working side that comprises a bit receptacle. In order to achieve a stable and long-lived configuration for such a bit holder, provision is made according to the present invention that the first and/or second stripping surfaces diverge from the insertion projection side toward the working side.

The invention relates to a mold-closing unit for an injection molding machine for processing plastics, comprising a mold-moving device for moving the movable mold support into and out of closure of an injection mold. At least one force transmission element is connected to the movable mold support and at its end remote from the movable mold support has a section (14a) which is assigned to the stationary mold support. The stationary mold support (10) is assigned a locking device (15) having a plurality of locking elements (70) which can be moved into interlocking operative connection with the actuatable section (14a). The locking device (15) has at least one actuator (16) which is movable in the closing direction (s-s) and on which, during movement of the actuator, the locking elements (70) are movable transversely to the closing direction (s-s) along a sliding block guide (60) in and out of an interlocking operative connection with the actuatable section (14a). The actuator is at the same time connected to at least one piston (18) of a piston-cylinder unit (17) for applying the closing force.