43results about How to "Small rise angle" patented technology

The invention discloses an excitation fluctuation precompressed multi-station compression moulding machine. Compression moulding units (1) are uniformly distributed and connected into a whole and are dragged by an intermittent mechanism (2) to carry out orderly transposition; a precompressed device (6) generates precompression under the compound effect of excitation and fluctuation; and a pressurizing device (7) converts the rotation of the power source into finalized compression moulding. Therefore, the compression moulding machine has the advantages that the machine overcomes the problems that the compression moulding is restricted by stroke and the compression moulding product has internal defects, the mechanical repeatability is uniform and reliable, the power distribution is reasonable and energy-saving, one machine has multifunction, multi-blocks can be generated by being pressed at one time and the compound compression moulding can be carried out.

The invention provides a road construction device capable of conducting dust fall. The road construction device is used for conducting grinding on the local protrusion on the construction road surface in the road construction process. The road construction device comprises an external shell (8), a motor (9) and a grinding head drive rod component (6) driven by the motor (9). The motor (9) is in power connection with a splined hole in a drive sleeve portion (61) of the grinding head drive rod component (6) in the axial direction in a slidable mode through a spline rod (91) fixedly connected with the motor (9). The drive sleeve portion (61) of the grinding head drive rod component (6) is fixedly connected with a grinding head mounting rod portion (62) of the grinding head drive rod component (6) through gradually contractile connection portions (612).

Intelligent road construction equipment is used for grinding local bulges on construction road surface during road construction, and comprises an external housing (8), a motor (9) and a grinding head drive lever member (6) driven by the motor (9), the motor (9) is in axial slidable power connection with a spline hole in a drive sleeve portion (61) of the grinding head drive lever member (6) by a fixedly connected spline rod (91), and the drive sleeve portion (61) of the grinding head drive lever member (6) is fixedly connected with a grinding head mounting rod portion (62) of the grinding head drive lever member (6) by a gradual contractile connecting portion (612).

The invention discloses a high-precision road construction device which is used for polishing local convex parts on a construction pavement during road construction. The device comprises an external casing (8), a motor (9) and a polishing head driving rod component (6) driven by the motor (9), wherein the motor (9) is in axial slidable power connection with a spline hole in a driving sleeve part (61) of the polishing head driving rod component (6) through a spline rod (91) fixedly connected with the motor; the driving sleeve part (61) of the polishing head driving rod component (6) is fixedly connected with a polishing head mounting rod part (62) of the polishing head driving rod component (6) through a gradual contraction connecting part (612).

An intelligent road construction device with good heat radiation is used for polishing local protrusions on a construction road surface during road construction and comprises an outer shell (8), a motor (9) and a polishing head drive rod component (6) driven by the motor (9). The motor (9) is in axial and slidable power connection with a spline hole in a drive sleeve portion (61) of the polishing head drive rod component (6) through a fixedly-connected spline rod (91). The drive sleeve portion (61) of the polishing head drive rod component (6) is fixedly connected with a polishing head mounting rod portion (62) of the polishing head drive rod component (6) through a gradual reducing connecting portion (612).

A dustproof road construction device is used for polishing local projections on a constructed pavement during road construction. The dustproof road construction device includes an outer shell (8), a motor (9) and a polishing head driving rod part (6) driven thereby. The motor (9) is connected to a spline hole in a driving sleeve part (61) of the polishing head driving rod part (6) through a fixedly-connected spline rod (91) in an axial-slidably power connection manner. The driving sleeve part (61) of the polishing head driving rod part (6) is fixedly connected to a polishing head mounting rod part (62) of the polishing head driving rod part (6) through a gradually-shrunk connection part (612).

Environmentally friendly road construction equipment is used for grinding local bulges on construction road surface during road construction, and comprises an external housing (8), a motor (9) and a grinding head drive lever member (6) driven by the motor (9), the motor (9) is in axial slidable power connection with a spline hole in a drive sleeve portion (61) of the grinding head drive lever member (6) by a fixedly connected spline rod (91), and the drive sleeve portion (61) of the grinding head drive lever member (6) is fixedly connected with a grinding head mounting rod portion (62) of the grinding head drive lever member (6) by a gradual contractile connecting portion (612).

The invention discloses a high-prestress large-ductility constant-resistance deformation yielding anchor cable for mine reinforcing. The high-prestress large-ductility constant-resistance deformation yielding anchor cable is characterized in that the cable is twisted by steel wires, a plurality of hollow yielding cage bodies are arranged on a cable body at intervals, and cavities of the yielding cage bodies are filled with press-in macromolecule filler. In the working process, the anchor cable is placed in an anchor cable hole, the head of the anchor cable is fixed at the bottom of the anchor cable hole through an anchoring agent, and an anchor cable tray and a lock are used for fixing the tail portion of the anchor cable on the roadway surface outside an anchor cable hole opening. When surrounding rock of a roadway is subjected to breaking and expanding deformation, the cage bodies can be yielded by the anchor cable through shrinkage, and the length of the anchor cable is increased for yielding. Compared with the prior art, the high-prestress large-ductility constant-resistance deformation yielding anchor cable is simple and easy to implement, easy to construct and capable of effectively releasing rock stratum pressure.

The invention provides a road construction device capable of conducting dust fall. The road construction device is used for conducting grinding on the local protrusion on the construction road surface in the road construction process. The road construction device comprises an external shell (8), a motor (9) and a grinding head drive rod component (6) driven by the motor (9). The motor (9) is in power connection with a splined hole in a drive sleeve portion (61) of the grinding head drive rod component (6) in the axial direction in a slidable mode through a spline rod (91) fixedly connected with the motor (9). The drive sleeve portion (61) of the grinding head drive rod component (6) is fixedly connected with a grinding head mounting rod portion (62) of the grinding head drive rod component (6) through gradually contractile connection portions (612).

The invention provides a speed-adjustable hole digging machine using solar power generation for power supply. The hole digging machine comprises an outer casing (8), a driving motor (9) and a hole digging drill pipe component (6), wherein the hole digging drill pipe component (6) is driven by the driving motor (9); the top of the outer casing (8) is provided with a solar panel (15); the driving motor (9) is arranged in the outer casing (8) and is electrically connected with the solar panel (15); a storage battery (16) is connected between the solar panel (15) and the driving motor (9) and is fixed in the outer casing (8); the solar panel (15) is used for converting solar energy into electric energy to be stored in the storage battery (16) and to be used for power supply for the driving motor (9); an electronic control device (14) is arranged on a case of the driving motor (9) and is electrically connected with the driving motor (9); and the electronic control device (14) is used for controlling and adjusting the rotating speed of the driving motor (9).

A road construction device provided with an alarm light is used for polishing local projections on a pavement being constructed during road construction. The device includes an outer shell (8), a motor (9), and a polishing head driving rod part (6) driven by the motor, wherein the motor (9) is connected to a spline hole in a driving sleeve part (61) of the polishing head driving rod part (6) through a fixedly-connected spline rod (91) in an axial and slidable powered manner. The driving sleeve part (61) of the polishing head driving rod part (6) is fixedly connected to a polishing head mounting rod part (62) on the polishing head driving rod part (6) through a gradually shrunk connection part (612).

The invention discloses a central shaft of a continuously variable transmission of a snowmobile. A fixed disc (2) is fixed on one end of the central shaft (1); the central shaft (1) is a hollow shaft which is provided with an axial through hole; and an engine output shaft mounting hole is arranged along the axial line of the central shaft. The central shaft of the continuously variable transmission of the snowmobile is characterized in that: the engine output shaft mounting hole is formed by a taper hole (1a) and a screwed hole (1b) which are jointed; the large end of the taper hole (1a) is connected with the end surface of the end, which is provided with the fixed disc, of the central shaft (1); and the screwed hole (1b) is a fine-thread screwed hole. The central shaft of the continuously variable transmission of the snowmobile can ensure the concentricity and balance of the engine output shaft and a driving wheel of the continuously variable transmission and reduce the vibration during the running so as to effectively ensure the working performances of the engine and the continuously variable transmission of the snowmobile.

The invention discloses a hole digging machine with an adjustable hole digging speed. The hole digging machine comprises an external shell (8), a driving motor (9) and a hole digging drill rod assembly (6). The hole digging drill rod assembly (6) can be driven by the driving motor (9), the driving motor (9) is arranged in the external shell (8), an electronic control device (14) is arranged on a shell of the driving motor (9), is electrically connected with the driving motor (9) and is used for controlling and regulating the rotational speed of the driving motor (9), the driving motor (9) is axially slidably in power connection with a spline hole in a driving sleeve (61) of the hole digging drill rod assembly (6) by a fixedly connected spline rod (91), and the driving sleeve (61) of the hole digging drill rod assembly (6) is fixedly connected with a drill rod (62) of the hole digging drill rod assembly (6) by a gradually reducing connecting portion (612).

A road construction device capable of utilizing an induction fan for efficiently dissipating heat is used for polishing a local protrusion on a construction road surface when a road is constructed and comprises an external shell (8), a motor (9) and a polishing head driving rod component (6) driven by the motor (9). The motor (9) is in power connection with spline holes in a driving sleeve portion (61) of the polishing head driving rod component (6) through fixedly-connected spline rods (91) in an axial sliding manner; and the driving sleeve portion (61) of the polishing head driving component is fixedly connected with a polishing head mounting rod portion (62) of the polishing head driving rod component (6) through a gradually-contracting connecting portion (612).

A road construction device capable of utilizing an induction fan for efficiently dissipating heat is used for polishing a local protrusion on a construction road surface when a road is constructed and comprises an external shell (8), a motor (9) and a polishing head driving rod component (6) driven by the motor (9). The motor (9) is in power connection with spline holes in a driving sleeve portion (61) of the polishing head driving rod component (6) through fixedly-connected spline rods (91) in an axial sliding manner; and the driving sleeve portion (61) of the polishing head driving component is fixedly connected with a polishing head mounting rod portion (62) of the polishing head driving rod component (6) through a gradually-contracting connecting portion (612).

The invention provides a road construction device improving the service life. The road construction device improving the service life is used for conducting polishing on local protrusions on a construction road surface in road construction. The road construction device improving the service life comprises an external shell (8), a motor (9) and a polishing head driving rod component (6) driven by the motor (9), wherein the motor (9) is in power connection with a splined hole in a driving sleeve portion (61) of the polishing head driving rod component (6) in a mode capable of sliding through a fixedly connected spline rod (91), and the driving sleeve portion (61) of the polishing head driving rod component (6) is fixedly connected with a polishing head installing rod portion (62) of the polishing head driving rod component (6) through a gradually-contracting connection portion (612).

The invention provides an internal combustion engine assembly piston (1), which is composed of an upper part (4) with a combustion chamber (8) and a lower part (5) screwed to the upper part by a screw (6), the screw (6) The axis is collinear with the piston axis (31). The screw (6) is formed as a threaded pin comprising a hexagon socket (6') on the inner side of the piston and a head (6") on the top side of the piston, wherein the head (6") constitutes A part of the bottom of the combustion chamber (8) and is flush with the bottom of the combustion chamber (8) in a tightened state.

Road construction equipment with adjustable grinding speed is used for grinding local bulges on construction road surface during road construction, and comprises an external housing (8), a motor (9) and a grinding head drive lever member (6) driven by the motor (9), the motor (9) is in axial slidable power connection with a spline hole in a drive sleeve portion (61) of the grinding head drive lever member (6) by a fixedly connected spline rod (91), and the drive sleeve portion (61) of the grinding head drive lever member (6) is fixedly connected with a grinding head mounting rod portion (62) of the grinding head drive lever member (6) by a gradual contractile connecting portion (612).

A shock-absorbing road construction device, used for grinding local protrusions on the construction road surface during road construction, comprising an external casing (8), a motor (9) and a grinding head driven by the motor (9) The drive rod part (6), wherein the motor (9) is fixedly coupled with the spline hole shaft in the drive sleeve part (61) of the grinding head drive rod part (6) through a spline rod (91) To slidable power connection, the driving sleeve part (61) of the grinding head driving rod part (6) is connected with the grinding head installation rod part ( 62) Fixed connection.

The invention discloses a high-precision road construction device which is used for polishing local convex parts on a construction pavement during road construction. The device comprises an external casing (8), a motor (9) and a polishing head driving rod component (6) driven by the motor (9), wherein the motor (9) is in axial slidable power connection with a spline hole in a driving sleeve part (61) of the polishing head driving rod component (6) through a spline rod (91) fixedly connected with the motor; the driving sleeve part (61) of the polishing head driving rod component (6) is fixedly connected with a polishing head mounting rod part (62) of the polishing head driving rod component (6) through a gradual contraction connecting part (612).