4results about How to "High precision installation" patented technology

The invention belongs to the technical field of positioning system installation, and discloses a cluster type cup cone positioning system and an installation method.The positioning system comprises an installation frame, a locking nut, a bottom plate positioning rod and a cup base positioning rod, the upper end of the bottom plate positioning rod and the upper end of the cup base positioning rod are connected with the installation frame, and the lower end of the bottom plate positioning rod is connected with a bottom plate of the cup cone positioning system; the cup cone positioning system is roughly positioned in the horizontal plane through light path guiding of the laser tracker, the lower end of the cup base positioning rod is connected with a cup base of the cup cone positioning system, and the cup cone positioning system is precisely positioned in the horizontal plane and in the plumb bob direction through light path guiding of the laser tracker. The problems that the operation process is time-consuming and labor-consuming, and the installation efficiency is extremely low are solved, the installation precision of the cup cone positioning system can be guaranteed, and the installation efficiency is high.

A windshield wiper device is provided that enables high-precision installation of retaining members in a short time. The wiper device includes: a first pivot and a second pivot connected to a wiper arm; a drive unit for rotating the first pivot; a connecting unit connected to the second pivot and the drive unit for synchronously rotating the two pivots; and a first retaining member and a second retaining member for securing each of the pivots to the vehicle body. The second retaining member includes: a body portion for rotatably supporting the second pivot; and three support portions protruding from the body portion. The first and third support portions include: a fixed portion secured by bolts; and a locking pin disposed on the fixed portion for engaging with the vehicle body.

The invention provides an open-spandrel girder arch triangular area installation device and a construction method thereof.The open-spandrel girder arch triangular area installation device comprises a girder arch, a main pier and two inclined supporting beams, transverse moving devices are arranged on the two sides of the girder arch, each transverse moving device comprises a hanging basket and a crown block system, each crown block system is installed on the top of the corresponding hanging basket and comprises a steel girder lifting appliance, and a cable bent tower is arranged on the top of the girder arch; a plurality of upper chord inhaul cables are arranged between the beam arch and the cable bent tower, and a plurality of lower chord inhaul cables are arranged between the main pier and the inclined supporting beam. The whole device can avoid the use of large hoisting equipment, greatly reduces the construction cost, solves the problem of lower chord diagonal bracing beam installation under the construction condition, and utilizes a hanging basket with an installed upper chord as a foundation to build a crown block system of the hanging basket for hoisting, so that the upper chord and the lower chord are synchronously constructed, and the construction efficiency is improved. The construction is convenient, the safety risk is low, and the construction period is shortened.

The application discloses a super-large linear motor adjustable stator support structure and relates to the field of super-large linear motor machine tools. The super-large linear motor adjustable stator support structure comprises a bed body, a T-shaped back plate provided on the bed body and used for mounting an external support, corresponding stators provided on the two sides of the T-shaped back plate, corresponding movers provided on the sides, away from each other, of the two stators, and corresponding adjusting bolts and fixing bolts respectively screwed on the T-shaped back plate. The T-shaped back plate is modularly integrated and dynamically adjusted with the special adjusting bolts and the fixing bolts, so that high-precision installation of the stators, self-adaptive compensation of gaps and magnetic attraction force offset can be realized, the width of the bottom transversely extending flange is convenient for mounting and fixing the external support, meanwhile, the bending deformation caused by the magnetic attraction force can be inhibited, and compared with the prior art, the stator support of the application can reduce the machining cost and the maintenance cost of the bed body, and improve the tolerance compatibility and the environmental adaptability.