37results about How to "Improve installation conditions" patented technology

A drive system for individually driving two wheels of a drive wheel pair of a vehicle. The drive system has two infinitely variable transmission drives which are drivingly connected, via a transmission arrangement, to an associated drive wheel. Each transmission arrangement includes two transmission units arranged one behind the other, with one of the transmission units preferably being a two-stage shiftable transmission and the other transmission unit being a bevel gear transmission. The shiftable transmission makes it possible to vary the drive transmission ratio. The bevel gear transmission makes it possible to arrange the transmission drives so that their drive shafts are at right angles to the rotational axis of the drive wheel pairs.

The invention provides a design method of a cross cylindrical roller bearing with two right-angle roller paths. An outer ring (1) is designed in an integral structure by a split type dual-half structure. The outer ring comprises two right-angle roller paths, an outer mounting hole (1.1), an outer hoisting thread hole (1.2), a lubricating oil hole (1.3), a plunger (6) and a conical pin (7). An inner ring comprises two right-angle roller paths, an inner mounting hole (2.1) and an inner hoisting thread hole (2.2). A cylinder roller (3) and an isolation block (5) are configured in the corresponding roller paths of the inner ring and the outer ring. Sealing is carried out through a sealing assembly (4), so that the problems of a plurality of machining processes, poor mounting condition, poor sealing, no lubrication and the like in a cross cylindrical roller bearing with a single roller path can be solved. Therefore, the axial bearing force and the overturn moment can be ensured, and simultaneously the radial bearing force is greatly improved.

Heat exchanger comprises a heat exchange block (2) having tubes (5) with tube ends and ribs (6) arranged between the tubes, and lateral collecting boxes (3, 4) for introducing and removing a medium. One of the collecting boxes has a base with openings for receiving the tube ends, a lid and an inlet support (7) and an outlet support (11). The collecting boxes are made by partially hydroforming a metallic semi-finished material. Preferred Features: The semi-finished material is a rolled aluminum sheet. The base, lid and supports are made in one-piece by hydroforming. The semi-finished material is an extruded aluminum tube. The collecting boxes are less than 5 mm, preferably less than 4 mm thick.

The invention provides a method and tool for mounting a brake system pipeline of an aluminum alloy vehicle. The method comprises the following steps of: manufacturing the tool; arranging pipe clamp anchors on pipe clamp anchor brackets respectively and fastening; arranging pipe clamps on the pipe clamp anchors according to a requirement; connecting the brake system pipeline and contacting end parts of the brake system pipeline with positioning baffle plates; fixing the brake system pipeline on the pipe clamp anchors by using the pipe clamps; performing wind pressure test on the brake system pipeline to check the airtightness of the pipeline; disassembling a whole body which consists of the pipe clamp anchors, the pipe clamps and the brake system pipeline from the pipe clamp anchor brackets; and hoisting the whole body to the bottom of the aluminum alloy vehicle. By the technical scheme, the brake system pipeline can be preassembled on the ground, the overall pipeline can be assembled into a module which is completely matched with a chassis of a vehicle by using the pipe clamps and the pipe clamp anchors, and the module is hoisted to a hoisting position of a frame. The method is easy to operate and high in mounting efficiency.

The invention discloses an I-type impact air flow attenuator. The I-type impact air flow attenuator comprises an air flow buffering cavity, wherein an air inlet pipe and an air outlet pipe which are communicated with an inner cavity of the air flow buffering cavity are arranged at the two ends of the air flow buffering cavity; straight pipe sections of an emptying pipeline are communicated by the air inlet pipe and the air outlet pipe on the air flow buffering cavity; the air inlet pipe and the air outlet pipe on are arranged on a same straight line and are distributed in an I shape in the air flow buffering cavity. According to the I-type impact air flow attenuator, the properties of impact air flow and the emptying pipeline are considered comprehensively, basic principles of an interference type air flow buffer, a porous plate and a pore plate acoustic filter are integrated and extraction flow requirements of the emptying pipeline and the dynamic property of the impact air flow are considered comprehensively; the I-type impact air flow attenuator can be mounted on the straight pipe sections of the emptying pipeline outside a safety valve horizontally or vertically; the air flow buffering cavity is arranged, and the turning parts of the emptying pipeline are communicated by the air inlet pipe and the air outlet pipe on the air flow buffering cavity, so as to realize the effects of dissipating the energy of the impact air flow, reducing a coupling effect of the pipelines and guaranteeing the requirements of extraction flow.