CN-119501543-B - Belt pulley assembling equipment for power steering oil pump

CN119501543BCN 119501543 BCN119501543 BCN 119501543BCN-119501543-B

Abstract

The invention discloses a power steering oil pump belt pulley assembly device which comprises a pull rod, a positioning seat, a positioning sleeve and a driving device, wherein the pull rod is used for being connected with a pump shaft of a power steering oil pump, the positioning seat is used for placing the belt pulley, the positioning sleeve is arranged on the positioning seat and enables the belt pulley and the pump shaft of the power steering oil pump to be in a coaxial state, the driving device is connected with the pull rod, the positioning sleeve is arranged on the pull rod in a sleeved mode, and the driving device is used for controlling the pull rod to linearly move along a set direction, so that the pump shaft of the power steering oil pump is inserted into a central hole of the belt pulley. The belt pulley assembly equipment for the power steering oil pump can ensure that the belt pulley is not inclined or extruded in the process of being installed in a pump shaft, can improve the assembly effect of the power steering oil pump and the belt pulley of a hydraulic power steering system, and can improve the assembly efficiency.

Inventors

XIE JINGBO
LU JIAWEN
ZHAI QIANG
LIU TAO
CHEN LONGYU

Assignees

安徽德孚转向系统股份有限公司

Dates

Publication Date: 20260508
Application Date: 20241128

Claims (1)

1. The power steering oil pump belt pulley assembly equipment is characterized by comprising a pull rod, a positioning seat, a positioning sleeve and a driving device, wherein the pull rod is used for being connected with a pump shaft of a power steering oil pump, the positioning seat is used for placing the belt pulley, the positioning sleeve is arranged on the positioning seat and enables the belt pulley and the pump shaft of the power steering oil pump to be in a coaxial state, the driving device is connected with the pull rod, the positioning sleeve is sleeved on the pull rod, and the driving device is used for controlling the pull rod to linearly move along a set direction, so that the pump shaft of the power steering oil pump is inserted into a central hole of the belt pulley; The center of the positioning base is provided with positioning outer circle steps which are inserted into the center holes arranged on the rack panel, the center of the positioning base is provided with positioning outer circle steps which are inserted into the center holes arranged on the positioning base, the positioning base is fixedly locked on the positioning base through first bolts, the number of the first bolts is 4, the center of the positioning sleeve is provided with positioning outer circle steps, and the positioning outer circle steps are inserted into the center holes arranged on the positioning base without locking; The pull rod is in threaded connection with the pump shaft of the power steering oil pump, the upper end of the pull rod is provided with external threads, the pull rod penetrates through the central hole of the positioning sleeve and is matched with the positioning sleeve; The driving device comprises a driving motor, a power transmission mechanism connected with the driving motor and a sliding plate connected with the power transmission mechanism, wherein the sliding plate is connected with a fixed base, and the fixed base is connected with a pull rod; the lower end of the pull rod is in threaded connection with the fixed base, and an external thread is arranged at the lower end of the pull rod; the power transmission mechanism comprises a first transmission mechanism connected with the driving motor and a second transmission mechanism connected with the first transmission mechanism, and the sliding plate is connected with the second transmission mechanism; The screw guide rail is in screw transmission with the screw rod, the screw rod guide rail is connected with the guide rail frame, the guide rail frame is fixedly connected with the upper sliding plate, the screw rod is vertically arranged, the lower end of the screw rod is connected with the output end of the first transmission mechanism, and the first transmission mechanism transmits power to the screw rod; the sliding plate is arranged below the rack panel, the sliding rail penetrates through the sliding plate, the sliding rail plays a role in guiding the sliding plate, and the sliding plate can slide up and down along the sliding rail; the lower end of the fixed base is fixedly locked on the sliding plate through a second bolt, 4 second bolts are arranged, the guide rail frame is fixedly locked with the sliding plate through a first bolt, and a threaded hole is arranged below the sliding plate; The positioning plate is provided with two overhanging plates, the overhanging plates are fixedly connected with the positioning plate through first bolts, a motor positioning bottom plate is arranged below the overhanging plates, the overhanging plates are fixedly connected with a driving motor through first bolts, the shaft ends of the driving motor penetrate through the motor positioning bottom plate and then are connected with a driving pulley through first bolts, locking blocks are fixedly connected with the motor positioning bottom plate through first bolts, two locking bolts are arranged on the locking blocks at positions corresponding to the overhanging plates and penetrate through the locking blocks to be propped against the right sides of the two overhanging plates, two sections of long grooves capable of moving left and right are arranged on the motor positioning bottom plate, a first bolt and a flat pad are arranged in the long grooves and are connected with the overhanging plates, the tension of a belt is regulated through rotating the locking bolts, and the first bolts below the motor positioning bottom plate are locked after regulation is completed.

Description

Belt pulley assembling equipment for power steering oil pump Technical Field The invention belongs to the technical field of vehicle steering systems, and particularly relates to a power steering oil pump belt pulley assembly device. Background The power steering oil pump is used as a power source of the hydraulic power steering system, has the advantages of compact structure, uniform flow, high volumetric efficiency, low noise, stable operation and the like, and is always used until now, and the driving force for the working of the steering oil pump is mainly obtained through the belt connection between the belt pulley and the engine belt pulley; The existing belt pulley assembling tool is assembled by a double-column hydraulic machine, a lower station fixing belt pulley device and an upper station pump shaft pulling device are arranged, and the following problems exist: 1. The upper station device and the lower station device are not coaxial, the belt pulley is easy to incline in the process of being installed in the pump shaft, so that the belt pulley is seriously extruded close to one side, and the appearance of the oil pump assembly is influenced; 2. the pulley is assembled with a pull rod and a rod is universal, the gap between the pull rod and the pump shaft section of the pulley is large, the pull rod is easy to break, and the assembly efficiency is affected. It is desirable to provide an improved power steering oil pump pulley assembly apparatus, particularly with respect to how to enhance the assembly of the power steering oil pump and pulley of a hydraulic steering assist system. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides a belt pulley assembling device for a power steering oil pump, and aims to improve the assembling effect of the power steering oil pump and a belt pulley of a hydraulic steering power assisting system. In order to achieve the purpose, the technical scheme includes that the power steering oil pump belt pulley assembly equipment comprises a pull rod, a positioning seat, a positioning sleeve and a driving device, wherein the pull rod is used for being connected with a pump shaft of a power steering oil pump, the positioning seat is used for placing the belt pulley, the positioning sleeve is arranged on the positioning seat and enables the belt pulley and the pump shaft of the power steering oil pump to be in a coaxial state, the driving device is connected with the pull rod, the positioning sleeve is arranged on the pull rod in a sleeved mode, and the driving device is used for controlling the pull rod to linearly move along a set direction, so that the pump shaft of the power steering oil pump is inserted into a center hole of the belt pulley. The pull rod is in threaded connection with the pump shaft of the power steering oil pump, and external threads are arranged at the upper end of the pull rod. The power steering oil pump belt pulley assembly equipment also comprises a positioning base, and the positioning base is installed on the positioning base through a first bolt. The power steering oil pump belt pulley assembly equipment also comprises a rack panel, the positioning base is arranged on the rack panel, the pull rod penetrates through the center hole of the positioning base, and the driving device is positioned below the rack panel. The driving device comprises a driving motor, a power transmission mechanism connected with the driving motor and a sliding plate connected with the power transmission mechanism, wherein the sliding plate is connected with a fixed base, and the fixed base is connected with the pull rod. The power transmission mechanism comprises a first transmission mechanism connected with the driving motor and a second transmission mechanism connected with the first transmission mechanism, and the sliding plate is connected with the second transmission mechanism. The second transmission mechanism comprises a screw, a screw guide rail matched with the screw and a guide rail frame connected with the screw guide rail, and the sliding plate is connected with the guide rail frame. The lead screw is arranged on the positioning plate, a sliding rail is arranged on the positioning plate, and the sliding plate is sleeved on the sliding rail. The first transmission mechanism is a belt transmission mechanism. The belt pulley assembly equipment for the power steering oil pump can ensure that the belt pulley is not inclined or extruded in the process of being installed in a pump shaft, can improve the assembly effect of the power steering oil pump and the belt pulley of a hydraulic power steering system, and can improve the assembly efficiency. Drawings The present specification includes the following drawings, the contents of which are respectively: FIG. 1 is a front view of a power steering oil pump pulley assembly apparatus of the present invention; FIG.