Automobile engine water pump belt pulley with high assembly precision

Abstract

The utility model discloses an automobile engine water pump belt pulley with high assembly precision, which relates to the technical field of belt pulleys, solves the problems of inconvenience in positioning and low mounting firmness of the existing device, and adopts the following scheme: fixed discs opposite to each other are fixedly mounted on the outer wall of a rotating shaft; according to the automobile engine water pump belt pulley with the high assembly precision, through the arrangement of the positioning blocks and the positioning grooves, firstly, the belt pulley body is placed on the rotating shaft through the mounting holes, the positioning blocks correspond to the positioning grooves, and then the belt pulley body is placed on the rotating shaft through the mounting holes; by arranging the threaded holes and the flange holes, the threaded holes correspond to the flange holes conveniently, positioning is easy and convenient, the mounting efficiency is improved, meanwhile, the flange plate is attached to the fixed disc through the arrangement of the fixed disc and the flange plate, and then the flange plate and the fixed disc are connected and fixed through six sets of locking bolts; the connection between the flanges improves the stability and firmness of the connection between the whole belt pulley and the fixing disc, and the loosening phenomenon is prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of belt pulley, specifically is the automobile engine water pump belt pulley of high assembly accuracy. BACKGROUND

[0002] Engine water pump belt pulley is connected with transmission shaft, is used for providing cooling circulating water for engine through belt drive water pump rotation, and engine factory assembly line needs to install engine water pump belt pulley on engine water pump assembly, and water pump belt pulley and water pump assembly rely on three bolts to be connected and fixed.

[0003] Through the search, the application of patent announcement No. CN207014250U discloses an engine water pump belt pulley fixing device, the engine water pump belt pulley fixing device includes a fixed part, a positioning part mounted on the engine crankshaft belt pulley and a bracket connecting the fixed part and the positioning part, the fixed part includes a fixed body connected with the bracket and a pin extending from the fixed body towards the water pump belt pulley side and inserted into the hub hole of the water pump belt pulley, so that the installation efficiency can be improved;

[0004] But because of the setting of the fixing device, after placing the belt pulley main body on the fixing device, it needs to be connected and fixed through three bolts, and the bolt needs to be positioned when penetrating into the mounting hole, which is inconvenient for positioning, resulting in low installation efficiency, and the stability and firmness of the three bolts are low.

[0005] Therefore, we propose the automobile engine water pump belt pulley of high assembly accuracy. Utility model content

[0006] In view of the deficiencies of the prior art, the utility model provides the automobile engine water pump belt pulley of high assembly accuracy, and solves the problems of inconvenient positioning and low installation firmness of the existing device.

[0007] To achieve the above object, the utility model realizes the following technical scheme: the automobile engine water pump belt pulley of high assembly accuracy, including belt pulley main body and water pump, the outer wall of the belt pulley main body is provided with a belt groove, and the water pump is provided with a rotating shaft;

[0008] The outer wall of the rotating shaft is fixedly installed with opposite fixed discs, the outer wall of the rotating shaft is fixedly installed with positionally opposite and specificationally matched positioning blocks, the left side of the belt pulley main body is fixedly installed with a flange plate matched in specification, the left side of the flange plate is provided with an installation hole matched in specification with the rotating shaft, and the inner wall of the installation hole is provided with a specificationally matched positioning groove;

[0009] The right side of the fixed disc is provided with six groups of position-opposed threaded holes, the left side of the flange disc is provided with six groups of position-opposed and specification-adapted flange holes, and the flange holes are assembled with specification-adapted locking bolts.

[0010] Preferably, the right side of the belt pulley body is fixedly installed with a specification-adapted limiting disc, and the limiting disc and the flange disc are larger in diameter than the belt pulley body, so that the belt installed on the belt pulley body can be limited, and the stability of installation is improved.

[0011] Preferably, the right side of the belt pulley body is provided with a specification-adapted groove, so that the production material and weight of the belt pulley body can be reduced, the production cost can be reduced, and manual carrying is facilitated.

[0012] Preferably, the right side of the limiting disc is provided with a specification-adapted mounting groove, so that the installation of the belt pulley body is facilitated.

[0013] Preferably, the right side of the limiting disc is provided with uniformly distributed heat dissipation grooves, so that the heat dissipation efficiency and performance of the belt pulley body are improved.

[0014] Preferably, a plurality of uniformly distributed connecting rods are fixedly installed between the limiting disc and the flange disc, and the connecting rods and the limiting disc are made of steel material, so that the connectivity between the limiting disc and the flange disc is improved, the strength and hardness of the whole device are improved, and the service life is improved.

[0015] 1、The automobile engine water pump belt pulley with high assembly precision, through the setting of the positioning block and the positioning groove, the belt pulley body is placed on the rotating shaft through the mounting hole, the positioning block corresponds to the positioning groove, so that the threaded hole and the flange hole are corresponded, the positioning is simple and convenient, and the installation efficiency is improved.

[0016] 2、Meanwhile, through the setting of the fixed disc and the flange disc, the flange disc is attached to the fixed disc, then the six groups of locking bolts are connected and fixed, the connection between the flanges improves the stability and firmness of the connection between the whole belt pulley and the fixed disc, and the loosening phenomenon is prevented. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a structure schematic view of the whole utility model;

[0018] Figure 2 It is a structure schematic view of the fixed disc of the utility model;

[0019] Figure 3 It is a structure schematic view of the flange disc of the utility model;

[0020] Figure 4 It is a structure schematic view of the limiting disc of the utility model.

[0021] In the diagram: 1. Pulley body; 2. Rotating shaft; 3. Fixed plate; 4. Positioning block; 5. Flange; 6. Mounting hole; 7. Positioning groove; 8. Threaded hole; 9. Flange hole; 10. Limiting plate; 11. Groove; 12. Mounting groove; 13. Heat dissipation groove; 14. Connecting rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example 1: As Figures 1-4 As shown: A fixed plate 3 with a corresponding position is fixedly installed on the outer wall of the rotating shaft 2. A positioning block 4 with a corresponding position and matching specifications is fixedly installed on the outer wall of the rotating shaft 2. A flange 5 with matching specifications is fixedly installed on the left side of the pulley body 1. A mounting hole 6 with a matching specification is opened on the left side of the flange 5. A positioning groove 7 with a matching specification is opened on the inner wall of the mounting hole 6. With the positioning block 4 and the positioning groove 7, the pulley body 1 is first placed on the rotating shaft 2 through the mounting hole 6. The positioning block 4 corresponds to the positioning groove 7, which makes it easy to align the threaded hole 8 and the flange hole 9. The positioning is simple and convenient, improving the installation efficiency.

[0024] Example 2: As Figures 2-4 As shown: The right side of the fixed plate 3 has six sets of threaded holes 8 with corresponding positions, and the left side of the flange 5 has six sets of flange holes 9 with corresponding positions and matching specifications. The flange holes 9 are fitted with locking bolts of matching specifications. Through the arrangement of the fixed plate 3 and the flange 5, the flange 5 fits into the fixed plate 3, and then is connected and fixed by the six sets of locking bolts. The connection between the flanges improves the stability and firmness of the connection between the pulley and the fixed plate 3, and prevents loosening.

[0025] Example 3: As Figures 2-3 As shown: A matching limiting plate 10 is fixedly installed on the right side of the pulley body 1. The diameter of the limiting plate 10 and the flange 5 is larger than that of the pulley body 1, so as to limit the belt installed on the pulley body 1 and improve the stability of the installation.

[0026] The working principle and use process of the utility model: when the device needs to work, first the pulley main body 1 is placed on the rotating shaft 2 through the installation hole 6, the positioning block 4 corresponds with the positioning groove 7, so as to correspond the threaded hole 8 and the flange hole 9, the positioning is simple and convenient, improves the efficiency of installation, at the same time the flange plate 5 and the fixed disc 3 are pasted, then through six groups of locking bolts are connected and fixed, the connection between the flanges improves the stability and firmness of the connection between the pulley whole and the fixed disc 3, prevents the loosening phenomenon.

[0027] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0028] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, the technical solutions in each embodiment can also be combined appropriately to form other embodiments that those skilled in the art can understand.

Claims

1. An automobile engine water pump pulley with high assembly accuracy, comprising a pulley body (1) and a water pump, a belt groove is formed on the outer wall of the pulley body (1), and a rotating shaft (2) is assembled on the water pump; characterized in that A fixed disc (3) is fixedly installed on the outer wall of the rotating shaft (2) in opposite positions, a positioning block (4) is fixedly installed on the outer wall of the rotating shaft (2) in opposite positions and with compatible specifications, a flange plate (5) with compatible specifications is fixedly installed on the left side of the pulley body (1), an installation hole (6) with compatible specifications with the rotating shaft (2) is formed on the left side of the flange plate (5), and a positioning groove (7) with compatible specifications is formed on the inner wall of the installation hole (6). Six groups of threaded holes (8) are formed on the right side of the fixed disc (3) in opposite positions, six groups of flange holes (9) with compatible specifications and in opposite positions are formed on the left side of the flange plate (5), and locking bolts with compatible specifications are assembled in the flange holes (9).

2. The automobile engine water pump pulley with high assembly accuracy according to claim 1, characterized in that: A limiting disc (10) with compatible specifications is fixedly installed on the right side of the pulley body (1), and the diameters of the limiting disc (10) and the flange plate (5) are larger than that of the pulley body (1).

3. The high-assembly-precision water pump pulley for an automobile engine according to claim 1, characterized by: A groove (11) with compatible specifications is formed on the right side of the pulley body (1).

4. The high-assembly-precision water pump pulley for an automobile engine according to claim 2, characterized by: An installation groove (12) with compatible specifications is formed on the right side of the limiting disc (10).

5. The high-assembly-precision water pump pulley for an automobile engine according to claim 2, characterized by: Uniformly distributed heat dissipation grooves (13) are formed on the right side of the limiting disc (10).

6. The high-assembly-precision water pump pulley for an automobile engine according to claim 2, characterized by: Uniformly distributed connecting rods (14) are fixedly installed between the limiting disc (10) and the flange plate (5), and the connecting rods (14) and the limiting disc (10) are made of steel material.

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