Mechanical water pump of engine

Abstract

The utility model discloses a mechanical water pump of an engine, which relates to the technical field of automobile water pumps and comprises a positioning column fixedly connected to a water pump body; the cover body is detachably and fixedly arranged on the positioning column in a sleeving manner; the mounting plate is fixedly connected to the cover body, and a mounting hole is formed in the mounting plate; the rotating speed sensor penetrates through the mounting hole and is fixed on the mounting plate through a second locking nut; the positioning sleeve is fixedly connected to the mounting plate and surrounds the periphery of the mounting hole; the plurality of bumping posts are respectively and fixedly connected to the positioning sleeve, the plurality of bumping posts surround the periphery of the rotating speed sensor, and the extension length is greater than the length of the rotating speed sensor penetrating through the mounting hole; the sensing columns are arranged on the side wall of the belt pulley, are annularly arranged and are used for detection of the rotating speed sensor; the film sleeve is arranged on the peripheries of the bumping post and the positioning sleeve in a sleeving manner; the device has the advantages of convenience in use, long service life and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive water pumps, and particularly relates to a mechanical water pump for an engine. Background Technique

[0002] The engine drives the water pump bearing and impeller to rotate through a pulley. The coolant in the water pump is driven by the impeller to rotate together. Under the action of centrifugal force, it is thrown to the edge of the water pump housing, and at the same time, a certain pressure is generated, and then it flows out from the water outlet or water pipe. The pressure at the center of the impeller decreases due to the ejection of the coolant, and the coolant in the water tank is sucked into the impeller through the water pipe under the pressure difference between the water pump inlet and the center of the impeller, realizing the reciprocating circulation of the coolant;

[0003] For example, patent application number CN202223437209.3 discloses a driving mechanism capable of adjusting the rotation speed of an engine water pump. This patent controls the magnitude of the pushing force of the top block on the driving wheel to adjust the rotation speed of the water pump belt driving wheel in real time, so as to achieve the purpose of controlling the engine speed, and further can adjust the magnitude of the cooling water flow according to the engine demand to meet the various working conditions requirements of the engine. Specifically, when the engine is just started, the engine water pump stops working, which can effectively shorten the engine cold start time, improve the efficiency during engine cold start, and also help reduce the engine carbon deposition generated during cold start. And, since the rotation speed of the engine water pump can be adjusted, when the engine is in a general working condition, the engine water pump can maintain a low rotation speed, reduce the output of the cooling water, thereby reducing the energy consumption of the engine water pump, and further achieving the purpose of reducing the engine load and improving the engine efficiency.

[0004] During the long-term use of the engine water pump, when the vehicle is in a bumpy state for a long time, the belt of the pulley and the transmission of the pulley will become loose. Especially for off-road vehicles, in order to better detect the transmission effect of the belt and the pulley, a monitoring device is set on the engine water pump in this application to detect the rotation speed of the rotating shaft of the water pump. Content of the Utility Model

[0005] The technical problem to be solved by the utility model is to provide a mechanical water pump for an engine to solve the problem that the mechanical water pump of an automotive engine in the prior art described in the background technique lacks a rotation speed monitoring device.

[0006] To achieve the above object, the utility model provides the following technical solutions: A mechanical water pump for an engine, comprising

[0007] A positioning post, fixedly connected to the water pump body;

[0008] A cover body, detachably and fixedly sleeved on the positioning post;

[0009] The mounting plate is fixedly connected to the cover body, and the mounting plate is provided with mounting holes;

[0010] The rotational speed sensor passes through the mounting hole and is fixed on the mounting plate by a second locking nut;

[0011] The positioning sleeve is fixedly connected to the mounting plate, and the positioning sleeve surrounds the periphery of the mounting hole;

[0012] A plurality of stop posts are respectively fixedly connected to the positioning sleeve. The plurality of stop posts surround the rotational speed sensor and the extending length is greater than the length of the rotational speed sensor passing through the mounting hole;

[0013] A plurality of sensing posts are respectively arranged on the side wall of the pulley and are arranged in a ring for detection by the rotational speed sensor;

[0014] The thin film sleeve is sleeved on the periphery of the stop posts and the positioning sleeve.

[0015] Preferably, the positioning post is provided with a first through hole penetrating the positioning post, and the side wall of the cover body has a second through hole corresponding to the position of the first through hole. The first through hole and the second through hole are penetrated by a screw, and the screw is threadedly connected with a first locking nut to fix the cover body and the positioning post.

[0016] Preferably, a limit ring is fixedly sleeved on the positioning post.

[0017] The beneficial effects of adopting the above technical solutions are:

[0018] In this application, the cover body and the positioning post can be fixed by the provided screw and the first locking nut, and then the rotational speed sensor is fixed on the mounting plate by the second locking nut. The rotational speed sensor can be surrounded by the provided thin film sleeve to protect the rotational speed sensor and prevent dust and dirt from contaminating the rotational speed sensor. Description of the Drawings

[0019] Figure 1 is the front view of a mechanical water pump of an engine of the present utility model.

[0020] Figure 2 is the cross-sectional view of a mechanical water pump of an engine of the present utility model.

[0021] Figure 3 is the schematic diagram of some components in a mechanical water pump of an engine of the present utility model.

[0022] Figure 4 is the present utility model Figure 3 schematic diagram of some components.

[0023] Figure 5 is the side view of the mounting plate of the present utility model.

[0024] Figure 6It is a schematic diagram of the mounting plate of the utility model with a film sleeve.

[0025] Figure 7 It is a cross-sectional view of some components of the utility model.

[0026] Wherein: water pump body 10, pulley 20, positioning post 30, first through hole 31, limiting ring 32, cover body 40, second through hole 41, mounting plate 42, mounting hole 43, screw 50, first locking nut 51, rotational speed sensor 60, second locking nut 61, positioning sleeve 70, stop post 71, film sleeve 72, induction post 80. Specific embodiments

[0027] The embodiments of the utility model will be described in detail below with reference to the accompanying drawings.

[0028] As Figures 1-5 , in the first embodiment, a mechanical water pump of an engine includes

[0029] Positioning post 30, fixedly connected to the water pump body 10;

[0030] Cover body 40, detachably and fixedly sleeved on the positioning post 30;

[0031] Mounting plate 42, fixedly connected to the cover body 40, and the mounting plate 42 is provided with a mounting hole 43;

[0032] Rotational speed sensor 60, passing through the mounting hole 43 and fixed on the mounting plate 42 by the second locking nut 61;

[0033] Positioning sleeve 70, fixedly connected to the mounting plate 42, and the positioning sleeve 70 surrounds the periphery of the mounting hole 43;

[0034] A plurality of stop posts 71, respectively fixedly connected to the positioning sleeve 70, and a plurality of the stop posts 71 surround the rotational speed sensor 60 and the extending length is greater than the length of the rotational speed sensor 60 passing through the mounting hole 43;

[0035] A plurality of induction posts 80, respectively arranged on the side wall of the pulley 20 and arranged in a ring shape for detection by the rotational speed sensor 60;

[0036] Film sleeve 72, sleeved on the periphery of the stop posts 71 and the positioning sleeve 70.

[0037] This embodiment is implemented as follows:

[0038] When this application is in use, when the pulley 20 rotates, it will drive the sensing post 80 to rotate. At this time, the rotational speed sensor 60 can detect it, so as to obtain the rotational speed of the pulley 20. The film sleeve 72 sleeved on the sensing post 80 can prevent dust from covering the rotational speed sensor 60 and affecting the detection of the rotational speed sensor 60. It should be noted that the film sleeve 72 does not affect the detection of the rotational speed sensor 60; when it is necessary to replace the rotational speed sensor 60, the cover 40 can be removed from the positioning post 30 or the rotational speed sensor 60 can be removed from the mounting plate 42 to achieve the replacement of the rotational speed sensor 60.

[0039] The advantage of this application compared with the prior art is that it is more flexible to use.

[0040] Please refer to Figure 1 、 2 Figures 3, 4, and 7. The positioning post 30 has a first through hole 31 penetrating the positioning post 30. At the position corresponding to the first through hole 31 on the side wall of the cover 40, there is a second through hole 41. The first through hole 31 and the second through hole 41 are penetrated by a screw 50, and the screw 50 is threadedly connected with a first locking nut 51 to fix the cover 40 and the positioning post 30.

[0041] By setting the screw 50 that can penetrate the first through hole 31 and the second through hole 41 and be connected with the first locking nut 51, the cover 40 and the positioning post 30 can be fixed, which is convenient for disassembly and fixation.

[0042] Please refer to Figure 1 、 2 Figures 3 and 4. A limit ring 32 is fixedly sleeved on the positioning post 30.

[0043] The limit ring 32 can limit the movement of the cover 40, making it more convenient for the screw 50 to pass through the first through hole 31 and the second through hole 41.

[0044] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the creative concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A mechanical water pump for an engine, characterized in that: include A positioning column, fixedly connected to the water pump body; A cover body, wherein the detachable fixing sleeve is arranged on the positioning column; A mounting plate, fixedly connected to the cover body, and having a mounting hole; A speed sensor passes through the mounting hole and is fixed on the mounting plate through a second locking nut; A positioning sleeve, fixedly connected to the mounting plate, the positioning sleeve surrounds the periphery of the mounting hole; A plurality of blocking posts are respectively fixedly connected to the positioning sleeve, and the blocking posts surround the rotation speed sensor and extend longer than the length of the rotation speed sensor penetrating the mounting hole; A plurality of sensing columns are respectively arranged on the side walls of the pulley and arranged in a ring shape, and are used for speed sensor detection; The film sleeve is sleeved on the periphery of the retaining column and the positioning sleeve.

2. A mechanical water pump for an engine according to claim 1, characterized in that: The positioning column has a first through hole passing through the positioning column, and the side wall of the cover body has a second through hole at a position corresponding to the first through hole. The first through hole and the second through hole are penetrated by a screw, and the screw is threadedly connected to the first locking nut to fix the cover body and the positioning column.

3. A mechanical water pump for an engine according to claim 2, characterized in that: The fixing sleeve on the positioning column is provided with a limiting ring.

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