CN219388472U - Silicone oil clutch of step type oil pumping mechanism - Google Patents

Abstract

The utility model discloses a silicone oil clutch of a stepped oil pumping mechanism, which comprises a clutch body, wherein the clutch body comprises a driving plate, a driven plate, a shell and a cover body, the driving plate is rotationally connected with the shell through a bearing, the shell and the cover body are fixed together through riveting, the driven plate is riveted on the driving plate to form an oil storage chamber together with the driving plate, the shell and the cover body form a working cavity with a tooth slot together, an oil return cavity is arranged in the working cavity, the outer edge of the driving plate is provided with the stepped oil pumping mechanism, the stepped oil pumping mechanism is provided with an oil baffle groove, an oil return cavity is arranged in the oil baffle groove and communicated with the oil return hole, and the oil return cavity is internally provided with an oil return channel and communicated with the oil storage chamber through the oil return channel. The step is arranged in front of the oil baffle groove on the outermost side of the driving plate, and the step is lower than the oil baffle groove on the convex block, so that the volume of the oil return groove is suddenly reduced when silicone oil flows to the step position in front of the oil baffle groove, high pressure is generated at the step position in front of the oil baffle groove, and the oil return speed is accelerated.

Description

Silicone oil clutch of step type oil pumping mechanism

Technical Field

The utility model relates to the technical field of silicone oil clutches, in particular to a silicone oil clutch of a stepped oil pumping mechanism.

Background

With the rapid development of industrial technology, each host manufacturer puts higher demands on the silicone oil clutch fan. Such as improved cooling capacity, reduced power consumption, reduced fan noise, etc. However, the traditional electrically controlled silicone oil clutch fan has long separation time during cold start, and the clutch has long separation time during normal operation, which is easy to cause supercooling of an engine, and causes high oil consumption, large noise, large viscosity of lubricating oil, aggravation of abrasion of parts and the like of the engine. Therefore, it is desirable to design a silicone oil clutch that can be quickly disengaged under a variety of operating conditions.

The electrically controlled silicone oil clutch of the prior art comprises: the driving shaft, the bearing, the casing, the driving plate, the sealing washer, the driven plate, the oil outlet valve block, silicone oil, the end cover, the connector assembly, thereby form the oil storage chamber between driven plate and the mainboard between driving plate and casing, driving shaft drive driving plate, the driving plate passes through silicone oil and transmits power to casing and end cover, after the valve block received PWM pulse and opened the signal, the valve block opened the oil outlet, thereby silicone oil gets into the working chamber under centrifugal force effect, thereby with power transmission to casing and end cover drive fan high-speed rotation, the heat of motor has been taken away to the air current. When the valve plate of the oil outlet hole receives the PWM pulse closing signal, the valve plate closes the oil outlet hole, and meanwhile, the silicone oil returns to the oil storage chamber through the oil return pressure pump and the oil return channel, and the clutch fan enters a separation state.

The traditional silicone oil clutch oil return mechanism is a whole ring groove oil adding mechanism, the structure is single, the oil return effect is limited, and the separation time is too long or the separation cannot be performed.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a silicone oil clutch of a stepped oil pumping mechanism, which aims to solve the problems in the prior art.

In order to solve the technical problems, the utility model provides the following technical scheme:

the utility model provides a silicone oil clutch of step pump oil mechanism, includes the clutch body, the clutch body includes driving plate, driven plate, casing and lid, the driving plate passes through the bearing and rotates with the casing to be connected, the casing passes through the riveting together with the lid, the driven plate is riveted on the driving plate, forms the oil storage chamber jointly with the driving plate, driving plate and casing, lid form the working chamber that has the tooth's socket jointly, the working intracavity is equipped with the oil return chamber, be equipped with step pump oil mechanism on the outer fringe of driving plate, be equipped with the oil retaining groove on the step pump oil mechanism, be equipped with the oil return hole in the oil retaining groove, oil return chamber and oil return hole intercommunication, be equipped with the oil return passageway in the driving plate, the oil return hole passes through oil return passageway and oil storage chamber intercommunication.

Preferably, the step oil pumping mechanism comprises a protruding block fixed on the outer edge of the driving plate and a step arranged on the front side of the protruding block, the oil baffle groove is arranged on the protruding block, one end of the step extends into the oil baffle groove, and the step is lower than the protruding block so as to reduce the oil return volume.

Preferably, the clutch body further comprises a driving shaft, a connector assembly and a valve plate, the driving shaft is rigidly connected with the driving plate, the fan is mounted on the shell through a bolt, the valve plate is elastic and is fixed on the driving plate through a screw, the center of the valve plate is opposite to the top of the driving shaft, one end of the valve plate is opposite to an oil outlet of the driving plate, and an electromagnetic coil is arranged in the connector assembly.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the step type oil pumping mechanism is arranged on the outer edge of the driving plate, the oil blocking groove is arranged on the step type oil pumping mechanism, silicone oil is blocked by the oil blocking groove, the silicone oil is led to enter the oil return hole to return oil rapidly, and the step is arranged in front of the oil blocking groove on the outermost side of the driving plate and is lower than the oil blocking groove on the convex block, so that the volume of the oil return groove is suddenly reduced when the silicone oil flows to the step in front of the oil blocking groove, high pressure is generated at the step in front of the oil blocking groove, and the oil return speed is accelerated.

Drawings

FIG. 1 is a cross-sectional view of the present utility model;

FIG. 2 is a front view of an active plate;

FIG. 3 is a cross-sectional view of an active plate of the present utility model;

FIG. 4 is a partial view of an active plate oil return mechanism of the present utility model;

FIG. 5 is a partial view of a conventional active plate oil return mechanism;

FIG. 6 is a cloud chart of the present utility model versus conventional return oil pressure;

in the figure, a 1-driving plate, a 2-driven plate, a 3-shell, a 4-cover, a 5-bearing, a 6-oil storage chamber, a 7-working cavity, an 8-oil baffle groove, a 9-oil return hole, a 10-oil return channel, an 11-bump, a 12-step, a 13-driving shaft, a 14-connector assembly, a 15-valve plate, a 16-oil outlet, a 17-electromagnetic coil and an 18-oil return cavity.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, a silicone oil clutch of a stepped oil pumping mechanism comprises a clutch body, the clutch body comprises a driving plate 1, a driven plate 2, a shell 3, a cover 4, a driving shaft 13, a connector assembly 14 and a valve plate 15, the driving shaft 13 is rigidly connected with the driving plate 1, the driving plate 1 is rotationally connected with the shell 3 through a bearing 5, the shell 3 and the cover 4 are fixed together through riveting, a fan is mounted on the shell 3 through bolts, the driven plate 2 is riveted on the driving plate 1, an oil storage chamber 6 is jointly formed by the driven plate 1, a working cavity 7 with a tooth groove is jointly formed by the driving plate 1, the shell 3 and the cover 4, an oil return cavity 18 is arranged in the working cavity 7, the valve plate 15 is elastically fixed on the driving plate 1 through bolts, the center of the valve plate 15 is opposite to the top of the driving shaft 13, one end of the valve plate is opposite to the oil outlet 16 of the driving plate 1, and an electromagnetic coil 17 is arranged in the connector assembly 14.

The outer edge of the driving plate 1 is provided with a step type oil pumping mechanism, the step type oil pumping mechanism comprises a protruding block 11 fixed on the outer edge of the driving plate 1 and a step 12 arranged on the front side of the protruding block, the protruding block 11 is provided with an oil baffle groove 8, the oil baffle groove 8 is internally provided with an oil return hole 9, the oil return cavity 18 is communicated with the oil return hole 9, the driving plate 1 is internally provided with an oil return channel 10, and the oil return hole 9 is communicated with the oil storage chamber 6 through the oil return channel 10; one end of the step 12 extends into the oil baffle groove 8, and the step 12 is lower than the bump 11 so as to reduce the oil return volume.

The working principle of the utility model is as follows:

when the PWM signal received by the connector assembly 14 is 100% (the electromagnetic coil is electrified), the electromagnetic coil arranged in the connector assembly 14 is excited with the driving shaft 13, the oil outlet 16 is closed by the suction valve plate 15, the silicone oil flows to the oil return hole 9 through the oil return cavity 18, the oil baffle groove 8 at the outermost side of the driving plate 1 blocks the silicone oil and guides the silicone oil to enter the oil return hole 9, the step 12 is lower than the oil baffle groove 8 on the convex block 11 through arranging the step 12 in front of the oil baffle groove 8 at the outer side of the driving plate, when the silicone oil flows to the step 12 in front of the oil baffle groove 8, the volume of the oil return groove is suddenly reduced, high pressure is generated at the step 12 in front of the oil baffle groove 8, the oil return speed is increased, the silicone oil quickly returns to the oil storage chamber 6 through the oil return hole 9 and the oil return channel 10, the clutch enters a separation state, and the fan does not work; when the PWM signal received by the connector assembly 14 is 0% (the electromagnetic coil is powered off), the magnetic force of the driving shaft 13 disappears, the valve plate 15 springs to open the oil outlet 16, silicone oil enters the working cavity 7 through centrifugal force, and the clutch enters a coupling state to drive the fan to work. Meanwhile, the clutch can change the time of opening the oil outlet of the valve plate 15 by adjusting the PWM, and control the silicon oil quantity in the working cavity, so as to change the rotating speed of the fan and realize stepless speed regulation.

The performance of a traditional silicone oil clutch and a silicone oil clutch with a step oil return structure is compared with the performance of the traditional silicone oil clutch with the step oil return structure is shown in the following table:

TABLE 1

It should be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (2)

1. The utility model provides a silicone oil clutch of step pump oil mechanism, includes the clutch body, the clutch body includes initiative board (1), driven plate (2), casing (3) and lid (4), initiative board (1) rotate through bearing (5) and casing (3) and are connected, casing (3) are fixed together through the riveting with lid (4), driven plate (2) rivet on initiative board (1), form oil storage chamber (6) jointly with initiative board (1), initiative board (1) form working chamber (7) that have the tooth's socket jointly with casing (3), lid (4), be equipped with oil return chamber (18) in working chamber (7), its characterized in that: the oil return device is characterized in that a step type oil pumping mechanism is arranged on the outer edge of the driving plate (1), an oil blocking groove (8) is arranged on the step type oil pumping mechanism, an oil return hole (9) is formed in the oil blocking groove (8), an oil return cavity (18) is communicated with the oil return hole (9), an oil return channel (10) is formed in the driving plate (1), and the oil return hole (9) is communicated with the oil storage chamber (6) through the oil return channel (10); the step type oil pumping mechanism comprises a protruding block (11) fixed on the outer edge of the driving plate (1) and a step (12) arranged on the front side of the protruding block, the oil blocking groove (8) is formed in the protruding block (11), one end of the step (12) extends into the oil blocking groove (8), and the step (12) is lower than the protruding block (11) so as to reduce the oil return volume.

2. The silicone oil clutch of a stepped oil pumping mechanism of claim 1, wherein: the clutch body further comprises a driving shaft (13), a connector assembly (14) and a valve plate (15), wherein the driving shaft (13) is rigidly connected with the driving plate (1), the fan is mounted on the shell (3) through bolts, the valve plate (15) is elastic and is fixed on the driving plate (1) through screws, the center of the valve plate (15) is opposite to the top of the driving shaft (13), one end of the valve plate is opposite to an oil outlet (16) of the driving plate (1), and an electromagnetic coil (17) is arranged in the connector assembly (14).