EPS shell worm cavity sealing cover with oil storage function

Abstract

The utility model discloses an EPS shell worm cavity sealing cover with an oil storage function, relates to the technical field of worm cavity sealing, and aims to solve the problems that in the prior art, due to the existence of liquid oil, the worm cavity sealing cover can only be horizontally installed on the ground in a groove during installation, and the liquid oil cannot be stably stored in the groove when inclining to a certain angle, so that the installation condition is limited, and the installation cost is lowered. According to the technical scheme, a worm is rotationally connected into the EPS shell, a worm gear is meshed with the worm, the worm gear is rotationally connected into the EPS shell, a gap adjusting mechanism is arranged at the tail of the worm, a worm cavity sealing cover is arranged on the portion, below the gap adjusting mechanism, of the EPS shell, and oil absorption cotton is arranged in the worm cavity sealing cover. The cavity is formed between the worm cavity sealing cover and the EPS shell, the oil absorption cotton is located in the cavity, it is guaranteed that all base oil is absorbed in the oil absorption cotton instead of being in a liquid state, and when the base oil inclines to a certain angle, the situation that the installation condition and the installation angle are limited due to the fact that liquid oil is unstable in a groove is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of worm cavity sealing, in particular to an EPS housing worm cavity sealing cover with an oil storage function. Background Art

[0002] The automobile steering system C-EPS uses a worm gear as a reduction mechanism, in which the worm is generally made of metal, and the worm wheel is generally made of nylon. The worm wheel is prone to wear after long-term use, so a clearance compensation mechanism is generally added. In addition, in order to reduce the wear of the worm gear and improve the transmission efficiency, it is necessary to apply grease to the meshing parts of the worm gear. The grease is mainly composed of base oil and thickener. After endurance or high temperature, a small amount of base oil will be precipitated from the grease. If there is no seal, the precipitated base oil will drip from the EPS housing into the cockpit, so the EPS housing needs to have a certain sealing performance.

[0003] Chinese patent CN217558962U discloses an EPS housing worm cavity sealing cover with an oil storage function. The technical solution adopted includes a worm and an EPS housing, wherein the worm is arranged in the EPS housing, a gap adjustment mechanism is installed at the tail of the worm, a sealing cover body is arranged on the EPS housing, the sealing cover body corresponds to the tail of the worm cavity, a groove is punched on the sealing cover body, the groove is used to store the base oil precipitated from the grease, vulcanized rubber is arranged on the surface where the sealing cover body is connected to the EPS housing, the sealing cover body is arranged as a circular structure, the sealing cover body is punched with fixing holes, the fixing holes are symmetrically arranged, the fixing holes are used to install bolts, the bolts are used to connect the sealing cover body and the EPS housing, and the groove is arranged as an elliptical structure.

[0004] This technical solution also has the following shortcomings: due to the presence of liquid oil, the prior art can only install the groove horizontally to the ground during installation. When tilted to a certain angle, the liquid oil will not be stably stored in the groove, thereby limiting the installation conditions. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide an EPS housing worm cavity sealing cover with an oil storage function, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model discloses an EPS housing worm cavity sealing cover with an oil storage function, the technical solution adopted is as follows: comprising an EPS housing, a worm rotatably connected inside the EPS housing, a worm gear meshing on the worm, the worm gear rotatably connected to the inside of the EPS housing, a gap adjustment mechanism at the tail of the worm, a worm cavity sealing cover on the EPS housing below the gap adjustment mechanism, the worm cavity sealing cover (5) being a semi-cylindrical cavity, the worm cavity sealing cover (5) having a cavity (503) inside, the cavity (503) having oil absorbent cotton (501) inside, the oil absorbent cotton being used to store liquid oil.

[0007] As a preferred technical solution of the utility model, the worm cavity sealing cover is symmetrically provided with fixing holes, and the corresponding positions of the EPS shell are provided with threaded holes. The worm cavity sealing cover is fixed to the bottom of the EPS shell through the fixing holes and bolts, and is fixed by the bolts, with a simple structure and easy installation.

[0008] As a preferred technical solution of the utility model, there is vulcanized rubber in the gap between the contact surfaces of the worm chamber sealing cover and the EPS shell. When the bolt presses the worm chamber sealing cover onto the EPS shell, the vulcanized rubber is compressed to fill the gap between the worm chamber sealing cover and the EPS shell, thereby playing a sealing role and preventing oil from flowing out from here.

[0009] As a preferred technical solution of the utility model, there is a cavity between the worm cavity sealing cover and the EPS shell, and the oil-absorbing cotton is located inside the cavity, ensuring that all the base oil is absorbed in the oil-absorbing cotton instead of existing in a liquid form.

[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a cavity between the worm cavity sealing cover and the EPS shell, and the oil-absorbing cotton is located inside the cavity, thereby ensuring that all the base oil is adsorbed in the oil-absorbing cotton rather than existing in a liquid form; when tilted to a certain angle, the installation conditions and installation angles will not be restricted due to the instability of the liquid oil in the groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the structure of the utility model;

[0012] Figure 2 This is a cross-sectional view of the structure of the utility model;

[0013] Figure 3 This is a schematic diagram of the structure of the worm cavity sealing cover of the utility model;

[0014] Figure 4 This is a cross-sectional view of the worm cavity sealing cover structure of the utility model.

[0015] In the figure: 1. worm wheel; 2. worm; 3. EPS housing; 4. gap adjustment mechanism; 5. worm cavity sealing cover; 501. oil-absorbing cotton; 502. vulcanized rubber; 503. cavity; 6. bolt; 7. fixing hole. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Example

[0017] like Figures 1 to 4 As shown, the utility model discloses an EPS housing worm cavity sealing cover with an oil storage function, and the technical scheme adopted is, comprising an EPS housing 3, wherein the EPS housing 3 is internally rotatably connected to a worm 2, the worm 2 is kneaded with a worm wheel 1, the worm wheel 1 is rotatably connected to the inside of the EPS housing 3, a gap adjustment mechanism 4 is provided at the bottom of the worm 2, a worm cavity sealing cover 5 is provided on the EPS housing 3 below the gap adjustment mechanism 4, two fixing holes 7 are provided on the bottom of the worm cavity sealing cover 5, vulcanized rubber 502 is provided on the facing surfaces of the worm cavity sealing cover 5 and the EPS housing 3, threaded holes are provided on the EPS housing 3 on the facing surfaces of the worm cavity sealing cover 5 and the EPS housing 3, and the worm cavity sealing cover 5 is fixed to the EPS housing 3 by bolts 6, the fixing holes 7 and the threaded holes.

[0018] As a preferred technical solution of the present utility model, a cavity 503 is formed between the EPS housing 3 and the worm cavity sealing cover 5 , and oil-absorbing cotton 501 is arranged inside the cavity 503 .

[0019] The working principle of the utility model is as follows: when in use, the worm cavity sealing cover 5 is fixed to the EPS housing 3 by means of bolts 6, fixing holes 7 and threaded holes. During the tightening process of the bolts 6, the vulcanized rubber 502 will be compressed between the worm cavity sealing cover 5 and the EPS housing 3 to play a sealing role. When in use, the liquid oil precipitated from the grease will be absorbed by the oil-absorbing cotton 501 in the cavity 503, so that the oil is not stored in the cavity 503 in a liquid state.

[0020] The mechanical connection involved in the utility model is a common means used by technical personnel in this field, and technical inspiration can be obtained through a limited number of tests, which belongs to common knowledge.

[0021] Components not described in detail herein are prior art.

[0022] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An EPS housing worm cavity sealing cover with an oil storage function, comprising an EPS housing (3), characterized in that: The EPS housing (3) is rotatably connected to a worm (2), the worm (2) is meshed with a worm wheel (1), the worm wheel (1) is rotatably connected to the inside of the EPS housing (3), a gap adjustment mechanism (4) is provided at the tail of the worm (2), a worm cavity sealing cover (5) is provided on the EPS housing (3) below the gap adjustment mechanism (4), the worm cavity sealing cover (5) is a semi-cylindrical cavity, a cavity (503) is provided in the worm cavity sealing cover (5), and oil-absorbing cotton (501) is provided in the cavity (503).

2. The EPS housing worm cavity sealing cover with oil storage function according to claim 1, characterized in that: The worm cavity sealing cover (5) is symmetrically provided with fixing holes (7), and a threaded hole is provided on the EPS housing (3) at a position opposite to the fixing hole (7).

3. The EPS housing worm cavity sealing cover with oil storage function according to claim 2, characterized in that: The worm chamber sealing cover (5) is fixed to the bottom of the EPS housing (3) via the fixing hole (7), the threaded hole and the bolt (6).

4. The EPS housing worm cavity sealing cover with oil storage function according to claim 3, characterized in that: Vulcanized rubber (502) is contained in the gap between the contact surfaces of the worm cavity sealing cover (5) and the EPS housing (3).

5. The EPS housing worm cavity sealing cover with oil storage function according to claim 4, characterized in that: The cavity (503) is provided between the worm cavity sealing cover (5) and the EPS housing (3), and the oil-absorbing cotton (501) is located inside the cavity (503).

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