CN113799738A

CN113799738A - Translation formula wiper based on screw drive

Info

Publication number: CN113799738A
Application number: CN202111141245.2A
Authority: CN
Inventors: 许寒冰; 刘晖; 杨誉尧; 程遥; 韩舒伊; 吕世海; 张根泉; 黄璐琼
Original assignee: 708th Research Institute of CSIC
Current assignee: 708th Research Institute of CSIC
Priority date: 2021-09-28
Filing date: 2021-09-28
Publication date: 2021-12-17
Anticipated expiration: 2041-09-28

Abstract

The invention relates to a translation type wiper based on lead screw transmission, which comprises a wiper body, a driving part, a lead screw transmission part and a wiper arm, wherein the wiper body is used for installing the driving part and the transmission part; the driving part is connected with the transmission part and is used for driving the screw rod transmission part to act; the lead screw transmission part is connected with the scraping arm and used for driving the scraping arm to move horizontally, and the water scraping function is achieved. Compared with the prior art, the translation type wiper based on the screw rod transmission has higher reliability when used in a severe environment on the basis of realizing translation type water and dust removal.

Description

Translation formula wiper based on screw drive

Technical Field

The invention relates to a translational wiper for vehicles and ships, in particular to a translational wiper device based on lead screw transmission.

Background

The translational wiper is widely applied to the fields of vehicles, ships and the like and is used for removing water of personnel windows. However, the translation stroke of the wiper arm is long, and the wiper arm needs to move in a translation area through an opening in the body shell, so that the inner cavity of the wiper and the external environment are difficult to completely seal, and substances such as external water, sand and dust easily enter the cavity of the transmission part. The wipers of conventional ships and vehicles are only used in rainy days and the like, and the influence of external rainwater and a small amount of dust entering the cavity of the transmission part on the wipers is small.

The hovercraft is a special ship, and the whole hovercraft is supported by inflating a booster fan to an apron at the bottom of the hovercraft, so that the hovercraft can sail at high speed and freely sail between the water surface and the land. Because the apron at the bottom of the hovercraft is not a closed structure and has larger gas leakage, when the hovercraft sails on water, large water mist can be stirred to splash, and when the hovercraft sails on land, large sand dust can be stirred, and the water mist and the sand dust can cover the whole hull, so that a wiper is needed to remove the water and the sand dust on the driving window to ensure the sight of a driver. The hovercraft needs to use the wipers once sailing, and the service time of the wipers is much longer than that of a conventional ship. Sea water with high corrosivity and a large amount of dust are stirred up when the hovercraft sails on the sea and on the land, and the operation of the wiper is greatly influenced after the sea water enters the inner cavity of the transmission part. Various wipers are replaced in the long-term use process of the hovercraft, and faults are easy to occur after the hovercraft is used for a period of time.

Therefore, the translation wiper needs to be invented, so that the problem of sealing between the cavity of the transmission part of the wiper and the external environment is solved, and the use reliability of the translation wiper in the severe environment is improved.

Disclosure of Invention

In view of the technical problems, the invention provides a translation type wiper based on screw rod transmission, which solves the sealing problem between a cavity of a wiper transmission part and the external environment.

In order to achieve the purpose, the invention adopts the technical scheme that: a translation type wiper based on lead screw transmission comprises a wiper body, a driving part, a lead screw transmission part and a wiper arm, wherein the wiper body is used for mounting the driving part and the transmission part; the driving part is connected with the transmission part and is used for driving the screw rod transmission part to act; the lead screw transmission part is connected with the scraping arm and used for driving the scraping arm to move horizontally, and the water scraping function is achieved.

Furthermore, the machine body is divided into a sealed cavity and a semi-sealed cavity by a fixed partition.

Further, the driving part is installed in the sealed cavity, and the screw rod transmission part is installed in the semi-sealed cavity.

Furthermore, the screw rod transmission part consists of a screw rod, a polished rod and a sliding block.

Furthermore, one end of the screw rod extends into the sealed cavity of the machine body to be connected with the driving part, and the driving part operates to drive the screw rod to rotate.

Further, adopt the sealing washer to seal between lead screw and the seal chamber, ensure seal chamber's the nature to guarantee that the drive assembly of core is not influenced by external steam, sand and dust, improve the wiper reliability.

Furthermore, one side of the sliding block is provided with a unthreaded hole matched with the polished rod, the other side of the sliding block is provided with threads matched with the screw rod, the rotation of the sliding block is limited by the combination of the screw rod and the polished rod, and the sliding block can move in parallel when the screw rod rotates.

Further, the two sides of the sliding block are provided with the organ covers to further improve the sealing performance.

Furthermore, the scraping arm extends into an opening on the machine body for the sliding of the scraping arm and is fixedly connected with the lower end of a sliding block in the screw rod transmission part.

Further, set up two elastic sealing strips that have between the opening on arm of scraping and the organism, scrape the arm and can slide between two sealing strips.

The invention has the beneficial effects that:

compared with the prior art, the translation type wiper based on the screw rod transmission has higher reliability when used in a severe environment on the basis of realizing translation type water and dust removal.

Drawings

FIG. 1 is a general view of a lead screw drive based translating wiper of the present invention;

FIG. 2 is a schematic view of a drive portion;

FIG. 3 is a schematic view of a slider portion;

FIG. 4 is an enlarged view of a portion I of FIG. 3;

fig. 5 is a cross-sectional view taken along a-a in fig. 4.

Detailed Description

The embodiments of the present invention will be specifically explained below with reference to the drawings.

As shown in figure 1, the invention mainly comprises a fixed machine body 1, a driving part 2, a screw rod 3, a polished rod 4, a sliding block 5, an organ cover 6, a sealing strip 7 and a scraping arm 8.

As shown in fig. 2. The machine body 1 is divided into a sealed cavity 10 and a semi-sealed cavity 11, and the two cavities are separated by a fixed partition 9. The driving part 2 is arranged in the sealed cavity, one end of the screw rod 3 extends into the sealed cavity to be connected with the driving part 2, and the driving part 2 can drive the screw rod 3 to rotate. The screw rod 3 can be sealed in mature modes such as a sealing ring and the like as a rotating part to ensure the tightness of a sealed cavity, so that a core driving part is ensured not to be influenced by external water vapor and sand dust, and the reliability of the wiper is improved.

As shown in fig. 3 to 5, the screw rod 3 is provided with threads; the polish rod 4 is a whole cylinder; one side of the sliding block 5 is provided with a threaded hole, and the other side of the sliding block is provided with a unthreaded hole which is respectively matched with the screw rod 3 and the polished rod 4. The screw rod 3 and the polished rod 4 can jointly limit the rotation of the sliding block 5. Similar to a bolt and a nut, when the screw rod 3 rotates and the slide block 5 cannot rotate, the thread on the slide block 5 is matched with the thread on the screw rod to realize the translational motion of the slide block. The scraping arm 8 is fixedly connected with the sliding block 5, and the sliding block 5 moves to drive the scraping arm 8 to move horizontally, so that the horizontal-moving type water scraping function is realized.

As shown in fig. 5, since the wiper arm 8 needs to be translated, an opening is necessarily required in the body 1 to provide a space for the wiper arm 8 to be translated. 2 sealing strips 7 with elasticity are arranged at the opening of the machine body 1, and the scraping arm 8 can slide between the 2 sealing strips 7. At the position 2 with the scraping arm 8, the sealing strip 7 is squeezed open, and at the position 2 without the scraping arm 8, the sealing strip 7 rebounds to seal the opening. When the external environment is severe, the sealing measure still has the possibility of leakage of a small amount of water vapor and sand dust, but compared with a conventional wiper which does not take any measures, the environment in the semi-sealed cavity can be greatly improved. On the basis of the sealing measure, 1 organ cover 6 is arranged on both sides of the sliding block 5 to further improve the sealing property: the organ cover 6 surrounds the screw rod 3 and the polished rod 4, one end of the organ cover 6 is connected to the sliding block 5, the other end of the organ cover 6 is connected to the machine body 1, the organ cover 6 can be compressed or stretched, and the organ cover 6 cannot be broken when being pulled and pressed; when the sliding block 5 moves, the organ cover 6 on one side is stretched, and meanwhile, the organ cover 6 on the other side is compressed, but the lead screw in the organ cover 6 can be ensured to be always in a sealing state, so that the moving part is ensured not to be influenced by external water vapor and sand dust.

The above detailed description of the embodiments of the present invention is given by way of example only, and the present invention is not limited to the above described embodiments, and any equivalent modifications and substitutions may be made by those skilled in the art within the scope of the present invention. Accordingly, equivalent changes and modifications made without departing from the spirit and scope of the present invention should be covered by the present invention. The scope of the invention is defined by the appended claims and equivalents.

Claims

1. The utility model provides a translation formula wiper based on screw drive which characterized in that: the scraper comprises a machine body, a driving part, a screw rod transmission part and a scraper arm, wherein the machine body is used for mounting the driving part and the transmission part; the driving part is connected with the transmission part and is used for driving the screw rod transmission part to act; the lead screw transmission part is connected with the scraping arm and used for driving the scraping arm to move horizontally, and the water scraping function is achieved.

2. The lead screw drive based translating wiper according to claim 1, wherein: the machine body is divided into a sealed cavity and a semi-sealed cavity by a fixed partition.

3. The lead screw drive based translating wiper according to claim 2, wherein: the driving part is arranged in the sealed cavity, and the screw rod transmission part is arranged in the semi-sealed cavity.

4. The lead screw drive based translating wiper according to claim 1, wherein: the screw rod transmission part consists of a screw rod, a polished rod and a sliding block.

5. The lead screw drive based translational wiper according to claim 4, wherein: one end of the screw rod extends into the sealed cavity of the machine body to be connected with the driving part, and the driving part operates to drive the screw rod to rotate.

6. The lead screw drive based translating wiper according to claim 5, wherein: the lead screw and the seal cavity are sealed by the seal ring, and the tightness of the seal cavity is ensured, so that the driving part of the core is not affected by external water vapor and sand dust, and the reliability of the wiper is improved.

7. The lead screw drive based translational wiper according to claim 4, wherein: one side of the sliding block is provided with a unthreaded hole matched with the polished rod, the other side of the sliding block is provided with threads matched with the screw rod, the rotation of the sliding block is limited by the combination of the screw rod and the polished rod, and the sliding block can move in parallel when the screw rod rotates.

8. The lead screw drive based translational wiper according to claim 4, wherein: and two sides of the sliding block are provided with an organ cover to further improve the sealing property.

9. The lead screw drive based translating wiper according to claim 1, wherein: the scraping arm extends into an opening on the machine body for the sliding of the scraping arm and is fixedly connected with the lower end of a sliding block in the screw rod transmission part.

10. The lead screw drive based translating wiper according to claim 9, wherein: two elastic sealing strips are arranged between the scraping arm and the opening on the machine body, and the scraping arm can slide between the two sealing strips.