CN217603485U

CN217603485U - Reduction gearbox capable of adjusting and indicating at will

Info

Publication number: CN217603485U
Application number: CN202220929844.4U
Authority: CN
Inventors: 唐晓峰; 唐其忠; 李杏萍
Original assignee: Zhejiang Qizhong Control Equipment Co ltd
Current assignee: Zhejiang Qizhong Control Equipment Co ltd
Priority date: 2022-04-21
Filing date: 2022-04-21
Publication date: 2022-10-18
Anticipated expiration: 2032-04-21

Abstract

The utility model discloses a can adjust reducing gear box of instruction at will, its technical scheme main points are: a reduction gearbox capable of adjusting and indicating at will comprises a reduction gearbox body, a worm wheel, a worm and a driving shaft sleeve fixedly connected with the worm wheel, wherein the reduction gearbox body is rotatably connected with an indicating disc, the rotating axial direction of the indicating disc and the driving shaft sleeve are concentrically arranged, an adjustable fixing structure is arranged between the indicating disc and the driving shaft sleeve, and the adjustable fixing structure comprises a check ring which is connected with the indicating disc and can drive the indicating disc to rotate synchronously under the friction force of the driving shaft sleeve driving the shaft sleeve. The utility model discloses can be in the use, the pertinence is adjusted the indicator panel, promotes the accuracy that the valve was opened and close.

Description

Reduction gearbox capable of adjusting and indicating at will

Technical Field

The utility model relates to an executor field especially involves a reducing gear box that can adjust the instruction at will.

Background

The existing angular travel electric actuating mechanism generally comprises an angular travel reduction box, and the angular travel reduction box is generally provided with an indicating arrow which can indicate the specific switch position of a valve. The pointer or the indicating arrow of the indicating dial of the existing angular travel reduction gearbox is generally defined and finished when the indicating dial leaves a factory, and the angle position is difficult to adjust in the using process.

Therefore, after the actual reduction gearbox and the valve are installed, the angle of the pointer of the indicating dial generally needs to have a certain fine adjustment amount according to the opening and closing position of the valve and the installation position of the reduction gearbox. There is a need for an improved structure that overcomes the above-mentioned deficiencies.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a reducing gear box that can adjust the instruction at will can be in the use, and the pertinence is adjusted the indicator panel, promotes the accuracy that the valve was opened and close.

The above technical object of the utility model is realized through following technical scheme: a reduction gearbox capable of adjusting and indicating at will comprises a reduction gearbox body, a worm wheel, a worm and a driving shaft sleeve fixedly connected with the worm wheel, wherein the reduction gearbox body is rotatably connected with an indicating disc, the rotating axial direction of the indicating disc and the driving shaft sleeve are concentrically arranged, an adjustable fixing structure is arranged between the indicating disc and the driving shaft sleeve, and the adjustable fixing structure comprises a check ring which is connected with the indicating disc and can drive the indicating disc to rotate synchronously under the friction force of the driving shaft sleeve driving the shaft sleeve.

The utility model discloses a further set up to: adjustable fixed knot constructs is still including seting up in the annular of drive shaft sleeve inner wall, being located drive shaft sleeve inner chamber and with the interior welt of indicator panel bolted connection, the retaining ring is located the annular, just interior welt can the butt towards the terminal surface of indicator panel the retaining ring, the annular width is greater than the thickness of retaining ring.

The utility model discloses a further set up to: the lining plate is provided with a plurality of threaded holes, the indicating disc is provided with a plurality of through holes corresponding to the threaded holes one by one, and screws are arranged between the threaded holes and the through holes.

The utility model discloses a further set up to: the end face of one end, facing the indicating disc, of the driving shaft sleeve protrudes out of the box body of the reduction gearbox and can abut against the indicating disc.

The utility model discloses a further set up to: the indicating disc is arranged in a circular shape, and the edge of the indicating disc is provided with a folding edge which is attached to the side wall of the box body of the reduction box.

To sum up, the utility model discloses following beneficial effect has:

through the structure, the screw is connected to the threaded hole of the inner lining ring through the indicator disc, the lining plate, the retainer ring and the driving shaft sleeve generate friction force through the pretightening force of the screw, synchronous rotation is kept, and the specific position of the valve can be indicated through an arrow of the indicator disc; if the indicating angle of the arrow needs to be adjusted, the screw can be unscrewed, at this time, the inner lining ring and the indicating disc can be easily rotated because the lining plate, the retainer ring and the driving shaft sleeve have no friction force, the driving shaft sleeve cannot rotate, the pointer is rotated to a required position, and the screw is screwed again.

When realizing locking state through the screw, the retaining ring butt in the annular lateral wall, the instruction board butt simultaneously in drive axle sleeve tip to ensure that the drive axle sleeve can drive the synchronous rotation of instruction board.

Effectively avoid the dust to get into in the reducing gear box through the hem.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

fig. 3 is an enlarged view of a portion a of fig. 2.

Names of the corresponding components indicated by the numbers in the drawings: 1. a reduction box body; 2. a worm gear; 3. a worm; 4. A drive shaft sleeve; 5. an indicator panel; 6. a ring groove; 7. an inner liner plate; 8. a retainer ring; 9. a threaded hole; 10. A through hole; 11. a screw; 12. and (7) folding edges.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the drawings and the specific embodiments.

As shown in fig. 1 to 3, the utility model provides a can adjust reducing gear box of instruction at will, including reducing gear box 1, worm wheel 2, worm 3, with worm wheel 2 fixed connection's drive axle sleeve 4, reducing gear box 1 rotates and is connected with indicator panel 5, and indicator panel 5 is circular setting and indicator panel 5 surface is provided with the instruction arrow point, indicator panel 5 rotation axial is concentric setting with drive axle sleeve 4. The edge of the indicating disc 5 is provided with a folding edge 12 which can be attached to the reduction gearbox body 1, and dust is effectively prevented from entering the reduction gearbox body 1 through the folding edge 12.

Be provided with adjustable fixed knot between indicator disk 5 and drive axle sleeve 4 and construct, adjustable fixed knot constructs including seting up in the annular 6 of 4 inner walls of drive axle sleeve, set up retaining ring 8 in annular 6, be located 4 inner chambers of drive axle sleeve and with 5 bolted connection's of indicator disk interior bushing 7, 8 parts of retaining ring are outstanding in 4 inner walls of drive axle sleeve, just interior bushing 7 can the butt towards the terminal surface of indicator disk 5 retaining

ring

8, 6 width in the annular is greater than 8 thickness of retaining ring. In addition, in this embodiment, the inner lining plate 7 is provided with four threaded holes 9, the indicating plate 5 is provided with four through holes 10 corresponding to the threaded holes 9 one by one, and screws 11 are arranged between the threaded holes 9 and the through holes 10. Through the structure, the screw passes through the indicating disc and is connected to the threaded hole 9 of the inner lining ring, the lining plate 7, the check ring 8 and the driving shaft sleeve 4 generate friction force through the pretightening force of the screw, synchronous rotation is kept, and the specific position of the valve can be indicated through an arrow of the indicating disc; if the indicating angle of the arrow needs to be adjusted, the screw can be unscrewed, at this time, because the lining plate 7 and the check ring 8 have no friction force with the driving shaft sleeve 4, the inner lining ring and the indicating disc can be easily rotated, the driving shaft sleeve 4 cannot rotate, the pointer is rotated to the required position, and the screw is tightened again.

In this embodiment, an end surface of the driving sleeve 4 facing the indicator panel 5 protrudes from the reduction gearbox housing 1 and can abut against the indicator panel 5. When the locking state is realized through the screws, the retainer ring 8 abuts against the side wall of the annular groove 6, and the indicating disc 5 abuts against the end part of the driving shaft sleeve 4, so that the driving shaft sleeve 4 can drive the indicating disc 5 to synchronously rotate.

In this document, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, only for the sake of clarity of the technical solution and convenience of description, and thus, should not be construed as limiting the present invention.

In this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, which may include other elements not expressly listed in addition to those listed.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a can adjust reducing gear box of instruction at will, includes reducing gear box (1), worm wheel (2), worm (3), with worm wheel (2) fixed connection's drive axle sleeve (4), its characterized in that: the reduction gearbox box body (1) is rotatably connected with an indicating disc (5), the rotating axial direction of the indicating disc (5) and the driving shaft sleeve (4) are concentrically arranged, an adjustable fixing structure is arranged between the indicating disc (5) and the driving shaft sleeve (4), and the adjustable fixing structure comprises a check ring (8) which is connected with the indicating disc (5) and can be driven by the driving shaft to drive the driving shaft sleeve (4) to rotate synchronously with the indicating disc (5).

2. A reduction gearbox with optionally adjustable indication according to claim 1, characterized in that: adjustable fixed knot constructs still including seting up in annular (6) of drive axle sleeve (4) inner wall, being located drive axle sleeve (4) inner chamber and with indicating disc (5) bolted connection's interior bushing plate (7), retaining ring (8) are located annular (6), just interior bushing plate (7) can the butt towards the terminal surface of indicating disc (5) retaining ring (8), annular (6) width is greater than the thickness of retaining ring (8).

3. A reduction gearbox with optionally adjustable indication according to claim 2, characterized in that: the inner lining plate (7) is provided with a plurality of threaded holes (9), the indicating disc (5) is provided with a plurality of through holes (10) which correspond to the threaded holes (9) one by one, and screws (11) are arranged between the threaded holes (9) and the through holes (10).

4. A reduction gearbox with optionally adjustable indication according to claim 1, characterized in that: the end face, facing the indicator disc (5), of one end of the driving shaft sleeve (4) protrudes out of the reduction gearbox body (1) and can abut against the indicator disc (5).

5. A reduction gearbox with optionally adjustable indication according to claim 4, characterized in that: the indicating disc (5) is arranged in a circular shape, and a folding edge (12) which is attached to the side wall of the reduction gearbox body (1) is arranged at the edge of the indicating disc (5).