CN220389277U - Worm gear automatic wrench - Google Patents

Abstract

The utility model particularly relates to an automatic worm and gear wrench which comprises a shell, wherein a worm is arranged in the shell, two groups of worm threads are arranged on the worm, each group of worm threads is respectively meshed with a worm wheel with the same specification, two worm wheels are meshed with the same wrench fluted disc on one side far away from the worm, the wrench fluted disc can rotate by the axis of the wrench fluted disc in the shell, a wrench clamping groove is arranged in the center of the wrench fluted disc, a wrench access port which is convenient for a workpiece to enter and exit from the handle clamping groove is formed in the center of the wrench fluted disc, a shell access port which is convenient for the workpiece to enter the wrench clamping groove is formed in the shell, and one end of the worm far away from the worm wheel is connected with a driver. The utility model has simple and reasonable structure, realizes automatic fastening or unscrewing of the nut by driving the screw turbine to drive the wrench fluted disc to rotate, avoids the trouble of frequent repeated actions of manual rotation wrench, is safe and reliable, is convenient to use and easy to maintain, and has good popularization and use values.

Description

Worm gear automatic wrench

Technical Field

The utility model relates to the field of automatic wrenches, in particular to a worm gear automatic wrench.

Background

At present, nuts densely arranged on industrial equipment are more and more common, such as a bolt and nut assembly and the like are connected to a pipeline butt flange, the fastening or unscrewing of the nuts is usually realized by adopting a manual open spanner, the nuts are clamped by the open spanner during operation, the nuts are screwed in the direction perpendicular to the axis of the nuts, and as the nuts are densely arranged, only frequent intermittent equidirectional rotation with small angle can be performed during screwing, and the nuts are time-consuming, labor-consuming and inconvenient to operate.

Disclosure of Invention

The technical problem to be solved by the utility model is to overcome the defects of the technology and provide the automatic wrench for the worm gear.

The utility model provides an automatic spanner of worm gear, includes the shell, be equipped with the worm in the shell, be equipped with two sets of worm screw on the worm, every worm screw of group meshes respectively and has a worm wheel that the specification is the same, two the worm wheel is keeping away from worm one side meshing in same spanner fluted disc, spanner fluted disc can rotate with self axis in the shell, spanner fluted disc center department is equipped with spanner draw-in groove and has seted up the spanner access & exit that makes things convenient for work piece business turn over handle draw-in groove, be equipped with the shell access & exit that makes things convenient for the work piece to get into spanner draw-in groove on the shell, the one end that the worm was kept away from to the worm wheel is connected with the driver.

Further, the driver is configured with a power supply.

Further, the shell comprises a spanner shell for placing the worm wheel and the spanner fluted disc and a handle shell for placing the worm, the driver and the power supply, and a circular track for rotating the spanner fluted disc is arranged on the spanner shell.

Further, a bearing is arranged between the worm and the handle shell, and the driver is in transmission connection with the worm.

Further, the driver adopts a motor.

Further, the outer part of the handle shell is provided with anti-slip stripes.

Further, a plurality of control keys are arranged on the handle shell.

Further, each worm wheel is rotatably mounted to the wrench housing via a central shaft.

The utility model has the advantages that: the utility model has simple and reasonable structure, and the screw turbine is driven by the driver to drive the wrench fluted disc to rotate so as to realize automatic fastening or unscrewing of the nuts, thereby avoiding the trouble of frequent repeated actions of manual rotation wrench and being beneficial to improving the fastening or unscrewing of the nuts in the densely arranged pipelines; the open spanner in the prior art is changed from intermittent small-angle rotation into continuous rotation, and can be changed into electric fastening or unscrewing, and particularly, the open spanner is more convenient to use when pipelines are densely arranged or arranged in multiple layers; the utility model has reasonable design, simple structure, safety, reliability, convenient use, easy maintenance and good popularization and use value.

Drawings

FIG. 1 is a schematic view of an automatic worm gear wrench of the present utility model;

FIG. 2 is a schematic view of the inside of an automatic worm gear wrench according to the present utility model;

FIG. 3 is a schematic cross-sectional view of a worm gear installation of an automatic worm gear wrench of the present utility model;

FIG. 4 is a schematic diagram showing a variation of the use of the worm gear automatic wrench of the present utility model;

fig. 5 is a schematic view of an embodiment of a worm gear automatic wrench according to the present utility model.

As shown in the figure: 1. a housing; 2. a worm; 3. a worm thread; 4. a worm wheel; 5. a spanner fluted disc; 6. a spanner clamping groove; 7. a wrench access opening; 8. a housing access opening; 9. a driver; 10. a circular track; 11. a bearing; 12. anti-slip stripes; 13. a control key; 14. a power supply; 101. a wrench housing; 102. a handle housing; 401. a central axis.

Detailed Description

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the embodiments of the present utility model, if a feature is referred to as being "disposed", "fixed", "connected" or "mounted" on another feature, it can be directly disposed, fixed or connected to the other feature or be indirectly disposed, fixed or connected or mounted on the other feature.

In the description of the embodiments of the present utility model, if "several" is referred to, it means more than one, if "multiple" is referred to, it is understood that the number is not included if "greater than", "less than", "exceeding", and it is understood that the number is included if "above", "below", "within" is referred to. If reference is made to "first", "second" it is to be understood as being used for distinguishing technical features and not as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

The present utility model will be described in further detail with reference to the accompanying drawings.

The utility model provides an automatic spanner of worm gear, includes shell 1, be equipped with worm 2 in the shell 1, be equipped with two sets of worm screw thread 3 on the worm 2, every worm screw thread 3 of group meshes respectively and has a worm wheel 4 that the specification is the same, two worm wheel 4 is keeping away from worm 2 one side meshing in same spanner fluted disc 5, spanner fluted disc 5 can rotate with self axis in shell 1, spanner fluted disc 5 center department is equipped with spanner draw-in groove 6 and has seted up the spanner access 7 that makes things convenient for work piece business turn over spanner draw-in groove 6, be equipped with the shell access 8 that makes things convenient for work piece to get into spanner draw-in groove 6 on the shell 1, the one end that worm wheel 4 was kept away from to worm 2 is connected with driver 9.

The driver 9 is provided with a power supply 14, which may be a rechargeable lithium battery.

The shell 1 comprises a wrench shell 101 for placing the worm wheel 4 and the wrench fluted disc 5 and a handle shell 102 for placing the worm 2, the driver 9 and the power supply, wherein a circular track 10 for rotating the wrench fluted disc 5 is arranged on the wrench shell 101, so that the wrench fluted disc 5 can rotate conveniently.

The bearing 11 is arranged between the worm 2 and the handle shell 102, and the driver 9 is in transmission connection with the worm 2, so that the stability of the rotation of the worm 2 is effectively ensured, and the jumping is reduced.

The driver 9 employs an electric motor.

The handle housing 102 is provided with anti-slip stripes 12 on the exterior thereof to enhance comfort of use.

The handle shell 102 is provided with a plurality of control keys 13, which are convenient for controlling the working state of the driver.

Each of the worm gears 4 is rotatably mounted to the wrench housing 101 through a central shaft 401 as shown in fig. 4.

When the utility model is specifically used, the hexagonal nut is taken as an example, the wrench clamping groove 6 is a hexagonal clamping groove, if the nut is in threaded connection with a shorter screw rod, the wrench clamping groove 6 of the wrench fluted disc 5 is directly buckled on the nut, and then the control key 13 is operated to control the working state of the driver 9;

if the nut is screwed on a relatively long screw rod or the wrench fluted disc 5 cannot be directly buckled on the nut, the wrench inlet and outlet 7 and the shell inlet and outlet 8 of the wrench fluted disc 5 can be adjusted and overlapped first, as shown in the left side view of fig. 4, the screw rod enters the wrench clamping groove 6 along the overlapped wrench inlet and outlet 7 and the shell inlet and outlet 8, then moves along the axis direction of the screw rod, the wrench clamping groove 6 is buckled on the corresponding nut, and finally the control key 13 is operated to control the working state of the driver 9, so that the nut is fastened or unscrewed.

In addition, because the specification of hexagonal nut is various, for convenient to use, can regard as a part with being equipped with worm 2, turbine 4, spanner fluted disc 5 and bearing 11 and its outside casing, regard as a part with driver 9 and power 14 and its outside casing, two parts can dismantle the connection, be equipped with worm 2, turbine 4, spanner fluted disc 5 and a part of bearing 11, can change according to the nut specification, satisfy the user demand, as shown in fig. 5, the output axle head of driver 9 passes through sleeve joint with worm 2 one end, but spiro union or joint of two parts.

The utility model and its embodiments have been described above with no limitation, and the actual construction is not limited to the embodiments of the utility model as shown in the drawings. In summary, if one of ordinary skill in the art is informed by this disclosure, a structural manner and an embodiment similar to the technical solution should not be creatively devised without departing from the gist of the present utility model.

Claims (8)

1. An automatic worm gear wrench is characterized in that: including shell (1), be equipped with worm (2) in shell (1), be equipped with two sets of worm screw thread (3) on worm (2), every worm screw thread (3) of group mesh respectively has a worm wheel (4) that the specification is the same, two worm wheel (4) are keeping away from worm (2) one side meshing in same spanner fluted disc (5), spanner fluted disc (5) can rotate around self axis in shell (1), spanner fluted disc (5) center department is equipped with spanner draw-in groove (6) and has offered spanner access (7) that make things convenient for work piece business turn over spanner draw-in groove (6), be equipped with on shell (1) and make things convenient for shell access (8) of work piece business turn over spanner draw-in groove (6), the one end that worm wheel (4) were kept away from to worm (2) is connected with driver (9).

2. The automatic worm gear wrench as claimed in claim 1, wherein: the driver (9) is provided with a power supply (14).

3. The automatic worm gear wrench as claimed in claim 2, wherein: the shell (1) comprises a wrench shell (101) for placing the worm wheel (4) and the wrench fluted disc (5) and a handle shell (102) for placing the worm (2), the driver (9) and the power supply, wherein a circular track (10) for rotating the wrench fluted disc (5) is arranged on the wrench shell (101).

4. A worm gear automatic wrench as claimed in claim 3, wherein: a bearing (11) is arranged between the worm (2) and the handle shell (102), and the driver (9) is in transmission connection with the worm (2).

5. The automatic worm gear wrench as claimed in claim 1, wherein: the driver (9) adopts an electric motor.

6. A worm gear automatic wrench as claimed in claim 3, wherein: the outer part of the handle shell (102) is provided with anti-slip stripes (12).

7. A worm gear automatic wrench as claimed in claim 3, wherein: the handle shell (102) is provided with a plurality of control keys (13).

8. A worm gear automatic wrench as claimed in claim 3, wherein: each worm wheel (4) is rotatably mounted to the wrench housing (101) through a central shaft (401).