Improved electric wrench

Abstract

The utility model belongs to the technical field of electric wrenches, and particularly relates to an improved electric wrench which comprises a wrench frame, a reduction gearbox is connected to the wrench frame, and a dust collecting component is connected to the outer side of the wrench frame and synchronously acts along with a spindle of the reduction gearbox, so that waste chips generated in the disassembly and assembly process are absorbed. The dust collecting component comprises a gearbox connected with the connecting frame, a driven belt wheel is connected to the outer side of an input shaft of the gearbox and sleeved with a transmission belt, the other end of the transmission belt is connected to a spindle of the reduction gearbox through a driving belt wheel, and the driven belt wheel synchronously acts along with the reduction gearbox. The shaft rod and the negative-pressure fan blades are driven to rotate in the dust collection box to generate negative pressure, the negative pressure acts on the corrugated cover through the negative-pressure air pipe, and sweeps generated in the disassembly and assembly process through the electric wrench can be absorbed in an auxiliary mode so as to guarantee that the working environment is clean.

Description

Technical Field

[0001] The utility model relates to the technical field of electric wrenches, in particular to an improved electric wrench. Background Art

[0002] An electric wrench is an electric tool used to tighten or loosen bolts and nuts. It is a tool for tightening high-strength bolts. It is used for initial and final tightening of large hexagonal high-strength bolts installed in steel structures, bridges, factory buildings, chemical and power generation equipment, and for initial tightening of torsion shear high-strength bolts. It is also used in applications where there are strict requirements on the torque or axial force of bolt fasteners.

[0003] To ensure the normal operation of the existing electric wrench, heat dissipation holes are opened on the side of the wrench. However, due to the unstable working environment of the wrench, dust will fly during the disassembly and assembly process and enter the interior of the device through the heat dissipation holes, causing damage to internal components. Therefore, an improved electric wrench is proposed. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and in the abstract and title of the utility model to avoid obscuring the purpose of this section, the abstract and the title of the utility model, and such simplifications or omissions shall not be used to limit the scope of the present invention.

[0005] Therefore, the purpose of the present utility model is to provide an improved electric wrench, in which the driven pulley moves synchronously with the reduction gearbox. When performing disassembly and assembly work, the gearbox moves synchronously, driving the shaft and the negative pressure fan blades to rotate in the dust collection box to generate negative pressure. The negative pressure acts on the corrugated cover through the negative pressure air duct. The waste chips generated during the disassembly and assembly process of the electric wrench can be assisted in absorption to ensure a clean working environment, effectively prevent some dust from entering the outer casing, and play a certain protective role for the internal components.

[0006] In order to solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solutions:

[0007] An improved electric wrench, comprising:

[0008] A wrench frame as a connection base frame, the wrench frame is connected to a reduction gearbox;

[0009] The dust collecting component is connected to the outside of the wrench frame and moves synchronously with the main shaft of the reduction gearbox to absorb the waste chips generated during the disassembly and assembly process.

[0010] As a preferred solution of the improved electric wrench described in the utility model, wherein: a connecting frame is connected to the outer side of the front end of the wrench frame, and the connecting frame is arranged at a position corresponding to the dust collecting component.

[0011] As a preferred solution of the improved electric wrench described in the utility model, the dust collecting component includes a gearbox connected to the connecting frame, a driven pulley is connected to the outer side of the gearbox input shaft, a transmission belt is sleeved on the driven pulley, and the other end of the transmission belt is connected to the main shaft of the reduction gearbox through a driving pulley.

[0012] As a preferred solution of the improved electric wrench described in the utility model, the output end of the gearbox is connected to the shaft, the shaft is connected to the negative pressure fan blades, and a dust box is connected to the position of the negative pressure fan blades on the outside of the connecting frame, and a dust hopper is arranged at the bottom of the dust box.

[0013] As a preferred solution of the improved electric wrench described in the utility model, the dust box input port is connected to a negative pressure air duct, the other end of the negative pressure air duct is connected to a bellows, and the bellows is arranged corresponding to the front end of the reduction box.

[0014] As a preferred solution of the improved electric wrench described in the utility model, a protective cover is connected to the outer side of the gearbox corresponding to the position of the driven pulley and the transmission belt.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The driven pulley moves synchronously with the reduction gearbox. When disassembling and assembling, the gearbox moves synchronously, driving the shaft and the negative pressure fan blades to rotate in the dust collection box to generate negative pressure. The negative pressure acts on the corrugated cover through the negative pressure air duct. The waste chips generated during the disassembly and assembly process using the electric wrench can be assisted in absorption to ensure a clean working environment, effectively prevent some dust from entering the casing, and play a certain protective role for the internal components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without inventive labor. Among them:

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of some structures;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the explosion structure.

[0021] In the figure: 100 wrench stand, 110 reduction box, 120 connecting frame, 200 dust collecting component, 210 gearbox, 211 driven pulley, 212 transmission belt, 220 shaft, 221 negative pressure fan blade, 230 dust collecting box, 231 negative pressure air duct, 232 dust collecting hopper, 240 corrugated cover, 300 protective cover. DETAILED DESCRIPTION

[0022] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0024] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0025] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0026] This utility model provides an improved electric wrench. Figure 1-3 , including a wrench frame 100, a dust collecting component 200 and a protective cover 300;

[0027] Please continue reading Figure 1 and Figure 2 , as a wrench frame connecting the base frame 100, the wrench frame 100 is connected to the reduction box 110 through a positioning bolt, the front end of the wrench frame 100 is threadedly connected to the outer side of the connecting frame 120, and the connecting frame 120 is arranged at a position corresponding to the dust collecting component 200;

[0028] Please continue reading Figure 1 and Figure 3 The dust collecting component 200 is connected to the outside of the wrench frame 100 and moves synchronously with the main shaft of the reduction gearbox 110 to absorb the waste chips generated during the disassembly and assembly process;

[0029] The dust collecting component 200 includes a gearbox 210 connected to the connecting frame 120 through an external positioning bolt, a driven pulley 211 is sleeved on the outer side of the input shaft of the gearbox 210, a transmission belt 212 is sleeved on the driven pulley 211, and the other end of the transmission belt 212 is connected to the main shaft of the reduction box 110 through a driving pulley (not marked in the figure) (the driving pulley is sleeved on the main shaft of the reduction box and moves synchronously with the reduction box), the output end of the gearbox 210 is connected to the shaft 220, and the negative pressure fan blades 221 are connected to the shaft 220, and a dust collecting box 230 is connected to the outer side of the connecting frame 120 at the position corresponding to the negative pressure fan blades 221, and the bottom of the dust collecting box 230 is connected to a dust collecting hopper 232;

[0030] The input port of the dust collecting box 230 is connected to a negative pressure air duct 231, and the other end of the negative pressure air duct 231 is connected to a bellows 240. The bellows 240 is arranged corresponding to the front end of the reduction box 110.

[0031] action:

[0032] The driven pulley 211 moves synchronously with the reduction gearbox 110. During assembly and disassembly work, the gearbox 210 moves synchronously, driving the shaft 220 and the negative pressure fan blades 221 to rotate in the dust box 230 to generate negative pressure. The negative pressure acts on the bellows 240 through the negative pressure air duct 231, and the waste generated during the assembly and disassembly process using the electric wrench can be absorbed to ensure a clean working environment.

[0033] Please continue reading Figure 1 and Figure 3 , a protective cover 300 is connected to the outer side of the gearbox 210 corresponding to the driven pulley 210 and the transmission belt 212;

[0034] Working principle: When the utility model is in use, the driven pulley 211 moves synchronously with the reduction gearbox 110. When disassembling and assembling, the gearbox 210 moves synchronously, driving the shaft 220 and the negative pressure fan blades 221 to rotate in the dust box 230 to generate negative pressure. The negative pressure acts on the corrugated cover 240 through the negative pressure air duct 231. The waste chips generated during the disassembly and assembly process using the electric wrench can be assisted in absorption to ensure a clean working environment.

[0035] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. An improved electric wrench, characterized in that: include: A wrench frame (100) is connected to the base frame, and a reduction box (110) is connected to the wrench frame (100); The dust collecting component (200) is connected to the outside of the wrench frame (100) and moves synchronously with the main shaft of the reduction box (110) to absorb the waste chips generated during the disassembly and assembly process.

2. The improved electric wrench according to claim 1, characterized in that: The front end of the wrench frame (100) is connected to a connecting frame (120) on the outside, and the connecting frame (120) is arranged at a position corresponding to the dust collecting component (200).

3. The improved electric wrench according to claim 2, characterized in that: The dust collecting component (200) comprises a gearbox (210) connected to a connecting frame (120); a driven pulley (211) is connected to the outer side of an input shaft of the gearbox (210); a transmission belt (212) is sleeved on the driven pulley (211); and the other end of the transmission belt (212) is connected to the main shaft of the reduction gearbox (110) via a driving pulley.

4. The improved electric wrench according to claim 3, characterized in that: The output end of the gearbox (210) is connected to a shaft (220), a negative pressure fan blade (221) is connected to the shaft (220), and a dust collecting box (230) is connected to the outer side of the connecting frame (120) at a position corresponding to the negative pressure fan blade (221), and a dust collecting hopper (232) is provided at the bottom of the dust collecting box (230).

5. The improved electric wrench according to claim 4, characterized in that: The input port of the dust collecting box (230) is connected to a negative pressure air duct (231), and the other end of the negative pressure air duct (231) is connected to a bellows (240), and the bellows (240) is arranged corresponding to the front end of the reduction box (110).

6. The improved electric wrench according to claim 5, characterized in that: A protective cover (300) is connected to the outer side of the gearbox (210) at positions corresponding to the driven pulley (211) and the transmission belt (212).

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