CN206200849U - A kind of lithium surge spanner - Google Patents

Abstract

The utility model belongs to the technical field of impact wrench, in particular to a lithium battery impact wrench, comprising an impact wrench housing and an impact wrench base, the impact wrench base includes a battery pack, and the impact wrench housing includes a The motor is driven by the motor, the intermediate shaft and the output shaft are connected to each other, the axes of the intermediate shaft and the output shaft are coincident, the battery pack is equipped with a lithium battery, and the impact wrench housing includes a timer and An intermittent controller, the timer accumulates the rotation time in the rotating state, and the intermittent controller controls the impact wrench to stop when the rotation time is greater than a preset value. The utility model discloses a lithium battery impact wrench which is easy to assemble, easy to disassemble, has good sealing performance, is convenient for operators to operate, and reduces the labor intensity of the operators.

Description

A lithium battery impact wrench

technical field

The utility model relates to a lithium battery impact wrench. The utility model belongs to the technical field of an impact wrench.

Background technique

An impact wrench is a tool used to drive screws, bolts, clamps, etc. An impact wrench generally includes a drive motor, a gear reduction mechanism, and an impact device, wherein the impact device includes an active impact block, a passive impact block, a working shaft, and the like. The active impact block is rotationally driven by the output shaft of the gear reduction mechanism, and the passive impact block can be engaged with the active impact block to be rotationally driven. The working shaft is connected to the passive impact block and is driven to rotate by the passive impact block, wherein the active impact block can be selectively disengaged from the passive impact block when the load on the working shaft increases to a certain value, and then driven by the rotation of the output shaft The bottom re-engages with the passive impact block, thereby exerting intermittent impact on the working shaft in the direction of rotation.

The structure of the existing impact wrench can only change the motor speed by electronically adjusting the input current to realize the adjustment of the impact torque. On the host of the impact wrench or externally connected, this installation method limits the capacity and power of the battery pack, the battery pack’s battery life is short, the host is heavy, and workers working at heights are labor-intensive and prone to fatigue.

To sum up, in order to solve the problems existing in the prior art, there is an urgent need to invent a lithium battery impact wrench that is easy to assemble, easy to disassemble, has good sealing performance, is convenient for the operator to operate, and reduces the labor intensity of the operator.

Utility model content

The utility model provides a lithium battery impact wrench which is convenient to assemble, easy to disassemble, good in sealing performance, convenient for operators to operate, and reduces the labor intensity of the operators, so as to solve the problems existing in the prior art.

In order to solve the problems of the technologies described above, the technical solution of the utility model is:

A lithium battery impact wrench, comprising an impact wrench housing and an impact wrench base, the impact wrench base includes a battery pack, the impact wrench housing includes a motor located in the impact wrench housing, driven by the motor and connected to each other The intermediate shaft and the output shaft, the axes of the intermediate shaft and the output shaft are coincident, the battery pack is equipped with a lithium battery, the impact wrench housing includes a timer and an intermittent controller, and the timer accumulatively enters the rotation The rotation time of the state, the intermittent controller controls the impact wrench to stop when the rotation time is greater than a preset value.

The impact wrench housing and the impact wrench base are detachably connected through a snap-in connection device. The snap-in connection device includes a host connecting piece bracket and a host bracket spring. The impact wrench housing is also provided with a battery pack Unlock button.

The output shaft includes a steel sleeve, a first O-ring and a rubber sleeve sequentially from the inside to the outside, and the output shaft gasket is connected to the side.

The motor is connected with a gear box and a motor gear. A bearing is connected between the gear box and the motor gear, and a wool washer is arranged on the side of the bearing. A second O-ring is connected at the connection between the motor and the intermediate shaft.

The bottom end of the impact wrench housing is provided with a plug, and the plug is electrically connected to the battery pack.

The base of the impact wrench is provided with a power indicator light, which is electrically connected to the battery pack.

The utility model has the following characteristics and beneficial effects:

The utility model relates to a lithium battery impact wrench by setting the impact wrench shell and the impact wrench base, the battery pack is installed on the impact wrench base, the battery pack is installed with a lithium battery, the lithium battery has a relatively long service life, and has high power Endurance, green and environmental protection, regardless of production, use and scrap, it does not contain or produce any toxic and harmful heavy metal elements and substances such as lead, mercury, and cadmium. The size and installation of the battery pack are not limited by the shell of the impact wrench, which can increase the capacity of the battery pack, prolong the battery life, facilitate the operation of the operator, and reduce the labor intensity of the operator. In the case of insufficient batteries, Easy to replace and easy to use.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are only some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without any creative effort.

Fig. 1 is the structural representation of a kind of lithium battery impact wrench of the present utility model;

Fig. 2 is a partially enlarged Fig. 1 of a lithium battery impact wrench of the present invention;

Fig. 3 is a partial enlarged view 2 of a lithium battery impact wrench of the present invention.

In the figure, 1-output shaft; 2-first O-ring; 3-rubber sleeve; 4-steel sleeve; 5-impact wrench housing; 6-output shaft gasket; 7-intermediate shaft; 8-motor gear; 9-Second O-ring; 10-Bearing; 11-Wool washer; 12-Gear box; 13-Motor; .

detailed description

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model will be further described. It should be noted here that the descriptions of these implementations are used to help understand the utility model, but are not intended to limit the utility model. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute conflicts with each other.

Referring to Fig. 1, Fig. 2 and Fig. 3, a schematic structural diagram of a lithium electric impact wrench, a partially enlarged Fig. 1 and a partially enlarged Fig. 2 are shown. A lithium battery impact wrench includes an impact wrench housing 5 and an impact wrench base, the impact wrench base includes a battery pack 17, the impact wrench housing 5 includes a motor 13 inside the impact wrench housing 5, and is The intermediate shaft 7 and the output shaft 6 driven by the motor 13 and connected to each other, the battery pack 17 is equipped with a lithium battery, the impact wrench housing 5 includes a timer and an intermittent controller, and the timer accumulates the time of entering the rotating state rotation time, the intermittent controller controls the impact wrench to stop when the rotation time is greater than a preset value.

The timer can also be built into the impact wrench housing 5, which detects that the impact wrench enters the rotation state from the impact state and starts counting, thereby accumulating the rotation time of the impact wrench after entering the rotation state, and counting the rotation time sent to the Intermittent Controller. The intermittent controller receives the aforementioned rotation time signal, and controls the impact wrench to stop when the rotation time is greater than a preset value. The way to control the shutdown can be to disconnect the electric energy sent from the battery pack to the motor, etc., which facilitates the use of the operator and improves the service life of the impact wrench. In other embodiments, the impact wrench has an overload protection function, that is, when the operating current monitored by the current monitoring unit is greater than a maximum current value, it is judged that the impact wrench is overloaded, and when the overload time is greater than a preset value, the intermittent controller also controls The impact wrench stops.

The impact wrench housing 5 and the impact wrench base are detachably connected through a snap-in connection device, and the snap-in connection device includes a host connecting piece bracket 14 and a host bracket spring 15, and the impact wrench housing 5 is also A battery pack unlock button 16 is provided. By pressing the unlocking button 16 of the battery pack, the host support spring 15 pops out the base of the impact wrench, disconnecting the impact wrench housing 5 from the base of the impact wrench.

The output shaft 1 includes a steel sleeve 4 , a first O-ring 2 and a rubber sleeve 3 sequentially from the inside to the outside, and an output shaft gasket 6 is connected to the side.

The motor 13 is connected with a gear box 12 and a motor gear 8 . A bearing 10 is connected between the gear box 12 and the motor gear 8 , and a wool washer 11 is arranged on the side of the bearing 10 . A second O-ring 9 is connected to the connection between the motor 13 and the intermediate shaft 7 . The setting of the first O-ring 2 and the second O-ring 9 improves the use range of the impact wrench under the condition of water, and prevents rainwater or working water from entering the impact wrench and damaging the impact wrench.

A plug is provided at the bottom of the impact wrench housing 5 , and the plug is electrically connected to the battery pack 17 .

The base of the impact wrench is provided with a power indicator light, which is electrically connected to the battery pack. The setting of the power indicator light ensures the display of power loss during the use of the battery pack.

A lithium battery impact wrench related to the utility model is provided with a detachably connected impact wrench housing 5 and an impact wrench base, and a battery pack 17 is installed on the impact wrench base. It has a relatively long life, high power tolerance, and is environmentally friendly. Regardless of production, use, or scrap, it does not contain or produce any toxic and harmful heavy metal elements and substances such as lead, mercury, and cadmium. The size and installation of the battery pack 17 are not limited by the impact wrench housing, which can increase the capacity of the battery pack, prolong the life of the battery pack, facilitate the operation of the operator, and reduce the labor intensity of the operator. , easy to replace, very convenient to use.

The embodiments of the utility model have been described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the described embodiments. For those skilled in the art, without departing from the principle and spirit of the utility model, various changes, modifications, replacements and modifications to these embodiments still fall within the protection scope of the utility model.

Claims (6)

1. a kind of lithium surge spanner, it is characterised in that：Including impact wrench housing and impact wrench base, the impact wrench Base includes battery bag, and the impact wrench housing includes the motor in the impact wrench housing, driven by the motor The axial line of jackshaft and output shaft dynamic, be connected with each other, the jackshaft and output shaft overlaps, and the battery bag is provided with lithium Battery, the impact wrench housing includes timer and discontinuity controller, and the timer adds up to enter the rotation of rotation status Time, the discontinuity controller controls the impact wrench to shut down when the rotational time is more than a preset value.

2. a kind of lithium surge spanner according to claim 1, it is characterised in that：The impact wrench housing and impact are pulled At hand seat carries out detachable connection by buckle-type attachment means, and the buckle-type attachment means include that main frame connects plate rack With host rack spring, the impact wrench housing is additionally provided with battery bag unblock button.

3. a kind of lithium surge spanner according to claim 1, it is characterised in that：The output shaft is wrapped successively from the inside to the outside Steel bushing, the first O-ring and rubber sleeve are included, side is connected with output shaft pad.

4. a kind of lithium surge spanner according to claim 1 or 3, it is characterised in that：The motor connection has gear-box And motor gear, bearing is connected between the gear-box and motor gear, the bearing side is provided with wool packing ring, described Motor and middle shaft connection place are connected with the second O-ring.

5. a kind of lithium surge spanner according to claim 4, it is characterised in that：The impact wrench housing bottom is set There is plug, the plug is electrically connected with battery bag.

6. a kind of lithium surge spanner according to claim 1 or 5, it is characterised in that：The impact wrench base is provided with Battery capacity indication lamp, battery capacity indication lamp is electrically connected with battery bag.