CN202781085U - Multifunctional electric wrench - Google Patents

Multifunctional electric wrench Download PDF

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Publication number
CN202781085U
CN202781085U CN 201220390834 CN201220390834U CN202781085U CN 202781085 U CN202781085 U CN 202781085U CN 201220390834 CN201220390834 CN 201220390834 CN 201220390834 U CN201220390834 U CN 201220390834U CN 202781085 U CN202781085 U CN 202781085U
Authority
CN
China
Prior art keywords
output shaft
steel ball
clutch
transmission shaft
power transmission
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN 201220390834
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Chinese (zh)
Inventor
李坚忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ZHEJIANG SINO-CREATE ELECTRICAL APPLIANCE MANUFACTURING Co Ltd
Original Assignee
ZHEJIANG SINO-CREATE ELECTRICAL APPLIANCE MANUFACTURING Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ZHEJIANG SINO-CREATE ELECTRICAL APPLIANCE MANUFACTURING Co Ltd filed Critical ZHEJIANG SINO-CREATE ELECTRICAL APPLIANCE MANUFACTURING Co Ltd
Priority to CN 201220390834 priority Critical patent/CN202781085U/en
Application granted granted Critical
Publication of CN202781085U publication Critical patent/CN202781085U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model discloses a multifunctional electric wrench comprising an output shaft, a transmission shaft, a steel ball (5), an impact head (6), a compression spring (7), a machine case (8), a gear speed-reducing box (9) and a motor (10). The head portion of the transmission shaft (4) is inserted into an inserted hole of the end face of the output shaft (1). The combined part between the transmission shaft (4) and the output shaft (1) is provided with a clutch mechanism which comprises a shift lever (2) and a clutch steel ball (3). A shift lever center hole (12) is arranged in the output shaft (1). A clutch steel ball hole (14) is arranged in the transmission shaft (4) along the radial direction. The shaft lever (2) is arranged in the shift lever center hole (12) in a way of moving along the axial direction. The clutch steel ball (3) is installed in the clutch steel ball hole (14) of the transmission shaft (4). A clutch groove (15) matched with the clutch steel ball (3) is arranged in the inserted hole of the end face of the output shaft (1). The shift level (2) extends into a center hole of the transmission shaft (4). Due to the structure, the multifunctional electric wrench has the advantages of being simple and reasonable in structure, convenient to operate and use, stable and reliable in work, interchangeable between impact and non-impact, and multi-purpose and the like.

Description

Multifunction electric spanner
Technical field
The invention relates to a kind of electric tool, particularly a kind ofly not only can use but also can be used as the Multifunction electric spanner that electric drill, electric impact drill and electric screw driver use by electric wrench.
Background technology
Electric impact wrench is a kind ofly to provide power by motor, drives output shaft by gear reduction box, beater mechanism and produces the electric tool that impact torsion is come Quick dismounting bolt or nut.Chinese patent discloses a kind of electric wrench, its patent No. is 200520069268.7, it comprises gear housing, hood with handle, be connected to the motor in the hood, gear reduction and impact sleeve and driving end, gear housing is fixedly connected with hood by middle cover, gear reduction comprises the gear shaft that is connected on middle cover and the gear housing, be connected to the duplicate gear on the gear shaft, supporting is connected to the main shaft on middle cover and the driving end and is connected to reduction gearing on the main shaft, duplicate gear meshes with motor output gear axle and reduction gearing respectively, in the herringbone grooves on the main shaft periphery wall ball is housed, and with the impact sleeve internal perisporium on the corresponding clamping of groove, in the U-lag of impact sleeve ball is housed, be enclosed within on the main shaft spring respectively with reduction gearing and ball end face on catch join, the fixture block of impact sleeve end face is with the clamping of driving end end face or separate.It has simple in structure, the characteristics such as technique reasonable, reliable operation, has alleviated staff's labour intensity, has improved the operating efficiency of assembling-disassembling bolt or nut.
But in use have the following disadvantages: the one, existing electric impact wrench mainly is fit to dismounting larger bolt or nut, and when the less bolt of dismounting or nut, because impulsive force is larger, bolt or nut damage easily.The 2nd, the electric impact wrench function singleness can only be used for assembling-disassembling bolt or nut, cannot use as other electric tools.For the problems referred to above, many manufacturers and knowledgeable people develop and develop, but not yet have so far comparatively ideal product to emerge.
Summary of the invention
The defects that exists for overcoming existing electric impact wrench, the purpose of the invention provide a kind of simple and reasonable, easy for operation, impact and non-impact can be exchanged, the Multifunction electric spanner of a tractor serves several purposes.
The invention solves the problems of the technologies described above the technical scheme that adopts, it comprises output shaft, power transmission shaft, steel ball, impact head, Compress Spring, casing, gear reduction box, motor, the head of described power transmission shaft inserts in the end face jack of output shaft, joint portion at power transmission shaft and output shaft is provided with clutch, this mechanism comprises driving lever and clutch steel ball, output shaft is provided with the driving lever centre bore, power transmission shaft radially be provided with the clutch steel ball hole, driving lever can be arranged on the driving lever centre bore with moving axially, the clutch steel ball is installed on the clutch steel ball hole of power transmission shaft, the end face jack of output shaft is provided with the clutch slot that matches with the clutch steel ball, and driving lever extend in the centre bore of power transmission shaft.
Described driving lever is arranged between two clutch steel balls.
Described output shaft is provided with the notch that matches with the driving lever operation handlebar.
After adopting said structure, compared with prior art have the following advantages.
The one, owing to be provided with clutch in the joint portion at power transmission shaft and output shaft, the invention can have the kind of drive of impact and two kinds of mode of operations of the non-impact kind of drive by controlling clutch; When impacting the kind of drive, the energy that Compress Spring gathers discharged in the utmost point short time, and impact head outputs to output shaft with very large impact torsion, makes workpiece be subject to larger work torsion, thereby reaches the purpose of Quick dismounting bolt and nut; During the non-impact kind of drive, the clutch steel ball links together output shaft and power transmission shaft, and Compress Spring can not gather strength, and impact head can not produce impulsive force, and the work torque transmission is steady, so just can avoid primary screw and bradawl head to damage.
The 2nd, the output shaft sleeve of tightening up a screw can exchange with drill chuck, when when impacting kind of drive work, can be used as electric impact drill and uses; When with the non-impact kind of drive, can with being that electric drill and screwdriver use, expand the range of application of the invention, the purpose of really accomplishing a tractor serves several purposes.
Description of drawings
Fig. 1 is the invention structural representation.
Fig. 2 is the structural representation that the kind of drive is impacted in the invention.
Fig. 3 is the A-A cut-away view of the invention Fig. 2.
Fig. 4 is the structural representation of the non-impact kind of drive of the invention.
Fig. 5 is the B-B cut-away view of the invention Fig. 4.
1 output shaft wherein, 2 driving levers, 3 clutch steel balls, 4 power transmission shafts, 5 steel balls, 6 impact heads, 7 Compress Springs, 8 casings, 9 gear reduction boxs, 10 motors, 11 sleeves or drill chuck, 12 driving lever centre bores, 13 notches, 14 clutch steel ball holes, 15 clutch slot.
The specific embodiment
Shown in Figure 1, specific embodiments for a kind of Multifunction electric spanner of the invention, it comprises output shaft 1, power transmission shaft 4, steel ball 5, impact head 6, Compress Spring 7, casing 8, gear reduction box 9, motor 10, output shaft 1 is T shape, the T shape end face of output shaft 1 is with the concavo-convex draw-in groove clamping of impact head 6 end faces or separate, impact head 6 can be arranged on the power transmission shaft 4 by steel ball 5 with moving axially, Compress Spring 7 is arranged between impact head 6 and the gear reduction box 9, be fixed with sleeve or drill chuck 11 on the output shaft 1, the head of described power transmission shaft 4 inserts in the end face jack of output shaft 1, joint portion at power transmission shaft 4 and output shaft 1 is provided with clutch, this mechanism comprises driving lever 2 and clutch steel ball 3, output shaft 1 is provided with driving lever centre bore 12, power transmission shaft 4 radially be provided with clutch steel ball hole 14, driving lever 2 can be arranged on the driving lever centre bore 12 with moving axially, clutch steel ball 3 is installed on the clutch steel ball hole 14 of power transmission shaft 4, the end face jack of output shaft 1 is provided with the clutch slot 15 that matches with clutch steel ball 3, the head of driving lever 2 is conical, the taper shape of driving lever 2 heads extend in the centre bore of power transmission shaft 4 and is between two clutch steel balls 3, moving 2 can promote clutch steel ball 3 make output shaft 1 and power transmission shaft 4 in conjunction with or separate; Described output shaft 1 is provided with the notch 13 that matches with driving lever 2 operation handlebars.
The invention course of work is as follows: when with the work of the impact kind of drive, driving lever 2 is before pushed away, clutch steel ball 3 all enters in the clutch steel ball hole 14 of power transmission shaft 4, clutch steel ball 3 separates with the clutch slot 15 on the output shaft 1, output shaft 1 is in separable state with power transmission shaft 4, as shown in Figures 2 and 3; When motor 10 passes through gear reduction box 9, when power transmission shaft 4 drives impact head 6 rotary work, impact head 6 drives output shafts 1 high speed rotating outputting torsion and tightens or unclamp bolt or nut, when coupling mechanism force increases greater than output shaft 1 outputting torsion gradually, impact head 6 gathers strength by the compressing Compress Spring 7 that bounces back steel ball 5 and cooperating of impact head keyway and breaks away from output shaft 1, the moment that breaks away from output shaft 1 when impact head 6, impact head 6 continues High Rotation Speed, Compress Spring 7 discharges elastic force in the extremely short time, when making impact head 6 with output shaft 1 clamping, the kinetic energy of impact head 6 is become impact torsion be delivered on the output shaft 1, thereby make bolt or nut be subject to larger work torsion.Just can be used as the electric impact drill use if mix drill chuck with above-mentioned working method at output shaft 1.
When with the work of the non-impact kind of drive, driving lever 2 is by pusher, and clutch steel ball 3 all enters under the promotion of driving lever 2 in the clutch slot 15 on the output shaft 1, and clutch steel ball 3 links together output shaft 1 and power transmission shaft 4, as shown in Figure 4 and Figure 5; When motor 10 passes through gear reduction box 9, power transmission shaft 4 drive impact heads 6 rotary work, impact head 6 drives simultaneously the output shaft 1 high speed rotating outputting torsion that is connected as a single entity by clutch steel ball 3 and tightens or unclamp bolt or nut, because output shaft 1 links together all the time with power transmission shaft 4, Compress Spring 7 can not gather strength, impact head 6 can not produce impact torsion and be applied on the output shaft 1, thereby make bolt or nut can not be subject to larger work torsion, this working method is relatively suitable tightens or unclamps stove bolt and primary nut.Just can be used as the electric drill use if mix drill chuck at output shaft 1, just can be used as the electric screw driver use if mix driver bit at output shaft 1.

Claims (3)

1. Multifunction electric spanner, comprise output shaft (1), power transmission shaft (4), steel ball (5), impact head (6), Compress Spring (7), casing (8), gear reduction box (9), motor (10), it is characterized in that: the head of described power transmission shaft (4) inserts in the end face jack of output shaft (1), joint portion at power transmission shaft (4) and output shaft (1) is provided with clutch, this mechanism comprises driving lever (2) and clutch steel ball (3), output shaft (1) is provided with driving lever centre bore (12), power transmission shaft (4) radially be provided with clutch steel ball hole (14), driving lever (2) can be arranged on the driving lever centre bore (12) with moving axially, clutch steel ball (3) is installed on the clutch steel ball hole (14) of power transmission shaft (4), the end face jack of output shaft (1) is provided with the clutch slot (15) that matches with clutch steel ball (3), and driving lever (2) extend in the centre bore of power transmission shaft (4).
2. Multifunction electric spanner according to claim 1, it is characterized in that: described driving lever (2) is arranged between two clutch steel balls (3).
3. Multifunction electric spanner according to claim 1 and 2, it is characterized in that: described output shaft (1) is provided with the notch (13) that matches with driving lever (2) operation handlebar.
CN 201220390834 2012-08-09 2012-08-09 Multifunctional electric wrench Expired - Lifetime CN202781085U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220390834 CN202781085U (en) 2012-08-09 2012-08-09 Multifunctional electric wrench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220390834 CN202781085U (en) 2012-08-09 2012-08-09 Multifunctional electric wrench

Publications (1)

Publication Number Publication Date
CN202781085U true CN202781085U (en) 2013-03-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201220390834 Expired - Lifetime CN202781085U (en) 2012-08-09 2012-08-09 Multifunctional electric wrench

Country Status (1)

Country Link
CN (1) CN202781085U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825581A (en) * 2012-08-09 2012-12-19 浙江信源电器制造有限公司 Multifunctional electric wrench
CN109620347A (en) * 2019-01-08 2019-04-16 上海市第人民医院 Percussion mechanism is used in a kind of operation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102825581A (en) * 2012-08-09 2012-12-19 浙江信源电器制造有限公司 Multifunctional electric wrench
CN109620347A (en) * 2019-01-08 2019-04-16 上海市第人民医院 Percussion mechanism is used in a kind of operation

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CX01 Expiry of patent term

Granted publication date: 20130313

CX01 Expiry of patent term