阅读说明：本技术 一种多头协同扳手 (multi-head cooperating wrench ) 是由 杨程 辛红敏 于 2019-10-31 设计创作，主要内容包括：一种多头协同扳手,包括盒体、工作臂、扳手工作头,所述工作臂有若干个,其一端可以绕所述盒体上的旋转轴旋转,所述扳手工作头安装在所述工作臂的另一端,且扳手工作头的旋转轴心线与所述盒体上的旋转轴轴心线平行。本发明涉及机械工具领域,具体涉及一种多头协同扳手,在对紧配合零部件利用螺纹顶压力克服装配面之间的摩擦力实现拆装时,能同时且协同地拧多个螺杆,以保障被拆装零件沿装配轴孔轴线方向受力的均匀性,同时提高拆装效率,使拆装过程简易便捷。(The invention relates to the field of mechanical tools, in particular to a multi-head cooperative wrench, which can simultaneously and cooperatively screw a plurality of screws when tightly-matched parts are disassembled and assembled by overcoming friction between assembling surfaces through top pressure of threads, so as to ensure the stress uniformity of the disassembled and assembled parts along the axial direction of an assembling shaft hole, improve the disassembling and assembling efficiency and ensure that the disassembling and assembling process is simple and convenient.)

1, a mechanical multi-head cooperation wrench, which comprises a rocking handle (4), a box body (5), a working arm, a bevel gear (7), a second bevel gear (8), a third bevel gear (11), a fourth bevel gear (12), a rotating shaft (10), a second rotating shaft (13), and a wrench working head (14), wherein the rotating shaft (401) of the rocking handle (4) is installed along the central axis of the box body (5), the working arm has a plurality of rotating shafts all using the axial lead of the rocking handle rotating shaft (401), the bevel gear (7) is installed on the rotating shaft (401) of the rocking handle (4), and rotates along with the rotation of the rocking handle rotating shaft (401), the second bevel gear (8) is matched with the bevel gear (7), the rotating shaft (10) is installed in the working arm and can only rotate around the axial lead thereof, end of the rotating shaft (10) is installed in the shaft hole of the gear (8), the 352 end of the wrench is installed in the shaft hole of the third bevel gear (11), and the fourth bevel gear (49312) is installed in the shaft hole (13), and the shaft hole (14) is parallel to the shaft hole (13).

2. A mechanical multi-start coordinating wrench according to claim 1, wherein said number of working arms is 2-6.

3. The mechanical multi-head cooperative wrench as claimed in claim 1, wherein the rotation of the rotating shaft portion (401) of the rocking handle (4), the th rotating shaft (10) and the second rotating shaft (13) is supported and restrained by a bearing matched with the shaft diameter of the three rotating shafts.

4. The mechanical multi-head cooperative wrench as claimed in claim 1, wherein the working arm comprises a lug (101), the lug (101) is provided with an articulated shaft hole (103), and the articulated shaft hole (103) is coaxial with the rocking handle shaft portion (401).

5. The mechanical multihead spanner as claimed in claim 4, wherein the lugs of said plurality of working arms are assembled at in a stacked manner.

6. Mechanical multiheaded cooperating wrench according to claim 1, characterised in that the wrench working head (14) is a hexagonal wrench head.

7. The mechanical multi-head cooperative wrench as claimed in claim 6, further comprising a hexagonal adapter (6), wherein the hexagonal adapter (6) is coaxially mounted on the hexagonal wrench head by means of magnetic attraction and size matching, and is used for realizing the internal and external hexagonal conversion and the specification replacement of the wrench head.

8. The mechanical multi-head cooperative wrench as claimed in claim 5, wherein the box body (5) comprises a through hole (503), a through hole extending shaft (506), a constraint plate (505) and a hollow window (509), the through hole (503) is used for installing the rotating shaft part (401) of the rocking handle (4), the through hole extending shaft (506) is concentric with the through hole (503) and extends towards the inside of the box body (5) and is matched with the hinge shaft hole (103) on the lug (101), the length of the through hole extending shaft (506) is slightly longer than the total thickness of the stacked lugs of all the working arms, the constraint plate (505) is fixed at the lower end of the through hole extending shaft (506), the upper surface of the constraint plate is tightly attached to the lower surface of the lug (301) located at the lowest level, the hollow window (509) is a square hollow formed in the outer wall of the box body (5), the number of the hollow windows (509) is the same as that of the working arms, and the hollow window (509) is tightly attached to the lower surface of the working arms along (502).

9. The mechanical multiheaded cooperative wrench according to claim 8, further comprising a fastening screw (9), wherein a plurality of threaded through holes (501) are formed in the upper surface of the box body (5), and after the fastening screw (9) is screwed into the threaded through holes (501), the lower end of the fastening screw (9) is in contact with the upper surface of the lug (101) at the uppermost layers, and all the lugs can be pressed to be tightly attached to by the fastening screw (9) and the restraint plate (5), so that the rotation freedom of the working arm is restrained.

10, kind of electrodynamic type bull spanner in coordination, its characterized in that, including box body (5), work arm, power, motor, spanner working head (14), the quantity of work arm is 2-6, and the end of every work arm articulates on the articulated shaft of box body (5), can rotate around the articulated shaft, and end is installed in addition the motor, the main shaft axial lead of motor is parallel with the axial lead of articulated shaft, the power with the motor is connected, for the motor provides power, spanner working head (14) are installed on the main shaft of motor.

Technical Field

The invention relates to the field of mechanical tools, in particular to an multi-head cooperative wrench.

Background

The tight fit is common shaft hole fit modes which are between clearance fit and interference fit, and has the main characteristics that the tight fit can be installed and disassembled, and meanwhile, the stability of the assembly needs to be ensured, is not allowed to shake and loosen in the working process, the tight fit has high requirements on the size precision and the assembly precision of parts, the disassembly and assembly process is usually troublesome, the fit is tight, the friction force during disassembly and assembly is very large, the common disassembly and assembly methods mainly comprise three types, the type uses an auxiliary tool to knock and overcome the friction force to realize assembly or disassembly, the method wastes time and labor and easily damages a workpiece and a fitting surface, the second type uses a tool with power to apply force to the workpiece during disassembly and assembly, such as hydraulic, electric, pneumatic and other tools to perform auxiliary disassembly and assembly, the method is relatively reliable and labor-saving, but has high cost, and usually has large volume, the use occasion is limited, the third type uses the top pressure of threads to overcome the friction force between the assembly surfaces to realize the tight fit of parts, but usually needs a plurality of screws distributed around the assembly holes to be repeatedly and the assembly holes, otherwise, the screw rod is easily pushed and the screw rod is pressed and is pressed uniformly and assembled according to the normal operation, so that the assembling uniformity of is easily generated, the screw rod is repeatedly and the assembling procedures, and the screw rod is repeatedly and the assembling uniformity is changed, and the assembling uniformity is frequently generated, otherwise, and the screw rod is difficult to be repeatedly and the screw rod is frequently generated, and the assembling uniformity is frequently generated.

The invention is provided aiming at the third method, and solves the problem that a plurality of screw rods can be simultaneously and cooperatively screwed when the third method is used, so as to ensure the uniformity of the stress of the disassembled and assembled part along the axial direction of the assembling shaft hole, improve the efficiency and ensure that the third method is simpler and more convenient to operate.

Disclosure of Invention

The th invention of the present application aims to provide mechanical multi-head cooperative wrench, which can simultaneously and cooperatively screw a plurality of screws when a tight fit component is disassembled and assembled by overcoming a friction force between assembling surfaces by using a top pressure of a thread, so as to ensure the uniformity of stress of the disassembled and assembled component along the axial direction of an assembling shaft hole, and simultaneously improve the disassembling and assembling efficiency, so that the disassembling and assembling process is simple and convenient.

A second object of the present invention is to provide electric multi-head cooperation wrenches, which have the same operation effect as the mechanical multi-head cooperation wrench , but the power is changed from manual operation to electric operation, the mechanical type does not need a power supply, so the usage occasions are more widely, and the reliability and the service life are longer because both are mechanical structures, but the electric structure is simpler and less laborious, so the electric multi-head cooperation wrench has good and bad use characteristics.

In order to achieve the object of the invention, the corresponding technical scheme is as follows:

A mechanical multi-head cooperation wrench comprises a rocking handle, a box body, a working arm, a bevel gear, a second bevel gear, a third bevel gear, a fourth bevel gear, a th rotating shaft, a second rotating shaft and wrench working heads, wherein the rotating shaft part of the rocking handle is arranged along the central axis of the box body, the working arm comprises a plurality of working arms, the shaft axis of the rotating shaft part of the rocking handle is taken as a rotating shaft, the th bevel gear is arranged on the rotating shaft part of the rocking handle and rotates along with the rotation of the rotating shaft part of the rocking handle, the second bevel gear is matched with the th bevel gear, the rd rotating shaft is arranged in the working arm and can only rotate around the shaft axis, the end of the th rotating shaft is arranged in the shaft hole of the second bevel gear, the end of the third bevel gear is arranged in the shaft hole of the third bevel gear, the fourth bevel gear is matched with the third bevel gear, the shaft axis of the fourth bevel gear is parallel to the shaft axis of the fifth bevel gear, the fourth bevel gear is arranged in the shaft hole of the third bevel gear, the second bevel gear, the working arm, the working head can rotate around the rotating shaft 6853, the working head can rotate around the rotating shaft of the rocking handle, the working head can drive the working head to rotate around the working head, the working head can drive the working head.

Preferably, the number of the working arms is 2-6. Under the condition that the number of the threads of the top part is an even number, the threads are 2, 4 and 6 commonly, and under the condition that the number of the threads of the top part is an even number, the uniformity of stress of the disassembled and assembled part along the axial direction of an assembling shaft hole can be ensured only by screwing two opposite angles or symmetrical screw rods, so that the number of the most practical working arms is 2, and if the number of the threads of the top part is an odd number, the good stress uniformity is ensured, a multi-head cooperative wrench with a specific size and a specific number of the working arms is preferably customized, and under the condition that the requirement is not high, the multi-head cooperative wrench with 2 working arms can be used. The use scenarios of more than 6 working arms are substantially absent, so that the number of working arms in the present invention is 2-6.

, the rotation of the shaft part of the rocking handle, the shaft and the second shaft are supported and restrained by bearings matched with the shaft diameters of the shaft part, the shaft and the second shaft, the bearings support and restrain the shafts, and the shaft makes the rotation smoother.

, the working arm includes a lug, the lug has a hinge shaft hole, the hinge shaft hole is coaxial with the shaft of the rocking handle, the lug is designed because there are other structures and parts in the box, in order to prevent interference, a lug design is adopted.

, the lugs of the working arms are assembled at in a manner of stacking up and down in sequence, and the stacking assembly is used for preventing the working arms from interfering with each other when rotating.

Preferably, the wrench working head is a hexagonal wrench head. The hexagonal head is the most common wrench working head, and the hexagonal wrench head can be an inner hexagonal head or an outer hexagonal head.

, the tool further comprises a hexagonal adapter coaxially mounted on the hexagonal wrench head in a magnetic attraction and size matching manner for realizing the conversion between the inner and outer hexagons and the specification change of the wrench head, wherein the hexagonal adapter realizes the conversion between the outer hexagon and the inner hexagon or between the inner hexagon and the outer hexagon, and in addition, realizes the conversion between the outer hexagon and the inner hexagon and the outer hexagon.

, the box body comprises a through hole, a through hole extending shaft, a constraint plate and a hollow window, the through hole is used for installing the rotating shaft part of the rocking handle, the through hole extending shaft is concentric with the through hole and extends towards the inside of the box body, the constraint plate is matched with a hinged shaft hole on the lug, the length of the through hole extending shaft is slightly longer than the total thickness of the overlapped lugs of all the working arms, the constraint plate is fixed at the lower end of the through hole extending shaft, the upper surface of the constraint plate is tightly attached to the lower surface of the lug which is positioned at the lowest layer, the hollow window is a square hollow part arranged on the outer wall of the box body, the number of the hollow windows is the same as the number of the working arms, the lower edge of the hollow window is tightly attached to the lower surface of the working arms, and the working arms can be better constrained to have other.

steps further include a fastening screw, a plurality of threaded through holes are formed in the upper surface of the box body, after the fastening screw is screwed into the threaded through holes, the lower end of the fastening screw contacts with the upper surface of the lug on the uppermost layer, all the lugs can be pressed to be tightly attached to through the fastening screw and the constraint plate, and the rotational freedom degree of the working arms is constrained.

In order to achieve the second object of the present invention, the corresponding technical solutions are as follows:

multihead spanner in coordination of electrodynamic type, including box body, work arm, power, motor, spanner working head, the quantity of work arm is 2-6, and the end of every work arm articulates on the articulated shaft of box body, can rotate around the articulated shaft, and end is installed in addition the motor, the main shaft axial lead of motor is parallel with the axial lead of articulated shaft, the power with the motor is connected, for the motor provides power, the spanner working head is installed on the main shaft of motor.

Drawings

FIG. 1 is a three-dimensional schematic view of a mechanical multi-start wrench according to the present invention.

Fig. 2 is a schematic view of the mechanical multi-head cooperative wrench after the box body is hidden.

FIG. 3 is a schematic view of the mechanical multi-head spanner with the box and working arm hidden.

FIG. 4 is a schematic view of the mechanical multi-head wrench with the hidden box, working arm and hex head.

Fig. 5 is a cross-sectional view of a mechanical multi-start co-wrench with a single working arm in section.

Fig. 6 is a schematic box of the mechanical multi-head cooperative wrench.

Fig. 7 is a schematic diagram of different working states of the mechanical multi-head cooperative wrench, wherein (a) shows the working state when three working arms are 120 degrees between each other, and (b) shows the maximum and minimum center distance between the working heads of the two wrenches.

Detailed Description

The present invention will be described in further detail with reference to embodiments of the invention and the accompanying drawings.

As shown in fig. 1-6, a embodiment of the present invention is a mechanical multi-head cooperation wrench, which includes a rocking handle 4, a box 5, a working arm, a th bevel gear 7, a second bevel gear 8, a third bevel gear 11, a fourth bevel gear 12, a th rotating shaft 10, a second rotating shaft 13, and a wrench working head 14, wherein the rotating shaft 401 of the rocking handle 4 is installed along the central axis of the box 5, the working arm has several working arms, each of which uses the axial line of the rocking handle rotating shaft 401 as the rotating shaft, the th bevel gear 7 is installed on the rotating shaft 401 of the rocking handle 4, the second bevel gear 8 is engaged with the th bevel gear 7 as the rotating shaft 401 rotates, the rotating shaft 10 is installed in the rotating shaft hole 104 of the working arm, and can only rotate around its own axial line, the end of the rotating shaft 10 of the third bevel gear 8 is installed in the shaft hole of the third bevel gear 11, the end of the working arm is installed in the shaft hole of the third bevel gear 11, the fourth bevel gear 12 is installed in the working shaft 102, the working arm 13 of the fourth bevel gear 13, and the working head 14 is installed in the working arm 102, and the working arm 13.

The rotation of the rotating shaft part 401, the th rotating shaft 10 and the second rotating shaft 13 of the rocking handle 4 is supported and restrained by bearings matched with the shaft diameters of the three.

The working arm comprises a lug 101, a hinge shaft hole 103 is arranged on the lug 101, and the hinge shaft hole 103 is matched and hinged with the through hole extending shaft 506.

As shown in fig. 2, taking the number of the working arms as 3 as an example, the lug 101 of the working arm 1, the lug 201 of the working arm 2, and the lug 301 of the working arm 3 are assembled from in a manner of being stacked in order from top to bottom.

Preferably, the wrench working head 14 is a hexagonal wrench head.

, the socket comprises a hexagonal adapter 6, wherein the hexagonal adapter 6 is coaxially mounted on a hexagonal wrench head in a magnetic attraction and size matching manner, and is used for realizing the conversion between an inner hexagon and an outer hexagon and the specification replacement of the wrench head.

As shown in fig. 1 and 6, the box body 5 includes a through hole 503, a through hole extending shaft 506, a restraining plate 505, and a hollow window 509, the through hole 503 is used for mounting the rotating shaft portion 401 of the rocking handle 4, the through hole extending shaft 506 is concentric with the through hole 503 and extends towards the inside of the box body 5, and is matched with the hinge shaft hole 103 on the lug 101, the length of the through hole extending shaft 506 is slightly longer than the total thickness of the lugs of all the working arms after being stacked, taking the number of the working arms as 3 as an example, the length of the through hole extending shaft 506 is slightly longer than the sum of the thicknesses of the lugs 101, the lugs 201, and the lugs 301, the restraining plate 505 is fixed at the lower end of the through hole extending shaft 506, the upper surface of the restraining plate abuts against the lower surface of the lugs 301 at the lowest , the hollow window 509 is a square hollow cut on the outer wall of the box body 5, the number of the hollow windows 509 is the same as the number of the working arms, the lower edge 502 of the hollow window 509 is tightly attached to the lower surface of the working arms, so as to better restrain the working arms from rotating about other degrees of freedom except for mounting the through hole of the through hole extending shaft 506, the.

, the utility model also comprises a fastening screw 9, a plurality of threaded through holes 501 are arranged on the upper surface of the box body 5, after the fastening screw 9 is screwed into the threaded through holes 501, the lower end of the fastening screw 9 contacts with the upper surface of the lug 101 on the top layer, all the lugs can be pressed to be tightly attached to through the fastening screw 9 and the restraint plate 505, so as to realize the restraint of the rotational freedom degree of the working arms, when the fastening screw 9 is loosened, the working arms can rotate relatively, and after the fastening screw 9 is tightened, the working arms can not rotate relatively.

As shown in fig. 7, since the working arms can rotate relatively to each other, the center distance between the wrench working heads 14 on different working arms can be changed, so that the working distance between the two wrench working heads 14 can be adjusted, therefore, as long as the center distance between the two screws is within the range of , the mechanical multi-head cooperation wrench can be used to simultaneously screw, in fig. 7, (a) is the working state when the three working arms are 120 degrees between each other, (b),

the maximum center distance of the two wrench working heads when the two working arms are unfolded to 180 degrees;

the minimum center distance of the two wrench working heads when the two working arms are close to each other and interfere with each other.

The second embodiment of the invention is electric multi-head cooperative wrenches, which is different from the embodiment in that the mechanical transmission of a bevel gear set is replaced by electric transmission, so that the structure is greatly simplified, and the wrench comprises a box body 5, working arms, a power supply, a motor and a wrench working head 14, wherein the end of each working arm is hinged on a hinged shaft of the box body 5 and can rotate around the hinged shaft, the motor is arranged at the other end, the axial lead of a main shaft of the motor is parallel to the axial lead of the hinged shaft, the power supply is connected with the motor to provide power for the motor, and the wrench working head 14 is arranged on the main shaft of the motor.