CN211332970U - Automatic torque adjusting device for wrench - Google Patents

Abstract

The utility model relates to a hydraulic wrench technical field, concretely relates to spanner torsion automatic regulating apparatus. The utility model discloses a spanner torsion automatic regulating apparatus includes the anti-arm of force, anti-arm of force left end top is fixed with the stand, the stand passes through the round pin hub connection with the connecting plate, the connecting plate is connected with the pneumatic cylinder, the pneumatic cylinder is connected with the hydraulic stem, the hydraulic stem passes through the round pin hub connection with dialling the arm upper end, it passes through the round pin hub connection with anti-force arm right-hand member to dial arm lower extreme rear side, it is equipped with clamp splice A to dial arm lower extreme front side, clamp splice A side is equipped with clamp splice B, clamp splice B is connected with power device, power device is connected with the handle, power device with dial the. The utility model discloses a spanner torsion automatic regulating apparatus can install and dismantle convenient to use to the bolt of different specifications.

Description

Automatic torque adjusting device for wrench

The technical field is as follows:

the utility model relates to a hydraulic wrench technical field, concretely relates to spanner torsion automatic regulating apparatus.

Background art:

the hydraulic wrench is a tool commonly used for processing, assembling and maintaining, and the working principle of the hydraulic wrench is that a lever principle is utilized, namely, after a hydraulic pump is started, pressure is generated through a motor, hydraulic oil in the hydraulic cylinder is conveyed to a hydraulic cylinder through an oil pipe medium, then a piston rod of the hydraulic cylinder is pushed, and a ratchet wheel at the front part of the wrench is driven by the piston rod, so that the ratchet wheel can drive a driving shaft to complete the pre-tightening and loosening work of a bolt.

At present, the hydraulic wrench is widely applied to the installation and the disassembly of bolts with large torque and certain limitation on space environment. When the hydraulic wrench is used each time, bolts with different specifications (diameters) are often required to be mounted and dismounted, and working heads with the same specifications (diameters) are required to be matched, and the working heads need to be carried additionally and are easy to lose. Meanwhile, when the space environment is too narrow, the hydraulic wrench needs to be removed every time to install the working head, and therefore, the hydraulic wrench in the prior art causes inconvenience to users.

The utility model has the following contents:

the utility model aims at overcoming the weak point that above-mentioned prior art exists, and provide a spanner torsion automatic regulating apparatus, the utility model discloses a spanner torsion automatic regulating apparatus can install and dismantle the bolt of different specifications, has made things convenient for user's use.

The utility model adopts the technical proposal that:

the utility model provides a spanner torsion automatic regulating apparatus, includes the counter-force arm, counter-force arm left end top is fixed with the stand, the stand passes through the round pin hub connection with the connecting plate, the connecting plate is connected with the pneumatic cylinder, the pneumatic cylinder is connected with the hydraulic stem, the hydraulic stem passes through the round pin hub connection with dialling the arm upper end, it passes through the round pin hub connection with counter-force arm right-hand member to dial arm lower extreme rear side, it is equipped with clamp splice A to dial arm lower extreme front side, clamp splice A side is equipped with clamp splice B, clamp splice B is connected with power device, power device is connected with the handle, power device is connected with the arm of dialling. The utility model discloses a adjust clamp splice A and clamp splice B's distance according to the specification of bolt to can be adapted to the bolt of different specifications, and clamp splice A and clamp splice B only contact with the bolt respectively, avoid causing the damage to the bolt surface.

Further, the clamping blocks A and B which are contacted with the bolts can be provided with fixed teeth to increase the friction force.

Further, the power device comprises a reversing device and a transmission device, the reversing device is connected with the handle, the reversing device is connected with the transmission device, the transmission device is connected with the clamping block B, and the transmission device is connected with the shifting arm.

Furthermore, the reversing device comprises a conical gear A, a conical gear B and a transmission shaft, wherein the conical gear A is connected with the handle, the conical gear A is meshed with the conical gear B, the conical gear B is connected with the transmission shaft, and the transmission shaft is connected with the transmission device. The utility model discloses a conical gear A and conical gear B mesh with 90 mode, can become the effort of horizontal direction with the effort of vertical direction, that is to say can drive the switching-over device through the handle, and the switching-over device drives transmission, and transmission drives clamp splice B to the realization is adjusted clamp splice B and clamp splice A's distance under the limited environment in space.

Further, transmission includes master gear, auxiliary gear, nut, the lantern ring, screw rod and spacing collar, the master gear is connected with the switching-over device, master gear and auxiliary gear mesh mutually, auxiliary gear and nut fixed connection, the nut passes through threaded connection with the screw rod, the screw rod still passes spacing collar and clamp splice B rotatable coupling and spacing collar and is fixed in on dialling the arm, the nut still with lantern ring rotatable coupling and the lantern ring be fixed in on dialling the arm. The utility model discloses utilize master gear, auxiliary gear, nut and screw rod can increase the moment of torsion to clamp splice B to improve the clamp force to the bolt.

Furthermore, the surface of the hydraulic cylinder is provided with an oil mirror, and the top of the hydraulic cylinder is respectively provided with an oil inlet and an oil outlet. The utility model discloses an inside change of hydro-cylinder can be observed to the oil glass to make things convenient for user's use.

Furthermore, the power device is located inside the fixed box, and the fixed box is fixed on the shifting arm. The utility model discloses a fixed box can protect power device, prevents external force to power device's destruction.

Further, the handle is T-shaped. The utility model discloses a handle is the T style of calligraphy, can convenient to use person rotate to improve user's satisfaction.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a distance between power device regulation clamp splice B and the clamp splice A is in order to adapt to the bolt of different specifications, avoids because the work head change with lose the trouble that brings for the user.

(2) The utility model discloses a switching-over device and transmission among the power device can convert the ascending effort of the vertical side of handle into the effort to clamp splice B horizontal direction, are convenient for fix the bolt in the limited environment in space.

(3) The utility model discloses a fixed box can prevent the destruction to power device.

Description of the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial sectional view of the present invention.

Fig. 3 is an enlarged view of fig. 2 a according to the present invention.

Fig. 4 is a schematic structural view of the collar of the present invention.

The specific implementation mode is as follows:

fixed connection include but not limited to welding, bolt or screw.

Referring to each figure, a spanner torsion automatic regulating apparatus, including the anti-arm of force 1, 1 left end top of the anti-arm of force is fixed with stand 2, stand 2 and connecting plate 3 are through the round pin hub connection, connecting plate 3 and pneumatic cylinder 4 fixed connection, pneumatic cylinder 4 is connected with hydraulic stem 5, hydraulic stem 5 with dial 6 upper ends of arm and pass through the round pin hub connection, dial 6 lower extreme rear sides of arm and anti-arm of force 1 right-hand member and pass through the round pin hub connection, it is equipped with clamp splice A8 to dial 6 lower extreme front sides of arm, clamp splice A8 side is equipped with clamp splice B9, clamp splice B9 is connected with power device, power device is connected with handle 13, power device with dial arm 6 and be connected.

The power device comprises a reversing device and a transmission device, the reversing device is connected with the handle 13, the reversing device is connected with the transmission device, the transmission device is connected with the clamping block B9, and the transmission device is connected with the shifting arm 6.

The reversing device comprises a conical gear A14, a conical gear B15 and a transmission shaft 16, wherein the conical gear A14 is fixedly connected with the handle 13, the conical gear A14 is meshed with the conical gear B15, the conical gear B15 is connected with the transmission shaft 16 through splines, and the transmission shaft 16 is connected with the transmission device.

The transmission device comprises a main gear 17, an auxiliary gear 18, a nut 19, a sleeve ring 20, a screw 21 and a limiting ring 22, the main gear 17 is connected with the reversing device, the main gear 17 is meshed with the auxiliary gear 18, the auxiliary gear 18 is fixedly connected with the nut 19, the nut 19 is in threaded connection with the screw 21, the screw 21 further penetrates through the limiting ring 22 and a clamping block B9 in a rotatable mode, the limiting ring 22 is fixed on the shifting arm 6, and the nut 19 is further in rotatable connection with the sleeve ring 20 and the sleeve ring 20 is fixed on the shifting arm 6.

The surface of the hydraulic cylinder 4 is provided with an oil mirror 10, and the top of the hydraulic cylinder 4 is respectively provided with an oil inlet 11 and an oil outlet 12.

The power device is positioned in the fixed box 7, and the fixed box 7 is fixed on the shifting arm 6.

The handle 13 is T-shaped.

The specific implementation process is as follows: in the using process, for the first time, the utility model is arranged in front of the equipment to be installed or disassembled, then the vacant position between the clamping block A8 and the clamping block B9 on the shifting arm 6 faces to the bolt, and the widths of the clamping block A8 and the clamping block B9 are respectively larger than the width of the fixed box 7;

secondly, the handle 13 is manually acted on the handle 13, the handle 13 rotates, the handle 13 drives the conical gear A14 to rotate, the conical gear A14 is meshed with the conical gear B15, the conical gear B15 rotates along with the conical gear B15 is connected with the main gear 17 through the transmission shaft 16, the main gear 17 rotates along with the conical gear, the main gear 17 is meshed with the auxiliary gear 18 to drive the auxiliary gear 18 to rotate, the auxiliary gear 18 is fixedly connected with the nut 19, so that the nut 19 also rotates along with the auxiliary gear, meanwhile, the nut 19 is in threaded connection with the screw 21, as the nut 19 is a ball nut, the nut is rotatably connected with the lantern ring 20 and is limited by the limiting ring 22, the screw 21 can move left and right, and the clamping block B9 is driven to move towards the clamping block A8 direction, and the bolt is fixed;

finally, the oil inlet 11 and the oil outlet 12 are connected through an external hydraulic pump, so that the hydraulic rod 5 of the hydraulic pump is realized, the hydraulic rod 5 drives the shifting arm 6, and the installation and the disassembly of the bolt are realized.

Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the invention, also combinations between technical features in the above embodiments or in different embodiments are possible, and there are many other variations of the different aspects of the invention as described above, which are not provided in detail for the sake of brevity. Therefore, any omission, modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (7)

1. The utility model provides a spanner torsion automatic regulating apparatus, its characterized in that, includes the anti-arm of force (1), anti-arm of force (1) left end top is fixed with stand (2), stand (2) are through round pin hub connection with connecting plate (3), connecting plate (3) are connected with pneumatic cylinder (4), pneumatic cylinder (4) are connected with hydraulic stem (5), hydraulic stem (5) with dial arm (6) upper end and pass through the round pin hub connection, dial arm (6) lower extreme rear side and anti-arm of force (1) right-hand member and pass through the round pin hub connection, it is equipped with clamp splice A (8) to dial arm (6) lower extreme front side, clamp splice A (8) side is equipped with clamp splice B (9), clamp splice B (9) are connected with power device, power device is connected with handle (13), power device with dial arm (6) and be connected.

2. The torque automatic adjusting device of the wrench as claimed in claim 1, wherein the power device comprises a reversing device and a transmission device, the reversing device is connected with the handle (13), the reversing device is connected with the transmission device, the transmission device is connected with the clamping block B (9), and the transmission device is connected with the shifting arm (6).

3. The torque automatic adjusting device for the wrench according to claim 2, wherein the reversing device comprises a conical gear A (14), a conical gear B (15) and a transmission shaft (16), the conical gear A (14) is connected with the handle (13), the conical gear A (14) is meshed with the conical gear B (15), the conical gear B (15) is connected with the transmission shaft (16), and the transmission shaft (16) is connected with the transmission device.

4. The automatic torque force adjusting device for the wrench as claimed in claim 2 or 3, wherein the transmission device comprises a main gear (17), an auxiliary gear (18), a nut (19), a collar (20), a screw (21) and a stop collar (22), the main gear (17) is connected to the reversing device, the main gear (17) and the auxiliary gear (18) are engaged, the auxiliary gear (18) is fixedly connected to the nut (19), the nut (19) is connected to the screw (21) through a thread, the screw (21) further passes through the stop collar (22) to be rotatably connected to the clamping block B (9) and the stop collar (22) is fixed to the shifting arm (6), the nut (19) further passes through the collar (20) to be rotatably connected to the collar (20) and the collar (20) is fixed to the shifting arm (6).

5. The automatic wrench torque adjusting device according to claim 4, wherein an oil mirror (10) is arranged on the surface of the hydraulic cylinder (4), and an oil inlet (11) and an oil outlet (12) are respectively arranged at the top of the hydraulic cylinder (4).

6. The torque automatic adjusting device of the wrench as claimed in claim 1, wherein the power device is located inside the fixing box (7) and the fixing box (7) is fixed on the shifting arm (6).

7. The torque automatic adjusting device of the wrench as claimed in claim 1, wherein the handle (13) is T-shaped.

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