CN215548269U - Electric wrench with lifting and swinging actions - Google Patents

Abstract

The utility model provides an electric wrench with lifting and swinging actions, relates to the field of disassembling equipment, and particularly relates to an electric wrench with lifting and swinging actions, which comprises a lifting structure, a rotating structure and a transmission structure, wherein the lifting structure is used for driving the electric wrench to lift; the electric wrench comprises a rotating structure and a transmission structure, wherein the rotating structure is used for driving the electric wrench to rotate, the transmission structure is used for providing power for the electric wrench, and a lifting structure and a rotating structure are combined, so that the electric wrench can be lifted in a vertical direction, a sufficient installation distance can be ensured, a nut can be smoothly installed on a screw rod, the electric wrench can be rotated and lifted when the electric wrench is in a non-working state, and the electric wrench is prevented from colliding with other objects when moving along with a vehicle, and the electric wrench is prevented from being damaged.

Description

Electric wrench with lifting and swinging actions

Technical Field

The utility model relates to the field of disassembling equipment, in particular to an electric wrench with lifting and swinging actions.

Background

Fastener bolts, shims and other accessories are distributed and installed and fastener bolts are tightened and loosened as is common practice in new rail laying, rail replacement and rail stress relief projects in current rail traffic.

In the prior art, the manual tightening or loosening mode is mostly adopted, the original mode is time-consuming and labor-consuming, and a large amount of work is needed. On the basis of the prior art, a self-propelled rail bolt tightening and loosening device and a self-propelled rail bolt tightening and loosening method (CN110565460A) are developed, and bolts, nuts and the like along a rail are disassembled in a vehicle-mounted electric wrench mode, so that the rail bolt tightening and loosening device is convenient, quick, time-saving and labor-saving.

However, in the patent of "self-propelled rail bolt tightening and loosening device and method thereof", the electric wrench is vertically fixed on the self-propelled trolley, so that the electric wrench is likely to collide with a complex terrain during walking and working, and the electric wrench and other parts attached to the electric wrench are damaged.

The existing solution is to increase the height of the electric wrench, but the solution is not the root cause of disease, and cannot fundamentally solve the problem that the electric wrench is easy to damage.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electric wrench with lifting and swinging actions, and aims to solve the problem that the electric wrench on the existing self-propelled trolley is easy to collide with complex terrain and damage the electric wrench and parts on the electric wrench.

In order to achieve the above object, an embodiment of the present invention provides an electric wrench with lifting and swinging actions, including:

the lifting structure comprises a top plate, the top plate is provided with a lead screw penetrating through the top plate, the lead screw is in threaded connection with a sliding bottom plate, the lower end face of the sliding bottom plate is provided with an electric wrench, and the lead screw rotates to drive the sliding bottom plate to move up and down;

the rotating structure comprises two side plates which are arranged in parallel, the upper end of each side plate is fixedly connected with the top plate, the bottom end of each side plate is provided with a rotating shaft, and at least one rotating shaft is provided with a non-circular gear and a driving gear shaft which is meshed with the non-circular gear;

the transmission structure is arranged on the lifting bottom plate and comprises a driving gear, a first gear, a second gear and a third gear, the first gear is meshed with the driving gear, the first gear is connected with the third gear through a gear shaft, the third gear is meshed with the second gear, and the second gear is in transmission connection with a spindle of the electric wrench.

Preferably, the lifting structure further comprises a middle plate, the middle plate is arranged between the top plate and the sliding bottom plate, the lead screw penetrates through the middle plate, guide columns and damping columns are arranged on the middle plate in a staggered mode, the upper ends of the guide columns are fixed on the top plate, the lower ends of the guide columns are fixed on the movable bottom plate, the damping columns comprise bodies and damping springs, the upper ends of the bodies are connected to the middle plate, one ends of the damping springs are connected to the lower ends of the bodies, and the other ends of the damping springs are connected to the sliding bottom plate.

Preferably, the electric wrench with lifting and swinging actions further comprises a support, the support comprises two parallel beams, and a bearing for penetrating through the rotating shaft is arranged on the beam.

Preferably, the support further comprises a positioning beam, the positioning beam is arranged on one side of the lifting path of the electric wrench, and a sensor for detecting the lifting height of the electric wrench is arranged on the positioning beam.

Preferably, electric spanner includes the shell, is provided with main shaft and sleeve ejector pin in the shell, main shaft one end is connected with second gear drive, and the other end is connected with sleeve ejector pin transmission, sleeve ejector pin keeps away from main shaft one end and is provided with the biax gyroscope, sleeve ejector pin is located biax gyroscope pot head and is equipped with the high locating element with the sensor response, be provided with the installation department that is used for installing the screw rod below the biax gyroscope.

Preferably, still be provided with the impact assembly in the shell, the impact assembly includes impact block, driven impact section of thick bamboo and pressure cover, the main shaft outer fringe is located to the impact block ring, the surface of main shaft is provided with the guiding groove, the guiding groove is spiral rising form, be provided with the steel ball in the guiding groove, the impact block can be along guiding groove upward movement under the effect of steel ball, driven impact section of thick bamboo is connected with spindle drive, the sleeve ejector pin is connected with driven impact section of thick bamboo block, the pressure cover sets up in the impact block, and presses the outer fringe of cover and the inner edge clearance fit of impact block, presses the inner edge and the main shaft outer fringe fixed connection of cover, it prevents the effort that both are close to press between cover and the impact block.

Preferably, the sleeve ejector rod is sleeved in the driven impact barrel, the driven impact barrel is provided with a waist-shaped groove in the vertical direction on the side wall, the sleeve ejector rod is provided with an ejector rod pin, the ejector rod pin is located in the waist-shaped groove and can move up and down in the waist-shaped groove, a driven spring is arranged in the driven impact barrel, one end of the driven spring is abutted to the main shaft, and the other end of the driven spring is abutted to the sleeve ejector rod.

Preferably, the non-circular gear is a semicircular gear.

Preferably, the second gear is connected with a main shaft of the electric wrench through a cycloidal pin gear reduction box.

The scheme of the utility model has the following beneficial effects:

in the utility model, a mode of combining the lifting structure and the rotating structure is adopted, so that the electric wrench can be lifted in the vertical direction, the sufficient installation distance can be ensured, the nut can be smoothly installed on the screw rod, the electric wrench can be rotated and lifted when in a non-working state, and the electric wrench is prevented from colliding with other objects when moving along with a vehicle to cause the damage of the electric wrench.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of a lifting structure;

FIG. 3 is a schematic view of a portion of the present invention shown mounted in a rack;

fig. 4 is a sectional view of the electric wrench.

[ description of reference ]

1-lifting structure, 11-top plate, 12-screw rod, 13-sliding bottom plate, 14-electric wrench, 15-middle plate, 16-guide column and 17-shock-absorbing column;

141-shell, 142-main shaft, 143-sleeve push rod, 144-biaxial gyroscope, 145-height positioning element, 146-mounting part, 147-impact component, 1471-impact block, 1472-driven impact barrel, 1473-pressing sleeve, 1474-guiding groove, 1475-steel ball and 148-driven spring;

2-rotating structure, 21-side plate, 22-non-circular gear, 23-driving gear shaft;

3. the transmission structure comprises a transmission structure, a 31-driving gear, a 32-first gear, a 33-second gear, a 34-third gear and a 35-cycloidal pin gear reduction box;

4-bracket, 41-beam, 42-bearing, 43-positioning beam and 44-sensor.

Detailed Description

In order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

The utility model provides an electric wrench with lifting and swinging actions aiming at the existing problems.

As shown in fig. 1-4, an embodiment of the present invention provides an electric wrench with lifting and swinging actions, which includes a lifting structure 1, a rotating structure 2 and a transmission structure 3, wherein the lifting structure 1 includes a top plate 11, a screw rod 12 penetrating through the top plate 11 is disposed on the top plate 11, and a sliding bottom plate 13 is screwed on the screw rod. An electric wrench 14 is arranged on the sliding bottom plate 13, and the sliding bottom plate 13 can move up and down under the rotation of the screw rod 12 to drive the electric wrench 14 to move up and down. Further, an intermediate plate 15 is provided between the top plate 11 and the slide bottom plate 13, and the aforementioned screw shaft 12 penetrates the intermediate plate 15 and holds the intermediate plate 15 stationary relative to the screw shaft 12 in the longitudinal height. A guide post 16 and a shock absorbing post 17 are provided on the lower surface of the middle plate 15, wherein one end of the guide post 16 is provided on the top plate 11, and the other end thereof passes through the sliding bottom plate 13, and a tightening nut is fixed to the lower end of the guide post 16 to prevent the sliding bottom plate 13 from being separated from the guide post 16. The shock absorption column 17 comprises a body and a shock absorption spring, the body is cylindrical, the shock absorption spring is sleeved on the outer edge of the body, one end of the body is fixed on the middle plate 15, and one end of the shock absorption spring is fixed on the sliding bottom plate 13.

The lifting structure 1 can drive the electric wrench 14 located thereon to move, and the electric wrench 14 is ensured to be capable of installing a screw at a position designated by a nut during working. Preferably, the lead screw 12 is driven by a lead screw motor.

The rotating structure 2 comprises side plates 21 arranged on two sides of the lifting structure 1 in parallel, the upper end of each side plate 21 is fixedly connected with the top plate 11, and the lower end of each side plate 21 is provided with a rotating shaft. Preferably, the lower end of the side plate 21 is pointed, and the rotation shaft is provided at the pointed end of the side plate 21.

The rotating structure 2 further comprises a non-circular gear 22, the non-circular gear 22 is in interference fit with the rotating shaft, and the non-circular gear 22 is meshed with a driving gear shaft 23. The driving gear shaft 23 can drive the non-circular gear 22 to rotate around the rotating shaft, so as to drive the rotating structure 2 to rotate together.

Electric wrench with go up and down and swing action still includes support 4, and this support 4 includes two parallel arrangement's crossbeam 41, is provided with bearing 42 on crossbeam 41, and this bearing 42 and axis of rotation cooperation are dark changeed, can play the effect that supports rotating-structure 2, can play the effect that alleviates rotating-structure 2 resistance again.

The stand 4 is further provided with a positioning beam 43, the positioning beam 43 is provided on one side of the lifting path of the electric wrench 14, and the positioning beam 43 is provided with a sensor 44 for detecting the lifting height of the electric wrench 14.

The electric wrench 14 can be rotated by a certain angle through the rotating structure 2, and when the electric wrench is installed on a carrier, the electric wrench can be collinear with the advancing direction of the carrier, so that the electric wrench 14 is further prevented from colliding with other objects. Preferably, the non-circular gear 22 is a semi-circular gear, which ensures that the electric wrench 14 can swing in the range of 0-90 °.

Furthermore, the electric wrench with lifting and swinging actions further comprises a transmission structure 3, the transmission structure 3 is disposed on the sliding bottom plate 13 and comprises a driving gear 31, a first gear 32, a second gear 33 and a third gear 34, and the driving gear 31 is driven by a main gear motor (not shown in the figure). The driving gear 31 is in mesh transmission with a first gear 32, and the first gear 32 and a third gear 34 are connected through a gear shaft. Preferably, the second gear 33 and the third gear 34 are bevel gears, and the third gear 34 is engaged with the second gear 33, so that the original transverse rotation is changed into the longitudinal rotation by the gear engagement. The second gear 33 is in transmission connection with the main shaft 142 of the electric wrench 14, and serves as a power source of the electric wrench 14.

The aforementioned transmission structure 3 is a transmission structure 3 of an electric wrench 14, in the embodiment, a structure of a dual electric wrench 14 is adopted, so two sets of transmission structures 3 are required, and in the two sets of transmission structures 3, the same driving gear 31 drives two first gears 32.

The electric wrench 14 includes a housing 141, and a main shaft 142 is provided inside the housing 141, and the main shaft 142 is used for connecting the second gear 33. The sleeve top rod 143 is similarly arranged in the housing 141, the lower end of the sleeve top rod 143 extends out of the housing 141, the main shaft 142 is in transmission connection with the sleeve top rod 143, and the transmission of rotation can be realized in a manner that the main shaft 142 is engaged with the sleeve.

A double-shaft gyroscope 144 is arranged at one end of the sleeve top rod 143 far away from the main shaft 142, and a mounting part 146 is arranged on the double-shaft gyroscope 144, wherein the mounting part 146 is used for mounting a screw rod, and the screw rod rotates relative to a nut preset on a track to perform a screwing function.

In this embodiment, the main shaft 142 drives the sleeve rod 143, the dual-axis gyroscope 144 and the mounting portion 146 to rotate, so that the screw rod is screwed, and the mounting portion 146 can be adjusted to be in a vertical state under different working environments by the dual-axis gyroscope 144. Particularly, after the rotating structure 2 rotates, the installation part 146 does not need to be calibrated again to be vertical, and the situation that the threads are dislocated and seized when the nut and the screw are screwed can be reduced as much as possible by keeping the installation part 146 in a vertical state.

Further, when the nut and the screw are still misaligned or seized during the operation of the mounting portion 146, the impact assembly 147 is required to correct the misalignment.

Specifically, the impact assembly 147 includes an impact block 1471, a driven impact cylinder 1472, the driven impact cylinder 1472 is disposed in the accommodating space, the lower end of the driven impact cylinder 1472 extends out of the housing 141, the sleeve ram 143 is disposed in the driven impact cylinder 1472 and extends out of the lower end of the driven impact cylinder 1472, the sleeve ram 143 can be engaged with the driven impact cylinder 1472 to transmit rotation, the impact block 1471 is annularly disposed on the outer edge of the main shaft 142, the outer surface of the main shaft 142 is provided with a guide groove 1474, the guide groove 1474 is a spirally rising curve, a steel ball 1475 is disposed in the guide groove 1474, the impact block 1471 can move upward along the guide groove 1474 under the action of the steel ball 1475, when the impact block 1471 rises to the top end of the guide groove 1474, the steel ball 1475 is separated from the impact block 1471, the steel ball 1475 falls down along the guide groove 1474, and the impact block 1471 falls down under the action of gravity and collides with the driven impact cylinder 1472, a downward impact force is generated and transmitted to the mounting portion 146 through the sleeve jack 143, and the screw in the mounting portion 146 is vibrated once, so that the nut and the screw are in a thread misalignment or seizing condition, and the thread misalignment condition is adjusted by vibration, thereby further correcting the problem of the wrong engagement of the screw nut.

In order to enhance the impact of the impact block 1471 during downward movement, the impact assembly 147 further includes a pressing sleeve 1473, the pressing sleeve 1473 is disposed at the upper end of the main shaft 142, the pressing sleeve 1473 is disposed in the impact block 1471, the outer edge of the pressing sleeve 1473 is in clearance fit with the inner edge of the impact block 1471, and a force for preventing the pressing sleeve 1473 and the impact block 1471 from approaching is provided between them, and the force can be achieved by various conventional methods, such as an elastic element. When the impact block 1471 is separated, the impact block 1471 has higher impact speed and impact kinetic energy compared with the action of self gravity, so that the impact on the dislocation of the thread can be better realized, and the aim of correction can be better fulfilled.

Further, the driven impact cylinder 1472 is provided with a vertical waist-shaped groove on the side wall, the sleeve ejector 143 is provided with an ejector pin at the outer edge, and the ejector pin is located in the waist-shaped groove and can move up and down in the waist-shaped groove. A driven spring 148 is provided in the driven impact cylinder 1472, and one end of the driven spring 148 abuts against the main shaft 142 and the other end abuts against the socket ram 143.

In this technical scheme, the driven transmission mode of strikeing a section of thick bamboo 1472 and sleeve ejector pin 143 has been demonstrated, utilizes the elasticity that elasticity produced when installation of installation department 146 for the nut compresses tightly, the lock with the screw rod better, when strikeing block 1471 downwards striking in addition, can pass through this striking of driven spring 148 buffering, avoids too big impact force to damage the screw thread.

Furthermore, a height positioning element 145 which is sensitive to the sensor 44 is further provided at one end of the sleeve top bar 143 which is located at the dual-axis gyroscope 144, and is used for receiving the signal of the sensor 44.

Furthermore, a cycloidal pin gear reduction box 35 is arranged between the two gears and the main shaft 142 of the electric wrench 14, and the cycloidal pin gear reduction box 35 realizes the characteristics of small volume, light weight, large output torque, high speed and the like of the electric wrench 14.

In addition, the utility model also comprises a control system which is in signal connection with the motor of the screw 12, the motor of the master gear and the power source for driving the shaft 23 of the master gear 31 and controls all parts, and the control system is in signal connection with the sensor 44.

The control system controls the motor of the lead screw 12 to work, the nut is contacted with the screw, the control system drives the main gear motor, so that the mounting part 146 is in a rotating state, and the mounting part 146 keeps rotating and descending states simultaneously in the process of screwing the mounting part 146 with the screw.

When the sensor 44 detects that the mounting portion 146 is lowered to the compliant position, it is determined that the screw is screwed on the nut in compliance with the requirement, at this time, the sensor 44 transmits a signal to the control system, the control system controls the main gear motor to stop rotating, the main gear motor of the screw rod rotates in the reverse direction to lift the mounting portion 146, and the next mounting is prepared. In the process of waiting for the next installation, the control system can control the power source for driving the shaft 23 of the driving gear 31 to rotate the electric wrench 14 for 90 degrees to retract, and the electric wrench is in standby.

While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the utility model as defined in the appended claims.

Claims (9)

1. The utility model provides an electric wrench with go up and down and swing action which characterized in that: the method comprises the following steps:

the lifting structure (1) comprises a top plate (11), wherein a lead screw (12) penetrating through the top plate (11) is arranged on the top plate (11), a sliding bottom plate (13) is connected to the lead screw (12) in a threaded mode, an electric wrench (14) is arranged on the lower end face of the sliding bottom plate (13), and the lead screw (12) rotates to drive the sliding bottom plate (13) to move up and down;

the rotating structure (2) comprises two side plates (21) which are arranged in parallel, the upper end of each side plate (21) is fixedly connected with the top plate (11), the bottom end of each side plate (21) is provided with a rotating shaft, and at least one rotating shaft is provided with a non-circular gear (22) and a driving gear shaft (23) which is meshed with the non-circular gear (22);

the transmission structure (3) is arranged on the sliding bottom plate and comprises a driving gear (31), a first gear (32), a second gear (33) and a third gear (34), the first gear (32) is meshed with the driving gear (31), the first gear (32) is connected with the third gear (34) through a gear shaft, the third gear (34) is meshed with the second gear (33), and the second gear (33) is in transmission connection with a main shaft (142) of the electric wrench (14).

2. The electric wrench with the lifting and swinging action as claimed in claim 1, wherein: the lifting structure (1) further comprises a middle plate (15), the middle plate (15) is arranged between the top plate (11) and the sliding bottom plate (13), the screw rod (12) penetrates through the middle plate (15), guide columns (16) and damping columns (17) are arranged on the middle plate (15) in a staggered mode, the upper ends of the guide columns (16) are fixed on the top plate (11), the lower ends of the guide columns (16) are fixed on the movable bottom plate, the damping columns (17) comprise bodies and damping springs, the upper ends of the bodies are connected to the middle plate (15), one ends of the damping springs are connected to the lower end of the bodies, and the other ends of the damping springs are connected to the sliding bottom plate (13).

3. The electric wrench with the lifting and swinging action as claimed in claim 1, wherein: the electric wrench with the lifting and swinging actions further comprises a support (4), the support (4) comprises two cross beams (41) which are arranged in parallel, and a bearing (42) for penetrating through a rotating shaft is arranged on each cross beam (41).

4. The electric wrench having the lifting and swinging motion as claimed in claim 3, wherein: the support (4) further comprises a positioning beam (43), the positioning beam (43) is arranged on one side of the lifting path of the electric wrench (14), and a sensor (44) for detecting the lifting height of the electric wrench (14) is arranged on the positioning beam (43).

5. The electric wrench with the lifting and swinging action as claimed in claim 1, wherein: electric spanner (14) include shell (141), are provided with main shaft (142) and sleeve ejector pin (143) in shell (141), main shaft (142) one end is connected with second gear (33) transmission, and the other end is connected with sleeve ejector pin (143) transmission, sleeve ejector pin (143) are kept away from main shaft (142) one end and are provided with biax gyroscope (144), sleeve ejector pin (143) are located biax gyroscope (144) pot head and are equipped with high locating element (145) with sensor (44) response, be provided with below biax gyroscope (144) installation department (146) that are used for installing the screw rod.

6. The electric wrench having the lifting and swinging motion as claimed in claim 5, wherein: the impact assembly (147) is further arranged in the shell (141), the impact assembly (147) comprises an impact block (1471), a driven impact barrel (1472) and a pressing sleeve (1473), the impact block (1471) is annularly arranged on the outer edge of the main shaft (142), a guide groove (1474) is formed in the outer surface of the main shaft (142), the guide groove (1474) is in a spiral ascending shape, a steel ball (1475) is arranged in the guide groove (1474), the impact block (1471) can move upwards along the guide groove (1474) under the action of the steel ball (1475), the driven impact barrel (1472) is in transmission connection with the main shaft (142), the sleeve ejector rod (143) is in clamping connection with the driven impact barrel (1472), the pressing sleeve (1473) is arranged in the impact block (1471), the outer edge of the pressing sleeve (1473) is in clearance fit with the inner edge of the impact block (1471), and the inner edge of the pressing sleeve (1473) is fixedly connected with the outer edge of the main shaft (142), and a force for preventing the pressing sleeve (1473) and the impact block (1471) from approaching is arranged between the pressing sleeve and the impact block.

7. The electric wrench with the lifting and swinging action according to claim 5 or 6, wherein: the sleeve ejector rod (143) is sleeved in the driven impact cylinder (1472), the driven impact cylinder (1472) is provided with a waist-shaped groove in the vertical direction on the side wall, the sleeve ejector rod (143) is provided with an ejector rod pin, the ejector rod pin is located in the waist-shaped groove and can move up and down in the waist-shaped groove, a driven spring (148) is arranged in the driven impact cylinder (1472), one end of the driven spring (148) is abutted to the main shaft (142), and the other end of the driven spring is abutted to the sleeve ejector rod (143).

8. The electric wrench with the lifting and swinging action as claimed in claim 1, wherein: the non-circular gear (22) is a semi-circular gear.

9. The electric wrench with the lifting and swinging action as claimed in claim 1, wherein: the second gear (33) is connected with a main shaft (142) of the electric wrench (14) through a cycloidal pin gear reduction box (35).

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