Unidirectional protection torque limiter used on screw screwing robot
Technical Field
The utility model relates to a torque limiter technical field specifically is a folk prescription is used in on twisting screw robot and is protected torque limiter.
Background
The torque limiter is a part for connecting the main engine and the working machine, and has the main function of overload protection, and when the required torque exceeds the set value due to overload or mechanical failure, the torque limiter limits the torque transmitted by the transmission system in a slipping mode, and can stop the motor and the speed reducer by one signal output while slipping, and automatically recover the connection after the overload condition disappears. Just so prevented mechanical damage, avoided expensive stop loss, people often can use the unilateral protection torque limiter when protecting screwing robot on the market at present, but current unilateral still has certain defect to protect torque limiter, just for example:
1. the existing unidirectional protection torque limiter generally has larger abrasion to the torque limiter, so that the damage degree of the torque limiter is increased, the service life of the torque limiter is shortened, and the use requirement of people cannot be well met;
2. the existing unidirectional protection torque limiter is generally inconvenient to install, so that the difficulty in installing the torque limiter is increased to a certain extent, the installation efficiency of people is reduced, the installation requirements of people cannot be well met, and inconvenience is brought to the installation and use of people;
in order to solve the above problems, innovative design based on the original one-way protection torque limiter structure is urgently needed.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a folk prescription for on twisting screw robot is to protection torque limiter to solve the folk prescription that proposes among the above-mentioned background art and generally great to the wearing and tearing of torque limiter to protection torque limiter, and the folk prescription is generally not convenient for carry out the problem installed to torque limiter to protection torque limiter.
In order to achieve the above object, the utility model provides a following technical scheme: a unidirectional protective torque limiter used on a screw twisting robot comprises a driven shaft, a right clamping plate is fixedly connected at the right end of the driven shaft, the top of the right clamping plate is movably connected with a fixed bolt, the right side of the right clamping plate is provided with a limit groove, and the inner wall of the limiting groove is movably connected with a limiting block, and simultaneously the right end of the limiting block is fixedly provided with a left clamping plate, the top of the left clamping plate is provided with a thread groove, and the right side of the left clamping plate is fixedly connected with a driving shaft, and the right side of the driving shaft is fixedly provided with a limiter, and the inner wall of the limiter is provided with a groove, and the inner wall of the groove is fixedly provided with a supporting spring, the top of the supporting spring is fixedly provided with a ball rod, the outer wall of one side of the ball rod is movably provided with a stop block, and the top bulge of the ball rod is movably connected with a driving motor shaft, and the outer wall of the driving motor shaft is provided with a round groove.
Preferably, the right clamping plate forms a fixed structure with the left clamping plate through a fixing bolt, one end of the fixing bolt penetrates through the top of the right clamping plate and extends into the top of the left clamping plate, and meanwhile, the fixing bolt is connected with a thread groove in the top of the left clamping plate.
Preferably, the right clamping plate and the left clamping plate are respectively provided with a limiting groove and a limiting block, and the shape and the size of the limiting groove are matched with those of the limiting block.
Preferably, the limiter and the supporting spring form a fixed structure through a groove, and the size of the groove is larger than that of the supporting spring.
Preferably, the limiter and the ball rod form an elastic structure through a support spring, and the top of the support spring is attached to the bottom of the ball rod.
Preferably, the ball rod is provided with 4 stop blocks, and the number of the ball rod and the number of the stop blocks are 4, and the 4 stop blocks are respectively arranged on one side of each ball rod.
Preferably, the ball rod and the circular groove form a movable structure, and the size of the protruding part at the top of the ball rod is the same as that of the circular groove.
Preferably, be provided with round groove on the driving motor shaft, and the quantity in round groove is 4 to 4 round grooves all equidistance set up on the outer wall of driving motor shaft.
Compared with the prior art, the beneficial effects of the utility model are that: the unidirectional protection torque limiter is used on the screw screwing robot;
1. the limiter, the groove, the supporting spring, the ball rod, the stop block, the driving motor shaft and the circular groove are matched with each other for use, so that the ball rod is conveniently supported and fixed through the supporting spring and is fixed in the circular groove on the driving motor shaft, when driving overload occurs, the driving motor shaft extrudes the ball rod, the ball rod can move downwards under the action of the supporting spring, the driving motor shaft rotates, balls on the balls are attached to the surface of the driving motor shaft, abrasion on the driving motor shaft is reduced, and the service life of the torque limiter is prolonged;
2. through the driven shaft, right cardboard, fixing bolt, the spacing groove, the stopper, left cardboard, under the mutually supporting use of thread groove and driving shaft, made things convenient for the laminating back through left cardboard and right cardboard, and through installing fixing bolt at the upper and lower both ends of left cardboard, and then improved the installation effect to the driven shaft in the driving shaft, and then reduced the installation degree of difficulty to the moment of torsion limiter to a certain extent, people's installation effectiveness has been improved, can be fine satisfy people's installation demand, will bring the facility for people's installation and use.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic structural view of the driving motor shaft of the present invention when overload occurs;
FIG. 3 is a schematic structural view of the driving motor shaft of the present invention during normal operation;
FIG. 4 is a schematic view of the structure of the right clamping plate and the limiting groove of the present invention;
fig. 5 is the utility model discloses left cardboard and stopper structural schematic.
In the figure: 1. a driven shaft; 2. a right snap-gauge; 3. fixing the bolt; 4. a limiting groove; 5. a limiting block; 6. a left snap gauge; 7. a thread groove; 8. a drive shaft; 9. a limiter; 10. a groove; 11. a support spring; 12. a ball bar; 13. a stopper; 14. a drive motor shaft; 15. a round groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-5, the present invention provides a technical solution: a unidirectional protection torque limiter used on a screw twisting robot comprises a driven shaft 1, a right clamping plate 2, a fixing bolt 3, a limiting groove 4, a limiting block 5, a left clamping plate 6, a thread groove 7, a driving shaft 8, a limiter 9, a groove 10, a supporting spring 11, a ball rod 12, a stop block 13, a driving motor shaft 14 and a circular groove 15, wherein the right end of the driven shaft 1 is fixedly connected with the right clamping plate 2, the top of the right clamping plate 2 is movably connected with the fixing bolt 3, the right side of the right clamping plate 2 is provided with the limiting groove 4, the inner wall of the limiting groove 4 is movably connected with the limiting block 5, the right end of the limiting block 5 is fixedly provided with the left clamping plate 6, the top of the left clamping plate 6 is provided with the thread groove 7, the right side of the left clamping plate 6 is fixedly connected with the driving shaft 8, the right side of the driving shaft 8 is fixedly provided with the limiter 9, and the inner wall of the limiter 9 is provided with the groove 10, meanwhile, a supporting spring 11 is fixedly arranged on the inner wall of the groove 10, a ball rod 12 is fixedly arranged at the top of the supporting spring 11, a stop block 13 is movably arranged on the outer wall of one side of the ball rod 12, a driving motor shaft 14 is movably connected to a protruding part at the top of the ball rod 12, and a round groove 15 is formed in the outer wall of the driving motor shaft 14.
The right clamping plate 2 and the left clamping plate 6 form a fixed structure through the fixing bolt 3, one end of the fixing bolt 3 penetrates through the top of the right clamping plate 2 and extends into the top of the left clamping plate 6, and meanwhile, the fixing bolt is connected with the thread groove 7 in the top of the left clamping plate 6, so that the connection between the fixing bolt 3 and the thread groove 7 is facilitated, and the fixing effect of the right clamping plate 2 and the left clamping plate 6 can be enhanced;
the right clamping plate 2 and the left clamping plate 6 are respectively provided with a limiting groove 4 and a limiting block 5, and the shape and size of the limiting groove 4 are matched with the shape and size of the limiting block 5, so that the limiting block 5 can be conveniently clamped into the limiting groove 4, and the connection between the right clamping plate 2 and the left clamping plate 6 is further improved;
the limiter 9 and the supporting spring 11 form a fixed structure through the groove 10, and the size of the groove 10 is larger than that of the supporting spring 11, so that the supporting spring 11 can be conveniently placed in the groove 10 of the limiter 9;
the limiter 9 and the ball rod 12 form an elastic structure through the supporting spring 11, and the top of the supporting spring 11 is attached to the bottom of the ball rod 12, so that the ball rod 12 can compress the supporting spring 11, and the ball rod 12 can move;
the ball rod 12 is provided with the check blocks 13, the number of the ball rod 12 and the number of the check blocks 13 are 4, and the 4 check blocks 13 are respectively arranged at one side of the 4 ball rods 12, so that the ball rod 12 can be supported and fixed in a single direction under the action of the check blocks 13;
the ball rod 12 and the circular groove 15 form a movable structure, and the size of the protruding part at the top of the ball rod 12 is the same as that of the circular groove 15, so that the ball rod 12 can be conveniently clamped into the circular groove 15, and the ball rod 12 can rotate along with the circular groove 15;
be provided with circular groove 15 on the driving motor axle 14, and the quantity of circular groove 15 is 4 to 4 the impartial distance in circular groove 15 sets up on the outer wall of driving motor axle 14, have made things convenient for through circular groove 15 effect down, drive ball rod 12 that can be fine rotates.
The working principle is as follows: when the unidirectional protection torque limiter used on the screw twisting robot is used, according to the figures 1, 4 and 5, when the torque limiter is installed and fixed, the right clamping plate 2 on the driven shaft 1 is attached and connected with the left clamping plate 6 on the driving shaft 8, the limiting block 5 on the left clamping plate 6 is clamped into the limiting groove 4 on the right clamping plate 2 for limiting installation and fixing, the fixing bolt 3 penetrates through the upper surface of the right clamping plate 2 and is simultaneously inserted into the threaded groove 7 on the left clamping plate 6, and the fixing bolt 3 is rotated simultaneously, so that the fixing bolt 3 can fixedly install the left clamping plate 6 and the right clamping plate 2, and the purpose of improving the fixed installation effect can be well achieved;
according to fig. 1, 2 and 3, after the torque limiter is fixed on the driven shaft 1, the device can be started, so that the driving device drives the driving motor shaft 14 to rotate, after the driving shaft 8 is connected, the driving motor shaft 14 can drive the driven shaft 1 on the limiter 9 to rotate, so that the driven shaft 1 can drive the screwing robot to work, when the machinery runs and is overloaded, the ball rod 12 in the limiter 9 compresses the supporting spring 11 in the groove 10, so that the ball rod 12 is separated from the circular groove 15 on the driving motor shaft 14, so that the driving motor shaft 14 is separated from the limiter 9, at this time, the driving motor shaft 14 will be self-transmitted, so as to protect the driving device, and the stop 13 on the ball rod 12 provides a unidirectional protection fastener, when the driving motor shaft 14 rotates reversely, the stop 13 will block the ball rod 12 to prevent the ball rod 12 from pressing the support spring 11, so that the ball rod 12 will not disengage from the circular groove 15, and the torque limiter 9 will not overload the driving device.
Those not described in detail in this specification are within the skill of the art.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.