CN219171232U

CN219171232U - Torque overload protection device of oil sludge model cutting machine

Info

Publication number: CN219171232U
Application number: CN202320446962.4U
Authority: CN
Inventors: 李辉; 刘丽曼; 施冬冬
Original assignee: Shanghai Huace Liangyi Precision Instrument Co ltd
Current assignee: Shanghai Huace Liangyi Precision Instrument Co ltd
Priority date: 2023-03-10
Filing date: 2023-03-10
Publication date: 2023-06-13
Anticipated expiration: 2033-03-10

Abstract

The utility model relates to the technical field of oil sludge model cutting machines, in particular to a torque overload protection device of an oil sludge model cutting machine.

Description

Torque overload protection device of oil sludge model cutting machine

Technical Field

Background

The oil sludge model cutting machine is used for various large automobile body design and manufacturing enterprises and professions engaged in model development, meets the requirements of quick manufacture and detection of design models, accelerates the development speed of new products, and is a product with extremely high cost performance.

The cutting tool is driven to rotate by the motor to cut the oil sludge model, and the angle and the position of the tool can be moved by setting the rotating shaft to form 90-degree rotation, so that the cutting range of the tool is enlarged.

In the prior art, as in the sludge model chipper proposed in patent application number "cn201320407521.X", when workpiece cutting is performed, only the normal processing function of the equipment is completed, but when overload or accident is encountered, no early warning and protection system exists, and often when a motor is overloaded, the machine cannot be stopped in time, so that two results of workpiece damage or equipment damage occur.

Disclosure of Invention

The utility model aims to provide a torque overload protection device of an oil sludge model cutting machine, which aims to solve the problems in the background technology.

The aim of the utility model can be achieved by the following technical scheme:

the torque overload protection device of the oil sludge model cutting machine comprises a motor and a support frame, wherein the output end of the motor is fixedly connected with a rotating rod, one end of the rotating rod is fixedly connected with a cutting tool, a torque overload sensor is fixedly installed on the motor, and an electric cabinet is fixedly connected on the support frame.

The support frame is provided with an annular groove, the outer surface of the rotating rod is fixedly connected with a connecting ring which is positioned in the annular groove, the outer surface of the connecting ring is fixedly connected with a plurality of cambered surface protrusions which are in annular arrays, movable speed reduction contact blocks are arranged in the support frame and positioned on two sides of the connecting ring, and one side, close to the connecting ring, of each speed reduction contact block is a cambered surface.

Preferably, the torque overload sensor is electrically connected with the electric cabinet, the electric cabinet is electrically connected with the motor, and the electric cabinet is used for early warning tripping to stop the operation of the motor.

Preferably, the top fixedly connected with fixed bolster of support frame, the motor is fixed in the top of fixed bolster inner wall.

Preferably, the bottom fixedly connected with adapter sleeve piece of support frame inner wall, one side fixedly connected with adjusting spring of adapter sleeve piece inner wall, adjusting spring's one end and speed reduction contact piece fixed connection for drive the speed reduction contact piece and move about.

Preferably, the bottom fixedly connected with electric telescopic handle of support frame inner wall, electric telescopic handle's one end fixedly connected with fly leaf, one side fixedly connected with two connection stay cords of fly leaf, the one end that the connection stay cord kept away from the fly leaf runs through the adapter sleeve piece and with speed reduction contact piece fixed connection.

Preferably, a plurality of guiding shafts are fixedly connected between the top and the bottom of the inner wall of the supporting frame, limit grooves are formed in two sides of the connecting sleeve block, limit blocks are fixedly connected to two sides of the speed reduction contact block, and the limit blocks are in sliding connection with the limit grooves.

The utility model has the beneficial effects that:

the motor torque is detected through the torque overload sensor, tripping can be performed through the electric cabinet when the motor torque is overlarge, the operation of the motor is stopped in time, the phenomenon that the workpiece is damaged or equipment is damaged because the motor of the oil sludge model cutting machine cannot stop when the motor is overloaded is avoided, the electric telescopic rod can stretch simultaneously to enable the deceleration contact block to be in contact with the cambered surface bulge, the friction force generated by contact can accelerate to stop the rotation of the connecting ring and the rotating rod, the motor can be stopped to rotate more rapidly and stably, and the damage to internal elements of the motor caused by sudden stop is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it will be obvious to those skilled in the art that other drawings can be obtained according to these drawings without inventive effort;

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a schematic view of a rear view of the support frame of FIG. 1;

FIG. 3 is a cross-sectional view of the support stand of FIG. 1;

fig. 4 is an enlarged view at a in fig. 3.

Reference numerals in the drawings are as follows:

1. the device comprises a motor, 2, a support frame, 3, a rotating rod, 4, a cutting tool, 5, a torque overload sensor, 6, an electric cabinet, 7, an annular groove, 8, a connecting ring, 9, an arc surface bulge, 10, a speed reduction contact block, 11, a fixed support, 12, a connecting sleeve block, 13, an adjusting spring, 14, an electric telescopic rod, 15, a movable plate, 16, a connecting stay rope, 17, a guide shaft, 18, a limiting groove, 19 and a limiting block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a torque overload protection device of fatlute model cutting machine, includes motor 1 and support frame 2, the output fixedly connected with dwang 3 of motor 1, the one end fixedly connected with cutting tool 4 of dwang 3, fixed mounting has torque overload sensor 5 on the motor 1, fixedly connected with electric cabinet 6 on the support frame 2.

The support frame 2 is provided with an annular groove 7, the outer surface of the rotating rod 3 is fixedly connected with a connecting ring 8 which is positioned in the annular groove 7, the outer surface of the connecting ring 8 is fixedly connected with a plurality of cambered surface bulges 9 which are in annular arrays, the inner part of the support frame 2 is provided with movable decelerating contact blocks 10 which are positioned on two sides of the connecting ring 8, and one side of the decelerating contact blocks 10 close to the connecting ring 8 is a cambered surface.

As shown in fig. 1 and fig. 2, the torque overload sensor 5 is in the prior art, and can detect the torque of the motor, and is matched with the PLC power to realize automatic control by matching with the electric cabinet 6 when the torque reaches a set value, and the motor 1 can drive the cutting tool 4 to rotate anticlockwise through the rotating rod 3 so as to cut the sludge model.

The torque overload sensor 5 is electrically connected with the electric cabinet 6, the electric cabinet 6 is electrically connected with the motor 1, and the electric cabinet 6 is used for early warning tripping to stop the operation of the motor 1.

As shown in fig. 1 and 2, the motor 1 is powered from the electric cabinet 6, and the motor 1 is controlled by an external switch, and when the torque overload sensor 5 detects the torque overload of the motor 1, the electric cabinet 6 will early warn trip to stop the operation of the motor 1.

The top fixedly connected with fixed bolster 11 of support frame 2, motor 1 is fixed in the top of fixed bolster 11 inner wall.

As shown in fig. 1 and 2, the motor 1 is fixed to the top of the support frame 2 by a fixing bracket 11.

The bottom of the inner wall of the support frame 2 is fixedly connected with a connecting sleeve block 12, one side of the inner wall of the connecting sleeve block 12 is fixedly connected with an adjusting spring 13, one end of the adjusting spring 13 is fixedly connected with a speed reduction contact block 10, and the speed reduction contact block 10 is used for driving the speed reduction contact block 10 to move.

As shown in fig. 3 and 4, the adjusting spring 13 has a thrust force to the deceleration contact block 10 in a direction away from the connection block 12.

The bottom fixedly connected with electric telescopic rod 14 of support frame 2 inner wall, the one end fixedly connected with fly leaf 15 of electric telescopic rod 14, one side fixedly connected with two connection stay cords 16 of fly leaf 15, the one end that connection stay cord 16 kept away from fly leaf 15 runs through adapter sleeve piece 12 and with speed reduction contact piece 10 fixed connection.

As shown in fig. 3 and 4, one end of the connecting pull rope 16 tightens the speed reducing contact block 10, so that the speed reducing contact block 10 does not move, and when the rotating rod 3 drives the connecting ring 8 and the cambered surface bulge 9 to rotate, the speed reducing contact block 10 does not contact with the cambered surface bulge 9, and the rotation of the rotating rod 3 and the cutting tool 4 is not blocked.

A plurality of guide shafts 17 are fixedly connected between the top and the bottom of the inner wall of the support frame 2, limit grooves 18 are formed in two sides of the connecting sleeve block 12, limit blocks 19 are fixedly connected to two sides of the speed reduction contact block 10, and the limit blocks 19 are in sliding connection with the limit grooves 18.

As shown in fig. 3 and fig. 4, the moving direction of the connection pull rope 16 can be changed through the guide shaft 17, and the two connection pull ropes 16 can be prevented from being knotted due to mutual contact, and the sliding connection of the limiting block 19 and the limiting groove 18 can enable the speed reduction contact block 10 to only slide along with the limiting block 19 in the direction of the limiting groove 18, so that the movement of the speed reduction contact block 10 is limited, and the speed reduction contact block 10 cannot be separated from the connecting sleeve block 12.

The working principle of the torque overload protection device of the oil sludge model cutting machine provided by the utility model is as follows:

when the motor 1 starts to drive the cutting tool 4 to rotate anticlockwise to cut the oil sludge model through the rotating rod 3, when the torque overload sensor 5 detects that the motor 1 generates torque overload, a feedback signal is sent to the electric control box 6, the electric control box 6 gives an early warning to trip, and the machine stops running the whole loop;

then the electric telescopic rod 14 can be stretched and driven, at the moment, the connecting stay rope 16 does not tighten the deceleration contact block 10 any more, the adjusting spring 13 stretches and pushes the deceleration contact block 10, the deceleration contact block 10 is contacted with the cambered surface bulge 9, and the friction force generated between the deceleration contact block 10 and the cambered surface bulge 9 can accelerate and stop the rotation of the connecting ring 8 and the rotating rod 3, so that the motor 1 can rapidly and stably stop rotating;

when the cambered surface bulge 9 is contacted with the speed reduction contact block 10, the cambered surface bulge and the speed reduction contact block 10 are both in a curved surface design, so that the cambered surface bulge 9 can press the speed reduction contact block 10 towards the inside of the connecting sleeve block 12, the stop of the rotating rod 3 and the connecting ring 8 can not be immediately hindered, and the damage of internal elements of the motor 1 caused by the sudden stop of the motor 1 is avoided;

finally, the electric telescopic rod 14 is contracted, the connecting pull rope 16 is pulled by the movable plate 15, and the connecting pull rope 16 drives the speed reduction contact block 10 and the cambered surface bulge 9 to be separated, so that the normal rotation of the rotating rod 3 driven by the motor 1 is not influenced.

Compared with the related art, the torque overload protection device of the oil sludge model cutting machine has the following beneficial effects:

the motor torque is detected through the torque overload sensor 5, and when the motor torque is overlarge, the motor can be tripped through the electric cabinet 6 in early warning, the operation of the motor 1 is stopped in time, the phenomenon that the motor 1 of the oil sludge model cutting machine cannot stop to cause workpiece damage or equipment to be damaged when the motor is overloaded is avoided, the electric telescopic rod 14 can be stretched simultaneously to enable the decelerating contact block 10 to be contacted with the cambered surface bulge 9, the friction force generated by contact can accelerate to stop the rotation of the connecting ring 8 and the rotating rod 3, the motor 1 can be stopped to rotate more quickly and stably, and the damage to internal elements of the motor 1 caused by sudden stop is avoided.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The torque overload protection device of the oil sludge model cutting machine comprises a motor (1) and a support frame (2), wherein the output end of the motor (1) is fixedly connected with a rotating rod (3), one end of the rotating rod (3) is fixedly connected with a cutting tool (4), and the torque overload protection device is characterized in that a torque overload sensor (5) is fixedly installed on the motor (1), and an electric cabinet (6) is fixedly connected on the support frame (2);

offer ring channel (7) on support frame (2), the surface of dwang (3) and be located the inside fixedly connected with go-between (8) of ring channel (7), the surface fixedly connected with of go-between (8) is a plurality of cambered surface protruding (9) that are annular array, the inside of support frame (2) just is located the both sides of go-between (8) and all is provided with mobilizable speed reduction contact piece (10), and one side that speed reduction contact piece (10) is close to go-between (8) is the cambered surface.

2. The torque overload protection device of the sludge model cutting machine according to claim 1, wherein the torque overload sensor (5) is electrically connected with the electric cabinet (6), the electric cabinet (6) is electrically connected with the motor (1), and the electric cabinet (6) is used for pre-warning tripping to stop the operation of the motor (1).

3. The torque overload protection device of the oil sludge model cutting machine according to claim 2, wherein the top of the supporting frame (2) is fixedly connected with a fixing bracket (11), and the motor (1) is fixed on the top of the inner wall of the fixing bracket (11).

4. The torque overload protection device of the oil sludge model cutting machine according to claim 1, wherein a connecting sleeve block (12) is fixedly connected to the bottom of the inner wall of the supporting frame (2), an adjusting spring (13) is fixedly connected to one side of the inner wall of the connecting sleeve block (12), and one end of the adjusting spring (13) is fixedly connected with the deceleration contact block (10) and used for driving the deceleration contact block (10) to move.

5. The torque overload protection device of the oil sludge model cutting machine according to claim 4, wherein an electric telescopic rod (14) is fixedly connected to the bottom of the inner wall of the supporting frame (2), one end of the electric telescopic rod (14) is fixedly connected with a movable plate (15), one side of the movable plate (15) is fixedly connected with two connecting pull ropes (16), and one end, far away from the movable plate (15), of the connecting pull ropes (16) penetrates through the connecting sleeve block (12) and is fixedly connected with the speed reduction contact block (10).

6. The torque overload protection device of the oil sludge model cutting machine according to claim 1, wherein a plurality of guide shafts (17) are fixedly connected between the top and the bottom of the inner wall of the supporting frame (2), limit grooves (18) are formed in two sides of the connecting sleeve block (12), limit blocks (19) are fixedly connected to two sides of the deceleration contact block (10), and the limit blocks (19) are in sliding connection with the limit grooves (18).