CN111730400B

CN111730400B - Electric construction machine

Info

Publication number: CN111730400B
Application number: CN202010607002.2A
Authority: CN
Inventors: 邵彬
Original assignee: Hunan Yunshan Construction Engineering Co ltd
Current assignee: Hunan Yunshan Construction Engineering Co.,Ltd.
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-08-24
Anticipated expiration: 2040-06-29
Also published as: CN111730400A

Abstract

The invention discloses an electric construction machine, which structurally comprises a handrail, a shield, a cutting blade, a base, a connecting frame and a driver, wherein the handrail is fixedly connected with the cutting blade in an embedding way, the shield is connected with the driver in a hinge way, the connecting frame is welded with the base, the driver is arranged at the left side position of the handrail, the cutting blade is movably clamped with the driver, when the cutting blade rotates at high speed to cut thin square flat tubes with holes on four sides, the square flat tubes generate reverse thrust on the cutting blade when contacting the square flat tubes, a buffer mechanism on the cutting blade can slide backwards along the inner ring and the outer ring, so that the force of the cutting blade directly pressing the square flat tubes can be buffered and dissolved, through the throwing force generated when the cutting blade rotates at high speed, a swinging plate in a plate surface can swing back and forth along a fixed block, and forth, and back along the fixed block, so that the swinging plate can swing to generate air flow, the heat generated in the plate surface can be taken out from the air permeable block.

Description

Electric construction machine

Technical Field

The invention relates to the field of construction machinery, in particular to an electric construction machinery.

Background

The building section bar cutting machine is mainly used for cutting metal steel for buildings, can press the handle downwards through manual work, thereby make cutting blade can cut off the metal steel on the operation panel, extensively apply to the cutting off processing of steel such as square flat pipe and I-steel, based on the above-mentioned description the inventor finds that the following shortcomings mainly exist in a current electrodynamic type construction machine, for example:

because the cutting blade on the building section bar cutting machine is perpendicular downwards to steel cutting to when cutting blade is cutting the foraminiferous thin square flat pipe in four sides, and the diameter in hole accounts for the horizontal proportion of the flat pipe in square great, then make cutter easily can be earlier with square pipe bending when oppressing foraminiferous position, thereby lead to the crooked condition to appear in the square pipe incision after the cutting is accomplished.

Disclosure of Invention

In view of the above problems, the present invention provides an electric construction machine.

In order to achieve the purpose, the invention is realized by the following technical scheme: an electric construction machine structurally comprises handrails, a protective cover, a cutting blade, a base, a connecting frame and a driver, wherein the handrails are fixedly embedded and connected with the cutting blade; the cutting blade comprises a buffer mechanism, an elastic strip, an inner ring and an outer ring, wherein the buffer mechanism is movably clamped between the inner ring and the outer ring, the elastic strip is installed at the inner position of the outer ring, and the outer ring and the inner ring are of an integrated structure.

As a further optimization of the invention, the inner ring comprises an outer push plate, extension strips, guide frames and a middle fixed ring, the outer push plate and the extension strips are of an integrated structure, the extension strips are in clearance fit with the guide frames, the guide frames are fixedly connected with the middle fixed ring in an embedded mode, the number of the outer push plates is four, and the outer push plates are uniformly distributed on the outer surface of the middle fixed ring in a symmetrical mode through the matching of the extension strips and the guide frames.

As a further optimization of the present invention, the buffer mechanism includes a force application rod, a knife surface, an elastic strip, a frame body, and an inner slide block, the force application rod is in clearance fit with the inner slide block, the knife surface and the inner slide block are integrated, the elastic strip is installed between the inner slide block and the knife surface, the inner slide block is in clearance fit with the frame body, and the inner slide block can push the force application rod downward by the thrust generated by the mechanism to the inner slide block.

As a further optimization of the invention, the knife face comprises an upper sliding block, a plate surface and guide blocks, the upper sliding block is movably clamped with the guide blocks, the guide blocks are fixedly embedded with the plate surface, five upper sliding blocks are arranged, and the upper sliding blocks are uniformly distributed on the plate surface in a fan shape through the matching of the guide blocks.

As a further optimization of the invention, the board surface comprises a frame, an air permeable block, a swinging plate and a fixed block, wherein the air permeable block and the frame are in an integrated structure, the elastic strip is hinged with the swinging plate, the fixed block is fixedly embedded with the frame, and the air permeable block is provided with two through holes inside and outside.

As a further optimization of the invention, the air permeable block comprises a bearing frame, two rebound strips, two extension blocks and two inner fixing rollers, wherein the extension blocks are in clearance fit with the bearing frame, the rebound strips are arranged between the extension blocks and the bearing frame, the inner fixing rollers are movably clamped at the inner positions of the extension blocks, and the extension blocks are uniformly and symmetrically distributed on the left side and the right side of the bearing frame.

As a further optimization of the invention, the internal fixing roller comprises an external connecting block, a boosting strip, a stress plate and an internal connecting ring, the external connecting block and the stress plate are of an integrated structure, one end of the boosting strip is connected with the side surface of the external connecting block, the other end of the boosting strip is embedded and fixed at the position of the outer surface of the internal connecting ring, the stress plate is hinged with the internal connecting ring, the number of the stress plates is eight, and the outer surfaces of the internal connecting ring are uniformly and symmetrically distributed.

The invention has the following beneficial effects:

1. when cutting blade rotates at a high speed and cuts the thin square flat tube with holes on four sides, when the cutting blade contacts the square flat tube, the reverse thrust generated by the square flat tube to the cutting blade can enable the buffer mechanism on the cutting blade to slide backwards between the inner ring and the outer ring, so that the force of the cutting blade directly pressing the square flat tube can be buffered and released.

2. Through the throwing power that produces when cutting blade rotates at a high speed, can make the inside swing board of face carry out the swing back and forth along the fixed block to the air current that makes the swing board swing produce can take away the heat that the face inside produced from ventilative piece, and the effectual heat that has avoided cutting blade knife face to produce when rotating is difficult to carry out radiating condition.

Drawings

Fig. 1 is a schematic structural view of an electric construction machine according to the present invention.

FIG. 2 is a front half-section schematic view of a cutting blade according to the present invention.

FIG. 3 is a schematic structural diagram of an elevational cross-section of the inner ring of the present invention.

FIG. 4 is a schematic structural diagram of a front cross section of the buffering mechanism of the present invention.

Fig. 5 is a structural schematic diagram of a front half section of a knife face of the invention.

FIG. 6 is a schematic structural view of a front half section of a plate surface according to the present invention.

Fig. 7 is a schematic structural view of a front cross section of the air-permeable block of the present invention.

FIG. 8 is a schematic structural view of a front cross section of the internally fixed roll of the present invention.

In the figure: an armrest-1, a shield-2, a cutting blade-3, a base-4, a connecting frame-5, a driver-6, a buffer mechanism-31, an elastic strip-32, an inner ring-33, an outer ring-34, an outer push plate-a 1, an extension strip-a 2, a guide frame-a 3, a middle fixed ring-a 4, a force application rod-b 1, a knife face-b 2 and an elastic strip-b 3, frame-b 4, inner slide block-b 5, upper slide block-b 21, plate surface-b 22, guide block-b 23, frame-c 1, air permeable block-c 2, swinging plate-c 3, fixing block-c 4, bearing frame-c 21, rebound strip-c 22, extension block-c 23, inner fixing roller-c 24, external connection block-d 1, boosting strip-d 2, stress plate-d 3 and inner connecting ring-d 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

As shown in fig. 1-5:

the invention provides an electric construction machine, which structurally comprises a handrail 1, a shield 2, a cutting blade 3, a base 4, a connecting frame 5 and a driver 6, wherein the handrail 1 is fixedly connected with the cutting blade 3 in an embedding manner, the shield 2 is connected with the driver 6 in a hinge manner, the connecting frame 5 is welded with the base 4, the driver 6 is arranged at the left side position of the handrail 1, and the cutting blade 3 is movably clamped with the driver 6; the cutting blade 3 comprises a buffer mechanism 31, an elastic strip 32, an inner ring 33 and an outer ring 34, wherein the buffer mechanism 31 is movably clamped between the inner ring 33 and the outer ring 34, the elastic strip 32 is installed in the inner position of the outer ring 34, and the outer ring 34 and the inner ring 33 are of an integrated structure.

The inner ring 33 comprises an outer pushing plate a1, an extension bar a2, a guide frame a3 and a middle fixing ring a4, the outer pushing plate a1 and the extension bar a2 are of an integrated structure, the extension bar a2 and the guide frame a3 are in clearance fit, the guide frame a3 and the middle fixing ring a4 are fixedly embedded, the number of the outer pushing plates a1 is four, the extension bar a2 and the guide frame a3 are uniformly distributed on the outer surface of the middle fixing ring a4 in a symmetrical mode through matching, and the extension bar a2 can slide outwards along the guide frame a3 through throwing force generated by rotation of a mechanism, so that the guide frame a3 can push the middle fixing ring a4 to extend outwards.

The buffer mechanism 31 comprises a force application rod b1, a knife surface b2, an elastic strip b3, a frame b4 and an inner slide block b5, wherein the force application rod b1 is in clearance fit with the inner slide block b5, the knife surface b2 and the inner slide block b5 are in an integrated structure, the elastic strip b3 is installed between the inner slide block b5 and the knife surface b2, the inner slide block b5 is in clearance fit with the frame b4, and the force application rod b1 can be pushed downwards by the inner slide block b5 through thrust generated by the mechanism on the inner slide block b5, so that the force application rod b1 can apply pressure on the knife surface b 2.

The knife surface b2 comprises an upper slider b21, a plate surface b22 and guide blocks b23, the upper slider b21 is movably clamped with the guide blocks b23, the guide blocks b23 are fixedly connected with the plate surface b22 in an embedded mode, five upper sliders b21 are arranged, the guide blocks b23 are evenly matched with the plate surface b22 in a fan-shaped mode, and the upper sliders b21 can slide upwards along the guide blocks b23 to shrink through thrust generated by an object to the upper sliders b 21.

The detailed use method and action of the embodiment are as follows:

in the invention, because the cutting blade 3 vertically downwards cuts steel, so that the cutting blade 3 can easily bend the square tube when pressing the hole part when cutting the thin square flat tube with holes on four sides, and the diameter of the hole accounts for the transverse proportion of the square flat tube, thereby causing the cut of the square tube to be bent, the problems can be effectively solved through the matching of the buffer mechanism 31 on the cutting blade 3 and the inner ring 33, when the cutting blade 3 rotates at high speed to cut the thin square flat tube with holes on four sides, when the cutting blade 3 contacts the square flat tube, the buffer mechanism 31 on the cutting blade 3 can slide backwards along the space between the inner ring 33 and the outer ring 34 through the counter-pulling force generated by the square flat tube on the cutting blade 3, thereby buffering the force of the cutting blade 3 directly pressing the square flat tube, and the throwing force generated when the inner ring 33 rotates can make the extending strip a2 slide out along the guide frame a3, so that the extending strip a2 can generate outward thrust on the outer push plate a1, so that the outer push plate a1 can push the inner slide block b5 on the buffer mechanism 31, so that the inner slide block b5 can slide inwards along the frame b4, the inner slide block b5 can push the force applying rod b1 to spread along the inner slide block b5, so that the force applying rod b1 can apply pressure on two ends of the knife surface b2, so that the cutting force of the inner ring 33 on the opposite flat tubes can be enhanced by the inner ring 33, so that the flat tubes can be cut from the outer surfaces of the flat tubes of the attaching side, in conclusion, the situation that the cut of the flat tubes of the side is easy to bend when the inner flat tube cutting blade of the knife surface b2 is cut by directly pressing the inner ring 33, thrust generated by the cutting surface of the square flat pipe to the upper sliding block b21 on the cutting surface b2 can enable the upper sliding block b21 to slide upwards along the guide block b23 to shrink, so that the square flat pipe can be pushed downwards by the upper sliding block b21 when the half of the square flat pipe is cut and needs to be pulled out, and the cutting blade 3 can be pulled out from the half-cut square flat pipe more easily.

Example 2

As shown in fig. 6-8:

the plate surface b22 comprises a frame c1, an air permeable block c2, a swinging plate c3 and a fixed block c4, the air permeable block c2 and the frame c1 are of an integrated structure, the elastic strip b3 is hinged with the swinging plate c3, the fixed block c4 is fixedly embedded with the frame c1, two holes which are through from inside to outside are formed in the air permeable block c2, the swinging plate c3 can swing along the fixed block c4 through the rotation of the mechanism, and therefore air flow generated by the swinging of the swinging plate c3 can take heat on the frame c1 out of the holes in the air permeable block c 2.

The ventilating block c2 comprises a bearing frame c21, two elastic resilient strips c22, an extending block c23 and an inner fixing roller c24, the extending block c23 is in clearance fit with the bearing frame c21, the elastic resilient strips c22 are installed between the extending block c23 and the bearing frame c21, the inner fixing roller c24 is movably clamped at the inner position of the extending block c23, the extending blocks c23 are two and are uniformly distributed symmetrically on the left side and the right side of the bearing frame c21, airflow generated in the mechanism generates outward thrust on the extending block c23, and the extending block c23 can slide outwards along the bearing frame c 21.

The inner fixing roller c24 comprises an outer connecting block d1, a boosting bar d2, a stress plate d3 and an inner connecting ring d4, the outer connecting block d1 and the stress plate d3 are of an integrated structure, one end of the boosting bar d2 is connected with the side face of the outer connecting block d1, the other end of the boosting bar d2 is embedded in the outer surface of the inner connecting ring d4, the stress plate d3 is hinged with the inner connecting ring d4, eight stress plates d3 are arranged, the outer surfaces of the inner connecting rings d4 are uniformly and symmetrically distributed, and thrust can be generated on the stress plate d3 through air flow blown out of the inside of the mechanism, so that the stress plate d3 drives the inner connecting ring d4 to rotate.

The detailed use method and action of the embodiment are as follows:

in the invention, because the cutting blade 3 generates a large amount of heat due to friction when the square flat tube is cut by rotation, the knife face b2 on the cutting blade 3 is stuck to cut into the square flat tube when the square flat tube is cut, so that the heat on the knife face b2 is difficult to dissipate heat, the service life of the cutting blade 3 is easy to be reduced for a long time, the problem can be effectively solved through the matching of the swinging plate c3 on the plate face b22 and the air permeable block c2, the swinging plate c3 in the plate face b22 can swing back and forth along the fixed block c4 through the swinging force generated when the cutting blade 3 rotates at high speed, so that the air flow generated by the swinging of the swinging plate c3 can be blown out through the air permeable block c2, and the air flow swung out through the swinging plate c3 generates outward thrust on the extending block c23 on the air permeable block c2, so that the extending block c23 can slide out along the receiving frame c21, therefore, the heat generated by the knife face b2 when the cutting blade 3 rotates can be effectively prevented from being easily dissipated by the swinging air flow of the swinging plate c3 from the extension block c23, when the swinging plate c3 stops swinging, the extension block c23 can be pushed inwards along the bearing frame c21 to be reset through the resilient strip c22, external dust can be prevented from entering the frame c1 through the hole in the ventilation block c2, and the thrust can be generated on the stress plate d3 on the inner fixing roller c24 through the air flow blown out from the c1, so that the stress plate d3 can drive the inner ring d4 to rotate, and the stress plate d3 can swing back and forth when rotating through the matching of the boosting strip d2, so that the stress plate d3 can further accelerate the heat dissipation speed of the knife face b 2.

The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.

Claims

1. The utility model provides an electrodynamic type construction machinery, its structure includes handrail (1), guard shield (2), cutting blade (3), base (4), links up frame (5), driver (6), handrail (1) and cutting blade (3) are embedded solid and are connected, guard shield (2) and driver (6) hinged joint, link up frame (5) and base (4) and weld mutually, install in the left side position of handrail (1) driver (6), its characterized in that: the cutting blade (3) is movably clamped with the driver (6);

the cutting blade (3) comprises a buffer mechanism (31), an elastic strip (32), an inner ring (33) and an outer ring (34), the buffer mechanism (31) is movably clamped between the inner ring (33) and the outer ring (34), the elastic strip (32) is installed at the inner position of the outer ring (34), and the outer ring (34) and the inner ring (33) are of an integrated structure;

the inner ring (33) comprises an outer push plate (a1), an extension bar (a2), a guide frame (a3) and a middle fixing ring (a4), the outer push plate (a1) and the extension bar (a2) are of an integrated structure, the extension bar (a2) is in clearance fit with the guide frame (a3), the guide frame (a3) is fixedly connected with the middle fixing ring (a4) in an embedding manner, the number of the outer push plate (a1) is four, the extension bar (a2) can slide outwards along the guide frame (a3) through the matching of the extension bar (a2) and the guide frame (a3), and the outer surface of the middle fixing ring (a4) is symmetrically distributed, and the extension bar (a2) can slide outwards through the throwing force generated by the rotation of the mechanism, so that the guide frame (a3) can push the middle fixing ring (a4) to extend outwards;

the buffer mechanism (31) comprises a force application rod (b1), a knife surface (b2), an elastic strip (b3), a frame body (b4) and an inner sliding block (b5), wherein the force application rod (b1) is in clearance fit with the inner sliding block (b5), the knife surface (b2) and the inner sliding block (b5) are in an integrated structure, the elastic strip (b3) is installed between the inner sliding block (b5) and the knife surface (b2), the inner sliding block (b5) is in clearance fit with the frame body (b4), and the inner sliding block (b5) can push the force application rod (b1) downwards through thrust generated by the mechanism on the inner sliding block (b5), so that the force application rod (b1) can apply pressure on the knife surface (b 2).

2. The electric construction machine according to claim 1, wherein: the knife face (b2) comprises an upper sliding block (b21), a plate face (b22) and a guide block (b23), the upper sliding block (b21) is movably clamped with the guide block (b23), and the guide block (b23) is fixedly connected with the plate face (b 22).

3. The electric construction machine according to claim 2, wherein: the plate surface (b22) comprises a frame (c1), an air permeable block (c2), a swinging plate (c3) and a fixing block (c4), the air permeable block (c2) and the frame (c1) are of an integrated structure, the elastic strip (b3) is hinged with the swinging plate (c3), and the fixing block (c4) is fixedly embedded in the frame (c 1);

the breathable block (c2) comprises a bearing frame (c21), a rebound strip (c22), a protruding block (c23) and an internal fixing roller (c34), wherein the protruding block (c23) is in clearance fit with the bearing frame (c21), the rebound strip (c22) is installed between the protruding block (c23) and the bearing frame (c21), and the internal fixing roller (c24) is movably clamped at the internal position of the protruding block (c 23);

the inner fixing roller (c24) comprises an outer connecting block (d1), a boosting strip (d2), a stress plate (d3) and an inner connecting ring (d4), wherein the outer connecting block (d1) and the stress plate (d3) are of an integrated structure, one end of the boosting strip (d2) is connected with the side face of the outer connecting block (d1), the other end of the boosting strip (d2) is embedded in the outer surface of the inner connecting ring (d4), and the stress plate (d3) is hinged with the inner connecting ring (d 4).