CN107497970B - Light steel bar quick breaker - Google Patents
Light steel bar quick breaker Download PDFInfo
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- CN107497970B CN107497970B CN201710680129.5A CN201710680129A CN107497970B CN 107497970 B CN107497970 B CN 107497970B CN 201710680129 A CN201710680129 A CN 201710680129A CN 107497970 B CN107497970 B CN 107497970B
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- hydraulic cylinder
- assembly
- plunger
- oil
- piston
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 39
- 239000010959 steel Substances 0.000 title claims abstract description 39
- 238000010008 shearing Methods 0.000 claims abstract description 18
- 238000005086 pumping Methods 0.000 claims abstract description 14
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims abstract description 13
- 230000001105 regulatory effect Effects 0.000 claims description 24
- 230000003068 static effect Effects 0.000 claims description 20
- 238000007789 sealing Methods 0.000 claims description 19
- 230000000670 limiting effect Effects 0.000 claims description 15
- 230000017525 heat dissipation Effects 0.000 claims description 10
- 238000005452 bending Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 7
- 238000003825 pressing Methods 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 238000001125 extrusion Methods 0.000 claims description 2
- 230000002787 reinforcement Effects 0.000 claims 4
- 239000003921 oil Substances 0.000 description 137
- 238000000034 method Methods 0.000 description 6
- 230000003014 reinforcing effect Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 230000007246 mechanism Effects 0.000 description 3
- 229910000997 High-speed steel Inorganic materials 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 208000012260 Accidental injury Diseases 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000011150 reinforced concrete Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21F—WORKING OR PROCESSING OF METAL WIRE
- B21F11/00—Cutting wire
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1447—Pistons; Piston to piston rod assemblies
- F15B15/1452—Piston sealings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
- F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
- F15B15/1423—Component parts; Constructional details
- F15B15/1457—Piston rods
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Shearing Machines (AREA)
Abstract
The invention discloses a light steel bar quick breaker which is characterized by comprising a shell assembly, a hydraulic cylinder assembly fixedly arranged at one end of the shell assembly, a handle integrated hood fixedly arranged at the other end of the shell assembly and a working head assembly arranged at the end part of the hydraulic cylinder assembly, wherein a piston spring assembly is arranged between the working head assembly and the interior of the hydraulic cylinder assembly, and an oil pumping device assembly is arranged between the hydraulic cylinder assembly and the interior of the shell assembly; the quick breaker has the advantages of light structure, convenient operation, safety, reliability, long service life, quick execution, low working noise and good ergonomics, and is suitable for shearing reinforcing steel bars with various diameters.
Description
Technical Field
The invention relates to the technical field of quick shearing mechanical equipment for reinforcing steel bars, in particular to a light reinforcing steel bar quick breaker.
Background
Along with the continuous development of urban areas in China, the construction and fire-fighting technology is also developed, and reinforced concrete structures are commonly used in high-rise buildings or other high-rise building facilities. In construction, a large number of reinforcing bars are used, so that a reinforcing bar shearing device is required for shearing reinforcing bars to a fixed length on construction sites or fire fighting and disaster relief, long-handled manual locking pliers can be used for round bar steel with a diameter of more than ten millimeters, and hydraulic shears or a shearing machine driven by a servo motor can be used for thick steel wires. In various rough steel bar shearing machines existing in the market, the shearing heads of the rough steel bar shearing machines basically adopt two rectangular shearing heads, a steel bar is placed between a movable shearing tool and a static shearing tool, and then the two shearing heads are folded in opposite directions to shear the steel bar. Through market research, at present market bar shear machinery is all heavier, and fixed bar shear machinery occupies more, and bar shear machinery weight of hand-held type reinforcing bar is generally heavier, sets up the oil circuit on the work head mechanism, leads to work head weight big, and is bulky, often takes place the oil leak phenomenon, because the unreasonable structural design such as exhaust hole is seted up to the work head of most bar shear machinery in the market, leads to often taking place dust, debris to block up the oil duct when the operation, often takes place not out the sword, the hydraulic pressure is gone, burn the motor. At present, most steel bar shearing machines are steel in hydraulic cylinders and shells, the structure is heavy, the arrangement of internal oil channels is unreasonable, the explosion of cylinders is frequently caused, in addition, the arrangement of internal mechanisms is unreasonable, and at present, most steel bar shearing machines have large working noise, short service life, poor sealing performance, large abrasion of moving parts and low oil pressure. Because of poor manufacturing process, poor sealing, part misalignment, great abrasion and other bad conditions easily occur between the joint surfaces, and the adverse conditions of reduced cutting mechanical performance, increased temperature, increased noise, reduced service life and the like of some reinforcing steel bars are caused. The present market needs a steel bar shearing machine with the advantages of light structure, convenient operation, safety, reliability, long service life, quick execution, low working noise, good man-machine engineering and the like, and therefore, the invention provides a light steel bar quick breaker.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides the light steel bar quick breaker which has the advantages of small volume, simple structure, flexible use, high working efficiency, safety and convenience.
The technical scheme of the invention is as follows:
the light steel bar quick breaker is characterized by comprising a shell assembly, a hydraulic cylinder assembly fixedly arranged at one end of the shell assembly, a handle integrated hood fixedly arranged at the other end of the shell assembly and a working head assembly arranged at the end part of the hydraulic cylinder assembly, wherein a piston spring assembly is arranged between the working head assembly and the inside of the hydraulic cylinder assembly, and an oil pumping device assembly is arranged between the hydraulic cylinder assembly and the inside of the shell assembly; the working head assembly comprises a working head carrier and a movable tool bit and a static tool bit which are arranged on the working head carrier; the piston spring assembly comprises a piston head and a piston rod, a movable cutter head threaded hole is formed in the head of the piston rod, and the movable cutter head is fixed in the movable cutter head threaded hole through an inner hexagon bolt; the shell assembly comprises a shell and an oil pan fixedly connected with the shell; the hydraulic cylinder assembly comprises a hydraulic cylinder, and a group of pressure oil outlets are formed in the plane of the end part of the hydraulic cylinder; the oil pumping device assembly comprises a direct current brushless motor, an eccentric wheel shaft arranged on the direct current brushless motor, a plunger supporting block arranged at the end part of the eccentric wheel shaft and a group of plungers arranged on the plunger supporting block, wherein a group of oil inlet deep grooves are formed in the plunger supporting block, a pressure oil inlet is formed in a position close to the oil inlet deep grooves, a needle roller bearing is arranged in the plunger supporting block, the eccentric wheel shaft is matched with the needle roller bearing, and is in extrusion contact with the plungers in sequence under the driving of the direct current brushless motor, so that pressure oil in the oil pan enters the pressure oil inlet from the oil inlet deep grooves, and then enters the hydraulic cylinder through the pressure oil outlet, and a piston rod pushes a movable cutter head to perform shearing work.
The light steel bar quick breaker is characterized in that a U-shaped notch for placing steel bars is formed in the position between a movable cutter head and a static cutter head on the working head carrier; one side of the working head carrier is formed by connecting a straight surface structure with an inclined surface structure, the other side of the working head carrier is formed by connecting a straight surface structure, the tail end of the working head carrier is provided with a working head thread, and the lower part of the working head thread is sleeved with an O-shaped sealing ring; the middle part of the working head thread is provided with a locking screw hole, and the working head assembly is limited in the hydraulic cylinder through a screw; a boss is arranged on one side of the movable cutter head on the working head carrier, and an adjusting and limiting bolt for clamping and limiting reinforcing steel bars with different diameters is arranged on the boss; the lower part of the working head carrier is provided with a groove for reducing weight; a semicircular column groove which is convenient for installing and detaching the movable cutter head is formed in the upper part of the movable cutter head carrier, which is close to the movable cutter head; a guard board is arranged on the static cutter head; the movable cutter head and the static cutter head are respectively sheet-shaped blades, the cutting edges of the two cutter heads are just tangential in a closed state, and the cutter heads are made of alloy steel or high-speed steel.
The light steel bar quick breaker is characterized in that the piston head adopts a flat cake-shaped structure, an annular channel is formed at the forefront end of the piston head, and a piston sealing ring is arranged in the annular channel; the piston rod is of an L-shaped structure, a reset spring is sleeved on the piston rod, a flat key groove is formed in the piston rod, a flat key is arranged in the flat key groove, a bolt hole is formed in the middle of the flat key, and the flat key is fixed in the flat key groove of the piston rod through an inner hexagon bolt; and a working head sealing ring is arranged at the assembling position of the front part of the piston rod and the working head assembly.
The light steel bar quick breaker is characterized in that the surface of a piston head is provided with a special-shaped piston hole, two opposite positions on the special-shaped piston hole are respectively provided with a sharp mouth-shaped notch, a small piston is arranged in the special-shaped piston hole and comprises a small piston head and a small piston rod, the small piston rod adopts a stepped cylinder structure, the head is thinner, the bottom is thicker, an outer channel is formed at the position close to the thick and thin boundary point of the small piston rod, and a small clamp is arranged in the outer channel; the small piston rod is provided with a lock nut, the lower part of the lock nut is sleeved with a return spring, and the upper part of the lock nut is sleeved with an over-position protection spring.
The light steel bar quick breaker is characterized in that the hydraulic cylinder adopts a cylindrical structure, a locking screw hole is formed in the front of the hydraulic cylinder, and a hydraulic cylinder mounting hole and a plunger support block mounting hole are further formed in the plane of the end part of the hydraulic cylinder; the pressure oil outlets are provided with three pairs, each pair of the pressure oil outlets are closely adjacent to each other, each pair of the pressure oil outlets are provided with a U-shaped counter bore, the U-shaped counter bores are provided with sealing rings, the three pairs of the pressure oil outlets are all arranged on the same circumference, and the included angle between the adjacent pairs of the pressure oil outlets is 120 degrees; the plunger support block mounting holes are also provided with three pairs, the plunger support block mounting holes and the pressure oil outlets in the circumferential direction are distributed in a staggered manner, and the included angle between the adjacent plunger support block mounting holes in the circumferential direction is 120 degrees; the diameter of the circumference of the plunger support block mounting hole is smaller than that of the pressure oil outlet; the middle position of the end part of the hydraulic cylinder is provided with a ball bearing, the position of the inner wall of the hydraulic cylinder, which is positioned at the positive limit position of the piston, is provided with an oil return hole inlet, the front part of the hydraulic cylinder is provided with a shallow groove, and the shallow groove is provided with a sheath and a color covering strip.
The light steel bar quick breaker is characterized in that the rear part of the hydraulic cylinder is provided with two small platforms, one of the platforms is provided with a one-way valve, the other platform is provided with a regulating valve, and the one-way valve comprises a one-way valve body and steel balls arranged at the front end of the one-way valve body; the regulating valve comprises a regulating valve body, a conical valve core arranged at the front end of the regulating valve body and a pressure limiting spring arranged between the regulating valve body and the conical valve core; an oil return hole, a one-way valve channel hole communicated with the one-way valve and a regulating valve channel hole communicated with the regulating valve are formed in the plane of the end part of the hydraulic cylinder.
A light-duty reinforcing bar quick-break, its characterized in that, DC brushless motor axle head is equipped with the ring flange, the ring flange is close to outer fringe position and has seted up the bolt hole, will fix ring flange and DC brushless motor on the plunger support block through the bolt, the long bolt hole has been seted up on the plunger support block, fixes the plunger support block on the pneumatic cylinder through the long bolt, the plunger support block adopts porous cubic tripod structure, has all seted up the oil feed deep groove on every foot of plunger support block, the inlet port has been seted up between the three feet of plunger support block, be equipped with the filter screen on the inlet port, be equipped with the filter screen clamp plate on the filter screen, press the filter screen on the plunger support block through filter screen clamp plate and long bolt.
The light steel bar quick breaker is characterized in that the plunger comprises a plunger cylinder, a short plunger spring, a long plunger spring and a plunger cap, wherein the plunger cap is in interference fit with a corresponding hole in a plunger support block, an outer groove is formed in the middle of the plunger cap, a plunger seal ring is arranged in the outer groove, and a spring support is arranged between the plunger cap and the plunger cylinder; the upper part and the lower part of the spring support correspondingly abut against the short plunger spring and the long plunger spring, and a gasket and a clamp are arranged on one side of the needle bearing.
The light steel bar quick breaker is characterized in that a soft oil pocket is arranged on the oil pan, the oil pan and the soft oil pocket are integrally formed, the soft oil pocket is made of oil-resistant rubber into a hollow hemispherical structure, an oil pan nut is arranged below the oil pan, and the oil pan is fixedly connected with the shell through the oil pan nut; the shell is made of aluminum materials, a group of heat dissipation rib plates are arranged on the shell, a shell heat dissipation opening is formed in the position, close to the motor, of the shell, flange connection discs are arranged at the front end and the rear end of the shell, and the shell is fixedly connected with the hydraulic cylinder assembly and the handle integrated hood through the flange connection discs.
A light-duty reinforcing bar quick-break, a serial communication port, handle integral type aircraft bonnet, including handle and aircraft bonnet, handle and aircraft bonnet integrated into one piece have seted up the bolt hole on the section lower extreme arc cylinder that bends of handle, the section lower extreme arc cylinder that bends through the bolt handle is fixed on the pneumatic cylinder assembly, has seted up the long bolt hole on the flange face of aircraft bonnet, fixes the aircraft bonnet on the casing through the long bolt, the rear end of aircraft bonnet has set up a set of heat dissipation grid, the front portion of handle sets up start button, the inside hollow structure that adopts of handle, the section of bending in rear portion is equipped with the through-hole, is equipped with the cable conductor in the through-hole, start button passes through the cable conductor and is connected with the power.
The beneficial effects of the invention are as follows: 1) The working head carrier of the working head assembly is provided with a boss at the side of the movable tool bit, and the boss is provided with an adjusting and limiting bolt, so that the clamping and limiting effects of reinforcing steel bars with different diameters can be realized, and the stability of the tool bit during cutting of the reinforcing steel bars is facilitated; the lower part of the working head carrier is provided with a groove, so that the purpose of light weight of the working head carrier is realized; the guard board is arranged on the static cutter head, so that the guard board can prevent the sheared reinforcing steel bars from splashing and hurting personnel when the reinforcing steel bars are sheared.
2) A flat key is arranged on the piston rod, a bolt hole is formed in the middle of the flat key, the flat key is fixed in a flat key groove of the piston rod by using an inner hexagon bolt, and when the flat key is assembled, the flat key can be just inserted into a corresponding guide groove of a working head, and the piston can be prevented from rotating in the circumferential direction during working.
3) The rear part of the hydraulic cylinder is provided with two small platforms, one of the platforms is provided with a one-way valve, and when the pressure in the driving oil cavity is too high when the piston rod is in forward execution, the oil pressure in the driving oil cavity is decompressed through the one-way valve so as to reach the normal oil pressure level; another purpose of the one-way valve is to realize slow decompression of oil pressure, namely, the oil pressure is not kept, the oil pressure of the device is instantaneously increased, so as to achieve the purpose of cutting off the reinforcing steel bars rapidly; the hydraulic cylinder is provided with an adjusting valve 38 on another platform, so that the maximum instantaneous oil pressure control can be realized.
4) The soft oil bag and the oil pan are integrally cast and formed, the soft oil bag is made of oil-resistant rubber and is made into a hollow hemispherical structure, the hemispherical oil bag is tightly adhered to the oil pan, and the oil bag and the oil pan integrated structure is screwed into an installation interface at the lower part of the shell through an oil pan nut. Under the action of vacuum suction force, the original shrunken soft oil bag is fully expanded, so that oil is promoted to quickly flow into the oil pumping device assembly.
The quick breaker has the advantages of light structure, convenient operation, safety, reliability, long service life, quick execution, low working noise and good ergonomics.
Drawings
FIG. 1 is a schematic view of an assembled structure of the present invention;
FIG. 2 is an exploded view of the overall structure of the present invention;
FIG. 3 is a schematic view of a three-dimensional structure of a work head assembly according to the present invention;
FIG. 4 is a schematic view of a three-dimensional structure of a piston spring assembly according to the present invention;
FIG. 5 is a schematic end view of a piston spring assembly of the present invention;
FIG. 6 is a schematic diagram of the front structure of a piston spring assembly of the present invention;
FIG. 7 is a schematic view of a small piston structure according to the present invention;
FIG. 8 is a schematic diagram of an end face configuration of a hydraulic cylinder assembly according to the present invention;
FIG. 9 is a schematic view of a three-dimensional structure of a hydraulic cylinder assembly according to the present invention;
FIG. 10 is a schematic diagram of a regulator valve according to the present invention;
FIG. 11 is a schematic view of the structure of the check valve of the present invention;
FIG. 12 is a schematic view of an oil pumping apparatus assembly according to the present invention;
FIG. 13 shows a plunger support block structure according to the present invention;
FIG. 14 is a schematic view of a housing structure according to the present invention;
FIG. 15 is a schematic view of the handle-integrated hood structure of the present invention;
in the figure: 1-working head assembly, 10-semi-cylindrical groove, 11-static tool bit, 12-dynamic tool bit, 13-static tool bit bolt, 14-guard plate, 15-boss, 16-adjusting limit bolt, 17-working head screw thread, 18-working head carrier, 2-piston spring assembly, 21-piston head, 22-piston rod, 23-return spring, 24-small piston, 2401-over-position protection spring, 2402-return spring, 2403-small piston head, 2404-small piston rod, 2405-lock nut, 25-piston seal ring, 26-special-shaped piston hole, 27-process hole I, 28-flat key, 29-working head seal ring, 3-hydraulic cylinder assembly, 30-oil return hole inlet, 31-pressure oil outlet, 32-hydraulic cylinder, 33-process hole II, 34-oil return hole, 35-check valve passage, 36-plunger bracket mounting hole, 37-regulating valve passage, 38-regulating valve, 3801-pressure limiting spring, 3802-conical valve core, 3803-regulating valve body, 39-check valve, 3901-steel ball, 3902-check valve body, 4-pumping unit assembly, 41-plunger bracket, 4101-needle bearing, 4102-filter screen, 4103-filter screen platen, 4105-oil inlet deep groove, 4106-oil pressure inlet, 4107-bolt hole, 4108-oil inlet hole, 42-flange, 43-DC brushless motor, 44-eccentric wheel shaft, 45-plunger, 4501-plunger cap, 4502-spring bracket, 4503-long plunger spring, 4504-small sleeve, 4505-short plunger, 5-shell assembly, 51-shell, 5102-shell heat dissipation port, 5103-oil filler, 5101-heat dissipation rib plate, 52-oil pan, 5201-soft oil pocket, 5202-oil pan nut, 5104-flange connection pad, 6-handle integrated hood, 61-hood, 6101-heat dissipation grid, 6202-cable, 62-handle, 6201-start button.
Detailed Description
The invention is further described below with reference to the drawings.
As shown in fig. 1-15, a light steel bar quick breaker comprises a working head assembly 1, a piston spring assembly 2, a hydraulic cylinder assembly 3, an oil pumping device assembly 4, a shell assembly 5 and a handle integrated hood 6.
The working head assembly 1 comprises a semicircular column groove 10, a static cutter head 11, a movable cutter head 12, a static cutter head bolt 13, a guard plate 14, a boss 15, an adjusting limit bolt 16, working head threads 17 and a working head carrier 18. The lower part of the working head carrier 18 is provided with a groove, the groove is positioned at the right end part of the working head, the light weight of the working head carrier is realized, the movable tool bit side of the working head carrier is provided with a boss 15, and the boss 15 is provided with an adjusting and limiting bolt 16, so that the function of the adjusting and limiting bolt 16 is that the clamping and limiting functions of reinforcing steel bars with different diameters can be realized, and the stability of the tool bit is facilitated when the reinforcing steel bars are sheared. A further important feature of the work head carrier 18 is that it is asymmetrical on the left and right sides, with one side being formed by a straight face connected to a bevel, the angle between the bevel and the straight face being 164.5 ° obtuse, and the other side being of straight face construction; for loading and unloading the steel bars, a U-shaped notch is also formed on the working head carrier 18, and the steel bars are placed in the U-shaped notch when the steel bars are sheared; further, a semicircular column groove 10 is formed in the working head carrier 18 at a position close to the upper position of the outlet of the movable cutter head 12, so that the movable cutter head 12 can be conveniently installed and detached; the guard plate 14 and the static cutter head 11 are fixed on the working head carrier 18 through an inner hexagon bolt (also called as a static cutter head bolt) at the position of the static cutter head 11 of the working head carrier 18, the guard plate 14 is larger than the static cutter head 11 in size in the thickness direction of the static cutter head 11, and the guard plate can prevent the sheared steel bars from splashing and hurting personnel when shearing the steel bars; for the movable cutter head 12, the movable cutter head 12 is also arranged at the head part of the piston rod 22 through an inner hexagon bolt (also called as a movable cutter blade bolt), the head part of the piston rod 22 is provided with a sheet structure, and a middle bolt hole is formed and is just matched with the movable cutter head 12; the working head assembly 1 is connected with the hydraulic cylinder 32 through the working head screw thread 17, an O-shaped sealing ring is sleeved at the lower part of the working head screw thread 17 to prevent oil leakage of the hydraulic cylinder, and a locking screw hole is formed in the middle part of the working head screw thread 17 in the assembled state, so that the working head assembly is limited in the hydraulic cylinder 32 through a small screw to prevent the working head assembly 1 from loosening in the operation. The movable cutter head 12 and the static cutter head 11 are both sheet-shaped blades, the cutting edges of the two cutter heads are just tangential in a closed state, and the blades are made of alloy steel or high-speed steel; regarding the working head part, the beneficial effects of the invention are: the movable cutter head and the static cutter head are reasonable in structure, firm, stable and convenient to replace, and the static cutter head is provided with a holding mechanism, so that the use is convenient.
The piston spring assembly 2 comprises a piston head 21, a piston rod 22, a return spring 23, a small piston 24, an over-position protection spring 2401, a return spring 2402, a small piston head 2403, a small piston rod 2404, a lock nut 2405, a piston sealing ring 25, a special-shaped piston hole 26, a process hole I27, a flat key 28 and a working head sealing ring 29. The piston head 21 is of a flat cake-shaped structure, the foremost end of the piston head 21 is provided with an annular channel, and a U-shaped sealing ring (also called as a piston sealing ring) is arranged on the annular channel; the plane of the piston head 21 is provided with a special-shaped piston hole 26, a small piston 24 is arranged, the main body part of the small piston 24 is also composed of a small piston head 2403 and a small piston rod 2404, the small piston rod 2404 is a stepped cylinder, the head part of the small piston rod 2404 is thinner, the bottom part of the small piston rod 2404 is thicker, an outer channel is arranged near the thick and thin dividing point of the small piston rod 2404, a small clamp is assembled in the small piston rod, a lock nut 2405 is limited to prevent the lock nut 2405 from sliding towards the thinner rod part, a return spring 2402 is sleeved at the lower part of the lock nut 2405, an over-position protection spring 2401 is sleeved at the upper part of the lock nut 2402, and the rigidity and the size of the return spring 2401 are larger than those of the over-position protection spring 2401; two opposite positions of the special-shaped piston hole 26 are respectively provided with a sharp mouth-shaped notch, when the device is in an initial state, the special-shaped piston hole 26 is just covered and closed by the small piston head 2403, oil cannot flow between the cavities on two sides of the piston head 21 through the special-shaped piston hole 26, when the piston head 21 moves forward to a limit position under the action of oil pressure, at the moment, the excessive protection spring 2401 on the top of the small piston rod 2404 contacts with the working head assembly 1 to limit the small piston 24 to move forward, at the moment, the small piston 24 moves reversely, the special-shaped piston hole 26 is opened, the oil pressure is released, the oil flows between the cavities on two sides of the piston head 21, and the oil directly flows back. The piston rod 22 is provided with a flat key groove, the piston rod is provided with a flat key 28, the middle part of the flat key 28 is provided with a bolt hole, the flat key 28 is fixed in the flat key groove of the piston rod by using an inner hexagonal bolt, and when the flat key 28 is assembled, the flat key 28 can be just inserted into a corresponding guide groove of the working head 1, and the piston can be prevented from rotating circumferentially during working; the head of the piston rod 22 is provided with a movable cutter head threaded hole, the head of the piston rod 22 is processed into an L-shaped structure, and the movable cutter head 12 is fixed on the head of the piston rod 22 through an inner hexagon bolt; the front part of the piston rod 22 and the assembling position of the working head assembly 1 are also provided with another U-shaped sealing ring to prevent oil from leaking outwards.
The hydraulic cylinder assembly 3, the oil return hole inlet 30, the pressure oil outlet 31, the hydraulic cylinder 32, the process hole II33, the oil return hole 34, the check valve channel 35, the plunger bracket mounting hole 36, the regulating valve channel 37, the regulating valve 38, the pressure limiting spring 3801, the conical valve core 3802, the regulating valve body 3803, the check valve 39, the steel ball 3901 and the check valve body 3902. The hydraulic cylinder 32 is of a cylindrical structure, a locking screw hole is formed in the front of the hydraulic cylinder 32, two small platforms are arranged at the rear of the hydraulic cylinder 32, a one-way valve 39 (also called a pressure relief valve) is formed on one of the small platforms, and a steel ball 3901 is arranged in the one-way valve, so that when the pressure in a driving oil cavity is too high when the piston rod 22 is in forward execution, the oil pressure in the driving oil cavity is relieved through the one-way valve 39, and the normal oil pressure level is achieved; another purpose of the check valve 39 is to achieve a slow release of the oil pressure, i.e. the oil pressure is not maintained, and the oil pressure of the device is momentarily raised for the purpose of rapidly cutting off the bars. The hydraulic cylinder 32 is provided with the regulating valve 38 on another platform, so that the maximum instantaneous oil pressure control is mainly realized, different pressing forces are given to the pressure limiting spring 3801 of the regulating valve 38 by regulating the screwing degree of the regulating valve nut, so as to reach different maximum instantaneous oil pressure levels, and when the oil pressure in the driving oil cavity of the hydraulic cylinder 32 is larger than the pressing force of the pressure limiting spring 3801 of the regulating valve 38, the conical valve core 3802 of the regulating valve 38 is jacked up, and the corresponding oil pressure is released, so that the normal oil pressure level is reached. The side plane of the hydraulic cylinder 32 is provided with a plurality of oil holes, which mainly comprise a pressure oil outlet 31, an oil return hole 34, a one-way valve passage port 35 and a regulating valve passage port 37; the side plane of the hydraulic cylinder 32 is also provided with a plurality of mounting holes or process holes, which mainly comprise a hydraulic cylinder mounting hole, a plunger bracket mounting hole 36 and a process hole II33; the pressure oil outlets 31 have three pairs of holes in total, each pair of holes are closely adjacent, a shallower U-shaped counter bore is arranged on the hole of each pair of pressure oil outlets 31, a sealing ring is arranged on the hole, and one pair of pressure oil outlets 31 and the other pair of pressure oil outlets 31 form 120 degrees in the same circumferential direction, so that the three pairs of pressure outlets 31 in the circumferential direction are uniformly distributed at 120 degrees; the corresponding plunger support block mounting holes 36 are also provided with three pairs, the three pairs of plunger support block mounting holes 36 and the three pairs of pressure oil outlets 31 in the circumferential direction are just staggered and evenly distributed at 120 degrees in the circumferential direction, and the diameter of the circumference of the plunger support block mounting hole 36 is smaller than that of the circumference of the pressure oil outlet 31; in addition, a ball bearing is arranged at the most middle part of the side of the hydraulic cylinder 32, and it is noted that an oil return hole inlet 30 is arranged on the cylindrical surface of the inner side of the cylinder body of the hydraulic cylinder 32, and the oil return hole inlet 30 on the cylindrical surface is just positioned at the positive limit position of the piston head 21; the front of the hydraulic cylinder 32 is provided with a shallow recess on which the sheath and the color cover strip thereon are mounted as warning prompts and model parameter instructions, which can reduce the accidental injury to the user.
The oil pumping device assembly 4 includes a plunger support block 41, a needle bearing 4101, a filter screen 4102, a filter screen pressing plate 4103, an oil inlet deep groove 4105, an oil pressure inlet 4106, a bolt hole 4107, an oil inlet 4108, a flange 42, a dc brushless motor 43, an eccentric wheel shaft 44, a plunger 45, a plunger cap 4501, a spring support 4502, a long plunger spring 4503, a small sleeve 4504, and a short plunger 4505. The shaft end of the direct current brushless motor 43 is connected with the flange plate 42 through bolts, four bolt holes are formed in the position, close to the outer edge, of the flange plate 42, the flange plate 42 and the direct current brushless motor 43 are fixed on the plunger support block 41 through four bolts, six bolt holes are formed in the plunger support block 41, and the plunger support block 41 is fixed on a corresponding plane of the oil pumping side of the hydraulic cylinder 32 through six long bolts. The middle of the brushless DC motor 43 is a shaft, the part extending out of the motor is composed of an eccentric wheel shaft 44, the eccentric wheel shaft 44 is provided with a plurality of cylindrical steps, when in an assembled state, the eccentric wheel shaft 44 just extends into a needle bearing 4101 at the center of the plunger support 41, the needle bearing 4101 is contacted with three evenly distributed plungers 45, the three plungers 45 are arranged in corresponding holes of the plunger support 41, and further, the plunger cap 4501 is in interference fit with the corresponding holes of the plunger support 41. The plunger support block 41 is of a porous block-shaped tripod structure, a narrow oil inlet deep groove 4105 is cut on each foot of the plunger support block 41, and in the working state, pressure oil flows through the oil inlet deep groove 4105 to reach the position of the plunger 45. The plunger 45 is composed of a plurality of parts and mainly comprises a plunger barrel 4504, a long plunger spring, a spring support 4502, a short plunger spring, a plunger sealing ring, a plunger cap 4501 and the like, wherein corresponding holes in the plunger cap 4501 and the plunger support block 41 are in interference fit, an O-shaped sealing ring is assembled on an outer channel in the middle of the plunger cap 4501, a spring support 4502 is arranged between the plunger cap 4501 and the plunger barrel 4504, the upper part and the lower part of the spring support 4502 correspondingly abut against the short plunger spring 4505 and the long plunger spring 4503, further indicates that the plunger barrel 4504 can slide in a plunger hole, and as the plunger barrel 4504 is in contact with a needle bearing 4101, the needle bearing 4101 is arranged on an eccentric axle 44, when the eccentric axle 44 rotates, the plunger barrel 4504 is driven to reciprocate, and the plunger 45 continuously passes through a long and narrow oil inlet deep groove 4105 to continuously pump oil to the side of the hydraulic cylinder 32. To prevent the needle bearing 4101 from coming out of the mounting hole of the plunger holder 41 and to prevent the end face of the needle bearing 4101 from wearing, a sliding washer and a clip are mounted on the needle bearing 4101 side. Further, an oil inlet 4108 is provided between the three legs of the plunger support 41, and an L-shaped filter is covered on the oil inlet, and is pressed on the plunger support by a filter pressing plate and a long bolt.
The housing assembly 5 includes a housing assembly 5, a housing 51, a housing heat sink 5102, a fuel filler 5103, heat dissipating ribs 5101, an oil pan 52, a soft oil pocket 5201, an oil pan nut 5202, and a flange plate 5104. An oil pan nut 5202 is arranged below the oil pan 52, a soft oil pocket 5201 is arranged on the oil pan 52, the soft oil pocket 5201 and the oil pan 52 are integrally cast and molded, the soft oil pocket 5201 is made of oil-resistant rubber into a hollow hemispherical structure, the hemispherical oil pocket is tightly adhered to the oil pan 51, and the integral structure of the oil pocket and the oil pan 51 is screwed into an installation interface at the lower part of the shell 51 through the oil pan nut 5202. Under the action of vacuum suction, the soft oil pocket 5201 which is originally shrunken is fully expanded, so that oil is promoted to quickly flow into the oil pumping device assembly 4. The shell 51 is made of aluminum, the shell 51 is generally made by adopting a casting process, in order to enable the direct current brushless motor 43 to dissipate heat faster and better, a shell heat dissipation port 5102 is formed in the shell 51 close to a motor power output end, heat is accumulated under the condition that oil continuously runs on the eccentric wheel shaft 44, the plunger 45 and other parts, and in order to enable the oil heat to dissipate better and faster to achieve balance, a plurality of heat dissipation rib plates 5101 are arranged on the shell, and the heat dissipation area is increased. In order to fix the housing 51, flange plates 5104 are provided at the front and rear ends of the housing 51, and the housing 51 is fixed at the corresponding positions of the hydraulic cylinder 32 by four hexagon socket head cap bolts; the housing 51 is fixed to the handle-integrated hood 6 by four long bolts and copper shims.
The handle-integrated hood 6 includes a handle-integrated hood 6, a hood 61, a heat radiation grille 6101, a cable 6202, a handle 62, and a start button 6201. The handle 62 and the hood 61 are integrally formed, in order to install the handle-integrated hood, two bolt holes are formed in the arc cylindrical surface at the lower end of the bending section of the handle 62, four bolt holes are formed in the flange surface of the hood 61, in the installation state, the arc cylindrical surface at the lower end of the bending section of the handle 62 is fixed in the two bolt holes of the hydraulic cylinder 32 through two bolts, and the hood 61 is fixed on the housing 51 through four long bolts. In order to more firmly fix the housing 61, the flange of the housing 61 is thicker, and a plurality of heat dissipating grids 6101 are provided at the rear end of the housing 61, from which heat generated when the brushless dc motor 43 operates is dissipated. In order to facilitate control of the brushless DC motor 43, a start button 6201 is arranged at the front part of the shaking position of the handle 62, a cable conductor 6202 of the brushless DC motor 43 extends out from the rear bending section of the handle 62, and a power supply is inserted through a cable plug to supply electric energy to the brushless DC motor 43; the direct current brushless motor 43 is connected with the oil pumping device assembly 4 through a coupler, and when the direct current brushless motor 43 rotates, the hydraulic oil pumping device assembly 4 is driven to generate hydraulic fluid with the pressure of 70-90MPa, the piston rod 22 is driven to move forward, and when the piston rod 22 drives the cutter head 12 to move forward, a cut object is cut off.
Although the invention has been described with reference to the preferred embodiments, it should be understood that the invention is not limited thereto, but rather may be modified and varied by those skilled in the art without departing from the spirit and scope of the invention.
Claims (7)
1. The light steel bar quick breaker is characterized by comprising a shell assembly (5), a hydraulic cylinder assembly (3) fixedly arranged at one end of the shell assembly (5), a handle integrated hood (6) fixedly arranged at the other end of the shell assembly (5) and a working head assembly (1) arranged at the end part of the hydraulic cylinder assembly (3), wherein a piston spring assembly (2) is arranged between the working head assembly (1) and the inside of the hydraulic cylinder assembly (3), and an oil pumping device assembly (4) is arranged between the hydraulic cylinder assembly (3) and the inside of the shell assembly (5); the working head assembly (1) comprises a working head carrier (18), a movable tool bit (12) and a static tool bit (11) which are arranged on the working head carrier (18); the piston spring assembly (2) comprises a piston head (21) and a piston rod (22), a movable cutter head threaded hole is formed in the head of the piston rod (22), and the movable cutter head (12) is fixed in the movable cutter head threaded hole through an inner hexagon bolt; the shell assembly (5) comprises a shell (51) and an oil pan (52) fixedly connected with the shell (51); the hydraulic cylinder assembly (3) comprises a hydraulic cylinder (32), and a group of pressure oil outlets (31) are formed in the plane of the end part of the hydraulic cylinder (32); the oil pumping device assembly (4) comprises a direct current brushless motor (43), an eccentric shaft (44) arranged on the direct current brushless motor (43), a plunger support block (41) arranged at the end part of the eccentric shaft (44) and a group of plungers (45) arranged on the plunger support block (41), wherein a group of oil inlet deep grooves (4105) are formed in the plunger support block (41), a pressure oil inlet (4106) is formed in a position close to the oil inlet deep grooves (4105), a needle bearing (4101) is arranged in the plunger support block (41), the eccentric shaft (44) is matched and arranged in the needle bearing (4101), and under the driving of the direct current brushless motor (43), the eccentric shaft (44) is sequentially in extrusion contact with the plungers (45), so that pressure oil in an oil pan (52) enters the pressure oil inlet (4106) from the oil inlet deep grooves (4105) and then enters the hydraulic cylinder (32) through the pressure oil outlet (31), and a piston rod (22) pushes a cutter head (12) to perform shearing work;
the piston head (21) adopts a flat cake-shaped structure, an annular channel is formed at one end of the piston head (21), and a piston sealing ring is arranged in the annular channel; the head of the piston rod (22) adopts an L-shaped structure, a reset spring (23) is sleeved on the piston rod (22), a flat key groove is formed in the piston rod (22), a flat key (28) is arranged in the flat key groove, a bolt hole is formed in the middle of the flat key (28), the flat key (28) is fixed in the flat key groove of the piston rod (22) through an inner hexagon bolt, and the flat key (28) is inserted into a guide groove of the working head assembly (1); a working head sealing ring is arranged at the assembling position of the front part of the piston rod (22) and the working head assembly (1);
the piston comprises a piston head (21), a piston rod (2404) and a piston rod (2403), wherein the surface of the piston head (21) is provided with a special-shaped piston hole (26), two opposite positions on the special-shaped piston hole (26) are respectively provided with a sharp mouth-shaped notch, a small piston (24) is arranged in the special-shaped piston hole (26), the small piston (24) comprises a small piston head (2403) and a small piston rod (2404), the small piston rod (2404) adopts a stepped cylinder structure, the head is thinner, the bottom is thicker, an outer channel is formed at the position close to the thick and thin boundary point of the small piston rod (2404), and a small clamp is arranged in the outer channel; a lock nut (2405) is arranged on the small piston rod (2404), a return spring (2402) is sleeved at the rear part of the lock nut (2405), and an over-position protection spring (2401) is sleeved at the front part of the lock nut;
the rear part of the hydraulic cylinder (32) is provided with two small platforms, one of the platforms is provided with a one-way valve (39), the other platform is provided with a regulating valve (38), and the one-way valve (39) comprises a one-way valve body (3902) and a steel ball (3901) arranged at the front end of the one-way valve body (3902); the regulating valve (38) comprises a regulating valve body (3803), a conical valve core (3802) arranged at the front end of the regulating valve body (3803), and a pressure limiting spring (3801) arranged between the regulating valve body (3803) and the conical valve core (3802); an oil return hole (34), a one-way valve channel hole (35) communicated with a one-way valve (39) and a regulating valve channel hole (37) communicated with a regulating valve (38) are formed in the end plane of the hydraulic cylinder (32).
2. The light reinforcement bar quick breaker according to claim 1, characterized in that the working head carrier (18) is provided with a U-shaped notch for placing reinforcement bars at a position between the movable cutter head (12) and the static cutter head (11); one side of the working head carrier (18) is formed by connecting a straight surface structure with an inclined surface structure, the other side of the working head carrier is formed by connecting a straight surface structure, the tail end of the working head carrier (18) is provided with a working head thread (17), and an O-shaped sealing ring is sleeved at the lower part of the working head thread (17); the working head screw thread (17) is provided with a locking screw hole, and the working head assembly (1) is limited in the hydraulic cylinder (32) through a screw; a boss (15) is arranged on one side of the movable cutter head on the working head carrier (18), and an adjusting and limiting bolt (16) for clamping and limiting reinforcing steel bars with different diameters is arranged on the boss (15); the lower part of the working head carrier (18) is provided with a groove for reducing weight; a semicircular column groove (10) which is convenient for installing and detaching the movable cutter head (12) is formed in the working head carrier (18) above the position close to the movable cutter head (12); a guard board (14) is arranged on the static cutter head (11); the movable cutter head (12) and the static cutter head (11) are respectively sheet-shaped blades, the cutting edges of the two cutter heads are just tangential in a closed state, and the cutter blades are made of alloy steel.
3. The light steel bar quick breaker according to claim 1, wherein the hydraulic cylinder (32) adopts a cylindrical structure, a locking screw hole is formed in the front part of the hydraulic cylinder (32), and a hydraulic cylinder mounting hole and a plunger support block mounting hole (36) are formed in the end plane of the hydraulic cylinder (32); the pressure oil outlets (31) are provided with three pairs, each pair of the pressure oil outlets (31) are closely adjacent to each other, a U-shaped counter bore is arranged at each pair of the pressure oil outlets (31), a sealing ring is arranged on each U-shaped counter bore, the three pairs of the pressure oil outlets (31) are all arranged on the same circumference, and an included angle between every two adjacent pairs of the pressure oil outlets is 120 degrees; three pairs of plunger support block mounting holes (36) are also arranged, the plunger support block mounting holes (36) and the pressure oil outlet (31) are distributed in a staggered manner in the circumferential direction, and the included angle between adjacent plunger support block mounting holes (36) in the circumferential direction is 120 degrees; the diameter of the circumference of the plunger support block mounting hole (36) is smaller than that of the circumference of the pressure oil outlet (31); the ball bearing is arranged at the middle position of the end part of the hydraulic cylinder (32), an oil return hole inlet (30) is formed in the position, located at the positive limit position of the piston, of the inner wall of the hydraulic cylinder (32), a shallow groove is formed in the front part of the hydraulic cylinder (32), and a sheath and a color covering strip are arranged on the shallow groove.
4. The light steel bar quick breaker according to claim 1, wherein a flange plate (42) is arranged at the shaft end of the direct current brushless motor (43), bolt holes are formed in the position, close to the outer edge, of the flange plate (42), the flange plate (42) and the direct current brushless motor (43) are fixed on a plunger support block (41) through bolts, long bolt holes are formed in the plunger support block (41), the plunger support block (41) is fixed on a hydraulic cylinder (32) through long bolts, the plunger support block (41) adopts a porous block-shaped tripod structure, oil inlet deep grooves (4105) are formed in each foot of the plunger support block (41), oil inlet holes (4108) are formed in the three feet of the plunger support block (41), a filter screen (4102) is arranged on the oil inlet holes (4108), a filter screen pressing plate (4103) is arranged on the filter screen (4102), and the filter screen is pressed on the plunger support block (41) through the filter screen pressing plate (4103) and the long bolts.
5. The light steel bar quick breaker according to claim 1, wherein the plunger (45) comprises a plunger cylinder (4504), a short plunger spring (4505), a long plunger spring (4503) and a plunger cap (4501), the plunger cap (4501) is in interference fit with a corresponding hole in the plunger support block (41), an outer groove is formed in the middle of the plunger cap (4501), a plunger seal ring is arranged in the outer groove, and a spring support (4502) is arranged between the plunger cap (4501) and the plunger cylinder (4504); the upper part and the lower part of the spring support (4502) correspondingly abut against the short plunger spring (4505) and the long plunger spring (4503), and a gasket and a clamp are arranged on one side of the needle bearing (4101).
6. The light reinforcement quick breaker according to claim 1, wherein a soft oil pocket (5201) is arranged on the oil pan (52), the oil pan (52) and the soft oil pocket (5201) are integrally formed, the soft oil pocket (5201) is made of oil-resistant rubber into a hollow hemispherical structure, an oil pan nut (5202) is arranged below the oil pan (52), and the oil pan (52) is fixedly connected with the shell (51) through the oil pan nut (5202); the shell (51) is made of aluminum, a group of heat dissipation rib plates (5101) are arranged on the shell (51), a shell heat dissipation opening (5102) is formed in the position, close to the motor, of the shell (51), flange connection plates (5104) are arranged at the front end and the rear end of the shell (51), and the shell (51) is fixedly connected with the hydraulic cylinder assembly (3) and the handle integrated hood (6) through the flange connection plates (5104) respectively.
7. The light reinforcement quick breaker according to claim 1, characterized in that the handle integrated hood (6) comprises a handle (62) and a hood (61), the handle (62) and the hood (61) are integrally formed, bolt holes are formed in the arc cylindrical surface at the lower end of the bending section of the handle (62), the arc cylindrical surface at the lower end of the bending section of the handle (62) is fixed on the hydraulic cylinder assembly (3) through bolts, long bolt holes are formed in the flange surface of the hood (61), the hood (61) is fixed on the shell through the long bolts, a group of heat dissipation grids (6101) are arranged at the rear end of the hood (61), a start button (6201) is arranged at the front part of the handle (62), a hollow structure is adopted inside the handle (62), a through hole is formed in the rear bending section, a cable wire (6202) is arranged in the through hole, and the start button (6201) is connected with a power supply through the cable wire (6202).
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| CN201710680129.5A CN107497970B (en) | 2017-08-10 | 2017-08-10 | Light steel bar quick breaker |
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| CN201710680129.5A CN107497970B (en) | 2017-08-10 | 2017-08-10 | Light steel bar quick breaker |
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| CN108105060A (en) * | 2018-01-10 | 2018-06-01 | 浙江工业大学 | A kind of squeezer of integrated high pressure plunger-type fuel pump driving |
| CN109026862B (en) * | 2018-09-11 | 2023-08-08 | 欧盾科技有限公司 | Pressure-adjustable bending machine |
| CN111421082A (en) * | 2020-03-19 | 2020-07-17 | 青建国际集团有限公司 | Reinforcing bar cutting equipment with reinforcing bar locate function |
| CN117696760B (en) * | 2024-02-18 | 2024-04-23 | 常州斯比达自动化设备有限公司 | Numerical control plunger assembly closing-in device |
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| TW201302355A (en) * | 2010-12-27 | 2013-01-16 | Lobtex Co Ltd | Actuator |
| CN202023793U (en) * | 2011-04-29 | 2011-11-02 | 天津优瑞纳斯液压机械有限公司 | Ultra-long stroke hydraulic cylinder buffering device |
| CN204276751U (en) * | 2014-11-24 | 2015-04-22 | 温州杰拓机电有限公司 | High-performance rebar cutting machine |
| CN204276750U (en) * | 2014-11-24 | 2015-04-22 | 温州杰拓机电有限公司 | The bar cropper that oil transportation is stable |
| CN207402034U (en) * | 2017-08-10 | 2018-05-25 | 浙江工业大学 | A kind of light-duty steel bar quick breaker |
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| CN107497970A (en) | 2017-12-22 |
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