CN102825173B - Reinforcing steel bar shearing machine - Google Patents
Reinforcing steel bar shearing machine Download PDFInfo
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- CN102825173B CN102825173B CN201110163439.2A CN201110163439A CN102825173B CN 102825173 B CN102825173 B CN 102825173B CN 201110163439 A CN201110163439 A CN 201110163439A CN 102825173 B CN102825173 B CN 102825173B
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Abstract
The invention relates to a shearing machine, and in particular relates to a reinforcing steel bar shearing machine which comprises a bottom frame (8) and a protective cover (9), wherein the bottom frame (8) is sequentially provided with a base knife rest (1), a hydraulic cylinder (2), a distribution valve (5), a gear pump (7), an oil tank (3), a connecting rod control system (4) and a motor (6) which are arranged in the protective cover (9); the base knife rest (1) is connected with the hydraulic cylinder (2); the bottom end of the hydraulic cylinder (2) is articulated with the bottom frame (8); the connecting rod control system (4) is connected with the distribution valve (5); the distribution valve (5) is communicated with the oil tank (3) by the gear pump (7); the distribution valve (5) is connected with the hydraulic cylinder (2); the top of the oil tank (3) is fixedly connected with the motor (6); and the motor (6) is connected with the gear pump (7) by a coupler (11). The device replaces a mechanical driving mechanism in the prior art by a hydraulic system, and the hydraulic system can efficiently and stably control the shearing action of a main oil cylinder.
Description
Technical field
The present invention relates to a kind of cutter, relate in particular to a kind of cutter of reinforcing bar.
Background technology
The bar cropper product at home and abroad market demand is large.The producer of domestic production like product is numerous, and is forming seriation and scale gradually.Be simultaneously some supporting standard parts and components of cutting machine as accessories such as blade, gear, connecting rods, progressively moving towards professional production, some professional enterprises progressively rise.Bar cropper, existing domestic and international producer is numerous, and most of structure is gear type transmission; This type of cutting machine complex structure, cost is high, gear mechanism requirement of strength is high.
Steel reinforcement shearing production line need to dispose bar cutter at present.Prior art is provided with the mechanical driving mechanism that blade is moved up and down on bar cutter, the structure of this driving mechanism is: the eccentric bushing and the connecting rod that drive blade to move up and down are arranged on power transmission shaft one side, the flywheel that clutch and empty set dress are fixedly housed on this power transmission shaft opposite side, this flywheel is connected with motor reducer by driving-chain.Generally, motor reducer flywheel driven dallies continuously, when reinforcing bar need to be sheared, clutch contacts the flywheel of idle running by friction plate, drive again drive to rotate, power transmission shaft rotates and drives eccentric bushing and connecting rod to rotate, and the blade being fixed on eccentric bushing and connecting rod is made the next shear action circulating thereupon, completes the cutting to length of reinforcing bar.
On above-mentioned prior art bar cutter there is following shortcoming in moving blade driving mechanism: the long-term continuous operation loss of motor no-load power; Friction clutch friction plate is easy to wear, changes inconvenient; Clutch easily skids and vexed car, affects shear efficiency.
Summary of the invention
Technique effect of the present invention can overcome above-mentioned defect, and a kind of bar cutter is provided, and it can be realized efficiently, stablizes, reliable shear reinforcement.
For achieving the above object, the present invention adopts following technical scheme: it comprises underframe, guard shield, on underframe, be provided with successively the base knife rest, hydraulic cylinder, distributing valve, gear pump, fuel tank, connecting rod control system, the motor that are placed in guard shield, base knife rest is connected with hydraulic cylinder, bottom and the underframe of hydraulic cylinder are hinged, connecting rod control system is connected with distributing valve, distributing valve is communicated with fuel tank by gear pump, distributing valve is connected with hydraulic cylinder, the top of fuel tank is fixedly connected with motor, and motor is connected with gear pump by shaft coupling.
Bar cropper of the present invention, take hydraulic-driven as power, by hydraulic cylinder flexible by transmission of power to base knife rest, then handle of a knife is done reciprocating rotation around fixing bearing pin within the scope of certain angle, realizes reinforcing bar shearing function; Machine is provided with continuous operation and one action control stick, can realize the function of once cutting off and cutting off continuously by manual control, has realized semi-automatic bar cropper.Fuel tank part: antiwear hydraulic oil is housed in fuel tank, and the motor that fuel tank is connected with top, gear pump form the Hydraulic Station of machine, are the power source of entire machine.Guard shield: transmission, control system are protected, prevent that dust, foreign material etc. from entering the work of EVAC, protects operating personnel's safety simultaneously.
Base knife rest comprises knife rest, holder, extension spring, connecting rod, cutting blade, fixed blade, rotating shaft, base, one end of knife rest is fixedly connected with hydraulic cylinder, the other end is provided with cutting blade, be provided with fixed blade relative to cutting blade, cutting blade and fixed blade staggered floor arrange, fixed blade is arranged on base, and knife rest is connected with holder by rotating shaft, and holder is fixedly installed on underframe; Knife rest is connected with underframe by extension spring.Blade adopts square structure, by steel alloy, is forged and is formed, and through strict heat treatment, case hardness reaches 55HRC.Square blade structure, can exchange by 8 seamed edges after wearing and tearing, makes full use of blade, saving resource.Base knife rest part: the base support section of entire machine is also the working portion of cutting off reinforcing bar simultaneously.Cutting blade and fixed blade are used in conjunction with, and reach the object of shear reinforcement.Single-action hydraulic cylinder, is the executive component in hydraulic system, hydraulic coupling is directly passed to knife rest realization and cuts off reinforcing bar.Its operation principle is to utilize lever principle, by Hydraulic Power Transmission System, drives cutter to do reciprocating around a fixed pivot.Whole control system is pure frame for movement, by control link mechanism, to the lifting and decline of hydraulic valve stem, realizes the reciprocating action of oil cylinder, and this mechanism reliability is high, and design is dexterous, and action precisely.
Distributing valve comprises selector valve body, is provided with valve stem passage in selector valve body, and valve rod is set in valve stem passage, and one end of valve rod is placed in the outside of selector valve body and is connected with connecting rod control system, and the other end is provided with piston; The two ends of valve stem passage are respectively equipped with oil inlet passage, oil discharge passage, and oil inlet passage is communicated with the oil-out of gear pump, and oil discharge passage is communicated with by oil inlet hose with hydraulic cylinder; The bottom of valve stem passage is provided with drainback passage, and drainback passage is communicated with fuel tank.The distributing valve structure of particular design, is connected with connecting rod control system, and the slit design by the middle of distributing valve, packs position-limit mechanism into, by the stopping and open of dead bolt, realizes continuous operation and an action job.
Distributing valve part: distributing valve is according to the operation of control system, the control to hydraulic cylinder oil-feed; In distributing valve, comprise voltage-regulating system, oil return system etc.The present invention, in order to guarantee hydraulic system automatic reverse rapidly, is provided with pressure regulator valve in casing, and the use of pressure regulator valve can also realize the gearshift of operating rate, the functions such as control of bar cutting.
Connecting rod control system comprises supporting seat, link assembly, rocking arm, and link assembly is arranged on supporting seat, and rocking arm is connected with supporting seat, link assembly respectively, and the side of supporting seat is provided with spring supporting bar, spring supporting bar linking springs.The startup that connecting rod control system is started working to hydraulic cylinder is controlled; Control link can be realized to hydraulic cylinder oil-feed and to the process of tank drainback control system.
Link assembly comprises connector, connector fixed connecting sleeve, and the top of sleeve pipe is provided with connecting rod, contiguous block, balancing weight successively, and the side of sleeve pipe is provided with support, and support is provided with limited block I, limited block II.
The end of connector is provided with groove, and groove is connected with valve rod.
Bar cropper noise is low, simple in structure, easy care; in reliable operation distributing valve mechanism, be designed with pressure protective device, when hypertonia, can automatic overflow; thereby protection oil cylinder and other mechanism, avoid destroying multi-stage sealed mechanism, nearly 8 places sealing mechanism design between gear pump and distributing valve; guarantee the sealing of hydraulic oil; the valve rod part that 15CrMo alloy is made, through strict heat treatment and grinding, has guaranteed that spool coordinates with the accurate of valve piece; make it enough wear-resisting, long-life design.
This device utilizes hydraulic system to substitute prior art mechanical driving mechanism, and hydraulic system energy efficient stable is controlled master cylinder shear action.This apparatus structure is simple, and stable working is saved energy consumption, and production efficiency is high.
Accompanying drawing explanation
Fig. 1 is appearance integral structural representation of the present invention;
Fig. 2 is that device removes structural representation inner after guard shield;
Fig. 3 is the top view of Fig. 2;
Fig. 4 is base cutter frame structure schematic diagram of the present invention;
Fig. 5 is the top view of Fig. 4;
Fig. 6 is distributing valve internal structure schematic diagram of the present invention;
Fig. 7 is connecting rod control system structural representation of the present invention;
Fig. 8 is link assembly structural representation of the present invention.
In figure: 1. base knife rest; 2. hydraulic cylinder; 3. fuel tank; 4. connecting rod control system; 5. distributing valve; 6. motor; 7. gear pump; 8. underframe; 9. guard shield; 10. oil inlet hose; 11. shaft couplings;
101. base; 102. knife rest; 103. extension spring; 104. connecting rod; 105. cutting blade; 106. fixed blade; 107. rotating shaft; 108. holder;
401. supporting seat; 402. rocking arm; 403. link assembly; 404. spring supporting bar;
4031. connector; 4032. groove; 4033. connecting rod; 4034. contiguous block; 4035. balancing weight; 4036. joint sleeve; 4037. support; 4038. limited block I; 4039. limited block II;
501. selector valve body; 502. valve stem passage; 503. valve rod; 504. piston; 505. oil inlet passage; 506. oil discharge passage; 507. drainback passage.
The specific embodiment
Bar cropper of the present invention comprises underframe 8, guard shield 9, on underframe 8, be provided with successively the base knife rest 1, hydraulic cylinder 2, distributing valve 5, gear pump 7, fuel tank 3, connecting rod control system 4, the motor 6 that are placed in guard shield 9, base knife rest 1 is connected with hydraulic cylinder 2, the bottom of hydraulic cylinder 2 and underframe 8 are hinged, connecting rod control system 4 is connected with distributing valve 5, distributing valve 5 is communicated with fuel tank 3 by gear pump 7, distributing valve 5 is connected with hydraulic cylinder 2, the top of fuel tank 3 is fixedly connected with motor 6, and motor 6 is connected with gear pump 7 by shaft coupling 11.
Base knife rest 1 comprises knife rest 102, holder 108, extension spring 103, connecting rod 104, cutting blade 105, fixed blade 106, rotating shaft 107, base 101, one end of knife rest 102 is fixedly connected with hydraulic cylinder 2, the other end is provided with cutting blade 105, be provided with fixed blade 106 relative to cutting blade 105, cutting blade 105 and fixed blade 106 staggered floor settings, fixed blade 106 is arranged on base 101, and knife rest 102 is connected with holder 108 by rotating shaft 107, and holder 108 is fixedly installed on underframe 8; Knife rest 102 is connected with underframe 8 by extension spring 103.
Distributing valve 5 comprises selector valve body 501, is provided with valve stem passage 502 in selector valve body 501, the interior valve rod 503 that arranges of valve stem passage 502, and one end of valve rod 503 is placed in the outside of selector valve body 501 and is connected with connecting rod control system 4, and the other end is provided with piston 504; The two ends of valve stem passage 502 are respectively equipped with oil inlet passage 505, oil discharge passage 506, and oil inlet passage 505 is communicated with the oil-out of gear pump 7, and oil discharge passage 506 is communicated with by oil inlet hose 10 with hydraulic cylinder 2; The bottom of valve stem passage 502 is provided with drainback passage 507, and drainback passage 507 is communicated with fuel tank 3.
Connecting rod control system 4 comprises supporting seat 401, link assembly 403, Rocker arm 4 02, link assembly 403 is arranged on supporting seat 401; Rocker arm 4 02 is connected with supporting seat 401, link assembly 403 respectively, and the side of supporting seat 401 is provided with spring supporting bar 404, spring supporting bar 404 linking springs.
Link assembly 403 comprises connector 4031, connector 4031 fixed connecting sleeves 4036, the top of sleeve pipe 4036 is provided with connecting rod 4033, contiguous block 4034, balancing weight 4035 successively, and the side of sleeve pipe 4036 is provided with support 4037, and support 4037 is provided with limited block I 4038, limited block II 4039.
The end of connector 4031 is provided with groove 4032, and groove 4032 is connected with valve rod 503.
During work, the reinforcing bar that needs are cut off is put between cutting blade 105 and fixed blade 106, and that by control link control system 4, carries out reinforcing bar cuts off action automatically.Connecting rod control system 4 is pressed onto valve rod 503 least significant end of valve stem passage 502, fuel tank 3 passes through gear pump 7, distributing valve 5 to the interior fuel feeding of hydraulic cylinder 2, increase along with fuel delivery, the piston rod of hydraulic cylinder 2 is jack-up up, 102 actions of band movable knife rack, knife rest 102 drives cutting blade 105 to fixed blade 106 direction extruding, thereby cuts off the reinforcing bar between cutting blade 105 and fixed blade 106.
When connecting rod control system 4 rises to most significant end by valve rod 503, the piston 504 of valve rod 503 is by oil inlet passage 505 shutoff, fuel tank 3 stops to hydraulic cylinder 2 fuel feeding, knife rest 102 back shrinks and resets under the effect of extension spring 103, oil flows back in fuel tank 3 by drainback passage 507, prepares the next action of cutting off reinforcing bar.
Claims (6)
1. a bar cutter, comprise underframe (8), guard shield (9), it is characterized in that, on underframe (8), be provided with successively the base knife rest (1) being placed in guard shield (9), hydraulic cylinder (2), distributing valve (5), gear pump (7), fuel tank (3), connecting rod control system (4), motor (6), base knife rest (1) is connected with hydraulic cylinder (2), the bottom of hydraulic cylinder (2) and underframe (8) are hinged, connecting rod control system (4) is connected with distributing valve (5), distributing valve (5) is communicated with fuel tank (3) by gear pump (7), distributing valve (5) is connected with hydraulic cylinder (2), the top of fuel tank (3) is fixedly connected with motor (6), motor (6) is connected with gear pump (7) by shaft coupling (11).
2. bar cutter according to claim 1, it is characterized in that, base knife rest (1) comprises knife rest (102), holder (108), extension spring (103), connecting rod (104), cutting blade (105), fixed blade (106), rotating shaft (107), base (101), one end of knife rest (102) is fixedly connected with hydraulic cylinder (2), the other end is provided with cutting blade (105), be provided with fixed blade (106) relative to cutting blade (105), cutting blade (105) and fixed blade (106) staggered floor setting, fixed blade (106) is arranged on base (101), knife rest (102) is connected with holder (108) by rotating shaft (107), holder (108) is fixedly installed on underframe (8), knife rest (102) is connected with underframe (8) by extension spring (103).
3. bar cutter according to claim 1, it is characterized in that, distributing valve (5) comprises selector valve body (501), in selector valve body (501), be provided with valve stem passage (502), valve rod (503) is set in valve stem passage (502), one end of valve rod (503) is placed in the outside of selector valve body (501) and is connected with connecting rod control system (4), and the other end is provided with piston (504); The two ends of valve stem passage (502) are respectively equipped with oil inlet passage (505), oil discharge passage (506), oil inlet passage (505) is communicated with the oil-out of gear pump (7), and oil discharge passage (506) is communicated with by oil inlet hose (10) with hydraulic cylinder (2); The bottom of valve stem passage (502) is provided with drainback passage (507), and drainback passage (507) is communicated with fuel tank (3).
4. according to the bar cutter described in claim 1 or 3, it is characterized in that, connecting rod control system (4) comprises supporting seat (401), link assembly (403), rocking arm (402), link assembly (403) is arranged on supporting seat (401); rocking arm (402) is connected with supporting seat (401), link assembly (403) respectively; the side of supporting seat (401) is provided with spring supporting bar (404), spring supporting bar (404) linking springs.
5. bar cutter according to claim 4, it is characterized in that, link assembly (403) comprises connector (4031), connector (4031) fixed connecting sleeve (4036), the top of sleeve pipe (4036) is provided with connecting rod (4033), contiguous block (4034), balancing weight (4035) successively, the side of sleeve pipe (4036) is provided with support (4037), and support (4037) is provided with limited block I (4038), limited block II (4039).
6. bar cutter according to claim 5, is characterized in that, the end of connector (4031) is provided with groove (4032), and groove (4032) is connected with valve rod (503).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110163439.2A CN102825173B (en) | 2011-06-17 | 2011-06-17 | Reinforcing steel bar shearing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110163439.2A CN102825173B (en) | 2011-06-17 | 2011-06-17 | Reinforcing steel bar shearing machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102825173A CN102825173A (en) | 2012-12-19 |
| CN102825173B true CN102825173B (en) | 2014-08-20 |
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ID=47328603
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110163439.2A Active CN102825173B (en) | 2011-06-17 | 2011-06-17 | Reinforcing steel bar shearing machine |
Country Status (1)
| Country | Link |
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| CN (1) | CN102825173B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106424473A (en) * | 2016-10-13 | 2017-02-22 | 宁波思科威传动科技有限公司 | Liquid-electricity combined reinforcement shearing machine |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1202947A (en) * | 1968-05-02 | 1970-08-19 | Hill & Gilbert Hydraulic Divis | Hydraulic shearing machine |
| JPH02280934A (en) * | 1989-04-19 | 1990-11-16 | Kandenko Co Ltd | Cutting device of aluminum wires of steel-cored aluminum cable |
| CN201832924U (en) * | 2010-08-11 | 2011-05-18 | 黄跃泽 | Automatic steel-bar straightening and cutting machine |
| CN201832933U (en) * | 2010-10-28 | 2011-05-18 | 天津市建科机械制造有限公司 | Reinforcing steel shearing mechanism with integral type fixed knife holder structure |
| CN202146960U (en) * | 2011-06-17 | 2012-02-22 | 青岛金石通机械有限公司 | Steel bar shearing machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CZ284016B6 (en) * | 1994-09-09 | 1998-07-15 | Stra Spol. S R.O. | Alligator shears |
-
2011
- 2011-06-17 CN CN201110163439.2A patent/CN102825173B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1202947A (en) * | 1968-05-02 | 1970-08-19 | Hill & Gilbert Hydraulic Divis | Hydraulic shearing machine |
| JPH02280934A (en) * | 1989-04-19 | 1990-11-16 | Kandenko Co Ltd | Cutting device of aluminum wires of steel-cored aluminum cable |
| CN201832924U (en) * | 2010-08-11 | 2011-05-18 | 黄跃泽 | Automatic steel-bar straightening and cutting machine |
| CN201832933U (en) * | 2010-10-28 | 2011-05-18 | 天津市建科机械制造有限公司 | Reinforcing steel shearing mechanism with integral type fixed knife holder structure |
| CN202146960U (en) * | 2011-06-17 | 2012-02-22 | 青岛金石通机械有限公司 | Steel bar shearing machine |
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| Publication number | Publication date |
|---|---|
| CN102825173A (en) | 2012-12-19 |
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