CN103737524B - Hydraulic spanner - Google Patents
Hydraulic spanner Download PDFInfo
- Publication number
- CN103737524B CN103737524B CN201310707686.3A CN201310707686A CN103737524B CN 103737524 B CN103737524 B CN 103737524B CN 201310707686 A CN201310707686 A CN 201310707686A CN 103737524 B CN103737524 B CN 103737524B
- Authority
- CN
- China
- Prior art keywords
- handle
- oil pressure
- slide bar
- hydraulic
- piston
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims description 10
- 239000000446 fuel Substances 0.000 claims description 6
- 238000005260 corrosion Methods 0.000 abstract description 10
- 230000007797 corrosion Effects 0.000 abstract description 10
- 239000003921 oil Substances 0.000 description 25
- 239000010720 hydraulic oil Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001934 delay Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
Abstract
The invention discloses a kind of hydraulic spanner, relate to bolt pair extracting tool technical field, comprise wrench body and handle, wrench body comprises jaw, body, slide bar piston and pressure handle, hydraulic cylinder is established in body, piston is located at hydraulic cylinder height oil pressure district, hydraulic cylinder low oil pressure district is provided with hydraulic valve, the hydraulic valve port of export is communicated with high oil pressure district, hydraulic valve is connected with slide bar piston, pressure handle respectively with body, slide bar piston hinge, the movable clamp port that can slide in jaw groove and piston are fixed, and body have the relief valve be communicated with high oil pressure district.By pressing pressure handle, hydraulic valve and slide bar piston coordinate Shi Gao oil pressure district oil pressure to raise, and driven plunger can by nut or nuts clamping, pressure handle pressure release is lifted after dismounting, unclamp jaw, cannot dismantle for common wrench, the bolt of serious corrosion, only can remove by fast dismantling by suitable moment.The present invention has structure advantage simple, easy to use, can reduce the labour intensity of operating personnel, increase work efficiency.
Description
Technical field
The present invention relates to bolt pair extracting tool technical field.
Background technology
At present, when known overhaul of the equipments, often run into that to be arranged on position narrow and coordinate the few position of surplus, because nut corrosion is serious, and the space not having the instrument such as hammer or spanner to launch, these nuts cannot be dismantled, make troubles to maintenance work.And in the equipment rebuilding, technology innovation project of power supply enterprise, frequent needs disconnect once lead-in wire and equipment Disintegration overhaul, because nut corrosion is serious, lose corner angle and rounded, common wrench exists can not snap in the minimum phenomenon of angle that nut maybe can rotate, and due to screw-thread rust, the nut of corrosion, bolt can not turn by common wrench at all.Traditional method is sawed-off with hacksaw, flat chisel or cut off screw often, then perforate again, screw tap hitch, gas cutting also will be used time serious to cut open.Not only waste time and energy, sometimes because the serious too difficulty of bolt corrosion is torn open, time and effort consuming, also can schedule delays.
Summary of the invention
Technical problem to be solved by this invention is to provide the hydraulic spanner that a kind of structure is simple, easy to use and reliable, can reduce labor intensity of operating staff, increase work efficiency.
For solving the problems of the technologies described above, the technical solution used in the present invention is:
A kind of hydraulic spanner, comprise the wrench body with jaw and handle, described handle is fixed on wrench body afterbody, described wrench body comprises jaw, body, slide bar piston and pressure handle, hydraulic cylinder is provided with in described body, described pressure handle one end and body hinged, described slide bar piston is vertically through body sidewall, hinged in the middle part of the exposed junction of described slide bar piston and pressure handle, described jaw and body are integral type, described jaw front end is circular arc, described jaw comprises fixed nip and movable clamp port, groove is provided with in described jaw, the movable clamp port that can slide in groove is fixedly connected with piston one end, the tail end of described body is provided with oil fuel tube, be provided with low oil pressure district and high oil pressure district in described hydraulic cylinder, be provided with hydraulic valve, be provided with the second check valve in hydraulic valve in described low oil pressure district, described second one-way valved outlet end is communicated with high oil pressure district, and the other end is communicated with the cylinder chamber of slide bar piston, also be provided with the first check valve in described hydraulic valve, the entrance of the first check valve is communicated with low oil pressure district, and the outlet of the first check valve is communicated with the cylinder chamber of slide bar piston, described body outer wall is provided with relief valve, described relief valve is by the low oil pressure district of hydraulic cylinder, high oil pressure district is communicated with, the working face of described fixed nip and movable clamp port is equipped with arc wear-resistant block, teeth groove is provided with inside described arc wear-resistant block, the working face of described arc wear-resistant block and fixed nip and movable clamp port is all bolted, the free end of described piston is provided with annular boss, described annular boss is fixed with spring, described body is provided with rotating shaft, described pressure handle end and rotating shaft hinged, described body is provided with connecting bolt, through hole is provided with in the middle part of described connecting bolt, described slide bar piston is arranged in the through hole of connecting bolt, rubber sealing boot is provided with between described slide bar piston and the through hole of connecting bolt.
Preferably, the contact end face of described hydraulic cylinder and body is equipped with sealing ring.
Preferably, described handle is hollow form, and described handle tail end is provided with end cap, and described end cap and handle are for being threaded.
The beneficial effect adopting technique scheme to produce is: by lifting slide bar piston, first one-way valve opens, hydraulic oil enters in hydraulic valve body, lever principle is utilized to press pressure handle, second one-way valve opens, hydraulic oil in valve body is pressed into high oil pressure district, hydraulic oil driven plunger, and then drive movable clamp port by nut or nuts clamping, open relief valve after dismounting again and carry out pressure release, driven plunger returns under the action of the spring, jaw can unclamp, bolt or the nut of different size is adapted to by changing jaw size, arc wear-resistant block increases through Quenching Treatment hardness, wearability is better, bolted arc wear-resistant block is more convenient for changing, increase the service life, the arc wear-resistant block clamping nut or the nuts that are provided with teeth groove are firm, non-slip, cannot dismantle for common wrench, remove the bolt of serious corrosion and privileged sites, only can loosen nut fast by suitable moment, nut or the bolt of removing corrosion are quick, efficiently.The present invention has that structure is simple, reasonable in design, durable, easy to use and reliable, flexible, the advantage of applied range, long service life, can reduce the labour intensity of operating personnel, increase work efficiency.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the top view of Fig. 1;
Fig. 3 is the structural principle schematic diagram of Fig. 1;
In figure: 1-wrench body, 2-handle, 3-jaw, 4-body, 5-slide bar piston, 6-pressure handle, 7-hydraulic cylinder, 8-piston, 9-oil fuel tube, 10-end cap, 11-hydraulic valve, 12-relief valve, 13-spring, 14-rotating shaft, 15-connecting bolt, 16-sealing ring, 31-fixed nip, 32-movable clamp port, 33-arc wear-resistant block, 34-teeth groove, 35-bolt, 71-low oil pressure district, 72-height oil pressure district, 81-boss, 17-first check valve, 18-second check valve.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
As Fig. 1, a kind of hydraulic spanner shown in 2, comprise the wrench body 1 with jaw and handle 2, described handle 2 is fixed on wrench body 1 afterbody, described wrench body 1 comprises jaw 3, body 4, slide bar piston 5 and pressure handle 6, hydraulic cylinder 7 is provided with in described body 4, described pressure handle 6 one end and body 4 hinged, described slide bar piston 5 is vertically through hydraulic cylinder 7 and body 4 sidewall, hinged in the middle part of the exposed junction of described slide bar piston 5 and pressure handle 6, described jaw 3 is integral type with body 4, described jaw 3 front end is circular arc, described jaw 3 comprises fixed nip 31 and movable clamp port 32, groove is provided with in described jaw 3, the movable clamp port 32 that can slide in groove is fixedly connected with piston 8 one end, the tail end of described body 4 is provided with oil fuel tube 9, and it is stifled that described oil fuel tube 9 end is provided with oil, low oil pressure district 71 and high oil pressure district 72 is provided with in described hydraulic cylinder, hydraulic valve 11 is provided with in described low oil pressure district 71, be provided with the second check valve 18 in hydraulic valve 11, described second check valve 18 port of export is communicated with high oil pressure district 72, and the other end is communicated with the cylinder chamber of slide bar piston 5 lower end, the entrance being also provided with the first check valve 17, first check valve 17 in described hydraulic valve 11 is communicated with low oil pressure district 71, and the outlet of the first check valve 17 is communicated with the cylinder chamber of slide bar piston 5 lower end, described body 4 outer wall is provided with relief valve 12, and high oil pressure district 72 is communicated with low oil pressure district 71 by described relief valve 12.
As a kind of preferred structure, the other end of described piston 8 is provided with annular boss 81, the annular boss 81 of described piston 8 is fixed with spring 13, relief valve 12 can be opened after removing nut and pressure release is carried out to the hydraulic oil in high oil pressure district 72, under the effect of spring 13, make piston 8 return simultaneously, realize unclamping of jaw 3; The working face of described fixed nip 31 and movable clamp port 32 is equipped with arc wear-resistant block 33, be provided with teeth groove 34 inside described arc wear-resistant block 33, arc wear-resistant block 33 carried out Quenching Treatment, adds strong hardness, increase its wearability, the teeth groove 34 of processing can binding nut or nuts more firmly; Described body 4 is provided with rotating shaft 14, described pressure handle 6 end and rotating shaft 14 hinged, pressure handle 6 can 14 to rotate around the shaft, utilizes lever principle to be pressed down by slide bar piston 5, drives hydraulic valve 11 action.
As a kind of preferred structure, described hydraulic cylinder 7 cylinder body and body 4 are provided with connecting bolt 15, through hole is provided with in the middle part of described connecting bolt 15, described slide bar piston 5 is arranged in the through hole of connecting bolt 15, rubber sealing boot is provided with between described slide bar piston 5 and the through hole of connecting bolt 15, can prevent hydraulic oil from leaking outside by rubber sealing boot, improve sealing; Described arc wear-resistant block 33 is all connected by bolt 35 with the working face of fixed nip 31 and movable clamp port 32, long-time use, arc wear-resistant block 33 will serious wear, hinged bolt 35 is changed, with the service life of extension device, the size simultaneously also by changing arc wear-resistant block 33 adapts to nut or the bolt of different size.
As a kind of preferred structure, described hydraulic cylinder 7 is equipped with sealing ring 16 with the contact end face of body 4, can ensure that the sealing of hydraulic cylinder 7 is good; Described handle 2 is hollow form, and described handle 2 tail end is provided with end cap 10, and described end cap 10 and handle 2 are for being threaded, and the oil fuel tube 9 of hydraulic cylinder 7 is arranged in handle 2, and open end cap 10 during repairing, end of operation tightens end cap 10.
As shown in Figure 3, by lifting slide bar piston 5, first check valve 17 is opened, hydraulic oil enters in hydraulic valve 11 valve body cylinder chamber, lever principle is utilized to press pressure handle 6, second check valve 18 is opened, hydraulic oil in valve body cylinder chamber is pressed into high oil pressure district 72, hydraulic oil driven plunger 8, and then drive movable clamp port 32 by nut or nuts clamping, open relief valve 12 after dismounting again and carry out pressure release, driven plunger 8 returns under the effect of spring 13, jaw 3 can unclamp, bolt or the nut of different size is adapted to by changing arc wear-resistant block 33, arc wear-resistant block 33 increases through Quenching Treatment hardness, wearability is better, bolted arc wear-resistant block 33 is more convenient for changing, increase the service life, the arc wear-resistant block clamping nut or the nuts that are provided with teeth groove 34 are firm, non-slip, cannot dismantle for common wrench, remove the bolt of serious corrosion and privileged sites, only can loosen nut fast by suitable moment, nut or the bolt of removing corrosion are quick, efficiently.
In sum, the present invention has that structure is simple, reasonable in design, durable, flexible, the advantage of applied range, long service life, can reduce the labour intensity of operating personnel, increase work efficiency.The present invention is utilized to use in scene in equipment rebuilding, technological transformation, working time shortens about 30%, especially run in equipment rebuilding process need disintegrate time, implanted bolt is difficult to dismounting because nut corrosion loses corner angle, but destructiveness dismounting can not be carried out, the present invention can solve this type of difficult problem effectively.
Claims (3)
1. a hydraulic spanner, comprise the wrench body (1) with jaw and handle (2), described handle (2) is fixed on wrench body (1) afterbody, described wrench body (1) comprises jaw (3), body (4), slide bar piston (5) and pressure handle (6), hydraulic cylinder (7) is provided with in described body (4), described pressure handle (6) one end and body (4) hinged, described slide bar piston (5) is vertical through body (4) sidewall, the exposed junction of described slide bar piston (5) and pressure handle (6) middle part hinged, described jaw (3) and body (4) are integral type, described jaw (3) front end is circular arc, described jaw (3) comprises fixed nip (31) and movable clamp port (32), the tail end of described body (4) is provided with oil fuel tube (9), low oil pressure district (71) and high oil pressure district (72) is provided with in described hydraulic cylinder, hydraulic valve (11) is provided with in described low oil pressure district (71), the second check valve (18) is provided with in hydraulic valve (11), described second check valve (18) port of export is communicated with high oil pressure district (72), and the other end is communicated with the cylinder chamber of slide bar piston (5) lower end, also be provided with the first check valve (17) in described hydraulic valve (11), the entrance of the first check valve (17) is communicated with low oil pressure district (71), and the outlet of the first check valve (17) is communicated with the cylinder chamber of slide bar piston (5) lower end, described body (4) outer wall is provided with relief valve (12), and the high oil pressure district (72) of hydraulic cylinder (7) is communicated with low oil pressure district (71) by relief valve (12), the working face of described fixed nip (31) and movable clamp port (32) is equipped with arc wear-resistant block (33), described arc wear-resistant block (33) inner side is provided with teeth groove (34), and described arc wear-resistant block (33) is all connected by bolt (35) with the working face of fixed nip (31) and movable clamp port (32), described body (4) is provided with rotating shaft (14), pressure handle (6) end and rotating shaft (14) hinged, it is characterized in that: described jaw is provided with groove in (3), the movable clamp port (32) that can slide in groove is fixedly connected with piston (8) one end, the free end of described piston (8) is provided with annular boss (81), described annular boss (81) is fixed with spring (13), described body (4) is provided with connecting bolt (15), described connecting bolt (15) middle part is provided with through hole, described slide bar piston (5) is arranged in the through hole of connecting bolt (15), is provided with rubber sealing boot between described slide bar piston (5) and the through hole of connecting bolt (15).
2. hydraulic spanner according to claim 1, is characterized in that: described hydraulic cylinder (7) is equipped with sealing ring (16) with the contact end face of body (4).
3. hydraulic spanner according to claim 1, is characterized in that: described handle (2) is hollow form, and described handle (2) tail end is provided with end cap (10), and described end cap (10) and handle (2) are for being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310707686.3A CN103737524B (en) | 2013-12-20 | 2013-12-20 | Hydraulic spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310707686.3A CN103737524B (en) | 2013-12-20 | 2013-12-20 | Hydraulic spanner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103737524A CN103737524A (en) | 2014-04-23 |
| CN103737524B true CN103737524B (en) | 2015-10-21 |
Family
ID=50494626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310707686.3A Active CN103737524B (en) | 2013-12-20 | 2013-12-20 | Hydraulic spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103737524B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107127702A (en) * | 2017-05-17 | 2017-09-05 | 句容新禾五金电器有限公司 | Telescopic stress application pipe vice |
| CN108161813B (en) * | 2017-11-16 | 2019-11-05 | 安徽蒂森五金工具有限公司 | A kind of hand-hydraulic screw spanner |
| CN107971960B (en) * | 2017-11-20 | 2019-06-14 | 上海舜诺机械有限公司 | A kind of fluid pressure type spanner for narrow space |
| CN108942758B (en) * | 2018-08-14 | 2020-05-19 | 常州信息职业技术学院 | Anti-skid wrench |
| CN111968394B (en) * | 2020-08-28 | 2022-03-04 | 大冶市金鼎电子科技有限责任公司 | Intelligent traffic signal lamp with variable lane |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4206603A (en) * | 1977-07-13 | 1980-06-10 | Dan Mekler | Single hand operated tool |
| GB8530647D0 (en) * | 1984-12-13 | 1986-01-22 | Weatherford Uk Ltd | Rotating tubular member |
| CN86203740U (en) * | 1986-06-08 | 1987-01-28 | 王琨 | Automic hydraulic lever |
| CN202271305U (en) * | 2011-10-28 | 2012-06-13 | 刘伟雄 | Multifunctional wrench with hydraulic automatic locking device |
| CN103433883A (en) * | 2013-09-10 | 2013-12-11 | 杜德机械科技(上海)有限公司 | Open-type hydraulic torque wrench |
-
2013
- 2013-12-20 CN CN201310707686.3A patent/CN103737524B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4206603A (en) * | 1977-07-13 | 1980-06-10 | Dan Mekler | Single hand operated tool |
| GB8530647D0 (en) * | 1984-12-13 | 1986-01-22 | Weatherford Uk Ltd | Rotating tubular member |
| CN86203740U (en) * | 1986-06-08 | 1987-01-28 | 王琨 | Automic hydraulic lever |
| CN202271305U (en) * | 2011-10-28 | 2012-06-13 | 刘伟雄 | Multifunctional wrench with hydraulic automatic locking device |
| CN103433883A (en) * | 2013-09-10 | 2013-12-11 | 杜德机械科技(上海)有限公司 | Open-type hydraulic torque wrench |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103737524A (en) | 2014-04-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103737524B (en) | Hydraulic spanner | |
| CN203527395U (en) | Bolt take-out device skids | |
| CN202377765U (en) | Device for detaching hydraulic cylinder of blowout preventer | |
| CN203197834U (en) | Pin disassembling tool for pin coupler | |
| CN102493293A (en) | Hydraulic steel rail hole-punching machine | |
| CN204076165U (en) | The special wrench for dismounting of high-pressure descaling nozzle | |
| CN206663069U (en) | The Novel socket wrench that a kind of construction site uses | |
| CN202639815U (en) | Hydraulic tightening and detaching tool for crosshead nut | |
| CN203650416U (en) | Combined extractor of plunger pump | |
| CN204053436U (en) | A kind of special equipment for the dismounting of first band string bar | |
| CN206967389U (en) | A kind of quick Special dismounting apparatus of fracturing pump valve body rubber | |
| CN103158106B (en) | Special tool for breaker hydraulic mechanism valve body maintenance and using method of the same | |
| CN218745296U (en) | Bolt cutting device | |
| CN204371887U (en) | Apical ring hydraulic nut | |
| CN204366393U (en) | Single-stage high type bolt tensioning jack | |
| CN201824294U (en) | Special wrench for maintenance of valve | |
| CN206066337U (en) | Roller way cooling water pipe rotary joint detacher | |
| CN204354065U (en) | For nuclear power station plant equipment alignment pin extracting apparatus | |
| CN202147251U (en) | Auxiliary tool for changing packing of oil pumping machine well head | |
| CN210633561U (en) | Crane traveling coupling bolt dismounting tool | |
| CN202357104U (en) | Hydraulic portable liquid cylinder flashboard shaft loading and unloading device for blowout preventer | |
| CN210825233U (en) | Crane electromagnetic brake release assistor | |
| CN203510092U (en) | Chain plate installer of chain | |
| CN206277338U (en) | A kind of hydraulic nut splitter | |
| CN203906415U (en) | Supercharger |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |