CN205915271U - Cavity large deflection rotation type liquid pressure -torsion spanner of doing all can - Google Patents
Cavity large deflection rotation type liquid pressure -torsion spanner of doing all can Download PDFInfo
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- CN205915271U CN205915271U CN201620468268.2U CN201620468268U CN205915271U CN 205915271 U CN205915271 U CN 205915271U CN 201620468268 U CN201620468268 U CN 201620468268U CN 205915271 U CN205915271 U CN 205915271U
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- gear
- tooth
- tooth bar
- helical gear
- hydraulic
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Abstract
The utility model discloses a cavity large deflection rotation type liquid pressure -torsion spanner of doing all can, mainly used be used for the pretension with dismantle the high strength nut. Cavity large deflection rotation type liquid pressure -torsion spanner of doing all can, including pneumatic cylinder, piston, piston rod, rack, gear, pawl and gearing, the one end of piston rod and the hinge joint who arranges the pneumatic cylinder in, the other end of piston rod stretch out the pneumatic cylinder with rack rigid connection, gear are cylindrical helical gear, and tooth and rack toothing on the surface of cylindrical helical gear, ratchet arrange the internal surface of cylindrical helical gear in, set up the pawl in the cylindrical helical gear and rotate through pawl drive ratchet. The utility model discloses a rack and cylindrical gear assorted drive structure, the whole thickness of spanner is little, compact structure, simple, use easy maintenance, the corner can reach 118, and is efficient, hard gear surface and specific shape is adopted, life and work stationarity can be improved, hydraulic control system is simple, the moment of torsion is big, with low costs, maintain that the maintenance is simple.
Description
Technical field
This utility model is related to a kind of fastening or extracting tool, more particularly to a kind of in large-scale nut
Empty formula big corner rotary type hydraulic torque spanner.
Background technology
Hydraulic wrench is used to pretension and a kind of hydraulic tool of dismounting high strength nut, is widely used in
The fields such as petrochemical industry, the energy, ship, building, aviation.Hydraulic spanner be broadly divided into drive-type hydraulic spanner and
Hollow hydraumatic spanner, hollow hydraumatic spanner typically adopts special hook formula structure to connect unit head and work
Head, drives the ratchet with non-return member by unit head, then drives spanner work by ratchet, with pulse
Mode completes fastening or the dismounting of bolt.The driving of spanner adopts Superhigh Pressure Hydraulic System, even if in corner relatively
In the case of little, due to turning arm swing quickly, the requirement to hydraulic control system is also very high, using little
Flow, supertension design and special hydraulic medium, hydraulic control circuit is extremely complex, and control system requires
Height, some need to be controlled using Programmable Logic Controller.The special steel selecting high intensity on material more.
The particularity of material and hydraulic control system leads to that price is very high, the relatively low enterprise that constrains of cost performance is to this work
The use of tool.Because hydraulic pressure, the complicated generation of control system are safeguarded and maintenance aspect problem, need professional
Hydraulic system and control system can be keeped in repair, cause to keep in repair, the cost of maintenance is very high.
Notification number is that the Chinese utility model patent of cn2288823y discloses a kind of hydraulic spanner, this hydraulic pressure
Spanner adopts the hardened structure of rack and pinion, and this structure is relatively simple, but the corner of gear plate is less than
30 °, work efficiency is relatively low, only can be applied to odontotripsis on small-sized bolt, and rack and pinion plate relatively
Hurry up.
Utility model content
The technical problems to be solved in the utility model be provide a kind of corner big, structure is simple and easy to operate,
High working efficiency, system maintenance be convenient, with low cost and the hydraulic spanner of long service life.
The technical solution adopted in the utility model is, a kind of hollow big corner rotary type hydraulic torque spanner, bag
Include hydraulic cylinder, piston, piston rod, tooth bar, gear, pawl-and-gearing, one end of described piston rod with put
Described piston in described hydraulic cylinder connects, the other end of described piston rod stretch out described hydraulic cylinder with described
Tooth bar is rigidly connected, and described gear is cylindrical helical gear, the tooth on cylindrical helical gear outer surface and tooth
Bar engages, and described ratchet is placed in described cylindrical helical gear inner surface, setting in described cylinder helical gear
Described ratchet simultaneously drives described pawl wheel by ratchet.
Further, the length of described tooth bar is the 25%～45%% of described cylinder helical gear surface perimeter, excellent
The embodiment of choosing is 33%；Described tooth bar is Hardened gear face tooth bar, and tooth surface quenching hardness is hrc42, described
Gear is Hardened gear face ratchet wheel, and tooth face hardness is hrc30, and described tooth bar, the flank of tooth of gear are that involute-type is oblique
Tooth.
The beneficial effects of the utility model are: the driving structure being matched using helical rack and helical gear, spanner
Integral thickness little, compact conformation, simple, easy maintenance；The length of tooth bar is the oblique gear of cylinder
The 25%～45%% of surface perimeter, corner maximum up to 90～162 °, efficiency high, general one stroke of nut
Can achieve locking；Using Hardened gear face and helical teeth engagement, service life and stable working can be improved；Hydraulic pressure
Control system is simple, moment of torsion is big, low cost, maintenance and repair are simple.
Brief description
Accompanying drawing 1 is this utility model front view cross-sectional view；
Accompanying drawing 2 is this utility model spanner and hydraulic system structure schematic diagram.
Specific embodiment
Below in conjunction with the accompanying drawings this utility model is described in further detail.
As shown in figure 1, hollow big corner rotary type hydraulic torque spanner, mechanical enforcement division in spanner housing 6
Point, including hydraulic cylinder 4, piston 3, piston rod 5, tooth bar 7, gear 8, ratchet 10 and ratchet 11.Institute
The one end stating piston rod 5 is connected with the described piston 3 being placed in described hydraulic cylinder 4, described piston rod 5
The other end is stretched out described hydraulic cylinder 4 and is rigidly connected with described tooth bar 7, and described tooth bar and piston rod can be with splits
Manufacture and then be rigidly connected it is also possible to overall manufacture.Described gear 8 is cylindrical helical gear, cylindrical oblique
Tooth on the outer surface of gear 8 is engaged with tooth bar 7, and the effective length of described tooth bar is described cylinder helical teeth
The 25%～45% of wheel surface girth, preferred surface perimeter is 33%.Using cylindrical helical gear and according to tooth
Wheel surface girth designs the length of tooth bar, ensure that the corner of each impulse stroke of ratchet reach 90～
162 °, preferred corner is 118 °, can effectively improve work efficiency.Described tooth bar is Hardened gear face tooth
Bar, tooth surface quenching hardness is hrc42, and described gear is hardened face gear, and tooth face hardness is hrc30, adopts
The service life of rack and pinion can be improved with Hardened gear face.Described tooth bar, the cutting structure of gear are gradually to open
Line style helical teeth, can reduce the impact to gear for the tooth bar using the engagement of involute-type helical teeth, in the course of the work
Engagement is more steady and can bear very big load.Described ratchet 11 is placed in the interior of described cylinder helical gear 8
Surface, arranges described ratchet 10 in described cylinder helical gear 8 and drives described ratchet 11 by ratchet 10
Rotate.
As shown in Fig. 2 the technical solution of the utility model can be divided into hydraulic-driven and machinery execution two parts,
Hydraulic-driven part is made up of oil pump 1, reversal valve 2, piston 3, hydraulic cylinder 4, piston rod 5.By changing
To the commutation of valve, change the direction of motion of the piston in hydraulic cylinder.Operation principle is, oil pump 1 operationally,
Hydraulic oil makes pressure oil enter into the right chamber of hydraulic cylinder 4 through reversal valve 2, promotes piston 3 to be moved to the left,
Piston 3 drives piston rod 5 to move.Piston rod 5 promotes tooth bar 7 to left movement, now engages with tooth bar
Gear 8 rotates, and drives ratchet 11 to rotate by ratchet 10.Realize tightening and dismantling to nut.?
When tooth bar 7 reaches high order end, reversal valve 2 realizes the counteragent of piston rod by people or travel switch,
Hydraulic oil is pushed the left chamber of hydraulic cylinder 4 by hydraulic pump 1, and piston 3 moves to right, and drives piston rod 5 and tooth bar 7
Rollback to the right, is driven and is turned round with tooth bar 7 meshed gears 8, spring 9 is compressed, and ratchet 10 moves up,
Ratchet 11 does not stress and remains stationary as；After tooth bar 7 returns to low order end, start the process that the next one is tightened.
Although this utility model uses single-acting structure design, can be by using pulling when using
Two end faces of handss are realized the tightening of nut or are unclamped operation.
Claims (7)
1. a kind of hollow big corner rotary type hydraulic torque spanner, including hydraulic cylinder, piston, piston rod, tooth
Bar, gear, pawl-and-gearing it is characterised in that one end of described piston rod be placed in described hydraulic cylinder
Described piston connect, the other end of described piston rod is stretched out described hydraulic cylinder and is rigidly connected with described tooth bar,
Described gear is cylindrical helical gear, and the tooth on cylindrical helical gear outer surface is engaged with tooth bar, described spine
Wheel is placed in described cylindrical helical gear inner surface, arranges described ratchet and pass through in described cylinder helical gear
Ratchet drives described pawl wheel.
2. hydraulic wrench according to claim 1 is it is characterised in that effective length of described tooth bar
Spend 25%～45% for described cylinder helical gear surface perimeter.
3. hydraulic wrench according to claim 2 is it is characterised in that effective length of described tooth bar
Spend 33% for described cylinder helical gear surface perimeter.
4. according to claim 1,2 or 3 hydraulic wrench it is characterised in that described tooth bar is hard
Flank of tooth helical rack, tooth face hardness is hrc42.
5. according to claim 1,2 or 3 hydraulic wrench it is characterised in that described gear is hard
Flank of tooth cylindric spiral gear, tooth face hardness is hrc30.
6. according to claim 1,2 or 3 hydraulic wrench it is characterised in that described tooth bar, tooth
The flank of tooth of wheel is involute-type helical teeth.
7. according to claim 1,2 or 3 hydraulic wrench it is characterised in that described tooth bar, work
Stopper rod is overall manufacture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620468268.2U CN205915271U (en) | 2016-05-19 | 2016-05-19 | Cavity large deflection rotation type liquid pressure -torsion spanner of doing all can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620468268.2U CN205915271U (en) | 2016-05-19 | 2016-05-19 | Cavity large deflection rotation type liquid pressure -torsion spanner of doing all can |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205915271U true CN205915271U (en) | 2017-02-01 |
Family
ID=57877197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620468268.2U Expired - Fee Related CN205915271U (en) | 2016-05-19 | 2016-05-19 | Cavity large deflection rotation type liquid pressure -torsion spanner of doing all can |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205915271U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161813A (en) * | 2017-11-16 | 2018-06-15 | 安徽蒂森五金工具有限公司 | A kind of hand-hydraulic screw spanner |
| CN108858060A (en) * | 2018-09-10 | 2018-11-23 | 天津渤海石化有限公司 | A kind of flange clamp device |
-
2016
- 2016-05-19 CN CN201620468268.2U patent/CN205915271U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108161813A (en) * | 2017-11-16 | 2018-06-15 | 安徽蒂森五金工具有限公司 | A kind of hand-hydraulic screw spanner |
| CN108858060A (en) * | 2018-09-10 | 2018-11-23 | 天津渤海石化有限公司 | A kind of flange clamp device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20190519 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |