CN204160162U - Hollow type hydraulic torque wrench device - Google Patents
Hollow type hydraulic torque wrench device Download PDFInfo
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- CN204160162U CN204160162U CN201420494030.8U CN201420494030U CN204160162U CN 204160162 U CN204160162 U CN 204160162U CN 201420494030 U CN201420494030 U CN 201420494030U CN 204160162 U CN204160162 U CN 204160162U
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- pressure
- pressure oil
- type hydraulic
- torque wrench
- hollow type
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Abstract
The utility model discloses a kind of hollow type hydraulic torque wrench device, comprise working head and unit head, described working head is provided with sleeve, wherein, described unit head is connected with high pressure pumping station by swivel joint, snap joint, high-pressure oil pipe, described swivel joint and snap joint are mutually vertical to be arranged, and the below of described unit head is provided with counter-force arm, described counter-force arm and the almost parallel setting of swivel joint; Described high pressure pumping station comprises motor, and the high-pressure oil passage outlet of described motor is connected with the high-pressure inlet in snap joint by high-pressure oil pipe, and the low pressure oil way outlet of described motor is connected with the low pressure inlet in snap joint by high-pressure oil pipe.The hollow type hydraulic torque wrench device that the utility model provides, unit head is connected high pressure pumping station by mutual vertically disposed swivel joint with snap joint, and arranges the counter-force arm almost parallel with swivel joint, thus can improve output torque precision, structure is simple, easy for operation.
Description
Technical field
The utility model relates to a kind of wrench device, particularly relates to a kind of hollow type hydraulic torque wrench device.
Background technology
Hydraulic torque wrench adopts aeronautical material aluminum titanium alloy and superstrength alloy material to manufacture, and is Non-follow control, double-acting hydraulic pressure design, can lock and unclamp bolt to connect, be suitable for high-torque Bolt dismantling, installation, moment of torsion is accurately adjustable, and error is no more than ± and 3%.Be widely used in the industries such as iron and steel, shipbuilding, electric power, petroleum and petrochemical industry, chemical industry, railway, rubber and machinery.
Hydraulic torque wrench is hydraulic spanner again, is divided into driving hydraulic torque wrench and the large class of hollow type hydraulic torque wrench two.Driving matching standard wrench socket uses, and is universal hydraulic spanner, applied widely; Hollow type hydraulic spanner divides spanner working head and unit head, and matching standard drill holder uses, for special operation condition uses hydraulic spanner.Existing hollow type hydraulic torque wrench device ubiquity complex structure, operation uses inconvenient and that output torque precision is not high shortcoming.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of hollow type hydraulic torque wrench device, can improve output torque precision, and structure is simple, easy for operation.
The utility model is solve the problems of the technologies described above the technical scheme adopted to be to provide a kind of hollow type hydraulic torque wrench device, comprise working head and unit head, described working head is provided with sleeve, wherein, described unit head is connected with high pressure pumping station by swivel joint, snap joint, high-pressure oil pipe, described swivel joint and snap joint are mutually vertical to be arranged, and the below of described unit head is provided with counter-force arm, described counter-force arm and the almost parallel setting of swivel joint.
Above-mentioned hollow type hydraulic torque wrench device, wherein, described high pressure pumping station comprises motor, described motor is provided with Pressure gauge, reversing handle, pumping plant switch, low-lift pump overflow valve and high-pressure overflow valve, the high-pressure oil passage outlet of described motor is connected with the high-pressure inlet in snap joint by high-pressure oil pipe, and the low pressure oil way outlet of described motor is connected with the low pressure inlet in snap joint by high-pressure oil pipe.
Above-mentioned hollow type hydraulic torque wrench device, wherein, described sleeve is regular hexagon sleeve.
The utility model contrast prior art has following beneficial effect: the hollow type hydraulic torque wrench device that the utility model provides, unit head is connected high pressure pumping station by mutual vertically disposed swivel joint with snap joint, and the counter-force arm almost parallel with swivel joint is set, thus output torque precision can be improved, structure is simple, easy for operation.
Accompanying drawing explanation
Fig. 1 is the utility model hollow type hydraulic torque wrench apparatus structure schematic diagram.
In figure:
1 working head 2 sleeve 3 unit head
4 snap joint 5 swivel joint 6 counter-force arm
7 high-pressure oil pipe 8 high pressure pumping station 81 motors
82 Pressure gauge 83 reversing handle 84 pumping plant switches
85 low-lift pump overflow valve 86 high-pressure overflow valve 87 low pressure oil way outlets
88 high-pressure oil passage outlets
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
Fig. 1 is the utility model hollow type hydraulic torque wrench apparatus structure schematic diagram.
Refer to Fig. 1, the hollow type hydraulic torque wrench device that the utility model provides comprises working head 1 and unit head 3, described working head 1 is provided with sleeve 2, wherein, described unit head 3 is connected with high pressure pumping station 8 by swivel joint 5, snap joint 4, high-pressure oil pipe 7, described swivel joint 5 and snap joint 4 vertical setting mutually, the below of described unit head 3 is provided with counter-force arm 6, described counter-force arm 6 and the almost parallel setting of swivel joint 5.
The hollow type hydraulic torque wrench device that the utility model provides, unit head 3 is connected high pressure pumping station 8 by mutual vertically disposed swivel joint 5 with snap joint 4, and arranges the counter-force arm 6 almost parallel with swivel joint 5, thus can improve output torque precision.Described sleeve 2 is regular hexagon sleeve, selects the sleeve annex of different model, and under the effect of high pressure pumping station oil pressure, can complete the locking of various bolt and dismantle, structure is simple, easy for operation.Concrete advantage is as follows: 1) lightweight, volume is little, torsion is large, adopt the manufacture of superstrength alloy material, operating pressure is up to 70MPa.2) output torque accuracy is high, and error is no more than ± and 3%.3) 360 ° × 360 ° oil connections rotated, fully can be applicable to the operation requirements of different operating environment.4) save labour, alleviate working strength, increase work efficiency.
The hollow type hydraulic torque wrench device that the utility model provides, wherein, described high pressure pumping station 8 comprises motor 81, described motor 81 is provided with Pressure gauge 82, reversing handle 83, pumping plant switch 84, low-lift pump overflow valve 85 and high-pressure overflow valve 86, the high-pressure oil passage outlet 88 of described motor 81 is connected with the high-pressure inlet in snap joint 4 by high-pressure oil pipe 7, and the low pressure oil way outlet 87 of described motor 81 is connected with the low pressure inlet in snap joint 4 by high-pressure oil pipe 7.Snap joint 4 during connection on oil pipe should be inserted into the end.
The test running process of the hollow type hydraulic torque wrench device that the utility model provides is as follows:
(1) spanner is placed on vacant lot.
(2) reversing handle 83 is placed in O position.
(3) open pumping plant power switch, start pumping plant, check whether motor works well.
(4) reversing handle 83 is threaded to A position (counterclockwise), spanner starts running, again reversing handle 83 is placed in B position (clockwise) until piston rod movement to during extreme position, so repeatedly several times, make the empty rotated several times of spanner, observe spanner and turn to, determine to dismantle or lock motion, time without exception, spanner could be put on sleeve 2.
The operating process of the hollow type hydraulic torque wrench device that the utility model provides is as follows:
(1) the locking torque size of actual needs is determined
User can according to the designing requirement determination locking torque of equipment of itself; Concrete grammar is: locking torque=(in table data) × (60-70) %.
Such as: 8.8 grades, M48 bolt, advise in table that pre-fastening moment is 4921Nm, then actual locking torque is:
4921×70%=3444 N·m。
(2) pump station pressure setting value is determined
Pump station pressure is set according to required moment values and spanner model used.As above-mentioned 8.8 grades, M48 bolt, locking torque is 3444Nm, and finding corresponding to the pressure of pumping plant during 3444 Nm moment is 46MPa, so pump station pressure should be set as 46MPa.
(3) pump station pressure establishing method
Revolved by reversing handle 83 and put A position, start spanner, observe Pressure gauge 82, when piston rod movement is to extreme position, Pressure gauge 82 pointer is risen rapidly by " 0 ".Meanwhile, regulate the high-pressure overflow valve 86 on pumping plant, regulate clockwise, pressure raises, and regulates counterclockwise, pressure drop, until pressure needed for Pressure gauge 82 pointed, after gauge hand is stable, tightens the locking nut of high-pressure overflow valve 86.
(4) locking nut
Be enclosed within the nut that will lock by spanner, six sides are good fit outward to make hexagonal hole and nut on spanner.Then reaction fulcrum is found, by steady.Start locking, reversing handle 83 is threaded to A position (counterclockwise), spanner starts running, when piston rod movement arrives extreme position, then reversing handle 83 is placed in B position (clockwise), so repeatedly, make spanner rotated several times, till nut check is motionless.Then spanner is taken off.
(5) nut is dismantled
Turn up full blast pump station pressure 70MPa, spanner is placed on nut, finds reaction fulcrum, by steady, start to dismantle, reversing handle 83 is threaded to A position (counterclockwise), spanner starts running, when piston rod movement arrives extreme position, again reversing handle 83 is placed in B position (clockwise), so repeatedly, spanner rotated several times is made, until pulled down by nut.
The hollow type hydraulic torque wrench device that the utility model provides, tighten with when dismantling, system working pressure is no more than 70MPa; During electrodynamic pump with electromagnetic switch, when must note piston rod movement to two ends extreme position, must release button commutation immediately; High-pressure oil pipe should be in free state, must not curve the circle that diameter is less than 500mm.Keep snap joint to clean before connecting, screw on dust cap after using, oil pipe need do a bulge test every year.In addition, hydraulic spanner respectively connects hinge and moving part and is coated with lubricating grease and reduces and cause loss of machine of torque by rubbing.
Although the utility model discloses as above with preferred embodiment; so itself and be not used to limit the utility model; any those skilled in the art; not departing from spirit and scope of the present utility model; when doing a little amendment and perfect, therefore protection domain of the present utility model is when being as the criterion of defining with claims.
Claims (3)
1. a hollow type hydraulic torque wrench device, comprise working head (1) and unit head (3), described working head (1) is provided with sleeve (2), it is characterized in that, described unit head (3) is connected with high pressure pumping station (8) by swivel joint (5), snap joint (4), high-pressure oil pipe (7), described swivel joint (5) and snap joint (4) vertical setting mutually, the below of described unit head (3) is provided with counter-force arm (6), described counter-force arm (6) and swivel joint (5) almost parallel setting.
2. hollow type hydraulic torque wrench device as claimed in claim 1, it is characterized in that, described high pressure pumping station (8) comprises motor (81), described motor (81) is provided with Pressure gauge (82), reversing handle (83), pumping plant switch (84), low-lift pump overflow valve (85) and high-pressure overflow valve (86), high-pressure oil passage outlet (88) of described motor (81) is connected with the high-pressure inlet in snap joint (4) by high-pressure oil pipe (7), low pressure oil way outlet (87) of described motor (81) is connected with the low pressure inlet in snap joint (4) by high-pressure oil pipe (7).
3. hollow type hydraulic torque wrench device as claimed in claim 1, it is characterized in that, described sleeve (2) is regular hexagon sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420494030.8U CN204160162U (en) | 2014-08-29 | 2014-08-29 | Hollow type hydraulic torque wrench device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420494030.8U CN204160162U (en) | 2014-08-29 | 2014-08-29 | Hollow type hydraulic torque wrench device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204160162U true CN204160162U (en) | 2015-02-18 |
Family
ID=52533888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420494030.8U Active CN204160162U (en) | 2014-08-29 | 2014-08-29 | Hollow type hydraulic torque wrench device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204160162U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362645A (en) * | 2015-08-07 | 2017-02-01 | 安徽中研理工仪器设备有限公司 | High pressure kettle switching device system and method |
| CN109098450A (en) * | 2018-09-14 | 2018-12-28 | 湖南三快而居住宅工业有限公司 | Reinforced bar sleeve pressurizing unit with horizontal folding arm |
| CN112548547A (en) * | 2019-09-25 | 2021-03-26 | 中冶宝钢技术服务有限公司 | Sector hydraulic nut dismounting device and sector dismounting method |
-
2014
- 2014-08-29 CN CN201420494030.8U patent/CN204160162U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106362645A (en) * | 2015-08-07 | 2017-02-01 | 安徽中研理工仪器设备有限公司 | High pressure kettle switching device system and method |
| CN109098450A (en) * | 2018-09-14 | 2018-12-28 | 湖南三快而居住宅工业有限公司 | Reinforced bar sleeve pressurizing unit with horizontal folding arm |
| CN112548547A (en) * | 2019-09-25 | 2021-03-26 | 中冶宝钢技术服务有限公司 | Sector hydraulic nut dismounting device and sector dismounting method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |