CN203765539U - Hydraulic torque tightening machine - Google Patents
Hydraulic torque tightening machine Download PDFInfo
- Publication number
- CN203765539U CN203765539U CN201420066711.4U CN201420066711U CN203765539U CN 203765539 U CN203765539 U CN 203765539U CN 201420066711 U CN201420066711 U CN 201420066711U CN 203765539 U CN203765539 U CN 203765539U
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- China
- Prior art keywords
- hydraulic torque
- tightening machine
- torque tightening
- fuselage
- counterforce device
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Abstract
The utility model relates to a hydraulic torque tightening machine which comprises a counterforce device, a driving mechanism, a machine body, an oil inlet and outlet connector, a counting mechanism. The hydraulic torque tightening machine solves the ubiquitous problems of similar products; the ubiquitous problems include that the stressed portion of a driving shaft of the hydraulic torque tightening machine is broken due to the design of a transition structure or technology holes and hydraulic oil of the oil inlet and outlet connector leaks. According to the torque strength actually used by the hydraulic torque tightening machine, when the use number of stressed vulnerable parts is equal to the designed use number, the stressed vulnerable parts can be replaced in advance under the circumstance that the stressed vulnerable parts of the hydraulic torque tightening machine are not damaged, therefore the situation that equipment and personnel are damaged due to the fact that the stressed vulnerable parts break suddenly in the use process of the hydraulic torque tightening machine is avoided.
Description
Technical field
The utility model relates to a kind of hydraulic torque tightening machine, is applicable to the connecting bolt on various industrial equipments and pipe flange, the moment of torsion of nut is tightened work.
Background technology
In current industrial equipment, equipment, the especially connection between the key components and parts of Large-Scale Equipment, for maintenance, easy maintenance in the future, great majority are to adopt bolt and nut to connect.For example: steam power plant, hydro-electric power generating equipment, nuclear power generating equipment, wind power generating set equipment, metallurgical equipment, mining equiment, shipbuilding equipment, petrochemical equipment etc. have thousands of large-sized bolt for the connection of its key components and parts, these bolts all need to tighten and dismantle with instrument or the equipment that can set moment of torsion, to guarantee that the pretightning force of each connecting bolt, nut is tried one's best, equate, guarantee that equipment component is by effective, safety, connection reliably.There is following four problems in more existing torque tools or equipment: when counter-force fulcrum can not be found in the bolt 1, being tightened at needs or nut side, cannot use torque wrench to tighten this bolt or nut; 2, because the spline of the hydraulic torque tightening machine driving shaft of driving mechanism is to square head transition structure or the design of beating fabrication hole in the middle of square axis, easily cause driving shaft to rupture; 3, hydraulic oil passes in and out into the unconfined rotation of delivery connection and can cause seal to be wound around, thereby produces hydraulic fluid leak; 4, the actual access times of hydraulic torque tightening machine cannot be followed the tracks of, and can not change in time consumable accessory in orthochronous.The problems referred to above cause the bolted moment of torsion Joint failure of the parts of domestic a lot of key equipments, can cause the accidents such as chemical plant leakage blast, Leakage of Oil Storage pollute, wind-driven generator collapses when serious.
The hydraulic torque tightening machine existing in the world is at present after being used certain hour, and mechanical part can produce mechanical fatigue fracture or damage.Owing to can not effectively following the tracks of the actual access times of hydraulic torque tightening machine, cannot when should change stressed easily worn part by accurately predicting, usually cause hydraulic torque tightening machine in use stressed easily worn part rupture suddenly, cause equipment and personnel injury.
Summary of the invention
In view of above international and domestic ubiquitous problem, the purpose of this utility model is to provide a kind of hydraulic torque tightening machine, can tighten like a cork the screw bolt and nut on industrial equipment equipment, can avoid driving shaft fracture, hydraulic fluid leak, and can carry out real-time tracking to access times, on one side the timely stressed easily worn part of changing hydraulic torque tightening machine.
Concrete technical scheme is as follows:
A hydraulic torque tightening machine, comprises that counterforce device, driving mechanism, fuselage, Universal rotary enter delivery connection, counting mechanism; Described counterforce device is connected with described fuselage by spline and can not relatively moves; Described driving mechanism is connected with described sliding machine body and can relatively rotates; Described Universal rotary enters delivery connection and is connected to described fuselage by described counting mechanism; When hydraulic oil enters oil pocket that delivery connection arrives described fuselage once through described Universal rotary, the once work of described hydraulic torque tightening machine of record automatically of described counting mechanism.Wherein, fuselage is whole hydraulic torque tightening machine executing agency.
Described counterforce device is connected with described fuselage by transition spline housing, and described counterforce device is coaxial or described counterforce device is coaxial with the oil pocket of described fuselage with described driving mechanism.
Bottom and described counting mechanism that described Universal rotary enters delivery connection have spacer pin, when described Universal rotary enters the spacer pin of delivery connection and the collision of the spacer pin of described counting mechanism, limit described Universal rotary and enter being rotated further of delivery connection, making described Universal rotary enter delivery connection can only rotate at most and be less than 360 degree, then essential toward revolution, with guarantee fuel-displaced enter delivery connection inner seal rings can be because of leakage of oil after being wound around.
When described counterforce device and described driving mechanism are coaxial, the inside of described counterforce device has hexagon or dodecagonal endoporus, for coordinating the shape of counter-force fulcrum.
When the oil pocket of described counterforce device and described fuselage is coaxial, described counterforce device has the button of described counterforce device Quick release from described fuselage.
A hoodle locked mechanism is contained in the end of described driving mechanism, and while normally using, hoodle evagination fixes on described driving mechanism locking on described fuselage, can not come off; When pressing the button of end, hoodle caves in, and described driving mechanism can be separated from described fuselage.
Described counting mechanism has one for advancing the valve piston of described counting mechanism counting work.
Described counting mechanism has a counter of counting work under described valve piston effect.
Compared with prior art, the beneficial effects of the utility model are:
The bolt of situation or the problem of tightening of nut that the hydraulic torque tightening machine of this utility model adopts unique counterforce structure design bolt that realization need to be tightened like a cork or nut side can not find counter-force fulcrum; Adopt unique driving mechanism design, avoided dexterously the spline of hydraulic torque tightening machine driving shaft to cause breakage problem to square head transition structure or in the middle design of beating fabrication hole of square axis; Adopt and pass in and out uniquely oily joint design, hydraulic oil passes in and out into the unconfined rotation of delivery connection and causes the hydraulic fluid leak problem after seal is wound around to be solved effectively; Adopt accurate counting mechanism design, can write down the number of times of the actual use of hydraulic torque tightening machine, the torsional strenght using according to reality is when arriving parts design access times, in the situation that also not damaging, parts just replace in advance fragile part, avoid hydraulic torque tightening machine in use to rupture suddenly and cause equipment and personnel injury, having solved and go up both at home and abroad existing moment of torsion tightening tool and equipment these difficult problems of existence always in actual use work at present.
Accompanying drawing explanation
Fig. 1 is the structural representation of the hydraulic torque tightening machine of embodiment 1;
Fig. 2 is the decomposing schematic representation of the hydraulic torque tightening machine of embodiment 1;
Fig. 3 is the structural representation of counterforce device in the hydraulic torque tightening machine of embodiment 1
Fig. 4 is the decomposition texture schematic diagram of counterforce device in the hydraulic torque tightening machine of embodiment 1;
Fig. 5 is the structural representation of driving mechanism in the hydraulic torque tightening machine of embodiment 1;
Fig. 6 is the decomposition texture schematic diagram of driving mechanism in the hydraulic torque tightening machine of embodiment 1;
Fig. 7 is the structural representation that in the hydraulic torque tightening machine of embodiment 1, Universal rotary enters delivery connection;
Fig. 8 is the decomposition texture schematic diagram that in the hydraulic torque tightening machine of embodiment 1, Universal rotary enters delivery connection;
Fig. 9 is the structural representation of counting mechanism in the hydraulic torque tightening machine of embodiment 1;
Figure 10 is the decomposition texture schematic diagram of counting mechanism in the hydraulic torque tightening machine of embodiment 1;
Figure 11 is the structural representation of the hydraulic torque tightening machine of embodiment 2;
Figure 12 is the decomposition texture schematic diagram of the hydraulic torque tightening machine of embodiment 2;
Figure 13 is the structural representation of driving mechanism in the hydraulic torque tightening machine of embodiment 2;
Figure 14 is the decomposition texture schematic diagram of driving mechanism in the hydraulic torque tightening machine of embodiment 2;
Figure 15 is the structural representation of counterforce device in the hydraulic torque tightening machine of embodiment 2;
Figure 16 is the decomposition texture schematic diagram of counterforce device in the hydraulic torque tightening machine of embodiment 2.
Symbol description:
1,8 counterforce devices; 2 driving mechanisms; 3 fuselages; 4 Universal rotaries enter delivery connection; 5 counting mechanisms; 6,55 driving mechanisms; 7 fuselages; 9 counter-force sleeves; 10 locking rings; 11 drive sleeve; 12 locking pins; 13 excessive gear rings; 14 locking ring shifting blocks; 15 shifting block screws; 16 counter-force gear rings; 17 driving shafts; 18 hoodles; 19,34,50 springs; 20,47 buttons; 21 screw pins; 22 blocks; 23 left-handed transfer ears; 24,49 screws; 25 split pins; 26 pressure-pads; 27 rotary bodies; 28 chock plug screws; 29 dextrorotation transfer ears; 30 spacer pins; 31 counting bodies; 32 sealing rings; 33 valve pistons; 35 nut caps; 36 counters; 37 stop screws; 38 sealing rings; 39 cover plates; 40 driving shafts; 41 hoodles; 42 springs; 43 buttons; 44 snap rings; 45 counter-force arm; 46 split pins; 48 fixture blocks; 51 spats; 52 split pins.
The specific embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present utility model is further described in detail, but should limit protection domain of the present utility model with this.
Embodiment 1
As illustrated in fig. 1 and 2, the hydraulic torque tightening machine of the present embodiment comprises: counterforce device 1, driving mechanism 2, fuselage 3, Universal rotary enter delivery connection 4, counting mechanism 5.
As shown in Figures 3 and 4, counterforce device 1 is formed by connecting by counter-force sleeve 9, locking ring 10, drive sleeve 11, locking pin 12, excessive gear ring 13, locking ring shifting block 14, shifting block screw 15.
As illustrated in Figures 5 and 6, driving mechanism 2 is formed by connecting by counter-force gear ring 16, driving shaft 17, hoodle 18, spring 19, button 20, screw pin 21, block 22.
As shown in FIG. 7 and 8, Universal rotary enters delivery connection 4 and is formed by connecting by left-handed transfer ear 23, screw 24, split pin 25, pressure-pad 26, rotary body 27, chock plug screw 28, dextrorotation transfer ear 29.
As shown in Figures 9 and 10, counting mechanism 5 is formed by connecting by spacer pin 30, counting body 31, sealing ring 32, valve piston 33, spring 34, nut cap 35, counter 36, stop screw 37, sealing ring 38, cover plate 39.
Wherein, counterforce device 1, by transition spline housing 16, is connected with fuselage 3 in the position coaxial with driving mechanism 2, and driving mechanism 2 is slidably connected with fuselage 3, and driving mechanism 2 can produce rotatablely moving of relative and fuselage 2 under the ratchet mechanism of fuselage 3 inside drives; While driving drive sleeve 11 rotating nuts, the counter-force sleeve 9 on counterforce device 1 to hold the counter-force fulcrum pad below nut when driving shaft 17 rotates, do not turn with fuselage 3 maintenances, play the effect of counter-force; Hoodle 18 on driving mechanism 2 protrudes under normal circumstances and is stuck on fuselage 3, can not get loose, but can mutually rotate freely; Universal rotary enters delivery connection 4 and is connected with counting mechanism 5 by rotary body 27, according to the direction of extraneous oil pipe, can around counting body 31 rotation of counting mechanism 5, be less than 360 degree and in axial 178 degree rotations in radial direction, past same direction rotation more just when being contained in Universal rotary and entering spacer pin on delivery connection 4 and encounter with the spacer pin of counting mechanism 5; Counting mechanism 5 is fixed by screws on fuselage 3, when hydraulic oil has while flowing to fuselage 3 into delivery connection 4 from turnover, when hydraulic oil need be counted body 31 through counting mechanism 5, valve piston 33 will be given 36 1 strokes of counter, then counter 36 numeral of will beating, shows that the work of hydraulic torque tightening machine crosses an action.Through counter 5, from Universal rotary, enter the oil of turnover repeatedly that delivery connection 4 flows to fuselage 3, counting mechanism 5 is just counted repeatedly, to reach the real work number of times that records hydraulic torque tightening machine.
Embodiment 2
As shown in FIG. 11 and 12, the hydraulic torque tightening machine of the present embodiment comprises: Universal rotary enters delivery connection 4, counting mechanism 5, driving mechanism 6, fuselage 7, counterforce device 8.
As shown in Figure 13 and 14, driving mechanism 6 is formed by connecting by driving shaft 40, hoodle 41, spring 42, button 43, snap ring 44.
As shown in Figure 15 and 16, counterforce device 8 is formed by connecting by counter-force arm 45, split pin 46, button 47, fixture block 48, screw 49, spring 50, spats 51, split pin 52.
Wherein, counterforce device 8 is directly connected on fuselage 7 by spline, and while normally working, fixture block 48 firmly must be stuck on the draw-in groove of fuselage 7 under the elastic force effect of spring 50; But when button 47 is pressed, fixture block 48 is thrown off the draw-in groove of fuselage 7, and counterforce device 8 just can take off from fuselage 7.Driving mechanism 6 connects and is slidably connected with fuselage 3, and driving mechanism 6 can produce rotatablely moving of relative and fuselage 7 under the ratchet mechanism of fuselage 7 inside drives; When driving shaft 40 rotates, drive drive sleeve rotating nut, when the spats 51 of the counter-force arm 45 on counterforce device 8 is close to fulcrum, do not turn with fuselage 3 maintenances, play the effect of counter-force; Hoodle 41 on driving mechanism 6 protrudes under normal circumstances and is stuck on fuselage 7, can not get loose, but can mutually rotate freely; Universal rotary enters delivery connection 4 and is connected with counting mechanism 5 by rotary body 27, according to the direction of extraneous oil pipe, can around counting body 31 rotation of counting mechanism 5, be less than 360 degree and in axial 178 degree rotations in radial direction, past same direction rotation more just when being contained in Universal rotary and entering spacer pin on delivery connection 4 and encounter with the spacer pin 30 of counting mechanism 5; Counting mechanism 5 is fixed by screws on fuselage 3, when hydraulic oil has while flowing to fuselage 3 into delivery connection 4 from turnover, when hydraulic oil need be counted body 31 through counting mechanism 5, valve piston 33 will be given 36 1 strokes of counter, then counter 36 numeral of will beating, shows that the work of hydraulic torque tightening machine crosses an action.Through counter 5, from Universal rotary, enter the oil of turnover repeatedly that delivery connection 4 flows to fuselage 3, counting mechanism 5 is just counted repeatedly, to reach the real work number of times that records hydraulic torque tightening machine.
This utility model hydraulic torque tightening machine can be by also producing the utility model hydraulic torque tightening machine of specification model in different size in the situation that not leaving the utility model spirit by changing part Machine Design or specification size.
The foregoing is only preferred embodiment of the present utility model, be not used for limiting practical range of the present utility model.Under any, in technical field, have and conventionally know the knowledgeable, within not departing from spirit and scope of the present utility model, when doing various limits, move and retouching, therefore protection domain of the present utility model is when being as the criterion depending on claims institute confining spectrum.
Claims (9)
1. a hydraulic torque tightening machine, is characterized in that, comprises counterforce device, driving mechanism, fuselage, enters delivery connection, counting mechanism; Described counterforce device is connected with described fuselage by spline and can not relatively moves; Described driving mechanism is connected with described sliding machine body and can relatively rotates; Describedly enter delivery connection and be connected to described fuselage by described counting mechanism; When hydraulic oil through described in enter oil pocket that delivery connection arrives described fuselage once, the once work of described hydraulic torque tightening machine of record automatically of described counting mechanism.
2. hydraulic torque tightening machine according to claim 1, it is characterized in that, described counterforce device is connected with described fuselage by transition spline housing, and described counterforce device is coaxial or described counterforce device is coaxial with the oil pocket of described fuselage with described driving mechanism.
3. hydraulic torque tightening machine according to claim 1, is characterized in that, described in enter directly mechanism of delivery connection, can be also that Universal rotary enters delivery connection.
4. hydraulic torque tightening machine according to claim 3, it is characterized in that, bottom and described counting mechanism that described Universal rotary enters delivery connection have spacer pin, when described Universal rotary enters the collision of the spacer pin of delivery connection and the spacer pin of described counting mechanism, limit described Universal rotary and enter being rotated further of delivery connection, make described Universal rotary enter delivery connection and can only rotate at most and be less than 360 degree.
5. hydraulic torque tightening machine according to claim 2, it is characterized in that, when described counterforce device and described driving mechanism are coaxial, the inside of described counterforce device has the polygon endoporus of other shapes such as hexagon or dodecagon, be used for coordinating counter-force fulcrum, to play counter-force effect.
6. hydraulic torque tightening machine according to claim 2, is characterized in that, when the oil pocket of described counterforce device and described fuselage is coaxial, described counterforce device has the button of described counterforce device Quick release from described fuselage.
7. hydraulic torque tightening machine according to claim 1, is characterized in that, a hoodle locked mechanism is contained in the end of described driving mechanism, and while normally using, hoodle evagination fixes on described driving mechanism locking on described fuselage, can not come off; When pressing the button of end, hoodle caves in, and described driving mechanism can be separated from described fuselage.
8. hydraulic torque tightening machine according to claim 1, is characterized in that, described counting mechanism has one for advancing the valve piston of described counting mechanism counting work.
9. hydraulic torque tightening machine according to claim 8, is characterized in that, described counting mechanism has a counter of counting work under described valve piston effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066711.4U CN203765539U (en) | 2014-02-14 | 2014-02-14 | Hydraulic torque tightening machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420066711.4U CN203765539U (en) | 2014-02-14 | 2014-02-14 | Hydraulic torque tightening machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203765539U true CN203765539U (en) | 2014-08-13 |
Family
ID=51282781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420066711.4U Expired - Fee Related CN203765539U (en) | 2014-02-14 | 2014-02-14 | Hydraulic torque tightening machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203765539U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878579A (en) * | 2014-03-28 | 2014-06-25 | 李圣用 | Counting mechanism of hydraulic tightening machine |
| CN108068044A (en) * | 2017-11-07 | 2018-05-25 | 武汉科技大学 | A kind of allen wrench |
-
2014
- 2014-02-14 CN CN201420066711.4U patent/CN203765539U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103878579A (en) * | 2014-03-28 | 2014-06-25 | 李圣用 | Counting mechanism of hydraulic tightening machine |
| CN108068044A (en) * | 2017-11-07 | 2018-05-25 | 武汉科技大学 | A kind of allen wrench |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20220214 |