CN205465923U - Cavity formula hydraulic torque spanner - Google Patents
Cavity formula hydraulic torque spanner Download PDFInfo
- Publication number
- CN205465923U CN205465923U CN201620043993.5U CN201620043993U CN205465923U CN 205465923 U CN205465923 U CN 205465923U CN 201620043993 U CN201620043993 U CN 201620043993U CN 205465923 U CN205465923 U CN 205465923U
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- China
- Prior art keywords
- wrench body
- piston
- hydraulic torque
- spring
- ratchet
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- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
Abstract
The utility model discloses a cavity formula hydraulic torque spanner, including wrench body and set up the ratchet on wrench body, the top of ratchet is provided with the pawl, and wrench body's one end is provided with the planking, and wrench body's bottom is provided with and increases the spring, and the top that increases the spring is provided with closes the spring, wrench body's the built -in piston that is provided with, the inside of piston is provided with the piston rod, the top of piston is provided with the hydro -cylinder, wrench body's top is provided with the joint, connect with the piston between be connected through inner structure, this kind of cavity formula hydraulic torque spanner, piston rod special treatment, it is wear -resisting, reduce the wearing and tearing of aluminium system hydro -cylinder, improve aluminium system hydro -cylinder life greatly, special design's aluminium system casing appearance, the instrument of having guaranteed can use for a long time, has prolonged life, can not be because of tired fracture, accurate serration structural design, extremely phenomenon of card can not appear, the design of reinforcing round pin axle improves the working head atress, the unbalance loading can not appear, extension spanner life.
Description
Technical field
This utility model relates to a kind of hollow type hydraulic torque wrench.
Background technology
Hydraulic torque wrench refers to output and sets a kind of bolt-tightening tool of moment of torsion, belongs to high-pressure and hydraulic instrument, extensively
It is applied to overhaul of the equipments and the installation in multiple heavy chemical industry field.Hydraulic torque wrench has drive shaft and hollow type two kinds；Existing
Hollow type hydraulic torque wrench have lightweight, output precision is high, it is strong at crawl space operation, accommodative ability of environment to be prone to
Feature.
But the most existing hollow type hydraulic torque wrench there is also the problem that torque consumption weight is smaller, supernatural power often occurs
Situation about but not stressing, is easier situation slip teeth occur；The most existing hollow type hydraulic torque wrench is due to frame for movement
, often there is the situation that abrasion is bigger in rhythm, and service life is shorter, stuck situation easily occurs.
Utility model content
The technical problems to be solved in the utility model is the defect overcoming prior art, it is provided that a kind of hollow type hydraulic torque wrench,
It is greatly improved aluminum oil cylinder service life, extends service life.
In order to solve above-mentioned technical problem, this utility model provides following technical scheme:
This utility model one hollow type hydraulic torque wrench, including wrench body and be arranged on the ratchet in described wrench body,
The top of described ratchet is provided with ratchet, and one end of described wrench body is provided with outside plate, and the bottom of described wrench body is provided with
Increasing the spring, the top in described increasing spring is provided with conjunction spring, the built-in piston that is provided with of described wrench body, and the inside of described piston is arranged
Having piston rod, the top of described piston to be provided with oil cylinder, the top of described wrench body is provided with joint, and described joint is with described
Connected by internal structure between piston.
As a kind of optimal technical scheme of the present utility model, the entirety of described wrench body is waist drum shape.
As a kind of optimal technical scheme of the present utility model, described piston rod is bulb floating piston bar.
As a kind of optimal technical scheme of the present utility model, described oil cylinder is the described oil cylinder that aluminum material is made, described spanner
The epidermis of body is the epidermis that aluminum material is made.
This utility model is reached to provide the benefit that: this kind of hollow type hydraulic torque wrench, and piston rod special handling is wear-resisting,
Reduce the abrasion of aluminum oil cylinder, be greatly improved aluminum oil cylinder service life；The aluminium casing profile of particular design, it is ensured that instrument can
Long-time use, extends service life, will not ftracture because of tired；Accurate serration structure design, do not have stuck existing
As；Strengthen bearing pin design, improve work head stress, do not have a unbalance loading, extend spanner service life；Waist-drum-shaped configuration design,
Work head is convenient with unit head combination；Bulb floating piston bar, unbalance loading is less.
Accompanying drawing explanation
Accompanying drawing is used for providing being further appreciated by of the present utility model, and constitutes a part for description, with of the present utility model
Embodiment is used for explaining this utility model together, is not intended that restriction of the present utility model.In the accompanying drawings:
Fig. 1 is cross-sectional view of the present utility model；
Fig. 2 is side structure schematic diagram of the present utility model；
Fig. 3 is backsight structural representation of the present utility model；
In figure: 1, wrench body；2, ratchet；3, outside plate；4, piston rod；5, piston；6, joint；7, oil cylinder；8、
Ratchet；9, the spring is increased；10, close the spring.
Detailed description of the invention
Below in conjunction with accompanying drawing, preferred embodiment of the present utility model is illustrated, it will be appreciated that described herein be preferable to carry out
Example is merely to illustrate and explains this utility model, is not used to limit this utility model.
Embodiment 1
As Figure 1-3, a kind of hollow type hydraulic torque wrench, including wrench body 1 and be arranged on the spine in wrench body 1
Wheel 8, the top of ratchet 8 is provided with ratchet 2, and one end of wrench body 1 is provided with outside plate 3, and the bottom of wrench body 1 is arranged
Having the increasing spring 9, the top increasing the spring 9 is provided with the conjunction spring 10, and the built-in piston 5 that is provided with of wrench body 1, the inside of piston 5 sets
Being equipped with piston rod 4, the top of piston 5 is provided with oil cylinder 7, and the top of wrench body 1 is provided with joint 6, joint 6 and piston
Connected by internal structure between 5.
The entirety of wrench body 1 is waist drum shape.Piston rod 4 is bulb floating piston bar 4.Oil cylinder 7 is made for aluminum material
Oil cylinder 7, the epidermis of wrench body 1 is the epidermis that aluminum material is made；Waist-drum-shaped configuration design, work head and unit head group
Close convenient；Bulb floating piston bar 4, unbalance loading is less；The oil cylinder 7 of aluminum and wrench body 1 epidermis；Ensure that work
Tool can use for a long time, extends service life, will not ftracture because of tired.
Thering is provided power by hydraulic pump, hydraulic fluid pressure promotes piston 5 to advance, and piston rod 4 moves forward simultaneously；Piston rod 4
Being connected by bearing pin with stressed plate so that ratchet 2 engages with hook tooth, driving pawl 8 rotates；Ratchet 8 directly drives nut,
Nut and ratchet 8 are rotated simultaneously；Piston 5 moves to extreme position, and hydraulic pump commutates, and drives piston 5 to retreat, and drives
Piston rod 4, ratchet 2 are regained, and move back and forth, pretension bolt.
This kind of hollow type hydraulic torque wrench, piston rod 4 special handling, wear-resisting, reduce aluminum oil cylinder 7 and wear and tear, be greatly improved
Aluminum oil cylinder 7 service life；The aluminium casing profile of particular design, it is ensured that instrument can use for a long time, extends the use longevity
Life, will not ftracture because of tired；Accurate serration structure designs, does not haves stuck phenomenon；Strengthen bearing pin design, improve work
Make head stress, do not have a unbalance loading, extend spanner service life；Waist-drum-shaped configuration design, work head combines more with unit head
Convenient；Bulb floating piston bar 4, unbalance loading is less.
Last it is noted that the foregoing is only preferred embodiment of the present utility model, it is not limited to this practicality new
Type, although this utility model being described in detail with reference to previous embodiment, for a person skilled in the art, its
Still the technical scheme described in foregoing embodiments can be modified, or wherein portion of techniques feature is carried out equivalent replace
Change.All within spirit of the present utility model and principle, any modification, equivalent substitution and improvement etc. made, should be included in
Within protection domain of the present utility model.
Claims (4)
1. a hollow type hydraulic torque wrench, including wrench body (1) and be arranged on the ratchet in described wrench body (1)
(8), the top of described ratchet (8) is provided with ratchet (2), and one end of described wrench body (1) is provided with outside plate (3),
The bottom of described wrench body (1) is provided with increasing spring (9), and the described top increasing the spring (9) is provided with conjunction spring (10), and it is special
Levy and be, the built-in piston (5) that is provided with of described wrench body (1), described piston (5) be internally provided with piston rod (4),
The top of described piston (5) is provided with oil cylinder (7), and the top of described wrench body (1) is provided with joint (6), described
It is connected by internal structure between joint (6) with described piston (5).
A kind of hollow type hydraulic torque wrench the most according to claim 1, it is characterised in that described wrench body (1)
Overall in waist drum shape.
A kind of hollow type hydraulic torque wrench the most according to claim 1, it is characterised in that described piston rod (4) is ball
Head floating piston bar (4).
A kind of hollow type hydraulic torque wrench the most according to claim 3, it is characterised in that described oil cylinder (7) is aluminum
The described oil cylinder (7) that material is made, the epidermis of described wrench body (1) is the epidermis that aluminum material is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043993.5U CN205465923U (en) | 2016-01-12 | 2016-01-12 | Cavity formula hydraulic torque spanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620043993.5U CN205465923U (en) | 2016-01-12 | 2016-01-12 | Cavity formula hydraulic torque spanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205465923U true CN205465923U (en) | 2016-08-17 |
Family
ID=56670559
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620043993.5U Active CN205465923U (en) | 2016-01-12 | 2016-01-12 | Cavity formula hydraulic torque spanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205465923U (en) |
-
2016
- 2016-01-12 CN CN201620043993.5U patent/CN205465923U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |