CN110294065A - Load test tooling - Google Patents
Load test tooling Download PDFInfo
- Publication number
- CN110294065A CN110294065A CN201910358446.4A CN201910358446A CN110294065A CN 110294065 A CN110294065 A CN 110294065A CN 201910358446 A CN201910358446 A CN 201910358446A CN 110294065 A CN110294065 A CN 110294065A
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- China
- Prior art keywords
- cylinder body
- load test
- connector
- piston rod
- connecting hole
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B71/00—Designing vessels; Predicting their performance
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of load test toolings, belong to testing equipment field.Including oil cylinder, piston rod, connector, the first connector and the second connector, oil cylinder includes cylinder body and cylinder head, one end of cylinder body is connect with cylinder head, the other end of cylinder body seals, cylinder head is equipped with the first connecting hole for installing the first connector, and the first connecting hole is arranged along the axis direction perpendicular to cylinder body；One end of piston rod is arranged in cylinder body, cylinder interior is divided into rod chamber and rodless cavity, the other end that the other end of piston rod passes through cylinder body is arranged outside cylinder body, the other end of connector and piston rod is detachably connected, connector is equipped with the second connecting hole for installing the second connector, and the second connecting hole is arranged along the axis direction perpendicular to cylinder body；Cylinder body is equipped with the first hydraulic fluid port and the second hydraulic fluid port, and the first hydraulic fluid port is connected to rod chamber, and the second hydraulic fluid port is connected to rodless cavity.The test efficiency of load test can be improved in load test tooling provided by the invention, while reducing noise pollution.
Description
Technical field
The present invention relates to testing equipment field, in particular to a kind of load test tooling.
Background technique
As the competition of market of ship is more and more fierce, the demand of the marine accessorial equipment of high quality is growing, ship
Corollary equipment is required to carry out delivery test before delivering shipyard, and load test is one of most important one pilot project, can
Whether the performance of verifying equipment meets design requirement.
Existing load test equipment is made of motor, pump control device, hydraulic valve bank, mechanical linkage etc., wherein
Mechanical linkage is connect with device to be tested, and the electric energy of motor is converted hydraulic energy by pump control device, and passes through hydraulic valve
Hydraulic energy transfer is mechanical energy by group and mechanical linkage, is loaded with simulated seawater, is loaded to treat experimental rig
Test.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems:
Existing load test device structure is more complex, and energy transfer process is more, causes test efficiency lower, and electronic
Chance generates noise pollution.
Summary of the invention
The embodiment of the invention provides a kind of load test toolings, and the test efficiency of load test can be improved, subtract simultaneously
Few noise pollution.The technical solution is as follows:
The present invention provides a kind of load test tooling, the load test tooling includes oil cylinder, piston rod, connector, use
In the first connector and the second connector that connect with device to be tested, the oil cylinder includes cylinder body and cylinder head, the cylinder body
One end is connect with the cylinder head, and the other end sealing of the cylinder body, the cylinder head is equipped with for installing first connector
The first connecting hole, first connecting hole is arranged along the axis direction perpendicular to the cylinder body；One end of the piston rod is set
It sets in the cylinder body, the cylinder interior is divided into rod chamber and rodless cavity, the other end of the piston rod passes through described
The other end of cylinder body is arranged outside the cylinder body, and the other end of the connector and the piston rod is detachably connected, the connector
It is equipped with the second connecting hole for installing second connector, second connecting hole is along the axis perpendicular to the cylinder body
Direction setting；The cylinder body is equipped with the first hydraulic fluid port and the second hydraulic fluid port, and first hydraulic fluid port is connected to the rod chamber, and described the
Two hydraulic fluid ports are connected to the rodless cavity.
Further, the other end of the cylinder body is equipped with end cap, cap connections and the first dynamic seal, the end cap set
It is located at outside the other end of the piston rod, the end cap connects by the way that the other end of the cap connections and the cylinder body is fixed
It connects, first dynamic seal is arranged between the end cap and the other end of the piston rod.
Further, dustband is additionally provided between the end cap and the other end of the piston rod.
Further, the other end of the cylinder body is equipped with an annular groove, and the load test tooling further includes support base
And guide sleeve, the guide sleeve are set in outside the other end of the piston rod, the support base is set in outside the guide sleeve, and
One end of the support base is equipped with the annular protrusion to match with the annular groove.
Further, the first static seal is equipped between the support base and the end cap.
Further, the second static seal is equipped between the support base and the cylinder body.
Further, it is interference fitted between the support base and the guide sleeve.
Further, the second dynamic seal is equipped between the piston rod and the cylinder body.
Further, the load test tooling further includes the first vent valve and the second vent valve, first vent valve
One end of the cylinder body is set and is connected to the rod chamber, the other end of the cylinder body is arranged in simultaneously in second vent valve
It is connected to the rodless cavity.
Further, first connector and second connector are pin shaft, first connecting hole and described the
Two connecting holes are pin shaft connecting hole.
Technical solution provided in an embodiment of the present invention has the benefit that
One end of device to be tested is connect with cylinder head by the first connector, by the second connector by device to be tested
The other end and piston rod the other end connect, the first hydraulic fluid port and the second hydraulic fluid port are connect with fuel tank then, set the pressure of fuel tank
Trying hard to keep, it is fixed to keep steady, and is loaded with simulated seawater.When device to be tested provides pulling force, connector can transmit torque, pull piston rod, make
The one end for obtaining piston rod is mobile towards rod chamber direction in cylinder body, forms vacuum, the second hydraulic fluid port meeting in rodless cavity at this time
One end of the hydraulic oil or piston rod that are automatically drawn into fuel tank is mobile towards rodless cavity direction in cylinder body, has at this time
Vacuum is formed in rod cavity, the first hydraulic fluid port can be automatically drawn into the hydraulic oil in fuel tank, then be full of hydraulic oil in cylinder body always.Fuel tank is only
It need to keep steady pressure and seal, not need additional power source, stable pressure load can be provided for device to be tested, from
And verify the performance of device to be tested.And experimental rig provided by the invention can be directly fixedly connected with device to be tested, no
Need to be fixed on other positions, it is easy to use.Compared with tooling is realized in existing load, structure is simple, and ability was transmitted
Journey is less, and it is convenient to operate, and does not need while improving the test efficiency of load test, and to be reduced and made an uproar using motor
Sound pollution.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of load test tooling provided in an embodiment of the present invention；
Fig. 2 is a kind of external structure schematic diagram of oil cylinder provided in an embodiment of the present invention.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Fig. 1 is a kind of structural schematic diagram of load test tooling provided in an embodiment of the present invention, as shown in Figure 1, the load
Test tool includes oil cylinder 10, piston rod 20, connector 30, the first connector for connecting with device to be tested and the second connection
Part (not shown).
Oil cylinder 10 includes cylinder body 11 and cylinder head 12, and one end of cylinder body 11 is connect with cylinder head 12, the other end sealing of cylinder body 11,
Cylinder head 12 is equipped with the first connecting hole 12a for installing the first connector, and the first connecting hole 12a is along the axis perpendicular to cylinder body 11
The setting of line direction.One end of piston rod 20 is arranged in cylinder body 11, will be divided into rod chamber S1 and rodless cavity S2 inside cylinder body 11,
The other end that the other end of piston rod 20 passes through cylinder body 11 is arranged outside cylinder body 11.Connector 30 and the other end of piston rod 20 are removable
Connection is unloaded, connector 30 is equipped with the second connecting hole 30a for installing the second connector, and the second connecting hole 30a is along perpendicular to cylinder
The axis direction of body 11 is arranged.
Fig. 2 is a kind of external structure schematic diagram of oil cylinder provided in an embodiment of the present invention, as shown in Fig. 2, setting on cylinder body 11
There are the first hydraulic fluid port 11a and the second hydraulic fluid port 11b, the first hydraulic fluid port 11a is connected to rod chamber S1, and the second hydraulic fluid port 11b and rodless cavity S2 connect
It is logical.
One end of device to be tested is connect by the embodiment of the present invention by the first connector with cylinder head, passes through the second connector
The other end of the other end of device to be tested and piston rod is connected, then connect the first hydraulic fluid port and the second hydraulic fluid port with fuel tank,
The pressure remained steady for setting fuel tank, is loaded with simulated seawater.When device to be tested provides pulling force, connector can transmit torque,
Piston rod is pulled, so that one end of piston rod is mobile towards rod chamber direction in cylinder body, is formed in rodless cavity at this time true
Sky, the second hydraulic fluid port can be automatically drawn into one end of the hydraulic oil in fuel tank or piston rod in cylinder body towards side where rodless cavity
To movement, vacuum is formed in rod chamber at this time, the first hydraulic fluid port can be automatically drawn into the hydraulic oil in fuel tank, then be full of always in cylinder body
Hydraulic oil.Fuel tank need to only keep steady pressure and seal, and not need additional power source, can provide stabilization for device to be tested
Pressure load, to verify the performance of device to be tested.And experimental rig provided by the invention can directly with dress to be tested
It sets and is fixedly connected, do not need to be fixed on other positions, it is easy to use.Compared with tooling is realized in existing load, structure letter
Single, ability transmittance process is less, and it is convenient to operate, and does not need improving the same of the test efficiency of load test using motor
When, and reduce noise pollution.
In the present embodiment, the first connector and the second connector can be pin shaft, the connection of the first connecting hole 12a and second
Hole 30a can be pin shaft connecting hole.It connects, is conducive to fast between device to be tested and load test tooling by using pin shaft
Fast installing and dismounting, to be conducive to improve the test efficiency of load test.
Optionally, connector 30 is threadedly coupled with the other end of piston rod 20, to guarantee between connector 30 and piston rod 20
Connect tightness.
It should be noted that in the present embodiment, the work of the various sizes of connector 30 of replacement or different length can be passed through
Stopper rod 20, so that load testing apparatus provided by the invention can be used in carrying out load examination to various sizes of device to be tested
It tests.
Further, the other end of cylinder body 11 is equipped with end cap 13, cap connections 14 and the first dynamic seal 15, end cap 13
It being set in outside the other end of piston rod 20, end cap 13 is fixedly connected by cap connections 14 with the other end of cylinder body 11, and first
Dynamic seal 15 is arranged between end cap 13 and the other end of piston rod 20.
Illustratively, end cap 13 is annular slab, and the middle part of end cap 13 is equipped with to match with the other end of the piston rod 20
Through-hole, end cap 13 is equipped with multiple along its circumferentially equidistant spaced apart threaded hole, and cap connections 14 are multiple bolts, more
A bolt passes through the threaded hole on end cap 13, is fixedly connected with cylinder body 11.
Optionally, the first dynamic seal 15 can be that y-type seal ring can be prevented by the way that the first dynamic seal 15 is arranged
Hydraulic oil is revealed between end cap 13 and piston rod 20.
Optionally, end cap 13 can be made of stainless steel.
Optionally, dustband 16 is additionally provided between end cap 13 and the other end of piston rod 20.It can be with by setting dustband
It prevents dust from entering in cylinder body 11, pollutes cylinder body 11.
Further, the second dynamic seal 17 is equipped between piston rod 20 and cylinder body 11.
Optionally, the second dynamic seal 17 can be y-type seal ring, can will have bar by the way that the second dynamic seal 17 is arranged
Chamber S1 and rodless cavity S2 are mutually isolated.
Further, the other end of cylinder body 11 is equipped with an annular groove (not shown), and load test tooling further includes
Support base 41 and guide sleeve 42, guide sleeve 42 are set in outside the other end of piston rod 20, and support base 41 is set in outside guide sleeve 42,
And one end of support base 41 is equipped with the annular protrusion 411 to match with annular groove.By being arranged annular protrusion 411 in annular
In groove, support base 41 can be limited along the axial movement of cylinder body 11, guide sleeve 42 can play guiding role, with support base 41
Cooperation, can limit the moving radially along cylinder body 11 of piston rod 20, make piston rod 20 along the axial movement of cylinder body 11.
In the present embodiment, it is interference fitted between support base 41 and guide sleeve 42.Guide sleeve 42 is copper casting, utilizes heat expansion
Guide sleeve 42 is inserted in support base 41 by the principle of shrinkage.To prevent thermal deformation, can be carried out again after cold set completion stress removal
The finishing of internal diameter of guide sleeve 42.
Optionally, support base 41 can be made of stainless steel.
Further, the first static seal 51 is equipped between support base 41 and end cap 13.Between support base 41 and cylinder body 11
Equipped with the second static seal 52.
Optionally, the first static seal 51 and the second static seal 52 can be O-ring seal.
Further, load test tooling further includes the first vent valve 61 and the second vent valve 62, and the first vent valve 61 is set
Set one end in cylinder body 11 and be connected to rod chamber S1, the second vent valve 62 be arranged in the other end of cylinder body 11 and with rodless cavity S2
Connection.By the way that vent valve is arranged, mixed air in rod chamber S1 and rodless cavity S2 can be excluded.
In the present embodiment, the first vent valve 61 and the second vent valve 62 are arranged at the top of cylinder body 11.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of load test tooling, which is characterized in that the load test tooling includes oil cylinder (10), piston rod (20), connects
Head (30), the first connector and the second connector for connecting with device to be tested, the oil cylinder (10) includes cylinder body (11)
It is connect with one end of cylinder head (12), the cylinder body (11) with the cylinder head (12), the other end sealing of the cylinder body (11) is described
Cylinder head (12) is equipped with the first connecting hole (12a) for installing first connector, and first connecting hole (12a) is along vertical
Directly it is arranged in the axis direction of the cylinder body (11)；One end setting of the piston rod (20) is in the cylinder body (11), by institute
It states and is divided into rod chamber S1 and rodless cavity S2 inside cylinder body (11), the other end of the piston rod (20) passes through the cylinder body (11)
The other end setting the cylinder body (11) outside, the connector (30) and the other end of the piston rod (20) are detachably connected,
The connector (30) is equipped with the second connecting hole (30a) for installing second connector, second connecting hole (30a)
It is arranged along the axis direction perpendicular to the cylinder body (11)；The cylinder body (11) is equipped with the first hydraulic fluid port (11a) and the second hydraulic fluid port
(11b), first hydraulic fluid port (11a) are connected to the rod chamber S1, and second hydraulic fluid port (11b) and the rodless cavity S2 connect
It is logical.
2. load test tooling according to claim 1, which is characterized in that the other end of the cylinder body (11) is equipped with end cap
(13), cap connections (14) and the first dynamic seal (15), the end cap (13) are set in the another of the piston rod (20)
End is outer, and the end cap (13) is fixedly connected by the cap connections (14) with the other end of the cylinder body (11), and described the
One dynamic seal (15) is arranged between the end cap (13) and the other end of the piston rod (20).
3. load test tooling according to claim 2, which is characterized in that the end cap (13) and the piston rod (20)
The other end between be additionally provided with dustband (16).
4. load test tooling according to claim 2, which is characterized in that the other end of the cylinder body (11) is equipped with a ring
Connected in star, the load test tooling further include support base (41) and guide sleeve (42), and the guide sleeve (42) is set in described
Outside the other end of piston rod (20), the support base (41) is set in the guide sleeve (42) outside, and the support base (41)
One end is equipped with the annular protrusion (411) to match with the annular groove.
5. load test tooling according to claim 4, which is characterized in that the support base (41) and the end cap (13)
Between be equipped with the first static seal (51).
6. load test tooling according to claim 4, which is characterized in that the support base (41) and the cylinder body (11)
Between be equipped with the second static seal (52).
7. load test tooling according to claim 4, which is characterized in that the support base (41) and the guide sleeve
(42) it is interference fitted between.
8. described in any item load test toolings according to claim 1~7, which is characterized in that the piston rod (20) and institute
It states and is equipped with the second dynamic seal (17) between cylinder body (11).
9. described in any item load test toolings according to claim 1~7, which is characterized in that the load test tooling is also
Including the first vent valve (61) and the second vent valve (62), the one end of the first vent valve (61) setting in the cylinder body (11)
And be connected to the rod chamber S1, second vent valve (62) setting the cylinder body (11) the other end and with the no bar
Chamber S2 connection.
10. described in any item load test toolings according to claim 1~7, which is characterized in that first connector and institute
Stating the second connector is pin shaft, and first connecting hole (12a) and second connecting hole (30a) are pin shaft connecting hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358446.4A CN110294065B (en) | 2019-04-30 | 2019-04-30 | Load test tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910358446.4A CN110294065B (en) | 2019-04-30 | 2019-04-30 | Load test tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110294065A true CN110294065A (en) | 2019-10-01 |
| CN110294065B CN110294065B (en) | 2020-09-22 |
Family
ID=68026695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910358446.4A Active CN110294065B (en) | 2019-04-30 | 2019-04-30 | Load test tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110294065B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425586A (en) * | 2011-12-21 | 2012-04-25 | 徐州重型机械有限公司 | Hydraulic cylinder, hydraulic system and engineering machine |
| CN102619805A (en) * | 2012-04-27 | 2012-08-01 | 郑州宇通重工有限公司 | Hydraulic cylinder suitable for controlling plurality of hydraulic cylinders to extend sequentially |
| CN202381449U (en) * | 2011-12-21 | 2012-08-15 | 徐州重型机械有限公司 | Hydraulic cylinder, hydraulic system and engineering machinery |
| CN105114391A (en) * | 2015-08-25 | 2015-12-02 | 中国船舶重工集团公司第七一九研究所 | Sequential-action hydraulic cylinder |
| CN106194900A (en) * | 2016-08-30 | 2016-12-07 | 武汉理工大学 | A kind of hydraulic reciprocating seals dynamic property detection device and design |
| CN106499696A (en) * | 2016-12-28 | 2017-03-15 | 哈尔滨通用液压机械制造有限公司 | Enclosed self-locking oil cylinder |
| CN108871730A (en) * | 2018-07-27 | 2018-11-23 | 武汉船用机械有限责任公司 | A kind of load testing apparatus for propeller |
-
2019
- 2019-04-30 CN CN201910358446.4A patent/CN110294065B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102425586A (en) * | 2011-12-21 | 2012-04-25 | 徐州重型机械有限公司 | Hydraulic cylinder, hydraulic system and engineering machine |
| CN202381449U (en) * | 2011-12-21 | 2012-08-15 | 徐州重型机械有限公司 | Hydraulic cylinder, hydraulic system and engineering machinery |
| CN102619805A (en) * | 2012-04-27 | 2012-08-01 | 郑州宇通重工有限公司 | Hydraulic cylinder suitable for controlling plurality of hydraulic cylinders to extend sequentially |
| CN105114391A (en) * | 2015-08-25 | 2015-12-02 | 中国船舶重工集团公司第七一九研究所 | Sequential-action hydraulic cylinder |
| CN106194900A (en) * | 2016-08-30 | 2016-12-07 | 武汉理工大学 | A kind of hydraulic reciprocating seals dynamic property detection device and design |
| CN106499696A (en) * | 2016-12-28 | 2017-03-15 | 哈尔滨通用液压机械制造有限公司 | Enclosed self-locking oil cylinder |
| CN108871730A (en) * | 2018-07-27 | 2018-11-23 | 武汉船用机械有限责任公司 | A kind of load testing apparatus for propeller |
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| Publication number | Publication date |
|---|---|
| CN110294065B (en) | 2020-09-22 |
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