CN211602304U - Low-pressure sealing test device of multistage hydraulic oil cylinder - Google Patents
Low-pressure sealing test device of multistage hydraulic oil cylinder Download PDFInfo
- Publication number
- CN211602304U CN211602304U CN202020137141.9U CN202020137141U CN211602304U CN 211602304 U CN211602304 U CN 211602304U CN 202020137141 U CN202020137141 U CN 202020137141U CN 211602304 U CN211602304 U CN 211602304U
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- support
- multistage hydraulic
- oil cylinder
- hydraulic oil
- piston rod
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Abstract
The utility model provides a multistage hydraulic cylinder's low pressure seal test device, this multistage hydraulic cylinder's low pressure seal test device includes: a support; the hydraulic cylinder positioning mechanism comprises a support lug stop block and a piston rod baffle, wherein the support lug stop block is used for quickly mounting and positioning a support lug of the multistage hydraulic oil cylinder, the piston rod baffle is used for positioning an upper end piston of the multistage hydraulic oil cylinder, the support lug stop block is mounted at one end of the support, and the piston rod baffle is arranged at the other end of the support; and the mounting distance adjusting mechanism comprises a height adjusting screw rod and a height adjusting fixed plate, the height adjusting screw rod is mounted on the height adjusting fixed plate and is positioned at the other end of the support, and the piston rod baffle is mounted at the top end of the height adjusting screw. The utility model discloses in process of production, realized high efficiency, high-quality big batch experiment to the effect of using manpower sparingly has been reached.
Description
Technical Field
The utility model relates to a pneumatic cylinder test device, especially a low pressure seal test device for multistage hydraulic cylinder.
Background
The annual output of the hydraulic oil cylinder is huge, wherein the installation form of the multi-stage hydraulic cylinder is that an upper end piston rod is of a threaded structure, and a lower end cylinder barrel is of a support lug structure. In the prior art test work, two operators generally complete the installation of the hydraulic cylinder and the pressure seal test work. During the test, the hydraulic cylinder is directly pressurized, the multi-stage oil cylinder is gradually unfolded, the test can be completed in a long time, and the efficiency is very low.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to the above-mentioned defect of prior art, a low pressure seal test device for multistage hydraulic cylinder is provided.
In order to achieve the above object, the utility model provides a multistage hydraulic cylinder's low pressure seal test device, wherein, include:
a support;
the hydraulic cylinder positioning mechanism comprises a support lug stop block and a piston rod baffle, wherein the support lug stop block is used for mounting and positioning a support lug of the multistage hydraulic oil cylinder, the piston rod baffle is used for positioning a piston at the upper end of the multistage hydraulic oil cylinder, the support lug stop block is mounted at one end of the support, and the piston rod baffle is arranged at the other end of the support; and
the mounting distance adjusting mechanism comprises a height adjusting screw rod and a height adjusting fixed plate, the height adjusting screw rod is mounted on the height adjusting fixed plate and located at the other end of the support, and the piston rod baffle is mounted at the top end of the height adjusting screw.
The low-pressure sealing test device for the multistage hydraulic oil cylinder comprises a support, a plurality of pull rods and a plurality of support lugs, wherein the support comprises a bottom plate and the pull rods, two ends of the pull rods are respectively connected with the bottom plate and the height-adjusting fixed plate, and the support lug stop blocks are installed on the bottom plate.
The low-pressure sealing test device for the multistage hydraulic oil cylinder is characterized in that the pull rods are divided into a left pull rod group and a right pull rod group, each pull rod group comprises two pull rods which are vertically arranged and are parallel to each other, and the left pull rod group and the right pull rod group are parallel to each other and are arranged in a bilateral symmetry mode by taking the central line of the base plate as a symmetry center.
In the low-pressure sealing test device for the multistage hydraulic oil cylinder, two support lug check blocks are symmetrically arranged on the base plate and are respectively close to the pull rod group.
Foretell multistage hydraulic cylinder's low pressure seal test device, wherein, the journal stirrup dog includes the body and sets up installation department and fixed part on the body, the installation department is provided with a plurality of mounting holes, the fixed part include the open slot and to the circular arc groove that the installation department extends, the radian in circular arc groove with the diameter adaptation of multistage hydraulic cylinder's journal stirrup.
According to the low-pressure sealing test device of the multistage hydraulic oil cylinder, the piston rod baffle is provided with the fixing hole and the piston rod fixing groove, the piston rod fixing groove is a U-shaped structural groove, and a chamfer is arranged along the edge of the U-shaped structural groove.
The low-pressure sealing test device for the multistage hydraulic oil cylinder is characterized in that the mounting distance adjusting mechanism further comprises a screw rod supporting plate, the screw rod supporting plate is mounted between the height-adjusting fixed plate and the piston rod baffle, and the height-adjusting screw rod penetrates through and is supported on the screw rod supporting plate.
The low-pressure sealing test device for the multistage hydraulic oil cylinder comprises a base plate, a height-adjusting fixed plate, a pull rod, a support and a support, wherein the base plate is arranged on the base plate, the height-adjusting fixed plate is arranged on the support, and the support is arranged on the base plate.
In the low-pressure sealing test device for the multistage hydraulic oil cylinder, the middle support plate is respectively connected with the pull rods at the lower parts of the left pull rod group and the right pull rod group.
According to the low-pressure sealing test device of the multistage hydraulic oil cylinder, the middle support plate is located at the middle point of the pull rod.
The technical effects of the utility model reside in that:
the utility model is used for during hydro-cylinder low-pressure seal test, realize multistage hydraulic cylinder's quick installation and experiment, when raising the efficiency, also can reduce operating personnel quantity, in process of production, realize high efficiency, high-quality big batch experiment to the effect of using manpower sparingly has been reached.
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, but the present invention is not limited thereto.
Drawings
Fig. 1 is a schematic structural diagram of a testing apparatus according to an embodiment of the present invention;
FIG. 2 is a top view of FIG. 1;
fig. 3 is a schematic view of a support lug according to an embodiment of the present invention;
FIG. 4 is a left side view of FIG. 3;
fig. 5 is a schematic view of a piston rod baffle according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a mounting distance adjusting mechanism according to an embodiment of the present invention.
Wherein the reference numerals
1 support
11 bottom plate
12 draw bar
13 intermediate support plate
2 lug dog
21 body
22 mounting part
23 fixed part
24 mounting hole
25 open slot
26 arc groove
3 piston rod baffle
31 fixing hole
32 piston rod fixing groove
33 chamfer angle
4 mounting distance adjusting mechanism
41 height-adjusting screw
42 heightening fixed plate
43 screw support plate
5 multistage hydraulic cylinder
Detailed Description
The following describes the structural and operational principles of the present invention in detail with reference to the accompanying drawings:
referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of a testing apparatus according to an embodiment of the present invention, and fig. 2 is a top view of fig. 1. The utility model discloses a multistage hydraulic cylinder's low pressure seal test device, include: a bracket 1; the hydraulic cylinder positioning mechanism comprises a support lug stop block 2 and a piston rod baffle 3, wherein the support lug stop block 2 is installed at one end of the support 1 and used for quickly installing and positioning the multistage hydraulic cylinder 5, and the piston rod baffle 3 is arranged at the other end of the support 1 and used for positioning an upper end piston of the multistage hydraulic cylinder 5; and the mounting distance adjusting mechanism 4 comprises a height-adjusting screw rod 41 and a height-adjusting fixed plate 42, the height-adjusting screw rod 41 is mounted on the height-adjusting fixed plate 42 and is positioned at the other end of the support 1, and the piston rod baffle 3 is mounted at the top end of the height-adjusting screw.
In this embodiment, the bracket 1 includes a bottom plate 11 and a plurality of pull rods 12, two ends of the plurality of pull rods 12 are respectively connected to the bottom plate 11 and the height-adjusting fixing plate 42, and the lug stopper 2 is installed on the bottom plate 11. The plurality of pull rods 12 are divided into a left pull rod 12 group and a right pull rod 12 group, each pull rod 12 group comprises two pull rods 12 which are arranged up and down and are parallel to each other, and the left pull rod 12 group and the right pull rod 12 group are parallel to each other and are arranged in a left-right symmetrical mode by taking the central line of the bottom plate 11 as a symmetrical center. The bracket 1 further comprises an intermediate support plate 13, wherein the intermediate support plate 13 is positioned between the bottom plate 11 and the height-adjusting fixed plate 42 and is connected with the pull rod 12.
Referring to fig. 3 and 4, fig. 3 is a schematic view of a support lug structure according to an embodiment of the present invention, and fig. 4 is a left side view of fig. 3. The two lug stop blocks 2 are symmetrically arranged on the bottom plate 11 and are respectively close to the pull rod 12 groups. The journal stirrup stopper 2 comprises a body 21 and an installation part 22 and a fixing part 23 which are arranged on the body 21, wherein the installation part 22 is provided with a plurality of installation holes 24, the fixing part 23 comprises an open slot 25 and an arc slot 26 extending from the installation part 22 and is in an L shape, the radian of the arc slot 26 is matched with the diameter of the journal stirrup of the multistage hydraulic oil cylinder 5, the size of the arc is determined according to the diameter of the journal stirrup, and the journal stirrup stopper 2 is fixed on the bottom plate 11 through 4 threaded holes.
Referring to fig. 5, fig. 5 is a schematic view of a piston rod baffle according to an embodiment of the present invention. Be provided with fixed orifices 31 and piston rod fixed slot 32 on the piston rod baffle 3, piston rod fixed slot 32 is U type structure groove, follows the edge in U type structure groove is provided with chamfer 33, preferably chamfer 33 of 20x45 degree, makes things convenient for the piston rod to go into the position, through 4 screw holes, fixes piston rod baffle 3 on heightening screw rod 41.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a mounting distance adjusting mechanism according to an embodiment of the present invention. The mounting distance adjusting mechanism 4 of the present embodiment further includes a screw supporting plate 43, the screw supporting plate 43 is installed between the height-adjusting fixing plate 42 and the piston rod baffle 3, and the height-adjusting screw 41 passes through and is supported on the screw supporting plate 43. All be provided with four mounting holes 24 on screw rod backup pad 43, the level fixed plate 42, the screw rod is fixed on level fixed plate 42 through 8 standard part nuts to level screw rod 41, realizes adjusting installation distance and fixed effect. The screw support plate 43 is used to support the screw for a long stroke.
The working process of the utility model is as follows:
an outer sleeve of the multi-stage hydraulic oil cylinder 5 is removed, and one end of a piston head is wiped clean, so that whether oil leakage exists or not can be conveniently seen; the multistage hydraulic oil cylinder 5 is quickly positioned, the multistage hydraulic oil cylinder 5 to be tested is vertically hoisted by a crane, the end of a support lug of the multistage hydraulic oil cylinder 5 is downward, and the support lug of the multistage hydraulic oil cylinder 5 is slowly placed in an arc-shaped groove of a support lug stop block 2; the distance between the lug baffle 2 and the piston rod baffle 3 is adjusted to be consistent with the installation distance of the multi-stage hydraulic oil cylinder 5 to be tested through the height-adjusting screw rod 41; aiming at the multi-stage hydraulic oil cylinder 5 to be tested with uniform specification, the position of the piston rod baffle 3 on the right side is adjusted during the first test, so that the piston head can smoothly enter the piston rod fixing groove 32. The mounting distance of the product to be tested can be determined in advance, and the distance between the lug baffle and the piston rod baffle 3 is adjusted to be consistent with the mounting distance of the product to be tested through the height-adjusting screw rod 41; the hoisting equipment is continuously descended to enable the multistage hydraulic oil cylinder 5 to slowly topple towards one side of the height-adjusting fixed plate 42, and the piston head of the multistage hydraulic oil cylinder 5 enters the piston rod fixing groove 32 of the piston rod baffle 3, so that the installation of the multistage hydraulic oil cylinder 5 to be tested is completed; connecting an oil source with the multistage hydraulic oil cylinder 5, controlling the oil source to perform a pressure sealing test on the multistage hydraulic oil cylinder 5, and observing whether leakage exists between each stage of cylinder barrel and at positions such as an end cover; and if the multi-stage hydraulic oil cylinder 5 has no leakage, removing the oil source, and reinstalling the outer sleeve to leave the factory.
Wherein, an N46 oil source is preferably adopted, the pressure is preferably 5MPa, and the pressure rise and fall cycle is carried out for N times; and respectively lifting the left end and the right end of the bracket 1 according to a set height, preferably lifting the left end and the right end to 200mm, and respectively maintaining the pressure for a set time, preferably 10 minutes, so as to complete the pressure sealing test of the multistage hydraulic oil cylinder 5. And then, controlling the crane to directly hoist the tested multistage hydraulic oil cylinder 5 and transferring the hydraulic oil cylinder to a circulation area to finish the test of a set of products.
The utility model discloses utilize the journal stirrup dog 2 structure of test device's support 1, realize that multistage hydraulic cylinder 5's journal stirrup is installed and is fixed a position fast, utilize piston rod baffle 3, realize the location of hydro-cylinder upper end piston. The left and right movement of the piston rod baffle 3 in the effective stroke is realized by utilizing the piston rod baffle 3, the height-adjustable screw rod 41, the screw rod supporting plate 43, the height-adjustable fixed plate 42 and the hexagon nut, so that the device is suitable for product tests with different installation distances. Four pull rods 12 are fixed together by hexagonal nuts between the bottom plate 11 and the height-adjusting fixed plate 42, and the thread structures at the two ends of each pull rod 12 can bear the load generated during the sealing test of the multistage hydraulic oil cylinder 5. When the oil cylinder low-pressure sealing test is carried out, the multistage hydraulic oil cylinder 5 can be quickly installed and tested, the number of operators can be reduced while the efficiency is improved, high-efficiency and high-quality mass tests are realized in the production process, and the effect of saving manpower is achieved.
Naturally, the present invention can be embodied in many other forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be made by one skilled in the art without departing from the spirit or essential attributes thereof, and it is intended that all such changes and modifications be considered as within the scope of the appended claims.
Claims (10)
1. The utility model provides a multistage hydraulic cylinder's low-pressure seal test device which characterized in that includes:
a support;
the hydraulic cylinder positioning mechanism comprises a support lug stop block and a piston rod baffle, wherein the support lug stop block is used for mounting and positioning a support lug of the multistage hydraulic oil cylinder, the piston rod baffle is used for positioning a piston at the upper end of the multistage hydraulic oil cylinder, the support lug stop block is mounted at one end of the support, and the piston rod baffle is arranged at the other end of the support; and
the mounting distance adjusting mechanism comprises a height adjusting screw rod and a height adjusting fixed plate, the height adjusting screw rod is mounted on the height adjusting fixed plate and located at the other end of the support, and the piston rod baffle is mounted at the top end of the height adjusting screw rod.
2. The low-pressure sealing test device for the multistage hydraulic oil cylinder as claimed in claim 1, wherein the bracket comprises a bottom plate and a plurality of pull rods, two ends of each pull rod are respectively connected with the bottom plate and the height-adjusting fixed plate, and the support lug stop block is installed on the bottom plate.
3. The low-pressure sealing test device for the multistage hydraulic oil cylinder as claimed in claim 2, wherein the pull rods are divided into left and right pull rod sets, each pull rod set comprises two pull rods which are vertically arranged and are parallel to each other, and the left and right pull rod sets are parallel to each other and are symmetrically arranged in the left and right directions by taking the center line of the bottom plate as a symmetry center.
4. The low-pressure seal testing device for the multistage hydraulic oil cylinder as claimed in claim 3, wherein the number of the support lug stoppers is two, and the two support lug stoppers are symmetrically arranged on the bottom plate and respectively close to the pull rod sets.
5. The device for testing the low-pressure sealing of the multistage hydraulic oil cylinder is characterized in that the supporting lug stopper comprises a body, and an installation part and a fixing part which are arranged on the body, wherein the installation part is provided with a plurality of installation holes, the fixing part comprises an open slot and an arc slot which extends towards the installation part, and the radian of the arc slot is matched with the diameter of the supporting lug of the multistage hydraulic oil cylinder.
6. The low-pressure sealing test device for the multi-stage hydraulic oil cylinder as claimed in claim 5, wherein the piston rod baffle is provided with a fixing hole and a piston rod fixing groove, the piston rod fixing groove is a U-shaped groove, and a chamfer is arranged along the edge of the U-shaped groove.
7. The low pressure seal test device of a multistage hydraulic cylinder according to claim 6, wherein the mounting distance adjusting mechanism further comprises a screw support plate, the screw support plate is mounted between the height-adjusting fixed plate and the piston rod baffle, and the height-adjusting screw penetrates through and is supported on the screw support plate.
8. The low pressure seal test device of a multistage hydraulic cylinder according to claim 3 or 4, characterized in that the bracket further comprises an intermediate support plate, the intermediate support plate is positioned between the bottom plate and the height-adjusting fixed plate and is connected with the pull rod.
9. The low-pressure seal testing device for the multistage hydraulic cylinder as recited in claim 8, wherein said intermediate support plate is connected to the tie rods at the lower portions of said left and right tie rod sets, respectively.
10. The low pressure seal test apparatus for a multi-stage hydraulic ram of claim 9, wherein said intermediate support plate is located at a midpoint of said tie rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020137141.9U CN211602304U (en) | 2020-01-21 | 2020-01-21 | Low-pressure sealing test device of multistage hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020137141.9U CN211602304U (en) | 2020-01-21 | 2020-01-21 | Low-pressure sealing test device of multistage hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211602304U true CN211602304U (en) | 2020-09-29 |
Family
ID=72580275
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020137141.9U Expired - Fee Related CN211602304U (en) | 2020-01-21 | 2020-01-21 | Low-pressure sealing test device of multistage hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211602304U (en) |
-
2020
- 2020-01-21 CN CN202020137141.9U patent/CN211602304U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20200929 Termination date: 20210121 |