CN212682239U - Hydraulic pit jacking device - Google Patents
Hydraulic pit jacking device Download PDFInfo
- Publication number
- CN212682239U CN212682239U CN202021238067.6U CN202021238067U CN212682239U CN 212682239 U CN212682239 U CN 212682239U CN 202021238067 U CN202021238067 U CN 202021238067U CN 212682239 U CN212682239 U CN 212682239U
- Authority
- CN
- China
- Prior art keywords
- pit
- cylinder body
- upper cover
- oil storage
- jacking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Actuator (AREA)
Abstract
The utility model relates to a hydraulic pit jacking device, which comprises a pit jacking cylinder body and an upper cover, wherein the upper cover is correspondingly covered on the top end of the pit jacking cylinder body, and the upper cover is connected with the pit jacking cylinder body through a screw; the cylinder body that the pit pushes up is the cylinder, the vertical oil storage chamber that is equipped with in top center of pit cylinder body, evenly set up three and oil storage chamber vertically jar hole along the circumference on the lateral wall in oil storage chamber, be equipped with the cylinder liner with jar hole close fit in the jar, be equipped with the piston in the cylinder liner, the top of piston is connected with the thimble, the top of cylinder liner is equipped with the flange that prevents the piston roll-off, the upper cover puts at the central point in oil storage chamber and is equipped with the thread connection hole, thread connection hole department threaded connection has the joint, the vertical oil filler point that link up the joint that is equipped with in top center that connects, connect. The top end of the connector of the product can be connected with hydraulic equipment, so that manual work is saved, time and labor are saved, and the quality consistency of the ejected pits is good.
Description
Technical Field
The utility model relates to a top hole instrument, concretely relates to hydraulic pressure top hole ware.
Background
In the processing of the box body, a stainless steel bearing sleeve is sometimes needed to be embedded in the aluminum alloy box body, and in order to enable the stainless steel sleeve to be firmly installed on the box body, pits are always required to be evenly punched in the middle of the bearing sleeve. The existing pit jacking tool is of a mechanical structure, a screw is used for jacking a cone, three thimbles are pushed out along with downward movement of a cone body until a bearing sleeve is jacked out of a pit. The required strength of such structure is very big, often needs 2 people cooperation operations, has very big frictional force during operation moreover between cone and the thimble, and the thimble wearing and tearing are very fast, need often to change the thimble.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydraulic pressure pit jacking ware.
The utility model aims at realizing through the following technical scheme: the pit jacking cylinder comprises a pit jacking cylinder body and an upper cover, wherein the upper cover is correspondingly covered on the top end of the pit jacking cylinder body, and the upper cover is connected with the pit jacking cylinder body through a screw; the pit cylinder body is the cylinder, the vertical oil storage chamber that is equipped with in top center of pit cylinder body, evenly set up three and oil storage chamber vertically jar hole on the lateral wall in oil storage chamber, be equipped with the cylinder liner with jar hole close fit in hole, be equipped with the piston in the cylinder liner, the one end that the piston is close to pit cylinder body outer wall is connected with the thimble, the one end that is close to pit cylinder body outer wall of cylinder liner is equipped with the flange that prevents the piston roll-off, the upper cover is equipped with the thread connection hole at the central point in oil storage chamber, thread connection hole department threaded connection has the joint, the top that connects is connected with the hydraulic pump, the vertical oil filler point that link up the joint that is equipped with in top center that connects, the outside threaded connection that connects has lock nut.
In the preferred embodiment, the piston includes sealing and connecting portion, connecting portion are located the one end that the sealing is close to the flange, the one end that connecting portion are close to the bearing housing is equipped with the connecting hole, thimble zonulae occludens is in the connecting hole, the external diameter of sealing corresponds with the cylinder liner, the seal groove has been seted up along the circumference to the outer wall of sealing, seal groove department cover is equipped with first sealing washer.
In a preferred embodiment, a return spring is provided between an end of the sealing portion adjacent the flange and the flange.
In a preferred embodiment, a combined sealing gasket is arranged between the locking nut and the upper cover, and the combined sealing gasket is arranged above the locking nut.
In a preferred embodiment, the tank body is provided with a positioning pit at the center of the bottom end of the pit cylinder body, the bottom end of the pit cylinder body is provided with a positioning boss corresponding to the positioning pit, and the positioning boss is positioned in the positioning pit.
In a preferred embodiment, the top end of the pit cylinder body and the oil storage cavity are concentrically provided with an annular groove, and a second sealing ring is arranged in the annular groove.
The utility model has the advantages that: the top end of the connector of the product can be connected with hydraulic equipment, so that manual work is saved, time and labor are saved, and the quality consistency of the ejected pits is good.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a cross-sectional view of a hydraulic pit jacking device according to an embodiment of the present invention;
fig. 2 is a top view of fig. 1.
In the figure:
1. a pit jacking cylinder body; 2. an upper cover; 3. an oil storage chamber; 4. a cylinder liner; 5. a piston; 6. a thimble; 7. a box body; 8. a bearing housing; 9. a joint; 10. locking the nut; 11. combining sealing gaskets; 12. a second seal ring; 13. a first seal ring; 14. a return spring; 15. positioning the boss; 16. a sealing part; 17. a connecting portion; 18. and an oil filling hole.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
The invention will be further described with reference to the drawings and specific examples.
As shown in fig. 1-2, a hydraulic pit jacking device according to an embodiment of the present invention is used for jacking the inner wall of a bearing sleeve installed on a box 7, and includes a pit jacking cylinder body 1 and an upper cover 2, wherein the upper cover 2 correspondingly covers the top end of the pit jacking cylinder body 1, and the upper cover 2 and the pit jacking cylinder body 1 are connected by screws; the pit jacking cylinder body 1 is a cylinder, an oil storage cavity 3 is vertically arranged at the top end center of the pit jacking cylinder body 1, three cylinder holes perpendicular to the oil storage cavity 3 are uniformly formed in the side wall of the oil storage cavity 3, a cylinder sleeve 4 tightly matched with the cylinder holes is arranged in each cylinder hole, a piston 5 is arranged in each cylinder sleeve 4, one end, close to the outer wall of the pit jacking cylinder body, of each piston 5 is connected with a thimble 6, one end, close to the outer wall of the pit jacking cylinder body, of each cylinder sleeve 4 is provided with a flange for preventing the piston 5 from sliding out, the upper cover 2 is provided with a threaded hole in the center of the oil storage cavity 3, a connector 9 is in threaded connection with the threaded hole, the top of the connector 9 is connected with a hydraulic pump (not shown in the figure), the hydraulic pump can use the existing hydraulic pump, an oil filling hole 18 penetrating through the connector 9, the lock nut 10 contacts the upper cap 2.
In the preferred embodiment, piston 5 includes sealing 16 and connecting portion 17, connecting portion 17 is located the one end that sealing 16 is close to the flange, the one end that connecting portion 17 is close to the bearing housing is equipped with the connecting hole, 6 zonulae occludens of thimble are in the connecting hole, the external diameter of sealing 16 corresponds with cylinder liner 4, the seal groove has been seted up along the circumference to the outer wall of sealing 16, seal groove department cover is equipped with first sealing washer 13 and prevents that hydraulic oil from leaking. The return spring 14 is arranged between one end of the sealing part 16 close to the flange and the flange.
A combined sealing washer 11 is arranged between the locking nut 10 and the upper cover 2, and the combined sealing washer 11 is also arranged above the locking nut 10. The combined sealing washer 11 can be selected according to the model of JB/T982, and the combined sealing washer 11 can prevent the leakage at the joint of the hydraulic pump and the joint 9 and the joint of the joint 9 and the upper cover 2. The tank body 7 is provided with a positioning pit at the center of the bottom end of the pit cylinder body 1, the bottom end of the pit cylinder body 1 is provided with a positioning boss 15 corresponding to the positioning pit, and the positioning boss 15 is positioned in the positioning pit. The top of the pit jacking cylinder body 1 and the oil storage cavity 3 are concentrically provided with an annular groove, and a second sealing ring 12 is arranged in the annular groove.
When the hydraulic oil ejection device is used, the product is firstly placed into the bearing sleeve, the positioning boss 15 is positioned in the positioning pit, the joint 9 is connected with the hydraulic pump, the hydraulic pump injects hydraulic oil into the oil storage cavity 3 through the joint 9, a certain pressure is reached, and then a certain period of time is kept, the hydraulic oil can push the piston 5 to move outwards along the radial direction of the ejection pit cylinder body 1, and the piston contacts the bearing sleeve and applies pressure to the bearing sleeve so as to eject the pit. After the pit jacking is finished, the hydraulic pump is decompressed, and the piston 5 returns to the position in front of the pit jacking under the action of the return spring 14.
Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (6)
1. The utility model provides a hydraulic pressure pit jacking ware for the inner wall pit jacking of the bearing housing of installation on the box, its characterized in that: the pit jacking cylinder comprises a pit jacking cylinder body and an upper cover, wherein the upper cover is correspondingly covered on the top end of the pit jacking cylinder body, and the upper cover is connected with the pit jacking cylinder body through a screw; the pit cylinder body is the cylinder, the vertical oil storage chamber that is equipped with in top center of pit cylinder body, evenly set up three and oil storage chamber vertically jar hole on the lateral wall in oil storage chamber, be equipped with the cylinder liner with jar hole close fit in hole, be equipped with the piston in the cylinder liner, the one end that the piston is close to pit cylinder body outer wall is connected with the thimble, the one end that is close to pit cylinder body outer wall of cylinder liner is equipped with the flange that prevents the piston roll-off, the upper cover is equipped with the thread connection hole at the central point in oil storage chamber, thread connection hole department threaded connection has the joint, the top that connects is connected with the hydraulic pump, the vertical oil filler point that link up the joint that is equipped with in top center that connects, the outside threaded connection that connects has lock nut.
2. The pit roof of claim 1, wherein: the piston includes sealing part and connecting portion, connecting portion are located the one end that the sealing part is close to the flange, the one end that connecting portion are close to the bearing housing is equipped with the connecting hole, thimble zonulae occludens is in the connecting hole, the external diameter and the cylinder liner of sealing part correspond, the seal groove has been seted up along the circumference to the outer wall of sealing part, seal groove department cover is equipped with first sealing washer.
3. A pit jacking device as claimed in claim 2, wherein: and a return spring is arranged between one end of the sealing part close to the flange and the flange.
4. The pit roof of claim 1, wherein: and a combined sealing washer is arranged between the locking nut and the upper cover, and the combined sealing washer is arranged above the locking nut.
5. The pit roof of claim 1, wherein: the bottom center department of box at the pit cylinder body is equipped with the location pit, the bottom of pit cylinder body is equipped with the location boss that corresponds with the location pit, the location boss is located the location pit.
6. The pit roof of claim 1, wherein: the top of the pit jacking cylinder body and the oil storage cavity are concentrically provided with annular grooves, and second sealing rings are arranged in the annular grooves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021238067.6U CN212682239U (en) | 2020-06-29 | 2020-06-29 | Hydraulic pit jacking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021238067.6U CN212682239U (en) | 2020-06-29 | 2020-06-29 | Hydraulic pit jacking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212682239U true CN212682239U (en) | 2021-03-12 |
Family
ID=74894861
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021238067.6U Active CN212682239U (en) | 2020-06-29 | 2020-06-29 | Hydraulic pit jacking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212682239U (en) |
-
2020
- 2020-06-29 CN CN202021238067.6U patent/CN212682239U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105351525B (en) | Petroleum pipe sealing device | |
| CN212682239U (en) | Hydraulic pit jacking device | |
| CN212803142U (en) | Annular blowout preventer | |
| CN216430125U (en) | Structure for increasing starting pressure when piston rod of hydraulic cylinder extends out | |
| CN215487623U (en) | High-pressure sealing device of supercharger | |
| CN101532498A (en) | Mechanical seal of multilayer sludge pump | |
| CN210702109U (en) | Mechanical die with guide pillar self-lubricating structure | |
| CN210560528U (en) | Resettable stemming sealing mechanism | |
| CN213064851U (en) | Spray sealing device for polymerization kettle | |
| CN211778308U (en) | Anti-leakage automobile piston rod | |
| CN212774211U (en) | Subsea tree well head connector suitable for within 50 meters of water depth | |
| CN209077440U (en) | A kind of axle sleeve locking apparatus by hydraulic control | |
| CN209977557U (en) | High-pressure liquid sealing plug | |
| CN210397073U (en) | Cooperation structure of slush pump disk seat and hydraulic cylinder | |
| CN106641255A (en) | Sealing structure for high-pressure vessel | |
| CN216045416U (en) | Sealing ring for a container and container | |
| CN211655984U (en) | Pulse power source withstand voltage observation window | |
| CN216789602U (en) | Uncontrolled leaking stoppage device | |
| CN218000037U (en) | High leakproofness suspension cylinder | |
| CN113700959B (en) | Sealing structure | |
| CN212931801U (en) | Leakproofness detects assembly | |
| CN216951086U (en) | Jacking multistage hydraulic oil cylinder | |
| CN212717472U (en) | Hydraulic oil cylinder | |
| CN210920372U (en) | Rubber runs through seal structure | |
| CN220727101U (en) | Novel environment-friendly waterproof water-stop sealing gasket |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |