CN217401342U - Pumping main oil cylinder piston anti-loosening structure, pumping main oil cylinder and pumping mechanism - Google Patents
Pumping main oil cylinder piston anti-loosening structure, pumping main oil cylinder and pumping mechanism Download PDFInfo
- Publication number
- CN217401342U CN217401342U CN202221237736.7U CN202221237736U CN217401342U CN 217401342 U CN217401342 U CN 217401342U CN 202221237736 U CN202221237736 U CN 202221237736U CN 217401342 U CN217401342 U CN 217401342U
- Authority
- CN
- China
- Prior art keywords
- piston
- thread
- pumping
- nut
- master cylinder
- 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
- 238000005086 pumping Methods 0.000 title claims description 35
- 230000002265 prevention Effects 0.000 claims 4
- 125000003003 spiro group Chemical group 0.000 claims 1
- 239000003921 oil Substances 0.000 description 8
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000306 component Substances 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a pump sending master cylinder piston anti loosening structure, pump sending master cylinder and pump sending mechanism in pump sending machinery technical field aims at solving among the prior art piston and easily takes place not hard up, leads to hydro-cylinder trouble scheduling problem, and it includes: the piston is sleeved on the cylinder rod, the piston is in threaded connection with the cylinder rod through a first thread, the cylinder rod is connected with a nut through a second thread, the directions of the first thread and the second thread are opposite, and the end face of the nut abuts against the piston and is connected with the piston through a plurality of locking pieces. The utility model discloses can make piston and nut can't take place corotation and relative rotation to guarantee that piston and jar pole can not take place not hard up, simple structure, convenient to use.
Description
Technical Field
The utility model relates to a pump sending master cylinder piston anti loosening structure, pump sending master cylinder and pump sending mechanism belongs to pump sending machinery technical field.
Background
The pumping mechanism is a core component of the pumping machine, is an actuating mechanism of the pumping machine, is an implementation component for converting hydraulic energy into concrete conveying pressure, and is a key device for realizing continuous pumping of concrete. The pumping main oil cylinder is one of the key parts of the concrete pump and is arranged on the water tank, and the front end of the cylinder rod is connected with the concrete piston assembly to provide pumping power for the pumping machine. The pumping main oil cylinder mainly comprises a cylinder barrel, a cylinder rod, a piston and the like, and hydraulic oil acts on the side surface of the piston to drive the cylinder rod to reciprocate in the oil cylinder. Along with the continuous reciprocating motion of the pumping main oil cylinder, the piston and the cylinder rod are easy to loosen and even fall off, so that the pumping main oil cylinder fails to pump.
In order to solve the problem of the piston loosening, two measures are taken at present: one is that an annular groove is added on the cylinder rod, and a screw is inserted into the annular groove through a locking nut; and secondly, the looseness of the piston is limited by adopting a shaft check ring, but in the reciprocating motion process of the piston, the screw and the shaft check ring in the two structures can continuously bear axial force, so that the fatigue limit is easily reached, shearing is generated, the piston is loosened, and the normal work of the pumping main oil cylinder is influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome not enough among the prior art, provide a pump sending master cylinder piston anti loosening structure, pump sending master cylinder and pumping mechanism for piston and nut can't take place corotation and relative rotation, thereby guarantee that piston and jar pole can not take place not hard up.
In order to achieve the purpose, the utility model is realized by adopting the following technical scheme: a pumping master cylinder piston anti-loosening structure comprises: the piston is sleeved on the cylinder rod, the piston is in threaded connection with the cylinder rod through a first thread, the cylinder rod is connected with a nut through a second thread, the direction of the first thread is opposite to that of the second thread, and the end face of the nut abuts against the piston and is connected with the piston through a plurality of locking pieces.
Optionally, at least two groups of locking members are provided.
Optionally, the retaining member includes a set screw threadably engaged with threaded holes in the nut and the piston.
Optionally, the locking member includes a pin, and the pin is in interference fit with the nut and the pin hole in the piston.
Optionally, the diameter of the first thread is larger than that of the second thread.
The utility model also provides a pump sending master cylinder, including above-mentioned arbitrary piston anti loosening structure.
The utility model also provides a pumping mechanism, including foretell pump sending master cylinder.
Compared with the prior art, the utility model discloses the beneficial effect who reaches:
the piston and the nut of the utility model are respectively screwed with the cylinder rod in the opposite direction of the thread direction, so that the piston and the nut can not rotate in the same direction; and the piston and the nut are fixed through the locking piece and can not rotate relatively, so that the piston can not loosen on the cylinder rod, and the piston-nut combined cylinder is simple in structure and convenient to use.
Drawings
Fig. 1 is a schematic cross-sectional structural view of a locking structure of a pumping master cylinder piston in an embodiment of the present invention;
fig. 2 is an external structural schematic diagram of a locking structure of a pumping master cylinder piston in an embodiment of the present invention;
fig. 3 is a schematic structural view of a pumping mechanism according to an embodiment of the present invention;
in the figure: 1 cylinder rod, 2 nuts, 3 locking pieces, 4 pistons and 5 cylinders.
Detailed Description
The present invention will be further described with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Example 1:
as shown in fig. 1-2, the embodiment of the utility model provides a pumping master cylinder piston anti loosening structure includes: the cylinder rod 1, the piston 4 and the cylinder barrel 5, the cylinder rod 1 is arranged in the cylinder barrel 5, the piston 4 is in threaded connection with the cylinder rod 1 through a first thread, the cylinder rod 1 is further connected with the nut 2 through a second thread, and the thread directions of the first thread and the second thread are opposite, so that the nut 2 and the piston 4 cannot rotate in the same direction. The end face of the nut 2 is abutted to the end face of the piston 4, the nut 2 and the piston 4 are connected with the piston 4 through the locking pieces 3, the nut 2 and the piston 4 are connected into a whole, and therefore the nut 2 and the plug screw 4 cannot rotate relatively, and looseness of the piston 4 cannot occur.
Retaining member 3 can set up the multiunit, and its specific quantity can be increased and decreased according to the concrete implementation. The locking piece 3 can be selected from a set screw or a pin shaft, wherein the pin shaft is in interference fit with the nut 2 and the pin hole on the piston 4. The diameter of the first thread is larger than that of the second thread, so that the piston 4 can be conveniently installed on the cylinder rod 1.
Example 2:
the utility model also provides a pump sending master cylinder, including above-mentioned embodiment piston anti loosening structure.
Example 3:
as shown in fig. 3, the utility model also provides a pumping mechanism, including the pumping master cylinder in the above-mentioned embodiment, the pumping master cylinder is installed above the basin.
The utility model discloses a theory of operation does: the piston 4 is screwed on the cylinder rod 1 through the first screw thread in a right-handed mode, then the nut 2 is screwed on the cylinder rod 1 through the second screw thread in a left-handed mode, and the nut 2 and the piston 4 can not rotate in the same direction through the connection mode of the opposite screw threads. At this moment, the end surfaces of the nut 2 and the piston 4 are abutted, and then the nut 2 and the piston 4 are fixed together through a plurality of set screws, so that the nut 2 and the piston 4 can not rotate relatively, and the piston 4 can be effectively prevented from loosening.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be considered as the protection scope of the present invention.
Claims (7)
1. A piston anti-loosening structure of a pumping master cylinder comprises: jar pole (1), piston (4) and cylinder (5), jar pole (1) is located in cylinder (5), on jar pole (1) was located in piston (4) cover, its characterized in that: the piston (4) is in threaded connection with the cylinder rod (1) through a first thread, the cylinder rod (1) is connected with the nut (2) through a second thread, the directions of the first thread and the second thread are opposite, and the end face of the nut (2) abuts against the piston (4) and is connected with the piston (4) through a plurality of locking pieces (3).
2. The piston looseness prevention structure of the pumping master cylinder according to claim 1, wherein: the locking pieces (3) are at least provided with two groups.
3. The piston looseness prevention structure of the pumping master cylinder according to claim 2, wherein: retaining member (3) are including holding screw, the threaded hole spiro union on holding screw and nut (2) and piston (4).
4. The piston looseness prevention structure of the pumping master cylinder according to claim 2, wherein: the locking piece (3) comprises a pin shaft, and the pin shaft is in interference fit with the nut (2) and the pin hole in the piston (4).
5. The piston looseness prevention structure of the pumping master cylinder according to claim 1, wherein: the diameter of the first thread is larger than that of the second thread.
6. A pumping master cylinder is characterized in that: comprising the piston check structure of any one of claims 1 to 5.
7. A pumping mechanism, characterized by: comprising a pumping master cylinder according to claim 6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221237736.7U CN217401342U (en) | 2022-05-23 | 2022-05-23 | Pumping main oil cylinder piston anti-loosening structure, pumping main oil cylinder and pumping mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221237736.7U CN217401342U (en) | 2022-05-23 | 2022-05-23 | Pumping main oil cylinder piston anti-loosening structure, pumping main oil cylinder and pumping mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217401342U true CN217401342U (en) | 2022-09-09 |
Family
ID=83144148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221237736.7U Active CN217401342U (en) | 2022-05-23 | 2022-05-23 | Pumping main oil cylinder piston anti-loosening structure, pumping main oil cylinder and pumping mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217401342U (en) |
-
2022
- 2022-05-23 CN CN202221237736.7U patent/CN217401342U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207999427U (en) | A kind of anti-loose structure of fast cylinder locking nut | |
| CN113323863B (en) | Fast-assembling combined piston rod of drilling pump | |
| CN217401342U (en) | Pumping main oil cylinder piston anti-loosening structure, pumping main oil cylinder and pumping mechanism | |
| CN202937596U (en) | Novel device for locking nut clockwise and counter-clockwise | |
| CN201030539Y (en) | Water injection pump head components removing device | |
| CN111102265A (en) | Wear-resistant piston rod assembly for hydraulic cylinder | |
| CN111502978A (en) | Connecting device for plunger and power end of diaphragm pump | |
| CN215950288U (en) | Mechanical cylinder capable of being locked quickly | |
| CN218266314U (en) | Connecting structure of power end crosshead and piston rod of small-tonnage double-cylinder double-acting diaphragm pump | |
| CN210343981U (en) | Locking bolt assembly that moves | |
| CN210829943U (en) | Anti-loosening device for piston of hydraulic cylinder | |
| CN215057082U (en) | Locking device for power head of drilling machine | |
| CN219262942U (en) | Drilling pump main bearing bolt with anti-loose function | |
| CN214742438U (en) | Small-torque composite piston anti-loosening structure | |
| CN215486935U (en) | Anti-loosening structure for hydraulic cylinder piston | |
| CN201874959U (en) | Mutually meshed left-handed and right-handed thread type anti-loosening structure | |
| CN207701586U (en) | A kind of anti-loose crank-pin | |
| CN222991895U (en) | Pressure point type all-metal lock nut | |
| CN102720726A (en) | Hydraulic cylinder with detachable sealing structure | |
| CN207819586U (en) | A kind of damping ring is connected and fixed structure | |
| CN220581671U (en) | Double locking structure of push-pull rod | |
| CN220566395U (en) | Hydraulic fastening device for piston nut | |
| CN215521245U (en) | Piston anti-loosening structure for grouting pump | |
| CN211001868U (en) | Joint for aircraft engine with firm installation | |
| CN211852807U (en) | Hydraulic pump clutch for engineering machinery |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |