CN214145866U - Pressing plate type piston rod sealing assembly assembling structure - Google Patents
Pressing plate type piston rod sealing assembly assembling structure Download PDFInfo
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- CN214145866U CN214145866U CN202023236186.0U CN202023236186U CN214145866U CN 214145866 U CN214145866 U CN 214145866U CN 202023236186 U CN202023236186 U CN 202023236186U CN 214145866 U CN214145866 U CN 214145866U
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Abstract
A pressing plate type piston rod sealing assembly assembling structure comprises a piston rod sealing assembly, a sealing connecting plate, a pressing bolt and a pressing plate. The pressing plate type piston rod sealing assembly structure is adopted, the problem that the piston rod sealing assembly cannot be normally assembled due to the fact that a pressing hole of the piston rod sealing assembly is not aligned with a connecting screw hole of the sealing connecting plate in the piston rod sealing assembly structure is solved, the assembly is convenient, the sealing effect of the piston rod sealing assembly can be normally exerted, and the piston rod sealing assembly structure has popularization and application values.
Description
Technical Field
The utility model relates to a slush pump assembly technical field, especially a clamp plate formula piston rod seal assembly structure.
Background
At present, the bigger reciprocating type slush pump body structure that geological industry is more commonly used, its theory of operation is: the power machine drives the crankshaft to rotate, the connecting rod changes the rotating power from the crankshaft into linear reciprocating power and transmits the linear reciprocating power to the crosshead, the crosshead transmits the reciprocating power to the piston through the piston rod assembly, so that the piston forms reciprocating motion in the cylinder sleeve, and the piston rod sealing assembly 1 ensures that lubricating oil in the pump body assembly welding part does not leak outwards when the piston rod normally reciprocates (as shown in figure 1).
The existing common piston rod sealing assembly assembling structure is characterized in that a piston rod sealing assembly 1 is arranged in a positioning hole 21 in a sealing connecting plate 2 for radial positioning, and the piston rod sealing assembly 1 is pressed through a pressing bolt 3 penetrating through a corresponding pressing hole 41 on an outer flange plate 4 integrated with the piston rod sealing assembly 1 and a connecting screw hole 22 on the sealing connecting plate 2, so that the piston rod sealing assembly 1 can be completely fixed;
because the pump body assembly welding piece is large and the connecting screw hole on the sealing connecting plate is not easy to be processed after welding, the connecting screw hole 22 on the sealing connecting plate 2 must be processed in place before welding, the positioning hole 21 of the sealing connecting plate 2 and the cylinder sleeve must be coaxial, and can only be finely machined after the assembly welding of the pump body assembly welding part, because the placing position of the sealing connecting plate 2 cannot be absolutely accurate when the pump body assembly welding piece is assembled and welded, and the pump body assembly welding piece has certain stress deformation after the assembly and welding are finished, therefore, after the pump body assembly and welding part is finished, the coaxiality of the positioning hole 21 on the sealing connecting plate 2 and the excircle of the contact surface of the piston rod sealing component 1 cannot be ensured, this makes it possible that the compression holes 41 of the outer flange 4 of the piston rod seal assembly 1 and the connection screw holes 22 of the seal connecting plate 2 are not aligned, and the piston rod seal assembly 1 cannot be assembled normally.
Disclosure of Invention
The utility model aims at overcoming the not enough of prior art, and provide one kind and solve to lead to among the piston rod seal assembly structure, piston rod seal assembly's compaction hole is not right with sealing connection plate's connecting screw hole, leads to the clamp plate formula piston rod seal assembly structure of the unable normal equipment problem of piston rod seal assembly.
The technical scheme of the utility model is that:
a pressing plate type piston rod sealing assembly assembling structure comprises a piston rod sealing assembly, a sealing connecting plate, a pressing bolt and a pressing plate, wherein a plurality of connecting screw holes are uniformly distributed on the sealing connecting plate around the circumference of an inner side positioning hole, the piston rod sealing assembly comprises an outer side sealing ring seat and an inner side sealing ring seat, the outer side sealing ring seat is fixedly connected with the inner side sealing ring seat, a circle of boss is arranged on the excircle of the outer side sealing ring seat, the diameter of the excircle of the boss is larger than that of the positioning hole of the sealing connecting plate, the pressing plate is in an L-shaped strip shape in cross section, a threaded hole is formed in one side face of the pressing plate, the pressing plate is arranged on the outer side of the boss of the outer side sealing ring seat, the pressing bolt penetrates through a threaded hole in the pressing plate to be matched with the connecting screw hole in the sealing connecting, the piston rod sealing assembly is fixed in the positioning hole on the inner side of the sealing connecting plate through the pressing plate.
The piston rod sealing assembly is installed in the positioning hole of the sealing connecting plate to be radially positioned, and then the piston rod sealing assembly is compressed through the compression bolt, the compression plate and the connecting screw hole in the sealing connecting plate, so that the piston rod sealing assembly is fixed. The piston rod sealing assembly is only influenced by the axial reciprocating acting force from the piston rod and does not influence the force in the rotating direction, so the piston rod sealing assembly is not completely fixed, but does not influence the normal operation of the pump body of the large-sized mud pump.
Compared with the prior art, the utility model, adopt clamp plate formula piston rod seal assembly structure, solved logical piston rod seal assembly structure in, piston rod seal assembly's compaction hole is not to last with sealing connection plate's connecting screw hole, leads to the unable normal equipment problem of piston rod seal assembly, and the equipment is convenient, can normally exert piston rod seal assembly's sealed effect again, has popularization and application and worth.
Drawings
FIG. 1 is a schematic diagram of a prior art structure;
FIG. 2 is a schematic view of a sealing web;
fig. 3 is a schematic structural diagram of an embodiment of the present invention.
Detailed Description
The detailed structure of the present invention will be further described with reference to the accompanying drawings and the detailed description.
Example 1
As shown in fig. 3, a pressing plate type piston rod seal assembly assembling structure comprises a piston rod seal assembly 1, a seal connecting plate 2, a pressing bolt 3 and a pressing plate 5, wherein a plurality of connecting screw holes 22 are uniformly distributed on the seal connecting plate 2 around the circumference of an inner side positioning hole 21, the piston rod seal assembly 1 comprises an outer side seal ring seat 11 and an inner side seal ring seat 12, the outer side seal ring seat 11 is fixedly connected with the inner side seal ring seat 12, a circle of boss 111 is arranged on the excircle of the outer side seal ring seat 11, the excircle diameter of the boss 111 is larger than the diameter of the positioning hole 21 of the seal connecting plate, the pressing plate 5 is in a strip shape with an L-shaped section, a threaded hole 51 is arranged on one side surface of the pressing plate, the pressing plate 5 is arranged on the outer side of the boss 111 of the outer side seal ring seat 11, the pressing bolt 3 passes through the threaded hole 51 on the pressing plate 5 to be matched with the connecting screw hole 22 on the seal connecting plate 2, the pressing plate 5 is pressed outside the boss 111 of the outer seal ring seat 11, and when the pressing bolt 3 is screwed in, the piston rod seal assembly 1 is fixed in the positioning hole 21 on the inner side of the seal connecting plate 2 through the pressing plate 5.
The piston rod sealing assembly 1 is installed in the positioning hole 21 of the sealing connecting plate 2 to be radially positioned, and then the piston rod sealing assembly 1 is compressed through the compression bolt 3, the compression plate 5 and the connecting screw hole 22 on the sealing connecting plate 2, so that the piston rod sealing assembly 1 can be fixed. Because the piston rod sealing assembly 1 is only influenced by the axial reciprocating acting force from the piston rod and does not have the influence of the force in the rotating direction, the piston rod sealing assembly 1 is not completely fixed, but does not influence the normal operation of the pump body of the large-sized mud pump.
Claims (1)
1. A pressing plate type piston rod sealing assembly assembling structure is characterized by comprising a piston rod sealing assembly (1), a sealing connecting plate (2), a pressing bolt (3) and a pressing plate (5), wherein a plurality of connecting screw holes (22) are uniformly distributed on the sealing connecting plate (2) around the circumference of an inner side positioning hole (21), the piston rod sealing assembly (1) comprises an outer side sealing ring seat (11) and an inner side sealing ring seat (12), the outer side sealing ring seat (11) is fixedly connected with the inner side sealing ring seat (12), a circle of boss (111) is arranged on the excircle of the outer side sealing ring seat (11), the diameter of the excircle of the boss (111) is larger than that of the positioning hole (21) of the sealing connecting plate, the pressing plate (5) is in an L-shaped strip shape in cross section, a threaded hole (51) is formed in one side face of the pressing plate, and the pressing plate (5) is arranged on the outer side of the boss (111) of the outer side sealing ring seat (11), the piston rod sealing assembly is characterized in that the compression bolt (3) penetrates through a threaded hole (51) in the compression plate (5) to be matched with a connecting threaded hole (22) in the sealing connecting plate (2), the compression plate (5) is pressed on the outer side of a boss (111) of the outer side sealing ring seat (11), and when the compression bolt (3) is screwed down and screwed in, the piston rod sealing assembly (1) is fixed in a positioning hole (21) in the inner side of the sealing connecting plate (2) through the compression plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023236186.0U CN214145866U (en) | 2020-12-29 | 2020-12-29 | Pressing plate type piston rod sealing assembly assembling structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023236186.0U CN214145866U (en) | 2020-12-29 | 2020-12-29 | Pressing plate type piston rod sealing assembly assembling structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214145866U true CN214145866U (en) | 2021-09-07 |
Family
ID=77542549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023236186.0U Active CN214145866U (en) | 2020-12-29 | 2020-12-29 | Pressing plate type piston rod sealing assembly assembling structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214145866U (en) |
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2020
- 2020-12-29 CN CN202023236186.0U patent/CN214145866U/en active Active
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