CN212330262U - Plunger pump rotor copper sleeve frock of impressing - Google Patents
Plunger pump rotor copper sleeve frock of impressing Download PDFInfo
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- CN212330262U CN212330262U CN202020715227.5U CN202020715227U CN212330262U CN 212330262 U CN212330262 U CN 212330262U CN 202020715227 U CN202020715227 U CN 202020715227U CN 212330262 U CN212330262 U CN 212330262U
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Abstract
The utility model relates to a plunger pump rotor copper sheathing frock of impressing, include base, reference column, guide post, pressure equipment mould, prevent pivot and pressure equipment axle, pressure equipment mould sets up the mould circumference hole that round and plunger pump rotor circumference hole correspond along circumference, mould circumference hole diameter slightly is greater than plunger pump rotor circumference hole diameter, prevent that the pivot has the cylinder that four sections diameters increase progressively, first cylinder diameter slightly is less than the copper sheathing internal diameter, and second cylinder diameter is greater than the copper sheathing internal diameter and slightly is less than plunger pump rotor circumference hole diameter, and third cylinder diameter is greater than plunger pump rotor circumference hole diameter and slightly is less than mould circumference hole diameter, and fourth cylinder diameter is greater than mould circumference hole diameter, this plunger pump rotor copper sheathing frock of impressing, and pressure equipment precision is high, efficient, maneuverability is strong, safe and reliable.
Description
Technical Field
The utility model relates to a frock technical field especially relates to a plunger pump rotor copper sheathing frock of impressing.
Background
The plunger pump is an important device of a hydraulic system, the working principle of the plunger pump depends on the reciprocating motion of a plunger in a cylinder body, the volume of a sealed working cavity changes to realize oil absorption and oil pressing, a plunger pump rotor is an essential important part in the plunger pump, the plunger pump rotor is usually of a porous cylindrical structure, and during use, a copper bush needs to be pressed in a rotor hole.
The existing rotor copper bush press-fitting mode usually depends on a worker to pre-place a copper bush in an orifice, then the copper bush is knocked or pressed by an oil press, whether the copper bush is uniformly stressed when pressed cannot be guaranteed by the mode, so that the press-fitting precision is difficult to guarantee, the safety of the press-fitting process is low, a porous structure needs to be pressed one by one, the efficiency is low, and the press-fitting process cannot be controlled.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's defect, provide a frock is impressed to pressure equipment precision height, efficient, maneuverability is strong, safe and reliable's plunger pump rotor copper sheathing.
The utility model discloses a realize through following technical scheme: the utility model provides a frock of impressing of plunger pump rotor copper sheathing, includes base, reference column, guide post, pressure equipment mould, prevents pivot and pressure equipment axle, base, reference column and the coaxial setting of guide post, reference column bottom fixed connection in on the base, the locating hole has been seted up on reference column upper portion, the guide post bottom connect in the locating hole, the guide post is used for prepositioning plunger pump rotor and pressure equipment mould, pressure equipment mould is the cylinder, the mould centre bore has been seted up at pressure equipment mould center, the guide post diameter slightly is less than plunger pump rotor centre bore diameter and mould centre bore diameter.
For improving the pressure equipment precision, the pressure equipment mould has seted up the mould circumference hole that round and plunger pump rotor circumference hole correspond along circumference, mould circumference hole diameter slightly is greater than plunger pump rotor circumference hole diameter, prevent that the pivot has the cylinder that four sections diameters increase progressively, first cylinder diameter slightly is less than the copper sheathing internal diameter for the relative position of rotor and pressure equipment mould when being fixed with the copper sheathing, second cylinder diameter is greater than the copper sheathing internal diameter and slightly is less than plunger pump rotor circumference hole diameter, is used for the relative position of rotor and pressure equipment mould when fixed no copper sheathing, and third cylinder diameter is greater than plunger pump rotor circumference hole diameter and slightly is less than mould circumference hole diameter, and fourth cylinder diameter is greater than mould circumference hole diameter.
In order to ensure the operability of press mounting, the diameter of the press mounting shaft is larger than the inner diameter of the copper sleeve and slightly smaller than the diameter of the circumferential hole of the die.
In order to ensure the positioning and press-fitting precision and improve the operability, the gap between the positioning or press-fitting shaft and the matching hole is not too large or too small, preferably, the diameter of the guide column is 0.1-0.15 mm smaller than the diameter of the central hole of the plunger pump rotor and the diameter of the central hole of the die, the diameter of the first cylinder is 0.1-0.15 mm smaller than the inner diameter of the copper sleeve, the diameter of the second cylinder is 0.1-0.15 mm smaller than the diameter of the circumferential hole of the plunger pump rotor, and the diameter of the third cylinder is 0.1-0.15 mm smaller than the diameter of the circumferential hole of the die.
In order to prevent the rotor to be pressed from being knocked and damaged by the guide post when the rotor is assembled, a nylon sleeve is sleeved at the upper end of the guide post.
In order to improve the guidance and the stability of the press mounting process, the lower end of the press mounting shaft is provided with a guide boss, and the diameter of the guide boss is slightly smaller than the inner diameter of the copper sleeve.
Preferably, the diameter of the guide boss is 0.1-0.15 mm smaller than the inner diameter of the copper sleeve.
In order to improve the press-fitting efficiency, the number of the press-fitting shafts is preferably 8, and more or fewer press-fitting shafts can be selected according to actual conditions.
In order to facilitate the tool to be connected to the workbench or the machine tool, the edge of the base is provided with a base mounting groove.
The utility model has the advantages that: this frock of impressing of plunger pump rotor copper sheathing through the design with treat that pressure equipment plunger pump rotor paired pressure equipment mould and multistage structure prevent changeing the axle cooperation and use, improved the precision and the reliability of copper sheathing pressure equipment, guaranteed the quality of part, through designing a plurality of pressure equipment axles, improved pressure equipment efficiency, and this frock of impressing of plunger pump rotor copper sheathing simple structure, maneuverability are strong, safe in utilization.
Drawings
Fig. 1 is an exploded view of the plunger pump rotor copper bush press-in tool of the present invention;
fig. 2 is a schematic structural view of the plunger pump rotor copper bush press-in tool of the present invention;
fig. 3 is a top view of the plunger pump rotor copper bush press-in tool of the present invention;
FIG. 4 is a rotated view taken along line A-A of FIG. 3;
in the figure: 1. a base; 11. a base mounting groove; 2. a positioning column; 3. a guide post; 4. pressing a mould; 41. a central hole of the die; 42. a die circumferential hole; 5. a rotation prevention shaft; 6. pressing and mounting the shaft; 7. a plunger pump rotor; 71. a central hole of a plunger pump rotor; 72. a plunger pump rotor circumferential hole; 8. a copper sleeve; 9. a nylon sleeve.
Detailed Description
The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the protection scope of the present invention can be clearly and clearly defined. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.
As shown in fig. 1 to 3, the plunger pump rotor copper bush press-in tool comprises a base 1, a positioning column 2, a guide column 3, a press-fitting mold 4, an anti-rotation shaft 5 and a press-fitting shaft 6, wherein the base 1, the positioning column 2 and the guide column 3 are coaxially arranged, a base mounting groove 11 is formed in the edge of the base 1 and used for mounting the base on a working platform, the bottom of the positioning column 2 is fixedly connected to the base 1, a positioning hole 21 is formed in the upper portion of the positioning column 2, the bottom of the guide column 3 is connected to the positioning hole 21, the press-fitting mold 4 is a cylinder, a mold center hole 41 is formed in the center of the press-fitting mold 4, the diameter of the guide column 3 is smaller than the diameter of a plunger pump rotor center hole 71 and the diameter of the mold center hole 41 by 0.1 to 0.15mm, the guide column 3 is used for pre-positioning a plunger pump rotor and the press-fitting mold, a, the guide columns 3 with different diameters can be replaced according to the models of the rotors of the plunger pump to be pressed.
As shown in fig. 4, the press-fitting mold 4 is circumferentially provided with a circle of mold circumferential holes 42 corresponding to the plunger pump rotor circumferential holes 72, the diameter of the circumferential hole 42 of the die is slightly larger than that of the circumferential hole 72 of the plunger pump rotor, the anti-rotation shaft 5 is provided with four sections of cylinders with gradually increased diameters, the diameter of the first cylinder 51 is 0.1-0.15 mm smaller than the inner diameter of the copper sleeve 8, the diameter of the second cylinder 52 is larger than the inner diameter of the copper sleeve 8 and is 0.1-0.15 mm smaller than the diameter of the circumferential hole 72 of the plunger pump rotor, the diameter of the third cylinder 53 is larger than the diameter of the circumferential hole 72 of the plunger pump rotor and is 0.1-0.15 mm smaller than the diameter of the circumferential hole 42 of the die, the diameter of the fourth cylinder 52 is larger than the diameter of the circumferential hole 42 of the die, the diameter of the press-fit shaft 6 is greater than the inner diameter of the copper sleeve 8 and slightly smaller than the diameter of the circumferential hole 42 of the die, the lower end of the press-fit shaft 6 is provided with a guide boss 61, and the diameter of the guide boss 61 is smaller than the inner diameter of the copper sleeve 8 by 0.1-0.15 mm.
When the plunger pump rotor copper bush press-in tool is used, firstly, a plunger pump rotor 7 and a press-fitting mold 4 are sequentially sleeved on a base 1 along a guide column 3, a plunger pump rotor center hole 71 and a mold center hole 41 are matched with the guide column 3, then, a rotation preventing shaft 5 is used for fixing the relative positions of the plunger pump rotor 7 and the press-fitting mold 4, specifically, one end, close to a first cylinder 51, of the rotation preventing shaft 5 downwards extends into one mold circumferential hole 42, a second cylinder 52 is used for aligning and matching with one plunger pump rotor circumferential hole 72, and then the rotation preventing shaft is inserted into the mold circumferential hole until the lower plane of a fourth cylinder 54 abuts against the upper plane of the press-fitting mold 4, and position fixing is completed.
Then, the copper sleeves are placed into the other 8 circumferential holes 42 of the die one by one, 8 copper sleeves 8 are pressed and mounted simultaneously by 8 pressing and mounting shafts 6 and an oil press, in an initial state, a guide boss 61 of each pressing and mounting shaft 6 extends into each copper sleeve 8, the height difference between each pressing and mounting shaft 6 and each guide column 3 is the pressing depth of each copper sleeve 8, and after the pressing and mounting is completed, the pressing and mounting shafts 6 are flush with the upper ends of the guide columns 3.
Finally, the copper bush 8 needs to be pressed in the first plunger pump rotor circumferential hole 72 for positioning, and the specific method is that one end, close to the first cylinder 51, of the rotation preventing shaft 5 faces downwards, the rotation preventing shaft is inserted into any one of the corresponding plunger pump rotor circumferential holes 72 which are pressed and installed, the mold circumferential hole 42 penetrates through the rotation preventing shaft, the first cylinder 51 extends into the assembled copper bush 8 and is matched with the assembled copper bush 8, and then the first cylinder is inserted into the assembled copper bush until the lower plane of the fourth cylinder 54 abuts against the upper plane of the pressing and installing mold 4, and the position fixing of the plunger pump rotor 7 and the pressing and installing mold 4 is completed. And then, the press mounting of all the copper sleeves 8 is completed.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.
Claims (7)
1. The utility model provides a frock of impressing of plunger pump rotor copper sheathing which characterized in that: the press fitting die comprises a base (1), a positioning column (2), a guide column (3), a press fitting die (4), an anti-rotation shaft (5) and a press fitting shaft (6), wherein the base (1), the positioning column (2) and the guide column (3) are coaxially arranged, the bottom of the positioning column (2) is fixedly connected onto the base (1), a positioning hole (21) is formed in the upper part of the positioning column (2), the bottom of the guide column (3) is connected into the positioning hole (21), the press fitting die (4) is a cylinder, a die center hole (41) is formed in the center of the press fitting die (4), the diameter of the guide column (3) is slightly smaller than the diameter of a plunger pump rotor center hole (71) and the diameter of a die center hole (41), a circle of die circumferential hole (42) corresponding to the plunger pump rotor circumferential hole (72) is formed in the press fitting die (4) along the circumferential direction, and the diameter of the die circumferential hole (, prevent pivot (5) and have the cylinder that four sections diameters increase progressively, first cylinder (51) diameter slightly is less than copper sheathing (8) internal diameter, and second cylinder (52) diameter is greater than copper sheathing (8) internal diameter and slightly is less than plunger pump rotor circumference hole (72) diameter, and third cylinder (53) diameter is greater than plunger pump rotor circumference hole (72) diameter and slightly is less than mould circumference hole (42) diameter, and fourth cylinder (54) diameter is greater than mould circumference hole (42) diameter, pressure equipment axle (6) diameter is greater than copper sheathing (8) internal diameter and slightly is less than mould circumference hole (42) diameter.
2. The plunger pump rotor copper bush frock of impressing of claim 1, characterized in that: guide post (3) diameter ratio plunger pump rotor centre bore (71) diameter with mould centre bore (41) diameter is 0.1 ~ 0.15mm less, first cylinder (51) diameter ratio copper sheathing (8) internal diameter is 0.1 ~ 0.15mm less, second cylinder (52) diameter ratio plunger pump rotor circumference hole (72) diameter is 0.1 ~ 0.15mm less, third cylinder (53) diameter ratio mould circumference hole (42) diameter is 0.1 ~ 0.15mm less.
3. The plunger pump rotor copper bush frock of impressing of claim 1, characterized in that: the upper end of the guide post (3) is sleeved with a nylon sleeve (9).
4. The plunger pump rotor copper bush frock of impressing of claim 1, characterized in that: the lower end of the press-fitting shaft (6) is provided with a guide boss (61), and the diameter of the guide boss (61) is slightly smaller than the inner diameter of the copper sleeve (8).
5. The plunger pump rotor copper bush frock of impressing of claim 4, characterized in that: the diameter of the guide boss (61) is 0.1-0.15 mm smaller than the inner diameter of the copper sleeve (8).
6. The plunger pump rotor copper bush frock of impressing of claim 1, characterized in that: the number of the press-fitting shafts (6) is 8.
7. The plunger pump rotor copper bush frock of impressing of claim 1, characterized in that: the edge of the base (1) is provided with a base mounting groove (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020715227.5U CN212330262U (en) | 2020-04-30 | 2020-04-30 | Plunger pump rotor copper sleeve frock of impressing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020715227.5U CN212330262U (en) | 2020-04-30 | 2020-04-30 | Plunger pump rotor copper sleeve frock of impressing |
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| Publication Number | Publication Date |
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| CN212330262U true CN212330262U (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020715227.5U Active CN212330262U (en) | 2020-04-30 | 2020-04-30 | Plunger pump rotor copper sleeve frock of impressing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113664505A (en) * | 2021-09-14 | 2021-11-19 | 东莞市三惠机械有限公司 | Copper bush pressing system and method |
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2020
- 2020-04-30 CN CN202020715227.5U patent/CN212330262U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113664505A (en) * | 2021-09-14 | 2021-11-19 | 东莞市三惠机械有限公司 | Copper bush pressing system and method |
| CN113664505B (en) * | 2021-09-14 | 2022-12-13 | 东莞市三惠机械有限公司 | Copper bush pressing system and method |
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