CN203791369U - Device for molding pressing plate for oilfield drilling pump - Google Patents
Device for molding pressing plate for oilfield drilling pump Download PDFInfo
- Publication number
- CN203791369U CN203791369U CN201420147660.8U CN201420147660U CN203791369U CN 203791369 U CN203791369 U CN 203791369U CN 201420147660 U CN201420147660 U CN 201420147660U CN 203791369 U CN203791369 U CN 203791369U
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- China
- Prior art keywords
- pressing plate
- molding
- die
- gland
- cone
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- Expired - Fee Related
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Abstract
The utility model belongs to the field of oil equipment and specifically relates to a device for molding a pressing plate for an oilfield drilling pump. The device comprises a frame, a bottom die, a top die, a gland and a hydraulic cylinder; the lower end of the bottom die is fixed on the lower part of the frame by virtue of a fastener; the middle of the bottom die is provided with a cone-shaped table; the top die sleeves the periphery of the upper part of the bottom die; a tapered notch matched with the conical surface of the cone-shaped table is formed in the bottom of the top die; the gland is located above the top die and sleeves the top end of the bottom die; the hydraulic cylinder is mounted on the upper part of the frame; a cylinder rod of the hydraulic cylinder directly faces the gland. The device for molding the pressing plate is simple and reasonable in structure and mainly used for molding the pressing plate which is used in a piston assembly at the hydraulic end of the oilfield drilling pump; when the device is used, a circular-ring-shaped blank is directly put in the molding space which is formed by the cone-shaped table in the middle of the bottom die and the tapered notch in the bottom of the top die and then pressure is exerted to realize quick molding of the pressing plate; compared with a traditional pressing plate processing method, for the device, the utilization rate of materials can be increased and the waste of the raw materials can be reduced, and moreover, the molding rate is increased and the production efficiency also can be improved, and therefore, the device for molding the pressing plate is convenient for large-scale popularization and utilization.
Description
Technical field
The utility model relates to a kind of oil field drilling well pump pressing plate shaped device, belongs to oil equipment field.
Background technology
Pressing plate is the important component part of drilling pump fluid end piston assembly, and is consumable accessory, the huge market demand.Piston assembly forms (as shown in Figure 4) by piston core 12, piston cup 13, pressing plate 11 and jump ring 14, wherein piston cup 13 is for having the nitrile rubber of larger shore hardness, pressing plate 11 and jump ring 14 are pressed on piston cup 13 on piston core 12 by piston core 12 groove above, and the effect of pressing plate 11 is to prevent that piston cup 13 from axially coming off and increasing the uniformity of thrust from piston core 12.Its center platen 11 is a kind of butterfly structures, and as shown in Figure 4, external diameter position requires arc transition, prevents from scratching piston cup 13.Conventionally processing mode is first to forge into the forging stock 15 shown in Fig. 5, and by the method machine-shaping of machining, technical process is as follows: forging stock → roughing → heat treatment → fine finishining → surface treatment → check → warehouse-in.
By said method processing pressure plate, mainly there is following problem:
1, forging stock may be processed the forging defect of crackle;
2, stock utilization is low, and production cost is high;
3, mechanical processing difficulty is large, need to make special tooling, and production efficiency is low.
Also do not have at present good pressing plate shaped device can replace above-mentioned processing method.
Utility model content
According to above deficiency of the prior art, the technical problems to be solved in the utility model is: provide a kind of rational in infrastructure, easy to operate, enhance productivity and oil field drilling well pump pressing plate shaped device that ratio of briquetting is high.
Oil field drilling well pump pressing plate shaped device described in the utility model, comprise frame, bed die, backform, gland and hydraulic cylinder, the lower end of bed die is fixed on frame lower by fixture, middle part is the frustum of a cone, the periphery on top is set with backform, and the bottom of backform has the conical rebate coordinating with the taper surface of the frustum of a cone, and gland is positioned at backform top and is sleeved on bed die top, hydraulic cylinder is arranged on upper rack, and the cylinder bar of hydraulic cylinder is over against gland.
Operation principle and process:
While using this pressing plate shaped device, need to adopt annular blank, when pressing plate extrusion modling, first bed die is fixed to frame lower, then annular blank is placed on the frustum of a cone at bed die middle part, again backform is sleeved on bed die, make backform be positioned at annular blank top, afterwards gland is placed on to bed die top, make gland be positioned at backform top, last primer fluid cylinder pressure, the cylinder bar of hydraulic cylinder promotes gland and moves down, in folding process, annular blank generation crimp, and cooperatively interacting by the frustum of a cone at bed die middle part and the conical rebate of backform bottom, realize the crushing failure at high speed moulding of pressing plate.
Annular blank can after heat treatment adopt lathe to process by medium carbon alloy steel bar, and without forging into forging stock, on the one hand, process is simple, on the other hand, can also prevent from forging the forging defects such as crackle that occur in process, improves pressing plate Forming Quality.Afterwards, then by pressing plate shaped device, annular blank is applied to extruding force, realize the rapid shaping of pressing plate, compare traditional pressing plate processing method, can improve stock utilization, reduce waste of raw materials, can enhance productivity again, be convenient to large-scale promotion application.
The beneficial effect that the utility model compared with prior art had is:
This pressing plate shaped device is simple and reasonable, be mainly used in the machine-shaping of oil drilling pump hydraulic end piston assembly center platen, during use, directly annular blank is placed in to the molding space that the frustum of a cone at bed die middle part and the conical rebate of backform bottom form, apply the rapid shaping that extruding force can realize pressing plate, compare traditional pressing plate processing method, can improve stock utilization, reduce waste of raw materials, can improve ratio of briquetting and production efficiency again, be convenient to large-scale promotion application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation that application the utility model is realized pressing plate moulding;
Fig. 3 is the structural representation of annular blank;
Fig. 4 is the structural representation that pressing plate is applied to piston assembly;
Fig. 5 is the structural representation of forging stock.
In figure: 1, hydraulic cylinder; 2, frame; 3, cylinder bar; 4, gland; 5, backform; 6, annular blank; 7, fixture; 8, bed die; 9, conical rebate; 10, the frustum of a cone; 11, pressing plate; 12, piston core; 13, piston cup; 14, jump ring; 15, forging stock.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
As shown in Figure 1, this oil field drilling well pump comprises frame 2, bed die 8, backform 5, gland 4 and hydraulic cylinder 1 with pressing plate shaped device, the lower end of bed die 8 is by adopting several fastening bolts in fixture 7(the present embodiment) be fixed on frame 2 bottoms, middle part is the frustum of a cone 10, the periphery on top is set with backform 5, the bottom of backform 5 has the conical rebate 9 coordinating with the taper surface of the frustum of a cone 10, gland 4 is positioned at backform 5 tops and is sleeved on bed die 8 tops, hydraulic cylinder 1 is arranged on frame 2 tops, and the cylinder bar 3 of hydraulic cylinder 1 is over against gland 4.
Operation principle and process:
While using this pressing plate shaped device, need to adopt annular blank (its concrete shape as shown in Figure 3), when pressing plate extrusion modling, first bed die 8 is fixed to frame 2 bottoms, then annular blank 6 is placed on the frustum of a cone 10 at bed die 8 middle parts, again backform 5 is sleeved on bed die 8, make backform 5 be positioned at annular blank 6 tops, afterwards gland 4 is placed on to bed die 8 tops, make gland 4 be positioned at backform 5 tops, last primer fluid cylinder pressure 1, the cylinder bar 3 of hydraulic cylinder 1 promotes gland 4 and moves down, in folding process, annular blank generation crimp, and cooperatively interacting by the frustum of a cone 10 at bed die 8 middle parts and the conical rebate 9 of backform 5 bottoms, realize the crushing failure at high speed moulding of pressing plate, obtain pressing plate 11, as shown in Figure 2.
Annular blank 6 can after heat treatment adopt lathe to process by medium carbon alloy steel bar, and without forging into forging stock, on the one hand, process is simple, on the other hand, can also prevent from forging the forging defects such as crackle that occur in process, improves pressing plate Forming Quality.Afterwards, then by pressing plate shaped device, annular blank 6 is applied to extruding force, realize the rapid shaping of pressing plate 11, compare traditional pressing plate processing method, can improve stock utilization, reduce waste of raw materials, can improve ratio of briquetting and production efficiency again, be convenient to large-scale promotion application.
Claims (1)
1. an oil field drilling well pump pressing plate shaped device, it is characterized in that: comprise frame (2), bed die (8), backform (5), gland (4) and hydraulic cylinder (1), the lower end of bed die (8) is fixed on frame (2) bottom by fixture (7), middle part is the frustum of a cone (10), the periphery on top is set with backform (5), the bottom of backform (5) has the conical rebate (9) coordinating with the taper surface of the frustum of a cone (10), gland (4) is positioned at backform (5) top and is sleeved on bed die (8) top, hydraulic cylinder (1) is arranged on frame (2) top, the cylinder bar (3) of hydraulic cylinder (1) is over against gland (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147660.8U CN203791369U (en) | 2014-03-28 | 2014-03-28 | Device for molding pressing plate for oilfield drilling pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420147660.8U CN203791369U (en) | 2014-03-28 | 2014-03-28 | Device for molding pressing plate for oilfield drilling pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203791369U true CN203791369U (en) | 2014-08-27 |
Family
ID=51373643
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420147660.8U Expired - Fee Related CN203791369U (en) | 2014-03-28 | 2014-03-28 | Device for molding pressing plate for oilfield drilling pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203791369U (en) |
-
2014
- 2014-03-28 CN CN201420147660.8U patent/CN203791369U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20140827 Termination date: 20180328 |