CN202326169U - Anti-rotation device of cylinder piston rod of diaphragm pump - Google Patents
Anti-rotation device of cylinder piston rod of diaphragm pump Download PDFInfo
- Publication number
- CN202326169U CN202326169U CN 201120469308 CN201120469308U CN202326169U CN 202326169 U CN202326169 U CN 202326169U CN 201120469308 CN201120469308 CN 201120469308 CN 201120469308 U CN201120469308 U CN 201120469308U CN 202326169 U CN202326169 U CN 202326169U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- diaphragm pump
- rotation device
- piston
- gland
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an anti-rotation device of a cylinder piston rod of a diaphragm pump, and relates to an improvement on a structure of an anti-rotation device of a cylinder piston rod of a diaphragm pump. The utility model provides the anti-rotation device of the cylinder piston rod of the diaphragm pump. The anti-rotation device can improve the overall stability. The anti-rotation device of the cylinder piston rod of the diaphragm pump comprises a cavity of the diaphragm pump, wherein a cylinder sleeve is fixedly arranged on the cavity through connecting bolts and a gland, and a sealing gasket is arranged on the piston between the inside of the cylinder sleeve and the piston. The structural essential points are as follows: a guide block is arranged on the gland which is in contact with the piston rod of a piston, and an incision plane is arranged on the piston rod which is in contact with the guide block correspondingly.
Description
Technical field
the utility model relates to the improvement of diaphragm pump oil cylinder piston bar anti-rotation device structure.
Background technique
diaphragm pump oil cylinder is connected with the power end transmission unit through piston rod, and piston rod has only axial constraint along with power end transmission unit straight line motion on the piston rod, no radial constraint; In the time of in movement process and can produce rotation, destroy piston packing, thereby produce vibrations, oil pressure leakage phenomenon, destroy the whole stability of diaphragm pump.
The model utility content
the utility model is exactly to the problems referred to above, and a kind of diaphragm pump oil cylinder piston bar anti-rotation device that improves global stability is provided.
are in order to realize the above-mentioned purpose of the utility model; The utility model adopts following technological scheme; The utility model comprises the cavity of diaphragm pump, through connecting bolt, gland cylinder sleeve is fixed on the cavity, in the cylinder sleeve and the piston between the piston be provided with sealing gasket; Its structure outline gland is provided with guide pad with the gland that the piston rod of piston contacts, and is provided with the otch plane corresponding to the contacted piston rod of guide pad.
The beneficial effect of
the utility model: (1) the utility model may be used on a lot of new model diaphragm pumps, has protected owing to piston rod rotates the vibrations cause and the damage problem of piston rod end face, has guaranteed the diaphragm pump global stability.
(2) the utility model has retrained piston rod rotation radially, the wearing and tearing that alleviated piston packing, the working life of having improved seal ring through increasing guide block structure; Avoided the phenomenon of oil pressure short time leakage, reliable assurance is provided for reciprocating pump turns round continuously.
Machine tooling is convenient to owing to the utility model is simple in structure in
(3), is installed on convenient disassembly.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the right elevation of Fig. 1.
Embodiment
the utility model comprises the cavity 11 of diaphragm pump; Through connecting bolt 8, gland 5 cylinder sleeve 6 is fixed on the cavity 11; In the cylinder sleeve 6 and the piston 9 between the piston 9 be provided with sealing gasket 10; Gland 5 is provided with guide pad 3 with the gland 5 that the piston rod 7 of piston 9 contacts, and is provided with tangential plane 1 corresponding to guide pad 3 contacted piston rods 7.
the utility model piston rod 7 is in the straight line motion engineering, and the guide pad 3 through cylinder sleeve 6 glands 5 gives piston rod 7 radial constraints; When piston rod 7 rotated, guide pad 3 prevented its rotation, and protection sealing gasket 10 alleviates wearing and tearing, has prevented the oil pressure leakage.
can be provided with locating slot 4 by gland 5, are provided with guide pad 3 in the locating slot 4.
The gap that 0.1-0.2mm is arranged between
piston rod 7 otch planes 1 and the guide pad 3 guarantees that piston rod 7 is not rubbed.
are better to stablize guide pad 3, can the gland 5 of cylinder sleeve 6 is fixing through two bolts 2 side by side with guide pad 3.
Claims (4)
1. diaphragm pump oil cylinder piston bar anti-rotation device; The cavity (11) that comprises diaphragm pump; Through connecting bolt (8), gland (5) cylinder sleeve (6) is fixed on the cavity (11); In the cylinder sleeve (6) and the piston (9) between the piston (9) be provided with sealing gasket (10); It is characterized in that gland (5) is provided with guide pad (3) with the gland (5) that the piston rod (7) of piston (9) contacts, and is provided with tangential plane (1) corresponding to the contacted piston rod of guide pad (3) (7).
2. diaphragm pump oil cylinder piston bar anti-rotation device according to claim 1 is characterized in that gland (5) is provided with locating slot (4), is provided with guide pad (3) in the locating slot (4).
3. diaphragm pump oil cylinder piston bar anti-rotation device according to claim 1 is characterized in that having between piston rod (7) otch plane (1) and the guide pad (3) gap of 0.1-0.2mm.
4. diaphragm pump oil cylinder piston bar anti-rotation device according to claim 1 is characterized in that the gland (5) of cylinder sleeve (6) and guide pad (3) are fixing through two bolts (2) side by side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120469308 CN202326169U (en) | 2011-11-23 | 2011-11-23 | Anti-rotation device of cylinder piston rod of diaphragm pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120469308 CN202326169U (en) | 2011-11-23 | 2011-11-23 | Anti-rotation device of cylinder piston rod of diaphragm pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202326169U true CN202326169U (en) | 2012-07-11 |
Family
ID=46438151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120469308 Expired - Fee Related CN202326169U (en) | 2011-11-23 | 2011-11-23 | Anti-rotation device of cylinder piston rod of diaphragm pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202326169U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591082A (en) * | 2013-11-22 | 2014-02-19 | 中国工程物理研究院总体工程研究所 | Piston rod rotation prevention device of servo hydraulic cylinder |
-
2011
- 2011-11-23 CN CN 201120469308 patent/CN202326169U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591082A (en) * | 2013-11-22 | 2014-02-19 | 中国工程物理研究院总体工程研究所 | Piston rod rotation prevention device of servo hydraulic cylinder |
| CN103591082B (en) * | 2013-11-22 | 2016-02-10 | 中国工程物理研究院总体工程研究所 | A kind of piston rod rotation prevention device of servo hydraulic cylinder |
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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 |
Granted publication date: 20120711 Termination date: 20151123 |