CN202883353U - Clamp device of cross head pin - Google Patents
Clamp device of cross head pin Download PDFInfo
- Publication number
- CN202883353U CN202883353U CN 201220524139 CN201220524139U CN202883353U CN 202883353 U CN202883353 U CN 202883353U CN 201220524139 CN201220524139 CN 201220524139 CN 201220524139 U CN201220524139 U CN 201220524139U CN 202883353 U CN202883353 U CN 202883353U
- Authority
- CN
- China
- Prior art keywords
- cross head
- cross
- crosshead
- clamp device
- pin
- 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 discloses a clamp device of a cross head pin. The clamp device of the cross head pin comprises cross fittings and cross head pins. Positioning square grooves are respectively and correspondingly processed on an upper contact surface and a lower contact surface of the cross fittings and the cross head pins, each positioning square groove is provided with a positioning block, and the outside surface of the each positioning block is provided with a baffle. Through holes and stepped holes are formed in the cross head pins. The baffles of two ends are tensioned and connected through a bolt and nuts. The clamp device of the cross head pin has the advantages that cylinders are arranged on mutually cooperated positions between the cross fittings and the cross head pins, the cross head pins are fixed on the cross fittings through the positioning blocks, the long bolt, the nuts and a pressing plate, and one pair of bolt and nuts and two positioning blocks are needed to fix the cross head pins, so the clamp device of the cross head pin improves assembly efficiency largely, and is simple in structure, convenient to install and demount, and suitable for products which are compact in structure and narrow in space.
Description
Technical field
The utility model belongs to the manufacturing technology field of reciprocating plunger pump, relates to a kind of securing means of crosshead pin.
Background technique
Reciprocating plunger pump all adopts the connecting rod slider structure usually, and namely will rotatablely move by connecting rod is converted into the to-and-fro motion of crosshead.And crosshead pin is exactly the tie that connects connecting rod and crosshead, plays the effect of accepting transition, and it must be fixed, and requires to install simply easy operating.
Crosshead pin fastening structure on the present plunger pump, such as Fig. 1, adopt two lock pins that crosshead pin is fixed, with pull bar lock pin is compressed, the structure deficiency of this kind mode is installing/dismounting inconvenience, must first pull bar be pulled down during dismounting, and take out lock pin with instrument, then could take out crosshead pin, inefficiency.
Summary of the invention
The purpose of this utility model provides a kind of securing means of crosshead pin, has solved installing/dismounting inconvenience in the prior art, ineffective problem.
The technological scheme that the utility model adopts is, a kind of securing means of crosshead pin, comprise crosshead and crosshead pin, a location of the corresponding processing of surface of contact difference square groove about crosshead and crosshead pin, each location is equipped with a positioning block in square groove, is provided with a baffle plate at the outer surface of each positioning block; Simultaneously have through hole and step hole at crosshead pin, the baffle plate at two ends connects by bolt and nut tension thereof.
The beneficial effects of the utility model are, be set to crosshead and the crosshead pin place of cooperatively interacting cylindrical, by positioning block, stay bolt, nut and pressing plate crosshead pin is fixed on the crosshead, and only need pair of bolts nut and two positioning blocks crosshead pin can be fixed, greatly improved efficiency of assembling, simple in structure, easy installation and removal, be specially adapted to compact structure, the product of narrow space.
Description of drawings
Fig. 1 is the fastening structure schematic representation of the crosshead pin on the existing plunger pump;
Fig. 2 is the fastening structure schematic representation of crosshead pin of the present utility model;
Fig. 3 is the sectional view of Fig. 2.
Among the figure, 1. crosshead, 2. crosshead pin, 3. connecting rod, 4. baffle plate, 5. bolt, 6. nut, 7. positioning block, 8 lock pins, 9 pull bars.
Embodiment
With reference to Fig. 1, the fastening structure of the crosshead pin on the existing plunger pump is that the crosshead pin 2 in the crosshead 1 radially is provided with 8, two groups of lock pins 8 of two groups of lock pins and is sleeved in the crosshead 1, the other end of two groups of lock pins 8 is fixed by pull bar 9, and pull bar 9 is connected with crosshead 1 by bolt.
With reference to Fig. 2, Fig. 3, fastening structure of the present utility model is, at crosshead 1 an and crosshead pin surface of contact location of corresponding processing square groove respectively about in the of 2, in each location square groove a positioning block 7 is installed, outer surface at each positioning block 7 is provided with a baffle plate 4, simultaneously have through hole and step hole at crosshead pin 2, the baffle plate 4 at two ends connects by bolt 5 and nut 6 tensions thereof.
When the utility model device is installed, at first on crosshead 1 and crosshead pin 2, process respectively the location square groove, as shown in Figure 2, be used for installing positioning block 7.During assembling, crosshead pin 2 is passed crosshead 1 and connecting rod 3, and the location square groove on crosshead 1 and the crosshead pin 2 aligned, then the positioning block 7 of packing in the square groove in the location, pressing baffle plate 4 compresses positioning block 7, bolt 5 is passed the endoporus of two baffle plates 4 and crosshead pin 2, go up jack panel 6 at last, just finished the assembling (as shown in Figure 3) of crosshead pin fastening structure.In this mounting structure, two positioning blocks 7 have limited rotatablely moving of crosshead pin 2, and two baffle plates 4 had both compressed two positioning blocks 7 and prevented its landing, had limited again moving axially of crosshead pin 2, had realized the purpose of fastening crosshead pin.
Claims (2)
1. the securing means of a crosshead pin, it is characterized in that: comprise crosshead (1) and crosshead pin (2), at crosshead (1) and crosshead pin (a 2) surface of contact location of corresponding processing square groove respectively up and down, each location is equipped with a positioning block (7) in square groove, is provided with a baffle plate (4) at the outer surface of each positioning block (7); Simultaneously have through hole and step hole at crosshead pin (2), the baffle plate at two ends (4) connects by bolt (5) and nut (6) tension thereof.
2. the securing means of crosshead pin according to claim 1, it is characterized in that: described baffle plate (4) is processed into round hat, and has bolt hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524139 CN202883353U (en) | 2012-10-12 | 2012-10-12 | Clamp device of cross head pin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220524139 CN202883353U (en) | 2012-10-12 | 2012-10-12 | Clamp device of cross head pin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883353U true CN202883353U (en) | 2013-04-17 |
Family
ID=48074788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220524139 Expired - Fee Related CN202883353U (en) | 2012-10-12 | 2012-10-12 | Clamp device of cross head pin |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202883353U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385195A (en) * | 2014-09-17 | 2015-03-04 | 宝鸡石油机械有限责任公司 | Frock clamp with drilling pump cross head pin and clamping method thereof |
-
2012
- 2012-10-12 CN CN 201220524139 patent/CN202883353U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104385195A (en) * | 2014-09-17 | 2015-03-04 | 宝鸡石油机械有限责任公司 | Frock clamp with drilling pump cross head pin and clamping method thereof |
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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: 20130417 Termination date: 20151012 |
|
| EXPY | Termination of patent right or utility model |