CN202971633U - Universal joint for three-roll grinding machine - Google Patents
Universal joint for three-roll grinding machine Download PDFInfo
- Publication number
- CN202971633U CN202971633U CN 201220697397 CN201220697397U CN202971633U CN 202971633 U CN202971633 U CN 202971633U CN 201220697397 CN201220697397 CN 201220697397 CN 201220697397 U CN201220697397 U CN 201220697397U CN 202971633 U CN202971633 U CN 202971633U
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- CN
- China
- Prior art keywords
- universal joint
- grinding machine
- roll grinding
- protruding
- forks
- 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 - Lifetime
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Abstract
The utility model discloses a universal joint for a three-roll grinding machine. The universal joint for the three-roll grinding machine comprises two protruding forks which are respectively connected with a transmission shaft. The two protruding forks are connected through a cross shaft and a needle roller bearing. The two protruding forks can respectively rotate around the cross shaft in the process of automatic rotation. The universal joint for the three-roll grinding machine has the advantages that the universal joint is used for eliminating instability caused by a big gap which is formed by axial float of a main shaft and abrasion of a key pin, so that products can be prevented from being folded and product quality is improved.
Description
Technical field
The utility model relates to a kind of Universal connector for three-roll thread rolling machine.
Background technique
The three-roll thread rolling machine driving section connects, and traditional approach adopts and is processed into transmission shaft 1 one ends spherical as shown in Figure 1, its front end in contact rotation spherical is inlayed with the copper packing 3 that is processed as the part sphere, then with pin 4 and key 2, two transmission shafts are linked togather, in use
Because copper packing 3 should bear some strength, also to play the sliding bearing effect, so copper packing not long just wearing and tearing 3 service times form the gap, cause the axle axial float; Key 2 also will move axially around the transmission shaft centre of sphere in the process of transmitting torque simultaneously, key 2, pin 4, and axle 5 inside grooves formation easy to wear gap all, quality of product changes greatly, threaded folding also often occurs, thereby affect quality of product, the worker spends the plenty of time adjustment every day.This namely designs the basic reason of using Universal connector, improves the quality of products and productivity thereby fundamentally play.
The model utility content
The utility model has overcome shortcoming of the prior art, and a kind of Universal connector for three-roll thread rolling machine is provided.
The technical solution of the utility model is: a kind of Universal connector for three-roll thread rolling machine, comprise respectively and two protruding forks of propeller shaft couplings, and connect with cross axle and needle bearing between two protruding forks.
Two protruding forks rotate around cross axle respectively in rotation.
Compared with prior art, the utility model has the advantages that: by adopting Universal connector of the present utility model, can eliminate unstable that the excesssive gap that causes of main shaft axial float and key pin wearing and tearing causes, avoid product to produce folding, improve quality of product.
Description of drawings
The utility model will illustrate by example and with reference to the mode of accompanying drawing, wherein:
Fig. 1 is two traditional propeller shaft couplings mode plan views;
Fig. 2 is Universal connector connecting mode plan view of the present utility model.
Embodiment
A kind of Universal connector for three-roll thread rolling machine as shown in Figure 2, comprising: epirelief fork 21, cross axle 22, needle bearing 23, lower protruding fork 24 etc., wherein:
Upper and lower protruding fork 21 and 24 respectively with propeller shaft couplings, connect with cross axle 22 and needle bearing 23 between two protruding forks, upper and lower protruding fork 21 and 24 rotates around cross axle 22 respectively in rotation, eliminated in former mechanism the bulb transmission shaft in pin rotates, key easy to wear will move forward and backward in the transmission axial trough and cause key and the wearing and tearing of transmission axial trough, while has also eliminated copper packing easy to wear and pin causes the transmission shaft axial float, thereby thoroughly solved the product folding problem aspect equipment, and obtained large increase aspect the product appearance quality.
working principle of the present utility model is: take full advantage of the Universal connector principle, all must adopt two Universal connectors in the utilization of Universal connector, be exactly that transmission shaft two ends respectively have a universal joint, its effect is that the angle at transmission shaft two ends is equated, guarantee that output shaft equates all the time with the instantaneous angular velocity that axle enters axle, but because the front end spaces of transmission shaft of machine tool 1 is at full stretch, three output terminals of lathe form angle simultaneously, not parallel with transmission shaft 5, can not use single Universal connector, because three transmission shaft 5 rotational velocity are the same, guarantee the rotational velocity of three transmission shaft 1 output terminals too, but the lathe rotational velocity is fast, quality of product requires high, the protruding fork of outsourcing due to the casting and machining error large, form and lay particular stress on more greatly, form at the volley very large centrifugal force, have a strong impact on the product appearance quality, angle is also undesirable simultaneously, so of the present utility model coming into operation can overcome the defects of prior art.
Claims (2)
1. Universal connector that is used for three-roll thread rolling machine is characterized in that: comprising: with two protruding forks of propeller shaft couplings, connect with cross axle and needle bearing between two protruding forks respectively.
2. a kind of Universal connector for three-roll thread rolling machine according to claim 1, it is characterized in that: two protruding forks rotate around cross axle respectively in rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220697397 CN202971633U (en) | 2012-12-17 | 2012-12-17 | Universal joint for three-roll grinding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220697397 CN202971633U (en) | 2012-12-17 | 2012-12-17 | Universal joint for three-roll grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202971633U true CN202971633U (en) | 2013-06-05 |
Family
ID=48512712
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220697397 Expired - Lifetime CN202971633U (en) | 2012-12-17 | 2012-12-17 | Universal joint for three-roll grinding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202971633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953659A (en) * | 2014-04-08 | 2014-07-30 | 北京控制工程研究所 | Cross shaft universal joint with angle measuring function |
-
2012
- 2012-12-17 CN CN 201220697397 patent/CN202971633U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103953659A (en) * | 2014-04-08 | 2014-07-30 | 北京控制工程研究所 | Cross shaft universal joint with angle measuring function |
| CN103953659B (en) * | 2014-04-08 | 2016-03-30 | 北京控制工程研究所 | A kind of Hooke's joint with angle measurement |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130605 |