CN101837645A - Novel connecting rod combined bearing of pressing machine - Google Patents
Novel connecting rod combined bearing of pressing machine Download PDFInfo
- Publication number
- CN101837645A CN101837645A CN200910030144A CN200910030144A CN101837645A CN 101837645 A CN101837645 A CN 101837645A CN 200910030144 A CN200910030144 A CN 200910030144A CN 200910030144 A CN200910030144 A CN 200910030144A CN 101837645 A CN101837645 A CN 101837645A
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- bearing
- connecting rod
- bent axle
- pressing machine
- needle
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Abstract
The invention discloses a novel connecting rod combined bearing of a pressing machine. The novel connecting rod combined bearing comprises crank shaft, a connecting rod and a bearing arranged between the crank shaft and a connecting rod contact surface, wherein the bearing is a combined bearing. The combined bearing comprises annular ball bearings, a needle roller bearing, bearing glands, a spacer sleeve, a fitting screw and a washer, wherein two annular ball bearings are arranged between counter bores at two ends of the connecting rod and an outside cylinder surface of the crank shaft; two bearing glands are connected with end faces of the connecting rod through the screws and the washer; the spacer sleeve is sleeved on the root part of the crank shaft; the needle roller bearing is in tight fit with and is sleeved in a hole formed in the middle of the connecting rod; the two end faces of the connecting rod is tightly close to inner ring end faces of the annular ball bearings; and a certain gap is reserved between an inner hole of the needle roller bearing and the outside cylinder surface of the crank shaft.
Description
Technical field
The present invention relates to a kind of combination bearing, particularly a kind of novel connecting rod combined bearing of pressing machine.Belong to the press technologies field.
Technical background
At present, sliding bearing is adopted in high speed pressure machine crankshaft and connecting rod junction more, also claims axle sleeve, bearing shell.In order to guarantee the bent axle favorable rigidity, affluence amount in the design is generally big than ordinary press, so just make the bent axle diameter dimension more many greatly than the size of ordinary press, if still adopt sliding bearing, must strengthen the frictional resistance that produces in the process of running up, the insufficient lubrication of sliding bearing, forcing press is when running up, the bearing load that frequently withstands shocks, the anti-fatigue ability of material and seizure resistance, adaptability, embedding are hidden sexual needs and are further improved, increased manufacturing cost greatly, service life is low.Sliding bearing has higher axiality requirement to the bent axle support zone on the technology, if axiality is poor, can cause the overheating in the machine tool running process equally, the bearing inordinate wear occurs so that phenomenons such as " burning to death ".
Summary of the invention
The objective of the invention is to provide a kind of novel connecting rod combined bearing of pressing machine.It is that two radial ball bearings are installed at the connecting rod two ends, and needle bearing is installed in the centre, overcomes the above-mentioned defective of prior art.
Solving the technical scheme that its technical problem adopts is: a kind of novel connecting rod combined bearing of pressing machine comprises press crankshaft, connecting rod and is installed in bearing between the crankshaft-and-connecting-rod contact-making surface that it is characterized in that: described bearing is a combination bearing.Described combination bearing comprises radial ball bearing, needle bearing, bearing gland, spacer and attachment screw, packing ring; Two radial ball bearings are installed between the counterbore at described connecting rod two ends and the external cylindrical surface of bent axle, and two radial ball bearing glands are connected with the end face of connecting rod by screw, packing ring; Described spacer is sleeved on the root of bent axle, and described needle bearing tight fit is sleeved in the hole at connecting rod middle part, and both ends of the surface are pressed the interior annulus end face of radial ball bearing; Keep certain clearance between the endoporus of described needle bearing and the external cylindrical surface of bent axle.
Beneficial effect: can adapt to running up of forcing press, facts have proved that running speed is more than 700spm.The reliability and the life-span of machine tool running are greatly improved.Reduce the manufacturing cost of needle bearing simultaneously.Effectively solved the manufacturing cost height, service life is low, easily causes axiality poor, causes overheating in the machine tool running process and the bearing excessive wear occurs so that the defective of phenomenons such as " burning to death ".
Description of drawings
Accompanying drawing is a structure chart of the present invention.
Shown in the figure: 1, bent axle; 2, connecting rod; 3, bearing gland; 4, radial ball bearing; 5, needle bearing; 6, spacer; 7, screw; 8, packing ring.
The specific embodiment
As shown in drawings, comprise by bent axle (1), connecting rod (2) and be installed in bent axle (1) and connecting rod (2) contact-making surface between bearing, it is characterized in that: described bearing is a combination bearing.Described combination bearing comprise radial ball bearing (4), needle bearing (5), bearing gland (3, spacer (6) and attachment screw (7), packing ring (8); Two radial ball bearings (4) are installed between the counterbore at described connecting rod (2) two ends and the external cylindrical surface of bent axle (1), and two bearing glands (3) are connected with the end face of connecting rod (2) by screw (7), packing ring (8); Described spacer (6) is sleeved on the root of bent axle (1), and described needle bearing (5) tight fit is sleeved in the hole at connecting rod (2) middle part, and both ends of the surface are near the interior ring end face of radial ball bearing (4); Keep certain clearance between the external cylindrical surface of the endoporus of described needle bearing (5) and bent axle (1).When lathe dry run and idle stroke, needle bearing (5) contacts hardly with bent axle (1), has reduced the frictional work of needle bearing (5), improves the service life and the reliability of needle bearing (5) greatly.In punching course, radial ball bearing (4) load that at first is hit, little strain takes place after, with needle bearing (5) bearing load, can give full play to the bearing capacity of needle bearing (5).
Claims (4)
1. novel connecting rod combined bearing of pressing machine is characterized in that: comprise by bent axle (1), connecting rod (2) and be installed in bent axle (1) and connecting rod (2) contact-making surface between bearing, described bearing is a combination bearing.Described combination bearing comprises radial ball bearing (4), needle bearing (5), bearing gland (3), spacer (6) and attachment screw (7), packing ring (8); Two radial ball bearings (4) are installed between the counterbore at described connecting rod (2) two ends and the external cylindrical surface of bent axle (1), and two bearing glands (3) are connected with the end face of connecting rod (2) by screw (7), packing ring (8).
2. a kind of novel connecting rod combined bearing of pressing machine according to claim 1, it is characterized in that: described spacer (6) is sleeved on the root of bent axle (1), described needle bearing (5) tight fit is sleeved in the hole at connecting rod (2) middle part, and both ends of the surface are near the interior ring end face of radial ball bearing (4).
3. a kind of novel connecting rod combined bearing of pressing machine according to claim 1 and 2 is characterized in that: keep certain clearance between the external cylindrical surface of the endoporus of described needle bearing (5) and bent axle (1).When lathe dry run and idle stroke, needle bearing (5) contacts hardly with bent axle (1), has reduced the frictional work of needle bearing (5), improves the service life and the reliability of needle bearing (5) greatly.
4. according to claim 1 or 3 described a kind of novel connecting rod combined bearing of pressing machine, it is characterized in that: in punching course, radial ball bearing (4) load that at first is hit, after little strain takes place, with needle bearing (5) bearing load, can give full play to the bearing capacity of needle bearing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910030144A CN101837645A (en) | 2009-03-19 | 2009-03-19 | Novel connecting rod combined bearing of pressing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910030144A CN101837645A (en) | 2009-03-19 | 2009-03-19 | Novel connecting rod combined bearing of pressing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101837645A true CN101837645A (en) | 2010-09-22 |
Family
ID=42741423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910030144A Pending CN101837645A (en) | 2009-03-19 | 2009-03-19 | Novel connecting rod combined bearing of pressing machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101837645A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649319A (en) * | 2011-02-26 | 2012-08-29 | 荣成金辰机械制造有限公司 | Novel press machine connecting rod structure |
| CN102825823A (en) * | 2011-06-16 | 2012-12-19 | 浙江威力锻压机械有限公司 | Combined bearing for quick press machine |
-
2009
- 2009-03-19 CN CN200910030144A patent/CN101837645A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102649319A (en) * | 2011-02-26 | 2012-08-29 | 荣成金辰机械制造有限公司 | Novel press machine connecting rod structure |
| CN102825823A (en) * | 2011-06-16 | 2012-12-19 | 浙江威力锻压机械有限公司 | Combined bearing for quick press machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20100922 |