CN201106622Y - Press combined bearing - Google Patents
Press combined bearing Download PDFInfo
- Publication number
- CN201106622Y CN201106622Y CNU2007200446022U CN200720044602U CN201106622Y CN 201106622 Y CN201106622 Y CN 201106622Y CN U2007200446022 U CNU2007200446022 U CN U2007200446022U CN 200720044602 U CN200720044602 U CN 200720044602U CN 201106622 Y CN201106622 Y CN 201106622Y
- Authority
- CN
- China
- Prior art keywords
- bearing
- sliding bearing
- connecting rod
- forcing press
- bent axle
- 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
Links
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- Shafts, Cranks, Connecting Bars, And Related Bearings (AREA)
Abstract
The utility model discloses a forcing press combination bearing used on the forcing press crank connecting link of metal forming mechanical equipment. The combination bearing are assembled by a rolling bearing, a sliding bearing, a gland bush, a distance bushing and other relative fastening pieces. The sliding bearing does not bear force when a forcing press is in idle running and virtual travel, thereby greatly lowering the friction work of the sliding bearing. When the forcing press is in the pressing process, the sliding bearing and the rolling bearing bear load together, thereby fully bringing the carrying capacity of the sliding bearing into play, and being applicable to the running up of the forcing press. The combination bearing is reliable and has long service life, low manufacture cost, compact structure, and convenient popularization and use.
Description
Technical field
The utility model relates to a kind of forging equipment, is specifically related to be installed in the combination bearing between press crankshaft, the connecting rod.
Background technique
At present, sliding bearing is adopted in high speed pressure machine crankshaft and connecting rod joint more, also claims axle sleeve, bearing shell.In order to guarantee the bent axle favorable rigidity, the affluence amount in the design is generally big than ordinary press, so just makes the bent axle diameter dimension more many greatly than the size of ordinary press.If still adopt sliding bearing, must strengthen the surface friction drag that produces in the process of running up, the insufficient lubrication of sliding bearing, press machine is when running up, the bearing load that frequently withstands shocks, the anti-fatigue ability of material and seizure resistance, compliance, embedding are hidden sexual needs and are further improved, and have increased manufacture cost greatly, and working life is low.Sliding bearing has higher coaxality requirement to the bent axle support zone on the technology, if coaxality is poor, can cause the overheating in the machine tool running process equally, the bearing excessive wear occurs so that phenomenons such as " burning to death ".
Summary of the invention
The purpose of this utility model is the above-mentioned shortcoming that overcomes prior art, and a kind of press compound bearing is provided.It is that two rolling bearings are installed at the connecting rod two ends, the middle sliding bearing of installing.
The utility model is realized with following technological scheme: a kind of press compound bearing comprises press crankshaft, connecting rod and is installed in bearing between the crankshaft-and-connecting-rod surface of contact that it is characterized in that: described bearing is a combination bearing.
Described combination bearing comprises rolling bearing, sliding bearing, bearing gland, spacer and attachment screw, packing ring; Two rolling bearings are installed between the counterbore at described connecting rod two ends and the external cylindrical surface of bent axle, and two 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 tubular shape sliding bearing drive fit is sleeved in the hole at connecting rod middle part, and both ends of the surface are near the interior ring end face of rolling bearing; Keep certain clearance between the endoporus of described sliding bearing and the external cylindrical surface of bent axle.
Good effect of the present utility model is:
1, can satisfy running up of speed change press machine, reach more than the 500spm.
2, because sliding bearing does not stress long service life, good reliability when press machine air transport, commentaries on classics idle stroke.
3, the combination bearing low cost of manufacture is easy to utilize.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Accompanying drawing is the utility model structural drawing.
Among the figure: 1, bent axle, 2, connecting rod, 3, bearing gland, 4, rolling bearing, 5, sliding bearing, 6, spacer, 7, screw, packing ring.
As shown in drawings, a kind of press compound bearing, comprise press crankshaft 1, connecting rod 2 and be installed in bent axle 1 and connecting rod 2 surface of contact between bearing, it is characterized in that: described bearing is a combination bearing.
Described combination bearing comprises rolling bearing 4, sliding bearing 5, bearing gland 3, spacer 6 and attachment screw, packing ring 7; 4, two bearing glands of two rolling bearings 3 are installed between the counterbore at described connecting rod 2 two ends and the external cylindrical surface of bent axle 1 to be connected with the end face of connecting rod 2 by screw, packing ring 7; Described spacer 6 is sleeved on the root of bent axle 1, and described tubular shape sliding bearing 5 drive fits are sleeved in the hole at connecting rod 2 middle parts, and both ends of the surface are near the interior ring end face of rolling bearing 4; Keep certain clearance between the external cylindrical surface of the endoporus of described sliding bearing 5 and bent axle 1.
As shown in drawings, when lathe no load running and idle stroke, sliding bearing 5 contacts hardly with bent axle 1, has reduced the frictional work of sliding bearing 5, improves the working life and the reliability of sliding bearing 5 greatly.In stamping process, rolling bearing 4 load that at first is hit, little resiliently deformable takes place after, with sliding bearing 5 bearing loads, can give full play to the bearing capacity of sliding bearing 5.Can adapt to running up of press machine, facts have proved that running speed is more than 500spm.The reliability and the life-span of machine tool running are greatly improved.Reduce the manufacture cost of sliding bearing simultaneously.The utility model compact structure is convenient to promote the use of.
Claims (2)
1. press compound bearing, comprise press crankshaft (1), connecting rod (2) and be installed in bent axle (1) and connecting rod (2) surface of contact between bearing, it is characterized in that: described bearing is a combination bearing.
2. press compound bearing according to claim 1 is characterized in that: described combination bearing comprises rolling bearing (4), sliding bearing (5), bearing gland (3), spacer (6) and attachment screw, packing ring (7); Two rolling 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, packing ring (7); Described spacer (6) is sleeved on the root of bent axle (1), and described tubular shape sliding bearing (5) drive 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 rolling bearing (4); Keep the gap between the external cylindrical surface of the endoporus of described sliding bearing (5) and bent axle (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200446022U CN201106622Y (en) | 2007-10-18 | 2007-10-18 | Press combined bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200446022U CN201106622Y (en) | 2007-10-18 | 2007-10-18 | Press combined bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201106622Y true CN201106622Y (en) | 2008-08-27 |
Family
ID=39958422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200446022U Expired - Fee Related CN201106622Y (en) | 2007-10-18 | 2007-10-18 | Press combined bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201106622Y (en) |
-
2007
- 2007-10-18 CN CNU2007200446022U patent/CN201106622Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080827 Termination date: 20111018 |