CN202158074U - Double row chain wheel type slewing bearing - Google Patents
Double row chain wheel type slewing bearing Download PDFInfo
- Publication number
- CN202158074U CN202158074U CN2011202428275U CN201120242827U CN202158074U CN 202158074 U CN202158074 U CN 202158074U CN 2011202428275 U CN2011202428275 U CN 2011202428275U CN 201120242827 U CN201120242827 U CN 201120242827U CN 202158074 U CN202158074 U CN 202158074U
- Authority
- CN
- China
- Prior art keywords
- chain wheel
- double row
- row chain
- slewing bearing
- support ring
- 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 double row chain wheel type slewing bearing, which comprises an annular support ring. A double row chain wheel is sleeved outside the annular support ring, two rows of sprockets which are opposite to each other are distributed on the periphery of the double row chain wheel, two semi-circle ball grooves which are matched with each other are respectively arranged on the outer lateral wall of the annular support ring and the inner lateral wall of the double row chain wheel, and the two semi-circle ball grooves form a ball groove for placing a ball. The double row chain wheel type slewing bearing enables a teeth portion type of a ball-type slewing bearing to be changed into a sprocket structure, thereby being capable of improving application area of the slewing bearing, meeting requirements of a host machine for carrying capacity, and improving stability of chain wheel transmission.
Description
Technical field
The utility model relates to the pivoting support technical field, specifically belongs to the wheeled pivoting support of double strand chain.
Background technique
Pivoting support (also claiming turntable bearing) is as the important foundation element of engineering machinery and building machinery, and its use popularity is also promoting the development of pivoting support industry simultaneously.And according to existing technology, mostly the existing pivoting support kind of drive is gear transmission, and the high efficiency of its high bearing capacity and transmission is applied in each big heavy type and the light-duty machinery.
But be accompanied by the development of engineering machinery and building machinery industry; All kinds of main frames become increasingly complex in the face of operating mode; At present pivoting support tooth bilge construction form has satisfied not the needs in market day by day, especially when need growing Distance Transmission in the face of some, and during the comparatively complicated operating mode of environment; Because the existing pivoting support kind of drive is gear transmission, and gear transmission can't be satisfied host requirements.
The model utility content
The purpose of the utility model provides the wheeled pivoting support of a kind of double strand chain; Change the tooth portion pattern of ball-type slewing bearing into the sprocket tooth structure; Can increase the application of pivoting support, satisfy main frame, improve the stability of sprocket driving demands for bearing capacity.
The technological scheme of the utility model is following:
The wheeled pivoting support of double strand chain; Include the support ring of annular; The support ring of annular is set with duplex chain wheel outward; Be distributed with the relative sprocket of two rows on the duplex chain wheel outer rim, the support ring outer side wall of annular and the madial wall of duplex chain wheel are respectively equipped with two semicircle ball grooves that are complementary, and two semicircle ball grooves constitute the ball grooves that is placed with ball.
Described duplex chain wheel and support ring axially stagger, and the crack two ends are respectively equipped with seal ring.
Described seal ring one end is strip, and the other end is wedge shape.
The utility model changes the tooth portion pattern of ball-type slewing bearing into the sprocket tooth structure, and raceway still adopts conventional pivoting support raceway structural type.Sprocket-type pivoting support structure shape schematic representation.
Among the figure:
Thickness between h---gear and the mounting hole;
D---standard pitch circle;
Bf---transverse tooth thickness;
K---constant;
B---chain internal segment inner width;
The sprocket-type pivoting support has changed the conventional kind of drive of pivoting support from structure, improves the field that the pivoting support of knowing clearly uses through chaindriven mode., velocity ratio required precision comparatively abominable in operating mode is not in the very high main frame machineries such as agricultural, mining industry, metallurgy, lifting, transportation, oil, chemical industry, lumber and environmental sanitation; Long distance transportation is absolutely necessary; Some common chain sprockets can not satisfy the bearing capacity of main frame; And the chain type pivoting support is on the basis of original high bearing capacity; Fundamentally solved the demand of some main frames through chaindriven mode, and the sprocket-type pivoting support divides into wheeled pivoting support of double strand chain and the wheeled pivoting support of double strand chain on sprocket wheel, make the selection that is fit to the main frame needs according to different output torques and operating mode situation.
Relative ordinary gear transmission of chain-driven and band transmission have very big advantage, for example:
(1) chaindriven manufacturing and installation precision require lower.
(2) transmission power is big.
(3) transmission efficiency is high, can reach 0.95 ~ 0.98.
(4) can be used for the bigger situation of diaxon centre distance, and drive mechanism is simple.
(5) can be under low speed, heavy duty and high temperature condition, and stir up a cloud of dust, drench with rain, drench in the wet goods poor environment and work.
Common sprocket wheel self-bearing capacity is less; And need supporting main shaft or bearing; And the sprocket-type pivoting support has at first been optimized chaindriven main machine structure from structure, and its pivoting support self high bearing capacity has at first satisfied main frame to demands for bearing capacity, and the sprocket-type tooth bilge construction that adopts has satisfied main frame simultaneously to chaindriven requirement; Tooth portion quenches and makes sprocket wheel have stronger impact and wear resistance simultaneously, has improved the stability of sprocket driving.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Embodiment
Referring to accompanying drawing, the wheeled pivoting support of double strand chain includes annular support ring 1; The support ring 1 outer duplex chain wheel 2 that is set with of annular; Be distributed with the relative sprocket 8 of two rows on the duplex chain wheel outer rim, the support ring outer side wall of annular and the madial wall of duplex chain wheel are respectively equipped with 3, two the semicircle ball grooves of two semicircle ball grooves that are complementary and constitute the ball grooves that is placed with ball; Duplex chain wheel and support ring axially stagger; And crack 4 two ends are respectively equipped with seal ring 7, and seal ring 7 one ends 5 are strip, and the other end 6 is wedge shape.
The processing method of the utility model sprocket-type pivoting support is following:
(1) adopt numerically controlled lathe that raceway is carried out semi finishing according to calculating resulting raceway parameter;
(2) raceway quenches and adopts mid-frequency induction hardening;
(3) the pivoting support each several part is carried out fine finishing;
(4) adopt the numerical control gear milling working machine tool to carry out sprocket tooth processing;
(5) adopt numerical control quenching machine tool that tooth portion is quenched;
(6) adopt numerical control drilling machine to carry out axial mounting hole processing at inside and outside circle axial plane;
(7) use numerical control raceway special purpose grinder or numerical control raceway special purpose lathe raceway is formed processing.
Can find out that from diagram the tooth portion pattern of single-row ball type slewing bearing is designed to sprocket form, its tooth bilge construction is made in strict accordance with the 3RGB1244-85 regulation.
In conjunction with chaindriven transport characteristics, at first be to use numerically controlled lathe to carry out the semi finishing of sprocket-type pivoting support structure.Adopt arc transition at the root circle place, avoided stress to concentrate the tooth portion that causes to lose efficacy.
Use the method for Frequency Induction Heating then semi-finished raceway is carried out the surface heat processing, quenching hardness is 57 ~ 62HRC, and depth of hardening zone is greater than 3.0mm.
Then use numerical control milling machine tool for sleeping in to carry out sprocket tooth part processing, and use the numerical control hardening machine that the flank of tooth is quenched, quenching hardness is HRC50～56.
At last the raceway after the tempering is formed grinding or adopt with car for mill.And the axial circle of the wheeled pivoting support of Quality Initiative in turning course beated, tooth is jumped, axially reach radial clearance all in a reasonable range, thereby guarantee stationarity and the high efficiency of sprocket-type pivoting support in operation process.
Claims (3)
1. the wheeled pivoting support of double strand chain; Include the support ring of annular; It is characterized in that: the support ring of annular is set with duplex chain wheel outward; Be distributed with the relative sprocket of two rows on the duplex chain wheel outer rim, the support ring outer side wall of annular and the madial wall of duplex chain wheel are respectively equipped with two semicircle ball grooves that are complementary, and two semicircle ball grooves constitute the ball grooves that is placed with ball.
2. the wheeled pivoting support of double strand chain according to claim 1, it is characterized in that: described duplex chain wheel and support ring axially stagger, and the crack two ends are respectively equipped with seal ring.
3. the wheeled pivoting support of double strand chain according to claim 2 is characterized in that: described seal ring one end is strip, and the other end is wedge shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202428275U CN202158074U (en) | 2011-07-12 | 2011-07-12 | Double row chain wheel type slewing bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202428275U CN202158074U (en) | 2011-07-12 | 2011-07-12 | Double row chain wheel type slewing bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202158074U true CN202158074U (en) | 2012-03-07 |
Family
ID=45765714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202428275U Expired - Lifetime CN202158074U (en) | 2011-07-12 | 2011-07-12 | Double row chain wheel type slewing bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202158074U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132698A (en) * | 2013-02-28 | 2013-06-05 | 徐工集团工程机械股份有限公司 | Slewing mechanism and engineering machine |
| CN107720602A (en) * | 2017-08-30 | 2018-02-23 | 武汉船用机械有限责任公司 | A kind of seaborne supply jacking system |
-
2011
- 2011-07-12 CN CN2011202428275U patent/CN202158074U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103132698A (en) * | 2013-02-28 | 2013-06-05 | 徐工集团工程机械股份有限公司 | Slewing mechanism and engineering machine |
| CN107720602A (en) * | 2017-08-30 | 2018-02-23 | 武汉船用机械有限责任公司 | A kind of seaborne supply jacking system |
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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 |
Granted publication date: 20120307 |
|
| CX01 | Expiry of patent term |