CN201598663U - Movable pulley mechanism on diaphragm grab bucket - Google Patents
Movable pulley mechanism on diaphragm grab bucket Download PDFInfo
- Publication number
- CN201598663U CN201598663U CN2010201223964U CN201020122396U CN201598663U CN 201598663 U CN201598663 U CN 201598663U CN 2010201223964 U CN2010201223964 U CN 2010201223964U CN 201020122396 U CN201020122396 U CN 201020122396U CN 201598663 U CN201598663 U CN 201598663U
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- Prior art keywords
- axle sleeve
- movable pulley
- bearing
- groove
- seal
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Abstract
The utility model discloses a movable pulley mechanism on a diaphragm grab bucket, and relates to the field of diaphragm grab buckets in pile driving machinery. The mechanism comprises a main frame used for mounting a movable pulley component, a pulley disc, bearing end covers, shaft sleeves, a spacing shaft sleeve and a pin shaft, wherein the bearing end covers are mounted on the two side surfaces of a hub of the pulley disc; the shaft sleeves pass through the central holes of the two bearing end covers; the spacing shaft sleeve capable of limiting the rotation of the shaft sleeves is welded on the main frame and aligned with the axis of the shaft sleeve; and the pin shaft is matched with the shaft sleeves and used for mounting the movable pulley on the main frame. The utility model has the benefits that the structural combination combines the radial static seal, the axial static seal and a rotational dynamic seal, and meets the needs of the movable pulley assembly on the diaphragm grab bucket to run in a construction groove lower part.
Description
Technical field
The utility model relates to piling machinery continuous wall grab field, is specifically related to a kind of continuous wall grab movable pulley mechanism.
Background technology
The characteristics of continuous wall grab construction are the retaining wall effects by means of mud, dig out narrow and dark groove underground, and groove is the darkest to reach 140 meters, and width is usually between 0.6 to 1.2 meter.Grab bucket is risen and decline is to drive the movable pulley that is contained in above the grab bucket by wire rope to realize.And the quality of movable pulley operation directly influences the speed of construction speed, and it plays the effect that concerns to the examination of complete machine performance.In work progress, along with gash depth increases, channel bottom pressure strengthens gradually, and the environment of movable pulley operation worse and worse.The pressure maximum of water, mud, husky acting in conjunction lower groove bottom can reach 14MPa, and the linear velocity that requires movable pulley simultaneously is about 3m/s, and this just movable pulley is rotated and sealing performance has proposed very high requirement.The reasonability that structure is formed plays critical effect to improving overall sealing performance, and structure was rationally distributed when this just required to design, and the sealing part place will handle proper, and these 2 is the basic assurance of movable pulley operational excellence.Like product mainly contains two kinds of ways at present: itself does not assemble rolling bearing a movable pulley, the mode that adopts axle and bearing shell to cooperate, its shortcoming is that wearing and tearing and loss are big, life cycle is short: two movable pulley assembling rolling bearing itself, structure and movable sealing are handled bad, pulley only is applicable under the not dark situation of slow-speed of revolution groove and moves that application life is not long yet.
Summary of the invention
In order to solve above-mentioned the deficiencies in the prior art, the utility model provides a kind of continuous wall grab movable pulley mechanism, has solved movable pulley well and has in use sealed problem poor, that pressurized is little, rotating speed is low, the cycle is short, uses safe and reliable.
The utility model is realized with following technical scheme: a kind of continuous wall grab movable pulley mechanism comprises the main frame that is used to install the movable pulley assembly; Pulley disc and be contained in the bearing (ball) cover of pulley disc wheel hub two sides; Axle sleeve by the two bearings end cap central bore; Be welded on the spacing axle sleeve that can limit the axle sleeve rotation on the main frame with the axle sleeve axial alignment; Be installed on the main frame movable pulley assembly and the bearing pin that cooperates with axle sleeve; The cylinder roller bearing that cooperates with pulley disc endoporus and sleeve outer circle respectively; Be contained in the axle sleeve endoporus sealed groove and cooperate hydraulic pressure with O type rubber seal A with the bearing pin cylindrical; Be contained in the bearing (ball) cover side seal groove hydraulic pressure that matches with the pulley disc side with O type rubber seal B; Be contained in the PTFE rotating seal that cooperates with sleeve outer circle in the bearing (ball) cover centre bore inner seal groove and be contained in and be the oil nozzle of movable pulley assembly oiling on pivot pin one end face.
The beneficial effects of the utility model are: radially static seal, axial static seal and rotary dynamic seal combine this kind textural association well, comprise specifically following some: 1, hydraulic pressure is contained in the axle sleeve endoporus sealed groove with O type rubber seal A and cooperates with pivot pin, sealing herein belongs to radial seal, because of there not being relative rotation between axle sleeve and the pivot pin, so it belongs to a kind of of static seal; 2, hydraulic pressure is contained in the bearing (ball) cover side seal groove with O type rubber seal B and matches with pulley disc wheel hub side, sealing herein belongs to axial seal, because of bearing (ball) cover and pulley disc side do not have relative motion, so it also belongs to a kind of of static seal, these two places maximum characteristics of sealing are good airproof performances, compact conformation, easy accessibility, life cycle is long, can use in the temperature range of-100C °～260C °, and sealing load can reach 100MPa; 3, the PTFE rotating seal is contained in the bearing (ball) cover centre bore inner seal groove and cooperates with sleeve outer circle, sealing herein belongs to rotatory sealing, because of relative rotation is arranged between bearing (ball) cover and the axle sleeve, so it belongs to a kind of of movable sealing, this seal can use in the temperature range of-30C °～100C °, sealing load can reach 30MPa, and the linear velocity of movable pulley can reach 30m/s; 4, because above 3 measure puts in place, and under situation about not dismantling, the lubrication oil of beating by oil nozzle is not subjected to the pollution of mud, can limit groove lower curtate mud effectively and sand enters in the bearing chamber, improve the application life of bearing, extend working time.Whole sealing height, the speed of service is fast, satisfies the requirement of operation condition far away.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model structural representation;
Fig. 2 is the partial enlarged drawing of sequence number 6,7 among Fig. 1;
Fig. 3 is the partial enlarged drawing of sequence number 8 among Fig. 1.
Among the figure: 1, pulley disc, 2, bearing (ball) cover, 3, axle sleeve, 4, bolt, 5, bearing pin, 6, hydraulic pressure is with O shape rubber ring A, 7, the PTFE rotating seal, 8, hydraulic pressure O shape rubber ring B, 9, cylinder roller bearing, 10, hexagon socket cap head screw, 11, main frame, 12, oil nozzle, 13, spacing axle sleeve.
The specific embodiment
As Fig. 1, Fig. 2 and shown in Figure 3, there is a main frame 11 in pulley continuous wall grab movable pulley mechanism, welded limiting axle sleeve 13 on main frame, and spacing axle sleeve 13 1 end faces have boss, because of spacing axle sleeve 13 has boss, will be symmetrically welded on the main frame 11 during welding.There are sealed groove and annular oil groove in axle sleeve 3 endoporus two ends, and there is oil outlet at the place in the middle of the oil groove, and sealed groove is in the outside, and annular oil groove is in the inboard, and axle sleeve 3 both ends of the surface have a groove, and there is the shaft shoulder axle sleeve 3 cylindrical centers.The boss of spacing axle sleeve 13 and the groove fit of axle sleeve make axle sleeve not have rotation with respect to main frame, do not have between bearing pin and the axle sleeve to relatively rotate.In the sealed groove at axle sleeve 3 endoporus two ends, be respectively charged into hydraulic pressure O type rubber seal A 6; The hydraulic pressure of in bearing (ball) cover 2 side seal grooves, packing into O type rubber seal B 8; The PTFE rotating seal 7 of in bearing (ball) cover 2 centre bore inner seal grooves, packing into; Bearing (ball) cover 2 rotates with pulley disc 1, and hydraulic pressure is contained in the bearing (ball) cover 2 side seal grooves with O type rubber seal B8 and pulley disc 1 wheel hub is installed between the side, forms axial static seal.Hydraulic pressure is contained in the axle sleeve 3 endoporus sealed grooves with O type rubber seal A and between bearing pin 5 cylindricals, forms radially static seal.The PTFE rotating seal is contained in bearing (ball) cover (2) the centre bore inner seal groove and between axle sleeve (3) cylindrical, forms rotary dynamic seal.The both sides of the axle sleeve 3 cylindrical shaft shoulders are installed two cylinder roller bearings 9 respectively; Cylindrical roller bearing 9 is in axle sleeve 3 is made the wheel hub of the as a whole pulley disc 1 of packing into, with some hexagon socket cap head screws 10 pulley disc wheel hub both sides bearing (ball) cover 2 is packed into, attention is before packing bearing (ball) cover 2 into, and cylinder roller bearing 9 will add suitable lubricating grease; Pulley main body has just installed like this, with pivot pin 5 pulley main body is packed in the main frame 11, and the groove at axle sleeve 3 two ends aligns with the boss of the spacing axle sleeve 13 in both sides when packing into; With bolt 4 pivot pin 5 is fixed on the main frame 11, two oil-outs are arranged on the pivot pin 5, the on-fixed end of bearing pin 5 has a fuel filler neck 12, and the other end of bearing pin 5 is fixed on the main frame 11.At last oil nozzle 12 is contained on the pivot pin.After this structure has been assembled, just form the radial seal between axle sleeve 3 and the pivot pin 5; Bearing (ball) cover 2 and the sealing of pulley disc 1 side axial, the rotation dynamic radial seal between bearing (ball) cover 2 and the axle sleeve 3.Because mechanism is ingenious, seal approach is proper, uses the requirement that can satisfy present situation far away.
Lubrication oil is squeezed into by fuel filler neck 12, enters annular oil groove through oil channel, and the oil-out through annular oil groove enters bearing chamber again, gives cylinder roller bearing 9 lubricated.
Claims (9)
1. a continuous wall grab movable pulley mechanism is characterized in that, comprises the main frame (11) that is used to install the movable pulley assembly, pulley disc (1) and be contained in the bearing (ball) cover (2) of pulley disc (1) wheel hub two sides; Axle sleeve (3) by two bearings end cap (2) centre bore; Be welded on the spacing axle sleeve (13) that limits axle sleeve (3) rotation on the main frame with axle sleeve (3) axial alignment; The movable pulley assembly is installed in the bearing pin (5) that main frame (11) is gone up and cooperated with axle sleeve (3); The cylinder roller bearing (9) that cooperates with pulley disc (1) endoporus and axle sleeve (3) cylindrical respectively; Be contained in the hydraulic pressure O type rubber seal A (6) that cooperates with bearing pin (5) cylindrical in axle sleeve (3) the endoporus sealed groove; Be contained in the hydraulic pressure O type rubber seal B (8) that matches with pulley disc (1) wheel hub side in bearing (ball) cover (2) the side seal groove; Be contained in the PTFE rotating seal (7) that cooperates with axle sleeve (3) cylindrical in bearing (ball) cover (2) the centre bore inner seal groove and be contained on pivot pin (5) one end faces and be the oil nozzle (12) of movable pulley assembly oiling.
2. continuous wall grab movable pulley according to claim 1 mechanism, it is characterized in that: spacing axle sleeve (13) one end faces have a boss, are symmetrically welded on the main frame.
3. continuous wall grab movable pulley according to claim 1 mechanism, it is characterized in that: there are sealed groove and annular oil groove in axle sleeve (3) endoporus two ends, there is oil outlet at the place in the middle of the oil groove, sealed groove is in the outside, annular oil groove is in the inboard, axle sleeve (3) both ends of the surface have a groove, and there is the shaft shoulder axle sleeve (3) cylindrical center.
4. continuous wall grab movable pulley according to claim 1 mechanism, it is characterized in that: two oil-outs are arranged on the pivot pin (5), and the on-fixed end of bearing pin (5) has a fuel filler neck (12), and the other end is fixed on the main frame (11).
5. continuous wall grab movable pulley according to claim 1 mechanism, it is characterized in that: bearing (ball) cover (2) rotates with pulley disc (1), hydraulic pressure is contained in bearing (ball) cover (2) the side seal groove with O type rubber seal B (8) and pulley disc (1) wheel hub is installed between the side, forms axial static seal.
6. according to claim 1,3 and 4 described continuous wall grab movable pulley mechanisms, it is characterized in that: the groove fit of the boss of spacing axle sleeve (13) and axle sleeve (3), axle sleeve (3) is not relatively rotated relative to rotating with main frame (11) nothing, not having between bearing pin (5) and the axle sleeve (3).
7. continuous wall grab movable pulley according to claim 1 mechanism, it is characterized in that: hydraulic pressure is contained in axle sleeve (3) the endoporus sealed groove with O type rubber seal A (6) and between bearing pin (5) cylindrical, forms radially static seal.
8. continuous wall grab movable pulley according to claim 1 mechanism is characterized in that: the PTFE rotating seal is contained in bearing (ball) cover (2) the centre bore inner seal groove and between axle sleeve (3) cylindrical, forms rotary dynamic seal.
9. continuous wall grab movable pulley according to claim 4 mechanism, it is characterized in that: lubrication oil is to be squeezed into by fuel filler neck (12), enters annular oil groove through oil channel, the oil-out through annular oil groove enters bearing chamber again, gives cylinder roller bearing (9) lubricated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201223964U CN201598663U (en) | 2010-02-26 | 2010-02-26 | Movable pulley mechanism on diaphragm grab bucket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201223964U CN201598663U (en) | 2010-02-26 | 2010-02-26 | Movable pulley mechanism on diaphragm grab bucket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201598663U true CN201598663U (en) | 2010-10-06 |
Family
ID=42809713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201223964U Expired - Fee Related CN201598663U (en) | 2010-02-26 | 2010-02-26 | Movable pulley mechanism on diaphragm grab bucket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201598663U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897669A (en) * | 2011-07-28 | 2013-01-30 | 吴江市宏亿纺织有限公司 | Choke installation part |
| CN103016537A (en) * | 2012-11-23 | 2013-04-03 | 江苏利德尔塑化科技股份有限公司 | Oil-circulating type MC (Monomer Casting) nylon pulley |
| CN106143661A (en) * | 2016-08-01 | 2016-11-23 | 昆山土山建设部件有限公司 | Directive wheel for crawler type chassis |
-
2010
- 2010-02-26 CN CN2010201223964U patent/CN201598663U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102897669A (en) * | 2011-07-28 | 2013-01-30 | 吴江市宏亿纺织有限公司 | Choke installation part |
| CN103016537A (en) * | 2012-11-23 | 2013-04-03 | 江苏利德尔塑化科技股份有限公司 | Oil-circulating type MC (Monomer Casting) nylon pulley |
| CN106143661A (en) * | 2016-08-01 | 2016-11-23 | 昆山土山建设部件有限公司 | Directive wheel for crawler type chassis |
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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: 20101006 Termination date: 20110226 |