CN202418426U - Continuous bearing pin shaft chain unit for elevator - Google Patents
Continuous bearing pin shaft chain unit for elevator Download PDFInfo
- Publication number
- CN202418426U CN202418426U CN2011204888413U CN201120488841U CN202418426U CN 202418426 U CN202418426 U CN 202418426U CN 2011204888413 U CN2011204888413 U CN 2011204888413U CN 201120488841 U CN201120488841 U CN 201120488841U CN 202418426 U CN202418426 U CN 202418426U
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- bearing pin
- bearing
- chain
- pin shaft
- pin
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Abstract
The utility model discloses a continuous bearing pin shaft chain unit for an elevator. The continuous bearing pin shaft chain unit for the elevator comprises two pin shafts (1); each pin shaft (1) is provided with a roller chain (2); two ends of each pin shaft (1) are riveted and connected with two corresponding riveting platforms (3); two connection plates (4) which are connected with two adjacent chain links are sleeved on each pin shaft (1) and are positioned between the riveting platforms (3) and one end of each roller chain (2); and the continuous bearing pin shaft chain unit is characterized in that one riveting platform (3) is provided with a bearing pin (6) which is connected with an elevator support plate (5). According to the continuous bearing pin shaft chain unit, the diameter of the bearing pin is increased, and the replacement cycle can be greatly prolonged; and the continuous bearing pin shaft chain unit has the advantages of reducing cost ad maintenance rate, and easiness and convenience.
Description
Technical field
The utility model relates to a kind of lift accessory, and especially a kind of lift of chain load-bearing transmission that utilizes is used chain, specifically a kind of continous way lift load-bearing bearing pin chain link.
Background technique
Support-board type chain lift is in recent years from one of efficient conveyor of external introduction, and this device structure is succinct, can transmit continuously, can automatically operate by supporting production line; Single mount is carried the common 10～500Kg of weight; Second/holder surplus beat can reach 10, even faster, and do not have direct relation with the height of floor; Compare with goods lift and reciprocating vertical conveyor, efficient can improve several times even tens times.So be particularly suitable for big box, pellet type goods of carry traffic and product, be used for food and drink, tobacco, medicine, household electrical appliances and industry such as large warehoused more.
The structure characteristic of this type lift is that goods still has the section of moving horizontally in course of conveying except the vertical-lift section is arranged; Accomplish enhanced feature by the standard roller chain; Supporting plate accomplish to carry and horizontally moving functions, and supporting plate is mounted on the prolongation bearing pin of lift chain, sees Fig. 1.
We adopt lift chain is the GB sleeved roller transmission chain, pitch=25.4mm, pin diameter=7.94mm; Each prolongs bearing pin must replace a bearing pin, and pass lift chain and be connected (seeing Fig. 2, Fig. 3) with the pin-and-hole of supporting plate, but because load-bearing is big and supporting plate pin-and-hole quick abrasion; (Fig. 3 is seen in the fault point) is in operation the fracture of discovery one place with regard to the replacing that must stop production, otherwise causes goods to topple over damage easily, need empty goods during replacing; The dismounting supporting plate; Time-consuming, slightly misplace when prolonging bearing pin replacement roller chain bearing pin and just can't install, so maintain and replace needs 4 people.Usually prolong bearing pin life-spans 3 ∽ 6 months, will change during maintenance, Utilization ratio is high more, and the replacement cycle is short more, is a principal element of the rate of fault of continous way lift.
Can find out that from Fig. 2, Fig. 3 causing prolongation bearing pin major cause of failure is limited by lift chain, pin diameter can not be greater than φ 8mm; Sectional area is little, and prolongation is continuous repeated flex under the effect of load-bearing supporting plate, and stress concentrates the generation fatigue limit to rupture easily; Though through nitriding, quenching; But working life is still shorter, causes the accident easily, so maintain and replace is frequent.If adopt the roller chain of pitch=31.75mm or 38.10mm, pin diameter also has only φ 9.52mm or φ 11.1mm, can't resolve root problem, and following sprocket wheel, transmission shaft comprise that equipment integral all will amplify, and cost, cost significantly increase.
And every minimum Breaking load of the roller chain of pitch=25.4mm is 5800kg, and 4 can reach 23200kg, substantially exceed the equipment load bearing requirements, therefore, does not adopt the roller chain of pitch=31.75mm or 38.10mm usually.
Can find out that from above failure reason analysis prolonging the main cause that the bearing pin life-span do not reach requirement is;
A, limited by lift chain, the roller chain pin diameter of pitch=25.4m can not be greater than φ 8mm;
B, sectional area are less, and prolongation repeated flex, stress are concentrated the easy fatigue fracture;
The lift chain cost increase of C, the big specification of employing is very big, can't resolve root problem;
D, maintain and replace are frequent, time-consuming.
This still there is not good solution at present.
Summary of the invention
The purpose of the utility model is to the chain of existing support-board type chain lift and the load-bearing axle damage easy to wear between the supporting plate; Cause working life short; Need often to change and to change the problem of inconvenience, design a kind of wear-resistant, load-bearing is big, the life-span is long, convenient maintenance and replacement, continous way lift load-bearing bearing pin chain link that cost is low.
The technological scheme of the utility model is:
A kind of continous way lift load-bearing bearing pin chain link; It comprises two bearing pins 1; The two ends that 2, two bearing pins 1 of roller chain all are installed on every bearing pin 1 link to each other with corresponding two riveted joint platforms, 3 riveted joints, are set with two connecting plates 4 that connect adjacent link on the every bearing pin 1; Described connecting plate 4 is characterized in that on the described riveted joint platform 3 bearing pin 6 that links to each other with lift supporting plate 5 being installed between an end of riveted joint platform 3 and roller chain 2.
The diameter of described bearing pin 6 is greater than the diameter of bearing pin 1.
Described bearing pin 6 is connected through being threaded, being welded to connect or riveting with riveted joint platform 3.
The end that described bearing pin 6 links to each other with supporting plate 5 is provided with worm structure 7.
Described worm structure 7 is provided with radial opening pin-and-hole 8.
Two joints of described chain link respectively are connected with dismountable hunting link.
The beneficial effect of the utility model:
1, the diameter of the bearing pin of the utility model increases: because bearing pin is installed on the riveted joint platform; So the diameter of load-bearing axle no longer receives the restriction of roller chain; Its bearing structure, mode and former bearing pin are different fully, and the situation of wear and rupture no longer takes place, and the replacement cycle prolongs greatly.
2, stress disperses: the utility model is rational in infrastructure, load-bearing pressure disperses.Sectional area is original several times, and structure is equal to former roller chain, the repeated flex that does not have the bearing pin prolongation of existing structure to bring, and the situation of fatigue fracture exists hardly.Stress concentrates the possibility that produces fatigue limit and rupture very little.
3, cost reduces: thereby can reducing the machining accuracy of assembly, the utility model reduces cost, and the corresponding raising of the up-to-standard rate of bearing pin, spare part quantity also significantly reduces, and cost must reduce.
4, maintenance rate descends: because model utility is rational in infrastructure, significantly improve the maintain and replace expense and significantly reduce working life, and rate of fault reduces, and loss also reduces relatively.
5, maintenance is easy: the utility model is the combination of one section chain link, and the standard connecting link is equipped with at two ends, need only dismantle two ends chain link cotter pin during replacing and change new chain link combination and get final product, and 1-2 name service worker just can easily be accomplished.
6
,The load-bearing bearing pin chain link of the utility model, the improvement of bearing structure have solved a puzzlement difficult problem for many years with innovation, and it is all helpful working life to reducing cost, to produce, improve product in batches, various similar means are all had use for reference and promotional value.
Description of drawings
Fig. 1 is the continous way lift loading up-down schematic representation of the utility model.
Fig. 2 is that existing prolonged type bearing pin is connected schematic representation with supporting plate.
Fig. 3 is the fault point schematic representation of existing prolonged type bearing pin.
Fig. 4 is the continous way lift load-bearing bearing pin link configuration schematic representation of the utility model.
Fig. 5 is the continous way lift bearing pin chain link force analysis schematic representation of the utility model.
Fig. 6 is the continous way lift load-bearing bearing pin chain link maintain and replace process schematic representation of the utility model; Among the figure: 11 is goods, and 12 is pallet, and 18 is lift chain T=25.4mm, and 19 is Φ 7.94 bearing pins.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
As shown in Figure 4.
A kind of continous way lift load-bearing bearing pin chain link, it comprises two bearing pins 1, on the every bearing pin 1 roller chain 2 is installed all; The two ends of two bearing pins 1 link to each other with corresponding two riveted joint platforms, 3 riveted joints, are set with two connecting plates 4 that connect adjacent link on the every bearing pin 1, and described connecting plate 4 is between an end of riveted joint platform 3 and roller chain 2; On the described riveted joint platform 3 bearing pin 6 that links to each other with lift supporting plate 5 is installed, bearing pin 6 can pass through methods such as screw thread, welding or riveted joint and link to each other with riveted joint platform 3, and is as shown in Figure 4; In order to improve bearing power and abrasive resistance; Should make the diameter of the diameter of bearing pin 6 greater than bearing pin 1, the diameter of the bearing pin of present embodiment can be 14 millimeters, for the ease of firmly being connected with supporting plate 5; On bearing pin 6 and a end that supporting plate 5 links to each other, be provided with worm structure 7; And on worm structure 7, be provided with radial opening pin-and-hole 8, the external diameter of the screw thread of the worm structure 7 of present embodiment is M12, and the diameter of cotter-pin hold 8 is 3.5 millimeters.Worm structure 7 links to each other with supporting plate 5 through grooved nut 9, and adjusting pad 10 also is being installed between supporting plate 5 and the riveting trade and investment promotion platform 3 or between supporting plate 5 and the grooved nut 9.
As shown in Figure 5; The essence of the utility model is to adopt two bearing pins to replace single bearing pin: can find out that from accompanying drawing 5 chain link of new bearing pin structure adopts dual link pin and external prolongation bearing pin and the roller chain structure to the folder riveted joint, changes former bearing pin one; The prolongation diameter can not be greater than the deficiency of roller chain 2 internal diameters (φ 8mm); Because the change of structure, the diameter of the bearing pin of prolongation no longer receives the restriction of roller chain, and diameter can be increased to φ 14mm by φ 8mm; Make bearing structure, mode and former bearing pin different fully, the replacement cycle can prolong greatly.
Can find out from accompanying drawing 5; The weight bearing type bearing pin of the utility model adopts dual link pin and external prolongation bearing pin, and stress concentration point is dispersed into 3 by one, and dual link pin and prolongation are riveted at platform; Sectional area is original 2 times; Structure is equal to former roller chain, the repeated flex that does not have former bearing pin prolongation to bring, the situation of fatigue fracture.The diameter of external prolongation bearing pin 6 is increased to φ 14mm by original φ 8mm, and sectional area is original 3 times, and is not flexible, and stress concentrates the possibility that produces fatigue limit and rupture also just very little.
Thereby the utility model can reduce the machining accuracy of assembly to reduce cost; External prolongation bearing pin enlarged diameter, machining accuracy, surface roughness require also slightly to reduce the corresponding raising of the up-to-standard rate of load-bearing bearing pin; Original equipment will be changed 3～4 batches of spare parts in 1 year; And the equipment of employing the utility model, spare part quantity also significantly reduces, and cost has reduced naturally.
4, to change the present situation of 3～4 batches of bearing pin spare parts in 1 year by original equipment; Estimate to adopt the bearing pin of model utility, the maintain and replace cycle, significantly improved working life more than at least one year; Maintenance rate can descend more than 70%; The maintain and replace expense significantly reduces, and goods is toppled over rate of fault and reduced, and loss also significantly reduces.
Because φ 8mm bearing pin is stationary fit, slightly deviation was just installed very difficulty when 5, former prolongation bearing pin removed and installed, and maintain and replace will be equipped with special tool; If because of the bearing pin fracture causes goods to topple over, push, will dismantle equipment unit, take out goods; Because of every supporting plate goods 300～500kg that weighs; So maintain and replace just bothers very much, and is time-consuming, generally all wants 4～5 miantainers to accomplish.The utility model is one section chain link combination; The standard connecting link is equipped with at two ends; Need only dismantle two ends chain link cotter pin during replacing and change the combination of new chain link and get final product, maintenance facility discovery noticeable wear is changed just passable again, does not almost cause goods to topple over, push; Possibility, so 1-2 name service worker just can easily be accomplished. see Fig. 6.
Through evidence, the load-bearing bearing pin chain link of the utility model is applied on the lift, transport 7.8 meters of height; Goods length * wide * height is 1.5m * 1.5m * 2.1m; Every holder goods weight 300-500Kg, 180 holder/h, two classes of runnings; Trying 3 wheat harvesting periods out does not have bending deflection, indications of fracture, and the design that proves load-bearing bearing pin chain link is rational.
Through the bearing capacity to former supporting plate chain, wear surface, stress point; Reliability, in working life, the maintenance difficulty or ease are taken all factors into consideration analysis; The improvement and the innovation of corresponding force, force structure; Change pressure-bearing mode and structure, the weight bearing type continous way lift supporting plate chain of designing has reached following requirement fully:
A, not limited by lift chain, the roller chain pin diameter of pitch=25.4m can reach φ 14mm at least;
B, sectional area several times increase, and stress disperses, and prolongation repeated flex, stress are concentrated possibly almost not having of fatigue fracture;
C, need not adopt the lift chain of big specification, cost reduces, and can solve root problem;
D, maintain and replace are simple, no longer time-consuming.
The utility model does not relate to all identical with the existing technology existing technology that maybe can adopt of part to be realized.
Claims (6)
1. continous way lift load-bearing bearing pin chain link; It comprises two bearing pins (1); Roller chain (2) all is installed on the every bearing pin (1); The two ends of two bearing pins (1) link to each other with corresponding two riveted joint platforms (3) riveted joint; Be set with two connecting plates (4) that connect adjacent link on the every bearing pin (1), described connecting plate (4) is positioned between the end of riveted joint platform (3) and roller chain (2), it is characterized in that being equipped with on the described riveted joint platform (3) bearing pin (6) that links to each other with lift supporting plate (5).
2. continous way lift load-bearing bearing pin chain link according to claim 1 is characterized in that the diameter of the diameter of described bearing pin (6) greater than bearing pin (1).
3. continous way lift load-bearing bearing pin chain link according to claim 1 is characterized in that described bearing pin (6) is connected through being threaded, being welded to connect or riveting with riveted joint platform (3).
4. continous way lift load-bearing bearing pin chain link according to claim 1 is characterized in that the end that described bearing pin (6) links to each other with supporting plate (5) is provided with worm structure (7).
5. continous way lift load-bearing bearing pin chain link according to claim 4 is characterized in that described worm structure (7) is provided with radial opening pin-and-hole (8).
6. continous way lift load-bearing bearing pin chain link according to claim 1 is characterized in that two joints of described chain link respectively are connected with dismountable hunting link.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204888413U CN202418426U (en) | 2011-11-30 | 2011-11-30 | Continuous bearing pin shaft chain unit for elevator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204888413U CN202418426U (en) | 2011-11-30 | 2011-11-30 | Continuous bearing pin shaft chain unit for elevator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202418426U true CN202418426U (en) | 2012-09-05 |
Family
ID=46743196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204888413U Expired - Fee Related CN202418426U (en) | 2011-11-30 | 2011-11-30 | Continuous bearing pin shaft chain unit for elevator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202418426U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518749A (en) * | 2011-11-30 | 2012-06-27 | 熊猫电子集团有限公司 | Bearing pin shaft chain link for continuous lifting machine |
-
2011
- 2011-11-30 CN CN2011204888413U patent/CN202418426U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102518749A (en) * | 2011-11-30 | 2012-06-27 | 熊猫电子集团有限公司 | Bearing pin shaft chain link for continuous lifting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20201130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |