CN202280761U - Friction-type overrunning clutch - Google Patents
Friction-type overrunning clutch Download PDFInfo
- Publication number
- CN202280761U CN202280761U CN2011203911501U CN201120391150U CN202280761U CN 202280761 U CN202280761 U CN 202280761U CN 2011203911501 U CN2011203911501 U CN 2011203911501U CN 201120391150 U CN201120391150 U CN 201120391150U CN 202280761 U CN202280761 U CN 202280761U
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- brake pad
- clutch
- friction
- pallet
- cylinder block
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Abstract
The utility model relates to a friction-type overrunning clutch which is designed aiming at the technical problems of relative poor stability and security of braking maneuver of similar products. A driving shaft of the clutch is fixedly connected with a splined hole of a friction block tray through a screw; the friction block tray, the friction block and a piston are arranged in an air cylinder body; the overrunning clutch consists of a clutch internal sleeve, a wedge block and a clutch outer sleeve. The friction-type overrunning clutch is characterized in that the air cylinder body is provided with a brake bar; the brake bar sequentially penetrates through the air cylinder body and the piston and props against the friction block; a spring is arranged between the brake bar and the air cylinder body; a bottom through hole of the air cylinder body is provided with a rotary joint; and the rotary joint is connected with an air pipe; a tray plate of the friction block tray is provided with waist-shaped holes; one side surface of the friction block penetrates through the waist-shaped holes of the friction block tray; and the waist-shaped holes uniformly and circularly distributed on the tray plate of the friction block tray. The friction-type overrunning clutch is suitable for electromechanical and pneumatic integrated equipment which requires a friction-type clutch and an overrunning clutch at the same time as well as the structural development of the similar clutch products.
Description
Technical field
The utility model relates to clutch, is a kind of friction overdrive clutch.
Background technique
Clutch is a kind of transmitting assemblies that makes master and slave moving axis combine or break away from, and is different with working principle according to its structure, generally is divided into magnetic clutch, magnetic powder clutch, free wheel device, friction clutcch etc.Wherein, friction clutcch is that a kind of joint element of driving and driven part that utilizes adopts the clutch that rubs; It mainly is made up of active part, secondary part, hold-down mechanism and operating mechanism four parts; Driving and driven part and hold-down mechanism are to guarantee that clutch is in the basic structure of jointing state and ability transferring power, and the operating mechanism of clutch mainly is the device that makes clutch separation.A kind of conversion that utilizes the velocity variations or the sense of rotation of driving and driven part of free wheel device has the clutch of clutch function voluntarily; It is mainly used between prime mover and the working machine or transmission of power and separation function between machine intimate driving shaft and the driven shaft.
But; Development along with the electromechanical device integration product; Pure friction clutcch or free wheel device can not be satisfied with the application of some product specifications; It requires driving and driven part not only to have clutch function voluntarily, requires simultaneously driving and driven part can realize synchronous stall function being separated between reversal stage again, and separation rapidly after stall; Then realize the conversion of the velocity variations or the sense of rotation of driving and driven part, this has just produced a kind of novel friction type and the clutch of override type combination.Like the notice of authorization CN1351232A that discloses in the Chinese patent document; Open day on May 29th, 2002; Denomination of invention " friction block type overrun clutch ", this clutch comprise that one has the friction solid of rotation of circular groove, and one is coaxial and offer bevelled engagement solid of rotation with the friction solid of rotation; One group places the brake pad in the circular groove, and one places the folding wedge piece that also contacts with them through the inclined-plane between two brake pads and the engagement solid of rotation; Wherein, each brake pad all have one with the rubbing surface and the inclined-plane that contacts with adjacent brake pad of circular groove contacts side surfaces.But above-mentioned patent and like product are annotated for the structure of friction clutcch and mainly are to realize that through the web opening slot of brake pad pallet and the locking mode of brake pad the stability and the Security of its braking maneuver are relatively poor; Simultaneously, existing this type of clutch mechanism braking product is more, and air pressure combines the braking of solenoid valve less.
Summary of the invention
For overcoming the deficiency of above-mentioned existence; The utility model is intended to provide to related domain a kind of friction overdrive clutch of air-pressure brake; Make its relatively poor technical problem of stability, Security that solves existing like product braking maneuver, its objective is and realize through following technological scheme.
A kind of friction overdrive clutch, this clutch comprises has driving shaft, clutch inner sleeve, synchronous pulley, voussoir, clutch outer, vee-pulley, brake pad pallet, brake pad, piston, cylinder block, spring, swivel joint, brake rod; Said driving shaft is fixedly connected with the splined hole of brake pad pallet through screw; Brake pad pallet, brake pad, piston are arranged in the cylinder block; Be provided with voussoir and bearing between clutch inner sleeve and the clutch outer, driving shaft is inserted in clutch inner sleeve, and the external diameter of clutch outer is provided with synchronous pulley and vee-pulley; Clutch outer is fixedly connected with vee-pulley, synchronous pulley through screw, and vee-pulley is fixedly connected with cylinder block through screw; Above-mentioned clutch inner sleeve, voussoir, clutch outer are formed free wheel device.Its structural design main points are that said cylinder block is provided with brake rod, and brake rod passes cylinder block, piston and brake pad successively and offsets, and is provided with spring between brake rod and the cylinder block, and the bottom through-hole of cylinder block is provided with swivel joint, and swivel joint is connected with tracheae; Swivel joint has spinfunction, and tracheae does not rotate during the cylinder block rotation; And the pressurized gas break-make through the electromagnetic valve tracheae, thereby the joint of realizing this clutch with separate.The disc of said brake pad pallet is provided with through hole, and the through hole of brake pad pallet is passed in a side of brake pad.Above-mentioned brake pad pallet, brake pad, piston, cylinder block, spring, swivel joint are formed friction clutcch; Thereby on the free wheel device architecture basics, be implemented in free wheel device and be separated to driving and driven part stall synchronously between reversal stage, make driving and driven part be in jointing state and ability transferring power, and after stall, separate rapidly.
The another side of said brake pad is provided with convex shoulder.When convex shoulder makes brake pad cooperate with the braking of brake pad pallet, be stopped at the through hole of brake pad pallet.Simultaneously, it adopts the copper-base powder metallurgy manufacturing, guarantees the uniformity of size, so that transferring power is more effectively reliable during frictional engagement.
The through hole of said brake pad pallet is a waist shaped hole, and the shape of through holes of the shape of brake pad and brake pad pallet is adaptive.The through hole and the brake pad that are waist shape make its brake area bigger, and brake pad is free movable, and braking effect is better.
The rounded disc that is uniformly distributed in the brake pad pallet of the waist shaped hole of said brake pad pallet.Equally distributed waist shaped hole further improves the braking point between brake pad pallet and the brake pad, and further improves the effect that its multiple spot is braked simultaneously.
The waist shaped hole of said brake pad pallet is a spline type, and the brake pad pallet waist shaped hole of the shape of brake pad and spline type is adaptive.The spline type waist shaped hole of the brake pad of spline type and brake pad pallet cooperates braking, further improves its braking effect; Simultaneously, this more compact structure, transmission of power are more greatly more balanced.
The utility model has been inherited the clutch function voluntarily of free wheel device according to the brand new technical principle design, can realize that again driving and driven part is in the function that is separated to stall synchronously between reversal stage; And after stall, separate rapidly, change the sense of rotation of driving and driven part then; Be the ground-breaking innovation of a kind of practicality, in the electromechanical device integration apparatus, be worthy of popularization.It has reasonable in design, and is simple in structure, and low cost of manufacture, action are safe and reliable, and diverse in function does not have plurality of advantages such as discrete and asymmetric revolving member, has both the function that free wheel device has, and has the function of friction clutch again; Simultaneously, owing to its direction, clutch all can be controlled automatically, obtain the multiple beneficial operating mode easily; It is applicable to the electromechanical device integration apparatus that needs friction clutcch and free wheel device to require simultaneously, and the architecture advances of similar clutch product.
Description of drawings
Fig. 1 is the sectional structure schematic representation of the utility model.
Fig. 2 is the brake pad tray embodiments structural representation of the utility model.
Fig. 3 is the brake pad example structure schematic representation of the utility model.
Fig. 4 is the user mode part sectional structure schematic representation of the utility model, and arrow is the pressurized gas direction among the figure.
Above figure number and title: 1, driving shaft, 2, clutch inner sleeve, 3, synchronous pulley, 4, voussoir, 5, clutch outer; 6, vee-pulley, 7, the brake pad pallet, 701, splined hole, 702, waist shaped hole, 8, brake pad; 801, convex shoulder, 9, piston, 10, cylinder block, 11, spring, 12, swivel joint; 13, casing, 14, bevel gear, 15, tracheae, 16, brake rod.
Embodiment
Combine accompanying drawing at present, the structure and the use of the utility model further described.Like Fig. 1～shown in Figure 3, be waist shaped hole 702 with the through hole of brake pad pallet 7, brake pad 8 shapes and waist shaped hole are adapted for example, the rounded disc that is uniformly distributed in the brake pad pallet of waist shaped hole, an end of brake pad is provided with convex shoulder 801.The piston 9 of this clutch is inserted in the cylinder block 10, and the external diameter of piston is provided with seal ring; One end of driving shaft 1 is fixedly connected with the splined hole 701 of brake pad pallet through screw, and the brake pad pallet is positioned on the piston, and the waist shaped hole of brake pad pallet is put into corresponding brake pad, and brake pad is arranged at the aperture of waist shaped hole through convex shoulder.Then; The external diameter of clutch inner sleeve 2 is inserted in bearing, voussoir 4, bearing successively; The external diameter of above-mentioned bearing, voussoir, bearing is inserted in clutch outer 5 again; The external diameter of clutch outer is inserted in vee-pulley 6 and synchronous pulley 3 successively, and clutch outer is fixedly connected with vee-pulley, synchronous pulley through screw, and pressing plate is connected with clutch inner sleeve through screw; The above-mentioned clutch inner sleeve that assembles parts is inserted in driving shaft, and vee-pulley is fixedly connected with cylinder block through screw.At last, cylinder block is provided with brake rod 16, and brake rod is inserted in spring 11, and the brake pad that passes cylinder block, piston and brake pad pallet successively offsets, and the bottom through-hole of cylinder block is provided with swivel joint 12.
Above-mentioned driving shaft is initiatively partly; Drive the rotation of driven part clutch outer or separate through clutch inner sleeve and voussoir; Clutch outer is equipped with synchronous pulley and vee-pulley, and synchronous pulley is exported as power, the power input when vee-pulley reverses as clutch separation; Friction disk 7 is installed on the driving shaft through bolt, and brake pad is placed on the brake pad pallet.When swivel joint place input pressurized air; Promoting piston moves on cylinder block; Make brake pad press clutch outer; Initiatively partly driving shaft and driven part clutch outer are in jointing state, and when the swivel joint place cut off pressurized air, brake pad separated with clutch outer under the effect of spring.Promptly the synchronous pulley of this clutch is connected with synchronous pulley, and vee-pulley is connected with the counter-rotating wheel, above-mentioned control inversion wheel, the synchronous pulley that is used to export, and realize that driving and driven part is being separated to stall synchronously between reversal stage.
User mode embodiment as shown in Figure 4, the other end of the driving shaft of this clutch is inserted in casing 13, and this end is fixed in casing through bevel gear 14, and swivel joint is connected with tracheae 15.Promptly this clutch is installed on the bearing spider through driving shaft; Fit in each other with bevel gear, casing; When becoming other form by bevel gear, main transmission just transferring into driving shaft; When driving the rotation of driven part clutch outer through clutch inner sleeve and voussoir, brake pad is in separated state, power then by synchronous pulley through band output synchronously; When differential bevel wheel became other form stall, the separation function voluntarily through voussoir made clutch inner sleeve separate with clutch outer.At this moment, because the existence of inertia, mechanism that the reason synchronous pulley is exported through band synchronously and main transmission section bevel gear are with asynchronous, for overcoming this defective; Simultaneously, pressurized air is inputed in the cylinder block by tracheae, swivel joint under the control of solenoid valve; Promote piston action; Brake pad is engaged with clutch outer, thereby drive driving shaft, bevel gear, realize the synchronous stall of driving and driven part through the brake pad pallet; When secondary part needs antiport; After treating the synchronous stall of driving and driven part, pressurized air is cut off under the control of solenoid valve, and spring promotes piston action; After making brake pad and clutch outer being separated; Another power source passes through band output synchronously by synchronous pulley again through vee belt, vee-pulley counter-rotating input, realizes the antiport of secondary part.
In sum, the utility model is applicable to the electromechanical device integration apparatus, has the following advantages: 1, inherited the clutch function voluntarily of free wheel device, increased driving and driven part in the function that is separated to stall synchronously between reversal stage; 2, having increased driving and driven part just changes-and the multiple variation of stall-counter-rotating cooperates, and makes practical application have more function to select; 3, counter-rotating control wheel (vee-pulley), output control wheel (synchronous pulley) adopt other driving type, and it is more flexible that design is used.
Claims (5)
1. friction overdrive clutch, this clutch comprise driving shaft is arranged (1), clutch inner sleeve (2), synchronous pulley (3), voussoir (4), clutch outer (5), vee-pulley (6), brake pad pallet (7), brake pad (8), piston (9), cylinder block (10), spring (11), swivel joint (12), brake rod (16); Said driving shaft is fixedly connected with the splined hole (701) of brake pad pallet through screw; Brake pad pallet, brake pad, piston are arranged in the cylinder block; Be provided with voussoir and bearing between clutch inner sleeve and the clutch outer, driving shaft is inserted in clutch inner sleeve, and the external diameter of clutch outer is provided with synchronous pulley and vee-pulley; Clutch outer is fixedly connected with vee-pulley, synchronous pulley through screw, and vee-pulley is fixedly connected with cylinder block through screw; It is characterized in that said cylinder block (10) is provided with brake rod (16); Brake rod passes cylinder block successively, piston (9) offsets with brake pad (8); Be provided with spring (11) between brake rod and the cylinder block; The bottom through-hole of cylinder block is provided with swivel joint (12), and swivel joint is connected with tracheae (15); The disc of said brake pad pallet (7) is provided with through hole, and the through hole of brake pad pallet is passed in a side of brake pad.
2. friction overdrive clutch according to claim 1 is characterized in that the another side of said brake pad (8) is provided with convex shoulder (801).
3. friction overdrive clutch according to claim 1, the through hole that it is characterized in that said brake pad pallet (7) are waist shaped hole (702), and the shape of brake pad (8) and the shape of through holes of brake pad pallet are adaptive.
4. friction overdrive clutch according to claim 2 is characterized in that the rounded disc that is uniformly distributed in the brake pad pallet of waist shaped hole (702) of said brake pad pallet (7).
5. friction overdrive clutch according to claim 3 is characterized in that the waist shaped hole (702) of said brake pad pallet (7) is a spline type, and the brake pad pallet waist shaped hole of the shape of brake pad and spline type is adaptive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203911501U CN202280761U (en) | 2011-10-14 | 2011-10-14 | Friction-type overrunning clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203911501U CN202280761U (en) | 2011-10-14 | 2011-10-14 | Friction-type overrunning clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202280761U true CN202280761U (en) | 2012-06-20 |
Family
ID=46226930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203911501U Expired - Fee Related CN202280761U (en) | 2011-10-14 | 2011-10-14 | Friction-type overrunning clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202280761U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216544A (en) * | 2013-04-13 | 2013-07-24 | 山东临工工程机械有限公司 | Friction plate type overrunning clutch assembly |
| CN114017449A (en) * | 2021-11-03 | 2022-02-08 | 泉州恒毅机械有限公司 | Bidirectional overrunning clutch and transmission mode |
-
2011
- 2011-10-14 CN CN2011203911501U patent/CN202280761U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103216544A (en) * | 2013-04-13 | 2013-07-24 | 山东临工工程机械有限公司 | Friction plate type overrunning clutch assembly |
| CN114017449A (en) * | 2021-11-03 | 2022-02-08 | 泉州恒毅机械有限公司 | Bidirectional overrunning clutch and transmission mode |
| CN114017449B (en) * | 2021-11-03 | 2024-05-17 | 泉州恒毅机械有限公司 | Bidirectional overrunning clutch and transmission mode |
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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: 20120620 Termination date: 20121014 |