CN201284782Y

CN201284782Y - Fast locking apparatus

Info

Publication number: CN201284782Y
Application number: CNU2008201757574U
Authority: CN
Inventors: 陈庭光
Original assignee: TOP GEARBOX INDUSTRY Co Ltd
Current assignee: Trinity Precision Tech Co Ltd
Priority date: 2008-10-28
Filing date: 2008-10-28
Publication date: 2009-08-05
Anticipated expiration: 2018-10-28

Abstract

The utility model provides a quick locking device, comprising a nut, a gasket, a thrust bearing, a keeper, a sun gear, an external ring and an upper cover; wherein, the gasket, the thrust bearing, the keeper, the sun gear, the external ring and the upper cover are sequentially arranged in series on the central column of the nut. A plurality of planet gears, springs and steel balls are arranged on the keeper, which are encapsulated by an internal space formed by the external ring, the nut and the upper cover. When the central column of the locking device is screwed in the thread, the steel ball can prop up the planet gear tightly to ensure the planet gear not to rotate. If the external ring is revolved at this moment, the screw can be locked in position smoothly through the external ring driving the sun gear to rotate and then the sun gear driving the nut to rotate. At the moment, the upper cover, the steel ball, the keeper, the thrust bearing and the gasket are in compressed state. However, when the external ring is screwed tightly and excessively, the resisting force of the sun gear is larger than the pushing force of the spring, thus driving the planet gear to rotate. Jumps are produced between the planet gear and the steel ball due to the pushing force of the spring and the pushing force drives the keeper to idle without damaging the locking device.

Description

Lock device fast

Technical field

The utility model has the output of high moment of torsion relevant for a kind of, operate more laborsaving and convenient load and unload fast lock device.

Background technique

In existing mechanical device, the especially processing machine, it adds the Runner assembly of the Ministry of worker usually can to use assemblies such as screw or nut or device to lock, for example grinding wheel of grinder etc.Yet, the locking operation of this class component or device, the purpose that must utilize screwdriver, spanner or other specific instrument just can reach locking or unclamp; In addition, such traditional locks fixing apparatus is not only in when operation effort, and preparation tool in addition during loading and unloading, is inconvenient for the staff.

The model utility content

Main purpose of the present utility model is to solve the traditional locks fixing apparatus and requires great effort when manipulating, and when loading and unloading the inconvenience of preparation tool in addition.

Lockup device provided by the utility model, its major character is to utilize the kind of drive of epicyclic train and design the device that locks that comprises a nut, a pad, a thrust bearing, a retainer, a sun gear, a plurality of spring, a plurality of steel ball, a plurality of planetary pinion, an outer shroud and a loam cake; Wherein, retainer is used for assembling described steel ball, spring and planetary pinion; When locking device fast when locking the screw thread of screw, utilizing each steel ball to hold out against each planetary pinion maintains static, this moment is when rotating outer shroud, utilize outer shroud to drive the sun gear rotation, drive the nut rotation by sun gear again, successfully locked screw, when locking, loam cake and steel ball, retainer, thrust bearing and pad all are in and press state, at this moment, and when continuing the rotation outer shroud again, the resistance of sun gear is greater than the thrust of spring, make planetary pinion begin to rotate, dally because of spring thrust can produce to beat and drive retainer between planetary pinion and the steel ball, damage to avoid locking device.In the time will dismantling, then drive planetary pinion rotation by the counterrotating outer shroud, drive steel ball simultaneously and on retainer, roll, after steel ball falls into hole on the retainer, make the roof pressure power of loam cake disappear, can the easy removal screw.

Technological means of the present utility model, be one newel to be set at a nut, the free end of this newel forms an internal thread, and a pad, a thrust bearing, a retainer and a sun gear are sheathed on this newel in regular turn, makes sun gear to rotate relatively with newel; Be distributed with a plurality of up outstanding first fin, second fin and the 3rd fins around on this retainer, wherein, the 3rd fin is located between this first fin and second fin in couples, and the hole that is provided with a plurality of axial perforations at this retainer; Described a plurality of planetary pinion is placed in this first fin and finishes and be pivoted, and a plurality of steel balls and spring be set on retainer, one end of this spring is butted on second fin, the other end then promotes steel ball and is contacted with this planetary pinion, and spring then is subjected to the restriction of paired second fin and can be at the retainer superior displacement; The outer shroud that internal diameter is provided with inner circular tooth then is placed in the nut periphery, makes inner circular tooth be engaged in those planetary pinions simultaneously, loam cake is covered at last the end in outer shroud again, and with the newel combination of nut.When locking device when locking the screw thread of screw, described each steel ball is subjected to spring action and holds out against each planetary pinion, make each planetary pinion to rotate, this moment is when rotating outer shroud, because of sun gear is incorporated into newel, thereby be able to when driving the sun gear rotation, drive the nut rotation by sun gear again, and can successfully lock screw, and when locking, loam cake and steel ball, retainer, thrust bearing and pad all are in and press state, at this moment, when continuing the rotation outer shroud again, dally because of spring thrust can produce to beat and drive retainer between planetary pinion and the steel ball, damage to avoid locking device.In the time will dismantling, counterrotating outer shroud then, this moment, inner circular tooth promptly drove the planetary pinion rotation, drove steel ball simultaneously and rolled on retainer, after steel ball falls into hole on the retainer, made the roof pressure power of loam cake disappear, and can easy removal lock device.

The technological means of the newel combination of sun gear of the present utility model and nut, be that outer surface at described newel is provided with at least one outerplanar, and the internal diameter of this sun gear is provided with at least one pair of should outerplanar inner plane, when sun gear was sleeved on newel, this outerplanar can prevent with the mutual fit of inner plane that sun gear is relative with newel and rotate.

The utility model is provided with outerplanar inner plane that should newel at the through hole internal diameter of described loam cake, make when loam cake is combined in newel, the outerplanar that utilizes this inner plane and newel cooperates and prevents that loam cake is relative with newel and rotate, when loam cake and newel combination, and after newel passes loam cake, the clasp ditch that utilizes clasp to be buckled in again to be located at newel is to prevent loam cake off center post.

Description of drawings

Fig. 1 locks the three-dimensional exploded view of the primary clustering combination relation of device fast for showing the utility model.

Fig. 2 locks the stereogram of the structure after the assemblying of device fast for showing the utility model.

Fig. 3 locks the internal structure of device fast for showing the utility model, and cooperates the embodiment's section plan that locks bolt.

Fig. 4 locks the floor map of device locking state fast for showing the utility model.

Fig. 5 is for showing that the utility model locks the floor map that device unscrews state fast.

When Fig. 6 A locks the device locking state fast for demonstration the utility model, the part plan schematic representation of steel ball between retainer and loam cake.

Fig. 6 B locks device when unscrewing state fast for showing the utility model, and steel ball drops in the part plan schematic representation of the hole of retainer.

Among the figure

1...... nut

10...... newel

11...... outerplanar

12...... internal thread

13...... clasp ditch

2...... pad

3...... thrust bearing

4...... retainer

41...... first fin

42...... hole

43...... second fin

431...... teat

44...... the 3rd fin

5...... planetary pinion

51...... tooth portion

52...... center hole

6...... sun gear

61...... tooth portion

62...... inner plane

7...... spring

8...... steel ball

9...... outer shroud

91...... inner circular tooth

1A...... loam cake

1A1...... circular groove groove

1A2...... through hole

1A3...... inner plane

1B...... clasp

B...... screw

Embodiment

Following conjunction with figs. is done more detailed description to embodiment of the present utility model, so that anyly have the knack of this operator and can implement according to this studying the present specification postscript carefully.

With reference to Fig. 1 and Fig. 2, the utility model provides locks device fast, its preferred embodiment, be that central authorities at a nut 1 extend axially a newel 10, the interior internal thread 12 that forms of axis hole that these newel 10 ends are set, and two outerplanars 11 that form correspondence in the relative both sides of newel 10 external diameters, near free-ended appropriate locations clasp ditch 13 is set then at newel 10.10 of this newels are inserted in combination one pad 2, a thrust bearing 3 and a retainer 4 in regular turn; Pad 2 is placed above the nut 1, and thrust bearing 3 places above the pad 2, retainer 4 places above the thrust bearing 3 again, allow retainer 4 can be on thrust bearing 3 be that the center rotates with newel 10.

Be distributed with a plurality of up outstanding first fin 41, second fin 43 and the 3rd fins 44 around on the described retainer 4, wherein, the 3rd fin 44 is located between this first fin 41 and second fin 43 in couples, and the hole 42 that is provided with a plurality of axial perforations at this retainer 4.The utility model is for the preferred embodiment of this retainer 4, be to utilize to have the circular plate body impact briquetting of suitable thickness and make, this first fin 41, second fin 43 and one the 3rd fin 44 wherein are up to be bent into vertical configuration again after the internal diameter from retainer 4 strikes out and to form, and 44 of another the 3rd fins up are bent into vertical configuration again after the external diameter impact briquetting of retainer 4 and form; Again, described second fin 43 is formed with teat 431 towards a side of first fin 41.41 of described each first fins make up a planet gear 5 respectively, make planetary pinion 5 to rotate freely at first fin 41.Again, between each the 3rd relative fin 44, insert a spring 7, make an end of spring 7 be inserted in the teat 431 of second fin 43, then insert a steel ball 8 between spring 7 the other ends and the planetary pinion 5, elastic force by spring 7 acts on steel ball 8, makes steel ball 8 contact at planetary pinion 5; In embodiment of the present utility model, described spring 7 is a kind of pressure springs.

Retainer 4 is combined in newel 10, and after spring 7 and steel ball 8 be combined in retainer 4, again a sun gear 6 is combined in newel 10, and the central authorities that are positioned at retainer 4 mesh with each planetary pinion 5 simultaneously, the inner plane 62 of being located at the relative both sides of sun gear 6 internal diameters is 10 liang of outerplanars 11 of corresponding newel, make it cooperate relief sun gear 6 can't be with respect to newel 10 rotations, and the tooth portion 51 that makes the tooth portion 61 of sun gear 6 mesh each planetary pinion 5 simultaneously; The outer shroud 9 that again internal diameter is had inner circular tooth 91 subsequently is combined in nut 1 periphery, make this inner circular tooth 91 be engaged in each planetary pinion 5 simultaneously, again a loam cake 1A is covered in axially top of outer shroud 9 at last, allow newel 10 pass the set through hole 1A2 of loam cake 1A central authorities, make the inner plane 1A3 that is located at the relative both sides of through hole 1A2 internal diameter cooperate two outerplanars 11 of newel 10 simultaneously, avoid enclosing cover 1A with respect to newel 10 rotation, utilize clasp 1B to be buckled in the clasp ditch 13 of newel 10 again and prevent loam cake 1A off center post 10; The circular groove groove 1A1 that is located at loam cake 1A one end face then provides each steel ball 8 that places on the retainer 4 to cooperate the wherein usefulness of rolling.Structure after aforementioned each assemblying sees also Fig. 3.

As shown in Figures 3 and 4, the aforementioned device that locks of the present utility model is when being used in locking nut B, because steel ball 8 is butted on the tooth portion 51 of planetary pinion 5, make planetary pinion 5 to rotate, this moment, inner circular tooth 91 can drive sun gears 6 when rotating outer shroud 9, but because of sun gear 6 chimeric with the newel 10 of nut 1, thereby sun gear 6 drives nut 1 rotation simultaneously, makes that locking device internal thread 12 locks screw B smoothly; When being locked to upper dead center, loam cake 1A withstands and is locked object, and the resistance that this moment, sun gear increased makes that greater than the thrust of spring 7 planetary pinion 5 begins to rotate, but planetary pinion 5 drives retainer idle running under this state, and because of producing " card card " sound with steel ball 8 effects; When continuing rotation outer shroud 9 this moment, because epicyclic train ties up to idling conditions, the problem of damaging so do not have excessively tight lock.Under this locking state, the steel ball 8 between loam cake 1A and the nut 1, retainer 4, thrust bearing 3 and pad 2 all are in the state (as shown in Figure 6A) that presses.

When dismantling when locking device, then the counterrotating outer shroud 9, at this moment, each planetary pinion 5 is subjected to inner circular tooth 91 drives and rotates, because retainer 4 is between steel ball 8 and thrust bearing 3, and steel ball 8 can roll along the direction of the circular groove groove 1A1 of loam cake 1A, causes surface friction drag low, so can easily rotate; The rolling distance of this steel ball 8 is 1/2nd of retainer 4 rotation distances.When the rolling distance of the rotation distance of retainer 4 and steel ball 8 differs and after causing steel ball 8 to fall into the hole 42 of retainer 4 (shown in Fig. 6 B), this moment, the roof pressure power of loam cake 10 disappeared immediately, just can be with nut 1 from the screw easy removal.Lock after device unloads when whole, spring 7 is again with steel ball 8 pushed home and involution is a reset condition.

The above person only is in order to explain preferred embodiment of the present utility model; be not that attempt is done any pro forma restriction to the utility model according to this; therefore; all have in that identical model utility spirit is following do relevant any modification of the present utility model or change, all should be included within the protection domain of the present utility model.

Claims

1. one kind locks device fast, it is characterized in that, comprising:

One nut has a newel, and the free end of this newel forms an internal thread;

One pad is sheathed on the newel of this nut;

One thrust bearing is sheathed on the newel of this nut, and places on this pad;

One retainer, be sheathed on the newel of this nut, and place on this thrust bearing, be distributed with a plurality of up outstanding first fin, second fin and the 3rd fins around on the described retainer, wherein, the 3rd fin is located between this first fin and second fin in couples, and the hole that is provided with a plurality of axial perforations at this retainer;

A plurality of planetary pinions, activity is combined in this first fin respectively;

One sun gear is incorporated into the newel of this nut and can't rotates relatively with this newel, and makes described each planetary pinion of this sun gear engagement;

A plurality of springs are located at respectively between first fin and second fin of this retainer, and this spring is inserted between a pair of described the 3rd fin;

A plurality of steel balls are located at respectively between described each spring one end and this planetary pinion, promote this steel ball by described spring;

One outer shroud, its internal diameter is provided with inner circular tooth, and an end of this outer shroud is combined in this nut, and makes this inner circular tooth be engaged in those planetary pinions simultaneously;

One loam cake is located at the other end of this outer shroud, and makes the newel of described nut pass the through hole of being located at this loam cake, and makes this loam cake and the combination of this newel.

2. the device that locks fast as claimed in claim 1 is characterized in that the outer surface of the newel of described nut is provided with at least one outerplanar, and the internal diameter of this sun gear be provided with at least one pair of should outerplanar inner plane.

3. the device that locks fast as claimed in claim 1 is characterized in that, the through hole internal diameter of described loam cake is provided with outerplanar inner plane that should newel.

4. the device that locks fast as claimed in claim 1 is characterized in that the external diameter of described newel is provided with the clasp ditch, after this newel passes the through hole of this loam cake, buckles into this clasp ditch with clasp, breaks away from this loam cake to prevent this newel.

5. the device that locks fast as claimed in claim 1 is characterized in that described second fin is provided with the teat that can be inserted in this spring end towards a side of described first fin.

6. the device that locks fast as claimed in claim 1 is characterized in that described spring is a pressure spring.