CN2215628Y

CN2215628Y - Adjustable torque force controller

Info

Publication number: CN2215628Y
Application number: CN 94213347
Authority: CN
Inventors: 黄金潭
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-06-09
Filing date: 1994-06-09
Publication date: 1995-12-20
Anticipated expiration: 2004-06-09

Abstract

The utility model relates to an adjustable torque force controller which is suitable for drilling, tapping and screw fastening, and for members and devices requiring setting proper transmission forces, such as motive power transmission devices. The utility model mainly comprises a main body in which a footstep bearing, a spring, an output shaft, an input shaft, a shifting plate, a cascade ring and other elements are arranged. The steel ball on the disc surface of the input shaft can be inlaid into the concave hole of the output shaft by the spring, so that motive power can be transmitted by the input shaft onto the output shaft. Different transmission forces can be generated by the output shaft by using distance changes which are generated during the displacements of the cascade ring and the shifting plate. If the resistance is too big, the transmission force can start aside due to the disengagement of the steel ball from the concave hole, so that workpieces can be avoided from being destroyed, and the safety protective effect can be obtained.

Description

Adjustable torque force controller

The utility model relates to a kind of Torque Controller, particularly relates to the adjustable transmission device of a kind of torsion.

Generally, when assembled article, as using plastics and metal or plastics and plastics, or the fastening location of precision machinery or the like, because the mechanical property difference of workpiece, therefore needed torsion strength difference when fastening, if utilize general pneumatic tool or electric tool, tend to grasp the size of ouput force, and then can damage member or make up imperfect, moreover, use the drilling machine drilling and tapping, if run into the bigger position of hardness, and there is not the controller of safety also can cause losing of thread tapper or drill bit.

Briefly, if a plastic board is combined with iron plate, the strength of its combination is same as iron plate and iron plate scarcely, perhaps plastics and plastics, suppose to use screwdriver, men and women's application of force size is also different, causes when assembling to be difficult to provide the most appropriate strength, and the excessive plastic board sometimes of strength can break, too small easy again loose coming off, so good combination must be set appropriate torsion, then not only can avoid being damaged to article, can not come off again.

The purpose of this utility model is to provide a kind of adjustable torsion controller, can adjust different torque magnitude, and reaches the transmission of may command torsion.

The technical solution of the utility model is such: it comprises the body of circular hollow, force-output shaft, thrust bearing, inputting shaft, spring, pass plate, cascade ring and adjustment ring etc., inner edge surface is provided with several grooves in the body outlet port, insert thrust bearing and force-output shaft in the body successively, coincide mutually in the card of force-output shaft and the card of inputting shaft, spring housing is on inputting shaft, and be clamped between inputting shaft pad and the passing plate, be provided with several lugs in passing the plate outer rim again, and embed in the intrinsic groove, on the cascade ring end face, be provided with the array ladder, adjusting in the ring is hollow, cascade ring is placed on the inner peripheral end surfaces place that adjusts ring, pass the adjustment ring with screw and fix with cascade ring, the ladder of cascade ring contacts with the passing plate.

Aforesaid force-output shaft card and inputting shaft card are coincide mutually, it is the shrinkage pool that several appropriate depth are set on the force-output shaft card, correspondence is provided with several perforation on the inputting shaft card, its inside steel ball of packing into, cover in this perforation with pad, steel ball just exposes suitable ball face and embeds in the shrinkage pool.

Below in conjunction with accompanying drawing and specific embodiments the utility model is described in detail.

Description of drawings:

Fig. 1 is the utility model one embodiment's a assembled sectional view;

Fig. 2 is the utility model one embodiment's a three-dimensional combination decomposition figure;

Fig. 3 is the utility model one embodiment's stereoscopic figure.

As shown in Figure 1, this adjustable torsion controller comprises: crewdriver attachment (1), be general hexagon cylinder, be set in the center hole of force-output shaft (2), the card (21) of force-output shaft (2) is coincide mutually with the card (31) of inputting shaft (3), it can utilize each other card that shaggy tooth is set to be connected and to be rotatably assorted, or be the best with steel ball replacement shaggy tooth in addition, that is: the shrinkage pool (22) of several appropriate depth is set on the card (21) of force-output shaft (2), on inputting shaft (3) card (31) corresponding to card (21), corresponding several perforation (32) are set, among the figure four shrinkage pools that match (22) and perforation (32), card (31) thickness is suitable, steel ball (33) is respectively inserted in inside, steel ball (33) number is not limit, be shown two among the figure, another side in card (31), utilize a pad (34) to cover in the perforation (32), elastic force extruding by spring (4), make steel ball (33) just expose suitable ball face and embed in the shrinkage pool (22), form the state of coincideing, inputting shaft (3) can be rotated drive force-output shaft (2) by this identical state and rotate simultaneously, the twisting resistance that power produces if force-output shaft (2) is hampered increases, its intensity is as if the torsion that is produced greater than spring (4), the state that then coincide promptly destroys, steel ball this moment (33) breaks away from shrinkage pool (22), inputting shaft (3) promptly can't drive force-output shaft (2) rotation, in other words, and the identical state of the pressure of spring (4) decision.Body (5) is the cylinder hollow article, and other establishes circular body lining (51), is placed in the place of portalling in the body (5), on interior peritreme face, be provided with several grooves (53) in addition, shown in the figure dotted line, embed for the lug (61) of passing plate (6), and thrust bearing of packing into (52) and spring (4); Passing plate (6) is circular body, and its outer rim is provided with lug (61), and lug (61) is not limit, except that embedding groove (53), and also must be corresponding with the ladder (71) on the cascade ring (7); Cascade ring (7) is circular body, is provided with the ladder (71) of array cascade drop on lateral end panel, can stablize and evenly promotes to pass rising and falling of plate (6), and the group number of ladder is preferably identical with the number of lug (61); Relief frame (8) is a circular body, and interior is hollow, is enclosed within body (5) outlet port, and it is fixing with cascade ring (7) to pass relief frame (8) with set screw (82), can rotate simultaneously, and aluminium sheet (83) is the aluminium sheet of modification.

As shown in Figure 2, insert lining (51) in the body (5) respectively, thrust bearing (52) and force-output shaft (2), it is identical mutually with the steel ball (33) on the inputting shaft (3) that disc face (21) in force-output shaft (2) is provided with scrobicula hole (22), spring (4) presses inputting shaft (3) through pad (34), other inserts and passes plate (6), lug on it (61) is shored mutually with the ladder (71) on the cascade ring (7), and be embedded in body (5) upper groove (53), when cascade ring (7) rotates, ladder (71) forces to be passed plate (6) or rises or fall, and pass plate (6) because of lug (61) being arranged in groove (53), so passing plate (6) does not rotate, and only on inputting shaft (3) axial, do displacement, and force spring (4) to do the change of decrement, promptly change the torsion force size.

Operating principle of the present utility model is: when the stressed rotation of inputting shaft (3), make the push-jump force-output shaft of steel ball (33) (2) through inputting shaft card (31), if the compression degree of spring (4) is littler, be that the spring length change is little, a little less than then the torsion that can bear is healed, compression degree is bigger, then the torsion that can bear is stronger, and the strong and weak method of adjustment spring (4), it is handle (81) rotation by relief frame (8), driving cascade ring (7) makes the lug (61) of passing plate (6) in contact height step therein difference, passing plate (6) is shifted to the left and right, its displacement amount promptly changes in the interval of step therein, make spring (4) produce the pressure that varies in size, will little cascade ring (7) be drawn back, pass plate (6) and be subjected to the pressure of spring (4) if reverse strength, promptly reduce the torsion that enables to bear relatively and reduce, otherwise then strengthen.For avoiding inner part in addition to be subjected to the pushing of spring (4), and outwards come off.For protecting whole combination, can combine with body (5) with the relation of screwing togather by relief frame (8), but except that spiral shell is moving, and establish stuck point in addition and avoid breaking away from fully, fastened by before and after the C type ring (54) again.Because this section construction can many formulas change, so do not give unnecessary details in this.

As shown in Figure 3; its front end can be inserted in crewdriver attachment (1) on force-output shaft (2) among the figure; outer rim cover jug (81) and the relief frame (8) and the inputting shaft (3) of body (5); when adjusting ring (8) rotation displacement; select needed torque magnitude; by setting in the graduation line (55); during use; it can be connected with screwdriver, pneumatic tool, electric tool or drilling machine; fastening, hole or add man-hour; not because of surpassing too big power, and the destruction work thing, so have the protective action of specific safety.

In sum, superiority of the present utility model is, the adjustable torsion controller can be set earlier on the strength of transmission according to need, can keep certain torsion man-hour adding, if escape automatically when running into excessive resistance, can not damage working substance, thereby reach torsion control as safe as a house.

Claims

1, a kind of adjustable torsion controller, it is characterized in that: it comprises the body (5) of circular hollow, force-output shaft (2), thrust bearing (52), inputting shaft (3), spring (4), pass plate (6), cascade ring (7) and adjustment ring (8), inner edge surface is provided with several grooves (53) in body (5) outlet port, insert thrust bearing (53) and force-output shaft (2) in the body (5) successively, card (21) in force-output shaft (2) is coincide mutually with the card (31) of inputting shaft (3), spring (4) is enclosed within on the inputting shaft (3), and be clamped between the pad (34) and passing plate (6) of inputting shaft (3), be provided with several lugs (61) in passing plate (6) outer rim, and be embedded in the interior groove (53) of body (5), on cascade ring (7) end face, be provided with array ladder (71), adjusting in the ring (8) is hollow, cascade ring (7) is placed on the inner peripheral end surfaces place that adjusts ring (8), it is fixing with cascade ring (7) to pass adjustment ring (8) with screw (82), and the ladder (71) of cascade ring (7) contacts with passing plate (6).

2, adjustable torsion controller according to claim 1, it is characterized in that: the shrinkage pool (22) that several appropriate depth are set on the card (21) of force-output shaft (2), on the card (31) of inputting shaft (3), correspondence is provided with several perforation (32), its inside steel ball (33) of packing into, cover in this perforation (32) with pad (34), steel ball (33) exposes suitable ball face and embeds in the shrinkage pool (22), forms the state of coincideing.