CN2597759Y - Circulation flow guiding pipe of nut seat of ball guide screw - Google Patents

Abstract

The utility model provides a circling nozzle of nut bearing of ball lead screw. The nut bearing is provided inside with a perforative screw hole, and two opposite sections at one side of the nut bearing are provided with an extending inserting hole along the direction of the worm groove; a nozzle with two branches are perpendicular tubes which have identical pipe diameter; and the level end of the two-branch nozzle is a communicated opening while the other end is vertical thrusting end, the terminal of the thrusting end is provided with a kerf and a finger portion; the two-branch nozzle is arranged at the external side of the nut bearing; and the thrusting end of the nozzle is inserted into the inserting hole; a cover board encloses the external side of the branch nozzle and is stick to the external side of the nut bearing. The utility model enables the thrusting end to automatically adjust according to the radian of the worm groove, therefore, the rolling ball can tumble smoothly and steadily. The utility model can also solve the problem of oil leaking.

Description

The circulation honeycomb duct of the nut seat of ball driving screw

[technical field]

The utility model relates to a kind of nut seat of ball driving screw, refers to a kind of circulation honeycomb duct of nut seat of ball driving screw especially.

[background technique]

The ball driving screw cooperates the parts of its nut seat very wide in the machinery utilization, can accurately control displacement stroke, wherein nut seat such as Fig. 5, shown in 6, nut seat (50) need connect one in the outside and supply ball in interior circuit honeycomb duct (60), wherein nut seat (50) is in the interior screw (51) that wears, screw (51) madial wall is provided with screw thread ditch (52), nut seat (50) outside is cut and is set out a plane (53), plane (53) is gone up and obliquely to be drilled with two and to stretch into hole (54), two to stretch into hole (54) be respectively to aim at screw thread ditch (52), to stretch into the honeycomb duct (60) that hole (54) plug-in mounting is one ㄇ shape two, honeycomb duct (60) two free ends are for inserting the spigot (61) that stretches into hole (54), spigot (61) end is established the otch (62) of nick shaped, the peripheral position that differs from otch (62) is provided with the finger (621) as the nail shape, other establishes a cover plate (65), establishes a drive cap groove (651) in the corresponding honeycomb duct in its bottom surface (60); Hole (54) is stretched in spigot (61) insertion with honeycomb duct (60), cooperate lid groove (651) aligning honeycomb duct (60) end face of cover plate (65) to cover again, and subsides are butted on plane (53), make cover plate (65) lock be affixed on nut seat (50) and go up location honeycomb duct (60) with Drop-proof, structure can supply ball-recirculation between each screw thread ditch (52) at honeycomb duct (60) even so, but it is to be solved that this honeycomb duct (60) design still exists many problems to have.

1. as shown in Figure 6, when the specification of nut seat (50) heals when big, more can produce a problem, the spigot (61) of honeycomb duct (60) is too outstanding compared to the cambered surface of screw thread ditch (52), and the screw thread ditch (52) that can't recline is being docile and obedient radian and is being settled.Because honeycomb duct (60) is to be a volume morphing, so between two spigots (61) apart from length, the relative position angle is all fixed, the spigot (61) of honeycomb duct (60) can't be complied with the radian tendency of spiral helicine screw thread ditch (52), so that after the plug-in mounting, terminal finger (621) lateral edge all can be than many emergences of arc groove face some of screw thread ditch (52), this emergence partly will cause the driving screw that is screwed together in screw thread ditch (52) to produce interference, even easily fractureed, so that driving screw rotates the obstruction problem that has some setbacks, and often produce noise, influence the operating environment quality; Even if be that the angle that changes two spigots (61) also can't change, stretch in the hole (54) because the interior curved meeting of angle can't allow spigot (61) put into, so this problem quite makes the dealer perplex always.

2. also existence can cause the shortcoming very smoothly that flows not of ball, forms the emergence situation of angle between flow because of ball the is finger (621) that is subjected to honeycomb duct (60) and the screw thread ditch (52), and moment is blocked the flowing velocity of ball, influences the flow stability of ball.

3. the lid groove (651) of cover plate (65) distribution system is along the straightway of honeycomb duct (60), fail to be coated fully as for honeycomb duct (60) and the circular arc rotation angle position between spigot (61) is connected, oil may be oozed out by otch (62), finger (621), spigot (61) position stream and cause leakage of oil, or dust easily takes advantage of the crack and enters screw thread ditch (52), influences the running smoothness of driving screw and nut seat (50).

[model utility content]

The purpose of this utility model provides a kind of circulation honeycomb duct of nut seat of ball driving screw, can allow the spigot of honeycomb duct comply with the radian of screw thread ditch automatically and adjust, guarantee corresponding the fitting perfectly of radian of spigot, position, finger and the screw thread ditch of honeycomb duct, thereby guarantee the mobile smooth and easy stable of ball, and solve the scarce fraud of possibility leakage of oil.

The utility model provides a kind of circulation honeycomb duct of nut seat of ball driving screw, is provided with the screw of penetration state in this nut seat, and this screw inwall forms the screw thread ditch along helical trajectory, it is characterized in that:

Each is equipped with the hole of stretching into of extension two opposite positions in one outside of this nut seat towards screw thread ditch direction;

Two branch's honeycomb ducts, it respectively is the right angle type pipe that an outer tube diameter equates, level one end of this two branches honeycomb duct is the port that communicates, the other end is the spigot of drawdown, be provided with otch and finger in this spigot end, this two branches honeycomb duct places the nut seat outside, and the spigot of this each branch's honeycomb duct inserts one and stretches within the hole;

One cover plate is coated on side outside this branch's honeycomb duct, and lock is affixed on this nut seat outer side surface.

The circulation honeycomb duct of the nut seat of described ball driving screw is characterized in that:

One side external surface of this nut seat is arranged with a fluting, be provided with a recessed deep gouge in this fluting, wear this in these deep gouge two ends and stretch into the hole, on this fluting face, differ from the deep gouge position and be provided with lockhole, this cover plate inside is arranged with the clip slot of one ㄇ shape, and this two branches water conservancy diversion is affixed on this nut seat deep gouge by the clip slot of this cover plate lock.

Through the above, the utlity model has following advantage:

1. the utility model system is by two branch's honeycomb ducts (20), (30) configuration is installed, exempt each branch's honeycomb duct (20), (30) spigot (22) plugs angle and can not check and balance, but comply with the automatic adjusted position of radian of screw thread ditch (12) separately, therefore finger (231) periphery can be submissive consistent as far as possible with screw thread ditch (12) radian, more Wu Yu finger (231) protrude in screw thread ditch (12) track and unlikely being fractureed, the flow speed stability height that allows ball flow simultaneously along screw thread ditch (12), can not interfere the running of driving screw, it is smooth and easy to guarantee to turn round, effectively reduce noise, can not rupture easily in finger (231), increased the working life of driving screw and nut seat (10) yet.

2. two branch's honeycomb ducts (20), (30) are via the standard of deep gouge (15), and port (21) end of two branch's honeycomb ducts (20), (30) is excessively staggered, cooperate cover plate (40) clip slot (41) to press from both sides comprehensively and cover branch's honeycomb duct (20), (30), not only branch's honeycomb duct (20), (30) polarization are good, more overcome leakage of oil, and dust enters and may lack fraud in the nut seat (10).

3. the utility model design is healed when big in nut seat (10) specification, more sees the use superiority.

For further understanding the structure characteristic and the practical effect of the utility model, cooperate graphic detailed description as back with preferred embodiment hereinafter described now:

[description of drawings]

Fig. 1 is the assembly three-dimensional exploded view of the utility model.

Fig. 2 is the stereo appearance figure of looking up of the utility model.

Fig. 3 is the plan view of the utility model.

Fig. 4 is the assembled sectional view of looking closely of the utility model.

Fig. 5 is the assembly three-dimensional exploded view of the nut seat of known ball driving screw.

Fig. 6 is the assembly three-dimensional exploded view of the nut seat of known ball driving screw.

[embodiment]

The circulation honeycomb duct of the nut seat of a kind of ball driving screw of the present utility model please referring to Fig. 1 to Fig. 3, mainly comprises:

One nut seat (10), still in the interior screw (11) that is provided with penetration state, screw (11) forms screw thread ditch (12) along helical trajectory, wherein the side external surface in nut seat (10) is arranged with one fluting (13), and fluting (13) is arranged with one deep gouge (15) downwards, deep gouge (15) two ends systems wears to be extended with and stretches into hole (14), and differs from deep gouge (15) position on fluting (13) face and be provided with lockhole (131);

Two branch's honeycomb ducts (20) (30), it respectively is the right angle type pipe that an outer tube diameter equates, form is symmetrical, with branch's honeycomb duct (20) is example, branch's honeycomb duct (20) level one end is port (21), the other end drawdown has spigot (22), and spigot (22) end is formed with otch (23) and finger (231);

One cover plate (40), inside are arranged with the clip slot (41) of together nearly ㄇ shape, are affixed on nut seat (10) deep gouge (15) with location branch's honeycomb duct (20), (30) in order to lock.

During combination, make two branch's honeycomb ducts (20), (30) place deep gouge (15), spigot (22) is entered towards hole (14) plug-in mounting that stretches into of two ends respectively, so two branch's honeycomb ducts (20), (30) be not to be a straight line completely in deep gouge (15) position, this branch's honeycomb duct (20), (30) length is short, stretch into hole (14) and screw thread ditch (12) position so not too can influence spigot (22) correspondence, so as Fig. 2, shown in 4, branch's honeycomb duct (20), (30) each finger (231) does not protrude in screw thread ditch (12) fully, finger (231) is submissive mutually with screw thread ditch (12) radian, two branch's honeycomb ducts (20), (30) port (21) sees through the restriction of deep gouge (15), and cover plate (40) enters fluting (13) and concordant with nut seat (10) outside radian, cooperate clip slot (41) not only to coat branch's honeycomb duct (20), (30) in deep gouge (15) first half position, further coat branch's honeycomb duct (20), (30) with the circular arc angle position of spigot (22), so guaranteed two branch's honeycomb ducts (20), (30) polarization and anti-leakage of oil effect.

Claims (2)

1. the circulation honeycomb duct of the nut seat of a ball driving screw is provided with the screw of penetration state in this nut seat, this screw inwall forms the screw thread ditch along helical trajectory, it is characterized in that:

Each is equipped with the hole of stretching into of extension two opposite positions in one outside of this nut seat towards screw thread ditch direction;

Two branch's honeycomb ducts, it respectively is the right angle type pipe that an outer tube diameter equates, level one end of this two branches honeycomb duct is the port that communicates, the other end is the spigot of drawdown, be provided with otch and finger in this spigot end, this two branches honeycomb duct places the nut seat outside, and the spigot of this each branch's honeycomb duct inserts one and stretches within the hole;

One cover plate is coated on side outside this branch's honeycomb duct, and lock is affixed on this nut seat outer side surface.

2. the circulation honeycomb duct of the nut seat of ball driving screw as claimed in claim 1 is characterized in that:

One side external surface of this nut seat is arranged with a fluting, be provided with a recessed deep gouge in this fluting, wear this in these deep gouge two ends and stretch into the hole, on this fluting face, differ from the deep gouge position and be provided with lockhole, this cover plate inside is arranged with the clip slot of one ㄇ shape, and this two branches water conservancy diversion is affixed on this nut seat deep gouge by the clip slot of this cover plate lock.

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