CN211951357U - Gear type nut transmission type ball screw device - Google Patents

Abstract

The utility model discloses a gear formula nut transmission type ball screw device, including casing and end cover, bilateral symmetry fixed connection is provided with the slide rail in the casing, sliding fit connects on the slide rail and is provided with the slider, it is provided with the lead screw to rotate the connection on the end cover, the terminal fixed connection that the casing was kept away from to the lead screw is equipped with the screwed joint, the last movable sleeve of screwed joint is equipped with the gasket that two sets of symmetries set up, is equipped with the gear between two sets of gaskets, the gear passes through screw-thread fit and screwed joint matches, the screwed joint middle part is run through and is provided with the through-hole, and through-hole bilateral symmetry connects and is provided with the fastener, fastener and the through connection of. The utility model discloses a movable assembly of fastener can be convenient for follow lead screw one side activity with the gear and dismantle, and whole device can both dismantle the maintenance, and it is more convenient to use, and the structure cooperation through slider and slide rail, and the transmission is more steady, and is spacing more stable and nimble.

Description

Gear type nut transmission type ball screw device

Technical Field

The utility model relates to a lead screw cooperation technical field specifically is a gear formula nut transmission type ball screw device.

Background

The ball screw is the most commonly used transmission element on tool machinery and precision machinery, and has the main function of converting rotary motion into linear motion or converting torque into axial repeated acting force, and has the characteristics of high precision, reversibility and high efficiency. Ball screws are widely used in various industrial equipments and precision instruments due to their small frictional resistance.

In the prior art, the matching structure of the ball screw is mature, but the whole transmission structure is inconvenient to disassemble and inconvenient to maintain in use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a gear formula nut transmission type ball screw device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a gear formula nut transmission type ball screw device, includes casing and end cover, bilateral symmetry fixed connection is provided with the slide rail in the casing, sliding fit connects on the slide rail and is provided with the slider, it is provided with the lead screw to rotate the connection on the end cover, the terminal fixed connection that the casing was kept away from to the lead screw is equipped with the screwed joint, the movable sleeve is equipped with the gasket that two sets of symmetries set up on the screwed joint, is equipped with the gear between two sets of gaskets, the gear passes through screw-thread fit and screwed joint matches, the screwed joint middle part runs through and is provided with the through-hole, and through-hole bilateral symmetry connects and is provided with the fastener, fastener and.

Furthermore, the screw rod movably penetrates through the sliding block through thread fit, and the tail end of the screw rod is abutted to the bottom in the shell.

Furthermore, the clamping piece is a U-shaped structure clamping piece, one end of the clamping piece is movably clamped on the through hole, and the other end of the clamping piece is movably attached to the end part of the threaded connector.

Further, the slide rail includes the track strip of fixed connection on the casing lateral wall, the track strip is bar-type structure, and is two sets of the relative side symmetry embedding of track strip is provided with the spacing groove, the extending direction of spacing groove and track strip is unanimous, and the spacing groove link up track strip tip, the upper and lower bilateral symmetry embedding of track strip is provided with multiunit second ball, the activity embedding of second ball is on the track strip, and sets up the direction and distribute along track strip extending direction.

Further, the slider sets up draw-in groove and the first ball of swing joint at the draw-in groove inboard at the plate body both ends including the plate body, the embedding that set up between two sets of track strips, plate body and lead screw pass through screw-thread fit swing joint, draw-in groove and track strip set up relatively, and in the draw-in groove both sides respectively with the second ball activity laminating of track strip both sides, the position relative with the spacing groove of first ball activity embedding in the draw-in groove, just first ball and spacing inslot bottom activity laminating.

Compared with the prior art, the beneficial effects of the utility model are that: through the movable assembly of fastener, can be convenient for follow lead screw one side activity with the gear and dismantle, can enough guarantee that the transmission is stable, also can remove the end cover from the casing after dismantling, take off the slider from the slide rail then, whole device can both dismantle the maintenance, and it is more convenient to use, and through the structure cooperation of slider and slide rail, the transmission is more steady, and is spacing more stable and nimble.

Drawings

Fig. 1 is a schematic structural view of a gear-type nut transmission type ball screw device.

Fig. 2 is an enlarged schematic view of a region a in fig. 1.

Fig. 3 is a schematic structural view of a slider in a gear-type nut-transmission ball screw device.

Fig. 4 is a schematic structural view of a slide rail in a gear-type nut transmission type ball screw device.

In the figure: 1-shell, 2-end cover, 3-screw rod, 31-threaded joint, 4-slide block, 41-plate body, 42-clamping groove, 43-first ball, 5-sliding rail, 51-rail strip, 52-limiting groove, 53-second ball, 6-gasket, 7-gear, 8-clamping piece and 9-limiting bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1

Referring to fig. 1-2, in the embodiment of the present invention, a gear-type nut transmission ball screw device comprises a housing 1 and an end cover 2, wherein slide rails 5 are symmetrically and fixedly connected in the housing 1, slide blocks 4 are slidably and fittingly connected to the slide rails 5, a screw rod 3 is rotatably connected to the end cover 2, the screw rod 3 movably penetrates through the slide blocks 4 through screw-thread fit, and the end of the screw rod 3 abuts against the bottom of the housing 1, a screw joint 31 is fixedly connected to the end of the screw rod 3 away from the housing 1, two sets of symmetrically arranged gaskets 6 are movably sleeved on the screw joint 31, a gear 7 is arranged between the two sets of gaskets 6, the gear 7 is matched with the screw joint 31 through screw-thread fit, a through hole is penetratingly arranged in the middle of the screw joint 31, clamping members 8 are symmetrically connected to two sides of the through hole, and the clamping members, and 8 one end activity joint of fastener 8 is on the through-hole, and the other end and the movable laminating of screwed joint 31 tip, fastener 8 and the laminating department of screwed joint 31 tip run-through connection are provided with spacing bolt 9, spacing bolt 9 is with 8 activity locking of two parts fastener, fastener 8 also can be with gasket 6 and gear 7 butt close at the tip that screwed joint 31 is close to lead screw 3.

End cover 2 is fixed at 1 tip of casing through the pin assembly, end cover 2 and 1 swing joint of casing can convenient to detach, open the back when end cover 2, can make things convenient for slider 4 to take off from between slide rail 5, are convenient for maintain the maintenance, and the movable assembly of fastener 8 can conveniently fix gear 7 at 3 distolateral sides of lead screw, and gear 7 can cooperate with the drive structure that the motor is connected to control lead screw 3 to carry out corotation or upset, form slider 4 then and remove on slide rail 5.

Example 2

Referring to fig. 3 to 4, in an embodiment of the present invention, a gear-type nut transmission-type ball screw device, the slide rail 5 includes a track strip 51 fixedly connected to a side wall of the housing 1, the track strip 51 is a bar structure, two sets of limit grooves 52 are symmetrically embedded in opposite sides of the track strip 51, the extending directions of the limit grooves 52 and the track strip 51 are consistent, the limit grooves 52 penetrate through the end portion of the track strip 51, a plurality of sets of second balls 53 are symmetrically embedded in upper and lower sides of the track strip 51, the second balls 53 are movably embedded in the track strip 51, and the extending directions of the second balls are distributed along the track strip 51.

Slider 4 sets up at the draw-in groove 42 and the inboard first ball 43 of swing joint in draw-in groove 42 at the plate body 41 both ends including the plate body 41, the embedding that sets up between two sets of track strips 51, plate body 41 and lead screw 3 pass through screw-thread fit swing joint, draw-in groove 42 and track strip 51 set up relatively, and both sides respectively in the draw-in groove 42 with the second ball 53 activity laminating of track strip 51 both sides, the position relative with spacing groove 52 of first ball 43 activity embedding in draw-in groove 42, just bottom activity laminating in first ball 43 and the spacing groove 52. When the draw-in groove 42 joint of plate body 41 both sides on track strip 51, draw-in groove 42 and second ball 53 form clearance fit, and first ball 43 and spacing groove 52 cooperate simultaneously to it is spacing to form through the cooperation of first ball 43 and spacing groove 52, and such design can make things convenient for the steady removal of plate body 41 between track strip 51, assembles more stably in a flexible way.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connection mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt prior art, and conventional model, including circuit connection adopts conventional connection mode among the prior art, does not detailed here again.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims (5)

1. A gear type nut transmission type ball screw device, which comprises a shell (1) and an end cover (2), it is characterized in that slide rails (5) are symmetrically and fixedly connected with the two sides in the shell (1), the slide rail (5) is provided with a slide block (4) in a sliding fit connection way, the end cover (2) is provided with a screw rod (3) in a rotating connection way, the tail end of the screw rod (3) far away from the shell (1) is fixedly connected with a threaded joint (31), two groups of symmetrically arranged gaskets (6) are movably sleeved on the threaded joint (31), a gear (7) is arranged between the two groups of gaskets (6), the gear (7) is matched with the threaded joint (31) through thread matching, a through hole is arranged in the middle of the threaded joint (31) in a penetrating way, clamping pieces (8) are symmetrically connected and arranged on two sides of the through hole, and a limiting bolt (9) is arranged at the joint of the end parts of the clamping piece (8) and the threaded joint (31) in a penetrating manner.

2. A gear-type nut-transmission ball screw device according to claim 1, wherein said fastener (8) is a "U" shaped fastener, and one end of said fastener (8) is movably fastened to said through hole, and the other end is movably attached to the end of said threaded joint (31).

3. A gear type nut transmission type ball screw device according to claim 1, wherein the slide rail (5) comprises rail strips (51) fixedly connected to the side wall of the housing (1), the rail strips (51) are of a strip structure, two sets of limiting grooves (52) are symmetrically embedded in the opposite side surfaces of the rail strips (51), the extending directions of the limiting grooves (52) and the rail strips (51) are consistent, the limiting grooves (52) penetrate through the end portions of the rail strips (51), a plurality of sets of second balls (53) are symmetrically embedded in the upper side and the lower side of the rail strips (51), the second balls (53) are movably embedded in the rail strips (51), and the arrangement directions are distributed along the extending direction of the rail strips (51).

4. A gear nut transmission type ball screw device according to claim 3, wherein said screw (3) is movably passed through the slider (4) by screw-fitting, and the end thereof is abutted against the inner bottom of the housing (1).

5. The gear-type nut transmission type ball screw device according to claim 1, wherein the slider (4) comprises a plate body (41) arranged between the two sets of track strips (51), clamping grooves (42) embedded at two ends of the plate body (41) and first balls (43) movably connected to the inner sides of the clamping grooves (42), the plate body (41) and the screw (3) are movably connected through thread fit, the clamping grooves (42) and the track strips (51) are oppositely arranged, two sides of the interior of each clamping groove (42) are movably attached to second balls (53) on two sides of each track strip (51), the first balls (43) are movably embedded in the clamping grooves (42) at positions opposite to the limiting grooves (52), and bottoms of the first balls (43) and the limiting grooves (52) are movably attached to each other.

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