CN210153171U

CN210153171U - Single-ring split type screw rod scraping and brushing device and ball screw thereof

Info

Publication number: CN210153171U
Application number: CN201920608564.1U
Authority: CN
Inventors: 纪颖旻; 易崇皓; 游闵祥
Original assignee: PMI GROUP
Current assignee: PMI GROUP; Precision Motion Industries Inc
Priority date: 2019-04-29
Filing date: 2019-04-29
Publication date: 2020-03-17
Anticipated expiration: 2029-04-29

Abstract

The utility model discloses a split type screw rod of monocycle scrapes brush ware and ball screw thereof, this split type screw rod of monocycle scrapes brush ware is a ring form that two half angle ring body combinations constitute, and possess the outer peripheral face, inner peripheral surface and two axial sides, the corresponding concatenation end of two half angle ring bodies is equipped with the gomphosis component of mutual inlay card location, the outer peripheral face is equipped with a ring circumference card system ditch and plural axial draw-in groove, ring circumference card system ditch sets up along the ring circumference of outer peripheral face, and the first radial degree of depth of ring circumference card system ditch utensil, plural axial draw-in groove then is listed as along outer peripheral face interval ring, each axial draw-in groove utensil second radial degree of depth is greater than first radial degree of depth, make each axial draw-in groove utensil axial inner and axial open end, the axial open end runs through the screw rod and scrapes one of them axial side of brush ware, axial inner then is radial parallel and level relation with a.

Description

Single-ring split type screw rod scraping and brushing device and ball screw thereof

Technical Field

The utility model relates to a brush ware is scraped that ball screw used especially indicates an innovation monocycle split type screw rod and scrapes brush ware structural style.

Background

The utility model relates to a ball screw scrapes brush ware, it mainly is used for reaching and scrapes functions such as brush chip removal and dustproof.

In order to achieve a stable state with axial positioning and circumferential positioning rotation prevention, a limiting member must be additionally provided to generate a pressing and positioning effect on the wiper by using the limiting member; alternatively, there is also an industry to further process a groove for locking on the end face of the nut to prevent the wiper from rotating, so as to firmly position the wiper.

In view of the above-mentioned positioning structure of the scraper of the ball screw, it is found in practical experience that there are still too many components or too complicated manufacturing process, which results in too high manufacturing cost and not good industrial economic benefits.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a brush ware is scraped to split type screw rod of monocycle.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a single-ring split screw rod scraping and brushing device and a ball screw thereof are characterized in that two half-angle ring bodies are combined with each other to form a ring shape, the outer peripheral surface, the inner peripheral surface and two axial sides of the single-ring split screw rod scraping and brushing device are provided with two groups of connecting ends for combination, the corresponding connecting ends of the two half-angle ring bodies are provided with embedded components which are mutually embedded and clamped for positioning, and the inner peripheral surface of at least one half-angle ring body is convexly provided with a scraping and brushing lip in a thread shape; the outer circumferential surface of the single-ring split type screw rod scraping and brushing device is provided with a circumferential clamping groove and a plurality of axial clamping grooves, the circumferential clamping groove is arranged along the circumferential direction of the outer circumferential surface, the circumferential clamping groove has a first radial depth, the plurality of axial clamping grooves are arranged at intervals along the outer circumferential surface in a ring shape, each axial clamping groove has a second radial depth which is larger than the first radial depth, each axial clamping groove is in an axially extending shape and has an axial inner end and an axial opening end, the axial opening end penetrates through one axial side of the screw rod scraping and brushing device, the axial inner end is in radial parallel and level connection with one side groove wall of the circumferential clamping groove, and therefore the axial clamping grooves and the circumferential clamping grooves are in staggered configuration.

By this unique form and technical characteristic of innovation, make the utility model discloses the split type screw rod of monocycle is scraped and is brushed ware contrast prior art, and is usable two half angle ring bodies of symmetry form combine together to constitute a ring form, and its outer peripheral face is equipped with structure forms such as ring circumference card system ditch and plural axial draw-in groove to reach that the structure is simplified more, manufacturing cost reduces by a wide margin, and has the practical progress nature and the preferred industry economic benefits of firm location effect concurrently.

A ball screw comprises a screw, a nut and a plurality of balls, wherein the nut is provided with a through screw hole, the screw is screwed in the through screw hole, the balls are accommodated between the screw and the through screw hole, and a single-ring split screw wiper is arranged at one end of the through screw hole and sleeved on the periphery of the screw; wherein, the different positions of the through screw hole wall of the nut are locked with two positioning bolts, each positioning bolt is provided with a locking end which radially extends into the through screw hole, and the locking ends of the two positioning bolts are respectively embedded and matched with the circumferential clamping groove of the screw rod wiper and the corresponding axial clamping groove, thereby positioning the installation state of the single-ring split screw rod wiper.

Drawings

Fig. 1 is an exploded perspective view of the preferred embodiment of the present invention.

Fig. 2 is an exploded perspective view of the single ring split screw rod scraping and brushing device of the present invention.

FIG. 3 is an enlarged view of the engaging member of the single ring split screw wiper of the present invention.

Fig. 4 is a first side view of the single ring split screw wiper of the present invention.

Fig. 5 is a second side view of the single ring split screw wiper of the present invention.

Fig. 6 is a cross-sectional view of the 6-6 end of fig. 4.

Fig. 7 is a sectional view of the ball screw according to the present invention.

Fig. 8 is a partially enlarged view of fig. 7.

Fig. 9 is a perspective sectional view of the split screw wiper without the positioning bolt locked into the single ring.

Fig. 10 is a perspective cross-sectional view of a positioning bolt of the present invention inserted into the circumferential clamping groove.

Fig. 11 is a plan view corresponding to the state of fig. 10.

Fig. 12 is a perspective cross-sectional view of another positioning bolt of the present invention inserted into the axial slot.

Fig. 13 is a plan view corresponding to the state of fig. 10.

FIG. 14 is an exploded perspective view of another embodiment of the fitting member of the present invention.

Fig. 15 is an enlarged view of the fitting member shown in fig. 14.

Detailed Description

Referring to fig. 1 to 9, the preferred embodiment of the single ring split screw wiper and its ball screw of the present invention is provided for illustration purposes only and is not limited by the structure of the present invention.

The single-ring split type screw rod scraping and brushing device A is in a ring shape (usually made of soft plastic material), and is in a ring shape formed by combining two half-angle ring bodies 10 (note: the two half-angle ring bodies 10 are combined symmetrically, but the shapes of the two half-angle ring bodies are not completely symmetrical, and the local parts are different), the single-ring split type screw rod scraping and brushing device A is provided with an outer peripheral surface 20, an inner peripheral surface 30 and two axial sides 40, the two half-angle ring bodies 10 are both provided with two combined end parts 11 for combination, the corresponding combined end parts 11 of the two half-angle ring bodies 10 are provided with embedded components 12 which are mutually embedded and clamped and positioned, wherein a scraping and brushing lip 13 in a thread shape is convexly arranged on the inner peripheral surface 30 of at least one half-angle ring body 10; wherein, the outer peripheral surface 20 of the single-ring split screw rod wiper A is provided with a circumferential clamping groove 50 and a plurality of axial clamping grooves 60, the circumferential engaging groove 50 is provided along the circumferential direction of the outer peripheral surface 20, and as shown in FIG. 4, the circumferential locking groove 50 has a first radial depth H1, the plurality of axial locking grooves 60 are spaced along the outer circumferential surface 20, each axial locking groove 60 has a second radial depth H2, the second radial depth H2 is greater than the first radial depth H1, each axial slot 60 is axially extended and has an axial inner end 61 and an axial open end 62, the axial open end 62 penetrates one of the axial sides 40, the axial inner end 61 is in a radially flush connection with a side wall 51 of the circumferential clamping groove 50 (as shown in FIG. 4), thereby forming a staggered relationship between each axial locking groove 60 and the circumferential locking groove 50.

As shown in fig. 11, the pitch dimension (W1) of each axial slot 60 is greater than the slot width dimension (W2) of each axial slot 60.

As shown in FIGS. 4 and 6, in this embodiment, the axial locking grooves 60 and the circumferential locking grooves 50 are arranged in a staggered manner perpendicular to each other.

The circumferential catching grooves 50 have the same groove width dimension as the axial catching grooves 60.

As shown in fig. 2 and 3, in this embodiment, the engaging member 12 disposed at the coupling end 11 of the two half angle ring bodies 10 includes two

axial abutting surfaces

121 and 122 respectively disposed at the coupling end 11 of the two half angle ring bodies 10, and a dovetail block 123 and a dovetail groove 124 respectively disposed at the different

axial abutting surfaces

121 and 122, wherein the dovetail block 123 and the dovetail groove 124 are radially engaged with each other for insertion or detachment; in this configuration, a scraping and brushing lip 13 in a screw shape is disposed on the inner peripheral surface 30 of one half angle ring 10 (or the two half angle rings 10).

As shown in fig. 14 and 15, in this embodiment, the engaging member 12B disposed at the coupling end 11B of the two half angle ring bodies 10B includes two radial abutting surfaces 125 respectively disposed at the coupling end 11B of the two half angle ring bodies 10B, a dovetail block 123B and a dovetail groove 124B respectively disposed at the two radial abutting surfaces 125, wherein the dovetail block 123B and the dovetail groove 124B are axially inserted or disassembled; in this configuration, only the inner peripheral surface 30 of one of the half-angle ring bodies 10B is provided with a scraping and brushing lip 13 in a screw shape. In this embodiment, since the dovetail block 123B and the dovetail groove 124B are axially engaged and disengaged, the application is limited to installation without teeth, and only the inner circumferential surface 30 of one half of the angle ring 10B can be provided with the wiping lip 13, so as to achieve the axial engagement and disengagement between the dovetail block 123B and the dovetail groove 124B.

Furthermore, the present invention further provides a ball screw B, the ball screw B comprises a screw 70, a nut 80 and a plurality of balls 90, the nut 80 has a through screw hole 81, the screw 70 is screwed in the through screw hole 81, the balls 90 are accommodated between the screw 70 and the through screw hole 81, the single-ring split screw wiper a is installed at one end of the through screw hole 81 and is sleeved on the periphery of the screw 70; wherein, two positioning bolts 82 are locked at different positions of the hole wall of the through screw hole 81 of the nut 80, each positioning bolt 82 has a locking end 821 radially extending into the through screw hole 81, and wherein the locking ends 821 of the two positioning bolts 82 are respectively engaged with the circumferential engaging grooves 50 of the single ring split type screw wiper A and the corresponding axial engaging grooves 60, thereby positioning the installation state of the single ring split type screw wiper A.

As shown in fig. 5 and 6, the circumferential engaging grooves 50 and the axial engaging grooves 60 have groove widths equal to the outer diameter of the locking ends 821 of the positioning bolts 82. The proportional mode shown in this example is mainly to allow the single-ring split screw wiper a to be stably positioned in any circumferential rotation direction or axial direction without any deviation after being locked by the positioning bolt 82. Furthermore, the two positioning bolts 82 are respectively disposed on two sides of the through screw hole 81 of the nut 80, which are opposite to each other at an angle of 180 degrees, wherein the locking end 821 of one positioning bolt 82 is opposite to the circumferential clamping groove 50, and the locking end 821 of the other positioning bolt 82 is opposite to one of the axial clamping grooves 60. The configuration shown in the present embodiment is mainly intended to increase the smoothness and efficiency of the single-ring split screw wiper a in the circumferential rotation direction and the axial installation and positioning state.

As shown in fig. 10 to 11, when the single ring split type screw wiper a is installed and positioned, the locking end 821 of one of the positioning bolts 82 is inserted into the circumferential clamping groove 50 in an aligned manner, so as to form a state that the single ring split type screw wiper a is axially positioned and the circumferential direction is still rotatable (as shown by arrow L1), and then as shown in fig. 12 to 13, the locking end 821 of the other positioning bolt 82 is inserted into the corresponding axial clamping groove 60 in an aligned manner, so as to further form a state that the single ring split type screw wiper a is also positioned and non-rotatable in the circumferential direction.

It is conceivable that when the single ring split type screw wiper a is installed and positioned, the locking end 821 of one of the positioning bolts 82 is first inserted into the corresponding axial slot 60 in an aligned manner, so as to form a state in which the single ring split type screw wiper a is positioned in the circumferential direction but is still axially movable, and then the locking end 821 of the other positioning bolt 82 is inserted into the circumferential slot 50 in an aligned manner, so as to further form a state in which the single ring split type screw wiper a is also positioned in the axial direction but is not axially movable. (Note: the description in this paragraph is only the reverse operation of FIGS. 11 to 13, so the drawings are omitted)

The single-ring split type screw rod scraping and brushing device A of the utility model has flexibility in installation and positioning, can be used for positioning in the circumferential rotation direction firstly and positioning in the axial direction firstly, and can achieve the ideal state that the positioning bolt 82 is stable and can not deviate randomly once locked; on the other hand, compared with the conventional scraper limiting structure form that a limiting member is additionally arranged or a groove for clamping is formed by reprocessing the end face of the nut, the single-ring split type screw scraper A of the present invention only utilizes the simple form feature that the two symmetrical half-angle ring bodies 10 are combined to form a single ring form, so as to achieve better industrial economic benefits with a simplified structure and greatly reduced manufacturing cost.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A single-ring split type screw rod scraping and brushing device is characterized in that the single-ring split type screw rod scraping and brushing device is in a ring shape formed by combining two half angle ring bodies, each single-ring split type screw rod scraping and brushing device is provided with an outer peripheral surface, an inner peripheral surface and two axial sides, the two half angle ring bodies are provided with two joint ends for combination, the corresponding joint ends of the two half angle ring bodies are provided with embedded components which are mutually embedded and clamped for positioning, and the inner peripheral surface of at least one half angle ring body is convexly provided with a scraping and brushing lip in a thread shape; the outer circumferential surface of the single-ring split type screw rod scraping and brushing device is provided with a circumferential clamping groove and a plurality of axial clamping grooves, the circumferential clamping groove is arranged along the circumferential direction of the outer circumferential surface, the circumferential clamping groove is provided with a first radial depth, the plurality of axial clamping grooves are arranged at intervals along the outer circumferential surface in a circular manner, each axial clamping groove is provided with a second radial depth, the second radial depth is larger than the first radial depth, each axial clamping groove is in an axially extending shape and is provided with an axial inner end and an axial opening end, the axial opening end penetrates through one axial side, the axial inner end is in radial parallel and level connection with one side groove wall of the circumferential clamping groove, and therefore the axial clamping grooves and the circumferential clamping grooves are in staggered configuration.

2. The single ring split screw squeegee of claim 1 wherein the pitch dimension of each axial slot is greater than the slot width dimension of each axial slot.

3. The single ring split screw wiper according to claim 2, wherein the circumferential catching grooves have a groove width dimension equal to that of each axial catching groove.

4. The single ring split screw wiper of claim 3, wherein the axial engaging grooves and the circumferential engaging grooves are disposed in a staggered relationship perpendicular to each other.

5. The single ring split type screw rod scraper of any one of claims 1 to 4, wherein the coupling end of the two half-angle ring bodies is provided with an embedded member comprising two axial abutting surfaces respectively arranged at the coupling end of the two half-angle ring bodies, and a dovetail block and a dovetail groove respectively arranged at different axial abutting surfaces, wherein the dovetail block and the dovetail groove are in a radially inserted or disassembled fit relation; in this configuration, the inner peripheral surface of one or both of the half-angle ring bodies is provided with a wiping lip.

6. The single ring split type screw rod scraper according to any one of claims 1 to 4, wherein the coupling ends of the two half-angle ring bodies are provided with an embedded member comprising two radial abutting surfaces respectively arranged at the coupling ends of the two half-angle ring bodies, and a dovetail block and a dovetail groove respectively arranged at different axial abutting surfaces, wherein the dovetail block and the dovetail groove are in a fit relationship of axial insertion and disassembly; in this configuration, only one of the half-angle ring bodies has a wiping lip on its inner circumferential surface.

7. A ball screw, characterized in that the ball screw comprises the single-ring split type screw wiper of any one of claims 1 to 6, and the ball screw further comprises a screw, a nut and a plurality of balls, the nut is provided with a through screw hole, the screw is screwed in the through screw hole, the balls are accommodated between the screw and the through screw hole, the single-ring split type screw wiper is arranged at one end of the through screw hole and sleeved on the periphery of the screw; wherein, the different positions of the through screw hole wall of the nut are locked with two positioning bolts, each positioning bolt is provided with a locking end which radially extends into the through screw hole, and the locking ends of the two positioning bolts are respectively embedded and matched with the circumferential clamping groove of the screw rod wiper and the corresponding axial clamping groove so as to position the installation state of the single-ring split screw rod wiper.

8. The ball screw of claim 7, wherein the circumferential detent groove has a groove width dimension that is the same as a groove width dimension of each of the axial detents.

9. The ball screw of claim 8, wherein the circumferential locking groove and the axial locking groove have a groove width dimension equal to the outer diameter dimension of the locking end of each positioning bolt, and the two positioning bolts are respectively disposed on two sides of the through-hole wall of the nut in 180 degree angle opposition to each other, such that the locking end of one of the positioning bolts is opposed to the circumferential locking groove and the locking end of the other one of the positioning bolts is opposed to the one of the axial locking grooves.