TWM583004U - Single-ring split type screw wiper and ball screw thereof - Google Patents

Abstract

The present invention provides a single-ring split type screw scraper and a ball screw thereof, wherein the single-ring split type screw scraper is a ring-shaped type composed of a combination of two-half-shaped rings, and has an outer peripheral surface and an inner peripheral surface. And the two axial sides, the two half-shaped ring body corresponding to the connecting end is provided with a fitting member for positioning the card, the outer peripheral surface is provided with a circumferential circumferential groove and a plurality of axial slots, and the circumferential circumferential groove is formed. The circumferential surface of the outer circumferential surface is disposed, and the circumferential circumferential clamping groove has a first radial depth, and the plurality of axial clamping grooves are spaced along the outer circumferential surface, and each axial clamping groove has a second radial depth greater than a radial depth, the axial slot has an axial inner end and an axial open end, the axial open end penetrates one of the axial sides of the screw scraper, and the axial inner end is grooved with the circumferential groove The one side groove wall has a radial flush connection relationship.

Description

Single ring split screw scraper and ball screw

The present invention relates to a scraper for a ball screw, and more particularly to an innovative single-ring split screw scraper structure type revealer.

The ball screw scraper referred to in this creation is mainly used to achieve functions such as scraping and dust removal.

Conventional ball screw scraper assembly, in order to achieve a stable state of axial positioning and circumferential direction anti-rotation, usually a additional limit member must be added to use the limit member to suppress the position of the wiper Or, in the industry, the end face of the nut is further processed to form a locking groove for preventing the rotation of the wiper to stabilize the fixed position wiper.

However, looking at the above-mentioned conventional ball screw squeegee positioning structure type, it is found in the actual use experience that it still has too many components or the manufacturing process is too complicated, resulting in high manufacturing cost and not inferior to the better industrial economy. Benefits and other shortcomings and problems.

The main purpose of this creation is to provide a single-ring split-type screw scraper. The technical problem to be solved is to develop a new type of screw which is more simplified and more practical and practical. Scraper structure type  Innovate breakthroughs for the goal.  

Based on the foregoing objects, the present invention provides a single-ring split type screw scraper, which is a combination of two-half-shaped ring bodies to form a loop-shaped pattern, and the outer peripheral surface and inner peripheral surface of the single-ring split type screw scraping device and The two axial sides, the two half-shaped ring bodies each have two sets of joints for combining, and the corresponding end joints of the two half-shaped ring bodies are provided with fitting members for positioning the cards, wherein at least one half of the ring body is The inner peripheral surface is convexly provided with a threaded wiper lip; and the outer peripheral surface of the single-ring split type screw scraper is provided with a circumferential circumferential groove and a plurality of axial slots, and the circumferential circumferential groove is along the outer circumferential surface The circumferential direction of the ring is disposed, and the circumferential circumferential groove has a first radial depth, and the plurality of axial slots are spaced along the outer circumferential surface, and each of the axial slots has a second radial depth greater than a radial depth, the axial slots are axially extended and have an axial inner end and an axially open end, such that the axially open end extends through one of the axial sides of the screw wiper, the axial direction The inner end is in a radial flush relationship with one side groove wall of the circumferential circumferential groove, thereby forming each axial slot and Between circumferential clamping grooves to form staggered relationship to each other.

By using the innovative unique pattern and technical features, the present single-ring split-type screw scraper can be combined with the symmetrical bi-shaped ring body to form a loop-shaped pattern according to the prior art, and The outer peripheral surface is provided with a structural pattern such as a circumferential circumferential groove and a plurality of axial slots, so as to achieve a more simplified structure, a large reduction in manufacturing cost, and a practical progress and a good industrial economic benefit of a stable fixed position effect.

Another main object of the present invention is to further provide a ball screw, the ball screw includes a screw, a nut and a plurality of balls, the nut has a through screw hole, and the screw is screwed to the through screw hole, a plurality of balls are disposed between the screw and the through screw hole, and the single-ring split screw wiper is mounted on one end of the through screw hole and sleeved on the outer circumference of the screw; wherein the nut is Two positioning bolts are respectively disposed at different positions of the through-hole hole wall, and each of the positioning bolts has a locking end extending radially into the through-hole, wherein the locking ends of the two positioning bolts are respectively engaged with the card The circumferential wiper groove of the ring and the axial slot corresponding thereto are disposed in the screw scraper, thereby positioning the single-ring split screw wiper.

Please refer to Figures 1 to 9 for the creation of a single-ring split screw scraper.  Preferred embodiments of the brush and its ball screw, but these embodiments are for illustrative purposes only,  Patent applications are not subject to this structure.  

The single-ring split-type screw scraper A is in a loop-like pattern (usually made of a soft plastic material), and the two-half-shaped ring bodies 10 are combined with each other to form a loop-like pattern (Note: the second The semi-circular ring bodies 10 are symmetrically combined with each other, but the shapes of the two are not completely symmetrical, and there are still differences in the details. The single-ring split type screw scraper A has an outer peripheral surface 20, an inner peripheral surface 30, and two The axial side 40 has a pair of connecting ends 11 for combining, and the corresponding connecting ends 11 of the two half-shaped annular bodies 10 are provided with a fitting member 12 for positioning the cards. The inner peripheral surface 30 of at least one of the annular ring bodies 10 is convexly provided with one of the threaded wiper lips 13; and wherein the outer peripheral surface 20 of the single-ring split type screw scraper A is provided with a circumferential circumferential groove 50 and a plurality of axial slots 60, the circumferential circumferential groove 50 is disposed along the circumferential direction of the outer circumferential surface 20, and as shown in FIG. 4, the circumferential circumferential groove 50 has a first Radial depth H1, the plurality of axial slots 60 are spaced along the outer circumferential surface 20, and each of the axial slots 60 has a second radial depth H2, the second radial The degree H2 is greater than the first radial depth H1, and each of the axial slots 60 is axially extended and has an axial inner end 61 and an axially open end 62, such that the axially open end 62 Through one of the axial sides 40, the axially inner end 61 is in a radial flush relationship with one of the side groove walls 51 of the circumferential circumferential groove 50 (as shown in FIG. 4), thereby constituting each of the axial directions. The card slot 60 and the circumferential circumferential groove 50 are arranged in a staggered relationship with each other.

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

As shown in Figs. 4 and 6, in this example, the axial slot 60 and the circumferential circumferential groove 50 are arranged in a staggered relationship with each other.

Further, the groove width of the circumferential circumferential groove 50 is the same as the groove width of each of the axial slots 60.

As shown in the second and third figures, in the present embodiment, the fitting member 12 of the assembly end 11 of the two-shaped ring body 10 is provided with two sub-terminals 11 of the two-half-shaped ring body 10. The axially opposite faces 121, 122, and one of the two axially opposite faces 121, 122, a dovetail block 123 and a dovetail groove 124, wherein the dovetail block 123 and the dovetail groove 124 are radially The fitting relationship of the insert sleeve or the disassembling; and in this type, the inner peripheral surface 30 of the half-shaped ring body 10 (or the two-half-shaped ring body 10) is provided with one of the wiping lips 13 in a thread shape.

As shown in Figs. 14 and 15, in this example, the fitting member 12B of the connecting end 11B of the two-half-shaped ring body 10B is provided with two sub-terminals 11B of the two-half-shaped ring body 10B. The radial opposite surface 125, and one of the two radial opposite surfaces 125, a dovetail block 123B and a dovetail groove 124B, wherein the dovetail block 123B and the dovetail groove 124B are axially inserted or disassembled The fitting relationship of the solution; and in this type, only the inner peripheral surface 30 of the half-shaped annular body 10B is provided with one of the wiping lips 13 in the shape of a thread. In this example, since the dovetail block 123B and the dovetail groove 124B are axially inserted or disassembled, the application is limited to the installation of the non-fitting type, and therefore only the half-shaped ring body 10B The inner peripheral surface 30 may be provided with a wiping lip 13 to enable axial insertion or disassembly between the dovetail block 123B and the dovetail groove 124B.

Further, the present invention further provides a ball screw B, which includes a screw 70, a nut 80 and a plurality of balls 90. The nut 80 has a through screw hole 81, and the screw 70 is screwed to the through hole. a screw hole 81, the plurality of balls 90 are received between the screw 70 and the through screw hole 81, and the single ring split type screw scraper A is mounted on one end of the through screw hole 81 and the set is The outer circumference of the screw 70; wherein the hole of the through hole 81 of the nut 80 is oppositely fixed with two positioning bolts 82, each of the positioning bolts 82 has a locking end extending radially into the through screw hole 81. 821, and wherein the locking end 821 of the two positioning bolts 82 are respectively fitted and fitted to the circumferential circumferential locking groove 50 of the single-ring split screw scraper A and the axial slot corresponding thereto In this case, the mounting state of the single-ring split type screw scraper A is positioned.

As shown in FIGS. 5 and 6, the ring circumferential groove 50 and the axial width of each of the axial slots 60 are the same as the outer diameter of the locking end 821 of each of the positioning bolts 82. In the proportional mode disclosed in this example, the single-ring split type screw scraper A is locked by the positioning bolt 82, and the position can be stably fixed regardless of the circumferential rotation direction or the axial direction. Further, the two positioning bolts 82 are respectively disposed on two sides of the threaded hole 81 of the nut 80 which are opposite to each other at an angle of 180 degrees, and the locking end 821 of the one of the positioning bolts 82 and the circumference of the ring The locking groove 50 is opposite to the clamping groove 50, and the locking end 821 of the other positioning bolt 82 is opposite to one of the axial slots 60. The intention of the configuration disclosed in this embodiment is mainly to increase the smoothness and efficiency of the single-ring split type screw scraper A to achieve the circumferential rotation direction and the axial installation position state.

As shown in the figures 10 to 11, when the single-ring split type screw scraper A is set, the locking end 821 of one of the positioning bolts 82 is firstly inserted into the circumferential circumferential groove 50 of the ring. Thereby, the single-ring split type screw scraper A is axially positioned and the circumferential direction is still rotatable (as indicated by the arrow L1), and then another position is set as shown in FIGS. 12 to 13 The locking end 821 of the bolt 82 is inserted in the corresponding axial slot 60 corresponding thereto, thereby further constituting the state in which the circumferential direction of the single-ring split screw scraper A is also positioned and cannot be rotated.

It can be imagined that when the single-ring split type screw scraper A is set, the locking end 821 of one of the positioning bolts 82 can be firstly inserted into the corresponding axial slot 60 corresponding thereto. Thereby, the circumferential direction of the single-ring split type screw scraper A is positioned but the axial direction is still movable, and then the locking end 821 of the other positioning bolt 82 is inserted into the circumferential card of the ring. In the groove 50, the axial direction of the single-ring split type screw scraper A is further configured to be positioned and not movable. (Note: The reverse operation of Figures 11 to 13 is only described in this paragraph, so the drawing is omitted.)

It can be seen from the description of the assembly operation example of the above disclosure that the setting position of the single-ring split type screw scraper A disclosed in the present invention is quite flexible, and the positioning in the circumferential rotation direction can be performed first, or the axial positioning can be performed first. When the positioning bolt 82 is locked, it can reach an ideal state in which the stable fixing position is no longer arbitrarily offset. On the other hand, it is necessary to additionally add a limiting member or rework the end face of the nut to form a clamping function. In the case of the limiter structure of the wiper and the like, the single-ring split screw scraper A of the present invention uses only the symmetrical bi-shaped ring body 10 to form a simple shape characteristic of a single loop-shaped type. It can achieve better industrial economic benefits with more simplified structure and greatly reduced manufacturing costs.

A‧‧‧Single ring split screw scraper  10, 10B‧‧‧ half-shaped ring  11, 11B‧‧‧ group end  12, 12B‧‧‧ fitting components  121, 122‧‧‧Axial pair of faces  123, 123B‧‧‧鸠尾块  124, 124B‧‧‧鸠尾槽  125‧‧‧ Radial facing  13‧‧‧Scratch lip  20‧‧‧ outer perimeter  30‧‧‧ inner circumference  40‧‧‧Axial side  50‧‧‧Circumferential groove  60‧‧‧Axial card slot  61‧‧‧axial inner end  62‧‧‧Axial open end  H1‧‧‧First radial depth  H2‧‧‧second radial depth  B‧‧‧Ball screw  70‧‧‧ screw  80‧‧‧ nuts  81‧‧‧through screw holes  82‧‧‧ Positioning bolt  821‧‧‧Locked end  90‧‧‧ balls  

Figure 1 is an exploded perspective view of a preferred embodiment of the present invention.  Fig. 2 is an exploded perspective view of the single-ring split screw scraper of the present invention.  Fig. 3 is an enlarged view of the fitting member of the single-ring split type screw scraper of the present invention.  Figure 4 is a first side view of the single-ring split screw scraper of the present invention.  Figure 5 is a second side view of the single-ring split screw wiper of the present invention.  Fig. 6 is a cross-sectional view taken along line 6-6 of Fig. 4.  Figure 7 is a cross-sectional view showing the partial structure of the ball screw of the present invention.  Figure 8 is a partial enlarged view of Figure 7.  Figure 9 is a perspective cross-sectional view showing the positioning bolt of the present invention not locked into the single-ring split screw scraper.  Figure 10 is a perspective cross-sectional view showing one of the positioning bolts of the present invention embedded in the circumferential circumferential groove.  Figure 11 is a plan view corresponding to the state of Figure 10.  Figure 12 is a perspective cross-sectional view showing another positioning bolt of the present invention embedded in the axial slot.  Figure 13 is a plan view corresponding to the state of Figure 10.  Fig. 14 is an exploded perspective view showing another embodiment of the fitting member of the present invention.  Figure 15 is an enlarged view of the fitting member disclosed in Figure 14.  

Claims (11)

A single-ring split-type screw scraper is a ring-shaped type in which two-half-shaped ring bodies are combined with each other, and the single-ring split-type screw scraper has an outer peripheral surface, an inner circumferential surface and a two-axial side. The two half-shaped rings each have two sets of joints for combining, and the corresponding joint ends of the two half-shaped rings are provided with fitting members positioned with each other, wherein at least one half of the inner peripheral surface of the ring body One of the threaded wiper lips is convexly disposed; and wherein the outer circumferential surface of the single-ring split type screw scraper is provided with a circumferential circumferential groove and a plurality of axial slots, and the circumferential circumferential groove is formed Provided along the circumferential direction of the outer circumferential surface, and the circumferential groove of the ring has a first radial depth, and the plurality of axial slots are spaced along the outer circumferential surface, each of the axial slots has a second radial depth, the second radial depth being greater than the first radial depth, and each of the axial slots is axially extended and having an axially inner end and an axially open end, Having the axially open end extend through one of the axial sides, the axially inner end being opposite the side wall of the circumferential groove of the ring Flush relationship to the adapter, thereby constituting each of the axial slots arranged in a staggered relation to each other between the clamping ring and the circumferential groove. The single-ring split type screw scraper according to claim 1, wherein a spacing dimension of each of the axial slots is larger than a slot width of each of the axial slots. The single-ring split-type screw scraper of claim 2, wherein the groove width of the circumferential circumferential groove is the same as the groove width of each of the axial slots. The single-ring split-type screw scraper of claim 3, wherein each of the axial slots and the circumferential circumferential groove are in a staggered relationship with each other. The single-ring split-type screw scraper according to any one of claims 1 to 4, wherein the fitting end of the two-half-shaped ring body is provided with a fitting member, which is divided into the two halves. a second axially opposite surface of the ring assembly end, and one of the two axially opposite abutment block and a dovetail groove, wherein the dovetail block and the dovetail groove are radially inserted or The disassembling relationship; and in this type, the inner peripheral surface of the half-shaped ring body or the two-half-shaped ring body is provided with the wiping lip. The single-ring split-type screw scraper according to any one of claims 1 to 4, wherein the fitting end of the two-half-shaped ring body is provided with a fitting member, which is divided into the two halves. a pair of radial end faces of the ring body set, and a tail block and a dovetail groove respectively disposed on the two radial opposite faces, wherein the dovetail block and the dovetail groove are axially inserted or The disassembling relationship; and in this type, only the inner peripheral surface of the one-half-shaped ring body is provided with the wiping lip. A ball screw, comprising a single-ring split screw scraper according to any one of claims 1 to 6, the ball screw comprising a screw, a nut and a plurality of balls, the nut having a The through-screw hole is screwed into the through-hole, the plurality of balls are received between the screw and the through-hole, and the single-ring split screw wiper is mounted on the through-hole One end and a sleeve are arranged on the outer circumference of the screw; wherein the wall of the through hole of the nut is locked with two positioning bolts, and each of the positioning bolts has a locking end extending radially into the through hole And wherein the locking ends of the two positioning bolts are respectively fitted into the circumferential circumferential locking groove provided by the screw scraper and the axial slot corresponding thereto, thereby positioning the single ring The installation state of the split screw wiper. The ball screw of claim 7, wherein the groove width of the circumferential circumferential groove is the same as the groove width of each of the axial slots. The ball screw of claim 8, wherein the circumferential groove of the ring and the groove width of each of the axial slots are the same as the outer diameter of the locking end of each of the positioning bolts, and the two The positioning bolts are respectively disposed on two sides of the threaded through hole hole wall of the nut at 180 degrees, and the locking end of the one positioning bolt is opposite to the circumferential circumferential groove of the ring, and the other is The locking end of a positioning bolt is opposite to one of the axial slots. The ball screw according to any one of claims 7 to 9, wherein when the single-ring split type screw scraper is set, the locking end of one of the positioning bolts is first inserted into the position In the circumferential circumferential groove, the screw squeegee is axially positioned and the circumferential direction is still rotatable, and then the locking end of the other locating bolt is aligned to the corresponding axis. In the card slot, the circumferential direction of the screw wiper is further configured to be positioned and not rotatable. The ball screw according to any one of claims 7 to 9, wherein when the single-ring split type screw scraper is set, the locking end of one of the positioning bolts is firstly engaged with the same Corresponding to the axial slot, thereby constituting the circumferential direction of the screw scraper but still axially movable, and then inserting the locking end of the other positioning bolt in the circumferential direction In the groove, the shaft of the screw scraper is further configured to be positioned and not movable.