CN209818547U - Wear-resistant linear guide rail - Google Patents

Abstract

The utility model provides a stand wear and tear linear guide, including linear rail and guide rail slider, guide rail slider is equipped with the decurrent groove of sliding of opening, and guide rail slider cover is located on linear rail, and linear rail and guide rail slider set up in two roller sliding connection of both sides sliding interface through the symmetry, the left and right sides inner wall in groove of sliding all is equipped with first arc-shaped groove, and roller fixed mounting is in first arc-shaped groove, and linear rail's both sides wall all is equipped with the second arc-shaped groove that corresponds with first arc-shaped groove, and the inner wall in second arc-shaped groove is fixed and is equipped with convex wearing layer, and the internal diameter of wearing layer equals with the internal diameter in first arc-shaped groove, and when this linear guide moves, guide rail slider passes through roller and the wearing layer sliding friction on the. The utility model discloses a linear guide wear resistance is good, even if also be convenient for change after roller and wearing layer appear wearing and tearing, can avoid changing whole set of linear rail and rail block, has effectively practiced thrift the resource, the cost is reduced.

Description

Wear-resistant linear guide rail

Technical Field

The utility model belongs to the technical field of linear guide, concretely relates to stand wear and tear linear guide.

Background

The linear guide rail is also called a linear rail, a slide rail, a linear guide rail, a linear slide rail and the like, is used in the linear reciprocating motion occasion, has higher rated load than a linear bearing, can bear certain torque, and can realize high-precision linear motion under the condition of high load.

The roller linear guide rail has good bearing capacity and high rigidity, and is generally applied to the aspects of machine tools, industrial manipulators and the like. However, the existing linear guide rail generally has the defects of large abrasion of a sliding friction interface, low abrasion resistance of the linear guide rail, and frequent complete replacement of the linear rail or the guide rail slide block when the linear rail or the guide rail slide block is seriously abraded, thereby causing resource waste.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art exists, the utility model provides a stand wear and tear linear guide, this linear guide's linear rail is equipped with removable formula wearing layer, has effectively improved linear guide's wear resistance, and the roller also is convenient for change after wearing and tearing appear with roller sliding friction's wearing layer, can avoid changing whole set of linear rail and guide rail slider, has effectively practiced thrift the resource, the cost is reduced.

The utility model discloses a following technical scheme realizes:

a wear-resistant linear guide rail comprises a linear rail and a guide rail sliding block, wherein the guide rail sliding block is provided with a sliding groove with a downward opening, the guide rail sliding block is sleeved on the linear rail and is in sliding connection with the guide rail sliding block through two rollers symmetrically arranged on sliding interfaces at two sides, the inner walls at the left side and the right side of the sliding groove are respectively provided with a first arc-shaped groove for mounting the rollers, the rollers are fixedly mounted in the first arc-shaped grooves, the two side walls of the linear rail are respectively provided with a second arc-shaped groove corresponding to the first arc-shaped grooves, the inner wall of the second arc-shaped groove is fixedly provided with a circular arc-shaped wear-resistant layer, the inner diameter of the circular arc-shaped wear-resistant layer is equal to that of the first arc-shaped groove, the rollers and the inner wall of the circular arc-shaped wear-resistant layer are in sliding friction when the, even if the roller and the wear-resistant layer are worn, the roller and the wear-resistant layer are convenient to replace, the whole set of linear track and the guide rail slide block can be prevented from being replaced, resources are effectively saved, and the cost is reduced.

Further, the outer wall of the arc-shaped wear-resistant layer is provided with a plurality of limit grooves extending along the axial direction, the inner wall of the second arc-shaped groove is provided with a plurality of limit protruding edges corresponding to the limit grooves in a one-to-one manner, the wear-resistant layer and the linear track are installed in a nested manner through the limit protruding edges and the limit grooves in the one-to-one manner, and the wear-resistant layer is locked with the two ends of the linear track so as to be stable and convenient to detach and replace.

Furthermore, the limiting groove is arc-shaped.

Further, based on the both sides wall of rail block all is equipped with and link up to the sliding groove and be used for alternate multiple countersunk hole of double-screw bolt, be equipped with along radial extension and with multiple countersunk hole one-to-one's a plurality of jacks based on the outer wall of roller, the inner wall of every jack all is equipped with the internal thread, the one end of double-screw bolt passes the countersunk hole and stretches into jack and roller threaded connection, makes the roller fix on rail block, the mode of screw thread installation also is convenient for dismantle the change roller.

Furthermore, the roller comprises an inner core shaft and an outer cylinder, the outer cylinder is sleeved on the inner core shaft, the insertion hole is formed by a part penetrating through the outer cylinder and a part extending into the inner core shaft, and an internal thread is arranged on the part extending into the inner core shaft of the insertion hole so as to be convenient for connecting the stud.

Furthermore, the wear-resistant layer and the outer cylinder body are both made of silicon nitride, so that the friction coefficient is small, and the self-lubricating oil cylinder has self-lubricating property.

According to the above technical scheme, the utility model provides a pair of stand wear and tear linear guide, beneficial effect lies in: when the linear guide rail operates, the guide rail sliding block is in sliding friction with the inner wall of the arc-shaped wear-resistant layer through the roller, and the wear-resistant layer is made of wear-resistant materials with small friction coefficients, so that the linear guide rail is good in wear resistance, and even if the roller and the wear-resistant layer are worn, the roller and the wear-resistant layer are convenient to replace, the whole set of linear rail and the guide rail sliding block can be prevented from being replaced, resources are effectively saved, and the cost is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a partial sectional view taken in the direction of a-a in fig. 1.

Fig. 3 is a partial structural diagram of fig. 1 at point I.

In the drawings: 1-linear track, 11-second arc groove, 12-limiting convex edge, 2-guide rail slide block, 21-sliding groove, 22-first arc groove, 23-counter bore, 3-roller, 31-jack, 32-inner core shaft, 33-outer cylinder, 4-wear layer and 41-limiting groove.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

In the description of the present application, it is to be understood that the terms "inside", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

As shown in fig. 1 to 3, a wear-resistant linear guide rail comprises a linear rail 1 and a guide rail slider 2, the guide rail slider 2 is provided with a sliding groove 21 with a downward opening, the guide rail slider 2 is sleeved on the linear rail 1, the linear rail 1 and the guide rail slider 2 are slidably connected through two rollers 3 symmetrically arranged on sliding interfaces at two sides, inner walls at the left and right sides of the sliding groove 21 are respectively provided with a first arc-shaped groove 22 for mounting the rollers 3, two side walls of the guide rail slider 2 are respectively provided with a plurality of countersunk holes 23 penetrating to the sliding groove 21 and for inserting studs, the outer wall of the roller 3 is provided with a plurality of insertion holes 31 extending along a radial direction and corresponding to the plurality of countersunk holes 23 one by one, the inner wall of each insertion hole 31 is provided with an internal thread, one end of the stud passes through the countersunk hole 23 and extends into the insertion hole 31 to be connected with the roller 3 by the thread, so, the roller 3 is also convenient to disassemble and replace by a threaded installation mode, the two side walls of the linear track 1 are respectively provided with a second arc-shaped groove 11 corresponding to the first arc-shaped groove 22, the inner wall of the second arc-shaped groove 11 is fixedly provided with an arc-shaped wear-resistant layer 4, and the inner diameter of the arc-shaped wear-resistant layer 4 is equal to that of the first arc-shaped groove 22; the linear guide rail has good wear resistance, and can avoid replacing the whole set of linear track 1 and the guide rail slide block 2 even if the roller 3 and the wear-resistant layer 4 are convenient to replace after being worn, thereby effectively saving resources and reducing cost.

In this embodiment, the outer wall of circular arc wearing layer 4 is equipped with many spacing grooves 41 along axial extension, and spacing groove 41 is circular arc, and the inner wall of second circular arc groove 11 is equipped with many spacing burls 12 with many spacing groove 41 one-to-one, and wearing layer 4 and linear rail 1 are through many spacing burls 12 and many spacing groove 41 one-to-one nested installation, and wearing layer 4 and linear rail 1's both ends closure to ensure firm, be convenient for dismantle change wearing layer 4.

In this embodiment, the roller 3 includes an inner core shaft 32 and an outer cylinder 33, the outer cylinder 33 is sleeved on the inner core shaft 32, the insertion hole 31 is formed by a portion penetrating through the outer cylinder 33 and a portion extending into the inner core shaft 32, and the portion of the insertion hole 31 extending into the inner core shaft 32 is provided with an internal thread so as to be convenient for connecting a stud.

In this embodiment, the wear-resistant layer 4 and the outer cylinder 33 are both made of silicon nitride, and have a small friction coefficient and self-lubricating property.

The working principle of the embodiment is as follows: when the linear guide rail operates, the guide rail sliding block 2 is in sliding friction with the inner wall of the arc-shaped wear-resistant layer 4 through the roller 3, the outer cylinder 33 and the wear-resistant layer 4 of the roller 3 are made of wear-resistant material silicon nitride with small friction coefficient and self-lubricating property, the wear resistance of the linear guide rail is effectively improved, even if the outer cylinder 33 and the wear-resistant layer 4 are worn, the linear guide rail sliding block can be conveniently replaced, the whole set of linear guide rail 1 and the whole set of guide rail sliding block 2 can be prevented from being replaced, resources are effectively saved, and the cost is reduced.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims (5)

1. The utility model provides a stand wear and tear linear guide, includes linear rail (1) and guide rail slider (2), guide rail slider (2) are equipped with the decurrent groove (21) that slides of opening, and on linear rail (1) was located to guide rail slider (2) cover, and linear rail (1) and guide rail slider (2) set up in two roller (3) sliding connection of both sides sliding interface through the symmetry, its characterized in that: the inner walls of the left side and the right side of the sliding groove (21) are provided with first arc-shaped grooves (22) used for mounting the rollers (3), the rollers (3) are fixedly mounted in the first arc-shaped grooves (22), the two side walls of the linear track (1) are provided with second arc-shaped grooves (11) corresponding to the first arc-shaped grooves (22), the inner walls of the second arc-shaped grooves (11) are fixedly provided with arc-shaped wear-resistant layers (4), and the inner diameters of the arc-shaped wear-resistant layers (4) are equal to the inner diameter of the first arc-shaped grooves (22).

2. A wear-resistant linear guide rail according to claim 1, wherein: the outer wall of the circular arc-shaped wear-resistant layer (4) is provided with a plurality of limiting grooves (41) extending along the axial direction, and the inner wall of the second circular arc-shaped groove (11) is provided with a plurality of limiting protruding edges (12) corresponding to the limiting grooves (41) one to one.

3. A wear-resistant linear guide rail according to claim 1 or 2, characterized in that: based on the both sides wall of guide rail slider (2) all is equipped with and link up to a plurality of counter sink (23) of sliding groove (21) and be used for alternate bolt, is equipped with along radial extension and a plurality of jacks (31) with a plurality of counter sink (23) one-to-one based on the outer wall of roller (3), and the inner wall of every jack (31) all is equipped with the internal thread, and the one end of stud is passed counter sink (23) and is stretched into jack (31) and roller (3) threaded connection.

4. A wear-resistant linear guide as claimed in claim 3, wherein: the roller (3) comprises an inner core shaft (32) and an outer cylinder body (33), the outer cylinder body (33) is sleeved on the inner core shaft (32), the insertion hole (31) is formed by a part penetrating through the outer cylinder body (33) and a part extending into the inner core shaft (32), and internal threads are arranged on the part, extending into the inner core shaft (32), of the insertion hole (31).

5. A wear-resistant linear guide rail according to claim 4, wherein: the wear-resistant layer (4) and the outer cylinder (33) are both made of silicon nitride.