RU169668U1 - RELAX UNDER THE RACK RACK - Google Patents

Abstract

The technical result of the utility model is to increase the universality of the thrust bearing. The technical result is obtained by the thrust bearing under the rack rack, comprising a housing with a recess under the support, a bottom and a closed wall made integrally with the bottom of a composite elastic material. The recess is made in the form of a groove inclined to the wall located between the inner and the outer walls of the thrust bearing, between the longitudinal axis of each inclined groove located on each side of the thrust bearing, and the wall of the thrust bearing, an angle is formed in at 1-3 °. The longitudinal axis of each groove is inclined inside the thrust bearing. Inside the inclined grooves are thickenings made on the walls. The depth h2 of the groove is selected from the relation h2 = (0.6-0.8) N, where N is the height of the thrust bearing. At the ends of the walls of the thrust bearing, bevels are inclined to the bottom of the thrust bearing, located in the contour of the groove. The gap between the walls of the thrust bearing is selected in the range of 0.7-0.9 mm. The thrust bearing in cross section is made in the form of a corner.

Description

The utility model relates to storage racking equipment, in particular to elements of rack racks, such as thrust bearings, designed to exclude injuries, evenly distribute the loads from the rack racks to the floor of the warehouse, and exclude damage to the ends of the racks during the operation of the racks. Another purpose of the thrust bearings is to ensure the connection of the edges of the corner post in order to give it rigidity in the most dangerous place working on collapse. A thrust bearing can also be used in the manufacture of metal furniture.

From foreign patent documentation, a U-shaped thrust bearing of a prefabricated rack structure is known, including two vertical branches and a horizontal supporting heel connected to them (WO 2016081934 A2, A47B 47/02, 2016-05-26).

Known thrust bearing in the rack, the thrust bearing is made of composite materials and has slots and a protrusion for connection with the rack (CN 104770986 A, A47B 47/00, 07/15/2015).

From advertising publications on the Internet there is a glide under the rack rack containing a housing with a groove in which are located on the inner wall of the thrust bearing thickenings, the groove is located between the inner wall and the outer wall of the thrust bearing, the walls are integral with the bottom of the thrust bearing so that it is one single the molded part, the shape of the groove is made in the form of the rack so that the thrust bearing can be fitted on the end of the rack, while the bulges located on the inner wall of the thrust bearing are located With the possibility of tight interaction with the inner surfaces of the racks of racks having different wall thicknesses, the gap between each thickening and the outer wall of the thrust bearing is selected on the basis of putting the thrust bearing on the same angular cross-sectional racks having different wall thicknesses (plastic thrust bearing. Rack rack, aalmaz66. Yandex.ru/images. Without publication date. End date of the search 05.09.2016). The design of this thrust bearing in the publication is not disclosed.

From the advertising publications on the Internet, glides are also known, each of which contains a housing with a groove in which thickenings made on the inner wall of the thrust bearing are located, a groove is located between the inner wall and the outer wall of the thrust bearing, the walls are integral with the bottom of the thrust bearing so that it is one integral molded part (Pivot point.safelcder.ru // Podstavnik plastic. Cerera-mebel.ru/ Podstavnik for the rack. Podstavnik shelf rack. Safepenza.ru ulimartik.ru//kvartetptz.ru//aktant.ru//tdzevs.ru. Yandex .ru / images. No publication dates. End date. I find 09.05.2016).

Known collapsible rack containing at least two frames interconnected by horizontal beams, fasteners made in the form of brackets with hooks, and each frame is made in the form of two vertical perforated racks with supports interconnected horizontal and diagonal braces, each of the racks is made in the form of a bent profile, and the brackets with hooks are rigidly connected to the ends of the beams, characterized in that the supports are made in the form of thrust bearings, the connection of the racks of each burning frame the on-line and diagonal braces are bolted, each of the brackets is made in the form of a channel type profile with unequal shelves mating with the wall, the perforation of each of the racks includes rectangular and round holes, hooks are made on the smaller of the bracket shelves, hooks of hooks are placed in rectangular holes horizontal beams, and horizontal and diagonal braces are made of a C-shaped profile. The shelf top is L-shaped with a profiled vertical wall and a flat horizontal bottom with an annular external protrusion located opposite the vertical wall, while the profiled rack is placed between the vertical wall and the annular external protrusion, between which a gap is formed (RU 30247 U, A47B 47/02, 06/27/2003).

From the patent documentation there is known a thrust bearing (anti-skid device) containing a bottom and an annular wall made at the same time with it (RU 2111734 C1, 05.27.1998).

Known orthopedic thrust bearing used in orthopedic technology, containing an annular wall and a bottom made integral with the wall, while inside the wall there is a recess under the support (RU 31311 U1, 08/10/2003).

Known support element shockproof thrust bearing for support, made in the form of a glass with a thin, flat, elastic bottom. The supporting surface of the element is made in the form of a crater mating with the cylinder, and the place of conjugation of the cone with the cylinder has a chamfer, the thickness of the bottom of the glass can be 2-4 times less than the diameter of the rod, and the diameter of the glass bottom is 1.5-2 times less than the length of the rod. The supporting element may be made of thermoplastic material (RU 2108586 C1, 04/10/1998).

Known collapsible rack containing at least two frames interconnected by horizontal beams, fasteners made in the form of brackets with hooks, and each frame is made in the form of two vertical perforated racks with supports interconnected horizontal and diagonal braces, each of the racks is made in the form of a bent profile, and the brackets with hooks are rigidly connected to the ends of the beams, characterized in that the supports are made in the form of thrust bearings, the connection of the racks of each burning frame the on-line and diagonal braces are bolted, each of the brackets is made in the form of a channel type profile with unequal shelves mating with the wall, the perforation of each of the racks includes rectangular and round holes, hooks are made on the smaller of the bracket shelves, hooks of hooks are placed in rectangular holes horizontal beams, and horizontal and diagonal braces are made of a C-shaped profile. The shelf top is L-shaped with a profiled vertical wall and a flat horizontal bottom with an annular external protrusion located opposite the vertical wall, while the profiled rack is placed between the vertical wall and the annular external protrusion, between which a gap is formed (RU 30247 U, A47B 47/02, 06/27/2003).

Known support for mounting the rack, made of a composite material based on unsaturated polyester resins with the addition of fiberglass yarns and including a base with mounting holes made in it, a box, the inner surface of which forms a cavity made to allow the rack to be placed in it, and stiffeners in the shape of triangles, characterized in that the box in the cross section has the shape of a rectangle, stiffeners are placed in pairs on each side of the base, and mounting holes The eggs are located on each side of the base between paired stiffeners. It is possible that the inner surface of the box forms a cavity configured to accommodate a rack of rectangular cross section or that the internal surface of the box forms a cavity configured to accommodate a rack of square cross section, or that the inner surface of the box forms a cavity configured to enable placing the rack oval cross section (RU 141661 U1, 06/10/2014 - prototype).

The thrust bearing and prototype of the same purpose presented in this description have common signs that the thrust bearings contain a housing with a recess under the support wall, the housing has a bottom and a closed wall made integrally with the housing of composite elastic material, the thrust bearing has the shape of a rectangular profile corner.

The prototype is designed for the use of a thrust bearing within a limited range of wall thicknesses of racks and does not meet the requirements of its versatility.

The technical result of the utility model presented in this description is to increase the versatility of the thrust bearing, providing fixation on racks with different wall thicknesses.

The technical result was obtained by a thrust bearing under the rack rack, comprising a housing with a recess under the support, a bottom and a closed wall made integrally with the bottom of a composite elastic material, the depression being made in the form of a groove inclined to the thrust bearing wall located between the inner and outer walls of the thrust bearing, between the longitudinal the axis of each inclined groove located on each side of the thrust bearing, and the wall of the thrust bearing formed an angle within 1-3 °, and the longitudinal axis of each groove is inclined inward Jammer.

Inside the inclined grooves are thickenings made on the walls.

The depth h2 of the groove is selected from the relation h2 = (0.6-0.8) N, where N is the height of the thrust bearing.

At the ends of the walls of the thrust bearing, bevels are inclined to the bottom of the thrust bearing, located in the contour of the groove.

The gap between the walls of the thrust bearing is selected in the range of 0.7-0.9 mm.

The thrust bearing in cross section is made in the form of a corner.

In FIG. 1 shows a thrust bearing located under the end of the corner rack of the rack, having curly walls of complex shape (first performance).

In FIG. 2 - the second version of the thrust bearing located under the end face of the corner rack of the rack with curly walls of simplified shape.

In FIG. 3 is a section AA in FIG. one.

In FIG. 4 is a section BB in FIG. 2.

In FIG. 5 - first performance of the thrust bearing, top view.

In FIG. 6 - second version of the thrust bearing, top view.

In FIG. 7 is a section BB of FIG. 5.

In FIG. 8 is a section DD in FIG. 6.

In FIG. 9 is a section GG in FIG. 5.

In FIG. 10 is a section EE in FIG. 6.

In FIG. 11 - thrust bearing with inclined walls (top view, the rack is not shown).

In FIG. 12 is a cross-sectional view of a rack and a thrust bearing with inclined walls.

The thrust bearing under the rack rack (Fig. 1) comprises a housing 1 with a figured groove 2 (Fig. 3) having a width k (Fig. 5). The groove 2 is formed by two right-angled thrust walls forming a corner contour. In the groove 2 are located on the inner part of the wall 3 elastic thickenings 4, interacting with the rack 5 of the rack (the rack is not included in the design of the thrust bearing). The groove 2 is located between the inner wall 3 and the outer wall 6 of the thrust bearing. Walls 3 and 6 are made integral with the bottom 7. It is envisaged that the walls of the thrust bearing are made separately from the bottom and are connected to it by an integral connection.

All thrust bearing elements are made of plastic by injection molding. The shape of the groove 2 is made in the shape of the strut 5 (Fig. 1) so that the thrust bearing is tightly and tightly fitted on the end of the strut 5, while the walls of the thrust bearing tightly cover the end of the strut from all its sides, and the bulges 4 located on the inner wall 3 of the thrust bearing , tightly interact with the internal surfaces of the rack rack. In this case, the rack can have any wall thickness in the range of 1.0-2.5 mm.

The gap 8 (Fig. 5, 9) between each bulge 4 and the outer wall 6 of the thrust bearing is selected based on putting the thrust bearing on the same angular cross-sectional racks having different indicated wall thicknesses of the rack racks.

The height H of the thrust bearing (Fig. 9) is selected from the condition of strength of the thrust bearing and its tight contact with the outer and inner surfaces of the rack. The thickness h1 of the bottom 7 (Fig. 7) is selected from the condition of load perception from the lower end of the rack when the rack is fully loaded without crushing the end of the rack and its bending from the acting forces. The depth h2 of the groove is selected from the condition of a firm connection of the thrust bearing to the end of the strut, and the depth h4 of the location of the chamfer 10 of the thickening 4 is selected from the condition of facilitating the alignment of the groove 2 with the end of the thrust of the thrust bearing when putting it on the end of the strut. Chamfer 10 is made on each upper end of the bulge 4, it has a width d (Fig. 10), which, together with the value s of the gap 8 (Fig. 5), forms a place of width s + d = k1 for the stand end to come in when putting the thrust bearing on the end racks (Fig. 3).

The second version of the thrust bearing (Fig. 2, 4, 6, 8, 10) has a similar shape in comparison with the form of the first execution of the thrust bearing, while the first execution of the thrust bearing differs from the second in that it has a more complex step-like shape of the groove 2 (FIG. 3) in comparison with the shape of the grooves of the second design of the thrust bearing.

In both versions of the thrust bearing, its thickenings 4 are located in the grooves 2 on the inner walls 3 of the thrust bearing, while the number of thickenings 4 of the thrust bearing is selected, at least one thickening on the inner wall 3 of the thrust bearing, and the number of thickenings is associated with the dimensions of the rack and thrust bearing.

In both versions of the thrust bearing, the gap 8 and the width of the groove 2 have variable values selected depending on the configuration of the rack and the thickness of its walls. In both versions of the thrust bearing, the thickness t of the inner wall 3 of the thrust bearing (Figs. 3, 4) in the thinnest section of the inner wall is approximately equal to the thickness of the outer wall 6 of the thrust bearing in the same section plane, which ensures equal strength of the thrust bearing.

The first and second versions of the thrust bearing relate to solving the problem of increasing its versatility by performing each thickening 4 elastic, the property of which is to compress the inner wall of the thrust bearing to the walls of the rack located in the groove of the thrust bearing. This preload due to the elastic forces of the thickenings 4 provides fixation of the thrust bearing at the end of the uprights having different wall thicknesses, as well as different geometric deviations from the basic dimensions due to technological errors.

A feature of the third version of the thrust bearing (Figs. 11 and 12) is that to ensure reliable fixation of the thrust bearing at the end of the strut, an angle of 1-3 ° is formed between the longitudinal axis 11 of each groove 2 (Fig. 1) and the plane 12 of the thrust bearing wall, optimum angle 2 °. All sections of the figured groove 2 are at this angle of inclination. After inserting the end of the rack 5 into such a groove, its walls are in contact with the surface of the groove at points A, which are the centers of the contact spots of the thrust bearing with the wall of the rack.

The third version of the thrust bearing can have elastic thickenings 4, however, with the appropriate choice of hardness of the material of the thrust bearing, thickenings 4 are not used in the design of the thrust bearing. It should be noted that the thrust bearing with inclined grooves and elastic thickenings has the greatest reliability of its fixation at the end of the rack. In the case of using inclined grooves in the thrust bearing, each of them, at any thickness of the rack wall, is in contact in the corner zone of the thrust bearing, in the middle zone of the thrust bearing and in the end zone of the thrust bearing, with its outer and inner surfaces and the outer and inner surfaces of the rack wall. At the same time, due to the elasticity of the thrust bearing material and the elasticity of the strut, the thrust bearing is fixed at the end of the strut by surprise. In essence, due to the elastic forces of the thrust bearing and the strut, the thrust bearing is fitted with an interference fit on the end of the strut and is securely fixed to it.

At the ends of the inner wall 3 and the outer wall 6 of the thrust bearing (Fig. 9) of each execution of the thrust bearing, bevels 13 are inclined to the bottom, located on the inner side of the walls and in the contour of the grooves.

The thrust bearing works as follows. Put a thrust bearing on the end of the rack by inserting into the grooves of the end of the rack, followed by a hammer strike on the bottom of the thrust bearing.

Install racks on the floor of the warehouse in an upright position (Fig. 1, 2), connect them together with beams and load the rack. When the rack is operating, the load from the rack is transferred to the bottom 7 of the thrust bearing housing 1, is evenly distributed on the bottom and evenly transferred from the bottom 7 to the floor of the warehouse.

When putting the thrust bearing on the end face of the rack, the angle of the thrust bearing is first combined with the angle of the strut, and then the end face of the strut 5 is inserted into the gap 8 (Fig. 9) between the outer wall 6 and the elastic thickenings 4 of the thrust bearing. The axis of the thrust bearing is aligned with the axis of the strut, the strut is fixed in a fixed position, and then, by striking the bottom 7 (Fig. 9), the thrust bearing is mounted on the end of the strut until the end of the strut stops in the lower surface 9 of groove 2 (groove bottom). When moving the thrust bearing from the action of impacts, its thickening 4 due to the elasticity is compressed within the specified limits and fix the thrust bearing at the end of the rack in the working position.

The thrust bearing works with inclined grooves in the same way. In this case, the interaction of the surfaces of the thrust bearing at points A (Fig. 12) with the walls of the rack is the most dense. As a result, the walls of the angle profile of the rack in its lower part are reliably connected to each other, which increases the resistance of the end of the rack to the forces of bending of the ends of the rack and their collapse.

The described thrust bearing allows its reliable fixation on different racks having different thicknesses of their walls in the range of 1.0-2.5 mm, which significantly increases its versatility.

Claims (6)

1. A thrust bearing under the rack rack, comprising a housing with a recess under the support, a bottom and a closed wall made integrally with the bottom of a composite elastic material, characterized in that the recess is made in the form of a groove inclined to the wall of the thrust bearing, located between the inner and outer walls of the thrust bearing, between the longitudinal axis of each inclined groove located on each side of the thrust bearing, and the wall of the thrust bearing, an angle of 1-3 ° is formed, the longitudinal axis of each groove tilted into the inside of the thrust bearing. 2. A thrust bearing according to claim 1, characterized in that within the inclined grooves are elastic thickenings made on the walls. 3. A thrust bearing according to claim 1, characterized in that the depth h2 of the groove is selected from the relation h2 = (0.6-0.8) H, where H is the height of the thrust bearing. 4. A thrust bearing according to claim 1, characterized in that at the ends of the walls of the thrust bearing there are chamfers inclined to the bottom of the thrust bearing located in the contour of the groove. 5. A thrust bearing according to claim 1, characterized in that the gap between the thrust bearing walls is selected within 0.7-0.9 mm. 6. A thrust bearing according to claim 1, characterized in that in cross section it is made in the form of a corner.

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