CN114046316A - Combined bearing and photovoltaic support - Google Patents

Abstract

The invention relates to a combined bearing which comprises two half shafts, wherein each half shaft comprises a half shaft body; the front side and the rear side of the half shaft body form a pair of arc edges, and the left side and the right side form a pair of cut edges; the pair of shoulder baffle rings are respectively and fixedly arranged on two arc opening sides of the half shaft body; the two half shafts are arranged in the bearing seat, the main shaft penetrates through the two half shafts, at the moment, fracture edges of the two half shafts are in mutual staggered fit, and a fracture gap is formed between the fracture edges of the two half shafts. A photovoltaic mount comprising a post; the bearing block is arranged at the upper end of the upright post; the bearing is arranged in the bearing seat; the main shaft penetrates through the bearing and forms rotating fit with the bearing seat through the bearing; the bearing adopts the combined bearing. The combined bearing is of a double-shoulder structure, has anti-falling capacity, cancels a bearing baffle matched in the prior design, effectively reduces the cost and shortens the construction period.

Description

Combined bearing and photovoltaic support

Technical Field

The invention relates to the field of photovoltaics, in particular to a combined bearing and a photovoltaic support.

Background

The existing photovoltaic power generation tracking support is generally characterized in that a main shaft is installed on an upright post, a bearing seat is arranged on the upright post, a plastic bearing is arranged in the bearing seat, and the main shaft penetrates through the plastic bearing, so that the main shaft and the bearing seat form rotating fit through the plastic bearing.

The main shaft can rotate on the stand column, the photovoltaic system is generally used outdoors, the main shaft and the plastic bearing thereof need to bear certain load, and the plastic bearing on the main shaft is easy to age and wear under the severe working environment in the field. Therefore, the plastic bearing is generally made of an engineering plastic material which has high structural strength, self-lubricating capability and aging resistance, and is designed into a two-half combination form so as to be convenient for installation.

The existing plastic bearing of the tracking support is generally of a single-shoulder half shaft structure (namely, a shoulder retaining ring 21 is formed at one end of a half shaft) as shown in fig. 1, when the plastic bearing is used, two single-shoulder half shafts 2 are combined together and wrapped on a main shaft, the shoulder retaining rings 21 of the plastic bearing are arranged on the same side, and a bearing retaining plate is generally fixed on the main shaft close to the outer side of a single shoulder and used for preventing the plastic bearing from sliding out of a bearing ring seat during working.

The existing plastic bearing has the following two defects:

defect one: the plastic bearing structure on the existing photovoltaic tracking support needs the bearing baffle plate to fix the other side of the single-shoulder half shaft to prevent the sliding out, so that the number of parts is increased, and the problems of increased transportation cost, large field installation workload, prolonged construction period and the like are caused.

And defect two: in the prior two single-shoulder half shafts of the plastic bearing, a straight edge is arranged between two fracture edges of the two single-shoulder half shafts, the direction of the straight edge is consistent with that of a main shaft, when the splicing part of the two half shafts is positioned below the main shaft and the vertical supporting force of the main shaft just acts on the splicing part of the two half shafts, the two half shafts cannot stably support the main shaft, and the bearing can be damaged.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the defects of the prior art are overcome, the combined bearing and the photovoltaic support are provided, and the problems that in the past, the installation cost is high and the bearing structure is unstable and easy to damage due to the fact that a single-shoulder half shaft bearing is adopted in the photovoltaic support are solved.

The technical scheme adopted by the invention for solving the technical problems is as follows:

in a first aspect:

there is provided a composite bearing comprising two half-shafts, said half-shafts comprising

The semi-axle body is semicircular;

the front side and the rear side of the half shaft body form a pair of arc edges, and the left side and the right side form a pair of cut edges;

the pair of shoulder retaining rings are respectively fixedly arranged on two arc opening sides of the half shaft body and are suitable for abutting against the bearing seat so as to limit the half shaft body to move forwards and backwards in the bearing seat;

the two half shafts are arranged in the bearing seat, the main shaft penetrates through the two half shafts, at the moment, fracture edges of the two half shafts are in mutual staggered fit, and a fracture gap is formed between the fracture edges of the two half shafts.

Further, the cut edge is in a step shape or an inclined shape.

Furthermore, the end edge of the shoulder retaining ring extends to the edge of the half shaft body, and when the shoulder retaining ring approaches the edge of the half shaft body, the thickness of the shoulder retaining ring is gradually reduced until the size of the half shaft in the left-right direction is smaller than that of the shaft hole of the bearing seat.

Further, the shoulder ring edge does not extend to the axle shaft body edge, so that an avoidance area is formed at the edge of the axle shaft body.

In a second aspect:

there is provided a photovoltaic support comprising

A column;

the bearing block is arranged at the upper end of the upright post;

the bearing is arranged in the bearing seat;

the main shaft penetrates through the bearing and forms rotating fit with the bearing seat through the bearing;

the bearing adopts the combined bearing.

The invention has the beneficial effects that:

according to the combined bearing and the photovoltaic bracket, the combined bearing is of a double-shoulder structure and has anti-falling capacity, a bearing baffle matched in the conventional design is omitted, the cost is effectively reduced, and the construction period is shortened.

The cross section structures at two ends of the combined bearing are in a step shape or an inclined plane shape, and after the two half shafts are matched, the steps (or inclined planes) at the cross sections are staggered with each other, so that the problem of structural discontinuity of the whole bearing at the cross sections is solved, and the performance stability of the whole plastic bearing is improved.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a schematic view of a conventional plastic bearing;

FIG. 2 is a schematic diagram of a half shaft of a combination bearing according to a first embodiment of the invention;

FIG. 4 is a schematic view of a photovoltaic rack with an embodiment of a composite bearing installed;

FIG. 5 and FIG. 6 are schematic views of a composite bearing according to a second embodiment of the present invention;

FIG. 7 and FIG. 8 are schematic half-axis views of a combination bearing according to a third embodiment of the present invention;

FIG. 9 FIG. 10 is a schematic view of a combination bearing according to a fourth embodiment of the present invention;

wherein,

2. the device comprises a half shaft 21, shoulder guard rings 22, fracture edges 23 and an avoidance area;

3. bearing block, 4, main shaft.

Detailed Description

The invention will now be further described with reference to the accompanying drawings. These drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

Example one

As shown in fig. 2 and 3, a combined bearing comprises two half-shafts 2, wherein each half-shaft 2 comprises

The semi-axle body is semicircular;

the front side and the rear side of the half shaft body form a pair of arc opening edges, and the left side and the right side form a pair of cut-off edges 22;

the pair of shoulder retaining rings 21 are respectively fixedly arranged on two arc opening sides of the half shaft body and are suitable for abutting against the bearing seat 3 so as to limit the half shaft body to move forwards and backwards in the bearing seat 3;

the two half shafts 2 are arranged in the bearing seat 3, the main shaft 4 penetrates through the two half shafts 2, at the moment, the fracture edges 22 of the two half shafts 2 are in mutual staggered fit, and a fracture gap is formed between the fracture edges 22 of the two half shafts 2.

In the present embodiment, the fracture edge 22 is stepped, as shown in fig. 2, and the two fracture edges 22 of a single half shaft 2 are asymmetric left and right.

As another embodiment of the cut edge 22, the straight line in the step shape may be a curved line.

The two half shafts 2 used in the combined bearing have the same structure, and when the two half shafts 2 are combined together, the fracture edges 22 of the two half shafts 2 can be mutually matched and matched together.

In the present embodiment, the end edge of the shoulder ring 21 extends to the edge of the axle body, and when the shoulder ring 21 approaches the edge of the axle body, the thickness of the shoulder ring 21 gradually decreases until the dimension of the axle in the left-right direction is smaller than the dimension of the axle hole of the bearing seat 3.

When the combined bearing of the embodiment is assembled and used, firstly one half shaft 2 penetrates through the shaft hole of the bearing seat 3, then the two half shafts 2 penetrate through the shaft hole of the bearing seat 3, the fracture edges 22 of the two half shafts 2 are matched in a mutually staggered mode, the main shaft 4 penetrates through the two half shafts 2, when the two half shafts 2 are attached to the main shaft 4, a fracture gap exists between the fracture edges 22 of the upper half shaft 2 and the lower half shaft 2, but the fracture edges 22 of the two half shafts 2 are always in a staggered state.

By adopting the combined bearing of the embodiment, the bearing can be effectively prevented from being separated from the bearing seat 3 by the shoulder retaining rings 21 on the front side and the rear side of the two half shafts 2, a bearing baffle matched in the prior design can be omitted, the cost is effectively reduced, and the construction period is shortened.

In the combined bearing, the two cut edges 22 of the half shafts 2 are in a step shape, and after the two half shafts 2 are combined and matched, the steps at the sections are staggered, so that the problem of structural discontinuity of the whole bearing at the sections is solved, and the performance stability of the whole plastic bearing in use is improved.

Example two

As shown in fig. 5 and 6, the combination bearing of the present embodiment is based on the combination bearing of the first embodiment.

The difference lies in that: in the combined bearing of the present embodiment, the two left and right cut edges 22 of the single half shaft 2 have a left-right symmetrical structure. As shown in fig. 5.

The shoulder ring 21 edge does not extend to the axle body edge so that an escape area 23 is formed at the edge on the axle body.

In the embodiment, the installation mode of the combined bearing is the same as that of the first embodiment, two half shafts 2 with the same structure are selected, one half shaft 2 is installed firstly, then the other half shaft 2 is installed, and fracture edges 22 of the upper half shaft 2 and the lower half shaft 2 are in mutual staggered fit.

EXAMPLE III

As shown in fig. 7 and 8, the combination bearing of the present embodiment is based on the combination bearing of the first embodiment.

The difference lies in that: in the combined bearing of the embodiment, the two fracture edges 22 on the left and right sides of the single half shaft 2 are inclined, and the fracture edges 22 on the left and right sides of each half shaft 2 are in a left-right asymmetrical structure, that is, the inclination directions of the fracture edges 22 on the left and right sides are not consistent.

The shoulder ring 21 edge does not extend to the axle body edge so that an escape area 23 is formed at the edge on the axle body.

In the embodiment, the installation mode of the combined bearing is the same as that of the first embodiment, two half shafts 2 with the same structure are selected, one half shaft 2 is installed firstly, then the other half shaft 2 is installed, and fracture edges 22 of the upper half shaft 2 and the lower half shaft 2 are in mutual staggered fit.

Example four

As shown in fig. 9 and 10, the combination bearing of the present embodiment is based on the combination bearing of the third embodiment.

The left and right two cut edges 22 of a single half-shaft 2 are inclined, with the difference that: in the combined bearing of the embodiment, the fracture edges 22 on the left and right sides of each half shaft 2 are in a bilaterally symmetrical structure, as shown in fig. 9, that is, the inclination directions of the fracture edges 22 on the left and right sides are not consistent.

The shoulder ring 21 edge does not extend to the axle body edge so that an escape area 23 is formed at the edge on the axle body.

In the embodiment, the installation mode of the combined bearing is the same as that of the first embodiment, two half shafts 2 with the same structure are selected, one half shaft 2 is installed firstly, then the other half shaft 2 is installed, and fracture edges 22 of the upper half shaft 2 and the lower half shaft 2 are in mutual staggered fit.

EXAMPLE five

As shown in FIG. 4, a photovoltaic support comprises

A column;

the bearing block 3 is arranged at the upper end of the upright post;

a bearing disposed in the bearing housing 3;

the main shaft 4 penetrates through the bearing and forms a rotating fit with the bearing seat 3 through the bearing;

the bearing adopts a combined bearing of any one of the first embodiment to the fourth embodiment.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (5)

1. A combined bearing comprises two half shafts and is characterized in that each half shaft comprises

The semi-axle body is semicircular;

the front side and the rear side of the half shaft body form a pair of arc edges, and the left side and the right side form a pair of cut edges;

the pair of shoulder retaining rings are respectively fixedly arranged on two arc opening sides of the half shaft body and are suitable for abutting against the bearing seat so as to limit the half shaft body to move forwards and backwards in the bearing seat;

the two half shafts are arranged in the bearing seat, the main shaft penetrates through the two half shafts, at the moment, fracture edges of the two half shafts are in mutual staggered fit, and a fracture gap is formed between the fracture edges of the two half shafts.

2. The combination bearing of claim 1,

the cut-off edge is in a step shape or an inclined shape.

3. A combined bearing according to claim 1 or 2,

the shoulder fender ring end limit extends to half axle body edge to, when the shoulder fender ring is close to half axle body edge, the thickness of shoulder fender ring reduces gradually, and the size of direction is less than the size in bearing frame shaft hole about the half axle until.

4. A combined bearing according to claim 1 or 2,

the shoulder ring edge does not extend to the axle shaft body edge to form an avoidance zone at the edge on the axle shaft body.

5. A photovoltaic support is characterized by comprising

A column;

the bearing block is arranged at the upper end of the upright post;

the bearing is arranged in the bearing seat;

the main shaft penetrates through the bearing and forms rotating fit with the bearing seat through the bearing;

the bearing is the combined bearing of claim 3 or 4.

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