Research Category: Conveyor System
Location: Paris, France
1. Support (10) for a conveyor belt (12), comprising a frame (14), at least one
roller (16) for supporting the belt (12), which roller (16) rotates in relation
to the frame (14) and comprises axially, at least at one end, a supporting
trunnion (22), the frame (14) comprising at least one foot (18) for supporting
the rotating roller (16), the foot (18) being equipped with a means (24) for
receiving the trunnion (22) for supporting the roller (16), the support (10)
further comprising a protective screen (26) which is carried by the frame (14)
and is disposed facing the roller (16), characterized in that the said receiving
means is made up of a slot (24) and in that the said protective screen (26)
comprises means (32) for confining the trunnion (22) in the slot (24).
2. Support according to claim 1, characterized in that the said confining means
comprise a stop surface (50) which is applied against the trunnion (22) and
ensures that the latter is kept resting against the bottom of the slot (24).
3. Support according to claim 2, characterized in that the stop surface (50) is
delimited on an elastically deformable component (40).
4. Support according to any of the preceding claims, characterized in that the
said protective screen (26) comprises a recess (46) for receiving the end of the
supporting trunnion (22).
5. Support according to any of the preceding claims, characterized in that the
protective screen (26) comprises means (44) of elastic commitment which are
adapted to interlock the protective screen (26) and the foot (18).
6. Support according to any of the preceding claims, characterized in that the
surface (20) of the roller (16) and one edge of the protective screen (26)
define a plane of movement of the belt (12), and in that the said slot (24)
opens in a direction which is substantially parallel to the plane of movement of
the belt (12).
7. Comprising a belt conveyer belt (12) supported by a group of media,
characterized in that the said conveyer comprises at least one support (10)
according to any of the preceding claims.
The present invention relates to a support band for a conveyor type with a
built, at least one roll for the support of the band, which roll is rotating
compared to the structure and includes axially, at least at one end, a trunnion
of medium, built with at least one leg of support roll rotary leg is fitted with
a means of receiving the trunnion roller support, support also includes a screen
protection worn by the built and ready in terms of roll, such support is
described in the document FR-A-2 655 628.
The invention also a conveyor belt containing such materials.
To carry aggregates or stones at a construction site or a site exploitation of
minerals, is known to use belt conveyors. These include a set of rollers support
behind a strip of transport. This band is closed loop and is animated by a
movement of moving on itself.
The rolls are generally required at each of their ends by support legs, the legs
are themselves a solidarity built on the ground or on a chassis support.
It is also known to have a screen protection along each roll against the face of
the roll tour upstream conveyor. This shield is maintained fixed in relation to
the structure and presents a flush on the underside of the band. This screen is
adjusted to avoid the jamming of foreign matter between the roller and the band,
and the accidental crash of a member of a worker in the area bounded between the
pinch and roll band.
In the media band known, shielding the legs are attached together, for example
Thus, the link rollers and shielding footed support is relatively complex, which
increases the cost of materials and assembly time.
The invention aims to offer support for band conveyor whose structure is simple,
reducing the time and cost of assembly.
To this end, the invention relates to a tread conveyor as described by claim 1.
Next to the particular modes of implementation, support includes one or more of
* Means of these include a stop surface applied against the trunnion and
holds it in support against the bottom of the notch;
* Stop the surface is bounded on an elastic deformation;
* Protective screen that includes a course of the receiving end of the
* The shield contains elastic engagement means adapted for the screen
solidarity and protection of the leg and
* Roller surface and a side of the shield define a plan of movement of the
band, and the slot opens significantly in a direction parallel to the plane of
movement of the band.
The invention has also aimed a conveyor belt with at least one support as
As known in itself, the conveyor includes a band 12 traveling in support of a
group of media band willing depending on the length of the conveyor.
Each supports 10 includes a built 14 to be adapted to a solidarity frame not
represented. Each also includes support in the embodiment represented, three
rolls 16 mounted rotating in the same plane in relation to the frame 14.
The reels are 16 feet by 18 support buildings. Extend 18 feet at each end of the
16 rolls have a cylindrical lateral axis 20 which form the axis of rotation of
the roller. The roll this axially at each end of support 22 protruding from the
surface 20 of cylindrical rollers. The lateral cylindrical roller is rotating
compared. These can be formed by the end of a single tree through the roller
through and through. These are adapted to be engaged and locked notched 24
allowed in each leg 18. For their detention in relation to the rotation feet 18,
the show flats whose spacing is equal to the width of the notch.
The notches 24 following the open side before 18 feet in a direction XX
extending generally parallel to progress in the 12 band staff leaning on the
surface of the roll 16 associated. The side wall before it is found to the front
of conveyor considering the direction of brown bearer of the band.
In addition, support 10 comprises, for each roll 16, a protective screen 26.
This screen contains 26 full wall extending 28 after 16 roll length partner. At
each end of the wall 28 are provided the means 30 of retainer wall 28 on the
Preferably, the display 28 includes also means 32 of containment of pins 22 in
the Associated notches.
The screen 28 is formed by example plastic.
More specifically, and as shown in Figure 3, the wall 28 is coming of substance
at each end, with wings 34 feet on fixing 12. The wall 28 is connected to one
end of each wing by a set of elastic strips 36.
Extend 34 feet perpendicular to the wall 28, i.e perpendicular to the axis of 16
The length of the wings 34 is greater than the width of 18 feet, so that the
opposite end of the liaison to the wall 28, each has a 34 foot extension 38
forming a handle to support order finger to dismantle the protective screen 26.
The means 32 of confinement associated trunnion 40 include a blade extending
parallel to the wing 34 of the side of the wing facing the roll. The blade 40 is
linked to the first end, the wall 28 and has a second free appropriate to apply
against the surface of a trunnion roller. The wing 34 and the blade 40 delineate
a groove 42 of receipt edge of the leg 18 in regard to the direction of
A projection 44 is arranged on the bulk of the arrivals wing of the 34 in
relation to the groove 42, the projection being set aside at a distance from the
bottom of the groove equal to the width of the leg 18.
The projection 44 is suitable for mechanical restraint of the wing on the leg
associated with elastic engagement of the projection 44 along the edge of the
leg 18 in regard to the direction of progress of the band.
Finally, the wing 34 presents in his face turned towards the roll, a circular
course 46 of the receiving end of the trunnion 22 of the roller.
A foot 40, as illustrated in Figure 4, presents its free end, a concave profile
50 of complementary form to trunnion 22. This surface 50 is a radial bearing
surface on the trunnion 22 to press it against the bottom of the notch 24.
Near its end, the blade 40 shows a 52 light adapted to enable an elastic
deformation of its free end and resiliently and seek the trunnion 22.
The wall 28 of the screen presents a longitudinal edge higher 28A and 28B bottom
The means 30 of retainer wall 28 are adapted to maintain it, so that the upper
edge 28A extends immediately below the band 12. The upper edge 28A and the edge
of contact between the strip and roll 16 then extend significantly following the
displacement of the band.
Similarly, the means of restraint are adapted to maintain the edge 28B slightly
leaning on the surface 20 of lateral roll to ensure a scraping of it.
The band support for the present invention is a relatively simple because the
shield ensures both the protection of roll and roll on keeping the legs support
Indeed, the elastic blade 40 provides a lock and keeping pressure trunnions 22
against the bottom of notches 24.
The pressure on trunnions light is obtained by elastic deformation of the ends
of the blades 40.
For the implementation of the screen, it is engaged from the side of the roll,
while the wings 34 are resiliently apart from one another.
After setting up the wall 28 and blades 40 in contact with trunnions, housing 46
is next to the ends of trunnions, wings 34 are released so that the projections
44 engage resiliently come back legs 12 providing a reservoir in a position to
In case of malfunction of a roller requiring removal, the screen 26 is easily
removed by releasing the wings 34 per share on the handles 38. After removal of
the screen 26, the roll can be damaged easily reached by moving trunnions
depending on the length of notches 24. The axis of notches extending parallel
with the movement of the tape, the roll can be withdrawn without the band has to
be raised. Similarly, roll repaired, or a new roll can easily be reintroduced
without the need to raise the band.