FR2692338A1 - Hydraulic component mounting device such as a pump body and support for such a device. - Google Patents

Abstract

The pump body is mounted by tight fitting at least one inlet connection and at least one outlet connection of the pump body on the corresponding inlet and outlet pipe fittings fixed on a mounting plate. angle mounting. The mounting device comprises a detachable support 10 in the general shape of a square or L with two branches 11, 12, the first 11 of which rests at its distal end on the end of the inlet pipe 4 and at its other end on the plate 3, after introduction of at least one hook 14 through a passage 19 of the plate and whose second branch 12 is fixed on the lower part 22 of the pump body 1, by at least one threaded part 24 constituting additional fixation. Application to the assembly of a pump body by multiplying the damping points and ensuring great ease of access.

Description

DEVICE FOR MOUNTING HYDRAULIC COMPONENT

SUCH AS A PUMP BODY AND SUPPORT

FOR SUCH A DEVICE

  The present invention relates to a device for mounting a hydraulic component such as a pump body by sealed engagement of at least one suction connection and at least one outlet connection of said component, arranged substantially at an angle straight relative to each other on corresponding inlet and outlet pipe ends, fixed in position and by complementary locking of the pump body on a mounting plate.

  also the detachable supports in the general form of

  angle or L with two branches, for mounting a body of

pump on a mounting plate.

  Common hydraulic components such as the small single-phase asynchronous electric motor pump units used in individual gas central heating boilers, are connected to a liquid suction pipe and a pump discharge pipe by simply interlocking. , the pump body being then fixed and held in position by one or two screws screwed into a threaded bore formed on the pump body and bearing on a mounting plate Such attachment generally gives satisfaction but the connection of the pump body the platinum which is generally traversed by the suction pipe and which usually has a small thickness, is not always sufficiently damped In

  Indeed, the depreciation of the fastening is carried out inter-

  installing between this plate and mounting studs protruding from the pump body, elastomer washers which are traversed by a fixing screw of the pump body

thus mounted cantilever.

  This method of fixation also complicates the

  The pump body, which must have easy shapes to be produced by molding or forging and requiring only a few subsequent machining operations. Another disadvantage of this simplified method of fixing the pump bodies lies in the fact that

  accessibility for mounting the fixing screw (s)

  is generally poor, as there is usually no easy access to the face of the mounting plate that

is opposed to the pump.

  The need has therefore been expressed to provide a simple input-output hydraulic component mounting device such as a pump body, in which the fluid connection is conventionally made by interlocking the fittings of the pump body on suction and discharge pipe ends and o the mechanical connection between the pump casing and the fixing and locking plate is achieved by means of easily accessible means mounted to the part

  lower generally exposed, pump body.

  For this purpose, according to the invention, the device for

  of a hydraulic component, for example a body of

  pump comprises a detachable support in the general form of

  or two-limb L, the first of which is supported at its distal end on the inlet pipe end and, at its other end connected to the second branch, on

  platinum, after introduction of at least one hook of the

  port through a platinum passage and support this cro-

  chet by its edge on the face of this platinum which is op-

  placed on the body of component, and the second branch is fixed on the lower part of the body by at least one threaded piece passing through this second branch and constituting

  said complementary fixation blocking the pump body.

  The threaded piece is advantageously the plug of a threaded bleed bore of the component body, which simultaneously saves the realization of a threaded bore

  on the component body and the closure cap of the

  Purging bleeding in the lower part of the body The second

  support arm has a hole or bore which is

  poured through a purge nipple of the component body, provided in the lower portion thereof in use, and the purge nipple is provided with a threaded bleed bore opening into the interior of the body and on which is screwed a closure cap which constitutes said threaded part for fixing

  complementary to the component body.

  According to another embodiment of the invention, an annular elastomer sleeve is interposed between the outer wall of the purge nipple and the inner wall of the hole or bore and is pressed axially by the head of the closure cap towards the body, in order to block the second branch on the axial compression purge nipple

  and subsequent radial expansion of said sleeve.

  According to yet another embodiment of the invention,

  the component body is supported on the first branch of the support via at least a portion of the

  projecting nipple or protruding nipple protruding from the sup-

  frontal face of the body surrounding the inlet connection

  tremity of the protruding part or the support pin is applied

  on the first branch by means of a layer, or plate or washer, of a vibration-damping material The end of the projecting portion or the support pin is preferably coated by gluing, bonding

  or other attachment of a washer or support pad to the first

  first branch of the support, in a damping material

vibrations such as an elastomer.

  According to another embodiment of the invention, the support is made of sheet metal and its first branch comprises two separate hooks each delimited on a distinct side of the first branch by a slot or separation cutout

  from the plate of said support and the two hooks are

  by folding the sheet portion separated from said support.

  The corner or the angle of the L of the plate is "broken" by a substantially flat face on which are formed said two separation cutouts, the curvature of the hooks starting tangentially to this substantially flat face to come through the passage of the plate of way substantially perpendicular to the surface of this platinum and ending

  by an end portion substantially parallel to the sur-

  face of the plate when the support is mounted on the latter. The detachable support in the form of a bracket or L, for mounting a hydraulic component body such as a pump body on a mounting plate, comprises firstly a first branch provided with at least one hook capable of engaging in a hole of said plate, said first leg being capable, after engagement of the hook in the hole, to come into abutment by its distal end on an inlet pipe end, and secondly , a second branch equipped with a passage hole of a

  means of attachment to the lower part of the body of

  The support is preferably made of sheet metal and has a face which "breaks" the angle of the square or L-and on each of the lateral sides of which said hook is formed by cutting a separation slot and

  folding of the separate sheet metal part.

  Other purposes, advantages and features appear

  reading the description of various modes of

  1 of the invention, in a non-limiting view and with reference to the accompanying drawing, in which: FIG. 1 is a fragmentary view with the connections in axial section, the first phase of assembly according to the invention of a motor-pump unit; low power by nesting female body fittings

  pump respectively axial suction

  and radial discharge, on corresponding tubular ends arranged at right angles to each other and which pass through an angle mounting plate; FIG. 2 represents a fragmentary view, with the connections and the complementary fastening

  (exploded view) in axial section, the arrangement

  Mounting device according to the invention of a motor pump body on the mounting plate; FIG. 3 shows the removable support, for the mounting device according to the invention, in the mounting position according to the invention, on the support plate represented in fragmentary view, suction and discharge ends;

  FIG. 4 represents in perspective before a

laughing at the support of Figure 3.

  With reference to FIG. 1, it can be seen that the pump body 1 of a motor-pump unit 2 must be mounted on an angled plate 3 carrying an inlet or liquid inlet end-piece 4. pump to the suction connector 5 of the pump 1 and a nozzle 6 outlet or discharge pumped liquid. For mounting on the plate 3, the pump body 1 which constitutes the motor pump unit 2 with the pump motor

  the, is presented in position so that its refueling

  7, by extending the displacement of the pump body 1 according to the arrow F, comes to engage, thanks to its chamfer

  9, sealingly on the O-ring 8 of the

  end 6 held in a groove of the tip.

  At this stage of the assembly, one comes then to engage on the

  platinum 3 a detachable support 10, in the general form of e-

  or L, that is to say, two branches and which is

  shown in Figure 4 The support 10 which is gener-

  made of sheet metal, has a first branch 11

  substantially flat and which relies in service, as

  2, on the substantially flat face of the vertical wall 3a of the plate 3 and a second branch 12

  which is arranged, in use, in a substantially

  dicular to the vertical wall 3 a platinum 3

  Distal mite 13 of the branch 11 is also supported, in use, on the inlet end 4, this support can be achieved by means of a recess or notch 13 has an arc, depending on the mode realization of the support

shown in Figure 4.

  To achieve the attachment of the support 10 on the plate 3, the support 10 has laterally two hooks 14 and 15 each formed on a separate side of a flat face 16 which "break" the angle of the square or the L The hooks 14, 15 are separated from the sheet of the face 16 by a separation cutout 17 Each of the hooks 14 or 15 is folded in a direction which extends, in use, perpendicularly to the plate 3 and ends, at distal end, by a hooking portion 18 which is disposed in use substantially parallel to the rear flat surface of the wall 3a of the plate 3 It is possible to introduce each of the

  fastening parts 18 through a hole or cutout 19 meshes

  swam in the plate 3, in the position shown in Figure 2, the distal end 13 of the first branch 11

  engaging on the input chamfer 4a of the nozzle 4.

  By manually rotating the second branch 12,

  also by grasping a slightly recessed end tab

  curved 12a of this branch, it forces the distal end 13 (or 13a according to the variant of Figure 4) forcibly engage under the rigid end 4 by resiliently bombarding the first branch 11, in the direction of pump body 1 The hooks 14 and 15 are then deployed through the holes 19 to occupy the position shown in Figure 2 o the attachment portion 18 is trapped behind the plate 3 The first leg 11 of the support 10 is thus " brace elastically "between its distal end 13 bears against the endpiece 4 and the underside 20 of the hooks 14 and 15 which is supported on the bottom wall 19a of the hole 19 (see FIG.

  figure 3 where it is noted that the vertical side is

  wedge 3 has platinum 3 holes or cutouts 19 of circular shape) It is of course possible to provide

  cutouts 19 of rectangular or square general shape corre-

  laying in the general rectangular shape of the hooks 14 or

  We can reduce or eliminate the face 16 which "breaks" the

  This face 16 eliminates the bending at right angles of the sheet while facilitating the forming of the hooks 14 and 15, the arc then tangentially to the surface

of the face 16.

  The support 10 is generally made of sheet metal

  thin so that the branches have a good elasticity

  Bending tilt (cantilever) To better resist corrosion, the support 10 may be made of stainless steel, more difficult to shape According to another embodiment, the support 10 is for example

  made of molded plastic which has an elasticity

  equivalent for larger wall thicknesses

aunts.

  The second branch 12 of the support plate 10 pre-

  preferably, substantially at its center, a hole 21 generally of circular shape and of larger section than that of a pin 22 formed at the lower part of the pump body The stud 22 may have a square or rectangular section, in which case the hole 21 then has a corresponding shape but larger dimensions The stud 22 has a threaded bore 23 passing through the pump body 1 to allow, at the pump stop, the purge of the liquid contained in the pump body L ' threaded bore 23 is normally sealed by a plug of

  threaded purge 24 which cooperates with an annular seal

  25 when screwed fully into the threaded bore 23.

  The second branch 12 is normally locked in position after engagement of the stud 22 in the hole 21, by screwing in.

  position of the threaded plug 24 which holds, by its wide neck,

  lerette 24 a, the second branch 12 prisoner of the nipple 22 and vice versa, which has the effect of maintaining the body

  pump 1 in position relative to the plate 3.

  In the mounting mode shown in FIG. 2, the initial operations of positioning and placing the pump body 1 and the pump unit 2 consist in: engaging the discharge connection 7 of the pump body

  on the tip 6 of discharge and evacuation of the

  quide pumped, according to the process shown in Figure 1, moving the pump body according to the arrow F; to set up the support 10 on the plate 3, as explained above; then engaging the suction coupling 5 of the pump body 1 on the nozzle 4 for supplying liquid to be pumped,

  to the position shown in Figure 2.

  It can be seen in FIGS. 1 and 2 that one or more support nipples or projections 26 are formed on the front surface 1b surrounding the suction connection 5. These nipples 26 come into abutment, preferably via of a layer or elastomer damping plate or washer 27, on the surface of the first leg 11, which is generally convex towards the pump body, because of its bracing between the bottom wall 19 has holes 19 and the suction nozzle 4 or nipple (s) 26 then push the first leg 11 in contact with the surface of the vertical leg 3 of the plate 3, at least partially removing the possible bulge of this branch 11 to the pump body 1 During assembly of the connections 5 and 7 of the pump body on the ends 4 and 6, the second branch 12 is pushed down either by a manual action or by the pin 22, so to allow the passage of the purge nipple 22 during the approach of the suction connection 5 towards the nozzle 4 When the connectors 5 and 7 are in position on their corresponding end pieces, and as represented in FIG. 2, the hole 21 formed in the branch 12 is arranged opposite

  of the purge nipple 22 that comes through it as soon as one relaxes

  push on the branch 12 downwards from Figure 2.

  In the embodiment shown in FIG. 2, an elastomeric sleeve 28, made here in the form of a sleeve with a support flange 29, is engaged in the free annular gap 30 existing between the inside wall of the hole. 21 and the outer surface of the bleed nipple 22 The sleeve 28, when in position, is stopped on the periphery of the hole 21 by its support flange 29 and is tightened by its inner bore surface 31 the outer surface At the mounting of the threaded bleed plug 24, which may then be free of the annular sealing gasket, it can be seen that the elastomer sleeve 28 deforms in all the free directions in order to imprison the branch 12 by expanding. by its narrow portion beyond the hole 21 The sleeve 28, together with its damped connection function between the pin 22 and the branch 12, also ensures the sealing function of the bleed plug 24, the

  flange 24a sealingly abutting on the frontier end

  tale 32 of the sleeve 28 while the axial clamping firmly and tightly applies the inner wall of its

  bore 31 on the outside surface of the stud 22.

  As seen in Figure 2, after mounting on the

  plate 3 of the pump body 1, the latter is connected to a sup-

  wearing in four zones, each time via an elastomer layer capable of quenching the vibrations generated by the pump rotor rotating at high angular velocity (generally of the order of 2000 to 2500 rpm) suction 5 and discharge 7 surround the corresponding ends 4 and 6 of the plate 3 with the interposition of at least one O-ring seal 8 or the support pin (s) 26 flatten the second branch 11 on the vertical face 3a of the plate 3, each via an elastomer washer 27 The bleed nipple 22 of the pump body 1 is connected relatively elastically to the plate 3 by the second leg 12 of the support 10, but through the elastomeric sleeve 28 In the mounting position, there is thus virtually no direct metal contact between the motor pump unit 2 and the others

  elements of the pumping system, which ensures a good

  optimum vibration of the vibrations that may arise during the life of the pump, for example following the appearance of play in the bearings of the pump motor This favorable technical situation is combined with a limited installation cost thanks to the two-way use of the pump bleed elements and high accessibility of mounting relative to known mounting systems with locking screws

  of the front face 1b of the pump body 1 on the green wall

Ticale 3 has platinum 3.

  According to a provision adapted to facilitate the production of pump bodies with high mechanical strength, by forging, or the support pins 26 may be replaced by an enlargement of the suction connection 5 The plate 3 can carry the tips 4 and 6 liquid inlet and outlet, as shown in Figures 1 and 2, or the plate can simply be traversed by these tips which are also fixed on a mounting device such as a boiler on which is also fixed platinum 3 It should also be understood that the plate 3 may have only its substantially plane vertical wall 3a which alone cooperates with the

support 10.

  Of course, the present invention is not limited to the embodiments described and shown but it is capable of numerous variants accessible to the man of

  art without departing from the spirit of the invention.

he

Claims (11)

  1. Device for mounting a hydraulic component, for example a pump body by sealed engagement of at least one inlet connection and at least one outlet connection of said component, arranged substantially at right angles to each other. to the other on corresponding inlet and outlet pipe ends fixed in position and by complementary fastening of said body to a plate of   assembly, characterized in that it comprises a support   chable (10), in the general shape of square or L-two   branches (11, 12), the first of which (11) is supported at its   distal mite (13, 13 a) on the inlet pipe end (4) and, at its other end connected to the second arm, on the plate (3), after introduction of at least one hook (14, 15) of the support through a passage (19) of the plate (3) and support of this hook by its flange (18) on the face of this plate which is opposite to the body (1) of component and   what the second branch (12) is fixed on the lower part   upper (22) of the body (1) by at least one threaded piece (24)   crossing that second branch and constituting   additional blocking of the body (1).   2. Mounting device according to claim 1, characterized in that the threaded piece (24) constitutes the   cap of a threaded bore (23) for purging the component body health (1).   3. Mounting device according to claim 1 or 2, characterized in that the second leg (12) of the support (10) comprises a hole or bore (21) which is traversed by a purge nipple (22) of the body of component (1) provided at the lower part thereof in use and in that the bleed nipple (22) is provided with a threaded bleed bore (23) opening into the body (1) and on which is screwed a closure plug (24) which constitutes said piece   threaded for complementary attachment of said body (1).   4 mounting device according to claim 3, characterized in that an annular sleeve (28) is interposed between the outer wall of the purge nipple (22) and the inner wall of said hole or bore (21) and is pressed axially by the head (24 a) of the closure cap (24) towards the body (1), so as to block the second leg (12) on the bleed nipple (22) by compression   axial and subsequent radial expansion of said sleeve (28).   5 Mounting device according to any one of   Claims 1 to 4, characterized in that the component body   sant (1) is supported on the first leg (11) of the support (10) via at least one projecting portion or a bearing pin (26) provided projecting on the front face   (Ib) of the body (1) surrounding the inlet fitting (5).   6. Mounting device according to claim 5, characterized in that the end of the projecting portion or the support pin (26) is applied to the first branch (11) via a layer or plate or washer   (27) of vibration damping material.   7. Mounting device according to claim 6, characterized in that the end of the protruding portion or the support pin (26) is coated by gluing or adhesion or other attachment of a washer or stud (27) d support   first branch (11) of the support (10), made of an amorphous material   vibration weaver such as an elastomer.   8. Mounting device according to any one of   Claims 1 to 7, characterized in that the support (10)   is made of sheet metal and its first branch (11) comprises two separate hooks (14, 15) each delimited on a distinct side of the first branch by a slot or cutout (17) separating from the sheet metal of said support and in that that the two hooks (14, 15) are made by folding the part   sheet metal separated laterally from said support (10).   9 mounting device according to claim 8, characterized in that the corner or the angle of the L of the support (10) sheet metal is "broken" by a face (16) substantially flat on   which two said separating cutouts (17) are formed   the curvature of the tangential tangential hooks (14, 15)   this substantially flat face (16) to   pour the passage (19) of the plate (3) substantially   perpendicular to the surface of this plate and terminating in an end portion (18) substantially parallel to the surface of the plate when the support (10) is mounted on the latter.   10. A generally angled or L-shaped detachable support for mounting a hydraulic component body such as a pump body to a platen for   characterized in that it comprises on the one hand a first   first leg (11) provided with at least one hook (14, 15)   able to engage in a hole (19) of said plate (3), said first leg (11) being capable, after engagement of said hook (14, 15) in said hole (19), to bear at its end distal (13, 13 a) on an inlet pipe end (4) and, secondly, a second leg (12) provided with a through hole (21) of a fixing means on the part lower body (1) of hydraulic component.   11. A detachable support according to claim 10, characterized   characterized in that it is made of sheet metal and has a face (16) which "breaks" the angle of the bracket or L and on each of the lateral sides of which said hook (14, 15) is formed by cutting a separation slot (17) and folding of the separate sheet metal part.