CN217384587U

CN217384587U - Plugging prepressing device for volute leakage detecting machine

Info

Publication number: CN217384587U
Application number: CN202221537089.1U
Authority: CN
Inventors: 顾斌杰
Original assignee: Jiangsu Shunfeng Aluminum Industry Co ltd
Current assignee: Jiangsu Shunfeng Aluminum Industry Co ltd
Priority date: 2022-06-20
Filing date: 2022-06-20
Publication date: 2022-09-06
Anticipated expiration: 2032-06-20

Abstract

The utility model relates to a volute check out test set production technical field especially relates to a shutoff pre-compaction device for volute leak hunting machine, including base, pole setting, fixed platform, lift push rod, movable platform, shutoff subassembly, pre-compaction subassembly and rotatory tray, the base has fixed platform through the pole setting support, installs lift push rod on the fixed platform, and movable platform is installed to lift push rod's expansion end, installs shutoff subassembly and pre-compaction subassembly on the movable platform, and the rotatory tray that the spiral case was used is placed to the upper end installation of base. The utility model has the advantages of reasonable design, pre-compaction subassembly it utilizes carousel and actuating mechanism can realize rotating, can adjust the position of volute work piece in order to ensure that the shutoff subassembly carries out the shutoff smoothly, improves leak hunting efficiency; the guide block and the sealing ring are additionally arranged on the plugging head of the plugging component, so that the sealing effect of plugging can be improved.

Description

Plugging prepressing device for volute leakage detecting machine

Technical Field

The utility model relates to a volute check out test set technical field especially relates to a shutoff pre-compaction device for volute leak hunting machine.

Background

The volute is typically used to carry an impeller and the function of the volute is to convert the kinetic energy imparted by the impeller to the liquid or gas into pressure energy. The volute casing is generally used as a casing of a blower, a water pump, a booster pump and the like, the shape of the volute casing is similar to an involute, the axis of the impeller deviates to one side, the gap between the outer edge of the impeller and the closest part of the volute casing is the smallest, and the rotation of the centrifugal wheel enables wind or water to be blown out from an outlet. The water inlet or the air inlet enters from the axis of the impeller and blows out to the outlet at the edge of the volute under the action of centrifugal force. The scroll has an effect of pressurizing air or water driven by the impeller, and can increase the wind pressure or water pressure at the outlet of the scroll. The sealing performance detection needs to be carried out by using a volute leakage detecting machine after the volute is machined, and an impeller part plugging tool is often used for plugging an impeller part of the volute in the process of detecting the volute. The traditional plugging tool for the volute leakage detector does not comprise a pre-pressing assembly, so that effective pre-pressing positioning can not be carried out on the volute before plugging, and the volute is easy to deviate in the plugging process.

For this reason, an impeller portion shutoff frock for volute leak detector is disclosed in the patent specification of publication No. CN216132629U, this frock includes the workstation, the outside slip cover of the pole setting on the workstation is equipped with movable platform, the last embedding of movable platform is installed and is pushed down the push rod and around its guide tube that distributes, sliding connection has the guide bar in the guide tube, the upper end of guide bar is connected with spacing end plate jointly, the lower extreme is connected with mounting platform jointly, the expansion end that pushes down the push rod links firmly with mounting platform's upside, shutoff subassembly and the pre-compaction subassembly that distributes around it are installed to mounting platform's downside.

The plugging tool for the volute leakage detector has the defects in the use process, namely, the prepressing assembly does not have the clamping and rotating function, and the position of a volute workpiece cannot be adjusted to ensure that the plugging assembly can be plugged smoothly, so that the leakage detection efficiency is influenced; secondly, the sealing performance of the plugging component is not ideal. Therefore, the structure thereof needs to be improved optimally.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned problem that exists among the conventional art, provide a shutoff pre-compaction device for volute leak hunting machine.

In order to realize the technical purpose, the technical effect is achieved, the utility model discloses a realize through following technical scheme:

a plugging and prepressing device for a volute leak detector comprises a base, a vertical rod, a fixed platform, a lifting push rod, a movable platform, a plugging component, a prepressing component and a rotary tray, wherein the base supports the fixed platform through the vertical rod, the fixed platform is provided with the lifting push rod, the movable end of the lifting push rod is provided with the movable platform, the movable platform is provided with the plugging component and the prepressing component, and the upper end of the base is provided with the rotary tray for placing a volute; the prepressing assembly comprises a rotary disc, a connecting ring, an adjusting motor, a gear and a prepressing mechanism, wherein the connecting ring is limited in the movable platform in a rotating mode is fixed at the upper end of the rotary disc, a tooth groove is formed in the inner side of the rotary disc, the adjusting motor is fixed on the movable platform, the gear meshed with the tooth groove is fixed on an output shaft of the adjusting motor, the prepressing mechanism is installed at the lower end of the rotary disc and consists of an upper sleeve, a sliding rod, a lower sleeve and a prepressing spring, the upper sleeve and the lower sleeve are respectively sleeved at two ends of the sliding rod, and the prepressing spring is sleeved on the outer side of the sliding rod.

Further, in the plugging and pre-pressing device for the volute leakage detector, the volute comprises a volute part, an expanded pipe part and an impeller part, an annular sealing surface is arranged at the outer end of the impeller part, a plurality of positioning groove columns are arranged on the periphery of the volute part, which is positioned on the impeller part, and stepped holes which are narrow at the top and wide at the bottom are arranged in the positioning groove columns.

Furthermore, in the plugging and pre-pressing device for the volute casing leak detector, a plurality of guide telescopic joint pipes are connected between the movable platform and the fixed platform.

Further, among the above-mentioned shutoff preloading device for volute leak hunting machine, the lower casing includes the body, the outside of slide bar is equipped with the anticreep arch, and the bottom is equipped with supports the pressure head, the inboard of body be equipped with the protruding complex anticreep spout of anticreep, body bottom periphery is equipped with a plurality of jack catchs that can turn up, the upset location axle is worn to be equipped with in the inside of jack catchs, the jack catchs be equipped with support pressure head complex cambered surface, be connected with extension spring between jack catchs and the inboard lug of body bottom.

Further, among the above-mentioned shutoff preliminary installation for volute leak detector, the shutoff subassembly is including accomodating sleeve pipe, traveller, pressure head, buffer spring, shutoff head, guide block and sealing washer, it has the traveller to accomodate sleeve pipe sliding connection, the bottom mounting of traveller has the pressure head, the outside cover of traveller is equipped with buffer spring, the lower extreme of pressure head is equipped with the shutoff head, the lower extreme of shutoff head is equipped with the guide block, the periphery of guide block is narrow conical surface under wide, the periphery of shutoff head is equipped with the sealing washer.

The beneficial effects of the utility model are that:

the utility model has the advantages of reasonable design, on one hand the pre-compaction subassembly can realize rotating by utilizing the turntable and the driving mechanism, and the position of the volute workpiece can be adjusted to ensure that the plugging assembly can plug smoothly, thereby improving the leak detection efficiency; on the other hand, a guide block and a sealing ring are additionally arranged on the plugging head of the plugging component, so that the sealing effect of plugging can be improved.

Of course, it is not necessary for any product to achieve all of the above advantages simultaneously in practicing the invention.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic overall structure diagram of the present invention;

FIG. 2 is a schematic structural view of a middle volute of the present invention;

FIG. 3 is a schematic structural view of a positioning slot pillar on a middle volute of the present invention;

fig. 4 is a schematic structural view of the plugging assembly of the present invention;

fig. 5 is a schematic structural view of the pre-pressing assembly of the present invention;

fig. 6 is a schematic structural view of the middle pre-pressing assembly part of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the present embodiment is a plugging pre-pressing device for a volute leakage detecting machine, including a base 1, an upright rod 2, a fixed platform 3, a lifting push rod 4, a movable platform 5, a plugging component 7, a pre-pressing component 8, and a rotating tray 9, where the base 1 supports the fixed platform 3 through the upright rod 2, the fixed platform 3 is provided with the lifting push rod 4, and the movable end of the lifting push rod 4 is provided with the movable platform 5. A plurality of guiding telescopic joint pipes 6 are connected between the movable platform 5 and the fixed platform 3, a plugging component 7 and a pre-pressing component 8 are installed on the movable platform 5, and a rotary tray 9 for placing a volute 10 is installed at the upper end of the base 1.

In this embodiment, the scroll 10 includes a scroll part 101, an expanded pipe part 102, and an impeller part 103, an outer end of the impeller part 103 is provided with an annular sealing surface 104, the scroll part 101 is provided with a plurality of positioning groove pillars 105 located on the periphery of the impeller part 103, and the positioning groove pillars 105 are provided with stepped holes 106 having a narrow top and a wide bottom.

In this embodiment, the blocking assembly 7 includes a receiving sleeve 701, a sliding column 702, a pressure head 703, a buffer spring 704, a blocking head 705, a guide block 706 and a sealing ring 707, the receiving sleeve 701 is slidably connected with the sliding column 702, the pressure head 703 is fixed at the bottom end of the sliding column 702, and the buffer spring 704 is sleeved outside the sliding column 702. The lower end of the pressure head 703 is provided with a blocking head 705, the lower end of the blocking head 705 is provided with a guide block 706, the periphery of the guide block 706 is a conical surface with a wide upper part and a narrow lower part, and the periphery of the blocking head 705 is provided with a sealing ring 707.

In this embodiment, the pre-pressing assembly 8 includes a rotary plate 801, a connection ring 802, an adjusting motor 803, a gear 804 and a pre-pressing mechanism, the connection ring 802 rotatably limited in the movable platform 5 is fixed at the upper end of the rotary plate 801, and the cross section of the connection ring 802 is a T-shaped structure. The inner side of the turntable 801 is provided with a tooth groove, the adjusting motor 803 is fixed on the movable platform, and the output shaft of the adjusting motor 803 is fixed with a gear 804 engaged with the tooth groove. If the prepressing mechanisms are installed at the lower end of the turntable 801, the number and the positions of the prepressing mechanisms correspond to the number and the positions of the positioning groove columns 105 one by one. The pre-pressing mechanism is composed of an upper sleeve 805, a sliding rod 806, a lower sleeve 807 and a pre-pressing spring 808, wherein the upper sleeve 805 and the lower sleeve 807 are respectively sleeved at two ends of the sliding rod 806, and the pre-pressing spring 808 is sleeved at the outer side of the sliding rod 806.

In this embodiment, the lower sleeve 807 includes a tube 8071, an anti-separation protrusion 8061 is disposed on an outer side of the sliding rod 806, a pressing head 8062 is disposed at a bottom end of the lower sleeve, an anti-separation chute 8072 matched with the anti-separation protrusion 8061 is disposed on an inner side of the tube 8071, a plurality of jaws 8073 capable of being turned outwards are disposed on an outer periphery of a bottom of the tube 8071, a turning positioning shaft penetrates through the jaws 8073, the jaws 8073 are provided with an arc surface matched with the pressing head 8062, and a tension spring 8075 is connected between the jaws 8073 and a bump 8074 on an inner side of a bottom end of the tube 8071. After the lower sleeve 807 is clamped into the stepped hole 106 of the positioning groove column 105, the claw 8073 is turned outwards by being pressed, so that the lower sleeve 807 is tightly connected with the positioning groove column 105.

One specific application of this embodiment is: the structure of the embodiment is reasonable in design, on one hand, the prepressing assembly 8 can rotate by utilizing a turntable and a driving mechanism, and the position of a volute 10 workpiece can be adjusted to ensure that the plugging assembly 7 can be plugged smoothly, so that the leak detection efficiency is improved; on the other hand, the sealing effect of the plugging can be improved by additionally arranging the guide block 706 and the sealing ring 707 on the plugging head 705 of the plugging component 7.

The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. The preferred embodiments are not exhaustive and do not limit the invention to the precise embodiments. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical applications, thereby enabling others skilled in the art to best understand the invention and its practical application. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. The utility model provides a shutoff pre-compaction device for volute leak hunting machine which characterized in that: the spiral casing pressing device comprises a base, a vertical rod, a fixed platform, a lifting push rod, a movable platform, a plugging component, a pre-pressing component and a rotary tray, wherein the base supports the fixed platform through the vertical rod, the lifting push rod is installed on the fixed platform, the movable end of the lifting push rod is provided with the movable platform, the plugging component and the pre-pressing component are installed on the movable platform, and the rotary tray for placing a spiral casing is installed at the upper end of the base; the prepressing assembly comprises a rotary disc, a connecting ring, an adjusting motor, a gear and a prepressing mechanism, wherein the connecting ring is limited in the movable platform in a rotating mode is fixed at the upper end of the rotary disc, a tooth groove is formed in the inner side of the rotary disc, the adjusting motor is fixed on the movable platform, the gear meshed with the tooth groove is fixed on an output shaft of the adjusting motor, the prepressing mechanism is installed at the lower end of the rotary disc and consists of an upper sleeve, a sliding rod, a lower sleeve and a prepressing spring, the upper sleeve and the lower sleeve are respectively sleeved at two ends of the sliding rod, and the prepressing spring is sleeved on the outer side of the sliding rod.

2. The plugging prepressing device for the volute leakage detecting machine as claimed in claim 1, wherein: the volute comprises a volute part, an expansion pipe part and an impeller part, wherein an annular sealing surface is arranged at the outer end of the impeller part, a plurality of positioning groove columns are arranged on the periphery of the volute part, which is positioned on the impeller part, and step holes which are narrow at the top and wide at the bottom are arranged in the positioning groove columns.

3. The plugging prepressing device for the volute leakage detecting machine as claimed in claim 2, wherein: and a plurality of guide telescopic joint pipes are connected between the movable platform and the fixed platform.

4. The plugging prepressing device for the volute leakage detecting machine as claimed in claim 1, wherein: the lower sleeve comprises a pipe body, the outer side of the sliding rod is provided with an anti-falling bulge, the bottom end of the sliding rod is provided with a pressure resisting head, the inner side of the pipe body is provided with an anti-falling chute matched with the anti-falling bulge, the periphery of the bottom of the pipe body is provided with a plurality of clamping jaws capable of turning outwards, a turning positioning shaft is arranged in each clamping jaw in a penetrating mode, each clamping jaw is provided with a cambered surface matched with the pressure resisting head, and a stretching spring is connected between each clamping jaw and a lug on the inner side of the bottom end of the pipe body.

5. The plugging prepressing device for the volute leakage detecting machine as claimed in claim 1, wherein: the plugging component comprises a storage sleeve, a sliding column, a pressure head, a buffer spring, a plugging head, a guide block and a sealing ring, wherein the storage sleeve is connected with the sliding column in a sliding manner, the bottom end of the sliding column is fixedly provided with the pressure head, the outer side of the sliding column is sleeved with the buffer spring, the lower end of the pressure head is provided with the plugging head, the lower end of the plugging head is provided with the guide block, the periphery of the guide block is a conical surface which is wide at the upper part and narrow at the lower part, and the periphery of the plugging head is provided with the sealing ring.