CN213999312U

CN213999312U - Frock is dismantled to ventilation blower impeller

Info

Publication number: CN213999312U
Application number: CN202023089683.2U
Authority: CN
Inventors: 张俊秀
Original assignee: Shandong Taikang Environmental Protection Technology Co ltd
Current assignee: Shandong Taikang Environmental Protection Technology Co ltd
Priority date: 2020-12-18
Filing date: 2020-12-18
Publication date: 2021-08-20
Anticipated expiration: 2030-12-18

Abstract

The utility model relates to a ventilator impeller dismounting tool, which comprises a main disc, wherein a coaxial central hole is arranged on the main disc, the internal thread of the central hole is connected with a mandril sleeve, a coaxial mandril screw hole is arranged on the mandril sleeve, and the internal thread of the mandril screw hole is connected with a threaded mandril; a plurality of positioning straight grooves are formed in the main disc, the positioning straight grooves are distributed in an equal angle relative to the central hole, and positioning bolts penetrate through the positioning straight grooves. The tool can be suitable for disassembling the impeller of the ventilator with various specifications, and is simple to operate, time-saving and labor-saving.

Description

Frock is dismantled to ventilation blower impeller

Technical Field

The utility model relates to a maintenance equipment field specifically is a frock is dismantled to ventilation blower impeller in the manufacturing of ventilation blower impeller.

Background

The ventilator is a driven fluid machine, and is widely used for ventilation, dust exhaust and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings, ventilation and draught of boilers and industrial kilns, cooling and ventilation in air conditioning equipment and household electrical equipment, drying and sorting of grains, air supply of wind tunnel and inflation and propulsion of cushion ships and the like. The impeller is the more important spare part in the ventilation blower, and the cooperation of impeller and axis of rotation adopts transition or interference fit mode to assemble usually, and reuse pull rod and lock nut are in the same place impeller and axis of rotation connection, and the impeller is often operated and is worked under the operating mode of being heated within a definite time, and the impeller is more tightly difficult to part with the axle cooperation.

The impeller of the ventilator is almost provided with a special disassembling tool, most factories in the prior art adopt a hydraulic puller to disassemble the impeller, and the impeller is often damaged in the impeller disassembling process due to the special structure of the hydraulic puller. The utility model discloses a fan impeller extracting tool which is CN211278214U after the publication, including a top rod, a bearing disc, two first pull rods and two second pull rods, the middle part of the bearing disc is provided with a threaded hole, the top rod is movably arranged in the threaded hole, the bearing disc is provided with two first through holes and two second through holes which are evenly spaced outside the threaded hole, the two first through holes and the two second through holes are respectively symmetrical relative to the center of the threaded hole, the two first pull rods are correspondingly arranged at the two first through holes, the two second pull rods are correspondingly arranged at the two second through holes, the first through holes and the second through holes are strip-shaped holes which point to the center of the threaded hole in the length direction, the width dimension of the first through holes is different from the width dimension of the second through holes, one end of the first pull rods and the second pull rods respectively passes through the corresponding first through holes and second through holes and then is fixed on the bearing disc, the other end extends along the direction far away from the bearing disc along the aperture of the corresponding first through hole and the second through hole. This technical scheme can adapt to the dismantlement of the fan wheel of different specifications, but has certain technical defect, and when the impeller centre bore that needs demolish was less than the ejector pin diameter, the ejector pin can't insert the downthehole axis of rotation that withstands of impeller centre bore, and then can't realize the dismantlement of impeller. The ejector pin can be thinned to improve the universality, but the strength and the stability of the dismounting tool can be influenced.

SUMMERY OF THE UTILITY MODEL

For overcoming the above-mentioned problem that exists among the prior art, the utility model provides a frock is dismantled to ventilation blower impeller can adapt to the dismantlement of multiple specification ventilation blower impeller, and easy operation, labour saving and time saving.

The utility model discloses a realize through following technical scheme:

a ventilator impeller dismounting tool comprises a main disc, wherein a coaxial central hole is formed in the main disc, a mandril sleeve is connected with the central hole through internal threads, a coaxial mandril screw hole is formed in the mandril sleeve, and a threaded mandril is connected with the mandril through internal threads in the mandril screw hole; a plurality of positioning straight grooves are formed in the main disc, the positioning straight grooves are distributed in an equal angle relative to the central hole, and positioning bolts penetrate through the positioning straight grooves.

Preferably, the top of the threaded ejector rod is provided with a sliding hole in the left-right direction, and a force application rod is connected in the sliding hole in a sliding manner.

Preferably, the left side and the right side of the bottom surface of the main plate are provided with V-shaped sliding grooves, and V-shaped clamping blocks are connected in the V-shaped sliding grooves in a sliding manner; and the outer side end of the V-shaped block chute is in threaded connection with a positioning screw rod.

Preferably, the inner side surface of the V-shaped clamping block is connected with a rubber anti-skid layer.

Preferably, the top of the V-shaped block sliding groove is provided with a position adjusting notch in the same direction, and one side of the position adjusting notch is connected with a scale layer.

Preferably, the lower end of the positioning bolt is in threaded connection with a nut.

The utility model has the advantages that:

1. the main disc is provided with a coaxial central hole, the central hole is internally threaded with a mandril sleeve, the mandril sleeve is provided with a coaxial mandril screw hole, the mandril screw hole is internally threaded with a threaded mandril, and the threaded mandril and the mandril sleeve can be designed into a plurality of sets according to the central hole of the impeller, so that the impeller is suitable for disassembling the central hole with a larger diameter range; a plurality of positioning straight grooves are formed in the main disc, the positioning straight grooves are distributed in an equal angle mode relative to a center hole, positioning bolts are arranged in the positioning straight grooves in a penetrating mode, during use, the lower ends of the positioning bolts are screwed into the impeller in the disassembling holes, then the lower ends of the threaded ejector rods abut against the rotating shaft through the inward rotating threaded ejector rods, the impeller is ejected out through the inward rotating threaded ejector rods by means of reverse thrust, the positioning bolts can slide in the positioning straight grooves, and therefore the impeller can be suitable for disassembling the impeller at multiple disassembling hole positions.

2. The sliding hole of left and right directions is seted up at screw ejector pin top, and sliding connection has the application of force pole in the sliding hole, and operating personnel holds the application of force pole and just can rotate screw ejector pin, no longer need prepare tools such as spanner or pliers in addition for impeller extracting tool still less is more professional.

3. The V-shaped sliding grooves are formed in the left side and the right side of the bottom surface of the main disc, the V-shaped clamping blocks are connected in the V-shaped sliding grooves in a sliding mode, the outer side ends of the V-shaped sliding grooves are connected with positioning screw rods in a threaded mode, the outer side edges of the impellers are clamped through the V-shaped clamping blocks, then the threaded ejector rods are rotated to eject the impellers reversely, and therefore the tool can be used for disassembling the impellers without disassembling holes.

4. The inner side surface of the V-shaped clamping block is connected with a rubber anti-slip layer, the V-shaped clamping block is in flexible contact with the outer side surface of the impeller, the impeller cannot be damaged after being clamped, the friction coefficient is improved through the rubber anti-slip layer, and the clamping is not easy to loosen.

5. The homodromous accent notch has been seted up at V piece spout top, and accent notch one side is connected with the scale layer, can see the position of V clamp splice in V piece spout through the accent notch, can guarantee the V clamp splice symmetry of both sides simultaneously through the scale layer, further guarantees that the screw ejector pin is coaxial with the centre bore of impeller.

6. The lower end of the positioning bolt is in threaded connection with a nut, and the nut enables the positioning bolt not to be lost due to the fact that the positioning bolt is separated from a positioning straight groove of the main disc.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is a front view of the present invention.

Fig. 2 is a schematic top view of the present invention.

Fig. 3 is a schematic bottom view of the present invention.

Fig. 4 is a schematic perspective view of the present invention.

Fig. 5 is a schematic perspective view of the present invention.

In the figure, 1-main disc, 11-central hole, 12-positioning straight groove, 13-V block sliding groove, 14-position adjusting notch, 2-ejector rod sleeve, 3-threaded ejector rod, 31-force applying rod, 4-positioning bolt, 41-nut, 5-V clamp block, 51-rubber anti-skid layer, 6-position adjusting screw rod and 7-scale layer.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be further described with reference to the accompanying drawings.

The utility model relates to a frock is dismantled to ventilation blower impeller, as shown in fig. 1-5, including master 1, the material of master 1 is 45# steel, coaxial centre bore 11 has been seted up on the master 1, centre bore 11 is the screw hole, 11 female connection in centre bore has ejector pin cover 2, coaxial ejector pin screw has been seted up on the ejector pin cover 2, ejector pin screw female connection has screw ejector pin 3, screw ejector pin 3 and ejector pin cover 2 can be according to the many sets of internal diameter design of impeller centre bore, thereby adapt to the dismantlement of the impeller of the great diameter scope centre bore, wherein many sets of ejector pin cover 2 only have the ejector pin screw to be different according to impeller centre bore size, other sizes are all the same, practice thrift design and processing cost.

A plurality of positioning straight grooves 12 are formed in the main disc 1, in the embodiment, the number of the positioning straight grooves 12 is 6, the 6 positioning straight grooves 12 are distributed at equal angles relative to the central hole 11, namely, the angle between the positioning straight grooves 12 is 60 degrees, and positioning bolts 4 penetrate through the positioning straight grooves 12. When the impeller dismounting device is used, the lower end of the positioning bolt 4 is screwed into the dismounting hole of the impeller, the main disc 1 is required to be parallel to the front side face of the impeller after the positioning bolt 4 is screwed into the dismounting hole, the positioning bolt 4 screwed into the impeller dismounting hole is required to be in an equal angle, then the threaded ejector rod 3 is rotated inwards to enable the lower end of the threaded ejector rod 3 to prop against a rotating shaft tightly matched with the impeller, the threaded ejector rod 3 is rotated inwards by using force, and the impeller is ejected out by relying on reverse thrust. The positioning bolt 4 can slide in the positioning straight groove 12, so that the impeller can be detached at various detaching hole positions.

The sliding hole of left and right directions is seted up at screw ejector pin 3 top, and sliding connection has application of force pole 31 in the sliding hole, as shown in fig. 4, operating personnel holds application of force pole 31 and just can rotate screw ejector pin 3, no longer need prepare instrument such as spanner or pliers in addition for the instrument that need prepare when the operation is dismantled to the impeller still less, more portable, only need carry this frock can.

V piece spout 13 has been seted up to the main disc 1 bottom surface left and right sides, and V piece spout 13 is the dovetail, and sliding connection has V clamp splice 5 in the V piece spout 13, and the upper end of V clamp splice 5 can be in V piece spout 13 horizontal slip, and the V piece spout 13 outside is sealed, and V piece spout 13 outside end threaded connection has positioning screw rod 6, and the medial extremity of positioning screw rod 6 can withstand the V clamp splice 5 lateral surface. When the impeller without the disassembly hole is disassembled, the structure is needed, the V-shaped clamping block 5 is used for clamping the outer circular surface of the impeller, then the position of the V-shaped clamping block 5 is finely adjusted by rotating the positioning screw 6, so that the center of the impeller is coaxial with the threaded ejector rod 3, after the coaxiality is ensured, the positioning screw 6 on the left side and the right side are screwed down, and the V-shaped clamping block 5 tightly embraces the outer circumferential surface of the impeller.

The inner side surface of the V-shaped clamping block 5 is connected with a rubber anti-slip layer 51, so that the V-shaped clamping block 5 is in flexible contact with the outer side surface of the impeller, the impeller cannot be damaged after clamping, the friction coefficient is improved through the rubber anti-slip layer 51, and the V-shaped clamping block is not easy to loosen after clamping.

The homodromous accent notch 14 is seted up at V piece spout 13 top, and accent notch 14 one side is connected with scale layer 7, as shown in fig. 4, is convenient for operating personnel to see the position of V clamp splice in V piece spout through accent notch 14, can guarantee the V clamp splice symmetry of both sides through scale layer 7 simultaneously, makes things convenient for operating personnel to finely tune accent position screw rod 6, further guarantees that the screw ejector pin is coaxial with the centre bore of impeller.

The lower end of the positioning bolt 4 is connected with a nut 41 in a threaded manner, and the nut 41 prevents the positioning bolt 4 from being lost due to being separated from the positioning straight groove 12 of the main disc 1.

The working process is as follows: when in use, the lower end of the positioning bolt 4 is screwed into the dismounting hole of the impeller, so that the bottom surface of the main disc 1 is tightly attached to the front side surface of the impeller, and the positioning bolt 4 screwed into the dismounting hole of the impeller requires equal angles; the thread ejector rod 3 is rotated inwards, so that the lower end of the thread ejector rod 3 abuts against a rotating shaft tightly matched with the impeller, the thread ejector rod 3 is rotated inwards by force, and the impeller is ejected out by means of reverse thrust.

When the impeller without the disassembly hole is disassembled, the V-shaped clamping block 5 is used for clamping the outer circular surface of the impeller, then the position of the V-shaped clamping block 5 is finely adjusted by rotating the positioning screw 6, so that the center of the impeller is coaxial with the threaded ejector rod 3, after the coaxiality is ensured, the positioning screws 6 on the left side and the right side are screwed down, and the V-shaped clamping block 5 tightly embraces the outer circumferential surface of the impeller; the thread ejector rod 3 is rotated inwards, so that the lower end of the thread ejector rod 3 abuts against a rotating shaft tightly matched with the impeller, the thread ejector rod 3 is rotated inwards by force, and the impeller is ejected out by means of reverse thrust.

In the description of the present invention, the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "vertical", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the purpose of describing the present invention but do not require that the present invention must be constructed or operated in a specific orientation, and thus, should not be construed as limiting the present invention. The terms "connected" and "connected" in the present invention are to be understood in a broad sense, and may be connected or detachably connected, for example; the terms may be directly connected or indirectly connected through intermediate components, and specific meanings of the terms may be understood as specific conditions by those skilled in the art.

The foregoing is a preferred embodiment of the present invention, and the description of the specific embodiments is only for better understanding of the idea of the present invention. To those skilled in the art, many modifications and equivalents may be made in accordance with the principles of the present invention and are deemed to fall within the scope of the invention.

Claims

1. The utility model provides a frock is dismantled to ventilation blower impeller, includes main disc (1), its characterized in that: a coaxial central hole (11) is formed in the main disc (1), a push rod sleeve (2) is connected with the central hole (11) through internal threads, a coaxial push rod screw hole is formed in the push rod sleeve (2), and a threaded push rod (3) is connected with the push rod screw hole through internal threads; a plurality of positioning straight grooves (12) are formed in the main disc (1), the positioning straight grooves (12) are distributed at equal angles relative to the central hole (11), and positioning bolts (4) penetrate through the positioning straight grooves (12).

2. The ventilator impeller dismounting tool according to claim 1, characterized in that: the top of the threaded ejector rod (3) is provided with a sliding hole in the left-right direction, and a force application rod (31) is connected in the sliding hole in a sliding manner.

3. A ventilator impeller dismounting tool according to claim 1 or 2, characterized in that: the left side and the right side of the bottom surface of the main plate (1) are provided with V-shaped sliding grooves (13), and V-shaped clamping blocks (5) are connected in the V-shaped sliding grooves (13) in a sliding manner; the outer side end of the V-shaped block sliding groove (13) is in threaded connection with a positioning screw rod (6).

4. The ventilator impeller dismounting tool according to claim 3, characterized in that: the inner side surface of the V-shaped clamping block (5) is connected with a rubber anti-skid layer (51).

5. The ventilator impeller dismounting tool according to claim 4, characterized in that: the top of the V-shaped block sliding groove (13) is provided with a position adjusting notch (14) in the same direction, and one side of the position adjusting notch (14) is connected with a scale layer (7).

6. A ventilation wheel dismantles frock according to claim 2 or 5, characterized in that: and the lower end of the positioning bolt (4) is in threaded connection with a nut (41).