A radial flow fan dust removal tool

Abstract

The invention discloses a radial flow fan dust removal tool, comprising a frame, a wheel and a radial flow fan, a first bearing seat and a second bearing seat are respectively arranged at both ends of the frame, a mandrel is arranged between the first bearing seat and the second bearing seat, a hand wheel is fixedly connected to one end of the mandrel close to the first bearing seat, a knob plunger is arranged on the first bearing seat, a first positioning hole matched with the knob plunger is arranged on the hand wheel, a swivel bracket is fixedly connected to the mandrel, a plurality of radial flow fan mounting parts are evenly arranged on the swivel bracket, the radial flow fan mounting part comprises a plurality of U-shaped blocks, a positioning block is arranged on the radial flow fan, the positioning block is located in a U-shaped groove of the U-shaped block, a second positioning hole is arranged on the positioning block and the U-shaped block, the two second positioning holes are located on the same straight line, and positioning pins are arranged in the two positioning holes. The invention can clean and maintain multiple radial flow fans without dead angles, thereby improving work efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal for radial flow fans, and in particular to a dust removal tooling for radial flow fans. Background Art

[0002] The radial flow fans used in subway trains are mostly double-head motor impeller-type air supply fans or single-head motor impeller-type air supply fans. To ensure the ventilation and cleanliness of subway train passenger compartments, the fans need to be cleaned and maintained when the subway trains are repaired for 400,000, 750,000, and 1.15 million kilometers. Blowing and dust removal is the best cleaning mode for radial flow fans in trains. It reduces both resource consumption and fan losses.

[0003] As an important component of the subway vehicle ventilation system, the radial flow fan works continuously and uninterruptedly during vehicle operation to ensure the ventilation volume in the passenger compartment. When the vehicle operating mileage reaches 400,000, 750,000 and 1.15 million kilometers, the fan needs to be inspected and repaired in accordance with the maintenance manual and vehicle maintenance process requirements, and the overall components of the fan need to be cleaned and the wearing parts need to be replaced. In the initial stage of the air blowing and dust removal maintenance operation, due to the environmental restrictions of the work site and the strict maintenance process requirements, only a single fan can be used for air blowing and dust removal operations, resulting in the need for frequent handling, which not only increases the consumption of man-hours, but also wastes a lot of manpower and material resources.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of the above technical problems in the related art, the present invention proposes a radial flow fan dust removal tooling, which can solve the above problems.

[0006] To achieve the above technical objectives, the technical solution of the present invention is implemented as follows:

[0007] A radial flow fan dust removal tooling, comprising a frame, wheels and a radial flow fan, wherein a first bearing seat and a second bearing seat are respectively provided at both ends of the frame, a core shaft is provided between the first bearing seat and the second bearing seat, a hand wheel is fixedly connected to the end of the core shaft close to the first bearing seat, a knob plunger is provided on the first bearing seat, a first positioning hole matching the knob plunger is provided on the hand wheel, a swivel bracket is fixedly connected to the core shaft, a plurality of radial flow fan mounting parts are evenly provided on the swivel bracket, the radial flow fan mounting parts comprise a plurality of U-shaped blocks, a positioning block is provided on the radial flow fan, the positioning block is located in a U-shaped groove of the U-shaped block, a second positioning hole is provided on the positioning block and the U-shaped block, the two second positioning holes are located on the same straight line, and positioning pins are provided in the two second positioning holes.

[0008] Furthermore, the swivel bracket is a regular hexagonal prism structure, and the six faces of the swivel bracket are all recessed downward to form a placement groove.

[0009] Furthermore, the number of the U-shaped blocks is six, the six U-shaped blocks are symmetrically arranged about the core axis, and the notch directions of every two symmetrically arranged U-shaped blocks correspond one to one.

[0010] Furthermore, one end of the U-shaped block is bent downward to form a support portion, and the support portion is fixedly connected to the swivel bracket.

[0011] Furthermore, the handwheel comprises an outer handwheel disc and an inner handwheel disc, a plurality of connecting rods are radially arranged between the outer handwheel disc and the inner handwheel disc, and six first positioning holes are arranged on the inner handwheel disc.

[0012] Furthermore, a dividing plate is provided on the second bearing seat, and one end of the core shaft is connected to the dividing plate.

[0013] Furthermore, the locating pin is interference fit with the second locating hole.

[0014] Furthermore, the positioning pin is a steel ball pin.

[0015] Beneficial effects of the present invention:

[0016] 1. The present invention places the radial flow fan in the placement groove of the swivel bracket, places the positioning block in the U-shaped groove of the U-shaped block, and fixes the radial flow fan through the positioning pin. The positioning pin and the second positioning hole have an interference fit, which can ensure that when the swivel bracket is rotated, the positioning pin is prevented from falling off from the second positioning hole. The swivel bracket is a regular hexagonal prism structure, and six radial flow fans are respectively installed on the swivel bracket, which ensures that during the air blowing and dust removal operation, multiple radial flow fans can be cleaned and maintained without dead angles, thereby improving work efficiency.

[0017] 2. The present invention cleans and maintains the six radial flow fans of the swivel bracket by rotating the hand wheel. When one of the radial flow fans moves to the top of the swivel bracket, the swivel bracket can be positioned through the dividing plate, and the knob plunger is inserted into the first positioning hole to lock the swivel bracket at this position. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1It is a front view of a radial flow fan dust removal tooling according to an embodiment of the present invention.

[0020] Figure 2 It is a left view of a radial flow fan dust removal tooling according to an embodiment of the present invention.

[0021] Figure 3 It is a right view of a radial flow fan dust removal tooling according to an embodiment of the present invention.

[0022] Figure 4 Schematic diagram of the structure of the U-shaped block and the support part according to an embodiment of the present invention.

[0023] In the figure: 1. frame, 2. radial flow fan, 3. first bearing seat, 4. second bearing seat, 5. core shaft, 6. hand wheel, 7. knob plunger, 8. swivel bracket, 81. placement groove, 9. U-shaped block, 91. support part, 10. positioning pin, 11. dividing plate. DETAILED DESCRIPTION

[0024] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0025] like Figure 1-4 As shown, a radial flow fan dust removal tool according to an embodiment of the present invention comprises a frame 1, a frame handle, wheels and a radial flow fan 2, wherein the first bearing seat 3 and the second bearing seat 4 are respectively provided at both ends of the frame 1, a core shaft 5 is provided between the first bearing seat 3 and the second bearing seat 4, and the core shaft 5 is fixedly connected with a hand wheel 6 at one end close to the first bearing seat 3, a knob plunger 7 is provided on the first bearing seat 3, and a first positioning hole matching the knob plunger 7 is provided on the hand wheel 6, a rotating bracket 8 is fixedly connected to the core shaft 5, and a plurality of radial flow fan mounting parts are evenly provided on the rotating bracket 8, and the radial flow fan mounting part comprises a plurality of U-shaped blocks 9, a positioning block is provided on the radial flow fan, and the positioning block is located in the U-shaped groove of the U-shaped block 9, and a second positioning hole is provided on the positioning block and the U-shaped block 9, and the two second positioning holes are located on the same straight line, and positioning pins 10 are provided in the two second positioning holes.

[0026] In a specific embodiment of the present invention, the swivel bracket 8 is a regular hexagonal prism structure, and the six faces of the swivel bracket 8 are all recessed downward to form a placement groove 81 .

[0027] In a specific embodiment of the present invention, the number of the U-shaped blocks 9 is six, and the six U-shaped blocks 9 are symmetrically arranged about the placement groove 81, and the groove directions of every two symmetrically arranged U-shaped blocks 9 correspond one to one.

[0028] In a specific embodiment of the present invention, one end of the U-shaped block 9 is bent downward to form a support portion 91 , and the support portion 91 is fixedly connected to the swivel bracket 8 .

[0029] In a specific embodiment of the present invention, the handwheel 6 includes an outer handwheel disc and an inner handwheel disc, a plurality of connecting rods are radially arranged between the outer handwheel disc and the inner handwheel disc, and six first positioning holes are evenly arranged on the inner handwheel disc.

[0030] In a specific embodiment of the present invention, a dividing plate 11 is disposed on the second bearing seat 4 , and one end of the core shaft 5 is rollingly connected to the dividing plate 11 .

[0031] In a specific embodiment of the present invention, the positioning pin 10 is interference fit with the second positioning hole.

[0032] In a specific embodiment of the present invention, the positioning pin 10 is a steel ball pin.

[0033] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0034] In specific use, according to a radial flow fan dust removal tooling of the present invention, the radial flow fan 2 is placed in the placement groove 81 of the rotary bracket 8, the positioning block is placed in the U-shaped groove of the U-shaped block 9, and the radial flow fan 2 is fixed by the positioning pin 10. According to the needs, the radial flow fan 2 can select a double-head motor impeller air supply fan and a single-head motor impeller air supply fan, such as Figure 4 As shown, the height of the U-shaped block 9 can be increased by the support portion 91, so that the positioning block can be placed in the U-shaped groove of the U-shaped block 9, and the positioning pin 10 is interference fit with the second positioning hole, which can ensure that the positioning pin 10 does not fall off from the second positioning hole when the swivel bracket 8 is rotated; by turning the hand wheel 12, the six lateral flow fans 2 of the swivel bracket 8 are cleaned and maintained. When one of the lateral flow fans 2 moves to the top of the swivel bracket 8, the positioning of the swivel bracket 8 can be completed by the dividing plate 11, and the knob plunger 7 is inserted into the first positioning hole to lock the swivel bracket 8 at this position.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A radial flow fan dust removal tool, comprising a frame (1), a frame handle, wheels and a radial flow fan (2), characterized in that: A first bearing seat (3) and a second bearing seat (4) are respectively provided at both ends of the frame (1); a core shaft (5) is provided between the first bearing seat (3) and the second bearing seat (4); an end of the core shaft (5) close to the first bearing seat (3) is fixedly connected to a hand wheel (6); a knob plunger (7) is provided on the first bearing seat (3); a first positioning hole matching the knob plunger (7) is provided on the hand wheel (6); a swivel bracket (8) is fixedly connected to the core shaft (5); a plurality of radial flow fan mounting parts are evenly provided on the swivel bracket (8); and the radial flow fan mounting parts are fixedly connected to the core shaft (5). The mounting part comprises a plurality of U-shaped blocks (9), the radial flow fan is provided with a positioning block, the positioning block is located in a U-shaped groove of the U-shaped block (9), the positioning block and the U-shaped block (9) are both provided with a second positioning hole, the two second positioning holes are located on the same straight line, and positioning pins (10) are provided in the two second positioning holes, the slewing bracket (8) is a regular hexagonal prism structure, the six faces of the slewing bracket (8) are all recessed downward to form a placement groove (81), the second bearing seat (4) is provided with a dividing plate (11), and one end of the core shaft (5) is rollingly connected to the dividing plate (11).

2. A radial flow fan dust removal tooling according to claim 1, characterized in that: The number of the U-shaped blocks (9) is six, and the six U-shaped blocks (9) are symmetrically arranged with respect to the placement groove (81), and the groove directions of every two symmetrically arranged U-shaped blocks (9) correspond one to one.

3. A radial flow fan dust removal tool according to claim 2, characterized in that: One end of the U-shaped block (9) is bent downward to form a support portion (91), and the support portion (91) is fixedly connected to the swivel bracket (8).

4. A radial flow fan dust removal tooling according to claim 1, characterized in that: The handwheel (6) comprises an outer handwheel disc and an inner handwheel disc, a plurality of connecting rods are radially arranged between the outer handwheel disc and the inner handwheel disc, and six first positioning holes are evenly arranged on the inner handwheel disc.

5. The radial flow fan dust removal tooling according to claim 1, characterized in that: The positioning pin (10) is interference fit with the second positioning hole.

6. A radial flow fan dust removal tool according to claim 1, characterized in that: The positioning pin (10) is a steel ball pin.

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