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CN-117773785-B - Sealing device and method with adjustable sealing strength of catenary passageway opening of catenary shot blasting machine

CN117773785BCN 117773785 BCN117773785 BCN 117773785BCN-117773785-B

Abstract

The invention discloses a sealing device and a sealing method with adjustable sealing strength of a catenary passage opening of a catenary shot blasting machine, comprising the catenary shot blasting machine, wherein a traveling track of the catenary shot blasting machine is used for hoisting a workpiece to travel into a shot blasting cavity through a catenary sling; the brush handle is provided with an air cavity, the brush hair is provided with an axial brush hair cavity, the air cavity is communicated with the brush hair cavity, air is supplied to and exhausted from the brush hair cavity through the air cavity, and the structural strength of the brush hair is changed. According to the invention, the catenary channel opening of the shot blasting cavity is sealed by the bristles with adjustable structural strength, so that the resistance is reduced, the impact deformation capacity of abutting against shot blasting and dust particles is improved, the self-adaptive sealing is realized, and the mechanical equipment faults caused by the shot blasting and dust particles entering a catenary system are avoided.

Inventors

  • NING LIMIN
  • ZHAO YITING

Assignees

  • 无锡艾迪尔机械制造有限公司

Dates

Publication Date
20260505
Application Date
20240108

Claims (5)

  1. 1. The sealing device with adjustable sealing strength of a catenary passage opening of the catenary shot blasting machine comprises the catenary shot blasting machine, wherein a traveling track of the catenary shot blasting machine is used for hoisting a workpiece (4) to travel into a shot blasting cavity (1) through a catenary sling (2), and the catenary sling (2) penetrates through a catenary passage opening (3) at the top of the shot blasting cavity (1); the novel brush is characterized by further comprising a sealing device (5) arranged at the catenary crossing (3), wherein the sealing device (5) comprises a sealing cavity (50) for conducting the catenary crossing (3), symmetrical brush strips (6) are arranged on the cavity wall of the sealing cavity (50), and the brush strips (6) comprise brush handles (7) and brush hairs (8) arranged on the brush handles (7), and the brush hairs (8) of two brush strips (6) which are symmetrically formed into a group are oppositely arranged; The brush handle (7) is provided with an air cavity (70), the brush hair (8) is provided with an axial brush hair cavity (80), the air cavity (70) is communicated with the brush hair cavity (80), air is supplied and exhausted to the brush hair cavity (80) through the air cavity (70), the structural strength of the brush hair (8) is changed, and the sealing strength of the catenary crossing (3) is adjusted through the change of the structural strength of the brush hair (8); On the walking direction (10) of a catenary sling (2) for hoisting a workpiece (4), the air cavity (70) of the brush handle (7) is divided into a plurality of air separation cavities (700) which are sequentially arranged, and different air separation cavities (700) enable corresponding brush hairs (8) to be in different structural strength states when in different states of air supply and air extraction, wherein: The bristles (8) corresponding to the air distribution cavity (700) in the air supply state are in a high-structural strength state to form a high-structural strength bristle area (100), the bristles (8) corresponding to the air distribution cavity (700) in the air exhaust state are in a low-structural strength state to form a low-structural strength bristle area (200), the high-structural strength bristle area (100) and the low-structural strength bristle area (200) can be converted, the bristles (8) corresponding to the air distribution cavity (700) which the catenary sling (2) passes through are in a low-structural strength state which belongs to the low-structural strength bristle area (200), and the bristles (8) corresponding to the air distribution cavity (700) which the catenary sling (2) has passed through and has not passed through are in a high-structural strength state which belongs to the high-structural strength bristle area (100); Each gas-dividing cavity (700) is correspondingly provided with an electric gas valve (9) and a gas pressure sensor (11) for detecting internal gas pressure; The brush hair (8) which are symmetrically formed into a group and are opposite in orientation is provided with a magnetic attraction component (12), the brush hair (8) which belongs to the high-structural-strength brush hair area (100) is connected through the magnetic attraction component (12), and the brush hair (8) which belongs to the low-structural-strength brush hair area (200) is separated through the magnetic attraction of the magnetic attraction component (12) which is formed by walking of the catenary sling (2).
  2. 2. The sealing device with adjustable sealing strength of the catenary passage opening of the catenary shot blasting machine according to claim 1, wherein the number of the hairbrush strips (6) is a plurality of groups which are arranged at intervals in the height direction of the sealing cavity (50).
  3. 3. The sealing device with adjustable sealing strength of the catenary passageway port of the catenary shot blasting machine according to claim 2, wherein the sealing device comprises a pair of vertical frames (13) which are symmetrically erected on two sides of the catenary passageway port (3), and the sealing cavity (50) is formed by limiting the space between the pair of vertical frames (13).
  4. 4. The sealing device with adjustable sealing strength of a catenary passage opening of a catenary shot blasting machine according to claim 3, wherein a supporting plate (14) is arranged on the cavity wall of the sealing cavity (50) corresponding to the installation height position of the hairbrush strip (6), and the hairbrush strip (6) is installed on the supporting plate (14) through a brush handle (7).
  5. 5. The sealing method of the sealing device with the adjustable sealing strength of the catenary passage opening of the catenary shot blasting machine according to claim 2,3 or 4, wherein the workpiece (4) is hoisted by the catenary sling (2) to travel along a travel track, when traveling into a shot blasting cavity (1) of the catenary shot blasting machine, the structural strength of corresponding bristles (8) is reduced by pumping air into the air distribution cavity (700) when traveling to the range of the corresponding air distribution cavity (700), a bristle area (200) with low structural strength is formed, the bristles (8) are easy to deform under the impact of the catenary sling (2), and magnetic attraction parts (12) between the bristles (8) are easy to be punched, so that the bristles on two sides of the catenary sling (2) are scattered by the impact, the resistance is reduced, and the friction between the catenary sling (2) and the bristles (8) is reduced; The other bristle areas corresponding to the air distribution cavities (700) are areas which are passed by and not passed by the catenary sling (2), air is supplied to the air distribution cavities (700) corresponding to the bristle areas which are passed by and not passed by the catenary sling (2), and the structural strength of the corresponding bristles (8) is improved, so that a bristle area (200) with high structural strength is formed, the deformation resistance of the bristles (8) is enhanced, the impact resistance of shot blasting and dust particles in the shot blasting cavity (1) is improved, and the mechanical equipment faults caused by the shot blasting and dust particles entering the catenary sling (2) and a walking track are avoided when the catenary sling (2) operates; The bristles (8) of the bristle area (200) with high structural strength are connected with the bristles (8) of the same group of hairbrush strips (6) through magnetic attraction of the magnetic attraction component (12), and the bristles (8) on two sides are connected into a whole through the magnetic attraction component, so that the capability of the bristles (8) for resisting separation and deformation due to impact of shot blasting and dust particles is further improved.

Description

Sealing device and method with adjustable sealing strength of catenary passageway opening of catenary shot blasting machine Technical Field The invention belongs to the technical field of catenary shot blasting machine sealing, and particularly relates to a catenary passageway opening sealing strength adjustable sealing device and method of a catenary shot blasting machine. Background The catenary shot blasting machine adopts a catenary sling to hoist a workpiece needing shot blasting to be processed through the shot blasting machine, and meanwhile, because the catenary sling needs to pass through the upper part of the shot blasting machine, the upper part of the shot blasting machine needs to be provided with a through-length opening, which is called a catenary crossing, so that the problem that the shot blasting work needs to be sealed is brought. The traditional seal generally adopts rubber seal, and has the problems of large resistance and serious abrasion, and the rebound recovery speed of rubber is slower, so that partial shot blasting and dust particles easily enter a catenary system through a gap which is not recovered to cover, and equipment failure is caused. Disclosure of Invention The invention aims to overcome the defects in the prior art, and provides the sealing device and the sealing method with adjustable sealing strength of the catenary crossing of the catenary shot blasting machine. In order to achieve the purpose, the sealing device with the adjustable sealing strength of the catenary passage opening of the catenary shot blasting machine comprises the catenary shot blasting machine, wherein a traveling track of the catenary shot blasting machine is used for hoisting a workpiece to travel into a shot blasting cavity through a catenary sling, and the catenary sling penetrates through the catenary passage opening at the top of the shot blasting cavity; the sealing device is arranged at the crossing of the catenary; the sealing device comprises a sealing cavity for conducting a catenary crossing, symmetrical brush strips are arranged on the cavity wall of the sealing cavity, each brush strip comprises a brush handle and brush hairs arranged on the brush handle, and the brush hairs of two brush strips which form a group are oppositely arranged in a direction opposite to each other; the brush handle is provided with an air cavity, the brush hair is provided with an axial brush hair cavity, the air cavity is communicated with the brush hair cavity, air is supplied to the brush hair cavity and exhausted from the brush hair cavity through the air cavity, the structural strength of the brush hair is changed, and the sealing strength of the catenary crossing is adjusted through the change of the structural strength of the brush hair. Further, in the walking direction of the hanging chain lifting tool for lifting the workpiece, the air cavities of the brush handle are divided into a plurality of air distribution cavities which are sequentially arranged, and different air distribution cavities enable corresponding brush hairs to be in different structural strength states when in different states of air supply and air extraction, wherein: The bristles corresponding to the air distribution cavity in the air supply state are in a high-structural strength state to form a high-structural strength bristle area, the bristles corresponding to the air distribution cavity in the air exhaust state are in a low-structural strength state to form a low-structural strength bristle area, the high-structural strength bristle area and the low-structural strength bristle area can be converted, the bristles belonging to the air distribution cavity, through which the hanging sling passes, are in a low-structural strength state belonging to the low-structural strength bristle area, and the bristles belonging to the air distribution cavity, through which the hanging sling passes and not pass, are in a high-structural strength state belonging to the high-structural strength bristle area. Further, each of the gas-dividing chambers is provided with an electric gas valve and a gas pressure sensor for detecting the internal gas pressure. Further, magnetic attraction parts are arranged between the brush hairs which are oppositely arranged and symmetrically form a group of two brush strips, the brush hairs belonging to the brush hair areas with high structural strength are connected through magnetic attraction of the magnetic attraction parts, and the brush hairs belonging to the brush hair areas with low structural strength are separated through the connection of the magnetic attraction parts when the suspension chain lifting appliance walks. Further, in the height direction of the sealing cavity, the number of the hairbrush strips is a plurality of groups which are arranged at intervals. Further, the device comprises a pair of vertical frames which are symmetrically erected on two sides of the cantilever passageway opening, and