A double air bag scraper swing frame

Abstract

The utility model discloses a double-airbag scraper swing frame, which relates to the scraper technology field, including a scraper frame and an airbag receiving groove, end plates are symmetrically arranged at both ends of the airbag receiving groove, and the end plates are respectively connected to a first connecting shaft and a second connecting shaft by screws, and core shafts are symmetrically arranged at both ends of the scraper frame, and the core shaft is arranged in the center hole of the end plate, and a scraper frame is arranged on one side of the upper end of the scraper frame, and the lower end of the scraper frame is arranged in the airbag receiving groove, and an airbag is arranged in the airbag receiving groove, and two airbags are respectively arranged on both sides of the scraper frame, and the inflation and deflation of the double airbags are controlled by a pneumatic control system, and the airbag receiving groove and the outer ring of the scraper frame are provided with a protective cover. The utility model has a compact structure and is light in weight. The double airbags are arranged on both sides of the scraper frame, which can reduce the maximum size of at least one airbag when opened, and can achieve the required working pressure and swing amplitude in conjunction with the pneumatic control system, and is easy to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of scrapers, in particular to a double-airbag scraper swing frame. Background Art

[0002] The double-airbag scraper is mainly composed of a swing frame and a scraper blade. Its main function is to install scrapers of different materials. It is driven by compressed air as a power source. It can be used for smearing, scraping and cleaning in the fields of papermaking, metallurgy, environmental protection, etc. The double-airbag swing frame plays a role in driving, adjusting the scraper pressure, controlling the coating thickness, etc. in this working process.

[0003] At present, there are various forms of airbag swing racks, which are widely used in papermaking, metallurgy, environmental protection and other industries. At present, most scraper swing brackets are fixed products for specific equipment. In some narrow spaces or when non-standard designs are required, the production cost is high, the design and production cycle is long, and it cannot meet the actual needs. Many project designs are forced to change the design plan or reduce the design performance to use the inherent model. Under this background, it is very necessary to design a universal airbag scraper swing bracket suitable for small-scale production, fast non-standard design, compact structure and lightweight.

[0004] Publication No. CN209034934U discloses a double-airbag scraper with a swing device, the connecting rod a is located in the middle of the device, the left and right ends are respectively installed on the transmission shaft in the middle of the support rod, the blade is movably installed on the double-airbag device, the double-airbag device is located in the middle of the device, and is fixed by the connecting rod a. The double-airbag device is designed with airbags inside, the support rod has two, which are respectively fixed above the bracket, and the bracket has two, which are respectively located on the left and right sides of the double-airbag device. The application has a complex structure, and the two airbags are arranged on the same side of the scraper frame, resulting in a large overall structural size and high manufacturing cost; the open design is adopted, which is easy to accumulate dust, difficult to clean and maintain, and has poor adaptability under harsh working conditions such as high dust, high humidity, and high temperature, which will reduce the service life. Summary of the invention

[0005] The utility model aims to solve the above technical problems and provide a universal double-airbag scraper swing frame which is suitable for small-scale production, fast non-standard design, compact structure and lightweight.

[0006] In order to achieve the above-mentioned technical objectives and meet the above-mentioned technical requirements, the technical solution adopted by the utility model is: a double-airbag scraper swing frame, including a scraper frame and an airbag accommodating groove, characterized in that: end plates are symmetrically arranged at both ends of the airbag accommodating groove, and the end plates are respectively connected to the first connecting shaft and the second connecting shaft by screws, and core shafts are symmetrically arranged at both ends of the scraper frame, and the core shaft is arranged in the center hole of the end plate, a scraper frame is arranged on one side of the upper end of the scraper frame, and the lower end of the scraper frame is arranged in the airbag accommodating groove, and an airbag is arranged in the airbag accommodating groove, and two airbags are respectively arranged on both sides of the scraper frame, and the inflation and deflation of the double airbags are controlled by a pneumatic control system, and the airbag accommodating groove and the outer ring of the scraper frame are provided with a protective cover.

[0007] Preferably: the pneumatic control system includes an oil-gas separator, a pressure regulating valve, a flow regulating valve, and a three-position four-way solenoid valve connected in sequence, the oil-gas separator is connected to an air source, the three-position four-way solenoid valve is connected to a control power supply, and an interface is provided on the three-position four-way solenoid valve, and the interface is respectively connected to the airbag interface.

[0008] Preferably, the core shaft is clearance-matched with the center hole of the end plate.

[0009] Preferably, the end plate is connected to the airbag accommodating groove by screws.

[0010] Preferably: a positioning slot is provided on the end plate, and both ends of the airbag accommodating slot are respectively arranged in the positioning slot.

[0011] Preferably: a gas channel is provided on the first connecting shaft and the end plate, and the compressed air is connected to the airbag through the gas channel.

[0012] Preferably, the cross section of the airbag accommodating groove is set to be a hexagon with an open upper end, and end covers are respectively provided at both ends. Bolt holes and vent holes are symmetrically provided on both sides of the end cover, and a slot is provided in the middle.

[0013] Preferably, the cross section of the protective cover is set to be circular.

[0014] Compared with the traditional structure, the utility model has the following beneficial effects:

[0015] 1. The utility model has a compact structure and light weight. The double airbags are arranged on both sides of the scraper frame, which can reduce the maximum size of at least one airbag when it is opened. The required working pressure and swing amplitude can be achieved with the pneumatic control system, and the operation is convenient. The length of the scraper frame can be extended or shortened according to actual needs, and the design freedom is relatively large.

[0016] 2. The utility model has good adaptability, is easy to clean and maintain, and adopts a closed structure. It has good adaptability under harsh working conditions such as high dust, high humidity, and high temperature, and prolongs the service life. The circular three-dimensional structure is adopted. Under the same weight, the product structure rigidity and stability exceed the flat structure, and the circular outer surface is easier to remove dust accumulation, which plays an irreplaceable role in the service life and maintenance of the equipment.

[0017] 3. The utility model has low production cost and does not require additional special structures. It can be fixed with standard parts such as U-bolts and clamps. The installation angle is not affected and it is easy to use and install. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the airbag accommodating tank of the utility model;

[0020] Figure 3 for Figure 2 Left view of

[0021] Figure 4 This is a schematic diagram of the scraper frame structure of the utility model;

[0022] Figure 5 for Figure 4 Left view of

[0023] Figure 6 This is a schematic diagram of the end plate structure of the utility model;

[0024] Figure 7 for Figure 6 Medium AA view;

[0025] Figure 8 for Figure 6 Middle BB view;

[0026] Fig. 9 This is a schematic diagram of the structure of the first connecting shaft of the utility model;

[0027] Fig.10 for Fig. 9 Left view of

[0028] Fig.11 for Fig. 9 Right view of;

[0029] Fig.12 This is a schematic diagram of the structure of the second connecting shaft of the utility model;

[0030] Fig.13 for Fig.12 Left view of

[0031] Fig.14 for Fig.12 Right view of;

[0032] Fig.15 This is a schematic diagram of the inflated state of the left airbag of the utility model;

[0033] Fig.16 This is a schematic diagram of the right airbag of the utility model in the inflated state;

[0034] Fig.17 This is the circuit diagram of the pneumatic control system of the utility model;

[0035] In the figure: 1. scraper frame, 2. end plate, 21. positioning slot, 22. end plate center hole, 23. gas channel, 3. second connecting shaft, 4. airbag accommodating groove, 5. first connecting shaft, 6. core shaft, 7. scraper frame, 8. airbag, 81. inflated state airbag, 82. exhausted state airbag, 9. protective cover, 10. end cover, 101. bolt hole, 102. vent hole, 103. slot. DETAILED DESCRIPTION

[0036] The utility model is further described below.

[0037] See attached Figure 1-17 A double-airbag scraper swing frame comprises a scraper frame 1 and an airbag accommodating groove 4. End plates 2 are symmetrically arranged at both ends of the airbag accommodating groove 4. The end plates 2 are respectively connected to a first connecting shaft 5 and a second connecting shaft 3. Mandrels 6 are symmetrically arranged at both ends of the scraper frame 1. The mandrel 6 is arranged in a center hole 22 of the end plate. A scraper frame 7 is arranged on one side of the upper end of the scraper frame 1. The lower end of the scraper frame 1 is arranged in the airbag accommodating groove 4. An airbag 8 is arranged in the airbag accommodating groove 4. Two airbags 8 are respectively arranged on both sides of the scraper frame 1. The inflation and deflation of the double airbags are controlled by a pneumatic control system. A protective cover 9 is arranged on the outer ring of the airbag accommodating groove 4 and the scraper frame 1.

[0038] In this preferred embodiment, the pneumatic control system includes an oil-gas separator, a pressure regulating valve, a flow regulating valve, and a three-position four-way solenoid valve connected in sequence, the oil-gas separator is connected to an air source, the three-position four-way solenoid valve is connected to a control power supply, and the three-position four-way solenoid valve is provided with interfaces, which are respectively connected to airbag interfaces.

[0039] In this preferred embodiment, the core shaft 6 is clearance-fitted with the center hole 22 of the end plate.

[0040] In this preferred embodiment, the end plate 2 is connected to the airbag accommodating groove 4 by screws.

[0041] In this preferred embodiment, a positioning slot 21 is provided on the end plate 2 , and both ends of the airbag accommodating slot 4 are respectively disposed in the positioning slot 21 .

[0042] In this preferred embodiment, a gas channel 23 is provided on the first connecting shaft 5 and the end plate 2 , and the compressed air is connected to the airbag through the gas channel 23 .

[0043] In this preferred embodiment, the cross-section of the airbag accommodating groove 4 is set to be an open hexagon at the upper end, and end covers 10 are respectively provided at both ends. Bolt holes 101 and vent holes 102 are symmetrically provided on both sides of the end cover 10, and a slot 103 is provided in the middle.

[0044] In this preferred embodiment, the cross section of the protective cover 9 is set to be circular.

[0045] In the specific implementation, a sheet metal structure is adopted, and the airbag receiving groove 4, the scraper frame 1, the end plate 2, the first connecting shaft 5, the second connecting shaft 3, the airbag 8, the pneumatic control system, etc. are combined together by auxiliary means such as riveting and fasteners to form a set of airbag scraper brackets. The end plate 2 is connected to the airbag receiving groove 4 by screws, and there is a positioning card groove 21 between the end plate 2 and the airbag receiving groove 4 to ensure the position accuracy. The mandrels 6 at both ends of the scraper frame 1 are fixed in the center hole 22 of the end plate, and the mandrels 6 at both ends of the scraper frame 1 can swing in the center hole 22 of the end plate. The airbag 8 is installed on both sides of the scraper frame 1, and the connecting shaft is connected to the end plate 2 by screws. A gas channel 23 is designed between the connecting shaft and the end plate 2, and the compressed air is connected to the airbag 8 through the gas channel 23. The gas channel can be designed on the first connecting shaft 5 or on the second connecting shaft 3. The pneumatic control system controls the inflation and deflation of the double airbags. When the left airbag is inflated, the right airbag is deflated, and the scraper frame swings to the left; when the right airbag is inflated, the left airbag is deflated, and the scraper frame swings to the right. The pneumatic control system button can be used to control the scraper frame to swing. The airbag scraper bracket can achieve the required working pressure and swing amplitude in conjunction with the pneumatic control system.

[0046] The above embodiments of the present invention are merely examples to clearly illustrate the present invention, but are not intended to limit the protection scope of the present invention. All equivalent technical solutions also belong to the scope of the present invention. The patent protection scope of the present invention should be defined by the claims.

Claims

1. A double-airbag scraper swing frame, comprising a scraper frame (1) and an airbag receiving groove (4), characterized in that: End plates (2) are symmetrically arranged at both ends of the airbag accommodating groove (4), and the end plates (2) are respectively connected to the first connecting shaft (5) and the second connecting shaft (3). Mandrels (6) are symmetrically arranged at both ends of the scraper frame (1), and the mandrels (6) are arranged in the center holes (22) of the end plates. A scraper frame (7) is arranged on one side of the upper end of the scraper frame (1), and the lower end of the scraper frame (1) is arranged in the airbag accommodating groove (4). An airbag (8) is arranged in the airbag accommodating groove (4), and two airbags (8) are respectively arranged on both sides of the scraper frame (1). The inflation and deflation of the double airbags are controlled by a pneumatic control system. Protective covers (9) are arranged on the outer rings of the airbag accommodating groove (4) and the scraper frame (1).

2. The double airbag scraper swing frame according to claim 1 is characterized in that: The pneumatic control system includes an oil-gas separator, a pressure regulating valve, a flow regulating valve, and a three-position four-way solenoid valve connected in sequence. The oil-gas separator is connected to an air source, the three-position four-way solenoid valve is connected to a control power supply, and the three-position four-way solenoid valve is provided with interfaces, which are respectively connected to airbag interfaces.

3. The double-airbag scraper swing frame according to claim 1 is characterized in that: The core shaft (6) is clearance-matched with the center hole (22) of the end plate.

4. The double airbag scraper swing frame according to claim 1, characterized in that: The end plate (2) is connected to the airbag accommodating groove (4) via screws.

5. The double airbag scraper swing frame according to claim 1 is characterized in that: The end plate (2) is provided with a positioning slot (21), and both ends of the airbag accommodating slot (4) are respectively arranged in the positioning slot (21).

6. The double-airbag scraper swing frame according to claim 1 is characterized in that: A gas channel (23) is provided on the first connecting shaft (5) and the end plate (2), and compressed air is connected to the airbag through the gas channel (23).

7. The double-airbag scraper swing frame according to claim 1 is characterized in that: The cross section of the airbag accommodating groove (4) is arranged in a hexagonal shape with an open top, and end covers (10) are arranged at both ends respectively. Bolt holes (101) and vent holes (102) are symmetrically arranged on both sides of the end cover (10), and a slot (103) is arranged in the middle.

8. The double-airbag scraper swing frame according to claim 1, characterized in that: The cross section of the protective cover (9) is arranged to be circular.

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