A multi-labyrinth shot accumulation soft sealing device on the top of the shot blasting machine chamber

Abstract

The present invention belongs to the technical field of shot blasting equipment, and specifically relates to a multi-labyrinth shot accumulation type soft sealing device on the top of a shot blasting machine chamber, comprising a chamber top protection assembly, a hook protection assembly and a hook guide device; the chamber top protection assembly comprises a sealing cover; a plurality of shot-blocking plates of the hook protection assembly and a sealing guide plate of the chamber top protection assembly form a labyrinth sealing structure; the area between the sealing plate of the hook protection assembly and the bottom plate and side plate of the sealing cover is a soft sealing area, and in a working state, the soft sealing area is filled with steel shots or steel sand to achieve soft sealing; compared with the prior art, the multi-labyrinth shot accumulation type soft sealing device on the top of a shot blasting machine chamber of the present invention (1) The sealing plate and the soft sealing area are combined to completely block the path for the steel shots to splash and overflow, and the sealing effect is good; (2) The steel shots in the soft sealing area can be frequently replaced without manual replacement and no maintenance cost; (3) The wear-resistant protective plate can effectively block most of the steel shots ejected to the opening of the shot blasting chamber and reduce the speed of the steel shots.

Description

Technical Field

[0001] The patent of this invention belongs to the technical field of shot blasting equipment, and specifically relates to a multi-labyrinth shot accumulation type soft sealing device on the top of the shot blasting machine chamber. Background Art

[0002] The through-hook shot blasting machine uses a hook to carry castings, forgings, and welded parts into a closed shot blasting chamber. Shots (steel shots or steel grit) are filled in the high-speed rotating shot blasting machine. Under the action of centrifugal force, the steel shots are thrown into a fan-shaped scattered particle flow. The high-speed flying shots hit the surface of the workpiece, peeling off the oxide layer, residual sticky sand, welding slag and other accessories on the surface of the workpiece, thereby achieving the purpose of cleaning the surface of the workpiece. During the cleaning process, the traditional top sealing device at the top of the shot blasting chamber is not sealed tightly or is easily damaged, causing the high-speed projectiles to continuously splash out of the shot blasting chamber through the gap where the hook passes at the top of the shot blasting chamber, causing serious shot splashing at the top of the shot blasting chamber, which is very likely to injure people around the shot blasting machine and pose a great safety hazard. The traditional top seal uses rubber sheets and sealing brushes. In actual use, this sealing method is less effective, especially when the seal is worn and aged, a large amount of steel shots will splash out from the top.

[0003] The CN211992521U utility model for the top sealing device of the shot blasting chamber of a through-type hook shot blasting machine utilizes "large-gap multi-labyrinth rigid sealing technology" to create a multi-layer rigid labyrinth seal. The multi-layer labyrinth protection on the top of the shot blasting chamber and the multi-layer labyrinth protection of the hook mechanism are cross-combined to form a multi-layer, tight labyrinth. The multi-layer labyrinth guard plates are all tilted downward to allow attached projectiles to slide back into the shot blasting chamber. The multi-layer labyrinth passage is rigidly sealed with highly wear-resistant alloy plates, ensuring a long service life. However, as shown in Figure 2 of the above utility model, the top plate of the shot blasting chamber has a passage for the boom to pass through, allowing a small amount of steel shot or steel grit to splash out of the shot blasting chamber during the shot blasting process. Summary of the Invention

[0004] In view of the above problems, the present invention provides a multi-labyrinth shot accumulation type soft sealing device on the top of a shot blasting machine chamber.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is as follows: a multi-labyrinth shot accumulation type soft sealing device on the top of a shot blasting machine chamber includes a chamber top protection component, a hook protection component and a hook guide device; the chamber top protection component includes a sealing cover, the sealing cover is a rectangular parallelepiped and the sealing cover is fixedly or detachably connected to the upper surface of the shot blasting chamber top plate; the sealing cover and the shot blasting chamber top plate are both provided with a passage for the suspension rod to pass through; the hook guide device includes two fixing plates, the two fixing plates are respectively fixedly connected to the upper surface of the sealing cover top plate, and are respectively located on both sides of the passage for the suspension rod to pass through the sealing cover. ; A pair of dustproof sealing rubber plates are installed in the two fixed plates; a plurality of sealing guide plates are fixedly connected to the inner wall of the sealing cover; the hook protection assembly is installed on the boom, and the hook protection assembly is in the sealing cover during the shot blasting process; the hook protection assembly includes a lower arched sealing plate and a plurality of upper shot-blocking plates; the multiple shot-blocking plates of the hook protection assembly and the sealing guide plates of the chamber top protection assembly form a labyrinth sealing structure; the area between the sealing plate and the bottom plate and side plate of the sealing cover is a soft sealing area, and the soft sealing area is filled with steel shots or steel sand in the working state to achieve soft sealing.

[0006] Preferably, in the working state, the lower end of the boom is in the shot blasting chamber, and a hook is installed at the lower end of the boom; two wear-resistant protective plates are fixedly connected to the lower surface of the shot blasting chamber top plate, and the two wear-resistant protective plates are located on both sides of the boom, and the length direction of the wear-resistant protective plates is parallel to the moving direction of the boom.

[0007] Preferably, the roof protection assembly further comprises a plurality of ribs, which are right-angled triangular plates, and the right-angled sides of the ribs are fixedly connected to the outer surface of the side wall of the sealing cover; the plurality of ribs are evenly distributed on both sides of the sealing cover.

[0008] Preferably, the chamber top protection assembly further comprises a sealing cover fixing seat, which is fixedly connected to the upper surface of the shot blasting chamber top plate; the lower end of the sealing cover is connected to the sealing cover fixing seat by bolts.

[0009] Preferably, the hook protection assembly has two pill deflector plates, namely pill deflector plate 1 and pill deflector plate 2, which are arranged from low to high in the height direction; the pill deflector plate 1 is located above the sealing plate.

[0010] Preferably, the plurality of pill deflector plates and the sealing guide plate are staggered in the height direction, and in horizontal projection, the pill deflector plate 1, the pill deflector plate 2 and the sealing guide plate partially overlap.

[0011] Preferably, the first shot deflector plate is in the shape of a horizontal plate, and the second shot deflector plate is in the shape of an arch.

[0012] Preferably, the hook guide device also includes a bearing and a pair of guide plates, the pair of guide plates are respectively installed on the upper ends of the two fixed plates by bolts, and a guide groove is formed in the middle of the pair of guide plates; the bearing is horizontally installed on the outer periphery of the boom and the inner ring of the bearing is interference fit with the boom; the bearing is in the guide groove; the boom can drive the bearing to move horizontally, and during the movement, the outer ring of the bearing is rollingly connected with the opposite sides of a pair of guide plates.

[0013] Preferably, the shot blasting machine is a hanging continuous-passing catenary shot blasting machine, the upper end of the boom is fixed on the catenary, and the lower end of the hook hangs a sling or a workpiece to continuously pass through the shot blasting chamber.

[0014] Preferably, the fixing plate is a channel steel; the longitudinal cross-section of the pair of dustproof sealing rubber plates is V-shaped, and the suspension rod passes through the middle of the pair of dustproof sealing rubber plates.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are:

[0016] The multi-labyrinth shot accumulation type soft sealing device (1) on the top of the shot blasting machine chamber body of the present invention is used. The sealing cover is fixedly or detachably connected to the upper surface of the top plate of the shot blasting chamber. The area between the sealing plate and the bottom plate and the side plate of the sealing cover is a soft sealing area. In the working state, the soft sealing area is filled with steel shots or steel grit to achieve soft sealing. The sealing plate and the soft sealing area are combined to completely block the path for the steel shots or steel grit to splash and overflow, and the sealing effect is good.

[0017] (2) During the shot blasting process, when the steel shot in the soft sealing area decreases, the steel shot will enter the multiple shot baffles and the sealing guide plates of the chamber top protection assembly to form a labyrinth sealing structure, and finally fall back to the soft sealing area to re-realize the soft seal; when the amount of steel shot exceeds the set amount of the soft sealing area, the excess steel shot will automatically overflow back into the shot blasting room. The steel shot in the soft sealing area can be frequently replaced without manual replacement, with no maintenance cost and can ensure the sealing of the top of the chamber body;

[0018] (3) Two wear-resistant protective plates are fixedly connected to the lower surface of the shot blasting chamber top plate. The wear-resistant protective plates can effectively block most of the steel shots ejected to the opening of the shot blasting chamber and reduce the speed of the steel shots;

[0019] (4) The dustproof sealing rubber plate can prevent dust from escaping; at the same time, since the bearings on the outer periphery of the boom are connected to the opposite sides of a pair of guide plates in a rolling manner, the boom and hook can be prevented from swinging during the shot blasting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments:

[0021] Figure 1 This is a schematic diagram of the multi-maze shot accumulation soft sealing device on the top of the shot blasting machine chamber.

[0022] Description of reference numerals:

[0023] 1—shot blasting room, 11—wear-resistant protective plate;

[0024] 2 - chamber top protection assembly, 21 - sealing cover, 22 - sealing guide plate, 23 - rib plate, 24 - sealing cover fixing seat;

[0025] 3—hook guide device, 31—bearing, 32—fixing plate, 33—guide plate;

[0026] 4—hook protection assembly, 41—shot deflector plate 2, 42—shot deflector plate 1, 43—sealing plate;

[0027] 5—hanging rod, 6—hanging hook, 7—soft sealing area, 8—dustproof sealing rubber plate. DETAILED DESCRIPTION

[0028] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention will be further described below with reference to the accompanying drawings and embodiments.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Example 1

[0031] The following is combined with Figure 1 The present invention is further described in the accompanying drawings. Figure 1 The multi-labyrinth shot accumulation type soft sealing device on the top of the shot blasting machine chamber shown includes a chamber top protection component 2, a hook protection component 4 and a hook guide device 3.

[0032] As attached Figure 1 As shown, the chamber top protection assembly 2 includes a sealing cover 21, which is a rectangular parallelepiped (the length is equal to the length of the shot blasting chamber 1) and the sealing cover 21 is detachably connected to the upper surface of the top plate of the shot blasting chamber 1; the sealing cover 21 and the top plate of the shot blasting chamber 1 are both provided with a passage for the suspension rod 5 to pass through; the hook guide device 3 includes two fixed plates 32, and the two fixed plates 32 are respectively fixedly connected to the upper surface of the top plate of the sealing cover 21, and are respectively located on both sides of the passage of the sealing cover 21 for the suspension rod 5 to pass through; a pair of dustproof sealing rubber plates 8 are installed in the two fixed plates 32.

[0033] As attached Figure 1 As shown, a plurality of sealing guide plates 22 are fixedly connected to the inner wall of the sealing cover 21 ; the hook protection assembly 4 is installed on the boom 5 , and the hook protection assembly 4 is in the sealing cover 21 during the shot blasting process.

[0034] As attached Figure 1 As shown, the hook protection assembly 4 includes a lower arched sealing plate 43 and multiple upper shot deflectors. The multiple shot deflectors of the hook protection assembly 4 and the sealing guide plate 22 of the roof protection assembly 2 form a labyrinthine sealing structure. The area between the sealing plate 43 and the bottom and side panels of the sealing cover 21 forms a soft sealing area 7. During operation, the soft sealing area 7 is filled with steel shot or steel grit, achieving a soft seal. The sealing plates 43 on the multiple sequentially arranged booms 5 are connected end to end.

[0035] As attached Figure 1 As shown, in the working state, the lower end of the boom 5 is in the shot blasting chamber 1, and the lower end of the boom 5 is installed with a hook 6; two wear-resistant protective plates 11 are fixedly connected to the lower surface of the top plate of the shot blasting chamber 1. The two wear-resistant protective plates 11 are located on both sides of the boom 5, and the length direction of the wear-resistant protective plates 11 is parallel to the movement direction of the boom 5. Multiple booms 5 are arranged and sequentially pass through the shot blasting chamber 1 and the sealing cover 21.

[0036] As attached Figure 1 As shown, the roof protection assembly 2 also includes a plurality of ribs 23 , which are right-angled triangular plates. The right-angled sides of the ribs 23 are fixedly connected to the outer surface of the side wall of the sealing cover 21 ; the plurality of ribs 23 are evenly distributed on both sides of the sealing cover 21 .

[0037] As attached Figure 1 As shown, the chamber top protection assembly 2 also includes a sealing cover fixing seat 24, which is fixedly connected to the upper surface of the top plate of the shot blasting chamber 1; the lower end of the sealing cover 21 is connected to the sealing cover fixing seat 24 by bolts.

[0038] As attached Figure 1 As shown, the hook protection assembly 4 has two shot deflectors, namely shot deflector plate 1 42 and shot deflector plate 2 41 , which are arranged from low to high in the height direction; shot deflector plate 1 42 is located above the sealing plate 43 .

[0039] As attached Figure 1 As shown, the plurality of pill deflectors and the sealing guide plate 22 are staggered in the height direction, and in the horizontal projection, the pill deflector plate 1 42 and the pill deflector plate 2 41 partially overlap with the sealing guide plate 22 .

[0040] As attached Figure 1 As shown, the first shot deflector plate 42 is in the shape of a horizontal plate, and the second shot deflector plate 41 is in the shape of an arch.

[0041] As attached Figure 1As shown, the hook guide device 3 also includes a bearing 31 and a pair of guide plates 33. The pair of guide plates 33 are respectively installed on the upper ends of the two fixed plates 32 by bolts, and a guide groove is formed in the middle of the pair of guide plates 33; the bearing 31 is horizontally installed on the outer periphery of the boom 5 and the inner ring of the bearing 31 is interference fit with the boom 5; the bearing 31 is in the guide groove; the boom 5 can drive the bearing 31 to move horizontally, and during the movement, the outer ring of the bearing 31 is rollingly connected with the opposite sides of the pair of guide plates 33.

[0042] like Figure 1 As shown, the shot blasting machine is a hanging continuous passing catenary shot blasting machine, the upper end of the hanger 5 is fixed on the catenary, and the lower end of the hook 6 hangs a sling or a workpiece to continuously pass through the shot blasting chamber.

[0043] The working principle of the multi-labyrinth shot accumulation type soft sealing device on the top of the shot blasting machine chamber of the present invention is as follows:

[0044] Two wear-resistant protective plates 11 are fixedly connected to the lower surface of the top plate of the shot blasting chamber 1. The wear-resistant protective plates 11 can effectively block most of the steel shots ejected to the opening of the shot blasting chamber 1 and reduce the speed of the steel shots.

[0045] The sealing cover 21 is fixedly or detachably connected to the upper surface of the top plate of the shot blasting chamber 1. The area between the sealing plate 43 and the bottom plate and side plate of the sealing cover 21 is the soft sealing area 7. In the working state, the soft sealing area 7 is filled with steel shots or steel grit to achieve soft sealing; the sealing plate 43 and the soft sealing area 7 are combined to completely block the path for the steel shots or steel grit to splash and overflow, and the sealing effect is good.

[0046] During the shot blasting process, when the steel shots in the soft sealing area 7 are reduced, the steel shots will enter the multiple shot baffles and the sealing guide plates 22 of the chamber top protection assembly 2 to form a labyrinth sealing structure, and eventually fall back to the soft sealing area 7 to re-realize the soft seal; when the amount of steel shots exceeds the set accumulation amount in the soft sealing area 7, the excess steel shots will automatically overflow back into the shot blasting chamber 1. The steel shots in the soft sealing area 7 can be frequently replaced without manual replacement, without maintenance cost, and can ensure the sealing of the chamber top.

[0047] The dustproof sealing rubber plate 8 can prevent dust from escaping; at the same time, since the bearing 31 on the periphery of the boom 5 is rollingly connected to the opposite sides of a pair of guide plates 33, the boom 5 and the hook 6 can be prevented from swinging during the shot blasting process.

[0048] The above description is merely a preferred embodiment of the present invention and does not constitute any other form of limitation to the present invention. Any person skilled in the art may utilize the technical contents disclosed above to change or modify them into equivalent embodiments with equivalent changes for application in other fields. However, any simple modification or equivalent change made to the above embodiments based on the technical essence of the present invention without departing from the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. A multi-labyrinth shot accumulation soft sealing device on the top of a shot blasting machine chamber, characterized in that: It comprises a roof protection assembly (2), a hook protection assembly (4) and a hook guide device (3); The chamber top protection assembly (2) includes a sealing cover (21), the sealing cover (21) is in a rectangular parallelepiped shape and the sealing cover (21) is fixedly or detachably connected to the upper surface of the top plate of the shot blasting chamber (1); the sealing cover (21) and the top plate of the shot blasting chamber (1) are both provided with a passage for the suspension rod (5) to pass through; The hook guide device (3) includes two fixed plates (32), the two fixed plates (32) are respectively fixedly connected to the upper surface of the top plate of the sealing cover (21), and are respectively located on both sides of the passage of the sealing cover (21) for the suspension rod (5) to pass through; a pair of dustproof sealing rubber plates (8) are installed in the two fixed plates (32); The inner wall of the sealing cover (21) is fixedly connected with a plurality of sealing guide plates (22); the hook protection assembly (4) is installed on the suspension rod (5), and the hook protection assembly (4) is located in the sealing cover (21) during the shot blasting process; The hook protection assembly (4) comprises a lower arched sealing plate (43) and a plurality of upper shot-blocking plates; the plurality of shot-blocking plates of the hook protection assembly (4) and the sealing guide plate (22) of the chamber top protection assembly (2) form a labyrinth seal structure; the area between the sealing plate (43) and the bottom plate and side plate of the sealing cover (21) is a soft sealing area (7); in the working state, the soft sealing area (7) is filled with steel shot or steel grit to achieve soft sealing; In a working state, the lower end of the suspension rod (5) is located in the shot blasting chamber (1), and a suspension hook (6) is installed at the lower end of the suspension rod (5); two wear-resistant protective plates (11) are fixedly connected to the lower surface of the top plate of the shot blasting chamber (1), and the two wear-resistant protective plates (11) are located on both sides of the suspension rod (5), and the length direction of the wear-resistant protective plates (11) is parallel to the moving direction of the suspension rod (5); The roof protection assembly (2) further comprises a plurality of ribs (23), wherein the ribs (23) are right-angled triangular plates, and the right-angled sides of the ribs (23) are fixedly connected to the outer surface of the side wall of the sealing cover (21); the plurality of ribs (23) are evenly distributed on both sides of the sealing cover (21).

2. A multi-labyrinth shot accumulation type soft sealing device on the top of a shot blasting machine chamber according to claim 1, characterized in that: The chamber top protection assembly (2) further comprises a sealing cover fixing seat (24), wherein the sealing cover fixing seat (24) is fixedly connected to the upper surface of the top plate of the shot blasting chamber (1); and the lower end of the sealing cover (21) is connected to the sealing cover fixing seat (24) via bolts.

3. The multi-labyrinth shot accumulation type soft sealing device on the top of the shot blasting machine chamber according to claim 1, characterized in that: The hook protection assembly (4) has two pill shielding plates, namely a pill shielding plate 1 (42) and a pill shielding plate 2 (41) arranged from low to high in the height direction; the pill shielding plate 1 (42) is located above the sealing plate (43).

4. A multi-labyrinth shot accumulation type soft sealing device on the top of a shot blasting machine chamber according to claim 3, characterized in that: The plurality of pill deflectors and the sealing guide plate (22) are staggered in the height direction, and in horizontal projection, the pill deflector plate 1 (42), the pill deflector plate 2 (41) and the sealing guide plate (22) partially overlap.

5. A multi-labyrinth shot accumulation type soft sealing device on the top of a shot blasting machine chamber according to claim 4, characterized in that: The first shot deflector plate (42) is in the shape of a horizontal plate, and the second shot deflector plate (41) is in the shape of an arch.

6. A multi-labyrinth shot accumulation type soft sealing device on the top of a shot blasting machine chamber according to claim 1, characterized in that: The hook guide device (3) further comprises a bearing (31) and a pair of guide plates (33), wherein the pair of guide plates (33) are respectively mounted on the upper ends of the two fixing plates (32) by bolts, and a guide groove is formed in the middle of the pair of guide plates (33); The bearing (31) is horizontally mounted on the outer periphery of the suspension rod (5), and the inner ring of the bearing (31) is interference-fitted with the suspension rod (5); the bearing (31) is located in the guide groove; the suspension rod (5) can drive the bearing (31) to move horizontally, and during the movement, the outer ring of the bearing (31) is rollingly connected to the opposite sides of a pair of guide plates (33).

7. The multi-labyrinth shot accumulation type soft sealing device on the top of the shot blasting machine chamber according to claim 1, characterized in that: The shot blasting machine is a hanging continuous passing catenary shot blasting machine, wherein the upper end of the hanging rod (5) is fixed on the catenary, and the lower end of the hook (6) hangs a sling or a workpiece to continuously pass through the shot blasting chamber.

8. The multi-labyrinth shot accumulation type soft sealing device on the top of the shot blasting machine chamber according to claim 1, characterized in that: The fixing plate (32) is a channel steel; the longitudinal cross-section of the pair of dustproof sealing rubber plates (8) is V-shaped, and the suspension rod (5) passes through the middle of the pair of dustproof sealing rubber plates (8).

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