Sealing mechanism of catenary stepping type shot blasting machine
By designing a sealing protective cover and a flip-type sealing structure in a catenary shot blasting cleaning machine, combining multiple sets of seals and power cylinders, the problem of steel ball splashing is solved, and better sealing effect and hook passability is achieved. Reduced waste of steel balls.
Patent Information
- Application Number
- CN202323595645.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-28
AI Technical Summary
During the use of the existing catenary shot blasting machine, steel balls may splash out from the seams passing through the hook on the top of the chamber body, causing injuries and equipment damage. At the same time, the sealing effect is poor, resulting in a large number of projectiles splashing out, waste. Steel balls.
A sealing mechanism of a catenary stepper shot blasting cleaning machine is designed, including a sealing protective cover and a flip-type sealing structure, adopting a steel plate bending structure and multiple sets of seals, combining the power cylinder and the sealing shield to form a lever structure. Enhance the sealing effect.
A better sealing effect is achieved, reducing the projectile ejection from the top of the shot blasting chamber, reducing the waste of steel balls, ensuring the smooth passage of the hook and sealing effect.
Smart Images
Figure CN222155226U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shot blasting cleaning machines, in particular to a sealing mechanism of a catenary stepping shot blasting cleaning machine. Background Art
[0002] The shot blasting machine uses a high-speed rotating impeller to throw the projectiles onto the workpieces in the shot blasting chamber, thereby achieving the purpose of cleaning the workpieces. There are many types of shot blasting machines, the most common of which are crawler shot blasting machines, catenary hook shot blasting machines, turntable shot blasting machines and roller shot blasting machines. Among them, the catenary shot blasting machine is suitable for shot blasting cleaning of small cast iron parts, steel castings, forgings and stampings, especially for cleaning forgings and castings, to remove the sticky sand, rust, scale, dirt, etc. on the surface of the workpiece, so that the surface of the workpiece presents the original color of the metal, eliminates the internal stress of the workpiece, improves the fatigue resistance of the workpiece, increases the adhesion of the paint film when the workpiece is sprayed, and finally achieves the purpose of improving the surface and internal quality of the workpiece. During its use, steel shots may splash out from the seam where the hook on the top of the chamber passes, which is not only easy to hurt people, but also causes damage to certain parts outside the chamber, and causes waste of steel shots.
[0003] To solve this problem, the common practice is to use a rubber sheet or a brush to cover the seam. Since the rubber sealing strip or bristles have certain flexibility and elasticity, this structural advantage of the common practice is that it is convenient for the passage of the hook arm, and is also conducive to the elastic reset and extension after the arm passes, so that the free end remains in a docking state, which can have a certain sealing effect; but its fatal defect or shortcoming is that the flexible bristles have weak impact resistance against the splash of pellets and sand, low sealing ability, and poor sealing effect. In addition, due to the frequent entry and exit of the hook arm in the slot, the rubber strip or bristles are deformed, worn, or even aged under long-term pressure. It is difficult to effectively ensure that it is always in an effective sealing state during the reset and extension process, resulting in a large number of pellets splashing out. Utility Model Content
[0004] The purpose of the utility model is to solve the deficiencies of the above-mentioned prior art and to provide a sealing mechanism for a catenary stepping shot blasting cleaning machine.
[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a sealing mechanism of a catenary stepping shot blasting cleaning machine, a strip-shaped transparent slot hole for the catenary hook to pass through is opened at the center of the top plate of the shot blasting room in the shot blasting cleaning machine, the sealing mechanism is fixedly installed above the strip-shaped transparent slot hole on the top plate of the shot blasting room, and includes a sealing protective cover and a flip-type sealing structure installed at both ends of the sealing protective cover, the sealing protective cover is inverted and fixed above the top plate of the shot blasting room, the two ends of the sealing protective cover are open, the interior is hollow, and the sealing cavity is formed with the top plate of the shot blasting room; the flip-type sealing structure is fixed at the top of the top plate of the shot blasting room, and the two ends of the sealing protective cover are open and ... The sealing structure is a middle-opening structure, including a left-opening door component and a right-opening door component. The two have the same structure and are symmetrically arranged. They both include a power cylinder, a flip cover plate and a sealing shielding curtain. The flip cover plate is vertically hinged to the end of the sealing protective cover, and a connecting support rod is fixedly installed on its outer side. The power cylinder is installed on the outer side wall of the sealing protective cover, and the end of its telescopic rod is hinged to the connecting support rod to form a lever structure. The sealing shielding curtain is fixedly installed on the flip cover plate, and the free ends of the two sealing shielding curtains in the left-opening door component and the right-opening door component are connected to each other to form a seal.
[0006] Furthermore, the bottom of the sealing mechanism is open and sealed above the hook protection structure. The hook protection structure is fixed on the top plate of the shot blasting chamber and includes a steel plate support and multiple groups of seals arranged at different heights. The steel plate support is fixedly installed on both sides of the strip-shaped transparent slot, and the seal is installed on the inner side of the steel plate support. From top to bottom, it includes a bristle seal, a first rubber plate seal and a second rubber plate seal. The middle straight rod of the catenary hook passes through the middle of the bristle seal, the first rubber plate seal and the second rubber plate seal, and the hook-shaped portion at the lower end extends into the interior of the shot blasting chamber.
[0007] Furthermore, the sealing protective cover is made of steel plates bent into a rectangular structure, and the longitudinal cross-section of the inner bottom thereof is an inverted eight-shaped structure that is wide at the top and narrow at the bottom; a connecting through hole for an I-beam fixing to pass through is provided on the top plate of the sealing protective cover, and a sealing treatment is performed between the I-beam fixing and the connecting through hole.
[0008] Furthermore, the base of the power cylinder is hinged on a cylinder bracket, and the cylinder bracket is fixed on an outer side wall of the corresponding sealing protective cover.
[0009] Furthermore, the sealing shielding curtain is a soft bristle structure, the bristle material of which is nylon; or a strip rubber plate structure.
[0010] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a simple overall structure and a reasonable design, and realizes secondary sealing, which not only ensures the smooth passage of the hook, but also facilitates better sealing, reduces the ejection of projectiles from the top of the shot blasting chamber, reduces the waste of steel shots, and forms a relatively complete sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0012] Figure 2 This is a schematic diagram of the structure of the utility model installed in a shot blasting room;
[0013] Figure 3 for Figure 2 Left view of the middle structure;
[0014] Figure 4 It is a longitudinal sectional view of the utility model;
[0015] In the figure: 1. Sealing protective cover, 2. Flip-type sealing structure, 4. I-beam, 5. Support frame, 6. Top plate of shot blasting chamber, 7. Strip-shaped transparent slot, 11. Connecting through hole, 12. Reinforcement rib plate, 21. Power cylinder, 22. Flip-top plate, 23. Sealing shielding curtain, 24. Cylinder bracket, 25. Connecting support rod, 31. Steel plate support, 32. Brush seal, 33. First rubber plate seal, 34. Second rubber plate seal. DETAILED DESCRIPTION
[0016] It should be noted that, in the description of the present invention, terms such as "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", "center", "longitudinal", "lateral", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationships of the various components in the present invention, and do not specifically mean that any component in the present invention must have a specific direction, be constructed and operated in a specific direction, and cannot be understood as a limitation on the present invention.
[0017] In addition, in the utility model, the descriptions such as "first" and "second" are only used for descriptive purposes, and do not specifically refer to the order or sequence, nor are they used to limit the utility model. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features.
[0018] In the description of the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "set" should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrally connected; they can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] The specific implementation of the utility model is further described in detail below with reference to the accompanying drawings:
[0020] like Figures 1 to 4 As shown, a sealing mechanism of a catenary step-by-step shot blasting machine is arranged above the top plate of the shot blasting chamber in the shot blasting machine. A strip-shaped transparent slot hole 7 is provided at the center of the top plate 6 of the shot blasting chamber in the shot blasting machine along its length direction for the catenary hook to pass through. In order to prevent the projectile from splashing out of the hook channel during the workpiece cleaning process, a hook protection structure is installed at the strip-shaped transparent slot hole 7. The hook protection structure includes two steel plate support members 31 and multiple groups of sealing members at different heights arranged between the two steel plate support members 31. The two steel plate support members 31 are fixed and installed by bolts respectively. Installed on both sides of the strip-shaped transparent slot 7, located on the upper surface of the shot blasting chamber top plate 6, symmetrically; the mounting ends of multiple sets of seals are fixedly installed on the corresponding steel plate support 31 by bolts, and include a bristle seal 32, a first rubber plate seal 33 and a second rubber plate seal 34 from top to bottom. The bristle seal 32, the first rubber plate seal 33 and the second rubber plate seal 34 are divided into left and right parts, and the free ends of the two parts overlap each other to form a sealed channel in the middle for the middle straight rod of the catenary hook to pass through, and the hook-shaped portion at the lower end of the catenary hook extends into the interior of the shot blasting chamber.
[0021] The sealing structure described in the utility model is fixedly installed on the upper end of the steel plate support 31 of the hook protection structure, including a sealing protective cover 1 and a flip-type sealing structure 2 installed at both ends of the sealing protective cover 1, wherein the sealing protective cover 1 is made of steel plate bent into a rectangular structure, which is hollow inside and open at both ends, and the bottom of the sealing protective cover 1 is provided with a long through groove corresponding to the strip-shaped transparent slot 7, which is convenient for the sliding passage of the catenary hook; the sealing protective cover 1 is installed upside down on the top of the hook protection structure, and a reinforcing rib plate 12 is also provided on its outer side wall to increase the strength of the entire sealing protective cover 1; a plurality of connecting through holes 11 are provided on the top plate of the sealing protective cover 1, and the I-beam 4 for hanging and sliding of the catenary hook is fixedly installed and erected through a plurality of support frames 5 erected on the top of the shot blasting chamber, and the I-beam fixing piece between the I-beam 4 and the support frame 5 is arranged through the connecting through holes 11 at the corresponding position, so that the I-beam 4 is inside the sealing protective cover 1, and the connecting through holes 11 are sealed at the same time. Both ends of the sealing protective cover 1 are equipped with a flip-type sealing structure 2. The flip-type sealing structure 2 is a middle-opening structure, including a left-opening door component and a right-opening door component. The two have the same structure and are symmetrically arranged. Taking the right-opening door component as an example, they all include a power cylinder 21, a flip-up plate 22 and a sealing shielding curtain 23. The bottom of the power cylinder 21 is hinged to the cylinder bracket 24, and the cylinder bracket 24 is fixedly installed on the outer wall of the sealing protective cover on the corresponding side by bolts; a vertical side edge of the flip-up plate 22 is hinged to the vertical side edge of the end of the sealing protective cover, and a connecting support rod 25 is fixedly installed horizontally on its outer wall, and the outer end of the connecting support rod 25 is connected by The rod end connector is hinged to the end of the telescopic rod of the power cylinder 21, forming a lever structure therewith, and the opening, closing and flipping of the flap plate 22 are driven by the extension and contraction of the telescopic rod in the power cylinder 21; the sealing shielding curtain 23 is fixedly installed on the movable vertical side of the flap plate 22 through two plywoods, and a soft bristle structure or a strip rubber plate structure is selected, wherein the bristles are made of nylon; the free ends of the sealing shielding curtain 23 in the left door opening component and the sealing shielding curtain 23 in the right door opening component can be butted against each other in the installed closed state to form a relatively sealed state, and form a sealed cavity with the sealing protective cover 1 and the hook protection structure, thereby better forming a sealed protection for the strip-shaped transparent slot 7 on the top plate 6 of the shot blasting chamber. The sealing shielding curtain 23 of the bristle or strip rubber plate structure in the flip-cover sealing structure 2 also facilitates the passage of the I-beam 4, the catenary and the catenary hook, while ensuring a relative contact seal.
[0022] According to a further optimized technical solution, the longitudinal cross-section of the inner bottom of the sealing protective cover 1 is in an inverted eight-shaped shape that is wide at the top and narrow at the bottom. If a projectile passes through the layers of sealing components and enters the sealing protective cover 1, the projectile can be collected and cleaned.
[0023] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.
Claims
1. A sealing mechanism for a catenary stepping shot blasting machine, characterized in that: A strip-shaped transparent slot hole for a catenary hook to pass through is provided at the center of the top plate of the shot blasting chamber in the shot blasting cleaning machine. The sealing mechanism is fixedly installed above the strip-shaped transparent slot hole on the top plate of the shot blasting chamber, and comprises a sealing protective cover and a flip-type sealing structure installed at both ends of the sealing protective cover. The sealing protective cover is fixed above the top plate of the shot blasting chamber with an inverted buckle, and its two ends are open and hollow inside, and cooperate with the top plate of the shot blasting chamber to form a sealed cavity; the flip-type sealing structure is a middle split structure, comprising a left-opening door component and a right-opening door component, both of which have the same structure and are symmetrically arranged, and both include a power cylinder, a flip-up plate and a sealing shielding curtain, the flip-up plate is vertically hinged to the end of the sealing protective cover, and a connecting support rod is fixedly installed on the outer side surface of the flip-up plate, the power cylinder is installed on the outer side wall of the sealing protective cover, and the end of the telescopic rod is hinged to the connecting support rod to form a lever structure, and the sealing shielding curtain is fixedly installed on the flip-up plate, and the free ends of the two sealing shielding curtains in the left-opening door component and the right-opening door component are butted against each other to form a seal.
2. The sealing mechanism of a catenary stepping shot blasting machine according to claim 1, characterized in that: The bottom of the sealing mechanism is open and sealed above the hook protection structure. The hook protection structure is fixed on the top plate of the shot blasting chamber and includes a steel plate support and multiple groups of seals arranged at different heights. The steel plate support is fixedly installed on both sides of the strip-shaped transparent slot, and the seal is installed on the inner side of the steel plate support. From top to bottom, it includes a bristle seal, a first rubber plate seal, and a second rubber plate seal. The middle straight rod of the catenary hook passes through the middle of the bristle seal, the first rubber plate seal, and the second rubber plate seal, and the hook-shaped portion at the lower end extends into the interior of the shot blasting chamber.
3. The sealing mechanism of a catenary stepping shot blasting machine according to claim 1, characterized in that: The sealing protective cover is made of steel plates bent into a rectangular structure, and the longitudinal cross-section of its inner bottom is an inverted eight-shaped structure that is wide at the top and narrow at the bottom; a connecting through hole for an I-beam fixing to pass through is provided on the top plate of the sealing protective cover, and a sealing treatment is performed between the I-beam fixing and the connecting through hole.
4. The sealing mechanism of a catenary stepping shot blasting machine according to claim 1, characterized in that: The base of the power cylinder is hinged on the cylinder bracket, and the cylinder bracket is fixed on the outer side wall of the corresponding sealing protective cover.
5. The sealing mechanism of a catenary stepping shot blasting machine according to claim 1, characterized in that: The sealing shielding curtain is a soft bristle structure, the bristle material is nylon; or a strip rubber plate structure.