Vertical centrifugal machine safety device and vertical centrifugal machine

Abstract

The utility model provides a vertical centrifugal machine safety device and a vertical centrifugal machine. The vertical centrifugal machine safety device comprises a fixing base, a protective cover and a locking assembly. The fixed seat is fixedly arranged on the ground, and the fixed seat is a circular ring-shaped component; the protective cover is arranged at the top of the fixed seat in a covering mode, the protective cover is used for shielding the position above the centrifugal machine, and a pouring hole for avoiding the pouring barrel is formed in the protective cover; the locking assembly comprises a first lock and a second lock which can be locked with each other, the first lock is connected to the protective cover, and the second lock is connected to the fixing base. According to the safety device of the vertical centrifugal machine, the first lock and the second lock which are connected with the protective cover and fixed to the ground are arranged, the protective cover is fixed to the fixing base, the working stability of the protective cover is improved, the protective cover cannot be thrown out under stress, and the forming quality of a casting piece is guaranteed; and the molten steel can be blocked below the protective cover by the protective cover, so that the working safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of centrifuge equipment, and particularly relates to a vertical centrifuge safety device and a vertical centrifuge. Background Art

[0002] Centrifugal casting is a technique and method in which liquid metal is poured into a high-speed rotating mold, causing the molten metal to undergo centrifugal motion, filling the mold and forming the casting. When the centrifuge reaches a certain speed, molten steel is poured into the mold cavity along the runner. When the molten steel contacts the bottom cover of the mold cavity, the centrifugal force causes the molten steel to be thrown away in a parabolic pattern, forming the casting according to the dimensions of the cold mold cavity.

[0003] During the production process, the cold mold and the upper end cover will be impacted by centrifugal force. After long-term use, there is a risk that the cold mold or the end cover will be damaged and thrown out. When the cold mold or the end cover is thrown out, the poured molten steel will be thrown out. On the one hand, it causes material waste, affects the cost of use, and affects the molding quality of the casting; on the other hand, the high-temperature molten steel is highly uncontrollable when it is thrown to the outside world. It is easy to cause damage to the equipment when it is thrown onto it, and it will pose a serious threat to the work safety of employees if it is brushed near them, and may even cause safety accidents such as scalding of employees. Utility Model Content

[0004] The present invention provides a vertical centrifuge safety device and a vertical centrifuge, aiming to solve the technical problem in the prior art that the cooling mold and the end cover are easily separated by impact, which affects the molding quality of the casting and poses a threat to the work safety of employees.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] In a first aspect, a vertical centrifuge safety device is provided, comprising:

[0007] A fixing seat, fixed on the ground, wherein the fixing seat is a circular ring-shaped member;

[0008] A protective cover is provided on the top of the fixing seat and blocks the inner ring of the fixing seat. The protective cover is used to shield the centrifuge from above and has a pouring hole for avoiding the pouring barrel; and

[0009] The locking assembly comprises a first lock and a second lock which can be locked to each other, wherein the first lock is connected to the protective cover, and the second lock is connected to the fixing seat.

[0010] In combination with the first aspect, in a possible implementation, the protective cover is provided with a vertically extending insertion hole, and the locking assembly includes:

[0011] a connecting post fixedly mounted on the fixing seat and plugged into the insertion hole, the top of the connecting post protruding from the insertion hole, a through fixing hole formed on the top of the connecting post, the axis of the fixing hole being perpendicular to the axis of the connecting post, and the connecting post forming the second lock; and

[0012] A connecting rod is slidably arranged on the top of the protective cover, and the connecting rod can approach or move away from the fixing hole along the opening direction of the fixing hole. The connecting rod can be plugged into the fixing hole to limit the displacement of the protective cover in the up and down directions. The connecting rod forms the first lock.

[0013] In combination with the first aspect, in a possible implementation, a plurality of the insertion holes are provided along the circumference of the protective cover, and a plurality of the connecting columns and the connecting rods are provided corresponding to the insertion holes respectively.

[0014] In combination with the first aspect, in a possible implementation, the connecting rod is a wedge-shaped rod that is larger inside and smaller outside.

[0015] In combination with the first aspect, in a possible implementation manner, a pad is provided between the connecting rod and the protective cover.

[0016] In combination with the first aspect, in a possible implementation, a shielding ring is provided at the bottom of the protective cover corresponding to the pouring hole.

[0017] In combination with the first aspect, in a possible implementation, a plurality of locking assemblies are provided, and the plurality of locking assemblies are arranged along the circumference of the protective cover, and the locking assembly includes:

[0018] A female buckle is provided on the outer periphery of the protective cover. The bottom end of the female buckle has two first arms arranged at an angle. The inner sides of the ends of the two first arms respectively form anti-retraction hooks. A connecting space is formed between the two first arms. The female buckle forms the first lock.

[0019] A male buckle is provided on the fixing seat, and two second arms are provided at an angle on the top of the male buckle. The two second arms cooperate with the male buckle to form an arrow structure. The arrow structure extends into the connecting space and is engaged with the anti-retraction hook. The male buckle forms the second lock; and

[0020] The hot melt strip is filled in the connecting space.

[0021] In combination with the first aspect, in a possible implementation, a stepped groove is formed on the inner ring of the fixing seat, and the protective cover is plugged into and engaged with the stepped groove.

[0022] Compared with the prior art, the vertical centrifuge safety device provided by the utility model has a fixed base connected to the protective cover on the ground, the protective cover is covered on the top of the centrifuge, the first lock in the locking assembly is connected to the fixed base, and the second lock is connected to the protective cover. The first lock and the second lock are connected to fix the protective cover on the fixed base, thereby improving the working stability of the protective cover, preventing the protective cover from being thrown out when subjected to force, ensuring the molding quality of the casting, and increasing work safety; when the cold mold is damaged or thrown out, the molten steel will be blocked by the protective cover under the protective cover, posing no threat to employees, thereby increasing work safety.

[0023] In a second aspect, a vertical centrifuge is provided, comprising:

[0024] Centrifugal pit, recessed into the ground;

[0025] a centrifuge body, disposed inside the centrifugal pit, with the bottom of the centrifuge body being lower than the top of the centrifugal pit;

[0026] The vertical centrifuge safety device according to any one of the possible implementations above is sealed at the top opening of the centrifugal pit; and

[0027] A pouring cylinder, the bottom of which passes through the protective cover in the safety device of the vertical centrifuge, is used to supply molten steel to the centrifuge body.

[0028] In combination with the second aspect, in a possible implementation, a pin is provided at the bottom of the base of the vertical centrifuge safety device, and the pin is inserted and fixed to the ground.

[0029] Compared with the prior art, the vertical centrifuge safety device provided by the present invention has a fixed base connected to the protective cover on the ground, the protective cover is covered on the top of the centrifuge, the first lock in the locking assembly is connected to the fixed base, and the second lock is connected to the protective cover. The first lock and the second lock are connected to fix the protective cover on the fixed base, thereby improving the working stability of the protective cover, preventing the protective cover from being thrown out when subjected to force, ensuring the molding quality of the casting, and increasing work safety; when the cold mold is damaged or thrown out, the molten steel will be blocked under the protective cover by the protective cover, posing no threat to employees, thereby increasing work safety; in the vertical centrifuge of the present application, the protective cover is relatively fixed to the ground, and when a mechanical failure occurs, the high-temperature molten steel is completely blocked by the protective cover and will not be thrown out, thereby greatly reducing loss costs, avoiding injuries from the high-temperature molten steel, and improving use safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. 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 any creative work.

[0031] Figure 1 This is a schematic diagram of the main structure of the vertical centrifuge safety device provided in Example 1 of the present utility model;

[0032] Figure 2 for Figure 1 A partial enlarged view of middle A;

[0033] Figure 3 for Figure 1 Schematic diagram of the assembly of the fixing base and protective cover used in;

[0034] Figure 4 This is a schematic structural diagram of the locking assembly used in the second embodiment of the present utility model;

[0035] Figure 5 This is an exploded view of the assembly of the protective cover and the fixing base used in the third embodiment of the present invention.

[0036] Description of reference numerals:

[0037] 1. Fixed seat; 11. Step groove; 12. Insert nail;

[0038] 2. Protective cover; 21. Socket; 22. Casting hole; 23. Shielding ring;

[0039] 3. Locking assembly; 31. Connecting column; 311. Fixing hole; 32. Connecting rod; 33. Female buckle; 331. First arm; 332. Anti-retraction hook; 34. Male buckle; 341. Second arm; 35. Hot melt strip;

[0040] 4. Pad;

[0041] 5. Centrifuge body;

[0042] 6. Pouring tube. DETAILED DESCRIPTION

[0043] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0044] It should be noted that the terms "length", "width", "height", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "head", "tail", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model.

[0045] It should also be noted that, unless otherwise expressly specified or limited, terms such as "installed," "connected," "connect," "fixed," and "set" should be understood broadly. For example, they may refer to fixed or detachable connections, or integration; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and may encompass internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referenced. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. Furthermore, "plurality" and "several" mean two or more, unless otherwise specifically defined.

[0047] Please also refer to Figures 1 to 5 , the vertical centrifuge safety device provided by the utility model is now described. The vertical centrifuge safety device includes a fixed base 1, a protective cover 2 and a locking assembly 3. The fixed base 1 is fixed to the ground, and the fixed base 1 is a circular ring component; the protective cover 2 is covered on the top of the fixed base 1 and blocks the inner ring of the fixed base 1. The protective cover 2 is used to shield the top of the centrifuge, and the protective cover 2 has a pouring hole 22 for avoiding the pouring barrel; the locking assembly 3 includes a first lock and a second lock that can lock each other, the first lock is connected to the protective cover 2, and the second lock is connected to the fixed base 1.

[0048] It should be noted that after the first lock and the second lock are connected to each other, the protective cover 2 is limited in the up and down directions to prevent the protective cover 2 from being separated from the fixing base 1 and always remain relatively fixed to the ground.

[0049] Compared with the prior art, the vertical centrifuge safety device provided in this embodiment has a fixing base 1 connected to the protective cover 2 arranged on the ground, the protective cover 2 covers the top of the centrifuge, the first lock in the locking assembly 3 is connected to the fixing base 1, and the second lock is connected to the protective cover 2. The first lock and the second lock are connected to fix the protective cover 2 on the fixing base 1, thereby improving the working stability of the protective cover 2. The protective cover 2 will not be thrown out when subjected to force, thereby ensuring the molding quality of the casting and increasing work safety. When the cold mold is damaged or thrown out, the molten steel will be blocked by the protective cover 2 under the protective cover 2, posing no threat to employees, thereby increasing work safety.

[0050] In some embodiments, see Figure 1 and Figure 2 The protective cover 2 is provided with a socket 21 that passes through it from top to bottom, and the locking assembly 3 includes a connecting column 31 and a connecting rod 32. The connecting column 31 is fixed to the fixing base 1 and plugged into the socket 21. The top of the connecting column 31 protrudes from the socket 21. A through fixing hole 311 is formed on the top of the connecting column 31. The axis of the fixing hole 311 is perpendicular to the axis of the connecting column 31. The connecting column 31 forms a second lock; the connecting rod 32 is slidably provided on the top of the protective cover 2, and the connecting rod 32 can approach or move away from the fixing hole 311 along the opening direction of the fixing hole 311. The connecting rod 32 can be plugged into the fixing hole 311 to limit the displacement of the protective cover 2 in the up and down directions. The connecting rod 32 forms a first lock.

[0051] As an embodiment of the connection between the connecting column 31 and the fixing base 1 , a screw hole corresponding to the connecting column 31 is provided on the fixing base 1 , an external thread is provided at the bottom of the connecting column 31 , and the connecting column and the fixing base 1 are screwed together.

[0052] As another embodiment of the connection between the connecting column 31 and the fixing base 1 , the connecting column 31 is welded to the fixing base 1 .

[0053] In specific implementation, a sliding protrusion is provided on the protective cover 2, and a sliding channel is formed inside the sliding protrusion. The connecting rod 32 is slidably arranged in the sliding channel. When the connecting column 31 passes through the fixing hole 311, the connecting rod 32 slides out, so that the connecting rod 32 is plugged into the fixing hole 311.

[0054] The locking assembly 3 provided in this embodiment has two components with a simple structure. The connecting column 31 is fixed on the fixing base 1, and the connecting column 31 is plugged into the socket 21 to circumferentially position the protective cover 2 to prevent the protective cover 2 from moving or rotating in the circumferential direction due to impact; the top of the connecting column 31 is plugged into the connecting rod 32, and the connecting rod 32 is located above the protective cover 2 to limit the upper and lower positions of the protective cover 2 to prevent the protective cover 2 from moving in the axial direction. The connecting column 31 and the connecting rod 32 cooperate to limit the protective cover 2 in all directions, thereby improving the connection strength between the protective cover 2 and the fixing base 1 and ensuring the working stability of the protective cover 2.

[0055] In some embodiments, multiple sockets 21 are provided along the circumference of the protective cover 2, and multiple connecting posts 31 and connecting rods 32 are provided corresponding to the sockets 21. Providing multiple sockets 21 allows for multi-point fixation of the protective cover 2, improving connection strength, distributing the load on each locking assembly 3, and extending the service life of the locking assembly 3 as a whole.

[0056] In some embodiments, see Figure 2 The connecting rod 32 is a wedge-shaped rod that is larger inside and smaller outside. The wedge-shaped rod shape can improve the connection strength between the connecting rod 32 and the fixing hole 311. As the connecting rod 32 gradually passes through the fixing hole 311, the connection strength with the fixing hole 311 is gradually increased. The connecting rod 32 and the connecting column 31 will not easily separate, thereby improving the working stability of the protective cover 2.

[0057] It should be noted that the outer side is the end of the connecting rod 32 facing the fixing hole 311 , and the inner side is the end of the connecting rod 32 away from the fixing block 311 .

[0058] In some embodiments, see Figure 2 A pad 4 is provided between the connecting rod 32 and the protective cover 2. The pad 4 can reduce the pressure of the connecting rod 32 on the protective cover 2, preventing the protective cover 2 or the connecting rod 32 from deforming when the protective cover 2 is impacted by centrifugal force. The pad 4 can increase the contact area and protect the protective cover 2 and the connecting rod 32.

[0059] In some embodiments, see Figure 5 The bottom of the protective cover 2 is provided with a shielding ring 23 corresponding to the pouring hole 22. The shielding ring 23 can shield the molten steel and prevent the molten steel from being thrown out from the pouring hole 22.

[0060] In some embodiments, see Figure 4 There are multiple locking assemblies 3, which are arranged along the circumference of the protective cover 2. The locking assemblies 3 include a female buckle 33, a male buckle 34, and a hot melt strip 35. The female buckle 33 is arranged on the outer periphery of the protective cover 2. The bottom end of the female buckle 33 has two first arms 331 arranged at an angle. The inner sides of the ends of the two first arms 331 respectively form anti-retraction hooks 332. A connecting space is formed between the two first arms 331. The female buckle 33 forms a first lock. The male buckle 34 is arranged on the fixing base 1. The top of the male buckle 34 is provided with two second arms 341 distributed at an angle. The two second arms 341 cooperate with the male buckle 34 to form an arrow structure. The arrow structure extends into the connecting space and is buckled with the anti-retraction hook 332. The male buckle 34 forms a second lock; the hot melt strip 35 is filled in the connecting space.

[0061] It should be noted that the hot melt strip 35 melts when heated and has strong plasticity.

[0062] This embodiment provides another implementation method of the locking assembly 3, in which the male buckle 34 and the female buckle 33 are buckled with each other. Through the buckling of the arrow structure and the anti-barb 332, the protective cover 2 is limited up and down, thereby improving the connection strength between the protective cover 2 and the fixing base 1. The hot melt strip 35 is hot-melted to fill the gap between the male buckle 34 and the female buckle 33, thereby further improving the connection strength between the male buckle 34 and the female buckle 33 and ensuring the connection strength between the protective cover 2 and the fixing base 1.

[0063] In some embodiments, see Figure 5 The inner ring of the fixing base 1 is formed with a stepped groove 11, and the protective cover 2 is plugged into the stepped groove 11. The setting of the stepped groove 11 can limit the protective cover 2 in the circumferential direction and improve the connection strength between the protective cover 2 and the fixing base 1.

[0064] Based on the same inventive concept, see Figure 1 The present application further provides a vertical centrifuge, comprising a centrifugal pit, a centrifuge body 5, a vertical centrifuge safety device as described in any of the above embodiments, and a casting drum 6. The centrifugal pit is recessed in the ground; the centrifuge body 5 is disposed within the centrifugal pit, with the bottom of the centrifuge body 5 lower than the top of the centrifugal pit; the vertical centrifuge safety device seals the top opening of the centrifugal pit; the bottom of the casting drum 6 passes through the protective cover 2 of the vertical centrifuge safety device, and the casting drum 6 is used to supply molten steel to the centrifuge body 5.

[0065] Compared with the prior art, the vertical centrifuge provided in this embodiment has a fixing base 1 connected to the protective cover 2 set on the ground, the protective cover 2 covers the top of the centrifuge, the first lock in the locking assembly 3 is connected to the fixing base 1, and the second lock is connected to the protective cover 2. The first lock and the second lock are connected to fix the protective cover 2 on the fixing base 1, thereby improving the working stability of the protective cover 2. The protective cover 2 will not be thrown out when subjected to force, thereby ensuring the molding quality of the casting and increasing work safety; when the cold mold is damaged or thrown out, the molten steel will be blocked under the protective cover 2 by the protective cover 2, which will not pose a threat to employees and improve work safety; in the vertical centrifuge of the present application, the protective cover 2 is relatively fixed to the ground. In the event of a mechanical failure, the high-temperature molten steel is completely blocked by the protective cover 2 and will not be thrown out, thereby greatly reducing the loss cost, avoiding injury from the high-temperature molten steel, and improving the safety of use.

[0066] In some embodiments, see Figure 4 The bottom of the base of the vertical centrifuge safety device is provided with a pin 12, which is inserted and fixed to the ground. The bottom of the pin 12 is a pointed cone, which can improve the grip ability and improve the connection strength between the fixed base 1 and the ground.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A vertical centrifuge safety device, characterized in that: include: A fixing seat, fixed on the ground, wherein the fixing seat is a circular ring-shaped member; A protective cover is provided on the top of the fixing seat and blocks the inner ring of the fixing seat. The protective cover is used to shield the centrifuge from above and has a pouring hole for avoiding the pouring barrel. as well as The locking assembly comprises a first lock and a second lock which can be locked to each other, wherein the first lock is connected to the protective cover, and the second lock is connected to the fixing seat.

2. The vertical centrifuge safety device according to claim 1, characterized in that: The protective cover is provided with an insertion hole which passes through from top to bottom, and the locking assembly includes: a connecting post fixedly mounted on the fixing seat and plugged into the insertion hole, the top of the connecting post protruding from the insertion hole, a through fixing hole formed on the top of the connecting post, the axis of the fixing hole being perpendicular to the axis of the connecting post, and the connecting post forming the second lock; and A connecting rod is slidably arranged on the top of the protective cover, and the connecting rod can approach or move away from the fixing hole along the opening direction of the fixing hole. The connecting rod can be plugged into the fixing hole to limit the displacement of the protective cover in the up and down directions. The connecting rod forms the first lock.

3. The vertical centrifuge safety device according to claim 2, characterized in that: The insertion holes are provided in a plurality along the circumference of the protective cover, and the connecting pillars and the connecting rods are provided in a plurality corresponding to the insertion holes respectively.

4. The vertical centrifuge safety device according to claim 2, characterized in that: The connecting rod is a wedge-shaped rod with a larger inner portion and a smaller outer portion.

5. The vertical centrifuge safety device according to claim 4, characterized in that: A pad is provided between the connecting rod and the protective cover.

6. The vertical centrifuge safety device according to claim 1, characterized in that: The bottom of the protective cover is provided with a shielding ring corresponding to the pouring hole.

7. The vertical centrifuge safety device according to claim 1, characterized in that: There are multiple locking assemblies, and the multiple locking assemblies are arranged along the circumference of the protective cover. The locking assembly includes: A female buckle is provided on the outer periphery of the protective cover. The bottom end of the female buckle has two first arms arranged at an angle. The inner sides of the ends of the two first arms respectively form anti-retraction hooks. A connecting space is formed between the two first arms. The female buckle forms the first lock. A male buckle is provided on the fixing seat, and two second arms are provided at an angle on the top of the male buckle. The two second arms cooperate with the male buckle to form an arrow structure. The arrow structure extends into the connecting space and is engaged with the anti-retraction hook. The male buckle forms the second lock; and The hot melt strip is filled in the connecting space.

8. The vertical centrifuge safety device according to claim 1, characterized in that: The inner ring of the fixing seat is formed with a stepped groove, and the protective cover is plugged into and matched with the stepped groove.

9. A vertical centrifuge, characterized in that: include: Centrifugal pit, recessed into the ground; a centrifuge body, disposed inside the centrifugal pit, with the bottom of the centrifuge body being lower than the top of the centrifugal pit; The vertical centrifuge safety device according to any one of claims 1 to 8, which is sealed at the top opening of the centrifugal pit; as well as A pouring cylinder, the bottom of which passes through the protective cover in the safety device of the vertical centrifuge, is used to supply molten steel to the centrifuge body.

10. The vertical centrifuge according to claim 9, wherein The bottom of the base of the vertical centrifuge safety device is provided with a pin, and the pin is inserted and fixed on the ground.

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