Lifting appliance for feeding electrode paste of submerged arc furnace
By designing a special spreader for feeding electrode paste of mineral heat furnace, the coupling structure of the jaws and springs is used to realize automatic grabbing and release of the feeding tank, solving the problem of labor-intensive operation and insufficient safety in the prior art. Improves operational efficiency and safety.
Patent Information
- Application Number
- CN202421127679.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-05-22
AI Technical Summary
When feeding the electrode paste of existing mine hot furnaces, workers need to operate heavy driving hooks, which makes the operation difficult and prone to bumps.
A special spreader is designed, including suspending rings, screws, upper flanges, hoops, tensioning springs, safety latches, safety latch springs, center rods, jaws, reset pins and reset pin springs, through the hinge structure of jaws Cooperating with the springs, the automatic grabbing and release of the feeding tank is achieved, ensuring safety and stability during transportation.
It realizes operation automation, reduces the consumption of human resources, makes operation more convenient and fast, and ensures safety and reliability of transportation through limit locking of the mechanical structure.
Smart Images
Figure CN222204545U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tooling for submerged arc furnaces, and in particular to a hanger used for feeding electrode paste of submerged arc furnaces. Background Art
[0002] Electrode paste is a conductive material used in submerged arc furnaces. At present, most submerged arc furnaces in China use a feed tank to add electrode paste. That is, workers use a crane hook to hang the charging tank ring, and then operate the crane to lift the charging tank. However, the crane hook is large and heavy, and it is very laborious for workers to hook and unhook each time, and it is easy to bump. Summary of the invention
[0003] According to the technical problems raised above, a special hanger for an electrode paste feeding tank of an electric arc furnace is provided, thereby effectively solving the problems existing in the prior art.
[0004] The technical means adopted by the utility model are as follows:
[0005] A hanger for feeding electrode paste of a submerged arc furnace, comprising:
[0006] Lifting ring, screw, upper flange, hoop, tension spring, safety latch, safety latch spring, center rod, claw, reset pin, reset pin spring and claw mounting seat;
[0007] The claw mounting seat is connected to the upper flange by screws;
[0008] The upper part of the claw mounting seat is hollow, and a center rod is installed inside;
[0009] A tension spring is provided between the center rod and the upper flange;
[0010] An inclined notch is provided at the lower part of the center rod, and a safety pin with a safety pin spring is transversely arranged on the inclined position of the claw mounting seat; a hoop is installed on the outer edge of the upper part of the claw mounting seat, and the hoop slides along the outer wall of the claw mounting seat to "lock" and "unlock" the opening and closing rotation movement of the claw; the claw is hinged at the bottom of the claw mounting seat; a reset pin and a reset pin spring sleeved on the reset pin are transversely arranged on the inner side surface of the bottom of the claw mounting seat that fits the claw; the protruding end of the reset pin directly contacts the preset groove inside the claw.
[0011] The hoop is a cylindrical structure with an open bottom, and the hoop can limit the closed claws in the inner cavity of the hoop when it moves downward.
[0012] The head of the safety pin that contacts the inclined surface is a ball head.
[0013] The protruding end head of the reset pin is a ball head.
[0014] The number of the above-mentioned claws is greater than or equal to 2, each claw is an "F"-shaped claw, the tip of the upper protrusion is wedge-shaped, and a groove for embedding the tip of the upper protrusion of the claw is radially processed around the part of the rod body extending from the lower end of the claw mounting seat.
[0015] The number of the grooves is consistent with the number of the claws and is evenly distributed along the circumference.
[0016] The lower part of the clamping jaw mounting seat is processed with a conical hole matched with the external cam push rod. When the external cam push rod drives the clamping jaw to close, the outer conical surface of the external cam push rod is aligned with the inner conical surface of the lower part of the clamping jaw mounting seat.
[0017] In the utility model adopting the above technical solution, when the sling does not grab the core rod of the feeding tank, the claws are always kept in an open state due to the action of the internal reset pin, so that the hoop is always on the top of the claw mounting seat and cannot fall; the tip of the upper convex part of the claw is embedded in the groove at the lower end of the claw mounting seat. When the top of the core rod of the feeding tank is inserted into the bottom of the claw mounting seat, the top of the core rod will push the claw to rotate around the hinge shaft with the claw mounting seat. The claw further contracts, and the bottom of the claw (the lower end convex part) clamps the annular groove at the top of the core rod of the feeding tank. The hoop further falls due to its own weight, thereby wrapping the claw and compressing the reset pin spring, so that the reset pin cannot drive the claw back to its position. The overhead crane further lifts the lifting ring to drive the center rod to move upward, thereby compressing the tensioning spring, further driving the safety latch to extend and compressing the safety latch spring. The safety latch extends to prevent the hoop from being unable to return to its position, thereby achieving safety and stability during transportation.
[0018] When the sling releases the core rod of the feeding tank, it is necessary to release the tension spring first. The tension spring drives the center rod back to its position, thereby releasing the safety latch spring, and finally retracting the safety latch into the inside of the claw mounting seat. Then it is necessary to rely on the special mechanism on the feeding tank to push the hoop sleeve so that the hoop sleeve moves upward. This releases the reset pin spring and drives the claw mounting seat to detach from the top conical surface of the external feeding tank core rod, so that the tip of the upper convex part of the claw is free from the "cam" restriction. At this time, the reset pin spring pushes the reset pin, thereby driving the claw to rotate, and finally the claw releases the core rod of the feeding tank.
[0019] Compared with the prior art, the utility model has the following advantages:
[0020] 1. The whole action is completed automatically, the operation is convenient and fast, and human resources are saved.
[0021] 2. Mechanical structure limit locking, safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.
[0023] Figure 1 The present invention is a schematic diagram of the structure of a hanger used for feeding electrode paste to an electric arc furnace.
[0024] Figure 2 The figure is a schematic diagram of the internal structure of a hanger used for feeding electrode paste to an electric arc furnace.
[0025] Figure 3 The figure is a working principle diagram of a hanger used for feeding electrode paste into an electric arc furnace.
[0026] In the figure: 1-lifting ring, 2-screw, 3-upper flange, 4-hoop, 5-tensioning spring, 6-safety latch, 7-safety latch spring, 8-center rod, 9-claw, 10-reset pin, 11-reset pin spring, 12-claw mounting seat. DETAILED DESCRIPTION
[0027] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments of the present invention can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.
[0028] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0029] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the utility model. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.
[0030] Unless otherwise specifically stated, the relative arrangement of the parts and steps described in these embodiments, the numerical expressions and numerical values do not limit the scope of the utility model. At the same time, it should be clear that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.
[0031] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present utility model: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.
[0032] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below their position devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.
[0033] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.
[0034] like Figures 1 to 3 As shown, the utility model provides a hanger for feeding electrode paste of a submerged arc furnace, comprising:
[0035] Lifting ring 1, screw 2, upper flange 3, hoop 4, tension spring 5, safety latch 6, safety latch spring 7, center rod 8, claw 9, reset pin 10, reset pin spring 11 and claw mounting seat 12;
[0036] The claw mounting seat 12 is connected to the upper flange 3 by screws 2;
[0037] The upper part of the claw mounting seat 12 is hollow, and the center rod 8 is installed inside;
[0038] A tension spring 5 is provided between the center rod 8 and the upper flange 3;
[0039] An inclined notch is provided at the lower part of the center rod 8, and a safety latch 6 with a safety latch spring 7 is transversely arranged on the inclined position of the claw mounting seat 12; a hoop 4 is installed on the outer edge of the upper part of the claw mounting seat 12, and the hoop 4 slides along the outer wall of the claw mounting seat 12 to "lock" and "unlock" the opening and closing rotational movement of the claw 9; the claw 9 is hinged at the bottom of the claw mounting seat 12; a reset pin 10 and a reset pin spring 11 sleeved on the reset pin 10 are transversely arranged on the inner side surface of the bottom of the claw mounting seat 12 that is in contact with the claw 9; the protruding end of the reset pin 10 directly contacts the preset groove inside the claw 9.
[0040] The hoop 4 is a cylindrical structure with an open bottom. The hoop 4 can limit the closed claws in the inner cavity of the hoop 4 when it moves downward.
[0041] The head of the safety pin 6 that contacts the inclined surface is a ball head.
[0042] The protruding end of the reset pin 10 is a ball head.
[0043] The number of the above-mentioned claws 9 is greater than or equal to 2, each claw 9 is an "F"-shaped claw, the tip of the upper protrusion is wedge-shaped, and a groove for embedding the tip of the upper protrusion of the claw 9 is radially processed around the part of the rod body extending from the lower end of the claw mounting seat 12.
[0044] The number of the grooves is consistent with the number of the claws 9 and is evenly distributed along the circumference.
[0045] In the utility model adopting the above technical solution, when the lifting device does not grab the core rod of the feeding tank, the claw 9 is always kept in an open state due to the action of the internal reset pin 10, so that the hoop 4 is always on the top of the claw mounting seat 12 and cannot fall; the tip of the upper convex part of the claw 9 is embedded in the groove at the lower end of the claw mounting seat 12. When the top of the core rod of the feeding tank is inserted into the bottom of the claw mounting seat 12, the top of the core rod will push the claw 9 to rotate around the hinged rotating shaft with the claw mounting seat 12. Further, the claw 9 shrinks, and the bottom (lower end convex part) of the claw 9 clamps the annular groove at the top of the core rod of the feeding tank. Further, the hoop 4 falls due to its own weight, thereby wrapping the claw 9 and compressing the reset pin spring 11, so that the reset pin 10 cannot drive the claw 9 to return. Further, the overhead crane lifts the lifting ring 1 to drive the center rod 8 to move upward, thereby compressing the tensioning spring 5, further driving the safety latch 6 to extend and compress the safety latch spring 7. The safety latch 6 extends to prevent the hoop 4 from returning to its position, achieving safety and stability during transportation.
[0046] When the sling releases the core rod of the feeding tank, it is necessary to release the tension spring 5 first. The tension spring 5 drives the center rod 8 to return to its position, thereby releasing the safety latch spring 7, and finally retracting the safety latch 6 into the claw mounting seat 12. Then it is necessary to rely on the special mechanism on the feeding tank to push the hoop 4 so that the hoop 4 moves upward. Thereby releasing the reset pin spring 11, and at the same time driving the claw mounting seat 12 to disengage from the top conical surface of the external feeding tank core rod, so that the top convex tip of the claw 9 is freed from the "cam" restriction. At this time, the reset pin spring 11 pushes the reset pin 10, thereby driving the claw 9 to rotate, and finally the claw 9 releases the core rod of the feeding tank.
[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. A hanger for feeding electrode paste into a submerged arc furnace. It is characterized in that include: A lifting ring (1), a screw (2), an upper flange (3), a hoop (4), a tension spring (5), a safety latch (6), a safety latch spring (7), a center rod (8), a claw (9), a reset pin (10), a reset pin spring (11) and a claw mounting seat (12); The claw mounting seat (12) and the upper flange (3) are connected by screws (2); The upper part of the claw mounting seat (12) is hollow, and the center rod (8) is installed inside; A tension spring (5) is provided between the center rod (8) and the upper flange (3); The lower part of the center rod (8) is provided with an inclined notch, and a safety latch (6) with a safety latch spring (7) is transversely arranged at the inclined position of the claw mounting seat (12); a hoop (4) is installed on the outer edge of the upper part of the claw mounting seat (12), and the hoop (4) slides along the outer wall of the claw mounting seat (12) to "lock" and "unlock" the opening and closing rotation movement of the claw (9); the claw (9) is hinged at the bottom of the claw mounting seat (12); a reset pin (10) and a reset pin spring (11) with a reset pin (10) are transversely arranged on the inner side surface of the bottom of the claw mounting seat (12) that is in contact with the claw (9); the protruding end of the reset pin (10) directly contacts with a groove preset inside the claw (9).
2. A hanger for feeding electrode paste to a submerged arc furnace according to claim 1, It is characterized in that The hoop (4) is a cylindrical structure with an open bottom. When the hoop (4) moves downward, the closed claws can be confined in the inner cavity of the hoop (4).
3. A hanger for feeding electrode paste to a submerged arc furnace according to claim 1 or 2, It is characterized in that The head of the safety latch (6) in contact with the inclined surface is a ball head.
4. A hanger for feeding electrode paste to a submerged arc furnace according to claim 3, It is characterized in that The protruding end head of the reset pin (10) is a ball head.
5. A hanger for feeding electrode paste to a submerged arc furnace according to claim 1 or 2, It is characterized in that The number of the above-mentioned claws (9) is greater than or equal to 2, and each claw (9) is an "F"-shaped claw, the tip of the upper protrusion is wedge-shaped, and a groove for embedding the tip of the upper protrusion of the claw (9) is radially processed around the part of the rod body extending from the lower end of the claw mounting seat (12).
6. A sling for feeding electrode paste to a submerged arc furnace according to claim 5, It is characterized in that The number of the grooves is consistent with the number of the claws (9) and is evenly distributed along the circumference.
7. A sling for feeding electrode paste to a submerged arc furnace according to claim 5, It is characterized in that The lower part of the clamping claw mounting seat (12) is processed with a conical hole matched with the external cam push rod. When the external cam push rod drives the clamping claw (9) to close, the outer conical surface of the external cam push rod is aligned with the inner conical surface of the lower part of the clamping claw mounting seat (12).