Roasting crown block clamp
By designing multiple claw nail assemblies on the calcining crane clamp and adjusting their length using adjusting screws and nuts, combined with an adjustable clamping plate structure, the problems of charcoal block wear and model compatibility caused by excessive center distance of the claw nails in the existing calcining crane clamping arms are solved, achieving more stable charcoal block clamping and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUNNAN YUANXIN CARBON CO LTD
- Filing Date
- 2025-04-17
- Publication Date
- 2026-04-24
AI Technical Summary
The center distance of the claw pins on the existing roasting crane clamp arm is too large, resulting in a small contact area for the charcoal blocks, which makes them prone to wear and difficult to adapt to the clamping requirements of different types of charcoal blocks, posing a safety hazard.
A calcination crane clamp is designed, which uses multiple claw nail assemblies evenly distributed on the clamping plate. The length of the claw nails can be adjusted by adjusting the screw and nut. Combined with an adjustable second clamping plate structure, the claw nail assemblies are ensured to be on the same plane, which can adapt to the clamping requirements of different types of charcoal blocks.
It improves clamping strength and wear resistance, avoids damage to carbon blocks, ensures stable clamping of different types of carbon blocks, and reduces usage costs.
Smart Images
Figure CN224163006U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of charcoal block clamping devices, and in particular relates to a calcination crane clamp. Background Technology
[0002] like Figure 1 As shown, the existing roasting crane clamp arm 1 uses four independent claw nails 3, which have the following problems: small contact area, large center distance between the four independent claw nails 3, low strength of the independent claw nails, and serious wear after long-term use. Due to severe deformation of the furnace wall or irregular coking of the char blocks, char blocks may be damaged or fall off, which poses a serious threat to equipment and personal and property safety.
[0003] The center distance between the claws on the existing multi-functional overhead crane clamp is too large, which easily causes the charcoal blocks to be clamped at the right-angled edges, resulting in waste blocks. In particular, when using the same clamp for different models and sizes of charcoal blocks, the clamping position between the claws and the charcoal blocks can easily change, leading to the charcoal blocks being clamped at the right-angled edges and resulting in waste blocks.
[0004] Secondly, the existing clamps have a small number of clamps and a small force-bearing area, which occasionally causes carbon blocks to fall off; the existing clamps have low strength, poor wear resistance, and short service life. Utility Model Content
[0005] In view of the technical problems existing in the background art, the present invention provides a calcination crane clamp.
[0006] To achieve the above objectives, the technical solution provided by this utility model is as follows:
[0007] A calcining crane clamp includes a first clamping plate, on which a plurality of claw nail assemblies are evenly distributed. Each claw nail assembly includes a claw nail body and an adjusting nut. An adjusting screw is provided on one side of the claw nail body, and an adjusting nut is fitted on the adjusting screw. A plurality of first threaded holes are provided on the first clamping plate, and the adjusting screw is threaded into the first threaded holes, with the adjusting nut tightly attached to the first clamping plate.
[0008] Optionally, the claw nail body and the adjusting screw are integrally made of cemented carbide.
[0009] Optionally, the claw nail body includes a limiting ring and a cone head disposed at one end of the limiting ring. The cone head has an installation groove, and a nail head is disposed in the installation groove. The claw nail body is made of 45 steel, and the nail head is made of hard alloy.
[0010] Optionally, the roasting crane clamp includes a crane clamp arm, the bottom end of which is provided with a pin, and vertical plates are rotatably connected to both sides of the pin. The vertical plates are connected to a first clamping plate through a first bolt assembly.
[0011] Optionally, the first clamping plate has an installation groove on its upper side, and sliding grooves are provided through both sides of the installation groove. A second clamping plate is slidably disposed in the installation groove. L-shaped sliders are provided on both sides of the second clamping plate, and the sliders are slidably disposed in the sliding grooves. Several claw nail assemblies are evenly distributed on the second clamping plate.
[0012] Optionally, the slider is provided with a plurality of second threaded holes, and a plurality of first through holes are symmetrically provided on both sides of the second clamping plate. The first through holes are aligned with the second threaded holes, and adjusting screws are provided in the second threaded holes and the first through holes.
[0013] Optionally, a sliding plate is provided in the mounting groove, and the sliding plate is fixed to the first clamping plate by welding.
[0014] Optionally, the distance between two adjacent claw screw assemblies on the first clamp is greater than the distance between two adjacent claw screw assemblies on the second clamp.
[0015] Optionally, the second clamping plate is evenly distributed with a plurality of third threaded holes, and the claw pin assembly is threadedly connected in the third threaded holes.
[0016] This utility model has the following advantages and beneficial effects:
[0017] This utility model provides a calcination crane clamp, including a first clamping plate, with a plurality of claw nail assemblies evenly distributed on the first clamping plate. Multiple claw nail assemblies are evenly distributed throughout the clamping plate, which solves the defects of the prior art where the center distance between each clamp nail is too large, causing damage to the charcoal block when clamping the edge, and the small contact area of the clamp nails, resulting in insufficient clamping force and causing the block to fall off.
[0018] Secondly, the claw assembly includes a claw body and an adjusting nut. An adjusting screw is provided on one side of the claw body. By using the adjusting screw and the adjusting nut, the extension length of the claw assembly can be adjusted to compensate for the wear of the clamps during use. It can also periodically adjust all the clamps to the same plane according to the different wear levels of each clamp to ensure the reliability of its clamping of the carbon block. Attached Figure Description
[0019] Figure 1 A structural diagram of the existing technology for using four independent claw pins in the clamping arm of a roasting crane;
[0020] Figure 2 This is a diagram showing the connection structure of the calcining crane clamp arm and the vertical plate in this utility model;
[0021] Figure 3 This is a structural diagram of the calcination crane clamp in this utility model;
[0022] Figure 4 for Figure 1 The left view;
[0023] Figure 5 This is a front view of the first clamping plate and the claw nail assembly in this utility model;
[0024] Figure 6 This is a side view of the first clamping plate and the claw nail assembly in this utility model;
[0025] Figure 7 This is a front view of the claw nail assembly in this utility model;
[0026] Figure 8 This is a first structural cross-sectional view of the claw nail assembly in this utility model;
[0027] Figure 9 This is a second structural cross-sectional view of the claw nail assembly in this utility model;
[0028] Figure 10 This is one of the connection structure diagrams of the first clamping plate and the second clamping plate in this utility model;
[0029] Figure 11 This is the second connection structure diagram of the first clamping plate and the second clamping plate in this utility model;
[0030] Figure 12 for Figure 10 Front view;
[0031] Figure 13 for Figure 12 The left view;
[0032] Figure 14 for Figure 13 The left view.
[0033] Reference numerals: 1-Heavy crane clamp arm, 11-Pin shaft, 2-Vertical plate, 21-Independent claw nail, 22-First connecting hole, 3-First clamping plate, 31-Second connecting hole, 32-First threaded hole, 33-Mounting groove, 34-Slide groove, 4-Claw nail assembly, 41-Claw nail body, 411-Limiting ring, 412-Cone head, 413-Nail head, 42-Adjusting nut, 43-Adjusting screw, 431-Mounting hole, 5-First bolt assembly, 51-First nut, 6-Slide plate, 61-First through hole, 62-Adjusting screw, 7-Second clamping plate, 71-Slider. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some embodiments of this utility model, but not all embodiments.
[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0036] Example 1
[0037] like Figures 1-9 As shown, a calcining crane clamp includes a first clamping plate 3, on which a plurality of claw nail assemblies 4 are evenly distributed. Each claw nail assembly 4 includes a claw nail body 41 and an adjusting nut 42. An adjusting screw 43 is provided on one side of the claw nail body 41, and the adjusting nut 42 is fitted on the adjusting screw 43. A plurality of first threaded holes 32 are provided on the first clamping plate 3. The adjusting screw 43 is threaded into the first threaded holes 32, and the adjusting nut 42 is set close to the first clamping plate 3.
[0038] In this invention, a number of claw nail assemblies 4 are evenly distributed on the first clamping plate 3, thus solving the defects in the prior art where the center distance between each nail is too large, causing damage to the carbon block when it is clamped to the edge, and the small contact area of the nails results in insufficient clamping force, causing the block to fall off.
[0039] Secondly, the claw assembly 4 includes a claw body 41 and an adjusting nut 42. An adjusting screw 43 is provided on one side of the claw body 41. The extension length of the claw assembly 4 can be adjusted by using the adjusting screw 43 and the adjusting nut 42 to compensate for the wear of the claw body 41 during use. It can also periodically adjust all the claw assemblies 4 to the same plane according to the different wear levels of each claw body 41 to ensure the reliability of its clamping of the carbon block.
[0040] like Figure 9 As shown, in a preferred embodiment of the utility model, the claw nail body 41 and the adjusting screw 43 are integrally made of cemented carbide to ensure the service life of the clamping mechanism. Cemented carbide is a composite material known for its high hardness and high wear resistance. It consists of refractory metal carbides (such as tungsten carbide, titanium carbide, etc.) as the hard phase and metals such as cobalt and nickel as the binder phase, and is manufactured through powder metallurgy.
[0041] like Figure 8As shown, in another preferred embodiment of the utility model, the claw nail body 41 includes a limiting ring 411 and a cone head 412 disposed at one end of the limiting ring 411. An adjusting screw 43 is integrally connected to one side of the limiting ring 411. A mounting hole 431 is formed in the cone head 412, and a nail head 413 is disposed in the mounting hole 431. The nail head 413 can be threaded into the mounting hole 431 or inserted into the mounting hole 431 and then welded for fixation. The conical surfaces of the cone head 412 and the nail head 413 are smoothly connected. The claw nail body 41 is made of 45 steel, which can reduce the cost of use, and the nail head 413 is made of hard alloy to ensure wear resistance.
[0042] In this utility model, by designing the structure of the claw nail body 41, a cone head 412 is made by drilling a hole in 45 steel and a nail head 413 made of hard alloy is inlaid. This structure can further optimize the claw nail body 41. By combining different materials, the clamping strength and wear resistance of the claw nail body 41 can be guaranteed, while the use of hard alloy can be reduced, thereby reducing costs.
[0043] like Figures 1-9 As shown, in this utility model, the roasting crane clamp also includes a crane clamp arm 1. The bottom end of the crane clamp arm 1 is provided with a pin shaft 11. Vertical plates 2 are rotatably connected to both sides of the pin shaft 11. The vertical plates 2 are connected to the first clamping plate 3 through the first bolt assembly 5.
[0044] Specifically, the vertical plate 2 has first connecting holes 22 on its upper and lower sides, and the first clamping plate 3 has four second connecting holes 31 around its perimeter. When the first clamping plate 3 is attached to the vertical plate 2, the first connecting holes 22 and the second connecting holes 31 are aligned, the first bolt assembly 5 is inserted, and the first nut 51 is tightened to fix it.
[0045] Example 2
[0046] like Figure 1 As shown, setting fewer independent claw studs 21 can save materials and simplify the clamping structure, but the clamping area is small and the clamping force is weak, which seriously affects the clamping effect.
[0047] like Figure 3 , Figure 4 As shown, however, by setting multiple claw components 4, a tighter and more reliable clamping can be achieved for the charcoal block, significantly increasing the clamping area and ensuring the clamping effect. However, when dealing with different models of charcoal blocks, if the external dimensions of the charcoal blocks change, using the same clamp may result in a reduced clamping effect. When the bottom claw components 4 are aligned with the charcoal block, some of the upper claw components 4 may clamp the upper side, corners, or other parts of the charcoal block, potentially damaging it. Therefore, different models of charcoal blocks require clamps of corresponding sizes, which undoubtedly increases the cost of use.
[0048] To address the aforementioned shortcomings, this embodiment further optimizes the design.
[0049] like Figures 10-14 As shown, the upper side of the first clamping plate 3 is provided with an installation groove 33, and the two sides of the installation groove 33 are provided with sliding grooves 34. The second clamping plate 7 is slidably arranged in the installation groove 33. The two sides of the second clamping plate 7 are respectively provided with L-shaped sliders 71. The sliders 71 are slidably arranged in the sliding grooves 34, and the other end of the sliders 71 slides close to the side wall of the second clamping plate 7. Several claw nail assemblies 4 are evenly distributed on the second clamping plate 7.
[0050] This structure utilizes multiple fixed claw spike assemblies 4 (located on the first clamping plate 3) and multiple adjustable claw spike assemblies 4 (located on the second clamping plate 7). The height of the upper claw spike assembly 4 can be adjusted to accommodate different types of charcoal blocks. This ensures that the position of the second clamping plate 7 can be precisely adjusted when clamping different types of charcoal blocks, guaranteeing accurate clamping of the charcoal blocks by the claw spike assemblies 4 and preventing clamping at the edges or corners of the charcoal blocks. This structure can clamp different types of charcoal blocks, ensuring clamping force while avoiding damage to the charcoal blocks.
[0051] Furthermore, the slider 71 has several second threaded holes, and the second clamping plate 7 has several first through holes 61 symmetrically arranged on both sides. The first through holes 61 are aligned with the second threaded holes, and adjusting screws 62 are installed in the second threaded holes and the first through holes 61. After the position of the second clamping plate 7 is adjusted, it is fixed by adjusting screws 62. This structure facilitates the adjustment and fixing of the position of the second clamping plate 7.
[0052] Furthermore, a sliding plate 6 is located between the two sliding grooves 34. The sliding plate 6 can be manufactured integrally with the first clamping plate 3. Alternatively, the sliding plate 6 can be manufactured separately and set in the mounting groove 33. The sliding plate 6 is fixed to the first clamping plate 3 by welding or by bolts or other means.
[0053] In this invention, the distance between two adjacent claw nail assemblies 4 on the first clamping plate 3 is greater than the distance between two adjacent claw nail assemblies 4 on the second clamping plate 7. The claw nail assemblies 4 on the second clamping plate 7 are more densely arranged, and the height of the second clamping plate 7 is smaller, only clamping the uppermost part of the charcoal block, while the clamping height of the first clamping plate 3 is larger, allowing clamping of most of the charcoal block. This adjustable clamping plate structure, while ensuring that the multiple claw nail assemblies 4 are evenly distributed as much as possible, ensures that the charcoal block is not damaged due to being clamped at its edges during the clamping process, while also ensuring the clamping area and clamping force.
[0054] Furthermore, the second clamping plate 7 is evenly distributed with several third threaded holes, and the claw nail assembly 4 is threaded into the third threaded holes to achieve a detachable connection.
[0055] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A calcining crane clamp, characterized in that: The device includes a first clamping plate, on which a plurality of claw nail assemblies are evenly distributed. Each claw nail assembly includes a claw nail body and an adjusting nut. An adjusting screw is provided on one side of the claw nail body, and an adjusting nut is fitted on the adjusting screw. A plurality of first threaded holes are provided on the first clamping plate, and the adjusting screw is threaded into the first threaded holes, with the adjusting nut tightly attached to the first clamping plate.
2. The calcining crane clamp according to claim 1, characterized in that: The claw nail body and the adjusting screw are made of cemented carbide.
3. The calcining crane clamp according to claim 1, characterized in that: The claw nail body includes a limiting ring and a cone head disposed at one end of the limiting ring. The cone head has an installation groove, and a nail head is disposed in the installation groove. The claw nail body is made of 45 steel, and the nail head is made of hard alloy.
4. The calcining crane clamp according to claim 1, characterized in that: The device includes a crane clamp arm, with a pin at the bottom end of the clamp arm. Vertical plates are rotatably connected to both sides of the pin, and the vertical plates are connected to a first clamping plate via a first bolt assembly.
5. The calcining crane clamp according to claim 1, characterized in that: The first clamping plate has an installation groove on its upper side, and sliding grooves are provided through both sides of the installation groove. The second clamping plate is slidably arranged in the installation groove. L-shaped sliders are provided on both sides of the second clamping plate and are slidably arranged in the sliding grooves. Several claw nail assemblies are evenly distributed on the second clamping plate.
6. The calcining crane clamp according to claim 5, characterized in that: The slider has several second threaded holes, and the second clamping plate has several first through holes symmetrically opened on both sides. The first through holes are aligned with the second threaded holes, and adjusting screws are provided in the second threaded holes and the first through holes.
7. The calcining crane clamp according to claim 5, characterized in that: A sliding plate is provided in the mounting slot, and the sliding plate is fixed to the first clamping plate by welding.
8. The calcining crane clamp according to claim 5, characterized in that: The distance between two adjacent claw screw assemblies on the first clamp is greater than the distance between two adjacent claw screw assemblies on the second clamp.
9. The calcining crane clamp according to claim 5, characterized in that: The second clamping plate is evenly distributed with several third threaded holes, and the claw nail assembly is threadedly connected to the third threaded holes.