Combined anchoring part not prone to damage refractory material
By designing the relative fixation and movable stress release mechanism between the anchor body and the fixed base of the combined anchor, the stress failure problem caused by thermal expansion of the anchors for cement kilns is solved, and a high-strength anchoring effect is achieved.
Patent Information
- Application Number
- CN202422360524.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-27
- Publication Date
- 2025-07-29
- Estimated Expiration
- 2034-09-27
AI Technical Summary
The existing anchors for cement kilns are damaged by thermal expansion at high temperatures, and the point contact during welding can easily lead to low strength, making it difficult to connect with the steel plate stably.
A combined anchor is designed, including an anchor body and a fixed base. The anchor body is divided into two parts to form an angle α, which is relatively fixed to the fixed base through spot welding connection. During welding, the surface contact increases strength and can move to release stress at high temperatures.
The connection strength between the anchor and the steel plate is improved, the refractory material is avoided cracking or falling off, and the stress changes in high temperature environments are adapted.
Smart Images
Figure CN223165932U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of anchor fittings, and particularly relates to a combined anchor fitting that is not easily damaged to refractory materials. Background Art
[0002] The existing anchor fittings for cement kilns are fixed on the steel plate foundation of the cement kiln by welding. They cannot move relative to the steel plate foundation itself. After the castable of the cement kiln is cast, they have a good anchoring effect on the castable to prevent the castable from detaching. However, the castable will undergo thermal expansion at high temperatures in the cement kiln, and the anchor pins cannot move relative to each other. At high temperatures, destructive stress will be generated between the castable and the anchor pins, causing stress failure of the castable. Moreover, most of the existing anchor fittings are Y-shaped or V-shaped, and there is often point contact between the anchor fittings and the steel plate, resulting in problems such as difficulty in pre-positioning during welding and low strength during use. Summary of the Utility Model
[0003] In view of this, in order to solve the problems existing in the prior art, the purpose of the utility model is to provide a combined anchor fitting that is not easily damaged to refractory materials, having the effects of not easily damaging the stress of refractory materials, being convenient for welding with steel plates, and having higher anchoring strength.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:
[0005] A combined anchor fitting that is not easily damaged to refractory materials, including: an anchor pin body and a fixed base. An installation hole is provided on the fixed base. The anchor pin body includes a first part and a second part. The lower end of the first part is connected to the lower end of the second part and installed in the installation hole. The first part and the second part are respectively located on both sides of the fixed base. The upper ends of the first part and the second part extend in directions away from each other, and an included angle α is formed between the first part and the second part.
[0006] The specific technical effect is: by providing a fixed base, when welding this anchor fitting, there is a larger contact area, changing from point contact to surface contact, which is also convenient for full welding to improve the connection strength with the steel plate, thereby reducing the problem of the anchor solid falling off; before pouring the refractory material, by connecting the lower end of the anchor pin body with the installation hole for relative fixation, it is convenient for pouring the refractory material. During the use of the cement kiln, if this anchor fitting is applied to a place with greater stress, the connection between the lower end of the anchor pin body and the installation hole of the refractory material can be broken, thereby releasing stress, so as to ensure that the anchor pin body will not squeeze and crack the refractory material when being extruded, or the fixed base will not fall off the steel plate.
[0007] Furthermore, the connection between the first part and the second part is spot welded to the inner wall of the installation hole.
[0008] The specific technical effect is as follows: By using spot welding connection, the relative fixation between the anchor body and the fixed base can be maintained before the refractory material is poured. When being extruded, the spot welding part is broken, playing a role in stress release, so that the anchor body is in a movable state, and thus the refractory material will not be extruded and cracked due to extrusion, or the fixed base will not be extruded and detached from the steel plate.
[0009] Further, a bent section is provided in the middle of the first part, and a bent section is also provided in the middle of the second part. The bending direction of the bent section of the first part is opposite to that of the bent section of the second part.
[0010] Further, multiple interconnected bent sections are provided in the middle of the first part, and the bending directions between adjacent two bent sections are opposite to each other. Multiple interconnected bent sections are also provided in the middle of the second part. The second part and the first part are symmetrically arranged about the center of the mounting hole.
[0011] The specific technical effect is as follows: The multiple interconnected bent sections form a corrugated shape. With this design, the combination between the first part and the second part and the refractory material is better, increasing the holding force of the anchor body. Moreover, the bending directions between adjacent two bent sections are opposite to each other and the second part and the first part are symmetrically arranged about the center of the mounting hole, making the stress center of the whole anchor body more uniform.
[0012] Further, the fixed base is arranged in a cuboid structure, and a rectangular welding surface is formed at one end of the fixed base opposite to the opening direction of the anchor body.
[0013] The specific technical effect is as follows: The fixed base is in a cuboid shape, which provides a larger contact area when welding the anchor fastener, and is also convenient for full welding to improve the connection strength with the steel plate, thus reducing the problem of the anchor body falling off.
[0014] Further, the projected distances of the first part and the second part in the vertical direction are both 10 cm.
[0015] The specific technical effect is as follows: The lengths of the first part and the second part are equal, making the stress center of the whole anchor body more uniform. And with the design of 10 cm, it is more suitable for refractory materials with not particularly thick thickness.
[0016] Further, the range of the included angle α is 60° - 75°.
[0017] The specific technical effect is as follows: With the included angle α designed within this range, it neither affects the movement of the anchor body in the mounting hole nor ensures the combination between the first part and the second part and the refractory material.
[0018] Further, the inner contour dimension of the installation hole is larger than the outer contour dimension of the connection between the first part and the second part.
[0019] The specific technical effect is that with this design, after the anchor body detaches from the fixed base, it can move freely within the installation hole.
[0020] Further, plastic caps are sleeved on the upper ends of both the first part and the second part.
[0021] Further, there are expansion gaps between the inner top ends of the plastic caps and the upper end faces of both the first part and the second part.
[0022] The specific technical effect is that by sleeving plastic caps on the upper ends of the first part and the second part, and there are expansion gaps between the inner top ends of the plastic caps and the upper end faces, when the high temperature during the operation of the cement kiln melts the plastic caps, gaps for the anchor body to expand and contract will be formed within the refractory material. Thus, when the anchor body expands and contracts along the length direction due to heat, it is not easy to cause stress damage to the refractory material.
[0023] The beneficial effects of the present utility model are as follows:
[0024] (1) By providing a fixed base, a larger contact area is obtained during the welding of the anchor, changing from point contact to surface contact, which also facilitates full welding to improve the connection strength with the steel plate, thereby reducing the problem of the anchor body falling off.
[0025] (2) Before pouring the refractory material, by relatively fixing the lower end of the anchor body to the installation hole, it is convenient for pouring the refractory material. During the use of the cement kiln, if this anchor is applied to places with greater stress, the connection between the lower end of the anchor body and the installation hole can be broken by the refractory material, thereby releasing stress, ensuring that when the anchor body is squeezed, it will not squeeze the refractory material to crack or cause the fixed base to fall off the steel plate.
[0026] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following specifically provides preferred embodiments and, in conjunction with the accompanying drawings, detailed descriptions are as follows. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0028] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model;
[0029] Figure 2 is Figure 1 the front view of;
[0030] Figure 3 is the structural schematic diagram of Embodiment 2 of the present utility model;
[0031] Figure 4 is Figure 3 the front view of;
[0032] Figure 5 is Figure 4 the cross-sectional view at A-A in;
[0033] In the figure:
[0034] 1. Anchor body; 2. Fixed base; 3. Mounting hole; 4. First part; 5. Second part; 6. Bending section; 7. Rectangular welding surface; 8. Plastic cap; 9. Expansion gap; 10. Welding point area. Specific implementation manners
[0035] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.
[0036] Embodiment 1:
[0037] As Figures 1 to 2 shown, a combined anchor for refractory materials that is not easily damaged, including an anchor body 1 and a fixed base 2. The fixed base 2 is provided with a mounting hole 3. The anchor body 1 includes a first part 4 and a second part 5. The lower end of the first part 4 is connected to the lower end of the second part 5 and installed in the mounting hole 3. The first part 4 and the second part 5 are respectively located on both sides of the fixed base 2. The upper ends of the first part 4 and the second part 5 extend in directions away from each other, and an included angle α is formed between the first part 4 and the second part 5.
[0038] It should be noted here that by setting the fixed base 2, a larger contact area is obtained during the welding of the anchor, changing from point contact to surface contact, which also facilitates full welding to improve the connection strength with the steel plate, thereby reducing the problem of the anchor falling off; before the refractory material is poured, the lower end of the anchor body 1 is connected to the installation hole 3 for relative fixation, facilitating the pouring of the refractory material. During the use of the cement kiln, if this anchor is applied to a place with greater stress, the connection between the lower end of the anchor body 1 and the installation hole 3 can be broken by the refractory material, thereby releasing the stress, so as to ensure that the anchor body 1 will not squeeze and crack the refractory material when being extruded, or cause the fixed base 2 to fall off the steel plate.
[0039] The connection between the first part 4 and the second part 5 is spot-welded to the inner wall of the installation hole 3 to form a solder joint area 10.
[0040] It should be noted here that by using spot welding, the anchor body 1 and the fixed base 2 can be kept relatively fixed before the refractory material is poured. When being extruded, the solder joint area 10 at the spot weld is broken, playing a role in releasing stress, so that the anchor body 1 is separated from the fixed base 2 and is in a movable state, and thus will not squeeze and crack the refractory material or squeeze the fixed base 2 off the steel plate due to being extruded.
[0041] A bent section 6 is provided in the middle of the first part 4, and a bent section 6 is also provided in the middle of the second part 5. The bending direction of the bent section 6 of the first part 4 is set opposite to the bending direction of the bent section 6 of the second part 5.
[0042] The fixed base 2 is arranged in a cuboid structure, and a rectangular welding surface 7 is formed at one end of the fixed base 2 opposite to the opening direction of the anchor body 1.
[0043] It should be noted here that the fixed base 2 is a cuboid, and is fully welded to the steel plate through the rectangular welding surface 7, so that a larger contact area is obtained during the welding of this anchor, and it is also convenient for full welding to improve the connection strength with the steel plate, thereby reducing the problem of the anchor falling off.
[0044] The projected distances of the first part 4 and the second part 5 in the vertical direction are both 10 cm.
[0045] It should be noted here that the lengths of the first part 4 and the second part 5 are equal, making the stress center of gravity of the entire anchor body 1 more uniform, and the design of 10 cm is more suitable for refractory materials with not particularly large thickness.
[0046] The range of the included angle α is 60° - 75°.
[0047] It should be noted here that the included angle α is designed within this range, which not only does not affect the movement of the anchor body 1 in the installation hole 3, but also ensures the bonding between the first part 4 and the second part 5 and the refractory material.
[0048] The inner contour size of the installation hole 3 is larger than the outer contour size at the connection of the first part 4 and the second part 5.
[0049] It should be noted here that with this design, when the anchor body 1 detaches from the fixed base 2, it can move freely in the installation hole 3.
[0050] Plastic caps 8 are sleeved on the upper ends of both the first part 4 and the second part 5.
[0051] There are expansion gaps 9 between the inner top ends of the plastic caps 8 and the upper end faces of both the first part 4 and the second part 5.
[0052] It should be noted here that by sleeving plastic caps 8 on the upper ends of the first part 4 and the second part 5, and there are expansion gaps 9 between the inner top ends of the plastic caps 8 and the upper end faces, when the high temperature during the operation of the cement kiln melts the plastic caps 8, gaps for the expansion and contraction of the anchor body 1 will be formed in the refractory material. Thus, when the anchor body 1 expands and contracts along the length direction due to heat, it is not easy to cause stress damage to the refractory material.
[0053] The above is only a preferred embodiment of the present utility model, and it does not limit the implementation manners and protection scope of the present utility model accordingly.
[0054] On the basis of the above, the present utility model also has the following implementation manners:
[0055] Embodiment 2:
[0056] As Figures 3 to 5 shown,
[0057] The difference from Embodiment 1 is that:
[0058] In the middle of the first part 4, there are multiple connected bending segments 6, and the bending directions between adjacent two bending segments 6 are opposite to each other. In the middle of the second part 5, there are also multiple connected bending segments 6. The second part 5 and the first part 4 are symmetrically arranged about the center of the installation hole 3.
[0059] It should be noted here that the multiple connected bending segments 6 form a corrugated shape. With this design, the bonding between the first part 4 and the second part 5 and the refractory material is better, the gripping force of the anchor body 1 is increased, and the bending directions between adjacent two bending segments 6 are opposite to each other and the second part 5 and the first part 4 are symmetrically arranged about the center of the installation hole 3, making the stress center of the entire anchor body 1 more uniform.
[0060] In summary, the beneficial effects of the present utility model are as follows:
[0061] (1) By providing the fixed base 2, a larger contact area is obtained during the welding of the anchor, changing from point contact to surface contact, which also facilitates full welding to improve the connection strength with the steel plate, thereby reducing the problem of anchor body detachment;
[0062] (2) Before pouring the refractory material, the lower end of the anchor body 1 is relatively fixed by connecting it to the installation hole 3, facilitating the pouring of the refractory material. During the use of the cement kiln, if this anchor is applied to a place with greater stress, the connection between the lower end of the anchor body 1 and the installation hole 3 can be broken by the refractory material, thereby releasing the stress, ensuring that the anchor body 1 will not squeeze and crack the refractory material or cause the fixed base 2 to fall off the steel plate.
[0063] All components selected in this application are common standard components or components known to those skilled in the art, and their structures and principles can all be learned from technical manuals by those skilled in the art or obtained through conventional experimental methods.
[0064] In the description of the embodiments of the present utility model, unless otherwise clearly specified and limited, the terms "installation", "connection", and "coupling" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.
[0065] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.
[0066] Taking the above-mentioned ideal embodiments of the present utility model as an inspiration, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of this utility model. The technical scope of this utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.
Claims
1. A combined anchor for refractory materials that is not easily damaged, characterized in that Comprising: An anchor body (1) and a fixed base (2), an installation hole (3) is formed on the fixed base (2), the anchor body (1) includes a first part (4) and a second part (5), the lower ends of the first part (4) and the second part (5) are connected and installed in the installation hole (3), the first part (4) and the second part (5) are respectively located on both sides of the fixed base (2), the upper ends of the first part (4) and the second part (5) extend in directions away from each other, and an included angle α is formed between the first part (4) and the second part (5).
2. The combined anchor for a refractory material that is not easily damaged as described in claim 1, wherein The connection part between the first part (4) and the second part (5) is connected to the inner wall of the installation hole (3) by spot welding.
3. The combined anchor for a refractory material that is not easily damaged as described in claim 1, wherein A bent section (6) is provided in the middle of the first part (4), and a bent section (6) is also provided in the middle of the second part (5), and the bending direction of the bent section (6) of the first part (4) is opposite to the bending direction of the bent section (6) of the second part (5).
4. A combined anchor for a refractory material that is not easily damaged, as described in claim 1, wherein Multiple interconnected bent sections (6) are provided in the middle of the first part (4), and the bending directions between adjacent two bent sections (6) are opposite, multiple interconnected bent sections (6) are also provided in the middle of the second part (5), and the second part (5) and the first part (4) are symmetrically arranged about the center of the installation hole (3).
5. The combined anchor for a refractory material that is not easily damaged as described in claim 1, characterized in that, The fixed base (2) is arranged in a cuboid structure, and a rectangular welding surface (7) is formed at one end of the fixed base (2) opposite to the opening direction of the anchor body (1).
6. The combined anchor for a refractory material that is not easily damaged as described in claim 1, characterized in that, The projection distances of the first part (4) and the second part (5) in the vertical direction are both 10 cm.
7. The combined anchor of a refractory material that is not easily damaged as described in claim 1, wherein The range of the included angle α is 60° to 75°.
8. The combined anchor for a refractory material that is not easily damaged as described in claim 1, characterized in that, The inner contour dimension of the installation hole (3) is larger than the outer contour dimension of the connection part between the first part (4) and the second part (5).
9. The combined anchor for a refractory material that is not easily damaged as described in claim 1, wherein Plastic caps (8) are sleeved on the upper ends of the first part (4) and the second part (5).
10. A combined anchor for refractory materials that is not easily damaged, as described in claim 9, characterized in that, There are telescopic gaps (9) between the inner top ends of the plastic caps (8) and the upper end surfaces of the first part (4) and the second part (5).