Abrasion monitoring device for lining plate of stirrer
By setting up a monitoring device for through-holes and counterbore holes on the mixer liner, the monitoring switch is triggered to perform wear alarms, which solves the problem of relying on experience to judge the wear of the liner in the prior art, real-time monitoring and alarm of the wear of the liner is achieved, and economic waste and tank body wear are reduced.
Patent Information
- Application Number
- CN202422033472.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-21
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-21
AI Technical Summary
The replacement of existing mixer linings mainly depends on experience and lack of effective tools, which leads to the inability to accurately judge the degree of wear, which may cause economic waste or wear of the mixer tank.
A mixer liner wear monitoring device is designed. By setting through holes and countersunk holes on the tank and liner, and using monitoring rods and pushing devices to trigger monitoring switches, real-time alarm for liner wear is achieved, and multi-stage wear monitoring is performed in combination with countersunk holes of different depths.
Real-time monitoring and alarm of liner wear is realized, reducing the need for manual inspection, and avoiding unnecessary economic waste and tank wear.
Smart Images
Figure CN223044819U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of mixers, and particularly relates to a wear monitoring device for mixer liners. Background Technique
[0002] A mixer is a construction engineering machine, mainly used for mixing building materials such as cement, sand, gravel, and various dry mortar. A mixer is a machine with a shaft with blades rotating in a tank body, mixing a variety of raw materials to make a mixture or a machine with a suitable consistency. During the process of mixing materials by the mixer, since the sand and gravel will cause great wear to the mixing tank body, in order to reduce the damage of wear to the tank body, liners need to be added in the tank body. When the wear amount of the liners is large, the liners can be replaced.
[0003] However, at present, the replacement of mixer liners mainly depends on experience, with a large human factor. Especially in the narrow space inside the mixer, it is very inconvenient for workers to go in for inspection, and there is no effective inspection tool. It mainly depends on visual observation and experience to judge the wear amount of the liners, and it is impossible to accurately determine the thickness of the liners. Either replacing the liners in advance causes economic waste, or misjudgment and delayed replacement of the liners cause the mixing tank body to be worn through and damaged. Content of the Utility Model
[0004] Aiming at the problems existing in the prior art, the purpose of the utility model is to provide a wear monitoring device for mixer liners.
[0005] To solve the above problems, the utility model adopts the following technical solutions:
[0006] A wear monitoring device for mixer liners includes a tank body and a liner. The liner is attached to the inner wall of the tank body. Through holes penetrating through both of them are provided on the tank body and the liner. One end of the through hole on the surface of the liner has an enlarged diameter to form a counterbore. A monitoring rod that can slide axially along the through hole is arranged in the through hole. One end of the monitoring rod inside the tank body is provided with a monitoring head. The diameter of the monitoring head is larger than the diameter of the through hole. The monitoring head is connected in the counterbore and its bottom abuts against the bottom of the counterbore. A pushing device for pushing the monitoring rod axially along the through hole out of the tank body is arranged on the monitoring rod. A monitoring switch, an alarm device, and a power supply that are electrically connected in series with each other are arranged on the tank body. The monitoring switch is arranged at one end in the direction where the monitoring rod is pushed by the pushing device. When the monitoring switch is pushed by the monitoring rod, its switch state changes to make the circuit connected in series among the monitoring switch, the alarm device, and the power supply communicate. The alarm device emits an alarm when it is connected to the power supply.
[0007] Preferably, the material of the monitoring head is the same as that of the liner.
[0008] Preferably, the pushing device includes an adjusting nut and a spring. One end of the monitoring rod away from the monitoring head is provided with an external thread and protrudes from the surface of the tank body. The adjusting nut is threadedly connected to the external thread on the monitoring head. The spring is sleeved on the monitoring head and is in a compressed state and abuts between the adjusting nut and the surface of the tank body.
[0009] Preferably, the monitoring switch includes a connecting seat, a switch seat, a moving contact and a static contact. The connecting seat is connected to the tank body. The switch seat is connected to the connecting seat. The moving contact is slidably connected in the switch seat. The static contact is connected in the switch seat. The moving contact and the static contact are respectively electrically connected to the alarm device and the power supply. The moving contact is arranged at one end of the monitoring rod in the direction of being pushed by the pushing device. When the moving contact is pushed by the monitoring rod, it contacts the static contact to close the circuit.
[0010] Preferably, a sealing ring is sleeved on the monitoring rod, and the sealing ring is press-fitted between the tank body and the lining plate.
[0011] Preferably, the alarm device is an audible and visual alarm.
[0012] Preferably, there are several through holes on the tank body and the lining plate, which are evenly distributed on the tank body.
[0013] Preferably, the counterbore depths at the ends of different through holes are different.
[0014] Preferably, the counterbore has two different depths. The depth of one counterbore is equal to the wearable thickness of the lining plate, and the depth of the other counterbore is equal to the maximum wear thickness of the lining plate. The alarm modes of the alarm devices connected to the counterbores with two different depths are different.
[0015] Preferably, the alarm device connected to the counterbore with a depth equal to the maximum wear thickness of the lining plate is connected in series to the control circuit of the mixer, and the mixer cannot be started after the alarm.
[0016] Advantages of the present utility model
[0017] Compared with the prior art, the advantages of the present utility model are as follows:
[0018] When the mixer is mixing materials, the lining plate wears due to long-term contact with the mixing materials. When the lining plate installed in the tank body wears to the bottom of the counterbore and the monitoring head of the monitoring rod wears off, the monitoring rod is pushed out of the tank body by the pushing device to trigger the monitoring switch. When the monitoring switch is pushed by the monitoring rod, its switch state changes to connect the circuit in series among the monitoring switch, the alarm device and the power supply, and the alarm device gives an alarm, thereby realizing the wear alarm of the lining plate. The present utility model can monitor the wear condition of the lining plate in real time without manual inspection and measurement of the wear condition. Description of the drawings
[0019] Figure 1 is a schematic structural diagram of the present utility model;
[0020] Figure 2 is Figure 1 a partial enlarged view of the position A in Specific embodiments
[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "upper / lower end", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc. is based on the orientation or positional relationship shown in the drawings. It 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" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0023] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "provided / sleeved with", "socketed", "connected", etc. should be understood in a broad sense. For example, "connected" 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 elements. 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.
[0024] Please refer to Figure 1-2, the utility model provides a technical solution: a wear monitoring device for a mixer liner, including a tank body 1 and a liner 2, the liner 2 is attached to the inner wall of the tank body 1, through holes 3 are provided on the tank body 1 and the liner 2 and penetrate through both of them, one end of the through hole 3 on the surface of the liner 2 has an enlarged diameter to form a counterbore 4, a monitoring rod 5 that can slide axially along the through hole 3 is arranged in the through hole 3, a monitoring head 51 is arranged at one end of the monitoring rod 5 inside the tank body 1, the diameter of the monitoring head 51 is larger than the diameter of the through hole 3, the monitoring head 51 is connected in the counterbore 4 and its bottom abuts against the bottom of the counterbore 4, a pushing device for pushing the monitoring rod 5 axially out of the tank body 1 along the through hole 3 is arranged on the monitoring rod 5, a monitoring switch, an alarm device and a power supply that are electrically connected in series with each other are arranged on the tank body 1, the monitoring switch is arranged at one end of the monitoring rod 5 in the direction of being pushed by the pushing device, when the monitoring switch is pushed by the monitoring rod 5, its switch state changes to make the circuit connected in series among the monitoring switch, the alarm device and the power supply communicate, and the alarm device emits an alarm when it is connected to the power supply.
[0025] When the mixer is mixing materials, the liner 2 is in long-term contact with the mixing materials and wears. When the liner 2 installed in the tank body 1 wears to the bottom of the counterbore 4 and the monitoring head 51 of the monitoring rod 5 wears off, the monitoring rod 5 is pushed out of the tank body 1 by the pushing device to trigger the monitoring switch. When the monitoring switch is pushed by the monitoring rod 5, its switch state changes to make the circuit connected in series among the monitoring switch, the alarm device and the power supply communicate, and the alarm device emits an alarm, thereby realizing the wear alarm of the liner 2. The utility model can monitor the wear condition of the liner 2 in real time without manual inspection and measurement of the wear condition.
[0026] Furthermore, the material of the monitoring head 51 is the same as that of the liner 2, ensuring that the wear degrees of the monitoring head 51 and the liner 2 by the mixing materials are the same.
[0027] Furthermore, the pushing device includes an adjusting nut 61 and a spring 62. One end of the monitoring rod 5 away from the monitoring head 51 is provided with an external thread and this end protrudes from the surface of the tank body 1. The adjusting nut 61 is threadedly connected to the external thread on the monitoring head 51. The spring 62 is sleeved on the monitoring head 51 and is in a compressed state and abuts between the adjusting nut 61 and the surface of the tank body 1, thereby realizing that the pushing device pushes the monitoring rod 5 axially out of the tank body 1 along the through hole 3.
[0028] Further, the monitoring switch includes a connecting seat 71, a switch seat 72, a moving contact 73 and a static contact. The connecting seat 71 is connected to the tank body 1, the switch seat 72 is connected to the connecting seat 71, the moving contact 73 is slidably connected within the switch seat 72, the static contact is connected within the switch seat 72. The moving contact 73 and the static contact are respectively electrically connected to the alarm device and the power supply. The moving contact 73 is arranged at one end in the direction where the monitoring rod 5 is pushed by the pushing device. When the moving contact 73 is pushed by the monitoring rod 5, it contacts the static contact to close the circuit, thereby connecting the circuit in which the monitoring switch, the alarm device, and the power supply are electrically connected in series, and enabling the alarm device to give an alarm.
[0029] Further, a sealing ring 8 is sleeved on the monitoring rod 5, and the sealing ring 8 is crimped between the tank body 1 and the lining plate 2 to achieve sealing and prevent the leakage of the materials inside the tank body 1.
[0030] Further, the alarm device is an audible and visual alarm to give audible and visual reminders to the construction workers.
[0031] Further, there are several through holes 3 on the tank body 1 and the lining plate 2, which are evenly distributed on the tank body 1, so as to conduct all-round monitoring of the lining plate 2 inside the tank body 1.
[0032] Further, the depths of the counterbored holes 4 at the ends of different through holes 3 are different, so as to realize multi-level wear monitoring of the lining plate 2.
[0033] Further, there are two different depths of the counterbored holes 4. The depth of one kind of counterbored hole 4 is equal to the wearable thickness of the lining plate 2, and the depth of the other kind of counterbored hole 4 is equal to the maximum wear thickness of the lining plate 2. When the counterbored hole 4 with a depth equal to the wearable thickness of the lining plate 2 and the monitoring head 51 therein are worn out, the corresponding alarm device gives an alarm to remind the construction workers to replace the lining plate 2 as soon as possible. When the counterbored hole 4 with a depth equal to the maximum wear thickness of the lining plate 2 and the monitoring head 51 therein are worn out, the corresponding alarm device gives an alarm to remind the construction workers that the lining plate 2 can no longer be used. The alarm modes of the alarm devices connected to the counterbored holes 4 with two different depths are different, which is convenient for the construction workers to identify the state of the lining plate 2.
[0034] Further, the alarm device connected to the counterbored hole 4 with a depth equal to the maximum wear thickness of the lining plate 2 is connected in series to the control circuit of the mixer. After the alarm, the mixer cannot be started, thus preventing the construction workers from forgetting or failing to notice the alarm and continuing to use it, which may cause wear to the tank body 1.
[0035] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A mixer liner wear monitoring device, comprising a tank body (1) and a liner (2), wherein the liner (2) is attached to the inner wall of the tank body (1), and characterized in that: The tank body (1) and the liner (2) are provided with a through hole (3) penetrating the two, the through hole (3) having a diameter enlarged at one end on the surface of the liner (2) to form a countersunk hole (4), a monitoring rod (5) slidable along the axial direction of the through hole (3) is provided in the through hole (3), a monitoring head (51) is provided at one end of the monitoring rod (5) in the tank body (1), the diameter of the monitoring head (51) is larger than the diameter of the through hole (3), the monitoring head (51) is connected to the countersunk hole (4) and its bottom abuts against the countersunk hole (4). The monitoring rod (5) is provided with a pushing device for pushing the monitoring rod (5) axially along the through hole (3) toward the outside of the tank body (1). The tank body (1) is provided with a monitoring switch, an alarm device, and a power supply that are electrically connected in series with each other. The monitoring switch is arranged at one end of the monitoring rod (5) in the direction in which the pushing device pushes the monitoring rod (5). When the monitoring switch is pushed by the monitoring rod (5), its switch state changes so that the circuits connected in series with each other among the monitoring switch, the alarm device, and the power supply are connected. When the alarm device is connected to the power supply, an alarm is issued.
2. A mixer liner wear monitoring device according to claim 1, characterized in that: The material of the monitoring head (51) is the same as that of the lining plate (2).
3. The mixer liner wear monitoring device according to claim 1, characterized in that: The pushing device comprises an adjusting nut (61) and a spring (62); an end of the monitoring rod (5) away from the monitoring head (51) is provided with an external thread and the end protrudes from the surface of the tank body (1); the adjusting nut (61) is threadedly connected to the external thread on the monitoring head (51); and the spring (62) is sleeved on the monitoring head (51) and is in a compressed state and abuts between the adjusting nut (61) and the surface of the tank body (1).
4. The mixer liner wear monitoring device according to claim 1, characterized in that: The monitoring switch comprises a connecting seat (71), a switch seat (72), a moving contact (73) and a stationary contact; the connecting seat (71) is connected to the tank body (1); the switch seat (72) is connected to the connecting seat (71); the moving contact (73) is slidably connected in the switch seat (72); the stationary contact is connected in the switch seat (72); the moving contact (73) and the stationary contact are electrically connected to an alarm device and a power source respectively; the moving contact (73) is arranged at one end of the monitoring rod (5) in a direction in which the pushing device pushes the moving contact (73); when the monitoring rod (5) pushes the moving contact (73), the moving contact (73) contacts the stationary contact to close the circuit.
5. The mixer liner wear monitoring device according to claim 1, characterized in that: A sealing ring (8) is sleeved on the monitoring rod (5), and the sealing ring (8) is crimped between the tank body (1) and the liner (2).
6. The mixer liner wear monitoring device according to claim 1, characterized in that: The alarm device is an audible and visual alarm.
7. The mixer liner wear monitoring device according to claim 1, characterized in that: There are a plurality of through holes (3) on the tank body (1) and the lining plate (2), which are evenly distributed on the tank body (1).
8. The mixer liner wear monitoring device according to claim 7, characterized in that: The depths of the countersunk holes (4) at the ends of different through holes (3) are different.
9. A mixer liner wear monitoring device according to claim 8, characterized in that: The countersunk hole (4) has two different depths, one countersunk hole (4) has a depth equal to the wearable thickness of the lining plate (2), and the other countersunk hole (4) has a depth equal to the maximum wear thickness of the lining plate (2). The alarm devices connected to the countersunk holes (4) of the two different depths have different alarm modes.
10. A mixer liner wear monitoring device according to claim 9, characterized in that: The alarm device connected to the countersunk hole (4) whose depth is equal to the maximum wear thickness of the lining plate (2) is connected in series to the mixer control circuit, and the mixer cannot be started after the alarm is sounded.