Torque detection device for drum-type coal mining machine
By introducing an electric telescopic rod and a spare strain gauge into the torque detection device of the drum coal mining machine, the problem of replacing the strain gauge when it is damaged is solved, and the continuity of torque detection and efficient response in emergency situations are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-06
- Publication Date
- 2026-04-10
AI Technical Summary
The torque detection device of the existing drum coal mining machine needs to be replaced when the strain gauge is damaged, which wastes time and cannot efficiently respond to emergencies.
A torque detection device for a drum-type coal mining machine was designed. It uses an electric telescopic rod to drive the displacement of a rectangular rod and uses a spare strain gauge to detect torque when the strain gauge fails, thus ensuring the continuous operation of the device.
In the event of strain gauge failure, a spare strain gauge can be used to efficiently detect torque, avoiding the waste of time replacing strain gauges and improving the equipment's emergency response capability.
Smart Images
Figure CN224108957U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of torque detection, in particular to a drum-type coal mining machine torque detection device. BACKGROUND
[0002] The drum-type coal mining machine mainly comprises a motor, a traction part, a cutting part and an auxiliary device. According to the degree of mechanization, the mechanized coal mining working face can be divided into an ordinary mechanized coal mining working face and a comprehensive mechanized coal mining working face, namely, a general mining working face and a fully-mechanized mining working face. The motor is the power part of the drum-type coal mining machine, which drives two cutting parts and a traction part through two output shafts at both ends. The motor of the coal mining machine is explosion-proof, and usually adopts stator water cooling to reduce the size of the motor. The traction part is meshed with the traction chain fixed at both ends of the working face conveyor through the driving sprocket, so that the coal mining machine moves along the working face. Therefore, the traction part is the walking mechanism of the coal mining machine.
[0003] And the torque of the rotating shaft needs to be detected in real time when the coal mining machine is in use. However, the ordinary torque detection device cannot cope with emergency situations. When the strain gauge is damaged, the torque detection device needs to be replaced, which wastes a lot of time. Therefore, the drum-type coal mining machine torque detection device is provided. CONTENT OF THE INVENTION
[0004] The application provides a drum-type coal mining machine torque detection device to solve the above problems.
[0005] The application provides a drum-type coal mining machine torque detection device, which comprises:
[0006] A shell is provided with a first stabilizing plate rotatingly arranged at the left side of the inside of the shell, a first elastic shaft fixedly arranged at the right end of the first stabilizing plate, a second stabilizing plate fixedly connected to the right end of the first elastic shaft, the second stabilizing plate rotatingly arranged in the inside of the shell, a second elastic shaft fixedly connected to the right end of the second stabilizing plate, a third stabilizing plate fixedly connected to the right end of the second elastic shaft, a first connecting shaft fixedly connected to the right end of the second stabilizing plate, a second connecting shaft fixedly connected to the right end of the first connecting shaft, and a rectangular cavity opened in the right side of the second stabilizing plate, the middle of the second elastic shaft, the middle of the third stabilizing plate, the middle of the first connecting shaft and the middle of the second connecting shaft.
[0007] A rectangular rod is movably inserted into the left side of the rectangular cavity, and a transmission rod of an electric telescopic rod is fixedly connected to the right end of the rectangular rod. The electric telescopic rod drives the displacement of the rectangular rod.
[0008] Preferably, the outer side of the first and second elastic shafts is fixedly connected with a first and second strain gauge respectively, and the first and second strain gauges are connected with an external signal receiving mechanism through a transmission line.
[0009] Preferably, the middle of the left end of the first stabilizing plate is fixedly connected with a third connecting shaft.
[0010] Preferably, the middle of the right end of the second connecting shaft is fixedly connected with a fourth connecting shaft.
[0011] Preferably, the third stabilizing plate is rotatably arranged on the right side of the inner cavity of the shell.
[0012] Preferably, the middle of the outer side of the second connecting shaft is rotatably sleeved with a stabilizing shell, and the left end of the stabilizing shell is fixedly connected to the right outer side of the shell.
[0013] Preferably, the electric telescopic rod is fixedly connected to the right side of the inner cavity of the second connecting shaft.
[0014] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:
[0015] The structure provided by the embodiment of the present application, when the first strain gauge is not damaged, the rectangular rod in the middle of the second elastic shaft is not extracted, and no deformation is generated, so that the second strain gauge does not generate detection, so that the second strain gauge is a standby strain gauge, when the first strain gauge fails, the electric telescopic rod is started, which drives the rectangular rod to displace to the right, so that the rectangular rod and the second elastic shaft are extracted, and when each shaft rotates, the second elastic shaft generates deformation, and the torque is detected, so that the occurrence of an emergency can be efficiently coped with. BRIEF DESCRIPTION OF DRAWINGS
[0016] The drawings incorporated into the specification and forming a part thereof, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the application.
[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below, and obviously, other drawings can also be obtained by those skilled in the art without creative labor.
[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0019] Figure 2 It is a sectional view of the utility model;
[0020] Figure 3 It is a schematic diagram of the overall structure of the rectangular rod.
[0021] In the figure: 1, shell; 2, third connecting shaft; 3, stabilizing shell; 4, second connecting shaft; 5, fourth connecting shaft; 6, first stabilizing plate; 7, first elastic shaft; 8, second stabilizing plate; 9, first strain gauge; 10, second strain gauge; 11, second elastic shaft; 12, electric telescopic rod; 13, rectangular rod; 14, rectangular cavity; 15, first connecting shaft. DETAILED DESCRIPTION
[0022] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0023] Various embodiments of the present application can exist in the form of a range. It should be understood that the description in the form of a range is merely for the convenience and brevity, and should not be understood as a hard limitation on the scope of the present application; therefore, it should be considered that the described range has specifically disclosed all possible sub-ranges and single values in the range. For example, it should be considered that the range description from 1 to 6 has specifically disclosed sub-ranges, such as from 1 to 3, from 1 to 4, from 1 to 5, from 2 to 4, from 2 to 6, from 3 to 6, etc., and single values in the described range, such as 1, 2, 3, 4, 5 and 6, which is applicable to any range. In addition, whenever a numerical range is indicated in the present application, it refers to any cited number (fraction or integer) in the indicated range. Unless otherwise specified, various raw materials, reagents, instruments and equipment, etc. used in the present application can be purchased from the market or can be prepared by existing equipment.
[0024] In the present application, the orientation words such as "upper" and "lower" are specifically the directions of the drawing surface in the drawings unless otherwise stated. In addition, in the present application, the terms "include", "contain" and the like mean "include but not limited to". In the present application, the relationship 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 such actual relationship or order between the entities or operations. In the present application, "and / or" describes the association relationship of the associated objects, which means that there can be three kinds of relationships, for example, A and / or B can represent the following cases: A exists alone, A and B exist together, and B exists alone. Wherein A and B can be singular or plural. In the present application, "at least one" means one or more, and "multiple" means two or more. "At least one", "at least one of the following" or the like means any combination of the items, including any combination of single or multiple items. For example, "at least one of a, b, or c", or "at least one of a, b, and c" can represent a, b, c, a-b, that is, a and b, a-c, b-c, or a-b-c, wherein a, b, and c can be single or multiple.
[0025] As shown in Figure 1 and Figure 3 The present application provides a drum-type coal mining machine torque detection device, which comprises:
[0026] A housing 1 is provided with a first stabilizing plate 6 rotating on the left side of the inside of the housing 1, a first elastic shaft 7 is fixedly arranged at the middle of the right end of the first stabilizing plate 6, a second stabilizing plate 8 is fixedly connected to the right end of the first elastic shaft 7, and the second stabilizing plate 8 is rotatingly arranged in the inside of the housing 1, a second elastic shaft 11 is fixedly connected to the middle of the right end of the second stabilizing plate 8, a third stabilizing plate is fixedly connected to the right end of the second elastic shaft 11, a first connecting shaft 15 is fixedly connected to the middle of the right end of the third stabilizing plate, a second connecting shaft 4 is fixedly connected to the right end of the first connecting shaft 15, and a rectangular cavity 14 is communicated and opened in the middle of the right side of the second stabilizing plate 8, the middle of the second elastic shaft 11, the middle of the third stabilizing plate, the middle of the first connecting shaft 15, and the middle of the second connecting shaft 4.
[0027] A rectangular rod 13 is movably inserted into the left side of the rectangular cavity 14, and the right end of the rectangular rod 13 is fixedly connected to the transmission rod of the electric telescopic rod 12. The electric telescopic rod 12 drives the displacement of the rectangular rod 13.
[0028] Specifically, the arrangement of the first stabilizing plate 6, the second stabilizing plate 8 and the third stabilizing plate can make the rotation of each shaft more stable.
[0029] As shown in Figure 2As shown in
[0030] Specifically, the first strain gauge 9 and the second strain gauge 10 are both existing strain gauges in the market, and the second strain gauge 10 is a backup strain gauge.
[0031] As shown in Figure 1 and Figure 2 The left end of the first stabilizing plate 6 is fixedly connected with a third connecting shaft 2.
[0032] Specifically, the third connecting shaft 2 is connected with an external rotating shaft.
[0033] As shown in Figure 1 and Figure 2 The right end of the second connecting shaft 4 is fixedly connected with a fourth connecting shaft 5.
[0034] Specifically, the fourth connecting shaft 5 is connected with an external rotating shaft.
[0035] As shown in Figure 2 The third stabilizing plate is rotatably arranged on the right side of the inner cavity of the shell 1.
[0036] Specifically, the third stabilizing plate can stabilize the rotation of the second elastic shaft 11.
[0037] As shown in Figure 2 The outer side of the second connecting shaft 4 is rotatably sleeved with a stabilizing shell 3, and the left end of the stabilizing shell 3 is fixedly connected to the right end of the shell 1.
[0038] Specifically, the stabilizing shell 3 can make the rotation of the second connecting shaft 4 more stable.
[0039] As shown in Figure 2 and Figure 3 The electric telescopic rod 12 is fixedly connected to the right side of the inner cavity of the second connecting shaft 4.
[0040] Specifically, the electric telescopic rod 12 is an existing telescopic rod in the market, which is prior art, and the electric telescopic rod 12 drives the displacement of the rectangular rod 13.
[0041] Principle of use: when the device is in use, the third connecting shaft 2 and the fourth connecting shaft 5 of the torque detection device are connected to the rotating input device and the rotating shaft of the roller respectively, the second strain gauge 10 is a standby strain gauge, in the initial state, the rectangular rod 13 is inserted at the leftmost side of the rectangular cavity 14, that is, the rectangular rod 13 is inserted at the right middle part of the second stable plate 8, the middle part of the second elastic shaft 11, the middle part of the third stable plate and the middle part of the first connecting shaft 15, so that when the third connecting shaft 2 rotates, the first stable plate 6, the first elastic shaft 7, the second stable plate 8, the second elastic shaft 11, the first connecting shaft 15, the second connecting shaft 4 and the fourth connecting shaft 5 will rotate, and when the first strain gauge 9 is not damaged, the rectangular rod 13 in the middle part of the second elastic shaft 11 is not extracted, and no deformation will occur, so that the second strain gauge 10 does not generate detection, so the second strain gauge 10 is a standby strain gauge, when the first strain gauge 9 fails, the electric telescopic rod 12 is started, which will drive the rectangular rod 13 to displace to the right, so that the rectangular rod 13 is extracted from the second elastic shaft 11, so that when each shaft rotates, the second elastic shaft 11 deforms, and the torque is detected.
[0042] The above description is merely a specific implementation of the present application, which enables those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined in the present application can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown in the present application, but will conform to the widest scope consistent with the principles and novel features of the present application.
Claims
1. A torque detection device for a drum shearer, characterized by, Include: The shell (1), the inside left side of the shell (1) is provided with a first stabilizing plate (6), the right end of the first stabilizing plate (6) is provided with a first elastic shaft (7), the right end of the first elastic shaft (7) is fixedly connected with a second stabilizing plate (8), and the second stabilizing plate (8) is rotatably arranged in the shell (1), the right end of the second stabilizing plate (8) is fixedly connected with a second elastic shaft (11), the right end of the second elastic shaft (11) is fixedly connected with a third stabilizing plate, the right end of the third stabilizing plate is fixedly connected with a first connecting shaft (15), the right end of the first connecting shaft (15) is fixedly connected with a second connecting shaft (4), the right side of the second stabilizing plate (8) is fixedly connected with a second elastic shaft (11), the right side of the second stabilizing plate (8) is fixedly connected with a second elastic shaft (11), the right side of the second stabilizing plate (8) is fixedly connected with a second elastic shaft (11), and the right side of the second stabilizing plate (8) is fixedly connected with a second elastic shaft (11). The rectangular rod (13) is movably inserted into the left side of the rectangular cavity (14), and the right end of the rectangular rod (13) is fixedly connected with the transmission rod of the electric telescopic rod (12), and the electric telescopic rod (12) drives the displacement of the rectangular rod (13).
2. The drum-type coal mining machine torque detection device according to claim 1, characterized by: The outer side of the first elastic shaft (7) and the second elastic shaft (11) is fixedly connected with a first strain gauge (9) and a second strain gauge (10) respectively, and the first strain gauge (9) and the second strain gauge (10) are connected with the external signal receiving mechanism through the transmission line.
3. The drum-type coal mining machine torque detection device according to claim 1, characterized by: The left end of the first stabilizing plate (6) is fixedly connected with a third connecting shaft (2).
4. The drum-type coal mining machine torque detection device according to claim 1, characterized by: The right end of the second connecting shaft (4) is fixedly connected with a fourth connecting shaft (5).
5. The drum-type coal mining machine torque detection device according to claim 1, characterized by: The third stabilizing plate is rotatably arranged in the right side of the inner cavity of the shell (1).
6. The drum-type coal mining machine torque detection device according to claim 1, characterized by: The outer side of the second connecting shaft (4) is rotatably sleeved with a stabilizing shell (3), and the left end of the stabilizing shell (3) is fixedly connected to the right end of the shell (1).
7. The drum-type coal mining machine torque detection device according to claim 1, characterized by: The electric telescopic rod (12) is fixedly connected to the right side of the inner cavity of the second connecting shaft (4).