A speed protector mounting frame for a coal mine rubber belt conveyor

Abstract

The utility model discloses a coal mine rubber belt conveyor speed protector mounting bracket, including two batten for respectively being rested on the stringer of belt both sides, be provided with mounting panel between two battens, the mounting panel is located the top of lower belt, and is used for installing speed protector, wherein, when the speed protector is installed on the mounting panel, the measuring roll of its lower part can rotate under the drive of lower belt, the vertical limit stand is provided under the batten, the number of limit stand on each batten is two, and two limit stands are located the both sides of stringer respectively, the utility model discloses through the batten joint on the stringer, designs the mounting panel between two battens again, can provide the installation space for the contact type speed protector, avoids the additional installation support frame at the belt side, has reduced the occupied space when the contact type speed protector installs.

Description

Technical Field

[0001] This utility model belongs to the technical field of coal mine transportation equipment, and in particular relates to a speed protector mounting bracket for a coal mine belt conveyor. Background Technology

[0002] The core function of a belt speed protector (also known as a belt speed detector or slippage detector) is to monitor the running speed of the conveyor belt in real time. When abnormalities such as slippage, overspeed, underspeed, or shutdown occur, it triggers an alarm / shutdown. It is widely used in belt conveyors in industries such as coal mines, ports, metallurgy, and building materials.

[0003] The contact-type speed protector obtains the speed signal through the pulley and belt foundation. When installing the contact-type speed protector, a special bracket needs to be installed next to the belt, requiring a large installation space and a matching mounting bracket. Utility Model Content

[0004] The purpose of this utility model is to provide a mounting bracket for a speed protector of a coal mine belt conveyor, which utilizes the existing H-frame longitudinal beams to install the bracket, thereby reducing the space occupied during the installation of the contact-type speed protector.

[0005] The present invention adopts the following technical solution: a speed protector mounting frame for a coal mine belt conveyor, comprising two mounting plates for mounting on the longitudinal beams on both sides of the belt respectively; An mounting plate is provided between the two mounting plates; the mounting plate is located above the lower belt and is used to install the speed protector; wherein, when the speed protector is installed on the mounting plate, the measuring roller at its lower part can rotate under the drive of the lower belt; Vertical limiting plates are installed below the slab. There are two limiting plates on each slab, and the two limiting plates are located on both sides of the longitudinal beam.

[0006] The beneficial effects of this utility model are: by overlapping the mounting plate on the longitudinal beam and designing the mounting plate between the two mounting plates, this utility model can provide installation space for the contact-type speed protector, avoid the need to install an additional support frame next to the belt, and reduce the space occupied by the contact-type speed protector during installation. Attached Figure Description

[0007] Figure 1 This is a schematic diagram illustrating the usage state of a speed protector mounting bracket for a coal mine belt conveyor according to an embodiment of the present invention. Figure 2 for Figure 1 Enlarged view of the mounting bracket section; Figure 3 This is a structural schematic diagram of the mounting bracket portion from another perspective in an embodiment of this utility model; Figure 4This is a schematic diagram of the state when the speed protector is not installed in the embodiment of this utility model; Figure 5 A structural schematic diagram of the detection roller has been added to this embodiment of the utility model; Figure 6 This is a structural schematic diagram from another perspective after adding a detection roller in this embodiment of the present invention.

[0008] Among them: 10. Head roller; 20. Upper belt; 30. H-frame; 40. Mounting frame; 41. Ladder plate; 42. Limiting upright plate; 43. Inclined plate; 44. Mounting plate; 45. Fixing plate; 46. Connecting plate; 47. Fixing shaft; 48. Inspection roller; 50. Tail roller; 60. Longitudinal beam; 70. Lower belt; 80. Speed ​​protector; 81. Measuring roller. Detailed Implementation

[0009] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0010] A contact-type belt speed protector is a device used to monitor belt speed and prevent belt slippage or overspeeding. It is widely used in industries such as coal mining, power, and metallurgy. Existing contact-type belt speed protectors typically require a dedicated bracket installed next to the belt, which occupies a significant amount of space and can potentially interfere with the installation or operation of other equipment.

[0011] In a scenario, such as Figure 1 As shown, the belt conveyor includes a head roller 10 and a tail roller 50. Belts are installed on the head roller 10 and the tail roller 50. The upper belt 20 is used to transport materials, while the lower belt 70 runs unloaded. Idler rollers are located below both the upper belt 20 and the lower belt 70, and these idlers are mounted on H-frames 30. Adjacent H-frames 30 are connected and fixed by longitudinal beams 60. Typically, a speed protector 80 is installed above the lower belt 70 to detect the smoothest running of the lower belt 70, and the results are used to measure the belt's performance. In this invention, the longitudinal beams 60 are used to fabricate a mounting frame 40, which is then installed onto the longitudinal beams 60.

[0012] This utility model discloses a mounting bracket for a speed protector of a coal mine belt conveyor, such as... Figure 2 , Figure 3 and Figure 4As shown, it includes two mounting plates 41 for resting on the longitudinal beams 60 on both sides of the belt respectively; a mounting plate 44 is provided between the two mounting plates 41; the mounting plate 44 is located above the lower belt 70 and is used to install the speed protector 80; wherein, when the speed protector 80 is installed on the mounting plate 44, the measuring roller 81 at its lower part can rotate under the drive of the lower belt 70; a vertical limiting plate 42 is provided below the mounting plate 41, and there are two limiting plates 42 on each mounting plate 41, and the two limiting plates 42 are located on both sides of the longitudinal beam 60 respectively.

[0013] This utility model provides installation space for the contact-type speed protector 80 by overlapping the mounting plate 41 on the longitudinal beam 60 and designing the mounting plate 44 between the two mounting plates 41, avoiding the need to install an additional support frame next to the belt and reducing the space occupied by the contact-type speed protector during installation.

[0014] In this invention, most components are made of sheet metal for ease of processing, which facilitates material sourcing and reduces costs. In one embodiment, the sheet metal used in this invention is a flat iron with a thickness of 5mm and a width of 8cm, which better meets the installation requirements of the electric drum belt speed protector.

[0015] Of course, the components in this utility model can also be made of other structural parts, such as steel bars, angle iron, channel steel, etc. As long as the components are guaranteed not to deform easily and to be durable, suitable materials can be selected from the existing technology for processing.

[0016] The dimensions of the mounting plate 41 in this invention can be determined based on the diameter of the longitudinal beam 60, ensuring that its length is greater than the diameter of the longitudinal beam 60 as much as possible. The length of the limiting plate 42 must be greater than the radius of the longitudinal beam 60 to ensure that it can perform its limiting function. Regarding the mounting plate 44, in order to cooperate with the installation of the speed protector 80, it is horizontally set, and the mounting plate 44 and the top mounting plate of the speed protector 80 are fixed together, which can be done by bolts or welding.

[0017] Although the lower belt 70 operates relatively stably without significant fluctuations, minor up-and-down movements are inevitable, or the upper surface of the lower belt 70 may be contaminated with coal dust, mud, or other debris. These situations can cause the measuring roller 81 to become too tightly attached to the lower belt 70 or to come off, affecting the detection results.

[0018] Therefore, in one embodiment, the speed protector 80 and the mounting plate 44 are not connected by bolts or welding, but by a spring; wherein, when the speed protector 80 is working, the spring is in a compressed state. Thus, when the lower belt 70 is running, the spring continuously exerts a downward elastic force on the speed protector 80, keeping the lower belt 70 in contact with the measuring roller 81, thereby improving measurement accuracy. The installation method of the spring can be selected according to the actual application scenario.

[0019] In addition, other means are used to further reduce the fluctuation of the lower belt 70 during operation.

[0020] Specifically, such as Figure 5 and Figure 6 As shown, it also includes two symmetrically arranged connecting plates 46, which are vertically arranged and located outside the longitudinal beam 60; the bottom of the connecting plates 46 are connected by a horizontal fixed shaft 47; a detection roller 48 is fitted on the fixed shaft 47; wherein, the detection roller 48 is used to support the lower belt 70 below the measuring roller 81.

[0021] Similarly, the connecting plate 46 can be replaced by a connecting rod or other suitable components. The axis of the fixed shaft 47 is aligned with the width direction of the lower belt 70, thus preventing the detection roller 48 from tilting. Furthermore, the mounting shafts of the fixed shaft 47 and the measuring roller 81 are arranged parallel to each other vertically, ensuring that the detection roller 48 provides support for the lower belt below it, while the measuring roller 81 performs the detection. The connecting plate 46 can be located on the outside or inside of the longitudinal beam 60, but it must be ensured that the connecting plate 46 does not contact the belt.

[0022] With the addition of the connecting plate 46, installation issues may arise. If the connecting plate 46, the fixed shaft 47, and the detection roller 48 are fixedly connected to the aforementioned components, the mounting frame 40 will be difficult to install or will be immovable after installation. Therefore, in this embodiment of the invention, the top of the connecting plate 46 is detachably connected to the mounting plate 41 / limiting upright plate 42 / longitudinal beam 60. This detachable connection facilitates the installation, maintenance, and inspection of the mounting frame 40.

[0023] Regarding the specific form of detachable connection, it can be a bolt connection, a connection with slots or clips, or an overlap, etc.

[0024] In addition, when the lap plate 41 is placed on the longitudinal beam 60, since both are steel structural components and the longitudinal beam 60 is usually cylindrical, the lap plate 41 and the longitudinal beam 60 overlap only on one side. This makes it very easy for the lap plate 41 to slide with the longitudinal beam 60, which causes the measuring roller 81 to tilt or shift, affecting the detection effect.

[0025] To address this issue, the overlap between the lap plate 41 and the longitudinal beam 60 in this invention features an anti-slip layer. This anti-slip layer is typically made of rubber, a material with a high coefficient of friction that prevents slippage. Furthermore, the lower end of the rubber layer can be curved, matching the curvature of the cylindrical surface of the longitudinal beam 60, thereby increasing the contact area and further increasing the friction required for sliding, thus further preventing slippage.

[0026] In one embodiment, the two sides of the mounting plate 44 are connected to the corresponding side of the mounting plate 41 via inclined plates 43; wherein the mounting plate 44 is located below the mounting plate 41, and the two inclined plates 43 are symmetrically arranged. The two symmetrically arranged inclined plates 43 can ensure the structural consistency of the two sides of the mounting plate 44, thereby ensuring uniform force on both sides and improving detection accuracy.

[0027] In this embodiment of the invention, since all components are made of sheet metal, which is prone to bending, a fixing plate 45 is provided between the two inclined plates 43 to prevent bending from affecting the detection accuracy. The fixing plate 45 is located above the mounting plate 44. By using the fixing plate 45 as a tie, the two inclined plates 43 can be tightened to ensure the overall structural strength and to prevent deformation of the inclined plates 43.

[0028] In summary, the mounting bracket 40 of this utility model can reduce the installation space occupied, and through various means, it can ensure the detection accuracy as much as possible, and can realize the installation and stability of the contact belt speed protector 80, which is suitable for coal mine applications.

Claims

1. A mounting bracket for a speed protector of a coal mine belt conveyor, characterized in that, Includes two mounting plates (41) for resting on the longitudinal beams (60) on both sides of the belt respectively. An mounting plate (44) is provided between the two mounting plates (41); the mounting plate (44) is located above the lower belt (70) and is used to install a speed protector (80); wherein, when the speed protector (80) is installed on the mounting plate (44), the measuring roller (81) at its lower part can rotate under the drive of the lower belt (70); A vertical limiting plate (42) is provided below the slab (41). There are two limiting plates (42) on each slab (41), and the two limiting plates (42) are located on both sides of the longitudinal beam (60).

2. The mounting bracket for a speed protector of a coal mine belt conveyor as described in claim 1, characterized in that, The speed protector (80) is connected to the mounting plate (44) by a spring; wherein the spring is in a compressed state when the speed protector (80) is working.

3. The mounting bracket for a speed protector of a coal mine belt conveyor as described in claim 2, characterized in that, It also includes two symmetrically arranged connecting plates (46), which are vertically arranged and located on the outside of the longitudinal beam (60); The bottom of the connecting plate (46) is connected by a horizontal fixed shaft (47); A detection roller (48) is mounted on the fixed shaft (47); wherein the detection roller (48) is used to support the lower belt (70) below the measuring roller (81).

4. The mounting bracket for a speed protector of a coal mine belt conveyor as described in claim 3, characterized in that, The top of the connecting plate (46) is detachably connected to the mounting plate (41) / limiting upright plate (42) / longitudinal beam (60).

5. A mounting bracket for a speed protector of a coal mine belt conveyor as described in any one of claims 2-4, characterized in that, The overlap between the slab (41) and the longitudinal beam (60) has an anti-slip layer.

6. The mounting bracket for a speed protector of a coal mine belt conveyor as described in claim 5, characterized in that, The mounting plate (44) is connected to the corresponding side plate (41) by inclined plates (43) on both sides; wherein the mounting plate (44) is located below the plate (41), and the two inclined plates (43) are symmetrically arranged.

7. The mounting bracket for a speed protector of a coal mine belt conveyor as described in claim 6, characterized in that, A fixing plate (45) is also provided between the two inclined plates (43), and the fixing plate (45) is located above the mounting plate (44).

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