Tension sensor connecting line protection device for coal mining machine towing device

Abstract

The present invention relates to a tension sensor connecting line protection device for a coal mining machine towing cable device, comprising a top seat, a base, a wire trough and a lifting ring, wherein the top seat is fixed on the base, the front portion of the top seat cantilevers forward beyond the base, the wire trough and the lifting ring are each fixed on the top seat and located below the front portion of the top seat, the front portion of the base is provided with a wiring hole, the wire trough comprises a trough body and an annular sleeve mounted at both ends of the trough body, the cross section of the trough body is in the shape of an arc, the annular sleeve is in the shape of a circular ring, the annular sleeve is coaxially arranged with the trough body, one or more arc-shaped buckle plates are mounted on the upper opening of the trough body, and in the cross section of the buckle plate, the buckle plate and the trough body form a full circle. The present invention can avoid abnormal damage to the connecting line by lifting the sensor connecting line originally suspended between the towing cable device and the coal mining machine, thereby ensuring the working reliability of the towing cable device.

Description

Technical Field

[0001] The invention relates to a protection device for protecting a connecting line of a sensor on a towing cable device of a coal mining machine, belonging to the technical field of coal mining equipment. Background Art

[0002] With the development of new coal mining technology and equipment, intelligent, low-manpowered fully mechanized mining equipment is becoming increasingly widely used. The shearer cable assembly ensures the rapid and efficient movement of the shearer, and the tension sensor is a fundamental information-collecting component for cable protection. Due to the limited space available, the existing tension sensor's connecting transmission line is generally exposed to the working environment. This is especially true on shearer cable assemblies in thin coal seams. This causes a layer of coal dust, oil, and water mixture to adhere to the surface of the tension sensor cable, making the cable hard and prone to breaking when subjected to stress. Furthermore, the reserved tensioning portion of the sensor cable hangs outward from the shearer cable assembly, making it susceptible to interference and rubbing against the cable clamp slot during reciprocating motion, causing breakage. Summary of the Invention

[0003] The present invention aims to provide a tension sensor connecting wire protection device for a coal mining machine towing cable device, which can prevent abnormal damage to the sensor connecting wire and ensure the working reliability of the towing cable device.

[0004] The main technical solutions of the present invention are:

[0005] A tension sensor connecting line protection device for a coal mining machine towing cable device includes a top seat, a base, a wire trough and a lifting ring. The top seat is fixed on the base, and the front part of the top seat cantilevers forward beyond the base. The wire trough and the lifting ring are respectively fixed on the top seat and located below the front part of the top seat. A wiring hole is built into the front part of the base.

[0006] A U-shaped frame can also be suspended and installed on the front part of the top seat, and the wire troughs are cross-lapped and fixed on the bottom cross beam of the U-shaped frame.

[0007] The wire trough may include a trough body and annular sleeves installed at both ends of the trough body.

[0008] The cross section of the groove body is preferably in the shape of a major arc, the annular sleeve is in the shape of a circular ring, and the annular sleeve is coaxially arranged with the groove body.

[0009] Both ends of the groove body are provided with arc grooves, and the annular sleeve can be embedded in the arc grooves.

[0010] The annular sleeve is preferably made of elastic material.

[0011] One or more arc-shaped pressing plates may be installed at the upper opening of the trough body. When there are multiple arc-shaped pressing plates, they are spaced apart from each other along the extension direction of the trough body.

[0012] The buckle plate is preferably connected to the slot body via a buckle structure.

[0013] A groove may be provided on the bottom crossbeam of the U-shaped frame, and the lower portion of the trough body is embedded in the groove.

[0014] The beneficial effects of the present invention are:

[0015] The protective device of the present invention supports the sensor connecting line between the coal mining machine body and the towing cable device, which can prevent the connecting line from interfering with the cable clamp groove and thus avoid abnormal damage to the connecting line.

[0016] The specific positions of the wire trough, the hanging ring and the wiring hole relative to the top seat and the base (for example, to the left or to the right) can be determined as needed so as to arrange the direction and distribution of the connecting wires in a targeted manner.

[0017] When the present invention is in a correctly installed state, it can form a semi-enclosed shielding protection structure for the connecting line together with the towing cable device and the coal mining machine body, which can prevent water, coal, oil, etc. from adhering to the connecting line to a certain extent, and play a partial protective role. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a front view of an embodiment of the present invention;

[0019] Figure 2 yes Figure 1 a perspective view of the illustrated embodiment;

[0020] Figure 3 yes Figure 1 A perspective view of another perspective of the illustrated embodiment;

[0021] Figure 4 yes Figure 2 A schematic diagram of the partial structure of the protection device under the viewing angle;

[0022] Figure 5 is a perspective view of the top and base parts;

[0023] Figure 6 2 is a schematic structural diagram of an embodiment of the clamping device.

[0024] Reference numerals:

[0025] 0100. Top seat; 0110. First top plate; 0120. Second top plate; 0130. Ear seat plate; 0140. Limit plate;

[0026] 0200. Base; 0210. Bottom panel; 0220. Side panel; 0230. Middle vertical panel; 0240. Middle side panel;

[0027] 0310. Tension sensor; 0320. Connecting wire; 0330. Lifting ring; 0340. Clamping device; 0341. Ring sleeve; 0342. Slot body; 0343. U-shaped frame; 0344. Clamping seat; 0345. Buckle plate. DETAILED DESCRIPTION

[0028] The present invention discloses a tension sensor connecting line protection device (hereinafter referred to as protection device) for a coal mining machine towing cable device. Figure 1-6 As shown, it includes a top seat 0100, a base 0200, a wire trough and a lifting ring 0330. The top seat is fixed on the base, and the front part of the top seat cantilevers forward beyond the base. The wire trough and the lifting ring are each fixed on the top seat and located below the front part of the top seat. A wiring hole is built into the front part of the base. The wire trough is located in front of the lifting ring and the wiring hole, and the wire trough and the lifting ring are located above the wiring hole. When in use, the tension sensor 0310 is installed on the coal mining machine towing cable device, and the protective device is installed on the coal mining machine body. The connecting line 0320 of the tension sensor is laid in the wire trough close to the sensor, and the section close to the coal mining machine first passes through the lifting ring, then passes through the wiring hole, and is finally introduced into the sensing collection center of the coal mining machine.

[0029] During the movement of the shearer-driven towing cable assembly, the connecting cables between the shearer body and the towing cable assembly are supported on the protective device, preventing them from interfering with or rubbing against the cable cleat slots, thereby preventing abnormal damage to the connecting cables. Multiple sets of cable ducts, eyelets, and routing holes can also be provided. Due to their different locations, the routing directions they form vary, allowing the connecting cables to be routed through a specific set depending on their direction and distribution needs.

[0030] When the protective device is in the correctly installed state, the towing cable device, the coal mining machine body and the protective device can form a semi-enclosed (or semi-closed) structure for the sensor connecting line 0320, which can prevent water, coal, oil, etc. from adhering to the connecting line to a certain extent, and play a partial protective role.

[0031] A U-shaped frame 0343 can also be suspended from the front of the top seat, and the wire duct is cross-lapped and fixed to the bottom crossbeam of the U-shaped frame, that is, the wire duct is fixedly connected to the top seat by the U-shaped frame. The U-shaped frame and the wire duct constitute the main body of the clamping device 0340.

[0032] The cable trough can include a trough body 0342 and annular sleeves 0341 mounted at both ends of the trough body. The notch of the trough body faces upward. A section of connecting wire laid in the trough needs to pass through the annular sleeves at both ends. The annular sleeves securely secure the connecting wire section to the ends of the trough body, ensuring that the connecting wire does not fall out of the trough.

[0033] The slot body is a hard slot and can provide sufficient support for the connecting wire.

[0034] The inner diameter of the slot body is preferably equal to the diameter of the connecting wire to be protected.

[0035] Furthermore, the cross section of the trough body is preferably in the shape of a superior arc, so that the connecting wire laid in the wire trough can still be kept in the wire trough even when subjected to a certain tension. The annular sleeve is in the shape of a circular ring and is coaxially arranged with the trough body.

[0036] Arc grooves are provided at both ends of the groove body, and the annular sleeve is embedded in the arc grooves.

[0037] The annular sleeve is preferably made of an elastic material (such as plastic or rubber), which not only avoids wear on the surface of the connecting wire, but also facilitates fixing the connecting wire by utilizing the elasticity of the annular sleeve.

[0038] One or more arc-shaped buckle plates 0345 can be installed at the upper opening of the slot body. When there are multiple arc-shaped buckle plates, they are spaced apart from each other along the extension direction of the slot body. The buckle plate spans the upper opening of the slot body. The buckle plate can be semicircular. Alternatively, in the cross section of the buckle plate, the buckle plate can also form a full circle with the slot body. Since the connecting line may bend due to tension, resulting in a local upward trend or even lifting away from the slot body, the setting of the buckle plate can prevent the connecting line from lifting, thereby preventing the connecting line from being hung on other structures and being pulled or broken.

[0039] The clamping plate is preferably connected to the trough body via a snap-fit ​​structure, making installation and removal of the clamping plate quick and easy. Accordingly, multiple pairs of clamping seats 0344 can be provided on the upper edge of the trough body. The clamping seats form part of the snap-fit ​​structure, with the other parts located at either end of the clamping plate. In actual use, the mounting position of the clamping plate can be freely changed as needed, and of course, a clamping plate can be installed on each pair of clamping seats.

[0040] The bottom crossbeam of the U-shaped frame is preferably provided with a groove, into which the lower portion of the trough body is embedded. The groove is preferably a cylindrical groove matching the outer diameter of the trough body to facilitate positioning of the trough body.

[0041] The specific structural shapes of the top seat and the base are not limited. The front part of the top seat is preferably configured as a double-ear ear seat with ear holes extending left and right, which is used to be hinged to the tow bar. The tension sensor is installed on the tow bar. The front and rear parts of the top seat are detachably fixedly connected, and the front part of the top seat has multiple installation positions in the left and right directions relative to the rear part. In the embodiment shown in the accompanying drawings, the top seat includes a first top plate 0110, a second top plate 0120, an ear seat plate 0130 and a limit plate 0140. The ear seat plate acts as the double-ear ear seat and is also the front part of the top seat. The second top plate is connected above the first top plate, and the ear seat plate is fixed to the front side of the second top plate. The limit plate is fixed on the bottom surface of the ear seat plate, located in the middle of the double-ear ear seat in the left and right directions, and extends beyond the ear seat plate in front. The tow bar has a tendency to flip upward, and the limit plate is used to limit the maximum angle of the tow bar to flip upward. The U-shaped frame can be installed on the limit plate or the ear seat plate. In this embodiment, considering the angle of the wiring and the range of protection, one end of the U-shaped frame is connected to the limit plate and the other end is connected to the ear seat plate. The lifting ring is installed on the bottom surface of the first top plate. The second top plate serves as the installation and fixing base of the ear seat plate, and also plays the role of increasing the height of the ear seat plate. Multiple pin holes can be set on the second top plate in the left and right directions. When different pin holes are matched with the pin holes on the first top plate and positioning pins are installed, the second top plate can be installed at different positions in the left and right directions relative to the first top plate, and the left and right position of the ear seat plate relative to the first top plate can be adjusted accordingly.

[0042] The base includes a bottom plate and a column fixed to the bottom plate, and the top seat is fixed to the column. In the embodiment shown in the accompanying drawings, the base includes a bottom plate 0210, a side plate 0220, an intermediate vertical plate 0230, and an intermediate side plate 0240, and the intermediate vertical plate and the intermediate side plate cross-intersect to form a column. The bottom plate is provided with a plurality of screw holes that can be used to connect the protective device with the coal mining machine body. The side plate is located on the front side of the bottom plate, and the wiring holes are provided on the side plates, and the wiring holes pass through the side plates from top to bottom. The connecting wire passes through the wiring holes from top to bottom and is introduced into the sensor collection center.

[0043] The present invention can be used not only on a coal mining machine towing cable device, but also on other devices that need to frequently change positions and thus easily cause the connecting wires of sensors to be pulled.

Claims

1. A tension sensor connecting line protection device for a coal mining machine towing cable device, characterized by: It includes a top seat, a base, a wire groove and a hanging ring. The top seat is fixed on the base, and the front part of the top seat cantilevers forward beyond the base. The wire groove and the hanging ring are respectively fixed on the top seat and are located below the front part of the top seat. The front part of the base is provided with a wiring hole. The front part of the top seat is configured as a double-ear ear seat with ear holes extending left and right, which is used to be hinged to the tow rod. The tension sensor is installed on the tow rod.

2. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 1, characterized in that: A U-shaped frame is also suspended and installed on the front part of the top seat, and the wire troughs are cross-lapped and fixed on the bottom cross beam of the U-shaped frame.

3. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 2, characterized in that: The wire trough comprises a trough body and annular sleeves installed at both ends of the trough body.

4. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 3, characterized in that: The cross section of the groove body is in the shape of an arc, the annular sleeve is in the shape of a circular ring, and the annular sleeve is coaxially arranged with the groove body.

5. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 4, characterized in that: Arc grooves are provided at both ends of the groove body, and the annular sleeve is embedded in the arc grooves.

6. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 3, 4 or 5, characterized in that: The annular sleeve is made of elastic material.

7. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 3, 4 or 5, characterized in that: One or more arc-shaped pressing plates are installed on the upper opening of the trough body. When there are multiple arc-shaped pressing plates, they are spaced apart from each other along the extending direction of the trough body.

8. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 6, characterized in that: One or more arc-shaped pressing plates are installed on the upper opening of the trough body. When there are multiple arc-shaped pressing plates, they are spaced apart from each other along the extending direction of the trough body.

9. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 7, characterized in that: The buckle plate is connected to the slot body through a buckle structure.

10. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 3, 4 or 5, characterized in that: A groove is provided on the bottom crossbeam of the U-shaped frame, and the lower part of the trough body is embedded in the groove.

11. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 6, characterized in that: A groove is provided on the bottom crossbeam of the U-shaped frame, and the lower part of the trough body is embedded in the groove.

12. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 7, characterized in that: A groove is provided on the bottom crossbeam of the U-shaped frame, and the lower part of the trough body is embedded in the groove.

13. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 8, characterized in that: A groove is provided on the bottom crossbeam of the U-shaped frame, and the lower part of the trough body is embedded in the groove.

14. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 9, characterized in that: A groove is provided on the bottom crossbeam of the U-shaped frame, and the lower part of the trough body is embedded in the groove.

15. The tension sensor connecting line protection device of the coal mining machine towing cable device according to claim 10, characterized in that: A limiting plate is also connected to the middle bottom surface of the double-ear ear seat, and the front of the limiting plate exceeds the double-ear ear seat. The front and rear of the top seat are detachably fixedly connected, and the front of the top seat has multiple installation positions in the left and right directions relative to the rear.

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