Connecting structure of cable trough of scraper

Abstract

The utility model discloses a connecting structure of a cable trough of a scraper machine, which relates to the technical field of auxiliary equipment of the scraper machine and comprises a scraper machine body and a cable trough positioned on the side surface of the scraper machine body, a connecting device is arranged between every two adjacent cable grooves located between every two adjacent scraper machine bodies. The connecting device comprises an inner clamping plate and a cable groove vertical plate, the inner clamping plate is located between the cable groove vertical plate and the scraper body, the inner clamping plate is fixedly connected with the cable groove vertical plate through a threaded fastener, and a support is further arranged between the threaded fastener and the cable groove vertical plate. The support is clamped in the cable groove vertical plate, and the extending end of the threaded fastener does not exceed the outer end face of the support. Therefore, according to the utility model, through the improvement of the cable groove, the installation is simplified, the cable can be prevented from being damaged, and the service life of the cable is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary equipment for scraper conveyors, and particularly relates to a connection structure of a cable trough of a scraper conveyor. Background Art

[0002] In coal mining machinery, the most commonly used is still the scraper conveyor. The scraper conveyor is driven by an electric motor. In order to ensure the normal operation of the electric motor, it is necessary to cooperate with the erection of a relatively long cable. Since there will be gaps at the joints between the middle troughs of the scraper conveyor, the stiffness of the cable trough at this place is relatively low. In order to ensure the safety and stability of the cable, it is necessary to connect each section of the cable trough to increase the strength and prevent coal leakage. Usually, inner and outer splints are directly used and fixed by bolts. In this process, in order to ensure the connection strength, the bolts are generally relatively long. Therefore, after the installation is completed, since the protruding length of the bolts cannot be guaranteed, the ends of the bolts often rub against the cables in the cable trough, resulting in cable wear and breakage.

[0003] In the prior art, there is a publication number of CN203734244U, named: Connection device between cable troughs of a scraper conveyor. In this document, by setting parts such as main vertical plates, inserting plates and attaching plates, pins and bolts are used for the strengthened fixation between two cable troughs. In this document, although the cable trough is covered and strengthened, and the ends of the bolts do not contact the cables, it uses relatively small parts such as pins and split pins, which is more difficult for underground construction, and the split pins have relatively small stiffness and are extremely easy to break due to frequent wear. Summary of the Utility Model

[0004] To overcome the above defects, the purpose of the utility model is to provide a connection structure of a cable trough of a scraper conveyor, which can simplify the installation and avoid damaging the cable while improving the service life of the cable through the improvement of the cable trough.

[0005] To achieve the above purpose, the utility model provides a connection structure of a cable trough of a scraper conveyor, which is characterized in that it includes a scraper conveyor body and a cable trough located on the side of the scraper conveyor body; a connection device is provided between two adjacent cable troughs located between two adjacent scraper conveyor bodies; the connection device includes an inner splint and a cable trough vertical plate, the inner splint is located between the cable trough vertical plate and the scraper conveyor body, the inner splint is fixedly connected to the cable trough vertical plate through a threaded fastener, and a counterbore support is further provided between the threaded fastener and the cable trough vertical plate. The counterbore support is clamped in the cable trough vertical plate, and the protruding end of the threaded fastener does not exceed the outer end face of the counterbore support.

[0006] Preferably, a groove is provided in the middle of the counterbore support, the threaded fastener is a stud and a fastening nut, the fastening nut is located in the groove, bosses are provided on both the upper and lower sides of the groove, and the side walls of the two bosses are in contact with the vertical plate of the cable trough.

[0007] Preferably, the stud is a semi-circular head square neck bolt, and the semi-circular head square neck bolt is clamped in the connection hole of the counterbore support.

[0008] Preferably, the cable trough is formed by enclosing a cable baffle, a cable support plate and the vertical plate of the cable trough, and a protective round tube is welded to the top of the cable baffle.

[0009] Preferably, the cable support plate is sleeved in the support adjustment seat, and a support plate is further connected to the bottom of the support adjustment seat.

[0010] After adopting the above technical solutions, the beneficial technical effects obtained by the present utility model are:

[0011] 1. Since the inner clamping plate and the vertical plate of the cable trough are used as the connecting device, and the inner clamping plate and the vertical plate of the cable trough are fixedly connected by using a threaded fastener, and a counterbore support is installed between the threaded fastener and the vertical plate of the cable trough, the installation area is increased, and the stability is stronger after fastening. At the same time, the counterbore support is clamped in the vertical plate of the cable trough, the protruding end of the threaded fastener does not exceed the outer end face of the counterbore support, and the end of the threaded fastener is always located in the groove of the counterbore support and will not directly contact the cable. Therefore, the service life of the cable can be improved.

[0012] 2. Since the cable trough is formed by enclosing a cable baffle, a cable support plate and the vertical plate of the cable trough, each part can be independently processed. Compared with the previous welding method, it is easier to adjust, the cost is lower, and after connection, the strength of the cable trough can be effectively increased, and the installation is also more convenient.

[0013] 3. Since a semi-circular head square neck bolt is used during installation and the semi-circular head square neck bolt is directly clamped in the counterbore support, no additional tools are required to achieve fixed rotation and installation. Therefore, the installation steps are simpler and it is suitable for the environment with poor visibility underground. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic diagram of the use state of the connection structure of the scraper conveyor cable trough of the present utility model;

[0015] Figure 2 is Figure 1 the left view of

[0016] Figure 3 is a schematic diagram of the counterbore support seat in the present utility model;

[0017] In the figure, 1 is the main body of the scraper conveyor;

[0018] 2 is the cable trough; 21 is the cable baffle; 22 is the cable support plate; 23 is the protective round tube;

[0019] 3 is the connecting device; 31 is the inner splint; 32 is the vertical plate of the cable trough;

[0020] 4 is the counterbore support; 41 is the groove; 42 is the boss; 43 is the button head square neck bolt;

[0021] 5 is the support adjusting seat; 51 is the support plate. Detailed implementation mode

[0022] In order to make the purpose, technical solution and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0023] See Figures 1 - 3 , the present utility model provides a connection structure for the cable trough of a scraper conveyor, including the main body 1 of the scraper conveyor and the cable trough 2 located on the side of the main body 1 of the scraper conveyor; a connecting device 3 is provided between two adjacent cable troughs 2 between two adjacent main bodies 1 of the scraper conveyor; the connecting device 3 includes an inner splint 31 and a vertical plate 32 of the cable trough. The inner splint 31 is located between the vertical plate 32 of the cable trough and the main body 1 of the scraper conveyor. The inner splint 31 is fixedly connected to the vertical plate 32 of the cable trough through a threaded fastener. A counterbore support 4 is also provided between the threaded fastener and the vertical plate 32 of the cable trough. The counterbore support 4 is clamped in the vertical plate 32 of the cable trough, and the protruding end of the threaded fastener does not exceed the outer end face of the counterbore support 4. The main body 1 of the scraper conveyor is the main transportation equipment for transporting coal. In order to be suitable for the environment of coal mines, there are certain gaps and inclination angles between the middle troughs of the scraper conveyor. See Figure 1 the front view of, the two main bodies 1 of the scraper conveyor are fixed through the inner splint 31 in the connecting device 3. The outside of the main body 1 of the scraper conveyor is the cable trough 2. The cable trough 2 is generally enclosed in a U shape by a cable baffle 21, a cable support plate 22 and a cable protection plate. During installation, in order to ensure that the cables in the cable trough 2 do not rub against the end of the threaded fastener, it is necessary to use a counterbore support 4. The counterbore support 4 is embedded in the cable support plate 22. During installation, the threaded fastener penetrates through the inner splint 31 and the cable support plate 22, and then is tightened and fixed with a nut. After the connection is completed, both the nut and the end of the threaded fastener are located in the groove 41 of the counterbore support 4.

[0024] In the middle of the counterbore support 4 of the present utility model, there is a groove 41. The threaded fastener is a stud and a fastening nut, and the fastening nut is located in the groove 41. Both the upper and lower sides of the groove 41 are provided with bosses 42, and the side walls of the two bosses 42 are in contact with the cable trough vertical plate 32. To ensure the stability of the connection, the counterbore support 4 is also provided with bosses 42. After installation, the side walls of the two bosses 42 are in contact with the cable support plate 22, which is used to increase the connection area. After adding the bosses 42, not only can the connection stability be increased, but also the contact area between the bosses 42 and the cable is larger, and almost no wear will be caused to the cable.

[0025] The stud of the present utility model is a semi-circular head square neck bolt 43, and the semi-circular head square neck bolt 43 is clamped in the connection hole of the counterbore support 4. The semi-circular head square neck bolt 43 is a standard connector in the prior art. According to the size of the selected specification, the diameter of the square hole in the groove 41 is set. During installation, only the nut needs to be rotated.

[0026] The cable trough 2 of the present utility model is surrounded by a cable baffle 21, a cable support plate 22 and a cable trough vertical plate 32. A protective round tube 23 is welded to the top of the cable baffle 21. The cable support plate 22 and the cable baffle 21 are generally fixedly connected. According to actual needs, the position of the cable support plate 22 in the support adjustment seat 5 is appropriately adjusted. To ensure construction safety, a protective round tube 23 also needs to be welded to the top of the cable baffle 21 for protecting the spiky cable baffle 21 to avoid injury.

[0027] The cable support plate 22 of the present utility model is sleeved in the support adjustment seat 5, and a support plate 51 is also connected to the bottom of the support adjustment seat 5. The support adjustment seat 5 and the support plate 51 are used to support the cable. Generally, stiffening ribs are also provided at the bottom of the support adjustment seat 5 to improve the stability of the device.

[0028] Certainly, the present utility model can also have many other embodiments. Without departing from the spirit and essence of the present utility model, those skilled in the art can make various corresponding changes and deformations according to the present utility model. However, these corresponding changes and deformations should all fall within the protection scope of the appended claims of the present utility model.

Claims

1. A connection structure of a cable trough for a scraper, characterized in that: It comprises a scraper body and a cable groove located on the side of the scraper body; a connecting device is provided between two adjacent cable grooves located between two adjacent scraper bodies; The connecting device includes an inner clamping plate and a cable trough vertical plate, the inner clamping plate is located between the cable trough vertical plate and the scraper body, the inner clamping plate is fixedly connected to the cable trough vertical plate by a threaded fastener, and a countersunk support is also provided between the threaded fastener and the cable trough vertical plate, the countersunk support is clamped in the cable trough vertical plate, and the protruding end of the threaded fastener does not exceed the outer end surface of the countersunk support.

2. The connection structure of the cable trough of the scraper according to claim 1, characterized in that: A groove is provided in the middle of the countersunk support, and the threaded fastener is a stud and a fastening nut. The fastening nut is located in the groove. Bosses are provided on the upper and lower sides of the groove, and the side walls of the two bosses abut against the cable trough vertical plate.

3. The connection structure of the cable trough of the scraper according to claim 2, characterized in that: The stud is a semicircular head square neck bolt, and the semicircular head square neck bolt is clamped in the connecting hole of the countersunk support.

4. The connection structure of the cable trough of the scraper according to claim 1, characterized in that: The cable trough is formed by connecting a cable baffle, a cable support plate and the cable trough vertical plate, and a protective round tube is welded on the top of the cable baffle.

5. The connection structure of the cable trough of the scraper according to claim 4, characterized in that: The cable support plate is sleeved in the support adjustment seat, and the bottom of the support adjustment seat is also connected with a support plate.

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