Isolation disconnecting link of fully-mechanized coal winning machine

Abstract

The utility model discloses an isolation disconnecting link of a roadheader, which comprises a soft starter disconnecting link, the rear end of the soft starter disconnecting link is provided with a mounting base, the outer surface of the rear end of the soft starter disconnecting link is fixedly provided with a mounting plate, and the middle parts of the left end and the right end of the outer surface of the front end of the mounting base are respectively provided with a clamping assembly. The clamping assembly comprises a rectangular mounting groove, a second compression spring, a movable block, a clamping block and an inclined plane, a convex key groove is formed in the middle of the upper end of the outer surface of the front end of the mounting base, a stable structure is arranged at the lower end of the convex key groove, and the stable structure comprises a mounting hole, a first compression spring and a movable column. According to the isolation disconnecting link of the fully-mechanized coal winning machine, the clamping assembly is arranged, so that the soft starter disconnecting link can be conveniently limited in a clamping mode, the convenience of assembling and disassembling the soft starter disconnecting link is improved, and the stability after the clamping block and the clamping groove are clamped is conveniently improved through the stable structure.

Description

Technical Field

[0001] The utility model relates to the technical field of mining engineering, in particular to an isolation knife switch of a fully mechanized tunneling machine. Background Art

[0002] The function of a soft starter switch in a tunnel boring machine is to limit the inrush current during motor startup, protecting the motor and power supply system and ensuring a smooth motor startup. By controlling the voltage and current during motor startup, the soft starter reduces the impact on the motor and power supply system, preventing overheating and damage or power supply system failure caused by excessive current.

[0003] In the prior art, when installing the soft starter knife switch, a large number of bolts are required to lock and fix it. When installing and disassembling, a large number of bolts need to be installed or disassembled in sequence, which reduces the efficiency of assembly and disassembly and increases the time for inspection and maintenance.

[0004] To this end, we propose a tunnel boring machine isolation knife switch. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides an isolation knife switch for a tunnel boring machine, which facilitates the assembly and disassembly of the soft starter knife switch, improves the efficiency of assembly and disassembly, and can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a comprehensive excavator isolation knife switch, including a soft starter knife switch, a mounting base is provided at the rear end of the soft starter knife switch, a mounting plate is fixedly installed on the rear end outer surface of the soft starter knife switch, and a clamping assembly is provided in the middle of the left and right ends of the front end outer surface of the mounting base, and the clamping assembly includes a rectangular mounting groove, a second compression spring, a movable block, a clamping block and an inclined surface, a convex key groove is provided in the middle of the upper end of the front end outer surface of the mounting base, and a stabilizing structure is provided at the lower end of the convex key groove, and the stabilizing structure includes a mounting hole, a first compression spring and a movable column, and a convex key rod is fixedly installed in the middle of the upper end of the rear end outer surface of the mounting plate, and a clamping groove is provided in the middle of the left and right ends of the front end outer surface of the mounting plate.

[0007] Preferably, the outer wall of the convex key rod and the convex key slot are plug-connected.

[0008] Preferably, the rectangular mounting groove is opened in the middle of the left and right ends of the front end outer surface of the mounting base, the second compression spring is located in the rectangular mounting groove, the number of the second compression springs in a group of the clamping assembly is two groups, the movable block is located in the rectangular mounting groove, the two groups of the second compression springs are fixedly installed between the left and right ends of the rear end outer surface of the movable block and the left and right sides of one end of the rectangular mounting groove, the clamping block is fixedly installed on the front end outer surface of the movable block, and the inclined surface is opened on the upper end outer surface of the clamping block.

[0009] Preferably, the movable block, the clamping block and the rectangular mounting groove are all slidably connected, the outer surface of one side of the movable block is elastically connected to one end of the rectangular mounting groove through a second compression spring, and the outer wall of one end of the clamping block is clamped to the clamping groove.

[0010] Preferably, the mounting hole is opened at the bottom of the convex keyway, the first compression spring is located in the mounting hole, and the lower end of the movable column extends into the upper part of the inner cavity of the mounting hole, and the first compression spring is fixedly installed between the bottom of the mounting hole and the outer surface of the lower end of the movable column.

[0011] Preferably, the outer wall of the movable column is slidably connected to the mounting hole, and the outer surface of the lower end of the movable column is elastically connected to the bottom of the mounting hole via a first compression spring.

[0012] Compared with the prior art, the present invention provides a tunnel boring machine isolation knife switch, which has the following beneficial effects:

[0013] The isolating knife switch of a tunnel boring machine is provided with a clamping assembly, which facilitates limiting the soft starter knife switch by clamping, thereby improving the convenience of assembling and disassembling the soft starter knife switch.

[0014] The isolating knife switch of a tunnel boring machine is convenient for increasing the stability after the clamping block and the clamping groove are clamped together by the provided stable structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a tunnel boring machine isolation knife switch.

[0016] Figure 2 The utility model is a schematic diagram of the partial structure of an isolation knife switch of a tunnel boring machine.

[0017] Figure 3 The utility model is a structural schematic diagram of a mounting base in an isolation knife switch of a tunnel boring machine.

[0018] Figure 4 This utility model is a kind of isolation knife switch of comprehensive tunnel boring machine Figure 3 Schematic diagram of the structural decomposition.

[0019] In the figure: 1. Soft starter knife switch; 2. Mounting plate; 3. Mounting base; 4. Snap-in groove; 5. Convex key rod; 6. Snap-in assembly; 7. Convex key slot; 8. Stabilizing structure; 9. Mounting hole; 10. First compression spring; 11. Movable column; 12. Rectangular mounting groove; 13. Second compression spring; 14. Movable block; 15. Snap-in block; 16. Inclined surface. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] This embodiment is an isolation knife switch of a tunnel boring machine.

[0022] like Figure 1-4 As shown, it includes a soft starter knife switch 1, a mounting base 3 is provided at the rear end of the soft starter knife switch 1, a mounting plate 2 is fixedly installed on the outer surface of the rear end of the soft starter knife switch 1, and a clamping assembly 6 is provided in the middle of the left and right ends of the front end outer surface of the mounting base 3. The clamping assembly 6 includes a rectangular mounting groove 12, a second compression spring 13, a movable block 14, a clamping block 15 and a slope 16. A convex key groove 7 is provided in the middle of the upper end of the front end outer surface of the mounting base 3, and a stabilizing structure 8 is provided at the lower end of the convex key groove 7. The stabilizing structure 8 includes a mounting hole 9, a first compression spring 10 and a movable column 11, and a convex key rod 5 is fixedly installed in the middle of the upper end of the rear end outer surface of the mounting plate 2, and a clamping groove 4 is provided in the middle of the left and right ends of the front end outer surface of the mounting plate 2.

[0023] The outer wall of the convex key rod 5 is plugged into the convex key groove 7; the rectangular mounting groove 12 is opened in the middle of the left and right ends of the outer surface of the front end of the mounting base 3, the second compression spring 13 is located in the rectangular mounting groove 12, and the number of the second compression spring 13 in a set of clamping components 6 is two groups, and the movable block 14 is located in the rectangular mounting groove 12. The two groups of second compression springs 13 are fixedly installed between the left and right ends of the outer surface of the rear end of the movable block 14 and the left and right sides of one end of the rectangular mounting groove 12. The clamping block 15 is fixedly installed on the outer surface of the front end of the movable block 14, and the inclined surface 16 is opened on the outer surface of the upper end of the clamping block 15; the movable block 14, the clamping block 15 and the rectangular mounting groove are connected. 12 are all sliding connections, one side outer surface of the movable block 14 is elastically connected to one end of the rectangular mounting groove 12 through the second compression spring 13, and the outer wall of one end of the clamping block 15 is clamped to the clamping groove 4; the mounting hole 9 is opened at the bottom of the convex key groove 7, the first compression spring 10 is located in the mounting hole 9, and the lower end of the movable column 11 extends to the upper part of the inner cavity of the mounting hole 9, and the first compression spring 10 is fixedly installed between the bottom of the mounting hole 9 and the lower end outer surface of the movable column 11; the outer wall of the movable column 11 and the mounting hole 9 are slidingly connected, and the lower end outer surface of the movable column 11 is elastically connected to the bottom of the mounting hole 9 through the first compression spring 10.

[0024] It should be noted that the present invention is an isolation knife switch for a comprehensive excavator. The soft starter knife switch 1 described in the article belongs to the prior art and can be effectively known to technicians in the relevant technical field. The specific details will not be repeated here. The mounting base 3 is provided. When the soft starter knife switch 1 and the mounting base 3 are connected, it is only necessary to insert the convex key rod 5 into the convex key groove 7. When the convex key rod 5 is inserted into the convex key groove 7, the outer surface of the lower end of the mounting base 3 is squeezed on the position of the upper inclined surface 16 of the clamping block 15, driving the clamping block 15 and the movable block 14 to slide along the rectangular mounting groove 12. The clamping block 15 enters the rectangular mounting groove 12, and the movable block 14 squeezes the second compression spring 13 in the rectangular mounting groove 12. The lower end of the convex key rod 5 squeezes the stabilizing structure 8 at the bottom of the convex key slot 7. After being squeezed, the movable column 11 slides along the mounting hole 9. The movable column 11 squeezes the first compression spring 10 in the mounting hole 9. When the convex key rod 5 is fully inserted into the convex key slot 7, the clamping groove 4 reaches one end of the clamping block 15. Due to the reaction force of the second compression spring 13, one end of the clamping block 15 is driven to be inserted into the convex key slot 7, thereby realizing the installation of the soft starter knife switch 1 and facilitating disassembly. At this time, the first compression spring 10 is squeezed, and the reaction force of the first compression spring 10 can increase the stability of the clamping block 15 and the clamping groove 4 after clamping, thereby increasing the stability of the soft starter knife switch 1 after installation, and the soft starter knife switch 1 is easy to disassemble.

[0025] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. Furthermore, the terms "include," "comprise," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "includes a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0026] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements shall fall within the scope of the present invention as claimed.

Claims

1. A tunnel boring machine isolation switch, comprising a soft starter switch (1), characterized in that: The rear end of the soft starter knife switch (1) is provided with a mounting base (3), the rear end outer surface of the soft starter knife switch (1) is fixedly installed with a mounting plate (2), the middle of the left and right ends of the front end outer surface of the mounting base (3) are provided with a clamping assembly (6), the clamping assembly (6) includes a rectangular mounting groove (12), a second compression spring (13), a movable block (14), a clamping block (15) and an inclined surface (16), the middle of the upper end of the front end outer surface of the mounting base (3) is provided with a convex key groove (7), the lower end of the convex key groove (7) is provided with a stabilizing structure (8), the stabilizing structure (8) includes a mounting hole (9), a first compression spring (10) and a movable column (11), and the middle of the upper end of the rear end outer surface of the mounting plate (2) is fixedly installed with a convex key rod (5), and the middle of the left and right ends of the front end outer surface of the mounting plate (2) are provided with a clamping groove (4).

2. The isolation knife switch of a tunnel boring machine according to claim 1, characterized in that: The outer wall of the convex key rod (5) and the convex key groove (7) are plug-connected.

3. The isolation knife switch of a tunnel boring machine according to claim 2, characterized in that: The rectangular mounting groove (12) is opened in the middle of the left and right ends of the front end outer surface of the mounting base (3), the second compression spring (13) is located in the rectangular mounting groove (12), the number of the second compression spring (13) in a group of the clamping assembly (6) is two groups, the movable block (14) is located in the rectangular mounting groove (12), the two groups of the second compression spring (13) are fixedly installed between the left and right ends of the rear end outer surface of the movable block (14) and the left and right sides of one end of the rectangular mounting groove (12), the clamping block (15) is fixedly installed on the front end outer surface of the movable block (14), and the inclined surface (16) is opened on the upper end outer surface of the clamping block (15).

4. The isolation knife switch of a tunnel boring machine according to claim 3, characterized in that: The movable block (14), the clamping block (15) and the rectangular mounting groove (12) are all slidably connected. An outer surface of one side of the movable block (14) is elastically connected to one end of the rectangular mounting groove (12) via a second compression spring (13). An outer wall of one end of the clamping block (15) is clamped to the clamping groove (4).

5. The isolation knife switch of a tunnel boring machine according to claim 4, characterized in that: The mounting hole (9) is opened at the bottom of the convex keyway (7), the first compression spring (10) is located in the mounting hole (9), and the lower end of the movable column (11) extends into the upper part of the inner cavity of the mounting hole (9), and the first compression spring (10) is fixedly installed between the bottom of the mounting hole (9) and the outer surface of the lower end of the movable column (11).

6. The isolation knife switch of a tunnel boring machine according to claim 5, characterized in that: The outer wall of the movable column (11) is slidably connected to the mounting hole (9), and the outer surface of the lower end of the movable column (11) is elastically connected to the bottom of the mounting hole (9) via a first compression spring (10).

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