Lock pin mounting structure of hydraulic support of scraper conveyor

Abstract

The lock pin mounting structure comprises a pin shaft and a pin shaft seat for limiting and locking the pin shaft, the hydraulic support comprises a cover plate, a shield beam sleeve and a spring guide rod located in the shield beam sleeve, the shield beam sleeve is located below the cover plate, a first mounting hole is formed in the cover plate, and the spring guide rod is located in the shield beam sleeve. The shield beam sleeve is provided with a second mounting hole, the spring guide rod is provided with a third mounting hole, the pin shaft is inserted into the first mounting hole, the second mounting hole and the third mounting hole, the head of the pin shaft comprises a lower annular blocking table, the pin shaft seat is fixed to the head of the pin shaft in a sleeving mode and located on the cover plate, and a base plate is arranged between the pin shaft seat and the cover plate. The base plate is provided with a base plate hole for the rod portion of the pin shaft to penetrate through, the diameter of the lower annular blocking table of the head portion of the pin shaft is larger than the aperture of the base plate hole, and the base plate is fixed to the cover plate. The lock pin mounting structure is convenient and fast to mount, the pin shaft does not need to be held by hands in the mounting process, the pin shaft can be prevented from falling into the shield beam, the mounting efficiency is improved, and the mounting risk is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic supports for scraper conveyors, in particular to a locking pin installation structure of the hydraulic supports for scraper conveyors. Background Art

[0002] In a hydraulic support, the side guards must be mounted on the shield beam. The two are connected by a pin and a spring guide rod installed in the shield beam sleeve. The shield beam includes a cover plate with a mounting hole for the pin. Due to deformation during the cut, assembly, and welding processes, it is difficult to ensure that the mounting hole in the cover plate is concentric with the mounting holes in the shield beam sleeve and the spring guide rod. This requires the cover plate's mounting hole to be enlarged during the design process, often larger than the pin's maximum diameter. Therefore, when installing the pin, one must manually reach through the oblong hole in the cover plate to hold the pin. Only release the hand after the pin is locked. This structure is inefficient and inconvenient, and it also presents certain installation risks. Furthermore, if the pin is not manually supported during installation, it can easily fall into the shield beam. Utility Model Content

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide a locking pin installation structure for a hydraulic support of a scraper conveyor. During the installation process, there is no need to hold the pin shaft by hand, which can prevent the pin shaft from falling into the protective beam, thereby improving the installation efficiency and reducing the risk during the installation process.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A lock pin mounting structure of a hydraulic support of a scraper conveyor, comprising a pin shaft and a pin shaft seat for limiting and locking the pin shaft, the lock pin mounting structure is mounted on the hydraulic support, the hydraulic support comprises a cover plate, a shielding beam sleeve and a spring guide rod located in the shielding beam sleeve, the shielding beam sleeve is located below the cover plate, the cover plate is provided with a first mounting hole, the shielding beam sleeve is provided with a second mounting hole, the spring guide rod is provided with a third mounting hole, the pin shaft is inserted into the first mounting hole, the second mounting hole and the third mounting hole, the pin shaft comprises a pin shaft rod portion and a pin shaft head portion, the pin shaft head portion comprises a lower annular stop,

[0006] The pin seat is fixed on the pin head and is located on the cover plate. A pad is provided between the pin seat and the cover plate to prevent the pin from falling. The pad is provided with a pad hole for the pin rod to pass through. The diameter of the lower annular stop of the pin head is larger than the aperture of the pad hole, and the pad is fixed on the cover plate.

[0007] Preferably: the pin shaft head includes an upper annular stop platform, the pin shaft seat is provided with a fourth mounting hole and a plug-in slot, the plug-in slot is communicated with the fourth mounting hole, the fourth mounting hole is for the pin shaft to pass through, and the U-shaped stop pin is inserted into the plug-in slot and is located between the upper annular stop platform and the lower annular stop platform.

[0008] Preferably, the diameter of the backing plate hole is smaller than the diameter of the first mounting hole on the cover plate.

[0009] Preferably, the backing plate is welded and fixed on the cover plate.

[0010] Preferably, the diameter of the backing plate hole is smaller than the diameter of the fourth mounting hole on the pin shaft seat.

[0011] Preferably, the backing plate holes are cut out of the backing plate by laser.

[0012] After adopting the above technical solution, the utility model has the following beneficial effects:

[0013] The lock pin installation structure of the scraper conveyor hydraulic support of the present invention is additionally provided with a pad. The pad hole formed on the pad has a diameter larger than the diameter of the pad hole. The pad is fixed to the cover plate, and the head of the pin cannot pass through the pad hole. This prevents the pin from falling into the shield beam during installation even without manually supporting the pin. Since the pad is fixedly installed after the cover is welded, the deformation of the pad hole on the pad is small. This structure can ensure the coaxiality of the pad hole with the first mounting hole, the second mounting hole, and the third mounting hole. In addition, the diameter of the pad hole is smaller than the diameter of the lower annular stop of the pin head, thereby preventing the pin from falling during installation.

[0014] The locking pin installation structure of the scraper conveyor hydraulic support of the utility model is easy and quick to install. The pin shaft does not need to be held by hand during the installation process, which can prevent the pin shaft from falling into the protective beam, thereby improving the installation efficiency and reducing the risk during the installation process. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the locking pin installation structure of the hydraulic support of the scraper conveyor of the utility model;

[0016] Figure 2 yes Figure 1 A magnified schematic diagram of the structure at center A;

[0017] Figure 3 yes Figure 1 A magnified schematic diagram of the structure at B in the middle;

[0018] Figure 4 This is a cross-sectional view of the locking pin installation structure of the hydraulic support of the scraper conveyor of the utility model;

[0019] In the figure: 1. Pin; 101. Pin rod; 102. Lower annular stop; 103. Upper annular stop; 2. Pin seat; 201. Fourth mounting hole; 202. Plug-in slot; 3. Cover plate; 301. First mounting hole; 4. Guard beam sleeve; 401. Second mounting hole; 5. Spring guide rod; 501. Third mounting hole; 6. Pad; 601. Pad hole; 7. U-shaped stop pin. DETAILED DESCRIPTION

[0020] The present invention is further described in detail below with reference to the accompanying drawings and embodiments.

[0021] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0022] In addition, although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates otherwise, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0023] The embodiment of the present utility model discloses Figures 1 to 4The lock pin installation structure of the hydraulic support of the scraper conveyor shown in the figure includes a pin shaft 1 and a pin shaft seat 2 for limiting and locking the pin shaft 1. The lock pin installation structure is installed on the hydraulic support. The hydraulic support includes a cover plate 3, a shielding beam sleeve 4 and a spring guide rod 5 located in the shielding beam sleeve 4. The shielding beam sleeve 4 is located below the cover plate 3. The cover plate 3 is provided with a first mounting hole 301, the shielding beam sleeve 4 is provided with a second mounting hole 401, the spring guide rod 5 is provided with a third mounting hole 501, and the pin shaft is inserted into the first mounting hole. 301, the second mounting hole 401 and the third mounting hole 501, the pin 1 includes a pin rod 101 and a pin head, the pin head includes a lower annular stop 102, the pin seat 2 is fixed on the pin head and is located on the cover 3, and a pad 6 is provided between the pin seat 2 and the cover 3 to prevent the pin from falling. The pad 6 is provided with a pad hole 601 for the pin rod 101 to pass through. The diameter of the lower annular stop 102 of the pin head is larger than the aperture of the pad hole 601, and the pad 6 is fixed on the cover 3.

[0024] In some embodiments, the disclosure Figure 3 and Figure 4 The illustrated locking pin mounting structure of the scraper conveyor hydraulic support comprises an upper annular stop 103 at the pin head, a fourth mounting hole 201 and a plug slot 202 defined in the pin seat 2. The plug slot 202 communicates with the fourth mounting hole 201, and the pin 1 passes through the fourth mounting hole 201. The U-shaped stop pin 7 is inserted into the plug slot 202 and positioned between the upper annular stop 103 and the lower annular stop 102. Once inserted into the pin seat 2, the U-shaped stop pin 7 can positionally secure the pin 1, preventing it from falling out.

[0025] In some embodiments, the backing plate 6 is welded to the cover plate 3. Since the backing plate 6 is assembled and welded after the cover plate 3 is welded, the deformation is small. This structure can ensure the coaxiality of the holes for the mounting pins and prevent the pins from falling during installation.

[0026] In some embodiments, the diameter of the backing plate hole 601 is smaller than the diameter of the first mounting hole 301 on the cover plate 3. The diameter of the backing plate hole 601 is smaller than the diameter of the fourth mounting hole 201 on the pin seat 2.

[0027] In the prior art, since the cover plate workpiece will deform to a certain extent during the cutting, assembly and welding processes, it is difficult to ensure that the mounting hole on the cover plate is concentric with the mounting holes on the shield beam sleeve and the spring guide rod. This requires that the mounting hole on the cover plate be enlarged during the design process. Usually, the mounting hole on the cover plate is larger than the maximum diameter of the pin. Therefore, when installing the pin, it is necessary to reach in through the oblong hole in the cover plate by hand to hold the pin, and only release the hand after the pin is locked. However, the locking pin installation structure of the scraper conveyor hydraulic support of the present invention adds a pad 6 compared to the traditional structure. The pad hole 601 is provided on the pad 6. The diameter of the lower annular stop 102 of the pin head is larger than the aperture of the pad hole 601, so the pin head cannot pass through the pad hole 601. In this way, even if the pin 1 is not supported by hand, it can prevent the pin 1 from falling into the shield beam during installation.

[0028] Since the pad 6 is installed after the cover plate 3 is welded, the deformation of the pad hole 601 on the pad 6 is small. Such a structure can ensure the coaxiality of the pad hole 601 with the first mounting hole 301, the second mounting hole 401 and the third mounting hole 501, and the diameter of the pad hole 601 is smaller than the diameter of the lower annular stop 102 of the pin head. Therefore, the pin 1 can be prevented from falling during the installation process.

[0029] In some embodiments, the pad 6 is cut with the pad hole 601 by laser cutting, which is fast and has high precision.

[0030] The installation method of the lock pin installation structure of the scraper conveyor hydraulic support is as follows:

[0031] During installation, the pin shaft 1 can be directly inserted into the stop pin seat 2, and the pad 6 can block the lower annular stop platform 102 of the pin shaft head, thereby preventing the pin shaft 1 from falling into the shield beam. Then, the U-shaped stop pin 7 is used to lock the pin shaft 1. This locking pin installation structure is easy and quick to install, improves installation efficiency, and avoids installation risks to a certain extent.

[0032] The locking pin installation structure of the scraper conveyor hydraulic support of the utility model is easy and quick to install. The pin shaft does not need to be held by hand during the installation process, which can prevent the pin shaft from falling into the protective beam, thereby improving the installation efficiency and reducing the risk during the installation process.

[0033] The technical solution of the present invention is described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Those skilled in the art should understand that various changes made thereto in form and details fall within the scope of protection defined by the claims of the present invention.

Claims

1. A lock pin mounting structure for a hydraulic support of a scraper conveyor, comprising a pin shaft and a pin shaft seat for limiting and locking the pin shaft, wherein the lock pin mounting structure is mounted on the hydraulic support, wherein the hydraulic support comprises a cover plate, a shield beam sleeve, and a spring guide rod located within the shield beam sleeve, wherein the shield beam sleeve is located below the cover plate, wherein the cover plate has a first mounting hole, wherein the shield beam sleeve has a second mounting hole, wherein the spring guide rod has a third mounting hole, wherein the pin shaft is inserted into the first mounting hole, the second mounting hole, and the third mounting hole ... The pin includes a pin rod and a pin head, and the pin head includes a lower annular stop. The pin seat is fixed on the pin head and is located on the cover plate. A pad is provided between the pin seat and the cover plate to prevent the pin from falling. The pad is provided with a pad hole for the pin rod to pass through. The diameter of the lower annular stop of the pin head is larger than the aperture of the pad hole, and the pad is fixed on the cover plate.

2. The locking pin installation structure of the hydraulic support of a scraper conveyor according to claim 1, characterized in that: The pin shaft head includes an upper annular stop platform, and the pin shaft seat is provided with a fourth mounting hole and a plug-in slot hole. The plug-in slot hole is communicated with the fourth mounting hole, and the fourth mounting hole is for the pin shaft to pass through. The U-shaped stop pin is inserted into the plug-in slot hole and is located between the upper annular stop platform and the lower annular stop platform.

3. The locking pin installation structure of the hydraulic support of a scraper conveyor according to claim 2, characterized in that: The diameter of the backing plate hole is smaller than the diameter of the first mounting hole on the cover plate.

4. The locking pin installation structure of the hydraulic support of a scraper conveyor according to claim 3, characterized in that: The backing plate is welded and fixed on the cover plate.

5. The locking pin installation structure of the hydraulic support of a scraper conveyor according to claim 2, characterized in that: The diameter of the backing plate hole is smaller than the diameter of the fourth mounting hole on the pin shaft seat.

6. The locking pin installation structure of the hydraulic support of a scraper conveyor according to claim 2, characterized in that: The backing plate holes are cut by laser.

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