Flat connecting ring positioning pin, positioning pin fixing block mounting method and mounting mold

Abstract

The invention provides a flat chain connecting ring positioning pin, a positioning pin fixing block mounting method and a mounting mould, the positioning pin comprises a fixing block, the fixing block comprises a main body and an arc-shaped groove formed in one side of the main body, the arc-shaped groove wraps the pin column surface where a non-closed elastic ring is located, and the arc-shaped groove is formed in the other side of the main body; the wrapping area is located in the area where the projection non-contact area in the vertical direction of the limiting plate is located. The invention further provides an installation method and an installation mold for the positioning pin and the fixing block, the fixing block is arranged on the positioning pin, the arc-shaped groove matched with the arc face of the pin column of the positioning pin is formed in the fixing block, and by the adoption of the structure, the fixing block can wrap the exposed area of the non-closed elastic ring; foreign matters are prevented from entering the non-closed elastic ring.

Description

Technical Field

[0001] The present application relates to the technical field of flat link chain locating pins, and in particular to a flat link chain locating pin for mining, a method for installing a flat link chain locating pin fixing block for mining, and a mold for installing a flat link chain locating pin fixing block for mining. Background Art

[0002] The vertical connecting link for mining is an indispensable component in mining conveying equipment. Its function is to connect the mining chain end to end. The flat connecting link for mining is composed of two left and right half rings, which are positioned by locating pins. However, due to the harsh working environment underground, the flat connecting link for mining is subjected to complex forces. In addition to cyclic fatigue tension, it also bears impact loads. During the operation of the conveying equipment, once the locating pin becomes loose or falls off, the connecting link may fail, such as the left and right half rings detaching or breaking, which will cause the underground mining and conveying equipment to stop production.

[0003] The existing flat chain ring locating pin is equipped with a non-closed elastic ring on the outside and two steel balls on the inside. The elastic pin is hammered into the center hole of the locating pin, and the elastic pin pushes the steel ball out and exerts force on the non-closed elastic ring, so that the non-closed elastic ring is embedded in the chain ring locating groove, thereby fixing the left and right half rings of the chain ring.

[0004] However, the non-closed elastic ring installed on the existing locating pin is very likely to shift during installation and use, or foreign objects may be stuck in the interface of the non-closed elastic ring, resulting in the non-closed elastic ring being unable to enter the chain connecting ring locating groove or falling out of the chain connecting ring locating groove, and then the flat chain connecting ring locating pin may loosen or fall off, causing the chain connecting ring to fail, requiring frequent replacement, and causing high frequency of conveying equipment shutdowns. Summary of the invention

[0005] The technical problem to be solved by the present application is to provide a mining flat chain link locating pin which prevents foreign matter from entering the non-closed elastic ring in the locating pin.

[0006] Another technical problem to be solved by the present application is to provide a method for installing the above-mentioned fixing block on the positioning pin.

[0007] Another technical problem to be solved by the present application is to provide a special mold for processing the above-mentioned fixing block.

[0008] On the first aspect, with respect to the technical theme of a flat chain link locating pin for mining that prevents foreign matter from entering a non-closed elastic ring, a flat chain link locating pin for mining is provided, the locating pin comprising: a pin column, a through hole, a limiting plate and a fixing block; an annular groove is provided in the middle of the pin column, a spherical bead is placed in the inner circle of the annular groove, a non-closed elastic ring is provided in the outer circle of the annular groove, and the non-closed elastic ring surrounds the spherical bead; the through hole passes through the axis of the locating pin, the through hole is used to install a locking pin, so that the end of the locking pin squeezes the spherical bead, causing the spherical bead to be displaced outward from the annular groove to expand the radius of the non-closed elastic ring; a limiting plate is provided at one end of the pin column, the limiting plate comprising a non-contact area that does not contact the flat chain link and a contact area that contacts the flat chain link; the fixing block comprises a main body and an arc-shaped groove opened on one side of the main body, the arc-shaped groove wraps around the cylindrical surface of the pin column where the non-closed elastic ring is located, and the wrapping area is located in the area where the non-contact area of ​​the vertical projection of the limiting plate is located.

[0009] Through this technical solution, when the locating pin is installed in the flat connecting chain ring for mining, the part of the non-closed elastic ring exposed to the air is: the area where the non-contact area of ​​the vertical projection of the limit plate is located. The rest of the non-closed elastic ring will not be exposed due to the close contact between the locating pin and the connecting chain ring. Therefore, it is necessary to design a device that can wrap the exposed area of ​​the non-closed elastic ring. The locating pin provided in this application is provided with a fixed block, and an arc-shaped groove matching the arc surface of the locating pin pin column is opened on the fixed block. With this structure, the fixed block can cover the exposed area of ​​the non-closed elastic ring to prevent foreign matter from entering the non-closed elastic ring.

[0010] As an improvement of the positioning pin mentioned above in the present application, the fixing block is made of elastic rubber.

[0011] In the second aspect, based on the same inventive concept of the above-mentioned positioning pin, for the technical subject of the fixing block installation method, the present application provides a method for installing a fixing block of a flat link chain ring positioning pin for mining, comprising:

[0012] The arc-shaped groove of the fixed block is wrapped around the cylindrical surface of the pin column where the non-closed elastic ring is located, and the wrapped area is located in the area where the non-contact area of ​​the projection in the vertical direction of the limit plate is located;

[0013] The fixing block and / or the pin are heated to make the fixing block adhere to the pin.

[0014] In this technical solution, the fixing block is adhered to the pin by heating.

[0015] In order to facilitate heating of the fixing block and / or the pin, as an improvement to the above installation method, the fixing block and / or the pin are placed in a limiting device for accommodating the fixing block and the pin for heating.

[0016] On the third aspect, the same inventive concept as the above-mentioned method for installing the locating pin and the locating pin fixing block is used. For the technical subject of the installation mold for the locating pin fixing block of a flat chain link for mining, the present application provides an installation mold for the locating pin fixing block of a flat chain link for mining, the installation mold includes an upper mold and a lower mold that are installed in coordination, the upper mold is provided with a plurality of upper model cavities, the lower mold is provided with a plurality of lower model cavities, the upper model cavities and the lower model cavities are combined after being installed in coordination to form a plurality of complete locating pin placement cavities.

[0017] This installation mold can make it possible to carry out the processing and installation of the fixing block simultaneously.

[0018] Specifically, the installation mold includes an upper mold and a lower mold that are installed in coordination. The upper mold is provided with a plurality of upper model cavities, and the lower mold is provided with a plurality of lower model cavities. After the upper model cavities and the lower model cavities are installed in coordination, they are combined to form a plurality of complete positioning pin placement cavities.

[0019] As an improvement of the above-mentioned installation mold, the placement cavity includes: a pin cavity corresponding to the pin positioning, a limit plate cavity corresponding to the limit plate, a non-closed elastic ring cavity corresponding to the non-closed elastic ring, and a fixed block cavity corresponding to the fixed block. By inserting the corresponding part of the positioning pin into the corresponding part in the placement cavity, the preliminary positioning of the subsequent fixed block processing can be completed. The rubber block required for processing the fixed block is placed in the fixed block cavity formed by the upper model cavity and the lower model cavity, making preliminary preparations for the subsequent molding and installation of the fixed block.

[0020] As an improvement to the above-mentioned installation mold, the installation mold further includes a positioning rod, and the positioning rod passes through the through holes provided in the upper mold and the lower mold to complete the positioning of the mold.

[0021] As an improvement to the above-mentioned installation mold, two rows of placement cavities that are opposite to each other are arranged in the installation mold, and the pin cavities of the two rows of placement cavities in the same column are coaxial and communicated.

[0022] As an improvement of the above-mentioned installation mold, the fixed block installation mold further includes or is equipped with a heating device. The installation mold can be heated by the heating device.

[0023] The beneficial effects of this application are:

[0024] 1. The present application provides a fixing block for fixing a flat chain link locating pin for mining, which adds a non-closed elastic ring fixing block made of rubber material to the non-closed elastic ring portion of the locating pin, so as to fix the non-closed elastic ring so as to prevent it from shifting and prevent foreign objects from getting stuck in the interface portion of the non-closed elastic ring, thereby ensuring the elastic function of the non-closed elastic ring entering the locating groove.

[0025] 2. The present application discloses a fixing block for fixing a positioning pin of a flat chain link for mining. The fixing block can be used to fix the position of a non-closed elastic ring without rigidly connecting the non-closed elastic ring. At the same time, the non-closed elastic ring originally used can be replaced by a circular non-closed elastic ring which is easier to process. In this way, the spherical ball can be compressed by only filling the circular non-closed elastic ring with the circular non-closed elastic ring according to its thickness and the width of the circular groove. In this way, the disadvantages of the traditional fixing method of the non-closed elastic ring with rigid connection, such as bolt fixing, welding fixing, clamp fixing and the like, can affect the elastic function of the non-closed elastic ring entering the positioning groove, thereby avoiding the limitation of the elastic function of the non-closed elastic ring, making the installation of the steel ball unstable, and reducing the risk of the elastic pin coming out.

[0026] 3. In the installation method of the fixing block of the present application, since the fixing block is adhered to the positioning pin during the processing, the shape of its main body prevents the positioning pin and the chain ring from rotating after installation, thereby enhancing the stability of the positioning pin.

[0027] 4. The present application provides a special mold for processing a non-closed elastic ring fixing block for a flat chain link locating pin for mining. The number of pieces processed each time can be increased to multiple pieces, thereby improving production efficiency and avoiding the low efficiency and complex processing problems of only being able to process one piece at a time using a traditional rigidly connected non-closed elastic ring. During the processing, the fixing block is adhered to the locating pin. Since the limit plate cavity on the mold limits the position of the locating pin on the mold, the position of the fixing block adhering to the locating pin is also fixed, and there is no need to make a secondary adjustment to the position of the fixing block installed on the locating pin at a later time. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0029] Figure 1 Schematic diagram of the installation of the steel ball of the flat link chain locating pin for mining in the embodiment of the present application

[0030] Figure 2 This is a schematic diagram of a structure of a positioning pin for fixing a flat link chain ring for mining in an embodiment of the present application;

[0031] Figure 3 This is a structural schematic diagram of a fixing block for fixing a positioning pin of a flat link chain ring for mining in an embodiment of the present application;

[0032] Figure 4 This is a structural diagram of installing the mold in the embodiment of the present application;

[0033] Figure 5 for Figure 4 The enlarged image at a in the middle;

[0034] Description of reference numerals:

[0035] 1. Positioning pin; 11. Pin column; 12. Annular groove; 13. Spherical ball; 14. Non-closed elastic ring; 15. Locking pin; 16. Limiting plate; 161. Non-contact area; 162. Contact area; 17. Fixed block; 171. Main body; 172. Arc groove;

[0036] 2. Install the mold; 21. Upper mold; 211. Upper mold cavity; 22. Lower mold; 221. Lower mold cavity; 23. Positioning rod

[0037] 3. Placement cavity; 31. Pin column cavity; 32. Limit plate cavity; 33. Non-closed elastic ring cavity; 34. Fixed block cavity; DETAILED DESCRIPTION

[0038] The following will be combined with the attached Figures 1 to 5 The embodiments of the technical solution of the present application are described in detail. The following embodiments are only used to more clearly illustrate the technical solution of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0039] Embodiment 1

[0040] In the prior art, the non-closed elastic ring 14 will inevitably expose a portion of its part to the air, and will inevitably come into contact with a large amount of debris in a use environment such as a mine. At this time, the non-closed elastic ring 14 exposed to the air is very easy to enter the debris, affecting the elasticity of the non-closed elastic ring 14, and further affecting the function of pressing the spherical bead 13, making the locking pin 15 in the positioning pin 1 unstable to install and easy to fall out during use.

[0041] To solve this problem, Figures 1 to 3An embodiment of the flat chain link locating pin for mining provided by the present application is illustrated, and the locating pin 1 comprises: a pin column 11, a through hole, a limit plate 16 and a fixing block 17. An annular groove 12 is arranged in the middle of the pin column 11, a spherical bead 13 is placed in the inner circle of the annular groove 12, and a non-closed elastic ring 14 is arranged in the outer circle of the annular groove 12, and the non-closed elastic ring 14 surrounds the spherical bead 13; the through hole runs through the axis of the locating pin 1, and the through hole is used to install a locking pin 15, so that the end of the locking pin 15 squeezes the spherical bead 13, causing the spherical bead 13 to move toward the ring The displacement outside the groove 12 causes the radius of the non-closed elastic ring 14 to expand; the limiting plate 16 is arranged at one end of the pin 11, and the limiting plate 16 includes a non-contact area 161 that does not contact the flat connecting chain ring and a contact area 162 that contacts the flat connecting chain ring; the fixing block 17 includes a main body 171 and an arc-shaped groove 172 opened on one side of the main body 171, and the arc-shaped groove 172 is wrapped around the cylindrical surface of the pin 11 where the non-closed elastic ring 14 is located, and the wrapped area is located in the area where the non-contact area 161 of the limiting plate 16 is projected in the vertical direction.

[0042] In one embodiment, the non-closed elastic ring 14 can be a spring, a ring-shaped opening spring, or other parts with elastically variable radius. The shape of the main body 171 can be a block or a non-block. Figures 1-2 In the illustrated embodiment, a square shape is selected, the non-contact area 161 of the limit plate 16 is an area that does not contact the flat connecting link, and the contact area 162 is an area that contacts the flat connecting link. Figure 3 The schematic diagram of the structure of the fixed block is shown. In this embodiment, an arc-shaped groove 172 is opened on one side of the main body 171. The arc-shaped groove 172 is wrapped around the cylindrical surface of the pin column 11 where the non-closed elastic ring 14 is located, and the wrapped area is located in the area where the non-contact area of ​​the vertical projection of the limit plate 16 is located. Specifically, when the positioning pin 1 is installed in the flat mining chain ring, the part of the non-closed elastic ring 14 exposed to the air is: the area where the non-contact area of ​​the vertical projection of the limit plate 16 is located. The remaining area of ​​the non-closed elastic ring 14 will not be exposed due to the close contact between the positioning pin and the chain ring. Therefore, it is necessary to design a device that can wrap the exposed area of ​​the non-closed elastic ring. The present application provides a fixed block 17, on which an arc-shaped groove 172 matching the arc surface of the pin column 11 of the positioning pin 1 is opened. With this structure, the fixed block 17 can cover the exposed area of ​​the non-closed elastic ring 14 to prevent foreign matter from entering the non-closed elastic ring 14.

[0043] In an optional embodiment, the fixing block 17 is made of elastic rubber. The use of such a material with a large static friction coefficient can better prevent the fixing block from relative displacement in the positioning pin, and the rubber material can quickly return to its original state after being stressed, and can provide the necessary elasticity and buffer. Since rubber has good deformability and elasticity, it can form an effective seal. Since the rubber material becomes sticky when heated, it is convenient to install the fixing block on the positioning pin by heating.

[0044] Those skilled in the art may also select a fixing block made of other materials, such as elastic plastic.

[0045] Embodiment 2

[0046] Based on the same inventive concept as in the first embodiment, in order to install the fixing block in the first embodiment on the positioning pin, the present embodiment provides a method for installing a fixing block for a flat link chain ring positioning pin for a mine, the method comprising:

[0047] The arc groove 172 of the fixing block 17 is wrapped around the cylindrical surface of the pin 11 where the non-closed elastic ring 14 is located, and the wrapped area is located in the area where the non-contact area 161 of the vertical projection of the limiting plate 16 is located;

[0048] The fixing block 17 and / or the pin 11 are heated to make the fixing block 17 adhere to the pin 11 .

[0049] In the installation method provided in this embodiment, the term “and / or” indicates that three relationships may exist, namely, heating the fixing block 17, heating the pin 11, and heating the fixing block 17 and the pin 11 at the same time.

[0050] In order to clearly describe the installation process of the flat link chain ring locating pin fixing block for mining, the following is a detailed step-by-step description of the installation method provided:

[0051] Step 1: Place the fixing block. Align the arc groove 172 of the fixing block 17 with the cylindrical surface of the pin 11, and ensure that the groove can completely cover the area where the non-closed elastic ring 14 is located. Adjust the position of the fixing block 17 so that the area it covers is located in the area where the non-contact area 161 of the vertical projection of the limit plate 16 is located. This is to ensure that the fixing block 17 will not affect the normal operation of the limit plate 16 after installation.

[0052] Step 2: Heat the fixing block and / or pin. Use a heating tool to heat the fixing block 17 and / or pin 11. The purpose of heating is to soften the material of the fixing block 17 so that it can better adhere to the pin 11. Control the heating temperature and time to avoid damage to the fixing block 17 or pin 11 due to excessive temperature. At the same time, the heating time should not be too long to avoid affecting work efficiency.

[0053] Step 3: Fixing block: When the fixing block 17 is heated to a suitable temperature, it is quickly pressed onto the pin 11 to ensure that the fixing block 17 and the pin 11 are tightly fitted.

[0054] Wait for the fixing block 17 to cool and solidify to form a firm adhesive connection. In this process, avoid applying external force to the fixing block 17 to avoid affecting its adhesive effect.

[0055] After the fixing block 17 is completely cooled and solidified, check its adhesion to the pin 11 to ensure that there is no loosening or falling off. At the same time, check whether the installation position of the fixing block 17 is correct and whether it affects the normal operation of the limit plate 16. Through the above steps, the fixing block of the flat link link locating pin for mining can be successfully installed on the pin to ensure that it firmly and reliably fixes the non-closed elastic ring.

[0056] In the above method, an optional implementation is that the fixing block 17 and / or the pin 11 can be placed in a limiting device for holding the fixing block 17 and the pin 11 for heating. The limiting device can be various fixing devices, such as a mold, a clamp, etc., and the heating device can be a hot air gun, a heating box, etc.

[0057] Embodiment 3

[0058] Based on the same inventive concept as that of the first and second embodiments, the third embodiment discloses a mining flat link chain locating pin fixing block installation mold for realizing the installation of the fixing block in the second embodiment on the locating pin.

[0059] Reference Figures 4-5 An implementation manner of a flat chain link locating pin fixing block installation mold for mining provided in this embodiment is illustrated, and the installation mold 2 includes an upper mold 21 and a lower mold 22 that are installed in coordination. The upper mold 21 is provided with a plurality of upper model cavities 211, and the lower mold 22 is provided with a plurality of lower model cavities 221. The upper model cavities 211 and the lower model cavities 221 are combined to form a plurality of complete locating pin placement cavities 3 after being installed in coordination.

[0060] The mining flat link locating pin fixing block installation mold (hereinafter referred to as "installation mold") provided in this embodiment is intended to improve the efficiency and accuracy of installing the fixing block on the locating pin, and ensure that the fixing block can be firmly adhered to the pin column of the locating pin.

[0061] Reference Figures 4-5The mounting mold 2 mainly includes an upper mold 21 and a lower mold 22 that are installed in coordination. The upper mold 21 is provided with a plurality of upper model cavities 211. The shapes and sizes of these upper model cavities 211 match the pins of the locating pins and the shapes of the fixing blocks, and are used to accommodate and locate the pins and the fixing blocks when the upper mold and the lower mold are matched. The lower mold 22 is provided with a plurality of lower model cavities 221. These lower model cavities 221 correspond to the upper model cavities 211, and the two can be combined to form a complete locating pin placement cavity 3 after being installed in coordination. The locating pin placement cavity 3 is used to accommodate the entire locating pin and the fixing block, and ensure that the fixing block can be accurately adhered to the pins during the heating and cooling process.

[0062] During the specific implementation process, first, place the pin part of the locating pin into the lower model cavity 221 to ensure that the position of the pin is accurate. Then, align the arc groove of the fixed block with the pin and place it on the pin. The upper mold 21 and the lower mold 22 are installed in coordination so that the upper model cavity 211 and the lower model cavity 221 are combined to form a complete locating pin placement cavity 3. At this point, the fixed block and the locating pin are accurately positioned in the mold. Use an appropriate heating tool to heat the mold so that the fixed block softens and adheres to the pin. After heating is completed, allow the mold to cool naturally or forcefully cool so that the fixed block solidifies and firmly adheres to the pin. After the mold has completely cooled, open the upper and lower molds and take out the locating pin and the fixed block. Check the installation quality of the fixed block to ensure that there is no looseness or falling off.

[0063] Through the precise positioning and heating function of the mold, the installation of the fixing block can be completed quickly, improving production efficiency. The precise structure and heating function of the mold can ensure that the fixing block is accurately adhered to the pin, avoiding problems such as loosening and falling off.

[0064] like Figure 5 In a preferred embodiment, the placement cavity 3 includes: a pin cavity 31 corresponding to the positioning of the pin 11, a limit plate cavity 32 corresponding to the limit plate 16, a non-closed elastic ring cavity 33 corresponding to the non-closed elastic ring 14, and a fixed block cavity 34 corresponding to the fixed block 17.

[0065] The pin column cavity 31 is designed to correspond to the pin column 11 of the positioning pin, ensuring that the pin column can be accurately placed in the mold and providing a reference for the installation of the fixed block. The limit plate cavity 32 is designed to correspond to the limit plate 16 of the positioning pin, ensuring that the limit plate is accurately positioned in the mold and will not affect the installation of the fixed block. The non-closed elastic ring cavity 33 is designed for the non-closed elastic ring 14, and is used to accommodate and fix the non-closed elastic ring to ensure that its position will not move due to the heating or cooling process. The fixed block cavity 34 is designed to correspond to the fixed block 17 and is a key part of installing the mold. It ensures that the fixed block can be accurately wrapped around the pin column and fit tightly with the pin column.

[0066] In the specific implementation, first, the various components of the locating pin (pin 11, limit plate 16, non-closed elastic ring 14) are placed in the corresponding cavities (pin cavity 31, limit plate cavity 32, non-closed elastic ring cavity 33). Next, place the fixed block 17 in the fixed block cavity 34 to ensure that the arc-shaped groove of the fixed block can be accurately wrapped on the pin. Then the upper mold and the lower mold are installed in coordination so that each cavity is merged into a complete locating pin placement cavity 3. Finally, use an appropriate heating tool to heat the mold so that the fixed block softens and adheres to the pin. After the heating is completed, allow the mold to cool naturally or forcefully cool so that the fixed block solidifies and firmly adheres to the pin. After the mold has completely cooled, open the upper mold and the lower mold, and take out the locating pin and the fixed block. Check the installation quality of the fixed block to ensure that there is no looseness or falling off.

[0067] The design of each cavity in this embodiment ensures the precise position of the positioning pin and the fixing block, thereby improving the accuracy and efficiency of installation.

[0068] In an optional embodiment, the installation mold 2 further includes a positioning rod 23, and the positioning rod 23 passes through the through holes provided in the upper mold 21 and the lower mold 22 to complete the positioning of the mold. The positioning rod 23 passes through the through holes provided in the upper mold 21 and the lower mold 22 to position and fix the upper and lower molds. During the mold closing process, the positioning rod 23 ensures that the upper and lower molds can be accurately aligned, thereby improving the accuracy and efficiency of installation.

[0069] like Figure 4-5 Two rows of placement cavities 3 are arranged opposite to each other in the installation mold, and the pin cavities 31 of the two rows of placement cavities 3 in the same column are coaxial and communicated.

[0070] In an optional embodiment, the fixed block installation mold also includes or is equipped with a heating device. That is to say, a heating device can be provided inside the fixed block installation mold (not shown in the figure), or a heating device can be provided outside the installation mold. The application of the heating device in the mold is mainly to ensure that the fixation quickly reaches a specific temperature, and the heating device in the mold can be selected as a heating wire. If the instant heating device is configured outside the installation mold, a heating box, a heating platform, etc. can be used. During the installation process of the fixed block of the flat connecting link for mining, the heating device is used to heat the mold to ensure that the fixed block can be accurately adhered to the pin.

[0071] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0072] In the description of the embodiments of the present application, the orientations or positional relationships indicated by technical terms such as "upper", "lower", "inside" and "outside" are based on the orientations or positional relationships shown in the accompanying drawings and are only for the convenience of describing the embodiments of the present application and simplifying the description. They do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the embodiments of the present application.

[0073] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "set", "provided with", "connected", "installed" and the like should be understood in a broad sense, for example, they can be fixedly connected, detachably connected, or integrated; they can be directly connected, or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A flat link locating pin for a mine, the locating pin (1) comprising: A pin (11), wherein an annular groove (12) is arranged in the middle of the pin (11), a spherical bead (13) is placed in the inner circle of the annular groove (12), and a non-closed elastic ring (14) is arranged in the outer circle of the annular groove (12), and the non-closed elastic ring (14) surrounds the spherical bead (13); A through hole passing through the axis of the positioning pin (1), the through hole being used to install a locking pin (15), so that the end of the locking pin (15) squeezes the spherical bead (13), causing the spherical bead (13) to move outward from the annular groove (12) and thus expanding the radius of the non-closed elastic ring (14); A limit plate (16) is arranged at one end of the pin (11), wherein the limit plate (16) comprises a non-contact area (161) that does not contact the flat connecting link and a contact area (162) that contacts the flat connecting link; It is characterized in that it also includes a fixed block (17), the fixed block (17) includes a main body (171) and an arc-shaped groove (172) opened on one side of the main body (171), the arc-shaped groove (172) is wrapped around the cylindrical surface of the pin column (11) where the non-closed elastic ring (14) is located, and the wrapped area is located in the area where the non-contact area (161) of the vertical projection of the limiting plate (16) is located.

2. The flat link link locating pin for mining according to claim 1, characterized in that: The fixing block (17) is made of elastic rubber.

3. A method for installing a flat link chain locating pin fixing block for mining, characterized in that: include: The arc-shaped groove (172) of the fixed block (17) is wrapped around the cylindrical surface of the pin column (11) where the non-closed elastic ring (14) is located, and the wrapped area is located in the area where the non-contact area (161) of the vertical projection of the limiting plate (16) is located; The fixing block (17) and / or the pin (11) are heated so that the fixing block (17) adheres to the pin (11).

4. The method for installing a flat link chain locating pin fixing block for mining according to claim 3, characterized in that: The fixing block (17) and / or the pin (11) are placed in a limiting device for containing the fixing block (17) and the pin (11) and heated.

5. A flat link chain positioning pin fixing block installation mold for mining, characterized in that: The mounting mold (2) comprises an upper mold (21) and a lower mold (22) which are mounted in a matching manner, wherein the upper mold (21) is provided with a plurality of upper model cavities (211), and the lower mold (22) is provided with a plurality of lower model cavities (221), and the upper model cavities (211) and the lower model cavities (221) are combined to form a plurality of complete positioning pin placement cavities (3) after being mounted in a matching manner.

6. The flat link link positioning pin fixing block installation mold for mining according to claim 5, characterized in that: The placement cavity (3) comprises: a pin cavity (31) corresponding to the positioning of the pin (11), a limit plate cavity (32) corresponding to the limit plate (16), a non-closed elastic ring cavity (33) corresponding to the non-closed elastic ring (14), and a fixed block cavity (34) corresponding to the fixed block (17).

7. The flat link link positioning pin fixing block installation mold for mining according to claim 5, characterized in that: The installation mold (2) also includes a positioning rod (23), and the positioning rod (23) passes through the through holes formed in the upper mold (21) and the lower mold (22) to complete the positioning of the mold.

8. The flat link link positioning pin fixing block installation mold for mining according to claim 5, characterized in that: Two rows of placement cavities (3) that are opposite to each other are arranged in the installation mold, and the pin column cavities (31) of the two rows of placement cavities (3) in the same column are coaxial and communicated with each other.

9. The flat link link positioning pin fixing block installation mold for mining according to claim 5, characterized in that: The fixing block installation mold also includes or is configured with a heating device.

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