Reducing sleeve mounting device

Abstract

The utility model relates to a reducing sleeve mounting device. The technical problem that an existing reducing sleeve is low in installation efficiency is solved. The installation device is arranged on a barrel body lining plate, an installation hole used for installing a reducing sleeve is formed in the barrel body lining plate, the reducing sleeve is in a conical barrel shape with a deformation opening, the installation device comprises a limiting piece which is arranged on one side of the barrel body lining plate and can abut against one end of the reducing sleeve, and the limiting piece corresponds to the installation hole. The other side of the barrel body lining plate is provided with an extrusion piece which is arranged in the variable-diameter sleeve in a penetrating mode and can abut against the other end of the variable-diameter sleeve, and the outer side of the end, away from the limiting piece, of the extrusion piece is provided with a connecting piece; and a mounting connecting structure which enables the connecting piece and the limiting piece to be fixedly connected and enables the connecting piece to push the extrusion piece to move towards the limiting piece is arranged between the connecting piece and the limiting piece. The device has the advantages that the variable-diameter sleeve can be mounted through the limiting piece, the pressurizing piece and the connecting piece, the mounting efficiency is improved, and the mounting effect is guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of variable diameter sleeve installation equipment, and specifically relates to a variable diameter sleeve installation device. Background Technology

[0002] In the daily maintenance and installation of coal mills, the installation of the reducing sleeve for the mill liner is a crucial step. Currently, the installation of the reducing sleeve for the mill liner mainly relies on the traditional hammering method. This method is relatively simple; operators use the impact force of the hammer to precisely install the reducing sleeve into the predetermined position. However, this traditional installation method has many obvious drawbacks. The reducing sleeve itself is quite thick, and hammering it in requires a lot of time and manpower, severely reducing the efficiency of the installation work. Furthermore, hammering can easily lead to inaccurate positioning of the reducing sleeve during the hammering process, resulting in improper installation and affecting production efficiency. Summary of the Invention

[0003] The purpose of this invention is to address the above-mentioned problems by providing a variable diameter sleeve installation device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A variable diameter sleeve installation device is provided on a barrel liner. The barrel liner has an installation hole for installing the variable diameter sleeve. The variable diameter sleeve is a conical cylinder with a deformable opening. The installation device includes a limiting member disposed on one side of the barrel liner and abutting against one end of the variable diameter sleeve. The limiting member corresponds to the installation hole. On the other side of the barrel liner, a pressing member is provided, which passes through the variable diameter sleeve and abuts against the other end of the variable diameter sleeve. A connecting member is provided on the outer side of the end of the pressing member away from the limiting member. An installation connection structure is provided between the connecting member and the limiting member, which can fix the connecting member and the limiting member together and allow the connecting member to push the pressing member towards the limiting member. The limiting member can limit and abut the variable diameter sleeve, ensuring the installation effect of the variable diameter sleeve in the installation hole. The connecting member can drive the pressing member to press the variable diameter sleeve towards the installation hole, improving the installation efficiency of the variable diameter sleeve.

[0005] In the aforementioned variable diameter sleeve installation device, the extrusion member includes a conical extrusion section. The conical extrusion section is a conical cylinder with a large end and a small end. The conical extrusion section passes through the inner circumferential side of the variable diameter sleeve, and the outer circumferential side of the large end of the conical extrusion section has an annular extrusion section that abuts against one end face of the variable diameter sleeve. The small end allows for easy placement inside the variable diameter sleeve, and the large end allows for abutment against the deformed variable diameter sleeve after deformation. The annular extrusion section facilitates the abutment and extrusion of the connecting member, ensuring the extrusion effect of the annular extrusion section on the variable diameter sleeve.

[0006] In the aforementioned variable diameter sleeve installation device, the extrusion component and the variable diameter sleeve are coaxially arranged, and the conical extrusion section and the annular extrusion section are coaxially arranged and form an integral structure. The coaxial arrangement can ensure the extrusion effect of the extrusion component on the variable diameter sleeve, and the integral structure can improve the overall structural strength of the extrusion component and increase its service life.

[0007] In the aforementioned variable diameter sleeve installation device, the variable diameter sleeve is adapted to the shape of the conical extrusion part, and the inner diameter of the variable diameter sleeve is larger than the outer diameter of the conical extrusion part, while the outer diameter of the annular extrusion part is larger than the inner diameter of the variable diameter sleeve.

[0008] In the aforementioned variable diameter sleeve installation device, the installation connection structure is a threaded connection structure, the extrusion component is a bolt and the limiting component is a nut. The threaded connection structure facilitates the extrusion of the extrusion component, and makes it easy to install and disassemble the extrusion component and the limiting component, thereby improving the extrusion efficiency.

[0009] In the aforementioned variable diameter sleeve installation device, the limiting member is a flange nut structure, and the limiting member includes a nut part and a flange part that are coaxially connected as one unit. The nut part and the flange part have internal threads on their circumferential inner sides. The internal threads facilitate spiral connection with the connecting parts, thereby improving the spiral extrusion efficiency of the connecting parts.

[0010] In the aforementioned variable diameter sleeve installation device, one end of the variable diameter sleeve abuts against the outside of the flange, and the outer diameter of the flange is larger than the diameter of the mounting hole. The flange can limit and abut the variable diameter sleeve, ensuring the installation effect of the variable diameter sleeve in the mounting hole.

[0011] In the aforementioned variable diameter sleeve installation device, the extrusion component includes a bolt head and a bolt shank. The bolt head abuts against the outer side of the annular extrusion section, and the bolt shank passes through a through hole on the inner circumferential side of the extrusion component and is connected to the internal thread of the limiting component through an external thread. The bolt head allows the user to easily operate and control the bolt shank, improving the extrusion effect of the connecting component on the variable diameter sleeve and ensuring the installation efficiency of the variable diameter sleeve.

[0012] In the aforementioned variable diameter sleeve installation device, the outer diameter of the flange and the outer diameter of the annular extrusion part are the same, which facilitates the positioning and setting of the flange and the annular extrusion part and improves installation efficiency.

[0013] In the aforementioned variable diameter sleeve installation device, the diameter of the through hole is larger than the diameter of the bolt shank, and the diameter of the bolt head is larger than the diameter of the through hole.

[0014] Compared with existing technologies, the advantages of this utility model are:

[0015] 1. The installation of the reducing sleeve can be completed by using limiting parts, pressure parts and connecting parts, which improves installation efficiency and ensures installation effect.

[0016] 2. The nut part of the limiting part can ensure the connection efficiency of the connecting parts, making it easier for users to extrude the reducing sleeve and improve the extrusion efficiency of the reducing sleeve.

[0017] 3. The flange can be set to abut against the reducing sleeve, which can ensure the installation effect of the reducing sleeve during the extrusion process. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the variable diameter sleeve in this utility model.

[0020] Figure 3 This is a cross-sectional view of the variable diameter sleeve in this utility model.

[0021] Figure 4 This is a schematic diagram of the limiting component in this utility model.

[0022] Figure 5 This is a schematic diagram of the extrusion component in this utility model.

[0023] Figure 6 This is a structural schematic diagram of the connector in this utility model.

[0024] Figure 7 This is an application scenario diagram of this utility model.

[0025] In the figure: 1. Barrel liner, 11. Mounting hole, 2. Variable diameter sleeve, 21. Deformation opening, 3. Limiting part, 31. Nut part, 32. Flange part, 4. Extrusion part, 41. Conical extrusion part, 411. Large end, 412. Small end, 42. Annular extrusion part, 43. Through hole, 5. Connector, 51. Bolt head, 52. Bolt rod, 6. Installation connection structure. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0027] like Figure 1 , Figure 2 , Figure 3 , Figure 5 , Figure 7As shown, this is a variable diameter sleeve installation device, which is installed on a barrel liner 1. The barrel liner 1 has an installation hole 11 for installing a variable diameter sleeve 2. The installation hole 11 facilitates the placement of the variable diameter sleeve 2. The variable diameter sleeve 2 is a conical cylinder with a deformation opening 21. The deformation opening 21 facilitates the deformation of the variable diameter sleeve 2 into the installation hole 11, ensuring the installation stability of the variable diameter sleeve 2 within the installation hole 11. This installation device includes a limiting member 3 located on one side of the barrel liner 1 and abutting against one end of the variable diameter sleeve 2. The limiting member 3 corresponds to the installation hole 11. On the other side of the barrel liner 1, there is a... An extrusion member 4 is inserted inside the reducing sleeve 2 and can abut against the other end of the reducing sleeve 2. A connecting member 5 is provided on the outer side of the end of the extrusion member 4 away from the limiting member 3. An installation connection structure 6 is provided between the connecting member 5 and the limiting member 3 to fix the connecting member 5 and the limiting member 3 and to push the extrusion member 4 toward the limiting member 3. The limiting member 3 can limit and abut against the reducing sleeve 2, which can ensure the installation effect of the reducing sleeve 2 in the mounting hole 11. The connecting member 5 can drive the extrusion member 4 to extrude the reducing sleeve 2 toward the mounting hole 11, thereby improving the installation efficiency of the reducing sleeve 2.

[0028] Specifically, the extrusion part 4 includes a conical extrusion part 41, which is a conical cylinder with a large end 411 and a small end 412. The maximum outer diameter of the large end 411 is 32mm, the minimum outer diameter of the small end 412 is 20mm, and the internal channel diameter of the conical extrusion part 41 is 14mm. The conical extrusion part 41 passes through the inner side of the variable diameter sleeve 2, and the outer side of the large end 411 of the conical extrusion part 41 has an annular extrusion part 42 that abuts against one end face of the variable diameter sleeve 2. The diameter of the annular extrusion part 42 is 39mm. The small end 412 can be easily placed inside the variable diameter sleeve 2, and the large end 411 can abut against the deformed variable diameter sleeve 2 after deformation of the deformation opening 2. The annular extrusion part 42 can facilitate the abutment and extrusion of the connecting part 5, ensuring the extrusion effect of the annular extrusion part 42 on the variable diameter sleeve 2.

[0029] The extrusion part 4 is coaxially arranged with the variable diameter sleeve 2. The conical extrusion part 41 and the annular extrusion part 42 are coaxially arranged and form an integral structure. The coaxial arrangement can ensure the extrusion effect of the extrusion part 4 on the variable diameter sleeve 2, and the integral structure can improve the overall structural strength of the extrusion part 4 and increase its service life.

[0030] like Figure 1 , Figure 4 , Figure 5 As shown, the variable diameter sleeve 2 is adapted to the shape of the conical extrusion part 41, and the inner diameter of the variable diameter sleeve 2 is larger than the outer diameter of the conical extrusion part 41, and the outer diameter of the annular extrusion part 42 is larger than the inner diameter of the variable diameter sleeve 2. The inner diameter of the small end of the variable diameter sleeve 2 is 26mm, the inner diameter of the large end of the variable diameter sleeve 2 is 36mm, and the outer diameter of the large end of the variable diameter sleeve 2 is 42mm.

[0031] Furthermore, the installation connection structure 6 is a threaded connection structure, the extrusion component 4 is a bolt and the limiting component 3 is a nut. The threaded connection structure facilitates the extrusion component 4 to be extruded, and facilitates the installation and disassembly of the extrusion component 4 and the limiting component 3, thereby improving the extrusion efficiency.

[0032] The limiting member 3 is a flange nut structure. The internal channel diameter of the limiting member 3 is 12mm. The limiting member 3 includes a nut part 31 and a flange part 32 that are coaxially connected as one piece. The outer diameter of the nut part 31 is 10mm, the diameter of the flange part 32 is 39mm, and the width of the flange part 32 is 5mm. The nut part 31 and the flange part 32 have internal threads on their circumferential inner sides. The internal threads facilitate spiral connection with the connecting member 5, thereby improving the spiral extrusion efficiency of the connecting member 5.

[0033] Combination Figure 1 , Figure 4 , Figure 5 , Figure 6 , Figure 7 As shown, one end of the reducing sleeve 2 abuts against the outside of the flange 32, and the outer diameter of the flange 32 is larger than the diameter of the mounting hole 11. The flange 32 can limit and abut against the reducing sleeve 2, ensuring the installation effect of the reducing sleeve 2 in the mounting hole 11.

[0034] The connector 5 includes a bolt head 51 and a bolt shank 52. The bolt head 51 abuts against the outside of the annular extrusion part 42, and the bolt shank 52 passes through the through hole 43 on the inner side of the extrusion part 4 and is connected to the internal thread of the limiting part 3 through the external thread. The bolt head 51 allows the user to easily operate and control the bolt shank 52, improves the extrusion effect of the connector 5 on the variable diameter sleeve 2, and ensures the installation efficiency of the variable diameter sleeve 2.

[0035] Specifically, the outer diameter of the flange 32 and the outer diameter of the annular extrusion part 42 are the same, which facilitates the positioning of the flange 32 and the annular extrusion part 42 and improves installation efficiency.

[0036] Combination Figure 1 , Figure 5 , Figure 6 As shown, the diameter of the through hole 43 is larger than the diameter of the bolt rod 52, and the diameter of the bolt head 51 is larger than the diameter of the through hole 43. This makes it easier for the user to operate the bolt head 51, and allows the bolt rod 52 to be quickly inserted into the through hole 42 and threadedly connected to the limiting member 3, further improving installation efficiency.

[0037] The principle of this embodiment is as follows: the variable diameter sleeve 2 is set on the mounting hole 11, and the limiting member 3 is set on the side of the cylinder liner 1 away from the variable diameter sleeve 2. The variable diameter sleeve 2 is provided with an extrusion member 4 that abuts against the variable diameter sleeve 2. The connecting member 5 passes through the through hole 43 and the mounting hole 11 and is threadedly connected to the nut part 31. The connecting member 5 drives the extrusion member 4 to extrude the variable diameter sleeve 2 by rotating the thread, thereby improving the extrusion efficiency.

[0038] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

[0039] Although this document frequently uses terms such as barrel liner 1, mounting hole 11, reducing sleeve 2, deformation opening 21, limiting member 3, nut part 31, flange part 32, extrusion part 4, conical extrusion part 41, large end 411, small end 412, annular extrusion part 42, through hole 43, connector 5, bolt head 51, bolt shank 52, and installation connection structure 6, the possibility of using other terms is not excluded. The use of these terms is merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

Claims

1. A variable diameter sleeve installation device, disposed on a barrel liner (1), wherein the barrel liner (1) is provided with an installation hole (11) for installing a variable diameter sleeve (2), wherein the variable diameter sleeve (2) is a conical cylinder with a deformation opening (21), characterized in that, This installation device includes a limiting member (3) disposed on one side of the barrel liner (1) and abutting against one end of the variable diameter sleeve (2). The limiting member (3) corresponds to the mounting hole (11). On the other side of the barrel liner (1), there is a pressing member (4) that passes through the variable diameter sleeve (2) and abuts against the other end of the variable diameter sleeve (2). A connecting member (5) is provided on the outer side of the end of the pressing member (4) away from the limiting member (3). An installation connection structure (6) is provided between the connecting member (5) and the limiting member (3) to fix the connecting member (5) and the limiting member (3) and to push the pressing member (4) toward the limiting member (3).

2. The variable diameter sleeve installation device according to claim 1, characterized in that, The extrusion part (4) includes a conical extrusion part (41), which is a conical cylinder with a large end (411) and a small end (412). The conical extrusion part (41) passes through the inner circumferential side of the variable diameter sleeve (2), and the outer circumferential side of the large end (411) of the conical extrusion part (41) has an annular extrusion part (42) that abuts against one end face of the variable diameter sleeve (2).

3. The variable diameter sleeve installation device according to claim 2, characterized in that, The extrusion part (4) is coaxially arranged with the variable diameter sleeve (2), and the conical extrusion part (41) and the annular extrusion part (42) are coaxially arranged and have an integral structure.

4. A variable diameter sleeve installation device according to claim 2 or 3, characterized in that, The variable diameter sleeve (2) is adapted to the shape of the conical extrusion part (41), and the inner diameter of the variable diameter sleeve (2) is larger than the outer diameter of the conical extrusion part (41), and the outer diameter of the annular extrusion part (42) is larger than the inner diameter of the variable diameter sleeve (2).

5. A variable diameter sleeve installation device according to claim 4, characterized in that, The installation connection structure (6) is a threaded connection structure, the extrusion member (4) is a bolt and the limiting member (3) is a nut.

6. The variable diameter sleeve installation device according to claim 5, characterized in that, The limiting member (3) is a flange nut structure, and the limiting member (3) includes a nut part (31) and a flange part (32) that are coaxially connected as one unit, and the nut part (31) and the flange part (32) have internal threads on their circumferential inner sides.

7. A variable diameter sleeve installation device according to claim 6, characterized in that, One end of the variable diameter sleeve (2) abuts against the outside of the flange (32), and the outer diameter of the flange (32) is larger than the diameter of the mounting hole (11).

8. A variable diameter sleeve installation device according to claim 6, characterized in that, The connector (5) includes a bolt head (51) and a bolt shank (52). The bolt head (51) abuts against the outside of the annular extrusion part (42), and the bolt shank (52) passes through the through hole (43) on the inner side of the circumferential side of the extrusion part (4) and is connected to the internal thread of the limiting part (3) through the external thread.

9. A variable diameter sleeve installation device according to claim 8, characterized in that, The outer diameter of the flange (32) is the same as the outer diameter of the annular extrusion part (42).

10. A variable diameter sleeve installation device according to claim 8, characterized in that, The diameter of the through hole (43) is larger than the diameter of the bolt rod (52), and the diameter of the bolt head (51) is larger than the diameter of the through hole (43).

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