A device for quick removal of the lining of a semi-autogenous mill

Abstract

The application discloses a kind of semi-autogenous mill quick dismantling lining plate device, including base, be located in the lower end of the base roller and be located in the upper end of the base support table, further include: punch, for impact removal bolt on lining plate;Adjusting mechanism, located above the base, for adjusting the position of the punch, to impact removal bolt in different positions;Positioning mechanism, for positioning the position of bolt, for the punch to align bolt;Buffer mechanism, for slowing down the impact of the punch on the side wall of semi-autogenous mill when impacting bolt;Protective mechanism, for preventing the damage of bolt splashed debris to human body when being impacted by the punch.The application positions the position of impact bolt by setting positioning mechanism, buffer mechanism and protective mechanism;Air bag plays the role of buffering;Protective plate blocks the bolt debris splashed, to avoid bolt debris injury.

Description

Technical Field

[0001] This invention relates to the field of semi-autogenous grinding mills, and more specifically to a device for quickly removing liners from a semi-autogenous grinding mill. Background Technology

[0002] The working principle of an autogenous mill is basically the same as that of a ball mill. However, the cylinder of an autogenous mill is larger than that of a ball mill. It utilizes the material being pulverized within the cylinder itself as the grinding media, undergoing continuous and intense impact grinding to achieve the grinding purpose, rather than using steel balls or any other grinding media. Sometimes, to increase the mill's processing capacity, a small amount of steel balls can be added, typically accounting for 2-3% of the effective volume of the autogenous mill (also known as a semi-autogenous mill). The liners of a semi-autogenous mill are connected to the ball mill body using special bolts. These liners need to be replaced periodically during use, requiring the removal of numerous special bolts.

[0003] Currently, after long-term use, the connecting bolts of semi-autogenous grinding mills tend to wear and deform, making them difficult to remove. When removing the semi-autogenous grinding mill liner, a bolt punch is used to impact the bolts with high energy. However, it is difficult to accurately align the punch with the bolt position, and the impact force of the punch during the removal process can easily cause bolt fragments to fly out and injure people, posing a safety hazard. Summary of the Invention

[0004] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a device for quickly removing liners from a semi-autogenous grinding mill.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A device for quickly removing liners from a semi-autogenous grinding mill includes a base, rollers disposed at the lower end of the base, and a support platform disposed at the upper end of the base, and further includes:

[0007] A punch used to remove bolts from a liner plate;

[0008] An adjustment mechanism, located above the base, is used to adjust the position of the punch to impact and remove bolts in different positions;

[0009] A positioning mechanism is used to position the bolt so that the punch can be aligned with the bolt;

[0010] A buffer mechanism is provided to reduce the impact of the punch on the sidewall of the semi-autogenous mill when it strikes the bolt.

[0011] A protective mechanism is provided to prevent injury to the human body from debris ejected from the bolt when it is impacted by the punch.

[0012] Preferably, the adjustment mechanism includes:

[0013] A displacement cylinder is installed on the upper end of the support platform. The output end of the displacement cylinder is provided with a support seat. The displacement cylinder is used to drive the support seat to move horizontally.

[0014] Two vertical plates, the lower end of which is provided with a first driven gear, the first driven gear being meshed with a first driving gear and the first driven gear being rotatably connected to the support base;

[0015] A rotating arm is hinged to the vertical plate. A hydraulic telescopic rod is hinged to the rotating arm and is also hinged to the vertical plate. The hydraulic telescopic rod is used to drive the rotating arm to rotate. An extension arm is connected to the rotating arm and a drive cylinder is connected to the extension arm. The output end of the drive cylinder is connected to the punch and drives the punch to impact the bolt.

[0016] Preferably, the positioning mechanism includes:

[0017] A positioning plate, wherein a plurality of evenly distributed diagonal rods are connected to the side of the positioning plate near the extension arm, and a fixing ring for mounting the positioning plate to the extension arm is connected to the diagonal rods;

[0018] A through groove is provided at the center of the positioning plate, through which bolts pass to position the bolts;

[0019] Four contact plates are slidably disposed on the through groove, and one end of the contact plate is used to position the bolt when it contacts the bolt.

[0020] A driving component, located within the positioning plate, is used to drive the contact plate to slide.

[0021] Preferably, the driving component includes:

[0022] The second driven gear is rotatably disposed within the positioning plate. The second driven gear is provided with an arc-shaped groove, and one end of the contact plate abuts against the groove wall of the arc-shaped groove.

[0023] A convex ring is connected inside the positioning plate and is coaxial with the through groove. The contact plate slides on the convex ring, and the convex ring restricts the contact plate from moving out of the arc-shaped groove.

[0024] The driving component drives the second driven gear to rotate, thereby causing the contact plate to move linearly closer to or further away from the center of the convex ring during the process of contacting the groove wall of the arc-shaped groove.

[0025] Preferably, the driving element includes:

[0026] The second driving gear meshes with the second driven gear.

[0027] A drive shaft is connected to the second drive gear, the drive shaft passes through the positioning plate and is connected to a throttle.

[0028] Preferably, the convex ring is provided with a reset member for resetting the contact plate to abut against the groove wall of the arc-shaped groove, the reset member comprising:

[0029] A reset block is connected to both sides of the contact plate;

[0030] The second spring has one end connected to the reset block and the other end connected to the convex ring. An extension block is connected to the convex ring, and the extension block has a placement groove for the reset block to slide and guide the second spring.

[0031] Preferably, the drive shaft is provided with a locking element to prevent the drive shaft from rotating, the locking element comprising:

[0032] A locking gear is sleeved on the drive shaft;

[0033] The locking block is designed in an arc shape and meshes with the locking gear.

[0034] The locking lever is rotatably located on the side of the locking block away from the locking gear;

[0035] A locking seat is located on the side wall of the positioning plate and is threadedly connected to the locking rod, so that when the locking rod rotates, it drives the locking block to approach the locking gear and locks the locking gear.

[0036] Preferably, the buffer mechanism includes:

[0037] An airbag, connected to the contact plate and sliding on the positioning plate with the contact plate, is used to reduce the impact force of the punch on the side wall of the semi-autogenous mill.

[0038] A slider is connected to the airbag and slides on the positioning plate;

[0039] A slide groove is provided on the positioning plate, and a guide rod is provided in the slide groove for the slider to slide and guide the slider.

[0040] Preferably, the protective mechanism includes:

[0041] A protective plate is slidably installed on the punch to prevent bolt fragments from flying outwards when the bolt is impacted by the punch.

[0042] A push rod is connected to the end of the airbag away from the slider. When the airbag is impacted, it pushes the push rod to move, thereby pushing the protective plate to move.

[0043] Preferably, the punch is provided with an adjusting member for adjusting the position of the protective plate on the punch, the adjusting member comprising:

[0044] Two connecting blocks are attached to the inner wall of the protective plate;

[0045] The first spring has one end connected to the connecting block and the other end connected to the punch. The punch has a groove for placing the connecting block and the first spring.

[0046] Compared with the prior art, the beneficial effects of the present invention are:

[0047] 1. This invention achieves multi-directional steering adjustment of the punch by setting an adjustment mechanism, so that the punch is close to the bolts at different positions on the side wall of the semi-autogenous mill;

[0048] 2. This invention, by setting up a positioning mechanism, addresses situations where bolt diameters vary due to different degrees of wear. Through the adjustment of the arc groove and the reset component, the contact plate clamps bolts with different degrees of wear in a contact manner, thereby positioning the impact bolts.

[0049] 3. By setting up a buffer mechanism, the airbag slides along with the contact plate, and the airbag plays a buffering role when the punch impacts the bolt;

[0050] 4. The present invention provides a protective mechanism in which a push rod pushes a protective plate to slide on the punch away from the through slot, thereby preventing the protective plate from interfering with the operation of the punch and blocking the ejected bolt debris to prevent bolt debris from injuring people. Attached Figure Description

[0051] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0052] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0053] Figure 2 This is a partial structural schematic diagram of the present invention;

[0054] Figure 3 For the present invention Figure 2 Enlarged view of point A in the middle;

[0055] Figure 4 This is an internal diagram of the positioning mechanism in this invention;

[0056] Figure 5 For the present invention Figure 4 Enlarged view of point B in the middle;

[0057] Figure 6 This is a cross-sectional view of the convex ring and the extension block in this invention;

[0058] Figure 7 This is a schematic diagram of the positioning mechanism and the protective mechanism in this invention;

[0059] Figure 8 For the present invention Figure 7 Enlarged view of point C in the middle;

[0060] Figure 9 This is a connection diagram of the airbag and push rod in this invention;

[0061] Figure 10 This is a schematic diagram of the punch and protective plate in this invention;

[0062] Figure 11 This is a schematic diagram of the structure in which the connecting block and the first spring are placed in the groove in this invention.

[0063] In the picture:

[0064] 1. Base; 2. Casters; 3. Support platform; 4. Shifting cylinder; 5. Support base;

[0065] 601. First driving gear; 602. Motor; 603. First driven gear; 604. Vertical plate; 605. Hydraulic telescopic rod; 606. Rotating arm; 607. Extending arm; 608. Drive cylinder; 609. Protective plate; 610. Throttle; 611. Drive shaft; 612. Locking gear; 613. Locking block; 614. Locking rod; 615. Locking seat; 616. Punch; 617. Groove; 618. Connecting block; 619. First spring;

[0066] 701. Slide rail; 702. Guide rod; 703. Slider; 704. Airbag; 705. Push rod;

[0067] 801. Positioning plate; 802. Through groove; 803. Contact plate; 804. Second driven gear; 805. Second driving gear; 806. Arc groove; 807. Convex ring; 808. Extension block; 809. Placement groove; 810. Second spring; 811. Reset block; 812. Fixing ring; 813. Diagonal rod. Detailed Implementation

[0068] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0069] Please see Figure 1-11 A device for quickly removing liners from a semi-autogenous grinding mill includes a base 1, rollers 2 located at the lower end of the base 1, and a support platform 3 located at the upper end of the base 1, and further includes:

[0070] Punch 616, used for impact removal of bolts from the liner plate;

[0071] An adjustment mechanism, located above the base 1, is used to adjust the position of the punch 616 to impact and remove bolts in different positions;

[0072] A positioning mechanism is used to position the bolt so that the punch 616 can be aligned with the bolt;

[0073] A buffer mechanism is used to reduce the impact of the buffer head 616 on the side wall of the semi-autogenous mill when it impacts the bolts;

[0074] The protective mechanism is used to prevent injury to the human body from the debris ejected when the bolt is impacted by the 616 punch.

[0075] With this design, the roller 2 is fixedly installed at the lower end of the base 1, and the support platform 3 is fixedly connected to the upper end of the base 1.

[0076] This design allows the punch 616 to impact the bolts on the liner to remove the liner. The adjusting mechanism adjusts the position of the punch 616 to impact and remove bolts at different locations on the side wall of the semi-autogenous mill. The positioning mechanism ensures that the punch 616 is aligned with the bolt and delivers a precise impact, preventing the punch 616 from deviating. The buffering mechanism reduces the impact of the punch 616 on the side wall of the semi-autogenous mill when it impacts the bolt, preventing damage to the side wall. The protective mechanism prevents bolt fragments ejected during the impact of the punch 616 from causing injury.

[0077] In one embodiment, the adjustment mechanism includes:

[0078] The shifting cylinder 4 is installed on the upper end of the support platform 3. The output end of the shifting cylinder 4 is provided with a support seat 5. The shifting cylinder 4 is used to drive the support seat 5 to move horizontally.

[0079] Two vertical plates 604 are provided. The lower end of the vertical plate 604 is provided with a first driven gear 603. The first driven gear 603 is meshed with a first driving gear 601 and is rotatably connected to the support base 5.

[0080] A rotating arm 606 is hinged to a vertical plate 604. A hydraulic telescopic rod 605 is hinged to the rotating arm 606 and is also hinged to the vertical plate 604. The hydraulic telescopic rod 605 is used to drive the rotating arm 606 to rotate. An extension arm 607 is connected to the rotating arm 606. A drive cylinder 608 is connected to the extension arm 607. The output end of the drive cylinder 608 is connected to the punch 616 and drives the punch 616 to impact the bolt.

[0081] With this design, the shifting cylinder 4 is fixedly installed on the upper end of the support platform 3, and the support base 5 is fixedly installed on the output end of the shifting cylinder 4; the upper end of the support base 5 is provided with a mounting plate to place the motor 602, and the output shaft of the motor 602 is fixedly connected to the first driving gear 601 through a coupling; two vertical plates 604 are fixedly installed on the first driven gear 603; an extension arm 607 is fixedly connected to the rotating arm 606; the extension arm 607 is fixedly connected to the driving cylinder 608, and the output end of the driving cylinder 608 is fixedly connected to the punch 616.

[0082] With this design, the shifting cylinder 4 drives the support base 5 to move horizontally to adjust the horizontal position of the support base 5, thereby adjusting the horizontal position of the punch 616; the hydraulic telescopic rod 605 drives the rotating arm 606 to rotate, and the motor 602 drives the first driving gear 601 to rotate, thereby driving the first driven gear 603 to rotate, realizing multi-directional steering adjustment of the punch 616, so that the punch 616 is close to the bolts at different positions on the side wall of the semi-autogenous mill.

[0083] In one embodiment, the positioning mechanism includes:

[0084] The positioning plate 801 has multiple evenly distributed diagonal rods 813 connected to one side of the positioning plate 801 near the extension arm 607. The diagonal rods 813 are connected to fixing rings 812 for mounting the positioning plate 801 on the extension arm 607.

[0085] A through groove 802 is located at the center of the positioning plate 801, through which bolts pass to position the bolts;

[0086] Four contact plates 803 are slidably disposed on the through groove 802. When one end of the contact plate 803 contacts the bolt, it is used to position the bolt.

[0087] The driving component, located within the positioning plate 801, is used to drive the contact plate 803 to slide.

[0088] With this design, the fixing ring 812 is fixedly connected to the extension arm 607, one end of the diagonal rod 813 is fixedly connected to the fixing ring 812, and the other end is fixedly connected to the positioning plate 801.

[0089] In one embodiment, the driving component includes:

[0090] The second driven gear 804 is rotatably disposed in the positioning plate 801. The second driven gear 804 is provided with an arc-shaped groove 806, and one end of the contact plate 803 abuts against the groove wall of the arc-shaped groove 806.

[0091] A convex ring 807 is connected inside the positioning plate 801 and is coaxial with the through groove 802. The contact plate 803 slides on the convex ring 807 and the convex ring 807 restricts the contact plate 803 from moving out of the arc groove 806.

[0092] The driving component drives the second driven gear 804 to rotate, thereby causing the contact plate 803 to move linearly closer to or further away from the center of the convex ring 807 during the process of contacting the groove wall of the arc groove 806.

[0093] With this design, the convex ring 807 is fixedly connected inside the positioning plate 801.

[0094] In one embodiment, the driving element includes:

[0095] The second driving gear 805 is meshed with the second driven gear 804;

[0096] The drive shaft 611 is connected to the second drive gear 805. The drive shaft 611 passes through the positioning plate 801 and is connected to the throttle 610.

[0097] With this design, one end of the drive shaft 611 is fixedly connected to the second drive gear 805, and the other end is fixedly connected to the throttle 610.

[0098] In one embodiment, the convex ring 807 is provided with a reset member for resetting the contact plate 803 to abut against the groove wall of the arc-shaped groove 806. The reset member includes:

[0099] Reset block 811 is connected to both sides of contact plate 803;

[0100] The second spring 810 is connected at one end to the reset block 811 and at the other end to the convex ring 807. An extension block 808 is connected to the convex ring 807. The extension block 808 is provided with a placement groove 809 for the reset block 811 to slide and for guiding the second spring 810.

[0101] With this design, the reset block 811 is fixedly connected to the contact plate 803; the second spring 810 is fixedly connected at one end to the reset block 811 and at the other end to the convex ring 807; the convex ring 807 is fixedly connected to the extension block 808.

[0102] This design, such as Figure 4As shown, rotating the throttle 610 drives the second driving gear 805 to rotate, which in turn drives the second driven gear 804 to rotate, and the arc-shaped groove 806 also rotates. When the groove wall of the arc-shaped groove 806 presses against the contact plate 803 and moves linearly closer to the center of the convex ring 807, the second spring 810 is compressed by the reset block 811, and the end of the contact plate 803 away from the arc-shaped groove 806 clamps the bolt to position it. When the groove wall of the arc-shaped groove 806 rotates away from the contact plate 803, the second spring 810 resets, and the contact plate 803 moves linearly away from the center of the convex ring 807. At this time, the contact plate 803 still abuts against the groove wall of the arc-shaped groove 806, and thus the end of the contact plate 803 away from the arc-shaped groove 806 still clamps the bolt. In cases where bolt diameters vary due to different degrees of wear, the contact plate 803 clamps bolts with different degrees of wear by adjusting the arc groove 806 and the reset component, thereby locating the position of the impact bolt.

[0103] In one embodiment, a locking element is provided on the drive shaft 611 to prevent the drive shaft 611 from rotating. The locking element includes:

[0104] Locking gear 612 is sleeved on drive shaft 611;

[0105] The locking block 613 is arc-shaped and meshes with the locking gear 612.

[0106] The locking lever 614 is rotatably located on the side of the locking block 613 away from the locking gear 612;

[0107] The locking seat 615 is located on the side wall of the positioning plate 801 and is threadedly connected to the locking rod 614 so that when the locking rod 614 rotates, it drives the locking block 613 to approach the locking gear 612 and lock the locking gear 612.

[0108] With this design, the locking seat 615 is fixedly installed on the side wall of the positioning plate 801; by rotating the locking rod 614, the locking rod 614 drives the locking block 613 to approach the locking gear 612 until the locking block 613 meshes with the locking gear 612, thereby achieving the locking effect on the transmission shaft 611 and ensuring the stability of the contact plate 803 when clamping the bolt.

[0109] In one embodiment, the buffer mechanism includes:

[0110] Airbag 704, connected to contact plate 803 and sliding on positioning plate 801 with contact plate 803, is used to reduce the impact force of buffer head 616 on the side wall of semi-autogenous mill.

[0111] Slider 703 is connected to airbag 704 and slides on positioning plate 801;

[0112] A slide groove 701 is provided on a positioning plate 801, and a guide rod 702 is provided inside the slide groove 701 for sliding the slider 703 and guiding the slider 703.

[0113] This design, such as Figure 3 As shown, the guide rod 702 is fixedly installed in the slide groove 701; the slider 703 is fixedly connected to the airbag 704; the airbag 704 passes through the contact plate 803 and is fixedly connected to the contact plate 803.

[0114] With this design, when the positioning mechanism is positioned on the bolt, the airbag 704 contacts the side wall of the semi-autogenous mill. The airbag 704 slides along with the sliding of the contact plate 803. When the punch 616 impacts the bolt, the airbag 704 acts as a buffer. Furthermore, since the airbag 704 is close to the contact plate 803, the airbag 704 also acts as a buffer for the contact plate 803.

[0115] In one embodiment, the protective mechanism includes:

[0116] The protective plate 609 is slidably mounted on the punch 616 to prevent bolt fragments from flying outward when impacted by the punch 616;

[0117] Push rod 705 is connected to the end of airbag 704 away from slider 703. When airbag 704 is impacted, push rod 705 to move, thereby pushing protective plate 609 to move.

[0118] In this design, a telescopic tube is slidably connected at the connection between the airbag 704 and the push rod 705, and the push rod 705 is fixedly connected to the telescopic tube. When the airbag 704 contacts and is impacted by the side wall of the semi-autogenous mill, the gas inside the airbag 704 is compressed and moves towards the telescopic tube, pushing the telescopic tube to move, thereby pushing the push rod 705. When the punch 616 impacts the bolt, the push rod 705 pushes the protective plate 609 to slide on the punch 616 away from the through slot 802, so as to prevent the protective plate 609 from interfering with the operation of the punch 616. The protective plate 609 also blocks the ejected bolt debris, preventing bolt debris from injuring people.

[0119] In one embodiment, the punch 616 is provided with an adjusting member for adjusting the position of the protective plate 609 on the punch 616. The adjusting member includes:

[0120] Two connecting blocks 618 are connected to the inner wall of the protective plate 609;

[0121] The first spring 619 is connected at one end to the connecting block 618 and at the other end to the punch 616. The punch 616 is provided with a groove 617 to place the connecting block 618 and the first spring 619.

[0122] With this design, the connecting block 618 is fixedly connected to the protective plate 609; one end of the first spring 619 is fixedly connected to the connecting block 618, and the other end is fixedly connected to the punch 616; the adjusting component adjusts the position of the protective plate 609 on the punch 616 to accommodate the impact of the punch 616 on bolts of different lengths caused by different degrees of wear.

[0123] In one embodiment, it is designed as follows:

[0124] Working principle: During use, the punch 616 impacts the bolts on the liner to remove the liner. The adjusting mechanism adjusts the position of the punch 616 to impact and remove bolts at different positions on the side wall of the semi-autogenous mill. The positioning mechanism ensures that the punch 616 is aligned with the bolt and impacts it precisely, preventing the punch 616 from deviating. The buffering mechanism reduces the impact of the punch 616 on the side wall of the semi-autogenous mill when it impacts the bolt, avoiding damage to the side wall. The protective mechanism prevents bolt fragments from being ejected during the impact of the punch 616 from causing injury.

[0125] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0126] Furthermore, if the embodiments of this invention involve descriptions such as "first," "second," etc., these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where A and B are simultaneously satisfied. Furthermore, "multiple" refers to two or more. Moreover, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention. It is obvious to those skilled in the art that this invention is not limited to the details of the above exemplary embodiments, and that this invention can be implemented in other specific forms without departing from the spirit or basic characteristics of this invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within the invention.

Claims

1. A device for quick removal of a liner plate of a semi-autogenous mill, characterized in that, The utility model relates to a kind of semi-autogenous mill bolt removal device, including base (1), be equipped with the roller (2) of the lower end of the base (1) and be equipped with the support table (3) of the upper end of the base (1), further include: Punch (616) for impact demolition lining bolt; Adjusting mechanism, it is equipped with the upper of the base (1), for adjusting the position of the punch (616), to impact demolition bolt in different positions, the adjusting mechanism includes elongated arm (607); Positioning mechanism for positioning the position of bolt, for the punch (616) alignment bolt; Buffer mechanism for reducing the impact of the punch (616) on the side wall of semi-autogenous mill when impacting bolt; Protection mechanism for preventing the damage of the debris splashed when bolt is impacted by the punch (616) to human body; The positioning mechanism includes: Positioning plate (801), the side of the positioning plate (801) is connected with multiple evenly distributed inclined rods (813) close to the elongated arm (607), the inclined rod (813) is connected with the fixing ring (812) for installing the positioning plate (801) on the elongated arm (607); Through slot (802), it is equipped with the central position of the positioning plate (801), bolt passes through the through slot (802) to position bolt; Four contact plates (803), slidingly arranged on the through slot (802), one end of the contact plate (803) is used for positioning the position of bolt when being in contact with bolt; Drive assembly, arranged in the positioning plate (801), for driving the contact plate (803) to slide; The buffer mechanism includes: Air bag (704), connected to the contact plate (803) and along with the contact plate (803) sliding on the positioning plate (801), for reducing the impact force of the punch (616) on the side wall of semi-autogenous mill; Slide block (703), connected to the air bag (704) and sliding on the positioning plate (801); Slide groove (701), arranged on the positioning plate (801), the slide groove (701) is provided with guide rod (702) for guiding the sliding of the slide block (703) and guiding the slide block (703); The protection mechanism includes: Protective plate (609), slidingly arranged on the punch (616), for preventing the debris from splashing outward when bolt is impacted by the punch (616); Push rod (705), connected to the air bag (704) away from the slide block (703) end, the air bag (704) is pushed to move the push rod (705) when being impacted, to push the protective plate (609) to move.

2. A semi-autogenous mill quick release liner arrangement according to claim 1, characterised in that, The adjusting mechanism includes: Displacement air cylinder (4), installed on the upper end of the support table (3), the output end of the displacement air cylinder (4) is provided with support seat (5), and the displacement air cylinder (4) is used to drive the horizontal movement of the support seat (5). Two vertical plates (604), the lower end of the vertical plate (604) is provided with a first driven gear (603), the first driven gear (603) is engaged with a first driving gear (601), and the first driven gear (603) is rotatably connected with the support base (5); A rotating arm (606) is hinged to the vertical plate (604), a hydraulic telescopic rod (605) is hinged to the rotating arm (606), the hydraulic telescopic rod (605) is also hinged to the vertical plate (604) and used for driving the rotating arm (606) to rotate, an elongated arm (607) is connected to the rotating arm (606), a driving air cylinder (608) is connected to the elongated arm (607), and an output end of the driving air cylinder (608) is connected with the punch (616) and drives the punch (616) to impact the bolt.

3. A semi-autogenous mill quick release liner arrangement according to claim 1 wherein, The driving assembly comprises: A second driven gear (804) is rotatably arranged in the positioning plate (801), the second driven gear (804) is provided with an arc-shaped groove (806), and one end of the contact plate (803) is abutted against the groove wall of the arc-shaped groove (806); A convex ring (807) is connected in the positioning plate (801) and coaxial with the through groove (802), the contact plate (803) slides on the convex ring (807), and the convex ring (807) limits the contact plate (803) from moving out of the arc-shaped groove (806); A driving member drives the second driven gear (804) to rotate, so that the contact plate (803) moves linearly towards or away from the center of the convex ring (807) in the process of being in contact with the groove wall of the arc-shaped groove (806).

4. A semi-autogenous mill quick release liner arrangement according to claim 3, characterised in that, The driving member comprises: A second driving gear (805) is engaged with the second driven gear (804); A transmission shaft (611) is connected to the second driving gear (805), the transmission shaft (611) penetrates through the positioning plate (801) and is connected with a rotating handle (610).

5. A semi-autogenous mill quick release liner arrangement according to claim 3, characterised in that, The convex ring (807) is provided with a reset member for abutting the contact plate (803) against the groove wall of the arc-shaped groove (806), and the reset member comprises: Reset blocks (811) are connected to both sides of the contact plate (803); A second spring (810) has one end connected with the reset block (811) and the other end connected with the convex ring (807), the convex ring (807) is connected with an extension block (808), and the extension block (808) is provided with a placing groove (809) for sliding of the reset block (811) and guiding of the second spring (810).

6. A semi-autogenous mill quick release liner arrangement according to claim 4, characterised in that, The transmission shaft (611) is provided with a locking member for preventing the transmission shaft (611) from rotating, and the locking member comprises: A locking gear (612) is sleeved on the transmission shaft (611); A locking block (613) is provided in an arc shape and is engaged with the locking gear (612); A locking rod (614) is rotatably arranged on the side of the locking block (613) away from the locking gear (612). The locking seat (615) is arranged on the side wall of the positioning plate (801) and is in threaded connection with the locking rod (614) so that the locking rod (614) drives the locking block (613) to approach the locking gear (612) and lock the locking gear (612) when rotating.

7. A semi-autogenous mill quick release liner arrangement according to claim 1 wherein, The punch (616) is provided with an adjusting part for adjusting the position of the protective plate (609) on the punch (616), and the adjusting part comprises: Two connecting blocks (618) connected to the inner side wall of the protective plate (609); A first spring (619) having one end connected to the connecting block (618) and the other end connected to the punch (616), and the punch (616) is provided with a groove (617) for placing the connecting block (618) and the first spring (619).

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