A grinding device and grinding method for machining track plates of tunnel boring machines

Abstract

The present invention relates to the technical field of track plate grinding, and in particular to a grinding device and a grinding method for processing track plates of a tunnel boring machine, including a grinding and dust removal mechanism, which includes a grinding table, a dust removal channel arranged below the grinding table for guiding debris and dust generated by grinding the track plates, an exhaust fan connected to one side of the dust removal channel, and a filter screen cylinder arranged in the dust removal channel, baffles are symmetrically arranged on the front and rear sides of the filter screen cylinder, and a box is arranged below the grinding table. The present invention can enable the first limit plate at the connecting end of the fixed plate to cooperate with the second limit plate to press and limit the track plate to be ground, thereby ensuring the stability of the track plate and facilitating the processing and grinding operation of the track plate, and can also intercept and filter dust and debris in the airflow through the filter screen cylinder, thereby reducing the scattering of dust during the processing of the track plate and ensuring the cleanliness of the grinding working environment.

Description

Technical Field

[0001] The invention relates to the technical field of track plate grinding, in particular to a grinding device and a grinding method for machining track plates of a tunneling machine. Background Art

[0002] The track shoe is one of the chassis parts of engineering machinery and is a kind of vulnerable part of the engineering machinery used. It is often used in engineering machinery such as bulldozers and tractors. When the track shoe is manufactured, a protruding excess metal residue, i.e. burrs, will appear on the edge of the casting. These metal residues need to be polished and cleaned in the subsequent processing before the track shoe can be used in actual production. The existing track shoe polishing equipment is usually equipped with dust removal equipment to extract the dust and debris generated during the polishing process, thereby ensuring the cleanliness of the track shoe polishing working environment. However, during the polishing dust extraction process, the filter screen often has excessive debris adhesion and clogging, and the staff needs to stop the machine to replace and maintain the filter screen, which affects the processing and polishing efficiency of the track shoe. In addition, the debris intercepted by the filter screen is inconvenient to be discharged intermittently, resulting in excessive accumulation of debris affecting the interception effect of the filter screen. Therefore, we propose a polishing device and a polishing method for the track shoe of a tunneling machine. Summary of the invention

[0003] In view of the fact that in the above-mentioned or prior art process of grinding dust extraction, the filter screen often becomes clogged due to excessive debris attachment, which requires staff to stop the machine for filter screen replacement and maintenance, thereby affecting the processing and grinding efficiency of the track plate, and the debris intercepted by the filter screen is inconvenient to remove intermittently, resulting in excessive debris accumulation affecting the interception effect of the filter screen, the present invention is proposed.

[0004] Therefore, an object of the present invention is to provide a grinding device for machining a track shoe of a tunneling machine.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a grinding device for processing track plates of a tunneling machine, comprising a grinding and dust removal mechanism, which comprises a grinding table, a dust removal channel arranged below the grinding table for guiding debris and dust generated by grinding the track plates, an exhaust fan connected to one side of the dust removal channel, and a filter screen cylinder arranged in the dust removal channel, baffles are symmetrically arranged on the front and rear sides of the filter screen cylinder, a box is arranged below the grinding table, a clamping assembly comprises a second limit plate arranged above a side of the grinding table close to the exhaust fan, and a first limit plate symmetrically arranged with the second limit plate, a fixing plate is arranged on a side of the first limit plate away from the exhaust fan, a multi-stage cylinder is arranged on a side of the box away from the exhaust fan, a chip removal mechanism, which comprises a slag removal channel, and a storage box arranged below the slag removal channel, a first slag removal groove is opened below the dust removal channel, and the lower end of the first slag removal groove is connected to the upper end of the slag removal channel.

[0006] As a preferred solution of the grinding device for processing the track plate of a tunnel boring machine of the present invention, the size of the first limit plate is the same as the size of the second limit plate, an air inlet is opened at the upper end of the grinding table, the lower part of the air inlet is connected with the upper end of the dust removal channel, and the size of the dust removal channel is larger than the size of the air inlet, a supporting mesh plate is arranged at the upper end edge of the air inlet, an oblique support rod is welded on the side of the second limit plate close to the exhaust fan, and the oblique support rod is arranged in two, one end of the oblique support rod close to the grinding table is fixedly connected to the top end of the grinding table, at least two multi-stage cylinders are arranged, and the output end of the multi-stage cylinder is fixedly connected to the inner side of the fixed plate, the filter screen cylinder is arranged in the middle part of the inner cavity of the dust removal channel, and the edge of the baffle is in contact with the edge of the filter screen cylinder.

[0007] As a preferred solution of the grinding device for processing the track plate of a tunnel boring machine of the present invention, the grinding and dust removal mechanism also includes a rotating cleaning assembly, the rotating cleaning assembly includes a fixed rod arranged in the middle part above the filter screen cylinder, a gear is arranged in the middle part of the fixed rod, a rack is arranged through the inner cavity of the box body, and the rack is arranged on the rear side of the gear, the rack is meshed with the gear, a brush strip is detachably installed on the side of the baffle away from the exhaust fan, and the brush strip is symmetrically arranged, the brush wires of the brush strip are in contact with the outer side of the filter screen cylinder, and the first slag discharge groove is arranged directly below the side of the filter screen cylinder close to the supporting mesh plate.

[0008] As a preferred solution of the grinding device for processing the track plate of a tunnel boring machine of the present invention, the upper end of the fixed rod is rotatably connected to the lower side of the grinding table close to the exhaust fan through a bearing, a plurality of support bars are welded to the lower end of the fixed rod, and the support bars are distributed in a ring shape, the lower end of the support bar is fixedly connected to the inner wall of the filter screen cylinder, and the end of the rack away from the exhaust fan is fixedly connected to the side of the fixed plate close to the multi-stage cylinder.

[0009] As a preferred solution of the grinding device for processing the track plate of a tunnel boring machine of the present invention, wherein: first through grooves are provided on both sides of the upper end of the dust removal channel, the size of the rack is matched with the size of the first through groove, and the rack is movably connected to the first through groove, a second through groove is provided on the side of the box body close to the exhaust fan, a third through groove is provided on the side of the box body close to the fixed plate, the size of the second through groove is larger than that of the third through groove, an inspection door is provided at the front end of the box body, and a grinding robot arm is provided on the upper end of the grinding table close to the inspection door.

[0010] As a preferred solution of the grinding device for processing the track plate of a tunnel boring machine of the present invention, the chip removal mechanism also includes a sealing assembly, the sealing assembly includes a sealing plate arranged in the slag discharge channel, the side of the sealing plate close to the fixed plate is rotatably connected to the inner wall of the slag discharge channel by a hinge, the inner wall of the slag discharge channel is fixedly installed with a support spring, one end of the support spring close to the sealing plate is fixedly connected to the lower end of the sealing plate, the support spring is provided with two, the lower end of the sealing plate is fixedly connected with a traction rope, the lower end of the rack close to the third through groove is provided with a traction plate, the side of the dust removal channel away from the exhaust fan is provided with a guide wheel, the traction rope passes around the guide wheel and is fixedly connected to the traction plate.

[0011] As a preferred solution of the grinding device for processing the track plate of a tunnel boring machine of the present invention, a second slag discharge groove is provided at the upper end of the storage box, the upper end of the second slag discharge groove is connected with the lower end of the slag discharge channel, an inclined surface is provided at the end of the covering plate away from the hinge, and the size of the third through groove is larger than that of the traction plate.

[0012] As a preferred embodiment of the method for grinding the track shoe of a roadheader of the present invention, wherein:

[0013] S1. Open the multi-stage cylinder, the fixed plate drives the first limit plate to move to the left, cooperates with the first limit plate to press and limit the track plate to be polished, and controls the polishing robot arm to polish the track plate;

[0014] S2. Turn on the exhaust fan to remove the track shoe grinding debris through the dust removal channel, so that the filter cylinder can filter and retain the removed debris;

[0015] S3, control the first limit plate to reset and remove the track plate, and at the same time, the fixed plate drives the rack to move, and at the same time, the rack drives the gear to rotate, so that the filter cylinder rotates and removes the debris trapped on the filter cylinder;

[0016] S4. The rack pulls the traction rope, and the traction rope drives the sealing plate to rotate downward, so as to discharge the debris accumulated on the sealing plate, which is convenient for the staff to carry out centralized processing.

[0017] The beneficial effects of the grinding device for processing the track plate of a tunnel boring machine of the present invention are as follows: the present invention can enable the first limit plate at the connecting end of the fixed plate to cooperate with the second limit plate to press and limit the track plate to be ground, thereby ensuring the stability of the track plate and facilitating the processing and grinding operation of the track plate, and can also intercept and filter the dust and debris in the air flow through the filter mesh cylinder, thereby reducing the scattering of dust during the processing of the track plate and ensuring the cleanliness of the grinding working environment.

[0018] In addition, during each process of clamping, grinding and removing the track shoe, the filter cylinder can be driven to rotate, and then the symmetrically arranged brush bars can be used to clean and discharge the debris and dust attached to the surface of the filter cylinder, thereby saving the trouble of the staff to stop the machine to clean and replace the filter cylinder, thereby improving the grinding efficiency of the track shoe.

[0019] The traction rope can also drive the covering plate to rotate downward, and at the same time compress the supporting spring to separate the left end of the covering plate from the slag discharge channel, so that the debris and dust accumulated on the top of the covering plate can be discharged downward, and the covering can also be used to block the slag discharge channel and the storage box, thereby preventing the airflow generated by the exhaust fan from entering the storage box during the grinding and dust removal of the track plate, thereby lifting the debris and dust collected in the storage box, causing dust and debris to overflow in the entire dust removal channel, and the covering plate can be opened during each track plate removal process, so that the debris and dust in the slag discharge channel can be intermittently discharged downward, avoiding excessive accumulation of debris affecting the interception effect of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0021] Figure 1 This is an overall schematic diagram of the grinding device used for processing track shoes of tunnel boring machines.

[0022] Figure 2 This is a schematic diagram of the three-dimensional internal structure of a grinding device used for processing track plates of a tunnel boring machine.

[0023] Figure 3 This is a schematic diagram of the internal structure of the grinding device used for processing the track plate of a tunnel boring machine from the front view.

[0024] Figure 4 This is a schematic diagram of the box and dust removal channel structure of the grinding device used for processing the track plate of the tunnel boring machine.

[0025] Figure 5 Grinding device for processing track shoes of tunnel boring machines Figure 3 Schematic diagram of the local enlarged structure at A in the figure.

[0026] Figure 6 This is a schematic diagram of the three-dimensional structure of the filter cylinder and rack of the grinding device used for processing the track plate of the tunnel boring machine.

[0027] Label: 100, grinding and dust removal mechanism; 101, grinding table; 102, first limit plate; 103, second limit plate; 104, diagonal support rod; 105, fixed plate; 106, multi-stage cylinder; 107, box; 108, dust removal channel; 109, air inlet; 110, support mesh plate; 111, exhaust fan; 112, filter mesh cylinder; 113, baffle; 114, brush strip; 115, fixed rod; 116, gear; 117 , support bar; 118, rack; 119, first through slot; 120, second through slot; 121, third through slot; 122, inspection door; 123, grinding robot arm; 200, chip removal mechanism; 201, slag removal channel; 202, first slag removal slot; 203, cover plate; 204, second slag removal slot; 205, storage box; 206, hinge; 207, support spring; 208, traction rope; 209, guide wheel; 210, traction plate. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0031] Example 1, reference Figures 1 to 4, which is the first embodiment of the present invention, provides a grinding device for processing track shoes of a tunnel boring machine, which can realize the extraction of dust and debris generated by grinding the track shoes, avoid the clogging of the filter cylinder, save the trouble of stopping the machine for processing, and reduce the impact of debris accumulation on the filtering effect, including a grinding and dust removal mechanism 100, which includes a grinding table 101, a dust removal channel 108 arranged below the grinding table 101 for guiding the debris and dust generated by grinding the track shoes, and also includes an exhaust fan 111 connected to one side of the dust removal channel 108, and a filter cylinder 112 arranged in the dust removal channel 108, and baffles 113 are symmetrically arranged on the front and rear sides of the filter cylinder 112. A box body 107 is arranged below the grinding table 101, and a clamping assembly includes a second limit plate 103 arranged above the side of the grinding table 101 close to the exhaust fan 111, and a first limit plate 102 symmetrically arranged with the second limit plate 103, a fixing plate 105 is arranged on the side of the first limit plate 102 away from the exhaust fan 111, a multi-stage cylinder 106 is arranged on the side of the box body 107 away from the exhaust fan 111, a chip removal mechanism 200, which includes a slag discharge channel 201, and a storage box 205 arranged below the slag discharge channel 201, a first slag discharge groove 202 is opened below the dust removal channel 108, and the lower end of the first slag discharge groove 202 is connected to the upper end of the slag discharge channel 201.

[0032] The dust removal channel 108 is fixedly installed at the bottom of the grinding table 101 by welding, the exhaust fan 111 is installed on one side of the dust removal channel 108 by bolting, the filter screen cylinder 112 is arranged in the inner cavity of the dust removal channel 108 by a movable connection, the box body 107 is fixedly connected to the grinding table 101 by welding, the second limit plate 103 is fixedly connected to the top of the grinding table 101, the storage box 205 is arranged at the bottom of the box body 107 by plugging, and the first limit plate 102 and the fixed plate 105 are fixedly connected by welding.

[0033] In this embodiment, a negative pressure airflow is generated by the exhaust fan 111, and the dust and debris generated by the grinding of the track plate are sucked into the dust removal channel 108 by the negative pressure airflow, and then the dust and debris in the airflow are intercepted and filtered by the filter cylinder 112, thereby reducing the dust scattering during the track plate processing and ensuring the cleanliness of the grinding working environment. Then, the multi-stage cylinder 106 is controlled by the control switch, and the multi-stage cylinder 106 drives the fixed plate 105 to move left, so that the first limit plate 102 at the connecting end of the fixed plate 105 cooperates with the second limit plate 103 to press and limit the track plate to be ground, thereby ensuring the stability of the track plate and facilitating the processing and grinding operation of the track plate. At the same time, the first slag discharge groove 202 and the slag discharge channel 201 cooperate to discharge the debris intercepted by the filter cylinder 112 downward, thereby avoiding the accumulation of debris on the right side of the filter cylinder 112, thereby affecting the filtering effect of the filter cylinder 112.

[0034] Specifically, the size of the first limit plate 102 is the same as that of the second limit plate 103, an air inlet 109 is opened at the upper end of the grinding table 101, and the lower part of the air inlet 109 is connected to the upper end of the dust removal channel 108, and the size of the dust removal channel 108 is larger than the size of the air inlet 109, and a supporting mesh plate 110 is arranged at the upper end edge of the air inlet 109, and a diagonal support rod 104 is welded on the side of the second limit plate 103 close to the exhaust fan 111, and the diagonal support rod 104 is arranged in two, and the end of the diagonal support rod 104 close to the grinding table 101 is fixedly connected to the top of the grinding table 101, at least two multi-stage cylinders 106 are arranged, and the output end of the multi-stage cylinder 106 is fixedly connected to the inner side of the fixed plate 105, and the filter screen cylinder 112 is arranged in the middle of the inner cavity of the dust removal channel 108, and the edge of the baffle 113 is in contact with the edge of the filter screen cylinder 112.

[0035] In this embodiment, the support mesh plate 110 is installed above the air inlet 109 by bolt fixing. During the grinding and dust removal process, the cooperation between the air inlet 109 and the support mesh plate 110 facilitates the extraction of debris and dust generated by the grinding process of the track plate directly above, and the support mesh plate 110 can support and place the track plate. At the same time, the arrangement of the diagonal support rod 104 improves the structural strength of the second limit plate 103, thereby ensuring the compression and limitation effect of the track plate. By arranging the filter screen cylinder 112 in the middle of the inner cavity of the dust removal groove, the dust and debris passing through the negative pressure airflow can be well intercepted, and in conjunction with the baffle 113 arranged in the dust removal channel 108, the gap between the filter screen cylinder 112 and the edge of the dust removal channel 108 can be blocked, thereby ensuring that the airflow passes entirely from the right side of the filter screen cylinder 112, thereby ensuring the debris interception effect in the negative pressure airflow, thereby ensuring the cleanliness of the grinding working environment.

[0036] Furthermore, the grinding and dust removal mechanism 100 also includes a rotating cleaning component, which includes a fixed rod 115 arranged in the middle above the filter screen cylinder 112, and a gear 116 is arranged in the middle of the fixed rod 115. A rack 118 is arranged through the inner cavity of the box body 107, and the rack 118 is arranged on the rear side of the gear 116. The rack 118 is meshed with the gear 116. A brush strip 114 is detachably installed on the side of the baffle 113 away from the exhaust fan 111, and the brush strip 114 is symmetrically arranged. The brush wires of the brush strip 114 are in contact with the outer side of the filter screen cylinder 112, and the first slag discharge groove 202 is arranged directly below the side of the filter screen cylinder 112 close to the supporting mesh plate 110.

[0037] In this embodiment, during the movement of the fixed plate 105, the fixed plate 105 will drive the rack 118 to follow the movement, the rack 118 will drive the gear 116 to rotate, the gear 116 drives the fixed rod 115 to rotate, and then drives the filter cylinder 112 to rotate in the dust removal channel 108. When the rack 118 moves to the left, it will drive the filter cylinder 112 to rotate counterclockwise, and vice versa, it will drive the filter cylinder 112 to rotate clockwise, and then cooperate with the symmetrically arranged brush strips 114. No matter how the filter cylinder 112 rotates, the surface of the filter cylinder 112 can be contacted and cleaned, and then the debris and dust trapped and attached to the surface of the filter cylinder 112 can be cleaned and discharged, thereby eliminating the need for cleaning. The trouble of the staff stopping the machine to clean and replace the filter screen cylinder 112 is eliminated, thereby improving the grinding efficiency of the track plate, and each time the track plate is clamped, ground and removed, the filter screen cylinder 112 is rotated twice counterclockwise and clockwise, thereby realizing two rotation cleanings of the filter screen cylinder 112, and achieving the effect of fully cleaning the filter screen cylinder 112, and the limitation of the track plate and the rotation cleaning of the filter screen cylinder 112 are completed in a linked manner, which can reduce manual intervention, thereby improving production efficiency, and then the swept debris and dust are discharged downward through the first slag discharge trough 202 arranged directly below, thereby facilitating the staff to centrally clean the debris and dust.

[0038] Preferably, the upper end of the fixed rod 115 is rotatably connected to the lower side of the grinding table 101 close to the exhaust fan 111 through a bearing, and a plurality of support bars 117 are welded to the lower end of the fixed rod 115, and the support bars 117 are distributed in a ring shape, and the lower end of the support bar 117 is fixedly connected to the inner wall of the filter screen cylinder 112, and the end of the rack 118 away from the exhaust fan 111 is fixedly connected to the side of the fixed plate 105 close to the multi-stage cylinder 106.

[0039] In this embodiment, the cooperation of the support bar 117 can ensure the stability of the connection between the fixed rod 115 and the filter screen cylinder 112, so that the fixed rod 115 can drive the filter screen cylinder 112 to rotate, thereby achieving the effect of cleaning the filter screen cylinder 112, and through the fixed connection between the fixed plate 105 and the rack 118, the rack 118 can be driven to move while the fixed plate 105 moves, thereby achieving the effect of cleaning the filter screen cylinder 112 after each grinding is completed, thereby reducing the situation where the filter screen cylinder 112 is adhered and blocked, causing poor airflow, thereby ensuring the grinding and dust removal effect of the track shoe.

[0040] It should be noted that first through slots 119 are provided on both sides of the upper end of the dust removal channel 108, the size of the rack 118 is matched with the size of the first through slot 119, and the rack 118 is movably connected to the first through slot 119, a second through slot 120 is provided on the side of the box body 107 close to the exhaust fan 111, a third through slot 121 is provided on the side of the box body 107 close to the fixed plate 105, the size of the second through slot 120 is larger than the size of the third through slot 121, an inspection door 122 is provided at the front end of the box body 107, and a grinding robot arm 123 is provided on the upper end of the grinding table 101 close to the inspection door.

[0041] In this embodiment, the inspection door 122 is rotatably connected to the front side of the box body 107 by a hinge, and the grinding robot arm 123 is fixedly connected to the upper side of the grinding table 101 by bolts, and cooperates with the first through slot 119 above the dust removal channel 108 to facilitate the left and right movement of the rack 118 in the box body 107, and cooperates with the second through slot 120 and the third through slot 121 respectively opened on the left and right sides of the box body 107 to avoid obstruction during the movement of the rack 118, thereby ensuring the left and right movement stroke of the rack 118. The provision of the inspection door 122 facilitates the staff to regularly inspect and maintain the various components in the box body 107. After the track shoe is clamped and fixed, the grinding robot arm 123 is controlled by the control switch to work, so that the grinding head on the grinding robot arm 123 processes and grinds the track shoe.

[0042] When in use, firstly, the multi-stage cylinder 106 is controlled by the control switch, and the multi-stage cylinder 106 drives the fixed plate 105 to move to the left, so that the first limit plate 102 at the connection end of the fixed plate 105 cooperates with the second limit plate 103 to press and limit the track plate to be polished, thereby ensuring the stability of the track plate and facilitating the processing and polishing operation of the track plate, and then the control switch is used to control the polishing mechanical arm 123 to work, so that the polishing head on the polishing mechanical arm 123 processes and polishes the track plate, and at the same time, the exhaust fan 111 is turned on to generate a negative pressure airflow, and the dust and debris generated by the grinding of the track plate are sucked into the dust removal channel 108 through the negative pressure airflow, and then the dust and debris in the airflow are intercepted and filtered by the filter cylinder 112, thereby reducing the dust scattering during the processing of the track plate. The cleaning condition ensures the cleanliness of the grinding working environment. During each clamping, grinding and removal process of the track shoe, the fixed plate 105 drives the rack 118 to move. When the rack 118 moves to the left, it drives the filter screen cylinder 112 to rotate counterclockwise. Conversely, when the rack 118 moves to the right, it drives the filter screen cylinder 112 to rotate clockwise, and then cooperates with the symmetrically arranged brush strips 114 to clean and discharge the debris and dust trapped on the surface of the filter screen cylinder 112, thereby eliminating the trouble of the staff to stop the machine to clean and replace the filter screen cylinder 112, thereby improving the grinding efficiency of the track shoe, and then the cleaned debris and dust are discharged through the first slag discharge trough 202 arranged directly below, so as to facilitate the staff to centrally clean the debris and dust.

[0043] Example 2, reference Figures 1 to 6 , which is the second embodiment of the present invention. Different from the previous embodiment, this embodiment provides a grinding device for processing the crawler plate of a tunnel boring machine, which solves the problem that when the slag discharge channel 201 is open when the exhaust fan 111 is working, the airflow will enter the storage box 205, thereby causing the dust and debris in the entire dust removal channel 108 to overflow. It includes a chip discharge mechanism 200 and a cover assembly. The cover assembly includes a cover plate 203 arranged in the slag discharge channel 201. The side of the cover plate 203 close to the fixed plate 105 is connected to the slag discharge channel 201 through a hinge 206. The inner wall of the slag discharge channel 201 is rotatably connected, a support spring 207 is fixedly installed on the inner wall of the slag discharge channel 201, one end of the support spring 207 close to the covering plate 203 is fixedly connected to the lower end of the covering plate 203, two support springs 207 are provided, and a traction rope 208 is fixedly connected to the lower end of the covering plate 203, a traction plate 210 is provided at the lower end of the rack 118 close to the third through groove 121, and a guide wheel 209 is provided on the side of the dust removal channel 108 away from the exhaust fan 111, and the traction rope 208 passes around the guide wheel 209 and is fixedly connected to the traction plate 210.

[0044] In this embodiment, the guide wheel 209 is installed on the outer wall of the dust removal channel 108 by welding. When the rack 118 moves to the right, the first limit plate 102 is reset, and the polished crawler shoe is removed. At this time, the exhaust fan 111 is in a closed state, and the traction plate 210 on the right side of the rack 118 will pull the traction rope 208, and the traction rope 208 drives the cover plate 203 to rotate downward, and at the same time compresses the support spring 207, so that the left end of the cover plate 203 is separated from the slag discharge channel 201, so that the debris and dust accumulated on the cover plate 203 can be discharged downward. When the crawler shoe is clamped and polished, the rack 118 moves to the left, and the traction rope 208 When traction is lost, the support spring 207 drives the cover plate 203 to return to the inner wall of the slag discharge channel 201 by virtue of the spring resilience, thereby sealing and blocking the slag discharge channel 201 and the storage box 205, preventing the airflow generated by the exhaust fan 111 from entering the storage box 205 during the track shoe grinding and dust removal process, thereby lifting up the debris and dust collected in the storage box 205, causing dust and debris to overflow in the entire dust removal channel 108, and the cover plate 203 is opened during each track shoe removal process, so that the debris and dust in the slag discharge channel 201 can be intermittently discharged, avoiding excessive accumulation of debris that affects the retention effect of the filter.

[0045] Furthermore, a second slag discharge groove 204 is opened at the upper end of the storage box 205, and the upper end of the second slag discharge groove 204 is connected to the lower end of the slag discharge channel 201. An inclined surface is provided at one end of the cover plate 203 away from the hinge 206, and the size of the third through groove 121 is larger than the size of the traction plate 210.

[0046] In this embodiment, the lower end of the slag discharge channel 201 is movably connected to the upper end of the storage box 205. By setting the left end of the covering plate 203 as an inclined surface, obstruction during the downward rotation of the covering plate 203 is avoided. The size of the third through groove 121 is larger than the size of the traction plate 210, so that when the rack 118 moves to the right, the traction plate 210 can pass through the third through groove 121, thereby ensuring the traction effect of the traction rope 208. During maintenance, the staff regularly pulls out the storage box 205 below the slag discharge channel 201, and pours out the collected debris and dust through the second slag discharge groove 204 above the storage box 205.

[0047] The rest of the structure is the same as that of Example 1.

[0048] When in use, as the rack 118 moves to the right, the first limit plate 102 is reset, and the polished crawler shoe is removed. At this time, the exhaust fan 111 is in a closed state, and the traction plate 210 on the right side of the rack 118 pulls the traction rope 208, which drives the covering plate 203 to rotate downward, and at the same time compresses the support spring 207, so that the left end of the covering plate 203 is separated from the slag discharge channel 201, so that the debris and dust accumulated on the covering plate 203 can be discharged downward. When the crawler shoe is clamped and polished, the rack 118 moves to the left, and the traction rope 208 loses traction. Due to the spring resilience, the support spring 207 drives the covering plate 203 to return to the inner wall of the slag discharge channel 201, thereby covering and blocking the slag discharge channel 201 and the storage box 205, preventing the airflow generated by the exhaust fan 111 from entering the storage box 205 during the track shoe grinding and dust removal process, thereby lifting up the debris and dust collected in the storage box 205, causing dust and debris to overflow in the entire dust removal channel 108. During maintenance, the staff regularly pulls out the storage box 205 under the slag discharge channel 201, and pours out the collected debris and dust through the second slag discharge trough 204 above the storage box 205.

[0049] Example 3, reference Figures 1 to 6 , which is the third embodiment of the present invention. Different from the previous embodiment, this embodiment provides a method for grinding the track plate of a tunnel boring machine, which solves the problem that the filter screen is often clogged by excessive debris, which requires the staff to stop the machine for replacement and maintenance of the filter screen, thereby affecting the processing and grinding efficiency of the track plate. It includes the grinding device for processing the track plate of a tunnel boring machine in the above embodiment, which includes S1, opening the multi-stage cylinder 106, the fixed plate 105 drives the first limit plate 102 to move left, cooperates with the first limit plate 102 to press and limit the track plate to be polished, and controls the grinding mechanical arm 123 to polish the track plate;

[0050] S2, turning on the exhaust fan 111, extracting the track shoe grinding debris through the dust removal channel 108, and allowing the filter cylinder 112 to filter and retain the extracted debris;

[0051] S3, control the first limit plate 102 to reset and remove the track plate, and at the same time, the fixed plate 105 drives the rack 118 to move, and at the same time, the rack 118 drives the gear 116 to rotate, so that the filter cylinder 112 rotates accordingly, and the debris trapped on the filter cylinder 112 is removed;

[0052] S4. The rack 118 pulls the traction rope 208, and the traction rope 208 drives the cover plate 203 to rotate downward, so as to discharge the debris accumulated on the cover plate 203, which is convenient for the staff to carry out centralized processing.

[0053] 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 preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A grinding device for machining track shoes of a tunnel boring machine, characterized in that: It comprises a grinding and dust removal mechanism (100), which comprises a grinding table (101), a dust removal passage (108) arranged below the grinding table (101) for guiding debris and dust from grinding the track plate, an exhaust fan (111) connected to the air outlet end of the dust removal passage (108), and a filter screen cylinder (112) arranged in the dust removal passage (108), baffles (113) are symmetrically arranged on both the front and rear sides of the filter screen cylinder (112), and a box (107) is arranged below the grinding table (101); The clamping assembly comprises a second limit plate (103) arranged above a side of the grinding table (101) close to the exhaust fan (111), and a first limit plate (102) arranged symmetrically with the second limit plate (103), a fixing plate (105) being arranged on a side of the first limit plate (102) away from the exhaust fan (111), and a multi-stage cylinder (106) being arranged on a side of the box body (107) away from the exhaust fan (111); A chip removal mechanism (200) comprising a slag removal channel (201) and a storage box (205) arranged below the slag removal channel (201); a first slag removal groove (202) is provided below the dust removal channel (108); the lower end of the first slag removal groove (202) is connected to the upper end of the slag removal channel (201); The chip removal mechanism (200) further comprises a sealing assembly, wherein the sealing assembly comprises a sealing plate (203) disposed in the slag removal channel (201), wherein a side of the sealing plate (203) close to the fixed plate (105) is rotatably connected to the inner wall of the slag removal channel (201) via a hinge (206), and a support spring (207) is fixedly mounted on the inner wall of the slag removal channel (201), and an end of the support spring (207) close to the sealing plate (203) is fixedly connected to the lower end of the sealing plate (203). Two support springs (207) are provided, a traction rope (208) is fixedly connected to the lower end of the cover plate (203), a rack (118) is provided through the inner cavity of the box body (107), a traction plate (210) is provided at the lower end of the rack (118) on a side close to the third through slot (121), a guide wheel (209) is provided on a side of the dust removal passage (108) away from the exhaust fan (111), and the traction rope (208) passes around the guide wheel (209) and is fixedly connected to the traction plate (210); The size of the first limiting plate (102) is the same as that of the second limiting plate (103); an air inlet (109) is provided at the upper end of the grinding table (101); the lower end of the air inlet (109) is connected to the upper end of the dust removal channel (108); the size of the dust removal channel (108) is larger than the size of the air inlet (109); a supporting mesh plate (110) is provided at the upper end edge of the air inlet (109); a diagonal support rod (104) is welded to a side of the second limiting plate (103) close to the exhaust fan (111); two diagonal support rods (104) are provided; one end of the diagonal support rod (104) close to the grinding table (101) is fixedly connected to the top of the grinding table (101); At least two of the multi-stage cylinders (106) are provided, and the output end of the multi-stage cylinder (106) is fixedly connected to the inner side of the fixed plate (105); the filter screen cylinder (112) is provided in the middle of the inner cavity of the dust removal passage (108), and the edge of the baffle (113) is in contact with the edge of the filter screen cylinder (112); The grinding and dust removal mechanism (100) further comprises a rotating cleaning assembly, the rotating cleaning assembly comprising a fixed rod (115) arranged in the middle of the upper part of the filter screen cylinder (112), a gear (116) being arranged in the middle of the fixed rod (115), and the rack (118) being arranged on the rear side of the gear (116), the rack (118) being meshed with the gear (116), a brush strip (114) being detachably mounted on the side of the baffle plate (113) away from the exhaust fan (111), the brush strips (114) being symmetrically arranged, the brush wires of the brush strips (114) being in contact with the outer side of the filter screen cylinder (112), the first slag discharge groove (202) being arranged directly below the side of the filter screen cylinder (112) close to the supporting mesh plate (110), and the fixed plate (105) being able to drive the rack (118) to follow the movement.

2. The grinding device for machining track shoes of a tunnel boring machine according to claim 1, characterized in that: The upper end of the fixed rod (115) is rotatably connected to the lower side of the grinding table (101) close to the exhaust fan (111) through a bearing; a plurality of support bars (117) are welded to the lower end of the fixed rod (115), and the support bars (117) are distributed in a ring shape; the lower ends of the support bars (117) are fixedly connected to the inner wall of the filter screen cylinder (112); and the end of the rack (118) away from the exhaust fan (111) is fixedly connected to the side of the fixed plate (105) close to the multi-stage cylinder (106).

3. The grinding device for machining track plates of a tunnel boring machine according to claim 2, characterized in that: A first through slot (119) is provided on both sides of the upper end of the dust removal passage (108); the size of the rack (118) matches the size of the first through slot (119), and the rack (118) is movably connected to the first through slot (119); a second through slot (120) is provided on a side of the box body (107) close to the exhaust fan (111); a third through slot (121) is provided on a side of the box body (107) close to the fixed plate (105); the size of the second through slot (120) is larger than the size of the third through slot (121); an inspection door (122) is provided at the front end of the box body (107); and a grinding mechanical arm (123) is provided on a side of the upper end of the grinding table (101) close to the inspection door (122).

4. The grinding device for machining track shoes of a tunnel boring machine according to claim 3, characterized in that: A second slag discharge groove (204) is provided at the upper end of the storage box (205), the upper end of the second slag discharge groove (204) is connected to the lower end of the slag discharge channel (201), an inclined surface is provided at one end of the cover plate (203) away from the hinge (206), and the size of the third through groove (121) is larger than the size of the traction plate (210).

5. A method for grinding a track shoe of a tunnel boring machine, characterized in that: The grinding device for processing the track plate of a tunnel boring machine as described in any one of claims 1 to 4 comprises S1, opening the multi-stage cylinder (106), the fixed plate (105) drives the first limit plate (102) to move leftward, cooperates with the first limit plate (102) to press and limit the track plate to be ground, and controls the grinding mechanical arm (123) to grind the track plate; S2, turning on the exhaust fan (111) to remove track shoe grinding debris through the dust removal channel (108), and allowing the filter cylinder (112) to filter and retain the removed debris; S3, controlling the first limit plate (102) to reset and remove the track plate, while the fixed plate (105) drives the rack (118) to move accordingly, and the rack (118) drives the gear (116) to rotate, so that the filter cylinder (112) rotates accordingly, and debris trapped on the filter cylinder (112) is removed; S4. The rack (118) pulls the traction rope (208), and the traction rope (208) drives the cover plate (203) to rotate downward, thereby discharging the debris accumulated on the cover plate (203) downward, making it convenient for the staff to carry out centralized processing.

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