Drilling machine mast polishing and grinding device

By adopting an automated control and dust collection system in the drilling rig mast polishing device, the problems of high labor intensity, low efficiency, and environmental pollution in drilling rig mast polishing have been solved, achieving efficient and safe mechanized polishing.

CN223947601UActive Publication Date: 2026-02-27XIANYANG NORTHWEST GEOLOGICAL PROSPECTING IND & TRADE CO LTD
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Patent Information

Application Number
CN202520319433.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-02-27
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

In the existing technology, polishing of drilling rig masts has the problems of high labor intensity, low work efficiency, and difficulty in guaranteeing quality. In addition, manual polishing leads to environmental pollution and safety hazards.

Method used

A drilling rig mast polishing device was designed. By fixing the polishing machine on the lead screw slide and combining it with automatic control, the polishing machine can move in three directions to achieve automatic polishing. It is also equipped with a dust collection system for dust removal.

Benefits of technology

The mechanized polishing of the drilling rig mast has been realized, reducing labor intensity, improving work efficiency and polishing quality, reducing environmental pollution and safety hazards, and increasing the automation level of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

A drilling machine mast polishing and grinding device comprises a base platform, a gantry trolley is movably arranged on the top of the base platform, an oblique angle supporting seat is arranged behind the gantry trolley, a cross-shaped sliding mechanism is arranged on the inclined face in front of the oblique angle supporting seat, and the lower portion of the cross-shaped sliding mechanism is connected with a machine arm of a polishing machine. A polishing wheel of a machine head of the polishing machine penetrates through a skylight in the top wall of the gantry trolley and moves in three directions under the action of the gantry trolley and the cross-shaped sliding mechanism to polish the drilling machine mast placed on the base platform; the polishing machine is fixed on a bottom plate of a lead screw sliding table, so that the polishing machine can linearly move relative to a sliding block on the sliding table; through automatic control, the polishing machine moves in three directions according to the designed speed, and therefore automatic polishing and grinding are conducted on a workpiece. Through the dust collecting system, dust generated by polishing and grinding is collected and fed into the dust removal equipment for dust removal treatment, environmental pollution is avoided, and harm of dust and noise to the human body is prevented. The drilling machine mast polishing and grinding device thoroughly solves the polishing and grinding problem of a drilling machine mast, achieves mechanical polishing and grinding, reduces labor intensity, improves the automation degree of equipment, reduces labor intensity of operators and improves working efficiency.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the mechanical processing technical field of drilling rig manufacturing process, concretely relates to a drilling rig mast polishing device. BACKGROUND

[0002] At present, in the drilling rig manufacturing process, the mast of the drilling rig is a thin and long important part, supports the drilling mechanism of the drilling rig, and is also the sliding track of the power head, so the surface of the mast is required to be flat and smooth, since the mast is long, usually 3-8 meters, exceeds the processing range of general grinding machines, and the prior art can only use the handheld polisher to manually polish the surface of the mast. Manual polishing has problems such as high labor intensity, low work efficiency, and difficult-to-ensure quality, which has plagued the production and manufacturing of the drilling rig. SUMMARY

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a drilling rig mast polishing device, which fixes the polisher on the bottom plate of a screw rod sliding table, so that the polisher can move linearly relative to the sliding block on the sliding table; through automatic control, the polisher moves along three directions at the designed speed, thereby automatically polishing the workpiece (drilling rig mast); through the dust collection system, the dust generated by polishing is collected and sent to the dust removal equipment for dust removal treatment, avoiding environmental pollution and preventing dust and noise from harming the human body; the utility model completely solves the polishing problem of the drilling rig mast, realizes mechanized polishing, reduces labor intensity, improves the degree of automation of the equipment, reduces the labor intensity of the operator, and improves work efficiency.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the technical scheme that:

[0005] A drilling rig mast polishing device, comprising a base platform 25, a gantry trolley 17 movably arranged on the top of the base platform 25, an inclined angle support seat 26 arranged at the rear of the gantry trolley 17, a cross sliding mechanism arranged on the inclined surface 26-1 in front of the inclined angle support seat 26, a machine arm of a polisher 2 connected through a mounting plate 8 below the front side of the cross sliding mechanism, a polishing wheel 3 of a polisher head penetrating through a skylight 17-1 in the top wall of the gantry trolley 17, under the action of the gantry trolley 17 and the cross sliding mechanism, the polishing wheel 3 moves along three directions, and a drilling rig mast 1 placed on the base platform 25 is polished.

[0006] The gantry trolley 17 is provided with a trolley moving motor 5 above it, the power output end of the trolley moving motor 5 is connected with a driving wheel 6-1 of a transmission gear pair 6, the driven wheel 6-2 of the transmission gear pair 6 is connected to the front upper part of the gantry trolley 17, the center shafts of the driven wheel 6-2 cross the gantry trolley 17 on both sides and are coaxially connected with upper synchronous pulleys 19 respectively; the gantry trolley 17 is provided with front wheels 24 and rear wheels 18 below, the outer side of the front wheels 24 is sequentially coaxially provided with a rolling gear 23 and a lower synchronous pulley 22, the lower synchronous pulley 22 is connected with the upper synchronous pulley 19 through a synchronous belt 20.

[0007] The base platform 25 is provided with parallel racks 21 on both sides of the top, the racks 21 are engaged with the rolling gears 23 of the gantry trolley 17.

[0008] The cross sliding mechanism includes a first sliding member and a second sliding member which are the same in structure, the first sliding member includes a lower lead screw sliding table 13 connected with an inclined surface 26-1 in front of the inclined angle support seat 26, a lower sliding table stepping motor 14 is arranged on the side plate of one side of the lower lead screw sliding table 13, the power output end of the lower sliding table stepping motor 14 penetrates through the side plate of one side of the lower lead screw sliding table 13 and is connected with one end of a first lead screw 13-1, the other end of the first lead screw 13-1 is rotatably connected with the side plate of the other side of the lower lead screw sliding table 13, a first sliding rod 13-2 is arranged between the two sides of the first lead screw 13-1 and the end side plates of the lower lead screw sliding table 13, the first lead screw 13-1 and the first sliding rod 13-2 are configured with first sliding blocks 12, a first threaded hole 13-3 adapted to the first lead screw 13-1 is arranged in the middle of the first sliding block 12, first through holes 13-4 adapted to the first sliding rod 13-2 are respectively arranged on both sides of the first threaded hole 13-3.

[0009] The second sliding member includes a second sliding block 11 connected with the first sliding block 12 in a direction perpendicular thereto, a second threaded hole 9-3 is arranged in the middle of the second sliding block 11, a second lead screw 9-1 adapted thereto is connected in the middle of the second threaded hole 9-3, second through holes 9-4 are respectively arranged on both sides of the second threaded hole 9-3, a second sliding rod 9-2 adapted thereto is arranged in the middle of the second through holes 9-4, the second sliding rod 9-2 is fixedly connected between the end side plates of an upper lead screw sliding table 9, one end of the second lead screw 9-1 is rotatably connected with the side plate of one side of the upper lead screw sliding table 9, the other end of the second lead screw 9-1 is connected with the power output end of an upper sliding table stepping motor 10 through a shaft coupling penetrating through the side plate of the other side of the upper lead screw sliding table 9.

[0010] The polishing machine 2 adopts an electric polishing machine, is installed on the smooth surface of the upper lead screw sliding table 9 through the mounting plate 8 and is close to the lower side.

[0011] The inclination angle of the inclined surface 26-1 in front of the inclined angle support seat 26 is self-defined.

[0012] The dust collecting hopper 15 is connected to the rear of the gantry trolley 17, and the small opening of the dust collecting hopper 15 is externally connected to a dust removal device through a dust removal pipeline 16.

[0013] The motor controllers of the trolley moving motor 5, the upper slide table stepping motor 10 and the lower slide table stepping motor 14 are connected to the microcomputer controller 7 through wires, and the polishing machine 2 is automatically controlled to move along three directions at a pre-designed speed, so that the drilling rig mast is automatically polished and ground.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. Work efficiency: after the electric polishing machine 2 is powered on, the cylindrical polishing wheel 3 will rotate; the gantry trolley 17 moves forward and backward under the driving of the trolley moving motor 5; the upper lead screw slide table 9 moves up and down under the driving of the upper slide table stepping motor 10; the first sliding block 12 moves left and right under the driving of the lower slide table stepping motor 14; and then the electric polishing machine 2 can be driven to move in three directions, so that the cylindrical polishing wheel 3 contacts the drilling rig mast 1 (workpiece) and polishes and grinds the surface of the drilling rig mast 1. The manual polishing and grinding of the drilling rig mast 1 is changed into mechanical and automatic polishing and grinding, the work efficiency is greatly improved, the work load of more than 20 hours is reduced to less than 2 hours, the labor intensity is greatly reduced, and the operator can be away from the polishing and grinding area to avoid the interference of vibration and noise.

[0016] 2. Polishing and grinding quality: the motor controllers of the trolley moving motor 5, the upper slide table stepping motor 10 and the lower slide table stepping motor 14 are connected to the microcomputer controller 7 through wires, and the polishing machine 2 is automatically controlled to move along three directions at a pre-designed speed, so that the drilling rig mast is automatically polished and ground; since mechanical and automatic polishing and grinding are realized, the polishing and grinding efficiency is high, and the polishing and grinding quality is excellent. Compared with manual polishing and grinding, the polished drilling rig mast has a smooth and flat surface and neat and beautiful polishing lines. After the mast is installed and used, the power head slides flexibly, and the movement precision is greatly improved.

[0017] 3. Safety and environmental protection: the polishing machine 2 is located in the gantry trolley, and completely realizes mechanical and automatic polishing and grinding, so that manual operation is not needed, the safety of the drilling rig mast polishing and grinding is greatly improved, and noise is isolated to a certain extent; the rear connecting dust removal device collects dust and other measures, so that environmental pollution is avoided, and the harm of an unhealthy working environment to the human body is eliminated.

[0018] 4, Equipment performance: through the gantry trolley 17 and the cross slide mechanism, three direction dimensions of the polishing machine 2 are provided with movement space, field operation is more flexible, automation control and dust removal device are provided, so that the overall function applicability of the device is stronger; the utility model runs through integrated innovation concept, modular design, utilizes modern control technology, realizes the automatic polishing of the drilling rig mast, the equipment is reliable in quality, runs stably, is safe and efficient, the utility model is used for the polishing of the drilling rig mast, and is also used for the surface polishing of other similar workpieces.

[0019] In conclusion, the utility model greatly improves work efficiency, improves polishing quality, is safe and environmentally friendly, excellent in performance, and has high practical value. ACCURACY OF DRAWINGS

[0020] Figure 1 It is a structural schematic view of the drilling rig mast polishing device of the utility model.

[0021] Figure 2 It is a structural schematic view of the base platform 25 of the utility model.

[0022] Figure 3 It is a structural schematic view of the gantry trolley 17 and the upper inclined angle support seat 26 thereof.

[0023] Figure 4 It is a structural schematic view of the cross slide mechanism.

[0024] Figure 5 It is a structural schematic view of the polishing machine 2.

[0025] Figure 6 It is a structural schematic view of the upper lead screw sliding table 9.

[0026] In the figure: 1---drilling rig mast, 2---electric polisher, 3---polishing wheel, 4---transmission shaft, 5---carriage moving motor, 6---transmission gear pair, 6-1---driving wheel, 6-2---driven wheel, 7---microcomputer controller, 8---mounting plate, 9---upper screw sliding table, 9-1---second screw rod, 9-2---second sliding rod, 9-3---second threaded hole, 9-4---second through hole, 10---upper sliding table stepping motor, 11---upper sliding table sliding block, 12---lower sliding table sliding block, 13---lower screw sliding table, 13-1---first screw rod, 13-2---first sliding rod, 13-3---first threaded hole, 13-4---first through hole, 14---lower sliding table stepping motor, 15---dust collection hopper, 16---dust removal pipeline, 17---gantry carriage, 17-1---roof window, 18---carriage rear wheel, 19---upper synchronous pulley, 20---synchronous belt, 21---rack, 22---lower synchronous pulley, 23---rolling gear, 24---carriage front wheel, 25---base platform, 26---inclined angle support seat, 26-1---inclined surface. DETAILED DESCRIPTION

[0027] The utility model will be made further detailed explanation in combination with the drawings below.

[0028] Referring to Figure 1 , Figure 2 , Figure 5 , a kind of drilling rig mast polishing device, including base platform 25, base platform 25 top mobile setting has gantry carriage 17, the rear of the gantry carriage 17 is equipped with inclined angle support seat 26, the inclined surface 26-1 of the front of inclined angle support seat 26 is equipped with cross-sliding mechanism, the front side below of cross-sliding mechanism is connected with the arm of polisher 2 by mounting plate 8, the polishing wheel 3 of polisher head passes through the roof window 17-1 of the top wall of gantry carriage 17, under the action of gantry carriage 17 and cross-sliding mechanism, three directions follow movement, polish the drilling rig mast 1 placed on base platform 25.

[0029] Referring to Figure 3 , the top of the gantry carriage 17 is equipped with car moving motor 5, the power output end of car moving motor 5 is connected with the driving wheel 6-1 of transmission gear pair 6 through shaft coupling, the driven wheel 6-2 shaft of transmission gear pair 6 is connected to the front upper portion of gantry carriage 17, and the center shaft of driven wheel 6-2 is transversely connected with upper synchronous pulley 19 on both sides of gantry carriage 17 respectively. The front wheel 24 and the rear wheel 18 are arranged below the gantry carriage 17, the rolling gear 23 and the lower synchronous pulley 22 are sequentially coaxially arranged on the outer side of the front wheel 24, and the lower synchronous pulley 22 is connected with the upper synchronous pulley 19 through the synchronous belt 20. Under the driving of car moving motor 5, the polisher 2 can move forward and backward along with the gantry carriage.

[0030] Referring to Figure 1 , Figure 2 , the base platform 25 top two sides are provided with parallel rack 21, rack 21 and rolling gear 23 of gantry car 17 meshing.

[0031] Referring to Figure 4 , the cross slide mechanism includes a first slide and a second slide with the same structure, the first slide includes a lower screw sliding table 13 connected with the inclined surface 26-1 in front of the inclined support seat 26, a lower sliding table stepping motor 14 is arranged on the side plate of one side of the lower screw sliding table 13, the power output end of the lower sliding table stepping motor 14 passes through the side plate of one side of the lower screw sliding table 13 and is connected with one end of the first screw rod 13-1 through the shaft coupling, the other end of the first screw rod 13-1 is connected with the side plate of the other side of the lower screw sliding table 13, the first slide rod 13-2 is arranged between the two sides of the first screw rod 13-1 and the end side plates of the lower screw sliding table 13, the first slide rod 13-2 and the first screw rod 13-1 are connected with the first sliding block 12, the first threaded hole 13-3 adapted to the first screw rod 13-1 is arranged in the middle of the first sliding block 12, and the first through hole 13-4 adapted to the first slide rod 13-2 is arranged on both sides of the first threaded hole 13-3. Under the drive of the lower sliding table stepping motor 14, the polishing machine 2 can move left and right along with the cross slide mechanism.

[0032] Referring to Figure 3 , the inclined support seat 26 can be designed as a column structure with a triangular or right trapezoidal shape according to the situation, the inclined surface 26-1 is connected with the lower screw sliding table 13 of the first slide, and the inclined support seat 26 can be welded by angle steel or steel plate.

[0033] Referring to Figure 6 , the second slide includes a second sliding block 11 connected with the first sliding block 12 in a direction perpendicular to the first sliding block 12, a second threaded hole 9-3 is arranged in the middle of the second sliding block 11, a second screw rod 9-1 adapted to the second threaded hole 9-3 is connected in the middle of the second threaded hole 9-3, second through holes 9-4 are arranged on both sides of the second threaded hole 9-3, a second slide rod 9-2 adapted to the second through holes 9-4 is arranged in the middle of the second through holes 9-4, the second slide rod 9-2 is fixedly connected between the end side plates of the upper screw sliding table 9, one end of the second screw rod 9-1 is rotatably connected with one side side plate of the upper screw sliding table 9, and the other end of the second screw rod 9-1 is connected with the power output end of the upper sliding table stepping motor 10 through the shaft coupling passing through the other side side plate of the upper screw sliding table 9. Under the drive of the upper sliding table stepping motor 10, the polishing machine 2 can move up and down along with the cross slide mechanism.

[0034] The polishing machine 2 adopts an electric polishing machine, and specific models are, for example, a large trend wire drawing machine (polishing machine) DQ-01; the polishing machine 2 is installed on the smooth surface of the upper screw sliding table 9 through the mounting plate 8.

[0035] The tilt angle of the inclined surface 26-1 in front of the inclined support 26 can be customized, allowing for more flexible adjustment according to polishing needs.

[0036] The gantry trolley 17 is connected to the rear of a dust collection hopper 15 with a large opening. The dust collection hopper 15 has a small opening connected to an external dust removal device via a dust removal pipe 16, which is safe and environmentally friendly and improves the working environment.

[0037] The motor controllers of the trolley moving motor 5, the upper slide stepper motor 10, and the lower slide stepper motor 14 are connected to the microcomputer controller 7 via wires, automatically controlling the polishing machine 2 to move in three directions at a pre-designed speed to automatically polish the drilling mast.

[0038] The working principle of this utility model is as follows:

[0039] 1. Polishing wheel rotation:

[0040] When the electric polishing machine 2 is powered on, the cylindrical polishing wheel 3 will rotate. The gantry trolley 17 moves back and forth under the drive of the trolley moving motor 5; the upper lead screw slide 9 moves up and down under the drive of the upper slide stepper motor 10; the first slider 12 moves left and right under the drive of the lower slide stepper motor 14; thus, the electric polishing machine 2 can be driven to move in three directions. When the cylindrical polishing wheel 3 contacts the drill mast 1 (workpiece), it will polish the surface of the drill mast 1.

[0041] 2. Polishing wheel 3 moves up and down as needed:

[0042] The polishing machine 2 is fixed on the upper lead screw slide 9 by the mounting plate 8. When the upper lead screw slide 9 moves up and down relative to the upper slide slider 11 under the drive of the upper slide stepper motor 10, the cylindrical polishing wheel 3 moves up and down synchronously to control its polishing depth.

[0043] 3. Polishing wheel 3 moves left and right:

[0044] Since the upper slide block 11 and the lower slide block 12 are connected together by the slide block, when the lower lead screw slide 13 is driven by the lower slide stepper motor 14 to move the two slide blocks left and right, the upper lead screw slide 9, the polishing machine 2 and the cylindrical polishing wheel 3 move left and right synchronously, thereby controlling its transverse polishing feed on the drilling mast 1.

[0045] 4. Polishing wheel 3 moves back and forth as needed:

[0046] The lower screw slide table 13 is fixed on the portal trolley 17, the portal trolley 17 is provided with two trolley front wheels 24 and two trolley rear wheels 18, when the trolley moving motor 5 rotates, the transmission shaft 4 is rotated through the transmission gear pair 6, the upper synchronous pulley 19 fixed on both ends of the transmission shaft 4 rotates, the lower synchronous pulley 22 is rotated through the synchronous belt 20, the rolling gear 23 fixed with the lower synchronous pulley 22 rotates, the rolling gear 23 meshes with the rack 21, since the rack 21 is fixed on the platform 25 and does not move, when the rolling gear 23 fixed on the portal trolley 17 rotates, the portal trolley 17 will move forward or backward, so that the electric polishing machine 2 and the cylindrical polishing wheel 3 move forward or backward, thereby controlling the longitudinal polishing feeding of the drilling rig mast 1.

[0047] 5. Dust collection and treatment:

[0048] The portal trolley 17 is closed on both sides to prevent dust diffusion, the portal trolley rear is provided with a dust collection hopper 15, dust generated in the polishing process can be collected and then transported to a dust removal device through a dust removal pipeline 16 for dust removal treatment, thereby avoiding environmental pollution and preventing the harm of dust and noise to human bodies.

[0049] The above examples are only used for illustrating the utility model, and are not used for limiting the utility model, ordinary skilled in the art related to this technical field can also make various changes and modifications without departing from the spirit and scope of the utility model, therefore all equivalent technical solutions also belong to the scope of the utility model, the protection scope of the utility model should be defined by the claims.

Claims

1. A drilling mast polishing device, comprising a base platform (25), a gantry trolley (17) is movably mounted on the top of the base platform (25), an angled support seat (26) is provided behind the gantry trolley (17), a cross sliding mechanism is provided on the inclined surface (26-1) in front of the angled support seat (26), the arm of a polishing machine (2) is connected to the lower front side of the cross sliding mechanism via a mounting plate (8), the polishing wheel (3) of the polishing machine head passes through the skylight (17-1) on the top wall of the gantry trolley (17), and moves in three directions under the action of the gantry trolley (17) and the cross sliding mechanism to polish the drilling mast (1) placed on the base platform (25).

2. The drilling rig mast polishing device according to claim 1, characterized in that, The gantry trolley (17) is equipped with a trolley moving motor (5) above it. The power output end of the trolley moving motor (5) is connected to the driving wheel (6-1) of the transmission gear pair (6). The driven wheel (6-2) of the transmission gear pair (6) is connected to the upper front part of the gantry trolley (17). The two ends of the central shaft of the driven wheel (6-2) pass through the two sides of the gantry trolley (17) and are coaxially connected to the upper synchronous pulley (19). The gantry trolley (17) is equipped with a front wheel (24) and a rear wheel (18) below it. The outer side of the front wheel (24) is coaxially equipped with a rolling gear (23) and a lower synchronous pulley (22). The lower synchronous pulley (22) is connected to the upper synchronous pulley (19) through a synchronous belt (20).

3. The drilling rig mast polishing device according to claim 1, characterized in that, The base platform (25) has parallel racks (21) on both sides of its top, and the racks (21) mesh with the rolling gears (23) of the gantry trolley (17).

4. The drilling rig mast polishing device according to claim 1, characterized in that, The cross sliding mechanism includes a first sliding member and a second sliding member with identical structures. The first sliding member includes a lower lead screw slide (13) connected to the inclined surface (26-1) in front of the angled support (26). A lower slide stepper motor (14) is provided on one side plate of the lower lead screw slide (13). The power output end of the lower slide stepper motor (14) passes through one side plate of the lower lead screw slide (13) and is connected to one end of the first lead screw (13-1). The other end of the first lead screw (13-1) is connected to the lower lead screw slide (13-1). 13) The side plate on the other side is rotatably connected. A first slide rod (13-2) is provided between the two sides of the first lead screw (13-1) and the two ends of the lower lead screw slide (13). A first slider (12) is provided on the first lead screw (13-1) and the first slide rod (13-2). A first threaded hole (13-3) adapted to the first lead screw (13-1) is provided in the middle of the first slider (12). A first through hole (13-4) adapted to the first slide rod (13-2) is provided on both sides of the first threaded hole (13-3).

5. A drilling rig mast polishing device according to claim 4, characterized in that, The second sliding member includes a second slider (11) that is perpendicularly connected to the first slider (12). The second slider (11) has a second threaded hole (9-3) in the middle. A matching second lead screw (9-1) is connected in the middle of the second threaded hole (9-3). Second through holes (9-4) are provided on both sides of the second threaded hole (9-3). A matching second slide rod (9-2) is provided in the middle of the second through hole (9-4). The two ends of the second slide rod (9-2) are fixedly connected between the two side plates of the upper lead screw slide (9). One end of the second lead screw (9-1) is rotatably connected to one side plate of the upper lead screw slide (9). The other end of the second lead screw (9-1) is connected to the power output end of the upper slide stepper motor (10) through the other side plate of the upper lead screw slide (9) via a coupling.

6. The drilling rig mast polishing device according to claim 1, characterized in that, The polishing machine (2) is an electric polishing machine, which is mounted on the upper lead screw slide (9) near the bottom via a mounting plate (8).

7. The drilling rig mast polishing device according to claim 1, characterized in that, The tilt angle of the inclined surface (26-1) in front of the inclined support (26) can be customized.

8. A drilling rig mast polishing device according to claim 1, characterized in that, The gantry trolley (17) is connected to the large opening of a dust collection hopper (15) at the rear, and the small opening of the dust collection hopper (15) is connected to a dust removal device via a dust removal pipe (16).

9. A drilling rig mast polishing device according to claim 2, characterized in that, The motor controllers of the trolley moving motor (5), the upper slide stepper motor (10), and the lower slide stepper motor (14) are connected to the microcomputer controller (7) through wires, so that the polishing machine (2) can be automatically controlled to move in three directions at a pre-designed speed to automatically polish the drilling mast.