Compact milling, digging and loading all-in-one machine equipment for coal mine refuge chamber

By designing a compact milling and excavation machine for coal mine refuge chambers with a folding robotic arm and variable-amplitude tracks, the construction difficulties of existing milling machines in the narrow spaces of underground coal mines have been solved, achieving efficient and multifunctional construction results.

CN223723809UActive Publication Date: 2025-12-26PINGDINGSHAN TIANAN COAL MINING +1
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Patent Information

Application Number
CN202520114832.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-12-26
Estimated Expiration
2035-01-17

AI Technical Summary

Technical Problem

Existing milling machines have excessively wide chassis and limited extension range of the robotic arm, making them unsuitable for the narrow spaces required for construction operations in coal mines, resulting in low efficiency and high labor intensity.

Method used

A compact milling and excavation machine for coal mine refuge chambers was designed. It adopts a folding robotic arm and variable-amplitude tracks, combined with a bucket assembly, to enable the machine to move flexibly through narrow spaces and carry out large-scale construction operations.

Benefits of technology

It enables efficient construction operations in the narrow spaces of underground coal mines. It is multi-functional, compact in structure, and performs well, meeting the construction needs of narrow spaces in underground coal mines.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to compact type milling, digging and loading all-in-one machine equipment for a coal mine refuge chamber, which comprises a chassis assembly, a mechanical arm assembly, a push bucket assembly, a control chamber and an electrical box, and the chassis assembly comprises a chassis body, a push shovel part, a left crawler belt assembly, a right crawler belt assembly, a thrust oil cylinder and a push shovel oil cylinder. The mechanical arm assembly comprises a transverse milling head, a milling head accessory, a locking oil cylinder, a rotary speed reducer, a fourth large arm, a bucket oil cylinder, a bucket rod oil cylinder, a third large arm, a second large arm, a swing oil cylinder, a second main arm oil cylinder, a first large arm, a first main arm oil cylinder, a mechanical arm base and a large rotary disc, the mechanical arm assembly is of a folding structure, and the milling head accessory is arranged on the locking oil cylinder; and a transverse milling head is arranged at the front end of the milling head accessory. The underground coal mine drilling machine is ingenious in design, small and exquisite in structure, convenient to use, practical, capable of conducting construction operation in a narrow space in an underground coal mine, multipurpose and good in using effect, and has good market prospects and development space compared with the prior art.
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Description

TECHNICAL FIELD

[0001] The utility model relates to underground emergency rescue equipment technical field, concretely relates to compact milling and digging and loading integrated machine equipment of coal mine refuge chamber. BACKGROUND

[0002] The refuge chamber is the important guarantee for guaranteeing personnel life safety when meeting the emergent situation as the underground emergency refuge place of coal mine. At present, the refuge chamber of high and sudden mine is limited by the underground roadway condition, the roadway width of most mines of Pingdingshan is about 4.5 meters, the sidewalk width is about 2.5 meters after installing the transport belt, the roadway height is about 3.5 meters, the channel for the equipment walking is narrower after installing the auxiliary facilities, and some are even less than 1.2 meters. Therefore, the refuge chamber of mine has no mechanical construction equipment suitable for narrow space, and can only adopt manual excavation, and the efficiency is low, and the labor intensity is big. The existing milling and digging machine products have the following disadvantages: the whole machine chassis is too wide, the mechanical arm telescopic amount is small, and is not suitable for the requirement of narrow space and large construction operation range of coal mine underground.

[0003] How to design a compact milling and digging and loading integrated machine equipment for coal mine refuge chamber, which is ingenious in design, small in structure, convenient and practical, can be used in narrow space construction of coal mine underground, one machine with multiple uses, and good in use effect is the problem to be solved at present. CONTENT OF UTILITY MODEL

[0004] In order to solve the problems that the existing milling and digging machine has the whole machine chassis too wide, the mechanical arm telescopic amount is small, and is not suitable for the requirement of narrow space and large construction operation range of coal mine underground, the utility model provides compact milling and digging and loading integrated machine equipment for coal mine refuge chamber, to realize the purpose that it is ingenious in design, small in structure, convenient and practical, can be used in narrow space construction of coal mine underground, one machine with multiple uses, and good in use effect.

[0005] The utility model discloses a compact milling and digging and loading integrated machine equipment for coal mine refuge chamber, which comprises a chassis assembly, a mechanical arm assembly, a push bucket assembly, a control room and an electrical box.

[0006] As a further optimization scheme of the compact milling and digging and loading integrated machine equipment for coal mine refuge chamber, the left track assembly and the right track assembly both adopt variable-amplitude tracks.

[0007] As a further optimization scheme of the compact milling and digging and loading integrated machine equipment for coal mine refuge chamber, the push bucket assembly comprises a push bucket body, a shovel tooth and a push bucket accessory. The shovel teeth are fixedly arranged at the lower edge of the push bucket body in parallel. The push bucket accessory is arranged at the upper end of the push bucket body. The push bucket assembly is connected with the mechanical arm assembly through the push bucket accessory.

[0008] Compared with the prior art, the utility model has the beneficial effects that:

[0009] Firstly, the utility model comprises a chassis assembly, a mechanical arm assembly, a push bucket assembly, a control room and an electrical box. The left track assembly and the right track assembly both adopt variable-amplitude tracks. When walking, the variable-amplitude tracks are retracted, so that the machine can pass through narrow tunnels conveniently. When construction work is carried out, the variable-amplitude tracks are extended, so that the stability of the machine is improved.

[0010] Secondly, the mechanical arm assembly of the utility model adopts a folding mechanical arm. The structure is compact. When the mechanical arm is retracted, the machine can pass through underground tunnels conveniently. When the mechanical arm is extended, the construction work in a large chamber space can be carried out.

[0011] The design of the quick dismounting wrench makes the dismounting of the support simple and quick, is reliable in locking, the position of the diamond pen is relatively fixed after each fixing of the moving end, and the finishing quality is more stable and reliable. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a side view structural schematic diagram of the utility model;

[0013] Figure 2 It is a bottom view (extension) structural schematic diagram of the chassis assembly;

[0014] Figure 3 It is a bottom view (retraction) structural schematic diagram of the chassis assembly;

[0015] Figure 4 It is a top view (extension) structural schematic diagram of the chassis assembly;

[0016] Figure 5 It is a top view (retraction) structural schematic diagram of the chassis assembly;

[0017] Figure 6 It is a three-dimensional structural schematic diagram of the mechanical arm assembly;

[0018] Figure 7 It is a main view structural schematic diagram of the push bucket assembly;

[0019] Figure 8 It is a side view structural schematic diagram of the push bucket assembly;

[0020] Figure 9 It is a main view structural schematic diagram of the transverse milling head;

[0021] Figure 10 It is a side view structural schematic diagram of the transverse milling head;

[0022] Figure 11 It is a top view structural schematic diagram of the milling and digging operation cleaning chamber of the utility model;

[0023] Figure 12 It is a bottom view structural schematic diagram of the milling and digging operation cleaning chamber of the utility model;

[0024] Figure 13 It is a coal gangue loading structural schematic diagram of the coal gangue cleaning operation of the utility model;

[0025] Figure 14 It is a coal gangue transfer structural schematic diagram of the coal gangue cleaning operation of the utility model;

[0026] Marked in the figure: 1, chassis assembly, 101, chassis body, 102, push shovel part, 103, left track assembly, 104, right track assembly, 105, propelling oil cylinder, 106, push shovel oil cylinder, 2, mechanical arm assembly, 201, transverse milling head, 202, milling head accessory, 203, locking oil cylinder, 204, slewing reducer, 205, fourth big arm, 206, bucket oil cylinder, 207, bucket rod oil cylinder, 208, third big arm, 209, second big arm, 210, swing oil cylinder, 211, main arm second oil cylinder, 212, first big arm, 213, main arm first oil cylinder, 214, mechanical arm base, 215, large turntable, 3, push bucket assembly, 301, push bucket body, 302, tooth, 303, push bucket accessory, 4, control room, 5, electrical box. DETAILED DESCRIPTION

[0027] The specific embodiments of the utility model will be further described in detail below with reference to the drawings.

[0028] As Figure 1 , 2 , 3, 4, 5, 6, 9, 10, Figure 1 It is the side view structure schematic drawing of the utility model; Figure 2 It is the overhead (stretch out) structure schematic drawing of chassis assembly; Figure 3 It is the overhead (retract) structure schematic drawing of chassis assembly; Figure 4 It is the overhead (stretch out) structure schematic drawing of chassis assembly; Figure 5 It is the overhead (retract) structure schematic drawing of chassis assembly; Figure 6The total mechanical arm structure is a schematic diagram of a three-dimensional structure; the compact milling, digging and loading integrated machine equipment of the coal mine refuge chamber comprises a chassis assembly 1, a mechanical arm assembly 2, a push bucket assembly 3, a control room 4 and an electrical box 5, the chassis assembly 1 comprises a chassis body 101, a push shovel part 102, a left track assembly 103, a right track assembly 104, a pushing oil cylinder 105 and a push shovel oil cylinder 106, wherein the push shovel part 102 is connected with the push bucket assembly 4 through a connecting assembly; the push shovel oil cylinder 106 is used for providing power for the push bucket assembly 4; the mechanical arm assembly 2 comprises a transverse milling head 201, a milling head accessory 202, a locking oil cylinder 203, a swing reducer 204, a fourth large arm 205, a bucket oil cylinder 206, a bucket rod oil cylinder 207, a third large arm 208, a second large arm 209, a swing oil cylinder 210, a main arm second oil cylinder 211, a first large arm 212, a main arm first oil cylinder 213, a mechanical arm base 214 and a large turntable 215, the mechanical arm assembly 2 adopts a folding structure, wherein the large turntable 215 is arranged on the chassis body 101, the bottom of the mechanical arm base 214 is fixed on the large turntable 215 through high-strength bolts, the two ends of the main arm first oil cylinder 213 are connected with the mechanical arm base 214 and the first large arm 212 through pin shafts, the two ends of the main arm second oil cylinder 211 are connected with the first large arm 212 and the second large arm 209 through pin shafts, the swing oil cylinder 210 for left and right swinging is arranged on the second large arm 209, the front end of the swing oil cylinder 210 is provided with the third large arm 208, the two ends of the bucket rod oil cylinder 207 are connected with the third large arm 208 and the fourth large arm 205 through pin shafts, the front end of the fourth large arm 205 is provided with the swing reducer 204, the two ends of the bucket oil cylinder 206 are connected with the fourth large arm 205 and the swing reducer 204 through pin shafts, the lower end of the swing reducer 204 is provided with the locking oil cylinder 203, the locking oil cylinder 203 is provided with the milling head accessory 202, and the front end of the milling head accessory 202 is provided with the transverse milling head 201.

[0029] The left track assembly 103 and the right track assembly 104 both adopt variable-amplitude tracks.

[0030] As shown in Figure 7 , 8 , Figure 7 is a main view structural schematic diagram of the push bucket assembly; Figure 8 is a side view structural schematic diagram of the push bucket assembly; the push bucket assembly 3 comprises a push bucket body 301, a toothed shovel 302 and a push bucket accessory 303, the toothed shovel 302 is fixedly arranged at the lower edge of the push bucket body 301, the push bucket accessory 303 is arranged at the upper end of the push bucket body 301, and the push bucket assembly 3 is connected with the mechanical arm assembly 2 through the push bucket accessory 303.

[0031] The following describes the parts of the utility model, the variable-amplitude track chassis: refer to Figure 2 , 3, 4, 5, retract the caterpillar belts when walking, so as to pass through narrow roadway; extend the caterpillar belts when working, so as to increase the stability of the whole machine. The mechanical arm assembly: the folding mechanical arm, compact structure, easy to pass through the underground roadway when retracted, and capable of satisfying the working operation in a large chamber space when extended. The milling head: used for milling and digging in the chamber space. The push bucket: used for transferring coal gangue.

[0032] The working process of the utility model is as follows: referring to Figure 11 、 12 , 13, 14, Figure 11 is a schematic view of the utility model for cleaning the top of the chamber during milling and digging operation; Figure 12 is a schematic view of the utility model for cleaning the bottom of the chamber during milling and digging operation; Figure 13 is a schematic view of the utility model for loading coal gangue during coal gangue cleaning operation; Figure 14 is a schematic view of the utility model for coal gangue transfer during coal gangue cleaning operation; the specific process is as follows:

[0033] (1) press the start button in the electrical box, and the machine normally operates.

[0034] (2) operate the left and right control levers in the control room, so that the mechanical arm is retracted to the walking position, then the variable amplitude caterpillar belt is retracted to the narrowest position, and the push shovel is retracted to the highest position.

[0035] (3) push the walking control handle forward, so that the milling and digging machine walks to the chamber operation site.

[0036] (4) stabilize the machine: move the milling and digging machine to the designated position, operate the two handles on the ground to extend the variable amplitude caterpillar belt to the maximum position suitable for the environment, and check whether the equipment is stable.

[0037] (5) milling head installation: quickly connect the milling head tool with the locking oil cylinder, check whether the milling head bolt fastening is firm and whether the locking oil cylinder is tensioned.

[0038] (6) milling and digging operation: adjust the mechanical arm mechanism to the starting position of the milling and digging operation, and start the milling and digging operation.

[0039] (7) coal gangue transfer: replace the milling head with the push bucket, load the coal gangue with the push bucket, rotate the large disc to the position of the roadway transport belt, and then rotate the reversing reducer to overturn the push bucket, so that the coal gangue in the push bucket is poured into the transport belt.

[0040] (8) anchor protection: according to the coal and rock layer, anchor protection is done during the chamber excavation process.

[0041] (9) move the machine and perform the next chamber operation.

[0042] a. after the whole chamber excavation and coal gangue transfer are completed, the mechanical arm is retracted to the walking position, then the variable amplitude caterpillar belt is retracted to the narrowest position, and the push shovel is retracted to the highest position.

[0043] b. clean up the host body dross and sundries, operate the track walking foot valve, move the whole machine to the next excavation chamber area. Repeat the above steps to work on the second chamber. Until all the required chamber work is completed, clean up and do a good job of protection.

[0044] The utility model discloses a design is ingenious, and the structure is small and exquisite, and convenient and practical can be in the narrow space of coal mine underground construction work, one machine multiple uses, and the use effect is good, solves the existing milling excavator and exists whole machine chassis, and the mechanical arm telescopic quantity is small, is not suitable for the problem such as the requirement of narrow space, construction work range of coal mine underground, to the prior art, has good market prospect and development space.

[0045] The preferred specific embodiments and examples of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments and examples, and various changes can be made within the knowledge range possessed by the person skilled in the art without departing from the utility model concept.

Claims

1. A compact milling, excavating and loading integrated machine equipment for coal mine refuge chamber, characterized in that: The application relates to a mechanical arm and push bucket combined machine, which comprises a chassis assembly (1), a mechanical arm assembly (2), a push bucket assembly (3), a control room (4) and an electrical box (5), the chassis assembly (1) comprises a chassis body (101), a push shovel part (102), a left track assembly (103), a right track assembly (104), a propelling oil cylinder (105) and a push shovel oil cylinder (106), wherein the push shovel part (102) is connected with the push bucket assembly (3) through a connecting assembly; the push shovel oil cylinder (106) is used for providing power for the push bucket assembly (3); the mechanical arm assembly (2) comprises a transverse milling head (201), a milling head accessory (202), a locking oil cylinder (203), a slewing reducer (204), a fourth big arm (205), a bucket oil cylinder (206), a bucket rod oil cylinder (207), a third big arm (208), a second big arm (209), a swing oil cylinder (210), a main arm second oil cylinder (211), a first big arm (212), a main arm first oil cylinder (213), a mechanical arm base (214) and a large turntable (215), the mechanical arm assembly (2) adopts a folding structure, wherein the large turntable (215) is arranged on the chassis body (101), the bottom of the mechanical arm base (214) is fixed on the large turntable (215) through high-strength bolts, the two ends of the main arm first oil cylinder (213) are respectively connected to the mechanical arm base (214) and the first big arm (212) through pin shafts, the two ends of the main arm second oil cylinder (211) are respectively connected to the first big arm (212) and the second big arm (209) through pin shafts, the swing oil cylinder (210) for left and right swinging is arranged on the second big arm (209), the third big arm (208) is arranged at the front end of the swing oil cylinder (210), the two ends of the bucket rod oil cylinder (207) are respectively connected to the third big arm (208) and the fourth big arm (205) through pin shafts, the fourth big arm (205) is arranged at the front end of the slewing reducer (204), the two ends of the bucket oil cylinder (206) are respectively connected to the fourth big arm (205) and the slewing reducer (204) through pin shafts, the locking oil cylinder (203) is arranged at the lower end of the slewing reducer (204), the milling head accessory (202) is arranged on the locking oil cylinder (203), and the transverse milling head (201) is arranged at the front end of the milling head accessory (202).

2. The compact milling, excavating, and loading integrated machine equipment for coal mine refuge chamber according to claim 1, characterized in that: The left track assembly (103) and the right track assembly (104) both adopt variable-amplitude tracks.

3. The compact milling, excavating, and loading integrated machine equipment for coal mine refuge chamber according to claim 1, characterized in that: The push bucket assembly (3) comprises a push bucket body (301), a digging tooth (302) and a push bucket accessory (303), the digging teeth (302) are fixed in parallel at the lower edge of the push bucket body (301), the push bucket accessory (303) is arranged at the upper end of the push bucket body (301), and the push bucket assembly (3) is connected with the mechanical arm assembly (2) through the push bucket accessory (303).