Chassis structure and cantilever type driving and anchoring machine comprising same

Abstract

The utility model provides a chassis structure and a cantilever type driving anchor machine comprising the same, and belongs to the technical field of coal mine tunnel driving equipment. Comprising a rack assembly, a stabilizing device and a sliding mechanism. The rack assembly comprises a rack body, a left walking mechanism and a right walking mechanism, wherein the left walking mechanism and the right walking mechanism are arranged on the two sides of the rack body respectively. The two stabilizing devices are arranged at intervals along the same side with the left walking mechanism and the right walking mechanism. An included angle is formed between the supporting part of the single group of stabilizing devices and the displacement direction of the rack assembly; the sliding mechanism is arranged between the left walking mechanism and the right walking mechanism. The cutting part can be matched with a cutting mechanism in the cantilever type miner-bolter and can slide integrally after being matched with the cutting mechanism, meanwhile, the stabilizing device with an inclined supporting function is provided, the structural strength of the cutting part can be guaranteed, and the stability of a machine body in the slotting and cutting process can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine roadway tunneling equipment, and relates to a chassis structure, in particular to a chassis structure suitable for the integral telescopic cutting and a boom-type roadheader including the chassis structure. Background Art

[0002] A boom-type roadheader is an important equipment for coal mine roadway tunneling. Compared with a conventional drum-type roadheader, the fuselage and the cutting part of the boom-type roadheader are smaller in volume, have better flexibility in controlling the size of the excavation surface, and have better hard rock tunneling performance, and are more suitable for semi-coal rock roadway tunneling.

[0003] In order to realize the cutting action, the cutting mechanism of the boom-type roadheader needs to have a telescopic action function. The current solutions in the market are mainly divided into two categories. One category is to set a sliding pair between the cutting head and the cutting boom, and connect the cutting head and the cutting boom through an oil cylinder; the other category is to provide a sliding mechanism on the cutting boom, and connect the cutting boom and the chassis through an oil cylinder. For the design of the active telescopic cutting head, its disadvantage is that the telescopic mechanism weakens the structural strength of the cutting head part, and the deformation and failure of the telescopic mechanism are relatively common. For the design of the overall sliding of the cutting boom, for example, a structure of the overall sliding of the cutting boom provided by the patent with the publication number of CN220378266U, this structure ensures the strength of the cutting mechanism, but the lifting weight is large during assembly, and the assembly safety and installation convenience are not high enough.

[0004] In addition, since the volume of the boom-type roadheader is relatively smaller and the weight is lighter than that of the conventional roadheader, during the cutting or cutting action, the fuselage is more likely to shake left and right or retreat. Using outriggers for support during cutting can reduce the problem of fuselage shaking, but the outriggers of the current roadheaders are mostly vertically telescopic, and the support effect that can be provided for the lateral force received during the cutting action is relatively limited. Content of the Utility Model

[0005] The utility model provides a chassis structure, which includes a frame assembly, a stabilizing device and a sliding mechanism;

[0006] The frame assembly includes a frame main body and a left traveling mechanism and a right traveling mechanism respectively arranged on both sides of the frame main body. The left traveling mechanism and the right traveling mechanism are both movably connected to the frame main body;

[0007] The stabilizing device is provided with two groups which are respectively arranged at intervals along the same side of the left traveling mechanism and the right traveling mechanism; and the supporting part of a single group of stabilizing device is arranged at an angle with the displacement direction of the frame assembly;

[0008] The sliding mechanism is arranged between the left traveling mechanism and the right traveling mechanism, and the sliding mechanism is simultaneously connected to the main body of the frame, the fixed end of the left traveling mechanism, and the fixed end of the right traveling mechanism.

[0009] Optionally, a single set of the stabilizing device includes a rotary drive member, a support drive member, a support base, and a support pin;

[0010] One end of the rotary drive member is connected to the main body of the frame, and the other end of the rotary drive member is connected to one end of the support drive member;

[0011] The other end of the support drive member is hinged to the support base;

[0012] The support pin and the support base form a support portion, and the support pin is arranged at one end of the support base away from the support drive member.

[0013] Optionally, one end of the support base for installing the support pin is set as an arc surface structure.

[0014] Optionally, one end of the support pin away from the support base is set as a cone structure.

[0015] Optionally, there is at least one set of the rotary drive member and the support drive member in a single set of the stabilizing device that are arranged in one-to-one correspondence;

[0016] When there is more than one rotary drive member and support drive member in a single set of the stabilizing device, one end of each single rotary drive member is connected to the main body of the frame, the other end of each single rotary drive member is connected to one end of a single support drive member, and the other ends of multiple support drive members are simultaneously connected to the support base.

[0017] Optionally, the central axis of a single support pin forms an angle of 10° - 80° with the displacement direction of the frame assembly.

[0018] Optionally, the sliding mechanism includes a sliding platform, the fixed end of the sliding platform is connected to the main body of the frame, and the movable end of the sliding platform is simultaneously connected to the fixed ends of the left traveling mechanism and the right traveling mechanism.

[0019] The present utility model further provides a cantilever type roadheader, including a cutting mechanism and the chassis structure as described above;

[0020] The cutting mechanism is installed on the sliding platform in the sliding mechanism, the fixed end of the sliding platform is simultaneously connected to the main body of the frame, the fixed ends of the left traveling mechanism, and the fixed ends of the right traveling mechanism, and the driving end of the sliding platform is connected to the cutting mechanism.

[0021] Compared with the prior art, the present utility model has the following beneficial effects:

[0022] The chassis structure for a cantilever roadheader provided by the present utility model includes a frame assembly, a stabilizing device, and a sliding mechanism, which can be adapted to the cutting mechanism in the cantilever roadheader and can achieve overall sliding after cooperating with the cutting mechanism. At the same time, a stabilizing device with an oblique support function is provided, which can ensure the structural strength of the cutting part and improve the stability of the fuselage during the grooving and cutting processes.

[0023] In addition to the purposes, features, and advantages described above, the present utility model has other purposes, features, and advantages. The following will refer to the drawings for a further detailed description of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0025] Figure 1 is a schematic structural diagram of a chassis structure in an embodiment of the present utility model;

[0026] Figure 2 is Figure 1 a schematic structural diagram of the middle support device;

[0027] Figure 3 is a schematic diagram after a chassis structure in an embodiment of the present utility model is connected to the cutting mechanism in a roadheader including the chassis structure.

[0028] Wherein:

[0029] 1. Frame assembly, 11. Right traveling mechanism, 12. Left traveling mechanism, 2. Stabilizing device, 21. Rotating driving member, 22. Supporting driving member, 23. Supporting base, 24. Supporting nail, 3. Sliding mechanism, 31. Sliding platform, 4. Cutting mechanism. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] In order to make the above purposes, features, and advantages of the present utility model more clearly understood, the following will give a detailed description of the specific embodiments of the present utility model with reference to the drawings. It should be noted that the drawings of the present utility model are all in simplified forms and use non-precise scales, only for facilitating and clearly assisting in the description of the embodiments of the present utility model; the several mentioned in the present utility model are not limited to the specific quantities in the drawing examples; the orientation or positional relationships indicated by 'front','middle', 'back', 'left', 'right', 'up', 'down', 'top', 'bottom','middle', etc. in the present utility model are all based on the orientation or positional relationships shown in the drawings of the present utility model, and do not indicate or imply that the devices or components referred to must have a specific orientation, nor can they be understood as a limitation to the present utility model.

[0031] Embodiment:

[0032] Referring to Figure 1 and Figure 2 as shown, a chassis structure for a cantilever roadheader-anchoring machine provided by the present utility model includes a frame assembly 1, a stabilizing device 2, and a sliding mechanism 3;

[0033] The frame assembly 1 includes a frame main body, a left traveling mechanism 12 and a right traveling mechanism 11 respectively arranged on both sides of the frame main body. The left traveling mechanism 12 and the right traveling mechanism 11 are both movably connected to the frame main body, and the left traveling mechanism 12 and the right traveling mechanism 11 are synchronously driven to drive the frame main body to displace;

[0034] The stabilizing device 2 is provided with two groups respectively arranged on both sides of the frame main body, and the two groups of stabilizing devices 2 are respectively arranged at intervals with the left traveling mechanism 12 and the right traveling mechanism 11;

[0035] The sliding mechanism 3 is arranged between the left traveling mechanism 12 and the right traveling mechanism 11, and the sliding mechanism 3 is simultaneously connected to the frame main body, the fixed end of the left traveling mechanism 12, and the fixed end of the right traveling mechanism 11.

[0036] Furthermore, the left traveling mechanism 12 and the right traveling mechanism 11 are both preferably arranged as crawler traveling structures.

[0037] Furthermore, a single group of the stabilizing device 2 includes a rotation driving member 21, a support driving member 22, a support base 23, and a support nail 24. One end of the rotation driving member 21 is connected to the frame main body, the other end of the rotation driving member is connected to one end of the support driving member 22, and the other end of the support driving member 22 is hinged to the support base 23; the support nail 24 is connected to the support base 23, and at least one support nail 24 is provided on a single support base 23.

[0038] Preferably, the rotation driving member 21 is preferably arranged as any one of driving structural members such as a rotary oil cylinder, a rotary air cylinder, a rotary disk, or a motor.

[0039] Preferably, the support driving member 22 is preferably arranged as any one of driving structural members such as a support oil cylinder, a support air cylinder.

[0040] Preferably, the support base 23 is preferably arranged in an arc-shaped plate structure, and at least one support base 23 is provided. When the roadheader with this cantilever roadheader chassis has multiple support devices, multiple support cylinders 22 can be hinged on the same support base 23 or can be respectively hinged on different support bases 23. Further preferably, the end of the support nail 24 away from the support base 23 is arranged in a cone structure, and the smaller end of the cone structure extends in the direction away from the support base 23 so as to be able to easily anchor into the tunnel wall, thereby increasing the support strength.

[0041] Preferably, the driving displacement direction of a single support driving member 22 and the displacement direction of the frame assembly 1 are arranged at an angle of 10° - 80° (that is, the central axis of a single support nail 24 and the displacement direction of the frame assembly 1 are arranged at an angle of 10° - 80°) to reduce the resistance when the support nail anchors into the tunnel wall.

[0042] Furthermore, the sliding mechanism 3 includes a sliding platform 31. The fixed end of the sliding platform 31 is connected to the frame body, and the movable end of the sliding platform 31 is simultaneously connected to the fixed ends of the left traveling mechanism 12 and the right traveling mechanism 11, so that relative displacement can occur between the frame body and the fixed ends of the left traveling mechanism 12 and the right traveling mechanism 11.

[0043] As a further embodiment of the present invention, as shown in Figure 3 shown, the present invention also provides a roadheader with the above-mentioned chassis, including a cutting mechanism 4. The cutting mechanism 4 is installed on the sliding platform 31 in the sliding mechanism 3. The fixed end of the sliding platform 31 is simultaneously connected to the frame body, the left traveling mechanism 12, and the right traveling mechanism 13, and the driving end of the sliding platform 31 is connected to the cutting mechanism. Since the sliding mechanism and the cutting mechanism 4 are separated, when hoisting the cutting mechanism 4, the hoisting weight can be reduced by about 50%, which can greatly improve the hoisting safety.

[0044] Preferably, the roadheader with the above-mentioned chassis, in addition to including the cutting mechanism 4 and the chassis structure, other structures refer to the prior art.

[0045] The cutting mechanism 4 of the roadheader with the above-mentioned chassis will be installed on the sliding platform 31, and the stabilizing device 2 can be rotated to as shown in Figure 3For the non-vertical angle shown, when the cutting mechanism 4 moves back and forth during the cut-and-bore operation, the supporting force provided by the stabilizing device 2 and the cut-and-bore reaction force can form an acute angle, thereby providing a better stabilizing effect than vertical support. Specifically, when the stabilizing device 2 supports the equipment, after the rotary oil cylinder 21 rotates the stabilizing device 2 to a suitable angle, the supporting oil cylinder 22 extends to make the supporting base 23 contact the roadway floor. When the supporting device 2 is stressed, the supporting nails 24 on the supporting base 23 can penetrate into the roadway floor to increase the friction force and improve the bearing capacity of the supporting device 2 during cutting.

[0046] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A chassis structure, characterized in that, It includes a frame assembly (1), a stabilizing device (2) and a sliding mechanism (3); The frame assembly (1) includes a frame body, a left traveling mechanism (12) and a right traveling mechanism (11) respectively arranged on both sides of the frame body. The left traveling mechanism (12) and the right traveling mechanism (11) are both movably connected to the frame body; There are two groups of the stabilizing device (2) respectively arranged at intervals along the same side of the left traveling mechanism (12) and the right traveling mechanism (11); and the supporting part of a single group of the stabilizing device (2) is arranged at an angle with the displacement direction of the frame assembly (1); The sliding mechanism (3) is arranged between the left traveling mechanism (12) and the right traveling mechanism (11), and the sliding mechanism (3) is simultaneously connected to the frame body, the fixed ends of the left traveling mechanism (12) and the right traveling mechanism (11).

2. The chassis structure according to claim 1, characterized in that, A single group of the stabilizing device (2) includes a rotation driving part (21), a support driving part (22), a support base (23) and a support nail (24); One end of the rotation driving part (21) is connected to the frame body, and the other end of the rotation driving part (21) is connected to one end of the support driving part (22); The other end of the support driving part (22) is hinged to the support base (23); The support nail (24) and the support base (23) form a supporting part, and the support nail (24) is arranged at the end of the support base (23) far from the support driving part (22).

3. The chassis structure according to claim 2, wherein, The end of the support base (23) for installing the support nail (24) is set as an arc surface structure; The end of the support nail (24) far from the support base (23) is set as a cone structure.

4. The chassis structure according to claim 2 or 3, characterized in that, There is at least one group of the rotation driving part (21) and the support driving part (22) in a single group of the stabilizing device (2) which are arranged in one-to-one correspondence; When there are more than one rotation driving part (21) and support driving part (22) in a single group of the stabilizing device (2), one end of each single rotation driving part (21) is connected to the frame body, the other end of each single rotation driving part (21) is connected to one end of a single support driving part (22), and the other ends of multiple support driving parts (22) are simultaneously connected to the support base (23).

5. The chassis structure according to claim 4, characterized in that, The central axis of a single support nail (24) is arranged at an angle of 10° - 80° with the displacement direction of the frame assembly (1).

6. The chassis structure according to claim 5, characterized in that, The sliding mechanism (3) includes a sliding platform (31). The fixed end of the sliding platform (31) is connected to the frame body, and the movable end of the sliding platform (31) is simultaneously connected to the fixed ends of the left traveling mechanism (12) and the right traveling mechanism (11).

7. A cantilever type roadheader-anchoring machine, characterized in that, It includes a cutting mechanism (4) and the chassis structure as described in claim 6; The cutting mechanism (4) is installed on the sliding platform (31) in the sliding mechanism (3), and the sliding platform (31) The fixed end is simultaneously connected to the frame body, the fixed ends of the left traveling mechanism (12) and the right traveling mechanism (11), The driving end of the sliding platform (31) is connected to the cutting mechanism (4).

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