Drum assembly and roadheader

Abstract

The present invention provides a drum assembly and a roadheader. The drum assembly includes: a base disposed on an object to be supported; a support frame pivotally connected to the base at one end; a drum rotatably disposed on the support frame; and an anti-rotation structure disposed between the support frame and the drum. In the technical solution of the present invention, during the movement of the drum assembly along with the object to be supported, the drum of the drum assembly is in rolling contact with the support surface, thereby reducing the friction between the support frame and the support surface, avoiding the problems that the support frame in the related art is easily damaged due to sliding contact with the support surface and the inconvenience in use caused by the retraction of the support frame after use, and further improving the convenience of use of the drum assembly and prolonging the service life of the drum assembly.

Description

Technical Field

[0001] The present invention relates to the technical field of support devices, and more particularly, to a roller assembly and a roadheader. Background Art

[0002] Currently, during the operation of a roadheader on a large slope, multiple support points need to be set up, and usually multiple support frames are installed on the roadheader. However, the support frame is in rigid contact with the support surface. When the support frame moves with the roadheader, sliding friction occurs between the support frame and the support surface. When the sliding friction is too large, the support frame is likely to be damaged, which affects the operation of the roadheader. After the operation is completed, the support frame needs to be retracted. When the roadheader performs large-slope excavation operations at different locations, the support frame needs to be repeatedly retracted and deployed, which affects the convenience of using the support frame. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art or related technologies.

[0004] To this end, an object of the present invention is to provide a roller assembly.

[0005] Another object of the present invention is to provide a roadheader.

[0006] To achieve the above object, an embodiment of the present invention provides a roller assembly, which includes: a base disposed on an object to be supported; a support frame pivotally connected to the base at one end; a roller rotatably disposed on the support frame; and an anti-rotation structure disposed between the support frame and the roller. Wherein, the support frame can drive the roller to rotate to a preset angular position to abut against the support surface, so that the roller can support the object to be supported, and the anti-rotation structure can prevent the roller from rotating when supporting the object to be supported.

[0007] In this technical solution, since the anti-rotation structure can prevent the roller from rotating when supporting the object to be supported, the roller can support the object to be supported well, avoiding the situation where the roller rolls away from the object to be supported under the action of external force and cannot support the object to be supported, thereby ensuring the stability and reliability of the support of the roller assembly for the object to be supported. In addition, during the movement of the roller assembly along with the object to be supported, the roller of the roller assembly is in rolling contact with the support surface, which reduces the friction between the support frame and the support surface, thereby avoiding the problems that the support frame in the related art is easily damaged due to sliding contact with the support surface and the inconvenience of using the support frame after it is retracted after use, and further improving the convenience of using the roller assembly and extending the service life of the roller assembly.

[0008] In addition, the roller assembly provided in the above embodiment of the present invention may further have the following additional technical features:

[0009] In the above technical solution, the drum assembly further includes a driving member, one end of the driving member is connected to the base, and the other end of the driving member is connected to the support frame.

[0010] In this technical solution, the driving member can accurately rotate the drum to a preset angular position, so as to ensure that the drum can support the roadheader, thereby ensuring that the drum assembly can work properly.

[0011] In any of the above technical solutions, the anti-rotation structure includes a ratchet wheel and a check ratchet pawl arranged in cooperation with the ratchet wheel. The ratchet wheel is arranged on the end face of the drum, and the check ratchet pawl is arranged on the support frame.

[0012] In this technical solution, the check ratchet pawl has the function of unidirectionally restricting the rotation of the ratchet wheel. Since the ratchet wheel is arranged on the end face of the drum, the check ratchet pawl can restrict the unidirectional rotation direction of the drum, thereby preventing the drum from rolling away from the roadheader under the action of external force, and further ensuring the stability and reliability of the support of the drum assembly for the roadheader.

[0013] In any of the above technical solutions, the drum has a first end face and a second end face, and anti-rotation structures are arranged between the first end face and the second end face and the support frame respectively. The rotation directions of the ratchet wheels of one of the anti-rotation structures are opposite to those of the ratchet wheels of the other anti-rotation structure.

[0014] In this technical solution, one check ratchet pawl can restrict the drum from rotating in one direction. Since the rotation directions of the other ratchet wheels are opposite, the other check ratchet pawl can restrict the drum from rotating in the other direction. In this way, the two anti-rotation structures can restrict the drum from rotating in two directions. The staff can select one of the two anti-rotation structures according to the actual situation to restrict the drum from rotating counterclockwise or clockwise to meet the support requirements for the large-slope tunneling operation of the roadheader.

[0015] In any of the above technical solutions, the support frame includes: a body pivotally connected to the base at one end; a rotating shaft arranged at the other end of the body; a protective cover connected to the rotating shaft; wherein, the drum is sleeved on the rotating shaft, and the anti-rotation structure of the drum assembly is arranged between the body and the drum, and / or between the protective cover and the drum.

[0016] In this technical solution, the protective cover can prevent the drum from being deflected due to being hit by an external object during rotation, resulting in abnormal rotation of the drum, thereby ensuring that the drum assembly can stably support the roadheader, and further ensuring that the roadheader can work properly.

[0017] In any of the above technical solutions, the drum includes a cylinder body and cutting teeth arranged on the cylinder body.

[0018] In this technical solution, when the drum assembly supports the tunnel boring machine, the gear rolling is embedded in the supporting surface under the action of external force, which increases the friction between the drum and the supporting surface and prevents the drum and the supporting surface from slipping. In this way, the drum assembly has a stable fulcrum and can stably support the tunnel boring machine, thereby ensuring that the tunnel boring machine can work normally.

[0019] In any of the above technical solutions, the roller assembly includes a plurality of rollers.

[0020] In this technical solution, the two rollers can abut against the supporting surface at the same time, so that the support frame is evenly stressed, thus ensuring that the roller assembly can stably support the tunnel boring machine, thereby ensuring that the tunnel boring machine can work normally.

[0021] The technical solution of the second aspect of the present invention provides a tunnel boring machine, which includes: a walking part; a main body, which is arranged on the walking part; a cutting part, which is arranged on one side of the main body; at least one roller assembly, which is arranged on the main body, and at least one roller assembly adopts any one of the roller assemblies in the technical solution of the first aspect.

[0022] The tunnel boring machine provided by the technical solution of the second aspect of the present invention includes the roller assembly of any one of the technical solutions of the first aspect, and thus has all the beneficial effects of any of the above technical solutions, which will not be repeated here.

[0023] In this technical solution, when the tunnel boring machine is digging on a large slope, the roller assembly can prevent the tunnel boring machine from moving backward when working uphill and from tilting forward when working downhill, thereby ensuring that the tunnel boring machine can work normally and complete the tunneling task on site. In addition, the walking part is mainly used to drive the tunnel boring machine to move, thereby meeting the movement requirements of the tunneling operation on site, and the cutting part can cut the ore, thereby meeting the cutting requirements on site.

[0024] In any of the above technical solutions, when the tunnel boring machine includes one roller assembly, the roller assembly is located above the main body or below the main body; when the tunnel boring machine includes two roller assemblies, one of the roller assemblies is located above the main body and the other roller assembly is located below the main body.

[0025] In this technical solution, the roller assembly can support the tunnel boring machine from one or two directions, thereby ensuring that the tunnel boring machine can be stably supported and further ensuring that the tunnel boring machine can work normally.

[0026] In any of the above technical solutions, the tunnel boring machine also includes: a shovel board part, which is arranged on the main body and is located below the cutting part; and a transportation part, which is connected to the shovel board part; wherein the shovel board part is used to collect the mineral materials cut by the cutting part, and the transportation part is used to transport the mineral materials collected by the shovel board part.

[0027] In this technical solution, through the shovel plate part and the transportation part, the ore materials collected on-site can be output in a timely manner, which facilitates the subsequent processing of the collected ore materials. At the same time, it also avoids the problem that the ore materials on the shovel plate part accumulate too much and block the on-site passage, thus ensuring that the on-site tunneling work can be carried out normally.

[0028] The additional aspects and advantages of the present invention will become obvious in the following description part, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The above and / or additional aspects and advantages of the present invention will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, where:

[0030] Figure 1 FIG. shows a three-dimensional structural schematic diagram of a drum assembly according to an embodiment of the present invention;

[0031] Figure 2 FIG. shows Figure 1 an exploded view of the drum assembly in;

[0032] Figure 3 FIG. shows Figure 1 a front view of the drum assembly in;

[0033] Figure 4 FIG. shows Figure 1 a three-dimensional structural schematic diagram of the drum in;

[0034] Figure 5 FIG. shows Figure 1 a structural schematic diagram of the check pawl in;

[0035] Figure 6 FIG. shows a structural schematic diagram of a roadheader according to an embodiment of the present invention;

[0036] Figure 7 FIG. shows Figure 6 a top view of the roadheader in;

[0037] Figure 8 FIG. shows Figure 6 a left view of the roadheader in;

[0038] Figure 9 FIG. shows Figure 6 a right view of the roadheader in;

[0039] Figure 10 FIG. shows Figure 6 a three-dimensional structural schematic diagram of the anti-slip track plate in.

[0040] Wherein, Figures 1 to 10 the corresponding relationship between the reference numerals and the component names in the drawings is:

[0041] 10. Base; 20. Support frame; 22. Body; 24. Rotating shaft; 26. Protective cover; 30. Drum; 32. First end face; 34. Second end face; 36. Cylinder body; 38. Gear teeth; 40. Driving member; 50. Anti-rotation structure; 52. Ratchet wheel; 54. Check ratchet pawl; 60. Traveling part; 70. Body part; 80. Cutting part; 90. Drum assembly; 100. Shovel plate part; 110. Transportation part; 120. Anti-slip track plate; 130. Rear support; 140. Operating platform; 150. Electric control part; 160. Dust removal device; 170. Hydraulic system. Detailed implementation manners

[0042] In order to more clearly understand the above objects, features and advantages of the present invention, the present invention will be further described in detail below with reference to the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0043] In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific embodiments disclosed below.

[0044] Next, refer to Figures 1 to 10 Describe a drum assembly and a tunneling machine according to some embodiments of the present invention.

[0045] As Figures 1 to 3 shown, the present invention and the embodiments of the present invention provide a drum assembly. The drum assembly 90 includes a base 10, a support frame 20, a drum 30 and an anti-rotation structure 50. Among them, the base 10 is arranged on an object to be supported, and one end of the support frame 20 is pivotally connected to the base 10. The drum 30 is rotatably arranged on the support frame 20, and the anti-rotation structure 50 is arranged between the support frame 20 and the drum 30. The support frame 20 can drive the drum 30 to rotate to a preset angular position and abut against the support surface, so that the drum 30 can support the object to be supported, and the anti-rotation structure 50 can prevent the drum 30 from rotating when supporting the object to be supported.

[0046] In the above setting, since the anti-rotation structure 50 can prevent the drum 30 from rotating when supporting the object to be supported, the drum 30 can support the object to be supported well, avoiding the situation where the drum 30 rolls away from the object to be supported under the action of external force and cannot support the object to be supported, thereby ensuring the stability and reliability of the drum assembly 90 in supporting the object to be supported. In addition, during the process of the drum assembly 90 moving with the object to be supported, the drum 30 of the drum assembly 90 is in rolling contact with the support surface, which reduces the friction between the support frame 20 and the support surface, thus avoiding the problems that the support frame 20 in the related art is easily damaged due to sliding contact with the support surface and the inconvenience in use caused by the retraction of the support frame 20 after use, and further improving the convenience of use of the drum assembly 90 and extending the service life of the drum assembly 90.

[0047] It should be noted that the drum assembly 90 in this application is mainly applied to the field of roadheaders, and the object to be supported in this application specifically refers to the main body 70 of the roadheader. Of course, according to the actual situation, the drum assembly 90 in this application can be applied to other fields.

[0048] Specifically, as Figures 1 to 3 shown, in the embodiment of the present invention, the drum assembly 90 further includes a driving member 40. One end of the driving member 40 is connected to the base 10, and the other end of the driving member 40 is connected to the support frame 20.

[0049] In the above setting, the driving member 40 can accurately rotate the drum 30 to a preset angular position, so as to ensure that the drum 30 can support the roadheader, thereby ensuring that the drum assembly 90 can work normally.

[0050] Specifically, as Figures 1 to 5 shown, the anti-rotation structure 50 includes a ratchet wheel 52 and a check pawl 54 arranged in cooperation with the ratchet wheel 52. The ratchet wheel 52 is arranged on the end face of the drum 30, and the check pawl 54 is arranged on the support frame 20.

[0051] In the above setting, the check pawl 54 has the function of unidirectionally restricting the rotation of the ratchet wheel 52. Since the ratchet wheel 52 is arranged on the end face of the drum 30, the check pawl 54 can restrict the unidirectional rotation direction of the drum 30, thereby preventing the drum 30 from rolling away from the roadheader under the action of external force, and further ensuring the stability and reliability of the drum assembly 90 in supporting the roadheader.

[0052] It should be noted that the function of the check pawl 54 to unidirectionally restrict the rotation of the ratchet wheel 52 means that the ratchet wheel 52 can only rotate clockwise or counterclockwise. For example, when the anti-rotation structure 50 is set to only allow the ratchet wheel 52 to rotate clockwise, when an external force that causes the ratchet wheel 52 to rotate counterclockwise acts on the ratchet wheel 52, the check pawl 54 will abut against the teeth of the ratchet wheel 52 to prevent it from rotating counterclockwise. When an external force that causes the ratchet wheel 52 to rotate clockwise acts on the ratchet wheel 52, the check pawl 54 does not interfere with the rotation of the ratchet wheel 52, and the ratchet wheel 52 can rotate clockwise.

[0053] Specifically, as Figure 1 、 Figure 2 and Figure 4 shown, in the embodiments of the present invention, the drum 30 has a first end face 32 and a second end face 34, and anti-rotation structures 50 are provided between the first end face 32 and the second end face 34 and the support frame 20, and the rotation directions of the ratchet wheels 52 of one of the anti-rotation structures 50 and the ratchet wheels 52 of the other anti-rotation structure 50 are opposite.

[0054] In the above setting, one check pawl 54 can restrict the drum 30 from rotating in one direction. Since the rotation directions of the other ratchet wheels 52 are opposite, the other check pawl 54 can restrict the drum 30 from rotating in the other direction. In this way, the two anti-rotation structures 50 can restrict the drum 30 from rotating in two directions. The staff can select one of the two anti-rotation structures 50 according to the actual situation to restrict the drum 30 from rotating counterclockwise or clockwise to meet the support requirements for the large-slope tunneling operation of the roadheader.

[0055] It should be noted that when the roadheader is tunneling uphill, select the anti-rotation structure 50 with the ratchet wheel 52 having a clockwise rotation direction (the ratchet wheel 52 provided on the first end face 32), that is, the check pawl 54 of this anti-rotation structure 50 can restrict the ratchet wheel 52 from rotating clockwise. In this way, it can prevent the drum 30 from rotating clockwise when the drum assembly 90 supports the roadheader, so as to ensure that the drum assembly 90 can serve as a rear support body when the roadheader is tunneling uphill, stably support the roadheader, and further ensure that the roadheader can work normally.

[0056] It should be noted that when the roadheader is tunneling downhill, select the anti-rotation structure 50 with the ratchet wheel 52 having a counterclockwise rotation direction (the ratchet wheel 52 provided on the second end face 34), that is, the check pawl 54 of this anti-rotation structure 50 can restrict the ratchet wheel 52 from rotating counterclockwise. In this way, it can prevent the drum 30 from rotating counterclockwise when the drum assembly 90 supports the roadheader, so as to ensure that the drum assembly 90 can serve as a front support body when the roadheader is tunneling downhill, stably support the roadheader, and further ensure that the roadheader can work normally. When selecting one of the two anti-rotation structures 50, the check pawl 54 of the other anti-rotation structure 50 can be removed from the support frame 20.

[0057] Specifically, Figures 1 to 3 As shown, in the embodiment of the present invention, the support frame 20 includes a body 22, a rotating shaft 24 and a protective cover 26. One end of the body 22 is pivotally connected to the base 10, and the rotating shaft 24 is disposed on the other end of the body 22. The protective cover 26 is connected to the rotating shaft 24, and the roller 30 is sleeved on the rotating shaft 24. An anti-rotation structure 50 of the roller assembly 90 is disposed between the body 22 and the roller 30, and another anti-rotation structure 50 is disposed between the protective cover 26 and the roller 30.

[0058] In the above arrangement, the protective cover 26 can prevent the drum 30 from being deflected by the impact of external objects during rotation, causing the drum 30 to fail to rotate normally, thereby ensuring that the drum assembly 90 can stably support the tunnel boring machine and further ensure that the tunnel boring machine can work normally.

[0059] Specifically, Figures 1 to 4 As shown, in the embodiment of the present invention, the drum 30 includes a drum body 36 and a hob 38 disposed on the drum body 36 .

[0060] In the above arrangement, when the roller assembly 90 supports the tunnel boring machine, the hobbing gear 38 is embedded into the supporting surface under the action of external force, thereby increasing the friction between the roller 30 and the supporting surface and preventing the roller 30 and the supporting surface from slipping. In this way, the roller assembly 90 has a stable fulcrum and can stably support the tunnel boring machine, thereby ensuring that the tunnel boring machine can work normally.

[0061] Specifically, Figures 1 to 3 As shown, in the embodiment of the present invention, the roller assembly 90 includes two rollers 30 .

[0062] In the above arrangement, the two rollers 30 can abut against the support surface at the same time, so that the support frame 20 is evenly stressed, thus ensuring that the roller assembly 90 can stably support the tunnel boring machine, thereby ensuring that the tunnel boring machine can work normally.

[0063] like Figures 6 to 9 As shown, the present invention provides a roadheader, which includes a walking part 60, a main body 70, a cutting part 80 and two roller assemblies 90. The main body 70 is arranged on the walking part 60, and the cutting part 80 is arranged on one side of the main body 70. The two roller assemblies 90 are arranged on the main body 70, and the two roller assemblies 90 adopt any one of the roller assemblies 90 in the first aspect of the embodiment.

[0064] In the above settings, during the operation of the roadheader on a large slope, the drum assembly 90 can prevent the roadheader from moving backward during uphill operation and tipping forward during downhill operation, thereby ensuring that the roadheader can work normally and then completing the tunneling task on site. In addition, the traveling part 60 is mainly used to drive the roadheader to move, so as to meet the moving requirements of the tunneling operation on site, and the cutting part 80 can cut ore, so as to meet the cutting requirements on site.

[0065] The roadheader provided by the technical solution of the second aspect of the present invention includes the drum assembly in any one of the embodiments of the first aspect, and thus has all the beneficial effects of any one of the above embodiments, which will not be repeated here.

[0066] It should be noted that the transmission mechanism of the traveling part 60 in the present application adopts a combination of belt drive and a reducer with large torque. As Figure 10 shown, the driving crawler belt in the present application adopts an anti-slip crawler plate 120 with high lugs, which ensures that the roadheader has strong driving force, enhances the ground gripping ability of the roadheader during driving, and thus reduces the number of slipping phenomena during the driving process of the roadheader.

[0067] Specifically, as Figures 6 to 9 shown, in the embodiment of the present invention, one of the two drum assemblies 90 is located above the body part 70, and the other drum assembly 90 is located below the body part 70.

[0068] In the above settings, the drum assembly 90 located above the body part 70 abuts against the roof of the on-site passage, and the drum assembly 90 located below the body part 70 abuts against the bottom surface of the on-site passage. In this way, when the roadheader is operating, the two drum assemblies 90 can support the roadheader from two directions, thereby ensuring that the roadheader can be stably supported and further ensuring that the roadheader can work normally. Of course, according to the actual situation, the two drum assemblies 90 can be arranged on both sides or other positions of the roadheader.

[0069] Specifically, as Figures 6 to 9 shown, in the embodiment of the present invention, the roadheader further includes a scraper plate part 100 and a conveying part 110. Among them, the scraper plate part 100 is arranged on the body part 70, and the scraper plate part 100 is located below the cutting part 80. The conveying part 110 is connected to the scraper plate part 100. The scraper plate part 100 is used to collect the ore cut by the cutting part 80, and the conveying part 110 is used to convey the ore collected by the scraper plate part 100.

[0070] In the above settings, through the scraper plate part 100 and the transportation part 110, the mined materials collected on-site can be output in a timely manner, which facilitates the subsequent processing of the mined materials. At the same time, it also avoids the problem of excessive accumulation of mined materials in the scraper plate part 100 blocking the on-site passage, thus ensuring the normal development of the on-site tunneling work.

[0071] Specifically, as Figures 6 to 9 shown, the roadheader also includes a rear support 130, an operation console 140, an electric control part 150, a dust removal device 160, and a hydraulic system 170.

[0072] In the above settings, the rear support 130 can be used when the roadheader is operating in a flat roadway or with a small dip angle to support the roadheader. When the roadheader is operating on a large slope, the rear support 130 can be used together with the drum assembly 90 as an auxiliary support, so that the roadheader can be better supported.

[0073] It should be noted that the hydraulic system 170 mainly provides hydraulic power for various hydraulic actuators of the roadheader, the electric control part 150 mainly provides electricity for various electric control actuators of the roadheader, the operation console 140 facilitates the staff to control the operation of the roadheader, and the dust removal device 160 is mainly used to remove the dust on the roadheader.

[0074] It should be noted that in this application, drum assemblies 90 are provided at the top and bottom of the roadheader. When the roadheader is tunneling on a large slope, the roadheader moves in a preset direction, and at the same time, the rear support 130 is lifted. The lifting cylinder (driving part 40) of the drum assembly 90 extends, and the drum 30 rolls along the roof and the bottom surface. The rolling teeth 38 are pressed into the contact surface under the action of the lifting cylinder. When the roadheader slips, the anti-rotation structure 50 comes into play to prevent the drum 30 from rotating, playing a role in stabilizing the roadheader and preventing it from sliding. Of course, according to the actual situation, when the roadheader is operating in a flat roadway or with a small dip angle, the drum 30 can be retracted.

[0075] The roadheader in this application has the following advantages:

[0076] 1. The anti-slip track shoes 120 with high lugs are adopted, enhancing the anti-slip effect.

[0077] 2. When the roadheader is tunneling on a large slope, the rear support 130 can be retracted and the drum assembly 90 can be lowered for tunneling. The drum assembly 90 can not only replace the rear support 130 to play a role in stabilizing the equipment, but also play an anti-slip role through the rolling teeth 38 on the drum 30 and the anti-rotation structure 50.

[0078] 3. By selecting one of the two anti-rotation structures 50, the roadheader can play a role in stabilizing and preventing the roadheader from sliding when operating on slopes.

[0079] From the above description, it can be seen that since the anti-rotation structure 50 can prevent the roller 30 from rotating when supporting the object to be supported, the roller 30 can support the object to be supported well, avoiding the situation where the roller 30 rolls away from the object to be supported under the action of external force and cannot support the object to be supported, thereby ensuring the stability and reliability of the roller assembly 90 in supporting the object to be supported. In addition, during the movement of the roller assembly 90 along with the object to be supported, the roller 30 of the roller assembly 90 is in rolling contact with the support surface, which reduces the friction between the roller assembly 90 and the support surface, thereby avoiding the problems that the support frame 20 in the related art is easily damaged due to sliding contact with the support surface and the inconvenience in use caused by the retraction of the support frame 20 after use, and further improving the convenience of use of the roller assembly 90 and extending the service life of the roller assembly 90.

[0080] In the present invention, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance; the term "plurality" means two or more unless otherwise clearly defined. The terms such as "mounted", "connected", "connected to", "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a direct connection or an indirect connection through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0081] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present invention.

[0082] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "specific embodiments", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or instance. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0083] The above is only the preferred embodiment of the present invention and is not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A drum assembly (90), characterized in that, The drum assembly (90) includes: A base (10) disposed on an object to be supported; A support frame (20) having one end pivotally connected to the base (10); A drum (30) rotatably disposed on the support frame (20); An anti-rotation structure (50) disposed between the support frame (20) and the drum (30); Wherein, the support frame (20) can drive the drum (30) to rotate to a preset angular position and abut against a support surface, so that the drum (30) can support the object to be supported, and the anti-rotation structure (50) can prevent the drum (30) from rotating when supporting the object to be supported; The anti-rotation structure (50) includes a ratchet wheel (52) and a check pawl (54) cooperatively disposed with the ratchet wheel (52). The ratchet wheel (52) is disposed on an end face of the drum (30), and the check pawl (54) is disposed on the support frame (20); The drum (30) has a first end face (32) and a second end face (34). The anti-rotation structure (50) is disposed between each of the first end face (32) and the second end face (34) and the support frame (20). The rotation directions of the ratchet wheels (52) of one of the anti-rotation structures (50) and the other anti-rotation structure (50) are opposite; When the roadheader is tunneling uphill, the check pawl (54) of one of the anti-rotation structures (50) restricts the ratchet wheel (52) from rotating clockwise; When the roadheader is tunneling downhill, the check pawl (54) of the other anti-rotation structure (50) restricts the ratchet wheel (52) from rotating counterclockwise.

2. The drum assembly (90) according to claim 1, characterized in that, The drum assembly (90) further includes a driving member (40). One end of the driving member (40) is connected to the base (10), and the other end of the driving member (40) is connected to the support frame (20).

3. The drum assembly (90) according to claim 1 or 2, characterized in that, The support frame (20) includes: A main body (22) having one end pivotally connected to the base (10); A rotating shaft (24) disposed at the other end of the main body (22); A protective cover (26) connected to the rotating shaft (24); Wherein, the drum (30) is sleeved on the rotating shaft (24). The anti-rotation structure (50) of the drum assembly (90) is disposed between the main body (22) and the drum (30), and / or between the protective cover (26) and the drum (30).

4. The drum assembly (90) according to claim 1 or 2, characterized in that, The drum (30) includes a cylindrical body (36) and cutting teeth (38) disposed on the cylindrical body (36).

5. The drum assembly (90) according to claim 1 or 2, characterized in that, The drum assembly (90) includes a plurality of drums (30).

6. A roadheader, characterized in that, The roadheader includes: A traveling part (60); A main body part (70) disposed on the traveling part (60); A cutting part (80) disposed on one side of the main body part (70); At least one drum assembly (90) disposed on the main body part (70), and at least one of the drum assemblies (90) adopts the drum assembly (90) described in any one of claims 1 to 5.

7. The roadheader according to claim 6, characterized in that, When the roadheader includes one drum assembly (90), the drum assembly (90) is located above the main body part (70) or below the main body part (70); when the roadheader includes two drum assemblies (90), one of the drum assemblies (90) is located above the main body part (70), and the other drum assembly (90) is located below the main body part (70).

8. The roadheader according to claim 7, characterized in that, The roadheader further includes: A scraper plate part (100) is arranged on the main body part (70), and the scraper plate part (100) is located below the cutting part (80); A conveying part (110) is connected to the scraper plate part (100); Wherein, the scraper plate part (100) is used for collecting the ore materials cut by the cutting part (80), and the conveying part (110) is used for conveying the ore materials collected by the scraper plate part (100).

Images