Cutting roller assembly and driving and anchoring machine

Abstract

The utility model discloses a cutting roller component which comprises a main shaft and a driving component, the main shaft is a hollow shaft, a left roller, a middle roller and a right roller are sequentially sleeved on the outer side of the main shaft, and the left roller and the right roller are symmetrically arranged on two sides of the middle roller respectively; lengthened rollers are fixedly connected to the sides, far away from the middle roller, of the left roller and the right roller in the axial direction; the driving assemblies are installed in the cavity of the main shaft, and the two sets of driving assemblies drive the corresponding lengthened rollers to be close to or away from the middle roller so as to adjust the width of the cutting roller.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mining, in particular to a cutting drum assembly and a roadheader-anchoring machine. Background Art

[0002] The cutting drum is one of the core working mechanisms of a roadheader-anchoring machine. Picks or other coal-breaking tools are installed on its periphery, mainly used for crushing and cutting coal and rock. The picks cut coal from the working face, and through the rotation and movement of the drum, the coal is loaded into the conveying system and transported out. At present, the width of the cutting drum used in a roadheader-anchoring machine is fixed. On the one hand, the cutting width cannot be adjusted according to the width of the roadway to achieve a one-pass roadway formation, affecting work efficiency; on the other hand, the cutting drum with a fixed width is prone to damage the coal and rock that does not need to be cut during the working process. Content of the Utility Model

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, the utility model provides a cutting drum assembly with a telescopic function, which can adjust the cutting width according to the width of the roadway, is conducive to one-pass roadway formation, and improves work efficiency.

[0005] The utility model also provides a roadheader-anchoring machine with the above-mentioned cutting drum assembly.

[0006] A cutting drum assembly according to an embodiment of the first aspect of the utility model includes:

[0007] A main shaft, the main shaft is a hollow shaft, a left drum, an intermediate drum and a right drum are sequentially sleeved on the outer side of the main shaft, and the left drum and the right drum are symmetrically arranged on both sides of the intermediate drum; on one side of the left drum and the right drum along the axial direction away from the intermediate drum, an extended drum is fixedly connected.

[0008] A driving assembly is installed in the cavity of the main shaft, and the two driving assemblies respectively drive the corresponding extended drums to approach or move away from the intermediate drum to adjust the width of the cutting drum.

[0009] According to some embodiments of the utility model, it further includes a locking assembly for positioning, and the locking assembly is installed in the cavity of the extended drum.

[0010] According to some embodiments of the present utility model, the locking assembly includes a locking arm and a clamping seat; the clamping seat is installed on one side of the lengthened roller away from the intermediate roller, a support seat is installed on one side of the clamping seat close to the intermediate roller, and the middle part of the locking arm is swingably connected to the support seat through a pin shaft; a spring seat is installed on one side of the clamping seat away from the intermediate roller, there is a gap between the support seat and the spring seat, a spring is built in the spring seat, a spring sleeve is sleeved outside the spring, one end of the spring sleeve is closed, the head end of the spring is fixedly connected to the spring seat, the spring sleeve can move relative to the spring seat, and the closed end of the spring sleeve contacts the tail end part of the locking arm.

[0011] According to some embodiments of the present utility model, a stop ring is installed on one side of the left roller and the right roller away from the intermediate roller, and the head end part of the locking arm is clamped and positioned with the side wall of the stop ring.

[0012] According to some embodiments of the present utility model, the head end part of the locking arm is arranged in a stepped shape.

[0013] According to some embodiments of the present utility model, the driving assembly includes an oil cylinder and a connecting rod; the connecting rod is installed on one side of the support seat facing the intermediate roller, the body of the oil cylinder is fixed in the cavity of the main shaft, and the end of the push rod of the oil cylinder away from the body is inserted into the connecting rod and fixedly connected to the connecting rod.

[0014] According to some embodiments of the present utility model, a cam is installed on one side of the support seat facing the intermediate roller, the middle part of the cam is fixedly connected to the connecting rod; a notch groove for the locking arm to pass through is formed on one side of the cam facing the locking arm, and the groove wall of the notch groove contacts the side surface of the locking arm.

[0015] According to some embodiments of the present utility model, the left roller and the right roller are respectively fixedly connected to their corresponding lengthened rollers through flat keys.

[0016] According to some embodiments of the present utility model, a roller tail ring is further connected to one side of the lengthened roller away from the intermediate roller.

[0017] The cutting drum assembly according to the embodiment of the present utility model has at least the following beneficial effects: The left drum and the right drum are symmetrically arranged on both sides of the middle drum, and on the side where the left drum and the right drum are axially away from the middle drum, an extended drum is fixedly connected. The setting of the extended drum effectively increases the overall width of the cutting drum. Two sets of driving components symmetrically arranged in the cavity of the main shaft respectively correspond to the extended drum connected to the left drum and the extended drum connected to the right drum. The driving components drive the corresponding extended drums to drive the left drum and the right drum to approach or move away from the middle drum, so that the width of the cutting drum changes. The cutting drum assembly adopting the above technical solution can adjust the cutting width of the cutting drum according to the width of the roadway, which is beneficial to improving work efficiency.

[0018] The roadheader according to the second aspect embodiment of the present utility model includes the cutting drum assembly as described above.

[0019] The roadheader according to the embodiment of the present utility model has at least the following beneficial effects: The cutting drum assembly described in any one of the above technical solutions is adopted. Therefore, it has all the beneficial effects of the cutting drum assembly described in any one of the above embodiments, which will not be listed one by one here.

[0020] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present utility model will become obvious and easy to understand from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a partial cross-sectional view of the cutting drum assembly according to the embodiment of the present utility model;

[0023] Figure 2 is a schematic structural diagram of a partial locking assembly according to the embodiment of the present utility model.

[0024] Reference numerals:

[0025] main shaft 100, middle drum 200, right drum 300, stop ring 310, extended drum 400, flat key 500, locking assembly 600, locking arm 601, clamping seat 602, support seat 603, spring seat 604, spring 605, spring sleeve 606, cam 607, driving component 700, oil cylinder 701, connecting rod 702, drum tail ring 800 DETAILED DESCRIPTION OF THE EMBODIMENTS

[0026] Embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary and are only used to explain the present utility model, and should not be construed as a limitation of the present utility model.

[0027] In the description of the present utility model, it should be understood that with respect to the orientation description, the orientation or positional relationships indicated by the terms "center, longitudinal, transverse, length, width, thickness, upper, lower, front, rear, left, right, vertical, horizontal, top, bottom, inner, outer, circumferential, radial, axial", etc. are based on the orientation or positional relationships shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present utility model.

[0028] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is two or more, and understandings such as "greater than, less than, exceeding" do not include the present number, and understandings such as "above, below, within" include the present number. If there is a description of "first, second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "connection", "setting", "arrangement", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Next, refer to Figures 1 to 2 to describe a cutting drum assembly according to an embodiment of the first aspect of the present utility model.

[0031] As Figure 1As shown, the cutting drum assembly includes a main shaft 100, a left drum (not shown in the figure), an intermediate drum 200 and a right drum 300. The left drum, the intermediate drum 200 and the right drum 300 are sequentially mounted on the outside of the main shaft 100 along the axial direction of the main shaft 100, and the left drum and the right drum 300 are symmetrically arranged on both sides of the intermediate drum 200. The left drum and the right drum 300 are both fixedly connected with an extension drum 400 on the side away from the intermediate drum 200 along the axial direction. The main shaft 100 is a hollow shaft, and two sets of driving assemblies 700 are arranged in the cavity of the main shaft 100, which respectively drive the corresponding extension drum 400 to approach or move away from the intermediate drum 200 to adjust the width of the cutting drum.

[0032] like Figure 1 As shown, in some specific embodiments of the present invention, the left roller and the right roller 300 are respectively fixedly connected to their corresponding lengthened rollers 400 via flat keys 500, so that the left roller and the right roller 300 move following the lengthened roller 400.

[0033] like Figure 1 As shown, in some specific embodiments of the present invention, the cutting drum assembly also includes a locking assembly 600, which is installed in the cavity of the extended drum 400. When the extended drum 400 drives the left drum or the right drum 300 to move to a predetermined position respectively under the drive of the driving assembly 700, the left drum or the right drum 300 is clamped by the locking assembly 600 to position it.

[0034] Specifically, the locking assembly 600 includes a locking arm 601 and a holder 602. The holder 602 is installed on the side of the lengthened roller 400 away from the intermediate roller 200 by bolts. A support seat 603 is installed on the side of the holder 602 close to the intermediate roller 200. The middle part of the locking arm 601 is swingably connected to the support seat 603 through a pin. A spring seat 604 is installed on the side of the holder 602 away from the intermediate roller 200. There is a gap between the support seat 603 and the spring seat 604. The spring seat 604 has a spring 605 built in it. A spring sleeve 606 is sleeved on the outer side of the spring 605. One end of the spring sleeve 606 is closed. The spring 605 is placed in the cavity of the spring sleeve 606. The head end of the spring 605 is fixedly connected to the spring seat 604. The spring sleeve 606 can move relative to the spring seat 604 under the expansion and contraction of the spring 605. It should be noted that the closed end of the spring sleeve 606 is always in contact with the tail end of the locking arm 601. When the extended roller 400 drives the left roller or the right roller 300 to move to the predetermined position respectively under the drive assembly 700, the rear end of the locking arm 601 gradually drives the spring sleeve 606 to move the compression spring 605 until the front end of the locking arm 601 engages with the left roller or the right roller 300 to prevent the left roller or the right roller 300 from retracting. Figure 2As shown, the locking assembly 600 includes three locking arms 601, which are circumferentially and evenly arranged.

[0035] As Figure 1 shown, in some specific embodiments of the present utility model, a stop ring 310 is installed on one side of the left drum and the right drum 300 away from the middle drum 200 by screws, and the first end of the locking arm 601 is clamped with the side wall of the stop ring 310 for positioning.

[0036] Specifically, the first end of the locking arm 601 is arranged in a stepped shape to facilitate clamping with the stop ring 310.

[0037] As Figure 1 shown, in some specific embodiments of the present utility model, the driving assembly 700 includes an oil cylinder 701 and a connecting rod 702. The connecting rod 702 is installed on one side of the support seat 603 facing the middle drum 200. The body of the oil cylinder 701 is fixed in the cavity of the main shaft 100 by bolts, and the end of the push rod of the oil cylinder 701 away from the body is inserted into the connecting rod 702 and fixedly connected to the connecting rod 702 through a split pin.

[0038] As Figure 1 shown, in some specific embodiments of the present utility model, a drum tail ring 800 is further connected to one side of the extended drum 400 away from the middle drum 200. The drum tail ring 800 is partially sleeved on the outside of the extended drum 400. While further increasing the width of the cutting drum, it can also protect the parts in the cavities of the main shaft 100, the left drum, the right drum 300, and the extended drum 400, such as the driving assembly 700, the locking assembly 600, and the cam 607.

[0039] As Figure 1 and Figure 2 shown, in some specific embodiments of the present utility model, a cam 607 is installed on one side of the support seat 603 facing the middle drum 200. The middle part of the cam 607 is fixedly connected to the connecting rod 702, so that the cam 607 can rotate following the connecting rod 702.

[0040] As Figure 2 shown, in some specific embodiments of the present application, three notch grooves are formed on one side of the cam 607 facing the locking arm 601 to respectively avoid the three locking arms 601, so that the tail end of the locking arm 601 can pass through the cam 607. The groove wall of the notch groove contacts the side surface of the locking arm 601. When it is necessary for the extended drum 400 to drive the left drum or the right drum 300 to return from a predetermined position to the original position, the cam 607 rotates, and the side surface of the locking arm 601 is squeezed by the groove wall of the notch groove, so that the locking arms 601 gather, the first end of the locking arm 601 is separated from the left drum or the right drum 300, and the driving assembly drives the left drum or the right drum 300 to reset.

[0041] In the cutting drum assembly of the above technical solution, the driving assembly 600 drives the corresponding lengthened drum 400, and then drives the left drum and the right drum 300 to approach or move away from the middle drum 200, so that the width of the cutting drum changes. The cutting drum assembly can adjust the cutting width of the cutting drum according to the width of the roadway, which is beneficial to improving the working efficiency.

[0042] The roadheader according to the second aspect embodiment of the present invention includes the cutting drum assembly described above. By adopting the cutting drum assembly in the above technical solution, therefore, it has all the beneficial effects of the cutting drum assembly described in the above embodiments, which will not be enumerated one by one here.

[0043] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples" 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 example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] The embodiments of the present invention have been described in detail above in conjunction with the drawings. However, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A cutting drum assembly, characterized in that, Comprising: A main shaft (100), the main shaft (100) being a hollow shaft, with a left drum, an intermediate drum (200), and a right drum (300) successively sleeved outside the main shaft (100), and the left drum and the right drum (300) being symmetrically disposed on both sides of the intermediate drum (200); on one side of the left drum and the right drum (300) along the axial direction away from the intermediate drum (200), an extended drum (400) is fixedly connected to each; A drive assembly (700), installed in the cavity of the main shaft (100), and the two drive assemblies (700) respectively drive the corresponding extended drums (400) to approach or move away from the intermediate drum (200) to adjust the width of the cutting drum.

2. The cutting drum assembly according to claim 1, characterized in that, It further includes a locking assembly (600) for positioning, and the locking assembly (600) is installed in the cavity of the extended drum (400).

3. The cutting drum assembly according to claim 2, wherein, The locking assembly (600) includes a locking arm (601) and a clamping seat (602); the clamping seat (602) is installed on one side of the extended drum (400) away from the intermediate drum (200), a support seat (603) is installed on the side of the clamping seat (602) close to the intermediate drum (200), and the middle part of the locking arm (601) is swingably connected to the support seat (603) through a pin shaft; a spring seat (604) is installed on the side of the clamping seat (602) away from the intermediate drum (200), there is a gap between the support seat (603) and the spring seat (604), a spring (605) is built in the spring seat (604), a spring sleeve (606) is sleeved outside the spring (605), one end of the spring sleeve (606) is closed, the first end of the spring (605) is fixedly connected to the spring seat (604), the spring sleeve (606) can move relative to the spring seat (604), and the closed end of the spring sleeve (606) contacts the tail end part of the locking arm (601).

4. The cutting drum assembly according to claim 3, characterized in that A stop ring (310) is installed on one side of the left drum and the right drum (300) away from the intermediate drum (200), and the first end part of the locking arm (601) is clamped with the side wall of the stop ring (310) for positioning.

5. The cutting drum assembly according to claim 4, characterized in that, The first end part of the locking arm (601) is arranged in a stepped shape.

6. The cutting drum assembly according to claim 3, wherein, The drive assembly (700) includes an oil cylinder (701) and a connecting rod (702); the connecting rod (702) is installed on the side of the support seat (603) facing the intermediate drum (200), the body of the oil cylinder (701) is fixed in the cavity of the main shaft (100), and the end of the push rod of the oil cylinder (701) away from the body is inserted into the connecting rod (702) and fixedly connected to the connecting rod (702).

7. The cutting drum assembly according to claim 6, characterized in that, A cam (607) is mounted on one side of the support base (603) facing the intermediate drum (200), and the middle part of the cam (607) is fixedly connected to the connecting rod (702); a notch groove for the locking arm (601) to pass through is formed on one side of the cam (607) facing the locking arm (601), and the groove wall of the notch groove contacts the side surface of the locking arm (601).

8. The cutting drum assembly according to claim 1, wherein, The left drum and the right drum (300) are respectively fixedly connected to their corresponding lengthened drums (400) through flat keys (500).

9. The cutting drum assembly according to claim 1, characterized in that, A drum tail ring (800) is further connected to one side of the lengthened drum (400) away from the intermediate drum (200).

10. A roadheader-anchoring machine, characterized in that, It includes a cutting drum assembly according to any one of claims 1 to 9.

Images