Main shaft assembly of plate milling machine and plate milling machine

Abstract

The utility model discloses a main shaft component of a plate milling machine and the plate milling machine, which comprises a protective shell, a first opening part and a second opening part which are formed at two ends of the protective shell; the main shaft component is arranged in the protective shell; the first rotating bearing is assembled on the main shaft part and is arranged in the protective shell; the first sealing piece is fixedly connected with the protective shell and blocks the first opening part, and a first penetrating part is arranged above the first sealing piece; the first rotating part is connected with the main shaft part, and a first rotating sealing structure is formed between the first rotating part and the first sealing part; the second rotating bearing is assembled on the main shaft part and is arranged in the protective shell; the second sealing piece is fixedly connected with the protective shell and blocks the second opening part, and a second penetrating part is formed above the second sealing piece; and the second rotating part is connected with the main shaft part, and a second rotating sealing structure is formed between the second rotating part and the second sealing part. According to the main shaft component of the plate milling machine, the problem that dust enters the bearing and fails is effectively solved, and normal and stable operation of the main shaft component is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to timber processing technical field, specifically, relate to a kind of milling board machine main shaft assembly and the improvement of milling board machine structure. BACKGROUND

[0002] To realize milling to board, the existing milling board machine is usually provided with a driving device and a pulley transmission device cooperating with the driving device, the pulley transmission device is connected with the main shaft connected with the milling cutter, to drive the main shaft and the milling cutter to rotate for milling operation.

[0003] To realize the assembly of the main shaft of the milling cutter, a bearing is generally arranged to cooperate with the main shaft, the bearing is installed on the bearing seat, and the bearing seat is installed on the rack of the milling board machine to realize the fixation of the bearing, and the main shaft can rotate relative to the bearing during operation.

[0004] Since the milling board machine performs milling operation on the surface of the board, a large amount of dust and dirt is generated, and the bearing and the main shaft are of a completely open structure, so that a large amount of dust enters the bearing after long-term operation of the milling board machine, which affects the service life of the bearing and cannot guarantee the normal and stable operation of the main shaft.

[0005] The above information disclosed in the background is only used to increase the understanding of the background of the present application, and therefore, it can include prior art known by those skilled in the art. UTILITY MODEL CONTENT

[0006] The utility model is directed to the above technical problems of the existing milling board main shaft, and proposes a milling board machine main shaft assembly, which improves the assembly structure of the main shaft, effectively avoids the problem of bearing entering dust and failure, and guarantees the normal and stable operation of the main shaft component.

[0007] To achieve the above utility model / design purposes, the utility model adopts the following technical solutions:

[0008] A milling board machine main shaft assembly, comprising:

[0009] A protective shell, first and second opening portions are formed at both ends of the protective shell;

[0010] A main shaft component is arranged in the protective shell and extends from the first and second opening portions at both ends;

[0011] A milling cutter component is connected to the main shaft component extending from the second opening portion;

[0012] A first rotating bearing is assembled on the main shaft component, arranged in the protective shell and close to the first opening portion;

[0013] The first seal is fixedly connected with the protective shell and seals the first opening part, and a first passing part for passing through the main shaft part is arranged above the first seal;

[0014] The first rotating part is connected with the main shaft part and forms a first rotating sealing structure with the first seal around the first passing part;

[0015] The second rotating bearing is assembled on the main shaft part and arranged in the protective shell and close to the second opening part;

[0016] The second seal is fixedly connected with the protective shell and seals the second opening part, and a second passing part for passing through the main shaft part is arranged above the second seal;

[0017] The second rotating part is connected with the main shaft part and forms a second rotating sealing structure with the second seal around the second passing part.

[0018] Compared with the prior art, the milling machine main shaft assembly has the following advantages and positive effects:

[0019] The milling machine main shaft assembly improves the assembly structure of the main shaft part, first, a protective shell is arranged, the first rotating bearing and the second rotating bearing for rotating the main shaft part are arranged in the protective shell, the protective shell can shield most of the dust, and the dust is prevented from entering the first rotating bearing and the second rotating bearing, thereby achieving first protection;

[0020] Secondly, the first seal and the second seal are arranged at the first opening part and the second opening part of the protective shell, respectively, to seal the first opening part and the second opening part, so that dust is prevented from entering the protective shell, and the first rotating part and the second rotating part matched with the first seal and the second seal are arranged on the main shaft part, respectively, to form a first rotating sealing structure and a second rotating sealing structure around the first passing part and the second passing part, respectively, thereby achieving second protection and sealing of the bearing assembly arranged in the dustproof shell, effectively preventing dust generated during the milling plate of the milling machine from entering the first rotating bearing and the second rotating bearing, ensuring stable operation of the first rotating bearing and the second rotating bearing, and further ensuring normal and stable operation of the main shaft part.

[0021] Other features and advantages of the present application will become more apparent after reading the specific implementation manner of the present application in combination with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical scheme in the embodiments of the present application, the drawings needed to be used in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0023] Figure 1 It is a front view of an embodiment of the milling machine spindle assembly provided by the present application.

[0024] Figure 2 It is an A-A sectional view of the milling machine spindle assembly provided by the present application. Figure 1

[0025] Figure 3 It is an enlarged view of B of the milling machine spindle assembly provided by the present application. Figure 2

[0026] Figure 4 It is a front view of a first sealing member of an embodiment of the milling machine spindle assembly provided by the present application.

[0027] Figure 5 It is a C-C sectional view of the milling machine spindle assembly provided by the present application. Figure 4

[0028] It is a structure schematic view of a first rotating member of an embodiment of the milling machine spindle assembly provided by the present application. Figure 6

[0029] It is a front view of a first rotating member of an embodiment of the milling machine spindle assembly provided by the present application. Figure 7

[0030] It is a D-D sectional view of the milling machine spindle assembly provided by the present application. Figure 8 Figure 7 It is a structure schematic view of the milling machine spindle assembly and the driving device provided by the present application.

[0031] Figure 9 It is a structure arrangement view of the driving device and the milling machine spindle assembly provided by the present application.

[0032] Figure 10

[0033] ​​​​In the figure, 100, protective shell; 110, first opening part; 120, second opening part; 130, first end face limiting table; 140, second oil injection part; 150, second oil injection piece; 200, main shaft part; 210, main body section; 220, transition section; 230, connecting section; 231, connecting end face; 240, passive connection part; 241, step part; 250, pressing piece; 260, gasket assembly; 310, first rotary bearing; 320, second end face limiting piece; 410, first sealing piece; 411, first through part; 412, first annular recess; 413, first annular protrusion; 414, first oil injection part; 415, first oil injection piece; 420, first rotating piece; 421, second annular protrusion; 422, second annular recess; 510, second rotary bearing; 520, third limiting piece; 610, second sealing piece; 611, second through part; 620, second rotating piece; 700, milling cutter part; 710, plug-in part; 711, plug-in end face; 800, driving device; 810, active connection part; 820, connecting belt. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0035] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation on the present application.

[0036] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. In the description of the embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0037] The terms "first", "second", etc. are used only for descriptive purposes and should not be construed as implying or suggesting relative importance or an indicated number of the technical features. Thus, the features defined with "first", "second", etc. can explicitly or implicitly include one or more of the features.

[0038] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two.

[0039] In a kind of milling machine main shaft assembly of the application, milling machine main shaft assembly is used to cooperate with milling cutter component 700, drives milling cutter component 700 to rotate.

[0040] When main shaft component 200 is in the stable running state without jitter, milling cutter component 700 can only be stably and effectively operated.

[0041] Main shaft assembly includes protective shell 100, part of main shaft component 200 arranged in protective shell 100 and bearing assembly rotationally connected with main shaft component 200, and the bearing assembly includes first rotation bearing 310 and second rotation bearing 510.

[0042] By cooperating with main shaft component 200, the rotation of main shaft component 200 relative to protective shell 100 can be realized.

[0043] In some embodiments of the application, first opening portion 110 and second opening portion 120 are formed at both ends of protective shell 100.

[0044] Space is formed inside protective shell 100, which can be used to accommodate part of main shaft component 200 and bearing assembly.

[0045] By embedding bearing assembly inside protective shell 100, dustproof protection of bearing assembly can be realized, so that most of the dust cannot enter the inside of bearing assembly.

[0046] First opening portion 110 and second opening portion 120 are first opening and second opening formed on protective shell 100 respectively, and the two ends of protective shell 100 are penetrated through the first opening and the second opening.

[0047] Main shaft component 200 is arranged inside protective shell 100 and extends from first opening portion 110 and second opening portion 120 at both ends.

[0048] When arranged, first opening portion 110 is arranged above protective shell 100, second opening portion 120 is arranged below protective shell 100, and main shaft component 200 is partially arranged in protective shell 100, and the upper part and the lower part extend from protective shell 100 respectively.

[0049] The milling cutter part 700 is connected to the protruding section of the spindle part 200 from the second opening part 120.

[0050] The first rotating bearing 310 is arranged in the protective shell 100 and close to the first opening part 110.

[0051] The first rotating bearing 310 is rotatably connected to the spindle part 200 and is arranged close to the first opening part 110 and connected to the upper section of the spindle part 200.

[0052] The first sealing part 410 is fixedly connected to the protective shell 100 and seals the first opening part 110.

[0053] The first rotating part 420 is connected to the spindle part 200 and forms a first rotating sealing structure with the first sealing part 410.

[0054] The first rotating part 420 is sleeved on the spindle part 200 and is in interference fit with the spindle part 200. An installation hole is arranged on the side of the first rotating part 420, and a locking screw is locked in the spindle part 200 through the installation hole to firmly lock and fix the first rotating part 420 and the spindle part 200.

[0055] The first sealing part 410 seals the first opening part 110, which can seal the first opening part 110 above the protective shell 100. Since the first sealing part 410 needs to pass through the spindle part 200, a first passing part 411 for passing through the spindle part 200 is arranged therebetween. The first passing part 411 is a first passing hole, and the periphery of the first passing hole needs to be sealed.

[0056] The first rotating part 420 and the first sealing part 410 form a first rotating sealing structure at the periphery of the first passing part 411, which is used to seal the first passing part 411.

[0057] In specific arrangement, the first rotating part 420 is assembled and fixed on the spindle part 200, and is arranged opposite to the first sealing part 410. There is a small gap between the opposite end faces of the first rotating part 420 and the first sealing part 410, which avoids hard rotation wear caused by direct contact between the first rotating part 420 and the first sealing part 410.

[0058] On the one hand, the first rotating part 420 is connected to the spindle part 200, and the first sealing part 410 is connected to the protective shell 100. The first rotating part 420 and the first sealing part 410 have a first rotating sealing structure, which can ensure that the spindle part 200 can normally rotate relative to the protective shell 100 with the first sealing part 410 assembled.

[0059] On the other hand, the first rotating sealing structure can also seal the periphery of the first passing part 411 to prevent dust from entering the first rotating bearing 310 through the first passing part 411, affecting the normal operation and service life of the first rotating bearing 310, and ensuring the normal and stable rotating operation of the entire spindle component 200.

[0060] The second rotating bearing 510 is arranged in the protective shell 100 and close to the second opening part 120.

[0061] The second rotating bearing 510 is arranged on the lower part of the spindle component 200.

[0062] The second sealing member 610 is fixedly connected with the protective shell 100 and blocks the second opening part 120, and the second passing part 611 is arranged on the second sealing member 610.

[0063] The second passing part 611 is a second passing hole for passing through the spindle component 200.

[0064] The second sealing member 610 blocks the second opening part 120, and since the second sealing member 610 also needs to pass through the spindle component 200, the second passing part 611 for passing through the spindle component 200 is arranged between the second sealing member 610 and the spindle component 200, and thus the periphery of the second passing part 611 also needs to be sealed.

[0065] The second rotating member 620 is connected with the spindle component 200 and forms a second rotating sealing structure with the second sealing member 610.

[0066] The second rotating member 620 can be interference-fitted on the spindle component 200, and the side part is locked and fixed with the spindle component 200 by locking screws.

[0067] After assembly, there is a small gap between the end face of the second rotating member 620 opposite to the second sealing member 610,

[0068] to avoid hard contact and wear between the second rotating member 620 and the second sealing member 610 when the second rotating member 620 rotates relative to the second sealing member 610.

[0069] The second rotating member 620 and the second sealing member 610 correspondingly form a second rotating sealing structure at the periphery of the second passing part 611.

[0070] Through the second rotating sealing structure formed between the second rotating member 620 and the second sealing member 610, when the spindle component 200 rotates relative to the protective shell 100, the second rotating member 620 rotates relative to the second sealing member 610 to ensure that the spindle component 200 can normally rotate.

[0071] And, due to the second rotating sealing structure between the second rotating member 620 and the second sealing member 610, the dust generated during the milling process of the milling machine can not enter the second rotating bearing 510 through the second passing part 611, ensuring the normal operation of the second rotating bearing 510.

[0072] The milling machine spindle assembly in the embodiment improves the assembly structure of the spindle component 200. First, a protective shell 100 is arranged, and the first rotating bearing 310 and the second rotating bearing 510 for realizing the rotation of the spindle component 200 are both arranged in the protective shell 100. The arrangement of the protective shell 100 can shield most of the dust, avoid the dust entering the first rotating bearing 310 and the second rotating bearing 510, and realize the first layer of protection.

[0073] Secondly, the first sealing member 410 and the second sealing member 610 are arranged at the positions of the first opening part 110 and the second opening part 120 at both ends of the protective shell 100, respectively, for blocking the first opening part 110 and the second opening part 120 to avoid the dust entering the opening of the protective shell 100. In order to avoid the dust entering the first rotating bearing 310 and the second rotating bearing 510 through the first passing part 411 and the second passing part 611 of the spindle component 200, the first rotating member 420 and the second rotating member 620 cooperating with the first sealing member 410 and the second sealing member 610 are arranged on the spindle component 200, respectively, to form the first rotating sealing structure and the second rotating sealing structure around the first passing part 411 and the second passing part 611, respectively. This realizes the complete sealing of the bearing assembly arranged in the dustproof shell, effectively avoids the dust generated during the milling process of the milling machine from entering the first rotating bearing 310 and the second rotating bearing 510, ensures the stable operation of the first rotating bearing 310 and the second rotating bearing 510, and further ensures the normal and stable operation of the spindle component 200.

[0074] In addition, the spindle assembly structure in the embodiment is arranged with the first rotating bearing 310 and the second rotating bearing 510 cooperating with the spindle component 200 arranged above and below, which can support and stabilize the spindle component 200 reliably, so that the spindle component 200 can run stably without shaking and abnormal noise.

[0075] In some embodiments of the present application, the first rotating sealing structure comprises:

[0076] Two first annular recesses 412 are formed on the first sealing member 410, and a first annular protrusion 413 is formed between the two first annular recesses 412.

[0077] The first annular recess 412 is a first annular recess groove, and the first annular protrusion 413 is formed between the two first annular recess grooves.

[0078] The first rotating member 420 is formed with two second annular protrusions 421 and a second annular recess 422 formed between the two second annular protrusions 421.

[0079] The second annular recess 422 is a second annular recess groove, and the second annular protrusions 421 correspondingly form the second annular recess groove.

[0080] The two first annular recesses 412 and the two second annular protrusions 421 are inserted and fitted, and the first annular protrusion 413 and the second annular recess 422 are inserted and fitted.

[0081] When fitted, the first annular recess groove on the first sealing member 410 and the second annular protrusion 421 on the first rotating member 420 are inserted and fitted, and the first annular protrusion 413 and the second annular recess groove are inserted and fitted. In this way, the recess and protrusion are alternately inserted and fitted, which can effectively block the transmission path of dust and prevent dust from entering the first through portion 411 through the gap, thereby achieving good sealing and dustproof effect.

[0082] The second rotating sealing structure is the same as the first rotating sealing structure, and will not be described here.

[0083] In some embodiments of the present application, the main shaft assembly further comprises:

[0084] The first limiting stop component is arranged in the protective shell 100 and is used for limiting and stopping the first rotating bearing 310 at both ends, and comprises a first end face limiting table 130 formed on the protective shell 100.

[0085] The second end face limiting member 320 is sleeved on the main shaft component 200 and is inserted into the protective shell 100.

[0086] The second end face limiting member 320 is an elastic limiting stop ring.

[0087] After the first rotating bearing 310 and the main shaft component 200 are assembled, the first end face limiting table 130 is used to limit and stop one end of the first rotating bearing 310, and the second end face limiting member 320 is used to limit and stop the other end of the first rotating bearing 310, so that the first rotating bearing 310 is assembled in place, cooperates stably with the main shaft component 200, and the main shaft component 200 is prevented from shaking during rotation.

[0088] In some embodiments of the present application, a third limiting member 520 for limiting one end face of the second rotating bearing 510 is fixed on the main shaft component 200.

[0089] The second sealing member 610 is pressed on the other end face of the second rotating bearing 510 to limit the other end face of the second rotating bearing 510.

[0090] The second sealing member 610 not only seals the second opening part 120, but also is arranged on the end face of the second rotating bearing 510 to limit the end face of the second rotating bearing 510, and cooperates with the third limiting member 520 to limit and fix the two end faces of the second rotating bearing 510.

[0091] In some embodiments of the present application, the main shaft part 200 comprises a threaded matching section, and the third limiting member 520 is screwed on the threaded matching section.

[0092] The threaded matching section is provided with an external thread, and the third limiting member 520 is a limiting nut, and two limiting nuts are arranged and screwed on the main shaft part 200 in sequence along the height direction of the main shaft part 200.

[0093] By arranging the third limiting member 520 as a limiting nut and directly screwing the main shaft part 200, quick installation and assembly can be facilitated.

[0094] Arranging two limiting nuts can avoid the problem that the second rotating bearing 510 moves along the threaded matching section and causes the loosening of the limiting of the second rotating bearing 510 due to the action of the second rotating bearing 510 on the limiting nut during long-term rotation. By arranging two limiting nuts, the stability of the limiting of the second rotating bearing 510 is ensured, and the movement of the second rotating bearing 510 is avoided.

[0095] In some embodiments of the present application, the main shaft part 200 comprises a main body section 210, a transition section 220 connected to the main body section 210, and the outer diameter of the transition section 220 gradually increases in the direction away from the first opening part 110.

[0096] The outer diameter of the main body section 210 is smaller than the minimum outer diameter of the transition section 220.

[0097] The main body section 210 is at least partially arranged in the protective shell 100, and the main body section 210 is arranged to have a small outer diameter, which facilitates the assembly of the main body section 210 and the protective shell 100, reduces the volume of the protective shell 100 and the occupied space outside.

[0098] A connecting section 230 is connected to the transition section 220, and the outer diameter of the connecting section 230 is greater than the maximum outer diameter of the transition section 220, and the connecting section 230 is locked and fixed with the milling cutter part 700.

[0099] The transition section 220 is arranged outside the protective shell 100 and is used to connect the main body section 210 and the connecting section 230, and the outer diameter of the transition section 220 gradually increases to enhance the strength of the entire main shaft part 200.

[0100] The outer diameter of the connecting section 230 is the largest, which is connected with the milling cutter component 700, so as to ensure the support strength of the milling cutter component 700 and ensure the stable milling operation of the milling cutter component 700.

[0101] In some embodiments of the present application, the milling cutter component 700 has a plug-in portion 710, the connecting section 230 is plugged into the plug-in portion 710, the connecting section 230 has a connecting end surface 231, the plug-in portion 710 has a plug-in end surface 711 which is arranged opposite to the connecting end surface 231 and abuts with each other, and recess grooves are arranged on at least one of the connecting end surface 231 and the plug-in end surface 711.

[0102] The plug-in portion 710 is a plug-in groove formed in the milling cutter component 700, the connecting section 230 is plugged into the plug-in groove and locked and fixed by a screw and the plug-in groove to realize the connection with the milling cutter component 700.

[0103] The spindle component 200 and the milling cutter component 700 are connected by plug-in and locking screw, so as to realize the detachable connection of the milling cutter component 700 and the spindle component 200, the milling cutter component 700 can be conveniently disassembled and replaced when it is damaged, and compared with the prior integrated structure, the milling cutter component 700 needs to be completely replaced when it is damaged, so the cost is reduced.

[0104] The recess grooves are arranged on one of the connecting end surface 231 and the plug-in end surface 711 which are in contact with each other, which is mainly used for reducing the contact area of the milling cutter component 700 and the connecting section 230, so that the milling cutter component 700 can be quickly butt-jointed in place with the connecting section 230 during assembly, so as to realize the quick assembly and fixation of the milling cutter component 700.

[0105] In some embodiments of the present application, the spindle assembly comprises:

[0106] The passive connecting portion 240 is internally hollow and is sleeved on the part of the spindle component 200 which extends from the first opening portion 110, and a step portion 241 is formed on the inner wall of the passive connecting portion 240.

[0107] The passive connecting portion 240 is a passive pulley portion which is used for connecting with a belt and transmitting power to the spindle component 200.

[0108] The pressing member 250 is pressed on the step portion 241 and is locked and fixed on the end portion of the spindle component 200 by a locking bolt.

[0109] The gasket assembly 260 is arranged between the pressing member 250 and the locking bolt.

[0110] The pressing member 250 is a pressing plate, which is pressed on the stepped portion 241 of the passive connecting portion 240 and locked and fixed with the main shaft member 200, so as to realize the firm connection between the passive connecting portion 240 and the main shaft member 200.

[0111] The gasket assembly 260 comprises flat gaskets and spring gaskets, which are sequentially sleeved on the locking bolt and are tightly fixed by the pressing member 250.

[0112] In some embodiments of the present application, a first oiling portion 414 is arranged on the first sealing member 410 and located at an upper position of the first rotating bearing 310, and the first oiling portion 414 communicates with the space between the protective shell 100 and the main shaft member 200.

[0113] The first oiling portion 414 is a first oiling port, which communicates with the space between the protective shell 100 and the main shaft member 200.

[0114] The first oiling member 415 is detachably connected to the first oiling portion 414 and is used for oiling the first rotating bearing 310 in the protective shell 100.

[0115] The first oiling member 415 is a straight-through type pressure oil cup, which is used for oiling the first rotating bearing 310 through the first oiling portion 414.

[0116] In order to prevent the lubricating oil from dripping downward, the first rotating bearing 310 is selected as a single-sided sealing bearing, which is sealed at the lower end and open at the upper end, so as to facilitate oiling and prevent the lubricating oil from dripping.

[0117] The first rotating bearing 310 can be regularly added with lubricating oil through the first oiling member 415, so as to ensure the reliable operation of the first rotating bearing 310.

[0118] The second oiling portion 140 is arranged on the protective shell 100 and located at an upper position of the second rotating bearing 510, and the second oiling portion 140 communicates with the space inside the protective shell 100.

[0119] The second oiling portion 140 is a second oiling port, which is located at an upper position of the second rotating bearing 510.

[0120] The second oiling member 150 is detachably connected to the second oiling portion 140 and is used for oiling the second rotating bearing 510 in the protective shell 100.

[0121] The second oiling member 150 is a straight-through type pressure oil cup, which is used for oiling the second rotating bearing 510 through the second oiling portion 140.

[0122] In order to prevent the lubricating oil from dripping downward, the second rotating bearing 510 is selected as a single-sided sealing bearing, which is sealed at the lower end and open at the upper end, so as to facilitate oiling and prevent the lubricating oil from dripping.

[0123] The second rotating bearing 510 can be regularly added with lubricating oil through the second oiling member 150, so as to ensure reliable operation of the second rotating bearing 510.

[0124] In some embodiments of the present application, a plate milling machine is provided, comprising the spindle assembly described in the above embodiments, and further comprising:

[0125] The driving device 800 is provided at least one, and the driving device 800 is provided with a driving connection part 810 at the end;

[0126] The spindle assembly is provided at least two;

[0127] Each driving device 800 is connected with the spindle assembly through the connection belt 820 wound on the driving connection part 810 and the passive connection part 240 of the two spindle assemblies.

[0128] The driving connection part 810 is a driving pulley part, and the driving device 800 is a driving motor, which has an output shaft provided with the driving connection part 810.

[0129] When each driving device 800 rotates, the two spindle assemblies are synchronously driven to rotate.

[0130] When connected, the connection belt 820 can be provided with four, two of which are wound on the passive connection part 240 and the driving connection part of one spindle assembly, and the other two are wound on the passive connection part 240 and the driving connection part of the other spindle assembly, so as to realize the effect of driving the two spindle assemblies to rotate through the driving connection part 810 when the driving device rotates.

[0131] The two spindle assemblies and the milling cutter part 700 are synchronously driven to rotate through one driving device 800, so as to improve the milling efficiency.

[0132] The above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions claimed by the present application.

Claims

1. A panel mill spindle assembly, characterized by, The main shaft assembly comprises: a protective shell, first and second opening portions are formed at two ends of the protective shell; a main shaft component arranged in the protective shell and having two ends extending out of the first and second opening portions; a first rotary bearing assembled on the main shaft component, arranged in the protective shell and close to the first opening portion; a first sealing member fixedly connected with the protective shell and sealing the first opening portion, a first passing portion for passing the main shaft component being arranged above the first sealing member; a first rotary member connected with the main shaft component and having a first rotary sealing structure formed with the first sealing member and located around the first passing portion; a second rotary bearing assembled on the main shaft component, arranged in the protective shell and close to the second opening portion; a second sealing member fixedly connected with the protective shell and sealing the second opening portion, a second passing portion for passing the main shaft component being formed above the second sealing member; a second rotary member connected with the main shaft component and having a second rotary sealing structure formed with the second sealing member and located around the second passing portion.

2. The panel mill spindle assembly of claim 1, wherein, The first rotary sealing structure comprises: two first annular recesses formed on the first sealing member and a first annular protrusion formed between the two first annular recesses; two second annular protrusions formed on the first rotary member and a second annular recess formed between the two second annular protrusions; wherein the two first annular recesses and the two second annular protrusions are insertedly fitted, and the first annular protrusion and the second annular recess are insertedly fitted.

3. The panel mill spindle assembly of claim 1, wherein, Further comprising: a first limiting stop component arranged in the protective shell and used for limiting and stopping the two end faces of the first rotary bearing, comprising a first end face limiting platform formed on the protective shell; a second end face limiting member sleeved on the main shaft component and insertedly fitted in the protective shell.

4. The panel mill spindle assembly of claim 1, wherein, comprising a third limiting member for limiting one of the end faces of the second rotary bearing, the third limiting member being fixed on the main shaft component; the second sealing member being pressed on the other end face of the second rotary bearing to limit the other end face of the second rotary bearing.

5. The panel mill spindle assembly of claim 4, wherein, the main shaft component comprises a threaded fitting section, and the third limiting member is screwed on the threaded fitting section.

6. The main shaft assembly of the plate milling machine according to claim 1, wherein the main shaft component comprises a main body section; a transition section connected to the main body section, the outer diameter of the transition section gradually increasing in a direction away from the first opening portion; a connecting section connected to the transition section, the outer diameter of the connecting section being greater than the maximum outer diameter of the transition section, and the connecting section being locked and fixed with the milling cutter component.

7. The panel mill spindle assembly of claim 6, wherein, the milling cutter component has an inserted fitting portion, the connecting section being insertedly fitted into the inserted fitting portion, the connecting section having a connecting end face, and the inserted fitting portion having an inserted fitting end face oppositely arranged and abutting with the connecting end face, at least one of the connecting end face and the inserted fitting end face being provided with a recessed groove.

8. The panel mill spindle assembly of claim 1, wherein, comprising: a passive connecting portion being hollow inside and sleeved on the portion of the main shaft component extending out of the first opening portion, a step portion being formed on the inner wall of the passive connecting portion; a pressing member pressed on the step portion and locked and fixed on the end portion of the main shaft component by a locking bolt; a gasket assembly arranged between the pressing member and the locking bolt.

9. The main shaft assembly of the board milling machine according to claim 1, characterized in that, a first oiling part is arranged on the first seal, and the first oiling part is communicated with the space between the protective shell and the main shaft part; a first oiling member is detachably connected to the first oiling part, and is used for oiling the first rotating bearing in the protective shell; a second oiling part is arranged on the protective shell at a position above the second rotating bearing, and the second oiling part is communicated with the space inside the protective shell; a second oiling member is detachably connected to the second oiling part, and is used for oiling the second rotating bearing in the protective shell.

10. A panel mill comprising the spindle assembly of any one of claims 1-9, characterized in that, Further comprising: at least one driving device, and an active connection part is arranged at the end of the driving device; at least two main shaft assemblies; wherein each driving device is connected with the main shaft assembly through a connecting belt wound on the active connection part and passive connection parts of the two main shaft assemblies.

Images