Oil tank sealing type main shaft seat

Abstract

The utility model belongs to the technical field of main shaft seats, and particularly relates to an oil tank sealing type main shaft seat which comprises a main shaft seat and a main shaft, an oil tank is arranged on the left side in the main shaft seat, an oil inlet is formed in the top of the oil tank, and an oil tank sealing assembly is installed at the top of the oil inlet and provided with an oil tank cover. The oil tank cover seals the oil inlet in a sleeving mode through threads, a sealing cylinder is arranged in the oil tank cover, a plurality of second sliding grooves are formed in the side wall of the sealing cylinder in a penetrating mode, clamping blocks are slidably connected to the second sliding grooves, a plurality of clamping grooves are formed in the inner side wall of the oil inlet, and the outer side of the sealing cylinder is sleeved with an elastic sealing sleeve. The elastic sealing sleeve is clamped on the clamping groove through the clamping block to achieve double sealing, the jacking mechanism is installed in the sealing cylinder, the clamping block is jacked through elastic force of a spring in the jacking mechanism to avoid separation, and due to the fact that the sealing cylinder slides on the first sliding groove through the sliding plate, sealing of the sealing cylinder cannot be relieved after the fuel tank cover is loosened.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of main shaft seat, specifically is a tank sealed type main shaft seat. BACKGROUND

[0002] The shaft seat is a key component in mechanical equipment, especially in machine tools, motors and other rotating equipment, playing a crucial role. It not only supports the rotational movement of the main shaft, but also is responsible for transmitting torque and bearing radial and axial loads. Some main shaft seats store lubricating oil through built-in oil tanks to ensure that the main shaft and its bearings are continuously and properly lubricated during long-term, high-load operation.

[0003] In the prior art, due to the long-term shaking of the main shaft during rotation, the threaded seal cover of the oil tank often becomes loose, which may cause lubricating oil leakage and external contaminants to enter the oil tank, thereby affecting the normal operation and lubrication effect of the main shaft seat. In addition, the long-term rotation of the main shaft generates a large amount of heat in the main shaft seat, which affects the service life of the main shaft seat. Therefore, we propose a tank sealed type main shaft seat. SUMMARY

[0004] The utility model provides a kind of oil tank sealing type main shaft seat, oil tank is provided in the inside left side of main shaft seat, the top of oil tank is equipped with oil inlet, the top of oil inlet penetrates the shell of main shaft seat and extends, and oil tank sealing assembly is installed in the top of oil inlet, the oil tank sealing assembly sets oil tank cover, oil tank cover is sealed by thread sleeve joint oil inlet, and slide groove one is equipped in the side wall of oil tank cover, sliding plate is slidably connected on slide groove one, the bottom side of sliding plate is fixedly connected with sealing cylinder, the side wall of sealing cylinder is equipped with several slide grooves two, several slide grooves two are slidably connected with clamping block, the inside side wall of oil inlet is equipped with several clamping grooves, the outside of sealing cylinder is equipped with elastic sealing sleeve, and double sealing is realized by clamping block with elastic sealing sleeve is clamped in clamping groove, top-tight mechanism is installed in the inside of sealing cylinder, and spring force in top-tight mechanism is pressed against clamping block to avoid disengagement, and because sealing cylinder is slid on slide groove one by sliding plate, when oil tank cover loosens, sealing cylinder also does not remove seal;Between the oil tank and main shaft installation groove, oiling assembly is installed, the oiling assembly sets oil supply pump, and the lubricating oil of oil tank is delivered to oil supply channel by oil supply pump, and then is delivered to oil outlet groove and sealing groove by first communication groove, the lubricating oil of oil outlet groove can be lubricated to the surface of main shaft, and labyrinth seal fixed part and labyrinth seal rotating part are arranged in sealing groove, the surface of main shaft is sleeved with labyrinth seal rotating part, and labyrinth seal fixed part is fixedly connected in sealing groove, after adding lubricating oil, the labyrinth seal of main shaft installation groove is realized by the cooperation of labyrinth seal fixed part and labyrinth seal rotating part, then the lubricating oil of oil outlet groove and sealing groove returns to oil return channel by second communication groove, and returns to oil tank by cooperating with oil return pipe, realizes circulation lubrication, and removes heat generated when main shaft rotates in the process of circulation, solve the problem of background.

[0005] To achieve the above object, the utility model discloses a kind of oil tank sealing type main shaft seat, including main shaft seat and main shaft, the right side of the main shaft seat is equipped with main shaft installation groove, the inner wall of the main shaft installation groove is installed with two groups of bearings, and the two groups of bearings are all sleeved on the outer surface of main shaft, the inside left side of the main shaft seat is provided with oil tank, the top of the oil tank is equipped with oil inlet, the top of the oil inlet penetrates the shell of main shaft seat and extends, the top of the oil inlet is installed with oil tank sealing assembly, the main shaft installation groove is installed with main shaft sealing assembly, and oiling assembly is installed between the oil tank and main shaft installation groove;Oil tank sealing assembly includes oil tank cover, and the top of the oil tank cover is threaded sleeve joint in the top of oil inlet, the side wall top of the oil tank cover is equipped with slide groove one, sliding plate is slidably connected on slide groove one, the bottom side of sliding plate is fixedly connected with sealing cylinder, the side wall of sealing cylinder is equipped with several slide grooves two, several slide grooves two are slidably connected with clamping block, the inside side wall of oil inlet is equipped with several clamping grooves, the clamping block is clamped in clamping groove, the outside of sealing cylinder is equipped with elastic sealing sleeve, and the inside of sealing cylinder is installed with top-tight mechanism.

[0006] Preferably, the top pressing mechanism comprises a fixed rod, the top and bottom ends of the fixed rod are fixedly connected to the bottom side of the sliding plate and the inner bottom side of the sealing cylinder respectively, the side close to the inner side of the sealing cylinder of the clamping block is fixedly connected with a limiting plate, two groups of limiting rods are slidably arranged on the limiting plate, the two ends of the limiting rods are fixedly connected to the outer surface of the fixed rod and the inner wall of the sealing cylinder respectively, a spring is sleeved on the limiting rod, and the two ends of the spring are in abutment with the outer surface of the fixed rod and the side of the limiting plate close to the fixed rod.

[0007] Preferably, the main shaft sealing assembly comprises a sealing groove, the sealing groove is provided in two groups, the sealing groove is arranged on the inner wall of the main shaft mounting groove, the inner wall of the sealing groove is fixedly connected with a labyrinth sealing fixed part, the outer surface of the main shaft is fixedly sleeved with a labyrinth sealing rotating part, and the labyrinth sealing fixed part is clamped with the labyrinth sealing rotating part.

[0008] Preferably, the oil feeding assembly comprises an oil feeding pump, the oil feeding pump is fixedly installed on the inner left side of the main shaft seat, the input end and the output end of the oil feeding pump are fixedly communicated with a first oil conveying pipe and a second oil conveying pipe respectively, the other end of the first oil conveying pipe is fixedly communicated with the bottom of the oil tank, the right part of the main shaft seat is provided with an oil feeding channel and an oil return channel on the upper side and the lower side respectively, the output end of the second oil conveying pipe is fixedly communicated with the input end of the oil feeding channel, the output end of the oil return channel is fixedly communicated with an oil return pipe, the other end of the oil return pipe is fixedly communicated on the oil tank, a plurality of oil outlet grooves are arranged on the inner wall of the main shaft mounting groove, the top of the oil outlet groove and the sealing groove is provided with a first communication groove, the bottom of the oil outlet groove and the sealing groove is provided with a second communication groove, the other end of the first communication groove is fixedly communicated on the oil feeding channel, and the other end of the second communication groove is fixedly communicated on the oil return channel.

[0009] Preferably, the bottom corners of the main shaft seat are provided with mounting holes, and the top and left and right sides of the main shaft seat are fixedly installed with lifting lugs.

[0010] Preferably, the left and right sides of the oil tank are sleeved with gaskets.

[0011] The oil tank sealing type main shaft seat has the following beneficial effects compared with the prior art:

[0012] 1. This type of oil tank sealed spindle seat has an oil tank located on the left side inside the spindle seat. An oil inlet is located at the top of the oil tank, extending through the spindle seat housing. An oil tank sealing assembly is installed at the top of the oil inlet. This assembly includes an oil tank cover, which seals the oil inlet via a threaded connection. A sliding groove is formed on the side wall of the oil tank cover, and a sliding plate is slidably connected to the first groove. A sealing cylinder is fixedly connected to the bottom of the sliding plate. Several sliding grooves are formed through the side wall of the sealing cylinder, and snap-fit ​​blocks are slidably connected to each of the second sliding grooves. Several snap-fit ​​grooves are formed on the inner side wall of the oil inlet. An elastic sealing sleeve is fitted onto the outer side of the sealing cylinder. The snap-fit ​​blocks engage the elastic sealing sleeve with the snap-fit ​​grooves to achieve a double seal. A tightening mechanism is installed inside the sealing cylinder. A spring in the tightening mechanism holds the snap-fit ​​blocks in place to prevent them from disengaging. Since the sealing cylinder slides on the first sliding groove via the sliding plate, the sealing cylinder will not release the seal even if the oil tank cover is loosened.

[0013] 2. This oil tank sealed spindle seat has an oil filling component installed between the oil tank and the spindle mounting groove. The oil filling component is equipped with an oil supply pump, which delivers lubricating oil from the oil tank to the oil supply channel, and then to the oil outlet groove and sealing groove through the first connecting groove. The lubricating oil in the oil outlet groove can lubricate the spindle surface. The sealing groove is equipped with a labyrinth seal fixing component and a labyrinth seal rotating component. The labyrinth seal rotating component is sleeved on the spindle surface, and the labyrinth seal fixing component is fixedly connected in the sealing groove. After the addition of lubricating oil, the labyrinth seal of the spindle mounting groove is achieved through the cooperation of the labyrinth seal fixing component and the labyrinth seal rotating component. Then, the lubricating oil in the oil outlet groove and the sealing groove returns to the oil return channel through the second connecting groove, and returns to the oil tank through the oil return pipe to achieve circulating lubrication. During the circulation process, the heat generated by the spindle rotation is carried away. Attached Figure Description

[0014] Figure 1 This is a front view structural diagram of the main body of this utility model;

[0015] Figure 2 This is a schematic diagram of the rear cross-sectional structure of the main body of this utility model;

[0016] Figure 3 This is a top view of the fuel tank structure of this utility model;

[0017] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0018] Figure 5 This utility model Figure 2 Enlarged schematic diagram of the structure at point B;

[0019] Figure 6 This utility model Figure 3 Enlarged schematic diagram of the structure at point C.

[0020] In the figure: 1, main shaft seat; 2, main shaft; 3, lifting lug; 4, mounting hole; 5, oil tank; 6, oil supply pump; 7, first oil supply pipe; 8, second oil supply pipe; 9, oil return pipe; 10, bearing; 11, main shaft mounting groove; 12, oil supply channel; 13, oil return channel; 14, first communication groove; 15, second communication groove; 16, oil outlet groove; 17, gasket; 18, labyrinth seal fixing part; 19, labyrinth seal rotating part; 20, sealing groove; 21, oil inlet; 22, oil tank cover; 23, sliding groove I; 24, clamping groove; 25, elastic sealing sleeve; 26, fixing rod; 27, sealing cylinder; 28, clamping block; 29, sliding plate; 30, limiting rod; 31, limiting plate; 32, spring; 33, sliding groove II. DETAILED DESCRIPTION

[0021] 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.

[0022] Please refer to Figures 1-6 The present application provides a technical solution: an oil tank sealed type main shaft seat, comprising a main shaft seat 1 and a main shaft 2, a main shaft mounting groove 11 is formed on the right side of the main shaft seat 1, two groups of bearings 10 are installed on the inner wall of the main shaft mounting groove 11, and the two groups of bearings 10 are sleeved on the outer surface of the main shaft 2, an oil tank 5 is arranged on the inner left side of the main shaft seat 1, an oil inlet 21 is formed on the top of the oil tank 5, the top end of the oil inlet 21 penetrates the shell of the main shaft seat 1 and extends out, an oil tank sealing assembly is installed on the top of the oil inlet 21, a main shaft sealing assembly is installed on the main shaft mounting groove 11, and a refueling assembly is installed between the oil tank 5 and the main shaft mounting groove 11.

[0023] The oil tank sealed type main shaft seat is used for installing the main shaft 2 on the main shaft mounting groove 11 formed on the right side of the main shaft seat 1, and facilitating the rotating work of the main shaft 2 through the two groups of bearings 10 installed on the inner wall of the main shaft mounting groove 11, an oil tank 5 is arranged on the inner left side of the main shaft seat 1, an oil inlet 21 is formed on the top of the oil tank 5, an oil tank sealing assembly is installed on the top of the oil inlet 21, double sealing of the oil tank 5 is realized through the oil tank sealing assembly, sealing of the main shaft mounting groove 11 is realized through the main shaft sealing assembly, and circulation of refueling lubricating oil between the oil tank 5 and the main shaft mounting groove 11 is realized through the refueling assembly.

[0024] The fuel tank sealing assembly includes a fuel tank cover 22, which is threaded onto the top of the fuel inlet 21. A groove 23 is provided on the top of the side wall of the fuel tank cover 22. A sliding plate 29 is slidably connected to the groove 23. A sealing cylinder 27 is fixedly connected to the bottom of the sliding plate 29. A plurality of grooves 33 are provided through the side wall of the sealing cylinder 27. A snap-fit ​​block 28 is slidably connected to each groove 33. A plurality of snap-fit ​​grooves 24 are provided on the inner side wall of the fuel inlet 21. The snap-fit ​​block 28 snaps into the snap-fit ​​grooves 24. An elastic sealing sleeve 25 is fitted on the outer side of the sealing cylinder 27. A tightening mechanism is installed inside the sealing cylinder 27.

[0025] The clamping mechanism includes a fixed rod 26, the top and bottom of which are fixedly connected to the bottom side of the sliding plate 29 and the inner bottom side of the sealing cylinder 27, respectively. A limiting plate 31 is fixedly connected to the side of the snap block 28 near the inside of the sealing cylinder 27. Two sets of limiting rods 30 are slidably passed through the limiting plate 31. The two ends of the limiting rods 30 are fixedly connected to the outer surface of the fixed rod 26 and the inner wall of the sealing cylinder 27, respectively. A spring 32 is sleeved on the limiting rod 30. The two ends of the spring 32 abut against the outer surface of the fixed rod 26 and the side of the limiting plate 31 near the fixed rod 26, respectively.

[0026] The fuel tank sealing assembly first seals the fuel tank 5 by threading the fuel tank cap 22 onto the top of the oil inlet 21. During the tightening of the fuel tank cap 22, the sliding plate 29 is squeezed, thereby squeezing the sealing cylinder 27. The spring 32 squeezes the limiting plate 31 to slide on the limiting rod 30 and abut against the inner wall of the sealing cylinder 27. This further squeezes the snap-fit ​​block 28 to slide on the second slide groove 33, so that the snap-fit ​​block 28 abuts against the elastic sealing sleeve 25 and is locked in the snap-fit ​​groove 24 of the oil inlet 21 to achieve a second seal. Since the sealing cylinder 27 slides on the first slide groove 23 through the sliding plate 29, the fuel tank cap 22 is prevented from loosening and affecting the sealing of the sealing cylinder 27.

[0027] The spindle sealing assembly includes a sealing groove 20, and two sets of sealing grooves 20 are provided. Both sets of sealing grooves 20 are opened on the inner wall of the spindle mounting groove 11. A labyrinth seal fixing component 18 is fixedly connected to the inner wall of the sealing groove 20. A labyrinth seal rotating component 19 is fixedly sleeved on the outer surface of the spindle 2. The labyrinth seal fixing component 18 and the labyrinth seal rotating component 19 are engaged.

[0028] The spindle sealing assembly uses a labyrinth seal fixing component 18 and a labyrinth seal rotating component 19 in the sealing groove 20. The labyrinth seal fixing component 18 is fixedly connected to the inner wall of the sealing groove 20, and the labyrinth seal rotating component 19 is fixedly sleeved on the outer surface of the spindle 2. The labyrinth seal fixing component 18 and the labyrinth seal rotating component 19 cooperate with the lubricating oil in the sealing groove 20 to achieve a labyrinth seal on the spindle mounting groove 11.

[0029] The oiling assembly comprises an oil supply pump 6 fixedly installed at the inner left side of the main shaft base 1, the input end and the output end of the oil supply pump 6 are fixedly communicated with a first oil supply pipe 7 and a second oil supply pipe 8 respectively, the other end of the first oil supply pipe 7 is fixedly communicated with the bottom of the oil tank 5, the right part of the main shaft base 1 is provided with an oil supply channel 12 and an oil return channel 13 on the upper side and the lower side respectively, the output end of the second oil supply pipe 8 is fixedly communicated with the input end of the oil supply channel 12, the output end of the oil return channel 13 is fixedly communicated with an oil return pipe 9, the other end of the oil return pipe 9 is fixedly communicated on the oil tank 5, a plurality of oil outlet grooves 16 are arranged on the inner wall of the main shaft mounting groove 11, the top of the oil outlet groove 16 and the sealing groove 20 is provided with a first communication groove 14, the bottom of the oil outlet groove 16 and the sealing groove 20 is provided with a second communication groove 15, the other end of the plurality of first communication grooves 14 is fixedly communicated on the oil supply channel 12, the other end of the plurality of second communication grooves 15 is fixedly communicated on the oil return channel 13.

[0030] The oil tank 5 is communicated with the oil supply pump 6 through the first oil supply pipe 7 and the second oil supply pipe 8, and the oil tank 5 is communicated with the oil supply channel 12 through the second oil supply pipe 8, and the oil tank 5 is communicated with the oil return channel 13 through the oil return pipe 9.

[0031] The bottom of the main shaft base 1 is provided with a mounting hole 4 at the four corners, which is convenient for the installation of the main shaft base 1, and the top of the main shaft base 1 is fixedly installed with a lifting lug 3 on the left side and the right side, which is convenient for the hoisting of the main shaft base 1.

[0032] The left side and the right side of the oil tank 5 are provided with a gasket 17, which can avoid the damage caused by the impact when the oil tank 5 shakes.

[0033] Working principle: the oil tank sealing type spindle base, the spindle 2 is installed on the right side of the spindle base 1 and is opened the spindle installation groove 11, and through the inner wall of the spindle installation groove 11 installed two groups of bearings 10, facilitate the spindle 2 rotation work, and in the inside left side of the spindle base 1 is provided with oil tank 5, the top of the oil tank 5 is provided with oil inlet 21, through the oil tank cover 22 is screwed in the top end of the oil inlet 21 realizes the first heavy sealing of the oil tank 5, in the process of screwing the oil tank cover 22 extrusion sliding plate 29, so as to extrude sealing cylinder 27, and through the spring 32 extrusion limiting plate 31 on the limiting rod 30 sliding so as to abut in sealing cylinder 27 inner wall, further extrusion clamping block 28 on the sliding groove two 33 sliding, so that the clamping block 28 abuts against the elastic sealing sleeve 25 card in the oil inlet 21 of the clamping groove 24 realizes the second heavy sealing, and because the sealing cylinder 27 through the sliding plate 29 sliding in the sliding groove one 23, avoid the oil tank cover 22 loose influence sealing cylinder 27 sealing, and through the setting in the sealing groove 20 labyrinth sealing fixed part 18 and labyrinth sealing rotating part 19, the labyrinth sealing fixed part 18 is fixedly connected in the inner wall of the sealing groove 20, the labyrinth sealing rotating part 19 is fixedly connected in the outer surface of the spindle 2, through the cooperation of the labyrinth sealing fixed part 18 and the labyrinth sealing rotating part 19 and the lubricating oil in the sealing groove 20 realizes the labyrinth sealing of the spindle installation groove 11, and through the oil pump 6 the lubricating oil of the oil tank 5 is delivered to the second oil pipe 8 through the first oil pipe 7, in turn to the oil supply channel 12, and through the first communication groove 14 to the oil outlet groove 16 and the sealing groove 20, the lubricating oil of the oil outlet groove 16 realizes the lubrication of the spindle 2 rotation, and the lubricating oil of the oil outlet groove 16 and the sealing groove 20 is returned to the oil return channel 13 through the second communication groove 15, in turn through the oil return pipe 9 returns to the oil tank 5, realizes the circulation of oil, and takes away the heat generated by the spindle 2 rotation.

[0034] It should be noted that in this text, such as first and second relationship terms are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between the entities or operations. Moreover, the term "includes", "contains" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or equipment.

[0035] Although the embodiments of the present application have been shown and described, it is understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An oil tank sealed type spindle seat comprising a spindle seat (1) and a spindle (2), characterized in that: The right side of the main shaft seat (1) is provided with a main shaft mounting groove (11), the inner wall of the main shaft mounting groove (11) is provided with two groups of bearings (10), and the two groups of bearings (10) are sleeved on the outer surface of the main shaft (2), the left side of the inside of the main shaft seat (1) is provided with an oil tank (5), the top of the oil tank (5) is provided with an oil inlet (21), the top end of the oil inlet (21) penetrates the shell of the main shaft seat (1) and extends out, the top of the oil inlet (21) is provided with an oil tank sealing assembly, the main shaft mounting groove (11) is provided with a main shaft sealing assembly, and the oil tank (5) and the main shaft mounting groove (11) are provided with a refueling assembly. The oil tank sealing assembly comprises an oil tank cover (22), the oil tank cover (22) is threadedly sleeved at the top end of the oil inlet (21), a sliding groove one (23) is formed in the top of the side wall of the oil tank cover (22), a sliding plate (29) is slidably connected to the sliding groove one (23), a sealing cylinder (27) is fixedly connected to the bottom side of the sliding plate (29), a plurality of sliding grooves two (33) are formed in the side wall of the sealing cylinder (27), a clamping block (28) is slidably connected to each of the sliding grooves two (33), a plurality of clamping grooves (24) are formed in the inner side wall of the oil inlet (21), the clamping block (28) is clamped in the clamping grooves (24), an elastic sealing sleeve (25) is sleeved on the outside of the sealing cylinder (27), and a tightening mechanism is arranged in the inside of the sealing cylinder (27).

2. A sealed spindle base of the oil tank type according to claim 1, characterized in that: The tightening mechanism comprises a fixed rod (26), the top end and the bottom end of the fixed rod (26) are fixedly connected to the bottom side of the sliding plate (29) and the inside bottom side of the sealing cylinder (27) respectively, a limiting plate (31) is fixedly connected to the side of the clamping block (28) close to the inside of the sealing cylinder (27), two groups of limiting rods (30) are slidably arranged on the limiting plate (31), the two ends of the limiting rod (30) are fixedly connected to the outer surface of the fixed rod (26) and the inner wall of the sealing cylinder (27), a spring (32) is sleeved on the limiting rod (30), and the two ends of the spring (32) are in abutment with the outer surface of the fixed rod (26) and the side of the limiting plate (31) close to the fixed rod (26).

3. A sealed spindle base of claim 1, wherein: The main shaft sealing assembly comprises a sealing groove (20), two groups of the sealing grooves (20) are arranged, and the two groups of sealing grooves (20) are arranged on the inner wall of the main shaft mounting groove (11), the inner wall of the sealing groove (20) is fixedly connected with a labyrinth sealing fixed part (18), the outer surface of the main shaft (2) is fixedly sleeved with a labyrinth sealing rotating part (19), and the labyrinth sealing fixed part (18) is clamped with the labyrinth sealing rotating part (19).

4. A sealed spindle base of claim 1, wherein: The oiling assembly comprises an oil supply pump (6) fixedly installed at the inner left side of the main shaft base (1), the input end and the output end of the oil supply pump (6) are fixedly communicated with a first oil supply pipe (7) and a second oil supply pipe (8) respectively, the other end of the first oil supply pipe (7) is fixedly communicated with the bottom of an oil tank (5), the right part of the main shaft base (1) is provided with an oil supply channel (12) and an oil return channel (13) on the upper side and the lower side respectively, the output end of the second oil supply pipe (8) is fixedly communicated with the input end of the oil supply channel (12), the output end of the oil return channel (13) is fixedly communicated with an oil return pipe (9), the other end of the oil return pipe (9) is fixedly communicated on the oil tank (5), a plurality of oil outlet grooves (16) are formed on the inner wall of the main shaft mounting groove (11), the top of the oil outlet groove (16) and the sealing groove (20) is provided with a first communication groove (14), the bottom of the oil outlet groove (16) and the sealing groove (20) is provided with a second communication groove (15), the other end of the first communication groove (14) is fixedly communicated on the oil supply channel (12), the other end of the second communication groove (15) is fixedly communicated on the oil return channel (13).

5. A sealed spindle base of the oil tank type according to claim 1, characterized in that: The bottom of the main shaft base (1) is provided with mounting holes (4) at the four corners, the top of the main shaft base (1) is fixedly installed with lifting lugs (3) on the left side and the right side.

6. A sealed spindle base of the oil tank type according to claim 1, characterized in that: The left side and the right side of the oil tank (5) are sleeved with gaskets (17).

Images