A sealing and lubricating mechanism for a cement silo blockage clearing machine

Abstract

The utility model discloses a sealing and lubricating mechanism of a cement silo blockage clearing machine, which belongs to the field of sealing and lubricating mechanisms of blockage clearing machines. The utility model has the following beneficial effects: the sealing mechanism is lubricated by a lubricating mechanism, the lubricating mechanism adopts a low-position oil supply and high-position oil outlet form, and is combined with an oil storage tank inside the sealing mechanism and a bottom oil inlet connecting hole and a high-position oil outlet connecting hole structure, so that the blockage clearing machine can seal and lubricate the sealing position when in use; the high and low position oil port design also makes the oil storage tank in the sealing mechanism full of oil, thereby ensuring the lubrication effect; the lubricated oil is stored in an oil receiving pot and then recycled, thereby avoiding environmental pollution; at the same time, the height difference between the oil pump and the oil receiving pot also causes a little negative pressure to be generated in the oil; due to the existence of air pressure in the blockage clearing machine, the air pressure also acts on the sealing mechanism, the sealing mechanism will be under pressure, and the negative pressure formed by the oil can also offset part of the air pressure, thereby reducing the damage of the air pressure to the sealing mechanism and increasing the service life.

Description

Technical Field

[0001] The utility model belongs to the field of sealing and lubricating mechanisms of plugging machines, in particular to a sealing and lubricating mechanism of a plugging machine for a cement silo. Background Art

[0002] Chinese patent CN212268388U discloses a cement silo bottom unloading and unblocking machine, the structural feature of which is that a stirring chamber, a stirring device and a poking rod are arranged at the unloading channel at the bottom of the cement silo to unblock the discharge of the cement silo bottom. During the unblocking, high-pressure gas is injected for pulse unblocking. However, in the prior art, in order to avoid leakage and the like, the equipment simply performs traditional sealing when in use. However, because the rotating shaft will cause great damage to the seal when running at high speed, the service life of the equipment seal is short, and frequent maintenance and replacement are required, causing inconvenience. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In order to overcome the shortcomings of the existing technology, a sealing and lubrication mechanism of a cement silo blockage clearing machine is proposed to solve the problem that when the existing technology is used, in order to avoid leakage, the equipment simply performs traditional sealing, but because the rotating shaft will cause great damage to the seal when running at high speed, the service life of the equipment seal is short, and frequent maintenance and replacement are required, causing inconvenience.

[0005] (II) Technical solution

[0006] The utility model is realized by the following technical scheme: the utility model proposes a sealing lubrication mechanism of a cement depot blockage clearing machine, the structure of which includes a blockage clearing machine, a first assembly frame and a power source, the first assembly frame is fixed to one side of the blockage clearing machine, the first assembly frame is equipped with a power source, and the power source is used to drive the blockage clearing machine to operate;

[0007] The blockage clearing machine is also equipped with a sealing mechanism and a crushing roller, and the sealing mechanism is used to seal the place where the shaft of the crushing roller passes through the blockage clearing machine;

[0008] The sealing mechanism is also connected to a lubrication mechanism, which consists of an oil outlet pipe, an oil receiving pot, an oil supply mechanism and an oil supply pipe. One end of the oil outlet pipe and the oil supply pipe are both connected to the sealing mechanism. The horizontal height of the connection between the oil outlet pipe and the sealing mechanism is higher than the horizontal height of the connection between the oil supply pipe and the sealing mechanism. The other end of the oil outlet pipe is connected to an oil receiving pot. The other end of the oil supply pipe is connected to the oil supply mechanism. The assembly position of the oil receiving pot is located at a high position of the assembly position of the oil supply mechanism.

[0009] Furthermore, the lubrication mechanism also includes a tee and a flow valve. The tee is used to connect more than two oil outlet pipes to the oil receiving pot, and the flow valve is installed on the oil outlet pipe between the tee and the sealing mechanism.

[0010] Furthermore, the lubrication mechanism also includes an oil distributor block, which is used for branching the connection between the oil supply mechanism and more than two oil supply pipes.

[0011] Furthermore, the sealing mechanism is composed of a sealing body, a sealing assembly, a sealing cover, a mounting body, an oil inlet connecting hole, an oil storage tank, a connecting hole and an oil outlet connecting hole. The mounting body is sleeved on the shaft of the crushing roller. The mounting body is fixed to the place where the shaft of the crushing roller passes through the plugging remover. The mounting body is open on the side away from the inside of the plugging remover. The sealing cover is used to seal the opening of the mounting body. The sealing body is installed inside the mounting body and between the sealing cover. The sealing body, the sealing cover and the crushing roller are all equipped with sealing assemblies at their connections. An oil storage tank is provided at the connection between the sealing body and the crushing roller, the oil inlet connecting hole and the oil outlet connecting hole are both provided on the sealing body, one end of the oil inlet connecting hole and the oil outlet connecting hole are both connected to the oil storage tank, and the other end of the oil inlet connecting hole and the oil outlet connecting hole both penetrate the sealing body, the connecting hole is penetrated on the installation body, two connecting holes are provided, the oil outlet connecting hole is connected to the oil outlet pipe through one of the connecting holes, the oil inlet connecting hole is connected to the oil supply pipe through the other connecting hole, and the oil outlet connecting hole is located at a high position of the oil inlet connecting hole.

[0012] Furthermore, the sealing mechanism also includes a wear-resistant rubber sealing ring, which is assembled between the sealing body and the installation body, and a wear-resistant rubber sealing ring is also arranged between the sealing body and the sealing assembly.

[0013] Furthermore, the sealing assembly consists of a first seal, a second seal and a third seal, the first seal is assembled at the connection between the sealing cover and the crushing roller, the second seal and the third seal are assembled at the connection between the sealing body and the crushing roller, the second seal and the third seal are respectively arranged on both sides of the oil storage tank, and the second seal and the third seal are both communicated with the oil storage tank.

[0014] Furthermore, the blockage clearing machine is also provided with a bearing maintenance cover, a second assembly frame, a linkage gear, a bearing and a main body. The second assembly frame is fixed to the main body away from the first assembly frame. One end of the crushing roller is penetrated and assembled on the second assembly frame. The crushing roller penetrates the second assembly frame and is connected by a bearing. The second assembly frame is locked with a bearing maintenance cover at the part where the crushing roller penetrates and is away from the main body. The shaft of the crushing roller is covered and fixed with a linkage gear, and the linkage gear is used for the linkage between two or more crushing rollers.

[0015] Furthermore, a fixed furnace bridge staggered with the crushing rollers is fixed to the upper side of the inner side end of the main body.

[0016] Furthermore, the power source drives the crushing roller to rotate through a coupling.

[0017] Furthermore, the oil supply mechanism is composed of an oil storage pot, a filter, an oil supply pump, a controller, a pressure display and a liquid level alarm. The oil storage pot is equipped with an oil supply pump on the top, and a pressure display and a filter are installed at the connection between the oil supply pump and the oil storage pot. The oil supply pump is connected to the oil supply pipe, and the controller is used to control the oil supply pump. The liquid level alarm is arranged in the oil storage pot, and the liquid level alarm is connected to the controller.

[0018] (III) Beneficial effects

[0019] One of the above technical solutions has the following advantages or beneficial effects:

[0020] In order to solve the problem that the prior art is used to avoid leakage, the equipment simply performs traditional sealing. However, because the rotating shaft will cause great damage to the seal when running at high speed, the service life of the equipment seal is short, and frequent maintenance and replacement are required, which causes inconvenience. A lubrication mechanism is provided to lubricate the sealing mechanism. The lubrication mechanism adopts the form of low-position oil supply and high-position oil outlet. Combined with the oil storage tank inside the sealing mechanism and the bottom oil inlet connecting hole and high-position oil outlet connecting hole structure, the plugging machine can seal and lubricate the sealing position when in use. The high and low oil port design also makes the oil storage tank in the sealing mechanism full of oil to ensure the lubrication effect. The lubricated oil is stored in the oil receiving pot and then recycled to avoid environmental pollution. At the same time, the height difference between the oil pump and the oil receiving pot also causes a little negative pressure to the oil. Due to the existence of air pressure in the plugging machine, the air pressure also acts on the sealing mechanism. The sealing mechanism will bear a certain pressure. The negative pressure formed by the oil can also offset part of the air pressure, reducing the damage of the air pressure to the sealing mechanism and increasing the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0022] Figure 1 This is a structural schematic diagram of a sealing and lubricating mechanism of a cement silo blockage clearing machine of the utility model;

[0023] Figure 2 It is a cross-sectional structural schematic diagram of a top view of the utility model;

[0024] Figure 3 It is a cross-sectional structural diagram of a top view of the sealing mechanism of the utility model;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the assembly location of the sealing mechanism of the front view of the utility model;

[0026] Figure 5 It is a cross-sectional structural diagram of the front view of the sealing mechanism of the utility model;

[0027] Figure 6 This is a structural schematic diagram of the oil supply mechanism of the utility model;

[0028] In the figure: blockage clearing machine - 1, first assembly frame - 2, power source - 3, lubrication mechanism - 4, sealing mechanism - 5, crushing roller - 6, coupling - 7, bearing maintenance cover - 1a, second assembly frame - 1b, fixed furnace bridge - 1c, linkage gear - 1d, bearing - 1e, main body - 1f, oil outlet pipe - 4a, three-way - 4b, flow valve - 4c, oil receiving pot - 4d, oil distributor - 4e, oil supply mechanism - 4f, oil supply pipe - 4g, sealing body -5a, sealing assembly -5b, sealing cover -5c, installation body -5d, oil inlet connecting hole -5e, oil storage tank -5f, connecting hole -5g, oil outlet connecting hole -5h, wear-resistant rubber sealing ring -5i, first sealing part -5b1, second sealing part -5b2 and third sealing part -5b3, oil storage pot -4f1, filter -4f2, oil supply pump -4f3, controller -4f4, pressure display -4f5 and liquid level alarm -4f6. DETAILED DESCRIPTION

[0029] The present invention is further described in detail below in conjunction with the embodiments, but the implementation manner of the present invention is not limited thereto.

[0030] The utility model provides a sealing and lubricating mechanism for a cement depot blockage clearing machine: the structure thereof comprises a blockage clearing machine 1, a first assembly frame 2 and a power source 3, the first assembly frame 2 is fixed to one side of the blockage clearing machine 1, the power source 3 is assembled on the first assembly frame 2, and the power source 3 is used to drive the blockage clearing machine 1 to operate;

[0031] The blockage clearing machine 1 is also equipped with a sealing mechanism 5 and a crushing roller 6. The sealing mechanism 5 is used to seal the place where the shaft of the crushing roller 6 passes through the blockage clearing machine 1;

[0032] The sealing mechanism 5 is also connected to the lubricating mechanism 4, which is composed of an oil outlet pipe 4a, an oil receiving pot 4d, an oil supply mechanism 4f and an oil supply pipe 4g. One end of the oil outlet pipe 4a and one end of the oil supply pipe 4g are connected to the sealing mechanism 5. The horizontal height of the connection between the oil outlet pipe 4a and the sealing mechanism 5 is higher than the horizontal height of the connection between the oil supply pipe 4g and the sealing mechanism 5. The other end of the oil outlet pipe 4a is connected to the oil receiving pot 4d, and the other end of the oil supply pipe 4g is connected to the oil supply mechanism 4f. The assembly position of the oil receiving pot 4d is located at a high position of the assembly position of the oil supply mechanism 4f.

[0033] Among them, the lubrication mechanism 4 also includes a tee 4b and a flow valve 4c. The tee 4b is used to connect more than two oil outlet pipes 4a with the oil receiving pot 4d. The flow valve 4c is installed on the oil outlet pipe 4a between the tee 4b and the sealing mechanism 5, and is used to individually control the oil volume of each pipeline, increase the uniformity of the oil volume in the pipeline, and thus better control the average oil pressure at each seal.

[0034] The lubricating mechanism 4 further includes an oil distributor block 4e, and the oil distributor block 4e is used for connecting the oil supply mechanism 4f with more than two oil supply pipes 4g.

[0035] The oil distribution block 4e adopts an integrated block group with a flow regulating function to ensure that the oil supplied by the oil supply mechanism is evenly distributed to each action point.

[0036] The sealing mechanism 5 is composed of a sealing body 5a, a sealing assembly 5b, a sealing cover 5c, a mounting body 5d, an oil inlet connecting hole 5e, an oil storage tank 5f, a connecting hole 5g and an oil outlet connecting hole 5h. The mounting body 5d is sleeved on the shaft of the crushing roller 6. The mounting body 5d is fixed to the shaft of the crushing roller 6 passing through the plugging remover 1. The mounting body 5d is open away from the inside of the plugging remover 1. The sealing cover 5c is used to cover the opening of the mounting body 5d. The sealing body 5a is installed between the mounting body 5d and the sealing cover 5c. The connection between the sealing body 5a, the sealing cover 5c and the crushing roller 6 is installed. It is equipped with a sealing component 5b, and an oil storage tank 5f is provided at the connection between the sealing body 5a and the crushing roller 6. The oil inlet connecting hole 5e and the oil outlet connecting hole 5h are both provided on the sealing body 5a, and one end of the oil inlet connecting hole 5e and the oil outlet connecting hole 5h are connected to the oil storage tank 5f, and the other end of the oil inlet connecting hole 5e and the oil outlet connecting hole 5h penetrates the sealing body 5a. The connecting hole 5g is penetrated on the installation body 5d, and there are two connecting holes 5g. The oil outlet connecting hole 5h is connected to the oil outlet pipe 4a through one of the connecting holes 5g, and the oil inlet connecting hole 5e is connected to the oil supply pipe 4g through the other connecting hole 5g.

[0037] The sealing body 5a is an assembly carrier commonly used by those skilled in the art for assembling sealing components.

[0038] The oil outlet connecting hole 5h is located at a higher position than the oil inlet connecting hole 5e.

[0039] The sealing mechanism 5 further comprises a wear-resistant rubber sealing ring 5i, and the wear-resistant rubber sealing ring 5i is assembled between the sealing body 5a and the mounting body 5d.

[0040] Wherein, a wear-resistant rubber sealing ring 5i is also provided between the sealing body 5a and the sealing assembly 5b.

[0041] Among them, the sealing assembly 5b is composed of a first seal 5b1, a second seal 5b2 and a third seal 5b3. The first seal 5b1 is assembled at the connection between the sealing cover 5c and the crushing roller 6. The second seal 5b2 and the third seal 5b3 are assembled at the connection between the sealing body 5a and the crushing roller 6. The second seal 5b2 and the third seal 5b3 are respectively arranged on both sides of the oil storage tank 5f. The second seal 5b2 and the third seal 5b3 are both communicated with the oil storage tank 5f.

[0042] Among them, the blockage clearing machine 1 is also provided with a bearing maintenance cover 1a, a second assembly frame 1b, a linkage gear 1d, a bearing 1e and a main body 1f. The main body 1f is fixed with a second assembly frame 1b on the side away from the first assembly frame 2. One end of the crushing roller 6 is penetrated and assembled on the second assembly frame 1b. The crushing roller 6 penetrates the second assembly frame 1b and is connected by the bearing 1e. The second assembly frame 1b is locked with a bearing maintenance cover 1a at the part where the crushing roller 6 penetrates, away from the main body 1f. The shaft of the crushing roller 6 is covered and fixed with a linkage gear 1d, and the linkage gear 1d is used for the linkage between two or more crushing rollers 6.

[0043] A fixed furnace bridge 1c interlaced with the crushing rollers 6 is fixed to the upper side of the inner side end of the main body 1f.

[0044] The power source 3 drives the crushing roller 6 to rotate through the coupling 7.

[0045] Among them, the oil supply mechanism 4f is composed of an oil storage pot 4f1, a filter 4f2, an oil supply pump 4f3, a controller 4f4, a pressure display 4f5 and a liquid level alarm 4f6. The top of the oil storage pot 4f1 is equipped with an oil supply pump 4f3, and the connection between the oil supply pump 4f3 and the oil storage pot 4f1 is equipped with a pressure display 4f5 and a filter 4f2. The oil supply pump 4f3 is connected to the oil supply pipe 4g, and the controller 4f4 is used to control the oil supply pump 4f3. The liquid level alarm 4f6 is arranged in the oil storage pot 4f1, and the liquid level alarm 4f6 is connected to the controller 4f4.

[0046] The controller 4f4 is provided with an integrated module for adjusting the time interval and the oil supply duration.

[0047] The height of the oil receiving pot 4d is preferably set to generate a negative pressure of 0.2-0.3 MPa.

[0048] The blockage clearing machine 1 is a blockage clearing machine disclosed in a Chinese utility model patent with the name: a cement silo bottom unloading material clearing machine and the publication number: CN212268388U.

[0049] Implementation plan: During the use of the mechanism, when the blockage clearing machine 1 is running, the oil supply pump 4f3 can be automatically controlled by the controller 4f4 to supply oil. The oil supply pump 4f3 will evenly supply the lubricating oil in the oil storage pot 4f1 to the sealing mechanism 5 of each crushing roller 6 shaft through the oil supply pipe 4g and the oil distributor 4e to ensure the average oil supply pressure. The oil is supplied from the connecting hole 5g and the oil inlet hole 5e at the low position of the sealing mechanism 5 to the oil storage tank 5f in the sealing body 5a, and the connected crushing roller 6 shaft and the second shaft are connected through the oil storage tank 5f. The seal 5b2 and the third seal 5b3 are lubricated to reduce the damage to the seal component 5b caused by the rotating shaft when running at high speed, resulting in a short service life of the equipment seal component 5b, which requires frequent maintenance and replacement, causing inconvenience. When the oil storage tank 5f is filled with lubricating oil, the lubricating oil will enter the oil outlet pipe 4a from the oil outlet connecting hole 5h and the connecting hole 5g, and the discharged lubricating oil will enter the oil receiving pot 4d for collection after passing through the oil outlet pipe 4a, the three-way 4b, and the flow valve 4c. At this time, the flow valve 4c can be used to control each The oil volume of each pipeline is increased to increase the pressure uniformity of the oil volume in the pipeline, ensure the stability of the oil outlet pressure of the sealing component 5b, and combine with the oil supply pressure control to enable the mechanism lubricating oil to better maintain the pressure balance when acting on each point, and the oil receiving pot 4d is set at a high position of the oil supply pump 4f3, so that the lubricating oil will have a negative pressure effect due to gravity, further ensuring that the lubricating oil fills the oil storage tank 5f, so that the oil storage tank 5f is full, ensuring the lubrication effect, and also causing a little negative pressure in the oil to reduce the effect of the air pressure in the clearing machine 1 on the sealing mechanism 5. The oil tank 4f1 is provided with a liquid level alarm 4f6, which is combined with a controller 4f4 with an integrated module of adjustable time interval and oil supply duration to make the oil supply of the mechanism more intelligent and stable. When the shaft rod of the crushing roller 6 of the blockage clearing machine 1 rotates in the sealing mechanism 5, it is triple-sealed by the sealing body 5a, the sealing assembly 5b, the sealing cover 5c and the installation body 5d to ensure the stability of the seal.

[0050] A wear-resistant rubber sealing ring 5i is provided between the sealing body 5a and the sealing assembly 5b and the mounting body 5d, so that the lubricating oil can flow better along the oil inlet hole 5e, the oil storage tank 5f and the oil outlet hole 5h, reducing leakage. At the same time, the assembly stability of the sealing body 5a is also increased, so that the sealing body 5a is not easy to rotate with the shaft of the crushing roller 6.

[0051] In the description of the present invention, it should be noted that the directions or positional relationships indicated by the terms "up", "down", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0052] The control method of the present invention is to control by manually starting and closing the switch. The wiring diagram of the power element and the provision of power supply are common knowledge in the field, and the present invention is mainly used to protect mechanical devices, so the present invention will not explain the control method and wiring arrangement in detail.

[0053] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0054] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sealing and lubricating mechanism for a cement declogging machine, the structure of which comprises a declogging machine (1), a first assembly frame (2) and a power source (3), wherein the first assembly frame (2) is fixed to one side of the declogging machine (1), the power source (3) is assembled on the first assembly frame (2), and the power source (3) is used to drive the declogging machine (1) to operate; Features: The blockage clearing machine (1) is also equipped with a sealing mechanism (5) and a crushing roller (6), wherein the sealing mechanism (5) is used to seal the location where the shaft of the crushing roller (6) passes through the blockage clearing machine (1); The sealing mechanism (5) is also connected to a lubricating mechanism (4), which is composed of an oil outlet pipe (4a), an oil receiving pot (4d), an oil supply mechanism (4f) and an oil supply pipe (4g). One end of the oil outlet pipe (4a) and the oil supply pipe (4g) are both connected to the sealing mechanism (5). The horizontal height of the connection between the oil outlet pipe (4a) and the sealing mechanism (5) is higher than the horizontal height of the connection between the oil supply pipe (4g) and the sealing mechanism (5). The other end of the oil outlet pipe (4a) is connected to the oil receiving pot (4d), and the other end of the oil supply pipe (4g) is connected to the oil supply mechanism (4f). The assembly position of the oil receiving pot (4d) is located at a high position of the assembly position of the oil supply mechanism (4f).

2. The sealing and lubricating mechanism of the cement silo blockage clearing machine according to claim 1 is characterized by: The lubricating mechanism (4) further comprises a tee (4b) and a flow valve (4c); the tee (4b) is used to connect more than two oil outlet pipes (4a) to the oil receiving pot (4d); and the flow valve (4c) is installed on the oil outlet pipe (4a) between the tee (4b) and the sealing mechanism (5).

3. The sealing and lubricating mechanism of the cement silo blockage clearing machine according to claim 1 is characterized by: The lubricating mechanism (4) also includes an oil distributor block (4e), and the oil distributor block (4e) is used for branching the connection between the oil supply mechanism (4f) and the two or more oil supply pipes (4g).

4. The sealing and lubricating mechanism of the cement silo blockage clearing machine according to claim 1 is characterized by: The sealing mechanism (5) is composed of a sealing body (5a), a sealing assembly (5b), a sealing cover (5c), a mounting body (5d), an oil inlet connecting hole (5e), ​​an oil storage tank (5f), a connecting hole (5g) and an oil outlet connecting hole (5h). The mounting body (5d) is sleeved on the shaft of the crushing roller (6). The mounting body (5d) is fixed to the shaft of the crushing roller (6) where it passes through the plugging remover (1). The mounting body (5d) is open on the side away from the inside of the plugging remover (1). The sealing cover (5c) is used to cover the opening of the mounting body (5d). The sealing body (5a) is installed inside the mounting body (5d) and between the sealing cover (5c). The sealing assembly (5b) is installed at the connection between the sealing body (5a), the sealing cover (5c) and the crushing roller (6). An oil storage tank (5f) is provided at the connection between the sealing body (5a) and the crushing roller (6); the oil inlet connecting hole (5e) and the oil outlet connecting hole (5h) are both provided on the sealing body (5a); one end of the oil inlet connecting hole (5e) and the oil outlet connecting hole (5h) are both connected to the oil storage tank (5f); the other ends of the oil inlet connecting hole (5e) and the oil outlet connecting hole (5h) pass through the sealing body (5a); the connecting hole (5g) is provided through the mounting body (5d); two connecting holes (5g) are provided; the oil outlet connecting hole (5h) is connected to the oil outlet pipe (4a) through one of the connecting holes (5g); the oil inlet connecting hole (5e) is connected to the oil supply pipe (4g) through the other connecting hole (5g); and the oil outlet connecting hole (5h) is located at a high position of the oil inlet connecting hole (5e).

5. The sealing and lubricating mechanism of the cement silo blockage clearing machine according to claim 4 is characterized by: The sealing mechanism (5) also includes a wear-resistant rubber sealing ring (5i), which is assembled between the sealing body (5a) and the mounting body (5d). A wear-resistant rubber sealing ring (5i) is also arranged between the sealing body (5a) and the sealing assembly (5b).

6. The sealing and lubricating mechanism of the cement silo blockage clearing machine according to claim 4 is characterized by: The sealing assembly (5b) is composed of a first sealing member (5b1), a second sealing member (5b2) and a third sealing member (5b3); the first sealing member (5b1) is assembled at the connection between the sealing cover (5c) and the crushing roller (6); the second sealing member (5b2) and the third sealing member (5b3) are assembled at the connection between the sealing body (5a) and the crushing roller (6); the second sealing member (5b2) and the third sealing member (5b3) are respectively arranged on both sides of the oil storage tank (5f); and the second sealing member (5b2) and the third sealing member (5b3) are both in communication with the oil storage tank (5f).

7. The sealing and lubricating mechanism of the cement silo blockage clearing machine according to claim 1 is characterized by: The blockage clearing machine (1) is also provided with a bearing maintenance cover (1a), a second assembly frame (1b), a linkage gear (1d), a bearing (1e) and a main body (1f); the second assembly frame (1b) is fixed to the main body (1f) on the side away from the first assembly frame (2); one end of the crushing roller (6) is penetrated and assembled on the second assembly frame (1b); the crushing roller (6) is penetrated through the second assembly frame (1b) and connected through the bearing (1e); the second assembly frame (1b) is locked with a bearing maintenance cover (1a) on the side away from the main body (1f) at the point where the crushing roller (6) penetrates; the shaft of the crushing roller (6) is covered and fixed with a linkage gear (1d); the linkage gear (1d) is used for linkage between two or more crushing rollers (6).

8. The sealing and lubricating mechanism of the cement silo blockage clearing machine according to claim 7 is characterized by: A fixed furnace bridge (1c) staggered with the crushing roller (6) is also fixed on the upper side of the inner side end of the main body (1f).

9. The sealing and lubricating mechanism of the cement silo blockage clearing machine according to claim 1 is characterized by: The power source (3) drives the crushing roller (6) to rotate via a coupling (7).

10. The sealing and lubricating mechanism of the cement silo blockage clearing machine according to claim 1 is characterized by: The oil supply mechanism (4f) is composed of an oil storage pot (4f1), a filter (4f2), an oil supply pump (4f3), a controller (4f4), a pressure display (4f5) and a liquid level alarm (4f6); the oil supply pump (4f3) is mounted on the top of the oil storage pot (4f1); the pressure display (4f5) and the filter (4f2) are mounted at the connection point between the oil supply pump (4f3) and the oil storage pot (4f1); the oil supply pump (4f3) is connected to an oil supply pipe (4g); the controller (4f4) is used to control the oil supply pump (4f3); the liquid level alarm (4f6) is arranged in the oil storage pot (4f1); and the liquid level alarm (4f6) is connected to the controller (4f4).

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