Mechanical sealing type inner guide wheel for submerged chain conveyor

Abstract

The utility model relates to the technical field of submerged chain conveyors, in particular to a mechanical sealing type inner guide wheel for a submerged chain conveyor, which comprises a sealing machine body, an inner guide wheel shaft is rotatably connected inside the sealing machine body through a bearing, and the right side of the sealing machine body is connected with a sealing main cover in an abutting mode. The side face of the sealing main cover and the right side of the sealing machine body are in threaded connection with positioning screws through internal thread grooves, the left side of the sealing machine body is connected with a locking assembly, the surface of the locking assembly is connected with a connecting transparent cover, an oil cup is fixedly installed at the top of the sealing machine body, and the surface of an inner guide wheel shaft is connected with an inner guide wheel body. According to the sealing structure, mechanical sealing is adopted, the mechanical sealing structure replaces an oil sealing structure, the service life of the sealing structure is effectively prolonged, the sealing performance of the inner guide wheel is good, the operation cycle of the inner guide wheel is long, and the mechanical sealing type good sealing effect of the inner guide wheel can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a mechanical seal type inner guide wheel for a slag conveyor and belongs to the technical field of slag conveyors. BACKGROUND

[0002] The slag conveyor is a device for treating ash produced after boiler combustion, and is mainly used for separating solid substances meeting certain particle size from a liquid-solid mixture, and is a continuous and efficient mechanical slag removal device, wherein the inner guide wheel device is an important component of the scraper slag conveyor.

[0003] Since the inner guide wheel with a built-in bearing is widely used in the slag conveyor, an oil seal structure is basically adopted, the skeleton oil seal is in contact with ash water during operation, the ash water contains sharp ash, the oil seal is easily damaged, sealing failure occurs, ash enters the bearing, and the operation of the bearing is blocked, the service life is short, the operation time is very short, and the actual use is adversely affected, and therefore improvement is needed. SUMMARY

[0004] The utility model discloses a mechanical seal type inner guide wheel for a slag conveyor, which adopts mechanical sealing by setting a sealing structure, replaces the oil seal sealing structure with a mechanical sealing structure, effectively improves the service life of the sealing structure, makes the inner guide wheel have good sealing performance and a long operation cycle, and solves the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] The mechanical seal type inner guide wheel for a slag conveyor comprises a sealing machine body, an inner guide wheel shaft is rotationally connected to the inside of the sealing machine body through a bearing, a sealing main cover is abuttingly connected to the right side of the sealing machine body, positioning screws are screw-connected to the side surface of the sealing main cover and the right side of the sealing machine body through internal thread grooves, a locking assembly is connected to the left side of the sealing machine body, a connecting transparent cover is connected to the surface of the locking assembly, an oil cup is fixedly installed at the top of the sealing machine body, an inner guide wheel main body is connected to the surface of the inner guide wheel shaft, and a mechanical sealing sleeve with a spring is connected to the right side of the sealing machine body close to the inner wall thereof.

[0007] Further, the main body of the positioning screw is a double-section screw, and the circumference of the left-section screw in the positioning screw is smaller than that of the right-section screw.

[0008] Further, the locking assembly comprises a locking connecting groove and a locking threaded rod, the locking connecting groove is arranged on the left side of the sealing machine body, the locking threaded rod is rotationally connected to the inside of the connecting transparent cover through a bearing, and the surface of the locking threaded rod is screw-connected to the inner wall of the locking connecting groove.

[0009] Further, the left side of the connecting transparent cover is in abutment with a bolt washer, and the inner part of the bolt washer is sleeved on the surface of the locking threaded rod.

[0010] Further, the surface of the sealing machine body near the middle part is in abutment with a rubber sealing ring, and the overall shape of the rubber sealing ring is an inner package framework type.

[0011] Further, the inner part of the sealing machine body is rotationally connected with the outer surface of the inner guide wheel shaft, and the pin shaft type on the inner guide wheel shaft is a single row tapered roller bearing.

[0012] Further, the inner part of the mechanical sealing sleeve is connected with a dynamic ring and a static ring, and the surfaces of the dynamic ring and the static ring are plane-fitted.

[0013] The beneficial effects of the present application are as follows: the outer mechanical sealing inner guide wheel is used to guide the rotation of the inner guide wheel shaft at multiple positions in the inner part of the sealing machine body, that is, the mechanical sealing inner guide wheel uses a mechanical sealing structure to replace an oil seal structure, the sealing service life of the mechanical sealing sleeve is effectively improved, the inner part of the mechanical sealing sleeve is sealed by the dynamic ring and the static ring, the dynamic ring rotates with the inner guide wheel and the inner guide wheel shaft, the static ring is arranged on the bearing seat, the dynamic ring and the static ring are plane-fitted, the plane-fitted contact adopts high wear-resistant silicon carbide material, the dynamic ring is pressed by a high-strength spring, the dynamic ring and the static ring are fitted, thereby preventing the ash water from passing through and the ash slag from entering the bearing, so as to ensure the service life of the inner guide wheel, the left side of the sealing machine body is provided with the connecting transparent cover and the right side is provided with the sealing main cover, the sealing connection protection of the main body can be performed, the connecting transparent cover can be disassembled and installed through the thread connection of the locking threaded groove and the locking threaded rod, the sealing main cover can be disassembled and installed through the positioning screw, and the mechanical sealing type good sealing effect of the inner guide wheel can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0014] The drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the specific embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application.

[0015] Figure 1 is a left side view of the mechanical sealing type inner guide wheel for the slag conveyor of the present application;

[0016] Figure 2 is a front view of the mechanical sealing type inner guide wheel for the slag conveyor of the present application;

[0017] Figure 3 is a structural schematic view of the mechanical sealing sleeve in the mechanical sealing type inner guide wheel for the slag conveyor of the present application;

[0018] Figure 4 is an enlarged view of A in the mechanical sealing type inner guide wheel for the slag conveyor of the present application.

[0019] Figure 5 is the B place enlarged view of the mechanical seal type inner guide wheel for the slag conveyor of the utility model;

[0020] Marked in the figure: 1, sealing machine body;2, inner guide wheel shaft;3, sealing main cover;4, positioning screw;5, connecting transparent cover;6, oil cup;7, inner guide wheel main body;8, mechanical seal sleeve;9, locking connecting groove;10, locking threaded rod;11, bolt washer;12, rubber sealing ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0022] Embodiment 1 please refer to Figures 1-5 The utility model provides a technical scheme:

[0023] The mechanical seal type inner guide wheel for the slag conveyor, including sealing machine body 1, the inside of sealing machine body 1 is rotatably connected with inner guide wheel shaft 2 through bearing, the right side of sealing machine body 1 is abutted and is connected with sealing main cover 3, the side surface of sealing main cover 3 and the right side of sealing machine body 1 are all connected with positioning screw 4 through internal thread groove thread, the left side of sealing machine body 1 is connected with locking assembly, the surface of locking assembly is connected with connecting transparent cover 5, the top of sealing machine body 1 is fixedly installed with oil cup 6, the surface of inner guide wheel shaft 2 is connected with inner guide wheel main body 7, the right side close to the inner wall of sealing machine body 1 is connected with the mechanical seal sleeve 8 of spring.

[0024] Specifically, as shown in Figures 1-5 The main body of positioning screw 4 is double-section screw rod, and the circumference of the left section screw rod in positioning screw 4 is less than the circumference of the right section screw rod, the double-section screw rod of positioning screw 4 can be connected and locked by multiple sections of thread, so that the sealing main cover 3 can be connected, disassembled and reconnected on the right side of sealing machine body 1.

[0025] Specifically, as shown in Figures 1-5As shown, the locking assembly comprises a locking connecting groove 9 and a locking threaded rod 10, the locking connecting groove 9 is arranged on the left side of the sealing machine body 1, the inside of the connecting transparent cover 5 is rotatably connected with the locking threaded rod 10 through a bearing, the surface of the locking threaded rod 10 is threadedly connected with the inner wall of the locking connecting groove 9. The left side of the connecting transparent cover 5 abuts against a bolt washer 11, and the inside of the bolt washer 11 is sleeved on the surface of the locking threaded rod 10. Through the threaded connection of the locking threaded groove and the locking threaded rod 10, the connecting transparent cover 5 can be disassembled and assembled, and the bolt washer 11 can play a sealing effect on the connecting transparent cover 5.

[0026] Embodiment 2, please refer to Figures 1-5 The difference between the embodiment and embodiment 1 is that the surface of the sealing machine body 1 near the middle part abuts against a rubber sealing ring 12, and the overall shape of the rubber sealing ring 12 is an inner skeleton type. The rubber sealing ring 12 can be applied to the sealing machine body 1 to achieve a sealing abutting effect. The inside of the sealing machine body 1 is rotatably connected with the outer surface of the inner guide wheel shaft 2, and the type of the pin shaft on the inner guide wheel shaft 2 is a single-row tapered roller bearing, which enhances the smooth rotation effect of the inner guide wheel shaft 2 in the sealing machine body 1.

[0027] Further, the inside of the mechanical seal sleeve 8 is connected with a dynamic ring and a static ring, the surfaces of the dynamic ring and the static ring are plane-fitted, the inside of the mechanical seal sleeve 8 adopts dynamic ring and static ring fitting sealing, the dynamic ring rotates with the inner guide wheel and the inner guide wheel shaft 2, the static ring is specified on the bearing seat, the dynamic ring and the static ring adopt plane-fitting, the plane-fitting of the contact adopts high wear-resistant silicon carbide material, the dynamic ring is pressed by a high-strength spring, so that the dynamic ring and the static ring are fitted, thereby preventing the passage of grey water.

[0028] The utility model discloses a working principle: in use, adopt external mechanical seal inner guide wheel, in the inside of sealing machine body 1 multiple guide rotation structure is guided and rotates structure and helps the rotation of inner guide wheel shaft 2, namely mechanical seal inner guide wheel adopts mechanical seal structure to replace oil seal sealing structure, for mechanical seal sleeve 8 effectively improves the sealing use time, and the inside of mechanical seal sleeve 8 adopts dynamic ring and static ring fitting sealing, the dynamic ring rotates with the inner guide wheel and the inner guide wheel shaft 2, the static ring is specified on the bearing seat, the dynamic ring and the static ring adopt plane-fitting, the plane-fitting of the contact adopts high wear-resistant silicon carbide material, the dynamic ring is pressed by a high-strength spring, so that the dynamic ring and the static ring are fitted, thereby preventing the passage of grey water, and the ash cannot enter the bearing, so as to guarantee the service life of the inner guide wheel, the left side of the sealing machine body 1 is provided with the connecting transparent cover 5 and the right side is provided with the sealing main cover 3, the main body can be sealed and connected and protected, and through the threaded connection of the locking threaded groove and the locking threaded rod 10, the connecting transparent cover 5 can be disassembled and assembled, and the sealing main cover 3 can be disassembled and assembled by using the positioning screw 4, so that the mechanical sealing type good sealing effect of the inner guide wheel can be realized.

[0029] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A mechanically sealed inner guide wheel for a slag remover, comprising a sealing body (1), characterized in that: The sealing body (1) is rotatably connected to an inner guide wheel shaft (2) via a bearing. The right side of the sealing body (1) is abutted against a sealing main cover (3). The side of the sealing main cover (3) and the right side of the sealing body (1) are both threaded with positioning screws (4) via internal thread grooves. The left side of the sealing body (1) is connected to a locking component. The surface of the locking component is connected to a connecting cover (5). An oil cup (6) is fixedly installed on the top of the sealing body (1). The surface of the inner guide wheel shaft (2) is connected to an inner guide wheel body (7). A mechanical seal sleeve (8) with a spring is connected to the right side of the sealing body (1) near its inner wall.

2. The mechanically sealed inner guide wheel for a slag remover according to claim 1, characterized in that: The main body of the positioning screw (4) is a two-segment screw, and the circumference of the left-side screw segment of the positioning screw (4) is smaller than that of the right-side screw segment.

3. The mechanically sealed inner guide wheel for a slag remover according to claim 1, characterized in that: The locking assembly includes a locking connection groove (9) and a locking threaded rod (10). The locking connection groove (9) is located on the left side of the sealing body (1). The locking threaded rod (10) is rotatably connected to the inside of the connecting cover (5) via a bearing. The surface of the locking threaded rod (10) is threadedly connected to the inner wall of the locking connection groove (9).

4. The mechanically sealed inner guide wheel for a slag remover according to claim 3, characterized in that: The left side of the connecting cover (5) is abutted by a bolt washer (11), and the inside of the bolt washer (11) is fitted onto the surface of the locking threaded rod (10).

5. The mechanically sealed inner guide wheel for a slag remover according to claim 1, characterized in that: A rubber sealing ring (12) is abutted on the surface of the sealing body (1) near its middle part, and the overall shape of the rubber sealing ring (12) is an inner skeleton type.

6. The mechanically sealed inner guide wheel for a slag remover according to claim 1, characterized in that: The interior of the sealing body (1) is rotatably connected to the outer surface of the inner guide wheel shaft (2), and the pin on the inner guide wheel shaft (2) is a single-row tapered roller bearing.

7. The mechanically sealed inner guide wheel for a slag remover according to claim 1, characterized in that: The mechanical seal sleeve (8) has a rotating ring and a stationary ring connected inside, and the surfaces of the rotating ring and the stationary ring are in planar contact.

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