Shaft seal device of sand mixer
By introducing a shaft seal device into the sand mixer, the problem of sand and gravel leakage was solved, ensuring the normal operation of the equipment and the stability of the rolling bearings, and achieving a good sealing effect.
Patent Information
- Application Number
- CN202520733646.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-04-17
AI Technical Summary
The existing sand mixers lack shaft sealing devices, causing sand and gravel to flow out through the rolling bearings, affecting the normal operation of the equipment and the service life of the rolling bearings.
A shaft sealing device for a sand mixer was designed, comprising components such as a hollow rubber disc, a lubricating grease chamber, an annular slide rail, a fixed shaft cylinder, an annular partition plate, a rubber ring, and a connecting flange. The combination of these components achieves effective sealing of the rolling bearing and prevents sand and gravel from flowing out.
This achieves a good sealing effect on the shaft end of the sand mixer, preventing sand and gravel from entering the rolling bearing and maintaining the transmission effect of the equipment and the stability of the rolling bearing.
Smart Images
Figure CN223806624U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a sand mixer shaft sealing device and belongs to the technical field of sand mixer equipment. BACKGROUND
[0002] The sand mixer is the equipment that makes the components in the molding sand even mix and makes the binder effectively cover the sand grain surface.
[0003] But the existing sand mixer in the process of using, because the power shaft lacks the corresponding shaft sealing device, make the sand and stone in the sand mixer flow out the inside of the device through the rolling bearing, and the rolling bearing is influenced to a certain extent, thereby directly influence the work of sand mixer, now the sand mixer shaft sealing device is urgently needed to solve the above problems. UTILITY MODEL CONTENTS
[0004] In view of the deficiencies in the prior art, the utility model aims at providing a sand mixer shaft sealing device to solve the problems in the background art, and the oil seal structure designed in the utility model has good sealing effect, can well encapsulate the shaft end of the sand mixer, and does not easily affect the transmission effect of the sand mixer shaft.
[0005] In order to achieve the above object, the utility model is implemented by the following technical scheme: a sand mixer shaft sealing device, which comprises a sand mixer mixing wall plate, a mounting disc, a rubber hollow disc, an annular partition plate and a fixed shaft cylinder, a rolling bearing is penetrated and installed in the middle of the sand mixer mixing wall plate, a sand mixer shaft is penetrated and installed in the rolling bearing, the mounting disc is installed at the left end of the sand mixer mixing wall plate through a plurality of bolts, two rubber hollow discs are arranged on the inner side of the mounting disc, a lubricating grease cavity is formed in each of the two rubber hollow discs, an annular slide rail is fixed in the middle of the inner wall of each of the two lubricating grease cavities, the fixed shaft cylinder is fixed at the left end outside the sand mixer shaft, two annular partition plates are installed on the annular side surface of the fixed shaft cylinder, the two annular partition plates are respectively inserted into the two lubricating grease cavities, an annular convex edge is fixed on the left and right end edges of the inner side of each of the two lubricating grease cavities, and a rubber ring is arranged on the inner side of each of the annular convex edges.
[0006] Further, the left side of the rolling bearing is provided with a shaft seal.
[0007] Further, a connecting flange is arranged at the connecting position outside each of the two rubber hollow discs, and a plurality of connecting bolts are arranged between the two connecting flanges to fix the two connecting flanges.
[0008] Further, an oil filling hole is formed in the upper end of each of the two rubber hollow discs, and an oil hole plug is arranged in each of the oil filling holes.
[0009] Further, two upper ends of the annular slide rails are respectively located below two oil filling holes, and each of the upper ends of the annular slide rails is provided with a bifurcated oil hole which is connected with the oil filling hole.
[0010] Further, two arc-shaped ends of the annular partition plates are respectively slid into the inner sides of the annular slide rails.
[0011] The beneficial effects of the mixing mill shaft sealing device are as follows: the mixing mill shaft sealing device is added with a shaft seal, a rubber hollow disc, a lubricating grease cavity, an annular slide rail, a fixed shaft cylinder, an annular partition plate, an annular convex edge, a rubber ring, a connecting flange and connecting bolts, and the design improvement and actual use show that the device has a reasonable structure, good practicability, and an oil seal structure with good sealing effect, and can achieve good packaging effect of the mixing mill shaft end and does not easily affect the transmission effect of the mixing mill shaft. BRIEF DESCRIPTION OF DRAWINGS
[0012] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the attached drawings:
[0013] Figure 1 Fig. 1 is a whole structure perspective view of the mixing mill shaft sealing device of the present application;
[0014] Figure 2 Fig. 2 is a sectional view of the mixing mill shaft sealing device of the present application;
[0015] Figure 3 Fig. 3 is a fixed shaft cylinder perspective view of the mixing mill shaft sealing device of the present application;
[0016] Figure 4 Fig. 4 is a partial enlarged view of the mixing mill shaft sealing device of the present application; Figure 2
[0017] Fig. 1 is a whole structure perspective view of the mixing mill shaft sealing device of the present application; DETAILED DESCRIPTION
[0018] In order to make the technical means, creative features, purposes and effects of the present application easy to understand, the present application is further described below in combination with specific embodiments.
[0019] Please refer to Figures 1-4 The utility model provides a technical scheme: a sand mixer shaft seal device, including sand mixer mixing wall board 1, installation disc 5, rubber hollow disc 6, annular partition board 10 and fixed axle cylinder 9, the rolling bearing 2 of sand mixer mixing wall board 1 middle penetration is installed, the sand mixer axle 3 of rolling bearing 2 inner penetration is installed, installation disc 5 is installed through a plurality of bolts in sand mixer mixing wall board 1 left end, two rubber hollow discs 6 are provided with in installation disc 5 inboard, two lubricating grease cavities 7 are all seted up in two rubber hollow discs 6, the annular slide rail 8 of two lubricating grease cavities 7 inner wall middle is all fixed with, the fixed axle cylinder 9 is fixed in sand mixer axle 3 outside left end, two annular partition boards 10 are installed in the annular side of fixed axle cylinder 9, two annular partition boards 10 are inserted in two lubricating grease cavities 7 respectively, the annular convex edge 11 of two lubricating grease cavities 7 inboard left and right end edge is all fixed with, the rubber ring 12 of a plurality of annular convex edges 11 inboard is all provided with, this design has solved the problem that the sandstone in the sand mixer inside flows out the inside of the device through the rolling bearing because the power shaft lacks the corresponding shaft seal device in the process of using the existing sand mixer.
[0020] As the first embodiment of the utility model: the shaft seal 4 is provided with in the left side of rolling bearing 2, through the shaft seal 4 of adding, can shield the left side of rolling bearing 2.Two rubber hollow discs 6 outside junction are all provided with the connecting flange 13, and the two connecting flanges 13 are all fixed through a plurality of connecting bolts 14, through the two connecting flanges 13 and a plurality of connecting bolts 14 of adding, the installation or split between two rubber hollow discs 6 is convenient.
[0021] Two oil holes 15 are all seted up in the upper end of two rubber hollow discs 6, and the oil hole plug block 16 is inserted in two oil holes 15, and the upper end of two annular slide rails 8 is respectively located in the downside of two oil holes 15, and the bifurcated oil hole is seted up in the upper end of two annular slide rails 8, and two bifurcated oil holes are connected with two oil holes 15 respectively, through the two oil holes 15 and two bifurcated oil holes of adding, the two rubber hollow discs 6 are filled with lubricating grease, ensure that the lubricating grease in two lubricating grease cavities 7 can contact two annular partition boards 10, and then make two annular partition boards 10 be driven to rotate in two rubber hollow discs 6, and it is relatively smooth. The arc-shaped end of two annular partition boards 10 is slid in the inboard of two annular slide rails 8 respectively, through the arc-shaped end of two annular partition boards 10 that adds respectively slides in the inboard of two annular slide rails 8, when filling lubricating grease in two lubricating grease cavities 7, make two annular partition boards 10 be driven to rotate, and will not produce hard friction between two annular slide rails 8.
[0022] As the second embodiment of the utility model: in the sand mixer shaft 3 is driven to rotate, the inner ring of rolling bearing 2 rotates along with, fixed axle cylinder 9 will also be driven to rotate, further make two annular partition plate 10 will also be driven to rotate, because two lubricating grease cavity 7 fills lubricating grease, and two annular partition plate 10 arc-shaped end respectively sliding in two annular slide rail 8 inside, can make two annular partition plate 10 when rotating, more smooth, can also cooperate with multiple annular convex edge 11 and multiple rubber ring 12 to the sand in sand mixer inside is blocked, guarantee sand mixer shaft 3 and rolling bearing 2 between will not be contaminated to sand, so it can guarantee the stability of rolling bearing 2 and sand mixer shaft 3 work.
[0023] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, and it is obvious for those skilled in the art that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the utility model is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.
[0024] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, and those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.
Claims
1. A sand mixer shaft sealing device, comprising a sand mixer mixing wall plate (1), a mounting disc (5), a rubber hollow disc (6), an annular partition plate (10) and a fixed shaft cylinder (9), characterized in that: The sand mixer mixing wallboard (1) is provided with a rolling bearing (2) installed in the middle, the rolling bearing (2) is provided with a sand mixer shaft (3) installed in the middle, the mounting disc (5) is installed on the left end of the sand mixer mixing wallboard (1) through a plurality of bolts, and the inner side of the mounting disc (5) is provided with two rubber hollow discs (6). Two lubricating grease cavities (7) are formed in the two rubber hollow discs (6), and an annular slide rail (8) is fixed to the inner wall of each lubricating grease cavity (7). The fixed shaft cylinder (9) is fixed to the outer left end of the sand mixer shaft (3), and two annular partition plates (10) are installed on the annular side of the fixed shaft cylinder (9). The two annular partition plates (10) are respectively inserted into the two lubricating grease cavities (7), and an annular convex edge (11) is fixed to the inner side of the left and right end edges of the two lubricating grease cavities (7). A rubber ring (12) is arranged on the inner side of the annular convex edge (11).
2. A seal for a sand conditioner shaft as defined in claim 1, wherein: The left side of the rolling bearing (2) is provided with a shaft seal (4).
3. A seal for a sand conditioner shaft as defined in claim 1, wherein: The outer connecting portions of the two rubber hollow discs (6) are provided with connecting flanges (13), and the two connecting flanges (13) are fixed through a plurality of connecting bolts (14).
4. A seal for a sand conditioner shaft as defined in claim 1, wherein: The upper ends of the two rubber hollow discs (6) are provided with oil holes (15), and the oil holes (15) are plugged with oil hole plugs (16).
5. A seal for a sand conditioner shaft as defined in claim 4, wherein: The upper ends of the two annular slide rails (8) are located below the two oil holes (15).
6. A seal for a sand conditioner shaft as defined in claim 1, wherein: The arc-shaped ends of the two annular partition plates (10) are respectively located on the inner sides of the two annular slide rails (8).
7. A seal for a sand conditioner shaft as defined in claim 5, wherein: The upper ends of the two annular slide rails (8) are provided with bifurcated oil holes, and the bifurcated oil holes are respectively connected with the two oil holes (15).