Spiral tail seat structure for sandstone separator
Patent Information
- Application Number
- CN202522524570.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-27
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-27
AI Technical Summary
When existing spiral equipment is mixing mud and water, sewage can easily enter the tailstock through gaps, causing severe wear on the bearings and shortening their lifespan.
A hollow connecting sleeve is fitted onto the outside of the drive shaft, and a sealing cap is installed at one end. The sealing cap and sealing ring are used to seal the port of the connecting sleeve to prevent sewage from entering the bearing. The bearing is limited by the limiting step and the limiting ring to ensure that it is not corroded by sewage.
It effectively prevents sewage from entering the bearing, reduces wear, and extends the bearing's service life.
Smart Images

Figure CN224930451U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of spiral equipment, and more specifically to a spiral tailstock structure for a sand and gravel separator. Background Technology
[0002] In construction sites, it is necessary to recycle and reuse excess or waste sand and gravel mixtures and water. The usual method is to first put the sand and gravel mixture into a roller filter for washing. After washing and filtering out the large pieces of sand and gravel, a muddy water is formed. The muddy water is then put into a filter tower for step-by-step filtration. Finally, the mud and sand and water are separated, and then the mixture can be recycled in the future.
[0003] Current filtration methods for muddy water typically require a spiral device to continuously agitate the muddy water. The spiral device usually consists of a detachable tailstock and a spiral assembly. When the spiral assembly malfunctions, it can be removed from the tailstock. This inevitably creates a gap between the tailstock and the spiral assembly. When the spiral device agitates the muddy water, there is a high probability that wastewater will enter the tailstock through the gap, thereby affecting the bearings of the tailstock, increasing the wear on the bearings, and reducing their lifespan. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a spiral tailstock structure for a sand and gravel separator, comprising a base, a drive shaft mounted at one end of the base, a hollow connecting sleeve fitted around the drive shaft, a spiral assembly fitted around the connecting sleeve, the spiral assembly comprising a hollow sleeve, propeller blades disposed on the outer wall of the sleeve, the sleeve being tightly fitted to the outside of the connecting sleeve, a bearing disposed between the connecting sleeve and the drive shaft, and a sealing cap disposed on one side of the bearing, the sealing cap being used to seal one end of the connecting sleeve.
[0005] Furthermore, the sealing cap includes a cap body with a protrusion extending outward from one side of the cap body. The cap body is used to seal one end of the connecting sleeve, and the outer wall of the protrusion is tightly attached to the inner wall of the connecting sleeve.
[0006] Furthermore, the outer wall of the cover is tightly attached to the inner wall of the sleeve.
[0007] Furthermore, a sealing ring is provided between the outer wall of the protrusion and the inner wall of the connecting sleeve.
[0008] Furthermore, a first limiting step and a limiting ring are provided on the outer wall of the end of the drive shaft near the sealing cover, and the bearing is disposed between the first limiting step and the limiting ring.
[0009] Furthermore, a second limiting step is provided on the outer wall of the connecting sleeve near the sealing cover, and the bearing is disposed between the second limiting step and the protrusion.
[0010] Furthermore, a sealing ring is provided on the side of the bearing away from the sealing cover, and the sealing ring is located between the connecting sleeve and the drive shaft.
[0011] Furthermore, a connecting ring is provided protruding outward on the outer wall of the connecting sleeve, and several slots are provided on the connecting ring. Several protrusions that can cooperate with the slots are provided at one end of the sleeve.
[0012] Compared with the prior art, the beneficial effects of this utility model are: This application incorporates a hollow connecting sleeve fitted around the drive shaft, with a sealing cap at one end of the connecting sleeve. This prevents external sewage from entering the bearing through the inner wall of the sleeve when the drive shaft rotates, thereby reducing bearing wear and extending bearing life. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is an exploded view of the overall structure of this utility model; Figure 2 This is a schematic diagram of the spiral assembly of this utility model; Figure 3 This is an assembly diagram of the connecting sleeve and the sealing cap of this utility model; Figure 4 This is a schematic diagram of the assembly of the drive shaft and bearing of this utility model; Figure 5 This is a cross-sectional view of the present invention.
[0015] The reference numerals and names in the figure are as follows: Base 10, drive shaft 100, connecting sleeve 200, spiral assembly 300, sleeve 310, propeller blade 320, bearing 400, sealing cover 500, cover body 510, protrusion 520, sealing ring 530, first limiting step 110, limiting ring 120, second limiting step 210, sealing ring 220, connecting ring 230, slot 231, protrusion 311. Detailed Implementation
[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0017] The present invention will now be described in more detail. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the invention. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them.
[0018] In the description of this utility model, it should be noted that directional terms such as "front, back, up, down, left, right," "horizontal, vertical, horizontal," and "top, bottom," indicating directions or positional relationships, are generally based on the directions or positional relationships shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. In the description of this utility model, it should be noted that the use of terms such as "first" and "second" to define components is merely for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this utility model. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly specified.
[0019] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the scope of the invention.
[0020] Furthermore, the technical features involved in the different embodiments of this application described below can be combined with each other as long as they do not conflict with each other.
[0021] The preferred embodiments of this utility model will now be further described with reference to the accompanying drawings. Figure 1 and Figure 2As shown, the spiral tailstock structure for a sand and gravel separator includes a base 10, a drive shaft 100 installed at one end of the base 10, a hollow connecting sleeve 200 sleeved outside the drive shaft 100, a spiral assembly 300 sleeved outside the connecting sleeve 200, the spiral assembly 300 including a hollow sleeve 310, a propeller blade 320 provided on the outer wall of the sleeve 310, the sleeve 310 closely attached to the outside of the connecting sleeve 200, a bearing 400 provided between the connecting sleeve 200 and the drive shaft 100, and a sealing cap 500 provided on one side of the bearing 400, the sealing cap 500 being used to seal one end of the connecting sleeve 200.
[0022] This application pertains to accessories for spiral mixing equipment, specifically in the tail section structure of a spiral mixing device in a sand and gravel separator. In the implementation of this application, a drive shaft 100 is provided on one side of the base 10, and the other side is used to connect a drive device, such as a rotary motor. When the rotary motor starts, it can drive the drive shaft 100 to rotate. A connecting sleeve 200 is provided outside the drive shaft 100, and a bearing 400 is installed between the connecting sleeve 200 and the drive shaft 100. Finally, the spiral assembly 300 is fixed outside the connecting sleeve 200. Thus, when the drive shaft 100 rotates, it can drive the spiral assembly 300 to rotate synchronously. A sealing cap 500 is provided on one side of the bearing 400 to prevent external sewage from entering the bearing 400 through the inner wall of the sleeve 310.
[0023] Compared with the prior art, this application has a hollow connecting sleeve 200 sleeved on the outside of the drive shaft 100, and a sealing cap 500 is provided at one end of the connecting sleeve 200. This prevents external sewage from entering the bearing 400 through the inner wall of the sleeve 310 when the drive shaft 100 rotates, thereby reducing the wear of the bearing 400 and improving its lifespan.
[0024] Furthermore, based on the above embodiments, combined with Figure 3 and Figure 5 As shown, the sealing cap 500 includes a cap body 510, with a protrusion 520 extending outward from one side of the cap body 510. The cap body 510 is used to seal one end of the connecting sleeve 200, and the outer wall of the protrusion 520 is tightly attached to the inner wall of the connecting sleeve 200. In this way, when sewage enters the sleeve 310, it will not enter the interior of the connecting sleeve 200, thus preventing contact with the bearing 400, thereby reducing wear on the bearing 400 and extending its lifespan.
[0025] Furthermore, based on the above embodiments, combined with Figure 3 and Figure 5As shown, the outer wall of the cover 510 is tightly attached to the inner wall of the sleeve 310. The cover 510 also seals the gap between the sleeve 310 and the connecting sleeve 200. When sewage enters the sleeve 310, it will not enter the space between the sleeve 310 and the connecting sleeve 200. When the drive shaft 100 rotates, the connecting sleeve 200 can better drive the sleeve 310 to rotate.
[0026] Furthermore, based on the above embodiments, combined with Figure 3 and Figure 5 As shown, a sealing ring 530 is provided between the outer wall of the protrusion 520 and the inner wall of the connecting sleeve 200. This improves the sealing effect between the protrusion 520 and the connecting sleeve 200.
[0027] Furthermore, based on the above embodiments, combined with Figure 4 and Figure 5 As shown, a first limiting step 110 and a limiting ring 120 are provided on the outer wall of the end of the drive shaft 100 near the sealing cover 500, and the bearing 400 is disposed between the first limiting step 110 and the limiting ring 120. In this way, when the drive shaft 100 rotates, the bearing 400 is limited from both ends by the first limiting step 110 and the limiting ring 120, thereby preventing wobbling of the bearing 400.
[0028] Furthermore, based on the above embodiments, combined with Figure 4 and Figure 5 As shown, a second limiting step 210 is provided on the outer wall of the connecting sleeve 200 near the sealing cover 500, and the bearing 400 is disposed between the second limiting step 210 and the protrusion 520. Thus, when the drive shaft 100 rotates, the bearing 400 is limited from both ends by the second limiting step 210 and the protrusion 520, thereby cooperating with the first limiting step 110 and the limiting ring 120 to limit both the upper and lower ends of the bearing 400, resulting in a better limiting effect.
[0029] Furthermore, based on the above embodiments, combined with Figure 4 and Figure 5 As shown, a sealing ring 220 is provided on the side of the bearing 400 away from the sealing cover 500, and the sealing ring 220 is located between the connecting sleeve 200 and the drive shaft 100. In this way, the sealing ring 220 and the sealing cover 500 can cooperate with each other to seal both ends of the bearing 400, so that sewage cannot enter from the other end of the bearing 400, thereby improving the sealing effect.
[0030] Furthermore, based on the above embodiments, combined with Figure 2 and Figure 3As shown, a connecting ring 230 protrudes outward from the outer wall of the connecting sleeve 200, and a plurality of slots 231 are provided on the connecting ring 230. A plurality of protrusions 311 that can cooperate with the slots 231 are provided at one end of the sleeve 310. When the sleeve 310 is tightly attached to the outside of the connecting sleeve 200, the protrusions 311 are embedded in the slots 231, so that when the connecting sleeve 200 rotates, it can better drive the sleeve 310 to rotate synchronously.
[0031] The details of the above exemplary embodiments are provided, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting in all respects, and the scope of the present invention is defined by the appended claims rather than the foregoing description. Therefore, it is intended that all changes falling within the meaning and scope of equivalents of the claims be included within the present invention.
Claims
1. A spiral tailstock structure for a sand and gravel separator, characterized in that, The device includes a base (10), a drive shaft (100) is mounted on one end of the base (10), a hollow connecting sleeve (200) is sleeved on the outside of the drive shaft (100), a spiral assembly (300) is sleeved on the outside of the connecting sleeve (200), the spiral assembly (300) includes a hollow sleeve (310), a propeller blade (320) is provided on the outer wall of the sleeve (310), the sleeve (310) is tightly attached to the outside of the connecting sleeve (200), a bearing (400) is provided between the connecting sleeve (200) and the drive shaft (100), a sealing cap (500) is provided on one side of the bearing (400), and the sealing cap (500) is used to seal one end of the connecting sleeve (200).
2. The spiral tailstock structure for a sand and gravel separator according to claim 1, characterized in that, The sealing cap (500) includes a cap body (510) with a protrusion (520) extending outward from one side of the cap body (510). The cap body (510) is used to seal one end of the connecting sleeve (200), and the outer wall of the protrusion (520) is in close contact with the inner wall of the connecting sleeve (200).
3. The spiral tailstock structure for a sand and gravel separator according to claim 2, characterized in that, The outer wall of the cover (510) is tightly attached to the inner wall of the sleeve (310).
4. The spiral tailstock structure for a sand and gravel separator according to claim 3, characterized in that, A sealing ring (530) is provided between the outer wall of the protrusion (520) and the inner wall of the connecting sleeve (200).
5. The spiral tailstock structure for a sand and gravel separator according to claim 2, characterized in that, A first limiting step (110) and a limiting ring (120) are provided on the outer wall of the end of the drive shaft (100) near the sealing cover (500), and the bearing (400) is disposed between the first limiting step (110) and the limiting ring (120).
6. The spiral tailstock structure for a sand and gravel separator according to claim 5, characterized in that, A second limiting step (210) is provided on the outer wall of the connecting sleeve (200) near the sealing cover (500), and the bearing (400) is disposed between the second limiting step (210) and the protrusion (520).
7. The spiral tailstock structure for a sand and gravel separator according to claim 1, characterized in that, A sealing ring (220) is provided on the side of the bearing (400) away from the sealing cover (500), and the sealing ring (220) is located between the connecting sleeve (200) and the drive shaft (100).
8. The spiral tailstock structure for a sand and gravel separator according to claim 1, characterized in that, A connecting ring (230) is provided protruding outward on the outer wall of the connecting sleeve (200), and a number of slots (231) are provided on the connecting ring (230). A number of protrusions (311) that can cooperate with the slots (231) are provided at one end of the sleeve (310).
