Gravel sorting machine for civil engineering

Abstract

The utility model provides a gravel sorting machine for civil engineering, which comprises a rotating shaft rotationally connected in a box body, a limiting block arranged on the outer side of the rotating shaft, a fixing block, a grinding roller, a spring and a fixing pin sleeved on the outer side of the rotating shaft and positioned between the limiting block and the fixing block, the outer side of the rotating shaft is fixedly sleeved with a fixing sleeve located above the limiting block through a fixing pin, connecting plates symmetrically distributed above the crushing roller are arranged on the outer side of the fixing sleeve, an adjusting mechanism is installed in each connecting plate, and a scraper located above the crushing roller is arranged at the bottom of each adjusting mechanism. According to the gravel sorting machine for civil engineering, gravel adhering to the outer side of the crushing roller can be cleaned through the scraping plate in the process that the crushing roller carries out crushing operation on the gravel, the situation that the gravel is coagulated into blocks on the outer side of the crushing roller is avoided, the screening plate is not prone to being damaged, and the sorting machine can effectively carry out crushing and sorting operation on the gravel.

Description

Technical Field

[0001] The utility model relates to the field of civil engineering, and particularly discloses a sand and gravel separator for civil engineering. Background Art

[0002] Chinese patent application number CN202322941654.1 discloses a sand and gravel sorting machine for civil engineering; it includes a box body, a feed port is provided on one side of the top of the box body, a motor is provided on the top of the box body, a stirring mechanism is provided at the bottom end of the motor, a door panel is hinged at the front end of the box body, and a sieve plate is provided in the middle of the inner wall of the box body; the utility model starts the motor, and under the action of the rotating shaft, limit ring, fixed block, spring, L-shaped plate, tooth hole, cross bar and crushing roller, the sand and gravel can be crushed by the crushing roller, and then screened by the sieve plate and sent to the collection box, and the sand and gravel can be turned over and broken up through the tooth holes on the L-shaped plate, and repeatedly screened to achieve multiple screening effects.

[0003] When the above-mentioned crushing roller is crushing sand and gravel, the sand and gravel will stick to the surface of the crushing roller. If it is not cleaned in time, it will gather into blocks on the outside of the crushing roller, which may easily damage the screening plate and make the separator unable to effectively crush and sort the sand and gravel. Utility Model Content

[0004] In view of the above-mentioned defects or deficiencies in the prior art, the present application aims to provide a sand and gravel sorting machine for civil engineering, comprising a rotating shaft rotatably connected to the inside of a box body, a limit block, a fixed block, a crushing roller and a spring arranged on the outside of the rotating shaft, and a fixing pin sleeved on the outside of the rotating shaft and located between the limit block and the fixed block. The outside of the rotating shaft is fixed with a fixing sleeve located above the limit block through the fixing pin, and the outside of the fixing sleeve is provided with connecting plates symmetrically distributed above the crushing roller, an adjusting mechanism is installed inside the connecting plate, and a scraper located above the crushing roller is provided at the bottom of the adjusting mechanism.

[0005] Preferably, the adjustment mechanism includes a first guide rod and a second guide rod which are movably sleeved inside the connecting plate and arranged on the top of the scraper. The first guide rod and the second guide rod extend out of the top outer side of the connecting plate and are fixedly sleeved with a fixing plate. The internal thread of the fixing plate is sleeved with a screw rod whose bottom end is rotatably connected to the inside of the connecting plate.

[0006] Preferably, the outer side of the screw rod is threadedly sleeved with a limiting nut located above the fixing plate.

[0007] Preferably, both sides of the bottom of the scraper are chamfered.

[0008] Beneficial effects:

[0009] 1. The civil engineering sand and gravel separator uses a scraper to enable the crushing roller to clean the sand and gravel adhering to the outside of the crushing roller during the crushing operation, thereby preventing the sand and gravel from condensing into blocks on the outside of the crushing roller and not easily damaging the screening plate, so that the separator can effectively crush and sort the sand and gravel.

[0010] 2. The sand and gravel separator for civil engineering can drive the scraper to move by rotating the screw and adjust the distance between the scraper and the crushing roller. Then, after the scraper is worn, it can ensure that the scraper can effectively clean the crushing roller. The screw can be limited by tightening the limit nut to prevent the screw from rotating. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments made with reference to the following drawings:

[0012] Figure 1 This is a schematic diagram of the structure of the utility model;

[0013] Figure 2 It is a partial schematic diagram of the structure of the utility model;

[0014] Figure 3 It is a schematic diagram of the scraper of the utility model.

[0015] In the figure: 1. rotating shaft; 2. limiting block; 3. fixing block; 4. crushing roller; 5. spring; 6. fixing pin; 7. fixing sleeve; 8. connecting plate; 9. adjusting mechanism; 91. first guide rod; 92. second guide rod; 93. fixing plate; 94. screw rod; 10. scraper; 11. limiting nut; 12. chamfer. DETAILED DESCRIPTION

[0016] The present application will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are intended only to illustrate the relevant utility model and are not intended to limit the utility model. It should also be noted that, for ease of description, only the portions relevant to the utility model are shown in the accompanying drawings.

[0017] The drawings in the embodiments of the present invention: different types of section lines in the drawings are not marked according to national standards, nor do they impose any requirements on the materials of the components. Instead, they are used to distinguish the cross-sectional views of the components in the drawings.

[0018] See also Figure 1-3A sand and gravel separator for civil engineering comprises a rotating shaft 1 rotatably connected to the inside of a box body, a limit block 2, a fixed block 3, a crushing roller 4 and a spring 5 arranged on the outside of the rotating shaft 1, and a fixing pin 6 sleeved on the outside of the rotating shaft 1 and located between the limit block 2 and the fixed block 3. The outside of the rotating shaft 1 is fixedly sleeved with a fixing sleeve 7 located above the limit block 2 through the fixing pin 6. The limit block 2 can limit and support the fixing sleeve 7 while facilitating the disassembly and assembly of the fixing pin 6, and the limit of the fixing sleeve 7 can be released by removing the fixing pin 6, so as to facilitate the disassembly and assembly of the fixing sleeve 7. The outside of the fixing sleeve 7 is provided with connecting plates 8 symmetrically distributed above the crushing roller 4, and an adjusting mechanism 9 is installed inside the connecting plate 8. A scraper 10 located above the crushing roller 4 is provided at the bottom of the adjusting mechanism 9.

[0019] Among them, the adjustment mechanism 9 includes a first guide rod 91 and a second guide rod 92 which are movably sleeved inside the connecting plate 8 and arranged on the top of the scraper 10. The first guide rod 91 and the second guide rod 92 extend out of the top end of the connecting plate 8 and are fixedly sleeved with a fixing plate 93. The internal thread of the fixing plate 93 is sleeved with a screw rod 94 whose bottom end is rotatably connected to the inside of the connecting plate 8. By rotating the screw rod 94, the fixing plate 93 can be driven to move along the axial direction of the first guide rod 91 and the second guide rod 92, and at the same time, the distance between the scraper 10 and the crushing roller 4 can be adjusted, so that the scraper 10 can effectively clean the sand and gravel adhering to the outside of the crushing roller 4.

[0020] The outer thread of the screw rod 94 is sleeved with a limiting nut 11 located above the fixing plate 93. The limiting nut 11 can limit and fix the screw rod 94 while preventing the scraper 10 from moving after the height is adjusted.

[0021] Among them, chamfers 12 are provided on both sides of the bottom of the scraper 10. The chamfers 12 can reduce the contact area between the sand and the scraper 10 while increasing the shear force, so that the sand and gravel adhering to the outside of the crushing roller 4 can be easily cleaned by the scraper 10. In addition, chamfers 12 are provided on both sides of the bottom of the scraper 10, so that the scraper 10 can also effectively clean the crushing roller 4 during the reverse rotation of the crushing roller 4.

[0022] When the sorting machine is working, the rotation of the rotating shaft 1 drives the crushing roller 4 to crush the sand and gravel. In this process, the scraper 10 is used to clean the sand and gravel adhering to the outside of the crushing roller 4, and the cleaned sand and gravel fall on the sorting plate and then continue to be crushed by the crushing roller 4. After the sorting machine has been used for a period of time, the door panel is disassembled, and the limit nut 11 is loosened with a wrench. The distance between the scraper 10 and the crushing roller 4 is adjusted while the screw rod 94 is rotated with a wrench. After the height adjustment of the scraper 10 is completed, the limit nut 11 is tightened, and then the door panel is installed. The content not described in detail in this description belongs to the existing technology known to professional and technical personnel in this field.

[0023] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0024] The above description is merely a preferred embodiment of the present application and an illustration of the technical principles employed. Those skilled in the art should understand that the scope of the utility model disclosed in this application is not limited to the technical solutions formed by the specific combination of the above-mentioned technical features, but also encompasses other technical solutions formed by any combination of the above-mentioned technical features or their equivalents without departing from the concept of the utility model. For example, a technical solution formed by replacing the above-mentioned features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A sand and gravel separator for civil engineering, comprising a rotating shaft (1) rotatably connected to the interior of a housing, a limit block (2) arranged outside the rotating shaft (1), a fixed block (3), a crushing roller (4) and a spring (5), and a fixing pin (6) sleeved outside the rotating shaft (1) and located between the limit block (2) and the fixed block (3), characterized in that: The outer side of the rotating shaft (1) is fixedly sleeved with a fixing sleeve (7) located above the limit block (2) via a fixing pin (6); the outer side of the fixing sleeve (7) is provided with a connecting plate (8) symmetrically distributed above the crushing roller (4); an adjusting mechanism (9) is installed inside the connecting plate (8); and a scraper (10) located above the crushing roller (4) is provided at the bottom of the adjusting mechanism (9).

2. A sand and gravel separator for civil engineering according to claim 1, characterized in that: The adjusting mechanism (9) comprises a first guide rod (91) and a second guide rod (92) which are movably sleeved inside the connecting plate (8) and arranged on the top of the scraper (10); the first guide rod (91) and the second guide rod (92) extend out of the top end of the connecting plate (8) and are fixedly sleeved with a fixing plate (93); the fixing plate (93) is internally threadedly sleeved with a screw rod (94) whose bottom end is rotatably connected to the inside of the connecting plate (8).

3. A sand and gravel separator for civil engineering according to claim 2, characterized in that: The outer side of the screw rod (94) is threadedly sleeved with a limiting nut (11) located above the fixing plate (93).

4. A sand and gravel separator for civil engineering according to claim 1, characterized in that: Both sides of the bottom of the scraper (10) are provided with chamfers (12).

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