Gravel screening equipment for building engineering construction
By adopting a linkage structure of rotating rod and toggle rod in the sand and gravel screening equipment, combining the twist rod and twist groove, the screening mesh blockage caused by sand and gravel accumulation is solved, the screening efficiency and equipment stability are improved, and manual dialing is reduced dynamic demand.
Patent Information
- Application Number
- CN202420876379.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-25
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-04-25
AI Technical Summary
During the screening process, existing sand and gravel screening equipment will block the screening mesh due to sand and gravel accumulation, which will affect the screening efficiency and require manual adjustment to increase the workload.
Design a sand and gravel screening equipment for construction projects. By pushing the reciprocating displacement of the rotating rod, it drives the back and forth displacement of the toggle rod, combined with the twist rod and twist groove structure, it realizes uniform tick and dispersion of the sand and gravel on the screen, reducing the screening shell The vibration amplitude of the body reduces the use of electric components.
It improves the efficiency of sand and gravel screening, reduces the workload of staff, realizes uniform distribution and efficient screening of sand and gravel on the screen, and reduces the risk of blockage of screening after crushing.
Smart Images
Figure CN222174874U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sand and gravel screening, and more specifically, to a sand and gravel screening device for construction engineering construction. Background Art
[0002] Construction often refers to production activities during the implementation phase of engineering construction. Sand and gravel are commonly used raw materials at construction sites. Sand and gravel screening machines are generally used to screen sand and gravel at construction sites.
[0003] At present, most of the existing sand and gravel screening uses linear screening machines. By pouring the sand and gravel onto the linear screening machine, the vibration motor on the linear screening machine is started, and the sand and gravel will be screened under the action of vibration.
[0004] However, the existing screening equipment has the following problems in the process of sand and gravel screening: in the existing process of sand and gravel screening, sand and gravel are generally transported or dumped onto the screen through an elevator or an auger conveyor bucket. Since the sand and gravel fall straight down onto the screen, it is easy for too much sand and gravel to accumulate on the screen. Therefore, when the screen is screening sand and gravel, the sand pile becomes larger and larger, which affects the vibration screen's ability to shake off the piled sand and gravel. If these piles of sand and gravel are not broken up in time, the screening efficiency of the crushed ore will be affected. When the problem of accumulation occurs on the screen, the ore on the screen needs to be manually moved to diffuse the distribution of the ore, thereby increasing the workload of the staff. Utility Model Content
[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a sand and gravel screening equipment for construction engineering construction, in which when the rotating rod is pushed to move back and forth, the rotating rod simultaneously drives the toggle rod to move back and forth, thereby toggle the sand and gravel poured on the screen, so that the construction sand and gravel can be spread on the screen more evenly, thereby improving the screening efficiency of the construction sand and gravel screening machine.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A sand and gravel screening equipment for construction engineering comprises a base frame, a screening shell is arranged on the base frame, a sliding rod is arranged on the front of the screening shell, one end of the sliding rod slides into the screening shell, one end of the sliding rod located in the screening shell is rotatably connected with a rotating rod, a plurality of toggle rods are fixedly installed on the outer surface of the rotating rod, a twisted rod is fixedly installed on the other end of the rotating rod, the other end of the twisted rod passes through the rear surface of the screening shell, a twisted groove matching the twisted rod is opened on the screening shell, and a control component is arranged on the sliding rod.
[0008] The utility model is further configured as follows: four dampers are installed between the four corners of the lower surface of the screening shell and the base frame, and a vibration motor is fixedly installed at the bottom of the screening shell.
[0009] The utility model is further configured as follows: a screen mesh arranged in an inclined manner is fixedly installed in the screening shell, a material dropping funnel is fixedly installed at the outlet of the screening shell, and the upper surface of the screen mesh is flush with the bottom wall of the material dropping funnel.
[0010] The utility model is further configured as follows: the control component includes a contact head, which is fixedly mounted on one end of the sliding rod located outside the screening shell, a return spring is fixedly connected between the contact head and the outer surface of the screening shell, and the return spring is movably sleeved on the outer surface of the sliding rod.
[0011] The utility model is further configured as follows: two connecting plates are fixedly installed on the front side of the screening shell, the two connecting plates are arranged horizontally and parallel, a rotating plate is rotatably connected between the two connecting plates, and the outer surface of the contact head facing away from the sliding rod contacts the upper side of the rotating plate.
[0012] The utility model is further configured as follows: the contact head is in a semi-spherical shape.
[0013] The utility model is further configured as follows: a support plate is fixedly installed on the front side of the base frame, a push block is fixedly installed on the upper side of the support plate, the push block is in a right-angle triangle shape, and the lower side of the rotating plate contacts and slides with the inclined surface of the push block.
[0014] The utility model is further configured as follows: the two connecting plates are both arranged on a side of the rotating plate away from the contact head.
[0015] The advantages of the utility model are:
[0016] First, when the utility model pushes the rotating rod to move back and forth, the rotating rod synchronously drives the toggle rod to move back and forth, so that the sand and gravel poured on the screen can be toggled, so that the construction sand and gravel can be spread more evenly on the screen, thereby improving the screening efficiency of the construction sand and gravel screening machine. At the same time, since a twisted groove adapted to the twisted rod is provided on the screening shell, when the rotating rod is displaced, the twisted rod will be displaced synchronously with the rotating rod, so that the twisted rod rotates under the action of the twisted groove, thereby driving the rotating rod to slide on the sliding rod. This method further improves the dispersion effect of the toggle rod on the sand and gravel on the screen.
[0017] Secondly, the utility model can combine the up and down movement of the screening shell through a simple linkage structure to achieve the purpose of controlling the back and forth displacement of the sliding rod, does not require additional electric components, has high stability, and also reduces the workload of the staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1This is a schematic diagram of the structure of a sand and gravel screening device for construction engineering of the utility model;
[0019] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0020] Figure 3 for Figure 1 Enlarged view of point B in the middle.
[0021] In the figure: 1. base frame; 2. screening shell; 3. damper; 4. vibration motor; 5. screen; 6. drop funnel; 7. sliding rod; 8. rotating rod; 9. toggle rod; 10. twist rod; 11. twist groove; 12. contact head; 13. reset spring; 14. support plate; 15. push block; 16. rotating plate; 17. connecting plate. DETAILED DESCRIPTION
[0022] See also Figure 1-3 , the utility model provides the following technical solutions:
[0023] Specifically, it refers to a sand and gravel screening equipment for construction engineering, including a base frame 1, a screening shell 2 is arranged on the base frame 1, four dampers 3 are installed between the four corners of the lower surface of the screening shell 2 and the base frame 1, a vibration motor 4 is fixedly installed at the bottom of the screening shell 2, a tilted screen 5 is fixedly installed in the screening shell 2, a blanking funnel 6 is fixedly installed at the outlet of the screening shell 2, and the upper surface of the screen 5 is flush with the bottom wall of the blanking funnel 6. When in use, by pouring sand and gravel directly onto the screen 5, the vibration motor 4 is started synchronously, so that the screening shell 2 on the base frame 1 is shaken, and the sand and gravel falling onto the screen 5 is screened under the shaking action. Since the screen 5 is tilted, the screened sand and gravel can be transported to the blanking funnel 6 along the screen 5 and finally discharged from the blanking funnel 6.
[0024] A sliding rod 7 is provided on the front of the screening shell 2, one end of the sliding rod 7 slides through the screening shell 2, one end of the sliding rod 7 located in the screening shell 2 is rotatably connected to a rotating rod 8, a plurality of toggle rods 9 are fixedly installed on the outer surface of the rotating rod 8, a twisted rod 10 is fixedly installed on the other end of the rotating rod 8, and the other end of the twisted rod 10 penetrates the rear surface of the screening shell 2, and a twisted groove 11 adapted to the twisted rod 10 is provided on the screening shell 2. When the sliding rod 7 pushes the rotating rod 8 to move back and forth, the rotating rod 8 synchronously drives the toggle rod 9 to move back and forth, so as to The sand and gravel poured on the screen 5 can be moved, so that the construction sand and gravel can be spread on the screen 5 more evenly, thereby improving the screening efficiency of the construction sand and gravel screening machine. At the same time, since a twisted groove 11 adapted to the twisted rod 10 is provided on the screening shell 2, when the rotating rod 8 is displaced, the twisted rod 10 will be displaced synchronously with the rotating rod 8, so that the twisted rod 10 rotates under the action of the twisted groove 11, thereby driving the rotating rod 8 to slide on the sliding rod 7. This method further improves the dispersion effect of the sand and gravel on the screen 5 by the moving rod 9.
[0025] A contact head 12 is fixedly connected to one end of the sliding rod 7 located outside the screening shell 2, and a return spring 13 is fixedly connected between the contact head 12 and the outer surface of the screening shell 2. The return spring 13 is movably sleeved on the outer surface of the sliding rod 7. When the return spring 13 is not squeezed, the return spring 13 will form a supporting effect on the contact head 12, so that the initial position of the contact head 12 is away from the side of the screening shell 2.
[0026] Two connecting plates 17 are fixedly installed on the front of the screening shell 2. The two connecting plates 17 are arranged horizontally and parallel. A rotating plate 16 is rotatably connected between the two connecting plates 17. The outer surface of the contact head 12 facing away from the sliding rod 7 contacts the upper side of the rotating plate 16. Therefore, when the rotating plate 16 rotates clockwise, the upper side of the rotating plate 16 will form a thrust on the contact head 12, thereby pushing the sliding rod 7 to move to one side inside the screening shell 2.
[0027] In the present solution, the contact head 12 is further made into a semi-spherical shape, which increases the smoothness of the outer surface of the contact head 12, reduces the friction between the two when the rotating plate 16 pushes the contact head 12 to move, and avoids the problem of excessive friction between the rotating plate 16 and the contact head 12 causing jamming, further ensuring the smoothness and stability when pushing the sliding rod 7 to move.
[0028] A support plate 14 is fixedly installed on the front of the base frame 1, and a push block 15 is fixedly installed on the upper side of the support plate 14. The push block 15 is in the shape of a right-angled triangle, and the lower side of the rotating plate 16 contacts the inclined surface of the push block 15 and slides. When the screening shell 2 shakes, the spacing between the screening shell 2 and the base frame 1 will change, so that the lower side of the rotating plate 16 will slide on the inclined surface of the push block 15. When the rotating plate 16 slides downward, the rotating plate 16 is squeezed by the push block 15, so that the rotating plate 16 rotates clockwise. The above simple structure can be combined with the up and down movement of the screening shell 2 to achieve the purpose of controlling the back and forth displacement of the sliding rod 7. No additional electric components are required, and it has high stability.
[0029] In the present solution, the two connecting plates 17 are further arranged on the side of the rotating plate 16 away from the contact head 12, so that the force arm on the side where the rotating plate 16 contacts the contact head 12 is longer, while the force arm on the side where the rotating plate 16 contacts the push block 15 is shorter. Therefore, according to the principle of lever, the push block 15 only needs to rise a short distance to control the rotating plate 16 to push the sliding rod 7 to move a longer distance, thereby avoiding the problem that the existing screening equipment has a small shaking amplitude, resulting in the sliding rod 7 being displaced too short a distance, thereby affecting the sand and gravel moving effect, and further ensuring the sand and gravel moving effect.
[0030] The working principle of the sand and gravel screening equipment for construction engineering provided by the utility model is as follows: the sand and gravel are directly poured onto the screen 5, and the vibration motor 4 is started synchronously, so that the screening shell 2 forms a shake on the base frame 1, and the sand and gravel falling onto the screen 5 is screened under the shaking action;
[0031] At the same time, the distance between the screening shell 2 and the base frame 1 changes, and the lower side of the rotating plate 16 will slide on the inclined surface of the pushing block 15. When the rotating plate 16 slides downward, the rotating plate 16 is squeezed by the pushing block 15, so that the rotating plate 16 rotates clockwise, and the upper side of the rotating plate 16 will form a thrust on the contact head 12, thereby pushing the sliding rod 7 to move to one side inside the screening shell 2. At the same time, the reset spring 13 is stressed and compressed. At the same time, when the twisted rod 10 is displaced synchronously with the rotating rod 8, the twisted rod 10 rotates under the action of the twisted groove 11, and the rotating rod 8 rotates synchronously.
Claims
1. A sand and gravel screening device for construction engineering, comprising a base frame (1), a screening housing (2) being arranged on the base frame (1), characterized in that: The front side of the screening housing (2) is provided with a sliding rod (7), one end of the sliding rod (7) slides through the screening housing (2), one end of the sliding rod (7) located in the screening housing (2) is rotatably connected to a rotating rod (8), a plurality of toggle rods (9) are fixedly mounted on the outer surface of the rotating rod (8), a twisted rod (10) is fixedly mounted on the other end of the rotating rod (8), the other end of the twisted rod (10) penetrates through the rear side surface of the screening housing (2), a twisted groove (11) adapted to the twisted rod (10) is provided on the screening housing (2), and a control component is provided on the sliding rod (7).
2. The sand and gravel screening equipment for construction engineering according to claim 1 is characterized in that: Four dampers (3) are installed between the four corners of the lower surface of the screening shell (2) and the base frame (1), and a vibration motor (4) is fixedly installed at the bottom of the screening shell (2).
3. The sand and gravel screening equipment for construction engineering according to claim 2 is characterized in that: A tilted screen (5) is fixedly installed in the screening housing (2), and a material dropping funnel (6) is fixedly installed at the outlet of the screening housing (2), and the upper surface of the screen (5) is flush with the bottom wall of the material dropping funnel (6).
4. The sand and gravel screening equipment for construction engineering according to claim 3 is characterized in that: The control component comprises a contact head (12), which is fixedly mounted on one end of a sliding rod (7) located outside the screening housing (2), and a return spring (13) is fixedly connected between the contact head (12) and the outer surface of the screening housing (2), and the return spring (13) is movably sleeved on the outer surface of the sliding rod (7).
5. The sand and gravel screening equipment for construction engineering according to claim 4 is characterized in that: Two connecting plates (17) are fixedly mounted on the front of the screening housing (2). The two connecting plates (17) are arranged horizontally and in parallel. A rotating plate (16) is rotatably connected between the two connecting plates (17). The outer surface of the contact head (12) facing away from the sliding rod (7) contacts the upper side of the rotating plate (16).
6. The sand and gravel screening equipment for construction engineering according to claim 5 is characterized by: The contact head (12) is in a semi-spherical shape.
7. The sand and gravel screening equipment for construction engineering according to claim 5 is characterized by: A support plate (14) is fixedly mounted on the front of the base frame (1), a push block (15) is fixedly mounted on the upper side of the support plate (14), the push block (15) is in the shape of a right-angled triangle, and the lower side of the rotating plate (16) contacts the inclined surface of the push block (15) and slides.
8. The sand and gravel screening equipment for construction engineering according to claim 7 is characterized by: The two connecting plates (17) are both arranged on a side of the rotating plate (16) away from the contact head (12).