Eccentric gravel multi-stage vibrating screen
By designing segmented mineral screening components and limiting structures, the problem of high screen replacement costs in existing eccentric vibrating screens has been solved. This enables rapid assembly and disassembly of screens, facilitating individual replacement based on crushing conditions and improving the flexibility and efficiency of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LUOYANG BAILIKE MINE MASCH CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-04-28
AI Technical Summary
The existing eccentric vibrating screens have a single-piece screen structure for each layer, resulting in high replacement costs and making it difficult to replace individual screens based on the actual crushing conditions.
An eccentric multi-stage vibrating screen for sand and gravel is designed. It adopts a segmented mineral screening component. The screening component can be quickly assembled and disassembled through the longitudinal sliding fit between the mounting base and the mounting groove and the fit between the limiting seat and the limiting rod of the end limiting component.
It reduces screen replacement costs, facilitates individual replacement based on actual crushing conditions, simplifies the installation and disassembly process of screening components, and improves the flexibility and efficiency of the equipment.
Smart Images
Figure CN224167986U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mineral screening equipment, specifically to an eccentric multi-stage vibrating screen for sand and gravel. Background Technology
[0002] The process of separating loose materials into different particle sizes through a sieve is called ore screening. In mineral processing plants, screening is often combined with crushing operations. Before the ore enters a certain crusher, a screening machine is needed to pre-separate the ore into those that already meet the particle size requirements and those that still need to be crushed. This can prevent the ore from being over-crushed and improve the production efficiency of the crusher.
[0003] In the existing technology, there are many types of screening machinery used in mineral processing plants, and vibrating screens are among the more commonly used equipment, such as eccentric vibrating screens. Specifically, in the design of eccentric vibrating screens, linear screens are one type. They are usually equipped with two eccentric vibrators with opposite rotation directions to achieve the purpose of linear movement of the ore. However, in existing eccentric vibrating screens, each layer of screen is usually a single piece of structure. When the screen needs to be replaced, the entire layer of screen often needs to be replaced, which is costly. Utility Model Content
[0004] The purpose of this invention is to provide an eccentric multi-stage vibrating screen for sand and gravel in order to solve the above problems, as detailed below.
[0005] To achieve the above objectives, the present invention provides the following technical solution:
[0006] This utility model provides an eccentric multi-stage vibrating screen for sand and gravel, including a vibrating screen body. The screening and sliding direction of the vibrating screen body is arranged longitudinally. The vibrating screen body is provided with several layers of elastic suspension brackets. Each layer of elastic suspension brackets has side seats fixed horizontally on both inner sides along the longitudinal direction. Multiple mineral screening components can be detached and combined between the side seats on both sides of the same layer. The multiple mineral screening components in each layer are arranged closely together to form a screen structure.
[0007] Each side seat has a detachable end limiting component at its front, which is used to restrict the movement of the corresponding layer's ore screening component.
[0008] Preferably, two eccentric vibrators with opposite rotation directions are installed on one side of the vibrating screen body to drive multiple mineral screening components in each layer to vibrate and screen the mineral material.
[0009] Preferably, the top surfaces of the side seats on both sides are provided with mounting grooves along the longitudinal direction, and the front of the mounting grooves is open. The mineral screening components include screen plates and mounting seats. The screen plates of each layer are arranged horizontally, and multiple screen plates of each layer are closely adjacent to each other in the longitudinal direction. The mounting seats are fixed on both sides of the bottom surface of the screen plates along the longitudinal direction, and the mounting seats slide into the corresponding mounting grooves on the same side in a longitudinal sliding fit.
[0010] Preferably, the longitudinal length of the mounting base is consistent with the longitudinal length of the sieve plate, and the front and rear end faces of the mounting base are flush with the corresponding front and rear end faces of the mounting base.
[0011] Preferably, the sieve plates are all rectangular perforated plates, and the front of both sides of the top surface of the sieve plate are equipped with hanging rings for easy hooking and applying force.
[0012] Preferably, the mounting grooves are either dovetail grooves or I-shaped grooves arranged longitudinally.
[0013] Preferably, each of the end limiting components includes a limiting hole and a limiting seat. The bottom of the mounting groove is vertically provided with the limiting hole in the portion extending beyond the front end face of the sieve plate. The front part of the mounting groove is slidably fitted with the limiting seat in the longitudinal direction. The top surface of each limiting seat is vertically provided with a mounting hole. Each mounting hole is a through hole in the vertical direction, and each mounting hole is vertically coaxially aligned with the corresponding limiting hole. Each mounting hole is coaxially fitted with a limiting rod in a vertical sliding fit, and the bottom end of each limiting rod is coaxially slidably fitted with the corresponding limiting hole. Each limiting rod has a handle coaxially fixed to its top end.
[0014] Preferably, the portion of the limiting rod located between the top surface of the corresponding handle and the limiting seat is coaxially fitted with a spring, and the two ends of the spring are respectively fixedly connected to the top surface of the corresponding handle and the limiting seat.
[0015] Preferably, the mounting grooves are all blind grooves in the longitudinal direction, and when multiple screen plates are closely adjacent to each other in the longitudinal direction, the rear end face of the limiting seat is in contact with the front end face of the mounting seat at the corresponding position.
[0016] Preferably, the front end face of the limiting seat is fixedly equipped with a gripping end for easy hand holding.
[0017] In the actual use of the eccentric multi-stage vibrating screen, multiple material screening components are arranged in each layer. These components slide side-by-side into the mounting groove via mounting seats, forming a screen structure for each layer. The segmented design of the screen structure facilitates individual replacement of the screening components based on actual crushing conditions, reducing replacement costs. Furthermore, the longitudinal sliding cooperation between the mounting seats on both sides of the screening components and the mounting groove allows for quick assembly within the vibrating screen body. This assembly method is simple and easy to implement, facilitating the screening of materials by arranging multiple components side-by-side within the vibrating screen body. The limiting seat of the end limiting component slides longitudinally with the mounting groove, and the limiting rod vertically engages with the limiting hole. This allows the limiting seat to fix the corresponding layer's mounting seat in the mounting groove, preventing it from moving. This enables the detachable assembly of the corresponding layer's mineral screening component within the mounting groove. The limiting and fixing method of the mineral screening component at the top of the mounting groove is simple and easy to implement, facilitating the sequential assembly of multiple mineral screening components in the corresponding layer's mounting groove for mineral processing. Since only pulling the limiting rod out of the limiting hole allows the limiting seat to slide longitudinally out of the mounting groove, multiple mineral screening components in the corresponding layer can be sequentially removed by sliding the mounting seat longitudinally along the mounting groove from the front end. The disassembly method of the mineral screening component at the top of the mounting groove is simple and easy to implement, facilitating the subsequent replacement of multiple mineral screening components after sequential removal from the corresponding layer's mounting groove.
[0018] The beneficial effects are as follows: 1. This utility model has multiple mineral screening components in each layer, and the multiple mineral screening components in each layer are arranged side by side by sliding into the mounting groove through the mounting base. In this way, the screen structure of the corresponding layer can be formed by the close proximity of the multiple mineral screening components. Since the screen structure adopts a segmented design, it is convenient to replace the mineral screening components at the corresponding positions individually according to the actual crushing situation, thereby reducing the replacement cost.
[0019] 2. The mineral screening components can be quickly assembled into the corresponding positions inside the vibrating screen body by the longitudinal sliding cooperation between the mounting seats on both sides of the mineral screening components and the mounting grooves of the corresponding layers. The assembly method of the mineral screening components in the vibrating screen body is simple and easy to realize, and it is convenient to put multiple mineral screening components side by side in the corresponding positions inside the vibrating screen body for mineral screening.
[0020] 3. By using the longitudinal sliding fit between the limiting seat of the end limiting component and the mounting groove, and the vertical fit between the limiting rod and the limiting hole, the limiting seat can be used to limit and fix the mounting seat of the corresponding layer in the mounting groove so that it cannot move. In this way, the mineral screening components of the corresponding layer can be detachably assembled in the mounting groove. The limiting and fixing method of the mineral screening components at the top of the mounting groove is simple and easy to implement, which makes it convenient to combine multiple mineral screening components in the mounting groove of the corresponding layer in sequence for mineral use.
[0021] 4. Once the limiting rod is pulled out of the limiting hole, the limiting seat can slide longitudinally out of the mounting groove. Then, the multiple mineral screening components of the corresponding layer can be removed one by one by sliding the mounting seat longitudinally along the mounting groove from the front end. The method of separating the mineral screening components at the top of the mounting groove is simple and easy to achieve, which facilitates the subsequent replacement of multiple mineral screening components after they are removed from the mounting groove of the corresponding layer. Attached Figure Description
[0022] 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.
[0023] Figure 1 This is an overall isometric schematic diagram of this utility model;
[0024] Figure 2 This is a utility model Figure 1 A schematic diagram of the cross-section;
[0025] Figure 3 This is a utility model Figure 2 Enlarged view of a portion at point A;
[0026] Figure 4 This is a utility model Figure 1 A schematic diagram of the cross-section;
[0027] Figure 5 This is a utility model Figure 4 A magnified view of section B;
[0028] Figure 6 This is a utility model Figure 1 Front view diagram;
[0029] Figure 7 This is a utility model Figure 1 A diagram showing the view from the right.
[0030] Figure 8 This is a utility model Figure 1A top-down view.
[0031] The annotations in the attached figures are explained as follows:
[0032] 1. Vibrating screen body; 101. Elastic suspension bracket; 102. Eccentric vibrator; 2. Mineral material screening assembly; 201. Hanging ring; 202. Screen plate; 203. Mounting base; 3. End limiting assembly; 301. Handle; 302. Spring; 303. Limiting seat; 304. Holding end; 305. Mounting hole; 306. Limiting rod; 307. Limiting hole; 4. Side seat; 401. Mounting groove. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0034] See Figures 1-8 As shown, this utility model provides an eccentric multi-stage vibrating screen for sand and gravel, including a vibrating screen body 1. The screening and sliding direction of the vibrating screen body 1 is arranged longitudinally. Several layers of elastic suspension brackets 101 are arranged inside the vibrating screen body 1. Each layer of elastic suspension bracket 101 has side seats 4 fixedly placed longitudinally on both inner sides. Multiple mineral screening components 2 can be detachably assembled between the side seats 4 on both sides of the same layer. The multiple mineral screening components 2 in each layer are arranged closely together to form a screen structure. Specifically, the top surface of the side seats 4 on both sides is provided with a mounting groove 401 longitudinally, and the front of the mounting groove 401 is open. Each mineral screening component 2 includes a screen plate 202 and a mounting base 203. The screen plates 202 of each layer are arranged horizontally, and the multiple screen plates 202 of each layer are arranged horizontally. The screen plate 202 is closely adjacent to each other in the longitudinal direction. Both sides of the bottom surface of the screen plate 202 are fixed with mounting seats 203 in the longitudinal direction. The mounting seats 203 slide into the corresponding mounting grooves 401 on the same side in a longitudinal sliding fit. The purpose of this setting is that, firstly, multiple mineral screening components 2 can form a screen structure of corresponding layers by means of close proximity. Since the screen structure adopts a segmented design, it is convenient to replace the mineral screening components 2 at the corresponding positions according to the actual crushing situation. At the same time, the mineral screening components 2 can be quickly assembled into the corresponding positions in the vibrating screen body 1 by means of longitudinal sliding fit between the mounting seats 203 on both sides of the mineral screening components 2 and the corresponding mounting grooves 401. The assembly method of the mineral screening components 2 in the vibrating screen body 1 is simple and easy to realize.
[0035] See Figures 1-5As shown, the front of each side seat 4 is detachably equipped with an end limiting component 3, which is used to restrict the movement of the corresponding layer of the ore screening component 2. Specifically, each end limiting component 3 includes a limiting hole 307 and a limiting seat 303. The bottom of the mounting groove 401, where it extends beyond the front end face of the front screen plate 202, has a vertically formed limiting hole 307. The front of the mounting groove 401 is longitudinally slidably fitted with the limiting seat 303. The top surface of the limiting seat 303 is... Vertical mounting holes 305 are provided, all of which are through holes in the vertical direction. Each mounting hole 305 is vertically coaxially aligned with a corresponding limiting hole 307. A limiting rod 306 is coaxially inserted through each mounting hole 305 via a vertical sliding fit. The bottom end of each limiting rod 306 is coaxially slidingly engaged with the corresponding limiting hole 307. A handle 301 is coaxially fixed to the top of each limiting rod 306. The limiting rod 306 is located at the top of the corresponding handle 301 and the limiting seat 303. The parts between the surfaces are all coaxially fitted with springs 302, and the two ends of the springs 302 are fixedly connected to the top surfaces of the corresponding handles 301 and limit seats 303, respectively. The purpose of this setting is that, through the longitudinal sliding fit between the limit seat 303 of the end limit component 3 and the mounting groove 401 and the vertical fit between the limit rod 306 and the limit hole 307, the limit seat 303 can be used to limit and block the mounting seat 203 of the corresponding layer in the mounting groove 401 and prevent it from moving. In this way, the mineral screening component 2 of the corresponding layer can be detachably assembled in the mounting groove 401. At the same time, by simply pulling the limit rod 306 out of the limit hole 307, the limit seat 303 can be longitudinally slid out of the mounting groove 401. Then, by sliding the mounting seat 203 longitudinally along the mounting groove 401 from the front end, the multiple mineral screening components 2 of the corresponding layer can be removed one by one. The assembly and disassembly of the mineral screening component 2 at the top of the mounting groove 401 is simple and easy to implement.
[0036] See Figures 1-8 As shown, the vibrating screen body 1, the ore screening component 2, and the end limiting component 3 have been optimized as follows: Specifically, two eccentric vibrators 102 with opposite rotation directions are installed on one side of the vibrating screen body 1, so as to drive the multiple ore screening components 2 of each layer to vibrate and screen the ore by means of the eccentric vibrators 102. Optionally, the longitudinal length dimension of the mounting base 203 is consistent with the longitudinal length dimension of the screen plate 202, and the front and rear end faces of the mounting base 203 are flush with the front and rear end faces of the corresponding mounting base 203. With this setting, after the screen plates 202 at the front and rear positions are closely adjacent, the mounting bases 203 at the front and rear positions can be prevented from sliding and moving randomly in the mounting groove 401 by contacting and pressing against each other. Furthermore, the sieve plates 202 are all rectangular perforated plates. The front of both sides of the top surface of the sieve plate 202 are equipped with hanging rings 201 for easy hooking and applying force. With this setting, the sieve plate 202 can be pulled forward and pushed backward by hooking the hanging rings 201 to apply force.
[0037] See Figures 1-8 As shown, the mounting grooves 401 are all dovetail-shaped grooves or I-shaped grooves arranged longitudinally, so that the mounting base 203 and the limiting base 303 can only slide longitudinally along the mounting groove 401 and cannot be dislodged from other directions. Optionally, the mounting grooves 401 are all blind grooves in the longitudinal direction, and when multiple screen plates 202 are closely adjacent to each other in the longitudinal direction, the rear end face of the limiting base 303 is in contact with the front end face of the corresponding mounting base 203. With this arrangement, when the limiting rod 306 and the limiting hole 307 are vertically coaxially aligned, the close proximity of the multiple screen plates 202 in the longitudinal direction and the contact between the rear end face of the limiting base 303 and the front end face of the corresponding mounting base 203 provide a clear indication. Alternatively, a gripping end 304 for easy hand holding is fixedly installed on the front end face of the limiting seat 303. This arrangement facilitates the pulling and pushing of the limiting seat 303 along the mounting groove 401 by applying force through the gripping end 304. At the same time, by setting the gripping end 304, it can also prevent the limiting seat 303 from being installed backwards when it slides into the mounting groove 401.
[0038] With the above structure, in the actual use of the vibrating screen body 1, multiple mineral screening components 2 are set in each layer, and the multiple mineral screening components 2 in each layer are arranged side by side by sliding into the mounting groove 401 through the mounting base 203. In this way, the screen structure of the corresponding layer can be formed by the close proximity of the multiple mineral screening components 2. Since the screen structure adopts a segmented design, it is convenient to replace the mineral screening components 2 in the corresponding position according to the actual crushing situation, which reduces the replacement cost. Since the mounting base 203 on both sides of the mineral screening component 2 slides longitudinally with the mounting groove 401 of the corresponding layer, the mineral screening component 2 can be quickly assembled in the corresponding position in the vibrating screen body 1. The assembly method of the mineral screening component 2 in the vibrating screen body 1 is simple and easy to implement, which makes it convenient to put multiple mineral screening components 2 in close proximity in the corresponding position in the vibrating screen body 1 for mineral screening. Furthermore, since the limiting seat 303 of the end limiting component 3 and the limiting seat 303 of the end limiting component 3 are arranged side by side with the end limiting component 3, the screen structure of the corresponding layer can be formed by the segmented design. The longitudinal sliding fit of the mounting groove 401 and the vertical fit of the limiting rod 306 and the limiting hole 307 allow the corresponding layer's mounting seat 203 to be fixed and immobilized within the mounting groove 401 by means of the limiting seat 303. This enables the detachable assembly of the corresponding layer's mineral screening component 2 within the mounting groove 401. The limiting and fixing method of the mineral screening component 2 at the top of the mounting groove 401 is simple and easy to implement, facilitating the sequential assembly of multiple mineral screening components 2 into the corresponding layer's mounting groove 401 for subsequent processing. When using the ore screening assembly, the limiting seat 303 can slide longitudinally out of the mounting groove 401 after the limiting rod 306 is pulled out of the limiting hole 307. Then, the multiple ore screening components 2 of the corresponding layer can be removed one by one by sliding the mounting seat 203 longitudinally out of the mounting groove 401. The method of separating the ore screening components 2 at the top of the mounting groove 401 is simple and easy to implement, which makes it convenient to replace the multiple ore screening components 2 after they are removed one by one from the mounting groove 401 of the corresponding layer.
[0039] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.
Claims
1. An eccentric multi-stage vibrating screen for sand and gravel, comprising a vibrating screen body (1), characterized in that: The screening and sliding direction of the vibrating screen body (1) is arranged longitudinally. The vibrating screen body (1) is provided with several layers of elastic suspension brackets (101). Each layer of elastic suspension brackets (101) has side seats (4) fixed on both inner sides longitudinally. Multiple mineral screening components (2) can be disassembled and combined between the side seats (4) on both sides of the same layer. The multiple mineral screening components (2) of each layer are arranged closely together to form a screen structure. Each side seat (4) has a detachable end limiting component (3) at its front, which is used to restrict the movement of the corresponding layer of the mineral screening component (2).
2. The eccentric multi-stage vibrating screen for sand and gravel according to claim 1, characterized in that: Two eccentric vibrators (102) with opposite rotation directions are mounted on one side of the vibrating screen body (1) to drive multiple mineral screening components (2) in each layer to vibrate and screen mineral materials by means of the eccentric vibrators (102).
3. The eccentric multi-stage vibrating screen for sand and gravel according to claim 2, characterized in that: The top surfaces of the side seats (4) on both sides are provided with mounting grooves (401) along the longitudinal direction, and the front of the mounting grooves (401) is open. The mineral screening components (2) include screen plates (202) and mounting seats (203). The screen plates (202) of each layer are arranged horizontally, and the multiple screen plates (202) of each layer are closely adjacent to each other in the longitudinal direction. The mounting seats (203) are fixed on both sides of the bottom surface of the screen plate (202) along the longitudinal direction, and the mounting seats (203) slide into the corresponding mounting grooves (401) on the same side in a longitudinal sliding fit.
4. The eccentric multi-stage vibrating screen for sand and gravel according to claim 3, characterized in that: The longitudinal length of the mounting base (203) is consistent with the longitudinal length of the sieve plate (202), and the front and rear end faces of the mounting base (203) are flush with the front and rear end faces of the corresponding mounting base (203).
5. The eccentric multi-stage vibrating screen for sand and gravel according to claim 4, characterized in that: The sieve plates (202) are all rectangular perforated plates, and the front of both sides of the top surface of the sieve plates (202) are equipped with hanging rings (201) for easy hooking and applying force.
6. An eccentric multi-stage vibrating screen for sand and gravel according to any one of claims 3-5, characterized in that: The mounting grooves (401) are all of the following: a dovetail groove or an I-shaped groove arranged longitudinally.
7. The eccentric multi-stage vibrating screen for sand and gravel according to claim 6, characterized in that: Each of the end limiting components (3) includes a limiting hole (307) and a limiting seat (303). The bottom of the mounting groove (401) is provided with the limiting hole (307) in a vertical direction in the part that extends beyond the front end face of the screen plate (202). The front part of the mounting groove (401) is slidably fitted with the limiting seat (303) in a longitudinal direction. The top surface of the limiting seat (303) is provided with a mounting hole (305) in a vertical direction. The mounting hole (305) is a through hole in the vertical direction. The mounting hole (305) is vertically coaxially aligned with the corresponding limiting hole (307). The mounting hole (305) is coaxially inserted with a limiting rod (306) in a vertical sliding fit. The bottom end of the limiting rod (306) is coaxially slidably fitted with the corresponding limiting hole (307). The top end of the limiting rod (306) is coaxially fixed with a handle (301).
8. The eccentric multi-stage vibrating screen for sand and gravel according to claim 7, characterized in that: The portion of the limiting rod (306) located between the top surfaces of the corresponding handle (301) and the limiting seat (303) is coaxially fitted with a spring (302), and the two ends of the spring (302) are fixedly connected to the top surfaces of the corresponding handle (301) and the limiting seat (303), respectively.
9. The eccentric multi-stage vibrating screen for sand and gravel according to claim 8, characterized in that: The mounting grooves (401) are all blind grooves in the longitudinal direction, and when multiple screen plates (202) are closely adjacent to each other in the longitudinal direction, the rear end face of the limiting seat (303) is in contact with the front end face of the mounting seat (203) at the corresponding position.
10. An eccentric multi-stage vibrating screen for sand and gravel according to claim 7, 8, or 9, characterized in that: Each of the limiting seats (303) has a gripping end (304) fixedly installed on its front end face for easy hand gripping.