A coal chute with adjustable guide angle
By introducing an inclination adjustment mechanism and a reinforced connecting rod design into the coal chute, the problem of the inability to adjust a fixed coal chute is solved, enabling flexible adjustment and stability of the guide channel angle, and improving the coal flow guiding efficiency and equipment service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANKUANG ENERGY GRP CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-07
AI Technical Summary
The existing coal chute has a fixed diversion channel structure, which cannot flexibly adjust the inclination angle. This makes it difficult to adapt to the needs of coal quantity fluctuations, coal quality differences and downstream equipment height adjustments in coal mine production, which may lead to problems such as excessively fast coal flow speed or accumulation and blockage.
Two sets of tilt adjustment mechanisms are adopted. Through the cooperation of self-locking blades and tension springs, the tilt angle of the guide channel can be flexibly adjusted. Combined with the reinforced connecting rod and the constriction design, the stability and synchronization of the angle adjustment are ensured, and the operation is convenient.
It enables flexible adjustment of the guide channel angle, avoids angle deviation caused by coal flow impact, improves adjustment stability and guide efficiency, reduces labor intensity, and enhances the structural strength and service life of the equipment.
Smart Images
Figure CN224466697U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coal mine transportation equipment, specifically to a coal chute with adjustable guide angle. Background Technology
[0002] In coal mining and coal preparation, the coal chute is a crucial channel connecting upstream conveying equipment (such as scraper conveyors and crushers) and downstream equipment (such as belt conveyors and screening machines), guiding coal to flow stably along a predetermined path. In existing technologies, the guide channels of coal chutes are mostly fixed structures, meaning their inclination angle cannot be adjusted after installation. However, the working conditions of coal transportation in coal mine production are complex and variable (such as fluctuations in coal quantity, differences in coal quality, and adjustments to the height of downstream equipment). Fixed guide channels are difficult to adapt to the needs of different scenarios: if the guide angle is too large, it may lead to excessively fast coal flow velocity, impacting downstream equipment; if the angle is too small, it may cause coal accumulation and blockage. Therefore, there is an urgent need for a coal chute with a flexibly adjustable guide angle and convenient operation. Utility Model Content
[0003] The technical problem to be solved by this utility model is to provide a coal chute with adjustable guide angle, which realizes flexible adjustment of the tilt angle of the guide chute through two sets of tilt angle adjustment mechanisms, and solves the problems of poor adaptability and inconvenient operation of existing fixed guide chutes.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] An adjustable-angle coal chute includes a vertically arranged chute body and an inclined chute bottom connected to the bottom of the chute body; an inlet is opened at the top of the chute body and an outlet is opened at the bottom of the chute bottom; it also includes two sets of tilt adjustment mechanisms rotatably installed on the left and right sides of the chute bottom and a guide chute connected to the front end of the two sets of tilt adjustment mechanisms and located at the outlet; the tilt adjustment mechanism includes a rotating shaft fixed to the left and right sides of the chute bottom, a side swing arm rotatably installed on the rotating shaft, a cutter holder fixed to the outside of the side swing arm, a self-locking blade rotatably installed on the cutter holder, and a tension spring connecting the top of the self-locking blade to the outside of the side swing arm; the tilt adjustment mechanism also includes a clearance groove opened on the side swing arm and located at the cutter holder, an annular adjustment groove opened on the left and right sides of the chute bottom and concentric with the rotating shaft, and multiple self-locking grooves opened along the edge of the annular adjustment groove and distributed in a circumferential array; the self-locking blade passes through the clearance groove and extends into the annular adjustment groove, and under the tension of the tension spring, the self-locking blade is always locked into the self-locking groove.
[0006] By adopting the above scheme, the self-locking blade is always locked into the self-locking grooves distributed circumferentially in the annular adjustment groove under the tension of the tension spring. After adjustment, no additional fixing is required, avoiding angle deviation caused by coal flow impact, and the stability is high. During operation, only two operators on the left and right need to operate two sets of tilt adjustment mechanisms to drive the guide channel to swing around the axis. While operating the handle, the operators press the blade handle upward to make the self-locking blade fall out of the self-locking groove. Then the blade can slide along the adjustment groove to realize the angle adjustment of the tilt angle of the guide channel to adapt to different coal quantities, coal quality and the height requirements of downstream equipment.
[0007] As a preferred embodiment of the adjustable tilt angle coal chute, it also includes a reinforcing link that connects the two tilt angle adjustment mechanisms simultaneously; the reinforcing link is located below the bottom of the chute and connects the left and right side swing arms; by synchronizing the movement of the two side swing arms through the reinforcing link, jamming or displacement caused by uneven force during unilateral adjustment is avoided.
[0008] As a preferred embodiment of a guide angle adjustable coal chute, the tilt adjustment mechanism also includes a knife handle connected to the knife holder and extending outward from the knife holder, which facilitates manual adjustment.
[0009] As a preferred embodiment of a guide angle adjustable coal chute, the tilt adjustment mechanism also includes a handle connected to the outside of the side swing arm and located next to the clearance chute. The operator can drive the side swing arm to swing around the axis by holding the handle to adjust the angle of the guide chute.
[0010] As a preferred embodiment of a coal chute with adjustable guide angle, the side swing arm is a V-shaped plate structure, which is rotatably connected to the rotating shaft at the top and extends downward to form an installation platform, thereby enhancing the rigidity of the side swing arm.
[0011] As a preferred embodiment of an adjustable guide angle coal chute, the opening of the guide channel converges from the left and right sides toward the middle to form a narrowing. The narrowing design can concentrate the coal flow, avoid dispersion, and improve the guiding efficiency.
[0012] As a preferred embodiment of an adjustable guide angle coal chute, the bottom and left and right sides of the guide chute are supported by reinforcing ribs. The reinforcing ribs can improve the structural strength of the guide chute and prevent deformation caused by coal flow impact or angle adjustment.
[0013] The beneficial effects of this utility model are:
[0014] 1. Flexible angle adjustment: During operation, only two operators need to operate two sets of tilt adjustment mechanisms to drive the guide channel to swing around the rotating shaft. While operating the handle, the operator presses the knife handle upward to make the self-locking blade disengage from the self-locking groove. Then the blade can slide along the adjustment groove to realize the angle adjustment of the guide channel to adapt to different coal quantities, coal quality and the height requirements of downstream equipment.
[0015] 2. Reliable self-locking positioning: Under the tension of the tension spring, the self-locking blade is always locked into the self-locking grooves distributed circumferentially in the annular adjustment groove. After adjustment, no additional fixing is required, avoiding angular deviation caused by coal flow impact, and ensuring high stability.
[0016] 3. Strong structural synchronization: The connecting rods are reinforced to connect the left and right swing arms, ensuring that the two swing arms swing synchronously, avoiding uneven force during unilateral adjustment, and improving adjustment accuracy and equipment life.
[0017] 4. High ease of operation: The design of the handle and knife handle conforms to ergonomics, allowing workers to adjust them without climbing or using tools, thus reducing labor intensity.
[0018] 5. High flow guiding efficiency: The constricted structure of the flow guiding channel concentrates the coal flow, and with the wear-resistant lining plate (if present), it can reduce the scouring and wear of the coal flow on the channel body, thereby avoiding dispersion and improving the flow guiding efficiency. Attached Figure Description
[0019] 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.
[0020] Figure 1 A three-dimensional structural diagram of a coal chute with adjustable guide angle;
[0021] Figure 2 Front view of a coal chute with adjustable guide angle;
[0022] Figure 3 This is a three-dimensional structural diagram of the bottom of the tank and the guide channel;
[0023] Figure 4 The bottom of the trough has a three-dimensional structure. Figure 1 ;
[0024] Figure 5 for Figure 4 A magnified view of a section at point A in the middle;
[0025] Figure 6 The bottom of the trough has a three-dimensional structure. Figure 2 ;
[0026] Figure 7 for Figure 6 A magnified view of a section at point B.
[0027] Reference numerals: 1-Tank body; 2-Tank bottom; 3-Inlet; 4-Outlet; 5-Inclination adjustment mechanism; 51-Rotating shaft; 52-Side swing arm; 53-Tool holder; 54-Self-locking blade; 55-Tension spring; 56-Allowing groove; 57-Annular adjustment groove; 58-Self-locking groove; 59-Tool handle; 510-Grip; 6-Guide groove; 7-Reinforcing connecting rod; 8-Reinforcing rib. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] like Figures 1 to 7 As shown, a guide angle adjustable coal chute is used to guide coal to flow stably along a predetermined path. Specifically, it includes a vertically arranged trough body 1 and a trough bottom 2 welded to the bottom of the trough body 1 and inclined. An inlet 3 is provided above the trough body 1, and an outlet 4 is provided below the trough bottom 2. It also includes two sets of tilt angle adjustment mechanisms 5 rotatably mounted on the left and right sides of the trough bottom 2, and a guide trough 6 welded to the front end of both sets of tilt angle adjustment mechanisms 5 and located at the outlet 4. The tilt angle adjustment mechanism 5 includes a rotating shaft 51 fixed to the left and right sides of the trough bottom 2, a side swing arm 52 rotatably mounted on the rotating shaft 51, and a guide trough 6 welded and fixed to the outside of the side swing arm 52. The tool holder 53, the self-locking blade 54 rotatably mounted on the tool holder 53, and the tension spring 55 connecting the top of the self-locking blade 54 to the outside of the side swing arm 52; the tilt adjustment mechanism 5 also includes a clearance groove 56 opened on the side swing arm 52 and located at the tool holder 53, an annular adjustment groove 57 opened on the left and right sides of the groove bottom 2 and concentric with the rotating shaft 51, and multiple self-locking grooves 58 opened along the edge of the annular adjustment groove 57 and distributed in a circumferential array; the self-locking blade 54 passes through the clearance groove 56 and extends into the annular adjustment groove 57, and under the tension of the tension spring 55, the self-locking blade 54 is always locked into the self-locking groove 58. The self-locking blade 54 is always locked into the self-locking grooves 58 distributed circumferentially in the annular adjustment groove 57 under the tension of the tension spring 55. After adjustment, no additional fixing is required, avoiding angle deviation caused by coal flow impact, and the stability is high. During operation, only two operators on the left and right need to operate the two sets of tilt adjustment mechanisms 5 to drive the guide trough 6 to swing around the rotating shaft 51. While operating the handle 510, the operator presses the blade handle 59 upward to make the blade fall out of the self-locking groove 58. Then the blade can slide along the adjustment groove to realize the angle adjustment of the tilt angle of the guide trough 6 to adapt to different coal quantities, coal quality and the height requirements of downstream equipment.
[0030] like Figures 4 to 7As shown, it also includes a reinforcing link 7 that connects the two sets of tilt adjustment mechanisms 5 simultaneously; the reinforcing link 7 is located below the bottom of the groove 2 and welds the left and right side swing arms 52 together; by synchronizing the movement of the two sets of side swing arms 52 through the reinforcing link 7, the jamming or offset caused by uneven force during unilateral adjustment is avoided.
[0031] Continue as Figures 4 to 7 As shown, the tilt adjustment mechanism 5 also includes a tool holder 59 connected to the tool holder 53 and extending outward from the tool holder 53, which facilitates manual adjustment.
[0032] Continue as Figures 4 to 7 As shown, the tilt adjustment mechanism 5 also includes a handle 510 welded to the outside of the side swing arm 52 and located next to the clearance groove 56. The operator can drive the side swing arm 52 to swing around the rotating shaft 51 by holding the handle 510, thereby adjusting the angle of the guide groove 6.
[0033] Continue as Figures 4 to 7 As shown, the side swing arm 52 is a V-shaped plate structure, which is rotatably connected to the rotating shaft 51 at the top and extends downward to form an installation platform, which can enhance the rigidity of the side swing arm 52.
[0034] like Figure 3 As shown, the opening of the guide channel 6 converges from the left and right sides toward the middle to form a narrowing. The narrowing design can concentrate the coal flow, avoid dispersion, and improve the guiding efficiency.
[0035] Continue as Figure 3 As shown, reinforcing ribs 8 are welded to the bottom and left and right sides of the guide channel 6. The reinforcing ribs 8 can improve the structural strength of the guide channel 6 and prevent deformation caused by coal flow impact or angle adjustment.
[0036] like Figures 1 to 2 As shown, the working principle of this utility model is as follows: In actual use, the operator can adjust the guide angle through the following steps. Before adjusting the guide angle, the coal chute should be suspended from conveying coal. Two operators manually hold the handles 510 on the outside of the side swing arm 52, and then press the knife handle 59 upward to disengage the self-locking blade 54 from the self-locking groove 58, which can drive the side swing arm 52 to swing around the rotating shaft 51. The side swing arm 52 drives the guide chute 6 to swing synchronously. At this time, the self-locking blade 54 slides in the annular adjustment groove 57 and disengages from the original self-locking groove 58. When the guide chute 6 is adjusted to the target angle, the handles 510 are released, and the self-locking blade 54 automatically engages the current position of the self-locking groove 58 under the tension of the tension spring 55, completing the angle locking and realizing the angle adjustment of the tilt angle of the guide chute 6 to adapt to different coal quantities, coal quality and the height requirements of downstream equipment.
[0037] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A coal chute with adjustable guide angle, comprising a vertically arranged chute body and a chute bottom connected to the bottom of the chute body and arranged at an inclination; an inlet is provided at the top of the chute body and an outlet is provided at the bottom of the chute bottom; Its features are: It also includes two sets of tilt adjustment mechanisms rotatably mounted on the left and right sides of the bottom of the tank, and a guide trough connected to the front end of the two sets of tilt adjustment mechanisms and located at the outlet. The tilt adjustment mechanism includes a rotating shaft fixed to the left and right sides of the bottom of the groove, a side swing arm rotatably mounted on the rotating shaft, a tool holder fixed to the outside of the side swing arm, a self-locking blade rotatably mounted on the tool holder, and a tension spring connecting the top of the self-locking blade to the outside of the side swing arm. The tilt adjustment mechanism also includes a clearance groove on the side swing arm and located at the tool holder, an annular adjustment groove on the left and right sides of the groove bottom and concentric with the rotating shaft, and multiple self-locking grooves arranged in a circumferential array along the edge of the annular adjustment groove. The self-locking blade extends through the clearance groove into the annular adjustment groove, and under the tension of the tension spring, the self-locking blade is always locked into the self-locking groove.
2. The adjustable guide angle coal chute according to claim 1, characterized in that: It also includes a reinforcing link that connects the two tilt adjustment mechanisms simultaneously; the reinforcing link is located below the bottom of the groove and connects the left and right side swing arms.
3. The adjustable guide angle coal chute according to claim 1, characterized in that: The tilt adjustment mechanism also includes a tool holder that is connected to the tool holder and extends outward from the tool holder.
4. The adjustable guide angle coal chute according to claim 1, characterized in that: The tilt adjustment mechanism also includes a handle connected to the outside of the side swing arm and located next to the clearance groove.
5. The adjustable guide angle coal chute according to claim 1, characterized in that: The side swing arm has a V-shaped plate structure.
6. The adjustable guide angle coal chute according to any one of claims 1-5, characterized in that: The opening of the guide channel narrows from the left and right sides toward the middle.
7. The adjustable guide angle coal chute according to claim 6, characterized in that: The flow channel is supported by reinforcing ribs at its bottom and on both sides.