Self-moving tail belt and roller self-locking device

Abstract

The utility model discloses a kind of self-moving tail press belt and roller self-locking device, it is related to mining equipment field, including two vertical plate, two the vertical plate between rotationally connected with roller, the roller is rotationally connected with two vertical plate by shaft, and one end shaft extends to vertical plate outside, the both sides of the shaft are equipped with arc brake board for moving to its middle part. By controlling electric push rod to move down, cancel the support of two linkage tilt arms by roof, under the push of spring one, support two arc brake boards to still move and be in contact with the surface friction of shaft, for the deceleration of shaft and roller, with the continuous contraction of electric push rod, hollow tube and movable rod are continuously moved down by roof and inserted into gap groove, reach locking effect, avoid the shaking condition of roller and press belt, realize the self-locking effect of press belt and roller after conveying stop, improve the stability of its surface material when self-moving tail moves.

Description

Technical Field

[0001] This utility model relates to the field of mining equipment technology, specifically to a self-moving tail belt pressing device and a self-locking device for idlers. Background Technology

[0002] Self-moving tail section is a mobile device used in conjunction with belt conveyors and transfer machines in fully mechanized mining and tunneling faces of coal mines. It is mainly used for adjusting belt deviation, raising the belt, correcting the direction of transfer machine movement, and moving forward on its own to ensure smooth transfer in the tunneling face. During the transportation of raw coal in the roadway, the self-moving tail section is initially the longest, and gradually shortens the belt conveyor as the coal mining face advances.

[0003] During the movement of the self-propelled tail section equipment, the coal mine is located on the pressure belt. Under the influence of the mine roadway and the inertia of movement, the pressure belt and idler rollers are prone to shaking or rotation, which may cause the conveyed coal to fall off. Therefore, it is necessary to lock the idler rollers during the movement of the self-propelled tail section equipment. Utility Model Content

[0004] The purpose of this utility model is to provide a self-moving tail belt pressing device and a self-locking device for idler rollers 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 a self-locking device for a self-moving machine tail pressure belt and idler roller, comprising two upright plates, with an idler roller rotatably connected between the two upright plates. The idler roller is rotatably connected to the two upright plates via a shaft, with one end of the shaft extending to the outside of the upright plate. Both sides of the shaft are provided with arc-shaped brake plates for moving toward the center. The side wall of the upright plate is provided with a support structure for simultaneously driving the two arc-shaped brake plates away from each other. An extension plate is fixedly connected to the upper end of the upright plate.

[0007] The supporting structure includes an electric push rod fixedly installed on the side wall of the upright plate. The extension plate is provided with a linkage structure connected to two arc-shaped brake plates. The movable end of the electric push rod is fixedly connected to a top plate adapted to the linkage structure. The lower end of the top plate is provided with a limiting structure for fixing the shaft.

[0008] Preferably, two sliding rods are fixedly connected to the arc-shaped brake plate, and two sliding sleeves fitted onto the side wall of the upright plate are fixedly connected to the sliding rods. A spring is connected between the arc-shaped brake plate and the sliding sleeves, and the spring is fitted onto the outside of the sliding rod.

[0009] Preferably, the linkage structure includes two linkage tilting arms arranged symmetrically in an inverted V shape, and the upper ends of the two linkage tilting arms are rotatably connected to the extension plate. The lower ends of the two linkage tilting arms are provided with movable grooves, and the side walls of the two arc-shaped brake plates are fixedly connected with convex shafts that fit into the movable grooves.

[0010] Preferably, rollers are rotatably connected to both sides of the top plate, and the two rollers are respectively adapted to abut against the inner sides of the two linkage tilting arms.

[0011] Preferably, the limiting structure includes an elastic telescopic rod fixedly connected to the lower end of the top plate, and the shaft has several notches and slots that are adapted to engage with the movable end of the elastic telescopic rod.

[0012] Preferably, the notches are evenly divided around the axis of the shaft.

[0013] Preferably, the elastic telescopic rod includes a hollow tube fixedly connected to the bottom surface of the top plate, a movable rod slidably connected in the hollow tube, and the movable rod is properly matched with the notch groove, and a spring is connected between the movable rod and the inner bottom of the hollow tube.

[0014] Preferably, two L-shaped rods are fixedly connected to the side wall of the upright plate, and fixing sleeves that fit onto the vertical part of the L-shaped rods are fixedly connected to both sides of the hollow tube.

[0015] Preferably, a base support frame is fixedly connected to the lower end of both upright plates.

[0016] Preferably, friction pads are fixedly connected to the inner arc surfaces of both arc-shaped brake plates.

[0017] The beneficial effects are:

[0018] By controlling the electric push rod to move downward, the top plate's support for the two linked tilting arms is canceled. Under the push of spring one, the two arc-shaped brake plates move towards the still rotating shaft and rub against its surface, slowing down the shaft and idler roller. As the electric push rod continues to retract, the hollow tube and movable rod are driven by the top plate to move downward and insert into the notch slot, achieving a locking effect and preventing the idler roller and pressure belt from shaking. This achieves a self-locking effect between the pressure belt and the idler roller after the conveyor stops, improving the stability of the material on the surface when the self-moving machine tail moves. 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 This is a perspective view of the present invention;

[0021] Figure 2 This is a perspective view of the upright plate of this utility model;

[0022] Figure 3 This is a front view of the upright plate of this utility model;

[0023] Figure 4 This is a perspective view of the limiting structure of this utility model;

[0024] Figure 5 This is a split perspective view of the linkage tilting arm of this utility model;

[0025] Figure 6 This is a three-dimensional cross-sectional view of the hollow tube of this utility model.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Vertical plate; 2. Idler roller; 3. Shaft; 4. Arc-shaped brake plate; 401. Slide rod; 402. Slide sleeve; 403. Spring 1; 5. Electric push rod; 6. Limiting structure; 601. Hollow tube; 602. Movable rod; 603. Spring 2; 604. Notch groove; 7. Linkage structure; 701. Linkage tilting arm; 702. Movable groove; 703. Convex shaft; 8. Extension plate; 9. Top plate; 10. Roller; 11. L-shaped rod; 12. Fixed sleeve; 13. Base support frame. Detailed Implementation

[0028] 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.

[0029] See Figures 1-6 As shown, this utility model provides a self-moving tail pressing belt and idler roller self-locking device, including two upright plates 1, with an idler roller 2 rotatably connected between the two upright plates 1. The idler roller 2 is rotatably connected to the two upright plates 1 through a shaft 3, and one end of the shaft 3 extends to the outside of the upright plate 1. Both sides of the shaft 3 are provided with arc-shaped brake plates 4 for moving towards the center. The side wall of the upright plate 1 is provided with a support structure for simultaneously driving the two arc-shaped brake plates 4 away from each other. An extension plate 8 is fixedly connected to the upper end of the upright plate 1, and a bottom support frame 13 is fixedly connected to the lower end of both upright plates 1.

[0030] The supporting structure includes an electric push rod 5 fixedly installed on the side wall of the upright plate 1. The extension plate 8 is provided with a linkage structure 7 connected to two arc-shaped brake plates 4. The movable end of the electric push rod 5 is fixedly connected to a top plate 9 adapted to the linkage structure 7. The lower end of the top plate 9 is provided with a limiting structure 6 for fixing the shaft rod 3.

[0031] Reference Figure 5 As shown, two sliding rods 401 are fixedly connected to the arc-shaped brake plate 4, and two sliding sleeves 402 that are fitted onto the sliding rods 401 are fixedly connected to the side wall of the upright plate 1. A spring 403 is connected between the arc-shaped brake plate 4 and the sliding sleeves 402, and the spring 403 is fitted onto the outside of the sliding rods 401. By fitting the sliding rods 401 and the sliding sleeves 402, the arc-shaped brake plate 4 can be made more stable when moving laterally. By using the spring 403, when the arc-shaped brake plate 4 is unrestricted (by the linkage tilting arm 701 restricting the convex shaft 703), the arc-shaped brake plate 4 can be driven to rub against the surface of the shaft 3 under the elastic force of the spring 403, thereby decelerating the shaft 3.

[0032] Reference Figure 2 As shown in Figure 5, the linkage structure 7 includes two linkage tilting arms 701 arranged symmetrically in an inverted V shape. The upper ends of the two linkage tilting arms 701 are rotatably connected to the extension plate 8. The lower ends of the two linkage tilting arms 701 are provided with movable slots 702. The side walls of the two arc-shaped brake plates 4 are fixedly connected with convex shafts 703 that are fitted with the movable slots 702. When the electric push rod 5 extends, it drives the top plate 9 and the two rollers 10 to rise, supporting the two linkage tilting arms 701 to open outward at the same time. At this time, the movable slots 702 at the lower ends of the two linkage tilting arms 701 drive the convex shafts 703 and the arc-shaped brake plates 4 to translate, canceling the contact between the arc-shaped brake plates 4 and the surface of the shaft rod 3. At the same time, the movable rod 602 at the lower end of the elastic telescopic rod separates from the notch 604 on the shaft rod 3. At this time, the shaft rod 3 can rotate freely.

[0033] Reference Figure 4 As shown, rollers 10 are rotatably connected to both sides of the top plate 9, and the two rollers 10 are respectively matched with the inner side of the two linkage tilting arms 701. The design of the rollers 10 can prevent the top plate 9 from contacting the linkage tilting arms 701 and causing wear when it moves upward to support the two linkage tilting arms 701 to open, making the movement smoother.

[0034] Reference Figure 3As shown in Figure 6, the limiting structure 6 includes an elastic telescopic rod fixedly connected to the lower end of the top plate 9. The shaft 3 has several notches 604 that engage with the movable end of the elastic telescopic rod. These notches 604 are evenly distributed circumferentially around the axis of the shaft 3. The elastic telescopic rod includes a hollow tube 601 fixedly connected to the bottom surface of the top plate 9. A movable rod 602 is slidably connected within the hollow tube 601, and the movable rod 602 engages with the notches 604. A spring 603 connects the movable rod 602 to the inner bottom of the hollow tube 601. After the hollow tube 601 moves downward with the electric push rod 5, two situations occur: Situation 1: It is directly inserted into the notch 604, directly locking the shaft 3; Situation 2: The movable rod 602... The end abuts against the shaft 3, causing the second spring 603 to contract and store energy. Then, as long as the idler roller 2 rotates slightly, the movable rod 602 can be inserted into the notch 604 under the elastic force of the second spring 603, achieving a locking effect. The movable rod 602 avoids hard collision when the rigid insert rod contacts the rigid shaft 3, thus ensuring the integrity of the structure. It is worth mentioning that during the period when the movable rod 602 moves down after the arc brake plate 4 contacts the shaft 3, the shaft 3 will gradually stop (this can be achieved by adjusting the extension and retraction speed of the electric push rod 5, which is existing technology and can be easily implemented by those skilled in the art through simple programming, and will not be described in detail here), thus avoiding collision damage when the shaft 3 decelerates and contacts the movable rod 602.

[0035] Reference Figure 4 As shown, two L-shaped rods 11 are fixedly connected to the side wall of the upright plate 1, and fixed sleeves 12 fitted onto the vertical part of the L-shaped rods 11 are fixedly connected to both sides of the hollow tube 601. By sliding the fixed sleeves 12 with the L-shaped rods 11, the hollow tube 601 can be made more stable when moving up and down, and at the same time, the locking strength of the movable rod 602 on the shaft rod 3 and the roller 2 after it is inserted into the notch groove 604 is improved.

[0036] Specifically, friction pads are fixedly connected to the inner arc surfaces of the two arc-shaped brake plates 4. The friction pads can increase the friction force when the arc-shaped brake plates 4 contact the shaft 3, thereby improving the braking effect.

[0037] The working principle of this utility model:

[0038] When the self-moving tail needs to move, the electric push rod 5 is controlled to move downward. At this time, the two rollers 10 at the top of the top plate 9 gradually move downward inside the two linkage tilting arms 701. At this time, the inner side of the two linkage tilting arms 701 is not under force and swings downward under the push of the first spring 403. It supports the two arc-shaped brake plates 4 to move towards the still rotating shaft 3 and rub against its surface, which slows down the shaft 3 and the idler roller 2. As the electric push rod 5 continues to retract, the hollow tube 601 and the movable rod 602 are driven to move downward through the top plate 9 (at this time, the shaft 3 has stopped slowly under the clamping of the two arc-shaped brake plates 4). The lower end of the movable rod 602 abuts against the shaft 3 (or is directly inserted into the notch 604), which drives the second spring 603 to retract and store energy. Then, as long as the idler roller 2 rotates slightly, the movable rod 602 can be inserted into the notch 604 under the elastic force of the second spring 603 to achieve the locking effect and prevent the idler roller 2 and the pressure belt from shaking.

[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. A self-locking device for the tail belt pressing and idler rollers of a self-moving machine, characterized in that: It includes two upright plates (1), and a roller (2) is rotatably connected between the two upright plates (1). The roller (2) is rotatably connected to the two upright plates (1) through a shaft (3), and one end of the shaft (3) extends to the outside of the upright plate (1). Both sides of the shaft (3) are provided with arc-shaped brake plates (4) for moving towards the center. The side wall of the upright plate (1) is provided with a support structure for simultaneously driving the two arc-shaped brake plates (4) away from each other. An extension plate (8) is fixedly connected to the upper end of the upright plate (1). The supporting structure includes an electric push rod (5) fixedly installed on the side wall of the upright plate (1), and the extension plate (8) is provided with a linkage structure (7) connected to two arc-shaped brake plates (4). The movable end of the electric push rod (5) is fixedly connected to a top plate (9) adapted to the linkage structure (7), and the lower end of the top plate (9) is provided with a limiting structure (6) for fixing the shaft (3).

2. The self-locking device for the tail belt pressing and idler rollers of a self-moving machine according to claim 1, characterized in that: Two sliding rods (401) are fixedly connected to the arc-shaped brake plate (4), and two sliding sleeves (402) fitted with the sliding rods (401) are fixedly connected to the side wall of the upright plate (1). A spring (403) is connected between the arc-shaped brake plate (4) and the sliding sleeves (402), and the spring (403) is fitted on the outside of the sliding rods (401).

3. The self-locking device for the tail belt pressing and idler rollers of a self-moving machine according to claim 1, characterized in that: The linkage structure (7) includes two linkage tilting arms (701) arranged symmetrically in an inverted V shape. The upper ends of the two linkage tilting arms (701) are rotatably connected to the extension plate (8). The lower ends of the two linkage tilting arms (701) are provided with movable grooves (702). The side walls of the two arc-shaped brake plates (4) are fixedly connected with convex shafts (703) that are fitted with the movable grooves (702).

4. The self-locking device for the tail belt pressing and idler rollers of a self-moving machine according to claim 3, characterized in that: Both sides of the top plate (9) are rotatably connected to rollers (10), and the two rollers (10) are respectively adapted to abut against the inner side of the two linkage tilting arms (701).

5. The self-locking device for the tail belt pressing and idler rollers of a self-moving machine according to claim 1, characterized in that: The limiting structure (6) includes an elastic telescopic rod fixedly connected to the lower end of the top plate (9), and the shaft (3) is provided with several notches (604) that are adapted to engage with the movable end of the elastic telescopic rod.

6. The self-locking device for the tail belt pressing and idler rollers of a self-moving machine according to claim 5, characterized in that: Several of the notches (604) are evenly divided around the axis of the shaft (3).

7. The self-locking device for the tail belt pressing and idler rollers of a self-moving machine according to claim 5, characterized in that: The elastic telescopic rod includes a hollow tube (601) fixedly connected to the bottom surface of the top plate (9). A movable rod (602) is slidably connected in the hollow tube (601), and the movable rod (602) is properly engaged with the notch (604). A spring (603) is connected between the movable rod (602) and the inner bottom of the hollow tube (601).

8. The self-locking device for the tail belt pressing and idler rollers of a self-moving machine according to claim 7, characterized in that: Two L-shaped rods (11) are fixedly connected to the side wall of the upright plate (1), and fixed sleeves (12) fitted onto the vertical part of the L-shaped rods (11) are fixedly connected to both sides of the hollow tube (601).

9. The self-locking device for the tail belt pressing and idler rollers of a self-moving machine according to claim 1, characterized in that: The lower ends of both upright plates (1) are fixedly connected to a base support frame (13).

10. The self-locking device for the tail belt pressing and idler rollers of a self-moving machine according to claim 1, characterized in that: Friction pads are fixedly connected to the inner arc surfaces of the two arc-shaped brake plates (4).

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