Automatic braking device of automatic turnover sieve bend

Abstract

The utility model provides an automatic braking device of an automatic turnover sieve bend, which comprises a supporting seat, a driving shaft is rotatably arranged on the supporting seat, a mounting groove positioned at the side end of the driving shaft is arranged on the supporting seat, the opening direction of the mounting groove faces the driving shaft, and a two-way screw is rotatably arranged between two ends of the mounting groove. Mounting blocks in threaded connection with the two-way screw are arranged on the two sides of the mounting groove in a sliding mode, and braking clamping plates used for braking the driving shaft are arranged on the two mounting blocks correspondingly. According to the automatic braking device of the automatic turnover sieve bend, the basic requirement for automatic braking of the driving shaft for driving the sieve bend to turn over can be met, and the braking stability can be effectively guaranteed.

Description

Technical Field

[0001] This utility model belongs to the technical field of automatic braking devices, and specifically relates to an automatic braking device for an automatic rotating arc screen. Background Technology

[0002] Automatic tilting arc screens are mainly used for dewatering and demediuming of post-concentration products in wet coal preparation plants. During operation, the arc screen needs to be tilted and adjusted, and an automatic braking structure is required to brake the arc screen to prevent it from tilting automatically when it is not needed.

[0003] The existing automatic braking devices for automatic tilting arc screens can meet the basic requirements for automatic braking of arc screens. However, they usually use a translation drive structure to adjust the braking structure, so that the braking shaft is connected or separated from the pivot seat, thereby flexibly braking the pivot seat. However, they can usually only brake one side of the pivot seat, so there is a technical problem of poor braking stability.

[0004] For example, the utility model patent with announcement number CN205436292U discloses an automatic braking device for an automatic flipping arc screen. The technical solution of this patent document includes a support base, a brake cylinder installed on the support base, a brake shaft, and an intermediate connecting piece. The piston rod of the brake cylinder is connected to the brake shaft through the intermediate connecting piece. Since the flexible fixing of the pivot seat is achieved by inserting or separating the brake shaft from one side of the pivot seat, the braking stability of the brake shaft is insufficient and cannot fully meet people's usage needs. Utility Model Content

[0005] In view of this, this utility model addresses the shortcomings of the prior art by providing an automatic braking device for an automatic rotating arc screen, which not only meets the basic requirement of automatically braking the drive shaft that drives the arc screen to rotate, but also effectively ensures the stability of the braking.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: an automatic braking device for an automatic rotating arc screen, including a support base, a drive shaft rotatably mounted on the support base, an installation groove located at the side end of the drive shaft on the support base, the opening of the installation groove facing the drive shaft, a bidirectional screw rotatably mounted between the two ends of the installation groove, and mounting blocks slidably mounted on both sides of the installation groove and screwed to the bidirectional screw, and brake clamps for braking the drive shaft are respectively mounted on the two mounting blocks.

[0007] As a further improvement of this utility model, a brake pad is also provided on the inner wall of the brake clamp. The brake pad is made of rubber.

[0008] As a further improvement of this utility model, one side of the bidirectional screw extends to the outside of the mounting groove. A drive motor is installed on the mounting groove, and a drive gear is installed on the output shaft of the drive motor. A driven gear that meshes with the drive gear is installed on the bidirectional screw. Through the cooperation of the drive motor, the drive gear, and the driven gear, the bidirectional screw can be rotated.

[0009] As a further improvement of this utility model, the mounting block is provided with a connecting slot, and the rotating clamp is provided with a connecting plate that engages with the connecting slot. The connecting slot is provided with a connecting bolt for screwing the connecting plate, and the connecting plate is provided with a threaded connection hole for screwing the connecting bolt. Through the cooperation of the connecting slot, connecting plate, connecting bolt, and threaded connection hole, the mounting block and brake clamp can be flexibly fixed.

[0010] As a further improvement of this utility model, the support base is also provided with a support groove located between the drive shaft and the mounting groove, and the mounting block is also provided with a support slider that is slidably connected to the support groove. The vertical cross-section of both the support groove and the support slider is T-shaped. Through the sliding cooperation between the support slider and the support groove, the mounting block can move more stably relative to the mounting groove and the bidirectional screw, avoiding displacement relative to the mounting groove and preventing deformation and damage to the bidirectional screw.

[0011] As a further improvement of this utility model, a reinforcing plate is also provided between the mounting groove and the support base. The reinforcing plate enhances the connection between the mounting groove and the support base.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] Firstly, when the drive shaft needs to be braked, simply drive the bidirectional screw to rotate, causing the two mounting blocks to slide and move closer to each other in the mounting slot, so that the two brake plates clamp the two sides of the drive shaft, and brake the drive shaft simultaneously from both sides; then drive the two brake plates away from each other to release the brake on the drive shaft.

[0014] Secondly, the brake pads prevent the brake plates from directly contacting the drive shaft, thus avoiding mutual wear between the brake plates and the drive shaft. Attached Figure Description

[0015] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a structural schematic diagram of the support base, mounting groove, and reinforcing plate of this utility model;

[0018] Figure 3 This is a structural schematic diagram of the connecting slot, connecting plate, connecting bolt, supporting groove, and supporting slider of this utility model;

[0019] Figure 4 This is a schematic diagram of the brake clamp, brake pad, and connecting plate of this utility model.

[0020] In the diagram: 101, support base; 102, drive shaft; 103, mounting groove; 104, double-acting screw; 105, mounting block; 106, brake clamp; 107, brake pad; 108, mounting bearing; 109, drive motor; 110, drive gear; 111, driven gear; 112, mounting base; 201, connecting slot; 202, connecting plate; 203, connecting bolt; 204, support slide; 205, support slider; 206, reinforcing plate. Detailed Implementation

[0021] To better understand this utility model, the following embodiments further illustrate its content, but the scope of protection of this utility model is not limited to the embodiments described below. Numerous specific details are set forth in the following description to provide a more thorough understanding of this utility model. However, it will be apparent to those skilled in the art that this utility model can be practiced without one or more of these details.

[0022] like Figure 1 As shown, an automatic braking device for an automatic tilting arc screen includes a support base 101, a drive shaft 102 rotatably mounted on the support base 101, and a mounting groove 103 located at the side end of the drive shaft 102 via a mounting base 112 on the support base 101. The opening of the mounting groove 103 faces the drive shaft 102. A bidirectional screw 104 is rotatably mounted between the two ends of the mounting groove 103. Mounting bearings 108 are respectively mounted on the inner walls of both sides of the mounting groove 103. The outer ring of the mounting bearing 108 is connected to the side wall of the mounting groove 103, and the inner ring of the mounting bearing 108 is connected to the outer wall of the bidirectional screw 104.

[0023] Mounting blocks 105, which are screwed to bidirectional screws 104, are slidably provided on both sides of the mounting groove 103. Brake clamps 106 for braking the drive shaft 102 are respectively provided on the two mounting blocks 105.

[0024] When it is necessary to brake the drive shaft 102, simply drive the bidirectional screw 104 to rotate, which will drive the two mounting blocks 105 to slide in the mounting groove 103 and move closer to each other until the two brake plates 106 are clamped on both sides of the drive shaft 102, and brake the drive shaft 102 synchronously from both sides, thereby achieving stable braking of the drive shaft 102.

[0025] When it is necessary to release the brake on the drive shaft 102, simply rotate the drive bidirectional screw 104 in the opposite direction, which will drive the two mounting blocks 105 to slide in opposite directions and move away from each other in the mounting groove 103, thereby driving the two brake plates 106 to move away from each other, thus releasing the brake on the drive shaft 102.

[0026] According to another embodiment of the present invention, such as Figure 3 , 4 As shown, a brake pad 107 is also provided on the inner wall of the brake clamp 106, and the brake pad 107 is bonded and fixed to the brake clamp 106. The brake pad 107 is made of rubber. With the help of the brake pad 107, direct contact between the brake clamp 106 and the drive shaft 102 can be avoided, thus preventing mutual wear between the brake clamp 106 and the drive shaft 102.

[0027] According to another embodiment of the present invention, such as Figure 1 As shown, one side of the bidirectional screw 104 extends to the outside of the mounting groove 103. A drive motor 109 is mounted on the mounting groove 103, and a drive gear 110 is mounted on the output shaft of the drive motor 109. A driven gear 111 meshes with the drive gear 110 on the bidirectional screw 104. The worker only needs to start the drive motor 109 to drive the bidirectional screw 104 to rotate through the transmission between the drive gear 110 and the driven gear 111.

[0028] According to another embodiment of the present invention, such as Figure 3 , 4 As shown, the mounting block 105 is provided with a connecting slot 201, and the rotating clamp is provided with a connecting plate 202 that engages with the connecting slot 201. The connecting slot 201 is provided with a connecting bolt 203 for screwing the connecting plate 202, and the connecting plate 202 is provided with a threaded connection hole for screwing the connecting bolt 203. By simply engaging and fixing the connecting block with the connecting slot 201, the connecting bolt 203 can pass through the side wall of the connecting slot 201 and be screwed into the threaded connection hole, thereby achieving flexible fixing of the mounting block 105 and the brake clamp 106.

[0029] When it is necessary to replace the brake clamp plate 106 and brake pad plate 107, simply separate the connecting bolt 203 from the threaded connection hole, which will separate the connecting plate 202 from the connecting slot 201 and the brake clamp plate 106 from the mounting block 105. Then the brake clamp plate 106 and brake pad plate 107 can be replaced.

[0030] According to another embodiment of the present invention, such as Figure 1 , 3As shown, the support base 101 is also provided with a support groove 204 located between the drive shaft 102 and the mounting groove 103, and the mounting block 105 is also provided with a support slider 205 that is slidably connected to the support groove 204. The vertical cross-section of the support groove 204 and the support slider 205 are both T-shaped, which can effectively prevent the support slider 205 from shifting relative to the support slider 205, thereby providing more stable guidance and auxiliary support for the mounting block 105.

[0031] During the sliding operation of the mounting block 105 relative to the mounting groove 103 and the bidirectional screw 104, the support slider 205 can slide relative to the support groove 204, thereby making the mounting block 105 move more stably relative to the mounting groove 103 and the bidirectional screw 104, avoiding displacement relative to the mounting groove 103, preventing deformation and damage to the bidirectional screw 104, improving the stability of the device, and extending the service life of the device.

[0032] According to another embodiment of the present invention, such as Figure 2 As shown, a reinforcing plate 206 is also provided between the mounting groove 103 and the support base 101. The two ends of the reinforcing plate 206 are welded to the side wall of the mounting groove 103 and the top wall of the support base 101, respectively. The reinforcing plate 206 enhances the connection between the mounting groove 103 and the support base 101.

[0033] The above are preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. An automatic braking device for an automatic tilting arc screen, comprising a support base (101), wherein a drive shaft (102) is rotatably mounted on the support base (101), characterized in that: The support base (101) is provided with a mounting groove (103) located at the side end of the drive shaft (102). The opening direction of the mounting groove (103) faces the drive shaft (102). A bidirectional screw (104) is rotatably provided between the two ends of the mounting groove (103). Mounting blocks (105) that are screwed to the bidirectional screw (104) are slidably provided on both sides of the mounting groove (103). Brake clamps (106) for braking the drive shaft (102) are provided on the two mounting blocks (105).

2. The automatic braking device for the automatic tilting arc screen as described in claim 1, characterized in that: A brake pad (107) is also provided on the inner wall of the brake clamp (106).

3. The automatic braking device for the automatic tilting arc screen as described in claim 2, characterized in that: The brake pad (107) is made of rubber.

4. The automatic braking device for the automatic tilting arc screen as described in claim 3, characterized in that: One side of the bidirectional screw (104) extends to the outside of the mounting groove (103). A drive motor (109) is provided on the mounting groove (103). A drive gear (110) is provided on the output shaft of the drive motor (109). A driven gear (111) meshes with the drive gear (110) on the bidirectional screw (104).

5. The automatic braking device for the automatic tilting arc screen as described in claim 4, characterized in that: The mounting block (105) is provided with a connecting slot (201), and the rotating clamp is provided with a connecting plate (202) that engages with the connecting slot (201). The connecting slot (201) is provided with a connecting bolt (203) for screwing the connecting plate (202), and the connecting plate (202) is provided with a threaded connection hole for screwing the connecting bolt (203).

6. The automatic braking device for the automatic tilting arc screen as described in claim 5, characterized in that: The support base (101) is also provided with a support slide groove (204) located between the drive shaft (102) and the mounting groove (103), and the mounting block (105) is also provided with a support slider (205) that is slidably connected to the support slide groove (204). The vertical cross-section of the support slide groove (204) and the support slider (205) are both T-shaped.

7. The automatic braking device for the automatic tilting arc screen as described in claim 6, characterized in that: A reinforcing plate (206) is also provided between the mounting groove (103) and the support base (101).

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