Safety brake device for flywheel of press machine

Abstract

The utility model discloses a press machine flywheel safety brake device which comprises a rotating unit, and a brake unit comprises a supporting frame arranged on one side of a flywheel; the brake plate is arranged on the support frame in a guiding manner, and a brake block is arranged on one surface close to the flywheel; the spring is arranged between the braking vane and the supporting frame and used for providing elastic force in the direction close to the flywheel for the braking vane; the air cylinder is arranged on the supporting frame, the telescopic rod is connected with the braking vane and used for providing force far away from the flywheel direction for the braking vane, the force for keeping the braking effect of the braking unit is provided by the spring, and the air cylinder provides force enabling the braking vane to be far away from the flywheel so as to release braking. Under the elastic action of the spring, the brake unit can be kept in the brake state, so that safety is improved, the air cylinder does not participate in work when only the brake state needs to be kept, the working frequency and working time of the air cylinder are reduced, the fault rate of the air cylinder can be effectively reduced, the working life is prolonged, and the fault rate is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a press machine technical field especially relates to a press machine flywheel safety brake braking device. BACKGROUND

[0002] In the screw press, the driving motor drives the flywheel to rotate, and the flywheel drives the forging slider to move up and down, thereby performing the forging work, and in order to ensure the work safety, the flywheel will be configured with a brake device.

[0003] At present, the brake device mostly adopts a double-acting cylinder or a hydraulic cylinder to drive the brake disc to act along the radial direction of the flywheel, so that the brake disc is separated from or contacted with the flywheel, thereby achieving the effect of braking and releasing.

[0004] However, the above brake structure has the following problems: since the brake disc is bidirectionally driven by the double-acting cylinder, when the braking reciprocation is switched, the double-acting cylinder is prone to air leakage failure, and when the double-acting cylinder cannot drive the brake disc to contact with the flywheel, the braking failure will be caused, which has great safety hazards. INVENTION CONTENTS

[0005] The utility model aims at solving the above problems and provides a press machine flywheel safety brake braking device.

[0006] To achieve the above-mentioned purpose, the technical scheme of the utility model is as follows: a press machine flywheel safety brake braking device, comprising a brake unit, the brake unit comprising:

[0007] A support frame is arranged on one side of the flywheel;

[0008] A brake plate is arranged on the support frame in a guided manner, and a brake block is arranged on the side close to the flywheel;

[0009] A spring is arranged between the brake plate and the support frame, and is used for providing the brake plate with an elastic force in the direction close to the flywheel;

[0010] A cylinder is arranged on the support frame, a telescopic rod is connected with the brake plate, and the cylinder is used for providing the brake plate with a force in the direction away from the flywheel.

[0011] Further, the support frame comprises a flange plate, the cylinder is arranged on a first surface of the flange plate, a second surface of the flange plate opposite to the first surface is provided with a guide hole, a support pad is guided and matched in the guide hole, and the spring abuts on the support pad.

[0012] Further, a second adjusting screw is threadedly connected with the guide hole on the first surface in a corresponding manner, and the end portion of the second adjusting screw abuts and matches with the support pad.

[0013] Further, the spring is provided with two, the two springs are symmetrically arranged about the cylinder, and the guide hole is correspondingly provided with two.

[0014] Furthermore, the flange plate is provided with a positioning part, and when the brake plate abuts against the positioning part, the brake block separates from the flywheel.

[0015] Furthermore, the support frame also includes a base plate and two guide plates that are parallel and spaced apart on the base plate. The flange plate is detachably and fixedly connected to the two guide plates, and the two ends of the brake plate are guided and slidably engaged with the two guide plates.

[0016] Furthermore, a reinforcing plate is provided at the end of the guide plate away from the base plate, opposite to the base plate. A mounting bracket is provided on the side of the brake plate near the reinforcing plate. The reinforcing plate is provided with a clearance area adapted to the mounting bracket. The mounting bracket is used to install a first position sensor.

[0017] Furthermore, a connecting sleeve is provided on the brake plate, and the connecting sleeve is detachably and fixedly connected to the telescopic rod of the cylinder.

[0018] Furthermore, the side of the brake plate opposite to the brake block is provided with a positioning groove corresponding to the spring, and the end of the spring abuts against the bottom of the positioning groove.

[0019] Furthermore, the braking unit includes two units disposed opposite to each other on both sides of the flywheel.

[0020] Compared with the prior art, the safety brake device for a press flywheel disclosed in this utility model has the following advantages: the force for maintaining the braking effect of the brake unit is provided by a spring, and the force provided by the cylinder is used to move the brake plate away from the flywheel, thereby releasing the braking force. Even if the cylinder fails, the brake unit can still be kept in the braking state under the elastic force of the spring, thereby improving safety. Moreover, when it is only necessary to maintain the braking state, the cylinder can not participate in the work, reducing the working frequency and working time of the cylinder, thereby effectively reducing the failure rate of the cylinder, increasing its service life, and reducing the failure rate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of a safety brake device for a press flywheel according to the present invention. Figure One .

[0022] Figure 2 This is a schematic diagram of the structure of a safety brake device for a press flywheel according to the present invention. Figure Two .

[0023] Figure 3 This is a bottom view schematic diagram of the safety brake device for a press flywheel according to the present invention. Figure One .

[0024] Figure 4 This is a bottom view schematic diagram of the safety brake device for a press flywheel according to the present invention.Figure Two .

[0025] Figure 5 This is a schematic diagram of the hidden reinforcing plate and cylinder of a press flywheel safety brake device according to the present invention.

[0026] Figure 6 This is a schematic diagram showing the exploded structure of the flange plate, spring, and brake plate in a press flywheel safety brake device according to this utility model. Figure One .

[0027] Figure 7 for Figure 6 The diagram shows the exploded structure of a press flywheel safety brake device, comprising a flange plate, a spring, and a brake plate. Figure Two .

[0028] In the diagram: 1. Cylinder; 11. First sensor; 2. Support frame; 20. Base plate; 201. Guide plate; 21. Reinforcing plate; 210. Clearance area; 22. Flange plate; 220. Guide hole; 221. Through hole; 222. First threaded hole; 223. First adjusting screw; 2230. Positioning part; 224. First locking nut; 4. Brake block; 41. Brake plate; 410. Sliding plate; 411. Mounting bracket; 412. Connecting sleeve; 413. Positioning groove; 42. Spring; 43. Second adjusting screw; 430. Second locking nut; 45. Support pad. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0030] The purpose of this invention is to solve the above-mentioned problems by providing a safety brake device for a press flywheel and its energy storage control system.

[0031] refer to Figures 1-5 The technical solution of this utility model is: a safety brake device for a press flywheel, comprising a braking unit, the braking unit comprising:

[0032] Support frame 2 is located on one side of the flywheel;

[0033] Brake plate 41 is guided on support frame 2, and brake block 4 is provided on the side near flywheel;

[0034] Spring 42 is disposed between brake plate 41 and support frame 2, and is used to provide elastic force to brake plate 41 in the direction of approaching flywheel;

[0035] Cylinder 1 is mounted on support frame 2, and telescopic rod is connected to brake plate 41 to provide force to brake plate 41 away from the flywheel.

[0036] Specifically, the structure of the press flywheel safety brake device provided in this application includes a support frame 2 and a brake plate 41 guided on the support frame 2. A spring 42 and a cylinder 1 are arranged between the brake plate 41 and the support frame 2. In actual use, the support frame 2 is connected to the frame of the press and positioned on one side of the flywheel. The brake plate 41 is guided along the radial direction of the flywheel. Under the elastic force of the spring 42, the brake plate 41 is pushed closer to the flywheel. The brake block 4, which is set on the brake plate 41, abuts against the flywheel and engages with it through friction. Thus, the elastic force of the spring 42 provides a force to press the brake plate 41 against the flywheel. Cylinder 1 is mounted on support frame 2. The telescopic rod of cylinder 1 is connected to brake plate 41. Cylinder 1 can provide a driving force to brake plate 41 away from the flywheel. With this configuration, the force for the brake unit to maintain braking is provided by spring 42. Cylinder 1 provides the force to move brake plate 41 away from the flywheel, thereby releasing the brake. Even if cylinder 1 fails, the brake unit can still be kept in the braking state under the elastic force of spring 42, thereby improving safety. When it is only necessary to maintain the braking state, cylinder 1 can not participate in the work, reducing the working frequency and working time of cylinder 1, thereby effectively reducing the failure rate of cylinder 1, increasing its service life, and reducing the failure rate.

[0037] Furthermore, as a specific implementation method, refer to Figure 6 The support frame 2 includes a flange plate 22, the cylinder 1 is disposed on the first side of the flange plate 22, and a guide hole 220 is provided on the second side of the flange plate 22 opposite to the first side. A support pad 45 is guided and fitted in the guide hole 220, and the spring 42 abuts against the support pad 45.

[0038] In one specific implementation, the support frame 2 includes a flange plate 22. The flange plate 22 has a through hole 221 for the extension rod of the cylinder 1 to pass through. The cylinder 1 is detachably fixed on the first side of the flange plate 22. On the second side of the flange plate 22 opposite to the first side, a guide hole 220 is provided. The axis of the guide hole 220 is parallel to the extension direction of the cylinder 1. A support pad 45 is guided and arranged inside the guide hole 220. A friction plate is spaced apart from the second side. One end of the spring 42 abuts against the friction plate, and the other end abuts against the support pad 45. With this arrangement, an adjustment component for adjusting the position of the support pad 45 can be provided on the flange plate 22, thereby adjusting the compression of the spring 42 and adjusting the elastic force applied to the brake plate 41. On the one hand, it can avoid excessive clamping force leading to excessive wear of the brake block 4. On the other hand, it can compensate for the wear of the brake block 4 by periodically adjusting the position of the support pad 45, ensuring the effectiveness of the braking unit. This method has a simple structure and is easy to adjust.

[0039] Furthermore, as a specific implementation method, refer to Figure 3 , Figure 7 On the first surface, a second adjusting screw 43 is threadedly connected to the guide hole 220, and the end of the second adjusting screw 43 abuts against the support pad 45. Specifically, the guide hole 220 is a blind hole, and a second threaded hole coaxial with the guide hole 220 is provided on the first surface. The second adjusting screw 43 is threadedly connected to the second threaded hole, and the end of the second adjusting screw 43 abuts against the support pad 45. The position of the support pad 45 is adjusted by axially adjusting the second adjusting screw 43. A second locking nut 430 is threadedly connected to the second adjusting screw 43. After the position is properly adjusted, the position of the second adjusting screw is locked by locking the second adjusting nut 430, thereby locking the position of the support pad 45. This adjustment method is simple, reliable, low-cost, and easy to operate.

[0040] Furthermore, as a specific implementation method, refer to Figure 6 , Figure 7 Two springs 42 are provided, symmetrically arranged about the cylinder 1, and two guide holes 220 are provided accordingly. Specifically, in order to ensure the uniformity of the clamping force applied to the brake plate 41, two springs 42 are provided, symmetrically arranged about the axis of the cylinder 1, and two guide holes 220 are also provided accordingly.

[0041] Furthermore, as a specific implementation method, refer to Figure 6 The flange plate 22 is provided with a positioning part 2230. When the brake plate 41 abuts against the positioning part 2230, the brake block 4 separates from the flywheel.

[0042] Specifically, it can be understood that the brake plate 41 is driven by cylinder 1 to switch to the released state. In actual operation, it is in the released state as long as the brake pad 4 separates from the flywheel. However, due to the large stroke of cylinder 1, the brake plate 41 is driven to a position far from the flywheel. At this time, the travel distance of the brake plate 41 when switching from the released state to the braking state is long, and the switching speed is slow. In order to improve the switching speed, refer to... Figure 6 On the second surface of the flange plate 22, between the through hole 221 and the two guide holes 220, there is a first threaded hole 222. The axis of the first threaded hole 222 is parallel to the guide hole 220. The first threaded hole 222 is internally threaded to a first adjusting screw 223. The first adjusting screw 223 is threaded to a first locking nut 224. The positioning part 2230 is the end of the first adjusting screw 223. By setting the first adjusting screw 223, the extension length of the first adjusting screw 223 can be adjusted according to the initial braking position and the initial release position of the brake plate 41. When the cylinder 1 drives the brake plate 41 to move so that the brake plate 41 abuts against the end of the first adjusting rod, the brake block 4 can be separated from the flywheel. In this way, the braking stroke can be moderate and the switching speed can be improved.

[0043] Furthermore, as a specific implementation, the support frame 2 further includes a base plate 20 and two guide plates 201 arranged parallel to each other on the base plate 20. The flange plate 22 is detachably and fixedly connected to the two guide plates 201, and the two ends of the brake plate 41 are guided and slidably engaged with the two guide plates 201. Specifically, refer to... Figures 4-6 The support frame 2 includes a base plate 20, which is used to connect to the frame of the press. The bottom surface of the base plate 20 is provided with a long strip-shaped keyway, and a strip key is provided in the keyway. The length direction of the keyway on the base plate is the same as the extension and retraction direction of the cylinder 1. When the base plate 20 is fixed to the frame, a second keyway that cooperates with the strip key can also be provided on the frame. After the base plate 20 is fixed to the frame, the base plate 20 is positioned by the strip key to ensure that the extension and retraction direction of the cylinder 1 is set along the radial direction of the flywheel after the base plate 20 is set on the frame, and it can also enhance the stability and durability of the connection structure. Guide plates 201 are welded to the upper surface of the base plate 20. Flange plates 22 are detachably fixed to the ends of the two guide plates 201 by locking screws. Sliding plates 410 are provided at both ends of the brake plate 41. The two sliding plates 410 are guided and slidably engaged with the two guide plates 201. The above structure is compact and can adapt to the compact installation environment of the press. The two guide plates 201 guide the brake plate 41 and limit the brake plate 41, thereby improving the rigidity of the overall structure of the brake unit and achieving a better braking effect.

[0044] Furthermore, as a specific implementation, a reinforcing plate 21 is provided at the end of the guide plate 201 away from the base plate 20, opposite to the base plate 20. A mounting bracket 411 is provided on the side of the brake plate 41 near the reinforcing plate 21. The reinforcing plate 21 is provided with a clearance area 210 adapted to the mounting bracket 411. A first position sensor is provided on the mounting bracket 411.

[0045] For details, please refer to Figure 2 , Figure 4 , Figure 5 A mounting bracket 411 is provided on the brake plate 41. A first position sensor can be installed on the mounting bracket 411. The first sensor 11 is supported by the bracket 2. When the cylinder 1 drives the brake plate 41 to switch to the release state that contacts the positioning part 2230, the first position sensor can be triggered. At this time, it can be obtained that the braking device is in a non-braking state. The press can only work in the non-braking state. The first position sensor can be any one of the proximity switches, forming switches and displacement sensors commonly used in the art.

[0046] It should be noted that when the cylinder 1 configured in this application is working, it only needs to provide the driving force to pull the brake plate 41 to move closer to the flange plate 22. A single-acting cylinder 1 can be selected, or a double-acting cylinder 1 can be selected. However, when a double-acting cylinder 1 is selected, it only needs to connect the air inlet at the end close to the flange plate 22 to the air source. The return of the double-acting cylinder 1 is provided by the spring 42 of the brake unit.

[0047] As a specific implementation method, a solenoid valve is installed between the high-pressure air source and the cylinder 1, wherein the solenoid valve can be a two-position three-way solenoid valve commonly used in the art.

[0048] Furthermore, as a specific implementation method, refer to Figure 7 The brake plate 41 is provided with a connecting sleeve 412, which is detachably and fixedly connected to the telescopic rod of the cylinder 1. Specifically, the connecting sleeve 412 is fixed to the brake plate 41 by welding or threaded connection. The connecting sleeve 412 is provided to facilitate detachable connection with the telescopic rod of the cylinder 1. The connecting sleeve 412 may be provided with internal threads, and the telescopic rod of the cylinder 1 is threadedly connected to the connecting sleeve 412.

[0049] Furthermore, as a specific implementation method, refer to Figure 2 The cylinder 1 is equipped with a second position sensor. Specifically, by setting the second sensor, the position of the piston of the cylinder 1 can be detected. When the braking unit is in the braking state, the wear amount of the brake block 4 can be obtained by obtaining the piston position, and the state of the brake block 4 can be monitored. Specifically, the second sensor can be a displacement sensor set at the end of the cylinder 1 in the prior art.

[0050] Furthermore, as a specific implementation method, refer to Figure 7 The brake plate 41, on the side opposite to the brake block 4, has a positioning groove 413 corresponding to the spring 42, and the end of the spring 42 abuts against the bottom of the positioning groove 413. Specifically, by providing the positioning groove 413, the end of the spring 42 can extend into the positioning groove 413, limiting the spring 42 and improving stability.

[0051] Furthermore, as a preferred embodiment, the braking unit includes two units disposed opposite to each other on both sides of the flywheel. Specifically, by arranging two sets of braking units on both sides of the flywheel, the braking effect can be improved.

[0052] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A safety brake device for a press flywheel, characterized in that, Includes a braking unit, which includes: Support frame (2) is located on one side of the flywheel; Brake plate (41) is guided on support frame (2), and brake block (4) is provided on the side near flywheel. A spring (42) is disposed between the brake plate (41) and the support frame (2) to provide a spring force to the brake plate (41) in the direction of approaching the flywheel; The cylinder (1) is mounted on the support frame (2), and the telescopic rod is connected to the brake plate (41) to provide a force to the brake plate (41) away from the flywheel.

2. The safety brake device for a press flywheel according to claim 1, characterized in that, The support frame (2) includes a flange plate (22), the cylinder (1) is disposed on the first side of the flange plate (22), the second side of the flange plate (22) opposite to the first side is provided with a guide hole (220), a support pad (45) is guided and fitted in the guide hole (220), and the spring (42) abuts against the support pad (45).

3. The press flywheel safety brake device according to claim 2, characterized in that, On the first surface, a second adjusting screw (43) is threadedly connected to the guide hole (220), and the end of the second adjusting screw (43) abuts against the support pad (45).

4. The press flywheel safety brake device according to claim 3, characterized in that, Two springs (42) are provided, and the two springs (42) are symmetrically arranged about the cylinder (1). Two guide holes (220) are provided accordingly.

5. A safety brake device for a press flywheel according to claim 4, characterized in that, The flange plate (22) is provided with a positioning part (2230). When the brake plate (41) abuts against the positioning part (2230), the brake block (4) separates from the flywheel.

6. A safety brake device for a press flywheel according to claim 2, characterized in that, The support frame (2) also includes a base plate (20) and two guide plates (201) arranged parallel to each other on the base plate (20). The flange plate (22) is detachably and fixedly connected to the two guide plates (201). The two ends of the brake plate (41) are guided and slidably engaged with the two guide plates (201).

7. A safety brake device for a press flywheel according to claim 6, characterized in that, The guide plate (201) is located away from the bottom plate (20) and has a reinforcing plate (21) opposite to the bottom plate (20). The brake plate (41) is provided with a mounting bracket (411) on the side near the reinforcing plate (21). The reinforcing plate (21) is provided with a clearance area (210) adapted to the mounting bracket (411). The mounting bracket (411) is used to install a first position sensor.

8. A safety brake device for a press flywheel according to claim 2, characterized in that, A connecting sleeve (412) is provided on the brake plate (41), and the connecting sleeve (412) is detachably and fixedly connected to the telescopic rod of the cylinder (1).

9. A safety brake device for a press flywheel according to claim 8, characterized in that, The side of the brake plate (41) opposite to the brake block (4) is provided with a positioning groove (413) corresponding to the spring (42), and the end of the spring (42) abuts against the bottom of the positioning groove (413).

10. A safety brake device for a press flywheel according to claim 1, characterized in that, The braking unit includes two units that are positioned opposite each other on both sides of the flywheel.

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