Anti-skid restraining device suitable for rear winch roller of coke oven coal charging car

Abstract

The utility model belongs to the technical field of winches, and discloses an anti-skid restraining device suitable for a rear winch roller of a coke oven coal charging car. The support comprises a bottom plate and a vertical plate which is vertically arranged, the four corners of a movable plate are arranged in limiting sleeves in a penetrating mode through four limiting sliding rods respectively and are movably connected with the vertical plate, a permanent magnet restraining ring is arranged on the movable plate, two servo motors are installed on the vertical plate, and an output shaft of each servo motor is connected with a lead screw through a coupler. As a transmission mechanism of the movable plate, magnetic coupling adsorption is achieved by synchronously starting two servo motors and adjusting the distance between the permanent magnet restraint ring and the winding drum in a lead screw transmission mode, pre-tightening force is generated on the steel wire rope in the advancing and retracting states, and the anti-skid function of the winding drum steel wire rope is achieved. The utility model effectively replaces the original electromagnetic band-type brake device, ensures the smooth running track of the steel wire rope, improves the running stability of the rear winding device, reduces the equipment failure rate and maintenance time, and reduces the purchase cost of spare parts.

Description

Technical Field

[0001] The utility model belongs to the technical field of winches, and in particular relates to an anti-slip restraint device suitable for a rear winch drum of a coke oven coal loading car. Background Art

[0002] At present, the rear winch device of the 1# and 2# coal loading cars in the first phase of the coking plant is opened by the electromagnetic brake device during the coal loading operation, so that the rear baffle and the coal supporting plate move forward. At this time, the steel wire rope on the rear baffle rotates freely due to the inertia generated by the coal supporting plate moving forward, and then the steel wire rope loosens and slides on the large chain of the coal loading car, and it is very easy to get entangled in the large chain and cause winch equipment accidents. In addition, with the long-term use of the electromagnetic brake device, the brake pad inside it is worn, resulting in insufficient mechanical preload force, making the steel wire rope on the drum easy to loosen in the forward and retracted state, which in turn causes a series of winch equipment accidents. Therefore, this is not only not conducive to the stable operation of the entire coal loading and transportation system, but also increases the equipment failure rate and maintenance time, thereby further increasing the spare parts procurement cost.

[0003] In the production of coking plants, coal loading cars are important equipment in the coal coking process, and the rear winch plays a vital role. During the coal loading operation, the rear winch controls the coordinated movement of the rear baffle and the coal supporting plate through the electromagnetic brake device. After receiving the command, the electromagnetic brake device opens, allowing the rear baffle and the coal supporting plate to move forward synchronously. At this time, the wire rope connected to the rear baffle will cause the drum to rotate freely due to the inertia of the coal supporting plate. However, in the actual operation process, it brings the following series of problems. 1. Due to the inertia generated by the forward movement of the coal supporting plate, the wire rope rotates freely on the drum, which not only causes the wire rope to loosen, but is more likely to slide onto the large chain of the coal loading car under the action of inertia. Once the wire rope slides into the large chain, it may cause a winch equipment accident, which not only affects the efficiency of the coal loading operation, but also may cause serious damage to the equipment. 2. After long-term use, the brake pads inside the electromagnetic brake device will wear, resulting in insufficient mechanical preload. In this case, the wire rope on the drum is more likely to loosen during the process of advancing and retracting. This looseness not only aggravates the wear of the wire rope, but may also lead to an increase in the failure rate of the winch equipment. 3. Due to the existence of the above problems, the stability of the entire coal loading and transportation system is seriously affected. Frequent failures not only increase the maintenance time of the equipment, but also lead to an increase in the cost of purchasing spare parts. This not only affects the production efficiency of the coking plant, but may also have an adverse impact on the economic benefits of the enterprise.

[0004] In view of the problems and challenges of the existing technology, it is urgent to improve the technical equipment of the rear winch of the first phase of the coking plant coal loading car. Therefore, it is urgent to redesign and optimize the brake system of the drum to reduce the possibility of the wire rope slipping due to the free rotation of the drum, thereby improving the stability and efficiency of the entire coal loading and transportation system. Utility Model Content

[0005] Aiming at the problems existing in the electromagnetic brake device in the rear hoisting device of the coal charging car, according to the project transformation implementation process, the utility model provides an anti-skid restraint device suitable for the drum of the rear hoisting machine of the coke oven coal charging car.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an anti-skid restraint device suitable for the drum of the rear hoist of the coke oven coal loading car, comprising a bracket, the bracket comprising a bottom plate and a vertical plate vertically arranged thereon, a mounting waist hole is arranged on the bottom plate, for bolts to fix the bracket on the frame, an axis through hole is arranged on the vertical plate, for passing the rotating shaft of the hoist, four limit sleeves are respectively arranged on the vertical plates located around the axis through hole, the four corners of the movable plate are respectively passed through the limit sleeves by four limit sliding rods, and form a movable connection with the vertical plate, a permanent magnetic restraint ring is arranged on the movable plate, and two servo motors are installed on the vertical plate, the output shaft of each servo motor is connected to the lead screw through a coupling, and the two lead screws are respectively connected to the vertical plates, and the two servo motors are interlocked with the start and stop action of the hoist through the on-site DCS control system, so as to synchronously start and use the lead screw transmission method to adjust the spacing of the permanent magnetic restraint ring to the drum to realize magnetic coupling adsorption, thereby ensuring that the running trajectory of the wire rope is smooth and the safety distance with the chain is appropriate.

[0007] As a further supplement to the above technical solution, two U-shaped frames are fixed on the vertical plate, a screw bearing is arranged on the U-shaped frame, a limiting sleeve is arranged on the vertical plate, the screw is passed through the screw bearing and its end is inserted into the limiting sleeve.

[0008] As a further supplementary explanation of the above technical solution, an adjusting nut is provided at the end of each of the limit sliding rods for adjusting the moving stroke of the movable plate.

[0009] As a further explanation and limitation of the above technical solution, two supports are fixed on the vertical plate for mounting the servo motor, and the two supports are distributed on both sides of the center line of the shaft through hole and are located between the two limiting slide bars.

[0010] As a further supplement to the above technical solution, a bearing is provided at one end of the screw connected to the coupling, which cooperates with a limiting sleeve to ensure smooth rotation of the screw, and the bearing is installed on a support.

[0011] As a further supplement to the above technical solution, a shell is installed on each of the supports, and the shell covers the bearing and the coupling to protect the two from damage caused by external force impact.

[0012] As a further supplement to the above technical solution, a plurality of reinforcing ribs and two diagonal rods are arranged between the bottom plate and the vertical plate, the plurality of reinforcing ribs are evenly distributed between the two diagonal rods, and the two are arranged together to increase the stability of the support structure.

[0013] As a further explanation and limitation of the above technical solution, the permanent magnetic confinement ring is fixedly mounted on the movable plate by means of hexagon socket bolts to facilitate replacement due to wear.

[0014] Compared with the prior art, the utility model has the following advantages:

[0015] 1. The utility model uses the on-site DCS control system to form a chain control between the start and stop action of the winch and the two servo motors. By synchronously starting the two servo motors, the distance between the permanent magnetic constraint ring and the drum is adjusted by the screw transmission method to achieve magnetic coupling adsorption, and a pre-tightening force is generated for the steel wire rope in the forward and retracted states, so as to realize the anti-slip function of the drum steel wire rope. Therefore, the utility model effectively replaces the original electromagnetic brake device, ensures the smooth running track of the steel wire rope, and has an appropriate sensing distance with the chain safety distance, improves the operating stability of the rear winch device, reduces the equipment failure rate and maintenance time, and reduces the spare parts procurement cost.

[0016] 2. The utility model adopts four limit sliding rods which are passed through the limit sleeves to form a movable connection between the movable plate and the vertical plate; at the same time, two U-shaped frames and two limit shaft sleeves are fixed on the vertical plate, and a screw bearing is arranged on the U-shaped frame. The screw is passed through the screw bearing and one end of the screw is arranged in the bearing, and the other end is inserted in the limit shaft sleeve to form a screw transmission mechanism. The screw cooperates with the limit shaft sleeve through the bearing, which can ensure the smooth rotation of the screw and meet the requirements of the movement of the movable plate.

[0017] 3. According to the pre-tightening force requirement of the wire rope, the utility model is provided with an adjusting nut at the end of each limit slide rod, and the moving stroke of the movable plate can be adjusted by adjusting the adjusting nut to ensure that the pre-tightening force of the wire rope meets the production requirements.

[0018] 4. Aiming at the vulnerable situation of bearings and couplings in the transmission structure, the utility model has designed a separate shell covering protection to protect both from damage caused by external impact.

[0019] 5. Through on-site observation of the operation of the wire rope of the rear winch drum of the coal loading car and repeated optimization tests, the utility model has now been able to operate reliably and with practical effects. This device can be promoted and used throughout the company. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a three-dimensional diagram of the anti-slip restraint device in the utility model;

[0021] Figure 2 It is a structural diagram of the anti-slip restraint device in the utility model;

[0022] Figure 3 This is a structural diagram of the bracket in the embodiment of the utility model;

[0023] Figure 4 It is an assembly diagram of the screw drive in the embodiment of the utility model;

[0024] Figure 5 This is a reference diagram for the use of the anti-slip restraint device in the present utility model.

[0025] In the figure: the bracket is 1, the limit slide rod is 2, the movable plate is 3, the permanent magnetic restraint ring is 4, the screw is 5, the servo motor is 6, the U-shaped frame is 7, the screw bearing is 8, the limit sleeve is 9, the adjusting nut is 10, the limit sleeve is 11, the coupling is 12, the bearing is 13, the housing is 14, the reinforcing rib plate is 15, the inclined rod is 16, and the reel is 17.

[0026] The bracket includes: a bottom plate 101 , a vertical plate 102 , an axial through hole 103 , a support 104 , and a mounting waist hole 105 . DETAILED DESCRIPTION

[0027] In order to further illustrate the technical solution of the utility model, the following Figures 1 to 5 ,According to the on-site transformation implementation situation, we further illustrate the utility model through three embodiments. Embodiment 1

[0028] As attached Figures 1 to 4As shown, an anti-skid restraint device suitable for the drum of the rear hoist of a coke oven coal loading car comprises a bracket 1, wherein the bracket 1 comprises a bottom plate 101 and a vertical plate 102 vertically arranged thereon, a mounting waist hole 105 is arranged on the bottom plate 101, and is used to bolt the bracket 1 to be fixedly mounted on the frame, an axial through hole 103 is arranged on the vertical plate 102, and is used to pass the rotating shaft of the hoist, four limiting sleeves 11 are respectively arranged on the vertical plate 102 located around the axial through hole 103, four corners of the movable plate 3 are respectively passed through the limiting sleeves 11 by four limiting sliding rods 2, and are movably connected with the vertical plate 102, a permanent magnetic restraint ring 4 is arranged on the movable plate 3, two supports 104 are fixed on the vertical plate 102, and two The supports 104 are distributed on both sides of the center line of the shaft through hole 103 and are located between the two limiting slide bars 2, and servo motors 6 are respectively installed on the two supports 104. The output shaft of each servo motor 6 is connected to the screw 5 through a coupling 12. A bearing 13 is arranged at one end of the screw 5 connected to the coupling 12, which cooperates with the limiting sleeve 9 to ensure the smooth rotation of the screw 5. The bearing 13 is installed on the support 104, and two U-shaped frames 7 are fixed on the vertical plate 102. A screw bearing 8 is arranged on the U-shaped frame 7, and a limiting sleeve 9 is arranged on the vertical plate 102. The screw 5 is inserted into the screw bearing 8 and its end is inserted into the limiting sleeve 9. The two screws 5 are respectively connected to the vertical plate 102.

[0029] As a preferred implementation method of this embodiment, as shown in the attached Figure 3 As shown, a plurality of reinforcing ribs 15 and two diagonal rods 16 are arranged between the bottom plate 101 and the vertical plate 102 . The plurality of reinforcing ribs 15 are evenly distributed between the two diagonal rods 16 , and the two are arranged together to increase the stability of the bracket 1 structure. Embodiment 2

[0030] In order to ensure that the pre-tightening force of the wire rope meets the production requirements, we set an adjusting nut 10 at the end of each limit slide rod 2 according to the pre-tightening force requirement of the wire rope, and adjust the moving stroke of the movable plate 3 by adjusting the adjusting nut 10. Embodiment 3

[0031] In view of the vulnerable situation of bearings and couplings in the transmission structure, a separate shell cover protection is designed to protect both from damage caused by external impact. Figure 3 and 4 As shown, the specific implementation scheme is as follows: a shell 14 is installed on each of the supports 104, and the shell 14 covers the bearing 13 and the coupling 12 to protect the two from damage caused by external impact.

[0032] As attached Figure 2As shown, in the above three embodiments, the permanent magnetic confinement ring 4 is fixedly mounted on the movable plate 3 by means of hexagon socket bolts, and such a detachable design facilitates replacement due to wear.

[0033] Its installation method and working principle: as shown in the attached Figure 5 As shown, we first disassemble and install the coupling of the lower drum shaft, and then place the anti-skid restraint device between the drum and the rear bearing seat, so that the drum shaft transmission shaft passes through the hole, and finally use the coupling to connect the drum shaft to the output shaft of the reducer to complete the installation. In the on-site DCS control system program setting, the start and stop action of the winch is linked with the forward and reverse rotation actions of the two servo motors. When the rear winch device is started, the two servo motors are also started synchronously. The distance between the permanent magnetic restraint ring and the drum is adjusted by the screw drive to achieve magnetic coupling adsorption, and a pre-tightening force is generated on the wire rope in the forward and retracted state, replacing the original electromagnetic brake device, realizing the anti-skid function of the drum wire rope, ensuring the smooth running track of the wire rope, and the appropriate sensing distance with the chain safety distance.

[0034] The above shows and describes the main features and advantages of the utility model. For those skilled in the art, it is obvious that the specific implementation of the utility model is not limited to the details of the above exemplary embodiments, and the creative ideas and design ideas of the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model, which should be equivalent to the protection scope disclosed in the technical solution of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, so it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model.

[0035] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An anti-slip restraint device for a rear hoist drum of a coke oven coal charging car, comprising a bracket (1), characterized in that: The support (1) comprises a bottom plate (101) and a vertical plate (102) vertically arranged thereon; a mounting waist hole (105) is arranged on the bottom plate (101) for fixing the support (1) on the frame with bolts; an axial through hole (103) is arranged on the vertical plate (102) for passing the rotating shaft of the winch; four limiting sleeves (11) are respectively arranged on the vertical plate (102) around the axial through hole (103); four corners of the movable plate (3) are respectively passed through the limiting sleeves (11) through four limiting sliding rods (2) and are movably connected with the vertical plate (102); A permanent magnetic restraint ring (4) is arranged on the moving plate (3), and two servo motors (6) are installed on the vertical plate (102). The output shaft of each servo motor (6) is connected to a lead screw (5) via a coupling (12), and the two lead screws (5) are respectively connected to the vertical plate (102). The two servo motors (6) are interlocked with the start and stop actions of the winch through an on-site DCS control system, so that the permanent magnetic restraint ring (4) is synchronously started and the distance between the permanent magnetic restraint ring (4) and the drum (17) is adjusted by a lead screw transmission method to achieve magnetic coupling adsorption, thereby ensuring that the running track of the wire rope is smooth and the safe distance with the chain is appropriate.

2. The anti-slip restraint device for the rear hoist drum of a coke oven coal charging car according to claim 1, characterized in that: Two U-shaped frames (7) are fixed on the vertical plate (102), a lead screw bearing (8) is arranged on the U-shaped frame (7), a limiting shaft sleeve (9) is arranged on the vertical plate (102), and the lead screw (5) is inserted into the lead screw bearing (8) and its end is inserted into the limiting shaft sleeve (9).

3. The anti-slip restraint device for the rear hoist drum of a coke oven coal charging car according to claim 1, characterized in that: An adjusting nut (10) is provided at the end of each of the limit sliding rods (2) for adjusting the moving stroke of the movable plate (3).

4. The anti-slip restraint device for the rear hoist drum of a coke oven coal charging car according to claim 1, characterized in that: Two supports (104) are fixed on the vertical plate (102) for mounting the servo motor (6); the two supports (104) are distributed on both sides of the center line of the shaft through hole (103) and are located between the two limiting slide bars (2).

5. The anti-slip restraint device for the rear hoist drum of a coke oven coal charging car according to claim 4, characterized in that: A bearing (13) is provided at one end of a lead screw (5) connected to the coupling (12), and is used to ensure smooth rotation of the lead screw (5) by cooperating with a limiting sleeve (9). The bearing (13) is mounted on a support (104).

6. The anti-slip restraint device for the rear hoist drum of a coke oven coal charging car according to claim 5, characterized in that: A housing (14) is mounted on each of the supports (104), and the housing (14) covers the bearing (13) and the coupling (12) to protect the two from damage due to external impact.

7. An anti-slip restraint device for a rear hoist drum of a coke oven coal charging car according to any one of claims 1 to 6, characterized in that: A plurality of reinforcing rib plates (15) and two diagonal tie rods (16) are arranged between the bottom plate (101) and the vertical plate (102); the plurality of reinforcing rib plates (15) are evenly distributed between the two diagonal tie rods (16), and the two are arranged together to increase the stability of the support (1) structure.

8. The anti-slip restraint device for the rear hoist drum of a coke oven coal charging car according to claim 7, characterized in that: The permanent magnetic confinement ring (4) is fixedly mounted on the movable plate (3) by means of hexagon socket bolts, so as to facilitate replacement in case of wear.

Images