Pulley structure of scraper reclaimer

Abstract

The utility model discloses a tackle structure of a scraper reclaimer, and relates to the technical field of tackle structures of reclaimers. The tackle structure comprises a tackle cross beam with carrier rollers, the tackle cross beam is fixedly connected with a tackle beam frame, and a conveying belt is placed on the tackle cross beam. The pulley cross beam is divided into an up-down section, a blanking section, a stabilizing section and a measuring section, and the up-down section and the down-down section are located at the two ends of the pulley; an unloading structure is arranged above the pulley cross beam, and a lower port of the unloading structure is aligned to the blanking section; the stabilizing section and the measuring section are both located in front of the blanking section in the advancing direction of the conveying belt, and the measuring section is provided with an embedded metering belt weigher. According to the pulley structure, a traditional separation material taking mode is changed, the pulley structure is the pulley cross beam with the carrier rollers, a conveying belt is lifted to the pulley cross beam and moves along with the pulley, the belt is always located below a discharging opening, the weighing structure is installed on the pulley cross beam, it is guaranteed that weighing and real-time measurement are conducted in time after discharging is stable, and the working efficiency is improved. And the weighing structure meets the accuracy use requirement of the belt weigher.

Description

Technical Field

[0001] The utility model relates to the technical field of pulley structures of reclaimers, in particular to a pulley structure of a scraper reclaimer. Background Art

[0002] A scraper reclaimer (reclaimer) consists of a tracked unloading carriage and a cantilevered reclaimer mechanism that reciprocates to retrieve material from the stockpile. This cantilevered scraper-type unloading mechanism is a key component of a long-haul stacker reclaimer. Its structure is straightforward and easy to operate. The scraper's hopper is often mounted on a conveyor belt, moving synchronously with the on-site transport belt. This equipment features a high degree of automation, enabling unmanned operation, excellent environmental performance, and minimal land occupation. It is widely used in the collection and transportation of materials in various industries, including the power, building materials, chemical, mining, docks, and grain.

[0003] With the rapid development of technology and the increasing demand for multifunctional reclaiming equipment, people's requirements for reclaimers are no longer satisfied with the reclaiming function alone. The weighing function during the belt conveying process has been added to the reclaimer. The weighing of the current reclaimer is to install a belt scale on the integral conveyor belt roller track. This measurement position is fixed and cannot meet the requirement of timely material bearing after the pulley moves. Real-time measurement is not possible. Moreover, when the pulley moves in front of the weighing position, the material falls without passing the weighing position and cannot be weighed. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a pulley structure of a scraper reclaimer, and a weighing structure is placed on the pulley and moves with the pulley to meet the requirements of real-time weighing.

[0005] In order to achieve this technical purpose, the utility model adopts the following scheme:

[0006] The pulley structure of the scraper reclaimer is connected to the scraper reclaimer connecting arm through the pulley beam frame; the pulley structure includes a pulley beam with rollers and a unloading structure, the pulley beam is fixedly connected to the pulley beam frame, and a conveyor belt is placed on the pulley beam, and the conveyor belt is the feed belt of the reclaimer; the pulley beam is divided into an upper and lower section, a blanking section, a stable section and a measuring section, and the upper and lower sections are located at both ends of the pulley to ensure the smooth movement of the conveyor belt; a unloading structure is arranged above the pulley beam, and the lower end port of the unloading structure is aligned with the blanking section; the stable section and the measuring section are both located in the downward direction of the blanking section in the forward direction of the conveyor belt, and the stable section is behind the measuring section. After blanking, the material first passes through the stable section and then passes through the measuring section. The measuring section is provided with an embedded metering belt scale.

[0007] Compared with the existing technology, the beneficial effect of the present invention is that: the pulley structure changes the traditional upper pulley for dropping materials and lower belt conveyor for separation and picking up materials. The pulley is set as a pulley beam with rollers, and the conveyor belt is lifted onto the pulley rollers. As the pulley moves, there is always a belt below the discharge port, and the weighing structure is installed on the pulley to ensure that the material is weighed in time after the dropping is stable, and the measurement is carried out in real time. The weighing structure meets the accuracy requirements of the belt scale.

[0008] Furthermore, a blanking buffer roller is provided in the blanking section, and a long slot with an open upper section is provided on the bracket of the blanking section. The long slot structure allows the roller to be freely replaced; a buffer roller is provided in the stabilizing section to stabilize the material pile and ensure measurement accuracy.

[0009] Furthermore, a sinking angle steel is fixed on the lower side of the measuring section beam, and the sinking angle steel is connected to the metering belt scale, so that the metering belt scale is sunk below the conveyor belt.

[0010] Furthermore, the metering belt scale includes metering rollers and a belt scale. The metering rollers include flat rollers and angle rollers. The center installation height of the flat rollers is lower than 87mm, and the overall height of the angle rollers is lower than 328mm, ensuring smooth passage of the belt. The belt scale is hung upside down under the pulley beam by adjusting the bracket, so that the belt scale as a whole is sunk under the pulley beam.

[0011] Furthermore, a top screw bolt is installed at the end of the adjustment bracket to adjust the height of the belt scale.

[0012] Furthermore, the unloading structure includes a unloading hood, a unloading chute and a sealing chute. The unloading hood is a hood structure that is open obliquely upward. The lower end of the unloading hood is connected to the unloading chute, and the lower end of the unloading chute is connected to the sealing chute; the long side of the sealing chute is a side sealing plate, and the short side of the sealing chute is a sealing curtain. The lower side of the sealing curtain is in sealed contact with the conveyor belt to prevent material splashing.

[0013] Furthermore, the unloading structure is fixed to the pulley beam through a connecting beam and is suspended above the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A schematic diagram of the overall structure of the pulley structure of the scraper reclaimer provided in an embodiment of the utility model;

[0015] Figure 2 A schematic structural diagram of a pulley structure of a scraper reclaimer provided in an embodiment of the present utility model;

[0016] Figure 3 A schematic structural diagram of a pulley beam provided in an embodiment of the present utility model;

[0017] Figure 4 for Figure 3A partial enlarged view of point A in the middle;

[0018] Figure 5 A schematic structural diagram of a sealed chute provided in an embodiment of the present utility model;

[0019] Figure 6 A schematic structural diagram of a measuring belt scale provided in an embodiment of the present utility model;

[0020] Figure 7 A schematic structural diagram of a belt scale provided in an embodiment of the utility model;

[0021] Figure 8 for Figure 3 A partial enlarged view of point B in the middle;

[0022] Figure 9 A diagram of the feeding process provided by an embodiment of the present utility model;

[0023] The markings in the figure are: 1. Conveyor belt; 2. Belt roller frame; 3. Pulley structure; 31. Pulley beam frame; 32. Pulley beam; 321. Upward section; 322. Downward section; 323. Blanking section; 3231. Blanking buffer roller; 3232. Long notch; 324. Stable section; 325. Measuring section; 3251. Sinking angle steel; 33. Unloading structure; 331. Unloading cover; 332. Unloading chute; 333. Sealing chute; 3331. Side sealing plate; 3332. Sealing curtain; 34. Side connecting beam; 4. Connecting arm; 5. Measuring belt scale; 51. Measuring roller; 511. Flat roller; 512. Angle roller; 52. Belt scale; 521. Adjusting bracket. DETAILED DESCRIPTION

[0024] In order to fully understand the purpose, features and effects of the present invention, the present invention is described in detail through the following specific implementation methods, but the present invention is not limited thereto.

[0025] like Figure 1 As shown, the present invention provides a pulley structure for a reclaimer, comprising a conveyor belt 1, a belt idler frame 2, and a pulley structure 3. The conveyor belt 1 is the entire conveyor belt of the scraper reclaimer, i.e., the conveyor belt 1 that transports materials to a designated location. The majority of the conveyor belt 1 is mounted on the belt idler frame 2 and travels on the belt idler frame 2. The pulley structure 3 is suspended above the belt idler frame 2, and a pulley beam 31 is fixed to the pulley structure 3. The pulley beam 31 is connected to the scraper reclaimer connecting arm 4. A portion of the conveyor belt 1 travels over the pulley structure 3, rather than on the belt idler frame 2 below the pulley.

[0026] like Figure 2 and Figure 3As shown, the pulley structure 3 includes a pulley beam 32 with rollers and a unloading structure 33. The pulley beam 32 is divided into an upward section 321, a downward section 322, a blanking section 323, a stabilizing section 324 and a measuring section 325. The upward and downward sections are respectively located at the two ends of the pulley beam 32 and are slightly inclined downward. Driven rollers are installed in the upward section 321 and the downward section 322 to ensure that the conveyor belt on site rises or falls naturally when passing over the pulley.

[0027] The blanking section 323 is adjacent to the upward section 321. Blanking buffer rollers 3231 are set in the blanking section 323. The two sides of the blanking section 323 are pulley beams 31 to ensure that the overall structure is stable and safe when blanking. The side wall of the mounting bracket of the blanking buffer roller 3231 is provided with a long slot 3232 with an open upper end. Figure 4 As shown, the two ends of the blanking buffer roller 3231 are respectively clamped in the long slots 3232 to achieve free removal and replacement of the blanking buffer roller 3231.

[0028] Above the material discharge section 323 is a discharge structure 33, which includes a discharge cover 331, a discharge chute 332, and a sealed chute 333. The discharge cover 331 is a cover structure that opens obliquely upward. The lower end of the discharge cover 331 is connected to the discharge chute 332, and the lower end of the discharge chute 332 is connected to the sealed chute 333. The sealed chute 333 is an inverted frustum-shaped structure that is open at the top and bottom. The long side of the sealed chute 333 is a side sealing plate 3331, and the short side of the sealed chute 333 is a sealing curtain 3332. The lower side of the sealing curtain 3332 is in sealed contact with the conveyor belt 1 to prevent material splashing. Figure 5 As shown. Preferably, the inner walls of the discharge cover 331, discharge chute 332, and sealed chute 333 are all equipped with wear-resistant liners. The material carried by the scraper falls onto the discharge liners and freely scatters onto the conveyor belt where the pulley structure's discharge section 323 is located. To ensure the overall structural stability of the pulley, side connecting beams 34 are fixedly connected on both sides of the discharge structure 33. The lower ends of the side connecting beams 34 are fixedly connected to the pulley crossbeam 32, ensuring a stable and diagonal pulley during operation.

[0029] On the other side of the blanking section 323 is the stabilizing section 324. The pulley beam of this section is equipped with buffer rollers to stabilize the material pile and ensure measurement accuracy. On the other side of this section is the measuring section 325, which is located ahead of the stabilizing section 324 in the direction of conveyor belt 1's travel. That is, the material follows the belt through the stabilizing section 324 before reaching the measuring section 325.

[0030] The measuring section 325 is provided with an embedded measuring belt scale 5. The specific structure is that a sinking angle steel 3251 is fixed on the lower side of the pulley beam of the measuring section. The sinking angle steel 3251 is connected to the measuring belt scale 5, so that the measuring belt scale is sunk below the conveyor belt 1. Figure 6shown.

[0031] The basic principle of a belt scale is that the weighing sensor measures the load on the belt in the weighing area and transmits the signal to the belt scale instrument. The speed sensor measures the instantaneous speed of the belt and also transmits the signal to the belt scale instrument. The instrument multiplies the two variables to obtain the instantaneous flow rate. The accumulation of the instantaneous flow rate is the total amount of conveyed material.

[0032] like Figure 7 As shown, in order to meet the accurate use of current conventional belt scales, the metering belt scale 5 includes a metering roller 51 and a belt scale 52. The metering roller 51 includes a flat roller 511, an angle roller 512 and an idler bracket. The idler bracket is made of channel steel profiles. Some bracket channels are made of small specifications to meet the force requirements and reduce the weight of the idler bracket. The center installation height of the flat roller 511 is less than 87mm, and the overall installation height of the angle roller 512 is less than 328mm to ensure smooth operation of the belt. The metering roller is lightweight in design, and the installation height and overall weight are significantly lower than the conveyor machinery idler bracket standard of GB / T 10595-2013. While ensuring strength, it also ensures unobstructed passage of the belt, meeting the requirements of the on-site measurement standard of the belt scale. The belt scale 52 is hung upside down under the pulley by adjusting the bracket 521 so that the belt scale 52 is sunk under the pulley as a whole. Figure 8 As shown, the ends of the adjustment bracket 521 are connected to the pulley crossbeam via bolts. The nuts on the bolts adjust the vertical position of the belt scale 52, ensuring optimal contact between the belt conveyor sensor and the belt. The embedded structure also protects the belt scale 52 from splashing material and prevents it from scratching the lower belt conveyor.

[0033] Working principle:

[0034] From the perspective of the belt conveyor: starting from the direction of operation of the conveyor belt 1, the unloaded conveyor belt 1 passes through the driven rollers of the upward section 321 of the pulley structure in sequence, and begins to lift the conveyor belt 1 into the pulley; then the unloaded conveyor belt 1 passes through the sealing curtain 3332 and the side sealing plate 3331 of the sealing chute 333, at which time the material falls; after being loaded, the conveyor belt 1 continues to run on the pulley; then it passes through the stabilizing section 324 and the measuring section 325 on the pulley, at which time measurement begins; finally, the loaded conveyor belt 1 passes through the driven rollers of the downward section 322 to return to normal height, and is delivered to the destination on the belt conveyor.

[0035] Material perspective: Figure 9As shown, the material is driven by the scraper of the reclaimer into the discharge cover 331 and the discharge chute 332; the material falls onto the conveyor belt 1 through the discharge chute 332 with a wear-resistant liner. Under the sealing protection of the sealing chute 333, the material does not splash and moves with the conveyor belt 1. It passes through the sealing curtain 3332 and enters the stable section 324 in sequence. Then it passes through the metering roller 51 and begins to enter the measuring section 325 for measurement; finally, it passes through the descending section 322 and reaches the normal height and is delivered to the destination on the belt conveyor.

[0036] Finally, it should be noted that the above-listed examples are only preferred embodiments of the present invention. Of course, those skilled in the art can make changes and modifications to the present invention. If these modifications and modifications fall within the scope of the claims of the present invention and their equivalent technologies, they should be considered to be within the scope of protection of the present invention.

Claims

1. A pulley structure of a scraper reclaimer, wherein the pulley structure is connected to a connecting arm of the scraper reclaimer via a pulley beam; The pulley structure includes a pulley beam with rollers and a discharge structure. The pulley crossbeam is fixedly connected to the pulley beam frame, and a conveyor belt is placed on the pulley crossbeam, and the conveyor belt is the feed belt of the reclaimer; The pulley beam is divided into up and down sections, a blanking section, a stabilizing section and a measuring section. The up and down sections are located at both ends of the pulley to ensure smooth movement of the conveyor belt. A discharge structure is provided above the pulley beam, and the lower end of the discharge structure is aligned with the blanking section; The stabilizing section and the measuring section are both located in the downstream direction of the blanking section in the forward direction of the conveyor belt, and the stabilizing section is behind the measuring section. After blanking, the material first passes through the stabilizing section and then the measuring section. The measuring section is equipped with an embedded metering belt scale.

2. The pulley structure of the scraper reclaimer according to claim 1, characterized in that: Blanking section is equipped with blanking buffer rollers, and the bracket of the blanking section is provided with a long slot with an open upper section. The long slot structure allows the rollers to be freely replaced; buffer rollers are set in the stabilizing section to stabilize the material pile and ensure measurement accuracy.

3. The pulley structure of the scraper reclaimer according to claim 2, characterized in that: A sinking angle steel is fixed on the lower side of the measuring section beam, and the sinking angle steel is connected to the metering belt scale, so that the metering belt scale is sunk below the conveyor belt.

4. The pulley structure of the scraper reclaimer according to claim 1, characterized in that: The metering belt scale includes metering rollers and a belt scale. The metering rollers include flat rollers and angle rollers. The center installation height of the flat rollers is less than 87mm, and the overall height of the angle rollers is less than 328mm to ensure smooth passage of the belt. The belt scale is hung upside down under the pulley beam through an adjusting bracket, so that the belt scale is sunk under the pulley beam as a whole.

5. The pulley structure of the scraper reclaimer according to claim 4, characterized in that: The end of the adjustment bracket is equipped with a top screw bolt to adjust the height of the belt scale.

6. The pulley structure of the scraper reclaimer according to claim 1, characterized in that: The unloading structure includes a unloading cover, a unloading chute and a sealing chute. The unloading cover is a cover structure that is open obliquely upward. The lower end of the unloading cover is connected to the unloading chute, and the lower end of the unloading chute is connected to the sealing chute. The long side of the sealing chute is a side sealing plate, and the short side of the sealing chute is a sealing curtain. The lower side of the sealing curtain is in sealed contact with the conveyor belt to prevent material splashing.

7. The pulley structure of the scraper reclaimer according to claim 6, characterized in that: The unloading structure is fixed to the pulley beam through the connecting beam and is suspended above the conveyor belt.

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