A carrier roller buffer rack placed in a belt housing
By designing a roller buffer frame inside the belt conveyor, and utilizing the sliding groove and pin structure of the support frame and buffer components, the storage, retrieval, and position adjustment of the rollers can be conveniently realized. This solves the problems of long roller transfer distances, high manpower consumption, and passageway obstruction, and improves maintenance efficiency and passageway unobstructedness.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI ZHENGTONG COAL IND CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-06-26
AI Technical Summary
In the existing technology, the placement of idlers at intervals on the belt conveyor results in a messy belt conveyor, affects the appearance, occupies the pedestrian passage, and hinders the passage of pedestrians and materials. At the same time, the transfer distance is long, the manpower consumption is large, and the maintenance efficiency is affected.
Design a roller buffer rack placed inside a belt conveyor frame, including a support frame and a buffer assembly. The buffer assembly includes a support plate, a sliding groove, a slide bar, and a bearing plate for storing rollers. The sliding groove and the pin cooperate to realize convenient storage, retrieval, and position adjustment of the rollers.
It solves the problems of long transfer distance and high manpower consumption of idler rollers, keeps the passage clean, improves the convenience and operational flexibility of idler roller replacement, ensures the normal passage of pedestrians and materials, and improves maintenance efficiency.
Smart Images

Figure CN224410512U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal mine electromechanical transportation technology, and in particular to a roller buffer frame placed inside a belt conveyor. Background Technology
[0002] In underground coal mine operations, the main conveyor belt is responsible for transporting materials over long distances, with a single belt often exceeding 2000m in length. Due to the high-intensity operation, the idler rollers wear out frequently, requiring 2 hours of daily maintenance by staff to replace them. Before maintenance, staff need to inspect from the tail to the head of the conveyor and record the damaged locations. However, in actual operation, the damaged rollers are scattered, and there are many idler rollers that need to be replaced. The current operation process is to transfer the idler rollers from the head of the conveyor to the damaged location. The transfer distance is long and the manpower consumption is high. Usually, 3-4 people are needed to be specifically responsible for the transfer before maintenance. Maintenance time is tight. If the idler rollers are not transferred in time, the replacement cannot be completed within the shift, affecting maintenance efficiency.
[0003] To address the issue of idler supply, the existing method of directly placing idlers at intervals along the belt conveyor has the following drawbacks: it affects the overall aesthetics of the belt conveyor and makes materials messy; it also occupies the sidewalk, hindering the normal passage of pedestrians and materials. Therefore, this application provides an idler buffer rack placed inside the belt conveyor frame to meet the requirements. Utility Model Content
[0004] The technical problem to be solved by this utility model is to provide a roller buffer rack placed inside the belt frame to solve the existing technical problem that directly placing rollers at intervals on the belt conveyor results in a messy belt conveyor, affects the appearance, occupies the pedestrian passage, and hinders the passage of pedestrians and materials.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A roller buffer rack placed inside a belt frame includes a support frame and a conveyor belt body. The conveyor belt body is mounted on the support frame, and a buffer assembly is installed on the inner wall of the support frame for storing rollers.
[0007] The buffer assembly includes a support plate, which is fixedly mounted on the inner wall of a support frame. A sliding groove is provided on the support plate, and a first slide rod and a second slide rod are slidably mounted on the inner wall of the sliding groove. A bearing plate is fixedly mounted on the first slide rod and the second slide rod. A plurality of storage slots are provided on the bearing plate, and rollers are stored on the inner wall of the storage slots. A connecting rod is slidably mounted on the inner wall of the second slide rod, and both the connecting rod and the first slide rod slide with the sliding groove.
[0008] Preferably, the support plate has a first limiting groove, the end of the connecting rod near the first limiting groove has a first insertion hole, a first pin is inserted into the first limiting groove, the first pin is inserted into the first limiting groove and the first insertion hole respectively, the second sliding rod has a second limiting groove, the end of the connecting rod near the second limiting groove has a second insertion hole, a second pin is inserted into the second limiting groove, the second pin is inserted into the second limiting groove and the second insertion hole respectively.
[0009] Preferably, the conveyor belt body includes a mounting frame, which is fixedly mounted on the surface of the support frame. A crossbeam is fixedly arranged between the mounting frames, and an active idler roller is rotatably mounted between the mounting frame and the crossbeam. The active idler roller is used to provide support for the belt.
[0010] Preferably, a slider is fixedly provided on the outer wall of the connecting rod, and a groove is provided on the inner wall of the second slider, so that the slider slides with the inner wall of the groove.
[0011] Preferably, both the first limiting groove and the second limiting groove are open.
[0012] Preferably, the inner wall of the storage groove is arc-shaped, and the outer wall of the idler roller fits into the arc shape inside the storage groove.
[0013] Preferably, several hooks are fixed on both sides of the support frame.
[0014] Preferably, a support rib is fixedly provided between the mounting bracket and the crossbeam.
[0015] Compared with the prior art, this utility model has at least the following beneficial effects:
[0016] In the above solution, the setting of the buffer component solves the problem of long transfer distance and high manpower consumption in the current method of transferring idlers from the machine head to the damaged part. When the conveyor belt body is inspected daily, if the active idler is found to be damaged, the staff does not need to transfer it over a long distance. They can simply take the idler from the bearing plate near the conveyor belt body for replacement, which shortens the transfer time and distance of the idler and saves manpower.
[0017] By placing the idlers in the idler buffer rack inside the belt frame, the large-scale accumulation of idlers is avoided, the occupation of the sidewalk is reduced, the limited space is used rationally, and the passage is kept clean and unobstructed.
[0018] The idler roller buffer frame is placed inside the belt frame, which avoids the idler rollers from occupying the sidewalk and ensures the normal passage of pedestrians and materials;
[0019] By removing the first pin, sliding the carrier plate to the corresponding position of the target active idler, and then pulling out the second pin and pushing in the connecting rod, the carrier plate can be rotated to the ground relatively easily. This allows workers to easily remove the idler from the storage slot of the carrier plate to replace the damaged active idler, thus improving the ease of use of the idler.
[0020] The support plate can slide horizontally on the support plate, and its position and state can be adjusted. The support plate can be slid to a suitable position according to actual needs, so that the staff can easily access the idler rollers when changing the active idler rollers in different positions, which improves the operational flexibility and applicability of the entire idler roller buffer rack. Attached Figure Description
[0021] The accompanying drawings, which form part of this specification, illustrate embodiments of the present disclosure and, together with the specification, further serve to explain the principles of the present disclosure and enable those skilled in the art to implement and use the present disclosure.
[0022] Figure 1 This is a schematic diagram of the overall structure of the idler roller buffer frame placed inside the belt frame according to this utility model;
[0023] Figure 2 This is a schematic diagram of the support frame, mounting frame, and active idler roller of this utility model;
[0024] Figure 3 This is a schematic diagram of the support frame, support plate, and bearing plate of this utility model;
[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle;
[0026] Figure 5 This is a schematic diagram of the support plate, the first limiting groove, and the first pin of this utility model;
[0027] Figure 6 This is a schematic diagram of the supporting plate, the first sliding rod, and the storage groove of this utility model;
[0028] Figure 7 for Figure 6 Enlarged view of section B in the middle.
[0029] Figure Labels
[0030] 1. Support frame; 2. Conveyor belt body; 3. Buffer assembly; 301. Support plate; 302. Sliding groove; 303. First sliding rod; 304. Second sliding rod; 305. Bearing plate; 306. Storage groove; 307. Idler roller; 308. Connecting rod; 401. First limiting groove; 402. First insertion hole; 403. First pin; 404. Second limiting groove; 405. Second insertion hole; 406. Second pin; 5. Mounting frame; 6. Crossbeam; 7. Drive idler roller; 9. Slider; 10. Sliding groove; 11. Support rib.
[0031] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to the specific structure, device and environment. According to specific needs, those skilled in the art can adjust or modify these devices and environments, and such adjustments or modifications are still included in the scope of the appended claims. Detailed Implementation
[0032] The present invention provides a roller buffer frame placed inside a belt conveyor frame, which is described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and those skilled in the art can also use other alternative methods to implement some known technologies; moreover, the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.
[0033] like Figures 1-7 As shown, an embodiment of this utility model provides a roller buffer rack placed inside a belt frame, including a support frame 1 and a conveyor belt body 2. The conveyor belt body 2 is mounted on the support frame 1, and a buffer assembly 3 is installed on the inner wall of the support frame 1 for storing rollers 307. The support frame 1 serves as the basic support structure for the entire roller 307 buffer rack, playing a role in stably supporting the conveyor belt body 2 and the buffer assembly 3. Its material is high-strength steel, which has sufficient strength and stability to withstand various forces generated by the conveyor belt body 2 during operation, as well as the gravity applied by the buffer assembly 3 when storing rollers 307. The mounting frame 5 is fixedly installed on the surface of the support frame 1. The mounting frame 5 is an important connecting component of the conveyor belt body 2, which can stably support components such as the crossbeam 6 and the active roller 7, ensuring the normal operation of the conveyor belt body 2.
[0034] The conveyor belt body 2 includes a mounting frame 5, which is fixedly mounted on the surface of the support frame 1. A crossbeam 6 is fixedly installed between the mounting frames 5. The crossbeam 6 plays a key role in lateral support in the conveyor belt body 2. It is usually made of sturdy steel beams and reliably connected to the mounting frames 5 at both ends. The presence of the crossbeam 6 effectively enhances the overall structural strength of the conveyor belt body 2, ensuring that the drive idler 7 remains stable during rotation and avoiding the normal transport of the belt due to lateral sway. The drive idler 7 is rotatably mounted between the mounting frame 5 and the crossbeam 6. Its surface is usually made of a special wear-resistant material to improve its service life. The drive idler 7 rotates continuously under the drive of a motor or other power equipment, providing stable support for the belt and enabling the belt to transport materials smoothly. A support rib 11 is fixedly installed between the mounting frame 5 and the crossbeam 6. The addition of the support rib 11 makes the mounting frame 5, the crossbeam 6 and the support rib 11 form a stable triangular structure, enhancing the connection strength between the mounting frame 5 and the crossbeam 6 and improving the load-bearing capacity of the overall structure.
[0035] The buffer assembly 3 includes a support plate 301, which is securely fixed to the inner wall of the support frame 1. A sliding groove 302 is formed on the support plate 301. The inner wall of the sliding groove 302 is slidably adapted to a first sliding rod 303 and a second sliding rod 304, allowing the first sliding rod 303 and the second sliding rod 304 to slide within the sliding groove 302. A bearing plate 305 is fixed on the first sliding rod 303 and the second sliding rod 304. The bearing plate 305 serves as a platform for placing items, and its surface is evenly provided with several storage slots 306, which can store the idler roller 307 in the inner wall of the storage slots 306, thereby realizing the storage of the idler roller 307. The storage trough 306 features an arc-shaped inner wall, with the outer wall of the idler roller 307 fitting snugly against the arc within the trough 306. This increases the stability of the idler roller 307 during storage. The arc-shaped inner wall tightly adheres to the idler roller 307, restricting its rolling from all directions. This prevents damage from accidental rolling during vibration, transportation, or daily operation, and also prevents it from rolling out of the storage trough 306 and affecting the working environment. The large contact area between the idler roller 307 and the arc-shaped wall evenly distributes its own weight and external pressure, preventing stress concentration. This prevents excessive local wear on the idler roller 307 and extends its service life.
[0036] A connecting rod 308 is slidably provided on the inner wall of the second slide rod 304. The connecting rod 308 is slidably connected to the sliding groove 302. A slider 9 is fixedly provided on the outer wall of the connecting rod 308. A sliding groove 10 is opened on the inner wall of the second slide rod 304. The slider 9 slides with the inner wall of the sliding groove 10. Through the sliding cooperation of the slider 9 in the sliding groove 10, the connecting rod 308 can always maintain a straight trajectory when moving in the second slide rod 304, avoiding deviation or jamming, and making the operation of storing and retrieving the idler roller 307 more precise. With this setting, when the system needs to perform operations such as storing and retrieving the idler roller 307, the first slide rod 303, the second slide rod 304 and the connecting rod 308 can work together. Under the constraint and guidance of the sliding groove 302, they can flexibly adjust their positions, making it convenient for the staff to store and retrieve the idler roller 307, improving the working efficiency and operation convenience of the buffer component 3.
[0037] During routine inspections of the conveyor belt body 2, if the active idler roller 7 is found to be damaged, staff do not need to transport it over long distances. They can simply take the idler roller 307 from the bearing plate 305 near the conveyor belt body 2 for replacement. This shortens the transport time and distance of the idler roller 307, saves manpower, avoids the large-scale accumulation of idler roller 307, reduces the occupation of the sidewalk, makes reasonable use of limited space, and keeps the passage clean and unobstructed.
[0038] The support plate 301 has a first limiting groove 401. The connecting rod 308 has a first insertion hole 402 at one end near the first limiting groove 401. A first pin 403 is inserted into the first limiting groove 401, and the first pin 403 is inserted into both the first limiting groove 401 and the first insertion hole 402, thus initially limiting the connection between the connecting rod 308 and the support plate 301. The second sliding rod 304 has a second limiting groove 404. The connecting rod 308 has a second insertion hole 405 at one end near the second limiting groove 404. A second pin 406 is inserted into the second limiting groove 404, and the second pin 406 is inserted into both the second limiting groove 404 and the second insertion hole 405. Next, both the first limiting groove 401 and the second limiting groove 404 are open. The open first insertion hole 402 and the second insertion hole 405 allow the first pin 403 and the second pin 406 to be directly aligned and inserted. When changing the idler roller 307, it is necessary to frequently insert and remove the connecting pin. The convenient operation can greatly improve work efficiency, thereby completing the further limiting and fixing of the connecting rod 308 at this position. Several hooks are fixed on both sides of the support frame 1. When the first pin 403 and the second pin 406 need to be reused, the staff can quickly find the corresponding pin at the hook, without having to search around in the messy work area, which greatly saves time and improves work efficiency.
[0039] When the active idler 7 on one side of the conveyor belt body 2 is damaged and needs to be replaced, firstly, remove the first pin 403 from the support plate 301, so that the first pin 403 disengages from the first limiting groove 401 and the first insertion hole 402 respectively. Then, slide the bearing plate 305 along the direction of the active idler 7 to be replaced. During this process, the connecting rod 308 and the first slide rod 303 slide synchronously on the inner wall of the sliding groove 302. When the bearing plate 305 slides to the corresponding position of the target active idler 7, pull out the second pin 406 on the first slide rod 303. When pulling out the pin, you need to hold the bearing plate 305 with your hand to prevent it from shaking. After pulling out the second pin 406, push the connecting rod 308 into the inner wall of the second slide rod 304, and then slowly lower the hand holding the bearing plate 305. At this time, the first slide rod 303 serves as a steering fulcrum, and the bearing plate 305 will rotate downward in the direction of the second slide rod 304.
[0040] When the support plate 305 contacts the ground, the idler roller 307 can be removed from the storage slot 306 of the support plate 305 to replace the damaged drive idler roller 7. After the idler roller 307 is replaced, the support plate 305 needs to be reset. The support plate 305 is then manually pulled towards the second slide bar 304 until the support plate 305 and the support plate 301 are in a horizontal position. Then, the connecting rods 308 are pulled to slide out from the inner wall of the second slide bar 304. The connecting rods 308 are then aligned with the sliding groove 302, ensuring that the outer wall of the connecting rod 308 contacts the sliding groove 302. Finally, the connecting rods are... The second insertion hole 405 on the rod 308 is aligned with the second limiting groove 404, and the second pin 406 is inserted so that the second pin 406 passes through the second limiting groove 404 and the second insertion hole 405 at the same time. At this point, the bearing plate 305 can slide horizontally on the support plate 301. Then, according to actual needs, the bearing plate 305 is slid to a suitable position on the support plate 301. Finally, the first pin 403 is inserted into the first limiting groove 401 and the first insertion hole 402 to limit the bearing plate 305 and prevent the vibration or shaking generated by the conveyor belt body 2 during operation from affecting the idler roller 307 on the bearing plate 305.
[0041] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details have been described in detail in the above preferred embodiments; however, those skilled in the art can fully understand this utility model even without these detailed descriptions.
[0042] The above description is only a preferred embodiment of the present 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 the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.
Claims
1. A roller buffer frame placed inside a belt conveyor, characterized in that, It includes a support frame (1) and a conveyor belt body (2), the conveyor belt body (2) is mounted on the support frame (1), and a buffer assembly (3) is installed on the inner wall of the support frame (1) for storing idler rollers (307); The buffer component (3) includes a support plate (301), which is fixedly installed on the inner wall of the support frame (1). A sliding groove (302) is provided on the support plate (301). A first slide rod (303) and a second slide rod (304) are slidably installed on the inner wall of the sliding groove (302). A bearing plate (305) is fixedly installed on the first slide rod (303) and the second slide rod (304). A plurality of storage slots (306) are provided on the bearing plate (305). A roller (307) is stored on the inner wall of the storage slot (306). A connecting rod (308) is slidably installed on the inner wall of the second slide rod (304). Both the connecting rod (308) and the first slide rod (303) slide with the sliding groove (302).
2. The idler roller buffer frame placed inside the belt frame according to claim 1, characterized in that, The support plate (301) has a first limiting groove (401), and the connecting rod (308) has a first insertion hole (402) at one end near the first limiting groove (401). A first pin (403) is inserted into the first limiting groove (401), and the first pin (403) is inserted into the first limiting groove (401) and the first insertion hole (402) respectively. The second sliding rod (304) has a second limiting groove (404), and the connecting rod (308) has a second insertion hole (405) at one end near the second limiting groove (404). A second pin (406) is inserted into the second limiting groove (404), and the second pin (406) is inserted into the second limiting groove (404) and the second insertion hole (405) respectively.
3. The idler roller buffer frame placed inside the belt frame according to claim 1, characterized in that, The conveyor belt body (2) includes a mounting frame (5), which is fixedly mounted on the surface of the support frame (1). A crossbeam (6) is fixedly mounted between the mounting frames (5). An active idler roller (7) is rotatably mounted between the mounting frame (5) and the crossbeam (6). The active idler roller (7) is used to provide support for the belt.
4. The idler roller buffer frame placed inside the belt frame according to claim 1, characterized in that, A slider (9) is fixedly provided on the outer wall of the connecting rod (308), and a groove (10) is provided on the inner wall of the second sliding rod (304), and the slider (9) slides on the inner wall of the groove (10).
5. The idler roller buffer frame placed inside the belt frame according to claim 2, characterized in that, Both the first limiting groove (401) and the second limiting groove (404) are open.
6. The idler roller buffer frame placed inside the belt frame according to claim 1, characterized in that, The inner wall of the storage groove (306) is arc-shaped, and the outer wall of the roller (307) fits into the arc shape inside the storage groove (306).
7. The idler roller buffer frame placed inside the belt frame according to claim 3, characterized in that, Several hooks are fixed on both sides of the support frame (1).
8. The idler roller buffer frame placed inside the belt frame according to claim 3, characterized in that, A support rib (11) is fixedly provided between the mounting bracket (5) and the crossbeam (6).