Vertical heavy hammer buffer device of belt conveyor and belt conveyor
By designing a vertical counterweight buffer device for belt conveyors, using cylindrical helical compression springs and limiting mechanisms, a dual buffer against impact energy is achieved, solving the safety hazard of uncontrolled falling of the counterweight box and improving the safety of equipment and personnel.
Patent Information
- Application Number
- CN202520404513.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing counterweight buffer devices pose safety hazards in belt conveyor systems, especially when the conveyor belt breaks unexpectedly or is being repaired or replaced, the counterweight box may fall out of control, endangering equipment and personnel safety.
Design a vertical counterweight buffer device for a belt conveyor, which adopts an upper platform, a lower platform and a buffer mechanism. The buffer mechanism uses a cylindrical helical compression spring and is equipped with a limiting mechanism. Through the double buffering effect of the buffer rubber plate and the cylindrical helical compression spring, combined with the limiting mechanism to prevent rebound, safe buffering is achieved.
It effectively absorbs and disperses impact energy, prevents the counterweight box from falling, improves the safety of equipment and personnel, and ensures the stable operation of the conveyor.
Smart Images

Figure CN223779156U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of belt conveyor technology, and in particular to a vertical counterweight buffer device for a belt conveyor and a belt conveyor. Background Technology
[0002] In China's industrial sector, counterweight buffer devices are widely deployed in belt conveyor systems, particularly in critical areas such as coal conveying in power plants, tubular conveyors, and ground corridor belt conveyors. These conveyors, with their large number of units, compact design, and ease of adjustment and maintenance, have become essential components of industrial production lines.
[0003] As a key piece of equipment in coal transportation, the efficient and stable operation of belt conveyors directly affects the efficiency and safety of the entire power generation process. The application of counterweight buffer devices not only ensures the smooth operation of the conveyor belt under complex working conditions but also plays a crucial role in emergency braking. However, although counterweight buffer devices play a positive role in improving the safety of the conveyor system, there are safety hazards during the tensioning process. Especially in extreme cases such as accidental conveyor belt breakage or maintenance / replacement of the vertical counterweight device, the counterweight box may fall uncontrollably, endangering equipment, the floor of the tensioning room, and personnel. Summary of the Invention
[0004] In order to solve the technical problems existing in the above-mentioned technologies, it is necessary to provide a vertical counterweight buffer device for belt conveyors.
[0005] A vertical counterweight buffer device for a belt conveyor includes an upper platform, a lower platform located directly below the upper platform, and a buffer mechanism disposed between the upper platform and the lower platform; an upper positioning sleeve is fixedly disposed on the lower surface of the upper platform, a lower positioning sleeve is fixedly disposed on the upper surface of the lower platform, the upper end of the buffer mechanism is connected to the upper positioning sleeve, and the lower end of the buffer mechanism is connected to the lower positioning sleeve.
[0006] Preferably, the buffer mechanism uses a cylindrical helical compression spring.
[0007] Preferably, a limiting mechanism is also provided between the upper platform and the lower platform.
[0008] Preferably, the limiting mechanism includes a limiting sleeve and a limiting rod; the limiting sleeve is fixed to the upper surface of the lower platform, the upper end of the limiting rod is fixed to the lower surface of the upper platform, the lower end of the limiting rod is inserted along the top of the limiting sleeve, and the limiting rod can slide longitudinally along the limiting sleeve; the lower end of the limiting rod is provided with a limiting plate to prevent the limiting rod from being pulled out of the limiting sleeve.
[0009] Preferably, the upper surface of the upper platform is provided with a buffer rubber plate.
[0010] Preferably, the limiting mechanisms are distributed at the four corners of the upper and lower platforms.
[0011] Preferably, the buffer mechanism is evenly distributed along the four edges of the upper and lower platforms.
[0012] It is also necessary to provide a belt conveyor.
[0013] A belt conveyor includes the aforementioned vertical counterweight buffer device for belt conveyors.
[0014] Compared with existing technologies, the vertical counterweight buffer device for belt conveyors provided by this utility model absorbs and disperses impact energy through the deformation of the buffer mechanism between the upper and lower platforms. The upper platform surface is equipped with a buffer rubber plate, which absorbs impact energy a second time. When a heavy object falls onto the upper platform, the buffer rubber plate provides the first layer of buffering and simultaneously protects the upper platform. The upper platform compresses the cylindrical helical compression spring, achieving energy buffering. In use, the buffer rubber plate and the cylindrical helical compression spring provide a dual buffering effect for the entire buffer device. Furthermore, the use of a limiting mechanism prevents the upper platform from rebounding, providing excellent limiting functionality. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0016] Figure 1 This is a front view structural diagram of the present invention.
[0017] Figure 2 This utility model Figure 1 A top-view structural diagram.
[0018] Figure 3 This utility model Figure 1 A side view structural diagram.
[0019] Figure 4 This is a front view structural diagram of the platform of this utility model.
[0020] Figure 5 This utility model Figure 4 A side view structural diagram.
[0021] Figure 6 This is a front view structural diagram of the lower platform of this utility model.
[0022] Figure 7This utility model Figure 6 A side view structural diagram.
[0023] In the diagram: Upper platform 01, Lower platform 02, Buffer mechanism 03, Upper positioning sleeve 04, Lower positioning sleeve 05, Limiting mechanism 06, Limiting sleeve 61, Limiting rod 62, Limiting plate 63, Round hole 64, Buffer rubber plate 07. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0025] In the description of this utility model, it should be understood that the terms "upper", "middle", "outer", "inner", "lower", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0026] Please refer to Figures 1 to 7 In one embodiment, this utility model provides a vertical counterweight buffer device for a belt conveyor, including an upper platform 01, a lower platform 02 located directly below the upper platform 01, and a buffer mechanism 03 disposed between the upper platform 01 and the lower platform 02. An upper positioning sleeve 04 is fixedly disposed on the lower surface of the upper platform 01, and a lower positioning sleeve 05 is fixedly disposed on the upper surface of the lower platform 02. The upper end of the buffer mechanism 03 is connected to the upper positioning sleeve 04, and the lower end of the buffer mechanism 03 is connected to the lower positioning sleeve 05. The upper positioning sleeve 04 and the lower positioning sleeve 05 can position the buffer mechanism 03, preventing displacement after deformation. When a heavy object falls onto the upper platform 01, the buffer mechanism 03, after deformation, can absorb and disperse the impact energy, protecting the buffer device platform.
[0027] Of course, for the buffer mechanism 03, a cylindrical helical compression spring can be used.
[0028] In one embodiment, a limiting mechanism 06 is also provided between the upper platform 01 and the lower platform 02. The limiting mechanism 06 is distributed at the four corners of the upper platform 01 and the lower platform 02.
[0029] Specifically, the limiting mechanism 06 includes a limiting sleeve 61 and a limiting rod 62. The limiting sleeve 61 is fixed to the upper surface of the lower platform 02, and the upper end of the limiting rod 62 is fixed to the lower surface of the upper platform 01. A circular hole 64 is provided at the top of the limiting sleeve 61 so that the lower end of the limiting rod 62 can be inserted along the top of the limiting sleeve 61. The limiting rod 62 can slide longitudinally along the limiting sleeve. A limiting plate 63 is provided at the lower end of the limiting rod 62 so that the limiting rod 62 and the limiting plate 63 form an inverted "T" shape structure, thereby preventing the limiting rod 62 from being pulled out of the limiting sleeve 61. It can both support the connection and effectively play a limiting role. The upper platform 01 compresses the cylindrical helical compression spring, and the buffer distance is the distance from the limit rod 62 to the lower platform 02. When the upper platform 01 bounces up again, the limit sleeve 61 limits the limit rod 62, thereby realizing the buffering effect of the platform on the falling heavy object. The buffer rubber plate 07 and the cylindrical helical compression spring provide a double buffering effect for the entire buffer device.
[0030] In one embodiment, a buffer rubber plate 07 is provided on the upper surface of the upper platform 01. When a heavy object falls on the upper platform 01, the buffer rubber plate 07 provides the first layer of cushioning and protects the upper platform 01.
[0031] In one embodiment, to better achieve the buffering effect, the buffer mechanism 03 is evenly distributed along the four edges of the upper platform 01 and the lower platform 02.
[0032] In one embodiment, the present invention provides a belt conveyor, including a vertical counterweight buffer device for the belt conveyor.
[0033] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.
Claims
1. A vertical counterweight buffer device for a belt conveyor, characterized in that: It includes an upper platform, a lower platform located directly below the upper platform, and a buffer mechanism located between the upper platform and the lower platform; an upper positioning sleeve is fixedly installed on the lower surface of the upper platform, a lower positioning sleeve is fixedly installed on the upper surface of the lower platform, the upper end of the buffer mechanism is connected to the upper positioning sleeve, and the lower end of the buffer mechanism is connected to the lower positioning sleeve.
2. The vertical counterweight buffer device for belt conveyors according to claim 1, characterized in that: The buffer mechanism uses a cylindrical helical compression spring.
3. The vertical counterweight buffer device for belt conveyors according to claim 1 or 2, characterized in that: A limiting mechanism is also provided between the upper platform and the lower platform.
4. The vertical counterweight buffer device for belt conveyors according to claim 3, characterized in that: The limiting mechanism includes a limiting sleeve and a limiting rod; the limiting sleeve is fixed to the upper surface of the lower platform, the upper end of the limiting rod is fixed to the lower surface of the upper platform, the lower end of the limiting rod is inserted along the top of the limiting sleeve, and the limiting rod can slide longitudinally along the limiting sleeve. The lower end of the limiting rod is provided with a limiting plate to prevent the limiting rod from being pulled out of the limiting sleeve.
5. The vertical counterweight buffer device for belt conveyors according to claim 4, characterized in that: The upper surface of the platform is provided with a buffer rubber plate.
6. The vertical counterweight buffer device for belt conveyors according to claim 4, characterized in that: The limiting mechanisms are distributed at the four corners of the upper and lower platforms.
7. The vertical counterweight buffer device for belt conveyors according to claim 1, characterized in that: The buffer mechanism is evenly distributed along the four edges of the upper and lower platforms.
8. A belt conveyor, characterized in that: Includes the vertical counterweight buffer device for belt conveyors as described in any one of claims 1-7.