Vertical shaft lifting anti-over-release buffering device
By combining a scissor lift mechanism and spring system with textile filler, the design solves the problems of limited buffering effect and easy aging of components during vertical shaft hoisting, achieving multi-level buffering protection, improving safety and stability, and reducing operating costs.
Patent Information
- Application Number
- CN202520235085.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-14
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-14
AI Technical Summary
The existing vertical shaft hoisting anti-over-release buffer device has limited buffering effect, cannot automatically adjust according to the impact force, and the components are prone to fatigue and aging, affecting safety and reliability.
By combining a scissor mechanism and a spring system with textile filling, multi-layered cushioning protection is achieved. The cushioning force is automatically adjusted by compression and tension springs. The combined design of the scissor mechanism and spring system with textile filling provides multi-layered cushioning protection.
It improves the safety and stability of the vertical shaft hoisting process, reduces the risk of severe vibration and secondary injury, lowers operating costs and maintenance difficulty, and improves work efficiency.
Smart Images
Figure CN223646094U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to mine transportation technical field, more specifically, it is especially related to a vertical shaft hoist anti-over-travel buffer device. BACKGROUND
[0002] The vertical shaft hoist anti-over-travel buffer device is a safety device specially designed for use in mine shafts or similar vertical transportation systems to prevent the cage (i.e., the lifting container used to transport personnel and materials) from over-traveling (i.e., exceeding the predetermined travel) during the lifting process. When the cage over-travels due to mechanical failure, control system malfunction, or other unexpected reasons, the buffer device can effectively absorb and mitigate the impact force of the cage, thereby protecting the personnel, goods inside the cage, and the cage itself from damage. When the cage over-travels accidentally at the top of the shaft, the anti-over-travel buffer device installed at the top of the shaft will play a role in absorbing and buffering the impact energy of the cage. This type of buffer device usually adopts a mechanical structure design, aiming to effectively reduce the impact force and protect the safety of the system and passengers.
[0003] Based on the above, the existing anti-over-travel buffer device, although it can play a certain buffering role in dealing with the over-travel accident of the cage when it is lifted to the top, has some obvious drawbacks in its mechanical structure design. First, the buffering effect of the traditional device is limited, and it can only provide a single level of energy absorption, which is difficult to fully mitigate the high-intensity impact, and may cause the personnel inside the cage to feel significant vibration or impact, increasing the safety risk. Second, the structure of this type of device is relatively fixed and lacks flexibility, and it cannot automatically adjust the buffering force according to the actual impact force, resulting in inconsistent performance in different situations and affecting the buffering effect. In addition, the existing equipment mostly uses simple springs or hydraulic systems, and these components are prone to fatigue, aging, and other problems after long-term use, not only requiring frequent maintenance, but also possibly failing to play its due protective role in time once a fault occurs, thereby reducing the reliability and safety of the entire system. UTILITY MODEL CONTENTS
[0004] To solve the above technical problems, the utility model provides a vertical shaft hoist anti-over-travel buffer device to solve the problem of the cage being violently shaken or damaged due to over-traveling and touching the top of the shaft during the vertical shaft hoist.
[0005] The purpose and effect of the vertical shaft hoist anti-over-travel buffer device of the utility model are achieved by the following specific technical means:
[0006] A vertical shaft hoist anti-over-travel buffer device, comprising:
[0007] Transportation vertical shaft;
[0008] The lifting and transporting cage is of a box structure, and the left and right outer walls of the lifting and transporting cage are slidingly connected to the left and right inner walls of the transporting shaft;
[0009] The impact receiving plate is of a rectangular plate structure, and the lower end surface of the impact receiving plate is movably connected to the upper end surface of the lifting and transporting cage, and the left and right outer walls of the impact receiving plate are slidingly connected to the left and right inner walls of the transporting shaft;
[0010] The trapezoidal slide rails are two in total, and the two trapezoidal slide rails are arranged on the upper end surface of the impact receiving plate;
[0011] The lower end sliding hinges are two in total, and the two lower end sliding hinges are hinge structures with trapezoidal rail grooves formed in the lower end surfaces, and the lower end sliding hinges are slidingly connected to the upper end surface of the impact receiving plate through the trapezoidal slide rails;
[0012] The buffer top plate is of a rectangular plate structure, and the buffer top plate is arranged above the impact receiving plate, the left and right outer walls of the buffer top plate are slidingly connected to the left and right inner walls of the transporting shaft, and two trapezoidal slide rails are arranged on the lower end surface of the buffer top plate;
[0013] The upper end sliding hinges are two in total and have the same features as the lower end sliding hinges, and the upper end sliding hinges are slidingly connected to the lower end surface of the buffer top plate through the trapezoidal slide rails;
[0014] The over-discharge buffer assembly is two in total, and the over-discharge buffer assembly is arranged on the upper end surface of the impact receiving plate and is arranged below the inner wall at the top end of the transporting shaft.
[0015] Further, the over-discharge buffer assembly comprises:
[0016] The first scissors levers are a plurality of in total, and the lower end portions of the lowermost first scissors levers are hingedly connected to the lower end sliding hinges;
[0017] The second scissors levers are a plurality of in total, the lower end portions of the lowermost second scissors levers are hingedly connected to the upper end surface of the impact receiving plate, and the plurality of first scissors levers and the second scissors levers jointly constitute a scissors mechanism.
[0018] Further, the over-discharge buffer assembly further comprises:
[0019] The first compression springs are two in total, and the front and rear end portions of the two first compression springs are fixedly arranged between the lower end sliding hinges and the impact receiving plate and between the upper end sliding hinges and the buffer top plate, respectively.
[0020] Further, the over-discharge buffer assembly further comprises:
[0021] Second compression spring, the second compression spring is shared two pieces, the upper and lower ends of the two second compression springs are vertically fixed between the adjacent center rotating shafts of the scissor mechanism composed of the first scissor lever and the second scissor lever.
[0022] Further, the over-discharge buffer assembly further comprises:
[0023] Buffered tension spring, the buffered tension spring is shared two pieces, the left and right ends of the two buffered tension springs are transversely fixed between the adjacent end rotating shafts of the scissor mechanism composed of the first scissor lever and the second scissor lever.
[0024] Further, the over-discharge buffer assembly further comprises:
[0025] Buffered textile filler, the buffered textile filler is a compressible block structure rich in textiles, the lower end surface of the buffered textile filler is fixedly arranged on the upper end surface of the buffer top plate, and the upper end surface of the buffered textile filler is fixedly arranged on the inner wall of the top of the transport shaft.
[0026] Compared with the prior art, the novel over-discharge buffer device has the following beneficial effects:
[0027] Firstly, the buffer device can effectively absorb and disperse impact energy when the cage is accidentally over-discharged by combining the scissor mechanism and the spring system. In particular, the application of the textile filler can provide additional buffer protection under the action of instantaneous impact force, ensuring that the personnel and goods in the cage and the cage structure itself are not damaged. This multi-level protection mechanism greatly improves the safety factor of the shaft operation and reduces the risk of accidents.
[0028] Secondly, the arrangement of the compression spring and the tension spring in the device enables automatic adjustment of the buffer force according to actual needs when facing different intensity impacts, thereby achieving more flexible and effective energy absorption. This not only helps to alleviate the huge pressure generated in the impact moment, but also ensures the stable deceleration of the cage, avoiding the violent vibration or secondary injury caused by hard impact, and improving the stability and reliability of the entire system.
[0029] Then, the novel over-discharge buffer device adopts a clever mechanical design, such as the application of the scissor mechanism, which has the characteristics of compact structure and small space occupation, facilitating installation in the existing shaft lifting system. At the same time, since the main components (such as springs, textile fillers, etc.) are all modular parts, they are easy to replace and maintain, reducing long-term operating costs while ensuring the continuous and efficient operation of the equipment. In addition, this design also helps to reduce downtime and improve work efficiency.
[0030] The utility model discloses have overcharge buffer subassembly design and improve the security and efficiency significantly. First, it provides enhanced security, through the combination of shear fork mechanism and spring system, effectively absorbs and disperses impact energy when the cage overcharges accidentally, ensures that the personnel, goods and own structure in the cage are not damaged. Secondly, the device shows efficient energy absorption and buffering performance, uses compression and extension spring to automatically adjust the buffering degree according to actual needs, ensures that the cage slows down stably, reduces the risk of violent vibration or secondary injury. Finally, the novel device has the characteristics of compact structure and easy maintenance, skillfully uses standardized parts such as spring and textile filler, not only easy to install in the existing system, but also reduces the long-term operating cost, simplifies the maintenance process, reduces the downtime and improves the work efficiency. BRIEF DESCRIPTION OF DRAWINGS
[0031] Figure 1 It is the structure schematic diagram of the whole of the utility model.
[0032] Figure 2 It is the structure schematic diagram of the main body of the utility model.
[0033] Figure 3 It is the structure schematic diagram of the front view of the overcharge buffer subassembly of the utility model.
[0034] Figure 4 It is the structure schematic diagram of the rear view of the overcharge buffer subassembly of the utility model.
[0035] Figure 5 It is the structure schematic diagram of the buffer textile filler of the utility model.
[0036] In the drawing, the corresponding relationship of component name and drawing number is as follows:
[0037] 1, first shear fork rod, 2, second shear fork rod, 3, first compression spring, 4, second compression spring, 5, buffer extension spring, 6, buffer textile filler, 7, transport vertical shaft, 8, lifting transport cage, 9, impact bearing plate, 10, trapezoidal slide rail, 11, lower end sliding hinge, 12, upper end sliding hinge, 13, buffer top plate. DETAILED DESCRIPTION
[0038] The embodiment of the utility model is further described in detail in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0039] Example one:
[0040] As shown in the accompanying drawings: Figure 1 To the accompanying drawings: Figure 5 As shown in the accompanying drawings:
[0041] The utility model provides a vertical shaft lifting overcharge prevention buffer device, comprising:
[0042] Transport shaft 7;
[0043] The lifting transport cage 8 has a box-like structure, and its left and right outer walls are slidably connected to the left and right inner walls of the transport shaft 7.
[0044] Impact bearing plate 9 is a rectangular plate structure. The lower end face of the impact bearing plate 9 is movably connected to the upper end face of the lifting transport cage 8, and the left and right outer walls of the impact bearing plate 9 are slidably connected to the left and right inner walls of the transport shaft 7.
[0045] There are two trapezoidal slide rails 10, which are set on the upper surface of the impact bearing plate 9.
[0046] The lower sliding hinge 11 consists of two pieces. The two lower sliding hinges 11 are hinge structures with trapezoidal track grooves on their lower end faces. The lower sliding hinges 11 are slidably connected to the upper end face of the impact bearing plate 9 via trapezoidal slide rails 10.
[0047] The buffer top plate 13 is a rectangular plate structure. The buffer top plate 13 is set above the impact bearing plate 9. The left and right outer walls of the buffer top plate 13 are slidably connected to the left and right inner walls of the transport shaft 7. Two trapezoidal slide rails 10 are set on the lower end face of the buffer top plate 13.
[0048] The upper sliding hinge 12 has two parts and the upper sliding hinge 12 has the same characteristics as the lower sliding hinge 11. The upper sliding hinge 12 is slidably connected to the lower end face of the buffer top plate 13 through the trapezoidal slide rail 10.
[0049] There are two over-release buffer components. The over-release buffer components are set on the upper end face of the impact bearing plate 9, and the entire over-release buffer components are set below the inner wall of the top of the transport shaft 7.
[0050] The over-discharge buffer component includes:
[0051] The first scissor bar 1 has several parts, and the lower end of the bottom first scissor bar 1 is hinged to the lower end sliding hinge 11.
[0052] The second scissor bar 2 consists of several parts. The lower end of the lowest second scissor bar 2 is hinged to the upper end face of the impact bearing plate 9. The several first scissor bars 1 and second scissor bars 2 together constitute the scissor mechanism. During use, when the lifting and transport cage 8 experiences an over-lifting accident due to unforeseen circumstances, the upper end of the lifting and transport cage 8 will impact the lower end face of the impact bearing plate 9. Since the first scissor bars 1 and second scissor bars 2 together constitute the scissor mechanism and are located on the upper end face of the impact bearing plate 9, the impact bearing plate 9 moves upward under the impact, causing the scissor mechanism to retract. Its function is to transmit the upward movement of the lifting and transport cage 8 during over-lifting as the retraction of the scissor mechanism composed of the first scissor bars 1 and second scissor bars 2.
[0053] The over-discharge buffer component also includes:
[0054] There are two first compression springs 3. The front and rear ends of the two first compression springs 3 are respectively fixed between the lower sliding hinge 11 and the impact bearing plate 9, and between the upper sliding hinge 12 and the buffer top plate 13. In use, the scissor mechanism retracts and drives the lower sliding hinge 11 to move to the right. Since the first compression spring 3 is a compression spring with elasticity, the rightward movement of the lower sliding hinge 11 is buffered by the elastic action of the first compression spring 3, thus having a certain buffering effect on the upward movement of the lifting and transporting cage 8.
[0055] The over-discharge buffer component also includes:
[0056] There are two second compression springs 4. The upper and lower ends of the two second compression springs 4 are vertically fixed between the adjacent central rotating shafts of the scissor mechanism formed by the first scissor bar 1 and the second scissor bar 2. In use, the scissor mechanism retracts, causing the distance between the adjacent central rotating shafts of the scissor mechanism to shorten. Since the second compression spring 4 is a compression spring with a certain elasticity, the movement of shortening the distance between the adjacent central rotating shafts plays a certain buffering role under the elastic action of the second compression spring 4, thereby having a certain buffering effect on the upward movement of the lifting and transporting cage 8.
[0057] The over-discharge buffer component also includes:
[0058] There are two buffer tension springs 5. The left and right end ring hooks of the two buffer tension springs 5 are horizontally fixed between the adjacent end shafts of the scissor mechanism formed by the first scissor bar 1 and the second scissor bar 2. In use, the contraction of the scissor mechanism causes the distance between the adjacent end shafts of the scissor mechanism to extend. Since the buffer tension spring 5 is a tension spring with a certain elasticity, the movement of the distance between the adjacent end shafts extending is buffered by the elastic action of the buffer tension spring 5, thus having a certain buffering effect on the upward movement of the lifting and transporting cage 8.
[0059] The over-discharge buffer component also includes:
[0060] The cushioning textile filler 6 is a compressible block structure rich in textiles. The lower end of the cushioning textile filler 6 is fixedly installed on the upper end of the cushioning top plate 13, and the upper end of the cushioning textile filler 6 is fixedly installed on the inner top wall of the transport shaft 7. During use, the lifting transport cage 8 is lifted and impacts the impact bearing plate 9, which in turn drives the cushioning top plate 13 to press the cushioning textile filler 6 upward. The textile filler inside the cushioning textile filler 6 can effectively absorb the instantaneous impact force during the impact and play a buffering role for the lifting transport cage 8, protecting the personnel and goods inside the lifting transport cage 8 as well as the lifting transport cage 8 itself from damage.
[0061] The specific usage and function of this first embodiment are as follows:
[0062] During use, if the lifting and transport cage 8 experiences an over-lifting accident due to unforeseen circumstances, the upper end of the lifting and transport cage 8 will impact the lower end face of the impact bearing plate 9. Since the first scissor bar 1 and the second scissor bar 2 together form a scissor mechanism located on the upper end face of the impact bearing plate 9, the impact bearing plate 9 moves upward under the impact, causing the scissor mechanism to retract. Its function is to transmit the upward movement of the lifting and transport cage 8 during over-lifting as the retraction of the scissor mechanism formed by the first scissor bar 1 and the second scissor bar 2. The retraction of the scissor mechanism causes the lower sliding hinge 11 to move to the right. Because the first compression spring 3 is a compression spring with elasticity, the rightward movement of the lower sliding hinge 11 is buffered by the elasticity of the first compression spring 3, thus providing a certain buffering effect on the upward movement of the lifting and transport cage 8. The retraction of the scissor mechanism shortens the distance between adjacent central rotating shafts of the scissor mechanism. Since the second compression spring 4 is a compression spring with elasticity... The second compression spring 4 has a certain degree of elasticity, which allows the movement of shortening the distance between adjacent central pivots to be buffered by the elasticity of the second compression spring 4. This, in turn, provides a certain buffering effect on the upward movement of the lifting transport cage 8. The contraction of the scissor mechanism causes the distance between adjacent end pivots of the scissor mechanism to lengthen. Since the buffer tension spring 5 is a tension spring with a certain degree of elasticity, the movement of lengthening the distance between adjacent end pivots is buffered by the elasticity of the buffer tension spring 5. This, in turn, provides a certain buffering effect on the upward movement of the lifting transport cage 8. The lifting transport cage 8 is lifted and impacts the impact bearing plate 9, which in turn causes the buffer top plate 13 to press upward against the buffer textile filling material 6. The textile filling material inside the buffer textile filling material 6 can effectively absorb the instantaneous impact force during the impact, thus buffering the lifting transport cage 8 and protecting the personnel and goods inside the lifting transport cage 8 as well as the lifting transport cage 8 itself from damage.
Claims
1. A vertical shaft hoisting anti-over-release buffer device, characterized in that: This type of vertical shaft hoisting over-release buffer device includes: Transport shaft (7); The lifting transport cage (8) is a box-shaped structure, and the left and right outer walls of the lifting transport cage (8) are slidably connected to the left and right inner walls of the transport shaft (7). Impact bearing plate (9), the impact bearing plate (9) is a rectangular plate structure, the lower end face of the impact bearing plate (9) is movably connected to the upper end face of the lifting transport cage (8), and the left and right outer walls of the impact bearing plate (9) are slidably connected to the left and right inner walls of the transport shaft (7). Trapezoidal slide rail (10), there are two trapezoidal slide rails (10), and the two trapezoidal slide rails (10) are set on the upper end face of the impact bearing plate (9); The lower sliding hinge (11) consists of two pieces. The two lower sliding hinges (11) are hinge structures with trapezoidal track grooves on their lower end faces. The lower sliding hinges (11) are slidably connected to the upper end face of the impact bearing plate (9) through trapezoidal slide rails (10). The buffer top plate (13) is a rectangular plate structure. The buffer top plate (13) is set above the impact bearing plate (9). The left and right outer walls of the buffer top plate (13) are slidably connected to the left and right inner walls of the transport shaft (7). Two trapezoidal slide rails (10) are set on the lower end face of the buffer top plate (13). The upper sliding hinge (12) has two parts and the upper sliding hinge (12) has the same characteristics as the lower sliding hinge (11). The upper sliding hinge (12) is slidably connected to the lower end face of the buffer top plate (13) through the trapezoidal slide rail (10). Over-release buffer assembly, there are two of them. The over-release buffer assembly is set on the upper end face of the impact bearing plate (9) and the entire over-release buffer assembly is set below the inner wall of the top of the transport shaft (7).
2. The vertical shaft hoisting over-release buffer device as described in claim 1, characterized in that: The over-discharge buffer component includes: The first scissor bar (1) has several parts, and the lower end of the bottom first scissor bar (1) is hinged to the lower end sliding hinge (11). The second scissor bar (2) consists of several parts. The lower end of the lowest second scissor bar (2) is hinged to the upper surface of the impact bearing plate (9). Several first scissor bars (1) and second scissor bars (2) together constitute the scissor mechanism.
3. The vertical shaft hoisting anti-over-release buffer device as described in claim 1, characterized in that: The over-discharge buffer component further includes: The first compression spring (3) consists of two pieces. The front and rear ends of the two first compression springs (3) are respectively fixed between the lower sliding hinge (11) and the impact bearing plate (9), and between the upper sliding hinge (12) and the buffer top plate (13).
4. The vertical shaft hoisting anti-over-release buffer device as described in claim 2, characterized in that: The over-discharge buffer component further includes: The second compression spring (4) consists of two pieces. The upper and lower ends of the two second compression springs (4) are vertically fixed between the adjacent central pivots of the scissor mechanism formed by the first scissor bar (1) and the second scissor bar (2).
5. The vertical shaft hoisting anti-over-release buffer device as described in claim 2, characterized in that: The over-discharge buffer component further includes: The buffer tension spring (5) consists of two pieces. The left and right end ring hooks of the two buffer tension springs (5) are horizontally fixed between the adjacent end shafts of the scissor mechanism formed by the first scissor bar (1) and the second scissor bar (2).
6. The vertical shaft hoisting over-release buffer device as described in claim 1, characterized in that: The over-discharge buffer component further includes: The cushioning textile filler (6) is a compressible block structure rich in textiles. The lower end face of the cushioning textile filler (6) is fixedly set on the upper end face of the cushioning top plate (13), and the upper end face of the cushioning textile filler (6) is fixedly set on the top inner wall of the transport shaft (7).