A safe monkey car with rope support wheel collision protection

Abstract

The present invention discloses a safe monkey car with a rope support wheel collision protection, comprising a monkey car body, wherein the monkey car body is divided into an upper monkey car section and a lower monkey car section, wherein the upper monkey car section is provided with a rope holding device connected to a steel wire rope, and the upper monkey car section and the lower monkey car section are connected via a collision protection device; the collision protection device comprises a flexible connection structure and a rigid connection structure that simultaneously connect the upper monkey car section and the lower monkey car section, and the collision protection device has two states: a normal operating state and a collision protection state; in the normal operating state, the rigid connection structure is in a connected state, the rigid connection structure is subjected to force, and the flexible connection structure is not subjected to force; in the collision protection state, the rigid connection structure is in an invalid state, the rigid connection structure is not subjected to force, and the flexible connection structure is subjected to force. The present invention can prevent the monkey car from swinging significantly during operation and directly colliding with the rope support wheel of the steel wire rope, thereby playing a role in protecting the operation of the monkey car and achieving a safe protection effect.

Description

Technical Field

[0001] The invention relates to the technical field of underground coal mine vehicles, in particular to a safety monkey car with rope support wheel collision protection. Background Art

[0002] Monkey carts are a common cableway transportation method used underground in coal mines, often used in inclined shafts, inclined lanes, and large lanes within mining areas. They are primarily used by workers commuting to and from get off work underground. They reduce physical labor during commuting, improve worker efficiency, and save time. The cart's power is generated by a drive wheel located at one end of the laneway. This wheel drives a wire rope, which then passes through fixed support pulleys to form a closed transport circuit. A built-in rope grip connects to the wire rope, which drives the cart's rotation, transporting personnel from the boarding point to the designated disembarkation point.

[0003] However, in the process of riding the monkey car, due to the workers not riding properly, the monkey car shakes, the workers lean to one side during riding, causing the monkey car's center of gravity to shift, and the monkey car passes through the turning position of the tunnel during operation. In special circumstances, the monkey car will swing left and right to a certain extent during operation. However, when the monkey car swings significantly, there is a possibility that the monkey car will directly collide with the wire rope support wheel, and the support wheel will prevent the monkey car from moving forward along the wire rope. At this time, the workers will not have time to activate the monkey car's emergency stop protection device, resulting in a direct collision between the monkey car and the wire rope support wheel. The support wheel directly prevents the monkey car from sliding. Under the direct tension of the wire rope, the monkey car and the personnel will use the support wheel as a support point, and the personnel on the monkey car will be directly thrown to the tunnel roof, resulting in casualties.

[0004] Therefore, there is an urgent need for a safe monkey car with rope support wheel collision protection to improve the safety and stability of the monkey car during operation, and thus provide strong support and guarantee for the life safety of workers riding the monkey car. Summary of the Invention

[0005] In order to solve the problems in the prior art, the present invention provides a safety monkey car with rope support wheel collision protection.

[0006] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0007] A safe monkey car with a rope support wheel collision protection comprises a monkey car body, wherein the monkey car body is divided into an upper section and a lower section, the upper section is provided with a rope holding device connected to a steel wire rope, and the lower section is provided with a seat device; the upper section and the lower section are connected by a collision protection device; the position of the collision protection device substantially corresponds to the rope support wheel;

[0008] The collision protection device includes a flexible connection structure and a rigid connection structure that simultaneously connect the upper section and the lower section of the monkey car. The collision protection device has two states: a normal operating state and a collision protection state, wherein:

[0009] In normal operation, the rigid connection structure is in a connected state, the upper section of the monkey car and the lower section of the monkey car are rigidly connected through the rigid connection structure, the rigid connection structure is stressed, and the flexible connection structure is not stressed;

[0010] In the collision protection state, the rigid connection structure is in a failure state, and the upper section and the lower section of the monkey car form a flexible connection through the flexible connection structure. The rigid connection structure is not subjected to stress, while the flexible connection structure is subjected to stress.

[0011] Furthermore, the deployed length of the flexible connection structure is greater than the vertical length of the rigid connection structure; in normal operation, the flexible connection structure is in a retracted state; in collision protection state, the flexible connection structure is in an deployed state.

[0012] Furthermore, the main body of the monkey car includes a boom, which is divided into an upper boom section and a lower boom section. The upper end of the upper boom section is provided with a rope holding device connected to the wire rope, and the lower boom section is provided with a seat device; the upper boom section and the lower boom section are connected by the collision protection device.

[0013] Furthermore, the flexible connection structure is located at the center of the boom, and the rigid connection structure surrounds the outside of the flexible connection structure.

[0014] Furthermore, the flexible connection structure is a steel wire rope or a steel lifting ring chain; the upper section of the boom and the lower section of the boom are provided with fixing caps at opposite end positions, and both ends of the steel wire rope or the steel lifting ring chain are respectively connected to the corresponding fixing caps.

[0015] Furthermore, the steel wire ropes or steel lifting chain are arranged in two or more rows.

[0016] Furthermore, the rigid connection structure is composed of a plurality of circumferentially distributed protection plates, and the protection plates are welded to the upper section and the lower section of the boom.

[0017] Furthermore, the protective sheet is a vertically extending long sheet structure.

[0018] Furthermore, the suspension rod is cylindrical, and the cross section of the protection sheet is an arc-shaped structure consistent with the outer circle of the suspension rod.

[0019] Furthermore, the protective sheet is made of medium manganese steel or aluminum alloy.

[0020] Beneficial effects of the present invention:

[0021] 1. The present invention divides the monkey car body into an upper section and a lower section, which are connected by a collision protection device, thereby increasing the safety factor when the monkey car collides with the wire rope supporting wheel, thereby increasing the safety, reliability and insurance of the monkey car.

[0022] During normal use of the monkey car, it is in normal operating state, and the collision protection device plays the role of normal connection of the boom.

[0023] When the monkey car collides with the wire rope support pulley due to its large-scale shaking, the wire rope pulley will act as a fixed fulcrum to continuously lift the monkey car and the personnel. The rigid connection structure on the collision protection device will break and fail under the overall mass of the monkey car and the personnel, and the collision protection device will take effect. After the rigid connection structure breaks, the flexible connection structure in the collision protection device will automatically extend under the gravity of the monkey car and the personnel, playing the role of connecting the monkey car as a whole. Because the flexible connection structure effectively connects the overall structure of the monkey car, and the flexible connection structure itself is a flexible structure, it can bend flexibly at the position of the support pulley, thereby avoiding the original monkey car boom being blocked by the support pulley and the monkey car and the personnel being instantly lifted up under the tension of the wire rope, thereby avoiding the accident of the personnel being instantly thrown to the top of the tunnel.

[0024] 2. The present invention can avoid personal injury accidents caused by direct collision between the large swing of the monkey car during operation and the supporting wheel of the wire rope, thereby playing a role and effect of safety protection for the operation of the monkey car. In addition, the overall structure of the present invention is relatively scientific and does not require any form of modification to the original monkey car operation cableway, which greatly saves costs.

[0025] 3. The length of the flexible connection structure after being stretched out in the present invention is greater than the length of the rigid connection structure itself. Therefore, the stretching effect of the flexible connection structure directly reduces the height of the monkey car, making it easier for people to leave the monkey car and take emergency shelter. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic structural diagram of the safety monkey car of the present invention;

[0027] Figure 2 is a schematic diagram of the collision protection device of the present invention;

[0028] Figure 3 This is a schematic diagram of the arrangement of the steel wire ropes for the safety monkey car of the present invention;

[0029] Figure 4 This is a schematic diagram of the first direct collision between the safety monkey car of the present invention and the rope support wheel;

[0030] Figure 5 This is a schematic diagram of the protective plate breaking after the safety monkey car of the present invention collides with the rope support wheel;

[0031] Figure 6 This is a schematic diagram of the safety monkey car of the present invention with the steel lifting ring chain fully extended.

[0032] Explanation of the numbers in the figure: 1. Collision protection device; 2. Hanging rod; 3. Chair seat; 4. Foot pedal; 5. Rope holding device; 6. PVC hose; 7. Protective sheet; 8. Steel lifting ring chain; 9. Fixing cap; 10. Steel wire rope; 11. Rope support pulley.

[0033] The accompanying drawings are for illustrative purposes only and are not to be construed as limitations on this patent. To better illustrate this embodiment, some components of the accompanying drawings may be omitted, enlarged, or reduced in size, and do not represent the actual dimensions of the product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted from the accompanying drawings. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0035] like Figures 1 to 6 As shown, this embodiment provides a safe monkey car with a rope support pulley collision protection, including a monkey car body, which is divided into an upper monkey car section and a lower monkey car section. The upper monkey car section is provided with a rope holding device 5 connected to a wire rope 11, and the lower monkey car section is provided with a seat device. The upper monkey car section and the lower monkey car section are connected by the collision protection device 1, which increases the safety factor of the monkey car in the event of a collision between the monkey car and the wire rope support pulley, thereby increasing the safety, reliability and security of the monkey car.

[0036] Specifically in this embodiment, the main body of the monkey car includes a boom 2, which is divided into an upper boom section and a lower boom section. The upper end of the upper boom section is provided with a rope holding device 5 connected to the wire rope, and the lower boom section is provided with a seat device, which includes a seat 3 and a foot pedal 4.

[0037] The lower section of the boom is also sleeved with a PVC hose 6, which has flame retardant and anti-static effects. When workers ride the monkey car normally, they can hold the flame retardant and anti-static PVC hose 6 tightly to prevent direct contact with the metal part of the boom 2.

[0038] The upper boom section and the lower boom section are connected via a collision protection device 1. The position of the collision protection device 1 substantially corresponds to the rope support pulley 11.

[0039] The collision protection device includes a flexible connection structure and a rigid connection structure that simultaneously connect the upper section of the boom and the lower section of the boom. The collision protection device has two states: a normal operating state and a collision protection state, wherein:

[0040] In normal operation, the rigid connection structure is in a connected state, the upper section of the boom and the lower section of the boom are rigidly connected through the rigid connection structure, the rigid connection structure is stressed, and the flexible connection structure is not stressed;

[0041] In the collision protection state, the rigid connection structure is in a failure state, and the upper section of the boom and the lower section of the boom form a flexible connection through the flexible connection structure. The rigid connection structure is not subjected to stress, while the flexible connection structure is subjected to stress.

[0042] At the same time, the expanded length of the flexible connection structure is greater than the vertical length of the rigid connection structure; in normal operation, the flexible connection structure is in a retracted state; in collision protection state, the flexible connection structure is in an expanded state, that is, after the rigid connection structure breaks, the flexible connection structure will immediately expand rapidly from the contracted state to its full length to exert its own load-bearing function.

[0043] In this embodiment, the flexible connection structure is located at the center of the boom, and the rigid connection structure surrounds the outside of the flexible connection structure.

[0044] The flexible connection structure can be a steel wire rope or a steel hoisting chain. In this embodiment, the flexible connection structure is preferably a steel hoisting chain 8, which is provided in two rows and made of Q235 steel. The length of the steel hoisting chain after extension can reach 400 mm.

[0045] The upper and lower sections of the boom are provided with fixing caps at opposite end positions, and the two ends of the steel hoisting chain 8 are respectively connected to the corresponding fixing caps 9. The fixing caps 9 firmly connect the steel hoisting chain 8 to the upper and lower sections of the boom, forming an active and effective support for the hoisting ring 8.

[0046] The load-bearing capacity of the two rows of steel lifting chain is greater than 1000 N, which can meet the overall connection and support effect of the monkey car and personnel.

[0047] The rigid connection structure consists of two protective plates 7, which are long, vertically extending strips. These plates are welded to the upper and lower sections of the boom. In this embodiment, the boom 2 is cylindrical, and the cross-section of the protective plates 7 is an arc-shaped structure that matches the outer diameter of the boom 2.

[0048] The protective sheet 7 is made of medium manganese steel or aluminum alloy, has a thickness of 2.5 mm, a length of 250 mm, an inner diameter of 70 mm, and a distance of 200 mm between the upper end of the protective sheet 7 and the cable holding device 5.

[0049] During normal operation, the protective sheet 7 can withstand a maximum vertical force of 1000 N, meeting the requirements of the monkey car's normal passenger operation. At a force angle of 5°, the protective sheet 7 will break only when the support pulley is used as a fulcrum and the external breaking force exceeds 500 N. When the protective sheet breaks, it first breaks at the collision point, followed by a complete fracture of the entire section.

[0050] The working principle of the present invention is as follows:

[0051] During normal use of the monkey car, it is in normal operating state, and the collision protection device plays the role of normal connection of the boom.

[0052] When the monkey car swings significantly during operation and then collides with the rope pulley 12, the collision protection state takes effect. At this time, the rope pulley 12 is subjected to the traction of the wire rope 11, and the rope pulley 12 can serve as a fixed fulcrum to continuously raise the position of the monkey car and the personnel. The protective plate 7 on the collision protection device 1, under the overall mass of the monkey car and the personnel, when the angle of the protective plate 7 bending is 5 °, and when the breaking force is greater than 500 N, the protective plate 7 will be broken with the rope pulley 12 as the fulcrum. After the protective plate 7 breaks, the steel ring chain 8 inside the collision protection device will automatically stretch out under the gravity of the monkey car and the personnel, playing a role in connecting the whole of the monkey car. At this time, the contact mode of the monkey car and the rope pulley 12 collision point changes from the initial hard contact with the suspension rod 2 to flexible contact. Since the lifting ring 8 effectively connects the overall structure of the monkey car, and the steel lifting ring chain 8 itself is a chain structure, it can bend at the position of the rope pulley 12, thereby avoiding the original monkey car boom 2 being blocked by the rope pulley 12, resulting in casualties caused by people being instantly thrown to the top plate.

[0053] Furthermore, because the two rows of pre-set steel lifting rings can be extended to a length of 400 mm, a distance greater than the length of the protective sheet itself, the extension of the steel lifting rings directly reduces the vertical height of the monkey car from the roadway floor, making it easier for personnel to dismount and take emergency shelter. Furthermore, after disembarking, personnel can also promptly activate the monkey car's emergency stop system, allowing for prompt and effective accident response.

[0054] The present invention can avoid personal injury accidents caused by direct collision between the large-scale swing of the monkey car during operation and the rope support wheel of the wire rope, thereby playing a role and effect of safety protection for the operation of the monkey car. In addition, the overall structure of the present invention is relatively scientific and does not require any form of modification to the original monkey car operation cableway, which greatly saves costs.

[0055] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

[0056] If words such as "first" and "second" are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, the above words have no special meaning.

[0057] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0058] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

Claims

1. A safe monkey car with rope support wheel collision protection, comprising a monkey car body, characterized in that: The main body of the monkey car is divided into an upper section and a lower section. The upper section is provided with a rope holding device connected to the wire rope, and the lower section is provided with a seat device. The upper section and the lower section are connected by a collision protection device. The position of the collision protection device basically corresponds to the rope supporting wheel. The collision protection device includes a flexible connection structure and a rigid connection structure that simultaneously connect the upper section and the lower section of the monkey car. The collision protection device has two states: a normal operating state and a collision protection state, wherein: In normal operation, the rigid connection structure is in a connected state, the upper section of the monkey car and the lower section of the monkey car are rigidly connected through the rigid connection structure, the rigid connection structure is stressed, and the flexible connection structure is not stressed; In the collision protection state, the rigid connection structure is in a failure state, and the upper section of the monkey car and the lower section of the monkey car form a flexible connection through the flexible connection structure. The rigid connection structure is not stressed, while the flexible connection structure is stressed. The deployed length of the flexible connection structure is greater than the vertical length of the rigid connection structure; in normal operation, the flexible connection structure is in a retracted state; in collision protection state, the flexible connection structure is in an deployed state; The main body of the monkey car includes a boom, which is divided into an upper boom section and a lower boom section. The upper end of the upper boom section is provided with a rope holding device connected to a steel wire rope, and the lower boom section is provided with a seat device. The upper boom section and the lower boom section are connected by the collision protection device. The flexible connection structure is a steel wire rope or a steel hoisting ring chain; the upper section of the boom and the lower section of the boom are provided with fixing caps at opposite end positions, and the two ends of the steel wire rope or the steel hoisting ring chain are respectively connected to the corresponding fixing caps.

2. The safety monkey car with rope support wheel collision protection according to claim 1 is characterized in that: The flexible connection structure is located at the center of the boom, and the rigid connection structure surrounds the outside of the flexible connection structure.

3. The safety monkey car with rope support wheel collision protection according to claim 1 is characterized in that: The steel wire ropes or steel lifting ring chains are arranged in two or more rows.

4. The safety monkey car with rope support wheel collision protection according to claim 1 is characterized in that: The rigid connection structure is composed of a plurality of circumferentially distributed protection plates, which are welded to the upper section and the lower section of the boom.

5. The safety monkey car with rope support wheel collision protection according to claim 4 is characterized in that: The protective sheet is a vertically extending long sheet structure.

6. The safety monkey car with rope support wheel collision protection according to claim 5, characterized in that: The suspension rod is cylindrical, and the cross section of the protection sheet is an arc-shaped structure consistent with the outer circle of the suspension rod.

7. The safety monkey car with rope support wheel collision protection according to claim 6, characterized in that: The protective sheet is made of medium manganese steel or aluminum alloy.

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