A special lifting device for railway steel coil transport frame

Abstract

The present invention discloses a special sling for a railway steel coil transport seat frame, comprising: a clamp, the clamp comprising two clamp arms, the two clamp arms are connected in opening and closing under the drive of a power component; a sling body, the sling body is mounted on at least one of the clamp arms and fixedly connected to the clamp arms, and a fork ruler is provided at one end of the sling body away from the clamp arm; the sling body approaches or moves away from a steel coil conveying seat under the drive of the clamp, so that the fork ruler is inserted into or removed from a preset position of the steel coil conveying seat. The automatic hooking and unhooking of the steel coil conveying seat is realized through the cooperation of the sling body and the clamp, avoiding the problems of high work intensity, high operation risk and low work efficiency caused by manual unhooking, thereby improving work efficiency, reducing operation risk and reducing work intensity.

Description

Technical Field

[0001] The invention belongs to the technical field of steel coil conveying auxiliary equipment, and in particular relates to a special hanger for a railway steel coil transport frame. Background Art

[0002] During the transportation of steel coils, when the railway gantry crane has completed unloading the hot coils, the steel frames on the train need to be lifted out and recycled. Currently, manual operations are mostly used. During the lifting process, at least four people are required to cooperate, two people are hooking in the carriage, and the other two are unhooking on the ground. Each time the train enters the port, there are 25 carriages on a single track, and each carriage has an average of 2 steel frames. It takes an average of 8 minutes to lift out a steel frame.

[0003] However, this manual operation method has great safety hazards. First, it requires frequent getting on and off the car to hook and there is no special ladder in the car, which can easily cause people to fall and get injured. Second, due to obstruction of vision during operation, the gantry crane driver cannot pay attention to the position of the workers in the car in real time, which can easily cause squeezing accidents. Third, the overall operation process is cumbersome and the work efficiency is low. Summary of the invention

[0004] The object of the present invention is to solve at least one of the problems existing in the above-mentioned prior art, and this object is achieved through the following technical solution.

[0005] The present invention provides a special lifting device for a railway steel coil transport frame, comprising:

[0006] A clamp, the clamp comprising two clamp arms, the two clamp arms being connected in an open and closed manner under the drive of a power component;

[0007] A sling body, the sling body is mounted on at least one of the clamping arms and is fixedly connected to the clamping arm, and a fork ruler is provided at one end of the sling body away from the clamping arm;

[0008] The hanger body is driven by the clamp to move closer to or farther from the steel coil conveying seat so that the fork ruler can be inserted into or removed from the preset position of the steel coil conveying seat.

[0009] During the hoisting process of the steel coil conveyor seat, first fix the sling body on the clamp arm, then lower the sling into the car, clamp the clamp so that the fork ruler on the sling body is inserted into the steel coil conveyor seat; loosen the clamp so that the sling is firmly hooked on the conveyor seat; lift out of the car, and then place the conveyor seat in the designated position, and clamp the clamp to complete an operation process after unhooking. In this way, the automatic hooking and unhooking of the steel coil conveyor seat is realized through the cooperation of the sling body and the clamp, avoiding the problems of high work intensity, high operation risk and low work efficiency caused by manual unhooking, thereby improving work efficiency, reducing operation risk and reducing work intensity.

[0010] Furthermore, it also includes a clamping ring, one end of which is fixedly connected to the sling body, and the other end of which is fixedly connected to the clamping arm.

[0011] Furthermore, the sling body comprises a first sling arm, a second sling arm and a connecting arm, the fork ruler is fixedly connected to the connecting arm, and the clamping ring is fixedly connected to the first sling arm and / or the second sling arm.

[0012] Furthermore, the first suspension arm, the second suspension arm and the connecting arm form a triangular structure.

[0013] Furthermore, there are two fork rulers, and the two fork rulers are respectively arranged at two bottom corners of the triangular structure.

[0014] Furthermore, the clamping ring is installed at the top corner of the triangular structure.

[0015] Furthermore, the length of the first boom is greater than the length of the second boom.

[0016] Furthermore, there are two hanger bodies, and the two hanger bodies are respectively mounted on the clamping arms in a one-to-one correspondence.

[0017] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a specific implementation mode of the special lifting device provided by the present invention;

[0019] Figure 2-Figure 4 for Figure 1 Projection views of the special sling shown in various planes.

[0020] Figure 5 for Figure 1 A schematic diagram of the structure of a clamping ring in a special lifting device shown;

[0021] Figure 6-Figure 8 for Figure 5 Projection views of the retaining ring shown in various planes.

[0022] Description of reference numerals:

[0023] 100-lifting device body 101-first lifting arm 102-second lifting arm 103-connecting arm

[0024] 200-Fork Ruler

[0025] 300-Snap ring DETAILED DESCRIPTION

[0026] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0027] Please refer to Figure 1-4 , Figure 1 A structural schematic diagram of a specific implementation mode of the special lifting device provided by the present invention; Figure 2-Figure 4 for Figure 1 Projection views of the special sling shown in various planes.

[0028] In a specific embodiment, the special lifting device provided by the present invention is used for a railway steel coil transport frame, so that it can cooperate with the existing horizontal coil clamp to realize automatic detachment and hanging of the steel frame, and realize smooth lifting without collision after the steel frame is lifted, ultimately realizing the economic investment brought by the non-personnel participation in the operation, optimizing the operation process, and eliminating the unsafe factors in the operation.

[0029] The special sling includes a clamp and a sling body 100, the clamp includes two clamp arms, and the two clamp arms are connected to open and close under the drive of a power component; the sling body 100 is installed on at least one of the clamp arms and fixedly connected to the clamp arm, and a fork ruler 200 is provided at one end of the sling body 100 away from the clamp arm; the sling body 100 is driven by the clamp to approach or move away from the steel coil conveying seat so that the fork ruler 200 can be inserted into or removed from the preset position of the steel coil conveying seat.

[0030] Among them, the clamp is specifically an existing horizontal coil clamp, and its structure and working principle are the same as those in the prior art, which will not be described in detail here.

[0031] Further, it also includes a snap ring, such as Figure 5-8 As shown, one end of the clamp is fixed to the sling body 100, and the other end is fixed to the clamp arm. During the manufacturing process of the sling, the clamp is fixed to the lower part of the clamp arm of the horizontal coil electric clamp by hard connection (for example, by 10.9 grade screws or welding, etc.), and the fork ruler 200 is inserted into the "V" groove triangular support plate of the steel coil conveying seat by opening the electric clamp, and the steel seat frame is lifted out by a gantry crane, and the automatic hook removal is realized by clamping the clamp.

[0032] In order to improve structural stability and adapt to the structure of the steel coil conveyor seat, the sling body 100 includes a first sling arm 101, a second sling arm 102 and a connecting arm 103, the fork scale 200 is fixedly connected to the connecting arm 103, and the retaining ring is fixedly connected to the first sling arm 101 and / or the second sling arm 102.

[0033] The first suspension arm 101, the second suspension arm 102 and the connecting arm 103 form a triangular structure so as to have good structural strength in a space as small as possible.

[0034] There are two fork rulers 200 , which are respectively arranged at two bottom corners of the triangular structure, and the clamping ring 300 is installed at the top corner of the triangular structure.

[0035] The sling is mainly subjected to shear force. The "V" groove triangle bracket of the steel coil conveying seat is 150mm long. Therefore, the length of the fork ruler 200 is about 200mm. The fork ruler 200 and the main load-bearing surface adopt through-type double-sided welding technology, so that the fork ruler 200 is subjected to the lever prying force to offset part of the shear force and increase the force strength. The sling is subjected to the upward pulling force of the hook and the weight of the steel coil conveying seat and the downward force of the sling's own weight. The force of the steel coil conveying seat acts at the center, and the deadweight of the sling acts on the center of gravity of the sling. The cross section of the vertical section of the sling is mainly subjected to tensile force. The tensile stress is equal to the gravity of the sling divided by the cross-sectional area. The yield strength of the sling is divided by the tensile stress, which is a safety factor of 7. The sling plate is 20mm thick. Because the weight of the sling is 0.685t<the load weight of the sling is 2.5t, the sling can fully bear the load of the steel frame.

[0036] Furthermore, the length of the first boom 101 is greater than the length of the second boom 102. For example, the length of the second boom 102 on the side close to the driver's cab is 800 mm, and the length of the first boom 101 on the opposite side is 950 mm, with a difference of 150 mm between the two arms. By using the unequal booms, a slightly inclined hoisting frame is formed to achieve smooth hoisting and stacking of the steel frame without collision.

[0037] In order to bear a larger lifting force and avoid overturning, there are two hoist bodies 100, and the two hoist bodies 100 are respectively installed on the clamping arms in a one-to-one correspondence. Specifically, when the steel frame is used, an open car often uses two steel bases (i.e., steel coil conveying bases) or three steel bases, and a 60t, 61t general open car or a 70t general open car is selected according to the load weight. In order to ensure that the train will not have longitudinal displacement and overturning when running under load and no additional reinforcement is performed on the steel coil base, the block welded on the side panel of the steel frame is pressed against the vehicle side wall to strengthen the inclined iron. In order to avoid damage caused by scratching the side of the car during the lifting operation, the hoist is designed as an unequal-arm hoist. The steel frame weighs 0.685t, the center of gravity is 115mm away from the vehicle bottom plate, the V-groove bottom plate is 445mm wide, and the bottom plate is 8mm thick.

[0038] In the above specific implementation, during the hoisting process of the steel coil conveyor seat, the sling body 100 is first fixed on the clamp arm of the clamp, and then the sling is lowered into the carriage, the clamp is clamped so that the fork ruler 200 on the sling body 100 is inserted into the steel coil conveyor seat; the clamp is loosened so that the sling is firmly hooked on the conveyor seat; it is lifted out of the carriage, and then the conveyor seat is placed in a designated position, and an operation process is completed after the clamp is unhooked. In this way, the automatic hooking and unhooking of the steel coil conveyor seat is realized through the cooperation of the sling body 100 and the clamp, avoiding the problems of high work intensity, high operation risk and low work efficiency caused by manual unhooking, thereby improving work efficiency, reducing operation risk and reducing work intensity. Moreover, production practice has proved that after adopting this sling, the average annual cost savings = monthly salary × labor savings × 12 = 3,000 × 4 × 12 = 144,000 yuan, and the average time saved per column = number of bases × (average operating time before improvement - average operating time after improvement) = 100 × (8-3) = 500 minutes, which completely eliminates the safety hazards of squeezing, falling and other operations.

[0039] Although the preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0040] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A special lifting device for railway steel coil transport frame, characterized in that: include: A clamp, the clamp comprising two clamp arms, the two clamp arms being connected in an open and closed manner under the drive of a power component; A sling body, wherein there are two sling bodies, the two sling bodies are respectively mounted on the clamping arms in a one-to-one correspondence and are fixedly connected to the clamping arms, and a fork ruler is provided at one end of the sling body away from the clamping arm; The sling body comprises a first sling arm, a second sling arm and a connecting arm, wherein the first sling arm, the second sling arm and the connecting arm form a triangular structure, and the fork rulers are two and fixed to the connecting arm, and the two fork rulers are respectively arranged at two bottom corners of the triangular structure; The hanger body is driven by the clamp to move closer to or farther from the steel coil conveying seat so that the fork ruler can be inserted into or removed from the preset position of the steel coil conveying seat.

2. The special lifting device according to claim 1, characterized in that: The length of the first boom is greater than the length of the second boom.

3. The special lifting device according to claim 2, characterized in that: It also includes a clamping ring, one end of which is fixedly connected to the sling body, and the other end of which is fixedly connected to the clamping arm.

4. The special lifting device according to claim 3, characterized in that: The clamping ring is fixedly connected to the first suspension arm and / or the second suspension arm.

5. The special lifting device according to claim 4, characterized in that: The clamping ring is installed at the top corner of the triangular structure.

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