Electric shovel lifting rope protection device with shock-absorbing roller

Abstract

The utility model relates to a lifting steel rope protection device of an electric shovel with a shock-absorbing roller, comprising a lifting steel rope protection device frame, an upper guide roller, a lower guide roller and a guide roller fixing assembly. The lifting steel rope protection device frame is a rectangular frame composed of two longitudinal channel steel frames and a transverse upper connecting plate connecting the two longitudinal channel steel frames. The guide roller fixing assemblies are four, respectively composed of a fixing plate, a fixing bolt and a plurality of rubber shock-absorbing balls. The four guide roller fixing assemblies are respectively fixed at the four corners of the two longitudinal channel steel frames. The upper guide roller and the lower guide roller are arranged in the rectangular frame, and the roller shafts at both ends are respectively inserted into the rubber shock-absorbing balls of the four guide roller fixing assemblies. The frame installation bottom angles are also arranged at the two ends of the lower part of the rectangular frame. The utility model has the advantages of simple structure, effective reduction and elimination of the safety hazard of the lifting steel rope jumping out of the wheel groove of the sheave, and prevention of the problem of steel rope wire breakage and reduced service life.

Description

Technical Field

[0001] The utility model belongs to the technical field of open-pit mining electric shovel equipment, in particular to an electric shovel lifting rope protection device with a shock-absorbing roller. Background Art

[0002] When the WK-10B electric shovel is working, the lifting and lowering of the bucket must be completed by the traction of the lifting rope. Every time the lifting rope changes its direction of movement up and down, since the lifting rope is a flexible part, it will inevitably shake to a certain extent during operation, resulting in the following problems:

[0003] There is no wire rope protection device between the lifting wire rope and the cantilever sheave of the WK-10B electric shovel. When the electric shovel is in operation, the excessive vibration causes abnormal friction between the lifting wire rope and the sheave groove and drum groove of the sheave, causing the plastic coating on the surface of the lifting wire rope to be scratched. In severe cases, the lifting wire rope may break, shortening the service life of the lifting wire rope.

[0004] The lifting steel rope is affected by the supply and operational errors of the personnel on duty. Under the influence of the friction and impact force of the 60mm diameter lifting rope, the lifting rope will jump out of the wheel groove of the crown sheave, causing a production stoppage accident. The maintenance is extremely difficult and requires a large amount of manpower and auxiliary equipment such as cranes for emergency repairs, which not only increases the cost of maintenance work, but also causes a long period of downtime losses.

[0005] The impact force when the lifting rope shakes unexpectedly will cause damage to the push reduction box and safety guardrail. Utility Model Content

[0006] In order to solve the above problems, the utility model discloses a lifting rope protection device for an electric shovel with a shock-absorbing roller, the purpose of which is to eliminate the safety hazard of the lifting rope jumping out of the wheel groove of the crown sheave, to increase the service life of the lifting rope, to reduce the equipment failure rate, to improve production efficiency, and to reduce the labor intensity of workers.

[0007] The purpose of this utility model is achieved through the following technical solutions:

[0008] The utility model discloses a lifting rope protection device of an electric shovel with a shock-absorbing roller, characterized in that it comprises a lifting rope protection device frame, an upper guide roller, a lower guide roller and a guide roller fixing assembly, the lifting rope protection device frame is a rectangular frame composed of two longitudinal channel steel frames and a transverse upper connecting plate and a lower connecting plate connecting the two longitudinal channel steel frames, the guide roller fixing assemblies are four, respectively composed of a fixing plate, a fixing bolt and a plurality of rubber shock-absorbing balls, the fixing plates are respectively fixed in parallel at four corners in the longitudinal channel steel frame, one end of the fixing bolt passes through the end of the upper transverse connecting plate and the lower transverse connecting plate respectively, and the other end passes through the plurality of rubber shock-absorbing balls and the fixing plate, the upper transverse connecting plate and the lower transverse connecting plate are fixedly connected to the two longitudinal channel steel frames by nuts, the upper guide roller and the lower guide roller are arranged in the rectangular frame, and the roller shafts at both ends are respectively inserted into the rubber shock-absorbing balls of the four guide roller fixing assemblies, and frame mounting bottom angles are also provided at both ends of the lower part of the rectangular frame.

[0009] Preferably, there are three rubber shock-absorbing balls, the roller shaft of the upper guide roller is arranged between the second and third rubber shock-absorbing balls from top to bottom, and the roller shaft of the lower guide roller is arranged between the second and third rubber shock-absorbing balls from bottom to top.

[0010] Preferably, the upper guide roller and the lower guide roller are shock-absorbing rollers with rubber rings.

[0011] The utility model is installed on the upper part of the electric shovel suspension wall through the frame installation bottom angle, and the lifting steel rope is inserted between the upper guide roller and the lower guide roller. When the lifting steel rope shakes unexpectedly, the two guide rollers play a reliable bearing and limiting role.

[0012] The utility model has a simple structure and is easy to select and manufacture, and effectively reduces and eliminates the potential safety hazard of the lifting rope jumping out of the wheel groove of the sheave, and prevents the problem of the lifting rope breaking and reducing the service life. The service life of the lifting rope is increased, and the operation rate of the electric shovel is also increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural diagram of the utility model.

[0014] Figure 2 Schematic diagram of the longitudinal channel steel frame.

[0015] Figure 3 Schematic diagram of a rubber shock-absorbing ball. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the embodiments.

[0017] like Figure 1-Figure 3As shown, the utility model is a lifting rope protection device with a shock-absorbing roller for an electric shovel, characterized in that it includes a lifting rope protection device frame, an upper guide roller 31, a lower guide roller 32 and a guide roller fixing assembly, the lifting rope protection device frame is a rectangular frame composed of two longitudinal channel steel frames 11 and a transverse upper connecting plate 12 and a lower connecting plate 13 connecting the two longitudinal channel steel frames, the guide roller fixing assembly is four, and is respectively composed of a fixing plate 21, a fixing bolt 23 and a plurality of rubber shock-absorbing balls 22, the fixing plates 21 are respectively flat The upper and lower guide rollers 31 and 31 are fixed in the four corners of the longitudinal channel steel frame 11, one end of the fixing bolt 23 passes through the ends of the upper and lower transverse connecting plates 12 and 13 respectively, and the other end passes through a plurality of rubber shock-absorbing balls 22 and the fixing plate 21, and the upper and lower transverse connecting plates 12 and 13 are fixedly connected to the two longitudinal channel steel frames by nuts 24. The upper guide roller 31 and the lower guide roller 31 are arranged in a rectangular frame, and the roller shafts at both ends are respectively inserted into the rubber shock-absorbing balls 22 of the four guide roller fixing assemblies, and frame mounting bottom angles 4 are also provided at both ends of the lower part of the rectangular frame.

[0018] There are three rubber shock-absorbing balls 22 described in the utility model. The roller shaft of the upper guide roller 31 is arranged between the second and third rubber shock-absorbing balls 22 from top to bottom, and the roller shaft of the lower guide roller 32 is arranged between the second and third rubber shock-absorbing balls 22 from bottom to top. In this way, two shock-absorbing rubber balls are installed at the force-bearing end, and one shock-absorbing rubber ball is installed at the non-force-bearing end, so that the guide roller can achieve bidirectional shock absorption, reducing the impact of the impact force generated by the shaking of the steel rope on the base. 4 in the figure is a lifting steel rope.

[0019] The upper guide roller 31 and the lower guide roller 32 described in the utility model are shock-absorbing rollers with rubber rings. The shock-absorbing roller surface uses a roller surface with a rubber ring to contact the lifting steel rope 4, which has a buffering effect, and the contact between the lower guide roller 32 and the lifting steel rope is rolling friction, which reduces the friction resistance. The contact wear of the lifting steel rope is effectively reduced, and the service life of the lifting steel rope is extended.

Claims

1. A lifting rope protection device for an electric shovel with a shock-absorbing roller, characterized in that: It includes a lifting steel rope protection device frame, an upper guide roller, a lower guide roller and a guide roller fixing assembly. The lifting steel rope protection device frame is a rectangular frame composed of two longitudinal channel steel frames and a transverse upper connecting plate and a lower connecting plate connecting the two longitudinal channel steel frames. There are four guide roller fixing assemblies, which are respectively composed of a fixing plate, a fixing bolt and a plurality of rubber shock-absorbing balls. The fixing plates are respectively fixed in parallel at the four corners of the longitudinal channel steel frame. One end of the fixing bolt passes through the end of the upper transverse connecting plate and the lower transverse connecting plate respectively, and the other end passes through a plurality of rubber shock-absorbing balls and the fixing plate. The upper transverse connecting plate and the lower transverse connecting plate are fixedly connected to the two longitudinal channel steel frames by nuts. The upper guide roller and the lower guide roller are arranged in the rectangular frame, and the roller shafts at both ends are respectively inserted into the rubber shock-absorbing balls of the four guide roller fixing assemblies. Frame mounting bottom angles are also provided at the two ends of the lower part of the rectangular frame.

2. The electric shovel lifting rope protection device with a shock-absorbing roller according to claim 1 is characterized in that: There are three rubber shock-absorbing balls, the roller shaft of the upper guide roller is arranged between the second and third rubber shock-absorbing balls from top to bottom, and the roller shaft of the lower guide roller is arranged between the second and third rubber shock-absorbing balls from bottom to top.

3. The electric shovel lifting rope protection device with a shock-absorbing roller according to claim 1 is characterized in that: The upper guide roller and the lower guide roller are both shock-absorbing rollers with rubber rings.

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