Leveling device for electric bucket rod rack

Abstract

The utility model discloses a leveling device for an electric bucket rod rack, which comprises side plates correspondingly arranged on two sides of a bucket rod, a compression pin shaft connected between the bottoms of the two side plates, a hydraulic cylinder sleeve arranged between the two side plates, and a hydraulic cylinder sleeved in the hydraulic cylinder sleeve, the hydraulic sleeve is connected between the two side plates through a supporting plate and located above the rack, the pressing pin shaft is arranged below the bucket rod, the center line of the hydraulic cylinder sleeve coincides with the center line of the hydraulic cylinder, the inner diameter of the hydraulic cylinder sleeve is matched with the outer diameter of the hydraulic cylinder, and a plurality of walking wheels are arranged between the hydraulic sleeve and the rack. The walking wheels are in rolling fit with the rack, the multiple walking wheels are symmetrically hinged to the inner sides of the two side plates, the distance between the two side plates is matched with the width of the bucket rod, and the output end of the hydraulic cylinder is close to one side of the rack; the device is simple in structure and convenient to disassemble and assemble, the leveling block can be conveniently and rapidly positioned to the position above the tooth crest to be leveled, and good accuracy is achieved during rack correction.

Description

Technical Field

[0001] The utility model belongs to the technical field of electric shovel bucket rod rack welding and leveling, and in particular relates to a leveling device for an electric shovel bucket rod rack. Background Art

[0002] The electric shovel is one of the main mining equipment in tens of millions of tons open-pit mines. It has high productivity, high operating rate and low operating cost. It is a recognized model in the mining industry. Conventional electric shovels are composed of walking devices, rotating devices, working devices, lubrication systems, and air supply systems. The bucket is the main component of the electric shovel. It directly bears the force of the excavated ore, so it wears more. The arm is also one of the main components in the excavation process of the electric shovel. Its function is to connect and support the bucket and transmit the pushing action to the bucket. The bucket completes the action of excavating the soil under the combined action of pushing and lifting force.

[0003] The rack of the bucket arm of an electric shovel is an important transmission mechanism for the excavation operation of the electric shovel. It transmits power by pushing the pinion to mesh with the rack, and has high precision requirements. The rack of the bucket arm is long, and is a structure that is welded as a whole after segmented docking. It is difficult to control welding deformation. In the existing technology, large steel ingots are often required to flatten the overall welding, which is labor-intensive and time-consuming. In addition, in the case of excessive local clearance, it cannot be accurately adjusted to the acceptable range. In summary, there is an urgent need for a convenient and accurate leveling device that can accurately flatten the local clearance at any position within the full length of the rack. Utility Model Content

[0004] In order to solve some or all of the technical problems existing in the above-mentioned prior art, the utility model provides a leveling device for a rack of an electric shovel bucket rod, wherein the leveling device is sleeved on the outside of the bucket rod, and a rack is arranged on the top of the bucket rod. The leveling device for the rack of the electric shovel bucket rod comprises side plates correspondingly arranged on both sides of the bucket rod, a clamping pin connected between the bottoms of the two side plates, a hydraulic cylinder sleeve arranged between the two side plates, and a hydraulic cylinder sleeved in the hydraulic cylinder sleeve, wherein:

[0005] The hydraulic sleeve is connected between the two side plates through a support plate and is located above the rack. The clamping pin is arranged below the boom. The center line of the hydraulic cylinder sleeve coincides with the center line of the hydraulic cylinder. The inner diameter of the hydraulic cylinder sleeve matches the outer diameter of the hydraulic cylinder. A plurality of travel wheels are arranged between the hydraulic sleeve and the rack. The travel wheels and the rack are in rolling fit. The plurality of travel wheels are symmetrically hinged to the inner sides of the two side plates. The distance between the two side plates matches the width of the boom. The output end of the hydraulic cylinder is close to one side of the rack.

[0006] As a specific implementation, in the above-mentioned leveling device for the bucket rack of an electric shovel, a track surface is provided on the upper surface of the rack, a plurality of teeth are evenly distributed in the middle of the track surface, the running wheel and the track surface are in rolling fit, and the wheel width of the running wheel matches the width of the track surface.

[0007] As a specific implementation, in the above-mentioned leveling device for the bucket rack of an electric shovel, a leveling block is detachably provided at the output end of the hydraulic cylinder.

[0008] As a specific implementation, in the above-mentioned leveling device for the bucket rack of an electric shovel, the clamping pin is detachably arranged between the two side plates.

[0009] As a specific implementation, in the above-mentioned leveling device for the bucket rack of an electric shovel, the number of the traveling wheels is 2 to 8.

[0010] The utility model of the leveling device for the bucket bar rack of the electric shovel has the following advantages and beneficial effects:

[0011] The device is provided with a traveling wheel that rolls on the rack, thereby realizing convenient and quick positioning of the leveling block above the top of the tooth to be leveled, and the axial position of the hydraulic cylinder in the hydraulic cylinder sleeve is adjustable, and the position of the clamping pin on the side plate can also be adjusted, so that the rack correction has good accuracy, and the leveling block and the clamping pin are both detachable. When the leveling block and the clamping pin are worn or malfunction, they can be directly replaced, thereby increasing the overall service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the embodiments or the prior art descriptions. Obviously, the drawings in the following descriptions are only used to further understand the embodiments of the utility model and constitute a part of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the drawings:

[0013] Figure 1 It is a structural schematic diagram of a leveling device for an electric shovel bucket rack of the utility model;

[0014] Figure 2 It is a side view of the leveling device for the bucket rack of an electric shovel according to the utility model.

[0015] Description of reference numerals:

[0016] 1-side plate, 2-clamping pin, 3-hydraulic cylinder sleeve, 4-hydraulic cylinder, 5-support plate, 6-rack, 61-track surface, 7-arm, 8-travel wheel. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the utility model.

[0018] like Figure 1 , Figure 2 As shown, in the leveling device for the rack of the bucket arm of an electric shovel of the present invention, the leveling device is movably sleeved on the outside of the bucket arm 7, and a rack 6 is arranged on the top of the bucket arm 7. The leveling device for the rack of the bucket arm of an electric shovel includes side plates 1 correspondingly arranged on both sides of the bucket arm 7, a clamping pin 2 connected between the bottoms of the two side plates 1, a hydraulic cylinder sleeve 3 arranged between the two side plates 1, and a hydraulic cylinder 4 sleeved in the hydraulic cylinder sleeve 3. The fixed end of the hydraulic cylinder 4 is arranged in the hydraulic cylinder sleeve 3, and the axial position of the hydraulic cylinder 4 in the hydraulic cylinder sleeve 3 is adjustable, wherein the hydraulic cylinder sleeve 3 is connected between the two side plates 1 through a support plate 5 and is located above the rack 6, the support plate 5 is fixed to the inner side of the two side plates 1, the support plate 5 and the hydraulic cylinder sleeve 3 are fixedly connected, and the clamping pin 2 is arranged Below the boom 7, the boom 7 can stably rest against the clamping pin 2. Of course, the specific position of the clamping pin 2 needs to be set according to the specific working conditions such as the size of the boom 7 and the specifications of the hydraulic cylinder 4. The center line of the hydraulic cylinder sleeve 3 coincides with the center line of the hydraulic cylinder 4, and the inner diameter of the hydraulic cylinder sleeve 3 matches the outer diameter of the hydraulic cylinder 4. A plurality of walking wheels 8 are arranged between the hydraulic cylinder sleeve 3 and the rack 6. The walking wheels 8 and the rack 6 are in rolling cooperation, and the device can be freely slid on the boom 7 by rolling the walking wheels 8 on the rack 6. A plurality of walking wheels 8 are symmetrically hinged to the inner sides of the two side plates 1, and the distance between the two side plates 1 matches the width of the boom 7. The output end of the hydraulic cylinder 4 is close to one side of the rack 6, and the output end of the hydraulic cylinder 4 can be pressed to the tooth top of the rack 6.

[0019] As a specific implementation, in the leveling device for the boom rack of an electric shovel of the utility model, a track surface 61 is provided on the upper surface of the rack 6, and a plurality of teeth are evenly distributed in the middle of the track surface 61. The walking wheel 8 and the track surface 61 are in rolling fit, and the wheel width of the walking wheel 8 matches the width of the track surface 61. The walking wheel 8 can roll on the track surface 61 to drive the side plate 1 to move along the direction of the boom 7. Before using this device for leveling, the oil stains and sludge on the tooth tops of the rack 6 can be cleaned to ensure the normal operation of the walking wheel 8. Such a setting can make the overall displacement of the device more stable, and the displacement to the rack 6 that needs to be leveled can be faster and more convenient.

[0020] As a specific implementation, in the leveling device for the bucket rack of an electric shovel of the utility model, a leveling block (not shown in the figure) is detachably arranged at the output end of the hydraulic cylinder 4. During the leveling process, the rack 6 is leveled by pressing the tooth top through the leveling block. With such an arrangement, when the leveling block is worn or fails, the leveling block can be directly replaced, thereby increasing the overall service life of the device.

[0021] As a specific implementation, in the leveling device for the bucket rack of an electric shovel of the utility model, the clamping pin 2 is detachably arranged between the two side plates 1. With such an arrangement, when the clamping pin 2 is worn or fails, the clamping pin 2 can be directly replaced, thereby increasing the overall service life of the device.

[0022] As a specific implementation, in the leveling device for the bucket rack of an electric shovel of the utility model, the number of the running wheels 8 is 2 to 8, more specifically, the number of the running wheels 8 is 4. Of course, the specific number of the running wheels 8 needs to be set according to specific working conditions such as the size of the bucket 7 and the specifications of the hydraulic cylinder 4.

[0023] The working principle of the leveling device for the bucket bar rack of the utility model is as follows:

[0024] The device is mounted on the boom 7, and the hydraulic cylinder 4 is ensured to be located on one side of the rack 6, and the side plate 1 is driven to move smoothly along the direction of the boom 7. When the displacement reaches the point where the leveling block is above the tooth top to be leveled, the displacement is stopped, and then the device is lifted by the hydraulic jack to make the walking wheel 8 leave the track surface 61. At this time, the clamping pin 2 is locked, and the tooth top is leveled by the leveling block. After the leveling operation of the tooth top is completed, the jack is removed, the clamping pin 2 is released, and the side plate 1 is continued to be driven to move smoothly along the direction of the boom 7 to the top of the next tooth to be leveled, and the above steps are repeated until all the leveling work is completed.

[0025] In summary, compared with the prior art, the leveling device for the bucket bar rack of the utility model has the following advantages and beneficial effects:

[0026] The device is provided with a walking wheel 8 that rolls on the rack 6, so that the leveling block can be positioned above the top of the tooth to be leveled quickly and conveniently, and the axial position of the hydraulic cylinder 4 in the hydraulic cylinder sleeve 3 can be adjusted, and the position of the clamping pin 2 on the side plate 1 can also be adjusted, so that the rack 6 can be corrected with good accuracy, and the leveling block and the clamping pin 2 are both detachable. When the leveling block and the clamping pin 2 are worn or malfunction, they can be directly replaced, thereby increasing the overall service life of the device.

[0027] It should be noted that, in this article, unless otherwise clearly specified and limited, the term "connection" or its synonyms should be understood in a broad sense. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances. Moreover, expressions such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such a process, method, article or device. In addition, "front", "back", "left", "right", "upper", "lower" and the like in this article are all referenced to the placement state shown in the accompanying drawings.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features therein may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A leveling device for a rack of an electric shovel bucket arm, wherein the leveling device is sleeved on the outside of the bucket arm, and a rack is provided on the top of the bucket arm, characterized in that: The leveling device for the rack of the bucket arm of the electric shovel comprises side plates respectively arranged on both sides of the bucket arm, a clamping pin connected between the bottoms of the two side plates, a hydraulic cylinder sleeve arranged between the two side plates, and a hydraulic cylinder sleeved in the hydraulic cylinder sleeve, wherein: The hydraulic cylinder sleeve is connected between the two side plates through a support plate and is located above the rack. The clamping pin is arranged below the boom. The center line of the hydraulic cylinder sleeve coincides with the center line of the hydraulic cylinder. The inner diameter of the hydraulic cylinder sleeve matches the outer diameter of the hydraulic cylinder. A plurality of travel wheels are arranged between the hydraulic cylinder sleeve and the rack. The travel wheels and the rack are in rolling fit. The plurality of travel wheels are symmetrically hinged to the inner sides of the two side plates. The distance between the two side plates matches the width of the boom. The output end of the hydraulic cylinder is close to one side of the rack.

2. The leveling device for the bucket rack of an electric shovel according to claim 1, characterized in that: A track surface is arranged on the upper surface of the rack, a plurality of teeth are evenly distributed in the middle of the track surface, the running wheel and the track surface are in rolling fit, and the wheel width of the running wheel matches the width of the track surface.

3. The leveling device for the bucket rack of an electric shovel according to claim 1, characterized in that: A leveling block is detachably provided at the output end of the hydraulic cylinder.

4. The leveling device for the bucket rack of an electric shovel according to claim 1, characterized in that: The clamping pin is detachably arranged between the two side plates.

5. The leveling device for the bucket rack of an electric shovel according to claim 1, characterized in that: The number of the running wheels is 2 to 8.

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