Detachable lifting auxiliary hoist device and mining excavator

Abstract

The utility model discloses a detachable lifting auxiliary hoist device and mining excavator, device includes: mounting seat, it detachably sets up on the frame column behind the lifting drum of excavator, and is located the wire outlet direction's reverse direction of the lifting steel wire rope of lifting drum, lifting hoist, it detachably sets up on mounting seat, be equipped with the towrope on lifting hoist, the towrope can draw the lifting steel wire rope to the steel wire rope fixed end place on lifting drum. The utility model sets up detachable mounting seat and lifting hoist on the frame column behind the lifting drum of mining excavator, utilizes the towrope of lifting hoist and directly draws new lifting steel wire rope to the steel wire rope fixed end place of lifting drum, completes the installation work of threading, avoids the site restriction and the inconvenience of operation brought by using crane and other large -scale equipment, reduces the labor intensity of operating personnel using guide chain, also reduces the replacement cost.

Description

Technical Field

[0001] This utility model relates to the field of lifting device technology, and in particular to a detachable lifting auxiliary winch device and a mining excavator. Background Technology

[0002] The hoisting wire rope in a mining excavator mainly bears the force that transmits the force from the hoisting drum to the bucket. Because the force load on the hoisting wire rope is relatively large and the load changes very complexly during operation, it usually needs to be replaced once a month to ensure safety. The existing method of replacing the hoisting wire rope mainly involves using a crane and guide chain to pull the new hoisting wire rope around the pulley before connecting it to the hoisting drum. The replacement operation is complicated and costly. Utility Model Content

[0003] To address the shortcomings of the existing technology, this utility model provides a detachable lifting auxiliary winch device and a mining excavator, which solves the technical problem of complex operation when installing new lifting wire ropes on mining excavators.

[0004] This utility model provides the following technical solution: In a first aspect, this utility model provides a detachable lifting auxiliary winch device, comprising: The mounting base is detachably mounted on the frame column behind the excavator's lifting drum and is located in the opposite direction to the outgoing direction of the lifting wire rope of the lifting drum. The mounting base includes a first bracket and a second bracket, which are located on both sides of the frame column and are used to clamp the frame column. A hoisting winch is detachably mounted on the mounting base. The hoisting winch is equipped with a traction rope, which is connected to one end of the hoisting wire rope. The traction rope can pull the hoisting wire rope to the fixed end of the wire rope on the hoisting drum.

[0005] In one embodiment, a shock-absorbing pad is provided between the hoisting winch and the mounting base.

[0006] In one embodiment, the detachable lifting auxiliary winch further includes a third bracket, which is detachably mounted on the frame column and located below the mounting base. The third bracket has an anti-loosening top plate on its top, which contacts the bottom of the mounting base. The third bracket includes two clamps arranged opposite to each other, which clamp the frame column between them.

[0007] In one embodiment, the third bracket further includes a mounting plate connected to the clamp located below the first bracket, with the bottom surface of the first bracket abutting the top surface of the mounting plate.

[0008] In one embodiment, the mounting plate is rotatably connected to the clamp, the mounting plate is provided with two sets of positioning holes, the clamp is provided with pin holes that cooperate with the positioning holes, and a positioning pin is inserted into the pin hole.

[0009] In one embodiment, the mounting plate is rectangular, with leveling knobs at each of its four corners.

[0010] In one embodiment, the mounting plate is provided with clearance grooves at the positions of the connecting bolts between the mounting base and the hoisting winch.

[0011] In one embodiment, the first bracket and / or the second bracket are provided with threading holes for the traction rope to pass through. Guide rollers and side guide rollers are provided at the threading holes. Guide rollers are provided on the upper and lower sides of the threading holes, and side guide rollers are provided on the left and right sides of the threading holes.

[0012] In one embodiment, the first support includes a mating plate and a support plate fixedly connected to each other and having an included angle, and a reinforcing rib connecting the mating plate and the support plate. The mating plate is used to abut against the frame column, the upper surface of the support plate is in a horizontal position, and the hoisting winch is mounted on the support plate.

[0013] Secondly, this utility model provides a mining excavator, including the above-mentioned detachable lifting auxiliary winch device, and the quantity of the two detachable lifting auxiliary winches is arranged symmetrically on the frame columns on the left and right sides behind the lifting drum of the mining excavator.

[0014] Compared with the prior art, the present invention has the following beneficial effects: This invention involves installing a detachable mounting base and a hoisting winch on the frame column behind the hoisting drum of a mining excavator. The hoisting winch's traction rope directly pulls a new hoisting wire rope to the fixed end of the wire rope on the hoisting drum, completing the rope threading and installation operation. This avoids the site limitations and operational inconveniences associated with using large equipment such as cranes, reduces the labor intensity of operators using the guide chain, and lowers replacement costs. Furthermore, the detachable mounting base facilitates disassembly and avoids welding the main structure of the equipment, preventing any reduction in the strength of the main structure due to welding operations. Attached Figure Description

[0015] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0016] Figure 1 This is a structural diagram of an existing mining excavator; Figure 2A schematic diagram of the installation structure of the detachable lifting auxiliary winch device mounted on the frame column; Figure 3 This is a schematic diagram of the first support structure; Figure 4 This is a schematic diagram of the second support structure; Figure 5 A schematic diagram of one embodiment of a detachable lifting auxiliary winch device; Figure 6 A schematic diagram of another embodiment of the detachable lifting auxiliary winch device; Figure 7 for Figure 6 Another structural diagram from a different perspective; Figure 8 This is a schematic diagram showing the installation location of the detachable lifting auxiliary winch device. Figure 9 A schematic diagram showing the location of the wire holes on the mounting base; Figure 10 For mining excavators Figure 8 A-direction view of the structure.

[0017] Figure label: 1. First bracket; 1-1. Adhesive plate; 1-1-1. First wire hole; 1-2. Support plate; 1-3. Reinforcing rib; 2. Second bracket; 2-1. Second wire hole; 3. Elevate the winch; 4. Third bracket; 4-1. Anti-loosening top plate; 4-2. Mounting plate; 4-2-1. Positioning pin; 4-2-2. Leveling knob; 4-2-3. Leaving groove; 4-3. Clamp; 5. Shock-absorbing pads; 6. Frame columns; 7. Lift the drum; 8. Lifting wire rope; 9. Towing rope; 10. Fixed end of wire rope; 11. Guide rollers; 12. Side guide rollers. Detailed Implementation

[0018] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0019] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0020] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0021] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or a joint; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0022] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] Example 1 like Figure 1 As shown, in existing mining excavators, the hoisting wire rope 8 exits from the hoisting drum 7, passes over the pulley at the top of the boom, and connects to the bucket below. Typically, the frame column 6 of a mining excavator is an A-type column as shown in the diagram, and the frame column 6 behind the hoisting drum 7 is usually tilted forward at a certain angle towards the hoisting drum 7. In existing technology, when replacing the hoisting wire rope 8, it is first necessary to disconnect both ends connecting the bucket and the hoisting drum 7. The old hoisting wire rope 8 is then towed away using a vehicle or winch. Then, a crane, chain guide, or other device is used to pull and drag the new hoisting wire rope 8, so that one end passes over the pulley and connects to the wire rope fixed end 10 of the hoisting drum 7, while the other end connects to the bucket.

[0026] like Figure 2 and Figure 8 As shown, this utility model provides a detachable lifting auxiliary winch device, including a mounting base and a lifting winch 3. The mounting base is detachably mounted on the frame column 6 behind the lifting drum 7 of an excavator, and is located in the opposite direction to the outgoing direction of the lifting wire rope 8 of the lifting drum 7. The mounting base includes a first bracket 1 and a second bracket 2, which are located on both sides of the frame column 6, respectively. The first bracket 1 is connected to the second bracket 2 by bolts to clamp the frame column 6, and spring washers are provided on the bolts to prevent loosening. The lifting winch 3 is detachably mounted on the mounting base and is equipped with a traction rope 9. The traction rope 9 is connected to one end of the lifting wire rope 8 and can pull the lifting wire rope 8 to the wire rope fixed end 10 on the lifting drum 7.

[0027] By setting up a mounting base detachably mounted on the frame column 6 behind the lifting drum 7 and a lifting winch 3, the traction rope 9 can pull the lifting wire rope 8 to the wire rope fixed end 10 on the lifting drum 7 to complete the rope threading installation operation. This avoids the site restrictions and operational inconveniences caused by using large equipment such as cranes, reduces the labor intensity of operators using the guide chain, and lowers replacement costs. The detachable mounting base facilitates disassembly and avoids welding the main structure of the equipment, preventing any reduction in the strength of the main structure due to welding. The first bracket 1 and the second bracket 2, connected by bolts, facilitate the installation of the mounting base. The detachable connection between the lifting winch 3 and the mounting base allows for separate installation of the device, facilitating installation, disassembly, and position adjustment.

[0028] like Figure 5 and Figure 6 As shown, in some embodiments, a vibration damping pad 5 is provided between the hoisting winch 3 and the mounting base. By providing the vibration damping pad 5, the vibration transmitted from the hoisting winch 3 to the mounting base during operation can be reduced, preventing the mounting base from falling off due to vibration. The vibration damping pad 5 is typically made of rubber.

[0029] like Figure 2 As shown, in some embodiments, the detachable lifting auxiliary winch device further includes a third bracket 4, which is detachably mounted on the frame column 6 and located below the mounting base. The top of the third bracket is provided with an anti-loosening top plate 4-1, which contacts the bottom of the mounting base. The third bracket 4 includes two clamps 4-3 arranged opposite to each other, which clamp the frame column 6 between them. The two clamps 4-3 are connected by bolts, and spring washers are provided on the bolts to prevent loosening.

[0030] By setting a third bracket 4 below the mounting base and having its top anti-loosening plate 4-1 in contact with the bottom of the mounting base, the third bracket 4 can hold the mounting base in place and prevent it from sliding down the frame column 6 if the mounting base becomes loose due to vibration. Moreover, by setting the third bracket 4, the loosening of the mounting base due to vibration can also be reduced.

[0031] like Figure 5 and Figure 6 As shown, in some embodiments, the third bracket 4 further includes a mounting plate 4-2, which is connected to a clamp 4-3 located below the first bracket 1, and the bottom surface of the first bracket 1 is in contact with the top surface of the mounting plate 4-2.

[0032] By setting the mounting plate 4-2, the installation position of the mounting base can be precisely located, making the installation of the mounting base more convenient. When installing the device, the third bracket 4 can be installed first. After the third bracket 4 is installed, the mounting base can be installed. At this time, the upper surface of the mounting plate 4-2 of the third bracket 4 is the placement surface of the first bracket 1. The installer can first place the first bracket 1 on the mounting plate 4-2, and then install the second bracket 2 in the corresponding position of the first bracket 1 and tighten the first bracket 1 and the second bracket 2 with bolts. One installer can complete the installation of the mounting base. However, without the support and positioning of the first bracket 1 by the mounting plate 4-2, it is difficult for one installer to independently complete the precise positioning and installation of the first bracket 1 and the second bracket 2; at least two people are required to complete the installation.

[0033] After installing the mounting base, the installers then install the hoisting winch 3 on the mounting base. The hoisting winch 3 is connected to the mounting base by connecting bolts. For ease of installation, as follows... Figure 5 As shown, in some embodiments, the mounting plate 4-2 is rotatably connected to the clamp 4-3. The mounting plate 4-2 has two sets of positioning holes, and the clamp 4-3 has pin holes that mate with the positioning holes. A positioning pin 4-2-1 is inserted into the pin hole. By setting the mounting plate 4-2 to rotatably connect to the clamp 4-3, and by setting the positioning holes, pin holes, and positioning pin 4-2-1, the mounting plate 4-2 can rotate around the axis and can be positioned in two positions: the mounting position and the clearance position. First, the mounting plate 4-2 is rotated to the horizontal mounting position and positioned using the positioning pin 4-2-1. After the mounting base is installed, the positioning pin 4-2-1 is pulled out, and the mounting plate 4-2 is rotated downwards to the clearance position and then the positioning pin 4-2-1 is inserted again for positioning. This clears the space below the mounting position of the hoisting winch 3 and the mounting base, facilitating the installation of the connecting bolts between the hoisting winch 3 and the mounting base.

[0034] like Figure 6 As shown, in some embodiments, the mounting plate 4-2 is rectangular, with leveling knobs 4-2-2 at each of its four corners. By providing leveling knobs 4-2-2 at each of the four corners of the mounting plate 4-2, the bottom of the mounting base can be leveled during installation, facilitating more precise adjustment of the mounting base's position.

[0035] like Figure 6As shown, in some embodiments, the mounting plate 4-2 is provided with clearance grooves 4-2-3 at the positions of the connecting bolts between the mounting base and the hoisting winch 3. The clearance grooves 4-2-3 facilitate the installation of the connecting bolts. If the mounting plate 4-2 has several clearance grooves 4-2-3, the mounting plate 4-2 and the clamp 4-3 can be fixedly connected. Alternatively, when installing the hoisting winch 3, the mounting plate 4-2 can be installed without rotating it downwards to the clearance position. The first bracket 1 and the hoisting winch 3 can be installed first with the connecting bolts, then placed on the mounting plate 4-2, and finally the first bracket 1 and the second bracket 2 can be connected, making the installation methods more diverse.

[0036] like Figure 3 , Figure 4 , Figure 7 and Figure 9 As shown, in some embodiments, the mounting base is provided with a threading hole, that is, the first bracket 1 and / or the second bracket 2 are provided with a threading hole for the traction rope 9 to pass through. A guide roller 11 and a side guide roller 12 are provided at the threading hole. Guide rollers 11 are provided on both the upper and lower sides of the threading hole, and side guide rollers 12 are provided on both the left and right sides of the threading hole. By providing a threading hole on the mounting base and providing guide rollers 11 and side guide rollers 12 at the threading hole, the traction rope 9 can be limited and the friction between the traction rope 9 and the mounting base can be reduced. Through the limiting effect of the threading hole, the traction direction of the traction rope 9 on the lifting wire rope 8 is adapted to the wire rope fixed end 10 on the lifting drum 7.

[0037] Specifically, such as Figure 3 As shown, the first bracket 1 has a first threading hole 1-1-1 for passing the traction rope 9 through, and a guide roller 11 and a side guide roller 12 are provided at the first threading hole 1-1-1. Figure 4 As shown, the second bracket 2 is provided with a second threading hole 2-1 for the traction rope 9 to pass through. A guide roller 11 and a side guide roller 12 are provided at the second threading hole 2-1. In this embodiment, both the first bracket 1 and the second bracket 2 are provided with threading holes. In other embodiments, threading holes may be provided only on the first bracket 1 or the second bracket 2, as long as the corresponding position of the other bracket does not obstruct the traction rope 9. For example, the first threading hole 1-1-1 may be provided only on the first bracket 1, while the second bracket 2 is shortened in the left and right direction so that it does not block the traction rope 9 passing through the first threading hole 1-1-1.

[0038] like Figure 2 and Figure 3As shown, in some embodiments, the first bracket 1 includes a mating plate 1-1 and a support plate 1-2 that are fixedly connected to each other and have an included angle, as well as a reinforcing rib 1-3 connecting the mating plate 1-1 and the support plate 1-2. When the mounting base is installed on the frame column 6, the mating plate 1-1 is used to abut against the frame column 6, the upper surface of the support plate 1-2 is in a horizontal position, and the hoisting winch 3 is installed on the support plate 1-2.

[0039] By setting the first bracket 1 as a bonding plate 1-1 with an angle and a support plate 1-2, and when the mounting base is installed on the frame column 6, the upper surface of the support plate 1-2 is in a horizontal position, and the hoisting winch 3 is installed on the support plate 1-2, the hoisting winch 3 can be installed horizontally, which is convenient for installation.

[0040] The method of using the detachable lifting auxiliary winch device of this utility model is as follows: Install the third bracket 4 at a suitable position on the frame column 6 behind the lifting drum 7. Install the mounting base on the frame column 6 above the third bracket 4, and install the lifting winch 3 on the mounting base. Place the bucket on the ground, remove both ends of the old lifting wire rope 8, and connect one end of it on the lifting drum 7 to the traction rope 9 of the lifting winch 3. Use a vehicle or winch to pull away the old lifting wire rope 8, and at the same time, pull the traction rope 9 of the lifting winch 3 around the pulley to the bucket. Untie the traction rope 9 from the old lifting wire rope 8 and connect the new lifting wire rope 8. Turn on the lifting winch 3, retract the traction rope 9, and the traction rope 9 will pull the new lifting wire rope 8 to the wire rope fixing end 10 of the lifting drum 7. Fix the lifting wire rope 8 to the lifting drum 7, and fix the other end of the lifting wire rope 8 to the bucket. Untie the traction rope 9 from the new lifting wire rope 8 to complete the rope threading and installation operation. Finally, remove the hoisting winch 3 and the mounting base. The third bracket 4 can be removed or left on the frame column 6. If the third bracket 4 is not removed, it will be more convenient and faster to install the mounting base and hoisting winch 3 next time.

[0041] Example 2 This utility model also provides a mining excavator, including the aforementioned detachable lifting auxiliary winch device, and the quantity of such winch device is two, such as... Figure 10 As shown, two detachable lifting auxiliary winches are symmetrically arranged on the frame columns 6 on the left and right sides behind the lifting drum 7 of the mining excavator.

[0042] Since the lifting wire rope 8 of a large mining excavator is usually two ropes, one on the left and one on the right, this embodiment also symmetrically sets two detachable lifting auxiliary winches on the left and right sides behind the lifting drum 7. The two detachable lifting auxiliary winches respectively pull the lifting wire rope 8 on their corresponding sides to the wire rope fixing ends 10 at the left and right ends of the lifting drum 7.

[0043] In summary, this utility model, by setting a detachable mounting base and a hoisting winch 3 on the frame column 6 behind the hoisting drum 7 of a mining excavator, and using the traction rope 9 of the hoisting winch 3 to directly pull the hoisting wire rope 8 to the wire rope fixed end 10 of the hoisting drum 7 to complete the rope threading and installation operation, avoids the site restrictions and operational inconveniences caused by using large equipment such as cranes, reduces the labor intensity of operators using the guide chain, and lowers replacement costs; moreover, by setting a detachable mounting base, it is convenient to disassemble and avoids welding of the main structure of the equipment, so as not to reduce the strength of the main structure of the equipment due to welding operations.

[0044] It is worth noting that the control components and modules used in the hoisting winch 3 described above are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0045] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A detachable lift assist hoist, characterized by, include: The mounting base is detachably mounted on the frame column behind the excavator's lifting drum and is located in the opposite direction to the outgoing direction of the lifting wire rope of the lifting drum. The mounting base includes a first bracket and a second bracket, which are located on both sides of the frame column and are used to clamp the frame column. A hoisting winch is detachably mounted on the mounting base. The hoisting winch is equipped with a traction rope, which is connected to one end of the hoisting wire rope. The traction rope can pull the hoisting wire rope to the fixed end of the wire rope on the hoisting drum.

2. The detachable lifting auxiliary winch device according to claim 1, characterized in that, A shock-absorbing pad is provided between the hoisting winch and the mounting base.

3. The detachable lifting auxiliary winch device according to claim 1, characterized in that, The detachable lifting auxiliary winch device also includes a third bracket, which is detachably mounted on the frame column and located below the mounting base. The top of the third bracket is provided with an anti-loosening top plate, which contacts the bottom of the mounting base. The third bracket includes two clamps arranged opposite to each other, which clamp the frame column between them.

4. The detachable lift assist winch of claim 3, wherein, The third bracket also includes a mounting plate, which is connected to the clamp located below the first bracket, and the bottom surface of the first bracket is attached to the top surface of the mounting plate.

5. The detachable lift assist winch of claim 4, wherein, The mounting plate is rotatably connected to the clamp. The mounting plate is provided with two sets of positioning holes. The clamp is provided with pin holes that cooperate with the positioning holes. Positioning pins are inserted into the pin holes.

6. The detachable lift assist winch of claim 4, wherein, The mounting plate is rectangular, with leveling knobs at each of its four corners.

7. The detachable lifting auxiliary winch device according to claim 4, characterized in that, The mounting plate is provided with clearance grooves at the positions of the connecting bolts between the mounting base and the hoisting winch.

8. The detachable lift assist winch of claim 1, wherein, The first bracket and / or the second bracket are provided with threading holes for the traction rope to pass through. Guide rollers and side guide rollers are provided at the threading holes. Guide rollers are provided on the upper and lower sides of the threading holes, and side guide rollers are provided on the left and right sides of the threading holes.

9. The detachable lifting auxiliary winch device according to claim 1, characterized in that, The first support includes a mating plate and a support plate that are fixedly connected to each other and have an included angle, as well as a reinforcing rib connecting the mating plate and the support plate. The mating plate is used to abut against the frame column. The upper surface of the support plate is in a horizontal position. The hoisting winch is mounted on the support plate.

10. A mining excavator characterized in that, It includes two detachable lifting auxiliary winches as described in any one of claims 1-9, with the two detachable lifting auxiliary winches symmetrically arranged on the frame columns on the left and right sides behind the lifting drum of the mining excavator.

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