Fastener combination counterweight device for rotary drilling rig

Abstract

The utility model discloses a fastener combined counterweight device for a rotary drilling rig, which comprises a first counterweight block fixed at the top of a platform through a first fastener, a second counterweight block arranged above the first counterweight block, and a plurality of third counterweight blocks arranged between the first counterweight block and the second counterweight block, the balancing weights are connected through second fasteners, and the tops of the second balancing weights are connected with circular ring bolts. The device is simple in structure, compared with a traditional overall filling type balance weight, due to the fact that each balance weight block is small in size, the filling degree is better, weight distribution is more uniform, vehicle-mounted transportation is more convenient, all the balance weight blocks are fixed in a staggered mode through fasteners, stress is more uniform, mounting and dismounting are more convenient, and the service life of the device is prolonged. The balancing weights are arranged in the positioning grooves, the balancing weights are more convenient to install through cooperation between the positioning blocks and the positioning grooves, connection between the balancing weights is more stable, and connection between the balancing weights is more stable through the arrangement of the connecting sleeves.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary drilling rigs, and particularly relates to a fastener combined counterweight device for a rotary drilling rig. Background Technique

[0002] A rotary drilling rig is a construction machinery suitable for hole-forming operations in building foundation projects, and is widely used in foundation construction projects such as municipal construction, highway bridges, and high-rise buildings. By cooperating with different drilling tools, it is suitable for dry (short helix), or wet (rotary bucket) and rock formation (core drill) hole-forming operations.

[0003] In the prior art, the counterweight of a rotary drilling rig generally adopts the method of filling fillers inside a large housing. This method greatly wastes the layout space of the whole machine, and due to the large overall volume of this integral filling type counterweight, there are disadvantages such as poor filling degree, uneven overall weight distribution, and inconvenient transportation along with the vehicle. Especially when designing some large models, the disadvantages of this integral filling type counterweight are more obvious. To sum up, there is an urgent need for a fastener combined counterweight device for a rotary drilling rig. Content of the Utility Model

[0004] To solve some or all of the technical problems existing in the above prior art, the utility model provides a fastener combined counterweight device for a rotary drilling rig. The fastener combined counterweight device is arranged above the platform. The fastener combined counterweight device for the rotary drilling rig includes a first counterweight block fixed to the top of the platform through a first fastener, a second counterweight block arranged above the first counterweight block, and a plurality of third counterweight blocks arranged between the first counterweight block and the second counterweight block, wherein:

[0005] A plurality of first fixing holes are formed at the bottom of the first counterweight block, and the first fastener is connected in the first fixing holes. A plurality of second fixing holes are formed at both ends of the tops of the first counterweight block, the second counterweight block, and the third counterweight blocks, and a plurality of positioning grooves are formed in the middle of the tops. The plurality of second fixing holes are symmetrically arranged along the central axis of the length direction of the first counterweight block. The second counterweight block and the third counterweight blocks are both provided with positioning blocks matching the positioning grooves at the bottom, and the positioning blocks are arranged in the positioning grooves. The second counterweight block is connected to the second fixing holes at the top of the third counterweight block through the second fastener. The plurality of third counterweight blocks are connected through the second fastener and the second fixing holes. The third counterweight block is connected to the second fixing holes at the top of the first counterweight block through the second fastener. A lifting ring bolt is arranged in the second fixing hole at the top of the second counterweight block.

[0006] Furthermore, in the above-mentioned fastener combination counterweight device for a rotary drilling rig, among the first counterweight block, the second counterweight block, and multiple third counterweight blocks, the second fastener on one of the counterweight blocks between adjacent counterweight blocks is arranged on the inner side, and the other counterweight block is arranged on the outer side.

[0007] As a specific implementation, in the above-mentioned fastener combination counterweight device for a rotary drilling rig, a gasket is provided between the first fastener and the first fixing hole, and between the second fastener and the second fixing hole.

[0008] As a specific implementation, in the above-mentioned fastener combination counterweight device for a rotary drilling rig, a connecting sleeve is provided between the first fastener and the first fixing hole, and between the second fastener and the second fixing hole.

[0009] As a specific implementation, in the above-mentioned fastener combination counterweight device for a rotary drilling rig, the first fastener and the second fastener are both fastening bolts.

[0010] As a specific implementation, in the above-mentioned fastener combination counterweight device for a rotary drilling rig, the number of the eye bolts is 4 to 8.

[0011] As a specific implementation, in the above-mentioned fastener combination counterweight device for a rotary drilling rig, the number of the first fixing holes is 4 to 8.

[0012] The fastener combination counterweight device for a rotary drilling rig of the utility model has the following advantages and beneficial effects:

[0013] Compared with the traditional integrally filled counterweight, the device has a better filling degree and more uniform weight distribution because each counterweight block is smaller in size, and is more convenient to transport on a vehicle. The counterweight blocks are staggered and fixed with fasteners, so the force is more uniform and it is easier to install and disassemble. The cooperation between the positioning block and the positioning groove makes the installation of the counterweight block more convenient, and the connection between the counterweight blocks is more stable. In addition, by arranging a connecting sleeve between the fixing hole and the fastener, the connection between the counterweight blocks is more stable, thereby improving the overall stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] 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:

[0015] Figure 1 is a schematic structural view of the fastener combined counterweight device for a rotary drilling rig of the present utility model;

[0016] Figure 2 is a sectional view of the fastener combined counterweight device for a rotary drilling rig of the present utility model.

[0017] Description of the reference numerals:

[0018] 1 - First counterweight block, 2 - Second counterweight block, 3 - Third counterweight block, 4 - Lifting eye bolt, 5 - Positioning block, 6 - First fastener, 7 - Gasket, 8 - Second fastener, 9 - Connecting sleeve. Detailed implementation manners

[0019] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with specific embodiments of the present utility model and the corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the present utility model.

[0020] Such as Figure 1 、 Figure 2As shown in the figure, the present utility model discloses a fastener combination counterweight device for a rotary drilling rig. The fastener combination counterweight device is arranged above a platform (not shown in the figure). Of course, according to the actual use working conditions, multiple such counterweight devices can be selected to be arranged on the platform. The fastener combination counterweight device for the rotary drilling rig includes a first counterweight block 1 fixed to the top of the platform through a first fastener 6, a second counterweight block 2 arranged above the first counterweight block 1, and a plurality of third counterweight blocks 3 arranged between the first counterweight block 1 and the second counterweight block 2. The specific number of the third counterweight blocks 3 is set according to the actual use working conditions and is not limited herein. The bottom of the first counterweight block 1 matches the shape and size of the top of the platform. Among them, a plurality of first fixing holes are opened at the bottom of the first counterweight block 1, and the first fastener 6 is threadedly connected into the first fixing holes. The first counterweight block 1 is fixed at a designated position on the platform through the threaded connection between the first fastener 6 and the first fixing holes. A plurality of second fixing holes are opened at both ends of the top of the first counterweight block 1, the second counterweight block 2, and the third counterweight blocks 3, and a plurality of positioning grooves are opened in the middle of the top ends. The shape, size, and number of the positioning grooves are designed according to the actual use working conditions. The plurality of second fixing holes are symmetrically arranged along the length direction center of the first counterweight block 1. The second counterweight block 2 and the third counterweight blocks 3 are both provided with positioning blocks 5 at the bottom that match the positioning grooves, and the positioning blocks 5 are arranged in the positioning grooves. With such a setting, the position limitation between each counterweight block is realized through the cooperation between the positioning blocks 5 and the positioning grooves. This not only makes the installation efficiency between each counterweight block higher but also makes the connection between each counterweight block more stable. The second counterweight block 2 is connected to the second fixing holes at the top of the third counterweight block 3 through a second fastener 8, realizing the fixation between the second counterweight block 2 and the third counterweight block 3. The plurality of third counterweight blocks 3 are fixedly connected through the cooperation of the second fastener 8 and the second fixing holes. The third counterweight block 3 is connected to the second fixing holes at the top of the first counterweight block 1 through a second fastener 8, realizing the fixation between the third counterweight block 3 and the first counterweight block 1. A lifting ring bolt 4 is arranged in the second fixing hole at the top of the second counterweight block 2, and the lifting ring bolt 4 is threadedly connected into the second fixing hole.

[0021] As a specific implementation manner, in the fastener combination counterweight device for the rotary drilling rig of the present utility model, 4 to 8 second fixing holes are opened on each counterweight block. More specifically, 4 second fixing holes are opened on each counterweight block.

[0022] Furthermore, in the fastener combined counterweight device for a rotary drilling rig of the present utility model, among the first counterweight block 1, the second counterweight block 2, and multiple third counterweight blocks 3, the second fasteners 8 on one of the adjacent counterweight blocks are arranged on the inner side, while the other counterweight block is arranged on the outer side. Specifically, the multiple second fasteners 8 at the bottom of the second counterweight block 2 are arranged on the inner side, and the multiple second fasteners 8 at the bottom of the third counterweight block 3 adjacent thereto are arranged on the outer side, and so on. With such an arrangement, it is more convenient for installation, and the connection between each counterweight block is more stable, thereby improving the overall stability of the device.

[0023] As a specific implementation manner, in the fastener combined counterweight device for a rotary drilling rig of the present utility model, gaskets 7 are arranged between the first fastener 6 and the first fixing hole, and between the second fastener 8 and the second fixing hole. With such an arrangement, the stability of the connection between the first fastener and the first fixing hole, and between the second fastener 8 and the second fixing hole is improved, thereby improving the overall stability of the device.

[0024] As a specific implementation manner, in the fastener combined counterweight device for a rotary drilling rig of the present utility model, connection sleeves 9 are arranged between the first fastener 6 and the first fixing hole, and between the second fastener 8 and the second fixing hole. The connection sleeves 9 are press-fitted in the first fixing hole and the second fixing hole. Internal threads matching the first fastener 6 and the second fastener 8 are provided in the connection sleeves 9, and the first fastener 6 and the second fastener 8 are threadedly connected in the connection sleeves 9. With such an arrangement, the stability of the connection between the first fastener 6 and the first fixing hole, and between the second fastener 8 and the second fixing hole is improved, thereby improving the overall stability of the device.

[0025] As a specific implementation manner, in the fastener combined counterweight device for a rotary drilling rig of the present utility model, both the first fastener 6 and the second fastener 8 are fastening bolts. Of course, other fasteners such as fastening screws and rivets can also be used as long as they play a fixing role.

[0026] As a specific implementation manner, in the fastener combined counterweight device for a rotary drilling rig of the present utility model, the number of lifting eye bolts 4 is 4 to 8, and more specifically, the number of lifting eye bolts 4 is 4.

[0027] As a specific implementation manner, in the fastener combined counterweight device for a rotary drilling rig of the present utility model, the number of the first fixing holes is 4 to 8, and more specifically, the number of the first fixing holes is 6.

[0028] The installation process of the fastener combined counterweight device for a rotary drilling rig of the present utility model is as follows:

[0029] First, the first counterweight 1, the third counterweight 3, and the second counterweight 2 are connected and fixed in sequence from bottom to top through the second fastener 8, and then the eye bolt 4 is fixed to the second fixing hole on the top of the second counterweight 2. Then, the lifting eye is hoisted by the lifting equipment to lift the device to the specified position, and then the first fastener 6 and the first fixing hole are matched to fix the first counterweight 1 to the specified position on the platform to complete the installation of the device.

[0030] In summary, compared with the prior art, the fastener combination counterweight device for a rotary drilling rig of the utility model has the following advantages and beneficial effects:

[0031] Compared with the traditional integrally filled counterweight, the present device has a better filling degree and more uniform weight distribution because each counterweight block is smaller in volume, and is more convenient to transport with a vehicle. The counterweight blocks are staggered and fixed with fasteners, so the force is more uniform and it is more convenient to install and disassemble. The cooperation between the positioning block 5 and the positioning groove makes the installation of the counterweight block more convenient, and the connection between the counterweight blocks is more stable. In addition, by arranging a connecting sleeve 9 between the fixing hole and the fastener, the connection between the counterweight blocks is more stable, thereby improving the overall stability of the present device.

[0032] 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.

[0033] 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: it is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fastener combined counterweight device for a rotary drilling rig, the fastener combined counterweight device is arranged above the platform, and is characterized in that, The fastener combination counterweight device for a rotary drilling rig includes a first counterweight block fixed to the top of the platform by a first fastener, a second counterweight block arranged above the first counterweight block, and a plurality of third counterweight blocks arranged between the first counterweight block and the second counterweight block, wherein: A plurality of first fixing holes are formed at the bottom of the first counterweight block, the first fastener is connected in the first fixing holes, a plurality of second fixing holes are formed at both ends of the tops of the first counterweight block, the second counterweight block and the third counterweight blocks, and a plurality of positioning grooves are formed in the middle of the tops. The plurality of second fixing holes are symmetrically arranged along the length direction center of the first counterweight block. The second counterweight block and the third counterweight blocks are both provided with positioning blocks matching the positioning grooves at the bottom, and the positioning blocks are arranged in the positioning grooves. The second counterweight block is connected to the second fixing holes at the top of the third counterweight block by a second fastener, and the plurality of third counterweight blocks are connected by the second fastener in cooperation with the second fixing holes. The third counterweight block is connected to the second fixing holes at the top of the first counterweight block by the second fastener, and a lifting eye bolt is arranged in the second fixing holes at the top of the second counterweight block.

2. The fastener combination counterweight device for a rotary drilling rig according to claim 1, characterized in that, Among the first counterweight block, the second counterweight block and the plurality of third counterweight blocks, the second fastener on one of the adjacent counterweight blocks is arranged inside, and the other counterweight block is arranged outside.

3. The fastener combination counterweight device for a rotary drilling rig according to claim 1, wherein Gaskets are arranged between the first fastener and the first fixing hole, and between the second fastener and the second fixing hole.

4. The fastener combination counterweight device for a rotary drilling rig according to claim 1, characterized in that, Connection sleeves are arranged between the first fastener and the first fixing hole, and between the second fastener and the second fixing hole.

5. The fastener combination counterweight device for a rotary drilling rig according to claim 1, characterized in that, The first fastener and the second fastener are both fastening bolts.

6. The fastener combined counterweight device for a rotary drilling rig according to claim 1, characterized in that, The number of the lifting eye bolts is 4 to 8.

7. The fastener combination counterweight device for a rotary drilling rig according to claim 1, characterized in that, The number of the first fixing holes is 4 to 8.

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