A torque and speed testing device for a drilling rig

Abstract

The present disclosure relates to the technical field of torque and rotational speed testing for jumbo drills. The present disclosure provides a torque and rotational speed testing device for a jumbo drill, which includes a base, and a lifting platform is provided on the base; a first torque and rotational speed testing mechanism is arranged on the lifting platform, and the first torque and rotational speed testing mechanism has a first test connection part; a second torque and rotational speed testing mechanism is arranged on the lifting platform, the second torque and rotational speed testing mechanism is located on one side of the first torque and rotational speed testing mechanism, and the second torque and rotational speed testing mechanism has a second test connection part; a transmission connection assembly is arranged on the lifting platform, the transmission connection assembly has a third connection part and a fourth connection part, the third connection part is used to connect with the first test connection part or the second test connection part, and the fourth connection part is used to connect with the drill pipe of the jumbo drill. Through the above technical solution, the technical problem in the related art that it is difficult to test jumbo drills with different torque ranges is solved.

Description

Technical Field

[0001] Embodiments of the present disclosure relate to the technical field of torque and speed testing for drill rigs, and more particularly, to a torque and speed testing device for drill rigs. Background Art

[0002] In engineering operations such as mine exploitation and tunnel excavation, the drill rig is a key piece of equipment, and its working state directly affects the project progress and quality. When the drill rig is operating, the drill rod has to cope with complex and variable working conditions, and the torque and speed are constantly in a dynamic state of change. For example, under different geological conditions, there are significant differences in rock hardness and soil layer structure, and the resistance encountered by the drill rig during drilling is different, resulting in obvious fluctuations in the torque and speed of the drill rod. In hard rock formations, the drill rig needs to output a large torque to overcome the rock resistance, and the speed decreases accordingly; while in softer formations, the rotational speed of the drill rod can be appropriately increased, and the torque requirement decreases. Therefore, during the production and manufacturing process of drill rigs, their torque and speed, as important parameters reflecting their performance, are very important.

[0003] In order to ensure the test accuracy and reduce the test error (the error is very large when the flow measurement system for large torque values is below 10%), the existing torque and speed testing devices for drill rigs generally can only test drill rigs within a certain torque range, that is, drill rigs with smaller torques or drill rigs with larger torques, and it is difficult to fully meet the test requirements of drill rigs with different torques.

[0004] In addition, in the connection between the drill rod of the drill rig and the testing device, in order to improve the connection efficiency and success rate, the requirements for the parking position of the drill rig are often relatively high, which is not conducive to reducing the test difficulty and improving the test efficiency.

[0005] Therefore, there is an urgent practical need to develop a torque and speed testing device for drill rigs that can adapt to different torque ranges of drill rigs and is convenient to connect while ensuring the test accuracy. Summary of the Invention

[0006] To overcome the above-mentioned defects, embodiments of the present disclosure provide a torque and speed testing device for drill rigs, which solves the related technical problems in the torque and speed testing devices for drill rigs.

[0007] According to one aspect, at least one embodiment of the present disclosure provides a torque and speed testing device for drill rigs, including:

[0008] A base, on which there is a lifting platform;

[0009] A first torque and speed testing mechanism, arranged on the lifting platform, the first torque and speed testing mechanism is used to test the torque and speed of the drill rig, and the first torque and speed testing mechanism has a first test connection part;

[0010] The second torque and rotational speed testing mechanism is arranged on the lifting platform. The second torque and rotational speed testing mechanism is used to test the torque and rotational speed of the drill jumbo. The second torque and rotational speed testing mechanism is located on one side of the first torque and rotational speed testing mechanism. The second torque and rotational speed testing mechanism has a second test connection part. The first test connection part and the second test connection part are located on the same side of the lifting platform. The minimum value of the torque testing range of the second torque and rotational speed testing mechanism is less than the minimum value of the torque testing range of the first torque and rotational speed testing mechanism;

[0011] The transmission connection assembly is horizontally slidably arranged on the lifting platform and is used to transmit the torque and rotational speed of the drill jumbo to the first torque and rotational speed testing mechanism or the second torque and rotational speed testing mechanism. The transmission connection assembly has a third connection part and a fourth connection part. The third connection part is used to connect with the first test connection part or the second test connection part. The fourth connection part is used to connect with the drill pipe of the drill jumbo.

[0012] For example, in a torque and rotational speed testing device for a drill jumbo provided by at least one embodiment of the present disclosure, the transmission connection assembly includes a first transmission shaft, a second transmission shaft, and a third transmission shaft that are connected in sequence;

[0013] The fourth connection part is arranged at the outer end of the first transmission shaft. The third connection part is arranged at the outer end of the third transmission shaft. The inner end of the first transmission shaft is connected to the second transmission shaft through a universal joint. The inner end of the third transmission shaft is connected to the second transmission shaft through a universal joint.

[0014] For example, in a torque and rotational speed testing device for a drill jumbo provided by at least one embodiment of the present disclosure, the transmission connection assembly further includes:

[0015] A sliding member is horizontally slidably arranged on the lifting platform. The sliding member is configured to slide closer to the first test connection part or closer to the second test connection part after sliding;

[0016] A lifting assembly is arranged on the sliding member;

[0017] A horizontally penetrating lifting ring is arranged on the lifting assembly. The second transmission shaft is rotatably and slidably arranged in the lifting ring.

[0018] For example, in a torque and rotational speed testing device for a drill jumbo provided by at least one embodiment of the present disclosure,

[0019] The top of the lifting assembly has a lifting frame. The upper part of the lifting ring is connected to the lifting frame through a lifting rope.

[0020] For example, in a torque and rotational speed testing device for a drill jumbo provided by at least one embodiment of the present disclosure,

[0021] The hanger is provided with a supporting member, and there are two supporting members, which are respectively located on both sides of the hanging ring, and the supporting member is used to support the second transmission shaft.

[0022] For example, at least one embodiment of the present disclosure provides a torque and speed testing device for a drilling vehicle, wherein the supporting member includes:

[0023] An arc-shaped guide rail, one end of which is rotatably arranged on the hanger, and the other end of which is a clamping end, and the clamping end is used to be clamped on the hanger, and the arc-shaped guide rail is configured to be in a vertical yielding state or a horizontal supporting state after rotation;

[0024] A supporting block having a recessed portion, the recessed portion being used to accommodate and support the second transmission shaft, the supporting block being slidably disposed on the arc-shaped guide rail, and the supporting block being able to slide along the arc-shaped guide rail following the horizontal swing of the second transmission shaft.

[0025] For example, at least one embodiment of the present disclosure provides a torque and speed testing device for a drilling vehicle.

[0026] The lifting ring is provided with a fastening nut, the internal thread of the fastening nut is connected with a tightening screw, and the tightening screw is used to tighten the second transmission shaft.

[0027] For example, at least one embodiment of the present disclosure provides a torque and speed testing device for a drilling vehicle.

[0028] The inner diameter of the lifting ring is larger than the diameter of the second transmission shaft, and the length of the lifting rope is adjustable.

[0029] For example, at least one embodiment of the present disclosure provides a torque and speed testing device for a drilling vehicle.

[0030] The lifting platform has at least three lifting support legs, and the at least three lifting support legs are distributed in a triangular shape.

[0031] For example, at least one embodiment of the present disclosure provides a torque and speed testing device for a drilling vehicle, wherein the first torque and speed testing mechanism includes a first coupling, a first torque and speed sensor, a reduction gearbox, an eddy current dynamometer, and a magnetic powder brake connected in sequence, and the first test connection portion is arranged on the first coupling;

[0032] The second torque-speed testing mechanism includes a second coupling, a second torque-speed sensor, a second reduction gearbox, and a second eddy current dynamometer which are connected in sequence, and the second test connection portion is arranged on the second coupling.

[0033] The beneficial effects of the embodiments of the present disclosure are:

[0034] In the present disclosure, the first torque and rotational speed testing mechanism is used to test jumbo drills with large torques (the torque range is generally 2000 - 10,000 N·m), and the second torque and rotational speed testing mechanism is used to test jumbo drills with small torques (the torque range is generally 0 - 2000 N·m). The first torque and rotational speed testing mechanism and the second torque and rotational speed testing mechanism are both provided on the lifting platform. When a drill with a smaller torque needs to be tested, the second torque and rotational speed testing mechanism is applied; when a drill with a larger torque needs to be tested, the first torque and rotational speed testing mechanism is applied. By connecting the drill rod of the drill to the fourth connection part of the transmission connection assembly, the third connection part of the transmission connection assembly is selectively connected to the first test connection part or the second test connection part as required, thereby completing the connection operation before the torque and rotational speed test of the jumbo drill (since connection to the first test connection part or the second test connection part can be completed through the transmission connection assembly, the drill rod of the jumbo drill only needs to be connected to the fourth connection part of the transmission connection assembly, without changing the test position). By setting two torque and rotational speed testing mechanisms with different torque test ranges as above, a suitable testing mechanism can be selected according to the actual torque test requirements of the jumbo drill, improving the test accuracy and applicability. The height of the lifting platform can be adjusted to meet the test requirements of jumbo drills with different heights. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] To more clearly illustrate the technical solutions in the embodiments of the present disclosure, the following briefly introduces the drawings required for the description in the embodiments of the present disclosure. Obviously, the drawings in the following description are only some exemplary embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the content of the exemplary embodiments of the present disclosure and these drawings.

[0036] Figure 1 Schematic perspective structure of a torque and rotational speed testing device for a jumbo drill in an embodiment of the present disclosure Figure 1 ;

[0037] Figure 2 is Figure 1 the enlarged partial structure schematic diagram at A in

[0038] Figure 3 is Figure 1 the schematic perspective structure in the embodiment of Figure 2 ;

[0039] Figure 4 is Figure 1 the schematic diagram of the structure when the arc-shaped guide rail is in the vertical retracted state in the embodiment of

[0040] Figure 5 is Figure 4 the enlarged partial structure schematic diagram of B in

[0041] In the figure: 1 - base, 2 - lifting platform, 21 - lifting support leg, 3 - first torque and speed testing mechanism, 31 - first test connection part, 32 - first coupling, 33 - first torque and speed sensor, 34 - reduction gearbox, 35 - eddy current dynamometer, 36 - magnetic particle brake, 4 - second torque and speed testing mechanism, 41 - second test connection part, 42 - second coupling, 43 - second torque and speed sensor, 44 - second reduction gearbox, 45 - second eddy current dynamometer, 5 - transmission connection assembly, 51 - third connection part, 52 - fourth connection part, 53 - first transmission shaft, 54 - second transmission shaft, 55 - third transmission shaft, 56 - sliding part, 57 - lifting assembly, 58 - lifting ring, 581 - fastening nut, 582 - jacking screw, 59 - hanger, 510 - lifting rope, 511 - supporting part, 512 - arc guide rail, 513 - supporting block, 514 - recessed part, 6 - loading test system. Detailed implementation mode

[0042] The present disclosure will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present disclosure, rather than limiting the present disclosure.

[0043] For the sake of simplicity of the drawing, only the parts related to the disclosure are schematically shown in each figure, and they do not represent their actual structures as products. In addition, for the sake of simplicity and easy understanding of the drawing, in some figures, parts with the same structure or function are only schematically shown for one of them, or only one of them is marked. In this article, "one" not only means "only this one", but also can mean "more than one" situation, and "several" includes "two" and "more than two".

[0044] In this article, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present disclosure can be understood according to specific situations.

[0045] In this disclosure, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may include direct contact between the first and second features, or may include the first and second features not being in direct contact but in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and diagonally above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and diagonally below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0046] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "left", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to this disclosure.

[0047] In addition, in the description of this application, terms such as "first", "second", etc. are only used for distinguishing descriptions, and should not be construed as indicating or implying relative importance.

[0048] As Figures 1 to 5 shown, it shows a torque and rotational speed testing device for a drill rig in an embodiment of this disclosure, including a base 1, on which there is a lifting platform 2, and on the lifting platform 2 there are arranged a first torque and rotational speed testing mechanism 3, a second torque and rotational speed testing mechanism 4 and a transmission connection assembly 5. Both the first torque and rotational speed testing mechanism 3 and the second torque and rotational speed testing mechanism 4 are used to test the torque and rotational speed of the drill rig. The first torque and rotational speed testing mechanism 3 has a first test connection part 31; the second torque and rotational speed testing mechanism 4 is located on one side of the first torque and rotational speed testing mechanism 3, and the second torque and rotational speed testing mechanism 4 has a second test connection part 41. The minimum value of the torque testing range of the second torque and rotational speed testing mechanism 4 is less than the minimum value of the torque testing range of the first torque and rotational speed testing mechanism 3; the transmission connection assembly 5 has a third connection part 51 and a fourth connection part 52. The third connection part 51 is used to connect with the first test connection part 31 or the second test connection part 41, and the fourth connection part 52 is used to connect with the drill pipe of the drill rig.

[0049] The first torque and speed testing mechanism 3 is used to test jumbo drills with large torques (the torque range is generally 2,000 - 10,000 N·m), and the second torque and speed testing mechanism 4 is used to test jumbo drills with small torques (the torque range is generally 0 - 2,000 N·m). The first torque and speed testing mechanism 3 and the second torque and speed testing mechanism 4 are both arranged on the lifting platform 2. When a drill with a smaller torque needs to be tested, the second torque and speed testing mechanism is applied; when a drill with a larger torque needs to be tested, the first torque and speed testing mechanism is applied. By connecting the drill rod of the drill to the fourth connecting part 52 of the transmission connection assembly 5, the third connecting part 51 of the transmission connection assembly 5 is selectively connected to the first test connecting part 31 or the second test connecting part 41 as required, thus completing the connection operation before the torque and speed test of the jumbo drill (since the connection to the first test connecting part 31 or the second test connecting part 41 can be completed through the transmission connection assembly 5, the drill rod of the jumbo drill only needs to be connected to the fourth connecting part 52 of the transmission connection assembly 5, without changing the test position). By setting two torque and speed testing mechanisms with different torque test ranges as above, a suitable testing mechanism can be selected according to the actual torque test requirements of the jumbo drill, improving the test accuracy and applicability. The lifting platform can adjust the device height to meet the test requirements of jumbo drills at different heights.

[0050] In some examples, the transmission connection assembly 5 includes a first transmission shaft 53, a second transmission shaft 54, and a third transmission shaft 55 connected in sequence; the fourth connecting part 52 is arranged at the outer end of the first transmission shaft 53 (the outer end of the first transmission shaft 53 is the end away from the second transmission shaft 54), the third connecting part 51 is arranged at the outer end of the third transmission shaft 55 (the outer end of the third transmission shaft 55 is the end away from the second transmission shaft 54), the inner end of the first transmission shaft 53 is connected to the second transmission shaft 54 through a universal joint, and the inner end of the third transmission shaft 55 is connected to the second transmission shaft 54 through a universal joint.

[0051] For example, as Figure 2 shown, the first transmission shaft 53, the second transmission shaft 54, and the third transmission shaft 55 are connected in a form of universal joints as a whole. One end (with the third connecting part 51) is used to connect to the first test connecting part 31 or the second test connecting part 41, and the other end (with the fourth connecting part 52) is used to connect to the drill rod of the jumbo drill. Due to its overall flexibility, the connection can be completed when the drill rod of the jumbo drill moves to an approximate position, reducing the requirements for the moving position of the jumbo drill and improving the connection and test efficiency.

[0052] In some examples, the transmission connection assembly 5 further includes a sliding member 56 and a lifting assembly 57. The sliding member 56 is slidably disposed on the lifting platform 2 and is configured to move closer to the first test connection portion 31 or the second test connection portion 41 after sliding; a lifting assembly 57 is provided on the sliding member 56, and a lifting ring 58 is provided on the lifting assembly 57. A part of the second transmission shaft 54 is rotatably and slidably disposed within the lifting ring 58.

[0053] For example, as Figure 1 and Figure 2 shown, moving the sliding member 56 can choose to be closer to the first test connection portion 31 or the second test connection portion 41, so as to complete the connection according to the test requirements. A part of the second transmission shaft 54 is rotatably and slidably disposed within the lifting ring 58. The operator only needs to take and operate the first transmission shaft 53 to complete the connection with the drill pipe of the drill rig, or take and operate the third transmission shaft 55 to complete the connection with the first test connection portion 31 or the second test connection portion 41, reducing the difficulty of the connection operation. In addition, the lifting ring 58 is suspended on the lifting assembly 57 and can swing flexibly at various angles, only acting to bear the gravity of the second transmission shaft 54, which can meet the need for the installation angle and further facilitate the connection operation of the operator.

[0054] In some examples, the lifting assembly 57 has a hanging frame 59, and the upper part of the lifting ring 58 is connected to the hanging frame 59 through a suspension rope 510.

[0055] For example, as Figure 2 and Figure 5 shown, the hanging frame 59 is used to suspend and install the lifting ring 58 through the suspension rope 510. Under the action of the suspension rope 510, the lifting ring 58 has a large degree of freedom, that is, it can swing in various angular directions such as front, back, left, right, up and down, so as to meet the need for the second transmission shaft 54 to swing at various angles, reducing the limitation of the operator's connection operation at different angles and improving the operation convenience.

[0056] In some examples, the hanging frame 59 has supporting members 511. There are two supporting members 511, and the two supporting members 511 are respectively located on both sides of the lifting ring 58. The supporting members 511 are used to support or cancel the support of the second transmission shaft 54.

[0057] For example, as Figure 1 and Figure 5 shown, in the natural state, the second transmission shaft 54 is generally in a skewed state on the lifting ring 58 and its position is not so stable. The supporting members 511 can support the parts of the second transmission shaft 54 on both sides of the lifting ring 58, so that the second transmission shaft 54 is in a partially horizontal state. According to the need of the connection position, when operating the second transmission shaft 54 to slide within the lifting ring 58, it will be more convenient and labor-saving due to the supporting effect of the supporting members 511.

[0058] In some examples, the supporting member 511 includes an arc-shaped guide rail 512 and a supporting block 513. One end of the arc-shaped guide rail 512 is rotatably arranged on the hanging bracket 59, and the other end is a clamping end for clamping on the hanging bracket 59. The arc-shaped guide rail 512 is configured to be in a vertical yielding state or a horizontal supporting state after rotation; the supporting block 513 has a recess 514 for accommodating and supporting the second transmission shaft 54. The supporting block 513 is slidably arranged on the arc-shaped guide rail 512 and can slide along the arc-shaped guide rail 512 following the horizontal swing of the second transmission shaft 54.

[0059] For example, as Figure 1 and Figure 5 shown, when the arc-shaped guide rail 512 is in the horizontal supporting state, the second transmission shaft 54 can be stably supported by the supporting block 513, and the supporting block 513 is slidably arranged on the arc-shaped guide rail 512. Then, when the second transmission shaft 54 swings in the horizontal direction, the lower supporting block 513 can slide accordingly (the supporting block 513 slides along the arc-shaped track direction of the arc-shaped guide rail 512), improving the convenience of operation and making it easier for the operator to rotate the second transmission shaft 54 when connection is required.

[0060] In some examples, the hanging ring 58 has a fastening nut 581, and a jacking screw 582 is threadedly connected to the fastening nut 581. One end of the jacking screw 582 is a jacking end and extends into the hanging ring 58, and the jacking end is used to jack up the second transmission shaft 54.

[0061] For example, as Figure 5 shown, the jacking screw 582 can jack up the second transmission shaft 54 after sliding it to a proper position to prevent further sliding. Then, the fourth connecting portion 52 and the third connecting portion 51 are operated for corresponding connection. After the connection is completed, the jacking screw 582 cancels the jacking of the second transmission shaft 54, restoring the ability of the second transmission shaft 54 to rotate freely, so as to meet the torque and speed requirements of the subsequent transmission test of the drill rig.

[0062] In some examples, the inner diameter of the hanging ring 58 is larger than the diameter of the second transmission shaft 54, and the length of the suspension rope 510 is adjustable.

[0063] For example, as Figure 5 shown, since the inner diameter of the hanging ring 58 is larger than the diameter of the second transmission shaft 54, when the second transmission shaft 54 rotates, by adjusting the length of the suspension rope 510 (it can be a wire wheel, and the length is adjusted by adjusting the winding and unwinding), contact between the hanging ring 58 and the second transmission shaft 54 can be avoided (at this time, the hanging ring 58 does not bear the weight of the second transmission shaft 54), reducing the rotational friction and further improving the test accuracy and reducing errors.

[0064] In some examples, the lifting platform 2 has at least three lifting support legs 21, and the at least three lifting support legs 21 are distributed in a triangular orientation.

[0065] For example, as Figure 1 and Figure 3 shown, each lifting support leg 21 is controlled individually. By adjusting the height of each lifting support leg 21 at different levels, the attitude of the lifting platform 2 can be adjusted, so as to adapt to the connection between the transmission connection assembly 5 and the drill pipe of the drill rig, ensure the consistency of the speeds of the first transmission shaft 53 and the third transmission shaft 55, and further improve the test accuracy.

[0066] In some examples, the first torque and speed testing mechanism 3 includes a first coupling 32, a first torque and speed sensor 33, a reduction gearbox 34, an eddy current dynamometer 35, and a magnetic particle brake 36 that are connected in sequence. The first coupling 32 has a first test connection portion 31; the second torque and speed testing mechanism 4 includes a second coupling 42, a second torque and speed sensor 43, a second reduction gearbox 44, and a second eddy current dynamometer 45 that are connected in sequence. The second coupling 42 has a second test connection portion 41.

[0067] For example, as Figure 1 shown, the first torque and speed testing mechanism 3 and the second torque and speed testing mechanism 4 respectively implement the testing of the torque and speed of the drill rig through the first torque and speed sensor 33 and the second torque and speed sensor 43. When it is necessary to perform a test on the first torque and speed testing mechanism 3 or the second torque and speed testing mechanism 4, select the first torque and speed testing mechanism 3 or the second torque and speed testing mechanism 4 to be connected to the loading test system 6 through a circuit (the loading test system 6 is used to display and control the test status). One loading test system 6 can complete the test, and both the first torque and speed testing mechanism 3 and the second torque and speed testing mechanism 4 are located on the lifting platform 2, reducing the floor area, adapting to the torque and speed testing of drill rigs with different torque sizes, improving convenience and reducing costs.

[0068] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure and are not restrictive. Although the present disclosure has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present disclosure can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present disclosure, and they should all be covered within the scope of the claims of the present disclosure.

Claims

1. A torque and speed testing device for a drilling rig, characterized in that, Comprising: A base (1) with a lifting platform (2) thereon; A first torque and rotational speed testing mechanism (3) disposed on the lifting platform (2), the first torque and rotational speed testing mechanism (3) being used to test the torque and rotational speed of a drill jumbo, the first torque and rotational speed testing mechanism (3) having a first test connection portion (31); A second torque and rotational speed testing mechanism (4) disposed on the lifting platform (2), the second torque and rotational speed testing mechanism (4) being used to test the torque and rotational speed of a drill jumbo, the second torque and rotational speed testing mechanism (4) being located on one side of the first torque and rotational speed testing mechanism (3), the second torque and rotational speed testing mechanism (4) having a second test connection portion (41), the first test connection portion (31) and the second test connection portion (41) being on the same side of the lifting platform (2), and the minimum value of the torque testing range of the second torque and rotational speed testing mechanism (4) being less than the minimum value of the torque testing range of the first torque and rotational speed testing mechanism (3); A transmission connection assembly (5) horizontally slidably disposed on the lifting platform (2) for transmitting the torque and rotational speed of a drill jumbo to the first torque and rotational speed testing mechanism (3) or the second torque and rotational speed testing mechanism (4), the transmission connection assembly (5) having a third connection portion (51) and a fourth connection portion (52), the third connection portion (51) being used to connect with the first test connection portion (31) or the second test connection portion (41), and the fourth connection portion (52) being used to connect with the drill pipe of a drill jumbo.

2. The torque and speed test device for a drilling rig according to claim 1, characterized in that, The transmission connection assembly (5) includes a first transmission shaft (53), a second transmission shaft (54) and a third transmission shaft (55) connected in sequence; The fourth connection portion (52) is disposed at the outer end of the first transmission shaft (53), the third connection portion (51) is disposed at the outer end of the third transmission shaft (55), the inner end of the first transmission shaft (53) is connected to the second transmission shaft (54) through a universal joint, and the inner end of the third transmission shaft (55) is connected to the second transmission shaft (54) through a universal joint.

3. The torque and speed test device for a drilling rig according to claim 2, wherein The transmission connection assembly (5) further includes: A sliding member (56) horizontally slidably disposed on the lifting platform (2), the sliding member (56) being configured to slide closer to the first test connection portion (31) or closer to the second test connection portion (41); A lifting assembly (57) disposed on the sliding member (56); A horizontally penetrating lifting ring (58) is disposed on the lifting assembly (57), and the second transmission shaft (54) is rotatably and slidably disposed within the lifting ring (58).

4. A torque and rotational speed testing device for a drill jumbo according to claim 3, wherein The top of the lifting assembly (57) has a lifting frame (59), and the upper portion of the lifting ring (58) is connected to the lifting frame (59) through a lifting rope (510).

5. A torque and rotational speed testing device for a drill jumbo according to claim 4, wherein The hanger (59) has a supporting member (511), and there are two supporting members (511). The two supporting members (511) are respectively located on both sides of the hanging ring (58), and the supporting members (511) are used to support the second transmission shaft (54).

6. The torque and rotational speed testing device for a drilling rig according to claim 5, characterized in that, The supporting member (511) comprises: An arc-shaped guide rail (512), one end of which is rotatably disposed on the hanger (59), and the other end of which is a clamping end, the clamping end being used to be clamped on the hanger (59), the arc-shaped guide rail (512) being configured to be in a vertical yielding state or a horizontal supporting state after rotation; A supporting block (513), wherein the supporting block (513) has a recessed portion (514), wherein the recessed portion (514) is used to accommodate and support the second transmission shaft (54), and wherein the supporting block (513) is slidably disposed on the arc-shaped guide rail (512), and wherein the supporting block (513) can slide along the arc-shaped guide rail (512) following the horizontal swing of the second transmission shaft (54).

7. The torque and speed testing device for a drilling vehicle according to claim 6, characterized in that: The lifting ring (58) is provided with a fastening nut (581), the fastening nut (581) is internally threadedly connected to a tightening screw (582), and the tightening screw (582) is used to tighten the second transmission shaft (54).

8. The torque and speed testing device for a drilling vehicle according to claim 4, characterized in that: The inner diameter of the lifting ring (58) is greater than the diameter of the second transmission shaft (54), and the length of the lifting rope (510) is adjustable.

9. The torque and speed testing device for a drilling vehicle according to claim 1, characterized in that: The lifting platform (2) has at least three lifting support legs (21), and the at least three lifting support legs (21) are distributed in a triangular shape.

10. A torque and speed test device for a drilling rig according to claim 1, characterized in that, The first torque and speed testing mechanism (3) comprises a first coupling (32), a first torque and speed sensor (33), a reduction box (34), an eddy current dynamometer (35) and a magnetic powder brake (36) which are connected in sequence, and the first test connection part (31) is arranged on the first coupling (32); The second torque and speed testing mechanism (4) comprises a second coupling (42), a second torque and speed sensor (43), a second reduction gearbox (44) and a second eddy current dynamometer (45) which are connected in sequence, and the second test connection portion (41) is arranged on the second coupling (42).

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