A push beam of a drilling rig and a drilling rig

Abstract

The utility model relates to the technical field of engineering construction equipment, more specifically to the push beam used to drive the moving of the perforating equipment in the drilling machine, it includes the main beam and the supporting plate for the installation of perforating equipment, and the supporting plate is slidably installed on the main beam, the main beam is connected with the drive device, and the drive device has the output shaft with the output rotary power, the output shaft is drivingly connected with the screw rod shaft spare that rotates along with the output shaft, the moving sleeve is sleeved on the screw rod shaft spare, and the moving sleeve is configured to be screwed with the screw rod shaft spare to move on the screw rod shaft spare along with the rotation of the screw rod shaft spare, the outer wall of the moving sleeve has the outward protruding bolt part, the supporting plate has the insertion hole matched with the bolt part, the bolt part is inserted into the insertion hole in the direction perpendicular to the screw rod shaft spare axis, and the insertion hole also has the space for the bolt part to move in the insertion hole in the direction perpendicular to the screw rod shaft spare axis, so as to form the push beam that can improve the service life by optimizing the connecting structure.

Description

Technical Field

[0001] This utility model relates to the field of engineering construction equipment technology, and more specifically to a propulsion beam used in drilling rigs to drive drilling equipment. Background Technology

[0002] In construction projects such as highways and high-speed railways (e.g., tunnel construction during subway development), drilling operations are often required in mountains or underground, necessitating the use of drilling rigs. Drilling rigs typically consist of drilling equipment (e.g., rock drills) and a propulsion beam that drives the drilling equipment in a linear motion. With increasing usage, the components within the propulsion beam that drive the drilling equipment are prone to damage or even breakage, resulting in a shorter lifespan for the propulsion beam, which needs improvement. Utility Model Content

[0003] One of the purposes of this invention is to address the shortcomings of existing technologies by providing a propulsion beam with an optimized connection structure that can improve service life.

[0004] The second objective of this utility model is to provide a drilling rig with the aforementioned propulsion beam.

[0005] The overall technical solution of this utility model is as follows:

[0006] This invention addresses the problem of improving the service life of the propulsion beam in existing drilling rigs. Specifically, the propulsion beam typically includes a main beam, on which a support plate for mounting drilling equipment (such as a rock drill) is slidably installed. It also includes a moving mechanism, such as a screw drive mechanism, to move the support plate. During use, the drilling equipment, mounted on the support plate, slides along with the plate, thus propelling the propulsion beam to perform the drilling action. Because the rock drill generates significant vibration during drilling, this vibration can easily damage the moving mechanism (such as the screw shaft mentioned below), thereby affecting the overall service life of the propulsion beam.

[0007] Based on this, the present invention proposes a propulsion beam for a drilling rig, which includes a main beam and a support plate for mounting the drilling equipment, the support plate being slidably mounted on the main beam;

[0008] A drive device is connected to the main beam, which has an output shaft that outputs rotational power. The output shaft is connected to a lead screw that rotates synchronously with the output shaft.

[0009] A movable sleeve is fitted onto the lead screw shaft, and the movable sleeve is configured to be screwed onto the lead screw shaft so as to move on the lead screw shaft as the lead screw shaft rotates;

[0010] The outer wall of the movable sleeve has an outwardly protruding pin portion, and the support plate has a matching insertion hole provided with the pin portion;

[0011] In a direction perpendicular to the axis of the lead screw shaft, the pin is inserted into the insertion hole so that the movable sleeve drives the support plate to move.

[0012] Furthermore, in the direction perpendicular to the axis of the lead screw shaft, the insertion hole also has space for the pin to move within the insertion hole.

[0013] In the above scheme, firstly, the drive device, lead screw shaft, and movable sleeve together constitute a lead screw drive mechanism that drives the pallet to move. When a drilling device is connected to the pallet, the characteristics of the lead screw drive mechanism can stably drive the drilling device to perform drilling movement. Secondly, considering the usage requirements of assembling the drilling device, the drilling device easily transmits a radial vibration to the lead screw shaft. This vibration can easily cause the lead screw shaft to deviate or even bend, which will cause significant damage to its service life and greatly shorten the service life of the propulsion beam. Therefore, in this utility model, the movable sleeve on the lead screw shaft and the pallet adopt a movable plug-in fit, and the movable plug-in fit is made in a direction perpendicular to the axis of the lead screw shaft. When the pallet vibrates (when the pallet is connected to the drilling device and vibrates with the drilling action of the drilling device), the movable plug-in structure can alleviate the vibration transmitted to the lead screw shaft (especially the radial vibration of the lead screw shaft), reduce the vibration damage to the lead screw shaft, enable the lead screw shaft to operate more stably for a longer period of time, and improve the overall service life of the propulsion beam.

[0014] In some embodiments, the lead screw shaft includes, in the axial direction, a threaded shaft segment having threads for screwing into a movable sleeve, and a first mounting shaft segment and a second mounting shaft segment disposed on both sides of the threaded shaft segment;

[0015] The first mounting shaft section is fitted with a first support bearing, and the second mounting shaft section is fitted with a second support bearing.

[0016] Both the first and second support bearings are installed in the main beam to jointly support the rotatable lead screw shaft.

[0017] By using two support bearings, a more stable support can be provided for the lead screw shaft, improving the installation and operation stability of the lead screw shaft, and thus enabling a smoother and more stable drive of the tray on which the drilling equipment is mounted; thus, when the drilling equipment is mounted on the tray for drilling operations, the drilling equipment can be driven to move more smoothly.

[0018] Based on the above scheme, considering that when the lead screw shaft rotates to drive the moving sleeve to move, and then to drive the pallet to move, the lead screw shaft will be subjected to a reaction force in its axial direction (in the opposite direction to the direction of the pallet's movement), and this reaction force will apply a load to the lead screw shaft; moreover, long shafts tend to be more likely to exert their load-bearing potential under tensile conditions, while they are more likely to be limited by the risk of instability under compression (prone to buckling instability, similar to a slender rod being bent).

[0019] In some embodiments, the main beam has: a first insertion channel for inserting a first mounting shaft segment, and a second insertion channel for inserting a second mounting shaft segment;

[0020] The first support bearing is positioned and accommodated in the first insertion channel. The first mounting shaft section includes an outwardly protruding first locking part, and the inner wall of the first insertion channel has a protruding first limiting part.

[0021] In the axial direction of the lead screw shaft, the first locking part is placed on the side of the first support bearing facing away from the threaded shaft section, while the first limiting part is placed on the side of the first support bearing facing the threaded shaft section.

[0022] The second support bearing is positioned and accommodated in the second insertion channel. The second mounting shaft section includes an outwardly protruding second locking part, and the inner wall of the second insertion channel has a protruding second limiting part.

[0023] In the axial direction of the lead screw shaft, the second locking part is placed on the side of the second support bearing facing away from the threaded shaft section, while the second limiting part is placed on the side of the second support bearing facing the threaded shaft section.

[0024] Furthermore, in the axial direction of the lead screw shaft, the end face of the first mounting shaft section facing away from the threaded shaft section, and the end face of the second mounting shaft section facing away from the threaded shaft section are both configured to not contact the main beam and the drive device.

[0025] With the above-mentioned structure, the reaction force received by the lead screw shaft when driving the pallet to move will form an axial tensile force that stretches the lead screw shaft axially, rather than a squeezing force that compresses it axially. This can further reduce the risk of deformation of the lead screw shaft during long-term use, thereby enabling the lead screw shaft to operate more stably for a longer period of time and improving the overall service life of the propulsion beam.

[0026] In some embodiments, one end of the lead screw shaft has a first insertion hole with an opening facing the output shaft;

[0027] The output shaft is inserted into the first insertion hole to drive the lead screw shaft to rotate, and the end face of the output shaft insertion end is spaced apart from the inner wall of the first insertion hole along the axial direction of the lead screw shaft.

[0028] In some embodiments, the second mounting shaft segment includes: a second mounting shaft body, and a second limiting nut fitted on the second mounting shaft body;

[0029] The second limiting nut is located on the side of the second support bearing facing away from the drive device, and is detachably positioned on the second mounting shaft by means of a threaded structure. The second limiting nut has a second locking part. By removing the second limiting nut, the second support bearing can be assembled more easily, and the second locking part can also be easily maintained or replaced later.

[0030] In some embodiments, the first mounting shaft segment includes: a first mounting shaft body, and a first limiting nut fitted on the first mounting shaft body;

[0031] The first limiting nut is located on the side of the first support bearing facing the drive device and is detachably positioned on the first mounting shaft by means of a threaded structure. The first limiting nut has a first locking part. By removing the first limiting nut, the first support bearing can be assembled more easily, and the first locking part can also be easily maintained or replaced later.

[0032] In some embodiments, the lead screw shaft includes: a connecting body and a lead screw body;

[0033] One end of the connector is driven to the output shaft, and the other end is detachably driven to the lead screw body. The movable sleeve is configured to fit onto the lead screw body and be screwed to it. This facilitates the disassembly, maintenance, or replacement of the threaded and easily damaged lead screw body.

[0034] Furthermore, in some embodiments, the other end of the connector has a second insertion hole with an opening facing the lead screw body;

[0035] The lead screw body has an insert portion that is inserted into the second insertion hole;

[0036] A detachable pin is inserted into the connecting body. One end of the pin passes through the side wall of the second insertion hole and is inserted into the insertion part of the lead screw body, so that the connecting body is detachably connected to the lead screw body. The pin-connection structure further improves the ease of disassembling the lead screw body by connecting the lead screw body to the connecting body.

[0037] In some embodiments, the insertion hole is configured as a through hole in the support plate. This facilitates observation of the insertion status of the pin; in particular, it facilitates inspection and maintenance when the pin is stuck in the insertion hole.

[0038] Based on the aforementioned propulsion beam, this utility model also proposes a drilling rig having the propulsion beam of any of the above-described embodiments.

[0039] The main beneficial effects of the above technical solution are as follows:

[0040] 1. A lead screw drive mechanism, consisting of a drive unit, lead screw shaft, and moving sleeve, achieves high-precision linear transmission of the pallet. When the pallet is equipped with a drilling device, the inherent characteristics of the lead screw drive ensure the consistency of the drilling device's trajectory and positional accuracy during movement, effectively reducing drilling deviations caused by backlash or jamming in traditional transmission methods and improving processing quality.

[0041] 2. To address the radial vibration issue generated during drilling equipment operation, a movable insertion fit is made between the sliding sleeve on the lead screw shaft and the support plate in a direction perpendicular to the axis of the lead screw shaft. This insertion fit allows the support plate to make slight displacements relative to the sliding sleeve along the radial direction of the lead screw shaft when vibration occurs. This non-rigid contact buffers the vibration energy, reducing the vibration directly transmitted to the lead screw shaft. This significantly reduces the bending stress and fatigue damage risk of the lead screw shaft, improves its long-term operational stability, and thus extends the overall service life of the propulsion beam. Attached Figure Description

[0042] The present invention will be further described below with reference to the accompanying drawings:

[0043] Figure 1 This is a schematic diagram of the overall structure of the drilling rig.

[0044] Figure 2 To advance the schematic diagram of the beam section.

[0045] Figure 3 for Figure 2 An enlarged schematic diagram of part A in the middle.

[0046] Figure 4 for Figure 2 Enlarged diagram of part B.

[0047] Figure 5 This is a schematic diagram of the lead screw shaft structure. Detailed Implementation

[0048] The present invention will be illustrated with specific examples below:

[0049] Example 1:

[0050] The propulsion beam is used to mount the drilling equipment 9 (e.g., a rock drill) in the drilling rig and to drive the drilling equipment 9 (e.g., a rock drill) to move.

[0051] As attached Figure 1As shown, the device includes a main beam 1 serving as a housing for mounting components, and a support plate 2 for mounting a drilling device 9 (e.g., a rock drill). The support plate 2 is slidably mounted on the main beam 1 via a sliding mounting structure, allowing it to move directionally on the main beam 1. For example, the main beam 1 has a linearly extending groove, and the support plate 2 has a slider adapted to be inserted into and slide within the groove, thereby allowing the support plate 2 to be slidably mounted on the main beam 1.

[0052] As attached Figure 2 As shown, a drive device 3, which is a motor or rotary motor, is fixed to the left end of the main beam 1 by means of, for example, screws. The drive device 3 has an output shaft 3.1 for outputting rotational power, and the output shaft 3.1 is inserted into the main beam 1. Furthermore, the main beam 1 has a lead screw 4 extending in the left-right direction. The lead screw 4 is rotatably mounted in the main beam 1, and one end of the lead screw 4 is connected to the output shaft 3.1 for transmission, so that the drive device 3 drives the output shaft 3.1 to rotate, thereby driving the lead screw 4 to rotate.

[0053] A movable sleeve 5 is also fitted on the lead screw shaft 4. The inner wall of the movable sleeve 5 is provided with an internal thread, and the outer circumference of the lead screw shaft 4 is provided with an external thread that is screwed into the internal thread. The internal thread of the movable sleeve 5 is screwed into the external thread of the lead screw shaft 4 so that when the lead screw shaft 4 rotates in the forward / reverse direction, it can drive the movable sleeve 5 to move left / right in the axial direction of the lead screw shaft 4.

[0054] As attached Figure 2 As shown, the movable sleeve 5 has an upwardly protruding pin portion 5.1 on the upper outer side wall, and the support plate 2 has a portion positioned above the lead screw shaft 4, which is vertically opposite to the pin portion 5.1 and has a matching insertion hole 2.1 provided with the pin portion 5.1.

[0055] In the direction perpendicular to the axis of the lead screw shaft 4, that is, when the axis of the lead screw shaft 4 is as shown in the attached figure... Figure 2 As shown by the dotted line, when extending in the left-right direction, the pin 5.1 is inserted upward into the insertion hole 2.1 in the up-down direction, so that the movable sleeve 5 can drive the support plate 2 to move. At this time, the sliding direction of the support plate 2 on the main beam 1 is in line with the extension direction of the axis of the lead screw shaft 4 (this line means that the sliding direction of the support plate 2 on the main beam 1 and the extension direction of the axis of the lead screw shaft 4 are preferably arranged in the same way, for example, both are in the left-right direction, but angular deviations that do not affect the sliding of the support plate 2 are allowed). For example, when the axis of the lead screw shaft 4 extends in the left-right direction, the support plate 2 slides on the main beam 1 in the left-right direction.

[0056] Furthermore, in the direction perpendicular to the axis of the lead screw shaft 4, the insertion hole 2.1 also has space for the pin portion 5.1 to move within the insertion hole 2.1. For example, the pin portion 5.1 is a column adapted to the insertion hole 2.1, and the outer diameter profile of the pin portion 5.1 matches the diameter profile of the insertion hole 2.1. The outer diameter dimension of the pin portion 5.1 matches the diameter of the insertion hole 2.1 so that the pin portion 5.1 can be inserted and removed within the insertion hole 2.1. Moreover, the depth of the insertion hole 2.1 is greater than the length of the portion of the pin portion 5.1 inserted into the insertion hole 2.1, so that after the pin portion 5.1 is inserted into the insertion hole 2.1, it can slide relative to the support plate 2 in the direction perpendicular to the axis of the lead screw shaft 4. In a direction perpendicular to the axis of the lead screw shaft 4, the support plate 2 does not form a fixed limit on the pin part 5.1, and the pin part 5.1 can be inserted into the insertion hole 2.1 in a sliding manner, that is, the pin part 5.1 can be inserted deeper into the insertion hole 2.1, or it can be pulled out slightly.

[0057] At this time, the insertion hole 2.1 can be a through hole that extends through the support plate 2. Alternatively, it can be a blind hole with sufficient internal space for the movement of the pin part 5.1.

[0058] As attached Figure 2 As shown, in the axial direction of the lead screw shaft 4, the lead screw shaft 4 includes: a threaded shaft section 4.1 having threads for screwing into the movable sleeve 5, a first mounting shaft section 4.2 located at the left end of the threaded shaft section 4.1, and a second mounting shaft section 4.3 located at the right end of the threaded shaft section 4.1.

[0059] Appendix Figure 2 As shown, a first support bearing 6 with a bearing structure is fitted on the first mounting shaft section 4.2. The inner ring of the first support bearing 6 is fitted on the first mounting shaft section 4.2, and the outer ring is connected to the main beam 1 so as to provide support to the first mounting shaft section 4.2 when it rotates.

[0060] The second mounting shaft section 4.3 is fitted with a second support bearing 7, the inner ring of which is fitted onto the second mounting shaft section 4.3 and the outer ring is connected to the main beam 1, so as to provide support to the second mounting shaft section 4.3 when it rotates.

[0061] The first support bearing 6 and the second support bearing 7 are both installed in the main beam 1 to jointly support the rotatable lead screw shaft 4.

[0062] As attached Figure 2 To be continued Figure 4As shown, the main beam 1 has a first insertion channel 1.1 for inserting the first mounting shaft section 4.2, and a second insertion channel 1.2 for inserting the second mounting shaft section 4.3. In this embodiment, the output shaft 3.1 is also inserted into the first insertion channel 1.1 and is connected to the first mounting shaft section 4.2 for transmission.

[0063] Among them, as attached Figure 2 and attached Figure 3 As shown, the first support bearing 6 is embedded in the first insertion channel 1.1, and the outer wall of the outer ring of the first support bearing 6 is in contact with the inner wall of the first insertion channel 1.1; and the first mounting shaft section 4.2 includes a first locking part 4.21 that protrudes outward on the outer surface, and the inner wall of the first insertion channel 1.1 has a first limiting part 1.11 that protrudes into the channel.

[0064] In the axial direction of the lead screw shaft 4, the first locking part 4.21 is placed on the side of the first support bearing 6 facing away from the threaded shaft section 4.1, while the first limiting part 1.11 is placed on the side of the first support bearing 6 facing the threaded shaft section 4.1.

[0065] As attached Figure 2 and attached Figure 4 As shown, the second support bearing 7 is fitted into the second insertion channel 1.2, and the outer wall of the outer ring of the second support bearing 7 is in contact with the inner wall of the second insertion channel 1.2; and the second mounting shaft section 4.3 includes a second locking part 4.31 that protrudes outward on the outer surface, and the inner wall of the second insertion channel 1.2 has a second limiting part 1.21 that protrudes into the channel.

[0066] In the axial direction of the lead screw shaft 4, the second locking part 4.31 is placed on the side of the second support bearing 7 facing away from the threaded shaft section 4.1, while the second limiting part 1.21 is placed on the side of the second support bearing 7 facing the threaded shaft section 4.1.

[0067] In the axial direction of the lead screw shaft 4, the end face of the first mounting shaft section 4.2 facing away from the threaded shaft section 4.1, and the end face of the second mounting shaft section 4.3 facing away from the threaded shaft section 4.1, are both configured to not contact the main beam 1 and the drive device 3. For example, see attached... Figure 2 As shown, the left-facing end face of the first mounting shaft section 4.2 does not contact the main beam 1 and the drive device 3; while the right-facing end face of the second mounting shaft section 4.3 does not contact the main beam 1 and the drive device 3.

[0068] Furthermore, as shown in the appendix Figure 3 As shown, one end of the lead screw shaft 4 has a first insertion hole 4.4 with an opening facing the output shaft 3.1; the output shaft 3.1 drives the lead screw shaft 4 to rotate by being inserted into the first insertion hole 4.4, and in the axial direction of the lead screw shaft 4, the end face of the insertion end of the output shaft 3.1 is spaced apart from the inner wall of the first insertion hole 4.4.

[0069] For example, the first insertion hole 4.4 is a non-circular hole (a channel with a non-circular cross-section, such as a square, star-shaped or other polygonal cross-section), and the output shaft 3.1 is a column (such as a square, star-shaped or other polygonal cross-section) that matches the contour of the first insertion hole 4.4. By fitting the output shaft 3.1 into the first insertion hole 4.4, the output shaft 3.1 can drive the lead screw shaft 4 to rotate.

[0070] At this time, the second mounting shaft section 4.3 may include a second mounting shaft and a second limiting nut fitted on the second mounting shaft; the second limiting nut is located on the side of the second support bearing 7 facing away from the drive device 3, and is detachably positioned on the second mounting shaft by means of a threaded structure (the outer periphery of the second mounting shaft is provided with an external thread, and the internal thread of the second limiting nut is threadedly connected to the external thread accordingly). The second limiting nut is a component of the second mounting shaft section 4.3 and forms a second locking part 4.31.

[0071] Similarly, the first mounting shaft section 4.2 may also include a first mounting shaft body and a first limiting nut fitted on the first mounting shaft body; the first limiting nut is located on the side of the first support bearing 6 facing the drive device 3, and is detachably positioned on the first mounting shaft body by means of a threaded structure (the outer periphery of the first mounting shaft body is provided with an external thread, and the internal thread of the first limiting nut is threadedly connected to the external thread). The first limiting nut is a component of the first mounting shaft section 4.2 and forms a first locking part 4.21.

[0072] In any of the above embodiments, the lead screw shaft 4 may include a connecting body 4a and a lead screw body 4b.

[0073] As attached Figure 5 As shown, the left end of the connector 4a has a first insertion hole 4.4 with an opening facing the output shaft 3.1. The output shaft 3.1 drives the connector 4a to rotate by inserting into the first insertion hole 4.4. The right end of the connector 4a is detachably connected to the lead screw body 4b, so that the output shaft 3.1 can drive the connector 4a to rotate, thereby driving the lead screw body 4b to rotate.

[0074] At this point, the connecting body 4a has a first mounting shaft section 4.2, and the lead screw body 4b has a threaded shaft section 4.1 and a second mounting shaft section 4.3. The movable sleeve 5 is fitted onto the lead screw body 4b and screwed into it.

[0075] As attached Figure 5As shown, the right end of the connecting body 4a may also have a second insertion hole 4.5 with an opening facing the lead screw body 4b. The left end of the lead screw body 4b has an insertion portion that inserts into the second insertion hole 4.5; and a detachable pin 8 is inserted into the connecting body 4a, one end of which passes through the side wall of the second insertion hole 4.5 and is inserted into the insertion portion of the lead screw body 4b, so that the connecting body 4a is detachably and driveably connected to the lead screw body 4b.

[0076] In this embodiment, the pin 8 extends in the vertical direction and is simultaneously inserted into the connector 4a and the lead screw body 4b in a pull-out manner, so that the connector 4a is detachably connected to the lead screw body 4b in a transmission manner.

[0077] When using the propulsion beam:

[0078] The drilling device 9 (e.g., a rock drill) is mounted on the support plate 2. The drive device 3 is powered on and turned on to drive the output shaft 3.1 to rotate. The output shaft 3.1 synchronously drives the lead screw shaft 4 to rotate, which in turn drives the moving sleeve 5 to move on the main beam 1, so as to move the support plate 2 and the drilling device 9 (e.g., a rock drill) together to the position where the drilling operation needs to be performed.

[0079] During this process, the support plate 2 applies an axial tensile force to the lead screw shaft 4. For example, when the lead screw shaft 4 drives the support plate 2 to move to the right, the lead screw shaft 4 is subjected to a reaction force to the left. At this time, there is no top pressing structure at the left end of the lead screw shaft 4, and the second locking part 4.31 at the right end of the lead screw shaft 4 is locked at the right end of the second support bearing 7, which bears the pressure.

[0080] When the lead screw shaft 4 drives the support plate 2 to move to the left, the lead screw shaft 4 is subjected to a reaction force to the right; at this time, there is no top pressing structure at the right end of the lead screw shaft 4, and the first locking part 4.21 at the left end of the lead screw shaft 4 is locked at the left end of the first support bearing 6, which bears the pressure.

[0081] Example 2:

[0082] Drilling rig, as attached Figure 1 To be continued Figure 5 As shown, it includes a propulsion beam as described in any of the embodiments in Example 1, and also includes a drilling device 9 (e.g., a rock drill); the drilling device 9 (e.g., a rock drill) is fixed to the support plate 2 of the propulsion beam by means of, for example, a screw structure, so that it can move on the main beam 1 as the support plate 2 moves to perform drilling and propulsion operations.

[0083] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the scope of the present utility model. Furthermore, the terms "vertical," "horizontal," "front," and "rear," etc., mentioned in the embodiments of the present utility model, indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationships commonly used when the product is in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present utility model. It should be further noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "joining," and "fixing" in the description should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model according to the specific circumstances.

[0084] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. The propulsion beam of the drilling rig includes a main beam (1) and a support plate (2) for mounting the drilling equipment (9), the support plate (2) being slidably mounted on the main beam (1). Its features are, The main beam (1) is connected to a drive device (3), which has an output shaft (3.1) that outputs rotational power. The output shaft (3.1) is connected to a lead screw (4) that rotates synchronously with the output shaft (3.1). The lead screw shaft (4) is fitted with a movable sleeve (5) spaced apart from the support plate (2); The movable sleeve (5) is configured to be screwed to the lead screw shaft (4) so ​​as to move on the lead screw shaft (4) as the lead screw shaft (4) rotates; The outer wall of the movable sleeve (5) has an outwardly protruding pin portion (5.1), and the tray (2) has a matching insertion hole (2.1) provided with the pin portion (5.1). In a direction perpendicular to the axis of the lead screw shaft (4), the pin (5.1) is inserted into the insertion hole (2.1) so that the movable sleeve (5) drives the support plate (2) to move; Furthermore, in the direction perpendicular to the axis of the lead screw shaft (4), the insertion hole (2.1) provides space for the pin part (5.1) to move within the insertion hole (2.1).

2. The propulsion beam of the drilling rig according to claim 1, characterized in that: In the axial direction of the lead screw shaft (4), the lead screw shaft (4) includes: a threaded shaft section (4.1) having threads for screwing into the movable sleeve (5), and a first mounting shaft section (4.2) and a second mounting shaft section (4.3) located on both sides of the threaded shaft section (4.1). A first support bearing (6) is fitted on the first mounting shaft section (4.2), and a second support bearing (7) is fitted on the second mounting shaft section (4.3). The first support bearing (6) and the second support bearing (7) are both installed in the main beam (1) to jointly support the rotatable lead screw shaft (4).

3. The propulsion beam of the drilling rig according to claim 2, characterized in that: The main beam (1) has: a first insertion channel (1.1) for inserting the first mounting shaft section (4.2), and a second insertion channel (1.2) for inserting the second mounting shaft section (4.3). The first support bearing (6) is positioned and accommodated in the first insertion channel (1.1), the first mounting shaft section (4.2) includes an outwardly protruding first locking part (4.21), and the inner wall of the first insertion channel (1.1) has a protruding first limiting part (1.11). In the axial direction of the lead screw shaft (4), the first locking part (4.21) is placed on the side of the first support bearing (6) facing away from the threaded shaft section (4.1), while the first limiting part (1.11) is placed on the side of the first support bearing (6) facing the threaded shaft section (4.1). The second support bearing (7) is positioned and accommodated in the second insertion channel (1.2), the second mounting shaft section (4.3) includes an outwardly protruding second locking part (4.31), and the inner wall of the second insertion channel (1.2) has a protruding second limiting part (1.21). In the axial direction of the lead screw shaft (4), the second locking part (4.31) is placed on the side of the second support bearing (7) facing away from the threaded shaft section (4.1), while the second limiting part (1.21) is placed on the side of the second support bearing (7) facing the threaded shaft section (4.1); Furthermore, in the axial direction of the lead screw shaft (4), the end face of the first mounting shaft section (4.2) facing away from the threaded shaft section (4.1) and the end face of the second mounting shaft section (4.3) facing away from the threaded shaft section (4.1) are both configured to not contact the main beam (1) and the drive device (3).

4. The propulsion beam of the drilling rig according to claim 3, characterized in that: One end of the lead screw shaft (4) has a first insertion hole (4.4) with an opening facing the output shaft (3.1). The output shaft (3.1) is inserted into the first insertion hole (4.4) to drive the lead screw shaft (4) to rotate, and the end face of the insertion end of the output shaft (3.1) is spaced apart from the inner wall of the first insertion hole (4.4) in the axial direction of the lead screw shaft (4).

5. The propulsion beam of the drilling rig according to claim 3, characterized in that: The second mounting shaft segment (4.3) includes: a second mounting shaft body, and a second limiting nut fitted on the second mounting shaft body; The second limiting nut is located on the side of the second support bearing (7) facing away from the drive device (3) and is detachably positioned on the second mounting shaft by means of a threaded structure. The second limiting nut has the second locking part (4.31).

6. The propulsion beam of the drilling rig according to claim 3, characterized in that: The first mounting shaft segment (4.2) includes: a first mounting shaft body, and a first limiting nut fitted on the first mounting shaft body; The first limiting nut is located on the side of the first support bearing (6) facing the drive device (3) and is detachably positioned on the first mounting shaft by means of a threaded structure. The first limiting nut has the first locking part (4.21).

7. The propulsion beam of the drilling rig according to any one of claims 1 to 6, characterized in that: The lead screw shaft (4) includes: a connecting body (4a) and a lead screw body (4b). One end of the connecting body (4a) is driven to the output shaft (3.1), and the other end is detachably driven to the lead screw body (4b). The movable sleeve (5) is configured to be fitted on the lead screw body (4b) and screwed to the lead screw body (4b).

8. The propulsion beam of the drilling rig according to claim 7, characterized in that: The other end of the connector (4a) has a second insertion hole (4.5) with an opening facing the lead screw body (4b). The lead screw body (4b) has an insertion portion that inserts into the second insertion hole (4.5); A detachable pin (8) is inserted into the connector (4a), one end of which passes through the side wall of the second insertion hole (4.5) and is inserted into the insertion part of the lead screw body (4b) so that the connector (4a) is detachably connected to the lead screw body (4b).

9. The propulsion beam of the drilling rig according to claim 1, characterized in that: The insertion hole (2.1) is configured as a through hole that extends through the tray (2).

10. A drilling rig, characterized in that: The drilling rig includes a propulsion beam as described in any one of claims 1 to 9.

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