Fixing device of pulley seat, rotary drilling rig and fixing method of power head

Abstract

The present application discloses a fixing device for a pulley seat, a rotary drilling rig, and a fixing method for a power head, and relates to the technical field of rotary drilling rigs. The fixing device for the pulley seat of the present application includes a slide body, a pulley seat, and a square pin; the slide body has a first guide groove and a first square hole, and the first square hole is provided in plurality and is respectively provided on both sides of the slide body; a pulley is provided on the pulley seat, and there are two pulleys, and the pulley seat is provided in the first guide groove; and there are a plurality of square pins, and the plurality of square pins are respectively provided in the plurality of first square holes, and the square pins are inserted between the two pulleys, and the pulley seat can be detachably fixed to the slide body through the cooperation of the square pin and the two pulleys. Therefore, the present application detachably fixes the pulley seat to the slide body through the cooperation of the square pin and the pulley seat. Since the power head is fixed to the pulley seat and the slide body is fixed to the mast of the rotary drilling rig, the present application has the advantage of realizing the purpose of convenient fixing and disassembly of the power head.

Description

Technical Field

[0001] The present application relates to the technical field of rotary drilling rigs, and in particular to a fixing device for a pulley seat, a rotary drilling rig, and a fixing method for a power head. Background Art

[0002] With the rapid development of my country's economy, the market demand for construction machinery, especially various drilling rigs, is increasing. The construction process of modern construction projects generally begins with pile foundation construction. Therefore, pile hole construction is particularly important. Rotary drilling rigs, with their high production efficiency and other advantages, are increasingly widely used in pile hole operations in various geological conditions.

[0003] A typical rotary drilling rig includes a traveling mechanism, a mast, and a power head. The power head is the main working component of the rotary drilling rig. The power head is generally installed on a pulley seat through multiple screws, and the pulley seat is then installed on the rotary drilling rig through a pin shaft for use. However, this installation method is not convenient for disassembling the power head. If the power head is damaged and needs repair or maintenance, workers need to disassemble the power head, which will consume a lot of manpower and time.

[0004] In the prior art, when disassembling the power head, one method is to remove all the bolts fixing the power head and the pulley seat for replacement, which is time-consuming and labor-intensive, and reduces the efficiency of engineering construction; another method is to remove the pin shaft between the pulley seat and the rotary drilling rig, and remove the power head and the pulley seat as a whole. However, during use, the pin shaft is easily bent or indented after being subjected to force, making it difficult to pull out the shaft and difficult to disassemble and assemble the shaft hole. Summary of the Invention

[0005] The purpose of the present application is to provide a fixing device for a pulley seat, a rotary drilling rig and a fixing method for a power head, which can fix the pulley seat and the slide body together through square pins, thereby detachably fixing the power head on the mast.

[0006] The embodiment of the present application is implemented as follows:

[0007] A fixing device for a pulley seat, comprising a slide body, a pulley seat, and a square pin; the slide body has a first guide groove and a first square hole, and there are multiple first square holes, which are respectively arranged on both sides of the slide body; a pulley is provided on the pulley seat, and there are two pulleys, and the pulley seat is arranged in the first guide groove; and there are multiple square pins, and multiple square pins are respectively arranged in multiple first square holes, and the square pin is inserted between the two pulleys, and the pulley seat can be removably fixed to the slide body through the cooperation of the square pin and the two pulleys.

[0008] In one embodiment, there are two first square holes and two square pins.

[0009] In one embodiment, a plurality of limiting blocks are provided on the first guide groove for limiting the position of the pulley seat.

[0010] In one embodiment, the fixing device of the pulley seat further includes a clamping plate, which is provided on the outer surface of the slide body; a first groove is provided on the square pin, and the clamping plate limits the square pin by cooperating with the first groove.

[0011] In one embodiment, the fixing device of the pulley seat further includes a limiting plate, the limiting plate is provided on the outer surface of the slide body, a second groove is provided on the limiting plate, and the clamping plate is provided in the second groove.

[0012] In one embodiment, a third groove is provided on the limiting plate, and the square pin is provided in the third groove.

[0013] In one embodiment, a plurality of first holes are provided on the limiting plate, and screws are provided in the plurality of first holes for limiting the movement of the clamping plate.

[0014] In one embodiment, the slide body is provided with a fourth groove, and there are multiple fourth grooves. A first stop block is provided in the fourth groove; a second guide groove is provided on the first stop block, and the square pin is provided in the second guide groove; the first guide groove has a first surface, and multiple third guide grooves are provided on the first surface. The multiple third guide grooves are respectively provided on both sides of the first guide groove, and the square pin is provided in the third guide groove.

[0015] A rotary drilling rig comprises a mast, a pulley seat fixing device, and a power head. The pulley seat fixing device is the above-mentioned pulley seat fixing device, the slide body is fixed on the mast; and the power head is connected to the pulley seat.

[0016] A method for fixing a power head, using the above-mentioned power head, the method for fixing the power head includes:

[0017] The pulley seat slides down along the first guide groove into the slide body from top to bottom and contacts the limit block;

[0018] After the position of the pulley seat is determined, the square pin is inserted into the square hole;

[0019] After the square pin is inserted between the two pulleys and the first groove is aligned with the second groove, the clamping plate is installed into the second groove;

[0020] The clamping plate is fixed to the limiting plate by the screws.

[0021] The beneficial effects of this application compared with the prior art are:

[0022] The fixing device of the pulley seat of the present application fixes the pulley seat on the slide body in a detachable manner through the cooperation of the square pin and the pulley seat. Since the power head is fixed on the pulley seat and the slide body is fixed on the mast of the rotary drilling rig, the present application can realize convenient fixing and disassembly of the power head.

[0023] In the fixing device of the pulley seat of the present application, the fixation between the pulley seat and the slide body is achieved by a square pin, so the contact mode between the square pin and the slide body is surface contact, the force is uniform and the reliability is good, and the surface contact allows a certain gap, making it easier to pull out the shaft.

[0024] The fixing device of the pulley seat of the present application is provided with a U-shaped clamping groove on the outer surface of the slide body, which can prevent the square pin from moving and make the screw bear force; a limit block is provided in the first guide groove of the slide body to facilitate the pulley seat to align with the hole position and facilitate the insertion of the shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 This is a schematic structural diagram of a fixing device for a pulley seat according to an embodiment of the present application.

[0027] Figure 2 For this application Figure 1 Magnified view of part A.

[0028] Figure 3 This is a schematic structural diagram of a fixing device for a pulley seat according to an embodiment of the present application.

[0029] Figure 4 This is a schematic structural diagram of a rotary drilling rig according to an embodiment of the present application.

[0030] Figure 5 This is a flow chart of a method for disassembling a power head according to an embodiment of the present application.

[0031] Icons: 1-fixing device of pulley seat; 2-slide body; 21-first guide groove; 210-limiting block; 211-first surface; 212-third guide groove; 213-third stopper; 22-first square hole; 23-outer surface; 24-fourth groove; 241-first stopper; 242-second stopper; 243-second guide groove; 3-pulley seat; 31-pulley; 4-square pin; 41-first groove; 5-limiting plate; 51-second groove; 52-clamping plate; 53-third groove; 54-first hole; 55-screw; 6-rotary drilling rig; 61-mast; 62-power head. DETAILED DESCRIPTION

[0032] The terms "first", "second", "third", etc. are only used to distinguish and describe, and do not indicate the order of arrangement, nor can they be understood as indicating or implying relative importance.

[0033] Furthermore, terms such as "horizontal," "vertical," and "overhanging" do not necessarily imply that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0034] In the description of this application, it should be noted that the terms "inside", "outside", "left", "right", "up", "down", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on this application.

[0035] In the description of this application, unless otherwise clearly specified and limited, the terms "set", "install", "connected" and "connect" 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 a direct connection or an indirect connection through an intermediate medium, or it can be a connection between the internal parts of two elements.

[0036] The technical solution of this application will be clearly and completely described below with reference to the accompanying drawings.

[0037] Please refer to Figure 1, which is a schematic structural diagram of a pulley seat fixing device 1 according to an embodiment of the present application. The pulley seat fixing device 1 of the present application comprises a carriage body 2, a pulley seat 3, and a square pin 4. The carriage body 2 has a first guide groove 21 and a first square hole 22. There are a plurality of first square holes 22, one on each side of the carriage body 2. The pulley seat 3 is disposed in the first guide groove 21 and has two pulleys 31 disposed thereon. There are a plurality of square pins 4, each disposed in a plurality of first square holes 22. The square pin 4 is inserted between the two pulleys 31. The pulley seat 3 is detachably fixed to the carriage body 2 through the cooperation of the square pins 4 and the two pulleys 31.

[0038] In this embodiment, two first square holes 22 are provided, one on each side of the carriage body 2. Therefore, two square pins 4 are also provided, one in each of the first square holes 22. These pins 4 cooperate with the pulley seat 3 to removably secure the pulley seat 3 to the carriage body 2.

[0039] A plurality of limit blocks 210 are provided in the first guide groove 21. The limit blocks 210 are provided on both sides of the first guide groove 21. When the pulley seat 3 is slid into the carriage body 2, it is limited by the limit blocks 210. The limit blocks 210 can be shaped like a cuboid, a hemisphere, a cylinder, etc. In this embodiment, the limit blocks 210 are triangular prisms.

[0040] The carriage body 2 is provided with a fourth groove 24. There are multiple fourth grooves 24, one on each side of the carriage body 2. Each of the four grooves 24 is provided with a first block 241. The first block 241 is provided with a second guide groove 243. The square pin 4 passes through the first square hole 22 and is positioned within the second guide groove 243. The first block 241 is provided with a second block 242, which is used to limit the forward and backward movement of the square pin 4. The first block 241 and the second guide groove 243 can be connected by riveting, hinges, screws 55, or welding. The second block 242 and the first block 241 can be connected by riveting, hinges, screws 55, or welding. In this example, the first block 241 and the second guide groove 243 are connected by welding, and the second block 242 and the first block 241 are connected by welding. Since there are two fourth grooves 24, there are also two first blocks 241 and two second blocks 242.

[0041] The first guide groove 21 has a first surface 211, and a plurality of third guide grooves 212 are provided on the first surface 211. The plurality of third guide grooves 212 are respectively provided on both sides of the first guide groove 21. The square pin 4 passes through the first square hole 22 and the second guide groove 243 and is disposed in the third guide groove 212. A third stopper 213 is provided on the third guide groove 212 to limit the forward and backward movement of the square pin 4. The third stopper 213 can be connected to the first surface 211 by riveting, hinged connection, screw 55 connection, welding, etc. In this embodiment, the third stopper 213 is connected to the first surface 211 by welding, and two third guide grooves 212 are provided.

[0042] During an operation, the power head 62 (see Figure 4 ) and mast 61 (see Figure 4 ) is secured by securing the pulley seat 3 to the carriage body 2. The pulley seat 3 slides downward into the first guide slot 21 and contacts the stop block 210. At this point, the gap between the two pulleys 31 aligns with the first square hole 22. Once the pulley seat 3 is positioned, the square pin 4 is sequentially passed through the first square hole 22, the second guide slot 243, and the third guide slot 212 before being inserted into the pulley seat 3 to secure it.

[0043] Please refer to Figure 2 , which is the present application Figure 1 The carriage body 2 has an outer surface 23 , on which a clamping plate 52 is provided. The square pin 4 is provided with a first groove 41 . The clamping plate 52 cooperates with the first groove 41 to limit the square pin 4 .

[0044] The carriage body 2 has an outer surface 23, on which a retaining plate 5 is disposed. The retaining plate 5 is provided with a second groove 51 and a third groove 53. The second groove 51 opens in the opposite direction to the first guide groove 21, while the third groove 53 opens in the same direction as the first guide groove 21. A retaining plate 52 is disposed within the second groove 51, and the square pin 4 is disposed within the third groove 53. The retaining plate 52 engages with the first groove 41 of the square pin 4 to retain the square pin 4. The retaining plate 5 may be shaped like a rectangular parallelepiped, a triangular prism, or a U-shape. The retaining plate 5 may be connected to the carriage body 2 by riveting, hinged connection, screws 55, welding, or other methods. In this embodiment, the retaining plate 5 is U-shaped and is connected to the carriage body 2 by welding.

[0045] The limiting plate 5 is provided with a plurality of first holes 54, and screws 55 are provided in the first holes 54 to limit the left and right movement of the clamping plate 52. In this embodiment, two first holes 54 are provided.

[0046] During one operation, after the square pin 4 is properly positioned, the retaining plate 52 is installed into the retaining plate 5. The retaining plate 52 cooperates with the first groove 41 on the square pin 4 to limit the forward and backward movement of the square pin 4. Simultaneously, the retaining plate 52's second groove 51 is used to restrict the retaining plate 52 from moving sideways. The retaining plate 5 restricts the retaining plate 52's forward and backward movement via screws 55. Since the retaining plate 5 limits the retaining plate 52's left and right movement, it also protects the screws 55.

[0047] During an operation, the power head 62 (see Figure 4 ) and mast 61 (see Figure 4 ) is disassembled by means of pulley seat 3 (see Figure 1 ) and the disassembly of the carriage body 2. First, take out the screw 55, then take out the clamping plate 52, then pull out the square pin 4, and finally move the pulley seat 3 out of the carriage body 2.

[0048] The pulley seat fixing device 1 of the present application can detachably fix the pulley seat 3 on the slide body 2 through the cooperation of the square pin 4 and the pulley seat 3, so the present application can realize convenient fixing and disassembly of the pulley seat 3.

[0049] In the pulley seat fixing device 1 of the present application, the fixation between the pulley seat 3 and the slide body 2 is achieved by the square pin 4, so the contact mode between the square pin 4 and the slide body 2 is surface contact, the force is uniform and the reliability is good, and the surface contact allows a certain gap, making it easier to pull out the shaft.

[0050] The fixing device 1 of the pulley seat of the present application is provided with a U-shaped clamping plate 52 groove on the outer surface 23 of the slide body 2, which can prevent the square pin 4 from moving and make the screw 55 bear force; a limit block 210 is provided in the first guide groove 21 of the slide body 2 to facilitate the pulley seat 3 to align the hole position and facilitate the insertion of the shaft.

[0051] Please refer to Figure 3 , which is a structural diagram of a pulley seat fixing device 1 shown in an embodiment of the present application. The pulley seat fixing device 1 of the present application includes a slide body 2 (please refer to Figure 1 )、Pulley seat 3 (please refer to Figure 1 ) and square pin 4, wherein two pulleys 31 are provided on the pulley seat 3; the square pin 4 is inserted between the two pulleys 31, and the pulley seat 3 can be detachably fixed on the slide body 2 through the cooperation of the square pin 4 and the two pulleys 31.

[0052] Please refer to Figure 4 , which is a structural diagram of a rotary drilling rig 6 shown in an embodiment of the present application. The rotary drilling rig 6 of the present application includes a mast 61, a fixing device 1 for a pulley seat, and a power head 62, wherein the carriage body 2 is fixed to the mast 61, and the power head 62 is connected to the pulley seat 3.

[0053] The pulley seat fixing device 1 of the present application, through the cooperation of the square pin 4 and the pulley seat 3, fixes the pulley seat 3 on the slide body 2 in a detachable manner. Since the power head 62 is fixed on the pulley seat 3 and the slide body 2 is fixed on the mast 61 of the rotary drilling rig 6, the present application can realize convenient fixing and disassembly of the power head 62.

[0054] Please refer to Figure 5 , which is a flow chart of a method for fixing the power head 62 according to an embodiment of the present application. Figure 1 The fixing device of the pulley seat 3 shown in the figure, this method fixes the pulley seat 3 to the carriage body 2 in a detachable manner by the cooperation of the square pin 4 and the pulley seat 3, thereby achieving the fixation of the power head 62. The fixing method of the power head 62 may include the following steps:

[0055] Step S101 : the pulley seat 3 slides down along the first guide groove 21 into the carriage body 2 and contacts the limiting block 210 .

[0056] Step S102 : After the position of the pulley seat 3 is determined, the square pin 4 is sequentially passed through the third groove 53 , the first square hole 22 , the second guide groove 243 and the third guide groove 212 on the limiting plate 5 , and finally inserted into the pulley seat 3 .

[0057] Step S103 : After the square pin 4 is inserted between the two pulleys 31 and the first groove 41 is aligned with the second groove 51 , the clamping plate 52 is installed into the second groove 51 .

[0058] Step S104 : fixing the clamping plate 52 on the limiting plate 5 by screws 55 .

[0059] It should be noted that, unless there is any conflict, the features in the embodiments of this application can be combined with each other.

[0060] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Various modifications and variations are possible for those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application.

Claims

1. A fixing device for a pulley seat, characterized in that: include: The slide body has a first guide groove and a first square hole, wherein two first square holes are provided, one on each side of the slide body; a pulley seat, wherein the pulley seat is provided with a pulley, two pulleys are provided, and the pulley seat is arranged in the first guide groove; and Two square pins are provided, the two square pins are respectively arranged in the two first square holes, the square pins are inserted between the two pulleys, and the pulley seat is detachably fixed to the slide body through the cooperation between the square pins and the two pulleys; The slide body has an outer surface, a limit plate is provided on the outer surface of the slide body, a second groove and a third groove are provided on the limit plate, wherein an opening direction of the second groove is opposite to an opening direction of the first guide groove, and an opening direction of the third groove is the same as an opening direction of the first guide groove, the clamping plate is provided in the second groove, and the square pin is provided in the third groove; The clamping plate is provided on the outer surface of the slide body; the square pin is provided with a first groove, and the clamping plate limits the square pin by cooperating with the first groove; the limiting plate is provided with a plurality of first holes, and screws are provided in the plurality of first holes for limiting the movement of the clamping plate; The slide body is provided with a fourth groove, a plurality of the fourth grooves are provided, a first stopper is provided in the fourth groove; the first stopper is provided with a second guide groove, and the square pin is provided in the second guide groove; The first guide groove has a first surface, a plurality of third guide grooves are provided on the first surface, the plurality of third guide grooves are respectively provided on both sides of the first guide groove, and the square pins are provided in the third guide grooves.

2. The fixing device of the pulley seat according to claim 1, characterized in that: The first guide groove is provided with a plurality of limiting blocks for limiting the pulley seat.

3. A rotary drilling rig, characterized in that: include: mast; The fixing device of the pulley seat is the fixing device of the pulley seat according to claim 2, wherein the slide body is fixed to the mast; as well as The power head is connected to the pulley seat.

4. A method for fixing a power head, characterized in that: Using the rotary drilling rig according to claim 3, the method for fixing the power head of the rotary drilling rig includes: The pulley seat slides down along the first guide groove into the slide body from top to bottom and contacts the limit block; After the position of the pulley seat is determined, the square pin is inserted into the square hole; After the square pin is inserted between the two pulleys and the first groove is aligned with the second groove, the clamping plate is installed into the second groove; The clamping plate is fixed to the limiting plate by the screws.

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