Electrically-controlled hydraulically-driven horizontal directional drilling machine

Abstract

The utility model discloses an electric control hydraulic drive horizontal directional drilling machine which comprises a base, a horizontal sliding rail is arranged on the base, a power head is connected to the horizontal sliding rail in a sliding mode, the tail portion of the power head is connected with a drag chain used for containing a hydraulic pipe and a cable, and the drag chain is composed of a plurality of chain links hinged end to end. Each chain link comprises two chain plates which are arranged in parallel, the two chain plates are connected and fixed through cross rods which are arranged up and down, and the hydraulic pipe is limited in a space defined by the two chain plates and the cross rods; a support used for fixing a cable is arranged on the outer side wall of the chain plate, the support comprises a bottom plate, an arc-shaped opening seat and an arc-shaped pressing buckle are arranged on the bottom plate, and the cable is limited between the arc-shaped opening seat and the arc-shaped pressing buckle. According to the electric control hydraulic drive horizontal directional drilling machine, the hydraulic pipe and the cable can be effectively stored and guided, and meanwhile the problem that the cable is extruded and damaged by the hydraulic pipe is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline laying construction equipment, in particular to an electrically controlled hydraulically driven horizontal directional drilling rig. Background Art

[0002] Horizontal directional drilling rigs are divided into electric-controlled hydraulic-driven horizontal directional drilling rigs and electric-driven horizontal directional drilling rigs. Both types of horizontal directional drilling rigs have basic structure drag chains, drill frames, chassis and power heads. The cable 9 connecting the power head needs to start from the chassis and be connected to the power head through the drag chain. Since the electric-controlled hydraulic-driven horizontal directional drilling rig can provide a large driving force, it can handle various complex geological conditions and has become the main product on the market. Electric-controlled hydraulic-driven horizontal directional drilling rigs basically have cables and hydraulic pipes mixed inside the drag chain. Because the drag chain moves back and forth with the power head, the pressure in the hydraulic pipe is high, which causes the hydraulic pipe to be squeezed inward when it reaches the curved part of the drag chain, causing the cable to rub against the cross brace on the drag chain, resulting in cable damage. Summary of the invention

[0003] In order to overcome the deficiencies of the above-mentioned prior art, the utility model provides an electrically controlled hydraulically driven horizontal directional drilling rig, which can effectively store and guide hydraulic pipes and cables while avoiding the problem of hydraulic pipes squeezing and damaging the cables.

[0004] The utility model is realized by the following technical solutions:

[0005] An electrically controlled hydraulically driven horizontal directional drilling rig comprises a base, a horizontal slide rail is arranged on the base, a power head is slidably connected to the horizontal slide rail, a drag chain for accommodating hydraulic pipes and cables is connected to the tail of the power head, the drag chain is composed of a plurality of chain links hinged end to end, the chain links comprise two parallelly arranged chain plates, the two chain plates are connected and fixed by vertically arranged cross bars, the hydraulic pipe is confined in a space surrounded by the two chain plates and the cross bars; an outer side wall of the chain plate is provided with a bracket for fixing the cable, the bracket comprises a bottom plate, an arc-shaped opening seat and an arc-shaped buckle are provided on the bottom plate, the cable is confined between the arc-shaped opening seat and the arc-shaped buckle ; In the technical scheme, the drag chain is provided with cross bars above and below the chain plates, the hydraulic pipe can be placed in the space surrounded by the two chain plates and the cross bars, and a bracket for fixing the cable is provided on the outside of the chain plate, so that the hydraulic pipe and the cable are placed separately. Compared with the traditional electric-controlled hydraulic-driven horizontal directional drilling rig, it avoids the problem that when the drag chain moves back and forth with the power head, the hydraulic pipe is squeezed inward when it reaches the bending part of the drag chain due to the high pressure in the hydraulic pipe, causing the cable to rub against the cross brace on the drag chain, resulting in cable damage. In addition, while completing the effective storage and guidance of the hydraulic pipe and the cable, it also facilitates the subsequent separate maintenance and replacement of the hydraulic pipe and the cable.

[0006] Preferably, the head end of the chain plate is provided with a first hinge hole, and the tail end is provided with a second hinge hole; the first hinge hole is provided with a limit hole in the circumference, and the second hinge hole is provided with a limit pin adapted to the limit hole in the circumference; in this technical solution, the limit pin is placed in the limit hole when two adjacent chain plates are hinged, and the limit hole can limit the moving distance of the limit pin, thereby controlling the rotation angle of the two adjacent chain plates, so that the drag chain can only bend inward, ensuring that the drag chain is in a straight state when it is in a horizontal state, thereby facilitating the movement of the power head.

[0007] Preferably, the base plate and the chain plate are detachably connected; in the present technical solution, the base plate and the chain plate can be fixed by bolt connection, so as to facilitate the later replacement of brackets of different types. Most importantly, due to the thin thickness of the chain plate, if welding is adopted, it will cause welding deformation of the chain plate.

[0008] Preferably, the base plate has a "T"-shaped structure, including a horizontal portion and a vertical portion, and the horizontal portion is provided with a first bolt hole; the arc-shaped opening seat is fixed on the vertical portion; in the present technical solution, the base plate has a "T"-shaped structure, which can optimize the structure of the base plate and reduce the weight of the bracket; the first bolt holes are preferably two, symmetrically arranged on the horizontal portion, which can effectively fix and limit the base plate to prevent deflection.

[0009] Preferably, the arc-shaped edges of the arc-shaped opening seat and the arc-shaped pressing buckle are in an arc structure; in the present technical solution, the arc structure can prevent the edges of the arc-shaped opening seat and the arc-shaped pressing buckle from scratching the cable.

[0010] Preferably, the arc-shaped opening seat and the arc-shaped pressure buckle are both made of stainless steel bars with a circular cross-section; in the present technical solution, the arc-shaped opening seat and the arc-shaped pressure buckle are made of stainless steel bars, which are easy to obtain and simple to make, and can effectively prevent rust. Moreover, they can use their own structural characteristics to form arc-shaped edges to prevent themselves from scratching the cable.

[0011] Preferably, the opening edges of the arc-shaped opening seat and the arc-shaped pressing buckle are provided with a smooth bending portion; in the present technical solution, the smooth bending portion can prevent the opening edges of the arc-shaped opening seat and the arc-shaped pressing buckle from scratching the cable during the arrangement and installation of the cable.

[0012] Preferably, the arc-shaped opening seat is fixed to the base plate by welding, the arc-shaped buckle is detachably connected to the base plate, and a second bolt hole is provided on the base plate; in this technical solution, the arc-shaped buckle is detachably connected to the base plate, which can facilitate the subsequent maintenance of the cable.

[0013] Compared with the prior art, the beneficial effects of the utility model are: 1. A cable bracket is provided on the outside of the drag chain of the electric-controlled hydraulically driven horizontal directional drilling rig, which can separate the hydraulic pipes and cables. Compared with the traditional electric-controlled hydraulically driven horizontal directional drilling rig, it avoids the problem that when the drag chain moves back and forth with the power head, the hydraulic pipe is squeezed inward when it reaches the bending part of the drag chain due to the high pressure in the hydraulic pipe, causing the cable to rub against the cross brace on the drag chain and cause cable damage. It can also facilitate independent maintenance of the hydraulic pipe or cable in the later stage; 2. The drag chain of the electric-controlled hydraulically driven horizontal directional drilling rig can only bend inward to ensure that the drag chain is in a straight state when it is in a horizontal state, which is convenient for the movement of the power head; 2. The cable bracket is easy to obtain materials and is simple to make. The cable is fixed by an arc-shaped opening seat and an arc-shaped buckle clamp, which can facilitate the disassembly and assembly of the cable in the later stage. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an electrically controlled hydraulically driven horizontal directional drilling rig described in Example 1;

[0015] Figure 2 It is a schematic diagram of the partial structure of the drag chain described in the first embodiment;

[0016] Figure 3 Schematic diagram of the top view of the drag chain described in Example 1;

[0017] Figure 4 Schematic diagram of the cross-sectional structure of the drag chain described in Example 1;

[0018] Figure 5 is a schematic diagram of the cross-sectional structure of the chain plate described in Example 1;

[0019] Figure 6 It is a structural schematic diagram of the connection relationship between adjacent chain plates in Example 1;

[0020] Figure 7 is a front view structural schematic diagram of the bracket described in Example 1;

[0021] Figure 8 is a schematic diagram of the side structure of the bracket described in Example 1;

[0022] In the figure: 1. base; 2. horizontal slide rail; 3. power head; 4. drag chain; 41. chain link; 411. chain plate; 4111. first hinge hole; 4112. second hinge hole; 4113. limit hole; 4114. limit pin; 412. cross bar; 42. bracket; 421. bottom plate; 4211. horizontal part; 4212. vertical part; 4213. first bolt hole; 4214. second bolt hole; 422. arc opening seat; 4221. first smooth bending part; 423. arc buckle; 4231. second smooth bending part; 5. hydraulic pipe; 6. cable. DETAILED DESCRIPTION

[0023] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the various embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Embodiment 1

[0025] like Figures 1 to 8 As shown, an electrically controlled hydraulically driven horizontal directional drilling rig comprises a base 1, on which a horizontal slide rail 2 is provided, on which a power head 3 is slidably connected, and a drag chain 4 for accommodating a hydraulic pipe 5 and a cable 6 is connected at the rear of the power head 3, and the drag chain 4 is composed of a plurality of chain links 41 hinged at the head and tail, and the chain link 41 comprises two parallelly arranged chain plates 411, and the chain plates 411 are made of aluminum alloy material, which can reduce the weight of the drag chain itself; the two chain plates 411 are connected and fixed by a cross bar 412 arranged up and down, and the hydraulic pipe 5 is confined in a space surrounded by the two chain plates 411 and the cross bar 412; the outer wall of the chain plate 411 is provided with a bracket 42 for fixing the cable, and the bracket 42 comprises a bottom plate 421, on which an arc-shaped opening seat 422 and an arc-shaped buckle 423 are provided, and the cable 6 is confined in the space formed by the arc-shaped opening seat 422 and the arc-shaped buckle 423 in a closed space; wherein, the bottom plate 421 and the chain plate 411 can be fixed by bolt connection, so as to facilitate the later replacement of brackets of different models, and the most important thing is to avoid welding deformation of the chain plate 411; in terms of structure, the drag chain 4 is provided with cross bars 412 above and below the chain links 41, and the hydraulic pipe 5 can be placed in the space surrounded by the two chain plates 411 and the cross bars 412, and a bracket 42 for fixing the cable 6 is provided on the outer side of the chain plate 411, so that the hydraulic pipe 5 and the cable 6 are placed separately. Compared with the traditional electric-controlled hydraulic-driven horizontal directional drilling rig, when the drag chain moves back and forth with the power head, the pressure in the hydraulic pipe is large, causing the hydraulic pipe to be squeezed inward when it reaches the bending part of the drag chain, causing the cable to rub against the cross brace on the drag chain, resulting in cable damage. In addition, while completing the effective storage and guidance of the hydraulic pipe and the cable, it is also convenient for the hydraulic pipe and the cable to be separately maintained and replaced in the later period.

[0026] Preferably, the front end of the chain plate is provided with a first hinge hole 4111, and the rear end is provided with a second hinge hole 4112; the first hinge hole 4111 is provided with an arc-shaped limit hole 4113 in the circumference, and the second hinge hole 4112 is provided with a limit pin 4114 adapted to the limit hole in the circumference; in the present technical solution, when two adjacent chain plates are hinged, the limit pin 4114 is placed in the limit hole 4113, and the limit hole 4113 can limit the moving distance of the limit pin 4114, thereby controlling the movement of the two adjacent chain plates 411 The rotation angle makes the drag chain 4 only bend inward, ensuring that the drag chain 4 is in a straight state when it is in a horizontal state, which is convenient for the movement of the power head; the bottom plate 421 is in a "T"-shaped structure, including a horizontal portion 4211 and a vertical portion 4212, and the horizontal portion 4211 is provided with a first bolt hole 4213 for fixing to the chain plate 411; the arc-shaped opening seat 422 is fixed on the vertical portion 4212, and the bottom plate 421 is in a "T"-shaped structure, and the structure of the bottom plate 421 can be optimized to reduce the weight of the bracket; the first bolt There are preferably two holes 4213, which are symmetrically arranged on the cross section 4211, which can effectively fix and limit the bottom plate 421 to prevent deflection; the arc-shaped opening seat 422 and the arc-shaped buckle 423 are both made of stainless steel bars with a circular cross-section structure. The stainless steel bars are not only easy to obtain and simple to make, but can also effectively prevent rust, and can also use their own structural characteristics to form an arc-shaped edge to prevent themselves from scratching the cable; further, the opening edges of the arc-shaped opening seat 422 and the arc-shaped buckle 423 are provided with smooth The bending parts are respectively a first smooth bending part 4221 and a second smooth bending part 4231. The smooth bending parts can prevent scratches on the cables during the arrangement and installation of the cables; specifically, the arc-shaped opening seat 422 is fixed to the base plate 421 by welding, and the arc-shaped buckle 423 is detachably connected to the base plate. The base plate 421 is provided with a second bolt hole 4214, and a foot plate is welded to the heel of the arc-shaped buckle, and the foot plate is provided with a third bolt hole, so that the arc-shaped buckle can be fixed to the second bolt hole 4214 by bolts.

[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solution recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solution from the technical solution of the embodiments of the utility model.

Claims

1. An electrically controlled hydraulically driven horizontal directional drilling rig, comprising a base, a horizontal slide rail is provided on the base, a power head is slidably connected to the horizontal slide rail, and a drag chain for receiving hydraulic pipes and cables is connected to the tail of the power head. It is characterized in that The drag chain is composed of a number of chain links hinged at the head and tail, and the chain links include two parallel chain plates, and the two chain plates are connected and fixed by vertically arranged cross bars; the hydraulic pipe is confined in the space surrounded by the two chain plates and the cross bars; the outer side wall of the chain plate is provided with a bracket for fixing the cable, and the bracket includes a bottom plate, and the bottom plate is provided with an arc-shaped opening seat and an arc-shaped buckle, and the cable is confined between the arc-shaped opening seat and the arc-shaped buckle.

2. The electrically controlled hydraulically driven horizontal directional drilling rig according to claim 1, It is characterized in that The chain plate has a first hinge hole at its head end and a second hinge hole at its tail end; a limiting hole is provided around the first hinge hole, and a limiting pin adapted to the limiting hole is provided around the first hinge hole.

3. The electrically controlled hydraulically driven horizontal directional drilling rig according to claim 1, It is characterized in that The bottom plate is detachably connected to the chain plate.

4. The electrically controlled hydraulically driven horizontal directional drilling rig according to claim 3, It is characterized in that The bottom plate is in a "T"-shaped structure, including a horizontal portion and a vertical portion, wherein the horizontal portion is provided with a first bolt hole; and the arc-shaped opening seat is fixed on the vertical portion.

5. The electrically controlled hydraulically driven horizontal directional drilling rig according to claim 1, It is characterized in that The arc-shaped edges of the arc-shaped opening seat and the arc-shaped pressing buckle are in arc structures.

6. The electrically controlled hydraulically driven horizontal directional drilling rig according to claim 5, It is characterized in that The arc-shaped opening seat and the arc-shaped pressing buckle are both made of stainless steel bars with a circular cross-section.

7. The electrically controlled hydraulically driven horizontal directional drilling rig according to claim 6, It is characterized in that The opening edges of the arc-shaped opening seat and the arc-shaped pressing buckle are provided with smooth bending parts.

8. The electrically controlled hydraulically driven horizontal directional drilling rig according to claim 1, It is characterized in that The arc-shaped opening seat is fixed on the bottom plate by welding, the arc-shaped buckle is detachably connected to the bottom plate, a second bolt hole is provided on the bottom plate, and a third bolt hole is provided at the heel of the arc-shaped buckle.

Images