Girder supporting device and horizontal directional drilling machine

Abstract

The utility model provides a girder supporting device and a horizontal directional drilling machine, and relates to the field of horizontal directional drilling. The girder supporting device comprises a mounting seat and a supporting frame, the mounting seat is connected with the girder, the supporting frame is connected with the chassis, one of the mounting seat and the supporting frame is provided with a clamping groove, the other one of the mounting seat and the supporting frame is provided with a clamping part, and the clamping part is matched with the clamping groove in a clamping mode so that the girder can be limited in the width direction of the girder. According to the girder supporting device, the clamping groove is formed in one of the mounting base and the supporting frame, the clamping part is arranged on the other one of the mounting base and the supporting frame, the girder is limited in the width direction of the girder by means of clamping matching of the clamping part and the clamping groove, and the girder is prevented from shaking when a drilling rig walks and is transported; and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the field of horizontal directional drilling, in particular to a girder support device and a horizontal directional drilling rig. Background Art

[0002] A horizontal directional drill is a construction machinery for underground pipeline drilling, which has the advantages of fast construction speed, low cost and can also be constructed in cities. Most of the working devices of the horizontal drilling rig are installed on the girder, and the center of gravity of the whole machine shifts towards the girder side. When walking and transporting, the girder shakes severely. Most of the existing girder support structures add a support plate to support the girder on the frame. The support plate has an unclear limit on left - right shaking and lacks a safety limit device. Summary of the Utility Model

[0003] The utility model provides a girder support device to solve the problem in the prior art that there is no fixed structure for the girder, and it is impossible to reduce the shaking of the drill rig during walking and transportation.

[0004] The utility model provides a girder support device, including:

[0005] A mounting seat, connected to the girder;

[0006] A support frame, connected to the chassis. One of the mounting seat and the support frame is provided with a clamping groove, and the other is provided with a clamping portion. The clamping portion is in clamping cooperation with the clamping groove to limit the girder in the width direction of the girder.

[0007] According to a girder support device provided by the utility model, the clamping groove is arranged at the upper end of the support frame, and the clamping portion is arranged at the bottom of the mounting seat.

[0008] According to a girder support device provided by the utility model, the cross - sectional width of the clamping portion and the cross - sectional width of the clamping groove both gradually decrease in the direction from top to bottom.

[0009] According to a girder support device provided by the utility model, the cross - section of the clamping portion and the cross - section of the clamping groove are both in an inverted trapezoid shape.

[0010] According to a girder support device provided by the utility model, it further includes:

[0011] A wear - resistant plate, arranged on the side wall of the clamping groove, and the wear - resistant plate abuts against the clamping portion.

[0012] According to a girder support device provided by the utility model, the side wall of the clamping groove is provided with a positioning groove, and the wear - resistant plate is embedded in the positioning groove.

[0013] According to a beam support device provided by the present utility model, the wear-resistant plate is detachably connected to the side wall of the card slot.

[0014] According to a beam support device provided by the present utility model, it further includes:

[0015] A proximity switch, and the proximity switch is arranged at the bottom of the clamping portion.

[0016] According to a beam support device provided by the present utility model, a hinge seat is arranged on one side of the support frame, and the hinge seat is hinged to the rear luffing oil cylinder.

[0017] The present utility model further provides a horizontal directional drill, including a chassis, a beam, and the beam support device according to any one of the above, the lower end of the support frame is connected to the chassis, and the bottom of the beam is connected to the mounting seat.

[0018] The beam support device provided by the present utility model sets a card slot in one of the mounting seat and the support frame, sets a clamping portion in the other of the mounting seat and the support frame, and uses the clamping and matching of the clamping portion and the card slot to limit the beam in the width direction of the beam, avoiding the beam from shaking when the drill rig walks and transports, and improving safety. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 It is a schematic side view structure diagram of the horizontal directional drill provided by the present utility model.

[0021] Figure 2 It is a schematic front view structure diagram of the beam support device provided by the present utility model.

[0022] Reference Numerals:

[0023] 100, mounting seat; 110, clamping portion; 200, support frame; 210, card slot; 300, wear-resistant plate; 400, proximity switch; 500, beam; 600, rear luffing oil cylinder; 700, front luffing oil cylinder; 800, chassis. Detailed Embodiments

[0024] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions in the present utility model will be clearly and completely described below with reference to the accompanying drawings in the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without making creative efforts fall within the scope of protection of the present utility model.

[0025] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the embodiments of the present invention and simplifying the description, 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 limiting the embodiments of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and should not be construed as indicating or implying relative importance.

[0026] In the description of the embodiments of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "connected" and "coupled" 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. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0027] In the embodiments of the present invention, unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0028] In the description of this specification, the description referring to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the embodiments of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0029] The following combines Figure 1 - Figure 2 to describe the structural schematic diagram of the girder support device of the present utility model.

[0030] As Figure 1 and Figure 2 shown, the girder support device includes a mounting seat 100 and a support frame 200. The mounting seat 100 is connected to the girder 500, and the support frame 200 is connected to the chassis 800. One of the mounting seat 100 and the support frame 200 is provided with a slot 210, and the other of the mounting seat 100 and the support frame 200 is provided with a clamping portion 110. The clamping portion 110 is in clamping cooperation with the slot 210 to limit the girder 500 in the width direction of the girder 500.

[0031] For the girder support device provided by the present utility model, by providing a slot 210 in one of the mounting seat 100 and the support frame 200, and providing a clamping portion 110 in the other of the mounting seat 100 and the support frame 200, and using the clamping portion 110 to be in clamping cooperation with the slot 210 to limit the girder 500 in the width direction of the girder 500, it avoids the girder 500 from shaking when the drill rig walks and transports, and improves the safety.

[0032] In one embodiment of the present utility model, in addition to playing a limiting role on the girder 500, the support frame 200 also plays a certain supporting role on the girder 500 to reduce the pressure on the rear luffing cylinder 600 and extend the service life of the rear luffing cylinder 600. The support frame 200 is vertically arranged, and the lower end of the support frame 200 is welded or bolted to the chassis 800. One support frame 200 can be provided, or multiple support frames 200 can be provided. When multiple support frames 200 are provided, the multiple support frames 200 are arranged at intervals along the length direction of the girder 500, and the multiple support frames 200 are on the same straight line. The distance between adjacent two support frames 200 can be the same or different. When multiple support frames 200 are provided, multiple mounting seats 100 are provided, and the multiple mounting seats 100 are arranged in one-to-one correspondence with the multiple support frames 200.

[0033] In an embodiment of the present utility model, as Figure 2 shown, the card slot 210 is provided at the upper end of the support frame 200, the opening of the card slot 210 faces upward, the mounting seat 100 is provided at the bottom of the girder 500, and the clamping portion 110 is provided at the bottom of the mounting seat 100. The clamping portion 110 is inserted into the card slot 210 from top to bottom.

[0034] In an embodiment of the present utility model, the cross-sectional width of the clamping portion 110 and the cross-sectional width of the card slot 210 both gradually decrease in the direction from top to bottom. As Figure 2 shown, the cross-sectional width of the upper part of the clamping portion 110 is the largest, the cross-sectional width of the lower part is the smallest, the cross-sectional width of the clamping portion 110 gradually decreases in the direction from top to bottom, and inclined guiding slopes are formed on both sides of the clamping portion 110. The cross-sectional width of the upper part of the card slot 210 is the largest, the cross-sectional width of the lower part is the smallest, and the cross-sectional width of the card slot 210 gradually decreases in the direction from top to bottom. By making the cross-sectional widths of both the clamping portion 110 and the card slot 210 gradually decrease in the direction from top to bottom, it is convenient for the clamping portion 110 to be inserted into the card slot 210. The clamping portion 110 only needs to partially enter the card slot 210, and under the cooperation of the side wall of the card slot 210 and the guiding slope of the clamping portion 110, the clamping portion 110 will automatically be inserted into the card slot 210.

[0035] In an embodiment of the present utility model, the mounting seat 100 has a plate-like structure. The mounting seat 100 is used to connect the clamping portion 110 and the girder 500, and the mounting seat 100 is welded to the bottom of the girder 500. Of course, the mounting seat 100 and the bottom of the girder 500 can also be integrally formed or bolted.

[0036] The clamping portion 110 is welded to the mounting seat 100 or integrally formed. The maximum cross-sectional width of the clamping portion 110 is smaller than the maximum cross-sectional width of the card slot 210. The inside of the clamping portion 110 is hollow, and the hollow clamping portion 110 can provide an installation space for the proximity switch 400 and its wires, effectively improving the space utilization rate. The length direction of the clamping portion 110 is the same as the length direction of the card slot 210, and the length of the clamping portion 110 is slightly greater than the length of the card slot 210 to reduce the assembly accuracy requirements for the mounting seat 100 and the clamping portion 110.

[0037] It should be noted here that the length direction of the clamping portion 110 is the same as the length direction of the girder 500, and the length direction of the clamping portion 110 refers to Figure 1 the left-right direction in

[0038] In an embodiment of the present utility model, as Figure 2As shown, the cross-sectional shape of the clamping portion 110 is adapted to the cross-sectional shape of the clamping groove 210 to increase the contact area between the clamping portion 110 and the clamping groove 210. The cross-sections of both the clamping portion 110 and the clamping groove 210 are in the shape of an inverted trapezoid. Of course, the cross-sectional shapes of the clamping portion 110 and the clamping groove 210 are not limited to the inverted trapezoid, and can also be triangular, semi-circular or other shapes.

[0039] In an embodiment of the present utility model, as Figure 2 shown, the girder support device further includes a wear-resistant plate 300. The wear-resistant plate 300 is used to play a buffering role, prevent the girder 500 from directly contacting the side wall of the clamping groove 210, reduce the impact force of the girder 500 on the side wall of the clamping groove 210, avoid damage to the support frame 200, and extend the service life of the support frame 200. The wear-resistant plate 300 is in the shape of a flat plate and is arranged on the side wall of the clamping groove 210. After the clamping portion 110 is inserted into the clamping groove 210, the wear-resistant plate 300 abuts against the clamping portion 110.

[0040] It should be noted here that the material of the wear-resistant plate 300 is nylon. Of course, it can also be other materials.

[0041] In a preferred embodiment of the present utility model, as Figure 2 shown, the girder support device further includes two wear-resistant plates 300. The two wear-resistant plates 300 are respectively arranged on the side walls of the clamping groove 210 in a one-to-one correspondence, and the two wear-resistant plates 300 are symmetrically arranged. The lengths and widths of the two wear-resistant plates 300 are the same, and the two wear-resistant plates 300 can be interchanged with each other during installation, shortening the assembly time.

[0042] In a preferred embodiment of the present utility model, the girder support device further includes three wear-resistant plates 300. Two of the wear-resistant plates 300 are respectively arranged on the side walls of the clamping groove 210 in a one-to-one correspondence, and the remaining one wear-resistant plate 300 is arranged on the bottom wall of the clamping groove 210. By arranging the wear-resistant plate 300 on the bottom wall of the clamping groove 210, when the wear-resistant plates 300 on the side walls of the clamping groove 210 fail, the bottom of the clamping portion 110 contacts the wear-resistant plate 300 on the bottom wall of the clamping groove 210, which can also prevent the girder 500 from directly contacting the side wall of the clamping groove 210, reduce the impact force of the girder 500 on the side wall of the clamping groove 210, and avoid damage to the support frame 200.

[0043] In another preferred embodiment of the present utility model, the three wear-resistant plates 300 are integrally formed so that one wear-resistant plate 300 covers the bottom wall and the two side walls of the clamping groove 210. By adopting the integrally formed design, the number of wear-resistant plates 300 is effectively reduced, and the assembly efficiency is improved.

[0044] In an embodiment of the present utility model, a positioning groove is provided on the side wall of the card slot 210, and the wear-resistant plate 300 is embedded in the positioning groove. Since the wear-resistant plate 300 will be subjected to a large impact during the process of the clamping portion 110 being inserted into the card slot 210, the wear-resistant plate 300 may fail due to displacement caused by the impact force. In order to prevent the wear-resistant plate 300 from failing, the wear-resistant plate 300 is embedded in the positioning groove, which can effectively prevent the wear-resistant plate 300 from being displaced due to the impact.

[0045] In a preferred embodiment of the present utility model, the wear-resistant plate 300 is detachably connected to the side wall of the card slot 210. By making the wear-resistant plate 300 detachably connected to the side wall of the card slot 210, it is convenient to replace the severely worn wear-resistant plate 300.

[0046] In an embodiment of the present utility model, a plurality of positioning holes (not shown) are provided on the side wall of the card slot 210, and the plurality of positioning holes are arranged at intervals. The distance between adjacent two positioning holes can be the same or different. A plurality of protrusions (not shown) are provided on the mutually facing sides of the two wear-resistant plates 300, and the plurality of protrusions are respectively embedded in the positioning holes.

[0047] In another embodiment of the present utility model, a plurality of protrusions (not shown) are provided on the side wall of the card slot 210, and the plurality of protrusions are arranged at intervals. The distance between adjacent two protrusions can be the same or different. A plurality of positioning holes (not shown) are provided on the mutually facing sides of the two wear-resistant plates 300, and the plurality of protrusions are respectively embedded in the positioning holes.

[0048] In a preferred embodiment of the present utility model, the positioning hole is a circular through hole or a blind hole. Of course, the shape of the positioning hole is not limited to a circle, and it can also be rectangular, strip-shaped or other shapes. The protrusion is a circular protrusion, and the outer diameter of the protrusion is adapted to the inner diameter of the positioning hole so that the protrusion can be tightly clamped in the positioning hole. Of course, the shape of the protrusion is not limited to a circle, and it is specifically determined according to the shape of the positioning hole.

[0049] In another embodiment of the present utility model, a plurality of through holes (not shown) are provided on the wear-resistant plate 300, and the plurality of through holes are arranged at intervals. A plurality of threaded holes (not shown) are provided on the side wall of the card slot 210, and the plurality of threaded holes are arranged at intervals. The central axis of the threaded hole is the same straight line as the central axis of the through hole. A bolt (not shown) is provided in each through hole, the nut of the bolt is located in the through hole, and the screw of the bolt is in threaded cooperation with the threaded hole.

[0050] In a preferred embodiment of the present utility model, an annular limiting step is provided on the side of the through hole close to the side wall of the card slot 210, the nut of the bolt abuts against the annular limiting step, and the height of the nut is less than the length of the through hole to prevent the nut from protruding from the through hole.

[0051] It should be noted here that the detachable connection method between the wear-resistant plate 300 and the side wall of the card slot 210 is not limited to the above three methods, and other connection methods can also be used to fix the wear-resistant plate 300.

[0052] In an embodiment of the present utility model, as Figure 2 shown, the beam support device further includes a proximity switch 400, and the proximity switch 400 is arranged at the bottom of the clamping portion 110. The proximity switch 400 is electrically connected to the control device of the horizontal directional drill, and the control device is electrically connected to the front luffing cylinder 700 and the rear luffing cylinder 600. When the proximity switch 400 senses that the distance between the bottom of the clamping portion 110 and the bottom wall of the card slot 210 reaches a predetermined range, the proximity switch 400 outputs an induction signal to the control device, indicating that the clamping portion 110 is clamped into the predetermined position of the card slot 210. After receiving the induction signal, the control device controls the front luffing cylinder 700 to stop operating, preventing the pressure exerted by the beam 500 on the support frame 200 from being too large and causing damage to the support frame 200.

[0053] In an embodiment of the present utility model, a hinge seat is arranged on one side of the support frame 200, and the hinge seat is hinged to the rear luffing cylinder 600. Specifically, a hinge seat is arranged on the side of the support frame 200 close to the rear luffing cylinder 600. The cylinder body of the rear luffing cylinder 600 is hinged to the hinge seat through a pin shaft, and the telescopic rod of the rear luffing cylinder 600 is hinged to the bottom of the rear end of the beam 500. By arranging a hinge seat on one side of the support frame 200 and hinging the hinge seat to the rear luffing cylinder 600, the space between the beam 500 and the chassis 800 is effectively saved, and the space utilization rate is improved.

[0054] The following combines Figures 1 to 2 to describe a specific embodiment of the present utility model. As Figures 1 to 2 shown, the beam support device includes a mounting seat 100, a support frame 200, two wear-resistant plates 300, and a proximity switch 400. The mounting seat 100 has a plate-like structure, and the mounting seat 100 is used to connect the clamping portion 110 and the beam 500, and the mounting seat 100 is welded to the bottom of the beam 500. The clamping portion 110 is arranged at the bottom of the mounting seat 100, and the clamping portion 110 is inserted into the card slot 210 from top to bottom. The clamping portion 110 is welded to the mounting seat 100. The maximum width value of the cross-section of the clamping portion 110 is smaller than the maximum width value of the cross-section of the card slot 210. The inside of the clamping portion 110 is hollow, and the cross-sections of the clamping portion 110 and the card slot 210 are both in an inverted trapezoidal shape.

[0055] The support frame 200 is vertically arranged, and the lower end of the support frame 200 is welded to the chassis 800. The card slot 210 is arranged at the upper end of the support frame 200, the opening of the card slot 210 faces upward, and the cross-section widths of the clamping portion 110 and the card slot 210 both gradually decrease in the direction from top to bottom.

[0056] Two wear-resistant plates 300 are correspondingly arranged on the side walls of the card slots 210. The two wear-resistant plates 300 are symmetrically arranged. Positioning grooves are provided on the side walls of the card slots 210. The depth of the positioning grooves is less than the thickness of the wear-resistant plates 300. The wear-resistant plates 300 are embedded in the positioning grooves. The proximity switch 400 is arranged at the bottom of the clamping portion 110. The proximity switch 400 is electrically connected to the control device of the horizontal directional drill.

[0057] The present utility model further provides a horizontal directional drill, which includes a chassis 800, a girder 500 and the girder support device described in any one of the foregoing embodiments. The lower end of the support frame 200 is connected to the chassis 800, and the bottom of the girder 500 is connected to the mounting seat 100.

[0058] In an embodiment of the present utility model, the horizontal directional drill further includes a front luffing oil cylinder 700 and a rear luffing oil cylinder 600. The girder 500 is arranged above the chassis 800. The cylinder body of the front luffing oil cylinder 700 is hinged to one end of the chassis 800, and the telescopic rod of the front luffing oil cylinder 700 is hinged to the bottom of the front end of the girder 500. A hinge seat is arranged on the side of the support frame 200 close to the rear luffing oil cylinder 600. The cylinder body of the rear luffing oil cylinder 600 is hinged to the hinge seat, and the telescopic rod of the rear luffing oil cylinder 600 is hinged to the bottom of the rear end of the girder 500.

[0059] The girder support device provided by the present utility model can play a role in protecting the structure of the girder 500 when the horizontal directional drill is walking and transporting. When operating the girder 500 to perform attitude conversion, the front luffing oil cylinder 700 is extended and the rear luffing oil cylinder 600 is retracted. After the wear-resistant plates 300 in the clamping portion 110 and the card slots 210 are attached, when the proximity switch 400 senses the support frame 200, the front luffing oil cylinder 700 stops operating to prevent the support frame 200 from being damaged.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and are not intended to limit them. Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims

1. A girder support device, characterized in that, Comprising: A mounting base (100), connected to the main beam (500); A support frame (200), connected to the chassis (800), one of the mounting base (100) and the support frame (200) is provided with a clamping groove (210), and the other of the mounting base (100) and the support frame (200) is provided with a clamping portion (110), the clamping portion (110) is in clamping fit with the clamping groove (210) to limit the main beam (500) in the width direction of the main beam (500).

2. The girder support device according to claim 1, characterized in that, The clamping groove (210) is arranged at the upper end of the support frame (200), and the clamping portion (110) is arranged at the bottom of the mounting base (100).

3. The girder support device according to claim 1, characterized in that, The cross-sectional width of the clamping portion (110) and the cross-sectional width of the clamping groove (210) both gradually decrease in the direction from top to bottom.

4. The girder support device according to claim 3, characterized in that, The cross-section of the clamping portion (110) and the cross-section of the clamping groove (210) are both in an inverted trapezoid shape.

5. The girder support device according to any one of claims 1 to 4, characterized in that Further comprising: A wear-resistant plate (300), arranged on the side wall of the clamping groove (210), the wear-resistant plate (300) abuts against the clamping portion (110).

6. The girder support device according to claim 5, characterized in that, The side wall of the clamping groove (210) is provided with a positioning groove, and the wear-resistant plate (300) is embedded in the positioning groove.

7. The girder support device according to claim 5, characterized in that, The wear-resistant plate (300) is detachably connected to the side wall of the clamping groove (210).

8. The girder support device according to any one of claims 1 to 4, characterized in that Further comprising: A proximity switch (400), the proximity switch (400) is arranged at the bottom of the clamping portion (110).

9. The girder support device according to any one of claims 1 to 4, characterized in that, One side of the support frame (200) is provided with a hinge seat, and the hinge seat is hinged to the rear luffing oil cylinder (600).

10. A horizontal directional drill, characterized in that, Comprising a chassis (800), a main beam (500) and the main beam support device according to any one of claims 1 to 9, the lower end of the support frame (200) is connected to the chassis (800), and the bottom of the main beam (500) is connected to the mounting base (100).

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