Counterweight device

Abstract

The utility model provides a counterweight device, which comprises a counterweight box and at least one fastening component for fixedly connecting the counterweight box with a rotary table, the counterweight box is provided with a first assembly hole matched with the fastening component, the fastening component comprises an ejector rod, a first connecting piece and a second connecting piece, and the ejector rod is provided with a second assembly hole matched with the first assembly hole. One end of the ejector rod is arranged in the first assembly hole and connected with the first connecting piece, the other end of the ejector rod extends out of the first assembly hole and penetrates through the rotary table, and the other end of the ejector rod is connected with the rotary table through the second connecting piece. The counterweight device can solve the problem of bolt breakage, and the use safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation construction, in particular to a counterweight device. Background Art

[0002] The traditional fuel rotary drilling rig has a reserved counterweight installation plane on the turntable, a reserved installation threaded hole on the lower body of the counterweight, and a reserved bolt installation through hole on the turntable. The bolts are installed and tightened from bottom to top, that is, the counterweight body and the turntable are fixedly connected by bolts to achieve the effect of safe fixation of the counterweight. However, when the rotary excavator is working, the turntable rotates according to work requirements, and the counterweight body on the turntable rotates with the turntable. Since the turntable and the counterweight body are connected by bolts, that is, the connecting surface of the turntable and the counterweight body is connected by bolts, when the turntable rotates, the counterweight body rotates together, which will apply force to the bolts, and the bolts will be at risk of breaking due to shear force, which is not very safe when used. Utility Model Content

[0003] In view of this, the purpose of the utility model is to provide a counterweight device that can solve the problems existing in the prior art, eliminate the possibility of bolt breakage, and increase safety in use.

[0004] The utility model provides a counterweight device, including a counterweight box and at least one fastening assembly fixedly connected to the counterweight box and a turntable, the counterweight box is provided with a first assembly hole matched with the fastening assembly, the fastening assembly includes a push rod, a first connecting piece and a second connecting piece, one end of the push rod is arranged in the first assembly hole and connected to the first connecting piece, the other end of the push rod extends out of the first assembly hole and passes through the turntable, and the other end of the push rod is fixedly connected to the turntable through the second connecting piece.

[0005] In one embodiment, a first threaded hole and a second threaded hole are respectively provided at both ends of the push rod, the first connecting member is threadedly connected to the first threaded hole, and the second connecting member is threadedly connected to the second threaded hole.

[0006] In one embodiment, the top rod includes an upper rod segment, a middle rod segment and a lower rod segment, the middle rod segment is connected between the upper rod segment and the lower rod segment, the first threaded hole is arranged at the end of the upper rod segment, and the second threaded hole is arranged at the end of the lower rod segment.

[0007] In one embodiment, a second assembly hole aligned with the first assembly hole is provided on the turntable; the lower rod segment is in the shape of a solid column, and the lower rod segment is used to assemble with the second assembly hole; when the fastening assembly is assembled with the first assembly hole and the second assembly hole, the section of the lower rod segment connected to the middle rod segment is in the first assembly hole, and the end of the lower rod segment away from the middle rod segment is at least partially in the second assembly hole.

[0008] In one embodiment, a docking hole is provided at the end of the middle rod segment away from the upper rod segment, and the end of the lower rod segment is connected to the docking hole. The outer diameter of the middle rod segment matches the inner diameter of the first assembly hole, the outer diameter of the lower rod segment matches the inner diameter of the second assembly hole, and the outer diameter of the middle rod segment is larger than the inner diameter of the second assembly hole.

[0009] In one embodiment, a weight-reducing channel is provided in the middle rod section, the weight-reducing channel is provided along the length direction of the middle rod section, and the weight-reducing channel is communicated with the docking hole.

[0010] In one embodiment, at least one welding groove is provided on the outer wall of the middle rod segment close to the lower rod segment, the welding groove is connected to the docking hole, a part of the lower rod segment is exposed from the welding groove, and the welding groove is used for welding to fix the middle rod segment and the lower rod segment.

[0011] In one embodiment, at least one groove is provided on the outer wall of the middle rod section close to the lower rod section, and the groove is used to cooperate with a wrench to prevent the push rod from deflecting.

[0012] In one embodiment, the counterweight device includes: the counterweight box is provided with at least one assembly tube, the first assembly hole is formed in the assembly tube; and / or the counterweight box includes a left counterweight box body, an intermediate counterweight box body and a right counterweight box body, the intermediate counterweight box body is connected between the left counterweight box body and the right counterweight box body, the inner cavities of the left counterweight box body, the intermediate counterweight box body and the right counterweight box body are interconnected, and when counterweight objects are set in the inner cavities of the left counterweight box body, the intermediate counterweight box body and the right counterweight box body, the counterweight objects in the three inner cavities form a whole ; and / or at least two lifting ear plates are provided on the top of the counterweight box, and each of the lifting ear plates is provided with a lifting hole; and / or a first mounting seat is also provided on the top of the counterweight box, and the counterweight device also includes a camera, and the camera is installed on the first mounting seat; and / or a second mounting seat is also provided on the top of the counterweight box, and the counterweight device also includes a wiring harness, and the wiring harness is arranged on the second mounting seat; and / or a third mounting seat is also provided on the top of the counterweight box, and the counterweight device also includes a lighting fixture, and the lighting fixture is installed on the third mounting seat.

[0013] In one embodiment, the fastening assembly further includes a first pad and a second pad, the first pad is provided with a first through hole, the second pad is provided with a second through hole, the first pad and the second pad are arranged at opposite ends of the push rod, the first connecting member passes through the first through hole and is connected to the push rod, and the second connecting member passes through the second through hole and is connected to the push rod.

[0014] The counterweight device of the utility model is provided with a first assembly hole on the counterweight box, and a push rod is arranged in the first assembly hole, so that one end of the push rod is arranged in the first assembly hole and connected with the first connecting piece, and the other end of the push rod extends out of the first assembly hole and is fixedly connected with the turntable through the second connecting piece. The connection between the counterweight box and the turntable is connected by the push rod, which can change the shear force of the bolt in the prior art into the shear force of the push rod, fundamentally eliminating the possibility of fastener breakage and improving the safety of the counterweight device structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model 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 paying creative work.

[0016] Figure 1 It is a cross-sectional structural schematic diagram of the counterweight box of the utility model;

[0017] Figure 2 It is a schematic diagram of the top view of the counterweight box of the utility model;

[0018] Figure 3 It is a partial cross-sectional structural schematic diagram of the top rod of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the middle rod section of the utility model;

[0020] Figure 5 yes Figure 4 Schematic diagram of the cross-sectional structure at AA in the middle;

[0021] Explanation of the accompanying figure numbers: first assembly hole -101; docking hole -102; weight reduction channel -103; welding groove -104; groove -105; counterweight box -11; left counterweight box body -111; middle counterweight box body -112; right counterweight box body -113; fastening assembly -13; top rod -131; upper rod section -1311; middle rod section -1312; lower rod section -1313; abutment surface -131a; first connecting member -132; second connecting member -133; lifting ear plate -14; first mounting seat -15; second mounting seat -16; third mounting seat -17; first pad -181; second pad -182.

[0022] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] The following will describe in detail a specific embodiment of the utility model in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all the embodiments. Based on the description 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] In the description of the present utility model, unless otherwise clearly specified and limited, the terms "set", "install", "connection" and the like 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. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] The directions or positional relationships indicated by terms such as "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of description and simplified 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, and therefore should not be understood as a limitation on the utility model.

[0026] The terms "first", "second", "third" and the like are merely used to distinguish elements of similar nature, and do not indicate or imply relative importance or a particular order.

[0027] The terms "comprises," "comprising," or any other variations thereof, are intended to cover a non-exclusive inclusion of the elements listed and may also include additional elements not expressly listed.

[0028] like Figures 1 to 5 As shown, the counterweight device includes a counterweight box 11 and at least one fastening assembly 13 that fixes the counterweight box 11 to the turntable. The counterweight box 11 is provided with a first assembly hole 101 that cooperates with the fastening assembly 13. The fastening assembly 13 includes a push rod 131, a first connecting member 132, and a second connecting member 133. One end of the push rod 131 is arranged in the first assembly hole 101 and connected to the first connecting member 132. The other end of the push rod 131 extends out of the first assembly hole 101 and passes through the turntable. The other end of the push rod 131 is fixedly connected to the turntable through the second connecting member 133. In this embodiment, the counterweight box 11 is provided with 4 installation and fixing points, so 4 push rods 131 are required, and 4 first connecting members 132 and second connecting members 133 are required respectively.

[0029] The counterweight device of the present invention is provided with a first assembly hole 101 on the counterweight box 11, and a push rod 131 is arranged in the first assembly hole 101, so that one end of the push rod 131 is arranged in the first assembly hole 101 and connected with the first connecting piece 132, and the other end of the push rod 131 extends out of the first assembly hole 101 and is fixedly connected with the turntable through the second connecting piece 133. The connection between the counterweight box 11 and the turntable is connected through the push rod 131, which can change the shear force of the bolt in the prior art into the shear force of the push rod 131, fundamentally eliminating the possibility of fastener breakage and improving the safety of the counterweight device structure.

[0030] Preferably, the two ends of the top rod 131 are respectively provided with a first threaded hole and a second threaded hole, the first connecting member 132 is threadedly connected to the first threaded hole, and the second connecting member 133 is threadedly connected to the second threaded hole. The top rod 131 includes an upper rod section 1311, a middle rod section 1312 and a lower rod section 1313, the middle rod section 1312 is connected between the upper rod section 1311 and the lower rod section 1313, the first threaded hole is provided at the end of the upper rod section 1311, and the second threaded hole is provided at the end of the lower rod section 1313, wherein the first connecting member 132 is preferably a bolt, and the second connecting member 133 is preferably a bolt.

[0031] Preferably, a second assembly hole aligned with the first assembly hole 101 is provided on the turntable; the lower rod segment 1313 is in the shape of a solid column, and the lower rod segment 1313 is used to assemble with the second assembly hole; when the fastening assembly 13 is assembled with the first assembly hole 101 and the second assembly hole, the section where the lower rod segment 1313 and the middle rod segment 1312 are connected is in the first assembly hole 101, and the end of the lower rod segment 1313 away from the middle rod segment 1312 is at least partially in the second assembly hole.

[0032] like Figure 5As shown, the end of the middle rod segment 1312 away from the upper rod segment 1311 is provided with a docking hole 102, the end of the lower rod segment 1313 is connected to the docking hole 102, the outer diameter of the middle rod segment 1312 matches the inner diameter of the first assembly hole 101, the outer diameter of the lower rod segment 1313 matches the inner diameter of the second assembly hole, and the outer diameter of the middle rod segment 1312 is larger than the inner diameter of the second assembly hole. A weight-reducing channel 103 is provided in the middle rod section 1312, and the weight-reducing channel 103 is arranged along the length direction of the middle rod section 1312. The weight-reducing channel 103 is connected with the docking hole 102, and the weight-reducing channel 103 is arranged along the length direction of the middle rod section 1312. The weight-reducing channel 103 can reduce the dead weight of the counterweight box 11, and abutment surface 131a is formed between the weight-reducing channel 103 and the docking hole 102. The lower rod section 1313 is arranged to abut against the abutment surface 131a. Therefore, the connection between the turntable and the counterweight box 11 is connected through the lower rod section 1313, and the lower rod section 1313 is a solid columnar structure. When the turntable rotates and drives the counterweight box 11 to rotate, the lower rod section 1313 is subjected to shear force from the counterweight box 11, thereby fundamentally eliminating the possibility of bolt breakage in the prior art.

[0033] like Figure 5 As shown, at least one welding groove 104 is provided on the outer wall of the middle rod section 1312 near the lower rod section 1313, the welding groove 104 is connected to the docking hole 102, a part of the lower rod section 1313 is exposed from the welding groove 104, and the welding groove 104 is used for welding to fix the middle rod section 1312 and the lower rod section 1313 in connection.

[0034] like Figure 4 and Figure 5 As shown, at least one groove 105 is provided on the outer wall of the middle rod section 1312 close to the lower rod section 1313, and the groove 105 is used to cooperate with a wrench to prevent the top rod 131 from deflecting, wherein two grooves 105 are preferably provided.

[0035] Preferably, the counterweight box 11 is provided with at least one assembly tube, the first assembly hole 101 is formed in the assembly tube, and the top column is arranged in the assembly tube. In this embodiment, the counterweight box 11 is provided with four assembly tubes; the counterweight box 11 includes a left counterweight box body 111, an intermediate counterweight box body 112 and a right counterweight box body 113, the intermediate counterweight box body 112 is connected between the left counterweight box body 111 and the right counterweight box body 113, and the left counterweight box body 111, the intermediate counterweight box body 112 and the right counterweight box body 113 are connected. The inner cavities of the left counterweight box 111, the middle counterweight box 112 and the right counterweight box 113 are interconnected. When counterweight objects are set in the inner cavities of the left counterweight box 111, the middle counterweight box 112 and the right counterweight box 113, the counterweight objects in the three inner cavities form a whole. For example, when the counterweight box 11 is configured with mud, stone or concrete, the three inner cavities can flow so that the mud, stone or concrete in the left counterweight box 111, the middle counterweight box 112 and the right counterweight box 113 can form a whole.

[0036] like Figure 1As shown, at least two lifting ear plates 14 are provided on the top of the counterweight box 11, and each lifting ear plate 14 is provided with a lifting hole, which is convenient for lifting the counterweight box 11, and is convenient for installation, disassembly and transportation.

[0037] Please continue to refer to Figure 1 A first mounting seat 15 is also provided on the top of the counterweight box 11, and the counterweight device also includes a camera, which is mounted on the first mounting seat 15; a second mounting seat 16 is also provided on the top of the counterweight box 11, and the counterweight device also includes a wiring harness, which is arranged on the second mounting seat 16; a third mounting seat 17 is also provided on the top of the counterweight box 11, and the counterweight device also includes a lighting fixture, which is mounted on the third mounting seat 17.

[0038] Please continue to refer to Figure 1 The fastening assembly 13 also includes a first pad 181 and a second pad 182. The first pad 181 is provided with a first through hole, and the second pad 182 is provided with a second through hole. The first pad 181 and the second pad 182 are arranged at opposite ends of the top rod 131. The first connecting piece 132 passes through the first through hole and is connected to the top rod 131, and the second connecting piece 133 passes through the second through hole and is connected to the top rod 131. Since the height of the counterweight box 11 is relatively high, usually 2 meters, the length of the suspension at the upper end of the counterweight box 11 is relatively long. After adding the first pad 181 and the second pad 182 to the top rod 131, when the turntable drives the counterweight box 11 to rotate, it can effectively prevent the top of the left counterweight box body 111 and the right counterweight box body 113 from swinging and causing shear force and impact on the first connecting piece 132 and the second connecting piece 133, thereby preventing fatigue fracture of the second connecting piece 133, reducing the vibration displacement of the top of the counterweight box 11, and increasing the safety of use.

[0039] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model shall be subject to the attached claims.

Claims

1. A counterweight device, characterized in that: The invention comprises a counterweight box (11) and at least one fastening assembly (13) for fixedly connecting the counterweight box (11) to a turntable, wherein the counterweight box (11) is provided with a first assembly hole (101) for cooperating with the fastening assembly (13), and the fastening assembly (13) comprises a push rod (131), a first connecting piece (132) and a second connecting piece (133), one end of the push rod (131) is arranged in the first assembly hole (101) and connected to the first connecting piece (132), the other end of the push rod (131) extends out of the first assembly hole (101) and passes through the turntable, and the other end of the push rod (131) is fixedly connected to the turntable via the second connecting piece (133).

2. The weight counterweight device according to claim 1, characterized in that: A first threaded hole and a second threaded hole are respectively provided at both ends of the push rod (131); the first connecting member (132) is threadedly connected to the first threaded hole; and the second connecting member (133) is threadedly connected to the second threaded hole.

3. The weight counterweight device according to claim 2, characterized in that: The top rod (131) comprises an upper rod section (1311), a middle rod section (1312) and a lower rod section (1313); the middle rod section (1312) is connected between the upper rod section (1311) and the lower rod section (1313); the first threaded hole is arranged at the end of the upper rod section (1311); and the second threaded hole is arranged at the end of the lower rod section (1313).

4. The weight counterweight device according to claim 3, characterized in that: The turntable is provided with a second assembly hole aligned with the first assembly hole (101); the lower rod section (1313) is in the shape of a solid column, and the lower rod section (1313) is used to assemble with the second assembly hole; when the fastening assembly (13) is assembled with the first assembly hole (101) and the second assembly hole, the section where the lower rod section (1313) is connected to the middle rod section (1312) is located in the first assembly hole (101), and the end of the lower rod section (1313) away from the middle rod section (1312) is at least partially located in the second assembly hole.

5. The weight counterweight device according to claim 4, characterized in that: The end of the middle rod section (1312) away from the upper rod section (1311) is provided with a docking hole (102), and the end of the lower rod section (1313) is connected to the docking hole (102); the outer diameter of the middle rod section (1312) matches the inner diameter of the first assembly hole (101), the outer diameter of the lower rod section (1313) matches the inner diameter of the second assembly hole, and the outer diameter of the middle rod section is larger than the inner diameter of the second assembly hole.

6. The weight counterweight device according to claim 5, characterized in that: A weight reduction channel (103) is provided in the middle rod section (1312), and the weight reduction channel (103) is arranged along the length direction of the middle rod section (1312). The weight reduction channel (103) is communicated with the docking hole (102).

7. The weight counterweight device according to claim 5, characterized in that: At least one welding groove (104) is provided on the outer wall of the middle rod section (1312) close to the lower rod section (1313); the welding groove (104) is connected to the docking hole (102); a part of the lower rod section (1313) is exposed from the welding groove (104); and the welding groove (104) is used for welding to fix the middle rod section (1312) and the lower rod section (1313) in connection.

8. The weight counterweight device according to claim 5, characterized in that: At least one groove (105) is provided on the outer wall of the middle rod section (1312) close to the lower rod section (1313), and the groove (105) is used to cooperate with a wrench to prevent the push rod (131) from deflecting.

9. The weight balancing device according to any one of claims 1 to 8, characterized in that: Include at least one of the following: The counterweight box (11) is provided with at least one assembly pipe, and the first assembly hole (101) is formed in the assembly pipe; The counterweight box (11) comprises a left counterweight box body (111), a middle counterweight box body (112) and a right counterweight box body (113); the middle counterweight box body (112) is connected between the left counterweight box body (111) and the right counterweight box body (113); the inner cavities of the left counterweight box body (111), the middle counterweight box body (112) and the right counterweight box body (113) are interconnected; when counterweight objects are arranged in the inner cavities of the left counterweight box body (111), the middle counterweight box body (112) and the right counterweight box body (113), the counterweight objects in the three inner cavities form a whole; The top of the counterweight box (11) is provided with at least two lifting lugs (14), and each of the lifting lugs (14) is provided with a lifting hole; A first mounting seat (15) is also provided on the top of the counterweight box (11), and the counterweight device further comprises a camera, which is mounted on the first mounting seat (15); A second mounting seat (16) is also provided on the top of the counterweight box (11), and the counterweight device further comprises a wire harness, which is arranged on the second mounting seat (16); A third mounting seat (17) is also provided on the top of the counterweight box (11), and the counterweight device further comprises a lighting fixture, which is mounted on the third mounting seat (17).

10. The weight balancing device according to any one of claims 1 to 8, characterized in that: The fastening assembly (13) further comprises a first pad (181) and a second pad (182), wherein the first pad (181) is provided with a first through hole, and the second pad (182) is provided with a second through hole, the first pad (181) and the second pad (182) are arranged at opposite ends of the push rod (131), the first connecting member (132) passes through the first through hole and is connected to the push rod (131), and the second connecting member (133) passes through the second through hole and is connected to the push rod (131).

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