Counterweight assembly and operation machine

Abstract

The invention relates to the field of operation machinery, and discloses a counterweight assembly and operation machinery. The counterweight assembly comprises a connecting rod, the connecting rod extends in the first direction, a connecting hole is formed in the connecting rod and used for being connected with a positioning hole of the counterweight mounting frame, the axis of the connecting hole intersects with the first direction, and an annular groove is formed in the outer side wall of the connecting rod; the base is provided with a mounting hole allowing the connecting rod to penetrate, the mounting hole extends in the first direction, the clamping piece is connected with the base, the clamping piece is arranged in the annular groove and is in sliding fit with the annular groove, and the clamping piece is used for limiting the annular groove in the first direction. When the clamping piece limits the connecting rod in the first direction, the connecting rod cannot be circumferentially limited, so that the connecting rod can freely rotate in the mounting hole, the orientation of the connecting hole is conveniently adjusted, the parallelism error of the axis of the connecting hole and the axis of the positioning hole is reduced, and the machining precision is improved. The problem that the first positioning piece cannot be inserted into the connecting hole and the positioning hole is avoided or improved.

Description

Technical Field

[0001] The present invention relates to the technical field of operating machinery, and in particular to a counterweight assembly and an operating machinery. Background Art

[0002] Cranes and other operating machinery need to hang different counterweights during operation to meet the needs of different working conditions.

[0003] In the related art, the working machine includes a counterweight mounting frame, a counterweight assembly and a lifting device. The counterweight assembly includes a base and a connecting rod, which extends in a vertical direction and is fixedly connected to the base. A connecting hole is provided on the connecting rod, and a positioning hole is provided on the counterweight mounting frame. The positioning hole and the connecting hole are connected by a positioning pin. The lifting device is used to drive the counterweight to rise and fall so that the connecting hole of the counterweight can be docked with the mounting frame.

[0004] However, due to processing errors, assembly errors or long-term deformation due to stress, there may be a large parallelism error between the connecting hole on the connecting rod and the positioning hole on the counterweight mounting frame, resulting in the inability to install the positioning pin shaft. Summary of the invention

[0005] In view of this, the present invention provides a counterweight assembly and an operating machine to solve or improve the problem that the parallelism error between the connecting hole on the connecting rod and the positioning hole on the counterweight mounting frame is large, resulting in the inability to install the positioning pin shaft.

[0006] In a first aspect, the present invention provides a counterweight assembly, comprising:

[0007] A connecting rod, the connecting rod extending along a first direction, the connecting rod being provided with a connecting hole, the connecting hole being used to be connected with a positioning hole of a counterweight mounting frame, the axis of the connecting hole intersecting with the first direction, and an annular groove being provided on an outer side wall of the connecting rod;

[0008] A base and a clamping piece, wherein the base is provided with a mounting hole for the connecting rod to pass through, the mounting hole extends along the first direction, the clamping piece is connected to the base, the clamping piece is placed in the annular groove and slidably cooperates with the annular groove, and the clamping piece is used to limit the annular groove in the first direction.

[0009] In an optional embodiment, the number of the clamping parts is at least two, and at least two of the clamping parts are distributed along the circumference of the connecting rod.

[0010] In an optional embodiment, the counterweight assembly further includes at least two threaded fasteners, which pass through corresponding clamping members and are threadedly connected to the base, and each clamping member has a corresponding threaded fastener.

[0011] In an optional embodiment, the counterweight assembly further includes a clamping member, and in the first direction, at least two of the clamping members are disposed between the clamping member and the base, and the threaded fastener passes through the clamping member and the corresponding clamping member and is threadedly connected to the base.

[0012] In an optional embodiment, the mounting hole passes through the base along the first direction, and in the first direction, the base has a first side and a second side;

[0013] The portion of the connecting rod provided with the connecting hole is provided on the first side of the base, the portion of the connecting rod provided with the annular groove is provided on the second side of the base, and the clamping member is connected to the second side of the base.

[0014] In an optional embodiment, a first groove is provided on the surface of the second side of the base, the mounting hole passes through the bottom of the first groove, the clamping member is provided in the first groove and connected to the first groove, and the height of the connecting rod protruding from the bottom of the first groove is less than or equal to the depth of the first groove.

[0015] In a second aspect, the present invention further provides a working machine, comprising a counterweight mounting frame, a first positioning member, and the counterweight assembly as described above;

[0016] Wherein, the counterweight mounting frame is provided with a positioning hole, and the first positioning member is passed through the positioning hole and the connecting hole.

[0017] In an optional embodiment, the working machine further includes:

[0018] A support seat, the support seat is connected to the counterweight mounting frame, the support seat is slidably connected to the first positioning member, and is used to support the first positioning member;

[0019] A position detection device, which is disposed on the support seat or the counterweight mounting frame and is used to detect position information of the first positioning member;

[0020] A control system is electrically connected to the position detection device, and when the control system determines based on the position information that the first positioning member is not inserted into place or not pulled out into place, an alarm message is sent.

[0021] In an optional embodiment, the working machine further comprises a lifting drive device, the lifting drive device is used to lift the counterweight assembly, the lifting drive device is electrically connected to the control system, and when the control system determines based on the position information that the first positioning member is not inserted into place or pulled out into place, the control system sends the alarm information to the lifting drive device to control the lifting drive device to remain in a stationary state;

[0022] And / or, the operating machine also includes an alarm component, which is electrically connected to the control system. When the control system determines based on the position information that the first positioning member is not inserted into place or pulled out into place, the control system sends the alarm information to the alarm component to control the alarm component to alarm.

[0023] In an optional embodiment, the working machine further comprises a limiting member, and the limiting member is connected to the first positioning member;

[0024] The support seat is provided with a guide groove extending along the axial direction of the positioning hole, and both ends of the guide groove are closed along the axial direction of the positioning hole, and the guide groove penetrates the support seat in a direction perpendicular to the axial direction of the positioning hole;

[0025] The limiting member is slidably arranged in the guide groove along the axial direction of the positioning hole, and a clamping groove is provided at the portion of the limiting member opposite to the side wall of the guide groove. The side wall of the guide groove is placed in the clamping groove to limit the limiting member in the penetrating direction of the guide groove.

[0026] In an optional embodiment, the working machine further comprises a second positioning member, the support seat is provided with a first limiting hole and a second limiting hole, the axes of the first limiting hole and the second limiting hole both intersect with the sliding path of the limiting member, and the second positioning member can be selectively placed in the first limiting hole and the second limiting hole;

[0027] When the first positioning member is inserted into place, the second positioning member is used to be arranged in the first limiting hole and is located on the side of the limiting member close to the second limiting hole. When the first positioning member is pulled out into place, the second positioning member is used to be arranged in the second limiting hole and is located on the side of the limiting member close to the first limiting hole.

[0028] The counterweight assembly provided by the present invention is characterized in that a connecting rod is inserted into the mounting hole of the base, and a clamping piece connected to the base is placed in the annular groove of the connecting rod, so that the mounting hole can limit the connecting rod in a direction perpendicular to the first direction, and the limiting groove can limit the connecting rod in the first direction, thereby fixing the connecting rod to the base through the joint action of the mounting hole and the clamping piece.

[0029] In addition, the clamping piece is slidably fitted with the annular groove, so when the clamping piece limits the connecting rod in the first direction, it does not form a circumferential limit on the connecting rod, so that the connecting rod can rotate freely in the mounting hole to facilitate the adjustment of the direction of the connecting hole, reduce the parallelism error of the axes of the connecting hole and the positioning hole, and avoid or improve the problem that the first positioning piece cannot be inserted into the connecting hole and the positioning hole.

[0030] The operating machine provided by the present invention includes the counterweight assembly provided by the present invention, and thus includes all the above-mentioned advantages of the counterweight assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0032] Figure 1 An exploded view of the structure of a counterweight assembly provided in an embodiment of the present invention;

[0033] Figure 2 A schematic diagram of the structure of a connecting rod provided in an embodiment of the present invention;

[0034] Figure 3 A front view of a counterweight assembly provided by an embodiment of the present invention;

[0035] Figure 4 for Figure 3 A partial enlarged view of position Ⅰ in the view shown;

[0036] Figure 5 A three-dimensional angle schematic diagram of a counterweight assembly provided in an embodiment of the present invention;

[0037] Figure 6 A schematic diagram of the structure of a counterweight assembly provided by an embodiment of the present invention when installed on a rotary platform;

[0038] Figure 7 A schematic diagram of the structure of another counterweight assembly provided by an embodiment of the present invention when installed on a rotary platform;

[0039] Figure 8 for Figure 7 A partial enlarged view of position II in the view shown;

[0040] Fig. 9 A schematic diagram of the structure of another counterweight assembly provided by an embodiment of the present invention when installed on a rotary platform;

[0041] Fig.10 for Fig. 9 A partial enlarged view of location III in the view shown;

[0042] Fig.11 A schematic structural diagram of another counterweight assembly provided by an embodiment of the present invention when installed on a rotary platform;

[0043] Fig.12 for Fig.11A partial enlarged view of position IV in the view shown;

[0044] Fig.13 A schematic diagram of the structure of the connection between the first positioning member and the support seat provided in an embodiment of the present invention;

[0045] Fig.14 It is a structural schematic diagram of a clamping shaft provided in an embodiment of the present invention;

[0046] Fig.15 It is a schematic structural diagram of a counterweight mounting frame provided in an embodiment of the present invention.

[0047] Description of reference numerals:

[0048] 1. Connecting rod; 101. Connecting hole; 102. Annular groove; 103. Open groove; 2. Base; 201. Mounting hole; 202. First recessed groove; 203. Annular protrusion; 3. Snap-fit ​​piece; 4. Threaded fastener; 5. Pressing piece; 6. Counterweight mounting frame; 601. Positioning hole; 602. Snap-fit ​​hole; 7. First positioning piece; 8. Support seat; 801. Guide groove; 802. First limiting hole; 803. Second limiting hole; 804. Bending plate; 805. Side plate; 9. Limiting piece; 901. Slot; 10. Position detection device; 11. Second positioning piece; 12. Clamping shaft; 13. Connecting plate; 14. Trigger piece; 15. Rotating platform; X, first direction. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0050] Combine the following Figures 1 to 15 , describing the counterweight assembly provided in an embodiment of the present invention.

[0051] Specifically, the counterweight assembly includes a connecting rod 1 , a base 2 and a clamping member 3 .

[0052] The connecting rod 1 extends along a first direction X. For example, when the counterweight assembly is in use, the first direction X is a vertical direction. The connecting rod 1 is provided with a connecting hole 101, which is used to connect with the positioning hole 601 of the counterweight mounting frame 6. The axis of the connecting hole 101 intersects with the first direction X. For example, the connecting hole 101 passes through the connecting rod 1, and the axis of the connecting hole 101 is perpendicular to the first direction X. An annular groove 102 is provided on the outer side wall of the connecting rod 1. Specifically, the annular groove 102 surrounds the circumference of the connecting rod 1.

[0053] The base 2 is provided with a mounting hole 201 for the connecting rod 1 to pass through, and the mounting hole 201 extends along the first direction X. The connecting rod 1 passes through the mounting hole 201, and the mounting hole 201 is used to limit the connecting rod 1 along a direction perpendicular to the first direction X. Optionally, the base 2 itself can be used as a counterweight, or other counterweights can be placed on the base 2 to achieve the effect of increasing the weight of the counterweight assembly.

[0054] The clamping member 3 is connected to the base 2, for example, the clamping member 3 can be connected to the base 2 by a threaded fastener 4, or can be welded. The clamping member 3 is placed in the annular groove 102, and the clamping member 3 is slidably matched with the annular groove 102. The clamping member 3 is used to limit the annular groove 102 in the first direction X.

[0055] In this embodiment, when installing the connecting rod 1, the counterweight assembly can be lifted by the lifting drive device until the connecting hole 101 on the connecting rod 1 is aligned with the positioning hole 601 on the counterweight mounting frame 6, and the first positioning member 7 is inserted into the connecting hole 101 and the positioning hole 601. For example, the first positioning member 7 is set as a pin.

[0056] If the parallelism error between the axes of the connecting hole 101 and the positioning hole 601 is large, the connecting rod 1 can be rotated in the mounting hole 201 to adjust the parallelism between the axes of the connecting hole 101 and the positioning hole 601 so as to facilitate the first positioning member 7 to be inserted into the connecting hole 101 and the positioning hole 601.

[0057] In this way, the connecting rod 1 is inserted into the mounting hole 201 of the base 2, and the clamping member 3 connected to the base 2 is placed in the annular groove 102 of the connecting rod 1, so that the mounting hole 201 can limit the connecting rod 1 along the direction perpendicular to the first direction X, and the limiting groove can limit the connecting rod 1 along the first direction X, so that the connecting rod 1 is fixed to the base 2 through the joint action of the mounting hole 201 and the clamping member 3.

[0058] In addition, the clamping member 3 is slidably engaged with the annular groove 102, so when the clamping member 3 limits the connecting rod 1 in the first direction X, it does not form a circumferential limit on the connecting rod 1, so that the connecting rod 1 can rotate freely in the mounting hole 201, so as to adjust the orientation of the connecting hole 101, reduce the parallelism error between the axes of the connecting hole 101 and the positioning hole 601, and avoid or improve the problem that the first positioning member 7 cannot be inserted into the connecting hole 101 and the positioning hole 601.

[0059] In some embodiments provided by the present invention, the number of the clamping parts 3 is at least two, and the at least two clamping parts 3 are distributed along the circumference of the connecting rod 1 .

[0060] In this embodiment, by providing at least two clamping members 3 to jointly limit the annular groove 102, the external force on the connecting rod 1 can be more evenly dispersed, thereby improving the stability and reliability of the counterweight assembly. Even if one of the clamping members 3 fails, the other clamping members 3 can still play a certain fixing role, reducing the risk of the connecting rod 1 falling off.

[0061] In addition, at least two clamping members 3 can jointly bear a greater load, thereby improving the connection strength between the connecting rod 1 and the base 2.

[0062] In some embodiments provided by the present invention, the surface of the clamping member 3 facing the bottom of the annular groove 102 is configured as an arc surface.

[0063] In this embodiment, by making the arc surface of the clamp 3 match with the annular groove 102, the contact area between the clamp 3 and the annular groove 102 can be increased in the circumferential direction of the annular groove 102, so that the load is more evenly distributed between the clamp 3 and the annular groove 102, reducing the risk of deformation or damage due to local overload.

[0064] Optionally, the clamping member 3 can be set as a fan-shaped ring. By cooperating with the annular groove 102, the contact area between the fan-shaped ring and the annular groove 102 can be increased in the circumferential direction of the annular groove 102, so that the load is more evenly distributed between the fan-shaped ring and the annular groove 102, reducing the risk of deformation or damage due to local overload.

[0065] In addition, the fan-shaped ring can be formed by dividing the annular plate. On the one hand, at least two fan-shaped rings can be formed by the annular plate, so that the annular groove 102 can be limited by at least two fan-shaped rings; on the other hand, the annular plate structure is relatively regular and easy to process, thereby making the processing difficulty of the fan-shaped ring smaller and the processing cost lower.

[0066] In some embodiments provided by the present invention, the counterweight assembly further includes at least two threaded fasteners 4. The threaded fasteners 4 may be bolts or screws.

[0067] The threaded fastener 4 passes through the corresponding clamping member 3 and is threadedly connected to the base 2, that is, the clamping member 3 is provided with a through hole for the threaded fastener 4 to pass through. Each clamping member 3 has a corresponding threaded fastener 4, so that each clamping member 3 can be connected to the base 2 through the corresponding threaded fastener 4.

[0068] In this embodiment, the clamping part 3 is connected to the base 2 via a threaded fastener 4. When the clamping part 3 is damaged due to force or wear, the threaded fastener 4 can be unscrewed to replace the clamping part 3 without replacing the entire connecting rod 1, thereby significantly reducing the replacement cost.

[0069] Optionally, each clamping member 3 is connected to the base 2 via at least two threaded fasteners 4. By providing at least two threaded fasteners 4 for each clamping member 3, on the one hand, the connection strength between the clamping member 3 and the base 2 can be improved, and the possibility of the clamping member 3 being loosened or falling off can be reduced; on the other hand, the clamping member 3 can be prevented from rotating around the threaded fasteners 4, so as to improve the stability of the sliding fit between the clamping member 3 and the annular groove 102.

[0070] In some embodiments provided by the present invention, the counterweight assembly further includes a pressing member 5 .

[0071] In the first direction X, at least two clamping members 3 are disposed between the pressing member 5 and the base 2 , and the threaded fastener 4 passes through the pressing member 5 and the corresponding clamping member 3 , and is threadedly connected to the base 2 .

[0072] In this embodiment, the clamping member 3 is clamped between the clamping member 5 and the base 2, and the clamping force of the threaded fastener 4 acts on the clamping member 3 through the clamping member 5, which can reduce the problem of deformation of the clamping member 3 due to excessive concentration of the clamping load.

[0073] In addition, since there is a distance between the annular groove 102 and the threaded fastener 4, when the two act together on the clamping member 3, a bending moment will be generated on the clamping member 3, causing the clamping member 3 to bend. In this embodiment, the threaded fastener 4 acts on the clamping member 3 through the clamping member 5. In the direction perpendicular to the threaded fastener 4, the clamping member 5 can be closer to the annular groove 102. Therefore, when the clamping member 5 and the annular groove 102 act together on the clamping member 3, the bending moment on the clamping member 3 is smaller, thereby solving or improving the problem that the clamping member 3 is easily bent and deformed.

[0074] Optionally, the pressing member 5 is configured as an annular plate, and the annular plate is sleeved on the connecting rod 1. With such a configuration, the structure of the pressing member 5 is simple.

[0075] In some embodiments provided by the present invention, the mounting hole 201 passes through the base 2 along the first direction X, and the base 2 has a first side and a second side along the first direction X. For example, the first side may be the upper side of the base 2, and the second side may be the lower side of the base 2.

[0076] The portion of the connecting rod 1 with the connecting hole 101 is arranged on the first side of the base 2 , the portion of the connecting rod 1 with the annular groove 102 is arranged on the second side of the base 2 , and the clamping member 3 is connected to the second side of the base 2 .

[0077] In this embodiment, the portion of the connecting rod 1 provided with the annular groove 102 is provided on the second side of the base 2, so as to facilitate the connection of the clamping component 3 to the second side of the base 2, thereby making full use of the space on the second side of the base 2 and avoiding the occupation of the space on the first side of the base 2 by the clamping component 3, so as to facilitate the arrangement of the counterweight block on the first side of the base 2.

[0078] Optionally, the counterweight block is provided with a through hole for the connecting rod 1 to pass through.

[0079] In some embodiments provided by the present invention, a first groove 202 is provided on the surface of the second side of the base 2, and the mounting hole 201 passes through the bottom of the first groove 202, that is, the mounting hole 201 is connected to the first groove 202, and one end of the connecting rod 1 provided with an annular groove 102 passes through the mounting hole 201 and extends into the first groove 202.

[0080] The clamping member 3 is disposed in the first sink groove 202 and connected to the first sink groove 202. For example, the clamping member 3 is connected to the bottom of the first sink groove 202 through the threaded fastener 4. The height of the connecting rod 1 protruding from the bottom of the first sink groove 202 is less than or equal to the depth of the first sink groove 202, that is, the end of the connecting rod 1 provided with the first sink groove 202 does not protrude from the first sink groove 202.

[0081] In this embodiment, a first groove 202 is provided on the surface of the second side of the base 2, one end of the connecting rod 1 provided with the first groove 202 does not protrude from the first groove 202, and the clamp 3 is provided in the first groove 202, so that neither the connecting rod 1 nor the clamp 3 protrudes from the surface of the second side of the base 2, so as to prevent the base 2 from contacting a supporting surface such as the ground through the surface of the second side, thereby increasing the contact area between the base 2 and the supporting surface, and making the base 2 more stable.

[0082] Furthermore, the first sinking groove 202 is used for the lifting drive device to extend into. With such a configuration, on the one hand, when the lifting drive device drives the base 2 to rise and fall, the lifting drive device extends into the first sinking groove 202, and the first sinking groove 202 forms a limit for the lifting drive device to prevent the base 2 from sliding relative to the lifting drive device. On the other hand, when the lifting drive device lowers the base 2 into place, the base 2 always has a unique and accurate placement position.

[0083] In some embodiments provided by the present invention, the number of connecting rods 1 is set to two, and the base 2 is provided with mounting holes 201 corresponding to the connecting rods 1 one by one, and each connecting rod 1 is provided with an annular groove 102 for inserting the corresponding clip 3.

[0084] In this embodiment, the connecting rods 1 can be connected to the corresponding counterweight mounting frames 6 respectively, so that the base 2 can be fixed by the two connecting rods 1, thereby reducing the risk of shaking and tilting of the base 2. In addition, the two connecting rods 1 can better disperse the load, reduce the force of a single connecting rod 1, and improve the bearing capacity of the connecting rod 1.

[0085] In some embodiments provided by the present invention, the surface of the first side of the base 2 is provided with an annular protrusion 203, and the annular protrusion 203 is used to be sleeved on the outside of the connecting rod 1. Correspondingly, the bottom surface of the counterweight block used to be set on the base 2 is provided with a positioning groove, and when the counterweight block is set on the base 2, the positioning groove of the counterweight block is positioned and matched with the annular protrusion to prevent the counterweight block from shifting on the base 2.

[0086] Optionally, the outer side wall of the annular protrusion 203 is set as a conical surface, and the diameter of the conical surface gradually increases from the first side to the second side of the base 2. By setting the outer wall of the annular protrusion 203 as a conical surface, it can play a guiding role, making it easier for the annular protrusion 203 to be inserted into the positioning groove of the counterweight.

[0087] An embodiment of the present invention further provides a working machine. For example, the working machine includes but is not limited to a crane.

[0088] Specifically, the working machine includes a counterweight mounting frame 6, a first positioning member 7 and the counterweight assembly as described above.

[0089] The counterweight mounting frame 6 is provided with a positioning hole 601, and the first positioning member 7 is passed through the positioning hole 601 and the connecting hole 101 to connect the positioning hole 601 and the connecting hole 101. Specifically, the first positioning member 7 is detachably passed through the positioning hole 601 and the connecting hole 101 to facilitate the disassembly of the counterweight assembly. Optionally, the first positioning member 7 is set as a pin.

[0090] In this embodiment, the operating machine includes a counterweight assembly, and also includes all the above advantages of the counterweight assembly, so it will not be described in detail.

[0091] In some embodiments provided by the present invention, the working machine further includes a frame and a rotating platform 15 .

[0092] The rotating platform 15 is rotatably disposed on the vehicle frame, for example, the rotating axis of the rotating platform 15 extends in the vertical direction. The counterweight mounting frame 6 is rotatably disposed on the rotating platform 15 , and the rotating axis of the counterweight mounting frame 6 is parallel to the rotating axis of the rotating platform 15 .

[0093] In this embodiment, by arranging the counterweight mounting frame 6 on the revolving platform 15 , the counterweight assembly can be rotated along with the revolving platform 15 during the rotation of the revolving platform 15 , so that the revolving platform 15 always maintains balance.

[0094] By rotatably connecting the counterweight mounting frame 6 to the rotary platform 15 , the counterweight mounting frame 6 can have at least two stop positions, including a first stop position and a second stop position.

[0095] For example, in the first stop position, the counterweight mounting frame 6 faces the front of the operating machine, and in the second stop position, the counterweight mounting frame 6 faces the rear of the operating machine. When the counterweight mounting frame 6 is in different stop positions, the distance between the counterweight assembly and the rotation center of the rotating platform 15 can be adjusted to ensure that the optimal center of gravity distribution can be maintained under different operating conditions of the operating machine.

[0096] In some embodiments provided by the present invention, the working machine further includes a support seat 8, a position detection device 10 and a control system.

[0097] The support seat 8 is connected to the counterweight mounting frame 6 , and the support seat 8 is slidably connected to the first positioning member 7 and is used to support the first positioning member 7 .

[0098] The position detection device 10 is disposed on the support seat 8 or the counterweight mounting frame 6 and is used to detect the position information of the first positioning member 7 .

[0099] The control system is electrically connected to the position detection device 10. Based on the position information, the control system determines that the first positioning member 7 is not inserted into place or not pulled out into place, and sends an alarm message. For example, the insertion into place includes the first positioning member 7 passing through the connecting hole 101 and the positioning hole 601 to connect the connecting hole 101 and the positioning hole 601. The pulling out into place includes the first positioning member 7 being disengaged from the connecting hole 101 and the positioning hole 601, so that the connecting rod 1 and the counterweight mounting frame 6 can move relative to each other.

[0100] In this embodiment, the first positioning member 7 can be supported by providing a support seat 8 that is slidably connected to the first positioning member 7 on the counterweight mounting frame 6. In this way, after the first positioning member 7 is pulled out from the connecting hole 101 and the positioning hole 601, the first positioning member 7 can be placed on the support seat 8 to avoid the problem of loss of the first positioning member 7 due to improper placement.

[0101] Based on the position information transmitted by the position detection device 10, the control system can determine whether the first positioning member 7 is inserted into or pulled out into place, and when it is determined that the first positioning member 7 is not inserted into or pulled out into place, an alarm message is sent. For example, the alarm message can be sent to the operator to alert the operator, or the alarm message can also be sent to the corresponding execution component to control the execution component to perform the corresponding operation.

[0102] Such an arrangement can avoid the problem of potential safety hazards when operating the counterweight assembly when the first positioning member 7 is not inserted into place or not pulled out into place.

[0103] Optionally, the control system may be a complete machine control system of the operating machine, or may be a sub-control system independent of the complete machine control system.

[0104] Optionally, the position detection device 10 is a proximity switch or a travel switch, and the number of the position detection devices 10 is at least two, including a first position detection device 10 and a second position detection device 10. The first position detection device 10 and the second position detection device 10 are both electrically connected to the control system.

[0105] The operating machine further includes a trigger member 14, which is connected to the first positioning member 7 and protrudes from the side wall of the first positioning member 7. The first position detection device 10 and the second position detection device 10 are distributed along the moving path of the trigger member 14, and the first position detection device 10 corresponds to the position where the first positioning member 7 is inserted into place, and the second position detection device 10 corresponds to the position where the first positioning member 7 is pulled out of place.

[0106] In this embodiment, when the trigger 14 moves to the position of the first position detection device 10, the first position detection device 10 transmits position information to the control system. When the trigger 14 moves to the position of the second position detection device 10, the second position detection device 10 transmits position information to the control system.

[0107] The control system can determine whether the first positioning member 7 is inserted into or pulled out of position based on the signals transmitted by the first position detection device 10 and the second position detection device 10 .

[0108] Of course, the position detection device 10 is not limited to being set in the above-mentioned form. For example, in other embodiments provided by the present invention, the position detection device 10 can also be set as a displacement sensor, including but not limited to a magnetostrictive displacement sensor and a laser displacement sensor.

[0109] In this embodiment, the control system can calculate the insertion and extraction position of the first positioning member 7 based on the position information transmitted by the position sensor, and further determine whether the first positioning member 7 is inserted into or pulled out of place.

[0110] In some embodiments provided by the present invention, the working machine further comprises a lifting drive device. Optionally, the lifting drive device can be configured as an oil cylinder, for example, the oil cylinder can be configured on the vehicle frame.

[0111] The lifting drive device is used to lift the counterweight assembly. The lifting drive device is electrically connected to the control system. Based on the position information, when the control system determines that the first positioning member 7 is not inserted into place or pulled out into place, it sends an alarm message to the lifting drive device to control the lifting drive device to remain stationary.

[0112] In this embodiment, during the installation of the counterweight assembly, the lifting drive device can be controlled to drive the counterweight assembly to rise until the connecting hole 101 on the counterweight assembly is opposite to the positioning hole 601 on the counterweight mounting frame 6, the lifting drive device is controlled to stop, and then the first positioning member 7 is inserted into the connecting hole 101 and the positioning hole 601.

[0113] When the control system determines that the first positioning member 7 is not inserted into place, the control system controls the lifting drive device to remain stationary to avoid the problem of the operator misoperating and controlling the lifting drive device to descend.

[0114] Similarly, when the control system determines that the first positioning member 7 has not been pulled out into place, the control system controls the lifting drive device to remain stationary to avoid the operator's misoperation and the problem of controlling the lifting drive device to descend.

[0115] Optionally, the control system is electrically connected to the drive assembly of the rotating platform 15, and when the control system determines based on the position information that the first positioning member 7 is not inserted into place or pulled out into place, it sends an alarm message to the drive assembly of the rotating platform 15 to control the drive assembly of the rotating platform 15 to remain stationary.

[0116] In this embodiment, when the control system determines that the first positioning member 7 is not inserted into place, the control system controls the driving assembly of the rotary platform 15 to remain stationary, so as to avoid the problem of the operator misoperating and controlling the rotary platform 15 to rotate.

[0117] Similarly, when the control system determines that the first positioning member 7 is not pulled out in place, the control system controls the slewing platform 15 to remain stationary to avoid the problem of the operator misoperating and controlling the slewing platform 15 to slew.

[0118] In some embodiments provided by the present invention, the first positioning member 7 can be driven by a reciprocating drive device, etc. In this way, the first positioning member 7 can be driven by the reciprocating drive device to be inserted into the connecting hole 101 and the positioning hole 601, or the first positioning member 7 can be pulled out from the connecting hole 101 and the positioning hole 601, thereby improving the automation degree of the operating machine.

[0119] Optionally, the reciprocating drive device can be configured as a pneumatic cylinder, an oil cylinder or an electric cylinder.

[0120] Of course, the working machine may also include a position detection component. The position detection component is used to detect the position signal of the lifting drive device.

[0121] The position detection assembly, the lifting drive device and the reciprocating drive device are all electrically connected to the control system. Based on the position signal transmitted by the position detection assembly, the control system determines that when the lifting drive device drives the counterweight assembly to be in place, it controls the reciprocating drive device to drive the first positioning member 7 to insert into the positioning hole 601 and the connecting hole 101.

[0122] Optionally, when the control system receives the pin pulling instruction, the control system controls the reciprocating drive device to drive the first positioning member 7 to be pulled out from the positioning hole 601 and the connecting hole 101. Based on the position information transmitted by the position detection device 10, the control system determines that when the first positioning member 7 is pulled out into place, and controls the lifting drive device to drive the counterweight assembly to descend.

[0123] Such an arrangement enables the operating machine to complete the operations of automatically inserting and removing pins, thereby improving the automation level of the operating machine.

[0124] Optionally, the principle of the position detection component can refer to the position detection device 10 described above, so it is not described in detail.

[0125] In some embodiments provided by the present invention, the working machine further comprises an alarm component, which may be an alarm, such as but not limited to an audible and visual alarm.

[0126] The alarm component is electrically connected to the control system. When the control system determines based on the position information that the first positioning member 7 is not inserted into place or is pulled out of place, it sends an alarm message to the alarm component to control the alarm component to alarm.

[0127] In this embodiment, when the control system determines that the first positioning member 7 is not inserted into place or not pulled out into place, the control system sends an alarm message to the operator through the alarm component to remind the operator to pay attention and reduce the possibility of the operator making an erroneous operation.

[0128] In some embodiments provided by the present invention, the support seat 8 is provided with a guide groove 801 extending along the axial direction of the positioning hole 601, and the two ends of the guide groove 801 are closed along the axial direction of the positioning hole 601. The guide groove 801 penetrates the support seat 8 in a direction perpendicular to the axial direction of the positioning hole 601.

[0129] The operating machine further includes a stopper 9, which is connected to the first positioning member 7. The stopper 9 is slidably disposed in the guide groove 801 along the axial direction of the positioning hole 601, and a clamping groove 901 is disposed at a portion of the stopper 9 opposite to the side wall of the guide groove 801, and the side wall of the guide groove 801 is placed in the clamping groove 901 to limit the stopper 9 in the penetration direction of the guide groove 801. It can be understood that the penetration direction of the guide groove 801 is the direction of the notch of the guide groove 801.

[0130] In this embodiment, the limit member 9 is connected to the first positioning member 7. When the first positioning member 7 is inserted into the positioning hole 601 and the connecting hole 101, or pulled out from the positioning hole 601 and the connecting hole 101, the first positioning member 7 drives the limit member 9 to slide along the guide groove 801 on the support seat 8.

[0131] By closing the two ends of the guide groove 801, the two ends of the guide groove 801 can limit the limit member 9 to prevent the limit member 9 from falling out along the extension direction of the guide groove 801. At the same time, the card slot 901 of the limit member 9 cooperates with the side wall limit of the guide groove 801, so that the guide groove 801 can form a limit in the penetration direction of the guide groove 801, thereby preventing the limit member 9 from detaching from the guide groove 801, so that the first positioning member 7 can always remain on the support seat 8, avoiding the loss of the first positioning member 7.

[0132] Optionally, the limiting member 9 is configured as a limiting plate. Optionally, the limiting member 9 is connected to the end surface of the first positioning member 7, for example, the limiting member 9 is connected to the end surface of the first positioning member 7 via a threaded connection.

[0133] In some embodiments provided by the present invention, the working machine further comprises a second positioning member 11. The second positioning member 11 can be configured as a pin shaft, for example, a pin retaining spring pin.

[0134] The support seat 8 is provided with a first limiting hole 802 and a second limiting hole 803. The axes of the first limiting hole 802 and the second limiting hole 803 intersect with the sliding path of the limiting member 9, and the first limiting hole 802 and the second limiting hole 803 are arranged along the sliding path of the limiting member 9. The second positioning member 11 can be selectively placed in the first limiting hole 802 and the second limiting hole 803.

[0135] When the first positioning member 7 is inserted into place, the second positioning member 11 is used to be arranged in the first limiting hole 802 and is located on the side of the limiting member 9 close to the second limiting hole 803. When the first positioning member 7 is pulled out of place, the second positioning member 11 is used to be arranged in the second limiting hole 803 and is located on the side of the limiting member 9 close to the first limiting hole 802.

[0136] In this embodiment, after the first positioning member 7 is inserted into place, the second positioning member 11 is inserted into the first limiting hole 802. The second positioning member 11 is located on the side of the limiting member 9 close to the second limiting hole 803 to limit the limiting member 9 from escaping from the positioning hole 601 and the connecting hole 101.

[0137] After the first positioning member 7 is pulled out into place, the second positioning member 11 is inserted into the second limiting hole 803 . The second positioning member 11 is located on the side of the limiting member 9 close to the first limiting hole 802 to limit the limiting hole from entering the positioning hole 601 .

[0138] In this configuration, the second positioning member 11 is used to limit and fix the limiting member 9 , which can prevent the first positioning hole 601 from moving freely, thereby improving the stability of the first positioning member 7 .

[0139] In some embodiments provided by the present invention, the support seat 8 includes a bent plate 804 .

[0140] The bending plate 804 includes a main body plate and a folding plate connected to the side edge of the main body plate. The guide groove 801 is provided on the main body plate, and the bending plate 804 is used to be connected to the counterweight mounting frame 6. For example, the bending plate 804 can be welded to the counterweight mounting frame 6 or connected by a threaded connector. A through hole is provided at a position of the bending plate 804 opposite to the positioning hole 601, and the through hole is used for the first positioning member 7 to pass through.

[0141] Furthermore, the support base 8 further includes two side plates 805 , and the two side plates 805 are respectively connected to two sides of the main plate. The first limiting hole 802 and the second limiting hole 803 both pass through the two side plates 805 .

[0142] In some embodiments provided by the present invention, an open groove 103 is provided at one end of the connecting rod 1 away from the annular groove 102 , the notch of the open groove 103 faces away from the annular groove 102 , and the open groove 103 passes through the connecting rod 1 along the axial direction of the connecting hole 101 .

[0143] The counterweight mounting frame 6 is provided with a clamping hole 602, which is parallel to the positioning hole 601. When the connecting hole 101 of the connecting rod 1 is opposite to the positioning hole 601 of the counterweight mounting frame 6, the opening groove 103 is opposite to the clamping hole 602. The operating machine further includes a clamping shaft 12, which is disposed in the clamping hole 602.

[0144] In this embodiment, during the process of lifting the counterweight assembly, as the counterweight assembly rises, the clamping shaft 12 gradually enters the open slot 103, thereby limiting the counterweight assembly and preventing the counterweight assembly from rising too high.

[0145] In addition, when the first positioning member 7 penetrates the positioning hole 601 and the connecting hole 101, the clamping shaft 12 passes through the clamping hole 602 and the opening groove 103, thereby preventing the counterweight assembly from rotating around the first positioning member 7 to improve the stability of the counterweight assembly.

[0146] Optionally, the cross section of the opening groove 103 perpendicular to the axial direction of the connecting hole 101 is a semi-waist-shaped groove, and correspondingly, the cross section of the clamping shaft 12 is a waist-shaped structure.

[0147] Optionally, a connecting plate 13 is provided on the end surface of the clamping shaft 12, and the connecting plate 13 is welded to the clamping shaft 12 or connected by a threaded connector. The connecting plate 13 is welded to the counterweight mounting member or connected by a threaded connector. The clamping shaft 12 is connected to the counterweight mounting member through the connecting plate 13 to prevent the clamping shaft 12 from coming out of the clamping hole 602.

[0148] Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the present invention, and such modifications and variations are all within the scope defined by the appended claims.

Claims

1. A counterweight assembly, characterized in that: include: A connecting rod (1), the connecting rod (1) extending along a first direction, the connecting rod (1) being provided with a connecting hole (101), the connecting hole (101) being used to be connected to a positioning hole (601) of a counterweight mounting frame (6), the axis of the connecting hole (101) intersecting with the first direction, and an annular groove (102) being provided on an outer side wall of the connecting rod (1); A base (2) and a clamping member (3), wherein the base (2) is provided with a mounting hole (201) for the connecting rod (1) to pass through, and the mounting hole (201) extends along the first direction. The clamping member (3) is connected to the base (2), and the clamping member (3) is placed in the annular groove (102) and slidably cooperates with the annular groove (102). The clamping member (3) is used to limit the annular groove (102) in the first direction.

2. The counterweight assembly according to claim 1, characterized in that: The number of the clamping parts (3) is at least two, and the at least two clamping parts (3) are distributed along the circumference of the connecting rod (1).

3. The counterweight assembly according to claim 2, characterized in that: The counterweight assembly further comprises at least two threaded fasteners (4), wherein the threaded fasteners (4) pass through the corresponding clamping parts (3) and are threadedly connected to the base (2), and each of the clamping parts (3) has a corresponding threaded fastener (4).

4. The counterweight assembly according to claim 3, characterized in that: The counterweight assembly also includes a clamping member (5). In the first direction, at least two of the clamping members (3) are arranged between the clamping member (5) and the base (2). The threaded fastener (4) passes through the clamping member (5) and the corresponding clamping member (3) and is threadedly connected to the base (2).

5. The counterweight assembly according to any one of claims 1 to 4, characterized in that: The mounting hole (201) passes through the base (2) along the first direction, and in the first direction, the base (2) has a first side and a second side; The portion of the connecting rod (1) provided with the connecting hole (101) is arranged on the first side of the base (2), the portion of the connecting rod (1) provided with the annular groove (102) is arranged on the second side of the base (2), and the clamping member (3) is connected to the second side of the base (2).

6. The counterweight assembly according to claim 5, characterized in that: A first recessed groove (202) is provided on the surface of the second side of the base (2); the mounting hole (201) passes through the bottom of the first recessed groove (202); the clamping member (3) is provided in the first recessed groove (202) and is connected to the first recessed groove (202); and the height of the connecting rod (1) protruding from the bottom of the first recessed groove (202) is less than or equal to the depth of the first recessed groove (202).

7. A working machine, characterized in that: It comprises a counterweight mounting frame (6), a first positioning member (7) and a counterweight assembly according to any one of claims 1 to 6; Wherein, a positioning hole (601) is provided on the counterweight mounting frame (6), and the first positioning member (7) is passed through the positioning hole (601) and the connecting hole (101).

8. The working machine according to claim 7, characterized in that: The working machine also includes: A support seat (8), the support seat (8) is connected to the counterweight mounting frame (6), the support seat (8) is slidably connected to the first positioning member (7), and is used to support the first positioning member (7); A position detection device (10), the position detection device (10) being arranged on the support seat (8) or the counterweight mounting frame (6) and used for detecting position information of the first positioning member (7); A control system is electrically connected to the position detection device (10), and when the control system determines based on the position information that the first positioning member (7) is not inserted into place or is not pulled out into place, an alarm message is sent.

9. The working machine according to claim 8, characterized in that: The operating machine further comprises a lifting drive device, the lifting drive device being used to lift the counterweight assembly, the lifting drive device being electrically connected to the control system, and the control system sending the alarm information to the lifting drive device when it is determined based on the position information that the first positioning member (7) is not inserted into place or pulled out of place, so as to control the lifting drive device to remain in a stationary state; And / or, the operating machine further comprises an alarm component, which is electrically connected to the control system. When the control system determines based on the position information that the first positioning member (7) is not inserted into place or pulled out into place, the control system sends the alarm information to the alarm component to control the alarm component to alarm.

10. The working machine according to claim 8 or 9, characterized in that: The operating machine further comprises a limiting member (9), wherein the limiting member (9) is connected to the first positioning member (7); The support seat (8) is provided with a guide groove (801) extending along the axial direction of the positioning hole (601), and along the axial direction of the positioning hole (601), both ends of the guide groove (801) are closed, and the guide groove (801) passes through the support seat (8) in a direction perpendicular to the axial direction of the positioning hole (601); The limiting member (9) is slidably arranged in the guide groove (801) along the axial direction of the positioning hole (601); a clamping groove (901) is provided at a portion of the limiting member (9) opposite to the side wall of the guide groove (801); the side wall of the guide groove (801) is placed in the clamping groove (901) to limit the limiting member (9) in the penetrating direction of the guide groove (801).

11. The working machine according to claim 10, characterized in that: The operating machine further comprises a second positioning member (11), the support seat (8) is provided with a first limiting hole (802) and a second limiting hole (803), the axes of the first limiting hole (802) and the second limiting hole (803) both intersect with the sliding path of the limiting member (9), and the second positioning member (11) can be selectively placed in the first limiting hole (802) and the second limiting hole (803); When the first positioning member (7) is inserted into place, the second positioning member (11) is used to be arranged in the first limiting hole (802) and is located on the side of the limiting member (9) close to the second limiting hole (803); when the first positioning member (7) is pulled out of place, the second positioning member (11) is used to be arranged in the second limiting hole (803) and is located on the side of the limiting member (9) close to the first limiting hole (802).

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