Crawling ladder mechanism and operation machine

Abstract

The utility model relates to the technical field of operation machinery, and provides a ladder stand mechanism and operation machinery, the ladder stand mechanism comprises a ladder stand assembly, a supporting assembly and a driving assembly, the supporting assembly is suitable for being installed below a vehicle body on the operation machinery, and the supporting assembly is rotatably connected with the ladder stand assembly; the driving assembly comprises a driving part and a connecting rod mechanism, one end of the connecting rod mechanism is fixedly connected with the driving part, and the other end of the connecting rod mechanism is rotationally connected with the crawling ladder assembly; the driving component is suitable for driving the ladder stand assembly to rotate around the supporting assembly so as to conduct state switching between the use state and the storage state. The ladder stand mechanism can be used as an independent device, the overall structure and shape of the operation machine cannot be affected, the size of the operation machine cannot be increased, the ladder stand mechanism does not need to be disassembled in the transportation process, and use is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of operating machinery, in particular to a ladder climbing mechanism and an operating machinery. Background Art

[0002] Working machinery, such as rotary drilling rigs, is a kind of construction machinery suitable for drilling holes in building foundation projects. It is mainly suitable for construction in soil layers such as sand, clay, and silty soil. It is widely used in various foundation constructions such as cast-in-place piles, continuous walls, and foundation reinforcement.

[0003] Generally, the height of the rotary drilling rig is relatively high, and the rotary drilling rig is required to be equipped with a ladder during design to facilitate operators to get on and off the vehicle. In the related art, the ladder of the rotary drilling rig is usually embedded in the side door or installed externally. When the ladder of the rotary drilling rig is embedded in the side door, the side door needs to be dug to leave space, which is easy to damage the side door structure and the shape of the whole vehicle; when the ladder of the rotary drilling rig is installed externally, the overall width of the rotary drilling rig will exceed the transportation width during transportation, and the ladder needs to be disassembled. When the rotary drilling rig is transported to the destination, the ladder needs to be reinstalled, which is troublesome to operate and inconvenient to use. Utility Model Content

[0004] The first aspect of the utility model provides a ladder mechanism to solve at least one of the above-mentioned technical defects in the prior art. The ladder mechanism can be used as an independent device, which not only does not affect the overall structure and shape of the working machinery, but also does not increase the size of the working machinery. It does not need to be disassembled during transportation, and is more convenient to use.

[0005] A second aspect of the present invention provides a working machine.

[0006] The first aspect of the utility model provides a ladder climbing mechanism, comprising:

[0007] Ladder assembly;

[0008] A support assembly, suitable for being installed below the upper body of the working machine, wherein the support assembly is rotatably connected to the ladder assembly;

[0009] The driving assembly includes a driving component and a connecting rod mechanism, one end of the connecting rod mechanism is connected to the driving component, and the other end of the connecting rod mechanism is rotatably connected to the ladder assembly; the driving component is suitable for driving the ladder assembly to rotate around the supporting assembly to switch between a use state and a storage state.

[0010] According to the ladder mechanism provided by the utility model, the connecting rod mechanism includes a rotatably connected rocker arm and a connecting rod, one end of the rocker arm away from the connecting rod is fixedly connected to the driving component, and one end of the connecting rod away from the rocker arm is rotatably connected to the ladder assembly.

[0011] According to the ladder climbing mechanism provided by the utility model, the driving component includes a driving member and a transmission member, the transmission member is arranged at the output end of the driving member, and the connecting rod mechanism is fixedly connected to the transmission member.

[0012] According to the ladder climbing mechanism provided by the utility model, the transmission component includes a supporting component, a transmission rack and a transmission gear;

[0013] The transmission gear is rotatably arranged on the supporting component, and the transmission rack is meshed with the transmission gear;

[0014] The output end of the driving member is fixedly connected to the transmission rack, and the connecting rod mechanism is connected to the transmission gear.

[0015] According to the ladder climbing mechanism provided by the utility model, the transmission component further includes a transmission shaft, and the transmission shaft is arranged on the supporting component;

[0016] The transmission gear is arranged on the transmission shaft, and the connecting rod mechanism is fixedly connected to the end of the transmission shaft.

[0017] According to the ladder climbing mechanism provided by the utility model, the support component includes a support body and a bearing seat, and the bearing seat is arranged on two opposite sides of the support body;

[0018] The transmission shaft is mounted on the bearing seat through a bearing;

[0019] The support body is provided with a guide groove, and the transmission rack is arranged in the guide groove and can perform linear reciprocating motion along the extending direction of the guide groove.

[0020] According to the ladder mechanism provided by the utility model, the ladder assembly includes a main ladder and an auxiliary ladder, the main ladder is rotatably connected to the support assembly and the connecting rod mechanism respectively, and the auxiliary ladder is telescopically arranged relative to the main ladder.

[0021] According to the ladder mechanism provided by the utility model, the two sides of the main ladder are respectively provided with a sliding groove and a locking groove that are interconnected, the locking groove is located at one end of the sliding groove, and the auxiliary ladder is provided with a sliding member that slides with the sliding groove and the locking groove;

[0022] In the use state, the sliding member is located in the locking groove; in the storage state, the sliding member is located at the other end of the sliding groove away from the locking groove.

[0023] According to the ladder mechanism provided by the utility model, the main ladder is further provided with a transition groove, the transition groove is respectively connected with the sliding groove and the locking groove, and the transition groove is inclined from the sliding groove to the locking groove.

[0024] According to the ladder mechanism provided by the utility model, the main ladder is also provided with a positioning groove, and the auxiliary ladder is provided with a positioning member at one end away from the sliding member;

[0025] In the storage state, the positioning member is clamped in the positioning groove.

[0026] According to the ladder mechanism provided by the utility model, a fixing seat is further provided on the main ladder, and the connecting rod mechanism is rotatably connected to the fixing seat.

[0027] According to the ladder climbing mechanism provided by the utility model, the support assembly includes a first support member and a second support member that are rotatably connected;

[0028] One of the first support member and the second support member is fixed to the ladder assembly, and the other of the first support member and the second support member is suitable for being fixed to the lower side of the upper body of the working machine.

[0029] A second aspect of the present utility model provides a working machine, comprising any one of the ladder climbing mechanisms described above, wherein the ladder climbing mechanism is provided on the working machine;

[0030] When the ladder assembly of the ladder mechanism is in use, the ladder assembly is located at the side of the working machine. When the ladder assembly of the ladder mechanism is in a storage state, the ladder assembly is located below the upper body of the working machine.

[0031] The ladder mechanism provided by the utility model connects the ladder assembly to the lower part of the upper body of the working machine through the support assembly, and fixes one end of the connecting rod mechanism to the driving component, and connects the other end of the connecting rod mechanism to the ladder assembly, so that the driving component drives the ladder assembly to rotate around the supporting component to switch between the storage state and the use state. The ladder mechanism set in this way can be used as an independent device, which will not only not affect the overall structure and shape of the working machine, but also will not increase the size of the working machine, and does not need to be disassembled during transportation, which is more convenient to use.

[0032] When the working machine (such as a rotary drilling rig) is being transported or working, there is no need to use the ladder assembly mechanism. The driving component works to drive the connecting rod mechanism to move, and the connecting rod mechanism drives the ladder assembly to rotate so that the ladder assembly is stored under the upper body of the working machine. Since the ladder mechanism is installed on the working machine as an independent device, the installation of the ladder mechanism will not affect the original structure and shape of the working machine; and since the ladder mechanism is stored under the upper body of the working machine when not in use, it does not affect the size of the working machine, thereby facilitating the transportation of the working machine.

[0033] When an operating machine (such as a rotary drilling rig) needs to use a ladder assembly, the driving component works to drive the connecting rod mechanism to move, and the connecting rod mechanism drives the ladder assembly to rotate, so that the ladder assembly is unfolded and located on the side of the operating machine. At this time, the operator can get on and off the vehicle through the ladder assembly, which is more convenient to use.

[0034] The operating machine provided by the utility model comprises the above-mentioned ladder mechanism and thus has all the above-mentioned advantages of the ladder mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0036] Figure 1 It is a structural schematic diagram of the ladder mechanism provided by the utility model (the ladder assembly is in the storage state);

[0037] Figure 2 It is a side view of the ladder mechanism provided by the utility model (the ladder assembly is in the storage state);

[0038] Figure 3 It is a structural schematic diagram of the ladder mechanism provided by the utility model (the ladder assembly is in use);

[0039] Figure 4 It is a structural schematic diagram of a ladder assembly in a ladder mechanism provided by the utility model;

[0040] Figure 5 This is one of the schematic diagrams of the use state of the ladder mechanism provided by the utility model (the ladder assembly is located below the operating machine);

[0041] Figure 6 This is the second schematic diagram of the use state of the ladder mechanism provided by the utility model (the ladder assembly is located on the side of the operating machine).

[0042] Reference numerals:

[0043] 10. Ladder assembly; 11. Main ladder; 111. Sliding slot; 112. Locking slot; 113. Transition slot; 114. Positioning slot; 12. Secondary ladder; 121. Sliding member; 122. Positioning member; 123. Handle; 13. Fixed seat;

[0044] 20. Support assembly; 21. First support member; 22. Second support member;

[0045] 30. driving assembly; 31. driving component; 311. driving member; 312. supporting component; 3121. supporting body; 3122. bearing seat; 3123. guide groove; 313. transmission rack; 314. transmission gear; 315. transmission shaft; 32. connecting rod mechanism; 321. swing rod; 322. connecting rod;

[0046] 40. Operating machinery. DETAILED DESCRIPTION

[0047] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0048] In the description of the embodiments of the present application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" 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 ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0049] In the embodiments of the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0050] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0051] The rotary drilling rig generally adopts a hydraulic crawler telescopic chassis, a self-lifting and foldable drill mast, a telescopic drill rod, an automatic verticality detection and adjustment, a digital display of hole depth, etc. The whole machine is generally operated by hydraulic pilot control and load sensing, and has the characteristics of light and comfortable operation. Since the rotary drilling rig is relatively high, in order to facilitate getting on and off the rotary drilling rig, a ladder is set on the rotary drilling rig. In the prior art, the ladder of the rotary drilling rig is usually embedded in the side door or installed externally. When the ladder of the rotary drilling rig is embedded in the side door, the side door needs to be dug to leave space, which is easy to damage the side door structure and the shape of the whole vehicle; when the ladder of the rotary drilling rig is installed externally, the overall width of the rotary drilling rig will exceed the transportation width during transportation, and the ladder needs to be disassembled. When the rotary drilling rig is transported to the destination, the ladder needs to be reinstalled, which is troublesome to operate and inconvenient to use. To this end, the utility model provides a ladder mechanism, which is not only suitable for rotary drilling rigs, but also suitable for other working machines 40, such as excavators, bulldozers, scrapers, loaders, graders, cranes, etc.

[0052] Figure 1 It is a structural schematic diagram of the ladder mechanism provided by the utility model (the ladder assembly is in the storage state); Figure 2 It is a side view of the ladder mechanism provided by the utility model (the ladder assembly is in the storage state); Figure 3 It is a structural schematic diagram of the ladder mechanism provided by the utility model (the ladder assembly is in use).

[0053] See also Figures 1 to 3 An embodiment of the utility model provides a ladder mechanism, which includes a ladder assembly 10, a support assembly 20 and a drive assembly 30.

[0054] The support assembly 20 can be installed below the upper body of the working machine 40. Of course, it can also be installed in other parts of the working machine 40, mainly to meet the position of the ladder assembly 10. The utility model takes a rotary drilling rig as an example for explanation, because the space below the upper body of the rotary drilling rig is large, when the ladder assembly 10 is stored below the upper body of the rotary drilling rig, it will not affect the use of the rotary drilling rig. The support assembly 20 is rotatably connected to the ladder assembly 10, which is equivalent to the support assembly 20 serving as the rotation fulcrum of the ladder assembly 10, and the support assembly 20 is used to locate the position of the ladder assembly 10 after it is unfolded.

[0055] The driving component 30 includes a driving part 31 and a connecting rod mechanism 32, one end of the connecting rod mechanism 32 is fixedly connected to the driving part 31, and the other end of the connecting rod mechanism 32 is rotatably connected to the ladder assembly 10; the driving part 31 can drive the ladder assembly 10 to rotate around the support assembly 20 to switch between the storage state and the use state.

[0056] When the working machine 40 (such as a rotary drilling rig) is in the process of transportation or operation, the ladder assembly 10 mechanism is not needed, and the driving component 31 works to drive the connecting rod mechanism 32 to move, and the connecting rod mechanism 32 drives the ladder assembly 10 to rotate so that the ladder assembly 10 is stored under the upper body of the working machine 40. Since the ladder mechanism is installed on the working machine 40 as an independent device, the installation of the ladder mechanism will not affect the original structure and shape of the working machine 40; and since the ladder mechanism is stored under the upper body of the working machine 40 when not in use, it does not affect the size of the working machine 40, thereby facilitating the transportation of the working machine 40.

[0057] When the working machine 40 (such as a rotary drilling rig) needs to use the ladder assembly 10, the driving component 31 works to drive the connecting rod mechanism 32 to move, and the ladder assembly 10 is driven to rotate through the connecting rod mechanism 32, so that the ladder assembly 10 is unfolded and located on the side of the working machine 40. At this time, the operator can get on and off the vehicle through the ladder assembly 10, which is more convenient to use.

[0058] It can be understood that the ladder mechanism provided in the embodiment of the present application connects the ladder assembly 10 to the lower part of the upper body of the working machine 40 through the support assembly 20, and fixes one end of the connecting rod mechanism 32 to the driving component 31, and connects the other end of the connecting rod mechanism 32 to the ladder assembly 10, so that the driving component 31 drives the ladder assembly 10 to rotate around the supporting assembly 20 to switch between the storage state and the use state. The ladder mechanism set up in this way can be used as an independent device, which will not only not affect the overall structure and shape of the working machine 40, but also will not increase the size of the working machine 40, and does not need to be disassembled during transportation, which is more convenient to use.

[0059] Continue reading Figure 1and Figure 3 In some embodiments of the present application, the connecting rod mechanism 32 includes a rotatably connected rocker arm 321 and a connecting rod 322, wherein one end of the rocker arm 321 away from the connecting rod 322 is fixedly connected to the driving component 31, and one end of the connecting rod 322 away from the rocker arm 321 is rotatably connected to the ladder assembly 10.

[0060] Equivalently, one end of the swing rod 321 is fixedly connected to the driving component 31, and the other end of the swing rod 321 can be hinged to one end of the connecting rod 322 through a hinge to form a first hinge point A, and the end of the connecting rod 322 away from the swing rod 321 can be hinged to the ladder assembly 10 through a hinge to form a second hinge point B. The ladder assembly 10 and the support assembly 20 can be rotatably connected through a hinge to form a third hinge point C.

[0061] When the driving component 31 works (rotational motion), the driving swing rod 321 moves synchronously, and the swing rod 321 rotates around the fixed point connected to the driving component 31, thereby driving the connecting rod 322 to move synchronously through the first hinge point A to promote the movement of the ladder assembly 10. Since the ladder assembly 10 is rotatably connected to the support assembly 20, the ladder assembly 10 can rotate around the position where the support assembly 20 is located to move from the horizontal direction (as shown below) Figure 5 As shown, that is, when it is located at the bottom of the upper body of the working machine 40, it is approximately horizontal) and switched to a vertical direction (as shown below Figure 6 As shown, it is equivalent to being located on the side of the working machine 40) that is, the ladder assembly 10 is switched from the storage state to the use state for ready use.

[0062] When the ladder assembly 10 needs to be stored, the driving component 31 is controlled to rotate in the opposite direction to ensure that the ladder assembly 10 is converted from a vertical direction (equivalent to being located on the side of the working machine 40) to a horizontal direction (approximately a horizontal direction when located below the upper body of the working machine 40), which can facilitate the transportation of the working machine 40.

[0063] Among them, during the state switching process of the ladder assembly 10, the first hinge point A, the second hinge point B and the third hinge point C rotate in sequence. By setting a connecting rod mechanism 32 and cooperating with the driving component 31, the ladder assembly 10 can achieve state switching, so as to be adaptively adjusted according to the use requirements of the operating machinery 40, which is more convenient to use.

[0064] It should be noted that the connecting rod mechanism 32 is not limited to the above-mentioned limitation, as long as the movement of the driving component 31 can be realized, any structure that drives the ladder assembly 10 to switch between the storage state and the use state through the connecting rod mechanism 32 is acceptable, for example, a multi-link mechanism 32 can also be used.

[0065] In addition, in order to ensure the stability of the ladder when switching between the storage state and the use state, two connecting rod mechanisms 32 are symmetrically arranged on both sides of the driving component 31. In addition, a set of connecting rod mechanisms 32 can also be arranged at the output end of the driving component 31.

[0066] Continue reading Figure 2 and Figure 3 In some embodiments of the present application, the driving component 31 includes a driving member 311 and a transmission member. The driving member 311 can be a driving structure that can provide linear reciprocating motion, such as an electric cylinder, an oil cylinder, an air cylinder, or a linear motor. The transmission member is arranged at the output end of the driving member 311, and the connecting rod mechanism 32 is fixedly connected to the transmission member. The transmission member is used to transmit the power of the driving member 311 to the connecting rod mechanism 32, and the ladder assembly 10 is driven to switch the state through the connecting rod mechanism 32.

[0067] Furthermore, the transmission component includes a supporting component 312, a transmission rack 313 and a transmission gear 314, the transmission gear 314 is rotatably arranged on the supporting component 312, the transmission rack 313 and the transmission gear 314 are meshed, the transmission rack 313 is fixedly connected to the output end of the driving member 311, and the transmission gear 314 is connected to the connecting rod mechanism 32.

[0068] Equivalently, in this embodiment, there is no need to separately set up the transmission shaft 315, and a roller shaft for supporting the transmission gear 314 can be integrally set at the center position of the transmission gear 314, and the above-mentioned rocker arm 321 can be fixedly connected to the roller shaft. When the transmission rack 313 drives the transmission gear 314 to rotate, the roller shaft rotates synchronously to drive the rocker arm 321 to move, so that the ladder assembly 10 can switch between the storage state and the use state.

[0069] Continue reading Figure 3 In some embodiments of the present application, the transmission component further includes a transmission shaft 315, the transmission shaft 315 is mounted on the support component 312 through a bearing, the transmission gear 314 is fixedly connected to the transmission shaft 315 through a key or other connecting member, and the swing rod 321 is fixedly connected to the end of the transmission shaft 315. When the driving member 311 is working, it drives the transmission rack 313 to move, and the transmission rack 313 drives the transmission gear 314 to rotate, so that the transmission shaft 315 rotates synchronously to drive the swing rod 321 to move, so that the ladder assembly 10 switches between the storage state and the use state.

[0070] In this embodiment, the transmission gear 314 is provided with a transmission shaft 315, and the swing rod 321 can be directly fixed on the transmission shaft 315, so as to facilitate the installation of the swing rod 321. When the driving member 311 is working, it drives the transmission rack 313 to move, so that the transmission gear 314 meshing with the transmission rack 313 rotates, and then the transmission shaft 315 fixedly connected to the transmission gear 314 rotates, and the transmission shaft 315 drives the connecting rod mechanism 32 to operate, so that the ladder assembly 10 switches the state. Through this structural setting, the state switching process of the ladder assembly 10 can be made more stable.

[0071] The embodiment of the utility model adopts gear rack as the transmission component, which has accurate and stable transmission, small speed change, large torque transmission, high precision and high load bearing capacity. In addition, the transmission component can also adopt a speed reduction mechanism formed by a worm gear or a multi-stage gear.

[0072] Continue reading Figure 3 In some embodiments of the present application, the support component 312 includes a support body 3121 and a bearing seat 3122. The bearing seat 3122 is arranged on two opposite sides of the support body 3121. The transmission shaft 315 is installed on the bearing seat 3122 through a bearing. The two ends of the transmission shaft 315 respectively pass through the bearing seat 3122. The rocker arm 321 is fixedly connected to the two ends of the transmission shaft 315. In this way, the support component 312 can be supported by the connecting rod mechanism 32 on both sides of the support component 312, so that the ladder assembly 10 is more stable during the state switching process and the structure is more reliable.

[0073] Continue reading Figure 3 In some embodiments of the present application, in order to provide guidance for the linear motion of the transmission rack 313, a guide groove 3123 is opened on the support body 3121. The transmission rack 313 is inserted into the guide groove 3123 and can perform linear reciprocating motion along the extension direction of the guide groove 3123 (that is, the width direction), which can effectively prevent the transmission rack 313 from tilting due to its too long moving path, resulting in a jamming phenomenon.

[0074] Among them, the guide groove 3123 can be directly opened on the support body 3121, or a separate structure that can open the guide groove 3123 can be set, and an installation groove is set on the support body 3121, and the structure with the guide groove 3123 is embedded in the installation groove, so that the structure with the guide groove 3123 and the support body 3121 form a whole.

[0075] It should be noted that, in the case where the guide groove 3123 is not provided, the transmission rack 313 can abut against the upper surface of the support body 3121 , and the support body 3121 provides support and guidance for the transmission rack 313 .

[0076] Figure 4 It is a structural schematic diagram of a ladder assembly 10 in the ladder mechanism provided by the utility model.

[0077] Continue reading Figure 3 , and also see Figure 4 In some embodiments of the present application, the ladder assembly 10 includes a main ladder 11 and an auxiliary ladder 12, the support assembly 20 and the connecting rod mechanism 32 are both rotatably connected to the main ladder 11, and the auxiliary ladder 12 is telescopically arranged relative to the main ladder 11.

[0078] When the auxiliary ladder 12 is extended relative to the main ladder 11, it is equivalent to extending the length of the main ladder 11, which is convenient for the use of the ladder assembly 10. When the auxiliary ladder 12 is retracted relative to the main ladder 11, it is equivalent to shortening the length of the main ladder 11, that is, the auxiliary ladder 12 and the main ladder 11 are overlapped, which can reduce the storage space and facilitate the storage of the ladder assembly 10.

[0079] Furthermore, the two sides of the main ladder 11 are respectively provided with a sliding groove 111 and a locking groove 112 that are interconnected. The locking groove 112 is located at one end of the sliding groove 111, and the extension line of the center line of the locking groove 112 intersects with the extension line of the center line of the sliding groove 111, that is, the locking groove 112 extends with a bending tendency relative to the sliding groove 111. The auxiliary ladder 12 is provided with a sliding member 121 that slidably cooperates with the sliding groove 111 and the locking groove 112. The sliding member 121 can be a structure such as a protrusion or a pin. As long as the sliding member 121 can be inserted into the sliding groove 111 or the locking groove 112, and can move along the sliding groove 111 and be locked in the locking groove 112, any component is acceptable.

[0080] When the ladder assembly 10 is in use, the sliding member 121 is located in the locking groove 112 ; when the ladder assembly 10 is in the storage state, the sliding member 121 is located at one end of the sliding groove 111 away from the locking groove 112 .

[0081] In order to make the sliding member 121 slide more smoothly, a transition groove 113 is provided between the sliding groove 111 and the locking groove 112. The transition groove 113 is inclined from the sliding groove 111 to the locking groove 112, so as to facilitate the sliding member 121 to transition from the sliding groove 111 to the locking groove 112 and avoid the sliding member 121 from getting stuck during movement.

[0082] In addition, positioning grooves 114 are provided on both sides of the main ladder 11, and a positioning member 122 is provided at one end of the auxiliary ladder 12 away from the sliding member 121. When the ladder assembly 10 is in the storage state, the positioning member 122 is clamped in the positioning groove 114 to prevent the auxiliary ladder 12 from falling out of the main ladder 11.

[0083] Of course, a locking member may also be provided. When the auxiliary ladder 12 is extended relative to the main ladder 11, a locking member is used to lock the relative position of the auxiliary ladder 12 and the main ladder 11, ensuring that the relative position of the auxiliary ladder 12 and the main ladder 11 remains fixed, thereby improving the stability of the ladder assembly 10. When the auxiliary ladder 12 is retracted relative to the main ladder 11, another locking member is used to lock the position of the auxiliary ladder 12 and the main ladder 11, preventing the auxiliary ladder 12 from falling out of the main ladder 11.

[0084] It should also be noted that in addition to the telescopic installation method, the auxiliary ladder 12 and the main ladder 11 can also adopt a fixed installation method or an integrated structure. When the auxiliary ladder 12 and the main ladder 11 adopt an integrated structure, the ladder assembly 10 will not affect the size of the operating machine 40 when it is in the storage state.

[0085] Continue reading Figure 2 and Figure 3 In some embodiments of the present application, a fixing seat 13 is further provided on the main ladder 11, and the other end of the connecting rod 322 is rotatably connected to the fixing seat 13. The fixing seat 13 can be used as an independent component, and can be detachably connected to the frame of the main ladder 11 by fasteners such as bolts and screws, or fixed to the frame of the main ladder 11 by welding. In addition, the fixing seat 13 can also be integrally formed with the main ladder 11. The embodiment of the utility model facilitates the installation and disassembly of the connecting rod 322 by providing the fixing seat 13.

[0086] Continue reading Figures 1 to 3 In some embodiments of the present application, the support assembly 20 includes a first support member 21 and a second support member 22 that are rotatably connected; one of the first support member 21 and the second support member 22 is fixed to the ladder assembly 10, and the other of the first support member 21 and the second support member 22 is suitable for being fixed to the bottom of the upper body of the working machine 40.

[0087] For example, in the embodiment of the utility model, a first support member 21 is provided on the ladder assembly 10, and a second support member 22 is provided at the bottom position of the operating machine 40. The first support member 21 and the second support member 22 are hingedly provided so that the hinge point of the first support member 21 and the second support member 22 serves as the rotation fulcrum of the ladder assembly 10, that is, the rotation fulcrum determines that the position of the ladder assembly 10 can only rotate around it and will not deviate from the rotation fulcrum. Therefore, by adjusting the position of the rotation fulcrum, the position of the ladder assembly 10 can be adjusted, and the installation of the ladder assembly 10 can be adaptively adjusted according to usage requirements.

[0088] In addition, a handle 123 is provided on the auxiliary ladder 12 , so that the auxiliary ladder 12 can be moved conveniently by holding the handle 123 .

[0089] Figure 5This is one of the schematic diagrams of the use state of the ladder mechanism provided by the utility model (the ladder assembly 10 is located below the working machine 40); Figure 6 This is the second schematic diagram of the use state of the ladder mechanism provided by the utility model (the ladder assembly 10 is located on the side of the working machine 40).

[0090] See also Figure 5 and Figure 6 The ladder mechanism provided by the embodiment of the utility model is used in the process of use. A rotary drilling rig is used as an example for explanation. When it is necessary to work at the top of the rotary drilling rig, the driving member 311 is controlled to work (i.e., the electric cylinder is extended) to drive the transmission rack 313 to move. The movement of the transmission rack 313 drives the transmission gear 314 meshing with it to rotate. The transmission shaft 315 and the transmission gear 314 rotate synchronously at a certain angle, so that the swing rod 321 fixed on the transmission shaft 315 drives the connecting rod 322 to rotate synchronously. The ladder assembly 10 (the main ladder 11 and the auxiliary ladder 12) rotates 90 degrees under the drive of the connecting rod mechanism 32, and the ladder assembly 10 moves from a horizontal state to a vertical state. At this time, the ladder assembly 10 moves into place. The handle 123 on the auxiliary ladder 12 is held and pulled upward, and the sliding member 121 on the auxiliary ladder 12 moves upward along the sliding groove 111 on the main ladder 11. When it moves to the top of the sliding groove 111, the auxiliary ladder 12 is tilted and pulled to the top of the locking groove 112 along the transition groove 113. The sliding member 121 automatically falls into the locking groove 112 under the action of gravity and is locked. At this time, the relative position between the main ladder 11 and the auxiliary ladder 12 remains fixed, and the main ladder 11 and the auxiliary ladder 12 can be used normally for climbing operations.

[0091] When the ladder assembly 10 needs to be stored, the handle 123 on the auxiliary ladder 12 is held and pulled upward, so that the sliding member 121 on the auxiliary ladder 12 has a transition groove 113 that enters the sliding groove 111, and the auxiliary ladder 12 and the main ladder 11 are automatically folded under the action of gravity. At this time, the ladder assembly 10 is folded, and the driving member 311 is controlled to work (i.e., the electric cylinder is retracted) to make the ladder assembly 10 rotate 90 degrees in the opposite direction, and move from a vertical state to a horizontal state to be stored under the upper body of the rotary drilling rig.

[0092] The embodiment of the utility model further provides a working machine 40, comprising any one of the ladder climbing mechanisms, the ladder climbing mechanism being arranged on the working machine 40;

[0093] When the ladder assembly 10 of the ladder mechanism is in use, the ladder assembly 10 is located on the side of the working machine 40 . When the ladder assembly 10 of the ladder mechanism is in the storage state, the ladder assembly 10 is located below the upper body of the working machine 40 .

[0094] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A ladder climbing mechanism, characterized in that: include: Ladder assembly; A support assembly, suitable for being installed below the upper body of the working machine, wherein the support assembly is rotatably connected to the ladder assembly; The driving assembly includes a driving component and a connecting rod mechanism, one end of the connecting rod mechanism is connected to the driving component, and the other end of the connecting rod mechanism is rotatably connected to the ladder assembly; the driving component is suitable for driving the ladder assembly to rotate around the supporting assembly to switch between a use state and a storage state.

2. The ladder climbing mechanism according to claim 1, characterized in that: The connecting rod mechanism comprises a rotatably connected rocker arm and a connecting rod, one end of the rocker arm away from the connecting rod is fixedly connected to the driving component, and one end of the connecting rod away from the rocker arm is rotatably connected to the ladder assembly.

3. The ladder climbing mechanism according to claim 1, characterized in that: The driving component comprises a driving member and a transmission member, wherein the transmission member is arranged at the output end of the driving member, and the connecting rod mechanism is fixedly connected to the transmission member.

4. The ladder climbing mechanism according to claim 3, characterized in that: The transmission component includes a supporting component, a transmission rack and a transmission gear; The transmission gear is rotatably arranged on the supporting component, and the transmission rack is meshed with the transmission gear; The output end of the driving member is fixedly connected to the transmission rack, and the connecting rod mechanism is connected to the transmission gear.

5. The ladder climbing mechanism according to claim 4, characterized in that: The transmission component further includes a transmission shaft, and the transmission shaft is arranged on the supporting component; The transmission gear is arranged on the transmission shaft, and the connecting rod mechanism is fixedly connected to the end of the transmission shaft.

6. The ladder climbing mechanism according to claim 5, characterized in that: The support component comprises a support body and a bearing seat, wherein the bearing seat is arranged on two opposite sides of the support body; The transmission shaft is installed on the bearing seat through a bearing; The support body is provided with a guide groove, and the transmission rack is arranged in the guide groove and can perform linear reciprocating motion along the extending direction of the guide groove.

7. The ladder climbing mechanism according to any one of claims 1 to 6, characterized in that: The ladder assembly comprises a main ladder and an auxiliary ladder. The main ladder is rotatably connected to the support assembly and the connecting rod mechanism respectively, and the auxiliary ladder is telescopically arranged relative to the main ladder.

8. The ladder climbing mechanism according to claim 7, characterized in that: The two sides of the main ladder are respectively provided with a sliding groove and a locking groove which are interconnected, and the locking groove is located at one end of the sliding groove; the auxiliary ladder is provided with a sliding member which is slidably matched with the sliding groove and the locking groove; In the use state, the sliding member is located in the locking groove; in the storage state, the sliding member is located at the other end of the sliding groove away from the locking groove.

9. The ladder climbing mechanism according to claim 8, characterized in that: The main ladder is also provided with a transition groove, which is communicated with the sliding groove and the locking groove respectively, and the transition groove is inclined from the sliding groove to the locking groove.

10. The ladder climbing mechanism according to claim 9, characterized in that: The main ladder is also provided with a positioning groove, and the auxiliary ladder is provided with a positioning member at one end away from the sliding member; In the storage state, the positioning member is clamped in the positioning groove.

11. The ladder climbing mechanism according to claim 7, characterized in that: The main ladder is also provided with a fixing seat, and the connecting rod mechanism is rotatably connected to the fixing seat.

12. The ladder climbing mechanism according to any one of claims 1 to 6, characterized in that: The support assembly includes a first support member and a second support member rotatably connected; One of the first support member and the second support member is fixed to the ladder assembly, and the other of the first support member and the second support member is suitable for being fixed to the lower side of the upper body of the working machine.

13. A working machine, characterized in that: A ladder climbing mechanism comprising any one of claims 1 to 12 When the ladder assembly of the ladder mechanism is in use, the ladder assembly is located at the side of the working machine. When the ladder assembly of the ladder mechanism is in a storage state, the ladder assembly is located below the upper body of the working machine.

Images