Safety protection heavy load positioner

Abstract

According to the safety protection heavy-load positioner, through cooperative work of the overturning mechanism, the lifting mechanism and the rotating mechanism, the heavy-load positioner can adjust the electric wheel in all directions so as to meet different maintenance requirements, and the maintenance efficiency of the electric wheel is improved. The protection assemblies are additionally arranged in the overturning assembly, the lifting assembly and the rotating assembly, locking can be conducted immediately when the heavy-load positioner is abnormal, the heavy-load positioner is prevented from continuously running in the abnormal state, therefore, safety accidents are avoided, and the safety of personnel and equipment can be guaranteed. And the rotating center line of the overturning assembly is horizontally arranged, and the rotating center line of the rotating assembly is vertically arranged, so that the stability of the heavy-load positioner can be kept. The rotating assembly is used for bearing the electric wheel, the hydraulic clamping mechanism can lock the electric wheel to the rotating assembly, the electric wheel can be positioned, and it can be guaranteed that the electric wheel cannot loosen or slip off when the heavy-load positioner works.

Description

Technical Field

[0001] The present invention relates to the technical field of electric wheel maintenance for mining trucks, and in particular to a safety protection heavy-load positioner. Background Art

[0002] The electric wheels of mining trucks operate in harsh environments and high-load conditions for a long time. Key components such as bearings and gears will suffer from wear and damage due to long-term use. In order to ensure the safety and reliability of the electric wheels of mining trucks, they need to be regularly inspected and maintained.

[0003] At present, the maintenance of electric wheels is mostly carried out by manual work, and only a small part uses a flip platform for auxiliary maintenance. However, the existing electric wheel flip platform cannot achieve 360° rotation, so the maintenance workers need to rotate around the electric wheel, and sometimes even need to use a climbing platform for high-altitude work. In addition, there is no emergency braking device, and the maintenance efficiency and safety are low. Summary of the invention

[0004] The invention provides a safety protection heavy-load positioner to solve the problems of low maintenance efficiency and safety in the prior art.

[0005] In order to solve the above problems, the present invention provides a safety protection heavy-load positioner, including a flipping mechanism, a lifting mechanism and a slewing mechanism. The flipping mechanism includes a fixed bracket, a flipping assembly and a flipping protection assembly. The fixed bracket is fixed to the ground, the flipping assembly is rotatably arranged on the fixed bracket, and the rotation center line of the flipping assembly is horizontally arranged. The flipping protection assembly is installed on the fixed bracket and cooperates with the flipping assembly. When the flipping assembly is abnormal, the flipping protection assembly locks the flipping assembly; the lifting mechanism includes a connecting assembly, a lifting assembly and a lifting protection assembly. The connecting assembly is installed on the flipping assembly, and the lifting assembly is installed on the connecting assembly. The lifting assembly is used for lifting and lowering in a vertical direction. When the connecting assembly or the lifting assembly is abnormal, the lifting protection assembly locks the lifting assembly; the slewing mechanism includes a lifting bracket, a slewing assembly and a hydraulic clamping mechanism. The lifting bracket is installed on the lifting assembly, the slewing assembly is rotatably arranged on the lifting bracket, and the rotation center line of the slewing assembly is vertically arranged. The slewing assembly is used to carry an electric wheel. The hydraulic clamping mechanism is arranged on the slewing assembly. The hydraulic clamping mechanism is used to lock the electric wheel to the slewing assembly.

[0006] Furthermore, the flip assembly includes a flip bearing with external teeth, and the flip mechanism also includes a flip motor installed on a fixed bracket, and the output shaft of the flip motor is meshed with the external teeth of the flip bearing through a gear; the flip protection assembly is meshed with the external teeth of the flip bearing, and when the flip assembly is abnormal, the flip protection assembly locks the flip bearing.

[0007] Furthermore, the rollover protection assembly includes an anti-loosening gear mechanism, an anti-loosening servo motor and an electromagnetic brake. The anti-loosening gear mechanism and the external teeth of the rollover bearing are meshed. The anti-loosening servo motor is installed on a fixed bracket. The anti-loosening servo motor is connected to the anti-loosening gear mechanism through an electromagnetic brake. When the rollover bearing rotates normally, the anti-loosening gear mechanism is driven. When the rollover bearing rotates abnormally, the electromagnetic brake brakes the anti-loosening gear mechanism, and the anti-loosening gear mechanism brakes the rollover bearing.

[0008] Furthermore, the rollover protection component also includes an encoder. When the rotation speed of the rollover bearing or the anti-loosening gear mechanism detected by the encoder exceeds the set normal rotation speed range, the electromagnetic brake brakes the anti-loosening gear mechanism; the rollover protection component also includes a ratchet mechanism, and the ratchet mechanism and the anti-loosening gear mechanism cooperate so that the anti-loosening gear mechanism can only rotate in one direction.

[0009] Furthermore, the slewing mechanism also includes a plurality of tooling plates of different sizes, any one of which can be detachably mounted on the slewing assembly, and the tooling plates are used to connect with an electric wheel of matching size so as to mount the electric wheel on the slewing assembly; the hydraulic clamping mechanism is used to lock the tooling plates so as to lock the electric wheel to the slewing assembly.

[0010] Furthermore, the hydraulic clamping mechanism includes a locking hydraulic motor, a transmission assembly, a trapezoidal thread screw and a locking head. The locking hydraulic motor and the transmission assembly are installed on the rotating assembly, and the locking head is installed on one end of the trapezoidal thread screw. The locking hydraulic motor drives the trapezoidal thread screw to move through the transmission assembly, and the trapezoidal thread screw drives the locking head to move radially along the rotating assembly to tighten or avoid the tooling plate through the locking head.

[0011] Furthermore, there are multiple hydraulic clamping mechanisms, which are distributed along the circumference of the rotary assembly, and the hydraulic clamping mechanisms fix the tooling plate to the rotary assembly.

[0012] Furthermore, the connecting assembly includes a mating nut, in which a ball is arranged, the lifting assembly includes a lifting frame, a lifting screw and a lifting motor, both of which are installed on the lifting frame, the lifting screw and the mating nut cooperate, the lifting motor drives the lifting screw to rotate, and the lifting screw drives the lifting frame to rise and fall while rotating, and the rotating mechanism rises and falls with the lifting frame; wherein, when the mating nut or the lifting screw is abnormal, the lifting protection assembly locks the lifting screw.

[0013] Furthermore, the connecting assembly also includes a nut mounting bracket installed on the flip assembly, the mating nut is installed on the nut mounting bracket, the connecting assembly also includes a nut anti-fall mounting plate and a driven nut, the nut anti-fall mounting plate is installed on the mounting bracket, the driven nut is installed on the nut anti-fall mounting plate and cooperates with the lifting screw; wherein, when the mating nut is operating normally, the mating nut bears the load of the lifting screw, and the driven nut does not bear the load, when the mating nut fails, the driven nut bears the load, and the driven nut and the mating nut form a reverse backlash combination to prevent the lifting screw from rotating.

[0014] Furthermore, there are two flipping mechanisms, the two flipping components of the two flipping mechanisms are located between two fixed brackets, and the two flipping components are coaxially arranged; there are two lifting mechanisms, the two connecting components of the two lifting mechanisms are respectively connected to a flipping component, and the lifting brackets are connected to both lifting components.

[0015] By applying the technical solution of the present invention, a safety protection heavy-load positioner is provided, including a flipping mechanism, a lifting mechanism and a slewing mechanism. The flipping mechanism includes a fixed bracket, a flipping assembly and a flipping protection assembly. The fixed bracket is fixed to the ground. The flipping assembly is rotatably arranged on the fixed bracket. The rotation center line of the flipping assembly is horizontally arranged. The flipping protection assembly is installed on the fixed bracket and cooperates with the flipping assembly. When the flipping assembly is abnormal, the flipping protection assembly locks the flipping assembly; the lifting mechanism includes a connecting assembly, a lifting assembly and a lifting protection assembly. The connecting assembly is installed on the flipping assembly. The lifting assembly is installed on the connecting assembly. The lifting assembly is used for lifting and lowering in a vertical direction. When the connecting assembly or the lifting assembly is abnormal, the lifting protection assembly locks the lifting assembly; the slewing mechanism includes a lifting bracket, a slewing assembly and a hydraulic clamping mechanism. The lifting bracket is installed on the lifting assembly. The slewing assembly is rotatably arranged on the lifting bracket. The rotation center line of the slewing assembly is vertically arranged. The slewing assembly is used to carry an electric wheel. The hydraulic clamping mechanism is arranged on the slewing assembly. The hydraulic clamping mechanism is used to lock the electric wheel to the slewing assembly.

[0016] In this scheme, through the coordinated work of the flipping mechanism, the lifting mechanism and the slewing mechanism, the heavy-duty positioner can achieve all-round adjustment of the electric wheel to adapt to different maintenance needs, thereby improving the efficiency of the electric wheel maintenance. Protective components are added to the flipping assembly, the lifting assembly and the slewing assembly, which can be locked immediately when an abnormality occurs in the heavy-duty positioner to prevent the heavy-duty positioner from continuing to operate in an abnormal state, thereby avoiding the occurrence of safety accidents and ensuring the safety of personnel and equipment. The horizontal setting of the rotation centerline of the flipping assembly and the vertical setting of the rotation centerline of the slewing assembly help maintain the stability of the heavy-duty positioner, especially when carrying heavy loads. In addition, the slewing assembly is used to carry the electric wheel, and the hydraulic clamping mechanism can lock the electric wheel to the slewing assembly, which can play a role in positioning the electric wheel and ensure that the electric wheel of the heavy-duty positioner will not loosen or slip during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic structural diagram of a safety protection heavy-load positioner provided by an embodiment of the present invention is shown;

[0019] Figure 2 A schematic structural diagram of a flip assembly and a flip protection assembly of a safety protection heavy-load positioner provided by an embodiment of the present invention is shown;

[0020] Figure 3 A schematic diagram showing the structure of an electromagnetic brake of a safety protection heavy-load positioner provided by an embodiment of the present invention is shown;

[0021] Figure 4 A schematic diagram showing the structure of a rotary assembly and a hydraulic clamping mechanism of a safety protection heavy-load positioner provided by an embodiment of the present invention is shown;

[0022] Figure 5 A schematic structural diagram of a lifting mechanism of a safety protection heavy-load positioner provided by an embodiment of the present invention is shown;

[0023] Figure 6 A structural schematic diagram of a lifting protection assembly of a lifting mechanism provided in an embodiment of the present invention is shown.

[0024] The above drawings include the following reference numerals:

[0025] 110. Flipping mechanism; 111. Fixed bracket;

[0026] 112. Flip assembly; 113. Flip motor;

[0027] 114. Fixed slide; 115. Overturn protection assembly;

[0028] 1151, anti-loosening gear mechanism;

[0029] 1152, anti-loosening servo motor;

[0030] 1153. Electromagnetic brake; 1154. Ratchet mechanism;

[0031] 116. Flip bearing; 117. Flip gear mechanism;

[0032] 120. Lifting mechanism; 121. Connecting assembly;

[0033] 1211, mating nut; 1212, driven nut;

[0034] 1213, nut mounting bracket;

[0035] 1214, nut anti-fall mounting plate;

[0036] 122. lifting assembly; 123. lifting frame;

[0037] 124. Lifting screw rod; 125. Lifting motor;

[0038] 126. Lifting guide rail; 127. Lifting protection assembly;

[0039] 130. Rotating mechanism; 131. Lifting bracket;

[0040] 132. Rotation assembly; 133. Locking structure;

[0041] 134. Flip swing arm; 135. Rotary motor;

[0042] 136. Hydraulic clamping mechanism;

[0043] 1361, locking hydraulic motor;

[0044] 1362, transmission assembly; 1363, locking head;

[0045] 140. Tooling board. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0047] like Figures 1 to 6As shown, an embodiment of the present invention provides a safety protection heavy-load positioner, including a flip mechanism 110, a lifting mechanism 120 and a slewing mechanism 130, the flip mechanism 110 includes a fixed bracket 111, a flip assembly 112 and a flip protection assembly 115, the fixed bracket 111 is fixed to the ground, the flip assembly 112 is rotatably arranged on the fixed bracket 111, the rotation center line of the flip assembly 112 is horizontally arranged, the flip protection assembly 115 is installed on the fixed bracket 111 and cooperates with the flip assembly 112, when the flip assembly 112 is abnormal, the flip protection assembly 115 locks the flip assembly 112; the lifting mechanism 120 includes a connecting assembly 121, a lifting assembly 122 and a lifting protection assembly 127, the connecting assembly 111 21 is installed on the flip assembly 112, the lifting assembly 122 is installed on the connecting assembly 121, the lifting assembly 122 is used for lifting and lowering in the vertical direction, when the connecting assembly 121 or the lifting assembly 122 is abnormal, the lifting protection assembly 127 locks the lifting assembly 122; the rotating mechanism 130 includes a lifting bracket 131, a rotating assembly 132 and a hydraulic clamping mechanism 136, the lifting bracket 131 is installed on the lifting assembly 122, the rotating assembly 132 is rotatably arranged on the lifting bracket 131, the rotation center line of the rotating assembly 132 is vertically arranged, the rotating assembly 132 is used for carrying the electric wheel, the hydraulic clamping mechanism 136 is arranged on the rotating assembly 132, and the hydraulic clamping mechanism 136 is used to lock the electric wheel to the rotating assembly 132.

[0048] In this embodiment, through the coordinated work of the flip mechanism 110, the lifting mechanism 120 and the slewing mechanism 130, the heavy-duty positioner can achieve all-round adjustment of the electric wheel to adapt to different maintenance requirements, thereby improving the efficiency of the electric wheel maintenance. A protective component is added to the flip assembly 112, the lifting assembly 122 and the slewing assembly 132, which can be locked immediately when an abnormality occurs in the heavy-duty positioner to prevent the heavy-duty positioner from continuing to operate in an abnormal state, thereby avoiding the occurrence of safety accidents and ensuring the safety of personnel and equipment. The horizontal setting of the rotation centerline of the flip assembly 112 and the vertical setting of the rotation centerline of the slewing assembly 132 help to maintain the stability of the heavy-duty positioner, especially when carrying heavy loads. In addition, the slewing assembly 132 is used to carry the electric wheel, and the hydraulic clamping mechanism 136 can lock the electric wheel to the slewing assembly 132, which can play a role in positioning the electric wheel and ensure that the heavy-duty positioner will not loosen or slip during operation.

[0049] Furthermore, the flip assembly 112 includes a flip bearing 116 with external teeth, and the flip mechanism 110 also includes a flip motor 113 installed on the fixed bracket 111, and the output shaft of the flip motor 113 is meshed with the external teeth of the flip bearing 116 through gears; the flip protection assembly 115 is meshed with the external teeth of the flip bearing 116, and when the flip assembly 112 is abnormal, the flip protection assembly 115 locks the flip bearing 116.

[0050] In this embodiment, the flip motor 113 meshes with the outer teeth of the flip bearing 116 through the flip gear mechanism 117, which can provide a funny power transmission. The flip motor 113 can accurately control the speed and flip position to ensure the accuracy of the flip operation and improve the maintenance efficiency. The existence of the flip protection component 115 can lock the flip bearing 116 when the flip component 112 is abnormal, preventing further damage and ensuring the safety of personnel and the heavy-load positioner.

[0051] like Figure 2 As shown, the flip protection assembly 115 includes an anti-loosening gear mechanism 1151, an anti-loosening servo motor 1152 and an electromagnetic brake 1153. The anti-loosening gear mechanism 1151 is meshed with the external teeth of the flip bearing 116. The anti-loosening servo motor 1152 is installed on the fixed bracket 111. The anti-loosening servo motor 1152 is connected to the anti-loosening gear mechanism 1151 through the electromagnetic brake 1153. When the flip bearing 116 rotates normally, the anti-loosening gear mechanism 1151 is driven. When the flip bearing 116 rotates abnormally, the electromagnetic brake 1153 brakes the anti-loosening gear mechanism 1151, and the anti-loosening gear mechanism 1151 brakes the flip bearing 116.

[0052] In this embodiment, during normal operation, the anti-loosening gear mechanism 1151 acts as a driven member to ensure that the flip bearing 116 can operate normally. In abnormal situations, the anti-loosening gear mechanism 1151 is braked by the electromagnetic brake 1153, and the movement of the flip bearing 116 can be quickly stopped when the flip bearing 116 rotates abnormally, preventing further damage and potential safety accidents. In addition, the anti-loosening servo motor 1152, the electromagnetic brake 1153 and the anti-loosening gear mechanism 1151 are integrated into one component, which reduces the space occupied and improves the integration of the heavy-load positioner.

[0053] Among them, the flip protection component 115 also includes an encoder. When the rotation speed of the flip bearing 116 or the anti-loosening gear mechanism 1151 detected by the encoder exceeds the set normal rotation speed range, the electromagnetic brake 1153 brakes the anti-loosening gear mechanism 1151; the flip protection component 115 also includes a ratchet mechanism 1154, and the ratchet mechanism 1154 cooperates with the anti-loosening gear mechanism 1151 so that the anti-loosening gear mechanism 1151 can only rotate in one direction.

[0054] In this embodiment, the encoder can monitor the rotation speed of the flip bearing 116 or the anti-loosening gear mechanism 1151 in real time to ensure that it runs within the set normal speed range. When the speed exceeds this range, the encoder will trigger the electromagnetic brake 1153, thereby stopping or adjusting the speed in time to avoid damage caused by overspeeding or too slow speed. In addition, the ratchet mechanism 1154 cooperates with the anti-loosening gear mechanism 1151 to prevent the gear from reversing when subjected to a reverse force, ensuring that the gear can only rotate in one direction. By limiting the rotation direction of the gear, the ratchet mechanism can reduce gear wear and damage caused by incorrect operation or unexpected reverse force, thereby extending the service life of the equipment.

[0055] like Figure 4 As shown, the slewing mechanism 130 also includes a plurality of tooling plates 140 of different sizes. Any one of the tooling plates 140 can be detachably mounted on the slewing assembly 132. The tooling plate 140 is used to connect with an electric wheel of matching size to mount the electric wheel on the slewing assembly 132. The hydraulic clamping mechanism 136 is used to lock the tooling plate 140 to lock the electric wheel to the slewing assembly 132.

[0056] In this embodiment, tooling plates 140 of different sizes enable the slewing mechanism 130 to adapt to electric wheels of different sizes. The detachable design of the tooling plate 140 can be quickly replaced to adapt to different types of electric wheels, which reduces the downtime of the heavy-duty positioner and improves production efficiency. There is also a circumferentially distributed locking structure 133 on the slewing assembly to ensure the stability and safety of the tooling plate 140 on the slewing assembly 132 to prevent slipping or falling off during operation. In addition, the hydraulic clamping mechanism 136 provides a strong locking force, which can lock the electric wheel to the slewing assembly 132 to ensure that the electric wheel will not loosen when the slewing motor 135 runs at high speed or is subjected to vibration and impact, thereby enhancing the safety and stability of the heavy-duty positioner. The risk of damage to the workpiece is reduced.

[0057] like Figure 4 As shown, the hydraulic clamping mechanism 136 includes a locking hydraulic motor 1361, a transmission assembly 1362, a trapezoidal thread lead screw and a locking head 1363. The locking hydraulic motor 1361 and the transmission assembly 1362 are installed on the rotating assembly 132, and the locking head 1363 is installed on one end of the trapezoidal thread lead screw. The locking hydraulic motor 1361 drives the trapezoidal thread lead screw to move through the transmission assembly 1362, and the trapezoidal thread lead screw drives the locking head 1363 to move radially along the rotating assembly 132 to press or avoid the tooling plate 140 through the locking head 1363.

[0058] In this embodiment, by controlling the locking hydraulic motor 1361, the movement of the trapezoidal threaded screw can be precisely controlled, and the position of the locking head 1363 can be precisely controlled to ensure that the tooling plate 140 can be accurately pressed or avoided. In addition, the hydraulic system can provide a strong locking force to ensure that the tooling plate 140 and the electric wheel can be firmly fixed under various working conditions to prevent loosening under high speed or high load conditions, thereby reducing the labor intensity of workers and improving the convenience of operation.

[0059] Furthermore, there are multiple hydraulic clamping mechanisms 136 , which are distributed along the circumference of the rotary assembly 132 , and the hydraulic clamping mechanisms 136 fix the tooling plate 140 to the rotary assembly 132 .

[0060] In this embodiment, multiple hydraulic clamping mechanisms 136 are distributed along the circumference of the rotary assembly 132 to evenly apply pressure to the tooling plate 140, which helps to avoid deformation or damage to the tooling plate 140 caused by uneven pressure distribution. Multiple hydraulic clamping mechanisms 136 work together to provide a greater total locking force to ensure that the tooling plate 140 will not loosen under extreme working conditions. In addition, the design of multiple hydraulic clamping mechanisms 136 reduces the safety risk caused by the failure of a single mechanism.

[0061] like Figure 5 As shown, the connecting component 121 includes a mating nut 1211, in which a ball is arranged, and the lifting component 122 includes a lifting frame 123, a lifting screw rod 124 and a lifting motor 125. The lifting screw rod 124 and the lifting motor 125 are both installed on the lifting frame 123. The lifting screw rod 124 and the mating nut 1211 cooperate, and the lifting motor 125 drives the lifting screw rod 124 to rotate. The lifting screw rod 124 drives the lifting frame 123 to rise and fall when rotating, and the rotating mechanism 130 rises and falls with the lifting frame 123; wherein, when the mating nut 1211 or the lifting screw rod 124 is abnormal, the lifting protection component 127 locks the lifting screw rod 124.

[0062] In this embodiment, the lifting motor 125 drives the lifting screw 124 to rotate, so that the lifting frame 123 moves in the lifting guide rail 126, reducing the deformation or offset caused by the large gravity of the electric wheel, ensuring the accuracy during the lifting process. In addition, through the fixed slide 114 on the lifting guide rail 126, the lifting and lowering of the rotary mechanism 130 can be smooth, reducing unnecessary vibrations, and avoiding wear and safety hazards caused by it. The ball bearings set in the mating nut 1211 can reduce the friction and wear of the lifting screw 124 during the lifting process and increase the life of the lifting screw 124. The lifting protection component 127 can lock the lifting screw 124 when the mating nut 1211 or the lifting screw 124 is abnormal, preventing further damage and potential safety accidents.

[0063] Preferably, the slewing mechanism 130 is also provided with a flip swing arm 134, by which the angle of the lifting frame 123 relative to the lifting bracket 131 can be adjusted, thereby increasing the flexibility and adaptability of the operation. Moreover, the flip swing arm 134 can also increase the stability of the entire structure, especially during the flipping operation, and can provide better support and balance.

[0064] like Figure 6 As shown, the connecting component 121 also includes a nut mounting bracket 1213 installed on the flip component 112, and the matching nut 1211 is installed on the nut mounting bracket 1213. The connecting component 121 also includes a nut anti-falling mounting plate 1214 and a driven nut 1212. The nut anti-falling mounting plate 1214 is installed on the mounting bracket, and the driven nut 1212 is installed on the nut anti-falling mounting plate 1214 and cooperates with the lifting screw 124; wherein, when the matching nut 1211 operates normally, the matching nut 1211 bears the load of the lifting screw 124, and the driven nut 1212 does not bear the load. When the matching nut 1211 fails, the driven nut 1212 bears the load, and the driven nut 1212 and the matching nut 1211 form a reverse backlash combination to prevent the lifting screw 124 from rotating.

[0065] In this embodiment, the mating nut 1211 and the driven nut 1212 are meshed through the spiral roller of the lifting screw 124, the nut mounting bracket 1213 is connected to the mating nut 1211 by screws, the nut anti-fall mounting plate 1214 and the nut mounting bracket 1213 are fixed by axle pins and screws, and the nut anti-fall mounting plate 1214 is connected to the driven nut 1212. The design of the nut anti-fall mounting plate 1214 and the driven nut 1212 can prevent the accidental fall of the lifting screw 124 and the connecting assembly caused by the failure of the mating nut 1211, thereby protecting the safety of operators and equipment. When the mating nut 1211 is operating normally, the driven nut 1212 does not participate in the load, which can reduce unnecessary wear and maintenance requirements. When the mating nut 1211 fails, the mating nut 1211 and the driven nut 1212 form a reverse backlash combination, which can prevent the rotation of the lifting screw 124 and prevent further damage and potential safety accidents.

[0066] Furthermore, there are two flipping mechanisms 110, and the two flipping components 112 of the two flipping mechanisms 110 are located between the two fixed brackets 111, and the two flipping components 112 are coaxially arranged; there are two lifting mechanisms 120, and the two connecting components 121 of the two lifting mechanisms 120 are respectively connected to one flipping component 112, and the lifting bracket 131 is connected to both lifting components 122.

[0067] In this embodiment, two flipping mechanisms 110 and two flipping assemblies 112 of the two flipping mechanisms 110 are coaxially arranged to ensure the balance of forces during the flipping process, reduce the eccentric moment, thereby increasing the stability of the three-axis heavy-duty positioner, and can also reduce the stress bearing strength on each flipping mechanism 110, thereby extending the service life of the flipping mechanism 110. The coaxial arrangement of the flipping assembly 112 can also more accurately control the flipping action. Moreover, by having two lifting mechanisms 120 work at the same time, the stability of the three-axis heavy-duty positioner can be improved, especially when the gravity is large, the two lifting mechanisms 120 share the gravity, which can distribute the force more evenly during the lifting process, reduce the stress of a single component, and extend the service life of the lifting mechanism 120.

[0068] Preferably, two flipping mechanisms 110 and two lifting mechanisms 120 are provided to play a safeguard role. If a flipping mechanism 110 or a lifting mechanism 120 fails during operation, the other flipping mechanism 110 or the lifting mechanism 120 can work independently, and the maintenance work will not be stopped due to the failure of a flipping component 112 or a lifting component 122, and safety accidents during the operation can also be prevented.

[0069] The present application provides a safety protection heavy-load positioner, which effectively improves the safety and stability of the equipment by setting protection components in the flipping mechanism, lifting mechanism and rotating mechanism and adopting a precise control mechanism. It is suitable for various electric wheel maintenance occasions and can not only protect the safety of the equipment and operators, but also improve processing efficiency.

[0070] The above is only an optional embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may be modified and varied in various ways. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0071] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0072] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of this solution. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, so that once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0073] In the description of this scheme, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing this scheme and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they cannot be understood as limiting the scope of protection of this scheme; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0074] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0075] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this scheme.

Claims

1. A safety protection heavy load positioner, characterized in that: The invention comprises a flipping mechanism (110), a lifting mechanism (120) and a slewing mechanism (130), wherein the flipping mechanism (110) comprises a fixed bracket (111), a flipping assembly (112) and a flipping protection assembly (115), wherein the fixed bracket (111) is fixed to the ground, the flipping assembly (112) is rotatably arranged on the fixed bracket (111), the rotation center line of the flipping assembly (112) is arranged horizontally, the flipping protection assembly (115) is installed on the fixed bracket (111) and cooperates with the flipping assembly (112), and when the flipping assembly (112) is abnormal, the flipping protection assembly (115) locks the flipping assembly (112); the lifting mechanism (120) comprises a connecting assembly (121), a lifting assembly (122) and a lifting protection assembly (127), wherein the connecting assembly (121) is installed on the flipping assembly (112), and the flipping protection assembly (115) is arranged horizontally. The lifting component (122) is installed on the connecting component (121), and the lifting component (122) is used for lifting and lowering in a vertical direction. When the connecting component (121) or the lifting component (122) is abnormal, the lifting protection component (127) locks the lifting component (122); the rotating mechanism (130) comprises a lifting bracket (131), a rotating component (132) and a hydraulic clamping mechanism (136). The lifting bracket (131) is installed on the lifting component (122), and the rotating component (132) is rotatably arranged on the lifting bracket (131). The rotation center line of the rotating component (132) is arranged vertically. The rotating component (132) is used for carrying an electric wheel. The hydraulic clamping mechanism (136) is arranged on the rotating component (132), and the hydraulic clamping mechanism (136) is used to lock the electric wheel to the rotating component (132).

2. The safety protection heavy-load positioner according to claim 1 is characterized in that: The flip assembly (112) includes a flip bearing (116) having external teeth. The flip mechanism (110) also includes a flip motor (113) mounted on the fixed bracket (111). The output shaft of the flip motor (113) meshes with the external teeth of the flip bearing (116) through a gear. The flip protection assembly (115) meshes with the external teeth of the flip bearing (116). When the flip assembly (112) is abnormal, the flip protection assembly (115) locks the flip bearing (116).

3. The safety protection heavy load positioner according to claim 2 is characterized in that: The rollover protection assembly (115) comprises an anti-loosening gear mechanism (1151), an anti-loosening servo motor (1152) and an electromagnetic brake (1153); the anti-loosening gear mechanism (1151) is meshed with the external teeth of the rollover bearing (116); the anti-loosening servo motor (1152) is installed on the fixed bracket (111); the anti-loosening servo motor (1152) is connected to the anti-loosening gear mechanism (1151) via the electromagnetic brake (1153); wherein, when the rollover bearing (116) rotates normally, the anti-loosening gear mechanism (1151) is driven; when the rollover bearing (116) rotates abnormally, the electromagnetic brake (1153) brakes the anti-loosening gear mechanism (1151); and the anti-loosening gear mechanism (1151) brakes the rollover bearing (116).

4. The safety protection heavy-load positioner according to claim 3 is characterized in that: The rollover protection component (115) further comprises an encoder, and when the rotation speed of the rollover bearing (116) or the anti-loosening gear mechanism (1151) detected by the encoder exceeds a set normal rotation speed range, the electromagnetic brake (1153) brakes the anti-loosening gear mechanism (1151); the rollover protection component (115) further comprises a ratchet mechanism (1154), and the ratchet mechanism (1154) cooperates with the anti-loosening gear mechanism (1151) so that the anti-loosening gear mechanism (1151) can only rotate in one direction.

5. The safety protection heavy load positioner according to claim 1 is characterized in that: The slewing mechanism (130) further comprises a plurality of tooling plates (140) of different sizes, any one of the tooling plates (140) being detachably mounted on the slewing assembly (132), the tooling plate (140) being used to connect with an electric wheel of matching size so as to mount the electric wheel on the slewing assembly (132); the hydraulic clamping mechanism (136) being used to lock the tooling plate (140) so as to lock the electric wheel on the slewing assembly (132).

6. The safety protection heavy load positioner according to claim 5 is characterized in that: The hydraulic clamping mechanism (136) comprises a locking hydraulic motor (1361), a transmission assembly (1362), a trapezoidal threaded screw and a locking head (1363); the locking hydraulic motor (1361) and the transmission assembly (1362) are mounted on the rotary assembly (132); the locking head (1363) is mounted on one end of the trapezoidal threaded screw; the locking hydraulic motor (1361) drives the trapezoidal threaded screw to move via the transmission assembly (1362); the trapezoidal threaded screw drives the locking head (1363) to move radially along the rotary assembly (132) so as to press or avoid the tooling plate (140) via the locking head (1363).

7. The safety protection heavy load positioner according to claim 5, characterized in that: There are a plurality of hydraulic clamping mechanisms (136), and the plurality of hydraulic clamping mechanisms (136) are distributed along the circumference of the rotary assembly (132). The hydraulic clamping mechanisms (136) fix the tooling plate (140) to the rotary assembly (132).

8. The safety protection heavy load positioner according to claim 1 is characterized in that: The connecting component (121) comprises a matching nut (1211), wherein a ball is arranged inside the matching nut (1211); the lifting component (122) comprises a lifting frame (123), a lifting screw rod (124) and a lifting motor (125); the lifting screw rod (124) and the lifting motor (125) are both installed on the lifting frame (123); the lifting screw rod (124) and the matching nut (1211) cooperate; the lifting motor (125) drives the lifting screw rod (124) to rotate; the lifting screw rod (124) drives the lifting frame (123) to rise and fall while rotating; and the rotary mechanism (130) rises and falls along with the lifting frame (123); wherein, when the matching nut (1211) or the lifting screw rod (124) is abnormal, the lifting protection component (127) locks the lifting screw rod (124).

9. The safety protection heavy-load positioner according to claim 8, characterized in that: The connecting assembly (121) further comprises a nut mounting bracket (1213) mounted on the flip assembly (112), the matching nut (1211) being mounted on the nut mounting bracket (1213), the connecting assembly (121) further comprises a nut anti-falling mounting plate (1214) and a driven nut (1212), the nut anti-falling mounting plate (1214) being mounted on the mounting bracket, the driven nut (1212) being mounted on the nut anti-falling mounting plate (1214) and and cooperates with the lifting screw (124); wherein, when the mating nut (1211) operates normally, the mating nut (1211) bears the load of the lifting screw (124), and the driven nut (1212) does not bear the load; when the mating nut (1211) fails, the driven nut (1212) bears the load, and the driven nut (1212) and the mating nut (1211) form a reverse backlash combination to prevent the lifting screw (124) from rotating.

10. The safety protection heavy load positioner according to claim 1, characterized in that: There are two flipping mechanisms (110), the two flipping components (112) of the two flipping mechanisms (110) are located between the two fixed brackets (111), and the two flipping components (112) are coaxially arranged; there are two lifting mechanisms (120), the two connecting components (121) of the two lifting mechanisms (120) are respectively connected to one flipping component (112), and the lifting bracket (131) is connected to both of the two lifting components (122).

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