Pneumatic control sliding platform and pneumatic control sliding platform system
Through pneumatically controlled sliding platform and tentacle limiting mechanism, the inconvenience and safety risks of manpower pushing in the wind turbine blade painting operation are solved, and efficient and uniform painting effect is achieved, which is suitable for large blade painting operation.
Patent Information
- Application Number
- CN202310681046.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-06-08
- Publication Date
- 2024-12-10
AI Technical Summary
The prior art in the wind turbine blade painting operation requires manpower to push the scaffolding, which leads to inconvenient operation, high cost, high safety risks, and uneven painting, affecting quality.
A pneumatically controlled sliding platform is designed, combining pneumatic push rods and motors to realize the free movement of the frame platform in the longitudinal, transverse and vertical directions, and avoid collision with the blades through the tentacle limiting mechanism to ensure uniformity of the painting.
It realizes flexible operation without manpower, reduces safety risks, improves paint quality, can adapt to large blade spraying operations, and saves space.
Smart Images
Figure CN119100311A_ABST
Abstract
Description
Technical Field The present invention relates to a pneumatically controlled sliding platform and a pneumatically controlled sliding platform system, which are used for performing manual operations, especially painting operations, on target products, especially blades of wind turbines. Background Art In recent years, the size of mass-produced wind turbine blades has become larger and larger, and the corresponding blade height has also increased. Without the help of tools, platforms, etc., operators have completely failed to carry out painting operations. In the prior art, it is common practice to make a scaffolding with casters on site to raise the operating height of the operator, wherein the movement of the scaffolding in the longitudinal direction of the blade is achieved by manual pushing. However, this solution in the prior art requires the use of manual pushing of the scaffolding, which not only consumes manpower costs, but also may cause the risk of the operator on the scaffolding falling due to the inconsistency in the movements of the spraying operator and the scaffolding pusher. In addition, by manually pushing the scaffolding, the relative position of the spray gun and the blade surface cannot be well controlled, which may cause the scaffolding to collide with the blade, and the scaffolding cannot move in the vertical direction, which will cause uneven painting during the spraying operation, thereby affecting the quality of the painting. Summary of the invention In view of this, the object of the present invention is to provide a pneumatically controlled sliding platform for performing manual operations on a target product and a pneumatically controlled sliding platform system for performing manual operations on a target product. With the help of the pneumatically controlled sliding platform and the pneumatically controlled sliding platform system, not only can the manual operation be made more flexible, but also the frame platform can be prevented from colliding with the blades without the use of sensors. According to the first aspect of the present invention, the above-mentioned purpose is solved by a pneumatically controlled sliding platform for performing manual operations on a target product, the pneumatically controlled sliding platform comprising: a frame, which is movably arranged on a track in the longitudinal direction of the target product, and the track is arranged on the wall of the manual operation space; a frame platform, which is movably arranged on the frame in the vertical direction; a longitudinal motor, which is arranged on the frame and is constructed to drive the frame to move in the longitudinal direction of the target product; a vertical motor, which is arranged on the frame and is constructed to drive the frame platform to move in the vertical direction; a transverse motor, which is arranged on the frame platform and is constructed to drive the frame platform to move in the transverse direction of the target product; and at least one tentacle limiting mechanism, which is arranged on the frame platform so that the end of the tentacle limiting mechanism facing the target product protrudes from the frame platform. The target product according to the present invention is preferably a relatively large product such as a blade of a wind turbine. The manual work performed on the target product is preferably a spraying operation, especially a painting operation, performed on the blade of a wind turbine. Particularly preferably, the manual work performed on the target product may also be a cleaning operation performed on the blade of a wind turbine. Within the scope of the present invention, the "vertical direction" may be understood as a direction perpendicular to the horizontal plane. Within the scope of the present invention, the "longitudinal direction" may be understood as the length direction of the target product. When the target product is a blade of a wind turbine, the longitudinal direction of the target product is parallel to the axial direction of its central longitudinal axis, in which case the "longitudinal direction" also corresponds to the axial direction of the target product. Within the scope of the present invention, the "transverse direction" may be understood as the width direction of the target product, wherein the "transverse direction" is perpendicular to both the "longitudinal direction" and the "vertical direction". According to the present invention, the frame platform is movably arranged on a frame in a vertical direction, and the frame is movably placed on a track at the wall of the manual working space in a longitudinal direction of the target product. Thus, driven by a longitudinal motor, the frame platform can move freely in the longitudinal direction of the target product together with the frame. According to the present invention, the frame platform can move freely in the vertical direction under the drive of the vertical motor, so that it is convenient for operators to enter and exit the frame platform and realize free movement at different working heights. Furthermore, according to the present invention, driven by the transverse motor, the frame platform can be extended and retracted forward and backward along the transverse direction of the target product. Thus, for example, during the painting operation, the relative distance between the spray gun and the blade surface can be ensured, thereby ensuring uniform painting and improving the painting quality. Moreover, when not in use, space can be saved and the existing paint room can accommodate larger blades. When the frame platform is fully extended, the distance between the side of the frame platform facing away from the frame and the side of the frame facing the frame platform is 3800 mm at most. When the frame platform is fully compressed, the distance between the side of the frame platform facing away from the frame and the side of the frame facing the frame platform is 900 mm. In order to avoid the frame platform from colliding with the target product, at least one tentacle limiting mechanism is provided for the frame platform of the present invention. The at least one tentacle limiting mechanism is arranged on the frame platform so that the end of the tentacle limiting mechanism facing the target product protrudes from the frame platform. When the distance between the frame platform and the target product is less than a predetermined size, the tentacle limiting mechanism will be triggered or activated. With the help of the tentacle limiting mechanism according to the present invention, the frame platform can be prevented from colliding with the target product without using a traditional sensor. According to a preferred design of the present invention, the frame platform has a sliding member, and the sliding member is configured to enable the frame platform to move in a vertical direction relative to the frame under the drive of the vertical motor. According to another preferred design scheme of the present invention, the transverse motor is arranged at the sliding member, and a pneumatic push rod and a telescopic rod are arranged between the frame platform and the sliding member, wherein the pneumatic push rod drives the telescopic rod to perform telescopic movement under the drive of the transverse motor, thereby enabling the frame platform to move along the transverse direction of the target product. The whole system according to the present invention uses a combination of pneumatic push rods and motors to achieve movement and control, so that, for example, when performing paint spraying operations, it can meet the explosion-proof requirements in the paint spraying room. The use of hydraulic push rods will cause problems with oil pollution, and there will also be problems with the bending of hydraulic hoses, so it will be difficult to provide hydraulic power at the far end. If the hydraulic station is inherited to the frame platform, there will be problems with the explosion-proof of the hydraulic station motor and electronic control, and the cost will be very high. There is also the problem of explosion-proof when using a motor to directly push. In comparison, the combination of pneumatic push rods and mechanical control is sufficient for manned platforms, and there is no need to consider the problem of explosion-proof. According to another preferred design of the present invention, the tentacle limiting mechanism is a steel wire rope with an elastic body coated on the surface. The steel wire rope has sufficient hardness and toughness to ensure that it will not be broken when the tentacle limiting mechanism contacts the target product. By coating the elastic body on the surface of the steel wire rope, it can be ensured that the surface of the target product will not be scratched or damaged when the tentacle limiting mechanism contacts the target product. According to another preferred design solution of the present invention, the elastic body of the tentacle limiting mechanism is made of plastic. According to another preferred design scheme of the present invention, the tentacle limiting mechanism is constructed as a U-shaped structure, which includes two parallel side legs and a middle piece for connecting the two side legs, wherein a plate member, especially a thin plate, is arranged between the free ends of the two side legs facing away from the middle piece, and the plate member is used to be connected to the supporting element of the tentacle limiting mechanism. According to another preferred design scheme of the present invention, the tentacle limit mechanism is equipped with a reset element, in particular a spring, by means of which the activated tentacle limit mechanism can rebound, preferably completely restore to its unactivated state, wherein, within the scope of the present invention, the tentacle limit mechanism is activated when it begins to contact the target product. Preferably, when the tentacle limiting mechanism is not activated, the tentacle limiting mechanism can be supported by means of a support element, in particular a support body, so that the central longitudinal axis of the tentacle limiting mechanism preferably remains substantially parallel to the horizontal plane. Preferably, when the tentacle limiting mechanism is not activated, the reset element is in a slightly compressed state, and at this time, under the joint support of the support element and the reset element, the tentacle limiting mechanism especially remains substantially parallel to the horizontal plane. After the tentacle limiting mechanism is activated, the reset element is further compressed. When the frame platform moves laterally in a direction away from the target product, the tentacle limiting mechanism can rebound under the action of the reset element, preferably returning to its inactivated state. According to another preferred design scheme of the present invention, the end of the tentacle limiting mechanism facing away from the target product is placed on the frame platform by means of a hinge mechanism, so that the tentacle limiting mechanism can pivot relative to the frame platform, wherein the hinge mechanism has a base, a first pivot axis and a support body, wherein the hinge mechanism is fixed to a first side surface of the frame platform through the base, the support body and the base are connected to each other through the first pivot axis, and the support body is connected to a plate on the side facing the tentacle limiting mechanism, and the plate is arranged, preferably clamped and fastened between the free ends of the two side legs of the tentacle limiting mechanism. According to another preferred design of the present invention, the tentacle limiting mechanism is connected to the pressure relief valve through a connecting piece at the end away from the target product, so that the pressure relief valve starts to relieve pressure when the tentacle limiting mechanism contacts the target product. According to another preferred design of the present invention, the connecting member and the steel wire rope of the tentacle limiting mechanism are formed integrally. Preferably, the connecting member is a steel wire rope whose surface is not coated by an elastomer, thereby enabling the connecting member to be easily deformed when the tentacle limiting mechanism is activated, thereby pulling and triggering the pressure relief valve to enter a pressure relief state. According to another preferred design of the present invention, a stopper is arranged between the connecting member and the tentacle limiting mechanism, and a through hole is provided on the stopper, and the through hole is configured so that the tentacle limiting mechanism, in particular, the elastic body of the tentacle limiting mechanism, cannot pass through it. Preferably, two through holes are provided on the stopper, wherein the connecting member can pass through the through holes because the surface is not covered by the elastic body. According to another preferred design of the present invention, the tentacle limiting mechanism is equipped with a whistle, which is configured to sound an alarm when the pressure relief valve starts to release pressure. Through the alarm, the operator can be informed that the tentacle limiting mechanism has been activated, and the distance between the frame platform and the target product has been less than a preset size, and there is a risk of collision between the two. According to another preferred design of the present invention, the length of the tentacle limiting mechanism protruding from the frame platform is 500-800 mm. After the tentacle limiter touches the target product, the connector, especially the wire rope, will be deformed and pull the pressure relief valve, which will cause the pipeline to lose pressure and lock the brake. This process is carried out slowly. The slight pressure relief at the beginning will not cause the entire pneumatically controlled sliding platform to stop, but it will cause the whistle to sound an alarm. When the pneumatically controlled sliding platform continues to move toward the target product, the pressure relief valve is fully opened, and all the gas enters the pressure relief valve. Only then will the pneumatically controlled sliding platform self-lock. By limiting the length of the tentacle limiter protruding from the frame platform to 500-800mm, it can be ensured that when the pressure relief valve is fully opened, the pneumatically controlled sliding platform can completely stop moving toward the target product, thereby ensuring that the frame platform will not collide with the target product. According to another preferred design of the present invention, the pneumatically controlled sliding platform has a first safety mechanism, which is constructed as an anti-vertical falling mechanism to prevent the frame platform from suddenly and sharply falling vertically when the brakes fail or the equipment suddenly runs out of air. According to another preferred design of the present invention, the pneumatically controlled sliding platform has a second safety mechanism, which is constructed as an anti-tilt mechanism to prevent the frame platform from tipping forward due to the center of gravity being particularly forward when the frame platform is extended from the frame. According to another preferred design of the present invention, the frame platform is equipped with a pneumatic pedal, and the longitudinal motor can be controlled by stepping on the pneumatic pedal so that the frame platform moves in the longitudinal direction. The present invention adopts a pneumatic pedal to control the longitudinal movement of the platform, which not only frees the hands of the operator but also enables continuous operation. According to another preferred design of the present invention, the frame platform is equipped with a handle, through which the transverse motor, the longitudinal motor and the vertical motor are controlled so that the frame platform moves in the transverse direction, the longitudinal direction and the vertical direction respectively. According to another preferred design solution of the present invention, the pneumatically controlled sliding platform can be installed on the wall of a paint spraying room to perform paint spraying operations on the blades of the wind turbine. According to another preferred design of the present invention, in addition to the feeler limiting mechanism, the pneumatically controlled sliding platform may also have an additional sensor, by means of which the distance between the frame platform and the target product can be detected. When the detected distance is less than a predetermined minimum distance, the movement of the frame platform in the lateral direction is braked. By additionally providing a sensor, the frame platform can be further prevented from colliding with the target product, especially in extreme cases, such as when the feeler limiting mechanism does not work properly, the frame platform can be prevented from colliding with the target product. According to a second aspect of the present invention, the above object is solved by a pneumatically controlled sliding platform system for performing manual operations on a target product, wherein the pneumatically controlled sliding platform system comprises a pneumatically controlled sliding platform according to the present invention and at least two tracks arranged on the wall of a manual operation space. To avoid repetition, please refer to the above design scheme of the pneumatically controlled sliding platform. The design scheme according to the present invention can bring the following advantageous technical effects: 1. The pneumatically controlled sliding platform according to the present invention can realize the free movement of the frame platform in three dimensions and in six directions by pneumatic means. Compared with the prior art, it does not require manpower to push, thus saving labor costs;
[0039] The spacer, wherein the two side legs are separated from each other 2. The present invention uses a pneumatic pedal and a handle to control the direction of the operating platform, which improves the synchronization of the movement of the operating platform. Compared with manual pushing, it avoids the risk of the operator falling due to the inconsistency between the operator and the platform pusher, and has a great improvement in safety; 3. With the help of the whisker limit mechanism, the frame platform can be prevented from colliding with the target product without using sensors; 4. The infinite adjustment in the vertical direction is more flexible when performing manual operations compared to the fixed height scaffolding; 5. The operating platform has a stronger load-bearing capacity, can withstand a load of more than 300kg, and supports two people operating at the same time. However, the existing technology needs to consider the feasibility of human propulsion, the operating platform or frame platform is small, and only supports single-person operation; 6. When using the pneumatically controlled sliding platform according to the present invention for spray painting, the relative position of the spray gun and the blade surface can be better controlled, making the paint surface more uniform and improving the quality of spray painting; 7. The pneumatically controlled sliding platform according to the present invention can be retracted forwards and backwards, which can save space when not in use, and can allow the existing paint spraying room to accommodate larger blades when used for painting operations. The above-mentioned characteristics, features and advantages of the present invention and the ways and methods of achieving them will become clearer and easier to understand in conjunction with the following description of the embodiments of the present invention, in which the embodiments are described in detail in conjunction with the accompanying drawings. The embodiments are used to explain the present invention, but the present invention is not limited to the feature combinations given in the embodiments, nor is it limited to the functional feature combinations given in the embodiments in terms of functional features. In addition, the drawings and the description contain a large number of feature combinations, and those skilled in the art can also reasonably consider the features separately and combine them into other meaningful combinations. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings show: Figure 1 A schematic diagram of a pneumatically controlled sliding platform system according to the present invention is shown; Figure 2a A schematic diagram showing a state where the frame platform is fully extended from the frame; Figure 2b A schematic diagram showing a frame platform in a fully compressed state; Figure 3 A schematic diagram showing the whisker limiting mechanism in an inactive state; and Figure 4 A schematic diagram of the whisker limiting mechanism in an activated state is shown. DETAILED DESCRIPTION In the scope of the present invention, features marked with "particularly" or "preferably" should be understood as optional features. In the drawings, identical or similar elements and / or components are marked with identical reference numerals, respectively, so that a re-introduction is omitted. Figure 1 A schematic diagram of a pneumatically controlled sliding platform system having a pneumatically controlled sliding platform according to the present invention is shown. In the present invention, the pneumatically controlled sliding platform and the system thereof are used for manual operation on a target product. The present invention is described in detail below by taking the pneumatically controlled sliding platform and the pneumatically controlled sliding platform system as an example of spray painting a blade of a wind turbine. like Figure 1 As shown, the pneumatically controlled sliding platform system 1 comprises a pneumatically controlled sliding platform 2 and at least two tracks 3, which are arranged parallel to each other on a vertical wall 4 of a spray booth for painting blades therein. Preferably, at least two tracks can also be arranged on the other vertical walls of the spray booth, respectively. The pneumatically controlled sliding platform 2 comprises: a frame 21, a frame platform 22, a longitudinal motor 23, a vertical motor 24, a transverse motor 25 and at least one tentacle limiting mechanism 26, wherein the frame 21 is movably arranged on the track 3 in the longitudinal direction of the blade; wherein the frame platform 22 is movably arranged on the frame 21 in the vertical direction; wherein the longitudinal motor 23 is arranged on the frame 21, preferably arranged on the upper part of the frame 21, and the longitudinal motor 23 is constructed to drive the frame 21 to move in the longitudinal direction of the blade; wherein the vertical motor 24 is arranged on the frame 21, preferably arranged on the upper part of the frame 21, and the vertical motor 24 is constructed to drive the frame platform 22 to move in the vertical direction; wherein the transverse motor 25 is arranged on the frame platform 22, preferably arranged at the component of the frame platform 22 connected to the frame 21, and the transverse motor 25 is constructed to drive the frame platform 22 to move in the transverse direction of the blade; wherein the at least one tentacle limiting mechanism 26 is arranged on the frame platform 22 so that the end of the tentacle limiting mechanism 26 facing the blade protrudes from the frame platform 22 to prevent the blade from colliding with the frame platform 22. Within the scope of the present invention, the "longitudinal direction" can be understood as the length direction of the blade, which is parallel to the axial direction of the central longitudinal axis of the blade. Therefore, the "longitudinal direction" can be regarded as equivalent to the axial direction of the blade. The "vertical direction" can be understood as the direction perpendicular to the horizontal plane. The "transverse direction" can be understood as the width direction of the blade. In the Cartesian coordinate system, the "transverse direction" is perpendicular to both the "longitudinal direction" and the "vertical direction". Figure 1 The relationship between these three directions is schematically shown in Figure 1 It can be seen that the longitudinal direction is parallel to the direction in which the track 3 extends, and the vertical direction and the transverse direction are both perpendicular to the direction in which the track 3 extends. As in Figure 1 As shown in the figure, the frame platform 22 has a base plate 221 and four guardrails 222, wherein the guardrails 222 are fixed on the base plate 221 along the four sides of the base plate 221, wherein the base plate 221 supports the operator performing the painting operation, and the guardrails 222 can prevent the operator from falling from the frame platform 22. Among them, a pneumatic pedal 223 is arranged on the base plate 221 of the frame platform 22, and by stepping on the pneumatic pedal 223, the longitudinal motor 23 can be controlled to make the frame platform 22 move in the longitudinal direction. By using the pneumatic pedal 223 to control the longitudinal movement of the platform, not only the hands of the operator are liberated, but also continuous operation can be achieved. In addition, the frame platform is also equipped with a handle (not shown), through which the transverse motor 25, the longitudinal motor 23 and the vertical motor 24 are controlled to make the frame platform 22 move in the transverse direction, the longitudinal direction and the vertical direction respectively. Furthermore, the frame platform 22 is also equipped with a sliding member 224, which is configured to enable the frame platform 22 to move in the vertical direction relative to the frame 21 under the drive of the vertical motor 24. Preferably, two guide mechanisms 211 are arranged on the frame 21, and the frame platform 22 can move in the vertical direction under the action of the guide mechanisms 211. The transverse motor 25 is arranged at the sliding member 224, and a pneumatic push rod 225 and a telescopic rod 226 are arranged between the frame platform 22 and the sliding member 224, wherein one end of the telescopic rod 226 is fixed on the sliding member 224, and the other end is fixed on the frame platform 22, wherein, under the drive of the transverse motor 25, the pneumatic push rod 225 drives the telescopic rod 226 to perform telescopic movement, so that the frame platform 22 can move in the transverse direction of the blade. Preferably, the telescopic rod 226 is designed in the form of a cross pair, which is relatively firm and has sufficient strength to ensure the safety of the frame platform 22. Preferably, one end of the pneumatic push rod 225 is connected to the sliding member 224 , and the other end is connected to the telescopic rod 226 . Figure 2a The diagram schematically shows a state where the frame platform 22 is fully extended from the frame 21. When the frame platform 22 is fully extended, the distance D1 between the side of the frame platform 22 facing away from the frame 21 and the side of the frame 21 facing the frame platform 22 is preferably 3800 mm at most. Figure 2b The frame platform 22 is schematically shown in a completely compressed state. In this state, the distance D2 between the side of the frame platform 22 facing away from the frame 21 and the side of the frame 21 facing the frame platform 22 is preferably 900 mm. Figure 3 A schematic diagram of the inactive tentacles stopper 26 is shown. Before the tentacles stopper 26 contacts the blade to be painted, the tentacles stopper 26 is in an inactive state, in which the plane where the central longitudinal axis of the tentacles stopper 26 is located is substantially parallel to the horizontal plane. The tentacle limiting mechanism 26 is preferably a steel wire rope, the surface of which is coated with an elastic body, and the elastic body is preferably made of plastic. The steel wire rope has a certain hardness and toughness, which can ensure that it will not be broken when the tentacle limiting mechanism contacts the blade. The elastic body coated on the surface of the steel wire rope can prevent the tentacle limiting mechanism from scratching or even damaging the surface of the blade when it contacts the blade. like Figure 3As shown, the tentacle limiting mechanism 26 is basically designed in a U shape, including two parallel side legs 261 and a middle piece 262, and the middle piece 262 is used to connect the two side legs 261. In addition, the tentacle limiting mechanism 26 is equipped with a stopper 263, a supporting element 264, a reset element 265, a pressure relief valve 266 and a whistle (not shown), wherein the stopper 263 is arranged on the frame platform at the side of the tentacle limiting mechanism 26 that is away from the middle piece 262, and in the unactivated state, the free ends of the two side legs 261 of the tentacle limiting mechanism 26 are basically against the stopper 263. In addition, two through holes 267 are provided on the stopper 263. Preferably, the tentacle limiting mechanism 26 includes a portion covered by an elastic body and a portion not covered by an elastic body, wherein the portion covered by an elastic body of the tentacle limiting mechanism 26 is entirely located on the side of the stopper 263 facing the blade, and the portion covered by an elastic body cannot pass through the through hole 265, while the portion not covered is gathered into a strand after passing through the through hole 267 to form a connecting member 268, and the connecting member 268 is connected to the pressure relief valve 266. In other words, the connecting member 268 is integrally constructed with the tentacle limiting mechanism 26, and is also a steel wire rope with certain strength and toughness. As an alternative, the tentacle limiting mechanism 26 may also only include a portion covered by an elastomer, and the connecting member 268 is a member not covered by an elastomer and having a certain strength and toughness, preferably a steel wire rope, wherein the tentacle limiting mechanism 26 cannot pass through the through hole 267 because the surface is covered by an elastomer, while the connecting member 268 not covered by an elastomer can pass through the through hole 267 and be connected to the steel wire rope inside the tentacle limiting mechanism 26. In this case, the connecting member 268 and the tentacle limiting mechanism 26 are not constructed as one piece, but are constructed as two separate pieces, and the latter can be connected together. In this embodiment, the end of the tentacle limiting mechanism 26 facing away from the blade is placed on the first side 227 of the frame platform 22 with the aid of the supporting element 264, wherein the supporting element 264 is constructed as a hinge mechanism so that the tentacle limiting mechanism 26 can pivot relative to the frame platform 22, and comprises a base 2641, a first pivot axis 2642 and a supporting body 2643, wherein the hinge mechanism is fixed to the first side 227 of the frame platform 22 via the base 2641, the supporting body 2643 and the base 2641 are connected to each other via the first pivot axis 2642, and the supporting body 2643 is connected to a plate 269, in particular a thin plate, on the side facing the tentacle limiting mechanism 26, which is arranged between, in particular clamped and fastened to, the two side legs 261 of the U-shaped tentacle limiting mechanism 26, in particular, on the side facing away from the middle piece 262, which is arranged between, in particular clamped and fastened to the two side legs 261 of the U-shaped tentacle limiting mechanism 26. Thus, the tentacle limiting mechanism 26 can be supported on the side facing the stopper 263 by the supporting element 264. Particularly preferably, the length of the plate 269 is less than half the length of the leg 261 of the tentacle limiting mechanism, and the width of the thin plate substantially corresponds to the distance between the two legs or is slightly greater than the distance between the two legs. In this embodiment, the reset element 265 is a spring, which is arranged in a housing 2651, wherein the spring is connected to a rod 2652, wherein the housing 2651 is pivotably arranged on a second side 228 of the frame platform 22 via a second pivot axis 2653 at a first end, and the housing 2651 is connected to the plate 269 at a second end opposite to the first end. Preferably, in the inactive state, the resetting element 265 is in a particularly slightly compressed state, and the tentacle limiting mechanism 26 can be supported on the side facing away from the stopper 263 by the resetting element 265. Thus, in the inactive state, the tentacle limiting mechanism 26 can be kept substantially parallel to the horizontal plane under the action of the supporting element 264 and the resetting element 265. Alternatively, in the inactive state, the tentacle limiting mechanism 26 can also be kept substantially parallel to the horizontal plane only by the supporting element 264. like Figure 3 As shown, the tentacle limiting mechanism 26 is connected to the pressure relief valve 266 at the end away from the blade through a connecting piece 268. In addition, the tentacle limiting mechanism 26 is also equipped with a whistle, which is configured to alarm the operator when the pressure relief valve 266 starts to release pressure, so as to remind the operator that the distance between the frame platform 22 and the blade is less than the predetermined minimum distance, and there is a risk of collision between the two. The following uses Figure 4 To further introduce the working principle of the tentacle limiting mechanism. Figure 42 shows a schematic diagram of the tentacle stop mechanism 26 in an activated state. Within the scope of the present invention, when the distance between the frame platform 22 and the blade is less than a given size, the tentacle stop mechanism 26 touches the blade, and the tentacle stop mechanism 26 is triggered or activated. When the tentacle stop mechanism 26 is in an activated state, Figure 4 As shown, the tentacle limiting mechanism 26 swings downward around the pivot axis, so that the connecting member 268, which was originally in a relaxed state, is pulled into the through hole of the stop member 263 in the direction of the blade. At this time, the spring, which was originally in a slightly compressed state, is further compressed and causes a distance to be separated between the free ends of the stop member 263 and the side legs 261 of the tentacle limiting mechanism 26, which were originally basically close together. After the tentacle limiter 26 touches the blade, the connector 268, especially the steel wire rope, will be deformed and pull the pressure relief valve 266, thereby causing the pipeline to lose pressure and lock the brake. This process is carried out slowly. The initial slight pressure relief will not cause the entire pneumatic control sliding platform 2 to stop, but it will cause the whistle to sound an alarm. When the pneumatic control sliding platform 2 continues to move toward the target product, the pressure relief valve 266 is fully opened, and all the gas enters the pressure relief valve 266, only then will the pneumatic control sliding platform 2 self-lock. By limiting the length of the tentacle limiter 26 protruding from the frame platform 22 to 500-800mm, it can be ensured that when the pressure relief valve 266 is fully opened, the pneumatic control sliding platform 2 can completely stop moving toward the blade in the lateral direction, thereby ensuring that the frame platform 22 will not collide with the blade. Therefore, with the help of the tentacle limiter 26, it is possible to avoid the collision of the frame platform 22 with the blade without the help of traditional sensors. However, it is also conceivable that: in addition to the feeler limiting mechanism 26, the pneumatically controlled sliding platform 2 is additionally provided with a sensor, by means of which the distance between the frame platform 22 and the blade can be detected, and when the detected distance is less than a predetermined minimum distance, the lateral movement of the frame platform 22 is braked. By additionally providing a sensor, the frame platform 22 can be further prevented from colliding with the blade, especially in extreme cases, such as when the feeler limiting mechanism 26 cannot work normally, the frame platform 22 can be prevented from colliding with the blade. After the tentacle limiting mechanism 26 is activated, the reset element is further compressed on the basis of the initial state. When the frame platform moves laterally in the direction away from the target product, the tentacle limiting mechanism can rebound under the action of the reset element, preferably restored to the unactivated state, and then the spraying operation is carried out. It is also conceivable that the painting operation is continued only after the tentacle limiting mechanism 26 activated by manual reset is reset. For example, when the activated tentacle limiting mechanism cannot be restored to the initial state parallel to the horizontal plane only by means of the reset element, the tentacle limiting mechanism 26 activated by manual reset can also be reset by manual reset, and then the painting operation can be continued. In addition, the pneumatically controlled sliding platform according to the present invention has a first safety mechanism, which is configured as an anti-vertical falling mechanism to prevent the frame platform from suddenly and sharply falling vertically when the brake fails or the equipment suddenly stops breathing. Moreover, the pneumatically controlled sliding platform according to the present invention also has a second safety mechanism, which is configured as an anti-forward tilting mechanism to prevent the frame platform from tipping forward due to the center of gravity being particularly forward when the frame platform is extended from the frame. Although the present invention has been specifically described and introduced in detail through the above embodiments, the present invention is not limited to the disclosed embodiments. For example, although the present invention is described by taking the painting operation of the blades of a wind turbine as an example, the use scenario of the pneumatically controlled sliding platform according to the present invention is not limited thereto, but can also be used for spraying and cleaning large target products such as blades and aircraft. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the basic concept of the present invention, which all belong to the protection scope of the present invention. Reference numerals list 1Pneumatically controlled sliding platform system 2 Pneumatically controlled sliding platform 3 tracks 4Walls 21 racks 22 frame platform 23 longitudinal motor 24 vertical motor 25 Horizontal motor 26 Tentacle limit mechanism 211 Guidance Agency 221 base plate 222 guardrail 223 Pneumatic pedal 224 Sliding parts 225 Pneumatic Push Rod 226 telescopic rod 227 The first side of the frame platform The second side of the 228 frame platform 261 side leg 262 Middleware 263 stopper 264 Support elements 265 Reset element 266 Pressure Relief Valve 267 through holes 268 Connectors 269 panels 2641 matrix 2642 first pivot axis 2643 support 2651 Housing 2652 rod 2653 Second pivot axis D1 distance D2 distance.
Claims
1. A pneumatically controlled sliding platform, which is used to perform manual operations on a target product, comprising: - a frame, which is movably mounted on a track in the longitudinal direction of the target product, and the track is mounted on the wall of the manual work space; - a frame platform, which is arranged on the frame so as to be movable in the vertical direction; - a longitudinal motor, which is arranged on the frame and is configured to drive the frame to move in the longitudinal direction of the target product; - a vertical motor, which is arranged on the frame and is configured to drive the frame platform to move in a vertical direction; - a transverse motor, which is arranged on the frame platform and is configured to drive the frame platform to move in a transverse direction of the target product; as well as - at least one tentacle limiting mechanism, which is arranged on the frame platform in such a way that an end of the tentacle limiting mechanism facing the target product protrudes from the frame platform.
2. The pneumatically controlled sliding platform according to claim 1, characterized in that: The frame platform has a slide member configured to enable the frame platform to move in a vertical direction relative to the frame under the drive of the vertical motor.
3. The pneumatically controlled sliding platform according to claim 2, characterized in that: The transverse motor is arranged at the sliding member, and a pneumatic push rod and a telescopic rod are arranged between the frame platform and the sliding member, wherein the pneumatic push rod drives the telescopic rod to perform telescopic movement under the drive of the transverse motor, so that the frame platform can move along the transverse direction of the target product.
4. The pneumatically controlled sliding platform according to any one of claims 1 to 3, characterized in that: The tentacle limiting mechanism is a steel wire rope whose surface is coated with an elastic body.
5. The pneumatically controlled sliding platform according to claim 4, characterized in that: The elastic body is made of plastic.
6. The pneumatically controlled sliding platform according to any one of claims 1 to 3, characterized in that: The tentacle stopper is provided with a reset element, by means of which the activated tentacle stopper can be rebounded, wherein the tentacle stopper is activated when it contacts the target product.
7. The pneumatically controlled sliding platform according to any one of claims 1 to 3, characterized in that: The end of the tentacle limiting mechanism facing away from the target product is placed on the frame platform by means of a hinge mechanism, so that the tentacle limiting mechanism can pivot relative to the frame platform.
8. The pneumatically controlled sliding platform according to any one of claims 1 to 3, characterized in that: The tentacle limiting mechanism is connected to the pressure relief valve through a connecting piece at the end away from the target product, wherein the pressure relief valve starts to relieve pressure when the tentacle limiting mechanism contacts the target product.
9. The pneumatically controlled sliding platform according to claim 8, characterized in that: The tentacle limiting mechanism is a steel wire rope whose surface is coated with an elastic body, wherein the connecting piece and the steel wire rope of the tentacle limiting mechanism are formed integrally.
10. The pneumatically controlled sliding platform according to claim 9, characterized in that: A stopper is arranged between the connecting member and the tentacle limiting mechanism. A through hole is formed on the stopper. The through hole is configured so that the tentacle limiting mechanism cannot pass through the through hole.
11. The pneumatically controlled sliding platform according to claim 10, characterized in that: The surface of the connecting piece is not covered by the elastomer and can pass through the through hole.
12. The pneumatically controlled sliding platform according to any one of claims 1 to 3, characterized in that: The tentacle limiting mechanism is constructed in a U shape, including two parallel side legs and a middle piece for connecting the two side legs, wherein a plate is arranged between the free ends of the two side legs facing away from the middle piece, and the plate is used to connect to the supporting element of the tentacle limiting mechanism.
13. The pneumatically controlled sliding platform according to claim 8, characterized in that: The feeler limiting mechanism is equipped with a whistle, and the whistle is configured to sound an alarm when the pressure relief valve starts to relieve pressure.
14. The pneumatically controlled sliding platform according to any one of claims 1 to 3, characterized in that: The length of the tentacle limiting mechanism protruding from the frame platform is 500-800mm.
15. The pneumatically controlled sliding platform according to any one of claims 1 to 3, characterized in that: The frame platform is equipped with a pneumatic pedal, and by stepping on the pneumatic pedal, the longitudinal motor can be controlled to move the frame platform in the longitudinal direction.
16. The pneumatically controlled sliding platform according to any one of claims 1 to 3, characterized in that: The frame platform is equipped with a handle, through which the transverse motor, the longitudinal motor and the vertical motor are controlled, so that the frame platform moves in the transverse direction, the longitudinal direction and the vertical direction respectively.
17. The pneumatically controlled sliding platform according to any one of claims 1 to 3, characterized in that: The target product is a blade for a wind turbine; or The pneumatically controlled sliding platform can be mounted on the wall of a paint booth to perform painting operations on blades of wind turbines.
18. A pneumatically controlled sliding platform system, the pneumatically controlled sliding platform system is used for manual operation on a target product, characterized in that: The pneumatically controlled sliding platform system comprises a pneumatically controlled sliding platform according to any one of the preceding claims, and at least two rails arranged on the wall in a manual working space.