Pneumatic driving type fixed-point moving device and working method thereof

Abstract

The invention relates to a pneumatic driving type fixed-point moving device and a working method thereof. The pneumatic driving type fixed-point moving device comprises a frame, a limiting switch, a guide sliding pipe, a sliding direction switcher, a left driver, a fixed-point shifter and a right driver. The limiting switches are arranged on the left side and the right side of the frame top beam, the two ends of the guide sliding pipe are fixedly connected through the supporting stand columns, the sliding direction switcher is arranged in the guide sliding pipe, the two ends of the sliding direction switcher are elastically connected with the supporting stand columns respectively, and the stroke direction of the fixed-point moving device is switched through the limiting switches on the left side and the right side. The left driver, the fixed-point shifter and the right driver are all sleeved on the guide sliding pipe, the top of the left driver and the top of the right driver are respectively connected with a reverse thrust pipe, the top of the fixed-point shifter is connected with a blowing pipe, the blowing pipe is arranged in the reverse thrust pipe, a spring is sleeved on the reverse thrust pipe, one end of the spring is connected with the reverse thrust pipe, and the other end of the spring is connected with the blowing pipe. The fixed-point moving device has the functions of emergency braking and accurate positioning, has the advancing function of autonomous back-and-forth travel, and is high in intelligent degree.

Description

Technical Field

[0001] The invention relates to a pneumatically driven fixed-point moving device and a working method thereof, belonging to the technical field of mobile auxiliary equipment. Background Art

[0002] Currently, in industrial production processes, the drive mechanism for some fixed-point reciprocating production operating devices generally uses an electric drive device. Its working principle is that the motor is used as the power source to drive the gears and chains to rotate, and the rotation of the chain then drives the mobile device to move forward as a whole. The fixed-point stop and start operation of the mobile device is controlled by the matching electronic travel switch and its electronic travel encoder. However, due to the different production working environment conditions, some working spaces are not suitable for the use of electric-driven self-propelled multi-point mobile devices for the following reasons:

[0003] 1. The temperature in many closed industrial production spaces is very high, some reaching over 100 degrees Celsius, and some even higher. Electrical equipment or components working in such harsh environments are prone to aging and damage;

[0004] 2. The entire set of electrical drive equipment is expensive and technically complex, which brings high investment costs for engineering construction, high maintenance and operating costs for production equipment, and complex maintenance and repair technologies for production equipment.

[0005] 3. When the motor is used as the driving source, once it encounters strong external resistance during operation, it lacks the ability to independently identify and avoid it, which often leads to serious consequences such as motor burning or chain breaking, causing great impact and losses to production;

[0006] 4. Some working spaces, such as dust blowing systems, are often equipped with air sources. The air source itself is a very good source of power. It can directly and fully utilize the air source at the work site as a driving force source, greatly improving the working efficiency, while complying with the ecological concept of energy conservation, emission reduction, and green environmental protection.

[0007] Chinese patent ZL2019209983904 discloses "a self-propelled multi-point mobile device based on air power", but the device has a problem that the mobile vehicle cannot brake suddenly at the predetermined position due to the inertia of its movement, which seriously affects the accuracy of the mobile vehicle's fixed-point stopping action and has an adverse impact on the quality of industrial production. Summary of the Invention

[0008] In response to the shortcomings of the existing technology, the present invention provides a pneumatically driven fixed-point moving device, which uses a high-pressure gas source as a driving force source and can be directly applied to industrial scenarios with existing gas sources. At the same time, the fixed-point moving device has the advantages of emergency braking and precise positioning.

[0009] The invention also provides a working method of the pneumatically driven fixed-point moving device.

[0010] The technical solutions of the present invention are as follows:

[0011] A pneumatically driven fixed-point moving device comprises a frame, a limit switch, a guide slide tube, a sliding direction switcher, a left driver, a fixed-point shifter and a right driver;

[0012] The limit switches are provided on the left and right sides of the frame, the two ends of the guide slide are fixedly connected by the support columns, the sliding switch is provided in the guide slide and its two ends are elastically connected to the support columns respectively, and the direction switching of the sliding switch is realized by the limit switches on the left and right sides;

[0013] The left driver, fixed-point shifter and right driver are all mounted on the guide slide tube. The top of the left driver and the right driver are respectively connected with a reverse thrust tube. The top of the fixed-point shifter is connected with a blow pipe. Both ends of the blow pipe are placed in the reverse thrust tube. A spring is mounted on the reverse thrust tube. One end of the spring is connected to the reverse thrust tube and the other end is connected to the blow pipe. The high-pressure pulse airflow pushes the left driver or the right driver forward through the blow pipe, and the left driver or the right driver drives the fixed-point shifter to move forward intermittently.

[0014] Preferably, the limit switch includes a bracket, a guide slide, a limit column A and a limit column B; the top of the bracket is connected to the frame, one end of the limit column A and the limit column B is fixedly connected to the bracket, and the other end passes through the displacement hole opened on the guide slide, and the bottom end of the guide slide is connected to a rotating wheel.

[0015] Preferably, the sliding switch includes a left slide, a connecting plate and a right slide connected in sequence; a directional plate is provided on the top of the left slide and the right slide, guide pulleys are symmetrically provided on both sides of the left slide and the right slide, and multiple groups of symmetrically arranged lifters are provided on one side of the connecting plate.

[0016] Preferably, the lifter is a wedge-shaped plate, and a sloped driving and lifting slide is provided on the wedge-shaped plate.

[0017] Preferably, the guide slide tube is provided with a limiting window hole, a driving window hole and a locking buckle clamp rail, the locking buckle clamp rail is provided on the upper surface of the guide slide tube wall, and the driving window hole is symmetrically provided on both sides of the locking buckle clamp rail.

[0018] Preferably, two parallel guide grooves are symmetrically provided on the inner wall of the guide slide tube, and the guide pulley is placed in the guide grooves.

[0019] Preferably, the guide pulley comprises a horizontal rotating wheel and a vertical rotating wheel connected to each other. The advantage of this design is that it can ensure the travel stability of the guide pulley in the guide groove and reduce the sliding friction of the guide pulley.

[0020] Preferably, the inner cavity of the guide slide tube is provided with a plurality of equally spaced drive gear groups, and each drive gear group includes two drive gears symmetrically arranged on the left and right; the drive gear includes a fixed frame, a baffle, a spring, a guide slide shaft A, a guide slide shaft B and a drive lift shaft, the fixed frame is fixed on the inner wall of the guide slide tube, one end of the guide slide shaft A and the guide slide shaft B are connected to the fixed frame, and the other end is placed in the guide slide hole opened by the baffle, and the guide slide shaft B is connected to the baffle through a spring; one end of the drive lift shaft is fixed to the bottom of the baffle, and the other end is placed in the drive lift slide of the lifter, and the top of the baffle is located in the drive gear window hole. The advantage of this design is that during the direction switching process of the sliding switch, the lifter can enable the baffle of the drive gear to realize the lifting operation, and can enable the top of the baffle to extend out of the drive gear window hole to realize the interception and positioning of the left drive, fixed-point shifter or right drive.

[0021] Preferably, the left and right actuators have the same structure, including a cylindrical slider, a column, and a lifting plate. The cylindrical slider is sleeved on the outer wall of the guide tube, the top of the cylindrical slider is connected to the reverse thrust tube via the column, and the lifting plate is laterally connected to the column. The purpose of this design is that when the right actuator reaches the rightmost end of the guide tube or the left actuator reaches the leftmost end of the guide tube, the lifting plate impacts the bottom of the proximal limit switch, lifting the limit switch upward, thereby releasing the limit switch's fixed restriction on the sliding switch. Then, under the combined action of the springs at both ends of the sliding switch, the sliding switch begins to slide in the direction opposite to the actuator's movement direction, achieving the fixed restriction of the other side limit switch on the sliding switch.

[0022] Preferably, a blowpipe distance stopper is provided on the outer wall of the end of the blowpipe, and a reverse thrust pipe distance stopper is provided on the inner wall of the end of the reverse thrust pipe, and the blowpipe distance stopper can contact the reverse thrust pipe distance stopper. The advantage of this design is that one end of the blowpipe is located inside the reverse thrust pipe, and during the relative movement of the blowpipe and the reverse thrust pipe in opposite directions, after the blowpipe distance stopper and the reverse thrust pipe distance stopper come into contact with each other, the two can achieve mutual dragging and traction during the movement.

[0023] Preferably, the top of the blowing pipe is connected to an air receiving pipe, and the bottom of the blowing pipe is connected to a driving pipe.

[0024] Preferably, the fixed-point shifter includes a cylindrical slider, which is sleeved on the outer wall of the guide slide tube, and the top of the cylindrical slider is connected to the bottom of the driving tube.

[0025] Preferably, a pressure element is provided at the bottom of the drive tube, and left and right release elements are provided on either side of the drive tube, with the left and right release elements positioned on either side of the fixed-point shifter. This design has the advantage that airflow enters the drive tube through the air receiving tube, driving the pressure element downward. This downward movement of the pressure element causes the outer ends of the left and right release elements to tilt upward, thereby releasing the fixed-point shifter from its fixed position.

[0026] Preferably, the left releaser comprises a left-positioned lever, a crossbar, and a vertical support rod, which are hinged in sequence. The bottom of the vertical support rod is fixedly connected to the cylindrical slider of the fixed-point shifter. The left-positioned lever and the crossbar are both provided with a single-sided cam. The advantage of this design is that the single-sided cam ensures that the left-positioned lever and the crossbar can only rotate in one direction during rotation.

[0027] Preferably, the pressure device includes a main rod, which is provided with a pressure circular plate, a pressure rod, a limit baffle and a locking buckle in sequence from top to bottom; a horizontal circular hole baffle is provided on the inner wall of the driving tube, and sliding grooves are symmetrically opened on both sides of the tube wall. The pressure rod extends out of the sliding groove and contacts the crossbeam rod, the main rod passes through the circular hole baffle and the limit baffle is located below the circular hole baffle, a spring is sleeved on the main rod and the spring is located between the pressure rod and the circular hole baffle.

[0028] Preferably, the locking buckle includes a left diagonal brace, a right diagonal brace, a left transverse brace and a right transverse brace; the bottom ends of the left diagonal brace and the right diagonal brace are hinged to the main rod through a connecting shaft A, the top end of the left diagonal brace and one end of the left transverse brace are hinged to the connecting shaft B, the top end of the right diagonal brace and one end of the right transverse brace are hinged to the connecting shaft C, the other end of the left transverse brace and the other end of the right transverse brace are hinged to the connecting shaft D, and the connecting shaft D is placed in a sliding hole opened on the main rod and the connecting shaft D is connected to the main rod through a spring.

[0029] A method for operating a pneumatically driven fixed-point moving device comprises the following steps:

[0030] 1) When the fixed-point shifter moves to the right, the high-pressure pulse airflow enters the driving tube through the air receiving tube, and the pressure device moves downward under the push of the high-pressure airflow. The outer ends of the left and right releasers are simultaneously tilted upward, and the fixed-point locking state of the fixed-point shifter is released. The locking buckle passes through the locking buckle clamping rail, and the left and right diagonal braces of the locking buckle are ejected. The locking buckle is confined below the locking buckle clamping rail;

[0031] 2) At the same time, high-pressure air flows into the left and right blowpipes. Since the left actuator is now limited by the left drive block, it remains in position, while the right actuator moves to the right and passes the left drive block at the next point.

[0032] 3) The right driver continues to move to the right, and the distance stops of the left and right blowpipes contact and pull with the distance stops of their corresponding left and right reverse thrust pipes. After that, the left driver, the fixed-point shifter, and the right driver become one and slide to the right synchronously. When the kinetic energy of the right driver decreases to zero, the right driver stops moving forward, but under the traction of the spring retraction force, the right driver begins to slide back and is eventually stopped in front of the left driver stop at that point. After that, the right driver remains in place and continues to be pulled by the spring retraction force, while the fixed-point shifter and the left driver continue to move forward.

[0033] 4) As the fixed-point shifter moves to the right, the locking buckle leaves the locking buckle clamping rail, and the pressure device returns to its original position under the action of the spring restoring force, and the left and right releasers return to a horizontal state; then the fixed-point shifter continues to slide to the next set of drive gears, and the left releaser is stopped by the left drive gear, and the fixed-point shifter stops there;

[0034] 5) The fixed-point shifter stops moving forward and remains in this position; however, the left drive continues to move forward. When the left drive passes the left drive gear at the next point, the kinetic energy is reduced to zero and stops.

[0035] 6) The process of steps 1) to 5) is an intermittent forward movement of the fixed-point shifter. The fixed-point shifter intermittently repeats the forward movement of steps 1) to 5) until the right drive reaches the rightmost end of the guide tube.

[0036] 7) When the right drive reaches the rightmost end, the lifting plate of the right drive lifts the right limit switch. Under the action of the springs at both ends, the sliding switch slides to the left. The left directional plate passes the left limit switch, and the sliding switch is locked by the left limit switch.

[0037] 8) During the reverse conversion process of the sliding switch, the lifter lifts all the right drive gears upwards and drops all the left drive gears synchronously;

[0038] 9) At this point, the slide switcher has completed the reverse conversion of the travel direction of the fixed-point shifter and the left and right actuators. The fixed-point shifter and the left and right actuators begin to move from "right" to "left". After the fixed-point shifter intermittently repeats multiple forward movements, the left actuator finally reaches the leftmost end of the guide tube.

[0039] 10) The left actuator's lifting plate lifts the left limit switch. The sliding switch begins to slide to the right under the action of the springs at both ends. The right directional plate passes the right limit switch, and the position of the sliding switch is locked by the right limit switch.

[0040] 11) Repeat steps 1) to 10), and the fixed-point shifter and the left and right actuators continue to perform synchronous, reciprocating, intermittent sliding motions to the left or right.

[0041] The technical features and beneficial effects of the present invention are as follows:

[0042] Compared to traditional, existing air-powered operating systems, this pneumatically driven fixed-point moving device offers enhanced emergency braking and precise positioning capabilities. It also enables automatic steering, eliminating the need for manual switching of operating directions. This achieves the combined benefits of improved operating efficiency, labor savings, and cost reduction. The entire operating process utilizes only high-pressure pulsed airflow as a power source, replacing other power sources such as electricity. This makes the process safer and more reliable, aligning with energy conservation, emission reduction, and low-carbon environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 Schematic diagram of the overall structure of the fixed-point moving device of the present invention;

[0044] Figure 2 It is a partial structural diagram of the fixed-point moving device of the present invention;

[0045] Figure 3 Schematic diagram of the structure of the fixed-point shifter in the present invention;

[0046] Figure 4 Schematic diagram of the structure of the pressure device in the present invention;

[0047] Figure 5 Schematic diagram of the structure of the locking buckle in the present invention;

[0048] Figure 6 Schematic diagram of the structure of the driving tube in the present invention;

[0049] Figure 7 It is a structural schematic diagram of the left releaser in the present invention;

[0050] Figure 8 Schematic diagram of the structure of the right releaser of the present invention;

[0051] Figure 9 Schematic diagram of the structure of the guide slide pipe in the present invention;

[0052] Figure 10 for Figure 9 Section I in

[0053] Figure 11 Schematic diagram of the structure of the sliding switch in the present invention;

[0054] Figure 12 This is a front view of the limit switch of the present invention;

[0055] Figure 13 It is a side view of the limit switch of the present invention;

[0056] Figure 14 Schematic diagram of the structure of the lifter in the present invention;

[0057] Figure 15Schematic diagram of the structure of the driving gear in the present invention;

[0058] Figure 16 for Figure 11 Section II of the middle sliding switch;

[0059] Figure 17 Schematic diagram of the cooperation between the driving gear and the lifter in the present invention;

[0060] Figure 18 It is a structural diagram of the left driver in the present invention;

[0061] Figure 19 Schematic diagram of the structure of the right driver in the present invention;

[0062] Figure 20 2. It is a cross-sectional view of the locking buckle rail clamp of the present invention;

[0063] In the figure: 1-frame, 2-guide slide tube, 3-slide switch, 4-left driver, 5-fixed point shifter, 6-right driver, 7-limit block, 8-limit switch, 9-spring, 10-support column, 11-blow pipe, 12-reverse thrust pipe, 13-spring, 14-reverse thrust pipe distance block, 15-blow pipe distance block, 16-left blow pipe, 17-receiving pipe, 18-right blow pipe, 19-driving pipe, 20-left releaser, 21- Pressure device, 22-spring, 23-right releaser, 24-cylinder slider, 25-circular hole baffle, 26-main rod, 27-pressure circular plate, 28-pressure rod, 29-limit baffle, 30-locking buckle, 31-spring, 32-left cross brace, 33-connecting shaft B, 34-left diagonal brace, 35-sliding hole, 36-connecting shaft D, 37-right cross brace, 38-connecting shaft C, 39-right diagonal brace, 40-connecting shaft A, 41-slide, 42-beam rod , 43-left stop bar, 44-vertical support bar, 45-vertical support bar, 46-crossbeam bar, 47-right stop bar, 48-bobbin, 49-limit window hole, 50-locking buckle clamp rail, 51-drive stop window hole, 52-guide slot, 53-slide, 54-directional plate, 55-connecting plate, 56-lifter, 57-spring, 58-rotating wheel, 59-rotating shaft, 60-limit column A, 61-limit column B, 62-displacement hole, 63-guide slide , 64-bracket, 65-drive lifting slide, 66-wedge plate, 67-baffle, 68-fixed frame, 69-spring, 70-guide slide shaft B, 71-guide slide hole, 72-guide slide shaft A, 73-drive lifting shaft, 74-horizontal turntable, 75-vertical turntable, 76-slide rail square tube, 77-left drive block, 78-right drive block, 79-column, 80-lifting plate, 81-convex block, 82-left rail, 83-right rail, 84-guide pulley. DETAILED DESCRIPTION

[0064] The present invention will be further described below with reference to embodiments and accompanying drawings, but is not limited thereto.

[0065] Example 1:

[0066] like Figure 1-2 As shown, this embodiment provides a pneumatically driven fixed-point moving device, comprising a frame 1, a limit switch 8, a guide slide 2, a sliding direction switch 3, a left driver 4, a fixed-point shifter 5, and a right driver 6;

[0067] The left and right sides of the top beam of the frame 1 are fixedly connected to the limit switches 8, the two ends of the guide slide tube 2 are fixedly connected by support columns 10, the sliding switch 3 is arranged in the guide slide tube 2 and its two ends are elastically connected to the support columns 10 respectively, and the direction conversion of the sliding switch 3 is realized by the limit switches 8 on the left and right sides;

[0068] The left driver 4, the fixed-point shifter 5 and the right driver 6 are all mounted on the guide slide 2. The top of the left driver 4 and the right driver 6 are respectively connected to a reverse thrust pipe 12. The top of the fixed-point shifter 5 is connected to a blow pipe 11. Both ends of the blow pipe 11 are placed in the reverse thrust pipe 12. A spring 13 is sleeved on the reverse thrust pipe 12. One end of the spring 13 is connected to the reverse thrust pipe 12 and the other end is connected to the blow pipe 11. The high-pressure pulse airflow pushes the left driver 4 or the right driver 6 through the blow pipe 11 to drive the fixed-point shifter 5 to move forward intermittently.

[0069] Specifically, the frame 1 can be an independent steel frame structure, or an existing frame structure at the work site, and the limit switches 8 on the left and right sides can be installed on the frame. Figure 12 、 13 As shown, the limit switch 8 includes a bracket 64, a guide plate 63, a limit post A60, and a limit post B61. The top of the bracket 64 is connected to the top beam of the frame 1. One end of the limit post A60 and the limit post B61 are fixedly connected to the bracket 64, and the other end extends through the displacement hole 62 defined in the guide plate 63. The bottom end of the guide plate 63 is connected to a rotating wheel 58. The bottom of the guide plate 63 is curved to facilitate lifting of the guide plate 63 by the lifting plate 80 of the left or right actuator 4 or 6. The rotating wheel 58 at the bottom of the guide plate 63 ensures smooth and unobstructed movement of the guide plate 63.

[0070] like Figure 11As shown, the sliding direction switch 3 includes a left slider 53, a connecting plate 55, and a right slider, which are connected in sequence. The top of each left slider is provided with a directional plate 54. Guide pulleys 84 are symmetrically arranged on both sides of the left and right sliders. The connecting plate 55 is a long strip, and one side of the connecting plate 55 is provided with multiple sets of symmetrically arranged wedge-shaped lifters 56. This embodiment shows three sets of symmetrically arranged lifters. The left and right sliders are connected to the ends of the support column 10 via springs 57. The left and right sliders cooperate with limit switches 8 on the left and right sides. The left limit switch can engage the directional plate on the left slider, and the right limit switch can engage the directional plate on the right slider, thereby enabling the left and right actuators to move in one direction.

[0071] like Figure 9 As shown, the guide tube 2 is provided with a limit window 49, a drive stop window 51, and a locking clip rail 50. The locking clip rail 50 is provided on the upper surface of the guide tube wall and is located between the left and right drive stop windows 51. An orientation plate 54 extends upward from the limit window 49 to cooperate with the limit switch 8. At the same time, the orientation plate 54 has a certain horizontal movement space within the limit window 49. The limit switch 8 is correspondingly located above the limit window 49, and the limit switch 8 can block the orientation plate 54.

[0072] like Figure 2 As shown, three drive gear groups are provided on the inner wall of the guide slide tube 2 in this embodiment, and each drive gear group includes two drive gears arranged opposite to each other, such as Figure 17 The left drive block 77 and the right drive block 78 are shown, and each drive block is movably connected to a lifter. Figure 15 As shown, the driving block includes a fixing frame 68, a baffle 67, a spring 69, a guide sliding shaft A72, a guide sliding shaft B70 and a driving lifting shaft 73. The fixing frame 68 is connected to the inner wall of the guide slide tube 2. One end of the guide sliding shaft A72 and the guide sliding shaft B70 are connected to the fixing frame 68, and the other end is placed in the guide sliding hole 71 opened in the baffle 67. The guide sliding shaft B70 is connected to the baffle 67 through the spring 69. One end of the driving lifting shaft 73 is fixed to the bottom of the baffle 67, and the other end is placed in the driving and lifting slide 65 of the lifter 56. The driving and lifting slide 65 forms a certain angle with the horizontal plane, and the top end of the baffle 67 is located in the driving block window hole 51. During the direction switching process of the sliding switch, the lifter 56 can make the baffle 67 of the driving block realize the lifting operation, so that the top end of the baffle rises or falls from the driving block window hole 51.

[0073] The top of the baffle 67 is an inclined surface, so that the left driver 4 and the right driver 6 pass through the baffle 67 more smoothly. When the driving lifting shaft 73 is located at the top of the driving lifting slide 65, the baffle 67 rises and is just flush with the cylindrical slider 24. When the driving lifting shaft 73 is located at the bottom of the driving lifting slide 65, the baffle 67 falls and is just flush with the upper surface of the guide slide tube 2.

[0074] like Figure 18 、 19 As shown, the left and right actuators 4 and 6 have identical structures, each comprising a cylindrical slider 24, a column 79, and a lifting plate 80. The cylindrical slider 24 is sleeved onto the outer wall of the guide tube 2. The top of the cylindrical slider 24 is connected to the reverse thrust tube 12 via the column 79, and the lifting plate 80 is laterally connected to the column 79. The lifting plate 80 facilitates the direction change of the slide switch (the lifting plate can lift the limit switch, thereby releasing the limit switch from restricting the directional plate). Thus, the operation of the left or right actuator drives the fixed-point shifter to move left or right. Furthermore, the wall thickness of the cylindrical sliders of the left actuator 4, the fixed-point shifter 5, and the right actuator 6 should be less than the height of the top inclined surface of the baffle 67 of the drive block, with the top of the cylindrical slider wall being flush with the top of the baffle. This design objective is to ensure that the cylindrical slider wall exerts a downward compressive impact force on the baffle, ensuring that the cylindrical slider can smoothly pass over the baffle and continue forward.

[0075] like Figure 2 、 18 As shown in Figures 19 and 19, a blowpipe distance stopper 15 is provided on the outer wall of the end of the blowpipe 11, and a reverse thrust pipe distance stopper 14 is provided on the inner wall of the open end of the reverse thrust pipe 12. The other end of the reverse thrust pipe 12 is a closed end, and the blowpipe distance stopper 15 can contact the reverse thrust pipe distance stopper 14. The end of the blowpipe 11 is located inside the reverse thrust pipe 12. During the relative movement of the blowpipe 11 and the reverse thrust pipe 12, when the blowpipe distance stopper 15 contacts the reverse thrust pipe distance stopper 14, a dragging effect or a blocking effect can be achieved between the two.

[0076] like Figure 3 As shown, the top of the blowpipe 11 is connected to the air receiving pipe 17, and the bottom of the blowpipe 11 is connected to the drive pipe 19. High-pressure pulsed air enters through the air receiving pipe 17, reaches the blowpipe 11 and the drive pipe 19, and then enters the reverse thrust pipe 12 from the blowpipe 11. The fixed-point shifter 5 includes a cylindrical slider 24, which is sleeved on the outer wall of the guide slide tube 2. The top of the cylindrical slider 24 is connected to the bottom of the drive pipe 19.

[0077] like Figure 3 As shown, a pressure element 21 is installed at the bottom of the drive tube 19. A left release 20 and a right release 23 are respectively provided on either side of the drive tube 19. The left release 20 and the right release 23 are respectively placed on the top walls of the fixed-point shifter's cylindrical slider 24. Airflow enters the drive tube 19 through the air receiving tube 17, driving the pressure element 21 downward. As the pressure element 21 descends, the ends of the left and right releases 20 and 23 tilt upward, thereby releasing their fixed position on the fixed-point shifter.

[0078] like Figure 7As shown, the left releaser 20 includes a left-positioned block rod 43, a crossbar 42, and a vertical support rod 44, which are hinged in sequence. The bottom of the vertical support rod 44 is fixedly connected to the cylindrical slider 24 of the fixed-point shifter. The left-positioned block rod 43 and the crossbar 42 are both provided with a single-sided convex block 81. The single-sided convex block 81 can ensure that the left-positioned block rod 43 and the crossbar 42 can only rotate in one direction during the rotation process, and the left-positioned block rod 43 can be blocked by the driving block plate 67. The right releaser 23 has the same structure as the left releaser 20. Figure 8 shown.

[0079] like Figure 4 、 6 As shown, the pressure device 21 includes a main rod 26, which is equipped with a pressure disc 27, a pressure rod 28, a limit baffle 29, and a locking buckle 30 in order from top to bottom. A horizontal circular hole baffle 25 is provided on the inner wall of the drive tube 19, and slidable grooves 41 are symmetrically formed on both sides of the tube wall. The pressure rod 28 extends through the slidable grooves 41 and contacts the crossbar 42. The main rod 26 passes through the circular hole baffle 25, and the limit baffle 29 is located below the circular hole baffle 25. A spring 22 is mounted on the main rod 26 and located between the pressure rod 28 and the circular hole baffle 25. The high-pressure pulsed airflow directly impacts the pressure disc 27, pushing the main rod 26 downward. The main rod 26 then rises due to the restoring force of the spring 22. As the pressure device 21 descends, the pressure rod 28 presses down the inner ends of the cross beams 42 and 46. The outer ends of the cross beams 42 and 46 tilt up, driving the left position shift rod 43 and the right position shift rod 47 to tilt up at the same time, thereby releasing their fixed state on the fixed point shifter.

[0080] like Figure 5 As shown, the locking buckle 30 includes a left diagonal brace 34, a right diagonal brace 39, a left transverse brace 32 and a right transverse brace 37; the bottom ends of the left diagonal brace 34 and the right diagonal brace 39 are hinged to the main rod 26 through a connecting shaft A40, the top end of the left diagonal brace 34 is hinged to one end of the left transverse brace 32 through a connecting shaft B33, the top end of the right diagonal brace 39 is hinged to one end of the right transverse brace 37 through a connecting shaft C38, the other end of the left transverse brace 32 and the other end of the right transverse brace 37 are hinged through a connecting shaft D36, and the connecting shaft D36 is placed in a sliding hole 35 provided on the main rod 26 and the connecting shaft D36 is connected to the main rod 26 through a spring 31. During the descent of the main rod 26, when the locking buckle 30 passes through the locking buckle clamping rail 50, the left diagonal brace 34 and the right diagonal brace 39 retract inwardly, and after passing through the locking buckle clamping rail 50, the left diagonal brace 34 and the right diagonal brace 39 return to a horizontal state and are located below the locking buckle clamping rail 50, as shown in FIG. Figure 20 shown.

[0081] The working principle of the technical solution of this embodiment is as follows:

[0082] (1) Principle of autonomous movement of fixed-point shifter:

[0083] Assuming the fixed-point shifter is currently traveling right, the slide switch is now limited by the right limit switch. The lifter causes the left drive block's baffle to be raised (extending from the drive block's window) and the right drive block's baffle to be lowered. After the high-pressure pulsed airflow enters the fixed-point shifter's drive tube from the air receiving tube, the pressure element within the drive tube begins to move downward due to the impact of the high-pressure airflow. The locking buckle rapidly moves downward. As the locking buckle passes through the locking buckle clamping rail, the left and right diagonal braces of the locking buckle are squeezed inward by the locking buckle clamping rail, causing them to begin to close inward. After the locking buckle passes through the gap between the locking buckle clamping rails, the left and right diagonal braces quickly return to their open state, being intercepted below the locking buckle clamping rails. During the aforementioned process of the pressure element descending, the pressure element's pressure rod simultaneously depresses the left / right releaser's crossbars, causing the left / right position levers and the outer ends of the crossbar to simultaneously tilt upward, releasing the fixed-point shifter's rest lock.

[0084] Continuing with the above process, the high-pressure pulsed airflow enters the corresponding left and right reverse thrust pipes, respectively, generating reverse thrust on the left and right actuators. The left actuator is temporarily held in place by the left-hand drive block, which blocks it to the left. The right actuator begins to slide rightward, passing the next corresponding left-hand drive block and continuing forward. When the right injection pipe stopper contacts the right reverse thrust pipe stopper, the right actuator's forward motion is blocked, its kinetic energy gradually decreases to zero, and the right actuator stops. The spring retraction force causes the right actuator to slide back, eventually stopping it at the nearest left-hand drive block to its left. The right actuator remains in place, and the spring retraction forces the fixed-point shifter to the right, dragging the right actuator forward. Simultaneously, the fixed-point shifter also begins to pull the left actuator rightward.

[0085] During the above process of the fixed-point shifter moving forward, the locking buckle at the bottom of the pressure device slides forward synchronously, the locking buckle moves out of the locking buckle clamping rail, and the pressure device is quickly retracted upward by the return force of the spring, and the crossbar of the left / right releaser that is tilted at the outer end is released to a horizontal state. The fixed-point shifter moves to the left driving block of its corresponding next point, and the right releaser passes through this left driving block freely. The cylindrical slider of the fixed-point shifter presses down this driving block and passes through, but the left releaser is stopped here by this driving block. Therefore, the fixed-point shifter can no longer continue to move forward to the right. At the same time, blocked by the left driving block that has just been passed, the fixed-point shifter can no longer move to the left. At this point, the fixed-point shifter has been firmly locked here.

[0086] The left drive continues to move right forward. After it passes its corresponding next left drive gear, it is blocked on its right side by the left drive gear. Finally, after the spring force is exhausted and the kinetic energy is reduced to zero, it stops at this point.

[0087] At this point, a complete movement of the fixed-point shifter to the right is completed.

[0088] (2) Working principle of sliding switch:

[0089] When the right drive reaches the rightmost end of the guide tube, the lifting plate of the right drive lifts the right limit switch. After the right limit switch disengages from the right directional plate of the sliding switcher, the sliding switcher slides to the left under the combined action of the thrust of the right spring and the tension of the left spring. Subsequently, all the right lifters on the sliding switcher synchronously lift up their corresponding right drive gears and synchronously pull down the left drive gears corresponding to all left lifters. When the left directional plate of the sliding switcher passes the left limit switch, the sliding switch is locked at the left end of the guide tube by the left limit switch.

[0090] At this point, the switching action of the sliding switch from "right" to "left" is completed.

[0091] (3) Working principle of releaser locking fixed point shifter:

[0092] When the current moving direction of the fixed-point shifter is right, the fixed-point shifter quickly moves to the left side of the left driving gear at a certain fixed-point position. The right gear lever of the right releaser is blocked by the baffle of the left driving gear. The right gear lever is forced to swing and lift in the clockwise direction, and the right gear lever passes the baffle of the left driving gear. Then, the tube wall of the cylindrical slider of the fixed-point shifter impacts and squeezes the baffle to the right, causing the baffle to move downward, and the cylindrical slider passes the baffle. Then, the left gear lever of the left releaser is blocked by the baffle. Because the left gear lever is restricted by its single-sided convex block, the left gear lever cannot swing and lift, and thus, the left gear lever is stopped by the baffle of the left driving gear.

[0093] At this point, the left shift lever and the cylindrical slider of the fixed-point shifter are separated on both sides of the baffle of the left driving gear, so the position of the fixed-point shifter is locked here and cannot move further.

[0094] Example 2:

[0095] A pneumatically driven fixed-point moving device, the structure of which is as described in Example 1, except that: Figure 10 、 16 As shown, the inner wall of the guide tube 2 is symmetrically provided with guide grooves 52 for the sliding of a guide pulley 84. The guide pulley 84 includes a connected horizontal rotating wheel 74 and a vertical rotating wheel 75. The guide pulley 84 travels in the guide grooves 52, which not only ensures the guide pulley's travel stability in the guide grooves, but also reduces the sliding friction of the guide pulley.

[0096] Example 3:

[0097] A method for operating the pneumatically driven fixed-point moving device according to embodiment 1 comprises the following steps:

[0098] 1) When the fixed-point shifter 5 moves in the right direction, the high-pressure pulse airflow enters the driving tube 19 through the air receiving tube 17, and the pressure device 21 moves downward under the push of the high-pressure airflow. The outer ends of the left releaser 20 and the right releaser 23 are simultaneously tilted upward, and the fixed-point locking state of the fixed-point shifter 5 is released. The locking buckle 30 passes through the cylindrical slider 24 and the locking buckle clamping rail 50, and the left diagonal support 34 and the right diagonal support 39 of the locking buckle 30 are ejected, and the locking buckle 30 is restricted below the locking buckle clamping rail 50. Figure 20 As shown;

[0099] 2) At the same time, the high-pressure airflow enters the left and right blowpipes 16, 18. Since the left actuator 4 is now restrained by the left drive stop 77 and remains in position, the right actuator 6 moves to the right and passes the left drive stop 77 at the next point.

[0100] 3) The right driver 6 continues to move to the right, and the distance stops of the left and right blowpipes contact and pull with the distance stops of their corresponding left and right reverse thrust pipes. Afterwards, the left driver 4, the fixed-point shifter 5, and the right driver 6 become one and slide synchronously to the right. When the kinetic energy of the right driver 6 decreases to zero, the right driver 6 stops moving forward, but under the traction of the retraction force of the spring 13, the right driver 6 begins to slide back, and is eventually stopped in front of the nearest left driver stop 77. Afterwards, the right driver 6 remains in place, and continues to be pulled by the retraction force of the spring 13, while the fixed-point shifter 5 and the left driver 4 continue to move forward.

[0101] 4) When the fixed-point shifter 5 moves to the right, the locking buckle 30 leaves the locking buckle clamping rail 50, and the pressure device 21 returns to its original position under the action of the restoring force of the spring 22. The left releaser 20 and the right releaser 23 return to a horizontal state, and the locking state of the fixed-point shifter 5 is released. When the fixed-point shifter 5 slides to the next set of driving gears, the left releaser 20 is stopped by the left driving gear 77. Therefore, the rightward movement of the fixed-point shifter is stopped. At the same time, the cylindrical slider of the fixed-point shifter passes the left driving gear and is stopped by the left driving gear from moving to the left. The fixed-point shifter 5 stops at this position.

[0102] 5) The fixed-point shifter 5 stops moving forward and remains in this position; the left driver 4 continues to move right forward, and after it passes its corresponding next left driving block, it is blocked on its right side by the left driving block, and finally stops at this point after the spring force is exhausted and the kinetic energy is reduced to zero.

[0103] 6) The process of steps 1) to 5) is an intermittent forward movement of the fixed-point shifter 5. The fixed-point shifter 5 intermittently repeats the forward movement of steps 1) to 5) until the right driver 6 reaches the rightmost end of the guide tube 2.

[0104] 7) When the right actuator 6 reaches the rightmost end, the lifting plate 80 of the right actuator 6 lifts the right limit switch 8, and the sliding switch 3 slides to the left under the elastic force of the springs 9 at both ends. The left directional plate 54 passes the left limit switch 8, and the sliding switch 3 is locked by the left limit switch 8;

[0105] 8) During the reverse conversion process of the sliding switch 3, the lifter 56 lifts all the right-side drive gears 78 upward and drops all the left-side drive gears 77 synchronously;

[0106] 9) At this point, the slide switch 3 has completed the reverse switching of the travel direction of the fixed-point shifter 5 and the left and right actuators 4 and 6. The fixed-point shifter 5, the left and right actuators 4 and 6 begin to move from "right" to "left". The left actuator 4 replaces the right actuator 6 in the "locomotive"-like pulling effect, dragging the fixed-point shifter 5 and the right actuator 6 toward the predetermined target positions in the left direction one by one. After the fixed-point shifter 5 intermittently repeats multiple forward movements, the left actuator 4 finally reaches the leftmost end of the guide tube 2.

[0107] 10) The lifting plate 80 of the left actuator 4 lifts the left limit switch 8. The sliding switch 3 begins to slide to the right under the elastic force of the springs 57 at both ends. The right directional plate 54 passes the right limit switch 8, and the position of the sliding switch 3 is locked by the right limit switch 8.

[0108] 11) Repeat the process of steps 1) to 10), and the fixed-point shifter 5 and the left driver 4 and the right driver 6 continue to complete the synchronous reciprocating intermittent sliding action to the left or right.

[0109] The above description is only a specific embodiment of the present invention, and the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed by the present invention should be covered by the protection scope of the present invention.

Claims

1. A pneumatically driven fixed-point moving device, characterized in that: It includes a frame, a limit switch, a guide slide tube, a slide direction switcher, a left driver, a fixed point shifter and a right driver; The limit switches are provided on the left and right sides of the frame, the two ends of the guide slide are fixedly connected by support columns, the sliding switch is provided in the guide slide and its two ends are elastically connected to the support columns respectively, and the direction switching of the sliding switch is realized by the limit switches on the left and right sides; The left driver, fixed-point shifter and right driver are all mounted on the guide slide tube. The top of the left driver and the right driver are respectively connected with a reverse thrust tube. The top of the fixed-point shifter is connected with a blow pipe. Both ends of the blow pipe are placed in the reverse thrust tube. A spring is mounted on the reverse thrust tube. One end of the spring is connected to the reverse thrust tube and the other end is connected to the blow pipe. The high-pressure pulse airflow pushes the left driver or the right driver forward through the blow pipe, and the left driver or the right driver drives the fixed-point shifter to move forward intermittently.

2. The pneumatically driven fixed-point moving device according to claim 1, wherein: The limit switch includes a bracket, a guide slide, a limit column A and a limit column B; the top of the bracket is connected to the frame, one end of the limit column A and the limit column B is fixedly connected to the bracket, and the other end passes through the displacement hole opened on the guide slide, and the bottom end of the guide slide is connected to a rotating wheel.

3. The pneumatically driven fixed-point moving device according to claim 1, wherein: The sliding switch includes a left slide, a connecting plate and a right slide connected in sequence; a directional plate is provided on the top of the left slide and the right slide, guide pulleys are symmetrically provided on both sides of the left slide and the right slide, and multiple groups of symmetrically arranged lifters are provided on one side of the connecting plate.

4. The pneumatically driven fixed-point moving device according to claim 3, wherein: The lifter is a wedge-shaped plate, and a sloped driving and lifting slideway is provided on the wedge-shaped plate.

5. The pneumatically driven fixed-point moving device according to claim 1, wherein: The guide slide tube is provided with a limit window hole, a drive stop window hole and a locking buckle clamp rail. The locking buckle clamp rail is arranged on the upper surface of the guide slide tube wall, and the drive stop window holes are symmetrically arranged on both sides of the locking buckle clamp rail.

6. The pneumatically driven fixed-point moving device according to claim 5, wherein: The inner cavity of the guide slide tube is provided with multiple driving gear groups with equal intervals, and each driving gear group includes two driving gears symmetrically arranged on the left and right; the driving gear includes a fixed frame, a baffle, a spring, a guide slide shaft A, a guide slide shaft B and a driving lifting shaft, the fixed frame is fixed on the inner wall of the guide slide tube, one end of the guide slide shaft A and the guide slide shaft B are connected to the fixed frame, and the other end is placed in the guide slide hole opened in the baffle, and the guide slide shaft B is connected to the baffle through a spring; one end of the driving lifting shaft is fixed to the bottom of the baffle, and the other end is placed in the driving and lifting slide of the lifter, and the top of the baffle is located at the driving gear window hole.

7. The pneumatically driven fixed-point moving device according to claim 1, wherein: The left and right drivers have the same structure, including a cylindrical slider, a column and a lifting plate. The cylindrical slider is sleeved on the outer wall of the guide slide tube, the top of the cylindrical slider is connected to the reverse thrust tube through the column, and the lifting plate is horizontally connected to the column.

8. The pneumatically driven fixed-point moving device according to claim 1, wherein: The top of the blowing pipe is connected with an air receiving pipe, and the bottom of the blowing pipe is connected with a driving pipe.

9. The pneumatically driven fixed-point moving device according to claim 8, wherein: A pressure device is provided at the bottom of the driving tube, and a left releaser and a right releaser are respectively provided on both sides of the driving tube. The left releaser and the right releaser are placed on both sides of the fixed-point shifter.

10. A method for operating a pneumatically driven fixed-point moving device according to any one of claims 1 to 9, characterized in that: The following steps are involved: 1) When the fixed-point shifter moves to the right, the high-pressure pulse airflow enters the driving tube through the air receiving tube, and the pressure device moves downward under the push of the high-pressure airflow. The outer ends of the left and right releasers are simultaneously tilted upward, and the fixed-point locking state of the fixed-point shifter is released. The locking buckle passes through the locking buckle clamping rail, and the left and right diagonal braces of the locking buckle are ejected. The locking buckle is confined below the locking buckle clamping rail; 2) At the same time, high-pressure air flows into the left and right blowpipes. Since the left actuator is now limited by the left drive block, it remains in position, while the right actuator moves to the right and passes the left drive block at the next point. 3) The right driver continues to move to the right, and the distance stops of the left and right blowpipes contact and pull with the distance stops of their corresponding left and right reverse thrust pipes. After that, the left driver, the fixed-point shifter, and the right driver become one and slide to the right synchronously. When the kinetic energy of the right driver decreases to zero, the right driver stops moving forward, but under the traction of the spring retraction force, the right driver begins to slide back and is eventually stopped in front of the left driver stop at that point. After that, the right driver remains in place and continues to be pulled by the spring retraction force, while the fixed-point shifter and the left driver continue to move forward. 4) As the fixed-point shifter moves to the right, the locking buckle leaves the locking buckle clamping rail, and the pressure device returns to its original position under the action of the spring restoring force, and the left and right releasers return to a horizontal state; then the fixed-point shifter continues to slide to the next set of drive gears, and the left releaser is stopped by the left drive gear, and the fixed-point shifter stops there; 5) The fixed-point shifter stops moving forward and remains in this position; however, the left drive continues to move forward. When the left drive passes the left drive gear at the next point, the kinetic energy is reduced to zero and stops. 6) The process of steps 1) to 5) is an intermittent forward movement of the fixed-point shifter. The fixed-point shifter intermittently repeats the forward movement of steps 1) to 5) until the right drive reaches the rightmost end of the guide tube. 7) When the right drive reaches the rightmost end, the lifting plate of the right drive lifts the right limit switch. Under the action of the springs at both ends, the sliding switch slides to the left. The left directional plate passes the left limit switch, and the sliding switch is locked by the left limit switch. 8) During the reverse conversion process of the sliding switch, the lifter lifts all the right drive gears upwards and drops all the left drive gears synchronously; 9) At this point, the slide switcher has reversed the direction of travel of the fixed-point shifter and the left and right actuators. The fixed-point shifter and the left and right actuators begin moving from right to left. After the fixed-point shifter intermittently repeats multiple forward movements, the left actuator eventually reaches the leftmost end of the guide tube. 10) The left actuator's lifting plate lifts the left limit switch. The sliding switch begins to slide to the right under the action of the springs at both ends. The right directional plate passes the right limit switch, and the position of the sliding switch is locked by the right limit switch. 11) Repeat steps 1) to 10), and the fixed-point shifter and the left and right actuators continue to perform synchronous, reciprocating, intermittent sliding motions to the left or right.

Images