An intelligent friction-reversing tower pumping unit

Abstract

The present invention relates to the field of pumping units, and particularly to an intelligent friction-reversing tower-type pumping unit. After a roller shaft fails, its speed becomes abnormal, causing the belt to move too fast and resulting in damage to the sucker rod. When the belt breaks, the counterweight loses its support and drops downward, affecting normal use. It includes a speed reduction component, which includes a first fixed frame. The fixed platform is fixedly connected with symmetrically distributed oil injection cylinders. The oil injection cylinders are slidably connected with pistons. One end of the piston is fixedly connected with an L-shaped frame that cooperates with the first fixed frame, and the oil injection cylinders are fixedly connected with oil delivery pipes. When the speed of the transmission shaft becomes abnormal, the transmission shaft is decelerated by the speed reduction component and then braked to prevent the braking component from malfunctioning due to excessive speed. Hydraulic transmission oil is directly sprayed onto the oil baffle through the through holes at the distribution cylinder to enhance the deceleration effect. When the belt breaks or the sucker rod breaks, the counterweight is braked with a buffer margin by the anti-falling component.

Description

Technical Field

[0001] The present invention relates to the technical field of pumping units, and in particular to an intelligent friction reversing tower-type pumping unit. Background Art

[0002] A pumping unit is the most important lifting equipment in the rod pumping system. According to the presence or absence of a walking beam, pumping units are divided into two categories: beam pumping units and beamless pumping units. Among them, the beamless pumping unit is also called a tower-type pumping unit. Compared with the beam pumping unit, it has the characteristics of a large stroke, a small load, energy saving, a small floor area, and steel saving, and has developed rapidly in recent years.

[0003] When the tower-type pumping unit works, the motor arranged on the upper platform drives the roller shaft to cooperate with the counterweight block to control the elongation or shortening of the belt for pumping work. During the use of the belt, it gradually becomes thinner and smoother due to the increase in friction time. It is easy to slip between the belt and the transmission shaft, making it difficult to control the moving speed of the belt. When the roller shaft fails and its speed becomes abnormal, the speed of the roller shaft driving the belt increases, resulting in damage to the sucker rod. When the belt breaks or the sucker rod fails, the counterweight block loses its force and falls, causing danger. Summary of the Invention

[0004] In order to overcome the disadvantages of damage to the sucker rod caused by abnormal movement speed of the belt and damage to the pumping unit by the counterweight block after the belt breaks, the present invention provides an intelligent friction reversing tower-type pumping unit with an emergency braking function.

[0005] Technical solution: An intelligent friction-reversing tower-type pumping unit, comprising a base, a support frame fixedly connected to the base, a fixed platform fixedly connected to the support frame, a control panel fixedly connected to the fixed platform, symmetrically distributed first rotating frames fixedly connected to the fixed platform, a transmission shaft rotatably connected between the first rotating frames, a motor set fixedly connected to the fixed platform and electrically connected to the control panel, an output end of the motor set fixedly connected to the transmission shaft, symmetrically distributed steering frames fixedly connected to the fixed platform, a belt provided at the transmission shaft and the steering frame, one end of the belt fixedly connected to a counterweight block, a multi-stage hydraulic cylinder fixedly connected to the first rotating frame on the side away from the motor set, a deceleration assembly for decelerating and buffering the transmission shaft provided on the fixed platform, the deceleration assembly including a first fixing frame fixedly connected to an end of a second-stage rod of the multi-stage hydraulic cylinder, symmetrically distributed oil injection cylinders fixedly connected to the fixed platform, a piston slidably connected to the oil injection cylinder, an L-shaped frame fixedly connected to one end of the piston and slidably engaged with the first fixing frame, an oil delivery pipe fixedly connected to the oil injection cylinder, an oil storage barrel fixedly connected to the fixed platform and communicated with the oil delivery pipe, a rotating shaft rotatably connected to the oil storage barrel and fixedly connected to the transmission shaft, a first rotating disk fixedly connected to one end of the rotating shaft, a baffle plate circumferentially and equidistantly and symmetrically distributed on the first rotating disk, a ventilation pipe for communicating the inside of the oil storage barrel with the outside fixedly connected to the oil storage barrel, a floating ball provided at a connection portion between the oil storage barrel and the ventilation pipe, a spring provided between the floating ball and the oil storage barrel, a braking assembly for frictionally braking the transmission shaft provided on the rotating shaft, and a pressing assembly for frictionally braking the belt provided on the first rotating frame.

[0006] Preferably, symmetrically distributed convex blocks are slidably connected to the first fixing frame, a spring is provided between the convex blocks and the first fixing frame, and the L-shaped frame is provided with grooves for cooperating with the convex blocks of the first fixing frame.

[0007] Preferably, a distribution cylinder communicated with the oil delivery pipe is fixedly connected to the inside of the oil storage barrel, the distribution cylinder is provided with through holes, and the through holes of the distribution cylinder are inclined in a direction opposite to the rotation direction of the baffle plate.

[0008] Preferably, the baffle plate is provided with through holes, adjacent baffle plates are connected by a spring plate, the first rotating disk is hinged to the adjacent baffle plate, and the spring plate is initially in a bent state.

[0009] Preferably, the oil storage barrel is provided with an extrusion component for increasing the degree of oil fluid chaos. The extrusion component includes a first fixed rod fixedly connected to the end of the second-stage rod of the multi-stage hydraulic cylinder. The first fixed rod is slidably connected with equidistantly distributed first sliding rods. The first sliding rods are slidably connected to the oil storage barrel and the distribution cylinder. The first sliding rods are provided with arc-shaped limiting grooves and vertical limiting grooves. The first fixed rod is fixedly connected with equidistantly distributed second fixing frames. The second fixing frames are rotatably connected with symmetrically distributed rotating blocks. The first fixed rod is fixedly connected with equidistantly distributed fixing blocks. The fixing blocks are provided with first spring blocks which are in limiting cooperation with the arc-shaped limiting grooves at the first sliding rods. One end of the first sliding rod is slidably connected with an annular fixing frame. The annular fixing frame is hinged to the adjacent oil baffle. The oil storage barrel is fixedly connected with equidistantly distributed second fixed rods. The second fixed rods are provided with second spring blocks which are in limiting cooperation with the vertical limiting grooves at the first sliding rods.

[0010] Preferably, the braking component includes a first brake disc fixedly connected to the rotating shaft. The end of the first-stage rod of the multi-stage hydraulic cylinder is fixedly connected with a third fixing frame, and the third fixing frame is fixedly connected with a second brake disc.

[0011] Preferably, the pressing component includes a rotating roller. The two ends of the rotating roller are rotatably connected with sliders. The sliders are slidably connected to the first rotating frame. Springs are arranged between the sliders and the first rotating frame. The rotating roller is in contact with the belt. The first rotating frame is slidably connected with a sliding frame. Springs are arranged between the sliding frame and the first rotating frame. The sliding frame is fixedly connected with an arc-shaped friction block. The sliding frame is fixedly connected with symmetrically distributed limiting rods. The third fixing frame is fixedly connected with a fourth fixing frame. The fourth fixing frame is slidably connected to the first rotating frame. A chute for limiting cooperation with the limiting rods is arranged on the side of the fourth fixing frame away from the third fixing frame.

[0012] Preferably, it further includes a falling prevention component. The falling prevention component includes symmetrically distributed fixing plates fixedly connected to the counterweight. Symmetrically distributed guide rods are fixedly connected between the base and the fixed platform. The guide rods gradually become thicker from top to bottom. The fixing plates are fixedly connected with symmetrically distributed second rotating frames. The second rotating frames are rotatably connected with rollers. The rollers are in contact with the guide rods. Elastic pressing blocks are arranged on the rollers. The elastic pressing blocks at the rollers are in contact with the guide rods. The fixing plates are fixedly connected with symmetrically distributed third rotating frames. The third rotating frames are rotatably connected with transmission gears. The rollers are fixedly connected with a second rotating disk. The second rotating disk is rotatably connected with a transmission tooth ring meshing with the transmission gear. The transmission tooth ring is fixedly connected with circumferentially distributed limiting frames. The second rotating disk is fixedly connected with a third fixing rod. The third fixing rod is fixedly connected with circumferentially distributed fixing sleeves. The fixing sleeves are provided with third spring blocks. The third spring blocks are in contact and cooperation with the limiting frames. The fixing plates are slidably connected with symmetrically distributed second sliding rods. The second sliding rods are fixedly connected with a fifth fixing frame. Both sides of the fifth fixing frame are fixedly connected with racks meshing with the transmission gears. Springs are sleeved on the second sliding rods. The two ends of the springs at the second sliding rods are respectively fixedly connected with the fifth fixing frame and the fixing plates. The fixing plates are slidably connected with symmetrically distributed conical friction blocks. Springs are arranged between the conical friction blocks. The fifth fixing frame is in limiting cooperation with the conical friction blocks.

[0013] Preferably, the fifth fixing frame is provided with symmetrically distributed arc-shaped spring plates, and the arc-shaped spring plates are in limiting cooperation with the conical friction blocks.

[0014] Preferably, it further includes a buffering component for buffering the counterweight. The buffering component includes a partition fence fixedly connected to the base. The base is fixedly connected with equidistantly distributed fourth spring blocks, and the fourth spring blocks are located inside the partition fence.

[0015] In the present invention, the multi-stage hydraulic cylinder contracts inward to inject hydraulic transmission oil into the inside of the distribution cylinder. The distribution cylinder injects hydraulic transmission oil into the inside of the oil storage barrel through the inclined through holes in the clockwise direction, so as to reduce the rotation speed of the oil baffle. The hydraulic transmission oil sprays out from the through holes at the distribution cylinder to the oil baffle to decelerate the oil baffle, enhancing the effect of the hydraulic transmission oil in reducing the speed of the transmission shaft; through the extrusion of the annular fixing frame on the oil baffle, the spring plate deforms, enhancing the degree of chaos of the hydraulic transmission oil flow state and the effect of reducing the speed, so that when the first brake disc contacts the second brake disc, the rotation speed of the first brake disc is slower, reducing the friction degree between the first brake disc and the second brake disc. The belt is decelerated and braked by the friction between the arc-shaped friction block and the rotating roller, preventing the pumping process from being abnormal and accidents from occurring due to excessive speed. After the third spring block is centrifugally thrown out and is in limiting cooperation with the limiting frame, the fifth fixing frame limits the conical friction block, and the conical friction block generates friction with the guide rod to brake the counterweight, preventing the counterweight from falling due to the breakage of the belt or abnormal belt speed. Description of the Drawings

[0016] Figure 1 Schematic diagram of the three-dimensional structure of the present invention.

[0017] Figure 2 Schematic diagram of the positional relationship among the deceleration component, extrusion component, braking component and pressing component of the present invention.

[0018] Figure 3 Schematic diagram of the three-dimensional structure of the pressing component of the present invention.

[0019] Figure 4 Schematic diagram of the connection relationship among the deceleration component, extrusion component and braking component of the present invention.

[0020] Figure 5 Schematic diagram of the three-dimensional structure of the deceleration component and extrusion component of the present invention.

[0021] Figure 6 Schematic diagram of the enlarged three-dimensional structure at position A of the present invention.

[0022] Figure 7 Schematic diagram of the positional relationship between the anti-falling component and the buffer component of the present invention.

[0023] Figure 8 Schematic diagram of the three-dimensional structure of the anti-falling component of the present invention.

[0024] Figure 9 Schematic diagram of the enlarged three-dimensional structure at position B of the present invention.

[0025] In the figure: 1 - base, 2 - support frame, 3 - fixed platform, 4 - control panel, 5 - first rotating frame, 6 - transmission shaft, 7 - motor set, 8 - bogie, 9 - multi-stage hydraulic cylinder, 1001 - first fixing frame, 1002 - L-shaped frame, 1003 - piston, 1004 - oil injection cylinder, 1005 - oil pipeline, 1006 - oil storage barrel, 1007 - distribution barrel, 1008 - rotating shaft, 1009 - first rotating disk, 1010 - oil baffle, 1011 - ventilation pipe, 1012 - float ball, 1101 - first fixing rod, 1102 - first sliding rod, 1103 - second fixing frame, 1104 - rotating block, 1105 - fixing block, 1106 - first spring block, 1107 - annular fixing frame, 1108 - second fixing rod, 1109 - second spring block, 1201 - first brake disc, 1202 - third fixing frame, 1203 - second brake disc, 1301 - rotating roller, 1302 - sliding frame, 1303 - arc friction block, 1304 - limiting rod, 1305 - fourth fixing frame, 1401 - fixing plate, 1402 - guiding rod, 1403 - second rotating frame, 1404 - roller, 1405 - third rotating frame, 1406 - transmission gear, 1407 - second rotating disk, 1408 - transmission gear ring, 1409 - limiting frame, 1410 - third fixing rod, 1411 - fixing sleeve, 1412 - third spring block, 1413 - second sliding rod, 1414 - fifth fixing frame, 1415 - conical friction block, 1416 - arc spring plate, 1501 - isolation fence, 1502 - fourth spring block, 16 - counterweight. Detailed implementation mode

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention. Embodiment 1

[0027] An intelligent friction reversing tower-type oil pumping unit, such as Figure 1 , Figure 2 , Figure 4 and Figure 5As shown in the figure, it includes a base 1. A support frame 2 is fixedly connected to the base 1. A fixed platform 3 is fixedly connected to the upper side of the support frame 2. A control panel 4 is fixedly connected to the fixed platform 3. The fixed platform 3 is fixedly connected with first rotating frames 5 symmetrically distributed left and right. A transmission shaft 6 is rotatably connected between the opposite sides of the first rotating frames 5. The fixed platform 3 is fixedly connected with a motor group 7. The motor group 7 is electrically connected to the control panel 4. The output end of the motor group 7 is fixedly connected to the transmission shaft 6. The fixed platform 3 is fixedly connected with bogies 8 symmetrically distributed front and back. A belt is arranged at the transmission shaft 6 and the bogies 8. The bogies 8 are used to reduce the friction during the movement of the belt. A counterweight 16 is fixedly connected to the rear end of the belt. The right first rotating frame 5 is fixedly connected with a multi-stage hydraulic cylinder 9. The larger movable part in the multi-stage hydraulic cylinder 9 is the first-stage rod, and the smaller movable part in the multi-stage hydraulic cylinder 9 is the second-stage rod. A deceleration component is arranged on the fixed platform 3. The deceleration component is used to decelerate and buffer the transmission shaft 6 to prevent the transmission shaft 6 from having too high a speed and directly braking the transmission shaft 6, causing damage to the transmission shaft 6. The deceleration component includes a first fixing frame 1001. The first fixing frame 1001 is fixedly connected to the right end of the second-stage rod of the multi-stage hydraulic cylinder 9. Convex blocks are slidably connected to both ends of the first fixing frame 1001. Springs are arranged between the convex blocks and the first fixing frame 1001. The fixed platform 3 is fixedly connected with oil injection cylinders 1004 symmetrically distributed front and back. The inside of the oil injection cylinders 1004 is filled with hydraulic transmission oil. A piston 1003 is slidably connected to the inside of the oil injection cylinders 1004. An L-shaped frame 1002 is fixedly connected to the right end of the piston 1003. The L-shaped frame 1002 is provided with two symmetrically distributed grooves on the left and right. The L-shaped frame 1002 is slidably matched with the first fixing frame 1001. The grooves at the L-shaped frame 1002 are in limit fit with the convex blocks at the first fixing frame 1001. An oil delivery pipe 1005 is fixedly connected to the left side of the oil injection cylinder 1004. The oil delivery pipe 1005 is made of a flexible material. The fixed platform 3 is fixedly connected with an oil storage barrel 1006. A distribution barrel 1007 is fixedly connected to the inside of the oil storage barrel 1006. The oil delivery pipe 1005 is communicated with the distribution barrel 1007, and the end of the oil delivery pipe 1005 located inside the distribution barrel 1007 is located at the bottom of the distribution barrel 1007. Through holes are arranged on the left side of the distribution barrel 1007 at circumferentially equally spaced intervals. The through holes of the distribution barrel 1007 are inclined in the clockwise direction. A rotating shaft 1008 is rotatably connected to the oil storage barrel 1006. The rotating shaft 1008 is fixedly connected to the transmission shaft 6. A first rotating disk 1009 is fixedly connected to the right end of the rotating shaft 1008. The first rotating disk 1009 is located inside the oil storage barrel 1006. Oil baffle plates 1010 are arranged on the right side of the first rotating disk 1009 at circumferentially equally spaced and symmetrically distributed intervals. The oil baffle plates 1010 are provided with through holes. Spring plates are arranged between adjacent oil baffle plates 1010. The first rotating disk 1009 is hinged to the adjacent oil baffle plates 1010. The spring plates between adjacent oil baffle plates 1010 are initially in a bent state, which is convenient for the oil baffle plates 1010 to bend and at the same time makes the hydraulic transmission oil chaotic. The opening direction of the through holes of the distribution barrel 1007 is opposite to the rotation direction of the oil baffle plates 1010.The oil storage barrel 1006 is fixedly connected with a ventilation pipe 1011. The ventilation pipe 1011 connects the inside of the oil storage barrel 1006 with the outside. When injecting oil into the inside of the oil storage barrel 1006, a floating ball 1012 is arranged at the connection between the oil storage barrel 1006 and the ventilation pipe 1011. A spring is arranged between the floating ball 1012 and the oil storage barrel 1006, which facilitates ventilation and prevents the leakage of hydraulic transmission oil. The oil storage barrel 1006 is provided with an extrusion assembly, and the extrusion assembly is used to change the shape of the oil baffle 1010 to increase the degree of chaos of the oil liquid in the oil storage barrel 1006. A braking assembly is arranged on the rotating shaft 1008, and the braking assembly brakes the transmission shaft 6 through friction. A pressing assembly is arranged on the first rotating frame 5, and the pressing assembly brakes the belt through friction.,

[0028] As Figure 2 and Figures 4 - 6 shown, the extrusion assembly includes a first fixing rod 1101 fixedly connected to the end of the second-stage rod of the multi-stage hydraulic cylinder 9. The middle and lower parts of the first fixing rod 1101 are respectively slidably connected with a first sliding rod 1102. The first sliding rod 1102 is slidably connected with both the oil storage barrel 1006 and the distribution barrel 1007. The left end of the first sliding rod 1102 is provided with an arc-shaped limiting groove, and the middle part of the first sliding rod 1102 is provided with a vertical limiting groove. The middle and lower parts of the first fixing rod 1101 are respectively fixedly connected with a second fixing frame 1103. The second fixing frame 1103 is rotatably connected with two symmetrically distributed rotating blocks 1104 in the front and back. The middle and lower parts on the right side of the first fixing rod 1101 are respectively fixedly connected with fixing blocks 1105. The fixing blocks 1105 are provided with first spring blocks 1106 that are in limiting cooperation with the arc-shaped limiting groove at the position of the first sliding rod 1102. The left end of the first sliding rod 1102 is slidably connected with an annular fixing frame 1107. The annular fixing frame 1107 is located inside the oil storage barrel 1006, and the annular fixing frame 1107 is hinged to the adjacent oil baffle 1010. Two equidistantly distributed second fixing rods 1108 are fixedly connected to the right side of the oil storage barrel 1006. The second fixing rods 1108 are provided with second spring blocks 1109 that are in limiting cooperation with the vertical limiting groove at the position of the first sliding rod 1102.,

[0029] As Figure 4 shown, the braking assembly includes a first brake disc 1201. The first brake disc 1201 is fixedly connected to the middle of the rotating shaft 1008. The end of the first-stage rod of the multi-stage hydraulic cylinder 9 is fixedly connected with a third fixing frame 1202. The left side of the third fixing frame 1202 is fixedly connected with a second brake disc 1203.,

[0030] As Figure 2 and Figure 3As shown in the figure, the pressing assembly includes a rotating roller 1301. Sliders are rotatably connected to both ends of the rotating roller 1301. The sliders are slidably connected to the first rotating frame 5. Springs are provided between the sliders and the first rotating frame 5. The rotating roller 1301 is always in contact with the belt through the springs between the sliders and the first rotating frame 5. A sliding frame 1302 is slidably connected to the first rotating frame 5. Springs are provided between the sliding frame 1302 and the first rotating frame 5. An arc-shaped friction block 1303 is fixedly connected to the lower side of the sliding frame 1302. The arc-shaped friction block 1303 is used to frictionally decelerate the rotating roller 1301. The sliding frame 1302 is fixedly connected with limiting rods 1304 symmetrically distributed front and back. A fourth fixing frame 1305 slidably connected to the first rotating frame 5 is fixedly connected to the upper side of the third fixing frame 1202. A chute is provided on the left side of the fourth fixing frame 1305. The chute at the fourth fixing frame 1305 is in limiting cooperation with the limiting rods 1304. The distance between the arc-shaped friction block 1303 and the rotating roller 1301 is controlled through the limiting cooperation between the chute and the limiting rods 1304.

[0031] When the rotation speed of the transmission shaft 6 is abnormal, the control panel 4 controls the motor group 7 to shut down. The control panel 4 controls the second-stage rod of the multi-stage hydraulic cylinder 9 to contract inward. The second-stage rod of the multi-stage hydraulic cylinder 9 drives the first fixing frame 1001 to move leftward. At this time, the convex block at the first fixing frame 1001 cooperates with the groove on the right side of the L-shaped frame 1002. The first fixing frame 1001 drives the L-shaped frame 1002 to move leftward synchronously. The L-shaped frame 1002 drives the piston 1003 to slide leftward along the oil injection cylinder 1004, so that the piston 1003 injects the hydraulic transmission oil in the oil injection cylinder 1004 into the interior of the distribution cylinder 1007 through the oil transmission pipe 1005. The hydraulic transmission oil flows into the interior of the oil storage barrel 1006 through the through hole provided on the left side of the distribution cylinder 1007. At this time, the rotation of the transmission shaft 6 drives the rotating shaft 1008 to rotate synchronously. The rotating shaft 1008 drives the first rotating disc 1009 to rotate, and further makes the oil baffle 1010 rotate counterclockwise. By setting the direction of the through hole of the distribution cylinder 1007 to be inclined in the clockwise direction, the outflow direction of the hydraulic transmission oil is opposite to the rotation direction of the oil baffle 1010. Through the impact of the hydraulic transmission oil on the oil baffle 1010, the rotation speed of the transmission shaft 6 is reduced. When the distribution cylinder 1007 injects oil into the interior of the oil storage barrel 1006, the air inside the oil storage barrel 1006 flows out through the air pipe 1011. When the interior of the oil storage barrel 1006 is filled with hydraulic transmission oil, the floating ball 1012 floats upward due to the buoyancy of the liquid level, overcoming the spring force, and blocks the lower port of the air pipe 1011 to prevent the leakage of the hydraulic transmission oil. The viscosity of the hydraulic transmission oil is relatively high. When the interior of the oil storage barrel 1006 is filled with hydraulic transmission oil, the hydraulic transmission oil decelerates the transmission shaft 6 through the oil baffle 1010. Through the openings on the oil baffle 1010, the chaotic state of the hydraulic transmission oil inside the oil storage barrel 1006 is enhanced, improving the deceleration effect of the hydraulic transmission oil on the transmission shaft 6.

[0032] When the second-stage rod of the multi-stage hydraulic cylinder 9 contracts inward, the second-stage rod of the multi-stage hydraulic cylinder 9 drives the first fixed rod 1101 to move leftward. The first fixed rod 1101 drives the second fixed bracket 1103 and the fixed block 1105 to move leftward synchronously. The second fixed bracket 1103 drives the rotating block 1104 to move leftward synchronously. The fixed block 1105 drives the first spring block 1106 to move leftward. At this time, the first spring block 1106 is in a limit fit state with the arc-shaped limit groove of the first sliding rod 1102. The first spring block 1106 drives the first sliding rod 1102 to move leftward. During the process of the first sliding rod 1102 moving leftward, the first sliding rod 1102 pushes the annular fixed bracket 1107 to move leftward. When the annular fixed bracket 1107 moves leftward, it squeezes the oil baffle 1010, causing relative rotation between the first rotating disc 1009 and the adjacent oil baffle 1010. At the same time, relative rotation occurs between the annular fixed bracket 1107 and the adjacent oil baffle 1010. By initially setting the spring plate between the oil baffles 1010 to a bent state, when the annular fixed bracket 1107 squeezes the oil baffle 1010, the shape of the oil baffle 1010 changes in a direction that is convenient for holding the hydraulic transmission oil, improving the resistance effect of the hydraulic transmission oil on the oil baffle 1010 and making the deceleration effect of the transmission shaft 6 better. When the first spring block 1106 drives the first sliding rod 1102 to move leftward, the first sliding rod 1102 loses the limit on the second spring block 1109. The second spring block 1109 pops up upward. The second spring block 1109 is in a limit fit with the vertical limit groove at the first sliding rod 1102. At this time, the first spring block 1106 slides upward and loses the limit on the first sliding rod 1102. The first sliding rod 1102 is in a stationary state due to the limit fit with the second spring block 1109, and the oil baffle 1010 stops bending.

[0033] When the first sliding rod 1102 is stationary, the second-stage rod of the multi-stage hydraulic cylinder 9 continues to contract inward. The first fixed rod 1101 slides along the first sliding rod 1102. The second-stage rod of the multi-stage hydraulic cylinder 9 continues to push the piston 1003 through the L-shaped frame 1002, guiding the hydraulic transmission oil inside the oil injection cylinder 1004 along the oil transmission pipe 1005 into the distribution cylinder 1007 and then into the interior of the oil storage barrel 1006. When the contraction of the second-stage rod of the multi-stage hydraulic cylinder 9 is completed, the piston 1003 completely extrudes the hydraulic transmission oil inside the oil injection cylinder 1004, and the piston 1003 can no longer move leftward.

[0034] When the second-stage rod of the multi-stage hydraulic cylinder 9 is fully retracted, the first-stage rod of the multi-stage hydraulic cylinder 9 starts to retract inward. At this time, the convex block of the first fixing frame 1001 continues to move to the left, and the convex block of the first fixing frame 1001 loses its cooperation with the right-side groove of the L-shaped frame 1002. The second-stage rod of the multi-stage hydraulic cylinder 9 drives the third fixing frame 1202 to move to the left. The third fixing frame 1202 drives the second brake disc 1203 to move to the left, so that the second brake disc 1203 contacts the first brake disc 1201, and the first brake disc 1201 is stopped by friction, causing the transmission shaft 6 to stop rotating. During the process of the second brake disc 1203 moving to the left, the rotating block 1104 contacts the second spring block 1109, and the rotating block 1104 rotates counterclockwise. After the rotating block 1104 moves away from the second spring block 1109, the rotating block 1104 returns to its original position.

[0035] When the third fixing frame 1202 moves to the left, the third fixing frame 1202 drives the fourth fixing frame 1305 to slide leftward along the first rotating frame 5. The chute of the fourth fixing frame 1305 cooperates with the limiting rod 1304, causing the limiting rod 1304 to slide along the chute of the fourth fixing frame 1305. The limiting rod 1304 drives the sliding frame 1302 to slide downward along the first rotating frame 5. The sliding frame 1302 drives the arc-shaped friction block 1303 to slide downward, so that the arc-shaped friction block 1303 contacts the rotating roller 1301. The arc-shaped friction block 1303 and the rotating roller 1301 decelerate and stop the rotating roller 1301 by friction, causing friction between the rotating roller 1301 and the belt, and decelerating the belt. The springs squeeze the sliders at both ends of the rotating roller 1301, so that the rotating roller 1301 is continuously in contact with the belt, adapting to the problem that the belt gradually becomes thinner with the increase of service time. After the transmission shaft 6 is completely stopped, the control panel 4 closes the multi-stage hydraulic cylinder 9.

[0036] After the maintenance staff completes the maintenance of this pumping unit, start the multi-stage hydraulic cylinder 9 through the control panel 4, so that the first-stage rod of the multi-stage hydraulic cylinder 9 extends outwards. The first-stage rod of the multi-stage hydraulic cylinder 9 drives the third fixing frame 1202 to move to the right. The third fixing frame 1202 drives the second brake disc 1203 away from the first brake disc 1201. The third fixing frame 1202 drives the fourth fixing frame 1305 to move to the right, causing the chute at the fourth fixing frame 1305 to move to the right. The limiting rod 1304 gradually moves upwards for resetting. The limiting rod 1304 drives the arc friction block 1303 to move upwards, causing the arc friction block 1303 to lose friction with the rotating roller 1301. When the first-stage rod of the multi-stage hydraulic cylinder 9 extends outwards, the rotating block 1104 moves to the right. The rotating block 1104 contacts the second spring block 1109 and squeezes the second spring block 1109, causing the second spring block 1109 to lose the limit on the first sliding rod 1102. The spring plate at the oil baffle 1010 resets due to its own elasticity. The left oil baffle 1010 rotates relative to the first rotating disc 1009. At the same time, the right oil baffle 1010 rotates relative to the annular fixing frame 1107. The right oil baffle 1010 drives the annular fixing frame 1107 to move to the right. The annular fixing frame 1107 drives the first sliding rod 1102 to move to the right for resetting. After the first-stage rod of the multi-stage hydraulic cylinder 9 completes its extension, the second-stage rod of the multi-stage hydraulic cylinder 9 starts to extend outwards. The second-stage rod of the multi-stage hydraulic cylinder 9 drives the first fixing frame 1001 to move to the right. Through the cooperation of the convex block at the first fixing frame 1001 and the groove on the left side of the L-shaped frame 1002, the L-shaped frame 1002 drives the piston 1003 to move to the right, pumping the hydraulic transmission oil from the inside of the oil storage barrel 1006 and the distribution cylinder 1007 back into the injection cylinder 1004 along the oil delivery pipe 1005. When the piston 1003 moves to the right side of the injection cylinder 1004, the convex block of the first fixing frame 1001 loses cooperation with the groove on the left side of the L-shaped frame 1002. When the second-stage rod of the multi-stage hydraulic cylinder 9 completes its extension, the convex block of the first fixing frame 1001 is in limit cooperation with the groove on the right side of the L-shaped frame 1002. The first spring block 1106 is in limit cooperation with the arc-shaped limit groove on the first sliding rod 1102, completing the reset. Embodiment 2

[0037] Based on Embodiment 1, as Figures 7 - 9As shown in the figure, it further includes a falling prevention component. The falling prevention component includes fixing plates 1401 symmetrically distributed left and right. The fixing plates 1401 are fixedly connected to the counterweight 16. The base 1 is fixedly connected with symmetrically distributed guide rods 1402. The guide rods 1402 are fixedly connected to the fixed platform 3. The guide rods 1402 gradually become thicker from top to bottom. The fixing plates 1401 are fixedly connected with second rotating frames 1403 symmetrically distributed front and back. The second rotating frames 1403 are rotatably connected with rollers 1404. The rollers 1404 are provided with elastic pressing blocks circumferentially and equidistantly distributed. The elastic pressing blocks at the rollers 1404 are always in contact with the guide rods 1402. The fixing plates 1401 are fixedly connected with third rotating frames 1405 symmetrically distributed front and back. The third rotating frames 1405 are rotatably connected with transmission gears 1406. The rollers 1404 are fixedly connected with second rotating discs 1407. The second rotating discs 1407 are rotatably connected with transmission tooth rings 1408. The transmission tooth rings 1408 are meshed with the transmission gears 1406. The inner side of the transmission tooth rings 1408 is fixedly connected with circumferentially distributed limiting frames 1409. The second rotating discs 1407 are fixedly connected with third fixing rods 1410. The third fixing rods 1410 are fixedly connected with circumferentially distributed fixing sleeves 1411. The fixing sleeves 1411 are provided with third spring blocks 1412 in contact and cooperation with the limiting frames 1409. By means of centrifugation, the limiting frames 1409 are in contact and cooperation with the third spring blocks 1412, so that the rollers 1404 drive the transmission tooth rings 1408 to rotate. The fixing plates 1401 are slidably connected with second sliding rods 1413 symmetrically distributed front and back. The lower ends of the second sliding rods 1413 are fixedly connected with fifth fixing frames 1414. Both sides of the fifth fixing frames 1414 are fixedly connected with racks meshed with the transmission gears 1406. The racks at the fifth fixing frames 1414 are slidably matched with the fixing plates 1401. A spring is arranged between the fifth fixing frames 1414 and the fixing plates 1401. The spring is sleeved on the second sliding rods 1413. The fixing plates 1401 are slidably connected with conical friction blocks 1415 symmetrically distributed front and back. A spring is arranged between the conical friction blocks 1415. The fifth fixing frames 1414 are in limiting cooperation with the conical friction blocks 1415 to clamp the guide rods 1402. The fifth fixing frames 1414 are provided with symmetrically distributed arc-shaped spring plates 1416. The arc-shaped spring plates 1416 are in limiting cooperation with the conical friction blocks 1415 to buffer during the process of clamping the guide rods 1402.

[0038] As Figure 7 shown in the figure, it further includes a buffering component. The buffering component is used to buffer the counterweight 16 when the counterweight 16 falls, so as to prevent damage to this pumping unit. The buffering component includes an isolation fence 1501. The isolation fence 1501 is fixedly connected to the base 1 to limit the falling position of the counterweight 16. The base 1 is fixedly connected with equidistantly distributed fourth spring blocks 1502. The fourth spring blocks 1502 are located inside the isolation fence 1501.

[0039] When the moving speed of the belt becomes abnormal or the belt breaks due to the abnormal rotation speed of the transmission shaft 6, the moving speed of the counterweight 16 downward increases. The rotating speed of the roller 1404 that rotates by contacting the guide rod 1402 through the elastic pressing block increases. When the rotating speed of the roller 1404 is large enough, the third spring block 1412 is thrown outwards along the fixed sleeve 1411 due to the centrifugal principle, so that the limiting frame 1409 is in limiting cooperation with the fixed sleeve 1411. The limiting frame 1409 drives the transmission gear ring 1408 to rotate. The transmission gear ring 1408 makes the rack at the fifth fixed frame 1414 move upwards through the transmission gear 1406. The fifth fixed frame 1414 moves upwards, compressing the spring at the second sliding rod 1413. The fifth fixed frame 1414 contacts the conical friction block 1415, so that the conical friction block 1415 contacts the guide rod 1402 and generates friction, braking the counterweight 16. Through the arc spring plate 1416 arranged on the fifth fixed frame 1414 contacting the conical friction block 1415, it cushions the contact and friction between the conical friction block 1415 and the guide rod 1402, preventing the moving speed of the counterweight 16 from being too fast when the conical friction block 1415 rubs against the guide rod 1402 and causing the guide rod 1402 to break.

[0040] After the repair is completed, the transmission shaft 6 is driven to rotate by the motor set 7, and the counterweight 16 is driven to move upwards by the belt, making the roller 1404 rotate in the reverse direction. The roller 1404 drives the third fixed rod 1410 to rotate, the third fixed rod 1410 drives the fixed sleeve 1411 to rotate, and the fixed sleeve 1411 drives the third spring block 1412 to move away from the limiting frame 1409 that is in limiting cooperation with the third spring block 1412. The third spring block 1412 contracts towards the inside of the fixed sleeve 1411 due to its own elasticity. The fifth fixed frame 1414 moves downwards for reset due to the spring at the second sliding rod 1413. The rack at the fifth fixed frame 1414 drives the transmission gear 1406, and the transmission gear 1406 drives the transmission gear ring 1408 to be reset. The fifth fixed frame 1414 moves downwards, releasing the restriction of the arc spring plate 1416 on the conical friction block 1415. The conical friction block 1415 is reset due to the spring between them. By setting the guide rod 1402 to gradually become thicker from top to bottom, when the repair is completed and the counterweight 16 moves upwards, the conical friction block 1415 directly releases the friction with the guide rod 1402, facilitating the overall reset.

[0041] When the remaining distance of the downward slide of the counterweight 16 is too short, resulting in the throwing distance of the third spring block 1412 not being sufficient to make the third spring block 1412 be in limiting cooperation with the limiting frame 1409, the fourth spring block 1502 arranged on the base 1 cushions the counterweight 16, and the isolation fence 1501 prevents the counterweight 16 from falling to other positions, protecting this pumping unit and the staff.

[0042] Although the present invention has been described in detail with reference to the above embodiments, it will be apparent to those skilled in the art from this disclosure that various changes or modifications can be made to the present invention without departing from the principles and spirit of the invention as defined by the claims. Therefore, the detailed description of the embodiments of this disclosure is only for explanation and not for limiting the present invention, but the scope of protection is defined by the content of the claims.

Claims

1. An intelligent friction-reversing tower-type pumping unit, comprising a base (1), the base (1) is fixedly connected with a support frame (2), the support frame (2) is fixedly connected with a fixed platform (3), the fixed platform (3) is fixedly connected with a control panel (4), the fixed platform (3) is fixedly connected with symmetrically distributed first rotating frames (5), a transmission shaft (6) is rotatably connected between the first rotating frames (5), the fixed platform (3) is fixedly connected with a motor set (7) electrically connected to the control panel (4), the output end of the motor set (7) is fixedly connected to the transmission shaft (6), the fixed platform (3) is fixedly connected with symmetrically distributed steering frames (8), a belt is arranged at the transmission shaft (6) and the steering frames (8), one end of the belt is fixedly connected with a counterweight (16), the first rotating frame (5) on the side far from the motor set (7) is fixedly connected with a multi-stage hydraulic cylinder (9), and the characteristics are as follows: It includes a deceleration component for decelerating and buffering the transmission shaft (6). The deceleration component is arranged on the fixed platform (3). The deceleration component includes a first fixing frame (1001) fixedly connected to the end of the second-stage rod of the multi-stage hydraulic cylinder (9). The fixed platform (3) is fixedly connected with symmetrically distributed oil injection cylinders (1004). The oil injection cylinder (1004) is slidably connected with a piston (1003). One end of the piston (1003) is fixedly connected with an L-shaped frame (1002) that is slidably matched with the first fixing frame (1001). The oil injection cylinder (1004) is fixedly connected with an oil delivery pipe (1005). The fixed platform (3) is fixedly connected with an oil storage barrel (1006) that is communicated with the oil delivery pipe (1005). The oil storage barrel (1006) is rotatably connected with a rotating shaft (1008) fixedly connected to the transmission shaft (6). One end of the rotating shaft (1008) is fixedly connected with a first rotating disc (1009). The first rotating disc (1009) is provided with circumferentially equidistant and symmetrically distributed oil baffle plates (1010). The oil storage barrel (1006) is fixedly connected with a ventilation pipe (1011) that communicates its interior with the outside. A floating ball (1012) is arranged at the connection of the oil storage barrel (1006) and the ventilation pipe (1011). A spring is arranged between the floating ball (1012) and the oil storage barrel (1006). The oil storage barrel (1006) is provided with an extrusion component for increasing the degree of oil fluid chaos. The rotating shaft (1008) is provided with a braking component for frictionally braking the transmission shaft (6). The first rotating frame (5) is provided with a pressing component for frictionally braking the belt; The first fixing frame (1001) is slidably connected with symmetrically distributed convex blocks. A spring is arranged between the convex blocks and the first fixing frame (1001). The L-shaped frame (1002) is provided with grooves that cooperate with the convex blocks of the first fixing frame (1001); The interior of the oil storage barrel (1006) is fixedly connected with a distribution barrel (1007) that is communicated with the oil delivery pipe (1005). The distribution barrel (1007) is provided with through holes. The through holes of the distribution barrel (1007) are inclined in the direction opposite to the rotation direction of the oil baffle plate (1010); The oil baffle plate (1010) is provided with through holes. Adjacent oil baffle plates (1010) are connected by spring plates. The first rotating disc (1009) is hinged to the adjacent oil baffle plates (1010). The spring plates are initially in a bent state; The extrusion assembly includes a first fixing rod (1101), the first fixing rod (1101) is fixedly connected to the end of the second-stage rod of the multi-stage hydraulic cylinder (9), the first fixing rod (1101) is slidably connected with equidistantly distributed first sliding rods (1102), the first sliding rods (1102) are slidably connected with the oil storage barrel (1006), the first sliding rods (1102) are slidably connected with the distribution cylinder (1007), the first sliding rods (1102) are provided with arc-shaped limiting grooves and vertical limiting grooves, the first fixing rod (1101) is fixedly connected with equidistantly distributed second fixing frames (1103), the second fixing frames (1103) are rotatably connected with symmetrically distributed rotating blocks (1104), the first fixing rod (1101) is fixedly connected with equidistantly distributed fixing blocks (1105), the fixing blocks (1105) are provided with first spring blocks (1106), the first spring blocks (1106) are in limiting cooperation with the arc-shaped limiting grooves at the first sliding rods (1102), one end of the first sliding rods (1102) is slidably connected with an annular fixing frame (1107), the annular fixing frame (1107) is hinged to the adjacent oil baffle (1010), the oil storage barrel (1006) is fixedly connected with equidistantly distributed second fixing rods (1108), the second fixing rods (1108) are provided with second spring blocks (1109), the second spring blocks (1109) are in limiting cooperation with the vertical limiting grooves at the first sliding rods (1102); The braking and stopping assembly includes a first brake disc (1201) fixedly connected to the rotating shaft (1008), the end of the first-stage rod of the multi-stage hydraulic cylinder (9) is fixedly connected with a third fixing frame (1202), and the third fixing frame (1202) is fixedly connected with a second brake disc (1203).

2. The intelligent friction reversing tower-type pumping unit according to claim 1, characterized in that, The pressing assembly includes a rotating roller (1301), both ends of the rotating roller (1301) are rotatably connected with sliders, the sliders are slidably connected to the first rotating frame (5), a spring is arranged between the sliders and the first rotating frame (5), the rotating roller (1301) is in contact with the belt, the first rotating frame (5) is slidably connected with a sliding frame (1302), a spring is arranged between the sliding frame (1302) and the first rotating frame (5), the sliding frame (1302) is fixedly connected with an arc-shaped friction block (1303), the sliding frame (1302) is fixedly connected with symmetrically distributed limiting rods (1304), the third fixing frame (1202) is fixedly connected with a fourth fixing frame (1305), the fourth fixing frame (1305) is slidably connected with the first rotating frame (5), and a chute for limiting cooperation with the limiting rods (1304) is arranged on the side of the fourth fixing frame (1305) away from the third fixing frame (1202).

3. The intelligent friction reversing tower-type pumping unit according to claim 1, wherein It further includes an anti-falling component, which includes symmetrically distributed fixing plates (1401). The fixing plates (1401) are fixedly connected to the counterweight (16). Symmetrically distributed guide rods (1402) are fixedly connected between the base (1) and the fixed platform (3). The guide rods (1402) gradually become thicker from top to bottom. The fixing plates (1401) are fixedly connected with symmetrically distributed second rotating frames (1403). The second rotating frames (1403) are rotatably connected with rollers (1404). The rollers (1404) are in contact with the guide rods (1402). Elastic pressing blocks are arranged on the rollers (1404). The elastic pressing blocks at the rollers (1404) are in contact with the guide rods (1402). The fixing plates (1401) are fixedly connected with symmetrically distributed third rotating frames (1405). The third rotating frames (1405) are rotatably connected with transmission gears (1406). The rollers (1404) are fixedly connected with second rotating disks (1407). The second rotating disks (1407) are rotatably connected with transmission tooth rings (1408) that mesh with the transmission gears (1406). The transmission tooth rings (1408) are fixedly connected with circumferentially distributed limiting frames (1409). The second rotating disks (1407) are fixedly connected with third fixing rods (1410). The third fixing rods (1410) are fixedly connected with circumferentially distributed fixing sleeves (1411). The fixing sleeves (1411) are provided with third spring blocks (1412). The third spring blocks (1412) are in contact and cooperation with the limiting frames (1409). The fixing plates (1401) are slidably connected with symmetrically distributed second sliding rods (1413). The second sliding rods (1413) are fixedly connected with fifth fixing frames (1414). Rack teeth that mesh with the transmission gears (1406) are fixedly connected to both sides of the fifth fixing frames (1414). Springs are sleeved on the second sliding rods (1413). The two ends of the springs at the second sliding rods (1413) are respectively fixedly connected with the fifth fixing frames (1414) and the fixing plates (1401). The fixing plates (1401) are slidably connected with symmetrically distributed conical friction blocks (1415). Springs are arranged between the conical friction blocks (1415). The fifth fixing frames (1414) are in limiting cooperation with the conical friction blocks (1415).

4. The intelligent friction reversing tower pumping unit according to claim 3, wherein, The fifth fixing frames (1414) are provided with symmetrically distributed arc-shaped spring plates (1416). The arc-shaped spring plates (1416) are in limiting cooperation with the conical friction blocks (1415).

5. The intelligent friction reversing tower-type pumping unit according to claim 1, characterized in that, It further includes a buffering component for buffering the counterweight (16). The buffering component includes a partition fence (1501) fixedly connected to the base (1). The base (1) is fixedly connected with equidistantly distributed fourth spring blocks (1502). The fourth spring blocks (1502) are located inside the partition fence (1501).

Images