Disassembling and assembling table suitable for rotary sealing assembly

Abstract

The invention relates to the technical field of petroleum drilling and production machinery assembly and maintenance tools, in particular to a disassembly and assembly table suitable for a rotary seal assembly, which comprises a main body frame, a suspension mechanism and a first disassembly and assembly station, and the first disassembly and assembly station comprises a first clamping turnover mechanism and a first thrust mechanism; the suspension mechanism is used for hoisting the rotary sealing assembly, the first clamping and overturning mechanism comprises a first clamping mechanism and a first overturning mechanism, and the first clamping mechanism is overturned through the first overturning mechanism; the first thrust mechanism is used for applying downward pressure or upward pulling force to the rotary sealing assembly; the first clamping assembly comprises a rack and gear transmission mechanism, a clamping jaw is fixedly arranged on a gear and used for clamping the rotary sealing assembly, and the clamping jaw extends out of the first clamping body or retracts into the first clamping body along with rotation of the gear. The first thrust mechanism is used for rotating the sealing assembly for mounting and dismounting; and meanwhile, the clamping jaw in the first clamping assembly retracts into the first clamping body when not working, so that the operation is very convenient.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of oil drilling machinery assembly and maintenance tools, and particularly relates to a dismounting table suitable for a rotary sealing assembly. BACKGROUND

[0002] The rotary control head is a key equipment for pressure control drilling, and its main function is to guide the safe flow of the pressurized drilling fluid out of the wellbore, and to realize the sealing between the drilling tool and the annulus of the wellbore. The rotary sealing assembly is the core component of the rotary control head, which works in a high-temperature environment, bears the upward force of the pressurized drilling fluid, and rotates with the drill string, and the working condition is harsh. In order to ensure the safety of drilling, the rotary sealing assembly needs to be maintained regularly. The assembly quality of the rotary sealing assembly has a decisive influence on the performance of the whole rotary control head.

[0003] The rotary sealing assembly has a large number of parts and high assembly requirements. Due to the structural characteristics, the rotary sealing assembly needs to be turned over many times, and the use of the crane needs to be assisted by manual laying and pulling, which is time-consuming and laborious, and the parts are easy to be damaged. The rotary sealing assembly is heavy, and manual overturning has safety hazards. The dynamic seal and the bearing are the core parts of the rotary sealing assembly. The dynamic seal is installed in the end cover. Due to the influence of the sealing interference amount of the dynamic seal, the assembly and disassembly process of the end cover is extremely laborious. If the knocking method is used, the dynamic seal is easy to be damaged, thereby affecting the sealing effect and the service life of the whole machine. Since the bearing and the mandrel are in interference fit, a press is generally used for disassembly and assembly, but the installation and disassembly efficiency is low. SUMMARY

[0004] The application provides a dismounting table suitable for a rotary sealing assembly, so as to solve the technical problems of low operation efficiency and difficult operation in the existing assembly and maintenance operation.

[0005] The technical solution of the application for solving the above technical problems is as follows: A dismounting table suitable for a rotary sealing assembly, comprising a main frame, a suspension mechanism and a first dismounting station, the first dismounting station comprising a first clamping and overturning mechanism and a first thrust mechanism; The suspension mechanism comprises a main stand and a lifting arm, one end of the main stand is vertically rotatably connected with the main frame, the first end of the lifting arm is connected with the other end of the main stand, and the other end of the lifting arm can extend above the first clamping and overturning mechanism; The first clamping and overturning mechanism comprises a first clamping mechanism and a first overturning mechanism, the first overturning mechanism is arranged on one side of the main frame, the first clamping mechanism is used for clamping the rotary sealing assembly and extending outward of the main frame, and the first clamping mechanism is overturned through the first overturning mechanism; The first thrust mechanism is fixedly connected with the main frame through a side stand column and is used for applying downward pressure or upward tension to the rotary sealing assembly; The first clamping mechanism comprises a first clamping body located below the first thrust mechanism, wherein the first clamping body has a first opening for the rotary sealing assembly to pass through, and a first clamping assembly for clamping the rotary sealing assembly is arranged on the circumference of the first clamping body. The first clamping assembly comprises a rack and pinion transmission mechanism, wherein the rack and pinion transmission mechanism comprises a gear and a rack, a pawl is fixedly arranged on the gear, the pawl is used for clamping the rotary sealing assembly, the rack is in transmission connection with a driving mechanism, and the pawl is extended out of the first clamping body or retracted into the first clamping body along with the rotation of the gear.

[0006] The working principle and beneficial effects of the present application are as follows: the rotary sealing assembly is hoisted to the first clamping body of the first dismounting station by the suspension mechanism on the dismounting table, then the rotary sealing assembly is clamped on the first clamping body by the first clamping assembly, and the rotary sealing assembly is installed and dismounted by applying downward pressure or upward tension by the first thrust mechanism; meanwhile, the first turnover mechanism is arranged to facilitate the turnover and position adjustment of the rotary sealing assembly, and the operation is convenient. The first clamping assembly adopts the rack and pinion transmission mechanism, the pawl is retracted into the first clamping body when not working, and the clamping of the rotary sealing assembly is very convenient.

[0007] On the basis of the above technical scheme, the present application can be further improved as follows.

[0008] Further, the gear comprises a first gear, a second gear, a third gear and a fourth gear, the rack comprises a first rack and a second rack, the first gear and the second gear are in transmission connection with the first rack, the third gear and the fourth gear are in transmission connection with the second rack, a pawl is fixedly arranged on each gear, and the pawl moves out of the first clamping body or retracts into the first clamping body along with the rotation of the gear.

[0009] The beneficial effects of the above further scheme are as follows: the pawls on the two gears are guaranteed to move synchronously by transmission connection of the same rack and two gears.

[0010] On the basis of the above technical scheme, the present application can be further improved as follows.

[0011] Further, one end of the pawl used for clamping the rotary sealing assembly is a clamping end, a guide inclined surface is arranged on one side of the clamping end in the extending direction, and an abutting surface abutting against the outside of the rotary sealing assembly is arranged on the other side of the clamping end.

[0012] The beneficial effect of the further scheme is that the guide slope is arranged to ensure that the claw can be effectively rotated to the abutting surface of the claw and reliably abut the outer side of the rotary sealing assembly.

[0013] Based on the above technical scheme, the application can be further improved as follows.

[0014] Further, a plurality of the claws are arranged in the circumferential direction of the first clamping body.

[0015] The beneficial effect of the further scheme is that the circumferential arrangement ensures the reliability of the abutting clamping.

[0016] Based on the above technical scheme, the application can be further improved as follows.

[0017] Further, the driving mechanism is a double worm gear driving mechanism, including two groups of worm gears, and two worm gears are fixedly connected at one end, the center of the worm gear is internally threaded, the end of the rack is externally threaded, and the internally threaded worm gear drives the externally threaded rack to move linearly.

[0018] The beneficial effect of the further scheme is that the worm gear driving mechanism has a self-locking output characteristic, which can ensure that the claw clamping maintains an effective clamping force, the two worm gears are fixedly connected, the driving worm gear rotates synchronously, ensures the consistency of the claw action, and has a self-centering clamping function.

[0019] Based on the above technical scheme, the application can be further improved as follows.

[0020] Further, the first overturning mechanism includes a first chassis, a first stand, a first speed reducer, and a first overturning shaft, the first chassis is fixedly arranged on the main body frame, the first stand is arranged on the first chassis, the first speed reducer and the first overturning shaft are arranged on the first stand, the output end of the first speed reducer is fixedly connected with the first overturning shaft, and the first overturning shaft is fixedly connected with the first clamping mechanism.

[0021] The beneficial effect of the further scheme is that the first overturning mechanism is arranged to facilitate the disassembly and installation operation of the rotary sealing assembly.

[0022] Based on the above technical scheme, the application can be further improved as follows.

[0023] Further, the first thrust mechanism includes a thrust cantilever, a rotary shaft, a thrust screw, and a connecting disc, one end of the thrust cantilever is rotationally connected with the side stand through the rotary shaft, the other end of the thrust cantilever is drivingly connected with one end of the thrust screw, and the other end of the thrust screw is fixedly connected with the connecting disc.

[0024] The beneficial effect of the above further scheme is that when the rotary sealing assembly is fixed on the first clamping body, the rotary sealing assembly is disassembled and assembled by the up-down movement of the push rod and the connecting disc.

[0025] Based on the above technical scheme, the application can be further improved as follows.

[0026] Further, the first disassembly and assembly station is two, and the two first disassembly and assembly stations are respectively located on the two sides of the main frame.

[0027] The beneficial effect of the above further scheme is that two first disassembly and assembly stations are provided, and the disassembly and assembly operations can be carried out simultaneously, thereby improving the efficiency.

[0028] Based on the above technical scheme, the application can be further improved as follows.

[0029] Further, the second disassembly and assembly station further comprises a second clamping and overturning mechanism and a second push mechanism. The main frame is provided with a platform and the second push mechanism. The second clamping and overturning mechanism comprises a second clamping mechanism and a second overturning mechanism, the second overturning mechanism is fixedly connected with the main frame, the second clamping mechanism is used for clamping the rotary sealing assembly and extending to the side of the platform, and the second clamping mechanism is overturned through the second overturning mechanism. The second push mechanism comprises a push rod and a driving mechanism, the driving mechanism is arranged below the platform, one end of the push rod is in transmission connection with the driving mechanism, and the other end of the push rod penetrates through the platform. The other end of the hanging arm of the suspension mechanism can extend above the platform.

[0030] The beneficial effect of the above further scheme is that the platform is arranged on the main frame, and the second push mechanism is arranged below the platform, so that the second push mechanism can realize a larger push force, thereby completing the disassembly and assembly of bearings requiring a larger push force, and various functional components are reasonably arranged, and the whole machine is more compact.

[0031] Based on the above technical scheme, the application can be further improved as follows.

[0032] Further, the platform is further provided with a portal mechanism, and the portal mechanism is used for arranging a pressing block matched with the upper part of the rotary sealing assembly.

[0033] The beneficial effect of the further scheme is that the gantry mechanism and the pressing block are arranged, the rotating sealing assembly is pressed by the pressing block, the large thrust for disassembling and assembling the bearing and the requirement of different stations are met, and the reliability of disassembling and assembling the rotating sealing assembly is further improved.

[0034] Based on the technical scheme, the application can be further improved as follows.

[0035] Further, the gantry mechanism is in sliding connection with the platform.

[0036] The beneficial effect of the further scheme is that the gantry mechanism is in sliding connection with the platform, and the rotating sealing assembly is placed on the platform.

[0037] Based on the technical scheme, the application can be further improved as follows.

[0038] Further, the second clamping mechanism comprises a second clamping body, the second clamping body is located above the platform, and a plurality of second clamping assemblies for clamping the rotating sealing assembly are arranged on the circumference of the second clamping body.

[0039] The beneficial effect of the further scheme is that the rotating sealing assembly is clamped by the second clamping assembly, and the falling of the parts during the instant disassembly of the bearing is avoided.

[0040] Based on the technical scheme, the application can be further improved as follows.

[0041] Further, the second clamping assembly comprises a second screw rod and a second handle, the second screw rod is in threaded rotationally combined connection with the second clamping body, the second handle is arranged at one end of the second screw rod, and the other end of the second screw rod is used for abutting against the rotating sealing assembly.

[0042] The beneficial effect of the further scheme is that the handle and the screw rod are connected in a simple and convenient manner.

[0043] Based on the technical scheme, the application can be further improved as follows.

[0044] Further, the second turnover mechanism comprises a second bottom plate, a second stand, a second speed reducer and a second turnover shaft, the second bottom plate is fixedly arranged on the main body frame, the second stand is arranged on the second bottom plate, the second speed reducer and the second turnover shaft are arranged on the second stand, the output end of the second speed reducer is fixedly connected with the second turnover shaft, and the second turnover shaft is fixedly connected with the second clamping body.

[0045] The beneficial effect of the further scheme is that the second turnover mechanism is arranged, and the disassembly and assembly operations of the rotating sealing assembly are facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0046] Figure 1 is a perspective view of the disassembly and assembly table of the present application; Figure 1 ; Figure 2 is a perspective view of the disassembly and assembly table of the present application; Figure 2 ; Figure 3 is a view of the disassembly and assembly table of the present application in one direction; Figure 4 is a perspective view of the first clamping and turning mechanism of the disassembly and assembly table of the present application; Figure 5 is a bottom view of Figure 4 ; Figure 6 is a view of the first clamping and turning mechanism of Figure 4 in one direction; Figure 7 is a partial view of the mechanism of the contact between the clamping jaw and the rotary sealing assembly of the first embodiment; Figure 8 is a view of the end structure of the clamping jaw; Figure 9 is a view of the hoisting of the rotary sealing assembly to the first disassembly and assembly station; Figure 10 is a view of the disassembly of the coffee cup and the rubber core; Figure 11 is a view of the disassembly of the end cover in one state; Figure 12 is a view of the disassembly of the end cover in another state; Figure 13 is a view of the disassembly of the bearing; Figure 14 is a sectional view of the disassembly of the bearing; Figure 15 is a sectional view of the installation of the bearing; Figure 16 is a partial sectional view of the installation of the bearing.

[0047] In the drawings, the components represented by the respective reference numerals are listed as follows: 1, main frame, 12, platform, 13, pedal, 2, suspension mechanism, 21, main column, 22, boom, 23, electric hoist, 24, hook, 3, first clamping and turning mechanism, 31, first clamping mechanism, 311, first clamping body, 312, first gear, 313, second gear, 314, third gear, 315, fourth gear, 316, first rack, 317, second rack, 318, worm gear, 319, worm, 320, coupling, 321, claw, 322, guide slope, 323, abutment surface, 33, first turning mechanism, 331, first chassis, 332, first column, 333, first speed reducer, 334, first turning shaft, 4, first thrust mechanism, 41, thrust boom, 42, rotary shaft, 43, thrust screw, 44, connecting disc, 45, side column, 5, second clamping and turning mechanism, 51, second clamping mechanism, 511, second clamping body, 512, second screw, 513, second handle, 52, second turning mechanism, 521, second chassis, 522, second column, 523, second speed reducer, 524, second turning shaft, 6, second thrust mechanism, 61, push rod, 62, drive mechanism, 7, portal mechanism, 71, pressing block, 72, lifting screw, 8, rotary sealing assembly, 81, shell, 82, coffee cup, 83, rubber core, 84, end cover, 85, bearing, 86, mandrel, 87, rubber core connecting disc. DETAILED DESCRIPTION

[0048] The principles and features of the present application are described below in conjunction with the accompanying drawings, which are only used to explain the present application and not to limit the scope of the present application.

[0049] The embodiment one of the present application provides a structure of dismounting table suitable for rotary sealing assembly Figures 1 to 8 , comprising main frame 1, suspension mechanism 2 and first dismounting station, the first dismounting station comprising first clamping and turning mechanism 3 and first thrust mechanism 4. Wherein the main frame 1 plays a supporting role for the whole first dismounting station, and all other mechanisms and devices are arranged on the main frame 1.

[0050] The suspension mechanism 2 comprises a main column 21 and a boom 22, one end of the main column 21 is connected with the main frame 1 in vertical rotation, the first end of the boom 22 is connected with the other end of the main column 21, and the other end of the boom 22 can be extended above the first clamping and turning mechanism 3. Specifically, the main column 21 can rotate on the main frame 1, the boom 22 is provided with a sliding rail, the electric hoist 23 can move on the sliding rail, the electric hoist 23 is provided with a hook 24 and a lifting rope for lifting and transferring the rotary sealing assembly 8.

[0051] The first clamping and overturning mechanism 3 comprises a first clamping mechanism 31 and a first overturning mechanism 33, the first overturning mechanism 33 is arranged on one side of the main body frame 1, the first clamping mechanism 31 is used for clamping the rotary sealing assembly 8 and extending to the outside of the main body frame 1, and the first clamping mechanism 31 is overturned through the first overturning mechanism 33.

[0052] The first thrust mechanism 4 is used for applying downward pressure or upward tension to the rotary sealing assembly 8, and the first thrust mechanism 4 is fixedly connected with the main body frame 1 through the side column 45.

[0053] The first clamping mechanism 31 comprises a first clamping body 311, the first clamping body 311 is located below the first thrust mechanism 4, the first clamping body 311 has a first opening for the rotary sealing assembly 8 to pass through, and a first clamping assembly for clamping the rotary sealing assembly 8 is arranged on the circumference of the first clamping body 311.

[0054] The first clamping assembly comprises a rack and pinion transmission mechanism, the rack and pinion transmission mechanism comprises a gear and a rack, a pawl 321 is fixedly arranged on the gear, the pawl 321 is used for clamping the rotary sealing assembly 8, the rack is in transmission connection with the driving mechanism 62, and the pawl 321 is extended out of the first clamping body 311 or retracted into the first clamping body 311 by rotating the gear.

[0055] Through the dismounting table in the embodiment, the rotary sealing assembly 8 is hoisted to the first clamping body 311 of the first dismounting station through the suspension mechanism 2 on the dismounting table, then the rotary sealing assembly 8 is clamped on the first clamping body 311 through the first clamping assembly, and the rotary sealing assembly 8 is installed and dismounted by applying downward pressure or upward tension through the first thrust mechanism 4; meanwhile, the first overturning mechanism 33 is arranged, so that the rotary sealing assembly 8 is overturned and position-adjusted conveniently, and the operation is facilitated. The first clamping assembly adopts the rack and pinion transmission mechanism, the pawl 321 is retracted into the first clamping body 311 when not working, and the rotary sealing assembly 8 is clamped and released very conveniently.

[0056] Specifically, the first overturning mechanism 33 comprises a first base plate 331, a first vertical column 332, a first speed reducer 333 and a first overturning shaft 334. The first base plate 331 is fixedly arranged on the main body frame 1. The first vertical column 332 is arranged on the first base plate 331. The first speed reducer 333 and the first overturning shaft 334 are arranged on the first vertical column 332. The output end of the first speed reducer 333 is fixedly connected with the first overturning shaft 334. The first overturning shaft 334 is fixedly connected with the first clamping mechanism 31. The speed reducer in the embodiment is a worm and gear speed reducer. The worm is the output end of the first speed reducer 333 and is fixedly connected with the first overturning shaft 334. The worm gear is provided with a rotating hand wheel. The first overturning mechanism 33 can be overturned at any angle. The self-locking output characteristic of the worm and gear enables the rotary sealing assembly 8 to be kept at any angle.

[0057] Specifically, as shown in Figure 5 , the gear comprises a first gear 312, a second gear 313, a third gear 314 and a fourth gear 315. The rack comprises a first rack 316 and a second rack 317. The first gear 312 and the second gear 313 are in transmission connection with the first rack 316. The third gear 314 and the fourth gear 315 are in transmission connection with the second rack 317. Each gear is fixedly provided with a pawl 321. The pawl 321 moves outwards from the first clamping body 311 or moves back into the first clamping body 311 in the same direction with the gear rotating. The first gear 312 and the third gear 314 are close to the first opening. The second gear 313 and the fourth gear 315 are away from the first opening. The first rack 316 and the second rack 317 are fixedly arranged on the first clamping body 311. The rotating direction of each pawl 321 is from the direction away from the first opening to the direction close to the first opening. As shown in Figure 4 , the driving mechanism of the pawl 321 is a worm and gear mechanism. The worm 319 can be powered by a hand wheel or other structures. The transmission chain is worm 319→worm gear 318→rack 316 and rack 317→gear 312, gear 313, gear 314, gear 315 in turn, thereby driving the four pawls to move synchronously. The center of the worm gear 318 is internally threaded. The end of the rack is externally threaded. The internally threaded worm gear 318 drives the externally threaded rack to move linearly. The two worms 319 are connected by a shaft coupling 320 to realize synchronous rotation. For the specific position of the pawl 321, the two pawls 321 close to the first opening are located outside the center line of the clamped rotary sealing assembly 8, thereby ensuring the reliability of clamping.

[0058] As shown in Figure 7 and Figure 8As shown, the clamping jaw 321 is used to clamp one end of the rotary sealing assembly 8 as the clamping end, and the clamping end is provided with a guide inclined surface 322 on one side in the extending direction, and is provided with an abutting surface 323 abutting with the outer side of the rotary sealing assembly 8 on the other side. Since the extending direction of each clamping jaw 321 is turned from the direction away from the first opening to the direction close to the first opening, the guide inclined surface 322 is arranged in the direction close to the first opening, and the abutting surface 323 is arranged in the direction away from the first opening. Regarding the guide inclined surface 322, its main purpose is to ensure that the clamping jaw 321 can be turned to the appropriate position to achieve reliable clamping of the abutting surface 323 with the rotary sealing assembly 8, and the degree of inclination is only required to be greater than the turnable space. The abutting surface 323 is used to clamp the rotary sealing assembly 8, that is, after the abutting surface 323 abuts and clamps with the outer side of the rotary sealing assembly 8, the clamping jaw 321 cannot be turned in the direction of the first opening.

[0059] As shown in the figure, Figure 4 The first thrust mechanism 4 includes a thrust cantilever 41, a swivel shaft 42, a thrust screw rod 43, and a connecting disc 44. One end of the thrust cantilever 41 is rotationally connected with a side upright column 45 through the swivel shaft 42, the other end of the thrust cantilever 41 is in transmission connection with one end of the thrust screw rod 43, and the other end of the thrust screw rod 43 is rotationally connected with the connecting disc 44. In this embodiment, the side upright column 45 and the first upright column 332 are an integral mechanism and are directly arranged on the main body frame 1. A through hole is arranged on the connecting disc 44, and through the through hole, the connecting disc 44 can be connected with the end cover 84 of the rotary sealing assembly 8 by a screw. By rotating the handle on the thrust screw rod 43, the connecting disc 44 is moved up and down to facilitate the installation and disassembly of the end cover 84.

[0060] As shown in the figure, Figure 1 The first disassembly and assembly station is two, and the two first disassembly and assembly stations are respectively located on the two sides of the main body frame 1. The disassembly and assembly of the rotary sealing assembly 8 can be simultaneously carried out on the two stations.

[0061] As shown in the figure, Figures 1 to 3 The second disassembly and assembly station is located between the two first disassembly and assembly stations, and the second disassembly and assembly station includes a second clamping and overturning mechanism 5 and a second thrust mechanism 6.

[0062] The main body frame 1 is provided with a platform 12 and the second thrust mechanism 6.

[0063] The second clamping and overturning mechanism 5 includes a second clamping mechanism 51 and a second overturning mechanism 52. The second overturning mechanism 52 is fixedly connected with the main body frame 1, and the second clamping mechanism 51 is used to clamp the rotary sealing assembly 8 and extend to one side of the platform 12. The second clamping mechanism 51 is overturned through the second overturning mechanism 52.

[0064] The second overturning mechanism 52 comprises a second base plate 521, a second stand 522, a second speed reducer 523 and a second overturning shaft 524, the second base plate 521 is fixedly arranged on the main body frame 1, the second stand 522 is arranged on the second base plate 521, the second base plate 521 and the platform 12 are arranged in an integrated structure, the second speed reducer 523 and the second overturning shaft 524 are arranged on the second stand 522, the output end of the second speed reducer 523 is fixedly connected with the second overturning shaft 524, and the second overturning shaft 524 is fixedly connected with the second clamping body 511.

[0065] The second thrust mechanism 6 comprises a push rod 61 and a driving mechanism 62, the driving mechanism 62 is arranged below the platform 12, one end of the push rod 61 is in transmission connection with the driving mechanism 62, and the other end of the push rod 61 penetrates through the platform 12; the driving mechanism 62 in the embodiment is a hydraulic driving mechanism, a hydraulic cylinder body is fixed to the lower side of the platform 12, a piston rod is arranged in an integrated structure with the push rod 61, and an abutting head matched with the mandrel 86 of the rotary sealing assembly 8 can be arranged on the end head of the push rod 61.

[0066] The platform 12 is further provided with a portal mechanism 7, the portal mechanism 7 is used for arranging a pressing block 71 matched with the upper portion of the rotary sealing assembly 8, and the portal mechanism 7 is in sliding connection with the platform 12. When the push rod 61 pushes the mandrel 86 upwards, the pressing block 71 applies downward pressure, so that the push rod 61 pushes the mandrel 86, the bearing 85 is separated from the mandrel 86, and the dismounting work of the bearing 85 is realized.

[0067] The other end of the hanging arm 22 of the suspension mechanism 2 can extend to the upper side of the platform 12; in the embodiment, the suspension mechanism 2 can rotate 360 degrees based on the stand, and the rotary sealing assembly 8 can be hoisted and transported in each work station.

[0068] As shown in the figure, Figure 2 The second clamping mechanism 51 comprises a second clamping body 511, the second clamping body 511 is located above the platform 12, and a plurality of second clamping assemblies for clamping the rotary sealing assembly 8 are arranged in the circumferential direction of the second clamping body 511. The second clamping assembly comprises a second lead screw 512 and a second handle 513, the second lead screw 512 is in threaded rotationally connected with the second clamping body 511, the second handle 513 is arranged at one end of the second lead screw 512, and the other end of the second lead screw 512 is used for abutting against the rotary sealing assembly 8.

[0069] It should be noted that the driving mechanism 62 and the electric hoist 23 in the embodiment of the present application need to be electrically controlled, and the control mode, power supply structure and the like can adopt the prior art, which will not be described here.

[0070] In order to further understand the embodiment of the present application, the dismounting and mounting processes of the rotary sealing assembly 8 will be described below.

[0071] The dismounting process of the coffee cup 82 and the upper rubber core 83 of the rotary seal assembly 8 of the present embodiment is shown in Figure 9 and Figure 10 When dismounting, first use the suspension mechanism 2 to hoist the rotary seal assembly 8 to the first dismounting station, put the housing 81 into the first clamping body 311, start the first clamping assembly, and through the rack and pinion transmission mechanism, make each claw 321 rotate and extend from the first clamping body 311, the rotating direction is from the direction away from the first opening to the direction close to the first opening, clamp the rotary seal assembly 8. As shown in Figure 10 , turn the coffee cup 82 of the rotary seal assembly 8 to the pedal 13 through the first overturning mechanism 33, the operator standing on the pedal 13 removes the screw on the upper end of the coffee cup 82, hoists the upper rubber core 83 together with the upper rubber core connecting disc 87 out of the rotary seal assembly 8, and then removes the connecting bolt between the rubber core 83 and the rubber core connecting disc 87. Then, the operator removes the screw inside the coffee cup 82, and completes the dismounting of the coffee cup 82. Turn the rotary seal assembly 8 to the vertical position again through the first overturning mechanism 33 to dismount the lower rubber core 83 and the lower rubber core connecting disc 87.

[0072] For the mounting process of the coffee cup 82, the rubber core connecting disc 87 and the rubber core 83 of the rotary seal assembly 8, adjust the first clamping mechanism 31 to be horizontal, ensure that the claws 321 are located in the first clamping body 311, hoist the rotary seal assembly with assembled bearings and end covers to the ground directly below the first overturning mechanism 33, hoist the coffee cup 82 above the rotary seal assembly and align the shaft centers, rotate the push force suspension arm 41 to make the connecting disc 44 abut against the coffee cup 82, rotate the push force lead screw 43 to press-fit the coffee cup 82 into place, and tighten the screw inside the coffee cup. Rotate the push force suspension arm 41 to leave the center position. Assemble the upper rubber core 83 and the upper rubber core connecting disc 87, hoist them to the upper end of the coffee cup 82, rotate the push force suspension arm 41 to make the connecting disc 44 abut against the upper rubber core connecting disc 87, rotate the push force lead screw 43 to press-fit the upper rubber core connecting disc 87 into place, and tighten the screw outside the coffee cup. Hoist the rotary seal assembly 8, place the lower rubber core connecting disc 87 below the core shaft 86 and align the center, then press-fit it into place, hoist the rotary seal assembly 8 again, and install the lower rubber core 83.

[0073] The dismounting process of the end cover 84 of the rotary seal assembly 8 of the present embodiment is shown in Figure 11 and Figure 12, after the coffee cup 82 and the rubber core 83 are disassembled, the rotating sealing assembly 8 and the first thrust mechanism 4 are adjusted, the connecting disc 44 of the first thrust mechanism 4 is aligned with the end cover 84 at one end of the rotating sealing assembly 8, the handle is rotated to move the connecting disc 44 downward, the abutment between the connecting disc 44 and the end cover 84 is ensured, the connecting disc 44 and the end cover 84 are fixed by screws, the handle is rotated again to lift the connecting disc 44 upward, the end cover 84 is separated from the shell 81, and the disassembly of the end cover 84 at one end is completed. The rotating sealing assembly 8 is rotated by 180 degrees, the end cover 84 at the other end of the rotating sealing assembly 8 is aligned with the connecting disc 44, the handle is rotated to move the connecting disc 44 downward, the abutment between the connecting disc 44 and the end cover 84 is ensured, the connecting disc 44 and the end cover 84 are fixed by screws, the handle is rotated again to lift the connecting disc 44 upward, the end cover 84 is separated from the shell 81, and the disassembly of the end cover 84 at the other end is completed.

[0074] The installation process of the two end covers 84 of the rotating sealing assembly 8 is the reverse operation of the disassembly process. When installing, the end cover 84 is first fixed on the connecting disc 44, the rotating sealing assembly 8 is aligned with the end cover 84, the handle is rotated to move the connecting disc 44 downward, the end cover 84 is pressed downward and installed in the shell 81, and the installation of the end cover 84 is completed. The installation process of the end cover 84 at the other end of the rotating sealing assembly 8 is the same as that of the end cover 84 at one end, and will not be described here.

[0075] The disassembly process of the bearing 85 of the rotating sealing assembly 8 of the embodiment is described with reference to Figure 13 and Figure 14 The rolling bearing 85 is used in the embodiment, and the inner ring of the rolling bearing 85 is in interference fit with the mandrel 86, so that a large axial thrust is required during disassembly. First, the rotating sealing assembly 8 whose end cover 84 is disassembled is lifted to the second disassembly station by the suspension mechanism 2, is close to the second clamping body 511, and is moved into the second clamping body 511; then the rotating sealing assembly 8 is clamped by rotating the second screw rod 512 through the second handle 513. The push rod 61 is aligned with the mandrel 86, the gantry mechanism 7 is moved, the pressing block 71 abuts against the upper end face of the shell 81, the mandrel 86 is separated from the underlying bearing 85 by driving the push rod 61 upward through the driving mechanism 62, and the disassembly of the bearing 85 is realized. For disassembly of the other bearing 85, the rotating sealing assembly 8 is rotated by 180 degrees through the second turnover mechanism 52, and the foregoing operation is performed.

[0076] The bearing installation schematic diagram of the rotating sealing assembly 8 of the embodiment is described with reference to Figure 15 and Figure 16, the inner ring of the upper end bearing 85 is placed on the mandrel 86, and the positioning ensures that the end face of the bearing 85 is perpendicular to the axis of the mandrel 86. The two are hoisted to the platform 12, the gantry mechanism 7 is moved, the pressing block 71 is rotated, the lifting screw 72 on the gantry mechanism is adjusted, the pressing block 71 on both sides is uniformly forced to press the inner ring of the bearing 85, the push rod 61 is lifted, and the bearing 85 is started to be pressed into the specified position of the mandrel 86. The lifting screw 72 and the pressing block 71 are lifted, the gantry is moved to the end of the platform to make room, and the mandrel is hoisted away from the platform to make room.

[0077] The shell 81 is hoisted above the platform 12, and the second clamping mechanism 511 clamps the shell 81. The mandrel 86 with the inner ring of the upper end bearing 85 is hoisted to the center of the shell 81, the outer ring of the upper end bearing 85 is placed in the shell 81, the pressing block 71 on the gantry mechanism 7 is adjusted, the corresponding boss is pressed against the outer ring of the bearing 85, the pressing block 71 on both sides is uniformly forced to press the outer ring of the bearing 85, and the lifting screw 72 is rotated to press the outer ring of the bearing 85.

[0078] The lifting screw 72 and the pressing block 71 are lifted, the gantry mechanism 7 is moved to the end of the platform 12 to make room, the second turnover mechanism 52 is rotated, and the rotary sealing assembly is turned over by 180°. The lower end bearing 85 is placed on the mandrel 86, and the positioning ensures that the end face of the bearing 85 is perpendicular to the axis of the mandrel 86. The gantry mechanism 7 is moved, the pressing block 71 is rotated, the lifting screw 72 is adjusted, the pressing block 71 on both sides is uniformly forced to press the inner ring of the bearing 85, and the push rod 61 is extended to start pressing the bearing 85.

[0079] The lifting screw 72 and the pressing block 71 are lifted, the gantry mechanism 7 is moved to the end of the platform 12 to make room. The outer ring of the bearing 85 is placed in the shell 81, the pressing block 71 on the gantry mechanism 7 is adjusted, the corresponding boss is pressed against the outer ring of the bearing 85, the pressing block 71 on both sides is uniformly forced to press the outer ring of the bearing 85, and the lifting screw 72 is rotated to press the outer ring of the bearing 85.

[0080] The above is only the preferred embodiment of the present application, and is not used to limit the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A dismounting station suitable for a rotary seal assembly, characterized in that, The first disassembling station comprises a first clamping and overturning mechanism and a first thrust mechanism. The suspension mechanism comprises a main stand and a boom, one end of the main stand is in vertical rotation connection with the main body frame, the first end of the boom is connected with the other end of the main stand, and the other end of the boom can extend above the first clamping and overturning mechanism. The first clamping and overturning mechanism comprises a first clamping mechanism and a first overturning mechanism, the first overturning mechanism is arranged on one side of the main body frame, the first clamping mechanism is used for clamping the rotary sealing assembly and extending to the outside of the main body frame, and the first clamping mechanism is overturned through the first overturning mechanism. The first thrust mechanism is used for applying downward pressure or upward tension to the rotary sealing assembly, and the first thrust mechanism is fixedly connected with the main body frame through a side stand. The first clamping mechanism comprises a first clamping body, the first clamping body is located below the first thrust mechanism, the first clamping body has a first opening for the rotary sealing assembly to pass through, and a first clamping assembly for clamping the rotary sealing assembly is arranged on the circumference of the first clamping body. The first clamping assembly comprises a rack and pinion transmission mechanism, the rack and pinion transmission mechanism comprises a gear and a rack, a pawl is fixedly arranged on the gear, the pawl is used for clamping the rotary sealing assembly, the rack is in transmission connection with a driving mechanism, and the pawl rotates to extend out of the first clamping body or retract into the first clamping body along with the gear.

2. The dismounting station suitable for a rotary seal assembly according to claim 1, characterized in that, The gear comprises a first gear, a second gear, a third gear and a fourth gear, the rack comprises a first rack and a second rack, the first gear and the second gear are in transmission connection with the first rack, the third gear and the fourth gear are in transmission connection with the second rack, a pawl is fixedly arranged on each gear, and the pawl moves out of the first clamping body or retracts into the first clamping body in the same direction along with the gear.

3. The demounting station suitable for a rotary seal assembly according to claim 2, characterized in that, The pawl is used for clamping one end of the rotary sealing assembly, one side of the clamping end in the extending direction is provided with a guide inclined surface, and the other side of the clamping end is provided with an abutting surface abutting against the outside of the rotary sealing assembly.

4. The demounting station for rotary sealing assemblies according to claim 1, characterized in that, A plurality of pawls are arranged on the circumference of the first clamping body.

5. The demounting station suitable for a rotary seal assembly according to claim 1, characterized in that, The driving mechanism is a double worm gear driving mechanism, comprising two groups of worm gears, two worm gears are fixedly connected at one end, the center of the worm gear is internally threaded, the end of the rack is externally threaded, and the internal thread of the worm gear drives the rack with external thread to move linearly.

6. The demounting station suitable for a rotary seal assembly according to claim 1, characterized in that, The first overturning mechanism comprises a first chassis, a first stand, a first speed reducer and a first overturning shaft, the first chassis is fixedly arranged on the main body frame, the first stand is arranged on the first chassis, the first speed reducer and the first overturning shaft are arranged on the first stand, the output end of the first speed reducer is fixedly connected with the first overturning shaft, and the first overturning shaft is fixedly connected with the first clamping mechanism.

7. The demounting station suitable for a rotary seal assembly according to claim 1, characterized in that, The first thrust mechanism comprises a thrust cantilever, a rotating shaft, a thrust screw rod and a connecting disc, one end of the thrust cantilever is rotationally connected with the side stand column through the rotating shaft, the other end of the thrust cantilever is drivingly connected with one end of the thrust screw rod, the other end of the thrust screw rod is fixedly connected with the connecting disc.

8. The tooling station for a rotary seal assembly of claim 1, wherein, The first disassembling and assembling station is two, and two first disassembling and assembling stations are respectively arranged on two sides of the main frame.

9. The dismounting station suitable for a rotary sealing assembly according to any one of claims 1 to 8, characterized in that, Further comprising a second disassembling and assembling station, the second disassembling and assembling station comprises a second clamping and overturning mechanism and a second thrust mechanism. The main frame is provided with a platform and the second thrust mechanism. The second clamping and overturning mechanism comprises a second clamping mechanism and a second overturning mechanism, the second overturning mechanism is fixedly connected with the main frame, the second clamping mechanism is used for clamping the rotary sealing assembly and extending to one side of the platform, and the second clamping mechanism is overturned through the second overturning mechanism. The second thrust mechanism comprises a push rod and a driving mechanism, the driving mechanism is arranged below the platform, one end of the push rod is drivingly connected with the driving mechanism, and the other end of the push rod penetrates through the platform. The other end of the hanging arm of the suspension mechanism can extend above the platform.

10. The demounting station suitable for a rotary seal assembly according to claim 9, characterized in that, The platform is further provided with a portal mechanism, and the portal mechanism is used for arranging a pressing block matched with the upper part of the rotary sealing assembly.

11. The demounting station suitable for a rotary seal assembly according to claim 9, characterized in that, The portal mechanism is slidingly connected with the platform.

12. The demounting station suitable for a rotary seal assembly according to claim 9, characterized in that, The second clamping mechanism comprises a second clamping body, the second clamping body is located above the platform, and a plurality of second clamping assemblies for clamping the rotary sealing assembly are arranged on the periphery of the second clamping body.

13. The demounting station suitable for a rotary seal assembly according to claim 12, characterized in that, The second clamping assembly comprises a second screw rod and a second handle, the second screw rod is threadedly and rotatably connected with the second clamping body, the second handle is arranged at one end of the second screw rod, and the other end of the second screw rod is used for abutting against the rotary sealing assembly.

14. The demounting station suitable for a rotary seal assembly according to claim 9, characterized in that, The second overturning mechanism comprises a second base plate, a second stand column, a second speed reducer and a second overturning shaft, the second base plate is fixedly arranged on the main frame, the second stand column is arranged on the second base plate, the second speed reducer and the second overturning shaft are arranged on the second stand column, the output end of the second speed reducer is fixedly connected with the second overturning shaft, and the second overturning shaft is fixedly connected with the second clamping body.

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