Crankshaft pump plunger oil seal press fitting device

Abstract

The present application relates to a kind of crankshaft pump plunger oil seal press equipment, including conveying mechanism;Positioning mechanism;Resist pressure device, the resist pressure device includes: mounting seat, center pressure rod is fixedly arranged on the mounting seat, and side pressure rod is arranged on the two sides of center pressure rod respectively;The side pressure rod is transversely slidably connected with mounting seat;The lower end of the center pressure rod and side pressure rod is slidably provided with a plurality of limit blocks along the radial direction;Transverse drive mechanism, for driving two side pressure rod synchronous away or close to center pressure rod;Lifting drive mechanism, for driving mounting seat to move up and down;And adjusting mechanism, the adjusting mechanism is used to drive limit block to slide corresponding distance according to the moving distance of side pressure rod.The present application can adapt to the press work of the plunger oil seal of multiple specifications of crankshaft pump without replacing press assembly.

Description

TECHNICAL FIELD

[0001] The application relates to the field of pressing equipment, in particular to a crankshaft pump plunger oil seal pressing equipment. BACKGROUND

[0002] In the production process of a crankshaft pump, a pressing equipment is needed to press the plunger oil seal into the crankshaft pump. The size and spacing of the plunger oil seal of each crankshaft pump are different, so when the plunger oil seal of different crankshaft pumps needs to be pressed, the pressing assembly on the pressing equipment needs to be replaced so that the pressing assembly can adapt to the new crankshaft pump.

[0003] A factory may produce many specifications of crankshaft pumps, so there is a corresponding pressing assembly for each crankshaft pump. Therefore, the traditional pressing equipment has many specifications of pressing assemblies, and the storage and management of the pressing assemblies are problematic. When the pressing assembly on the pressing equipment is replaced, it takes a lot of time to find the corresponding pressing assembly, and the pressing assembly is also very troublesome to install and remove. Therefore, a new type of pressing equipment is needed to enable a pressing equipment to adapt to the pressing operation of the plunger oil seal of multiple specifications of crankshaft pumps without replacing the pressing assembly. SUMMARY

[0004] The application provides a crankshaft pump plunger oil seal pressing equipment that can produce multiple specifications of plunger oil seals of crankshaft pumps without replacing the pressing assembly.

[0005] The application provides a crankshaft pump plunger oil seal pressing equipment that adopts the following technical scheme:

[0006] Preferably, the crankshaft pump plunger oil seal pressing equipment comprises

[0007] A conveying mechanism is configured to convey the crankshaft pump in a predetermined direction, and the conveying mechanism is provided with a pressing station;

[0008] A positioning mechanism is arranged at the pressing station and is configured to calibrate the position of the crankshaft pump arriving at the pressing station;

[0009] A pressing device is arranged at the pressing station;

[0010] The pressing device comprises

[0011] A mounting seat is fixedly provided with a center pressing rod, and a side pressing rod is arranged on each side of the center pressing rod; the side pressing rod is transversely slidably connected to the mounting seat; and the lower end of each of the center pressing rod and the side pressing rod is radially slidably provided with a plurality of limiting blocks;

[0012] A transverse driving mechanism is configured to drive the two side pressing rods to synchronously move away from or close to the center pressing rod;

[0013] A lifting driving mechanism is arranged to drive the mounting base to move up and down;

[0014] An adjusting mechanism is arranged to drive the limiting block to slide a corresponding distance according to the moving distance of the side pressing rods.

[0015] Preferably, the lateral driving mechanism comprises a bidirectional screw rod arranged on the mounting base, a motor arranged on the mounting base to drive the bidirectional screw rod to rotate, and two side pressing rods threadedly connected to two threads of the bidirectional screw rod respectively.

[0016] Preferably, the adjusting mechanism comprises three sliding sleeves and three driving assemblies; the three sliding sleeves are sleeved on the two side pressing rods and the center pressing rod one by one, the bottom end of the sliding sleeve is in a trumpet shape, a plurality of dovetail grooves are arranged on the inner wall of the trumpet-shaped bottom end of the sliding sleeve, and the end of the limiting block is slidably arranged in the corresponding dovetail groove; the three driving assemblies are connected with the three sliding sleeves respectively to drive the corresponding sliding sleeve to slide during the movement of the side pressing rod.

[0017] Preferably, the driving assembly comprises a gear, an L-shaped lifting rod arranged on the gear, and a plurality of racks; the three gears are arranged on the two side pressing rods and the center pressing rod one by one; the three sliding sleeves are provided with inclined grooves, the end of the lifting rod extends into the corresponding inclined groove; the racks of two driving assemblies are arranged on the mounting base, and the racks of the other driving assembly are arranged on the movable plate; the movable plate is slidably arranged on the mounting base and connected with one of the side pressing rods.

[0018] Preferably, two mounting plates are detachably connected to the mounting base, and the racks of the two driving assemblies are arranged on the two mounting plates respectively.

[0019] Preferably, the two mounting plates detachably arranged on the mounting base are fixed on the mounting base by bolts; the movable plate connected with the side pressing rod is provided with a matching block, and the side pressing rod connected with the movable plate is provided with a matching groove; the matching block is inserted into the matching groove and locked by bolts.

[0020] Preferably, the bottom end of the center pressing rod and the two side pressing rods is sleeved with a mounting pipe, and a plurality of limiting blocks are transversely slidably arranged on the corresponding mounting pipes.

[0021] Preferably, the positioning mechanism comprises a power part two, a power part three, two mounting blocks, and two positioning wheels arranged on the mounting blocks; the power part two is arranged to drive the power part three to move up or down, and the power part three is arranged to drive the two mounting blocks to move away or close to each other.

[0022] Preferably, the power part two is a cylinder two arranged on the pressing station, the power part two is located above the power part three, and the telescopic shaft of the power part two is connected with the power part three.

[0023] Preferably, the power part three is a double-head cylinder, and the two mounting blocks are arranged on the telescopic shafts on the two sides of the power part three.

[0024] The technical effects of the present application mainly embody in the following aspects:

[0025] 1. The output shaft of the double-head cylinder is retracted during the transmission of the crankshaft pump, four positioning wheels clamp and position two oil seals on the two sides of the two plungers, so that the position of the crankshaft pump and the plunger oil seal is adjusted, and the center pressing rod and the two side pressing rods can be aligned with the three plunger oil seals when the crankshaft pump is subsequently conveyed below the first cylinder.

[0026] 2. The present application sets multiple limiting blocks to limit the plunger oil seal when the center pressing rod and the side pressing rod press the plunger oil seal, preventing the plunger oil seal from being pressed into the crankshaft pump and deviating, thereby reducing the probability of collision and fracture of the plunger oil seal when pressed against the crankshaft pump.

[0027] 3. The present application can adapt to the pressing operation of the plunger oil seal of various specifications of crankshaft pumps. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 is a structural schematic view of the pressing equipment of the present application.

[0029] Figure 2 is a structural schematic view of the pressing station, the positioning mechanism and the pressing device.

[0030] Figure 3 is a structural schematic view of the positioning mechanism.

[0031] Figure 4 is Figure 2 is a structural schematic view of another angle of each component in the present application.

[0032] Figure 5 is a structural schematic view of the pressing device.

[0033] Figure 6 is Figure 5 is a sectional view of the pressing device along line A-A in the present application.

[0034] Figure 7 is Figure 6 is an enlarged view of part B in the present application.

[0035] Figure 8 is Figure 7 is a structural schematic view of the side pressing rod, the adjusting mechanism, the driving assembly and other components in the present application.

[0036] Figure 9 is Figure 7 The structure explosion drawing of the middle gear, pull rod and sleeve body.

[0037] Figure 10 is Figure 7 The structure schematic view of the slide sleeve, mounting pipe and three limit blocks.

[0038] Figure 11 is Figure 7 The structure schematic view of the side pressure rod and mounting pipe.

[0039] Reference signs: 11, conveying mechanism; 12, pressing station; 13, positioning mechanism; 14, power part two; 15, power part three; 16, mounting block; 17, positioning wheel; 2, pressing device; 21, mounting seat; 22, center pressure rod; 23, side pressure rod; 24, transverse driving mechanism; 241, bidirectional screw rod; 242, motor; 25, limit block; 26, lifting driving mechanism; 27, mounting pipe; 3, adjusting mechanism; 31, slide sleeve; 32, dovetail groove; 4, driving assembly; 41, gear; 42, pull rod; 43, rack; 44, inclined groove; 51, movable plate; 52, mounting plate; 61, matching groove; 62, matching block; 7, crankshaft pump; 71, plunger oil seal. DETAILED DESCRIPTION

[0040] The application will be further described in detail below with reference to the drawings, so that the technical scheme of the application is easier to understand and master.

[0041] With reference to Figures 1-3 , the crankshaft plunger oil seal pressing equipment of the embodiment comprises a conveying mechanism 11 for conveying the crankshaft pump 7 in a preset direction, and the conveying mechanism 11 of the embodiment is a conveying belt. The conveying mechanism 11 is provided with a pressing station 12, and the pressing station 12 is provided with a positioning mechanism 13 for position calibration of the crankshaft pump 7 arriving at the pressing station 12.

[0042] With reference to Figures 1-3 , the positioning mechanism 13 comprises a power part two 14 and a power part three 15. The power part two 14 is used for driving the power part three 15 to move upward or downward. The power part two 14 is a cylinder two, and the power part three 15 is a double-head cylinder. The power part three 15 is located below the power part two 14 and is connected with the telescopic shaft of the power part two 14. The positioning mechanism 13 further comprises two mounting blocks 16 respectively arranged on the telescopic shafts on the two sides of the power part three 15 and two positioning wheels 17 rotatably connected to the mounting blocks 16.

[0043] With reference to Figure 1 , Figures 4-6The pressing station 12 is also provided with a pressing device 2. The pressing device 2 comprises a mounting seat 21, a center pressing rod 22 fixedly arranged on the mounting seat 21, and two side pressing rods 23 transversely and slidably connected to the mounting seat 21 and located on both sides of the center pressing rod 22.

[0044] With reference to Figure 4 , the pressing device 2 further comprises a lifting driving mechanism 26 for driving the mounting seat 21 to move up and down, the lifting driving mechanism 26 being a pneumatic cylinder, the lifting driving mechanism 26 being arranged on the pressing station 12 and located above the mounting seat 21, and a telescopic shaft of the lifting driving mechanism 26 being connected to the mounting seat 21.

[0045] With reference to Figure 6 , the pressing device 2 further comprises a transverse driving mechanism 24 for driving the two side pressing rods 23 to move away from or close to the center pressing rod 22 synchronously. The transverse driving mechanism 24 comprises a bidirectional screw rod 241 rotatably arranged on the mounting seat 21, a motor 242 arranged on the mounting seat 21 and used for driving the bidirectional screw rod 241 to rotate, and the two side pressing rods 23 being threadedly connected to two threads of the bidirectional screw rod 241 respectively.

[0046] With reference to Figures 6-11 , the bottom end of each of the two side pressing rods 23 and the center pressing rod 22 is sleeved with a mounting pipe 27, and three limiting blocks 25 are radially and slidably connected to one mounting pipe 27. The pressing device 2 further comprises an adjusting mechanism 3 for driving the limiting blocks 25 to slide by a corresponding distance according to the moving distance of the side pressing rods 23.

[0047] The diameter of the plunger oil seal 71 of each crankshaft pump 7 is different, so the position of the limiting blocks 25 is changed before pressing different crankshaft pumps 7, so that the plunger oil seal 71 to be pressed can pass through multiple limiting blocks 25, and the limiting blocks 25 limit the plunger oil seal 71 when the center pressing rod 22 and the side pressing rods 23 press the plunger oil seal 71, preventing the plunger oil seal 71 from being pressed into the crankshaft pump 7 and deviating, thereby reducing the probability of collision and fracture of the plunger oil seal 71 when pressed against the crankshaft pump 7.

[0048] With reference to Figures 6-11 , the adjusting mechanism 3 comprises three sliding sleeves 31 slidably sleeved on the center pressing rod 22 and the two side pressing rods 23 in the vertical direction, and the three mounting pipes 27 are located in the three sliding sleeves 31 respectively. The bottom end of the sliding sleeve 31 is in a trumpet shape, three dovetail grooves 32 are formed in the inner wall of the trumpet-shaped bottom end of the sliding sleeve 31, and the mutually distal ends of the three limiting blocks 25 on the same mounting pipe 27 are slidably connected to the three dovetail grooves 32 of the same sliding sleeve 31 respectively.

[0049] With reference to Figures 6-11The adjusting mechanism 3 further comprises three sets of driving mechanisms, and the three sets of driving assemblies 4 are respectively connected with the three sliding sleeves 31 to drive the corresponding sliding sleeve 31 to slide during the movement of the side pressure rods 23. The driving assembly 4 comprises a gear 41, an L-shaped pull rod 42 arranged on the gear 41, and two racks 43. The three gears 41 are respectively arranged on the two side pressure rods 23 and the center pressure rod 22 in a one-to-one rotation manner. The three sliding sleeves 31 are respectively provided with inclined grooves 44, and the end of the pull rod 42 extends into the corresponding inclined groove 44.

[0050] With reference to Figures 6-11 The mounting seat 21 is detachably connected with two mounting plates 52, the two mounting plates 52 are fixed on the mounting seat 21 by bolts, and the racks 43 of the two sets of driving assemblies 4 are respectively mounted on the two mounting plates 52. The mounting seat 21 is further transversely and slidably connected with a movable plate 51, the movable plate 51 is provided with a matching block 62, one of the side pressure rods 23 is provided with a matching groove 61, the matching block 62 is inserted into the matching groove 61 and locked by mounting bolts, and the movable plate 51 will move synchronously with the side pressure rod 23, and the rack 43 of the other set of driving assemblies 4 is mounted on the movable plate 51.

[0051] When the side pressure rod 23 moves away from the center pressure rod 22, the gear 41 on the side pressure rod 23 will engage with the rack 43 on the mounting plate 52 and rotate forward. When the side pressure rod 23 moves close to the center pressure rod 22, the gear 41 on the side pressure rod 23 will engage with the rack 43 on the mounting plate 52 and rotate reversely. When the side pressure rod 23 moves away from the center pressure rod 22, the rack 43 on the movable plate 51 will engage with the gear 41 on the center pressure rod 22 and drive it to rotate forward; when the side pressure rod 23 moves close to the center pressure rod 22, the rack 43 on the movable plate 51 will engage with the gear 41 on the center pressure rod 22 and drive it to rotate forward.

[0052] The motor 242 in the embodiment is a motor 242 with an encoder built-in, the rotation of the motor 242 is controlled by the encoder of the motor 242 to control the number of rotations of the bidirectional screw rod 241, so that the bidirectional screw rod 241 will pause when it rotates to a preset number of rotations. The sliding distance of the side pressure rod 23 is controlled by controlling the number of rotations of the bidirectional screw rod 241, so that the side pressure rod 23 has three pause positions when sliding, which correspond to the positions of the plunger oil seals 71 of the three types of crankshaft pumps 7 respectively.

[0053] The length of the rack 43 can control the rotation angle of the gear 41. The two racks 43 on the same mounting plate 52 are located between the three positions where the side pressure rods 23 slide and pause on the same side. The gear 41 will mesh with the corresponding rack 43 and rotate during movement, thereby adjusting the position of the three limit blocks 25 on the same mounting tube 27, so that the limit block 25 can have three pause positions. This allows the device to adapt to three specifications of the piston oil seal 71 of the crankshaft pump 7.

[0054] Referring to Figures 1-10 , the steps of the device for pressing the piston oil seal 71 of the crankshaft pump 7 are as follows:

[0055] First, according to the specification of the crankshaft pump 7 to be pressed. Then control the rotation of the bidirectional screw 241 by the motor 242. The bidirectional screw 241 will drive the two side pressure rods 23 to slide when it rotates. During this process, the two gears 41 on the two side pressure rods 23 will come into contact with the racks 43 on their path and rotate. The rotation of the gear 41 will drive the sliding sleeve 31 to move, and the movement of the sliding sleeve 31 will drive the three limit blocks 25 connected to it to move, changing the position between the limit blocks 25. Finally, the two side pressure rods 23 can press the two piston oil seals 71 on both sides of the crankshaft pump 7 during the pressing operation, and the piston oil seal 71 can pass through the multiple limit blocks 25, allowing the multiple limit blocks 25 to limit the piston oil seal 71 and prevent it from shifting.

[0056] After the movement adjustment of the side pressure rods 23 and the limit blocks 25 is completed, the pressing operation of the piston oil seal 71 of the crankshaft pump 7 can begin. When the piston oil seal 71 of the crankshaft pump 7 is pressed, the conveying mechanism 11 first conveys the crankshaft pump 7 with three piston oil seals 71 to the lower side of the power part three 15. At this time, the four positioning wheels 17 are distributed on both sides of the three piston oil seals 71, two by two. Then the retractable shafts on both sides of the power part three 15 retract to make the four positioning wheels 17 close to the two piston oil seals 71 on both sides of the crankshaft pump 7, so that the four positioning wheels 17 clamp the two piston oil seals 71, adjusting the position of the crankshaft pump 7 and the piston oil seal 71. The movement path of the three piston oil seals 71 overlaps with the movement path of the center pressure rod 22 and the two side pressure rods 23.

[0057] The subsequent conveying mechanism 11 conveys the crankshaft pump 7 with the adjusted position to the lower side of the mounting seat 21, so that the three piston oil seals 71 are located directly below the center pressure rod 22 and the two side pressure rods 23. Then the retractable shaft of the adjusting mechanism 3 is extended to make the mounting seat 21 move down. When the mounting seat 21 moves down, the center pressure rod 22 and the two side pressure rods 23 will press the three piston oil seals 71, pressing the three piston oil seals 71 into the crankshaft pump 7, completing the pressing operation of the three piston oil seals 71 of a crankshaft pump 7.

[0058] Of course, the above merely is a typical example of the present application, and in addition to the above, the present application can have other various specific embodiments, and any technical solution formed by equivalent replacement or equivalent transformation falls within the scope of the present application.

Claims

1. A crankshaft pump plunger oil seal press-fitting device, characterized in that, include: A conveying mechanism (11) is used to convey the crankshaft pump (7) in a preset direction, and the conveying mechanism (11) is equipped with a press-fitting station (12); The positioning mechanism (13) is located at the press-fitting station (12) and is used to calibrate the position of the crankshaft pump (7) that arrives at the press-fitting station (12). A pressing device (2) is installed at the pressing station (12); The pressing device (2) includes: Mounting base (21), on which a central pressure rod (22) is fixedly provided, and side pressure rods (23) are respectively provided on both sides of the central pressure rod (22); the side pressure rods (23) are slidably connected to the mounting base (21) laterally; the lower ends of the central pressure rod (22) and the side pressure rods (23) are each provided with a plurality of limiting blocks (25) slidably in the radial direction; A lateral drive mechanism (24) is used to drive the two side pressure bars (23) to move synchronously away from or towards the central pressure bar (22); The lifting drive mechanism (26) is used to drive the mounting base (21) to move up and down; and adjustment mechanism (3), which is used to drive the limiting block (25) to slide a corresponding distance according to the moving distance of the side pressure rod (23); The transverse drive mechanism (24) includes a bidirectional lead screw (241) rotatably mounted on the mounting base (21), a motor (242) mounted on the mounting base (21) for driving the bidirectional lead screw (241) to rotate, and two side pressure rods (23) are respectively threaded to the two threads of the bidirectional lead screw (241). The adjustment mechanism (3) includes three sliding sleeves (31) and three sets of drive components (4); wherein, the three sliding sleeves (31) are respectively slidably sleeved on the two side pressure rods (23) and the central pressure rod (22) in a one-to-one manner, the bottom end of the sliding sleeve (31) is flared, and multiple dovetail grooves (32) are provided on the inner wall of the flared bottom end of the sliding sleeve (31), and the end of the limiting block (25) is slidably disposed in the corresponding dovetail groove (32); the three sets of drive components (4) are respectively connected to the three sliding sleeves (31) to drive the corresponding sliding sleeves (31) to slide during the movement of the side pressure rods (23).

2. The crankshaft pump plunger oil seal press-fitting equipment according to claim 1, characterized in that: The drive assembly (4) includes a gear (41), an L-shaped lifting rod (42) mounted on the gear (41), and several racks (43); three of the gears (41) are rotatably mounted on two side pressure rods (23) and a central pressure rod (22) respectively; each of the three sliding sleeves (31) has a groove (44) and the end of the lifting rod (42) extends into the corresponding groove (44); two sets of racks (43) of the drive assembly (4) are mounted on the mounting base (21), and several racks (43) of another set of the drive assembly (4) are mounted on a movable plate (51), which is slidably mounted on the mounting base (21) and connected to one of the side pressure rods (23).

3. The crankshaft pump plunger oil seal press-fitting equipment according to claim 2, characterized in that: Two mounting plates (52) are detachably connected to the mounting base (21), and several racks (43) on the two sets of drive components (4) are respectively mounted on the two mounting plates (52).

4. The crankshaft pump plunger oil seal press-fitting equipment according to claim 3, characterized in that: Two detachable mounting plates (52) are fixed to the mounting base (21) by bolts; a mating block (62) is provided on the movable plate (51) connected to the side pressure rod (23), and a mating groove (61) is provided on the side pressure rod (23) connected to the movable plate (51). The mating block (62) is inserted into the mating groove (61) and the two are locked by bolts.

5. The crankshaft pump plunger oil seal press-fitting equipment according to claim 1, characterized in that: The bottom ends of the central pressure rod (22) and the two side pressure rods (23) are all fitted with mounting tubes (27), and multiple limiting blocks (25) are respectively slidably mounted on the corresponding mounting tubes (27).

6. The crankshaft pump plunger oil seal press-fitting equipment according to claim 1, characterized in that: The positioning mechanism (13) includes a second power unit (14), a third power unit (15), two mounting blocks (16), and two positioning wheels (17) on the mounting blocks (16). The second power unit (14) is used to drive the third power unit (15) to move up or down, and the third power unit (15) is used to drive the two mounting blocks (16) to move away from or towards each other.

7. The crankshaft pump plunger oil seal press-fitting equipment according to claim 6, characterized in that: The second power unit (14) is a cylinder two installed on the press-fitting station (12). The second power unit (14) is located above the third power unit (15), and the telescopic shaft of the second power unit (14) is connected to the third power unit (15).

8. The crankshaft pump plunger oil seal press-fitting equipment according to claim 7, characterized in that: The power unit three (15) is a double-headed cylinder, and the two mounting blocks (16) are respectively located on the telescopic shafts on both sides of the power unit three (15).

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