Elbow pushing machine

Abstract

The utility model relates to the field of elbow and bent pipe processing, in particular to an elbow pushing machine, which comprises an inner core arranged on a working platform with a horizontal axis, a working section of the inner core is used for sleeving a steel pipe, and an induction coil used for heating the steel pipe and an elbow mold used for bending the heated steel pipe are sequentially arranged on a forward path of the steel pipe; the inner core is slidably sleeved with a push table, and the front end face of the push table forms an acting face used for pushing the steel pipe to move forwards. Pushing screw rods driven by a power source are arranged on the two sides of the inner core, and the pushing table and the pushing screw rods are in a screw rod sliding block matching relation. The elbow is pushed and formed through the lead screw, precision is high, the requirement for the environment is low, and continuous and stable operation can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the elbow, elbow processing field, concretely is a kind of elbow pusher. BACKGROUND

[0002] Elbow is a kind of pipe fitting for pipeline elbow, and occupies an important position in pipeline system.The processing of existing elbow is as described in the publication "CN108672529A", elbow is pushed by medium-frequency induction heating technology, hydraulic cylinder is used as power source to push steel pipe through elbow die, while passing through elbow die, induction coil heats steel pipe, and the required elbow shape is pushed.

[0003] Since traditional hydraulic transmission is indirectly driven load by the transmission of liquid, there is certain energy loss and leakage in transmission process, the precision of pushing process is not high, and hydraulic transmission system has certain requirements on temperature, humidity and cleanliness of working environment.In high temperature environment, the viscosity of hydraulic oil can be reduced, which can affect the performance and stability of system;in low temperature environment, the flowability of hydraulic oil is poor, which can cause difficult start or poor operation of equipment, so it is urgent to be solved. UTILITY MODEL CONTENT

[0004] In order to avoid and overcome the technical problems existing in the prior art, the utility model provides an elbow pusher.The utility model pushes elbow forming by screw rod, which has high precision, low environmental requirements and can be continuously and stably operated.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] An elbow pusher comprises an inner core arranged on a work platform in horizontal axis, a working section of the inner core is used for sleeving a steel pipe, and an induction coil used for heating the steel pipe and an elbow die used for bending the heated steel pipe are sequentially arranged along the forward path of the steel pipe; a push table is slidably sleeved on the inner core, and the front end face of the push table constitutes an acting surface for pushing the steel pipe forward; pusher screw rods driven by a power source are arranged on both sides of the inner core, and the push table and each pusher screw rod constitute a screw rod and block cooperation relationship.

[0007] As a further scheme of the utility model, the pusher screw rods are two groups and symmetrically arranged relative to the axis of the inner core; the power source is a driving motor, power of the power source is transmitted to a gear transmission system through a speed reducer and a clutch, so as to synchronously drive the pusher screw rods to rotate, and the clutch is used to realize power on-off operation; a reset mechanism for controlling the reset of the push table when the clutch is disconnected is further included, and the reset mechanism comprises a reset motor, which is also gear-engaged with the gear transmission system.

[0008] As a further scheme of the utility model: the working platform is provided with a mounting seat for mounting the clutch, gear transmission system and reset mechanism, the gear transmission system comprises a driving gear pivotally arranged on the mounting seat, the power of the driving gear is transmitted to the screw gear through a driven gear, and the screw gear is coaxially fixed to the coaxial end of the corresponding push screw rod; the reset mechanism further comprises a reset gear engaged with the driving gear, and a belt transmission relationship is formed between the reset motor and the reset gear.

[0009] As a further scheme of the utility model: the working platform is provided with a mounting seat for mounting the clutch, gear transmission system and reset mechanism, the gear transmission system comprises a driving gear pivotally arranged on the mounting seat, the power of the driving gear is transmitted to the screw gear through a driven gear, and the screw gear is coaxially fixed to the coaxial end of the corresponding push screw rod; the reset mechanism further comprises a reset gear engaged with the driving gear, and a belt transmission relationship is formed between the reset motor and the reset gear.

[0010] The clutch advances and is connected with the driving gear to transmit power.

[0011] The clutch retreats and is disconnected with the driving gear.

[0012] As a further scheme of the utility model: the working platform is provided with a mounting seat for mounting the clutch, gear transmission system and reset mechanism, the gear transmission system comprises a driving gear pivotally arranged on the mounting seat, the power of the driving gear is transmitted to the screw gear through a driven gear, and the screw gear is coaxially fixed to the coaxial end of the corresponding push screw rod; the reset mechanism further comprises a reset gear engaged with the driving gear, and a belt transmission relationship is formed between the reset motor and the reset gear.

[0013] As a further scheme of the utility model: the working platform is provided with a mounting seat for mounting the clutch, gear transmission system and reset mechanism, the gear transmission system comprises a driving gear pivotally arranged on the mounting seat, the power of the driving gear is transmitted to the screw gear through a driven gear, and the screw gear is coaxially fixed to the coaxial end of the corresponding push screw rod; the reset mechanism further comprises a reset gear engaged with the driving gear, and a belt transmission relationship is formed between the reset motor and the reset gear.

[0014] As a further scheme of the utility model: the working platform is provided with a mounting seat for mounting the clutch, gear transmission system and reset mechanism, the gear transmission system comprises a driving gear pivotally arranged on the mounting seat, the power of the driving gear is transmitted to the screw gear through a driven gear, and the screw gear is coaxially fixed to the coaxial end of the corresponding push screw rod; the reset mechanism further comprises a reset gear engaged with the driving gear, and a belt transmission relationship is formed between the reset motor and the reset gear.

[0015] As a further scheme of the utility model: the working platform is provided with a mounting seat for mounting the clutch, gear transmission system and reset mechanism, the gear transmission system comprises a driving gear pivotally arranged on the mounting seat, the power of the driving gear is transmitted to the screw gear through a driven gear, and the screw gear is coaxially fixed to the coaxial end of the corresponding push screw rod; the reset mechanism further comprises a reset gear engaged with the driving gear, and a belt transmission relationship is formed between the reset motor and the reset gear.

[0016] As a further scheme of the utility model: still include base, the plumb installation column is set up on the base, the lifting seat is installed on the floating platform, and the rotation cooperation is formed with the installation column through the floating platform; still include transmission telescopic part, the both ends of transmission telescopic part are rotationally cooperated on the floating platform and the installation column, and the axis of each rotation place is horizontally arranged, so that the triangular installation system is formed among the three; transmission telescopic part includes the transmission chamber of the built-in worm and gear structure, the transmission chamber is rotationally cooperated on the installation column, the second adjusting hand wheel constitutes the power input end of transmission worm wheel at the worm and gear structure, the worm shaft end of worm and gear structure is coaxially cooperated with the transmission sleeve constituting the power output end, the cylinder cavity of transmission sleeve is coaxially screw cooperated with transmission threaded rod, and transmission threaded rod is rotationally cooperated with the floating platform.

[0017] As a further scheme of the utility model: the middle part of floating platform is rotationally cooperated with the installation column, transmission telescopic part is cooperated at one end of floating platform, the other end of floating platform is rotationally cooperated with the balance cylinder for passive telescopic, and the other end of balance cylinder forms rotation cooperation with the installation column, and the rotation axis of the both ends of balance cylinder is parallel with the rotation axis of floating platform.

[0018] Compared with the prior art, the utility model has the advantages that:

[0019] 1、 the utility model discloses a push table is driven by push screw rod and makes straight line sliding, and the steel pipe is pushed through the elbow die and the induction coil while advancing, and the elbow pushing process is completed, and the pushing precision is high, and the requirement to environment is lower, and the sustainable stable operation is realized, and the symmetry design of double screw rod structure improves the stability of pushing, and the pushing process is driven by gear transmission system, and single motor is used as power source to drive two sets of pushing screw rod to rotate synchronously, and power transmission is stable.

[0020] 2、 the utility model discloses that the power of driving motor is transmitted to gear transmission system through speed reducer and clutch, so as to drive two sets of pushing screw rod to rotate synchronously, and the power is realized by clutch to be on-off, and the clutch is connected with driving gear to transmit power when advancing, and the return gear meshing with driving gear drives return motor to idle at this time, and return motor does not work;When the clutch is disconnected with driving gear and stops transmitting power when retreating, the return motor works at this time, and the driving gear is reversed through belt drive, and the pushing screw rod is reversed while driving the push table to reset.

[0021] 3、 the transformer of the utility model is fixed on the adjusting platform, so as to advance linearly along the installation platform, and the front and back positions are adjusted, and the process of advancing and retreating is driven by bevel gear transmission to rotate screw rod through adjusting hand wheel, and the front and back positions can be quickly adjusted;The adjusting hand wheel is arranged on the side of transformer chamber in the mode of bevel gear transmission, and the staff operation is facilitated.

[0022] 4. The utility model discloses a motor drives the rotation of lifting screw rod, realizes the quick lifting of installation platform, can carry out the quick adjustment of the height of transformer, and the arrangement of double screw rod structure can drive the quick retreat and lifting adjustment of transformer.

[0023] 5. The utility model discloses a adjusting hand wheel drive transmission worm wheel rotation in transmission chamber, and transmission worm wheel is matched with worm simultaneously, drives transmission screw rod rotation, and transmission screw rod telescopes in transmission sleeve under the action of screw, thereby drives floating platform to pitch and sway, thereby adjusts the pitch angle of induction coil, makes induction coil and elbow mould coaxial arrangement, realizes the accurate adjustment of position, under the bidirectional support of transmission screw rod and balance cylinder, improved the stability of floating platform. DRAWINGS

[0024] Fig. 1 It is the structural diagram of the utility model.

[0025] Fig. 2 It is the structural diagram of gear transmission system of the utility model.

[0026] Fig. 3 It is the structural diagram in transformer chamber inside the utility model.

[0027] In the drawing:

[0028] 1, transformer chamber;11, base;12, mounting column;13, transmission chamber;

[0029] 131, transmission sleeve;132, transmission worm wheel;133, second adjusting hand wheel;

[0030] 14, transmission screw rod;15, floating platform;16, balance cylinder;17, lifting seat;

[0031] 171, lifting motor;172, lifting screw rod;

[0032] 18, installation platform;181, adjusting platform;182, pulley;183, adjusting guide rail;

[0033] 184, lifting screw rod sliding seat;185, first adjusting hand wheel;186, bevel gear transmission subassembly;

[0034] 187, horizontal screw rod sliding seat;188, straight line screw rod;189, transmission rod;

[0035] 19, transformer;191, induction coil;2, work platform;

[0036] 3, mounting seat;4, gear transmission system;

[0037] 41, driving gear; 42, driven gear; 43, screw gear; 44, reset motor;

[0038] 441, transmission belt; 45, clutch; 46, operating rod; 47, reset gear;

[0039] 5, driving motor; 51, speed reducer; 6, inner core; 7, steel pipe; 8, pushing screw; 9, pushing table. DETAILED DESCRIPTION

[0040] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0041] Please refer to Figs. 1-3 In the embodiments of the utility model, a elbow pushing machine comprises a working platform 2, the working platform 2 is provided with a mounting seat 3, the mounting seat 3 is provided with a hole for the inner core 6 to pass through, the inner core 6 is supported and fixed by the mounting seat 3, and the inner core 6 is arranged along the length direction of the working platform 2. The mounting seat 3 is installed with the pushing screw 8 located at the two sides of the inner core 6, the end of the two pushing screws 8 is provided with a rotating shaft, and the rotating shaft is rotationally matched with the mounting seat 3.

[0042] The pushing table 9 is installed on the working platform 2 and is slidingly matched with the working platform 2 along the length direction of the working platform 2. The table surface of the pushing table 9 is perpendicularly arranged with the inner core 6, the two ends of the pushing table 9 are matched with the screw block of the two pushing screws 8 respectively, the two groups of pushing screws 8 rotate at the same time, and drive the pushing table 9 to slide along the working platform 2. The pushing table 9 is provided with a guide hole, the guide hole corresponds in size with the inner core 6, the inner core 6 passes through the guide hole, the steel pipe 7 to be pushed is coaxially sleeved on the outer ring of the inner core 6, the pushing table 9 linearly travels at the same time, and pushes the steel pipe 7 to slide along the inner core 6. The end of the working platform 2 is provided with an elbow die, the inlet of the elbow die is coaxially arranged with the inner core 6, and there is a gap between the elbow die and the inner core 6 for the steel pipe 7 to pass through.

[0043] The mounting seat 3 is provided with a gear transmission system 4, the gear transmission system 4 comprises a screw gear 43 arranged at the rotating shaft end of the pushing screw 8, further comprises a group of driving gears 41, the driving gears 41 are meshed with the two groups of screw gears 43 through two groups of driven gears 42 respectively. The driving gears 41 rotate at the same time, drive the two groups of pushing screws 8 to rotate synchronously through gear meshing transmission. The mounting seat 3 is further provided with a reset gear 47 meshed with the driving gears 41, and the motor shaft of the reset motor 44 on the working platform 2 forms belt transmission with the gear shaft of the reset gear 47 through the transmission belt 441.

[0044] The work platform 2 is further provided with a driving motor 5, when the steel pipe 7 is pushed, the motor shaft of the driving motor 5 is connected with a speed reducer 51 through gear transmission, the driving shaft of the speed reducer 51 is connected with the driving gear 41 through a clutch 45 to transmit power. The clutch 45 is controlled by the operating rod 46 to realize the following two working states:

[0045] The clutch 45 is advanced, connected with the driving gear 41, the driving motor 5 drives the driving gear 41 to rotate through the speed reducer 51 and the clutch 45; in this state, the steel pipe 7 is pushed, and the reset motor 44 is not working.

[0046] The clutch 45 is retreated, disconnected with the driving gear 41; in this state, the reset motor 44 is started, drives the driving gear 41 to reverse through the transmission belt 441, so that the two push lead screws 8 are reversed, and the push table 9 is automatically reset.

[0047] The end of the work platform 2 is provided with a transformer room 1, which is located above the inner core 6 and avoids the position of the running path of the steel pipe 7. A mounting column 12 is vertically arranged on the base 11 at the bottom of the transformer room 1, a floating platform 15 is installed on the mounting column 12 through a rotating shaft, and the rotating axis of the floating platform 15 and the mounting column 12 is arranged in parallel with the push table 9.

[0048] The mounting column 12 is further provided with a transmission chamber 13 which is hingedly connected with the mounting column 12, a transmission worm gear 132 and a worm are installed in the transmission chamber 13, the axis of the transmission worm gear 132 and the rotating axis of the floating platform 15 are parallel to each other. A second adjusting hand wheel 133 is coaxially arranged on the transmission worm gear 132, by rotating the second adjusting hand wheel 133, the transmission worm gear 132 is driven to rotate, and the transmission worm gear 132 rotates at the same time to drive the worm to rotate through the worm gear and worm transmission.

[0049] The transmission chamber 13 is provided with a transmission sleeve 131 which is coaxially arranged with the worm, an internal thread is formed in the cylinder cavity of the transmission sleeve 131, and a transmission threaded rod 14 is installed in the transmission sleeve 131 and threadedly connected with the transmission sleeve 131. One end of the transmission threaded rod 14 located outside the transmission sleeve 131 is hingedly connected with the floating platform 15, the transmission sleeve 131 rotates synchronously with the worm, and at the same time, the transmission threaded rod 14 is threadedly connected with the transmission sleeve 131, the transmission threaded rod 14 extends and retracts in the transmission sleeve 131, thereby driving the floating platform 15 to pitch and yaw.

[0050] The mounting column 12 is further provided with a balance cylinder 16, the balance cylinder 16 is in a compressed state, and the two ends thereof are hingedly connected with the floating platform 15 and the mounting column 12 respectively, the balance cylinder 16, the floating platform 15 and the transmission threaded rod 14 are distributed in a triangular shape.

[0051] The lifting seat 17 is vertically arranged on the platform of the floating platform 15, and the installation platform 18 is slidably connected to the lifting seat 17 through the lifting screw sliding seat 184. The lifting motor 171 is installed on the top of the lifting seat 17, and the lifting screw 172 is arranged along the length direction of the lifting seat 17 and is in screw sliding block cooperation with the lifting screw sliding seat 184. The motor shaft of the lifting motor 171 is coaxially arranged with the lifting screw 172 to drive the installation platform 18 to ascend and descend along the lifting seat 17.

[0052] The installation platform 18 is arranged in parallel with the floating platform 15, and the adjusting guide rail 183 is arranged on the installation platform 18 along the length direction. The adjusting platform 181 is arranged above the adjusting guide rail 183, and the pulley 182 is arranged at the four corner ends of the adjusting platform 181 and is in clamping cooperation with the adjusting guide rail 183. After the transformer 19 is installed on the adjusting platform 181, the adjusting platform 181 is slid along the installation platform 18.

[0053] After the transformer 19 is installed, the power supply is connected to the inductive coil 191 fixed on the transformer 19, and the inductive coil 191 is arranged on the outer circle of the elbow die and is coaxially arranged with the elbow die after the front and back positions and the pitch angle are adjusted. The inductive coil 191 is designed in a split type, the upper part is directly installed on the transformer, and the lower part is in the shape of “Ω”. The upper and lower parts are connected into a whole through fasteners to ensure that the tooling will not be loose during use.

[0054] The linear screw 188 is installed on the installation platform 18 along the parallel adjusting guide rail 183, the horizontal screw sliding seat 187 is installed on the adjusting platform 181, the linear screw 188 and the horizontal screw sliding seat 187 are in screw sliding block cooperation to push the adjusting platform 181 to move linearly, the first adjusting hand wheel 185 is installed on the adjusting platform 181, the transmission rod 189 is coaxially arranged on the first adjusting hand wheel 185, the transmission rod 189 is arranged perpendicularly to the linear screw 188 and is driven through the bevel gear transmission assembly 186. The outer wall of the transformer chamber 1 is grooved to pass the transmission rod 189 of the first adjusting hand wheel 185 and the wheel rod of the second adjusting hand wheel 133.

[0055] The basic principles of the application are described above in combination with specific embodiments, but it should be pointed out that the advantages, advantages, effects and the like mentioned in the application are only examples and are not limited, and these advantages, advantages, effects and the like cannot be considered as the must-have of each embodiment of the application. In addition, the above specific details are only for the purpose of example and understanding, and are not limited to the above specific details to realize the application.

[0056] The block diagrams of the devices, apparatuses, equipment, systems referred to in this application are merely illustrative examples and are not intended to require or imply that the connections, arrangements, configurations must be as shown in the block diagrams. These devices, apparatuses, equipment, systems can be connected, arranged, configured in any manner as will be appreciated by those skilled in the art. Words such as "include," "comprise," "have," and the like, mean "including but not limited to," and are intended to be interpreted as open-ended terms, and are not intended to be interpreted as limiting. The words "or" and "and" as used herein, mean "and / or," unless otherwise explicitly stated. The word "such as" as used herein, means "such as but not limited to," and is intended to be interpreted as open-ended terms, and is not intended to be interpreted as limiting.

Claims

1. A bend-end pusher machine, characterized in that, The inner core (6) is arranged horizontally on the working platform (2). The working section of the inner core (6) is used to fit the steel pipe (7). An induction coil (191) for heating the steel pipe (7) and an elbow mold for bending the heated steel pipe are arranged sequentially along the forward path of the steel pipe (7). A pusher (9) is slidably fitted on the inner core (6). The front end of the pusher (9) forms the working surface for pushing the steel pipe (7) forward. Push screws (8) driven by a power source are arranged on both sides of the inner core (6). The pusher (9) and each push screw (8) form a screw-slider cooperation relationship.

2. The elbow pushing machine according to claim 1, characterized in that, The lead screws (8) are arranged in two sets and are symmetrical about the inner core (6) axis. The power source is a drive motor (5). The power of the power source is transmitted to the gear transmission system (4) via a reducer (51) and a clutch (45), thereby synchronously driving the lead screws (8) to rotate and relying on the clutch (45) to realize the power on and off operation. It also includes a reset mechanism for controlling the reset of the push table (9) when the clutch (45) is disengaged. The reset mechanism includes a reset motor (44), which is also geared to the gear transmission system (4).

3. The elbow pushing machine according to claim 2, characterized in that, The working platform (2) is provided with a mounting base (3) for the clutch (45), gear transmission system (4) and reset mechanism. The gear transmission system (4) includes a drive gear (41) that rotates and engages with the mounting base (3). The power of the drive gear (41) is transmitted to the lead screw gear (42) through the driven gear (43). The lead screw gear (42) is then coaxially fixed to the coaxial end of the corresponding push lead screw (8). The reset mechanism also includes a reset gear (47) that meshes with the drive gear (41). The reset motor (44) and the reset gear (47) form a belt drive relationship.

4. The elbow pushing machine according to claim 3, characterized in that, It also includes a lever (46) for controlling the clutch (45) to achieve power on / off operation, thereby realizing the following two working states: The clutch (45) moves forward and engages with the drive gear (41) to transmit power; The clutch (45) retracts and disconnects from the drive gear (41).

5. A bend-end pushing machine according to any one of claims 1 to 4, characterized in that, The working platform (2) is also equipped with a transformer room (1) for installing a transformer (19), so that the transformer (19) supplies power to the induction coil (191); the transformer room (1) is equipped with a lifting seat (17) and an installation platform (18) that is in vertical sliding fit with the lifting seat (17); the installation platform (18) is also provided with an adjustment guide rail (183) arranged along the pushing direction of the steel pipe; the transformer (19) is installed on the adjustment platform (181), and the adjustment platform (181) and the adjustment guide rail (183) form a guiding fit; the installation platform (18) is also provided with a linear screw (188) parallel to the guiding direction of the adjustment guide rail (183); the adjustment platform (181) is equipped with a horizontal screw slide (187), and the linear screw (188) and the horizontal screw slide (187) form a screw-slider fit.

6. A bend-end pushing machine according to claim 5, characterized in that, The adjustment platform (181) has a rotatable transmission rod (189) with a first adjustment handwheel (185) on one side. The transmission rod (189) is arranged perpendicularly to the linear lead screw (188) and the two are connected by a bevel gear transmission assembly (186).

7. A bend-end pushing machine according to claim 6, characterized in that, The bottom of the adjustment platform (181) is provided with a pulley (182), and the adjustment platform (181) and the adjustment guide rail (183) form a rolling guide relationship.

8. A bend-end pushing machine according to claim 5, characterized in that, A lifting motor (171) is installed on the lifting seat (17). A vertically arranged lifting screw (172) is coaxially arranged with the motor shaft of the lifting motor (171). A lifting screw slide (184) is arranged at the end of the mounting platform (18). The lifting screw slide (184) and the lifting screw (172) form a screw-slider cooperation.

9. A bend-end pushing machine according to claim 5, characterized in that, It also includes a base (11), on which a mounting column (12) is vertically mounted. The lifting seat (17) is mounted on the floating platform (15) and forms a rotary fit between the floating platform (15) and the mounting column (12). It also includes a transmission telescopic component, whose two ends are respectively rotary fitted on the floating platform (15) and the mounting column (12). The axes of each rotation are set horizontally, so that the three form a triangular installation system. The transmission telescopic component includes an internal worm gear. The transmission chamber (13) of the worm gear structure is rotatably fitted on the mounting column (12). The second adjusting handwheel (133) constitutes the power input end of the transmission worm wheel (132) in the worm gear structure. The worm shaft end of the worm gear structure is coaxially fitted with the transmission sleeve (131) which constitutes the power output end. The cylinder cavity of the transmission sleeve (131) is coaxially threaded with the transmission thread rod (14). The transmission thread rod (14) is rotatably fitted with the floating platform (15).

10. A bend-end pushing machine according to claim 9, characterized in that, The middle part of the floating platform (15) is rotatably engaged with the mounting column (12), and the transmission telescopic component is engaged at one end of the floating platform (15). The other end of the floating platform (15) is rotatably engaged with a balance cylinder (16) for passive telescopic movement, and the other end of the balance cylinder (16) is rotatably engaged with the mounting column (12). The rotation axes at both ends of the balance cylinder (16) are parallel to the rotation axis of the floating platform (15).

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