CN108818406B

CN108818406B - Puller convenient to adjust

Info

Publication number: CN108818406B
Application number: CN201810992836.2A
Authority: CN
Inventors: 慕冉阳
Original assignee: Jiaxing Zhongguanghedian Technology Service Co ltd
Current assignee: Jiaxing Zhongguanghedian Technology Service Co ltd
Priority date: 2018-08-29
Filing date: 2018-08-29
Publication date: 2023-11-07
Anticipated expiration: 2038-08-29
Also published as: CN108818406A

Abstract

The invention discloses a convenient-to-adjust puller, which comprises a cross rod, two pull rods, pull seats, a threaded rod and a top, wherein the cross rod is provided with two slidable pull rods, the lower ends of the two pull rods are provided with the detachable pull seats, the middle of the cross rod is provided with the threaded rod in a penetrating way, and the lower end of the threaded rod is provided with the top.

Description

Puller convenient to adjust

[ field of technology ]

The invention relates to the technical field of a puller, in particular to the technical field of a puller convenient to adjust.

[ background Art ]

In the nuclear power overhaul process, parts such as bearings, impellers and the like which are arranged on a shaft system are often required to be disassembled, and a tool called a puller is required to be used. A screw mechanism is formed between a nut and a screw rod, the nut is fixed on a main body, and after a front end hook of a pull claw hooks a bearing firmly, the screw rod is rotated to enable the front end of the screw rod to be in contact with a shaft and continuously support the shaft forwards, so that the bearing can be disassembled. The length of the pull leg of the existing pull-horse is fixed, and the pull leg cannot be properly adjusted according to the needs, so that the application range is low.

[ invention ]

The invention aims to solve the problems in the prior art, and provides a puller which is convenient to adjust, can improve the application range and is convenient to adjust.

In order to achieve the above purpose, the invention provides a convenient-to-adjust puller, which comprises a cross rod, two pull rods, pull seats, a threaded rod and a top, wherein the two slidable pull rods are arranged on the cross rod, the lower ends of the two pull rods are provided with the detachable pull seats, the middle of the cross rod is penetrated with the threaded rod in threaded connection, the lower end of the threaded rod is provided with the top, the pull rod comprises a fixed rod, a sleeve rod, a plurality of fixed slots, two fixed hooks, a plurality of connecting arms, a base body, a sliding shaft, a pressing cap, a connecting seat, a sliding slot hole and two sliding bodies, the front side and the rear side of the fixed rod are respectively provided with the fixed slots which are uniformly distributed, the sleeve rod is sleeved on the fixed rod, the two fixed hooks are respectively positioned at the front side and the rear side of the sleeve rod and are hooked on the corresponding fixed slots, the lower end of each fixed hook is integrally formed with two connecting arms which are respectively in rotatable connection with the inner side and the outer side of the sleeve rod, the outer side of the sleeve rod is provided with the base body, the sliding shaft is penetrated with the sliding shaft, the upper end of the sliding cap is provided with the sliding seat, the sliding seat is meshed with the sliding seat is arranged at the upper end of the sliding seat, the sliding seat is meshed with the sliding seat, and the sliding seat is meshed with the sliding seat.

Preferably, the pull seat is provided with a U-shaped clamping groove.

Preferably, the lower end of the loop bar is provided with a base body, the front end of the base body is provided with a plugging groove for the pull seat to be inserted, the lower end of the plugging groove is provided with a bulge, and the pull seat is provided with a containing groove matched with the bulge.

The invention has the beneficial effects that: according to the invention, the fixed hook can be separated from the fixed groove by pressing the press cap upwards, then the loop bar can be pulled for adjustment, after the adjustment is completed, the press cap is loosened, and the fixed hook can be hooked in the fixed groove again; the outside of horizontal pole is equipped with the gear, the place ahead the outside of dead lever be equipped with the first rack of being connected with the upper end meshing of gear, the rear the outside of dead lever be equipped with the second rack of being connected with the lower extreme meshing of gear, can make two dead levers synchronous motion, make the top be located the positive center all the time, compare with prior art, can improve application scope to it is convenient to adjust.

The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.

[ description of the drawings ]

FIG. 1 is a schematic illustration of a pull-type puller with convenient adjustment according to the present invention;

fig. 2 is an enlarged view of a in fig. 1.

In the figure: the device comprises a 1-cross rod, a 2-pull rod, a 3-pull seat, a 4-threaded rod, a 5-plug, a 6-gear, a 7-first rack, an 8-second rack, a 9-U-shaped clamping groove, a 21-fixing rod, a 22-loop bar, a 23-fixing groove, a 24-fixing hook, a 25-connecting arm, a 26-seat body, a 27-sliding shaft, a 28-press cap, a 29-connecting seat, a 210-sliding groove hole, a 211-sliding body, a 212-spring, a 213-connecting seat body, a 214-inserting groove, a 215-bulge and a 216-containing groove.

[ detailed description ] of the invention

Referring to fig. 1 and 2, the pull-horse with convenient adjustment comprises a cross bar 1, two pull bars 2, pull seats 3, a threaded rod 4 and a plug 5, wherein the cross bar 1 is provided with two slidable pull bars 2, the lower ends of the two pull bars 2 are provided with the detachable pull seats 3, the middle of the cross bar 1 is penetrated with the threaded rod 4 in threaded connection, the lower end of the threaded rod 4 is provided with the plug 5, the pull bar 2 comprises a fixed bar 21, a sleeve bar 22, a plurality of fixed slots 23, two fixed hooks 24, a plurality of connecting arms 25, a base 26, a sliding shaft 27, a press cap 28, a connecting seat 29, a sliding slot hole 210 and two sliding bodies 211, the front side and the rear side of the fixed bar 21 are respectively provided with uniformly distributed fixed slots 23, the sleeve bar 22 is sleeved on the fixed bar 21, the two fixed hooks 24 are respectively positioned on the front side and the rear side of the sleeve bar 22 and hooked on the corresponding fixed slots 23, the lower end of each fixed hook 24 is integrally formed with two connecting arms 25 which are respectively rotatably connected with the inner side and the outer side of the loop bar 22, the outer side of the loop bar 22 is provided with a seat body 26, a sliding shaft 27 is penetrated on the seat body 26, the lower end of the sliding shaft 27 is provided with a pressing cap 28, a spring 212 is arranged on the sliding shaft 27 between the pressing cap 28 and the seat body 26, the upper end of the sliding shaft 27 is provided with a connecting seat 29, the connecting seat 29 is provided with two sliding groove holes 210, the lower ends of the two connecting arms 25 at the outer side extend and are provided with sliding bodies 211 in the corresponding sliding groove holes 210, the fixed bar 21 is sleeved on the cross bar 1, the outer side of the cross bar 1 is provided with a gear 6, the outer side of the fixed bar 21 at the front is provided with a first rack 7 which is meshed and connected with the upper end of the gear 6, the outer side of the fixed bar 21 at the rear is provided with a second rack 8 which is meshed and connected with the lower end of the gear 6, the pull seat 3 is provided with a U-shaped clamping groove 9, the lower end of the loop bar 22 is provided with a connecting seat body 213, the front end of the connecting seat body 213 is provided with a plug-in groove 214 for the pull seat 3 to be inserted into, the lower end of the plug-in groove 214 is provided with a bulge 215, and the pull seat 3 is provided with a containing groove 216 matched with the bulge 215.

The working process of the invention comprises the following steps:

in the working process of the convenient-to-adjust puller, a proper puller seat 3 is selected according to the diameter of a pulled bearing, two pull rods 2 are forced to move towards each other, the puller seat 3 is respectively inserted into the inserting grooves 214 and the protrusions 215 are ensured to be positioned in the accommodating grooves 216, then the puller seat 3 is ridden on a fixed shaft of the pulled bearing, the puller seat 3 is abutted against an inner ring of the bearing, then the threaded rod 4 is rotated to drive the top 5 to prop against the end face of the fixed shaft of the bearing, and then the threaded rod 4 is continuously rotated to move downwards until the bearing is dismounted.

When the pull rod 2 is adjusted, the push cap 28 is forced to push the spring 212 upwards and drive the sliding shaft 27 to move upwards, the sliding shaft 27 drives the connecting seat 29 to move upwards, the connecting seat 29 drives the connecting arm 25 to rotate through the cooperation of the sliding slot hole 210 and the sliding body 211, the connecting arm 25 drives the fixed hook 24 to rotate, the fixed hook 24 is separated from the fixed slot 23, then the sliding sleeve rod 22 can be adjusted, after the adjustment is finished, the push cap 28 is loosened, the push cap 28 drives the sliding shaft 27 to move downwards through the action of the spring 212, the sliding shaft 27 drives the connecting seat 29 to move downwards, the connecting seat 29 drives the connecting arm 25 to rotate through the cooperation of the sliding slot hole 210 and the sliding body 211, and the connecting arm 25 drives the fixed hook 24 to rotate, so that the fixed hook 24 is hooked on the corresponding fixed slot 23.

The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.

Claims

1. The utility model provides a convenient drawing horse of regulation which characterized in that: including horizontal pole (1), two pull rods (2), pull seat (3), threaded rod (4) and top (5), be equipped with two slidable pull rods (2) on horizontal pole (1), the lower extreme of two pull rods (2) is equipped with detachable pull seat (3), threaded rod (4) of threaded connection is worn to be equipped with in the centre of horizontal pole (1), the lower extreme of threaded rod (4) is equipped with top (5), pull rod (2) include dead lever (21), loop bar (22), a plurality of fixed slots (23), two fixed hooks (24), a plurality of linking arm (25), pedestal (26), sliding shaft (27), press cap (28), linking seat (29), spout hole (210) and two slide bodies (211), the front and back both sides of dead lever (21) all are equipped with evenly distributed's fixed slot (23), loop bar (22) cover are established on dead lever (21), two fixed hooks (24) are located the front and back both sides of dead lever (21) respectively and are hooked on corresponding fixed slot (23), two sides of each loop bar (24) can be equipped with rotation both sides of the tie rod (22) respectively, the both sides of linking arm (22) are equipped with the pedestal (22) respectively, the sliding mechanism comprises a base body (26), wherein a sliding shaft (27) is arranged on the base body (26) in a penetrating manner, a pressing cap (28) is arranged at the lower end of the sliding shaft (27), a spring (212) is arranged on the sliding shaft (27) between the pressing cap (28) and the base body (26), a connecting seat (29) is arranged at the upper end of the sliding shaft (27), two sliding groove holes (210) are formed in the connecting seat (29), sliding bodies (211) are arranged in the corresponding sliding groove holes (210) in a extending manner at the lower ends of two connecting arms (25) at the outer side, a fixing rod (21) is sleeved on a cross rod (1), a gear (6) is arranged at the outer side of the cross rod (1), a first rack (7) in meshed connection with the upper end of the gear (6) is arranged at the outer side of the fixing rod (21), and a second rack (8) in meshed connection with the lower end of the gear (6) is arranged at the outer side of the fixing rod (21) at the rear side. A U-shaped clamping groove (9) is formed in the pull seat (3); the lower extreme of loop bar (22) is equipped with connecting seat body (213), the front end of connecting seat body (213) is equipped with can supply to draw seat (3) male spliced groove (214), the lower extreme of spliced groove (214) is equipped with protruding (215), draw seat (3) on be equipped with protruding (215) matched with holding tank (216).