CN105179390B - A kind of impulse generator top casing - Google Patents

Abstract

The invention discloses a kind of impulse generator top casing, including lifting arm (1), glue cup (2), first shell (3), guide sleeve (4), oil-sealing arrangement (6), second housing (7), push rod (8) and piston component (9), glue cup (2) is arranged on the first shell (3), lifting arm (1) is arranged in glue cup (2), guide sleeve (4) is arranged on lifting arm (1), oil-sealing arrangement (6) is arranged on second housing (7) end, piston component (9) is arranged in second housing (7), push rod (8) is arranged on piston component (9), first shell (3) and second housing (7) detachable connection, lifting arm (1) and push rod (8) detachable connection.The present invention is by top casing global design into the first shell and second housing, and when glue cup is damaged need to only unload the first shell is changed, and is reduced maintenance cost, is extended the service life of whole device, and simple in construction.

Description

A top shell of a pulse generator

technical field

The invention relates to a top shell of a pulse generator and belongs to the technical field of pulse generators.

Background technique

The top casing of the existing pulse generator is usually a one-piece body, and the plastic cup arranged on it is the most prone to damage. The service life of the plastic cup is short, much lower than the service life of other parts of the pulse generator. When the top shell of the pulse generator adopts the one-piece traditional design, once the rubber cup is damaged, it cannot be replaced on site. Lifetime of the pulse generator.

Contents of the invention

The object of the present invention is to provide a pulse generator top shell, which integrally designs the top shell into two parts, the first shell and the second shell, instead of the traditional one-piece shell design, when the rubber cup is damaged, only Replacing the first shell reduces maintenance costs and prolongs the service life of the entire pulse generator.

The technical solution of the present invention: a top shell of a pulse generator, including a lifting rod, a plastic cup, a first shell, a guide sleeve, an oil seal device, a second shell, a push rod and a piston assembly, the plastic cup is arranged on the first shell, The lifting rod is arranged in the rubber cup, the guide sleeve is arranged on the lifting rod, the oil seal device is arranged at the end of the second casing, the piston assembly is arranged in the second casing, the push rod is arranged on the piston assembly, the first casing and the second casing Detachable connection, lifting rod and push rod are detachable connected. The top shell is integrally designed into two parts, the first shell and the second shell. When the rubber cup is damaged, only the first shell needs to be removed for replacement, which means that the service life of the entire pulse generator is extended and maintenance costs are saved. ; The setting of the oil seal device and the guide sleeve ensures that when the first shell and the second shell are separated, the hydraulic oil inside each will not leak, and the second shell can continue to work normally.

In the above-mentioned pulse generator top shell, the oil seal device includes a ball seat, an oil seal ball and a spring, the ball seat is arranged on the second shell, the end face of the ball seat is flush with the end face of the second shell, and the spring is arranged on the second shell. On the casing, the oil seal ball is movably arranged between the ball seat and the spring. The oil seal device adopts the combination design of oil seal ball, ball seat and spring, with simple structure and low cost.

The aforementioned pulse generator top shell also includes an "O" ring, and the "O" ring is arranged between the guide sleeve and the first shell. The arrangement of the "O" ring enhances the sealing between the guide sleeve and the first housing, which is simple and practical.

In the aforementioned top shell of the pulse generator, the first shell and the second shell are connected by threads, the lifting rod and the push rod are connected by threads, and the screw threads at the two connections have the same direction of rotation. The screw connection is simple and convenient, and the two threads have the same direction of rotation, which ensures that the upper and lower parts of the top shell of the pulse generator are more convenient to disassemble; both are left-handed threads, which are coordinated with the assembly and disassembly of other parts of the pulse generator.

Compared with the prior art, the present invention designs the top shell of the pulse generator as a split type, that is, the whole includes two parts, the first shell and the second shell, replacing the traditional one-piece shell design. When the rubber cup is damaged, only the The first shell needs to be removed for replacement instead of returning the entire pulse generator to the factory for maintenance, which reduces maintenance costs and prolongs the service life of the entire pulse generator. At the same time, under the action of the oil seal device and the guide sleeve, it can ensure When the first shell and the second shell are separated, the hydraulic oil in each of them will not leak, and the second shell can continue to work normally, which is suitable for popularization and application.

Description of drawings

Fig. 1 is the overall structural representation of the present invention;

Fig. 2 is a schematic diagram of a partial structure of the present invention.

The marks in the drawings are: 1-lifting rod, 2-plastic cup, 3-first housing, 4-guide sleeve, 5-"O" ring, 6-oil seal device, 7-second housing, 8-push Rod, 9-piston assembly, 10-ball seat, 11-oil seal ball, 12-spring.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

Embodiment 1 of the present invention: a top shell of a pulse generator, including a lifting rod 1, a rubber cup 2, a first shell 3, a guide sleeve 4, an oil seal device 6, a second shell 7, a push rod 8 and a piston assembly 9, The rubber cup 2 is set on the first shell 3, the lifting rod 1 is set in the rubber cup 2, the guide sleeve 4 is set on the lifting rod 1, the oil seal device 6 is set on the end of the second shell 7, and the piston assembly 9 is set on the second Inside the housing 7 , the push rod 8 is arranged on the piston assembly 9 , the first housing 3 is detachably connected to the second housing 7 , and the lifting rod 1 is detachably connected to the push rod 8 .

Wherein, the oil seal device 6 includes a ball seat 10, an oil seal ball 11 and a spring 12, the ball seat 10 is arranged on the second housing 7, the end face of the ball seat 10 is flush with the end face of the second housing 7, and the spring 12 is arranged on the second housing 7. On the housing 7 , an oil seal ball 11 is movably arranged between the ball seat 10 and the spring 12 .

Moreover, an "O" ring 5 is also included, and the "O" ring 5 is arranged between the guide sleeve 4 and the first housing 3 .

In addition, the first shell 3 and the second shell 7 are connected by threads, and the lifting rod 1 and the push rod 8 are connected by threads, and the screw threads at the two joints are left-handed in the same direction.

Embodiment 2 of the present invention: a top shell of a pulse generator, including a lifting rod 1, a rubber cup 2, a first shell 3, a guide sleeve 4, an oil seal device 6, a second shell 7, a push rod 8 and a piston assembly 9, The rubber cup 2 is set on the first shell 3, the lifting rod 1 is set in the rubber cup 2, the guide sleeve 4 is set on the lifting rod 1, the oil seal device 6 is set on the end of the second shell 7, and the piston assembly 9 is set on the second Inside the housing 7 , the push rod 8 is arranged on the piston assembly 9 , the first housing 3 is detachably connected to the second housing 7 , and the lifting rod 1 is detachably connected to the push rod 8 .

Wherein, the oil seal device 6 includes a ball seat 10, an oil seal ball 11 and a spring 12, the ball seat 10 is arranged on the second housing 7, the end face of the ball seat 10 is flush with the end face of the second housing 7, and the spring 12 is arranged on the second housing 7. On the housing 7 , an oil seal ball 11 is movably arranged between the ball seat 10 and the spring 12 .

Moreover, an "O" ring 5 is also included, and the "O" ring 5 is arranged between the guide sleeve 4 and the first housing 3 .

The use method of the present invention: in the natural state, under the pressure of the rubber cup 2, the guide sleeve 4 compresses the "O" ring 5, and when the first shell 3 and the second shell 7 are assembled together, the oil seal ball 11 There is a gap between the first shell 3 and the ball seat 10 under the extrusion. In the working state, under the pressure of the hydraulic oil, the piston assembly 9 is lifted up, the push rod 8 and the lifting rod 1 are jointly lifted up, and the guide sleeve 4 With the action of the lifting rod 1, the "O" ring 5 is no longer compressed, and the hydraulic oil flows through the gap between the ball seat 10 and the oil seal ball 11 and the gap between the guide sleeve 4 and the first shell 3; when the rubber cup 2 When damage occurs, remove the first shell 3, and under the action of the spring 12, the oil seal ball 11 contacts the ball seat 10 to realize the oil seal to the second shell 7, and under the pressure of the rubber cup 2, the guide sleeve 4 Re-compress the "O" ring 5 to prevent the hydraulic oil from leaking out and realize the oil seal to the first housing 3 . When the rubber cup 2 is damaged, it is only necessary to remove the first shell 3 for replacement, which is simple and convenient, and reduces the maintenance cost, and when the first shell 3 and the second shell 7 are separated, the hydraulic oil inside each will not leak, and the second The shell 7 can continue to work normally, thereby prolonging the service life of the entire pulse generator.

Claims (3)

1. A pulse generator top shell, characterized in that: comprising a lifting rod (1), a rubber cup (2), a first shell (3), a guide sleeve (4), an oil seal (6), a second shell ( 7), the push rod (8) and the piston assembly (9), the rubber cup (2) is set on the first shell (3), the lifting rod (1) is set in the rubber cup (2), and the guide sleeve (4) is set On the lifting rod (1), the oil seal device (6) is arranged at the end of the second casing (7), the piston assembly (9) is arranged in the second casing (7), and the push rod (8) is arranged on the piston assembly (9). ), the first housing (3) is detachably connected to the second housing (7), and the lifting rod (1) is detachably connected to the push rod (8); the oil seal device (6) includes a ball seat (10), an oil seal Small ball (11) and spring (12), ball seat (10) is arranged on the second shell (7), and the end face of ball seat (10) is flush with the end face of second shell (7), and spring (12) is arranged on On the second casing (7), an oil seal ball (11) is movably arranged between the ball seat (10) and the spring (12). 2. The top casing of the pulse generator according to claim 1, characterized in that: it also includes an "O" ring (5), and the "O" ring (5) is arranged between the guide sleeve (4) and the first casing ( 3) Between. 3. The top shell of the pulse generator according to claim 1, characterized in that: the first shell (3) and the second shell (7) are connected by threads, and the lifting rod (1) and the push rod (8) are connected by threads , and the threads at the two joints have the same direction of rotation.