阅读说明：本技术 一种蓄能器及其装配工艺 (Energy accumulator and assembly process thereof ) 是由 张文 陶腾飞 陈龙 陈晓晓 于 2019-09-06 设计创作，主要内容包括：本发明一种蓄能器及其装配工艺,包含有外筒体(1),所述外筒体(1)的两端分别插接有阀体组件(2)和电磁铁组件(3),所述外筒体(1)内滑动设置有活塞组件(4),一蓄能弹簧(5)位于活塞组件(4)和电磁铁组件(3)之间,所述电磁铁组件(3)包含有推杆部件,所述推杆部件的头部外壁设置有环状结构的锥形槽(3.8),所述推杆部件固定套装于导向套(3.10)内,所述导向套(3.10)上设置有多个通孔(3.10.1),球体(3.16)嵌置于通孔(3.10.1)内后位于锥形槽(3.8)内。本发明一种蓄能器及其装配工艺,其结构简单且装配方便,并且蓄能和释放时操作简单。(The invention relates to an energy accumulator and an assembly process thereof, and the energy accumulator comprises an outer cylinder body (1), wherein a valve body assembly (2) and an electromagnet assembly (3) are respectively inserted into two ends of the outer cylinder body (1), a piston assembly (4) is arranged in the outer cylinder body (1) in a sliding manner, an energy storage spring (5) is positioned between the piston assembly (4) and the electromagnet assembly (3), the electromagnet assembly (3) comprises a push rod part, the outer wall of the head of the push rod part is provided with a conical groove (3.8) with an annular structure, the push rod part is fixedly sleeved in a guide sleeve (3.10), the guide sleeve (3.10) is provided with a plurality of through holes (3.10.1), and a ball body (3.16) is embedded in the through hole (3.10.1) and then positioned in the conical groove (3.8). The energy accumulator and the assembling process thereof have the advantages of simple structure, convenience in assembly and simplicity in operation during energy accumulation and release.)

1. The utility model provides an energy accumulator, includes outer barrel (1), it has valve body subassembly (2) and electromagnet assembly (3) to peg graft respectively at the both ends of outer barrel (1), it is provided with piston assembly (4) to slide in outer barrel (1), and an energy storage spring (5) are located between piston assembly (4) and electromagnet assembly (3), its characterized in that:

the electromagnet assembly (3) comprises a push rod part, wherein a conical groove (3.8) of an annular structure is formed in the outer wall of the head of the push rod part, the push rod part is fixedly sleeved in a guide sleeve (3.10), a plurality of through holes (3.10.1) are formed in the guide sleeve (3.10), a ball body (3.16) is embedded in the through hole (3.10.1) and then located in the conical groove (3.8), the diameter of the ball body (3.16) is smaller than the sum of the depth of the conical groove (3.8) and the hole depth of the through hole (3.10.1), the diameter of the ball body (3.16) is larger than the hole depth of the through hole (3.10.1), a spring seat (3.14) is slidably sleeved on the guide sleeve (3.10), the spring seat (3.14) covers the through hole (3.10.1), and a return spring (3.13) is located between the spring seat (3.14) and the guide sleeve (3.10); the inner diameter of a retainer ring (4.5) on the right end face of the piston assembly (4) is not less than the outer diameter of the guide sleeve (3.10).

2. The accumulator according to claim 1, characterized in that: an annular groove (3.10.2) is formed in the outer wall of the guide sleeve (3.10), a spring rib (3.14.1) for the return spring (3.13) to abut against is outwards turned at the left end of the spring seat (3.14), and a stopping rib (3.14.2) hung on the groove wall of the annular groove (3.10.2) is inwards turned at the right end of the spring seat (3.14); the guide sleeve (3.10) is fixedly sleeved on a fixed seat (3.12), and the fixed seat (3.12) is fixedly inserted at the right end of the outer cylinder body (1).

3. The accumulator according to claim 1, characterized in that: the valve body assembly (2) comprises a valve body connecting seat (2.1) fixedly inserted at the left end of the outer cylinder body (1), the valve body connecting seat (2.1) is inserted at one end in the inner cavity of the outer cylinder body (1) and welded with a valve seat (2.2), a hydraulic flow passage in the valve body connecting seat (2.1) is communicated with the inner cavity of the outer cylinder body (1) through a through hole at the center of the valve seat (2.2), a step hole is arranged at the position, close to the valve seat (2.2), of the hydraulic flow passage in the valve body connecting seat (2.1), the small-bore end of the step hole is of a taper hole structure, a valve core (2.3) is arranged in the large-bore end of the step hole in a sliding mode, the right end face of the valve core (2.3) is attached to the valve seat (2.2), raised lines are uniformly and annularly wound on the peripheral outer wall of the valve core (2.3), the left end of each raised line is an inclined plane attached to the inner wall of the taper hole, the left end of, the right end is jointed on the valve core (2.3).

4. The accumulator according to claim 2, characterized in that: the piston assembly (4) comprises a piston cylinder (4.1), the outer diameter of the piston cylinder (4.1) is matched with the inner diameter of the outer cylinder body (1), a spring clamping groove I of an annular structure is formed between a flange bent inwards at the left end of the piston cylinder (4.1) and the inner wall of the piston cylinder (4.1), a piston insert (4.3) is tightly matched in a piston seat (4.2), the piston seat (4.2) is inserted in the left end of the piston cylinder (4.1), the piston seat (4.2) is tightly matched and connected with the flange at the left end of the piston cylinder (4.1), a check ring (4.5) of the annular structure is positioned at one end of the piston seat (4.2) inserted in the piston cylinder (4.1), and a sealing ring (4.4) is sleeved on the piston seat (4.2); a spring clamping groove II of an annular structure is formed between the flanging of the right end of the fixing seat (3.12) which is bent outwards and the outer wall of the fixing seat (3.12), the flanging of the fixing seat (3.12) is tightly matched and connected with the outer barrel body (1), and two ends of the energy storage spring (5) are respectively located in the spring clamping groove I and the spring clamping groove II.

5. The accumulator according to claim 4, characterized in that: and the outer wall of the piston seat (4.2) on the right side of the piston insert (4.3) is provided with air holes.

6. The accumulator according to claim 1, characterized in that: the push rod component comprises an electromagnet valve core (3.1), a guide rod (3.2) is embedded in a through hole at the right end of the electromagnet valve core (3.1), a separation spring (3.3) is inserted into a through hole at the left end of the electromagnet valve core, an ejector rod (3.4) and a check ring (3.5) are embedded into the through hole at the right end of the electromagnet valve core, a tensioning spring (3.6) and a shaft sleeve (3.7) are sleeved on the outer wall of the electromagnet valve core (3.1), one end of the tensioning spring (3.6) abuts against the shoulder of the outer wall of the electromagnet valve core (3.1), and the other end of the tensioning spring.

7. An assembly process of an energy accumulator is characterized in that:

step 1, synchronously assembling all components:

preparing an outer cylinder body (1): the opening end of the right end of the outer cylinder body (1) is turned inwards to form a turnup of an annular structure;

assembling the valve body assembly (2): after a valve core (2.3) sleeved with a compression spring (2.4) is pressed into a hydraulic flow channel of a valve body connecting seat (2.1), a valve seat (2.2) is embedded into an opening end of the hydraulic flow channel, and then the valve body connecting seat (2.1) and the valve seat (2.2) are welded into a whole by adopting a hot melting welding mode;

assembling the electromagnet assembly (3):

firstly, a push rod component is assembled, a guide rod (3.2) is embedded into a through hole at the right end of an electromagnet valve core (3.1), a separation spring (3.3) is plugged into the through hole at the left end of the electromagnet valve core (3.1), then a push rod (3.4) and a check ring (3.5) are embedded and blocked, and then a tensioning spring (3.6) and a shaft sleeve (3.7) are sleeved on the outer wall of the electromagnet valve core (3.1);

after the push rod component is sleeved in the guide sleeve (3.10), the head of the push rod component is sleeved with the positioning sleeve (3.11), then the fixed seat (3.12) is fixedly connected to the guide sleeve (3.10), and then the coil component (3.15) is installed; then a return spring (3.13) is sleeved on the guide sleeve (3.10), then a spring seat (3.14) with a side seam is sleeved on the guide sleeve (3.10) after being pulled away, then the side seam of the spring seat (3.14) is welded and connected to form a complete annular structure, finally, after the semi-finished electromagnet assembly is vertically prevented, the spring seat (3.14) is pressed to move downwards to expose a through hole (3.10.1), a ball body (3.16) is embedded into the through hole (3.10.1), and then the spring seat (3.14) is released to cover the through hole (3.10.1) to prevent the ball body (3.16) from falling out;

assembling the piston assembly (4): the piston insert (4.3) is tightly inserted into the piston seat (4.2), then the piston seat (4.2) is tightly inserted into the left end of the piston cylinder (4.1), and the sealing ring (4.4) is sleeved on the piston seat (4.2);

step 2, inserting the electromagnet assembly (3) from the left end of the outer cylinder body (1) and then sliding the electromagnet assembly to the right end to be fixedly connected;

step 3, inserting the energy storage spring (5) and the piston assembly (4) into the outer cylinder (1) in sequence;

step 4, mounting the valve body assembly (2) at the left end of the outer cylinder body (1) and fastening;

and 5, testing, namely detecting the sealing performance, the electrical performance and the assembly performance of the energy accumulator.

Technical Field

The invention relates to an energy accumulator, in particular to an energy accumulator applied to a vehicle start and stop system and an assembly process thereof.

Background

At present, in consideration of energy conservation and consumption reduction, more and more vehicles are equipped with a start-stop system, and an energy accumulator is required in the start-stop system as a matched device to realize hydraulic energy storage and release (when the vehicle starts, the energy accumulator provides required gearbox oil for a gearbox shifting element), so that the effects of buffering and energy conservation are achieved in the start-stop process; however, the conventional energy accumulator has a complex structure and high manufacturing difficulty, so that the conventional energy accumulator is high in price; for this reason, many international factories have developed hydraulic accumulators having simple structures, such as "universal car globel scientific and technological operation llc" and a "hydraulic accumulator" having a patent number CN201210353717.5 applied in china from 2012, which is constructed such that it includes a housing having two ends; a piston slidably disposed within the housing interior; and a biasing member urging the piston toward one end of the housing, further comprising a fluid flow control device in communication with a fluid chamber defined by one end face of the piston and an inner surface of the housing, a desired amount of fluid entering and exiting the fluid chamber being controlled by the fluid flow control device in accordance with a desired pressure within the fluid chamber as determined by a pressure sensor, wherein the pressure sensor is also in communication with the fluid chamber. But it lacks the locking mechanical system rational in infrastructure and simple structure on the whole, and assembles inconveniently between overall structure spare and accessory parts, leads to inefficiency during large-scale batch production.

Disclosure of Invention

The invention aims to overcome the defects and provides an energy accumulator and an assembly process thereof, wherein the energy accumulator is simple in structure, convenient to assemble and simple to operate during energy storage and release.

The purpose of the invention is realized as follows:

an energy accumulator comprises an outer cylinder, wherein a valve body assembly and an electromagnet assembly are respectively inserted into two ends of the outer cylinder, a piston assembly is arranged in the outer cylinder in a sliding mode, and an energy storage spring is located between the piston assembly and the electromagnet assembly;

the electromagnet assembly comprises a push rod part, the outer wall of the head of the push rod part is provided with a conical groove of an annular structure, the push rod part is fixedly sleeved in a guide sleeve, the guide sleeve is provided with a plurality of through holes, a ball body is embedded in the through holes and then positioned in the conical groove, the diameter of the ball body is smaller than the sum of the depth of the conical groove and the depth of the through holes, the diameter of the ball body is larger than the depth of the through holes, a spring seat is sleeved on the guide sleeve in a sliding mode, the spring seat covers the through holes, and a reset spring is positioned between the spring seat and; and the inner diameter of the retainer ring on the right end surface of the piston assembly is not less than the outer diameter of the guide sleeve.

During energy storage, the piston assembly is forced to move rightwards by gearbox oil, so that the check ring is attached to the spring seat, then along with the continuous introduction of the gearbox oil, the check ring pushes the spring seat to continuously move backwards by overcoming the elastic force of the return spring, at the moment, a ball body (generally using steel balls) is exposed, and meanwhile, the push rod component moves rightwards, the ball body is upwards lifted and exposed out of the through hole under the guide of the side slope of the conical groove, and the exposed ball body is positioned on the left side of the check ring of the piston assembly, so that the piston assembly is prevented from;

when the piston is released, the push rod assembly moves leftwards, the ball body can be conveniently pushed to descend and reset, so that the blocking of the ball body to the check ring is eliminated, and at the moment, the piston assembly moves leftwards rapidly to release under the elastic action of the reset spring.

The invention relates to an energy accumulator, wherein an annular groove is formed in the outer wall of a guide sleeve, a spring flange for a return spring to abut against is outwards turned at the left end of a spring seat, and a stopping flange hung on the wall of the annular groove is inwards turned at the right end of the spring seat; the guide sleeve is fixedly sleeved on a fixed seat which is fixedly inserted at the right end of the outer cylinder.

The invention relates to an energy accumulator, wherein a valve body assembly comprises a valve body connecting seat fixedly inserted at the left end of an outer cylinder body, a valve seat is welded at one end inserted in an inner cavity of the outer cylinder body, a hydraulic flow passage in the valve body connecting seat is communicated to the inner cavity of the outer cylinder body through a through hole in the center of the valve seat, a step hole is formed in the position, close to the valve seat, of the hydraulic flow passage in the valve body connecting seat, a small-hole-diameter end of the step hole is of a conical hole structure, a valve core is arranged in a large-hole-diameter end of the step hole in a sliding mode, the right end face of the valve core is attached to the valve seat, raised lines are uniformly and annularly arranged on the peripheral outer wall of the valve core, the left end of each raised line is an inclined plane attached to the inner wall of the corresponding conical hole. Therefore, the valve core is gradually pushed to be attached to the valve seat during oil inlet, and the flow is gradually reduced; when the accumulator is released, the valve core is pushed to move leftwards, so that the flow is increased, and the transmission oil pressure required by combining the gear shifting elements is reached more quickly.

The invention relates to an energy accumulator, wherein a piston assembly comprises a piston cylinder, the outer diameter of the piston cylinder is matched with the inner diameter of an outer cylinder body, a spring clamping groove I with an annular structure is formed between a flange bent inwards at the left end of the piston cylinder and the inner wall of the piston cylinder, a piston insert is tightly matched in a piston seat, the piston seat is inserted at the left end of the piston cylinder and is tightly matched and connected with the flange at the left end of the piston cylinder, a check ring with the annular structure is positioned at one end of the piston seat inserted in the piston cylinder, and a sealing ring is sleeved on the piston seat; a spring clamping groove II of an annular structure is formed between the flanging of the right end of the fixing seat, which is bent outwards, and the outer wall of the fixing seat, the flanging of the fixing seat is tightly matched and connected with the outer barrel, and two ends of the energy storage spring are respectively positioned in the spring clamping groove I and the spring clamping groove II.

According to the energy accumulator, the outer wall of the piston seat, which is positioned on the right side of the piston insert, is provided with the air holes.

The invention relates to an energy accumulator, wherein a push rod component comprises an electromagnet valve core, a guide rod is embedded in a through hole at the right end of the electromagnet valve core, a separation spring is inserted into a through hole at the left end of the electromagnet valve core, and then an ejector rod and a retainer ring are embedded in the through hole at the left end of the electromagnet valve core;

an assembly process of an energy accumulator is disclosed,

step 1, synchronously assembling all components:

preparing an outer cylinder body: the opening end of the right end of the outer cylinder body is turned inwards to form a turnup of an annular structure;

assembling a valve body assembly: after the valve core sleeved with the compression spring is pressed into a hydraulic flow passage of the valve body connecting seat, the valve seat is embedded into an opening end of the hydraulic flow passage, and then the valve body connecting seat and the valve seat are integrated through fusion welding in a hot-melt welding mode;

assembling the electromagnet assembly:

firstly, assembling a push rod component, embedding a guide rod into a right end through hole of an electromagnet valve core, inserting a separation spring into a left end through hole of the electromagnet valve core, embedding a top rod and a check ring into a plug, and then sleeving a tension spring and a shaft sleeve on the outer wall of the electromagnet valve core;

after the push rod component is sleeved in the guide sleeve, the head of the push rod component is sleeved with the positioning sleeve, and then the coil component is installed after the fixed seat is fixedly connected to the guide sleeve; then the reset spring is sleeved on the guide sleeve, then the spring seat with the side seam is pulled open and sleeved on the guide sleeve, then the side seam of the spring seat is welded and connected to form a complete annular structure, finally, after the semi-finished electromagnet assembly is vertically prevented, the spring seat is pressed to move downwards to expose the through hole, the ball is embedded into the through hole, and then the spring seat is released to cover the through hole to prevent the ball from falling out;

assembling a piston assembly: the piston insert is tightly inserted into the piston seat, then the piston seat is tightly inserted into the left end of the piston cylinder, and the sealing ring is sleeved on the piston seat;

step 2, inserting the electromagnet assembly from the left end of the outer cylinder body and then sliding the electromagnet assembly to the right end to be fixedly connected;

step 3, inserting the energy storage spring and the piston assembly into the outer cylinder body in sequence;

step 4, mounting the valve body assembly at the left end of the outer cylinder body and fastening and connecting the valve body assembly;

and 5, testing, namely detecting the sealing performance, the electrical performance and the assembly performance of the energy accumulator.

Compared with the prior art, the invention has the beneficial effects that:

the locking of the piston assembly is realized through the plurality of steel balls on the electromagnet assembly, and the locking device is simple in structure and convenient to use; meanwhile, the modular design concept is adopted on the whole, and the components can be integrally assembled after being independently assembled and formed at the same time, so that the assembly efficiency is greatly improved, large-scale industrial production is facilitated, the manufacturing cost of an enterprise is reduced, and the market competitiveness of the enterprise is improved.

Drawings

Fig. 1 is a schematic structural diagram of an accumulator according to the present invention.

Fig. 2 is a schematic view of an assembly effect of an accumulator according to the present invention.

Fig. 3 is a schematic structural view of a valve body assembly of an accumulator according to the present invention.

Fig. 4 is a schematic structural diagram of a valve core of an accumulator according to the present invention.

Fig. 5 is a schematic view of a valve seat of an accumulator according to the present invention.

Fig. 6 is a schematic structural diagram of a push rod assembly of an accumulator according to the present invention.

Fig. 7 is a schematic view illustrating an assembly effect of a push rod assembly of an accumulator according to the present invention.

Fig. 8 is a partial structural view of a push rod assembly of an accumulator according to the present invention.

Fig. 9 is a schematic view illustrating a partial assembly effect of a push rod assembly of an accumulator according to the present invention.

Fig. 10 is a schematic view illustrating an assembly effect of a push rod assembly of an accumulator when a guide sleeve and a position sleeve are assembled.

Fig. 11 is a schematic view illustrating an assembly effect of an accumulator according to the present invention in which a fixing base is assembled on the basis of fig. 10.

Fig. 12 is a schematic view illustrating an assembly effect of an energy accumulator according to the present invention, in which a coil component is assembled on the basis of fig. 11.

Fig. 13 is a schematic structural view of the accumulator according to the present invention after assembling the steel ball on the basis of fig. 12.

Fig. 14 is a schematic view of a piston assembly of an accumulator according to the present invention.

Fig. 15 is a schematic view illustrating an assembly effect of a piston assembly of an accumulator according to the present invention.

Wherein:

the device comprises an outer cylinder 1, a valve body component 2, an electromagnet component 3, a piston component 4, an energy storage spring 5 and a fixing plate 6;

the valve body connecting seat 2.1, the valve seat 2.2, the valve core 2.3 and the compression spring 2.4;

a push rod member: the electromagnetic valve comprises an electromagnet valve core 3.1, a guide rod 3.2, a separation spring 3.3, an ejector rod 3.4, a retainer ring 3.5, a tension spring 3.6, a shaft sleeve 3.7 and a conical groove 3.8;

the device comprises a guide sleeve 3.10, a positioning sleeve 3.11, a fixed seat 3.12, a return spring 3.13, a spring seat 3.14, a coil component 3.15 and a ball 3.16;

a through hole 3.10.1, an annular groove 3.10.2;

a spring rib 3.14.1, a backstop rib 3.14.2;

piston cylinder 4.1, piston seat 4.2, piston insert 4.3, sealing washer 4.4, retaining ring 4.5.

Detailed Description

Referring to fig. 1 to 15, the energy accumulator according to the present invention includes an outer cylinder 1, a valve body assembly 2 and an electromagnet assembly 3 are respectively inserted into two ends of the outer cylinder 1, a piston assembly 4 is slidably disposed in the outer cylinder 1, and an energy storage spring 5 is disposed between the piston assembly 4 and the electromagnet assembly 3, and is characterized in that:

the electromagnet assembly 3 comprises a push rod part, the outer wall of the head of the push rod part is provided with a conical groove 3.8 of an annular structure, the push rod part is fixedly sleeved in a guide sleeve 3.10, the guide sleeve 3.10 is provided with a plurality of through holes 3.10.1, a ball 3.16 is embedded in the through hole 3.10.1 and then positioned in the conical groove 3.8, the diameter of the ball 3.16 is smaller than the sum of the depth of the conical groove 3.8 and the hole depth of the through hole 3.10.1, the diameter of the ball 3.16 is larger than the hole depth of the through hole 3.10.1, a spring seat 3.14 is slidably sleeved on the guide sleeve 3.10, the spring seat 3.14 covers the through hole 3.10.1, and a return spring 3.13 is positioned between the spring seat 3.14 and the guide sleeve 3.10;

the inner diameter of a retainer ring 4.5 on the right end face of the piston assembly 4 is not smaller than the outer diameter of the guide sleeve 3.10.

During energy storage, the transmission oil forces the piston assembly 4 to move rightwards, so that the retainer ring 4.5 is attached to the spring seat 3.14, then along with the continuous introduction of the transmission oil, the retainer ring 4.5 pushes the spring seat 3.14 to continuously move backwards by overcoming the elastic force of the return spring 3.13, at the moment, the ball 3.16 (generally, a steel ball is selected) is exposed, and meanwhile, the push rod part moves rightwards, the ball 3.16 is upwards lifted under the guide of the side slope of the tapered groove 3.8 and is exposed out of the through hole 3.10.1, and at the moment, the exposed ball 3.16 is positioned on the left side of the retainer ring 4.5 of the piston assembly 4, so that the piston assembly 4;

when the piston is released, the push rod assembly moves leftwards, the ball body 3.16 can be conveniently pushed to descend and reset at the moment, so that the blocking of the ball body 3.16 to the retainer ring 4.5 is eliminated, and at the moment, the piston assembly 4 moves leftwards rapidly to be released under the action of the elastic force of the reset spring 3.13;

furthermore, an annular groove 3.10.2 is arranged on the outer wall of the guide sleeve 3.10, the left end of the spring seat 3.14 is turned outwards to form a spring rib 3.14.1 against which the return spring 3.13 abuts, and the right end of the spring seat 3.14 is turned inwards to form a backstop rib 3.14.2 hung on the groove wall of the annular groove 3.10.2; the guide sleeve 3.10 is fixedly sleeved on a fixed seat 3.12, and the fixed seat 3.12 is fixedly inserted at the right end of the outer cylinder body 1;

further, the valve body assembly 2 comprises a valve body connecting seat 2.1 fixedly inserted at the left end of the outer cylinder 1, the valve body connecting seat 2.1 is inserted into one end of the inner cavity of the outer cylinder 1, a valve seat 2.2 is welded on the end, inserted into the inner cavity of the outer cylinder 1, of the valve body connecting seat 2.1, a hydraulic flow passage in the valve body connecting seat 2.1 is communicated to the inner cavity of the outer cylinder 1 through a through hole in the center of the valve seat 2.2, a step hole is formed in the position, close to the valve seat 2.2, of the hydraulic flow passage in the valve body connecting seat 2.1, a small-hole-diameter end of the step hole is of a conical-hole structure, the valve core 2.3 is arranged in the large-hole-diameter end of the step hole in a sliding mode, the right end face of the valve core 2.3 is attached to the valve seat 2.2, convex strips are uniformly and annularly wound on the peripheral outer wall of the valve core 2.3, the left; therefore, the valve core 2.3 is gradually pushed to be attached to the valve seat 2.2 during oil inlet, and the flow is gradually reduced; when the accumulator is released, the valve element 2.2 is pushed to the left, so that the flow rate is increased, which contributes to a faster reaching of the gearbox oil pressure required for the coupling of the shifting elements.

Further, the piston assembly 4 includes a piston cylinder 4.1, the outer diameter of the piston cylinder 4.1 is matched with the inner diameter of the outer cylinder 1, a first spring clamping groove of an annular structure is formed between a flange bent inwards at the left end of the piston cylinder 4.1 and the inner wall of the piston cylinder 4.1, a piston insert 4.3 is tightly fitted in the piston seat 4.2, the piston seat 4.2 is inserted into the left end of the piston cylinder 4.1, the piston seat 4.2 is tightly fitted and connected with the flange at the left end of the piston cylinder 4.1, a retainer ring 4.5 of the annular structure is located at one end of the piston seat 4.2 inserted into the piston cylinder 4.1, and a seal ring 4.4 is sleeved on the piston seat 4.2; a second spring clamping groove of an annular structure is formed between the outward bent flange at the right end of the fixed seat 3.12 and the outer wall of the fixed seat 3.12, the flange of the fixed seat 3.12 is tightly matched and connected with the outer barrel 1, and two ends of the energy storage spring 5 are respectively positioned in the first spring clamping groove and the second spring clamping groove;

furthermore, the outer wall of the piston seat 4.2, which is positioned on the right side of the piston insert 4.3, is provided with air holes;

furthermore, the push rod component comprises an electromagnet valve core 3.1, a guide rod 3.2 is embedded in a through hole at the right end of the electromagnet valve core 3.1, a separation spring 3.3 is inserted into a through hole at the left end, and then an ejector rod 3.4 and a retainer ring 3.5 are embedded, a tension spring 3.6 and a shaft sleeve 3.7 are sleeved on the outer wall of the electromagnet valve core 3.1, one end of the tension spring 3.6 abuts against the shoulder of the outer wall of the electromagnet valve core 3.1, and the other end abuts against the shaft sleeve 3.7;

an assembly process of an energy accumulator is characterized in that:

step 1, synchronously assembling all components:

preparing an outer cylinder body 1: the opening end of the right end of the outer cylinder body 1 is turned inwards to form a turnup with an annular structure;

assembling the valve body assembly 2: after the valve core 2.3 sleeved with the compression spring 2.4 is pressed into a hydraulic flow passage of the valve body connecting seat 2.1, the valve seat 2.2 is embedded into an opening end of the hydraulic flow passage, and then the valve body connecting seat 2.1 and the valve seat 2.2 are welded into a whole by adopting a hot melting welding mode;

assembling the electromagnet assembly 3:

firstly, assembling a push rod component, embedding a guide rod 3.2 into a right end through hole of an electromagnet valve core 3.1, inserting a separation spring 3.3 into a left end through hole of the electromagnet valve core 3.1, then embedding a top rod 3.4 and a retainer ring 3.5 into a plug, and then sleeving a tensioning spring 3.6 and a shaft sleeve 3.7 on the outer wall of the electromagnet valve core 3.1;

after the push rod component is sleeved in the guide sleeve 3.10, the positioning sleeve 3.11 is sleeved at the head part of the push rod component, then the fixed seat 3.12 is fixedly connected to the guide sleeve 3.10, and then the coil component 3.15 is installed; then the reset spring 3.13 is sleeved on the guide sleeve 3.10, then the spring seat 3.14 with the side seam is pulled open and sleeved on the guide sleeve 3.10, then the side seam of the spring seat 3.14 is welded and connected to form a complete annular structure, finally, after the semi-finished electromagnet assembly is vertically prevented, the spring seat 3.14 is pressed to move downwards to expose the through hole 3.10.1, the ball 3.16 is embedded into the through hole 3.10.1, and then the spring seat 3.14 is released to cover the through hole 3.10.1 to prevent the ball 3.16 from falling out;

assembling the piston assembly 4: the piston insert 4.3 is tightly inserted into the piston seat 4.2, then the piston seat 4.2 is tightly inserted into the left end of the piston cylinder 4.1, and the sealing ring 4.4 is sleeved on the piston seat 4.2;

step 2, inserting the electromagnet assembly 3 from the left end of the outer cylinder 1 and then sliding the electromagnet assembly to the right end to be fixedly connected;

step 3, inserting the energy storage spring 5 and the piston assembly 4 into the outer cylinder 1 in sequence;

step 4, mounting the valve body assembly 2 at the left end of the outer cylinder body 1 and fastening and connecting;

step 5, testing, namely detecting the sealing performance, the electrical performance and the assembly performance of the energy accumulator;

in addition: it should be noted that the above-mentioned embodiment is only a preferred embodiment of the present patent, and any modification or improvement made by those skilled in the art based on the above-mentioned conception is within the protection scope of the present patent.