CN210715684U

CN210715684U - Spring structure

Info

Publication number: CN210715684U
Application number: CN201921780688.4U
Authority: CN
Inventors: 吕道旺
Original assignee: Taizhou Meixin Spring Co Ltd
Current assignee: Taizhou Meixin Spring Co Ltd
Priority date: 2019-10-22
Filing date: 2019-10-22
Publication date: 2020-06-09
Anticipated expiration: 2029-10-22

Abstract

The utility model provides a spring structure belongs to mechanical technical field. The spring structure comprises a bottom plate and a spring body fixed on the bottom plate, wherein a buffer barrel is sleeved outside the spring body, the upper end and the lower end of the buffer barrel are respectively in a closed shape and an open shape, an annular flanging is integrally formed on the inner wall of the lower end of the buffer barrel, the bottom plate is horizontally arranged in the buffer barrel, the outer side wall of the bottom plate is attached to the inner side wall of the buffer barrel, two ends of the spring body are respectively abutted against the top wall and the bottom plate of the buffer barrel, and the annular flanging can be abutted against the bottom wall of the bottom plate under the action of the spring; the top wall of the bottom plate is provided with an annular groove for filling lubricating oil, an L-shaped oil duct is arranged in the bottom plate, one port of the oil duct is communicated with the annular groove, the other port of the oil duct is positioned on the outer side wall of the bottom plate, and at least two oil ducts are uniformly distributed along the circumferential direction of the buffer barrel. This spring structural stability is better.

Description

Spring structure

Technical Field

The utility model belongs to the technical field of machinery, a spring structure is related to.

Background

The spring is a mechanical part which works by utilizing elasticity, and the part made of elastic materials deforms under the action of external force and restores to the original shape after the external force is removed.

The existing spring is a compression spring as disclosed in chinese patent library [ application number: 201620912062.4 comprises a spring body, end face fixing panels are arranged on two end faces of the spring body, the spring body is a pair of cylindrical hollow spiral bodies, the fixing panels are cake panels with buckles for fixing the two spiral bodies of the spring body, and the buckles are arranged on the outer side of the spring body along the direction parallel to the central axis of the spring body.

When foretell spring was used and is possessing certain hydraulic operating mode under, water pressure impact spring can influence the flexible of spring to influence the job stabilization nature and the precision of spring.

SUMMERY OF THE UTILITY MODEL

The utility model aims at having the above-mentioned problem to current technique, provided a spring structure, the technical problem of solution is how to improve job stabilization nature.

The purpose of the utility model can be realized by the following technical proposal: a spring structure comprises a bottom plate and a spring body fixed on the bottom plate, and is characterized in that a buffer barrel is sleeved outside the spring body, the upper end and the lower end of the buffer barrel are respectively in a closed shape and an open shape, an annular flanging is integrally formed on the inner wall of the lower end of the buffer barrel, the bottom plate is horizontally arranged in the buffer barrel, the outer side wall of the bottom plate is attached to the inner side wall of the buffer barrel, two ends of the spring body are respectively abutted against the top wall and the bottom plate of the buffer barrel, and the annular flanging can be abutted against the bottom wall of the bottom plate under the action of the spring body; the oil-lubricating structure is characterized in that an annular groove used for filling lubricating oil is formed in the top wall of the bottom plate, an L-shaped oil duct is arranged in the bottom plate, one port of the oil duct is communicated with the annular groove, the other port of the oil duct is located on the outer side wall of the bottom plate, and at least two oil ducts are uniformly distributed along the circumferential direction of the buffer barrel.

In practical use, the bottom plate is in a fixed state, and the buffer barrel is pressed to move up and down relative to the bottom plate.

The spring body is wrapped in a closed cavity formed by the buffer barrel and the bottom plate, so that the spring body is protected, the spring body is ensured to stably complete telescopic motion, and the buffer effect is effectively improved; meanwhile, the lubricating oil lubricates the contact position of the bottom plate and the buffer barrel, and the smoothness and stability of the operation of the buffer barrel are ensured, so that the buffer effect and the precision are improved.

In foretell spring structure, the roof of buffering bucket on have along the oil filler point that vertical direction runs through the setting, and the oil filler point just to the ring channel notch, can dismantle on the buffering bucket and link firmly the shutoff piece that is used for shutoff oil filler point. When the lubricating oil feeding device is used, lubricating oil is added into the annular groove through the oil filling hole, so that the lubricating effect is prolonged.

In the spring structure, the oil filling hole is a threaded hole, the plugging piece is a bolt screwed in the oil filling hole, and the head of the bolt is positioned outside the buffer barrel.

As another scheme, in the spring structure, the blocking piece is a rubber plug inserted into the oil filling hole, the side wall of the rubber plug is tightly attached to the wall of the oil filling hole, and the upper end of the rubber plug extends out of the oil filling hole.

In the spring structure, the section of the annular groove in the axial direction of the buffer barrel is in a V shape, so that lubricating oil is favorably gathered at the bottom of the annular groove, and the lubricating oil can more smoothly enter the oil filling hole.

In the spring structure, the two ends of the spring body are fixedly connected with the bottom plate and the buffer barrel respectively in a welding mode.

Compared with the prior art, the spring structure has the following advantages:

1. the spring body wraps in the closed cavity body formed by the buffer barrel and the bottom plate, so that the spring body is protected, the spring body is ensured to stably complete telescopic motion, and the buffer effect is effectively improved.

2. Lubricating oil lubricates the contact position of the bottom plate and the buffer barrel, and ensures the smoothness and stability of the buffer barrel, thereby improving the buffer effect and precision.

Drawings

Fig. 1 is a schematic view of the present spring structure when not in operation.

Fig. 2 is a schematic view of the present spring structure in operation.

In the figure, 1, a bottom plate; 1a, an annular groove; 1b, an oil duct; 2. a spring body; 3. a buffer barrel; 3a, annular flanging; 3b, an oil filling hole; 4. a closure.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1, the spring structure includes a bottom plate 1 and a spring body 2 fixed on the bottom plate 1, wherein a buffer barrel 3 is sleeved outside the spring body 2, and the upper end and the lower end of the buffer barrel 3 are respectively in a closed shape and an open shape. Buffer barrel 3 and spring body 2 coaxial line are arranged, and during the in-service use, spring body 2 is vertical to be set up in buffer barrel 3.

Specifically, the inner wall of the lower end of the buffer barrel 3 is integrally formed with an annular flange 3a, and the annular flange 3a and the buffer barrel 3 are coaxially arranged. The horizontal setting of bottom plate 1 is in

buffer tank

3, and 1 lateral wall of bottom plate pastes with 3 inside walls of buffer tank and leans on. In this embodiment, it is preferable that the bottom plate 1 has a disk shape and the buffer tank 3 has a cylindrical shape. The two ends of the spring body 2 are respectively pressed on the top wall of the buffer barrel 3 and the bottom plate 1, and the annular flanging 3a can be pressed on the bottom wall of the bottom plate 1 under the action of the spring body 2. In this embodiment, the both ends of spring body 2 all link firmly with bottom plate 1 and buffer bucket 3 respectively through the welding mode.

As shown in fig. 1, an annular groove 1a for filling lubricating oil is formed in the top wall of the bottom plate 1, an L-shaped oil passage 1b is arranged in the bottom plate 1, one port of the oil passage 1b is communicated with the annular groove 1a, and the other port of the oil passage 1b is located on the outer side wall of the bottom plate 1, at this time, the lubricating oil in the annular groove 1a flows into the oil passage 1b to lubricate the contact surface between the buffer barrel 3 and the bottom plate 1.

Further, the oil passages 1b are at least two and are uniformly distributed along the circumferential direction of the buffer barrel 3, the top wall of the buffer barrel 3 is provided with oil injection holes 3b which penetrate through the buffer barrel 3 along the vertical direction, the oil injection holes 3b are opposite to the notch of the annular groove 1a, and the buffer barrel 3 is detachably and fixedly connected with a plugging piece 4 for plugging the oil injection holes 3 b. When in use, lubricating oil is added into the annular groove 1a through the oil filling hole 3b to prolong the lubricating effect. In this embodiment, the oil filling hole 3b is a threaded hole, the blocking piece 4 is a bolt screwed in the oil filling hole 3b, and the head of the bolt is located outside the buffer barrel 3.

As shown in fig. 1, the section of the annular groove 1a in the axial direction of the buffer barrel 3 is V-shaped, which is beneficial for the lubricating oil to gather at the bottom of the annular groove 1a, so that the lubricating oil can enter the oil filling hole 3b more smoothly.

In actual use, as shown in fig. 1 and 2, the bottom plate 1 is in a fixed state, and the buffer barrel 3 is pressed to move up and down relative to the bottom plate 1. The spring body 2 is wrapped in a closed cavity formed by the buffer barrel 3 and the bottom plate 1, so that the spring body 2 is protected, the spring body 2 is ensured to stably complete telescopic motion, and the buffer effect is effectively improved; meanwhile, the lubricating oil lubricates the contact part of the bottom plate 1 and the buffer barrel 3, and the smoothness and the stability of the operation of the buffer barrel 3 are ensured, so that the buffer effect and the precision are improved.

Example two

The second embodiment is basically the same as the first embodiment in structure and principle, and the difference lies in: the plugging piece 4 is a rubber plug inserted into the oil filling hole 3b, the side wall of the rubber plug is tightly attached to the wall of the oil filling hole 3b, and the upper end of the rubber plug extends out of the oil filling hole 3 b.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The spring structure comprises a bottom plate (1) and a spring body (2) fixed on the bottom plate (1), and is characterized in that a buffer barrel (3) is sleeved outside the spring body (2), the upper end and the lower end of the buffer barrel (3) are respectively in a closed shape and an open shape, an annular flanging (3a) is integrally formed on the inner wall of the lower end of the buffer barrel (3), the bottom plate (1) is horizontally arranged in the buffer barrel (3), the outer side wall of the bottom plate (1) is attached to the inner side wall of the buffer barrel (3), two ends of the spring body (2) are respectively abutted against the top wall of the buffer barrel (3) and the bottom plate (1), and the annular flanging (3a) can be abutted against the bottom wall of the bottom plate (1) under the action of the spring body (2); the oil-lubricating oil-filled oil cylinder is characterized in that an annular groove (1a) used for filling lubricating oil is formed in the top wall of the bottom plate (1), an L-shaped oil duct (1b) is arranged in the bottom plate (1), one port of the oil duct (1b) is communicated with the annular groove (1a), the other port of the oil duct (1b) is located on the outer side wall of the bottom plate (1), and at least two oil ducts (1b) are uniformly distributed along the circumferential direction of the buffer barrel (3).

2. The spring structure according to claim 1, characterized in that the top wall of the buffer barrel (3) is provided with an oil filling hole (3b) which is arranged to penetrate through along the vertical direction, the oil filling hole (3b) is opposite to the notch of the annular groove (1a), and the buffer barrel (3) is detachably and fixedly connected with a blocking piece (4) for blocking the oil filling hole (3 b).

3. The spring structure according to claim 2, wherein the oil injection hole (3b) is a threaded hole, the blocking piece (4) is a bolt screwed in the oil injection hole (3b), and the head of the bolt is positioned outside the buffer barrel (3).

4. The spring structure according to claim 2, wherein the blocking piece (4) is a rubber plug inserted into the oil filling hole (3b), the side wall of the rubber plug is tightly attached to the wall of the oil filling hole (3b), and the upper end of the rubber plug extends out of the oil filling hole (3 b).

5. The spring structure according to claim 1, wherein the annular groove (1a) has a V-shaped cross section in the axial direction of the buffer barrel (3).

6. The spring structure according to claim 1, wherein both ends of the spring body (2) are fixedly connected with the bottom plate (1) and the buffer barrel (3) respectively in a welding manner.