CN212055345U

CN212055345U - Buffer device

Info

Publication number: CN212055345U
Application number: CN202020659651.2U
Authority: CN
Inventors: 陆文益
Original assignee: Zhangjiagang Tuo Sheng Machinery Technology Co ltd
Current assignee: Zhangjiagang Tuo Sheng Machinery Technology Co ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2020-12-01
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses a buffer, including one end open-ended hollow casing, insert the slide shaft of locating in the casing, locate the slide shaft tip and be located the buffer of casing, locate the inner peripheral part of casing opening part's the barrier part that is used for blockking the buffer, form the cushion chamber between the other end inner wall of barrier part and casing, the buffer can be along the gliding buffer intracavity of locating of the one end of casing to the direction of the other end, buffer is still including connecting the elastic component of the ascending at least one end in buffer sliding direction, set up the gas pocket that just is linked together with the cushion chamber on the casing, the gas pocket just is located the slide path of buffer with the setting of elastic component one-to-one, the buffer can be in its slip in-process complex block or break away from the gas pocket. The utility model discloses a buffer can realize thrust and tensile buffering at the gliding in-process of buffering portion, the effectual inertial impact force that has slowed down driving system.

Description

Buffer device

Technical Field

The utility model relates to the field of mechanical equipment, concretely relates to buffer.

Background

In the field of mechanical equipment, a power system is usually used to drive an object to move so as to realize a series of mechanical operations. For example, in a die assembly oil cylinder of a blow molding machine, one side die is in a fixed state, the other side die is connected to the end part of a piston rod of the oil cylinder, and the oil cylinder drives the die to be in die assembly; like in the automatic fixed length cutting machine again, it removes through cylinder drive cutting platform, and the back is accomplished in the cutting, draws back cutting platform through the cylinder pole.

However, during the above mechanical operation, the driving force of the power system is large, and if the driving force cannot be effectively buffered, the equipment is damaged, and the service life of the equipment is affected. For example, in a mold closing oil cylinder of a blow molding machine, molds on two sides are in hard contact during film closing, so that large impact force of mold closing can be generated, and the molds, the oil cylinder and even a rack are damaged due to impact vibration; in the automatic fixed-length cutting machine, the air cylinder pulls the platform backwards, and huge inertia impact force can be generated when the platform moves in place and is in contact with the rack, so that the platform, equipment on the platform and the rack are vibrated and damaged.

At present, buffering is generally performed by arranging buffering plastic or rubber on a rack, but the plastic or rubber in the mode is easy to damage, and the buffering effect is poor.

Disclosure of Invention

The utility model aims at overcoming the not enough of prior art, provide a buffer that can effectively slow down driving system's inertia impact force.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

a buffer device comprises a hollow shell with an opening at one end, a sliding shaft inserted in the shell, a buffer part arranged at the end part of the sliding shaft and positioned in the shell, and a blocking part arranged at the inner peripheral side part of the opening of the shell and used for blocking the buffer part, a buffer cavity is formed between the blocking part and the inner wall of the other end of the shell, the buffer part can be arranged in the buffer cavity in a sliding way along the direction from one end to the other end of the shell, the buffer device also comprises an elastic piece connected with at least one end of the buffer part in the sliding direction, an air hole which is arranged on the shell and communicated with the buffer cavity, the air holes are in one-to-one correspondence with the elastic pieces and are located on the sliding path of the buffer part, and the buffer part can be matched with and block or separate from the air holes in the sliding process of the buffer part.

Preferably, buffer still includes slidable locate first regulating part on the slide shaft, be used for locking the first locking piece of first regulating part, first regulating part can the complex inlay locate in the opening of casing, the elastic component is around locating slide shaft week side and its one end connect in on the first regulating part, the other end connect in buffer is close to the one end of blocking part.

Preferably, one end of the elastic element is connected to one end of the buffering part far away from the blocking part, and the other end of the elastic element is connected to one end of the shell far away from the opening.

Further preferably, the buffering device further comprises a second adjusting member slidably inserted into an end portion of the buffering portion far away from the blocking portion, and a second locking member for locking the second adjusting member, wherein one end of the elastic member is connected to the second adjusting member.

Still further preferably, the buffering device further comprises a first connecting piece arranged at one end, far away from the opening, of the shell, and the other end of the elastic piece is connected to the first connecting piece.

Preferably, the elastic member includes a first elastic member and a second elastic member respectively connected to both ends of the buffer portion in the sliding direction.

Further preferably, buffer still includes slidable locates first regulating part on the slide shaft, be used for locking the first locking piece of first regulating part, first regulating part can the complex inlay locate in the opening of casing, first elastic component is around locating slide shaft week side, the one end of first elastic component connect in on the first regulating part, the other end connect in the buffer is close to the one end of blocking part.

Still further preferably, the buffering device further comprises a first connecting piece arranged at one end, far away from the opening, of the shell, a second adjusting piece slidably inserted into one end, far away from the blocking portion, of the buffering portion, and a second locking piece used for locking the second adjusting piece, wherein one end of the second elastic piece is connected to the first connecting piece, and the other end of the second elastic piece is connected to the second adjusting piece.

Preferably, buffer still includes mobilizable locating the casing is kept away from the first connecting piece of opening one end, mobilizable locating week side of first connecting piece is used for the locking a plurality of third retaining members of first connecting piece, a plurality of third retaining members set up and with respectively along horizontal direction and vertical direction the axial of first connecting piece is mutually perpendicular.

Further preferably, the buffering device further comprises a second connecting piece arranged at one end, far away from the buffering part, of the sliding shaft, and the second connecting piece and the sliding shaft are fixedly connected or integrally arranged.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: the buffering device of the utility model can realize the buffering of thrust and pulling force in the sliding process of the buffering part by matching the buffering part with the elastic part arranged at least one end of the buffering part, thereby effectively slowing down the inertia impact force of the power system; set up the gas pocket corresponding with the elastic component simultaneously, the in-process of buffer portion motion can block the gas pocket for can form airtight space in the buffer chamber, buffer portion continues to remove can compressed air, utilizes atmospheric pressure to realize the secondary buffering, has further strengthened buffering effect.

Drawings

Fig. 1 is a schematic structural view of a buffer device according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a buffer device according to embodiment 2 of the present invention;

fig. 3 is a schematic structural view of a buffer device according to embodiment 3 of the present invention;

FIG. 4 is a schematic view of the orientation A-A of FIGS. 1-3;

fig. 5 is a schematic structural view of a buffer device according to an embodiment of the present invention, in which the first connecting member is a flange.

Wherein: 1. a housing; 2. a sliding shaft; 3. a buffer section; 4. a blocking portion; 5. a buffer chamber; 6. an elastic member; 61. a first elastic member; 62. a second elastic member; 7. air holes; 8. a first adjustment member; 9. a first locking member; 10. a second adjustment member; 11. a second locking member; 12. a first connecting member; 13. a third locking member; 14. a second connecting member.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

The utility model relates to an innovation in the field of buffering of moving components, and provides a buffering device, which is matched with an elastic part arranged at least one end of a buffering part through the buffering part, so that the buffering of thrust and tension can be realized in the sliding process of the buffering part, and the inertia impact force of a power system is effectively slowed down; set up the gas pocket corresponding with the elastic component simultaneously, the in-process of buffer portion motion can block the gas pocket for can form airtight space in the buffer chamber, buffer portion continues to remove can compressed air, utilizes atmospheric pressure to realize the secondary buffering, has further strengthened buffering effect.

See the following specific examples.

Example 1

Referring to fig. 1 and 4, a buffering device is shown, which includes a hollow housing 1 with an opening at one end, a sliding shaft 2 inserted into the housing 1, a buffering portion 3 disposed at an end of the sliding shaft 2 and located in the housing 1, and a blocking portion 4 disposed at an inner peripheral side portion of the opening of the housing 1 and used for blocking the buffering portion 3, wherein a buffering cavity 5 is formed between the blocking portion 4 and an inner wall of the other end of the housing 1, and the buffering portion 3 is slidably disposed in the buffering cavity 5 along a direction from one end of the housing 1 to the other end. Here, the blocking portion 4 is an annular protrusion provided on the inner wall of the housing 1 for preventing the buffer portion 3 from coming out of the opening.

In this embodiment, the buffering device further includes an elastic member 6 connected to one end of the buffering portion 3 in the sliding direction, and an air hole 7 opened on the housing 1 and communicated with the buffering chamber 5, wherein the air hole 7 is disposed corresponding to the elastic member 6 and located on the sliding path of the buffering portion 3, and the buffering portion 3 can be engaged with and blocked or separated from the air hole 7 during the sliding process. Here, the elastic member 6 is a spring, is located between the buffer 3 and the opening, and is wound around the slide shaft 2, and the air hole 7 is located in the housing 1 between the buffer 3 and the opening. The sliding shaft 2 is connected to a driving shaft of a power system of the equipment, the other end of the shell 1 is connected to a moving object, and when the sliding shaft 2 is pulled backwards, the buffer part 3 compresses the spring to generate a certain buffer force to offset the driving force of the power system to a certain degree; and when the buffer part 3 reaches the air hole 7 and blocks the air hole 7, a closed space is formed in the buffer cavity 5, the buffer part 3 continues to move to compress air in the closed space, and further buffer is formed by utilizing air pressure, so that the movement speed of the moving object can be slowed down, the moving object and the equipment frame can be more gently touched, and the damage of the equipment is avoided.

The buffer device also comprises a first connecting piece 12 movably arranged at one end of the shell 1 far away from the opening, a third locking piece 13 movably arranged at the peripheral side of the first connecting piece 12 and used for locking the first connecting piece 12, and a second connecting piece 14 arranged at one end of the sliding shaft 2 far away from the buffer part 3.

Here, the end of the housing 1 away from the opening is provided with a movable cavity, and the first connecting member 12 is a connecting bolt which can move in the movable cavity along a direction perpendicular to the axial direction of the housing 1 to adapt to the connection of the moving object at different positions. After the position of the first connecting piece is adjusted, the first connecting piece 12 is locked by using the third locking piece 13 on the peripheral side of the first connecting piece, wherein the number of the third locking pieces 13 is four, the four third locking pieces are respectively arranged along the horizontal direction and the vertical direction and are perpendicular to the axial direction of the first connecting piece 12, and the third locking pieces are used for abutting against the first connecting piece 12 from four directions and fixing the first connecting piece 12 at the corresponding eccentric position. The eccentric connection design is used, so that the power system and the moving object are not connected to transmit the same moving force under the condition of a straight line, the power system and the object are not damaged when moving, and the moving force is kept normal. The connecting bolt is sleeved with a fixing nut and a connecting nut, the fixing nut is used for abutting the first connecting piece 12 on the shell 1, and the connecting nut is used for fastening the first connecting piece 12 and a moving object.

In this embodiment, the first connecting member 12 is further provided with an internal thread for adapting to the connection of different objects; meanwhile, as shown in fig. 5, the first connecting member 12 in this embodiment may also be a connecting flange, which is specifically selected as needed. The second connecting member 14 is a connecting portion integrally provided with the sliding shaft 2, and is provided with an external thread and an internal thread for connecting a driving rod of a power system.

In this embodiment, the damping device further includes a first adjusting member 8 slidably disposed on the sliding shaft 2, and a first locking member 9 for locking the first adjusting member 8, wherein the first adjusting member 8 can be fittingly inserted into the opening of the housing 1, and one end of the elastic member 6 is connected to the first adjusting member 8, and the other end is connected to one end of the damping portion 3 close to the blocking portion 4. The first adjusting part 8 is an adjusting nut, the first locking part 9 is a locking screw, the initial state of the elastic part 6 can be adjusted by sliding the adjusting nut on the sliding shaft 2, so that the initial pressure of the elastic part 6 is adjusted to adapt to buffering of different conditions, and the adjusting nut is fastened by the locking screw after the adjustment is finished.

In this embodiment, the buffering device further includes self-lubricating bearings respectively disposed between the sliding shaft 2 and the first adjusting member 8 and between the buffering portion 3 and the buffering cavity 5, and a dust-proof sealing ring disposed at the opening and located between the sliding shaft 2 and the first adjusting member 8.

Specific applications of this embodiment are as follows:

install the buffer of this embodiment on automatic fixed length cutting machine's platform removes the cylinder. When the platform moves along with the object to be cut, the air cylinder rod extends out, wherein the buffer device is installed at the end of the air cylinder rod, the air cylinder needs to be pulled back to the platform after the cutting is completed each time, the air cylinder pulls the platform backwards through the buffer device to move, when the platform moves backwards, the buffer part 3 compresses the elastic part 6 to generate certain resistance, the air hole is blocked and the air is compressed after the air hole is reached, the buffer part utilizes the spring and the air to buffer, the motion speed of the platform is weakened, the motion is stopped gradually and stably, the damage of equipment is avoided, and the service life of the equipment is prolonged.

Example 2

In the present embodiment, as shown in fig. 2 and 4, the difference from embodiment 1 is that: the elastic element 6 is located between the buffer part 3 and the end of the housing 1 far from the opening, one end of the elastic element is connected to the end of the buffer part 3 far from the blocking part 4, and the other end is connected to the first connecting element 12. Correspondingly, the air hole 7 is also located on the housing 1 between the buffer 3 and the end of the housing 1 remote from the opening.

The sliding shaft 2 is connected to a driving shaft of a power system of the equipment, the other end of the shell 1 is connected to a moving object, and when the sliding shaft 2 is pushed forwards, the buffer part 3 compresses the spring to generate a certain buffer force to offset the driving force of the power system to a certain degree; and when the buffer part 3 reaches the air hole 7 and blocks the air hole 7, a closed space is formed in the buffer cavity 5, the buffer part 3 continues to move to compress air in the closed space, and further buffer is formed by utilizing air pressure, so that the moving object can be in more gentle contact with the matched object, and the damage of equipment is avoided.

The buffering device further comprises a second adjusting piece 10 which is slidably inserted into one end part of the buffering part 3 far away from the blocking part 4, a second locking piece 11 used for locking the second adjusting piece 10, and one end of the elastic piece 6 is connected onto the second adjusting piece 10. Here, the second adjusting member 10 is an adjusting screw, the second locking member 11 is a stopping nut, the initial state of the elastic member 6 is adjusted by the adjusting screw, so that the initial pressure of the elastic member 6 is adjusted to adapt to buffering of different situations, and the adjusting screw is fastened by the stopping nut after the adjustment is completed.

In the present embodiment, the dust seal is disposed between the slide shaft 2 and the inner wall of the opening.

Specific applications of this embodiment are as follows:

install the buffer of this embodiment on the compound die hydro-cylinder of blowing machine, one side mould fixed state of blowing machine, the opposite side mould is promoted by the hydro-cylinder and is carried out the compound die, when both sides mould contact, buffer 3 compresses the spring at the slip in-process, block the gas pocket and compress the air after reaching the gas pocket, utilize spring and air to cushion, the drive power of hydro-cylinder has been slowed down to a certain extent, make the contact that both sides mould can be more gentle, make compound die speed pressure weaken, accurate compound die, when reaching certain pressure, the buffering stops, utilize the thrust of hydro-cylinder to continue the compound die and compress tightly.

Example 3

In the present embodiment, as shown in fig. 3 and 4, the difference from

embodiments

1 and 2 is that: the number of the elastic members 6 is two, including a first elastic member 61 and a second elastic member 62 respectively connected to two ends of the buffer portion 3 in the sliding direction, wherein the first elastic member 61 is located between the buffer portion 3 and the opening and wound on the sliding shaft 2, and the second elastic member 62 is located between the buffer portion 3 and one end of the housing 1 away from the opening, and correspondingly, the number of the air holes 7 is also two, and the two elastic members are respectively arranged corresponding to the first elastic member 61 and the second elastic member 62.

Specifically, both ends of the first elastic member 61 are connected to the first adjusting member 8 and the cushioning portion 3, respectively, and both ends of the second elastic member 62 are connected to the first connecting member 12 and the second adjusting member 10, respectively, and the first adjusting member 8 and the second adjusting member 10 are capable of adjusting initial pressures of the first elastic member 61 and the second elastic member 62, respectively.

The buffer device in this example can play a corresponding buffer role no matter the sliding shaft 2 is driven by the power system to push forwards or pull backwards. When the sliding shaft 2 is pulled backwards, the buffer part 3 compresses the first elastic piece 61 to generate a certain buffer force, the driving force of a power system is counteracted to a certain degree, when the buffer part 3 reaches the air hole 7 and blocks the air hole 7, a closed space is formed in the buffer cavity 5, the buffer part 3 continues to move to compress air in the closed space, further buffer is formed by air pressure, and therefore the moving speed of a moving object can be reduced; when the sliding shaft 2 is pushed forward, the buffer part 3 compresses the second elastic part 62 to generate a certain buffer force, the driving force of a power system is offset to a certain degree, when the buffer part 3 reaches the air hole 7 and blocks the air hole 7, a closed space is formed in the buffer cavity 5, the buffer part 3 continues to move to compress air in the closed space, further buffer is formed by utilizing air pressure, and therefore the moving object can be in more gentle contact with a matched object, and the damage of equipment is avoided.

Meanwhile, the buffer device in the embodiment can also be applied to the buffer between two moving objects which move oppositely or oppositely; the buffer device can also be simultaneously arranged at two ends of the same moving object, so that the two ends of the moving object can be buffered.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and the protection scope of the present invention can not be limited thereby, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. A cushioning device, characterized by: buffer includes one end open-ended hollow casing (1), inserts and locates slide shaft (2) in casing (1), locates slide shaft (2) tip just is located buffer (3) in casing (1), locate being used for of the interior week lateral part of casing (1) opening part stops block (4) of buffer (3), block (4) with form cushion chamber (5) between the other end inner wall of casing (1), buffer (3) can along the gliding locating of one end to the direction of the other end of casing (1) in cushion chamber (5), buffer still including connect in elastic component (6) of at least one end in buffer (3) sliding direction, set up on casing (1) and with air pocket (7) that cushion chamber (5) are linked together, air pocket (7) with the setting of elastic component (6) one-to-one and being located buffer (3) ) The buffer part (3) can be matched to block or separate from the air hole (7) in the sliding process of the buffer part.

2. A cushioning apparatus according to claim 1, wherein: buffer still includes slidable locates first regulating part (8), the locking of being used for on slide shaft (2) first locking piece (9) of first regulating part (8), first regulating part (8) can the complex inlay locate in the opening of casing (1), elastic component (6) are around locating slide shaft (2) week side and its one end connect in on first regulating part (8), the other end connect in buffer portion (3) are close to the one end of blocking portion (4).

3. A cushioning apparatus according to claim 1, wherein: one end of the elastic piece (6) is connected with one end, far away from the blocking part (4), of the buffering part (3), and the other end of the elastic piece is connected with one end, far away from the opening, of the shell (1).

4. A cushioning apparatus according to claim 3, wherein: the buffering device further comprises a second adjusting piece (10) which is slidably inserted into one end part of the buffering part (3) far away from the blocking part (4), and a second locking piece (11) used for locking the second adjusting piece (10), wherein one end of the elastic piece (6) is connected onto the second adjusting piece (10).

5. A damper according to claim 3 or 4, wherein: the buffer device further comprises a first connecting piece (12) arranged at one end, far away from the opening, of the shell (1), and the other end of the elastic piece (6) is connected to the first connecting piece (12).

6. A cushioning apparatus according to claim 1, wherein: the elastic member (6) includes a first elastic member (61) and a second elastic member (62) respectively connected to both ends of the buffer portion (3) in the sliding direction.

7. A damper according to claim 6, wherein: buffer still includes slidable locates first regulating part (8), the locking on slide (2) first locking piece (9) of first regulating part (8), first regulating part (8) can the complex inlay locate in the opening of casing (1), first elastic component (61) are around locating slide (2) week side and its one end connect in on first regulating part (8), the other end connect in buffer portion (3) are close to the one end of blocking portion (4).

8. A damper according to claim 6, wherein: the buffer device further comprises a first connecting piece (12) arranged at one end, far away from the opening, of the shell (1), a second adjusting piece (10) slidably inserted into the buffer part (3) and far away from one end of the blocking part (4), and a second locking piece (11) used for locking the second adjusting piece (10), wherein one end of the second elastic piece (62) is connected onto the first connecting piece (12), and the other end of the second elastic piece is connected onto the second adjusting piece (10).

9. A cushioning apparatus according to claim 1, wherein: buffer still includes mobilizable locating casing (1) is kept away from the first connecting piece (12), the mobilizable locating of opening one end week side of first connecting piece (12) be used for the locking a plurality of third retaining members (13) of first connecting piece (12), a plurality of third retaining members (13) set up and with along horizontal direction and vertical direction respectively the axial looks of first connecting piece (12) is perpendicular.

10. A damping device according to claim 1 or 9, characterized in that: the buffer device further comprises a second connecting piece (14) arranged at one end, far away from the buffer part (3), of the sliding shaft (2), and the second connecting piece (14) is fixedly connected with the sliding shaft (2) or integrally arranged with the sliding shaft.