CN212509322U - Hydraulic buffer connecting rod device - Google Patents
Hydraulic buffer connecting rod device Download PDFInfo
- Publication number
- CN212509322U CN212509322U CN202020883089.1U CN202020883089U CN212509322U CN 212509322 U CN212509322 U CN 212509322U CN 202020883089 U CN202020883089 U CN 202020883089U CN 212509322 U CN212509322 U CN 212509322U
- Authority
- CN
- China
- Prior art keywords
- piston
- oil
- oil cylinder
- cavity
- connecting rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model discloses hydraulic buffer connecting rod device belongs to the mechanical connection pole field, and the purpose is the impact force of buffering the tractor and when being accelerated and the braking by the tractor, increase of service life. Comprises an oil cylinder, a piston rod and a connecting rod; the piston is arranged in the oil cylinder; the piston is in sliding fit with the side wall of the oil cylinder along the axial direction of the oil cylinder; the oil containing cavity is divided into a cavity A and a cavity B by the piston; the piston is provided with a buffer oil hole for communicating the cavity A and the cavity B; one end of the connecting rod is fixedly connected with the right side wall of the oil cylinder; one end of the piston rod penetrates through the mounting hole in the left side wall to be fixedly connected with the piston, and an oil seal structure is arranged between the outer wall of the piston rod and the hole wall of the mounting hole. The utility model discloses, utilize the buffer oilhole on the piston to inject the velocity of motion of piston, reach the purpose of buffering, reduce the tractor and by the tractor with higher speed with the impact force when braking, prolong connecting rod structure's life, and this structure has the movement clearance, move steadily, simple structure and connect reliably.
Description
Technical Field
The utility model belongs to the mechanical connecting rod field specifically is hydraulic cushion link means.
Background
In the transportation of a locomotive under a coal mine, a three-ring chain and a hard connecting rod are generally used for connecting two adjacent vehicles. When large objects are transported and limited by the size of the objects, a hard connecting rod is usually adopted between the towing vehicle and the towed vehicle to keep the distance between the vehicles so as to prevent the vehicles from being collided. Because of the heavy weight of large-scale objects, the impact force generated by inertia is large when a vehicle brakes, and the large impact force is easy to cause great damage to the hard connecting rod and the vehicle connecting part, so that the connecting rod can be bent and deformed or even broken, and the vehicle connecting part is deformed and damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a hydraulic cushion link means to cushion the tractor and by the tractor acceleration and the impact force when braking, increase of service life.
The utility model adopts the technical proposal that: the hydraulic buffer connecting rod device comprises an oil cylinder, a piston rod and a connecting rod; the oil cylinder comprises a side wall, a left end wall positioned at one end and a right end wall positioned at the other end; the oil cylinder is surrounded by a side wall, a left end wall and a right end wall to form an oil containing cavity, and an oil filling hole for filling oil into the oil containing cavity is arranged on the oil cylinder;
the piston is arranged in the oil cylinder; the piston is in sliding fit with the side wall of the oil cylinder along the axial direction of the oil cylinder; the oil containing cavity is divided into a cavity A and a cavity B by a piston; the piston is provided with a buffer oil hole for communicating the cavity A and the cavity B;
one end of the connecting rod is fixedly connected with the right side wall of the oil cylinder, and the other end of the connecting rod extends outwards along the axial direction of the oil cylinder;
the left side wall of the oil cylinder is provided with a mounting hole, one end of the piston rod penetrates through the mounting hole to be fixedly connected with the piston, and an oil seal structure is arranged between the outer wall of the piston rod and the hole wall of the mounting hole.
Further, a sealing structure is arranged between the periphery of the piston and the side wall of the oil cylinder.
Further, the sealing structure is a sealing ring; and a circle of sealing groove which is inwards sunken along the radial direction of the piston is arranged along the periphery of the piston, and the sealing ring is clamped in the sealing groove.
Furthermore, the inner surfaces of the left end wall and the right end wall of the oil cylinder are provided with anti-collision baffle plates.
Furthermore, the oil cylinder, the piston rod and the connecting rod are coaxial.
Furthermore, the bottom of the piston is provided with the buffer oil hole.
Furthermore, the number of the buffer oil holes is two, the center connecting line of the two buffer oil holes penetrates through the center of the piston, and the two buffer oil holes are vertically arranged.
Furthermore, the oil filler hole is arranged on the side wall of the oil cylinder.
The utility model has the advantages that: the utility model discloses a hydraulic buffer connecting rod device, through the setting of buffering oilhole, be linked together A cavity and B cavity, through piston straight reciprocating motion in the hydro-cylinder to utilize the buffering oilhole on the piston to inject the velocity of motion of piston, reach the purpose of buffering, reduce the tractor and by the tractor with higher speed with the impact force when braking, prolong connecting rod structure's life, and this structure does not have the movement clearance, the motion is steady, simple structure and connection are reliable.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a cross-sectional view A-A of FIG. 1;
fig. 3 is a partially enlarged view of bitmap 1 at B.
In the figure, an oil cylinder 1, a side wall 11, a left end wall 12, a right end wall 13, an oil filling hole 14, a cavity A15, a cavity B16, a piston 2, a buffer oil hole 21, a seal groove 22, a piston rod 3, a connecting rod 4, an oil seal structure 5, a seal ring 6 and an anti-collision baffle 7.
Detailed Description
The invention is further described below with reference to the following figures and examples:
the hydraulic buffer connecting rod device, as shown in fig. 1 and 2, comprises an oil cylinder 1, a piston 2, a piston rod 3 and a connecting rod 4; the oil cylinder 1 comprises a side wall 11, a left end wall 12 at one end and a right end wall 13 at the other end; the oil cylinder 1 is surrounded by a side wall 11, a left end wall 12 and a right end wall 13 to form an oil containing cavity, and an oil filling hole 14 for filling oil into the oil containing cavity is formed;
the piston 2 is arranged in the oil cylinder 1; and along the axial direction of the oil cylinder 1, the piston 2 is in sliding fit with the side wall 11 of the oil cylinder 1; the oil containing cavity is divided into a cavity A15 and a cavity B16 by the piston 2; a buffer oil hole 21 for communicating the cavity A15 with the cavity B16 is formed in the piston 2;
one end of the connecting rod 4 is fixedly connected with the right side wall 11 of the oil cylinder 1, and the other end of the connecting rod extends outwards along the axial direction of the oil cylinder 1;
the left side wall 11 of the oil cylinder 1 is provided with a mounting hole, one end of the piston rod 3 penetrates through the mounting hole to be fixedly connected with the piston 2, and an oil seal structure 5 is arranged between the outer wall of the piston rod 3 and the hole wall of the mounting hole.
The utility model discloses a hydraulic buffer connecting rod device, the other end of the piston rod 3 connected with the piston 2 is positioned outside the oil cylinder 1 and is used for being connected with a towed vehicle; the other end of the connecting rod 4 connected with the right side wall 11 is used for being connected with a tractor.
Through the setting of buffer oilhole 21, be linked together A cavity 15 and B cavity 16, when this hydraulic cushion connection structure is in natural state, the volume of the fluid in A cavity 15 and the B cavity 16 equals.
When the tractor brakes or parks, because the inertia effect is acted on by the tractor, can transmit the impact force for piston rod 3, piston rod 3 promotes piston 2 to the 16 rectilinear motion of B cavity, because fluid pressurized in the B cavity 16 can flow into A cavity 15 through buffer oil hole 21 on the piston 2, because buffer oil hole 21 is less, fluid in the B cavity 16 flows into the time extension of A cavity 15, force the piston slow movement, not only reach the purpose of braking, still play the cushioning effect, can alleviate the injury of strong hard braking to connecting rod structure and tractor and by the tractor, increase of service life.
Similarly, when the tractor accelerates suddenly, the tractor drives connecting rod 4 forward motion, leads to being driven piston 2 to the 15 linear motion of A cavity by tractor pulling piston rod 3, because fluid in the A cavity 15 receives the extrusion can flow in A cavity 15 through the buffer oilhole 21 on the piston 2, and piston 2 slow motion realizes the purpose of buffering when accelerating.
The hydraulic buffer connecting rod device achieves the buffer purpose by the linear reciprocating motion of the piston 2 in the oil cylinder 1 and the limitation of the motion speed of the piston 2 by the buffer oil hole 21 on the piston 2, and the hydraulic buffer connecting rod device has no motion gap, stable motion, simple structure and reliable connection.
In order to avoid the oil from passing between the a chamber 15 and the B chamber 16 through between the piston 2 and the side wall 11 and affecting the buffer oil hole 21 to define the moving speed of the piston 2, it is preferable that a seal structure is provided between the outer periphery of the piston 2 and the side wall 11 of the cylinder 1.
Preferably, as shown in fig. 3, the sealing structure is a sealing ring 6; a circle of sealing groove 22 which is inwards recessed along the radial direction of the piston 2 is arranged along the periphery of the piston, and the sealing ring 6 is clamped in the sealing groove 22. The structure has reliable sealing and simple structure.
In order to buffer the impact of the piston 2 on the left end wall 12, the left end wall 12 of the oil cylinder 1 is provided with a collision baffle 7; to cushion the impact of the piston 2 against the right end wall 13, a crash barrier 7 is provided on the inner surface of the right end wall 13.
In order to reduce the risk of shearing damage of the oil cylinder 1, the piston rod 3 and the connecting rod 4 are coaxial.
In order to make the oil smoothly circulate between the cavity a 15 and the cavity B16, when in use, the bottom of the piston 2 is provided with one buffer oil hole 21.
The number of the buffer oil holes 21 can be three, four or one, the number of the buffer oil holes 21 is two, the central line of the two buffer oil holes 21 passes through the center of the piston 2, and the two buffer oil holes 21 are vertically arranged.
The oil filling hole 14 is arranged on the side wall 11 of the oil cylinder 1.
Claims (8)
1. Hydraulic cushion link means, its characterized in that: comprises an oil cylinder (1), a piston (2), a piston rod (3) and a connecting rod (4); the oil cylinder (1) comprises a side wall (11), a left end wall (12) positioned at one end and a right end wall (13) positioned at the other end; the oil cylinder (1) is provided with an oil filling hole (14) for filling oil into the oil containing cavity;
the piston (2) is arranged in the oil cylinder (1); the piston (2) is in sliding fit with the side wall (11) of the oil cylinder (1) along the axial direction of the oil cylinder (1); the oil containing cavity is divided into a cavity A (15) and a cavity B (16) by a piston (2); a buffer oil hole (21) which is communicated with the cavity A (15) and the cavity B (16) is formed in the piston (2);
one end of the connecting rod (4) is fixedly connected with the right side wall (11) of the oil cylinder (1), and the other end of the connecting rod extends outwards along the axial direction of the oil cylinder (1);
the oil cylinder is characterized in that a mounting hole is formed in the left side wall (11) of the oil cylinder (1), one end of the piston rod (3) penetrates through the mounting hole to be fixedly connected with the piston (2), and an oil seal structure (5) is arranged between the outer wall of the piston rod (3) and the hole wall of the mounting hole.
2. The hydraulic damping linkage as recited in claim 1, wherein: a sealing structure is arranged between the periphery of the piston (2) and the side wall (11) of the oil cylinder (1).
3. The hydraulic cushion linkage as recited in claim 2, wherein: the sealing structure is a sealing ring (6); the periphery along piston (2) is provided with a week along its radial inside sunken seal groove (22), sealing washer (6) card is located in seal groove (22).
4. The hydraulic cushion link assembly of any one of claims 1-3, wherein: the inner surfaces of the left end wall (12) and the right end wall (13) of the oil cylinder (1) are provided with anti-collision baffles (7).
5. The hydraulic cushion link assembly of any one of claims 1-3, wherein: the oil cylinder (1), the piston rod (3) and the connecting rod (4) are coaxial.
6. The hydraulic damping linkage as recited in any one of claims 1-3, wherein: the bottom of the piston (2) is provided with the buffer oil hole (21).
7. The hydraulic cushion linkage as recited in claim 6, wherein: the number of the buffer oil holes (21) is two, the center connecting line of the two buffer oil holes (21) penetrates through the center of the piston (2), and the two buffer oil holes (21) are vertically arranged.
8. The hydraulic damping linkage as recited in any one of claims 1-3, wherein: the oil filling hole (14) is formed in the side wall (11) of the oil cylinder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883089.1U CN212509322U (en) | 2020-05-22 | 2020-05-22 | Hydraulic buffer connecting rod device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020883089.1U CN212509322U (en) | 2020-05-22 | 2020-05-22 | Hydraulic buffer connecting rod device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212509322U true CN212509322U (en) | 2021-02-09 |
Family
ID=74393636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020883089.1U Active CN212509322U (en) | 2020-05-22 | 2020-05-22 | Hydraulic buffer connecting rod device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212509322U (en) |
-
2020
- 2020-05-22 CN CN202020883089.1U patent/CN212509322U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108749924B (en) | Shock-absorbing anti-collision steel beam for automobile force transfer | |
| CN107685745B (en) | A kind of vehicle bumper connector | |
| CN103671348A (en) | Lifting hydraulic oil cylinder of mining dump truck | |
| CN212509322U (en) | Hydraulic buffer connecting rod device | |
| CN204900642U (en) | Two -way hydraulic absorber | |
| CN105329197A (en) | Energy absorption box of automobile front anti-collision beam | |
| CN201496340U (en) | Multi-stage hydraulic cylinder with damping device of mining dumping truck, | |
| CN208498432U (en) | A kind of automobile collision energy absorber | |
| CN2835699Y (en) | Hydro-pneumatic buffer | |
| CN214775241U (en) | Safety tractor for electric trailer | |
| CN201358978Y (en) | Buffering mechanism for piston buffer cavity type hydraulic actuating cylinder | |
| CN2681954Y (en) | Automobile collision safety cushioning device | |
| CN212131166U (en) | Friction-viscous damper capable of providing composite damping | |
| CN204942152U (en) | A kind of electric locomotive brake cylinder | |
| CN211468567U (en) | Automobile force transfer shock-absorbing anti-collision steel beam | |
| CN102963372B (en) | Drift mancar for coal mine haulage | |
| CN210337921U (en) | Rail mine car with automatic brake for coal mining | |
| CN107685746A (en) | A kind of vehicle bumper connector | |
| CN201908890U (en) | Bucket rod cylinder of excavator | |
| CN217926552U (en) | Adjustable gap buffering hydraulic cylinder | |
| CN101992739A (en) | Gas drive friction self-locking collision energy-absorbing device | |
| CN207790597U (en) | Energy absorption device and the vehicle for using the energy absorption device | |
| CN206468721U (en) | Gas brake apparatus | |
| CN209704970U (en) | Rod-pulling type hydraulic cushion oil cylinder | |
| CN211693460U (en) | Anti-collision device of transmission mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |