CN212172222U - Electric rail clamping device with multi-stage levers - Google Patents
Electric rail clamping device with multi-stage levers Download PDFInfo
- Publication number
- CN212172222U CN212172222U CN202020431041.7U CN202020431041U CN212172222U CN 212172222 U CN212172222 U CN 212172222U CN 202020431041 U CN202020431041 U CN 202020431041U CN 212172222 U CN212172222 U CN 212172222U
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- lever
- clamping device
- pin shaft
- push rod
- rail
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Abstract
The electric rail clamping device of multistage lever is characterized by that two connecting rods are symmetrically mounted on the upper portion of support frame by means of upper fixed pin shaft, and another end of said connecting rod is connected with end head of multistage lever by means of connecting pin shaft, and another end of two first-stage levers is fixed on the fork head of electric push rod by means of connecting pin shaft, and another end of two second-stage levers is respectively connected with one brake shoe by means of connecting pin shaft, and two brake shoes are fixed on the lower portion of support frame by means of lower fixed pin shaft, and the rod body of electric push rod mounted on the support frame is connected with fork head by means of. The utility model can realize the slow loading and the accurate control of the clamping force by compressing the elastic body to store energy, and simultaneously ensure the constant clamping force and avoid the abrasion of the rail tread; in addition, the multistage lever structure assembly is adopted, when the rail clamping device clamps a rail, the lever is large, high clamping force can be obtained, in the opening process of the rail clamping device, the lever ratio is gradually reduced, and a large opening gap can be obtained at a small action distance of the electric push rod.
Description
Technical Field
The utility model relates to a fixed point locking braking technology of rail transport equipment, especially an electronic rail that presss from both sides of multistage lever.
Background
Traditional electronic rail clamping device adopts motor drive in the existing market, moves the screw rod rotation and drives the braking spring holder through reduction gear speed reduction and reciprocates, and the brake arm passes through single-stage lever adduction or flare-out under the effect of spring holder, realizes rail clamping device's switching floodgate, but its in-process has following problem with: 1. when the brake is opened, the gap (the distance between the friction surface of the friction block and the rail clamping surface) is within 5mm, and when the rails are laid to be unparallel, the friction block is easy to rub with the rail clamping surface in the running process, so that the rails are damaged; 2. when the width of the track deviates, the phenomena of too small opening gap, incapability of opening, small clamping force, incapability of clamping and the like can be caused; 3. in the process of high-speed operation, the damage of the rail tread caused by the abrasion of the supporting wheel often occurs; 4. the impact is larger when the clamping is carried out in the operation process.
Disclosure of Invention
The utility model aims at providing a clamp force is invariable, can avoid the electronic rail clamping device to the multistage lever of track tread wearing and tearing.
The utility model discloses an electronic rail clamping device of multistage lever, including electric putter, the installing support, the connecting rod, the brake shoe, the clutch blocks, a serial communication port, two connecting rods of last fixed pin axle symmetry installation are passed through on support upper portion, the other end of two connecting rods all meets with the end of connecting pin axle with one-level lever and second grade lever, the other end of two one-level levers is in the lump fixed on electric putter's jaw through the connecting pin axle, the other end of two second grade levers links to each other through the connecting pin axle with a brake shoe respectively, the symmetric distribution, two brake shoes that the structure is the same are fixed in the support lower part with lower fixed pin axle, the clutch blocks sets up on the brake shoe. The rod body of the electric push rod arranged on the support is connected with the fork head through an elastic body, the elastic body can adopt any one of a disc spring, a spiral spring and a rubber body, the electric push rod consists of a driving motor, a screw rod, a gear speed reducer, a torque limiter and other components, and the push rod is controlled by the motor to extend out and retract.
The utility model discloses an electronic clamping rail ware of multistage lever's theory of operation is, electric putter is by motor drive downstream, through the effect of precompressed elastomer, connecting rod, one-level lever, second grade lever, brake shoe, makes the clutch blocks and the laminating of track clamping face, the push rod continues to move down, the push rod compresses the elastomer and transmits elasticity to the clutch blocks and on the track clamping face, when elastomer secondary compression reached the specified value, the push rod stopped working, the clutch blocks established the specified clamp force with track both sides clamping face; when the electric push rod drives the electric push rod to move upwards in a reverse mode, the elastic body is restored to a pre-compression state through the transmission of the connecting rod, the first-level lever, the second-level lever and the brake shoe, clamping force between the friction block and two side faces of the track is zero, the friction block is far away from the track along with the upward movement of the push rod and generates a large distance, and friction between a large vehicle and the track is avoided when the large vehicle runs.
The utility model discloses an electronic rail clamping device of multistage lever, through compressing the elastomer energy storage, make electric putter under certain stroke displacement, thrust keeps stable to can realize the slow loading and the accurate control of clamp force, guarantee the clamp force constancy simultaneously, avoid wearing and tearing the track tread; in addition, the multi-level lever structure assembly is adopted, the lever ratio changing function is achieved, when the rail clamping device clamps the rail, the lever ratio is large, high clamping force can be obtained, in the rail clamping device opening process, the lever ratio is gradually reduced, and a large opening gap can be obtained in the small action distance of the electric push rod.
Drawings
FIG. 1 is a schematic view of the clamping state of the multi-stage lever electric rail clamping device of the present invention;
FIG. 2 is a schematic view of the multi-stage lever electric rail clamping device of the present invention in a released state;
fig. 3 is a partial structural schematic diagram of the present invention;
1. the brake device comprises an electric push rod, 2, an elastic body, 3, a support, 4, a connecting fork head, 5, an upper fixed pin shaft, 6, a connecting rod, 7, a first-level lever, 8, a second-level lever, 9, a lower fixed pin shaft, 10, a brake shoe, 11, a friction block, 12 and a connecting pin shaft.
Detailed Description
An electric rail clamping device of a multi-level lever comprises an electric push rod 1, a support 3, connecting rods 6, brake shoes 10 and friction blocks 11 and is characterized in that the upper portion of the support 3 is symmetrically provided with the two connecting rods 6 through an upper fixed pin 5, the other ends of the two connecting rods 6 are connected with the ends of a first-level lever 7 and a second-level lever 8 through connecting pin shafts 12, the other ends of the two first-level levers 7 are fixed on a fork head 4 of the electric push rod 1 through the connecting pin shafts 12, the other ends of the two second-level levers 8 are respectively connected with one brake shoe 10 through the connecting pin shafts 12, the two brake shoes 10 which are symmetrically distributed and have the same structure are fixed on the lower portion of the support 3 through lower fixed pin shafts 9, and the friction blocks 11 are arranged on. The rod body of the electric push rod 1 arranged on the bracket 3 is connected with the fork head 4 through an elastic body 2, and the elastic body 2 can adopt any one of a disc spring, a spiral spring and a rubber body.
Claims (2)
1. The utility model provides an electronic rail clamping device of multistage lever, includes electric putter (1), support (3), connecting rod (6), brake shoe (10), clutch blocks (11), its characterized in that: the upper part of the bracket (3) is symmetrically provided with two connecting rods (6) through an upper fixed pin shaft (5), the other ends of the two connecting rods (6) are connected with the ends of a first-level lever (7) and a second-level lever (8) through connecting pin shafts (12), the other ends of the two first-level levers (7) are fixed on a fork head (4) of the electric push rod (1) through the connecting pin shafts (12), the other ends of the two second-level levers (8) are respectively connected with a brake shoe (10) through the connecting pin shafts (12), the two brake shoes (10) which are symmetrically distributed and have the same structure are fixed on the lower part of the bracket (3) through lower fixed pin shafts (9), and friction blocks (11) are arranged on the brake shoes (10); the rod body of the electric push rod (1) arranged on the bracket (3) is connected with the fork head (4) through the elastomer (2).
2. The multi-level lever electric rail clamping device as claimed in claim 1, wherein: the elastic body (2) adopts any one of a disc spring, a spiral spring and a rubber body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020431041.7U CN212172222U (en) | 2020-03-30 | 2020-03-30 | Electric rail clamping device with multi-stage levers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020431041.7U CN212172222U (en) | 2020-03-30 | 2020-03-30 | Electric rail clamping device with multi-stage levers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212172222U true CN212172222U (en) | 2020-12-18 |
Family
ID=73771310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020431041.7U Active CN212172222U (en) | 2020-03-30 | 2020-03-30 | Electric rail clamping device with multi-stage levers |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212172222U (en) |
-
2020
- 2020-03-30 CN CN202020431041.7U patent/CN212172222U/en active Active
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