CN220739063U - Expansion and contraction mechanism of coiling machine coiling block - Google Patents
Expansion and contraction mechanism of coiling machine coiling block Download PDFInfo
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- CN220739063U CN220739063U CN202322360089.XU CN202322360089U CN220739063U CN 220739063 U CN220739063 U CN 220739063U CN 202322360089 U CN202322360089 U CN 202322360089U CN 220739063 U CN220739063 U CN 220739063U
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- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 230000008602 contraction Effects 0.000 title claims abstract description 21
- 238000004804 winding Methods 0.000 claims abstract description 24
- 230000006835 compression Effects 0.000 claims abstract description 21
- 238000007906 compression Methods 0.000 claims abstract description 21
- 239000010687 lubricating oil Substances 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 239000003921 oil Substances 0.000 description 10
- 229910000831 Steel Inorganic materials 0.000 description 8
- 239000010959 steel Substances 0.000 description 8
- 238000009434 installation Methods 0.000 description 5
- 230000009471 action Effects 0.000 description 4
- 210000001624 hip Anatomy 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 4
- 238000005461 lubrication Methods 0.000 description 4
- 238000005097 cold rolling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005098 hot rolling Methods 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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Abstract
The utility model discloses an expanding and shrinking mechanism of a coiling machine coiling block, which comprises a hollow shaft, a pull rod, a plunger, a sector plate, a bearing seat, a hydraulic cylinder and a push-pull device, wherein the bearing seat, the hydraulic cylinder and the push-pull device are sequentially arranged from left to right; the push-pull device comprises a movable flange, a fixed flange, a pin key unit and a plurality of compression units; the movable flange and the fixed flange are sleeved on the hollow shaft, and are transversely connected through a plurality of compression units uniformly distributed along the circumferential direction, and the pin key units are connected with the movable flange, the hollow shaft and the pull rod. According to the utility model, the expansion and contraction of the winding drum are realized through the combination of the hydraulic cylinder and the push-pull device, so that the hydraulic cylinder does not need to rotate, a rotary joint is not required to be configured, and the production cost is reduced.
Description
Technical Field
The utility model relates to the technical field of coiling of hot-rolled strips and cold-rolled strips, in particular to an expanding and shrinking mechanism of a coiling block of a coiling machine.
Background
The coiling machine reel is a key component on a hot rolled strip steel production line, and has the function of coiling the hot rolled or cold rolled strip steel for transportation and storage, and the stable tension between the coiling machine reel and the pinch roll is established in the coiling process so as to ensure the coiling quality of the strip steel. The quality of the coiled steel of the coiling drum directly influences the appearance coiled quality of the outgoing steel coil.
The traditional coiling machine winding drum is expanded and contracted under the action of a hydraulic cylinder, so that the purposes of coiling steel and uncoiling are achieved, and the specific structure of an expanding and contracting mechanism is as shown in fig. 1: the piston rod of the hydraulic cylinder is connected with the pull rod through a coupler, and the piston rod of the hydraulic cylinder stretches back and forth to drive the pull rod to move back and forth to complete the expansion and contraction of the winding drum. The disadvantages of this structure are: 1. the hydraulic cylinder is used as a power source for expanding and shrinking the winding drum and is arranged and fixed on the winding drum and rotates at a high speed along with the winding drum, so that a rotary joint is required to be arranged, and the original winding drum rotary joint mainly depends on import and is high in price; 2. the effort of pneumatic cylinder is great during the expanding, easily causes sealed damage and makes hydraulic oil leak, pollutes the environment and the maintenance difficulty.
Disclosure of Invention
The utility model aims to solve the problem of providing a swelling and shrinking mechanism of a coiling block of a coiling machine, which realizes swelling and shrinking of the coiling block through the combination of a hydraulic cylinder and a push-pull device, so that the hydraulic cylinder does not need to rotate, a rotary joint is not required to be configured, and the production cost is reduced. Meanwhile, the hydraulic cylinder is only stressed unidirectionally, is not easy to damage, and cannot pollute the environment due to leakage of hydraulic oil. In addition, the push-pull mechanism is maintenance-free, and the production and installation cost is reduced.
The utility model relates to an expanding and shrinking mechanism of a coiling machine coiling block, which comprises a hollow shaft, a pull rod, a plunger, a sector plate, a bearing seat, a hydraulic cylinder and a push-pull device, wherein the bearing seat, the hydraulic cylinder and the push-pull device are sequentially arranged from left to right; the push-pull device comprises a movable flange, a fixed flange, a pin key unit and a plurality of compression units; the movable flange and the fixed flange are sleeved on the hollow shaft, and are transversely connected through a plurality of compression units uniformly distributed along the circumferential direction, and the pin key units are connected with the movable flange, the hollow shaft and the pull rod.
Further, the hydraulic cylinder comprises a cylinder body and a piston rod, the cylinder body is fixedly connected with the bearing seat through a fixing rod, the piston rod is hollow, and the hollow shaft penetrates through the inside of the piston rod.
Further, the pin key unit comprises a pin key, the pin key is in a waist shape with the same size, waist-shaped holes are formed in the movable flange, the hollow shaft and the pull rod, the centers of the three waist-shaped holes are consistent, the widths of the three waist-shaped holes are equal, the waist-shaped holes in the movable flange and the pull rod are the same as the pin key in size, and the length of the waist-shaped hole in the hollow shaft is larger than that of the pin key; the middle of the pin key is tightly matched with the waist-shaped hole of the pull rod, and the upper end and the lower end of the pin key pass through the waist-shaped hole of the hollow shaft and are tightly matched with the waist-shaped hole of the movable flange.
Further, the pin key unit comprises a pin key and an upper wedge-shaped sliding block, the pin key is in a middle big upper section and a middle small lower section, inclined planes are processed on one side of the upper section and the lower section opposite to the movable flange, the hollow shaft and the pull rod are respectively provided with a kidney-shaped hole, the centers of the three kidney-shaped holes are consistent and the widths are equal, the kidney-shaped hole of the pull rod is the same as the middle size of the pin key, the length size of the kidney-shaped hole of the movable flange is larger than the length size of the kidney-shaped hole of the pull rod, and the length size of the kidney-shaped hole of the hollow shaft is larger than the length size of the kidney-shaped hole of the movable flange; the middle of the pin key is tightly matched with the waist-shaped hole of the pull rod, and the upper end and the lower end of the pin key pass through the waist-shaped hole of the movable flange from the waist-shaped hole of the hollow shaft; the upper wedge-shaped sliding blocks and the lower wedge-shaped sliding blocks are arranged in the kidney-shaped holes of the movable flange, and the left end and the right end of the upper wedge-shaped sliding blocks and the right end of the lower wedge-shaped sliding blocks are respectively pressed with the kidney-shaped holes of the movable flange and the inclined surfaces of the pin keys.
Further, each compression unit comprises a left spring seat, a compression spring, a right spring seat, a bolt and a nut; the left spring seat and the right spring seat are oppositely arranged left and right, the compression spring is sleeved outside the left spring seat and the right spring seat and is compressed by the inner end surfaces of the left spring seat and the right spring seat, the outer end surfaces of the left spring seat and the right spring seat are respectively contacted with the inner end surfaces of the flanges of the movable flange and the fixed flange, and the bolts pass through the movable flange, the left spring seat, the right spring seat and the fixed flange and are locked through nuts.
Further, both the movable flange and the fixed flange are uniformly distributed with a plurality of U-shaped mounting holes along the circumferential direction, and two ends of the bolt are placed in the U-shaped mounting holes.
Further, the push-pull device further comprises a sliding shaft sleeve, and a left sliding shaft sleeve and a right sliding shaft sleeve are arranged between the moving flange and the hollow shaft in the radial direction.
Further, a lubrication oil way is arranged on the movable flange and is communicated with a lubrication oil hole on the sliding shaft sleeve.
The working principle of the expansion and contraction mechanism of the utility model is as follows: 1. the pipeline of the hydraulic cylinder is used for supplying oil and pressurizing, the piston rod moves rightwards to touch a moving flange on the spring mechanism, then the moving flange is pushed to move rightwards together until the stroke reaches the proper position, and the moving flange drives the pull rod to move rightwards through the key pin, so that the plunger moves inwards, the sector plate is driven to move inwards, and the winding drum is contracted; 2. after oil return and pressure relief of a pipeline of the hydraulic cylinder are carried out, under the action of the elasticity of the compression spring, the movable flange pushes the piston rod to move leftwards for resetting, and the movable flange drives the pull rod to move leftwards through the pin key, so that the plunger moves outwards, the sector plate is pushed to move outwards, and the winding drum is inflated.
The utility model realizes the expansion and contraction of the coiling block of the coiling machine through the combination of the hydraulic cylinder and the push-pull mechanism, and has the advantages that: 1. the hydraulic cylinder does not need to rotate, so that a rotary joint is not required to be configured, and the production cost is reduced; 2. the hydraulic cylinder is only stressed in one direction, is not easy to damage, and cannot pollute the environment due to leakage of hydraulic oil; 3. the push-pull mechanism is maintenance-free, and the production and installation cost is reduced. The expansion and contraction mechanism can be widely applied to the hot rolling coiling machine winding drum and the cold rolling coiling machine winding drum, thereby achieving the purposes of coiling steel and coil unloading.
Drawings
FIG. 1 is an expanding and contracting mechanism of a prior art coiler drum;
FIG. 2 is a schematic diagram of a combination of a hydraulic cylinder and a push-pull device of the present utility model;
FIG. 3 is a second schematic illustration of the combination of a hydraulic cylinder and push-pull device of the present utility model;
FIG. 4 is a front view I of the expansion and contraction mechanism of the present utility model;
FIG. 5 is a second front view of the expansion and contraction mechanism of the present utility model;
fig. 6 is a schematic installation diagram of a hydraulic cylinder.
Detailed Description
Example 1
As can be seen from fig. 2, 3, 4, 5 and 6, the expanding and contracting mechanism of the coiling machine reel of the utility model comprises a hollow shaft 4, a pull rod 5, a plunger 6, a sector plate 7, a bearing seat 34, a hydraulic cylinder and a push-pull device which are sequentially arranged from left to right, wherein the bearing seat 34 is sleeved on the hollow shaft 4, the hydraulic cylinder is connected with the bearing seat 34 through a fixed rod 33, and the hollow shaft 4 passes through the interior of the hydraulic cylinder; the push-pull device comprises a movable flange 11, a fixed flange 12, a pin key unit and a plurality of compression units; the movable flange 11 and the fixed flange 12 are sleeved on the hollow shaft 4, and are transversely connected through a plurality of compression units uniformly distributed along the circumferential direction, and the pin key units are connected with the movable flange 11, the hollow shaft 4 and the pull rod 5.
The utility model relates to an expanding and shrinking mechanism of a coiling machine coiling block, a hollow shaft 4 is sleeved outside a pull rod 5, a plunger 6 is arranged between the left side of the hollow shaft and the pull rod 5, the plunger 6 is matched with the pull rod 5 through an inner inclined plane, and is matched with a sector plate 7 through an outer plane; when the hydraulic cylinder is pressurized, the pushing device is pushed to move rightwards, the pull rod 5 is driven to move rightwards by the pushing device, the plunger 6 is enabled to move inwards, the sector plate 7 is pushed to move inwards, and the winding drum is contracted; when the hydraulic cylinder is depressurized, the pushing device is pushed to move leftwards, the pulling rod 5 is pushed to move leftwards by the pushing device, the plunger 6 is enabled to move outwards, the sector plate 7 is pushed to move outwards, and the winding drum is inflated.
Example 2
As can be seen from fig. 2, 3, 4, 5 and 6, the expanding and contracting mechanism of the present utility model: the hydraulic cylinder comprises a cylinder body 31 and a piston rod 32, the cylinder body 31 is fixedly connected with a bearing seat 34 through a fixed rod 33, the piston rod 32 is hollow, and the hollow shaft 4 penetrates through the interior of the piston rod 32.
When the pipeline of the hydraulic cylinder is used for supplying oil and pressurizing, the cylinder body 31 is fixedly connected with the bearing seat 34 and is not moved, and at the moment, the piston rod 32 moves rightwards to contact with the pushing device and then pushes the pushing device to move rightwards; when the return oil of the pipeline of the hydraulic cylinder is released, the position pushing device pushes the piston rod 32 to move leftwards for resetting.
Example 3
As can be seen from fig. 2, 3, 4, 5 and 6, the expanding and contracting mechanism of the present utility model: there are two different structural ways of the pin key unit:
structural mode one: the pin key unit comprises a pin key 13, the pin key 13 is in a waist shape with the same size, waist-shaped holes are formed in the movable flange 11, the hollow shaft 4 and the pull rod 5, the centers of the three waist-shaped holes are identical, the widths of the three waist-shaped holes are equal, the waist-shaped holes in the movable flange 11 and the pull rod 5 are the same as the size of the pin key 13, and the length size of the waist-shaped hole of the hollow shaft 4 is larger than the length size of the pin key 13; the middle of the pin key 13 is tightly matched with the waist-shaped hole of the pull rod 5, and the upper and lower ends of the pin key pass through the waist-shaped hole of the hollow shaft 4 and are tightly matched with the waist-shaped hole of the movable flange 11.
When the movable flange 11 moves left and right, the movable flange drives the pull rod 5 to move left and right through the pin key 13, so that the reduction and the expansion of the winding drum are realized; at this time, the hollow shaft 4 does not move left and right.
And the structural mode II is as follows: the pin key unit comprises a pin key 13 and an upper wedge-shaped sliding block 14, wherein the pin key 13 is in a middle big upper section and a middle small lower section, inclined planes are processed on one side of the upper section and the lower section opposite to the movable flange 11, the hollow shaft 4 and the pull rod 5 are respectively provided with a kidney-shaped hole, the centers of the three kidney-shaped holes are consistent, the widths are equal, the kidney-shaped holes of the pull rod 5 are the same as the middle size of the pin key 13, the length size of the kidney-shaped hole of the movable flange 11 is larger than the length size of the kidney-shaped hole of the pull rod 5, and the length size of the kidney-shaped hole of the hollow shaft 4 is larger than the length size of the kidney-shaped hole of the movable flange 11; the middle of the pin key 13 is tightly matched with the waist-shaped hole of the pull rod 5, and the upper end and the lower end of the pin key penetrate through the waist-shaped hole of the hollow shaft 4 and are positioned in the waist-shaped hole of the movable flange 11; the upper and lower wedge-shaped sliding blocks 14 are arranged in the kidney-shaped holes of the movable flange 11, and the left and right ends of the upper and lower wedge-shaped sliding blocks 14 are respectively pressed with the kidney-shaped holes of the movable flange 11 and the inclined surfaces of the pin keys 13.
In the first structural mode: because the pin key 13 is in a waist shape with the same size, the processing precision requirement on the pin key 13 is very high, if the gap is too small, the installation of the pin key 13 and the movable flange 11 is affected, if the gap is too large, the pin key 13 and the movable flange 11 generate a gap, and the movable flange 11 drives the pull rod 5 to move left and right and collide with the pin key 13; moreover, as the working time of the winding drum is prolonged, the pin key 13, the pull rod 5 and the movable flange 11 are worn to enlarge the gap, and the pin key 13 can fall off, so that the winding drum can not be expanded and contracted, and the winding drum is easily damaged, and the first structural mode is improved into the second structural mode.
In the second structural mode: the middle of the pin key 13 is large in an upper section and a lower section, the small waists are convenient to install with the movable flange 11, and meanwhile, the pin key 13 is always kept in contact with the movable flange 11 through adjustment of the upper wedge-shaped sliding block 14 and the lower wedge-shaped sliding block 14, so that the movable flange 11 reliably drives the pull rod 5 to move left and right; even if the gap between the pin key 13 and the pull rod 5 and the movable flange 11 is increased due to abrasion along with the extension of the working time of the winding drum, the pressing contact between the pin key 13 and the movable flange 11 can be ensured through the upper wedge-shaped sliding block 14 and the lower wedge-shaped sliding block 14, so that the realization of the expanding and contracting function is ensured.
Example 4
As can be seen from fig. 2, 3, 4, 5 and 6, the expanding and contracting mechanism of the present utility model: each compression unit comprises a left spring seat 15, a compression spring 16, a right spring seat 17, a bolt 18 and a nut 19; the left spring seat 15 and the right spring seat 17 are oppositely arranged left and right, the compression spring 16 is sleeved outside the left spring seat 15 and the right spring seat 17 and is pressed by the inner end surfaces of the left spring seat 15 and the right spring seat 17, the outer end surfaces of the left spring seat 15 and the right spring seat 17 are respectively contacted with the flange inner end surfaces of the movable flange 11 and the fixed flange 12, and the bolts 18 penetrate through the movable flange 11, the left spring seat 15, the right spring seat 17 and the fixed flange 12 and are locked through nuts 19.
When the hydraulic cylinder pushes the moving flange 11 to move rightward, the compression spring 16 is compressed because the fixed flange 12 does not move; when the hydraulic cylinder is depressurized, the movable flange 11 is pushed to move leftwards under the action of the elastic force of the compression spring 16, and the movable flange 11 drives the pull rod 5 to move leftwards through the pin key 13.
Example 5
As can be seen from fig. 2, 3, 4, 5 and 6, the expanding and contracting mechanism of the present utility model: a plurality of U-shaped mounting holes are uniformly distributed in the circumferential direction on the movable flange 11 and the fixed flange 12, and two ends of the bolts 18 are placed in the U-shaped mounting holes.
The bolts 18 are arranged in the U-shaped mounting holes, so that the mounting and the replacement are convenient.
Example 6
As can be seen from fig. 2, 3, 4, 5 and 6, the expanding and contracting mechanism of the present utility model: the push-pull device also comprises a sliding shaft sleeve 10, and a left sliding shaft sleeve 10 and a right sliding shaft sleeve 10 are arranged between the moving flange 11 and the hollow shaft 4 in the radial direction.
The movable flange 11 can slide left and right on the hollow shaft 4 through the sliding shaft sleeve 10, so that the pin key 13 drives the pull rod 5 to move left and right, and the expansion and the contraction of the winding drum are realized.
Example 7
As can be seen from fig. 2, 3, 4, 5 and 6, the expanding and contracting mechanism of the present utility model: the movable flange 11 is provided with a lubrication oil path which is communicated with a lubrication oil hole on the sliding shaft sleeve 10.
The moving flange 11 and the sliding sleeve 10 are lubricated to prevent wear between the sliding sleeve 10 and the hollow shaft 4.
The working principle of the expansion and contraction mechanism of the utility model is as follows: 1. the pipeline of the hydraulic cylinder is used for supplying oil and pressurizing, the piston rod 32 moves rightwards to touch the moving flange 11 on the spring mechanism, then the moving flange 11 is pushed to move rightwards together until the stroke reaches the proper position, the moving flange 11 drives the pull rod 5 to move rightwards through the key pin 13, so that the plunger 6 moves inwards, the sector plate 7 is driven to move inwards, and the winding drum is contracted; 2. after oil return and pressure relief of the pipeline of the hydraulic cylinder are carried out, under the action of the elasticity of the compression spring 16, the movable flange 11 pushes the piston rod 32 to move leftwards for resetting, the movable flange 11 drives the pull rod 5 to move leftwards through the pin key 13, the plunger 6 is enabled to move outwards, the sector plate 7 is pushed to move outwards, and the winding drum is inflated.
The utility model realizes the expansion and contraction of the coiling block of the coiling machine through the combination of the hydraulic cylinder and the push-pull mechanism, and has the advantages that: 1. the hydraulic cylinder does not need to rotate, so that a rotary joint is not required to be configured, and the production cost is reduced; 2. the hydraulic cylinder is only stressed in one direction, is not easy to damage, and cannot pollute the environment due to leakage of hydraulic oil; 3. the push-pull mechanism is maintenance-free, and the production and installation cost is reduced. The expansion and contraction mechanism can be widely applied to the hot rolling coiling machine winding drum and the cold rolling coiling machine winding drum, thereby achieving the purposes of coiling steel and coil unloading.
Claims (8)
1. The expansion and contraction mechanism of the coiling machine winding drum comprises a hollow shaft (4), a pull rod (5), a plunger (6) and a sector plate (7), and is characterized in that: the hydraulic device further comprises a bearing seat (34), a hydraulic cylinder and a push-pull device which are sequentially arranged from left to right, wherein the bearing seat (34) is sleeved on the hollow shaft (4), the hydraulic cylinder is connected with the bearing seat (34) through a fixing rod (33), and the hollow shaft (4) penetrates through the inside of the hydraulic cylinder; the push-pull device comprises a movable flange (11), a fixed flange (12), a pin key unit and a plurality of compression units; the movable flange (11) and the fixed flange (12) are sleeved on the hollow shaft (4), and are transversely connected through a plurality of compression units uniformly distributed along the circumferential direction, and the pin key units are connected with the movable flange (11), the hollow shaft (4) and the pull rod (5).
2. The expansion and contraction mechanism according to claim 1, wherein: the hydraulic cylinder comprises a cylinder body (31) and a piston rod (32), the cylinder body (31) is fixedly connected with a bearing seat (34) through a fixing rod (33), the piston rod (32) is hollow, and the hollow shaft (4) penetrates through the inside of the piston rod (32).
3. The expansion and contraction mechanism according to claim 1, wherein: the pin key unit comprises a pin key (13), the pin key (13) is in a waist shape with the same size, waist-shaped holes are formed in the movable flange (11), the hollow shaft (4) and the pull rod (5), the centers of the three waist-shaped holes are consistent and the widths are equal, the waist-shaped holes in the movable flange (11) and the pull rod (5) are the same as the pin key (13), and the length of the waist-shaped hole of the hollow shaft (4) is larger than that of the pin key (13); the middle of the pin key (13) is tightly matched with the waist-shaped hole of the pull rod (5), and the upper end and the lower end of the pin key pass through the waist-shaped hole of the hollow shaft (4) and are tightly matched with the waist-shaped hole of the movable flange (11).
4. The expansion and contraction mechanism according to claim 1, wherein: the pin key unit comprises a pin key (13) and an upper wedge-shaped sliding block (14), the pin key (13) is in a middle big upper section and a middle small lower section, inclined planes are processed on one side of the upper section and the lower section relative to the movable flange (11), kidney-shaped holes are formed in the movable flange (11), the hollow shaft (4) and the pull rod (5), the centers of the three kidney-shaped holes are consistent, the widths of the three kidney-shaped holes are equal, the kidney-shaped holes of the pull rod (5) are the same as the middle size of the pin key (13), the length size of the kidney-shaped hole of the movable flange (11) is larger than the length size of the kidney-shaped hole of the pull rod (5), and the length size of the kidney-shaped hole of the hollow shaft (4) is larger than the length size of the kidney-shaped hole of the movable flange (11); the middle of the pin key (13) is tightly matched with the waist-shaped hole of the pull rod (5), and the upper end and the lower end of the pin key penetrate through the waist-shaped hole of the movable flange (11) from the waist-shaped hole of the hollow shaft (4); the upper wedge-shaped sliding block (14) and the lower wedge-shaped sliding block (14) are arranged in the kidney-shaped hole of the movable flange (11), and the left end and the right end of the upper wedge-shaped sliding block and the right end of the lower wedge-shaped sliding block (14) are respectively pressed with the kidney-shaped hole of the movable flange (11) and the inclined surfaces of the pin key (13).
5. The expansion and contraction mechanism according to claim 1, wherein: each compression unit comprises a left spring seat (15), a compression spring (16), a right spring seat (17), a bolt (18) and a nut (19); the left spring seat (15) and the right spring seat (17) are oppositely arranged left and right, the compression spring (16) is sleeved outside the left spring seat (15) and the right spring seat (17) and is tightly pressed by the inner end surfaces of the left spring seat (15) and the right spring seat (17), the outer end surfaces of the left spring seat (15) and the right spring seat (17) are respectively contacted with the flange inner end surfaces of the moving flange (11) and the fixed flange (12), and the bolts (18) penetrate through the moving flange (11), the left spring seat (15), the right spring seat (17) and the fixed flange (12) and are locked through nuts (19).
6. The expansion and contraction mechanism according to claim 5, wherein: both the movable flange (11) and the fixed flange (12) are uniformly distributed with a plurality of U-shaped mounting holes along the circumferential direction, and two ends of the bolt (18) are placed in the U-shaped mounting holes.
7. The expansion and contraction mechanism according to claim 1, wherein: the push-pull device further comprises a sliding shaft sleeve (10), and a left sliding shaft sleeve (10) and a right sliding shaft sleeve (10) are arranged between the movable flange (11) and the hollow shaft (4) in the radial direction.
8. The expansion and contraction mechanism according to claim 7, wherein: the movable flange (11) is provided with a lubricating oil way which is communicated with a lubricating oil hole on the sliding shaft sleeve (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322360089.XU CN220739063U (en) | 2023-08-31 | 2023-08-31 | Expansion and contraction mechanism of coiling machine coiling block |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322360089.XU CN220739063U (en) | 2023-08-31 | 2023-08-31 | Expansion and contraction mechanism of coiling machine coiling block |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220739063U true CN220739063U (en) | 2024-04-09 |
Family
ID=90553850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322360089.XU Active CN220739063U (en) | 2023-08-31 | 2023-08-31 | Expansion and contraction mechanism of coiling machine coiling block |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220739063U (en) |
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2023
- 2023-08-31 CN CN202322360089.XU patent/CN220739063U/en active Active
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