CN211920654U - Hydraulic cylinder snap ring type middle cylinder hoisting tool - Google Patents
Hydraulic cylinder snap ring type middle cylinder hoisting tool Download PDFInfo
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- CN211920654U CN211920654U CN202020333116.8U CN202020333116U CN211920654U CN 211920654 U CN211920654 U CN 211920654U CN 202020333116 U CN202020333116 U CN 202020333116U CN 211920654 U CN211920654 U CN 211920654U
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Abstract
A hydraulic cylinder clamp ring type middle cylinder hoisting tool aims at having a self-locking function and being safe and convenient; the utility model comprises a left and a right fixed plates, a positioning block, a hinge rod, an adjusting rod, a pawl, a hinge pin, a hoisting plate and a middle cylinder body; the positioning block is in a semi-arc shape and is welded in the middle of the left fixing plate and the right fixing plate; one end of the adjusting rod is connected with the left fixing plate, and the other end of the adjusting rod is provided with a ratchet-shaped long groove; the outer side of the left fixed plate is welded with the positioning block, and the inner side of the left fixed plate is connected with the adjusting rod and is connected with the round hole in the hinge rod through the hinge pin; the inner side of the right fixing plate is provided with two round holes, the outer side of the right fixing plate is welded with the positioning block, the large round hole is connected with the round hole on the hinge rod through a hinge pin, and the small round hole is connected with the pawl; two ends of each hinge rod are provided with round holes, the number of the round holes is two, one upper end of each hinge rod is connected with the left fixing plate, the other upper end of each hinge rod is connected with the right fixing plate, and the lower ends of the two hinge rods are connected with the hoisting plate through hinge pins; two ends of the hoisting plate are respectively provided with a round hole, one end is hinged with the hinge rod, and the other end is a hole for hoisting.
Description
Technical Field
The utility model relates to a jar lifting device in hydraulic cylinder snap ring formula.
Background
The hydraulic support is the core equipment of the fully mechanized mining face of the coal mine, can safely and reliably support and control the whole stope face, and effectively ensures the safe and smooth operation of the mining work. The upright column is a key bearing part of the hydraulic support, bears the load of the fully mechanized mining face roof acting on the hydraulic support and transmits the load to the base. The most common upright post structure is a double-telescopic upright post, the structure of the upright post generally comprises an outer cylinder body, a middle cylinder body, a movable post, a guide sleeve, a seal and other parts, and the connection mode of the middle cylinder body and the guide sleeve of the upright post is generally divided into a threaded type and a clamping ring type. When the stand column is assembled or maintained, the stand column is generally assembled or disassembled in a vertical hoisting mode, the inner wall of the clamp ring type middle cylinder body is a finish-bored processing surface, the outer wall of the clamp ring type middle cylinder body is a chromium-plated processing surface, and the clamp ring type middle cylinder body cannot bear force in the hoisting process, so that the hoisting stress point is limited, a hoisting tool suitable for vertical operation is lacked, and the assembling difficulty in the stand column assembling process is large, the efficiency is low, and the safety is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects of the prior art and providing a hydraulic oil cylinder clamp ring type middle cylinder hoisting tool with self-locking function, safety and convenience.
The utility model discloses a left and right fixed plate, locating piece, hinge bar, regulation pole, pawl, hinge pin, hoist and mount board, well cylinder body. The positioning block is in a semi-arc shape and is welded in the middle position of the inner sides of the left fixing plate and the right fixing plate; one end of the adjusting rod is provided with two round holes and is connected with the left fixing plate, and the other end of the adjusting rod is provided with a ratchet-shaped long groove; the inner side of the left fixing plate is provided with three round holes, the outer side of the left fixing plate is welded with the positioning block, the inner side of the left fixing plate is connected with the adjusting rod through two round holes and a hinge pin, and the other round hole is connected with a round hole on the hinge rod through the hinge pin; the inner side of the right fixing plate is provided with a large round hole and a small round hole, the outer side of the right fixing plate is welded with the positioning block, the large round hole is connected with the round hole in the hinge rod through a hinge pin, and the small round hole is connected with the pawl through a pin shaft; the pawl is clamped in the ratchet-shaped long groove at one end of the adjusting rod; the pawl is matched with the ratchet in the ratchet-shaped long groove on the adjusting rod to form a ratchet mechanism with the ratchet-shaped long groove capable of being opened automatically in one direction, so that the effect of inward locking is achieved. Two positioning blocks on the outer sides of the left fixing plate and the right fixing plate are respectively clamped in the annular grooves of the clamp ring type middle cylinders, and when the left fixing plate and the right fixing plate respectively move outwards, the two positioning blocks are clamped in the clamp grooves more and more tightly.
The two hinge rods are rectangular plates with circular arcs at two ends, round holes are formed in the two ends of each hinge rod, the number of the hinge rods is two, the upper end of each hinge rod is connected with the left fixing plate, the upper end of each hinge rod is connected with the right fixing plate, and the lower ends of the two hinge rods are connected with the hoisting plate through hinge pins; and two ends of the hoisting plate are respectively provided with a round hole, one end of the hoisting plate is hinged with the hinge rod, and the other end of the hoisting plate is provided with a hole for hoisting.
The left fixing plate, the right fixing plate, the positioning block, the hinge rod, the adjusting rod, the pawl and the hoisting plate are connected to form a plane connecting rod mechanism.
The device is mainly used for hoisting of the clamp ring type middle cylinder, the using method of the device is that after all parts are connected, a plane connecting rod mechanism is formed, after a positioning block is clamped into an annular groove of the clamp ring type middle cylinder, a hoisting plate is hooked by a hoisting hook, under the action of the gravity of the middle cylinder, the hoisting plate drives the tail parts of two hinged rods to move upwards, an adjusting rod moves leftwards, force like external expansion is formed, meanwhile, the adjusting rod does not retract any more due to the limitation of a pawl and an adjusting rod ratchet mechanism, and therefore automatic locking in the hoisting process is guaranteed. After the hoisting is finished, the position of the pawl is manually adjusted, the pawl is separated from the ratchet structure, the adjusting rod can move leftwards, the positions of the two fixed plates become small, and at the moment, the hoisting tool is taken out of the middle cylinder.
The hoisting tool is simple in structure and convenient to use, can realize vertical hoisting of the clamping ring type middle cylinder of the hydraulic oil cylinder, and has a self-locking function in the hoisting process, so that the hoisting safety and reliability are ensured, and the assembly efficiency of the middle cylinder is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a positioning block and a left fixing plate;
FIG. 3 is a schematic view of a hinge rod configuration;
FIG. 4 is a schematic diagram of a hoisting plate structure;
FIG. 5 is a schematic view of a hinge rod configuration;
FIG. 6 is a schematic view of an adjusting lever structure;
FIG. 7 is a schematic view of the pawl construction;
fig. 8 is a schematic view of a hinge pin.
In the figure: 1. the clamp ring type middle cylinder comprises a clamp ring type middle cylinder, 2. a positioning block, 3. a left fixing plate, 301 fixing holes, 302. a hinge hole I, 4. a hinge pin, 401. a hinge pin shaft, 402 split pins, 5. hinge rods, 6. a right fixing plate, 601. a pawl hole, 602. a hinge hole II, 7 adjusting rods, 701 hinge holes III, 702 long grooves, 8. a hoisting plate, 801. a hinge hole IV, 802. hoisting holes and 9 pawls.
Detailed Description
The two positioning blocks 2 are respectively welded on the outer sides of the left fixing plate 3 and the right fixing plate 6. The hinge hole I302 of the left fixing plate 3 is connected with the round hole of the adjusting rod 5 through a hinge pin 4, the hinge hole II 602 of the right fixing plate 6 is connected with the round hole of the other adjusting rod 5 through a hinge pin 4, and the tail parts of the two adjusting rods 5 are connected with the hinge hole IV 801 of the hoisting plate 8 through a hinge pin 4. The pawl 9 is hinged with a pawl hole 601 on the right fixing plate 6 through a pin shaft. The hinge hole III 701 of the adjusting rod 7 is fixedly connected with the fixing hole 301 of the left fixing plate 3 through two groups of hinge pins 4, the long groove 702 is a ratchet-shaped long groove, and is arranged at a position matched with the pawl 9 during use, and inward limiting is realized through the pawl 9. The hinge pin 4 includes a hinge pin shaft 401 and a cotter pin 402.
After the positioning blocks 2 on two sides of the hoisting tool are respectively clamped into the annular grooves of the clamp ring type middle cylinder 1, the lifting hooks of the crown blocks penetrate into the hoisting holes 802 of the hoisting plate 8 and are lifted upwards to carry out hoisting, and the hoisting plate 8 moves upwards at the moment, so that the left fixing plate 3 and the right fixing plate 6 are driven by the two hinge rods 5 to respectively move outwards, and the clamping of the positioning blocks 2 in the clamp grooves is realized. In order to prevent the clamping force of the tool from losing efficacy due to vibration in the hoisting process, when the hoisting rod 8 possibly moves downwards due to vibration, the ratchet-shaped long groove 702 of the adjusting rod 7 is limited by the pawl 9, and the adjusting rod 7 can only move leftwards to enlarge the distance between the left fixing plate 3 and the right fixing plate 6, so that the locking function during vibration is realized. When the hoisting is finished, the pawl 9 can be lifted up and taken out of the ratchet-shaped long groove 702, and the displacement limitation on the adjusting rod 7 is cancelled, so that the hoisting tool can be conveniently taken out of the middle cylinder.
Claims (5)
1. A hydraulic cylinder clamp ring type middle cylinder hoisting tool is characterized by comprising a left fixing plate, a right fixing plate, a positioning block, a hinge rod, an adjusting rod, a pawl, a hinge pin, a hoisting plate and a middle cylinder body; the positioning block is in a semi-arc shape and is welded in the middle position of the inner sides of the left fixing plate and the right fixing plate; one end of the adjusting rod is provided with two round holes and is connected with the left fixing plate, and the other end of the adjusting rod is provided with a ratchet-shaped long groove; the inner side of the left fixing plate is provided with three round holes, the outer side of the left fixing plate is welded with the positioning block, the inner side of the left fixing plate is connected with the adjusting rod through two round holes and a hinge pin, and the other round hole is connected with a round hole on the hinge rod through the hinge pin; the inner side of the right fixing plate is provided with a large round hole and a small round hole, the outer side of the right fixing plate is welded with the positioning block, the large round hole is connected with the round hole in the hinge rod through a hinge pin, and the small round hole is connected with the pawl through a pin shaft; the pawl is clamped in the ratchet-shaped long groove at one end of the adjusting rod; the two hinge rods are rectangular plates with circular arcs at two ends, round holes are formed in the two ends of each hinge rod, the number of the hinge rods is two, the upper end of each hinge rod is connected with the left fixing plate, the upper end of each hinge rod is connected with the right fixing plate, and the lower ends of the two hinge rods are connected with the hoisting plate through hinge pins; and two ends of the hoisting plate are respectively provided with a round hole, one end of the hoisting plate is hinged with the hinge rod, and the other end of the hoisting plate is provided with a hole for hoisting.
2. The tool for hoisting the middle cylinder of the hydraulic oil cylinder clamp ring type according to claim 1, wherein the left fixing plate, the right fixing plate, the positioning block, the hinge rod, the adjusting rod, the pawl and the hoisting plate are connected to form a planar linkage mechanism.
3. A hydraulic ram clamp ring type middle cylinder lifting tool as claimed in claim 1 or 2, wherein the thickness of the positioning block is determined according to the size of the clamp ring inside the middle cylinder body.
4. The tool for hoisting the middle cylinder of the hydraulic oil cylinder clamp ring type according to claim 1 or 2, wherein the pawl is matched with the ratchet in the ratchet-shaped long groove on the adjusting rod to form a ratchet mechanism with the ratchet-shaped long groove capable of being opened automatically in one direction.
5. The tool for hoisting the clamp-ring type middle cylinder of the hydraulic oil cylinder as claimed in claim 1 or 2, wherein two positioning blocks at the outer sides of the left and right fixing plates are respectively clamped in the annular grooves of the clamp-ring type middle cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333116.8U CN211920654U (en) | 2020-03-17 | 2020-03-17 | Hydraulic cylinder snap ring type middle cylinder hoisting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020333116.8U CN211920654U (en) | 2020-03-17 | 2020-03-17 | Hydraulic cylinder snap ring type middle cylinder hoisting tool |
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| Publication Number | Publication Date |
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| CN211920654U true CN211920654U (en) | 2020-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020333116.8U Active CN211920654U (en) | 2020-03-17 | 2020-03-17 | Hydraulic cylinder snap ring type middle cylinder hoisting tool |
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| CN (1) | CN211920654U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607575A (en) * | 2020-12-26 | 2021-04-06 | 中国人民解放军陆军装甲兵学院 | Closed pump control asymmetric cylinder structure |
-
2020
- 2020-03-17 CN CN202020333116.8U patent/CN211920654U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607575A (en) * | 2020-12-26 | 2021-04-06 | 中国人民解放军陆军装甲兵学院 | Closed pump control asymmetric cylinder structure |
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