CN113120743A - Combined core lifting appliance for casting - Google Patents
Combined core lifting appliance for casting Download PDFInfo
- Publication number
- CN113120743A CN113120743A CN201911411949.XA CN201911411949A CN113120743A CN 113120743 A CN113120743 A CN 113120743A CN 201911411949 A CN201911411949 A CN 201911411949A CN 113120743 A CN113120743 A CN 113120743A
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- Prior art keywords
- cross beam
- lifting
- positioning
- limiting
- casting
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- 238000005266 casting Methods 0.000 title claims abstract description 20
- 230000001681 protective effect Effects 0.000 claims abstract description 6
- 229940116364 hard fat Drugs 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 8
- 230000006378 damage Effects 0.000 abstract description 4
- 239000000428 dust Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- 238000003860 storage Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C1/00—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles
- B66C1/10—Load-engaging elements or devices attached to lifting or lowering gear of cranes or adapted for connection therewith for transmitting lifting forces to articles or groups of articles by mechanical means
- B66C1/12—Slings comprising chains, wires, ropes, or bands; Nets
- B66C1/14—Slings with hooks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
Abstract
The invention provides a combined core lifting appliance for casting, which comprises a cross beam, positioning devices, limiting devices, clamping devices and lifting devices, wherein the positioning devices, the limiting devices, the clamping devices and the lifting devices are arranged at two ends of the bottom of the cross beam; the clamping device comprises a hanging bracket and a lifting hook, the top end of the hanging bracket is hinged with the piston rod, and the middle part of the hanging bracket is hinged with the end part of the beam. According to the combined core lifting appliance for casting, due to the arrangement of the protective cover, harmful substances such as dust can be prevented from entering the pneumatic element to damage the pneumatic element, the movement reliability of the movable part is reduced, and meanwhile, operators can be protected from being damaged by the movable part. The operating handle of the lifting appliance is also arranged on the non-movable part, and the impact action of the movable part in the operating process cannot be directly transmitted to an operator. Therefore, the invention has high safety characteristic.
Description
Technical Field
The invention relates to the field of casting production, in particular to a combined core lifting appliance for casting.
Background
In the casting production process of the car engine cylinder body blank, the assembled sand core needs to be transferred to a storage and transportation trolley from the core assembling mould, and the combined sand core needs to be transferred to a core setting mould during core setting. The transfer operation during core setting needs to ship two groups of sand cores to the core setting mould, the mutual distance between the two groups of combined sand cores on the core setting mould is small, the distance between the combined sand core and the mould part is small, and the operation space is narrow. The invention patent application with the application publication number of CN 109110637A and the application publication number of 2019, 1.1.2019 discloses a sand core lifting appliance, which comprises a wrapping beam, a fixed support, a cylinder, a connecting rod, a lifting hook fixed seat, a limiting and positioning device and the like, wherein piston rods at two ends of the cylinder are respectively hinged with one end of the connecting rod, the connecting rod comprises a horizontal connecting rod and a vertical connecting rod, one end of the horizontal connecting rod is hinged with the piston rod, the other end of the horizontal connecting rod is hinged with the top end of the vertical connecting rod, the side wall of the vertical connecting rod is hinged with the end part of the beam, the bottom end of the vertical connecting rod is connected with the top of the lifting hook. Although this design can realize carrying out centre gripping location to the psammitolite through limiting the position device, it still has following defect:
first, there are safety concerns with this design. The operating handle is designed on the vertical connecting rod as a movable part, and when the lifting appliance is clamped and loosened, the air cylinder piston rod pushes the horizontal connecting rod to drive the vertical connecting rod to move, so that impact and even injury can be caused to a person holding the operating handle.
Secondly, the lifting hooks in the design are excessive, an over-positioning phenomenon exists, and some lifting hooks and sand core positioning holes are prone to being deviated in the clamping process, so that the sand core is prone to being knocked and damaged;
thirdly, in the design, the lifting hook and the lifting hook fixing seat are complex in structure, large in size and not suitable for operation in a narrow space; meanwhile, the overall structure of the lifting appliance adopts an asymmetric design, and the operation can be carried out only at one end of the lifting appliance.
Disclosure of Invention
The invention aims to provide a combined core lifting appliance for casting, aims to overcome the defects and problems of potential safety hazard, over-positioning and limited use in the prior art, and provides a combined core lifting appliance which is safe, good in positioning effect and used in a narrow space.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a combination core hoist is used in casting which characterized in that: the device comprises a cross beam, a positioning device, a limiting device, a clamping device and a lifting device, wherein the positioning device and the limiting device are arranged at two ends of the bottom of the cross beam; the clamping device comprises a hanging bracket and a lifting hook, the top end of the hanging bracket is hinged with the piston rod, and the middle part of the hanging bracket is hinged with the end part of the beam; a handle is arranged on the outer side wall of the cross beam; two cylinder fixing plates are arranged on two sides of the top of the cross beam; the air cylinder is fixed above the cross beam through the fixing plate and is arranged in parallel with the cross beam, a piston rod is arranged at one end of the air cylinder facing to the outer side, and the end part of the piston rod is hinged with the top end of the hanging bracket; the bottom end of the hanger is connected with the two lifting hooks; the positions of the two lifting hooks correspond to the lifting holes on the two sides of the sand core; and positioning devices used for being clamped with the square holes of the sand cores at the tops of the sand cores are arranged on two sides of the bottom of the cross beam.
The improvement of the technical scheme is as follows: the positioning device comprises a positioning block and a positioning seat, the positioning block is of a square structure matched with the cross section of the sand core hole, the longitudinal section of the positioning block is of an inverted trapezoid shape, the positioning block is made of hard plastic so as to protect a sand core from being collided in the positioning process, the positioning seat is arranged at the top of the positioning block in a square structure, and the sectional area of the positioning seat is not smaller than that of the positioning block; one end of the positioning seat is connected with the top of the positioning block, and the other end of the positioning seat is connected with the cross beam.
The technical scheme is further improved as follows: two sides of the bottom of the cross beam are provided with limiting devices, each limiting device comprises a fixed seat and a limiting block, and the cross section of each limiting block is of a square thin plate structure; the limiting block is made of hard plastic so as to protect the sand core from being collided during the descending limiting process of the lifting appliance, the fixing seat is of a square structure, and the surface for fixing the limiting block and the surface corresponding to the sand core have the same inclination. The limiting device and lifting hooks on two sides of the bottom end of the lifting frame form a three-point limiting and clamping structure.
The technical scheme is further improved: and adjusting bolts are arranged on the outer sides of the two ends of the cross beam and are used for adjusting the clamping force of the clamping device.
The technical scheme is further improved: the hooks on the outer sides of the two ends of the cross beam are connected with the chain of the lifting device, and the lifting appliance has the characteristics of small volume and convenient storage due to the fact that the chain is foldable and contractible.
The technical scheme is further improved: the lifting frame is of an inverted Y-shaped structure.
The technical scheme is further improved: and a protective cover is arranged outside the cross beam.
The technical scheme is further improved: and a throttle valve and a manual reversing valve are arranged in the center of the protective cover. And 2 double-acting cylinders are communicated with an air source through the throttle valve.
The technical scheme is further improved: one end of the air cylinder is connected with the inner side wall of the air cylinder fixing plate of the cross beam.
The technical scheme is further improved: handles are symmetrically arranged on the two outer side walls of the cross beam. The sand core lifting device is convenient for workers to freely use handles at any ends to lift sand cores to destinations.
Has the advantages that:
the combined core lifting appliance for casting has the following advantages:
1. because of being equipped with the protection casing, not only can prevent that harmful substance such as dust from getting into pneumatic element inside, harm pneumatic element, reduce the reliability of movable part motion, can protect operating personnel to avoid the injury of movable part simultaneously. The operating handle of the lifting appliance is also arranged on the non-movable part, and the impact action of the movable part in the operating process cannot be directly transmitted to an operator. Therefore, the invention has high safety characteristic.
2. The invention relates to a combined core lifting appliance for casting, wherein a limiting device and two lifting hooks of a lifting frame form a large triangular limiting structure. When the positioning and clamping operation of the sand core is carried out, the limiting device is firstly used for limiting, and then the cylinder piston rod moves to drive the lifting frame to clamp upwards, so that the purpose of positioning and clamping is achieved. The method has low requirement on initial positioning in the operation process, and has the characteristics of convenience and rapidness in operation and high efficiency.
3. According to the combined core lifting appliance for casting, the lifting frame adopts a simple inverted Y-shaped integral structure and is matched with the lifting hook in the shape of a thin plate, so that the purpose that the main clamping part of the lifting appliance is small in size is achieved. Therefore, the present invention has the characteristic of being operated in a narrow space, and has a wide range of applications, as shown in fig. 5.
4. The combined core lifting appliance for casting is integrally designed symmetrically, the lifting appliance can achieve self balance without adopting a balance weight, and has the characteristics of simple structure and light weight.
5. According to the combined core lifting appliance for casting, the positioning block and the limiting block are made of hard plastic. The hard.
Drawings
Fig. 1 is a schematic structural view of the spreader of the present invention.
Fig. 2 is a schematic structural view of the cross beam of fig. 1.
Fig. 3 is a schematic view of the structure of the hanger of fig. 1.
Fig. 4 is a schematic view of the structure of the composite core.
FIG. 5 is a schematic view of the present invention for transporting a composite core in a narrow space.
In the figure, a beam 1, a cylinder 01 fixing plate, a positioning device 2, a positioning seat 21, a positioning block 22, a limiting device 3, a fixing seat 31, a limiting block 32, a clamping device 4, a hanging bracket 41, a lifting hook 42, a handle 5, a shaft pin 6, a piston rod 7, an air cylinder 8, a manual reversing valve 9, a throttle valve 10, a lifting device 11, a lifting ring 1101, a chain 1102, a protective cover 12, a combined sand core 13, a sand core square positioning hole 131, a sand core lifting hole 132 and an adjusting bolt 14 are arranged.
Detailed Description
The combined core lifting appliance for casting, disclosed by the invention, comprises a cross beam 1, a positioning device 2 and a limiting device 3 which are arranged at two ends of the bottom of the cross beam 1, a clamping device 4 and a lifting device 11; the clamping device 4 comprises a hanger 41 and a hook 42, the top end of the hanger 41 is hinged with the piston rod 7, and the middle part of the hanger is hinged with the end part of the cross beam 1; a handle 5 is arranged on the outer side wall of the cross beam 1; two cylinder fixing plates 01 are arranged on two sides of the top of the cross beam 1; the cylinder 8 is fixed above the cross beam 1 through the fixing plate 01 and is arranged in parallel with the cross beam 1, a piston rod is arranged at one end, facing the outer side, of the cylinder 8, and the end of the piston rod is hinged to the top end of the hanger 41; the bottom end of the hanger 41 is connected with two lifting hooks 42; the positions of the two lifting hooks 42 correspond to the lifting holes 132 on the two sides of the sand core 13; two sides of the bottom of the beam 1 are provided with positioning devices 2 used for being clamped with the sand core square holes 131 at the tops of the sand cores 13, and the air cylinder 8 is a double-acting air cylinder in the embodiment; the positioning device 2 is clamped and positioned with a sand core hole 131 in the top of the sand core 13, then the air cylinder 8 is started to enable the piston rod 7 to extend outwards to push the top of the hanging bracket 41, and the middle side wall of the hanging bracket 41 is hinged with the end part of the cross beam 1, so that the bottom of the hanging bracket 41 moves inwards, the hanging hooks 42 are driven to move inwards and upwards to hook the lifting holes 132 in two sides of the sand core 13 and to be matched with the limiting device 3 to clamp the sand core 13 tightly, and then the lifting device 11 is lifted through a crown block and the like. The sand core can be accurately, conveniently and quickly positioned and clamped by using the device, and a single operator can use the lifting appliance to accurately, conveniently and quickly transfer the sand core.
The positioning device 2 comprises a positioning seat 21 and a positioning block 22; the positioning block 22 is a square structure matched with the cross section of the sand core hole 131; the limiting device 3 comprises a fixed seat 31 and a limiting block 32.
Two locating pieces 22 insert the psammitolite quad slit 131 simultaneously and block with it carries out the location of horizontal direction, and two stopper 32 limit the distance that the locating piece 22 inserted psammitolite quad slit 131 and the distance of lifting hook 42 and psammitolite lifting eye 132 in the vertical direction, realize the spacing of vertical direction to after guaranteeing to open cylinder 8, when the lifting hook 42 inwards moves, can insert in psammitolite handling hole 132, ensure the device normal operating.
Square openings for inserting the hanging brackets 41 are formed in two ends of the cross beam 1, and the side wall of the middle of each hanging bracket 41 is hinged to the end of the cross beam 1 through a shaft pin 6.
And adjusting bolts 14 are arranged on the outer sides of the two ends of the cross beam 1, and the adjusting bolts 14 are used for adjusting the clamping force of the clamping device 4.
The hooks on the outer sides of the two ends of the cross beam 1 are connected with the chains 1102 of the lifting device 11, and the chains 1102 can be folded and contracted, so that the lifting appliance has the characteristics of small volume and convenience in storage.
The cylinder 8 is communicated with an air source through a throttle valve 10, and the work of controlling the cylinder 8 through a reversing valve 9 in the center of the top of the cross beam 1 achieves that an operator can control the lifting appliance more flexibly and conveniently.
One end of the cylinder 8 is connected with the inner side wall of the cylinder fixing plate 01 of the cross beam 1.
The working process is as follows: the positioning device 2 is clamped and positioned with a sand core hole 131 in the top of the sand core 13, then the air cylinder 8 is started to enable the piston rod to extend outwards to push the hanging bracket 41, the middle part of the hanging bracket 41 is hinged with the end part of the cross beam 1, so that the bottom of the hanging bracket 41 moves inwards, the hanging hooks 42 are driven to move inwards and upwards to hook the hoisting holes 132 in two sides of the sand core 13 and are matched with the limiting device 3 to clamp the sand core 13 tightly, and then the hoisting rings 1101 are hoisted through a crown block and the like to realize hoisting of the sand core 13.
Claims (10)
1. The utility model provides a combination core hoist is used in casting which characterized in that: the device comprises a cross beam, a positioning device, a limiting device, a clamping device and a lifting device, wherein the positioning device, the limiting device, the clamping device and the lifting device are arranged at two ends of the bottom of the cross beam; the clamping device comprises a hanging bracket and a lifting hook, the top end of the hanging bracket is hinged with the piston rod, and the middle part of the hanging bracket is hinged with the end part of the beam; a handle is arranged on the outer side wall of the cross beam; two cylinder fixing plates are arranged on two sides of the top of the cross beam; the air cylinder is fixed above the cross beam through the fixing plate and is arranged in parallel with the cross beam, a piston rod is arranged at one end of the air cylinder facing to the outer side, and the end part of the piston rod is hinged with the top end of the hanging bracket; the bottom end of the hanger is connected with the two lifting hooks; the positions of the two lifting hooks correspond to the lifting holes on the two sides of the sand core; and positioning devices used for being clamped with the square holes of the sand cores at the tops of the sand cores are arranged on two sides of the bottom of the cross beam.
2. The modular core spreader for casting of claim 1, wherein: the positioning device comprises a positioning block and a positioning seat, the positioning block is of a square structure matched with the cross section of the sand core hole, the longitudinal section of the positioning block is of an inverted trapezoid shape, the positioning seat is of a square structure and is arranged at the top of the positioning block, and the sectional area of the positioning seat is not smaller than that of the positioning block; one end of the positioning seat is connected with the top of the positioning block, and the other end of the positioning seat is connected with the cross beam.
3. The modular core spreader for casting of claim 1, wherein: two sides of the bottom of the cross beam are provided with limiting devices, each limiting device comprises a fixed seat and a limiting block, and the cross section of each limiting block is of a square thin plate structure; the fixing seat is of a square structure, the surface of the fixed limiting block and the surface corresponding to the sand core have the same inclination, and the limiting device and the lifting hooks on the two sides of the bottom end of the lifting frame form a three-point limiting and clamping structure.
4. A modular core spreader for casting according to claim 2 or 3, wherein: the positioning block is made of hard fat plastic.
5. A foundry modular core spreader in accordance with claim 1, 2 or 3, wherein: and adjusting bolts are arranged on the outer sides of the two ends of the cross beam and are used for adjusting the clamping force of the clamping device.
6. A foundry modular core spreader in accordance with claim 1, 2 or 3, wherein: and hooks on the outer sides of the two ends of the cross beam are connected with a chain of the lifting device.
7. A foundry modular core spreader in accordance with claim 1, 2 or 3, wherein: the lifting frame is of an inverted Y-shaped structure.
8. A foundry modular core spreader in accordance with claim 1, 2 or 3, wherein: and a protective cover is arranged outside the cross beam.
9. The modular core spreader for casting of claim 8, wherein: a throttle valve and a manual reversing valve are arranged in the center of the protective cover, and 2 double-acting cylinders are communicated with an air source through the throttle valve.
10. A foundry modular core spreader in accordance with claim 1, 2 or 3, wherein: handles are symmetrically arranged on the two outer side walls of the cross beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911411949.XA CN113120743A (en) | 2019-12-31 | 2019-12-31 | Combined core lifting appliance for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911411949.XA CN113120743A (en) | 2019-12-31 | 2019-12-31 | Combined core lifting appliance for casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113120743A true CN113120743A (en) | 2021-07-16 |
Family
ID=76770363
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911411949.XA Pending CN113120743A (en) | 2019-12-31 | 2019-12-31 | Combined core lifting appliance for casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113120743A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115535820A (en) * | 2022-10-28 | 2022-12-30 | 安徽江淮汽车集团股份有限公司 | Large-size thin plate transferring lifting appliance |
| CN117125596A (en) * | 2023-10-26 | 2023-11-28 | 山西鑫宇机械制造股份有限公司 | Lifting device and method for sand box shakeout |
-
2019
- 2019-12-31 CN CN201911411949.XA patent/CN113120743A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115535820A (en) * | 2022-10-28 | 2022-12-30 | 安徽江淮汽车集团股份有限公司 | Large-size thin plate transferring lifting appliance |
| CN117125596A (en) * | 2023-10-26 | 2023-11-28 | 山西鑫宇机械制造股份有限公司 | Lifting device and method for sand box shakeout |
| CN117125596B (en) * | 2023-10-26 | 2023-12-19 | 山西鑫宇机械制造股份有限公司 | Lifting device and method for sand box shakeout |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210716 |
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| WD01 | Invention patent application deemed withdrawn after publication |