CN2937555Y - Concrete piston connector of concrete pump - Google Patents
Concrete piston connector of concrete pump Download PDFInfo
- Publication number
- CN2937555Y CN2937555Y CN 200620017784 CN200620017784U CN2937555Y CN 2937555 Y CN2937555 Y CN 2937555Y CN 200620017784 CN200620017784 CN 200620017784 CN 200620017784 U CN200620017784 U CN 200620017784U CN 2937555 Y CN2937555 Y CN 2937555Y
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- Prior art keywords
- concrete
- piston
- oil cylinder
- main oil
- connecting rod
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- Expired - Fee Related
Links
- 238000007667 floating Methods 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
The utility model belongs to the technical territory of concrete conveying pump and relates to a concrete piston connection device for concrete conveying pump comprising a concrete piston, a main oil cylinder piston rod and a floating connection rod. One end of the floating connection rod is connected with the concrete piston with floating and the other end is hinged with the main oil cylinder piston rod through a ball-end structure. Because the floating connection rod and a ball-hinge structure are simultaneously adopted, this device can eliminate simultaneously the coaxiality error caused by the translation and the deflection between a conveying cylinder and the axial line of a main oil cylinder with solving completely the coaxiality error between both, therefore the radial action force generated due to the processing and assembly error of the conveying cylinder is completely solved, the degree of wear of the concrete piston is conspicuously degraded, the phenomenon of eccentric wear and deadlocking of the concrete piston and the conveying cylinder is avoided and the reliability and the using life of the concrete pump are enhanced. Moreover, the utility model has a simple structure, can be repaired and changed conveniently and has wide practicalities on the concrete pump.
Description
Technical field
The utility model belongs to technical field of concrete pumps, relates to a kind of concrete piston of double-cylinder hydraulic piston concrete pump and the connection set of main oil cylinder piston bar.
Background technique
The double-cylinder hydraulic piston concrete pump is generally used at present, its working principle is: the concrete piston (custom is called the concrete piston) that the main oil cylinder piston bar that does reciprocating linear motion drives in the coaxial with it conveying cylinder is reciprocating, under the cooperation of distributing valve, finish the action of suction material.Master cylinder is rigidly connected by water tank with carrying cylinder, wherein the main oil cylinder piston bar can not keep coaxial fully with carrying cylinder, make the concrete piston in carrying cylinder, be subjected to the effect of radial force in the running, thereby cause concrete piston eccentric wear, when serious even stuck phenomenon can occur; In addition because the stroke of master cylinder is very long, generally all surpass 1.4m, that have even reach more than the 2m, make the oil cylinder proper functioning, must very high request be proposed to processing, assembly precision, slightly nearly will produce very big radial force, make therebetween seal ring (sealing of locating as main oil cylinder piston, piston rod and concrete piston etc.) produce serious inhomogeneous deformation, thereby cause serious eccentric wear, and then cause carrying cylinder inner core chromium coating to be ground away influencing the equipment proper functioning, thereby increased user cost and influenced project progress to the user.
In order to solve cylinder and the master cylinder out-of-alignment problem of carrying, the CN02264767.8 utility model patent discloses a kind of concrete pump piston connector, be between main oil cylinder piston bar and concrete piston, to add a spherical hinge structure, as shown in Figure 1, mainly by concrete piston 1 ' and bulb piston apparatus of linking with it, flange plate 6 ' and oil cylinder piston bar 9 ' composition of being fixedly connected with it, the tail end of bulb piston apparatus with connect oil cylinder piston bar 9 ' flange plate 6 ' by screw 8 ' rigid joint.The bulb piston apparatus by the ball bowl 2 of bulb connecting rod 5 ' match with bulb ' and fixedly ball bowl 2 ' pressing plate 3 ' form, the bulb piston apparatus by screw 4 ', screw 7 ' be separately fixed at concrete piston 1 ' and flange plate 6 ' on.
Above-mentioned technology only is to have alleviated master cylinder and carried the coaxiality error that causes owing to deflection between cylinder, but can not solve the coaxiality error that produces because of translation between the two axis, therefore the eccentric wear problem that can not really thoroughly solve the concrete piston and carry cylinder.
Summary of the invention
The concrete piston that the utility model causes for the disalignment that solves concrete pump simultaneously and carry cylinder and master cylinder to produce because of deflection and translation and the eccentric wear problem of conveying cylinder, and a kind of concrete pump concrete piston connection device is proposed.
This concrete pump concrete piston connection device comprises concrete piston, main oil cylinder piston bar, unsteady connecting rod; Described unsteady connecting rod one end is connected by ball pivot with described main oil cylinder piston bar with described floating type connection of concrete piston, the other end.
Described concrete pump concrete piston connection device, wherein: described unsteady connecting rod is provided with flange with the floating end end that described concrete piston connects, and described flange is located by pressing plate, floats in the stomidium of described concrete piston; The external diameter of described flange is less than the aperture of described stomidium, and thickness is less than the degree of depth of described stomidium; Described pressing plate is fixed on the end face that described concrete piston is provided with described stomidium.
Described concrete pump concrete piston connection device, wherein: have axial clearance between described flange and the described pressing plate, described axial clearance value is in 0.05～0.10mm scope.
Described concrete pump concrete piston connection device, wherein: the rounded end of described unsteady connecting rod and described main oil cylinder piston bar is provided with socket arrangement, connects described main oil cylinder piston bar by ball head structure; Described bulb is assemblied in the described ball-and-socket by the bulb pressing plate, and free to rotate with respect to described ball-and-socket.
Described concrete pump concrete piston connection device, wherein: described bulb and described oil cylinder piston bar are into a single integrated structure, are to stretch out towards described unsteady connecting rod along the top of described main oil cylinder piston bar.
Described concrete pump concrete piston connection device, wherein: described bulb tail end is rigidly connected by land and described oil cylinder piston bar.
This connection set is owing to adopt float connecting rod and spherical hinge structure simultaneously, can eliminate simultaneously and carry between cylinder and master cylinder axis the coaxiality error that causes because of translation and deflection, thereby thoroughly solve the coaxiality error problem of the two, thereby can thoroughly solve the radial effect power of carrying cylinder to produce because of processing, assembly error, obviously reduce concrete wearing for piston degree, eccentric wear and the stuck phenomenon having avoided the concrete piston and carried cylinder, the reliability and the working life of having improved concrete pump; And it is simple in structure, compact, and it is convenient to implement, and is easy to promote, and maintenance and replacing are convenient, have practicability widely on concrete pump.
Description of drawings
Fig. 1 is the connection set structural representation of prior art;
Fig. 2 is concrete pump concrete piston connection device embodiment's one an of the present utility model structural representation;
Fig. 3 is concrete pump concrete piston connection device embodiment's two an of the present utility model structural representation.
Embodiment
As shown in Figure 2, concrete pump concrete piston connection device of the present utility model comprises concrete piston 1, main oil cylinder piston bar 14, unsteady connecting rod 10; Wherein float connecting rod 10 1 ends and 1 floating type connection of concrete piston, the other end and main oil cylinder piston bar 14 are connected by spherical hinge structure.
The floating end end of unsteady connecting rod 10 is provided with a flange 3, and flange 3 is positioned at the stomidium 2 of concrete piston 1, with stomidium 2 Spielpassung, and spacing by the pressing plate 4 that is connected with concrete piston 1; Leave axial and radial clearance between flange 3 and the stomidium 2 simultaneously, so, can eliminate by floating of connecting rod 10 if between conveying cylinder and master cylinder axis, have translation error;
The rounded end of unsteady connecting rod 10 is provided with socket arrangement 9, be connected with main oil cylinder piston bar 14 by bulb 8, owing to be connected for ball pivot between main oil cylinder piston bar 14 and the unsteady connecting rod 10, so when having offset error between conveying cylinder and master cylinder axis, can be by the deflection of connecting rod 10 relative bulbs 8 with this error concealment;
By the two synergy, can eliminate all coaxiality errors of carrying between cylinder and master cylinder axis simultaneously, thereby thoroughly solve the coaxiality error problem of the two.
Below in conjunction with accompanying drawing an embodiment of the present utility model is further described.
Embodiment one
This concrete pump concrete piston connection device comprises concrete piston 1, unsteady connecting rod 10, pressing plate 4, screw 5, bulb briquetting 6, screw 7, bulb 8, main oil cylinder piston bar 14;
Wherein the floating end of unsteady connecting rod 10 is provided with flange 3, and another rounded end is provided with the ball-and-socket 9 that holds bulb 8;
An end that connects on the concrete piston 1, with connecting rod 10 is provided with stomidium 2, and flange 3 is assemblied in the stomidium 2 of concrete piston 1, installs spacing by pressing plate 4; The external diameter of flange 3 makes radially to have the gap between the two that the thickness of flange 3 makes axially also to have certain clearance between the two less than the degree of depth of stomidium 2 simultaneously less than the aperture of stomidium 2;
Pressing plate 4 is fixed on concrete piston 1 by screw 5 and is provided with on the end face of stomidium 2, the flange 3 of connecting rod 10 is fixed between concrete piston 1 and the pressing plate 4, make between flange 3 and concrete piston 1 and the pressing plate 4 and have the gap in the axial direction, make radial floating in the empty frame that connecting rod 10 just can surround at the stomidium and the pressing plate 4 of concrete piston 1 like this;
Bulb 8 is made of one structure with oil cylinder piston bar 14, and promptly bulb 8 stretches out to unsteady connecting rod 10 along the top of main oil cylinder piston bar 14, is installed in by bulb briquetting 6 in the ball-and-socket 9 of the connecting rod 10 that floats; Bulb briquetting 6 is fixed together by screw 7 and unsteady connecting rod 10, matches with ball-and-socket 9, forms a bulb cavity volume, and bulb 8 can turn an angle around any direction in the ball-and-socket 9 of connecting rod 10 that floats like this.
For ease of the assembling of connecting rod 10 with bulb 8, bulb briquetting 6 is divided into two-part up and down.
Can relatively rotate for making between connecting rod 10 and the bulb 8, should leave radial clearance between the ball-and-socket hole 9 of connecting rod 10 and the bulb 8, also should leave radial clearance between bulb briquetting 6 and bulb 8 and the main oil cylinder piston bar 14 simultaneously, be bulb 8 and ball-and-socket 9 Spielpassung, bulb 8 and main oil cylinder piston bar 14 and bulb briquetting 6 Spielpassung.
Embodiment two
As shown in Figure 3, different with embodiment one is: bulb 8 is individual components, is connected with oil cylinder piston bar 14 by land 11, and bulb 8 tail ends and land 11 are rigidly connected by screw 12, and land 11 and oil cylinder piston bar 14 are rigidly connected by screw 13.
The flange 3 of the floating end of unsteady connecting rod 10 is a flange arrangement.
Axial impact when reducing work, the flange 3 and the axial clearance between the pressing plate 4 of connecting rod 10 can not be too big, and the best clearance value is in 0.05～0.10mm scope.
As known by the technical knowledge, the utility model can be realized by other the embodiment that does not break away from its spirit or essential feature.Therefore, above-mentioned disclosed embodiment with regard to each side, all just illustrates, and is not only.All in the utility model scope or the change that is being equal in the scope of the present utility model all be included in the utility model.
Claims (6)
1, concrete pump concrete piston connection device comprises concrete piston, main oil cylinder piston bar, and it is characterized in that: described connection set also comprises unsteady connecting rod; Described unsteady connecting rod one end is connected by ball pivot with described main oil cylinder piston bar with described floating type connection of concrete piston, the other end.
2, concrete pump concrete piston connection device as claimed in claim 1 is characterized in that: described unsteady connecting rod is provided with flange with the floating end end that described concrete piston connects, and described flange is located by pressing plate, floats in the stomidium of described concrete piston; The external diameter of described flange is less than the aperture of described stomidium, and thickness is less than the degree of depth of described stomidium; Described pressing plate is fixed on the end face that described concrete piston is provided with described stomidium.
3, concrete pump concrete piston connection device as claimed in claim 2 is characterized in that: have axial clearance between described flange and the described pressing plate, described axial clearance value is in 0.05～0.10mm scope.
4, as claim 1 or 2 or 3 described concrete pump concrete piston connection devices, it is characterized in that: the rounded end of described unsteady connecting rod and described main oil cylinder piston bar is provided with socket arrangement, connects described main oil cylinder piston bar by ball head structure; Described bulb is assemblied in the described ball-and-socket by the bulb pressing plate, and free to rotate with respect to described ball-and-socket.
5, concrete pump concrete piston connection device as claimed in claim 4 is characterized in that: described bulb and described oil cylinder piston bar are into a single integrated structure, are to stretch out towards described unsteady connecting rod along the top of described main oil cylinder piston bar.
6, concrete pump concrete piston connection device as claimed in claim 4 is characterized in that: described bulb tail end is rigidly connected by land and described oil cylinder piston bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620017784 CN2937555Y (en) | 2006-08-16 | 2006-08-16 | Concrete piston connector of concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620017784 CN2937555Y (en) | 2006-08-16 | 2006-08-16 | Concrete piston connector of concrete pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2937555Y true CN2937555Y (en) | 2007-08-22 |
Family
ID=38361581
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620017784 Expired - Fee Related CN2937555Y (en) | 2006-08-16 | 2006-08-16 | Concrete piston connector of concrete pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2937555Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294445B (en) * | 2008-06-26 | 2010-04-21 | 三一重工股份有限公司 | Concrete piston and concrete conveying apparatus with the concrete piston |
| CN106838592A (en) * | 2017-01-19 | 2017-06-13 | 重庆佰思特智能装备有限公司 | A kind of pair of column constant temperature grease pump |
| CN109654085A (en) * | 2018-12-29 | 2019-04-19 | 武昌船舶重工集团有限公司 | A kind of lifesaving breakout equipment cylinder and its application |
-
2006
- 2006-08-16 CN CN 200620017784 patent/CN2937555Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101294445B (en) * | 2008-06-26 | 2010-04-21 | 三一重工股份有限公司 | Concrete piston and concrete conveying apparatus with the concrete piston |
| CN106838592A (en) * | 2017-01-19 | 2017-06-13 | 重庆佰思特智能装备有限公司 | A kind of pair of column constant temperature grease pump |
| CN109654085A (en) * | 2018-12-29 | 2019-04-19 | 武昌船舶重工集团有限公司 | A kind of lifesaving breakout equipment cylinder and its application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070822 Termination date: 20110816 |