CN209778219U - adjustable abnormal shape hard connection hydraulic line suitable for narrow and small space - Google Patents
adjustable abnormal shape hard connection hydraulic line suitable for narrow and small space Download PDFInfo
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- CN209778219U CN209778219U CN201920371977.2U CN201920371977U CN209778219U CN 209778219 U CN209778219 U CN 209778219U CN 201920371977 U CN201920371977 U CN 201920371977U CN 209778219 U CN209778219 U CN 209778219U
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Abstract
The utility model discloses an adjustable heterotypic hard connection hydraulic line suitable for narrow and small space, including setting up the heterotypic high-pressure steel pipe assembly in the space region that forms between outer portal crossbeam and axle housing swell bottom, this heterotypic high-pressure steel pipe assembly is along the setting of buckling of the peripheral profile of axle housing swell, connect core threaded connection to have the nut, and the axle center length that connects the core is greater than or equal to the axle center length of nut. The utility model discloses a design of adjustable heterotypic hard joint hydraulic line for pipeline length reduces substantially and has reached the effect that reduces pipeline pressure loss, and pass through the steel pipe assembly at both ends and connect the pneumatic cylinder, make its thermal diffusivity promote by a wide margin, because the bent structural design that adopts of heterotypic high-pressure steel pipe assembly, reach the effect of directly linking between the left and right sides hydro-cylinder basically, and coupling nut along connect the dabber to adjustable structure on a large scale make production convenient assembling, efficient, can reach anticipated sealed effect in hydraulic piping system simultaneously.
Description
Technical Field
The utility model relates to a fork truck hydraulic line technical field specifically is an adjustable heterotypic hard joint hydraulic line suitable for narrow and small space.
background
The existing pipeline systems between the forklift cylinders are all n-shaped pipeline systems, the n-shaped pipelines can contain more connecting pipe joints, so that the n-shaped pipelines have higher oil leakage hidden danger after long-term use, meanwhile, the original n-shaped pipes are connected with hydraulic cylinders by high-pressure rubber pipes at joint parts at two ends, so that the heat dissipation performance of the original n-shaped pipes is poor, the problems of unadjustable length, inconvenient assembly, poor sealing performance and the like exist, and due to the structural characteristics of the n-shaped pipes, the pipelines are longer, and the system loss of the hydraulic pipelines is larger.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an adjustable heterotypic hard connection hydraulic line suitable for narrow and small space to solve the problem that proposes in the above-mentioned background art.
in order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an adjustable heterotypic hydraulic pressure pipeline that connects firmly suitable for narrow and small space, is including setting up the heterotypic high-pressure steel pipe assembly in the formed space region between outer portal crossbeam and axle housing swell bottom, and this heterotypic high-pressure steel pipe assembly is buckled along the outer profile of axle housing swell and is set up to near outer portal crossbeam is inboard, heterotypic high-pressure steel pipe assembly is including the steel pipe and install the joint core at the steel pipe both ends, connect core threaded connection to have the nut, and the axle center length that connects the core is greater than or equal to the axle center length of nut.
The special-shaped high-pressure steel pipe assembly is characterized in that two ends of the special-shaped high-pressure steel pipe assembly are horizontally bent, the special-shaped high-pressure steel pipe assembly is symmetrically arranged about a vertical central axis of a pipe body of the special-shaped high-pressure steel pipe assembly, and the middle of the special-shaped high-pressure steel pipe assembly is bent and bent along the concave-convex peripheral outline of the axle housing bulge and is used for avoiding the convex structure of the axle housing bulge.
And a clamping plate used for clamping the special-shaped high-pressure steel pipe assembly is arranged on the outer gantry beam.
One end of the special-shaped high-pressure steel pipe assembly is connected with a straight joint, the straight joint is connected with a right lifting oil cylinder, the other end of the special-shaped high-pressure steel pipe assembly is connected with a three-way joint, and the three-way joint is respectively connected with a speed limiting valve and a left lifting oil cylinder.
According to the above technical scheme, the utility model discloses a design of adjustable heterotypic hard connection hydraulic line, make pipeline length reduce by a wide margin, the quantity of using of connector in the original pipeline has been reduced simultaneously, the effect that reduces pipeline pressure loss has been reached, and pass through the steel pipe assembly at both ends and connect the pneumatic cylinder, original pipeline use high-pressure rubber pipe has been avoided, make its thermal diffusivity promote by a wide margin, because heterotypic high-pressure steel pipe assembly adopts bent structural design, can solidify the pipeline trend, narrow and small space connecting line between the left and right sides hydro-cylinder, reach the effect of directly connecting between the left and right sides hydro-cylinder basically, and the coupling nut makes production assembly convenient along the joint dabber to adjustable structure on a large scale, high efficiency, can reach anticipated sealed effect simultaneously in hydraulic piping system.
Drawings
FIG. 1 is a front view of the forklift of the present invention;
FIG. 2 is a partially enlarged view of the installation position of the present invention;
FIG. 3 is a side view partially enlarged view of the installation position of the present invention;
FIG. 4 is a sectional view of the installation position of the present invention;
FIG. 5 is a front view of the present invention;
Fig. 6 is a top view of the present invention;
Fig. 7 is a side view of the present invention;
Fig. 8 is a schematic diagram of an original forklift pipeline structure.
in the figure: the device comprises a speed limiting valve 1, a left lifting oil cylinder 2, a three-way joint 3, a left oil cylinder supporting seat 4, an outer gantry lower beam 5, an axle housing bulge 6, a special-shaped high-pressure steel pipe assembly 7, a nut 7-1, a joint core 7-2, a steel pipe 7-3, a right oil cylinder supporting seat 8, a straight-through joint 9, a right lifting oil cylinder 10, a clamping plate 11 and an n-shaped pipe 12.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
As shown in fig. 1-7, the adjustable abnormal-shape hard-connection hydraulic pipeline suitable for a narrow space comprises an abnormal-shape high-pressure steel pipe assembly 7 arranged in a space region formed between an outer gantry beam 5 and the bottom of an axle housing bulge 6, wherein the abnormal-shape high-pressure steel pipe assembly 7 is bent along the peripheral outline of the axle housing bulge 6 and is close to the inner side of the outer gantry beam 5, two ends of the abnormal-shape high-pressure steel pipe assembly 7 are horizontally bent, the abnormal-shape high-pressure steel pipe assembly 7 is symmetrically arranged about the vertical central axis of a pipe body of the abnormal-shape high-pressure steel pipe assembly 7, and the middle part of the abnormal-shape high-pressure steel pipe assembly 7 is concave-convex and bent along the peripheral outline of the axle housing bulge 6 and; the special-shaped high-pressure steel pipe assembly 7 comprises a steel pipe 7-3 and joint cores 7-2 installed at two ends of the steel pipe 7-3, the joint cores 7-2 are in threaded connection with nuts 7-1, and the axial length of the joint cores 7-2 is larger than or equal to that of the nuts 7-1.
Furthermore, a clamping plate 11 used for clamping the special-shaped high-pressure steel pipe assembly 7 is arranged on the outer gantry beam 5.
further, one end of the special-shaped high-pressure steel pipe assembly 7 is connected with a straight joint 9, the straight joint 9 is connected with a right lifting oil cylinder 10, a right oil cylinder supporting seat 8 is installed at the bottom of the right lifting oil cylinder 10, the other end of the special-shaped high-pressure steel pipe assembly 7 is connected with a three-way joint 3, the three-way joint 3 is respectively connected with a speed limiting valve 1 and a left lifting oil cylinder 2, and a left oil cylinder supporting seat 4 is arranged at the bottom of the left lifting oil cylinder 2.
As shown in fig. 8, which is a schematic diagram of a pipeline structure of an existing forklift, the pipeline is designed to be an n-type pipe 12, the pipeline is arranged between two cylinders of a forklift gantry, due to structural characteristics of the n-type pipe 12, too many connecting pipe joints are required at a corner, each more connecting pipe joint is equivalent to one more throttling, the number of the connecting pipe joints of the original n-type pipe 12 is more than that of the abnormal-shaped hard connection hydraulic pipeline, and the solid pressure loss is large.
It is worth mentioning that, the portal frame need go on the front and back slope during the operation of fork truck assembly, and axle housing swell 6 surpasss the front side longitudinal surface of outer portal bottom end rail 5, if the straightway between left side lift-up hydro-cylinder 2 and the right side lift-up hydro-cylinder 10 is connected can pass axle housing swell 6 promptly, for this reason can't be connected straightway hydraulic line between left side lift-up hydro-cylinder 2 and the right side lift-up hydro-cylinder 10. Therefore, a high-pressure hydraulic pipeline is connected between the left lifting oil cylinder 2 and the right lifting oil cylinder 10 in a curved direction to provide hydraulic driving force for the high-pressure hydraulic pipeline; because of the narrow and small space between axle housing swell 6 and the portal bottom end rail 5, if adopt the unable fixed hydraulic line trend of high-pressure hose, the hose freely rocks under the effect of high-pressure oil and has the potential safety hazard simultaneously, consequently according to the narrow and small space design abnormal shape hard link hydraulic line between axle housing swell 6 and the outer portal bottom end rail 5 for the intercommunication is realized to the high-pressure hydraulic line between the hydro-cylinder about fork truck oil pump and the hoisting system.
A high-pressure steel pipe joint is designed according to national standards by a common hard connection hydraulic pipeline, the space between the axle housing bulge 6 and the outer portal lower cross beam 5 is narrow, the connection distance of the high-pressure hydraulic pipeline between the left lifting oil cylinder and the right lifting oil cylinder is short, and two problems exist when the high-pressure steel pipe joint designed according to the national standards is connected with the left lifting oil cylinder and the right lifting oil cylinder to form a pipeline;
1: designing equal-length high-pressure steel pipes according to the theoretical required length, wherein the high-pressure steel pipes are not flexible and cannot be installed on the left lifting oil cylinder 2 and the right lifting oil cylinder 10;
2: if the high-pressure steel pipe is designed according to the size capable of being installed, the high-pressure steel pipe cannot ensure the sealing effect and leak oil after connecting joints at two sides and screwing enough torque;
according to the adjustable special-shaped hard connection hydraulic pipeline suitable for narrow spaces, after hydraulic oil from an oil pump is distributed through a multi-way valve, high-pressure hydraulic oil supplied to a hoisting system is divided into a left high-pressure oil path and a right high-pressure oil path through a speed-limiting valve 1 and a three-way joint 3, the left high-pressure oil path is connected with a left hoisting oil cylinder 2, and the right high-pressure oil path enters a right hoisting oil cylinder 10 through a special-shaped high-pressure steel pipe assembly 7 and a straight joint 9;
in the figures 3 and 4, a clamping plate 11 is welded on the rear side surface of the lower beam 5 of the outer gantry to limit the special-shaped high-pressure steel pipe assembly 7;
In the fig. 5, 6 and 7, the nut 7-1, the joint core 7-2 and the steel pipe 7-3 form the special-shaped high-pressure steel pipe assembly 7, the nut 7-1 is marked with a dimension L1, the joint core 7-2 is marked with a dimension L2, L2 is kept to be more than or equal to L1 in the special-shaped high-pressure steel pipe assembly 7, the nut 7-1 can be adjusted in a large range of axial length along the joint core 7-2, and the length of L2 is set according to the requirement of a high-pressure hydraulic pipeline connecting space, so that the special-shaped high-pressure steel pipe assembly adopted in a limited hydraulic pipeline system is good in; the steel pipe 7-3 is bent twice in the special-shaped high-pressure steel pipe assembly 7, and the bending angles a and b are designed according to the requirement of a narrow space, so that the special-shaped high-pressure steel pipe assembly 7 is arranged in a hydraulic pipeline and then abuts against the outer gantry lower cross beam 5.
The above-mentioned embodiments are only for describing the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall into the protection scope defined by the claims of the present invention.
Claims (4)
1. The utility model provides an adjustable heterotypic hard joint hydraulic line suitable for narrow and small space which characterized in that: including setting up the heterotypic high-pressure steel pipe assembly in the space region that forms between outer portal crossbeam and axle housing swell bottom, this heterotypic high-pressure steel pipe assembly is buckled along the peripheral profile of axle housing swell and is set up to it is inboard near outer portal crossbeam, heterotypic high-pressure steel pipe assembly is including the steel pipe and install the joint core at the steel pipe both ends, joint core threaded connection has the nut, and the axle center length of joint core is greater than or equal to the axle center length of nut.
2. the adjustable abnormal shape hard connection hydraulic line suitable for narrow space according to claim 1, characterized in that: the special-shaped high-pressure steel pipe assembly is characterized in that two ends of the special-shaped high-pressure steel pipe assembly are horizontally bent, the special-shaped high-pressure steel pipe assembly is symmetrically arranged about a vertical central axis of a pipe body of the special-shaped high-pressure steel pipe assembly, and the middle of the special-shaped high-pressure steel pipe assembly is bent and bent along the concave-convex peripheral outline of the axle housing bulge and is used for avoiding the convex structure of the axle housing bulge.
3. The adjustable abnormal shape hard connection hydraulic line suitable for narrow space according to claim 1, characterized in that: and a clamping plate used for clamping the special-shaped high-pressure steel pipe assembly is arranged on the outer gantry beam.
4. The adjustable abnormal shape hard connection hydraulic line suitable for narrow space according to claim 1, characterized in that: one end of the special-shaped high-pressure steel pipe assembly is connected with a straight joint, the straight joint is connected with a right lifting oil cylinder, the other end of the special-shaped high-pressure steel pipe assembly is connected with a three-way joint, and the three-way joint is respectively connected with a speed limiting valve and a left lifting oil cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920371977.2U CN209778219U (en) | 2019-03-22 | 2019-03-22 | adjustable abnormal shape hard connection hydraulic line suitable for narrow and small space |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920371977.2U CN209778219U (en) | 2019-03-22 | 2019-03-22 | adjustable abnormal shape hard connection hydraulic line suitable for narrow and small space |
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| CN209778219U true CN209778219U (en) | 2019-12-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850815A (en) * | 2019-03-22 | 2019-06-07 | 安徽合力股份有限公司 | A kind of adjustable special-shaped Hard link fluid pressure line suitable for small space |
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2019
- 2019-03-22 CN CN201920371977.2U patent/CN209778219U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109850815A (en) * | 2019-03-22 | 2019-06-07 | 安徽合力股份有限公司 | A kind of adjustable special-shaped Hard link fluid pressure line suitable for small space |
| CN109850815B (en) * | 2019-03-22 | 2024-03-29 | 安徽合力股份有限公司 | Adjustable special-shaped hard-connection hydraulic pipeline suitable for narrow space |
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