CN214363368U - A block and float row for hydraulic and hydroelectric engineering adopts rotation type guide way structure - Google Patents
A block and float row for hydraulic and hydroelectric engineering adopts rotation type guide way structure Download PDFInfo
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- CN214363368U CN214363368U CN202120499203.5U CN202120499203U CN214363368U CN 214363368 U CN214363368 U CN 214363368U CN 202120499203 U CN202120499203 U CN 202120499203U CN 214363368 U CN214363368 U CN 214363368U
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- guide groove
- rotary guide
- supporting device
- hinged support
- rotary
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Abstract
The utility model provides a floating dam which is used for hydraulic and hydroelectric engineering and adopts a rotary guide groove structure, wherein a plurality of groups of rotary guide groove units are arranged in parallel from top to bottom between the side surface of a concrete buttress and a buoyancy tank; each group of rotary guide groove units comprises a fixed hinged support, a rotating shaft, a movable hinged support, a guide groove, a roller and a supporting device. Has the following advantages: (1) the rotary guide groove structure floating blocking row improves the stress mode of the stress structure of the floating blocking row supporting device, changes the normal supporting device from a bidirectional bending, shearing and twisting stress mode into a unidirectional bending and shearing stress mode, and has simpler structural design. (2) When the concrete buttress bearing surface is obliquely arranged, the rotary guide groove arrangement scheme can effectively eliminate adverse effects caused by downward component force along the inclined surface of the guide groove when the guide groove is obliquely arranged, obviously improves the arrangement of the float blocking row and facilitates the operation and management of the float blocking row.
Description
Technical Field
The utility model belongs to the technical field of hydraulic engineering equipment, concretely relates to block and float row that is used for hydraulic and hydroelectric engineering to adopt rotation type guide way structure.
Background
The floating blocking row is important sewage blocking equipment in water conservancy and hydropower engineering, and is usually used for blocking water surface floating objects in a river channel, protecting downstream ecological environment and ensuring normal operation of hydroelectric power generation equipment. The floating blocking row mainly comprises a group of floating box structures, guide grooves and the like, supporting devices are arranged at two ends of a floating box of the floating blocking row, two groups of force transmission guide wheel devices are arranged on the supporting devices, one group of guide wheels are arranged along the direction of the initial installation axis of the floating blocking row, and the other group of guide wheels are arranged along the direction vertical to the axis of the floating blocking row. The guide groove is usually poured in a concrete structure, the supporting device is arranged in the floating row blocking guide groove, and when the water level of a river channel changes, the floating row blocking buoyancy tank structure drives the supporting device to float up and down along the guide groove.
When the float blocking row is in a working state, under the action of external force loads such as water flow and the like, the planar shape of the float blocking row is generally in a suspension chain type, and a deflection angle is formed by the tensile force at the rotating hinge positions at the two ends of the float blocking row and the initial axis of the guide groove. Two groups of guide wheels in the float blocking row supporting device bear component forces of work tension of the float blocking row in two mutually perpendicular directions in the guide groove, and external loads in the two directions need to be considered when the structure of the supporting device is designed, so that not only bending and shearing bearing capacities in the two directions need to be considered when the structure is calculated, but also the torsion bearing capacity of a rechecking structure is needed.
In the engineering practice, the concrete buttress at the two ends of the floating block row is often made into an inclined structure under the influence of terrain conditions. In order to adapt to the inclined buttress surface, the floating blocking guide groove is also arranged in an inclined manner. When the float interception row works, the working tension has a downward component force along the guide groove which is obliquely arranged, and the component force has the tendency of making the float interception row supporting device sink, which is not beneficial to the normal use of the float interception row. In order to overcome the adverse effect brought by the inclined arrangement of the guide grooves of the float blocking row, the common method comprises the following steps:
1. mechanical lifting equipment is arranged on the top surfaces of the concrete buttresses at two sides, and the floating block is lifted by external force. The disadvantages of this method are: the mechanical equipment is in a stressed state all the year round, and the working stroke of the equipment needs to be adjusted frequently so as to ensure that the two ends of the float blocking row are always near the water surface;
2. the two ends of the floating blocking row are provided with larger buoyancy tank structures, and the downward component force of the supporting device is counteracted by the buoyancy provided by the buoyancy tanks. Because the downward component force of the supporting device is often larger, the volume of the buoyancy tank is also larger, and the overlarge buoyancy tank is not beneficial to the manufacture, transportation and operation of the buoyancy tank;
3. the supporting devices at the two ends of the floating blocking row are directly fixed, so that the floating blocking row does not float up and down along with the lifting of the water surface. The method is not beneficial to the trash blocking of the floating block, and dirt is easy to discharge from the two ends of the floating block to the downstream.
SUMMERY OF THE UTILITY MODEL
The defect to prior art existence, the utility model provides a block that is used for hydraulic and hydroelectric engineering to adopt rotation type guide way structure floats row, can effectively solve above-mentioned problem.
The utility model adopts the technical scheme as follows:
the utility model provides a floating dam which is used for hydraulic and hydroelectric engineering and adopts a rotary guide groove structure, wherein a plurality of groups of rotary guide groove units are arranged in parallel from top to bottom between the side surface of a concrete buttress (1) and a buoyancy tank (8);
each group of rotary guide groove units comprises a fixed hinged support (2), a rotating shaft (3), a movable hinged support (4), a guide groove (5), a roller (6) and a supporting device (7);
one end of the fixed support hinged support (2) is fixed with the concrete buttress (1); the other end of the fixed support hinged support (2) is rotatably connected with one end of the movable support hinged support (4) through the rotating shaft (3), so that the movable support hinged support (4) can rotate around the rotating shaft (3) in the horizontal direction; in addition, the rotating shafts (3) of the rotary guide groove units are on the same vertical axis;
the other end of the movable supporting hinged support (4) is fixed with one end of the guide groove (5); the guide groove (5) is a guide groove along the vertical direction; one end of the supporting device (7) is fixed with the buoyancy tank (8); the other end of the supporting device (7) is fixedly provided with the roller (6), and the roller (6) is embedded into the guide groove (5), so that the whole formed by the floating box (8), the supporting device (7) and the roller (6) can perform vertical lifting motion along the guide groove (5).
Preferably, the concrete buttress (1) is a concrete buttress with an inclined slope surface; the distance between the rotating shaft (3) of each group of the rotary guide grooves and the slope surface of the inclined edge is unequal.
Preferably, the concrete buttress (1) is a concrete buttress with a vertical slope surface, and the distance between the rotating shaft (3) of each group of the rotary guide grooves and the vertical slope surface is equal.
Preferably, the number of the rollers (6) arranged in each group of the rotary guide groove units is two.
The utility model provides a pair of what be used for hydraulic and hydroelectric engineering adopts rotation type guide way structure blocks and floats row has following advantage:
(1) the rotary guide groove structure floating blocking row improves the stress mode of the stress structure of the floating blocking row supporting device, changes the normal supporting device from a bidirectional bending, shearing and twisting stress mode into a unidirectional bending and shearing stress mode, and has simpler structural design.
(2) When the concrete buttress bearing surface is obliquely arranged, the rotary guide groove arrangement scheme can effectively eliminate adverse effects caused by downward component force along the inclined surface of the guide groove when the guide groove is obliquely arranged, obviously improves the arrangement of the float blocking row and facilitates the operation and management of the float blocking row.
Drawings
FIG. 1 is a schematic diagram of a float retaining strip with a rotary guide groove structure arranged on a vertical concrete buttress, provided by the utility model;
FIG. 2 is a schematic diagram of a float retaining row with a rotary guide groove structure arranged on an inclined concrete buttress, provided by the utility model;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 1 in an initial installed state;
FIG. 4 is a cross-sectional view taken along A-A of FIG. 1 in an operational state;
wherein:
1-concrete buttress, 2-fixed hinged support, 3-rotating shaft, 4-movable hinged support and 5-guide groove,
6-roller, 7-supporting device, 8-buoyancy tank.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to further explain the present invention in detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
The utility model relates to a block floating row of blocking filth in the river course among the hydraulic and hydroelectric engineering, especially relate to blocking floating row of adopting rotation type guide way structure among the hydraulic and hydroelectric engineering, be particularly useful for blocking floating row that sets up on tilting concrete buttress face.
Referring to fig. 1 and 2, the utility model provides a floating dam for hydraulic and hydroelectric engineering, which adopts a rotary guide groove structure, wherein a plurality of groups of rotary guide groove units are arranged in parallel from top to bottom between the side surface of a concrete buttress 1 and a buoyancy tank 8;
each group of rotary guide groove units comprises a fixed hinged support 2, a rotating shaft 3, a movable hinged support 4, a guide groove 5, a roller 6 and a supporting device 7;
one end of the fixed support hinged support 2 is fixed with the concrete buttress 1; the other end of the fixed hinged support 2 is rotatably connected with one end of the movable hinged support 4 through the rotating shaft 3, so that the movable hinged support 4 can rotate around the rotating shaft 3 in the horizontal direction; in practical application, the rotating shaft 3 may adopt a pin.
In addition, the rotating shafts 3 of the respective rotary guide groove units are on the same vertical axis; specifically, referring to fig. 2, a schematic diagram of the arrangement of the rotary guide groove unit on the inclined concrete buttress is shown, and it can be seen that the concrete buttress 1 is a concrete buttress with an inclined slope; the distances from the rotating shafts 3 of the rotary guide groove units to the inclined side slope surfaces are unequal, but the rotating shafts 3 of the rotary guide groove units are kept on the same vertical axis. Alternatively, referring to fig. 1, which is a schematic view of the arrangement of the rotary guide channel units on an upright concrete pier, it can be seen that the concrete pier 1 is a concrete pier with a vertical slope surface, and the rotating shafts 3 of the rotary guide channels of each group are equally spaced from the vertical slope surface, thereby maintaining the rotating shafts 3 of the rotary guide channel units on the same vertical axis.
The other end of the movable supporting hinged support 4 is fixed with one end of the guide groove 5; the guide groove 5 is a guide groove along the vertical direction; one end of the supporting device 7 is fixed with the buoyancy tank 8; the other end of the supporting device 7 is fixedly provided with rollers 6, and the number of the rollers 6 arranged in each group of rotary guide groove units is two. The roller 6 is inserted into the guide groove 5, so that the whole formed by the buoyancy tank 8, the supporting device 7 and the roller 6 can perform vertical lifting motion along the guide groove 5.
The utility model provides a block that is used for hydraulic and hydroelectric engineering to adopt rotation type guide way structure floats row, its theory of operation is:
(1) the floating box 8, the supporting device 7, the guide groove 5 and the movable supporting hinged support 4 form a whole body which can rotate on a horizontal plane around the vertical rotating shaft 3.
In the initial installation state, namely the state shown in fig. 3, the direction of the float blocking axis is consistent with the direction of the installation axis of the guide groove in the drawing.
When the floating blocking row works normally and is under the action of external force loads such as water flow and the like, the whole formed by the floating box 8, the supporting device 7, the guide groove 5 and the movable support hinge seat 4 rotates around the rotating shaft 3 to deviate downstream, and a deflection angle is formed between the axis of the floating blocking row and the installation axis of the guide groove, so that the state shown in figure 4 is formed.
(2) When the concrete buttress bearing surface is obliquely arranged, namely in the state shown in fig. 2, the length of the fixed hinged support 2 is adjusted to enable the rotating shafts 3 of each group of rotary guide groove units to be in a rotating mode, namely: the rotation center of the movable support hinge seat 4 is still kept on the same vertical axis, and the rotation of the float blocking guide groove around the rotating shaft 3 is not influenced.
The utility model provides a block that is used for hydraulic and hydroelectric engineering to adopt rotation type guide way structure floats row has following advantage:
(1) the rotary guide groove structure floating blocking row improves the stress mode of the stress structure of the floating blocking row supporting device, changes the normal supporting device from a bidirectional bending, shearing and twisting stress mode into a unidirectional bending and shearing stress mode, and has simpler structural design.
(2) When the concrete buttress bearing surface is obliquely arranged, the rotary guide groove arrangement scheme can effectively eliminate adverse effects caused by downward component force along the inclined surface of the guide groove when the guide groove is obliquely arranged, obviously improves the arrangement of the float blocking row and facilitates the operation and management of the float blocking row.
In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In the present invention, unless otherwise explicitly specified or limited, for example, it may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. A floating guide row adopting a rotary guide groove structure for hydraulic and hydroelectric engineering is characterized in that a plurality of groups of rotary guide groove units are arranged in parallel from top to bottom between the side surface of a concrete buttress (1) and a buoyancy tank (8);
each group of rotary guide groove units comprises a fixed hinged support (2), a rotating shaft (3), a movable hinged support (4), a guide groove (5), a roller (6) and a supporting device (7);
one end of the fixed support hinged support (2) is fixed with the concrete buttress (1); the other end of the fixed support hinged support (2) is rotatably connected with one end of the movable support hinged support (4) through the rotating shaft (3), so that the movable support hinged support (4) can rotate around the rotating shaft (3) in the horizontal direction; in addition, the rotating shafts (3) of the rotary guide groove units are on the same vertical axis;
the other end of the movable supporting hinged support (4) is fixed with one end of the guide groove (5); the guide groove (5) is a guide groove along the vertical direction; one end of the supporting device (7) is fixed with the buoyancy tank (8); the other end of the supporting device (7) is fixedly provided with the roller (6), and the roller (6) is embedded into the guide groove (5), so that the whole formed by the floating box (8), the supporting device (7) and the roller (6) can perform vertical lifting motion along the guide groove (5).
2. The float guard bar adopting the rotary guide groove structure for the water conservancy and hydropower engineering according to claim 1, wherein the concrete buttress (1) is a concrete buttress with an inclined edge slope; the distance between the rotating shaft (3) of each group of the rotary guide grooves and the slope surface of the inclined edge is unequal.
3. The float retaining bar adopting the rotary guide groove structure for the water conservancy and hydropower engineering as claimed in claim 1, wherein the concrete buttress (1) is a concrete buttress with a vertical slope surface, and the distance from the rotating shaft (3) of each group of the rotary guide grooves to the vertical slope surface is equal.
4. The float retaining bar adopting the rotary type guide groove structure for the water conservancy and hydropower engineering is characterized in that the number of the rollers (6) arranged in each group of the rotary type guide groove units is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120499203.5U CN214363368U (en) | 2021-03-09 | 2021-03-09 | A block and float row for hydraulic and hydroelectric engineering adopts rotation type guide way structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120499203.5U CN214363368U (en) | 2021-03-09 | 2021-03-09 | A block and float row for hydraulic and hydroelectric engineering adopts rotation type guide way structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214363368U true CN214363368U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120499203.5U Active CN214363368U (en) | 2021-03-09 | 2021-03-09 | A block and float row for hydraulic and hydroelectric engineering adopts rotation type guide way structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214363368U (en) |
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2021
- 2021-03-09 CN CN202120499203.5U patent/CN214363368U/en active Active
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