CN211076250U - Force-decomposing pontoon water-taking rocker arm loose joint - Google Patents
Force-decomposing pontoon water-taking rocker arm loose joint Download PDFInfo
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- CN211076250U CN211076250U CN201921805938.5U CN201921805938U CN211076250U CN 211076250 U CN211076250 U CN 211076250U CN 201921805938 U CN201921805938 U CN 201921805938U CN 211076250 U CN211076250 U CN 211076250U
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Abstract
The utility model discloses a loose joint of atress decomposition formula wharf boat water intaking rocking arm, which comprises a body, wheel components, bear the carousel, the rocking arm, three way connection, horizontal telescopic joint, rocker arm support frame, the body is on during operation fixed mounting at ship base or bank base buttress base, multiunit wheel components equipartition is connected in the lower terminal surface that bears the carousel, two rocker arm support frame symmetric connection are in the up end that bears the carousel, the rocking arm, horizontal telescopic joint, three way connection links into an organic whole and supports on rocker arm support frame through horizontal telescopic joint, the rocking arm drives horizontal telescopic joint and can be the vertical direction rotation from top to bottom around horizontal telescopic joint axis in rocker arm support frame's holding hole, also can wind body upper end ring post center horizontal rotation. The utility model discloses an optimize structure, decompose the atress and solve the loose joint of current rotatory gyro wheel rocking arm leak and motion jamming and vibration problem, simple structure, the atress is reasonable, rotates in a flexible way, and is sealed reliable.
Description
Technical Field
The utility model belongs to the technical field of marine facilities, relate to rivers and lakes water intaking marine facilities, concretely relates to loose joint of atress decomposition formula wharf boat water intaking rocking arm.
Background
The water of rivers, lakes is lifted to a higher position on the shore to be used as a water source of a water supply plant, an irrigation water source, a factory cooling water source and other water sources with other purposes, and a pumping wharfboat form is adopted mostly, because the pumping wharfboat form has less investment and short construction period under the condition of the same water taking amount, the water taking in river basin and lakes is widely adopted.
The pumping wharf boat pumps water from rivers and lakes and then conveys the water to the bank through a water conveying pipeline, and because of the change of water level and flow velocity of the rivers, the lakes and the water in four seasons, the relative position relation between the wharf boat and the bank base changes along with the change of the water level and the flow velocity, so that a connecting pipe between the wharf boat and the bank must have the function of automatically adjusting the rotation angle in the vertical direction and the horizontal direction to automatically adapt to the displacement of the wharf boat, and in terms of the prior art, the following connection modes are mainly adopted:
(1) the hose connection mode is as follows: building cement hardening ramp on bank base slope between historical highest water level and lowest water level, fixedly set up the water delivery steel pipe on the ramp, according to highest, lowest water level, divide a plurality of lateral pipe interfaces on the raceway, wharf boat water delivery outlet adopts rubber hose and bank base steel pipe on the lateral pipe interface be connected, select the lateral pipe interface according to different water levels, when the water level change, the wharf boat reciprocates thereupon, need the manual work to tear open the interface of trading hose and bank base water delivery branch pipe, consequently this connected mode can only be applicable to the little wharf boat of water delivery pipe diameter.
(2) The connection mode of the rocker arm loose joint is as follows: the wharf boat and the shore base are respectively provided with a rocker arm loose joint special for a water pumping wharf boat, a steel pipe is adopted between the two rocker arm loose joints to be connected with the rocker arm output (on-boat) pipe connector and the rocker arm input (on-shore) pipe connector of the rocker arm loose joint, and the rocker arm output (output) pipe of the rocker arm loose joint can rotate at a large angle which is more than +/-45 degrees vertically and +/-60 degrees horizontally. Therefore, when the water level changes, the pontoon moves up and down along with the water level or the boat moves back and forth, the shore connecting pipe automatically rotates along with the rocker arm loose joint in the horizontal and vertical directions without manual operation.
(3) The connection mode of the spherical joint is as follows: the pontoon and the shore base are respectively provided with a spherical joint, the two spherical joints are connected with an output (on the pontoon) and an input (on the shore) by adopting steel pipes, and the output (on the pontoon) and the input (on the shore) of the spherical joints can rotate vertically (up and down) and horizontally (left and right) by taking the center of a sphere as a circular point and rotate in a positive direction and a negative direction around the center line of a connecting pipe. Therefore, when the water level changes, the pontoon moves up and down along with the water level or moves back and forth and swings in pitching mode, the shore connecting pipe can automatically rotate along with the spherical joint X, Y, Z (namely universal), and manual operation is not needed.
From the theory of motion, the ball joint connection form is the best, and the rocker arm loose joint form is the second. However, due to the structure of the spherical joint, the working angle of the spherical joint is too small, generally less than or equal to +/-18 degrees, and the spherical joint cannot be used in river basins with large water level fall and urgent water flow kicking. Therefore, for a water intake wharf boat with a large water delivery pipe diameter, the most adopted rocker arm loose joint mode is the rocker arm loose joint mode with a large working angle.
The structural form of the traditional rocker arm loose joint is mostly designed according to the structural form of a rotating roller rocker arm loose joint in a wharf boat water intaking loose joint in volume 1.1 of handbook of design of water supply and drainage 9; according to the use condition, the following two problems exist in most loose joints:
(1) the packing seal of the vertical and horizontal expansion joint is easy to leak;
(2) the rocker arm is easy to be blocked when rotating horizontally, and the rocker arm vibrates greatly when rotating.
The two problems directly influence the normal work of the rocker arm loose joint, and the potential safety hazard exists and the service life is reduced. Through the structural analysis of the rotating roller rocker arm loose joint, the problem is caused by the unreasonable design of the conical groove bearing ring and the conical roller kinematic pair. When the rocker arm loose joint works, the rocker arm loose joint is under the action of the load (dead weight and water weight) of a ship bank connecting pipe and external force (water flow and wind) of a pontoon, the external force is transmitted to the bearing rotary table and the conical roller group through the bearing support, and the conical roller simultaneously bears the stress in the vertical direction and the horizontal direction and transmits the force to the conical groove bearing ring on the body and then transmits the force to the base. Generally, 6 or more conical roller groups are uniformly distributed in the bearing ring groove of the conical groove, the roller groups are manually installed in the bearing ring groove of the conical groove, and all the rollers are difficult to adjust to the same rotation center. When the rocker arm is stressed, the bearing turntable drives the rollers to move towards the stress direction until the 5mm gap is eliminated according to the stress direction of the horizontal component force, theoretically, only 2 rollers at most have upper and lower edges in contact with the tapered groove to work, namely all the horizontal component force is borne by 2 groups of rollers at most, and the horizontal component force is usually very large and is larger than the vertical component force when the rocker arm works. In case of strong horizontal forces, the following two problems arise: (1) the bearing rotary table is pushed to the other end in the stress direction and drives the vertical expansion joint to press the sealing filler, so that the single side of the filler sealing is stressed, and the sealing is easy to leak. (2) The taper roller and the taper groove are in taper contact, so that under the action of strong axial force, great friction force can be generated, the self-locking trend is realized, clamping stagnation is easy to occur, once the rocker arm rotates horizontally, the rotating torque is very large, great vibration can be generated frequently, the abrasion of the roller and the groove is great, and the service life is shortened. In addition, under the action of water pressure, the Y-shaped rocker arm drives the horizontal expansion joint to open towards two sides and form an included angle with the horizontal axis, so that the horizontal packing is sealed and stressed on one side, and leakage is easily caused.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned problem and the defect that exists among the prior art, the utility model provides a loose joint of atress decomposition formula wharf boat water intaking rocking arm solves current loose joint of rotatory gyro wheel rocking arm's leaking and motion jamming and vibration problem through optimizing structural design, decomposition atress, and simple structure, the atress is reasonable, rotates in a flexible way, and is sealed reliable.
Therefore, the utility model adopts the following technical scheme:
the utility model provides a detachable joint of atress decomposition formula wharf boat water intaking rocking arm, includes body, wheel components, bears carousel, rocking arm, three way connection, horizontal telescopic joint, rocker arm support frame, the body is at during operation fixed mounting on wharf boat base or bank base buttress base, and multiunit wheel components equipartition is connected in the lower terminal surface that bears the carousel, and two rocker arm support frame symmetric connection are in the up end that bears the carousel, and rocking arm, horizontal telescopic joint, three way connection link into an organic whole and support on rocker arm support frame through horizontal telescopic joint, and the rocking arm drives horizontal telescopic joint and can be the vertical direction and rotate from top to bottom around horizontal telescopic joint axis in rocker arm support frame's stay hole, also can wind body upper end ring post center horizontal rotation.
Preferably, the inner ring of the bearing rotary table is provided with a copper alloy sliding bearing which is fixedly connected, the upper end face of the body is provided with a circular column, the sliding bearing of the bearing rotary table is sleeved on the circular column at the upper end of the body, and the roller component supports the rocker arm, the horizontal telescopic joint, the three-way joint, the rocker arm support frame and the bearing rotary table on a plane track at the upper end face of the body and can horizontally rotate around the center of the circular column at the upper end of the body.
Preferably, the circular column on the upper end surface of the body and the vertical telescopic joint of the three-way joint are positioned on the same axial lead.
Preferably, the rocker arm is connected with the horizontal telescopic joint through a flange.
Preferably, the device also comprises a horizontal stud pull rod, a horizontal packing seal, a vertical axial thrust plate and a vertical packing seal; the horizontal packing seals are positioned at the two horizontal ends of the tee joint, and the telescopic ends of the horizontal telescopic joints are inserted into the horizontal packing seals at the two ends of the tee joint and can axially extend and retract; the horizontal stud pull rod is positioned in a flange hole at the outer side of the horizontal expansion joint and is used for adjusting the axial installation position of the horizontal expansion joint and bearing axial tension; the vertical axial thrust plate is positioned at the upper end of a copper sleeve (sliding bearing) of the bearing turntable and is used for limiting the upward axial position of the bearing turntable; the vertical packing seal is positioned at the joint of the vertical expansion joint of the tee joint and the body and is used for providing vertical seal.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the force born by the bearing rotary table is decomposed into a horizontal component and a vertical component, the horizontal component is transmitted to the circular column at the upper end of the body by the inner ring sliding bearing, the bearing rotary table cannot drive the vertical expansion joint at the lower end of the three-way joint to generate transverse displacement under the action of the horizontal component, and the vertical packing is not influenced by a transverse external force all the time during the sealing work, so that the sealing work is reliable. The vertical component force is transmitted to the roller track on the upper end surface of the body through the rollers, the rollers roll on the plane, under the condition of normal machining precision, the rotation center error of a plurality of groups of rollers can be not considered, the stable operation can still be ensured, and the rollers are uniformly stressed.
(2) The horizontal telescopic joint is provided with an axial limiting thrust ring, when the Y-shaped rocker arm is opened towards two sides under the action of working water pressure, the thrust rings of the two symmetrical horizontal telescopic joints are limited by the end faces of the two symmetrical rocker arm supports, and the rocker arm supports transmit force to sealing seat flanges at two ends of the three-way joint through 2 groups of stud pull rods, so that the Y-shaped rocker arm cannot be opened towards two sides normally, and the horizontal packing seal is free from radial external force, thereby ensuring the reliability of sealing.
(3) Simple structure, reasonable stress, flexible rotation and reliable sealing.
Drawings
Fig. 1 is a schematic view of a side view working principle of the detachable joint of the pontoon water intaking rocker arm with a decomposed force provided by the utility model.
Fig. 2 is a schematic view of the main view structure of the detachable joint of the pontoon water-fetching rocker arm provided by the utility model.
Fig. 3 is a schematic view of the overlooking structure of the detachable joint of the pontoon water intaking rocker arm according to the present invention.
Fig. 4 is a partial enlarged structural diagram of a part a in the detachable joint of the water intake rocker arm of the pontoon with the decomposed force provided by the utility model.
Fig. 5 is a partial enlarged structural view of the part b of the detachable joint of the water intake rocker arm of the pontoon according to the present invention.
Description of reference numerals: 1. a body; 2. a roller assembly; 3. a load bearing turntable; 4. a rocker arm; 5. a horizontal stud pull rod; 6. a three-way joint; 7. sealing by horizontal packing; 8. a horizontal expansion joint; 9. a rocker arm support frame; 10. a vertical axial thrust plate; 11. and (5) sealing by vertical packing.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments, which are only used for explaining the present invention, but not for limiting the present invention.
As shown in fig. 1-5, the utility model discloses a loose joint of atress decomposition formula wharf boat water intaking rocking arm, including body 1, wheel components 2, bear carousel 3, rocking arm 4, three way connection 6, horizontal telescopic joint 8, rocker arm support frame 9, body 1 is on wharf boat base or bank base buttress base at during operation fixed mounting, and 2 equipartitions of multiunit wheel components are connected in the lower terminal surface that bears carousel 3, and two rocker arm support frame 9 symmetric connection are in the up end that bears carousel 3, and rocking arm 4, horizontal telescopic joint 8, three way connection 6 link into an integrated entity and support on rocker arm support frame 9 through horizontal telescopic joint 8, and rocking arm 4 drives horizontal telescopic joint 8 and can do the vertical direction and rotate from top to bottom around horizontal telescopic joint 8 axis in rocker arm support frame 9's supporting hole, also can wind body 1 upper end ring post center horizontal rotation.
Specifically, the inner ring of bearing carousel 3 is equipped with fixed connection's copper alloy slide bearing, and body 1 up end is equipped with a ring post, and the slide bearing cover that bears carousel 3 is on the ring post of body 1 upper end, and wheel components 2 support above-mentioned rocking arm 4, horizontal telescopic joint 8, three way connection 6, rocking arm support frame 9, bear carousel 3 on body 1 up end plane track, and the duplex winding body 1 upper end ring post center horizontal rotation.
Specifically, the circular column on the upper end surface of the body 1 and the vertical telescopic joint of the three-way joint 6 are located on the same axis.
Specifically, the rocker arm 4 is connected with the horizontal telescopic joint 8 through a flange.
Specifically, the device also comprises a horizontal stud pull rod 5, a horizontal packing seal 7, a vertical axial thrust pressure plate 10 and a vertical packing seal 11; the horizontal packing seals 7 are positioned at the two horizontal ends of the three-way joint 6, and the telescopic ends of the horizontal telescopic joints 8 are inserted into the horizontal packing seals 7 at the two ends of the three-way joint 6 and axially telescopic; the horizontal stud pull rod 5 is positioned at the outer circumferential position of the horizontal expansion joint 8 and is used for adjusting the axial installation position of the horizontal expansion joint and bearing axial tension; the vertical axial thrust plate 10 is positioned at the upper end of a copper sleeve (sliding bearing) of the bearing turntable 3 and is used for limiting the upward axial position of the bearing turntable; the vertical packing seal 11 is positioned at the joint of the vertical expansion joint of the three-way joint 6 and the body 1 and is used for providing vertical seal.
Examples
A stress-decomposed pontoon water-fetching rocker arm loose joint comprises a body 1, a roller component 2, a bearing rotary table 3, a rocker arm 4, a horizontal stud pull rod 5, a three-way joint 6, a horizontal filler seal 7, a horizontal telescopic joint 8, a rocker arm support frame 9, a vertical axial thrust pressure plate 10 and a vertical filler seal 11; body 1 is on wharf boat base or bank base buttress base at during operation fixed mounting, 2 equipartitions of multiunit wheel components are connected in the lower terminal surface that bears carousel 3, two rocker arm support frame 9 symmetric connection are in the up end that bears carousel 3, rocker arm 4 passes through flange joint with left and right sides horizontal telescopic joint 8, the horizontal packing that the flexible end of horizontal telescopic joint 8 inserted three way connection 6 both ends is sealed 7 and can the axial is flexible, rocker arm 4, horizontal telescopic joint 8, three way connection 6 is whole to be supported on rocker arm support frame 9 through horizontal telescopic joint 8, rocker arm 4 drives horizontal telescopic joint 8 and can do the vertical direction and rotate from top to bottom around the axial lead of horizontal telescopic joint 8 in the holding hole of rocker arm support frame 9, also can wind 1 upper end circular column center horizontal rotation of body. The inner ring of the bearing rotary table 3 is provided with a fixedly connected copper alloy sliding bearing, the upper end face of the body 1 is provided with a circular column, the circular column and a vertical telescopic joint of the three-way joint 6 are positioned at the same axial lead, the sliding bearing sleeve of the bearing rotary table 3 is sleeved on the circular column at the upper end of the body 1, and the roller supports the rocker arm 4, the horizontal telescopic joint 8, the three-way joint 6, the rocker arm support frame 9 and the bearing rotary table 3 on a plane track of the upper end face of the body 1 and can rotate horizontally around the center of the circular column at the upper end of the body 1.
The force born by the bearing rotary table 3 is decomposed into a horizontal component force and a vertical component force, the horizontal component force is transmitted to the circular column at the upper end of the body 1 by the inner ring sliding bearing, the bearing rotary table 3 cannot drive the vertical expansion joint at the lower end of the three-way joint 6 to generate transverse displacement under the action of the horizontal component force, and the vertical packing seal 11 is not influenced by a transverse external force all the time when working, so that the sealing work is reliable. The vertical component force is transmitted to the roller track on the upper end surface of the body 1 through the rollers, the rollers roll on the plane, under the condition of normal machining precision, the rotation center error of a plurality of groups of rollers can be not considered, the stable operation can still be ensured, and the rollers are uniformly stressed.
Be equipped with an axial spacing thrust collar on horizontal telescopic joint 8, when Y type rocking arm 4 opened to both sides under the effect of operating water pressure, the thrust collar of two horizontal telescopic joints 8 of symmetry receives two rocking arm support frames 9 terminal surfaces spacing, rocking arm support frame 9 transmits power for the seal receptacle flange at three way connection 6 both ends through 2 horizontal double-screw bolt pull rods 5 of group for Y shape rocking arm 4 can't open to both sides, and horizontal packing seal 7 does not receive radial external force from this, thereby ensures sealed reliable.
The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, and improvements made within the spirit and principle scope of the present invention should be included within the protection scope of the present invention.
Claims (5)
1. The utility model provides a detachable joint of atress decomposition formula wharf boat water intaking rocking arm, includes body (1), wheel components (2), bears carousel (3), rocking arm (4), three way connection (6), horizontal expansion festival (8), rocker arm support frame (9), its characterized in that: body (1) is at during operation fixed mounting on wharf boat base or bank base buttress base, multiunit wheel components (2) equipartition is connected in the lower terminal surface that bears carousel (3), two rocker arm support frames (9) symmetric connection are in the up end that bears carousel (3), rocking arm (4), horizontal telescopic joint (8), three way connection (6) link into an integrated entity and support on rocker arm support frame (9) through horizontal telescopic joint (8), rocking arm (4) drive horizontal telescopic joint (8) can be around horizontal telescopic joint (8) axis to be vertical direction rotation from top to bottom in the holding hole of rocker arm support frame (9), also can be around body (1) upper end ring post center horizontal rotation.
2. The detachable joint of rocker arm for receiving water from pontoon according to claim 1, wherein: the inner ring that bears carousel (3) is equipped with fixed connection's copper alloy slide bearing, and body (1) up end is equipped with a ring post, and the slide bearing cover that bears carousel (3) is on the ring post of body (1) upper end, and wheel components (2) support above-mentioned rocking arm (4), horizontal telescopic joint (8), three way connection (6), rocking arm support frame (9), bear carousel (3) on body (1) up end plane track, and the duplex winding body (1) upper end ring post center horizontal rotation.
3. The detachable joint of rocker arm for receiving water from pontoon according to claim 2, wherein: the circular column on the upper end surface of the body (1) and the vertical telescopic joint of the three-way joint (6) are positioned at the same axial lead.
4. The detachable joint of rocker arm for receiving water from pontoon according to claim 1, wherein: the rocker arm (4) is connected with the horizontal telescopic joint (8) through a flange.
5. The detachable joint of rocker arm for receiving water from pontoon according to any of claims 1-4, wherein: the device also comprises a horizontal stud pull rod (5), a horizontal packing seal (7), a vertical axial thrust plate (10) and a vertical packing seal (11); the horizontal packing seals (7) are positioned at the two horizontal ends of the three-way joint (6), and the telescopic ends of the horizontal telescopic joints (8) are inserted into the horizontal packing seals (7) at the two ends of the three-way joint (6) and axially telescopic; the horizontal stud pull rod (5) is positioned at the outer flange position of the horizontal expansion joint (8) and is used for adjusting the axial installation position of the horizontal expansion joint and bearing axial tension; the vertical axial thrust plate (10) is positioned at the upper end of the copper sleeve of the bearing turntable (3) and is used for limiting the upward axial position of the bearing turntable (3); the vertical packing seal (11) is positioned at the joint of the vertical expansion joint of the three-way joint (6) and the body (1) and is used for providing vertical seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921805938.5U CN211076250U (en) | 2019-10-25 | 2019-10-25 | Force-decomposing pontoon water-taking rocker arm loose joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921805938.5U CN211076250U (en) | 2019-10-25 | 2019-10-25 | Force-decomposing pontoon water-taking rocker arm loose joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211076250U true CN211076250U (en) | 2020-07-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921805938.5U Active CN211076250U (en) | 2019-10-25 | 2019-10-25 | Force-decomposing pontoon water-taking rocker arm loose joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211076250U (en) |
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2019
- 2019-10-25 CN CN201921805938.5U patent/CN211076250U/en active Active
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Effective date of registration: 20200924 Address after: 410007 room 2811 of the flood control building in the 370 Provincial Water Conservancy Department of Shaoshan North Road, Changsha City, Hunan Patentee after: HUNAN BESTALL WATER CONSERVANCY CONSTRUCTION Co.,Ltd. Patentee after: Wuhan Santong Shipbuilding Technology Engineering Co., Ltd Patentee after: WUHAN XINGDA MACHINES AND ELECTRONICS EQUIPMENT Co.,Ltd. Address before: 430090 18 roofs in area C, Huading Industrial Park, Hannan District, Wuhan City, Hubei Province Patentee before: WUHAN XINGDA MACHINES AND ELECTRONICS EQUIPMENT Co.,Ltd. |