CN217873139U - Assembly structure of S pipe valve transmission shaft of concrete pump - Google Patents
Assembly structure of S pipe valve transmission shaft of concrete pump Download PDFInfo
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- CN217873139U CN217873139U CN202221641184.6U CN202221641184U CN217873139U CN 217873139 U CN217873139 U CN 217873139U CN 202221641184 U CN202221641184 U CN 202221641184U CN 217873139 U CN217873139 U CN 217873139U
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- transmission shaft
- connecting seat
- boss
- concrete pump
- pipe valve
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Abstract
The utility model relates to an assembly structure of S pipe valve transmission shaft of concrete pump belongs to concrete pumping equipment technical field. The assembly structure of the concrete pump S pipe valve transmission shaft comprises an S pipe body and a transmission shaft, wherein the S pipe body comprises a feeding port end and a discharging port end, a connecting seat is arranged above the feeding port end of the S pipe body, a key groove is formed in the connecting seat, a boss is arranged at the end part of the transmission shaft, the boss at the end part of the transmission shaft is embedded in the key groove of the connecting seat, and the transmission shaft is fixed on the connecting seat. The utility model discloses a transmission shaft is fixed on the S body, can make transmission shaft and S body keep synchronous rotation to be connected through boss and keyway gomphosis, not only guaranteed the installation accuracy of transmission shaft, can also utilize boss and keyway to transmit mechanical torque, make the swing of S body more stable.
Description
Technical Field
The utility model relates to an assembly structure of S pipe valve transmission shaft of concrete pump belongs to concrete pumping equipment technical field.
Background
The S pipe valve in the concrete pump valve box has the function of driving the S pipe body to swing back and forth through the S pipe valve transmission shaft, so that a feed port of the S pipe body is respectively communicated with two concrete cylinders horizontally arranged in the concrete pump to pump or suck materials, and the positive pump or the reverse pump of the concrete pump is realized.
In the prior art, the transmission shaft of the S pipe valve of the concrete pump is welded on the S pipe body through two flange plates arranged on the S pipe body, and the S pipe valve has the following defects: (1) When the S-shaped pipe valve works, the transmission shaft of the S-shaped pipe valve needs to drive the S-shaped pipe body to swing back and forth in the distribution valve box, the welding part of the transmission shaft and the S-shaped pipe body of the S-shaped pipe valve cracks under the alternate action of repeated pulling force, pressure and shearing force, and the welding part of the S-shaped pipe valve also cracks due to corrosion and the like because the S-shaped pipe valve is soaked in concrete for a long time, so that the service life of the S-shaped pipe valve is directly influenced by the cracking of the welding part; (2) Make transmission shaft and S body become integrative structure through the welded mode, when certain part damages, need change whole S pipe valve, cost of maintenance is high.
SUMMERY OF THE UTILITY MODEL
The object of the present invention is to provide a new technical solution to improve or solve the technical problems existing in the prior art as described above.
The utility model provides a technical scheme as follows: the S pipe valve transmission shaft assembly structure of the concrete pump comprises an S pipe body and a transmission shaft, wherein the S pipe body comprises a feeding port end and a discharging port end, a connecting seat is arranged above the feeding port end of the S pipe body, a key groove is formed in the connecting seat, a boss is arranged at the end part of the transmission shaft, the boss at the end part of the transmission shaft is embedded in the key groove of the connecting seat, and the transmission shaft is fixed on the connecting seat.
Furthermore, the boss at the end part of the transmission shaft is a cross-shaped boss, and the key groove on the connecting seat is a cross-shaped key groove matched with the cross-shaped boss.
Furthermore, the number of the bosses at the end part of the transmission shaft is multiple, and the number of the key grooves on the connecting seat is matched with the number of the bosses at the end part of the transmission shaft.
Furthermore, the shape of the boss is cylindrical, square or polygonal, and the shape of the key groove on the connecting seat is matched with that of the boss.
Further, the transmission shaft is fixed on the connecting seat through a bolt.
Further, still include the reinforcing arm, the connecting seat with connect fixedly through the reinforcing arm between the S body.
Furthermore, the connecting seat, the S-shaped pipe body and the reinforcing arm are of an integrally formed structure.
Furthermore, the other end of the transmission shaft is a spline shaft.
Further, still be equipped with on the S body and scrape the flitch, scrape the flitch setting with one side that the connecting seat is relative.
The utility model has the advantages that:
1. the transmission shaft of the utility model is fixed on the S pipe body, so that the transmission shaft and the S pipe body can keep synchronous rotation, and the boss and the key groove are embedded and connected, thereby not only ensuring the installation precision of the transmission shaft, but also utilizing the boss and the key groove to transmit mechanical torque, and ensuring that the S pipe body swings more stably;
2. the utility model discloses a transmission shaft passes through the bolt fastening on the connecting seat of S body, therefore the transmission shaft can be followed the S body and dismantled, when S body or one of them part of transmission shaft damaged, can dismantle the part of damage alone and get off the change, practices thrift manufacturing cost.
3. The boss is a cross boss, the key groove is a cross key groove, the positioning structure embedded with the cross boss and the cross key groove is high in bearing capacity, and the cross boss and the cross key groove are easy to process.
4. Because the connecting surface of the connecting seat and the S pipe body is smaller, the load of the connecting surface of the connecting seat and the S pipe body can be reduced and the connecting strength of the connecting seat and the S pipe body is increased by connecting the reinforcing arm between the connecting seat and the S pipe body.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a left side view of fig. 1 of the present invention;
fig. 3 is a front view of the S-shaped tube of the present invention;
fig. 4 is a left side view of fig. 3 of the present invention;
fig. 5 is a front view of the drive shaft of the present invention;
fig. 6 is a right side view of fig. 5 of the present invention;
fig. 7 is a front view of a transmission shaft according to a second embodiment of the present invention;
fig. 8 is a right side view of fig. 7 of the present invention;
fig. 9 is a left side view of the S-shaped tube according to the second embodiment of the present invention;
in the drawings, 1, S tube body; 101. a feed inlet end; 102. a discharge port end; 2. a drive shaft; 201. an end plate; 202. a spline shaft; 3. a connecting seat; 401. a cross-shaped boss; 402. a cross-shaped key slot; 501. a cylindrical boss; 502. a circular keyway; 6. a reinforcing arm; 7. a scraping plate; 8. and (4) bolts.
Detailed Description
The principles and features of the present invention are described below in conjunction with the following examples, which are intended to illustrate the present invention and not to limit the scope of the present invention.
The first embodiment is as follows:
as shown in the figure, the assembly structure of the S pipe valve transmission shaft of the concrete pump comprises an S pipe body 1 and a transmission shaft 2, wherein the S pipe body 1 comprises a feeding port end 101 and a discharging port end 102, a connecting seat 3 is arranged above the feeding port end 101 of the S pipe body 1, a key groove is formed in the connecting seat 3, a boss is arranged at the end part of the transmission shaft 2, the boss at the end part of the transmission shaft 2 is embedded in the key groove of the connecting seat 3, and the transmission shaft 2 is fixed on the connecting seat 3.
In this embodiment, the boss is disposed at the end of the transmission shaft 2, and the key groove is installed in the connecting seat 3, but it is also possible to dispose the boss on the connecting seat 3 and the key groove on the end of the transmission shaft 2. In addition, the transmission shaft 2 is fixed on the S pipe body 1, and the transmission shaft 2 and the S pipe body 1 can keep synchronous rotation.
More specifically, the tip of transmission shaft 2 is equipped with end plate 201, the boss sets up on the end plate 201, in this embodiment, boss on the end plate 201 of transmission shaft 2 is cross boss 401, keyway on the connecting seat 3 be with the cross keyway 402 of cross boss 401 looks adaptation, during the installation, cross boss 401 gomphosis on the end plate 201 of transmission shaft 2 is in the cross keyway 402 of connecting seat 3, cross boss 401 and cross keyway 402 processing are simple to the location structure of cross boss 401 and the gomphosis of cross keyway 402 bears the ability reinforce of moment of torsion.
The transmission shaft 2 passes through the bolt 8 to be fixed on the connecting seat 3, and is more specific, as shown in fig. 1, the transmission shaft 2 and the connecting seat 3 are bolted together with a cap-shaped nut by using the bolt 8, in this embodiment, the bolt connecting holes on the connecting seat 3 and on the end plate 201 of the transmission shaft 2 are through holes instead of common counter bores and threaded holes, because the threaded holes are easily coagulated by the penetration of concrete slurry, the assembly and disassembly are troublesome, the counter bores are concentric holes with different sizes of the convex cross sections, the bolt big end is sunk in the big hole, so the gap between the bolt head and the hole can be filled with concrete slurry and coagulated, and the mode of through hole connection is adopted, and the bolt 8 is convenient to assemble and disassemble.
Because the connecting surface of the connecting seat 3 and the S pipe body 1 is smaller, in order to reduce the load of the combining surface of the connecting seat 3 and the S pipe body 1 and increase the connecting strength of the connecting seat 3 and the S pipe body 1, a reinforcing arm 6 is also connected between the connecting seat 3 and the S pipe body 1.
In this embodiment, the connecting seat 3, the S tube 1 and the reinforcing arm 6 are integrally formed, and the connecting seat 3, the S tube 1 and the reinforcing arm 6 can be integrally formed by casting. Of course, the connecting seat 3, the S-shaped pipe body 1 and the reinforcing arm 6 may be connected together by other connecting methods, such as welding or riveting.
The other end of the transmission shaft 2 is a spline shaft 202 connected with a transmission mechanism.
Still be equipped with on the S body 1 and scrape flitch 7, scrape flitch 7 set up with one side that connecting seat 3 is relative.
When the transmission shaft 2 is installed, firstly, the cross-shaped boss 401 on the end plate 201 of the transmission shaft 2 is aligned with the cross-shaped key groove 402 on the connecting seat 3 for installation, the cross-shaped boss 401 is embedded in the cross-shaped key groove 402, then, the bolt 8 penetrates through the through hole on the end plate 201 of the transmission shaft 2 and the through hole on the connecting seat 3 and then is bolted with the cap-shaped nut together, so that the transmission shaft 2 is fixed on the connecting seat 3, and the transmission shaft 2 is assembled.
The utility model discloses a mode that transmission shaft 2 and S body pass through cross boss 401 and cross keyway 402 gomphosis is connected, and transmission shaft 2 passes through bolt 8 to be fixed on connecting seat 3 of S body 1, the installation accuracy of transmission shaft 2 has not only been guaranteed, can also utilize boss and keyway to transmit mechanical torque, make the swing of S body 1 more stable, and transmission shaft 2 can be followed S body 1 and dismantled, when one of them part of S body 1 or transmission shaft 2 damaged, can dismantle the part that damages alone and get off the change, practice thrift manufacturing cost.
The second concrete embodiment:
different from the first specific embodiment, in the second specific embodiment, the boss at the end of the transmission shaft 2 is a cylindrical boss 501, the key slots on the connecting seat 3 are circular key slots 502, the number of the cylindrical bosses 501 is five, and five circular key slots 502 are provided on the connecting seat 3. Of course, the shape of the boss may also be square or polygonal, and the number of the boss and the key groove may be more or less, such as four, six or eight.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.
Claims (9)
1. The utility model provides an assembly structure of S pipe valve transmission shaft of concrete pump, includes S body (1) and transmission shaft (2), S body (1) is including feed inlet end (101) and discharge port end (102), its characterized in that, the top of feed inlet end (101) of S body (1) is equipped with connecting seat (3), be equipped with the keyway on connecting seat (3), the tip of transmission shaft (2) is equipped with the boss, the boss gomphosis of transmission shaft (2) tip is in the keyway of connecting seat (3), and transmission shaft (2) are fixed on connecting seat (3).
2. The assembling structure of the pipe valve transmission shaft of the concrete pump S according to claim 1, characterized in that the boss at the end part of the transmission shaft (2) is a cross-shaped boss (401), and the key groove on the connecting seat (3) is a cross-shaped key groove (402) matched with the cross-shaped boss (401).
3. The assembling structure of the pipe valve transmission shaft of the concrete pump S according to claim 1, characterized in that the number of the bosses at the end part of the transmission shaft (2) is multiple, and the number of the key grooves on the connecting seat (3) is matched with the number of the bosses at the end part of the transmission shaft (2).
4. The assembling structure of the pipe valve transmission shaft of the concrete pump S according to claim 3, characterized in that the boss is in the shape of a cylindrical, square or polygonal boss, and the shape of the key groove on the connecting seat (3) is matched with the shape of the boss.
5. The assembling structure of the concrete pump S pipe valve transmission shaft according to any one of claims 1 to 4, characterized in that the transmission shaft (2) is fixed on the connecting seat (3) through a bolt (8).
6. The assembling structure of the S pipe valve transmission shaft of the concrete pump according to claim 5, further comprising a reinforcing arm (6), wherein the connecting seat (3) and the S pipe body (1) are fixedly connected through the reinforcing arm (6).
7. The assembling structure of the S pipe valve transmission shaft of the concrete pump according to claim 6, wherein the connecting seat (3), the S pipe body (1) and the reinforcing arm (6) are of an integrally formed structure.
8. The assembling structure of the pipe valve transmission shaft of the concrete pump S according to claim 1, characterized in that the other end of the transmission shaft (2) is a spline shaft (202).
9. The assembling structure of the S pipe valve transmission shaft of the concrete pump according to claim 1, characterized in that a scraping plate (7) is further arranged on the S pipe body (1), and the scraping plate (7) is arranged on the side opposite to the connecting seat (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221641184.6U CN217873139U (en) | 2022-06-28 | 2022-06-28 | Assembly structure of S pipe valve transmission shaft of concrete pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221641184.6U CN217873139U (en) | 2022-06-28 | 2022-06-28 | Assembly structure of S pipe valve transmission shaft of concrete pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217873139U true CN217873139U (en) | 2022-11-22 |
Family
ID=84098453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221641184.6U Active CN217873139U (en) | 2022-06-28 | 2022-06-28 | Assembly structure of S pipe valve transmission shaft of concrete pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217873139U (en) |
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2022
- 2022-06-28 CN CN202221641184.6U patent/CN217873139U/en active Active
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