CN202023510U - Prism cardan shaft - Google Patents
Prism cardan shaft Download PDFInfo
- Publication number
- CN202023510U CN202023510U CN2011200809821U CN201120080982U CN202023510U CN 202023510 U CN202023510 U CN 202023510U CN 2011200809821 U CN2011200809821 U CN 2011200809821U CN 201120080982 U CN201120080982 U CN 201120080982U CN 202023510 U CN202023510 U CN 202023510U
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- CN
- China
- Prior art keywords
- jackshaft
- many
- connection chamber
- drive shaft
- faceted pebbles
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a prism cardan shaft, which comprises a screw joint and an intermediate shaft. An intermediate shaft connecting cavity is arranged on the screw joint, the head of the intermediate shaft is inserted into the intermediate shaft connecting cavity, and a supporting gap is arranged between the intermediate shaft connecting cavity and the head of the intermediate shaft. A supporting ball is arranged inside the supporting gap, and the head of the intermediate shaft is a prism. An inner cavity wall of the intermediate shaft connecting cavity is provided with inner prism faces which are in clearance fit with outer prism faces of the prism. A dropping-proof device and a sealing device are arranged between the intermediate shaft and the intermediate shaft connecting cavity. Contacting areas between the inner prism faces and the outer prism faces are big, thereby being strong in press-resisting capacity and big in transmitted torsion, and prolonging service life.
Description
Technical field
The utility model relates to a kind of universal drive shaft in drilling equipment field.
Background technology
Helicoid hydraulic motor comprises by-pass valve assembly, motor assembly, universal drive shaft assembly and driving-shaft assembly.The universal drive shaft assembly comprises jackshaft, described jackshaft two ends are connected with wire connection head and following wire connection head respectively, the described wire connection head of going up connects motor rotor, described wire connection head down connects power transmission shaft, the effect of universal drive shaft assembly is that the dead axle that the planetary motion that motor rotor is exported is converted into to power transmission shaft is rotated, and transfer torque, are directly connected to the life-span of helicoid hydraulic motor complete machine in its structural performance and application life.
The universal drive shaft primary structure of helicoid hydraulic motor has petal type, spherical tooth type and titanium alloy universal drive shaft at present.The petal type universal drive shaft is mainly used in the helicoid hydraulic motor of fixed bend corner structure, and spherical tooth type universal axle and titanium alloy universal drive shaft are mainly used in the helicoid hydraulic motor of adjustable bent angle structure.
The petal type universal drive shaft is subjected to its structure and process limitation, and application life is generally not long.Spherical tooth type universal axle construction is more reasonable, but the groove contact surface in tooth ball and jackshaft ball-and-socket and the wire connection head dummy chamber is little, anti-extrusion scarce capacity, and ball-and-socket and groove are easy to worn out, cause universal drive shaft initial failure, and the life-span is also not very long.The titanium alloy universal drive shaft is to rely on the good characteristics of titanium alloy specific strength high-flexibility to realize universal translation function, although application life is longer, costs an arm and a leg, and all concentrates on state-run military enterprise, and supply is unstable, the buying difficulty; Titanium alloy heat treatment requirements complexity is handled initial failure is not with great difficulty taken place, and very fast fracture is lost more than gain enterprise, and is very risky.
The utility model content
Technical problem to be solved in the utility model provides that a kind of transfer torque is big, the rib tooth universal drive shaft of long service life.
For solving the problems of the technologies described above, the technical solution of the utility model is: rib tooth universal drive shaft, comprise wire connection head and jackshaft, described wire connection head is provided with the jackshaft connection chamber, the head of described jackshaft inserts in the described jackshaft connection chamber, be provided with between described jackshaft connection chamber and the described jackshaft head end and support the gap, described support is provided with fulcrum ball in the gap, the head of described jackshaft is a multiple edge body, the internal chamber wall of described jackshaft connection chamber is provided with the interior many faceted pebbles with outer many faceted pebbles matched in clearance of described multiple edge body, is provided with anti-drop device and sealing device between described jackshaft and the described jackshaft connection chamber.
As optimized technical scheme, described outer many faceted pebbles of described multiple edge body are set with many ribs external bushing, and described interior many faceted pebbles of described jackshaft connection chamber are provided with many ribs neck bush.
As optimized technical scheme, described interior many faceted pebbles and described outer many faceted pebbles comprise at least three faceted pebbles, and described many ribs neck bush and described many ribs external bushing comprise at least three faceted pebbles.
As optimized technical scheme, rounding off between the adjacent faceted pebble of described many ribs external bushing and described many ribs neck bush, rounding off between the adjacent faceted pebble of described interior many faceted pebbles and described outer many faceted pebbles.
As optimized technical scheme, described anti-drop device comprises the anticreep projection that is located at described jackshaft neck, is installed with the anti-decylization that cooperates with described anticreep projection in the described jackshaft connection chamber.
As optimized technical scheme, described sealing device comprises the sealing ring that is located between described anticreep projection and the described jackshaft connection chamber inwall.
As optimized technical scheme, described sealing device also comprises sealing shroud, and an end of described sealing shroud is sleeved on the described jackshaft, and the other end of described sealing shroud is sleeved on the pressure cap, and described pressure cap compresses the outer end that is installed in described jackshaft connection chamber.
As optimized technical scheme, described anti-decylization is fixedly mounted on described pressure cap inwall.
As optimized technical scheme, the end face of described jackshaft is provided with fulcrum ball cavity is installed, described fulcrum ball is installed and is provided with seat in the fulcrum ball installation in the cavity, described jackshaft connection chamber is provided with described fulcrum ball interior the outer seat of corresponding fulcrum ball installation is installed, and described fulcrum ball is located at interior of described fulcrum ball installation and described fulcrum ball is installed between outer.
Owing to adopted technique scheme, rib tooth universal drive shaft, comprise wire connection head and jackshaft, described wire connection head is provided with the jackshaft connection chamber, the head of described jackshaft inserts in the described jackshaft connection chamber, be provided with between described jackshaft connection chamber and the described jackshaft head end and support the gap, described support is provided with fulcrum ball in the gap, the head of described jackshaft is a multiple edge body, the internal chamber wall of described jackshaft connection chamber is provided with the interior many faceted pebbles with outer many faceted pebbles matched in clearance of described multiple edge body, is provided with anti-drop device and sealing device between described jackshaft and the described jackshaft connection chamber; The head of described jackshaft is a multiple edge body, the internal chamber wall of described jackshaft connection chamber is provided with the interior many faceted pebbles with outer many faceted pebbles matched in clearance of described multiple edge body, and interior many faceted pebbles and outer many faceted pebbles contact area are big, and anti-extrusion ability is strong, transfer torque is big, and prolong application life greatly.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is that A-A among Fig. 1 is to view;
Fig. 3 is the structural representation of the utility model embodiment two;
Among the figure: 1-wire connection head; 11-jackshaft connection chamber; Many faceted pebbles in the 12-; Many ribs of 13-neck bush; 14-prevents decylization; The 2-jackshaft; The outer many faceted pebbles of 21-; Many ribs of 22-external bushing; 23-anticreep projection; The 24-fulcrum ball is installed cavity; Seat in the 25-fulcrum ball is installed; The 26-fulcrum ball is installed outer seat; 3-supports the gap; The 4-fulcrum ball; The 5-sealing ring; The 6-sealing shroud; The 7-pressure cap.
The specific embodiment
Embodiment one: as depicted in figs. 1 and 2, rib tooth universal drive shaft, comprise wire connection 1 and jackshaft 2, described wire connection 1 is provided with jackshaft connection chamber 11, the head of described jackshaft 2 inserts in the described jackshaft connection chamber, be provided with between described jackshaft connection chamber 11 and described jackshaft 2 head end and support gap 3, be provided with fulcrum ball 4 in the described support gap 3, the head of described jackshaft 2 is a multiple edge body, the internal chamber wall of described jackshaft connection chamber 11 is provided with the interior many faceted pebbles 12 with outer many faceted pebble 21 matched in clearance of described multiple edge body, is provided with anti-drop device and sealing device between described jackshaft 2 and the described jackshaft connection chamber 11; Described outer many faceted pebbles 21 of described multiple edge body are set with many ribs external bushing 22, described interior many faceted pebbles 12 of described jackshaft connection chamber 11 are provided with many ribs neck bush 13, many faceted pebbles 12 and described outer many faceted pebbles 21 comprise six faceted pebbles in described, described many ribs neck bush 13 and described many ribs external bushing 22 comprise six faceted pebbles, rounding off between the adjacent faceted pebble of described many ribs external bushing 22 and described many ribs neck bush 13, rounding off between the adjacent faceted pebble of described interior many faceted pebbles 12 and described outer many faceted pebbles 21; Described anti-drop device comprises the anticreep projection 23 that is located at described jackshaft 2 necks, is installed with in the described jackshaft connection chamber 11 and the described anticreep projection 23 anti-decylizations 14 that cooperate; Described sealing device comprises the sealing ring 5 that is located between described anticreep projection 23 and described jackshaft connection chamber 11 inwalls, described sealing device also comprises sealing shroud 6, one end of described sealing shroud 6 is sleeved on the described jackshaft 2, the other end of described sealing shroud 6 is sleeved on the pressure cap 7, and described pressure cap 7 compresses the outer end that is installed in described jackshaft connection chamber 11; Described anti-decylization 14 is fixedly mounted on described pressure cap 7 inwalls; The end face of described jackshaft 2 is provided with fulcrum ball cavity 24 is installed, described fulcrum ball is installed and is provided with seat 25 in the fulcrum ball installation in the cavity 24, described jackshaft connection chamber 11 is provided with and described fulcrum ball install in the corresponding fulcrum ball of seat 25 outer seat 26 is installed, described fulcrum ball 4 be located at described fulcrum ball install in seat 25 and described fulcrum ball install between the outer seat 26.
Embodiment two: as shown in Figure 3, the basic identical difference of the structure of the structure of the utility model embodiment two and embodiment one is that described interior many faceted pebbles 12 and described outer many faceted pebbles 21 comprise five faceted pebbles, and described many ribs neck bush 13 and described many ribs external bushing 22 comprise five faceted pebbles.
The head of described jackshaft 2 is a multiple edge body, and outer many faceted pebble 21 matched in clearance of interior many faceted pebbles of the internal chamber wall of described jackshaft connection chamber 11 12 and described multiple edge body have guaranteed that wire connection 1 and jackshaft 2 are the pendulum angle of the 0-5 degree of center of rotation with the fulcrum ball.
The head of described jackshaft 2 is a multiple edge body, the internal chamber wall of described jackshaft connection chamber 11 is provided with the interior many faceted pebbles 12 with outer many faceted pebble 21 matched in clearance of described multiple edge body, and interior many faceted pebbles 12 are big with outer many faceted pebble 21 contacts area, and anti-extrusion ability is strong, transfer torque is big, and prolong application life greatly.
Sealing device comprises the sealing ring 5 that is located between described anticreep projection 23 and described jackshaft connection chamber 11 inwalls, described sealing ring 5 has formed primary seal, described sealing device also comprises sealing shroud 6, one end of described sealing shroud 6 is sleeved on the described jackshaft 2, the other end of described sealing shroud 6 is sleeved on the pressure cap 7, described pressure cap 7 compresses the outer end that is installed in described jackshaft connection chamber 11, described sealing shroud 6 has formed secondary seal, being provided with of primary seal and secondary seal strengthened sealing effectiveness, improved sealing reliability.
More than show and described basic principle of the present utility model, principal character and advantage of the present utility model.The utility model is not restricted to the described embodiments; that describes in the foregoing description and the manual just illustrates principle of the present utility model; under the prerequisite that does not break away from the utility model spirit and scope; the utility model also has various changes and modifications, and these changes and improvements all fall in claimed the utility model scope.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (9)
1. rib tooth universal drive shaft, comprise wire connection head and jackshaft, described wire connection head is provided with the jackshaft connection chamber, the head of described jackshaft inserts in the described jackshaft connection chamber, it is characterized in that, be provided with between described jackshaft connection chamber and the described jackshaft head end and support the gap, described support is provided with fulcrum ball in the gap, the head of described jackshaft is a multiple edge body, the internal chamber wall of described jackshaft connection chamber is provided with the interior many faceted pebbles with outer many faceted pebbles matched in clearance of described multiple edge body, is provided with anti-drop device and sealing device between described jackshaft and the described jackshaft connection chamber.
2. rib tooth universal drive shaft as claimed in claim 1 is characterized in that: described outer many faceted pebbles of described multiple edge body are set with many ribs external bushing, and described interior many faceted pebbles of described jackshaft connection chamber are provided with many ribs neck bush.
3. rib tooth universal drive shaft as claimed in claim 2 is characterized in that: many faceted pebbles and described outer many faceted pebbles comprise at least three faceted pebbles in described, and described many ribs neck bush and described many ribs external bushing comprise at least three faceted pebbles.
4. rib tooth universal drive shaft as claimed in claim 3 is characterized in that: rounding off between the adjacent faceted pebble of described many ribs external bushing and described many ribs neck bush, rounding off between the adjacent faceted pebble of described interior many faceted pebbles and described outer many faceted pebbles.
5. rib tooth universal drive shaft as claimed in claim 1 is characterized in that: described anti-drop device comprises the anticreep projection that is located at described jackshaft neck, is installed with the anti-decylization that cooperates with described anticreep projection in the described jackshaft connection chamber.
6. rib tooth universal drive shaft as claimed in claim 5 is characterized in that: described sealing device comprises the sealing ring that is located between described anticreep projection and the described jackshaft connection chamber inwall.
7. rib tooth universal drive shaft as claimed in claim 6, it is characterized in that: described sealing device also comprises sealing shroud, one end of described sealing shroud is sleeved on the described jackshaft, and the other end of described sealing shroud is sleeved on the pressure cap, and described pressure cap compresses the outer end that is installed in described jackshaft connection chamber.
8. rib tooth universal drive shaft as claimed in claim 7 is characterized in that: described anti-decylization is fixedly mounted on described pressure cap inwall.
9. rib tooth universal drive shaft as claimed in claim 1, it is characterized in that: the end face of described jackshaft is provided with fulcrum ball cavity is installed, described fulcrum ball is installed and is provided with seat in the fulcrum ball installation in the cavity, described jackshaft connection chamber is provided with described fulcrum ball interior the outer seat of corresponding fulcrum ball installation is installed, and described fulcrum ball is located at interior of described fulcrum ball installation and described fulcrum ball is installed between outer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200809821U CN202023510U (en) | 2011-03-20 | 2011-03-20 | Prism cardan shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200809821U CN202023510U (en) | 2011-03-20 | 2011-03-20 | Prism cardan shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202023510U true CN202023510U (en) | 2011-11-02 |
Family
ID=44848462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200809821U Expired - Fee Related CN202023510U (en) | 2011-03-20 | 2011-03-20 | Prism cardan shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202023510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191917A (en) * | 2011-03-20 | 2011-09-21 | 孙扬志 | Ridge tooth universal shaft |
-
2011
- 2011-03-20 CN CN2011200809821U patent/CN202023510U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191917A (en) * | 2011-03-20 | 2011-09-21 | 孙扬志 | Ridge tooth universal shaft |
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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: 20111102 Termination date: 20140320 |