CN217135999U - Length-adjustable lifting rod for agricultural machinery - Google Patents
Length-adjustable lifting rod for agricultural machinery Download PDFInfo
- Publication number
- CN217135999U CN217135999U CN202220527492.XU CN202220527492U CN217135999U CN 217135999 U CN217135999 U CN 217135999U CN 202220527492 U CN202220527492 U CN 202220527492U CN 217135999 U CN217135999 U CN 217135999U
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- fork
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- adjusting screw
- screw
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Abstract
The utility model discloses an agricultural machinery is with adjustable length lift bar, it belongs to linkage technical field, including adjusting screw, adjusting screw both ends screw thread installs respectively and adjusts fork and lower regulation fork, on adjust between fork and the lower regulation fork install the pressure spring that can freely remove in the adjusting screw, the pressure spring both ends respectively with on adjust the fork and adjust the fork butt down, be equipped with limit structure down between connection fork and the adjusting screw.
Description
Technical Field
The utility model relates to a linkage technical field, concretely relates to length-adjustable lifting bar for agricultural machinery.
Background
The suspension system is a general term for all force-transmitting connecting devices between a frame and an axle or a wheel of an automobile, and has the functions of transmitting force and moment acting between the wheel and the frame, buffering impact force transmitted to the frame or an automobile body from an uneven road surface and attenuating vibration caused by the impact force so as to ensure smooth running of the automobile. The suspension system should function to support the vehicle body and improve the ride, and different suspension arrangements will give the driver a different driving experience. The suspension system which looks like a simple appearance integrates various acting forces, determines the stability, comfort and safety of the automobile and is one of the key parts of the modern automobile.
Some current linkage lifting rod, the connection structure at its both ends is fixed through threaded connection more, such mode of setting up, when the structure produces torsion stress, can't stably eliminate to produce the damage to the structure easily, threaded connection simultaneously, when installing or dismantling, operate inconvenience very, linkage long-term use simultaneously, the vibration effect of production causes the wearing and tearing condition to the screw thread easily, thereby leads to the condition that the stability of structure butt joint descends easily.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model provides a pair of length-adjustable lifting rod for agricultural machinery utilizes the design of the portable sheath of lifting rod one end installation, both can avoid causing adjusting screw to rotate because of the vibration in the course of the work to lead to lifting rod length to change, can fix lifting rod one end again, realize the regulation of angle between upper regulation fork and the lower regulation fork through rotating the lifting rod other end, when the sheath separates with adjusting screw, can utilize adjusting screw's rotation to reach the purpose of adjustment lifting rod length.
In order to realize the purpose, the utility model adopts the technical scheme as follows:
the utility model provides an agricultural machinery is with adjustable lifting bar of length, includes adjusting screw, adjusting screw both ends screw thread installs respectively and goes up regulation fork and lower regulation fork, go up between regulation fork and the lower regulation fork install the pressure spring that can freely remove in the adjusting screw, the pressure spring both ends respectively with go up regulation fork and lower regulation fork butt, be equipped with limit structure between lower regulation fork and the adjusting screw.
Preferably, the two ends of the adjusting screw rod are provided with internal threads with the same thread pitch and opposite rotating directions, and the internal threads are matched with the upper adjusting fork and the lower adjusting fork respectively.
Preferably, the upper adjusting fork and the lower adjusting fork both comprise fork bodies, one ends of the fork bodies are fixedly provided with screw rods, and the screw rods are provided with external threads matched with the internal threads.
Preferably, the limiting structure comprises a square table located between the fork body and the screw rod, a sheath capable of moving along the axial direction of the screw rod is sleeved on the square table, and a guide plate matched with one end of the sheath is arranged on the adjusting screw rod.
Preferably, a permanent magnet for adsorbing the sheath is fixedly mounted at one end of the square platform close to the fork body and one end of the guide plate far away from the lower adjusting fork.
Preferably, two handrails are symmetrically arranged on the sheath.
The utility model has the advantages of that:
1. the utility model discloses in utilize two opposite rotation direction's internal thread to cooperate with upper adjustment fork, lower adjustment fork respectively, through rotating adjusting screw, can realize the simultaneous movement of upper adjustment fork and lower adjustment fork, can realize the regulation of lifter length, and can keep the relative stillness of upper adjustment fork and lower adjustment fork in the process of upper adjustment fork and lower adjustment fork simultaneous movement, be favorable to keeping the accuracy of upper adjustment fork and lower adjustment fork relative angle;
2. the utility model discloses in utilize the design of lift bar one end installation portable sheath, when the sheath contacts with adjusting screw, can accomplish adjusting screw's spacing, both can avoid causing adjusting screw to rotate and lead to the lift bar length to change in the course of the work because of the vibration, can fix one end of lift bar again, realize the regulation of angle between upper adjustment fork and the lower adjustment fork through rotating the lift bar other end, when the sheath separates with adjusting screw, can utilize adjusting screw's rotation to reach the purpose of adjusting lift bar length;
3. the utility model discloses in utilize on square platform and adjusting screw install with sheath matched with magnet, can both guarantee the stability when sheath and adjusting screw separate or contact, can also carry out the dismouting when overhauing the lifting bar, utilize magnet to adsorb the different parts of lifting bar, can avoid losing of part;
4. the utility model discloses in utilize the pressure spring of installation in the adjusting screw, utilize pressure spring to support and adjust fork and lower regulation fork, both can keep internal thread and external thread connection's stability, avoid causing internal thread or external screw thread to damage because of vibrations, can utilize the stress on pressure spring absorbs upper adjustment fork and the lower regulation fork again, avoid upper adjustment fork and lower regulation fork to cause the deformation because of stress concentration.
Drawings
FIG. 1 is a schematic view of the overall structure of a lifting rod with adjustable length for agricultural machinery of the present invention;
fig. 2 is the utility model discloses a cross-sectional view of adjustable length lifting bar for agricultural machinery.
In the figure: 1-adjusting screw, 2-fork body, 3-screw, 4-square table, 5-sheath, 6-guide plate, 7-permanent magnet, 8-handrail and 9-pressure spring.
Detailed Description
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
A length-adjustable lifting bar for agricultural machinery, as shown in fig. 1-2, comprises an adjusting screw 1, an upper adjusting fork and a lower adjusting fork are respectively arranged on the threads at the two ends of the adjusting screw rod 1, a pressure spring 9 which can move freely is arranged in the adjusting screw rod 1 between the upper adjusting fork and the lower adjusting fork, the two ends of the pressure spring 9 are respectively abutted against the upper adjusting fork and the lower adjusting fork, a limiting structure is arranged between the lower adjusting fork and the adjusting screw rod 1, the pressure spring 9 arranged in the adjusting screw rod 1 is utilized, and the pressure spring 9 is utilized to support the upper adjusting fork and the lower adjusting fork, so that the stability of connection between internal threads and external threads can be maintained, the damage of the internal threads or the external threads caused by vibration can be avoided, the pressure spring 9 can be utilized to absorb the stress on the upper adjusting fork and the lower adjusting fork, and the deformation of the upper adjusting fork and the lower adjusting fork caused by stress concentration can be avoided; wherein can select for use the pressure spring 9 of different length according to the length of stretching into of upper adjustment fork and lower adjustment fork in adjusting screw 1, avoid leading to the whole length adjustment difficulty of lifting rod because of pressure spring 9's the excessive compression volume.
The adjusting device is characterized in that internal threads with the same thread pitch and the same rotation direction and the opposite thread pitch are arranged at two ends of the adjusting screw rod 1, the internal threads are respectively matched with the upper adjusting fork and the lower adjusting fork, the internal threads with the two opposite rotation directions are respectively matched with the upper adjusting fork and the lower adjusting fork, the upper adjusting fork and the lower adjusting fork can move simultaneously by rotating the adjusting screw rod 1, the length of a lifting rod can be adjusted, the relative rest of the upper adjusting fork and the lower adjusting fork can be kept in the process that the upper adjusting fork and the lower adjusting fork move simultaneously, and the accuracy of the relative angle of the upper adjusting fork and the lower adjusting fork is kept.
The upper adjusting fork and the lower adjusting fork both comprise fork bodies 2, a screw rod 3 is fixedly mounted at one end of each fork body 2, and external threads matched with the internal threads are arranged on the screw rod 3.
Limit structure is including being located square platform 4 between the fork body 2 and the screw rod 3, the cover is equipped with on the square platform 4 and can follows the sheath 5 that 3 axial direction of screw rod removed, adjusting screw 1 be equipped with 5 one end matched with deflector 6 of sheath utilize the portable design of sheath 5, when sheath 5 and adjusting screw 1 contact, can accomplish adjusting screw 1 spacing, both can avoid causing adjusting screw 1 to rotate because of the vibration in the course of the work and lead to the lifter length to change, can fix lifter one end again, realize the regulation of adjusting the angle between fork and the lower adjustment fork through rotating the lifter other end, when sheath 5 and adjusting screw 1 separate, can utilize adjusting screw 1's rotation to reach the purpose of adjustment lifter length.
The square platform 4 is close to the one end of the fork body 2 with deflector 6 is kept away from the equal fixed mounting in lower adjustment fork one end has and is used for adsorbing permanent magnet 7 of sheath 5 utilizes installation and 5 matched with magnet of sheath on square platform 4 and adjusting screw 1, both can guarantee the stability when sheath 5 separates or contacts with adjusting screw 1, can carry out the dismouting to the lifter again and overhaul the time, utilizes magnet to adsorb the different parts of lifter, can avoid losing of part.
Two handrails 8 are symmetrically arranged on the sheath 5, the sheath 5 is convenient to move along the square table 4 by utilizing the handrails 8, and the sheath 5 and the adjusting screw rod 1 are both formed by processing square steel.
The foregoing is merely exemplary and illustrative of the structure of the invention, and various modifications, additions and substitutions as described in the detailed description may be made by those skilled in the art without departing from the structure or exceeding the scope of the invention as defined in the claims.
Claims (5)
1. The utility model provides an agricultural machinery is with adjustable length lifting bar, characterized by, includes adjusting screw, adjusting screw both ends screw thread installs respectively and goes up regulation fork and lower regulation fork, go up between regulation fork and the lower regulation fork install the pressure spring that can freely remove in the adjusting screw, the pressure spring both ends respectively with go up regulation fork and lower regulation fork butt, be equipped with limit structure between lower regulation fork and the adjusting screw.
2. The agricultural machine length-adjustable lifting rod as claimed in claim 1, wherein the adjusting screw has internal threads at both ends thereof, the internal threads having the same pitch and opposite rotation directions, and the internal threads are respectively engaged with the upper and lower adjusting forks.
3. The agricultural machinery lifting rod with adjustable length as claimed in claim 2, wherein the upper adjusting fork and the lower adjusting fork each comprise a fork body, a screw is fixedly mounted at one end of the fork body, and the screw is provided with an external thread matched with the internal thread.
4. The agricultural machinery lifting rod with adjustable length as claimed in claim 3, wherein the limiting structure comprises a square platform located between the fork body and the screw rod, a sheath capable of moving along the axial direction of the screw rod is sleeved on the square platform, and a guide plate matched with one end of the sheath is arranged on the adjusting screw rod.
5. The agricultural machinery lifting rod with adjustable length as claimed in claim 4, wherein a permanent magnet for adsorbing the sheath is fixedly mounted on both the end of the square platform close to the fork body and the end of the guide plate far away from the lower adjusting fork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220527492.XU CN217135999U (en) | 2022-03-11 | 2022-03-11 | Length-adjustable lifting rod for agricultural machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220527492.XU CN217135999U (en) | 2022-03-11 | 2022-03-11 | Length-adjustable lifting rod for agricultural machinery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217135999U true CN217135999U (en) | 2022-08-09 |
Family
ID=82692873
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220527492.XU Active CN217135999U (en) | 2022-03-11 | 2022-03-11 | Length-adjustable lifting rod for agricultural machinery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217135999U (en) |
-
2022
- 2022-03-11 CN CN202220527492.XU patent/CN217135999U/en active Active
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