Telescopic machine lifting limiting mechanism
By designing a vertically telescopic limit part and a lifting and lowering mechanism connecting the beam between the fuselage and the base of the telescopic machine, the problem of limit failure and left and right shaking during high-angle lifting of the telescopic machine is solved, and the effective limit for the fuselage to shake left and right is achieved without being affected by the lifting angle.
Patent Information
- Application Number
- CN202420801490.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-17
- Publication Date
- 2025-04-25
- Estimated Expiration
- 2034-04-17
AI Technical Summary
The limiting square pipe of existing telescopic machines may fail when lifting at large angles, resulting in left and right shaking problems, and the limiting effect is limited by the lifting angle.
A lifting limiting mechanism is designed, located between the fuselage and the base of the telescopic machine, including two limiting parts arranged along the width direction of the fuselage and can be vertically telescopic. It is fixedly connected by connecting beams to ensure that the upper and lower ends of the limiting part are pivotally connected to the fuselage and the base respectively.
This design effectively suppresses left and right shaking during the lifting process of the telescopic machine, and is not limited by the lifting angle, ensuring the sustainability of the limiting effect.
Smart Images
Figure CN222794480U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of telescopic machines, in particular to a lifting and limiting mechanism of a telescopic machine. Background Art
[0002] A telescopic conveyor is a conveyor with a retractable conveying section added to an ordinary conveyor, so that the conveyor can freely extend and retract in the length direction and the length of the telescopic conveyor can be controlled at any time. Usually, limit square tubes are set on both sides of the telescopic conveyor to prevent the telescopic conveyor from swaying left and right during the lifting process. In order to reduce the lifting resistance, a gap will be left between the limit square tube and the telescopic conveyor. At this time, the telescopic conveyor can have a certain amount of left and right swing. In addition, in order to ensure the normal transportation of goods, the height of the limit square tube generally shall not exceed the height of the conveying surface. This means that the limit square tube can only play a limiting role when the telescopic conveyor is lifted at a small angle, and there may be a risk of limit failure when the telescopic conveyor is lifted at a large angle. Utility Model Content
[0003] In order to overcome the above shortcomings, the purpose of the utility model is to provide a telescopic machine lifting limit mechanism, which is not limited by the lifting angle of the telescopic machine and can effectively suppress the left and right shaking of the telescopic machine during the lifting process.
[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is: a telescopic machine lifting and limiting mechanism, which is located on the telescopic machine. The telescopic machine includes a base and a fuselage, one end of the fuselage is pivoted to the base, and the other end can be lifted and moved under the action of the lifting mechanism. The lifting and limiting mechanism is arranged between the fuselage and the base, and includes two limiting parts arranged along the width direction of the fuselage and can be extended and retracted vertically. The upper and lower ends of each limiting part are respectively pivoted to the fuselage and the base, and the two limiting parts are fixedly connected by a connecting beam.
[0005] The beneficial effects of the lifting and limiting mechanism of the utility model are:
[0006] The lifting limit mechanism is arranged between the fuselage and the base, and the vertical extension and contraction of the limit part ensures the smooth lifting and moving of the fuselage; the upper and lower ends of the limit part are pivotally connected to the fuselage and the base respectively, so as to utilize the structural stability of the base to suppress the left and right shaking of the fuselage during the lifting and contraction process; and the two limit parts are fixed by a connecting beam, so as to ensure the stability of the distance between the two limit parts, and further enhance the limiting effect on the shaking of the fuselage; because during the lifting and contraction of the fuselage, the upper end of the limit part is always connected to the fuselage, and the limit part can be vertically extended and contracted along with the lifting and contraction of the fuselage, therefore, the limit part will not be affected by the lifting angle of the telescopic machine, and can continuously maintain the limiting effect on the left and right shaking of the fuselage.
[0007] Furthermore, the position-limiting part includes an upper support rod and a lower support rod, the ends of the upper support rod and the lower support rod close to each other are pivotally connected through a connecting structure, and the ends of the upper support rod and the lower support rod far from each other are pivotally connected to the fuselage and the base respectively. And the upper support rod and the lower support rod of any position-limiting part are located on the same vertical plane.
[0008] When the fuselage swings downward, the upper support rod receives a downward driving force, and the upper support rod is immediately folded in the direction close to the lower support rod (i.e., the contraction action of the limiter); when the fuselage swings upward, the upper support rod receives an upward driving force, and the upper support rod is immediately expanded in the direction away from the lower support rod (i.e., the extension action of the limiter). The upper support rod and the lower support rod are pivotally connected to realize the vertical telescopic action of the limiter as a whole, so as to ensure the lifting and lowering movement of the fuselage; the upper support rod and the lower support rod of the limiter are limited to the same vertical plane, so that the upper support rod and the lower support rod can only receive the vertical driving force due to the lifting and lowering movement of the fuselage, thereby avoiding the influence of the left and right shaking of the fuselage caused by the inclination of the limiter itself.
[0009] Specifically, the connection structure includes a pivot plate, a pivot hole and an axle rod, wherein the pivot hole is arranged on the lower support rod along the width direction of the fuselage. The axle rod is inserted into the pivot hole, and the pivot plate is mounted thereon. The pivot plate is fixedly connected to the upper support rod. The rotation of the upper support rod relative to the lower support rod is achieved through the cooperation of the pivot plate, the pivot hole and the axle rod, so as to facilitate the vertical extension and retraction of the limiter.
[0010] Furthermore, two pivot plates are provided and fixedly connected to both sides of the upper support rod; and one end of the two pivot plates facing the lower support rod can respectively abut against both sides of the lower support rod. By coordinating the positions of the two pivot plates with the upper support rod and the lower support rod, it is possible to ensure that the upper support rod and the lower support rod are in the same vertical plane and to suppress the left-right displacement at the junction of the upper support rod and the lower support rod.
[0011] Furthermore, the shaft is arranged along the width direction of the fuselage, one end of which is inserted into the pivot hole of one of the limiting parts, and the other end is inserted into the pivot hole of the other limiting part. By connecting and cooperating with one shaft and two limiting parts, the distance between the two limiting parts can be limited, thereby avoiding the distance between the two limiting parts from changing.
[0012] Furthermore, the connecting beam is arranged near the junction of the upper support rod and the lower support rod, and includes a beam body arranged along the width direction of the fuselage. Both ends of the beam body are provided with mounting plates, and the two mounting plates are connected to the upper support rod one by one.
[0013] In the limiting part, since the ends of the upper support rod and the lower support rod that are away from each other are limited by the fuselage and the base respectively, the possibility of left and right shaking is low, but the ends of the upper support rod and the lower support rod that are close to each other lack a limit, and left and right shaking may occur during movement. Therefore, setting the connecting beam at the junction of the upper support rod and the lower support rod can effectively suppress the left and right shaking of the junction of the upper support rod and the lower support rod.
[0014] Furthermore, a lifting beam for connecting the lifting mechanism is provided at the bottom of the fuselage, and upper pivot seats corresponding to the limiting parts are arranged on the lifting beam, and the upper ends of the limiting parts are pivotally connected in the corresponding upper pivot seats.
[0015] Furthermore, the base is provided with lower pivot seats corresponding to the limiting parts one by one, and the lower ends of the limiting parts are pivotally connected in the corresponding lower pivot seats.
[0016] Furthermore, a walking wheel is installed at the lower end of the base. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 This is a schematic diagram of the structure of the telescopic machine according to an embodiment of the utility model;
[0018] Figure 2 This is a structural schematic diagram of the lifting and limiting mechanism of an embodiment of the utility model;
[0019] Figure 3 It is a structural schematic diagram of the pivotal connection between the lifting and limiting mechanism and the base and the body of the utility model.
[0020] In the figure:
[0021] 1-base; 11-lower pivot seat; 12-travel wheel;
[0022] 2-fuselage; 21-lifting beam; 22-upper pivot seat;
[0023] 3-Lifting mechanism;
[0024] 4-connecting beam; 41-beam body; 42-mounting plate;
[0025] 51-upper support rod; 52-lower support rod; 53-pivot plate; 54-axial rod. DETAILED DESCRIPTION
[0026] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0027] Example
[0028] See attached Figure 1-2 As shown, a telescopic machine lifting and limiting mechanism of the utility model is located on the telescopic machine. The telescopic machine includes a base 1 and a body 2. One end of the body 2 is pivotally connected to the base 1, and the other end can be lifted and moved under the action of a lifting mechanism 3. The lifting and limiting mechanism is arranged between the body 2 and the base 1, and includes two limiting parts arranged along the width direction of the body 2 and can be extended and retracted vertically. The upper and lower ends of each limiting part are pivotally connected to the body 2 and the base 1 respectively, and the two limiting parts are fixedly connected by a connecting beam 4.
[0029] In this embodiment, the upper and lower ends of the limiting part are pivotally connected to the fuselage 2 and the base 1 respectively, so as to utilize the structural stability of the base 1 to suppress the left and right shaking of the fuselage 2 during the lifting and lowering process; and the two limiting parts are fixed by the connecting beam 4, which can ensure the stability of the distance between the two limiting parts, and further enhance its limiting effect on the shaking of the fuselage; because during the lifting and lowering process of the fuselage 2, the upper end of the limiting part is always connected to the fuselage 2, and the limiting part can be vertically extended and retracted along with the lifting and lowering of the fuselage 2, therefore, the limiting part can be unaffected by the lifting angle of the telescopic machine, and the limiting effect on the left and right shaking of the fuselage can be continuously maintained.
[0030] In some embodiments, see Appendix Figure 2 As shown, the position-limiting part includes an upper support rod 51 and a lower support rod 52. The ends of the upper support rod 51 and the lower support rod 52 that are close to each other are pivotally connected through a connecting structure, and the ends of the upper support rod 51 and the lower support rod 52 that are far away from each other are pivotally connected to the fuselage 2 and the base 1 respectively. The upper support rod 51 and the lower support rod 52 of any position-limiting part are located on the same vertical plane.
[0031] When the fuselage 2 swings downward under the action of the lifting mechanism 3, the upper support rod 51 is driven downward, and the upper support rod 51 is folded toward the lower support rod 52 (i.e., the contraction action of the limiter); when the fuselage 2 swings upward, the upper support rod 51 is driven upward, and the upper support rod 51 is expanded toward the direction away from the lower support rod 52 (i.e., the extension action of the limiter). The upper support rod 51 and the lower support rod 52 are pivotally connected to realize the vertical telescopic action of the limiter as a whole, so as to ensure the lifting and lowering movement of the fuselage 2; the upper support rod 51 and the lower support rod 52 of the limiter are limited to the same vertical plane, so that the upper support rod 51 and the lower support rod 52 can only receive the vertical driving force due to the lifting and lowering movement of the fuselage 2, thereby avoiding the influence of the left and right shaking of the fuselage 2 caused by the inclination of the limiter itself.
[0032] Specifically, the connection structure includes a pivot plate 53, a pivot hole and a shaft 54, wherein the pivot hole is provided on the lower support rod 52 along the width direction of the fuselage 2. The shaft 54 is provided in the pivot hole, and a pivot plate 53 is mounted thereon. The pivot plate 53 is fixedly connected to the upper support rod 51. Furthermore, in order to avoid lateral movement (along the width direction of the fuselage) when the upper support rod 51 and the lower support rod 52 rotate relative to each other, two pivot plates 53 can be provided, and the two pivot plates 53 are respectively fixedly connected to the two sides of the upper support rod 51; and one end of the two pivot plates 53 facing the lower support rod 52 is respectively abutted on the two sides of the lower support rod 52. Such a setting can use the two pivot plates 53 to limit the two sides of the upper support rod 51 and the lower support rod 52, thereby avoiding lateral displacement of the upper support rod 51 and the lower support rod 52 at the intersection of the pivot position, and can ensure that the upper support rod 51 and the lower support rod 52 are in the same vertical plane.
[0033] In some embodiments, the shaft 54 is arranged along the width direction of the fuselage 2, one end of which is inserted into the pivot hole of one limiting part, and the other end is inserted into the pivot hole of the other limiting part. That is, the two limiting parts share one shaft 54. This arrangement can not only ensure the synchronous extension and contraction of the two limiting parts, but also enhance the stability of the spacing between the two limiting parts by using the shaft 54, so as to minimize the phenomenon of the fuselage 2 shaking left and right caused by the left and right shaking between the two limiting parts.
[0034] In the limiting part, since the ends of the upper support rod 51 and the lower support rod 52 that are far from each other are limited by the fuselage 2 and the base 1 respectively, the possibility of left and right shaking is low, but the ends of the upper support rod 51 and the lower support rod 52 that are close to each other lack limit, and left and right shaking may occur during the movement. Therefore, in some embodiments, the connecting beam 4 is arranged near the junction of the upper support rod 51 and the lower support rod 52, and it includes a beam body 41 arranged along the width direction of the fuselage, and both ends of the beam body 41 are provided with mounting plates 42, and the two mounting plates 42 are connected to the upper support rod 51 in a one-to-one correspondence. The connecting beam 4 is arranged at the junction of the upper support rod 51 and the lower support rod 52, which can effectively suppress the left and right shaking at the junction of the upper support rod 51 and the lower support rod 52.
[0035] In some embodiments, see Appendix Figure 3 As shown, a lifting beam 21 for connecting the lifting mechanism 3 is provided at the bottom of the fuselage 2, and an upper pivot seat 22 corresponding to the position-limiting part is arranged on the lifting beam 21, and the upper end of the position-limiting part is pivotally connected in the corresponding upper pivot seat 22. A lower pivot seat 11 corresponding to the position-limiting part is arranged on the base 1, and the lower end of the position-limiting part is pivotally connected in the corresponding lower pivot seat 11.
[0036] In some embodiments, a travel wheel 12 is installed at the lower end of the base 1 to facilitate the movement of the telescopic machine.
[0037] The above implementation modes are only for illustrating the technical concept and features of the utility model, and their purpose is to allow people familiar with this technology to understand the content of the utility model and implement it. It cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.
Claims
1. A telescopic machine lifting and limiting mechanism, located on the telescopic machine; the telescopic machine comprises a base and a fuselage, one end of the fuselage is pivotally connected to the base, and the other end can be lifted and moved under the action of the lifting mechanism; the characteristics are: The lifting limit mechanism is arranged between the fuselage and the base, and includes two limit parts arranged along the width direction of the fuselage and capable of vertical extension and retraction. The upper and lower ends of each limit part are pivotally connected to the fuselage and the base respectively, and the two limit parts are fixedly connected by a connecting beam.
2. The telescopic machine lifting and limiting mechanism according to claim 1 is characterized in that: The limiting part includes an upper support rod and a lower support rod, the ends of the upper support rod and the lower support rod that are close to each other are pivotally connected through a connecting structure, and the ends of the upper support rod and the lower support rod that are away from each other are pivotally connected to the fuselage and the base respectively; and the upper support rod and the lower support rod of any of the limiting parts are located on the same vertical plane.
3. The telescopic machine lifting and limiting mechanism according to claim 2 is characterized in that: The connection structure includes a pivot plate, a pivot hole and an axle rod, wherein the pivot hole is arranged on the lower support rod along the width direction of the fuselage; the axle rod is inserted into the pivot hole, and the pivot plate is mounted thereon; the pivot plate is fixedly connected to the upper support rod.
4. The telescopic machine lifting and limiting mechanism according to claim 3 is characterized in that: The two pivot plates are provided and are respectively fixedly connected to the two sides of the upper support rod; and one end of the two pivot plates facing the lower support rod can respectively abut against the two sides of the lower support rod.
5. The telescopic machine lifting and limiting mechanism according to claim 3 is characterized in that: The shaft rod is arranged along the width direction of the fuselage, one end of the shaft rod is inserted into the pivot hole of one of the limiting parts, and the other end is inserted into the pivot hole of the other limiting part.
6. The telescopic machine lifting and limiting mechanism according to any one of claims 2 to 5, characterized in that: The connecting beam is arranged near the junction of the upper support rod and the lower support rod, and comprises a beam body arranged along the width direction of the fuselage. Both ends of the beam body are provided with mounting plates, and the two mounting plates are connected to the upper support rod in a one-to-one correspondence.
7. The telescopic machine lifting and limiting mechanism according to claim 1 is characterized in that: A lifting beam for connecting the lifting mechanism is arranged at the bottom of the fuselage, and upper pivot seats corresponding to the limiting parts are arranged on the lifting beam, and the upper ends of the limiting parts are pivotally connected in the corresponding upper pivot seats.
8. The telescopic machine lifting and limiting mechanism according to claim 1, characterized in that: The base is provided with lower pivot seats corresponding to the limiting parts one by one, and the lower ends of the limiting parts are pivotally connected in the corresponding lower pivot seats.
9. The telescopic machine lifting and limiting mechanism according to claim 1, characterized in that: Travel wheels are installed at the lower end of the base.