Vertical lifting mechanism and engineering vehicle

Abstract

The utility model discloses a vertical lifting mechanism and an engineering vehicle, and relates to the technical field of engineering machinery, the vertical lifting mechanism comprises a base, a carrier, a triangular seat, a first lower lifting arm, a first upper lifting arm, a first rocker, a lower limiting structure, an upper limiting structure and a first driving device, the first lower lifting arm is hinged with the base, and the other end of the first lower lifting arm is hinged with the triangular seat; one end of the first upper lifting arm is hinged to the carrier, and the other end of the first upper lifting arm is hinged to the triangular seat. One end of the first rocker is hinged to the base, and the other end of the first rocker is hinged to the middle of the first upper lifting arm. The lower limiting structure is hinged to the base and the triangular base so that the triangular base and the base can move in parallel. The upper limiting structure is hinged to the triangular base and the carrier so that the carrier and the triangular base can move in parallel. The first driving device is connected with the first lower lifting arm in a hinged mode, vertical lifting can be achieved, parallel movement can be kept, large loads and tipping torque can be borne, the structure is compact, and the occupied space is small.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a vertical lifting mechanism and an engineering vehicle. Background Technology

[0002] There are many common lifting mechanisms, such as telescopic direct lifting mechanisms, scissor lifting mechanisms, and ordinary parallel linkage lifting mechanisms. Direct lifting mechanisms have a simple structure, but because they need to ensure guiding capability, the structure requires some overlap, thus occupying a large space longitudinally. Scissor lifting mechanisms are multi-link mechanisms and cannot withstand large loads and overturning moments. Ordinary parallel linkage mechanisms can withstand large loads and overturning moments, but the lifting trajectory is an arc, resulting in large forward and backward displacements, which limits their application.

[0003] Therefore, there is an urgent need for a vertical lifting mechanism that can achieve vertical lifting, maintain parallel movement, withstand large loads and overturning moments, and has a compact structure and occupies little space. Utility Model Content

[0004] The purpose of this utility model is to provide a vertical lifting mechanism and engineering vehicle to solve the problems existing in the prior art. It can achieve vertical lifting, maintain parallel movement, withstand large loads and overturning moments, and has a compact structure and occupies little space.

[0005] To achieve the above objectives, this utility model provides the following solution:

[0006] This utility model provides a vertical lifting mechanism, including: a base, a carrier, a triangular base, a first lower lifting arm, a first upper lifting arm, a first rocker arm, a lower limiting structure, an upper limiting structure, and a first driving device. The base is provided with a first hinge support and a second hinge support, and the base is used for fixed connection with an engineering vehicle. The carrier is provided with a third hinge support; the triangular base is provided with a fourth hinge support; one end of the first lower lifting arm is hinged to the first hinge support, and the other end is hinged to the fourth hinge support; a fifth hinge support is provided on the first lower lifting arm; one end of the first upper lifting arm is hinged to the third hinge support. The other end is hinged to the fourth hinge support, and a sixth hinge support is provided in the middle of the first upper lifting arm; one end of the first rocker arm is hinged to the second hinge support, and the other end is hinged to the sixth hinge support; the lower limiting structure is hinged to the base and the triangular seat respectively to keep the triangular seat and the base moving in parallel; the upper limiting structure is hinged to the triangular seat and the carrier respectively to keep the carrier and the triangular seat moving in parallel; the first driving device is hinged to the fifth hinge support to drive the first lower lifting arm to rotate around the first hinge support, thereby causing the carrier to rise or fall.

[0007] Preferably, the lower limit structure includes a first lower translational rod, a seventh hinge support is also provided on the base, and an eighth hinge support is also provided on the triangular base. One end of the first lower translational rod is hinged to the seventh hinge support, and the other end is hinged to the eighth hinge support. The line connecting the first hinge support and the seventh hinge support is a first line segment, and the connection between the fourth hinge support and the eighth hinge support is a second line segment. The first line segment and the second line segment are equal and parallel.

[0008] Preferably, the upper limit structure includes a first upper translational rod, a ninth hinge support is also provided on the carrier, and a tenth hinge support is also provided on the triangular base. One end of the first upper translational rod is hinged to the ninth hinge support, and the other end is hinged to the tenth hinge support. The line connecting the ninth hinge support and the third hinge support is a third line segment, and the line connecting the tenth hinge support and the fourth hinge support is a fourth line segment. The third line segment and the fourth line segment are arranged in parallel.

[0009] Preferably, the first driving device includes a first lifting cylinder, the fixed end of the first lifting cylinder is hingedly connected to the engineering vehicle, and the output end of the first lifting cylinder is hingedly connected to the fifth hinge support.

[0010] Preferably, the assembly further includes a second lower lifting arm, a second upper lifting arm, a second rocker arm, and a second driving device. An eleventh and a twelfth hinge support are provided on the base of the second lower lifting arm. A thirteenth hinge support is provided on the carrier, and a fourteenth hinge support is provided on the triangular base. One end of the second lower lifting arm is hinged to the eleventh hinge support, and the other end is hinged to the fourteenth hinge support. A fifteenth hinge support is provided on the second lower lifting arm. One end of the second upper lifting arm is hinged to the thirteenth hinge support, and the other end is hinged to the fourteenth hinge support. A sixteenth hinge support is provided in the middle of the second upper lifting arm. One end of the second rocker arm is hinged to the twelfth hinge support, and the other end is hinged to the sixteenth hinge support. The second driving device is hinged to the fifteenth hinge support to drive the second lower lifting arm to rotate around the eleventh hinge support, thereby raising or lowering the carrier.

[0011] Preferably, the eleventh hinge support is symmetrically arranged on both sides of the base with the first hinge support, the twelfth hinge support is symmetrically arranged on both sides of the base with the second hinge support, the thirteenth hinge support is symmetrically arranged on both sides of the carrier with the third hinge support, and the fourteenth hinge support is symmetrically arranged on both sides of the triangular base with the fourth hinge support.

[0012] Preferably, the second driving device includes a second lifting cylinder, the fixed end of which is hinged to the engineering vehicle, and the output end of which is hinged to the fifteenth hinge support.

[0013] Preferably, the first lifting cylinder and the second lifting cylinder have the same structure and move synchronously.

[0014] This utility model also provides an engineering vehicle, including the vertical lifting mechanism described above.

[0015] The present invention achieves the following technical advantages over the prior art:

[0016] This utility model provides a vertical lifting mechanism and an engineering vehicle. By assembling a base, a first lower lifting arm, a first upper lifting arm, and a first rocker arm into a double-rocker mechanism, and using a lower limit structure and an upper limit structure to maintain parallel movement of the carrier relative to the base, and using a first driving device to drive the first lower lifting arm to rotate around a first hinge support, thereby raising or lowering the carrier. The double-rocker mechanism enables vertical upward movement and can withstand large loads and overturning moments. The lower and upper limit structures enable parallel movement of the carrier. Furthermore, its compact structure and small size make it suitable for installation on engineering vehicles. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 A schematic diagram of the vertical lifting mechanism provided by this utility model when it is not being lifted;

[0019] Figure 2 for Figure 1 The front view;

[0020] Figure 3 A schematic diagram of the vertical lifting mechanism provided by this utility model after lifting;

[0021] Figure 4 for Figure 3 The front view;

[0022] In the diagram: 1. Base; 2. First lower lifting arm; 3. First lower translation rod; 4. First lifting cylinder; 5. Triangular seat; 6. First upper lifting arm; 7. First upper translation rod; 8. First rocker arm; 9. Carrier; 21. First hinge support; 22. Second hinge support; 23. Third hinge support; 24. Fourth hinge support; 25. Fifth hinge support; 26. Sixth hinge support; 27. Seventh hinge support; 28. Eighth hinge support; 29. ​​Ninth hinge support; 30. Tenth hinge support. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The purpose of this utility model is to provide a vertical lifting mechanism and engineering vehicle to solve the problems existing in the prior art. It can achieve vertical lifting, maintain parallel movement, withstand large loads and overturning moments, and has a compact structure and occupies little space.

[0025] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Example 1

[0027] This embodiment provides a vertical lifting mechanism, such as... Figures 1-4As shown, the system includes: a base 1, a carrier 9, a triangular base 5, a first lower lifting arm 2, a first upper lifting arm 6, a first rocker arm 8, a lower limit structure, an upper limit structure, and a first driving device. The base 1 is provided with a first hinge support 21 and a second hinge support 22, and the base 1 is used for fixed connection with the engineering vehicle. The carrier 9 is provided with a third hinge support 23. The triangular base 5 is provided with a fourth hinge support 24. One end of the first lower lifting arm 2 is hinged to the first hinge support 21, and the other end is hinged to the fourth hinge support 24. A fifth hinge support 25 is provided on the first lower lifting arm 2. One end of the first upper lifting arm 6 is hinged to the third hinge support 23, and the other end is hinged to the fourth hinge support 24. A sixth hinge support 26 is provided in the middle of the first upper lifting arm 6. One end of the first rocker arm 8 is hinged to the second hinge support 22, and the other end is hinged to the sixth hinge support 26. The lower limit structure is hinged to both the base 1 and the triangular base 5. The system is designed to allow the triangular base 5 to move parallel to the base 1; the upper limit structure is hinged to the triangular base 5 and the carrier 9 to allow the carrier 9 to move parallel to the triangular base 5; the first drive device is hinged to the fifth hinge support 25 to drive the first lower lifting arm 2 to rotate around the first hinge support 21, thereby raising or lowering the carrier 9. By setting the base 1, the first lower lifting arm 2, the first upper lifting arm 6, and the first rocker arm 8 into a double rocker mechanism, and by using the lower limit structure and the upper limit structure to allow the carrier 9 to move parallel to the base 1, and by using the first drive device to drive the first lower lifting arm 2 to rotate around the first hinge support 21, the carrier 9 can be raised or lowered. The double rocker mechanism can achieve a vertical upward movement trajectory and withstand a large load and overturning moment. The lower limit structure and the upper limit structure can achieve parallel movement of the carrier 9. Furthermore, the structure is compact and small in size, making it suitable for installation on engineering vehicles.

[0028] In a preferred embodiment, the lower limit structure includes a first lower translation rod 3, a seventh hinge support 27 is provided on the base 1, and an eighth hinge support 28 is provided on the triangular seat 5. One end of the first lower translation rod 3 is hinged to the seventh hinge support 27, and the other end is hinged to the eighth hinge support 28. The line connecting the first hinge support 21 and the seventh hinge support 27 is the first line segment, and the connection between the fourth hinge support 24 and the eighth hinge support 28 is the second line segment. The first line segment and the second line segment are equal and parallel, resulting in a simple structure. By setting the first lower translation rod 3, a parallelogram structure is formed between the first lower translation rod 3, the first lower lifting arm 2, the base 1, and the triangular seat 5, thereby ensuring that the triangular seat 5 always maintains parallel movement relative to the base 1 during the movement.

[0029] In a preferred embodiment, the upper limit structure includes a first upper translational rod 7, a ninth hinge support 29 on the carrier 9, and a tenth hinge support 30 on the triangular seat 5. One end of the first upper translational rod 7 is hinged to the ninth hinge support 29, and the other end is hinged to the tenth hinge support 30. The line connecting the ninth hinge support 29 and the third hinge support 23 is the third line segment, and the line connecting the tenth hinge support 30 and the fourth hinge support 24 is the fourth line segment. The third and fourth line segments are arranged in parallel, resulting in a simple structure. By setting the first lower translational rod 3, a parallelogram structure is formed between the first upper translational rod 7, the first upper lifting arm 6, the carrier 9, and the triangular seat 5, thereby ensuring that the carrier 9 always maintains parallel movement relative to the triangular seat 5 during the movement, and thus enabling the carrier 9 to always maintain parallel movement relative to the base 1.

[0030] In a preferred embodiment, the first driving device includes a first lifting cylinder 4, the fixed end of which is hinged to the engineering vehicle, and the output end of which is hinged to the fifth hinge support 25. The structure is simple and the materials are readily available.

[0031] In a preferred embodiment, the vertical lifting mechanism further includes a second lower lifting arm, a second upper lifting arm, a second rocker arm, and a second driving device. The base 1 of the second lower lifting arm is provided with an eleventh and a twelfth hinge support, the carrier 9 is provided with a thirteenth hinge support, and the triangular base 5 is provided with a fourteenth hinge support. One end of the second lower lifting arm is hinged to the eleventh hinge support, and the other end is hinged to the fourteenth hinge support. A fifteenth hinge support is provided on the second lower lifting arm. One end of the second upper lifting arm is hinged to the thirteenth hinge support, and the other end is hinged to the fourteenth hinge support. A sixteenth hinge support is provided in the middle of the second upper lifting arm. One end of the second rocker arm is hinged to the twelfth hinge support, and the other end is hinged to the sixteenth hinge support. The second driving device is hinged to the fifteenth hinge support to drive the second lower lifting arm to rotate around the eleventh hinge support, thereby raising or lowering the carrier 9. By providing the second lower lifting arm, the second upper lifting arm, the second rocker arm, and the second driving device, stability during the vertical lifting process can be ensured.

[0032] In a preferred embodiment, the eleventh hinge support and the first hinge support 21 are symmetrically arranged on both sides of the base 1, the twelfth hinge support and the second hinge support 22 are symmetrically arranged on both sides of the base 1, the thirteenth hinge support and the third hinge support 23 are symmetrically arranged on both sides of the carrier 9, and the fourteenth hinge support and the fourth hinge support 24 are symmetrically arranged on both sides of the triangular seat 5. The symmetrical arrangement of each hinge support enables the connected rods to be symmetrically arranged, effectively ensuring the stability of the carrier 9 relative to the base 1 during the lifting process.

[0033] In a preferred embodiment, the second driving device includes a second lifting cylinder. The fixed end of the second lifting cylinder is hinged to the engineering vehicle, and the output end of the second lifting cylinder is hinged to the fifteenth hinge support. The first lifting cylinder 4 has the same structure as the second lifting cylinder and moves synchronously. The structure is simple, the materials are readily available, and the synchronous movement with the first lifting cylinder 4 ensures stability during the lifting process.

[0034] Example 2

[0035] This embodiment also provides an engineering vehicle, including the vertical lifting mechanism as described in Embodiment 1.

[0036] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A vertical lifting mechanism, characterized in that: include: A base, on which a first hinge support and a second hinge support are provided, the base being used for fixed connection with an engineering vehicle; A carrier, wherein a third hinge support is provided on the carrier; A triangular base, on which a fourth hinge support is provided; The first lower lifting arm has one end hinged to the first hinge support and the other end hinged to the fourth hinge support. A fifth hinge support is provided on the first lower lifting arm. A first upper lifting arm, one end of which is hinged to the third hinge support and the other end of which is hinged to the fourth hinge support, and a sixth hinge support is provided in the middle of the first upper lifting arm. A first rocker arm, one end of which is hinged to the second hinge support, and the other end of which is hinged to the sixth hinge support; A lower limit structure is hinged to the base and the triangular seat respectively so that the triangular seat and the base can move in parallel. An upper limit structure, wherein the upper limit structure is hinged to both the triangular base and the carrier to maintain parallel movement between the carrier and the triangular base; and A first driving device is hinged to the fifth hinge support to drive the first lower lifting arm to rotate around the first hinge support, thereby causing the carrier to rise or fall.

2. The vertical lifting mechanism according to claim 1, characterized in that: The lower limit structure includes a first lower translational rod, a seventh hinge support is provided on the base, and an eighth hinge support is provided on the triangular base. One end of the first lower translational rod is hinged to the seventh hinge support, and the other end is hinged to the eighth hinge support. The line connecting the first hinge support and the seventh hinge support is a first line segment, and the connection between the fourth hinge support and the eighth hinge support is a second line segment. The first line segment and the second line segment are equal and parallel.

3. The vertical lifting mechanism according to claim 2, characterized in that: The upper limit structure includes a first upper translational rod, a ninth hinge support is also provided on the carrier, and a tenth hinge support is also provided on the triangular base. One end of the first upper translational rod is hinged to the ninth hinge support, and the other end is hinged to the tenth hinge support. The line connecting the ninth hinge support and the third hinge support is a third line segment, and the line connecting the tenth hinge support and the fourth hinge support is a fourth line segment. The third line segment and the fourth line segment are arranged in parallel.

4. The vertical lifting mechanism according to claim 1, characterized in that: The first driving device includes a first lifting cylinder, the fixed end of which is hinged to the engineering vehicle, and the output end of which is hinged to the fifth hinge support.

5. The vertical lifting mechanism according to claim 4, characterized in that: It also includes a second lower lifting arm, a second upper lifting arm, a second rocker arm, and a second driving device. An eleventh and a twelfth hinge support are provided on the base of the second lower lifting arm. A thirteenth hinge support is provided on the carrier, and a fourteenth hinge support is provided on the triangular base. One end of the second lower lifting arm is hinged to the eleventh hinge support, and the other end is hinged to the fourteenth hinge support. A fifteenth hinge support is provided on the second lower lifting arm. One end of the second upper lifting arm is hinged to the thirteenth hinge support, and the other end is hinged to the fourteenth hinge support. A sixteenth hinge support is provided in the middle of the second upper lifting arm. One end of the second rocker arm is hinged to the twelfth hinge support, and the other end is hinged to the sixteenth hinge support. The second driving device is hinged to the fifteenth hinge support to drive the second lower lifting arm to rotate around the eleventh hinge support, thereby raising or lowering the carrier.

6. The vertical lifting mechanism according to claim 5, characterized in that: The eleventh hinge support is symmetrically arranged on both sides of the base with the first hinge support, the twelfth hinge support is symmetrically arranged on both sides of the base with the second hinge support, the thirteenth hinge support is symmetrically arranged on both sides of the carrier with the third hinge support, and the fourteenth hinge support is symmetrically arranged on both sides of the triangular base with the fourth hinge support.

7. The vertical lifting mechanism according to claim 6, characterized in that: The second driving device includes a second lifting cylinder, the fixed end of which is hinged to the engineering vehicle, and the output end of which is hinged to the fifteenth hinge support.

8. The vertical lifting mechanism according to claim 7, characterized in that: The first lifting cylinder and the second lifting cylinder have the same structure and move synchronously.

9. An engineering vehicle, characterized in that: Includes the vertical lifting mechanism as described in any one of claims 1 to 8.

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