A boom structure for wet spraying machine
By adding link assembly to the wet sprayer arm structure, the problem of small pitch angle adjustable range in the prior art is solved, and a larger angle adjustable range and higher application flexibility is achieved.
Patent Information
- Application Number
- CN202421549728.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-02
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-07-02
AI Technical Summary
The pitch angle adjustable range of the existing wet sprayer boom structure is small, making it difficult to meet certain engineering needs.
A link assembly is added between the middle arm segment and the rear arm segment, and the output shaft of the drive cylinder is connected to the hinge point of the first link and the second link, adding an adjustable range of pitch angle.
By adding linkage assembly, the adjustable pitch angle range of the boom structure is expanded, and the flexibility and efficiency of the equipment are improved in different engineering applications.
Smart Images
Figure CN222745048U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the field of engineering machinery, in particular to an arm structure for a wet spraying machine. Background Art
[0002] Wet spraying machine is a kind of mechanical equipment for vegetation greening or concrete spraying, mainly used for highway (railway) slope greening, slope protection, mountain management, mine greening, desert management, garbage disposal and other projects. The boom structure is the main actuator on the wet spraying machine, which is used to adjust the angle of the nozzle.
[0003] In the related art, the boom structure generally adopts a three-section structure, that is, it includes three articulated boom sections. The pitch angle of the boom structure is mainly reflected by the rotation angle of the middle boom section around the rear boom section, and the middle boom section and the rear boom section are directly connected by a driving cylinder, so that the pitch angle of the boom structure is subject to the telescopic length of the driving cylinder, resulting in a smaller adjustable range of the pitch angle.
[0004] Therefore, it is necessary to provide a boom structure for a wet spraying machine to solve the above problems. Utility Model Content
[0005] In view of the above-mentioned defects of the prior art, the utility model provides a boom structure for a wet spraying machine, in which a connecting rod assembly is added between the middle boom section and the rear boom section, and the output shaft of the driving cylinder is connected to the hinge point of the first connecting rod and the second connecting rod, thereby increasing the adjustable range of the pitch angle.
[0006] In order to solve the above problems, the technical solution of the utility model is:
[0007] A boom structure for a wet spraying machine, comprising:
[0008] The forearm section, the middle arm section and the hind arm section are connected in sequence;
[0009] A first driving device, used for driving the forearm section to rotate around a connection point with the middle arm section;
[0010] A second driving device, used for driving the middle boom section to rotate around a connection point with the rear boom section;
[0011] A connecting rod assembly, comprising a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are hinged to form a first node, an end of the first connecting rod away from the first node is hinged to the middle arm section, and an end of the second connecting rod away from the first node is hinged to the rear arm section;
[0012] One end of the second driving device is hinged to the middle arm section, and the other end is hinged to the first node.
[0013] As an improvement, the second driving device includes a second driving cylinder, a second output shaft and a fisheye joint, the second driving cylinder is hinged to the middle arm section, the second output shaft is connected to the second driving cylinder, the second driving cylinder drives the second output shaft to move linearly along its own axial direction, the fisheye joint is fixed to the end of the second output shaft away from the second driving cylinder, the first connecting rod and the second connecting rod are connected by a pin shaft, and the fisheye joint is sleeved on the pin shaft.
[0014] As an improvement, the number of the first connecting rods is two, one end of the two first connecting rods is located at opposite sides of the middle arm section, and the other end is located at opposite sides of the fisheye joint.
[0015] As an improvement, the rear arm section includes an arm section body and a connecting plate fixed to the arm section body, the number of the connecting plates is two, the two connecting plates are located on opposite sides of the arm section body, and the middle arm section is hinged to the connecting plates.
[0016] As an improvement, the number of the second connecting rods is two, one end of the two second connecting rods is located at opposite sides of the fisheye joint; and the other end is hinged to the two connecting plates respectively.
[0017] As an improvement, the first driving device includes a first driving cylinder and a first output shaft, the first driving cylinder is hinged to the middle arm section, the first output shaft is connected to the first driving cylinder, the first driving cylinder drives the first output shaft to move linearly along its own axial direction, and the end of the first output shaft away from the first driving cylinder is hinged to the forearm section.
[0018] As an improvement, the front arm section and the rear arm section are respectively located at two ends of the middle arm section.
[0019] As an improvement, five hinge points are arranged on the middle arm section, which are divided into: a first hinge point, a second hinge point, a third hinge point, a fourth hinge point and a fifth hinge point in sequence from the front arm section to the rear arm section. The front arm section is connected to the middle arm section through the first hinge point, the first drive device is connected to the middle arm section through the second hinge point, the second drive device is connected to the middle arm section through the third hinge point, the second connecting rod is connected to the middle arm section through the fourth hinge point, and the rear arm section is connected to the middle arm section through the fifth hinge point.
[0020] As an improvement, the rear arm section is connected to the body of the wet spraying machine, and the front arm section is connected to the spray head of the wet spraying machine.
[0021] The beneficial effects of the utility model are:
[0022] A connecting rod assembly is added at the connecting position between the rear arm section and the middle arm section, and the connecting rod assembly includes a first connecting rod and a second connecting rod. The first connecting rod and the second connecting rod are hinged to form a first node. The end of the first connecting rod away from the first node is hinged to the middle arm section, and the end of the second connecting rod away from the first node is hinged to the rear arm section; one end of the second drive device is hinged to the middle arm section, and the other end is hinged to the first node. The second connecting rod is equivalent to increasing the length of the second output shaft in the second drive device, increasing the adjustable range of the pitch angle, and the first connecting rod plays a role of middle support, increasing the connection strength between the second drive device and the first node. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A three-dimensional structural diagram of a boom structure for a wet spraying machine provided by the utility model;
[0024] Figure 2 for Figure 1 A structural diagram of a boom structure for a wet spraying machine from another angle shown;
[0025] Figure 3 for Figure 1 A front view of a boom structure for a wet spraying machine is shown. DETAILED DESCRIPTION
[0026] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred elements must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0027] The embodiments of the present utility model are further described below in conjunction with the accompanying drawings.
[0028] like Figure 1-Figure 3 As shown, this embodiment provides a boom structure for a wet spraying machine, including a front boom section 10 , a middle boom section 20 , a rear boom section 30 , a first drive device 40 , a second drive device 50 and a connecting rod assembly 60 .
[0029] The front arm section 10, the middle arm section 20 and the rear arm section 30 are connected in sequence, the front arm section 10 and the rear arm section 30 are respectively located at both ends of the middle arm section 20, the rear arm section 30 is connected to the body of the wet spraying machine, and the front arm section 10 is connected to the nozzle of the wet spraying machine.
[0030] The first driving device 40 is used to drive the front arm section 10 to rotate around the connection point with the middle arm section 20, thereby adjusting the angle between the front arm section 10 and the middle arm section 20, and changing the orientation and position of the front arm section 10. The first driving device 40 includes a first driving cylinder 41 and a first output shaft 42, the first driving cylinder 41 is hinged to the middle arm section 20, the first output shaft 42 is connected to the first driving cylinder 41, the first driving cylinder 41 drives the first output shaft 42 to move linearly along its own axial direction, and the end of the first output shaft 42 away from the first driving cylinder 41 is hinged to the front arm section 10.
[0031] The second driving device 50 is used to drive the middle boom section 20 to rotate around the connection point with the rear boom section 30, thereby adjusting the angle between the middle boom section 20 and the rear boom section 30, and changing the orientation and position of the middle boom section 20. Since the length of the middle boom section 20 is generally large, the pitch angle of the boom structure is mainly reflected by the angle between the middle boom section 20 and the rear boom section 30.
[0032] The connecting rod assembly 60 includes a first connecting rod 61 and a second connecting rod 62, the first connecting rod 61 and the second connecting rod 62 are hinged to form a first node 63, the end of the first connecting rod 61 away from the first node 63 is hinged to the middle arm section 20, and the end of the second connecting rod 62 away from the first node 63 is hinged to the rear arm section 30; one end of the second driving device 50 is hinged to the middle arm section 20, and the other end is hinged to the first node 63.
[0033] The second driving device 50 includes a second driving cylinder 51, a second output shaft 52 and a fisheye joint 53. The second driving cylinder 51 is hinged to the middle arm section 20, and the second output shaft 52 is connected to the second driving cylinder 51. The second driving cylinder 51 drives the second output shaft 52 to move linearly along its own axial direction. The fisheye joint 53 is fixed to one end of the second output shaft 52 away from the second driving cylinder 51. The first connecting rod 61 and the second connecting rod 62 are connected by a pin shaft 64. The fisheye joint 53 is sleeved on the pin shaft 64. The first connecting rod 61, the second connecting rod 62 and the fisheye joint 53 can all rotate around the pin shaft 64.
[0034] Specifically, five hinge points are arranged on the middle arm section 20, which are respectively divided into: a first hinge point 21, a second hinge point 22, a third hinge point 23, a fourth hinge point 24 and a fifth hinge point from the front arm section 10 to the direction close to the rear arm section 30. The front arm section 10 is connected to the middle arm section 20 through the first hinge point 21, the first drive device 40 is connected to the middle arm section 20 through the second hinge point 22, the second drive device 50 is connected to the middle arm section 20 through the third hinge point 23, the second connecting rod is connected to the middle arm section through the fourth hinge point, and the rear arm section is connected to the middle arm section through the fifth hinge point.
[0035] Preferably, the number of the first connecting rods 61 is two, and one end of the two first connecting rods 61 is located at two opposite sides of the middle arm section 20 , and the other end is located at two opposite sides of the fisheye joint 53 .
[0036] The rear boom section 30 includes a boom section body 31 and a connecting plate 32 fixed to the boom section body 31 . There are two connecting plates 32 , which are located at opposite sides of the boom section body 31 . The middle boom section 20 is hinged to the connecting plates 32 .
[0037] There are two second connecting rods 62 , one end of each of which is located at two opposite sides of the fisheye joint 53 ; and the other end is hinged to the two connecting plates 32 , respectively.
[0038] The distribution pattern of the first connecting rod 61 and the second connecting rod 62 can ensure that the driving force generated by the second driving cylinder 51 can be transmitted to both sides of the boom in a balanced manner, thereby avoiding the tilting of the boom due to uneven force on both sides.
[0039] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with the technology to understand the content of the utility model and implement it accordingly, and they 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 boom structure for a wet spraying machine, characterized in that: include: The forearm section, the middle arm section and the hind arm section are connected in sequence; A first driving device, used for driving the forearm section to rotate around a connection point with the middle arm section; A second driving device, used for driving the middle boom section to rotate around a connection point with the rear boom section; A connecting rod assembly, comprising a first connecting rod and a second connecting rod, wherein the first connecting rod and the second connecting rod are hinged to form a first node, an end of the first connecting rod away from the first node is hinged to the middle arm section, and an end of the second connecting rod away from the first node is hinged to the rear arm section; One end of the second driving device is hinged to the middle arm section, and the other end is hinged to the first node.
2. The boom structure for a wet spraying machine according to claim 1, characterized in that: The second driving device includes a second driving cylinder, a second output shaft and a fisheye joint. The second driving cylinder is hinged to the middle arm section, the second output shaft is connected to the second driving cylinder, the second driving cylinder drives the second output shaft to move linearly along its own axial direction, the fisheye joint is fixed to one end of the second output shaft away from the second driving cylinder, the first connecting rod and the second connecting rod are connected by a pin shaft, and the fisheye joint is sleeved on the pin shaft.
3. The boom structure for a wet spraying machine according to claim 2, characterized in that: The number of the first connecting rods is two, one end of the two first connecting rods is located at two opposite sides of the middle arm section, and the other end of the two first connecting rods is located at two opposite sides of the fisheye joint.
4. The boom structure for a wet spraying machine according to claim 3, characterized in that: The rear boom section includes a boom section body and a connecting plate fixed to the boom section body. The number of the connecting plates is two. The two connecting plates are located on opposite sides of the boom section body. The middle boom section is hinged to the connecting plates.
5. The boom structure for a wet spraying machine according to claim 4, characterized in that: The number of the second connecting rods is two, one end of the two second connecting rods is located at the opposite sides of the fisheye joint; and the other ends are hinged to the two connecting plates respectively.
6. The boom structure for a wet spraying machine according to claim 1, characterized in that: The first driving device includes a first driving cylinder and a first output shaft. The first driving cylinder is hinged to the middle arm section, and the first output shaft is connected to the first driving cylinder. The first driving cylinder drives the first output shaft to move linearly along its own axial direction, and one end of the first output shaft away from the first driving cylinder is hinged to the forearm section.
7. The boom structure for a wet spraying machine according to claim 1, characterized in that: The front arm section and the rear arm section are respectively located at two ends of the middle arm section.
8. The boom structure for a wet spraying machine according to claim 1, characterized in that: Five hinge points are arranged on the middle arm section, which are divided into: a first hinge point, a second hinge point, a third hinge point, a fourth hinge point and a fifth hinge point in sequence from the front arm section to the rear arm section. The front arm section is connected to the middle arm section via the first hinge point, the first drive device is connected to the middle arm section via the second hinge point, the second drive device is connected to the middle arm section via the third hinge point, the second connecting rod is connected to the middle arm section via the fourth hinge point, and the rear arm section is connected to the middle arm section via the fifth hinge point.
9. The boom structure for a wet spraying machine according to claim 1, characterized in that: The rear arm section is connected to the body of the wet spraying machine, and the front arm section is connected to the spray head of the wet spraying machine.