Mechanical lock bin structure and bundling machine
By arranging a proximity switch and a pre-tightening component on the door of the baler, stable control of bale density under bumpy conditions is achieved, which solves the problem of large changes in bale density in the existing technology, improves baling density and reduces transportation and storage costs.
Patent Information
- Application Number
- CN202421204041.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-01-14
- Estimated Expiration
- 2034-05-29
AI Technical Summary
When existing balers are bumped during operation, the pressure of the oil cylinder system changes greatly, resulting in large changes in bale density, affecting transportation and storage costs.
A mechanical locking structure is designed, which detects the opening of the rear compartment door by setting a proximity switch on the hatch. When the set threshold is reached, the oil cylinder extends to open the rear compartment door, and the pre-tightening component and the locking component are used. The connection provides pre-tightening force when raising the bale, further increasing the density of the bale.
It effectively solves the problem of large changes in bale density caused by the cylinder system, increases the density of bales, and reduces transportation and storage costs.
Smart Images
Figure CN222340070U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of agricultural baling equipment, in particular to a mechanical lock bin structure and a baling machine. Background Art
[0002] A baler is a machine used for agricultural straw bales. It is connected to a tractor through a traction frame. The power part is connected to the gearbox through the rear output power of the tractor, and then drives the straw roller through the gearbox. Among them, the control of straw bale density is one of the key technologies of the baler. Increasing the straw bale density can effectively reduce transportation and storage costs.
[0003] In conventional technology, the density of straw bales is mostly controlled by the oil pressure in the working chamber of the cylinder. That is, the cylinder used to open the rear door determines whether to open the door according to the oil pressure during operation. When the oil pressure in the cylinder reaches the set pressure value, the cylinder is activated to open the rear door.
[0004] However, the above-mentioned method of using the oil pressure of the oil cylinder to determine the density of the straw bale will result in a large change in the pressure of the oil cylinder system when the baler is subjected to a bump during operation, thereby causing a problem of a large change in the density of the straw bale. Utility Model Content
[0005] The utility model provides a mechanical lock bin structure and a baler, so as to solve the problem of large variation in bale density of the baler in the prior art.
[0006] The utility model discloses a mechanical lock bin structure, comprising:
[0007] A cabin door, comprising a front cabin door and a rear cabin door hinged to the front cabin door;
[0008] An oil cylinder, both ends of which are rotatably connected to the front door and the rear door respectively;
[0009] A proximity switch, disposed on the front door and facing the rear door, for detecting the opening of the rear door;
[0010] Wherein, the oil cylinder is configured to extend to open the rear door when the proximity switch detects that the opening of the rear door reaches a set threshold.
[0011] Furthermore, the rear door is provided with a pre-tightening assembly, and the front door is provided with a locking assembly. The locking assembly is connected to the pre-tightening assembly before the oil cylinder is extended, and the pre-tightening assembly is used to provide a pre-tightening force for the rear door when the door is expanded.
[0012] Furthermore, the locking assembly includes a lock hook, a first pin rotatably connected to the middle of the lock hook and connected to the front door, and a second pin arranged at the tail of the lock hook, and the oil cylinder is rotatably connected to the second pin.
[0013] Furthermore, the pre-tightening assembly includes a rotating frame, a third pin shaft rotatably connected to one end of the rotating frame and connected to the rear door, a fourth pin shaft arranged in the middle of the rotating frame, and an elastic adjustment member connected to the rotating frame, and the lock hook is hooked with the fourth pin shaft when closed.
[0014] Furthermore, the locking assembly also includes a first spring connected to the lock hook, and the other end of the first spring is connected to the front door to maintain the hooked state of the lock hook.
[0015] Furthermore, the front door is provided with a limit plate, the limit plate having a first limit surface and a second limit surface, the lock hook contacts the first limit surface when rotating in one direction at a set angle, and contacts the second limit surface when rotating in another direction.
[0016] Furthermore, the elastic force adjustment member includes a fork rod rotatably connected to the free end of the rotating frame, a baffle fixed on the rear compartment door, a second spring sleeved on the fork rod passing through the baffle, and an adjustment nut threaded on the fork rod for adjusting the tightness of the second spring.
[0017] Furthermore, a scale parallel to the second spring is vertically fixed on the baffle.
[0018] Furthermore, a locking screw that can pass through the baffle is fixedly connected to the free end of the rotating frame, and a locking nut for locking the locking screw on the baffle is threadedly connected to the locking screw.
[0019] The utility model also discloses a baling machine, comprising: a mechanical locking bin structure as described in any one of the above items.
[0020] The mechanical lock bin structure and baler provided by the utility model can achieve the following technical effects:
[0021] 1. The proximity switch on the hatch is used to detect the expansion of the rear door, and then determine whether the hatch needs to be opened. Compared with the prior art, it is not affected by bumps, and thus the density of the bale can be increased, solving the problem of large changes in bale density caused by the oil cylinder system in the prior art.
[0022] 2. Through the connection between the pre-tightening component and the locking component, the rear door needs to overcome the pre-tightening force first when the bin is expanded, thereby further improving the density of the straw bale.
[0023] The above general description and the following description are merely exemplary and explanatory and are not intended to limit the present invention. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] One or more embodiments are exemplarily described by corresponding drawings, and these exemplary descriptions and drawings do not limit the embodiments. Elements with the same reference numerals in the drawings are regarded as similar elements, and wherein:
[0025] Figure 1 This is a front view of a mechanical lock structure in an embodiment of the utility model;
[0026] Figure 2 It is a three-dimensional structural schematic diagram of a mechanical lock bin structure in an embodiment of the utility model;
[0027] Figure 3 It is a schematic diagram of the connection structure between the locking assembly and the pre-tightening assembly in the embodiment of the utility model;
[0028] Figure 4 It is a three-dimensional structural schematic diagram of the locking assembly in the embodiment of the utility model;
[0029] Figure 5 It is a three-dimensional structural schematic diagram of the pre-tightening assembly in the embodiment of the utility model;
[0030] Figure 6 This is a schematic diagram of the structure of the locking assembly in the embodiment of the utility model;
[0031] Figure 7 It is a schematic diagram of the exploded structure of the pre-tightening assembly in the embodiment of the utility model.
[0032] Reference numerals:
[0033] 1. Front door; 2. Rear door; 3. Cylinder; 4. Proximity switch; 5. Preload assembly; 51. Rotating frame; 52. Third pin shaft; 53. Fourth pin shaft; 54. Elastic force adjustment member; 541. Fork lever; 542. Baffle plate; 543. Second spring; 544. Adjusting nut; 545. Scale; 546. Locking screw; 547. Locking nut; 6. Locking assembly; 61. Locking hook; 62. First pin shaft; 63. Second pin shaft; 64. First spring; 65. Limiting plate; 651. First limiting surface; 652. Second limiting surface. DETAILED DESCRIPTION
[0034] In order to be able to understand the features and technical contents of the embodiments of the utility model in more detail, the implementation of the embodiments of the utility model is described in detail below in conjunction with the accompanying drawings. The attached drawings are for reference only and are not used to limit the embodiments of the utility model. In the following technical description, for the convenience of explanation, a full understanding of the disclosed embodiments is provided through multiple details. However, one or more embodiments can still be implemented without these details. In other cases, to simplify the drawings, well-known structures and devices can be simplified for display.
[0035] The terms "first", "second", etc. in the specification and claims of the embodiments of the utility model and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the embodiments of the utility model described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.
[0036] In the embodiments of the present utility model, the terms "upper", "lower", "inside", "middle", "outside", "front", "back" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. These terms are mainly intended to better describe the embodiments of the present utility model and its embodiments, and are not intended to limit the indicated devices, elements or components to have specific directions, or to be constructed and operated in specific directions. Moreover, in addition to being used to indicate directions or positional relationships, some of the above terms may also be used to indicate other meanings. For example, the term "upper" may also be used to indicate a certain dependency or connection relationship in certain circumstances. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present utility model can be understood according to the specific circumstances.
[0037] In addition, the terms "disposed", "connected", and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection, or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be an internal connection between two devices, elements, or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the utility model can be understood according to specific circumstances.
[0038] Unless otherwise specified, the term "plurality" means two or more and "plurality" means two or more.
[0039] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present utility model can be combined with each other.
[0040] like Figures 1 to 7 As shown, the utility model discloses a mechanical lock structure, including a door, a cylinder 3 and a proximity switch 4. Figure 1 and Figure 2 As shown in the figure, the cabin door includes a front cabin door 1 and a rear cabin door 2 hinged to the front cabin door 1. The rear cabin door 2 can be opened under the action of external force. In this embodiment of the utility model, the top of the rear cabin door 2 is hinged to the front cabin door 1; technicians in this field can also set other hinge positions as needed.
[0041] The two ends of the cylinder 3 are respectively rotatably connected to the front door 1 and the rear door 2, and the cylinder 3 can open the rear door 2 when extended; the proximity switch 4 is arranged on the front door 1 and toward the rear door 2, and is used to detect the opening of the rear door 2; the proximity switch 4 is a prior art, and its specific structure, i.e., the detection principle, is not described in detail here; in an embodiment of the utility model, the cylinder 3 is configured to extend to open the rear door 2 when the proximity switch 4 detects that the opening of the rear door 2 reaches a set threshold.
[0042] In the embodiment of the utility model, the expansion of the rear door 2 is detected by the proximity switch 4 arranged on the hatch, and then a judgment is made whether the hatch needs to be opened. Compared with the prior art, it is not affected by bumps, and thus the density of the straw bale can be increased, solving the problem of large changes in the straw bale density caused by the oil cylinder system in the prior art.
[0043] Alternatively, if Figures 1 to 3 As shown in , the rear door 2 is also provided with a pre-tightening assembly 5, and the front door 1 is provided with a locking assembly 6. The locking assembly 6 is connected to the pre-tightening assembly 5 before the oil cylinder 3 is extended, and the pre-tightening assembly 5 is used to provide a pre-tightening force for the rear door 2 when the warehouse is expanded. That is, when the opening of the rear door 2 is less than the set value, the locking assembly 6 is connected to the pre-tightening assembly 5. Since the pre-tightening assembly 5 provides a pre-tightening force for the rear door 2, the rear door 2 needs to overcome the pre-tightening force first when the warehouse is expanded, thereby further improving the density of the straw bale.
[0044] Alternatively, if Figure 4 As shown in the figure, the locking assembly 6 includes a lock hook 61, a first pin 62 rotatably connected to the middle of the lock hook 61 and connected to the front door 1, and a second pin 63 arranged at the rear of the lock hook 61, and the oil cylinder 3 is rotatably connected to the second pin 63. Through such an arrangement, when the oil cylinder 3 is extended, the lock hook 61 is first rotated to a certain angle, and the lock hook 61 is separated from the pre-tightening assembly 5. As the oil cylinder 3 continues to extend, the rear door 2 is opened.
[0045] Alternatively, if Figure 5 As shown in the figure, the preload assembly 5 includes a rotating frame 51, a third pin shaft 52 rotatably connected to one end of the rotating frame 51 and connected to the rear door 2, a fourth pin shaft 53 arranged in the middle of the rotating frame 51, and an elastic force adjustment member 54 connected to the rotating frame 51, and the lock hook 61 is hooked with the fourth pin shaft 53 when closed. Of course, it should be pointed out here that the elastic force adjustment member 54 has various forms, for example, it can be a linear expansion and contraction of a spring to achieve the change of the preload force of the rotating frame 51, or it can be connected to the third pin shaft 52 through a hinge spring, and the change of the preload force is achieved by rotating the hinge spring.
[0046] Alternatively, if Figure 6As shown in , the locking assembly 6 further includes a first spring 64 connected to the lock hook 61, and the other end of the first spring 64 is connected to the front door 1 to maintain the hooked state of the lock hook 61. Figure 6 As shown, in some embodiments of the present invention, the first spring 64 is arranged below the lock hook 61. Through the tension of the first spring 64, the lock hook 61 can maintain the hook connection with the fourth pin shaft 53 before the cylinder 3 is actuated, thereby preventing the lock hook 61 from being separated.
[0047] Alternatively, if Figure 6 As shown in , the front door 1 is also provided with a limit plate 65, which has a first limit surface 651 and a second limit surface 652. When the lock hook 61 rotates in one direction at a set angle, it contacts the first limit surface 651, and when it rotates in another direction, it contacts the second limit surface 652. Figure 6 As shown, in some embodiments of the present invention, the first limiting surface 651 of the limiting plate 65 is used to prevent the locking hook 61 from swinging too much when the locking hook 61 rotates upward, and the second limiting surface 652 is used to prevent the locking hook 61 from being unable to fall off due to excessive compression of the first spring 64 when the locking hook 61 rotates downward. The specific angle can be set by those skilled in the art according to the actual position of the locking hook 61.
[0048] Alternatively, if Figure 5 As shown in , the elastic force adjustment member 54 includes a fork rod 541 rotatably connected to the free end of the rotating frame 51, a baffle 542 fixed to the rear door 2, a second spring 543 sleeved on the fork rod 541 passing through the baffle 542, and an adjustment nut 544 screwed on the fork rod 541 for adjusting the tightness of the second spring 543. Figure 5 As shown in , it should be pointed out here that the baffle 542 has a hole for the fork rod 541 to pass through, and the hole is smaller than the inner diameter of the second spring 543. By screwing the adjustment nut 544, the compression degree of the second spring 543 can be changed, thereby achieving the effect of adjusting the preload force.
[0049] Alternatively, if Figure 5 As shown in , a scale 545 parallel to the second spring 543 is also vertically fixed on the baffle 542. Figure 5 As shown in , the scale 545 has scales, and different scales represent different preload forces. In specific implementation, different scales can be adjusted for different crops, which can not only increase the density of the bale, but also increase the adaptability of the product to different crops, making the baler more applicable. Of course, it should be pointed out here that when the hinge spring structure is adopted, the corresponding scale 545 can also be designed as an angle scale plate.
[0050] Alternatively, if Figure 5 and Figure 7As shown in , the free end of the rotating frame 51 is also fixedly connected with a locking screw 546 that can pass through the baffle 542, and a locking nut 547 for locking the locking screw 546 on the baffle 542 is screwed on the locking screw 546. The function of the locking screw 546 is to prevent the pre-tightening force of the lock mechanism from changing before operation. After the locking screw 546 penetrates the baffle 542, the locking nuts 547 on both sides of the locking screw 546 are screwed toward the baffle 542, so that the compression degree of the second spring 543 can be fixed, thereby preventing the elastic force adjustment member 54 from loosening.
[0051] In an embodiment of the present utility model, a baler is also provided, comprising any one of the mechanical locking structures described above.
[0052] Application scenario of an exemplary embodiment:
[0053] like Figures 1 to 7 As shown, before the specific operation of baling the grass, the preload force of the second spring 543 is adjusted by adjusting the nut 544 according to the type of crops, and then the locking nut 547 on the locking screw 546 is loosened, and then the grass baling operation is carried out. When the rear door 2 is expanded, the lock hook 61 first hangs on the rotating frame 51 under the action of the preload force of the second spring 543 to rotate at a certain angle, and the front door 1 and the rear door 2 are opened at a certain angle, and the opening angle is detected by the proximity switch 4. Before the opening of the rear door 2 reaches the set value, the lock hook 61 remains hooked with the fourth pin 53 under the action of the first spring 64. This arrangement can increase the baling density of the bales. When the opening of the rear door 2 reaches the set value, the cylinder 3 extends, first swinging the lock hook 61 upward to disengage the lock hook 61 from the fourth pin 53. Then, under the action of the limit plate 65, the lock hook 61 stops rotating, the cylinder 3 continues to extend, the rear door 2 continues to open until it is fully opened, the bale falls, and then the next cycle operation is carried out.
[0054] The above description and the accompanying drawings fully illustrate the embodiments of the utility model so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments represent only possible variations. Unless explicitly required, individual components and functions are optional, and the order of operations may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. The embodiments of the utility model are not limited to the structures described above and shown in the accompanying drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.
Claims
1. A mechanical lock structure, characterized in that: include: A cabin door, comprising a front cabin door (1) and a rear cabin door (2) hinged to the front cabin door (1); An oil cylinder (3), the two ends of which are rotatably connected to the front door (1) and the rear door (2); a proximity switch (4), arranged on the front door (1) and facing the rear door (2), and used for detecting the opening degree of the rear door (2); The oil cylinder (3) is configured to extend to open the rear door (2) when the proximity switch (4) detects that the opening of the rear door (2) reaches a set threshold.
2. The mechanical lock structure according to claim 1, characterized in that: The rear door (2) also has a pre-tightening assembly (5), and the front door (1) has a locking assembly (6). The locking assembly (6) is connected to the pre-tightening assembly (5) before the oil cylinder (3) is extended. The pre-tightening assembly (5) is used to provide a pre-tightening force for the rear door (2) when the door is expanded.
3. The mechanical lock structure according to claim 2, characterized in that: The locking assembly (6) comprises a locking hook (61), a first pin shaft (62) rotatably connected to the middle part of the locking hook (61) and connected to the front door (1), and a second pin shaft (63) arranged at the rear part of the locking hook (61), and the oil cylinder (3) is rotatably connected to the second pin shaft (63).
4. The mechanical lock structure according to claim 3, characterized in that: The pre-tightening assembly (5) comprises a rotating frame (51), a third pin shaft (52) rotatably connected to one end of the rotating frame (51) and connected to the rear door (2), a fourth pin shaft (53) arranged in the middle of the rotating frame (51), and an elastic force adjustment member (54) connected to the rotating frame (51), and the locking hook (61) is hooked with the fourth pin shaft (53) when closed.
5. The mechanical lock structure according to claim 4, characterized in that: The locking assembly (6) further comprises a first spring (64) connected to the locking hook (61), wherein the other end of the first spring (64) is connected to the front door (1) to maintain the locking hook (61) in a hooked state.
6. The mechanical lock structure according to claim 5, characterized in that: The front door (1) is also provided with a limit plate (65), the limit plate (65) having a first limit surface (651) and a second limit surface (652); when the lock hook (61) rotates in one direction at a set angle, it contacts the first limit surface (651), and when it rotates in another direction, it contacts the second limit surface (652).
7. The mechanical lock structure according to claim 4, characterized in that: The elastic force adjustment member (54) comprises a shift fork rod (541) rotatably connected to the free end of the rotating frame (51), a baffle plate (542) fixed to the rear compartment door (2), a second spring (543) sleeved on the shift fork rod (541) passing through the baffle plate (542), and an adjustment nut (544) screwed on the shift fork rod (541) for adjusting the tightness of the second spring (543).
8. The mechanical lock structure according to claim 7, characterized in that: A scale (545) parallel to the second spring (543) is also vertically fixed on the baffle (542).
9. The mechanical lock structure according to claim 8, characterized in that: The free end of the rotating frame (51) is also fixedly connected to a locking screw (546) that can pass through the baffle (542), and a locking nut (547) for locking the locking screw (546) on the baffle (542) is threadedly connected to the locking screw (546).
10. A baling machine, characterized in that: include: A mechanical lock structure as claimed in any one of claims 1 to 9.