Supporting structure and husked rice separator

Abstract

The utility model discloses a supporting structure and a husked rice separator, and belongs to the technical field of agricultural production equipment.The supporting structure comprises a long connecting rod, a supporting shaft and a pair of side supporting assemblies arranged in a bilateral symmetry mode. The adjacent transverse supports are fixedly connected through connecting columns. The supporting shaft is used for penetrating through the transverse support and is rotatably arranged in the transverse support, and connecting sections exposed out of the outer side of the transverse support are arranged at the two ends of the supporting shaft; the long connecting rod is used for being movably connected with the connecting sections of the parallel supporting shafts on the left side and the right side. The supporting structure can solve the technical problems that an existing V-shaped knife edge type double-body gravity husked rice separator is unstable in motion trail, and a bearing supporting type double-body gravity husked rice separator is prone to causing screen body cracking due to bearing abrasion.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural production equipment, in particular to a support structure. In addition, the utility model also relates to a rice-rough separator comprising the support structure. Background Art

[0002] The twin-body gravity rice-rough separator is the main product in the rice milling equipment. For example, a twin-body gravity rice-rough separator disclosed in the Chinese patent with patent number CN205020382U mainly includes a frame, a cradle, a support ear, a lug, a bracket, a screen body, a transmission structure, and a tension spring device. The frame is fixed to the ground, and the cradle, the support ear, the support ear, and the bracket are connected to the frame from bottom to top in sequence to support the screen body. The two screen bodies are symmetrically arranged on the left and right, and the transmission structure connects the left and right screen bodies. The tension spring device is arranged between the screen body and the cradle. The tension spring device is used to apply tension to the screen body so that the support ear and the support ear are in good contact, so that the screen body can better screen grains.

[0003] The supporting transmission structure is an important structure of the double-frame gravity rice and roughness separator. It must be able to effectively ensure that the movement trajectories of the left and right screen bodies are consistent and have good durability. At present, there are generally two structures. One is the V-shaped knife-edge type. Each screen body is supported by multiple sets of ears and supports on the support frame and the inclined support frame respectively, and supported on the machine base through the inclined support frame. The ears and supports are floating supports. The other is the bearing support type. The supporting structure is designed as a double parallelogram linkage structure with multiple supporting shafts in parallel. It is connected to the supporting screen body upward and the eccentric inclination adjustment mechanism downward. It is supported on the machine base. The bearing support type is a rigid support.

[0004] The support transmission structure adopted by the double-body gravity rice roughness separator disclosed in the above CN 205020382 U is a V-shaped knife-edge type. For the V-shaped knife-edge type support transmission structure, the ears and supports are non-standard special parts, which are difficult to process, and the parts processing errors and assembly cumulative errors are large, which easily lead to 8 groups of ears and supports being difficult to support at the same time, and the force magnitudes of the pairs in the 8 groups of ears and supports are also inconsistent. Each ear is floatingly supported in the groove of the support. In addition to the normal swing, there is a certain axial movement and upward jump, which causes the ears and supports in each group of support frames to move asynchronously. The screen body has problems of twisting, upward jumping or axial movement during operation, which affects the rice roughness sorting effect of the screen body, and also causes the movement trajectories of the two screen bodies to be asynchronous, making the sorting effect worse.

[0005] For the traditional bearing-type rigid support structure, the screen body has only one degree of freedom, which is swinging. The motion trajectory is stable. The bearings are standard parts, which are easy to purchase and replace repeatedly. The movement and separation effects of the screen bodies on both sides are consistent and good. However, the tolerance for manufacturing errors, installation errors, and wear errors is small. And because the outer ring of the bearing is generally installed inside the supporting rod, the bearing is always subjected to the large load impact force during the operation of the screen body. If the manufacturing and installation accuracy of the transmission and support assembly is not enough, it will cause the wear of the supporting bearing to accelerate, which will cause the resistance of the screen body to increase, the motion trajectory to deteriorate, and eventually cause part of the screen body to crack. Utility Model Content

[0006] The utility model provides a supporting structure to solve the technical problems that the existing V-shaped knife-edge double-body gravity rice roughness separator has unstable motion trajectory and the bearing-supported double-body gravity rice roughness separator easily causes cracking of the screen body due to bearing wear.

[0007] At the same time, the utility model also provides a rice-rough separator including the above-mentioned supporting structure.

[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0009] A supporting structure for supporting a screen body of a rice-rough separator, comprising a long connecting rod, a supporting shaft and a pair of side supporting assemblies arranged symmetrically on the left and right:

[0010] The side support assembly includes a plurality of horizontal brackets arranged in parallel up and down, and adjacent horizontal brackets are fixedly connected by connecting columns;

[0011] The support shaft is used to penetrate the transverse bracket and is rotatably arranged in the transverse bracket, and both ends of the support shaft are provided with connecting sections exposed outside the transverse bracket;

[0012] The long connecting rod is arranged in a one-to-one correspondence with the cross bracket, the first end of the long connecting rod is hinged to the connecting section of the supporting shaft in one of the side supporting assemblies, and the second end of the long connecting rod is hinged to the connecting section of the corresponding supporting shaft in the other side supporting assembly, and then the pair of side supporting assemblies are connected into a whole through the long connecting rod.

[0013] Furthermore, supporting bearings are arranged on the connecting sections at both ends of the supporting shaft, and connecting pieces are arranged at both ends of the long connecting rod, and the connecting pieces are connected to the supporting bearings.

[0014] Furthermore, the connecting member includes a connecting rod and a connecting ring, the connecting rod is connected to the long connecting rod, and the connecting ring is used to be fixedly sleeved on the supporting bearing.

[0015] Furthermore, grooves are provided at both ends of the long connecting rod, a first connecting hole is provided on the side wall of the groove, and a second connecting hole is provided on the connecting rod. The connecting rod is inserted into the groove and bolts are passed through the first connecting hole and the second connecting hole in sequence to connect and fix the connecting rod to the long connecting rod.

[0016] Furthermore, a bearing cover is provided on the connecting section of the supporting shaft, and a bearing pressure cover is provided on the end surface of the connecting section of the supporting shaft. The bearing pressure cover and the bearing cover are located on both axial sides of the supporting bearing and are used to axially limit the supporting bearing.

[0017] Furthermore, locking pieces are provided on the connecting sections at both ends of the support shaft, and the locking pieces include locking nuts threadedly connected to the connecting sections and used to abut against the cross bracket. The locking pieces on both ends of the support shaft are used to limit the axial displacement of the support shaft relative to the cross bracket.

[0018] Furthermore, the side support assembly also includes a vertical support arranged on the end of the horizontal support, a plurality of the vertical supports are arranged parallel to each other, and the horizontal support is arranged vertically between two adjacent vertical supports.

[0019] Furthermore, a support is provided on the top surface of the vertical support and / or the uppermost horizontal support, and the support is used to be connected to the sieve body support ear at the bottom of the sieve body.

[0020] Furthermore, the ground of the vertical support and / or the lowest horizontal support is provided with a support ear, and the support ear is used to be connected to the base of the grain-rough separator.

[0021] According to another aspect of the utility model, a grain-rough separator is also provided, comprising the above-mentioned supporting structure and a pair of sieve bodies symmetrically arranged on the left and right, wherein the pair of supporting structures are arranged at the bottom of the pair of sieve bodies in a one-to-one correspondence and are used to support the sieve bodies, and the grain-rough separator also comprises a machine base, wherein the machine base is provided with a pair of inclined supporting frames symmetrically arranged on the left and right, and the inclined supporting frames are connected to the supporting structures in a one-to-one correspondence and support the supporting structures.

[0022] The utility model has the following beneficial effects:

[0023] The utility model rotatably installs the supporting shaft through a transverse bracket, the transverse bracket is arranged in parallel up and down, and each transverse bracket is fixedly connected by a connecting column to form a side supporting assembly, the side supporting assembly is symmetrically arranged on the left and right sides, the supporting shafts on the left and right sides are connected by a long connecting rod, and the connecting sections of the long connecting rod and the two ends of the supporting shaft are movably connected, a plurality of long connecting rods are arranged at the front end of the side supporting assembly, and a variable parallelogram is formed between the upper and lower adjacent long connecting rods and the side supporting assembly; similarly, a variable parallelogram is also formed between the upper and lower adjacent long connecting rods and the side supporting assembly at the rear end of the side supporting assembly. Under the action of the movable connection of the long connecting rod and the limit, the parallel linkage of the side supporting assemblies on both sides is realized, and the consistency of the movement of the side supporting assemblies on both sides is maintained. And the long connecting rod does not directly play the role of supporting the screen body, so the long connecting rod will not be subjected to the large load impact force during the movement of the screen body, which is conducive to reducing the wear of the movable connecting parts at both ends of the long connecting rod, improving the service life of the movable connecting parts, and reducing the impact on the movement of the screen body.

[0024] Of course, any product implementing the present invention does not necessarily need to achieve all the advantages described above at the same time. In addition to the purposes, features and advantages described above, the present invention also has other purposes, features and advantages. The present invention will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The drawings constituting a part of this application are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0026] Figure 1 It is a schematic diagram of the connection between the grain-rough separator and the supporting structure in the preferred embodiment of the utility model;

[0027] Figure 2 It is an overall schematic diagram of the support structure of the preferred embodiment of the utility model.

[0028] Figure 3 It is a front view schematic diagram of the support structure of the preferred embodiment of the utility model.

[0029] Figure 4 It is a schematic diagram of the installation structure of the support shaft of the preferred embodiment of the utility model.

[0030] Figure 5 It is a schematic diagram of the installation structure of the support bearing of the preferred embodiment of the utility model.

[0031] Figure 6 It is a structural schematic diagram of a connecting piece of a preferred embodiment of the utility model.

[0032] Legend: 1. Screen body; 2. Screen body support ear; 3. Support; 4. Side support assembly; 5. Oblique support frame; 6. Machine base; 7. Long connecting rod; 8. Vertical bracket; 9. Support ear; 10. Support shaft; 11. Connecting piece; 1101. Connecting rod; 1102. Connecting ring; 12. Horizontal bracket; 13. Support bearing; 14. Round nut; 15. Bearing pressure cover; 16. Mounting plate; 17. Bearing cover; 18. Locking piece. DETAILED DESCRIPTION

[0033] In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the utility model.

[0034] See also Figure 1 , is a structural schematic diagram of a preferred embodiment of a supporting structure and a grain-rough separator provided by the utility model.

[0035] A support structure and a rice-rough separator, used for supporting a screen body 1 of the rice-rough separator, comprising a long connecting rod 7, a support shaft 10 and a pair of side support assemblies 4 symmetrically arranged on the left and right:

[0036] The side support assembly 4 includes a plurality of vertically parallel horizontal brackets 12, and adjacent horizontal brackets 12 are fixedly connected by connecting columns;

[0037] The support shaft 10 is used to penetrate the transverse bracket 12 and is rotatably arranged in the transverse bracket 12. Both ends of the support shaft 10 are provided with connecting sections exposed outside the transverse bracket 12.

[0038] The long connecting rod 7 is arranged in a one-to-one correspondence with the cross bracket 12, the first end of the long connecting rod 7 is hinged to the connecting section of the supporting shaft 10 in one of the side supporting assemblies 4, and the second end of the long connecting rod 7 is hinged to the connecting section of the corresponding supporting shaft 10 in the other side supporting assembly 4, and then the pair of side supporting assemblies 4 are connected into a whole through the long connecting rod 7.

[0039] The utility model rotatably installs the support shaft 10 through the transverse bracket 12, and the support shafts 10 on the left and right sides are connected by the long connecting rod 7, and the connecting sections of the long connecting rod 7 and the two ends of the support shaft 10 are movably connected. The front end and the rear end of the side support assembly 4 are provided with multiple long connecting rods 7, and the upper and lower adjacent long connecting rods 7 at the front end and the rear end form a variable parallelogram with the side support assembly 4. Under the action of the movable connection of the long connecting rod 7 and the limit, the parallel linkage of the side support assemblies 4 on both sides is realized, and the consistency of the movement of the side support assemblies 4 on both sides is maintained. And the long connecting rod 7 does not directly play the role of supporting the screen body 1, so the long connecting rod 7 will not be subjected to the large load impact force during the movement of the screen body 1, which is conducive to reducing the wear of the movable connecting parts at both ends of the long connecting rod 7.

[0040] Preferably, please refer to Figure 2 , 4 As shown in FIG. 5 , support bearings 13 are provided on the connecting sections at both ends of the support shaft 10 , and connecting pieces 11 are provided at both ends of the long connecting rod 7 , and the connecting pieces 11 are connected to the support bearings 13 .

[0041] It can be understood that the supporting bearing 13 is connected to the outer end of the supporting shaft 10, and the long connecting rod 7 is connected to the supporting bearing 13 through the connecting piece 11. Since the long connecting rod 7 mainly plays the role of movably connecting the side supporting components 4 on both sides, the supporting bearing 13 does not bear the large load impact force of the screen body 1 during operation, but only bears the smaller coordination force (tension) between the left and right groups of side supporting components 4, maintaining the synchronous swing of the two wide support frames, thereby reducing the wear of the supporting bearing 13 and increasing the life of the movable connecting parts.

[0042] Preferably, please refer to Figure 5 , 6 As shown, the connecting member 11 includes a connecting rod 1101 and a connecting ring 1102 . The connecting rod 1101 is connected to the long connecting rod 7 , and the connecting ring 1102 is used to be fixedly sleeved on the supporting bearing 13 .

[0043] It can be understood that, by connecting the connecting ring 1102 with the supporting bearing 13, the installation and disassembly between the long connecting rod 7 and the supporting shaft 10 can be facilitated, thereby improving the convenience of repairing and replacing parts.

[0044] Preferably, please refer to Figure 2 , 4 As shown in Figure 5, grooves are provided at both ends of the long connecting rod 7, a first connecting hole is provided on the side wall of the groove, and a second connecting hole is provided on the connecting rod 1101. The connecting rod 1101 is inserted into the groove and bolts are passed through the first connecting hole and the second connecting hole in sequence to connect and fix the connecting rod 1101 to the long connecting rod 7.

[0045] It can be understood that the connecting member 11 is connected to the long connecting rod 7 by bolts, which has good disassembly and assembly convenience.

[0046] In another embodiment of the present invention, the connecting rod 1101 is provided with external threads, and the inner walls of the grooves at both ends of the long connecting rod 7 are provided with internal threads, and the connecting rod 1101 can be connected to the grooves through threads.

[0047] Preferably, please refer to Figure 4 , 5 As shown, a bearing cover 17 is provided on the connecting section of the supporting shaft 10, and a bearing pressure cover 15 is provided on the end face of the connecting section of the supporting shaft 10. The bearing pressure cover 15 and the bearing cover 17 are located on both axial sides of the supporting bearing 13 and are used to axially limit the supporting bearing 13.

[0048] It can be understood that the supporting bearing 13 is installed in an axial limited direction by the bearing cover 15 and the bearing cover 17 on both sides. The installation position of the supporting bearing 13 can also be adjusted by adjusting the position of the bearing cover 15 and the bearing cover 17, and the position accuracy of each supporting bearing 13 can be corrected at any time to ensure the assembly accuracy with the long connecting rod 7 and improve the stability of the movement of the side support components 4 on both sides.

[0049] In another embodiment of the utility model, a round nut 14 is further provided on the support shaft 10 at one side of the support bearing 13 . The round nut 14 and the bearing cover 17 are located on both sides of the support bearing 13 to enhance the stable positioning of the support bearing 13 .

[0050] Preferably, please refer to Figure 4 As shown, locking members 18 are provided on the connecting sections at both ends of the support shaft 10, and the locking members 18 include locking nuts threadedly connected to the connecting sections and used to abut against the cross bracket 12. The locking members 18 on both ends of the support shaft 10 are used to limit the axial displacement of the support shaft 10 relative to the cross bracket 12.

[0051] It can be understood that the support shaft 10 is arranged through the cross bracket 12 and the two ends of the support shaft 10 are exposed. The locking members 18 are located at the two ends of the support shaft 10 and cooperate with the end surface of the cross bracket 12 to limit the axial position of the support shaft 10.

[0052] Preferably, please refer to Figure 2 , 3 As shown in FIG. 4 , the side support assembly 4 further includes a vertical support 8 disposed on the end of the horizontal support 12 , a plurality of the vertical supports 8 are disposed parallel to each other, and the horizontal support 12 is arranged vertically between two adjacent vertical supports 8 .

[0053] It can be understood that the vertical bracket 8 can strengthen the connection strength between the horizontal brackets 12, and the vertical bracket 8 can also play a role in supporting the screen body 1, which can reduce the impact load of the support shaft 10 and increase the service life of the moving parts.

[0054] Preferably, please refer to Figure 1 , 2 As shown in Figures 3 and 4, the top surface of the vertical bracket 8 and / or the uppermost horizontal bracket 12 is provided with a support 3, and the support 3 is used to connect with the screen body support ear 2 at the bottom of the screen body 1. The ground surface of the vertical bracket 8 and / or the lowermost horizontal bracket 12 is provided with a support ear 9, and the support ear 9 is used to connect with the base 6 of the rice-rough separator.

[0055] It can be understood that the support 3 and the support ear 9 can be arranged on the vertical bracket 8 and / or the horizontal bracket 12, wherein the support 3 and the support ear 9 can be installed through the mounting plate 16, the support 3 can cooperate with the screen body 1, and the support ear 9 can cooperate with the machine base 6, the support 3 and the support ear 9 can be a floating bearing connection method of a slip-on, which can accommodate relatively large manufacturing errors, installation errors, and wear errors, and run-in during operation, thereby improving the durability of the equipment.

[0056] Taking into account the durability of parts of high-volume models, the length of the support 3 and the support ear 9 can be increased accordingly, which can not only increase the contact area of ​​the support, but also improve the service life of the parts.

[0057] According to another aspect of the utility model, a grain-rough separator is also provided, comprising the above-mentioned supporting structure, and a pair of sieve bodies 1 symmetrically arranged on the left and right, wherein the pair of supporting structures are arranged one-to-one at the bottom of a pair of sieve bodies 1 and are used to support the sieve bodies 1, and the grain-rough separator also comprises a machine base 6, wherein the machine base 6 is provided with a pair of symmetrical inclined supporting frames 5 on the left and right, and the inclined supporting frames 5 are connected to the supporting structures one-to-one and support the supporting structures.

[0058] It should be noted that when the equipment is running, the screen bodies 1 on both sides are driven by the eccentric connecting rod mechanism, the oblique support frame 5 does not move, and the screen bodies 1 on both sides are supported on the support structure (cooperated with the support lug 2 of the screen body through the support 3), and swing back and forth relative to the oblique support frame 5. The motion trajectory of each screen body 1 is the same at all places, and the motion is synchronous and stable, which avoids the problem of the screen body 1 twisting, jumping upward or axial movement when the support structures on the left and right sides are not linked, and stabilizes the long-term stability of the grain and roughness separation effect of the screen body 1.

[0059] At the same time, the screen bodies 1 that move symmetrically on both sides of the whole machine are supported on the supporting structure, and a variable parallelogram is formed between the long connecting rod 7 of the supporting structure and the side supporting assembly 4, thereby achieving the stability of the deformation of the supporting structure, ensuring the stability of the movement trajectory of the screen bodies 1 on both sides, and also ensuring the consistency and stability of the movement and separation effects of the screen bodies 1 on both sides.

[0060] This article uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core ideas of the utility model. The above is only the preferred implementation method of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, ordinary technicians in this technical field can make several improvements, modifications or changes without departing from the principles of the utility model, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection of the utility model.

Claims

1. A support structure for supporting a screen body (1) of a rice-rough separator, characterized in that: It comprises a long connecting rod (7), a supporting shaft (10) and a pair of side supporting assemblies (4) which are symmetrically arranged on the left and right sides: The side support assembly (4) comprises a plurality of vertically parallel transverse brackets (12), and adjacent transverse brackets (12) are fixedly connected via connecting columns; The support shaft (10) is used to pass through the transverse bracket (12) and is rotatably arranged in the transverse bracket (12), and both ends of the support shaft (10) are provided with connecting sections exposed outside the transverse bracket (12); The long connecting rod (7) and the cross bracket (12) are arranged in a one-to-one correspondence, the first end of the long connecting rod (7) is hinged to the connecting section of the supporting shaft (10) in one of the side supporting assemblies (4), and the second end of the long connecting rod (7) is hinged to the connecting section of the corresponding supporting shaft (10) in the other side supporting assembly (4), thereby connecting a pair of the side supporting assemblies (4) into a whole through the long connecting rod (7).

2. A support structure according to claim 1, characterized in that: Support bearings (13) are arranged on the connecting sections at both ends of the support shaft (10), and connecting pieces (11) are arranged at both ends of the long connecting rod (7), and the connecting pieces (11) are connected to the support bearings (13).

3. A supporting structure according to claim 2, characterized in that: The connecting member (11) comprises a connecting rod (1101) and a connecting ring (1102); the connecting rod (1101) is connected to the long connecting rod (7); and the connecting ring (1102) is used for being fixedly sleeved on the supporting bearing (13).

4. A supporting structure according to claim 3, characterized in that: The long connecting rod (7) has grooves at both ends, the side walls of the grooves have first connecting holes, the connecting rod (1101) has second connecting holes, the connecting rod (1101) is inserted into the grooves and bolts are passed through the first connecting holes and the second connecting holes in sequence to connect and fix the connecting rod (1101) to the long connecting rod (7).

5. A supporting structure according to claim 2, characterized in that: A bearing cover (17) is arranged on the connecting section of the support shaft (10), and a bearing pressure cover (15) is arranged on the end surface of the connecting section of the support shaft (10). The bearing pressure cover (15) and the bearing cover (17) are located on both axial sides of the support bearing (13) and are used to axially limit the support bearing (13).

6. A supporting structure according to claim 1, characterized in that: The connecting sections at both ends of the support shaft (10) are provided with locking pieces (18), and the locking pieces (18) include locking nuts threadedly connected to the connecting sections and used to abut against the cross bracket (12). The locking pieces (18) at both ends of the support shaft (10) are used to limit the axial displacement of the support shaft (10) relative to the cross bracket (12).

7. A supporting structure according to claim 1, characterized in that: The side support assembly (4) further comprises a vertical support (8) arranged on the end of the horizontal support (12), a plurality of the vertical supports (8) are arranged in parallel with each other, and the horizontal support (12) is arranged between two adjacent vertical supports (8) in a vertical arrangement.

8. A supporting structure according to claim 7, characterized in that: A support (3) is provided on the top surface of the vertical support (8) and / or the uppermost horizontal support (12), and the support (3) is used to connect with the sieve body support ear (2) at the bottom of the sieve body (1).

9. A supporting structure according to claim 7, characterized in that: The ground of the vertical support (8) and / or the bottommost horizontal support (12) is provided with a support lug (9), and the support lug (9) is used to be connected to the base (6) of the grain-rough separator.

10. A rice-rough separator, characterized in that: It comprises a supporting structure as described in any one of claims 1 to 9, and a pair of sieve bodies (1) arranged symmetrically on the left and right, wherein the pair of supporting structures are arranged one-to-one at the bottom of the pair of sieve bodies (1) and are used to support the sieve bodies (1), and the rough grain separator also comprises a machine base (6), and the machine base (6) is provided with a pair of symmetrical inclined support frames (5), and the inclined support frames (5) are connected to the supporting structures one-to-one and support the supporting structures.

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