Mobile robot chassis mounting bracket and using method thereof

Abstract

The invention discloses a mobile robot chassis mounting bracket and a using method thereof, and relates to the technical field of automatic warehouse logistics, the mobile robot chassis mounting bracket comprises a chassis main body, a bracket main body is arranged above the chassis main body, and first adjusting plates are symmetrically mounted on the front and back of the bracket main body; second adjusting plates are symmetrically mounted on the two sides of the upper portion of the first adjusting plate, interval adjusting transmission mechanisms are arranged in the bracket body and the first adjusting plate, mounting grooves are formed in the second adjusting plates, inserting grooves are formed in the front and the back of each mounting groove, and a hopper mounting base is mounted in each mounting groove; inserting plates matched with the inserting grooves in an inserted mode are arranged on the front portion and the rear portion of the hopper installing base, auxiliary supporting mechanisms are installed at the four corners of the bracket body and used for supporting the installed bracket body, and the problems that a robot chassis bracket cannot be correspondingly adjusted according to the specification of a hopper, and the installing stability is poor are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of automated warehousing and logistics, and in particular to a mobile robot chassis mounting bracket and a method for using the bracket. Background Art

[0002] The mobile robot chassis mounting bracket is a connection device designed specifically for installing a hopper. It uses a frame structure made of high-strength materials (such as aluminum alloy or steel) to establish a stable connection between the chassis and the hopper. The preset mounting holes and slots on the frame precisely adapt to the hopper interface, and the hopper can be securely fixed on top of the chassis by bolting or locking with snaps.

[0003] For example, the Chinese authorized patent "A Transport Robot" with announcement number CN222082337U includes a vehicle body, which is equipped with a cargo picking and placing mechanism; the vehicle body includes a chassis and a fixed plate, the chassis includes a main plate and a sub-plate hinged to each other, and a connecting rod mechanism is provided between the main plate, the sub-plate and the fixed plate to reduce the inclination angle of the fixed plate when the main plate and the sub-plate rotate relative to each other; the cargo picking and placing mechanism is installed on the fixed plate.

[0004] Although the above-mentioned existing technology can realize the installation of the hopper, the chassis bracket needs to be replaced accordingly for hoppers of different specifications, which is not only time-consuming and labor-intensive, but also adds additional costs. Moreover, the installation method of the hopper and the bracket is less stable, and the hopper is prone to loosening. Therefore, it does not meet the existing needs. In this regard, we propose a mobile robot chassis mounting bracket and a method for using the same. Summary of the Invention

[0005] The object of the present invention is to provide a mobile robot chassis mounting bracket and a method for using the same, so as to solve the problems in the above-mentioned background technology that the robot chassis bracket cannot be adjusted according to the hopper specifications and has poor installation stability.

[0006] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: A mobile robot chassis mounting bracket, comprising a chassis body, a bracket body is provided above the chassis body, first adjustment plates are symmetrically installed at the front and rear of the bracket body, and the middle position of the bottom of the first adjustment plate is slidably limited with the first limiting grooves on the front and rear of the upper end surface of the bracket body, the front end of the bracket body is provided with a first adjustment bolt for adjusting the distance between the two first adjustment plates, second adjustment plates are symmetrically installed on both sides above the first adjustment plate, and the middle position of the bottom of the second adjustment plate is slidably limited with the second limiting grooves on both sides of the upper end surface of the first adjustment plate, one side of the second adjustment plate is provided with a second adjustment bolt for adjusting the distance between the two second adjustment plates, the interior of the bracket body and the first adjustment plate are both provided with a spacing adjustment transmission mechanism, the interior of the second adjustment plate is provided with a mounting groove, slots are opened at the front and rear of the mounting groove, a hopper mounting seat is installed inside the mounting groove, and plug-in plates that are plugged into the slots are provided at the front and rear of the hopper mounting seat, and auxiliary support mechanisms are installed at the four corners of the bracket body for supporting the installed bracket body.

[0007] Preferably, the spacing adjustment transmission mechanism includes a transmission chamber, a double-threaded transmission rod is rotatably installed inside the transmission chamber, and one end of the first adjustment bolt and the second adjustment bolt are respectively key-connected to the double-threaded transmission rod, and a sliding block with threaded matching is symmetrically installed on the outside of the double-threaded transmission rod, and the upper ends of the sliding blocks are respectively fixed to the first adjustment plate and the second adjustment plate.

[0008] Preferably, a gear is rotatably installed at the middle position inside the hopper mounting seat, and rack plates that are limited by the sliding position of the hopper mounting seat are respectively installed on both sides of the gear. The rack plate is meshed with the gear, and the outer end of the rack plate is fixed to the insert plate. A third adjusting bolt is rotatably installed on the upper end surface of the hopper mounting seat, and the shaft at the lower end of the third adjusting bolt is connected to the gear.

[0009] Preferably, positioning holes of the same diameter are provided on the front and rear of the upper end surface of the second adjustment plate and on both sides inside the plug plate, and positioning pins are provided on the front and rear of the upper portion of the second adjustment plate, and the positioning pins pass through the positioning holes.

[0010] Preferably, the auxiliary support mechanism includes a fixed seat, and the fixed seat is welded and fixed to the bracket body, a limiting slide groove is provided inside the fixed seat, a support column is slidably installed inside the limiting slide groove, a fourth adjusting bolt is rotatably installed at the middle position of the upper end surface of the fixed seat, a stud is fixedly installed at the lower end of the fourth adjusting bolt, the stud extends to the inside of the support column, and the external thread of the stud is adapted to the internal screw hole of the support column.

[0011] Preferably, guide rails are welded and fixed on both sides of the upper end surface of the chassis body, and positioning grooves are provided on both sides of the bottom of the bracket body, and the guide rails are slidably matched with the positioning grooves.

[0012] Preferably, suspension mechanisms are installed at the four corners of the bottom of the chassis body, and a driving wheel is installed on one side of the suspension mechanism.

[0013] Preferably, guide grooves are provided on both sides of the bracket body, the side plates of the first adjustment plate are wrapped around both sides of the bracket body, and the inner protrusions of the side plates of the first adjustment plate are slidably limited with the guide grooves.

[0014] Preferably, a rubber pad is adhered and fixed to the bottom of the support column.

[0015] The method for using the mobile robot chassis mounting bracket includes the following steps:

[0016] Step 1: First, connect the bracket body to the chassis body of the mobile robot: align the positioning grooves at the bottom of the bracket body with the guide rails on both sides of the upper end of the chassis body, push the bracket body along the guide rails to complete the initial docking, and use bolts from the side of the guide rails to lock the bracket body to the chassis body;

[0017] Step 2: Adjust the position of the hopper mounting base according to the hopper size. Turn the first adjusting bolt. Through the transmission mechanism composed of a double-threaded transmission rod and a sliding block inside the bracket body, the first adjusting bolt drives the double-threaded transmission rod to rotate, thereby generating friction with the screw hole in the sliding block. In conjunction with the guiding effect of the transmission cavity on the sliding block, the longitudinal spacing between the two first adjustment plates is adjusted.

[0018] Step 3: Turn the second adjusting bolt to adjust the horizontal distance between the two second adjusting plates through the transmission mechanism composed of a double-threaded transmission rod and a sliding block inside the first adjusting plate, thereby adjusting the position of the hopper mounting seat above the second adjusting plate;

[0019] Step 4: Place the hopper mounting seat into the mounting slot inside the second adjustment plate, turn the third adjusting bolt to drive the gear to rotate, and use the engagement of the gear with the rack plates on both sides to convert the rotational motion into linear motion, so that the plug-in plate at one end extends into the slots at the front and rear ends of the second adjustment plate mounting slot; insert the positioning pin from the top of the second adjustment plate and pass through the positioning hole of the hopper mounting seat to achieve the limited fixation of the plug-in plate;

[0020] Step 5. Turn the fourth adjusting bolt to rotate the stud inside the fixing seat. Under the friction between the external thread of the stud and the screw hole inside the support column, combined with the guiding effect of the limiting slide on the support column, the support column continues to extend downward until the support column contacts the chassis body.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The present invention installs a first adjusting plate symmetrically at the front and rear ends above the bracket body, and installs a second adjusting plate symmetrically on both sides above the first adjusting plate. By rotating the first adjusting bolt, the longitudinal spacing of the two first adjusting plates is adjusted through the transmission mechanism inside the bracket body. By rotating the second adjusting bolt, the lateral spacing of the two second adjusting plates is adjusted through the transmission mechanism inside the first adjusting plate. The transmission mechanism consists of a double-threaded transmission rod and a sliding block. The adjusting bolt can drive the double-threaded transmission rod to rotate, forming friction with the screw hole in the sliding block, and cooperating with the guiding effect of the transmission cavity on the sliding block, so that the sliding block drives the corresponding adjusting plates to move synchronously toward each other, thereby realizing the adjustment of the position of the hopper mounting seat above the second adjusting plate, thereby improving the versatility of the bracket, being able to adapt to the installation of hoppers of different sizes and specifications, avoiding the tediousness of replacing different brackets due to differences in hopper sizes, and reducing equipment procurement and maintenance costs.

[0023] 2. This invention provides a mounting slot within the second adjustment plate. After the hopper mount enters the slot, the third adjustment bolt is first rotated, driving the gear to rotate. The engagement between the gear and the rack plates on both sides converts the rotational motion into linear motion, allowing the insert plate at one end to extend into the slots at the front and rear ends of the second adjustment plate mounting slot. The user then inserts the positioning pin from the top of the second adjustment plate through the positioning hole of the hopper mount to limit the position of the insert plate. This dual fixation ensures the stability of the hopper mount, preventing the hopper from loosening even in bumpy conditions or during high-speed movement, thereby improving material transportation safety. In addition, this combined installation method is easy to operate and the installation and removal process is efficient, allowing users to quickly change different hoppers according to operational needs.

[0024] 3. The present invention provides auxiliary support mechanisms at the four corners of the bracket body and guide rails on both sides of the upper end of the chassis body. When installing the bracket body, it is only necessary to align the positioning grooves at the bottom with the guide rails, and push the bracket body after docking to achieve connection with the chassis body. The bracket body is locked from the side of the guide rails, and then the fourth adjusting bolt is rotated to drive the stud inside the fixing seat to rotate. Under the friction between its external thread and the screw hole in the support column, the supporting column is guided by the limiting slide groove to make the support column continue to extend downward until it contacts the chassis body, thereby enhancing the supporting strength and stability of the entire installation bracket, effectively dispersing the weight of the hopper and materials, and avoiding deformation of the bracket body due to uneven force. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A perspective view of the present invention;

[0026] Figure 2 is a side view of the present invention;

[0027] Figure 3 It is a front view of the present invention;

[0028] Figure 4 A three-dimensional diagram of the installation structure of the second adjustment plate and the hopper mounting seat of the present invention;

[0029] Figure 5 A top view of the present invention;

[0030] Figure 6 It is a schematic diagram of the internal structure of the auxiliary support mechanism of the present invention.

[0031] In the figure: 1. chassis body; 2. suspension mechanism; 3. driving wheel; 4. bracket body; 5. first adjusting plate; 6. second adjusting plate; 7. hopper mounting seat; 8. first adjusting bolt; 9. second adjusting bolt; 10. auxiliary support mechanism; 11. guide rail; 12. positioning groove; 13. first limiting groove; 14. guide groove; 15. second limiting groove; 16. transmission cavity; 17. double-threaded transmission rod; 18. sliding block; 19. third adjusting bolt; 20. positioning pin; 21. gear; 22. rack plate; 23. insert plate; 24. slot; 25. positioning hole; 26. fixing seat; 27. fourth adjusting bolt; 28. stud; 29. limiting slide groove; 30. support column. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0033] See also Figure 1-6 , the present invention provides an embodiment: a mobile robot chassis mounting bracket, including a chassis body 1, a bracket body 4 is arranged above the chassis body 1, and first adjustment plates 5 are symmetrically installed on the front and rear of the bracket body 4, and the middle position of the bottom of the first adjustment plate 5 is slidably limited with the first limiting groove 13 on the front and rear of the upper end surface of the bracket body 4, and the front end of the bracket body 4 is provided with a first adjusting bolt 8 for adjusting the distance between the two first adjustment plates 5, and second adjustment plates 6 are symmetrically installed on both sides above the first adjustment plate 5, and the middle position of the bottom of the second adjustment plate 6 is slidably limited with the second limiting grooves 13 on both sides of the upper end surface of the first adjustment plate 5. The limiting groove 15 is slidingly limited, and a second adjusting bolt 9 for adjusting the distance between the two second adjusting plates 6 is provided on one side of the second adjusting plate 6. A spacing adjustment transmission mechanism is provided inside the bracket body 4 and the first adjusting plate 5. The spacing adjustment transmission mechanism includes a transmission chamber 16. A double-threaded transmission rod 17 is rotatably installed inside the transmission chamber 16, and one end of the first adjusting bolt 8 and the second adjusting bolt 9 are respectively keyed to the double-threaded transmission rod 17. A sliding block 18 with a threaded fit is symmetrically installed on the outside of the double-threaded transmission rod 17, and the upper ends of the sliding blocks 18 are respectively fixed to the first adjusting plate 5 and the second adjusting plate 6;

[0034] Rotating the first adjusting bolt 8 or the second adjusting bolt 9 drives the double-threaded transmission rod 17 keyed thereto to rotate within the transmission chamber 16. The two threads on the double-threaded transmission rod 17, which rotate in opposite directions, cooperate with the screw holes in the sliding block 18, generating friction. Since the transmission chamber 16 guides the sliding block 18, restricting its movement to a specific direction, the sliding block 18 moves linearly along the double-threaded transmission rod 17, thereby driving the first adjustment plate 5 or the second adjustment plate 6 fixed thereto to move synchronously toward or away from each other, thereby adjusting the spacing between the two first adjustment plates 5 or the two second adjustment plates 6. Through this transmission mechanism of the double-threaded transmission rod and the sliding block, the spacing between the first adjustment plates 5 and the second adjustment plates 6 can be accurately and stably adjusted, thereby flexibly adjusting the position of the hopper mounting base 7, making the mounting bracket adaptable to hoppers of different sizes.

[0035] See also Figure 1 、 Figure 4 and Figure 5 , a mounting groove is provided inside the second adjusting plate 6, and a slot 24 is provided at the front and rear of the mounting groove. A hopper mounting seat 7 is installed inside the mounting groove. A plug-in plate 23 that is plugged into the slot 24 is provided at the front and rear of the hopper mounting seat 7. A gear 21 is rotatably installed at the middle position inside the hopper mounting seat 7. Rack plates 22 that are slidably limited with the hopper mounting seat 7 are respectively installed on both sides of the gear 21. The rack plate 22 is meshed with the gear 21, and the outer end of the rack plate 22 is fixed to the plug-in plate 23. A third adjusting bolt 19 is rotatably installed on the upper end surface of the hopper mounting seat 7, and the shaft at the lower end of the third adjusting bolt 19 is connected to the gear 21. Positioning holes 25 of the same diameter are provided on the front and rear of the upper end surface of the second adjusting plate 6 and on both sides of the inside of the plug-in plate 23. Positioning pins 20 are provided at the front and rear of the top of the second adjusting plate 6, and the positioning pins 20 pass through the positioning holes 25;

[0036] Rotating the third adjusting bolt 19 drives the gear 21 connected thereto to rotate within the hopper mounting base 7. Since the gear 21 meshes with the rack plates 22 on both sides, according to the gear-rack transmission principle, the rotational motion of the gear 21 is converted into the linear motion of the rack plate 22. The outer end of the rack plate 22 is fixed to the insert plate 23, so the insert plate 23 moves synchronously with the rack plate 22 and extends into the slots 24 at the front and rear ends of the mounting groove of the second adjustment plate 6, thereby achieving the initial fixation of the hopper mounting base 7 and the second adjustment plate 6. Then, the positioning pin 20 is inserted from the top of the second adjustment plate 6, passing through the positioning holes 25 of the hopper mounting base 7 and the insert plate 23, limiting the insert plate 23 to prevent it from loosening or shifting, thus completing the secure installation of the hopper mounting base 7. The installation and fixing method of the gear rack, the insert plate, and the positioning pin is simple in structure, stable and reliable, and can achieve fast and accurate locking of the hopper mounting base 7. The rack and pinion transmission has high transmission accuracy and stability, which can ensure that the insert plate 23 is smoothly extended and tightly embedded in the slot 24 to form a stable mechanical connection; the secondary limit of the positioning pin further enhances the fixing effect, and even if the mobile robot encounters bumps, vibrations, etc. during operation, it can effectively prevent the hopper mounting seat 7 from loosening or falling off.

[0037] See also Figure 1 、 Figure 2 and Figure 6 , auxiliary support mechanisms 10 are installed at the four corners of the bracket body 4 for supporting the bracket body 4 after installation, and the auxiliary support mechanism 10 includes a fixing seat 26, and the fixing seat 26 is welded and fixed to the bracket body 4, and a limiting slide groove 29 is provided inside the fixing seat 26, and a support column 30 is slidably installed inside the limiting slide groove 29, and a fourth adjusting bolt 27 is rotatably installed at the middle position of the upper end surface of the fixing seat 26, and a stud 28 is fixedly installed at the lower end of the fourth adjusting bolt 27, and the stud 28 extends to the inside of the support column 30, and the external thread of the stud 28 is adapted to the internal screw hole of the support column 30, and a rubber pad is adhered and fixed to the bottom of the support column 30;

[0038] Rotating the fourth adjusting bolt 27 causes the stud 28, which is fixed to it, to rotate synchronously. Because the external thread of stud 28 mates with the internal threaded hole of support column 30, according to the principle of screw transmission, the rotational motion of stud 28 is converted into linear motion of support column 30. Furthermore, because the limiting chute 29 guides support column 30, restricting its movement to the vertical direction, support column 30 continues to extend downward within the limiting chute 29 until the rubber pad at the bottom of support column 30 contacts the chassis body 1. The fourth adjusting bolt 27 can then be further adjusted as needed to adjust the support strength of support column 30. The auxiliary support mechanism 10, through the adjustable support column 30, can flexibly adjust the support height and support strength of the bracket body 4 according to actual usage requirements, thereby enhancing the support strength and stability of the entire mounting bracket. When the bracket body 4 is carrying a heavy hopper and material, the support column 30 effectively distributes the weight, preventing deformation or damage to the bracket body 4 due to uneven force.

[0039] See also Figure 1 and Figure 3 Guide rails 11 are welded and fixed on both sides of the upper end surface of the chassis body 1, and positioning grooves 12 are provided on both sides of the bottom of the bracket body 4, and the guide rails 11 slide in conjunction with the positioning grooves 12. The sliding fit design of the guide rails 11 and the positioning grooves 12 greatly simplifies the installation process of the bracket body 4 and the chassis body 1. There is no need for complicated calibration and positioning operations. The initial installation can be completed by simple alignment and sliding, which significantly improves the assembly efficiency and reduces the difficulty of manual operation and the installation time cost.

[0040] See also Figure 1 The four corners of the bottom of the chassis body 1 are equipped with suspension mechanisms 2, and driving wheels 3 are installed on one side of the suspension mechanism 2. The driving wheels 3 rotate under the drive of a power device such as a motor, providing power for the mobile robot to move forward, backward, turn, etc.; the suspension mechanism 2 connects the chassis body 1 and the driving wheels 3, and absorbs the vibration and impact caused by uneven ground through its own elastic elements and connecting rod mechanism.

[0041] See also Figure 1 , guide grooves 14 are provided on both sides of the bracket body 4, and the side panels of the first adjustment plate 5 are wrapped around both sides of the bracket body 4, and the inner protrusions of the side panels of the first adjustment plate 5 are slidingly limited with the guide grooves 14. The sliding limiting structure of the guide grooves 14 and the inner protrusions of the side panels of the first adjustment plate 5 provides precise guidance for the movement of the first adjustment plate 5, effectively preventing the first adjustment plate 5 from deflecting, tilting or shaking during the adjustment process, and ensuring that the first adjustment plate 5 can move in a predetermined direction and trajectory.

[0042] The method for using the mobile robot chassis mounting bracket includes the following steps:

[0043] Step 1: First, connect the bracket body 4 to the chassis body 1 of the mobile robot: align the positioning grooves 12 at the bottom of the bracket body 4 with the guide rails 11 on both sides of the upper end of the chassis body 1, push the bracket body 4 along the guide rails 11 to complete the initial docking, and use bolts from the side of the guide rails 11 to lock the bracket body 4 to the chassis body 1;

[0044] Step 2: Adjust the position of the hopper mounting base 7 according to the hopper size, rotate the first adjusting bolt 8, and use the first adjusting bolt 8 to drive the double-threaded transmission rod 17 to rotate through the transmission mechanism composed of the double-threaded transmission rod 17 and the sliding block 18 inside the bracket body 4, thereby generating friction with the screw hole in the sliding block 18, and cooperating with the guiding effect of the transmission cavity 16 on the sliding block 18 to adjust the longitudinal distance between the two first adjustment plates 5;

[0045] Step 3: Turn the second adjusting bolt 9 to adjust the lateral distance between the two second adjusting plates 6 through the transmission mechanism composed of the double-threaded transmission rod 17 and the sliding block 18 inside the first adjusting plate 5, thereby adjusting the position of the hopper mounting seat 7 above the second adjusting plate 6;

[0046] Step 4: Place the hopper mounting seat 7 into the mounting groove inside the second adjustment plate 6, turn the third adjusting bolt 19 to drive the gear 21 to rotate, and use the engagement of the gear 21 with the rack plates 22 on both sides to convert the rotary motion into linear motion, so that the insert plate 23 at one end extends to the slots 24 at the front and rear ends of the mounting groove of the second adjustment plate 6; insert the positioning pin 20 from the top of the second adjustment plate 6 and pass through the positioning hole 25 of the hopper mounting seat 7 to achieve the limited fixation of the insert plate 23;

[0047] Step 5. Turn the fourth adjusting bolt 27 to drive the stud 28 inside the fixing seat 26 to rotate. Under the friction between the external thread of the stud 28 and the screw hole inside the support column 30, combined with the guiding effect of the limiting slide groove 29 on the support column 30, the support column 30 continues to extend downward until the support column 30 contacts the chassis body 1.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A mobile robot chassis mounting bracket, comprising a chassis body (1), characterized in that: A bracket body (4) is provided above the chassis body (1), and first adjustment plates (5) are symmetrically installed at the front and rear of the bracket body (4), and the middle position of the bottom of the first adjustment plate (5) is slidably limited with the first limiting grooves (13) on the front and rear of the upper end surface of the bracket body (4), and the front end of the bracket body (4) is provided with a first adjustment bolt (8) for adjusting the distance between the two first adjustment plates (5), and second adjustment plates (6) are symmetrically installed on both sides above the first adjustment plate (5), and the middle position of the bottom of the second adjustment plate (6) is slidably limited with the second limiting grooves (15) on both sides of the upper end surface of the first adjustment plate (5). A second adjusting bolt (9) for adjusting the distance between the two second adjusting plates (6) is provided on one side of the second adjusting plate (6); a distance adjusting transmission mechanism is provided inside the bracket body (4) and the first adjusting plate (5); a mounting groove is provided inside the second adjusting plate (6); slots (24) are provided at the front and rear of the mounting groove; a hopper mounting seat (7) is installed inside the mounting groove; plug plates (23) that are plugged into the slots (24) are provided at the front and rear of the hopper mounting seat (7); auxiliary support mechanisms (10) are installed at the four corners of the bracket body (4) for supporting the bracket body (4) after installation.

2. The mobile robot chassis mounting bracket according to claim 1, characterized in that: The spacing adjustment transmission mechanism includes a transmission chamber (16), a double-threaded transmission rod (17) is rotatably installed inside the transmission chamber (16), and one end of the first adjustment bolt (8) and the second adjustment bolt (9) are respectively key-connected with the double-threaded transmission rod (17), and a sliding block (18) with threaded matching is symmetrically installed on the outside of the double-threaded transmission rod (17), and the upper end of the sliding block (18) is respectively fixed to the first adjustment plate (5) and the second adjustment plate (6).

3. The mobile robot chassis mounting bracket according to claim 2, characterized in that: A gear (21) is rotatably mounted at a middle position inside the hopper mounting seat (7), and rack plates (22) are respectively mounted on both sides of the gear (21) and are slidably limited with the hopper mounting seat (7). The rack plate (22) is meshed with the gear (21), and the outer end of the rack plate (22) is fixed to the insert plate (23). A third adjusting bolt (19) is rotatably mounted on the upper end surface of the hopper mounting seat (7), and the shaft at the lower end of the third adjusting bolt (19) is connected to the gear (21).

4. The mobile robot chassis mounting bracket according to claim 3, characterized in that: Positioning holes (25) of the same diameter are provided at the front and rear ends of the upper end surface of the second adjustment plate (6) and at both sides inside the inserting plate (23). Positioning pins (20) are provided at the front and rear ends above the second adjustment plate (6), and the positioning pins (20) pass through the positioning holes (25).

5. The mobile robot chassis mounting bracket according to claim 4, characterized in that: The auxiliary support mechanism (10) includes a fixed seat (26), and the fixed seat (26) is welded and fixed to the bracket body (4), a limiting slide groove (29) is provided inside the fixed seat (26), a support column (30) is slidably installed inside the limiting slide groove (29), a fourth adjusting bolt (27) is rotatably installed at the middle position of the upper end surface of the fixed seat (26), a stud (28) is fixedly installed at the lower end of the fourth adjusting bolt (27), the stud (28) extends to the inside of the support column (30), and the external thread of the stud (28) and the internal screw hole of the support column (30) are like a quota.

6. The mobile robot chassis mounting bracket according to claim 5, characterized in that: Guide rails (11) are welded and fixed on both sides of the upper end surface of the chassis body (1), and positioning grooves (12) are provided on both sides of the bottom of the bracket body (4), and the guide rails (11) and the positioning grooves (12) are slidably matched.

7. The mobile robot chassis mounting bracket according to claim 1, characterized in that: Suspension mechanisms (2) are installed at the four corners of the bottom of the chassis body (1), and a driving wheel (3) is installed on one side of the suspension mechanism (2).

8. The mobile robot chassis mounting bracket according to claim 1, characterized in that: Guide grooves (14) are provided on both sides of the bracket body (4), the side plates of the first adjustment plate (5) are wrapped around both sides of the bracket body (4), and the inner protrusions of the side plates of the first adjustment plate (5) are slidably limited with the guide grooves (14).

9. The mobile robot chassis mounting bracket according to claim 5, characterized in that: A rubber pad is adhesively fixed to the bottom of the support column (30).

10. The method for using the mobile robot chassis mounting bracket according to claim 9, characterized in that: The steps include: Step 1: First, connect the bracket body (4) to the chassis body (1) of the mobile robot: align the positioning groove (12) at the bottom of the bracket body (4) with the guide rails (11) on both sides of the upper end of the chassis body (1), push the bracket body (4) along the guide rails (11) to complete the initial docking, and use bolts from the side of the guide rails (11) to lock the bracket body (4) to the chassis body (1); Step 2: According to the size of the hopper, the position of the hopper mounting seat (7) is adjusted, and the first adjusting bolt (8) is rotated. Through the transmission mechanism composed of the double-threaded transmission rod (17) and the sliding block (18) inside the bracket body (4), the first adjusting bolt (8) is used to drive the double-threaded transmission rod (17) to rotate, thereby generating friction with the inner screw hole of the sliding block (18), and cooperating with the guiding effect of the transmission cavity (16) on the sliding block (18), the longitudinal spacing between the two first adjustment plates (5) is adjusted; Step 3: Turn the second adjusting bolt (9) to adjust the lateral spacing between the two second adjusting plates (6) through the transmission mechanism inside the first adjusting plate (5) which is also composed of a double-threaded transmission rod (17) and a sliding block (18), thereby adjusting the position of the hopper mounting seat (7) above the second adjusting plate (6); Step 4: Place the hopper mounting seat (7) into the mounting groove inside the second adjustment plate (6), rotate the third adjustment bolt (19) to drive the gear (21) to rotate, and use the engagement of the gear (21) with the rack plates (22) on both sides to convert the rotary motion into a linear motion, so that the plug plate (23) at one end extends to the slots (24) at the front and rear ends of the mounting groove of the second adjustment plate (6); insert the positioning pin (20) from the top of the second adjustment plate (6) and pass through the positioning hole (25) of the hopper mounting seat (7) to achieve the limited fixation of the plug plate (23); Step 5: Turn the fourth adjusting bolt (27) to drive the stud (28) inside the fixing seat (26) to rotate. Under the friction between the external thread of the stud (28) and the internal screw hole of the support column (30), the support column (30) is guided by the limiting slide groove (29) to continuously extend downward until the support column (30) contacts the chassis body (1).

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