Material receiving device
By designing a feeding device that can rotate about the shaft, the problem of fixed ash conveying device hindering underground passage in deep vertical shaft construction is solved, and the freedom of movement of operators and the smooth passage of rising channels is achieved, cost is reduced and construction efficiency is improved .
Patent Information
- Application Number
- CN202421360410.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-14
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-14
AI Technical Summary
The existing fixed ash conveying device can easily hinder downhole passage during deep vertical shaft construction, limit the movement space of operators and hinder the smooth flow of the ascending passage.
A feeding device is designed, and the feeding hopper can rotate about an upright rotating shaft, allowing the feeding hopper to adjust its position as needed, ensuring that the movement of the operator is not limited, and keeping the downhole upward passage unobstructed.
The rapid circumferential adjustment of the feeding device is realized, the installation process is simplified, the structure stability and operation convenience are ensured, the cost is reduced, and the problem of obstruction of the fixed feeding device to underground traffic is effectively solved.
Smart Images
Figure CN222453806U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of shaft construction equipment, in particular to a material receiving device. Background Art
[0002] Generally speaking, shafts with a depth of less than 300 meters are considered shallow, those between 300 and 600 meters are medium-deep, those between 600 and 1,000 meters are deep, and those over 1,000 meters are ultra-deep. During shaft construction, the shaft walls must be supported with shotcrete during continuous excavation. During the construction of deep (or ultra-deep) shafts, the existing method of transporting concrete is to transport the concrete required for concrete production via a bottom-discharge bucket along a bell-shaped channel to the bottom platform. From the bottom platform (or lower platform), the concrete is then transported to an underground mixer for mixing. From the bottom platform, the concrete is then transported to the underground mixer. There are generally two commonly used methods. One conveying method is to directly use a hopper for transmission. In this transmission method, the receiving port of the hopper is set at the bell-mouth position to receive the ash delivered by the bottom-discharge bucket. The transmitted ash is transported downward along the receiving hopper to the discharge port of the hopper. The discharge port is set above the mixer, so that the ash can be directly transported to the mixer to complete the mixing of concrete; the other conveying method is to transmit through a separate transmission pipe. The receiving port of the separate pipe is set below the bell-mouth, and the discharge port is divided into two and set above the mixer. The separate pipe receives the ash delivered from the bottom-discharge bucket at the receiving port, and then divides the ash into two from the pipe, and transports it to the mixer.
[0003] Both of these methods of conveying ash materials use fixed structures and cannot be moved once installed. However, under actual working conditions, underground workers usually have to move on the bottom platform when working, or rise to the ground through the trumpet mouth in a manned bucket. The fixed ash conveying device often restricts the movement of workers and blocks the ascending channel, which not only affects underground construction, but also prevents workers from using the ascending channel to return to the ground. Especially when cooperating with the construction of a full-section vertical shaft boring machine, the fixed material receiving device seriously affects the normal passage of the material channel. Utility Model Content
[0004] In order to solve the problem that the above-mentioned fixed ash material conveying device easily obstructs underground passage, the utility model provides a material receiving device, in which the material receiving hopper can rotate around a vertical rotating shaft, and the position of the material receiving hopper can be adjusted as needed, so that the movement of the operating personnel is no longer restricted, and the underground ascending channel can be kept unobstructed at all times.
[0005] The technical solution adopted by the utility model to solve its technical problems is:
[0006] A material receiving device includes a material receiving hopper, a connecting seat, a rotating shaft and a base arranged in sequence from top to bottom. The material receiving hopper contains a material receiving area and a material discharge port. The material discharge port and the material receiving area are arranged on the left and right. The rotating shaft is in an upright state. The material receiving hopper and the connecting seat can both rotate around the rotating shaft.
[0007] The receiving hopper is a curved plate-like structure with a receiving space provided therein. The receiving hopper extends in the left-right direction. The cross section of the receiving hopper is an arc with an upward opening, and the discharge port is lower than the receiving area.
[0008] The connecting seat comprises an upper supporting vertical plate, a middle connecting plate and a lower connecting ear plate which are sequentially connected from top to bottom, and the receiving hopper is fixedly connected to the upper supporting vertical plate.
[0009] The material receiving device also includes a bracket, which includes a front frame rod, an upper frame rod and a rear frame rod connected in sequence from front to rear, the upper frame rod is located above the material receiving hopper, the lower end of the upper front frame rod and the lower end of the rear frame rod are both connected and fixed to the middle connecting plate, the upper end of the front frame rod is connected to the material receiving hopper through the front connecting rod, and the upper end of the rear frame rod is connected to the material receiving hopper through the rear connecting rod.
[0010] The material receiving device also includes an extended bucket, which is located outside the discharge port of the material receiving hopper. The extended bucket is a curved plate-like structure. A accommodating space is provided inside the extended bucket. The extended bucket extends in the left and right directions. The extended bucket is connected to the material receiving hopper through a first pin shaft. The first pin shaft is located above the extended bucket. The first pin shaft extends in the front and back directions. There is a distance between the extended bucket and the material receiving hopper, and the extended bucket can rotate around the first pin shaft.
[0011] The material receiving device also includes a rotating shaft seat, which includes a first ear plate and a bottom plate connected and fixed up and down. The lower connecting ear plate is connected to the first ear plate through a second pin shaft. The two second pin shafts are arranged at intervals on the left and right. The upper end of the rotating shaft is connected and fixed to the lower surface of the bottom plate.
[0012] The upper end of the base contains a limit plate, and the bottom plate and the limit plate are stacked up and down, and the axis of the bottom plate, the axis of the limit plate and the axis of the rotating shaft coincide with each other. The edge of the limit plate is provided with multiple positioning grooves, and the multiple positioning grooves are evenly spaced along the circumference of the limit plate. A stop groove and two second ear plates are provided on the edge of the bottom plate, and the stop groove is located between the two second ear plates. The two second ear plates are connected to a gear lever through a third pin shaft, and the gear lever can rotate around the third pin shaft; when the gear lever is located in the stop groove and the positioning groove, the material receiving hopper, the connecting seat and the rotating shaft seat cannot rotate around the rotating shaft; when the gear lever is located outside the stop groove and the positioning groove, the material receiving hopper, the connecting seat and the rotating shaft seat can rotate around the rotating shaft.
[0013] The base includes a sleeve and a base connected in sequence. The sleeve is in an upright state. The rotating shaft is sleeved in the sleeve. An upper sliding bearing and a lower sliding bearing are sleeved between the rotating shaft and the sleeve. The upper sliding bearing and the lower sliding bearing are spaced apart.
[0014] The lower end of the rotating shaft is located outside the sleeve, and the lower end of the rotating shaft is connected with a cotter pin, which can prevent the rotating shaft from separating from the sleeve.
[0015] The base is fixed to the outside of the sleeve and contains two supporting vertical plates. The two supporting vertical plates are perpendicular to each other and are provided with notch grooves. The head and tail ends of the cotter pin can pass through the notch grooves.
[0016] The beneficial effects of the present invention are as follows: the receiving hopper can be quickly adjusted circumferentially, no bolt connection is required, the installation is simple, the structure is stable, the operation is convenient, the cost is low, and a simple mechanical structure is adopted to avoid the use of electrical equipment. For deep well construction, it not only reduces the safety hazards of using electrical equipment underground, but also saves the material cost and labor cost of laying circuits, and can effectively solve the problem that the receiving device restricts the operating space and the ascending channel of the workers. While ensuring construction efficiency, it also clears obstacles for the ascending channel of deep well workers. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] The drawings in the specification, which constitute 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.
[0018] Figure 1 It is a main schematic view of the material receiving device described in the utility model.
[0019] Figure 2 It is a left side schematic diagram of the material receiving device of the present invention.
[0020] Figure 3 It is a top view schematic diagram of the material receiving device of the present invention.
[0021] Figure 4 It is a three-dimensional schematic diagram of the hopper part.
[0022] Figure 5 It is along Figure 1 Schematic cross-sectional view in the BB direction.
[0023] Figure 6 It is a three-dimensional schematic diagram of the bracket.
[0024] Figure 7 It is a cross-sectional schematic diagram of the shaft part.
[0025] Figure 8 It is a top view schematic diagram of the shaft seat.
[0026] Figure 9 Schematic diagram of the top view of the limit plate.
[0027] Figure 10 It is a schematic diagram of the working state of the material receiving device described in the utility model.
[0028] 1. Loading hopper; 2. Extended hopper; 3. Support; 4. Connecting seat; 5. Rotating shaft; 6. Rotating shaft seat; 7. Shift lever; 8. Base; 9. Loading device; 10. Lower platform; 11. Concrete spraying machine; 12. Upper platform; 13. Bottom-dumping bucket.
[0029] 101. Loading area; 102. Discharge port.
[0030] 201. First pin shaft.
[0031] 301. Front frame rod; 302. Upper frame rod; 303. Rear frame rod; 304. Front connecting rod; 305. Rear connecting rod.
[0032] 401. Upper support vertical plate; 402. Intermediate connecting plate; 403. Lower connecting ear plate.
[0033] 501. Split pin.
[0034] 601. First ear plate; 602. Second ear plate; 603. Bottom plate; 604. Second pin shaft; 605. Stopping groove; 606. Third pin shaft.
[0035] 801. Limiting disc; 802. Positioning groove; 803. Sleeve; 804. Base; 805. Upper sliding bearing; 806. Lower sliding bearing; 807. Support vertical plate; 808. Notch groove. Detailed implementation mode
[0036] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will refer to the drawings and combine with the embodiments to detail the present invention.
[0037] For the convenience of understanding and description, an absolute positional relationship is adopted in the following description of the present invention. Without special explanation, the orientation word "upper" represents Figure 1 the upper side direction in Figure 1 the orientation word "lower" represents Figure 1 the lower side direction in Figure 1 the orientation word "left" represents Figure 1 the left side direction in Figure 1 the orientation word "right" represents
[0038] the right side direction in Figures 1 to 4 the orientation word "front" represents the direction perpendicular to the paper surface of
[0039] and pointing to the inner side of the paper surface, the orientation word "rear" represents the direction perpendicular to the paper surface of
[0040] and pointing to the outer side of the paper surface. The present invention is described from the observation perspective of the reader or user, but the above orientation words cannot be understood or interpreted as limiting the protection scope of the present invention. Regarding the dimensions and other parameters of the components therein, those skilled in the art can specifically determine them according to actual needs. Figures 3 and 4 Such as Figures 1 to 4 As shown, a material receiving device described in an embodiment of the present invention includes a material receiving hopper 1, a connecting seat 4, a rotating shaft 5 and a base 8 arranged in sequence from top to bottom. The material receiving hopper 1 contains a material receiving area 101 and a discharge port 102. The discharge port 102 and the material receiving area 101 are arranged on the left and right. The rotating shaft 5 is in an upright state. The material receiving hopper 1 and the connecting seat 4 can both rotate around the rotating shaft 5.
[0039] In the material receiving device, the receiving hopper 1 extends in the left-right direction, and the rotating shaft 5 is located between the discharge port 102 and the receiving area 101 in the left-right direction. The distance from the discharge port 102 to the rotating shaft 5 is smaller than the distance from the receiving area 101 to the rotating shaft 5. The receiving hopper 1 can rotate about the axis of the rotating shaft 5, and the rotation position of the receiving hopper 1 can be adjusted as needed, so that the movement of the operator is not restricted and the ascending channel is kept unobstructed at all times.
[0040] like Figures 3 and 4 As shown, the receiving hopper 1 is made of metal and has a curved plate-like structure, that is, the receiving hopper 1 is formed by bending a metal plate. The receiving hopper 1 is provided with a receiving space. The receiving hopper 1 extends in the left-right direction. The cross-section of the receiving hopper 1 is an arc-shaped with the opening facing upward. The receiving hopper 1 is tilted, and the lower end of the discharge port 102 is lower than the receiving area 101.
[0041] The discharge port 102 is located at the left end of the hopper 1, and the receiving area 101 is located on the right side of the hopper 1. The upper end and left end of the hopper 1 are open, and the right end of the hopper 1 is closed. The cross-sectional area of the receiving space in the hopper 1 gradually decreases along the direction from the receiving area 101 to the discharge port 102.
[0042] like Figure 5 As shown, the connecting base 4 includes an upper supporting plate 401, an intermediate connecting plate 402, and a lower connecting lug plate 403, which are connected in sequence from top to bottom. The upper supporting plate 401, the intermediate connecting plate 402, and the lower connecting lug plate 403 are connected (e.g., welded) and fixed as a whole. The two upper supporting plates 401 are spaced apart from each other, and the two upright lower connecting lug plates 403 are spaced apart from each other from front to back. The receiving hopper 1 is connected (e.g., welded) and fixed to the upper supporting plates 401.
[0043] like Figures 1 to 3 、 Figure 6 As shown, the material receiving device also includes a bracket 3, which includes a front frame rod 301, an upper frame rod 302 and a rear frame rod 303 connected in sequence from front to back, the upper frame rod 302 is located above the material receiving hopper 1, the lower end of the front frame rod 301 and the lower end of the rear frame rod 303 are both connected and fixed to the middle connecting plate 402, the upper end of the front frame rod 301 is connected to the material receiving hopper 1 through the front connecting rod 304, and the upper end of the rear frame rod 303 is connected to the material receiving hopper 1 through the rear connecting rod 305.
[0044] The front and rear rack bars 301 and 303 are symmetrical and mirror images of each other. Both are tilted, with the upper end of the front rack bar 301 connected to the front end of the upper rack bar 302, and the upper end of the rear rack bar 303 connected to the rear end of the upper rack bar 302. The front connecting rod 304 and the rear connecting rod 305 are symmetrical and mirror images of each other. Both are roughly horizontal, with the right ends of the front and rear connecting rods 304 and 305 corresponding to the material receiving area 101.
[0045] The function of the bracket 3 is to strengthen the receiving hopper 1 and adjust its center of gravity. The right ends of the front connecting rod 304 and the rear connecting rod 305 are both located directly above the receiving area 101, preventing the ash from impacting the receiving area 101 during discharge and causing the receiving hopper 1 to bend downward. The receiving hopper 1, bracket 3, and connecting base 4 are connected as a whole. Preferably, the center of gravity of the hopper 1, bracket 3, and connecting base 4 is located on the axis of the rotating shaft 5 to prevent uneven wear of the rotating shaft 5.
[0046] like Figures 1 to 3 As shown, the material receiving device also includes an extended bucket 2, which is located outside the discharge port 102 of the material receiving hopper 1. The extended bucket 2 is a curved plate-like structure, and a accommodating space is provided inside the extended bucket 2. The extended bucket 2 extends in the left and right directions, and the extended bucket 2 is directly or indirectly connected to the material receiving hopper 1 through a first pin shaft 201. The first pin shaft 201 is located above the extended bucket 2, and the first pin shaft 201 extends in the front and rear directions.
[0047] The extended bucket 2 is in an inclined state, the left end of the extended bucket 2 is lower than the right end of the extended bucket 2, the receiving hopper 1 and the extended bucket 2 are stacked up and down, and there is a distance between the extended bucket 2 and the receiving hopper 1. The extended bucket 2 can rotate around the first pin shaft 201. The ash material is unloaded into the receiving area 101 and then enters the extended bucket 2 from the discharge port 102, and then slides out of the extended bucket 2 from the left end of the extended bucket 2. The left end of the extended bucket 2 can swing up and down, thereby realizing discharging at different heights.
[0048] like Figures 7 and 8 As shown, the material receiving device also includes a rotating shaft seat 6, which contains a first ear plate 601 and a bottom plate 603 that are connected and fixed up and down (such as welded), and the bottom plate 603 is in a horizontal state. The two upright first ear plates 601 are arranged at intervals in front and back, and a reinforcing rib plate is connected between the two first ear plates 601. The two first ear plates 601 are located between the two lower connecting ear plates 403, and the lower connecting ear plates 403 are connected to the first ear plates 601 through a second pin shaft 604. The two second pin shafts 604 are arranged at intervals in the left and right, and the second pin shaft 604 extends in the front and back direction. The upper end of the rotating shaft 5 is connected and fixed to the lower surface of the bottom plate 603 (such as welded).
[0049] The upper end of the base 8 contains a limit plate 801, which is in a horizontal state. The bottom plate 603 and the limit plate 801 are stacked and connected up and down. The bottom plate 603 is supported by the limit plate 801. The axis of the bottom plate 603, the axis of the limit plate 801 and the axis of the rotating shaft 5 coincide. The bottom plate 603 is a circular plate, and the limit plate 801 is a circular ring plate.
[0050] like Figures 7 to 9 As shown, in order to ensure that the receiving hopper 1 can be fixed after rotating to the desired position, the edge (periphery) of the limiting plate 801 is provided with multiple positioning grooves 802, which are evenly spaced along the circumference of the limiting plate 801. The edge of the bottom plate 603 is provided with a stop groove 605 and two second lugs 602. The two upright second lugs 602 are fixed to the upper surface of the bottom plate 603. The two second lugs 602 are spaced apart along the circumference of the bottom plate 603. The stop groove 605 is located between the two second lugs 602, and the distance between the two second lugs 602 is slightly greater than the width of the stop groove 605. The two second lugs 602 are connected to the shift lever 7 via a third pin 606. The third pin 606 extends in the front-to-back direction. The shift lever 7 can rotate around the third pin 606, and the stop groove 605 can correspond to one of the multiple positioning grooves 802.
[0051] The shape and size of the retaining groove 605 and the positioning groove 802 are substantially the same, and the outer diameter of the limiting plate 801 is substantially the same as the outer diameter of the base plate 603. When the lever 7 is located within the retaining groove 605 and one of the positioning grooves 802, the lever 7 is in an upright position, and the hopper 1, the connecting seat 4, and the rotating shaft seat 6 are unable to rotate about the rotating shaft 5. When the lever 7 is located outside the retaining groove 605 and the positioning groove 802, the lever 7 can be in a horizontal or upright position, and the hopper 1, the connecting seat 4, and the rotating shaft seat 6 are able to rotate about the rotating shaft 5.
[0052] like Figure 1 and Figure 7 As shown, the base 8 also includes a sleeve 803 and a base 804 connected in sequence. The sleeve 803 is in an upright state. The limit plate 801 is welded and fixed to the outer upper end of the sleeve 803. The axis of the limit plate 801 coincides with the axis of the sleeve 803. The rotating shaft 5 is sleeved in the sleeve 803. The rotating shaft 5 is a cylindrical structure. An upper sliding bearing 805 and a lower sliding bearing 806 are sleeved between the rotating shaft 5 and the sleeve 803. The upper sliding bearing 805 and the lower sliding bearing 806 are spaced apart from each other.
[0053] In order to prevent the rotating shaft 5 from separating from the base 8, the lower end of the rotating shaft 5 is located outside the sleeve 803, and a pin hole is provided at the lower end of the rotating shaft 5. The lower end of the rotating shaft 5 is connected with a cotter pin 501, and the cotter pin 501 passes through the pin hole. The head and tail ends of the cotter pin 501 are both located outside the pin hole. The length of the cotter pin 501 is greater than the inner diameter of the sleeve 803. The cotter pin 501 can prevent the rotating shaft 5 from separating from the sleeve 803.
[0054] The base 804 is fixed to the outside of the sleeve 803. The inner diameter of the limiting plate 801 is slightly larger than that of the sleeve 803. The base 804 includes two supporting plates 807, which can be made of thick steel plates. The two supporting plates 807 intersect and are perpendicular to each other. The cross-section of the base 804 is cross-shaped, and the axis of the sleeve 803 coincides with the intersection of the two supporting plates 807. To prevent the cotter pin 501 from being blocked, the supporting plates 807 are provided with notched grooves 808. Both the head and tail ends of the cotter pin 501 can pass through the notched grooves 808. Therefore, during the rotation of the shaft 5, the base 804 will not block the cotter pin 501.
[0055] The working process of the material receiving device (also called the material receiving and transferring device) is introduced below.
[0056] 1. The base 804 of the material receiving device 9 is fixed to the lower platform 10 by bolts. The lower platform 10 is provided with a concrete spraying machine 11. The upper platform 12 is provided above the lower platform 10. The upper platform 12 is provided with a through hole for the bottom unloading bucket 13 to pass through. Figure 10 shown.
[0057] 2. Rotate the lever 7 outside the stop groove 605 and the positioning groove 802. The hopper 1, the connecting seat 4, and the rotating shaft seat 6 can all rotate around the rotating shaft 5, and the hopper 1 is rotated to the desired position. Rotate the lever 7 into the stop groove 605 and one of the positioning grooves 802. The hopper 1, the connecting seat 4, and the rotating shaft seat 6 cannot rotate around the rotating shaft 5.
[0058] 3. The bottom-discharging bucket 13 discharges the ash into the receiving area 101 of the receiving hopper 1. The ash slides out of the receiving hopper 1 from the discharge port 102 and enters the extended bucket 2. The ash then slides out of the extended bucket 2 and enters the concrete spraying machine 11.
[0059] The above description is merely a specific embodiment of the present invention and should not be construed as limiting the scope of the present invention. Therefore, substitution of equivalent components, or equivalent changes and modifications made within the scope of protection of the present invention, should still fall within the scope of the present invention. Furthermore, the technical features of the present invention may be freely combined with each other, with each other's technical solutions, and with each other's technical solutions.
Claims
1. A material receiving device, characterized in that: The material receiving device comprises a material receiving hopper (1), a connecting seat (4), a rotating shaft (5) and a base (8) which are arranged in sequence from top to bottom. The material receiving hopper (1) comprises a material receiving area (101) and a material discharge port (102). The material discharge port (102) and the material receiving area (101) are arranged on the left and right. The rotating shaft (5) is in an upright state. The material receiving hopper (1) and the connecting seat (4) can both rotate around the rotating shaft (5).
2. The material receiving device according to claim 1, characterized in that: The receiving hopper (1) is a curved plate-like structure. A receiving space is provided inside the receiving hopper (1). The receiving hopper (1) extends in the left-right direction. The cross section of the receiving hopper (1) is an arc-shaped opening facing upward. The discharge port (102) is lower than the receiving area (101).
3. The material receiving device according to claim 2, characterized in that: The connecting seat (4) comprises an upper supporting vertical plate (401), an intermediate connecting plate (402) and a lower connecting ear plate (403) which are sequentially connected from top to bottom, and the receiving hopper (1) is connected and fixed to the upper supporting vertical plate (401).
4. The material receiving device according to claim 3, characterized in that: The material receiving device further comprises a bracket (3), the bracket (3) comprising a front frame rod (301), an upper frame rod (302) and a rear frame rod (303) which are connected in sequence from front to rear, the upper frame rod (302) being located above the material receiving hopper (1), the lower ends of the upper front frame rod (301) and the lower ends of the rear frame rod (303) being connected and fixed to the middle connecting plate (402), the upper end of the front frame rod (301) being connected to the material receiving hopper (1) via a front connecting rod (304), and the upper end of the rear frame rod (303) being connected to the material receiving hopper (1) via a rear connecting rod (305).
5. The material receiving device according to claim 1, characterized in that: The material receiving device further comprises an extended bucket (2), the extended bucket (2) being located outside the material discharge port (102) of the material receiving bucket (1), the extended bucket (2) being a curved plate-like structure, a receiving space being arranged inside the extended bucket (2), the extended bucket (2) extending in the left-right direction, the extended bucket (2) being connected to the material receiving bucket (1) via a first pin shaft (201), the first pin shaft (201) being located above the extended bucket (2), the first pin shaft (201) extending in the front-back direction, a spacing being present between the extended bucket (2) and the material receiving bucket (1), and the extended bucket (2) being capable of rotating around the first pin shaft (201).
6. The material receiving device according to claim 3, characterized in that: The material receiving device also includes a rotating shaft seat (6), the rotating shaft seat (6) includes a first ear plate (601) and a bottom plate (603) connected and fixed up and down, the lower connecting ear plate (403) is connected to the first ear plate (601) through a second pin shaft (604), the two second pin shafts (604) are arranged at intervals on the left and right, and the upper end of the rotating shaft (5) is connected and fixed to the lower surface of the bottom plate (603).
7. The material receiving device according to claim 6, characterized in that: The upper end of the base (8) includes a limiting plate (801), the bottom plate (603) and the limiting plate (801) are stacked and connected up and down, the axis of the bottom plate (603), the axis of the limiting plate (801) and the axis of the rotating shaft (5) coincide, the edge of the limiting plate (801) is provided with a plurality of positioning grooves (802), the plurality of positioning grooves (802) are evenly spaced along the circumference of the limiting plate (801), the edge of the bottom plate (603) is provided with a retaining groove (605) and two second ear plates (602), the retaining groove (605) is located between the two second ear plates (602), the two second ear plates (602) are connected to a shifting rod (7) via a third pin shaft (606), and the shifting rod (7) can rotate around the third pin shaft (606); When the shift lever (7) is located in the stop groove (605) and the positioning groove (802), the material receiving hopper (1), the connecting seat (4) and the rotating shaft seat (6) are unable to rotate around the rotating shaft (5); when the shift lever (7) is located outside the stop groove (605) and the positioning groove (802), the material receiving hopper (1), the connecting seat (4) and the rotating shaft seat (6) are able to rotate around the rotating shaft (5).
8. The material receiving device according to claim 1, characterized in that: The base (8) comprises a sleeve (803) and a base (804) which are connected in sequence. The sleeve (803) is in an upright state. The rotating shaft (5) is sleeved in the sleeve (803). An upper sliding bearing (805) and a lower sliding bearing (806) are sleeved between the rotating shaft (5) and the sleeve (803). The upper sliding bearing (805) and the lower sliding bearing (806) are spaced apart from each other.
9. The material receiving device according to claim 8, characterized in that: The lower end of the rotating shaft (5) is located outside the sleeve (803), and the lower end of the rotating shaft (5) is connected with a split pin (501), and the split pin (501) can prevent the rotating shaft (5) from being separated from the sleeve (803).
10. The material receiving device according to claim 9, characterized in that: The base (804) is fixed to the outer side of the sleeve (803), and the base (804) comprises two supporting upright plates (807), the two supporting upright plates (807) are perpendicular to each other, and a notch groove (808) is arranged on the supporting upright plates (807), and the head and tail ends of the cotter pin (501) can pass through the notch groove (808).