Portable device capable of replacing return stroke flat support of belt conveyor and using method of portable device

Abstract

The invention relates to a portable device capable of replacing a return stroke flat support of a belt conveyor and a using method of the portable device, and belongs to the technical field of traffic transportation. According to the technical scheme, one ends of a first telescopic rod and a second telescopic rod are hinged to the left and right sides of a bottom plate, and a base of a jack is placed in the middle of the bottom plate; the other ends of the first telescopic rod and the second telescopic rod are detachably connected with the left side and the right side of the bottom of the base. A lever of the jack abuts against the middle position of the bottom of the base. One end of the first supporting rod is hinged to the left side of the first groove, one end of the first bracket is hinged to the right side of the first groove, and the other end of the first supporting rod is clamped in a corresponding first clamping groove in the bottom of the first bracket. One end of the second supporting rod is hinged to the right side of the second groove, one end of the second bracket is hinged to the left side of the second groove, and the other end of the second supporting rod is clamped in a corresponding second clamping groove in the bottom of the second bracket. The device is convenient to operate, high in structural strength, light in weight, convenient to move and carry, labor-saving, suitable for replacement of return stroke flat supports of different models, small in size after being folded and free of occupying transportation and storage space.

Description

Technical Field

[0001] The invention relates to a portable replaceable belt conveyor return flat support device and a use method thereof, which is suitable for replacing return flat supports of different models of belt conveyors and belongs to the technical field of transportation. Background Art

[0002] The belt conveyor system can transport various items continuously and over long distances. It is widely used in mining, metallurgy, coal, transportation and other industries due to its advantages such as large conveying capacity, simple structure, convenient maintenance and standard components. For example, it can transport coal, ore, sand and gravel. According to the requirements of the conveying process, it can be transported by a single unit, or two or more units can be grouped with other conveying equipment to form a horizontal or inclined conveying system to meet the needs of different layout forms of work lines. When the belt conveyor runs continuously for a long time, various faults may occur, which may affect the conveying efficiency of the belt conveyor at the least and cause the belt conveyor to stop at the worst. Therefore, the components of the belt conveyor are required to be strong, reliable, safe and durable. Rollers are important components of the belt conveyor system. They are used to support the conveyor belt and the materials carried on it, and ensure the stable operation of the conveyor belt, which determines whether the belt conveyor can operate normally and stably. Therefore, the belt conveyor must ensure the normal operation of the rollers during continuous operation.

[0003] As an important part of the belt conveyor, the idler may malfunction if the belt conveyor runs for a long time. In order to ensure the normal operation of the belt conveyor, the problematic idlers need to be replaced in time. The idlers are in direct contact with the running belt. In order to replace the idlers, the running belt needs to be stopped and the belt needs to be lifted up to replace the old idlers. The long-term stoppage of the belt conveyor will not only delay the operation task, but also cause serious economic losses to the enterprise. The existing idler bracket device for replacing the idlers is generally raised and lowered by manual operation, such as a screw mechanism, which is troublesome and laborious. Moreover, the idler bracket device is an integrated structure and cannot be disassembled. There are disadvantages that the equipment is heavy and inconvenient to carry and store, and it takes up space. Furthermore, the width of the bracket of the idler bracket device cannot be adjusted, and it cannot be applied to different types of return flat brackets in various types of belt conveyors. Therefore, there is an urgent need in the art for a device that can not only complete the replacement of belt conveyor rollers quickly and conveniently, but also take up little space when it is convenient to carry and store. Summary of the invention

[0004] The purpose of the present invention is to provide a portable replaceable belt conveyor return flat support device and a method of using the same. Aiming at the existing problems of long time and difficulty in replacing rollers of belt conveyors, the present invention designs a portable replaceable belt conveyor return flat support device, which is convenient to operate, has high structural strength, is easy to assemble, easy to operate, easy to move and transport, and saves labor, and is suitable for replacing different types of return flat supports in different types of belt conveyors. The impact is small, and the use of the device to replace the belt conveyor return flat support is convenient and time-saving, and the belt conveyor has a short downtime, which has little impact on production tasks.

[0005] The technical solution of the present invention is: A portable and replaceable belt conveyor return flat support device comprises a support device and a jacking device, wherein the jacking device comprises a telescopic rod 1, a telescopic rod 2, a base plate and a jack, wherein one end of the telescopic rod 1 and the telescopic rod 2 are hinged to the left and right sides of the base plate, and the base of the jack is placed in the middle of the base plate; the support device comprises a bracket 1, a bracket 2, a support rod 1, a support rod 2 and a base, wherein the other ends of the telescopic rod 1 and the telescopic rod 2 are detachably connected to the left and right sides of the bottom of the base, respectively, and the lever of the jack is placed in the middle of the bottom of the base; the base is in the shape of a groove, and a top plate is provided in the middle, and the top plate divides the inside of the base into a groove 1 and a groove 2 arranged on the left and right sides, and one end of the support rod 1 is hinged to the left side of the groove 1 One end of bracket one is hinged on the right side of groove one, support rod one tilts to the right, bracket one tilts to the left, and the other end of support rod one is stuck in the corresponding slot one at the bottom of bracket one; one end of support rod two is hinged on the right side of groove two, one end of bracket two is hinged on the left side of groove two, support rod two tilts to the left, bracket two tilts to the right, and the other end of support rod two is stuck in the corresponding slot two at the bottom of bracket two; bracket one tilted to the left and bracket two tilted to the right form a trapezoidal groove as a whole, the belt is placed in the trapezoidal groove, the lever of the jack drives the bracket device and the belt to rise, so that the belt is out of contact with the return flat support, and after replacing the new return flat support, the lever of the jack drives the bracket device and the belt to descend and reset, and the belt contacts the new return flat support.

[0006] Furthermore, the bracket is in the shape of a groove, and a rectangular notch is opened at the bottom of the groove of the bracket. The groove walls on the front and rear sides of the rectangular notch are respectively arranged on the outer sides of the front and rear groove walls of the groove and are hinged thereto, and the depth of the rectangular notch is greater than the height of the base; the support rod is a rectangular rod, and the cross-sectional size of the support rod matches the cross-sectional size of the groove; when the support rod is in a horizontal state, it is placed in the groove, and when the bracket is in a horizontal state, it covers the outer side of the upper part of the groove; when the bracket and the support rod are in an inclined state, the other end of the support rod is clamped in the clamping groove at the bottom of the bracket, forming a triangular support structure as a whole, making the support more stable.

[0007] Furthermore, the second bracket is in the shape of a groove, and a rectangular notch 2 is opened at the bottom of the groove bottom of the second bracket. The groove walls on the front and rear sides of the second rectangular notch are respectively arranged on the outer sides of the front and rear groove walls of the second groove and are hinged thereto, and the depth of the second rectangular notch is greater than the height of the base; the second support rod is a rectangular rod, and the cross-sectional size of the second support rod matches the cross-sectional size smaller than the second groove; the second support rod is placed in the second groove when it is in a horizontal state, and covers the outer side of the upper part of the second groove when the second bracket is in a horizontal state. When the second bracket and the second support rod are in an inclined state, the other end of the second support rod is clamped in the second clamping groove at the bottom of the second bracket, forming a triangular support structure 2 as a whole, making the support more stable.

[0008] The bracket 1 and the support rod 1 in the bracket device are rotated through their hinge points, the support rod 1 enters the groove 1 and fits with the inner wall of the groove 1, the bracket 1 covers the outer part of the upper end of the groove 1, and the bracket 1 fits with the outer wall of the groove 1. The bracket 2 and the support rod 2 are rotated through their hinge points, the support rod 2 enters the groove 2 and fits with the inner wall of the groove 2, the bracket 2 covers the outer part of the upper end of the groove 2, and the bracket 2 fits with the outer wall of the groove 2. At this time, the bracket device is in a folded state, and the overall structure is a rectangular columnar structure, which is convenient for transportation and storage.

[0009] Furthermore, a slotted seat is fixed at the middle position of the bottom of the base, which is T-shaped as a whole, and the lever of the jack is pressed against the bottom of the slotted seat to avoid deformation of the base caused by long-term use of the jack.

[0010] Furthermore, the bottom plate is groove-shaped, a lifting platform is fixed at the middle position of the upper end of the bottom plate, the base of the jack is placed on the lifting platform, and the center line of the jack, the center line of the lifting platform and the center line of the bottom plate coincide.

[0011] Furthermore, the lifting platform divides the interior of the bottom plate into groove three and groove four arranged on the left and right, one end of telescopic rod one is hinged in groove three, one end of telescopic rod two is hinged in groove four, when telescopic rod one is in a horizontal state, it is placed in groove three, and when telescopic rod two is in a horizontal state, it is placed in groove four.

[0012] Further, the telescopic rod 1 comprises an outer square tube 1 and an inner square tube 1, the inner square tube 1 and the outer square tube 1 are arranged inside and outside, the bottom of the outer square tube 1 is provided with an ear plate 1, the ear plate 1 is hinged with the ear plate 2 on the bottom of the groove 3 through a pin shaft, the top of the inner square tube 1 is provided with an ear plate 3, the ear plate 3 is connected with the ear plate 4 on the left side of the bottom of the base through a detachable pin shaft, and the cross-sectional size of the outer square tube 1 matches the cross-sectional size of the groove 3; The telescopic rod 2 comprises an external square tube 2 and an internal square tube 2, which are arranged inside and outside the external square tube 2. An ear plate 5 is provided at the bottom of the external square tube 2, and the ear plate 5 is hinged to the ear plate 6 on the bottom of the groove 4 through a pin shaft. An ear plate 7 is provided at the top of the internal square tube 2, and the ear plate 7 is connected to the ear plate 8 on the right side of the bottom of the base through a detachable pin shaft. The cross-sectional size of the external square tube 2 matches the cross-sectional size of the groove 4.

[0013] Furthermore, the telescopic rod 1 and the telescopic rod 2 are symmetrically arranged with the axis of the jack as the center line.

[0014] The telescopic rod 1 and the telescopic rod 2 in the lifting device are rotated along the hinge point, the telescopic rod 1 enters the groove 3 and fits the inner wall of the groove 3, the telescopic rod 2 enters the groove 4 and fits the inner wall of the groove 4, and the telescopic rod 1, the telescopic rod 2 and the bottom plate are folded to form a rectangular columnar structure, which is convenient for transportation and storage.

[0015] Furthermore, there are multiple slots one and two, which are arranged on the bottom of bracket one and bracket two along the length direction respectively. The other ends of support rod one and support rod two are respectively clamped in slots one and slot two at different positions, thereby adjusting the inclination angle of bracket one and bracket two to adapt to different types of belts and return flat supports.

[0016] Furthermore, support plates 1 and 2 are fixed to the left sides of ear plates 1 and 3, respectively. When telescopic rod 1 is in a vertical state, support plates 1 and 2 are in contact with the bottom plate and the base, respectively, to play a supporting role, making telescopic rod 1 more stable; support plates 3 and 4 are fixed to the right sides of ear plates 5 and 7, respectively. When telescopic rod 2 is in a vertical state, support plates 3 and 4 are in contact with the bottom plate and the base, respectively, to play a supporting role, making telescopic rod 2 more stable.

[0017] A method for using a portable replaceable belt conveyor return flat support device, using the portable replaceable belt conveyor return flat support device, the steps are as follows: ① Determine the position of the return flat support that needs to be replaced, open the folded support device and the jacking device, and connect the support device and the jacking device; ② Place the portable replaceable belt conveyor return flat support device just below the left or right belt that needs to be replaced, adjust the inclination angles of bracket 1 and bracket 2 according to the belt model and return flat support model, operate the jack to start lifting the belt, so that the belt is out of contact with the return flat support; ③ Remove the old return flat support, replace it with a new one, operate the jack to lower, reset the belt, remove the device of the portable replaceable belt conveyor return flat support, and the maintenance personnel cooperate to fold and retract the device of the portable replaceable belt conveyor return flat support.

[0018] Positive effects of the present invention: 1. The device is easy to operate, has high structural strength, light weight, is easy to move and carry, and saves manpower. It is suitable for the replacement of different types of return flat supports of different types of belt conveyors. After folding, it has a small volume and does not take up transportation and storage space.

[0019] 2. Small impact. Using this device to replace the return flat support of the belt conveyor takes a short time, the belt downtime is short, and the impact on production tasks is small.

[0020] 3. The device has a simple structure and does not require high processing accuracy and strength of processing materials. At the same time, the device is processed and manufactured based on the principle of "repairing the old and making use of the waste, reducing costs and increasing efficiency". All materials can be processed and manufactured from leftover scraps from previous maintenance and old materials in stock. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of an embodiment of the present invention in a non-lifting state; Figure 2 This is a schematic diagram of the structure of a semi-lifting state of an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the fully lifted state of an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the bracket device in a fully folded state according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the stent device in a fully deployed state according to an embodiment of the present invention; Figure 6 This is a structural schematic diagram of a fully deployed state of a lifting device according to an embodiment of the present invention; Figure 7 This is a schematic structural diagram of a lifting device in a fully folded state according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the base structure of an embodiment of the present invention; Fig. 9 This is a structural schematic diagram of a support rod according to an embodiment of the present invention; Fig.10 This is a structural schematic diagram of a bracket according to an embodiment of the present invention; Fig.11 This is a structural schematic diagram of a bracket 2 according to an embodiment of the present invention; In the figure: bracket 11, slot 1101, bracket 2 12, slot 2 1201, support rod 1 21, support rod 2 22, base 31, groove 1 311, groove 2 312, groove seat 32, top plate 33, telescopic rod 1 41, external square tube 1 4101, internal square tube 1 4102, telescopic rod 2 42, external square tube 2 4201, internal square tube 2 4202, bottom plate 51, groove 3 511, groove 4 512, lifting platform 52, jack 61, ear plate 1 71, ear plate 2 72, ear plate 3 73, ear plate 4 74, ear plate 5 75, ear plate 6 76, ear plate 77, ear plate 88, support plate 1 81, support plate 2 82, support plate 3 83, support plate 4 84. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and embodiments: A portable and replaceable belt conveyor return flat support device comprises a support device and a lifting device, wherein the lifting device comprises a telescopic rod 1 41, a telescopic rod 2 42, a base plate 51 and a jack 61, wherein one end of the telescopic rod 1 41 and the telescopic rod 2 42 are hinged to the left and right sides of the base plate 51, and the base of the jack 61 is placed in the middle of the base plate 51; the support device comprises a bracket 11, a bracket 12, a support rod 1 21, a support rod 22 and a base 31, wherein the other ends of the telescopic rod 1 41 and the telescopic rod 2 42 are detachably connected to the left and right sides of the bottom of the base 31, respectively, and the lever of the jack 61 is placed in the middle of the bottom of the base 31; the base 31 is in the shape of a groove, and a top plate 33 is provided in the middle, and the top plate 33 divides the inside of the base 31 into a groove 1 311 and a groove 2 312 arranged on the left and right sides, and one end of the support rod 1 21 is hinged to the groove 1 31 1, one end of bracket 11 is hinged on the right side of groove 1 311, support rod 1 21 tilts to the right, bracket 11 tilts to the left, and the other end of support rod 1 21 is stuck in the corresponding groove 1 101 at the bottom of bracket 1 11; one end of support rod 22 is hinged on the right side of groove 2 312, one end of bracket 2 12 is hinged on the left side of groove 2 312, support rod 22 tilts to the left, bracket 2 12 tilts to the right, and the other end of support rod 22 is stuck in the corresponding groove 2 1201 at the bottom of bracket 2 12; bracket 11 tilted to the left and bracket 2 12 tilted to the right as a whole form an isosceles trapezoidal groove, the belt is placed in the isosceles trapezoidal groove, the lever of jack 61 drives the bracket device and the belt to rise, so that the belt is out of contact with the return flat support, and after replacing the new return flat support, the lever of jack 61 drives the bracket device and the belt to descend and reset, and the belt contacts the new return flat support.

[0023] In this embodiment, the bracket 11 is in the shape of a groove, and a rectangular notch is opened at the bottom of the groove of the bracket 11. The groove walls on the front and rear sides of the rectangular notch are respectively arranged on the outer sides of the front and rear groove walls of the groove 311 and are hinged therewith, and the depth of the rectangular notch is greater than the height of the base 31; the support rod 21 is a rectangular rod, and the cross-sectional size of the support rod 21 matches the cross-sectional size of the groove 311; when the support rod 21 is in a horizontal state, it is placed in the groove 311, and when the bracket 11 is in a horizontal state, it covers the outer side of the upper part of the groove 311; when the bracket 11 and the support rod 21 are in an inclined state, the other end of the support rod 21 is clamped on the clamping groove 1101 at the bottom of the bracket 11, and the whole constitutes a triangular support structure 1, which makes the support more stable.

[0024] In this embodiment, the bracket 12 is in the shape of a groove, and a rectangular notch 2 is opened at the bottom of the groove bottom of the bracket 12. The groove walls on the front and rear sides of the rectangular notch 2 are respectively arranged on the outer sides of the front and rear groove walls of the groove 312 and are hinged thereto, and the depth of the rectangular notch 2 is greater than the height of the base 31; the support rod 22 is a rectangular rod, and the cross-sectional size of the support rod 22 matches the cross-sectional size smaller than the groove 312; the support rod 22 is placed in the groove 312 when it is in a horizontal state, and covers the outer side of the upper part of the groove 312 when the bracket 12 is in a horizontal state. When the bracket 12 and the support rod 22 are in an inclined state, the other end of the support rod 22 is clamped in the clamping groove 1201 at the bottom of the bracket 12, and the whole constitutes a triangular support structure 2, which makes the support more stable.

[0025] In this embodiment, a slotted seat 32 is fixed at the middle of the bottom of the base 31, which is T-shaped as a whole. The lever of the jack 61 is pressed against the bottom of the slotted seat 32 to avoid deformation of the base due to long-term use of the jack.

[0026] In this embodiment, the bottom plate 51 is in a groove shape, a lifting platform 52 is fixed at the middle position of the upper end of the bottom plate 51 , and the base of the jack 61 is placed on the lifting platform 52 .

[0027] In this embodiment, the lifting platform 52 divides the interior of the bottom plate 51 into a groove three 511 and a groove four 512 arranged on the left and right. One end of the telescopic rod one 41 is hinged in the groove three 511, and one end of the telescopic rod two 42 is hinged in the groove four 512. When the telescopic rod one 41 is in a horizontal state, it is placed in the groove three 511, and when the telescopic rod two 42 is in a horizontal state, it is placed in the groove four 512.

[0028] In this embodiment, the telescopic rod 41 comprises an external square tube 4101 and an internal square tube 4102, and the internal square tube 4102 and the external square tube 4101 are arranged inside and outside. An ear plate 71 is provided at the bottom of the external square tube 4101, and the ear plate 71 is hinged to the ear plate 2 72 on the bottom of the groove 3 511 through a pin shaft. An ear plate 3 73 is provided at the top of the internal square tube 4102, and the ear plate 3 73 is connected to the ear plate 4 74 on the left side of the bottom of the base 31 through a detachable pin shaft. The cross-sectional size of the external square tube 4101 matches the cross-sectional size of the groove 3 511.

[0029] In this embodiment, the telescopic rod 42 comprises an external square tube 4201 and an internal square tube 4202, the internal square tube 4202 and the external square tube 4201 are arranged inside and outside, an ear plate 5 75 is provided at the bottom of the external square tube 4201, the ear plate 5 75 is hinged to the ear plate 6 76 on the bottom of the groove 4 512 through a pin, an ear plate 77 is provided at the top of the internal square tube 4202, the ear plate 77 is connected to the ear plate 8 78 on the right side of the bottom of the base 31 through a detachable pin, and the cross-sectional size of the external square tube 4201 matches the cross-sectional size of the groove 4 512.

[0030] Preferably, support plate 1 81 and support plate 2 82 are respectively fixed to the left sides of ear plate 1 71 and ear plate 3 73 at both ends of the telescopic rod 1 41. When the telescopic rod 1 41 is in a vertical state, support plate 1 81 and support plate 2 82 are respectively in contact with the bottom plate 51 and the base 31 to play a supporting role, thereby making the telescopic rod 1 41 more stable.

[0031] Preferably, support plates three 83 and four 84 are fixed to the right sides of ear plates five 75 and seven 77 at both ends of the telescopic rod two 42, respectively. When the telescopic rod two 42 is in a vertical state, support plates three 83 and four 84 are in contact with the bottom plate 51 and the base 31, respectively, to play a supporting role and make the telescopic rod two 42 more stable.

[0032] Preferably, the telescopic rod 1 41 and the telescopic rod 2 42 are symmetrically arranged with the axis of the jack 61 as the center line, so that the bracket device is not easily skewed.

[0033] Preferably, there are multiple slots 1101 and 1201, which are arranged on the bottom of bracket 11 and bracket 2 12 along the length direction respectively. The other ends of support rod 1 21 and support rod 2 22 are respectively clamped in slots 1101 and slots 2 1201 at different positions, so as to adjust the inclination angle of bracket 11 and bracket 2 12 to adapt to different types of belts and return flat supports.

[0034] A method for using a portable replaceable belt conveyor return flat support device, using the portable replaceable belt conveyor return flat support device, the steps are as follows: ① Determine the position of the return flat support that needs to be replaced, open the folded support device and the jacking device, and connect the support device and the jacking device; ② Place the portable replaceable belt conveyor return flat support device just below the left or right belt of the return flat support that needs to be replaced, adjust the inclination angles of bracket 11 and bracket 2 12 according to the belt model and the return flat support model, operate the jack 61 to start lifting the belt, so that the belt is out of contact with the return flat support; ③ Remove the old return flat support, replace it with a new return flat support, operate the jack 61 to descend, reset the belt, remove the device of the portable replaceable belt conveyor return flat support, and the maintenance personnel cooperate to fold and retract the device of the portable replaceable belt conveyor return flat support.

[0035] The specific steps are as follows: ① The maintenance personnel rotate the telescopic rod 1 41 and the telescopic rod 2 42 respectively, so that the two are in a vertical state, and connect the tops of the telescopic rod 1 41 and the telescopic rod 2 42 to the left and right sides of the bottom of the base 31 through detachable pins, respectively, to complete the connection between the bracket device and the jacking device, rotate the bracket 11 and the support rod 1 21, so that the top of the support rod 1 21 is supported on the corresponding card slot 1 1101 at the bottom of the bracket 11, rotate the bracket 2 12 and the support rod 22, so that the top of the support rod 22 is supported on the corresponding card slot 2 1201 at the bottom of the bracket 2 12, and place the jack on the lifting platform 52 of the bottom plate 51, so as to form a portable replaceable belt conveyor return flat support device (hereinafter referred to as the replacement device); ② Place the replacement device just below the left or right belt of the return support that needs to be replaced, adjust the inclination angles of bracket 1 and bracket 2 according to the belt model and the return support model, and operate the jack 61 to start lifting the belt so that the belt is out of contact with the return support; ③ Remove the old return flat support and replace it with a new one. Operate the jack 61 to lower the belt and reset it. Remove the replacement device. The maintenance personnel first remove the pins and pins at the top of the telescopic rod 1 41 and the telescopic rod 2 42 to separate the bracket device and the lifting device. Rotate the support rod 1 21 and the bracket 1 11 so that they are both retracted into the groove 1 311, rotate the support rod 22 and the bracket 2 12 so that they are both retracted into the groove 2 312, and the bracket device becomes a folded shape. Take out the jack 61, rotate the telescopic rod 1 41 and the telescopic rod 2 42 so that they are both retracted into the groove 3 511 and the groove 4 512 respectively, and the replacement device becomes a folded shape. Carry the folded bracket device, the replacement device and the jack 61 to the storage place.

[0036] Depend on Figures 1 to 3It can be seen that a portable replaceable belt conveyor return flat supporting device is composed of two major parts: a support device and a lifting device. The support device and the lifting device are connected by a detachable pin shaft. When not in use, the support device and the lifting device are in a folded state. Before use, the support device and the lifting device in the folded state are opened, and then the support device and the lifting device are assembled together through the pin shaft to form a portable replaceable belt conveyor return flat supporting device.

[0037] like Figure 4 and 5 As shown, the support device includes a support rod 1 21, a support rod 22, a bracket 11, a bracket 22 and a base 31, wherein the support rod 1 21 and the support rod 22 are connected to the base 31 through corresponding pins, so that after the support rod 1 21 and the support rod 22 are connected to the base 31, the support rod 1 21 and the support rod 22 can rotate on the base 31, and the hinged ends of the support rod 1 21 and the support rod 22 and the base 31 are chamfered to facilitate the rotation of the support rod 1 21 and the support rod 22; the bracket 11 and the bracket 2 12 are connected to the base 31. The bases 31 are also connected by pins, so that bracket 11 and bracket 2 12 can rotate on the base 31. Rectangular notch 1 and rectangular notch 2 are respectively provided at the hinged ends of bracket 11 and bracket 2 12 and the base 31, so as to facilitate the rotation of bracket 11 and bracket 2 12. The base 31 is T-shaped as a whole, and ear plate 4 74 and ear plate 8 78 are respectively provided on the left and right sides of the bottom of the base 31. Through holes are provided on ear plate 4 74 and ear plate 8 78, and the bracket device is connected to the lifting device by inserting pins into the corresponding through holes.

[0038] like Figure 6 and 7 As shown, the lifting device comprises a telescopic rod 1 41, a telescopic rod 2 42, a jack 61 and a base plate 51, wherein the telescopic rod 1 41 and the telescopic rod 2 42 are respectively connected to the base plate 51 through corresponding pins, so that the telescopic rod 1 41 and the telescopic rod 2 42 can be rotated within a specific angle range on the base plate 51, and a lifting platform 52 is arranged in the center of the base plate 51. When the replacement device is working, the jack 61 is placed on the lifting platform 52, so that the jack 61 plays a lifting role like Fig. 9 As shown, the support rod 1 21 and the support rod 2 22 have the same structure and both have a rectangular cross-sectional shape. Figure 8 As shown, the cross section of the base 31 is designed to be a U-shaped groove. The cross-sectional dimensions of the support rod 1 21 and the support rod 22 are the same as the inner dimensions of the cross-sectional dimensions of the base 31, so that the support rod 1 21 and the support rod 22 are rotated through the hinge point so that the support rod 1 21 and the support rod 22 fit the base 31 exactly. Figure 4 As shown. Fig.10As shown, the structures of bracket 11 and bracket 2 12 are the same, and the cross-section design is a U-shaped groove shape. The inner dimensions of the cross-section of bracket 11 and bracket 2 12 are the same as the outer dimensions of the cross-section of the base 31, so that bracket 11 and bracket 2 12 can fit exactly on the base 31 by rotating through the hinge point. The above description can realize the folding and opening functions of the bracket device.

[0039] like Fig.10 As shown, three slots 1101 with different distances are arranged on the inner surface of the bracket 11 from the hinge point through hole to the far end, the support rod 21 rotates on the base 31 through the hinge point and the other end is clamped in the three slots 1101 with different distances of the bracket 11, and three slots 2 1201 with different distances are arranged on the inner surface of the bracket 2 12 from the hinge point through hole to the far end, and the support rod 22 rotates on the base 31 through the hinge point and the other end is clamped in the three slots 2 1201 with different distances of the bracket 2 12. According to the needs of different types of belts, a specific angle is formed between the bracket 11 and the bracket 2 12 and the base 31, so that the bracket 11 and the bracket 2 12 drag the belt to separate the return flat support from the belt. Take the support rod 21 and the bracket 11 as an example: suppose the length of the support rod 21 is l, the distance from the hinge point of the bracket 11 and the base 31 to the hinge point of the support rod 21 and the base 31 is L, the angle between the bracket 11 and the base 31 is φ, and the distance from the slot 1101 of the bracket 11 to the hinge point is A. Then, according to the trigonometric cosine relationship, it can be obtained that Thus, a specific relationship between A and φ is obtained.

[0040] like Figure 8 As shown, both ends of the telescopic rod 1 41 and the telescopic rod 2 42 of the jacking device are provided with hinges, which are connected to the ear plates 2 72 and the ear plates 6 76 at the left and right ends of the bottom plate 51 of the jacking device through a pin shaft, and the other ends of the telescopic rod 1 41 and the telescopic rod 2 42 are connected to the ear plates 4 74 and the ear plates 8 78 at the left and right sides of the bottom of the base 31. The telescopic rod 1 41 and the telescopic rod 2 42 have the same structure, and the cross-sectional shape is a rectangular design. The cross-sectional shape of the bottom plate 51 is designed as a U-shaped groove. The telescopic rod 1 41 and the telescopic rod 2 The cross-sectional dimensions of 42 are the same as the inner dimensions of the cross-sectional dimensions of the base plate 51, so that the telescopic rod 1 41 and the telescopic rod 2 42 are rotated by the hinge point so that the telescopic rod 1 41 and the telescopic rod 2 42 are exactly fitted with the groove 3 511 and the groove 4 512 on the base plate 51. The above description can realize the folding and opening functions of the jacking device. A lifting platform 52 is provided in the center of the base plate 51. After the jacking device and the bracket are connected by the pin shaft, the jack 61 is placed on the lifting platform 52, and the jack 61 is started to realize jacking.

[0041] Preferably, the materials of the bracket 11, bracket 2 12, support rod 1 21, support rod 22, base 31, slotted seat 32, top plate 33, telescopic rod 1 41, telescopic rod 2 42, bottom plate 51 and lifting platform 52 are all made of high-strength steel by welding, and are provided with through holes and ear plates, and the components are connected by hinges, and the positions of the through holes and the sizes of each component are determined according to the set dimensional relationship and installation method.

[0042] When the return support of the belt conveyor fails, the maintenance personnel put the device of the present invention under the faulty return support, splice the bracket device and the jacking device and fix them, and the maintenance personnel cooperate with each other. One person uses a jack to jack up the belts on both sides of the return support with the problem to make the belts and the return support out of contact, and at the same time, the other person quickly replaces the return support with a new one, and then withdraws the device, and the maintenance is completed.

[0043] The embodiments described above are only descriptions of the preferred implementation modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A portable and replaceable belt conveyor return flat support device, characterized in that: The invention comprises a support device and a lifting device, wherein the lifting device comprises a telescopic rod 1 (41), a telescopic rod 2 (42), a bottom plate (51) and a jack (61), wherein one end of the telescopic rod 1 (41) and the telescopic rod 2 (42) are hinged to the left and right sides of the bottom plate (51), and the base of the jack (61) is placed in the middle of the bottom plate (51); the support device comprises a bracket 1 (11), a bracket 2 (12), a support rod 1 (21), a support rod 2 (22) and a bottom plate (31), wherein the other ends of the telescopic rod 1 (41) and the telescopic rod 2 (42) are detachably connected to the left and right sides of the bottom of the bottom plate (31), respectively, and the lever of the jack (61) is placed in the middle of the bottom of the bottom plate (31); the bottom plate (31) is in a groove shape, and a top plate (33) is provided in the middle, and the top plate (33) divides the inside of the bottom plate (31) into left and right sections. Groove 1 (311) and groove 2 (312), one end of the support rod 1 (21) is hinged on the left side of the groove 1 (311), one end of the bracket 1 (11) is hinged on the right side of the groove 1 (311), the support rod 1 (21) is tilted to the right, the bracket 1 (11) is tilted to the left, and the other end of the support rod 1 (21) is clamped on the corresponding clamping groove 1 (1101) at the bottom of the bracket 1 (11); one end of the support rod 2 (22) is hinged on the right side of the groove 2 (312), one end of the bracket 2 (12) is hinged on the left side of the groove 2 (312), the support rod 2 (22) is tilted to the left, the bracket 2 (12) is tilted to the right, and the other end of the support rod 2 (22) is clamped on the corresponding clamping groove 2 (1201) at the bottom of the bracket 2 (12); the bracket 1 (11) tilted to the left and the bracket 2 (12) tilted to the right form a trapezoidal groove as a whole, and the belt is placed in the trapezoidal groove.

2. A portable replaceable belt conveyor return flat support device according to claim 1, characterized in that: The bracket (11) is in the shape of a groove, and a rectangular notch (1) is formed at the bottom of the groove of the bracket (11). The groove walls on the front and rear sides of the rectangular notch (1) are respectively arranged on the outer sides of the front and rear groove walls of the groove (311) and are hinged thereto, and the depth of the rectangular notch (1) is greater than the height of the base (31); the support rod (21) is a rectangular rod, and the cross-sectional dimensions of the support rod (21) match the cross-sectional dimensions of the groove (311); when the support rod (21) is in a horizontal state, it is placed in the groove (311), and when the bracket (11) is in a horizontal state, it covers the outer side of the upper part of the groove (311); when the bracket (11) and the support rod (21) are in an inclined state, the other end of the support rod (21) is clamped on the clamping groove (1101) at the bottom of the bracket (11), and the whole forms a triangular support structure (1); The second bracket (12) is in the shape of a groove, and a rectangular notch (2) is opened at the bottom of the groove of the second bracket (12). The groove walls on the front and rear sides of the second rectangular notch are respectively arranged on the outer sides of the front and rear groove walls of the second groove (312) and are hinged thereto, and the depth of the second rectangular notch is greater than the height of the base (31); the second support rod (22) is a rectangular rod, and the cross-sectional size of the second support rod (22) matches the cross-sectional size of the second groove (312); when the second support rod (22) is in a horizontal state, it is placed in the second groove (312), and when the second bracket (12) is in a horizontal state, it covers the outer side of the upper part of the second groove (312); when the second bracket (12) and the second support rod (22) are in an inclined state, the other end of the second support rod (22) is clamped on the second clamping groove (1201) at the bottom of the second bracket (12), and the whole forms a triangular support structure (2).

3. A portable replaceable belt conveyor return flat support device according to claim 1 or 2, characterized in that: A slot-shaped seat (32) is fixed at the middle position of the bottom of the base (31), which is in a T-shape as a whole, and a lever of the jack (61) is pressed against the bottom of the slot-shaped seat (32).

4. A portable replaceable belt conveyor return flat support device according to claim 1 or 2, characterized in that: The bottom plate (51) is in a groove shape, and a lifting platform (52) is fixed at the middle position of the upper end of the bottom plate (51), and the base of the jack (61) is placed on the lifting platform (52).

5. A portable replaceable belt conveyor return flat support device according to claim 4, characterized in that: The lifting platform (52) divides the interior of the bottom plate (51) into a groove three (511) and a groove four (512) arranged on the left and right. One end of the telescopic rod one (41) is hinged in the groove three (511), and one end of the telescopic rod two (42) is hinged in the groove four (512). When the telescopic rod one (41) is in a horizontal state, it is placed in the groove three (511), and when the telescopic rod two (42) is in a horizontal state, it is placed in the groove four (512).

6. A portable replaceable belt conveyor return flat support device according to claim 5, characterized in that: The telescopic rod 1 (41) comprises an outer square tube 1 (4101) and an inner square tube 1 (4102), wherein the inner square tube 1 (4102) and the outer square tube 1 (4101) are arranged inside and outside each other, and an ear plate 1 (71) is provided at the bottom of the outer square tube 1 (4101), and the ear plate 1 (71) is hinged to an ear plate 2 (72) on the bottom of a groove 3 (511) through a pin shaft, and an ear plate 3 (73) is provided at the top of the inner square tube 1 (4102), and the ear plate 3 (73) is connected to an ear plate 4 (74) on the left side of the bottom of the base (31) through a detachable pin shaft, and the cross-sectional dimensions of the outer square tube 1 (4101) match the cross-sectional dimensions of the groove 3 (511); The telescopic rod 2 (42) comprises an outer square tube 2 (4201) and an inner square tube 2 (4202), wherein the inner square tube 2 (4202) and the outer square tube 2 (4201) are arranged inside and outside each other, and an ear plate 5 (75) is provided at the bottom of the outer square tube 2 (4201), and the ear plate 5 (75) is hinged to an ear plate 6 (76) on the bottom of the groove 4 (512) through a pin shaft, and an ear plate 7 (77) is provided at the top of the inner square tube 2 (4202), and the ear plate 7 (77) is connected to an ear plate 8 (78) on the right side of the bottom of the base (31) through a detachable pin shaft, and the cross-sectional dimensions of the outer square tube 2 (4201) match the cross-sectional dimensions of the groove 4 (512).

7. A portable replaceable belt conveyor return flat support device according to claim 2, characterized in that: The telescopic rod 1 (41) and the telescopic rod 2 (42) are symmetrically arranged with the axis of the jack (61) as the center line.

8. A portable replaceable belt conveyor return flat support device according to claim 2, characterized in that: The first card slot (1101) and the second card slot (1201) are both multiple and are arranged on the bottom of the bracket (11) and the bracket (12) along the length direction. The tops of the first support rod (21) and the second support rod (22) are respectively clamped on the first card slot (1101) and the second card slot (1201) at different positions, thereby adjusting the tilt angle of the bracket (11) and the bracket (12).

9. A portable replaceable belt conveyor return flat support device according to claim 5, characterized in that: A support plate 1 (81) and a support plate 2 (82) are fixed to the left side of the ear plate 1 (71) and the ear plate 3 (73), respectively. When the telescopic rod 1 (41) is in a vertical state, the support plate 1 (81) and the support plate 2 (82) are in contact with the bottom plate (51) and the base (31) respectively. A support plate 3 (83) and a support plate 4 (84) are fixed to the right side of the ear plate 5 (75) and the ear plate 7 (77), respectively. When the telescopic rod 2 (42) is in a vertical state, the support plate 3 (83) and the support plate 4 (84) are in contact with the bottom plate (51) and the base (31) respectively.

10. A method for using a portable replaceable belt conveyor return flat support device, using the portable replaceable belt conveyor return flat support device according to any one of claims 1 to 9, characterized in that: ① Determine the position of the return flat support that needs to be replaced, open the folded support device and the jacking device, connect the support device and the jacking device, and assemble them into a portable and replaceable belt conveyor return flat support device; ② Place the portable replaceable belt conveyor return support device directly below the left or right belt whose return support needs to be replaced, adjust the inclination angles of bracket 1 (11) and bracket 2 (12) according to the belt model and return support model, and operate the jack (61) to start lifting the belt so that the belt is out of contact with the return support; ③ Remove the old return flat support and replace it with a new return flat support, operate the jack (61) to lower it, reset the belt, remove the device of the portable replaceable belt conveyor return flat support, and the maintenance personnel cooperate to fold and retract the device of the portable replaceable belt conveyor return flat support.

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