CN211643696U

CN211643696U - Concrete conveyer belt adjusting device

Info

Publication number: CN211643696U
Application number: CN201922377041.3U
Authority: CN
Inventors: 赵凯
Original assignee: Shaanxi Shengtai Haojing Building Mat Co ltd
Current assignee: Shaanxi Shengtai Haojing Building Mat Co ltd
Priority date: 2019-12-25
Filing date: 2019-12-25
Publication date: 2020-10-09
Anticipated expiration: 2029-12-25

Abstract

The utility model relates to a concrete production conveying equipment technical field's a concrete conveying belt adjusting device, aim at solving the problem of automatically regulated conveyer belt elasticity, including conveying frame, conveying frame establishes to the feed inlet on one side, the opposite side is established to the discharge gate, conveying frame one side is equipped with a set of mount, it is connected with the drive roll to rotate between two mounts, arbitrary mount deviates from drive roll one side and is equipped with driving motor, conveying frame is close to the feed inlet and is equipped with a set of backup pad along vertical direction relatively, the spout has all been seted up along length direction to the relative both sides wall of backup pad, be equipped with the slider in the spout, be equipped with the runner assembly between two sliders, the runner assembly deviates from drive roll one side and is equipped with supporting component, be fixed with a plurality of reset spring between runner assembly and the supporting component, supporting component one. The utility model discloses the effect of automatically regulated conveyer belt elasticity has.

Description

Concrete conveyer belt adjusting device

Technical Field

The utility model belongs to the technical field of concrete production conveying equipment's technique and specifically relates to a concrete conveyer belt adjusting device is related to.

Background

At present, the concrete is a material commonly used in the building, and the production of concrete need with in a plurality of raw materials such as sand, stone transport the higher different holding vessel in position, then send into the mixer stirring through weighing the raw materials in the different holding vessels in proportion, when transporting the raw materials to the higher holding vessel in position, need use the ascending conveyer belt of slope to transport a plurality of raw materials such as sand, stone, the conveyer belt sets up to transport by motor output shaft driven conveyer belt under the general condition.

In the prior art, chinese patent with publication number CN208217686U discloses a concrete conveyer belt adjusting device, which includes a conveying frame, a conveyer belt is disposed on the conveying frame, the conveyer belt includes driving shafts rotationally fixed at two ends of the conveying frame, a motor for driving the driving shafts to rotate around their axes is fixedly disposed on one of the driving shafts, a limit switch is connected in series to a control circuit of the motor, a knob for controlling the on-off of the limit switch is disposed on the limit switch, a driving plate for driving the knob to rotate around its axes is fixedly disposed on the knob, a flexible rope is fixedly disposed at an end of the driving plate, and a speed reducing mechanism is fixedly disposed at an end of the flexible rope opposite to the driving plate; the speed reducing mechanism comprises a sliding plate fixed at one end of the flexible rope, which is back to the driving plate, a guide groove plate for guiding the speed reducing plate to move along the length direction of the conveying belt is sleeved outside the sliding plate, and the sliding plate is abutted against the driving shaft after sliding along the guide groove plate towards the end surface of the driving shaft.

The working process is as follows: when an accident happens in the process of cleaning the conveying belt, a worker pulls the flexible rope with a hand, the flexible rope drives the driving plate to rotate around the axis of the knob, the driving plate drives the knob to rotate, the knob rotates to disconnect the limit switch, a circuit of a motor connected with the limit switch in series is disconnected, and therefore the motor stops working. When the motor stops running, the flexible rope drives the sliding plate to move along the guide groove plate, so that the speed reduction plate on the sliding plate is in contact friction with the driving shaft to enable the driving shaft to stop rotating fast, and the conveying belt stops moving fast.

The above prior art solutions have the following drawbacks: the conveyer belt can be because of rubbing with the drive shaft and lax in the long-term use, causes the drive shaft idle running, makes the conveyer belt can not normally work at last, needs operating personnel to pull down the conveyer belt of lax and change this moment, and the troublesome poeration is just extravagant manpower.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a concrete conveyer belt adjusting device has the beneficial effect of automatically regulated conveyer belt elasticity degree.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: a concrete conveying belt adjusting device comprises a conveying frame, wherein one side of the conveying frame is provided with a feeding hole, the other side of the conveying frame is provided with a discharging hole, one side of the conveying frame, which is close to the discharging hole, is provided with a group of fixing frames along the vertical direction, a driving roller which is vertical to the fixing frames is connected between the two fixing frames in a rotating mode, one side of any one of the fixing frames, which is far away from the driving roller, is provided with a driving motor, the free end of the output shaft of the driving motor is fixedly connected with the driving roller, the conveying frame, which is close to the feeding hole, is provided with a group of supporting plates along the vertical direction, the two opposite side walls of each supporting plate are respectively provided with a sliding groove along the length direction, a sliding block which can slide along the sliding grooves is arranged in each sliding groove, a rotating assembly, one end of the supporting component is rotatably connected with the side wall of the supporting plate, and the other end of the supporting component is detachably and rotatably connected with the side wall of the supporting plate.

By adopting the technical scheme, when concrete is transported, an operator firstly places the concrete on the conveying belt, the driving motor is started, the output shaft of the driving motor drives the driving roller to rotate, the driving roller drives the conveying belt to transmit, the conveying belt drives the rotating assembly to rotate, and the concrete on the conveying belt is transported to the discharge hole from the feed hole; reset spring initial state is by stretching state, and when the conveyer belt led to the conveyer belt to relax with drive roll and rotating assembly friction in long-term motion process, reset spring moved towards supporting component one side along the spout under the effect of self restoring force, has realized the automatic tightening of conveyer belt, uses manpower sparingly.

The present invention may be further configured in a preferred embodiment as: the supporting component and the rotating component are integrally covered with a protective cover.

Through adopting above-mentioned technical scheme, when the concrete was transported on the conveyer belt, it was unrestrained to have some concrete to follow conveyer belt direction of motion both sides, and the setting up of safety cover has prevented that unrestrained concrete from falling into and has made supporting component and rotating assembly jamming in supporting component and the rotating assembly.

The present invention may be further configured in a preferred embodiment as: the rotating assembly comprises a driven roller and a first telescopic rod in sliding connection with the driven roller, the driven roller is detachably connected with one end of the sliding block, a first limiting ring is sleeved at one end, close to the sliding block, of the first telescopic rod, a first telescopic spring is sleeved on the first limiting ring, one end of the first telescopic spring is fixed to the side wall of the first limiting ring, the other end of the first telescopic spring is fixed to the side wall of the first telescopic rod, and a first reset assembly is arranged between the first telescopic rod and the first limiting ring; the supporting component comprises a supporting rod and a second telescopic rod connected with the supporting rod in a sliding mode, the supporting rod is connected with the sliding block, one end of the supporting rod is connected with the sliding block, the supporting rod can be detached and connected, the second telescopic rod is close to a second limiting ring arranged on one end of a side wall of the supporting plate in a sleeved mode, one end of the second limiting ring is fixed to the side wall of the second limiting ring, the other end of the second limiting ring is fixed to the side wall of the second telescopic rod, and a second reset component is arranged between the second telescopic rod and the.

Through adopting above-mentioned technical scheme, when the conveyer belt need be dismantled and change, first expanding spring and second expanding spring initial condition are for being stretched state, operating personnel presses first reset subassembly and second reset subassembly respectively, first spacing ring and second spacing ring break away from respectively in first reset subassembly and the second reset subassembly, first expanding spring drives first telescopic link and slides towards driven voller one side under the effect of answer power, the second expanding spring drives the second telescopic link and slides towards bracing piece one side under the effect of answer power, pull down the driven voller from the slider again, rotating assembly and supporting component's quick dismantlement has been realized.

The present invention may be further configured in a preferred embodiment as: first reset assembly and second reset assembly all include the rectangle frame and with rectangle frame sliding connection's pressing the splenium, press the splenium to be fixed in the rectangle frame top, the inside opening that is equipped with of rectangle frame, keep away from in the opening and press splenium one side to be equipped with elastic material's limiting plate, press the splenium to pass the rectangle frame just has U type frame to the end connection of limiting plate.

By adopting the technical scheme, when the conveying belt is in a normal state, the first telescopic spring and the second telescopic spring are both in a stretching state, the first limiting ring is clamped on one side, away from the first telescopic spring, of the rectangular frame, and the second limiting ring is clamped on one side, away from the second telescopic spring, of the rectangular frame; when the conveyer belt need be changed, operating personnel pressed down the splenium, because the limiting plate is the elastic component, the limiting plate is compressed under the effect of U type frame, and first spacing ring and the spacing snap ring of second all break away from the backup pad lateral wall this moment, realize dismantling and convenient the change of conveyer belt.

The present invention may be further configured in a preferred embodiment as: a third telescopic rod penetrates through the reset spring, one end of the third telescopic rod is fixedly connected with the peripheral wall of the driven roller, the other end of the third telescopic rod is fixedly connected with the peripheral wall of the supporting rod, a fixing ring is sleeved on the peripheral wall of any one end of the third telescopic rod, one end of the first reset spring is fixedly connected with one side of the fixing ring, and the other side of the first reset spring is fixedly connected with the peripheral wall of the driven roller and the peripheral.

Through adopting above-mentioned technical scheme, reset spring initial state is by stretching state, and reset spring will make the driven voller move towards bracing piece one side along the spout under the restoring force effect when the conveyer belt is lax, and the setting of third telescopic link has realized support and guide to reset spring, prevents that reset spring warp at tensile in-process, and the setting of solid fixed ring realizes the fixed at reset spring both ends.

The present invention may be further configured in a preferred embodiment as: the first telescopic rod, the second telescopic rod and the third telescopic rod respectively comprise a sleeve and a sleeve rod in sliding connection with the sleeve.

Through adopting above-mentioned technical scheme, the setting of loop bar and sleeve pipe has realized the slippage of loop bar in the sleeve pipe.

The present invention may be further configured in a preferred embodiment as: the sleeve rod is provided with a flange annularly arranged on the peripheral wall of one end, close to the sleeve, of the sleeve rod, the end, close to the sleeve rod body, of the sleeve rod is provided with a convex wall in an inward extending mode, and the diameter of the outer ring of the flange is larger than that of the inner ring of the convex wall.

Through adopting above-mentioned technical scheme, the setting that flange outer lane diameter is greater than the flange inner circle diameter has prevented that the loop bar breaks away from in the sleeve pipe when the cover pipe internal slipping, realizes spacingly.

The present invention may be further configured in a preferred embodiment as: the equal fixedly connected with in both sides that the slider deviates from mutually slides along the spout and with spout both sides fixed connection's organ safety cover.

Through adopting above-mentioned technical scheme, when the slider slided in the spout, probably had the concrete and fallen into in the spout, the organ safety cover set up prevented that the concrete from unrestrained in the spout, realized that the slider smoothly moves in the spout.

To sum up, the utility model discloses a following at least one useful technological effect:

1. through the designed rotating assembly, the supporting assembly and the return spring, the automatic tightening of the conveying belt is realized, and the labor is saved;

2. through the designed first reset assembly and the second reset assembly, the support assembly and the rotating assembly are conveniently separated from the side wall of the support plate, and the conveyor belt can be detached and replaced conveniently;

3. through the organ safety cover of design, prevented that the concrete from unrestrained in the spout, realized that the slider smoothly moves in the spout.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a partial schematic view of a rotating assembly of the support assembly of FIG. 2;

FIG. 3 is a schematic view of the rotating assembly;

FIG. 4 is a schematic structural view of a first reduction assembly and a second reduction assembly;

fig. 5 is a schematic structural view of the first telescopic rod.

In the figure, 1, a support assembly; 2. a rotating assembly; 3. a first telescoping assembly; 11. a protective cover; 12. a feed inlet; 13. a support plate; 14. a conveying frame; 15. a fixed mount; 16. a drive motor; 17. a drive roll; 18. a discharge port; 20. a first reset assembly; 21. an organ protection cover; 22. a chute; 23. a return spring; 24. a fixing ring; 25. a third telescopic rod; 26. a second stop collar; 27. a second extension spring; 28. a second telescopic rod; 29. a second reset assembly; 30. a support bar; 311. a driven roller; 312. a first telescopic rod; 313. a first extension spring; 314. a first limit ring; 315. a slider; 411. a U-shaped frame; 412. a pressing part; 413. an opening; 414. a rectangular frame; 415. a limiting plate; 511. a sleeve; 512. a flange; 513. a convex wall; 514. a loop bar.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a concrete conveyer belt adjusting device, including conveying frame 14, conveying frame 14 one side is established to feed inlet 12, the opposite side is established to discharge gate 18, conveying frame 14 is close to discharge gate 18 one side and is provided with a set of mount 15 along vertical direction relatively, rotate between two mounts 15 and be connected with mount 15 vertically drive roll 17, arbitrary mount 15 deviates from drive roll 17 one side and is provided with driving

motor

16, 16 output shaft free ends of driving motor and drive roll 17 fixed connection, pass through spline housing fixed connection between driving motor 16 and the drive roll 17 in this embodiment.

Referring to fig. 2 and 3, in order to achieve automatic tightening of the conveying belt and save labor, a group of supporting plates 13 is oppositely arranged on the conveying frame 14 close to the feeding port 12 along the vertical direction, sliding grooves 22 are respectively arranged on two opposite side walls of the supporting plates 13 along the length direction, sliding blocks 315 capable of sliding along the sliding grooves 22 are arranged in the sliding grooves 22, in order to prevent concrete from scattering in the sliding grooves 22, the sliding blocks 315 smoothly move in the sliding grooves 22, two sides of the sliding blocks 315, which are deviated from each other, are fixedly connected with organ protection covers 21 which slide along the sliding grooves 22 and are fixedly connected with two sides of the sliding grooves 22, and in this embodiment, two ends of the organ protection covers 21 and two ends of the sliding grooves; a rotating component 2 perpendicular to the supporting plate 13 is disposed between the two sliding blocks 315, the rotating component 2 includes a driven roller 311 and a first telescopic rod 312 slidably connected to the driven roller 311, referring to fig. 5, the first telescopic rod 312 includes a sleeve 511 and a sleeve rod 514 slidably connected to the sleeve 511, in order to prevent the sleeve rod 514 from separating from the sleeve 511 when sliding in the sleeve 511, so as to achieve the limiting, a flange 512 is disposed around a peripheral wall of the sleeve 514 near one end of the sleeve 511, a protruding wall 513 is inwardly extended from an end of the sleeve 511 near a rod body of the sleeve 514, a diameter of an outer ring of the flange 512 is greater than a diameter of an inner ring of the protruding wall 513, a connecting end of the driven roller 311 and the sliding block 315 is detachably connected, in this embodiment, the driven roller 311 and the sliding block 315 are fixedly connected by a bolt, a first limiting ring 314 is disposed around one end of the first telescopic rod 312 near the sliding block 315, and a, the other end of the first extension spring 313 is fixed to the side wall of the first extension rod 312, and in this embodiment, two ends of the first extension spring 313 are respectively welded to the first limiting ring 314 and the side wall of the first extension rod 312.

Referring to fig. 4, in order to realize quick detachment of the rotating assembly 2, a first restoring assembly 20 is disposed between the first telescopic rod 312 and the first limiting ring 314, the first restoring assembly 20 includes a rectangular frame 414 and a pressing portion 412 slidably connected to the rectangular frame 414, the pressing portion 412 is fixed to the top of the rectangular frame 414, in this embodiment, the pressing portion 412 is integrally welded and fixed to the top of the rectangular frame 414, an opening 413 is disposed inside the rectangular frame 414, a limiting plate 415 made of an elastic material is disposed on a side of the opening 413 away from the pressing portion 412, and the pressing portion 412 penetrates through the rectangular frame 414 and is connected to a U-shaped frame 411 opposite to an end of the limiting;

referring to fig. 2 and 3, a supporting component 1 fixed between two supporting plates 13 is disposed on a side of the rotating component 2 away from the driving roller 17, the supporting component 1 includes a supporting rod 30 and a second telescopic rod 28 slidably connected to the supporting rod 30, the supporting rod 30 is detachably connected to a connecting end of the sliding block 315, in this embodiment, the supporting rod 30 is fixedly connected to the sliding block 315 through a bolt, a second limiting ring 26 is disposed on an end of the second telescopic rod 28 close to a side wall of the supporting plate 13, a second telescopic spring 27 is disposed on the second limiting ring 26, one end of the second telescopic rod is fixed to a side wall of the second limiting ring 26, and the other end of the second telescopic rod is fixed to a side wall of the second telescopic rod 28, referring to fig. 5, the second telescopic rod 28 includes a sleeve 511 and a sleeve 514 slidably connected to the sleeve 511, a peripheral wall ring at an end of the sleeve 514 is disposed with a flange 512, the outer circle diameter of flange 512 is greater than the inner circle diameter of convex wall 513.

Referring to fig. 4, in order to realize quick detachment of the support assembly 1, a second reset assembly 29 is disposed between the second telescopic rod 28 and the second limiting ring 26, the second reset assembly 29 includes a rectangular frame 414 and a pressing portion 412 slidably connected to the rectangular frame 414, the pressing portion 412 is fixed to the top of the rectangular frame 414, an opening 413 is disposed in the rectangular frame 414, a limiting plate 415 made of an elastic material is disposed on a side of the opening 413 away from the pressing portion 412, and the pressing portion 412 penetrates through the rectangular frame 414 and is connected to a U-shaped frame 411 opposite to an end of the limiting plate 415;

referring to fig. 2 and 3, a plurality of return springs 23 are fixed between the rotating component 2 and the supporting component 1, in this embodiment, two return springs 23 are provided, the return springs 23 are provided at two ends of the driven roller 311, the return springs 23 are provided with a third telescopic rod 25 passing through the inside thereof, referring to fig. 5, the third telescopic rod 25 includes a sleeve 511 and a sleeve rod 514 slidably connected with the sleeve 511, a flange 512 is provided around a peripheral wall of the sleeve 514 near one end of the sleeve 511, a convex wall 513 is provided inward from an end of the sleeve 511 near a rod body of the sleeve 514, a diameter of an outer ring of the flange 512 is larger than a diameter of an inner ring of the convex wall 513, one end of the third telescopic rod 25 is fixedly connected with a peripheral wall of the driven roller 311, the other end is fixedly connected with a peripheral wall of the supporting rod 30, a fixing ring 24 is provided around any peripheral wall of the third telescopic rod 25, one end of, in the embodiment, two ends of the return spring 23 are respectively welded and fixed with the fixing ring 24, the peripheral wall of the driven roller 311 and the peripheral wall of the supporting rod 30; in order to prevent the falling concrete from falling into the supporting component 1 and the rotating component 2 to clamp the supporting component 1 and the rotating component 2, one end of the supporting component 1 is rotatably connected with the side wall of the supporting plate 13, the other end of the supporting component 1 is rotatably connected with the side wall of the supporting plate 13, and the supporting component 1 and the rotating component 2 are integrally covered with a protective cover 11.

The implementation principle of the embodiment is as follows: when concrete is transported, an operator firstly places the concrete on the conveying belt, the driving motor 16 is started, an output shaft of the driving motor 16 drives the driving roller 17 to rotate, the driving roller 17 drives the conveying belt to transmit, the conveying belt drives the rotating assembly 2 to rotate, and the concrete on the conveying belt is transported to the discharge hole 18 from the feed port 12; the initial state of the return spring 23 is a stretched state, and when the conveyer belt is in friction with the driving roller 17 and the rotating assembly 2 in the long-term movement process to cause the conveyer belt to be loosened, the return spring 23 moves towards one side of the supporting assembly 1 along the sliding groove 22 under the action of self-restoring force;

when the conveyer belt needs to be replaced, an operator presses the pressing part 412, the limiting plate 415 is an elastic part, the limiting plate 415 is compressed under the action of the U-shaped frame 411, the first limiting ring 314 and the second limiting clamping ring are separated from the side wall of the supporting plate 13, and the conveyer belt is taken down from the driven roller 311 and replaced by the operator.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. The utility model provides a concrete conveyer belt adjusting device, includes conveying frame (14), conveying frame (14) one side is established to feed inlet (12), and the opposite side is established to discharge gate (18), its characterized in that: the conveying frame (14) is close to one side of a discharge port (18) and is relatively provided with a group of fixing frames (15) along the vertical direction, two driving rollers (17) vertical to the fixing frames (15) are rotatably connected between the two fixing frames (15), one side of any fixing frame (15) departing from the driving rollers (17) is provided with a driving motor (16), the free end of an output shaft of the driving motor (16) is fixedly connected with the driving rollers (17), the conveying frame (14) is close to a feed port (12) and is relatively provided with a group of supporting plates (13) along the vertical direction, two opposite side walls of the supporting plates (13) are respectively provided with a sliding chute (22) along the length direction, a sliding block (315) capable of sliding along the sliding chute (22) is arranged in the sliding chute (22), a rotating assembly (2) vertical to the supporting plates (13) is arranged between the two sliding blocks (315), one side of the rotating assembly (2) departing from the driving rollers, a plurality of reset springs (23) are fixed between the rotating component (2) and the supporting component (1), one end of the supporting component (1) is rotatably connected with the side wall of the supporting plate (13), and the other end of the supporting component is detachably and rotatably connected with the side wall of the supporting plate (13).

2. A concrete conveyor belt adjustment device according to claim 1, characterized in that: the supporting component (1) and the rotating component (2) are integrally covered with a protective cover (11).

3. A concrete conveyor belt adjustment device according to claim 1, characterized in that: the rotating assembly (2) comprises a driven roller (311) and a first telescopic rod (312) which is connected with the driven roller (311) in a sliding manner, the driven roller (311) is connected with one end of a sliding block (315) in a detachable manner, one end, close to the sliding block (315), of the first telescopic rod (312) is sleeved with a first limiting ring (314), one end of the first limiting ring (314) is fixed to the side wall of the first limiting ring (314), the other end of the first telescopic rod (312) is fixed to the side wall of the first telescopic rod (313), and a first resetting assembly (20) is arranged between the first telescopic rod (312) and the first limiting ring (314); support assembly (1) include bracing piece (30) and with bracing piece (30) sliding connection's second telescopic link (28), bracing piece (30) are connected one end with slider (315) and can dismantle and be connected, second telescopic link (28) are close to second spacing ring (26) that backup pad (13) lateral wall pot head was equipped with, it is fixed with second spacing ring (26) lateral wall to overlap on second spacing ring (26), and second expanding spring (27) that the other end and second telescopic link (28) lateral wall were fixed, be equipped with second reset assembly (29) between second telescopic link (28) and second spacing ring (26).

4. A concrete conveyor belt adjustment device according to claim 3, characterized in that: first subassembly (20) and the second subassembly (29) that resets all include rectangle frame (414) and with rectangle frame (414) sliding connection's pressing portion (412), pressing portion (412) are fixed in rectangle frame (414) top, inside opening (413) that is equipped with of rectangle frame (414), keep away from in opening (413) and press portion (412) one side to be equipped with elastic material's limiting plate (415), press portion (412) to pass rectangle frame (414) and just to U type frame (411) to the end connection of limiting plate (415).

5. A concrete conveyor belt adjustment device according to claim 3, characterized in that: a third telescopic rod (25) penetrates through the interior of the reset spring (23), one end of the third telescopic rod (25) is fixedly connected with the peripheral wall of the driven roller (311), the other end of the third telescopic rod is fixedly connected with the peripheral wall of the supporting rod (30), a fixing ring (24) is sleeved on the peripheral wall of any one end of the third telescopic rod (25), one end of the reset spring (23) is fixedly connected with one side of the fixing ring (24), and the other side of the reset spring is fixedly connected with the peripheral wall of the driven roller (311) and the peripheral wall of the supporting.

6. A concrete conveyor belt adjustment device according to claim 5, characterized in that: the first telescopic rod (312), the second telescopic rod (28) and the third telescopic rod (25) comprise sleeves (511) and sleeve rods (514) in sliding connection with the sleeves (511), the flanges (512) are annularly arranged on the peripheral walls of one ends, close to the sleeves (511), of the sleeve rods (514), and the end portions, close to rod bodies of the sleeve rods (514), of the sleeve rods (511) extend inwards to form convex walls (513).

7. A concrete conveyor belt adjustment device according to claim 6, characterized in that: the diameter of the outer ring of the flange (512) is larger than that of the inner ring of the convex wall (513).

8. A concrete conveyor belt adjustment device according to claim 1, characterized in that: the two sides of the sliding block (315) which deviate from each other are fixedly connected with organ protection covers (21) which slide along the sliding grooves (22) and are fixedly connected with the two sides of the sliding grooves (22).