CN213111144U

CN213111144U - Conveyer belt overspeed device tensioner is used in concrete production

Info

Publication number: CN213111144U
Application number: CN202021886244.1U
Authority: CN
Inventors: 张金荣
Original assignee: Jingmen Jinhong Building Materials Co ltd
Current assignee: Jingmen Jinhong Building Materials Co ltd
Priority date: 2020-09-02
Filing date: 2020-09-02
Publication date: 2021-05-04
Anticipated expiration: 2030-09-02

Abstract

The utility model discloses a conveyer belt overspeed device tensioner for concrete production, extension board and casing fixed mounting are in the frame, centraxonial lower part activity is worn and is put in the casing, and centraxonial upper end movable mounting is on the extension board, is provided with the external screw thread on centraxonial upper portion, is provided with the guide post between extension board and casing set up threaded hole and guiding hole on the lift seat, and the lift seat is put on the guide post through the guiding hole movable sleeve, and the axis is put at the threaded hole of lift seat through its external screw thread soon, is provided with the montant on the lift seat be provided with the support on the ash collecting bucket, has seted up vertical hole on the support, and the support is put on the montant through vertical hole movable sleeve, the spring housing is put on the montant, and the both ends of spring support respectively by on lift seat and support, the utility model discloses the advantage is: the tensioning degree of the conveying belt is adjusted, the operation is very convenient and fast, time and labor are saved, and the conveying belt is prevented from being damaged when the load of the conveying belt is too large.

Description

Conveyer belt overspeed device tensioner is used in concrete production

Technical Field

The utility model relates to a overspeed device tensioner's technical field, more specifically say so and relate to conveyer belt overspeed device tensioner's technical field.

Background

The concrete mixing plant is a combined device for intensively mixing concrete, is also called as a concrete precast yard, has high productivity due to high mechanization and automation degree, can ensure the quality of the concrete and save cement, and is commonly used for large-scale and medium-scale water conservancy, electric power, bridge and other projects with large concrete engineering quantity, long construction period and centralized construction sites. In the process of producing concrete in a concrete mixing plant, an aerial pipe gallery is generally erected between different production workshops, belt conveying equipment is arranged in the aerial pipe gallery to convey materials such as sand, stone or fly ash from one workshop to another workshop, and a conveying belt of the belt conveying equipment needs to be tensioned through a tensioning mechanism in the conveying process, however, the conventional tensioning mechanism has the following defects: firstly, the conventional tensioning mechanism generally adopts a gravity tensioning mode, namely, a tension force is applied to the tensioning wheel and the conveying belt through the balancing weight to keep the tensioning of the conveying belt, however, when the tensioning degree needs to be adjusted, the tensioning mechanism needs to be adjusted in a mode of increasing or decreasing the balancing weight, the height of the tensioning mechanism is generally higher, and tools such as a ladder are needed when the balancing weight is increased or decreased, so that the operation is very inconvenient; secondly, the tensioning mechanism is generally arranged outside the air pipe gallery, ash and slag can be adhered to the surface of the conveying belt in the process of conveying materials, when the ash and slag reach the position of the tensioning mechanism, the conveying belt is bent greatly at the tensioning wheel, the ash and slag attached to the conveying belt can be collapsed, the collapsed ash and slag directly fall into a field outside the air pipe gallery, and the plant area environment of the concrete mixing plant is polluted.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the above-mentioned not enough and provide a tensioning and adjust convenient operation to can avoid the lime-ash on the conveyer belt to fall to the piping lane outside and cause the conveyer belt overspeed device tensioner for concrete production of pollution to the environment.

The utility model discloses a solve above-mentioned technical problem and the technical solution who adopts as follows:

the conveying belt tensioning device for concrete production comprises a rack, a worm, a middle shaft, a support plate, a shell, a tensioning roller, a dust collecting hopper, a dust storage bin, a spring, a lifting seat, a hose and a cover plate, wherein the support plate and the shell are fixedly arranged on the rack, the lower part of the middle shaft is movably arranged in the shell in a penetrating way, the upper end part of the middle shaft is movably arranged on the support plate, the upper part of the middle shaft is provided with an external thread, a guide post is arranged between the support plate and the shell, the lifting seat is provided with a threaded hole and a guide hole, the lifting seat is movably sleeved on the guide post through the guide hole, the middle shaft is rotatably arranged in the threaded hole of the lifting seat through the external thread, the lifting seat is provided with a vertical rod, the dust collecting hopper is provided with a support seat, the support seat is provided with a vertical hole, the support seat is movably sleeved on the vertical rod through the vertical hole, the spring is sleeved, the ash collecting device is characterized in that an ash inlet is formed in the top of the ash storage bin, the ash inlet is communicated with the bottom of an ash collecting hopper through a hose, an ash cleaning port is formed in the side portion of the ash storage bin, the tensioning roller is movably mounted in the ash collecting hopper, a worm wheel is arranged on a middle shaft in the shell, the worm is movably mounted in the shell, the worm is meshed with the worm wheel, a cover shell is arranged on the shell, one end portion of the worm penetrates into the cover shell, a hand wheel is arranged on the end portion of the worm, the cover plate is movably mounted on the cover shell, and a locking mechanism is arranged between the cover plate and the cover shell.

The locking mechanism comprises a padlock, the cover plate is movably arranged on the housing through a hinge, the cover plate and the housing are respectively provided with a lock hook, and the padlock is hooked on the lock hooks of the cover plate and the housing.

The tensioning roller is movably arranged in the dust collecting hopper through a bearing.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:

1. when the tensioning degree of the conveying belt needs to be adjusted, the worm is rotated through the hand wheel, the worm wheel and the middle shaft are driven to rotate through the worm, and the lifting seat, the ash collecting hopper and the tensioning roller wheel are driven to move along the guide post through the external threads on the middle shaft, so that the tensioning degree of the conveying belt is adjusted, the operation is very convenient and fast, and time and labor are saved; still can play certain cushioning effect to the conveyer belt through the spring, make the conveyer belt can carry out the self-tensioning in certain extent and adjust, avoid the conveyer belt to cause the damage to the conveyer belt when load is too big.

2. Install the tensioning running roller in the ash collecting hopper, after the lime-ash attached to on the conveyer belt collapses in tensioning running roller department, fall into the storage ash bin along ash collecting hopper and hose in, regularly clear away the lime-ash in the storage ash bin from deashing mouth department by the staff to avoid the lime-ash to directly drop to the place in to the factory environment cause the pollution.

Drawings

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

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is an enlarged view of a portion of FIG. 1 at B;

FIG. 4 is a cross-sectional view C-C of FIG. 1;

fig. 5 is a schematic view of the present invention at the time of operation.

Detailed Description

As shown in fig. 1, the conveyor belt tensioning device for concrete production comprises a frame 1, a worm 2, a center shaft 3, a support plate 4, a shell 5, a tensioning roller 6, a dust collecting hopper 7, a dust storage bin 8, a spring 10, a lifting seat 11, a hose 12 and a cover plate 13, wherein the support plate 4 and the shell 5 are fixedly installed on the frame 1, the lower part of the center shaft 3 is movably arranged in the shell 5 in a penetrating manner, the upper end part of the center shaft 3 is movably installed on the support plate 4, an external thread 14 is arranged on the upper part of the center shaft 3, a guide post 15 is arranged between the support plate 4 and the shell 5, as shown in fig. 2, a threaded hole 16 and a guide hole 17 are formed in the lifting seat 11, the lifting seat 11 is movably sleeved on the guide post 15 through the guide hole 17, and the center shaft 3 is screwed in the threaded hole 16 of the lifting seat. A vertical rod 18 is arranged on the lifting seat 11, a support 19 is arranged on the dust collecting hopper 7, a vertical hole 20 is formed in the support 19, the support 19 is movably sleeved on the vertical rod 18 through the vertical hole 20, the spring 10 is sleeved on the vertical rod 18, and two end parts of the spring 10 are respectively abutted against the lifting seat 11 and the support 19. The top of the ash storage bin 8 is provided with an ash inlet 21, the ash inlet 21 is communicated with the bottom of the ash collecting hopper 7 through a hose 12, and the side of the ash storage bin 8 is provided with an ash cleaning port 22. As shown in fig. 4, the tension roller 6 is movably mounted in the dust hopper 7 through a bearing 23, as shown in fig. 3, a worm wheel 24 is arranged on the middle shaft 3 in the housing 5, the worm 2 is movably mounted in the housing 5, the worm 2 is engaged with the worm wheel 24, a housing 25 is arranged on the housing 5, one end of the worm 2 is inserted into the housing 25, and a hand wheel 26 is arranged on the end of the worm 2. The cover plate 13 is movably mounted on the housing 25 through a hinge 27, a locking mechanism is arranged between the cover plate 13 and the housing 25, the locking mechanism comprises a padlock 9, a locking hook 28 is respectively arranged on the cover plate 13 and the housing 25, and the padlock 9 is hooked on the locking hooks 28 of the cover plate 13 and the housing 25.

As shown in figure 5, the conveyer belt tensioning device for concrete production of the utility model is operated, an opening 32 is arranged at the bottom of the aerial pipe gallery 29, the conveyer belt 30 of the belt conveying equipment 31 is penetrated out from the opening 32 and wound on the tensioning roller 6, the conveyer belt 30 is tensioned through the tensioning roller 6, when the tensioning degree of the conveyer belt 30 needs to be adjusted, the padlock 9 is firstly unlocked, the cover plate 13 is opened, then the worm 2 is rotated through the hand wheel 26, the worm wheel 24 and the middle shaft 3 are driven to rotate through the worm 2, the lifting seat 11, the ash collecting hopper 7 and the tensioning roller 6 are driven to move along the guide post 15 through the external thread 14 on the middle shaft 3, thereby the tensioning degree of the conveyer belt 30 is adjusted, the conveyer belt 30 can also have a certain buffering effect through the spring 10, so that the conveyer belt 30 can be self-tensioned and adjusted within a certain range, damage to the conveyor belt 30 when the conveyor belt 30 is overloaded is avoided. Because the conveyer belt 30 is greatly bent at the tensioning roller 6, ash attached to the conveyer belt 30 falls off at the position and falls into the ash storage bin 8 along the ash collecting hopper 7 and the hose 12, and the ash in the ash storage bin 8 is periodically cleaned away from the ash cleaning port 22 by workers.

Claims

1. Conveyer belt overspeed device tensioner is used in concrete production, its characterized in that: the ash collecting device comprises a rack, a worm, a middle shaft, a support plate, a shell, a tensioning roller, an ash collecting hopper, an ash storing bin, a spring, a lifting seat, a hose and a cover plate, wherein the support plate and the shell are fixedly arranged on the rack, the lower part of the middle shaft is movably arranged in the shell in a penetrating way, the upper end part of the middle shaft is movably arranged on the support plate, an external thread is arranged on the upper part of the middle shaft, a guide post is arranged between the support plate and the shell, a threaded hole and a guide hole are formed in the lifting seat, the lifting seat is movably sleeved on the guide post through the guide hole, the middle shaft is screwed in the threaded hole of the lifting seat through the external thread, the lifting seat is provided with a vertical rod, a support is arranged on the ash collecting hopper, a vertical hole is formed in the support, the support is movably sleeved on the vertical rod through the vertical hole, the spring is sleeved, the ash collecting device is characterized in that an ash inlet is formed in the top of the ash storage bin, the ash inlet is communicated with the bottom of an ash collecting hopper through a hose, an ash cleaning port is formed in the side portion of the ash storage bin, the tensioning roller is movably mounted in the ash collecting hopper, a worm wheel is arranged on a middle shaft in the shell, the worm is movably mounted in the shell, the worm is meshed with the worm wheel, a cover shell is arranged on the shell, one end portion of the worm penetrates into the cover shell, a hand wheel is arranged on the end portion of the worm, the cover plate is movably mounted on the cover shell, and a locking mechanism is arranged between the cover plate and the cover shell.

2. A conveyor belt tensioning device for concrete production according to claim 1, characterised in that: the locking mechanism comprises a padlock, the cover plate is movably arranged on the housing through a hinge, the cover plate and the housing are respectively provided with a lock hook, and the padlock is hooked on the lock hooks of the cover plate and the housing.

3. A conveyor belt tensioning device for concrete production according to claim 1 or 2, characterised in that: the tensioning roller is movably arranged in the dust collecting hopper through a bearing.