CN214650854U

CN214650854U - Cement tank truck top cover switch structure

Info

Publication number: CN214650854U
Application number: CN202120348599.3U
Authority: CN
Inventors: 吴朝勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-07
Filing date: 2021-02-07
Publication date: 2021-11-09
Anticipated expiration: 2031-02-07

Abstract

The utility model belongs to a cement tank truck top cover switch structure, the top cover clamps on a rotation axis through the suspension hoop, the rotation axis is connected to the supporting axle through the cantilever, supporting axle one end passes through the gear engagement on the rack, actuating mechanism push-and-pull rack linear motion, drive supporting axle rotation, the cantilever drives the rotation axis and rotates around the supporting axle center, thereby drive the top cover to open along with the rotation of rotating axle to the top or to close along with the rotation of rotating axle to the bottom, need not manual operation, time saving and labor saving, simple structure, convenient operation, high safety factor; when the top cover is closed by the hydraulic cylinder through the transmission of the traction shaft and the rotating shaft, the two ends of the rotating shaft are locked by the rotating lock catches of the safety hooks and are controlled to be locked by the safety electromagnetic switches, so that the locking mechanism is stable and reliable.

Description

Cement tank truck top cover switch structure

Technical Field

The utility model belongs to the technical field of heavy transportation equipment makes, concretely relates to cement tank car roof switch structure.

Background

In the transportation industry, a heavy tank car is often required to transport cement and oil materials, a tank opening is generally arranged at the top of the heavy tank car when the heavy tank car loads and unloads the materials, and the tank opening needs to be closed by a top cover after the materials are loaded and unloaded; the top cover of the traditional cement tank truck or oil tank truck is generally hinged above a tank opening, an operator needs to climb onto the top of the truck when opening or closing the top cover and manually rotate the top cover to open or close the tank opening through manpower, the top cover of the heavy tank truck is usually large in size and heavy in weight, the operator needs to spend heavy cyclone rotation to open the top cover when manually opening or closing the top cover and needs to continuously rotate until the tank opening is completely exposed, the operator is inconvenient to operate and wastes much time and energy in the manual rotation opening process, the operator is easy to fall off due to slipping in the operation process, the operator is also easy to fall down backward due to slipping, the heavy tank truck is usually high in height, casualties and accidents caused by falling are serious, pressure difference exists in the internal environment of the tank body when transporting cement or oil, and outward burst impact of internal gas due to the pressure difference when the top cover is opened, a flying operator; in the opening and canning processes, operators need to observe the canning condition at any time on the car roof, dust flies, and the operators are easy to fall off the car bottom when dodging; therefore, the switch structure of the top cover of the heavy tank car in the prior art has potential safety hazards.

SUMMERY OF THE UTILITY MODEL

In order to solve the problems existing in the prior art, the utility model aims to provide a need not the manual rotatory top cap of manpower, have locking function, simple structure, convenient operation, safe and reliable's cement tank car top cap switch structure.

The utility model discloses the technical scheme who adopts does:

a top cover switch structure of a cement tank truck comprises a rotating shaft arranged above a top cover, a supporting shaft parallel to the rotating shaft is arranged on the outer side of the top cover, the supporting shaft is supported and installed through a bearing and a bearing seat, the rotating shaft is connected to the supporting shaft through a cantilever, a gear is fixedly arranged at one end of the supporting shaft and meshed on a rack, and a driving mechanism capable of driving the rack to move linearly is connected to one end of the rack.

The rotating shaft is fixed above the top cover through a suspension hoop.

One end of the cantilever is fixedly connected to the supporting shaft, the other end of the cantilever is provided with a bearing hole, and the rotating shaft is rotatably installed on the cantilever through the matching of the bearing and the bearing hole.

The driving mechanism is a hydraulic cylinder, and a telescopic rod of the hydraulic cylinder is fixedly connected to the end part of the rack; the oil pump of the hydraulic cylinder is connected to a remote controller through wireless communication.

And gear clearance adjusting mechanisms are respectively arranged at the positions, close to the two ends, of the rack.

The gear clearance adjusting mechanism comprises an inverted U-shaped fixed seat, the fixed seat is covered on a rack, a bearing is arranged below the rack, and an inner ring of the bearing is fixedly sleeved on a pin shaft; guide grooves are formed in the two side plates of the fixing seat, an inverted U-shaped adjusting hoof is further arranged outside the fixing seat, an adjusting bolt is arranged in the middle of an adjusting hoof top plate, and the lower end of the adjusting bolt penetrates through the adjusting hoof top plate and abuts against the fixing seat top plate; two ends of the pin shaft respectively penetrate through the guide grooves and then are fixedly connected to the two side plates of the adjusting hoof.

The end part of the rotating shaft is provided with a safety hook in a matching way, and the safety hook is hinged and installed through a hinge shaft.

And the other side of the rotating shaft relative to the supporting shaft is provided with a safety electromagnetic switch which is connected to a safety hook through a slide eye.

The two ends of the rotating shaft are both provided with a safety hook in a matching way, and the safety hook is hinged and installed through a hinge shaft.

The driving mechanism is a hydraulic cylinder, an air cylinder or a motor.

The utility model has the advantages that:

a top cover switch structure of a cement tank truck is characterized in that a top cover is clamped on a rotating shaft through a suspension hoop, the rotating shaft is connected to a supporting shaft through a cantilever, one end of the supporting shaft is meshed on a rack through a gear, a driving mechanism pushes and pulls the rack to move linearly to drive the supporting shaft to rotate, and the cantilever drives the rotating shaft to rotate around the axis of the supporting shaft, so that the top cover is driven to be opened along with the rotation of the rotating shaft upwards or closed along with the rotation of the rotating shaft downwards, manual operation is not needed, time and labor are saved, the structure is simple, the operation is convenient, and the safety coefficient is high; when the top cover is closed by the hydraulic cylinder through the transmission of the traction shaft and the rotating shaft, the two ends of the rotating shaft are locked by the rotating lock catches of the safety hooks and are controlled to be locked by the safety electromagnetic switches, so that the locking mechanism is stable and reliable.

Drawings

FIG. 1 is a schematic view of a switch structure of a roof of a cement tank truck according to the present invention;

FIG. 2 is an enlarged schematic view of the structure of the rack and gear clearance adjusting mechanism of the top cover switch structure of the cement tank truck of the present invention;

FIG. 3 is an enlarged schematic view of a safety hook structure of the switch structure of the top cover of the cement tank truck of the present invention;

fig. 4 is an enlarged schematic view of the suspension hoop structure of the top cover switch structure of the cement tank truck of the utility model.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in FIG. 1, a preferred embodiment of the present invention provides a switch structure of a roof of a cement tank truck, based on the tank opening and handle cover structure of a conventional cement tank truck, that is, a circular roof 1 is disposed on the circular tank opening at the top of the cement tank truck, a rotation shaft 2 is disposed above the roof 1 along the longitudinal direction, a support shaft 3 is further disposed at the top of the cement tank truck at the position of one side of the roof 1, the support shaft 3 is disposed side by side with the rotation shaft 2, the support shaft 3 is supported and mounted on the top of the cement tank truck through a bearing and a bearing seat 4, the portion of the rotation shaft 2 near the two ends extends out of the roof, the portion of the rotation shaft 2 outside the roof is connected to the support shaft 3 through two cantilevers 14, a gear 5 is fixedly disposed at one end of the support shaft 3, the gear 5 is engaged with a linear rack 6, a driving mechanism is connected to one end of the rack 6, the driving mechanism drives the rack 6 to move along a straight line, the gear 5 and the rack 6 are in meshing transmission, the driving gear 5 rotates around the axis of the supporting shaft 3, so that the supporting shaft 3 is driven to rotate around the axis, the cantilever 14 rotates along with the supporting shaft 3, meanwhile, the rotating shaft 2 is driven to rotate around the axis of the supporting shaft 3, and finally, the top cover 1 is driven to rotate around the axis of the supporting shaft 3.

As shown in fig. 1 and 2, when materials need to be loaded and unloaded, a driving mechanism pulls a rack 6 to move linearly to the right, a gear 5 correspondingly rotates anticlockwise, a cantilever 14 and a rotating shaft 2 drive a top cover 1 to rotate anticlockwise around a supporting shaft 3 in the circumferential direction, and when the supporting shaft 3 rotates anticlockwise by 90 degrees, the top cover 1 rotates to the highest point, namely, a tank opening is completely opened; after the materials are loaded and unloaded, the driving mechanism pushes the rack 6 to linearly move leftwards and reset, the gear 5 correspondingly rotates clockwise, the cantilever 14 and the rotating shaft 2 drive the top cover 1 to rotate clockwise around the supporting shaft 3 in the circumferential direction, and after the supporting shaft 3 rotates clockwise by 90 degrees, the top cover 1 returns to the lowest point in the rotating motion and covers the tank opening; set up seal structure on the contact surface of top cap 1 and jar mouth, after top cap 1 covers on the jar mouth, actuating mechanism can last output thrust, makes and carries the cantilever and continuously keeps the state that compresses tightly to the top cap. The opening or closing of the top cover 1 can be realized without manual operation; time and labor are saved, the structure is simple, the operation is convenient, and the safety factor is high.

Furthermore, the rotating shaft 2 is fixed above the top cover 1 through the suspension hoop 12, so that the disassembly and assembly operation can be conveniently carried out according to the use requirement; two or more suspension hoops 12 can be uniformly arranged along the axial direction of the rotating shaft, so that the mounting and connecting strength of the rotating shaft and the top cover is improved, and the stress between the rotating shaft and the top cover is balanced.

One end of the cantilever 14 is fixedly connected to the supporting shaft 3, the other end of the cantilever 14 is provided with a bearing hole, and the rotating shaft 2 is rotatably mounted on the cantilever 14 through the matching of the bearing and the bearing hole; during the rotation of the rotating shaft 14 around the supporting shaft 3, the rotating shaft 14 rotates simultaneously through the bearing due to the self-gravity of the top cover 1, so that the top cover always keeps the state that the contact surface faces downwards.

Furthermore, the driving mechanism adopts a hydraulic cylinder 8, and a telescopic rod of the hydraulic cylinder 8 is fixedly connected to the right end part of the rack 6; and the oil pump of pneumatic cylinder 8 passes through wireless communication and is connected to a remote controller, and operating personnel need not climb to the cement tank car top, just can control the top cap and open or close through the remote controller under the car, thoroughly stops the potential safety hazard.

Further, a gear clearance adjusting mechanism 7 is respectively arranged on the rack 6 near the two ends to adapt to the clearance change between the gear and the rack.

The specific structure of the gear clearance adjustment mechanism 7 is as follows:

the positions of the rack close to the two ends are respectively provided with a fixed seat 9 in an inverted U-shaped structure, the fixed seats 9 are covered on the rack 6, and the lower ends of the fixed seats 9 are fixedly welded on the top of the cement tank truck; a bearing 73 is arranged below the rack 6 along the vertical direction, the inner ring of the bearing 73 is fixedly sleeved on a pin shaft 74, and the rack 6 is located on the outer ring of the bearing 73; the two side plates of the fixed seat 9 are respectively provided with a guide groove 91, the outside of the fixed seat 9 is further provided with an adjusting shoe 72 which is also in an inverted U-shaped structure, the middle part of the top plate of the adjusting shoe 72 is connected with an adjusting bolt 71 in a matching way through a threaded hole, the lower end of the adjusting bolt 71 sequentially penetrates through the top plate of the adjusting shoe 71 and then abuts against the top plate of the fixed seat 9, and the two ends of a pin shaft 74 respectively penetrate through the guide grooves of the two side plates of the fixed seat 9 and then are fixedly connected to the two side plates of the adjusting shoe 72; when the driving mechanism pushes and pulls the rack to move linearly, the bearing 73 rotates along with the rack, the friction resistance of the rack is small, and the operation is stable and reliable; when the gap is too large due to abrasion of the gear or the rack, the adjusting bolt 71 is rotated, the adjusting shoe is moved upwards by the reaction force between the adjusting bolt and the top surface of the fixed seat, so that the bearing is driven to move upwards along the guide grooves of the two side plates of the fixed seat 9 through the pin shaft, the rack is pushed by the bearing to move upwards, the gap between the rack and the gear is adjusted, and the gear and the rack are ensured to be meshed stably and reliably; and vice versa.

Guide grooves 91 are formed in two side plates of the fixed seat, an inverted U-shaped adjusting shoe is arranged outside the fixed seat 9, an adjusting bolt is arranged in the middle of an adjusting shoe top plate, and the lower end of the adjusting bolt penetrates through the adjusting shoe top plate and abuts against the fixed seat top plate; two ends of the pin shaft respectively penetrate through the guide grooves and then are fixedly connected to the two side plates of the adjusting hoof

Furthermore, a safety hook 12 is further arranged on the outer side of the end part of the rotating shaft 2 in a matched mode, the safety hook 12 is hinged to the roof of the cement tank car through a hinge shaft, the opening direction of the safety hook faces the mounting side direction of the supporting shaft and the rotating shaft, after the rotating shaft rotates clockwise around the supporting shaft to the lowest point and closes the top cover, the safety hook rotates anticlockwise around the hinge shaft to be buckled at the end of the rotating shaft, the rotating shaft is limited and fixedly locked inside the safety hook, and displacement looseness cannot be generated; when the top cover is opened, the safety hook needs to be opened first, and the rotating shaft is driven by the hydraulic cylinder through gear and rack transmission to leave the safety hook for rotating motion.

Still further, a safety electromagnetic switch 9 is arranged on the other side, opposite to the traction shaft 3, of the rotating shaft 2, safety hooks at two ends of the rotating shaft are respectively connected with a sliding hole, the safety electromagnetic switch 9 is connected to the safety hooks through the sliding holes, and after the safety hooks rotate around the hinge shaft to clamp the rotating shaft, the safety hooks are controlled to be locked through the safety electromagnetic switch, so that the safety hooks are prevented from being opened by misoperation, and the safety hooks are ensured to be reliably locked.

Can also all cooperate respectively in the both ends outside of rotation axis two 2 to set up a safety hook 12, every safety hook 12 is articulated to be installed on the roof of cement tank car through an articulated axle respectively, through two safety hooks with the rotation axis both ends all spacing fixed lock detains inside the safety hook simultaneously, ensures that the top cap atress is balanced, closes reliable and stable, even the inside impact force that produces of tank car, also can not assault and open the top cap.

The specific mounting structure of the hydraulic cylinder is as follows: an inverted T-shaped fixed seat is fixedly installed at the top of the cement tank truck corresponding to the position below the tail end installation groove of the hydraulic cylinder, and the tail end of the hydraulic cylinder is fixedly supported and installed through the fixed seat; the telescopic rod end of the hydraulic cylinder is directly clamped and fixed at the end part of the rack through the mounting fork plate.

Finally, the driving mechanism can select a hydraulic cylinder, an air cylinder or a motor, and can perform adaptive selection according to different structures of the tank car, different types of transported materials and different pressures in the car during material transportation, and the corresponding fixed supporting structure can also perform adaptive selection.

The top cover is clamped on a rotating shaft through the suspension hoop, the rotating shaft is connected to the supporting shaft through the cantilever, one end of the supporting shaft is meshed on the rack through the gear, the driving mechanism pushes and pulls the rack to move linearly to drive the supporting shaft to rotate, and the cantilever drives the rotating shaft to rotate around the axis of the supporting shaft, so that the top cover is driven to be opened along with the rotation of the rotating shaft in the axial direction or closed along with the rotation of the rotating shaft in the downward direction, manual operation is not needed, time and labor are saved, the structure is simple, the operation is convenient, and the safety factor is high; when the top cover is closed by the hydraulic cylinder through the transmission of the traction shaft and the rotating shaft, the two ends of the rotating shaft are locked by the rotating lock catches of the safety hooks and are controlled to be locked by the safety electromagnetic switches, so that the locking mechanism is stable and reliable.

The present invention is not limited to the above-mentioned optional embodiments, and any other products in various forms can be obtained by anyone under the teaching of the present invention, and any changes in the shape or structure thereof, all the technical solutions falling within the scope of the present invention, are within the protection scope of the present invention.

Claims

1. The utility model provides a cement tank car roof switch structure which characterized in that: the device comprises a rotating shaft arranged above a top cover, wherein a supporting shaft parallel to the rotating shaft is arranged on the outer side of the top cover, the supporting shaft is supported and installed through a bearing and a bearing seat, the rotating shaft is connected to the supporting shaft through a cantilever, a gear is fixedly arranged at one end of the supporting shaft, the gear is meshed on a rack, and a driving mechanism capable of driving the rack to move linearly is connected to one end of the rack.

2. The cement silo car roof switch structure of claim 1, characterized in that: the rotating shaft is fixed above the top cover through a suspension hoop.

3. The cement silo car roof switch structure of claim 1, characterized in that: one end of the cantilever is fixedly connected to the supporting shaft, the other end of the cantilever is provided with a bearing hole, and the rotating shaft is rotatably installed on the cantilever through the matching of the bearing and the bearing hole.

4. The cement silo car roof switch structure of claim 3, characterized in that: the driving mechanism is a hydraulic cylinder, and a telescopic rod of the hydraulic cylinder is fixedly connected to the end part of the rack; the oil pump of the hydraulic cylinder is connected to a remote controller through wireless communication.

5. The cement silo car roof switch structure of claim 3, characterized in that: and gear clearance adjusting mechanisms are respectively arranged at the positions, close to the two ends, of the rack.

6. The cement silo car roof switch structure of claim 5, characterized in that: the gear clearance adjusting mechanism comprises an inverted U-shaped fixed seat, the fixed seat is covered on a rack, a bearing is arranged below the rack, and an inner ring of the bearing is fixedly sleeved on a pin shaft; guide grooves are formed in the two side plates of the fixing seat, an inverted U-shaped adjusting hoof is further arranged outside the fixing seat, an adjusting bolt is arranged in the middle of an adjusting hoof top plate, and the lower end of the adjusting bolt penetrates through the adjusting hoof top plate and abuts against the fixing seat top plate; two ends of the pin shaft respectively penetrate through the guide grooves and then are fixedly connected to the two side plates of the adjusting hoof.

7. The cement silo car roof switch structure of claim 1, characterized in that: the end part of the rotating shaft is provided with a safety hook in a matching way, and the safety hook is hinged and installed through a hinge shaft.

8. The cement silo car roof switch structure of claim 1, characterized in that: and the other side of the rotating shaft relative to the supporting shaft is provided with a safety electromagnetic switch which is connected to a safety hook through a slide eye.

9. The cement silo car roof switch structure of claim 1, characterized in that: the two ends of the rotating shaft are both provided with a safety hook in a matching way, and the safety hook is hinged and installed through a hinge shaft.

10. The cement silo car roof switch structure of claim 9, wherein: the driving mechanism is a hydraulic cylinder, an air cylinder or a motor.