Crawler walking type cement pavement crusher

Abstract

The utility model relates to a crawler walking type cement pavement crusher which comprises a crawler walking mechanism and a machine body, a leveling mechanism is arranged between the crawler walking mechanism and the machine body, a crushing device is installed at the rear end of the machine body, and a rear leveling device is installed at the rear end of the crushing device. A first engine and a second engine are fixedly installed on the machine body, a transmission mechanism is connected between the first engine and the crushing device, and an obstacle removing mechanism is installed on the front side of the machine body. The crushing device crushes the cement pavement into cement blocks meeting grading requirements, and the cement blocks can be directly used as a base layer or a subbase layer, so that the construction progress is accelerated, and the engineering cost is greatly reduced; the leveling mechanism enables the crushing device to be well matched with a to-be-crushed pavement, so that the whole pavement is crushed to the bottom at one time, and the efficiency is improved; the two engines work independently and do not interfere with each other, the first engine is closed when the engine is not broken, the second engine provides power needed by walking, hydraulic pressure and the like, fuel is saved, and the defect that a high-power engine is started for a long time is overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of highway maintenance and repair machinery, and in particular to a crawler-type cement pavement crusher. Background Art

[0002] Cement concrete refers to a general term for engineering composite materials that are made of cement, sand, stone, etc. mixed with water. It has a wide range of uses, and paving roads with cement concrete is one of the main uses of hydraulic concrete. There are still many concrete roads in my country. As the service life of roads paved with cement concrete increases, their bearing capacity and strength will be further weakened. That is, when the hydraulic concrete pavement can no longer bear the service function at the end of its service life, it needs to be treated to construct a new pavement structure. The commonly used process now is the crushing process, that is, the original surface of the road section is crushed by a cement pavement crusher and used as the raw material of the new pavement, as graded crushed stone, directly as the base or subbase. The crushing process does not need to move the damaged cement panel, which not only saves roadbed materials and transportation costs, but also achieves the purpose of environmental protection and energy saving and consumption reduction, speeds up the construction progress, and greatly reduces the project cost.

[0003] The crushing device of the existing cement pavement crusher can generally only crush the cement pavement into larger cement blocks, which cannot be used directly as graded gravel. Instead, other crushing machinery must be used on site to further crush the cement blocks into graded gravel that meets the requirements, or the cement blocks must be transported to a special crushing site for crushing and then spread on the original roadbed. This not only increases the operating process and the overall operating efficiency, but also increases the consumption of manpower and material resources, and significantly increases the operating cost.

[0004] Most concrete roads are wide. When the width of the cement pavement crusher is smaller than the width of the road, it needs to be divided into two sections or even multiple sections for construction. When the cement pavement crusher crushes one section of the pavement and returns to continue crushing the adjacent pavement, the crushed pavement will definitely be higher than the original pavement. At this time, when the cement pavement crusher walks on it, the chassis will be high on one side and low on the other side. The crushing devices on the existing cement pavement crushers are mostly fixed, resulting in a certain inclination angle between the crushing device and the pavement to be crushed, which cannot fit the concrete pavement to be crushed well, resulting in different crushing depths; furthermore, most concrete roads are set to be low inside and high outside at the turning points, and the crushing device may not fit the concrete pavement to be crushed well, so that the concrete pavement on the inside cannot be crushed to the bottom; some cement roads may have long-distance collapsed pavement, which may also cause the crushing device to be unable to fit the concrete pavement to be crushed; the above situation will result in part of the pavement not being crushed to the bottom, leaving residues, and sometimes even having to be reworked, wasting a lot of time, manpower and material resources, and affecting the efficiency of the crushing operation.

[0005] Furthermore, most of the existing cement pavement crushers are equipped with an engine to provide power for all the mechanisms on the crusher. Therefore, the power of the engine is generally large. However, when the non-crushing pavement machinery is transferred to different work locations, although the power required is much smaller than that during normal crushing, the high-power engine is still needed to drive the machinery to move, resulting in redundant engine performance and waste of excess fuel. Utility Model Content

[0006] The utility model aims to provide a crawler-type cement pavement crusher to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crawler-type cement pavement crusher, which includes a crawler walking mechanism and a machine body independently arranged on the crawler walking mechanism, a leveling mechanism is arranged between the crawler walking mechanism and the machine body, a crushing device is installed at the rear end of the machine body, a crushing lifting hydraulic cylinder is connected between the front end of the crushing device and the machine body, both ends of the crushing lifting hydraulic cylinder are connected to the machine body and the crushing device through hinges, and a rear-mounted leveling device is installed at the rear end of the crushing device;

[0008] The first engine and the second engine are fixedly mounted on the machine body, the first engine is located at the rear side of the second engine, a transmission mechanism is connected between the first engine and the crushing device, and an obstacle removal mechanism is mounted on the front side of the machine body.

[0009] Preferably, the leveling mechanism includes an upper connecting seat fixedly installed at the center of the bottom surface of the machine body, the crawler walking mechanism is provided with a load-bearing chassis, a lower connecting seat is installed on the chassis corresponding to the upper connecting seat, the upper connecting seat and the lower connecting seat are hingedly connected by a pin shaft, and a plurality of hydraulic cylinders are installed on the chassis on both sides of the lower connecting seat, and the top of the hydraulic cylinder is connected to the bottom surface of the machine body through a ball head structure.

[0010] Preferably, the crushing device includes a crushing device cover and a crushing main roller rotatably mounted on the crushing device cover, a pair of crushing rollers that cooperate with each other are mounted on the rear side of the crushing main roller, a plurality of crushing knives are fixedly arranged on the surface of the crushing main roller, a hydraulic motor is fixedly mounted on the side wall of the crushing device cover, the output shaft of the hydraulic motor is transmission-connected to the crushing roller, the first engine drives the crushing main roller to rotate through the transmission mechanism, and the second engine provides power for mechanisms and hydraulic systems that require power other than the crushing main roller.

[0011] Preferably, a wear-resistant impact plate and two wear-resistant crushing beams are provided on the inner wall of the crushing device cover, and a triangular material guide frame is provided between the crushing main roller and the pulverizing roller, and the triangular material guide frame is fixedly mounted on the crushing device cover.

[0012] Preferably, the transmission mechanism includes a driving pulley and a passive pulley, the driving pulley is connected to the output shaft of the first engine, the passive pulley is installed on the side of the crushing device cover, a tensioner is arranged between the driving pulley and the passive pulley, and the passive pulley is connected to the crushing main roller through a reducer.

[0013] Preferably, the rear leveling device is hingedly installed at the rear end of the crushing device, and a leveling device lifting hydraulic cylinder is connected between the rear leveling device and the outer shell of the crushing device. Both ends of the leveling device lifting hydraulic cylinder are hingedly connected to the top surface of the rear leveling device and the outer shell of the crushing device.

[0014] Beneficial effects: Compared with the prior art, the beneficial effects of the utility model are:

[0015] The main crushing roller rotates to crush the road surface. The crushed cement blocks are thrown upward into the crushing device under the action of the main crushing roller and hit the impact plate and the wear-resistant crushing beam. After multiple stages of crushing, they fall between the crushing rollers at the rear and are finally crushed into cement blocks that meet the grading requirements. They can be directly used as the base or subbase. The crushing efficiency is high, which speeds up the construction progress and greatly reduces the project cost.

[0016] The machine body with the crushing device installed is hinged to the crawler walking mechanism below through the upper connecting seat and the lower connecting seat. The extension and retraction of the hydraulic cylinders on both sides realizes that the whole machine body can have a certain inclination angle with the chassis. By adjusting the extension and retraction of the hydraulic cylinders, the crushing device can better fit the road surface to be crushed, so that the entire road surface can be crushed to the bottom at one time, which improves the efficiency of the crushing operation.

[0017] The first engine and the second engine are set up, the first engine only drives the crushing main roller to rotate, and the crawler walking mechanism and the hydraulic system of the crusher other than the crushing main roller are powered by the second engine. The power of the second engine is smaller than that of the first engine. The two engines work independently without interfering with each other. When the road surface is not crushed, the first engine is turned off. At this time, the second engine provides the power required for walking, hydraulics, etc., which saves fuel expenses and solves the disadvantage of turning on a high-power engine for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The utility model is a three-dimensional structural schematic diagram of a crawler-type cement pavement crusher.

[0019] Figure 2 for Figure 1 main view.

[0020] Figure 3 The specific structural diagram of the leveling mechanism (from Figure 1 Observe from the left side).

[0021] Figure 4 Schematic diagram of the internal structure of the crushing device.

[0022] In the attached drawings: 1- crawler walking mechanism, 2- machine body, 3- crushing device, 301- crushing main roller, 302- crushing roller, 303- crushing knife, 304- crushing device cover, 305- wear-resistant crushing beam, 306- wear-resistant impact plate, 307- triangular material guide frame, 308- hydraulic motor, 4- rear leveling device, 5- crushing lifting hydraulic cylinder, 6- first engine, 7- second engine, 8- obstacle removal mechanism, 9- upper connecting seat, 10- lower connecting seat, 11- chassis, 12- hydraulic cylinder, 13- leveling device lifting hydraulic cylinder, 14- transmission mechanism, 1401- driving pulley, 1402- passive pulley, 1403- tensioning pulley. DETAILED DESCRIPTION

[0023] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0025] Example

[0026] Please refer to the drawings of the specification. In the embodiment of the utility model, a crawler-type cement pavement crusher comprises a crawler walking mechanism 1 and a body 2 independently arranged on the crawler walking mechanism 1, a leveling mechanism is arranged between the crawler walking mechanism 1 and the body 2, a crushing device 3 is installed at the rear end of the body 2, a crushing lifting hydraulic cylinder 5 is connected between the front end of the crushing device 3 and the body 2, both ends of the crushing lifting hydraulic cylinder 5 are connected to the body 2 and the crushing device 3 by hinges, and a rear leveling device 4 is installed at the rear end of the crushing device 3;

[0027] The first engine 6 and the second engine 7 are fixedly mounted on the machine body 2, the first engine 6 is located at the rear side of the second engine 7, a transmission mechanism 14 is connected between the first engine 6 and the crushing device 3, and an obstacle clearing mechanism 8 is installed at the front side of the machine body 2. The obstacle clearing mechanism 8 can clear obstacles on the cement road surface to prevent debris from damaging the crushing mechanism.

[0028] Furthermore, the leveling mechanism includes an upper connecting seat 9 fixedly installed at the center of the bottom surface of the body 2, and the crawler walking mechanism 1 is provided with a load-bearing chassis 11, and a lower connecting seat 10 is installed on the chassis 11 corresponding to the upper connecting seat 9. The upper connecting seat 9 and the lower connecting seat 10 are hingedly connected by a pin shaft, and a plurality of hydraulic cylinders 12 are installed on the chassis 11 on both sides of the lower connecting seat 10, and the top of the hydraulic cylinder 7 is connected to the bottom surface of the body 2 through a ball head structure.

[0029] Furthermore, the crushing device 3 includes a crushing device housing 304 and a crushing main roller 301 rotatably mounted on the crushing device housing 304, a pair of mutually matching crushing rollers 302 are mounted on the rear side of the crushing main roller 301, a plurality of crushing knives 303 are fixedly arranged on the surface of the crushing main roller 301, a hydraulic motor 308 is fixedly mounted on the side wall of the crushing device housing 304, the output shaft of the hydraulic motor 308 is transmission-connected with the crushing roller 302, the first engine 6 drives the crushing main roller 301 to rotate through the transmission mechanism 14, the second engine 7 provides power for the mechanism and hydraulic system that need to be powered except the crushing main roller 301, and the crushing device A wear-resistant impact plate 306 and two wear-resistant crushing beams 305 are arranged on the inner wall of the cover shell 304, a triangular guide frame 307 is arranged between the crushing main roller 301 and the crushing roller 302, and the triangular guide frame 307 is fixedly installed on the crushing device cover shell 304, the transmission mechanism 14 includes a driving pulley 1401 and a passive pulley 1402, the driving pulley 1401 is connected to the output shaft of the first engine 6, and the passive pulley 1402 is installed on the side of the crushing device cover shell 304, a tensioner 1403 is arranged between the driving pulley 1401 and the passive pulley 1402, and the passive pulley 1402 is connected to the crushing main roller 301 through a reducer.

[0030] Specifically, the rear leveling device 4 is hingedly installed at the rear end of the crushing device 3, and a leveling device lifting hydraulic cylinder 13 is connected between the rear leveling device 4 and the outer shell of the crushing device 3, and both ends of the leveling device lifting hydraulic cylinder 13 are hingedly connected to the top surface of the rear leveling device 4 and the outer shell of the crushing device 3.

[0031] In the utility model, the main crushing roller rotates to crush the road surface. The crushed cement blocks are thrown upward into the crushing device under the action of the main crushing roller and hit the impact plate and the wear-resistant crushing beam. After multi-stage crushing, they fall between the crushing rollers at the rear and are finally crushed into cement blocks that meet the grading requirements. They can be directly used as the base or subbase. The crushing efficiency is high, the construction progress is accelerated, and the engineering cost is greatly reduced. The body equipped with the crushing device is hinged to the crawler walking mechanism below through the upper connecting seat and the lower connecting seat. The extension and retraction of the hydraulic cylinders on both sides are used to realize that the whole body can have a certain inclination angle with the chassis. The extension and retraction of the hydraulic cylinders can be adjusted. The reduction in volume can make the crushing device better fit the road surface to be crushed, so that the entire road surface can be crushed to the bottom at one time, which improves the efficiency of the crushing operation; the setting of the first engine and the second engine, the first engine only drives the crushing main roller to rotate, and the crawler walking mechanism and the hydraulic system of the crusher other than the crushing main roller are all powered by the second engine. The power of the second engine is less than that of the first engine. The two engines work independently without interfering with each other. When the road surface is not crushed, the first engine is turned off. At this time, the second engine provides the power required for walking, hydraulics, etc., which saves fuel expenses and solves the disadvantage of turning on a high-power engine for a long time.

[0032] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above are only specific embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

[0033] In the description of the present invention, it is necessary to understand that the terms indicating orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

Claims

1. A crawler-type cement pavement crusher, characterized in that: The invention comprises a crawler walking mechanism (1) and a machine body (2) independently arranged on the crawler walking mechanism (1); a leveling mechanism is arranged between the crawler walking mechanism (1) and the machine body (2); a crushing device (3) is installed at the rear end of the machine body (2); a crushing lifting hydraulic cylinder (5) is connected between the front end of the crushing device (3) and the machine body (2); both ends of the crushing lifting hydraulic cylinder (5) are connected to the machine body (2) and the crushing device (3) by hinges; and a rear leveling device (4) is installed at the rear end of the crushing device (3); A first engine (6) and a second engine (7) are fixedly mounted on the machine body (2); the first engine (6) is located at the rear side of the second engine (7); a transmission mechanism (14) is connected between the first engine (6) and the crushing device (3); and a barrier clearing mechanism (8) is mounted on the front side of the machine body (2).

2. The crawler-type cement pavement crusher according to claim 1 is characterized in that: The leveling mechanism comprises an upper connecting seat (9) fixedly mounted at the center of the bottom surface of the machine body (2); a load-bearing chassis (11) is provided on the crawler walking mechanism (1); a lower connecting seat (10) is mounted on the chassis (11) corresponding to the upper connecting seat (9); the upper connecting seat (9) and the lower connecting seat (10) are hingedly connected via a pin shaft; a plurality of hydraulic cylinders (12) are mounted on the chassis (11) on both sides of the lower connecting seat (10); and the top ends of the hydraulic cylinders (12) are connected to the bottom surface of the machine body (2) via a ball head structure.

3. The crawler-type cement pavement crusher according to claim 1 is characterized in that: The crushing device (3) comprises a crushing device housing (304) and a crushing main roller (301) rotatably mounted on the crushing device housing (304); a pair of mutually matching crushing rollers (302) are mounted on the rear side of the crushing main roller (301); a plurality of crushing knives (303) are fixedly mounted on the surface of the crushing main roller (301); a hydraulic motor (308) is fixedly mounted on the side wall of the crushing device housing (304); an output shaft of the hydraulic motor (308) is transmission-connected to the crushing roller (302); the first engine (6) drives the crushing main roller (301) to rotate through the transmission mechanism (14); and the second engine (7) provides power to mechanisms and hydraulic systems that require power other than the crushing main roller (301).

4. The crawler-type cement pavement crusher according to claim 3 is characterized in that: A wear-resistant impact plate (306) and two wear-resistant crushing beams (305) are arranged on the inner wall of the crushing device cover (304), and a triangular material guide frame (307) is arranged between the crushing main roller (301) and the crushing roller (302), and the triangular material guide frame (307) is fixedly mounted on the crushing device cover (304).

5. The crawler-type cement pavement crusher according to claim 3 is characterized in that: The transmission mechanism (14) comprises a driving pulley (1401) and a passive pulley (1402), wherein the driving pulley (1401) is connected to the output shaft of the first engine (6), and the passive pulley (1402) is installed on the side of the crushing device cover (304), a tensioner (1403) is arranged between the driving pulley (1401) and the passive pulley (1402), and the passive pulley (1402) is connected to the crushing main roller (301) via a reducer.

6. The crawler-type cement pavement crusher according to claim 1 is characterized in that: The rear leveling device (4) is hingedly mounted at the rear end of the crushing device (3); a leveling device lifting hydraulic cylinder (13) is connected between the rear leveling device (4) and the outer shell of the crushing device (3); both ends of the leveling device lifting hydraulic cylinder (13) are hingedly connected to the top surface of the rear leveling device (4) and the outer shell of the crushing device (3).

Images