CN214994228U - Rack of scarifier, beam of scarifier, scarifier and engineering machinery - Google Patents

Abstract

The invention relates to the field of scarifiers and discloses a tooth frame of a scarifier, a beam of the scarifier, the scarifier and engineering machinery. The rack is used for mounting a rack of the ripper and comprises a reinforcing plate and a first side plate and a second side plate which are opposite to and spaced apart from each other; the space between the first side plate and the second side plate is used for clamping the root part of the rack; through holes for hinging the racks are formed in the positions, opposite to each other, of the first side plate and the second side plate; the reinforcing plate is manufactured independently of the first side plate and the second side plate and can be fixed between the first side plate and the second side plate for preventing the rack from rotating relative to the first side plate and the second side plate. The technical scheme provided by the invention can inhibit the rack from cracking, reduce the gap between the rack and the rack, improve the strength and toughness of the rack, simplify the shape of the rack, reduce the weight and cost of the rack and protect the environment better.

Description

Rack of scarifier, beam of scarifier, scarifier and engineering machinery

Technical Field

The invention relates to the field of scarifiers, in particular to a tooth frame of a scarifier, and further relates to a beam of the scarifier, the scarifier and engineering machinery.

Background

A ripper, also called a ripper, is an optional working device for a construction machine, such as a bulldozer or an excavator, and is generally installed at the rear of the construction machine, and functions to loosen or crack relatively hard soil or sandstone through a rack by using traction force of the construction machine, so that other construction equipment at a later stage can push or carry loose soil or rocks away. Use the utility model discloses the agitator in fig. 3 that the embodiment provided is as an example, and common agitator mainly includes parts such as right branch seat 1, left branch seat 2, upper connecting rod 3, lower connecting rod 4, lift cylinder 5, crossbeam 6, rack 7, round pin axle 8, and concrete relation of connection and theory of operation between each part have already belonged to prior art, and the invention is not repeated here in detail.

As shown in fig. 1-2, in the prior art, a rack 7 is mounted on a rack 6-2 in a beam 6 through a pin 8, and in order to prevent an excessive impact load caused by an excessive clearance, a design clearance a between the rack 7 and the rack 6-2 is small. The tooth rack 6-2 is a steel casting, and stress strength of different parts of the tooth rack 6-2 is different in the working process of the scarifier, so that stress difference of all parts is large, the shape of the casting is very complex, and the requirement on the quality of the casting blank is high. In addition, in the prior art, the rack 6-2 is a steel casting, and the following technical problems exist in the actual manufacturing process: 1) the casting size error of the steel casting is large, and the design clearance is usually difficult to ensure; 2) the cast steel tooth rack 6-2 is complex in shape and uneven in wall thickness, casting defects are easy to occur, when the position B has defects, the position is easy to crack under the action of impact load, and in order to prevent the tooth rack from cracking at the position B caused by the casting defects, a reinforcing plate 6-4 is additionally arranged on the tooth rack and is limited by the sectional shape and the manufacturing process, the reinforcing effect of the reinforcing plate is limited, and the protective effect is also very limited; 3) although the stress of only individual parts of the casting is very large, the casting cannot use different materials at different parts, so that the requirement on the mechanical property of the whole casting material is very high; 4) the whole casting machine has larger size, larger weight and higher cost; 5) influenced by national environmental protection, the procurement of castings has certain adverse effects on production organization.

Disclosure of Invention

The invention aims to overcome the technical problems in the prior art at least to a certain extent, and provides a technical scheme which can inhibit the tooth rack from cracking, reduce the gap between the rack and the tooth rack, reduce the mechanical performance requirement of the scarifier on the whole material of the tooth rack, improve the strength and toughness of the tooth rack, simplify the shape and structure of the tooth rack, reduce the weight and cost of the tooth rack, and is better environment-friendly.

In order to achieve the above object, a first aspect of the present invention provides a rack of a ripper for mounting a rack of the ripper, the rack including a reinforcing plate, and first and second side plates facing and spaced apart from each other; the space between the first side plate and the second side plate is used for clamping the root part of the rack; through holes for hinging the racks are formed in the positions, opposite to each other, of the first side plate and the second side plate; the reinforcing plate is manufactured independently of the first side plate and the second side plate and can be fixed between the first side plate and the second side plate for preventing the rack from rotating relative to the first side plate and the second side plate.

Preferably, an opening is formed in one side of the first side plate and the second side plate, the side being directed toward the connecting pipe of the ripper, and the opening is shaped to conform to a cross-sectional shape of the connecting pipe so as to be able to adhere to an outer wall surface of the connecting pipe along a circumferential direction of the connecting pipe.

Preferably, the cross section of the connecting pipe is circular, and the opening is circular arc-shaped.

Preferably, in a normal installation state, one side of the top of each of the first side plate and the second side plate is formed into a chamfered arc, the through hole is close to and concentric with the chamfered arc, and the chamfered arc of each of the first side plate and the second side plate is far away from the connecting pipe.

Preferably, in a normal mounting state, a portion of the first side plate and the second side plate, which is far away from the connecting pipe, extends downward relative to a portion of the first side plate and the second side plate, which is near the connecting pipe.

Preferably, in a normal installation state, the reinforcing plates include a first reinforcing plate and a second reinforcing plate respectively fixed to upper and lower portions of one side of the first side plate and one side of the second side plate, which are close to the connecting pipe of the ripper, and a third reinforcing plate and a fourth reinforcing plate fixed to one sides of the first side plate and the second side plate, which are far away from the connecting pipe; the fourth reinforcing plate is positioned outside the bottom end of the third reinforcing plate and connected with the third reinforcing plate; the longitudinal direction of the third reinforcing plate is perpendicular to the axial direction of the connecting pipe.

Based on the tooth rack provided by the first aspect of the invention, the second aspect of the invention provides a beam of the ripper, the beam comprises a connecting pipe and a tooth rack fixed on the outer wall surface of the connecting pipe, and the tooth rack is the tooth rack provided by the first aspect of the invention.

Preferably, a supporting plate for reinforcing the structural rigidity of the lateral stress of the tooth rack is fixed between the outer side surfaces of the first side plate and the second side plate and the outer wall surface of the connecting pipe;

an opening is formed in one side, facing the connecting pipe, of the first side plate and the second side plate, the opening is attached to a part of the outer wall surface of the connecting pipe in the circumferential direction, a reinforcing connecting plate is fixed to the other part of the outer wall surface in the circumferential direction, and two ends of the reinforcing connecting plate are fixedly connected with two ends of the opening.

Based on the beam provided by the second aspect of the invention, the third aspect of the invention provides a ripper, which comprises the beam of the ripper according to the second aspect of the invention.

The construction machine according to a fourth aspect of the present invention is a ripper provided in the third aspect of the present invention, and the ripper is the ripper according to the third aspect of the present invention.

The technical scheme provided by the invention has the following beneficial effects:

the toothed rack of the ripper provided by the invention comprises a first side plate, a second side plate and a reinforcing plate which is independently manufactured from the first side plate and the second side plate, wherein the reinforcing plate is used for preventing a rack from rotating relative to the first side plate and the second side plate; therefore, the rack is limited through the independent reinforcing plate, and the rack can be prevented from cracking due to impact load of the rack, so that the rack is better protected.

In addition, the reinforcing plate is manufactured independently of the first side plate and the second side plate. Therefore, when the rack is actually installed, the rack can be fixed between the first side plate and the second side plate through the pin shaft, the rack is limited by the reinforcing plate, and therefore the gap A between the reinforcing plate and the rack can be accurately controlled, so that the gap has a small enough distance, and the reinforcing plate can meet the impact load of the rack.

In addition, since the reinforcing plate is manufactured independently of the first side plate and the second side plate, the manufacturing material of the reinforcing plate may be different from that of the first side plate and the second side plate. Specifically, the stress strength of the toothed rack is the greatest in the rotating direction of the rack, so that the stress strength of the reinforcing plate which is manufactured independently is higher than that of the first side plate and the second side plate, the mechanical performance requirement of the scarifier on the whole material of the toothed rack is reduced on the first aspect, and the size and the material of the reinforcing plate can be adjusted randomly according to actual needs on the second aspect, so that the strength of the toothed rack is fully ensured, the toothed rack is prevented from cracking due to uneven stress of all parts, and the strength and the toughness of the toothed rack are optimal; the third party is also beneficial to simplifying the shape and the structure of the toothed rack, reducing the manufacturing difficulty of the toothed rack, reducing the overall size of the toothed rack, reducing the weight of the first side plate and the second side plate and reducing the cost of the toothed rack; the fourth aspect can avoid adopting a casting rack, which is beneficial to environmental protection.

Drawings

FIG. 1 is a schematic structural view of a prior art ripper beam without a rack mounted;

FIG. 2 is a cross-sectional schematic view of a prior art ripper beam with a rack mounted;

fig. 3 is a schematic structural diagram of a ripper according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a beam of the ripper provided by the embodiment of the invention when a rack is not installed;

fig. 5 is a side view of a first side panel or a second side panel provided by an embodiment of the present invention.

Description of the reference numerals

1-a right support; 2-a left support; 3-an upper connecting rod; 4-a lower connecting rod; 5-lifting oil cylinder; 6-a cross beam; 7-a rack; 8-a pin shaft; 6-1-link support; 6-2-tooth rack; 6-3-connecting pipe; 6-4-reinforcing connecting plates; 6-5-support plate; 6-3-1-a first side panel; 6-3-2-a first stiffener; 6-3-3-a second stiffener; 6-3-4-a third stiffener; 6-3-5-fourth stiffener.

Detailed Description

In the present invention, the use of directional terms such as "upper, lower, left, right" generally means upper, lower, left, right with reference to the accompanying drawings, unless otherwise specified. "inner and outer" refer to the inner and outer contours of the component itself.

Referring to fig. 3-5, in a first aspect, the embodiment of the invention provides a rack 6-2 of a ripper, and the rack 6-2 is used for mounting a rack 7 of the ripper. Specifically, the tooth rack 6-2 comprises a reinforcing plate, and a first side plate 6-3-1 and a second side plate which are opposite to and spaced apart from each other; the space between the first side plate 6-3-1 and the second side plate is used for clamping the root of the rack 7; through holes for hinging the racks 7 are formed in the positions, opposite to each other, of the first side plate 6-3-1 and the second side plate; the reinforcing plate is made independently of the first side plate 6-3-1 and the second side plate and can be fixed between the first side plate 6-3-1 and the second side plate for preventing the rack 7 from rotating relative to the first side plate 6-3-1 and the second side plate.

The root of the rack 7 refers to a position of the rack 7 far away from the tooth tip, and when the scarifier works, the tooth tip directly contacts with a soil layer to loosen the soil. The rack 7 rotates relative to the first side plate 6-3-1 and the second side plate, which can be understood that the rack 7 has a movement tendency of rotating clockwise or counterclockwise with a position of the through hole as a fulcrum in an operating state, a ground support state and a natural state, for example.

Referring to fig. 3, taking the rack 7 in a working state as an example, when the ripper works, the rack 7 works, the lifting cylinder 5 in the ripper drives the rack 7 to rotate through the connecting pipe 6-3 of the beam 6, in the rotating process, the vertical height and the horizontal position of the rack 7 can be changed, and the rack 7 of the ripper can crack or loosen soil on a soil layer under the driving action of the lifting cylinder 5. In the process of cracking or loosening the soil, the rack 7 is subjected to the reverse acting force of the soil layer, and the reverse acting force enables the rack 7 to have the movement trend of rotating counterclockwise by taking the pin shaft 8 as a rotating fulcrum. In order to prevent the rotation, a reinforcing plate is arranged in a spacing space between the first side plate 6-3-1 and the second side plate, the reinforcing plate limits the rack 7 and prevents the rack 7 from rotating by taking the pin shaft 8 (namely the position of the through hole on the first side plate 6-3-1 and the through hole on the second side plate) as a fulcrum when the soil is loosened or cracked.

With continued reference to fig. 3, when the rack 7 is in the natural state, the rack 7 is mainly acted by its own downward gravity and the upward supporting force of the pin 8. Since the tooth tip portion of the rack bar 7 is bent leftward with respect to the tooth root portion, the center of gravity of the rack bar 7 is shifted leftward with respect to the pin shaft 8, and the rack bar 7 has a tendency to rotate counterclockwise. In response to such a movement tendency of the rack bar 7, the reinforcing plate provided between the first side plate 6-3-1 and the second side plate may also serve to restrict the movement of the rack bar 7.

Continuing to refer to fig. 3, when the rack 7 supports the ground, the back of the tooth tip will contact with the ground, and because the back of the tooth tip is formed into a curved surface which is curved to the left, when the rack 7 supports the ground, the reverse acting force of the ground will be received, the direction of the reverse acting force will point to the upper left, and under the acting force, the rack 7 will have a tendency of rotating clockwise with the position of the pin 8 as a fulcrum. Wherein, the back surface of the rack 7 refers to the surface of the rack 7 facing away from the connecting pipe 6-3, i.e. the right side wall surface of the rack 7 in fig. 3.

The force applied to the rack 6-2 is larger in the rotating direction of the rack 7; therefore, the limiting component for preventing the rack 7 from moving is a reinforcing plate, and the reinforcing plate refers to a plate with increased strength which is separately arranged in order to enable the rack 6-2 to meet the impact load of the rack 7 (the impact load refers to the reverse acting force exerted by soil layers on the rack 7 when the rack 7 works, and the reverse acting force will enable the rack 7 to exert the impact load on the rack 6-2). Because the rack 7 is limited by the reinforcing plate alone, the rack 6-2 can be prevented from cracking due to impact load of the rack 7, so that the rack 6-2 can be better protected.

In addition, the reinforcing plate is manufactured independently of the first side plate 6-3-1 and the second side plate. Therefore, when the rack 7 is actually installed, the rack 7 can be fixed between the first side plate 6-3-1 and the second side plate through the pin shaft 8, and the rack 7 is limited by the reinforcing plate, so that the gap a between the reinforcing plate and the rack 7 can be accurately controlled, the gap has a small enough distance, and the reinforcing plate can meet the impact load of the rack 7.

In addition, because the reinforcing panel is manufactured independently of the first side panel 6-3-1 and the second side panel, the reinforcing panel may be manufactured from a different material than the first side panel 6-3-1 and the second side panel. Specifically, because the stress strength of the toothed rack 6-2 is the greatest in the rotation direction of the rack 7, the stress strength of the reinforcing plate which is manufactured separately is higher than that of the first side plate 6-3-1 and the second side plate, so that the mechanical performance requirement of the scarifier on the whole material of the toothed rack 6-2 is reduced on the first aspect, and the size and the material of the reinforcing plate can be adjusted randomly according to actual needs on the second aspect, so that the strength of the toothed rack 6-2 is fully ensured, cracking of the toothed rack 6-2 caused by uneven stress of all parts is avoided, and the strength and the toughness of the toothed rack 6-2 are optimal; the third party is also favorable for simplifying the shape and the structure of the toothed rack 6-2, reducing the manufacturing difficulty of the toothed rack 6-2, reducing the overall size of the toothed rack 6-2, reducing the weight of the first side plate 6-3-1 and the second side plate and reducing the cost of the toothed rack 6-2, and through practice, the weight of the toothed rack 6-2 provided by the embodiment of the invention can be reduced by about 35 percent, and the cost is at least reduced by 15 percent; in the fourth aspect, the casting tooth rack 6-2 can be avoided, which is beneficial to environmental protection.

As previously described, the reinforcement plate serves to prevent the rack 7 from rotating relative to the first side plate 6-3-1 and the second side plate. To meet this objective, the structural form of the reinforcing plate has various forms. The structure of the reinforcing plate in the preferred embodiment of the present invention will be described below by taking the mounting normality of the carrier 6-2 as an example.

Taking fig. 3 as an example, it is defined that in a normal installation state, the first side plate 6-3-1 and the second side plate are fixed on the connecting pipe 6-3 of the ripper and are perpendicular to an axial direction of the connecting pipe 6-3; the rack 7 has a root portion at the top, a tip portion at the bottom, and an upper portion substantially perpendicular to the ground.

Under the above installation normal state, the reinforcing plates comprise a first reinforcing plate 6-3-2 and a second reinforcing plate 6-3-3 which are respectively fixed on the upper and lower parts of one side of the first side plate 6-3-1 and the second side plate close to the connecting pipe 6-3 of the scarifier, and a third reinforcing plate 6-3-4 and a fourth reinforcing plate 6-3-5 which are fixed on one sides of the first side plate 6-3-1 and the second side plate far away from the connecting pipe 6-3; the fourth reinforcing plate 6-3-5 is positioned outside the bottom end of the third reinforcing plate 6-3-4 and is connected with the third reinforcing plate 6-3-4; the longitudinal direction of the third reinforcing plate 6-3-4 is perpendicular to the axial direction of the connecting pipe 6-3.

Taking fig. 3 as an example, the first side plate 6-3-1 and the second side plate limit the rack 7 in the front-rear direction, the first reinforcing plate 6-3-2 and the second reinforcing plate 6-3-3 limit the rack 7 on the left side, and the third reinforcing plate 6-3-4 and the fourth reinforcing plate 6-3-5 limit the rack 7 on the right side. The through hole is opened between the integral structure formed by the first reinforcing plate 6-3-2 and the second reinforcing plate 6-3-3 and the integral structure formed by the third reinforcing plate 6-3-4 and the fourth reinforcing plate 6-3-5. The rack 7 is hinged between the first side plate 6-3-1 and the second side plate through a pin shaft 8 penetrating through the through hole. Thus, when the ripper is operated, the rack 7 is supported by the first reinforcing plate 6-3-2 and the third reinforcing plate 6-3-4 (particularly, the bottom of the third reinforcing plate), and when the ripper is supported on the ground, the rack 7 is supported by the pin 8 and the second reinforcing plate 6-3-3. The fourth reinforcing plate 6-3-5 serves to increase the force strength of the third reinforcing plate 6-3-4 because the bottom of the third reinforcing plate 6-3-4 is most stressed. In order to better improve the structural strength of the third reinforcing plate 6-3-4, the fourth reinforcing plate 6-3-5 is perpendicularly connected to the third reinforcing plate.

In order to further improve the limiting effect of the reinforcing plate on the rack 7, the first reinforcing plate 6-3-2 and the second reinforcing plate 6-3-3 can be connected by a fifth reinforcing plate. For example, the first reinforcement plate 6-3-2 and the second reinforcement plate 6-3-3 may be arranged in a horizontal direction, for example, in parallel with the fourth reinforcement plate 6-3-5, and the fifth reinforcement plate may be arranged in a vertical direction, for example, in parallel with the third reinforcement plate 6-3-4.

The reinforcing plate is fixed to the first side plate 6-3-1 and the second side plate in various ways. In the preferred embodiment of the invention, the reinforcing plate is welded to the first side plate 6-3-1 and the second side plate.

The fixing modes of the first side plate 6-3-1 and the second side plate and the connecting pipe 6-3 are also various. In a preferred embodiment of the present invention, the first side plate 6-3-1 and the second side plate may be fixed to the connection pipe 6-3 by welding.

In addition, in order to reinforce the connection strength between the first side plate 6-3-1 and the second side plate and the connection pipe 6-3, an opening is formed at one side of the first side plate 6-3-1 and the second side plate, which is used for facing the connection pipe 6-3 of the ripper, and the shape of the opening is adapted to the cross-sectional shape of the connection pipe 6-3 so as to be capable of being attached to the outer wall surface of the connection pipe 6-3 along the circumferential direction of the connection pipe 6-3. Thereby, the contact area between the first side plate 6-3-1 and the second side plate can be increased, thereby improving the bonding strength therebetween.

The cross-section of the connecting tube 6-3 may have various shapes, such as a triangle, a quadrangle, a circle, or other shapes. In a preferred embodiment of the present invention, the cross section of the connecting pipe 6-3 is circular, and in order to be able to be attached to the outer circumferential surface of the circular connecting pipe 6-3 in the circumferential direction, the openings of the first side plate 6-3-1 and the second side plate on the side facing the connecting pipe 6-3 are circular arc-shaped.

In addition, in order to relieve the force acting on the first side plate 6-3-1 and the second side plate through the through holes when the ripper works, the stress of the first side plate 6-3-1 and the second side plate is excessively concentrated, and the first side plate 6-3-1 and the second side plate are cracked. Under the normal installation state, one sides of the tops of the first side plate 6-3-1 and the second side plate form chamfer arcs, the through holes are close to the chamfer arcs and are concentric with the chamfer arcs, and the chamfer arcs of the first side plate 6-3-1 and the second side plate are far away from the connecting pipe 6-3.

As shown in fig. 5, in order to form the chamfered arc, top ends of the first side plate 6-3-1 and the second side plate on a side away from the connecting pipe 6-3 are formed into a downward extending bevel. On the basis, in order to make the stress of the first side plate 6-3-1 and the second side plate more uniform, in the normal installation state, the part of the first side plate 6-3-1 and the second side plate far away from the connecting pipe 6-3 extends downwards relative to the part of the first side plate 6-3-1 and the second side plate near the connecting pipe 6-3.

Thus, the first side plate 6-3-1 and the second side plate can extend outward with the same width from the side close to the connecting pipe 6-3 to the side far from the connecting pipe 6-3. Thereby improving the force bearing uniformity of the first side plate 6-3-1 and the second side plate.

Based on the rack 6-2 of the ripper provided by the first aspect of the embodiment of the present invention, the second aspect of the embodiment of the present invention provides a beam 6 of the ripper, where the beam 6 includes a connecting pipe 6-3 and a rack 6-2 fixed on an outer wall surface of the connecting pipe 6-3, and the rack 6-2 is the rack 6-2 according to the first aspect of the embodiment of the present invention.

Specifically, the first side plate 6-3-1 and the second side plate have an opening formed on a side thereof facing the connecting pipe 6-3, the opening being attached to a part of the outer wall surface of the connecting pipe 6-3 in the circumferential direction and fixedly connected to the outer wall of the connecting pipe 6-3, and the connection may be, for example, welding.

Further, in order to enhance the connection strength between the first side plate 6-3-1 and the second side plate and the connection pipe 6-3, a reinforcing connection plate 6-4 is fixed on the other part of the outer wall surface in the circumferential direction, and both ends of the reinforcing connection plate 6-4 are fixedly connected with both ends of the opening. Therefore, the first side plate 6-3-1 and the second side plate can be fixedly connected with the connecting pipe 6-3 in the whole circumferential direction of the outer circumferential surface of the connecting pipe 6-3 through the reinforcing connecting plate 6-4, so that the connecting strength is improved.

The connection mode between the reinforcing connecting plate 6-4 and the connecting pipe 6-3 can be welding, or can be screw connection, rivet connection and the like. The connection between the connecting plate and the first side plate 6-3-1 and the second side plate is also the same. In the preferred embodiment of the present invention, the reinforcing connecting plate 6-4 is welded to the connecting pipe 6-3, and is welded to the first side plate 6-3-1 and the second side plate.

In another preferred embodiment of the invention, in order to improve the structural rigidity of the tooth carrier 6-2 when subjected to lateral forces. A support plate 6-5 is fixed between the outer side surface of the first side plate 6-3-1 and/or the second side plate and the outer wall surface of the connecting pipe 6-3; the support plate 6-5 can ensure that the welding strength between the connecting pipe 6-3 and the tooth rack 6-2 is sufficient and reliable, and meanwhile, the support plate 6-5 supports the tooth rack 6-2 when the tooth rack is stressed laterally, so that the structural rigidity of the tooth rack 6-2 when the tooth rack is stressed laterally is improved.

The shape of the supporting plate 6-5 is various, and in a preferred embodiment of the present invention, as shown in fig. 4, the supporting plate 6-5 may be, for example, a triangular reinforcing plate, and two right-angled sides of the triangular reinforcing plate are fixedly connected, for example, welded, to the outer wall surface of the connecting pipe 6-3 and the outer side surface of the first side plate 6-3-1 or the second side plate, respectively.

Based on the beam 6 of the ripper provided by the second aspect of the embodiment of the present invention, the third aspect of the embodiment of the present invention provides a ripper, which includes the beam 6, and the beam 6 is the beam 6 of the ripper according to the second aspect of the embodiment of the present invention.

A fourth aspect of the embodiments of the present invention provides a construction machine including a ripper according to the third aspect of the embodiments of the present invention. Further, the construction machine may be, for example, a bulldozer, an excavator, or the like.

The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Within the scope of the technical idea of the invention, many simple modifications can be made to the technical solution of the invention. Including each of the specific features, are combined in any suitable manner. The invention is not described in detail in order to avoid unnecessary repetition. Such simple modifications and combinations should be considered within the scope of the present disclosure as well.

Claims (10)

1. A rack of a ripper for mounting a rack of the ripper, the rack including a reinforcing plate, and first and second side plates opposed to and spaced apart from each other; the space between the first side plate and the second side plate is used for clamping the root part of the rack; through holes for hinging the racks are formed in the positions, opposite to each other, of the first side plate and the second side plate; the reinforcing plate is manufactured independently of the first side plate and the second side plate and can be fixed between the first side plate and the second side plate for preventing the rack from rotating relative to the first side plate and the second side plate.

2. The carrier of claim 1, wherein an opening is formed in one side of the first side plate and the second side plate facing the connecting pipe of the ripper, and the opening has a shape corresponding to a cross-sectional shape of the connecting pipe so as to be able to fit to an outer wall surface of the connecting pipe in a circumferential direction of the connecting pipe.

3. The ripper shelf of claim 2, wherein the connecting tube is circular in cross-section and the opening is in the shape of a circular arc.

4. The ripper shelf of claim 2, wherein, in an installation normal state, a top side of the first side plate and the second side plate is formed as a chamfered arc, the through hole is close to and concentric with the chamfered arc, and the chamfered arc of the first side plate and the second side plate is far from the connecting pipe.

5. The ripper yoke of claim 4, wherein portions of the first and second side plates distal from the connecting tube extend downward relative to portions of the first and second side plates proximal to the connecting tube in an installed normal state.

6. The ripper of claim 1, wherein the reinforcing plates include first and second reinforcing plates fixed to upper and lower portions of one sides of the first and second side plates, which are close to a connecting pipe of the ripper, respectively, and third and fourth reinforcing plates fixed to sides of the first and second side plates, which are far from the connecting pipe, in a normal mounting state; the fourth reinforcing plate is positioned outside the bottom end of the third reinforcing plate and connected with the third reinforcing plate; the longitudinal direction of the third reinforcing plate is perpendicular to the axial direction of the connecting pipe.

7. A beam of a ripper, characterized in that, the beam includes a connecting pipe and a rack fixed on an outer wall surface of the connecting pipe, the rack is according to any one of claims 1-6.

8. The cross beam of a ripper of claim 7, wherein a support plate for reinforcing structural rigidity of lateral force of the tooth rack is fixed between outer side faces of the first side plate and the second side plate and an outer wall face of the connecting pipe;

an opening is formed in one side, facing the connecting pipe, of the first side plate and the second side plate, the opening is attached to a part of the outer wall surface of the connecting pipe in the circumferential direction, a reinforcing connecting plate is fixed to the other part of the outer wall surface in the circumferential direction, and two ends of the reinforcing connecting plate are fixedly connected with two ends of the opening.

9. A ripper, characterized in that it includes a beam of the ripper of claim 7 or 8.

10. A construction machine comprising a ripper, characterized in that the ripper is the ripper of claim 9.

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