Shell reinforcing plate

Abstract

The utility model discloses a shell reinforcing plate, which comprises a front reinforcing plate and a rear reinforcing plate, the front reinforcing plate and the rear reinforcing plate are respectively fixed on two sides of a shell, and the difference between the rear reinforcing plate and the front reinforcing plate is that a through hole of the rear reinforcing plate is a round through hole, a through hole of the front reinforcing plate is a hexagonal through hole, and a through hole of the rear reinforcing plate is a hexagonal through hole. One end of a bolt in the bolt assembly sequentially penetrates through the hexagonal through hole, the front wall plate, the rear wall plate, the round through hole and a nut. The hexagonal through hole is additionally formed in the front reinforcing plate, the upper edge and the lower edge of the hexagonal through hole are lengthened, the contact points of the nut and the hexagonal through hole are changed into the upper edge and the lower edge, when the hydraulic breaking hammer works normally, the nut does not make contact with the four side edges of the hexagonal through hole, the structure of a bolt for fixing a wall plate is enhanced, and the service life of the hydraulic breaking hammer is prolonged. And the check ring can be effectively prevented from cracking.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic breakers, in particular to a housing reinforcing plate. Background Art

[0002] The housing of the hydraulic breaker and the movement of the hydraulic breaker are fixed together by 8 bolt assemblies. As Figure 1 shown, there is a high demand for stability. The bolt assembly consists of a bolt, a nut, and 2 gaskets. As Figure 2 shown, and there are 8 retaining rings provided on the housing. The outer part of the retaining ring is circular, and the inner part is an inner hexagon, which is fixed to the housing by welding. The hexagonal nut and the gasket of the bolt are placed inside the retaining ring. The function of the retaining ring is to prevent the bolt from rotating when the bolt is tightened.

[0003] It is found during use that the weld seams of the retaining rings on the housing often crack or even fall off, posing a potential hazard to the stable operation of the hydraulic breaker.

[0004] After analysis, when the hexagonal nut is tightened inside the inner hexagon of the housing retaining ring, due to the existing gap, the contact between the nut and the hexagonal retaining ring is six-point contact. As Figure 3 shown. When the hydraulic breaker is actually working, due to the vibration generated by normal collisions, through the six-point contact, it is conducted to the hexagonal retaining ring of the housing, and the pressure on the hexagonal retaining ring of the housing is relatively large, which is likely to cause cracks or even falling off of the hexagonal retaining ring of the housing. Content of the Utility Model

[0005] The purpose of the utility model is to provide a housing reinforcing plate, which cancels the structure of two retaining rings originally welded at one end close to the drill rod of the hydraulic breaker, and instead adds a hexagonal through-hole to the front reinforcing plate, and lengthens the upper and lower two sides of the hexagonal through-hole, changing the contact points between the nut and the hexagonal hole to the upper and lower two sides. When the hydraulic breaker is working normally, the nut does not contact the four side edges of the hexagonal through-hole, enhancing the structure of the bolts of the fixed wall plate and effectively preventing the cracking of the retaining ring.

[0006] To achieve the above object, the present utility model provides the following technical solutions: A housing reinforcement plate includes a front reinforcement plate and a rear reinforcement plate. The front reinforcement plate and the rear reinforcement plate are respectively fixed on both sides of the housing. Among them, welding holes, repair welding holes, through holes, and interfaces are provided on both the front reinforcement plate and the rear reinforcement plate. The front reinforcement plate is welded to the front wall panel of the housing through the welding holes and repair welding holes. The front reinforcement plate is connected to the reinforcing ribs provided on the housing through the interfaces. The through holes are correspondingly arranged with the bolt assemblies at one end of the housing. The rear reinforcement plate is symmetrically arranged with the front reinforcement plate and is fixed to the rear wall panel of the housing. The difference between the rear reinforcement plate and the front reinforcement plate is that: the through hole of the rear reinforcement plate is a circular through hole, and the through hole of the front reinforcement plate is a hexagonal through hole. One end of the bolt in the bolt assembly sequentially passes through the hexagonal through hole, the front wall panel, the rear wall panel, the circular through hole, and the nut; the upper and lower sides of the hexagonal through hole are correspondingly longer than the upper and lower sides of the hexagonal nut of the bolt by a certain length.

[0007] Further preferably, the front reinforcement plate is arranged at one end of the front wall panel close to the drill rod of the hydraulic breaker.

[0008] Further preferably, the rear reinforcement plate is arranged at one end of the rear wall panel close to the drill rod of the hydraulic breaker.

[0009] Further preferably, the repair welding holes are arranged in the middle of the front reinforcement plate.

[0010] Further preferably, the number of welding holes is multiple, and the number of welding holes on the side of the front reinforcement plate close to the drill rod of the hydraulic breaker is more than that on the other side of the front reinforcement plate.

[0011] Further preferably, the diameter of the circular through hole is larger than the circumscribed circle diameter of the nut.

[0012] Further preferably, the number of interfaces is the same as the number of reinforcing ribs.

[0013] Further preferably, a plurality of retaining rings are welded to the other end of the front wall panel away from the drill rod of the hydraulic breaker. The outer part of the retaining ring is circular and the inner part is an inner hexagon. It is fixed to the housing by welding. The bolts corresponding to the retaining rings sequentially pass through the inner hexagon of the retaining ring, the front wall panel, the rear wall panel, and the nut to fix the front wall panel and the rear wall panel.

[0014] Further preferably, the upper and lower sides of the inner hexagon of the retaining ring are correspondingly longer than the upper and lower sides of the hexagonal nut of the bolt by a certain length.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. The present utility model cancels the two retaining ring structures originally welded at one end of the hydraulic breaker drill rod close to it, and instead adds hexagonal through holes to the front reinforcement plate, lengthens the upper and lower sides of the hexagonal through holes, and changes the contact point between the nut and the hexagonal hole to the upper and lower sides. When the hydraulic breaker is working normally, the nut does not contact the four side edges of the hexagonal through hole, strengthening the structure of the fixed wall plate bolts and effectively preventing the cracking of the retaining ring.

[0017] 2. The present utility model has multiple welding holes on both reinforcement plates (such as the front reinforcement plate and the rear reinforcement plate), which can better fix the reinforcement plates on the housing, increase the overall strength, and extend the service life of the housing.

[0018] 3. The present utility model also designs repair welding holes on both reinforcement plates (such as the front reinforcement plate and the rear reinforcement plate), and sets the repair welding holes in the middle of the reinforcement plates, which can further strengthen the welding strength between the reinforcement plates and the housing and increase the overall strength.

[0019] 4. The present utility model also designs an interface structure on both reinforcement plates (such as the front reinforcement plate and the rear reinforcement plate), and the number of interfaces is the same as the number of stiffeners 7, which can integrate the reinforcement plates and the stiffeners to jointly increase the strength of the housing and effectively prevent the reinforcement plates from falling off due to vibration.

[0020] 5. The present utility model makes the number of welding holes on one side of the reinforcement plate close to the hydraulic breaker drill rod more than that on the other side of the reinforcement plate, which further increases the strength of the housing on the side close to the hydraulic breaker drill rod and extends the service life of the housing.

[0021] 6. The structure of the present utility model is simple and the cost is relatively low. It can replace the existing retaining ring and is widely used on the housings of existing hydraulic breakers, and its effect is remarkable.

[0022] Additional aspects and advantages of the present utility model will be partly given in the following description, partly will become obvious from the following description, or will be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic diagram of the retaining ring and bolts on the housing of the existing hydraulic breaker;

[0024] Figure 2 is a schematic diagram of the bolt assembly structure;

[0025] Figure 3 is a schematic diagram of the contact point between the hexagonal nut of the bolt and the inner hexagon of the retaining ring;

[0026] Figure 4 is a schematic diagram of the housing reinforcement plate structure of the present utility model;

[0027] Figure 5 Schematic diagram of the front reinforcement plate of the present utility model;

[0028] Figure 6 Three-dimensional structure diagram of the front reinforcement plate of the present utility model;

[0029] Figure 7 Three-dimensional structure diagram of the rear reinforcement plate of the present utility model;

[0030] Figure 8 Schematic diagram of the contact point between the hexagonal through-hole and the hexagonal nut of the bolt of the present utility model.

[0031] Wherein, 1, front reinforcement plate; 2, rear reinforcement plate; 3, front wall panel; 4, hydraulic breaker; 5, rear wall panel; 6, bolt assembly; 7, reinforcing rib; 8, retaining ring; 101, hexagonal through-hole; 102, welding hole; 103, interface; 104, repair welding hole; 201, circular through-hole. Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0033] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "connection", "fixation" and other terms 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 directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0034] As Figure 3 shown, when the hexagonal nut is tightened inside the hexagon of the housing retaining ring, due to the existing gap, the contact between the nut and the hexagonal retaining ring is six-point contact. During the actual operation of the hydraulic breaker, due to the normal collision generating vibration, through the six-point contact, it is transmitted to the hexagonal retaining ring of the housing, and the pressure on the hexagonal retaining ring of the housing is relatively large, which is likely to cause cracks or even dropping of the hexagonal retaining ring of the housing.

[0035] Embodiment 1

[0036] To solve the above problems, the present utility model provides a technical solution: Please refer to Figures 4 - 8A shell reinforcement plate includes a front reinforcement plate 1 and a rear reinforcement plate 2, wherein the front reinforcement plate 1 and the rear reinforcement plate 2 are respectively fixed on both sides of the shell, wherein the front reinforcement plate 1 and the rear reinforcement plate 2 are provided with welding holes 102, repair welding holes 104, through holes, and interfaces 103, the front reinforcement plate 1 is welded to the front wall plate 3 of the shell through the welding holes 102 and the repair welding holes 104, and the repair welding holes 104 are provided to strengthen the welding strength of the reinforcement plate and the shell, the front reinforcement plate 1 is connected to the reinforcement rib 7 provided on the shell through the interface 103, and the through holes are connected to the reinforcement rib 7 provided on the shell. The bolt assembly 6 on one end of the shell is correspondingly arranged, the rear reinforcing plate 2 is symmetrically arranged with the front reinforcing plate 1, and the rear reinforcing plate 2 is fixed to the rear wall plate 5 of the shell. The difference between the rear reinforcing plate 2 and the front reinforcing plate 1 is that the through hole of the rear reinforcing plate 2 is a circular through hole 201, and the through hole of the front reinforcing plate 1 is a hexagonal through hole. One end of the bolt in the bolt assembly 6 passes through the hexagonal through hole, the front wall plate 3, the rear wall plate 5, the circular through hole 201, and the nut in sequence; the upper and lower sides of the hexagonal through hole are longer than the upper and lower sides of the hexagonal nut of the bolt by a certain length, refer to Figure 8 .

[0037] When the hydraulic breaker 4 is working, the vibration near the drill rod is more severe. Therefore, the front reinforcing plate 1 is arranged on one end of the front wall plate 3 near the drill rod of the hydraulic breaker 4; the rear reinforcing plate 2 is arranged on one end of the rear wall plate 5 near the drill rod of the hydraulic breaker 4, which can greatly increase the overall strength and increase the service life of the shell.

[0038] In addition, the repair welding hole 104 is arranged in the middle of the front reinforcing plate 1, so that the welding strength between the reinforcing plate and the shell can be further strengthened, thereby increasing the overall strength.

[0039] When there are multiple welding holes 102, the number of welding holes 102 on one side of the front reinforcing plate 1 close to the drill rod of the hydraulic breaker 4 is greater than the number of welding holes 102 on the other side of the front reinforcing plate 1, thereby further increasing the strength of the shell on the side close to the drill rod of the hydraulic breaker 4 and increasing the service life of the shell.

[0040] The diameter of the circular through hole 201 is larger than the diameter of the circumscribed circle of the nut, which makes it easier to install and remove the nut.

[0041] The utility model is provided with a structure of interfaces 103, and the number of interfaces 103 is consistent with the number of reinforcing ribs 7, so that the reinforcing plate and the reinforcing ribs 7 can be integrated into one, and the strength of the shell is jointly increased.

[0042] Example 2

[0043] The difference between this embodiment and embodiment 1 is that: a plurality of retaining rings are welded on the other end of the front wall plate 3 away from the drill rod of the hydraulic breaker 4. The retaining ring is circular on the outside and hexagonal on the inside, and is fixed to the shell by welding. The hexagonal nuts and gaskets of the bolts are placed in the retaining ring.

[0044] The front reinforcement plate is provided with 5 welding holes, 1 repair welding hole, 2 hexagonal through holes, and 2 interfaces, and the rear reinforcement plate is provided with 5 welding holes, 1 repair welding hole, 2 circular through holes, and 2 interfaces.

[0045] The present utility model designs two reinforcement plates (such as a front reinforcement plate and a rear reinforcement plate). Each reinforcement plate has multiple welding holes (preferably 5, which can be taken more or less according to needs). The two reinforcement plates are respectively fixed on both sides of the housing. The through holes of the front reinforcement plate are circular through holes, and the through holes of the rear reinforcement plate are hexagonal through holes; bolt assemblies are placed at the through holes. This design cancels the two retaining ring structures originally welded at one end close to the drill rod of the hydraulic breaker, and instead adds hexagonal through holes (the number of hexagonal through holes is set according to the number of bolts, Figures 4 - 7 in this case, there are 2 hexagonal through holes) on the front reinforcement plate, and lengthens the upper and lower two sides of the hexagonal through holes. The contact point between the nut and the hexagonal hole is changed to the upper and lower two sides. When the hydraulic breaker is working normally, the nut does not contact the four side edges of the hexagonal through hole, strengthening the structure of the bolts for fixing the wall plate and effectively preventing the cracking of the retaining ring. This design has multiple welding holes on both reinforcement plates, which can better fix the reinforcement plates on the housing, increase the overall strength, and increase the service life of the housing.

[0046] Embodiment 3

[0047] The difference between this embodiment and Embodiment 1 is that: multiple retaining rings 8 are welded on the other end of the front wall plate 3 far from the drill rod 4 of the hydraulic breaker. The outer part of the retaining ring 8 is circular, and the inner part is an inner hexagon, and it is fixed on the housing by welding. One end of the bolt in the bolt assembly 6 sequentially passes through the inner hexagon of the retaining ring 8, the front wall plate 3, the rear wall plate 5, and the nut. The hexagonal nut and washer of the bolt are placed inside the retaining ring 8.

[0048] The upper and lower two sides of the inner hexagon of the retaining ring 8 are correspondingly longer than the upper and lower two sides of the hexagonal nut of the bolt by a certain length, as shown in Figure 8 shown.

[0049] In the description of the present utility model, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model 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 should not be construed as a limitation to the present utility model.

[0050] In the description of this specification, the descriptions referring to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0051] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A housing reinforcing plate, characterized in that It includes a front reinforcing plate and a rear reinforcing plate. The front reinforcing plate and the rear reinforcing plate are respectively fixed on both sides of the housing. Among them, welding holes, repair welding holes, through holes, and interfaces are provided on both the front reinforcing plate and the rear reinforcing plate. The front reinforcing plate is welded to the front wall panel of the housing through the welding holes and repair welding holes. The front reinforcing plate is connected to the reinforcing rib provided on the housing through the interface. The through hole is correspondingly arranged with the bolt assembly at one end of the housing. The rear reinforcing plate is symmetrically arranged with the front reinforcing plate and is fixed on the rear wall panel of the housing. The difference between the rear reinforcing plate and the front reinforcing plate is that: the through hole of the rear reinforcing plate is a circular through hole, and the through hole of the front reinforcing plate is a hexagonal through hole. One end of the bolt in the bolt assembly sequentially passes through the hexagonal through hole, the front wall panel, the rear wall panel, the circular through hole, and the nut; the upper and lower sides of the hexagonal through hole are correspondingly longer than the upper and lower sides of the hexagonal nut of the bolt by a certain length.

2. The housing reinforcing plate according to claim 1, wherein: The front reinforcing plate is arranged at one end of the front wall panel close to the drill rod of the hydraulic breaker.

3. The housing reinforcement plate according to claim 1, wherein: The rear reinforcing plate is arranged at one end of the rear wall panel close to the drill rod of the hydraulic breaker.

4. The housing reinforcement plate according to claim 1, characterized in that: The repair welding hole is arranged in the middle of the front reinforcing plate.

5. The housing reinforcement plate according to claim 1, wherein: The number of the welding holes is multiple, and the number of welding holes on the side of the front reinforcing plate close to the drill rod of the hydraulic breaker is more than that on the other side of the front reinforcing plate.

6. The housing reinforcement plate according to claim 1, wherein: The diameter of the circular through hole is larger than the circumscribed circle diameter of the nut.

7. The housing reinforcement plate according to claim 1, characterized in that: The number of the interfaces is the same as the number of the reinforcing ribs.

8. The housing reinforcement plate according to claim 1, characterized in that: A plurality of retaining rings are welded on the other end of the front wall panel away from the drill rod of the hydraulic breaker. The outer part of the retaining ring is circular and the inner part is an inner hexagon. It is fixed on the housing by welding. The corresponding bolt passes through the inner hexagon of the retaining ring, the front wall panel, the rear wall panel, and the nut in sequence to fix the front wall panel and the rear wall panel.

9. The housing reinforcement plate according to claim 8, characterized in that: The upper and lower sides of the inner hexagon of the retaining ring are correspondingly longer than the upper and lower sides of the hexagonal nut of the bolt by a certain length.

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