Bulldozer scraper knife supporting structure

Abstract

The utility model discloses a bulldozer shovel blade supporting structure, which comprises a supporting device, a horizontal supporting rod and a push rod, the push rod and the supporting device are rotatably arranged on a tool bit, one end of the horizontal supporting rod is arranged on the push rod, and the other end of the horizontal supporting rod is rotatably arranged on the supporting device. According to the scheme, the horizontal supporting rod is connected and installed between the push rod and the tool bit and has the horizontal supporting effect on the belt head. Furthermore, a supporting device is installed between the horizontal supporting rod and the tool bit, and the supporting device is rotatably installed on the tool bit and can rotate to provide a space for the horizontal supporting rod to rotate after the horizontal supporting rod is stressed, that is, when the tool bit inclines, the supporting device can rotate on the tool bit, and the tool bit can rotate on the tool bit. In this way, the horizontal supporting rod can horizontally support the tool bit within a certain angle, borne stress is reduced, and the problem that the horizontal supporting rod is prone to deformation and damage when the tool bit inclines can be solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bulldozer technical field especially relates to a bulldozer spade support structure. BACKGROUND

[0002] At present, the small power type of bulldozer front horizontal support rod connecting structure is mostly two horizontal supports directly connected with the front blade head, but this structure is statically indeterminate, the horizontal support is subjected to torsion force when the spade is inclined, and the spade inclination angle is limited; the medium and large power type is mostly four horizontal support connecting structures, the spade structure is better in horizontal support stress during the inclination process, and the spade inclination angle is larger, which meets the demand of complex working conditions, but this spade needs four supports, the middle is ball hinge connection, the cost is higher, the processing difficulty is great, and the assembly adjustment is complex. SUMMARY

[0003] In order to solve the technical problem that the horizontal support is subjected to large stress and is easy to deform when the spade of the bulldozer is inclined in the background art, the purpose of the utility model is to provide a bulldozer spade support structure, which can solve the above problems.

[0004] The technical scheme for achieving the purpose of the utility model is: a bulldozer spade support structure, comprising a support device, a horizontal support rod and a push rod, the push rod and the support device are rotatably installed on the blade head, one end of the horizontal support rod is installed on the push rod, and the other end of the horizontal support rod is rotatably installed on the support device.

[0005] In the scheme, the horizontal support rod is connected and installed between the push rod and the blade head, and has the function of horizontally supporting the blade head. Further, a support device is installed between the horizontal support rod and the blade head, and the support device is rotatably installed on the blade head, which can provide a space for the horizontal support rod to rotate after being subjected to stress, that is, when the blade head is inclined, the support device can rotate on the blade head, so that the horizontal support rod can horizontally support the blade head within a certain angle, reduce the stress, and protect the horizontal support rod from being deformed and damaged when the blade head is inclined. Further, the horizontal support rod is also rotatably installed on the support device, that is, the support device can rotate on the blade head, and the horizontal support rod can rotate on the support device, so that the horizontal support rod has a larger rotating space and can support the inclination of the blade head at a larger angle, the stress is smaller when the blade head is inclined, and the horizontal support rod is less likely to be deformed and damaged. The device has a simple structure, eliminates the high cost problem of at least four horizontal support connecting structures of the medium and large power type, and reduces the overall cost of the bulldozer.

[0006] Further, the support device has a pin shaft, and the support device is rotatably installed on the cutter head through the pin shaft. That is, the rotating mechanism on the support device is the pin shaft, and the support device and the cutter head are installed through the rotation of the pin shaft.

[0007] Further, the support device has a rotating through hole, the cutter head has a rotating hole corresponding to the pin shaft, the pin shaft is rotatably installed in the rotating through hole, and the end of the pin shaft is located in the rotating hole. Specifically, the pin shaft is rotatably installed in the rotating through hole on the support device, and the two ends of the pin shaft are rotatably installed in the rotating hole on the cutter head, so that the support device can be rotatably installed on the cutter head. When the two ends of the pin shaft are rotatably installed in the rotating hole, a washer can be added to maintain stability during rotation.

[0008] Further, the end of the horizontal support rod has a ball head, the support device has a ball socket corresponding to the ball head, and the ball head is rotatably installed in the ball socket. In the rotating cooperation relationship between the horizontal support rod and the support device, the cooperation of the ball head and the ball socket facilitates the relative rotation between the two.

[0009] Further, a clamping plate is further included, the clamping plate has a central inner hole, the ball head includes a ball head body and a ball head rear end, the central inner hole is sleeved on the ball head rear end, the diameter of the central inner hole is greater than the diameter of the ball head rear end and less than the diameter of the ball head body, and the horizontal support rod is installed on the support device through the clamping plate. In the cooperation relationship between the horizontal support rod and the support device by the ball head and the ball socket, in order to facilitate the relative rotation between the two and have a relative fixing structure, the clamping plate connection structure is added. Specifically, the clamping plate is clamped on the ball head rear end, and has a gap between the clamping plate and the ball head, allowing the ball head rear end to move in the central inner hole, that is, allowing the ball head body to move in the ball socket, and then the clamping plate and the support device are relatively fixed.

[0010] Further, the clamping plate has a first mounting hole, the periphery of the ball socket has a second mounting hole corresponding to the first mounting hole, and a mounting bolt is installed in the first mounting hole and the second mounting hole; the clamping plate and the ball head body have a gap. The relative fixing between the clamping plate and the support device adopts the mounting bolt fixing mode, which is convenient for disassembly, installation and later maintenance.

[0011] Further, one end of the horizontal supporting rod is provided with a ball head, and the other end is provided with a mounting ring, the horizontal supporting rod is rotatably mounted on the push rod through the mounting ring, that is, the horizontal supporting rod and the push rod can also relatively rotate, while supporting the tool bit horizontally, the rotation space of the horizontal supporting rod is allowed as much as possible, the tool bit inclination problem under complex working conditions is solved, and the stress and deformation damage problems of the horizontal supporting rod are reduced.

[0012] Further, the push rod and the horizontal supporting rod are at least two, the pin shaft is located at one end of the supporting device, the ball socket is located at the other end of the supporting device, the end of the supporting device where the ball socket is located is provided with a bending part, and at least two ball sockets are arranged on the bending part.

[0013] Further, the bending part and the side wall of the supporting device body are further fixed with a reinforcing plate, so that the stress effect and the strength of the supporting device are improved.

[0014] Further, the bending part is further provided with an oil cup for injecting lubricating oil into the ball socket, so that the problem of large friction and large wear between the ball head and the ball socket is prevented.

[0015] By adopting the above technical scheme, the tool bit supporting device has the following beneficial effects:

[0016] (1) The supporting device is rotatably mounted on the tool bit, and the horizontal supporting rod is rotatably mounted on the supporting device, so that when the tool bit needs to be inclined under complex working conditions, the horizontal supporting rod has a rotation space and allowance, the stress is reduced, and the bending deformation damage problem caused by excessive stress is prevented.

[0017] (2) The ball head and the ball socket cooperation structure are adopted between the horizontal supporting rod and the supporting device, and the clamping plate and the supporting device fixed structure are increased, so that the ball head of the horizontal supporting rod is allowed to rotate in the ball socket of the supporting device on the basis of being fixed, so as to achieve the rotation cooperation of the two.

[0018] (3) The center inner hole diameter of the clamping plate is greater than the rear end diameter of the ball head and less than the body diameter of the ball head, the clamping plate and the ball head body have a gap, that is, the horizontal supporting rod cannot be separated from the limitation of the clamping plate, and at the same time, the ball head can rotate in the ball socket, and the rotation cooperation between the horizontal supporting rod and the supporting device is achieved. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to make the content of the utility model more easily be clearly understood, the following according to specific embodiment and combining with the drawings, the utility model is further explained in detail, wherein

[0020] Figure 1 It is the whole schematic view of bulldozer blade support structure in the utility model,

[0021] Figure 2 It is the support device structure schematic view in the utility model,

[0022] Figure 3 It is the horizontal support rod structure schematic view in the utility model,

[0023] Figure 4 It is the horizontal support rod another angle structure schematic view in the utility model.

[0024] The label in the drawing is: 1 support device, 2 horizontal support rod, 3 push rod, 4 blade head, 5 pin shaft, 6 rotating through-hole, 7 ball head, 8 ball socket, 9 clamping plate, 10 center inner hole, 11 ball head body, 12 ball head rear end, 13 first mounting hole, 14 second mounting hole, 15 mounting bolt, 16 mounting ring, 17 bending part, 18 reinforcing plate, 19 oil cup, 20 washer. Specific embodiments

[0025] Embodiment:

[0026] As Figure 1As shown, the embodiment provides a bulldozer blade support structure, which comprises a support device 1, a horizontal support rod 2 and a push rod 3, the push rod 3 and the support device 1 are rotatably installed on a blade head 4, one end of the horizontal support rod 2 is installed on the push rod 3, and the other end of the horizontal support rod 2 is rotatably installed on the support device 1. In this scheme, the horizontal support rod 2 is connected and installed between the push rod 3 and the blade head 4, which has the effect of horizontally supporting the blade head. Further, the support device 1 is installed between the horizontal support rod 2 and the blade head 4, and the support device 1 is rotatably installed on the blade head 4. The support device 1 can rotate to provide a space for the horizontal support rod 2 to rotate after being stressed, that is, when the blade head 4 is inclined, the support device 1 can rotate on the blade head 4, so that the horizontal support rod 2 can horizontally support the blade head 4 within a certain angle, reduce the stress, and can protect the horizontal support rod 2 from deforming and damaging when the blade head 4 is inclined. Further, the horizontal support rod 2 is also rotatably installed on the support device 1, that is, the support device 1 can rotate on the blade head 4, and the horizontal support rod 2 can rotate on the support device 1, so that the horizontal support rod 2 has a larger rotating space and can support the inclination of the blade head 4 at a larger angle, and the stress is smaller when the blade head 4 is inclined, and it is more difficult to deform and damage, etc. The device has a simple structure, which can save the cost of at least four horizontal support connection structures of medium and high power models, and reduce the overall cost of the bulldozer.

[0027] Preferably, the push rod 3 and the horizontal support rod 2 are at least two, the pin shaft 5 is located at one end of the support device 1, the ball socket 8 is located at the other end of the support device 1, the end of the support device 1 where the ball socket 8 is located has a bending part 17, and at least two ball sockets 8 are arranged on the bending part 17. Preferably, the push rod 3 and the horizontal support rod 2 are two, which are arranged on the blade head 4 to balance the stress and better provide horizontal support force for the blade head 4.

[0028] As shown in the figure, Figure 2 The support device 1 has a pin shaft 5, and the support device 1 is rotatably installed on the blade head 4 through the pin shaft 5. That is, the rotating mechanism on the support device 1 is the pin shaft 5, which is installed between the support device 1 and the blade head 4 through the rotation of the pin shaft 5. The support device 1 has a rotating through hole 6, the blade head 4 has a rotating hole corresponding to the pin shaft 5, the pin shaft 5 is rotatably installed in the rotating through hole 6, and the end of the pin shaft 5 is located in the rotating hole. Specifically, the pin shaft 5 is rotatably installed in the rotating through hole 6 on the support device 1, and its two ends are rotatably installed in the rotating hole on the blade head 4, so that the support device 1 can be rotatably installed on the blade head 4 by means of the pin shaft 5. When the two ends of the pin shaft 5 rotate in the rotating hole, a washer 20 can be added to maintain the stability during rotation.

[0029] Preferably, a reinforcing plate 18 is fixed to the sidewalls of the bent portion 17 and the main body of the support device 1 to improve the overall force-bearing effect and strength of the support device 1. An oil cup 19 is also provided on the bent portion 17 for injecting lubricating oil into the ball socket 8 to prevent the problem of excessive wear caused by high friction between the ball head 7 and the ball socket 8.

[0030] like Figures 2-4 As shown, the end of the horizontal support rod 2 has a ball head 7, and the support device 1 has a ball socket 8 corresponding to the ball head 7, and the ball head 7 is rotatably installed in the ball socket 8. In the rotational cooperation relationship between the horizontal support rod 2 and the support device 1, the cooperation mode of the ball head 7 and the ball socket 8 is adopted to facilitate the relative rotation between the two. It also includes a clamping plate 9, which has a central inner hole 10. The ball head 7 includes a ball head body 11 and a ball head rear end 12. The central inner hole 10 is sleeved on the ball head rear end 12. The diameter of the central inner hole 10 is larger than the diameter of the ball head rear end 12 and smaller than the diameter of the ball head body 11. The horizontal support rod 2 is installed on the support device 1 through the clamping plate 9. In the matching relationship between the ball head 7 and the ball socket 8 of the horizontal support rod 2 and the support device 1, in order to facilitate the relative rotation of the two and to have a relatively fixed structure, a card plate 9 connection structure is added. Specifically, the card plate 9 is clamped on the rear end 12 of the ball head, and there is a gap between the card plate 9 and the ball head 7, allowing the rear end 12 of the ball head to move in the central inner hole 10, that is, allowing the ball head body 11 to move in the ball socket 8, and then the card plate 9 and the support device 1 are relatively fixed. The card plate 9 has a first mounting hole 13, and the periphery of the ball socket 8 has a second mounting hole 14 corresponding to the first mounting hole 13. The mounting bolt 15 is installed in the first mounting hole 13 and the second mounting hole 14; there is a gap between the card plate 9 and the ball head body 11. The card plate 9 and the support device 1 are relatively fixed by using the mounting bolt 15 to facilitate disassembly and installation and subsequent maintenance. One end of the horizontal support rod 2 has a ball head 7, and the other end has a mounting ring 16. The horizontal support rod 2 is rotatably mounted on the push rod 3 through the mounting ring 16, that is, the horizontal support rod 2 and the push rod 3 can also rotate relative to each other. While providing horizontal support to the cutter head 4, the horizontal support rod 2 is allowed to have as much rotation space as possible, which solves the problem of the cutter head 4 being tilted under complex working conditions and reduces the stress and deformation damage problems of the horizontal support rod 2.

[0031] Working principle: horizontal support rod 2 is installed on the cutter head 4 through the support device 1, the support device 1 is rotatably installed on the cutter head 4 through the pin shaft 5, the horizontal support rod 2 and the support device 1 are rotatably installed through the cooperation of the ball head 7 and the ball socket 8, the fixed structure of the clamping plate 9, when the cutter head 4 needs to be inclined under complex working conditions, not only the support device 1 can relatively rotate, but also the horizontal support rod 2 and the support device 1 can relatively rotate, the rotation space can reduce the stress of the horizontal support rod 2, and the problem of deformation and distortion of the horizontal support rod 2 under excessive stress can be prevented.

[0032] The above specific embodiments further specifically describe the purpose, technical scheme and beneficial effects of the utility model, and it should be understood that the above description is only for specific embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A bulldozer blade support structure, characterized by, The utility model provides a support device (1), horizontal support rod (2) and push rod (3), push rod (3) and support device (1) are rotatably installed on cutter head (4), one end of horizontal support rod (2) is installed on push rod (3), the other end of horizontal support rod (2) is rotatably installed on support device (1), support device (1) has pin shaft (5) on it, support device (1) is rotatably installed on cutter head (4) through pin shaft (5), support device (1) has rotating through-hole (6) on it, cutter head (4) has rotating hole corresponding with pin shaft (5), pin shaft (5) is rotatably installed in rotating through-hole (6), and the end of pin shaft (5) is located in rotating hole.

2. A bulldozer blade support structure as set forth in claim 1 wherein, The end of horizontal support rod (2) has ball head (7), and the support device (1) has ball socket (8) corresponding to the ball head (7), and the ball head (7) is rotatably installed in the ball socket (8).

3. A bulldozer blade support structure as claimed in claim 2, wherein, It also includes a clamping plate (9) having a central inner hole (10), the ball head (7) includes a ball head body (11) and a ball head rear end (12), the central inner hole (10) is sleeved on the ball head rear end (12), the diameter of the central inner hole (10) is greater than the diameter of the ball head rear end (12) and less than the diameter of the ball head body (11), and the horizontal support rod (2) is installed on the support device (1) through the clamping plate (9).

4. A bulldozer blade support structure as claimed in claim 3, wherein, The clamping plate (9) has a first mounting hole (13), the periphery of the ball socket (8) has a second mounting hole (14) corresponding to the first mounting hole (13), and a mounting bolt (15) is installed in the first mounting hole (13) and the second mounting hole (14); the clamping plate (9) and the ball head body (11) have a gap.

5. The bulldozer blade support structure of claim 2, wherein, One end of the horizontal support rod (2) has a ball head (7), and the other end has a mounting ring (16), and the horizontal support rod (2) is rotatably installed on the push rod (3) through the mounting ring (16).

6. The bulldozer blade support structure of claim 2, wherein, The push rod (3) and the horizontal support rod (2) are at least two, the pin shaft (5) is located at one end of the support device (1), the ball socket (8) is located at the other end of the support device (1), the end of the support device (1) where the ball socket (8) is located has a bending part (17), and at least two ball sockets (8) are arranged on the bending part (17).

7. A bulldozer blade support structure as claimed in claim 6, wherein, The bending part (17) and the side wall of the main body of the support device (1) are further fixed with a reinforcing plate (18).

8. The bulldozer blade support structure of claim 6, wherein, The bending part (17) is further provided with an oil cup (19) for injecting lubricating oil into the ball socket (8).

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