A cooling fan device for a mine dozer

Abstract

The utility model relates to bulldozer heat dissipation technical field, concretely relates to a heat dissipation fan device for mine bulldozer. The heat dissipation fan device installs fan mechanism and drive motor on the inner side wall of front machine cover through self-lubricating hinge and lock catch, realizes that fan mechanism can open outward, is convenient for when needing maintenance or replacement of fan and drive motor not needing to carry out substantial dismounting, not needing lifting appliance, saving time and labour; simultaneously setting up outer protective net and inner protection before and after fan, on one hand can protect fan, prevent fan from being broken by external hard thing, on one hand, do protection, and will not hurt to maintenance personnel when maintaining.

Description

Technical Field

[0001] This utility model relates to the field of bulldozer technology, specifically to a cooling fan device for a mining bulldozer. Background Technology

[0002] With the continuous development of the national economy, the market demand for large mining bulldozers is constantly increasing. Due to the complexity and harshness of mining conditions, customers need to perform regular maintenance on bulldozers, especially the maintenance of the cooling fan system, which is even more important, otherwise it will affect the overall power performance of the machine.

[0003] Currently, there are two main fan mounting structures used in the industry. One is integrated installation on the radiator. This installation method can cause the radiator fins to be blocked by the fan, and the fan can also block the cleaning path of the air gun. A complete cleaning of the radiator requires the fan to be removed first, which is time-consuming and labor-intensive. The other is separate installation on the front hood of the bulldozer. This means that the fan is fixed to the inside of the front hood by an independent bracket and is not rigidly bound to the radiator. However, in order to ensure heat dissipation efficiency, its installation position is still close to the front of the radiator. As a result, when cleaning with the air gun, the fan blades will still block the radiator fins. A complete cleaning still requires the fan to be removed, which is the same as the first method. In addition, the hydraulic motor is usually fixed on the fan bracket, forming a sub-module of motor, fan and bracket. If the fan or hydraulic motor needs to be replaced, the fan and fan bracket or the entire sub-module must be removed before subsequent replacement can be carried out, which is time-consuming and labor-intensive. Utility Model Content

[0004] Based on the above-mentioned problems existing in the prior art, the purpose of this utility model embodiment is to provide a cooling fan device for a mining bulldozer.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: This utility model discloses a cooling fan device for a mining bulldozer. The cooling fan device includes a front hood, a fan mechanism and a ventilation grille installed on the front hood, the fan mechanism being installed on the inner side wall of the front hood via a self-lubricating hinge and a locking buckle, and a drive motor being installed on the fan mechanism; The self-lubricating hinge includes a left mounting plate, a right mounting plate, a connecting column, a connecting shaft assembly, and an internal hexagonal mounting bolt. The left mounting plate and the right mounting plate are detachably mounted on both sides of the connecting column via the connecting shaft assembly. The left mounting plate is connected to the fan mechanism, and the right mounting plate is connected to the inner wall of the front hood. The latch includes a clamping member, a connecting member, and a fixing member. The clamping member is installed on the inner side wall of the front hood. The connecting member is connected to the fixing member and is installed as a whole on the fan mechanism. The connecting member is snapped onto the clamping member.

[0006] Preferably, the fan mechanism has a first groove and a first mounting hole on each of its two side surfaces, and a second mounting hole and a round hole on each of the inner side walls of the front cover. The self-lubricating hinge mounts one end of the fan mechanism onto the front cover through the first mounting hole and the second mounting hole, and the latch mounts the other end of the fan mechanism onto the front cover through the first groove and the round hole.

[0007] Preferably, the left mounting plate and the right mounting plate are rectangular plate structures. The left mounting plate has a fourth mounting hole and the right mounting plate has a fifth mounting hole. Both the fourth and fifth mounting holes are adapted to the internal hexagonal mounting bolts. The connecting column is a columnar structure, and the sidewall of the connecting column is provided with multiple external threaded connection parts at intervals along the axial direction.

[0008] Preferably, the connecting shaft assembly includes a connecting shaft and an outer plate. The connecting shaft has an internal thread that matches the external thread. One end of the outer plate is connected to the connecting shaft, and the other end is connected to the left mounting plate or the right mounting plate.

[0009] Preferably, the clamping member includes a main body block, a first connecting block and a second connecting block, the first connecting block and the second connecting block are respectively fixed on both sides of the main body block, the first connecting block and the second connecting block are respectively provided with a fifth mounting hole, the fifth mounting hole corresponds one-to-one with the circular hole, and the side of the main body block is provided with a second groove.

[0010] Preferably, the connector includes a pin and a base. The pin is vertically fixed to the base. The fixing member includes a base plate, an upper support plate, a lower support plate, a first connector, and a second connector. The upper support plate is connected to one end of the base plate through the first connector, and the lower support plate is connected to the other end of the base plate through the second connector. A sixth mounting hole is provided on the base plate, and the pin is engaged in the second groove.

[0011] Preferably, the fan mechanism includes a windshield, a bracket mounted on the windshield, a drive motor mounted on the bracket, a fan mounted on the drive motor, the windshield including an outer protective net and an inner protective net, and the fan disposed between the outer protective net and the inner protective net.

[0012] Preferably, the bracket includes a support plate, an upper bending frame, and a lower bending frame. The support plate is square, and the upper bending frame and the lower bending frame are symmetrically installed on both sides of the support plate. A circular hole is provided in the middle of the support plate, and several third mounting holes are provided around the circular hole.

[0013] Preferably, a plurality of first mounting holes are provided on one side surface of the windshield, and a plurality of second mounting holes are provided on the inner side wall of the front hood. The self-lubricating hinge is fixed to the windshield and the inner side wall of the front hood by hexagonal socket head cap screws. A rubber ring is provided between the front hood and the windshield.

[0014] Preferably, the ventilation grille is hinged to both sides of the front hood via small hinges. The ventilation grille includes a left ventilation grille and a right ventilation grille. The upper and lower parts of the contact points of the left ventilation grille and the right ventilation grille are respectively fixed to both sides of the front hood by bolts.

[0015] The beneficial effects of this utility model are as follows: This utility model provides a cooling fan device for mining bulldozers. This cooling fan device uses self-lubricating hinges and latches to mount the fan mechanism and drive motor on the inner wall of the front hood, allowing the fan mechanism to open outwards. This facilitates maintenance or replacement of the fan and drive motor without extensive disassembly or lifting equipment, saving time and effort. Simultaneously, external protective nets and internal protection are installed before and after the fan, protecting it from damage by external hard objects and preventing accidental injury to maintenance personnel during repairs. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a structural schematic diagram of the cooling fan device of this utility model.

[0018] Figure 2 This is a schematic diagram of the fan mechanism of this utility model when it is open.

[0019] Figure 3 This is a partial exploded structural diagram of the cooling fan device of this utility model.

[0020] Figure 4 This is the utility model Figure 3 A magnified view of a portion of the image.

[0021] Figure 5 This is an exploded structural diagram of the self-lubricating hinge of this utility model.

[0022] Figure 6 This is a partially exploded structural diagram of the cooling fan device of this utility model from another perspective.

[0023] Figure 7 This is the utility model Figure 6 A magnified view of a portion of the image.

[0024] Figure 8This is an exploded structural diagram of the latch of this utility model.

[0025] Figure 9 This is an exploded structural diagram of the fan mechanism of this utility model.

[0026] Figure 10 This is a schematic diagram of the support structure of this utility model.

[0027] The component names and their numbers in the diagram are as follows: 100, Cooling fan assembly; 1, Fan mechanism; 2, Vent grille; 3, Front hood; 4, Radiator; 5, Drive motor; 6, Self-lubricating hinge; 7, Lock; 8, First fastener; 9, Second fastener; 10, First mounting hole; 11, Fan; 12, Windshield; 14, Bracket; 15, Rubber sheet; 121, Outer protective net; 122, Inner protective net; 141, Support plate; 142, Upper bending frame; 143, Lower bending frame; 1411, Round hole; 1412, Third mounting hole; 21, Left vent grille; 22, Right vent grille; 23, Small hinge; 24, Bolt; 30, Second mounting hole; 61, Left mounting plate; 62, Right... Mounting plate; 63. Connecting column; 64. Connecting shaft assembly; 65. Socket headstock mounting bolt; 611. Fourth mounting hole; 621. Fifth mounting hole; 631. Cover; 641. Connecting shaft; 642. Outer plate; 71. Clamping component; 72. Connecting component; 73. Fixing component; 74. First groove; 75. Round hole; 711. Main block; 712. First connecting block; 713. Second connecting block; 714. Fifth mounting hole; 7110. Second groove; 721. Pin; 722. Base; 723. Through hole; 731. Base plate; 732. Upper support plate; 733. Lower support plate; 734. First connecting component; 735. Second connecting component; 736. Sixth mounting hole. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] like Figure 1-2 As shown, this embodiment provides a cooling fan device 100 for a mining bulldozer, including a fan mechanism 1, a ventilation grille 2, a front hood 3, a radiator 4, and a drive motor 5. The fan mechanism 1 and the radiator 4 are mounted on the front hood 3. The fan mechanism 1 is mounted on the front side of the front hood 3, the radiator 4 is mounted on the rear side of the front hood 3, the ventilation grille 2 is mounted on the front side of the front hood 3, the fan mechanism 1 is mounted between the ventilation grille 2 and the radiator 3, and the drive motor 5 is mounted on the fan mechanism 1.

[0030] In this embodiment, as Figure 1 As shown, the ventilation grille 2 includes a left ventilation grille 21, a right ventilation grille 22, and a small hinge 23. The left ventilation grille 21 and the right ventilation grille 22 are respectively hinged to the left and right sides of the front cover 3 by the small hinge 23. The upper and lower parts of the contact points of the left ventilation grille 21 and the right ventilation grille 22 are respectively fixed to the front cover 3 by four bolts 24. That is, the ventilation grille 2 in this embodiment can be opened from the middle to the left and right sides, which facilitates the maintenance and repair of the internal fan mechanism 1, radiator 3 and drive motor 5.

[0031] In this embodiment, as Figure 3 and 6 As shown, the fan mechanism 1 is mounted on the front cover 3 via a self-lubricating hinge 6 and a latch 7. Three first mounting holes 10 are respectively provided on the upper and lower surfaces of one side of the fan mechanism 1. Three second mounting holes 30 are provided on the inner surface of the front cover 3 at the corresponding positions of the first mounting holes 10. The two ends of the self-lubricating hinge 6 fix the fan mechanism 1 to the front cover 3 through the first mounting holes 10 and the second mounting holes 30 respectively. On the other side of the fan mechanism 1 away from the self-lubricating hinge 6, two first grooves 74 are respectively provided on the upper and lower surfaces. On the other side of the front cover 3 away from the self-lubricating hinge 6, two round holes 75 are respectively provided on the upper and lower surfaces. The positions of the round holes 75 correspond to the positions of the first grooves 74.

[0032] In this embodiment, as Figure 3-5As shown, the self-lubricating hinge 6 includes a left mounting plate 61, a right mounting plate 62, a connecting post 63, a connecting shaft assembly 64, and hexagon socket head cap screws 65. The left mounting plate 61 and the right mounting plate 62 are detachably mounted on both sides of the connecting post 63 via the connecting shaft assembly 64. The left mounting plate 61 and the right mounting plate 62 have a rectangular plate structure, with three fourth mounting holes 611 and five mounting holes 621 respectively opened along the thickness direction. Each of the fourth mounting holes 611 and the fifth mounting holes 621 is fitted with three hexagon socket head cap screws 65. The three hexagon socket head cap screws 65 are distributed in a triangular array on the left mounting plate 61 and the right mounting plate 62, so that the left mounting plate 61 and the right mounting plate 62 are subjected to uniform force. The hex socket head cap screw 65 passes through the fourth mounting hole 611 and is screwed into the first mounting hole 10, allowing the left mounting plate 61 to be detachably mounted on the surface of the fan mechanism 1. The hex socket head cap screw 65 passes through the fifth mounting hole 621 and is screwed into the second mounting hole 30, allowing the right mounting plate 62 to be detachably mounted on the inner side of the front cover 3. The connecting column 63 is integrally formed and installed between the left mounting plate 61 and the right mounting plate 62. It is a hollow or solid columnar structure, with a circular cap 631 at the top of the column. The cap 631 can be connected to the column by threaded engagement, snap-fit, or integral forming, and is used to seal the interior of the column when the connecting column 63 is hollow. The side wall of the connecting column 63 is provided with three external threaded connection parts spaced axially. All external threaded connections have the same external thread specification. Each external threaded connection is screwed with a connecting shaft assembly 64. The connecting shaft assembly 64 includes a connecting shaft 641 and an outer plate 642. The connecting shaft 641 is a hollow cylinder with internal threads. The outer plate 642 is mounted on one end surface of the connecting shaft 641. The outer plate 642 is an arc-shaped plate, with one end connected to the connecting shaft 641 and the other end connected to either the left mounting plate 61 or the right mounting plate 62. In this embodiment, there are three sets of connecting shaft assemblies 64. Two sets of outer plates 642 are connected to the left mounting plate 61, and the other set is connected to the right mounting plate 62. The two sets of connecting shaft assemblies 64 connected to the left mounting plate 61 are respectively fixed to the left... The upper and lower ends of the mounting plate 61 near the connecting post 63 are fixed to the middle position of the connecting shaft assembly 64 connected to the right mounting plate 62 near the connecting post 63. In this way, the fan mechanism 1 and the inner side wall of the front hood 3 can be connected by the self-lubricating hinge 6 formed by the left mounting plate 61 fixed to the surface of the fan mechanism 1, the right mounting plate 62 fixed to the side wall of the front hood 3, the connecting post 63, and the connecting shaft assembly 64. The fan mechanism 1 can be opened outward, that is, the left mounting plate 61 can drive the fan mechanism 1 to rotate around the connecting post 63. The fan mechanism 1 can rotate around the connecting post 63, which facilitates the maintenance and repair of the heat sink 4 and the drive motor 5 behind the fan mechanism 1.

[0033] In this embodiment, as Figure 6-8As shown, the latch 7 includes a clamping member 71, a connecting member 72, and a fixing member 73. The connecting member 72 is connected to the fixing member 73. The clamping member 71 includes a main body block 711, a first connecting block 712, and a second connecting block 713. The first connecting block 712 and the second connecting block 713 are respectively fixed on both sides of the main body block 711. The first connecting block 712 and the second connecting block 713 are respectively provided with a fifth mounting hole 714, which corresponds one-to-one with two round holes 75. The clamping member 71 is installed on the side of the front cover 3 through the first fastener 8 passing through the fifth mounting hole 714 and the round holes 75. The side of the main body block 711 is provided with a second groove 7110. The connecting member 72 includes a pin 721 and a base 722. The pin 721 is vertically fixed on the base 722. The upper and lower sides of the base 722 are respectively provided with through holes 723. The connecting member 72 is generally T-shaped, and the fixing member 73 is generally U-shaped, specifically including a base plate 7. 31. Upper support plate 732, lower support plate 733, first connector 734, and second connector 735. The upper support plate 732 is connected to one end of the base plate 731 through the first connector 734, and the lower support plate 733 is connected to the other end of the base plate 731 through the second connector 735. The first connector 734 and the second connector 735 are arc-shaped. The base plate 731 has two sixth mounting holes 736. The fixing member 73 is fixed to the other end surface of the fan mechanism 1 away from the self-lubricating hinge 6. The sides of the upper support plate 732 and the lower support plate 736 are in contact with and fixed to the surface of the fan mechanism 1. The base 722 is fixed to the other side of the base plate 731. The second fastener 9 passes through the through hole 723 of the base 731 and the sixth mounting hole 736 of the base plate 731 to install the connector 72 on the fixing member 73. The pin 721 is engaged in the second groove 7110, which allows the other side of the fan mechanism 1 to be opened or closed and installed on the front cover 3.

[0034] In this embodiment, as Figure 9-10As shown, the fan mechanism 1 includes a fan 11, a windshield 12, a bracket 14, and a rubber sheet 15. The bracket 14 includes a support plate 141, an upper bending frame 142, and a lower bending frame 143. Both the upper bending frame 142 and the lower bending frame 143 are C-shaped. The support plate 141 is square. The upper bending frame 142 and the lower bending frame 143 are symmetrically arranged on both sides of the support plate 141. A circular hole 1411 is opened in the middle of the support plate 141. A third mounting hole 1412 is provided around the circular hole 1411. The drive motor 5 is fixed to the support plate 141 through the third mounting hole 1412 and bolts. The drive motor 5 is inserted into the circular hole 1411. The bracket 14 and the drive motor 5 are fixed to the windshield 12 as a whole. The fan 11 is mounted on the drive motor 5. An outer protective net 121 and an inner protective net 15 are installed on the windshield 12. The fan 11 is located between the outer protective net 121 and the inner protective net 122. The outer protective net 121 is removable, while the inner protective net 122 is not. By setting the outer protective net 121 and the inner protective net 122 on the front and rear sides of the fan 11, the fan 11 can be protected from being damaged by external hard objects, and maintenance personnel will not be accidentally injured during maintenance. The windshield 12 has a first mounting hole 10. In addition, a rubber sheet 15 is installed between the front cover 3 and the windshield 12. The rubber sheet 15 is a compressible rubber ring. The rubber sheet 15 is compressed between the windshield 12 and the front cover 3 to achieve a sealing effect. In this embodiment, the fan mechanism 1 can be opened outward through the self-lubricating hinge 6 and the first mounting hole 10.

[0035] This embodiment discloses a cooling fan device for a mining bulldozer. The fan mechanism 1 and the drive motor 5 are mounted on the inner wall of the front cover 3 by two self-lubricating hinges 6 and a locking buckle 7. This allows the fan mechanism 1 to be opened outward, so that when the fan 11 and the drive motor 5 need to be repaired or replaced, there is no need for extensive disassembly and assembly or lifting tools, saving time and effort. When the radiator 4 is blocked, cleaning the radiator 4 does not require removing the fan mechanism 1 and the radiator 4. At the same time, an outer protective net 121 and an inner protective net 122 are set in front and behind the fan 11. On the one hand, the fan 11 can be protected from being damaged by external hard objects. On the other hand, it can also protect the maintenance personnel from being accidentally injured during maintenance.

[0036] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the scope of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A cooling fan device for a mining bulldozer, characterized in that, The cooling fan device includes a front hood, a fan mechanism and a ventilation grille mounted on the front hood, the fan mechanism being mounted on the inner wall of the front hood via a self-lubricating hinge and a latch, and a drive motor being mounted on the fan mechanism; The self-lubricating hinge includes a left mounting plate, a right mounting plate, a connecting column, a connecting shaft assembly, and an internal hexagonal mounting bolt. The left mounting plate and the right mounting plate are detachably mounted on both sides of the connecting column via the connecting shaft assembly. The left mounting plate is connected to the fan mechanism, and the right mounting plate is connected to the inner wall of the front hood. The latch includes a clamping member, a connecting member, and a fixing member. The clamping member is installed on the inner side wall of the front hood. The connecting member is connected to the fixing member and is installed as a whole on the fan mechanism. The connecting member is snapped onto the clamping member.

2. The cooling fan device for a mining bulldozer according to claim 1, characterized in that, The fan mechanism has a first groove and a first mounting hole on each of its two sides. The inner sidewalls of the front cover have a second mounting hole and a round hole on each of its two sides. The self-lubricating hinge mounts one end of the fan mechanism onto the front cover through the first mounting hole and the second mounting hole. The latch mounts the other end of the fan mechanism onto the front cover through the first groove and the round hole.

3. The cooling fan device for a mining bulldozer according to claim 2, characterized in that, The left mounting plate and the right mounting plate are rectangular plate structures. The left mounting plate has a fourth mounting hole and the right mounting plate has a fifth mounting hole. Both the fourth and fifth mounting holes are adapted to the internal hexagonal mounting bolts. The connecting column is a column structure, and the side wall of the connecting column is provided with multiple external threaded connection parts at intervals along the axial direction.

4. The cooling fan device for a mining bulldozer according to claim 3, characterized in that, The connecting shaft assembly includes a connecting shaft and an outer plate. The connecting shaft has an internal thread that matches the external thread. One end of the outer plate is connected to the connecting shaft, and the other end is connected to the left mounting plate or the right mounting plate.

5. The cooling fan device for a mining bulldozer according to claim 2, characterized in that, The clamping component includes a main body block, a first connecting block, and a second connecting block. The first connecting block and the second connecting block are respectively fixed on both sides of the main body block. The first connecting block and the second connecting block are respectively provided with a fifth mounting hole, which corresponds one-to-one with the circular hole. The side of the main body block is provided with a second groove.

6. The cooling fan device for a mining bulldozer according to claim 5, characterized in that, The connector includes a pin and a base. The pin is vertically fixed to the base. The fixing component includes a base plate, an upper support plate, a lower support plate, a first connector, and a second connector. The upper support plate is connected to one end of the base plate through the first connector, and the lower support plate is connected to the other end of the base plate through the second connector. A sixth mounting hole is provided on the base plate, and the pin is engaged in the second groove.

7. The cooling fan device for a mining bulldozer according to claim 6, characterized in that, The fan mechanism includes a windshield, a bracket mounted on the windshield, a drive motor mounted on the bracket, and a fan mounted on the drive motor. The windshield includes an outer protective net and an inner protective net, and the fan is disposed between the outer protective net and the inner protective net.

8. The cooling fan device for a mining bulldozer according to claim 7, characterized in that, The bracket includes a support plate, an upper bending frame, and a lower bending frame. The support plate is square. The upper bending frame and the lower bending frame are symmetrically installed on both sides of the support plate. A circular hole is opened in the middle of the support plate, and several third mounting holes are provided around the circular hole.

9. The cooling fan device for a mining bulldozer according to claim 7, characterized in that, The windshield has several first mounting holes on one side surface, and the front hood has several second mounting holes on its inner side wall. The self-lubricating hinge is fixed to the windshield and the inner side wall of the front hood by hexagonal socket head cap screws. A rubber ring is provided between the front hood and the windshield.

10. The cooling fan device for a mining bulldozer according to claim 1, characterized in that, The ventilation grille is hinged to both sides of the front hood via small hinges. The ventilation grille includes a left ventilation grille and a right ventilation grille. The upper and lower parts of the contact points of the left ventilation grille and the right ventilation grille are respectively fixed to both sides of the front hood with bolts.

Images