TWM543232U - Conveyor belt cleaner - Google Patents

Description

Conveyor cleaner

The present invention provides a conveyor belt cleaner, especially a spring force application device which is simple in structure and can quickly adjust the blade contact pressure.

Conveyor belts (belts) inevitably adhere to the surface of the conveyor belt in the process of transporting bulk cargo such as gravel, concrete or coal mines. If these residues are not removed properly, it will affect the conveying effect of the conveyor belt and shorten the service life of the conveyor belt. In order to scrape the adhered residue on the conveyor belt and prevent pollution of the environment, a first blade cleaner is installed at the blanking point of the conveyor belt and a second blade cleaner is installed below the conveyor belt. By the tip of the blade abutting against the surface of the conveyor belt, the residue on the conveyor belt can be cleaned during the return stroke of the conveyor belt cycle.

However, when the blade of the conventional blade cleaner is subjected to the impact force caused by the vibration or the impact force caused by the belt beating, the blade and the surface of the conveyor belt often have too tight or too loose contact, which causes scraping of the residue. The cleaning effect is reduced. In order to improve this problem, the general blade cleaner will be provided with a swing adjustment group (elastic device) for providing cushioning and damping effect. When the blade tip is subjected to the impact of the surface of the conveyor belt, the blade can be laterally bent and elastically restored. Bit. However, the components of the conventional swing adjustment group (elastic device) are complicated and complicated to assemble, resulting in an increase in cost. In addition, when the conveyor belt is bouncing, the spring biasing force of the conventional swing adjustment group is unstable, causing scraping on the conveyor belt. The effect of the residue cannot be improved.

Accordingly, the object of the present invention is to provide a conveyor belt cleaner which can provide a stable biasing force to abut the blade against the surface of the conveyor belt, and has the advantages of simple structure and convenient assembly, and in addition, the elastic force of the cleaner is applied. The device can conveniently adjust the magnitude of the biasing force to achieve the effect of quickly adjusting the blade contact pressure.

The present invention provides a conveyor belt cleaner comprising a doctor blade holder, a shaft rod, an elastic force applying device and at least one scraper mounted on the shaft, the blade holder comprising two spaced apart bracket plates, the shaft rod system The two bracket plates are rotatably assembled. The elastic force applying device comprises a driving member, a screw and a spring, the driving member comprises a sleeve and an extending arm protruding outward from the outer surface of the sleeve, the sleeve providing a corresponding end of the shaft The portion passes through and is coupled to the shaft, and the extending arm is provided with a slot. The screw has a first end, a second end and an intermediate portion between the first end and the second end, the first end of the screw is positioned on a corresponding bracket plate, and the second of the screw The end passes through the slot of the driving member, and the middle portion of the screw is provided with a first spring seat and a second spring seat. The spring is assembled on the screw and is located between the first and second spring seats for applying an elastic bias to the driver to abut the blade against the surface of the conveyor belt.

In one embodiment, the extension arm includes a first segment extending outwardly from the outer surface of the sleeve and a second segment extending outwardly from the outer end of the first segment and forming an angle with the first segment The slot is provided on the second segment. The direction in which the second segment extends is formed at an angle of between 10 and 20 degrees with respect to the direction of extension of the first segment.

In an embodiment, the bottom of the first spring seat forms a protrusion, and the protrusion is located in the slot of the extension arm, so that the first spring seat is firmly seated on the extension arm.

In an embodiment, the screw is further provided with a positioning screw, and the positioning screw is located between the extension arm and the first end, so that the extension arm is moved downward by the biasing force of the spring, the positioning screw Can be used as a blocking point.

In one embodiment, each of the bracket plates has a mounting seat having two plates spaced apart for the pivotally disposed between the shafts, the two plates having oppositely disposed holes at a height distance A locating pin is provided to allow the shaft to be rotatably constrained to be positioned on the bracket plate.

Preferably, a bushing is provided in the two plates, and the bushing provides the shaft to be worn.

Other objects, advantages and features of the present invention will be apparent from the following description of the preferred embodiments illustrated herein.

10‧‧‧Flexor application device

12‧‧‧cleaner

14‧‧‧Conveyor belt

16‧‧‧ scraper holder

18‧‧‧ shaft

20‧‧‧Scraper

22‧‧‧ bracket plate

24‧‧‧ Mounting

26‧‧‧ board

28‧‧‧ bushing

30‧‧‧Locating pin

32‧‧‧ hole

34‧‧‧Flange

36‧‧‧Outside end face

38‧‧‧End

40‧‧‧ knife holder

42‧‧‧ scraper

44‧‧‧Fixed components

46‧‧‧ recess

48‧‧‧Inlay

50‧‧‧Combination hole

52‧‧‧ Ring Department

54‧‧‧Connecting rod

56‧‧‧ screws

58‧‧‧ bottom

60‧‧‧ Positioning block

61‧‧‧ screws

62‧‧‧Drives

64‧‧‧ screw

66‧‧‧ Spring

68‧‧‧Sleeve

70‧‧‧Extension arm

72‧‧‧ screws

74‧‧‧Perforation

76‧‧‧ first paragraph

78‧‧‧second paragraph

80‧‧‧ slots

82‧‧‧ first end

84‧‧‧second end

85‧‧‧Intermediate

86‧‧‧Axis hole

88‧‧‧ pin

90‧‧‧Combined block

92‧‧‧bond hole

94‧‧‧ screws

96‧‧‧First spring seat

98‧‧‧Second spring seat

100‧‧‧ shaft hole

102‧‧‧Axis hole

104‧‧‧Flange

106‧‧‧Flange

108‧‧‧Bumps

110‧‧‧ Pressure adjustment screw

112‧‧‧Setting screws

114‧‧‧Anti-off screws

116‧‧‧Top

A‧‧‧ angle

S‧‧‧ accommodating space

Figure 1 shows an exploded view of an element of a conveyor cleaner using the present invention.

Figure 2 shows a front view of the conveyor cleaner of Figure 1.

Figure 3 shows a top view of the conveyor cleaner of Figure 1.

Figure 4 shows a schematic view of the cleaner of Figure 1 disposed downstream of the conveyor belt.

Figure 5 is an exploded perspective view of the spring applying device and the doctor blade holder of the cleaner of Figure 1.

Figure 6 shows a cross-sectional view taken along line 6-6 of Figure 3 and showing a schematic view of the cleaner disposed downstream of the conveyor belt.

Figure 7 is a schematic view showing the squeegee of Figure 6 yawed away from the conveyor belt.

Figure 8 is a plan view showing the driving member of the elastic force applying device of Figure 5.

The preferred structural aspects of the present invention will now be described by way of example only, but not by way of limitation, and reference to the accompanying drawings in which: FIG. 1 to FIG. 3 shows a creative conveyor belt including the elastic applying device 10. The cleaner 12, FIG. 4, shows that the cleaner 12 is disposed at the blanking of a conveyor belt 14 for scraping the residue on the conveyor belt 14. The cleaner 12 includes a doctor blade holder 16, a shaft 18, a blade set 20 mounted on the shaft 18, and at least one elastic force applying device 10. In the present embodiment, the conveyor cleaner 12 includes two elastic force applying devices 10.

The squeegee holder 16 includes a pair of bracket plates 22 that are spaced apart across the widthwise sides of the conveyor belt 14. Each of the bracket plates 22 is provided with a mounting seat 24, and the mounting base 24 includes two plate bodies 26 which are disposed to form an accommodating space 27, and a bushing 28 is disposed in the accommodating space S between the two plate bodies 26. The two plates 26 each have oppositely disposed holes 32 at a height distance. When a locating pin 30 passes through a hole 32 provided in the two plate body 26, the bushing 28 will be constrained to be positioned on the bracket plate 22, the bushing 28 having a flange 34 at the outer end for abutting The outer end surface 36 of the plate body 26 is positioned. The shape of the bushing 28 may vary depending on the accommodating space 27, such as a circle, a square, a hexagon, or the like.

The shaft 18 is a round rod (or a round tube), and the length of the shaft 18 is greater than the distance between the two bracket plates 22, so that the shaft 18 can be rotatably assembled through the two bushings 28. On the two bracket plates 22 of the doctor blade holder 16, the two end portions 38 of the shaft 18 extend out of the two bushings 28.

The doctor blade set 20 includes a tool holder 40 coupled to the shaft 18, at least one doctor blade 42 assembled to the tool holder, and two retaining members 44. In the present embodiment, the doctor blade set 20 includes a plurality of scrapers 42. The lower end of the seat 40 forms a recess 46 for snugly covering the top surface of the shaft 18. A slot 48 is formed in the upper end of the blade holder 40 for providing the blade 42 to be embedded, and the two end faces of the blade holder 40 respectively have two coupling holes 50. Each of the fixing members 44 has a ring portion 52 through which the shaft 18 can be inserted, and two connecting rods 54 that can be inserted into the coupling hole 50. The ring portion 52 is locked by the screw 56, so that the seat 40 can be firmly assembled. On the shaft 18. The scraper 42 may be made of a wear resistant material such as tungsten carbide, ceramic or the like or a rubber material, and the bottom portion 58 of the scraper 42 has an outer shape that can be fitted into the recess 48 of the insert 40. A positioning block 60 is assembled on both sides of the holder 40. After the number of the blades 42 is assembled on the holder 40, the positioning block 60 is locked to the holder 40 by screws 61 to fix the blade 42.

The spring applying device 10 is mounted on a corresponding bracket plate 22 for applying an biasing force to the shaft 18. As shown in FIGS. 5 to 7, the elastic force applying device 10 includes a driving member 62, a screw 64 coupled to the driving member 62, and a spring 66 assembled to the screw 64. The driving member 62 includes a hollow sleeve 68 and an extending arm 70 projecting outwardly from the outer surface of the sleeve 68. The sleeve 68 is permeable to a corresponding end 38 of the shaft 18 and A plurality of screws 72 are coupled to the shaft 18 by a plurality of screws 72 that pass through the perforations 74 provided in the sleeve 68 and are locked to the shaft 18 such that the driver 62 can pivot with the shaft 18. The extension arm 70 includes a first section 76 extending outwardly from the outer surface of the sleeve 68 in a direction perpendicular to the axial direction and extending outwardly from the outer end of the first section 76 and forming with the first section 76 A second section 78 of an angle (A) is provided with a slot 80 in the second section 78. In the present embodiment, the angle (A) of the extending direction of the second segment 78 relative to the extending direction of the first segment 76 is about 15 degrees (see FIG. 8), and the angle (A) is set in addition to the spring. The direction of application of 66 has a better implementation angle, and the angle (A) can also cause the extension arm 70 to have a shock absorbing effect, that is, the process of scraping the carrier 16 on the surface of the conveyor belt (belt). In the event of a jump, in addition to overcoming the bounce by the elastic applying device 10, the toughness produced by the curved extension arm 70 can also mitigate the shock.

The screw 64 has a first end (lower end) 82, a second end (upper end) 84 and an intermediate portion 85 between the first end 82 and the second end 84. In this embodiment, the first end 82 is formed into a cylindrical shape and has a shaft hole 86 therein for providing a pin 88 to pass through, and the pin 88 is inserted A coupling hole 92 of a coupling block 90 on the bracket plate 22 is fixed by a screw 94 such that the first end 82 of the screw 64 is positioned below the extension arm 70 and positioned on the bracket plate 22. The second end 84 of the screw 64 passes through the slot 80, and the intermediate portion 85 of the screw 64 is provided with a first spring seat 96 and a second spring seat 98. The first and second spring seats 96, 98 The interior has a shaft bore 100, 102 through which the screw 64 can pass and a flange 104, 106 against which the spring 66 can abut, such that the spring 66 is positioned between the first and second spring seats 96, 98. Furthermore, a bottom portion of the first spring seat 96 defines a protrusion 108. The protrusion 108 is located in the slot 80 of the extension arm 70 and the outer diameter of the protrusion 108 is approximately equal to the slot diameter of the slot 80. The first spring seat 96 is securely seated on the extension arm 70 for providing a spring 66 abutment. In this embodiment, the screw 64 is further provided with a pressure adjusting screw 110 and a positioning screw 112. The pressure adjusting screw 110 abuts against the top surface of the second spring seat 98, and the pressure adjusting screw 110 can be adjusted to make the The second spring seat 98 is slidable relative to the screw 64 to change position to change the amount of elongation of the spring 66, thereby adjusting the biasing force of the spring 66. In the embodiment, a retaining screw 114 is further disposed on the second end 84 of the screw 64 to prevent the pressure adjusting screw 110 from coming off the screw 64. The positioning screw 112 is located between the extension arm 70 and the first end 82. When the extension arm 70 is moved downward by the biasing force of the spring 66, the positioning screw 112 can serve as a blocking positioning point. The position of the set screw 112 on the screw 64 is adjustable such that the initial position of the blade 42 biased by the spring 66 can be controlled.

The cleaner 12 formed according to the present invention is assembled at the blanking of the conveyor belt 14 by the bracket plate 22, and the shaft 64 or the holder 40 can be rotated to adjust the blade 42 relative to the conveyor belt 14. The inclination angle of the blade 42 is adjusted to an abutting position which is in conformity with the surface of the conveyor belt 14; as shown in Fig. 6, when the tip end 116 of the blade 42 is adjusted to abut against the surface of the conveyor belt 14, the elastic force The entrainment member 62 of the applicator 10 will be rotated an angle with the shaft 64 in a clockwise direction to compress the spring 66 to provide an elastic force biased against the counterclockwise direction of the blade 42 such that the tip 116 of the blade 42 can abut against the The surface of the conveyor belt 14. Furthermore, as described above, the biasing force of the spring 66 can be adjusted by the movement of the pressure adjusting screw 110. Therefore, in the implementation of the cleaner 12 scraping off the residue on the surface of the conveyor belt 14, if the blade 42 is subjected to the impact force caused by the vibration or the impact force caused by the beating of the conveyor belt 14, as shown in FIG. The spring 66 can be absorbed by the spring 66, so that the scraper 42, the shaft 64 and the driving member 62 are yawed. Further, it is ensured that the scraper 42 cleans the conveyor belt 14 by scraping the residue.

This design, with the above structural design, will have the following advantages:

1. The number of components is small, the structure is simple and the assembly is convenient.

2. Forming a predetermined angle (A) by the second section 78 of the extension arm 70 and the first section 76 such that the first section 76 is outward from the outer surface of the sleeve 68 in a direction perpendicular to the axis Extending, and the second section 78 is substantially perpendicular to the direction of extension of the screw 64, the spring force of the spring 66 can be effectively applied to the second section 78 of the extension arm 70 (see Figure 7).

3. The bottom of the first spring seat 96 is provided with a protrusion 108 for engaging in the slot 80 of the extension arm 70, so that the first spring seat 96 can be stably seated on the extension arm 70.

4. When the positioning screw 112 is disposed between the extension arm 70 and the first end 82 such that the extension arm 70 is moved downward by the elastic force of the spring 66, the positioning screw 112 can serve as a blocking positioning point. In order to adjust the initial state position of the blade 42.

5. When the cleaner 12 is to be attached or detached, the cleaner 12 that has been removed from the state of the elastic applying device 10 can easily dispose or take out the cleaner 12 only after the locating pins 30 of the mounting brackets 24 have been withdrawn. Very convenient.

The above description is only a detailed description of the preferred embodiment of the present invention and is not intended to limit the present invention. All of the scope of the present invention is subject to the scope of the following patent application, and the embodiments of the invention as described in the following claims should be included in the present invention.

10‧‧‧Flexor application device

12‧‧‧cleaner

16‧‧‧ scraper holder

18‧‧‧ shaft

20‧‧‧Scraper

22‧‧‧ bracket plate

24‧‧‧ Mounting

26‧‧‧ board

28‧‧‧ bushing

30‧‧‧Locating pin

32‧‧‧ hole

34‧‧‧Flange

36‧‧‧Outside end face

38‧‧‧End

40‧‧‧ knife holder

42‧‧‧ scraper

44‧‧‧Fixed components

46‧‧‧ recess

48‧‧‧Inlay

50‧‧‧Combination hole

52‧‧‧ Ring Department

54‧‧‧Connecting rod

56‧‧‧ screws

58‧‧‧ bottom

60‧‧‧ Positioning block

61‧‧‧ screws

62‧‧‧Drives

64‧‧‧ screw

66‧‧‧ Spring

68‧‧‧Sleeve

70‧‧‧Extension arm

80‧‧‧ slots

82‧‧‧ first end

88‧‧‧ pin

96‧‧‧First spring seat

98‧‧‧Second spring seat

110‧‧‧ Pressure adjustment screw

114‧‧‧Anti-off screws

116‧‧‧Top

Claims (10)

A conveyor belt cleaner comprising a doctor blade holder, a shaft rod, an elastic force applying device and at least one scraper mounted on the shaft, the blade holder comprising two spaced apart bracket plates, the shaft rod being rotatably Mounted on the two bracket plates; the elastic force applying device comprises: a driving member comprising a sleeve and an extending arm protruding outward from the outer surface of the sleeve, the sleeve providing a correspondence of the shaft The end portion passes through and is coupled to the shaft, the extending arm is provided with a slot; a screw has a first end, a second end and is located between the first end and the second end a first end of the screw can be positioned on a corresponding bracket plate, a second end of the screw passes through the slot of the driving member, and a middle portion of the screw is provided with a first spring seat and a second spring And a spring assembled on the screw and positioned between the first and second spring seats for applying an elastic bias to the driver. The conveyor belt cleaner of claim 1, wherein the extension arm includes a first segment extending outwardly from an outer surface of the sleeve and extending outwardly from an outer end of the first segment and the first A second segment forming an angle, the slot being disposed on the second segment. The conveyor cleaner according to claim 2, wherein the extending direction of the second segment is between 10 and 20 degrees with respect to the extending direction of the first segment. The conveyor belt cleaner of claim 1, wherein the first end of the screw is formed into a cylindrical shape and has a shaft hole therein for providing a pin through, the pin being coupled to the bracket plate The first end of the screw is located below the extension arm and is positioned on the bracket plate. The conveyor belt cleaner of claim 1, wherein the interiors of the first and second spring seats respectively have a shaft hole through which the screw passes and a flange through which the spring abuts. The conveyor belt cleaner of claim 1, wherein the bottom of the first spring seat forms a protrusion, and the protrusion is located in the slot of the extension arm, so that the first spring seat can be stably seated. On the extension arm. The conveyor belt cleaner of claim 1, wherein the screw is further provided with a positioning screw, the positioning screw is located between the extension arm and the first end, so that the extension The set screw acts as a blocking anchor point when the arm is moved downward by the spring force of the spring. The conveyor belt cleaner of claim 1, wherein the screw is further provided with a pressure adjusting screw, the pressure adjusting screw is abutting against a top surface of the second spring seat, when the pressure adjusting screw is mobilized, The second spring seat is slidable relative to the screw to change the elongation of the spring, and the second end of the screw is further provided with a retaining screw for preventing the pressure adjusting screw from coming off the screw. A conveyor belt cleaner comprising a doctor blade holder, a shaft rod, an elastic force applying device and at least one scraper mounted on the shaft, the blade holder comprising two spaced apart bracket plates, the shaft rod being rotatably The bracket is assembled on the two brackets, and the elastic applying device elastically connects the shaft and the scraper holder, so that the shaft is rotated by an elastic limit, wherein each bracket is provided with a mounting seat, and the mounting seat has a partition The two plates are disposed, and each of the plates has oppositely disposed holes at a height distance to provide a positioning pin so that the shaft is rotatably constrained to be positioned on the bracket plate. A conveyor belt cleaner according to claim 9 wherein a bushing is provided in the body of the second plate, the bushing providing the shaft for piercing.