Handheld grinding device for wood processing

Abstract

The utility model discloses a handheld grinding device for wood processing, which belongs to the technical field of wood grinding and comprises a supporting shell, two groups of telescopic shells, a motor, a transmission gear box, a first transmission mechanism, two groups of second transmission mechanisms and two grinding discs. The two sets of telescopic shells are symmetrically arranged and slidably connected to the two opposite sides of the supporting shell, the motor, the transmission gear box and the first transmission mechanism are all arranged in the supporting shell, and the motor is connected with and drives the transmission gear box; the motor in the supporting shell is connected with and drives the transmission gear box, the transmission gear box is in driving connection with the first transmission mechanism, the first transmission mechanism is in sliding connection with and drives the second transmission mechanism, and the second transmission mechanism is connected with and drives the installation gear shaft. Therefore, the two grinding discs located on the inner sides of the two telescopic shells are driven to rotate and work, and the problem that the efficiency is low due to single-face grinding is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of wood grinding, and in particular relates to a handheld grinding device for wood processing. Background Art

[0002] Wood is widely used in construction, decoration, furniture and other fields. Wood boards are wooden boards made of complete wood. These boards are strong and durable, with natural textures, and are the best choice for decoration. In the process of production and processing, the surface of wood needs to be polished to ensure the subsequent use needs.

[0003] At present, many existing wood grinding equipment are relatively large, which causes inconvenience in use. Small handheld grinding equipment is more likely to grind on one side, which greatly reduces work efficiency. Utility Model Content

[0004] The utility model aims to solve the problems that large-scale grinding equipment is inconvenient to use and single-side grinding of handheld equipment is inefficient, and proposes a handheld grinding device for wood processing.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a hand-held sanding device for wood processing: comprising a supporting shell, two groups of telescopic shells, a motor, a transmission gear box, a first transmission mechanism, two groups of second transmission mechanisms and two sanding discs, the two groups of telescopic shells are symmetrically arranged and slidably connected to the opposite sides of the supporting shell, the motor, the transmission gear box and the first transmission mechanism are all arranged in the supporting shell, the motor is connected to and drives the transmission gear box, the transmission gear box is connected to and drives the first transmission mechanism, the two sanding discs are respectively connected to the two groups of telescopic shells through two mounting gear shafts, and the two sanding discs are located between the two groups of telescopic shells, the two groups of the second transmission mechanisms are respectively arranged in the two groups of telescopic shells, one end of the second transmission mechanism is slidably connected to the first transmission mechanism, and the other end of the second transmission mechanism is connected to and drives the mounting gear shaft.

[0006] As a further description of the above technical solution:

[0007] A slide rail is disposed outside the telescopic housing, a slide groove is disposed inside the supporting housing, and the slide rail is slidably connected in the slide groove.

[0008] As a further description of the above technical solution:

[0009] The first transmission mechanism includes a worm gear shaft, a worm wheel body and a worm body, the worm body is installed on the transmission gear box, the worm gear shaft is connected to the support body through a bearing seat, the worm wheel body is installed on the worm gear shaft, and the worm wheel body is meshed with the worm body.

[0010] As a further description of the above technical solution:

[0011] The second transmission mechanism includes a transmission rod, a telescopic shaft, two first bevel gears and two second bevel gears. The transmission rod and the telescopic shaft are both installed in the telescopic housing through a bearing seat. The axis of the telescopic shaft is parallel to the axis of the mounting gear shaft, and the telescopic shaft is slidably connected in the worm gear shaft. The transmission rod is located between the telescopic shaft and the mounting gear shaft. The two first bevel gears are respectively installed at the ends of the telescopic shaft and the mounting gear shaft. The two second bevel gears are respectively installed at opposite ends of the transmission rod. The first bevel gear is meshed with the second bevel gear, and the first bevel gear corresponds to the second bevel gear one by one.

[0012] As a further description of the above technical solution:

[0013] A telescopic tube is arranged on the worm gear shaft, the telescopic shaft is inserted into the telescopic tube, and the external splines on the outer wall of the telescopic shaft are meshed with the internal splines in the inner wall of the telescopic tube.

[0014] As a further description of the above technical solution:

[0015] The supporting shell is provided with a plurality of control buttons, and the plurality of control buttons are electrically connected to the motor.

[0016] As a further description of the above technical solution:

[0017] A handle is provided on the supporting shell.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0019] 1. In the utility model, the motor in the supporting shell is connected and drives the transmission gear box, the transmission gear box drives and connects the first transmission mechanism, the first transmission mechanism is connected and drives the second transmission mechanism through sliding connection, the second transmission mechanism is connected and drives the mounting gear shaft, thereby driving the two grinding discs located inside the two sets of telescopic shells to rotate, thereby solving the problem of low efficiency caused by single-sided grinding.

[0020] 2. In the utility model, the telescopic shell can slide outward along the supporting shell, and the distance between the sanding discs on both sides of the two sets of telescopic shells is increased, which is convenient for sanding when the wood size is too large. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The present invention is a schematic diagram of the overall structure of a handheld grinding device for wood processing.

[0022] Figure 2 An exploded view of a hand-held sanding device for wood processing.

[0023] Figure 3 The present invention is a cross-sectional view of a hand-held sanding device for wood processing.

[0024] Figure 4 for Figure 3 Sectional diagram of usage status.

[0025] Legend:

[0026] 1. Support shell; 2. Telescopic shell; 3. Motor; 4. Transmission gear box; 5. First transmission mechanism; 51. Worm gear shaft; 52. Worm body; 53. Worm body; 6. Second transmission mechanism; 61. Transmission rod; 62. Telescopic shaft; 63. First bevel gear; 64. Second bevel gear; 7. Sanding disc; 8. Mounting gear shaft; 9. Slide rail; 10. Slide groove; 11. Telescopic tube; 12. Control button; 13. Handle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] See also Figure 1-4The utility model provides a technical solution: a hand-held grinding device for wood processing, comprising a supporting shell 1, two groups of telescopic shells 2, a motor 3, a transmission gear box 4, a first transmission mechanism 5, two groups of second transmission mechanisms 6 and two sanding discs 7, the two groups of telescopic shells 2 are symmetrically arranged and slidably connected to the opposite sides of the supporting shell 1, the motor 3, the transmission gear box 4 and the first transmission mechanism 5 are all arranged in the supporting shell 1, the motor 3 is connected to and drives the transmission gear box 4, the transmission gear box 4 is connected to and drives the first transmission mechanism 5, the two sanding discs 7 are respectively connected to the two groups of telescopic shells 2 through two mounting gear shafts 8, and the two sanding discs 7 are located between the two groups of telescopic shells 2, the two groups of the second transmission mechanisms 6 are respectively arranged in the two groups of telescopic shells 2, one end of the second transmission mechanism 6 is slidably connected to the first transmission mechanism 5, and the other end of the second transmission mechanism 6 is connected to and drives the mounting gear shaft 8;

[0029] The telescopic housing 2 is provided with a slide rail 9 on the outside, and the support housing 1 is provided with a slide groove 10 on the inside. The slide rail 9 is slidably connected in the slide groove 10 to ensure that the connection between the telescopic housing 2 and the support housing 1 does not rotate relative to each other.

[0030] The first transmission mechanism 5 includes a worm gear shaft 51, a worm wheel body 52 and a worm body 53. The worm body 53 is mounted on the transmission gear box 4. The worm gear shaft 51 is connected to the support body through a bearing seat. The worm wheel body 52 is mounted on the worm gear shaft 51, and the worm wheel body 52 is meshed with the worm body 53 to ensure that the transmission gear box 4 smoothly transmits power from the worm body 53 to the worm wheel body 52, thereby driving the worm gear shaft 51 to rotate;

[0031] The second transmission mechanism 6 includes a transmission rod 61, a telescopic shaft 62, two first bevel gears 63 and two second bevel gears 64. The transmission rod 61 and the telescopic shaft 62 are both installed in the telescopic housing 2 through a bearing seat. The axis of the telescopic shaft 62 is parallel to the axis of the mounting gear shaft 8, and the telescopic shaft 62 is slidably connected in the worm gear shaft 51. The transmission rod 61 is located between the telescopic shaft 62 and the mounting gear shaft 8. The two first bevel gears 63 are respectively installed at the ends of the telescopic shaft 62 and the mounting gear shaft 8. The two second bevel gears 64 are respectively installed at opposite ends of the transmission rod 61. The first bevel gear 63 is meshed with the second bevel gear 64, and the first bevel gear 63 corresponds to the second bevel gear 64 one by one. Through the above-mentioned gear transmission connection, power is transmitted from the first transmission mechanism 5 to the second transmission mechanism 6, driving the mounting gear shaft 8 to rotate;

[0032] The worm gear shaft 51 is provided with a telescopic tube 11, the telescopic shaft 62 is inserted into the telescopic tube 11, and the external splines on the outer wall of the telescopic shaft 62 are meshed with the internal splines in the inner wall of the telescopic tube 11, so as to ensure that the telescopic tube 11 and the telescopic shaft 62 do not rotate relative to each other, thereby ensuring smooth power transmission;

[0033] The supporting shell 1 is provided with a plurality of control buttons 12, the plurality of control buttons 12 are electrically connected to the motor 3, and the control buttons 12 control the use state of the motor 3;

[0034] The support shell 1 is provided with a handle 13 for easy holding.

[0035] Working principle: First, the handle 13 on the supporting shell 1 is convenient for construction workers to hold, and the telescopic shell 2 is symmetrically distributed on both sides of the supporting shell 1, and the two are slidably connected. The motor 3 is turned on by clicking the control button 12 on the supporting shell 1, and the motor 3 transmits power to the first transmission mechanism 5 through the transmission gear box 4. The first transmission mechanism 5 is meshed between the worm body 53 and the worm wheel body 52, and the power of the motor 3 is smoothly transmitted to the worm gear shaft 51. Then, the second transmission mechanism 6 in the two sets of telescopic shells 2 is slidably connected to the telescopic tube 11 on the worm gear shaft 51 through the telescopic shaft 62. The second transmission mechanism 6 is meshed with the second bevel gear 64 at one end of the transmission rod 61 through the first bevel gear 63 on the telescopic shaft 62, and the second bevel gear 64 at the other end of the transmission rod 61 is meshed with the first bevel gear 63 on the mounting gear shaft 8, so that the power is transmitted to the mounting gear shaft 8. The mounting gear shaft 8 drives the two sets of sanding discs 7 located inside the two sets of telescopic shells 2 to work, which solves the problem of single-sided sanding and relatively low efficiency. Secondly, when the size of the wood is too large, the telescopic shell 2 can slide outward along the supporting shell 1, and the distance between the sanding discs 7 is increased, which is convenient for sanding requirements when the size of the wood is too large.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hand-held grinding device for wood processing, characterized in that: The invention comprises a supporting shell (1), two groups of telescopic shells (2), a motor (3), a transmission gear box (4), a first transmission mechanism (5), two groups of second transmission mechanisms (6) and two grinding discs (7). The two groups of telescopic shells (2) are symmetrically arranged and slidably connected to opposite sides of the supporting shell (1). The motor (3), the transmission gear box (4) and the first transmission mechanism (5) are all arranged in the supporting shell (1). The motor (3) is connected to and drives the transmission gear box (4). The transmission gear box (4) is connected to and drives the first transmission mechanism (5). The two grinding discs (7) are respectively connected to the two groups of telescopic shells (2) through two mounting gear shafts (8). The two grinding discs (7) are located between the two groups of telescopic shells (2). The two groups of second transmission mechanisms (6) are respectively arranged in the two groups of telescopic shells (2). One end of the second transmission mechanism (6) is slidably connected to the first transmission mechanism (5), and the other end of the second transmission mechanism (6) is connected to and drives the mounting gear shaft (8).

2. A hand-held sanding device for wood processing according to claim 1, characterized in that: The telescopic housing (2) is provided with a slide rail (9) on the outside, the supporting housing (1) is provided with a slide groove (10) on the inside, and the slide rail (9) is slidably connected in the slide groove (10).

3. A hand-held sanding device for wood processing according to claim 2, characterized in that: The first transmission mechanism (5) comprises a worm gear shaft (51), a worm wheel body (52) and a worm body (53); the worm body (53) is mounted on the transmission gear box (4); the worm gear shaft (51) is connected to the support housing (1) via a bearing seat; the worm wheel body (52) is mounted on the worm gear shaft (51), and the worm wheel body (52) is meshed with the worm body (53).

4. A hand-held sanding device for wood processing according to claim 3, characterized in that: The second transmission mechanism (6) comprises a transmission rod (61), a telescopic shaft (62), two first bevel gears (63) and two second bevel gears (64); the transmission rod (61) and the telescopic shaft (62) are both mounted in the telescopic housing (2) via a bearing seat; the axis of the telescopic shaft (62) is parallel to the axis of the mounting gear shaft (8), and the telescopic shaft (62) is slidably connected in the worm gear shaft (51); the transmission rod (61) is located between the telescopic shaft (62) and the mounting gear shaft (8); the two first bevel gears (63) are respectively mounted at the ends of the telescopic shaft (62) and the mounting gear shaft (8); the two second bevel gears (64) are respectively mounted at opposite ends of the transmission rod (61); the first bevel gear (63) is meshed with the second bevel gear (64), and the first bevel gear (63) and the second bevel gear (64) correspond one to one.

5. A hand-held sanding device for wood processing according to claim 4, characterized in that: A telescopic tube (11) is arranged on the worm gear shaft (51), the telescopic shaft (62) is inserted into the telescopic tube (11), and the external splines on the outer wall of the telescopic shaft (62) mesh with the internal splines in the inner wall of the telescopic tube (11).

6. A hand-held sanding device for wood processing according to claim 1, characterized in that: The supporting shell (1) is provided with a plurality of control buttons (12), and the plurality of control buttons (12) are electrically connected to the motor (3).

7. A hand-held sanding device for wood processing according to claim 1, characterized in that: The supporting shell (1) is provided with a handle (13).

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