CN215269837U

CN215269837U - Hydraulic fixing and anti-loosening device for guide plate of saw blade of chain saw

Info

Publication number: CN215269837U
Application number: CN202120408971.5U
Authority: CN
Inventors: 班华电; 季锐; 樊品珍
Original assignee: Guangxi Xuwo Engineering Machinery Equipment Co ltd
Current assignee: Guangxi Xuwo Engineering Machinery Equipment Co ltd
Priority date: 2021-02-24
Filing date: 2021-02-24
Publication date: 2021-12-24
Anticipated expiration: 2031-02-24

Abstract

The utility model discloses a fixed and locking device of hydraulic pressure of chain saw blade baffle, including hydraulic motor, saw board deflection bearing frame, connecting rod seat, saw board tensioning piece and chain saw blade baffle, the cover is established on hydraulic motor's the output shaft saw board deflection bearing frame cup joints on the saw board deflection bearing frame of keeping away from hydraulic motor one side the connecting rod seat is at the outside fixed mounting of connecting rod seat saw board tensioning piece, the fixed tip of chain saw blade baffle sticiss through saw board tensioning piece to be fixed on the connecting rod seat be provided with into oil pipe on the top outer wall of connecting rod seat the front end of connecting rod seat is the U-shaped and outwards stretches out and be provided with oiling cavity and lower oil cavity. The utility model discloses a but fastening of fixed and locking device chain saw blade baffle is adjusted with locking, has improved the reliability of felling machine and has dwindled the time of operation maintenance by a wide margin.

Description

Hydraulic fixing and anti-loosening device for guide plate of saw blade of chain saw

Technical Field

The utility model belongs to the technical field of the equipment of logging, especially, relate to a fixed and locking device of hydraulic pressure of chain saw blade baffle.

Background

In current felling machine, in order to realize locking and fastening of chain guide, the fastening and locking of the saw chain guide of felling machine adopt bolt fastening mode usually, bolt looseness can appear in the long-term use of felling machine in this kind of fastening mode, there is bulky, heaviness, the tensile force is easy to be changed to the tensioning of chain guide and fixed mode like this, and bolt looseness can appear in the long-term use of felling machine in this kind of fastening mode, screw thread corrosion card is dead, fastening check bolt is in case not hard up, the saw chain of high-speed work can break away from the guide, to personnel, all will produce very big hidden danger to the worker's apparatus. In order to make the nose of the feller more portable and portable, the nose of the feller is relatively narrow, and the space for using tools to perform knob operation on the fastening bolt is also insufficient.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixed and locking device of hydraulic pressure of chain saw blade baffle, according to the utility model discloses a fastening and locking of fixed and locking device chain saw blade baffle are adjusted, have improved the reliability of feller and have reduced the time of operation maintenance by a wide margin. In order to achieve the above purpose, the following technical effects are adopted:

according to one aspect of the present invention, there is provided a hydraulic fixing and anti-loosening device for a chain saw blade guide plate, comprising a hydraulic motor, a saw blade deflection bearing seat, a connecting rod seat, a saw blade tensioning block and a chain saw blade guide plate, wherein the saw blade deflection bearing seat is sleeved on an output shaft of the hydraulic motor, the connecting rod seat is sleeved on the saw blade deflection bearing seat far away from the hydraulic motor, the output shaft of the hydraulic motor extends from one side of the saw blade deflection bearing seat to the other side and then is sleeved on the connecting rod seat, the saw blade tensioning block is fixedly installed outside the connecting rod seat, the end of the saw blade tensioning block extends outwards to fix the chain saw blade guide plate, the fixed end of the chain saw blade guide plate is pressed and fixed on the connecting rod seat through the saw blade tensioning block, an oil inlet pipe joint is arranged on the outer wall of the top end of the connecting rod seat, an oil feeding cavity and an oil discharging cavity are arranged at the front end of the connecting rod seat in a U shape and extend outwards, advance oil pipe joint respectively with oil cavity and lower oil cavity intercommunication, saw board tensioning block is clearance slide clamping and connects in the opening between oil cavity and the lower oil cavity, outwards extend out in last oil cavity have the transmission to connect the last piston rod on the upper portion inside wall of saw board tensioning block, outwards extend out in the lower oil cavity have the transmission to connect the lower piston rod on the lower lateral wall in the lower part of saw board tensioning block.

In a further preferred mode of the above scheme, an oil discharge pipe joint is arranged on the lower outer side wall of the connecting rod seat.

Above-mentioned scheme is further preferred, is provided with the parallel slide groove of mutual symmetry respectively at the inside wall lower limb of last oil cavity body and the inside wall upper edge of lower oil cavity body, the inboard of saw board tensioning block passes through card strip slip joint in slide groove.

In a further preferred embodiment of the above-mentioned solution, the connecting rod base is sleeved on the output shaft of the hydraulic motor through a cylindrical rolling bearing, and a first O-shaped gasket is disposed between the saw plate deflection bearing base and the connecting rod base.

According to the scheme, the hydraulic motor and the saw plate deflection bearing seat are fixedly connected through a first inner hexagonal screw, and a first elastic cushion is sleeved on the first inner hexagonal screw.

According to the scheme, a chain saw blade is arranged on the outer wall of the chain saw blade guide plate in a surrounding mode, a chain wheel is arranged inside the center of the outer side of the connecting rod seat, the chain saw blade guide plate is in transmission connection with the chain wheel through the chain saw blade, the chain wheel is in transmission connection with the output shaft of the hydraulic motor, the mounting shaft in the center of one side of the chain wheel is installed in the center of the outer side of the connecting rod seat in an embedded mode through a limiting flange, and a second O-shaped gasket is arranged between the limiting flange and the center of the outer side of the connecting rod seat.

Above-mentioned scheme is further preferred, passes through second hexagon socket head cap screw fixed mounting in the outside of connecting rod seat flange, and the cover is equipped with the second bullet pad on the second hexagon socket head cap screw.

According to the scheme, the chain wheel pressing block and the fastening hexagon socket head cap screw are arranged at the center of the outer side of the chain wheel, and the fastening hexagon socket head cap screw penetrates through the chain wheel pressing block, the mounting shaft of the chain wheel, the limiting flange and the connecting rod seat in sequence to be fixedly connected with the output shaft of the hydraulic motor.

According to the scheme, the O-shaped elastic sheet and the O-shaped flat gasket are sleeved on the fastening inner hexagonal bolt and positioned on the outer side of the chain wheel pressing block.

To sum up, the utility model adopts the above technical scheme, the utility model discloses an following technological effect has:

(1) the utility model discloses a main oil pocket in the connecting rod seat leads hydraulic oil respectively to fastening and locking cavity and the lower oil cavity that oils in, and hydraulic oil promotes piston and piston rod in the cavity and promotes saw board tensioning block, when treating that the oil pressure in the cavity reaches the preset pressure value to realize the fastening and locking of chain saw blade baffle.

(2) The utility model discloses the fastening and the locking mode of the chain saw blade baffle of often adopting in the felling machine are adjusted by the bolt-up for hydraulic fastening and locking. After the hydraulic fastening and anti-loosening mode is adopted, the high integration and high reliability of a hydraulic system are utilized, the operation and maintenance time can be greatly shortened, the maneuverability is provided for the reduction and portability of the whole volume of the feller, and the hidden danger of fault risks brought by the adoption of the bolt fastening and anti-loosening mode to operators and tools under the conventional condition is avoided.

Drawings

FIG. 1 is a schematic view of the overall installation structure of a hydraulic fixing and anti-loosening device of a guide plate of a saw blade of a chain saw;

FIG. 2 is a schematic view of the main structure of the hydraulic fixing and anti-loosening device of the saw blade guide plate of the chain saw of the present invention;

fig. 3 is a schematic structural view of the connecting rod seat structure of the present invention;

FIG. 4 is a schematic view of the structure A-A of the connecting rod seat of the present invention;

fig. 5 is a schematic view of the internal structure of the connecting rod seat of the present invention;

in the drawing, a hydraulic motor 1, a saw plate deflection bearing seat 2, a connecting rod seat 3, a saw plate tensioning block 4, a chain saw blade guide plate 5, an oil inlet pipe joint 6, an oil discharge pipe joint 7, a pressure oil source 8, a high-pressure oil pipe 9, a first inner hexagonal screw 10, a first elastic pad 11, a first O-shaped gasket 21, an oil feeding cavity 30, an upper piston body 30a, a lower oil cavity 31, a lower piston body 31a, a limiting flange 32, a second O-shaped gasket 33, a second inner hexagonal screw 34, a second elastic pad 35, a chain wheel pressing block 36, a chain wheel 40, a chain saw blade 50, a sliding clamping groove 301, an upper piston rod 300 and a lower piston rod 310.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and by referring to preferred embodiments. It should be understood, however, that the numerous specific details set forth in the specification are merely set forth to provide a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

Referring to fig. 1 and 2, the hydraulic fixing and anti-loosening device for a saw blade guide plate of a chain saw according to the present invention comprises a hydraulic motor 1, a saw blade deflection bearing seat 2, a connecting rod seat 3, a saw blade tensioning block 4 and a saw blade guide plate 5, wherein the saw blade deflection bearing seat 2 is sleeved on an output shaft of the hydraulic motor 1, the connecting rod seat 3 is sleeved on the saw blade deflection bearing seat 2 away from one side of the hydraulic motor 1, the output shaft of the hydraulic motor 1 extends from one side of the saw blade deflection bearing seat 2 to the other side and then is sleeved on the connecting rod seat 3, the saw blade tensioning block 4 is fixedly installed outside the connecting rod seat 3, the saw blade guide plate 5 extends and is fixed along the end of the saw blade tensioning block 4, a chain saw blade 50 is installed around the outer wall of the saw blade guide plate 5, the fixed end of the saw blade guide plate 5 is tightly pressed and fixed on the connecting rod seat 3 through the saw blade tensioning block 4, an oil inlet pipe joint 6 is arranged on the outer wall of the top end of the connecting rod seat 3, an oil discharging pipe joint 7 is arranged on the lower outer side wall of the connecting rod seat 3, the oil inlet pipe joint 6 is connected with a pressure oil source 8 through a high-pressure oil pipe 9, when the felling operation is carried out, a hydraulic motor 1 is started to rotate, an output shaft of the hydraulic motor 1 drives a chain saw blade 50 to circularly rotate on a chain saw blade guide plate 5 for carrying out the sawing operation, meanwhile, the pressure oil source 2 is externally operated to convey the pressure oil into the connecting rod seat 1 through the high-pressure oil pipe 9, the pressure oil enters the connecting rod seat 3 with the fastening and anti-loosening functions after being distributed through a main oil cavity in the connecting rod seat 1, when the oil pressure in the cavity of the connecting rod seat 3 reaches a preset value, the saw plate tensioning block 4 is pushed to drive the chain saw blade guide plate 5 to achieve the fastening and anti-loosening functions, when the felling operation is finished, the pressure oil source 8 is firstly closed through a valve group, and (3) cutting off the pressure oil, releasing the pressure through the oil discharge pipe joint 7, and returning the pressure oil in the pressure oil source 8 to the pressure oil source 8.

In the utility model, as shown in fig. 1, fig. 3, fig. 4 and fig. 5, the front end of the connecting rod base 3 is U-shaped and extends outward to form an upper oil cavity 30 and a lower oil cavity 31, the oil inlet pipe joint 6 is respectively communicated with the upper oil cavity 30 and the lower oil cavity 31, the saw plate tensioning block 4 is in clearance sliding joint in the opening between the upper oil cavity 30 and the lower oil cavity 31, an upper piston rod 300 which is in transmission connection with the inner side wall of the upper part of the saw plate tensioning block 4 extends outward in the upper oil cavity 30, a lower piston rod 310 which is in transmission connection with the inner side wall of the lower part of the saw plate tensioning block 4 extends outward in the lower oil cavity 31, an upper piston body 30a is arranged in the upper oil cavity 30, one end of the upper piston rod 300 is fixed on the upper piston body 30a, the other end of the upper piston rod 300 extends outward from the inner side of the upper oil cavity 30 to be in transmission connection with the saw plate 4, be provided with piston body 31a down in lower oil cavity 31, the one end of piston rod 310 is fixed down on piston body 31a, and the other end of lower piston rod 310 outwards stretches out in oil cavity 31 under from and is connected with saw board tensioning block 4 transmission, and the inside wall lower limb of last oil cavity 30 and the inside wall upper limb of oil cavity 31 down are provided with the parallel slip draw-in groove 301 of mutual symmetry respectively, the inboard of saw board tensioning block 4 is passed through the card strip slip joint in slip draw-in groove 301, and saw board tensioning block 4 slides in the stroke scope of this slip draw-in groove 301, realizes fastening and locking. When in lumbering operation, the pressure oil source 2 is externally operated and is connected to the oil inlet pipe joint 6 through the high-pressure oil pipe 9 and conveys pressure oil into the connecting rod seat 1, and the pressure oil is distributed by the main oil cavity in the connecting rod seat 1 and then enters the oil feeding cavity 30 and the oil discharging cavity 31 with fastening and anti-loosening functions. The pressure oil in the upper oil cavity 30 and the lower oil cavity 31 respectively pushes the pistons arranged in the upper oil cavity 30 and the lower oil cavity 31, so that the pistons slide in the fastening and anti-loosening directions through the piston rods and the saw plate tensioning block 4, the fastening and anti-loosening are realized when the oil pressure in the cavity reaches a preset value, and the locking device is arranged to prevent misoperation for safety and reliability. When the felling operation is finished, the pressure oil source 8 is shut off through the valve bank, the pressure oil is isolated, the pressure is relieved through the oil discharge pipe joint 7, and the pressure oil in the upper oil cavity 30 and the pressure oil in the lower oil cavity 31 flow back to the pressure oil source 8. If necessary, the oil discharge bolt (not shown) at the end of the oil pipe tightening and loosening-preventing pipe joint 7 is adjusted to discharge residual oil, so as to finally achieve the purpose of releasing the contact fastening and loosening prevention of the chain saw guide plate, a pressure oil source is supplied by the valve group, a pressure sensor can be arranged in the connecting rod seat or at the outlet of the valve group, and the pressure sensor can adjust and monitor the fastening and loosening-preventing oil pressure. And locking devices are arranged in the upper oil cavity body and the lower oil cavity body, so that misoperation of the fixing and anti-loosening device due to hydraulic fluctuation is prevented.

The utility model discloses in, it is shown with fig. 5 to combine fig. 1, connecting rod seat 3 establishes through cylindrical rolling bearing cover 20 on hydraulic motor 1's the output shaft, be provided with first O shape packing ring 21 between saw board deflection bearing frame 2 and the connecting rod seat 3, through first hexagon socket head cap screw 10 fixed connection between hydraulic motor 1 and the saw board deflection bearing frame 2, and the cover is equipped with first bullet pad 11 on first hexagon socket head cap screw 10, can make and be connected stability between saw board deflection bearing frame 2 and the hydraulic motor 1 better, first bullet pad 11 makes it have certain buffering space each other, avoids wearing and tearing each other between saw board deflection bearing frame 2 and the hydraulic motor 1 to lead to becoming flexible. A chain wheel 40 is arranged in the center of the outer side of the connecting rod seat 3, the chain saw blade guide plate 5 is in transmission connection with the chain wheel 40 through a chain saw blade 50, the chain wheel 40 is in transmission connection with the output shaft of the hydraulic motor 1, the limiting flange 32 is fixedly arranged on the outer side of the connecting rod seat 3 through a second inner hexagonal screw 34, a second elastic cushion 35 is sleeved on the second inner hexagonal screw 34, a mounting shaft 41 in the center of one side of the chain wheel 30 is embedded and mounted in the center of the outer side of the connecting rod seat 3 through the limiting flange 32, a second O-shaped gasket 33 is arranged between the limiting flange 32 and the center of the outer side of the connecting rod seat 3, the mounting shaft 41 of the chain wheel 30 is limited and fixed in the connecting rod seat 3 through the limiting flange 32, the second O-shaped gasket 33 prevents the friction between the limiting flange 32 and the connecting rod seat 3, and the limiting flange 32 is worn, so that the connection stability of the limiting flange 32 is better, a sprocket clamping block 36 and a fastening hexagon socket head cap screw 37 are arranged at the center of the outer side of the sprocket 30, and the fastening hexagon socket head cap screw 37 penetrates through the sprocket clamping block 36, a mounting shaft 41 of the sprocket 40, the limiting flange 32 and the connecting rod seat 3 in sequence to be fixedly connected with the output shaft of the hydraulic motor 1; an elastic sheet 38 and a flat pad 39 are sleeved on the fastening hexagon socket head cap screw 37 and positioned outside the chain wheel pressing block 36, the elastic sheet 38 and the flat pad 39 can enable the chain wheel pressing block 36, the chain wheel 40 and the output shaft of the hydraulic motor 1 to be better in connection stability, the chain wheel pressing block 36 further fixes the chain wheel 40 through fastening the hexagon socket head cap screw 37, the chain wheel 40 is stably connected to the connecting rod seat 3 and the output shaft of the hydraulic motor 1, the chain wheel 40 is driven to rotate when the hydraulic motor 1 rotates, at the moment, the chain wheel 40 drives the chain saw blade 50 to circularly rotate along the chain saw blade guide plate 5 for sawing, the pressure oil source 2 transmits the pressure oil to the upper oil cavity 30 and the lower oil cavity 31 in the connecting rod seat 1 through the high-pressure oil pipe 9, and the piston bodies in the upper oil cavity 30 and the lower oil cavity 31 push the saw blade pressing block 4 to slide in a clearance through the piston rod, so as to adjust the tightness state between the chain wheel 40 and the chain saw blade 50, and drives the chain saw blade guide plate 5 and the chain saw blade 50 to achieve the fastening and anti-loosening effects.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a fixed and locking device of hydraulic pressure of chain saw blade baffle which characterized in that: comprises a hydraulic motor (1), a saw plate deflection bearing seat (2), a connecting rod seat (3), a saw plate tensioning block (4) and a chain saw blade guide plate (5), wherein the saw plate deflection bearing seat (2) is sleeved on an output shaft of the hydraulic motor (1), the connecting rod seat (3) is sleeved on the saw plate deflection bearing seat (2) far away from one side of the hydraulic motor (1), the output shaft of the hydraulic motor (1) extends out of one side of the saw plate deflection bearing seat (2) to the other side and is sleeved with the connecting rod seat (3), the saw plate tensioning block (4) is fixedly arranged at the outer side of the connecting rod seat (3), the end part of the saw plate tensioning block (4) extends outwards to be fixed on the chain saw blade guide plate (5), the fixed end part of the chain saw blade guide plate (5) is pressed and fixed on the connecting rod seat (3) through the saw plate tensioning block (4), an oil inlet pipe joint (6) is arranged on the outer wall of the top end of the connecting rod seat (3), the front end of connecting rod seat (3) is that the U-shaped outwards stretches out and is provided with cavity (30) and lower oil cavity (31) that oils, oil feed pipe joint (6) respectively with cavity (30) and lower oil cavity (31) intercommunication oil feed, saw board tensioning block (4) are clearance slip joint in the opening between cavity (30) and the lower oil cavity (31) of oiling, upwards outwards extend in last oil cavity (30) have the transmission to connect last piston rod (300) on the upper portion inside lateral wall of saw board tensioning block (4), outwards extend in cavity (31) down and have transmission to connect lower piston rod (310) on the lower part inside lower lateral wall of saw board tensioning block (4).

2. The hydraulic fixing and anti-loosening device for the guide plate of a saw blade of a chain saw as claimed in claim 1, wherein: an oil discharge pipe joint (7) is arranged on the lower outer side wall of the connecting rod seat (3).

3. The hydraulic fixing and anti-loosening device for the guide plate of a saw blade of a chain saw as claimed in claim 1, wherein: the inside wall lower limb of last oil cavity (30) and the inside wall upper limb of lower oil cavity (31) are provided with the parallel slip draw-in groove (301) of mutual symmetry respectively, the inboard of saw board tensioning block (4) is through card strip slip joint in slip draw-in groove.

4. The hydraulic fixing and anti-loosening device for the guide plate of a saw blade of a chain saw as claimed in claim 1, wherein: the connecting rod seat (3) is arranged on an output shaft of the hydraulic motor (1) through a cylindrical rolling bearing sleeve (20), and a first O-shaped gasket (21) is arranged between the saw plate deflection bearing seat (2) and the connecting rod seat (3).

5. The hydraulic fixing and anti-loosening device for the guide plate of a saw blade of a chain saw as claimed in claim 4, wherein: the hydraulic motor (1) is fixedly connected with the saw plate deflection bearing seat (2) through a first inner hexagonal screw (10), and a first elastic cushion (11) is sleeved on the first inner hexagonal screw (10).

6. The hydraulic fixing and anti-loosening device for the guide plate of a saw blade of a chain saw as claimed in claim 1, wherein: the outer wall of chain saw blade guide plate (5) encircles and installs chain saw blade (50), at the outside center internally mounted of connecting rod seat (3) sprocket (40), chain saw blade guide plate (5) are connected with sprocket (40) transmission through chain saw blade (50), sprocket (40) with the output shaft transmission of hydraulic motor (1) is connected, the installation axle (41) of sprocket (40) one side center is installed through spacing flange (32) embedding in the outside center of connecting rod seat (3), is provided with second O shape packing ring (33) in the outside center of spacing flange (32) and connecting rod seat (3).

7. The hydraulic fixing and anti-loosening device for the guide plate of a saw blade of a chain saw as claimed in claim 6, wherein: the outer side of the connecting rod seat (3) is fixedly installed on the limiting flange (32) through a second inner hexagonal screw (34), and a second elastic cushion (35) is sleeved on the second inner hexagonal screw (34).

8. The hydraulic fixing and anti-loosening device for the guide plate of a saw blade of a chain saw as claimed in claim 6, wherein: the outer side center of the chain wheel (40) is provided with a chain wheel pressing block (36) and a fastening inner hexagonal bolt (37), and the fastening inner hexagonal bolt (37) penetrates through the chain wheel pressing block (36), a mounting shaft (41) of the chain wheel (40), a limiting flange (32) and a connecting rod seat (3) in sequence and is fixedly connected with an output shaft of the hydraulic motor (1).

9. The hydraulic fixing and anti-loosening device for the guide plate of a saw blade of a chain saw as claimed in claim 6, wherein: an O-shaped elastic sheet (38) and an O-shaped flat gasket (39) are sleeved on the fastening inner hexagon bolt (37) and positioned on the outer side of the chain wheel pressing block (36).