CN212444439U

CN212444439U - Gravity center adjusting device for ground grinding machine

Info

Publication number: CN212444439U
Application number: CN202020829859.4U
Authority: CN
Inventors: 林鑫森
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2021-02-02
Anticipated expiration: 2030-05-18

Abstract

The utility model relates to a gravity center adjusting device for a ground grinding machine, which comprises a lifting device, a supporting frame, a counterweight device and a flexible transmission part which are arranged on the plane of the middle section of a frame, wherein the supporting frame is arranged at two sides of the lifting device, the supporting frame is two channel steels with opposite openings, the lifting device comprises a transverse lifting rod arranged at the top of the lifting device, pulleys are arranged at two ends of the lifting rod, and the pulleys move up and down in the channel steels; the front upper end of the counterweight device is hinged on the frame; the upper end of the flexible transmission part is connected with the lifting rod, and the lower end of the flexible transmission part is connected with the rear end of the counterweight device. The advantages are that: adopt electric lift device, the transmission is stable, can bear the counter weight device of great gravity, and through chain tractive regulation counter weight device, can realize the counter weight of stepless regulation grinding machine at arbitrary inclination locking counter weight device to laborsaving, efficient is convenient for adjust, maintain the grinding disc, and moves reliably, safety, is convenient for transport and removes.

Description

Gravity center adjusting device for ground grinding machine

Technical Field

The utility model relates to a ground grinds construction equipment, concretely relates to focus adjusting device for ground grinds machine.

Background

The ground grinder is a multifunctional machine integrating different processes of quick sealing curing agent terrace, hardening terrace, epoxy terrace treatment, stone renovation, concrete leveling, grinding, polishing and the like, and has the characteristics of lightness, flexibility, high working efficiency and the like.

The ground grinding machine commonly used in the market at present comprises a rack, wherein a motor driving device is fixed at the front section of the rack and connected with a grinding disc, a handrail is arranged at the extending part of the rack towards the back upper part, when a grinding head or grinding materials are replaced, a handle needs to be lifted, a pedal falls down, a worker stands on the pedal and presses down by the gravity inertia of the whole body to realize tilting of the grinding disc, then the grinding materials are replaced, certain requirements on the physical strength of operators are met, and if the grinding equipment is large, the grinding head needs to be replaced by a plurality of people; the labor intensity is high, the time and the labor are wasted, the efficiency is low, the operation is inconvenient and unsafe.

In addition, when the center of gravity position and pressure of the ground by the grinding disc cannot be adjusted according to needs by a common ground grinding machine, although chinese patent CN204976221U discloses a grinding machine with a counterweight device, the center of gravity position and pressure of the ground by the grinding disc can be adjusted by the counterweight device, and it can also help workers to save labor when tilting the grinding disc, the counterweight device still needs manpower to rotate the configuration device, and only can fix the counterweight device at two fixed positions of the front section or the rear section of the grinding machine, and the weight of the counterweight cannot be adjusted, so that stepless adjustment cannot be realized.

SUMMERY OF THE UTILITY MODEL

The utility model discloses technical scheme is grinding the technical defect that the counter weight device needs manpower to adjust, can't realize infinitely variable control at the ground to prior art existence, provides one kind and utilizes motor regulation counter weight device, changes the focus position that the ground grind the focus adjusting device.

In order to achieve the above purpose, the technical solution of the present invention is as follows:

a gravity center adjusting device for a ground grinding machine comprises a rack, wherein a motor driving device is fixed at the front section of the rack and is connected with a grinding disc, a handrail is arranged at the extending position of the rack towards the rear upper part and comprises a lifting device, a supporting frame, a counterweight device and a flexible transmission piece, the lifting device, the supporting frame, the counterweight device and the flexible transmission piece are arranged on the plane of the middle section of the rack, the supporting frame is arranged on two sides of the lifting device and is vertical to the plane, the supporting frame is two channel steel with opposite openings, the lifting device comprises a transverse lifting rod arranged at the top of the lifting device, pulleys are arranged on two sections of the lifting rod, and the pulleys move up and down in the grooves of the channel steel along the vertical direction; the front upper section of the counterweight device is hinged on the frame through a hinge piece, and the position of the hinge piece is positioned below the lifting rod; the upper section of the flexible transmission part is connected with the lifting rod, and the rear section of the flexible transmission part is connected with the rear section of the counterweight device; the lifting device is controlled by a switch, the switch is electrically connected with a motor, and the motor drives the lifting device to work.

According to the technical scheme, the motor is adopted to drive the lifting device to work, namely, the telescopic rod of the lifting device can move up and down, so that the lifting rod arranged on the lifting device is driven to move up and down on a straight line of the fixed track in the channel steel; in addition, the front upper section of the counterweight device is hinged on the frame through a hinge, and the position of the hinge is positioned below the lifting rod; the upper section of the flexible transmission part is connected with the lifting rod, and the lower section of the flexible transmission part is connected with the rear section of the counterweight device, so that when the lifting rod moves upwards, the whole counterweight device rotates forwards under the pulling of the flexible transmission part, the gravity center of the whole ground grinding machine moves forwards, and when the lifting rod moves downwards, the whole counterweight device rotates backwards under the pulling of the flexible transmission part, and the gravity center of the whole ground grinding machine moves backwards.

By adopting the technical scheme, the lifting device is driven by the motor to work, and the lifting device is easy and labor-saving compared with a manual counterweight adjusting device, and can be stopped and started at any time due to the motor, namely, the position of the whole counterweight device can be determined at any position of the whole rotating space, so that stepless adjustment is realized compared with the situation that the counterweight device is fixed at two fixed positions of the front section or the rear section of the grinding machine in the prior art.

Further, the lifting device is an electro-hydraulic lifting device or an electric screw lifting device, and the lifting device can bear larger gravity and has stable performance.

Further limited, the flexible transmission part is a chain, and the chain has certain flexibility in the traction process, so that the chain can bear large pulling force on the one hand, and can rotate around a proper amount of a connection point in the pulling process on the other hand, thereby avoiding the damage to the flexible transmission part in the lifting process and being suitable for the environment with large dust when the ground is ground.

Further, the supporting wheels are arranged on the lifting rod on two sides of the lifting device and between the pulleys, one section of the chain bypasses the supporting wheels, the front section of the chain is connected with the plane, and in order to balance the pulling force of the two sections of the chain as much as possible, the chain between the supporting wheels and the plane is in an inclined angle. The supporting wheel can adopt a chain wheel, the chain wheel drives the chain to move upwards through the telescopic rod, the chain is pulled upwards, the chain can bear larger gravity, and the action reliability is high.

In addition, inject the counter weight device includes the counter weight tray and fixes the balancing weight at the counter weight tray, the balancing weight is fixed to be set up in the counter weight tray, adopts the fixed counter weight device who sets up in the counter weight tray of this kind of balancing weight, can adjust the balancing weight according to the demand of difference, simple structure, application scope is wide.

Still further, inject counter weight tray lower part install the gyro wheel, when the counter weight tray is in the lowest position, can the stable support counter weight tray, reduce the permanent effort to flexible transmission spare, guarantee ground grinder's stable form simultaneously, convenient removal and transportation.

In addition, the mode of limiting the fixed connection of the plurality of balancing weights is that fixing bolts penetrate through the balancing weights to fix the balancing weights in the balancing weight tray, and the mode is simple, practical and firm.

In view of the ease of operation, an electric switch defining a control of the lifting device is provided on the armrest.

Compared with the prior art, the utility model, have following advantage: adopt electro-hydraulic pressure elevating gear or electronic lead screw elevating gear, the transmission is stable, can bear the counter weight device of great gravity to through chain tractive regulation counter weight device, can lock the counter weight device at arbitrary inclination, realize the counter weight of infinitely variable control machine, with this grinding focus of adjusting the abrasive disc, and reduced the labour, efficient, be convenient for adjust, maintain the abrasive disc, and the action is reliable, safety, be convenient for transport and removal.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a front view of the present invention;

fig. 2 is a right side view of the present invention;

FIG. 3 is a view from A-A in FIG. 2;

FIG. 4 is a schematic view of the counterweight block of the present invention connected to a chain;

FIG. 5 is a schematic view of the counterweight of the present invention showing the change of the inclination angle;

the device comprises a frame, a motor driving device, a counterweight tray, a counterweight block, a counterweight supporting block, a counterweight.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1 to 5, a center of gravity adjusting apparatus for a floor grinding machine, the floor grinding machine comprising a frame 1, a motor driving unit 4 fixed to a front section of the frame 1, the motor driving unit 4 connected to a grinding disc 41, a handle 9 provided at a rear upper extension of the frame 1, the gravity center adjusting device comprises an electric screw rod lifting device 11, a support frame, a counterweight device and a chain 8 which are arranged on the plane of the middle section of the frame 1, the support frame is arranged at two sides of the electric screw rod lifting device 11, and is perpendicular to the plane, the support frame is two channel steels 2 with opposite openings, the electric screw rod lifting device 11 comprises a transverse lifting rod 12 arranged at the top of the electric screw rod lifting device, two sections of the lifting rod 12 are provided with pulleys 13, and the pulleys 13 move up and down in the groove of the channel steel 2 along the vertical direction; the front upper section of the counterweight device is hinged on the frame 1 through a hinge 3, and the position of the hinge 3 is positioned below the lifting rod 12; the upper section of the chain 8 is connected with the lifting rod 12, and the lower section of the chain 8 is connected with the rear section of the counterweight device; elevating gear 11 pass through on-off control, switch electric connection motor, the switch setting be in handrail 11 on, motor drive elevating gear 13 work.

Another connecting mode of the chain and the lifting rod is as follows: a support wheel 10 is arranged on a lifting rod 12 between two sides of the electric screw rod lifting device 11 and the pulleys 13, and the rear end of the chain 8 is connected with the rear end of the counterweight device; the middle part of the chain 8 rounds the supporting wheel 10, and the front section of the chain 8 is connected with the plane.

Wherein, the counter weight device includes counter weight tray 5 and fixes balancing weight 6 at counter weight tray 5, balancing weight 6 is fixed to be set up in

counter weight tray

5, 5 lower parts of counter weight tray install the gyro wheel, balancing weight 6 be the polylith, polylith balancing weight 6 passes through fixing bolt 7 fixed connection together, fixing bolt 7 pass balancing weight 6 and fix balancing weight 6 in the counter weight tray 5.

In addition, in the above technical scheme, the lifting device can also adopt an electro-hydraulic lifting device, and the effect is consistent with that of the electric screw lifting device 13.

The description of the embodiments is only for the purpose of helping to understand the method of the present invention and its core idea, and it should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, such as changing the electric lifting device, changing the flexible transmission member, etc., and these modifications and modifications also fall into the protection scope of the claims of the present invention.

Claims

1. A centre of gravity adjusting device for ground grinding machine, ground grinding machine includes the frame, and the anterior segment of frame is fixed with motor drive, motor drive connect the abrasive disc, the frame is equipped with handrail, its characterized in that to the upper rear extension: the lifting device comprises a lifting device, a support frame, a counterweight device and a flexible transmission part, wherein the lifting device, the support frame, the counterweight device and the flexible transmission part are arranged on a plane of the middle section of the rack, the support frame is arranged on two sides of the lifting device and is vertical to the plane, the support frame is two channel steels with opposite openings, the lifting device comprises a transverse lifting rod arranged at the top of the lifting rod, pulleys are arranged at two ends of the lifting rod, and the pulleys move up and down in grooves of the channel steels along the vertical direction; the front upper end of the counterweight device is hinged on the rack through a hinge piece, and the position of the hinge piece is positioned below the lifting rod; the upper end of the flexible transmission piece is connected with the lifting rod, and the rear end of the flexible transmission piece is connected with the rear end of the counterweight device; the lifting device is controlled by a switch, the switch is electrically connected with a motor, and the motor drives the lifting device to work.

2. A centre of gravity adjustment device for a floor grinding machine as claimed in claim 1, wherein: the lifting device is an electro-hydraulic lifting device or an electric screw rod lifting device.

3. A centre of gravity adjustment device for a floor grinding machine as claimed in claim 1, wherein: the flexible transmission part is a chain.

4. A centre of gravity adjustment device for a floor grinding machine as claimed in claim 3, wherein: the lifting rod is provided with a supporting wheel, the middle section of the chain bypasses the supporting wheel, and the front section of the chain is connected with the plane.

5. A centre of gravity adjustment device for a floor grinding machine as claimed in claim 1, wherein: the counterweight device comprises a counterweight tray and a counterweight block fixed on the counterweight tray, and the counterweight block is fixedly arranged in the counterweight tray.

6. A centre of gravity adjustment device for a floor grinding machine as claimed in claim 5, wherein: and the lower part of the counterweight tray is provided with a roller.

7. A centre of gravity adjustment device for a floor grinding machine as claimed in claim 5, wherein: the balancing weight is a plurality of balancing weights which are fixedly connected together through fixing bolts, and the fixing bolts penetrate through the balancing weights to fix the balancing weights in the balancing weight tray.